EP0105493A2 - Buse pour pistolet de pulvérisation, particulièrement pour la pulvérisation à basse pression - Google Patents

Buse pour pistolet de pulvérisation, particulièrement pour la pulvérisation à basse pression Download PDF

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Publication number
EP0105493A2
EP0105493A2 EP83109795A EP83109795A EP0105493A2 EP 0105493 A2 EP0105493 A2 EP 0105493A2 EP 83109795 A EP83109795 A EP 83109795A EP 83109795 A EP83109795 A EP 83109795A EP 0105493 A2 EP0105493 A2 EP 0105493A2
Authority
EP
European Patent Office
Prior art keywords
outlet opening
nozzle
compressed air
paint
nozzle needle
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Withdrawn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
EP83109795A
Other languages
German (de)
English (en)
Other versions
EP0105493A3 (fr
Inventor
Robert Beckersjürgen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0105493A2 publication Critical patent/EP0105493A2/fr
Publication of EP0105493A3 publication Critical patent/EP0105493A3/fr
Withdrawn legal-status Critical Current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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/3066—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the valve element being at least partially hollow and liquid passing through it when the valve is opened
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • 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
    • B05B7/0081—Apparatus supplied with low pressure gas, e.g. "hvlp"-guns; air supplied by a fan
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0433—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of gas surrounded by an external conduit of liquid upstream the mixing chamber
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet

Definitions

  • the invention relates to a nozzle for a spray gun, in particular low-pressure spray gun, surrounding with a color channel with an outlet opening and with an the outlet orifice ring opening for the exit of the exiting from the exit opening F arbstahl atomizing compressed air, wherein the color channel is coaxial to the discharge opening a Nozzle needle is arranged, which is pressed by a spring into a closed position in which its front end closes the outlet opening, and which is axially movable to release the outlet opening against the pressure of the spring.
  • Such low-pressure spray guns have the advantage that they work with little paint mist. However, they cannot always achieve a sufficiently fine atomization of the paint.
  • a nozzle of the type mentioned at the outset is designed such that at least the front end region of the nozzle needle is hollow and can be connected to the compressed air source.
  • compressed air is thus fed into the area of the outlet opening via the nozzle needle, so that it flows from the paint channel to the outlet opening guided ink jet not only atomizes the ink jet by means of the compressed air emerging from the ring opening, but also additionally by the compressed air from the nozzle needle added coaxially to the ink jet, i.e. compressed air acts both on the outside and inside of the ink jet emerging from the outlet opening and causes a fine atomization. It is essential that the compressed air does not mix with the paint inside the nozzle, so that no foamed paint-air mixture is released.
  • the atomizing effect of the compressed air jet emerging from the nozzle needle is particularly effective when the diameter of the bore provided in the at least front end region of the nozzle needle is equal to the diameter of the outlet opening.
  • the atomizing effect can be increased further in that the outlet opening is formed by a cylindrical wall region extending in the axial direction and the paint channel widens conically at the rear end of the cylindrical wall region.
  • the nozzle shown consists of an outer tubular body 1 and an inner tubular body 2 held coaxially therein.
  • the central opening of the outer nozzle cap 8 is significantly larger than the outlet opening 10 of the inner nozzle cap 9.
  • the front ends of the outer nozzle cap 8 and the inner nozzle cap 9 run in the shape of a truncated cone inward, so that an annular space 13 is formed between them, the diameter of which points in the direction of the front end of the outer nozzle cap 8 is reduced.
  • a nozzle needle 6 is held coaxially, which can be moved back and forth in the axial direction against spring pressure in a manner which is not shown, but is customary, so that it is released when the corresponding one is released Actuating lever is pressed by the spring in the figures to the left in the closed position ( Figure 2). (The deviations in the representation of the left part in FIG. 2 are based on drawing inaccuracies).
  • the nozzle needle 6 has a coaxial inner bore 7, the diameter of which is equal to the diameter of the outlet opening 10.
  • the annular paint channel 5 formed between the nozzle needle 7 and the inner tubular body 2 is connected via a connecting piece 3 to the paint reservoir, to which compressed air is supplied via a line (not shown). Accordingly, compressed air is also supplied to the annular space 4 formed between the inner tubular body 2 and the outer tubular body 1 and the bore 7 of the nozzle needle 6 in the spraying operation.
  • the nozzle needle 6 is shifted to the left in the figures, as is customary in known spray guns, so that it seals the outlet opening 10 from the paint channel 5 (FIG. 2), and then the compressed air supply to the annular space 4 and Hole 7 of the nozzle needle 6 interrupted.

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  • Nozzles (AREA)
EP83109795A 1982-09-30 1983-09-30 Buse pour pistolet de pulvérisation, particulièrement pour la pulvérisation à basse pression Withdrawn EP0105493A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8227445U 1982-09-30
DE19828227445U DE8227445U1 (de) 1982-09-30 1982-09-30 Dueseneinheit, mit zwei hintereinander liegenden abrisskanten

Publications (2)

Publication Number Publication Date
EP0105493A2 true EP0105493A2 (fr) 1984-04-18
EP0105493A3 EP0105493A3 (fr) 1985-08-21

Family

ID=6744134

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83109795A Withdrawn EP0105493A3 (fr) 1982-09-30 1983-09-30 Buse pour pistolet de pulvérisation, particulièrement pour la pulvérisation à basse pression

Country Status (2)

Country Link
EP (1) EP0105493A3 (fr)
DE (1) DE8227445U1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192390A2 (fr) * 1985-02-19 1986-08-27 Junkosha Co. Ltd. Procédé et appareil pour le traitement des surfaces
DE3824887A1 (de) * 1988-07-22 1990-01-25 Castolin Gmbh Duese fuer flammspritzbrenner
GB2227433A (en) * 1988-11-02 1990-08-01 United Technologies Corp Gas assisted liquid atomizer
US5090619A (en) * 1990-08-29 1992-02-25 Pinnacle Innovations Snow gun having optimized mixing of compressed air and water flows
EP0669100A1 (fr) * 1994-02-28 1995-08-30 IMMUNO Aktiengesellschaft Dispositif pour appliquer une colle de tissu à plusieurs composant
EP0682986A2 (fr) * 1994-05-11 1995-11-22 F.LLI TALAMONTI MACCHINE S.n.c. Pistolet de pulvérisation pour l'application de colle
EP0755720A1 (fr) * 1995-07-28 1997-01-29 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé et dipositif de pulvérisation d'un produit liquide
FR2779805A1 (fr) 1998-06-15 1999-12-17 Air Liquide Injecteur de combustible sous forme de brouillard pour bruleur a fioul et bruleur muni d'un tel injecteur
US6860870B2 (en) 1998-09-17 2005-03-01 Focal, Inc. Self-cleaning fluid delivery device for medical applications
ES2243122A1 (es) * 2003-12-01 2005-11-16 Manuel Agullo Carbonell (Titular Al 50%) Pistola de pintar.
US7217254B2 (en) 2002-09-20 2007-05-15 Genzyme Corporation Multi-pressure biocompatible agent delivery device and method
WO2010151666A1 (fr) * 2009-06-25 2010-12-29 E. I. Du Pont De Nemours And Company Dispositif de pulvérisation et utilisation correspondante
WO2010151762A1 (fr) * 2009-06-25 2010-12-29 E. I. Du Pont De Nemours And Company Procede de pulverisation et son utilisation
WO2016140683A1 (fr) * 2015-03-05 2016-09-09 Axalta Coating Systems Ip Co., Llc Pistolet de pulvérisation à aiguille creuse pour assurer une alimentation par gravité et son procédé d'utilisation
CN108031579A (zh) * 2018-01-22 2018-05-15 中国科学技术大学 喷枪及其枪头、空气喷涂装置
CN112264211A (zh) * 2020-10-16 2021-01-26 易忠萍 一种干雾抑尘用云台喷雾装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536007A1 (de) * 1974-09-10 1976-03-25 Sig Schweiz Industrieges Leimspruehduese
GB2063713A (en) * 1979-11-15 1981-06-10 Devilbiss Europa Gmbh Spray guns

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536007A1 (de) * 1974-09-10 1976-03-25 Sig Schweiz Industrieges Leimspruehduese
GB2063713A (en) * 1979-11-15 1981-06-10 Devilbiss Europa Gmbh Spray guns

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0192390A3 (fr) * 1985-02-19 1987-05-06 Junkosha Co. Ltd. Procédé et appareil pour le traitement des surfaces
EP0192390A2 (fr) * 1985-02-19 1986-08-27 Junkosha Co. Ltd. Procédé et appareil pour le traitement des surfaces
DE3824887A1 (de) * 1988-07-22 1990-01-25 Castolin Gmbh Duese fuer flammspritzbrenner
GB2227433A (en) * 1988-11-02 1990-08-01 United Technologies Corp Gas assisted liquid atomizer
US5090619A (en) * 1990-08-29 1992-02-25 Pinnacle Innovations Snow gun having optimized mixing of compressed air and water flows
WO1992004585A1 (fr) * 1990-08-29 1992-03-19 Pinnacle Innovations Canon a neige a melange optimise d'air comprime et d'eau
US5665067A (en) * 1994-02-28 1997-09-09 Immuno Aktiengesellschaft Apparatus for applying a multiple-component tissue adhesive
EP0669100A1 (fr) * 1994-02-28 1995-08-30 IMMUNO Aktiengesellschaft Dispositif pour appliquer une colle de tissu à plusieurs composant
EP0682986A2 (fr) * 1994-05-11 1995-11-22 F.LLI TALAMONTI MACCHINE S.n.c. Pistolet de pulvérisation pour l'application de colle
EP0682986A3 (fr) * 1994-05-11 1997-12-17 F.LLI TALAMONTI MACCHINE S.n.c. Pistolet de pulvérisation pour l'application de colle
US5873524A (en) * 1995-07-28 1999-02-23 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and device for spraying a liquid product
FR2737138A1 (fr) * 1995-07-28 1997-01-31 Air Liquide Procede et dispositif de pulverisation d'un produit liquide
EP0755720A1 (fr) * 1995-07-28 1997-01-29 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Procédé et dipositif de pulvérisation d'un produit liquide
AU702850B2 (en) * 1995-07-28 1999-03-04 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and device for spraying a liquid product
FR2779805A1 (fr) 1998-06-15 1999-12-17 Air Liquide Injecteur de combustible sous forme de brouillard pour bruleur a fioul et bruleur muni d'un tel injecteur
US6860870B2 (en) 1998-09-17 2005-03-01 Focal, Inc. Self-cleaning fluid delivery device for medical applications
US7217254B2 (en) 2002-09-20 2007-05-15 Genzyme Corporation Multi-pressure biocompatible agent delivery device and method
ES2243122A1 (es) * 2003-12-01 2005-11-16 Manuel Agullo Carbonell (Titular Al 50%) Pistola de pintar.
WO2010151762A1 (fr) * 2009-06-25 2010-12-29 E. I. Du Pont De Nemours And Company Procede de pulverisation et son utilisation
WO2010151666A1 (fr) * 2009-06-25 2010-12-29 E. I. Du Pont De Nemours And Company Dispositif de pulvérisation et utilisation correspondante
CN102458676A (zh) * 2009-06-25 2012-05-16 纳幕尔杜邦公司 喷涂装置及其用途
CN102458671A (zh) * 2009-06-25 2012-05-16 纳幕尔杜邦公司 喷涂方法及其用途
US9233484B2 (en) 2009-06-25 2016-01-12 Axalta Coating Systems Ip Co., Llc Spray device and use thereof
WO2016140683A1 (fr) * 2015-03-05 2016-09-09 Axalta Coating Systems Ip Co., Llc Pistolet de pulvérisation à aiguille creuse pour assurer une alimentation par gravité et son procédé d'utilisation
CN108031579A (zh) * 2018-01-22 2018-05-15 中国科学技术大学 喷枪及其枪头、空气喷涂装置
CN112264211A (zh) * 2020-10-16 2021-01-26 易忠萍 一种干雾抑尘用云台喷雾装置
CN112264211B (zh) * 2020-10-16 2022-02-18 刘春平 一种干雾抑尘用云台喷雾装置

Also Published As

Publication number Publication date
EP0105493A3 (fr) 1985-08-21
DE8227445U1 (de) 1983-01-05

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