EP0108929B1 - Dispositif de distribution d'un fluide - Google Patents

Dispositif de distribution d'un fluide Download PDF

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Publication number
EP0108929B1
EP0108929B1 EP83110121A EP83110121A EP0108929B1 EP 0108929 B1 EP0108929 B1 EP 0108929B1 EP 83110121 A EP83110121 A EP 83110121A EP 83110121 A EP83110121 A EP 83110121A EP 0108929 B1 EP0108929 B1 EP 0108929B1
Authority
EP
European Patent Office
Prior art keywords
valve
needle
liquid
valve needle
bore
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.)
Expired
Application number
EP83110121A
Other languages
German (de)
English (en)
Other versions
EP0108929A2 (fr
EP0108929B2 (fr
EP0108929A3 (en
Inventor
Hans Behr
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.)
Hermann Behr and Sohn GmbH and Co
Original Assignee
Hermann Behr and Sohn GmbH and Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6745464&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0108929(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hermann Behr and Sohn GmbH and Co filed Critical Hermann Behr and Sohn GmbH and Co
Publication of EP0108929A2 publication Critical patent/EP0108929A2/fr
Publication of EP0108929A3 publication Critical patent/EP0108929A3/de
Application granted granted Critical
Publication of EP0108929B1 publication Critical patent/EP0108929B1/fr
Publication of EP0108929B2 publication Critical patent/EP0108929B2/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
    • 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
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • 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
    • B05B7/0408—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing two or more liquids

Definitions

  • the invention relates to a device for dispensing liquid, in particular by means of a nozzle, with a shut-off valve which has a valve seat which is internally optionally conical and an axial valve needle which is hollow for the radially inner liquid supply and whose end remote from the valve can be connected to a liquid source, optionally with a correspondingly conical one , Tip as valve body, which has at least one bore connected to the cavity of the valve needle with a radial component, which opens into an annular space on the valve seat radially between this and a single coaxial, for radially external fluid return, surrounding the valve needle surrounding liquid guide tube, the valve distal end can be connected to a liquid sink.
  • Tip of the valve needle can be any form of the needle end used as the valve body, since its diameter is in any case small compared to the length of the needle.
  • a plate valve could also be formed by means of a “tip” needle, which bluntly abuts a superficially flat valve seat.
  • valve needle In the case of a known coaxial arrangement of a radially inner valve needle, the conical tip of which forms the valve body of a seat valve of a paint spraying device, and at least one radially outer paint guide tube, the valve-distal end of which can be connected to a paint source or sink, the valve needle is solid and surrounded by an ink supply pipe.
  • the wall of which is provided with bores directed obliquely rearward with respect to the axis, which open into a coaxial return pipe which surrounds the paint supply pipe radially on the outside and can be connected to a paint sink.
  • the valve needle has a tube, at the axially front end of which an attachment piece forming the needle tip is attached, which is provided with the oblique bore and an axial blind bore, which on the one hand into the tube of the valve needle and on the other hand into the oblique hole opens.
  • oblique bores which are evenly distributed over the circumference of the needle tip and on the one hand offer a relatively low flow resistance when the valve is open and on the other hand cause a deflection of the possibly shared ink flow into the color return.
  • the valve needle can be in the proposed design relatively simple and cheap to manufacture.
  • valve needle contains a static mixer, which is expediently arranged in the tube of the valve needle and opens into the blind bore of the attachment piece (needle tip).
  • a paint nozzle 2 of an otherwise not shown paint spraying device is screwed with the interposition of an O-ring 4 in the axial, cylindrical extension 6 of a conical valve seat 8, which is fitted into the front end of a radially outer paint guide tube 10 serving the paint return.
  • the tube 10 encloses a coaxial, hollow valve needle 12, the conical tip 14 of which forms a valve body 8 which cooperates with the valve seat 8 and which is part of an attachment piece 16 which extends into the front end of a radially inner tube which mainly forms the valve needle 12 and serves for the ink supply 18 is glued, the cavity of which contains a static mixer 20 which, as indicated, works without moving parts by the fluids to be mixed, for. B.
  • the attachment piece 16 has an axial blind bore 22 which opens into the cavity of the tube 18 at the front end of the mixer 20 and from the inner end of which a plurality of oblique, forward-diverging bores 24 extend evenly distributed over the circumference of the needle tip 14, which Seen in the flow direction, open axially in front of the valve 8-14 in an annular space 26 between the valve needle 12 and the color return pipe 10.
  • a radially narrow, long collar 28 of the tube 10 this leads the extension 16 to form a small gap 30, which ensures that the flow resistance for the returned paint is greater than the flow resistance when the valve is open for the paint supplied to the paint spraying device.
  • This device can have a rotating atomizer bell or disc, on the surface of which the paint passes from the nozzle 2.

Claims (4)

1. Dispositif destiné à distribuer un liquide, en particulier au moyen d'une buse (2), comprenant une soupape d'arrêt (8, 14) qui possède un siège de soupape (8), éventuellement de forme intérieure conique, et une aiguille de soupape axiale creuse (12), destinée à l'amenée radialement intérieure du liquide, aiguille dont l'extrémité la plus éloignée de la soupape peut être raccordée à une source de liquide et qui est munie, en qualité d'élément obturateur de soupape, d'une pointe (14) qui est éventuellement d'une forme conique correspondante et qui possède au moins un perçage (24) à composante radiale raccordé à la cavité intérieure de l'aiguille de soupape (12) et débouchant dans un espace annulaire (26) adjacent au siège (8) de la soupape, à un endroit situé radialement entre ce siège et un unique tube coaxial (10) de passage du liquide, qui entoure l'aiguille de la soupape et est destiné à former un passage de retour du liquide radialement extérieur, l'extrémité de ce tube qui est la plus éloignée de la soupape pouvant être raccordée à un collecteur de liquide, caractérisé en ce que le percage (24) de la pointe (14) de l'aiguille est orientée obliquement, relativement à l'axe de l'aiguille, vers l'avant et vers le siège (8) de la soupape et en ce que le tube de passage de liquide (10) est muni d'un collet intérieur (28) qui guide l'extrémité avant (16) de l'aiguille (12) de la soupape, en délimitant une fente annulaire (30) qui fait suite à l'espace annulaire (26).
2. Dispositif selon la revendication 1, caractérisé en ce que l'aiguille (12) de la soupape présente un tube (18) à l'extrémité axialement avant duquel est fixée une pièce rapportée (16) qui forme la pointe (14) de l'aiguille et qui est munie du perçage oblique (24) et d'un perçage axial borgne (22) qui débouche, d'un côté, dans le tube (18) de l'aiguille (12) de la soupape et, de l'autre côté, dans le percage oblique (24).
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'aiguille (12) de la soupape renferme un mélangeur statique (20).
4. Dispositif selon les revendications 2 et 3, caractérisé en ce que le mélangeur (20) est disposé dans le tube (18) de l'aiguille (12) de la soupape et débouche dans le perçage borgne (22).
EP83110121A 1982-11-11 1983-10-11 Dispositif de distribution d'un fluide Expired - Lifetime EP0108929B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19828231663U DE8231663U1 (de) 1982-11-11 1982-11-11 Duese mit anschliessender koaxialanordnung fuer eine farbspritzeinrichtung
DE8231663U 1982-11-11

Publications (4)

Publication Number Publication Date
EP0108929A2 EP0108929A2 (fr) 1984-05-23
EP0108929A3 EP0108929A3 (en) 1985-09-25
EP0108929B1 true EP0108929B1 (fr) 1988-06-29
EP0108929B2 EP0108929B2 (fr) 1991-09-04

Family

ID=6745464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110121A Expired - Lifetime EP0108929B2 (fr) 1982-11-11 1983-10-11 Dispositif de distribution d'un fluide

Country Status (4)

Country Link
US (1) US4667878A (fr)
EP (1) EP0108929B2 (fr)
JP (1) JPS5998757A (fr)
DE (2) DE8231663U1 (fr)

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GB9511522D0 (en) * 1995-06-07 1995-08-02 Mercol Prod Ltd Apparatus for applying paint and the like
US6776360B2 (en) * 2001-06-26 2004-08-17 Spraying Systems Co. Spray gun with improved needle shut-off valve sealing arrangement
US7036756B2 (en) * 2002-12-31 2006-05-02 Melendez Henry D Anti-sputter fluid flow control apparatus for paint sprayers
US6983899B2 (en) * 2002-12-31 2006-01-10 Melendez Henry D Handheld paint spraying apparatus with anti-sputter spray nozzle
EP1930084B1 (fr) 2006-12-05 2009-06-03 SATA GmbH & Co. KG Event pour le godet à gravité d'un pistolet à peinture
WO2009113980A1 (fr) 2008-03-12 2009-09-17 Fox Jeffrey D Cartouche de pistolet de pulvérisation jetable
US8807460B2 (en) 2009-04-28 2014-08-19 Finishing Brands Holdings Inc. Fluid through needle for applying multiple component material
DE102009032399A1 (de) 2009-07-08 2011-01-13 Sata Gmbh & Co. Kg Farbspritzpistole
DE102010019771A1 (de) 2010-05-07 2011-11-10 Dürr Systems GmbH Zerstäuber mit einem Gittermischer
DE202010007355U1 (de) * 2010-05-28 2011-10-20 Sata Gmbh & Co. Kg Düsenkopf für eine Spritzvorrichtung
EP2646166B1 (fr) 2010-12-02 2018-11-07 SATA GmbH & Co. KG Pistolet de pulvérisation et accessoire
ES2855001T5 (es) 2011-06-30 2024-02-23 Sata Gmbh & Co Kg Pistola pulverizadora fácil de limpiar, accesorio para ella, procedimiento de montaje y desmontaje
CA155474S (en) 2013-09-27 2015-08-27 Sata Gmbh & Co Kg Spray gun
DE202013105779U1 (de) 2013-12-18 2015-03-19 Sata Gmbh & Co. Kg Luftdüsenabschluss für eine Lackierpistole
CN104084327B (zh) * 2014-07-19 2017-01-25 赵杰 自清洁水喷头
USD758537S1 (en) 2014-07-31 2016-06-07 Sata Gmbh & Co. Kg Paint spray gun rear portion
CN105289870B (zh) 2014-07-31 2019-09-24 萨塔有限两合公司 喷枪的制造方法、喷枪、喷枪本体以及盖
CA159961S (en) 2014-07-31 2015-07-17 Sata Gmbh & Co Kg Spray gun
USD768820S1 (en) 2014-09-03 2016-10-11 Sata Gmbh & Co. Kg Paint spray gun with pattern
GB2538703A (en) * 2015-05-18 2016-11-30 Magna Specialist Confectioners Ltd Confectionary deposition apparatus
DE102015006484A1 (de) 2015-05-22 2016-11-24 Sata Gmbh & Co. Kg Düsenanordnung für eine Spritzpistole, insbesondere Farbspritzpistole und Spritzpistole, insbesondere Farbspritzpistole
DE102015008661A1 (de) 2015-07-03 2017-01-05 Dürr Systems Ag Nadelventil
DE102015008659B4 (de) * 2015-07-03 2019-06-19 Dürr Systems Ag Beschichtungsmittelventil und Rotationszerstäuber
CN105104337B (zh) * 2015-08-14 2017-12-01 华南农业大学 一种通过液体压力控制喷施浓度的混药喷头
CN105363582B (zh) * 2015-12-16 2018-06-12 山东大学 一种能够调整喷射器喷嘴面积的喷针控制装置及喷射器
DE102015016474A1 (de) 2015-12-21 2017-06-22 Sata Gmbh & Co. Kg Luftkappe und Düsenanordnung für eine Spritzpistole und Spritzpistole
CN205995666U (zh) 2016-08-19 2017-03-08 萨塔有限两合公司 喷枪及其扳机
CN205966208U (zh) 2016-08-19 2017-02-22 萨塔有限两合公司 风帽组件以及喷枪
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
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
WO2018184636A2 (fr) 2018-08-01 2018-10-11 Sata Gmbh & Co. Kg Jeu de buses pour un pistolet pulvérisateur, système de pistolet pulvérisateur, procédé de réalisation d'un module de buses, procédé de sélection d'un module de buses d'un jeu de buses pour un travail de peinture, système de sélection et produit-programme informatique

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CA1038123A (fr) * 1974-08-01 1978-09-12 Du Pont Of Canada Limited Soupape d'injection autopurgeuse
DE2757522C2 (de) * 1977-12-23 1979-11-22 Behr, Hans, 7000 Stuttgart Rund- oder Ringstrahldüse zum Erzeugen und Abstrahlen eines Nebels oder Aerosols zur Beschichtung von Gegenständen

Also Published As

Publication number Publication date
DE8231663U1 (de) 1983-08-18
EP0108929A2 (fr) 1984-05-23
JPS5998757A (ja) 1984-06-07
EP0108929B2 (fr) 1991-09-04
US4667878A (en) 1987-05-26
DE3377199D1 (en) 1988-08-04
JPH0249141B2 (fr) 1990-10-29
EP0108929A3 (en) 1985-09-25

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