EP0192854A1 - Pistolet de pulvérisation pour matériaux de revêtement - Google Patents

Pistolet de pulvérisation pour matériaux de revêtement Download PDF

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Publication number
EP0192854A1
EP0192854A1 EP85116536A EP85116536A EP0192854A1 EP 0192854 A1 EP0192854 A1 EP 0192854A1 EP 85116536 A EP85116536 A EP 85116536A EP 85116536 A EP85116536 A EP 85116536A EP 0192854 A1 EP0192854 A1 EP 0192854A1
Authority
EP
European Patent Office
Prior art keywords
coating material
nozzle attachment
spray gun
nozzle
kit
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Withdrawn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
EP85116536A
Other languages
German (de)
English (en)
Inventor
Anton Rath
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 EP0192854A1 publication Critical patent/EP0192854A1/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Withdrawn legal-status Critical Current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
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B05B7/0838—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter comprising a single means controlling simultaneously the flow rates of shaping and spraying gas jets
    • 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
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent

Definitions

  • the invention relates to a spray gun for coating material, with a housing in which there are at least one channel for coating material and at least one channel for gas, which lead to a connection end of the housing, to which a nozzle attachment kit can be fastened, through which the coating material is sprayed.
  • the invention particularly relates to spray guns for liquid coating material such as e.g. Paint.
  • the invention also includes the spraying of powdered coating materials.
  • the object of the invention is to reduce the cost of materials and the costs required for them, which are required for spray guns, if coating material is to be sprayed using various atomization processes.
  • the spray gun forms a kit with several different nozzle attachment kits, in which one of the different nozzle attachment kits can be detachably attached to the connection end of the spray gun housing, and each nozzle attachment kit together with the spray gun uses a different atomization method working atomizer, especially for liquid coating materials
  • a coating material channel 8 leads from an inlet 6 to the downstream connection end 2.
  • an inlet channel 10 leads through a pistol grip 9, which via two gas channels 12 and 14 of the housing 4 is also in each case connected to the downstream connection end 2.
  • a lever 16 actuates a valve 18 in the inlet duct 10 and an actuating member 20 for a further valve of a nozzle attachment kit, which can be connected to the connection end 2.
  • the latter further valve blocks or opens the flow path of the coating material from the coating material channel 8 through the relevant nozzle attachment kit.
  • the gas channel 14 there is an adjustable and also lockable flow restrictor 22.
  • the connection end 2 is designed so that the nozzle attachment kits which are adapted to it consist of only a few components, although together with the spray gun they are each ver form different atomization processes working atomizers.
  • valve body 32 which can be screwed onto the actuating member 20 in the form of a valve needle
  • nozzle body 36 which can be screwed coaxially to it into an internal thread 34 of the connection end 2 and an inner valve seat 38 for the valve body 32
  • one of the two parts 32 and 36 overlapping atomizer air cap 40 which can be screwed coaxially to them with an internal thread 42 onto an external thread 44 of the connection end 2.
  • nozzle attachment kit 30 If the nozzle attachment kit 30 is screwed onto the connection end 2, coating material can flow out of the channel 8 via the valve 32, 38 through the nozzle body 36 when the lever 16 is actuated, and atomizing air can flow from the gas channel 12 via bores 46 and 48 of the nozzle body 36 and of the atomizer air cap 40, and additional air can also escape from the gas channel 14 via channels 50 in horns 52 of the atomizer air cap 40.
  • the nozzle attachment kit 30, together with the spray gun enables the coating material to be sprayed using the air atomization method. Electrodes 53 on the cap 40 electrostatically charge the coating material.
  • the nozzle attachment kit 30 of FIG. 2 can be exchanged for a nozzle attachment kit 60 of FIG. 3.
  • valve body 62 which can be screwed onto the actuating member 20 and has a valve ball, a valve seat 64 which can be screwed into the internal thread 34 of the connection end 2 for this valve body, and a nozzle cap 66 with an internal thread 42 for screwing onto the external thread 44 of the connection end 2.
  • nozzle attachment kit is on Connection end 2 1
  • coating material can escape from the channel 8 via the valve 62, 64 through an atomizing nozzle 68 which is screwed axially into the nozzle cap 66 and, because of the special but known shape of its nozzle mouth 70, atomization when the lever 16 of FIG. 1 is actuated of the coating material after the airless atomization process.
  • additional air can escape from the gas channel 14 via channels 72 of the atomizing nozzle 68 into the nozzle mouth 70, which supports the atomization of the coating material.
  • the nozzle attachment kits 30 and 60 can be exchanged for a nozzle attachment kit 80 from FIG. 4. This is almost identical to the nozzle attachment kit 60 from FIG. 2, which is why structurally corresponding parts are provided with the same reference numbers and have the same function. The only difference is that instead of the atomizer nozzle 68, an atomizer nozzle 82 is inserted into the nozzle cap 66. The atomizing nozzle 82 has no gas channels. No air is connected to the spray gun, channel 10. Flow restrictor 22 can be closed. The coating material is atomized using the airless atomization process without additional air.
  • the spray gun of FIGS. 5 and 6 is used to spray powder coating material onto objects. It is tubular and contains a base body 102, an interchangeably plugged-on intermediate piece 104 and, according to FIG. 5, a nozzle attachment kit 106 which can be plugged onto the latter and which bears against one 6 is interchangeable.
  • a coating material channel 110 leads axially through the base body 102 and the intermediate piece 104 and opens into the nozzle attachment kit 106 or 108. 5 atomizes the powdery coating material in that the material flow creates a negative pressure after the Coanda effect with a nozzle orifice wall 112, by means of which the material flow is torn apart radially.
  • the atomization is supported by atomizing air, which is supplied from an external compressed air source 114 via a shut-off valve 116 to a gas channel 118 of the spray gun and flows through an outlet 120 into a nozzle mouth 121.
  • the atomization takes place according to the known baffle plate-free atomization process.
  • Electrical lines 122 are connected to electrodes 124, which are arranged in the material channel 110 and electrostatically charge the coating material.
  • Another gas source 126 provides a Ans p errventil 128 compressed air to a further gas passage 130 from which it exits through an annular die 132 and forms an enveloping the atomized coating material gas jacket.
  • the gas channels 118 and 130 are closed and the atomization of the coating material is effected by an impact body 134 which is arranged in the flow path of the coating material downstream of a nozzle wall 136.
  • the compressed air sources 114 and 126 are not required when using the nozzle attachment kit 108 from FIG. 6 and can be switched off.
  • the powdery coating material is atomized by its deflection on Impact body 134 according to the known baffle plate atomization process.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Nozzles (AREA)
EP85116536A 1985-02-01 1985-12-23 Pistolet de pulvérisation pour matériaux de revêtement Withdrawn EP0192854A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3503384 1985-02-01
DE3503384A DE3503384C1 (de) 1985-02-01 1985-02-01 Spritzpistole für Beschichtungsmaterial

Publications (1)

Publication Number Publication Date
EP0192854A1 true EP0192854A1 (fr) 1986-09-03

Family

ID=6261383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116536A Withdrawn EP0192854A1 (fr) 1985-02-01 1985-12-23 Pistolet de pulvérisation pour matériaux de revêtement

Country Status (5)

Country Link
US (1) US4702420A (fr)
EP (1) EP0192854A1 (fr)
JP (1) JPS61178054A (fr)
DE (1) DE3503384C1 (fr)
ES (1) ES292061Y (fr)

Families Citing this family (40)

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Publication number Priority date Publication date Assignee Title
DE3835446A1 (de) * 1988-10-18 1990-04-19 Lechler Gmbh & Co Kg Duese zum zerstaeuben fluessiger medien, insbesondere flachstrahlduese
US5183322A (en) * 1991-04-19 1993-02-02 Spraying Systems Co. Spray gun with selective hydraulic and air assisted operating modes
DE19509223C1 (de) * 1995-03-17 1996-11-07 Holger Schrader Mehrstoff-Zerstäuberdüse
DE19514147A1 (de) * 1995-04-15 1996-10-17 Gema Volstatic Ag Pulver-Sprühpistole für Beschichtungspulver
DE19522754A1 (de) * 1995-06-26 1997-01-02 Kurt Sebald Informationsstrukturschlüssel für Ausbringpistolen
US6227846B1 (en) 1996-11-08 2001-05-08 Shrinkfast Corporation Heat gun with high performance jet pump and quick change attachments
EP0841518B1 (fr) * 1996-11-08 2003-02-05 Shrinkfast Corporation Pistolet à air chaud avec une pompe à jet de haute performance et des parts à changement rapide
US6629708B2 (en) 1997-04-15 2003-10-07 Swagelok Company Ferrule with relief to reduce galling
TW473600B (en) * 1997-04-15 2002-01-21 Swagelok Co Tube fitting, rear ferrule for a two ferrule tube fitting and ferrule for a tube fitting and a non-flared tube fitting
US5882050A (en) * 1997-04-15 1999-03-16 Williams; Peter C. Ferrule with relief to reduce galling
US5850976A (en) * 1997-10-23 1998-12-22 The Eastwood Company Powder coating application gun and method for using the same
US6085996A (en) * 1998-03-05 2000-07-11 Coating Atomization Technologies, Llc Two-piece spray nozzle
US6460787B1 (en) * 1998-10-22 2002-10-08 Nordson Corporation Modular fluid spray gun
AU1117900A (en) * 1998-10-22 2000-05-08 Nordson Corporation Modular fluid spray gun
US6098902A (en) * 1999-05-14 2000-08-08 Coating Atomization Technologies, Llc Spray gun for atomizing and applying liquid coatings having interchangeable nozzle assemblies
US20030205631A1 (en) * 2000-05-25 2003-11-06 The Procter & Gamble Company Spraying of liquids
US6863060B2 (en) * 2002-11-06 2005-03-08 Robert Martinez Paintball gun with Coanda effect
WO2005018825A1 (fr) * 2003-08-18 2005-03-03 Nordson Corporation Interface operateur hertzienne pour systeme d'application de matiere
US7296760B2 (en) 2004-11-17 2007-11-20 Illinois Tool Works Inc. Indexing valve
US7296759B2 (en) * 2004-11-19 2007-11-20 Illinois Tool Works Inc. Ratcheting retaining ring
US7757973B2 (en) * 2005-04-04 2010-07-20 Illinois Tool Works Inc. Hand-held coating dispensing device
US7460924B2 (en) * 2005-06-16 2008-12-02 Illinois Tool Works Inc. In-gun power supply control
US7364098B2 (en) * 2005-10-12 2008-04-29 Illinois Tool Works Inc. Material dispensing apparatus
US7455249B2 (en) 2006-03-28 2008-11-25 Illinois Tool Works Inc. Combined direct and indirect charging system for electrostatically-aided coating system
ES2326608B1 (es) * 2007-01-19 2010-07-08 Bulma Tecnologia, S.L. Procedimiento de proteccion frente a la oxidacion de productos de pizarra y piedra natural en la construccion.
USD608858S1 (en) 2008-03-10 2010-01-26 Illinois Tool Works Inc. Coating material dispensing device
US8016213B2 (en) 2008-03-10 2011-09-13 Illinois Tool Works Inc. Controlling temperature in air-powered electrostatically aided coating material atomizer
US7988075B2 (en) 2008-03-10 2011-08-02 Illinois Tool Works Inc. Circuit board configuration for air-powered electrostatically aided coating material atomizer
US7926748B2 (en) 2008-03-10 2011-04-19 Illinois Tool Works Inc. Generator for air-powered electrostatically aided coating dispensing device
US8590817B2 (en) 2008-03-10 2013-11-26 Illinois Tool Works Inc. Sealed electrical source for air-powered electrostatic atomizing and dispensing device
US8770496B2 (en) 2008-03-10 2014-07-08 Finishing Brands Holdings Inc. Circuit for displaying the relative voltage at the output electrode of an electrostatically aided coating material atomizer
US8496194B2 (en) 2008-03-10 2013-07-30 Finishing Brands Holdings Inc. Method and apparatus for retaining highly torqued fittings in molded resin or polymer housing
US7918409B2 (en) 2008-04-09 2011-04-05 Illinois Tool Works Inc. Multiple charging electrode
US8225968B2 (en) 2009-05-12 2012-07-24 Illinois Tool Works Inc. Seal system for gear pumps
GB201414281D0 (en) 2014-08-12 2014-09-24 Jim Lindsay Ltd Spray gun apparatus
US10166557B2 (en) 2015-03-03 2019-01-01 Carlisle Fluid Technologies, Inc. Electrostatic spray tool system
DK3313582T3 (en) 2015-06-26 2019-04-29 Jim Lindsay Ltd SPRAY GUN
US11819870B2 (en) * 2019-03-01 2023-11-21 William Harrison System and method for efficient and ergonomic waterproofing of joints and fasteners
MX2021008489A (es) 2020-07-14 2022-01-17 Techtronic Cordless Gp Pulverizador motorizado.
CN115301431B (zh) * 2022-09-14 2023-08-15 华能国际电力股份有限公司 火电机组锅炉管内壁用高粘度浆料雾化喷头

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1273722A (fr) * 1960-11-16 1961-10-13 Thomson Houston Comp Francaise Perfectionnements aux transformateurs
US3208673A (en) * 1962-12-31 1965-09-28 Aro Corp Air atomizer for airless spray gun
US4005824A (en) * 1975-08-21 1977-02-01 Grover Smith Mfg. Co. Spray gun quickly convertible between air and airless operating modes
EP0037910A1 (fr) * 1980-04-12 1981-10-21 Ransburg-Gema AG Procédé et dispositif de pulvérisation de poudre
CH634490A5 (en) * 1978-11-03 1983-02-15 Hofmann Walter Maschf Paint spray gun

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2746863A1 (de) * 1977-10-19 1979-04-26 Hofmann Walter Maschf Farbspritzpistole
US4433812A (en) * 1980-11-12 1984-02-28 Champion Spark Plug Company Paint spray attachment
JPS5837470U (ja) * 1981-09-07 1983-03-11 株式会社東芝 冷蔵庫
JPS5920365U (ja) * 1983-06-09 1984-02-07 富士通株式会社 自動取引装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1273722A (fr) * 1960-11-16 1961-10-13 Thomson Houston Comp Francaise Perfectionnements aux transformateurs
US3208673A (en) * 1962-12-31 1965-09-28 Aro Corp Air atomizer for airless spray gun
US4005824A (en) * 1975-08-21 1977-02-01 Grover Smith Mfg. Co. Spray gun quickly convertible between air and airless operating modes
CH634490A5 (en) * 1978-11-03 1983-02-15 Hofmann Walter Maschf Paint spray gun
EP0037910A1 (fr) * 1980-04-12 1981-10-21 Ransburg-Gema AG Procédé et dispositif de pulvérisation de poudre

Also Published As

Publication number Publication date
DE3503384C1 (de) 1986-04-17
US4702420A (en) 1987-10-27
JPS61178054A (ja) 1986-08-09
ES292061U (es) 1986-05-16
ES292061Y (es) 1987-02-01

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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18D Application deemed to be withdrawn

Effective date: 19900703

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Inventor name: RATH, ANTON