DE3821266A1 - Apparatus for attaching a tear-open strip - Google Patents

Apparatus for attaching a tear-open strip

Info

Publication number
DE3821266A1
DE3821266A1 DE3821266A DE3821266A DE3821266A1 DE 3821266 A1 DE3821266 A1 DE 3821266A1 DE 3821266 A DE3821266 A DE 3821266A DE 3821266 A DE3821266 A DE 3821266A DE 3821266 A1 DE3821266 A1 DE 3821266A1
Authority
DE
Germany
Prior art keywords
strip
roller
tear
welding
belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE3821266A
Other languages
German (de)
Inventor
Antonio Gamberini
Silvano Boriani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD SpA
Original Assignee
GD SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GD SpA filed Critical GD SpA
Publication of DE3821266A1 publication Critical patent/DE3821266A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/026—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means in rolls, calenders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/245—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool the heat transfer being achieved contactless, e.g. by radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
    • B29C66/4722—Fixing strips to surfaces other than edge faces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8169—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps the mounting of said pressing elements being laterally movable, e.g. adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83417—Roller, cylinder or drum types said rollers, cylinders or drums being hollow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/87—Auxiliary operations or devices
    • B29C66/874—Safety measures or devices
    • B29C66/8744—Preventing overheating of the parts to be joined, e.g. if the machine stops or slows down
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • B29C66/9192—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams
    • B29C66/91921—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges in explicit relation to another variable, e.g. temperature diagrams in explicit relation to another temperature, e.g. to the softening temperature or softening point, to the thermal degradation temperature or to the ambient temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81465—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/0026—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B50/812—Applying tabs, patches, strips or strings on blanks or webs
    • B31B50/8125—Applying strips or strings, e.g. tear strips or strings
    • B31B50/8126—Applying strips or strings, e.g. tear strips or strings parallel to the direction of movement of the webs or the blanks

Abstract

Apparatus for attaching a tear-open strip to an endless band consisting of wrapping material, the welding of the strip and band taking place during the run of these around a deflecting roller which is heated by means of heating devices and of which the position in relation to the axis of rotation of the roller is adjustable.

Description

Die vorliegende Erfindung bezieht sich auf einen Aufreiß­ streifen für ein endloses Band aus Umhüllungsmaterial.The present invention relates to a tear strips for an endless band of wrapping material.

Insbesondere bezieht sich die vorliegende Erfindung auf eine Maschine zur Umhüllung von Zigarettenpackungen mit einer Folie aus durchsichtigem Material, die mit einem Aufreiß­ streifen versehen ist, welcher es ermöglicht, auf einfache Weise die Umhüllungsfolie einzureißen und dadurch die Öff­ nung der Packung zu erleichtern.In particular, the present invention relates to a Machine for wrapping cigarette packs with one Transparent material film with a tear strip is provided, which makes it possible to easily Way to tear the wrapping film and thereby the opening ease of packing.

Gewöhnlich werden die einzelnen, mit einem Aufreißstreifen versehenen Folien aus durchsichtigem Material durch Auftei­ lung eines Endlosbandes des Umhüllungsmaterials, das bereits mit einem endlosen Aufreißstreifen oder auch mit Abschnitten von Aufreißstreifen versehen ist, in Einzelabschnitte erhal­ ten. Die Anbringung des endlosen oder in Abschnitte geschnit­ tenen Aufreißstreifens am Band in Richtung von dessen Längs­ achse erfolgt im Zuge eines Schweißvorganges, der mit einer ortsfesten Schweißvorrichtung durchgeführt wird, welche das Band aus Umhüllungsmaterial und den Aufreißstreifen gegen ein gemeinsames Gegenelement drückt, das aus einer Umlenkwal­ ze besteht.Usually the individual, with a tear strip provided transparencies from transparent material by dividing development of an endless belt of wrapping material that is already with an endless tear strip or with sections is provided by tear strips, in individual sections The attachment of the endless or cut into sections tear strip on the belt in the direction of its longitudinal axis takes place in the course of a welding process which is carried out with a stationary welding device is carried out, which the Tape made of wrapping material and the tear strips against a common counter element that presses from a guide roller ze exists.

Die genannte Verschweißung kann durch Schmelzen einer heiß­ siegelbaren Substanz, mit welcher das Band aus Umhüllungsma­ terial versehen ist, oder durch Schmelzen einer Wachs- oder Klebstoffschicht, mit welcher vorher der Streifen versehen wurde, erfolgen. The weld mentioned can be hot by melting one sealable substance with which the tape from wrapping material is provided material, or by melting a wax or Adhesive layer with which the strip is provided beforehand was done.  

Bei den bekannten Umhüllungsmaschinen hat man festgestellt, daß während der auf jedes Anhalten der Maschine folgenden Betriebsphasen die Verschweißung des Streifens mit dem Band über längere Zeitperioden nicht korrekt erfolgt, obgleich die Schweißtemperatur ihren normalen Betriebswert erreicht hatte. Dies war auf die erhöhte thermische Trägheit der Um­ lenkwalze zurückzuführen, durch welche den Schweißeinrichtun­ gen Wärme entzogen wird, oder aber auch auf die Tatsache, daß der Aufreißstreifen normalerweise zwischen der Umlenkwal­ ze und dem Umhüllungsband eingeklemmt ist und folglich nicht in direkter Berührung mit der Wärmequelle steht.With the known wrapping machines it has been found that during the following every stopping of the machine Phases of operation the welding of the strip to the tape not done correctly over long periods of time, although the welding temperature reaches its normal operating value would have. This was due to the increased thermal inertia of the Um attributed to the steering roller through which the welding device extracted from heat, or due to the fact that the tear strip is normally between the guide roller ze and the wrapping tape is pinched and consequently not is in direct contact with the heat source.

Aus den vorgenannten Gründen wird zum Zwecke der Verkürzung der Dauer dieser nicht korrekten Betriebsbedingungen die Tem­ peratur der Schweißvorrichtung nach jeder Inbetriebnahme der Maschine auf einen wesentlich höheren Wert als dem normaler­ weise erforderlichen gebracht. Als Folge dieser erhöhten Tem­ peratur (bis 160°C) erleidet das Band aus Umhüllungsmaterial, welches in Berührung mit der Schweißvorrichtung läuft, un­ weigerlich Beschädigungen (Runzlungen oder Verbrennungen). Ziel der vorliegenden Erfindung ist die Schaffung einer Vor­ richtung zum Anbringen des Aufreißstreifens an einem Band aus Umhüllungsmaterial, bei welcher die im Zusammenhang mit dem Stand der Technik genannten Unzulänglichkeiten vermieden werden.For the aforementioned reasons, the purpose of shortening the duration of these incorrect operating conditions the tem temperature of the welding device after each start-up of the Machine to a much higher value than normal brought wise necessary. As a result of this increased tem temperature (up to 160 ° C) the tape suffers from wrapping material, which runs in contact with the welding device, un inevitable damage (wrinkles or burns). The aim of the present invention is to create a pre Direction for attaching the tear strip to a tape from wrapping material, in which the in connection with the shortcomings mentioned in the prior art avoided will.

Die Erfindung schafft eine Vorrichtung für die Anbringung eines Aufreißstreifens an einem endlosen Band aus Umhüllungs­ material, bestehend aus Zuführungseinrichtungen für das Band und den Streifen, einer gemeinsamen Umlenkwalze für das Band und den Streifen, und Schweißeinrichtungen zum Verschweißen des Streifens mit dem Band, während dieselben um die Umlenk­ walze laufen, welche durch Heizeinrichungen zum Heizen der Umlenkwalze gekennzeichnet ist. The invention provides an attachment device a tear strip on an endless band of wrapping material consisting of feed devices for the tape and the strip, a common guide roller for the belt and the strip, and welding equipment for welding of the strip with the tape, while the same around the deflection Roll run, which by heating devices for heating the Deflection roller is marked.  

Die Erfindung wird nun unter Hinweis auf die Zeichnungen näher erläutert, in denen, ohne darauf beschränkt zu sein, einige Ausführungsbeispiele gezeigt sind und dieThe invention will now refer to the Drawings explained in more detail in which, without limitation to be some embodiments shown and the

Fig. 1 in Vorderansicht eine erste Ausführungsform der erfindungsgemäßen Vorrichtung zeigt; die Fig. 1 shows a front view of a first embodiment of the device according to the invention; the

Fig. 2 im Schnitt eine Einzelheit der Fig. 1 veran­ schaulicht; und die FIG. 2 shows a detail of FIG. 1 in section; and the

Fig. 3 und 4 Darstellungen von zwei Varianten der in Fig. 1 gezeigten Vorrichtung sind. FIGS. 3 and 4 are illustrations of two variants of the device shown in FIG. 1.

In Fig. 1 ist mit 1 in ihrer Gesamtheit eine Vorrichtung zur Anbringung eines endlosen Aufreißstreifens 2 an einem endlosen Band aus Umhüllungsmaterial 3 bezeichnet.In Fig. 1, 1 in its entirety denotes a device for attaching an endless tear strip 2 to an endless band of wrapping material 3 .

Die Vorrichtung 1 bildet einen Teil einer Maschine zur Umhül­ lung von Zigarettenpackungen, von der eine Stirnwand 4 ge­ zeigt ist.The device 1 forms part of a machine for wrapping cigarette packs, one end wall 4 of which shows GE.

Mit 5 ist in ihrer Gesamtheit eine Zuführungsgruppe für die Zufuhr des Bandes 3 aus Umhüllungsmaterial und mit 6 in ihrer Gesamtheit eine Zuführungsgruppe für die Zufuhr des endlosen Streifens 2 bezeichnet. 5 in its entirety is a supply group for the supply of the strip 3 of wrapping material and 6 in its entirety a supply group for the supply of the endless strip 2 .

Das Band 3 und der Streifen 2 laufen um eine gemeinsame Um­ lenkwalze 7, die auf einer in der Stirnwand 4 gelagerten ho­ rizontalen Welle 8 gelagert ist.The tape 3 and the strip 2 run around a common order steering roller 7 , which is mounted on a mounted in the end wall 4 ho horizontal shaft 8 .

Der zylindrischen Oberfläche der Walze 7 liegt entlang des Weges des Streifens 2 und des Bandes 3 ein fixer Blockteil 9 gegenüber, welcher ein Schweißelement für den Streifen 2 und das Band 3 bildet.The cylindrical surface of the roller 7 is opposite a fixed block part 9 along the path of the strip 2 and the strip 3 , which block part forms a welding element for the strip 2 and the strip 3 .

Hinter der Walze 7 ist ein Messer 10 für die Durchtrennung des mit dem Streifen 2 versehenen Bandes 3 in Abschnitte 11 vorgesehen, welche mittels Führungs- und Transporteinrichtun­ gen 12 einer nicht dargestellten Umhüllungsgruppe zugeführt werden.Behind the roller 7 a knife is provided in sections 11 10 for the cutting through of the strip provided with the strips 2 3 which are fed by means of guiding and Transporteinrichtun gen 12 an enclosure group, not shown.

Die Umhüllungswalze 7 ist hohl und enthält im Bereich der Laufzone des Streifens 2 ein dazu koaxiales zylindrisches Element 13, das Heizeinrichtungen 14 aufweist, die aus einem elektrischen Ringwidersand 14 bestehen.The wrapper roll 7 is hollow and contains in the region of the running zone of the strip 2 to a coaxial cylindrical element 13 which comprises heating means 14, which consist of an electric counter-ring sand fourteenth

Das zylindrische Element 13 ist über horizontale Säulen 15 aus einem schlecht wärmeleitendem Material mit einem Flansch 16 verbunden, der verstellbar auf einer zur Welle 8 koaxia­ len Muffe 17 montiert ist.The cylindrical element 13 is connected via horizontal columns 15 made of a poorly heat-conducting material with a flange 16 which is adjustably mounted on a sleeve 17 coaxial to the shaft 8 .

In der Praxis konnte festgestellt werden, daß, wenn auch im Verlaufe der Betriebsunterbrechungen der Umhüllungsmaschine die Umlenkwalze 7 auf einer bestimmten Temperatur (etwa 40°C) über der Raumtemperatur, jedoch weit entfernt von der Tempe­ ratur, bei welcher irgendwelche Beschädigungen des Bandes 3 auftreten könnten, gehalten wird, bei Wiederaufnahme des Be­ triebes ein schädlicher Entzug der Wärme aus den Schweißein­ richtungen vermieden und somit eine einwandfreie Schweißung nach jeder Anhaltephase gewährleistet werden kann.In practice it was found that, although in the course of the interruptions in operation of the wrapping machine, the deflection roller 7 at a certain temperature (about 40 ° C) above room temperature, but far from the temperature, at which any damage to the belt 3 occurs could be held, when operation resumed, harmful removal of the heat from the welding devices was avoided, and thus a perfect weld can be guaranteed after each stopping phase.

Die Heizung der Umlenkwalze 7 gestattet überdies eine Senkung der Temperatur der Schweißeinrichtungen 9 auf einen solchen Wert, bei dem Beschädigungen des Bandes 3 des Umhüllungsma­ terials, wie sie im Zusammenhang mit dem Stand der Technik erwähnt wurden, vermieden werden. The heating of the deflection roller 7 also allows a lowering of the temperature of the welding devices 9 to such a value that damage to the belt 3 of the material Umhüllungsma, as mentioned in connection with the prior art, are avoided.

In dem besonderen Fall, in welchem die Anbringung eines end­ losen Aufreißstreifens 2 auf das Band 3 des Umhüllungsmate­ rials durch Schmelzen einer Wachsschicht, mit welcher vorher der Streifen 2 beschichtet wurde, erfolgt, reicht die geheiz­ te Umlenkwalze aus, um die Verschweißung herbeizuführen.In the special case in which the application of an endless tear strip 2 to the band 3 of the wrapping material is carried out by melting a wax layer with which the strip 2 was coated beforehand, the heated deflection roller is sufficient to bring about the welding.

Demzufolge kann, wie aus der Fig. 3 ersichtlich ist, der Blockteil 9 weggelassen und beispielsweise durch Andrückor­ gane 18 ersetzt werden, welche aus Losrollen 19 bestehen, mit dem Vorteil, daß ein Rutschen des Streifens 2 vermieden wird.Accordingly, as can be seen from FIG. 3, the block part 9 can be omitted and replaced, for example, by pressure gates 18 , which consist of idler rollers 19 , with the advantage that slipping of the strip 2 is avoided.

Es ist weiters zu beachten, daß die Möglichkeit der Verstel­ lung der Lage des zylindrischen Elements 13 im Inneren der Umlenkwalze 7 eine präzise örtliche Anordnung der Wärmequel­ le gestattet, wenn es erforderlich sein sollte, die Lage des Aufreißstreifens 2 auf dem Band 3 zu ändern. Diese Verstel­ lung kann durch Verschieben des Flansches 16 auf der Muffe 17 nach Lockerung einer Blockierungsschraube 20 erfolgen.It should also be noted that the possibility of adjusting the position of the cylindrical element 13 inside the deflecting roller 7 allows a precise location of the heat source le should it be necessary to change the position of the tear strip 2 on the belt 3 . This adjustment can be done by moving the flange 16 on the sleeve 17 after loosening a locking screw 20 .

Während bei den vorstehend beschriebenen Ausführungsformen am Band 3 ein endloser Aufreißstreifen 2 angeschweißt wird, werden bei der Variante gemäß Fig. 4 der geheizten Walze 4 aufeinanderfolgend durch eine Saugfläche 21 Aufreißstreifen 22 von bestimmter Länge zugeführt, die in an sich bekannter Weise, beispielsweise wie in der US-PS 31 46 152 der Anmelderin beschrieben, erhalten wurden.While in the above-described embodiments an endless tear strip 2 is welded onto the strip 3 , in the variant according to FIG. 4 the heated roller 4 is successively fed tear strips 22 of a certain length through a suction surface 21 , which in a manner known per se, for example as in of the applicant's US Pat. No. 3,146,152.

Die geheizte Walze 7, deren zylindrische Oberfläche in die­ sem Falle mit Löchern 23, die in nicht gezeigter Weise mit einer Saugquelle in Verbindung stehen, versehen ist, nimmt aufeinanderfolgend die Streifen 22 von der Fläche 21 ab und führt sie zusammen mit dem Band 3 unter Zusammenwirkung mit einer zur Walze 7 in der Zusammenlaufzone zwischen Band 3 und Streifen 21 tangentialen Andrückwalze 24 der Schweißvor­ richtung 9 zu.The heated roller 7 , the cylindrical surface in this case with holes 23 , which are not shown in connection with a suction source, is provided, takes the strips 22 from the surface 21 in succession and passes them together with the tape 3 Cooperation with a roller 7 in the convergence zone between belt 3 and strip 21 tangential pressure roller 24 of the 9 weld direction.

Claims (5)

1. Vorrichtung für die Anbringung eines Aufreißstreifens (2 oder 22) an einem endlosen Band (3) aus Umhüllungsmate­ rial, bestehend aus Zuführungseinrichtungen (5, 6) für das Band (3) und den Streifen (2 oder 22), einer gemeinsamen Um­ lenkwalze (7) für das Band (3) und den Streifen (2 oder 22), und Schweißeinrichtungen (9 oder 7) zum Verschweißen des Streifens (2 oder 22) mit dem Band (3), während dieselben um die Umlenkwalze (7) laufen, gekennzeichnet durch Heizeinrich­ tungen (14) zum Heizen der Umlenkwalze (7).1. Device for attaching a tear strip ( 2 or 22 ) to an endless belt ( 3 ) made of wrapping material, consisting of feed devices ( 5, 6 ) for the belt ( 3 ) and the strips ( 2 or 22 ), a common order guide roller ( 7 ) for the belt ( 3 ) and the strip ( 2 or 22 ), and welding devices ( 9 or 7 ) for welding the strip ( 2 or 22 ) to the belt ( 3 ) while they are around the deflection roller ( 7 ) run, characterized by heating devices ( 14 ) for heating the deflecting roller ( 7 ). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Heizeinrichtungen durch die Umlenkwalze gebildet sind.2. Device according to claim 1, characterized in that the heating devices are formed by the deflecting roller. 3. Vorrichtung nach Anspruch 2, gekennzeichnet durch eine durch Losrollen (19) gebildete Andrückeinrichtung (18) zum Andrücken des Bandes (3) und des Streifens (2 oder 22) an die Umlenkwalze (7).3. Apparatus according to claim 2, characterized by a pressing device ( 18 ) formed by loose rollers ( 19 ) for pressing the band ( 3 ) and the strip ( 2 or 22 ) onto the deflecting roller ( 7 ). 4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Schweißeinrichtungen aus einem fixen Blockteil (9), der auf der zylindrischen Oberfläche der Umlenkwalze (7) auf­ liegt, bestehen.4. The device according to claim 1, characterized in that the welding devices consist of a fixed block part ( 9 ) which lies on the cylindrical surface of the deflecting roller ( 7 ). 5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Lage der Heizeinrichtungen (14) verstellbar ist.5. Device according to one of the preceding claims, characterized in that the position of the heating devices ( 14 ) is adjustable.
DE3821266A 1987-06-25 1988-06-23 Apparatus for attaching a tear-open strip Withdrawn DE3821266A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8703532A IT1207736B (en) 1987-06-25 1987-06-25 DEVICE FOR THE APPLICATION OF A TEAR TAPE ON A CONTINUOUS TAPE OF WRAPPING MATERIAL

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DE3821266A1 true DE3821266A1 (en) 1989-01-12

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938363A (en) * 1989-04-24 1990-07-03 Philip Morris Incorporated Container wrapper with integral tear tape, and methods and apparatus for making same
US5192262A (en) * 1989-04-24 1993-03-09 Philip Morris Incorporated Container wrappers with integral tear tape, and methods and apparatus for making same
EP0569807A1 (en) * 1992-05-14 1993-11-18 Focke & Co. (GmbH & Co.) Device for joining a tear strip to a web material
EP0780212A1 (en) * 1995-12-21 1997-06-25 G.D. S.p.A. Device for fixing a tear-off strip to a web of wrapping material
EP0807513A1 (en) * 1996-05-14 1997-11-19 Focke & Co. (GmbH & Co.) Apparatus for joining a tearstrip to a film
WO2007009936A2 (en) * 2005-07-20 2007-01-25 S.I.M.A. Società Industrie Meccaniche Affini A R.L. Cylinder for driving and heating strips of plastic material during production

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1167731B (en) * 1961-05-31 1964-04-09 Gd Spa Device for successively attaching tear strips to a packaging strip

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1167731B (en) * 1961-05-31 1964-04-09 Gd Spa Device for successively attaching tear strips to a packaging strip
US3146152A (en) * 1961-05-31 1964-08-25 G D Sas Di Enzo Seragnoli & Ar Machine for applying tear-strips upon a web of wrapping material

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938363A (en) * 1989-04-24 1990-07-03 Philip Morris Incorporated Container wrapper with integral tear tape, and methods and apparatus for making same
US5192262A (en) * 1989-04-24 1993-03-09 Philip Morris Incorporated Container wrappers with integral tear tape, and methods and apparatus for making same
EP0569807A1 (en) * 1992-05-14 1993-11-18 Focke & Co. (GmbH & Co.) Device for joining a tear strip to a web material
DE4215690A1 (en) * 1992-05-14 1993-11-18 Focke & Co Device for connecting a tear strip to a material web
US5411625A (en) * 1992-05-14 1995-05-02 Focke & Co. (Gmbh & Co.) Apparatus for bonding a tear tape to a web of material
EP0780212A1 (en) * 1995-12-21 1997-06-25 G.D. S.p.A. Device for fixing a tear-off strip to a web of wrapping material
EP0807513A1 (en) * 1996-05-14 1997-11-19 Focke & Co. (GmbH & Co.) Apparatus for joining a tearstrip to a film
DE19619558A1 (en) * 1996-05-14 1997-11-20 Focke & Co Device for connecting a tear strip with a film web
US5858167A (en) * 1996-05-14 1999-01-12 Focke & Co., (Gmbh & Co) Apparatus for connecting a tear-open strip with a film web
WO2007009936A2 (en) * 2005-07-20 2007-01-25 S.I.M.A. Società Industrie Meccaniche Affini A R.L. Cylinder for driving and heating strips of plastic material during production
WO2007009936A3 (en) * 2005-07-20 2007-05-03 S I M A Societa Ind Meccaniche Cylinder for driving and heating strips of plastic material during production

Also Published As

Publication number Publication date
IT8703532A0 (en) 1987-06-25
IT1207736B (en) 1989-05-25

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