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EP4297977A1 - Machine and method for treating a workpiece - Google Patents

Machine and method for treating a workpiece

Info

Publication number
EP4297977A1
EP4297977A1 EP22707738.5A EP22707738A EP4297977A1 EP 4297977 A1 EP4297977 A1 EP 4297977A1 EP 22707738 A EP22707738 A EP 22707738A EP 4297977 A1 EP4297977 A1 EP 4297977A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
coating material
paint
printing
structuring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22707738.5A
Other languages
German (de)
French (fr)
Inventor
Ludwig Albrecht
Peter Wulzinger
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.)
Homag GmbH
Original Assignee
Homag 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 Homag GmbH filed Critical Homag GmbH
Publication of EP4297977A1 publication Critical patent/EP4297977A1/en
Pending legal-status Critical Current

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
    • 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
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/10—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
    • 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
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/12—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • 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
    • B05D3/02—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 baking
    • B05D3/0254—After-treatment
    • B05D3/0263—After-treatment with IR heaters
    • 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
    • B05D3/12—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 mechanical means
    • 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
    • B05D3/14—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 electrical means
    • B05D3/141—Plasma treatment
    • B05D3/145—After-treatment
    • B05D3/148—After-treatment affecting the surface properties of 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/02—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough surface
    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B05D5/061—Special surface effect
    • 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
    • B05D7/53—Base coat plus clear coat type
    • B05D7/532—Base coat plus clear coat type the two layers being cured or baked together, i.e. wet on wet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
    • B41J11/00216—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation using infrared [IR] radiation or microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
    • 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
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • 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
    • B05D2201/00—Polymeric substrate or laminate
    • B05D2201/04—Laminate
    • 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
    • B05D2203/00—Other substrates
    • B05D2203/20—Wood or similar 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
    • 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
    • B05D3/002—Pretreatement
    • 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
    • B05D3/14—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 electrical means
    • B05D3/141—Plasma treatment
    • B05D3/142—Pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0041—Digital printing on surfaces other than ordinary paper
    • B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0082—Digital printing on bodies of particular shapes
    • B41M5/0088—Digital printing on bodies of particular shapes by ink-jet printing

Definitions

  • the invention relates to a device for tempering a workpiece, in particular a plate-shaped workpiece.
  • a workpiece which is used, for example, in the construction element and furniture industry, can be formed at least partially from wood or wood-based materials.
  • Plate-shaped workpieces such as boards or panels made of wood or wood-based materials, can be printed with an inkjet printer in order to customize or customize their external appearance.
  • the document EP 1726 443 A1 is known, in which a device for patterning the narrow sides of plate-shaped workpieces is described.
  • the device comprises a stationary printing unit, which has at least one stationary inkjet print head, each having a plurality of nozzle openings for ejecting ink, a conveyor device, by means of which the workpieces can be conveyed along the printing unit, a detection device arranged upstream of the printing unit for detecting the dimensions and/or the position of the narrow side to be patterned and/or the conveying speed of the workpieces on the conveying device, a memory device in which image data for the pattern to be applied to the narrow side is stored and a control device which communicates with the print heads, the detection device and the memory device and is set up to control the print heads in dependence on the detection data received from the detection device in such a way that ink is only ejected from nozzle openings in a print area whose height is in Essentially corresponds to the height of the narrow side to be sampled.
  • the object of the invention is to provide a device and a method with which a further improved appearance of the workpiece can be produced.
  • a corresponding device comprises the features according to claim 1. Further preferred embodiments are listed in the dependent claims.
  • the device comprises a coating device which is set up to apply a coating material, in particular a strip-shaped coating material, to a workpiece.
  • a coating material can be formed, in particular at least in sections, from a plastic material, from aluminum or from a veneer.
  • the device also includes a paint application device that is set up to apply paint to the coating material, and a structuring device that is set up to set a gloss value and/or haptic properties of the surface provided with paint.
  • the device according to the invention enables high-quality and at the same time cost-efficient production on an industrial scale.
  • a coating material can be applied to the workpiece in one operation and a surface can be adjusted between high gloss and dull matt.
  • the device also has the advantage that each workpiece can be designed individually.
  • the optical design of the workpieces can also be changed during ongoing operation.
  • the device also has a printing device for printing on a surface of the coating material. It is preferred that the printing device is arranged between the coating device and the paint application device.
  • the printing device comprises one or more print heads, it also being preferred that the print head or print heads is/are designed as inkjet print heads. This ensures precise printing and thus also an individual design. If several print heads are provided, multicolored printing can take place.
  • the paint application device can include a nozzle for a spray application, an inkjet print head and/or a roller.
  • the nozzle and the inkjet print head have the advantage that they work without contact. Applying paint with the roller, on the other hand, leads to contact between the roller and the workpiece, with the paint being pressed onto the workpiece.
  • the structuring device can be or comprise an excimer lamp, an IR lamp (infrared lamp), a microwave source and/or an LED source.
  • the effect on the paint surface causes the paint to polymerize, so that the surface is folded to a certain extent. This surface causes a diffuse reflection of the light.
  • the haptics are adjusted on the surface.
  • An excimer lamp has proven itself when creating deep matt surfaces with haptic effects if necessary.
  • a gloss value can also be set precisely using an infrared lamp, a microwave source and/or an LED source.
  • the device has a conveying device that is set up to move the workpiece in a throughput direction D.
  • a relatively high throughput can be achieved with a so-called continuous machine.
  • the conveyor device comprises a conveyor belt, a conveyor chain or a conveyor belt.
  • the device can include a processing unit that is set up for machining, in particular for formatting, the surface of the workpiece that is to be provided with the coating material.
  • the processing unit can include one or more processing units, in particular one or more milling units, with which machining can be carried out. For example, a flat surface can be produced with a processing unit of the processing unit.
  • the processing unit can include a processing unit in order to provide a radius or a chamfer on the workpiece, in particular on a narrow surface of the workpiece.
  • the device comprises a post-processing device which has a processing unit comprising a trimming unit, a scraper and/or a rotating processing tool.
  • the snipping unit and/or the scraper blade are intended to cut off a protruding coating material.
  • the processing unit can be designed as a form milling unit with which a Form milling can be performed on a rear or front edge of the workpiece.
  • the device can have a cleaning device which is set up to clean the coating material in particular before printing.
  • the cleaning device can include a circulating cloth that is moved relative to the coating material applied to the workpiece and thus removes processing residues, dust or the like from the coating material.
  • the device comprises a plasma treatment device which is set up to generate a plasma in order to blow it onto the coating material using compressed air. This prepares the surface for further processing.
  • An adhesion promoter (primer) can then be applied to the coating material using an adhesion promoter application device. Due to the surface prepared with the plasma treatment device, the adhesion promoter can adhere particularly well to the surface.
  • the invention relates to a method for tempering a workpiece, in particular a plate-shaped workpiece.
  • the method comprises the steps: applying a coating material, in particular strip-shaped, to a workpiece, applying a paint to the coating material, and structuring the surface of the paint to set a gloss value and/or a haptic property. It is preferred that the device described above is used as part of the method.
  • the coating material is in particular made of a plastic material, aluminum, at least in sections or a veneer, so that the process can be used in furniture production.
  • the method may further include the step of printing on a surface of the coating material.
  • the external appearance can be designed individually.
  • the surface of the coating material is printed in particular before the step of applying the lacquer to the coating material.
  • the paint is applied by means of a nozzle for a spray application, an inkjet print head and/or a roller.
  • the structuring takes place by means of an excimer lamp, an IR lamp, a microwave source and/or an LED source.
  • the surface of the workpiece to be coated is machined.
  • a flat surface can be produced.
  • a radius or a chamfer can be provided on the workpiece, in particular on a narrow surface of the workpiece.
  • the method can include post-processing of the coating material, in particular cutting, stripping and/or formatting of the coating material applied to the workpiece. Manufacturing can thus take place in one operation, in particular in one run.
  • the steps for tempering the workpiece take place in one pass.
  • a coating material can be applied to the workpiece in one operation and a surface between high gloss and be set to dull matt. This opens up individual design options.
  • FIG. 1 shows a schematic view of a device for printing workpieces according to an embodiment of the invention.
  • FIG. 1 shows a schematic side view of an embodiment of a device 1 according to the invention, which is used for printing on a narrow side of a panel-shaped workpiece.
  • a workpiece can be made at least partially from wood or wood-based materials.
  • it is a board or a panel for a piece of furniture, a floor or ceiling panel, a kitchen worktop or the like.
  • the device 1 In order to move the workpieces to be treated by the device 1, the device 1 has a conveyor device with which the workpieces can be moved in a direction D through the device 1.
  • the conveyor device is designed, for example, as a conveyor belt, conveyor chain or conveyor belt.
  • the device 1 can be equipped with a so-called upper pressure, with which the workpieces moved in the direction D are pressed against the conveying device.
  • the device 1 comprises an entry area 10 in which a workpiece can be inserted into the device 1 . It is also possible to place workpieces using a (not illustrated) feed device to the inlet area 10 to supply.
  • a processing unit 20 Adjacent to the entry area 10 there is a processing unit 20 which is set up for machining, in particular for formatting a narrow surface of a workpiece moved in the throughput direction D.
  • the processing unit 20 includes one or more processing units with which or with which a machining can be carried out. For example, a flat surface can be produced with a processing unit of the processing unit 20 .
  • the processing unit 20 can comprise a processing unit in order to provide a radius or a chamfer on a narrow surface of the workpiece.
  • the device 1 Downstream from the processing unit 20 in the throughput direction D, the device 1 comprises a coating device 30 which is set up to apply a strip-shaped coating material to the narrow surface of the plate-shaped workpiece processed by the processing unit 20 .
  • a coating material comprises either a pre-coated adhesive layer or an activatable portion, or the coating material and/or the edge of the workpiece is/are provided with an adhesive.
  • the coating device 30 is set up to press the coating material onto the narrow side of the workpiece.
  • a post-processing device 40 Subordinate to the coating device 30 is a post-processing device 40, with which a protruding section of the coating material can be removed and/or a termination of the coating material with the workpiece dimensions can be ensured.
  • the post-processing device 40 can include a snipping unit and/or a scraper, which is/are set up to cut off a protruding coating material.
  • the post-processing device 40 additionally includes a form milling unit with which form milling can be carried out on a rear or front narrow surface of the workpiece.
  • the device 1 also includes a cleaning device 50 in order to clean the workpiece, in particular the coated narrow surface of the workpiece, before further processing.
  • the cleaning device 50 can include a circulating cloth that is moved relative to the coating material applied to the narrow side of the workpiece and thus removes processing residues, dust or the like from the coating material.
  • the device 1 has a plasma treatment device 60, which is set up to generate a plasma, spatially separated from a high-voltage discharge, in order to blow it onto the coating material on the workpiece by means of compressed air.
  • the surface is slightly heated.
  • An adhesion promoter application device 70 with which an adhesion promoter (primer) is applied to the coating material is provided downstream of the plasma treatment device 60 in the throughput direction D. With the adhesion promoter application device 70, the surface of the coating material provided on the workpiece is prepared for subsequent printing, so that the surface has improved wetting and adhesion properties.
  • the print heads are designed as inkjet print heads and can apply a printing material (ink) to the surface to be printed.
  • the inkjet print head of the inkjet printing device 80 can carry out multicolored printing and for this purpose as colors Output black, magenta, yellow and cyan. These colors are appropriately combined with each other to apply a multicolored pattern by combining them.
  • a lacquer application device 90 is provided downstream of the inkjet printing device 80 in the throughput direction D, which lacquer application device can apply lacquer to the printed surface of the workpiece.
  • the paint application device 90 can include a nozzle for a spray application, an inkjet print head, or a roller.
  • a structuring device 100 comprising an excimer lamp is provided adjacent to the paint application device 90 .
  • the structuring device 100 can be used for targeted structuring of the paint that has not yet cured or has not fully cured, so that a specific gloss value and/or haptic properties of the surface can be adjusted.
  • the gloss value can be measured as a reflectometer value according to ISO 2813.
  • the use of the structuring device 100 creates a certain haptic and the paint is further cured.
  • An inspection device 110 which includes a camera, is also provided downstream in throughput direction D, in order to inspect the surface of the workpiece that has been coated with the aforementioned devices, in particular the printed surface of the coating material on the workpiece that has been coated with structuring device 100, and to assess the surface quality .
  • the device 1 has the advantage that the devices 20-100 mentioned are provided in one device, so that the workpiece can go through a large number of processing steps without further realignment and in particular in one setting. This increases the Reproducibility and the quality of the external appearance of the workpiece, since the respective processing steps can be precisely coordinated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Forests & Forestry (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention relates to a machine for treating an in particular flat workpiece, the machine comprising: a coating unit designed to apply to a workpiece an in particular strip-like coating material, a lacquer application unit designed to apply lacquer to the coating material, and a structuring unit designed to adjust a gloss value and/or a haptic property of the surface that is provided with the lacquer.

Description

Vorrichtung und Verfahren zur Vergütung eines Werkstücks Device and method for tempering a workpiece
Technisches Gebiet technical field
Die Erfindung betrifft eine Vorrichtung zum Vergüten eines, insbesondere plattenförmigen, Werkstücks. Ein solches Werkstück, das beispielsweise im Bereich der Bauelemente- und Möbelindustrie zum Einsatz kommt, kann zumindest teilweise aus Holz oder Holzwerkstoffen gebildet sein. The invention relates to a device for tempering a workpiece, in particular a plate-shaped workpiece. Such a workpiece, which is used, for example, in the construction element and furniture industry, can be formed at least partially from wood or wood-based materials.
Stand der Technik State of the art
Plattenförmige Werkstücke, wie beispielsweise Platten oder Paneele aus Holz oder Holzwerkstoffen, können mit einer Tintenstrahldruckeinrichtung bedruckt werden, um deren äußeres Erscheinungsbild individuell zu gestalten oder anzupassen . Plate-shaped workpieces, such as boards or panels made of wood or wood-based materials, can be printed with an inkjet printer in order to customize or customize their external appearance.
In diesem Zusammenhang ist das Dokument EP 1726 443 Al bekannt, in dem eine Vorrichtung zum Bemustern der Schmalseiten von plattenförmigen Werkstücken beschrieben wird. Die Vorrichtung umfasst eine stationäre Druckeinheit, die mindestens einen stationären Tintenstrahldruckkopf aufweist, der jeweils eine Mehrzahl von Düsenöffnungen zum Ausstößen von Tinte aufweist, eine Fördereinrichtung, mittels der die Werkstücke an der Druckeinheit entlang förderbar sind, eine stromaufwärts der Druckeinheit angeordnete Erfassungseinrichtung zum Erfassen der Abmessungen und/oder der Lage der zu bemusternden Schmalseite und/oder der Fördergeschwindigkeit der Werkstücke auf der Fördereinrichtung, eine Speichereinrichtung, in der Bilddaten für das auf die Schmalseite aufzubringende Muster gespeichert sind, und eine Steuereinrichtung, die mit den Druckköpfen, der Erfassungseinrichtung und der Speichereinrichtung kommuniziert und eingerichtet ist, die Druckköpfe in Abhängigkeit von den von der Erfassungseinrichtung erhaltenen Erfassungsdaten derart zu steuern, dass Tinte nur von Düsenöffnungen in einem Druckbereich ausgestoßen wird, dessen Höhe im Wesentlichen der Höhe der zu bemusternden Schmalseite entspricht . In this context, the document EP 1726 443 A1 is known, in which a device for patterning the narrow sides of plate-shaped workpieces is described. The device comprises a stationary printing unit, which has at least one stationary inkjet print head, each having a plurality of nozzle openings for ejecting ink, a conveyor device, by means of which the workpieces can be conveyed along the printing unit, a detection device arranged upstream of the printing unit for detecting the dimensions and/or the position of the narrow side to be patterned and/or the conveying speed of the workpieces on the conveying device, a memory device in which image data for the pattern to be applied to the narrow side is stored and a control device which communicates with the print heads, the detection device and the memory device and is set up to control the print heads in dependence on the detection data received from the detection device in such a way that ink is only ejected from nozzle openings in a print area whose height is in Essentially corresponds to the height of the narrow side to be sampled.
Darstellung der Erfindung Presentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung sowie ein Verfahren bereitzustellen, mit der beziehungsweise dem ein nochmals verbessertes Erscheinungsbild des Werkstücks hergestellt werden kann. The object of the invention is to provide a device and a method with which a further improved appearance of the workpiece can be produced.
Eine entsprechende Vorrichtung umfasst erfindungsgemäß die Merkmale gemäß Anspruch 1. Weitere bevorzugte Ausführungsformen sind in den abhängigen Ansprüchen aufgeführt . According to the invention, a corresponding device comprises the features according to claim 1. Further preferred embodiments are listed in the dependent claims.
Die Vorrichtung umfasst eine Beschichtungseinrichtung, die eingerichtet ist, ein insbesondere streifenförmiges Beschichtungsmaterial an einem Werkstück anzubringen. Ein solches Beschichtungsmaterial kann insbesondere zumindest abschnittsweise aus einem Kunststoffmaterial, aus Aluminium oder einem Furnier gebildet sein. Ferner umfasst die Vorrichtung eine Lack-Auftragseinrichtung, die eingerichtet ist, einen Lack am Beschichtungsmaterial anzubringen, und eine Strukturierungseinrichtung, die eingerichtet ist, einen Glanzwert und/oder haptische Eigenschaften der mit Lack versehenen Oberfläche einzustellen. The device comprises a coating device which is set up to apply a coating material, in particular a strip-shaped coating material, to a workpiece. Such a coating material can be formed, in particular at least in sections, from a plastic material, from aluminum or from a veneer. The device also includes a paint application device that is set up to apply paint to the coating material, and a structuring device that is set up to set a gloss value and/or haptic properties of the surface provided with paint.
Es hat sich gezeigt, dass mit der erfindungsgemäßen Vorrichtung eine qualitativ hochwertige und dabei kosteneffiziente Fertigung im industriellen Maßstab ermöglicht wird. Mit der Vorrichtung kann in einem Arbeitsgang ein Beschichtungsmaterial am Werkstück aufgebracht und eine Oberfläche zwischen Hochglanz und stumpfmatt eingestellt werden. Die Vorrichtung hat ferner den Vorteil, dass jedes Werkstück individuell gestaltet werden kann. Auch kann während des laufenden Betriebs ein Wechsel der optischen Gestaltung der Werkstücke erfolgen. It has been shown that the device according to the invention enables high-quality and at the same time cost-efficient production on an industrial scale. With the device in one A coating material can be applied to the workpiece in one operation and a surface can be adjusted between high gloss and dull matt. The device also has the advantage that each workpiece can be designed individually. The optical design of the workpieces can also be changed during ongoing operation.
Gemäß einer weiteren Ausführungsform ist es vorgesehen, dass die Vorrichtung ferner eine Druckeinrichtung zum Bedrucken einer Fläche des Beschichtungsmaterials aufweist. Es ist bevorzugt, dass die Druckeinrichtung zwischen der Beschichtungseinrichtung und der Lack-Auftragseinrichtung angeordnet ist. According to a further embodiment, it is provided that the device also has a printing device for printing on a surface of the coating material. It is preferred that the printing device is arranged between the coating device and the paint application device.
Dabei kann es vorgesehen sein, dass die Druckeinrichtung einen oder mehrere Druckköpfe umfasst, wobei ferner bevorzugt ist, dass der oder die Druckköpfe als Inkjet-Druckköpfe ausgebildet ist/sind. Damit wird eine präzise Bedruckung und damit auch eine individuelle Ausgestaltung gewährleistet. Sind mehrere Druckköpfe vorgesehen, kann ein mehrfarbiger Druck erfolgen. In this case, it can be provided that the printing device comprises one or more print heads, it also being preferred that the print head or print heads is/are designed as inkjet print heads. This ensures precise printing and thus also an individual design. If several print heads are provided, multicolored printing can take place.
Die Lack-Auftragseinrichtung kann eine Düse für einen Sprühauftrag, einen Inkjet-Druckkopf und/oder eine Walze umfassen. Die Düse und der Inkjet-Druckkopf haben dabei den Vorteil, dass diese berührungslos arbeiten. Ein Lackauftrag mit der Walze hingegen führt zu einem Kontakt von Walze und Werkstück, wobei der Lack dabei am Werkstück angepresst wird. The paint application device can include a nozzle for a spray application, an inkjet print head and/or a roller. The nozzle and the inkjet print head have the advantage that they work without contact. Applying paint with the roller, on the other hand, leads to contact between the roller and the workpiece, with the paint being pressed onto the workpiece.
Die Strukturierungseinrichtung kann eine Excimer-Leuchte, eine IR-Leuchte (Infrarot-Leuchte), eine Mikrowellenquelle und/oder eine LED-Quelle sein oder umfassen. The structuring device can be or comprise an excimer lamp, an IR lamp (infrared lamp), a microwave source and/or an LED source.
Durch die Einwirkung auf die Lackoberfläche wird eine Polymerisation des Lacks erreicht, sodass die Oberfläche gewissermaßen gefaltet wird. Durch diese Oberfläche wird eine diffuse Reflexion des Lichts bewirkt. Je nach Änderung der Oberfläche wird der Glanzwert, und gegebenenfalls die Haptik, eingestellt. Eine Excimer-Leuchte hat sich dabei beim Erstellen von tiefmatten Oberflächen mit gegebenenfalls haptischen Effekten bewährt. Ferner hat sich gezeigt, dass auch mittels einer Infrarot-Leuchte, einer Mikrowellenquelle und/oder einer LED-Quelle ein Glanzwert präzise eingestellt werden kann. The effect on the paint surface causes the paint to polymerize, so that the surface is folded to a certain extent. This surface causes a diffuse reflection of the light. Depending on the change in The gloss value and, if necessary, the haptics are adjusted on the surface. An excimer lamp has proven itself when creating deep matt surfaces with haptic effects if necessary. Furthermore, it has been shown that a gloss value can also be set precisely using an infrared lamp, a microwave source and/or an LED source.
Gemäß einer Ausführungsform ist es vorgesehen, dass die Vorrichtung eine Fördereinrichtung aufweist, die eingerichtet ist, das Werkstück in einer Durchlaufrichtung D zu bewegen. Mit einer sogenannten Durchlauf-Maschine kann ein relativ hoher Durchsatz erreicht werden. Dabei kann es ferner bevorzugt sein, dass die Fördereinrichtung einen Förderriemen, eine Förderkette oder ein Förderband umfasst. According to one embodiment, it is provided that the device has a conveying device that is set up to move the workpiece in a throughput direction D. A relatively high throughput can be achieved with a so-called continuous machine. It can also be preferred that the conveyor device comprises a conveyor belt, a conveyor chain or a conveyor belt.
Die Vorrichtung kann eine Bearbeitungseinheit umfassen, die zum spanenden Bearbeiten, insbesondere zum Formatieren der mit dem Beschichtungsmaterial zu versehenen Fläche des Werkstücks eingerichtet ist. Die Bearbeitungseinheit kann ein oder mehrere Bearbeitungsaggregate, insbesondere ein oder mehrere Fräsaggregate, umfassen, mit dem/denen eine spanende Bearbeitung vorgenommen werden kann. Beispielsweise kann mit einem Bearbeitungsaggregat der Bearbeitungseinheit eine plane Oberfläche hergestellt werden. Ferner kann die Bearbeitungseinheit ein Bearbeitungsaggregat umfassen, um einen Radius oder eine Fase am Werkstück, insbesondere an einer Schmalfläche des Werkstücks, vorzusehen. The device can include a processing unit that is set up for machining, in particular for formatting, the surface of the workpiece that is to be provided with the coating material. The processing unit can include one or more processing units, in particular one or more milling units, with which machining can be carried out. For example, a flat surface can be produced with a processing unit of the processing unit. Furthermore, the processing unit can include a processing unit in order to provide a radius or a chamfer on the workpiece, in particular on a narrow surface of the workpiece.
Gemäß einer weiteren Ausführungsform umfasst die Vorrichtung eine Nachbearbeitungseinrichtung, die ein Kappaggregat, eine Ziehlinge und/oder ein rotierendes Bearbeitungswerkzeug umfassendes Bearbeitungsaggregat aufweist. Das Kappaggregat und/oder die Ziehklinge sind vorgesehen, ein überstehendes Beschichtungsmaterial abzutrennen. Das Bearbeitungsaggregat kann als Formfräsaggregat ausgebildet sein, mit dem ein Formfräsen an einer hinteren oder vorderen Schmalfläche des Werkstücks durchgeführt werden kann. According to a further embodiment, the device comprises a post-processing device which has a processing unit comprising a trimming unit, a scraper and/or a rotating processing tool. The snipping unit and/or the scraper blade are intended to cut off a protruding coating material. The processing unit can be designed as a form milling unit with which a Form milling can be performed on a rear or front edge of the workpiece.
Ferner kann die Vorrichtung eine Reinigungseinrichtung aufweisen, die eingerichtet ist, das Beschichtungsmaterial insbesondere vor dem Bedrucken zu reinigen. Somit kann die Qualität der nachfolgenden Druck- oder Auftragsvorgänge verbessert werden. Insbesondere kann die Reinigungseinrichtung ein umlaufendes Tuch umfassen, das relativ zum am Werkstück aufgebrachten Beschichtungsmaterial bewegt wird und somit Bearbeitungsrückstände, Staub oder Ähnliches vom Beschichtungsmaterial entfernt. Furthermore, the device can have a cleaning device which is set up to clean the coating material in particular before printing. In this way, the quality of the subsequent printing or application processes can be improved. In particular, the cleaning device can include a circulating cloth that is moved relative to the coating material applied to the workpiece and thus removes processing residues, dust or the like from the coating material.
Gemäß einer weiteren Ausführungsform umfasst die Vorrichtung eine Plasmabehandlungseinrichtung, die eingerichtet ist, ein Plasma zu erzeugen, um dieses mittels Druckluft an das Beschichtungsmaterial zu blasen. Damit wird die Oberfläche für eine weitere Verarbeitung vorbereitet. Nachfolgend kann mit einer Haftvermittler-Auftragseinrichtung ein Haftvermittler (Primer) am Beschichtungsmaterial aufgebracht werden. Durch die mit der Plasmabehandlungseinrichtung vorbereitete Fläche kann der Haftvermittler besonders gut an der Fläche anhaften. According to a further embodiment, the device comprises a plasma treatment device which is set up to generate a plasma in order to blow it onto the coating material using compressed air. This prepares the surface for further processing. An adhesion promoter (primer) can then be applied to the coating material using an adhesion promoter application device. Due to the surface prepared with the plasma treatment device, the adhesion promoter can adhere particularly well to the surface.
Ferner betrifft die Erfindung ein Verfahren zum Vergüten eines, insbesondere plattenförmigen, Werkstücks. Das Verfahren umfasst die Schritte: Aufbringen eines, insbesondere streifenförmigen, Beschichtungsmaterials an einem Werkstück, Aufträgen eines Lacks am Beschichtungsmaterial, und Strukturieren der Oberfläche des Lacks zum Einstellen eines Glanzwerts und/oder einer haptischen Eigenschaft. Es ist bevorzugt, dass die zuvor beschriebene Vorrichtung im Rahmen des Verfahrens zum Einsatz kommt. Furthermore, the invention relates to a method for tempering a workpiece, in particular a plate-shaped workpiece. The method comprises the steps: applying a coating material, in particular strip-shaped, to a workpiece, applying a paint to the coating material, and structuring the surface of the paint to set a gloss value and/or a haptic property. It is preferred that the device described above is used as part of the method.
Das Beschichtungsmaterial ist insbesondere zumindest abschnittsweise aus einem Kunststoffmaterial, aus Aluminium oder einem Furnier gebildet, sodass das Verfahren im Bereich der Möbelfertigung zum Einsatz kommen kann. The coating material is in particular made of a plastic material, aluminum, at least in sections or a veneer, so that the process can be used in furniture production.
Ferner kann das Verfahren den Schritt des Bedruckens einer Fläche des Beschichtungsmaterials umfassen. Somit kann das äußere Erscheinungsbild individuell gestaltet werden. Das Bedrucken der Fläche des Beschichtungsmaterials erfolgt insbesondere vor dem Schritt des Auftragens des Lacks am Beschichtungsmaterial . The method may further include the step of printing on a surface of the coating material. Thus, the external appearance can be designed individually. The surface of the coating material is printed in particular before the step of applying the lacquer to the coating material.
In einer weiteren Ausführungsform ist es vorgesehen, dass der Auftrag des Lacks mittels einer Düse für einen Sprühauftrag, einem Inkjet-Druckkopf und/oder einer Walze erfolgt. In a further embodiment it is provided that the paint is applied by means of a nozzle for a spray application, an inkjet print head and/or a roller.
Ferner kann es vorgesehen sein, dass das Strukturieren mittels einer Excimer-Leuchte, einer IR-Leuchte, einer Mikrowellenquelle und/oder einer LED-Quelle erfolgt. Furthermore, it can be provided that the structuring takes place by means of an excimer lamp, an IR lamp, a microwave source and/or an LED source.
Es ist bevorzugt, dass vor dem Aufbringen des Beschichtungsmaterials die zu beschichtende Fläche des Werkstücks spanend bearbeitet wird. Beispielsweise kann eine plane Oberfläche hergestellt werden. Ferner kann ein Radius oder eine Fase am Werkstück, insbesondere an einer Schmalfläche des Werkstücks, vorgesehen werden. It is preferred that before the coating material is applied, the surface of the workpiece to be coated is machined. For example, a flat surface can be produced. Furthermore, a radius or a chamfer can be provided on the workpiece, in particular on a narrow surface of the workpiece.
Als einen weiteren Schritt kann das Verfahren ein Nachbearbeiten des Beschichtungsmaterials umfassen, insbesondere ein Kappen, Abziehen und/oder Formatbearbeiten des am Werkstück angebrachten Beschichtungsmaterials. Somit kann eine Fertigung in einem Arbeitsgang, insbesondere in einem Durchlauf, erfolgen. As a further step, the method can include post-processing of the coating material, in particular cutting, stripping and/or formatting of the coating material applied to the workpiece. Manufacturing can thus take place in one operation, in particular in one run.
Es ist bevorzugt, dass die Schritte zum Vergüten des Werkstücks in einem Durchlauf erfolgen. Somit kann in einem Arbeitsgang ein Beschichtungsmaterial am Werkstück aufgebracht und eine Oberfläche zwischen Hochglanz und stumpfmatt eingestellt werden. Dies eröffnet individuelle Gestaltungsmöglichkeiten . It is preferred that the steps for tempering the workpiece take place in one pass. Thus, a coating material can be applied to the workpiece in one operation and a surface between high gloss and be set to dull matt. This opens up individual design options.
Kurze Beschreibung der Zeichnung Brief description of the drawing
Weitere Merkmale und Vorteile ergeben sich unter Bezugnahme auf die beiliegende Zeichnung. Further features and advantages can be found by referring to the attached drawing.
Fig. 1 zeigt eine schematische Ansicht einer Vorrichtung zum Bedrucken von Werkstücken gemäß einer Ausführungsform der Erfindung. 1 shows a schematic view of a device for printing workpieces according to an embodiment of the invention.
Beschreibung der Ausführungsform Description of the embodiment
Fig. 1 zeigt eine schematische Seitenansicht einer Ausführungsform einer erfindungsgemäßen Vorrichtung 1, die zum Bedrucken einer Schmalseite eines plattenförmigen Werkstücks eingesetzt wird. Ein solches Werkstück kann zumindest teilweise aus Holz- oder Holzwerkstoffen gefertigt sein. Beispielsweise handelt es sich um eine Platte oder ein Paneel für ein Möbelstück, ein Fußboden- oder Deckenpaneel, eine Küchenarbeitsplatte oder Ähnliches. 1 shows a schematic side view of an embodiment of a device 1 according to the invention, which is used for printing on a narrow side of a panel-shaped workpiece. Such a workpiece can be made at least partially from wood or wood-based materials. For example, it is a board or a panel for a piece of furniture, a floor or ceiling panel, a kitchen worktop or the like.
Zum Bewegen der durch die Vorrichtung 1 zu behandelnden Werkstücke weist die Vorrichtung 1 eine Fördereinrichtung auf, mit der Werkstücke in einer Durchlaufrichtung D durch die Vorrichtung 1 bewegt werden können. Die Fördereinrichtung ist beispielsweise als Förderriemen, Förderkette oder Förderband ausgebildet. Ferner kann die Vorrichtung 1 mit einem sogenannten Oberdruck ausgestattet sein, mit dem die in Durchlaufrichtung D bewegten Werkstücke gegen die Fördereinrichtung gedrückt werden. In order to move the workpieces to be treated by the device 1, the device 1 has a conveyor device with which the workpieces can be moved in a direction D through the device 1. The conveyor device is designed, for example, as a conveyor belt, conveyor chain or conveyor belt. Furthermore, the device 1 can be equipped with a so-called upper pressure, with which the workpieces moved in the direction D are pressed against the conveying device.
Die Vorrichtung 1 umfasst einen Einlaufbereich 10, in dem ein Werkstück in die Vorrichtung 1 eingelegt werden kann. Auch ist es möglich, Werkstücke mittels einer (nicht dargestellten) Zufuhreinrichtung dem Einlaufbereich 10 zuzuführen. The device 1 comprises an entry area 10 in which a workpiece can be inserted into the device 1 . It is also possible to place workpieces using a (not illustrated) feed device to the inlet area 10 to supply.
Benachbart zum Einlaufbereich 10 befindet sich eine Bearbeitungseinheit 20, die zum spanenden Bearbeiten, insbesondere zum Formatieren einer Schmalfläche eines in Durchlaufrichtung D bewegten Werkstücks eingerichtet ist. Die Bearbeitungseinheit 20 umfasst ein oder mehrere Bearbeitungsaggregate, mit dem bzw. mit denen eine spanende Bearbeitung vorgenommen werden kann. Beispielsweise kann mit einem Bearbeitungsaggregat der Bearbeitungseinheit 20 eine plane Oberfläche hergestellt werden. Ferner kann die Bearbeitungseinheit 20 ein Bearbeitungsaggregat umfassen, um einen Radius oder eine Fase an einer Schmalfläche des Werkstücks vorzusehen. Adjacent to the entry area 10 there is a processing unit 20 which is set up for machining, in particular for formatting a narrow surface of a workpiece moved in the throughput direction D. The processing unit 20 includes one or more processing units with which or with which a machining can be carried out. For example, a flat surface can be produced with a processing unit of the processing unit 20 . Furthermore, the processing unit 20 can comprise a processing unit in order to provide a radius or a chamfer on a narrow surface of the workpiece.
In Durchlaufrichtung D nachranging zur Bearbeitungseinheit 20 umfasst die Vorrichtung 1 eine Beschichtungseinrichtung 30, die eingerichtet ist, ein streifenförmiges Beschichtungsmaterial an der mittels der Bearbeitungseinheit 20 bearbeiteten Schmalfläche des plattenförmigen Werkstücks anzubringen. Ein solches Beschichtungsmaterial umfasst entweder eine vorbeschichtete Haftschicht oder einen aktivierbaren Abschnitt, oder das Beschichtungsmaterial und/oder die Schmalfläche des Werkstücks wird/werden mit einem Haftmittel versehen. Die Beschichtungsrichtung 30 ist eingerichtet, das Beschichtungsmaterial an die Schmalseite des Werkstücks anzupressen. Downstream from the processing unit 20 in the throughput direction D, the device 1 comprises a coating device 30 which is set up to apply a strip-shaped coating material to the narrow surface of the plate-shaped workpiece processed by the processing unit 20 . Such a coating material comprises either a pre-coated adhesive layer or an activatable portion, or the coating material and/or the edge of the workpiece is/are provided with an adhesive. The coating device 30 is set up to press the coating material onto the narrow side of the workpiece.
Nachrangig zur Beschichtungseinrichtung 30 ist eine Nachbearbeitungseinrichtung 40 vorgesehen, mit der ein überstehender Abschnitt des Beschichtungsmaterials entfernt und/oder ein Abschluss des Beschichtungsmaterials mit den Werkstückdimensionen gewährleistet werden kann. Die Nachbearbeitungseinrichtung 40 kann ein Kappaggregat und/oder eine Ziehklinge umfassen, das/die eingerichtet ist/sind, ein überstehendes Beschichtungsmaterial abzutrennen. Alternativ oder zusätzlich umfasst die Nachbearbeitungseinrichtung 40 ein Formfräsaggregat, mit dem ein Formfräsen an einer hinteren oder vorderen Schmalfläche des Werkstücks durchgeführt werden kann. Subordinate to the coating device 30 is a post-processing device 40, with which a protruding section of the coating material can be removed and/or a termination of the coating material with the workpiece dimensions can be ensured. The post-processing device 40 can include a snipping unit and/or a scraper, which is/are set up to cut off a protruding coating material. Alternatively or the post-processing device 40 additionally includes a form milling unit with which form milling can be carried out on a rear or front narrow surface of the workpiece.
Die Vorrichtung 1 umfasst ferner eine Reinigungseinrichtung 50, um das Werkstück, insbesondere die beschichtete Schmalfläche des Werkstücks, vor der weiteren Verarbeitung zu reinigen. Insbesondere kann die Reinigungseinrichtung 50 ein umlaufendes Tuch umfassen, das relativ zum an der Schmalseite des Werkstücks aufgebrachten Beschichtungsmaterials bewegt wird und somit Bearbeitungsrückstände, Staub oder Ähnliches vom Beschichtungsmaterial entfernt. The device 1 also includes a cleaning device 50 in order to clean the workpiece, in particular the coated narrow surface of the workpiece, before further processing. In particular, the cleaning device 50 can include a circulating cloth that is moved relative to the coating material applied to the narrow side of the workpiece and thus removes processing residues, dust or the like from the coating material.
Ferner weist die Vorrichtung 1 eine Plasmabehandlungseinrichtung 60 auf, die eingerichtet ist, von einer Hochspannungsentladung räumlich getrennt ein Plasma zu erzeugen, um dieses mittels Druckluft an das Beschichtungsmaterial am Werkstück zu blasen. Dabei wird die Oberfläche geringfügig erwärmt. Furthermore, the device 1 has a plasma treatment device 60, which is set up to generate a plasma, spatially separated from a high-voltage discharge, in order to blow it onto the coating material on the workpiece by means of compressed air. The surface is slightly heated.
In Durchlaufrichtung D nachrangig zur Plasmabehandlungseinrichtung 60 wird eine Haftvermittler- Auftragseinrichtung 70 vorgesehen, mit der ein Haftvermittler (Primer) am Beschichtungsmaterial aufgebracht wird. Mit der Haftvermittler-Auftragseinrichtung 70 wird die Oberfläche des am Werkstück vorgesehenen Beschichtungsmaterials für ein nachfolgendes Bedrucken vorbereitet, sodass die Oberfläche verbesserte Benetzungs- und Hafteigenschaften aufweist. An adhesion promoter application device 70 with which an adhesion promoter (primer) is applied to the coating material is provided downstream of the plasma treatment device 60 in the throughput direction D. With the adhesion promoter application device 70, the surface of the coating material provided on the workpiece is prepared for subsequent printing, so that the surface has improved wetting and adhesion properties.
Benachbart zur Haftvermittler-Auftragseinrichtung 70 ist eine Tintenstrahl-Druckeinrichtung 80 vorgesehen, die einen oder mehrere Druckköpfe umfasst. Die Druckköpfe sind als Inkjet- Druckköpfe ausgebildet und können ein Druckmaterial (Tinte) an der zu bedruckenden Oberfläche aufbringen. Der Inkjet- Druckkopf der Tintenstrahl-Druckeinrichtung 80 kann eine mehrfarbige Bedruckung vornehmen und hierzu als Farben Schwarz, Magenta, Gelb und Cyan ausgeben. Diese Farben werden entsprechend miteinander kombiniert, um durch deren Kombination ein mehrfarbiges Muster aufzubringen. Adjacent to the adhesion promoter application device 70 there is an ink jet printing device 80 which comprises one or more print heads. The print heads are designed as inkjet print heads and can apply a printing material (ink) to the surface to be printed. The inkjet print head of the inkjet printing device 80 can carry out multicolored printing and for this purpose as colors Output black, magenta, yellow and cyan. These colors are appropriately combined with each other to apply a multicolored pattern by combining them.
In Durchlaufrichtung D nach der Tintenstrahl-Druckeinrichtung 80 ist eine Lack-Auftragseinrichtung 90 vorgesehen, die einen Lack an der bedruckten Fläche des Werkstücks aufbringen kann. Die Lack-Auftragseinrichtung 90 kann eine Düse für einen Sprühauftrag, einen Inkjet-Druckkopf, oder eine Walze umfassen. A lacquer application device 90 is provided downstream of the inkjet printing device 80 in the throughput direction D, which lacquer application device can apply lacquer to the printed surface of the workpiece. The paint application device 90 can include a nozzle for a spray application, an inkjet print head, or a roller.
Benachbart zur Lack-Auftragseinrichtung 90 ist eine Strukturierungseinrichtung 100 vorgesehen, die eine Excimer- Leuchte umfasst. Mit der Strukturierungseinrichtung 100 kann eine gezielte Strukturierung des noch nicht oder nicht vollständig ausgehärteten Lacks erfolgen, sodass ein bestimmter Glanzwert und/oder haptische Eigenschaften der Oberfläche eingestellt werden kann/können. Der Glanzwert kann als Reflektometerwert nach ISO 2813 gemessen werden. Ferner wird durch den Einsatz der Strukturierungseinrichtung 100 eine bestimmte Haptik erzeugt und der Lack weiter ausgehärtet. A structuring device 100 comprising an excimer lamp is provided adjacent to the paint application device 90 . The structuring device 100 can be used for targeted structuring of the paint that has not yet cured or has not fully cured, so that a specific gloss value and/or haptic properties of the surface can be adjusted. The gloss value can be measured as a reflectometer value according to ISO 2813. Furthermore, the use of the structuring device 100 creates a certain haptic and the paint is further cured.
In Durchlaufrichtung D nachrangig ist ferner eine Inspektionseinrichtung 110 vorgesehen, die eine Kamera umfasst, um die mit den zuvor genannten Einrichtungen vergütete Oberfläche des Werkstücks, insbesondere die bedruckte und mit der Strukturierungseinrichtung 100 vergütete Oberfläche des Beschichtungsmaterials am Werkstück zu inspizieren und eine Beurteilung der Oberflächenqualität vorzunehmen. An inspection device 110, which includes a camera, is also provided downstream in throughput direction D, in order to inspect the surface of the workpiece that has been coated with the aforementioned devices, in particular the printed surface of the coating material on the workpiece that has been coated with structuring device 100, and to assess the surface quality .
Die Vorrichtung 1 hat den Vorteil, dass die genannten Einrichtungen 20-100 in einer Vorrichtung vorgesehen sind, sodass das Werkstück ohne weitere Neuausrichtung und insbesondere in einer Aufspannung eine Vielzahl von Bearbeitungsschritten durchlaufen kann. Dies erhöht die Reproduzierbarkeit und die Qualität des äußeren Erscheinungsbildes des Werkstücks, da die jeweiligen Bearbeitungsschritte präzise aufeinander abgestimmt werden können. The device 1 has the advantage that the devices 20-100 mentioned are provided in one device, so that the workpiece can go through a large number of processing steps without further realignment and in particular in one setting. This increases the Reproducibility and the quality of the external appearance of the workpiece, since the respective processing steps can be precisely coordinated.

Claims

ANSPRÜCHE EXPECTATIONS
1. Vorrichtung (1) zum Vergüten eines, insbesondere plattenförmigen, Werkstücks, umfassend: eine Beschichtungseinrichtung (30), die eingerichtet ist, ein, insbesondere streifenförmiges, Beschichtungsmaterial an einem Werkstück anzubringen, eine Lack-Auftragseinrichtung (90), die eingerichtet ist, einen Lack am Beschichtungsmaterial anzubringen, und eine Strukturierungseinrichtung (100), die eingerichtet ist, einen Glanzwert und/oder eine haptische Eigenschaft der mit Lack versehenen Oberfläche einzustellen. 1. Device (1) for tempering a workpiece, in particular a plate-shaped one, comprising: a coating device (30) which is set up to apply a coating material, in particular a strip-shaped one, to a workpiece, a paint application device (90) which is set up applying a paint to the coating material, and a structuring device (100) which is set up to set a gloss value and/or a haptic property of the surface provided with the paint.
2. Vorrichtung (1) gemäß Anspruch 1, ferner umfassend eine Druckeinrichtung (80) zum Bedrucken einer Fläche des Beschichtungsmaterials, wobei bevorzugt ist, dass die Druckeinrichtung (80) einen oder mehrere Druckköpfe umfasst, wobei ferner bevorzugt ist, dass der oder die Druckköpfe als Inkjet-Druckköpfe ausgebildet ist/sind. 2. Device (1) according to claim 1, further comprising a printing device (80) for printing a surface of the coating material, it being preferred that the printing device (80) comprises one or more print heads, it being further preferred that the or the print heads is designed as an inkjet print head / are.
3. Vorrichtung (1) gemäß einem der vorangegangenen Ansprüche, wobei die Lack-Auftragseinrichtung (90) eine Düse für einen Sprühauftrag, einen Inkjet-Druckkopf, und/oder eine Walze umfasst. 3. Device (1) according to one of the preceding claims, wherein the paint application device (90) comprises a nozzle for a spray application, an inkjet print head, and/or a roller.
4. Vorrichtung (1) gemäß einem der vorangegangenen4. Device (1) according to one of the preceding
Ansprüche, wobei die Strukturierungseinrichtung (100) eine Excimer-Leuchte, eine IR-Leuchte, eineClaims, wherein the structuring device (100) is an excimer lamp, an IR lamp, a
Mikrowellenquelle und/oder eine LED-Quelle umfasst. 5. Vorrichtung (1) gemäß einem der vorangegangenenIncludes microwave source and / or an LED source. 5. Device (1) according to one of the preceding
Ansprüche, ferner umfassend eine Fördereinrichtung, die eingerichtet ist, das Werkstück in einerClaims, further comprising a conveyor, which is set up, the workpiece in a
Durchlaufrichtung (D) zu bewegen, wobei bevorzugt ist, dass die Fördereinrichtung einen Förderriemen, eine Förderkette oder ein Förderband umfasst. To move direction of passage (D), it being preferred that the conveyor comprises a conveyor belt, a conveyor chain or a conveyor belt.
6. Vorrichtung (1) gemäß einem der vorangegangenen6. Device (1) according to one of the preceding
Ansprüche, ferner umfassend eine BearbeitungseinheitClaims, further comprising a processing unit
(20), die zum spanenden Bearbeiten, insbesondere zum Formatieren der mit dem Beschichtungsmaterial zu versehenden Fläche des Werkstücks eingerichtet ist. (20), which is set up for machining, in particular for formatting the surface of the workpiece to be provided with the coating material.
7. Vorrichtung (1) gemäß einem der vorangegangenen7. Device (1) according to one of the preceding
Ansprüche, ferner umfassend eineClaims, further comprising a
Nachbearbeitungseinrichtung (40), die ein Kappaggregat, eine Ziehlinge und/oder ein rotierendesPost-processing device (40), a snipping unit, a drawing and / or a rotating
Bearbeitungswerkzeug umfassendes Bearbeitungsaggregat aufweist. Has processing tool comprehensive processing unit.
8. Vorrichtung (1) gemäß einem der vorangegangenen8. Device (1) according to one of the preceding
Ansprüche, ferner umfassend eine ReinigungseinrichtungClaims, further comprising a cleaning device
(50), die eingerichtet ist, das am Werkstück angebrachte Beschichtungsmaterial zu reinigen. (50) arranged to clean the coating material applied to the workpiece.
9. Vorrichtung (1) gemäß einem der vorangegangenen9. Device (1) according to one of the preceding
Ansprüche, ferner umfassend eineClaims, further comprising a
Plasmabehandlungseinrichtung (60), die eingerichtet ist, ein Plasma zu erzeugen, um dieses mittels Druckluft an das am Werkstück angebrachte Beschichtungsmaterial zu blasen. Plasma treatment device (60) which is set up to generate a plasma in order to blow it by means of compressed air onto the coating material applied to the workpiece.
10. Verfahren zum Vergüten eines, insbesondere plattenförmigen, Werkstücks, umfassend die Schritte: 10. A method for tempering a workpiece, in particular a plate-shaped workpiece, comprising the steps:
Aufbringen eines, insbesondere streifenförmiges, Beschichtungsmaterials an einem Werkstück, Aufträgen eines Lacks am Beschichtungsmaterial, und Application of a coating material, in particular strip-shaped, to a workpiece, applying a varnish to the coating material, and
Strukturieren der Oberfläche des Lacks zum Einstellen eines Glanzwerts und/oder einer haptischen Eigenschaft. Structuring of the surface of the paint to set a gloss value and/or a haptic property.
11. Verfahren gemäß Anspruch 10, ferner umfassend den Schritt des Bedruckens einer Fläche des Beschichtungsmaterials. 11. The method of claim 10, further comprising the step of printing on a surface of the coating material.
12. Verfahren gemäß Anspruch 10 oder 11, wobei der Auftrag des Lacks mittels einer Düse für einen Sprühauftrag, einem Inkjet-Druckkopf und/oder einer Walze erfolgt. 12. The method according to claim 10 or 11, wherein the coating is applied by means of a nozzle for a spray application, an inkjet print head and/or a roller.
13. Verfahren gemäß einem der Ansprüche 10-12, wobei das13. The method according to any one of claims 10-12, wherein the
Strukturieren mittels einer Excimer-Leuchte, einer IR- Leuchte, einer Mikrowellenquelle und/oder einer LED- Quelle erfolgt. Structuring takes place by means of an excimer lamp, an IR lamp, a microwave source and/or an LED source.
14. Verfahren gemäß einem der Ansprüche 10-13, wobei vor dem Aufbringen des Beschichtungsmaterials die zu beschichtende Fläche des Werkstücks spanend bearbeitet wird. 14. The method according to any one of claims 10-13, wherein prior to the application of the coating material, the surface of the workpiece to be coated is machined.
15. Verfahren gemäß einem der Ansprüche 10-14, wobei die15. The method according to any one of claims 10-14, wherein the
Schritte zum Vergüten des Werkstücks in einem Durchlauf erfolgen. Steps for tempering the workpiece are done in one pass.
EP22707738.5A 2021-02-25 2022-02-24 Machine and method for treating a workpiece Pending EP4297977A1 (en)

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DE102021104499.5A DE102021104499A1 (en) 2021-02-25 2021-02-25 Device and method for tempering a workpiece
PCT/EP2022/054666 WO2022180168A1 (en) 2021-02-25 2022-02-24 Machine and method for treating a workpiece

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EP (1) EP4297977A1 (en)
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DE102022112010A1 (en) * 2022-05-13 2023-11-16 REHAU Industries SE & Co. KG Method for producing a profile body
WO2024127294A1 (en) * 2022-12-16 2024-06-20 Unilin, Bv Method for manufacturing panels; and panels obtained by this method
DE102023111052A1 (en) 2023-04-28 2024-10-31 Homag Gmbh Device for cleaning a coating material, system for refining a coating material and method for cleaning a coating material

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DE202004000662U1 (en) 2004-01-17 2004-04-08 Homag Holzbearbeitungssysteme Ag Machine for printing the narrow sides of plate-shaped workpieces
PL1726443T3 (en) 2005-04-28 2007-10-31 Homag Holzbearbeitungssysteme Ag Method and apparatus for marking the sides of a plane workpiece
EP1839883B1 (en) * 2006-03-08 2016-08-24 Homag Holzbearbeitungssysteme AG Method and device for printing on plate-like objects
EP1935657B1 (en) * 2006-12-20 2013-02-13 Homag Holzbearbeitungssysteme AG Method and device for coating workpieces
EP2911882B1 (en) * 2012-10-29 2017-10-11 Hewlett-Packard Development Company, L.P. Post-treatment solution for digital inkjet printing
DE102015206010A1 (en) 2015-04-02 2016-10-06 Homag Holzbearbeitungssysteme Gmbh Coating device and method
DE102015219108A1 (en) * 2015-10-02 2017-04-06 Homag Gmbh Method and device for narrow-surface coating
WO2018197531A1 (en) * 2017-04-28 2018-11-01 Schmid Rhyner Ag Device and method for producing a textured coating
DE102019103267A1 (en) 2019-02-11 2020-08-13 Homag Gmbh Method and device for coating a narrow side of a plate-shaped workpiece

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WO2022180168A1 (en) 2022-09-01

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