WO2024008571A1 - Procédé pour revêtir des surfaces étroites d'une pièce et pièce - Google Patents

Procédé pour revêtir des surfaces étroites d'une pièce et pièce Download PDF

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Publication number
WO2024008571A1
WO2024008571A1 PCT/EP2023/067964 EP2023067964W WO2024008571A1 WO 2024008571 A1 WO2024008571 A1 WO 2024008571A1 EP 2023067964 W EP2023067964 W EP 2023067964W WO 2024008571 A1 WO2024008571 A1 WO 2024008571A1
Authority
WO
WIPO (PCT)
Prior art keywords
narrow
coating material
narrow surface
surface coating
layer
Prior art date
Application number
PCT/EP2023/067964
Other languages
German (de)
English (en)
Inventor
Felix Schatz
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 WO2024008571A1 publication Critical patent/WO2024008571A1/fr

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Classifications

    • 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

Definitions

  • the invention relates to a method for coating narrow surfaces of a workpiece and a workpiece.
  • Workpieces made of wood, wood-based materials, plastic or the like are often used to produce furniture parts or other components.
  • Such workpieces can be, for example, chipboard or fiberboard, the wide and/or narrow surfaces of which are usually provided with a coating material for optical and functional reasons.
  • the curve radius of transition areas between two adjacent narrow surfaces limits the material thickness of the coating material. This means that increasing material thickness results in decreasing flexibility
  • Coating material so that a reduced material thickness of the coating material must be provided for coating narrow curve radii. However, this can lead to a reduction in the resistance of the coating.
  • the invention is based on the object of proposing a method through which a robust and visually appealing coating of narrow surfaces of a workpiece is possible.
  • a method is defined in claim 1.
  • a workpiece is defined in claim 10. Subclaims refer to specific embodiments.
  • the object is achieved by a method for coating narrow surfaces of a particularly plate-shaped workpiece, which is preferably at least partially made of wood, wood materials, plastic or the like, in which at least one narrow surface of the workpiece and / or at least one Transition area between adjacent narrow surfaces is coated in layers with a first layer and at least one further layer of a narrow surface coating material, the layers of the narrow surface coating material being joined together by means of an energetically activatable functional layer.
  • At least one narrow surface and/or at least one transition region between adjacent narrow surfaces of the workpiece can be provided with a multi-layer coating of a narrow surface coating material that is resistant and visually appealing.
  • the at least one narrow surface and/or the at least one transition region between adjacent narrow surfaces can be coated with any number of layers of the narrow surface coating material, for example two, three, four or more layers.
  • the multiple layers can each be formed by the same narrow surface coating material or by different narrow surface coating materials, for example narrow surface coating materials that have different colors.
  • the functional layer is an energetically activatable adhesive layer, the adhesive effect of which is formed by energetic activation using an activation device, for example a laser device, a hot air device, an infrared device or the like.
  • an activation device for example a laser device, a hot air device, an infrared device or the like.
  • Such a functional layer enables the individual layers of the narrow surface coating material to be joined together seamlessly, in particular through appropriately coordinated coloring. This allows a seamless overall impression of the narrow surface coating to be achieved.
  • the functional layer is preferably at least partially made of polypropylene (PP).
  • the functional layer can either be provided before the coating process on one of the surfaces of the coating material to be joined together or can be applied as a process step of the coating process to one of the surfaces of the coating material to be joined together.
  • the method can provide that the narrow surface coating material is at least partially made of a plastic material, preferably polypropylene (PP) or acrylonitrile-butadiene-styrene (ABS).
  • a plastic material preferably polypropylene (PP) or acrylonitrile-butadiene-styrene (ABS).
  • the narrow surface coating material is at least partially formed from a plastic material
  • a resistant narrow surface coating is formed, which can be colored as desired and can be easily reworked by subsequent processing.
  • the narrow surface coating material is made of polypropylene (PP) or acrylonitrile butadiene styrene (ABS), a high adhesive effect can be achieved in conjunction with the energetically activated functional layer.
  • PP polypropylene
  • ABS acrylonitrile butadiene styrene
  • a further preferred embodiment of the method can provide that a transition region between adjacent narrow surfaces is coated with the first layer and the at least one further layer of the narrow surface coating material, which at least in sections has a curve radius of 30 mm or less, preferably 20 mm or less, in particular preferably 10 mm or less.
  • each individual layer can have greater flexibility. In this way, even narrow curve radii can be coated with the coating material and, due to the multi-layer structure of the coating, any desired coating thickness can be formed.
  • At least one of the surfaces of the narrow surface coating material to be joined can be manipulated at least in areas before joining.
  • the at least one of the surfaces of the narrow surface coating material to be joined together can preferably be manipulated at least partially by a processing tool.
  • Manipulating the surface means in particular editing the surface, through which a surface quality is influenced in such a way that a higher adhesive effect can be formed by the functional layer.
  • Manipulation can, for example, increase the roughness of the surface. an adhesive surface can be increased.
  • a surface of the narrow surface coating material is manipulated at least in areas, which is subsequently joined to a further layer of the narrow surface coating material.
  • One embodiment of the method can provide that the at least one of the surfaces of the narrow surface coating material to be joined is provided with a profiling at least in some areas.
  • the at least regional profiling is provided on the surface of the narrow surface coating material, which is opposite the surface with the functional layer.
  • the surface of the narrow surface coating material facing away from the workpiece is provided with the profiling at least in some areas.
  • the at least one of the surfaces of the narrow surface coating material to be joined together is provided with a longitudinal profile at least in some areas in a longitudinal direction.
  • the at least one surface can be provided with a profiling that runs transversely to the longitudinal direction, an oblique profiling, or combinations thereof.
  • the profiling is preferably formed by a processing tool, for example by a profiling tool, a milling tool, a cutting tool or the like.
  • a processing tool for example by a profiling tool, a milling tool, a cutting tool or the like.
  • the narrow surface coating material has a material thickness of 2 mm or less, 1.5 mm or less or 1.0 mm or less and by assembling the narrow surface coating material in layers, a total layer thickness of 2 mm or more, preferably 3.5 mm or more.
  • narrow surface coating material can be provided, through which narrow curve radii of the transition region, for example of 30 mm or less, preferably 20 mm or less, particularly preferably 10 mm or less, can be coated.
  • the narrow surface coating material can have two, three or more layers, so that, for example, with a material thickness of the narrow surface coating material of 2 mm, depending on the number of layers, a total thickness of the coating of approximately 4 mm, 6 mm or correspondingly larger is formed .
  • a total thickness of the coating of approximately 3 mm, 4.5 mm or correspondingly larger can be formed.
  • the method can be used to contour the first and at least one further layer of the narrow surface coating material together after the layer-by-layer coating of the at least one narrow surface and/or the at least one transition region.
  • the joint contouring is provided in particular along the longitudinal extent of the narrow surface coating material. This allows a flush and, for example, rounded transition to be formed from the narrow surface coating to the wide surfaces of the workpiece.
  • the contouring of the narrow surface coating material can be done, for example, by a clamping processing tool and/or by a cutting tool.
  • the layers are at least partially processed by the processing tool in a common processing process, preferably provided with a profile.
  • the first and at least one further layer of the narrow surface coating material can be contoured in a longitudinal direction with a radius profile, a barrel profile, a roof profile, a half-rod profile or the like.
  • the narrow surface coating can be designed with any profile, so that a flexible adaptation of the narrow surface coating to the requirements of later use and/or to the wishes of a customer can be made possible.
  • a workpiece in particular a plate-shaped workpiece, which is preferably at least partially made of wood, wood materials, plastic or the like, in which wide surfaces and / or narrow surfaces of the workpiece are at least partially coated with a coating material , wherein at least one narrow surface and / or at least one transition area between adjacent narrow surfaces according to is coated using the method according to one of the previously described embodiments.
  • the at least one narrow surface and/or the at least one transition region between adjacent narrow surfaces can be provided with a multi-layer coating of a narrow surface coating material.
  • a coating can have any number of layers of the narrow surface coating material, for example two, three, four or more layers.
  • the use of the energetically activatable functional layer to join the individual layers together enables a seamless design of the coating on the at least one narrow surface and/or the at least one transition region, which is resistant and visually appealing.
  • Fig. 1 a schematic perspective sectional view of a workpiece that is coated according to an embodiment of a method according to the disclosure
  • Fig. 2 a schematic perspective sectional view of the workpiece in an intermediate step of the coating process
  • Fig. 3 shows a schematic view from above of the workpiece in the intermediate step of the coating process according to FIG. 2 ;
  • Fig. 4 is a schematic sectional view of one
  • Fig. 1 shows a schematic perspective sectional view of a workpiece 10 which is coated according to an embodiment of a method according to the disclosure.
  • the workpiece 10 is in particular a workpiece that is at least partially made of wood, wood materials, plastic or the like.
  • the workpiece 10 is preferably a plate-shaped workpiece, for example a solid wood panel, chipboard, fiberboard, lightweight board, sandwich panel or the like.
  • a workpiece 11 can be intended, for example, for furniture or component production.
  • the present invention is not limited to such workpieces 10 and materials.
  • the plate-shaped workpiece 10 has wide surfaces 11 and narrow surfaces 12.
  • the wide surfaces 11 are preferably provided with a coating material.
  • the narrow surfaces 12 of the workpiece 10 are coated with several layers of a narrow surface coating material 13 according to the method according to the disclosure.
  • a narrow surface coating material 13 is also referred to as edge material or edge band.
  • the narrow surface coating material 13 is in particular at least partially formed from a plastic material.
  • the plastic material is particularly preferably polypropylene (PP) or acrylonitrile-butadiene-styrene (ABS).
  • the coating process can be carried out using a coating device (not shown) for coating the narrow surfaces 12 of the workpiece 10.
  • the coating device can have a pressure device through which the narrow surface coating material 13 is pressed onto the narrow surfaces 12 of the workpiece 10, i.e. H . added , is .
  • the coating device is in particular a coating device which applies the narrow surface coating material 13 to the narrow surface 12 of the workpiece 10 by means of an energetically activated functional layer 16.
  • the coating device can comprise an application device through which the energetically activated functional layer 16 can be applied to the narrow surface coating material 13 and/or to the narrow surface 12 to be coated.
  • the narrow surface coating material 13 can be provided with the functional layer 16 and fed to the coating device for coating the narrow surface 12.
  • the coating device comprises an activation device, for example a laser device, hot air device, infrared device or the like, through which the functional layer 16 can be energetically activated to form the adhesive effect.
  • an activation device for example a laser device, hot air device, infrared device or the like.
  • the functional layer 16 is energetically activated by the activation device, in particular immediately before it is pressed against the narrow surface 12.
  • the method according to the disclosure also coats transition areas 14 (see FIG. 3) in addition to the narrow surfaces 12, which are provided between adjacent narrow surfaces 12 of the workpiece 10, i.e. which connect adjacent narrow surfaces 12 to one another. If only the coating of the narrow surface 12 is mentioned below, this also means the coating of these transition areas 14, as shown in FIG. 3.
  • the narrow surface coating material 13 is added to the narrow surface 12 in layers.
  • a first layer 15 of the narrow surface coating material 13 is first added directly to the narrow surface 12.
  • the narrow surface coating material 13 is preferably attached to the narrow surface 12 of the workpiece 10 through the energetically activated functional layer 16.
  • the functional layer 16 can be colored according to a color tone of the narrow surface coating material 13.
  • the functional layer preferably comprises polypropylene (PP).
  • the functional layer 16 can be attached to the surface of the narrow surface coating material 13 facing the narrow surface 12 before the coating process. Likewise, the functional layer 16 can be provided by a Process step of the coating process can be applied to the surface of the coating material 13 or to the narrow surface 12.
  • a second layer 17 of the narrow surface coating material 13 is added to this first layer 15.
  • the second layer 17 is attached to a surface 18 of the first layer 15 opposite the surface 18 facing the narrow surface 12.
  • the first layer 15 and the second layer 17 of the narrow surface coating material 13 are also joined together by the energetically activatable functional layer 16.
  • this functional layer 16 can have a very thin layer thickness and be colored accordingly, a seamless connection can be formed between the first layer 15 and the second layer 17 of the narrow surface coating material 13.
  • a third layer 19 of the narrow surface coating material 13 is added to the second layer 17.
  • the third layer 19 is attached to a surface 18 of the second layer 17 opposite the surface 18 facing the narrow surface 12. It is understood that the method according to the disclosure does not apply to those shown in FIG. 1 shown number of three layers 15, 17, 19 of the narrow surface coating material 13 is limited, but in the same way any number of layers of the narrow surface coating material 13 can be put together in layers, in particular two or more than three layers.
  • the individual layers of the narrow surface coating material 13 are each joined together by means of the energetically activated functional layer 16. In this way, any thickness of the coating can be formed on the narrow surface 12.
  • the surfaces 18 of the layers 15, 17, 19 of the narrow surface coating material 13 that face one another and are to be joined together are manipulated before joining, in particular provided with a profiling 20.
  • the profiling 20 is preferably designed as a longitudinal profiling in a longitudinal direction of the narrow surface coating material 13. However, the profiling 20 can also be formed transversely to the longitudinal direction, obliquely to the longitudinal direction or through combinations of these.
  • the profiling 20 is preferably designed as a groove profile.
  • the surfaces 18 of the narrow surface coating material 13 to be joined are each provided with a profile 20 that corresponds to one another.
  • the profiling 20 is preferably formed in the surfaces 20 of the narrow-surface coating material 13 by a processing tool before the joining of two layers, for example by a profiling tool, a milling tool or the like.
  • FIGS. 2 and 3 show the workpiece 10 with the three assembled layers 15, 17, 19 of the narrow surface coating material 13 attached to the narrow surface 12 in an intermediate step of the coating process, with Fig. 2 showing the workpiece 10 in a schematic perspective sectional view and Fig 3 is a schematic view from above of the workpiece 10.
  • the layers 15, 17, 19 of the narrow surface coating material 13 can be attached to the narrow surface 12 with a projection relative to the wide surface 11 of the workpiece 10. The processing of this supernatant is described in more detail below with reference to FIG. 4.
  • the layers 15, 17, 19 of the narrow surface coating material 13 are added in layers both to the narrow surfaces 12 of the workpiece 10 and to the transition regions 14 formed between adjacent narrow surfaces 12.
  • the transition regions 14 form a narrow surface region which connects adjacent, ie adjoining narrow surfaces 12 with one another.
  • the transition region 14 forms a rounded corner region between adjacent narrow surfaces 12.
  • the transition region 14 preferably has a curve radius R of 30 mm or less.
  • the transition region 14 preferably has a curve radius R of 20 mm or less.
  • the transition region 14 particularly preferably has a curve radius R of 10 mm or less.
  • a layer of the narrow surface coating material 13 may have a material thickness of 2 mm or less, of 1.5 mm or less, or of 1 mm or less.
  • any overall thickness of the narrow surface coating can be formed.
  • Fig. 4 shows a schematic sectional view of an embodiment of the workpiece 10 after the coating process.
  • the edge regions of the layers 15, 17, 19 of the narrow surface coating material 13 are processed together and provided with a contour 21.
  • the contour 21 is along a longitudinal extent of the
  • Narrow surface coating material 13 is formed, in particular by a machining process using a Machining tool, for example a milling tool, a cutting tool or the like.
  • all layers 15, 17, 19 of the narrow surface coating material 13 are at least partially processed by the processing tool in a common processing process.
  • all layers 15, 17, 19 of the narrow surface coating material 13 are processed by the machining process in such a way that the contour 21 is formed as a radius profile, a barrel profile, a roof profile, a half-bar profile or any other profile.
  • the contour 21 also creates a flush transition from the coating on the narrow surfaces 12 to the wide surfaces 11 of the workpiece 10.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé pour revêtir des surfaces étroites (12) d'une pièce (10) en particulier en forme de plaque, qui est réalisée de préférence au moins en partie en bois, en matériaux dérivés du bois, en matière plastique ou analogue, au moins une surface étroite (12) de la pièce (10) et/ou au moins une zone de transition (14) entre des surfaces étroites (12) adjacentes étant revêtue(s) par couches d'une première couche (15) et d'au moins une couche supplémentaire (17) d'un matériau de revêtement de surface étroite (13), ces couches (15, 17) de matériau de revêtement de surface étroite (13) étant assemblées au moyen d'une couche fonctionnelle (16) énergétiquement activable. Cette invention se rapporte en outre à une pièce (10).
PCT/EP2023/067964 2022-07-04 2023-06-30 Procédé pour revêtir des surfaces étroites d'une pièce et pièce WO2024008571A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022116591.4A DE102022116591A1 (de) 2022-07-04 2022-07-04 Verfahren zum Beschichten von Schmalflächen eines Werkstücks sowie Werkstück
DE102022116591.4 2022-07-04

Publications (1)

Publication Number Publication Date
WO2024008571A1 true WO2024008571A1 (fr) 2024-01-11

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DE (1) DE102022116591A1 (fr)
WO (1) WO2024008571A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19921189A1 (de) * 1999-05-07 2000-11-09 Reinhard Duespohl Maschinenbau Verfahren zum Ummanteln von Holzwerkstoffplatten und Holzwerkstoffplatten mit ummantelter Deckschicht
EP2127833A1 (fr) * 2008-05-27 2009-12-02 Homag Holzbearbeitungssysteme AG Procédé destiné au revêtement d'une pièce à usiner
EP2127832A1 (fr) * 2008-05-28 2009-12-02 Homag Holzbearbeitungssysteme AG Matériau de rebord
EP2366516A1 (fr) * 2010-03-19 2011-09-21 Düspohl Maschinenbau GmbH Panneau de construction avec revêtement et procédé de revêtement d'un panneau de construction

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE3713773C2 (de) 1987-04-24 1993-11-11 Homag Maschinenbau Ag Verfahren und Vorrichtung zum kontinuierlichen Anleimen von Furnierstreifen auf Kanten von plattenförmigen Werkstücken
DE4208991A1 (de) 1992-03-20 1993-09-23 Alkor Gmbh Kantenband aus kunststoff, verfahren zu dessen herstellung und verwendung
EP0733450B1 (fr) 1995-03-21 1999-06-09 Homag Maschinenbau Ag Procédé et dispositif pour revêtir le cÔté étroit d'une pièce avec des matériaux en bois
DE19545971C1 (de) 1995-12-09 1997-03-13 Polykarp Schnell Gmbh & Co Kg Umleimer
DE19951035C1 (de) 1999-10-22 2001-04-26 Heitz Furnierkantenwerk Gmbh & Starkfurnierkante
DE102007039140A1 (de) 2007-02-16 2008-08-21 MKT Moderne Kunststoff-Technik Gebrüder Eschbach GmbH Mehrschichtiges, thermoplastisches Band
DE202007011911U1 (de) 2007-08-24 2009-01-08 Rehau Ag + Co Kantenleiste für Möbelstücke
DE102013226213A1 (de) 2013-12-17 2015-06-18 Homag Holzbearbeitungssysteme Gmbh Mehrschicht-Beschichtungsmaterial sowie Beschichtungsverfahren
DE102014214035A1 (de) 2014-07-18 2016-01-21 Homag Holzbearbeitungssysteme Gmbh Verfahren, Vorrichtung und Syntheseelement zum Verbinden eines Kantenmaterials mit einem Werkstück

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19921189A1 (de) * 1999-05-07 2000-11-09 Reinhard Duespohl Maschinenbau Verfahren zum Ummanteln von Holzwerkstoffplatten und Holzwerkstoffplatten mit ummantelter Deckschicht
EP2127833A1 (fr) * 2008-05-27 2009-12-02 Homag Holzbearbeitungssysteme AG Procédé destiné au revêtement d'une pièce à usiner
EP2127832A1 (fr) * 2008-05-28 2009-12-02 Homag Holzbearbeitungssysteme AG Matériau de rebord
EP2366516A1 (fr) * 2010-03-19 2011-09-21 Düspohl Maschinenbau GmbH Panneau de construction avec revêtement et procédé de revêtement d'un panneau de construction

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DE102022116591A1 (de) 2024-01-04

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