EP0715896B1 - Rotationszerstäuber mit einem Glockenkörper - Google Patents

Rotationszerstäuber mit einem Glockenkörper Download PDF

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Publication number
EP0715896B1
EP0715896B1 EP95119236A EP95119236A EP0715896B1 EP 0715896 B1 EP0715896 B1 EP 0715896B1 EP 95119236 A EP95119236 A EP 95119236A EP 95119236 A EP95119236 A EP 95119236A EP 0715896 B1 EP0715896 B1 EP 0715896B1
Authority
EP
European Patent Office
Prior art keywords
bell body
washing agent
rotary atomiser
bell
washing
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
EP95119236A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0715896A3 (de
EP0715896A2 (de
Inventor
Rolf Schneider
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.)
Duerr Systems AG
Original Assignee
Duerr Systems 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 Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP0715896A2 publication Critical patent/EP0715896A2/de
Publication of EP0715896A3 publication Critical patent/EP0715896A3/de
Application granted granted Critical
Publication of EP0715896B1 publication Critical patent/EP0715896B1/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
    • 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
    • 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
    • B05B3/1035—Driving means; Parts thereof, e.g. turbine, shaft, bearings
    • B05B3/1042—Means for connecting, e.g. reversibly, the rotating spray member to its driving 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
    • 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
    • B05B15/555—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 discharged by cleaning nozzles
    • 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
    • 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
    • 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
    • B05B3/1092—Means for supplying shaping gas

Definitions

  • the invention relates to a rotary atomizer with a Bell body according to the preamble of claim 1.
  • Such Atomizers are known to work in electrostatic Color coating systems, for example for series painting used by vehicle bodies.
  • DE 43 06 799 A1 describes a rotary atomizer with a Bell body known to be coaxial from behind in the Bell body inserted fixed central tube construction for the material supply rotates one of the color channel contains a separate channel through which a detergent (which in particular means a color solvent) enters the interior of the bell body. Because of the Color channel separate detergent channel of the central tube construction is a flushing of the bell plate and one in the distributor or deflection part used in the bell cup possible without the need to first choose the color for this remove the color channel and accept the loss have to.
  • the separate channels of the pipe construction Conveniently open in a fastened to the deflecting part Ring body with which the deflecting part can be removed into the bell body is inserted, as known from DE-GM G 93 19 555.9 is.
  • a known solution from DE-GM G 86 07 841.0 of the above Problem is one removed from the central paint tube arranged in the radially outer region of the atomizer housing to provide your own detergent channel that connects to an external one Detergent source is connected and in on the conical Outer surface of the bell body directed nozzles opens.
  • Radial outside the detergent nozzles there is a ring of axially parallel ones Steering air nozzles, their radial distance from the axis of rotation approximately the largest radius of the outer surface of the Spray bell should correspond, and its purpose usually a shape control of the sprayed from the atomizer bell Coating material.
  • For the detergent supplied from the outside will have its own control system including valve, Valve drive and program control required.
  • the invention is therefore based on the object of a rotary atomizer specify which enables the lateral outer surface of the bell body without the usual spraying and preferably also with less effort than before clean.
  • the invention has the advantage that the more or more less conical forward diverging outer surface of the bell body through that from inside the bell body coming to the axially rear edge of this outer surface flowing detergent effectively and reliably without that unwanted wetting of other atomizer areas cleaned becomes. It becomes an even, simultaneous and splash-free Actuation of the outer surface of the bell plate reached.
  • At preferred embodiments can also be cleaned with be controlled in the same system as in normal Operation for regular brief or intermediate rinsing of the bell plate and optionally the central distributor or deflection part is needed, i.e. without its own valve and without additional tax expense by branching from the usual Short flush valve.
  • the drawing shows the Bell body of the rotary atomizer and schematically one steering air ring mounted on the rotary atomizer.
  • the bell body 1 is used to spray coating material such as. water-soluble or other colored lacquer, which flows over the overflow surface 2 to the spray edge 3, and is with its hub part 4 in a known manner in the open End of a (not shown) hollow shaft of the drive motor of the rotary atomizer.
  • This mounting structure enables a small, compact and light bell unit and a relatively short paint tube 7 around which the bell body 1 rotates. Through the front end of the Coaxially arranged to the axis of rotation of the color tube 7 becomes spraying coating material passed into the bell body. When changing colors, it usually flows instead a detergent through the paint channel of the paint tube 7.
  • the paint tube 7 is part of a fixed tube body 8, due to the additional eccentrically parallel to the paint tube Guide axial bores 9. Through these axial bores 9 outside of the color tube 7 you can see the interior of the bell unit rinse without using the paint tube 7 and e.g. Paint loss or having to accept larger amounts of detergent. This can be useful if regular cleaning not only necessary when changing colors, but for other reasons is.
  • the paint tube 7 and the holes 9 open in Interior of an annular body 13 fastened to the deflection part 10, with which the deflection part can be removed into the bell body 1 is plugged in.
  • the deflecting part 10 is to be atomized Coating material divided into partial flows, of which the a partial flow on the back of the deflecting part to the overflow surface 2 flows while the other partial flow through one Center opening on the front of the deflecting part and from there reaches the overflow surface 2.
  • the outer circumference of the bell body 1 by a diverging forward, at the continuously considered conical outer surface 5, between the spray edge 3 and a rear, collar-like edge 6 facing away from spray edge 3 extends.
  • Located radially inward on the edge 6 itself in the back of the bell body 1 between the conical Outer surface 5 and the axially front region of the hub part 4 a cross section, for example approximately U-shaped, axially more open to the rear, i.e. part of the outer surface of the Annulus 15 forming bell body.
  • the conical outer surface 5 can therefore be used for this Solvent or detergent from the detergent channel 9 'of central tube construction. It flows in rotating bell due to the centrifugal effect of the Connection channel 20, the annular space 29 and the channel 18, about the bottom or inner surface 16 and the radially outer side wall of the annular space 15 and finally over the rear edge 6 of the bell body 1, from where it is over the conical outer surface 5 distributed.
  • the annular space 29 has a larger one (on its outer circumference) Diameter than that between the hub part 4 and the fixed one Pipe construction formed gap 25. This can Prevent the rinsing liquid from getting through Centrifugal force collects on the outer circumference of the annular space 29, emerges from the bell body through the gap 25 and e.g. in rear bearing arrives. In addition to or instead of in the gap 25 also prevents the detergent from escaping dynamic seal 26 may be provided.
  • the annular space 15 can also have a different shape, for example with a radially outward inclined or curved outer side wall.
  • the shape of the annular space 15 can in particular depend on the number of external rinsing channels 18 available. If only one or only for constructive simplification few external rinsing channels are provided, it can be useful in the radially outer wall of the annular space 15 e.g. in the Near its bottom is a relatively small, circular collecting trough train (not shown) or the bottom (at 6) to be moved radially inwards to collect the detergent.
  • a ring part 30 mounted, which distributed around the circumference, to a compressed air source contains connected axially opening air nozzles 31, which Flushing detergent or solvent with steering air flowing over the outer surface 5 act upon.
  • These axial air nozzles have the shown Example a radial distance from the axis of rotation, which is approximately equal to half the diameter of the conical Outer surface 5 near its rear end and thus is only slightly larger than half the diameter of the edge 6. It is also possible to have several air nozzle rings with different ones Diameters and / or mouth directions can be provided.
  • a cleaning of the outer surface can also be done without the achieve described steering air effect, because that over the edge 6 flowing solvents due to their natural adhesive effect adheres to the outer surface 5.
  • This adhesive effect can be determined more clearly the larger the rounding radius is selected at edge 6.
  • the degree of rejuvenation of the conical outer surface 5 affects how well that Solvent applied.
  • the detergent or solvent not necessarily branched off from the central tube construction but it can also be done in another way inside the Bell body or to be cleaned radially within the one External area or, if available, in a the space corresponding to the annular space 15 or a corresponding one axial depression and from there laminar to the flow on the outer side of the bell.
  • a separate control valve can be provided with which the External rinsing process can be controlled separately.

Landscapes

  • Nozzles (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
EP95119236A 1994-12-07 1995-12-06 Rotationszerstäuber mit einem Glockenkörper Expired - Lifetime EP0715896B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9419641U 1994-12-07
DE9419641U DE9419641U1 (de) 1994-12-07 1994-12-07 Rotationszerstäuber mit einem Glockenkörper

Publications (3)

Publication Number Publication Date
EP0715896A2 EP0715896A2 (de) 1996-06-12
EP0715896A3 EP0715896A3 (de) 1997-04-23
EP0715896B1 true EP0715896B1 (de) 2001-04-04

Family

ID=6917120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95119236A Expired - Lifetime EP0715896B1 (de) 1994-12-07 1995-12-06 Rotationszerstäuber mit einem Glockenkörper

Country Status (10)

Country Link
US (1) US5707009A (ja)
EP (1) EP0715896B1 (ja)
JP (1) JP3940445B2 (ja)
KR (1) KR100384649B1 (ja)
AU (1) AU4022995A (ja)
BR (1) BR9505688A (ja)
CA (1) CA2164564C (ja)
CZ (1) CZ286837B6 (ja)
DE (2) DE9419641U1 (ja)
ES (1) ES2088776T3 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018129964A1 (de) 2018-11-27 2020-05-28 Dürr Systems Ag Rotationszerstäuber

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JP2809170B2 (ja) * 1996-01-19 1998-10-08 トヨタ自動車株式会社 回転霧化静電塗装装置
DE19636159A1 (de) * 1996-09-06 1998-03-12 Abb Patent Gmbh Rotationszerstäuber
DE69717416T2 (de) * 1996-10-01 2003-04-03 Alstom Power Kk Rotationszerstäubungskopf
WO1998024554A1 (fr) * 1996-12-03 1998-06-11 Abb Industry K.K. Unite d'application a tete de pulverisation rotative
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DE10101367A1 (de) * 2001-01-13 2002-08-01 Itw Oberflaechentechnik Gmbh Sprühverfahren und Sprühvorrichtung für Beschichtungsflüssigkeit
DE10101372A1 (de) 2001-01-13 2002-08-01 Itw Oberflaechentechnik Gmbh Sprühverfahren und Sprühvorrichtung für Beschichtungsflüssigkeit
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US8662416B2 (en) * 2007-05-02 2014-03-04 Ransburg Industrial Finishing K.K. Rotary atomizer
US8602326B2 (en) * 2007-07-03 2013-12-10 David M. Seitz Spray device having a parabolic flow surface
DE202009004682U1 (de) 2009-04-07 2009-10-01 Rüter, Rudi Glockenanordnung für einen Rotationszerstäuber
WO2011009641A1 (de) 2009-07-24 2011-01-27 Dürr Systems GmbH Rotationszerstäuber mit sprühglocke und verliersicherung
DE102009037604A1 (de) * 2009-08-14 2011-02-24 Dürr Systems GmbH Farbdüse für einen Glockenteller eines Rotationszerstäubers
DE102009042956A1 (de) 2009-09-24 2011-04-07 Dürr Systems GmbH Rotationszerstäuber und Verfahren zur Kontrolle seines Absprühkörpers
DE102009051254A1 (de) 2009-10-29 2010-06-17 Daimler Ag Rotationszerstäuber mit Lackablauf-Hemmvorrichtung
DE102009052656A1 (de) 2009-11-11 2011-05-12 Dürr Systems GmbH Applikationsvorrichtung zum Applizieren und Bestrahlen eines durch Strahlung härtbaren Beschichtungsmittels
US9022361B2 (en) 2012-01-05 2015-05-05 Ledebuhr Industries, Inc. Rotary atomizer drip control method and apparatus
US9433963B2 (en) * 2012-11-06 2016-09-06 Precision Valve & Automation, Inc. Adhesive dispensing assembly having a mechanism for cleaning the dispensing nozzle
US8851397B1 (en) * 2013-11-14 2014-10-07 Efc Systems, Inc. Bell cup atomizer having improved cleaning capability
EP3281706B1 (en) * 2015-04-08 2019-11-20 ABB Schweiz AG Rotary atomizer head-type coater
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DE102021127163A1 (de) 2021-10-20 2023-04-20 Dürr Systems Ag Glockenteller und Rotationszerstäuber mit einem solchen Glockenteller

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018129964A1 (de) 2018-11-27 2020-05-28 Dürr Systems Ag Rotationszerstäuber
WO2020108930A1 (de) 2018-11-27 2020-06-04 Dürr Systems Ag Rotationszerstäuber
DE102018129964B4 (de) 2018-11-27 2023-11-16 Dürr Systems Ag Rotationszerstäuber und dessen Betriebsverfahren sowie Beschichtungsroboter mit Rotationszerstäuber

Also Published As

Publication number Publication date
AU4022995A (en) 1996-06-13
CA2164564C (en) 2010-03-16
ES2088776T1 (es) 1996-09-16
KR960021162A (ko) 1996-07-18
EP0715896A3 (de) 1997-04-23
BR9505688A (pt) 1997-11-11
DE59509156D1 (de) 2001-05-10
DE9419641U1 (de) 1995-02-02
KR100384649B1 (ko) 2003-08-21
MX9505093A (es) 1998-10-31
ES2088776T3 (es) 2001-08-16
JPH08332415A (ja) 1996-12-17
CZ286837B6 (en) 2000-07-12
CA2164564A1 (en) 1996-06-08
CZ308295A3 (en) 1997-09-17
JP3940445B2 (ja) 2007-07-04
EP0715896A2 (de) 1996-06-12
US5707009A (en) 1998-01-13

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