EP0050758B1 - Zerstäuber - Google Patents

Zerstäuber Download PDF

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Publication number
EP0050758B1
EP0050758B1 EP81108010A EP81108010A EP0050758B1 EP 0050758 B1 EP0050758 B1 EP 0050758B1 EP 81108010 A EP81108010 A EP 81108010A EP 81108010 A EP81108010 A EP 81108010A EP 0050758 B1 EP0050758 B1 EP 0050758B1
Authority
EP
European Patent Office
Prior art keywords
grooves
lip
groove
atomizer according
overflow surface
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
EP81108010A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0050758A1 (de
Inventor
Kurt Dipl.-Ing. Vetter
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=25788705&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0050758(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
Priority to AT81108010T priority Critical patent/ATE7364T1/de
Publication of EP0050758A1 publication Critical patent/EP0050758A1/de
Application granted granted Critical
Publication of EP0050758B1 publication Critical patent/EP0050758B1/de
Expired 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
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member characterised by the rotating member
    • B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • 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
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
    • B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell

Definitions

  • the invention relates to a rotatable, electrically chargeable, essentially bell-shaped atomizer for generating a paint mist from an axially supplied paint liquid such as 2-component paint, for a system for the electrostatic application of atomized, charged particles of the paint mist to an object; with an annular, coaxial overflow surface for the color liquid and with an axially forwardly projecting annular lip on the radially and axially outer edge of the overflow surface, which on its radial inside with uniformly distributed on the circumference, approximately in the flow direction of the color liquid, channels for channeling the Liquid flow is provided, which end open at the atomization point of the lip.
  • a disadvantage of the known atomizer is that when atomizing color liquids which, like two-component paints, consist of at least two components, only a possibly incomplete mixture of the components takes place in a static mixer before the overflow surface is flowed over.
  • the invention is therefore based on the object of providing an atomizer of the type mentioned at the outset which renders this disadvantage harmless for the application of paint.
  • this object is achieved in that the grooves intersect in pairs. This advantageously ensures that the partial streams flowing in the grooves are mixed before they reach the atomization point, so that previously incomplete mixtures are perfected, since premixing is followed by postmixing.
  • Preferred embodiments of the atomizer according to the invention are characterized in that the grooves are incorporated in a radially inward elevation of the lip, the bottom of the groove continuously merging into the overflow area.
  • the particular advantage of these embodiments is that the partial streams penetrating into the grooves from the overflow surface do not find any stages that adversely affect the flow conditions, which arise when the grooves are incorporated into non-raised material.
  • each groove cuts two to four other transverse grooves at an angle of 30 ° to 90 °, because this results in particularly intensive post-mixing. It is best provided that the grooves have a triangular cross section, the largest groove width being 0.2 to 0.4 mm and the groove depth being half of it, and the width of the lip being approximately twice the perpendicular center-to-center distance of parallel grooves, such as has shown the trial.
  • the first embodiment according to FIGS. 1 to 3 mainly consists of a one-piece atomizer bell 10 with base 12, ring 14 and lip 16, from a coaxial central part 18 with hub 20 and plate 22 and from a coaxial intermediate part 24 which is enclosed by the bell ring 14 and on the one hand with the bell bottom 12 and on the other hand with the plate 22 of the central part 18 is screwed.
  • the central part 18 and the intermediate part 24 form an initially axial and, after deflection, radial annular channel 26, which opens out through an annular gap 28 formed by the edge of the plate 22 and the bell ring 14 onto an annular, coaxial, concave overflow surface 30, which partly extends from the ring 14, is partially formed by the lip 16 of the atomizer bell 10.
  • the axially projecting lip 16 is located on the radially and axially outer edge of the overflow surface 30 and is provided on its radial inside with straight grooves 32 which are evenly distributed over the circumference and intersect at 20 ° in pairs, the bisector on an annular atomizing edge 34 Lip 16 is vertical.
  • the grooves 32 are worked into a radially inward elevation 36 of the lip 16, the groove base 38 passing smoothly into the overflow surface 30.
  • Color liquid sent through the channel 26 exits through the annular gap 23 onto the overflow surface 30, on which it spreads axially forward and radially outward as a film, the flow of which is divided by the grooves 32, at the intersection points 40 of which the partial flows mix before they reach the atomizing edge 34.
  • the second embodiment according to FIGS. 4 and 5 largely corresponds to the first. So far shown parts of the second Embodiment match or correspond to parts of the first, they are designated by 100 higher reference numerals and are no longer described.
  • each groove 132 belonging to a pair of intersecting grooves 132 intersects two parallel grooves 132 so that two coaxial circular rows of intersections 140 are formed.
  • This groove arrangement is preferably produced by means of a knurling tool.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Nozzles (AREA)
EP81108010A 1980-10-24 1981-10-07 Zerstäuber Expired EP0050758B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108010T ATE7364T1 (de) 1980-10-24 1981-10-07 Zerstaeuber.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19803040136 DE3040136A1 (de) 1980-10-24 1980-10-24 Zerstaeuber
DE3040136 1980-10-24
DE8028390 1980-10-24

Publications (2)

Publication Number Publication Date
EP0050758A1 EP0050758A1 (de) 1982-05-05
EP0050758B1 true EP0050758B1 (de) 1984-05-09

Family

ID=25788705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108010A Expired EP0050758B1 (de) 1980-10-24 1981-10-07 Zerstäuber

Country Status (4)

Country Link
US (1) US4518119A (enrdf_load_stackoverflow)
EP (1) EP0050758B1 (enrdf_load_stackoverflow)
JP (1) JPS57136963A (enrdf_load_stackoverflow)
DE (2) DE8028390U1 (enrdf_load_stackoverflow)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6214959A (ja) * 1985-07-11 1987-01-23 Asahi Okuma Ind Co Ltd 静電塗装用回転霧化頭
JPS63229163A (ja) * 1987-03-19 1988-09-26 Toyota Motor Corp 回転霧化静電塗装装置の噴霧頭
US5078321A (en) * 1990-06-22 1992-01-07 Nordson Corporation Rotary atomizer cup
DE4411058C2 (de) * 1994-03-30 1997-04-03 Niklas Willy Gmbh Vorrichtung zum Beschichten von körnigem Gut
US6105886A (en) * 1995-05-19 2000-08-22 Nordson Corporation Powder spray gun with rotary distributor
US5934574A (en) * 1995-12-05 1999-08-10 Van Der Steur; Gunnar Rotary atomizer
US6053428A (en) * 1997-11-21 2000-04-25 Van Der Steur; Gunnar Rotary atomizer with integrated shaping air
US6076751A (en) * 1998-12-15 2000-06-20 Illinois Tool Works Inc. Method of charging using nonincendive rotary atomizer
US6889921B2 (en) * 2002-09-30 2005-05-10 Illinois Tool Works Inc. Bell cup skirt
US7128277B2 (en) 2003-07-29 2006-10-31 Illinois Tool Works Inc. Powder bell with secondary charging electrode
US20050023385A1 (en) * 2003-07-29 2005-02-03 Kui-Chiu Kwok Powder robot gun
US20050056212A1 (en) * 2003-09-15 2005-03-17 Schaupp John F. Split shroud for coating dispensing equipment
US20050173556A1 (en) * 2004-02-09 2005-08-11 Kui-Chiu Kwok Coating dispensing nozzle
JP4554334B2 (ja) * 2004-11-08 2010-09-29 トヨタ自動車株式会社 回転霧化頭および回転霧化塗装装置
DE102006022057B3 (de) * 2006-05-11 2007-10-31 Dürr Systems GmbH Applikationselement für einen Rotationszerstäuber und zugehöriges Betriebsverfahren
GB0625583D0 (en) * 2006-12-21 2007-01-31 Itw Ltd Paint spray apparatus
US8371517B2 (en) 2007-06-29 2013-02-12 Illinois Tool Works Inc. Powder gun deflector
US20090020626A1 (en) * 2007-07-16 2009-01-22 Illinois Tool Works Inc. Shaping air and bell cup combination
US8096264B2 (en) * 2007-11-30 2012-01-17 Illinois Tool Works Inc. Repulsion ring
US10155233B2 (en) * 2008-04-09 2018-12-18 Carlisle Fluid Technologies, Inc. Splash plate retention method and apparatus
US20090314855A1 (en) * 2008-06-18 2009-12-24 Illinois Tool Works Inc. Vector or swirl shaping air
DE102010019771A1 (de) 2010-05-07 2011-11-10 Dürr Systems GmbH Zerstäuber mit einem Gittermischer
CN108273672B (zh) * 2017-01-05 2020-10-20 都林安川机器人有限公司 涂料喷射装置用喷嘴
DE102017116669A1 (de) * 2017-07-24 2019-01-24 Eisenmann Se Glockenteller und Rotationszerstäuber
DE102017116715A1 (de) * 2017-07-24 2019-01-24 Eisenmann Se Düsenkopf für einen Rotationszerstäuber zum Aufbringen eines Beschichtungsmaterials auf einen Gegenstand
JP6985214B2 (ja) * 2018-06-21 2021-12-22 トヨタ自動車株式会社 回転霧化頭および塗装装置
FR3085855B1 (fr) * 2018-09-13 2020-09-18 R Pons Lance a incendie comportant deux rangees de dents intercalees sur la face avant de sa bague de tete

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1327256A (en) * 1920-01-06 Island
GB191009985A (en) * 1910-04-23 1911-02-02 Sydney Herbert Smith Improvements in Liquid Sprayers.
AU517923B2 (en) * 1977-02-07 1981-09-03 Ransburg Japan Ltd. Rotary paint atomizing device
FR2412351A1 (fr) * 1977-12-20 1979-07-20 Air Ind Projecteur electrostatique de peinture a bol ou a disque tournant avec un joint d'etancheite pneumatique
DE8000844U1 (de) * 1980-01-15 1980-04-24 Behr, Hans, 7000 Stuttgart Einrichtung zum Vernebeln flüssiger Farbe
DE3001209C2 (de) * 1980-01-15 1985-07-25 Behr, Hans, 7000 Stuttgart Vorrichtung zum Vernebeln flüssiger Farbe, insbesondere Lackzerstäuber

Also Published As

Publication number Publication date
JPS6121710B2 (enrdf_load_stackoverflow) 1986-05-28
US4518119A (en) 1985-05-21
DE3040136C2 (enrdf_load_stackoverflow) 1989-03-23
DE3040136A1 (de) 1982-06-03
DE8028390U1 (de) 1981-02-12
JPS57136963A (en) 1982-08-24
EP0050758A1 (de) 1982-05-05

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