EP2969513A1

EP2969513A1 - Device and method for producing composite sheets while forming a vacuum bag

Info

Publication number: EP2969513A1
Application number: EP14709698.6A
Authority: EP
Inventors: Hans Gerd Stevens
Original assignee: SM InnoTech & Co KG GmbH
Current assignee: SM InnoTech & Co KG GmbH
Priority date: 2013-03-13
Filing date: 2014-03-13
Publication date: 2016-01-20
Also published as: US10112372B2; WO2014140196A1; DE102013204338B4; US20160031202A1; DE102013204338A1

Abstract

A device for producing composite sheets, in particular laminated glass plates, is proposed, comprising: an evacuating device (1), a vacuum-tight transporting surface (16) for conveying the sheets (6, 19, 20) to be laminated into the evacuating device and for conveying the sheets out of the evacuating device, and a vacuum-tight release sheet (14) that is transported along with the transporting surface, wherein the sheets to be laminated are placed between the transporting surface and the release sheet, characterized in that a seal (5) that runs around the sheets, is transported along with them and can be released is provided on the transporting surface and/or on the release sheet and allows an evacuation of the space between the transporting surface and the release sheet and thus allows a vacuum bag (18) containing the sheets to be formed in the evacuating device. A corresponding method and a corresponding vacuum bag (18) are likewise disclosed.

Description

DEVICE AND METHOD FOR THE PRODUCTION OF COMPOSITE PLATES UNDER THE CONSTRUCTION OF A VACUUM BAG

The present invention relates to an apparatus and a method for producing composite panels, in particular laminated glass panels using a reusable vacuum bag and such a vacuum bag.

State of the art

Laminated glasses usually consist of at least two

Glass panes and a composite foil between the

Slices is placed. This structure is, for example, by means of pressure and temperature in a roll process

prelaminated and later finished in autoclave. In this process, the laminated glass must be removed from the conveyor belt and repacked into the autoclave, which is done manually. Alternatively, laminated glasses can be produced by the so-called vacuum bag method. Here, the laminated glass in a closed bag

packed, which in turn is evacuated by means of a vacuum pump. When the evacuation is finished, the evacuated bag is heated in an oven, so that the laminated glass by means of

Temperature and air pressure arises. Again, the glass plates to be joined by hand must be packed in the bags and these are transferred to the oven. After heating, it is cooled, the bags are opened and the composite panels removed. The bags are disposed of.

A disadvantage of both methods is the repackaging or

Packing the laminated glass, as this no production flow in line, that is in particular in the continuous process is possible. Furthermore, when repackaging the vacuum bags can be damaged. Even the glass plates can be damaged due to the necessary handling. Another disadvantage is that the vacuum bag process also a long Evacuation time is necessary because at the same time the atmospheric pressure squeezes the glasses and venting is more difficult with reaching the vacuum - which can also later during melting in the oven edge compressions on the edge of the glasses may arise. Finally, the non-reusable vacuum sacks are an additional burden on the environment and are associated with not inconsiderable costs (up to € 1500 per sack).

Presentation of the invention

It is therefore an object of the present invention to provide a

Device and a method for the production of

To provide composite panels, in which the composite panels can be manufactured in a continuous process (in a line) and beyond extended control options in the production are made possible, in particular the control and control of previously uncontrollable production parameters. Such a device is defined in claim 1, while a corresponding method is the subject of claim 10. The reusable vacuum bag according to the invention is the subject of claim 16.

A device according to the invention for the production of

Composite panels, in particular laminated glass panels, comprises an evacuation apparatus, a vacuum-tight

Transport surface for loading the plates to be laminated in the evacuation device and for discharging the plates from the evacuation device, and one with the

Transport surface with transported, vacuum-tight

Releasesheet, where the plates to be laminated are placed between the transport surface and the release sheet. The device according to the invention is characterized in that provided on the transport surface and / or on the release sheet surrounding the plates, mittransportierte and releasable seal or seal is provided which evacuates the space between the transport surface and release sheets and so Training at least one of the plates containing

Vacuum bags allowed in the evacuation device.

In this case, transport means means any transport device which receives the plates to be laminated and along the device, in particular through the

Evacuation device can transport, so to

Example transport plates, conveyor belts, etc. The

Transport surface can be depending on the application rigid, flexible and / or elastic, it is essential that it is configured vacuum-tight. "Seal" in the sense of the invention is not only to be understood as a separate sealant (for example a rubber frame or a applied liquid adhesive), but also a property of the transport surface or the

Releasesheets, in other words, is the

Surface of the transport surface and / or the release sheet designed so that the contacting surfaces produce the sealing effect to the outside in their mutual contact. This is the case, for example, with silicone-coated or silicone-containing materials. The seal can also either as a line seal or surface seal the

Seal, the latter being preferred because it produces a less intense pressure gradient between the interior of the vacuum bag and the environment along its "width" than line seals.

The vacuum bag is thus formed by the mediation of the seal from the transport surface and the transported release sheets. If the vacuum bag formed by evacuation of the space between the transport surface and the release sheet is now exposed to the atmospheric pressure, e.g. by aerating the

Evacuation device, so the transport surface and the release sheet are pressed together due to the existing vacuum between them and the seal reinforced. The vacuum bag thus produced can now be further processed at will, in particular, a heat input and a pressing done, and any subsequent processing steps like controlled cooling, all without ventilation of the

Vacuum bags and thus loss of the vacuum degassing the plates. Thus, in the prior art, production parameters which are difficult or impossible to access can be selectively controlled. In other words, the plates in the

Evacuating vacuum-tight enclosed and can be placed under vacuum in other production units

be encouraged; the vacuum is "transported" at the end of the processing, that is when the plate composite

Once the vacuum around the plates is completed, the gasket can be loosened and removed while the transport surface and release sheet are ready for a new process run.

This is also the essential difference for example to lamination devices such as those of the patent DE 10 2009 002 023, in which a component stack {usually several to be laminated plates and films, for example

Solar panels) between a release sheet and a feasible by the pressing chamber 2 of the laminator Anpressmembran is taken, which the stack under evacuation

For example, the chamber part above it pressed against a heated chamber wall. The vacuum bag formed here is limited to the interior of the laminator, so it can not be extended without destroying the existing vacuum around the plates.

The main economic benefits of

In accordance with the invention, the composite (e.g., laminated glass) is now in line, with no transport and

Production risks can be manufactured, since the vacuum can be maintained along the entire production line. Also eliminates the consumables

with regard to the vacuum bags to be realized, since the

Transport surface and the release sheet as well as the seal can be reused as well as the elaborate inputs and

Unpack the glass composites. The fixation of the plates (Glasses) under vacuum until the end of the process chain, ie until complete cooling, which

Process security arises.

Due to the vacuum phase in the evacuation device, for example, the PVB film lying between the plates is also dehumidified - this now no longer necessarily requires air conditioning or predrying. It

Thus, air-conditioned chambers or rooms for storage and processing of the PVB film are eliminated.

Finally, the cycle times on the production line can be shortened due to the "transported vacuum", since the production process can be reduced to areas, for example

Prelaminating, finished lamination and cooling can be divided. Due to the temperature, vacuum and pressure control in the laminator, high-quality laminated glass can be realized, for example without air pockets or edge compressions.

As a transport surface according to the present invention preferably for transport and evacuation

suitable, vacuum-tight conveyor or conveyor belt

be used, in particular a circulating endless belt or unwound from a roll and again

wrapped band. The latter can be used as a disposable band

be configured or be a reusable tape, the

preferably after the process can be cleaned.

Such conveyor belts often consist of band segments which are connected to tow bars. The tow bars are located during the evacuation or lamination outside the respective chamber. The release sheet can also be provided as an endless belt or from the roll, or only as a "discrete", with the transport surface transported along the upper vacuum bag boundary of appropriate size (in particular all overlapping plates must be covered become) . The release sheet is preferably made of temperature-resistant, elastic material.

In a variant, it is conceivable to place the gasket around a stack of plates (for example two glass plates with interposed PVB film to be combined into a laminated glass) or to place them around several stacks. That way that can

Production risk can be varied.

For the evacuation, it is conceivable that

Close evacuation device airtight and to evacuate the chamber thus formed. In this way, the conveyed on the transport surface plates can be degassed and dehumidified. In another possible

Embodiment, the evacuation device comprises a lance, by means of which the space between the transport surface and release sheet can be evacuated. For example, a valve may be provided on a suitably formed gasket, for example, a sealing frame placed between the transport surface and the release sheet, to which the lance docks so as to intervene between the release sheet and

Transport area evacuated. So can the

Evacuation be designed particularly simple.

Preferably, the evacuation device is a

Lamination device with a closable, evacuated and ventilated vacuum chamber that has a (vacuum-tight)

Press membrane comprises, which is designed so that it can be placed on the vacuum bag and this can further seal, preferably by pressing. For example, the press membrane settles on the release sheet and presses the vacuum bag against the lower chamber wall. So can through

Control the pressure between the vacuum-tight

Anpressmembran and the (in the example upper) chamber wall, the membrane is placed or pressed onto the vacuum bag be that the sealing effect of the seal is improved, and thus a particularly stably sealed vacuum bag is generated. In addition, such vacuum bags can now be formed, the plates very high

stacked up and so usually one

To seal / seal the bag along the seal. Instead of a press membrane whose advantage is the adaptation to different surface geometries, a press die is also conceivable, which has a contour adapted to the respective pressed material. such

Lamination devices with a pressing tool (press membrane, press punches, etc.) can after or in addition to the

Caulking also directly for lamination - for example of cold-curing two-component composites such as

Plexiglas panes - used, for example, where the two-component system is kept under pressure for 10-15 minutes.

Particularly preferably, the mentioned comprises

Lamination further at least one hot plate, whereby the laminator is now also suitable for thermally crosslinking or to be compressed composite materials. With this configuration, it is thus possible to achieve not only the degassing of the plates or the composite film and the formation of the vacuum bag by the vacuum chamber is evacuated, but also simultaneously or subsequently by pressure-controlled pressing the vacuum bag located in the plates to the heating plate lamination cause the plates and thus the formation of the plate composite

continue. For this purpose, the pressing pressure and temperature can be suitably controlled, for example, not to reduce the edges of the plates gualitätsmindernd. Appropriately, the vacuum chamber (press chamber) through the Anpressmembran in two chamber areas for such a regulation

subdivided, which can each be selectively pressurized (evacuated / ventilated). In a low-cost embodiment, the seal comprises a sealing frame applied to the release sheet, which is suitable for sealing the release sheet against the transport surface by its own weight. This is omitted for

Example of the use of a liquid or pasty

Sealant designed for single use as a seal, which saves costs. Since the plates in the so

formed vacuum bag but continue to rest on the transport surface, they can continue while maintaining the vacuum in the bag, that is, with the previously generated pressure and / or temperature parameters and thus under the optimal degassing conditions, with the transport surface

transported along and supplied to subsequent process stations.

In a preferred embodiment, the seal is used as a sealant between the transport surface and the release sheet

intended. The advantage of this configuration is that the sealing capabilities are influenced by the choice of seal, which at the same time on the surface of the

Transport surface and the release sheet must lie sealingly, and thus in terms of the seal to be achieved a greater choice of materials (or material parameters) for the transport surface and the release sheet available to the seal the expected loads (due to the vacuum or additional mechanical loads generated by subsequent machining). The seal can be selected, for example, from: a coatable butyl sealant, a coatable

Silicone sealant, in particular two-component systems such as addition-crosslinking RTV-2 silicone rubbers,

Fluoroelastomers such as FKM / FPM, EPDM, silicone, rubber, a UV-curable sealant, a reusable adhesive, a disposable adhesive tape, a mechanically coupled seal, a labyrinth seal or a sealing tape. Also, the seal can be provided as a sealing frame between the release sheet and transport surface, as already mentioned in connection with the lance.

Preferably, the device upstream of the evacuation device comprises an application station for applying the seal to the transport surface and / or the

Release Sheet. By providing such a station, the seal can be optimally adapted to the arrangement of the on the

Adjusted transport surface resting plates and possibly their position can be corrected before the formation of the airbag takes place in the evacuation device.

According to an alternative embodiment, the seal is part of the surface of the transport surface and / or the release sheet, so that when they contact each other, the contacting surfaces produce the sealing effect to the outside. Examples of suitable materials for the

Transport surface or the release sheet are fluoroelastomers (FKM / FPM), EPDM, silicone, rubber. Furthermore, the seal is conceivable as a sealing profile or adhesive surface on the

Surface of the transport surface and / or the release sheet provide.

In a further embodiment, the transport surface comprises a vacuum-tight, by the evacuation device

entrained and removable support plate for supporting the plates. This is especially true for such

Machining operations beneficial where increased

mechanical action is provided on the plates or the vacuum bag, in particular for very large weights of the pressed material and in cases where the vacuum bag is to be removed from the machine.

Alternatively, the transport surface can be a circulating

Be conveyor belt and entrained by the evacuation device, encompassing sheets. Very heavy Composites can thus be produced cost-effectively "on the assembly line." Such metal sheets can also be shaped or curved in order to cope with special surface geometries (curvatures), for example in the production of laminated glass for motor vehicles (automotive glass).

According to a second aspect, the invention provides a method for producing composite panels, in particular

Laminated glass panes, ready, comprising the following steps: inserting the plates between a vacuum-tight transport surface and a running with this,

vacuum-tight release sheet; Providing a circulating around the plates, mittransportierten and releasable seal on the transport surface and / or on the release sheet; Evacuate the space between transport area and releasesheet and

Forming a vacuum bag containing the plates.

By inserting are meant also those steps in which the plates are first placed on the transport surface and then covered with the release sheet. The provision of the seal can be done before, during or after placing the plates, but in any case before covering with the

Release Sheet. It is also conceivable that the seal is permanently provided on the transport surface or on the release sheet. The vacuum bag is thus formed by the mediation of the seal from the transport surface and the transported release sheets. Through this procedure, those already in

Connection with the device according to the invention

described advantages are achieved, in particular

with regard to any further processing (heat input and / or compression), also with regard to downstream stations (controlled cooling), all without aeration of the vacuum bag and thus loss of the vacuum degassing the plates.

Particularly preferably, the method comprises the step of sealing the vacuum bag, in particular by means of a Press membrane, which is placed in the course or after evacuation on the vacuum bag. As related to the

Mentioned device according to the invention may also be a press die or a general instead of a press membrane

Pressing tool can be used, which / which has a contour adapted to the respective pressed material. This

Method is thus suitable for lamination - for example, cold-curing two-component compounds such as

Plexiglas panes, for example, where the two-component system is held under pressure for 10-15 minutes.

After completion of the plate assembly, the seal can be solved and optionally removed while

Transport area and release sheets are ready for a new process run. Due to the reusability of the vacuum bag forming materials (transport surface,

Release sheet and seal) can be saved a significant cost in the production of the plate composite.

Between the plates, a foil of e.g. PVB or other lamination films inserted. However, it is also possible to use other laminating agents in principle, which may also be part of the plates. As plates, for example, glass plates for the production of laminated glass into consideration, but also components of

Solar cells for forming solar modules or displays made of plastic discs.

Preferably, the method comprises the further step of heating the plates located in the vacuum bag. In this case, on the one hand heating during evacuation can be used, whereby the degassing and dehumidification of the plates can be supported. On the other hand, in addition to the evacuation downstream heating can be used to achieve the lamination temperature. In a particularly preferred embodiment, when evacuating the space between the transport surface and

Releasesheet measured the humidity of the evacuated air and, depending on this, regulated the duration of the evacuation. Since the composite films often different

Moisture levels, for example due to

different storage, allows the measurement of

Moisture the determination of residual moisture in the

Laminated film and avoids excessive dehydration during evacuation.

Also, the method according to the present invention preferably further steps such as pressing the plates in the vacuum bag, with or without heat, the subsequent controlled cooling, preferably in a cooling station, or an overpressure treatment, for example in a

include hydraulic pressure station. By this of the formation of the vacuum bag in separate stations

feasible steps can be achieved more efficient timing and thus the overall cycle time can be shortened, while extremely cost-effective, because reusable

Vacuum bags are used.

Brief description of the drawings

Figure 1 shows a schematic sectional view of a first embodiment of the invention with a laminator located in different steps, wherein in Figure la) the evacuation of the space between the conveyor belt and release sheet for forming the vacuum bag and the compression of the vacuum bag located in the plates is shown, and in FIG lb) additionally conveying glass plates on a conveyor belt into the laminator, and opening the vacuum bag and feeding the composite thus produced out of the laminator; FIG. 2 shows a detailed view of the embodiment of FIG

Vacuum bags, left before evacuation, right thereafter, also in section, with Fig. 2a) an embodiment with interposed seal and Fig. 2b) an embodiment with an applied

Sealing frame shows;

FIG. 3 shows a plan view of the arrangement of FIG

Glass plates, seal and conveyor belt or

Transport plate according to another embodiment of the invention;

Figure 4 shows an embodiment with molded

Transport plates for the production of composite car glass panes, wherein different phases of processing are shown side by side;

FIG. 5 shows a detail view of the laminator from FIG

4; and

FIG. 6 shows a top view of the laminator chamber of FIG

FIG. 5.

Ways to carry out the invention

In Figure la) and 2a) is a schematic lateral

Sectional view of an embodiment of the device or the method for producing composite panels shown. In this example, glass plates are used as plates

interposed PVB film used (Fig. 2a), the

Laminated glass should be pressed. In Figures la) and 1b) is shown as an evacuation device, a laminator 1, which defines a vacuum chamber 2 (press chamber) between its upper wall 7 and its heated lower wall 10. The vacuum chamber 2 further comprises a

(vacuum-tight) Anpressmembran 4 and is at the edge of Laminators sealed by a Kanunerdichtung 12 against the environment. Through the vacuum chamber 2 is called

Transport surface a conveyor belt 16 out, which is designed here as a roller 11 circulating endless belt. In addition, a release belt 14 is also guided through the vacuum chamber 2 of the laminator 1 as an endless belt which revolves around a roller 13.

As can be seen on the left side of FIG. 1b) (phase I), glass plates 6 (19, 20) with interposed PVB composite film 21 are placed on the conveyor belt 16 before entering the laminator, which subsequently (phase IIa) has an am Releasedheet silicone seal 5 are surrounded on all sides. As further shown in FIG. 1b), the seals 5 are arranged on the release sheet 14 at regular intervals. The silicone gaskets 5 are fixedly attached to the release sheet in this embodiment. They are self-adhesive, i. they adhere without further measures by contact on the conveyor belt 16 and are detachable from this again. The not yet laminated

Laminated glass plates 6 are conveyed into the pressure-controllable laminator 1 and initially heated in phase IIa after closing here and evacuated to a certain pressure, for example, the escape of moisture from the composite PVB film 21, but avoids the evaporation of the plasticizer.

As more detailed in Figures 2a) and 2b) (in the left

Half of the figures is in each case the state before evacuation, in the right half shown after evacuation) is shown, is located under the laminated glass 6 (glass plates 19 and 20), a vacuum-tight conveyor belt 16 and above

Laminated glass 6 (19, 20) a mittransportiertes, running, vacuum-tight Releasesheet 14, which now form an airtight vacuum bag 18 during evacuation through the intermediary of self-adhesive silicone gasket. In the process, the pressure membrane 4 in the laminator 1 drops to the release sheet 14 and thus promotes the formation of the vacuum bag (Figure lb, phase IIa). That is, the glass composite 6 (19, 20, 21) now between the release sheet 14 and the conveyor belt 16th

is enclosed in a vacuum-tight manner. FIG. 2 a) shows the case of a seal 5 inserted between release sheet 14 and conveyor belt 16, while FIG. 2 b) shows the case with a sealing frame 15 placed on the release sheet 14. The seal is formed here by surface pressure between the release sheet 14 and conveyor belt 16.

In Figure 3 is shown as an alternative embodiment of the case in which a plurality of glass composites 6 on a than

Support plate 16 designed transport surface surrounded by acting as a surface seal seal 5 and are thus vacuum-sealed together in the vacuum bag 18.

Once the evacuation process parameters have been achieved, Phase IIb will now be completed

pressure-controlled compression (not necessarily with the full atmospheric pressure) with the membrane 4 of the laminator

Lamination of the two glasses 19, 20 of the stack 6 instead. In this case, the pressing pressure and the temperature of the heating plate 10 (integrated in the chamber wall) are regulated so that the

Edges of the glass are not compressed together to reduce quality. A freely selectable pressure of the diaphragm 4 can be realized because the laminator a pressure-resistant

Has total housing, but divided by the membrane 4 in accordance with two vacuum chamber parts 8, 9, divided (see Figure la).

After pressing, the chamber 2 of the laminator for conveying out the laminated glass is ventilated (Phase III), without the composite 6 of the glasses 19, 20 is ventilated itself. The now standing from the outside under atmospheric pressure vacuum bag is discharged from the laminator 1 and can now

for example, while maintaining the vacuum in the bag 18 controlled to cool the ambient air, so that there is no danger that the glass composite 6 due to still insufficient adhesive strength dissolves prematurely in the edge area. Alternatively, the glasses 19, 20 or the resulting glass composite 6 'to shorten the production cycle in a further oven further heated or in a separate

Cooling station to be cooled down specifically.

It is essential that the still unfinished plate stack 6 in under selectable pressure conditions in the vacuum bag 18th

is vacuum sealed and continues in this

edited, in particular pressed, and in more

Production units can be promoted. Thus, the still unfinished composite 6 can be "transported along" its vacuum. At the end of the production chain (at the end of phase III), the seal 5 is then released from the conveyor belt 16, for example by deflecting the conveyor belt 16 and the conveyor belt 16 as shown

Releasesheets 14 on roles, and so opened the vacuum bag 18 and the now finished laminated glass 6 'released.

FIG. 4 describes an embodiment which

can be used for example in the car glass manufacturing application. Here, a suitably shaped backing plate 30 is provided on the transport surface, here a conveyor belt 16, upon which the formed glasses 6 (i.e., a lamination of individual molded glasses and composite sheets) are laid and subsequently covered with the release sheet 14. As in the embodiment described in FIGS. 1 a and 1 b), the glasses thus inserted are placed in a laminator 1

evacuated, they formed a vacuum bag 18 formed and compressed in the bag 18 composite 6 is pressed. As shown here only in the course of an example, the composite 6 can subsequently be heated in a further furnace 1 '(circulating air oven), and finally cooled in a controlled cooling station 1 ".

Finally, FIG. 5 shows a further embodiment in which in the laminator 100 a lower pressure membrane 23 arranged below the transport surface 16 (in this case a conveyor belt) and an upper one above the release sheet 14 are arranged Anpressmembran 24 are provided. Both the

Anpressmembranen 23, 24 and conveyor belt 16 and

Releasesheet 14 are flexibly configured to conform to the shape of curved glass sheets 6 to be laminated. The release sheet 14 and the conveyor belt 16 are also coated with silicone to contact at

To form the seal. First, as described above, the space between the conveyor belt 16 and the release sheet 14 is evacuated, the glass sheets 6 are degassed, and the vacuum bag 18 is formed. FIG. 6 also shows, for purposes of understanding, a top view of the lamination apparatus 100, from which it can be seen that contact of the release sheet 14 and the release sheet 16 of FIG

Conveyor belts 16 forms a seal 5 around the glass sheets 6 due to the vacuum formed between them. The membranes 23 and 24 also surround the glass sheets 6 and are wider than the release sheet 14 and the conveyor belt 16, so that the membranes can effectively support the sealing of the vacuum bag by applying them thereto.

Subsequently, the space 28 between the upper chamber wall 27 and upper Anpressmembran 24 and between the lower chamber wall 20 and lower Anpressmembran 23 selectively with pressure

acted upon and pressed the glass sheets 6 between the membranes 23, 24. By adapting the membranes and the conveyor belt and release sheets to the shape of the glasses 6, a very uniform and thus optimal compression can take place, which considerably increases the quality of the laminated glass. Thus, it is also possible to manufacture laminated glass panes for the demanding requirements of the automobile industry using the method according to the invention described here. Again, as already explained, by dividing into individual sub-steps clock shortening possible.

The method described and the associated device can also be used for clock reduction in the production of glass-glass solar modules. Again, in conventional manufacturing processes basically the Danger that the solar modules after laminating and when feeding in the downstream cooling press on the edge

"Gape" or open and be re-joined in the cooling press - but often joint defects remain visible

Split partial production steps, e.g. Prelaminating (e.g., in an evacuation apparatus), laminating (e.g., in a laminator), cooling (e.g., in a cooling station) - all under vacuum. Other composite materials such as EVA, FEVA, and in particular thermoplastic composite films such as silicones, TPüs, ionomers, etc. can be processed without risk.

Claims

claims

1. apparatus for producing composite panels,

in particular laminated glass panes, comprising:

an evacuation device (1),

a vacuum-tight transport surface (16) for conveying the plates to be laminated (6, 19, 20) in the

Evacuation device and for discharging the plates from the evacuation device, and

a transported with the transport surface,

Vacuum-tight release sheet (14),

wherein the plates to be laminated between the

Transport surface and the release sheet are laid,

characterized in that

on the transport surface and / or on the release sheet a circulating around the plates, mittransportierte and detachable

Seal (5) is provided, which is an evacuation of the space between the transport surface and release sheets and so on

Forming a vacuum bag containing the plates (18) allowed in the evacuation device.

2. Device according to claim 1, wherein the

Evacuation device comprises a lance, by means of which the space between the transport surface and the release sheet can be evacuated.

3. Apparatus according to claim 1 or 2, wherein the

Evacuation device is a lamination device (1) with a closable, evacuated and ventilated vacuum chamber (2), which comprises a press membrane (4), which

is configured so that it lays on the vacuum bag (18) and this preferably further seals by pressing.

4. Apparatus according to claim 1, 2 or 3, wherein the

Seal (5) one launched on the release sheet

Sealing frame (15), which is suitable to be by Dead weight to press the release sheet (14) on the transport surface (16) and thereby seal the vacuum bag (18).

5. Device according to one of the preceding claims, wherein the seal (5) as a sealant between

Transport surface (16) and release sheets (14) is provided.

6. Device according to one of the preceding claims, wherein the seal (5) is selected from: a coatable butyl or silicone sealant, a sealing tape, a reusable adhesive, a disposable adhesive tape, a UV-crosslinking sealant, a mechanically coupled

Seal, a labyrinth seal.

7. Device according to one of the preceding claims, wherein the seal (5) is part of the surface of the transport surface (16) and / or the release sheet (14), so that in their mutual contact, the contacting surfaces of the

Create sealing effect to the outside, or is provided as a sealing profile or adhesive surface on the surface of the transport surface and / or the release sheet.

8. Device according to one of the preceding claims, wherein the transport surface is a vacuum-tight, through the

Evacuation device entrained support plate (30) for supporting the plates comprises.

9. Device according to one of the preceding claims, wherein the transport surface is a circulating conveyor belt and a entrained by the evacuation device, circumferential plate (30).

10. Method for producing composite panels,

in particular laminated glass panes, comprising the following steps: Inserting the plates (6, 19, 20) between one

vacuum-tight transport surface (16) and one with this

revolving, vacuum-tight release sheet (14),

Providing an encircling around the plates,

mittransportierten and detachable seal (5) at the

Transport area and / or on the release sheet,

Evacuate the space between the transport area and

Releasesheet and forming a vacuum bag (18) containing the plates.

11. The method of claim 10, further comprising the step of sealing the vacuum bag, in particular by means of a press membrane, which is placed on the vacuum bag.

12. The method according to claim 10 or 11, wherein after the

Forming the plate assembly (6 '), the seal (5) is released and the transport surface (16) and the transported Releasesheet (14) for the process for the production of composite panels

be reused.

13. The method of claim 10, 11 or 12, further comprising the further step of heating the in the vacuum bag (18) located plates (6).

14. The method according to any one of claims 10 to 13, further comprising the step of pressing the plates (6) in the vacuum bag (18), with or without heat.

15. The method according to any one of claims 10 to 14, wherein when evacuating the space between the transport surface (16) and release sheets (14) measured the humidity of the evacuated air and depending on the duration of the evacuation and / or the vacuum pressure is controlled.

16. Vacuum bag (18) for producing a plate composite (6 '), wherein the vacuum bag from a through Processing devices (1, 1 ', 1'') conveyable in the transport surface (16) and a so

with transported release sheet (14),

characterized in that

an entrained and detachable seal (5) is provided on the transport surface and / or on the release sheet.