EP0719592A2 - Buse pour l'application de colle - Google Patents

Buse pour l'application de colle Download PDF

Info

Publication number
EP0719592A2
EP0719592A2 EP95120453A EP95120453A EP0719592A2 EP 0719592 A2 EP0719592 A2 EP 0719592A2 EP 95120453 A EP95120453 A EP 95120453A EP 95120453 A EP95120453 A EP 95120453A EP 0719592 A2 EP0719592 A2 EP 0719592A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
channel
water
glue
unit according
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.)
Granted
Application number
EP95120453A
Other languages
German (de)
English (en)
Other versions
EP0719592B1 (fr
EP0719592A3 (fr
Inventor
Heinz Focke
Michael Schlenker
Peter Kainz
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.)
Focke and Co GmbH and Co KG
Original Assignee
hhs Leimauftrags-Systeme GmbH
Focke and Co GmbH and Co KG
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
Priority claimed from DE4447016A external-priority patent/DE4447016A1/de
Application filed by hhs Leimauftrags-Systeme GmbH, Focke and Co GmbH and Co KG filed Critical hhs Leimauftrags-Systeme GmbH
Publication of EP0719592A2 publication Critical patent/EP0719592A2/fr
Publication of EP0719592A3 publication Critical patent/EP0719592A3/fr
Application granted granted Critical
Publication of EP0719592B1 publication Critical patent/EP0719592B1/fr
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
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/12—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • 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

Definitions

  • the invention relates to a nozzle assembly for processing hardening materials, in particular for applying glue to surfaces to be connected by gluing, such as folding tabs of packaging, with a nozzle channel which adjoins a nozzle chamber and leads to the outside.
  • the invention has for its object nozzle assemblies for the processing of particularly quick-curing glue to further develop and improve such that the risk of undesirable glue residues in the nozzle assembly is avoided and even longer downtimes do not lead to malfunctions in the nozzle assembly.
  • the nozzle assembly according to the invention is characterized in that at least a section of the nozzle channel is filled with a sealing liquid, in particular water, for longer interruptions in operation, the liquid being able to be conveyed out of the nozzle channel when it is restarted.
  • a sealing liquid in particular water
  • the liquid in particular water, is a particularly well-suited material for temporarily sealing a region of the nozzle channel on the orifice side.
  • the glue present in the nozzle unit when the operation is interrupted cannot harden in this way, but is fully usable when it is put into operation again, namely flowable.
  • the water or the like used for temporary sealing is conducted to the nozzle or to the nozzle channel via a separate water channel. This is closed to the outside during the interruption of operation and after the water has been supplied, in particular by a shut-off device located at the mouth of the nozzle channel.
  • nozzle assembly or the nozzle chamber and a closure member in the nozzle chamber.
  • the latter is provided with a nozzle head, which brings about an end limitation of the nozzle chamber in the geometric shape of a spherical spherical cap. This avoids cavities in which glue residues can be collected.
  • the closure member is also designed in a special way to solve the problem, namely with a preferably central longitudinal bore for receiving a pressure member (spring) and with connecting channels of the longitudinal bore opening into the region of a conical closure head with the valve chamber.
  • the drawing shows the nozzle assembly in a longitudinal section.
  • the nozzle assembly shown as an exemplary embodiment is used in particular for applying small, punctiform portions of glue to documents, in particular to folding tabs of packaging made of cardboard or the like.
  • a nozzle housing 10 forms a nozzle chamber 11 on the inside. This is surrounded by a housing jacket 12 with a circular or polygonal, in particular hexagonal, cross section.
  • a glue channel 13 directed transversely axially adjoins the nozzle chamber. This is connected via a line 14 to a glue supply or a glue pump.
  • the nozzle housing 10 On the side opposite the glue channel 13, the nozzle housing 10 forms a nozzle head 15. An elongated nozzle channel 16 runs in this, which leads from the nozzle chamber 11 to a nozzle mouth 17. The glue - or another flowable substance - is conveyed to the outside via the nozzle channel 16.
  • a closure member 18 is slidably mounted in the longitudinal direction.
  • An end of the closure member facing the nozzle channel 16 is formed with a converging cross section, in the present case with a conical closure head 19.
  • a tapering end of this closure head 19 enters the nozzle channel 16 for temporary closure thereof. This closed position is shown in the drawing.
  • the closure member 18 can be moved back and forth in the longitudinal direction with a small stroke.
  • the movements of the closure member 18 are carried out electromagnetically.
  • the nozzle housing 10 has an electrical coil 20 for this purpose.
  • the closure member 18 acts on electrical Acting on the coil 20 like a core is withdrawn from the closed position.
  • closure member 18 In the direction of the closed position, the closure member 18 is acted upon by an elastic member, in the present case by a (helical) spring 21. This is seated in a preferably central longitudinal bore 22 of the closure member 18. A free end is supported on a fixed stop 23 inside the nozzle chamber 11.
  • the bolt-like stop 23 also serves as a stop for the closure member 18th
  • Glue can penetrate into the longitudinal bore 22 via the open side.
  • a special feature of the nozzle assembly is that an inner end of the longitudinal bore 22 is connected to the nozzle chamber 11 via transverse or oblique connection bores 24. Glue can therefore flow through the longitudinal bore 22 in the longitudinal direction.
  • nozzle assembly consists in the design of the nozzle head 15. This consists of an end piece 25 of the nozzle chamber 11 and an adjoining end piece 26.
  • the connecting piece 25 and the end piece 26 are separate parts which are sealingly pressed against one another in the region of an abutting surface are, in the present case by a hollow nut 27th
  • the nozzle channel 16 extends centrally through the connector 25 and through the end piece 26. In the area of the connector 25, the nozzle channel 16 is formed here with a constant diameter. In the area of the end piece 26, the nozzle channel 16 has a conical cross section that tapers towards the nozzle mouth 17.
  • the end piece 25 delimits the end region of the nozzle chamber 11 and forms a kind of valve seat for the closure head 19 in the area of the nozzle channel 16.
  • the end piece 25 is designed on the inside in such a way that no cavities arise in which glue can collect.
  • the end piece 25 closes offset to the housing jacket 12.
  • An inner boundary surface 28 of the nozzle chamber 11 is arched in the area of the end piece 25, namely hemispherical. Due to this surface design, the glue is always directed in the direction of the nozzle channel 16.
  • the end piece 25 consists of a particularly strong material, in particular ceramic.
  • the end piece 26 is preferably made of plastic, which due to its technological property prevents glue from adhering.
  • An external shut-off device 29 is assigned to the nozzle assembly or the nozzle head 15.
  • this is a movably mounted finger which can be moved synchronously with the nozzle assembly and which bears against the nozzle mouth 17 in the closed position, in particular in the event of a long shutdown.
  • a sealing piece 30 made of elastic material is arranged in the contact area. This rests on the end piece 26 in the closed position.
  • An important feature is measures with which setting or drying out of glue in the region of the nozzle channel 16 is prevented when the business is interrupted, even during longer breaks.
  • the nozzle channel 16 or a section thereof facing the nozzle mouth 17 is flushed out with a flowing medium, in particular a liquid. Water is preferably used for this, optionally with additives adapted to the glue.
  • the liquid remains in the nozzle channel 16 or in this end section 31 and effects a liquid seal to the outside.
  • the shut-off device 29 is in the closed position shown.
  • the liquid in particular the water, is supplied via a separate channel, namely via a water channel 32 running transversely to the nozzle channel 16. This runs in the end piece 26 and opens into the nozzle channel 16.
  • a continuation of the water channel 32 extends in a manner connected to the nozzle housing 10 Bracket 33.
  • the water channel 32 is connected to a transverse, namely parallel to the nozzle housing 10 supply channel 34. This is connected to a water source or a pump via a water line 35.
  • the nozzle unit is operated as follows: at the beginning of an interruption in operation, the supply of glue is interrupted and water is conveyed via the water line 35 and the water channel 32. As a result, the glue located in the nozzle channel 16 in the region of the end section 31 is rinsed out. Then the nozzle mouth 17 is closed by the shut-off device 29. The end section of the nozzle channel 16 now remains filled with water, while glue remains in the rest of the same and in the nozzle chamber 11. No more water is added, so that only the system of water channels 32, 34 and the end section 31 of the nozzle channel 16 are filled with water.
  • the shut-off device 29 When the nozzle unit is started up again, the shut-off device 29 is first moved into the open position and then glue is conveyed. By means of this inflowing glue, the water is first conveyed out of the nozzle channel 16. Then the nozzle assembly is operational again.
  • nozzle assembly can be used in combination with one another, but also separately for each.

Landscapes

  • Coating Apparatus (AREA)
  • Nozzles (AREA)
  • Package Closures (AREA)
EP95120453A 1994-12-30 1995-12-22 Buse pour l'application de colle Expired - Lifetime EP0719592B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4447016 1994-12-30
DE4447016A DE4447016A1 (de) 1994-12-30 1994-12-30 Düsenaggregat zum Auftragen von Leim
US08/582,097 US5915625A (en) 1994-12-30 1996-01-02 Nozzle unit for applying glue

Publications (3)

Publication Number Publication Date
EP0719592A2 true EP0719592A2 (fr) 1996-07-03
EP0719592A3 EP0719592A3 (fr) 1997-05-02
EP0719592B1 EP0719592B1 (fr) 2003-03-26

Family

ID=25943418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95120453A Expired - Lifetime EP0719592B1 (fr) 1994-12-30 1995-12-22 Buse pour l'application de colle

Country Status (3)

Country Link
US (1) US5915625A (fr)
EP (1) EP0719592B1 (fr)
JP (1) JPH08252487A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720066A1 (de) * 1997-05-14 1998-11-19 Evotec Biosystems Gmbh Vorrichtung zum Erzeugen und Ausstoßen kleiner Tropfen eines Nutzfluids
DE19814491A1 (de) * 1998-04-01 1999-10-07 Voith Sulzer Papiertech Patent Verfahren und Vorrichtung zur Vermeidung oder Beseitigung von Verstopfungen im Dosierspalt eines Düsenauftragswerks
EP1918097A2 (fr) 2006-10-31 2008-05-07 MAN Roland Druckmaschinen AG Système d'application d'agent adhésif dans une presse et procédé de fabrication d'un bloc d'écriture ou bloc-notes
DE102007029064A1 (de) 2007-06-21 2008-12-24 Focke & Co.(Gmbh & Co. Kg) Ventil, insbesondere Leimventil
EP2835180A1 (fr) 2013-08-06 2015-02-11 Robatech AG Dispositif de distribution de produits fluides
EP2835181A1 (fr) 2013-08-06 2015-02-11 Robatech AG Dispositif de distribution de produits fluides
EP2878382A1 (fr) 2013-11-29 2015-06-03 Müller Martini Holding AG Procédé et dispositif d'application d'un produit coulant

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0310034D0 (en) * 2003-04-30 2003-06-04 British American Tobacco Co Improvements relating to material application to rod wrappers
US7296706B2 (en) * 2004-02-24 2007-11-20 Nordson Corporation Method and system for supporting and/or aligning components of a liquid dispensing system
USD536421S1 (en) 2004-04-02 2007-02-06 Nordson Corporation Intake portion of a liquid dispensing valve
US7278550B2 (en) * 2004-11-11 2007-10-09 Nordson Corporation Method and system for aligning components of a liquid dispensing system
US7708208B1 (en) * 2006-10-02 2010-05-04 Ingo Werner Scheer Method and apparatus to disintegrate liquids having a tendency to solidify
DE102009022496A1 (de) * 2009-05-25 2011-01-05 Focke & Co.(Gmbh & Co. Kg) Ventil, insbesondere Leimventil
WO2020023875A1 (fr) * 2018-07-27 2020-01-30 Oxicool, Inc. Électrovanne encaspulée

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908869A (en) * 1974-01-22 1975-09-30 Gen Electric Method and apparatus for dispensing air-curable viscous materials
US3940063A (en) * 1975-05-30 1976-02-24 Nalco Chemical Company Apparatus for spray-coating product onto an article

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753529A (en) * 1972-01-26 1973-08-21 Bird Machine Co Spray apparatus
US3977609A (en) * 1974-01-11 1976-08-31 Longwood Machine Works, Incorporated Atomizer
DE2900176A1 (de) * 1979-01-04 1980-07-24 Bosch Gmbh Robert Einspritzventil fuer kraftstoffeinspritzanlagen
DE3634137A1 (de) * 1986-10-07 1988-04-21 Willett Int Ltd Verfahren und vorrichtung zum diskontinuierlichen aufbringen eines aushaertenden stoffes auf einen gegenstand
US4928882A (en) * 1988-03-29 1990-05-29 Cashew Company, Ltd. Coating gun
US4895603A (en) * 1988-12-19 1990-01-23 Philip Morris Incorporated Apparatus and method for in-place cleaning and priming of a nozzle assembly
SE466339B (sv) * 1990-06-19 1992-02-03 Ericsson Telefon Ab L M Kantfoeljaraggregat
US5044555A (en) * 1990-07-23 1991-09-03 Herrmidifier Company, Inc. Self-cleaning solenoid controlled water spray nozzle and valve assembly
GB2267664B (en) * 1992-05-12 1996-09-04 Peter John Rawlings A shower
DE9316085U1 (de) * 1993-10-21 1994-02-10 Nordson Corp., Westlake, Ohio Auftragskopf für das Aufbringen von Kaltleim auf ein Substrat
US5435488A (en) * 1994-02-17 1995-07-25 Nordson Corporation Method and apparatus for discharging liquid through a nozzle having a hood
DE9405600U1 (de) * 1994-04-02 1994-06-16 ITW Dynatec Klebetechnik Holding GmbH, 40699 Erkrath Auftragskopf zur dosierten Abgabe von strömenden Medien

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908869A (en) * 1974-01-22 1975-09-30 Gen Electric Method and apparatus for dispensing air-curable viscous materials
US3940063A (en) * 1975-05-30 1976-02-24 Nalco Chemical Company Apparatus for spray-coating product onto an article

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720066A1 (de) * 1997-05-14 1998-11-19 Evotec Biosystems Gmbh Vorrichtung zum Erzeugen und Ausstoßen kleiner Tropfen eines Nutzfluids
DE19814491A1 (de) * 1998-04-01 1999-10-07 Voith Sulzer Papiertech Patent Verfahren und Vorrichtung zur Vermeidung oder Beseitigung von Verstopfungen im Dosierspalt eines Düsenauftragswerks
EP1918097A2 (fr) 2006-10-31 2008-05-07 MAN Roland Druckmaschinen AG Système d'application d'agent adhésif dans une presse et procédé de fabrication d'un bloc d'écriture ou bloc-notes
RU2460925C2 (ru) * 2007-06-21 2012-09-10 Фокке Унд Ко. (Гмбх Унд Ко.Кг) Клапан, прежде всего клеевой клапан
WO2008155117A1 (fr) * 2007-06-21 2008-12-24 Focke & Co. (Gmbh & Co. Kg) Distributeur, notamment distributeur de colle
JP2010531415A (ja) * 2007-06-21 2010-09-24 フォッケ・ウント・コンパニー（ゲゼルシャフト・ミト・べシュレンクテル・ハフツング・ウント・コンパニー・コマンデイトゲゼルシャフト） 接着剤用の弁
DE102007029064A1 (de) 2007-06-21 2008-12-24 Focke & Co.(Gmbh & Co. Kg) Ventil, insbesondere Leimventil
CN101631979B (zh) * 2007-06-21 2012-10-10 佛克有限及两合公司 阀，特别是胶料阀
US9080686B2 (en) 2007-06-21 2015-07-14 Focke & Co. (Gmbh & Co. Kg) Valve, particularly glue valve
EP2835180A1 (fr) 2013-08-06 2015-02-11 Robatech AG Dispositif de distribution de produits fluides
EP2835181A1 (fr) 2013-08-06 2015-02-11 Robatech AG Dispositif de distribution de produits fluides
EP2878382A1 (fr) 2013-11-29 2015-06-03 Müller Martini Holding AG Procédé et dispositif d'application d'un produit coulant
US10183307B2 (en) 2013-11-29 2019-01-22 Mueller Martini Holding Ag Method for applying a flowable substance

Also Published As

Publication number Publication date
EP0719592B1 (fr) 2003-03-26
EP0719592A3 (fr) 1997-05-02
US5915625A (en) 1999-06-29
JPH08252487A (ja) 1996-10-01

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