EP1287897A2 - Dispositif de pulvérisation de liquides - Google Patents

Dispositif de pulvérisation de liquides Download PDF

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Publication number
EP1287897A2
EP1287897A2 EP02011815A EP02011815A EP1287897A2 EP 1287897 A2 EP1287897 A2 EP 1287897A2 EP 02011815 A EP02011815 A EP 02011815A EP 02011815 A EP02011815 A EP 02011815A EP 1287897 A2 EP1287897 A2 EP 1287897A2
Authority
EP
European Patent Office
Prior art keywords
spray nozzle
locking
socket
spray
main body
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.)
Withdrawn
Application number
EP02011815A
Other languages
German (de)
English (en)
Other versions
EP1287897A3 (fr
Inventor
Manfred Dankert
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.)
Carlisle Fluid Technologies Germany GmbH
Original Assignee
ITW Oberflaechentechnik GmbH
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 ITW Oberflaechentechnik GmbH filed Critical ITW Oberflaechentechnik GmbH
Publication of EP1287897A2 publication Critical patent/EP1287897A2/fr
Publication of EP1287897A3 publication Critical patent/EP1287897A3/fr
Withdrawn legal-status Critical Current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
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices

Definitions

  • the invention relates to a fluid spray device, in particular liquid Coating material according to the preamble of claim 1.
  • the invention relates to a fluid spray device containing one Spray nozzle, which is releasably attached to a main body through which extends at least one fluid channel for supplying fluid to the spray nozzle.
  • fluid used here is to be understood as the basic term, all includes fluid media, especially liquids, e.g. B. liquid Coating material, cleaning liquids, water, glue, release agents between objects to be separated, lubricants, emulsions, acids, bases, bases, etc.; also coating powder, which in a pressurized gas stream, for. B. Compressed air flow, pneumatically conveyed; still pressurized gases, e.g. B. compressed air or nitrogen, e.g. B. for blowing off (cleaning) or cooling objects, e.g. B. Spraying devices, or spraying devices for atomizing and shaping the Spray jet or for cleaning coating material channels or from coating or other objects.
  • the fluid can be electrically conductive or be non-conductive.
  • the fluid spray device can be without or with at least one High voltage electrode for electrostatic charging of the fluid.
  • the preferred field of application of the invention is liquid Is coating material, it is also suitable for powdered Coating material, which is pneumatically in a compressed gas stream, especially a compressed air flow is promoted.
  • a spraying device for liquid coating material is the spray nozzle on the main body through one formed between them Thread detachably fastened and secured by a screw ring.
  • This requires the Change and / or remove one for cleaning the spray nozzle relatively long time for unscrewing and screwing the Screw ring and the spray nozzle.
  • screwing the spray nozzle on also "feels" the rotary position by turning the spray nozzle back and forth in which the thread start of the spray nozzle with the thread start of the Main body is aligned. To attach and detach the spray nozzle was because of the high torque a tool is required.
  • Sprayers for spray coating material are commonly referred to as "Spray guns” referred to whether or not they have a handle for manual Have handling or for attachment to a machine device are formed, for example on a lifting stand or on a robot arm.
  • the invention relates to all possible applications.
  • a comparable spraying device is known from EP 0 846 498 A1 A2.
  • a electrostatic sprayer with a high voltage electrode is from the US 3,731,145 known.
  • the object of the invention is to be achieved, assembly and disassembly to facilitate the spray nozzle.
  • the main body and the detachably attachable to it Spray nozzles should be structurally simple and reliable. Leakage currents between the main body and the spray nozzle should also be high Pressing the fluid through a simple, yet effective and lasting Construction can be avoided.
  • the object is achieved according to the invention in that a detachable plug-turn quick connection between the spray nozzle and the main body is formed, in which the rear end portion of the spray nozzle as a connector part and the main body at the front end of its fluid channel as Jack is designed to receive the plug part that can be inserted into it, that the spray nozzle has at least one locking projection which of protrudes the plug part transversely, and that in the jack at least one after rear locking surface is formed, behind which the at least one Locking projection by turning the spray nozzle into its socket fully inserted axial position is rotatable to the spray nozzle in this To lock the axial position axially.
  • the spraying device according to the invention shown in FIGS. 1 to 4 contains one Spray nozzle 2, which is releasably attachable to the front end of a main body 4.
  • All types of fluids can be sprayed in the spray device.
  • As an an example coating material is described. This can be liquid or pneumatic promoted powder.
  • A extends through the main body 4 Through hole 6 into which a coating material supply hole 8 opens diagonally.
  • the section 12 of the through hole 6, which is different from the Mouth 14 of the supply bore 8 for such fluid up to the downstream end 16 of the through hole 6 extends, is in the following as Coating material channel 12 designated.
  • the front end portion 18 of the Coating material channel 12 is designed as a jack 18, in which the Spray nozzle 2 with its rear area designed as a plug part 19 axially Center axis 20 of the coating material channel 12 can be inserted.
  • the spray nozzle 2 has at least one, preferably two radial locking projections 22 and 24 by inserted pins or preferably in one piece with the material of the Spray nozzle 2 are formed and from diametrically opposite sides of the Project plug part 19 radially. Through the main body 4 and the spray nozzle 2 can extend further channels for further fluids.
  • the main body 4 is in the wall of the jack 18 with two diametrically opposite one another provided opposite longitudinal slots 26 and 28 to which a Inner circumferential groove 30 connects transversely.
  • the longitudinal slots 28 and the inner peripheral groove 30 have a width that is only slightly larger than the dimensions of the Locking projections 22 and 24 to receive and guide them and with together to form a bayonet-type quick-release fastener, through which the spray nozzle 2 by a plugging and rotating movement on the main body 4 attachable or detachable from this. With just a small rotary movement of for example 10 °, the spray nozzle 2 in the inner circumferential groove 30 of the Main body 4 are locked.
  • Each of the two longitudinal slots 26 and 28 forms together with that of them adjacent portion of the inner peripheral groove 30 or an inner partial peripheral groove 30 an L-shaped locking track for receiving and locking the Locking projections 22 bwz. 24.
  • Slits can be used instead of grooves be provided, and vice versa.
  • grooves or Slots are provided, which are only over a partial circumference of the wall of the Jack 18 extend.
  • the groove 30 or grooves or slots can be stops 54 and / or wedge-shaped clamping surfaces 33 on which the Locking projections 22 and 24 abut or run up when the Spray nozzle 2 in the socket 18. This turns the spray nozzle 2 limited and their rotary lock position defined.
  • wedge-shaped Clamping surfaces 33 ensure that the spray nozzle 2 is secured against rotation.
  • the inner circumferential groove 30 (or slot or other replacing it Circumferential recess) has a rear-facing locking surface 32, behind which the locking projections 22 and 24 engage.
  • a rubber-elastic compressible ring seal 34 (e.g. O-ring) is between a forward-facing transverse surface formed in the wall of the socket 18 36 and a formed on the outer periphery of the spray nozzle 2, pointing to the rear Transverse surface 38 used.
  • the ring seal 34 is located on a between the Locking projections 22, 24 and the rear end 40 of the spray nozzle 2 located place.
  • the ring seal 34 is due to the axial support of the Locking projections 22, 24 of the spray nozzle 2 on the rearward facing Locking surface 32 of the main body 4 in a partially compressed Status. This ensures a secure seal between the spray nozzle 2 and the Main body 4 and the spray nozzle 2 is from the ring seal 34 in Main body 4 kept wobble-free.
  • the spray nozzle 2 preferably has an axially rearward via the ring seal 34 out into the coating material channel 12 into the connector part end portion 42, which on the inner peripheral surface 44 of the Coating material channel 12 is free of play and sealing.
  • This Inner circumferential surface 44 thus forms an extension section of the Socket 18.
  • Another outer peripheral section 46 is preferably also located the spray nozzle 2, which is located in front of the locking projections 22, 24, wobble-free on the socket inner circumferential surface 48 in which the Interlocking track 26, 28, 30 is formed.
  • the spray nozzle 2 has one axial through hole 50 for the coating material, which as the rear Valve seat 51 is formed for a valve body 52, for example to the rear is expanded conically.
  • the valve body 52 is only by colons and dashes shown schematically. It is preferably a valve needle, as it is from a standing start the technology for spraying devices is known.
  • FIG. 5 shows an embodiment of the invention in which the same or similar Parts of FIGS. 1 to 4 are provided with the same reference numbers.
  • the axial distance x1 is also in FIG the leading edge of the locking projections 22, 24 and the trailing edge of the Ring seal 34 when the ring seal is in the uncompressed state, greater than the axial distance x2 between the one pointing backwards Locking surface 32 of the main body 4 and its front facing Transverse surface 36 against which the ring seal 34 rests when the spray nozzle 2 is mounted.
  • Fig. 5 shows the ring seal 34 once in solid lines on the Spray nozzle 2 and once in dashed lines in the main body 4.
  • These slots consist of an axially extending from the front end 16 extending longitudinal slot part 26-1 or 28-1, one at the axially rear End in the circumferential direction adjoining transverse slot part 30-1, and one its circumferential end 54 adjoining, extending forward short Slot projection 56, the front end of which forms the locking surface 32.
  • the forwardly extending slot projection 56 forms at the end of the Cross slot part 30-1 a paragraph for locking the locking projections 22nd or 24.
  • the hook-like, forwardly directed slot projection 56 is shorter than the rubber elastic maximum axial compression stroke of the ring seal 34.
  • the rearward facing locking surface portion 32-1 of the transverse slot 30-1 lies in an axial position, in which the contact with it Locking projection 22 and 24, the ring seal 34 more axially elastic compressed than when the locking projection 22 or 24 on the Locking surface 32.
  • the axial distance x3 of the rear facing Locking surface portion 32-1 has one between the other two Size x1 and x2 spacing.

Landscapes

  • Nozzles (AREA)
  • Spray Control Apparatus (AREA)
EP02011815A 2001-08-29 2002-05-28 Dispositif de pulvérisation de liquides Withdrawn EP1287897A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10142228A DE10142228A1 (de) 2001-08-29 2001-08-29 Fluidspritzvorrichtung
DE10142228 2001-08-29

Publications (2)

Publication Number Publication Date
EP1287897A2 true EP1287897A2 (fr) 2003-03-05
EP1287897A3 EP1287897A3 (fr) 2005-06-15

Family

ID=7696935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02011815A Withdrawn EP1287897A3 (fr) 2001-08-29 2002-05-28 Dispositif de pulvérisation de liquides

Country Status (4)

Country Link
US (1) US20030042338A1 (fr)
EP (1) EP1287897A3 (fr)
JP (1) JP2003071326A (fr)
DE (1) DE10142228A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1862239A1 (fr) 2006-06-02 2007-12-05 Baurmann, Erich F. Tête atomisante pour l application d un agent séparateur sur la surface d un moule
EP2477750A4 (fr) * 2009-09-16 2017-12-27 Sta-Rite Industries, LLC Système à baïonnette pour buses de pulvérisation

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6971590B2 (en) * 2003-12-30 2005-12-06 3M Innovative Properties Company Liquid spray gun with manually rotatable frictionally retained air cap
JP2008018296A (ja) * 2006-07-10 2008-01-31 Meiji Kikai Seisakusho:Kk エアースプレーガン
JP2012077817A (ja) * 2010-09-30 2012-04-19 Kokuyo Co Ltd 管路の接続構造
ITVI20110295A1 (it) * 2011-11-04 2013-05-05 Arno Drechsel Diffusore a getto con ugello a cambio rapido per impianti di irrigazione
DE102013003897B4 (de) * 2013-03-06 2017-08-03 Audi Ag Düsenträger für die Befestigung einer Lackierdüse an einer Lackzerstäubereinrichtung und Lackzerstäubereinrichtung mit einem solchen Düsenträger
JP2016019954A (ja) * 2014-07-15 2016-02-04 株式会社いけうち 脱着式のスプレーノズル
DE102016118872A1 (de) * 2016-10-05 2018-04-05 Glatt Ingenieurtechnik Gmbh Sicherheitsvorrichtung für fluidführende Bauteile einer Düse; Verfahren zur Sicherung mindestens eines fluidführenden Bauteils einer Düse
CN113019736A (zh) * 2016-12-06 2021-06-25 3M创新有限公司 液体喷枪喷嘴组件和液体喷枪组件

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731145A (en) 1970-11-23 1973-05-01 Nordson Corp Electrostatic spray gun with self-contained miniaturized power pack integral therewith
EP0846498A1 (fr) 1996-12-06 1998-06-10 ITW Oberflächentechnik GmbH Installation de revêtement par pulverisation avec surveillance automatique du fonctionnement

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB700183A (en) * 1950-12-13 1953-11-25 Eclipse Spraying Co Ltd Improvements in sprayers
FR1487141A (fr) * 1966-07-20 1967-06-30 Spraying Systems Co Ajutage de pulvérisation
US3831862A (en) * 1973-04-11 1974-08-27 Airless Spray Tip Mfg Spray tip
US3930619A (en) * 1974-11-18 1976-01-06 Gustave S. Levey Adjustable orifice spray gun
CA1156695A (fr) * 1979-10-10 1983-11-08 Macmillan Bloedel Limited Ajutage arroseur autoprotege
DE3111295A1 (de) * 1981-03-23 1982-10-07 Rudolf Hübner GmbH & Co Apparatebau, 7775 Bermatingen "wendbare spritzduese"
US4480791A (en) * 1982-06-25 1984-11-06 Ward Jarrel D Sprayer apparatus
CA2039681C (fr) * 1990-04-05 2001-02-20 Richard J. Hamilton Assemblage d'ajutage a desaccouplement rapide
US5421522A (en) * 1993-09-24 1995-06-06 Bex Engineering Ltd. Nozzle assembly
DE4443683C2 (de) * 1994-12-08 2002-10-17 Inda Industrieausruestungen Verbindungseinrichtung zum Anschließen von Spritzdüsen an eine Druckleitung
US5598974A (en) * 1995-01-13 1997-02-04 Nordson Corporation Reduced cavity module with interchangeable seat
US5727739A (en) * 1995-03-03 1998-03-17 Spraying Systems Co. Nozzle with quick disconnect spray tip
GB2328386B (en) * 1995-03-03 1999-07-21 Spraying Systems Co Nozzle with quick disconnect spray tip
JPH10220658A (ja) * 1997-02-13 1998-08-21 Nitto Kohki Co Ltd 継 手
US6244527B1 (en) * 2000-01-26 2001-06-12 Spraying Systems Co. Quick disconnect nozzle assembly
US6398128B1 (en) * 2000-01-26 2002-06-04 Spraying Systems Co. Quick disconnect nozzle assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731145A (en) 1970-11-23 1973-05-01 Nordson Corp Electrostatic spray gun with self-contained miniaturized power pack integral therewith
EP0846498A1 (fr) 1996-12-06 1998-06-10 ITW Oberflächentechnik GmbH Installation de revêtement par pulverisation avec surveillance automatique du fonctionnement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1862239A1 (fr) 2006-06-02 2007-12-05 Baurmann, Erich F. Tête atomisante pour l application d un agent séparateur sur la surface d un moule
EP2477750A4 (fr) * 2009-09-16 2017-12-27 Sta-Rite Industries, LLC Système à baïonnette pour buses de pulvérisation

Also Published As

Publication number Publication date
DE10142228A1 (de) 2003-04-30
EP1287897A3 (fr) 2005-06-15
JP2003071326A (ja) 2003-03-11
US20030042338A1 (en) 2003-03-06

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