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EP0063244B1 - Dispositif d'application d'adhésifs - Google Patents

Dispositif d'application d'adhésifs Download PDF

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Publication number
EP0063244B1
EP0063244B1 EP82102262A EP82102262A EP0063244B1 EP 0063244 B1 EP0063244 B1 EP 0063244B1 EP 82102262 A EP82102262 A EP 82102262A EP 82102262 A EP82102262 A EP 82102262A EP 0063244 B1 EP0063244 B1 EP 0063244B1
Authority
EP
European Patent Office
Prior art keywords
adhesive
applicator
application
rinsing
slide
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
EP82102262A
Other languages
German (de)
English (en)
Other versions
EP0063244A2 (fr
EP0063244A3 (en
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 AT82102262T priority Critical patent/ATE15455T1/de
Publication of EP0063244A2 publication Critical patent/EP0063244A2/fr
Publication of EP0063244A3 publication Critical patent/EP0063244A3/de
Application granted granted Critical
Publication of EP0063244B1 publication Critical patent/EP0063244B1/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
    • 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
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • 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
    • 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
    • B05C5/0225—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 characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B05C5/0229—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 characterised by flow controlling means, e.g. valves, located proximate the outlet the valve being a gate valve or a sliding valve
    • B05C5/0233—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 characterised by flow controlling means, e.g. valves, located proximate the outlet the valve being a gate valve or a sliding valve rotating valve, e.g. rotating perforated cylinder

Definitions

  • the invention relates to an application device for adhesives, in particular for edge banding machines for continuous workpieces, according to the preamble of claim 1.
  • Such an application device is described in DE-A-2 731 799.
  • the hot melt adhesive in the form of cylindrical cartridges or granules is melted on the end melting wall of a melting chamber and fed under pressure to the nozzle body of an application device, from where it reaches the narrow surface of the plate-shaped workpiece via application holes.
  • contaminants such as. B. are small foreign bodies or dirt particles that are free during melting and migrate upwards due to their lower specific weight in the feed line of the nozzle body. There they can clog the application holes and prevent glue from being applied to the workpiece at this point. This affects the bond between the workpiece and the edge band.
  • a flushing device for flushing glue systems, a flushing device is known from DE-A-2 457 268, in which the glue-carrying channels can be flushed with water for cleaning. This device means additional effort and increases the cost of the entire machine. It has to be operated by hand and therefore delays the workflow.
  • Rinsing with water limits the use of the known rinsing device to water-soluble glues; this rinsing device cannot be used with hot melt adhesives. If there is contamination in the glue, it can get into the application nozzles during operation and clog them.
  • the invention is therefore based on the object of creating an application device for adhesives in which the contaminants are removed before application to the workpiece and thus clogging of the application bores is avoided. This object is achieved by the features specified in the characterizing part of claim 1.
  • the contaminants in the upper area of the liquid adhesive can escape through the flushing hole and no longer clog the upper application holes.
  • the adhesive is therefore applied correctly over the entire height of the narrow surface of the workpiece, thus ensuring a clean bond.
  • control slide automatically connects the feed line briefly to the flushing bore between two job positions, that is to say with each work cycle. So that a drop of liquid adhesive with the contaminants gets into the flushing hole and is transported from there to the outside, so that only a small amount of adhesive is lost.
  • control slide takes its rinsing position only after several work cycles, wherein the loss of adhesive can be reduced even further. This loss of adhesive is negligible anyway, since the opening time in the rinsing position is only approx. 0.3 s.
  • the flushing device according to the invention is particularly suitable for application devices with a melting chamber, in which the hot melt adhesive is melted in the form of cartridges or granules and applied to the narrow surface of the workpiece via an application nozzle.
  • the rinsing device can also be used for all types of glue and glue which are solid or liquid at room temperature, but which are fed directly to the workpiece, ie without glue circulation.
  • the application device shown schematically in FIG. 1 has a nozzle body 1, in which a control slide 3 is rotatably and longitudinally displaceably mounted in a slide bore 2.
  • the rotary movement takes place in a known manner by a compressed air piston, not shown, controlled by the workpiece, the longitudinal displacement serves to adjust the adhesive width to the height of the workpiece.
  • the slide bore 2 is connected to a feed line 4, which leads to a melting chamber, not shown.
  • a flushing bore 5 is arranged in the nozzle body 1, which opens into the upper region of the slide bore 2 and opens downwards into the open.
  • superimposed application bores 6 are also provided, which lead from the slide bore 2 into the open.
  • the control slide 3 is provided with a longitudinal channel 7, into which an application slot 8 and a flushing slot 9 open.
  • Fig. 2 shows the control slide 3 in a first position in which it connects the feed line 4 via the longitudinal channel 7 with the application holes 6, so that glue can get onto the narrow surface of the workpiece, not shown.
  • the flushing hole 5 is closed.
  • Fig. 3 shows a position of the control slide 3, in which the feed line 4 is completely shut off.
  • the control slide 3 finally connects the feed line 4 via the longitudinal channel 7 and the flushing slot 9 with the flushing bore 5, so that the adhesive located in the upper area of the longitudinal channel 7 with contaminants can escape into the open via the flushing hole 5.
  • the flushing slot 9 is arranged above the application slot 8 so that there is no connection to the application holes 6 in the operating state.
  • the control of the spool 3 is carried out in a known manner and such. B. described in DE-OS 2 731 799, via key switches which can be actuated from the front and rear edges of the workpiece. At the same time, a further switching element can be actuated, which briefly shifts the control slide 3 into its rinsing position between each work cycle or after several work cycles.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Coating Apparatus (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (4)

1. Dispositif d'application de colle, notamment pour machines à plaquer les chants au défilé, la colle pouvant être acheminée, via une conduite d'alimentation (4) à un corps de buse (1) muni d'orifices d'application (6), avec un tiroir de distribution (3) disposé dans le corps de buse (1 tiroir qui relie la conduite d'alimentation (4) aux orifices d'application (6) dans une première position et ferme celle-ci dans une deuxième position, caractérisé par le fait que le tiroir de distribution (3), logé dans un alésage pour tiroir (2), tout en pouvant tourner autour d'un axe et être déplacé, est doté d'un conduit longitudinal (7) dans lequel débouchent un orifice d'application (8) et un orifice de rinçage (9), et par le fait que dans le corps de buse (1) est prévu un alésage de rinçage (5) menant à l'air libre, qui, via l'orifice de rinçage (9) et le conduit longitudinal (7) relie le tiroir de distribution (3) à la conduite d'alimentation (4) dans une troisième position.
2. Dispositif d'application d'après la revendication 1, caractérisé par le fait que la sortie de l'alésage de rinçage (5) vers l'alésage du tiroir (2) est disposée au-dessus des alésages d'application (6).
3. Dispositif d'application d'après la revendication 1 ou 2, caractérisé par le fait que, entre deux premières positions destinées à l'application de la colle, le tiroir, de distribution (3) se met pour un court instant dans sa troisième position pour le rinçage.
4. Dispositif d'application d'après la revendication 1 ou 2, caractérisé par le fait que, après plusieurs premières positions successives, le tiroir de distribution (3) se met pour un court instant dans sa troisième position.
EP82102262A 1981-04-16 1982-03-19 Dispositif d'application d'adhésifs Expired EP0063244B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102262T ATE15455T1 (de) 1981-04-16 1982-03-19 Auftragsvorrichtung fuer kleber.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3115418 1981-04-16
DE3115418A DE3115418C2 (de) 1981-04-16 1981-04-16 Auftragsvorrichtung für Kleber

Publications (3)

Publication Number Publication Date
EP0063244A2 EP0063244A2 (fr) 1982-10-27
EP0063244A3 EP0063244A3 (en) 1983-08-03
EP0063244B1 true EP0063244B1 (fr) 1985-09-11

Family

ID=6130288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102262A Expired EP0063244B1 (fr) 1981-04-16 1982-03-19 Dispositif d'application d'adhésifs

Country Status (5)

Country Link
US (1) US4418640A (fr)
EP (1) EP0063244B1 (fr)
JP (1) JPS57180457A (fr)
AT (1) ATE15455T1 (fr)
DE (1) DE3115418C2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI891146L (fi) * 1989-03-10 1990-09-11 Vesi Pauli Oy Mundstycke, som aer laett att rena, foer dispersionsvatten.
CA2245485C (fr) * 1997-08-22 2001-11-06 E.I. Du Pont De Nemours And Company Procede et appareil d'encollage de chant
CN101097285B (zh) * 2006-06-30 2010-05-26 鸿富锦精密工业（深圳）有限公司 点胶装置
US8080729B2 (en) * 2008-11-24 2011-12-20 Palo Alto Research Center Incorporated Melt planarization of solar cell bus bars
US8960120B2 (en) * 2008-12-09 2015-02-24 Palo Alto Research Center Incorporated Micro-extrusion printhead with nozzle valves
US10371468B2 (en) 2011-11-30 2019-08-06 Palo Alto Research Center Incorporated Co-extruded microchannel heat pipes
US9120190B2 (en) 2011-11-30 2015-09-01 Palo Alto Research Center Incorporated Co-extruded microchannel heat pipes
US8875653B2 (en) 2012-02-10 2014-11-04 Palo Alto Research Center Incorporated Micro-extrusion printhead with offset orifices for generating gridlines on non-square substrates
CN105772332B (zh) * 2016-05-06 2019-01-15 深圳市朝阳光科技有限公司 一种通用型点胶头结构
CN108393981B (zh) * 2018-02-02 2020-06-30 顺德职业技术学院 一种木板外表面上胶处理装置
DE102018127617A1 (de) * 2018-11-06 2020-05-07 Homag Gmbh Verfahren und Vorrichtung zum Beschichten eines Werkstücks
EP4115989B1 (fr) * 2021-07-09 2024-11-13 HOLZ-HER GmbH Dispositif d'application de colle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731799A1 (de) * 1977-07-14 1979-01-18 Reich Maschf Gmbh Karl Verfahren und vorrichtung zum schmelzen und auftragen von schmelzkleber bei kantenanleimmaschinen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1115121B (de) * 1960-08-18 1961-10-12 Windmoeller & Hoelscher Vorrichtung zum Auftragen von Klebstoff auf eine laufende Bahn aus Papier od. dgl.
US3753529A (en) * 1972-01-26 1973-08-21 Bird Machine Co Spray apparatus
US3921905A (en) * 1974-11-11 1975-11-25 Hawaiian Sugar Planters & 0 As Soil irrigation methods and apparatus
DE2457268A1 (de) * 1974-12-04 1976-06-10 Karl Ayen Vorrichtung zum spuelen von leimanlagen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2731799A1 (de) * 1977-07-14 1979-01-18 Reich Maschf Gmbh Karl Verfahren und vorrichtung zum schmelzen und auftragen von schmelzkleber bei kantenanleimmaschinen

Also Published As

Publication number Publication date
JPS57180457A (en) 1982-11-06
US4418640A (en) 1983-12-06
DE3115418C2 (de) 1985-01-03
DE3115418A1 (de) 1982-11-11
EP0063244A2 (fr) 1982-10-27
ATE15455T1 (de) 1985-09-15
JPS6232981B2 (fr) 1987-07-17
EP0063244A3 (en) 1983-08-03

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