EP2808138A1 - Capping device assembly and method for capping - Google Patents

Capping device assembly and method for capping Download PDF

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Publication number
EP2808138A1
EP2808138A1 EP14001546.2A EP14001546A EP2808138A1 EP 2808138 A1 EP2808138 A1 EP 2808138A1 EP 14001546 A EP14001546 A EP 14001546A EP 2808138 A1 EP2808138 A1 EP 2808138A1
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EP
European Patent Office
Prior art keywords
movement
workpiece
capping
trimming
trimming unit
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Granted
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EP14001546.2A
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German (de)
French (fr)
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EP2808138B1 (en
Inventor
Harald Gosebruch
Jürgen Kleine-Beek
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IMA Klessmann Holzbearbeitungssysteme GmbH
IMA Klessmann GmbH
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IMA Klessmann Holzbearbeitungssysteme GmbH
IMA Klessmann GmbH
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Priority to PL14001546T priority Critical patent/PL2808138T3/en
Publication of EP2808138A1 publication Critical patent/EP2808138A1/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
    • B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists

Definitions

  • the invention relates to a Kappvoriquessan extract according to the preamble of claim 1 and a method of capping according to the preamble of claim 7.
  • Kappvorairessan extract of the type mentioned serve an edge band projection on narrow sides of plate-shaped workpieces, these are in the context of the invention, in particular furniture panels made of wood or wood substitutes, separate to make the edge band flush with the narrow side.
  • Vorkappvoriquesen are known as from DE 101 24 081 C1 , which provide rough cuts in the edge band. After precutting a fine machining is required; this must be done with other aggregates to achieve the desired flush.
  • Vorkappvorraumen a trimming unit is used, which is mounted eccentrically. So it can be delivered to the workpiece and deducted after caps of this again without the past the trimming unit workpiece is obstructed.
  • the trimming unit is synchronized in its movement with the movement of the workpiece. The synchronization takes place as a function of the speed of movement of the workpieces transporting transport chain. This approach is inaccurate because the speed of the transport chain varies greatly due to inherent characteristics of the chain and is therefore extremely tolerant. Such a Kappvoriquessanssen is therefore suitable at best for a roughing. You need additional finishing units.
  • EP 2 311 612 A2 a device for machining workpieces which has a plurality of saw blades on a rocker. These are delivered to the workpiece to introduce a plurality of cuts therein to form a comb structure. For this purpose, the movement of the saws and those of the workpiece must be synchronized.
  • such a device is not suitable for the above-described Kappvorgang, since when caps are usually required other angles than 90 ° to the feed direction.
  • the object of the invention is to provide a Kappvoriquessan extract and a Kapprose with which both a Vorkappen and a fine machining with only one unit are possible.
  • the movement or the position of a probe element is evaluated for the control of the trimming unit.
  • This movement is detected by the control unit in the form of movement information, for example via an incremental encoder, and the feed movement of the trimming unit is controlled as a function of the movement or position of the feeler element.
  • the controller detects and evaluates not only the movement information, but also a predetermined cutting path of the edge band to be cut, in particular, if the chop saw as often usual, no cut 90 ° to the feed direction of the workpiece, but an angle smaller or larger than 90 °. In this way, the workpiece can be detected accurately and the edge band can be cut exactly and with minimal tolerance.
  • the usual tilting of the capping tool during caps resulting in clean Kapp réellen.
  • the eccentric on two parallel rockers with pivot bearings which may be coupled via a drive belt and / or a gearbox with the rotary drive.
  • This rocker arrangement allows a defined movement of the trimming unit, which preferably has at least one saw, during the delivery or the removal from the engagement area with the workpiece on a defined path.
  • control device controls the rotary drive. This is then done as described above in dependence on the speed of the probe element, which is held on the workpiece in plant and therefore always provides a measure of the speed of the workpiece.
  • the trimming unit performs a superimposed movement with a component in the feed direction and a component in the direction of movement during the feed movement. It can be provided in particular that the trimming unit is controlled so that the movement speed component of the trimming unit in the direction of movement of the workpiece and the movement speed component in the feed direction (Y) at least during capping produce a linear cutting motion.
  • the trimming unit is controlled in such a way that its movement speed component increases in the direction of movement after capping - in particular if the capping takes place in the region of the narrow side of the workpiece leading in the direction of advance of the workpiece - and / or smaller - in particular if Caps in the region of the trailing in the feed direction of the workpiece narrow side of the workpiece is - is as the feed rate of the probe element and / or workpiece.
  • the trimming unit is brought to a speed - in particular accelerated - which corresponds to the movement speed of the workpiece, which is detected by the movement of the probe element by the control.
  • the control synchronizes or accounts for the eccentric movement of the trimming unit with the feed of the workpiece, in particular with the additional inclusion of the predetermined cutting path on the edge band (i.e., the predetermined profile of the trimming point), so that a co-cutting of the trimming cut is achieved during the trimming operation.
  • the trimming unit is removed by accelerating the rotary drive from the path of movement of the workpiece.
  • the trimming unit is pivotable about a pivot axis perpendicular to the movement direction X and perpendicular to the feed direction.
  • two saws or processing tools one for the leading end capping and one for the trailing end capping, can be provided and delivered to the workpiece by pivoting the trimming unit.
  • 2 denotes a transport device with which the workpieces 1 are guided past the cutting device 4 along a movement direction X.
  • the capping device 4 is arranged on a bearing 3 and has a rotary drive 43, which is coupled to an eccentric device (41, 42).
  • the coupling is preferably designed such that a toothed belt 44 is guided around the shaft of the rotary drive 43 and guide sections 41a, 42a of the eccentric device 41, 42.
  • the eccentric 41, 42 may be otherwise in operative connection with the rotary drive, such as a gear or it may be provided on the shaft of the rotary drive 43, an eccentric.
  • a trimming unit with at least one drive 4a and at least one tool 4b, in particular a chop saw, arranged.
  • the trimming unit 4a, 4b or the tool can be mounted pivotably relative to the eccentric device 41, 42 in order to set the angle of attack of the trimming tool relative to the workpiece 1.
  • the trimming unit 4a, 4b delivered in the feed direction Y the workpiece. This means that the trimming unit 4a, 4b executes at least one movement component in the feed direction Y when delivering. Due to the eccentric arrangement, a movement component in the direction of the movement direction X is also executed at the same time.
  • the eccentric 41, 42 by two parallel arranged rockers 41 and 42 realized, which are pivotally hinged to the bearing 3 and coupled to the rotary drive 43 via a coupling element 44 in the region of their respective guide portions 41a, 42a. If the rotary drive 43 is actuated, then both rockers 41, 42 oscillate parallel to one another and move the trimming unit 4a, 4b connected to at least one rocker 42 on a fixed path, in particular a circular path, thus leading to combined movement with components in X as well as in FIG Y direction off.
  • the device according to the invention also has a control (not shown) which controls the rotary drive 43 in response to movement information.
  • This movement information is obtained from a sensing element 5 belonging to the arrangement according to the invention.
  • This probe element is controlled so that it is always in contact with a workpiece 1 to be machined, either on the trailing in the direction of movement X and / or the leading in the direction of movement X narrow side of the workpiece.
  • the current position of the probe element 5 thus always corresponds to the position of the front or the trailing narrow side of the workpiece 1 and can thus be used for positioning and control of the trimming unit 4a, 4b.
  • the movement data of the probe element 5, which can be generated approximately by an incremental encoder or optically, are in the form of motion information passed on to the controller, which knows where the workpiece 1 and thus with the trimming unit 4a, 4b to be approached Kappstelle of the running parallel to the direction of movement X narrow side and protruding edge band is located.
  • the controller now works so that it detects the position of the workpiece 1 as described and synchronized or offset with this position, the movement of the trimming unit 4a, 4b via the control of the rotary drive, so that during capping a synchronization (ie, substantially the same speed ) between the trimming unit and the direction of the trimming cut is achieved and the capping can be carried out with pinpoint accuracy, FIG. 2 ,
  • the eccentric mechanism ensures that the trimming unit 4a, 4b is withdrawn from the workpiece counter to the direction Y, thereby leading the workpiece in the direction X, so that the workpiece 1 transported in the movement direction X. is not obstructed by the trimming unit 4a, 4b, FIG. 3 , Similarly, it can be provided that when the projection of the overhang on the trailing narrow side of the workpiece, the speed (component in the direction of movement X) of the trimming unit after capping is lower than that of the workpiece, so that there are no hindrances here.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Control Of Cutting Processes (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

Die Kappvorrichtungsanordnung zum Kappen des Überstandes eines auf der Schmalseite eines plattenförmigen Werkstücks (1) angebrachten Kantenbandes weist eine Bewegungsvorrichtung (2) zum Bewegen des Werkstücks (1) in einer Bewegungsrichtung (X) sowie eine Kappvorrichtung (4) mit einem Kappaggregat (4a, 4b) auf. Das Kappaggregat (4a, 4b) ist in einer Zustellrichtung (Y) senkrecht zur Bewegungsrichtung (X) dem Werkstück (1) zustellbar ausgebildet, wobei zur Ausführung der Zustellbewegung das Kappaggregat (4a, 4b) an einer über einen Drehantrieb (43) angetriebenen Exzentervorrichtung (41, 42) gelagert ist. Die Kappvorrichtungsanordnung weist weiter eine Steuervorrichtung auf, welche die Zustellung des Kappaggregats (4a, 4b) abhängig von der Bewegung des Werkstücks (1) steuert, wobei die Kappvorrichtungsanordnung ein in Bewegungsrichtung (X) bewegliches Tastelement (5) zur Anlage gegen die in Bewegungsrichtung (X) vorauslaufende und/oder in Bewegungsrichtung (X) hinterherlaufende Kante des Werkstücks (1) aufweist. Die Steuervorrichtung ist so ausgebildet, dass sie die Bewegungsinformationen des Tastelements (5) erhält und in Abhängigkeit von den erhaltenen Bewegungsinformationen die Zustellung des Kappaggregats (4a, 4b) bewirkt.The capping device for capping the projection of an edge band mounted on the narrow side of a plate-shaped workpiece (1) has a moving device (2) for moving the workpiece (1) in a moving direction (X) and a capping device (4) having a cutting unit (4a, 4b) ) on. The trimming unit (4a, 4b) is designed to be deliverable to the workpiece (1) in a feed direction (Y) perpendicular to the direction of movement (X), the trimming unit (4a, 4b) being driven by a rotary drive (43) to execute the feed movement (41, 42) is stored. The Kappvorrichtungsanordnung further comprises a control device which controls the delivery of the Kappaggregats (4a, 4b) depending on the movement of the workpiece (1), wherein the Kappvorrichtungsanordnung a movable in the direction of movement (X) feeler element (5) for abutment against in the direction of movement ( X) leading and / or in the direction of movement (X) running behind edge of the workpiece (1). The control device is designed such that it receives the movement information of the probe element (5) and effects the delivery of the trimming unit (4a, 4b) as a function of the movement information obtained.

Description

Die Erfindung betrifft eine Kappvorrichtungsanordnung nach dem Oberbegriff des Anspruchs 1 und ein Verfahren zum Kappen nach dem Oberbegriff des Anspruchs 7.The invention relates to a Kappvorrichtungsanordnung according to the preamble of claim 1 and a method of capping according to the preamble of claim 7.

Kappvorrichtungsanordnungen der genannten Art dienen dazu, einen Kantenbandüberstand an Schmalseiten plattenförmiger Werkstücke, dies sind im Sinne der Erfindung insbesondere Möbelpaneele aus Holz oder Holzersatzstoffen, abzutrennen, um das Kantenband bündig mit der Schmalseite abschließen zu lassen.Kappvorrichtungsanordnungen of the type mentioned serve an edge band projection on narrow sides of plate-shaped workpieces, these are in the context of the invention, in particular furniture panels made of wood or wood substitutes, separate to make the edge band flush with the narrow side.

Bekannt sind insbesondere Vorkappvorrichtungen wie aus DE 101 24 081 C1 , welche grobe Trennschnitte im Kantenband vorsehen. Nach dem Vorkappen ist eine Feinbearbeitung erforderlich; diese muss mit anderen Aggregaten durchgeführt werden, um die gewünschte Bündigkeit zu erreichen.In particular Vorkappvorrichtungen are known as from DE 101 24 081 C1 , which provide rough cuts in the edge band. After precutting a fine machining is required; this must be done with other aggregates to achieve the desired flush.

Bei Vorkappvorrichtungen wird ein Kappaggregat eingesetzt, welches exzentrisch gelagert ist. So kann es dem Werkstück zugestellt und nach dem Kappen von diesem wieder abgezogen werden, ohne dass das am Kappaggregat vorbeilaufende Werkstück behindert wird. Für das Vorkappen wird das Kappaggregat in seiner Bewegung mit der Bewegung des Werkstücks synchronisiert. Die Synchronisation erfolgt dabei in Abhängigkeit der Laufgeschwindigkeit der die Werkstücke transportierenden Transportkette. Diese Vorgehensweise ist ungenau, da die Geschwindigkeit der Transportkette durch inhärente Eigenschaften der Kette stark schwankt und daher äußerst toleranzbehaftet ist. Eine solche Kappvorrichtungsanordnung ist demnach allenfalls für eine Grobbearbeitung geeignet. Man benötigt zusätzliche Feinbearbeitungsaggregate.In Vorkappvorrichtungen a trimming unit is used, which is mounted eccentrically. So it can be delivered to the workpiece and deducted after caps of this again without the past the trimming unit workpiece is obstructed. For the preliminary folding, the trimming unit is synchronized in its movement with the movement of the workpiece. The synchronization takes place as a function of the speed of movement of the workpieces transporting transport chain. This approach is inaccurate because the speed of the transport chain varies greatly due to inherent characteristics of the chain and is therefore extremely tolerant. Such a Kappvorrichtungsanordnung is therefore suitable at best for a roughing. You need additional finishing units.

Aus EP 2 311 612 A2 ist eine Vorrichtung zum Bearbeiten von Werkstücken bekannt, welche an einer Schwinge eine Mehrzahl Sägeblätter aufweist. Diese werden dem Werkstück zugestellt, um darin eine Mehrzahl Schnitte zur Ausbildung einer Kammstruktur einzubringen. Dazu müssen die Bewegung der Sägen und die des Werkstücks synchronisiert werden. Eine solche Vorrichtung ist jedoch für den oben beschriebenen Kappvorgang nicht geeignet, da beim Kappen in der Regel andere Winkel als 90° zur Vorschubrichtung erforderlich sind.Out EP 2 311 612 A2 a device for machining workpieces is known which has a plurality of saw blades on a rocker. These are delivered to the workpiece to introduce a plurality of cuts therein to form a comb structure. For this purpose, the movement of the saws and those of the workpiece must be synchronized. However, such a device is not suitable for the above-described Kappvorgang, since when caps are usually required other angles than 90 ° to the feed direction.

Aufgabe der Erfindung ist es, eine Kappvorrichtungsanordnung und ein Kappverfahren anzugeben, mit denen sowohl ein Vorkappen als auch eine Feinbearbeitung mit lediglich einem Aggregat möglich sind.The object of the invention is to provide a Kappvorrichtungsanordnung and a Kappverfahren with which both a Vorkappen and a fine machining with only one unit are possible.

Gelöst wird diese Aufgabe durch eine Kappvorrichtungsanordnung mit den Merkmalen des Anspruchs 1 sowie durch ein Verfahren mit den Merkmalen des Anspruchs 8. Vorteilhafte Ausführungsformen finden sich in den Unteransprüchen.This object is achieved by a Kappvorrichtungsanordnung with the features of claim 1 and by a method having the features of claim 8. Advantageous embodiments can be found in the subclaims.

Erfindungsgemäß ist vorgesehen, dass zur Ansteuerung des Kappaggregats die Bewegung bzw. die Position eines Tastelements ausgewertet wird. Diese Bewegung wird - beispielsweise über einen Inkrementalgeber - in Form von Bewegungsinformationen von der Steuereinheit erfasst und die Zustellbewegung des Kappaggregats wird in Abhängigkeit der Bewegung bzw. Position des Tastelements gesteuert. Dabei kann zusätzlich vorgesehen sein, dass die Steuerung nicht nur die Bewegungsinformationen erfasst und auswertet, sondern auch einen vorgegebenen Schnittverlauf des zu kappenden Kantenbandes, insbesondere, wenn die Kappsäge wie oftmals üblich, keinen Schnitt 90° zur Vorschubrichtung des Werkstücks, sondern einen Winkel kleiner oder größer 90° einnimmt. So kann das Werkstück positionsgenau erfasst und die Kappung des Kantenbandes exakt und mit minimaler Toleranz ausgeführt werden. Im Gegensatz zu einer bloßen Synchronisation des Kappaggregats mit der Vorschubgeschwindigkeit kann auf die geschilderte Weise auch die beim Kappen übliche Schrägstellung des Kappwerkzeugs berücksichtigt werden, was zu sauberen Kappergebnissen führt.According to the invention, the movement or the position of a probe element is evaluated for the control of the trimming unit. This movement is detected by the control unit in the form of movement information, for example via an incremental encoder, and the feed movement of the trimming unit is controlled as a function of the movement or position of the feeler element. It can additionally be provided that the controller detects and evaluates not only the movement information, but also a predetermined cutting path of the edge band to be cut, in particular, if the chop saw as often usual, no cut 90 ° to the feed direction of the workpiece, but an angle smaller or larger than 90 °. In this way, the workpiece can be detected accurately and the edge band can be cut exactly and with minimal tolerance. In contrast to a mere synchronization of the trimming unit with the feed speed can be considered in the manner described, the usual tilting of the capping tool during caps, resulting in clean Kappergebnissen.

Bevorzugt weist die Exzentervorrichtung zwei parallele Schwingen mit Drehlagern auf, welche über einen Antriebsriemen und/oder ein Getriebe mit dem Drehantrieb gekoppelt sein können. Diese Schwingenanordnung erlaubt eine definierte Bewegung des Kappaggregats, das bevorzugt wenigstens eine Säge aufweist, bei der Zustellung bzw. der Entfernung aus dem Eingriffsbereich mit dem Werkstück auf einer definierten Bahn.Preferably, the eccentric on two parallel rockers with pivot bearings, which may be coupled via a drive belt and / or a gearbox with the rotary drive. This rocker arrangement allows a defined movement of the trimming unit, which preferably has at least one saw, during the delivery or the removal from the engagement area with the workpiece on a defined path.

Es kann insbesondere vorgesehen sein, dass die Steuervorrichtung den Drehantrieb steuert. Dies geschieht dann wie oben beschrieben in Abhängigkeit der Geschwindigkeit des Tastelements, welches an dem Werkstück in Anlage gehalten wird und deshalb immer ein Maß für die Geschwindigkeit des Werkstücks liefert.It can be provided in particular that the control device controls the rotary drive. This is then done as described above in dependence on the speed of the probe element, which is held on the workpiece in plant and therefore always provides a measure of the speed of the workpiece.

Durch die exzentrische Anordnung führt das Kappaggregat bei der Zustellbewegung eine überlagerte Bewegung mit einer Komponente in Zustellrichtung und einer Komponente in Bewegungsrichtung aus. Dabei kann insbesondere vorgesehen sein, dass das Kappaggregat so gesteuert wird, dass die Bewegungsgeschwindigkeitskomponente des Kappaggregats in Bewegungsrichtung des Werkstücks und die Bewegungsgeschwindigkeitskomponente in Zustellrichtung (Y) wenigstens während des Kappens eine lineare Schnittbewegung erzeugen. Weiter kann vorgesehen sein, dass das Kappaggregat so gesteuert wird, dass seine Bewegungsgeschwindigkeitskomponente des in Bewegungsrichtung nach dem Kappen größer - insbesondere, wenn das Kappen im Bereich der in Vorschubrichtung des Werkstücks vorauslaufenden Schmalseite des Werkstücks erfolgt - und/oder kleiner - insbesondere, wenn das Kappen im Bereich der in Vorschubrichtung des Werkstücks nachlaufenden Schmalseite des Werkstücks erfolgt - ist als die Vorschubgeschwindigkeit des Tastelements und/oder Werkstücks.Due to the eccentric arrangement, the trimming unit performs a superimposed movement with a component in the feed direction and a component in the direction of movement during the feed movement. It can be provided in particular that the trimming unit is controlled so that the movement speed component of the trimming unit in the direction of movement of the workpiece and the movement speed component in the feed direction (Y) at least during capping produce a linear cutting motion. It can further be provided that the trimming unit is controlled in such a way that its movement speed component increases in the direction of movement after capping - in particular if the capping takes place in the region of the narrow side of the workpiece leading in the direction of advance of the workpiece - and / or smaller - in particular if Caps in the region of the trailing in the feed direction of the workpiece narrow side of the workpiece is - is as the feed rate of the probe element and / or workpiece.

Praktisch wird unmittelbar vor dem Kappen das Kappaggregat auf eine Geschwindigkeit gebracht - insbesondere beschleunigt - welche der Bewegungsgeschwindigkeit des Werkstücks entspricht, die durch die Bewegung des Tastelements von der Steuerung erfasst wird. Die Steuerung synchronisiert oder verrechnet - insbesondere bei zusätzlicher Einbeziehung des vorgegebenen Schnittverlaufs am Kantenband (d.h. des vorgegebenen Profils der Kappstelle) also die Exzenterbewegung des Kappaggregats mit dem Vorschub des Werkstücks, so dass während des Kappvorgangs ein Gleichlauf des Kappschnitts erzielt wird. Nach dem Durchtrennen wird das Kappaggregat durch Beschleunigen des Drehantriebs aus der Bewegungsbahn des Werkstücks abgezogen.Practically, immediately before capping, the trimming unit is brought to a speed - in particular accelerated - which corresponds to the movement speed of the workpiece, which is detected by the movement of the probe element by the control. The control synchronizes or accounts for the eccentric movement of the trimming unit with the feed of the workpiece, in particular with the additional inclusion of the predetermined cutting path on the edge band (i.e., the predetermined profile of the trimming point), so that a co-cutting of the trimming cut is achieved during the trimming operation. After cutting, the trimming unit is removed by accelerating the rotary drive from the path of movement of the workpiece.

Es kann vorgesehen sein, dass das Kappaggregat um eine Schwenkachse senkrecht zur Bewegungsrichtung X und senkrecht zur Zustellrichtung schwenkbar ist. So können etwa zwei Sägen oder Bearbeitungswerkzeuge, eines für die vorauslaufende Kappung und eines für die nachlaufende Kappung, vorgesehen und dem Werkstück durch Schwenken des Kappaggregats zugestellt werden.It can be provided that the trimming unit is pivotable about a pivot axis perpendicular to the movement direction X and perpendicular to the feed direction. Thus, for example, two saws or processing tools, one for the leading end capping and one for the trailing end capping, can be provided and delivered to the workpiece by pivoting the trimming unit.

Die Erfindung wird nachfolgend anhand der Figuren 1 bis 3 näher erläutert.

  • Figur 1 zeigt eine schematische Draufsicht auf eine erfindungsgemäße Kappvorrichtungsanordnung vor dem Kappen.
  • Figur 2 zeigt eine schematische Draufsicht auf eine erfindungsgemäße Kappvorrichtungsanordnung während des Kappens.
  • Figur 3 zeigt eine schematische Draufsicht auf eine erfindungsgemäße Kappvorrichtungsanordnung nach dem Kappen.
The invention will be described below with reference to FIGS. 1 to 3 explained in more detail.
  • FIG. 1 shows a schematic plan view of a Kappvorrichtungsanordnung invention before capping.
  • FIG. 2 shows a schematic plan view of a capping device according to the invention during capping.
  • FIG. 3 shows a schematic plan view of a capping device according to the invention after capping.

In den Figuren bezeichnet 2 eine Transportvorrichtung mit der die Werkstücke 1 entlang einer Bewegungsrichtung X an der Kappvorrichtung 4 vorbeigeführt werden. Die Kappvorrichtung 4 ist an einer Lagerung 3 angeordnet und weist einen Drehantrieb 43 auf, welcher mit einer Exzentervorrichtung (41, 42) gekoppelt ist. Die Kopplung ist bevorzugt so ausgeführt, dass ein Zahnriemen 44 um die Welle des Drehantriebs 43 und Führungsabschnitte 41a, 42a der Exzentervorrichtung 41, 42 geführt ist. Alternativ oder ergänzend kann die Exzentervorrichtung 41, 42 auch anderweitig mit dem Drehantrieb in Wirkverbindung stehen, etwa über ein Getriebe oder es kann ein Exzenter auf der Welle des Drehantriebes 43 vorgesehen sein. An der Exzentervorrichtung 41, 42 ist ein Kappaggregat mit wenigstens einem Antrieb 4a und wenigstens einem Werkzeug 4b, insbesondere einer Kappsäge, angeordnet. Das Kappaggregat 4a, 4b bzw. das Werkzeug kann gegenüber der Exzentervorrichtung 41, 42 schwenkbar gelagert sein, um den Anstellwinkel des Kappwerkzeugs relativ zum Werkstück 1 einzustellen. Über die Exzentervorrichtung 41, 42 wird das Kappaggregat 4a, 4b in Zustellrichtung Y dem Werkstück zugestellt. Dies bedeutet, dass das Kappaggregat 4a, 4b beim Zustellen mindestens eine Bewegungskomponente in Zustellrichtung Y ausführt. Durch die Exzenteranordnung wird dabei gleichzeitig auch eine Bewegungskomponente in Richtung der Bewegungsrichtung X ausgeführt.In the figures, 2 denotes a transport device with which the workpieces 1 are guided past the cutting device 4 along a movement direction X. The capping device 4 is arranged on a bearing 3 and has a rotary drive 43, which is coupled to an eccentric device (41, 42). The coupling is preferably designed such that a toothed belt 44 is guided around the shaft of the rotary drive 43 and guide sections 41a, 42a of the eccentric device 41, 42. Alternatively or additionally, the eccentric 41, 42 may be otherwise in operative connection with the rotary drive, such as a gear or it may be provided on the shaft of the rotary drive 43, an eccentric. On the eccentric 41, 42 is a trimming unit with at least one drive 4a and at least one tool 4b, in particular a chop saw, arranged. The trimming unit 4a, 4b or the tool can be mounted pivotably relative to the eccentric device 41, 42 in order to set the angle of attack of the trimming tool relative to the workpiece 1. About the eccentric 41, 42 the trimming unit 4a, 4b delivered in the feed direction Y the workpiece. This means that the trimming unit 4a, 4b executes at least one movement component in the feed direction Y when delivering. Due to the eccentric arrangement, a movement component in the direction of the movement direction X is also executed at the same time.

Im gezeigten Beispiel ist die Exzentervorrichtung 41, 42 durch zwei parallel angeordnete Schwingen 41 und 42 realisiert, welche an der Lagerung 3 schwenkbar angelenkt und mit dem Drehantrieb 43 über ein Kopplungselement 44 im Bereich ihrer jeweiligen Führungsabschnitte 41a, 42a gekoppelt sind. Wird der Drehantrieb 43 betätigt, so schwingen beide Schwingen 41, 42 parallel zueinander und bewegen das mit wenigstens einer Schwinge 42 verbundene Kappaggregat 4a, 4b auf einer festen Bahn, insbesondere einer Kreisbahn, führen also eine kombinierte Bewegung mit Komponenten in X- als auch in Y-Richtung aus.In the example shown, the eccentric 41, 42 by two parallel arranged rockers 41 and 42 realized, which are pivotally hinged to the bearing 3 and coupled to the rotary drive 43 via a coupling element 44 in the region of their respective guide portions 41a, 42a. If the rotary drive 43 is actuated, then both rockers 41, 42 oscillate parallel to one another and move the trimming unit 4a, 4b connected to at least one rocker 42 on a fixed path, in particular a circular path, thus leading to combined movement with components in X as well as in FIG Y direction off.

Die erfindungsgemäße Vorrichtung weist weiter eine (nicht gezeigte) Steuerung auf, die den Drehantrieb 43 in Abhängigkeit von Bewegungsinformationen steuert. Diese Bewegungsinformationen werden von einem zur erfindungsgemäßen Anordnung gehörenden Tastelement 5 erhalten. Dieses Tastelement ist so gesteuert, dass es sich immer in Anlage an einem zu bearbeitenden Werkstück 1 befindet, entweder an der in Bewegungsrichtung X nachlaufenden oder/und der in Bewegungsrichtung X vorauslaufenden Schmalseite des Werkstücks. Die momentane Position des Tastelements 5 entspricht also immer der Position der vorderen oder der nachlaufenden Schmalseite des Werkstücks 1 und kann damit zur Positionierung und Ansteuerung des Kappaggregats 4a, 4b herangezogen werden. Die Bewegungsdaten des Tastelements 5, die etwa durch einen Inkrementalgeber oder optisch erzeugt werden können, werden in Form von Bewegungsinformationen an die Steuerung weiter geleitet, die weiß, an welchem Ort sich das Werkstück 1 und damit die mit dem Kappaggregat 4a, 4b anzufahrende Kappstelle des auf der parallel zur Bewegungsrichtung X laufenden Schmalseite angebrachten und überstehenden Kantenbandes befindet.The device according to the invention also has a control (not shown) which controls the rotary drive 43 in response to movement information. This movement information is obtained from a sensing element 5 belonging to the arrangement according to the invention. This probe element is controlled so that it is always in contact with a workpiece 1 to be machined, either on the trailing in the direction of movement X and / or the leading in the direction of movement X narrow side of the workpiece. The current position of the probe element 5 thus always corresponds to the position of the front or the trailing narrow side of the workpiece 1 and can thus be used for positioning and control of the trimming unit 4a, 4b. The movement data of the probe element 5, which can be generated approximately by an incremental encoder or optically, are in the form of motion information passed on to the controller, which knows where the workpiece 1 and thus with the trimming unit 4a, 4b to be approached Kappstelle of the running parallel to the direction of movement X narrow side and protruding edge band is located.

Die Steuerung arbeitet nun so, dass sie die Position des Werkstücks 1 wie geschildert erfasst und mit dieser Position die Bewegung des Kappaggregates 4a, 4b über die Ansteuerung des Drehantriebs synchronisiert oder verrechnet, so dass während des Kappens ein Gleichlauf (d.h. im Wesentlichen die gleiche Geschwindigkeit) zwischen Kappaggregat und der Richtung des Kappschnitts erreicht wird und die Kappung punktgenau ausgeführt werden kann, Figur 2.The controller now works so that it detects the position of the workpiece 1 as described and synchronized or offset with this position, the movement of the trimming unit 4a, 4b via the control of the rotary drive, so that during capping a synchronization (ie, substantially the same speed ) between the trimming unit and the direction of the trimming cut is achieved and the capping can be carried out with pinpoint accuracy, FIG. 2 ,

Nach dem Kappen, insbesondere an der vorauslaufenden Schmalseite des Werkstücks 1, sorgt der Exzentermechanismus dafür, dass das Kappaggregat 4a, 4b entgegen der Richtung Y vom Werkstück zurückgezogen wird und dabei möglichst in Richtung X dem Werkstück vorauseilt, damit das in Bewegungsrichtung X transportierte Werkstück 1 nicht durch das Kappaggregat 4a, 4b behindert wird, Figur 3. Ähnlich kann vorgesehen sein, dass beim Kappen des Überstandes an der nachlaufenden Schmalseite des Werkstücks die Geschwindigkeit (Komponente in Bewegungsrichtung X) des Kappaggregats nach dem Kappen geringer ist als die des Werkstücks, so dass es auch hier nicht zu Behinderungen kommt.After capping, in particular on the leading narrow side of the workpiece 1, the eccentric mechanism ensures that the trimming unit 4a, 4b is withdrawn from the workpiece counter to the direction Y, thereby leading the workpiece in the direction X, so that the workpiece 1 transported in the movement direction X. is not obstructed by the trimming unit 4a, 4b, FIG. 3 , Similarly, it can be provided that when the projection of the overhang on the trailing narrow side of the workpiece, the speed (component in the direction of movement X) of the trimming unit after capping is lower than that of the workpiece, so that there are no hindrances here.

Claims (13)

Kappvorrichtungsanordnung zum Kappen des Überstandes eines auf der Schmalseite eines plattenförmigen Werkstücks (1) angebrachten Kantenbandes, aufweisend eine Bewegungsvorrichtung (2) zum Bewegen des Werkstücks (1) in einer Bewegungsrichtung (X) sowie eine Kappvorrichtung (4) mit einem Kappaggregat (4a, 4b), welches in einer Zustellrichtung (Y) senkrecht zur Bewegungsrichtung (X) dem Werkstück (1) zustellbar ausgebildet ist, wobei zur Ausführung der Zustellbewegung das Kappaggregat (4a, 4b) an einer über einen Drehantrieb (43) angetriebenen Exzentervorrichtung (41, 42) gelagert ist, wobei die Kappvorrichtungsanordnung weiter eine Steuervorrichtung aufweist, welche die Zustellung des Kappaggregats (4a, 4b) abhängig von der Bewegung des Werkstücks (1) steuert, wobei die Kappvorrichtungsanordnung ein in Bewegungsrichtung (X) bewegliches Tastelement (5) zur Anlage gegen die in Bewegungsrichtung (X) vorauslaufende und/oder in Bewegungsrichtung (X) hinterherlaufende Kante des Werkstücks (1) aufweist, wobei die Steuervorrichtung so ausgebildet ist, dass sie die Bewegungsinformationen des Tastelements (5) erhält und in Abhängigkeit von den erhaltenen Bewegungsinformationen die Zustellung des Kappaggregats (4a, 4b) bewirkt.A capping device for capping the projection of an edge band attached to the narrow side of a plate-shaped workpiece (1), comprising a moving device (2) for moving the workpiece (1) in a direction of movement (X) and a capping device (4) having a capping unit (4a, 4b ), which in a feed direction (Y) perpendicular to the movement direction (X) the workpiece (1) is deliverable, wherein for performing the Zustellbewegung the trimming unit (4a, 4b) on a via a rotary drive (43) driven eccentric (41, 42 ), wherein the Kappvorrichtungsanordnung further comprises a control device which controls the delivery of the Kappaggregats (4a, 4b) depending on the movement of the workpiece (1), wherein the Kappvorrichtungsanordnung in the direction of movement (X) movable sensing element (5) against the the leading in the direction of movement (X) and / or in the direction of movement (X) running edge of the Werkst (1), wherein the control device is designed such that it receives the movement information of the probe element (5) and effects the delivery of the trimming unit (4a, 4b) as a function of the movement information obtained. Kappvorrichtungsanordnung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Steuervorrichtung weiter so ausgebildet ist, dass sie die Zustellung des Kappaggregats (4a, 4b) in Abhängigkeit von den erhaltenen Bewegungsinformationen und eines für das Kantenband vorgegebenen Schnittverlaufs bewirkt.A capping arrangement according to claim 1,
characterized,
in that the control device is further designed such that it effects the delivery of the trimming unit (4a, 4b) as a function of the movement information obtained and a cutting profile predetermined for the edge band. Kappvorrichtungsanordnung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Exzentervorrichtung (41, 42) zwei parallele Schwingen (41, 42) mit Drehlagern (41a, 42a) aufweist.A capping arrangement according to claim 1,
characterized,
in that the eccentric device (41, 42) has two parallel rockers (41, 42) with pivot bearings (41a, 42a). Kappvorrichtungsanordnung nach Anspruch 2,
dadurch gekennzeichnet,
dass die Drehlager (41a, 42a) über einen Antriebsriemen (44) und/oder ein Getriebe mit dem Drehantrieb (43) gekoppelt sind.A capping arrangement according to claim 2,
characterized,
in that the rotary bearings (41a, 42a) are coupled to the rotary drive (43) via a drive belt (44) and / or a gear. Kappvorrichtungsanordnung nach einem der vorigen Ansprüche,
dadurch gekennzeichnet,
dass das Kappaggregat wenigstens eine Säge (4b) aufweist.A capping arrangement according to one of the preceding claims,
characterized,
that the saw unit includes a saw (4b) at least. Kappvorrichtungsanordnung nach einem der vorigen An sprüche,
dadurch gekennzeichnet,
dass die Steuervorrichtung den Drehantrieb (43) steuert.Trimming device arrangement according to one of the preceding claims,
characterized,
in that the control device controls the rotary drive (43). Kappvorrichtungsanordnung nach einem der vorigen Ansprüche,
dadurch gekennzeichnet,
dass das Kappaggregat (4a, 4b) und/oder das Kappwerkzeug (4b) um eine Schwenkachse - zumindest im Wesentlichen - senkrecht zur Bewegungsrichtung (X) und - zumindest im Wesentlichen - senkrecht zur Zustellrichtung (Y) schwenkbar ist.A capping arrangement according to one of the preceding claims,
characterized,
in that the trimming unit (4a, 4b) and / or the trimming tool (4b) are pivotable about a pivot axis - at least substantially - perpendicular to the direction of movement (X) and - at least substantially - perpendicular to the feed direction (Y). Verfahren zum Kappen des Überstandes eines auf der Schmalseite eines plattenförmigen Werkstücks (1) aufgebrachten Kantenbandes, bei welchem ein mit einem Kantenband schmalseitig beschichtetes plattenförmiges Werkstück (1) einer Kappvorrichtungsanordnung, insbesondere nach einem der vorigen Ansprüche, in einer Bewegungsrichtung (X) zugeführt wird und ein gegenüber der in Bewegungsrichtung (X) vorauslaufenden und/oder hinterherlaufenden Kante des Werkstücks (1) überstehender Teil des Kantenbandes mittels eines Kappaggregats (4a, 4b) der Kappvorrichtungsanordnung abgetrennt wird, wobei das Kappaggregat (4a, 4b) wenigstens in einer Zustellrichtung (Y) dem Werkstück (1) zum Kappen des Kantenbandes zugestellt und dabei in Abhängigkeit der Bewegung des Werkstückes (1) bewegt wird, wobei die Bewegung des Werkstücks (1) durch Anlage eines beweglichen Tastelements (5) zur gegen die in Bewegungsrichtung (X) vorauslaufende und/oder in Bewegungsrichtung (X) hinterherlaufende Kante des Werkstücks (1) und Erfassen der Bewegung des Tastelements (5) in Form von Bewegungsinformationen erfasst werden und die Zustellung des Kappaggregats (4a, 4b) in Abhängigkeit von den erhaltenen Bewegungsinformationen erfolgt.Method for capping the projection of an edge band applied on the narrow side of a plate-shaped workpiece (1), in which a plate-shaped workpiece (1) coated narrow-sided with an edge band is fed to a capping arrangement, in particular according to one of the preceding claims, in a direction of movement (X) and a part of the edge band projecting beyond the edge of the workpiece (1) running in the direction of movement (X) and / or following is severed by means of a trimming unit (4a, 4b) of the trimming device, the trimming device (4a, 4b) being displaced in at least one feed direction (Y ) is delivered to the workpiece (1) for capping the edge band and thereby in response to the movement of the workpiece (1) is moved, wherein the movement of the workpiece (1) by abutment of a movable probe element (5) against the in the direction of movement (X) leading and / or in the direction of movement (X) trailing edge of the Workpiece (1) and detecting the movement of the probe element (5) are detected in the form of movement information and the delivery of the trimming unit (4a, 4b) takes place in dependence on the obtained movement information. Verfahren nach Anspruch 8,
dadurch gekennzeichnet,
dass die Zustellung des Kappaggregats (4a, 4b) in Abhängigkeit von den erhaltenen Bewegungsinformationen und eines für das Kantenband vorgegebenen Schnittverlaufs bewirkt wird.Method according to claim 8,
characterized,
that the delivery of the Kappaggregats (4a, 4b) is effected in dependence on the obtained movement information and a predetermined band for edge section gradient. Verfahren nach Anspruch 8 oder 9,
dadurch gekennzeichnet,
dass das Kappaggregat (4a, 4b) bei der Zustellbewegung eine überlagerte Bewegung mit einer Komponente in Zustellrichtung (Y) und einer Komponente in Bewegungsrichtung (X) ausführt.Method according to claim 8 or 9,
characterized,
that the trimming unit (4a, 4b) carries out a superimposed movement with a component in the feed direction (Y) and a component in the direction of movement (X) during the feed movement. Verfahren nach Anspruch 10,
dadurch gekennzeichnet,
dass das Kappaggregat (4a, 4b) so gesteuert wird, dass die Bewegungsgeschwindigkeitskomponente des Kappaggregats (4a, 4b) in Bewegungsrichtung (X) und die Bewegungsgeschwindigkeitskomponente in Zustellrichtung (Y) wenigstens während des Kappens eine lineare Schnittbewegung erzeugen.Method according to claim 10,
characterized,
in that the trimming unit (4a, 4b) is controlled such that the movement speed component of the trimming unit (4a, 4b) in the direction of movement (X) and the movement speed component in the feed direction (Y) produce a linear cutting movement at least during the trimming. Verfahren nach Anspruch 11,
dadurch gekennzeichnet,
dass das Kappaggregat (4a, 4b) weiter so gesteuert wird, dass seine Bewegungsgeschwindigkeitskomponente in Bewegungsrichtung (X) nach dem Kappen größer ist als die Vorschubgeschwindigkeit des Tastelements (5) und/oder des Werkstücks (1).Method according to claim 11,
characterized,
in that the trimming unit (4a, 4b) is further controlled such that its movement speed component in the direction of movement (X) after capping is greater than the feed rate of the feeler element (5) and / or of the workpiece (1). Verfahren nach Anspruch 11 oder 12,
dadurch gekennzeichnet,
dass das Kappaggregat (4a, 4b) weiter so gesteuert wird, dass seine Bewegungsgeschwindigkeitskomponente in Bewegungsrichtung (X) nach dem Kappen kleiner ist als die Vorschubgeschwindigkeit des Tastelements (5) und/oder des Werkstücks (1).Method according to claim 11 or 12,
characterized,
in that the trimming unit (4a, 4b) is further controlled such that its movement speed component in the direction of movement (X) after the trimming is smaller than the feed rate of the feeler element (5) and / or of the workpiece (1).
EP14001546.2A 2013-05-02 2014-05-02 Capping device assembly and method for capping Active EP2808138B1 (en)

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