EP0913203A1 - Méthode et appareil de revêtement par poudre avec alimentation d'air de purge - Google Patents

Méthode et appareil de revêtement par poudre avec alimentation d'air de purge Download PDF

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Publication number
EP0913203A1
EP0913203A1 EP98115238A EP98115238A EP0913203A1 EP 0913203 A1 EP0913203 A1 EP 0913203A1 EP 98115238 A EP98115238 A EP 98115238A EP 98115238 A EP98115238 A EP 98115238A EP 0913203 A1 EP0913203 A1 EP 0913203A1
Authority
EP
European Patent Office
Prior art keywords
powder
air
spray
injector
spray coating
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
EP98115238A
Other languages
German (de)
English (en)
Other versions
EP0913203B1 (fr
Inventor
Felix Mauchle
Heinz HÖFLER
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.)
Gema Switzerland GmbH
Original Assignee
Gema Switzerland 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 Gema Switzerland GmbH filed Critical Gema Switzerland GmbH
Publication of EP0913203A1 publication Critical patent/EP0913203A1/fr
Application granted granted Critical
Publication of EP0913203B1 publication Critical patent/EP0913203B1/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
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/1472—Powder extracted from a powder container in a direction substantially opposite to gravity by a suction device dipped into the powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1481—Spray pistols or apparatus for discharging particulate material
    • B05B7/1486—Spray pistols or apparatus for discharging particulate material for spraying particulate material in dry state

Definitions

  • Powder line usually a hose
  • the Spray device from time to time from deposited To clean powder particles. This is necessary to get one uncontrolled leakage of deposited, old Avoid powder particles, as these can disrupt the coated surface of an object.
  • the powder hose and the Spray device is normally supplied to the compressed air Injector and connected by the injector and the Powder hose through the spraying device blown.
  • a disadvantage of this known type of flushing in that the purge air is not just for spraying flows, but also in the injector on others to him splits connected lines.
  • the High voltage for the electrode 14 can be from one High voltage generator are generated, which in the Spray device 2 or be arranged externally can.
  • the spray element 4 is located on the downstream End of a powder channel 18 of the spray device 2, whose upstream beginning 20 via a Powder line 22 to the powder outlet 24 of an injector 26 is connected.
  • the powder outlet 24 is located Delivery air inlet 28 axially opposite, which via a Conveying air line 30, in which there is a pressure regulator 32 is located, and a distributor 34 to a pressure source 36 is connected.
  • An injector channel 38 has adjacent to the supply air inlet 28 one Vacuum area 40 with an enlarged diameter and then a smaller one in cross section Powder outlet channel 42.
  • the intake pipe 26 is on its from the injector 26 facing away lower end portion 64 with a Equalizing air inlet 66 through which Compressed air as compensation air in the intake pipe 46 is promoted to arise in the intake pipe 36 Compensate or dampen pressure fluctuations.
  • a compensation air line 68 in which there is a pressure regulator 70 can, to the distributor 34 of the compressed air source 36 connected.
  • the balance air is both during the powder feed as well during Powder feed breaks with constant pressure and constant air rate supplied.
  • 1 is the Powder line 22 a hose, which on a more than half the length upstream Hose part 22-1 and one much less than that half hose length making up short hose part 22-2 is divided.
  • the two hose parts 22-1 and 22-2 are through the purge air inlet 73, which is one has annular slot nozzle 74 with each other connected.
  • the purge air flows from the slot nozzle 74 through the downstream hose section 22-2 and thereafter through the spray device 2 without part of it Purge air in the opposite direction to the injector 26 flows.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Nozzles (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Coating Apparatus (AREA)
EP98115238A 1997-11-03 1998-08-13 Méthode et appareil de revêtement par poudre avec alimentation d'air de purge Expired - Lifetime EP0913203B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19748375A DE19748375A1 (de) 1997-11-03 1997-11-03 Verfahren und Vorrichtung zum Pulver-Sprühbeschichten
DE19748375 1997-11-03

Publications (2)

Publication Number Publication Date
EP0913203A1 true EP0913203A1 (fr) 1999-05-06
EP0913203B1 EP0913203B1 (fr) 2004-03-17

Family

ID=7847359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98115238A Expired - Lifetime EP0913203B1 (fr) 1997-11-03 1998-08-13 Méthode et appareil de revêtement par poudre avec alimentation d'air de purge

Country Status (5)

Country Link
US (1) US6217654B1 (fr)
EP (1) EP0913203B1 (fr)
JP (1) JPH11207214A (fr)
AT (1) ATE261777T1 (fr)
DE (2) DE19748375A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000015347A2 (fr) * 1998-09-17 2000-03-23 Nordson Corporation Dispositif de purge destine a un systeme de revetement en poudre
WO2006024417A1 (fr) * 2004-09-02 2006-03-09 Weitmann & Konrad Gmbh & Co. Kg Procede et dispositif pour realiser un melange poudre-air homogene
CN102632001A (zh) * 2012-04-19 2012-08-15 中冶京诚工程技术有限公司 一种粉末分流器
WO2014170374A1 (fr) * 2013-04-17 2014-10-23 Sames Technologies Pompe a effet venturi et installation d'application de revetement de peinture
EP1477231B2 (fr) † 2003-05-16 2021-12-01 Dürr Systems AG Dispositif pour la préservation des espaces creux

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0100756D0 (en) * 2001-01-11 2001-02-21 Powderject Res Ltd Needleless syringe
US20040250757A1 (en) * 2001-06-22 2004-12-16 Susumu Natsuyama Powder particle processing device
US20040004903A1 (en) * 2002-07-03 2004-01-08 Johnsondiversey, Inc. Apparatus and method of mixing and dispensing a powder
US6915966B2 (en) 2003-01-29 2005-07-12 Specialty Minerals (Michigan) Inc. Apparatus for the gunning of a refractory material and nozzles for same
JP2006193888A (ja) * 2005-01-11 2006-07-27 Handa Kikai Kk アスファルト溶液散布装置における散布ノズル洗浄装置
US7854397B2 (en) * 2005-01-21 2010-12-21 Specialty Minerals (Michigan) Inc. Long throw shotcrete nozzle
WO2006122281A2 (fr) * 2005-05-11 2006-11-16 Dürr Systems, Inc. Systeme de desengorgement de ligne de fluide
GB0708758D0 (en) * 2007-05-04 2007-06-13 Powderject Res Ltd Particle cassettes and process thereof
CN101678377B (zh) 2007-05-09 2013-06-12 诺信公司 具有内部过滤器的喷嘴
DE102011004352B4 (de) * 2011-02-18 2014-05-15 Gema Switzerland Gmbh Vorrichtung zum pneumatischen Fördern von Pulver
CN103331226B (zh) * 2013-07-04 2015-09-02 裕东（中山）机械工程有限公司 一种闭路循环的自动清理供粉装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314669A (en) * 1978-11-14 1982-02-09 Gema Ag Method for spraying powdered to granular bulk material
EP0204437A2 (fr) * 1985-05-09 1986-12-10 Nordson Corporation Pistolets de pulvérisation de poudre
DE3542710A1 (de) * 1985-12-03 1987-06-04 Bohnacker Tegometall Vorrichtung zum farbpulvereinzug beim pulverlackieren
WO1994013405A1 (fr) * 1992-12-17 1994-06-23 Nordson Corporation Systeme d'enduction de poudre perfectionne pour des poudres difficiles a manipuler
DE19519092A1 (de) * 1994-05-24 1995-11-30 I T M Corp Pneumatisch beschicktes Pulverzuführungssystem sowie Vorrichtung zur Pulverbeschichtung
EP0689875A2 (fr) * 1994-07-02 1996-01-03 ITW Gema AG Dispositif pneumatique pour transporter de la poudre, notamment de la poudre de revêtement

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3625404A (en) 1969-06-02 1971-12-07 Ransburg Electro Coating Corp Apparatus and method for dispensing particulate material
BE790830A (fr) 1971-11-02 1973-02-15 Nordson Corp Pulverisateur electrostatique
BR7907388A (pt) 1978-11-14 1980-08-05 Gema Ag Processo e dispositivo atomizador especialmente para revestimento de objetos com po atomizado
US4824295A (en) 1984-12-13 1989-04-25 Nordson Corporation Powder delivery system
US4987001A (en) * 1989-02-09 1991-01-22 Nordson Corporation Method and apparatus for coating the interior surface of hollow, tubular articles
DE8915968U1 (de) 1989-08-11 1992-12-17 Gema Volstatic Ag, St. Gallen Elektrostatische Pulverbeschichtungseinrichtung
US5520735A (en) * 1992-06-30 1996-05-28 Nordson Corporation Nozzle assembly and system for applying powder to a workpiece
US5454256A (en) 1992-08-13 1995-10-03 Nordson Corporation Powder coating system with dew-point detection
US5341989A (en) * 1993-02-16 1994-08-30 Nordson Corporation Electrostatic powder spray gun with hose purge adaptor
JP3489035B2 (ja) 1993-04-07 2004-01-19 ノードソン株式会社 粉体塗布装置
DE4319726A1 (de) 1993-06-15 1994-12-22 Gema Volstatic Ag Pulverfördereinrichtung
DE4419987A1 (de) 1994-06-08 1996-02-29 Gema Volstatic Ag Injektor-Fördervorrichtung zur pneumatischen Förderung von Pulver
DE4446798A1 (de) 1994-12-24 1996-06-27 Gema Volstatic Ag Luftzufuhrgerät einer Pulverbeschichtungsanlage
DE59610361D1 (de) 1995-09-18 2003-05-28 Elpatronic Ag Bergdietikon Verfahren zur Förderung eines pulverförmigen Gutes mittels eines Injectors
DE19538926A1 (de) 1995-10-19 1997-04-24 Gema Volstatic Ag Vorrichtung zur Pulverbeschichtung
DE19548607A1 (de) 1995-12-23 1997-06-26 Gema Volstatic Ag Pulver-Sprühbeschichtungsvorrichtung
DE19613967A1 (de) 1996-04-09 1997-10-16 Gema Volstatic Ag Vorrichtung zur Sprühbeschichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4314669A (en) * 1978-11-14 1982-02-09 Gema Ag Method for spraying powdered to granular bulk material
EP0204437A2 (fr) * 1985-05-09 1986-12-10 Nordson Corporation Pistolets de pulvérisation de poudre
DE3542710A1 (de) * 1985-12-03 1987-06-04 Bohnacker Tegometall Vorrichtung zum farbpulvereinzug beim pulverlackieren
WO1994013405A1 (fr) * 1992-12-17 1994-06-23 Nordson Corporation Systeme d'enduction de poudre perfectionne pour des poudres difficiles a manipuler
DE19519092A1 (de) * 1994-05-24 1995-11-30 I T M Corp Pneumatisch beschicktes Pulverzuführungssystem sowie Vorrichtung zur Pulverbeschichtung
EP0689875A2 (fr) * 1994-07-02 1996-01-03 ITW Gema AG Dispositif pneumatique pour transporter de la poudre, notamment de la poudre de revêtement

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000015347A2 (fr) * 1998-09-17 2000-03-23 Nordson Corporation Dispositif de purge destine a un systeme de revetement en poudre
WO2000015347A3 (fr) * 1998-09-17 2000-05-25 Nordson Corp Dispositif de purge destine a un systeme de revetement en poudre
US6223997B1 (en) 1998-09-17 2001-05-01 Nordson Corporation Quick color change powder coating system
US6375093B1 (en) 1998-09-17 2002-04-23 Nordson Corporation Quick color change powder coating system
EP1477231B2 (fr) † 2003-05-16 2021-12-01 Dürr Systems AG Dispositif pour la préservation des espaces creux
WO2006024417A1 (fr) * 2004-09-02 2006-03-09 Weitmann & Konrad Gmbh & Co. Kg Procede et dispositif pour realiser un melange poudre-air homogene
US7607451B2 (en) 2004-09-02 2009-10-27 Weitmann & Konrad Gmbh & Co. Kg Device and method for the production of a powder-air mixture
CN102632001A (zh) * 2012-04-19 2012-08-15 中冶京诚工程技术有限公司 一种粉末分流器
WO2014170374A1 (fr) * 2013-04-17 2014-10-23 Sames Technologies Pompe a effet venturi et installation d'application de revetement de peinture
FR3004767A1 (fr) * 2013-04-17 2014-10-24 Sames Technologies Pompe a effet venturi et installation d'application de revetement de peinture
US9636695B2 (en) 2013-04-17 2017-05-02 Sames Technologies Venturi pump and facility for applying paint coatings

Also Published As

Publication number Publication date
EP0913203B1 (fr) 2004-03-17
DE19748375A1 (de) 1999-05-06
JPH11207214A (ja) 1999-08-03
ATE261777T1 (de) 2004-04-15
US6217654B1 (en) 2001-04-17
DE59810986D1 (de) 2004-04-22

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