EP2251166A1 - Gluing body - Google Patents

Gluing body Download PDF

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Publication number
EP2251166A1
EP2251166A1 EP10162657A EP10162657A EP2251166A1 EP 2251166 A1 EP2251166 A1 EP 2251166A1 EP 10162657 A EP10162657 A EP 10162657A EP 10162657 A EP10162657 A EP 10162657A EP 2251166 A1 EP2251166 A1 EP 2251166A1
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EP
European Patent Office
Prior art keywords
glue
gluing unit
unit according
gluing
edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10162657A
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German (de)
French (fr)
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EP2251166B1 (en
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/en
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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 glue is applied by means of a slot nozzle on the narrow surface of the workpiece.
  • this slot nozzle must be geometrically clearly moved around the workpiece contour.
  • 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.
  • 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 furthermore 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 machining direction of the workpieces behind the glue application roller and serves to press the edge material to be applied to 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 together with the edge feed about said axis.
  • 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 working 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 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 conventional manner 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 incidence 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)

Abstract

The device has housing (13) for supporting a glue application roller (15) for applying glue (18) on narrow surface of a work piece (W), where the device is coupled with a drive that moves the roller in rotation. The roller is provided in center of the device so that longitudinal axis (Ll) of the roller lies in an extension of a drive axis of the drive. An edge supply channel is supported in the housing for supplying edge material to the narrow surface of the work piece and is deviated around axis that coincides with the longitudinal axis.

Description

Die vorliegende Erfindung betrifft ein Anleimaggregat zur Verwendung in einer Vorrichtung zum Bearbeiten von plattenförmigen Werkstücken, insbesondere aus Holz bzw. Holzwerkstoffen, gemäß dem Oberbegriff des Anspruchs 1.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.

Das Anleimaggregat dient zum Anleimen eines Kantenmaterials an eine Schmalfläche des Werkstücks. Es weist ein Gehäuse auf, an dem eine Leimauftragswalze zum Auftragen von Leim auf die Schmalfläche des Werkstücks gelagert ist. Das Anleimaggregat ist außerdem mit einem Antrieb koppelbar, mittels dessen die Leimauftragswalze in Rotation versetzt werden kann.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.

Stand der TechnikState of the art

Vorrichtungen der eingangs genannten Art sind beispielsweise aus der EP 0 728 561 bekannt. Hier ist das Anleimaggregat aus zwei Grundelementen, nämlich einer Versorgungseinheit und einer Anleimeinheit, zusammengesetzt. Die Anleimeinheit kann mit einer Spindeleinheit eines Bearbeitungszentrums gekoppelt werden. Bei an die Spindeleinheit angekoppelter Anleimeinheit wird das anzuleimende Kantenmaterial in den Bereich einer Leimauftragswalze geführt und mit dieser mit Leim aus einem Leimbehälter einseitig beschichtet. Anschließend wird das beschichtete Kantenmaterial an die Kante des Werkstücks angepreest.Devices of the type mentioned are, for example, from the EP 0 728 561 known. Here 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. When coupled to the spindle unit gluing the anzuleimende 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.

Eine alternative Lösung ist aus der EP 1 714 756 A1 ("Easy Edge") bekannt. Anders als gemäß der erstgenannten Lösung wird hier ein Schmelzkleber nicht auf das Kantenmaterial, sondern direkt auf die Schmalfläche des Werkstücks aufgebracht (Direktleimauftrag). Der Direktleimauftrag hat den Vorteil, dass aufgrund der offenporigen Struktur des Werkstückmaterials eine bessere Haftung erreicht werden kann.An alternative solution is from the EP 1 714 756 A1 ("Easy Edge") known. Unlike the former solution, a hot melt adhesive is not applied to the edge material but directly to the narrow surface of the workpiece (direct glue application). The direct glue order has the advantage that due to the open-pore structure of the workpiece material better adhesion can be achieved.

Der Leim wird mittels einer Schlitzdüse auf die Schmalfläche des Werkstücks aufgetragen. Um einen gleichmäßigen Leimauftrag zu gewährleisten, muss diese Schlitzdüse geometrisch eindeutig um die Werkstückkontur bewegt werden. Die Schlitzdüse muss dabei immer tangential zur Werkstückschmalfläche stehen. Das Nachführen ist bei flexiblen Werkstoffkonturen schwierig. Dadurch sind die minimal zu bearbeitenden Radien und Geometrien beschränkt.The glue is applied by means of a slot nozzle on the narrow surface of the workpiece. In order to ensure an even application of glue, this slot nozzle must be geometrically clearly moved around the workpiece contour. 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.

Schließlich offenbart DE 102 34 618 A1 (Biesse ) ein Anleimaggregat gemäß dem Oberbegriff des Anspruchs 1. Das Anleimaggregat ist hier fester Bestandteil einer Maschine zur Bearbeitung von Tafeln aus Holz oder ähnlichem. Diese Maschine umfasst eine fahrbare Brücke, die eine Baugruppe trägt, die dazu dient, einen Randstreifen auf die Schmalfläche der Werkstücke aufzubringen. Die Baugruppe umfasst eine Beschickungseinheit, die den Randstreifen gegen die Kontur fortbewegt. Eine Andrückwalze ist Teil der Beschickungseinheit. Die besagte Baugruppe umfasst außerdem das Anleimaggregat mit einer Applikatorwalze zum Aufbringen des Leims auf den Umfang des Werkstücks. Diese Applikatorwalze ist in Vorschubrichtung der Gruppe vor der Andrückwalze vorgesehen und wir mittels eines eigenen Motors angetrieben, dessen Abtriebswelle parallel zur Achse der Applikatorwalze verläuft. Es ist ein weiterer Antrieb vorgesehen, um die Winkelposition der gesamten Baugruppe um eine Achse zu steuern, die parallel zu den Längsachsen der Andrückwalze und der Applikatorwalze verläuft.Finally revealed DE 102 34 618 A1 (Biesse ) a gluing unit according to the preamble of claim 1. 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.

Darstellung der ErfindungPresentation of the invention

Aufgabe der vorliegenden Erfindung ist es, ein Anleimaggregat derart weiterzubilden, dass Anleimvorgänge flexibler realisiert werden können und auch kleinere Radien und kompliziertere Geometrien mittels des Anleimaggregats bearbeitet werden können.Object of the present invention is to develop a gluing unit such that Anleimvorgänge can be realized more flexible and smaller radii and more complicated geometries can be edited by means of the glueing unit.

Diese Aufgabe wird erfindungsgemäß bei einem Anleimaggregat der eingangs genannten Art dadurch gelöst, dass die Leimauftragswalze zentral im Anleimaggregat vorgesehen ist, so dass ihre Längsachse in der Verlängerung einer Abtriebsachse des Antriebs liegt.This object is achieved in a gluing unit of the type mentioned fact that the glue applicator roller is provided centrally in the glueing unit, so that its longitudinal axis is in the extension of an output shaft of the drive.

Die Leimauftragswalze kann somit direkt mittels des Antriebs in Rotation versetzt werden. Durch die zentrale Anordnung der Leimauftragswalze im Anleimaggregat sind die mit dem erfindungsgemäßen Anleimaggregat durchzuführenden Bearbeitungsprozesse außerdem CNC-technisch eindeutig programmierbar. In anderen Worten ist die Leimauftragswalze fest in das Verleimaggregat integriert und kann dadurch CNCkonturgetreu um das Werkstück gefahren werden.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 furthermore 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.

Der Leimauftrag erfolgt dabei direkt auf die Schmalfläche des Werkstücks. Der Direktleimauftrag hat den Vorteil, dass aufgrund der offenporigen Struktur des Werkstückmaterials eine bessere Haftung erreicht werden kann.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.

Bevorzugte optionale Merkmale sind in den abhängigen Ansprüchen beschrieben.Preferred optional features are described in the dependent claims.

Das Anleimaggregat weist vorzugsweise außerdem eine Kantenzuführung zum Zuführen des anzuleimenden Kantenmaterials an die Schmalfläche des Werkstücks auf, die ebenfalls an dem Gehäuse gelagert ist. Die erfindungsgemäße zentrale Anordnung der Leimauftragswalze macht es dann möglich, dass die Kantenzuführung bezüglich des Gehäuses um eine Achse herum verschwenkbar ist, um den Einlaufwinkel des Kantenmaterials an die Schmalfläche des Werkstücks zu verändern.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.

Die Kantenführung kann somit um eine separate Achse, eine sogenannte C-Achse, bezüglich des Gehäuses des Anleimaggregats und um die Leimauftragswalze herum verschwenkt werden. Dadurch kann der Einlaufwinkel des Kantenmaterials stets geeignet an die Kontur des Werkstücks angepasst werden, indem für flachere und steilere Konturen stets der passende Einlaufwinkel gewählt wird. So wird auch die Bearbeitung kleinerer Radien möglich. Der Einlaufwinkel des Kantenmaterials wird dabei unabhängig von dem Anstellwinkel der Leimauftragswalze gesteuert.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. As a result, 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.

Die verstellbare Kantenzuführung kann beispielsweise in Form einer Zuführbahn vorgesehen sein.The adjustable edge feed can be provided for example in the form of a feed path.

Die Achse, um die herum die Kantenzuführung verschwenkbar ist, fällt geeignet mit der Längsachse der Leimauftragswalze zusammen. Die Kantenzuführung ist somit um die zentrale Längsachse der Leimauftragswalze herum verschwenkbar angeordnet.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.

In an sich bekannter Art und Weise kann das Anleimaggregat außerdem eine Anpressrolle aufweisen, die in Bearbeitungsrichtung der Werkstücke hinter der Leimauftragswalze vorgesehen ist und dazu dient, das anzuleimende Kantenmaterial an die mit Leim beschichtete Werkstückschmalfläche anzudrücken. In diesem Fall verläuft die Längsachse der Anpressrolle vorzugsweise ebenfalls parallel zu der besagten Achse, um die herum die Kantenzuführung verschwenkbar ist, wobei es sich wie gesagt bevorzugt um die Längsachse der Leimauftragswalze handelt.In a manner known per se, the gluing unit can also have a pressure roller which is provided in the machining direction of the workpieces behind the glue application roller and serves to press the edge material to be applied to the glue-coated workpiece surface. In this case, 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.

Die Anpressrolle ist dann vorzugsweise unabhängig von der Kantenzuführung bezüglich des Gehäuses ebenfalls um eineThe pressure roller is then preferably independent of the edge feed with respect to the housing also to one

Achse verschwenkbar, die mit der Längsachse der Leimauftragswalze zusammenfallen kann.Axis pivoted, which may coincide with the longitudinal axis of the glue applicator roll.

Ein Leimbehälter kann zur Bevorratung des aufzubringenden Leims vorhanden sein. Wenn die Leimauftragswalze an ihrem einen Ende in dem Gehäuse gelagert ist, kann sich das andere, freie Ende der Leimauftragswalze dann in dem Leimbehälter befinden. Vorzugsweise ist dann eine Führungseinrichtung vorgesehen, um den Leim durch Rotation der Leimauftragswalze aus dem Leimbehälter heraus in Richtung des ersten Endes der Leimauftragswalze zu befördern. Durch Rotation der Leimauftragswalze steigt der Leim an der Führungseinrichtung hoch bis in den Bereich, in dem der Leim von der Leimauftragswalze auf die Werkstückschmalfläche übertragen wird.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.

Darüber hinaus können Mittel zur Erwärmung des Leims auf seine Betriebstemperatur vorgesehen sein.In addition, means may be provided for heating the glue to its operating temperature.

In der einfachsten Ausführung arbeitet das erfindungsgemäße Anleimaggregat ohne eigenen Kantentransport. In einer bevorzugten Weiterbildung ist aber eine Einrichtung zum Transportieren des Kantenmaterials und/oder eine Einrichtung zum Ablängen des Kantenmaterials vorgesehen, welche zusammen mit der Kantenzuführung um die besagte Achse verschwenkbar sind.In the simplest embodiment, the gluing unit according to the invention operates without own edge transport. In a preferred embodiment, however, a device for transporting the edge material and / or a device for cutting the edge material is provided, which are pivotable together with the edge feed about said axis.

Das erfindungsgemäße Anleimaggregat kann als Wechselaggregat oder fest aufgebautes Aggregat zum Einsatz kommen.The gluing unit according to the invention can be used as a change unit or a fixed unit.

Im Falle der Verwendung als fest aufgebautes Aggregat ist das Anleimaggregat fest mit dem Antrieb gekoppelt. Dabei wird der Antrieb als Antriebsmotor realisiert sein. Die Längsachse der zentral angeordneten Leimauftragswalze liegt dann in der Verlängerung der Abtriebsachse dieses Antriebsmotors.In the case of use as a fixed aggregate, 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.

Im Falle der Verwendung als Wechselaggregat kann das Anleimaggregat insbesondere zur Verwendung in einem Bearbeitungszentrum zur Bearbeitung von plattenförmigen Werkstücken ausgestaltet sein, die insbesondere aus Holz bzw. Holzwerkstoffen bestehen. Das Bearbeitungszentrum weist dabei eine Spindeleinheit zur Aufnahme von Bearbeitungswerkzeugen und Bearbeitungsaggregaten auf. Das Anleimaggregat ist so ausgestaltet, dass es aus einer Bevorratung in die Spindeleinheit einwechselbar und über eine Schnittstelle an die Spindeleinheit ankoppelbar ist. Dabei ist das Anleimaggregat so ausgestaltet, dass die Längsachse der Leimauftragswalze im eingewechselten Zustand in der Verlängerung der Längsachse einer in der Spindeleinheit des Bearbeitungszentrums gelagerten Arbeitsspindel liegt.In the case of use as a change unit, 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. In this case, 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.

Die Leimauftragswalze wird somit direkt über die Spindeleinheit in Rotation versetzt, ohne dass dazu ein separater Antrieb vorgesehen wäre.The glue application roller is thus set directly in rotation via the spindle unit, without the need for a separate drive would be provided.

Die Bevorratung kann dabei jegliche bekannte Merkzeugbevorratung sein (z.B. Teller- oder Kettenwechsler) oder auch eine separate Vorrichtung, die entsprechend in der, an der oder um die Maschine herum aufgebaut ist.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.

Das Anleimaggregat ist dabei vorzugsweise vollständig in die Spindeleinheit einwechselbar.The gluing unit is preferably completely replaceable in the spindle unit.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Es zeigt

Figur 1
stark schematisiert in einer Draufsicht ein komplettes Bearbeitungszentrum zum Bearbeiten von plattenförmigen Werkstücken;
Figur 2
den grundsätzlichen Aufbau eines erfindungsgemäßen Anleimaggregats als Seitenansicht im Schnitt;
Figur 3
eine Draufsicht auf das Anleimaggregat gemäß Fig. 1;
Figur 4
eine Draufsicht des Leimbehälters des erfindungsgemäßen Anleimaggregats;
Figur 5
eine detailliertere Draufsicht auf das Anleimaggregat gemäß Fig. 1;
Figur 6
drei Möglichkeiten zur thermischen Aufbereitung des Leims;
Figur 7
eine weitere Ansicht des erfindungsgemäßen Anleimaggregats aus Fig. 2 und 3 ohne zusätzlichen Kantentransport; und
Figur 8
eine Weiterbildung des erfindungsgemäßen Anleimaggregats mit zusätzlichem Kantentransport.
It shows
FIG. 1
highly schematic in a plan view of a complete machining center for machining plate-shaped workpieces;
FIG. 2
the basic structure of a gluing unit according to the invention as a side view in section;
FIG. 3
a plan view of the gluing unit according to Fig. 1 ;
FIG. 4
a plan view of the glue container of the gluing unit according to the invention;
FIG. 5
a more detailed plan view of the gluing unit according to Fig. 1 ;
FIG. 6
three options for thermal processing of the glue;
FIG. 7
another view of the gluing unit according to the invention FIGS. 2 and 3 without additional edge transport; and
FIG. 8
a development of the gluing unit according to the invention with additional edge transport.

Ausführliche Erläuterung von bevorzugten AusführungsformenDetailed explanation of preferred embodiments

Im Folgenden sind zur weiteren Erläuterung und zum besseren Verständnis der Erfindung Ausführungsbeispiele unter Bezugnahme auf die beigefügten Zeichnungen näher beschrieben.In the following, for further explanation and for better understanding of the invention, embodiments are described in more detail with reference to the accompanying drawings.

Zunächst sei erläutert, dass das erfindungsgemäße Anleimaggregat insbesondere als Wechselaggregat in einem CNC-Bearbeitungszentrum zur Bearbeitung von plattenförmigen Werkstücken zum Einsatz kommen kann.It should first be explained that 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.

Ein solches Bearbeitungszentrum ist schematisch in Figur 1 dargestellt. In an sich bekannter Art und Weise umfasst es ein Maschinengestell 1, das mit zwei in X-Richtung verlaufenden Geradführungen 2 ausgestattet ist. Auf den Geradführungen 2 ist ein Ständer 6 in X-Richtung verfahrbar gelagert, der auf seiner Oberseite einen Ausleger 3 trägt, welcher sich in Y-Richtung erstreckt.Such a machining center is schematically in FIG. 1 shown. In a manner known per se, it comprises a machine frame 1 which is equipped with two straight guides 2 extending in the X direction. On the linear guides 2, 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.

Der Ausleger 3 besitzt an seiner in Figur 1 rechten Seite eine in Y-Richtung verlaufende Geradführung 4, an der eine Spindeleinheit 5 in Y-Richtung verfahrbar gelagert ist.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.

Aufgrund der beschriebenen Anordnung kann die Spindeleinheit 5 in X- und in Y-Richtung über einen mit dem Maschinengestell 1 verbundenen Bearbeitungstisch 7 bewegt werden, der die zu bearbeitenden plattenförmigen Werkstücke W trägt. Die Anordnung ist dabei derart getroffen, dass die Spindeleinheit 5 jeden Punkt des Bearbeitungstisches 7 erreichen und auf diese Weise ein oder mehrere, auf dem Bearbeitungstisch 7 angeordnete Werkstücke W bearbeiten kann. Die Spindeleinheit 5 und/oder die in dieser gelagerte Arbeitsspindel (nicht dargestellt) können hierzu über entsprechende Führungen in an sich bekannter Weise zusätzlich in Z-Richtung, d.h. in Bezug auf die Ebene der Figur 1 auf und ab bewegt werden.Due to the described arrangement, 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 working 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 FIG. 1 be moved up and down.

Das Werkstück W ist auf dem Bearbeitungstisch 7 mit herkömmlichen Spannmitteln, beispielsweise Saugeinrichtungen (nicht dargestellt), festgespannt.The workpiece W is clamped on the processing table 7 with conventional clamping means, for example suction devices (not shown).

Auf der dem Bearbeitungstisch entgegengesetzten Seite ist an dem Ausleger 3 oder dem Ständer 6 eine Magazinanordnung 9 befestigt. Diese kann in bekannter Weise ausgestaltet sein und trägt die für die Durchführung der Bearbeitungsvorgänge an dem Werkstück W erforderlichen Bearbeitungswerkzeuge und Bearbeitungsaggregate. In Figur 1 ist die Magazinanordnung 9 in Form eines Tellermagazins ausgestaltet.On the opposite side of the machining table, 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. In FIG. 1 the magazine assembly 9 is designed in the form of a disk magazine.

Die Magazinanordnung 9 befindet sich im Einflussbereich der Spindeleinheit 5, so dass diese entsprechend den Vorgaben das jeweilige Bearbeitungswerkzeug bzw. Bearbeitungsaggregat der Magazinanordnung 9 (beispielsweise im sogenannten pick-up-Verfahren) entnehmen und nach erfolgter Bearbeitung wieder in diesem absetzen kann.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.

In der Magazinanordnung 9 befinden sich die Bearbeitungswerkzeuge bzw. Bearbeitungsaggregate in einer Ruhestellung. Die Arbeitsspindel der Spindeleinheit 5 ist mit einer sogenannten Schnittstelle (nicht dargestellt) ausgestattet, über die die Bearbeitungswerkzeuge und Bearbeitungsaggregate erfasst und beim Bearbeitungsvorgang gehalten und mit allen für ihre Funktion notwendigen Energie- und Steuerungsmitteln versorgt werden. Hierzu zählt in erster Linie die Versorgung mit dem für den jeweiligen Arbeitsprozess notwendigen Drehmoment sowie die Versorgung mit pneumatischer, hydraulischer oder elektrischer Energie einschließlich der Versorgung mit Daten für die Steuerung und Regelung.In the magazine assembly 9, 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.

Die Übernahme eines Bearbeitungswerkzeuges oder Bearbeitungsaggregates in die Spindeleinheit 5 aus der Ruhestation in der Magazinanordnung 9 wird in der Fachwelt allgemein als "Einwechseln" bezeichnet.The adoption of a machining tool or processing unit in the spindle unit 5 from the rest station in the magazine assembly 9 is generally referred to in the art as "replacement".

Das in Figur 1 dargestellte Bearbeitungszentrum ist von einer Schutzwand 10 umgeben. Im Bereich des rechten Endes des Verfahrweges des Auslegers 3 bzw. der Spindeleinheit 5 ist in der Schutzwand 10 ein Kantenmagazin 11 angeordnet, das mit einer zwischen dem Kantenmagazin 11 und dem Bearbeitungszentrum angeordneten Kantenübergabeeinrichtung 12 zusammenarbeitet.This in FIG. 1 shown machining center is surrounded by 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.

Im folgenden werden nun bevorzugte Ausführungsformen eines erfindungsgemäßen Anleimaggregats beschrieben, das als Ganzes in die Spindeleinheit 5 eingewechselt werden kann. Der besseren Übersichtlichkeit halber werden lediglich die für das Verständnis der Erfindung notwendigen Teile und Funktionen der erfindungsgemäßen Anleimaggregate beschrieben. Die Figuren 2 und 3 zeigen zunächst den grundsätzlichen Aufbau einer ersten bevorzugten Ausführungsform eines erfindungsgemäßen Anleimaggregats.In the following, preferred embodiments of a gluing unit according to the invention will now be described, which can be interchanged as a whole in the spindle unit 5. For the sake of clarity, only the parts and functions of the glueing units according to the invention which are necessary for the understanding of the invention will be described. The FIGS. 2 and 3 first show the basic structure of a first preferred embodiment of a gluing unit according to the invention.

Das Anleimaggregat besitzt ein Gehäuse 13, welches an seiner Oberseite in an sich bekannter Art und Weise mit einer aggregatseitigen Schnittstelle ausgestattet ist, mit der das Anleimaggregat an die Arbeitsspindel der Spindeleinheit 5 des Bearbeitungszentrums angekoppelt werden kann. Die Schnittstelle umfasst in bekannter Weise einen Konus 16 zur Drehmomentübertragung. Die Längsachse LK des Konus 16 liegt im angekoppelten Zustand in der Verlängerung der Längsachse der Arbeitsspindel der Spindeleinheit 5. Die Schnittstelle umfasst außerdem Anschlusskontakte (nicht dargestellt) für die Versorgung mit elektrischer Energie sowie für die Versorgung mit Daten zur Steuerung und Regelung.The gluing unit has a housing 13, which is equipped on its upper side in a conventional manner 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.

Das in den Figuren 2 und 3 dargestellte Anleimaggregat ist zum Beschichten der Schmalfläche des Werkstücks W mit Leim und zum anschließenden Aufbringen eines Kantenmaterials K (im folgenden auch einfach "Kante K") auf die beschichtete Schmalfläche eingerichtet.That in the FIGS. 2 and 3 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.

Der Leimauftrag auf die Schmalfläche des Werkstücks W erfolgt mittels einer Leimauftragswalze 15. Die Leimauftragswalze 15 ist zentral im Anleimaggregat vorgesehen: ihre Längsachse LL liegt in der Verlängerung der Längsachse LK des Konus 16. Im angekoppelten Zustand liegt die Längsachse LL der Leimauftragswalze 15 somit auch in der Verlängerung der Längsachse der Arbeitsspindel der Spindeleinheit 5 des Bearbeitungszentrums.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.

Die Leimauftragswalze 15 wird somit direkt über die Spindeleinheit 5 in Rotation versetzt, ohne dass dazu ein separater Antrieb vorgesehen wäre.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.

Das Anleimaggregat wird mit dem Zentrum der Leimauftragswalze 15 mittels CNC-Technik um die Werkstückkontur bewegt. Durch die zentrale Anordnung der Leimauftragswalze 15 im Anleimaggregat sind die mit dem erfindungsgemäßen Anleimaggregat durchzuführenden Bearbeitungsprozesse CNC-technisch eindeutig programmierbar.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.

Ein Leimbehälter 14, in dem sich flüssiger bzw. zu verflüssigender Leim 18 befindet, ist im unteren Bereich der Leimauftragswalze 15 angeordnet. Wie weiter unten noch genauer beschrieben wird, wird der Leim 18 aus dem Leimbehälter 14 durch Rotation der Leimauftragswalze 15 in den oberen Bereich der Leimauftragswalze 15 befördert und dort auf die Werkstückschmalfläche aufgebracht. Durch Verändern des Abstands zwischen der Werkstückschmalfläche und der Leimauftragswalze 15 kann die Leimauftragsmenge variiert werden.A glue container 14, in which liquid or liquefied glue 18 is located, is arranged in the lower region of the glue application roller 15. As will be described in more detail below, the glue 18 is transported from the glue container 14 by rotation of the glue application roller 15 in the upper region of the glue application roller 15 and applied there to the workpiece surface. By changing the distance between the workpiece narrow surface and the glue application roller 15, the glue application amount can be varied.

Wie sich ebenfalls aus den Figuren 2 und 3 ergibt, wird die Kante K mittels einer Kantenzuführeinrichtung an die Schmalfläche des Werkstücks W gebracht, die in der vorliegenden Ausführungsform als Kantenzuführbahn 24 ausgebildet ist. Die Kante K wird unter einem Kantenzuführwinkel α (s. Figur 3) gegen die Werkstückschmalfläche geführt.As also from the FIGS. 2 and 3 results, 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 Kantenzuführbahn 24. The edge K is under an edge feed angle α (s. FIG. 3 ) guided against the workpiece surface.

In unmittelbarer Nähe der Position, an der die Kante K an das Werkstück W geführt wird, ist eine Anpressrolle 17 vorgesehen, welche die Kante K an die mit Leim beschichtete Schmalfläche des Werkstückes W anpresst. Die Längsachse LA der Anpressrolle 17 verläuft dabei parallel zur Längsachse LL der Leimauftragswalze 15. Ein Haltearm 19 für die Anpressrolle 17 ist am Gehäuse 13 des Anleimaggregats drehbar gelagert. So kann die Anpressrolle 17 an dem Haltearm 19 um die Längsachse LL der Leimauftragswalze 15 herum verschwenken. Je nach Werkstückkontur und Zuführwinkel der Kante K schwenkt die Anpressrolle 17 automatisch nach.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. Thus, the pressure roller 17 can pivot about the longitudinal axis L L of the glue application roller 15 on the support arm 19 around. Depending on the workpiece contour and feed angle of the edge K, the pressure roller 17 pivots automatically.

Durch die Verwendung der Leimauftragswalze 15 ergibt sich eine flexiblere Einsetzbarkeit des Anleimaggregats. Insbesondere braucht, verglichen mit einer Schlitzdüse als Leimauftragselement, kein bestimmter Anstellwinkel des Leimauftragselements bezüglich der Werkstückschmalfläche eingehalten zu werden, da die Leimauftragswalze 15 den Leim um ihren gesamten Umfang herum aufnehmen und auf die Werkstückschmalfläche übertragen kann. Dadurch ergibt sich nun auch die Möglichkeit, erfindungsgemäß den Kantenzuführwinkel α bezüglich der Werkstückschmalfläche zu variieren und stets so zu bestimmen, dass das Kantenband auch bei komplizierteren Werkstückkonturen und kleinen Radien immer optimal an die Werkstückkantenfläche geführt werden kann. Da hierzu die relative Lage der Leimauftragswalze 15 zur Werkstückkantenfläche nicht verändert wird, erfolgt dabei stets ein gleichmäßiger Leimauftrag.By using the glue applicator roller 15 results in a more flexible applicability of the glueing unit. In particular, compared to a slot nozzle as a glue application element, no particular angle of incidence 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. As a result, it is also possible to vary the edge feed angle α with respect to the narrow workpiece surface according to the invention and always to determine that the edge strip can always be optimally guided to the workpiece edge surface even with more complicated workpiece contours and small radii. Since for this purpose the relative position of the glue application roller 15 is not changed to the workpiece edge surface, there is always a uniform glue application.

Die Einstellung des Kantenzuführwinkels C erfolgt durch Verschwenken der Kantenzuführbahn 24 bezüglich des Gehäuses 13 um eine separate Schwenkachse (C-Achse) herum.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).

Figur 4 zeigt eine Draufsicht des Leimbehälters 14 des erfindungsgemäßen Anleimaggregats. Durch die Rotation der Leimauftragswalze 15 in diesem Behälter 14 wird der Leim 18 in einer halboffenen Führungsröhre 20 mit im wesentlichen halbkreisförmigen Querschnitt entlang der Leimauftragswalze 15 aufwärts in deren oberen Bereich gefördert, wo der Leimauftrag auf das Werkstück W stattfindet. FIG. 4 shows a plan view of the glue container 14 of the gluing unit according to the invention. By the rotation of the glue applicator roller 15 in this container 14, 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.

Die Leimmenge auf der Leimauftragswalze 15 kann durch den Abstand der Führungsröhre 20 zur Leimauftragswalze 15 im Leimbehälter 14 bestimmt werden.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.

Statt der Führungsröhre 20 kann auch ein Schieber oder eine feste Wand verwendet werden.Instead of the guide tube 20, a slider or a solid wall can be used.

Figur 5 zeigt eine Draufsicht auf die erste Ausführungsform des erfindungsgemäßen Anleimaggregats, aus der sich weitere Details des Aufbaus des Anleimaggregats ergeben. Man erkennt auch hier die Leimauftragswalze 15, die Führungsröhre 20 für den Leim sowie die Anpressrolle 17 zum Anpressen der Kante K an das hier nicht dargestellte Werkstück. Die Leimauftragswalze ist zentral im Leimauftragsaggregat vorgesehen. Die Kantenzuführbahn 24 ist um die Längsachse der Leimauftragswalze 15 herum verschwenkbar. Unabhängig davon ist auch die Anpressrolle 17 um dieselbe Achse herum verschwenkbar gelagert. 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.

Der verwendete Leim 18 liegt bei Umgebungstemperatur in fester Form vor, im allgemeinen in Form eines Granulats. Zum Verarbeiten muss der Leim 18 daher auf eine Temperatur oberhalb seiner Schmelztemperatur gebracht werden, üblicherweise auf ca. 200 °C. Die thermische Aufbereitung des Leims 18 kann im Bevorratungsplatz des Anleimaggregats, d.h. in der Magazinanordnung 9 stattfinden und/oder wenn das Aggregat angewählt wurde.The glue 18 used is in solid form at ambient temperature, generally in the form of granules. For processing, 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.

Figur 6 zeigt drei Möglichkeiten zur thermischen Aufbereitung des Leims 18. Die Wärme kann direkt, z.B. mit Heizpatronen (21 in Figur 17 a)), erzeugt werden oder indirekt, z.B. über eine separate Heizplatte (22 in Figur 17 b)) oder induktiv (23 in Figur 17 c)). Wird der Leim 18 direkt im Anleimaggregat thermisch aufbereitet, so wird die oben beschriebene Schnittstelle des Anleimaggregats zur Übertragung der dazu notwendigen Energie herangezogen. Die Energie kann dem vorhandenen Netz entnommen oder mittels eines eigenen Generators erzeugt werden. 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 FIG. 17 c)). If 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.

Die Kantenzuführung in das Anleimaggregat kann manuell oder automatisch erfolgen. In der einfachsten Ausführung arbeitet das erfindungsgemäße Anleimaggregat ohne eigenen Kantentransport. Die anzuleimende Kante K wird im Bereich der Anpressrolle 17 positioniert ( Figur 7 ) und entsprechend mit der einsteuernden Anpressrolle 17 ans Werkstück W gepresst, so dass der Rest des Kantenbands K anschließend beim Umfahren der Werkstückkontur automatisch mit herausgezogen wird.The edge feed into the gluing unit can be done manually or automatically. In the simplest embodiment, 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 einsteuernden 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.

Alternativ ist es möglich, einen zusätzlichen Kantentransport vorzusehen. Eine entsprechend modifizierte Ausführungsform des erfindungsgemäßen Anleimaggregats ist in Figur 8 dargestellt. Diese Ausführungsform unterscheidet sich von der bisher beschriebenen darin, dass eine Kantentransporteinrichtung 26 sowie eine Ablängeinrichtung 25 vorgesehen sind. Darüber hinaus ist ein Sensor 27 zur Erfassung des Anfangs A der bereits auf das Werkstück W aufgebrachten Kante K vorgesehen. Dadurch ergibt sich die Möglichkeit, die Werkstückschmalfläche vollständig (360°) zu umfahren und die Kante K am Ende des Anleimvorgangs entsprechend abzulängen.Alternatively, it is possible to provide an additional edge transport. 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.

Sowohl die Transporteinrichtung 26 als auch die Ablängeinrichtung 25 sind dabei zusammen mit der Kantenzuführung 24 um die besagte Achse C verschwenkbar.Both the transport device 26 and the cutting device 25 are pivotable together with the edge feed 24 about said axis C.

Aus der oben erfolgten Beschreibung ergibt sich, dass das erfindungsgemäße Anleimaggregat als einfaches, kostengünstiges Anleimaggregat zur Vier-Seiten-Verieimung oder auch als aufwändigeres Anleimaggregat zur 360 Grad-Verleimung von Werkstücken ausgestaltet werden kann.It follows from the above description that 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.

Des weiteren kann das erfindungsgemäße Anleimaggregat in verschiedenen Typen von Bearbeitungsmaschinen wie z.B. Auslegermaschinen und Portales als Einzelaggregat oder in Kombination mit anderen Aggregaten zum Einsatz kommen.Furthermore, 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.

Claims (15)

Anleimaggregat zum Anleimen eines Kantenmaterials (K) an eine Schmalfläche eines plattenförmigen Werkstücks (W), das insbesondere aus Holz bzw. Holzwerkstoffen besteht,
wobei das Anleimaggregat ein Gehäuse (13) aufweist, an dem eine Leimauftragswalze (15) zum Auftragen von Leim (18) auf die Schmalfläche des Werkstücks (W) gelagert ist, und
wobei das Anleimaggregat außerdem mit einem Antrieb koppelbar ist, mittels dessen die Leimauftragswalze (15) in Rotation versetzt werden kann,
dadurch gekennzeichnet, dass
die Leimauftragswalze (15) zentral im Anleimaggregat vorgesehen ist, so dass ihre Längsachse (LL) in der Verlängerung einer Abtriebsachse des Antriebs liegt.Glueing unit for gluing an edge material (K) on a narrow surface of a plate-shaped workpiece (W), which consists in particular of wood or wood-based materials,
wherein the gluing unit has a housing (13) on which a glue application roller (15) for applying glue (18) is mounted on the narrow surface of the workpiece (W), and
wherein the gluing unit can also be coupled to a drive by means of which the glue application roller (15) can be set in rotation,
characterized in that
the glue applicator roller (15) is provided centrally in the gluing unit, so that its longitudinal axis (L L ) lies in the extension of an output shaft of the drive. Anleimaggregat gemäß Anspruch 1, bei welchem außerdem eine Kantenzuführung (24) zum Zuführen des anzuleimenden Kantenmaterials (K) an die Schmalfläche des Werkstücks (W) an dem Gehäuse (13) gelagert ist und die Kantenzuführung (24) bezüglich des Gehäuses (13) um eine Achse (C) herum verschwenkbar ist, um den Einlaufwinkel (α) des Kantenmaterials (K) an die Schmalfläche des Werkstücks (W) zu verändern.The gluing unit according to claim 1, further comprising an edge feed (24) for feeding the edge material (K) to be glued to the narrow surface of the workpiece (W) on the housing (13), and the edge feed (24) with respect to the housing (13) an axis (C) is pivotable about to change the lead angle (α) of the edge material (K) to the narrow surface of the workpiece (W). Anleimaggregat gemäß Anspruch 2, bei welchem die Kantenzuführung (24) in Form einer Zuführbahn vorgesehen ist.Gluing unit according to claim 2, wherein the edge feed (24) is provided in the form of a feed track. Anleimaggregat gemäß Anspruch 2 oder 3, bei welchem die Achse (C) mit der Längsachse (LL) der Leimauftragswalze (15) zusammenfällt.A gluing unit according to claim 2 or 3, wherein the axis (C) coincides with the longitudinal axis (L L ) of the glue application roller (15). Anleimaggregat gemäß einem der vorangehenden Ansprüche, weiter mit einer Anpressrolle (17), die in Bearbeitungsrichtung der Werkstücke hinter der Leimauftragswalze (15) vorgesehen ist.Glueing unit according to one of the preceding claims, further comprising a pressure roller (17), which is provided in the processing direction of the workpieces behind the glue application roller (15). Anleimaggregat gemäß Anspruch 5, bei welchem die Anpressrolle (17) bezüglich des Gehäuses (13) um eine Achse herum verschwenkbar gelagert ist, die vorzugsweise mit der Längsachse (LL) der Leimauftragswalze zusammenfällt.The gluing unit according to claim 5, wherein the pressure roller (17) is pivotably mounted relative to the housing (13) about an axis which preferably coincides with the longitudinal axis (L L ) of the glue application roller. Anleimaggregat gemäß Anspruch 5 oder 6, bei welchem die Längsachse (LA) der Anpressrolle (17) ebenfalls parallel zu der besagten Achse (C) verläuft.A gluing unit according to claim 5 or 6, wherein the longitudinal axis (L A ) of the pressure roller (17) is also parallel to said axis (C). Anleimaggregat gemäß einem der vorangehenden Ansprüche, weiter mit einem Leimbehälter (14) zur Bevorratung des aufzubringenden Leims (18), wobei die Leimauftragswalze (15) an ihrem einen Ende in dem Gehäuse (13) gelagert ist und sich das andere, freie Ende der Leimauftragswalze (15) in dem Leimbehälter (14) befindet.Glueing unit according to one of the preceding claims, further comprising a glue container (14) for storing the applied glue (18), wherein the glue application roller (15) is mounted at its one end in the housing (13) and the other, free end of the glue applicator roll (15) is located in the glue container (14). Anleimaggregat gemäß Anspruch 8, bei welchem eine Führungseinrichtung (20) vorgesehen ist, um den Leim (18) durch Rotation der Leimauftragswalze (15) aus dem Leimbehälter (14) heraus in Richtung des ersten Endes der Leimauftragswalze (15) in einen Bereich zu befördern, in dem der Leim (18) von der Leimauftragswalze (15) auf die Werkstückschmalfläche übertragen wird.A gluing unit according to claim 8, wherein guide means (20) are provided to convey the glue (18) into an area by rotating the glue applicator roller (15) out of the glue box (14) towards the first end of the glue applicator roller (15) in which the glue (18) is transferred from the glue application roller (15) to the workpiece surface. Anleimaggregat gemäß einem der vorangehenden Ansprüche, weiter mit Mitteln (21, 22, 23) zur Erwärmung des Leims (18) auf seine Betriebstemperatur.A gluing unit according to one of the preceding claims, further comprising means (21, 22, 23) for heating the glue (18) to its operating temperature. Anleimaggregat gemäß einem der vorangehenden Ansprüche, weiter mit einer Einrichtung (26) zum Transportieren des Kantenmaterials (K), welche Transporteinrichtung (26) zusammen mit der Kantenzuführung (24) um die besagte Achse C verschwenkbar ist.A gluing unit according to one of the preceding claims, further comprising means (26) for transporting the edge material (K), which transport means (26) is pivotable about said axis C together with the edge feed (24). Anleimaggregat gemäß einem der vorangehenden Ansprüche, weiter mit einer Einrichtung (25) zum Ablängen des Kantenmaterials (K), welche Ablängeinrichtung (25) zusammen mit der Kantenzuführung (24) um die besagte Achse C verschwenkbar ist.Gluing unit according to one of the preceding claims, further comprising means (25) for cutting to length Edge material (K), which cutting device (25) together with the edge feed (24) about said axis C is pivotable. Anleimaggregat gemäß einem der vorangehenden Ansprüche, wobei das Anleimaggregat fest mit dem Antrieb gekoppelt ist.Gluing unit according to one of the preceding claims, wherein the gluing unit is fixedly coupled to the drive. Anleimaggregat gemäß einem der vorangehenden Ansprüche zur Verwendung in einem Bearbeitungszentrum zur Bearbeitung von plattenförmigen Werkstücken, die insbesondere aus Holz bzw. Holzwerkstoffen bestehen,
wobei das Bearbeitungszentrum eine Spindeleinheit (5) zur Aufnahme von Bearbeitungswerkzeugen und Bearbeitungsaggregaten aufweist und das Anleimaggregat so ausgestaltet ist, dass es aus einer Bevorratung (9) in die Spindeleinheit (5) einwechselbar und über eine Schnittstelle (16) an die Spindeleinheit (5) ankoppelbar ist, und
wobei das Anleimaggregat so ausgestaltet ist, dass die Längsachse (LL) der Leimauftragswalze (15) im eingewechselten Zustand in der Verlängerung der Längsachse einer in der Spindeleinheit (5) gelagerten Arbeitsspindel liegt.Applicator unit according to one of the preceding claims for use in a machining center for machining plate-shaped workpieces, which in particular consist of wood or wood-based materials,
wherein the machining center has a spindle unit (5) for accommodating machining tools and processing units, and the gluing unit is designed such that it can be exchanged from a supply (9) into the spindle unit (5) and via an interface (16) to the spindle unit (5). can be coupled, and
wherein the gluing unit is configured such that the longitudinal axis (L L ) of the glue application roller (15) in the replaced state lies in the extension of the longitudinal axis of a work spindle mounted in the spindle unit (5). Anleimaggregat gemäß Anspruch 14, bei welchem das Anleimaggregat vollständig in die Spindeleinheit (5) einwechselbar ist.Gluing unit according to claim 14, wherein the gluing unit is completely exchangeable in the spindle unit (5).
EP10162657.0A 2009-05-12 2010-05-12 Gluing body Active EP2251166B1 (en)

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