EP0777534A1 - Dispositif de mise en peinture de pieces par pulverisation - Google Patents

Dispositif de mise en peinture de pieces par pulverisation

Info

Publication number
EP0777534A1
EP0777534A1 EP96917347A EP96917347A EP0777534A1 EP 0777534 A1 EP0777534 A1 EP 0777534A1 EP 96917347 A EP96917347 A EP 96917347A EP 96917347 A EP96917347 A EP 96917347A EP 0777534 A1 EP0777534 A1 EP 0777534A1
Authority
EP
European Patent Office
Prior art keywords
coating
spray
powder
paint
booths
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
EP96917347A
Other languages
German (de)
English (en)
Other versions
EP0777534B1 (fr
Inventor
Herbert Reiss
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.)
Tegometall International AG
Original Assignee
Tegometall International 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 Tegometall International AG filed Critical Tegometall International AG
Priority to SI9630029T priority Critical patent/SI0777534T1/xx
Publication of EP0777534A1 publication Critical patent/EP0777534A1/fr
Application granted granted Critical
Publication of EP0777534B1 publication Critical patent/EP0777534B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05B16/00—Spray booths
    • B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/46—Spray booths

Definitions

  • the invention relates to a device for spray coating workpieces with paint, which has at least two coating booths arranged along a conveying path of the workpieces and a spray device.
  • a spray coating device is particularly suitable for electrostatic powder coating.
  • the known coating systems therefore have a suction device in order to return the excess paint powder into the paint powder cycle.
  • color powder particles always stick to the coating booth walls, which ensure a color mixture and thus contamination when the color changes.
  • the coating booth In order to avoid this, the coating booth must be cleaned with every color change. This always results in costly downtimes in the coating system.
  • the object of the invention is therefore to provide an inexpensive device for spray coating workpieces, which enables a quick color change.
  • the at least two coating booths arranged along the conveying path of the workpieces are designed in two parts, the booth parts being separable from one another, so that the spray device can be moved between the coating booths.
  • the downtimes during the color change can be reduced considerably, since the spray device can be moved quickly and easily between the coating booths with the different colors due to the two-part construction of the coating booths.
  • the cleaning of the spraying device consisting of a spray gun arrangement can be carried out without problems by blowing it free with compressed air.
  • the cabin parts can be moved apart transversely to the conveying path of the workpieces.
  • the coating booth is thus easily accessible and can be cleaned quickly and effectively.
  • the coating booths are cylindrical. This leads to a further substantial reduction in cleaning times when changing colors, since corners and edges, from which paint deposits are very difficult to remove, are avoided by the cylindrical design of the interior walls of the cabin.
  • This advantageous embodiment of the interior walls of the cabin can also be used independently of the double cabin design according to the invention to improve the possibility of cleaning in conventional spray coating devices.
  • the spray device is movably arranged on a running rail arranged between the coating booths, an additional cleaning device for the spray device being provided on the running rail section.
  • an additional cleaning device for the spray device being provided on the running rail section.
  • a suction device is embedded in the center of the floor of the coating booth, the booth floor additionally being funnel-shaped and can be provided with a ventilated fluid plate.
  • the arrangement of the suction device in the cabin floor below the workpiece enables on the one hand an improvement in the application efficiency since the paint powder released by the spraying device is kept longer in the area surrounding the paint. Furthermore, this arrangement of the suction device can produce a coating booth with an extremely small footprint. the.
  • the additional funnel-shaped design of the cabin floor and the attachment of a ventilated fluid plate also enable effective suction of the excess paint powder during the coating process. Color powder deposits on the cabin walls are thus largely prevented, which considerably simplifies the cleaning of the coating booths.
  • the suction device described can also be used in an advantageous manner in the already known spray coating devices, regardless of the double cabin design according to the invention.
  • the spray device consists of at least two rows of spray guns arranged vertically one above the other, which are arranged opposite one another in the coating booth on both sides of the conveying path of the workpieces. This design of the spraying device enables a stable and largely uniform color powder cloud to be formed in the area of the paint, which leads to a significant improvement in the application efficiency.
  • a largely uniform application of the color powder on the paint is also in problem areas, such as Corners and edges guaranteed.
  • the arrangement in mutually opposite, vertically placed rows ensures a substantial reduction in operating costs, since the loss of color powder can be significantly reduced due to the formation of powder clouds.
  • fewer spray guns are required, which reduces both the acquisition costs and the maintenance costs.
  • This spray device can also be used advantageously in conventional coating devices independently of the spray coating device according to the invention with a double cabin.
  • two rows of spray guns arranged vertically one above the other are fitted in the coating booth on both sides of the conveying path, the distance between the rows of spray guns lying opposite one another being different.
  • This configuration of the spraying device has the advantage that problem areas of the paint can be coated due to the closely spaced rows of spray guns, while the larger spaced rows, which can also have special spray gun nozzles, can be used to cover the surface.
  • the spray device can also be coupled to a lifting device in order to achieve an optimal layer thickness distribution, in particular on smooth surfaces to be painted.
  • FIG. 1 shows a top view of the coating device according to the invention
  • FIG. 2 shows a view of the coating booth of the coating device according to the invention along the section line II in FIG. 1.
  • the spray coating device according to the invention shown in FIG. 1 has two coating booths 1 and 2 arranged along a conveyor section 5 on.
  • Each coating cabin consists of two essentially symmetrical cabin halves, which are arranged on both sides of the conveyor section 5.
  • the side walls of the coating booths are designed as cylindrical surfaces, the coating booths having an essentially circular base area in the closed state.
  • the cylindrical design of the interior of the coating booth facilitates the detachment of paint powder deposits, since corners and edges that are difficult to access are largely avoided.
  • the two cabin parts of the coating booths are along two runways arranged under the coating booth.
  • Each coating booth also has a paint powder storage container 9 and a paint powder metering device 10 connected to it.
  • the metering devices 10 each have connections to which the powder feed 11 connected to the spray device 8 can be detachably connected, as shown in the coating booth 1 in operation.
  • each coating booth there is a suction device 12 embedded in the booth floor, which is connected to a powder recovery system 13.
  • a suction device 12 embedded in the booth floor, which is connected to a powder recovery system 13.
  • the powder recovery device 13 is also connected to the powder storage container 9 in order to return the recovered paint powder to the paint powder cycle.
  • the powder recovery devices 13 coupled to the coating booths 1 and 2 can each be detachably coupled to an end filter system 14 located between the coating booths, as is shown in the coating booth 1 in operation.
  • the final filter system 14 is used to clean the exhaust air extracted from the coating booth.
  • a cleaning device 15 is additionally provided between the coating booths 1 and 2, with which any paint deposits Have the gene on the spray device 8 removed automatically, for example by means of granules.
  • the spray coating device has a
  • Control device 17 for fully automatic regulation of the entire coating process including color change.
  • the control device is connected to a fire suppression system 16 in order to suffocate fires in the colored powder.
  • FIG. 2 shows a cross section through the coating booth 1 which is in operation.
  • An opening 25 of the suction device 12 is embedded in the center of the booth floor directly below the workpiece to be painted.
  • the cabin floor is designed in a funnel shape with respect to this suction opening 25 in order to enable the excess paint powder which is deposited in the coating cabin to be suctioned off easily.
  • the cabin floor is provided with a fluid plate 24 operated by means of compressed air, the compressed air on the fluid plate generating a floating powder powder particle stream moving in the direction of opening 25 of the suction device 12.
  • the design of the paint powder suction device described enables an effective suction of the excess paint powder while largely avoiding deposits on the coating booth walls.
  • the spray device 8 for the paint powder has four rows of vertically guided spray guns 21, which are designed in particular as tribo guns, two rows always lying opposite one another in order to produce a stable and homogeneous paint powder cloud on the workpiece 18.
  • the distance between the first two rows of spray guns 21 is chosen to be smaller than the distance between the two second rows.
  • the rows of spray guns are each movably arranged on a stand 23 by means of a spray gun holding device 22.
  • the stands 23 are also connected to a lifting device 20 which ensures an oscillating lifting movement of the stands and thus of the rows of spray guns.
  • the oscillating movement of the spray device 8 ensures a uniform distribution of the layer thickness of the paint powder on the workpiece 18.
  • the paint powder supply of the spray guns 21 takes place vertically from above via the paint powder feed 11. This configuration of the paint powder feed prevents the formation of a paint powder column in the spray guns 21 when the coating booth is started up, which would occur from below due to the weight of the powder particles in the case of a paint powder feed.
  • Hanging egg carriages 6 are arranged along the conveying path 5 and have a suspension 19 for fastening the workpiece 18 to be painted.
  • the spray device 8 starts the spraying operation.
  • the paint powder particles fed from the paint powder storage container 9 via the powder metering device 10 and the powder feed 11 into the spray device 8 are electrically charged in the spray guns 21 and ejected via the nozzles of the spray guns.
  • the arrangement of vertical spray gun rows on both sides of the conveyor line creates a standing color powder cloud on the workpiece, which ensures high application efficiency.
  • the use of several differently disputed rows of spray guns with different nozzle sets also enables a uniform coating of both large workpiece parts and corners and edges.
  • first of all the rows of spray guns which generate a broadly diversified spray jet, are used to cover the workpiece to be painted over a large area and then to cover problem areas by means of the spray gun rows which are more closely together with more directed spray jets .
  • the rows of spray guns can be moved along the stands 23 by means of the spray gun holders 22 in order to be able to completely coat even wide workpieces.
  • the workpiece is, for example, at a belt speed of 6 m / min. passed the rows of spray guns.
  • the excess paint powder which does not adhere to the workpiece, is sucked down by means of the suction device 12 arranged below the workpiece.
  • the compressed air-operated fluid plate 24 located on the cabin floor generates a floating paint powder particle flow in the direction of the opening 25 of the suction device 12, through which the paint powder together with the exhaust air is fed into the powder recovery device 13.
  • the color powder is filtered out in the powder recovery device 13 and returned to the color powder circuit.
  • suction powers of up to 8,000 m 3 / h can be generated. If a color change from a first to a second color is provided in the spray coating device, the color powder supply for the spray device 8 is interrupted.
  • the powder feed 11 and the spraying device 8 are then blown free of color deposits of the first color by means of pulsating compressed air. Subsequently, the powder feed 11 from the powder metering device 10 for the The first color is uncoupled and the two parts of the coating device are moved apart. Then the spraying device is moved along the running rail into the coating booth loaded with the second paint. If an extreme color change is provided, for example from dark brown to white, an additional cleaning step of the spray device 8 is carried out in the cleaning device 15 arranged on the running rail.
  • the spray device 8 After the spray device 8 has been moved into the coating booth for the second color, the latter is closed and the powder feed 11 is coupled to the powder metering device 10 for the second color.
  • the color change process like the spraying process, can be controlled automatically by means of the control device 17.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Spray Control Apparatus (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Ce dispositif de mise en peinture de pièces par pulvérisation comprend au moins deux cabines de mise en peinture (1, 2) situées le long de la voie de transport (5) des pièces et un pulvérisateur (8). Les cabines de mise en peinture (1, 2) sont constituées de deux parties qui peuvent être séparées l'une de l'autre de sorte que le pulvérisateur (8) puisse être placé entre les cabines de pulvérisation.
EP96917347A 1995-06-27 1996-06-14 Dispositif de mise en peinture de pieces par pulverisation Expired - Lifetime EP0777534B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630029T SI0777534T1 (en) 1995-06-27 1996-06-14 Workpiece spray-painting device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19523319A DE19523319A1 (de) 1995-06-27 1995-06-27 Vorrichtung zur Sprühbeschichtung von Werkstücken mit Farbe
DE19523319 1995-06-27
PCT/DE1996/001055 WO1997001395A1 (fr) 1995-06-27 1996-06-14 Dispositif de mise en peinture de pieces par pulverisation

Publications (2)

Publication Number Publication Date
EP0777534A1 true EP0777534A1 (fr) 1997-06-11
EP0777534B1 EP0777534B1 (fr) 1998-11-25

Family

ID=7765360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96917347A Expired - Lifetime EP0777534B1 (fr) 1995-06-27 1996-06-14 Dispositif de mise en peinture de pieces par pulverisation

Country Status (24)

Country Link
US (1) US5861062A (fr)
EP (1) EP0777534B1 (fr)
JP (1) JP3238413B2 (fr)
KR (1) KR100361416B1 (fr)
AR (1) AR002595A1 (fr)
AT (1) ATE173656T1 (fr)
AU (1) AU695037B2 (fr)
BR (1) BR9606499A (fr)
CA (1) CA2198454A1 (fr)
CZ (1) CZ286956B6 (fr)
DE (2) DE19523319A1 (fr)
DK (1) DK0777534T3 (fr)
ES (1) ES2125728T3 (fr)
HU (1) HU220812B1 (fr)
MX (1) MX9701326A (fr)
NO (1) NO970765L (fr)
PL (1) PL184564B1 (fr)
RO (1) RO119348B1 (fr)
RU (1) RU2146564C1 (fr)
SI (1) SI0777534T1 (fr)
SK (1) SK281555B6 (fr)
TR (1) TR199700120T1 (fr)
WO (1) WO1997001395A1 (fr)
ZA (1) ZA965415B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19616220A1 (de) * 1996-04-23 1997-10-30 Erich Kraemer Pulverbeschichtungskabine
DE19722773C1 (de) * 1997-06-02 1998-11-19 Manfred Goettling Pulverbeschichtungskabine mit drehbarem Kabinenwandträger
US6833031B2 (en) * 2000-03-21 2004-12-21 Wavezero, Inc. Method and device for coating a substrate
US6914805B2 (en) * 2002-08-21 2005-07-05 Micron Technology, Inc. Method for building a magnetic keeper or flux concentrator used for writing magnetic bits on a MRAM device
DE20305947U1 (de) * 2003-04-11 2003-06-18 J. Wagner AG, Altstätten Vorrichtung zur Reinigung einer Pulverbeschichtungskabine und Pulverbeschichtungskabine mit Reinigungsvorrichtung
WO2005049221A1 (fr) * 2003-11-20 2005-06-02 Nihon Parkerizing Co., Ltd. Systeme de poudrage
DE102008004960A1 (de) * 2008-01-18 2009-07-23 Thermotec Gmbh Verfahren und Vorrichtung zum elektrostatischen Beschichten
DE102010032143A1 (de) * 2010-07-24 2012-01-26 Eisenmann Ag Anlage zur Oberflächenbehandlung von Gegenständen
EP2641665A1 (fr) * 2012-03-19 2013-09-25 Deceuninck NV Procédé en plusieurs étapes pour éléments de construction entièrement colorés
CN103801488B (zh) * 2014-02-17 2017-02-01 中山市君禾机电设备有限公司 一种应用于粉末喷涂线的立式圆形喷房
CN109876959A (zh) * 2019-02-25 2019-06-14 韶关旭日国际有限公司 一种喷涂生产线
DE102022110006A1 (de) 2022-04-26 2023-10-26 Meeh Pulverbeschichtungs- und Staubfilteranlagen GmbH Sprühanlage
IT202200026541A1 (it) * 2022-12-22 2024-06-22 Trasmetal S P A Impianto di verniciatura di profilati
BE1031212B1 (nl) * 2022-12-29 2024-07-29 Alinel Bv Werkwijze voor het poederlakken van geëxtrudeerde profielen
BE1031214B1 (nl) * 2022-12-29 2024-07-29 Ursus Bv Een lakstraat voor het poederlakken van gevouwen of geëxtrudeerde profielen

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FR2442080A1 (fr) * 1978-11-21 1980-06-20 Europ Equip Menager Installation de poudrage electrostatique d'objets
DE3014114C2 (de) * 1980-04-12 1982-04-29 Gema AG Apparatebau, 9015 St. Gallen Einrichtung zum automatischen Beschichten von Gegenständen mit einer Spritzvorrichtung
DE3131565C2 (de) * 1981-08-10 1984-12-13 Ransburg-Gema AG, St.Gallen Kabine zum Sprühbeschichten von Gegenständen mit Pulver
US4640220A (en) * 1984-06-06 1987-02-03 Electropainting Sales Pty. Ltd. Paint booth assembly
CH668008A5 (de) * 1985-04-30 1988-11-30 H U Ramseier Fa Elektrostatische pulverbeschichtungsanlage.
DE3602172C1 (de) * 1986-01-22 1986-12-11 Mannesmann AG, 40213 Düsseldorf Vorrichtung zum Bespruehen von Teilen
DE3640699A1 (de) * 1986-11-28 1988-06-09 Gema Ransburg Ag Kabine zum spruehbeschichten von objekten
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US4932316A (en) * 1989-04-26 1990-06-12 Flakt, Inc. Paint spray booth with movable inner walls
DE9017994U1 (de) * 1990-03-13 1993-07-29 Gronbach, Wilfried, 83512 Wasserburg Pulverbeschichtungsanlage
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Also Published As

Publication number Publication date
CZ286956B6 (en) 2000-08-16
DE59600863D1 (de) 1999-01-07
ES2125728T3 (es) 1999-03-01
SI0777534T1 (en) 1999-02-28
JP3238413B2 (ja) 2001-12-17
CA2198454A1 (fr) 1997-01-16
AR002595A1 (es) 1998-03-25
HU220812B1 (hu) 2002-05-28
SK23097A3 (en) 1997-08-06
NO970765D0 (no) 1997-02-19
NO970765L (no) 1997-02-19
JPH10507685A (ja) 1998-07-28
PL184564B1 (pl) 2002-11-29
DE19523319A1 (de) 1997-01-09
PL318881A1 (en) 1997-07-07
HUP9702153A3 (en) 2000-07-28
CZ42697A3 (en) 1997-08-13
RO119348B1 (ro) 2004-08-30
TR199700120T1 (tr) 1997-08-21
DK0777534T3 (da) 1999-08-09
WO1997001395A1 (fr) 1997-01-16
AU695037B2 (en) 1998-08-06
EP0777534B1 (fr) 1998-11-25
MX9701326A (es) 1998-02-28
RU2146564C1 (ru) 2000-03-20
AU5996396A (en) 1997-01-30
ZA965415B (en) 1997-02-11
BR9606499A (pt) 1997-12-23
HUP9702153A2 (hu) 1999-05-28
KR100361416B1 (ko) 2003-02-14
ATE173656T1 (de) 1998-12-15
SK281555B6 (sk) 2001-05-10
US5861062A (en) 1999-01-19

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