EP0104394A2 - Appareil pour la pulvérisation de la peinture liquide - Google Patents

Appareil pour la pulvérisation de la peinture liquide Download PDF

Info

Publication number
EP0104394A2
EP0104394A2 EP83108023A EP83108023A EP0104394A2 EP 0104394 A2 EP0104394 A2 EP 0104394A2 EP 83108023 A EP83108023 A EP 83108023A EP 83108023 A EP83108023 A EP 83108023A EP 0104394 A2 EP0104394 A2 EP 0104394A2
Authority
EP
European Patent Office
Prior art keywords
bell
deflecting part
opening
paint
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.)
Granted
Application number
EP83108023A
Other languages
German (de)
English (en)
Other versions
EP0104394B1 (fr
EP0104394A3 (en
Inventor
Hans Behr
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
Application filed by Hermann Behr and Sohn GmbH and Co filed Critical Hermann Behr and Sohn GmbH and Co
Publication of EP0104394A2 publication Critical patent/EP0104394A2/fr
Publication of EP0104394A3 publication Critical patent/EP0104394A3/de
Application granted granted Critical
Publication of EP0104394B1 publication Critical patent/EP0104394B1/fr
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, i.e. the spraying being effected by centrifugal forces
    • B05B3/1064—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, i.e. the spraying being effected by centrifugal forces the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft
    • 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
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • 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, i.e. the spraying being effected by centrifugal forces
    • 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, i.e. the spraying being effected by centrifugal forces 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, i.e. the spraying being effected by centrifugal forces 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 device for atomizing liquid paint, with an atomizer bell rotatable about a central axis, which has an axial opening at its base and an annular, coaxial overflow surface on its axially front end face, the radially inner edge of which has the axially front end of the opening is connected by means of a transition surface; with a coaxial, rotationally symmetrical deflection part, which lies opposite the opening with the back of its optionally color-permeable center and whose radially outer edge forms an annular gap together with the bell, which interrupts the transition from the front of the deflection part to the overflow surface; and with a nozzle located at the front end of a coaxial paint feed tube, which opens out axially with respect to the center of the deflection part.
  • a fastening part is integrally formed on the edge of the deflecting part, which consists mainly of an elastic retaining ring with a trapezoidal cross section, which is largely radially outward and axially inward on the longitudinal profile right-angled transition surface of the atomizer bell.
  • the radial inner surface of the retaining ring is an axially diverging conical surface, which forms a free space with the axial inner surface of the deflecting part.
  • annular groove in the fastening part forms a cavity which is closed by the cylindrical section of the transition surface of the atomizer bell and which communicates with the above-mentioned space via many radial channels evenly distributed over the circumference of the deflection part , which are arranged at the transition from the fastening part to the deflecting part on its rear surface, so that paint liquid emerging from the nozzle and reaching this surface flows radially outward on the axial inner surface of the deflecting part and through the channels, the annular cavity and the annular gap onto the Overflow area of the bell arrives.
  • the invention is therefore based on the object of creating a device of this type which avoids this disadvantage and which ensures complete self-cleaning during washing.
  • Egleitments canal as B should be designed as short as possible in principle, all ink-carrying areas and the limited volume of these so that the bell is fast and residue-free flushable.
  • the gap width of the space between the bell and the deflecting part is essentially constant, so that stable flow conditions are established when atomizing.
  • the nozzle is arranged in the opening on the base of the bell, so that hardly any paint can be deposited on the outer nozzle surface.
  • the atomizer bell 10 of the first embodiment consists of a circular disk-shaped base 12 with a central bore 14 as an opening, the axis of which determines the bell axis 16; of a conical ring 18 formed on the annular edge of the base 12, which is axially forward, i.e. to the right in the drawing, diverges; and from an annular lip 20 formed on the ring 18 and projecting axially forward with a rounded spray edge 22.
  • the atomizer bell 10 On its axially front end face, the atomizer bell 10 has an annular, coaxial overflow surface 24, the radial of which The inner edge is connected to the axially front end of the bore 14 by means of an obtuse-angled transition surface 26, the annular part 26.1 of which lies in a radial plane, the base of the bell and the annular part 26.2 of which lies in a conical surface with the axis 16, the inside of the bell ring 18 forms.
  • the atomizer bell 10 is provided with a largely trapezoidal deflecting part 28 in the central longitudinal section, the axial front surface 30 of which lies in a radial plane is flush with the overflow surface 24 of the bell and which, moreover, forms a gap-like intermediate space 32 with the transition surface 26 of the bell , whose width is preferably constant from 0.5 to 0.7 mm and which forms an annular gap 34 on the overflow surface 24.
  • the deflection part 28 is held by means of a spacer 36 which is press-fitted in the deflection part and in the bell bottom 12.
  • the deflecting part 28 On its rear side facing the bell bottom 12, the deflecting part 28 is provided with an insert 38 in a recess 40 of the same which extends through the front of the deflecting part.
  • This insert 38 has a centrally located cannula labyrinth which is connected to an axial blind bore 42 which opens into the bore 14 of the bell bottom 12 at the apex of an axially inwardly directed bell-shaped elevation 44 of the insert, the base of which bears with the axially front edge of the bore 14 forms an annular passage 46 which connects the space 32 between the deflecting part 28 and bell 10 with this bore.
  • the atomizer bell 10 is provided on its axial rear side with a socket 48 formed on its base 12, into which the axially front end of a hollow shaft 50 for rotating the bell is screwed about its axis 16.
  • a hollow shaft 50 for rotating the bell is screwed about its axis 16.
  • an ink supply tube 52 which stops when the atomizer bell 10 rotates, at the axially front end of which there is a paint nozzle 54 which projects into the bore 14 of the bell bottom 12 and axially opens there opposite the elevation 44 of the deflecting part insert 38 with a cross-sectional area, which is much larger than the cross-sectional area of the blind bore 38 of the insert.
  • the greater part of the color stream emerging from the nozzle 54 reaches the insert elevation 44 and thus through the annular passage 46 via the intermediate space 32 through the annular gap 34 to the overflow surface 24, while the smaller part of the color flow passes through the blind bore 42 and the subsequent cannula labyrinth via the front surface 30 of the deflecting part 28 after overcoming the annular gap 34 also reaches the overflow surface.
  • the same flow paths apply if, instead of paint, detergent is used to clean the atomizer bell 10.
  • the spacers 36 in the exemplary embodiment they are flowed around smoothly, so that hardly any color can adhere to them. Otherwise, this is completely excluded in the intermediate space 32.
  • the second differs from the first embodiment in that the spacers 136 are each designed as an outer collar of a sleeve 137, which is clamped between the completely flat rear surface 129 of the deflection part 128 and the bell base 126.1, a screw in each sleeve 136 156 is inserted, the head of which is sunk into the bell 110 and which is screwed into the deflection part 128.
  • the axial opening 114 on the bell base 126.1 widens axially in the shape of a trumpet.
  • An elevation of the insert 138 in the deflecting part 128 that is contrary to the breakthrough is missing.
  • the axial blind bore 142 is provided with a plurality of radial transverse bores 158 which intersect it at the same point and which open out at the bottom of the front bell-shaped recess 140 on the front surface 130 of the deflection part 128.
  • this has, apart from a raised knurling of part of the overflow surface 124, a radially inner, axially front spraying edge 160 and a radially outer, axially rear electrostatic charging edge 162, which run around and in profile are rectangular, defining a circumferential fillet 164, the profile of which is quarter-circular.

Landscapes

  • Nozzles (AREA)
  • Electrostatic Spraying Apparatus (AREA)
EP83108023A 1982-08-28 1983-08-13 Appareil pour la pulvérisation de la peinture liquide Expired EP0104394B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19828224329U DE8224329U1 (de) 1982-08-28 1982-08-28 Einrichtung zum vernebeln fluessiger farbe
DE8224329U 1982-08-28

Publications (3)

Publication Number Publication Date
EP0104394A2 true EP0104394A2 (fr) 1984-04-04
EP0104394A3 EP0104394A3 (en) 1985-06-19
EP0104394B1 EP0104394B1 (fr) 1987-06-16

Family

ID=6743161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108023A Expired EP0104394B1 (fr) 1982-08-28 1983-08-13 Appareil pour la pulvérisation de la peinture liquide

Country Status (2)

Country Link
EP (1) EP0104394B1 (fr)
DE (2) DE8224329U1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005418A1 (fr) * 1985-03-16 1986-09-25 Behr-Industrieanlagen Gmbh & Co. Dispositif de vaporisation de peintures liquides
EP0224052A2 (fr) * 1985-11-22 1987-06-03 Binks Manufacturing Company Pulvérisateur pouvant être rapidement nettoyé
AU589018B2 (en) * 1986-06-26 1989-09-28 Abb K.K. Air bearing rotary atomizer
FR2636864A1 (fr) * 1988-09-23 1990-03-30 Graco Inc Atomiseur rotatif
US4919333A (en) * 1986-06-26 1990-04-24 The Devilbiss Company Rotary paint atomizing device
US4997130A (en) * 1986-06-26 1991-03-05 Illinois Tool Works, Inc. Air bearing rotary atomizer
US5309958A (en) * 1991-10-23 1994-05-10 Shikoku Kakoki Co., Ltd. Filling apparatus for viscous foods
EP0861691A1 (fr) * 1997-02-05 1998-09-02 Illinois Tool Works Inc. Revêtement remplaçable pour la cloche d'un pulvérisateur rotatif
EP0878238A1 (fr) * 1996-12-03 1998-11-18 ABB Industry K.K. Unite d'application a tete de pulverisation rotative
US5934574A (en) * 1995-12-05 1999-08-10 Van Der Steur; Gunnar Rotary atomizer
WO1999049982A1 (fr) * 1998-04-01 1999-10-07 Sames S.A. Bol de pulverisation et projecteur rotatif electrostatique equipe d'un tel bol
EP1134026A3 (fr) * 2000-03-14 2002-12-11 Illinois Tool Works Inc. Système de revêtement électrostatique et bol de pulvérisation à deux arêtes

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3508970C1 (de) * 1985-03-13 1986-07-31 Walter Giersiepen GmbH & Co, 5608 Radevormwald Farbzerstäuber
DE3509874C2 (de) * 1985-03-19 1994-05-19 Behr & Sohn Hermann Einrichtung zum Vernebeln flüssiger Farbe
DE9419641U1 (de) * 1994-12-07 1995-02-02 Dürr GmbH, 70435 Stuttgart Rotationszerstäuber mit einem Glockenkörper
DE19506968A1 (de) * 1995-02-13 1996-08-14 Ind Lackieranlagen Schmidt Gmb Hochrotationszerstäuber
US8141797B2 (en) 2001-01-25 2012-03-27 Durr Systems Inc. Rotary atomizer for particulate paints
FR2836638B1 (fr) † 2002-03-01 2004-12-10 Sames Technologies Dispositif de pulverisation de produit de revetement liquide
DE102009038290A1 (de) * 2009-08-21 2011-02-24 Abb Ag Zerstäuberglocke

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE665065A (fr) * 1965-06-24
FR1488361A (fr) * 1966-05-31 1967-07-13 Mongar Dispositif de projection et de formation à partir de plusieurs constituants d'un produit de revêtement ou de remplissage, et produit obtenu
EP0032391A1 (fr) * 1980-01-15 1981-07-22 Behr, Hans Dispositif de pulvérisation de peinture liquide

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE766966A (fr) * 1970-05-13 1971-10-01 Bosch Hausgeraete Gmbh Dispositif pour projeter des produits de revetement pulverulents

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE665065A (fr) * 1965-06-24
FR1488361A (fr) * 1966-05-31 1967-07-13 Mongar Dispositif de projection et de formation à partir de plusieurs constituants d'un produit de revêtement ou de remplissage, et produit obtenu
EP0032391A1 (fr) * 1980-01-15 1981-07-22 Behr, Hans Dispositif de pulvérisation de peinture liquide

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005418A1 (fr) * 1985-03-16 1986-09-25 Behr-Industrieanlagen Gmbh & Co. Dispositif de vaporisation de peintures liquides
EP0224052A2 (fr) * 1985-11-22 1987-06-03 Binks Manufacturing Company Pulvérisateur pouvant être rapidement nettoyé
EP0224052A3 (en) * 1985-11-22 1987-09-02 Binks Manufacturing Company Rapidly cleanable atomizer
AU589018B2 (en) * 1986-06-26 1989-09-28 Abb K.K. Air bearing rotary atomizer
US4919333A (en) * 1986-06-26 1990-04-24 The Devilbiss Company Rotary paint atomizing device
US4997130A (en) * 1986-06-26 1991-03-05 Illinois Tool Works, Inc. Air bearing rotary atomizer
FR2636864A1 (fr) * 1988-09-23 1990-03-30 Graco Inc Atomiseur rotatif
US5309958A (en) * 1991-10-23 1994-05-10 Shikoku Kakoki Co., Ltd. Filling apparatus for viscous foods
US5934574A (en) * 1995-12-05 1999-08-10 Van Der Steur; Gunnar Rotary atomizer
EP0878238A4 (fr) * 1996-12-03 2008-05-28 Abb Kk Unite d'application a tete de pulverisation rotative
EP0878238A1 (fr) * 1996-12-03 1998-11-18 ABB Industry K.K. Unite d'application a tete de pulverisation rotative
EP0861691A1 (fr) * 1997-02-05 1998-09-02 Illinois Tool Works Inc. Revêtement remplaçable pour la cloche d'un pulvérisateur rotatif
FR2776946A1 (fr) * 1998-04-01 1999-10-08 Sames Sa Bol de pulverisation et projecteur rotatif electrostatique equipe d'un tel bol
US6347754B1 (en) 1998-04-01 2002-02-19 Sames S.A Atomizing bowl and electrostatic rotary sprayhead unit equipped therewith
WO1999049982A1 (fr) * 1998-04-01 1999-10-07 Sames S.A. Bol de pulverisation et projecteur rotatif electrostatique equipe d'un tel bol
EP1134026A3 (fr) * 2000-03-14 2002-12-11 Illinois Tool Works Inc. Système de revêtement électrostatique et bol de pulvérisation à deux arêtes

Also Published As

Publication number Publication date
EP0104394B1 (fr) 1987-06-16
EP0104394A3 (en) 1985-06-19
DE3372078D1 (en) 1987-07-23
DE8224329U1 (de) 1983-01-05

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