EP0561196A1 - Dispositif de pulvérisation pour l'application d'un produit liquide comme de la peinture - Google Patents

Dispositif de pulvérisation pour l'application d'un produit liquide comme de la peinture Download PDF

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Publication number
EP0561196A1
EP0561196A1 EP93103164A EP93103164A EP0561196A1 EP 0561196 A1 EP0561196 A1 EP 0561196A1 EP 93103164 A EP93103164 A EP 93103164A EP 93103164 A EP93103164 A EP 93103164A EP 0561196 A1 EP0561196 A1 EP 0561196A1
Authority
EP
European Patent Office
Prior art keywords
medium
air
compressed air
pressure
jet
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
EP93103164A
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German (de)
English (en)
Other versions
EP0561196B1 (fr
Inventor
Klaus Kleinmichel
Hartmut Böhle
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.)
Klaus Kleinmichel GmbH
Original Assignee
Klaus Kleinmichel GmbH
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Filing date
Publication date
Application filed by Klaus Kleinmichel GmbH filed Critical Klaus Kleinmichel GmbH
Publication of EP0561196A1 publication Critical patent/EP0561196A1/fr
Application granted granted Critical
Publication of EP0561196B1 publication Critical patent/EP0561196B1/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
    • B05B7/24—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
    • B05B7/2489—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 an atomising fluid, e.g. a gas, being supplied to the discharge device
    • 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
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material

Definitions

  • the invention relates to a spray device for applying a liquid medium such as paint, with a spray gun which is connected to a medium source and which has an outlet nozzle for the medium under pressure.
  • Spraying devices of this type which operate in the low pressure process at approx. 0.1 to 6 bar.
  • the medium exits through a round nozzle of the spray gun with a constant cross-section and is atomized by compressed air which is emitted at the same time.
  • the compressed air can encircle the emerging medium jet and distribute it atomizing over a larger diameter, whereby horn air striking this medium jet can compress the jet with further atomization.
  • EP-0 408 786 A1 discloses a spray gun that is always operated with compressed air in order to atomize paint.
  • a comparable spraying device is known from DE 38 22 835 A1, here too the paint emerging from the spray gun is always atomized by compressed air, the size of the air pressure and the amount of paint supplied being able to vary in order to be independent of the type of paint or of the paint, from the feed geometry of the spray gun or the workpiece and its geometry to consistently constant painting results without the formation of drops or blobs.
  • the present invention is based on the object of specifying a spraying device which can be used both for large-area paint application and for paint application along a very narrow strip.
  • the spraying device according to the invention can optionally work in the medium high pressure range without compressed air or in the medium medium pressure range or low pressure range with compressed air.
  • the spray device for applying a medium, such as paint, etc. can thus be used universally on surfaces of different sizes and widths and enables a considerably faster and more cost-effective application process than the spray devices known hitherto.
  • the medium outlet nozzle of the spraying device has a cross-sectionally conical outlet opening, and that an annular nozzle surrounding the medium outlet nozzle and / or a plurality of opposing nozzles directed obliquely inwards towards the emerging medium jet are also arranged, which are connected to the compressed air source, it being preferred that both the ring nozzle and the so-called horn air nozzles surround the medium outlet nozzle.
  • a control device for the medium pressure is arranged.
  • the spraying device can work both with compressed air and without compressed air, a volume metering device supplying the medium preferably being able to work in a pressure range of approximately 10 to 300 bar.
  • the medium pressure is preferably 70 to 300 bar, while the medium pressure in the medium-pressure process is preferably approximately 10 to 80 bar.
  • the liquid medium is atomized and distributed according to the nozzle geometry without compressed air escaping from the air nozzles.
  • the application jet is to be constricted in order to reduce the jet width, for example because the intended application area has only a reduced width or because e.g. if a paint application of greater concentration is to take place
  • the control device for the medium reduces its pressure from high pressure to medium pressure. If compressed air is now emitted from the ring nozzle and / or the horn air nozzles arranged at an angle to the jet axis, this can change the medium jet geometry as a function of the pressure of the ring air and / or the horn air, so that the jet constricts to a desired width can be.
  • an ON / OFF air control valve can be closed between the compressed air source and the spray gun, and the volume dispenser feeds the medium at a pressure of approx. 70 to 300 bar, at which - as mentioned - the medium alone atomized due to the material pressure and a large-area application jet is created. If, on the other hand, the application jet is to be restricted in order to apply the paint to a small area, the ON / OFF air control valve is opened, the pressure of the medium is reduced to approx. 10 to 70 bar and the compressed air supply to the ring nozzle and the horn air nozzles is adjusted in such a way that that the medium jet is constricted to the desired extent.
  • the emerging medium jet can be compressed quite flatly, so that paint can be applied along a very narrow strip, if this is desired.
  • high-pressure operation - without constriction due to ring air and horn air - a very wide, large-area medium jet can be emitted, which is suitable for large-area application.
  • the spray device according to the invention is therefore ideally suited for the application of a medium such as paint to surfaces of different widths and thereby replaces the two spray guns previously required, which were each operated at different pressures. In this way, such an application process is considerably quicker and cheaper.
  • a volume meter is preferably used as the control device for the medium to be applied, which adjusts the volume of the emerging medium and its pressure to the desired level.
  • a control device for the air pressure is provided according to the invention, which should also offer the option of optionally allowing the air outlet from the ring nozzle and / or the horn air nozzles in order to influence or change the medium jet geometry in the desired manner.
  • the pressure of the exiting air is adjustable, and any air outlet can also be switched off, which is provided in particular in high-pressure operation.
  • the medium outlet nozzle can have a slot-shaped opening which opens conically in a cross section, or else a circular, conically widening outlet opening.
  • valves be arranged in the lines connecting the compressed air source to the spray gun, namely an air control valve which switches the air supply ON or OFF, an air control valve for the horn air nozzles, which are located opposite one another on both sides of the medium outlet nozzle are arranged and are directed at an acute angle to the emerging medium jet or its central axis, and an air control valve for the ring nozzle surrounding the medium outlet nozzle.
  • control unit for the volume metering device and the air valves is arranged, with the control keyboard of which the parameters of the spray gun or spraying device can be set.
  • the control unit advantageously has a monitor which displays the set / actual parameters.
  • the horn air compressing the medium jet more or less flat can emerge from one or more opposing pairs of horn air nozzles, and it is within the scope of the invention to arrange two or more concentric ring nozzles instead of an annular nozzle, which can optionally deliver compressed air.
  • the spray device contains a spray gun 1, which is connected via lines 2 to 4 to a compressed air source 5.
  • An ON / OFF air valve 6, an air control valve 7, which adjusts the compressed air supply to the horn air nozzles, not shown, and an air control valve 8, which is provided for the compressed air supply to the ring nozzle, also not shown, are arranged in lines 2 to 4.
  • the spray gun 1 is also connected via a line 9 to a hydraulic volume metering device 10, the oil inlet of which is designated 11 and the material inlet 12.
  • a control unit 13 for the volume metering device 10 and the air valves 6 to 8 contains a monitor which displays the set / actual parameters, and an operating keyboard 15 with which the parameters of the medium and compressed air delivery can be set or changed.
  • the hydraulic volume metering device 10 guides the medium at high pressure, i.e. with about 70 to 300 bar, and the air control valve 6 switches to OFF and thus interrupts the compressed air supply to the spray gun 1. If, on the other hand, the medium jet is to be narrowed, the volume metering device 10 reduces the pressure of the medium to approximately 10 to 70 bar, which Air control valve 6 is switched ON and the air control valves 7 and 8 adjust the compressed air supply to the ring air nozzle and the horn air nozzles according to the parameters entered in the control unit 13, whereby the desired medium jet geometry is generated.

Landscapes

  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP93103164A 1992-03-17 1993-02-27 Dispositif de pulvérisation pour l'application d'un produit liquide comme de la peinture Expired - Lifetime EP0561196B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4208500 1992-03-17
DE4208500A DE4208500C2 (de) 1992-03-17 1992-03-17 Spritzvorrichtung zum Aufbringen eines flüssigen Mediums wie Farbe

Publications (2)

Publication Number Publication Date
EP0561196A1 true EP0561196A1 (fr) 1993-09-22
EP0561196B1 EP0561196B1 (fr) 1997-04-23

Family

ID=6454268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103164A Expired - Lifetime EP0561196B1 (fr) 1992-03-17 1993-02-27 Dispositif de pulvérisation pour l'application d'un produit liquide comme de la peinture

Country Status (3)

Country Link
EP (1) EP0561196B1 (fr)
AT (1) ATE152009T1 (fr)
DE (2) DE4208500C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627353C1 (de) * 1996-06-27 1997-10-23 Feuerschutz G Knopf Gmbh Verfahren zur dynamischen Löschmittelanwendung und Vorrichtung zur Durchführung des Verfahrens

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335827C2 (de) * 1993-10-20 2001-06-07 Siemens Ag Verfahren und Löschanlage zum Löschen eines Brandes
DE19610589A1 (de) * 1996-03-18 1997-09-25 Duerr Gmbh & Co Verfahren und System zur Farbversorgung einer Beschichtungsanlage
DE19611533B4 (de) * 1996-03-23 2005-11-03 Itw Gema Ag Vorrichtung zur Pulverbeschichtung
DE19615379C2 (de) * 1996-04-18 2002-10-10 Fraunhofer Ges Forschung Pneumatische Handspritzpistole mit automatischer Spritzstrahlverstellung
DE20017630U1 (de) * 1999-12-20 2001-03-22 Tevkür, Talip, 13585 Berlin Farbspritzpistole
DE102006017323B4 (de) * 2005-04-12 2011-01-27 B + M Surface Systems Gmbh Sprühbeschichtungseinrichtung
US11826771B2 (en) 2018-08-01 2023-11-28 Sata Gmbh & Co. Kg Set of nozzles for a spray gun, spray gun system, method for embodying a nozzle module, method for selecting a nozzle module from a set of nozzles for a paint job, selection system and computer program product
DE102018118737A1 (de) 2018-08-01 2020-02-06 Sata Gmbh & Co. Kg Düse für eine Spritzpistole, Düsensatz für eine Spritzpistole, Spritzpistolen und Verfahren zur Herstellung einer Düse für eine Spritzpistole
DE102018118738A1 (de) 2018-08-01 2020-02-06 Sata Gmbh & Co. Kg Grundkörper für eine Spritzpistole, Spritzpistolen, Spritzpistolen-Set, Verfahren zur Herstellung eines Grundkörpers für eine Spritzpistole und Verfahren zum Umrüsten einer Spritzpistole
DE102018122004A1 (de) 2018-09-10 2020-03-12 Sata Gmbh & Co. Kg Lackierpistole, Materialauftragssystem und Verfahren zu dessen Betrieb
DE102020106171A1 (de) * 2020-03-06 2021-09-09 Sata Gmbh & Co. Kg Spritzpistole, insbesondere Farbspritzpistole
DE102020106172A1 (de) 2020-03-06 2021-09-09 Sata Gmbh & Co. Kg Spritzpistole, insbesondere druckluftzerstäubende Farbspritzpistole, insbesondere handgeführte druckluftzerstäubende Farbspritzpistole
DE102020123769A1 (de) 2020-09-11 2022-03-17 Sata Gmbh & Co. Kg Dichtelement zum Abdichten eines Übergangs zwischen einem Grundkörper einer Spritzpistole und einem Anbauteil einer Spritzpistole, Anbauteil, insbesondere Farbdüsenanordnung, für eine Spritzpistole und Spritzpistole, insbesondere Farbspritzpistole

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542030A1 (de) * 1975-09-20 1977-03-24 Wilhelm Fleissner Pumpenaggregat
DE3409961A1 (de) * 1984-03-17 1985-09-19 Basf Farben + Fasern Ag, 2000 Hamburg Vorrichtung zum aufbringen von fluidproben, wie farben, lacke od. dgl.
GB2167320A (en) * 1984-09-19 1986-05-29 Bl Tech Ltd A spray control system
FR2623108A1 (fr) * 1987-11-12 1989-05-19 Tm Tiziana Mazza Dispositif d'application, au moyen d'un pistolet de pulverisation, de films d'adhesif

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507814A1 (de) * 1985-03-06 1985-11-21 Josef 7963 Eichstegen Nusser Dosiereinrichtung, insbesondere fuer mehrkomponentenspritzpistole
DE3720991A1 (de) * 1987-06-25 1989-03-30 Fere Dosier Und Klebsysteme Gm Spritzvorrichtung mit materialflusskontrolle
DE3822835A1 (de) * 1988-07-06 1990-03-08 Josef Schucker Verfahren und anordnung zum lackieren von werkstueckoberflaechen
ATE93417T1 (de) * 1989-07-19 1993-09-15 Sata Farbspritztechnik Duesenkopf.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2542030A1 (de) * 1975-09-20 1977-03-24 Wilhelm Fleissner Pumpenaggregat
DE3409961A1 (de) * 1984-03-17 1985-09-19 Basf Farben + Fasern Ag, 2000 Hamburg Vorrichtung zum aufbringen von fluidproben, wie farben, lacke od. dgl.
GB2167320A (en) * 1984-09-19 1986-05-29 Bl Tech Ltd A spray control system
FR2623108A1 (fr) * 1987-11-12 1989-05-19 Tm Tiziana Mazza Dispositif d'application, au moyen d'un pistolet de pulverisation, de films d'adhesif

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627353C1 (de) * 1996-06-27 1997-10-23 Feuerschutz G Knopf Gmbh Verfahren zur dynamischen Löschmittelanwendung und Vorrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
DE4208500A1 (de) 1993-09-23
DE59306227D1 (de) 1997-05-28
ATE152009T1 (de) 1997-05-15
DE4208500C2 (de) 1994-05-11
EP0561196B1 (fr) 1997-04-23

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