EP3124191B1 - Machining unit for processing plate-like workpieces and method for machining a plate-like workpiece - Google Patents

Machining unit for processing plate-like workpieces and method for machining a plate-like workpiece Download PDF

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Publication number
EP3124191B1
EP3124191B1 EP16180752.4A EP16180752A EP3124191B1 EP 3124191 B1 EP3124191 B1 EP 3124191B1 EP 16180752 A EP16180752 A EP 16180752A EP 3124191 B1 EP3124191 B1 EP 3124191B1
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Prior art keywords
workpiece
milling
scanning
machining
finishing
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German (de)
French (fr)
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EP3124191A1 (en
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Rainer Schlotter
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Homag GmbH
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Homag GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists

Definitions

  • the invention relates to processing units for the processing of plate-shaped workpieces with at least one narrow and one broad side, the workpieces preferably at least partially made of wood, wood materials, plastics or the like, according to the preamble of claim 1.
  • Processing units of the type mentioned are widely used in the machining of workpieces, on the narrow side of an edge or edge material has been applied.
  • machining units which have a milling device, in particular a flush trimming unit, with which / the edge is first milled approximately flush with the workpiece surface on the broad side of the workpiece.
  • the edge is removed with a scraper tool, in particular a profile scraper blade, so that a smooth surface of the edge material is formed.
  • a glue joint scraper blade is removed by means of a glue joint scraper blade.
  • the DE 10 2007 029 918 A1 such a processing unit with a scraper, which is rotatably mounted and spaced from the mill on an arm.
  • a processing unit which serves for the processing of plate-shaped workpieces with at least one narrow and one broad side, which preferably at least partially made of wood, wood materials, plastics or the like.
  • the processing unit has a milling device for machining, in particular flush milling, of the workpiece in the region of an edge on the narrow side of the workpiece, a first sensing device for scanning the broad side of the workpiece for positioning the milling relative to the broad side of the workpiece, and at least one post-processing device, in particular Glue joint knife, for reworking the workpiece in the area of the milled edge, in particular also for removing glue residue, more particularly from the broad side of the workpiece.
  • Post-processing device arranged such that the post-processing device at least partially between the first sensing device and the milling device in a view perpendicular to the broad side of the workpiece, ie in a plan view, preferably in one of the milling device downstream in the processing direction area is arranged.
  • the method for processing a plate-shaped workpiece with at least one narrow and one broad side which are preferably at least partially made of wood, wood materials, plastics or the like, preferably provided with the processing unit according to the invention, the steps of applying an edge material the narrow side of the workpiece, keys the broad side of the workpiece by a first sensing device and positioning the milling relative to the broad side of the workpiece, machining, in particular flush milling, the workpiece in the region of the edge by a milling device and reworking of the workpiece in the milled edge, in particular Also removal of glue residues, by a post-processing device, which is at least partially disposed between the first sensing device and the milling device during the machining by the Fräseinrichtun g, preferably in a region downstream of the milling device in the machining direction.
  • the side of the post-processing device which points to the broad side of the workpiece in the area of the milled edge is pressed resiliently onto the surface of the workpiece broadside, glue residues being scraped off or scratched off from one another by the relative movement of the workpiece and the processing unit.
  • the post-processing device adapts automatically to the workpiece surface.
  • post-processing device is arranged at least in sections in the region between the first sensing device and the milling device, post-processing by the post-processing device is performed immediately after the machining by the milling device, namely almost simultaneously. This leads to a time saving, since no separate post-processing step is necessary.
  • the post-processing device is close to the milling device, in the case of a rotary trimming cutter as a milling device, in particular glue residues which have been removed by the post-processing device are removed and removed by the milling device, in particular by the teeth of the milling device. As a result, an impairment of the processing can be prevented by glue residues and the quality of the processing can be increased.
  • the post-processing device when the post-processing device is located between the first sensing device and the milling device, a part of the post-processing device is always located on the broad side of the workpiece. Thus, it can not happen that the post-processing device leaves the workpiece surface, which can occur in conventional post-processing devices in the post-processing of workpiece corners or workpieces with small external radii.
  • the prior art actuators for allowing reentry of the post-processor after leaving the workpiece surface without abutting or colliding with the workpiece or edge are thus not necessary in the present invention.
  • the invention is based on the idea to carry out the machining by the milling device and the post-processing by the post-processing device in one operation or combine, in the immediate temporal and spatial proximity. Roughly speaking, therefore, the milling device and the post-processing device are simultaneously engaged with the workpiece, so that the processing and post-processing of a workpiece section takes place essentially simultaneously.
  • the post-processing device is a glue joint knife (glue joint scraper blade), which can essentially remove glue residues from a broad side of the workpiece.
  • glue joint knife glue joint scraper blade
  • the post-processing device corresponds to a profile scraper, which smoothes the surface of the milled edge.
  • the post-processing device is not to be understood as a sensing device which merely serves to align, for example, the milling device relative to the workpiece.
  • the processing unit may have a second sensing device for actuating the narrow side of the workpiece for positioning the milling device relative to the narrow side of the workpiece, wherein the post-processing device in a view perpendicular to the broad side of the workpiece, ie in a plan view, at least partially between the first and second sensing device of the milling unit is arranged. It is also an embodiment conceivable having the features of the preamble of claim 1 and these features. By such an arrangement, the immediate proximity between the milling device and the post-processing device can also be achieved.
  • the milling device is arranged on a resiliently mounted scanning carriage
  • the post-processing device is arranged on the resiliently mounted scanning carriage of the milling device.
  • the position of the milling device can be flexibly adapted to the workpiece by the scanning carriage of the milling device, which permits a resilient mounting of the milling device relative to other components, in particular stationary components of the machining assembly such as a support frame.
  • the post-processing device can move along with the milling device accordingly.
  • a spring force in the case of a spring-loaded Tastschlittens generates the processing power for the post-processing device.
  • the post-processing device is arranged on a resiliently mounted Tastschlitten the post-processing device, which is preferably provided in addition to the Tastschlitten the milling device and is further preferably provided via a flexible bearing on a supporting frame of the processing unit. If a scanning carriage of the milling device is provided with a separate scanning carriage of the post-processing device, which is arranged, for example, flexibly on the supporting frame, the machining power of the post-processing device can be adjusted independently of the setting of the milling device.
  • a flexible mounting of the post-processing device can be located between the scanning carriage of the post-processing device and the post-processing device or between the scanning carriage of the milling device and the post-processing device.
  • the post-processing device does not have its own scanning device for scanning the broad side of the workpiece, but is at the same time a post-processing device in the sense of tool and sensing device or contact shoe. This simplifies the structure of the processing unit and at the same time allows a higher precision of the post-processing, since no separate sensing device must be provided for positioning the post-processing device.
  • a further post-processing device preferably a profiled scraper, can be provided for reworking the area of the milled edge, wherein this further post-processing device, which may be provided in addition to the post-processing device of the preceding embodiments, downstream arranged in the processing direction to the milling device and preferably to the post-processing device of the previous embodiments is.
  • the processing unit is free of such a further post-processing device, since such is not necessary due to a special flush milling as a milling device. This is the case in particular when a better surface quality than with conventional trimming cutters can already be achieved during the machining by a special cutting geometry of the milling device.
  • FIG. 1 shows an embodiment of the processing unit according to the invention for processing plate-shaped workpieces 9, which have a narrow side 10a and a broad side 10b, which are preferably perpendicular to each other.
  • the broad side 10b is oriented downward and is not visible, while the narrow side 10a of the workpiece 9 is oriented away from the viewing plane to the right rear.
  • an edge in the form of an edge material 11 is applied by means of a glue layer on the narrow side 10a.
  • the glue layer forms a glue joint 12 between the narrow side 10 a of the workpiece 9 and the applied edge material 11.
  • the machining of the workpiece 9 takes place under a relative movement to the processing unit.
  • the aggregate is moved relative to the workpiece 9 along the machining direction B during machining.
  • continuous machines are conceivable in where the workpieces 9 are moved relative to the processing unit.
  • the milling device 1 With in FIG. 1 below indicated edge 11, which has been previously applied to the narrow side 10a of the workpiece 9, in engagement and milled flush with the workpiece surface of the broad side 10b.
  • the milling device 1 has a rotatable milling means 1a.
  • the post-processing device 5 processes the workpiece 9 in the area of the milled edge.
  • the post-processing device 5 has a glue joint knife which rests against the broad side of the workpiece 10b and thereby removes glue residues emerging from the glue joint 12 during the movement of the processing unit in the processing direction B.
  • FIG. 1 The first sensing device 2 thus presses from below against the broad side 10b of the workpiece and can thus position the milling device 1 relative to the broad side 10b of the workpiece 9. Furthermore, a second sensing device 3 is provided for laterally pressing the narrow side 10a of the workpiece 9, by means of which the milling unit 1 can be positioned relative to the workpiece 9.
  • the post-processing device 5 is arranged immediately downstream of the milling device 1, at least in sections in a region which lies between the first sensing device 2 and the milling device 1 at the time of milling.
  • the post-processing device 5 is, as in particular from FIG. 2 seen in the view perpendicular to the broadside 10 b of the workpiece 9 at least partially disposed between the first sensing device 2 and the milling device 1. Furthermore, the post-processing device 5 is arranged at least in sections between the first sensing device 2 and the second sensing device 3.
  • FIG. 2 is also the point 5a visible in which the post-processing device 5 viewed in the machine direction B comes into contact with the workpiece 9 directly after processing by the milling device 1 such that the glue residue on the broad side 10b of the workpiece can be removed by the post-processing device 5.
  • FIG. 3 shows that the post-processing device 5 or the glue joint knife has a bent portion downstream of the milling device 1, which extends at least partially around the milling device 1, whereby upon pivoting of the processing unit to, for example, an edge of the workpiece 9 always satisfactory glue residues by contact between the workpiece surface and the glue joint knife 5 can be removed.
  • the milling device 1 is arranged on the resiliently mounted scanning carriage 4 and is thus displaceable perpendicular to the machining direction and to a support frame 13.
  • the post-processing device 5 is arranged on the resiliently mounted Tastschlitten 7 of the post-processing device 5, wherein the resiliently mounted Tastschlitten 7 via the flexible bearing 8, which may be a spring on the support frame 13 perpendicular to the machining direction B is displaceable.
  • the scanning carriage 4 and 7 are mounted perpendicular to the machining direction displaceable to the support frame 13.
  • the post-processing device 5 is arranged on the flexible carriage 6 on the Tastschlitten 7 of the post-processing device 5.
  • the post-processing device 5 can be arranged directly on the scanning carriage 4 of the milling device, in which case the flexible mounting 6 is arranged on the scanning carriage 4 of the milling device 1.
  • the post-processing device 5 is free of a sensing device for actuating the broad side 10b of the workpiece 9, since the post-processing device 5 can take over the function of a sensing device itself by the flexible support 6.
  • the processing unit may have a further post-processing device, which is provided in addition to the post-processing device 5 and in particular may be configured as a profile scraper.

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

Description

Technisches GebietTechnical area

Die Erfindung betrifft Bearbeitungsaggregate für die Bearbeitung von plattenförmigen Werkstücken mit zumindest einer Schmal- und einer Breitseite, wobei die Werkstücke bevorzugt zumindest teilweise aus Holz, Holzwerkstoffen, Kunstwerkstoffen oder dergleichen bestehen, nach dem Oberbegriff von Anspruch 1.The invention relates to processing units for the processing of plate-shaped workpieces with at least one narrow and one broad side, the workpieces preferably at least partially made of wood, wood materials, plastics or the like, according to the preamble of claim 1.

Stand der TechnikState of the art

Bearbeitungsaggregate der eingangs genannten Art finden bei der Bearbeitung von Werkstücken breiten Einsatz, auf deren Schmalseite eine Kante bzw. Kantenmaterial aufgebracht worden ist. Zur Bearbeitung solcher Werkstücke bzw. Kanten werden Bearbeitungsaggregate eingesetzt, die eine Fräseinrichtung, insbesondere ein Bündigfräsaggregat, aufweisen, mit der/dem die Kante zunächst annähernd bündig zur Werkstückoberfläche auf der Breitseite des Werkstücks gefräst wird. Zur Nachbearbeitung der gefrästen Kante wird die Kante mit einem Ziehklingenwerkzeug, insbesondere einer Profilziehklinge, abgezogen, sodass eine glatte Oberfläche des Kantenmaterials entsteht. Zusätzlich wird in einem weiteren Schritt, der nötig ist, wenn das Kantenmaterial mit Leim an die Schmalseite des Werkstücks angebracht worden ist, herausgequollener Leim mittels einer Leimfugenziehklinge bzw. eines Leimfugenmessers entfernt.Processing units of the type mentioned are widely used in the machining of workpieces, on the narrow side of an edge or edge material has been applied. For processing such workpieces or edges machining units are used, which have a milling device, in particular a flush trimming unit, with which / the edge is first milled approximately flush with the workpiece surface on the broad side of the workpiece. For finishing the milled edge, the edge is removed with a scraper tool, in particular a profile scraper blade, so that a smooth surface of the edge material is formed. In addition, in a further step, which is necessary when the edge material has been adhesively attached to the narrow side of the workpiece, swollen glue is removed by means of a glue joint scraper blade.

Beispielsweise offenbart die DE 10 2007 029 918 A1 ein solches Bearbeitungsaggregat mit einer Ziehklinge, die drehbar und beabstandet zur Fräse an einem Arm angebracht ist.For example, the DE 10 2007 029 918 A1 such a processing unit with a scraper, which is rotatably mounted and spaced from the mill on an arm.

Derartige Bearbeitungsaggregate haben sich bewährt. Allerdings werden hinsichtlich der Bearbeitungseffizienz und -qualität immer höhere Anforderungen gestellt.Such processing units have proven themselves. However, ever greater demands are placed on processing efficiency and quality.

Darstellung der ErfindungPresentation of the invention

Es ist Aufgabe der vorliegenden Erfindung, die Bearbeitung von Kantenmaterial an einem plattenförmigen Werkstück bei einfacher Konstruktion dahingehend zu verbessern, dass die Bearbeitung unter Zeitersparnis schneller durchgeführt werden kann, wobei gleichzeitig die Bearbeitung in qualitativer Hinsicht verbessert sein soll.It is an object of the present invention to improve the machining of edge material on a plate-shaped workpiece with a simple construction in that the processing can be carried out faster while saving time, at the same time the processing should be improved in terms of quality.

Diese Aufgabe wird erfindungsgemäß durch das Bearbeitungsaggregat mit den Merkmalen von Anspruch 1 und das Verfahren mit den Merkmalen von Anspruch 8 gelöst.This object is achieved by the processing unit with the features of claim 1 and the method with the features of claim 8.

Demzufolge ist ein Bearbeitungsaggregat vorgesehen, das zur Bearbeitung von plattenförmigen Werkstücken mit zumindest einer Schmal- und einer Breitseite dient, die bevorzugt zumindest teilweise aus Holz, Holzwerkstoffen, Kunststoffen oder dergleichen bestehen. Das Bearbeitungsaggregat weist eine Fräseinrichtung zum spanenden Bearbeiten, insbesondere Bündigfräsen, des Werkstücks im Bereich einer Kante an der Schmalseite des Werkstücks, eine erste Tasteinrichtung zum Tasten der Breitseite des Werkstücks zur Positionierung der Fräseinrichtung relativ zur Breitseite des Werkstücks, und zumindest eine Nachbearbeitungseinrichtung, insbesondere ein Leimfugenmesser, zum Nachbearbeiten des Werkstücks im Bereich der gefrästen Kante, insbesondere auch zum Entfernen von Leimresten, weiter insbesondere von der Breitseite des Werkstücks, auf. Erfindungsgemäß ist die Nachbearbeitungseinrichtung derart angeordnet, dass die Nachbearbeitungseinrichtung zumindest abschnittsweise zwischen der ersten Tasteinrichtung und der Fräseinrichtung in einer Ansicht senkrecht zur Breitseite des Werkstücks, also in einer Draufsicht, vorzugsweise in einem der Fräseinrichtung in Bearbeitungsrichtung nachgelagerten Bereich, angeordnet ist.Accordingly, a processing unit is provided which serves for the processing of plate-shaped workpieces with at least one narrow and one broad side, which preferably at least partially made of wood, wood materials, plastics or the like. The processing unit has a milling device for machining, in particular flush milling, of the workpiece in the region of an edge on the narrow side of the workpiece, a first sensing device for scanning the broad side of the workpiece for positioning the milling relative to the broad side of the workpiece, and at least one post-processing device, in particular Glue joint knife, for reworking the workpiece in the area of the milled edge, in particular also for removing glue residue, more particularly from the broad side of the workpiece. According to the invention Post-processing device arranged such that the post-processing device at least partially between the first sensing device and the milling device in a view perpendicular to the broad side of the workpiece, ie in a plan view, preferably in one of the milling device downstream in the processing direction area is arranged.

Des Weiteren ist erfindungsgemäß das Verfahren zum Bearbeiten eines plattenförmigen Werkstücks mit zumindest einer Schmal- und einer Breitseite, die bevorzugt zumindest teilweise aus Holz, Holzwerkstoffen, Kunststoffen oder dergleichen bestehen, vorzugsweise mit dem erfindungsgemäßen Bearbeitungsaggregat, vorgesehen, das die Schritte von Aufbringen eines Kantenmaterials an die Schmalseite des Werkstücks, Tasten der Breitseite des Werkstücks durch eine erste Tasteinrichtung und Positionieren der Fräseinrichtung relativ zur Breitseite des Werkstücks, spanendes Bearbeiten, insbesondere Bündigfräsen, des Werkstücks im Bereich der Kante durch eine Fräseinrichtung und Nachbearbeiten des Werkstücks im Bereich der gefrästen Kante, insbesondere auch Entfernen von Leimresten, durch eine Nachbearbeitungseinrichtung, die zumindest abschnittsweise zwischen der ersten Tasteinrichtung und der Fräseinrichtung angeordnet ist, während der spanenden Bearbeitung durch die Fräseinrichtung, vorzugsweise in einem der Fräseinrichtung in Bearbeitungsrichtung nachgelagerten Bereich, umfasst.Furthermore, according to the invention, the method for processing a plate-shaped workpiece with at least one narrow and one broad side, which are preferably at least partially made of wood, wood materials, plastics or the like, preferably provided with the processing unit according to the invention, the steps of applying an edge material the narrow side of the workpiece, keys the broad side of the workpiece by a first sensing device and positioning the milling relative to the broad side of the workpiece, machining, in particular flush milling, the workpiece in the region of the edge by a milling device and reworking of the workpiece in the milled edge, in particular Also removal of glue residues, by a post-processing device, which is at least partially disposed between the first sensing device and the milling device during the machining by the Fräseinrichtun g, preferably in a region downstream of the milling device in the machining direction.

Während der Nachbearbeitung wird die Seite der Nachbearbeitungseinrichtung, die zu der Breitseite des Werkstücks im Bereich der gefrästen Kante zeigt, elastisch bzw. gefedert auf die Oberfläche der Werkstückbreitseite gedrückt, wobei durch die Relativbewegung des Werkstücks und des Bearbeitungsaggregats zueinander Leimreste abgestreift bzw. abgekratzt werden. Bei Änderungen der Oberfläche der Breitseite des Werkstücks bspw. hinsichtlich der Werkstückdicke, der Werkstückparallelität oder der Werkstücklage passt sich die Nachbearbeitungseinrichtung automatisch der Werkstückoberfläche an.During post-processing, the side of the post-processing device which points to the broad side of the workpiece in the area of the milled edge is pressed resiliently onto the surface of the workpiece broadside, glue residues being scraped off or scratched off from one another by the relative movement of the workpiece and the processing unit. For changes in the surface of the broad side of the workpiece, for example, in terms of workpiece thickness, workpiece parallelism or Workpiece position, the post-processing device adapts automatically to the workpiece surface.

Dadurch, dass die Nachbearbeitungseinrichtung zumindest abschnittsweise in dem Bereich zwischen der ersten Tasteinrichtung und der Fräseinrichtung angeordnet ist, erfolgt die Nachbearbeitung durch die Nachbearbeitungseinrichtung unmittelbar nach der spanenden Bearbeitung durch die Fräseinrichtung, nämlich nahezu gleichzeitig. Dies führt zu einer Zeitersparnis, da kein separater Nachbearbeitungsschritt nötig ist.Due to the fact that the post-processing device is arranged at least in sections in the region between the first sensing device and the milling device, post-processing by the post-processing device is performed immediately after the machining by the milling device, namely almost simultaneously. This leads to a time saving, since no separate post-processing step is necessary.

Da sich die Nachbearbeitungseinrichtung nahe der Fräseinrichtung befindet, werden im Falle eines rotierenden Bündigfräsers als Fräseinrichtung automatisch insbesondere Leimreste, die durch die Nachbearbeitungseinrichtung entfernt worden sind, durch die Fräseinrichtung, insbesondere durch die Zähne des Fräsmittels, entfernt und abbefördert. Dadurch kann eine Beeinträchtigung der Bearbeitung durch Leimreste verhindert werden und die Qualität der Bearbeitung erhöht werden.Since the post-processing device is close to the milling device, in the case of a rotary trimming cutter as a milling device, in particular glue residues which have been removed by the post-processing device are removed and removed by the milling device, in particular by the teeth of the milling device. As a result, an impairment of the processing can be prevented by glue residues and the quality of the processing can be increased.

Wenn sich die Nachbearbeitungseinrichtung zwischen der ersten Tasteinrichtung und der Fräseinrichtung befindet, liegt des Weiteren ein Teil der Nachbearbeitungseinrichtung immer auf der Breitseite des Werkstücks auf. Somit kann es nicht vorkommen, dass die Nachbearbeitungseinrichtung die Werkstückoberfläche verlässt, wozu es bei herkömmlichen Nachbearbeitungseinrichtungen bei der Nachbearbeitung von Werkstückecken oder Werkstücken mit kleinen Außenradien kommen kann. Die im Stand der Technik vorgesehenen Aktuatoren zum Ermöglichen eines Wiedereintritts der Nachbearbeitungseinrichtung nach Verlassen der Werkstückoberfläche ohne Anstoßen bzw. Kollision mit dem Werkstück oder der Kante sind somit bei der vorliegenden Erfindung nicht nötig.Furthermore, when the post-processing device is located between the first sensing device and the milling device, a part of the post-processing device is always located on the broad side of the workpiece. Thus, it can not happen that the post-processing device leaves the workpiece surface, which can occur in conventional post-processing devices in the post-processing of workpiece corners or workpieces with small external radii. The prior art actuators for allowing reentry of the post-processor after leaving the workpiece surface without abutting or colliding with the workpiece or edge are thus not necessary in the present invention.

Der Erfindung liegt der Gedanke zugrunde, die spanende Bearbeitung durch die Fräseinrichtung und die Nachbearbeitung durch die Nachbearbeitungseinrichtung in einem Arbeitsgang durchzuführen bzw. zu kombinieren, in unmittelbarer zeitlicher und räumlicher Nähe. Grob gesprochen sind also die Fräseinrichtung und die Nachbearbeitungseinrichtung gleichzeitig im Eingriff mit dem Werkstück, sodass die Bearbeitung und Nachbearbeitung eines Werkstückabschnitts im Wesentlichen gleichzeitig erfolgt.The invention is based on the idea to carry out the machining by the milling device and the post-processing by the post-processing device in one operation or combine, in the immediate temporal and spatial proximity. Roughly speaking, therefore, the milling device and the post-processing device are simultaneously engaged with the workpiece, so that the processing and post-processing of a workpiece section takes place essentially simultaneously.

Vorzugsweise ist die Nachbearbeitungseinrichtung ein Leimfugenmesser (Leimfugenziehklinge), das im Wesentlichen von einer Breitseite des Werkstücks Leimreste entfernen kann. Dazu wird das Leimfugenmesser gegen die Breitseite des Werkstücks gedrückt, die im Bereich der gefrästen Kante liegt. Alternativ ist es auch denkbar, dass die Nachbearbeitungseinrichtung einer Profilziehklinge entspricht, die die Oberfläche der gefrästen Kante glättet. Insbesondere ist unter der Nachbearbeitungseinrichtung keine Tasteinrichtung zu verstehen, die lediglich zur Ausrichtung bspw. der Fräseinrichtung relativ zum Werkstück dient.Preferably, the post-processing device is a glue joint knife (glue joint scraper blade), which can essentially remove glue residues from a broad side of the workpiece. For this, the glue joint knife is pressed against the broad side of the workpiece, which lies in the area of the milled edge. Alternatively, it is also conceivable that the post-processing device corresponds to a profile scraper, which smoothes the surface of the milled edge. In particular, the post-processing device is not to be understood as a sensing device which merely serves to align, for example, the milling device relative to the workpiece.

Besonders vorteilhafte Weiterbildungen der Erfindungen sind in den abhängigen Ansprüchen angegeben.Particularly advantageous developments of the inventions are specified in the dependent claims.

Das Bearbeitungsaggregat kann eine zweite Tasteinrichtung zum Tasten der Schmalseite des Werkstücks zur Positionierung der Fräseinrichtung relativ zur Schmalseite des Werkstücks aufweisen, wobei die Nachbearbeitungseinrichtung in einer Ansicht senkrecht zur Breitseite des Werkstücks, also in einer Draufsicht, zumindest abschnittsweise zwischen der ersten und zweiten Tasteinrichtung der Fräseinheit angeordnet ist. Es ist auch eine Ausführungsform denkbar, die die Merkmale des Oberbegriffs von Anspruch 1 und diese Merkmale aufweist. Durch eine derartige Anordnung kann ebenfalls die unmittelbare Nähe zwischen der Fräseinrichtung und der Nachbearbeitungseinrichtung erreicht werden.The processing unit may have a second sensing device for actuating the narrow side of the workpiece for positioning the milling device relative to the narrow side of the workpiece, wherein the post-processing device in a view perpendicular to the broad side of the workpiece, ie in a plan view, at least partially between the first and second sensing device of the milling unit is arranged. It is also an embodiment conceivable having the features of the preamble of claim 1 and these features. By such an arrangement, the immediate proximity between the milling device and the post-processing device can also be achieved.

Vorzugsweise ist die Fräseinrichtung auf einem nachgiebig gelagerten Tastschlitten angeordnet, und die Nachbearbeitungseinrichtung ist an dem nachgiebig gelagerten Tastschlitten der Fräseinrichtung angeordnet. Durch den Tastschlitten der Fräseinrichtung, der eine nachgiebige Lagerung der Fräseinrichtung relativ zu weiteren Bauteilen, insbesondere feststehenden Bauteilen des Bearbeitungsaggregats wie einem Tragrahmen, ermöglicht, kann die Position der Fräseinrichtung dem Werkstück flexibel angepasst werden. Auch kann sich die Nachbearbeitungseinrichtung entsprechend mit der Fräseinrichtung mitbewegen. Eine Federkraft im Falle eines durch eine Feder gelagerten Tastschlittens erzeugt die Bearbeitungskraft für die Nachbearbeitungseinrichtung.Preferably, the milling device is arranged on a resiliently mounted scanning carriage, and the post-processing device is arranged on the resiliently mounted scanning carriage of the milling device. The position of the milling device can be flexibly adapted to the workpiece by the scanning carriage of the milling device, which permits a resilient mounting of the milling device relative to other components, in particular stationary components of the machining assembly such as a support frame. Also, the post-processing device can move along with the milling device accordingly. A spring force in the case of a spring-loaded Tastschlittens generates the processing power for the post-processing device.

Weiter vorzugsweise ist die Nachbearbeitungseinrichtung auf einem nachgiebig gelagerten Tastschlitten der Nachbearbeitungseinrichtung angeordnet, der vorzugsweise zusätzlich zum Tastschlitten der Fräseinrichtung vorgesehen ist und der weiter vorzugsweise über ein flexibles Lager an einem Tragrahmen des Bearbeitungsaggregats vorgesehen ist. Wenn ein zum Tastschlitten der Fräseinrichtung separater Tastschlitten der Nachbearbeitungseinrichtung vorgesehen ist, der beispielsweise flexibel am Tragrahmen angeordnet ist, kann die Bearbeitungskraft der Nachbearbeitungseinrichtung unabhängig von der Einstellung der Fräseinrichtung eingestellt werden.Further preferably, the post-processing device is arranged on a resiliently mounted Tastschlitten the post-processing device, which is preferably provided in addition to the Tastschlitten the milling device and is further preferably provided via a flexible bearing on a supporting frame of the processing unit. If a scanning carriage of the milling device is provided with a separate scanning carriage of the post-processing device, which is arranged, for example, flexibly on the supporting frame, the machining power of the post-processing device can be adjusted independently of the setting of the milling device.

Eine flexible Lagerung der Nachbearbeitungseinrichtung kann sich zwischen dem Tastschlitten der Nachbearbeitungseinrichtung und der Nachbearbeitungseinrichtung oder zwischen dem Tastschlitten der Fräseinrichtung und der Nachbearbeitungseinrichtung befinden.A flexible mounting of the post-processing device can be located between the scanning carriage of the post-processing device and the post-processing device or between the scanning carriage of the milling device and the post-processing device.

Vorzugsweise weist die Nachbearbeitungseinrichtung keine eigene Tasteinrichtung zum Tasten der Breitseite des Werkstücks auf, sondern ist gleichzeitig Nachbearbeitungseinrichtung im Sinne von Werkzeug und Tasteinrichtung bzw. Tastschuh. Dies vereinfacht den Aufbau des Bearbeitungsaggregats und ermöglicht gleichzeitig eine höhere Präzision der Nachbearbeitung, da keine getrennte Tasteinrichtung zur Positionierung der Nachbearbeitungseinrichtung vorgesehen sein muss.Preferably, the post-processing device does not have its own scanning device for scanning the broad side of the workpiece, but is at the same time a post-processing device in the sense of tool and sensing device or contact shoe. This simplifies the structure of the processing unit and at the same time allows a higher precision of the post-processing, since no separate sensing device must be provided for positioning the post-processing device.

Des Weiteren kann eine weitere Nachbearbeitungseinrichtung, vorzugsweise eine Profilziehklinge, zum Nachbearbeiten des Bereichs der gefrästen Kante vorgesehen sein, wobei diese weitere Nachbearbeitungseinrichtung, die zusätzlich zur Nachbearbeitungseinrichtung der vorhergehenden Ausführungsformen vorgesehen sein kann, in Bearbeitungsrichtung nachgelagert zur Fräseinrichtung und vorzugsweise zur Nachbearbeitungseinrichtung der vorhergehenden Ausführungsformen angeordnet ist.Furthermore, a further post-processing device, preferably a profiled scraper, can be provided for reworking the area of the milled edge, wherein this further post-processing device, which may be provided in addition to the post-processing device of the preceding embodiments, downstream arranged in the processing direction to the milling device and preferably to the post-processing device of the previous embodiments is.

Es ist aber auch denkbar, dass das Bearbeitungsaggregat frei von einer derart weiteren Nachbearbeitungseinrichtung ist, da eine solche auf Grund eines speziellen Bündigfräswerkzeugs als Fräseinrichtung nicht nötig ist. Dies ist insbesondere der Fall, wenn durch eine spezielle Schneidengeometrie der Fräseinrichtung eine bessere Oberflächenqualität als mit herkömmlichen Bündigfräsern bereits bei der spanenden Bearbeitung erreicht werden kann.But it is also conceivable that the processing unit is free of such a further post-processing device, since such is not necessary due to a special flush milling as a milling device. This is the case in particular when a better surface quality than with conventional trimming cutters can already be achieved during the machining by a special cutting geometry of the milling device.

Weitere Merkmale und Vorteile der Erfindung werden anhand der nachfolgenden ausführlichen Beschreibung noch näher ersichtlich werden.Other features and advantages of the invention will become more apparent from the following detailed description.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

  • Fig. 1 zeigt eine perspektivische Ansicht eines erfindungsgemäßen Bearbeitungsaggregats mit einem Werkstück; Fig. 1 shows a perspective view of a processing unit according to the invention with a workpiece;
  • Fig. 2 zeigt eine Draufsicht auf das erfindungsgemäße Bearbeitungsaggregat; und Fig. 2 shows a plan view of the processing unit according to the invention; and
  • Fig. 3 zeigt eine perspektivische Ansicht des erfindungsgemäßen Bearbeitungsaggregats. Fig. 3 shows a perspective view of the processing unit according to the invention.
Ausführliche Beschreibung bevorzugter AusführungsformenDetailed description of preferred embodiments

Bevorzugte Ausführungsformen der vorliegenden Erfindung werden nachfolgend ausführlich unter Bezugnahme auf die begleitenden Zeichnungen beschrieben.Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

Figur 1 zeigt eine Ausführungsform des erfindungsgemäßen Bearbeitungsaggregats zur Bearbeitung von plattenförmigen Werkstücken 9, die eine Schmalseite 10a und eine Breitseite 10b aufweisen, die vorzugsweise senkrecht zueinander liegen. In Figur 1 liegt die Breitseite 10b nach unten orientiert und ist nicht sichtbar, während die Schmalseite 10a des Werkstücks 9 weg von der Betrachtungsebene nach rechts hinten orientiert ist. FIG. 1 shows an embodiment of the processing unit according to the invention for processing plate-shaped workpieces 9, which have a narrow side 10a and a broad side 10b, which are preferably perpendicular to each other. In FIG. 1 If the broad side 10b is oriented downward and is not visible, while the narrow side 10a of the workpiece 9 is oriented away from the viewing plane to the right rear.

An dem Werkstück 9 ist auf der Schmalseite 10a eine Kante in Form eines Kantenmaterials 11 mittels einer Leimschicht aufgebracht. Die Leimschicht bildet zwischen der Schmalseite 10a des Werkstücks 9 und dem aufgebrachten Kantenmaterial 11 eine Leimfuge 12 aus.On the workpiece 9, an edge in the form of an edge material 11 is applied by means of a glue layer on the narrow side 10a. The glue layer forms a glue joint 12 between the narrow side 10 a of the workpiece 9 and the applied edge material 11.

Die Bearbeitung des Werkstücks 9 erfolgt unter einer Relativbewegung zu dem Bearbeitungsaggregat. In den gezeigten Ausführungsformen wird das Aggregat während der Bearbeitung entlang der Bearbeitungsrichtung B relativ zum Werkstück 9 bewegt. Alternativ sind auch Durchlaufmaschinen denkbar, in denen die Werkstücke 9 relativ zum Bearbeitungsaggregat bewegt werden.The machining of the workpiece 9 takes place under a relative movement to the processing unit. In the illustrated embodiments, the aggregate is moved relative to the workpiece 9 along the machining direction B during machining. Alternatively, continuous machines are conceivable in where the workpieces 9 are moved relative to the processing unit.

Während der Bearbeitung kommt zunächst die Fräseinrichtung 1 mit der in Figur 1 unten angedeuteten Kante 11, die zuvor auf die Schmalseite 10a des Werkstücks 9 aufgebracht worden, in Eingriff und fräst diese bündig mit der Werkstückoberfläche der Breitseite 10b. Die Fräseinrichtung 1 weist ein rotierbares Fräsmittel 1a auf. Unmittelbar nach dieser spanenden Bearbeitung durch die Fräseinrichtung 1 bearbeitet die Nachbearbeitungseinrichtung 5 das Werkstück 9 im Bereich der gefrästen Kante. Die Nachbearbeitungseinrichtung 5 weist ein Leimfugenmesser auf, das an der Breitseite des Werkstücks 10b anliegt und dadurch während der Bewegung des Bearbeitungsaggregats in die Bearbeitungsrichtung B Leimreste, die aus der Leimfuge 12 austreten, entfernt.During processing, first comes the milling device 1 with in FIG. 1 below indicated edge 11, which has been previously applied to the narrow side 10a of the workpiece 9, in engagement and milled flush with the workpiece surface of the broad side 10b. The milling device 1 has a rotatable milling means 1a. Immediately after this machining by the milling device 1, the post-processing device 5 processes the workpiece 9 in the area of the milled edge. The post-processing device 5 has a glue joint knife which rests against the broad side of the workpiece 10b and thereby removes glue residues emerging from the glue joint 12 during the movement of the processing unit in the processing direction B.

Figur 1 zeigt des Weiteren eine erste Tasteinrichtung 2 zum Tasten der Breitseite 10b des Werkstücks 9. Die erste Tasteinrichtung 2 drückt folglich von unten gegen die Breitseite 10b des Werkstücks und kann so die Fräseinrichtung 1 relativ zu der Breitseite 10b des Werkstücks 9 positionieren. Des Weiteren ist eine zweite Tasteinrichtung 3 zum seitlichen Tasten der Schmalseite 10a des Werkstücks 9 vorgesehen, mittels derer die Fräseinheit 1 relativ zum Werkstück 9 positioniert werden kann. FIG. 1 The first sensing device 2 thus presses from below against the broad side 10b of the workpiece and can thus position the milling device 1 relative to the broad side 10b of the workpiece 9. Furthermore, a second sensing device 3 is provided for laterally pressing the narrow side 10a of the workpiece 9, by means of which the milling unit 1 can be positioned relative to the workpiece 9.

Damit die Nachbearbeitung des Werkstücks 9 unmittelbar nach der spanenden Bearbeitung des Werkstücks erfolgen kann, ist die Nachbearbeitungseinrichtung 5 unmittelbar nachgelagert zur Fräseinrichtung 1 angeordnet, und zwar zumindest abschnittsweise in einem Bereich, der im Fräszeitpunkt zwischen der ersten Tasteinrichtung 2 und der Fräseinrichtung 1 liegt.In order for the post-processing of the workpiece 9 to take place immediately after the machining of the workpiece, the post-processing device 5 is arranged immediately downstream of the milling device 1, at least in sections in a region which lies between the first sensing device 2 and the milling device 1 at the time of milling.

Die Nachbearbeitungseinrichtung 5 ist, wie insbesondere aus Figur 2 ersichtlich, in der Ansicht senkrecht zur Breitseite 10b des Werkstücks 9 zumindest abschnittsweise zwischen der ersten Tasteinrichtung 2 und der Fräseinrichtung 1 angeordnet. Des Weiteren ist die Nachbearbeitungseinrichtung 5 zumindest abschnittsweise zwischen der ersten Tasteinrichtung 2 und der zweiten Tasteinrichtung 3 angeordnet.The post-processing device 5 is, as in particular from FIG. 2 seen in the view perpendicular to the broadside 10 b of the workpiece 9 at least partially disposed between the first sensing device 2 and the milling device 1. Furthermore, the post-processing device 5 is arranged at least in sections between the first sensing device 2 and the second sensing device 3.

In Figur 2 ist auch der Punkt 5a sichtbar, in dem die Nachbearbeitungseinrichtung 5 in Bearbeitungsrichtung B betrachtet mit dem Werkstück 9 direkt nach der Bearbeitung durch die Fräseinrichtung 1 derart in Kontakt kommt, dass die Leimreste an der Breitseite 10b des Werkstücks durch die Nachbearbeitungseinrichtung 5 entfernt werden können.In FIG. 2 is also the point 5a visible in which the post-processing device 5 viewed in the machine direction B comes into contact with the workpiece 9 directly after processing by the milling device 1 such that the glue residue on the broad side 10b of the workpiece can be removed by the post-processing device 5.

Figur 3 zeigt, dass das die Nachbearbeitungseinrichtung 5 bzw. das Leimfugenmesser einen der Fräseinrichtung 1 nachgelagerten gebogenen Abschnitt aufweist, der sich zumindest abschnittsweise um die Fräseinrichtung 1 herum erstreckt, wodurch beim Schwenken des Bearbeitungsaggregats um bspw. einen Rand des Werkstücks 9 immer zufriedenstellend Leimreste durch Kontakt zwischen der Werkstückoberfläche und dem Leimfugenmesser 5 entfernt werden können. FIG. 3 shows that the post-processing device 5 or the glue joint knife has a bent portion downstream of the milling device 1, which extends at least partially around the milling device 1, whereby upon pivoting of the processing unit to, for example, an edge of the workpiece 9 always satisfactory glue residues by contact between the workpiece surface and the glue joint knife 5 can be removed.

Insbesondere aus Figur 1 und Figur 3 ist ersichtlich, dass die Fräseinrichtung 1 auf dem nachgiebig gelagerten Tastschlitten 4 angeordnet ist und somit senkrecht zur Bearbeitungsrichtung und zu einem Tragrahmen 13 verschiebbar ist. Die Nachbearbeitungseinrichtung 5 ist auf dem nachgiebig gelagerten Tastschlitten 7 der Nachbearbeitungseinrichtung 5 angeordnet, wobei der nachgiebig gelagerte Tastschlitten 7 über das flexible Lager 8, das eine Feder sein kann, am Tragrahmen 13 senkrecht zur Bearbeitungsrichtung B verschiebbar ist. Über die Elemente 14 und 15, wie in Figur 2 gezeigt, sind die Tastschlitten 4 und 7 senkrecht zur Bearbeitungsrichtung verschiebbar zum Tragrahmen 13 gelagert.In particular from FIG. 1 and FIG. 3 It can be seen that the milling device 1 is arranged on the resiliently mounted scanning carriage 4 and is thus displaceable perpendicular to the machining direction and to a support frame 13. The post-processing device 5 is arranged on the resiliently mounted Tastschlitten 7 of the post-processing device 5, wherein the resiliently mounted Tastschlitten 7 via the flexible bearing 8, which may be a spring on the support frame 13 perpendicular to the machining direction B is displaceable. About the elements 14 and 15, as in FIG. 2 shown, the scanning carriage 4 and 7 are mounted perpendicular to the machining direction displaceable to the support frame 13.

Darüber hinaus ist die Nachbearbeitungseinrichtung 5 über die flexible Lagerung 6 auf dem Tastschlitten 7 der Nachbearbeitungseinrichtung 5 angeordnet.In addition, the post-processing device 5 is arranged on the flexible carriage 6 on the Tastschlitten 7 of the post-processing device 5.

Alternativ kann in einer nicht gezeigten Ausführungsform die Nachbearbeitungseinrichtung 5 direkt auf dem Tastschlitten 4 der Fräseinrichtung angeordnet sein, wobei dann die flexible Lagerung 6 an dem Tastschlitten 4 der Fräseinrichtung 1 angeordnet ist.Alternatively, in a not-shown embodiment, the post-processing device 5 can be arranged directly on the scanning carriage 4 of the milling device, in which case the flexible mounting 6 is arranged on the scanning carriage 4 of the milling device 1.

Im Übrigen ist die Nachbearbeitungseinrichtung 5 frei von einer Tasteinrichtung zum Tasten der Breitseite 10b des Werkstücks 9, da die Nachbearbeitungseinrichtung 5 durch die flexible Lagerung 6 die Funktion einer Tasteinrichtung selbst übernehmen kann.Incidentally, the post-processing device 5 is free of a sensing device for actuating the broad side 10b of the workpiece 9, since the post-processing device 5 can take over the function of a sensing device itself by the flexible support 6.

Auch wenn dies in den beigefügten Zeichnungen nicht dargestellt ist, kann das Bearbeitungsaggregat eine weitere Nachbearbeitungseinrichtung aufweisen, die zusätzlich zur Nachbearbeitungseinrichtung 5 vorgesehen ist und insbesondere als Profilziehklinge ausgestaltet sein kann.Although this is not shown in the accompanying drawings, the processing unit may have a further post-processing device, which is provided in addition to the post-processing device 5 and in particular may be configured as a profile scraper.

Claims (8)

  1. Machining unit for machining panel-like workpieces (9) having at least one narrow side (10a) and a broad side (10b) which preferably consist at least partly of wood, derived timber products, plastics or the like, having a milling device (1) with a milling means (1a) for machining, in particular flush milling, of the workpiece in the region of an edge (11) on the narrow side of the workpiece, a first scanning device (2) for scanning the broad side of the workpiece for positioning of the milling device relative to the broad side of the workpiece and at least one finishing device (5), in particular glue line knife, for finishing the workpiece in the region of the milled edge (11), in particular also for removing glue residues, characterised in that the finishing device (5), in a view vertical to the broad side of the workpiece, is arranged at least in sections between the first scanning device (2) and the milling device (1).
  2. Machining unit according to one of the preceding claims, which has a second scanning device (3) for scanning the narrow side of the workpiece for positioning the milling device relative to the narrow side of the workpiece, wherein the finishing device (5), in a view vertical to the broad side of the workpiece, is arranged at least in sections between the first (2) and second (3) scanning device of the milling device.
  3. Machining unit according to one of the preceding claims, in which the milling device (1) is arranged on a flexibly supported scanning carriage (4) and the finishing device (5) is arranged on the flexibly supported scanning carriage (4) of the milling device.
  4. Machining unit according to one of the preceding claims, in which the finishing device (5) is arranged on a flexibly supported scanning carriage (7) of the finishing device (5) which is preferably provided in addition to the scanning carriage (4) of the milling device and furthermore is preferably attached to a supporting frame (13) via a flexible support (8).
  5. Machining unit according to one of the preceding claims, in which the finishing device (5) is arranged on the scanning carriage (4) of the milling device (1) and/or the scanning carriage (7) of the finishing device (5) via a flexible support (6).
  6. Machining unit according to one of the preceding claims, in which the finishing device (5) is free of a scanning device for scanning the broad side of the workpiece.
  7. Machining unit according to one of the preceding claims, which has a further finishing device, preferably a profile scraper, for finishing the region of the milled edge, in particular an applied edge material, wherein the further finishing device is supported downstream of the milling device (1) and preferably downstream of the finishing device (5).
  8. Method for machining a panel-like workpiece (9) having at least one narrow side (10a) and a broad side (10b) which preferably consist at least partly of wood, derived timber products, plastics or the like, preferably using the machining unit according to one of the preceding claims, which comprises the following steps:
    applying an edge material (11) to the narrow side (10a) of the workpiece,
    scanning the broad side of the workpiece with a first scanning device (2) and positioning the milling device relative to the broad side of the workpiece (9),
    machining, in particular flush milling, of the workpiece in the region of the edge (11) with the milling means (1a) of the milling device (1),
    characterised by finishing the workpiece in the region of the milled edge, in particular also removal of size residues, during machining with the milling device (1) with a finishing device (5) which is arranged at least in sections between the first scanning device (2) and the milling device (1).
EP16180752.4A 2015-07-27 2016-07-22 Machining unit for processing plate-like workpieces and method for machining a plate-like workpiece Active EP3124191B1 (en)

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DE102015214174.8A DE102015214174A1 (en) 2015-07-27 2015-07-27 Processing unit for processing plate-shaped workpieces and method for processing a plate-shaped workpiece

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IT202000019639A1 (en) * 2020-08-07 2022-02-07 Scm Group Spa WORKING UNIT FOR ADJUSTING THE FINISHING OF WOODEN PANELS AND SIMILAR SURFACES, AND RELATIVE MACHINE FOR PROCESSING WOODEN PANELS AND SIMILAR.

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DE3732810C1 (en) * 1987-09-29 1989-04-13 Hornberger Maschbau Gmbh Device for working the edges of continuously moving plate-like workpieces
PL1782931T3 (en) * 2005-11-07 2008-07-31 Brandt Kantentechnik Gmbh Edge milling machine
ITBO20060188A1 (en) * 2006-03-16 2007-09-17 Biesse Spa TRIMMING-SCRAPER GROUP FOR FINISHING WOOD COMPONENTS OR SYMBOLS
DE102007029918B4 (en) 2007-06-28 2018-09-06 Homag Holzbearbeitungssysteme Ag processing unit
DE102010023547B4 (en) * 2010-06-11 2013-05-08 Ima Klessmann Gmbh Holzbearbeitungssysteme Method and processing unit for flush trimming and / or removal of an edge band

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PL3124191T3 (en) 2018-04-30
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