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DE1167005B - Process and device for the production of two or more layers of reinforced or laminated plastic films - Google Patents

Process and device for the production of two or more layers of reinforced or laminated plastic films

Info

Publication number
DE1167005B
DE1167005B DER31642A DER0031642A DE1167005B DE 1167005 B DE1167005 B DE 1167005B DE R31642 A DER31642 A DE R31642A DE R0031642 A DER0031642 A DE R0031642A DE 1167005 B DE1167005 B DE 1167005B
Authority
DE
Germany
Prior art keywords
heating
film
register
heating elements
foils
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.)
Pending
Application number
DER31642A
Other languages
German (de)
Inventor
Dipl-Ing Guenther Missbach
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.)
GUENTHER MISSBACH DIPL ING
Original Assignee
GUENTHER MISSBACH DIPL ING
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 GUENTHER MISSBACH DIPL ING filed Critical GUENTHER MISSBACH DIPL ING
Priority to DER31642A priority Critical patent/DE1167005B/en
Publication of DE1167005B publication Critical patent/DE1167005B/en
Pending 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
    • B29C66/90—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
    • B29C66/912—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux
    • B29C66/9121—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature
    • B29C66/91221—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by measuring the temperature, the heat or the thermal flux by measuring the temperature of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • 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
    • B29C35/10—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation for articles of indefinite length
    • 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
    • B29C65/1412—Infrared [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
    • 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
    • B29C65/1454—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 scanning at least one of the parts to be joined
    • B29C65/1458—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 scanning at least one of the parts to be joined once, i.e. contour welding
    • 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
    • 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
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • 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
    • 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
    • B29C66/91411—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 parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • 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
    • B29C66/9161—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 heat or the thermal flux, i.e. the heat flux
    • 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
    • B29C66/9161—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 heat or the thermal flux, i.e. the heat flux
    • B29C66/91641—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 heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time
    • B29C66/91643—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 heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile
    • B29C66/91645—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 heat or the thermal flux, i.e. the heat flux the heat or the thermal flux being non-constant over time following a heat-time profile by steps
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • 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
    • B29C66/91423—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 using joining tools having different temperature zones or using several joining tools with different temperatures
    • 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
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • 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
    • B29C66/961—Measuring or controlling the joining process characterised by the method for implementing the controlling of the joining process involving a feedback loop mechanism, e.g. comparison with a desired value
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/685—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by laminating inserts between two plastic films or plates
    • B29C70/687—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks by laminating inserts between two plastic films or plates the inserts being oriented, e.g. nets or meshes
    • 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
    • B29L2009/00—Layered products

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

Verfahren und Vorrichtung zur Herstellung von zwei- oder mehrlagigen armierten bzw. aufeinanderkaschierten Kunststoffolien Die Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zur Herstellung von zwei- oder mehrlagigen armierten bzw. kaschierten Kunststofffolien mit dazwischen angeordneten Gewebelagen od. dgl., wobei die Verbindung der Folien an den Berührungsstellen durch Kontaktschweißung nach vorangegangener Plastifizierung und das Aneinanderpressen der einzelnen Folienschichten mittels Unterdruck erfolgt und wobei die Folien durch Strahlungsheizen auf die für die Kontaktschweißung erforderliche Plastifizierungstemperatu r gebracht werden.Method and device for the production of two or more layers Reinforced or laminated plastic films The invention relates to a method and an apparatus for the production of two or more layers Reinforced or laminated plastic films with layers of fabric in between or the like, the connection of the foils at the points of contact by contact welding after previous plasticization and pressing the individual film layers together takes place by means of negative pressure and wherein the foils by radiant heating on the for the plasticizing temperature required for the contact welding.

Bei der Herstellung solcher mehrlagigen Folien wird die zwischen den Lagen befindliche Luft an den Rändern der Folien abgesaugt, so daß diese, nachdem sie auf die für die Kontaktschweißung erforderliche Temperatur erhitzt wurden, von dem äußeren Luftdruck aufeinandergepreßt und miteinander verschweißt werden. In the production of such multilayer films, the between the layers located air sucked at the edges of the foils, so that these after they have been heated to the temperature required for contact welding, of pressed against each other by the external air pressure and welded together.

Besonders bei verhältnismäßig weichem Folienmaterial bzw. bei besonders dünnen Folien kann es dabei gelegentlich vorkommen, daß an einzelnen Stellen besonders im mittleren Bereich Luftrückstände oder Dämpfe verbleiben und eingeschlossen werden. Especially with relatively soft film material or with particularly thin foils it can occasionally happen that in individual places especially air residues or vapors remain in the middle area and become trapped.

An diesen Stellen ist also keine oder nur eine unvollkommene Verschweißung erfolgt. Dies hat seine Ursache darin, daß infolge von Wärmestauungen an einigen Stellen der Folienbahn durch die Beheizung bereits eine Plastifizierung und Berührung der Folie erfolgt, wodurch in den Randbereichen nicht mehr genügend Zwischenraum verbleibt, um die Luft bzw.So there is no or only an imperfect weld at these points he follows. This is due to the fact that as a result of heat build-up on some The heating means that the film web is already plastified and touched the film takes place, which means that there is no longer enough space in the edge areas remains to remove the air or

Dämpfe ausreichend abzusaugen. Es bilden sich infolgedessen Luftblasen, die wärmeisolierend wirken.Sufficiently extract vapors. As a result, air bubbles form which have a heat-insulating effect.

Das hat zur Folge, daß die obere Folie - im Gegensatz zu denjenigen Zonen, wo sie auf der unteren Folie unmittelbar aufliegt - die Wärme nicht an die untere Folie abgeben kann.As a result, the upper film - in contrast to those Zones where it rests directly on the lower film - the heat does not reach the lower film can release.

Besonders bei dünnen Folien sind auch schon geringe Wärmestauungen im mittleren Bereich der Folien sehr nachteilig, da hierdurch die Oberrolle sehr leicht zerstört werden kann. Selbst kleinste, mit dem Auge kaum erkennbare Zerstörungen der Folie haben zur Folge, daß der Raum zwischen den Folien nicht mehr evakuiert werden kann. Particularly with thin foils, there is already a slight build-up of heat very disadvantageous in the middle area of the foils, as this results in the upper roll very much can be easily destroyed. Even the smallest damage that is barely visible to the naked eye the foil have the consequence that the space between the foils is no longer evacuated can be.

Gemäß der Erfindung werden diese Nachteile dadurch vermieden, daß der Verbundstoff, vom mittleren Bereich aus beginnend, nach den beiden Rändern zu fortschreitend erwärmt wird. According to the invention, these disadvantages are avoided in that the composite material, starting from the middle area, towards the two edges is progressively heated.

Die Wärmewirkung soll also, mit anderen Worten, im mittleren Bereich der Folienbahnen einsetzen und sich allmählich auf die Randbereiche ausdehnen, damit Plastifizierung, Annäherung und Berührung der Folien zunächst im mittleren Bereich beginnen und auf diese Weise ein Absaugen nach den Randbereichen zu sichergestellt wird. Es wird das Absaugen noch dadurch unterstützt, daß der atmosphärische Druck, wenn er zunächst in der Mitte wirksam wird und die obere Folie gegen die untere drückt, die dazwischen befindliche Luft nach den Rändern zu drückt. In other words, the heat effect should be in the middle area insert the film webs and gradually expand to the edge areas, so Plasticization, approach and contact of the foils initially in the middle area begin and in this way a suction after the edge areas to be ensured will. The suction is supported by the fact that the atmospheric pressure, when it first takes effect in the middle and the upper film against the lower pushes to push the air in between towards the edges.

Als besonders zweckmäßig für die Erwärmung der Folien erweist sich ein Heizregister, z. B. mit Infrarotstrahlern, dessen einzelne Heizelemente derart symmetrisch zur Längsmittelachse der Folien angeordnet sind, daß die Länge bzw. die Anzahl der in Arbeitsrichtungi hintereinanderliegenden Heizelemente sich zunächst stufenweise von der Mitet nach den Rändern hin vergrößert und anschließend von der Mitte nach den Rändern hin vermindert. Auf diese Weise wird die Folie im mittleren Bereich zuerst erwärmt, so daß auch die Verschweißung in diesem Bereich beginnt und dann allmählich nach den Rändern fortschreitet. It has proven to be particularly useful for heating the foils a heating register, e.g. B. with infrared heaters, the individual heating elements of which are arranged symmetrically to the longitudinal center axis of the foils that the length or the number of heating elements lying one behind the other in the working direction gradually enlarged from the mitet towards the edges and then from the Center diminished towards the edges. This way the slide will be in the middle The area is heated first so that the welding also begins in this area and then gradually progresses towards the edges.

Die Heizleistung der abgestuften Heizelemente wird derart bemessen, daß sich für das Register als Ganzes etwa eine Heizleistung ergibt, die der eines Registers mit gleich langen, über die Folienbreite durchgehenden Heizelementen bzw. Heizstäben entspricht. The heating power of the graduated heating elements is dimensioned in such a way that that for the register as a whole there is about a heating output that is the same as that of the one Register with heating elements of the same length and continuous over the width of the film. Corresponds to heating rods.

Die Anordnung der Heizelemente des Heizregisters kann ferner vorteilhaft so getroffen sein, daß die Summe aller Heizelemente bzw. Heizstäbe des Heizregisters, in Arbeitsrichtung des Verfahrens gesehen, in allen Abständen zu der Symmetrieachse konstant oder nahezu konstant ist. Durch diese Anordnung wird erzielt, daß alle Folienbereiche gleichmäßig erwärmt werden. The arrangement of the heating elements of the heating register can also be advantageous be made in such a way that the sum of all heating elements or heating elements of the heating register, seen in the working direction of the process, at all distances from the axis of symmetry is constant or nearly constant. This arrangement ensures that all Foil areas are heated evenly.

In vorteilhafter Ausgestaltung der Erfindung kann dem Heizregister eine mit jeweils einer Stromzeige lampe für jedes Heizelement ausgerüstete Leuchttafel zugeordnet sein, wobei die Heizelemente mittels eines jeder Stromzeigelampe zugeordneten Schalters ein-bzw. ausschaltbar sind. Hierdurch wird die Überwachung und Steuerung der Anlage sehr erleichtert. In an advantageous embodiment of the invention, the heating register a light panel equipped with a power indicator lamp for each heating element assigned be, the heating elements by means of a switch associated with each current indicator lamp one or. can be switched off. This enables the monitoring and control of the plant very relieved.

Je nach der zu verarbeitenden Folie können einzelne Heizelemente zu- oder abgeschaltet werden, und es ist dem Aufsichtspersonal möglich, schon aus der Entfernung den Betriebszustand des Heizregisters zu erkennen.Depending on the film to be processed, individual heating elements can be added. or be switched off, and it is possible for the supervisory staff to get out of the Distance to recognize the operating status of the heating register.

Das Heizregister ist schwenkbar gelagert, damit es bei Störungen im Transport der Folie sofort aus deren Bereich entfernt werden kann. The heating register can be swiveled so that it can be used in the event of a malfunction the film can be removed immediately from its area during transport.

Weitere Merkmale der Erfindung sind an Hand der Zeichnung beschrieben in der Ausführungsbeispiele der Erfindung teilweise schematisch dargestellt sind. Es zeigt Fig. 1 eine Übersichtdarstellung einer Kaschieranlage, Fig. 2 schematisch die Anordnung des Heizre-Registers F i g. 3 ein Heizregister in Ansicht, F i g. 4 bis 7 eine andere Ausführungsform des Heizregisters, F i g. 8 und 9 zwei weitere Ausführungsformen, F i g. 10 schematisch die Kaschiertrommel der F i g. 1 im Längsschnitt mit einer mehrlagigen Kunststoffolie. Further features of the invention are described with reference to the drawing in the exemplary embodiments of the invention are shown partially schematically. 1 shows an overview of a laminating system, FIG. 2 schematically the arrangement of the heating register F i g. 3 a heating register in view, FIG. 4 to 7 another embodiment of the heating register, FIG. 8 and 9 two more Embodiments, FIG. 10 schematically shows the laminating drum of FIG. 1 in longitudinal section with a multilayer plastic film.

F i g. 1 zeigt die Kaschieranlage im Gesamtaufbau Wesentliches Bauelement der Anlage ist die mit einem nicht dargestellten Antrieb versehene drehbare Kaschiertrommel. Diese ist als Saugtrommel ausgebildet, d. h. das Innere der Trommel ist z. B. über die ihr zugeordnete Hohlwelle 2 an eine Vakuumanlage angeschlossen. Der Trommelmantel weist an seinem Umfang mehrere Saugöffnungen 3 auf (F i g. 10) und ist außen mit einem festen, jedoch porösen Trommelmantel 4 versehen, auf dem die zu kaschierenden Folien während eines Teils einer Trommelumdrehung aufliegen. F i g. 1 shows the overall structure of the laminating system, an essential component of the system is the rotatable laminating drum provided with a drive (not shown). This is designed as a suction drum, d. H. the inside of the drum is e.g. B. over its associated hollow shaft 2 is connected to a vacuum system. The drum jacket has several suction openings 3 on its circumference (FIG. 10) and is on the outside with a solid, but porous drum shell 4 is provided on which the to be concealed Foils are placed on part of a drum revolution.

An dem Maschinengestell 5 sind die Folienrollen 6 und 7 gelagert. Diese Folien sollen während ihres Umlaufs über die Trommel miteinander verschweißt werden und dabei ein von der Rolle 8 ablaufendes Gittergewebe einschließen, so daß eine mit dem Gittergewebe armierte Folie entsteht, die nach Ablauf von der Trommel über einen Kontrolltisch 9 geführt und am anderen Ende der Anlage auf die Rolle 10 aufgewickelt wird. Da die Folien 6 und 7 bei ihrem Auflauf auf die Trommel nicht unmittelbar aufeinanderliegen, sondern durch das zwischen ihnen liegende Gittergewebe einen der Stärke des Gewebes entsprechenden Abstand voneinander haben, muß, bevor nach dem Erhitzen die Verschweißung erfolgen kann, die Luft zwischen den Folien abgesaugt werden. Dies erfolgt in noch näher zu beschreibender Weise durch das im Innern der Trommel herrschende Vakuum. The film rolls 6 and 7 are mounted on the machine frame 5. These foils are supposed to be welded to one another as they circulate over the drum are and include a running from the roll 8 mesh fabric, so that a foil reinforced with the mesh fabric is created, which after it runs off the drum guided over a control table 9 and at the other end of the system on the role 10 is wound up. Since the foils 6 and 7 do not run onto the drum lie directly on top of one another, but rather through the mesh fabric lying between them must have a distance from one another corresponding to the thickness of the fabric before after heating the welding can take place, the air between the foils be sucked off. This is done in a way to be described in more detail by the im Vacuum inside the drum.

Im Innern der Trommel sind ferner an sich bekannte Mittel vorgesehen, die den von der Folie nicht bedeckten Teil des Trommelmantels innen abdecken, um das Vakuum aufrechtzuerhalten.Means known per se are also provided inside the drum, which cover the inside of the part of the drum shell that is not covered by the film to maintain the vacuum.

Das Absaugen der Luft zwischen den Folien wird ferner dadurch erleichtert, daß die Folien 6 und 7 sowie die Armierung 8 jeweils eine unterschiedliche Breite haben. Wie in F i g. 10 zu erkennen ist, ist das Gittergewebe 8 etwas breiter bemessen als die Unterfolie 7, so daß es etwas über die Ränder der Unterfolie hinausragt. Die Oberfolie 6 weist wiederum eine größere Breite auf als das Gittergewebe und überragt dieses ebenfalls an den Rändern. Infolge des im Trommelinnern herrschenden Vakuums werden die Unterfolie und die Ränder der Oberfolie an die Trommeiwand angesaugt, wobei das gegenüber der Unterfolie vorstehende Gitter einen Luftspalt freihält, so daß die Luft zwischen den Folien abgesaugt wird. The suction of the air between the foils is also facilitated by that the foils 6 and 7 and the reinforcement 8 each have a different width to have. As in Fig. 10 can be seen, the mesh fabric 8 is dimensioned somewhat wider than the lower film 7, so that it protrudes slightly beyond the edges of the lower film. The upper film 6 again has a greater width than the mesh fabric and towers this also at the edges. As a result of the vacuum prevailing inside the drum the lower film and the edges of the upper film are sucked onto the drum wall, whereby the grille protruding from the lower film keeps an air gap free, so that the air between the foils is sucked out.

Im Bereich der Trommel ist um eine in dem Maschinengestell 5 angeordnete Achse 11 ein Heizregister 12 schwenkbar gelagert. Durch dieses Heizregister werden die umlaufenden Folienbahnen im Bereich der Heizzone bis zur Plastifizierungstemperatur erhitzt, wonach sie unter der Einwirkung des Vakuums bzw. des äußeren Luftdrucks zusammengepreßt und miteinander verschweißt werden. Bevor die kaschierte Folie die Trommel verläßt. wird ihr in einer Kühlzone 13 Kaltluft zugeführt, wodurch die Temperatur unter die Plastifizierungstemperatur gebracht wird. In the area of the drum is arranged around a in the machine frame 5 Axis 11, a heating register 12 is pivotably mounted. Through this heating register will be the surrounding film webs in the area of the heating zone up to the plasticizing temperature heated, after which they under the action of the vacuum or the external air pressure are pressed together and welded together. Before the laminated film the Drum leaves. cold air is supplied to her in a cooling zone 13, thereby increasing the temperature is brought below the plasticizing temperature.

F i g. 3 zeigt ein Heizregister 12 in Ansicht. Wie in der Zeichnung zu erkennen ist, sind die einzelnen Heizelemente 14 stufenförmig angeordnet, indem am unteren Rand des Registers nur ein Heizelement in der Mitte vorgesehen ist. Es folgen dann in der nächsten Reihe zwei, dann vier und dann schließlich in der Mitte der Heizzone zwei Reihen von jeweils sechs Heizelementen. Die Anzahl der in Arbeitsrichtung hintereinanderliegenden Heizelemente vergrößert sich also zunächst stufenweise nach den Rändern hin, um sich anschließend, ebenfalls nach den Rändern hin, zu vermindern. Um gegebenenfalls durch seitliche Abstrahlung bedingte Wärmeverluste ausgleichen zu können, sind noch Zusatzheizelemente 14' vorgesehen, die in Bedarfsfällen eingeschaltet werden können. F i g. 3 shows a heating register 12 in view. Like in the drawing can be seen, the individual heating elements 14 are arranged in steps by at the bottom of the register only one heating element is provided in the middle. It then follow in the next row two, then four and then finally in the middle the heating zone two rows of six heating elements each. The number of in the working direction heating elements lying one behind the other increases gradually towards the edges to then decrease, also towards the edges. To compensate for any heat losses caused by lateral radiation To be able to, additional heating elements 14 'are provided, which are switched on when necessary can be.

An geeigneter, übersichtlicher Stelle der Anlage ist eine Leuchttafel 23 angebracht, welche für jedes Heizelement des Heizregisters eine Stromanzeigelampe 24 aufweist, und zwar in der gleichen Anordnung wie die Heizelemente. Auf diese Weise ist eine einfache Kontrolle des Heizregisters gegeben, indem die brennenden Lampen anzeigen, daß die ihnen entsprechenden Heizelemente eingeschaltet sind. Jeder Stromanzeigelampe und damit jedem Heizelement ist außerdem ein Schalter 25 zugeordnet. Mittels der Schalter können die Heizelemente ein- oder ausgeschaltet werden. There is a light panel at a suitable, clearly arranged location on the system 23 attached, which has a current indicator lamp for each heating element of the heating register 24 in the same arrangement as the heating elements. To this Way, a simple control of the heating register is given by the burning Lamps indicate that the corresponding heating elements are switched on. Everyone A switch 25 is also assigned to the current indicator lamp and thus to each heating element. The heating elements can be switched on or off using the switches.

Auf der Achse 11 des Heizregisters ist ein Schwenkhebel 19 befestigt, der mit der Kolbenstange eines Druckluftzylinders 20 verbunden ist. Dieser ist an einen nicht dargestellten Druckluftspeicher angeschlossen. Von einem - ebenfalls nicht dargestellten - Luftkompressor wird der Luftspeicher ständig auf einem Druck von 6 atü gehalten. Der Ausschwenkvorgang des Heizregisters kann von Hand ausgelöst werden, indem mittels des Hebels 21 ein dem Druckluftzylinder 20 zugeordnetes Ventil 22 betätigt und der Druckluftzylinder beaufschlagt wird. A pivot lever 19 is attached to the axis 11 of the heating register, which is connected to the piston rod of a compressed air cylinder 20. This is on connected to a compressed air reservoir, not shown. From one - also Not shown - air compressor, the air reservoir is constantly at a pressure held at 6 atm. The heating register can be swiveled out manually by means of the lever 21 a valve assigned to the compressed air cylinder 20 22 is actuated and the compressed air cylinder is applied.

Dieses Ventil ist als Magnetventil mit Rückstellfeder ausgebildet. Beim Ausbleiben des elektrischen Stromes bzw. beim Ausfall einer Netzphase wird das Magnetventil 22 stromlos, wodurch es sich automatisch öffnet, so daß der Druckluftzylinder beaufschlagt und das Heizregister ausgeschwenkt wird.This valve is designed as a solenoid valve with a return spring. If there is no electrical power or if a mains phase fails the solenoid valve 22 is de-energized, whereby it opens automatically, so that the air cylinder applied and the heating register is swiveled out.

Bei dem in F i g. 2 dargestellten Heizregister ist auf der Rückseite der Heizelemente 14 ein Reflektor 15 angebracht, der mit einer Anzahl von Luftschlitzen 16 versehen ist. Durch diese Luftschlitze können heiße Luft und Dämpfe austreten, wodurch unkontrollierbare Wärmestauungen, die zu Überhitzungen der Folie führen können, vermieden werden. In the case of the one shown in FIG. 2 shown heating register is on the back of the heating elements 14, a reflector 15 is attached, which is provided with a number of air slots 16 is provided. Hot air and vapors can escape through these air slots, making uncontrollable Heat build-up leading to overheating the slide can be avoided.

Die Fig.4 bis 7 zeigen schließlich eine andere Form des Heizregisters mit quer über die Folienbahn verlaufenden Heizstäben. Gemäß der Erfindung erfolgt auch bei dieser Ausführung die Erwärmung der Folie - in Arbeitsrichtung gesehen - in ihrem mittleren Bereich. Dies geschieht auf die Weise, daß hintereinander quer über der auf der Trommel aufliegenden Folie Heizstäbe 16, 17, 18 angeordnet sind, die verschiedenartige Krümmungen aufweisen bzw. gerade ausgebildet sind. Wie in F i g. 4 und 5 zu erkennen ist, weisen die - ebenfalls in Arbeitsrichtung des Verfahrens gesehen - ersten drei Heizstäbe 16 und 16' eine unterschiedliche Krümmung in der gleichen Richtung auf, und zwar ist der ersten Heizstab stark zu der auf der Trommel aufliegenden Folie hin gekrümmt, so daß der Heizstab in seinem mittleren Längenbereich der Mitte der Folienbahn nahe kommt. Die Folie wird also hier stärker erwärmt als an ihren Rändern. Die nächsten beiden Heizstäbe 16' sind weniger stark in der gleichen Richtung gekrümmt, während die im mittleren Bereich der Heizzone befindlichen Heizstäbe 17 gerade ausgebildet sind (Fig. 6). Es folgen dann die Heizstäbe 18' und 18 die in entgegengesetzter Richtung gekrümmt sind (Fig. 7), derart, daß die Randzonen der Folie stärker erwärmt werden. In den Fig. 8 und 9 sind zwei weitere Ausführungsformen des Heizregisters dargestellt, und zwar in F i g. 8 eine pfeilförmige Anordnung von Heizstäben 26 und in Fig. 9 eine gleiche Anordnung von Einzelstrahlern 14. Finally, FIGS. 4 to 7 show another form of heating register with heating rods running across the film web. Takes place according to the invention also in this version the heating of the film - seen in the working direction - in their middle area. This is done in such a way that one behind the other transversely heating rods 16, 17, 18 are arranged above the film resting on the drum, which have different curvatures or are straight. As in F i g. 4 and 5 can be seen, the point - also in the working direction of the method seen - first three heating rods 16 and 16 'have a different curvature in the in the same direction, namely the first heating element is stronger than the one on the drum overlying film curved so that the heating rod in its middle length range comes close to the center of the film web. The film is therefore heated more strongly here than at their edges. The next two heating rods 16 'are less powerful in the same Curved direction, while the heating rods located in the middle of the heating zone 17 are straight (Fig. 6). The heating rods 18 'and 18 then follow are curved in the opposite direction (Fig. 7), such that the edge zones the film will be heated more strongly. 8 and 9 are two further embodiments of the heating register shown in F i g. 8 shows an arrow-shaped arrangement of heating rods 26 and, in FIG. 9, an identical arrangement of individual radiators 14.

Zur Messung der Folientemperatur dient ein Thermo-Element 26 mit nachgeschaltetem Lichtmarken-Anzeigegerät. Dieses Gerät enthält einstellbare Maximum- und Minimumkontakte. Die Kaschiertemperatur wird durch Veränderung der Durchlaufgeschwindigkeit der Folie reguliert. Dazu wird die Temperatur in kurzen Zeitabständen, gesteuert durch ein Zeitschaltwerk, abgetastet. Bei Erreichen der eingestellten Maximumtemperatur wird die Durchlaufgeschwindigkeit der Folie erhöht, sonst verringert, so daß die Folientemperatur innerhalb des eingeteilten Temperaturbereiches gefralten wird. A thermal element 26 is also used to measure the film temperature downstream light mark display device. This device contains adjustable maximum and minimum contacts. The lamination temperature is determined by changing the throughput speed the slide regulates. For this purpose, the temperature is controlled at short intervals by a timer, scanned. When the set maximum temperature is reached the throughput speed of the film is increased, otherwise it is reduced, so that the Foil temperature is folded within the divided temperature range.

Claims (7)

Patentansprüche: 1. Verfahren zur Herstellung von zwei- oder mehrschichtigen Kunststoffolien mit dazwischen angeordneten Gewebelagen od. dgl., wobei die Verbindung der Folien an den Berührungsstellen durch Kontaktschweißung nach vorangegangener Plastifizierung und das Aneinanderpressen der einzelnen Folienschichten mittels Unterdruck erfolgt und wobei die Folien durch Strahlungsheizung auf die für die Kontaktschweißung erforderliche Plastifiziernngs-Temperatur gebracht werden, dadurch gekennzeichnet, daß der Verbundstoff, vom mittleren Bereich aus beginnend, nach den beiden Rändern zu fortschreitend erwärmt wird. Claims: 1. Process for the production of two or more layers Plastic films with interposed layers of fabric or the like. The link of the foils at the points of contact by contact welding according to the previous one Plasticizing and pressing the individual film layers together by means of Negative pressure takes place and whereby the foils by radiant heating on the for the Contact welding required plasticizing temperature are brought, thereby characterized in that the composite, starting from the central region, after the two edges is heated to progressively. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß die Erwärmung durch ein Heizregister (12), bestehend aus einzelnen Heizelementen (14), z. B. mit Infrarotstrahlern, erfolgt, wobei die einzelnen Heizelemente stufenweise gestaltet von der Mitte beginnend nach den Rändern der Verbundfolie hin pfeilförmig verlaufend angeordnet sind. 2. Apparatus for performing the method according to claim 1, characterized characterized in that the heating is carried out by a heating register (12) consisting of individual Heating elements (14), e.g. B. with infrared heaters, with the individual heating elements gradually designed from the middle to the edges of the composite film are arranged to run in the shape of an arrow. 3. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß als Heizquelle eine Anzahl von quer über der Folienbahn angeordneten, unterschiedlich gekrümmten sowie geraden Heizstäben (16, 16', 17, 18, 18') dient, wobei, in Arbeitsrichtung gesehen, die Heizstäbe am Anfang der Heizzone eine Krümmung zur Folie aufweisen, im mittleren Be reich der Heizzone gerade sind und am Ende der Heizzone entgegengesetzt gekrümmt sind. 3. Apparatus for performing the method according to claim 1, characterized characterized in that as a heating source a number of transversely arranged over the film web, differently curved and straight heating rods (16, 16 ', 17, 18, 18') are used, where, seen in the working direction, the heating rods have a curvature at the beginning of the heating zone have to the film, in the middle Be rich of the heating zone are straight and at the end are curved in the opposite direction to the heating zone. 4. Vorrichtung nach Anspruch 2 und 3, dadurch gekennzeichnet, daß im Heizregister (12) Zusatzheizelemente (14') eingebaut sind, die den durch seitliche Abstrahlung bedingten Wärmeverlust kompensieren. 4. Apparatus according to claim 2 and 3, characterized in that in the heating register (12) additional heating elements (14 ') are installed, which through lateral Compensate for heat loss caused by radiation. 5. Vorrichtung nach Anspruch 2 und 4, dadurch gekennzeichnet, daß dem Heizregister (12) eine mit jeweils einer Stromzeigelampe (24) für jedes Heizelement (14, 14') ausgerüstete Leuchttafel (23) zugeordnet ist, wobei die Heizelemente und zugeordnete Stromzeigelampen durch Schalter (25) ein- bzw. ausschaltbar sind. 5. Apparatus according to claim 2 and 4, characterized in that the heating register (12) one with a current indicator lamp (24) for each heating element (14, 14 ') equipped light panel (23) is assigned, the heating elements and associated current indicator lamps can be switched on and off by switch (25). 6. Vorrichtung nach Anspruch 2 bis 5, dadurch gekennzeichnet, daß das Heizregister(12) schwenkbar in einem Maschinengestell (5) gelagert ist. 6. Apparatus according to claim 2 to 5, characterized in that the heating register (12) is pivotably mounted in a machine frame (5). 7. Vorrichtung nach Anspruch 2 bis 6, dadurch gekennzeichnet, daß den Heizelementen ein Reflektor (15) mit Luftdurchtrittsschlitzen (16) zugeordnet ist. 7. Apparatus according to claim 2 to 6, characterized in that a reflector (15) with air passage slots (16) is assigned to the heating elements is.
DER31642A 1961-12-08 1961-12-08 Process and device for the production of two or more layers of reinforced or laminated plastic films Pending DE1167005B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324606A (en) 1979-12-27 1982-04-13 E. I. Du Pont De Nemours And Company Process for forming a reinforced membrane
US4402785A (en) 1979-12-27 1983-09-06 E. I. Du Pont De Nemours And Company Apparatus for making a web-supported membrane
WO2016124279A1 (en) * 2015-02-03 2016-08-11 Heraeus Nobelight Gmbh Device for irradiating a cylindrical substrate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324606A (en) 1979-12-27 1982-04-13 E. I. Du Pont De Nemours And Company Process for forming a reinforced membrane
US4402785A (en) 1979-12-27 1983-09-06 E. I. Du Pont De Nemours And Company Apparatus for making a web-supported membrane
WO2016124279A1 (en) * 2015-02-03 2016-08-11 Heraeus Nobelight Gmbh Device for irradiating a cylindrical substrate

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