EP0453936B1 - Glue applying device for edge glueing machines - Google Patents

Glue applying device for edge glueing machines Download PDF

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Publication number
EP0453936B1
EP0453936B1 EP91106112A EP91106112A EP0453936B1 EP 0453936 B1 EP0453936 B1 EP 0453936B1 EP 91106112 A EP91106112 A EP 91106112A EP 91106112 A EP91106112 A EP 91106112A EP 0453936 B1 EP0453936 B1 EP 0453936B1
Authority
EP
European Patent Office
Prior art keywords
slide
sealing
feeler
applicator device
workpiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91106112A
Other languages
German (de)
French (fr)
Other versions
EP0453936A2 (en
EP0453936A3 (en
Inventor
Roland Henzler
Anton Abt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reich Spezialmaschinen GmbH
Original Assignee
Reich Spezialmaschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Reich Spezialmaschinen GmbH filed Critical Reich Spezialmaschinen GmbH
Priority to AT91106112T priority Critical patent/ATE99566T1/en
Publication of EP0453936A2 publication Critical patent/EP0453936A2/en
Publication of EP0453936A3 publication Critical patent/EP0453936A3/en
Application granted granted Critical
Publication of EP0453936B1 publication Critical patent/EP0453936B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0204—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to the edges of essentially flat articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined

Definitions

  • the present invention relates to an adhesive application device in edge banding machines according to the preamble of claim 1.
  • Such an application device is known from DE-A-17 28 470, a displaceable metering rod engaging in the feed channel for the adhesive determining the adhesive width.
  • the metering rod can be connected to a scanning device scanning the workpiece for the automatic adaptation of the adhesive widths to the plate-shaped workpiece.
  • the object of the present invention is therefore to create an application device of the type mentioned at the outset, which allows an exact release of the adhesive width as a function of the height of the plate-shaped workpiece.
  • the feeler slide according to the invention adapts exactly to the surface of the plate-shaped workpiece and thus controls the adhesive application according to the workpiece height.
  • the slide valve is connected to the metering rod in a resiliently displaceable manner, so that when the metering rod is connected to the bridge of the edge banding machine, it automatically adapts to the workpiece height.
  • a particularly flawless sealing of the application bores to be closed results from a groove in the nozzle body arranged in the region of the application bores, into which a sealing strip of the push-button slide engages in a sealing manner.
  • Fig. 1 shows part of the edge banding machine with bridge 1, on which the transport rollers 2 are pivotally mounted and with a conveyor chain 3, on which the plate-shaped workpiece 4 rests and with which it is guided past the application device 5 for the adhesive.
  • This consists in a known manner of a wedge-shaped nozzle body 6 which is provided with a feed channel 8 for the adhesive which extends perpendicular to the feed direction 7 of the workpiece 4 and from which a number of application bores 9 open between the ribs 10 of a doctor blade 11.
  • a metering rod 13 slidably engages in the feed channel 8 and only releases the application bores 9 desired for the adhesive application.
  • it is connected to the bridge 1 by a linkage 14, which is adjusted to the respective workpiece 4.
  • the adhesive passes from a melting chamber (not shown) via a container 15 through an axial bore 16 in the metering rod 13 and through a lateral opening 17 into the application bores 9 and thus onto the narrow surface 12.
  • a push slide 18 is slidably mounted together with the metering rod 13, the sealing surface 19 of which rests on the squeegee 11 and the push surface 20 rests on the surface 21 of the workpiece 4.
  • the slide switch 18 is connected to a guide rod 22 which is mounted on the linkage 14 so as to be displaceable against the action of a compression spring 23.
  • the nozzle body 6 in the area of the application holes 9 has a vertical groove 24, in which a sealing strip 25 of the slide valve 18 engages in a sealing manner. This ensures a secure closure of the order bores 9 to be sealed.
  • Fig. 4 shows that the key surface 20 of the slide valve 18 is arranged inclined to the sealing surface 19. This ensures that the push slide 18 is pressed by the workpiece 4 against the rack 11, which increases the sealing effect. Furthermore, Fig. 1 shows that the key slide 18 has an inlet slope 28 so that it is raised by the incoming workpiece 4.
  • an inclined contact surface 29 is used at its lower end (see FIG. 4), against which the lower edge of the narrow surface 12 abuts and prevents the hot melt adhesive from escaping downwards in an undesirable manner.

Abstract

In a glue applying device (5) for edge gluing machines with a wedge-shaped nozzle body (6) with application bores (9) for the adhesive, a follower slide (18) which rests against the nozzle body (6) is provided, said slide partially covering the application bores (9) and its follower surface (20) interacting with the plate-shaped workpiece (4). The follower slide (18) exactly matches the surface (21) of the workpiece (4) and thus controls the release of the width of adhesive as function of the height of the workpiece (4). <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Klebstoff-Auftragsvorrichtung bei Kantenanleimmaschinen gemäß Oberbegriff von Anspruch 1.The present invention relates to an adhesive application device in edge banding machines according to the preamble of claim 1.

Eine solche Auftragsvorrichtung ist bekannt aus der DE-A-17 28 470, wobei ein in den Zuführkanal für den Klebstoff eingreifender, verschiebbarer Dosierstab die Klebebreite bestimmt. Der Dosierstab kann zur selbsttätigen Anpassung der Klebebreiten an das plattenförmige Werkstück mit einer das Werkstück abtastenden Tastvorrichtung verbunden sein.Such an application device is known from DE-A-17 28 470, a displaceable metering rod engaging in the feed channel for the adhesive determining the adhesive width. The metering rod can be connected to a scanning device scanning the workpiece for the automatic adaptation of the adhesive widths to the plate-shaped workpiece.

In gewissen Fällen ist dabei die Einstellmöglichkeit des Dosierstabes für eine exakte Abdeckung der Auftragsbohrungen begrenzt.In certain cases, the possibility of adjusting the metering rod for an exact covering of the application holes is limited.

Aufgabe der vorliegenden Erfindung ist daher die Schaffung einer Auftragsvorrichtung der eingangs genannten Art, die eine exakte Freigabe der Klebebreite in Abhängigkeit von der Höhe des plattenförmigen Werkstückes erlaubt.The object of the present invention is therefore to create an application device of the type mentioned at the outset, which allows an exact release of the adhesive width as a function of the height of the plate-shaped workpiece.

Diese Aufgabe wird erfindungsgemäß gelöst durch die Merkmale im Kennzeichen des Anspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.This object is achieved according to the invention by the features in the characterizing part of claim 1. Advantageous refinements of the invention are characterized in the subclaims.

Der erfindungsgemäße Tastschieber paßt sich exakt der Oberfläche des plattenförmigen Werkstückes an und steuert damit den Kleberauftrag entsprechend der Werkstückhöhe.The feeler slide according to the invention adapts exactly to the surface of the plate-shaped workpiece and thus controls the adhesive application according to the workpiece height.

Bei einer vorteilhaften Ausführungsform ist der Tastschieber mit dem Dosierstab federnd verschiebbar verbunden, so daß er sich, wenn der Dosierstab mit der Brücke der Kantenanleimmaschine verbunden ist, jeweils selbsttätig der Werkstückhöhe anpaßt.In an advantageous embodiment, the slide valve is connected to the metering rod in a resiliently displaceable manner, so that when the metering rod is connected to the bridge of the edge banding machine, it automatically adapts to the workpiece height.

Eine besonders einwandfreie Abdichtung der zu verschließenden Auftragsbohrungen ergibt sich durch eine im Bereich der Auftragsbohrungen angeordnete Nut im Düsenkörper, in die eine Dichtleiste des Tastschiebers dichtend eingreift.A particularly flawless sealing of the application bores to be closed results from a groove in the nozzle body arranged in the region of the application bores, into which a sealing strip of the push-button slide engages in a sealing manner.

Wenn auch die Erfindung anhand einer einseitigen Reihe von Auftragsbohrungen beschrieben ist, so ist es natürlich auch möglich, die Auftragsbohrungen gegenüberliegend an beiden Seiten des Zuführkanals einzuordnen und diese entsprechend mit Tastschiebern abzudecken.If the invention is also described with reference to a one-sided row of application bores, it is of course also possible to arrange the application bores opposite one another on both sides of the feed channel and to cover them accordingly with push buttons.

Im folgenden ist ein Ausführungsbeispiel der Erfindung unter Bezugnahme auf die Zeichnungen näher beschrieben.An exemplary embodiment of the invention is described in more detail below with reference to the drawings.

Es zeigen:

Fig. 1
Auftragsvorrichtung von der Seite
Fig. 2
Auftragsvorrichtung von hinten
Fig. 3
Schnitt nach Linie III - III in Fig. 1
Fig. 4
Schnitt nach Linie IV - IV in Fig. 3
Show it:
Fig. 1
Application device from the side
Fig. 2
Application device from behind
Fig. 3
Section along line III - III in Fig. 1
Fig. 4
Section along line IV - IV in Fig. 3

Die Fig. 1 zeigt einen Teil der Kantenanleimmaschine mit Brücke 1, an der die Transportrollen 2 schwenkbar gelagert sind und mit einer Förderkette 3, auf der das plattenförmige Werkstück 4 aufliegt und mit dem es an der Auftragsvorrichtung 5 für den Klebstoff vorbeigeführt wird.Fig. 1 shows part of the edge banding machine with bridge 1, on which the transport rollers 2 are pivotally mounted and with a conveyor chain 3, on which the plate-shaped workpiece 4 rests and with which it is guided past the application device 5 for the adhesive.

Diese besteht in bekannter Weise aus einem keilförmigen Düsenkörper 6, der mit einem sich senkrecht zur Vorschubrichtung 7 des Werkstücks 4 erstreckenden Zuführkanal 8 für den Klebstoff versehen ist, aus dem eine Reihe von Auftragsbohrungen 9 zwischen die Rippen 10 einer Rakel 11 einmünden.This consists in a known manner of a wedge-shaped nozzle body 6 which is provided with a feed channel 8 for the adhesive which extends perpendicular to the feed direction 7 of the workpiece 4 and from which a number of application bores 9 open between the ribs 10 of a doctor blade 11.

Zur Einstellung der Klebebreite entsprechend der Höhe von Schmalfläche 12 des Werkstücks 4 greift in den Zuführkanal 8 ein Dosierstab 13 verschiebbar ein, der nur die zum Kleberauftrag gewünschten Auftragsbohrungen 9 freigibt. Zur selbsttätigen Anpassung an die Höhe von Schmalfläche 12 ist er durch ein Gestänge 14 mit der Brücke 1 verbunden, die auf das jeweilige Werkstück 4 eingestellt wird.To adjust the adhesive width according to the height of the narrow surface 12 of the workpiece 4, a metering rod 13 slidably engages in the feed channel 8 and only releases the application bores 9 desired for the adhesive application. For automatic adaptation to the height of the narrow surface 12, it is connected to the bridge 1 by a linkage 14, which is adjusted to the respective workpiece 4.

Der Klebstoff gelangt aus einer nicht dargestellten Schmelzkammer über einen Behälter 15 durch eine Axialbohrung 16 im Dosierstab 13 und durch einen seitlichen Durchbruch 17 in die Auftragsbohrungen 9 und damit auf die Schmalfläche 12.The adhesive passes from a melting chamber (not shown) via a container 15 through an axial bore 16 in the metering rod 13 and through a lateral opening 17 into the application bores 9 and thus onto the narrow surface 12.

Wie Fig. 2 und 3 zeigen, ist am Düsenkörper 6 im Bereich der Auftragsbohrungen 9 ein Tastschieber 18 zusammen mit dem Dosierstab 13 verschiebbar gelagert, dessen Dichtfläche 19 an der Rakel 11 anliegt und dessen Tastfläche 20 an der Oberfläche 21 von Werkstück 4 anliegt.As shown in FIGS. 2 and 3, on the nozzle body 6 in the area of the application bores 9 a push slide 18 is slidably mounted together with the metering rod 13, the sealing surface 19 of which rests on the squeegee 11 and the push surface 20 rests on the surface 21 of the workpiece 4.

Dazu ist der Tastschieber 18 mit einer Führungsstange 22 verbunden, die gegen Wirkung einer Druckfeder 23 verschiebbar am Gestänge 14 gelagert ist.For this purpose, the slide switch 18 is connected to a guide rod 22 which is mounted on the linkage 14 so as to be displaceable against the action of a compression spring 23.

Wie Fig. 3 und 4 zeigen, weist der Düsenkörper 6 im Bereich der Auftragsbohrungen 9 eine senkrechte Nut 24 auf, in die eine Dichtleiste 25 von Tastschieber 18 dichtend eingreift. Damit ist ein sicherer Verschluß der abzudichtenden Auftragsbohrungen 9 gewährleistet.3 and 4 show, the nozzle body 6 in the area of the application holes 9 has a vertical groove 24, in which a sealing strip 25 of the slide valve 18 engages in a sealing manner. This ensures a secure closure of the order bores 9 to be sealed.

Ein am Tastschieber 18 senkrecht zur Dichtfläche 19 angeordneter Dichtschenkel 26 liegt an einer Stirnfläche 27 von Düsenkörper 6 an und verhindert so, daß Schmelzkleber auf das Werkstück 4 gelangt.A sealing leg 26 arranged on the push-button slide 18 perpendicular to the sealing surface 19 bears against an end surface 27 of the nozzle body 6 and thus prevents hot melt adhesive from reaching the workpiece 4.

Fig. 4 zeigt, daß die Tastfläche 20 des Tastschiebers 18 zur Dichtfläche 19 geneigt angeordnet ist. Damit wird erreicht, daß der Tastschieber 18 vom anliegenden Werkstück 4 gegen die Rackel 11 gedrückt wird, womit sich die Dichtwirkung erhöht. Weiterhin zeigt Fig. 1, daß der Tastschieber 18 eine Einlaufschräge 28 aufweist, so daß er vom einlaufenden Werkstück 4 angehoben wird.Fig. 4 shows that the key surface 20 of the slide valve 18 is arranged inclined to the sealing surface 19. This ensures that the push slide 18 is pressed by the workpiece 4 against the rack 11, which increases the sealing effect. Furthermore, Fig. 1 shows that the key slide 18 has an inlet slope 28 so that it is raised by the incoming workpiece 4.

Zur weiteren Abdichtung der Rakel 11 dient eine geneigte Anlagefläche 29 an ihrem unteren Ende (siehe Fig. 4), an der die untere Kante der Schmalfläche 12 anleigt und ein unerwünschtes Austreten des Schmelzklebers nach unten verhindert.For further sealing of the squeegee 11, an inclined contact surface 29 is used at its lower end (see FIG. 4), against which the lower edge of the narrow surface 12 abuts and prevents the hot melt adhesive from escaping downwards in an undesirable manner.

Claims (7)

  1. An adhesive applicator device in edge banding machines having a tapered nozzle body (6), having an adhesive feed channel (8) extending therein vertical to the feed direction (7) of the workpiece (4) from which channel at least one row of application holes (9) exits between the ribs (10) of a doctor blade (11), and having a dosing rod (13) movably mounted in said feed channel (8), characterised in that a feeler slide (18) in contact with a sealing surface (19) in the vicinity of said application holes (9) is movably mounted parallel to said dosing rod (13) on said nozzle body (6), the feeler surface (20) of said slide (18) interacting with said workpiece (4).
  2. An applicator device according to Claim 1, characterised in that said feeler slide (18) is movably mounted on the dosing rod (13) against the action of an elastic force (23).
  3. An applicator device according to Claim 1 or 2, characterised in that said feeler slide (18) is provided with a sealing strip (25) that engages with a sealing effect in a groove (24) disposed in the vicinity of said application holes (9) in said nozzle body (6).
  4. An applicator device according to one of Claims 1 to 3, characterised in that said feeler slide (18) has at least one sealing leg (26) extending vertically to said sealing surface (19) and being in sealing contact with said nozzle body (6) at the end of said doctor blade (11).
  5. An applicator device according to one of Claims 1 to 4, characterised in that said feeler surface (20) of said feeler slide (18) is disposed at an angle to said sealing surface (19).
  6. An applicator device according to one of Claims 1 to 5, characterised in that said feeler surface (20) has an inward slant (28).
  7. An applicator device according to one of Claims 1 to 6, characterised in that said doctor blade (11) has at its lower end an inclined contact surface (29) for the lower edge of the narrow surface (12).
EP91106112A 1990-04-21 1991-04-17 Glue applying device for edge glueing machines Expired - Lifetime EP0453936B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91106112T ATE99566T1 (en) 1990-04-21 1991-04-17 ADHESIVE APPLICATION DEVICE FOR EDGE BANDING MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012726A DE4012726A1 (en) 1990-04-21 1990-04-21 ADHESIVE APPLICATION DEVICE IN EDGE BANDING MACHINES
DE4012726 1990-04-21

Publications (3)

Publication Number Publication Date
EP0453936A2 EP0453936A2 (en) 1991-10-30
EP0453936A3 EP0453936A3 (en) 1991-12-11
EP0453936B1 true EP0453936B1 (en) 1994-01-05

Family

ID=6404797

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91106112A Expired - Lifetime EP0453936B1 (en) 1990-04-21 1991-04-17 Glue applying device for edge glueing machines

Country Status (4)

Country Link
EP (1) EP0453936B1 (en)
AT (1) ATE99566T1 (en)
DE (2) DE4012726A1 (en)
ES (1) ES2050474T3 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20010315A1 (en) * 2001-05-18 2002-11-18 Scm Group Spa GLUE DISTRIBUTOR GROUP IN PARTICULAR FOR MACHINES FOR THE PROCESSING OF WOOD PANELS
US7507295B2 (en) 2005-03-22 2009-03-24 Nordson Corporation Adhesive dispenser
US8127711B2 (en) 2007-07-05 2012-03-06 Nordson Corporation Mounting systems for an adhesive application system and methods for applying adhesive
ES2398010T3 (en) 2009-07-21 2013-03-13 Holz-Her Gmbh Glue application device
ES2388480T3 (en) 2009-10-07 2012-10-15 Holz-Her Gmbh Device for queue application
DE202009016025U1 (en) 2009-11-18 2010-02-18 Reich Spezialmaschinen Gmbh Verleimvorrichtung
DE202009016024U1 (en) 2009-11-18 2010-02-18 Reich Spezialmaschinen Gmbh Device for providing molten adhesive
IT1396969B1 (en) * 2009-12-18 2012-12-20 Scm Group Spa GLUING METHOD
DE102013003688A1 (en) 2012-10-26 2014-04-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Combination nozzle and device for applying a viscous material to a component edge
CN108501163B (en) * 2018-04-09 2020-02-07 机械科学研究总院海西（福建）分院有限公司 Plate-type furniture production line with automatic connection of all links
CN109318319A (en) * 2018-11-02 2019-02-12 东莞市同步自动化技术有限公司 Edge banding machine and its squeegee apparatus
DE102019101539A1 (en) 2019-01-22 2020-07-23 Christof Schulte-Göbel Device for providing adhesive
DE102022110163A1 (en) 2022-04-27 2023-11-02 Homag Gmbh Device for coating a workpiece

Also Published As

Publication number Publication date
EP0453936A2 (en) 1991-10-30
EP0453936A3 (en) 1991-12-11
ES2050474T3 (en) 1994-05-16
DE4012726A1 (en) 1991-10-24
DE59100795D1 (en) 1994-02-17
ATE99566T1 (en) 1994-01-15

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