EP1951436A1 - Coating device comprising flowing coating material for smooth or structured surfaces - Google Patents

Coating device comprising flowing coating material for smooth or structured surfaces

Info

Publication number
EP1951436A1
EP1951436A1 EP05823515A EP05823515A EP1951436A1 EP 1951436 A1 EP1951436 A1 EP 1951436A1 EP 05823515 A EP05823515 A EP 05823515A EP 05823515 A EP05823515 A EP 05823515A EP 1951436 A1 EP1951436 A1 EP 1951436A1
Authority
EP
European Patent Office
Prior art keywords
coating
web
coating material
transport
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05823515A
Other languages
German (de)
French (fr)
Other versions
EP1951436B1 (en
Inventor
Dieter DÖHRING
Udo Hanitzsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lignum Technologies AG
Original Assignee
Kronospan Technical Co Ltd
Theodor Hymmen 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36666814&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1951436(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kronospan Technical Co Ltd, Theodor Hymmen Holding GmbH filed Critical Kronospan Technical Co Ltd
Priority to PL05823515T priority Critical patent/PL1951436T3/en
Publication of EP1951436A1 publication Critical patent/EP1951436A1/en
Application granted granted Critical
Publication of EP1951436B1 publication Critical patent/EP1951436B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/14—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a travelling band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/542—No clear coat specified the two layers being cured or baked together
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/10—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of wood or with an outer layer of wood
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • E04F15/045—Layered panels only of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/003—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating incorporating means for heating or cooling the liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2252/00—Sheets
    • B05D2252/04—Sheets of definite length in a continuous process
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31989—Of wood

Definitions

  • Coating system with flowable coating material for smooth or structured surfaces Coating system with flowable coating material for smooth or structured surfaces.
  • the invention relates to a device for the coating of plates in a pass
  • a device for coating plates in a continuous flow emerges.
  • Several plates are arranged on a conveyor belt, which are fed individually one after the other, among other things, to coating stations.
  • a coating station includes an application roller with which a varnish is applied to a plate.
  • a post-processing device with which the varnish is cured, for example with UV radiation.
  • the application roller can comprise a structured surface in order to apply varnished structure to the surface of a plate
  • An optical pattern is detected on the surface of a plate by an optical scanning device.
  • the information obtained is used to synchronize a spatial structure of the lacquer with the optical pattern
  • Document DE 20 2004 01 8 71 0 U 1 also shows a coating of workpieces such as plates, which is provided with an adhesion promoter layer and a primer layer. There is a printing layer thereon which represents a decor. A lacquer layer is arranged above the decor A so-called filled varnish can be used. This is understood to mean varnishes that are extremely fine Contain solid particles such as corundum with diameters in the nanometer range,
  • DE 1 03 58 1 90 A1 discloses a method for controlling printing presses. Furniture plates are printed with the device known from this.
  • the object of the invention is to provide a device for coating a plate
  • the device comprises transport means for the transport of plates, the device comprises a feed device with which coating material can be brought onto the surface of the plate. Following the feed device, means for drying and / or hardening the material are above the plate Coating material provided.
  • the device according to the invention comprises means for placing a material web between the means of transport for the transport of plates and the means for drying and / or Hard to be able to drive through
  • the surface of the coating material can be provided with a structure without having to exert great pressure, since the coating material is dried and / or hardened in this state, so it is possible to coat a plate with a structured surface, without this as in the prior art known from the publication DE 20 2004 01 8 71 0 U l, either having to use a press or a complex printing unit.
  • a coating carried out in several steps can also be uniformly dried and / or cured in one work step. Above all, it is possible for a chemical network to extend through the entire structure of the layer, which leads to a particularly stable coating.
  • the feed device comprises a collecting device for the coating material, which is arranged adjacent to the transport means for the transport of the plates.
  • the collecting device also borders on a roller for the transport of the material web.
  • the collecting device is designed in such a way that liquid , Coating material located in the collecting device flows to the roller. It is achieved in this way that, with a sufficiently large filling of the collecting device, liquid coating material can completely coat a material web with a liquid film when a material web is transported over the roller. Overall, with sufficient supply of liquid coating material, it can be achieved that the liquid coating material completely fills the space between the surface of a plate and the material web located above it. No air then gets into the area particularly reliably.
  • Curing can thus be carried out particularly reliably with the exclusion of air, With this embodiment it is also possible to apply relatively thick layers of lacquer with a total thickness of, for example, 80 to 1 00 ⁇ m thickness and to dry and harden them uniformly. This in turn enables relatively thick abrasion-resistant particles such as corundum with a diameter of up to 1 00 embed within the paint. Since the abrasion resistance increases with the diameter of the abrasion-resistant particles, a relatively high abrasion resistance can be achieved in this way. With increasing diameter of the abrasion-resistant particles, the amount of abrasion material can also be reduced at the same time. This improves both the abrasion values and the transparency of the abrasion-resistant coating,
  • the means for transporting plates comprise a rotating conveyor belt on which the plates are placed for transport.
  • the material web is unrolled from a roller, guided over further rollers parallel to the surface of plates that are transported, and then rolled up again by a roller.
  • an exchange of the material web is sufficient , if a surface structure is to be changed or if a structure on the material web is damaged, for example due to signs of wear, the use of a material web can also ensure a consistent quality of a surface structure created, because unlike a roller with a structured surface, it rolls off the quality of the surface of the material web that produces the structure is not changed.
  • the rollers for the transport of a material web are arranged in such a way that they resemble a funnel in cross-section with the collecting device.
  • the coating material is then finally fed to the surface of a plate via a gap. This further ensures the correct supply of coating material between the material web and the surface of the plate to be coated.
  • the width of the aforementioned gap can be changed. This serves to control the amount of coating material that is fed to the surface of a plate.
  • the gap can also be closed in order to be able to control the time of the supply.
  • FIG. 1 shows a device with which a carrier material 6, for example a chipboard, MDF or HDF board, can be coated in one pass.
  • a carrier material 6 for example a chipboard, MDF or HDF board
  • UV or electron beam crosslinkable, flowable systems with suitable viscosity are preferably used as coating materials
  • a carrier material 6 is fed and coated with a flowable material 8.
  • the coating is carried out via a collecting device 5, which borders on a roller 4.
  • a sheet-like material namely a film 3 which is transparent to UV light and / or electron radiation and is radiation-resistant, is guided over the roller 4.
  • the film has a smooth surface facing the coating material 8 if the coating 8 is to have a smooth surface.
  • the corresponding surface of the film 3 is structured turiert, if the coating 8 should have a structured surface,
  • the web-like material or the film 3 is unwound from a supply roll or supply roll 1 and finally rolled up again on a roll 2. Between the roll 1 and the roll 4 there are three further rolls with a relatively small diameter along the transport path for the sheet-like material 3 , which serve to guide the sheet material.
  • the coating material 8 for example a lacquer, is suitably placed between the carrier material 6 and the web-shaped material 3 via this funnel shape,
  • the inlet which is funnel-shaped in cross section, opens into a gap, the gap width can be changed in order to be able to control the supply of coating material in such a way
  • roller 4 and the roller 2 there are four further guide rollers with a relatively small diameter, which serve to guide the web-shaped material from the roller 4 to the roller 2.
  • the first guide roller 10 - from the roller 4 in the transport direction of the web-shaped material seen - together with the roller 4 causes the web-shaped material to be guided parallel to the surface of the carrier material 6.
  • the device is used to align a sheet-like smooth or structured material 3 at the same time from the supply roll 1 both in the longitudinal direction and in the transverse direction and to apply it to the still liquid coating material in synchronism with the carrier material 6 by means of the roller 4 and the collecting device 5.
  • the aim of the alignment of the web-shaped material is to synchronize certain points of the carrier material 6 with certain points of the web-shaped material suitably one above the other. For this purpose, the speed of a carrier material or a plate 6 with measuring devices is measured in one embodiment of the invention.
  • Optical measuring devices are preferably used to determine the speed of the carrier material.
  • the speed of rotation is recorded by at least one roller or roller, which is involved in the transport of the web-shaped material.
  • the information obtained in this way about the transport speed of each plate 6 and the transport speed of the web-like material are used for control. The two speeds are thus controlled so that a plate is brought together with the web-like material in order to be able to structure a surface in a targeted manner.
  • the web-shaped material has, for example, optical markings which are detected with optical sensors.
  • the transport of the web-shaped material and / or the transport of the plates ⁇ are controlled in such a way that a plate is coated as a function of such an optical marking and the coating is structured as a function of these optical markings.
  • the carrier material with the liquid coating material and the sheet-like material lying thereon then passes through the hardening station 7.
  • the liquid coating material 8 is crosslinked and changes into a solid state.
  • the surface structure of the linear material is fixed and imaged in the hardened layer,
  • the web-like material is drawn off from the hardened solid coating material and wound up again into a roll.
  • a plurality of supply rolls 1 and winding rolls 2 are provided for the web-shaped material.
  • the supply rolls and the take-up rolls can be endlessly connected to one another during production by a device without a stop,
  • connection is preferably made at speeds up to a maximum of 1 20 m / min.
  • the respective film take-up station which is at rest, is loaded with a roll of the sheet-like material and the automatic connection is prepared by sticking a double-sided adhesive tape onto the start of the sheet, the beginning of the web-shaped material is inserted into a gap which serves for the connection, the web-shaped material that is currently being rolled is also guided through this gap, the connection is automatically drawn by electronically recording the running meter of the roll from which the web-shaped material is being rolled, or sensory detection of the associated end of a web-shaped material, before the joining, the running web-shaped material is stored in a dancer device working as a web store, the driven roller is reduced to an alternating speed of approx.
  • the device for the automatic connection comprises at least two unwinding stations with folding bearings and pneumatic tensioning shafts.
  • the unwinds are driven by a servomotor each. Means are available in order to be able to automatically distribute trolleys with the foils or sheet-like materials.
  • the actual connecting device comprises four pneumatically operated ironing rollers. There are also two cut-off knives for cutting off the web-like material after connection.
  • the carrier material or a plate 6 is first passed through the two rotating rollers 4 and 11 arranged one above the other and transported in this way. From here, the carrier material 6 arrives at a conveyor belt 12, which transports the carrier material further, the web-like material or the film 3 and the carrier material 6 are transported at the same speed,
  • the distance between the two rollers 4 and 11 can be changed in order to be able to vary the thickness of the coating.
  • the height of the guide roller 10 can also be changed in order to be able to influence the thickness of the coating.

Abstract

The sheet (6) guided on a conveying device is first coated with a fluid material (8) guided through a receptacle (5) formed by a foil (3) and two pulleys (4,13) of different diameters. The plane or structured foil (3) is removed from a first drum (1), positioned on top of the coating (8) and the sheet (6) guided to a drying and hardening unit (7). The position of the plane or structured foil (3) is controlled with speed sensors in order to synchronize the motion of the sheet (6) and the foil (3). After passing the drying device (7) the foil is wound up on a second drum (2).

Description

Beschichtungsαnlαge mit fließfαhigem Beschichtungsmαteriαl für glatte oder strukturierte Oberflächen. Coating system with flowable coating material for smooth or structured surfaces.
Die Erfindung betrifft eine Vorrichtung für die Beschichtung von Platten im DurchlaufThe invention relates to a device for the coating of plates in a pass
Aus der Druckschrift DE 20 2004 01 8 71 0 U l geht eine Vorrichtung für die Beschichtung von Platten im Durchlauf hervor Mehrere Platten werden auf einem Forderband angeordnet, die einzeln der Reihe nach u a Be- Schichtungsstationen zugeführt werden Eine solche Beschichtungsstation umfasst eine Auftragswalze, mit der ein Lack auf eine Platte aufgebracht wird Hieran schließt sich eine Nachbearbeitungsvorrichtung an, mit der der Lack beispielsweise mit einer UV-Strahlung ausgehartet wird Die Auftragswalze kann eine strukturierte Oberflache umfassen, um Lack struktu- πert auf die Oberflache einer Platte aufzutragenFrom the document DE 20 2004 01 8 71 0 U l a device for coating plates in a continuous flow emerges. Several plates are arranged on a conveyor belt, which are fed individually one after the other, among other things, to coating stations. Such a coating station includes an application roller with which a varnish is applied to a plate. This is followed by a post-processing device with which the varnish is cured, for example with UV radiation. The application roller can comprise a structured surface in order to apply varnished structure to the surface of a plate
Aus der DE 20 2004 01 8 71 0 U l ist auch bekannt, Lack durch eine Strahldrucktechnik, die insbesondere bei Tintenstrahldruckern weit verbreitet ist, strukturiert auf eine Oberflache einer Platte aufzubringen Hieran schließt sich wiederum eine Nachbearbeitungsvorrichtung an, mit der die Beschichtung ausgehartet werden kannFrom DE 20 2004 01 8 71 0 U l it is also known to apply lacquer to a surface of a plate in a structured manner by means of a jet printing technique, which is particularly widespread in ink jet printers. This is in turn followed by a post-processing device with which the coating can be cured
Durch eine optische Abtastvorrichtung wird ein optisches Muster auf der Oberflache einer Platte erfasst Die gewonnen Informationen werden ge- nutzt, um eine räumliche Strukturierung des Lacks mit dem optischen Muster zu synchronisierenAn optical pattern is detected on the surface of a plate by an optical scanning device. The information obtained is used to synchronize a spatial structure of the lacquer with the optical pattern
Aus der Druckschrift DE 20 2004 01 8 71 0 U l geht ferner eine Beschichtung von Werkstucken wie Platten hervor, die mit einer Haftvermittler- schicht und einer Grundierungsschicht versehen ist Hierauf befindet sich eine Druckschicht, die ein Dekor darstellt Oberhalb des Dekors ist eine Lackschicht angeordnet Es kann ein sogenannter gefüllter Lack verwendet werden Hierunter sind solche Lacke zu verstehen, die extrem feine Festkorperpαrtikel wie Korund mit Durchmessern im Nαnometerbereich enthalten ,Document DE 20 2004 01 8 71 0 U 1 also shows a coating of workpieces such as plates, which is provided with an adhesion promoter layer and a primer layer. There is a printing layer thereon which represents a decor. A lacquer layer is arranged above the decor A so-called filled varnish can be used. This is understood to mean varnishes that are extremely fine Contain solid particles such as corundum with diameters in the nanometer range,
Aus der DE 1 03 58 1 90 Al geht ein Verfahren zur Steuerung von Druckma- schinen hervor. Mit der hieraus bekannten Vorrichtung werden Mobelplat- ten bedruckt.DE 1 03 58 1 90 A1 discloses a method for controlling printing presses. Furniture plates are printed with the device known from this.
Aufgabe der Erfindung ist die Schaffung einer Vorrichtung für das Beschichten einer Platte,The object of the invention is to provide a device for coating a plate,
Die Aufgabe wird durch eine Vorrichtung mit den Merkmalen nach An- spruch 1 gelost, Vorteilhafte Ausgestaltungen ergeben sich aus den Un- teranspruchen ,The object is achieved by a device with the features according to claim 1. Advantageous refinements result from the subclaims,
Zur Losung der Aufgabe umfasst die Vorrichtung Transportmittel für den Transport von Platten, Die Vorrichtung umfasst eine Zufuhrungsemrich- tung, mit der Beschichtungsmaterial auf die Plattenoberflache gebracht werden kann, Im Anschluss an die Zufuhrungseinrichtung sind oberhalb der Platte Mittel für das Trocknen und / oder Harten des Beschichtungs- materials vorgesehen, Im Unterschied zum eingangs genannten Stand der Technik DE 20 2004 01 8 71 0 U l umfasst die erfindungsgemaße Vor- richtung Mittel, um eine Materialbahn zwischen den Transportmitteln für den Transport von Platten und den Mitteln für das Trocknen und/ oder Harten hindurchfuhren zu können ,To solve the problem, the device comprises transport means for the transport of plates, the device comprises a feed device with which coating material can be brought onto the surface of the plate. Following the feed device, means for drying and / or hardening the material are above the plate Coating material provided. In contrast to the prior art mentioned at the beginning DE 20 2004 01 8 71 0 U l, the device according to the invention comprises means for placing a material web between the means of transport for the transport of plates and the means for drying and / or Hard to be able to drive through
Wird eine Materialbahn mit strukturierter Oberflache eingesetzt, so kann die Oberflache des Beschichtungsmaterials mit einer Struktur versehen werden, ohne großen Druck ausüben zu müssen, Da das Beschichtungsmaterial in diesem Zustand getrocknet und/ oder gehartet wird, gelingt so das Beschichten einer Platte mit strukturierter Oberflache, ohne hierfür wie beim aus der Druckschrift DE 20 2004 01 8 71 0 U l bekannten Stand der Technik entweder eine Presse einsetzen zu müssen oder aber ein aufwendiges Druckwerk. Auch kann eine in mehreren Schritten vorgenommene Beschichtung so in einem Arbeitsschritt einheitlich getrocknet und/ oder gehartet werden, Vor allem ist es so möglich, dass ein chemisches Netzwerk sich durch den gesamten Aufbau der Schicht erstreckt, was zu einer besonders stabilen Beschichtung fuhrt.If a material web with a structured surface is used, the surface of the coating material can be provided with a structure without having to exert great pressure, since the coating material is dried and / or hardened in this state, so it is possible to coat a plate with a structured surface, without this as in the prior art known from the publication DE 20 2004 01 8 71 0 U l, either having to use a press or a complex printing unit. A coating carried out in several steps can also be uniformly dried and / or cured in one work step. Above all, it is possible for a chemical network to extend through the entire structure of the layer, which leads to a particularly stable coating.
Wird eine Mateπalbahn mit glatter Oberflache eingesetzt, so ist so ein Trocknen und / oder Harten unter Luftabschluss möglich, Ein Trocknen und / oder Harten unter Luftabschluss ist vielfach gewünscht, so zum Beispiel um im Fall einer Härtung eines Lacks mit UV-Licht eine besonders große Vernetzung, also einen besonders großen Umsatz an Doppelbindungen innerhalb des Lacks zu erzielen, Im Fall einer Härtung mit Elektronenstrah- len ist ein Luftabschluss in der Regel erforderlich ,If a material web with a smooth surface is used, drying and / or hardening with the exclusion of air is possible Crosslinking, ie to achieve a particularly high turnover of double bonds within the lacquer. In the case of curing with electron beams, an air seal is generally necessary,
In einer Ausfuhrungsform der Erfindung umfasst die Zufuhrungseinrichtung eine Auffangeinrichtung für das Beschichtungsmaterial, die angrenzend an die Transportmittel für den Transport der Platten angeordnet ist, Die Auffangeinrichtung grenzt des weiteren an eine Walze für den Transport der Materialbahn an, Die Auffangeinrichtung ist so beschaffen, dass flussiges, in der Auffangeinrichtung befindliches Beschichtungsmaterial zur Walze fließt. Es wird so erreicht, dass bei hinreichend großer Befüllung der Auffangeinrichtung flussiges Beschichtungsmaterial vollständig eine Mateπalbahn mit einem Flussigkeitsfilm zu überziehen vermag, wenn eine Materialbahn über die Walze transportiert wird . Insgesamt kann so bei hinreichender Zufuhr von flussigem Beschichtungsmaterial erreicht werden, dass das flussige Beschichtungsmaterial vollständig den Raum zwischen der Oberflache einer Platte und der darüber befindlichen Mateπ- albahn ausfüllt. Es gelangt dann besonders zuverlässig keine Luft in den Bereich . Eine Härtung kann so besonders zuverlässig unter Luftabschluss durchgeführt werden, Auch ist es bei dieser Ausfuhrungsform möglich, relativ dicke Lackschichten mit einer Gesamtdicke von beispielsweise 80 bis 1 00 μm Dicke aufzutragen und einheitlich zu trocknen sowie zu harten, Dies wiederum ermöglicht es, relativ dicke abriebfeste Partikel wie Korund mit einem Durchmesser von bis zu 1 00 μm innerhalb des Lacks einzubetten . Da mit dem Durchmesser der abriebfesten Partikel die Abriebfestigkeit zunimmt, kann so eine relativ hohe Abriebfestigkeit erreicht werden . Mit zunehmenden Durchmesser der abriebfesten Partikel kann zugleich dennoch auch die Menge an Abriebmaterial gesenkt werden, Es gelingt so sowohl eine Verbesserung von Abriebwerten als auch eine Verbesserung der Transparenz der abriebfesten Beschichtung ,In one embodiment of the invention, the feed device comprises a collecting device for the coating material, which is arranged adjacent to the transport means for the transport of the plates. The collecting device also borders on a roller for the transport of the material web. The collecting device is designed in such a way that liquid , Coating material located in the collecting device flows to the roller. It is achieved in this way that, with a sufficiently large filling of the collecting device, liquid coating material can completely coat a material web with a liquid film when a material web is transported over the roller. Overall, with sufficient supply of liquid coating material, it can be achieved that the liquid coating material completely fills the space between the surface of a plate and the material web located above it. No air then gets into the area particularly reliably. Curing can thus be carried out particularly reliably with the exclusion of air, With this embodiment it is also possible to apply relatively thick layers of lacquer with a total thickness of, for example, 80 to 1 00 μm thickness and to dry and harden them uniformly. This in turn enables relatively thick abrasion-resistant particles such as corundum with a diameter of up to 1 00 embed within the paint. Since the abrasion resistance increases with the diameter of the abrasion-resistant particles, a relatively high abrasion resistance can be achieved in this way. With increasing diameter of the abrasion-resistant particles, the amount of abrasion material can also be reduced at the same time. This improves both the abrasion values and the transparency of the abrasion-resistant coating,
In einer Ausfuhrungsform der Erfindung umfassen die Mittel für den Transport von Platten ein umlaufendes Transportband, auf das die Platten für den Transport abgelegt werden,In one embodiment of the invention, the means for transporting plates comprise a rotating conveyor belt on which the plates are placed for transport.
In einer Ausfuhrungsform der Erfindung wird die Materialbahn von einer Walze abgerollt, über weitere Walzen parallel zur Oberflache von Platten gefuhrt, die transportiert werden, und dann wieder von einer Walze auf- gerollt, Im Unterschied zum eingangs genannten Stand der Technik genügt ein Austausch der Materialbahn, wenn eine Oberflachenstruktur verändert werden soll oder aber wenn eine Struktur auf der Materialbahn Beschädigungen beispielsweise aufgrund von Verschleißerscheinungen aufweist, Durch den Einsatz einer Materialbahn kann außerdem eine gleichbleibende Qualität einer erzeugten Oberflachenstruktur sichergestellt werden, da im Unterschied zu einer Walze mit strukturierter Oberflache mit dem Abrollen der Materialbahn die Qualität der Oberflache der Materialbahn nicht verändert wird, die die Struktur erzeugt, Hinzu kommt, dass die Struktur in der Oberflache der Beschichtung praktisch drucklos erzeugt wird, so dass die Oberflache der Materialbahn auch aus diesem Grund praktisch keiner Verschleißerscheinung unterliegt, In einer Ausfuhrungsform der Erfindung sind die Walzen für den Transport einer Materialbahn so angeordnet, dass diese mit der Auffangeinrichtung im Querschnitt einem Trichter gleichen . Die Zufuhrung von Beschich- tungsmateπal zur Oberflache einer Platte erfolgt dann schließlich über einen Spalt. Hierdurch wird die ordnungsgemäße Zufuhr von Beschlch- tungsmateπal zwischen die Materiaibahn und Oberflache der zu beschichtenden Platte weiter verbessert sichergestellt.In one embodiment of the invention, the material web is unrolled from a roller, guided over further rollers parallel to the surface of plates that are transported, and then rolled up again by a roller. In contrast to the prior art mentioned at the beginning, an exchange of the material web is sufficient , if a surface structure is to be changed or if a structure on the material web is damaged, for example due to signs of wear, the use of a material web can also ensure a consistent quality of a surface structure created, because unlike a roller with a structured surface, it rolls off the quality of the surface of the material web that produces the structure is not changed. In addition, the structure in the surface of the coating is produced practically without pressure, so that the surface of the material web is also practical for this reason is not subject to wear, In one embodiment of the invention, the rollers for the transport of a material web are arranged in such a way that they resemble a funnel in cross-section with the collecting device. The coating material is then finally fed to the surface of a plate via a gap. This further ensures the correct supply of coating material between the material web and the surface of the plate to be coated.
In einer Ausfuhrungsform kann die Breite des vorgenannten Spalts veran- dert werden , Dies dient zur Steuerung der Menge an Beschichtungsmate- rial, die zur Oberflache einer Platte gefuhrt wird. Auch kann der Spalt in einer Ausfuhrungsform geschlossen werden, um so den Zeitpunkt der Zufuhrung steuern zu können .In one embodiment, the width of the aforementioned gap can be changed. This serves to control the amount of coating material that is fed to the surface of a plate. In one embodiment, the gap can also be closed in order to be able to control the time of the supply.
Nachfolgend wird die Erfindung anhand der Figur 1 naher erläutert.The invention is explained in more detail below with reference to FIG. 1.
Figur 1 zeigt eine Vorrichtung, mit der ein Tragermaterial 6 , so zum Bei- spiel eine Span -, MDF- oder HDF Platte im Durchlauf beschichtet werden kann . Als Beschichtungsmaterialien werden vorzugsweise UV- oder Elektronenstrahl- vernetzbare, fließfahige Systeme mit geeigneter Viskosität verwendet,FIG. 1 shows a device with which a carrier material 6, for example a chipboard, MDF or HDF board, can be coated in one pass. UV or electron beam crosslinkable, flowable systems with suitable viscosity are preferably used as coating materials,
Eingangseltig der Beschichtungsanlage wird ein Tragermateπal 6 zugeführt und mit einem fließfahigem Material 8 beschichtet, Die Beschich- tung erfolgt über eine Auffangeinrichtung 5, die an eine Walze 4 grenzt. Ein bahnformiges Material und zwar eine für UV- Licht und/ oder Elektronenstrahlung durchlassige sowie strahlungsresistente Folie 3 wird über die Walze 4 gefuhrt, Die Folie weist eine glatte, dem Beschichtungsmaterial 8 zugewandte Oberflache auf, wenn die Beschichtung 8 eine glatte Oberflache aufweisen soll . Die entsprechende Oberflache der Folie 3 ist struk- turiert, wenn die Beschichtung 8 eine strukturierte Oberfläche aufweisen soll ,At the entrance to the coating system, a carrier material 6 is fed and coated with a flowable material 8. The coating is carried out via a collecting device 5, which borders on a roller 4. A sheet-like material, namely a film 3 which is transparent to UV light and / or electron radiation and is radiation-resistant, is guided over the roller 4. The film has a smooth surface facing the coating material 8 if the coating 8 is to have a smooth surface. The corresponding surface of the film 3 is structured turiert, if the coating 8 should have a structured surface,
Das bahnformige Material bzw, die Folie 3 wird von einer Vorratsrolle oder Vorratswalzewalze 1 abgerollt und schließlich auf einer Walze 2 wieder aufgerollt, Zwischen der Walze 1 und der Walze 4 gibt es entlang des Transportwegs für das bahnformige Material 3 drei weitere Walzen mit relativ kleinem Durchmesser, die der Fuhrung des bahnformigen Materials dienen . Die Zufuhrungswalze 1 3 mit dem kleinen Durchmesser, die benachbart zur Walze 4 angeordnet Ist, bewirkt gemeinsam mit der Walze 4, dass das bahnformige Material zusammen mit der Auffangeinrichtung 5 einen im Querschnitt trichterförmigen Einlass für Beschichtungsma- terial 8 bildet. Das Beschichtungsmaterial 8, so zum Beispiel ein Lack, wird über diese Trichterform geeignet zwischen das Tragermaterial 6 und bahnformiges Material 3 gebracht,The web-like material or the film 3 is unwound from a supply roll or supply roll 1 and finally rolled up again on a roll 2. Between the roll 1 and the roll 4 there are three further rolls with a relatively small diameter along the transport path for the sheet-like material 3 , which serve to guide the sheet material. The feed roller 1 3 with the small diameter, which is arranged adjacent to the roller 4, together with the roller 4, causes the web-shaped material together with the collecting device 5 to form an inlet for coating material 8 which is funnel-shaped in cross section. The coating material 8, for example a lacquer, is suitably placed between the carrier material 6 and the web-shaped material 3 via this funnel shape,
Der im Querschnitt trichterförmige Einlass mundet in einen Spalt, Die Spaltbreite kann geändert werden, um die Zufuhr an Beschichtungsmaterial so steuern zu können,The inlet, which is funnel-shaped in cross section, opens into a gap, the gap width can be changed in order to be able to control the supply of coating material in such a way
Zwischen der Walze 4 und der Walze 2 gibt es vier weitere Fuhrungswal- zen mit relativ kleinem Durchmesser, die der Fuhrung des bahnformigen Materials von der Walze 4 zur Walze 2 dienen, Die erste Fuhrungswalze 1 0 - von der Walze 4 in Transportrichtung des bahnformigen Materials ge- sehen - bewirkt zusammen mit der Walze 4, dass das bahnformige Material parallel zur Oberflache des Tragermaterials 6 gefuhrt wird .Between the roller 4 and the roller 2 there are four further guide rollers with a relatively small diameter, which serve to guide the web-shaped material from the roller 4 to the roller 2. The first guide roller 10 - from the roller 4 in the transport direction of the web-shaped material seen - together with the roller 4 causes the web-shaped material to be guided parallel to the surface of the carrier material 6.
Zwischen der Walze 4 und der Walze 1 0 gibt es oberhalb der Folie 3 Einrichtungen 7, mit denen das darunter befindliche Beschichtungsmaterial getrocknet und / oder gehartet werden kann. Es handelt sich vor allem um Einrichtungen für das Harten mit UV-Licht oder Elektronenstrahlen. Mit der Vorrichtung wird wahrend des Beschichtungsvorgangs ein bahn- formiges glattes oder strukturiertes Material 3 zeitgleich von der Vorratsrolle 1 sowohl in Längsrichtung als auch in Querrichtung passend ausgerichtet und synchron zum Tragermaterial 6 mitteis der Walze 4 und der Auffangeinrichtung 5 auf das noch flussige Beschichtungsmaterial appliziert. Ziel der Ausrichtung des bahnformigen Materials ist es, bestimmte Punkte des Tragermaterials 6 mit bestimmten Punkten des bahnformigen Materials passend übereinander zu synchronisieren, Zu diesem Zweck wird in einer Ausfuhrungsform der Erfindung die Geschwindigkeit eines Tragermateπals bzw. einer Platte 6 mit Messeinrichtungen gemessen. Vorzugsweise werden optische Messeinrichtungen eingesetzt, um die Geschwindigkeit des Tragermaterials zu ermitteln. Beispielsweise mit Hilfe von elektronischen oder magnetischen Sensoren wird die Drehgeschwindigkeit von wenigstens einer Walze bzw. Rolle erfasst, die an dem Trans- port des bahnformigen Materials beteiligt ist. Die so gewonnen Informationen über Transportgeschwindigkeit einer jeden Platte 6 und Transportgeschwindigkeit des bahnformigen Materials werden zur Steuerung genutzt, Die beiden Geschwindigkeiten werden also so gesteuert, dass eine Platte definiert mit dem bahnformigen Material zusammengebracht wird, um so eine Oberflache gezielt strukturieren zu können.Between the roller 4 and the roller 10 there are devices 7 above the film 3 with which the coating material located below can be dried and / or cured. These are primarily devices for hardening with UV light or electron beams. During the coating process, the device is used to align a sheet-like smooth or structured material 3 at the same time from the supply roll 1 both in the longitudinal direction and in the transverse direction and to apply it to the still liquid coating material in synchronism with the carrier material 6 by means of the roller 4 and the collecting device 5. The aim of the alignment of the web-shaped material is to synchronize certain points of the carrier material 6 with certain points of the web-shaped material suitably one above the other. For this purpose, the speed of a carrier material or a plate 6 with measuring devices is measured in one embodiment of the invention. Optical measuring devices are preferably used to determine the speed of the carrier material. For example, with the help of electronic or magnetic sensors, the speed of rotation is recorded by at least one roller or roller, which is involved in the transport of the web-shaped material. The information obtained in this way about the transport speed of each plate 6 and the transport speed of the web-like material are used for control. The two speeds are thus controlled so that a plate is brought together with the web-like material in order to be able to structure a surface in a targeted manner.
In einer Ausfuhrungsform der Erfindung weist das bahnformige Material beispielsweise optische Markierungen auf, die mit optischen Sensoren erfasst werden. Der Transport des bahnformigen Materials und / oder der Transport der Platten ό werden so gesteuert, dass eine Platte in Abhängigkeit von einer solchen optischen Markierung beschichtet und die Be- schichtung in Abhängigkeit von diesen optischen Markierungen strukturiert wird.In one embodiment of the invention, the web-shaped material has, for example, optical markings which are detected with optical sensors. The transport of the web-shaped material and / or the transport of the plates ό are controlled in such a way that a plate is coated as a function of such an optical marking and the coating is structured as a function of these optical markings.
Das Tragermaterial mit dem flussigen Beschichtungsmaterial und dem aufliegendem bahnformigen Material durchlauft anschließend die Aushartstation 7. In dieser wird das flussige Beschichtungsmaterial 8 vernetzt und geht in einen festen Zustand über, Dabei wird wahrend des Aushar- tungsvorgαngs die Oberflächenstruktur des bαhnformigen Materials in der ausgeharteten Schicht fixiert und abgebildet,The carrier material with the liquid coating material and the sheet-like material lying thereon then passes through the hardening station 7. In this, the liquid coating material 8 is crosslinked and changes into a solid state. the surface structure of the linear material is fixed and imaged in the hardened layer,
Ausgangseitig der Beschichtungsanlage wird das bahnformige Material von dem ausgehärtetem festen Beschichtungsmaterial abgezogen und wieder zu einer Rolle aufgewickelt.On the exit side of the coating system, the web-like material is drawn off from the hardened solid coating material and wound up again into a roll.
Es ist weiterhin in einer in Figur 2 gezeigten Ausfuhrungsform vorgesehen, dass für das bahnformige Material mehrere Vorratsrollen 1 und Aufwlckel- rollen 2 vorhanden sind. Die Vorratsrollen und die Aufwickelrollen können wahrend der laufenden Produktion durch eine Einrichtung ohne Stopp untereinander endlos verbunden werden ,It is furthermore provided in an embodiment shown in FIG. 2 that a plurality of supply rolls 1 and winding rolls 2 are provided for the web-shaped material. The supply rolls and the take-up rolls can be endlessly connected to one another during production by a device without a stop,
Das Verbinden erfolgt aus Praktikabilitatsgrunden vorzugsweise bei Ge- schwindigkeiten bis maximal 1 20 m/min, Die jeweilige in Ruhestellung befindliche Folienaufnahmestation wird mit einer Rolle des bahnformigen Materials beschickt und die automatische Verbindung vorbereitet, indem ein doppelseitiges Klebeband auf den Bahnanfang aufgeklebt wird , Der Anfang des bahnformigen Materials wird in einen Spalt eingelegt, der dem Verbinden dient, Durch diesen Spalt wird zugleich das bahnformige Material gefuhrt, das aktuell abgerollt wird, Die Auslosung der Verbindung geschieht automatisch durch elektronische Erfassung der Laufmeter der Rolle, von der bahnformiges Material abgerollt wird, oder sensorische Erfassung des zugehörigen Endes eines bahnformigen Materials, Vor dem Verbinden wird das ablaufende bahnformige Material in einer als Bahnspeicher arbeitenden Tanzereinrichtung bevorratet, Die angetriebene Rolle wird auf eine Wechselgeschwindigkeit von ca , 1 5 m/ mm reduziert, Die zur Anlagengeschwindigkeit fehlende Lange des bahnformigen Materials zieht sich aus dem Tanzer heraus, Nach dem Verbindvorgang be- schleunigt die entsprechende Folienrolle wieder bis auf die maximale Geschwindigkeit von beispielsweise 1 20 m/min, bis die Tanzerwalze wieder ihre Arbeitsposition erreicht hat, Die Einrichtung für das automatische Verbinden umfasst wenigstens zwei Abwickeistationen mit Klapplagern und pneumatischen Spannwellen, Der Antrieb der Abwicklungen erfolgt durch je einen Servomotor. Mittel sind vorhanden, um Wagen mit den Folien bzw. bahnformigen Materialien au- tomatisch versteilen zu können. Die eigentliche Verbindeeinrichtung umfasst vier pneumatisch betätigte Mangelwalzen . Es gibt ferner zwei Trennmesser für das Abschneiden des bahnformigen Materials nach dem Verbinden , Eine automatische Bremskraftregulierung der Abwickelrollen ist vorhanden . Diese umfasst Tanzerwalzen, pneumatische proportional re- gelbare Linearzylinder mit Leit- und Umlenkwalzen und einer automatischen Risskontrolle,For practical reasons, the connection is preferably made at speeds up to a maximum of 1 20 m / min. The respective film take-up station, which is at rest, is loaded with a roll of the sheet-like material and the automatic connection is prepared by sticking a double-sided adhesive tape onto the start of the sheet, the beginning of the web-shaped material is inserted into a gap which serves for the connection, the web-shaped material that is currently being rolled is also guided through this gap, the connection is automatically drawn by electronically recording the running meter of the roll from which the web-shaped material is being rolled, or sensory detection of the associated end of a web-shaped material, before the joining, the running web-shaped material is stored in a dancer device working as a web store, the driven roller is reduced to an alternating speed of approx. 1 5 m / mm, the system The missing length of the web-shaped material pulls out of the dancer. After the connection process, the corresponding film roll accelerates again to the maximum speed of, for example, 1 20 m / min, until the dancer roller has reached its working position again. The device for the automatic connection comprises at least two unwinding stations with folding bearings and pneumatic tensioning shafts. The unwinds are driven by a servomotor each. Means are available in order to be able to automatically distribute trolleys with the foils or sheet-like materials. The actual connecting device comprises four pneumatically operated ironing rollers. There are also two cut-off knives for cutting off the web-like material after connection. There is an automatic braking force regulation of the unwinding rolls. This includes dance rollers, pneumatic proportional adjustable linear cylinders with guide and deflection rollers and an automatic crack control,
Das Tragermaterial bzw, eine Platte 6 wird zunächst durch die beiden übereinander angeordneten, sich drehenden Walzen 4 und 1 1 hindurch gefuhrt und so transportiert, Von hier aus gelangt das Tragermateπal 6 zu einem Transportband 1 2, welches das Tragermateπal weiter transportiert, Das bahnformige Material bzw. die Folie 3 und das Tragermaterial 6 werden mit gleicher Geschwindigkeit transportiert,The carrier material or a plate 6 is first passed through the two rotating rollers 4 and 11 arranged one above the other and transported in this way. From here, the carrier material 6 arrives at a conveyor belt 12, which transports the carrier material further, the web-like material or the film 3 and the carrier material 6 are transported at the same speed,
Der Abstand zwischen den beiden Walzen 4 und 1 1 kann verändert werden, um die Dicke der Beschichtung variieren zu können , In einer Ausfuhrungsform kann auch die Hohe der Fuhrungswalze 1 0 verändert werden, um Emfluss auf die Dicke der Beschichtung nehmen zu können, The distance between the two rollers 4 and 11 can be changed in order to be able to vary the thickness of the coating. In one embodiment, the height of the guide roller 10 can also be changed in order to be able to influence the thickness of the coating.

Claims

Patentansprüche Claims
1 , Vorrichtung mit1, device with
- Transportmitteln ( 1 1 , 1 2) für den Transport von Platten (6), einer Zufuhrungseinrichtung für die Zufuhrung von Beschich- tungsmaterial auf die Oberflache der Platte (ό), mit Mitteln für das Trocknen und / oder Harten ( 7 ) des auf die Oberflache der Platte (6) zugefuhrten Beschichtungsmateri- als,- Transport means (1 1, 1 2) for the transport of plates (6), a feed device for the supply of coating material to the surface of the plate (ό), with means for drying and / or hardening (7) the the surface of the coating material supplied to the plate (6),
gekennzeichnet durchmarked by
Mittel, mit denen eine Materialbahn (3) zwischen den Trans- portmitteln für den Transport von Platten (6) und den Mitteln für das Trocknen und / oder Harten ( 7) hindurchgefuhrt werden kann .Means with which a material web (3) can be passed between the transport means for the transport of plates (6) and the means for drying and / or hardening (7).
2. Vorrichtung nach Anspruch 1 , bei der die Zufuhrungseinrichtung eine Auffangeinrichtung (5) für das Beschichtungsmateπal (8) um- fasst, mit der Beschichtungsmaterial zwischen die Platte (6) und die Materialbahn gebracht werden kann .2. Device according to claim 1, in which the feed device comprises a collecting device (5) for the coating material (8) with which coating material can be brought between the plate (6) and the material web.
3. Vorrichtung nach Anspruch 1 oder 2 mit einer Materialbahn, die eine strukturierte Oberflache aufweist,3. Device according to claim 1 or 2 with a material web that has a structured surface,
4 , Vorrichtung nach einem der vorhergehenden Ansprüche mit ein oder mehreren Rollen ( 1 ) für das Abrollen der Materialbahn (3) so- wie ein oder mehrerer Rollen (2) für das Aufrollen der Materialbahn4, Device according to one of the preceding claims with one or more rollers (1) for rolling off the material web (3) and one or more rollers (2) for rolling up the material web
(3) . 5, Vorrichtung nach einem der vorhergehenden Ansprüche mit einer Auffangeinrichtung für Beschichtungsmaterial und derart angeordneten Walzen (4, 9) für den Transport der Materialbahn (3), dass diese mit der Auffangeinrichtung eine im Querschnitt tπchterforml- ge Zufuhrung für das Beschichtungsmaterial 8 zwischen Oberflache der Platte (6) und der Materialbahn (3) bildet,(3). 5, Device according to one of the preceding claims with a collecting device for coating material and rollers (4, 9) arranged in such a way for the transport of the material web (3) that this with the collecting device has a cross-sectional feed for the coating material 8 between the surface of the material Forms plate (6) and the material web (3),
ό. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der ein oder mehrere Walzen (4, 1 0, 1 1 ) angehoben und/ oder gesenkt werden können, um die Dicke der Beschichtung einstellen zu können .ό. Device according to one of the preceding claims, in which one or more rollers (4, 1 0, 1 1) can be raised and / or lowered in order to be able to adjust the thickness of the coating.
7 , Verfahren für das Beschichten einer Oberflache mit einer Vorrichtung nach einem der vorhergehenden Ansprüche, bei der Be- Schichtungsmaterial zwischen eine Materialbahn (3) und die Oberflache einer Platte (6) so zugeführt wird, dass keine Luft eingeschlossen wird und die Beschichtung dann mit UV-Licht oder Elektronenstrahlen gehartet wird.7, Method for coating a surface with a device according to one of the preceding claims, in which coating material is fed between a material web (3) and the surface of a plate (6) so that no air is trapped and the coating is then carried out UV light or electron beams is hardened.
8, Verfahren nach dem vorhergehenden Anspruch, bei dem das Beschichtungsmaterial einen durch UV-Licht oder Elektronenstrahlen hartbaren Lack umfasst. 8. The method according to the preceding claim, wherein the coating material comprises a lacquer that can be hardened by UV light or electron beams.
EP05823515A 2005-11-24 2005-11-24 Coating device comprising flowing coating material for smooth or structured surfaces Active EP1951436B1 (en)

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US20100212818A1 (en) 2010-08-26
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