EP1479494B1 - Edge-banding apparatus for a program controlled machine - Google Patents

Edge-banding apparatus for a program controlled machine Download PDF

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Publication number
EP1479494B1
EP1479494B1 EP04006305A EP04006305A EP1479494B1 EP 1479494 B1 EP1479494 B1 EP 1479494B1 EP 04006305 A EP04006305 A EP 04006305A EP 04006305 A EP04006305 A EP 04006305A EP 1479494 B1 EP1479494 B1 EP 1479494B1
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EP
European Patent Office
Prior art keywords
band
edging band
edge
edging
edge band
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EP04006305A
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German (de)
French (fr)
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EP1479494A2 (en
EP1479494A3 (en
Inventor
Martin Ing. Rose (Grad.)
Michael SCHÜRMANN
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IMA Klessmann Holzbearbeitungssysteme GmbH
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IMA Klessmann Holzbearbeitungssysteme GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G5/00—Machines or devices for working mitre joints with even abutting ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
    • B27D5/003—Other working of veneer or plywood specially adapted to veneer or plywood securing a veneer strip to a panel edge

Definitions

  • the invention relates to a Kantenanleimaggregat for a program-controlled machine for approaching an edge strip on narrow bends or corner edges away successive narrow sides of a plate-shaped workpiece made of a wood substitute.
  • the gluing unit is provided with a pressure roller for pressing the edge band to the narrow sides of the plate and with a supply line for the edge band located in front of the pressure roller on which a suspension device for cutting the edge band is arranged. Furthermore, cuts are made for the purpose of cross-sectional weakening with the gluing unit on which the narrow sides of the sheet subsequently contact the edge band at those points which are subjected to strong bending when starting.
  • edge banding unit is received on a rotary or pivot axis of a processing unit of the program-controlled machine.
  • Particularly problematic is the coating of the narrow sides of the plate over the corners of the plate, which must be avoided if not a particularly thin edge band is provided.
  • Plate-shaped workpieces of the type in question are used primarily in furniture. As wood substitutes come here especially chipboard materials into consideration, which have an inner coarse structure. This inner structure is usually cut on the narrow sides of the plate-shaped workpieces and must therefore be laminated with the Ceileimenden edge band. However, only more stable, thicker edge bands are suitable for this, which for the described reasons can not easily be guided around narrow plate corner edges or bends of the narrow sides of the plate.
  • the document DE 87 01 376 U1 describes a Vorrichtng for attaching an edge strip to plate-shaped workpieces, with which at predetermined locations a notch or cutout is made from the edge region of the edge band. These digits become machine detected, and the notches are attached by means of a punch, which is integrated in the supply device for the edge band.
  • the purpose of this measure is to be able to apply the edges of the edge band provided with the cutouts without rotting around softened or rounded workpiece corners which result in correspondingly softened or rounded workpiece edges between their narrow sides and broad sides. A satisfactory result is achieved here only with the use of thin edge bands.
  • the invention has for its object to provide a Kantenanleimaggregat with the features mentioned, in which the cuts for the cross-sectional weakening of the edge strip is made at the same time by machine.
  • a Nutsäge on an deliverable in the direction towards the edge band and transversely to the longitudinal direction of the edge band movable carriage is arranged, which has a circular saw blade whose plane of rotation is perpendicular to the longitudinal direction of the edge band, the machine program activates the Nutsäge for cutting the edge band and the Nutsäge one hand and the entire Kantenanleimaggregat on the other hand controls so that during operation of the Nutsäge the passage of the edge band on the grooving saw is stopped.
  • Kantenanleimaggregat invention is essential to be able to use the program control of the associated machine not only for ds matching cutting the edge band, but also to make a Cross-sectional weakening of the band inside at those points that must be deformed when approaching the edge band to the narrow sides of the plate over sharp corner edges or tight Eckrundungen away. It is expedient to provide at least one V-shaped incision at such a point, whose flanks superimpose on bending the edge band and thus form a miter joint which ends in front of the outer corner edge of the edge band.
  • edge band is preferably made of a plastic which has a certain elasticity with sufficient cross-sectional weakening
  • a clean corner edge on the outside of the edge band can also be achieved in the panel corner area in the manner described.
  • the control of the Nutsäge done in an analogous manner as in the Kantenanleimaggregat Any existing cutting device that accurately abllindt the edge band so that at the joint of the relevant narrow plate side, come together at the beginning of the tape and the tape end, a gap-free tape joint is created.
  • those locations on the plate circumference are programmed at which a corner edge or a strong bend exists.
  • overlapping areas of the edge band which are calculated based on the development of the edge band, be made in advance in the Kantenanleimaggregat for the purpose of cross-sectional weakening the cuts in the edge band.
  • Fig. 1 shows a plate-shaped workpiece 1, which is processed at stationary clamping on a working table of a program-controlled woodworking machine along its circumference.
  • the workpiece 1 has, among other things, two narrow sides 2 and 3, which adjoin one another via a plate corner 4 and accordingly form a corner edge perpendicular to the plate plane at the corner 4.
  • An essential processing step is the gluing of an edge band 5 on the narrow plate sides 2 and 3 across the plate corner 4 of time, which is done by means of a Kantenanleimaggregates 6.
  • the Kantenanleimaggregat is added to a pivot axis of a processing unit of a program-controlled machine.
  • the edge band 5 is approached by means of a pressure roller 8 and optionally a pre-pressure roller 7 to the narrow side panels 2 and 3.
  • the edge band 5 is supplied from a supply through the Kantenanleimaggregat through to the pinch roller 8 and passes through a feed line 9, which holds with transport and guide rollers 10, 11 and 12, the edge band in tangential Ausdraum to the pinch roller 8.
  • a Beleimvorutter is arranged, which consists essentially of a glue applicator roll 13 and a glue reservoir 14.
  • a chop saw 15 with a circular saw blade 16 is arranged on the edge banding unit 6, which can also be referred to as a jigsaw.
  • This chop saw 15 is controlled by the machine program so that the edge band 5 is severed at a suitable location in order to make it possible to connect the tape end thus formed on the circumference of the plate-shaped workpiece 1 with gap-free shock to the already glued tape beginning. Otherwise, the machine program controls the circulation and the pivoting of the edge banding unit 6 around the respective plate-shaped workpiece 1 around, whose outline shape is stored accordingly in the machine program. Since the chop saw 15 only completely cuts through the edge band 5, a sufficient feed path of the chop saw 15 is sufficient to completely pass through the cross section of the edge band 5 with its circular saw blade 16.
  • a Nutsäge 17 is also arranged, which is also in the direction of passage of the edge strip 5 in front of the gluing device 13, 14.
  • the Nutsäge 17 has a circular saw blade 18 and is arranged on a carriage 25, which is deliverable not only in the direction of the continuous edge band 5 out but also in the vertical direction, ie in the transverse direction of the edge band 5. Because with the circular saw blade 18 of the Nutsäge 17, the edge band 5 is only cut on the side, but not cut through, with the edge band 5 is adhered to the narrow side surfaces 2, 3 of the plate-shaped workpiece 1.
  • the Nutsäge 17 Since, based on the passage direction of the edge band 5, the Nutsäge 17 is fixedly mounted with its circular saw blade 18 on the carriage 25, a bleeding of the mounted during a cycle of the Nutsäge incision must be prevented. For this purpose, the feed of the entire Kantenanleimaggregates is stopped by the machine program, which temporarily the passage of the edge strip 5, which deducted from an edgeband supply is stopped.
  • Fig. 2 shows a cross section through the peripheral portion of the saw blade 18 of the Nutsäge 17, and it can be seen here that the saw teeth have blades 19 which converge outwardly V-shaped, so are at an acute angle to each other and converge at the outer periphery of the circular saw blade 18 pointed.
  • FIGS. 3 and 4 The grooves or cuts 20 and 21 to be made with such a circular saw blade 18 in the relevant side of the edge band 5 are in the FIGS. 3 and 4 shown schematically.
  • Fig. 3 is only a single miter notch 20 with a V-angle of 90 ° available, which makes it possible to apply the edge band 5 around a 90 ° corner of the plate-shaped workpiece 1 so that in the diagonal direction to the plate corner a gapless miter joint 23 is formed, the is closed in the outer corner of the edge band 5.
  • Fig. 4 illustrates that at the respective plate corner edge or bend around the edge band to be moved around it may also have two or more cuts 21 on its inner side to form a blunt corner of the edge band 5 with corresponding two or more miter joints 24.

Description

Die Erfindung bezieht sich auf ein Kantenanleimaggregat für eine programmgesteuerte Maschine zum Anfahren eines Kantenbandes an über enge Biegungen oder Eckkanten hinweg aneinander anschließende Schmalseiten eines plattenförmigen Werkstücks aus einem Holzersatzstoff. Das Anleimaggregat ist versehen mit einer Andruckrolle zum Anpressen des Kantenbandes an die Plattenschmalseiten und mit einer vor der Andruckrolle befindlichen Zuführstrecke für das Kantenband, an der eine Abhängvorrichtung zum Durchtrennen des Kantenbandes angeordnet ist. Des weiteren werden mit dem Anleimaggregat an der die Plattenschmalseiten im nachhinein kontaktierenden Seite des Kantenbandes an denjenigen Stellen, die beim Anfahren starker Biegung unterworfen werden, Einschnitte zwecks Querschnittsschwächung vorgenommen.The invention relates to a Kantenanleimaggregat for a program-controlled machine for approaching an edge strip on narrow bends or corner edges away successive narrow sides of a plate-shaped workpiece made of a wood substitute. The gluing unit is provided with a pressure roller for pressing the edge band to the narrow sides of the plate and with a supply line for the edge band located in front of the pressure roller on which a suspension device for cutting the edge band is arranged. Furthermore, cuts are made for the purpose of cross-sectional weakening with the gluing unit on which the narrow sides of the sheet subsequently contact the edge band at those points which are subjected to strong bending when starting.

Mit Kantenanleimaggregaten, wie sie aus dem Dokument DE 101 24 695 A1 bekannt sind, können plattenförmige Werkstücke um ihren gesamten Umfang herum bekantet werden. Dazu wird das Kantenanleimaggregat an einer Dreh- oder Schwenkachse einer Bearbeitungseinheit der programmgesteuerten Maschine aufgenommen. Je dicker das Kantenband ist, umso schwieriger ist es, mit dem Kantenband um enge Biegungen herumzukommen, unter denen die Plattenschmalseiten aneinander anschließen. Besonders problematisch ist die Beschichtung der Plattenschmalseiten über Platteneckkanten hinweg, die man vermeiden muß, wenn nicht ein besonders dünnes Kantenband vorgesehen wird.With Kantenanleimaggregaten, as from the document DE 101 24 695 A1 plate-shaped workpieces can be edged around their entire circumference. For this purpose, the edge banding unit is received on a rotary or pivot axis of a processing unit of the program-controlled machine. The thicker the edge band is, the more difficult it is to get around with the edge band around tight bends, under which the narrow sides of the panel adjoin one another. Particularly problematic is the coating of the narrow sides of the plate over the corners of the plate, which must be avoided if not a particularly thin edge band is provided.

Plattenförmige Werkstücke der in Rede stehenden Art werden vornehmlich im Möbelbau eingesetzt. Als Holzersatzstoffe kommen hierfür vor allem Spanplattenmaterialien in Betracht, die eine innere Grobstruktur aufweisen. Diese innere Struktur wird in der Regel an den Schmalseiten der plattenförmigen Werkstücke angeschnitten und muß dementsprechend mit dem darauf anzuleimenden Kantenband kaschiert werden. Dafür eignen sich jedoch nur stabilere, dickere Kantenbänder, die aus den geschilderten Gründen nicht ohne weiteres um enge Platteneckkanten oder Biegungen der Plattenschmalseiten herumgeführt werden können.Plate-shaped workpieces of the type in question are used primarily in furniture. As wood substitutes come here especially chipboard materials into consideration, which have an inner coarse structure. This inner structure is usually cut on the narrow sides of the plate-shaped workpieces and must therefore be laminated with the anzuleimenden edge band. However, only more stable, thicker edge bands are suitable for this, which for the described reasons can not easily be guided around narrow plate corner edges or bends of the narrow sides of the plate.

Es ist grundsätzlich bekannt, an denjenigen Stellen eines Kantenmaterials, die einer stärkeren Biegung unterworfen werden, von der Innenseite her eine Querschnittsschwächung vorzunehmen, indem quer zur Bandlängsrichtung vorzugsweise mehrere Einschnitte vorgenommen werden. Für diese zusätzliche Maßnahme muß bislang ein separater Bearbeitungsgang vorgesehen werden.It is generally known to make a cross-sectional weakening from the inside at those points of an edge material which are subjected to a greater bending, by making a plurality of cuts transversely to the longitudinal direction of the strip. For this additional measure so far a separate machining operation must be provided.

Das Dokument DE 87 01 376 U1 beschreibt eine Vorrichtng zum Anbringen eines Kantenbandes an plattenförmige Werkstücke, mit der an vorbestimmten Stellen eine Ausklinkung oder ein Ausschnitt aus dem Randbereich des Kantenbandes vorgenommen wird. Diese Stellen werden maschinell erfaßt, und es werden die Ausklinkungen mittels einer Stanze angebracht, die in die Zuführvorrichtung für das Kantenband integriert ist. Zweck dieser Maßnahme ist, die mit den Ausschnitten versehenen Randabschnitte des Kantenbandes verwerfungsfrei um gesoftete oder gerundete Werkstückecken herum auftragen zu können, die sich bei entsprechend gesofteten oder gerundeten Werkstückkanten zwischen deren Schmalseiten und Breitseiten ergeben. Ein zufriedenstellendes Ergebnis erreicht man hiermit nur bei Verwendung von dünnen Kantenbändern.The document DE 87 01 376 U1 describes a Vorrichtng for attaching an edge strip to plate-shaped workpieces, with which at predetermined locations a notch or cutout is made from the edge region of the edge band. These digits become machine detected, and the notches are attached by means of a punch, which is integrated in the supply device for the edge band. The purpose of this measure is to be able to apply the edges of the edge band provided with the cutouts without rotting around softened or rounded workpiece corners which result in correspondingly softened or rounded workpiece edges between their narrow sides and broad sides. A satisfactory result is achieved here only with the use of thin edge bands.

Aus dem Dokument DE 197 41 163 A1 ist eine im Durchlauf arbeitende Holzbearbeitungsmaschine mit einem Kantenanleimaggregat bekannt, welches auf die Schmalflächenseiten von quadratischen oder rechteckigen Werkstücken einen Kantenbandabschnitt aufbringt. Hierbei wird ein Überstand des Kantenbandabschnittes bezogen auf die Durchlaufrichtung sowohl an der vorderen als auch an der rückwärtigen Eckkante des jeweiligen Werkstücks vorgesehen. Dieser Überstand wird mit Hilfe einer Kappsäge abgetrennt, deren Zustellung mittels einer Steuereinheit erfolgt. Die mit den Werkstücken mitlaufende Kappsäge wird exakt in einer Flucht mit den senkrecht zur Durchlaufrichtung stehenden vorderen und hinteren Schmalseitenflächen der Werkstücke ausgerich-tet, um das Kantenband mit diesen Schmalseitenflächen bündig abschneiden zu können. Hierbei regelt die Steuereinrichtung den Transport des Kantenbandes derart, daß dessen Transportgeschwindigkeit der Vorschubgeschwindigkeit des Werkstückes innerhalb vorgegebener Toleranzgrenzen entspricht.From the document DE 197 41 163 A1 is a working in progress woodworking machine with a Kantenanleimaggregat known which applies an edge band portion on the narrow sides of square or rectangular workpieces. In this case, a projection of the edge band portion is provided with respect to the passage direction both at the front and at the rear corner edge of the respective workpiece. This supernatant is separated by means of a chop saw, the delivery is carried out by means of a control unit. The miter with the workpieces chop saw is aligned exactly aligned with the perpendicular to the direction of passage front and rear narrow side surfaces of the workpieces-tet in order to cut off the edge band flush with these narrow side surfaces can. Here, the control device controls the transport of the edge band such that its transport speed of the feed rate of the workpiece within predetermined tolerance limits.

Der Erfindung liegt die Aufgabe zugrunde, ein Kantenanleimaggregat mit den eingangs genannten Merkmalen zu schaffen, bei dem die Einschnitte für die Querschnittsschwächung des Kantenbandes zugleich maschinell vorgenommen wird.The invention has for its object to provide a Kantenanleimaggregat with the features mentioned, in which the cuts for the cross-sectional weakening of the edge strip is made at the same time by machine.

Diese Aufgabe wird bei einem derartigen Kantenanleimaggregat dadurch gelöst, daß an der Zuführstrecke an derjenigen Seite, zu der hin die die Plattenschmalseiten im nachhinein kontaktierende Seite des Kantenbandes liegt, eine Nutsäge auf einem in Richtung zum Kantenband hin zustellbaren sowie quer zur Längsrichtung des Kantenbandes verfahrbaren Schlitten angeordnet ist, die ein Kreissägeblatt aufweist, dessen Rotationsebene senkrecht zur Längsrichtung des Kantenbandes steht, wobei das Maschinenprogramm die Nutsäge zwecks Einschneiden des Kantenbandes aktiviert und die Nutsäge einerseits und das gesamte Kantenanleimaggregat andererseits so ansteuert, daß während des Betriebs der Nutsäge der Vorbeilauf des Kantenbandes an der Nutsäge angehalten ist.This object is achieved in such a Kantenanleimaggregat in that at the feed section on the side to which the slab sides in retrospect contacting side of the edge strip, a Nutsäge on an deliverable in the direction towards the edge band and transversely to the longitudinal direction of the edge band movable carriage is arranged, which has a circular saw blade whose plane of rotation is perpendicular to the longitudinal direction of the edge band, the machine program activates the Nutsäge for cutting the edge band and the Nutsäge one hand and the entire Kantenanleimaggregat on the other hand controls so that during operation of the Nutsäge the passage of the edge band on the grooving saw is stopped.

Für das erfindungsgemäße Kantenanleimaggregat ist wesentlich, die Programmsteuerung der zugehörigen Maschine nicht nur für ds passende Ablängen des Kantenbandes einsetzen zu können, sondern auch zur Vornahme einer Querschnittsschwächung an der Bandinnenseite an denjenigen Stellen, die beim Anfahren des Kantenbandes an die Plattenschmalseiten über scharfe Eckkanten oder enge Eckrundungen hinweg verformt werden müssen. Zweckmäßig sieht man an einer solchen Stelle zumindest einen v-förmigen Einschnitt vor, dessen Flanken sich beim Biegen des Kantenbandes aufeinanderlegen und so eine Gehrungfuge bilden, die vor der äußeren Eckkante des Kantenbandes endet. Da ein solches Kantenband bevorzugt aus einem Kunststoff besteht, der bei ausreichender Querschnittsschwächung eine gewisse Dehnfähigkeit hat, kann auf die beschriebene Weise eine saubere Eckkante an der Außenseite des Kantenbandes auch im Platteneckbereich erzielt werden. Die Steuerung der Nutsäge erfolgt in analoger Weise wie die beim Kantenanleimaggregat ohnehin vorhandene Ablängvorrichtung, die paßgenau das Kantenband derart ablängt, daß an der Stoßstelle der betreffenden Plattenschmalseite, an der der Bandanfang und das Bandende zusammenkommen, ein lückenfreier Bandstoß entsteht. Ebenso wie die Stoßstelle des Kantenbandes am Umfang des plattenförmigen Werkstücks im Maschinenprogramm vorbestimmt ist, sind auch diejenigen Stellen am Plattenumfang programmiert, an denen eine Eckkante oder eine starke Biegung vorliegt. So können an der diese Eckkanten oder diese Biegungen überdeckenden Stellen des Kantenbandes, die bezogen auf die Abwicklung des Kantenbandes berechnet werden, im vorhinein im Kantenanleimaggregat zwecks Querschnittsschwächung die erwähnten Einschnitte im Kantenband vorgenommen werden.For the Kantenanleimaggregat invention is essential to be able to use the program control of the associated machine not only for ds matching cutting the edge band, but also to make a Cross-sectional weakening of the band inside at those points that must be deformed when approaching the edge band to the narrow sides of the plate over sharp corner edges or tight Eckrundungen away. It is expedient to provide at least one V-shaped incision at such a point, whose flanks superimpose on bending the edge band and thus form a miter joint which ends in front of the outer corner edge of the edge band. Since such an edge band is preferably made of a plastic which has a certain elasticity with sufficient cross-sectional weakening, a clean corner edge on the outside of the edge band can also be achieved in the panel corner area in the manner described. The control of the Nutsäge done in an analogous manner as in the Kantenanleimaggregat Any existing cutting device that accurately ablängt the edge band so that at the joint of the relevant narrow plate side, come together at the beginning of the tape and the tape end, a gap-free tape joint is created. Just as the joint of the edge band on the circumference of the plate-shaped workpiece in the machine program is predetermined, those locations on the plate circumference are programmed at which a corner edge or a strong bend exists. Thus, at the corner edges or these bends overlapping areas of the edge band, which are calculated based on the development of the edge band, be made in advance in the Kantenanleimaggregat for the purpose of cross-sectional weakening the cuts in the edge band.

Grundsätzlich könnte man die Nutsäge auf dem Kantenanleimaggregat ein Stück des Weges mit dem Kantenband mitlaufen lassen, um den gewünschten Einschnitt exakt in Querrichtung des Kantenbandes vornehmen zu können. Es ist jedoch weniger aufwendig, wenn während der Dauer eines Arbeitsspiels der Nutsäge zum Einschneiden einer Nut das Kantenband an der Nutsäge angehalten ist. Dies kann dadurch geschehen, daß der Vorschub des gesamten Kantenanleimaggregates vorübergehend gestoppt wird, womit auch der Einzug des Kantenbandes in das Kantenanleimaggregat anhält.In principle, you could run the Nutsäge on the Kantenanleimaggregat a piece of the way with the edge band to make the desired incision exactly in the transverse direction of the edge band can. However, it is less expensive if, during the duration of a working cycle of the Nutsäge for cutting a groove, the edge band is stopped on the Nutsäge. This can be done by temporarily stopping the advance of the entire edge banding unit, which also stops the entry of the edge band into the edge banding unit.

Sofern in üblicher Weise auf dem Kantenanleimaggregat eine Beleimvorrichtung vorgesehen ist, wird zweckmäßig ebenso wie die Ablängvorrichtung auch die Nutsäge in Durchlaufrichtung des Kantenbandes gesehen vor der Beleimvorrichtung angeordnet.If in the usual way on the Kantenanleimaggregat a Beleimvorrichtung is provided, is expediently arranged as well as the cutting device and the Nutsäge seen in the direction of passage of the edge band in front of the gluing device.

Die Erfindung wird nachfolgend anhand der Zeichnung an einem Ausführungsbeispiel noch näher erläutert. Dabei zeigen:

Fig. 1
schematisch die Draufsicht auf ein Kantenanleimaggregat,
Fig. 2
eine vergrößerte Darstellung des in Fig. 1 mit X gekennzeichneten Details,
Fig. 3 und 4
zwei Ausführungsbeispiele für mit dem Kantenaggregat verarbeiteter Kantenbänder jeweils vor und nach der Beschichtung des plattenförmigen Werkstücks.
The invention will be explained in more detail with reference to the drawing of an embodiment. Showing:
Fig. 1
schematically the top view of a Kantenanleimaggregat,
Fig. 2
an enlarged view of the in Fig. 1 details marked with X,
3 and 4
two embodiments of processed with the edge aggregate edge bands respectively before and after the coating of the plate-shaped workpiece.

Fig. 1 zeigt ein plattenförmiges Werkstück 1, welches bei stationärer Aufspannung auf einem Bearbeitungstisch einer programmgesteuerten Holzbearbeitungsmaschine entlang seines Umfanges bearbeitet wird. Das Werkstück 1 weist unter anderem zwei Schmalseiten 2 und 3 auf, die über eine Plattenecke 4 aneinander anschließen und entsprechend an der Ecke 4 eine Eckkante senkrecht zur Plattenebene bilden. Ein wesentlicher Bearbeitungsschritt ist das Aufkleben eines Kantenbandes 5 auf die Plattenschmalseiten 2 und 3 über die Plattenecke 4 hinweg, welches mittels eines Kantenanleimaggregates 6 geschieht. Das Kantenanleimaggregat ist dazu an einer Schwenkachse einer Bearbeitungseinheit einer programmgesteuerten Maschine aufgenommen. Fig. 1 shows a plate-shaped workpiece 1, which is processed at stationary clamping on a working table of a program-controlled woodworking machine along its circumference. The workpiece 1 has, among other things, two narrow sides 2 and 3, which adjoin one another via a plate corner 4 and accordingly form a corner edge perpendicular to the plate plane at the corner 4. An essential processing step is the gluing of an edge band 5 on the narrow plate sides 2 and 3 across the plate corner 4 of time, which is done by means of a Kantenanleimaggregates 6. The Kantenanleimaggregat is added to a pivot axis of a processing unit of a program-controlled machine.

Das Kantenband 5 wird mittels einer Andruckrolle 8 und gegebenenfalls einer Vordruckrolle 7 an die Plattenschmalseiten 2 und 3 angefahren. Hierbei wird das Kantenband 5 von einem Vorrat aus durch das Kantenanleimaggregat hindurch bis zur Andruckrolle 8 zugeführt und durchläuft eine Zuführstrecke 9, die mit Transport- und Führungswalzen 10, 11 und 12 das Kantenband in tangentialer Ausdrichtung zur Andruckrolle 8 hin hält. An der Zuführstrecke 9 ist eine Beleimvorrichtung angeordnet, die im wesentlichen aus einer Leimauftragswalze 13 und einem Leimvorratsbehälter 14 besteht.The edge band 5 is approached by means of a pressure roller 8 and optionally a pre-pressure roller 7 to the narrow side panels 2 and 3. Here, the edge band 5 is supplied from a supply through the Kantenanleimaggregat through to the pinch roller 8 and passes through a feed line 9, which holds with transport and guide rollers 10, 11 and 12, the edge band in tangential Ausdrichtung to the pinch roller 8. At the feed line 9 a Beleimvorrichtung is arranged, which consists essentially of a glue applicator roll 13 and a glue reservoir 14.

Gegenüber der Beleimvorrichtung 13, 14 ist auf dem Kantenanleimaggregat 6 eine Kappsäge 15 mit einem Kreissägeblatt 16 angeordnet, die auch als Stoßsäge bezeichnet werden kann. Diese Kappsäge 15 wird vom Maschinenprogramm so gesteuert, daß das Kantenband 5 an passender Stelle durchtrennt wird, um das so gebildete Bandende am Umfang des plattenförmigen Werkstücks 1 mit lückenfreiem Stoß an den bereits angeklebten Bandanfang anschließen lassen zu können. Im übrigen steuert das Maschinenprogramm den Umlauf und den Schwenk des Kantenanleimaggregates 6 um das jeweilige plattenförmige Werkstück 1 herum, dessen Umrißgestalt entsprechend im Maschinenprogramm abgelegt ist. Da die Kappsäge 15 das Kantenband 5 lediglich völlig durchtrennt, genügt ein ausreichender Zustellweg der Kappsäge 15, um mit dessen Kreissägeblatt 16 den Querschnitt des Kantenbandes 5 völlig zu durchfahren.Opposite the gluing device 13, 14 a chop saw 15 with a circular saw blade 16 is arranged on the edge banding unit 6, which can also be referred to as a jigsaw. This chop saw 15 is controlled by the machine program so that the edge band 5 is severed at a suitable location in order to make it possible to connect the tape end thus formed on the circumference of the plate-shaped workpiece 1 with gap-free shock to the already glued tape beginning. Otherwise, the machine program controls the circulation and the pivoting of the edge banding unit 6 around the respective plate-shaped workpiece 1 around, whose outline shape is stored accordingly in the machine program. Since the chop saw 15 only completely cuts through the edge band 5, a sufficient feed path of the chop saw 15 is sufficient to completely pass through the cross section of the edge band 5 with its circular saw blade 16.

Am Kantenanleimaggregat 6 ist ferner eine Nutsäge 17 angeordnet, die sich in Durchlaufrichtung des Kantenbandes 5 ebenfalls vor der Beleimvorrichtung 13, 14 befindet. Die Nutsäge 17 weist ein Kreissägeblatt 18 auf und ist auf einem Schlitten 25 angeordnet, der nicht nur in Richtung zum durchlaufenden Kantenband 5 hin zustellbar sondern auch in Höhenrichtung, also in Querrichtung des Kantenbandes 5 verfahrbar ist. Denn mit dem Kreissägeblatt 18 der Nutsäge 17 soll das Kantenband 5 an derjenigen Seite lediglich eingeschnitten, jedoch nicht durchgeschnitten werden, mit der das Kantenband 5 auf die Schmalflächenseiten 2, 3 des plattenförmigen Werkstücks 1 aufgeklebt wird. Da bezogen auf die Durchlaufrichtung des Kantenbandes 5 die Nutsäge 17 mit ihrem Kreissägeblatt 18 auf dem Schlitten 25 ortsfest angeordnet ist, muß ein Verlaufen des während eines Arbeitsspiels der Nutsäge angebrachten Einschnitts verhindert werden. Dazu wird über das Maschinenprogramm der Vorschub des gesamten Kantenanleimaggregates angehalten, womit vorübergehend der Durchlauf des Kantenbandes 5, das von einem Kantenbandvorrat abgezogen wird, gestoppt wird.At Kantenanleimaggregat 6 a Nutsäge 17 is also arranged, which is also in the direction of passage of the edge strip 5 in front of the gluing device 13, 14. The Nutsäge 17 has a circular saw blade 18 and is arranged on a carriage 25, which is deliverable not only in the direction of the continuous edge band 5 out but also in the vertical direction, ie in the transverse direction of the edge band 5. Because with the circular saw blade 18 of the Nutsäge 17, the edge band 5 is only cut on the side, but not cut through, with the edge band 5 is adhered to the narrow side surfaces 2, 3 of the plate-shaped workpiece 1. Since, based on the passage direction of the edge band 5, the Nutsäge 17 is fixedly mounted with its circular saw blade 18 on the carriage 25, a bleeding of the mounted during a cycle of the Nutsäge incision must be prevented. For this purpose, the feed of the entire Kantenanleimaggregates is stopped by the machine program, which temporarily the passage of the edge strip 5, which deducted from an edgeband supply is stopped.

Fig. 2 zeigt einen Querschnitt durch den Umfangsbereich des Sägeblattes 18 der Nutsäge 17, und man erkennt hier, daß die Sägezähne Schneiden 19 haben, die nach außen hin V-förmig konvergieren, also unter einem spitzen Winkel zueinander stehen und am Außenumfang des Kreissägeblattes 18 spitz zusammenlaufen. Fig. 2 shows a cross section through the peripheral portion of the saw blade 18 of the Nutsäge 17, and it can be seen here that the saw teeth have blades 19 which converge outwardly V-shaped, so are at an acute angle to each other and converge at the outer periphery of the circular saw blade 18 pointed.

Die mit einem solchen Kreissägeblatt 18 in die betreffende Seite des Kantenbandes 5 einzubringenden Nuten oder Einschnitte 20 und 21 sind in den Figuren 3 und 4 schematisch dargestellt. Beim Ausführungsbeispiel nach Fig. 3 ist lediglich ein einziger Gehrungseinschnitt 20 mit einem V-Winkel von 90° vorhanden, der es ermöglicht, das Kantenband 5 um eine 90°-Ecke des plattenförmigen Werkstücks 1 so herum aufzubringen, daß in diagonaler Richtung zur Plattenecke eine lückenlose Gehrungsfuge 23 entsteht, die im Bereich der Außenecke des Kantenbandes 5 geschlossen ist. Fig, 4 veranschaulicht, daß an der betreffenden Platteneckkante oder -biegung das darum herumzufahrende Kantenband auch zwei oder mehrere Einschnitte 21 an seiner Innenseite aufweisen kann, um eine stumpfere Ecke des Kantenbandes 5 mit entsprechend zwei oder mehreren Gehrungsfugen 24 auszubilden.The grooves or cuts 20 and 21 to be made with such a circular saw blade 18 in the relevant side of the edge band 5 are in the FIGS. 3 and 4 shown schematically. According to the embodiment Fig. 3 is only a single miter notch 20 with a V-angle of 90 ° available, which makes it possible to apply the edge band 5 around a 90 ° corner of the plate-shaped workpiece 1 so that in the diagonal direction to the plate corner a gapless miter joint 23 is formed, the is closed in the outer corner of the edge band 5. Fig. 4 illustrates that at the respective plate corner edge or bend around the edge band to be moved around it may also have two or more cuts 21 on its inner side to form a blunt corner of the edge band 5 with corresponding two or more miter joints 24.

Claims (3)

  1. Edge banding apparatus for a program-controlled machine for moving an edging band (5) up against the narrow sides (2,3) of a panel-type workpiece (1) made of a wood substitute which adjoin one another over narrow bends or corner edges, having a contact pressure roller (8) for pressing the edging band (5) against the narrow sides (2, 3) of the panel and having a feed section (9) for the edging band (5) located in front of the contact pressure roller (8) where a cutting device (15, 16) is mounted for cutting off the edging band (5) to the required length wherein on the side of the edging band (5) which afterwards contacts the narrow sides (2, 3) of the plate, in order to weaken the cross-section incisions (20, 21) are made at those places which are subjected to severe bending as they are moved up,
    characterised in that at the feed section (9) on the side facing the side of the edging band (5) which afterwards contacts the narrow sides (2, 3) of the panel, there is a grooving saw (17) mounted on a slide carriage (19) which can be set up towards the edging band (5) and is movable transversely to the longitudinal direction of the edging band (5) wherein the grooving saw has a circular saw blade (18) whose rotational plane stands perpendicular to the longitudinal direction of the edging band (5) wherein the machine program activates the grooving saw (17) for the purpose of cutting into the edging band (5) and controls the grooving saw (17) on the one side and the complete gluing apparatus (6) on the other side so that during operation of the grooving saw (17) the movement of the edging band (5) past the grooving saw (17) is stopped.
  2. Edge banding apparatus according to claim 1
    characterised in that the circular saw blade (18) has teeth with cutting edges (19) which are formed V-shape to run at an acute angle to one another with the apices lying in the external circumference of the circular saw blade (18).
  3. Edge banding apparatus according to claim 1 or 2
    characterised in that at the feed section (9) for the edging band (5) there is a gluing device (13, 14) for applying glue to the side of the band which afterwards contacts the narrow sides (2, 3) of the panel, wherein the grooving saw (17) seen in the feed direction of the edging band (5) is located in front of the gluing device (13, 14).
EP04006305A 2003-05-23 2004-03-17 Edge-banding apparatus for a program controlled machine Expired - Fee Related EP1479494B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10323266 2003-05-23
DE2003123266 DE10323266B3 (en) 2003-05-23 2003-05-23 Edge banding unit for a program-controlled machine

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EP1479494A2 EP1479494A2 (en) 2004-11-24
EP1479494A3 EP1479494A3 (en) 2008-02-27
EP1479494B1 true EP1479494B1 (en) 2010-05-05

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DE202006010157U1 (en) * 2006-06-30 2007-11-08 Homag Holzbearbeitungssysteme Ag lightweight panel
DE102009016929A1 (en) 2009-04-08 2010-10-14 Ima Klessmann Gmbh Holzbearbeitungssysteme Method and device for applying an edge band to an edge of a workpiece
DE102015208172A1 (en) * 2015-05-04 2016-11-10 Homag Holzbearbeitungssysteme Gmbh Coating material for coating unsteady surfaces and methods
DE102016221577A1 (en) 2016-11-03 2018-05-03 Homag Gmbh Process for coating unsteady surfaces, device and component
CN108887807B (en) * 2018-08-03 2024-02-13 洛阳乐足鞋业有限公司 Special banding device of cloth shoes sole
CN111113589A (en) * 2019-12-24 2020-05-08 励泰家具（清远）有限公司 Automatic edge sealing equipment suitable for multiple sheet materials and capable of identifying label information
DE102020119454A1 (en) 2020-07-23 2022-01-27 Ima Schelling Deutschland Gmbh Adhesive application assembly and method for applying an adhesive to an edge band
CN116787573A (en) * 2023-06-09 2023-09-22 索菲亚家居股份有限公司 Handle-free door plate with sealed thick PVC (polyvinyl chloride) side bands and manufacturing method thereof

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DE8701376U1 (en) 1987-01-29 1988-06-16 Ima-Norte Maschinenfabriken Klessmann Gmbh & Co, 4830 Guetersloh, De
WO1997005993A1 (en) * 1995-08-04 1997-02-20 Bortolini Engineering S.N.C. Flanging and trimming machine of panels
DE19741163C2 (en) 1997-09-18 2002-10-10 Homag Maschinenbau Ag Method and device for continuous processing of plate-shaped workpieces
DE19947164C1 (en) * 1999-10-01 2001-08-23 Sanipa Gmbh Badeinrichtungen Process for producing a softforming edge and edge band for use in such a process
DE10105161C1 (en) * 2001-02-06 2002-06-20 Klessmann Ima Gmbh Holzbearbei Edging cutter for edge gluing machine has separating unit in form of fixed-position rotating cutter and radially projecting blade

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DE10124695A1 (en) * 2001-05-18 2002-11-28 Klessmann Ima Gmbh Holzbearbei Tool for applying edge strips to surfaces and boards can be fitted with different diameter pressure rollers and has the adhesive roller and feed roller mounted on an adjustable frame to ensure a straight feed of edge strip

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DE502004011116D1 (en) 2010-06-17
EP1479494A2 (en) 2004-11-24
EP1479494A3 (en) 2008-02-27
DE10323266B3 (en) 2004-12-09

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