[go: up one dir, main page]

HK1118761A - Device and method for coating a metallic support material - Google Patents

Device and method for coating a metallic support material Download PDF

Info

Publication number
HK1118761A
HK1118761A HK08108443.8A HK08108443A HK1118761A HK 1118761 A HK1118761 A HK 1118761A HK 08108443 A HK08108443 A HK 08108443A HK 1118761 A HK1118761 A HK 1118761A
Authority
HK
Hong Kong
Prior art keywords
coating
coating material
station
adhesive
substrate
Prior art date
Application number
HK08108443.8A
Other languages
Chinese (zh)
Inventor
Peter Bartsch
Original Assignee
Vviko Holding Gmbh
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 Vviko Holding Gmbh filed Critical Vviko Holding Gmbh
Publication of HK1118761A publication Critical patent/HK1118761A/en

Links

Description

Device and method for coating metal substrate material
Technical Field
The present invention relates to an apparatus and a method for coating a metal substrate material with a strip of coating material.
Background
In order to coat a metal base material such as a metal plate with a coating material to change the appearance or feel of one or both surfaces of the metal plate surface, various devices and methods are known. For example, paints or printing pigments which are compatible with UV leather or contain solvents are used in the production of lacquered or printed metal sheets. Environmental concerns play an increasingly important role in the manufacture of metal packaging, such as for glass containers or bottles, crown corks, industrial cans, food boxes and aerosol cans, and in many other products made of painted or printed metal, such as toys or trims and the like. These problems are caused on the one hand by the solvents contained in the paint or printing colour, and in other applications the requirement of food compatibility makes the cost of the device particularly high.
In the conventional method, one side of the metal sheet is coated with a primer for subsequent printing in a first step, wherein the solvent-containing paint is dried by means of a drying oven which is very complex, bulky and requires a high investment. In such plants, the energy consumption is particularly high and, in addition, a large investment is required. The metal sheet is usually transported approximately vertically, and then the other side of the metal sheet is coated with a so-called protective paint in a separate, likewise very costly, second process, and the metal sheet is printed on one side in a separate, likewise costly, third process and subsequently heated to dry, likewise very costly. Protective or clear paints applied to printing colours require a separate process which is as expensive as applying a primer.
Similar procedures are required when using uv-compatible paints and pigments commonly used in the prior art, wherein the drying of the paints and printing pigments is carried out by means of very energy-intensive and costly uv irradiation of the metal plates.
An increasing problem in the treatment of solvent-containing paints and printing colors is the emission of volatile organic binders, since higher costs are incurred in order to comply with increasingly stringent emission regulations which limit production, and in addition, conventional painting installations are distinguished by a large floor space requirement.
Disclosure of Invention
The object of the invention is therefore to create a device for coating a metallic substrate material with a strip-shaped coating material which is simple in construction and can be coated in an environmentally compatible manner.
In order to solve this problem, according to the invention, a device of the type mentioned at the outset is provided with a feed device for feeding the substrate material to the coating station and a coating roller which interacts with a counter pressure roller in order to bond the metallic substrate material and the strip-shaped coating material to one another by means of an adhesive under the application of a pressure force.
In contrast to conventional devices, the metallic base material is bonded with a binder to the printed or unprinted coating material, so that solvent-containing paints and printing pigments can be dispensed with altogether. The device according to the invention has a comparatively simple construction, since expensive varnishing or printing equipment, which usually results in high costs and has a high energy consumption, can be omitted.
The device according to the invention is particularly suitable for coating plate-shaped substrate materials, in particular rectangular or profiled cut materials (formmatzuschnitt), for example curved plates (Scrollsafe), which can be overlapped end to end or under the cutting profile (unt)erlappt, underlap) or overlap (umberlappt). Adjacent curved panels preferably have complementary abutting profiled cutting edges (formschnittseitrieten). Such a substrate material can be fed in a stack-like manner to the apparatus, by means of which the substrate material can be separated and fed successively through the different stations of the apparatus according to the invention. The matrix material typically has a viscosity of 800-2Mass per unit area of (d).
The device according to the invention preferably has an alignment station for aligning the plate-shaped substrate material. The alignment station can align the base material in the direction of movement, i.e. longitudinally and/or laterally. In this way, in any case, even if the deposited base material is not accurately placed at a prescribed position, the coating material can be accurately aligned.
According to a preferred development of the device according to the invention, the substrates can be arranged one above the other or one below the other in an imbricated manner by means of the aligning station with an adjustable overlap or underlap. Alternatively, the base material may be arranged end-to-end through the alignment station or aligned with an adjustable gap.
In the device according to the invention, a slot nozzle for applying the adhesive can be provided, which slot nozzle can be dispensed with in other embodiments if the substrate material and/or the coating material is already coated with adhesive. In this case, the previously applied adhesive can be activated or regenerated by heating.
It is advantageous if the amount and/or width of the adhesive sprayed can be adjusted by means of a slot nozzle. The amount of adhesive applied can thus be matched precisely to the base material and coating material used.
The adhesive can be applied by contact or non-contact methods using the device of the present invention.
The apparatus of the present invention is particularly advantageous for processing thermoplastic or reactive molten adhesives.
In the device according to the invention, the adhesive-coated side of the coating material in the region of the slot nozzle can be guided over a non-driven roller by a driven release roller, which acts as a pulling calender (Abzugskalander) for the strip of coating material and can be heated or cooled. In addition, the release roller surface may have an anti-adhesion layer. The release roller is surrounded in a controlled manner by the adhesive-coated side of the coating material and releases the coating material in a stress-regulated manner for feeding onto a downstream coating roller.
Within the scope of the invention, the device has one or more temperature control devices which act on the coating material and/or on the bottom and/or top side of the base material in order to heat the material to a defined process temperature.
In the device according to the invention, a particularly wide range of applications is obtained if the pressure can be adjusted in correspondence with the pressure roller. It is particularly advantageous if the counter-pressure roller has a rubberized surface or an anti-adhesion coating.
It is conceivable for the device to have a conveying device for the coated web-shaped substrate material, which is arranged downstream of the coating station in the direction of movement. Particularly preferably, the conveying device has a suction belt, by means of which particularly good fixing of the substrate material is ensured.
Alternatively, the device according to the invention can have a UV radiation device for irradiating the radiation-crosslinking reactive adhesive. The UV irradiation is performed after the metal matrix material is bonded and compacted with the band coating material.
In order to be able to separate the plate-shaped substrate material again immediately after application, a device for separating can be provided, and the separated substrate material can be conveyed by a conveying device having a suction belt, wherein it is particularly advantageous if the substrate material is conveyed to a stacking device suitable for a stack weight of not more than 3,500 kg.
The device according to the invention can have a register control device (positioning control device) for the precise application of the coating material to the substrate material, by means of which register control electronically readable identification marks on the coating material can be detected in order to apply the coating material precisely to the substrate material. Alternatively or additionally, the edge of the substrate material can also be measured by the register control device. At the same time, the input of the metal matrix material is controlled in accordance therewith.
In a further embodiment of the invention, it is conceivable to apply the strip-shaped coating material on both sides of the metal base material in a coating station. For this purpose, a second slot nozzle can be provided, but an activation station can also be provided, by means of which the coating material on at least one side of the substrate material can be activated by heating.
The device according to the invention can have a cutting station for the coating material, which cutting station is arranged in the direction of movement before the coating station. With this cutting station the coating material is side-trimmed or may be slit longitudinally before it reaches the coating station.
The apparatus according to the invention can furthermore have a removal station for the coating material, which is arranged downstream of the coating station in the direction of movement, in which a wide strip of coating material can be cut to conform to the contour of a narrower or specially shaped metal base material.
In a further embodiment of the invention, a cutting station can be provided downstream of the device for separating in the direction of movement, in order to cut the front and/or rear edge of the coated substrate material. Such a cutting station may be used if the metal matrix material is produced end-to-end at a distance between the individual supports. The cutting station may have a blade and/or a laser for this purpose.
As an alternative to the treatment of sheet-metal base material, the device according to the invention can also be designed to be suitable for coating strip-shaped metal base material. In this case, metal substrate materials in the form of rolls in the form of strips are used, on which the coating material is applied and subsequently rewound into rolls on a winding device. Alternatively, however, the web-shaped substrate material can also be cut in a cutting device, so that they leave the device according to the invention as coated, sheet-shaped substrate material. The cutting station may have a blade and/or a laser. The laser can be used to form cuts of any profile, particularly for profile cutting of curved plates.
Particularly preferably, the device is suitable for coating materials, films, textiles, paper or leather. These coating materials may be used in printed or unprinted form.
Furthermore, the invention relates to a method for coating a metallic base material. In the method according to the invention, it is provided that the substrate material is fed to the application station by means of a feed device, guided through a gap formed between the respective pressure roller and the application roller, and bonded to the web-shaped coating material by means of an adhesive under the effect of the pressure force generated by the rollers.
Further embodiments of the invention result from the dependent claims.
Drawings
Further advantages and details of the invention are explained with the aid of embodiments with reference to the drawings. Wherein the attached drawings are schematic drawings:
FIG. 1 shows a first embodiment of the apparatus for coating a metallic substrate material of the present invention;
FIG. 2 shows a second embodiment of the device of the present invention;
FIG. 3 shows a third embodiment of the invention; and
fig. 4 shows two pieces of base material shaped as curved plates.
Detailed Description
The device 1 shown in fig. 1 is suitable for coating a base material shaped as a metal sheet and consisting of aluminium or tinplate. The plates consisting of tinplate may be galvanized, tinned or chrome plated. Of course metal sheets consisting of other alloys can also be treated with the device 1. Typical plate thicknesses are 0.1-0.5 mm.
The metal sheet 2 is stacked horizontally on a de-stacking device 3 and fed to the device 1, the metal sheet 2 being transported substantially horizontally through the device 1 during the coating process, the metal sheet 2 being transported from right to left in the view shown in fig. 1. The metal sheets 2 are transported by a feeding device 4 having a suction belt by which the metal sheets 2 are transported one after the other. The destacking of the metal sheets 2 is performed periodically, wherein each time the uppermost metal sheet is removed with a suction head, and the stack is lifted accordingly. The individual metal sheets 2 can be conveyed end to end, in which case a given distance between the individual metal sheets can also be provided, or alternatively the metal sheets can be conveyed through the suction belt in the form of overlapping or underlapping (endless) streams of flakes.
Each sheet metal is arranged in a controlled manner by means of an alignment station, not shown in fig. 1, i.e. the sheet metal is positioned laterally and longitudinally such that either the same spacing or the same overlap or underlap exists between the individual sheet metal.
In some embodiments, a device may be provided that changes the stream of flakes to a lower overlap in the overlap region by lifting the rear panel and lowering it onto the front panel.
After the feed device 4, the metal sheet is conveyed to a cleaning station 5. The cleaning station 5 has an introduction roller and is designed such that one or both sides of the metal sheet are cleaned, which can be done mechanically, for example by brushes, thermally, for example by infrared rays, or chemically, for example by liquid cleaning agents. Alternatively, the cleaning may be performed by Corona treatment (Corona) with a radiation process. Production-related residues that may be present on the surface of the metal sheet can be removed by this cleaning process. At the same time, by using corona treatment, the surface stress of the metal sheet is increased to the extent required for optimum adhesion of the adhesive.
Immediately after the cleaning station 5, the cleaned metal sheets arrive at an alignment station 6, which adjustably aligns the individual sheets so that they enter the gap between the coating roller 7 and the corresponding pressure roller (counter-pressure roller) 8 in a prescribed manner. In this way, the individual plates are precisely aligned with the coating material, and the front and side edges of the plates are precisely aligned, wherein at the same time an adjustable overlap or lower overlap or end-to-end spacing is achieved. The amount of overlap or underlap may be 1 to 15mm and the end-to-end gap may be 0 to 15 mm.
The coating material 9 in the form of a film is present in this embodiment as a roll and is located on a rotatable clamping shaft 10 for loading. The brake-controlled or driven guidance of the web of coating material 9 takes place by means of different rollers until it enters the coating nip formed by the coating roller 7 and the counter-pressure roller 8.
The adhesive is applied to the coating material 9 by means of a slot nozzle 11, which is known per se and comprises an adhesive tank with a melting device, heatable feed and return hoses, a nozzle front chamber with a metering pump, a self-contained slot nozzle with partial regions and a spreading lip with a spreading width adjustment, and an electronic control device.
At typical binder temperatures from about 80 to 200 ℃, about 0.5 to 20g/m can be achieved with slot nozzle 112The amount of adhesive applied. Depending on the distance of the nozzle lip from the coating material and the adjustment of the angle of rotation, the application of adhesive can alternatively take place by direct contact of the nozzle lip with the coating material (contact method) or at a distance of about 1 to 5mm from the coating material (non-contact method), wherein, with such an adjustment, a closed adhesive film corresponding to the adjusted application width is applied over the entire surface or in part from the nozzle lip onto the coating material and is received by the coating material.
Thermoplastic or reactive melt adhesives are suitable for use as the adhesive.
The molten adhesive used is selected according to the substrate to be bonded and the requirements associated therewith, such as the required temperature resistance and heat resistance of the bond, etc.
As purely thermoplastic melt adhesives, use may in particular be made of adhesives based on ethylene-vinyl acetate copolymers (EVA), polyolefins (e.g. amorphous poly- α -olefins, metallocene-catalyzed polyolefins), polyacrylates, copolyamides (coparamides), copolyesters and/or thermoplastic polyurethanes or corresponding copolymers and/or terpolymers.
As reactive melt adhesives, for example moisture crosslinking (ferrichitsvernetzende), adhesives based on silane-incorporated, amorphous poly-alpha-olefins or polyurethanes terminated with isocyanates can be used in particular. For reactive melt adhesives, subsequent crosslinking with moisture results in a bond that is resistant to heat or high temperatures. The reactive melt adhesive thus combines the advantages of a rapid initial solidification of the physical bonding process by cooling with the subsequent chemical crosslinking, the melt having to be protected against moisture before it is applied when processing the melt adhesive which reacts with moisture.
For example, coating a metal sheet or plate with an OPP film (oriented polypropylene film) or a PET film (polyester film) in a back-printed or unprinted form and in combination with the high temperature resistance of the composite material, a melt adhesive based on a polyolefin incorporating a silane may be used.
Silane-modified poly-alpha-olefins, for example commercially available under the product name "Vestoplast ® 206" from Marl, Degussa AG, Germany, are suitable polymers for moisture-crosslinking reactive melt adhesives within the scope of the present invention.
Other suitable reactive melt adhesives include radiation crosslinked reactive adhesives (e.g., UV radiation crosslinked reactive melt adhesives).
The application of the adhesive can be carried out over a wide temperature range, with treatment temperatures generally in the range from 80 ℃ to 200 ℃ being chosen.
In order to achieve good spreadability of the melt adhesive, melt adhesives having a Brookfield viscosity generally in the range of from 50 to 1,000,000 mPas at a processing temperature of generally from 80 ℃ to 200 ℃ are generally employed.
Preference is given, for example, to using reactive melt adhesives based on silane-incorporated polyolefins, in particular silane-incorporated noncrystalline poly-alpha-olefins, which have a Brookfield viscosity at 180 ℃ in the range from 50 to 50,000 mPas, in particular from 1,000 to 10,000 mPas, preferably from 5,000 to 8,000 mPas, particularly preferably from 5,500 to 7,500 mPas.
To control the reactivity and crosslinking properties, the reactive melt adhesives are generally supplemented with customary catalysts, for example dibutyltin laurate (DBTL), in amounts customary for this purpose.
In addition, in order to control the exposure time and/or the adhesive property of the aforementioned melt adhesive, particularly in terms of improving workability, the above melt adhesive may be added with additives, particularly a non-reactive polymer (e.g., a non-modified non-crystalline poly- α -olefin), a non-reactive resin (e.g., a hydrocarbon resin) and/or a non-reactive paraffin. In this way, the properties of the adhesive can be adjusted to the intended application, i.e. so-called tailor fitting.
Different materials can be considered for the coating material 9, such as textiles, paper or leather, preferably a plastic film with a material thickness of about 5 to 250 μm, more preferably a film thickness of 10-25 μm.
Below the nozzle lip of the slot nozzle 11 a pair of rollers is arranged, through the nip of which the coating material is drawn while adhesive is applied. The pair of rolls also functions as a pulling calender roll and consists of a non-driven pressure-adjustable first roll 12 and a heatable and coolable second release roll 13 coated with an anti-adhesion agent. The delivery roll 13 runs approximately 3% to 10% faster than the application roll 7 and is connected to an adjustably controllable drive. The adhesive application side of the band-shaped coating material 9 surrounds the release roller 13 until a detectable adjustable exit point, and the strip tension of the coating material 9 after leaving the release roller 13 until entering the nip formed between the coating roller 7 and the counter-pressure roller 8 is then adjusted depending on the type and strength of the coating material 9, in order to avoid tensile stresses which lengthen or deform the coating material 9. This is particularly important when the metal sheet is coated in register, for example if the coating material formed into a film has printed graphics thereon.
The adhesive-coated web-shaped coating material 9 is wound completely around the coating roller 7 on its path guiding the web and is cooled or heated by the coating roller 7 depending on the type of adhesive used and the respective adhesive treatment temperature.
If a coating material is used which is already provided with a heat-activated coating suitable for the adhesive, this coating material is passed through the apparatus in the same way, but the adhesive is no longer applied by means of a slot nozzle. The thermal activity of the coating suitable for the adhesive is achieved indirectly by tempering the coating material with the application roller 7, for which purpose the temperature of the application roller 7 can be adjusted in a stepless manner from 20 ℃ to 200 ℃.
Depending on the coating material, the adhesive used or the type and quality of the coating material, which is suitable for the adhesive, it is possible, as shown in fig. 1, to use temperature control devices 14, 15 which operate by radiation or contact and which can control the temperature of the top and/or bottom side of the coating material 9 and/or of the metallic base material by induction or infrared radiation.
The bonding of the adhesive-coated band-shaped coating material 9 to the metal sheet of the register coating material takes place by means of a steplessly adjustable pressure of the counter-pressure roller 8 acting on the coating roller 7. This pressure may be adjusted steplessly in the range of about 5,000 to 60,000N, corresponding to the pressure roller 8 having a gummed or anti-stick coated surface, the pressure roller 8 may be formed as a cooled roller having a temperature of about 10 to 30 ℃. Furthermore, the counter-pressure roller 8 can be designed as a driven roller, as a result of which better planarity is achieved when thin metal matrix materials are applied.
Alternatively, the top and possibly also the bottom side of the coating material 9 can be irradiated with an ultraviolet radiation device 32 during the treatment of the radiation-crosslinked reactive adhesive after passing through the coating device.
Immediately after coating, the sheet flow of metal sheets 2 coated with the coating material 9 and cross-linked by the coating material is conveyed horizontally, either overlapping or under-overlapping or end-to-end, by means of a conveying device 16 with a suction belt to a cutting device 17.
Depending on the type and thickness of the coating material, the coating material 9 is cut off by means of a blade in the overlap or lower overlap region or in an adjustable point in the butt region. The cutting blade is designed as a rotating cutting blade and is controlled in such a way that it runs synchronously with the speed of the web of coating material at the time of cutting. The blade may be made as a cold or heated blade, and it is also conceivable to use a blade operating perpendicular to the forward and backward travel of the strip. Alternatively, the coating material can also be cut by means of a laser, wherein one or several laser beams dominate the entire cutting zone. For a double-coated base material, the cutting off of the coating material takes place by additionally arranging a said cutting-off device on the underside of the sheet metal flow, the cutting-off device 17 being controlled by means of a computer unit, taking into account the respective length of the sheet metal, the position of the desired cutting point and the speed of the coated sheet metal.
In conjunction with the cutting device 17, even before the cutting of the coating material, a burning station (Ausbrennstation)38 can be provided by means of one or several lasers, by means of which transverse or longitudinal grooves can be realized in the case of, for example, plastic coating materials, wherein the laser beam burns the coating material on the metal sheet in a programmable profile with a line width of 0.1 to 7.0mm, the steam formed during this operation being drawn off.
After the coated substrate material has been cut, it is fed from the cutting device 17 by means of a pair of drawing rolls with an adjustable advance of about 3% to 20% onto the downstream accelerated conveyor belt 18 for the individual boards.
The conveyor belt 18 feeds the coated, cut-off matrix material to a downstream single or multiple stacking devices 19, wherein each plate is lowered by a vacuum brake at its forward feed speed just before reaching the stop point on the plate stack, in order to be able to stack the plates without damage.
Fig. 2 shows another embodiment of the present invention. Wherein like components are identified with like reference numerals as in the first embodiment. In accordance with the first exemplary embodiment, the metal sheet 2 is fed by the unstacking device 3 to the feeding device 4, followed by a cleaning station 5. Depending on the type and thickness of the band-shaped coating material 9, it may be desirable not to subject the coating material to a thermal load due to the adhesive, but to apply the adhesive to the metal sheet before it enters the coating nip. As shown in fig. 2, the adhesive is applied directly to the metal sheet by means of a slot nozzle 11, for which purpose the slot nozzle 11 and the associated components are arranged above the horizontally moving metal sheet.
In order to achieve a precise transfer or application of the coating material 9 to the metal sheet in the coating nip in a matched manner by controlling the feed of the metal sheet to the printed pattern of the coating material 9, a register control device (positioning control device) 20, which is schematically illustrated in fig. 2, is provided. In particular, in applications where the coating material is made as a printed film and has a plurality of patterns over an area corresponding to the size of the metal plate, precise positioning can be achieved by the registration control device 20. For subsequent processing, the separated, coated metal sheet is then fed to a punching device, in which the metal sheet is aligned with the front edge of the sheet and the side edges of the sheet. In this case, the printed pattern of the film on the metal plate must be matched precisely to the stationary stamping tool.
For the coating of the inner walls of boxes or containers and the like, thin plastic films can be used, which are provided with a coating of a heat-activated adhesive as a composite film. In order to achieve a double-sided coating of the metal sheet 2, the apparatus 21 shown in fig. 2 has a regeneration station (Reaktivierungsstation)22, in which the coating material 23 in the form of a film, which is arranged on a roller, is activated by heating and then enters the nip formed between the coating roller 7 and the counter-pressure roller 8, in such a way that the metal sheet can be coated on both sides simultaneously, and a plurality of narrow strips of coating material can also be processed with the apparatus 21 shown in fig. 2, which are connected to the metal sheet. The coating material is here fed in the form of a web and is formed into a plurality of narrow material strips by longitudinal cutting at a cutting station 24. In this way, a strip of plastic-coated coating material can be cut out which is spread over the entire width of the metal sheet, the cut-out portion of the coating material being sucked off or wound up. The cutting station 24 can also be used to trim and cut the coating material 9.
In the direction of movement, downstream of the roller pair 7, 8, an ultraviolet radiation device 33 is provided, which acts on both sides of the coated substrate material in order to crosslink during regeneration of the adhesive.
If the metal sheet is coated with a coating material having a width that exceeds the width of the metal sheet, a trimming of the coating material 9 corresponding to the contour of the metal sheet can be carried out by a cutting-off station 25. For this purpose, a rotating tool is used which can be heated at the cutting-off point in accordance with the desired contour. The cut-off coating material is received by a corresponding roller by the adhesive force of the adhesive on the bottom surface of the cut-off coating material.
Depending on the respective application, it may be necessary to apply the coating material to the metal sheets end to end at a distance of up to 15mm from metal sheet to metal sheet. In order to separate the metal sheet coated in this way, the coating material does not protrude laterally, two cuts are required. After the first cutting similar to that performed in the cutting device 17 shown in fig. 1, the first and second cutting are performed by the cutting device 26 in the device 21 shown in fig. 2. For this purpose, the severing device 26 has an additional second rotary blade or another severing device, for example a laser. The cut-off strip of coating material is sucked away after the cutting is completed. As in the first embodiment, the separate metal sheets are conveyed by a conveyor belt 18 leading to a stacking device 19.
Fig. 3 shows another embodiment of the invention in which a strip of metal matrix material is used. The strip-like base material 27 is wound on a reel or spool 28. The substrate material 27 is introduced via a guide roll 29 into the coating nip formed between the coating roller 7 and the counter-pressure roller 8.
In accordance with the exemplary embodiment shown in fig. 1, the band-shaped coating material 9 is provided with adhesive by means of a slot nozzle 11 and is guided by means of a coating roller 7 for temperature control, and the coating material 9 and the band-shaped substrate material 27 are then joined to one another by means of the contact pressure generated by the roller pair 7, 8 and are wound onto a reel 31 by means of a guide roller 30.
Alternatively, a cutting unit for the base material 27 provided with the coating material 9 may be employed in order to cut the metal strip into individual sheets.
Preferably, a rectangular or profiled cutting stock of base material, in particular a curved plate, is used. Figure 4 shows two coils 34, 39 placed side by side. The so-called meandering portions (meandering) are profile cuts 35, 36 with a zigzag profile made on opposite sides of the plate-shaped substrate material. Both longitudinal sides of the plates 34, 39 have smooth edges. For example, curved plates are used to make round products such as screw caps or the like. The contour of the circular cover plate 37 is printed on the coating material and positioned on the plate such that adjacent rows are offset from each other by half the distance between the two circle centers in order to achieve optimum utilization of the plate. The missing area on one side of the rolled sheet is on the opposite side of the rolled sheet, in this way the material is utilized optimally. The cutting of the coating material takes place by means of a burning station 38.

Claims (53)

1. Device for coating a metallic substrate with a band-shaped coating material, characterized by a feed device (4) for feeding the substrate to a coating station and a coating roller (7) co-acting with a counter pressure roller (8) for bonding the metallic substrate and the band-shaped coating material to each other by means of an adhesive under the application of a pressure force.
2. Device according to claim 1, characterized in that the device is suitable for coating plate-shaped substrate materials, in particular rectangular and profiled cutting stock, such as curved plates, wherein adjacent curved plates (34, 39) preferably have complementary, mutually adjoining profiled cutting edges (35, 36).
3. Device according to claim 2, characterized in that the device has a destacking device (3) for separating the substrate material fed in piles.
4. A device according to claim 2 or 3, characterized in that the device has an alignment station (6) for aligning the plate-like substrate material.
5. The device according to claim 4, characterized in that the base material can be aligned in the direction of movement and/or laterally by means of the alignment station (6).
6. The device as claimed in claim 4 or 5, characterized in that the base material can be aligned by the alignment station (6) by an adjustable amount of overlap or overlap.
7. A device according to claim 4 or 5, characterized in that the base material can be aligned by means of an alignment station (6) either end-to-end or with an adjustable gap.
8. Device according to one of the preceding claims, characterized in that the device has a slot nozzle (11) for applying adhesive.
9. Device as claimed in claim 8, characterized in that the amount and/or width of the adhesive to be applied is adjustable.
10. Device as claimed in any of the foregoing claims, characterized in that the adhesive can be applied by contact or non-contact methods.
11. Device according to one of the preceding claims, characterized in that the device is suitable for processing thermoplastic or reactive melt adhesives.
12. Device according to one of claims 8 to 11, characterized in that the coating material can be guided in the region of the slot nozzle by an undriven roller (12) and the adhesive-coated side by a driven release roller (13).
13. Device according to one of the preceding claims, characterized in that the application roller (7) is heatable or coolable.
14. Device according to one of the preceding claims, characterized in that the device has one or more temperature control devices (14, 15) acting on the coating material (9) and/or on the top and/or bottom side of the substrate material.
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 an anti-adhesion coating.
17. Device according to one of the preceding claims, characterized in that the device has a conveyor device (16) for the coated web-shaped substrate material, which is arranged downstream of the coating station in the direction of movement.
18. The device as claimed in claim 17, characterized in that the transport device (16) has a suction belt.
19. Device as claimed in one of the preceding claims, characterized in that the device has a UV radiation device for irradiating the radiation-crosslinking reactive adhesive.
20. Device according to one of the preceding claims, characterized in that the device has a device for separating the strip-shaped substrate material provided with the coating material (9).
21. Device according to claim 20, characterized in that the device comprises a transport device (18) with a suction belt for transporting the substrate material after separation.
22. The device as claimed in one of the preceding claims, characterized in that it comprises a burning station (38), preferably with at least one laser, for producing grooves in the coating material in the transverse and/or longitudinal direction.
23. Device according to one of the preceding claims, characterized in that the device has a stacking device (19) for the coated substrate material, or the device is or can be coupled to a stacking device (19).
24. Device according to one of the preceding claims, characterized in that the device has a register control device (20) for the precise application of the coating material (9) to the substrate material.
25. Device according to one of the preceding claims, characterized in that it has a cleaning station (5) for the metallic base material arranged in the direction of movement before the coating station in order to carry out a corona treatment of the base material in order to adjust and increase the surface stress.
26. Device according to one of the preceding claims, characterized in that the band-shaped coating material (9) can be applied to the metal base material from both sides in the coating station.
27. Device according to claim 26, characterized in that a heat activation or regeneration station (22) is provided, by means of which the coating material (9) on at least one side of the substrate material can be heat activated.
28. The device as claimed in one of the preceding claims, characterized in that the device has a cutting station (24) for the coating material (9) arranged in the direction of movement before the coating station.
29. The device as claimed in one of the preceding claims, characterized in that the device has a removal station (25) for the coating material (9) arranged after the application station in the direction of movement.
30. Device according to one of claims 20 to 29, characterized in that the device has a cutting device (26) which is arranged downstream of the device for separating in the direction of movement in order to cut the front and/or rear edge of the coated substrate material.
31. Device according to one of the preceding claims, characterized in that the device is suitable for coating a strip-shaped metal base material.
32. The device as claimed in claim 31, characterized in that the device has a winding device for the coated web-shaped substrate material.
33. The apparatus as claimed in claim 31, characterized in that the apparatus has a cutting device for separating the coated web-shaped substrate material.
34. Device according to one of the preceding claims, characterized in that the device is suitable for coating films of materials, textiles, paper or leather.
35. Device according to one of the preceding claims, characterized in that the device is adapted to a printed or unprinted coating material.
36. A method for coating a metallic substrate with a band-shaped coating material, characterized in that the substrate is fed by means of a feed device to a coating station, in which the substrate is passed through a nip formed between a counter-pressure roller and the coating roller and is bonded to the band-shaped coating material by means of an adhesive under the effect of a pressing force generated by the rollers.
37. The method of claim 36, wherein the metal matrix material is separated in a de-stacking device.
38. A method according to claim 36 or 37, wherein the metal matrix material is aligned in the direction of movement and/or laterally in the alignment station.
39. Method according to one of claims 36 to 38, characterized in that the base material is aligned by the aligning station in an imbricated arrangement one below the other or one above the other with an adjustable overlap or overlap.
40. A method according to any one of claims 36 to 38, wherein the base material is aligned end to end or at an adjustable spacing through the alignment station.
41. A method according to any one of claims 36 to 40, wherein the adhesive is applied through a slot nozzle.
42. A method according to any one of claims 36 to 41, wherein the adhesive is applied by contact or non-contact application.
43. A method as claimed in any one of claims 36 to 42, characterized in that the top and/or bottom surfaces of the coating material and/or the base material are tempered by means of at least one tempering device.
44. A method as claimed in any one of claims 36 to 43, characterized in that the radiation-crosslinked reactive adhesive is irradiated by means of UV radiation.
45. A method according to any one of claims 36 to 44, wherein the strip of substrate material provided with coating material is divided.
46. A method as claimed in any one of claims 36 to 45, characterized in that the substrate material and the coating material are controlled precisely in cooperation with one another by means of register control means.
47. A method according to any one of claims 36 to 46, wherein the coating material is applied to both sides of the substrate material.
48. A method as claimed in any one of claims 36 to 47, characterized in that the binder applied beforehand to the coating material and/or the matrix material is activated or regenerated thermally.
49. A method as claimed in any one of claims 36 to 48, characterized in that the coating material is cut and/or partially removed before application.
50. A method according to any one of claims 36 to 49, wherein at least one edge, preferably the front edge and/or the rear edge, of the coated substrate material is cut.
51. A method according to any one of claims 36 to 44, wherein a strip of metal matrix material is used.
52. A method as claimed in any one of claims 36 to 51, characterized in that a printed or unprinted coating material is used.
53. A method as claimed in any one of claims 36 to 52, characterized in that a film, textile, paper or leather is used as the coating material.
HK08108443.8A 2005-04-01 2006-01-19 Device and method for coating a metallic support material HK1118761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005015295.3 2005-04-01

Publications (1)

Publication Number Publication Date
HK1118761A true HK1118761A (en) 2009-02-20

Family

ID=

Similar Documents

Publication Publication Date Title
US20080314512A1 (en) Device and Method for Coating a Metallic Support Material
US6893528B2 (en) Web material advance system for web material applicator
US5674345A (en) Linerless label printer applicator
DE102010054810B4 (en) Method for laminating a substrate plate with a plastic film
EP2651646B1 (en) Process and apparatus for laminating a substrate plate with a plastic film
EA010937B1 (en) Method for laminating flat support materials on substrate
US11628658B2 (en) Device for laminating a substrate with a thermoplastic coating material
US7005028B2 (en) Web material advance system for web material applicator
AU2019202920A1 (en) Large surface laminating system and method
US4039369A (en) Method and device for the uniform and even spraying of surfaces in a non-continuous production system
CN210619742U (en) Positioning cutter film-coated workpiece combination
CN101172780A (en) Method of depositing functional films on substrates such as glass sheets and film-coating machine for implementing said method
KR100544783B1 (en) How to coat metal substrate with thermoplastic coating material
HK1118761A (en) Device and method for coating a metallic support material
JPH07171472A (en) Thin metal plate for can body consisting of three part and method and device for coating inside and/or outside of said thin metal plate
WO2021074764A1 (en) A device and a method for bonding labels to sack workpieces
US20100038021A1 (en) Device and method for applying decoration, which adheres to a film, to a multidimentional object
IES20030889A2 (en) A method of embossing a PVC coated fabric material