EP0314049A3 - Powder spray gun with electrocinetic charging - Google Patents

Powder spray gun with electrocinetic charging Download PDF

Info

Publication number
EP0314049A3
EP0314049A3 EP88117691A EP88117691A EP0314049A3 EP 0314049 A3 EP0314049 A3 EP 0314049A3 EP 88117691 A EP88117691 A EP 88117691A EP 88117691 A EP88117691 A EP 88117691A EP 0314049 A3 EP0314049 A3 EP 0314049A3
Authority
EP
European Patent Office
Prior art keywords
charging
spray gun
powder
insulating material
electrocinetic
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.)
Withdrawn
Application number
EP88117691A
Other languages
German (de)
French (fr)
Other versions
EP0314049A2 (en
Inventor
Helmut Bauch
Wolfgang Kleber
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.)
VEB INFRAROT-ANLAGEN ORANIENBURG
Original Assignee
VEB INFRAROT-ANLAGEN ORANIENBURG
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 VEB INFRAROT-ANLAGEN ORANIENBURG filed Critical VEB INFRAROT-ANLAGEN ORANIENBURG
Publication of EP0314049A2 publication Critical patent/EP0314049A2/en
Publication of EP0314049A3 publication Critical patent/EP0314049A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/047—Discharge apparatus, e.g. electrostatic spray guns using tribo-charging

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Die Erfindung botrifft eine Sprühpistole mit elektrokineti­ scher Aufladung von pulverförmigem Material zum Zweck der elektrostatischen Beschichtung von Werkstücken mit Pulver­ lack. Das aufzutragende Plastpulvor wird beim pneumatischen Durchströmen eines ringspaltförmigen Isolierstoffkanals (8, 10) durch Überlagerung von triboelektrischen Effekten mit von diesen an einer passiven Ionisatorelektrode (61) ausgelösten Ionisationsprozessen aufgeladen. The invention relates to a spray gun with elektrokineti sheer charging of powdered material for the purpose of electrostatic coating of workpieces with powder paint. The plastic powder to be applied is used in the pneumatic Flowing through an annular-shaped insulating material channel (8, 10) by overlaying triboelectric effects with von triggered on a passive ionizer electrode (61) Ionization processes charged.

Erfindungsgemäß enthält der im Isolierstoffkanal (8, 10) angeordne­ te längliche Strömungsleitkörper (9, 10, 11) einen oder mehrere Abschnit­ te, die aus elektrisch halbleitendem Material bestehen oder eine solche Oberfläche besitzen und gegen die Ionisator­ elektrode und untereinander elektrisch isoliert sind. Da­ durch werden der Wirkungsbereich des Influenzionisators er­ weitert, die Pulveraufladung erhöht und funkenähnliche Gleitentladungen im Strömungskanal sowie Durchschläge der Kanalwand verhindert. According to the invention, the one in the insulating material duct (8, 10) contains te elongated flow guide (9, 10, 11) one or more sections te, which consist of electrically semiconducting material or possess such a surface and against the ionizer electrode and are electrically insulated from each other. There through he become the sphere of influence of the influencer continues, the powder charge increases and spark-like Sliding discharges in the flow channel and breakdowns of the Canal wall prevented.

EP88117691A 1987-10-27 1988-10-24 Powder spray gun with electrocinetic charging Withdrawn EP0314049A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD308300 1987-10-27
DD87308300A DD271611A3 (en) 1987-10-27 1987-10-27 SPRAY GUN WITH ELECTRIC KINETIC POWDER RECHARGE

Publications (2)

Publication Number Publication Date
EP0314049A2 EP0314049A2 (en) 1989-05-03
EP0314049A3 true EP0314049A3 (en) 1990-01-31

Family

ID=5593344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88117691A Withdrawn EP0314049A3 (en) 1987-10-27 1988-10-24 Powder spray gun with electrocinetic charging

Country Status (6)

Country Link
US (1) US4979680A (en)
EP (1) EP0314049A3 (en)
JP (1) JPH01148354A (en)
CA (1) CA1336130C (en)
DD (1) DD271611A3 (en)
HU (1) HU198406B (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460643B (en) * 1987-04-28 1989-11-06 Ac Greiff Ytbehandling Ab POWDER SPRAY DEVICE WITH A LONG-TURNED RINGOUS CHARGING CHANNEL
WO1992011950A1 (en) * 1991-01-11 1992-07-23 Jason Industries Limited Powder fluidising system
DE4141663C2 (en) * 1991-12-17 1996-09-19 Wagner Int Electrostatic powder coating gun
US5344082A (en) * 1992-10-05 1994-09-06 Nordson Corporation Tribo-electric powder spray gun
GB9225098D0 (en) 1992-12-01 1993-01-20 Coffee Ronald A Charged droplet spray mixer
US6880554B1 (en) * 1992-12-22 2005-04-19 Battelle Memorial Institute Dispensing device
US6105571A (en) * 1992-12-22 2000-08-22 Electrosols, Ltd. Dispensing device
EP0627265B1 (en) * 1993-06-02 1998-01-21 Matsuo Sangyo Co., Ltd. Frictional electrification gun
US5395046A (en) * 1993-10-25 1995-03-07 Nordson Corporation Hand-held spray gun with replaceable handle
GB9406255D0 (en) * 1994-03-29 1994-05-18 Electrosols Ltd Dispensing device
GB9406171D0 (en) * 1994-03-29 1994-05-18 Electrosols Ltd Dispensing device
GB9410658D0 (en) * 1994-05-27 1994-07-13 Electrosols Ltd Dispensing device
US5620138A (en) * 1994-11-09 1997-04-15 Nordson Corporation Powder coating gun mounted diffuser and air cooled heat sink in combination with low flow powder pump improvements
DE29500914U1 (en) * 1995-01-21 1995-03-09 Ophardt Technik KG, 47661 Issum Device for the triboelectric charging of powdery substances
US5622313A (en) * 1995-03-03 1997-04-22 Nordson Corporation Triboelectric powder spray gun with internal discharge electrode and method of powder coating
US5795626A (en) * 1995-04-28 1998-08-18 Innovative Technology Inc. Coating or ablation applicator with a debris recovery attachment
FR2750897B1 (en) * 1996-07-10 1998-09-18 Sames Sa TRIBOELECTRIC PROJECTOR, COATING PRODUCT PROJECTION INSTALLATION AND METHOD FOR CONTROLLING SUCH A PROJECTOR
US7193124B2 (en) 1997-07-22 2007-03-20 Battelle Memorial Institute Method for forming material
US6252129B1 (en) 1996-07-23 2001-06-26 Electrosols, Ltd. Dispensing device and method for forming material
GB2327895B (en) 1997-08-08 2001-08-08 Electrosols Ltd A dispensing device
US20040011901A1 (en) * 2000-07-10 2004-01-22 Rehman William R. Unipolarity powder coating systems including improved tribocharging and corona guns
US6645300B2 (en) 2000-07-11 2003-11-11 Nordson Corporation Unipolarity powder coating systems including improved tribocharging and corona guns
US20030038193A1 (en) * 2000-07-11 2003-02-27 Rehman William R. Unipolarity powder coating systems including improved tribocharging and corona guns
FR2820344B1 (en) 2001-02-08 2003-03-14 Eisenmann France Sarl TRIBOELECTRIC SPRAYER
US20040159282A1 (en) * 2002-05-06 2004-08-19 Sanner Michael R Unipolarity powder coating systems including improved tribocharging and corona guns
WO2006115122A1 (en) * 2005-04-20 2006-11-02 Kyoto University Particle charging controlling device and method
CN109647644B (en) * 2019-01-17 2024-04-02 常德天工机械有限公司 Spray gun for spraying paint inside air cylinder and paint spraying method
CN113000238A (en) * 2021-03-09 2021-06-22 马鞍山星苗智能装备有限公司 Electrostatic friction spray gun

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555547B2 (en) * 1975-12-10 1978-07-27 Hajtomuevek Es Festoeberendezesek, Gyara, Budapest Device for the electrostatic application or spraying of material particles
DD134841A1 (en) * 1978-03-22 1979-03-28 Peter Dressler APPARATUS FOR ELECTROKINETIC COATING WITH POWDER AND FIBER SOFT PARTICLES
DE3420325A1 (en) * 1984-05-30 1985-12-05 Ransburg-Gema AG, St.Gallen SPRAYING DEVICE FOR COATING ITEMS WITH POWDER
DD232595A3 (en) * 1984-02-08 1986-02-05 Verkehrswesen Hochschule DEVICE FOR ELECTROKINETIC CHARGING OF POWDER-FUSED SUBSTANCES
DE3600808A1 (en) * 1986-01-14 1987-07-16 Esb Voehringer ELECTROSTATIC POWDER SPRAYING DEVICE WITH TRIBOELECTRIC POWDER CHARGING

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE134841C (en) *
DE106308C (en) *
US4090666A (en) * 1976-05-19 1978-05-23 Coors Container Company Gun for tribo charging powder
US4135667A (en) * 1977-03-23 1979-01-23 Hajtomuvek Es Festoberendezesek Gyara Apparatus for the electrostatic coating of workpieces
SU761016A1 (en) * 1978-10-10 1980-09-07 Aleksandr Dubson Apparatus for applying polymer powdered coating in electric field
SU927327A1 (en) * 1980-09-08 1982-05-15 Московский Лесотехнический Институт Electrostatic spraying gun
US4498631A (en) * 1981-10-13 1985-02-12 Energy Innovations, Inc. Electrogasdynamic coating system
GB2118865B (en) * 1982-04-20 1985-09-25 Electropaint Ltd Coating apparatus
DE3412694A1 (en) * 1983-04-07 1984-10-11 Kopperschmidt-Mueller GmbH & Co KG, 7057 Winnenden METHOD AND DEVICE FOR ELECTROSTATICALLY SPRAYING ON POWDER PARTICLES ON A SURFACE TO BE COATED
JPS6282858A (en) * 1985-10-08 1987-04-16 Fuji Electric Co Ltd Network control system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2555547B2 (en) * 1975-12-10 1978-07-27 Hajtomuevek Es Festoeberendezesek, Gyara, Budapest Device for the electrostatic application or spraying of material particles
DD134841A1 (en) * 1978-03-22 1979-03-28 Peter Dressler APPARATUS FOR ELECTROKINETIC COATING WITH POWDER AND FIBER SOFT PARTICLES
DD232595A3 (en) * 1984-02-08 1986-02-05 Verkehrswesen Hochschule DEVICE FOR ELECTROKINETIC CHARGING OF POWDER-FUSED SUBSTANCES
DE3420325A1 (en) * 1984-05-30 1985-12-05 Ransburg-Gema AG, St.Gallen SPRAYING DEVICE FOR COATING ITEMS WITH POWDER
DE3600808A1 (en) * 1986-01-14 1987-07-16 Esb Voehringer ELECTROSTATIC POWDER SPRAYING DEVICE WITH TRIBOELECTRIC POWDER CHARGING

Also Published As

Publication number Publication date
CA1336130C (en) 1995-07-04
EP0314049A2 (en) 1989-05-03
HUT48134A (en) 1989-05-29
HU198406B (en) 1989-10-30
US4979680A (en) 1990-12-25
JPH01148354A (en) 1989-06-09
DD271611A3 (en) 1989-09-13

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