EP0443113A2 - Adaptateur de buse pour pistolets de pulvérisation de poudre - Google Patents

Adaptateur de buse pour pistolets de pulvérisation de poudre Download PDF

Info

Publication number: EP0443113A2
Authority: EP; European Patent Office
Prior art keywords: cylinder; nozzle; nozzle attachment; slot; powder spray
Prior art date: 1990-02-20
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

EP90122668A

Other languages

German (de)

English (en)

Other versions

EP0443113A3 (en

EP0443113B1 (fr

Inventor

Radovan Dipl.-Ing. Talacko

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.)

1990-02-20

Filing date

1990-11-27

Publication date

1991-08-28

1990-11-27 Application filed by Wagner International AG filed Critical Wagner International AG

1991-08-28 Publication of EP0443113A2 publication Critical patent/EP0443113A2/fr

1992-03-25 Publication of EP0443113A3 publication Critical patent/EP0443113A3/de

1995-02-22 Application granted granted Critical

1995-02-22 Publication of EP0443113B1 publication Critical patent/EP0443113B1/fr

2010-11-27 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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
- B05B1/12—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
- 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
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
- B05B1/042—Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
- B05B5/032—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying for spraying particulate materials

Definitions

the invention relates to a nozzle attachment for powder spray guns, in particular electrostatic powder spray guns, according to the preamble of claim 1.
nozzle attachments have long been known in use, the nozzle attachment being detachably or non-detachably connected to the pistol tube of the spray gun.
the width of the powder flat jet generated depends on several factors, but above all on the length of the nozzle slot. If you want to change the width of the powder flat jet, it is necessary to replace the nozzle attachment with another nozzle attachment with a shorter or larger slot length. Although attempts have been made several times to create nozzle attachments with a length-adjustable nozzle slot, these attempts have led to structurally complex and unsatisfactory solutions.
the object of the present invention is therefore to improve a nozzle attachment of the type mentioned at the outset in such a way that the length of its nozzle slot can be varied within wide limits, but the nozzle attachment nevertheless remains structurally simple and is easy to handle.
the solution to this problem results from the characterizing features of patent claim 1.
the nozzle slot is thus extended on both sides beyond the flat or conical end face of the nozzle attachment, in such a way that the two end regions of the nozzle slot are located diametrically to one another in the cylinder jacket surfaces, a simple sliding sleeve then being able to cover these end regions more or less, with the consequence of an extension or shortening of the nozzle slot and thus a widening or narrowing of the powder flat jet.
the sliding sleeve can be moved so far forward that it projects in its foremost end position over the end face of the cylinder body.
the nozzle attachment consists of a cylinder body 10, the rear part 10a facing the spray gun has a larger diameter than its front part 10b.
the front cylinder part 10b is covered by a conical end face 11.
a nozzle slot 12 is cut into the end face 11 as a powder outlet, the two end regions 12a of which are cut into the jacket of the front cylinder part 10b.
the slot 12 not only extends over the end face 11 but is also extended beyond this on both sides into the front cylinder part 10b (FIG. 2).
On the front cylinder part 10b sits with friction a sliding sleeve 13.
14 denotes an electric charging electrode in the form of a central metal needle.
a powder-air mixture is supplied to the nozzle attachment in a conventional manner, which is charged by the electrode 14, which is connected to high voltage, and sprayed through the nozzle slot 12. If, as shown in FIG. 2, the sliding sleeve 13 is in its rear end position, the shoulder to the cylinder part 10a being a stop, then the slot 12 is open over its entire length, i.e. the two end regions 12a are also free. A very wide width powder jet is thus achieved.
the sliding sleeve 13 If the sliding sleeve 13 is now pushed forward, it begins to cover the slot outer regions 12a more and more until finally the two outer regions 12a are completely covered, as shown in FIG. 3. However, this means that the slot 12 is only open in its central region, that is to say in the region of the end face 11, with which a very narrow flat jet is achieved. After the sliding sleeve 13 can be moved continuously between the positions of FIGS. 2 and 3, the width of the flat jet can thus be changed continuously between the two limit values shown.
the sleeve 13 acts as a shaping element, that is, it grips the flat jet emerging from the central area of the nozzle slot into a substantially uniform round jet together.
the sliding sleeve 13 it is not only possible to change a wide flat jet continuously into a narrow flat jet, but also to convert the flat spray jet into an omnidirectional jet. But this takes into account all spray patterns that are usually required.
the diameter of the rear cylinder part 10a can be somewhat larger than that of the pistol tube of the spray gun, so that the attachment can simply be attached. If the diameter of the cylinder part 10a is equal to the diameter of the gun tube, the connection can be made, for example, by means of a union nut.
the diameter of the front cylinder part 10b is advantageously smaller than that of the rear cylinder part 10a; namely, the diameter of the front cylinder part 10b is decisive for the minimum width of the flat jet that can be generated, as is easy to understand. The smaller the diameter of the front cylinder part 10b and the longer the outer slot areas 12a are, the greater the range of change of the flat jet width.
the sleeve 13 can sit on the front cylinder part 10b by means of a frictional connection, but it can also be provided with an internal thread which engages in an external thread located on the front cylinder part 10b. Furthermore, stops can be attached which limit the sleeve 13 in its two end positions.
the sleeve 13 is preferably made of insulating material so as not to disturb the electrical field built up between the electrode 14 and the workpiece (not shown).
the nozzle attachment can also be an integral unit with the gun barrel of the spray gun, in which case the nozzle attachment is the foremost region of the gun barrel.
the electrode arrangement for the construction of the electrostatic field can have different configurations. Instead of the inner electrode shown in FIG. 1, it is also possible to work with outer electrodes, for example electrode needles, which protrude from the sliding sleeve 13. In this case, the wider the flat jet, the further back the electrode needles, which reduces the risk of electrode contamination.

Landscapes

Electrostatic Spraying Apparatus (AREA)

EP19900122668 1990-02-20 1990-11-27 Adaptateur de buse pour pistolets de pulvérisation de poudre Expired - Lifetime EP0443113B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4005350		1990-02-20
DE19904005350 DE4005350A1 (de)	1990-02-20	1990-02-20	Duesenvorsatz fuer pulverspruehpistolen

Publications (3)

Publication Number	Publication Date
EP0443113A2 true EP0443113A2 (fr)	1991-08-28
EP0443113A3 EP0443113A3 (en)	1992-03-25
EP0443113B1 EP0443113B1 (fr)	1995-02-22

Family

ID=6400595

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19900122668 Expired - Lifetime EP0443113B1 (fr)	1990-02-20	1990-11-27	Adaptateur de buse pour pistolets de pulvérisation de poudre

Country Status (2)

Country	Link
EP (1)	EP0443113B1 (fr)
DE (1)	DE4005350A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2000033782A1 (fr) *	1998-12-11	2000-06-15	Kimberly-Clark Worldwide, Inc.	Appareil permettant un depot uniforme de matiere particulaire sur un substrat
US6207099B1 (en)	1999-10-20	2001-03-27	Kimberly-Clark Worldwide, Inc.	Process for uniform cross-direction distribution of particulate material
EP1470866A3 (fr) *	2003-04-22	2007-10-10	J. Wagner AG	Buse pour pistolet de pulvérisation de poudre

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4141663C2 (de) *	1991-12-17	1996-09-19	Wagner Int	Elektrostatische Pulver-Beschichtungspistole
DE19621072A1 (de) *	1996-05-24	1997-11-27	Gema Volstatic Ag	Elektrostatische Sprühvorrichtung
AUPO692897A0 (en)	1997-05-21	1997-06-12	Tancheff, Brian	Dispensing means
DE10053292C1 (de) *	2000-10-27	2002-05-23	Eisenmann Lacktechnik Kg	Hochrotationszerstäuber zur Aufbringung von Pulverlack
CN109647644B (zh) *	2019-01-17	2024-04-02	常德天工机械有限公司	一种储气筒内部喷漆的喷枪和喷漆方法
CN110639718A (zh) *	2019-10-11	2020-01-03	江苏大学	一种气力辅助静电喷头

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2559592A (en) *	1947-02-21	1951-07-10	Leslie M Button	Vapor or fog nozzle
US2944743A (en) *	1958-08-26	1960-07-12	Otto Bernz Company Inc	Adjustable nozzles
DE2022088C3 (de) *	1970-05-06	1981-04-23	Graco Inc., Minneapolis, Minn.	Spritzpistole zum Aufbringen von Schutzschichten aus Kunststoffpulver
DE3608415A1 (de) *	1986-03-13	1987-09-24	Gema Ransburg Ag	Elektrostatische sprueheinrichtung fuer beschichtungspulver
FR2605533A1 (fr) *	1986-10-28	1988-04-29	Sames Sa	Projecteur de produit pulverulent en suspension dans l'air

1990
- 1990-02-20 DE DE19904005350 patent/DE4005350A1/de active Granted
- 1990-11-27 EP EP19900122668 patent/EP0443113B1/fr not_active Expired - Lifetime

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2000033782A1 (fr) *	1998-12-11	2000-06-15	Kimberly-Clark Worldwide, Inc.	Appareil permettant un depot uniforme de matiere particulaire sur un substrat
US6267575B1 (en)	1998-12-11	2001-07-31	Kimberly Clark Worldwide, Inc.	Apparatus for the uniform deposition of particulate material in a substrate
US6207099B1 (en)	1999-10-20	2001-03-27	Kimberly-Clark Worldwide, Inc.	Process for uniform cross-direction distribution of particulate material
EP1470866A3 (fr) *	2003-04-22	2007-10-10	J. Wagner AG	Buse pour pistolet de pulvérisation de poudre

Also Published As

Publication number	Publication date
EP0443113A3 (en)	1992-03-25
DE4005350C2 (fr)	1993-03-18
DE4005350A1 (de)	1991-08-22
EP0443113B1 (fr)	1995-02-22

Legal Events

Date	Code	Title	Description
1991-07-12	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1991-08-28	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): CH FR GB IT LI NL
1992-01-31	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1992-03-25	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): CH FR GB IT LI NL
1992-10-28	17P	Request for examination filed	Effective date: 19920901
1993-10-20	17Q	First examination report despatched	Effective date: 19930903
1995-01-06	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1995-02-22	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): CH FR GB IT LI NL
1995-03-17	ITF	It: translation for a ep patent filed
1995-05-24	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19950421
1995-06-02	ET	Fr: translation filed
1996-01-08	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1996-01-08	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1996-02-14	26N	No opposition filed
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2002-11-29	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 20021129 Year of fee payment: 13
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EP0383030B1 (fr)	1992-03-25	Dispositif pulvérisateur pour le revêtement électrostatique par pulvérisation
DE2059594B2 (de)	1973-02-22	Vorrichtung zum elektrostatischen aufstaeuben von farbstoffen, pulver,faserstoffen u.dgl
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EP0443113B1 (fr)	1995-02-22	Adaptateur de buse pour pistolets de pulvérisation de poudre
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DE2920917A1 (de)	1980-11-27	Kontakt-gasduese fuer schutzgasschweissbrenner
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EP1048359B1 (fr)	2003-10-22	Pistolet de pulvérisation pour l'application de revêtements
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