EP1868802A2

EP1868802A2 - Device and method for coating a metallic support material

Info

Publication number: EP1868802A2
Application number: EP06705823A
Authority: EP
Inventors: Peter Bartsch
Original assignee: Billhoefer Maschinenfabrik & Co KG GmbH; BILLHOFER MASCHF GmbH; Billhofer Maschinenfabrik & Co KG GmbH
Current assignee: VVIKO HOLDING GmbH
Priority date: 2005-04-01
Filing date: 2006-01-19
Publication date: 2007-12-26
Also published as: CN101155691A; TW200640681A; BRPI0609619A2; US20080314512A1; DE102005015295A1; WO2006102858A3; KR20070114742A; WO2006102858A2; JP2008537912A

Abstract

The invention relates to a device for coating a metallic support material with a strip-like coating material, comprising a feed arrangement (4), to introduce the support material to a coating station and a coating roller (7), cooperating with a counter-pressure roller (8) in order to glue the metallic support material and the strip-like coating material together by application of pressure forces with an adhesive.

Description

Δ

Apparatus and method for coating a metallic substrate

The invention relates to a device and a method for coating a metallic carrier material with a sheet-like coating material.

For the coating of metallic carrier materials, for example metal plates, with a coating material in order to optically or haptically change the surface of the metal plates on one or both sides, different devices and methods are known. For example, lacquers or printing inks which are UV-reactive or solvent-containing are used in the production of lacquered or printed metal panels. In the manufacture of metal packaging, such as screw caps for glasses or bottles, crown corks, technical cans, food and aerosol cans, and a variety of other products made of painted and printed metal, such as toys or decorative moldings, etc., environmental problems are playing an increasingly important role. These problems are caused on the one hand by the solvents contained in the paints and printing inks, in other applications, the required food compatibility leads to particularly complex devices.

In conventional methods, one side of a metal panel is painted with a basecoat for later printing in a first operation, wherein the drying of solvent-based paints takes place thermally by means of technically very complex, large-volume and high-investment drying ovens. In such systems, the energy expenditure is particularly high, in addition, high investments are required. The metal panels are usually transported almost vertically standing, then takes place in a separate second, also very complex operation, the so-called protective coating on the other side of the metal panel. In a third, likewise elaborate, separate operation, the one-sided printing of the metal panels takes place, followed by complex thermal drying. A protective or high-gloss finish, which is applied to the printing ink, requires a further separate process step with comparatively high outlay as in the case of the basecoat. The use of UV-reactive paints and paints, which is likewise customary in the prior art, requires similar process steps, the drying of the paints and printing inks being carried out by means of UV irradiation of the metal panels, which entails very complex and high investment costs.

An increasing problem in the processing of solvent-borne paints and printing inks is the emission of volatile organic compounds, as increased costs arise to comply with the increasingly production-limiting emission regulations. In addition, conventional paint shops are characterized by a high space requirement.

The invention is therefore based on the problem of providing a device for coating a metallic carrier material with a sheet-like coating material, which has a simpler structure and enables an environmentally friendly coating.

To solve this problem, a device of the type mentioned in the invention is provided according to the invention that it has a feed device to supply the carrier material to a coating station and a cooperating with a counter-roller coating roller to the metallic carrier material and the sheet-like coating material under application of compressive forces by means of an adhesive to stick together.

Unlike conventional devices, the metallic Trägerma- materials are connected with an adhesive with the printed or unprinted coating material, accordingly, can be completely dispensed with solvent-based paints and printing inks. The device according to the invention has a comparatively simple structure, since elaborate painting or printing systems can be omitted, which usually cause high costs and have a high energy consumption.

The device according to the invention is particularly suitable for coating tabular support materials, in particular in the rectangular and Formatzuschnitt, z. B. Scroll panels, suitable, wherein scroll panels in the scroll cutting toothing can be coated butting or underlapped or lying overlapping. Adjacent scroll panels preferably have complementary, adjoining shape-cut sides. These carrier materials can be fed to the device in the form of staples, the carrier materials can be separated by means of a destacking device and transported in succession through the various processing stations of the device according to the invention. The support materials have typical basis weights of 800 to 3,000 g / m ² .

Preferably, the device according to the invention has an alignment station for aligning the tabular support materials. By the alignment station, the carrier materials in the direction of movement, that are aligned in the longitudinal direction and / or in the lateral direction. As a result, an accurate application of the coating material is achieved in all cases, even if the stacked carrier materials are not exactly at the intended position.

According to an advantageous development of the device according to the invention, the carrier materials can be undercut by the aligning station or overshadowed with an adjustable underlap or overlap dimension. Alternatively, the backing materials may be aligned by the alignment station butt to joint or at an adjustable distance.

In the device according to the invention, a slot nozzle may be provided for applying the adhesive. This slot nozzle can be omitted in other embodiments if the carrier material and / or the coating material is or are already provided with an adhesive. In this case, the pre-applied adhesive may be thermally activated or reactivated.

It is expedient if the quantity and / or the width of the adhesive to be applied through the slot nozzle is adjustable. Thus, the adhesive application can be tailored exactly to the carrier materials and coating materials used. In the device according to the invention, the adhesive can be applied by contact or non-contact methods.

The device according to the invention is particularly suitable for processing thermoplastic or reactive hotmelt adhesives.

In the apparatus according to the invention, the coating material in the region of the slot nozzle can be guided via a non-driven roller and with the adhesive-coated side over a driven release roller. The release roller acts as a withdrawal calender for the sheet-like coating material and can be heated or cooled. In addition, the surface of this release roller may have a non-stick coating. The release roller is looped under the control of the adhesive-coated side of the coating material and releases it with tension controlled by web tension for the feed to the subsequent coating roller.

It is also within the scope of the invention that the device has one or more tempering devices acting on the coating material and / or on the underside and / or the upper side of the carrier material in order to heat the materials to a specific process temperature.

A particularly large application range results in the device according to the invention, when the counter-pressure roller is pressure-adjustable. It is particularly useful if the counter-pressure roller has a rubberized surface or a non-stick coating.

It can be provided that the device has a transport device arranged behind the coating station in the direction of movement for the web-shaped coated carrier material. It is particularly preferred that the transport device has a suction belt, by means of which a particularly good hold of the carrier materials is ensured. As a further option, the device according to the invention may have a UV irradiation device for irradiating radiation-crosslinking reactive adhesives. The UV irradiation takes place after the bonding and pressing of the metallic carrier material with the sheet-like coating material.

In order to separate the tabular carrier materials again after the coating, a device for separating can be provided, furthermore the separated carrier materials can be transported through a transport device having a suction belt, wherein it is particularly expedient for the carrier materials to be transported to a stacking device, which is suitable for high stack weights, which can be up to 3,500 kg.

The device according to the invention can have a register control for accurately fitting the coating material onto the carrier material. The register control detects electronically readable identification marks which are applied to the coating material in order to apply the coating material exactly to the carrier material. Alternatively or additionally, an edge of the carrier material can also be detected by the register control. The feed of the metallic carrier materials is simultaneously controlled adapted thereto.

In a further embodiment of the invention, it can be provided that coating-like coating materials are applied to the metallic support material on both sides in the coating station. For this purpose, a second slot nozzle may be provided, but it is also possible that an activation station is provided, by means of which the coating material can be thermally activated at least on one side of the carrier material.

The device according to the invention may have a cutting station for the coating material, which is arranged in the direction of movement in front of the coating station. With this coating station, the coating material can be trimmed laterally or cutouts can be made in the longitudinal direction before the coating material reaches the coating station.

In addition, the device according to the invention can have a removal station for the coating material arranged in the direction of movement behind the coating station. In this way, a broad path of the coating material can be cut to the contour of a narrower or individually shaped metallic carrier material.

In a further embodiment of the invention, a cutting station arranged in the direction of movement behind the device for separating can be provided in order to cut the front and / or rear edge of coated carrier materials. This cutting station can be used when the metallic support materials are produced shock to shock with a certain distance between see the individual carriers. The cutting station can for this purpose have knives and / or a laser.

As an alternative to the processing of metallic tabular support materials, the device according to the invention may also be designed such that it is suitable for coating metallic support materials in web form. In this case, web-shaped metallic carrier materials are used in the form of coils, which are provided with the coating material and then wound up again in a winding device on a spool. Alternatively, however, the web-shaped carrier materials can also be separated in a cutting device so that they leave the device according to the invention as coated tabular carrier materials. This cutting station can have knives and / or lasers. The laser is able to produce cuts with any contour shape, in particular the laser is suitable for scroll panel contour cuts.

It is particularly preferred that the device is suitable for the coating materials, film, textile, paper or leather. These coating materials can be used in printed or unprinted form. In addition, the invention relates to a method for coating a metallic carrier material. In the method according to the invention, it is provided that the carrier material is fed by means of a feed device to a coating station, in which it passes through a gap formed between a counterpressure roller and a coating roller and under the action of the compressive forces generated by the rollers by means of an adhesive the web-shaped coating material is glued.

Further embodiments of the invention will become apparent from the dependent claims.

Further advantages and details of the invention will be explained with reference to embodiments with reference to the figures. The figures are schematic representations and show:

1 shows a first embodiment of a device according to the invention for coating a metallic carrier material.

FIG. 2 shows a second embodiment of a device according to the invention; FIG.

Fig. 3 shows a third embodiment of the invention; and

Fig. 4 two formed as scroll panels support materials.

The ^{^} shown in FIG. 1, device 1 is suitable for the coating of carrier materials, which are formed as metal plates and consist of aluminum or tinplate. Tinplate panels can be galvanized, tinned or chrome plated. Of course, can be processed with the device 1 also consisting of other alloys metal panels. Typical sheet thicknesses are 0.1 - 0.5 mm. The metal panels 2 are stacked horizontally in a destacking apparatus 3 and are fed to the apparatus 1. As part of the coating process, the metal panels 2 are transported substantially horizontally through the device 1, in the view shown in Fig. 1, the metal panels 2 are transported from right to left. The transport of the Metaljtafeln 2 is effected by a feed device 4, which has a suction belt through which the metal plates 2 are transported in succession. The unstacking of the metal panels 2 is intermittent, each with the top metal plate removed with a suction head and the stack is raised accordingly. The transport of the individual metal panels 2 is carried out either abutment, wherein a certain distance can be provided between the individual metal panels, alternatively, the metal panels can be transported in the form of an overlapped or underlapped scale flow over the suction belt.

An alignment station, not shown in FIG. 1, controls each metal panel in a controlled manner, that is to say it is positioned laterally and longitudinally, so that either identical distances exist between individual metal panels or an identical overlap or overlap exists.

In certain embodiments, a device may be provided which alters the scale flow in the region of the overlap by raising the trailing panel and lowering it onto the leading panel into a sublap.

Subsequent to the feeding device 4, the metal sheets are fed to a cleaning station 5. The cleaning station 5 has draw-in rollers and is designed so that one or both sides of the metal panels are cleaned. The cleaning can be carried out mechanically, for example by brushing, thermally, for example by IR radiation or also chemically, for example by means of liquid cleaning agents. Alternatively, the cleaning can be carried out by radiation treatment by corona treatment. By this cleaning process possibly existing production-related residues should be removed on the surfaces of the metal sheets. Through the use of corona treatment is simultaneously the Surface tension of the metal panels increased to the level required for optimum adhesive adhesion.

Subsequent to the cleaning station 5, the cleaned metal panels reach an alignment station 6, which aligns the individual panels so that the panels enter the gap between a coating roller 7 and a counterpressure roller 8 in a defined manner. In this way, the individual panels are exactly aligned with the coating material. The panels are accurately aligned with respect to the leading edge and a side edge, while realizing an adjustable amount of overlap or underlap dimension, or a push-to-push dimension. The overlap or overlap can be 1 to 15 mm, the butt-to-joint dimension can be 0 to 15 mm.

The coating material 9 formed as a film in this embodiment is present as a roll and is located on a pivotable for the purpose of loading the tensioning shaft 10. The web guide of the brake-controlled or driven coating material 9 via various rollers into the coating gap, by the coating roller 7 and the Counterpressure roller 8 is formed.

The application of the adhesive to the coating material 9 via a slot nozzle 11. Such slot nozzles are known per se and comprise an adhesive tank with melting device, heated inlet and return hoses, a nozzle pre-chamber with metering pumps, the actual slot nozzle with segments and an application lip with a Application width adjustment and control electronics.

With the slot nozzle 11 adhesive application amounts of about 0.5 to 20 g / m ² can be realized at a typical adhesive temperature of about 80 to 200 ⁰ C. Depending on the setting of the distance and the tilt angle of the die lip to the coating material, the application of the adhesive takes place either in direct contact of the die lip with the coating material (contact method) or at a distance of about 1 to 5 mm from the coating material. terial (non-contact method), wherein at these settings one of the set application width corresponding closed adhesive film is completely or partially released from the nozzle lip on the coating material and adopted by this.

Suitable adhesives are thermoplastic or reactive hot melt adhesives.

The hot melt adhesives used are selected depending on the substrates to be bonded and the related requirements, for example, a required temperature or heat resistance of the bond, etc.

As purely thermoplastic hot-melt adhesives, in particular those based on ethylene-Λ / inylacetaten (EVA), polyolefins (eg amorphous poly-α-olefins, metallocene-catalyzed polyolefins), polyacrylates, copolyamides, copolyesters and / or thermoplastic polyurethanes or corresponding co- and / or terpolymers are used.

Reactive, for example, moisture-crosslinking hotmelt adhesives are, in particular, those based on silane-grafted amorphous poly-α-olefins or isocyanate-terminated polyurethanes. In the case of reactive hotmelt adhesives, the subsequent crosslinking with moisture leads to temperature-resistant or heat-resistant adhesions. Reactive hot melt adhesives thus combine the advantages of rapid onset strength by the physical setting of cooling with subsequent chemical crosslinking. When processing moisture-reactive hot-melt adhesives, the melt must be protected from moisture before being applied.

For example, hot melt adhesives based on silane-grafted polyolefins can be used for lamination of metal sheets or metal sheets with OPP films (oriented polypropylene film) or PET films (polyester films) in back-printed or unprinted form in combination with high temperature resistance of the composite. Keitsvernetzende polymers suitable in the present invention, moisture-reactive hot-melt adhesives are, for example commercially available under the product name "Vestoplast ^® 206" from Degussa AG, Mari, Germany, available silane-modified poly-α-olefins.

Other suitable reactive hot melt adhesives include radiation crosslinking reactive adhesives (eg, reactive hot melt adhesives which crosslink under UV irradiation).

The application of the adhesive can be carried out in wide temperature ranges. In general, processing temperatures in the range of 80 ⁰ C to 200 ⁰ C are selected.

In order to achieve a good applicability of the hot melt adhesive, such hot melt adhesives are generally used, which at the processing temperatures, generally 80 ⁰ C to 200 ⁰ C, Brookfield viscosities in the range of generally 50 to 1,000,000 mPa-s ,

For example, can preferably reactive hot melt adhesives based on silane-grafted polyolefins, in particular solangepfropften amorphous poly-α- olefins used, which at 180 ⁰ C Brookfield viscosities ranging from 50 to 50,000 mPa-s, especially 1,000 to 10,000 mPa.s. , preferably 5,000 to 8,000 mPa.s, most preferably 5,500 to 7,500 mPa.s.

In order to control the reactivity and the crosslinking behavior, the reactive hot-melt adhesives are generally added to the customary catalysts, such. As dibutyltin laurate (DBTL), and this in the usual amounts for this purpose.

To control the open time and / or the adhesion properties of the abovementioned hotmelt adhesives, in particular also with regard to improved handleability, the abovementioned hotmelt adhesives may also contain additives. In particular, non-reactive polymers (eg unmodified amorphous poly-α-olefins), non-reactive resins (eg hydrocarbon resins) and / or non-reactive waxes may be added. In this way, the adhesive properties can be adjusted application-related and tailor-made, so to speak.

As a coating material 9, different materials are conceivable, for example textile, paper or leather, preferably the coating material is a plastic film having a material thickness of about 5 to 250 μm, more preferably the thickness of the film is 10 to 25 μm.

Below the nozzle lip of the slot nozzle 11, a pair of rollers is arranged, through the gap, the coating material is pulled, at the same time the application of the adhesive takes place. This pair of rollers also acts as a trigger calender and consists of a first, non-driven pressure-adjustable roller 12 and a second, non-stick coated heatable and coolable release roller 13. The release roller 13 is operated with a lead of about 3 to 10% to the coating roller 7 and is with a connected controllable drive. The adhesive-coated side of the sheet-like coating material 9 wraps around the release roller 13 up to a sensor-settable discharge point, after which the web tension of the coating material 9 after leaving the release roller 13 into the gap formed between the coating roller 7 and the counter-pressure roller 8, depending on the type and the strength of the coating material 9 is adjustable so that the coating material 9 stretching or deforming tensile stress is avoided. This is particularly important in the accurately fitting coating of metal panels, for example, when a printed image is on the formed as a film coating material.

The adhesive-coated web-shaped coating material 9 wraps around the coating roller 7 largely on its path according to the web and is cooled or heated by the coating roller 7 depending on the type of adhesive used and the subsequent processing temperature of the adhesive. If a coating material is used which is already provided with a thermally reactivatable adhesive suitable coating, this coating material is passed through the device in the same way, but it eliminates the application of the adhesive through the slot nozzle. The thermal reactivation of the adhesive suitable coating is carried out indirectly by tempering of the coating material by the coating roller 7. For this purpose, the coating roller 7 can be steplessly controlled from 20 to 200 ⁰ C.

Depending on the type and quality of the coating material, the adhesive used or the suitable adhesive coating of the coating material as shown in Figure 1 by irradiation or contact Temperierungsein- directions 14, 15 are used, the temperature of the coating material 9 and / or the upper - And / or bottom of the metallic substrates by induction or IR radiation can temper.

The bonding of the web-shaped adhesive-coated coating material 9 with the metal sheet oriented on the coating material is effected by the continuously adjustable pressure of the counterpressure roll 8 acting against the coating roll 7. This pressure can be adjusted steplessly within a range of approximately 5,000 to 60,000 N. The counter-pressure roller 8 has a rubberized or non-stick coated surface. The counter-pressure roller 8 can be designed as a cooled roller and have a temperature of about 10 to 30 ⁰ C. In addition, the counter-pressure roller 8 can be designed as a driven roller, whereby a better flatness is achieved with thin metallic carrier materials.

Optionally, in the processing of radiation-crosslinking reactive adhesives after passing through the coating device, a UV irradiation device 32 is used for an upper and optionally a lower web of the coating material 9. After the coating, the sheet flow of the metal sheets 2 coated with the coating material 9 and overlapped by it is overlapped or fed horizontally to a separating device 17 by means of a transport device 16 having a suction belt.

The severing of the coating material 9 at an adjustable point in the region of the overlap or underlapping or in the joint area is effected by a separating knife, depending on the type and thickness of the coating material. This separating knife is designed as a rotating cutting blade and is controlled so that it is in synchronism with the web speed of the coating material at the time of separation. The knife can be designed as a cold or heated knife, it is also conceivable to use a transversely acting to the web in the forward and reverse knives. As a further alternative, the separation of the coating material by a laser, wherein one or more laser beams cover the entire cutting area. In the case of a support material coated on both sides, the separation of the coating material takes place by an additional arrangement of one of the mentioned separation devices on the underside of the metal panel flow. The separating device 17 is controlled by computer means taking into account the respective length of the metal sheets, the position of the desired cutting point and the speed of the coated metal sheets.

In combination with the separation device 17 may also be present before the separation of the coating material, a Ausbrennstation 38 by means of one or more lasers, with the transverse or longitudinal recesses at z. B. plastic-like coating material can be realized. The laser beams burn the coating material in programmable contours on the metal plate in line widths of 0.1 - 7.0 mm. Vapors released during this process are extracted.

After separation of the coated carrier material, this is about a pair of withdrawal rollers with an adjustable lead of about 3 to 20% from the Separator 17 transported to a downstream acceleration conveyor belt 18 for individual panels.

The conveyor belt 18 feeds the singulated coated substrates to a downstream single or multiple stacker 19, each panel being reduced by a vacuum brake in its feed rate just before it reaches the drop point for lowering onto the stack to allow for damage free stacking.

Fig. 2 shows a further embodiment of the invention. Identical components are designated by the same reference numerals as in the first embodiment. In accordance with the first embodiment, the metal sheets 2 are fed from the unstacking apparatus 3 to the feeder 4, followed by the cleaning station 5. Depending on the type and thickness of the sheet-like coating material 9, it may not be necessary to thermally peel the coating material through the adhesive but to coat the metal panels with adhesive before entering the coating gap. As shown in Fig. 2, the adhesive is applied through the slit nozzle 11 directly to the metal sheets. The slot nozzle 11 and the associated units are arranged above the horizontally moving metal panels.

In order to achieve a precise transfer or adhesion of the coating material 9 in the coating gap on the metal plates by controlled feed of the metal plates to the printed pattern of the coating material 9, a register control 20 shown schematically in Fig. 2 is provided. An exact positioning is achieved by the register control 20, in particular in those applications in which the coating material is formed as a printed film and has multiple images on a surface corresponding to the dimension of a metal sheet. For further processing, the later separated coated metal plate is fed to a punching device, wherein the metal plate is aligned at the front plate edge and the side panel edge. In this case, the printed image of the film on the metal plate must exactly match the firmly fixed punching tool. For the coating of inner sides of cans or containers, etc. thin plastic films can be used, which are equipped as coextruded films with a thermally reactivatable adhesive coating. In order to achieve a two-sided coating of the metal panels 2, the apparatus 21 shown in FIG. 2 has a reactivation station 22, in which a coating material 23 arranged on a roll is thermally activated and subsequently into the space between the coating roll 7 and the Counterpressure roller 8 formed gap enters. In this way, a simultaneous, two-sided coating of the metal sheets is made possible. With the device 21 shown in Fig. 2, a plurality of narrow sheet-like coating materials can be processed, which are connected to the metal sheets. The coating material is supplied in roll form and assembled at a cutting station 24 by longitudinal cuts to a plurality of narrow material webs. In this way, a full width of the metal sheet unwound and plastic-coated sheet of the coating material can be cut, wherein the cut-out portions of the coating material are sucked off or wound up. In addition, the cutting station 24 can also be used to carry out trimming cuts on the coating material 9.

In the direction of movement behind the pair of rollers 7, 8 there is a UV irradiation device 33, which acts on both sides of the coated carrier material in order to trigger crosslinking in the case of reactive adhesives.

When a metal sheet is coated with a coating material whose width exceeds the width of the metal sheet, trimming of the coating material 9 corresponding to the contour of the metal sheet can be performed by a cutting station 25. For this purpose, one of the desired contour corresponding, heated at the exit points, rotating tool is used. The separated coating material is taken up by a counter roll by the adhesive force of the adhesive on the underside of the separated coating material. Depending on the task at hand, it may be necessary to coat metal panels with coating material from one metal panel to the next metal panel, up to 15 mm apart. In order to separate such coated metal panels without longitudinally protruding coating material, a double separation cut is required. After carrying out a first separating cut, which takes place analogously to the separating device 17 shown in FIG. 1, in the device 21 shown in FIG. 2, a first and a second separating cut takes place through a separating device 26. The separating device 26 additionally has a second rotating Knife or other separating device, such as a laser on. The separated strip of the coating material is aspirated after the execution of the cut. The transport of the separated metal panels is carried out as in the first embodiment by a conveyor belt 18 to a stacking device 19th

Fig. 3 shows a further embodiment of the invention, wherein a metallic carrier material is used in web form. The web-shaped carrier material 27 is wound on a roll 28, which is also referred to as a coil. The carrier material 27 is guided via a guide roller 29 into the coating gap, which is formed between the coating roller 7 and the counterpressure roller 8.

In accordance with the exemplary embodiment shown in FIG. 1, the web-shaped coating material 9 is provided with adhesive by the slot die 11 and passed over the coating roll 7 for temperature control, then the coating material 9 and the web-shaped carrier material 27 are replaced by those of the roll pair 7, 8 generated compressive forces connected to each other and wound on a roller 31 via a guide roller 30.

Alternatively, a cutting unit for the carrier material 27 provided with the coating material 9 may be used to cut the metal sheet into individual sheets. Preferably, carrier materials are used in the rectangular or formal blank, in particular also scroll panels. Fig. 4 shows two adjacent scroll panels 34, 39. The so-called scrolling is performed on two opposite sides of the tabular substrate material shaped section 35, 36 with a meandering contour. The two longitudinal sides of the panels 34, 39 have a smooth edge. Scroll panels are used, for example, to make round products such as screw caps or the like. The contour of the circular cover 37 is printed on the coating material and positioned on the panels so that adjacent rows are offset by half the distance between two circle centers to each other to achieve optimum panel use. The missing surface on one side of the scroll panel is located on the opposite side of the scroll board, thus optimally exploiting the material. The separation of the coating material takes place by means of the burn-out station 38.

Claims

claims:

1. A device for coating a metallic carrier material with a sheet-like coating material, characterized by a feed device (4) for supplying the carrier material to a coating station and a co-operating with a counter-pressure roller (8) coating roller (7), the metallic carrier material and to glue together the sheet-like coating material by applying pressure forces by means of an adhesive.

2. Apparatus according to claim 1, characterized in that it is suitable for coating tabular support materials, in particular in the rectangular and Formatzuschnitt, z. As scroll panels, is suitable, wherein adjacent Scroltafeln (34, 39) preferably complementary, adjacent shape-cutting sides (35, 36).

3. A device according to claim 2, characterized in that it comprises a destacking device (3) for singling stapeiförmig supplied carrier materials.

4. Apparatus according to claim 2 or 3, characterized in that it comprises an alignment station (6) for aligning the tabular support materials.

5. Apparatus according to claim 4, characterized in that the carrier materials can be aligned by the alignment station (6) in the direction of movement and / or laterally.

6. The device according to claim 4 or 5, characterized in that the support materials by the alignment station (6) underfolded or überuppt can be aligned with an adjustable Unterlappungs- or overlap measure.

7. Apparatus according to claim 4 or 5, characterized in that the carrier materials by the alignment station (6) can be aligned shock to shock or with an adjustable distance.

8. Device according to one of the preceding claims, characterized in that it comprises a slot nozzle (11) for applying the adhesive.

9. Apparatus according to claim 8, characterized in that the amount and / or the width of the adhesive to be applied is adjustable.

10. Device according to one of the preceding claims, characterized in that the adhesive in the contact process or in the non-contact method can be applied.

11. Device according to one of the preceding claims, characterized in that it is suitable for processing thermoplastic or reactive hot melt adhesives.

12. Device according to one of claims 8 to 11, characterized in that the coating material in the region of the slot nozzle (11) via a non-driven roller (12) and with the adhesive-coated side via a driven release roller (13) can be guided.

13. Device according to one of the preceding claims, characterized in that the coating roller (7) can be heated or cooled.

14. Device according to one of the preceding claims, characterized in that it comprises one or more, on the coating material (9) and / or on the top and / or the underside of the carrier material acting temperature control means (14, 15).

15. Device according to one of the preceding claims, characterized in that the counter-pressure roller (8) is pressure-adjustable.

16. Device according to one of the preceding claims, characterized in that the counter-pressure roller (8) has a rubberized surface or a non-stick coating.

17. Device according to one of the preceding claims, characterized in that it comprises a transport device (16) arranged in the direction of movement behind the coating station for the web-shaped coated carrier material.

18. The apparatus according to claim 17, characterized in that the transport device (16) has a suction belt.

19. Device according to one of the preceding claims, characterized in that it comprises a UV irradiation device for irradiating radiation-crosslinking reactive adhesives.

20. Device according to one of the preceding claims, characterized in that it comprises a device for separating the web-shaped, with the coating material (9) provided with carrier materials.

21. The device according to claim 20, characterized in that it comprises a suction belt having a transport device (18) for transporting the

Having carrier materials after separation.

22. Device according to one of the preceding claims, characterized in that it comprises a Ausbrennstation (38), which preferably comprises at least one laser to produce recesses in the coating material in the transverse and / or longitudinal direction.

23. Device according to one of the preceding claims, characterized in that it comprises a stacking device (19) for the coated carrier materials or coupled to a stacking device (19) or can be coupled.

24. Device according to one of the preceding claims, characterized in that it comprises a register control (20) for accurately fitting the coating material (9) on the carrier material.

25. Device according to one of the preceding claims, characterized in that it comprises a arranged in the direction of movement in front of the coating station cleaning station (5) for the metallic carrier materials to subject the carrier materials of a corona treatment for adjustably increasing the surface tension.

26. Device according to one of the preceding claims, characterized in that in the coating station web-shaped coating materials (9) can be applied to both sides of the metallic carrier material.

27. The device according to claim 26, characterized in that a thermal activation or reactivation station (22) is provided, through which the coating material (9) is thermally activated at least on one side of the carrier material.

28. Device according to one of the preceding claims, characterized in that it comprises a cutting station (24) arranged in the direction of movement in front of the coating station for the coating material (9).

29. Device according to one of the preceding claims, characterized in that it has a direction of movement behind the coating station Having arranged removal station (25) for the coating material (9).

30. Device according to one of claims 20 to 29, characterized in that it has a separating device arranged in the direction of movement behind the device for separating (26) in order to cut the front and / or trailing edge of coated carrier materials.

31. Device according to one of the preceding claims, characterized in that they are suitable for coating metallic carrier materials in

Trace shape is suitable.

32. Apparatus according to claim 31, characterized in that it comprises a winding device for the coated web-shaped carrier materials.

33. Apparatus according to claim 31, characterized in that it comprises a cutting device for separating the coated web-shaped carrier materials.

34. Device according to one of the preceding claims, characterized in that it is suitable for the coating materials film, textile, paper or leather.

35. Device according to one of the preceding claims, characterized in that it is suitable for printed or unprinted coating materials.

36. A method for coating a metallic carrier material with a sheet-like coating material, characterized in that the

Carrier material is fed by means of a feed device to a coating station, in which it passes through a gap formed between a counter-pressure roller and a coating roller and under the influence of kung of the compressive forces generated by the rollers is bonded by means of an adhesive with the sheet-like coating material.

37. The method according to claim 36, characterized in that the metallic carrier materials are separated in a destacking device.

38. The method according to claim 36 or 37, characterized in that the metallic carrier materials are aligned in an alignment station in the direction of movement and / or laterally.

39. The method according to any one of claims 36 to 38, characterized in that the carrier materials are undercut by the alignment or Üsschschpt aligned with an adjustable Unterlappungs- or overlap measure.

40. The method according to any one of claims 36 to 38, characterized in that the carrier materials are aligned by the alignment station shock to impact or with an adjustable distance.

41. The method according to any one of claims 36 to 40, characterized in that the adhesive is applied through a slot nozzle.

42. The method according to any one of claims 36 to 41, characterized in that the adhesive is applied in the contact method or in the non-contact method.

43. The method according to any one of claims 36 to 42, characterized in that the coating material and / or the top and / or the underside of the carrier material is tempered by at least one Temperierungseinrich- device.

44. The method according to any one of claims 36 to 43, characterized in that a reactive, radiation-crosslinking adhesive is irradiated by a UV irradiation device.

45. The method according to any one of claims 36 to 44, characterized in that the web-shaped, provided with the coating material carrier materials are separated.

46. The method according to any one of claims 36 to 45, characterized in that the carrier materials and the coating material by means of a

Register control are accurately controlled each other.

47. The method according to any one of claims 36 to 46, characterized in that coating materials are applied on both sides of the carrier materials.

48. The method according to any one of claims 36 to 47, characterized in that a pre-applied on the coating material and / or on the carrier material adhesive is thermally activated or reactivated.

49. The method according to any one of claims 36 to 48, characterized in that the coating material is trimmed and / or trimmed before coating and / or partially separated.

50. The method according to any one of claims 36 to 49, characterized in that at least one edge, preferably the front and / or rear edge of the coated carrier materials is cut.

51. The method according to any one of claims 36 to 44, characterized in that a web-shaped metallic carrier material is used.

52. The method according to any one of claims 36 to 51, characterized in that a printed or unprinted coating material is used.

53. The method according to any one of claims 36 to 52, characterized in that is used as the coating material film, textile, paper or leather.