DE10241163B4 - Device and method for producing optical data carriers in particular by bonding blanks by means of UV-curable adhesives - Google Patents
Device and method for producing optical data carriers in particular by bonding blanks by means of UV-curable adhesives Download PDFInfo
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- DE10241163B4 DE10241163B4 DE10241163A DE10241163A DE10241163B4 DE 10241163 B4 DE10241163 B4 DE 10241163B4 DE 10241163 A DE10241163 A DE 10241163A DE 10241163 A DE10241163 A DE 10241163A DE 10241163 B4 DE10241163 B4 DE 10241163B4
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- blanks
- radiation
- blank
- dvd
- adhesive
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Classifications
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- 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
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
- B29C66/452—Joining of substantially the whole surface of the articles the article having a disc form, e.g. making CDs or DVDs
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- 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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
- B29C65/1435—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. transmission welding
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- 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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
- B29C65/1445—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface heating both sides of the joint
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- 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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
- B29C65/1448—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface radiating the edges of the parts to be joined, e.g. for curing a layer of adhesive placed between two flat parts to be joined, e.g. for making CDs or DVDs
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- 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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1429—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
- B29C65/1464—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators
- B29C65/1467—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous welding
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- 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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1477—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier
- B29C65/1483—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation making use of an absorber or impact modifier coated on the article
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- 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
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
- B29C65/4845—Radiation curing adhesives, e.g. UV light curing adhesives
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- 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
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- 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
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/65—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles with a relative motion between the article and the welding tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
- B32B37/0015—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid warp or curl
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- 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
- B29C2035/0827—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 UV 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
- 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
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- 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
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/1403—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the type of electromagnetic or particle radiation
- B29C65/1406—Ultraviolet [UV] radiation
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- 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
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
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- 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
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- 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
- B29C66/94—Measuring or controlling the joining process by measuring or controlling the time
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- 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
- B29C66/96—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2017/00—Carriers for sound or information
- B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
- B29L2017/003—Records or discs
- B29L2017/005—CD''s, DVD''s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
- B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2429/00—Carriers for sound or information
- B32B2429/02—Records or discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
Abstract
Verfahren zum Herstellen von optischen Datenträgern durch Verkleben zweier aufeinanderliegender Rohlinge (1, 2) mit gemeinsamer Achse (A) und Aushärten der Klebeverbindung durch Einstrahlen von elektromagnetischer Strahlung, dadurch gekennzeichnet, dass die radiale Intensitätsverteilung der auf die Oberfläche des ersten Rohlings (1) einfallenden Strahlung über mindestens einen während des Verfahrens erfassten Parameter gesteuert wird.method for the production of optical data carriers by gluing two superimposed blanks (1, 2) with a common axis (A) and curing the Adhesive bond by irradiation of electromagnetic radiation, characterized in that the radial intensity distribution the on the surface of the first blank (1) incident radiation over at least one during the Controlled parameter is controlled.
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Herstellen von optischen Speichermedien, wie DVDs (Digital Versatile Discs) und DV-Rs (Blue-Ray-Discs) insbesondere durch Verkleben von aufeinander liegenden Rohlingen mittels UV-härtbaren Klebern.The The invention relates to an apparatus and a method for manufacturing of optical storage media, such as DVDs (Digital Versatile Discs) and DV-Rs (Blue-Ray-Discs) in particular by gluing superimposed blanks by means of UV-curable Adhesives.
Es ist bereits bekannt, DVD-Rohlinge mittels eines UV-härtenden Klebers zu verbinden. Der Kleber wird auf die DVD-Rohlinge, die durch Spritzgießen hergestellt wurden, mittels eines Verfahrens, wie es zum Beispiel in der DE-196 51 423 beschrieben ist, aufgetragen; danach wurden die DVD-Rohlinge aneinander gefügt. Für die Verbindung mittels eines Klebers ist es erforderlich, daß der Kleber getrocknet bzw. ausgehärtet wird.It is already known, DVD blanks by means of a UV-curing Glue to connect. The glue is applied to the blank DVD discs by injection molding were prepared by a method such as in DE-196 51 423 is described, applied; after that the DVD blanks joined together. For the Connection by means of an adhesive, it is necessary that the adhesive dried or cured becomes.
Aus der EP-A2-1 059 344 ist bereits ein Verfahren zum Aushärten einer Klebstoffschicht zwischen zwei aufeinander liegenden DVD-Rohlingen durch UV-Bestrahlung bekannt, wobei die DVD-Rohlinge durch Härten des Klebers miteinander verbunden werden. Dieses Verfahrens soll insbesondere dann eingesetzt werden, wenn DVD-Rohlinge für UV-Licht schlecht durchlässig sind, wobei eine UV-Lichtquelle im Randbereich der DVD-Hälften und eine UV-Lichtquelle im Zentralbereich der DVD-Hälften vorgesehen sind. Die UV-Lichtquelle im Randbereich strahlt UV-Licht in den Kleber von der Seite ein. Die UV-Lichtquelle im Zentralbereich ist ein Lichtleiter, der in das Mittelloch der DVD-Rohlinge eingeführt wird und vom Zentrum der DVD-Rohlinge aus seitlich die Kleberschicht zwischen den DVD-Hälften bestrahlt. Auf diese Weise breitet sich UV-Licht parallel zur Ebene der DVD-Rohlinge in der Kleberschicht aus und härtet diese aus.Out EP-A2-1 059 344 is already a method for curing a Adhesive layer between two superposed DVD blanks UV irradiation known, wherein the DVD blanks by curing of the adhesive. This procedure should especially when used when blank DVD for UV light poorly drained are, with a UV light source in the edge region of the DVD halves and a UV light source in the Central area of the DVD halves are provided. The UV light source In the edge area UV light radiates into the adhesive from the side. The UV light source in the central area is a light guide that enters the Center hole of the DVD blanks is introduced and laterally from the center of the DVD blanks the adhesive layer between the DVD halves irradiated. In this way, UV light propagates parallel to the plane the DVD blanks in the adhesive layer and hardens them.
Bei
der Verbindung von DVD-Rohlingen oder anderen Rohlingen für optische
Datenträger
besteht jedoch das Problem, daß die
fertig verklebten Scheiben nicht völlig eben sind, sondern die
verklebten Scheiben zum Rand hin einen über einem Toleranzwert hinausgehenden
Winkel δ (Toleranz
der Fertigung pro Scheibe z.B. δ ± 0,8°) gegenüber der
Ebene bilden, wodurch das Lesen bzw. Beschreiben des Datenträgers beeinträchtigt oder
sogar unmöglich wird.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zum Herstellen von optischen Datenträgern durch Verkleben zweier aufeinander liegender Rohlingen zur Verfügung zu stellen, wobei Verbiegungen des fertigen Datenträgers ausreichend vermieden werden und Energie eingespart wird.Of the Invention is based on the object, an apparatus and a method for producing optical data carriers by gluing two together lying blanks available ask, with bends of the finished disk sufficient be avoided and energy saved.
Die Aufgabe wird mit den Merkmalen der Patentansprüche gelöst.The The object is achieved with the features of the claims.
Aus
der
Aus
der
Aus der EP-1164009 A2 und der JP 62-164242 A sind Verfahren zum Herstellen von optischen Datenträgern durch Verkleben zweier aufeinaderliegender Rohlinge bekannt. Die Aushärtung der Klebeverbindung erfolgt mittels elektromagnetischer Strahlung, insbesondere UV-Strahlung. Die Intensitätsverteilung der Strahlung über die Werkstückfläche wird vor dem Anlauf der kontinuierlich laufenden Anlagen durch vorgegebene Anordnung der Strahlungsquelle relativ zur Behandlungsstation festgelegt und während des Betriebs nicht geändert.Out EP 1164009 A2 and JP 62-164242 A are methods for manufacturing of optical data carriers by gluing two aufeinaderliegender blanks known. The curing the adhesive bond is made by means of electromagnetic radiation, in particular UV radiation. The intensity distribution of the radiation over the Workpiece surface is before the start-up of continuously running systems by default Arrangement of the radiation source relative to the treatment station set and while of the operation not changed.
Aus
der
Bei der Lösung geht die Erfindung von folgenden Grundgedanken aus.at the solution the invention proceeds from the following basic ideas.
Es ist mindestens eine Strahlungsquelle vorgesehen, um gesteuert, d.h., mit gleichbleibender oder variabler Intensität Energie in mindestens eine Oberfläche eines Rohlings einzustrahlen. Die Energie der Strahlung kann in der Oberfläche oder in der Grenzfläche des Rohlings zum anderen Rohling lokalisiert absorbiert werden und somit durch unterschiedliche Erwärmung der Rohlinge in seiner Oberfläche und in seiner Grenzfläche zu dem anderen Rohling Verbiegungen der Rohlinge (z. B. bedingt durch den Herstellungsprozeß) beseitigen bzw. unerwünschte Verbiegungen des fertigen optischen Datenträgers verhindern. Die Strahlung kann den jeweiligen Rohling durchdringen und im Grenzbereich zwischen den beiden Rohlingen eine Verbindung (Bonden) der Rohlinge durch Direktverbindung oder Aushärten eines eingebrachten Klebers bewirken.It at least one radiation source is provided to be controlled, i.e., with constant or variable intensity energy in at least one surface of a To irradiate blanks. The energy of the radiation can be in the surface or in the interface from the blank to the other blank are absorbed and localized thus by different heating the blanks in its surface and in its interface to the other blank bends of the blanks (eg due to the manufacturing process) eliminate or unwanted Prevent bending of the finished optical data carrier. The radiation can penetrate the respective blank and in the border area between the two blanks a connection (bonding) of the blanks Direct connection or curing cause an introduced adhesive.
In einer bevorzugten erfindungsgemäßen Ausführungsform werden zwei miteinander zu verbindende Rohlinge (z. B. DVD-Hälften) nach einem bekannten Verfahren übereinander, im Mittelloch zentriert angeordnet und z. B. durch einen Greifer im Mittelloch gehalten. Sie können auch auf einem Dorn, der das Mittelloch durchdringt, abgesetzt werden. Die beiden Rohlinge können von der Oberseite, von der Unterseite und radial außen (Rand) bestrahlt werden, wobei durch die Halterung der Rohlinge eine entsprechende Bestrahlungsfreiheit gewährleistet sein muss.In a preferred embodiment of the invention two blanks to be joined together (eg DVD halves) become a known method on top of each other, centered in the center hole and z. B. by a gripper kept in the middle hole. You can also on a thorn, which penetrates the middle hole, be discontinued. The two blanks can from the top, from the bottom and radially outside (edge) be irradiated, whereby by the holder of the blanks a corresponding Irradiation guaranteed have to be.
Eine bevorzugte erfindungsgemäße Vorrichtung sieht mindestens eine Strahlungsquelle, die in einer besonders bevorzugten Ausführungsform am Außenrand der Rohlinge angeordnet ist, und mindestens einen Spiegel vor, der oberhalb der Oberfläche einer der Rohlinge angeordnet ist. Die Strahlungsquelle bestrahlt sowohl den Rand des optischen Datenträgers parallel zu deren Grenzflächen als auch den Spiegel, der die Strahlung auf die Oberfläche des Rohlings reflektiert. Der Spiegel kann eben oder gekrümmt sein und in axialer und/oder radialer Richtung relativ zu den Oberflächen der Rohlinge gesteuert, z.B. entsprechend einem Rechnerprogramm, bewegbar sein, z.B. durch Kippen und/oder Bewegen senkrecht und/oder parallel relativ zu den Rohlingsoberflächen. Auf diese Weise ist die auf die Rohlingsoberfläche eingestrahlte Strahlungsintensität abhängig von der radialen Position auf der Rohlingsoberfläche gesteuert veränderbar. Die Strahlung dringt durch den Rohling hindurch bzw. vom Rand her in den Grenzflächenbereich zwischen den DVD-Hälften ein und härtet den Kleber aus, der sich zwischen den beiden Rohlingen befindet bzw. am Rand austritt. Die Strahlungsquelle ist bei UV-härtenden Klebern bevorzugt eine UV-Quelle.A preferred device according to the invention sees at least one radiation source, which in a particularly preferred embodiment on the outer edge the blanks is arranged, and at least one mirror before, the above the surface of a the blanks is arranged. The radiation source irradiates both the edge of the optical disk parallel to their interfaces as well as the mirror that transmits the radiation to the surface of the blank reflected. The mirror may be flat or curved and in axial and / or controlled radially relative to the surfaces of the blanks, e.g. according to a computer program, be movable, e.g. by tilting and / or Move vertically and / or parallel relative to the blank surfaces. On In this way, the irradiation intensity radiated onto the blank surface depends on the radial position controlled controlled on the blank surface. The radiation penetrates through the blank or from the edge in the interface area between the DVD halves and cures the glue that is between the two blanks or exits at the edge. The radiation source is UV-curing Glues prefer a UV source.
Durch Drehen der Rohlinge um die gemeinsame Achse A erfolgt die Bestrahlung der Rohlinge azimutal gleichmäßig.By Turning the blanks about the common axis A, the irradiation takes place the blanks azimuthal evenly.
Durch die Erfindung kann eine sehr gleichmäßige Verbindung der Rohlinge erreicht werden, da die Energiezufuhr zur Oberfläche und zum Grenzflächenbereich zwischen den beiden Rohlingen und zum Scheibenrand lokal gesteuert werden kann und eventuelle Verbiegungen der Rohlinge vor oder bei dem Verbindungsprozess beseitigt bzw. verhindert werden. Durch die Verwendung von Spiegeln kann die Energie der Strahlungsquelle optimal ausgenutzt und damit Energie eingespart werden; ferner wird die Lebensdauer der Strahlungsquelle erhöht.By The invention can be a very uniform compound of the blanks can be achieved because the energy supply to the surface and to the interface area controlled locally between the two blanks and the edge of the disc can be and any bending of the blanks before or at the Connection process can be eliminated or prevented. By use of mirrors, the energy of the radiation source can be optimally utilized and so that energy can be saved; Furthermore, the life of the Radiation source increases.
Im folgenden wird die Erfindung anhand der Zeichnungen näher erläutert. Es zeigen:in the The invention will be explained in more detail with reference to the drawings. It demonstrate:
Vorteilhafterweise
strahlt die Strahlungsquelle
Die
Beeinflussung der Durchbiegung funktioniert wie folgt. Das Material
der DVD-Halbseiten
des optischen Datenträgers,
das z.B. aus Polycarbonat oder einem anderen Material besteht, absorbiert Strahlung
R und wandelt diese in Wärme
um. Die Wärme
führt zur
thermisch bedingten Ausdehnung der Rohlinge
Durch einen Regelkreis (Rechnerprogramm) kann die Aufteilung der Strahlleistung auf die Ober- und Unterseite der Rohlinge so eingestellt werden, daß die Durchbiegung des fertig abgekühlten optischen Datenträgers in einem gewünschten Toleranzbereich liegt.By a control loop (computer program) can be the division of the beam power be set on the top and bottom of the blanks so that the deflection the finished cooled optical data carrier in a desired Tolerance range is.
Da
die Strahlerröhre
Es besteht auch die Möglichkeit, eine oder mehrere weitere Strahlungsquelle(n) mit entsprechenden Spiegelanordnungen am Umfang des Substratrandes gleichmäßig verteilt anzuordnen. Im Falle von z.B. zwei oder drei Strahlungsquellen/Spiegelanordnungen sind diese im Abstand von 180° bzw. 120° am Substratumfang angeordnet. Auf diese Weise wird die Gleichmäßigkeit der Energieverteilung und die Aushärtungsgeschwindigkeit des Klebers erhöht.It there is also the possibility one or more further radiation source (s) with corresponding ones Mirror arrangements evenly distributed on the circumference of the substrate edge to arrange. In the case of e.g. two or three radiation sources / mirror arrangements These are at a distance of 180 ° or 120 ° on Substratumfang arranged. In this way, the uniformity the energy distribution and the curing rate of the adhesive elevated.
Die Einstrahlung von Energie in den optischen Datenträger kann durch ein Rechnerprogramm gesteuert werden. Parameter dieses Programms können die gewünschte Zeit der Bearbeitung, die Materialkonstanten der Rohlinge und des Klebers sowie die Verbiegung der Rohlinge vor und während der Energieeinstrahlung aber insbesondere auch nach der Energieeinstrahlung sein. Vorteilhaft ist, wenn durch eine entsprechende Meßeinrichtung die Verbiegung der Rohlinge nach der Energieeinstrahlung ständig oder intermittierend gemessen wird, so daß das Meßergebnis für die Behandlung der nachfolgenden Rohlinge berücksichtigt werden kann. Das Ziel der gesteuerten Energieeinstrahlung ist es, verklebte optische Datenträger zu erhalten, die innerhalb eines zulässigen Toleranzbereichs plan sind.The Radiation of energy in the optical disk can be controlled by a computer program. Parameters of this program can the desired Time of processing, the material constants of the blanks and the adhesive as well as the bending of the blanks before and during the energy irradiation but especially after the energy irradiation. Is advantageous if by a corresponding measuring device, the bending the blanks are measured continuously or intermittently after energy irradiation, so that measurement result for the Treatment of the subsequent blanks can be considered. The The aim of the controlled energy radiation is to glued optical disk which are flat within a permissible tolerance range.
Bei der Aushärtung eines Klebers mittels der erfindungsgemäßen Vorrichtung und durch das erfindungsgemäße Verfahren läßt sich gegenüber einer herkömmlichen Aushärtung eine Einsparung der elektrischen Leistung von 5 bis 10 kW erreichen.at the curing an adhesive by means of the device according to the invention and by the inventive method let yourself across from a conventional one curing achieve a saving in electrical power of 5 to 10 kW.
Die
Erfindung kann auch zum Einsatz kommen, wenn eine Direktverbindung
durch Aufschmelzen der Grenzflächen
Die
Erfindung ist auch anwendbar, wenn die Verbindung der beiden Rohlinge
Claims (12)
Priority Applications (1)
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DE10241163A DE10241163B4 (en) | 2002-09-05 | 2002-09-05 | Device and method for producing optical data carriers in particular by bonding blanks by means of UV-curable adhesives |
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DE10241163A DE10241163B4 (en) | 2002-09-05 | 2002-09-05 | Device and method for producing optical data carriers in particular by bonding blanks by means of UV-curable adhesives |
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DE10241163A1 DE10241163A1 (en) | 2004-03-25 |
DE10241163B4 true DE10241163B4 (en) | 2006-05-18 |
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Citations (7)
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JPS62164242A (en) * | 1986-01-14 | 1987-07-20 | Matsushita Electric Ind Co Ltd | Production of disk carrier for optical information recording and reproduction |
US5716761A (en) * | 1995-09-19 | 1998-02-10 | Pioneer Electronic Corporation | Double-sided-multi-layered optical disc and a method for manufacturing the same |
DE19651423A1 (en) * | 1996-12-11 | 1998-06-25 | Singulus Technologies Ag | Device for gluing substrates or compact sound plates formed from two parts |
US6136133A (en) * | 1997-12-17 | 2000-10-24 | Pioneer Electronic Corporation | Method of producing optical disc of bonded type |
EP1059344A2 (en) * | 1999-06-11 | 2000-12-13 | Kitano Engineering Co., Ltd. | Method of an apparatus for curing an optical disc |
DE69611697T2 (en) * | 1995-03-15 | 2001-08-16 | Nlm Combineering Aps Naerum | METHOD FOR ACTIVATING PHOTOINITIATORS IN LIGHT-SENSITIVE SUBSTRATES AND DEVICE FOR CURING SUCH SUBSTRATES |
EP1164009A2 (en) * | 1997-11-12 | 2001-12-19 | First Light Technology, Inc. | System and method for curing a resin disposed between a top and bottom substrate with thermal management |
-
2002
- 2002-09-05 DE DE10241163A patent/DE10241163B4/en not_active Expired - Fee Related
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JPS62164242A (en) * | 1986-01-14 | 1987-07-20 | Matsushita Electric Ind Co Ltd | Production of disk carrier for optical information recording and reproduction |
DE69611697T2 (en) * | 1995-03-15 | 2001-08-16 | Nlm Combineering Aps Naerum | METHOD FOR ACTIVATING PHOTOINITIATORS IN LIGHT-SENSITIVE SUBSTRATES AND DEVICE FOR CURING SUCH SUBSTRATES |
US5716761A (en) * | 1995-09-19 | 1998-02-10 | Pioneer Electronic Corporation | Double-sided-multi-layered optical disc and a method for manufacturing the same |
DE19651423A1 (en) * | 1996-12-11 | 1998-06-25 | Singulus Technologies Ag | Device for gluing substrates or compact sound plates formed from two parts |
EP1164009A2 (en) * | 1997-11-12 | 2001-12-19 | First Light Technology, Inc. | System and method for curing a resin disposed between a top and bottom substrate with thermal management |
US6136133A (en) * | 1997-12-17 | 2000-10-24 | Pioneer Electronic Corporation | Method of producing optical disc of bonded type |
EP1059344A2 (en) * | 1999-06-11 | 2000-12-13 | Kitano Engineering Co., Ltd. | Method of an apparatus for curing an optical disc |
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