EP2251166B1 - Agrégat de collage - Google Patents

Agrégat de collage Download PDF

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Publication number
EP2251166B1
EP2251166B1 EP10162657.0A EP10162657A EP2251166B1 EP 2251166 B1 EP2251166 B1 EP 2251166B1 EP 10162657 A EP10162657 A EP 10162657A EP 2251166 B1 EP2251166 B1 EP 2251166B1
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EP
European Patent Office
Prior art keywords
glue
gluing unit
application roller
glue application
unit according
Prior art date
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Active
Application number
EP10162657.0A
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German (de)
English (en)
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EP2251166A1 (fr
Inventor
Johannes Schmid
Klaus Reich
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Homag GmbH
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Homag Holzbearbeitungssysteme GmbH
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Publication of EP2251166A1 publication Critical patent/EP2251166A1/fr
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined

Definitions

  • the present invention relates to a gluing unit for use in a device for processing plate-shaped workpieces, in particular of wood or wood-based materials, according to the preamble of claim 1.
  • the gluing unit serves for gluing an edge material to a narrow surface of the workpiece. It has a housing, on which a glue application roller for applying glue is mounted on the narrow surface of the workpiece.
  • the gluing unit can also be coupled to a drive, by means of which the glue application roller can be set in rotation.
  • the gluing unit is composed of two basic elements, namely a supply unit and a gluing unit.
  • the gluing unit can be coupled to a spindle unit of a machining center.
  • the Ceileimende edge material is guided in the region of a glue applicator roll and coated with this one-sided with glue from a glue container. Subsequently, the coated edge material is adjusted to the edge of the workpiece.
  • the slot nozzle must always be tangential to the workpiece surface. Tracking is difficult with flexible material contours. This limits the minimum radius and geometry to be machined.
  • the gluing unit is here an integral part of a machine for processing panels made of wood or the like.
  • This machine comprises a mobile bridge which carries an assembly which serves to apply an edge strip to the narrow surface of the workpieces.
  • the assembly includes a loading unit that moves the edge strip against the contour.
  • a pressure roller is part of the feed unit.
  • Said assembly also includes the gluing unit with an applicator roller for applying the glue to the periphery of the workpiece.
  • This applicator is provided in the feed direction of the group in front of the pressure roller and we are driven by a separate motor whose output shaft is parallel to the axis of the applicator roller.
  • Another drive is provided to control the angular position of the entire assembly about an axis that is parallel to the longitudinal axes of the pressure roller and the applicator roller.
  • the EP 0 945 235 A2 shows the features of the preamble of claim 1.
  • the DE 19 15 587 A1 shows a method of bonding a strip of material to the side of a workpiece, wherein the workpiece is pressed against rotation of its own plane while simultaneously feeding a spring urged by a spring against the side of the workpiece Adhesive strip is driven.
  • the apparatus shown comprises a heated glue application container with a glue application roller and a glue delivery device.
  • Object of the present invention is to develop a gluing unit such that Anleimvortician can be realized more flexible and smaller radii and more complicated geometries can be edited by means of the glueing unit.
  • the glue application roller can thus be set directly in rotation by means of the drive. Due to the central arrangement of the glue applicator roll in the gluing unit, the machining processes to be carried out with the gluing unit according to the invention are also clearly programmable from a CNC-technical point of view. In other words, the glue application roller is firmly integrated in the glueing unit and can thereby be CNC contoured around the workpiece driven.
  • the glue application takes place directly on the narrow surface of the workpiece.
  • the direct glue application has the advantage that better adhesion can be achieved due to the open-pore structure of the workpiece material.
  • the glueing unit preferably also has an edge feed for feeding the edge material to be applied to the narrow surface of the workpiece, which is likewise mounted on the housing.
  • the central arrangement of the glue application roller according to the invention then makes it possible that the edge feed with respect to the housing in order an axis is pivotable about to change the lead angle of the edge material to the narrow surface of the workpiece.
  • the edge guide can thus be pivoted about a separate axis, a so-called C-axis, with respect to the housing of the gluing unit and around the glue application roller.
  • the entry angle of the edge material can always be suitably adapted to the contour of the workpiece, by always selecting the appropriate entry angle for shallower and steeper contours. So also the treatment of smaller radii becomes possible.
  • the entry angle of the edge material is controlled independently of the angle of the glue applicator roll.
  • the adjustable edge feed can be provided for example in the form of a feed path.
  • the axis about which the edge feed is pivotable coincides suitably with the longitudinal axis of the glue applicator roll.
  • the edge feed is thus arranged pivotable about the central longitudinal axis of the glue applicator roll.
  • the gluing unit can also have a pressure roller which is provided in the processing direction of the workpieces behind the glue application roller and serves to press the edge material to be applied on the glue-coated workpiece surface.
  • the longitudinal axis of the pressure roller preferably also runs parallel to the said axis, around which the edge feed is pivotable, which, as stated, is preferably the longitudinal axis of the glue application roller.
  • the pressure roller is then preferably independent of the edge feed with respect to the housing also to one
  • Axis pivoted which may coincide with the longitudinal axis of the glue applicator roll.
  • a glue container may be present for storing the glue to be applied. If the glue application roller is mounted at one end in the housing, the other, free end of the glue application roller can then be located in the glue container. Preferably, then a guide means is provided to convey the glue by rotation of the glue application roller out of the glue container in the direction of the first end of the glue application roller. By rotation of the glue application roller, the glue on the guide device rises up into the area in which the glue is transferred from the glue application roller to the workpiece surface.
  • means may be provided for heating the glue to its operating temperature.
  • the gluing unit according to the invention operates without own edge transport.
  • a device for transporting the edge material and / or a device for cutting the edge material is provided, which are pivotable about the said axis together with the edge feed.
  • the gluing unit according to the invention can be used as a change unit or a fixed unit.
  • the gluing unit is firmly coupled to the drive.
  • the drive will be realized as a drive motor.
  • the longitudinal axis of the centrally arranged glue application roller is then in the extension of the output axis of this drive motor.
  • the gluing unit can be designed in particular for use in a machining center for processing plate-shaped workpieces, which consist in particular of wood or wood-based materials.
  • the machining center has a spindle unit for receiving machining tools and processing units.
  • the gluing unit is designed so that it can be exchanged from a storage in the spindle unit and coupled to the spindle unit via an interface.
  • the gluing unit is configured such that the longitudinal axis of the glue application roller in the replaced state lies in the extension of the longitudinal axis of a work spindle mounted in the spindle unit of the machining center.
  • the glue application roller is thus set directly in rotation via the spindle unit, without the need for a separate drive would be provided.
  • the stocking may be any known tool stocker (e.g., disc or chain changer) or a separate device that is appropriately constructed in, on, or around the machine.
  • tool stocker e.g., disc or chain changer
  • separate device that is appropriately constructed in, on, or around the machine.
  • the gluing unit is preferably completely replaceable in the spindle unit.
  • the gluing unit according to the invention can be used in particular as a changing unit in a CNC machining center for processing plate-shaped workpieces.
  • Such a machining center is schematically in FIG. 1 shown.
  • a machining center is schematically in FIG. 1 shown.
  • it comprises a machine frame 1 which is equipped with two straight guides 2 extending in the X direction.
  • a stand 6 is movable in the X direction mounted, which carries on its upper side a boom 3, which extends in the Y direction.
  • the boom 3 has at its in FIG. 1 right side extending in the Y direction straight guide 4, on which a spindle unit 5 is movably mounted in the Y direction.
  • the spindle unit 5 can be moved in the X and Y directions via a processing table 7 connected to the machine frame 1, which carries the plate-shaped workpieces W to be processed.
  • the arrangement is made such that the spindle unit 5 can reach each point of the machining table 7 and in this way can process one or more workpieces W arranged on the machining table 7.
  • the spindle unit 5 and / or stored in this work spindle (not shown), this can be done via corresponding guides in a conventional manner additionally in the Z direction, ie with respect to the plane of the FIG. 1 be moved up and down.
  • the workpiece W is clamped on the processing table 7 with conventional clamping means, for example suction devices (not shown).
  • a magazine assembly 9 is attached to the boom 3 or the stand 6. This can be configured in a known manner and carries the necessary for the implementation of the machining operations on the workpiece W machining tools and processing units.
  • the magazine assembly 9 is designed in the form of a disk magazine.
  • the magazine arrangement 9 is located in the area of influence of the spindle unit 5, so that the respective machining tool or processing unit of the magazine arrangement 9 (for example, in the so-called pick-up method) is selected according to the specifications. remove and after processing can settle in this again.
  • the processing tools or processing units are in a rest position.
  • the work spindle of the spindle unit 5 is equipped with a so-called interface (not shown), via which the machining tools and processing units are detected and held during the machining process and supplied with all necessary for their function power and control means. This primarily includes the supply of the torque required for the respective work process as well as the supply of pneumatic, hydraulic or electrical energy including the supply of data for the control and regulation.
  • FIG. 1 shown machining center is surrounded by a protective wall 10.
  • a protective wall 10 In the region of the right end of the travel path of the jib 3 and the spindle unit 5, an edge magazine 11 is arranged in the protective wall 10, which cooperates with an arranged between the edge magazine 11 and the machining center edge transfer device 12.
  • FIGS. 2 and 3 first show the basic structure of a first preferred embodiment of a gluing unit according to the invention.
  • the gluing unit has a housing 13, which is equipped on its upper side in a manner known per se with an aggregate-side interface, with which the gluing unit can be coupled to the work spindle of the spindle unit 5 of the machining center.
  • the interface includes in a known manner a cone 16 for torque transmission.
  • the longitudinal axis L K of the cone 16 is in the coupled state in the extension of the longitudinal axis of the work spindle of the spindle unit 5.
  • the interface also includes connection contacts (not shown) for the supply of electrical energy and for the supply of data for control and regulation.
  • Gluing unit shown is for coating the narrow surface of the workpiece W with glue and for subsequent application of an edge material K (hereinafter also simply “edge K") set up on the coated narrow surface.
  • edge K edge material
  • the glue application to the narrow surface of the workpiece W takes place by means of a glue application roller 15.
  • the glue application roller 15 is provided centrally in the glueing unit: its longitudinal axis L L lies in the extension of the longitudinal axis L K of the cone 16. In the coupled state, the longitudinal axis L L of the glue application roller 15 thus also in the extension of the longitudinal axis of the work spindle of the spindle unit 5 of the machining center.
  • the glue application roller 15 is thus set directly via the spindle unit 5 in rotation, without the provision of a separate drive would be provided.
  • the gluing unit is moved with the center of the glue application roller 15 by means of CNC technology around the workpiece contour. Due to the central arrangement of the glue application roller 15 in the glueing unit, the machining processes to be carried out with the glueing unit according to the invention are clearly programmable from a CNC technical point of view.
  • the edge K is brought by means of an edge feed device to the narrow surface of the workpiece W, which is formed in the present embodiment as Kantenzu Switzerlandbahn 24.
  • the edge K is under an edge feed angle ⁇ (s. FIG. 3 ) guided against the workpiece surface.
  • a pressure roller 17 In the immediate vicinity of the position at which the edge K is guided to the workpiece W, a pressure roller 17 is provided, which presses the edge K to the glue-coated narrow surface of the workpiece W.
  • the longitudinal axis L A of the pressure roller 17 extends parallel to the longitudinal axis L L of the glue application roller 15.
  • a support arm 19 for the pressure roller 17 is rotatably mounted on the housing 13 of the gluing unit.
  • the pressure roller 17 can pivot about the longitudinal axis L L of the glue application roller 15 on the support arm 19 around.
  • the pressure roller 17 pivots automatically.
  • the glue applicator roller 15 results in a more flexible applicability of the glueing unit.
  • no particular angle of attack of the glue application element with respect to the workpiece surface needs to be maintained, since the glue application roller 15 can pick up the glue around its entire circumference and transfer it to the workpiece surface.
  • the adjustment of the edge feed angle C is made by pivoting the edge feed path 24 with respect to the housing 13 about a separate pivot axis (C-axis).
  • FIG. 4 shows a plan view of the glue container 14 of the gluing unit according to the invention.
  • the glue 18 is conveyed in a semi-open guide tube 20 having a substantially semicircular cross-section along the glue applicator roll 15 upwards in the upper region where the glue is applied to the workpiece W.
  • the amount of glue on the glue application roller 15 can be determined by the distance between the guide tube 20 and the glue application roller 15 in the glue container 14.
  • a slider or a solid wall can be used instead of the guide tube 20 .
  • FIG. 5 shows a plan view of the first embodiment of the gluing unit according to the invention, from which give more details of the structure of the glueing unit. It can also be seen here, the glue applicator roll 15, the guide tube 20 for the glue and the pressure roller 17 for pressing the edge K to the workpiece, not shown here.
  • the glue application roller is provided centrally in the glue application unit.
  • the edge feed path 24 is pivotable about the longitudinal axis of the glue application roller 15. Regardless of the pressure roller 17 is pivotally mounted about the same axis.
  • the glue 18 used is in solid form at ambient temperature, generally in the form of granules.
  • the glue 18 must therefore be brought to a temperature above its melting temperature, usually to about 200 ° C.
  • the thermal treatment of the glue 18 can take place in the storage location of the glueing unit, i. take place in the magazine assembly 9 and / or if the unit was selected.
  • FIG. 6 shows three possibilities for the thermal treatment of the glue 18.
  • the heat can be generated directly, eg with heating cartridges (21 in FIG. 17 a), or indirectly, eg via a separate heating plate (22 in FIG. 17 b) or inductive (23 in FIG. 17 c)).
  • the glue 18 is thermally processed directly in the gluing aggregate, then the above-described interface of the gluing aggregate is used to transfer the energy required for this purpose.
  • the energy can be taken from the existing network or generated by means of its own generator.
  • the edge feed into the gluing unit can be done manually or automatically.
  • the gluing unit according to the invention operates without own edge transport.
  • the edge K to be applied is positioned in the region of the pressure roller 17 ( FIG. FIG. 7 ) and accordingly with the einêtnden pressure roller 17 is pressed to the workpiece W, so that the rest of the edge band K is then automatically pulled out when driving around the workpiece contour.
  • FIG. 8 A correspondingly modified embodiment of the gluing unit according to the invention is shown in FIG FIG. 8 shown. This embodiment differs from the one described so far in that an edge transport device 26 and a cutting device 25 are provided. In addition, a sensor 27 for detecting the beginning of the A already applied to the workpiece W edge K is provided. This results in the possibility of completely bypassing the workpiece surface (360 °) and correspondingly cutting off the edge K at the end of the piecing process.
  • Both the transport device 26 and the cutting device 25 are pivotable together with the edge feed 24 about said axis C.
  • the gluing unit according to the invention can be designed as a simple, cost-effective gluing unit for four-sided Verieimung or as a more complex gluing unit for the 360 degree gluing of workpieces.
  • the glueing unit according to the invention can be used in various types of processing machines, such as e.g. Jib machines and gantries are used as a single unit or in combination with other units.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Coating Apparatus (AREA)

Claims (15)

  1. Agrégat de collage servant à coller un matériau de rebord (K) au niveau d'une tranche d'une pièce à usiner (W), présentant une forme de plaque, qui constituée en particulier de bois ou de matériaux à base de bois,
    l'agrégat de collage présentant un boîtier (13), au niveau duquel est logé un rouleau applicateur de colle (15) servant à appliquer de la colle (18) sur la tranche de la pièce à usiner (W), et
    l'agrégat de collage pouvant en outre être couplé à un mécanisme d'entraînement, lequel permet d'amener le rouleau applicateur de colle (15) en rotation,
    le rouleau applicateur de colle (15) étant prévu au centre dans l'agrégat de collage de sorte que son axe longitudinal (LL) se trouve dans le prolongement d'un axe de sortie du mécanisme d'entraînement, et
    l'agrégat de collage comprenant un réservoir de colle (14) servant à stocker la colle (18) à appliquer,
    caractérisé en ce que
    le rouleau applicateur de colle (15) est logé par l'une de ses extrémités dans le boîtier (13), et en ce que l'autre extrémité libre du rouleau applicateur de colle (15) se trouve dans le réservoir de colle (14) de sorte que le rouleau applicateur de colle se trouve, en fonctionnement, dans la colle (18).
  2. Agrégat de collage selon la revendication 1, dans le cadre duquel un système d'amenée au rebord (24) servant à amener le matériau de rebord (K) à coller à la tranche de la pièce à usiner (W) est logé au niveau du boîtier (13), et en ce que le système d'amenée au rebord (24) peut être pivoté par rapport au boîtier (13) autour d'un axe (C) afin de modifier l'angle d'admission (a) du matériau de rebord (K) au niveau de la tranche de la pièce à usiner (W).
  3. Agrégat de collage selon la revendication 2, dans le cadre duquel le système d'amenée au rebord (24) est prévu sous la forme d'une bande d'amenée.
  4. Agrégat de collage selon la revendication 2 ou 3, dans le cadre duquel l'axe (C) coïncide avec l'axe longitudinal (LL) du rouleau applicateur de colle (15).
  5. Agrégat de collage selon l'une quelconque des revendications précédentes, comprenant en outre un galet de pression (17), qui est prévu derrière le rouleau applicateur de colle (15) dans la direction d'usinage des pièces à usiner.
  6. Agrégat de collage selon la revendication 5, dans le cadre duquel le galet de pression (17) est logé par rapport au boîtier (13) de manière à pouvoir pivoter autour d'un axe, qui coïncide de préférence avec l'axe longitudinal (LL) du rouleau applicateur de colle.
  7. Agrégat de collage selon la revendication 2 et l'une quelconque des revendications 5 ou 6, dans le cadre duquel l'axe longitudinal (LA) du galet de pression (17) s'étend de la même manière de manière parallèle par rapport audit axe (C).
  8. Agrégat de collage selon la revendication 1, dans le cadre duquel on prévoit un dispositif de guidage (20) afin d'acheminer la colle (18), par rotation du rouleau applicateur de colle (15), en dehors du réservoir de colle (14), en direction de la première extrémité du rouleau applicateur de colle (15), dans une zone, dans laquelle la colle (18) est transférée du rouleau applicateur de colle (15) sur la tranche de la pièce à usiner.
  9. Agrégat de collage selon l'une quelconque des revendications précédentes, comprenant en outre des moyens (21, 22, 23) servant à chauffer la colle (18) de manière à la porter à sa température de service.
  10. Agrégat de collage selon la revendication 2, comprenant en outre un dispositif (26) servant à transporter le matériau de rebord (K), lequel dispositif de transport (26) peut être pivoté, conjointement avec le système d'amenée au rebord (24), autour dudit axe (C).
  11. Agrégat de collage selon la revendication 2, comprenant en outre un dispositif (25) servant à découper à la bonne longueur le matériau de rebord (K), lequel dispositif de découpe (25) peut être pivoté, conjointement avec le système d'amenée au rebord (24), autour dudit axe (C).
  12. Agrégat de collage selon l'une quelconque des revendications précédentes, l'agrégat de collage étant couplé de manière fixe au mécanisme d'entraînement.
  13. Agrégat de collage selon l'une quelconque des revendications précédentes, destiné à être utilisé dans un centre d'usinage aux fins de l'usinage de pièces à usiner, présentant une forme de plaque, qui sont constituées en particulier de bois ou de matériaux à base de bois,
    le centre d'usinage présentant une unité à broches (5) servant à recevoir des outils d'usinage et des agrégats d'usinage, et l'agrégat de collage étant configuré de telle manière qu'il peut être déplacé, d'un système de stockage (9), dans l'unité à broches (5) et qu'il peut être accouplé à l'unité à broches (5) par l'intermédiaire d'une interface (16), et
    l'agrégat de collage étant configuré de telle manière que l'axe longitudinal (LL) du rouleau applicateur de colle (15) se trouve, à l'état interchangé, dans le prolongement de l'axe longitudinal d'une broche de travail logée dans l'unité à broches (5).
  14. Agrégat de collage selon la revendication 13, dans le cadre duquel l'agrégat de collage peut être déplacé en totalité dans l'unité à broches (5).
  15. Agrégat de collage selon l'une quelconque des revendications précédentes, le rouleau applicateur de colle étant amené en rotation directement par l'intermédiaire de l'unité à broches.
EP10162657.0A 2009-05-12 2010-05-12 Agrégat de collage Active EP2251166B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200920006794 DE202009006794U1 (de) 2009-05-12 2009-05-12 Anleimaggregat

Publications (2)

Publication Number Publication Date
EP2251166A1 EP2251166A1 (fr) 2010-11-17
EP2251166B1 true EP2251166B1 (fr) 2014-05-07

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EP (1) EP2251166B1 (fr)
DE (1) DE202009006794U1 (fr)
ES (1) ES2486266T3 (fr)

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DE102011006319A1 (de) * 2011-03-29 2012-10-04 Homag Holzbearbeitungssysteme Ag Maschinensystem
DE102011088230A1 (de) 2011-12-12 2013-06-13 Homag Holzbearbeitungssysteme Gmbh Beschichtungsverfahren und Beschichtungsvorrichtung
DE102017208406A1 (de) * 2017-05-18 2018-11-22 Homag Gmbh Vorrichtung und Verfahren zum Aktivieren von Haftmittel
DE102017122701A1 (de) 2017-09-29 2019-04-04 Homag Gmbh Beschichtungsvorrichtung sowie Beschichtungsverfahren
DE102019130059A1 (de) * 2019-11-07 2021-05-12 Weinmann Holzbausystemtechnik Gmbh Werkzeugmaschine mit Wechselvorrichtung für Befestigungsaggregate
DE102019135438A1 (de) * 2019-12-20 2021-07-08 Homag Gmbh Kappeinrichtung, Beschichtungseinrichtung sowie Verfahren zum Ablängen eines Schmalflächenbeschichtungsmaterials
DE102020129553A1 (de) 2020-11-10 2022-05-12 Ima Schelling Deutschland Gmbh Haftmittelauftragsvorrichtung, Kantenanleimmaschine und Verfahren zum Betrieb einer solchen
DE102021103136A1 (de) 2021-02-10 2022-08-11 Ima Schelling Deutschland Gmbh Vorrichtung zum Beschichten der Schmalseite von plattenförmigen Werkstücken und Verfahren zum Auftragen von Haftmittel
DE102021112078B3 (de) 2021-05-10 2022-08-18 Oav Equipment And Tools, Inc. Klebstoff-auftragsmechanismus einer kantenumleimmaschine mit klebstoff-mengenregler
DE102022113672A1 (de) 2022-05-31 2023-11-30 Homag Gmbh Bearbeitungseinrichtung mit einem Beschichtungsaggregat sowie Verfahren zum Applizieren von Haftmittel
DE102022118498B3 (de) 2022-07-25 2023-10-26 Oav Equipment And Tools, Inc. Kantenanleimmaschine

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ATE181866T1 (de) 1995-02-24 1999-07-15 Homag Maschinenbau Ag Einrichtung zur durchführung von bearbeitungsvorgängen an plattenförmigen werkstücken
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DE102005018885B3 (de) 2005-04-22 2007-01-04 Homag Holzbearbeitungssysteme Ag Bearbeitungszentrum
ITMO20050319A1 (it) * 2005-11-29 2007-05-30 Scm Group Spa Apparato distributore di colla

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DE10234618A1 (de) * 2001-07-27 2003-02-13 Biesse Spa Baueinheit zum Aufbringen eines Randstreifens auf Tafeln aus Holz oder Ähnlichem

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Publication number Publication date
EP2251166A1 (fr) 2010-11-17
ES2486266T3 (es) 2014-08-18
DE202009006794U1 (de) 2009-09-03

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