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WO2003009945A1 - Dispositif de nettoyage d'une cellule de revetement par poudre - Google Patents

Dispositif de nettoyage d'une cellule de revetement par poudre Download PDF

Info

Publication number
WO2003009945A1
WO2003009945A1 PCT/EP2002/008304 EP0208304W WO03009945A1 WO 2003009945 A1 WO2003009945 A1 WO 2003009945A1 EP 0208304 W EP0208304 W EP 0208304W WO 03009945 A1 WO03009945 A1 WO 03009945A1
Authority
WO
WIPO (PCT)
Prior art keywords
cabin
tube
cleaning device
wall
cleaning
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.)
Ceased
Application number
PCT/EP2002/008304
Other languages
German (de)
English (en)
Inventor
Geza Metzger
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.)
J Wagner AG
Original Assignee
J Wagner 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 J Wagner AG filed Critical J Wagner AG
Publication of WO2003009945A1 publication Critical patent/WO2003009945A1/fr
Anticipated expiration legal-status Critical
Priority to US10/500,698 priority Critical patent/US20050115587A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/41—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by cleaning the walls of the booth
    • 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
    • B05B1/005—Nozzles or other outlets specially adapted for discharging one or more gases
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/48—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths specially adapted for particulate material

Definitions

  • the invention relates to a cleaning device of a powder coating booth and a method for cleaning the powder coating booth according to the preambles of claims 1 and 11.
  • a cleaning device of this type is described in EP 727 258.
  • This cleaning device has two separate pipes for blowing off the side walls and the ceiling of one longitudinal half of the cabin. The two pipes are jointly along, i.e. H. in or against the transport direction of the workpieces, moved through the cabin.
  • the blow-off nozzles do not impact the floor, but remove powder residues by means of a discharge belt.
  • DE 35 16 826 discloses a cleaning device for a powder coating booth with an open tubular frame system.
  • the tubular frame is provided with nozzles that blow the coating powder off the surfaces to be cleaned with compressed air.
  • the tubular frame is moved longitudinally through the cabin so that the powder is blown off the inner surfaces during this movement.
  • a similar cleaning device is known from EP 200 681.
  • This cleaning device with an open tubular frame is also moved lengthwise through the cabin.
  • the cabin described is V-shaped in the base area, the tip of the V opening into a suction channel for sucking off the blown-off powder.
  • sponges can be mounted on the cleaning device, which wipe the surfaces with a damp cloth after blowing.
  • the cleaning system is moved lengthways through the cabin. In order to achieve an optimal blow-off effect, the cleaning system cannot be moved through the cabin too quickly. Long cabins therefore require a long cleaning time.
  • the object of the invention is to provide a method and a device for cleaning a coating booth which enable quick cleaning with a good cleaning effect, in particular in the case of long booths.
  • a cleaning device is not moved longitudinally through the cabin, but transversely to the direction of transport of the workpieces.
  • the cleaning device preferably has two separate tubes, one of which is assigned to one of the two longitudinal halves of the cabin.
  • the pipes are equipped with nozzles.
  • Each tube is first moved approximately horizontally by a drive transversely to the conveying direction and then from top to bottom through the cabin.
  • a cleaning fluid in particular compressed air, is applied to the nozzles, so that the powder adhering to the inner surfaces can be blown off.
  • the supply of cleaning fluid is preferably switched off and the pipes are transported back to their upper end position. This upper end position is advantageously outside the cabin so that the cleaning device does not become dirty during the coating operation.
  • the cleaning time depends essentially on the height and not on the length of the cabin. Since the cabins are usually much longer than high, the cleaning time is considerably shorter than in the known cleaning devices which are moved longitudinally through the cabin. The cleaning time can also be shortened by making the pipes larger Speed than being returned to its upper end position during its downward movement.
  • Another advantage is that the powder is blown in the direction of the suction and can therefore be extracted more efficiently.
  • FIG. 1 shows a cross section through a powder coating booth with cleaning device according to the invention during the cleaning of the side walls.
  • FIG. 2 shows a longitudinal section through the cabin according to FIG. 1, the side view of a tube
  • FIG. 3 in a partial longitudinal section corresponding to Fig. 2, but in larger
  • Fig. 4 in a partial longitudinal section like Fig. 3 shows a modified version of the
  • a powder coating booth 1 (hereinafter referred to as "booth") it can be seen that the booth has two longitudinal halves la, lb, side walls 2, a bottom 3 and one through a longitudinal slot 5 divided by a longitudinal center plane E. divided ceiling 4, 4.
  • the plates 6 are at a distance a from the floor 3 so that they allow excess powder deposited on the floor to be suctioned off over the entire length of the cabin 1.
  • the cabin 1 is closed at its longitudinal ends by end walls 9 which have openings 10 for the passage of the workpieces and the transport device.
  • the openings 10 are large enough to freely transport the workpieces into and out of the cabin 1.
  • sliding doors can be present, which are often used in such cabins (not shown).
  • guide grooves 11, 12 or 11 ', 12' are arranged in mirror image with respect to the longitudinal center plane E of the cabin.
  • each guide groove has a section with two approximately horizontally extending legs 14, 15, the leg 14 being arranged inside the cabin and the leg 15 outside the cabin on the end wall 9.
  • the two legs 14, 15 are connected via a web section 16 of the guide groove which runs through the slot 5.
  • the two legs 14, 15 are each assigned an inner support 17 and an outer support 18 for guide rollers 19.
  • Each pair of guide grooves 11, 11 'and 12, 12' each have a tube 20 which extends parallel to one another horizontally over the length of the cabin 1, specifically via a suspension 21 fastened to each tube end with associated guide roller 19 and roller chain 22, which is guided in FIG. 3 in the relevant guide groove 11, 11 ', 12, 12'.
  • the chain wheels 23 of each pair of roller chains assigned to one longitudinal half la or lb are driven by mutually aligned shafts 24 which rotate in the same direction and synchronously for each longitudinal half by a common drive motor 25 with a gear 26 connected downstream. are driven.
  • a separate drive with drive motor 25 and gear 26 is therefore provided for each tube 20.
  • each tube can be pulled up by rotating the pair of sprockets 23, 23 in one direction y and pushed downward by rotating the pair of sprockets in the other direction x, the sliding movement being supported by the weight of the tubes 20.
  • the two tubes can be moved in the same direction and synchronously by synchronizing the two drives with the chains 22, sprockets 23, shafts 24 and drive motors 25 with gears 26.
  • the two tubes 20 assigned to each cabin wall are arranged offset in height from one another according to FIG. 1.
  • the reason for this is that the central longitudinal slot 5 in the ceiling 4, 4 of the cabin 1 should be kept as narrow as possible, which is only possible if the two tubes 20 can pass this slot 5 in succession and not at the same time.
  • a narrower slot 5 has a favorable effect on the flow conditions in the cabin 1.
  • Each tube end of a tube 20 is gripped by a suspension 21 and supported by a guide roller 19 on supports 17, 18 next to the horizontal inner and outer sections ("webs") 14, 15 of the guide in order to prevent the roller chain 22 from tilting in these sections
  • the outermost end of each roller chain 22 is connected to the associated pipe end via a suspension 21 and slidably guided in the guide groove 11 or 11 '.
  • Each tube 20 is equipped with a series of nozzles 28 arranged at a defined, uniform distance b in the longitudinal direction of the tube.
  • the distance b of the nozzles in the longitudinal direction can be between 50 and 150 mm. In the experiment, particularly favorable results were obtained at a distance of 100 mm.
  • the guide grooves 11, 11 ', 12, 12 ' also define the wall distance c of the nozzles from the inner and top walls 2 and 4, respectively.
  • This wall distance c can vary in a range between 30 and 100 mm and is preferably about 50 mm.
  • the cleaning fluid always blows downward in the direction of the suction channels 7, 7.
  • the tubes In addition to the row of nozzles 28, the tubes have nozzles 28 'directed at the ends of the guide grooves in order to ensure that the guide grooves are also cleaned.
  • the roller chains are pushed by the drive 25, 26 over the chain wheels 23 in the direction of the solid arrows x, the tubes 20 in the cabin being carried along along the guide grooves (see FIG. 1).
  • compressed air is fed into the tubes via the connections 29 (FIG. 2) and blown out against the cabin walls 2, 4 via the nozzles 28.
  • the tubes reach their lower end position at the end of guide sections 13 of the guide grooves 11, 12 which are bent inwards in accordance with the inclined plates 6.
  • Powder deposited on the floor is sucked out of the cabin 1 via the suction channels 7 and the suction line 8.
  • the drives 25, 26 are switched in the opposite direction, so that the chain wheels 23 are rotated in the dashed arrow direction y and the roller chains 22 move the tubes 20 inside the cabin in the dashed arrow direction y up to their starting position outside the cabin up to the area pull the upper leg 15 of the guide grooves 11, 11 ', 12, 12'.
  • the guides with guide grooves 11 and 11 'for the tube 20 in the longitudinal half 1 a and with guide grooves 12 and 12' for the tube 20 in the longitudinal half 1 b lie inside the cabin, but with the exception of those above the 4 web sections of the webs 16 and the legs 15 - located in the embodiment described below according to FIG. 4, the guides lie completely outside the cabin.
  • the end walls are designed in a sandwich construction with an inner wall 9a and an outer wall 9b, which are connected by webs 9c.
  • This guide bar 32 has slots 33, 34 on both sides flanked, through which ambient air is sucked into the cabin interior in the direction of the arrow during operation.
  • the embodiment according to FIG. 4 has the important advantage that the guides are not exposed to contamination by the powder and are also easily accessible for maintenance from the outside.
  • blow-off time depends solely on the length of the path that the tubes 20 travel within the cabin, i. H. starting with the entry into the cabin first in the horizontal direction (for blowing off the inner surfaces of the ceiling 4) and then in the vertical direction downwards over the height of the cabin.
  • This path length is considerably less than in an arrangement in which pipes arranged vertically in the cabin are moved in the longitudinal direction of the cabin.

Landscapes

  • Cleaning In General (AREA)

Abstract

L'invention concerne un dispositif de nettoyage conçu pour une cellule de revêtement par poudre (1) assurant le transport et le revêtement par poudre de pièces à usiner. Au moins un tuyau (20) pourvu de buses (28) et destiné à pulvériser un fluide de nettoyage contre la paroi interne de la cellule (24) peut être déplacé à travers ladite cellule (1). L'invention est caractérisée en ce que ce tuyau est orienté dans le sens longitudinal de la cellule, et en ce qu'il peut être déplacé transversalement au sens de déplacement des pièces à usiner à travers la cellule, à une distance sensiblement constante de la paroi de la cellule.
PCT/EP2002/008304 2001-07-26 2002-07-25 Dispositif de nettoyage d'une cellule de revetement par poudre Ceased WO2003009945A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/500,698 US20050115587A1 (en) 2001-07-26 2004-07-02 Cleaning device of a powder coating booth

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10136453.9 2001-07-26
DE10136453A DE10136453A1 (de) 2001-07-26 2001-07-26 Reinigungseinrichtung einer Pulverbeschichtungskabine

Publications (1)

Publication Number Publication Date
WO2003009945A1 true WO2003009945A1 (fr) 2003-02-06

Family

ID=7693188

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/008304 Ceased WO2003009945A1 (fr) 2001-07-26 2002-07-25 Dispositif de nettoyage d'une cellule de revetement par poudre

Country Status (3)

Country Link
US (1) US20050115587A1 (fr)
DE (1) DE10136453A1 (fr)
WO (1) WO2003009945A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2319614A3 (fr) * 2009-06-25 2012-04-11 Herbert Dammann GmbH Dispositif de malaxage et de nettoyage pour récipients à liquide et procédé correspondant
CN106000749A (zh) * 2016-07-22 2016-10-12 裕东（中山）机械工程有限公司 一种可变位喷涂室
US11845096B2 (en) 2020-12-18 2023-12-19 Exel Industries Robot, system and method for electrostatic powder coating

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6647832B2 (en) * 2001-07-27 2003-11-18 Bobby Hu Wrench having two rigid supporting areas for a pawl
DE102006057696A1 (de) * 2006-12-07 2008-06-19 Eisenmann Anlagenbau Gmbh & Co. Kg Pulverbeschichtungskabine für eine Pulverbeschichtungsanlage
FI120576B (fi) * 2007-12-27 2009-12-15 Ari Koski Menetelmä jauhemaalauskaapin puhdistamiseksi ja jauhemaalauskaappi
US20110088727A1 (en) * 2009-10-15 2011-04-21 Slowe Daniel J Air duct cleaning system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5681390A (en) * 1994-09-16 1997-10-28 Sames S.A. Spray booth with a magnetic cleaning scraping bar
DE29717920U1 (de) * 1997-10-09 1997-11-20 Walther, Peter Anton, 89312 Günzburg Vorrichtung mit Blasdüsen zur Ausbildung eines richtungsstabilen Luftschleiers
JPH11300249A (ja) * 1998-04-16 1999-11-02 Matsuo Sangyo Kk 粉体塗装ブースのエアーブロー装置
WO2000066276A1 (fr) * 1999-05-04 2000-11-09 Kraemer Erich Procede de nettoyage de l'espace interieur d'une cabine de revetement, notamment d'une cabine de revetement par poudre, cabine de revetement, notamment cabine de revetement par poudre munie d'un dispositif de nettoyage

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DE2219040A1 (de) * 1972-04-19 1973-10-31 Otto Mueller Ohg Maschinen U T Spruehkabine zum verspruehen von kunststoffpulver auf gegenstaende zum zwecke ihrer ummantelung mit einer kunststoffschicht
SE424606B (sv) * 1978-12-06 1982-08-02 Loeoef Ingemar Sprutbox
DE4131287A1 (de) * 1991-09-20 1993-03-25 Gema Volstatic Ag Pulver-spruehbeschichtungsanlage
DE29521972U1 (de) * 1994-10-24 1998-12-24 Krämer, Erich, 96247 Michelau Pulverbeschichtungskabine
DE59507048D1 (de) * 1995-02-15 1999-11-18 Wagner International Ag Altsta Reinigungseinrichtung für eine Pulverbeschichtungskabine
DE19616220A1 (de) * 1996-04-23 1997-10-30 Erich Kraemer Pulverbeschichtungskabine
US5766061A (en) * 1996-10-04 1998-06-16 Eco-Snow Systems, Inc. Wafer cassette cleaning using carbon dioxide jet spray

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5681390A (en) * 1994-09-16 1997-10-28 Sames S.A. Spray booth with a magnetic cleaning scraping bar
DE29717920U1 (de) * 1997-10-09 1997-11-20 Walther, Peter Anton, 89312 Günzburg Vorrichtung mit Blasdüsen zur Ausbildung eines richtungsstabilen Luftschleiers
JPH11300249A (ja) * 1998-04-16 1999-11-02 Matsuo Sangyo Kk 粉体塗装ブースのエアーブロー装置
WO2000066276A1 (fr) * 1999-05-04 2000-11-09 Kraemer Erich Procede de nettoyage de l'espace interieur d'une cabine de revetement, notamment d'une cabine de revetement par poudre, cabine de revetement, notamment cabine de revetement par poudre munie d'un dispositif de nettoyage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2319614A3 (fr) * 2009-06-25 2012-04-11 Herbert Dammann GmbH Dispositif de malaxage et de nettoyage pour récipients à liquide et procédé correspondant
CN106000749A (zh) * 2016-07-22 2016-10-12 裕东（中山）机械工程有限公司 一种可变位喷涂室
CN106000749B (zh) * 2016-07-22 2018-11-16 裕东（中山）机械工程有限公司 一种可变位喷涂室
US11845096B2 (en) 2020-12-18 2023-12-19 Exel Industries Robot, system and method for electrostatic powder coating

Also Published As

Publication number Publication date
DE10136453A1 (de) 2003-02-20
US20050115587A1 (en) 2005-06-02

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