EP0061040B1 - Dispositif de fusion et de dépôt d'adhésif fusible - Google Patents

Dispositif de fusion et de dépôt d'adhésif fusible Download PDF

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Publication number
EP0061040B1
EP0061040B1 EP82101725A EP82101725A EP0061040B1 EP 0061040 B1 EP0061040 B1 EP 0061040B1 EP 82101725 A EP82101725 A EP 82101725A EP 82101725 A EP82101725 A EP 82101725A EP 0061040 B1 EP0061040 B1 EP 0061040B1
Authority
EP
European Patent Office
Prior art keywords
melting
melting chamber
melt adhesive
applicator according
melting device
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
Application number
EP82101725A
Other languages
German (de)
English (en)
Other versions
EP0061040A3 (en
EP0061040A2 (fr
Inventor
Alfred Dettelbach
Roland Henzler
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 AT82101725T priority Critical patent/ATE14682T1/de
Publication of EP0061040A2 publication Critical patent/EP0061040A2/fr
Publication of EP0061040A3 publication Critical patent/EP0061040A3/de
Application granted granted Critical
Publication of EP0061040B1 publication Critical patent/EP0061040B1/fr
Expired 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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1042—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus
    • 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
    • B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
    • 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
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • Hot-melt adhesive units are fed from a magazine through a feed opening to the melting chamber, a closure slide connected to the delivery piston blocking the magazine during the delivery stroke.
  • hot melt adhesive should be understood to mean all plastic-based adhesives which are solid at room temperature and which are liquefied by application to the workpiece by heating and which solidify immediately after the workpieces have been joined together.
  • the original commercial form of hot melt adhesive is the granulate; it therefore makes sense to also use granules in a melting and application device of the type mentioned at the beginning. However, this would be partially pushed back into the storage container by the delivery stroke and jam the delivery piston in the melting chamber.
  • the inventive use of a slide valve separate from the delivery piston in the feed opening of the melting chamber ensures that the storage container is securely closed after the filling process.
  • the melt adhesive granulate can then be pressed by the delivery piston without any problems in the direction of the melt wall.
  • the use of a limit switch and associated delay elements which can be actuated by the delivery piston ensures that the delivery stroke only begins after the melting chamber has been filled with granules and the closure slide has closed the feed opening.
  • both the slide valve and the opposite wall of the melting chamber are each provided with a knife edge which reliably separates the melt adhesive granules located in the storage container from the filling of the melting chamber.
  • the storage container can be exchanged for rapid change of the type of hot-melt adhesive, its opening facing the melting chamber being closable by a locking slide.
  • the storage container placed on the melting chamber can be secured by a lock, which at the same time interacts with an interrupter switch in such a way that the displacement unit for actuating the closure slide can only be actuated when the lock is in its locking position.
  • a melting device 1 is connected to an application device 2, which in the present exemplary embodiment is provided with a nozzle body 3, but can also be designed as an application roller.
  • the melting device 1 has a melting chamber 4, which at its end facing the application device 2 by a heatable. Melting insert 5 is completed.
  • a delivery piston 6, which is displaceably mounted in the melting chamber 4, is connected to the piston 7 of a compressed air cylinder 8.
  • first limit switch 9 and second limit switch 10 are arranged outside each of compressed air cylinders 8.
  • the melting chamber 4 of square cross section is enclosed by a wall 11 which is interrupted at the top by a feed opening 12.
  • a slide valve 13 is slidably mounted and movable in the direction of the feed opening 12 by a sliding unit 14 designed as a compressed air cylinder with a compressed air piston.
  • the slide valve 13 has a knife edge 15 which is opposite a knife edge 16 in the wall 11.
  • a storage container 17 is removably arranged on the wall 11, which widens conically upwards and serves to hold the solid hot-melt adhesive granulate 18.
  • the storage container 17 has bars 19, 19 'on both sides (FIG. 2), the centering pins 20 of which engage in bores 21 which are provided in eyes 22 of wall 11.
  • a locking pin 23 is also connected to the bolt 19, which is pivoted in the locking position of bolt 19 under a tab 24 of storage container 17.
  • the storage container 17 is provided at its lower end with a locking slide 27 which closes the outlet opening when the storage container 17 is removed from the melting device 1, as long as there is still melt adhesive granulate 18 in the storage container 17.
  • the reservoir 17 filled with hot-melt adhesive granules 18 is first placed on the wall 11 of the melting chamber 4 with the blocking slide 27 closed. By pivoting the latches 19, 19 'via the lever 26, the reservoir 17 is locked to the wall 11 and the circuit breaker 25 is actuated at the same time.
  • melt adhesive granulate 18 can get into the melting chamber 4 through the feed opening 12 after the opening of the slide valve 27 and fill it.
  • the slide valve 13 closes the feed opening 12 and thereby separates the melting chamber 4 safely from the storage container 17.
  • the piston 7 is then acted upon with a relatively low idle pressure by means of a delay element (not shown) so that the delivery piston 6 does so in the Melting chamber 4 located hot melt adhesive granules 18 presses in the direction of the heated melt insert 5.
  • the parts of the hot-melt adhesive granules which are in contact with them are melted.
  • the maintenance of the static pressure is intended to prevent the elastic, less compressed granulate from displacing the piston 7 too far back.
  • the further function of the melting and application device now corresponds to the melting and application device described in DE-OS 27 31 799, the feed piston 6 being controlled by the front and rear edges of a workpiece, not shown, conveyed by an edge banding machine in a continuous manner via pushbutton switches is that the piston 7 is acted upon by a higher pressure and that the rotary valve 28 is rotated via a compressed air piston, not shown, so that the nozzle openings 29 open and molten hot melt adhesive can reach the narrow sides of the workpiece.
  • the first limit switch 9 is inductively influenced by the piston 7 so that this controls the delivery piston 6 back into its drawn filling position via a compressed air valve, not shown.
  • the displacement unit 14 is also acted on in such a way that the slide valve 13 opens the feed opening 12 so that further melt adhesive granules 18 can get into the melting chamber 4.
  • Another time delay element causes the supply opening 12 to be closed again by the slide valve 13 and the piston 7 to be acted upon by a low resting pressure after a certain time.
  • a delay element delays the backward movements of the delivery piston 6 and the slide valve 13 until the workpiece has completely passed over the nozzle openings 29.
  • a second limit switch 10 can also be provided instead of a delay element for reversing the delivery piston 6 and the closure slide 13, said limit switch 10 being inductively actuable by the piston 7 in its rearmost filling position.
  • a time relay (not shown) connected to the first limit switch 9 and monitoring the movement of the piston 7 and the slide valve 13 can be provided as a further safeguard.
  • the piston 7 can immediately turn back after reaching the filling position and reach the limit switch 9.
  • the time relay controls a locking device on the input side of the edge banding machine into a locking position so that workpieces can no longer be input. This is only possible again after refilling the storage container 17 with hot-melt adhesive granulate.
  • an application roller can also be used instead of a nozzle body 3 with nozzle openings 29, to which the liquid hot-melt adhesive is fed again by the melting device 1.

Claims (8)

1. Dispositif de fusion et d'application pour colle à fusion, notamment pour machines à plaquer les chants au défilé pour pièces à travailler continues, caractérisé par
a) une chambre de fusion (4), à l'extrémité - faisant face au dispositif d'application (2) - de laquelle est disposée une paroi de fusion (5) chauffable, dotée d'orifices de sortie,
b) un piston d'alimentation (6) mobile logé dans la chambre de fusion (4) et pouvant être commandé par la pièce à travailler, et
c) un orifice d'alimentation (12) donnant accès à la chambre de fusion (4), orifice dans lequel débouche un réservoir d'approvisionnement (17) destiné à la colle à fusion ferme (18) et qui peut être fermé par une barre d'enclenchement, caractérisé par le fait que, pour le déplacement de la barre d'enclenchement (13), pouvant être actionnée indépendamment du piston d'alimentation (6), un organe de déplacement mécanique (14) est prévu, et qu'un premier fin de course (9), pouvant être actionné par le piston d'alimentation (6), commande le mouvement d'ouverture et qu'un élément de temporisation relié à celui-ci commande le mouvement de fermeture de la barre d'enclenchement (13).
2. Dispositif de fusion et d'application d'après la revendication 1, caractérisé par le fait que le piston d'alimentation (6) peut admettre une pression de service accrue pour l'application de la colle à fusion et une pression de repos réduite en cas de non-actionnement du dispositif d'application (2).
3. Dispositif de fusion et d'application d'après la revendication 1 ou 2, caractérisé par le fait que la barre d'enclenchement (13) présente une arête de couteau (15) à son extrémité faisant face à l'orifice d'alimentation (12).
4. Dispositif de fusion et d'application d'après la revendication 3, caractérisé par le fait que, sur la paroi (11) opposée à l'arête de couteau (15) de la barre d'enclenchement (13), une arête de couteau (16) est également disposée.
5. Dispositif de fusion et d'application d'après l'une des revendications 1 à 4, caractérisé par le fait que le réservoir d'approvisionnement (17) est relié à la chambre de fusion (4) tout en étant amovible.
6. Dispositif de fusion et d'application d'après la revendication 5, caractérisé par le fait que, à l'extrémité du réservoir d'approvisionnement (17) située du côté ouverture, une barre d'enclenchement (27) reliée à celui-ci est prévue.
7. Dispositif de fusion et d'application d'après la revendication 5 ou 6, caractérisé par le fait que, pour la sûreté du réservoir d'approvisionnement (17) est prévu un verrou (19') qui opère conjointement avec un discontacteur (25) de telle manière que, en position de déverrouillage du verrou (19'), l'organe de déplacement (14) ne peut être actionné.
8. Dispositif de fusion et d'application d'après l'une des revendications 2 à 7, caractérisé par le fait qu'un relais temporisé relié au premier fin de course (9) est prévu, grâce auquel, en cas de défaut de granulés de colle à fusion (18) dans la chambre de fusion (4), un organe de blocage, connu en soi, peut, du côté entrée de la machine à plaquer les chants au défilé, être mis en position de blocage de telle manière qu'aucune pièce à travailler ne puisse plus être introduite.
EP82101725A 1981-03-12 1982-03-05 Dispositif de fusion et de dépôt d'adhésif fusible Expired EP0061040B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82101725T ATE14682T1 (de) 1981-03-12 1982-03-05 Schmelz- und auftragsvorrichtung fuer schmelzkleber.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3109369A DE3109369C2 (de) 1981-03-12 1981-03-12 Schmelz- und Auftragsvorrichtung für Schmelzkleber
DE3109369 1981-03-12

Publications (3)

Publication Number Publication Date
EP0061040A2 EP0061040A2 (fr) 1982-09-29
EP0061040A3 EP0061040A3 (en) 1983-08-03
EP0061040B1 true EP0061040B1 (fr) 1985-08-07

Family

ID=6126974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101725A Expired EP0061040B1 (fr) 1981-03-12 1982-03-05 Dispositif de fusion et de dépôt d'adhésif fusible

Country Status (7)

Country Link
US (1) US4441450A (fr)
EP (1) EP0061040B1 (fr)
JP (1) JPS57162664A (fr)
AT (1) ATE14682T1 (fr)
AU (1) AU554654B2 (fr)
DE (1) DE3109369C2 (fr)
ES (1) ES510329A0 (fr)

Families Citing this family (24)

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Publication number Priority date Publication date Assignee Title
DE3447662C2 (de) * 1984-12-28 1994-02-03 Hornberger Maschbau Gmbh Schmelzvorrichtung zum Aufschmelzen von festem, vorzugsweise in Granulatform vorliegendem Schmelzkleber
FR2579114B1 (fr) * 1985-03-22 1988-06-24 Reckitt Colman Installation perfectionnee pour la distribution de colle thermofusible
GB8723252D0 (en) * 1987-10-03 1987-11-04 Bostik Ltd Applicators for hot-melt materials
DE9213638U1 (fr) * 1992-10-09 1993-01-14 Reinhard Duespohl Maschinenbau Gmbh, 4830 Guetersloh, De
FR2787770B1 (fr) * 1998-12-29 2001-02-23 Jpb Creations Procede et dispositif de remplissage automatique d'un bac chauffant avec un produit solide
US8201717B2 (en) * 2006-01-17 2012-06-19 Nordson Corporation Apparatus and method for melting and dispensing thermoplastic material
DE202009016024U1 (de) * 2009-11-18 2010-02-18 Reich Spezialmaschinen Gmbh Vorrichtung zum Bereitstellen von schmelzflüssigem Kleber
AU2011205506B2 (en) 2010-01-14 2014-01-16 Nordson Corporation Jetting discrete volumes of high viscosity liquid
US9169088B2 (en) 2012-09-20 2015-10-27 Nordson Corporation Adhesive dispensing device having optimized cyclonic separator unit
US9304028B2 (en) 2012-09-20 2016-04-05 Nordson Corporation Adhesive dispensing device having optimized reservoir and capacitive level sensor
US10099242B2 (en) 2012-09-20 2018-10-16 Nordson Corporation Adhesive melter having pump mounted into heated housing
US9200741B2 (en) 2012-10-25 2015-12-01 Nordson Corporation Adhesive dispensing system and method using smart melt heater control
US9120115B2 (en) 2012-10-25 2015-09-01 Nordson Corporation Dispensing systems and methods for monitoring actuation signals for diagnostics
US9427768B2 (en) 2012-10-26 2016-08-30 Nordson Corporation Adhesive dispensing system and method with melt on demand at point of dispensing
US20140116569A1 (en) * 2012-10-26 2014-05-01 Nordson Corporation Fill system and method including visual indicator device for empty condition
US9243626B2 (en) 2012-11-19 2016-01-26 Nordson Corporation Adhesive dispensing system and method including a pump with integrated diagnostics
US9574714B2 (en) 2013-07-29 2017-02-21 Nordson Corporation Adhesive melter and method having predictive maintenance for exhaust air filter
JP2016104855A (ja) * 2014-11-05 2016-06-09 ノードソン コーポレーションＮｏｒｄｓｏｎ Ｃｏｒｐｏｒａｔｉｏｎ ホットメルト接着剤タンクを充填するシステム及び方法
DE102017111013A1 (de) 2017-05-19 2018-11-22 Holz-Her Gmbh Kleberauftragsvorrichtung
CN107824400B (zh) * 2017-12-22 2023-06-13 奥音新材料（镇江）有限公司 一种扬声器生产专用点胶组件
DE102018003256B3 (de) 2018-04-21 2019-03-07 Lsi Ludwig Schleicher Ingenium Gmbh & Co. Kg Anlage zum Versprühen eines Hotmelt-Klebers
EP4140598A1 (fr) * 2021-08-25 2023-03-01 HOLZ-HER GmbH Dispositif de fusion d'adhésif pour une machine à plaquer des chants
EP4140599A1 (fr) 2021-08-25 2023-03-01 HOLZ-HER GmbH Dispositif de fusion d'adhésif pour une machine à plaquer des chants
DE202021105873U1 (de) 2021-10-27 2023-01-30 Maschinenbau Hebrock GmbH Kantenanleimmaschine mit pneumatischer Klebergranulatförderung

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US2388805A (en) * 1944-09-15 1945-11-13 Metal Specialties Co Inc Fuel stoker
US3177846A (en) * 1962-09-13 1965-04-13 Haut S Dev Co Inc Jelly dropper for cookie making machines
US3907170A (en) * 1970-08-20 1975-09-23 Ivan Vasilievich Schedrin Machine for application of powderlike material onto lining or surface of structure
DE2105037A1 (de) * 1971-02-03 1972-08-17 Bostik Gmbh, 6370 Oberursel Verfahren und Vorrichtung zur Abgabe von aus Granulat erschmolzenem Schmelzkleber
US3817206A (en) * 1972-05-26 1974-06-18 W Case Apparatus for coating edible material
DE2731799C3 (de) * 1977-07-14 1984-10-18 Reich Spezialmaschinen GmbH, 7440 Nürtingen Kantenanleimmaschine mit einer Schmelzkammer
US4181794A (en) * 1978-08-28 1980-01-01 Gulf Oil Corporation Method for manufacture of olefin polymer fibrils

Also Published As

Publication number Publication date
DE3109369C2 (de) 1984-01-12
AU8135882A (en) 1982-09-16
ATE14682T1 (de) 1985-08-15
EP0061040A3 (en) 1983-08-03
AU554654B2 (en) 1986-08-28
ES8303126A1 (es) 1983-02-01
US4441450A (en) 1984-04-10
JPS57162664A (en) 1982-10-06
DE3109369A1 (de) 1982-09-23
EP0061040A2 (fr) 1982-09-29
ES510329A0 (es) 1983-02-01

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