EP3075503B1 - Dispositif et procédé de revêtement - Google Patents

Dispositif et procédé de revêtement Download PDF

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Publication number
EP3075503B1
EP3075503B1 EP16162851.6A EP16162851A EP3075503B1 EP 3075503 B1 EP3075503 B1 EP 3075503B1 EP 16162851 A EP16162851 A EP 16162851A EP 3075503 B1 EP3075503 B1 EP 3075503B1
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EP
European Patent Office
Prior art keywords
under pressure
workpiece
guide
covering material
applying under
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.)
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Application number
EP16162851.6A
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German (de)
English (en)
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EP3075503A1 (fr
Inventor
Evelyn Killinger
Johannes Schmid
Axel Petrak
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
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Homag GmbH
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    • 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 present invention relates to a coating device according to the preamble of claim 1, in particular a coating device for attaching a strip or strip-shaped coating material on a narrow side of a preferably plate-shaped workpiece.
  • a coating device is used for example in the field of furniture or component industry.
  • Such a device is from the DE 10 2013 002 920 A1 known.
  • the present invention relates to a corresponding method.
  • edge material In the field of narrow-surface coating, it is known to provide cut, strip or strip-shaped coating material (also referred to below as "edge material") with an adhesive and to press it against a narrow side of a workpiece. Since the edge material does not correspond exactly to the length of the narrow side to be coated in order to guarantee a complete covering of the narrow side, a so-called edge projection remains on the front and rear edge of the narrow side.
  • the edge overhang in the case of edge material, which - provided in terms of time - is provided with an adhesive shortly before attachment to a narrow side of a workpiece, is currently at least approximately 2 mm.
  • the edge projection on the front and Rear side in a subsequent step of a cutting tool eg. A scraper, separated.
  • edge material which is provided with an adhesive just prior to attachment to a workpiece edge materials are known, which are precoated with an adhesive. These can also be coextruded edge materials.
  • Such edge materials are treated with a source of energy just prior to attachment to a workpiece so that the adhesive is activated and thus develops adhesive properties.
  • the laser beam 3 is switched in the prior art, when the edge material 2 is already delivered in the direction of a moving workpiece 4 (see FIG. 1a ), or the initial region of the edge material has entered an activation window, which is defined by the laser beam.
  • the irradiation angle or angle of incidence X assumed by the laser beam 3 with respect to the coating material is a factor for the degree of activation, in particular the temperature, at the adhesive to be activated of the coating material.
  • the laser beam 3 is switched on comparatively late at the beginning of the activation of the adhesive, since the laser beam 3 would otherwise strike the pressure roller 1 or other elements or portions of the coating device (see FIG FIG. 1b ), and the pressure roller or the other elements / sections of the coating device would be heated by the laser beam 3 accordingly.
  • bigger ones guarantee Edge projections that the laser beam 3 impinges only on the edge strip material 2.
  • edge material 2 After the edge material 2 is usually stored in the form of coils or rollers, the edge material 2 may possibly deform or bend after the edge material 2 leaves the guide 5 shortly before mounting a workpiece 4. Due to this deformation of the edge material 2, the angle of incidence X of the laser beam 3 changes at the side of the edge material to be activated.
  • edge materials of different thickness are used. By varying the thickness of the edge materials, the activation conditions may also change.
  • the EP 2 251 171 A1 relates to a device for coating workpieces, which are preferably at least partially made of wood, wood materials, plastic or the like, with a feed device for supplying a coating material to a surface to be coated of the workpiece, a pressing device for pressing the coating material to the surface to be coated of the workpiece (2), and a conveyor for inducing a relative movement between the workpiece and at least the pressing device.
  • the pressing device has at least two pressing elements, which are arranged at least partially overlapping in the conveying direction.
  • Claim 1 provides a corresponding device. Furthermore, claim 8 relates to a corresponding method according to the invention. Further preferred embodiments are listed in the dependent claims.
  • the coating device comprises the features according to claim 1.
  • the transfer mechanism ensures that the coating material, which is cut to a particular length in particular, does not curve or otherwise deform in the area of the activation window. Such deformation could occur in particular in a start and end region of the coating material. Furthermore, the transfer mechanism may optionally compensate for variations in the thicknesses of the coating materials in order to ensure a consistent arrangement in the activation window even with different coating materials.
  • the present invention makes it possible to evenly activate those areas located in an initial area or in an end area of the coating material.
  • edge projections can be significantly reduced, or possibly completely eliminated.
  • constant adhesion values between the coating material and the workpiece are ensured.
  • the said coating material is preferably an edge material which is applied to a narrow side of a workpiece.
  • Such edge material is for example made of a plastic material, optionally with an additional decorative layer, and comprises an adhesive.
  • the adhesive may be applied as an additional layer on the coating material.
  • activation window means the range in which the activation energy transmitted by the energy source can act on a coating material or its adhesive agent. Thus, the activation window provides an activation area.
  • the activation window is defined by the outer contours or the cross section of the laser beam.
  • the airflow defines the activation window. The same applies to the other energy sources mentioned.
  • the transfer mechanism comprises a movement device, with which movement device a relative movement between the pressure device and the guide can be provided.
  • a movement device with which movement device a relative movement between the pressure device and the guide can be provided.
  • the movement device can be actuated pneumatically or electrically, in particular by means of a servomotor. If the initial region of the coating material enters, for example, the activation window, the pressure device and the guide are brought closer to one another in order to ensure transfer of the coating material from the guide to the pressure device.
  • the pressing means and the guide are also approximated to ensure transfer of the end portion of the coating material to the pressing means.
  • the movement provided by the transfer mechanism is tuned to the thickness of the coating material.
  • the thickness of the coating material detected or by an input a control device to be transmitted.
  • the movement is pressure-controlled.
  • the movement can also be determined by a defined input or a predetermined value.
  • a resilient transfer element which extends in a region between the pressure device and guide, and / or the end portion of the guide is resilient, and pushes the coating material in the direction of extending in a region between pressure device and guide transfer element.
  • the coating material between the transfer element and guide is clamped, and thus ensures a constant extension of the coating material in the region of the activation window.
  • the coating direction further comprises a detection means, in particular a sensor, which detection means a Captured beginning area and an end portion of the coating material.
  • the information obtained by the detection means can be used to control the transfer mechanism. In this way, the precision of the transfer is further increased.
  • the aforementioned energy source is a laser.
  • the laser beam provided by the laser defines the activation window.
  • the laser has the advantage of a spatially defined, delimited area in which an activation of an adhesive of the coating material is made.
  • the energy source can also be selected from a hot air source, a gassing source, an ultrasound source, a magnetic field source, a microwave source or a plasma source.
  • the energy emitted by these energy sources also defines an activation window in the region of which activation of an adhesive of the coating material is performed.
  • a conveying device for bringing about a relative movement between the pressing device and the respective workpiece is further provided.
  • the workpiece for example, be moved by means of a conveyor.
  • the workpiece is held and the pressure device is guided along or around the workpiece.
  • the present invention is a method for coating a workpiece, in particular a narrow side of a workpiece, with a coating material, in particular a strip or strip-shaped coating material, directed.
  • the method comprises the features according to claim 8.
  • FIG. 2 shows a first embodiment of the present invention.
  • an edge material 2 (coating material) is fed along a guide 5 when a workpiece 4 approaches the area of the pressure zone in the region of the pressure roller 1.
  • the laser beam 3 is switched on as soon as the foremost region (initial region) of the cut edge material 2 enters the activation window defined by the laser beam 3, in which the activation of the adhesive material of the edge material 2 is performed by the laser beam 3.
  • the pressure roller 1 is translationally adjusted in the direction of the guide 5 (see arrow 6 in FIG. 2 ).
  • This adjustment can be done pneumatically or electrically, for example by means of a servo motor.
  • the pinch roller 1 is moved parallel to the direction of movement of the workpiece 4, which workpiece 4 is to be provided with the supplied edge material 2.
  • the pressure roller 1 takes over a support function for the edge material 2 or pushes the edge material 2 against the outlet of the guide 5.
  • deformation of the edge material 2 in the region of the activation window of the laser beam 3 is avoided, and the edge material 2 is in the region of the activation window the laser beam held linear.
  • the pinch roller 1 moved parallel to the direction of movement of the workpiece 4 and a relative movement between the pinch roller 1 and the workpiece 4.
  • the initial portion of the edge material 2 comes into contact with the narrow side of the workpiece 4, and while the pinch roller 1 rotates, the edge material 2 is pressed against the narrow side of the workpiece 4.
  • FIG. 3 shows a second embodiment of the present invention.
  • an edge material 2 is fed along a guide 5, and the edge material 2 is activated at a side facing the workpiece 4 in the region of an activation window of the laser beam 3 through this.
  • the guide 5 is moved to the pinch roller 1 in the case of the second embodiment, as soon as the edge material 2 reaches an end portion of the guide 5.
  • This adjustment can be done pneumatically or electrically, for example by means of a servo motor.
  • the edge material 2 is supplied, and the laser beam 3 is switched on as soon as a tip of the edge material 2 reaches the activation window of the laser beam 3.
  • the guide 5 As soon as the initial region of the edge material 2 reaches the end of the guide 5, in the direction of the pinch roller 1 (parallel to the direction of relative movement between the workpiece 4 and pinch roller 1) moves. After the initial portion of the edge material 2 has been transferred to the pinch roller 1, the guide 5 oscillates back in the opposite direction.
  • the coating device comprises a stationarily arranged pressure roller 1, and a guide 5, with which an edge material 2 is guided into the area of the pressure roller 1.
  • a laser beam 3 is directed onto the side of the edge material 2 to be activated so that an adhesive of the edge material 2 is activated shortly before the application of the edge material 2 to a workpiece 4 which moves relative to the pressure roller 1.
  • the embodiment is characterized in that a resilient element 8 is provided in the outlet region of the guide 5.
  • the resilient element 8 is wedge-shaped in the present embodiment, so that it tapers in the direction of the pressure roller 1.
  • the resilient member 8 is inserted into the area between the guide 5 and the outer periphery of the pinch roller 1, and the tapered portion of the resilient member 8 can be provided near the area of the nip.
  • an edge material 2 is supplied to the area of the pinch roller 1 to be applied to a narrow side of the workpiece 4.
  • a laser beam 3 defines in an outlet region of a guide for the coating material 2 an activation window in which the adhesive of the coating material 2 is activated.
  • the power of the laser energy is adjusted according to the change in position of the edge material.
  • the position of the edge material 2 is determined by measurement and the energy output is regulated accordingly.
  • the temperature can be measured on the edge material 2 during activation by means of a sensor, and the laser power can be readjusted accordingly.
  • a diaphragm 10 or a lens is provided, which diaphragm / lens is suitable for limiting the activation window of the laser beam 3, ie for reducing or expanding it.
  • the adjustment of the aperture 10, with which the limits of the activation window are varied simultaneously or independently, is indicated by corresponding arrows A and B in FIG FIG. 5 illustrated.
  • the diaphragm 10 is opened continuously, and thus the Activation window expanded.
  • the widening of the activation window is preferably carried out in such a way that a side of the diaphragm 10 facing the workpiece 4 is moved (arrow B in FIG. 5 ).
  • the opening movement of the side of the diaphragm 10 is preferably carried out at a speed which corresponds to the feed speed of the edge material 2.
  • the activation window is extended so that it follows the initial region of the edge material 2. Consequently, the expanding laser beam 3 does not reach the pressure roller 1, or does so only insignificantly, and thus heating of the pressure roller 1 is avoided.
  • the present invention can also be used in the field of stationary technology, in which a workpiece by means of Saugspannern or clamping devices held and a coating unit is moved with a pinch roller relative to the held workpiece.

Claims (9)

  1. Dispositif de revêtement, en particulier pour le montage d'un matériau de revêtement (2) en forme de bandelette ou de bande sur un côté étroit d'une pièce (4) de préférence en forme de plaque, avec
    un dispositif de pression (1), en particulier un rouleau de pression, avec lequel un matériau de revêtement (2) est pressé contre une pièce (4),
    un guide (5), le long duquel le matériau de revêtement (2) est glissé dans la zone du dispositif de pression (1), et
    une source d'énergie, avec laquelle une énergie d'activation est fournie pour activer un adhésif prévu au niveau du matériau de revêtement (2) avant la pression du matériau de revêtement (2) sur une pièce (4),
    dans lequel un mécanisme de transfert (6, 7, 8) est prévu, avec lequel le matériau de revêtement est transféré du guide (5) au dispositif de pression (1), dans lequel le mécanisme de transfert présente un dispositif de déplacement pour provoquer un déplacement relatif entre le dispositif de pression (1) et le guide (5),
    caractérisé en ce que
    (a) le mécanisme de transfert est aménagé pour déplacer le dispositif de pression (1) parallèlement à la direction d'un déplacement relatif entre le dispositif de pression (1) et la pièce (4),
    et/ou
    (b) le mécanisme de transfert est aménagé pour déplacer le guide (5) parallèlement à la direction d'un déplacement relatif entre le dispositif de pression (1) et la pièce (4).
  2. Dispositif de revêtement selon la revendication 1,
    caractérisé en ce que le dispositif de déplacement est un dispositif de déplacement pneumatique ou électrique.
  3. Dispositif de revêtement selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un déplacement fourni par le mécanisme de transfert est adapté à l'épaisseur du matériau de revêtement, en particulier commandé par pression ou une entrée définie.
  4. Dispositif de revêtement selon l'une quelconque des revendications précédentes, caractérisé en ce que le mécanisme de transfert présente un élément élastique (8), qui s'étend dans une zone entre le dispositif de pression (1) et le guide (5), ou le mécanisme de transfert présente un élément rigide, qui s'étend dans une zone entre le dispositif de pression (1) et une section d'extrémité élastique du guide (5).
  5. Dispositif de revêtement selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de revêtement présente en outre un moyen de détection, qui détecte au moins une zone de début et une zone de fin du matériau de revêtement (2).
  6. Dispositif de revêtement selon l'une quelconque des revendications précédentes, caractérisé en ce que la source d'énergie est un laser, ou la source d'énergie est choisie parmi une source d'air chaud ou de gazage, une source d'ultrasons, une source de champ magnétique, une source de micro-ondes ou une source de plasma.
  7. Dispositif de revêtement selon l'une quelconque des revendications précédentes, présentant en outre un dispositif de transport pour provoquer un déplacement relatif entre le dispositif de pression (1) et la pièce (2) respective.
  8. Procédé de revêtement d'une pièce (4), en particulier d'un côté étroit d'une pièce, avec un matériau de revêtement (2), en particulier d'un matériau de revêtement (2) en forme de bandelette ou de bande, avec un dispositif de revêtement, qui présente un dispositif de pression (1), en particulier un rouleau de pression, un guide (5) pour le matériau de revêtement ainsi qu'une source d'énergie, avec laquelle source d'énergie une énergie d'activation est fournie pour activer un adhésif prévu au niveau du matériau de revêtement (2) avant la pression du matériau de revêtement (2) sur une pièce (4),
    dans lequel le procédé présente les étapes suivantes :
    le fait d'amener un matériau de revêtement (2) le long du guide (5),
    caractérisé par un déplacement relatif d'un dispositif de pression (1) et du guide (5) l'un par rapport à l'autre pour transférer le matériau de revêtement du guide (5) au dispositif de pression (1),
    dans lequel le dispositif de pression (1) est déplacé pour le transfert parallèlement à la direction d'un déplacement relatif entre le dispositif de pression (1) et la pièce (4),
    et/ou
    le guide (5) est déplacé pour le transfert parallèlement à la direction d'un déplacement relatif entre le dispositif de pression (1) et la pièce (4).
  9. Procédé selon la revendication 8, caractérisé en ce que le déplacement fourni par le mécanisme de transfert est adapté à l'épaisseur du matériau de revêtement, en particulier commandé par pression ou une entrée définie.
EP16162851.6A 2015-04-02 2016-03-30 Dispositif et procédé de revêtement Active EP3075503B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015206010.1A DE102015206010A1 (de) 2015-04-02 2015-04-02 Beschichtungsvorrichtung sowie Verfahren

Publications (2)

Publication Number Publication Date
EP3075503A1 EP3075503A1 (fr) 2016-10-05
EP3075503B1 true EP3075503B1 (fr) 2018-12-05

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EP16162851.6A Active EP3075503B1 (fr) 2015-04-02 2016-03-30 Dispositif et procédé de revêtement

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EP (1) EP3075503B1 (fr)
DE (1) DE102015206010A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107708947A (zh) * 2015-04-13 2018-02-16 未来木材工机株式会社 木质层积体的制造方法
DE102019103267A1 (de) 2019-02-11 2020-08-13 Homag Gmbh Verfahren sowie Vorrichtung zum Beschichten einer Schmalseite eines plattenförmigen Werkstücks
DE102019113932A1 (de) * 2019-05-24 2020-11-26 Homag Gmbh Verfahren zum Beschichten eines Bauteils sowie Beschichtungsvorrichtung
DE102020130145A1 (de) 2020-11-16 2022-05-19 Homag Gmbh Beschichtungsvorrichtung sowie Verfahren
AT524498B1 (de) * 2020-11-26 2023-04-15 Felder Kg Vorrichtung zur Beschichtung einer Oberfläche
DE102021104499A1 (de) 2021-02-25 2022-08-25 Homag Gmbh Vorrichtung und Verfahren zur Vergütung eines Werkstücks

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE3914461C2 (de) * 1989-05-02 1997-03-27 Klessmann Ima Norte Maschfab Maschine zum Anleimen von Kantenmaterial an plattenförmige Werkstücke
DE202009006793U1 (de) * 2009-05-12 2010-09-23 Homag Holzbearbeitungssysteme Ag Vorrichtung zum Beschichten von Werkstücken
DE102009050858A1 (de) * 2009-10-27 2011-04-28 Ima Klessmann Gmbh Holzbearbeitungssysteme Vorrichtung und Verfahren zur Bekantung von Werkstücken
DE102010004092B4 (de) * 2010-01-07 2014-01-09 Ima Klessmann Gmbh Holzbearbeitungssysteme Vorrichtung und Verfahren zur Bekantung von Werkstücken
ES2480270T3 (es) * 2010-01-18 2014-07-25 Homag Holzbearbeitungssysteme Ag Dispositivo y procedimiento para el revestimiento de piezas de trabajo
EP2422947B1 (fr) * 2010-08-24 2013-01-09 Homag Holzbearbeitungssysteme AG Dispositif de revêtement de pièces
DE102013001893A1 (de) * 2013-02-02 2014-08-07 Ima Klessmann Gmbh Holzbearbeitungssysteme Bekantungsvorrichtung
DE102013002920B4 (de) * 2013-02-21 2018-06-07 Ima Klessmann Gmbh Holzbearbeitungssysteme Bekantungsvorrichtung
DE102014103725A1 (de) * 2014-03-19 2015-10-08 Holz-Her Gmbh Vorrichtung zum Fixieren eines Kantenmaterials

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
DE102015206010A1 (de) 2016-10-06
EP3075503A1 (fr) 2016-10-05

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