EP0664161A1 - Vorrichtung zum Versprühen von Flüssigkeiten, insbesondere Farbe - Google Patents

Vorrichtung zum Versprühen von Flüssigkeiten, insbesondere Farbe Download PDF

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Publication number
EP0664161A1
EP0664161A1 EP95100260A EP95100260A EP0664161A1 EP 0664161 A1 EP0664161 A1 EP 0664161A1 EP 95100260 A EP95100260 A EP 95100260A EP 95100260 A EP95100260 A EP 95100260A EP 0664161 A1 EP0664161 A1 EP 0664161A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
paint
air
flat
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.)
Withdrawn
Application number
EP95100260A
Other languages
German (de)
English (en)
French (fr)
Inventor
Eugen Spirig
Roman Frick
Alex Thür
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.)
Wagner International AG
Original Assignee
Wagner International 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 Wagner International AG filed Critical Wagner International AG
Publication of EP0664161A1 publication Critical patent/EP0664161A1/de
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • B05B15/52—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles
    • B05B15/531—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using backflow
    • B05B15/534—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter for removal of clogging particles using backflow by reversing the nozzle relative to the supply conduit

Definitions

  • the invention relates to a device for spraying liquids, in particular paint.
  • Disassembling the nozzle is annoying for the user on the one hand because he has to interrupt the spraying process, and on the other hand it is time-consuming because he has to disassemble, clean and reassemble a whole series of components. There is a very high risk that parts will be lost and cannot be worked on, e.g. on a construction site.
  • Nozzles for airless spraying of paint are less susceptible to contamination because they are operated at higher pressures; on the other hand, turning devices are used in such nozzles for the purpose of nozzle cleaning, in which the actual nozzle is accommodated in a cylindrical or spherical receptacle and is rotatably arranged in a housing in such a way that the nozzle can be rotated through 180 ° into a cleaning blowing position in which the nozzle mouth faces the paint channel and then a "cleaning shot” is pressed through the paint channel. This makes disassembly for cleaning unnecessary (EP 0 337 091 A2, DE 32 31 652 A1).
  • such a nozzle should also be able to be used for airless spraying when the compressed air for the air support is switched off. It should therefore be possible to work with pressures up to at least 250 bar.
  • the air jets emitted should be able to be used to clean the workpieces to be coated or at least parts of them when the ink supply is interrupted.
  • an airlessly atomizing nozzle 3 with a sealing part 4 is inserted into a ball 1 which is flattened on one side and which is provided with an axial longitudinal bore 2, which is widened toward the front, and with a clamping ring 5 in held this hole.
  • the flattened side of the ball is in rotary connection with a rotary lever 9, with which the ball forms a turning device and by means of which it can be turned in a housing 6 by at least 180 ° about an axis of rotation Z.
  • the ball 1 is mounted in the housing 6 by means of 2 spherical caps 7 and 8.
  • One spherical cap 8 is supported against an inner shoulder of the housing 6, while the other spherical cap 7 is pressed against the ball 1 by the color pressure.
  • a connecting part 10 which is screwed tightly into the housing 6 with the aid of a sealant, receives a seal 11 on its flat end face in an annular groove, which seals the rear, flat end face of the spherical cap 7 and thus the paint channel 2 to the outside.
  • the connecting part 10 enables the connection to the inner body of the spray gun via a double cone 12, via which the parts of the paint channel 2 in the spray gun and in the ball are connected to one another and against the connecting part 10 on the one hand and the front end of a paint channel part 20 of the spray gun on the other hand seals.
  • the housing 6 in FIGS. 2 and 3 each has a pair of air guide channels 13, 14 and 15, 16, which are connected to the air channels in the spray gun in a sealed manner and are connected to the nozzle body and to the nozzle body and to the nozzle nozzle 3 ', have flat color jet directed air outlet openings 13 ', 14' and 15 ', 16'.
  • the air duct pair 13, 14 is directed with its air outlet openings 13 ', 14' in such a way that the air jets are directed onto the flat sides of the color jet and essentially envelop the color jet.
  • the air channels can be connected to a pressure control device (not shown) in the spray gun in order to be able to adapt the air pressure to the amount of paint delivered.
  • the air ducts 15 and 16 shown in FIG. 2 lie in a plane perpendicular to the plane of the air ducts 13, 14 and are likewise connected to corresponding air duct ducts in the spray gun. Their air outlet openings 15 ', 16' are directed so that they meet the pointed sides of the flat color jet emitted.
  • a pressure control device provided in the spray gun has the effect that the size of the air pressure can be adjusted from 0 to a maximum value and thus takes over the desired deformation of the paint jet.
  • the axis of rotation Z is offset by 45 ° to the planes of the air duct pairs 13, 14 and 15, 16, if both Air jets are to be applied to the flat sides as well as to the pointed sides of the delivered flat color jet (FIG. 4). If only one pair of air ducts is provided (not shown) in order to direct air jets only onto the flat sides of the color jet, then the axis of rotation Z lies in a plane offset by 90 ° with respect to the plane of the air outlet ducts.
  • Figures 1 and 2 show the operating position when air-assisted spraying of paints
  • Figure 3 shows the cleaning position of the clogged nozzle.
  • the ball was rotated by 180 °, so that now the slot-shaped nozzle mouth of the nozzle 3 is in operative connection with the paint channel 2 of the spray gun, while the longitudinal bore 2 in the ball is open to the atmosphere.
  • paint is blown "backwards" through the nozzle 2 via the paint channel of the spray gun.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Spray Control Apparatus (AREA)
  • Nozzles (AREA)
EP95100260A 1994-01-19 1995-01-10 Vorrichtung zum Versprühen von Flüssigkeiten, insbesondere Farbe Withdrawn EP0664161A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4401488A DE4401488A1 (de) 1994-01-19 1994-01-19 Vorrichtung zum Versprühen von Flüssigkeiten, insbesondere Farbe
DE4401488 1994-01-19

Publications (1)

Publication Number Publication Date
EP0664161A1 true EP0664161A1 (de) 1995-07-26

Family

ID=6508253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100260A Withdrawn EP0664161A1 (de) 1994-01-19 1995-01-10 Vorrichtung zum Versprühen von Flüssigkeiten, insbesondere Farbe

Country Status (3)

Country Link
EP (1) EP0664161A1 (ja)
JP (1) JPH07213965A (ja)
DE (1) DE4401488A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0804969A2 (en) * 1996-04-16 1997-11-05 Graco Inc. Reversible tip for high pressure air assisted spraying
WO1998009733A1 (fr) * 1996-09-04 1998-03-12 Exit S.A. Tete de pulverisation
CN110653077A (zh) * 2019-10-09 2020-01-07 湖南大用环保科技有限公司 自清洁防堵喷嘴
CN112547386A (zh) * 2020-12-04 2021-03-26 北京东方昊为工业装备有限公司 易于疏通的喷枪及疏通喷枪堵塞的方法

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW362997B (en) * 1995-03-22 1999-07-01 Graco Inc Texture air atomizer for airless spray guns
US6325853B1 (en) * 1996-07-19 2001-12-04 Nordson Corporation Apparatus for applying a liquid coating with an improved spray nozzle
DE29622482U1 (de) * 1996-12-27 1997-02-13 Goldberg, Hans, 88709 Hagnau Vorrichtung zum Reinigen verstopfter Düsen bei der kombinierten pneumatisch-hydraulischen Zerstäubung
US9534619B2 (en) 2013-06-26 2017-01-03 Nelson Irrigation Corporation Sprinkler with multi-functional, side-load nozzle with nozzle storage clip and related tool
US9403177B2 (en) 2013-06-26 2016-08-02 Nelson Irrigation Corporation Sprinkler with multi-functional, side-load nozzle
US9283577B2 (en) 2013-06-26 2016-03-15 Nelson Irrigation Corporation Sprinkler with multi-functional, side-load nozzle
US9387494B2 (en) 2013-10-10 2016-07-12 Nelson Irrigation Corporation Sprinkler with multi-functional, side-load nozzle insert with ball-type valve
WO2016172105A1 (en) 2015-04-20 2016-10-27 Wagner Spray Tech Corporation Low pressure spray tip configurations
US20190283054A1 (en) 2018-03-15 2019-09-19 Wagner Spray Tech Corportaion Spray tip design and manufacture
CN112827696B (zh) * 2021-01-02 2021-12-14 乐清市路航电气有限公司 一种环氧地坪辊涂装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116882A (en) * 1962-01-25 1964-01-07 Gray Company Inc Turret-nozzle for paint spray guns
GB1200012A (en) * 1968-01-10 1970-07-29 Delavan Watson Ltd Improvements in or relating to spray head or nozzle assemblies for spray guns
SU1310031A2 (ru) * 1985-02-19 1987-05-15 Предприятие П/Я А-1080 Распылительный пистолет
JPH01262961A (ja) * 1988-04-13 1989-10-19 Meiji Kikai Seisakusho:Kk 混合型スプレーガン

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635400A (en) * 1970-03-27 1972-01-18 Nordson Corp Paint spraying method and apparatus
US3955763A (en) * 1975-05-19 1976-05-11 Graco Inc. Rotatable spray nozzle
US4256260A (en) * 1979-04-23 1981-03-17 Piggott Richard G Spray head

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116882A (en) * 1962-01-25 1964-01-07 Gray Company Inc Turret-nozzle for paint spray guns
GB1200012A (en) * 1968-01-10 1970-07-29 Delavan Watson Ltd Improvements in or relating to spray head or nozzle assemblies for spray guns
SU1310031A2 (ru) * 1985-02-19 1987-05-15 Предприятие П/Я А-1080 Распылительный пистолет
JPH01262961A (ja) * 1988-04-13 1989-10-19 Meiji Kikai Seisakusho:Kk 混合型スプレーガン

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 5187, 30 December 1987 Derwent World Patents Index; Class P42, AN 87-361128 *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 20 (C - 676) 17 January 1989 (1989-01-17) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0804969A2 (en) * 1996-04-16 1997-11-05 Graco Inc. Reversible tip for high pressure air assisted spraying
EP0804969A3 (en) * 1996-04-16 2000-05-24 Graco Inc. Reversible tip for high pressure air assisted spraying
WO1998009733A1 (fr) * 1996-09-04 1998-03-12 Exit S.A. Tete de pulverisation
CN110653077A (zh) * 2019-10-09 2020-01-07 湖南大用环保科技有限公司 自清洁防堵喷嘴
CN112547386A (zh) * 2020-12-04 2021-03-26 北京东方昊为工业装备有限公司 易于疏通的喷枪及疏通喷枪堵塞的方法

Also Published As

Publication number Publication date
JPH07213965A (ja) 1995-08-15
DE4401488A1 (de) 1995-07-20

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