EP0443113B1 - Düsenvorsatz für Pulversprühpistolen - Google Patents

Düsenvorsatz für Pulversprühpistolen Download PDF

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Publication number
EP0443113B1
EP0443113B1 EP19900122668 EP90122668A EP0443113B1 EP 0443113 B1 EP0443113 B1 EP 0443113B1 EP 19900122668 EP19900122668 EP 19900122668 EP 90122668 A EP90122668 A EP 90122668A EP 0443113 B1 EP0443113 B1 EP 0443113B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
nozzle
nozzle attachment
slot
spray gun
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 - Lifetime
Application number
EP19900122668
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0443113A3 (en
EP0443113A2 (de
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.)
Filing date
Publication date
Application filed by Wagner International AG filed Critical Wagner International AG
Publication of EP0443113A2 publication Critical patent/EP0443113A2/de
Publication of EP0443113A3 publication Critical patent/EP0443113A3/de
Application granted granted Critical
Publication of EP0443113B1 publication Critical patent/EP0443113B1/de
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
    • B05B1/12—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 nozzle slot is thus extended on both sides beyond the 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, with these end regions then being covered to a greater or lesser extent by a simple sliding sleeve with which As a result 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 protrudes in its foremost end position on 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, 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, then it begins to cover the outer slot areas 12a more and more until finally the two outer areas 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 usually required.
  • the diameter of the rear cylinder part 10a can be slightly 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 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 Düsenvorsatz für Pulversprühpistolen Expired - Lifetime EP0443113B1 (de)

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 EP0443113A2 (de) 1991-08-28
EP0443113A3 EP0443113A3 (en) 1992-03-25
EP0443113B1 true EP0443113B1 (de) 1995-02-22

Family

ID=6400595

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900122668 Expired - Lifetime EP0443113B1 (de) 1990-02-20 1990-11-27 Düsenvorsatz für Pulversprühpistolen

Country Status (2)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1470866A2 (de) 2003-04-22 2004-10-27 J. Wagner AG Düse für eine Pulversprühpistole

Families Citing this family (8)

* 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
US6207099B1 (en) 1999-10-20 2001-03-27 Kimberly-Clark Worldwide, Inc. Process for uniform cross-direction distribution of particulate material
US6267575B1 (en) * 1998-12-11 2001-07-31 Kimberly Clark Worldwide, Inc. Apparatus for the uniform deposition of particulate material in a substrate
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1470866A2 (de) 2003-04-22 2004-10-27 J. Wagner AG Düse für eine Pulversprühpistole

Also Published As

Publication number Publication date
EP0443113A3 (en) 1992-03-25
DE4005350A1 (de) 1991-08-22
EP0443113A2 (de) 1991-08-28
DE4005350C2 (enrdf_load_stackoverflow) 1993-03-18

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