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WO2016070870A1 - Pistolet de pulvérisation destiné à pulvériser des liquides - Google Patents

Pistolet de pulvérisation destiné à pulvériser des liquides Download PDF

Info

Publication number
WO2016070870A1
WO2016070870A1 PCT/DE2015/100464 DE2015100464W WO2016070870A1 WO 2016070870 A1 WO2016070870 A1 WO 2016070870A1 DE 2015100464 W DE2015100464 W DE 2015100464W WO 2016070870 A1 WO2016070870 A1 WO 2016070870A1
Authority
WO
WIPO (PCT)
Prior art keywords
spray gun
air
compressor
air flow
nozzle
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.)
Ceased
Application number
PCT/DE2015/100464
Other languages
German (de)
English (en)
Inventor
Björn Buchholz
Michael Pfingstgraef
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.)
G-MATE AG
Original Assignee
G-MATE AG
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 G-MATE AG filed Critical G-MATE AG
Publication of WO2016070870A1 publication Critical patent/WO2016070870A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2416—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • 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
    • B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun

Definitions

  • the present invention relates to a spray gun for atomizing liquids, especially high-viscosity paints or varnishes, which is supplied by means of an air flow and adjustable through a trigger handle nozzle needle of a spray nozzle, wherein the air flow through a spray gun associated device for generating the air flow and whose electric drive can be generated and the atomizer nozzle can be supplied via an air channel within the spray gun.
  • electrically operated spray guns in the home improvement sector produce with a fan, an air flow of about 800 l / min at a nozzle internal pressure of about 0.15 bar.
  • a high volume of air is achieved with these blowers, the atomization of highly viscous liquids and the application of a finer color film are clearly limited due to the low nozzle internal pressure, in particular in terms of quality.
  • the present invention is based on the object of providing a spray gun of the type mentioned above, which eliminates the aforementioned disadvantages and which is suitable for significantly improving the atomization of highly viscous liquids in terms of quality. According to the preceding object is achieved according to the preamble of claim 1 protection in conjunction with the characterizing features. Advantageous embodiments and further developments of the spray gun according to the invention are specified in the dependent subclaims.
  • a spray gun of the type mentioned is characterized in that the means for generating the air flow comprises a centrifugal compressor with a compressor wheel, which is enclosed by a spiral compressor housing with a helical flow channel.
  • the air is advantageously sucked axially through an air filter on the rear wall of the housing of the spray gun and accelerated in the compressor wheel at preferably about 50,000 revolutions per minute.
  • the air leaves the compressor wheel in the radial direction, the air pressure being increased as a result of the deceleration of the air velocity within the helical flow channel and the continuous widening of the flow cross section up to the compressor outlet.
  • the compressed air then flows through the air duct as far as the atomizer nozzle where it generates an internal nozzle pressure of preferably 0.3-0.5 bar.
  • the air filter prevents the suction of dirt particles and other foreign bodies.
  • an electrical drive of the device preferably acts a 24 volt or 230/1 10 volt electric motor, which is mounted within the housing of the spray gun.
  • the power supply of the spray gun is advantageously wired or via at least one battery (preferably an accumulator).
  • FIG. 1 shows the spray gun according to the invention in a side view
  • FIG. 2 the spray gun in front view
  • FIG. 1 shows the spray gun according to the invention in a side view
  • FIG. 2 the spray gun in front view
  • the device for generating the air flow in plan view The device for generating the air flow in plan view.
  • the spray gun 1 comprises a nozzle needle which can be adjusted by means of a trigger bracket 3 inside the liquid container 4, by means of which liquid 2 is supplied to a spray nozzle 5.
  • the air stream 6 is generated by a device 7 associated with the spray gun 1 and its electric drive 8 and fed to the atomizer nozzle 5 via an air channel 9 within the spray gun 1.
  • the liquid is supplied to the atomizing nozzle 5 via a material supply device 10 provided on the spray gun 1, to which a liquid container 4 can be arranged reversibly.
  • a material supply device 10 provided on the spray gun 1, to which a liquid container 4 can be arranged reversibly.
  • the air 6a is advantageously sucked through an air filter 12 on the rear wall of the housing 1 1 by means of the compressor wheel 13 (see Figure 3) axially into the device 7 and accelerated with the compressor wheel 13.
  • the air 6a flows through the air channel 9 in the direction of the atomizer nozzle 5, wherein the outflowing air 6a generates a negative pressure at the nozzle outlet, which sucks the liquid 2 from the liquid container 4, atomizes and finally feeds the workpiece.
  • the device 7 is the lower (more pronounced) part of the inner housing of the spray gun 1 in its diameter substantially adapted and integrated as possible to save space in the housing 1 1.
  • the compressor outlet 14a on the compressor housing 14 preferably points upward in the direction of the air channel 6.
  • the electric drive 8 is advantageously mounted on the front side in the housing 1 1 in order to ensure the most balanced possible weight balance of the spray gun 1.
  • the advantages of the device 7 according to the invention on the spray gun 1 are in particular that it is built very small, lightweight and compact despite the nozzle internal pressure generated, the compressor housing 14 is particularly preferably made of a plastic by injection molding inexpensively.
  • the device 7 is therefore particularly suitable for electric, hand-held spray guns 1 of the type mentioned.
  • the spray gun according to the invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a variety of design variations are possible, which make use of the solution shown even with fundamentally different type of execution. List of reference numbers

Landscapes

  • Nozzles (AREA)

Abstract

L'invention concerne un pistolet de pulvérisation (1) destiné à pulvériser des liquides (2), lesquels sont amenés à une buse de pulvérisation (5) au moyen d'un courant d'air (6) et d'un pointeau de buse réglable par l'intermédiaire d'une gâchette (3), à l'intérieur d'un réservoir de liquide (4), le courant d'air (6) pouvant être produit par l'intermédiaire d'un dispositif (7) destiné à produire le courant d'air (6), lequel est associé au pistolet de pulvérisation (1), et de son organe d'entraînement électrique (8) et ledit courant pouvant être amené à la buse de pulvérisation (5) via un canal d'air (9) à l'intérieur du pistolet de pulvérisation (1). L'invention est caractérisée en ce que le dispositif (7) destiné à produire le courant d'air (6) comporte un compresseur radial muni d'une roue de compresseur (13) qui est entourée d'un carter de compresseur (14) en forme de spirale, pourvu d'un canal d'écoulement hélicoïdal.
PCT/DE2015/100464 2014-11-06 2015-11-03 Pistolet de pulvérisation destiné à pulvériser des liquides Ceased WO2016070870A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014116148.3A DE102014116148A1 (de) 2014-11-06 2014-11-06 Spritzpistole zum Zerstäuben von Flüssigkeiten
DE102014116148.3 2014-11-06

Publications (1)

Publication Number Publication Date
WO2016070870A1 true WO2016070870A1 (fr) 2016-05-12

Family

ID=55272194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2015/100464 Ceased WO2016070870A1 (fr) 2014-11-06 2015-11-03 Pistolet de pulvérisation destiné à pulvériser des liquides

Country Status (2)

Country Link
DE (1) DE102014116148A1 (fr)
WO (1) WO2016070870A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023006861A1 (fr) * 2021-07-30 2023-02-02 J. Wagner Gmbh Pistolet à peinture manuel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998047627A1 (fr) * 1997-04-18 1998-10-29 Ryobi North America, Inc. Souffleur portatif
WO2003004172A1 (fr) * 2001-07-03 2003-01-16 Hermann Rugen Pistolet a peinture a generateur d'air comprime
EP1602411A2 (fr) * 2004-06-04 2005-12-07 J. Wagner GmbH Pistolet de pulvérisation
WO2013072500A1 (fr) * 2011-11-18 2013-05-23 G-Mate Ag Passage pour cartouche de peinture remplaçable
EP2664387A1 (fr) * 2011-01-12 2013-11-20 Fenghua Weilder Electric Appliance Co., Ltd Pistolet de pulvérisation électrique portable

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896834A (en) * 1984-08-30 1990-01-30 The Devilbiss Company Rotary atomizer apparatus
US5452855A (en) * 1989-11-06 1995-09-26 Hughes Aircraft Company High volume/low pressure spray gun
US5550336A (en) * 1994-11-09 1996-08-27 Wagner Spray Tech Corporation Turbine sound reducer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998047627A1 (fr) * 1997-04-18 1998-10-29 Ryobi North America, Inc. Souffleur portatif
WO2003004172A1 (fr) * 2001-07-03 2003-01-16 Hermann Rugen Pistolet a peinture a generateur d'air comprime
EP1602411A2 (fr) * 2004-06-04 2005-12-07 J. Wagner GmbH Pistolet de pulvérisation
EP2664387A1 (fr) * 2011-01-12 2013-11-20 Fenghua Weilder Electric Appliance Co., Ltd Pistolet de pulvérisation électrique portable
WO2013072500A1 (fr) * 2011-11-18 2013-05-23 G-Mate Ag Passage pour cartouche de peinture remplaçable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023006861A1 (fr) * 2021-07-30 2023-02-02 J. Wagner Gmbh Pistolet à peinture manuel

Also Published As

Publication number Publication date
DE102014116148A1 (de) 2016-05-12

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