EP0276647A2 - Method for filling an insulating glass unit with filling gas - Google Patents

Method for filling an insulating glass unit with filling gas Download PDF

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Publication number
EP0276647A2
EP0276647A2 EP87890273A EP87890273A EP0276647A2 EP 0276647 A2 EP0276647 A2 EP 0276647A2 EP 87890273 A EP87890273 A EP 87890273A EP 87890273 A EP87890273 A EP 87890273A EP 0276647 A2 EP0276647 A2 EP 0276647A2
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EP
European Patent Office
Prior art keywords
insulating glass
glass unit
pressure
gas
filling
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Granted
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EP87890273A
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German (de)
French (fr)
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EP0276647A3 (en
EP0276647B1 (en
Inventor
Peter Lisec
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/677—Evacuating or filling the gap between the panes ; Equilibration of inside and outside pressure; Preventing condensation in the gap between the panes; Cleaning the gap between the panes
    • E06B3/6775—Evacuating or filling the gap during assembly

Definitions

  • the invention relates to a method for filling an insulating glass unit with a filling gas, the filling gas being introduced into the interior of the insulating glass unit via at least one inlet opening and air or air-gas mixture being removed from the interior of the insulating glass unit via at least one further opening, in particular being extracted .
  • the invention further relates to a device for carrying out the method with a device for supplying filling gas into the interior of an insulating glass unit via at least one opening provided in the spacer frame thereof and with a device with which air and / or gas from the interior of the insulating glass unit via at least one In the spacer frame the same opening provided can be removed.
  • the problem with the known devices is that it takes a long time for the filling process to be completed. It is therefore no longer possible to comply with the cycle times customary for the production of insulating glass (approximately 20 seconds). The reason for this is that the insulating glass unit must be filled slowly with filling gas so that no high pressure builds up in the pane, since otherwise the insulating glass unit would be destroyed, for example because the glass panes detach from the spacer frame.
  • the invention has for its object to provide a method of the type mentioned that can be carried out quickly and easily, so that the filling with filling gas does not interfere with the normal cycle times of an insulating glass production line.
  • this is achieved in that a pressure is exerted on the outer surfaces of the glass panes of the insulating glass unit to be filled during the filling process, which pressure is at least as great as the pressure in the interior of the insulating glass unit during the filling process.
  • the filling gas can be blown into the insulating glass unit at high pressure and thus at a correspondingly high speed, flow speeds of 60 to 200 l / min are possible. Because the glass panes are pressed against the spacer frame by the external pressure, there is no danger that the glass panes will come loose from the spacer frame. It is also prevented that spacer frames between the two glass panes of the insulating glass unit move outward under the pressure of the filling gas.
  • the procedure according to the invention is such that the pressure is applied to the glass panes during the filling process by applying plate-shaped pressure elements.
  • the volume of the interior of the insulating glass to be filled with the filling gas Unit determines that the amount of fill gas supplied is detected and that the filling process is terminated when the amount of fill gas detected is equal to the amount of fill gas to be filled into the interior.
  • the procedure can be such that the amount of filling gas supplied per unit time is determined and that the filling process is terminated if the product of the filling gas amount per unit time and duration of the filling process corresponds to the volume to be supplied to the interior of the insulating glass unit.
  • oxygen sensors in the suction line can be dispensed with, since the required amount of filling gas is simply blown into the insulating glass unit.
  • a preferred device according to the invention for carrying out the method is characterized in that two pressure plates are provided which can be placed against the outer surfaces of the glass panes of the insulating glass unit with preselectable pressure during the filling process.
  • the insulating glass unit is brought between the two pressure plates, for which purpose it is preferably provided that a conveyor device, for example a conveyor device, is provided at the lower end of the pressure plates that can be placed on the outer surfaces of the glass panes.
  • Transport rollers or an endless conveyor belt for the insulating glass unit is provided, and then the two pressure plates are placed from the outside against the glass panes of the insulating glass unit.
  • the two pressure plates can be the plates of a press for pressing insulating glass.
  • this is only a preferred variant, since it is sufficient in itself if two pressure plates are provided which lie against the outer surfaces of the two glass panes of the insulating glass unit and are pressed against the glass panes with corresponding pressure.
  • the device for supplying the filling gas and the suction device each have probes that can be inserted into openings (bores) provided in the spacer frame, then it is advisable to assign devices to the probes that each precisely center the probes Align between the glass panels of the insulating glass unit.
  • the height orientation of the probes is due to the position of the opening, or the like through a drilling device, punch. generated, specified and usually does not need to be scanned separately.
  • the device for supplying filling gas has at its end a block which can be placed on the narrow side of the insulating glass unit in the region of the opening in the spacer, that the block on its surface facing the insulating glass unit has a support made of elastic material, and that the support, when the block is put on, seals against the end edges of the glass panes and against the outer surface of the spacer between the glass panes.
  • the device has at its end a block that can be placed on the narrow side of the insulating glass unit in the area of the opening in the spacer, that the block has a support made of elastic material on its surface facing the insulating glass unit, and that when the block is applied, the support seals against the end edges of the glass panes and against the outer surface of the spacer between the glass panes.
  • Devices equipped in this way for supplying the filling gas and for discharging air and / or gas will preferably be used when the openings for supplying or discharging are provided in the region of vertical edges or a vertical edge of the insulating glass unit.
  • the free end of the device which can be placed on the insulating glass unit is supported in a height-adjustable and horizontally adjustable manner by a slide guided over the pressure plates.
  • the suction device held in this way or the block provided on it, or in particular the probe provided on it, is brought up from above and then inserted or placed laterally into the opening in the spacer.
  • a pressure measuring device is provided in the line for supplying the filling gas.
  • the pressure sensor in the feed line for the filling gas detects the pressure prevailing in the interior of the insulating glass unit and controls the device in such a way that the press is only opened or the pressure on the outer surfaces of the glass panes of the insulating glass unit is only released when the Pressure measuring device a signal is given that the gas pressure inside the insulating glass unit corresponds for example to the atmospheric pressure (or a preselected).
  • the opening in the spacer frame is closed by injecting a hardening mass, for example with the aid of a plug made of butyl rubber.
  • This mode of operation also makes it possible to adjust the pressure inside the insulating glass pane to the atmospheric pressure normally prevailing at the installation site depending on the altitude of the installation site.
  • the openings in the spacer can also be closed in another station.
  • the method of operation and the device according to the invention also make it possible to fill the insulating glass unit with filling gas (e.g. sulfur hexafluoride), which is only partially intended for soundproofing purposes. Until now, this was not possible with an ordinary oxygen sensor in the suction line. In the invention, it is simply sufficient to blow in the predetermined amount of filling gas, based on the volume of the interior of the insulating glass unit (i.e. the desired fraction of the interior volume).
  • filling gas e.g. sulfur hexafluoride
  • a device shown in FIGS. 1 and 2 for filling an insulating glass unit with a filling gas comprises two plates 1 and 2 which can be moved towards one another.
  • these plates 1 and 2 are the pressure plates of a plate press for pressing insulating glass, as is known from DE-A 31 30 645.
  • a stand-up conveyor 3 is provided below the lower edge of the plates 1, 2, which in the exemplary embodiment shown is formed from a plurality of rollers.
  • the stand-up conveyor 3 serves as a conveyor device for feeding insulating glass units 4 into the space between the two pressure plates 1 and 2.
  • the pressure plates 1 and 2 are assigned a device 5 for supplying filling gas and a device 6 for discharging air and / or gas.
  • the device 5 is connected to a filling gas source.
  • the device 6 can be connected to the suction side of a vacuum pump.
  • the device 5 is movably supported by means not shown in detail and can be moved forward to the insulating glass pane 4 between the plates 1 and 2, so that its probe 7 can be moved through an ab Standhalter 8 provided opening 9 extends, as shown in Figure 1.
  • a sensor 10 is connected to the device 5, which is connected to a shoulder 11 in the starting position on the front edge of one of the two glass panes 12 and 13 (in the exemplary embodiment shown in FIG Glass pane 12) of the insulating glass unit 4 is present.
  • the sensor 10 is moved to the other glass pane 13, that is to say transversely to the surface extension of the insulating glass unit 4, the projection 11 moving into the groove formed between the edges of the glass panes 12 and 13 and the spacer 8 until it finally touches the Inside the glass pane 13 runs up.
  • the stroke between the penetration into the edge groove and the emergence of the finger 11 on the glass pane 13 corresponds to the thickness of the interior 14, so that the center of the distance between the two inner surfaces of the glass panes 12 and 13 can be calculated.
  • the probe 7 can be aligned centrally in the lateral direction with respect to the opening 9.
  • the height alignment does not have to take place separately, since the height of the tool producing the opening (drill or punch) is predetermined in any case with respect to the lower horizontal edge of the insulating glass unit 4.
  • the device 6 comprises a carriage 16 which can be moved on a rail 17 which is arranged above the plates 1, 2.
  • the probe 15 is held on an arm 18 of the device 6 which projects between the plates 1 and 2 and can be moved up and down.
  • drives not shown e.g. Chains or cable drives or also pressure medium motors are provided.
  • the two pressure plates 1 and 2 and the up are again adjusting conveyor 3 is provided for an insulating glass unit 4.
  • the device 5 and the device 6 have on their parts which can be brought into engagement with the insulating glass unit 4, blocks 20, which have on their side facing the insulating glass units supports 21 made of elastically flexible material, for example foam material. Both the block 20 and the support 21 are penetrated by a bore 23 which is coaxial with the interior of the feed line 22 and which is aligned with the opening 9 in the spacer 8 of the insulating glass unit 4 when the block 20 is placed on the insulating glass unit 4.
  • the support 21 of the block 20 is deformed and lies in a sealing manner on the front edges of the glass panes 12 and 13 and on the outer surface of the spacer 8, so that even without a probe 7 or 15 a tight one Connection of the device 5 or the device 6 to the interior 14 of the insulating glass unit 4 is reached.
  • FIG. 5 the orientation of the insulating glass unit 4 with respect to the pressure plates 1 and 2 has been modified from the illustration in FIG.
  • the orientation according to FIG. 3 is preferred, where the insulating glass unit 4 protrudes somewhat beyond the vertical side edge 24 of the plates 1 and 2.
  • the block 20 can then be made wider and, unlike in the embodiment according to FIG. 5, it is possible to use a uniform block 20 to carry out the filling or suctioning in insulating glass units with different thicknesses.
  • a pressure measuring device 25 and a flow rate measuring device 26 are associated with the device for supplying filling gas into the insulating glass unit 4.
  • the flow rate measuring device either measures the total amount of filling gas supplied by the device 5 or that per unit of time over the Filling device 5 supplied amount of filling gas.
  • the filling volume i.e. the volume of the interior 14 of the insulating glass unit 4 to be filled can be calculated (based on the width and height of the insulating glass unit 4 in conjunction with the distance between the two glass panes 12 and 13, which was previously determined by the sensor 10).
  • the required fill gas quantity is determined on the basis of the volume determined. It can then be carried out in such a way that, based on the flow quantity of filling gas measured by the flow measuring device per unit of time, the filling is terminated after a predetermined period of time, the predetermined period of time corresponding to the volume of filling gas that is to be supplied, based on the flow rate.
  • the volume of filling gas to be supplied generally corresponds to 110-120% of the volume of the interior 14 of the insulating glass unit 4.
  • a pressure measuring device 25 is provided in the device 5.
  • This pressure measuring device 25 permits the opening of the pressure plates 1, 2 only after a predetermined pressure in the interior 14 of the insulating glass unit 4 has been reached.
  • This pressure can correspond to the atmospheric pressure at the place of manufacture or deviate upwards or downwards from this.
  • the achievement of the desired pressure in the interior 14 of the insulating glass unit 4 can be accelerated in that after the supply of filling gas has been interrupted, the device 5 further sucks gas out of the interior 14 via the device 6.
  • the openings in the spacer 8 become hard by injection tendency, for example with the aid of a plug made of butyl rubber, closed.
  • the openings in the spacer can also be closed in another station to shorten the cycle time.
  • the protrusion of the insulating glass unit 4 shown in FIG. 3 over the edge 24 of the plates 1, 2 is in practice about 2-3 mm.
  • the pressure which is exerted on the outer surfaces of the glass panes 12 and 13 of the insulating glass unit 4 can be less or greater or the same as the pressure built up in the interior 14 during the filling process.
  • the pressure exerted by the glass panes 1 and 2 is preferably at least equal to the pressure in the interior 14 of the insulating glass unit 4, so that the adhesive connection between the spacer 8 and the glass panes 12 and 13 of the insulating glass unit 4 is not stressed. A greater pressure will be applied if a simultaneous pressing of the insulating glass unit 4 is carried out with the filling of the insulating glass unit 4 with filling gas.

Abstract

Beim Füllen des Innenraumes (14) einer Isolierglaseinheit (4) mit einem Füllgas wird während des Füllvorganges auf die Außenflächen der Glasscheiben (12, 13) der zu füllenden Isolierglaseinheit (4) einen Druck ausgeübt. Hiezu wird eine Vorrichtung mit einer Einrichtung (5) zum Zuführen von Füllgas und mit einer Einrichtung (6), mit der Luft und/oder Gas aus dem Innenraum (14) der Isolierglaseinheit (4) abführbar ist, vorgeschlagen, bei der zwei Druckplatten (1, 2) vorgesehen sind, die während des Füllvorganges mit vorwählbarem Druck gegen die Außenflächen der Glasscheiben (12, 13) der Isolierglaseinheit (4) anlegbar sind.When the interior (14) of an insulating glass unit (4) is filled with a filling gas, pressure is exerted on the outer surfaces of the glass panes (12, 13) of the insulating glass unit (4) to be filled during the filling process. For this purpose, a device is proposed with a device (5) for supplying filling gas and with a device (6) with which air and / or gas can be removed from the interior (14) of the insulating glass unit (4), in which two pressure plates ( 1, 2) are provided, which can be placed against the outer surfaces of the glass panes (12, 13) of the insulating glass unit (4) during the filling process with preselectable pressure.

Description

Die Erfindung betrifft ein Verfahren zum Füllen einer Isolierglaseinheit mit einem Füllgas, wobei das Füllgas über mindestens eine Einlaßöffnung in den Innenraum der Isolierglaseinheit eingeführt und über wenigstens eine weitere Öffnung Luft bzw. Luft-Gas-Gemisch aus dem Inneren der Isolierglaseinheit abgeführt, insbesondere abgesaugt wird.The invention relates to a method for filling an insulating glass unit with a filling gas, the filling gas being introduced into the interior of the insulating glass unit via at least one inlet opening and air or air-gas mixture being removed from the interior of the insulating glass unit via at least one further opening, in particular being extracted .

Die Erfindung betrifft weiters eine Vorrichtung zur Durchführung des Verfahrens mit einer Einrichtung zum Zuführen von Füllgas in den Innenraum einer Isolierglas­einheit über wenigstens eine im Abstandhalterrahmen der­selben vorgesehene Öffnung und mit einer Einrichtung, mit der Luft und/oder Gas aus dem Innenraum der Isolierglas­einheit über wenigstens eine im Abstandhalterrahmen der­selben vorgesehene weitere Öffnung abführbar ist.The invention further relates to a device for carrying out the method with a device for supplying filling gas into the interior of an insulating glass unit via at least one opening provided in the spacer frame thereof and with a device with which air and / or gas from the interior of the insulating glass unit via at least one In the spacer frame the same opening provided can be removed.

Es sind schon verschiedene Verfahren und Vorrichtungen zum Füllen von Isolierglas mit einem Füllgas vorgeschla­gen worden. In diesem Zusammenhang wird auf die EP-A 46 847, die DE-C 30 25 122 sowie die beiden DE-U 80 25 477 und 80 25 478 verwiesen.Various methods and devices for filling insulating glass with a filling gas have already been proposed. In this context, reference is made to EP-A 46 847, DE-C 30 25 122 and the two DE-U 80 25 477 and 80 25 478.

Problematisch bei den bekannten Vorrichtungen ist es, daß es lange zeit dauert, bis der Füllvorgang beendet ist. Es sind daher die für die Isolierglasherstellung üblichen Taktzeiten (etwa 20 Sekunden) nicht mehr einzuhalten. Grund hiefür ist es, daß das Füllen der Isolierglasein­heit mit Füllgas langsam erfolgen muß, damit sich in der Scheibe kein hoher Druck aufbaut, da sonst die Isolier­glaseinheit zerstört würde, beispielsweise weil sich die Glasscheiben vom Abstandhalterrahmen lösen.The problem with the known devices is that it takes a long time for the filling process to be completed. It is therefore no longer possible to comply with the cycle times customary for the production of insulating glass (approximately 20 seconds). The reason for this is that the insulating glass unit must be filled slowly with filling gas so that no high pressure builds up in the pane, since otherwise the insulating glass unit would be destroyed, for example because the glass panes detach from the spacer frame.

Häufig wird beim Füllen von Isolierglaseinheiten mit ei­nem Füllgas das Füllen solange durchgeführt, bis im Be­ reich der Gasaustrittsstelle der Sauerstoffgehalt des ab­geführten Gases einen vorgegebenen Wert unterschreitet. Es ist daher in der Abführleitung ein Sauerstoffsensor vorzusehen, was eine weitere Versteuerung der Anlagen zur Folge hat.When filling insulating glass units with a filling gas, the filling is often carried out until in the loading range of the gas outlet point the oxygen content of the discharged gas falls below a predetermined value. An oxygen sensor must therefore be provided in the discharge line, which results in further control of the systems.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Gattung anzugeben, das rasch und einfach durchgeführt werden kann, so daß das Füllen mit Füllgas die normalen Taktzeiten einer Isolierglasherstel­lungslinie nicht stört.The invention has for its object to provide a method of the type mentioned that can be carried out quickly and easily, so that the filling with filling gas does not interfere with the normal cycle times of an insulating glass production line.

Erfindungsgemäß wird dies dadurch erreicht, daß man wäh­rend des Füllvorganges auf die Außenflächen der Glas­scheiben der zu füllenden Isolierglaseinheit einen Druck ausübt, der wenigstens gleich groß ist wie der Druck im Innenraum der Isolierglaseinheit während des Füllvorgan­ges.According to the invention, this is achieved in that a pressure is exerted on the outer surfaces of the glass panes of the insulating glass unit to be filled during the filling process, which pressure is at least as great as the pressure in the interior of the insulating glass unit during the filling process.

Auf Grund der erfindungsgemäß vorgeschlagenen Maßnahme kann das Füllgas mit hohem Druck und damit mit entspre­chend hoher Geschwindigkeit, möglich sind Strömungsge­schwindigkeiten von 60 bis 200 l/min, in die Isolierglas­einheit eingeblasen werden. Dadurch, daß die Glasscheiben durch den von außen angelegten Druck gegen den Abstand­halterrahmen gepreßt werden, besteht keine Gefahr, daß sich die Glasscheiben vom Abstandhalterrahmen lösen. Auch wird verhindert, daß Abstandhalterrahmen zwichen den bei­den Glasscheiben der Isolierglaseinheit unter dem Druck des Füllgases nach außen wandern.On the basis of the measure proposed according to the invention, the filling gas can be blown into the insulating glass unit at high pressure and thus at a correspondingly high speed, flow speeds of 60 to 200 l / min are possible. Because the glass panes are pressed against the spacer frame by the external pressure, there is no danger that the glass panes will come loose from the spacer frame. It is also prevented that spacer frames between the two glass panes of the insulating glass unit move outward under the pressure of the filling gas.

In einer besonders einfachen Variante wird erfindungsge­mäß so vorgegangen, daß man den Druck auf die Glasschei­ben während des Füllvorganges durch Anlegen von platten­förmigen Druckelementen aufbringt.In a particularly simple variant, the procedure according to the invention is such that the pressure is applied to the glass panes during the filling process by applying plate-shaped pressure elements.

Erfindungsgemäß bewährt es sich, wenn man das Volumen des Innenraumes der mit dem Füllgas zu füllenden Isolierglas­ einheit ermittelt, daß man die zugeführte Füllgasmenge erfaßt, und daß man den Füllvorgang abbricht, wenn die erfaßte Füllgasmenge gleich der in den Innenraum einzu­füllenden Menge an Füllgas ist. Bevorzugt kann dabei so vorgegangen werden, daß man die Menge des je Zeiteinheit zugeführten Füllgases ermittelt und daß man den Füllvor­gang abbricht, wenn das Produkt aus Füllgasmenge je Zeit­einheit und Dauer des Füllvorganges dem dem Innenraum der Isolierglaseinheit zuzuführenden Volumen entspricht. Bei dieser Variante sind Sauerstoffsensoren in der Absauglei­tung entbehrlich, da einfach die benötigte Menge an Füll­gas in die Isolierglaseinheit eingeblasen wird. Bei die­ser erfindungsgemäßen Verfahrensvariante erweist es sich als besonders günstig, daß man mit hohen Gasströmungsge­schwindigkeiten arbeiten kann, so daß eine Vermischung zwischen dem Füllgas und der im Innenraum der Isolier­glaseinheit zu verdrängenden Luft weitestgehend vermieden wird.According to the invention, it proves useful if the volume of the interior of the insulating glass to be filled with the filling gas Unit determines that the amount of fill gas supplied is detected and that the filling process is terminated when the amount of fill gas detected is equal to the amount of fill gas to be filled into the interior. Preferably, the procedure can be such that the amount of filling gas supplied per unit time is determined and that the filling process is terminated if the product of the filling gas amount per unit time and duration of the filling process corresponds to the volume to be supplied to the interior of the insulating glass unit. With this variant, oxygen sensors in the suction line can be dispensed with, since the required amount of filling gas is simply blown into the insulating glass unit. In this variant of the method according to the invention, it proves to be particularly advantageous that one can work with high gas flow velocities, so that mixing between the filling gas and the air to be displaced in the interior of the insulating glass unit is largely avoided.

Um zu verhindern, daß der Druck auf die Außenflächen der Glasscheiben der Isolierglaseinheit zu früh aufgehoben wird, empfiehlt es sich, beim erfindungsgemäßen Verfahren so vorzugehen, daß man nach Beendigung des Füllvorganges den Druck in der Gaszuführleitung mißt, und daß man den Druck auf die Außenflächen der Glasscheiben der Isolier­glaseinheit erst aufhebt, wenn der so ermittelte Druck einem vorgewählten Wert, z.B. dem atmosphärischen Druck, entspricht. Diese Verfahrensvariante eröffnet auch die Möglichkeit, in der Isolierglaseinheit einen vorgewählten Druck aufzubauen, um ein Einbuchten oder Ausbeulen der Glastafeln der Isolierglaseinheit bei unterschiedlichem Herstellungs- und Einbauort (geringerer Luftdruck bei hö­heren Einbauorten bzw. höherer Luftdruck bei tiefer lie­genden Einbauorten) zu vermeiden. Hiezu kann so vorgegan­gen werden, daß man den Druck des Gases im Inneren des Isolierglases auf einen vorgewählten Wert einstellt, wo­bei der vorgewählte Wert des Druckes dem mittleren Luft­druck am Einbauort des Isolierglases entspricht.In order to prevent the pressure on the outer surfaces of the glass panes of the insulating glass unit from being released too early, it is advisable to proceed in the process according to the invention in such a way that the pressure in the gas supply line is measured after the filling process has ended and that the pressure on the outer surfaces is measured the glass panes of the insulating glass unit only lift when the pressure determined in this way corresponds to a preselected value, for example the atmospheric pressure. This process variant also opens up the possibility of building up a preselected pressure in the insulating glass unit in order to prevent the glass panels of the insulating glass unit from being dented or bulged at different manufacturing and installation locations (lower air pressure at higher installation locations or higher air pressure at lower installation locations). This can be done by adjusting the pressure of the gas inside the insulating glass to a preselected value, the preselected value of the pressure corresponding to the mean air pressure at the installation location of the insulating glass.

Eine erfindungsgemäß bevorzugte Vorrichtung zur Durchfüh­rung des Verfahrens ist dadurch gekennzeichnet, daß zwei Druckplatten vorgesehen sind, die während des Füllvorgan­ges mit vorwählbarem Druck gegen die Außenflächen der Glasscheiben der Isolierglaseinheit anlegbar sind. Bei Verwendung der erfindungsgemäßen Vorrichtung wird die Isolierglaseinheit zwischen die beiden Druckplatten ge­bracht, wozu bevorzugt vorgesehen ist, daß am unteren En­de der an die Außenflächen der Glasscheiben anlegbaren Druckplatten eine Fördervorrichtung, z.B. Transportrollen oder ein endloses Förderband für die Isolierglaseinheit, vorgesehen ist und daraufhin werden die beiden Druckplat­ten von außen gegen die Glasscheiben der Isolierglasein­heit angelegt. Die beiden Druckplatten können die Platten einer Presse zum Verpressen von Isolierglas sein. Dies ist aber nur eine bevorzugte Variante, da es an sich ge­nügt, wenn zwei Druckplatten vorgesehen sind, welche sich gegen die Außenflächen der beiden Glasscheiben der Iso­lierglaseinheit anlegen und mit entsprechendem Druck ge­gen die Glasscheiben gedrückt werden.A preferred device according to the invention for carrying out the method is characterized in that two pressure plates are provided which can be placed against the outer surfaces of the glass panes of the insulating glass unit with preselectable pressure during the filling process. When using the device according to the invention, the insulating glass unit is brought between the two pressure plates, for which purpose it is preferably provided that a conveyor device, for example a conveyor device, is provided at the lower end of the pressure plates that can be placed on the outer surfaces of the glass panes. Transport rollers or an endless conveyor belt for the insulating glass unit is provided, and then the two pressure plates are placed from the outside against the glass panes of the insulating glass unit. The two pressure plates can be the plates of a press for pressing insulating glass. However, this is only a preferred variant, since it is sufficient in itself if two pressure plates are provided which lie against the outer surfaces of the two glass panes of the insulating glass unit and are pressed against the glass panes with corresponding pressure.

Wenn bei der erfindungsgemäßen Vorrichtung die Einrich­tung zum Zuführen des Füllgases und die Absaugeinrichtung jeweils Sonden aufweisen, die in im Abstandhalterrahmen vorgesehene Öffnungen (Bohrungen) einführbar sind, dann empfiehlt es sich, wenn den Sonden Einrichtungen zugeord­net sind, welche die Sonden jeweils genau auf die Mitte zwischen den Glastafeln der Isolierglaseinheit hin aus­richten. Die Höhenausrichtung der Sonden ist durch die Lage der Öffnung, die durch eine Bohrvorrichtung, Stanze od.dgl. erzeugt worden ist, vorgegeben und braucht für gewöhnlich nicht gesondert abgetastet zu werden.If, in the device according to the invention, the device for supplying the filling gas and the suction device each have probes that can be inserted into openings (bores) provided in the spacer frame, then it is advisable to assign devices to the probes that each precisely center the probes Align between the glass panels of the insulating glass unit. The height orientation of the probes is due to the position of the opening, or the like through a drilling device, punch. generated, specified and usually does not need to be scanned separately.

Wenn man keine Sonden verwenden möchte, dann kann erfin­dungsgemäß vorgesehen werden, daß die Einrichtung zum Zu­führen von Füllgas an ihrem Ende einen Block aufweist, der an die Schmalseite der Isolierglaseinheit im Bereich der Öffnung im Abstandhalter anlegbar ist, daß der Block auf seiner, der Isolierglaseinheit zugekehrten Fläche ei­ne Auflage aus elastischem Werkstoff aufweist, und daß sich die Auflage beim Anlegen des Blockes dichtend an die Stirnkanten der Glasscheiben und an die Außenfläche des Abstandhalters zwischen den Glasscheiben anlegt. Zusätz­lich oder alternativ ist es möglich vorzusehen, daß die Einrichtung an ihrem Ende einen Block aufweist, der an die Schmalseite der Isolierglaseinheit im Bereich der Öffnung im Abstandhalter anlegbar ist, daß der Block auf seiner, der Isolierglaseinheit zugekehrten Fläche eine Auflage aus elastischem Werkstoff aufweist, und daß sich die Auflage beim Anlegen des Blockes dichtend an die Stirnkanten der Glasscheiben und an die Außenfläche des Abstandhalters zwischen den Glasscheiben anlegt. Derartig ausgerüstete Einrichtungen zum Zuführen des Füllgases und zum Abführen von Luft und/oder Gas wird man bevorzugt dann verwenden, wenn die Öffnungen zum Zuführen bzw. Ab­führen im Bereich vertikaler Kanten oder einer vertikalen Kante der Isolierglaseinheit vorgesehen sind.If you do not want to use probes, then it can be provided according to the invention that the device for supplying filling gas has at its end a block which can be placed on the narrow side of the insulating glass unit in the region of the opening in the spacer, that the block on its surface facing the insulating glass unit has a support made of elastic material, and that the support, when the block is put on, seals against the end edges of the glass panes and against the outer surface of the spacer between the glass panes. Additionally or alternatively, it is possible to provide that the device has at its end a block that can be placed on the narrow side of the insulating glass unit in the area of the opening in the spacer, that the block has a support made of elastic material on its surface facing the insulating glass unit, and that when the block is applied, the support seals against the end edges of the glass panes and against the outer surface of the spacer between the glass panes. Devices equipped in this way for supplying the filling gas and for discharging air and / or gas will preferably be used when the openings for supplying or discharging are provided in the region of vertical edges or a vertical edge of the insulating glass unit.

In einer Ausführungsform der erfindungsgemäßen Vorrich­tung kann vorgesehen sein, daß das freie an die Isolier­glaseinheit anlegbare Ende der Einrichtung höhenverstell­bar und horizontal verstellbar von einem über den Druck­platten geführten Schlitten getragen ist. Die so gehal­terte Absaugeinrichtung bzw. der an ihr vorgesehene Block bzw. insbesondere die an ihr vorgesehene Sonde wird von oben herangeführt und dann seitlich in die Öffnung im Ab­standhalter eingeschoben bzw. angelegt.In one embodiment of the device according to the invention it can be provided that the free end of the device which can be placed on the insulating glass unit is supported in a height-adjustable and horizontally adjustable manner by a slide guided over the pressure plates. The suction device held in this way or the block provided on it, or in particular the probe provided on it, is brought up from above and then inserted or placed laterally into the opening in the spacer.

Gemäß einem weiteren Vorschlag der Erfindung ist vorgese­hen, daß in der Leitung zum Zuführen des Füllgases ein Druckmeßgerät vorgesehen ist. Der Drucksensor in der Zu­führleitung für das Füllgas erfaßt den im Innenraum der Isolierglaseinheit herrschenden Druck und steuert die Vorrichtung so, daß die Presse erst dann geöffnet wird bzw. der Druck auf die Außenflächen der Glasscheiben der Isolierglaseinheit erst dann aufgehoben wird, wenn vom Druckmeßgerät ein Signal abgegeben wird, daß der Gasdruck im Inneren der Isolierglaseinheit z.B. dem atmosphäri­schen Druck (oder einem vorgewähltem) entspricht. Nach Erreichen des gewünschten Druckes wird die Öffnung im Ab­standhalterrahmen durch Einspritzen einer erhärtenden Masse verschlossen, z.B. mit Hilfe eines Pfropfens aus Butylkautschuk. Der entsprechende gewünschte Druck im In­neren der Isolierglaseinheit kann dadurch erreicht wer­den, daß nach dem Abschalten der Gaszufuhr die Absaugein­richtung (Vakuumpumpe) noch weiterläuft, bis das Druck­meßgerät den richtigen Druck (z.B. = atmosphärischer Druck) oder einen anderen entsprechend vorgegebenen Druck anzeigt. Diese Arbeitsweise gestattet es auch, den Druck im Inneren der Isolierglasscheibe auf den am Einbauort in Abhängigkeit von der Seehöhe des Einbauortes normalerwei­se herrschenden atmosphärischen Druck einzustellen.According to a further proposal of the invention it is provided that a pressure measuring device is provided in the line for supplying the filling gas. The pressure sensor in the feed line for the filling gas detects the pressure prevailing in the interior of the insulating glass unit and controls the device in such a way that the press is only opened or the pressure on the outer surfaces of the glass panes of the insulating glass unit is only released when the Pressure measuring device a signal is given that the gas pressure inside the insulating glass unit corresponds for example to the atmospheric pressure (or a preselected). After the desired pressure has been reached, the opening in the spacer frame is closed by injecting a hardening mass, for example with the aid of a plug made of butyl rubber. The corresponding desired pressure inside the insulating glass unit can be achieved in that after the gas supply has been switched off, the suction device (vacuum pump) continues to run until the pressure measuring device indicates the correct pressure (for example = atmospheric pressure) or another correspondingly predetermined pressure. This mode of operation also makes it possible to adjust the pressure inside the insulating glass pane to the atmospheric pressure normally prevailing at the installation site depending on the altitude of the installation site.

Um die Taktzeiten zu verkürzen, kann das Verschließen der Öffnungen im Abstandhalter auch in einer weiteren Station erfolgen.In order to shorten the cycle times, the openings in the spacer can also be closed in another station.

Die erfindungsgemäße Arbeitsweise und die erfindungsgemä­ße Vorrichtung erlauben es auch, die für Schallschutz­zwecke angestrebte, nur teilweise Füllung der Isolier­glaseinheit mit Füllgas (z.B.Schwefelhexafluorid) auszu­führen. Dies war bislang mit einem gewöhnlichen Sauer­stoffsensor in der Absaugleitung nicht erreichbar. Bei der Erfindung genügt es einfach, die vorgegebene Menge an Füllgas, bezogen auf das Volumen des Innenraums der Iso­lierglaseinheit (d.h. den gewünschten Bruchteil des In­nanraumvolumens), einzublasen.The method of operation and the device according to the invention also make it possible to fill the insulating glass unit with filling gas (e.g. sulfur hexafluoride), which is only partially intended for soundproofing purposes. Until now, this was not possible with an ordinary oxygen sensor in the suction line. In the invention, it is simply sufficient to blow in the predetermined amount of filling gas, based on the volume of the interior of the insulating glass unit (i.e. the desired fraction of the interior volume).

Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus der nachstehenden Beschreibung, in der auf die schematischen Zeichnungen Bezug genommen wird. Es zeigt:

  • Figur 1 eine erste Ausführungsform einer erfindungsgemä­ßen Vorrichtung zum Füllen von Isolierglaseinheiten mit Füllgas,
  • Figur 2 einen Schnitt längs der Linie II-II in Figur 1,
  • Figur 3 eine andere Ausführungsform einer erfindungsgemä­ßen Vorrichtung in Teilansicht,
  • Figur 4 einen Teil einer Vorrichtung zum Zuführen von Füllgas bzw. zum Absaugen und
  • Figur 5 die Vorrichtung aus Figur 4 nach dem Ansetzen an den Seitenrand einer Isolierglaseinheit längs des Schnit­tes V-V in Figur 3.
Further details and features of the invention will become apparent from the following description, in which reference is made to the schematic drawings. It shows:
  • Figure 1 shows a first embodiment of a device according to the invention for filling insulating glass units with Filling gas,
  • FIG. 2 shows a section along the line II-II in FIG. 1,
  • FIG. 3 shows another embodiment of a device according to the invention in partial view,
  • Figure 4 shows part of a device for supplying filling gas or for suction and
  • 5 shows the device from FIG. 4 after attachment to the side edge of an insulating glass unit along the section VV in FIG. 3.

Eine in den Figuren 1 und 2 gezeigte Vorrichtung zum Fül­len einer Isolierglaseinheit mit einem Füllgas umfaßt zwei Platten 1 und 2, die aufeinander zu bewegt werden können. Beispielsweise sind diese Platten 1 und 2 die Druckplatten einer Plattenpresse zum Verpressen von Iso­lierglas, wie sie aus der DE-A 31 30 645 bekannt ist. Un­terhalb des unteren Randes der Platten 1, 2 ist ein Auf­stellförderer 3, der im gezeigten Ausführungsbeispiel aus mehreren Rollen gebildet ist, vorgesehen. Der Aufstell­förderer 3 dient als Fördervorrichtung zum Zuführen von Isolierglaseinheiten 4 in den Zwischenraum zwischen den beiden Druckplatten 1 und 2.A device shown in FIGS. 1 and 2 for filling an insulating glass unit with a filling gas comprises two plates 1 and 2 which can be moved towards one another. For example, these plates 1 and 2 are the pressure plates of a plate press for pressing insulating glass, as is known from DE-A 31 30 645. Below the lower edge of the plates 1, 2, a stand-up conveyor 3 is provided, which in the exemplary embodiment shown is formed from a plurality of rollers. The stand-up conveyor 3 serves as a conveyor device for feeding insulating glass units 4 into the space between the two pressure plates 1 and 2.

Den Druckplatten 1 und 2 ist eine Einrichtung 5 zum Zu­führen von Füllgas und eine Einrichtung 6 zum Abführen von Luft und/oder Gas zugeordnet. Die Einrichtung 5 ist an eine Füllgasquelle angeschlossen. Die Einrichtung 6 kann an die Saugseite einer Vakuumpumpe angeschlossen sein.The pressure plates 1 and 2 are assigned a device 5 for supplying filling gas and a device 6 for discharging air and / or gas. The device 5 is connected to a filling gas source. The device 6 can be connected to the suction side of a vacuum pump.

Die Einrichtung 5 ist über nicht näher gezeigte Mittel beweglich gehaltert und kann auf die zwischen den Platten 1 und 2 stehende Isolierglasscheibe 4 zu vorbewegt wer­den, so daß sich ihre Sonde 7 durch eine in einem Ab­ standhalter 8 vorgesehene Öffnung 9 erstreckt, wie dies in Figur 1 gezeigt ist. Zur seitlichen Ausrichtung der Einrichtung 5 zum Zuführen von Füllgas in die Isolier­glaseinheit 4 ist mit der Einrichtung 5 ein Fühler 10 verbunden, der mit einem Ansatz 11 in der Ausgangslage an der Stirnkante einer der beiden Glasscheiben 12 und 13 (im in Figur 2 gezeigten Ausführungsbeispiel der Glas­scheibe 12) der Isolierglaseinheit 4 anliegt. Nun wird der Fühler 10 auf die andere Glasscheibe zu 13, d.h. quer zur Flächenerstreckung der Isolierglaseinheit 4 bewegt, wobei sich der Ansatz 11 in die zwischen den Rändern der Glasscheiben 12 und 13 und dem Abstandhalter 8 gebildete Nut hinein bewegt, bis er schließlich an der Innenseite der Glasscheibe 13 aufläuft. Der Hub zwischen dem Ein­dringen in die Randnut und dem Auflaufen des Fingers 11 an der Glasscheibe 13 entspricht der Dicke des Innenrau­mes 14, so daß rechnerisch die Mitte des Abstandes zwi­schen den beiden Innenflächen der Glasscheiben 12 und 13 ermittelt werden kann. Auf diese Weise ist die Sonde 7 in Seitenrichtung gegenüber der Öffnung 9 zentrisch aus­richtbar. Die Höhenausrichtung braucht nicht gesondert erfolgen, da die Höhe des die Öffnung erzeugenden Werk­zeuges (Bohrer oder Stanze) bezüglich des unteren hori­zontalen Randes der Isolierglaseinheit 4 ohnedies vor­gegeben ist.The device 5 is movably supported by means not shown in detail and can be moved forward to the insulating glass pane 4 between the plates 1 and 2, so that its probe 7 can be moved through an ab Standhalter 8 provided opening 9 extends, as shown in Figure 1. For the lateral alignment of the device 5 for supplying filling gas into the insulating glass unit 4, a sensor 10 is connected to the device 5, which is connected to a shoulder 11 in the starting position on the front edge of one of the two glass panes 12 and 13 (in the exemplary embodiment shown in FIG Glass pane 12) of the insulating glass unit 4 is present. Now the sensor 10 is moved to the other glass pane 13, that is to say transversely to the surface extension of the insulating glass unit 4, the projection 11 moving into the groove formed between the edges of the glass panes 12 and 13 and the spacer 8 until it finally touches the Inside the glass pane 13 runs up. The stroke between the penetration into the edge groove and the emergence of the finger 11 on the glass pane 13 corresponds to the thickness of the interior 14, so that the center of the distance between the two inner surfaces of the glass panes 12 and 13 can be calculated. In this way, the probe 7 can be aligned centrally in the lateral direction with respect to the opening 9. The height alignment does not have to take place separately, since the height of the tool producing the opening (drill or punch) is predetermined in any case with respect to the lower horizontal edge of the insulating glass unit 4.

Eine ähnliche Seitenausrichtung ist für die Sonde 15 der Einrichtung 6 vorgesehen. Die Einrichtung 6 umfaßt einen Schlitten 16, der auf einer Schiene 17, die oberhalb der Platten 1, 2 angeordnet ist, verfahrbar ist. Die Sonde 15 ist an einem zwischen die Platten 1 und 2 ragenden Arm 18 der Vorrichtung 6 auf- und abverschiebbar gehaltert. Zur Bewegung der Vorrichtung 6 und der Sonde 15 sind nicht näher gezeigte Antriebe, z.B. Ketten oder Seilantriebe oder auch Druckmittelmotore, vorgesehen.A similar side orientation is provided for the probe 15 of the device 6. The device 6 comprises a carriage 16 which can be moved on a rail 17 which is arranged above the plates 1, 2. The probe 15 is held on an arm 18 of the device 6 which projects between the plates 1 and 2 and can be moved up and down. For the movement of the device 6 and the probe 15 are drives not shown, e.g. Chains or cable drives or also pressure medium motors are provided.

Bei der in den Figuren 3 bis 5 gezeigten Ausführungsform sind wieder die beiden Druckplatten 1 und 2 und der Auf­ stellförderer 3 für eine Isolierglaseinheit 4 vorgesehen. An Stelle der Sonden 7 bzw. 15 besitzen die Einrichtung 5 bzw. die Einrichtung 6 an ihren mit der Isolierglasein­heit 4 in Eingriff bringbaren Teilen Blöcke 20, die auf ihrer den Isolierglaseinheiten zuzukehrenden seiten Auf­lagen 21 aus elastisch nachgiebigem Werkstoff, z.B. Schaumwerkstoff, aufweisen. Sowohl der Block 20 als auch die Auflage 21 werden von einer mit dem Innenraum der Zu­führleitung 22 koaxialen Bohrung 23 durchsetzt, die bei an die Isolierglaseinheit 4 angelegtem Block 20 mit der Öffnung 9 im Abstandhalter 8 der Isolierglaseinheit 4 fluchtet. Beim Anlegen des Blockes 20 an die Stirnkante einer Isolierglaseinheit 4 wird die Auflage 21 des Blok­kes 20 verformt und legt sich dichtend an die Stirnränder der Glasscheiben 12 und 13 sowie die Außenfläche des Ab­standhalters 8 an, so daß auch ohne Sonde 7 bzw. 15 ein dichter Anschluß der Einrichtung 5 bzw. der Vorrichtung 6 an den Innenraum 14 der Isolierglaseinheit 4 erreicht wird.In the embodiment shown in FIGS. 3 to 5, the two pressure plates 1 and 2 and the up are again adjusting conveyor 3 is provided for an insulating glass unit 4. Instead of the probes 7 and 15, the device 5 and the device 6 have on their parts which can be brought into engagement with the insulating glass unit 4, blocks 20, which have on their side facing the insulating glass units supports 21 made of elastically flexible material, for example foam material. Both the block 20 and the support 21 are penetrated by a bore 23 which is coaxial with the interior of the feed line 22 and which is aligned with the opening 9 in the spacer 8 of the insulating glass unit 4 when the block 20 is placed on the insulating glass unit 4. When the block 20 is placed on the front edge of an insulating glass unit 4, the support 21 of the block 20 is deformed and lies in a sealing manner on the front edges of the glass panes 12 and 13 and on the outer surface of the spacer 8, so that even without a probe 7 or 15 a tight one Connection of the device 5 or the device 6 to the interior 14 of the insulating glass unit 4 is reached.

In Figur 5 ist die Ausrichtung der Isolierglaseinheit 4 gegenüber den Preßplatten 1 und 2 gegenüber der Darstel­lung von Figur 3 abgeändert. Bevorzugt ist die Ausrich­tung gemäß Figur 3, wo die Isolierglaseinheit 4 etwas über den lotrechten Seitenrand 24 der Platten 1 und 2 vorsteht. Es kann dann der Block 20 breiter ausgebildet werden und es ist anders als bei der Ausführungsform nach Figur 5 möglich, mit einem einheitlichen Block 20 das Füllen bzw. Absaugen bei Isolierglaseinheiten mit ver­schiedenen Dicken auszuführen. Aus Figur 1 ist noch er­sichtlich, daß der Einrichtung zum Zuführen von Füllgas in die Isolierglaseinheit 4 ein Druckmeßgerät 25 und ein Durchflußmengenmeßgerät 26 zugeordnet ist. Wenngleich dies bei der Ausführungsform nach Figur 3 nicht gezeigt ist, sind die erwähnten Meßgeräte auch bei dieser Ausfüh­rungsform vorgesehen. Das Durchflußmengenmeßgerät mißt entweder die Gesamtmenge an durch die Einrichtung 5 zuge­führtem Füllgas oder aber die je Zeiteinheit über die Fülleinrichtung 5 zugeführte Menge an Füllgas.In FIG. 5, the orientation of the insulating glass unit 4 with respect to the pressure plates 1 and 2 has been modified from the illustration in FIG. The orientation according to FIG. 3 is preferred, where the insulating glass unit 4 protrudes somewhat beyond the vertical side edge 24 of the plates 1 and 2. The block 20 can then be made wider and, unlike in the embodiment according to FIG. 5, it is possible to use a uniform block 20 to carry out the filling or suctioning in insulating glass units with different thicknesses. It can also be seen from FIG. 1 that a pressure measuring device 25 and a flow rate measuring device 26 are associated with the device for supplying filling gas into the insulating glass unit 4. Although this is not shown in the embodiment according to FIG. 3, the measuring devices mentioned are also provided in this embodiment. The flow rate measuring device either measures the total amount of filling gas supplied by the device 5 or that per unit of time over the Filling device 5 supplied amount of filling gas.

Bei Verwendung der erfindungsgemäßen Vorrichtung kann das Füllvolumen, d.h. das Volumen des Innenraums 14 der zu füllenden Isolierglaseinheit 4, berechnet werden (auf Grund der Breite und Höhe der Isolierglaseinheit 4 in Verbindung mit dem Abstand der beiden Glasscheiben 12 und 13, der vorher vom Fühler 10 ermittelt worden ist). Auf Grund des ermittelten Volumens wird die benötigte Füll­gasmenge bestimmt. Es kann dann so vorgegangen werden, daß auf Grund des von der Durchflußmengenmeßeinrichtung gemessenen Strömungsmenge an Füllgas je Zeiteinheit nach einer vorgegebenen Zeitspanne das Füllen abgebrochen wird, wobei die vorgegebene Zeitspanne dem Volumen an Füllgas, das zugeführt werden soll, bezogen auf die Strö­mungsgeschwindigkeit, entspricht. Das zuzuführende Volu­men an Füllgas entspricht in der Regel 110 - 120% des Vo­lumens des Innenraumes 14 der Isolierglaseinheit 4.When using the device according to the invention, the filling volume, i.e. the volume of the interior 14 of the insulating glass unit 4 to be filled can be calculated (based on the width and height of the insulating glass unit 4 in conjunction with the distance between the two glass panes 12 and 13, which was previously determined by the sensor 10). The required fill gas quantity is determined on the basis of the volume determined. It can then be carried out in such a way that, based on the flow quantity of filling gas measured by the flow measuring device per unit of time, the filling is terminated after a predetermined period of time, the predetermined period of time corresponding to the volume of filling gas that is to be supplied, based on the flow rate. The volume of filling gas to be supplied generally corresponds to 110-120% of the volume of the interior 14 of the insulating glass unit 4.

Um einen Überdruck oder einen Unterdruck in der Scheibe zu verhindern, der sich nach dem Öffnen der Druckplatten 1, 2 nachteilig auswirken würde, ist in der Einrichtung 5 ein Druckmeßgerät 25 vorgesehen. Dieses Druckmeßgerät 25 gestattet die Öffnung der Druckplatten 1, 2 erst, nachdem ein vorgegebener Druck im Inneren 14 der Isolierglasein­heit 4 erreicht worden ist. Dieser Druck kann dem atmos­phärischen Druck am Herstellungsort entsprechen oder von diesem nach oben oder nach unten abweichen. Das Erzielen des gewünschten Druckes im Innenraum 14 der Isolierglas­einheit 4 kann dadurch beschleunigt werden, daß nach dem Unterbrechen der Zufuhr von Füllgas über die Einrichtung 5 weiter über die Vorrichtung 6 Gas aus dem Innenraum 14 abgesaugt wird.In order to prevent overpressure or underpressure in the pane, which would have a disadvantageous effect after opening the pressure plates 1, 2, a pressure measuring device 25 is provided in the device 5. This pressure measuring device 25 permits the opening of the pressure plates 1, 2 only after a predetermined pressure in the interior 14 of the insulating glass unit 4 has been reached. This pressure can correspond to the atmospheric pressure at the place of manufacture or deviate upwards or downwards from this. The achievement of the desired pressure in the interior 14 of the insulating glass unit 4 can be accelerated in that after the supply of filling gas has been interrupted, the device 5 further sucks gas out of the interior 14 via the device 6.

Nachdem im Innenraum 14 der Isolierglaseinheit 4 der ge­wünschte Druck, der auch vom Umgebungsluftdruck abweichen kann, hergestellt oder erreicht worden ist, werden die Öffnungen im Abstandhalter 8 durch Einspritzen einer här­ tenden Masse, beispielsweise mit Hilfe eines Pfropfens aus Butylkautschuk, verschlossen. Das Verschließen der Öffnungen im Abstandhalter kann zur Verkürzung der Takt­zeit auch in einer weiteren Station erfolgen.After the desired pressure, which can also deviate from the ambient air pressure, has been produced or reached in the interior 14 of the insulating glass unit 4, the openings in the spacer 8 become hard by injection tendency, for example with the aid of a plug made of butyl rubber, closed. The openings in the spacer can also be closed in another station to shorten the cycle time.

Der in Figur 3 gezeigte Überstand der Isolierglaseinheit 4 über die Kante 24 der Platten 1, 2 beträgt in der Pra­xis etwa 2 -3 mm.The protrusion of the insulating glass unit 4 shown in FIG. 3 over the edge 24 of the plates 1, 2 is in practice about 2-3 mm.

Der Druck, der auf die Außenflächen der Glasscheiben 12 und 13 der Isolierglaseinheit 4 ausgeübt wird, kann klei­ner oder größer sein oder gleich groß sein wie der im In­nenraum 14 während des Füllvorganges aufgebaute Druck. Vorzugsweise ist der von den Glasscheiben 1 und 2 aufge­brachte Druck wenigstens gleich dem Druck im Innenraum 14 der Isolierglaseinheit 4, damit die Klebeverbindung zwi­schen dem Abstandhalter 8 und den Glasscheiben 12 und 13 der Isolierglaseinheit 4 nicht belastet wird. Ein größe­rer Druck wird aufgebracht werden, wenn gleichzeitig mit dem Füllen der Isolierglaseinheit 4 mit Füllgas ein Plan­pressen der Isolierglaseinheit 4 ausgeführt wird.The pressure which is exerted on the outer surfaces of the glass panes 12 and 13 of the insulating glass unit 4 can be less or greater or the same as the pressure built up in the interior 14 during the filling process. The pressure exerted by the glass panes 1 and 2 is preferably at least equal to the pressure in the interior 14 of the insulating glass unit 4, so that the adhesive connection between the spacer 8 and the glass panes 12 and 13 of the insulating glass unit 4 is not stressed. A greater pressure will be applied if a simultaneous pressing of the insulating glass unit 4 is carried out with the filling of the insulating glass unit 4 with filling gas.

Claims (18)

1. Verfahren zum Füllen einer Isolierglaseinheit (4) mit einen Füllgas, wobei das Füllgas über mindestens eine Einlaßöffnung in den Innenraum (14) der Isolierglas­einheit (4) eingeführt und über wenigstens eine wei­tere Öffnung (9) Luft bzw. Luft-Gas-Gemisch aus dem Innenraum (14) der Isolierglaseinheit (4) abgeführt, insbesondere abgesaugt wird, dadurch gekennzeichnet, daß man während des Füllvorganges auf die Außenflä­chen der Glasscheiben (13, 14) der zu füllenden Iso­lierglaseinheit (4) einen Druck ausübt, der vorzugs­weise wenigstens gleich groß ist wie der Druck im In­nenraum (14) der Isolierglaseinheit (4) während des Füllvorganges.1. A method for filling an insulating glass unit (4) with a filling gas, the filling gas being introduced into the interior (14) of the insulating glass unit (4) via at least one inlet opening and air or air-gas mixture via at least one further opening (9) is removed from the interior (14) of the insulating glass unit (4), in particular suctioned off, characterized in that a pressure is exerted on the outer surfaces of the glass panes (13, 14) of the insulating glass unit (4) to be filled during the filling process, which pressure is preferably at least equal is as large as the pressure in the interior (14) of the insulating glass unit (4) during the filling process. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man den Druck auf die Glasscheiben (12, 13) wäh­rend des Füllvorganges durch Anlegen von plattenför­migen Druckelementen (1, 2) aufbringt.2. The method according to claim 1, characterized in that the pressure on the glass panes (12, 13) is applied during the filling process by applying plate-shaped pressure elements (1, 2). 3. Verfahren nach Anspruch 1 oder 2, dadurch gekenn­zeichnet, daß man das Volumen des Innenraumes (14) der mit dem Füllgas zu füllenden Isolierglaseinheit (4) ermittelt, daß man die zugeführte Füllgasmenge erfaßt, und daß man den Füllvorgang abbricht, wenn die erfaßte Füllgasmenge gleich der in den Innenraum einzufüllenden Menge an Füllgas ist.3. The method according to claim 1 or 2, characterized in that one determines the volume of the interior (14) of the insulating glass unit to be filled with the filling gas (4), that one detects the amount of filling gas supplied, and that one stops the filling process when the detected Filling gas amount is equal to the amount of filling gas to be filled into the interior. 4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß man die Menge des je Zeiteinheit zugeführten Füllgases ermittelt und daß man den Füllvorgang ab­bricht, wenn das Produkt aus Füllgasmenge je Zeitein­heit und Dauer des Füllvorganges dem dem Innenraum (14) der Isolierglaseinheit (4) zuzuführenden Volumen entspricht.4. The method according to claim 3, characterized in that the amount of filling gas supplied per unit of time is determined and that the filling process is terminated when the product of the filling gas quantity per unit of time and duration of the filling process is to be supplied to the interior (14) of the insulating glass unit (4) Volume corresponds. 5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß man nach Beendigung des Füllvor­ganges den Druck in der Gaszuführleitung mißt, und daß man den Druck auf die Außenflächen der Glasschei­ben (12, 13) der Isolierglaseinheit (4) erst aufhebt, wenn der so ermittelte Druck einem vorgewählten Wert, z.B. dem atmosphärischen Druck, entspricht.5. The method according to any one of claims 1 to 4, characterized characterized in that after the filling process the pressure in the gas supply line is measured and that the pressure on the outer surfaces of the glass panes (12, 13) of the insulating glass unit (4) is only released when the pressure determined in this way has a preselected value, for example the atmospheric one Pressure, corresponds. 6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß man den Druck des Gases im Inne­ren des Isolierglases auf einen vorgewählten Wert einstellt, wobei der vorgewählte Wert des Druckes dem mittleren Luftdruck am Einbauort des Isolierglases entspricht.6. The method according to any one of claims 1 to 5, characterized in that the pressure of the gas inside the insulating glass is set to a preselected value, the preselected value of the pressure corresponding to the mean air pressure at the installation location of the insulating glass. 7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß man den Druck auf die Außenflächen der Glasschei­ben (12, 13) aufhebt, nachdem der Druck im Innenraum (14) der Isolierglaseinheit (4) einen Wert angenommen hat, der dem durchschnittlichen Luftdruck am Einbau­ort der Isolierglaseinheit (4) entspricht.7. The method according to claim 6, characterized in that one removes the pressure on the outer surfaces of the glass panes (12, 13) after the pressure in the interior (14) of the insulating glass unit (4) has assumed a value which is the average air pressure at the installation site corresponds to the insulating glass unit (4). 8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß man den Füllvorgang mit Gasströ­mungsgeschwindigkeiten von bis zu 200 l/min ausführt.8. The method according to any one of claims 1 to 7, characterized in that one carries out the filling process with gas flow rates of up to 200 l / min. 9. Vorrichtung zur Durchführung des Verfahrens nach ei­nem der Ansprüche 1 bis 8, mit einer Einrichtung (5) zum Zuführen von Füllgas in den Innenraum (14) einer Isolierglaseinheit (4) über wenigstens eine im Ab­standhalterrahmen (8) derselben vorgesehene Öffnung (9) und mit einer Einrichtung (6), über die Luft und/oder Gas aus dem Innenraum (14) der Isolierglas­einheit (4) über wenigstens eine im Abstandhalter­rahnen (8) derselben vorgesehene weitere Öffnung (9) entfernbar ist, dadurch gekennzeichnet, daß zwei Druckplatten (1, 2) vorgesehen sind, die während des Füllvorganges mit vorwählbarem Druck gegen die Außen­flächen der Glasscheiben (12, 13) der Isolierglasein­ heit (4) anlegbar sind.9. Device for carrying out the method according to one of claims 1 to 8, with a device (5) for supplying filling gas into the interior (14) of an insulating glass unit (4) via at least one opening (9) provided in the spacer frame (8) thereof. and with a device (6) via which air and / or gas can be removed from the interior (14) of the insulating glass unit (4) via at least one further opening (9) provided in the spacer frame (8) thereof, characterized in that two pressure plates (1, 2) are provided which, during the filling process, have preselectable pressure against the outer surfaces of the glass panes (12, 13) of the insulating glass unit (4) can be created. 10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Einrichtung (5) zum Zuführen von Füllgas eine durch die Öffnung (9) im Abstandhalterrahmen (8) ein­führbare Sonde (7) aufweist, die mit einer Einrich­tung (10) gekuppelt ist, welche die Sonde (7) jeweils genau auf die Mitte zwischen den Glasscheiben (12, 13) der Isolierglaseinheit (4) ausrichtet.10. The device according to claim 9, characterized in that the device (5) for supplying filling gas through the opening (9) in the spacer frame (8) insertable probe (7) which is coupled to a device (10) which align the probe (7) exactly to the center between the glass panes (12, 13) of the insulating glass unit (4). 11. Vorrichtung nach Anspruch 9 oder 10, dadurch gekenn­zeichnet, daß die Einrichtung (6) zum Abführen von Luft und/oder Gas eine Sonde (15) aufweist, die durch die Öffnung (9) im Abstandhalterrahmen (8) einführbar ist, und wobei die Sonde (15) mit einer Einrichtung gekuppelt ist, welche die Sonde jeweils auf die Mitte zwischen den Glastafeln (12, 13) der Isolierglasein­heit (4) hin ausrichtet.11. The device according to claim 9 or 10, characterized in that the device (6) for discharging air and / or gas has a probe (15) which can be inserted through the opening (9) in the spacer frame (8), and wherein the probe (15) is coupled to a device which aligns the probe towards the center between the glass panels (12, 13) of the insulating glass unit (4). 12. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Einrichtung (5) zum Zuführen von Füllgas an ihrem Ende einen Block (20) aufweist, der an die Schmalseite der Isolierglaseinheit (4) im Bereich der Öffnung (9) im Abstandhalter (8) anlegbar ist, daß der Block (20) auf seiner, der Isolierglaseinheit (4) zugekehrten Fläche eine Auflage (21) aus elastischem Werkstoff aufweist, und daß sich die Auflage (21) beim Anlegen des Blockes (20) dichtend an die Stirn­kanten der Glasscheiben (12, 13) und an die Außenflä­che des Abstandhalters (8) zwischen den Glasscheiben (12, 13) anlegt.12. The apparatus according to claim 9, characterized in that the device (5) for supplying filling gas at its end has a block (20) on the narrow side of the insulating glass unit (4) in the region of the opening (9) in the spacer (8 ) can be applied that the block (20) on its, the insulating glass unit (4) facing surface has a support (21) made of elastic material, and that the support (21) sealingly against the end edges of the block (20) Glass panes (12, 13) and on the outer surface of the spacer (8) between the glass panes (12, 13). 13. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Einrichtung an ihrem Ende einen Block (20) aufweist, der an die Schmalseite der Isolierglasein­heit (4) im Bereich der Öffnung (9) im Abstandhalter (8) anlegbar ist, daß der Block (20) auf seiner, der Isolierglaseinheit (4) zugekehrten Fläche eine Aufla­ ge (21) aus elastischem Werkstoff aufweist, und daß sich die Auflage (21) beim Anlegen des Blockes (20) dichtend an die Stirnkanten der Glasscheiben (12, 13) und an die Außenfläche des Abstandhalters (8) zwi­schen den Glasscheiben (12, 13) anlegt.13. The apparatus according to claim 9, characterized in that the device has at its end a block (20) which can be applied to the narrow side of the insulating glass unit (4) in the region of the opening (9) in the spacer (8) that the block (20) on its, the insulating glass unit (4) facing surface a Aufla GE (21) made of elastic material, and that the support (21) sealingly against the end edges of the glass panes (12, 13) and on the outer surface of the spacer (8) between the glass panes (12, 13). 14. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß die Einrichtung (6) zum Abführen von Luft und/­oder Gas zwei Blöcke (20) aufweist, die an die Schmalseite der Isolierglaseinheit (4) im Bereich von zwei in unterschiedlichen Höhen vorgesehenen Öffnun­gen (9) im Abstandhalter (8) anlegbar sind.14. The apparatus according to claim 13, characterized in that the device (6) for discharging air and / or gas has two blocks (20) on the narrow side of the insulating glass unit (4) in the region of two openings provided at different heights ( 9) can be placed in the spacer (8). 15. Vorrichtung nach einem der Ansprüche 9 bis 13, da­durch gekennzeichnet, daß am unteren Ende der an die Außenflächen der Glasscheiben (12, 13) anlegbaren Druckplatten (1, 2) eine Fördervorrichtung, z.B. Transportrollen (3) oder ein endloses Förderband für die Isolierglaseinheit (4), vorgesehen ist.15. Device according to one of claims 9 to 13, characterized in that at the lower end of the pressure plates (1, 2) which can be placed on the outer surfaces of the glass panes (12, 13), a conveying device, e.g. Transport rollers (3) or an endless conveyor belt for the insulating glass unit (4) is provided. 16. Vorrichtung nach einem der Ansprüche 8 bis 13, da­durch gekennzeichnet, daß das freie an die Isolier­glaseinheit (4) anlegbare Ende der Einrichtung (6) höhenverstellbar und horizontal verstellbar von einem über den Druckplatten (1, 2) geführten Schlitten (16) getragen ist.16. Device according to one of claims 8 to 13, characterized in that the free end of the device (6) which can be placed on the insulating glass unit (4) is adjustable in height and horizontally adjustable by a slide (16) guided over the pressure plates (1, 2) is. 17. Vorrichtung nach einem der Ansprüche 8 bis 14, da­durch gekennzeichnet, daß der Leitung zum Zuführen des Füllgases ein Druckmeßgerät (25) zugeordnet ist.17. Device according to one of claims 8 to 14, characterized in that the line for supplying the filling gas is assigned a pressure measuring device (25). 18. Vorrichtung nach einem der Ansprüche 8 bis 15, da­durch gekennzeichnet, daß in der Leitung zum Zuführen von Füllgas ein Durchflußmengenmeßgerät (26) vorgese­hen ist, das die gesamte durchgetretene Gasmenge und/oder die je Zeiteinheit durchtretende Gasmenge anzeigt bzw. ein entsprechendes Signal abgibt.18. Device according to one of claims 8 to 15, characterized in that a flow rate measuring device (26) is provided in the line for supplying filling gas, which indicates the total amount of gas that has passed and / or the amount of gas passing through per unit of time or emits a corresponding signal .
EP87890273A 1987-01-15 1987-11-26 Method for filling an insulating glass unit with filling gas Expired - Lifetime EP0276647B1 (en)

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AT68/87 1987-01-15
AT0006887A AT393827B (en) 1987-01-15 1987-01-15 METHOD AND DEVICE FOR FILLING AN INSULATING GLASS UNIT WITH FILLING GAS

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EP0276647A2 true EP0276647A2 (en) 1988-08-03
EP0276647A3 EP0276647A3 (en) 1989-07-19
EP0276647B1 EP0276647B1 (en) 1990-09-05

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ES (1) ES2017109B3 (en)

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EP0324333A2 (en) * 1988-01-11 1989-07-19 Peter Lisec Device for filling insulating glass with special gas
EP0324333A3 (en) * 1988-01-11 1991-03-06 Peter Lisec Device for filling insulating glass with special gas
EP0444391A2 (en) * 1990-02-28 1991-09-04 Peter Lisec Method and device for filling the inner space of insulating glass clots with gas
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AT408982B (en) * 1990-02-28 2002-04-25 Lisec Peter METHOD FOR FILLING THE INTERIOR OF INSULATING GLASS PANELS WITH GAS
EP0498787A2 (en) * 1991-02-04 1992-08-12 Peter Lisec Method and device for manufacturing insulating glazing units
EP0498787A3 (en) * 1991-02-04 1992-10-14 Peter Lisec Method and device for manufacturing insulating glazing units
DE4337673A1 (en) * 1992-12-15 1994-06-16 Peter Lisec Method of filling the internal area of glass screens - with gas to improve its sound and heat insulation properties
EP0715053A2 (en) 1994-10-28 1996-06-05 VIANELLO Fortunato - DAVANZO Nadia trading under the trading style FOR.EL. BASE DI VIANELLO & C. S.n.c. Automatic method and device for filling insulating glazing units
US5704405A (en) * 1995-03-21 1998-01-06 Lisec; Peter Process and apparatus for filling insulating glass panes with heavy gas
DE19607721C2 (en) * 1995-03-21 1998-05-07 Peter Lisec Method and device for dosing gas
DE19607721A1 (en) * 1995-03-21 1996-10-02 Peter Lisec Method and device for dosing gas
WO2001036827A3 (en) * 1999-11-16 2001-12-13 Cardinal Ig Co Method of reliably detecting seal failures
WO2012005906A1 (en) * 2010-06-28 2012-01-12 Praxair Technology, Inc. Continuous gas filling process and apparatus for fabrication of insulating glass units
CN103180535A (en) * 2010-06-28 2013-06-26 普莱克斯技术有限公司 Continuous gas filling process and apparatus for fabrication of insulating glass units
US8627856B2 (en) 2010-06-28 2014-01-14 Integrated Automation Systems, Llc Continuous gas filling process and apparatus for fabrication of insulating glass units
KR101441260B1 (en) 2010-06-28 2014-09-17 프랙스에어 테크놀로지, 인코포레이티드 Continuous gas filling process and apparatus for fabrication of insulating glass units
US10358863B2 (en) 2011-12-15 2019-07-23 Saint-Gobain Glass France Process for manufacturing a gas-filled multiple glazing unit
EP3661706A4 (en) * 2017-08-01 2021-05-12 GED Integrated Solutions, Inc. Insulating glass unit fluid exchange assembly and method
US11480010B2 (en) 2017-08-01 2022-10-25 Ged Integrated Solutions, Inc. Insulating glass unit fluid exchange assembly and method

Also Published As

Publication number Publication date
ES2017109B3 (en) 1991-01-01
DE8715749U1 (en) 1988-01-28
JPS63233029A (en) 1988-09-28
DE3764799D1 (en) 1990-10-11
EP0276647A3 (en) 1989-07-19
AT393827B (en) 1991-12-27
EP0276647B1 (en) 1990-09-05
ATA6887A (en) 1991-06-15
US4886095A (en) 1989-12-12

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