EP0369478A1 - Enceinte pour les différents postes de traitement d'objets lors de leur revêtement électrostatique par de la poudre - Google Patents

Enceinte pour les différents postes de traitement d'objets lors de leur revêtement électrostatique par de la poudre Download PDF

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Publication number
EP0369478A1
EP0369478A1 EP89121341A EP89121341A EP0369478A1 EP 0369478 A1 EP0369478 A1 EP 0369478A1 EP 89121341 A EP89121341 A EP 89121341A EP 89121341 A EP89121341 A EP 89121341A EP 0369478 A1 EP0369478 A1 EP 0369478A1
Authority
EP
European Patent Office
Prior art keywords
chamber
treatment
treatment unit
chamber according
movable
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
EP89121341A
Other languages
German (de)
English (en)
Other versions
EP0369478B1 (fr
Inventor
Adolf Berkmann
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.)
COLUMBUS SYSTEM PATENT AG
Original Assignee
COLUMBUS SYSTEM PATENT 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 COLUMBUS SYSTEM PATENT AG filed Critical COLUMBUS SYSTEM PATENT AG
Publication of EP0369478A1 publication Critical patent/EP0369478A1/fr
Application granted granted Critical
Publication of EP0369478B1 publication Critical patent/EP0369478B1/fr
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
    • 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
    • B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth

Definitions

  • the invention relates to a chamber for various treatment stations of an object in the electrostatic powder coating of objects.
  • the object In order to be able to coat an object with powder coating, it has to go through various treatment stations. First, the object must be degreased, cleaned, phosphated and rinsed, whereupon it is dried in a further treatment station before it can be introduced into a treatment station in which, with the aid of an electrostatic field, powder coating can be applied by means of spray nozzles, the excess powder being suctioned off and is reused. The object then reaches a further treatment station, in which the uniformly adhering powder coating is gelled, cured and dried by means of infrared radiators.
  • tunnel-shaped chambers are known into which the object is introduced and brought out again after the treatment, for which purpose the chamber has openings at the front.
  • a disadvantage of these known chambers is the fact that they are rigid in themselves, so that they are only suitable for objects up to a certain size.
  • the object of the invention is to provide a chamber which can be adapted to different dimensions of the objects.
  • This object is achieved on the basis of a chamber according to the preamble of claim 1 in that the chamber is divided in the longitudinal direction into two parts which can be displaced relative to one another to adapt to different objects.
  • the chamber size can be adjusted to the objects to be coated, which also has a favorable effect on the respective treatment process. Because the respective treatment unit can be moved within the working area of the chamber, very long objects, up to a length corresponding to the length of the working area, can be completely treated before they leave the chamber.
  • the basic design of the chamber namely the divided design and thus the adaptability to objects of different sizes and the arrangement of the treatment unit as a mobile unit, are the same regardless of the use of the chamber at the individual stations. Only the individual treatment units that are adapted to the respective treatment process are different.
  • the movable treatment unit on a movable carriage has at least one spray nozzle, which can optionally be connected to a source of cleaning or treatment liquid and a source of rinsing liquid, and a collecting channel is tiltably mounted on the bottom of the chamber, which collects the collected Depending on the tilting position, liquid either flows into a container for treatment liquid or a container for rinsing liquid.
  • the objects to be coated are cleaned, degreased, phosphated and then rinsed off, so that they are then dried in the next treatment station can.
  • the movable treatment unit comprises at least one unit equipped with infrared radiators and reflectors, which extends approximately over the entire inner circumference along a chamber section.
  • the object to be treated is subjected to heat treatment from all sides.
  • a chamber designed in this way is also used for curing the powder coating applied to the object.
  • air blowing nozzles are provided on the movable unit in addition to the infrared radiators in order to accelerate the drying process.
  • the movable treatment unit comprises at least one spray nozzle for the powder and one suction device opposite the spray nozzle for coating the pretreated article.
  • the chamber has an opening in its upper region which is used for inserting and removing the object to be treated and this opening has a length which corresponds at least to the length of the object to be treated, this can be particularly advantageous long objects are brought into the respective chamber from above and removed again.
  • This configuration enables the chambers to be set up with their longitudinal direction transverse to the transport direction of the objects, as a result of which a significantly smaller space requirement is required compared to an arrangement of the individual chambers in their longitudinal direction behind one another. This arrangement then leads to a cyclical conveying of the objects from one chamber to another. This arrangement is particularly suitable for very long objects.
  • the chamber can have inlet and outlet openings for the objects to be treated at the ends in order to pass them through the chamber in the longitudinal direction.
  • a tunnel-shaped chamber generally designated 1
  • the respective chamber has an essentially rectangular cross section with rounded transitions 5 and 6 between the side walls 7 and the ceiling area 8 on the one hand and between the side walls 7 and the floor area 9 on the other hand.
  • an opening 10 which extends in the longitudinal direction and which serves for the insertion and removal of elongated objects, for example pipes 11.
  • the displaceable part 3 of the chamber 1 has in its bottom region 9 a pivotably mounted cover plate 12, which rests on the bottom of the fixed chamber part 2 and moves when the Chamber part 3 can adapt to the sloping floor of the fixed chamber part.
  • This basic chamber structure is the same for all chambers, regardless of which treatment station they are assigned to.
  • the chamber is divided into a treatment area 13 and a preparation area 14 provided at the end of the chamber, in which the individual treatment units to be described in more detail can be moved if the chamber is to be cleaned, for example.
  • a transport system for the objects to be treated is provided, the transport direction being transverse to the longitudinal direction of the chamber.
  • the individual chambers are set up parallel to one another and the articles to be treated are transported in cycles from one chamber to the other, the articles being lowered into the chamber from above through the opening 11 and removed again after the treatment.
  • the objects can also be transported in the longitudinal direction through the chambers, since the ends of the chambers are open. This is useful for small opponents.
  • the different treatment units within the chambers which are necessary to pretreat, dry and coat the article and then harden the applied layer are described below.
  • each treatment unit for each inside the chamber 1 on each side wall
  • Pretreatment ie cleaning, degreasing and phosphating and rinsing off the object to be coated, are provided, these treatment units each being designated 16 b.
  • Each treatment unit can be moved on rails 17 in the longitudinal direction of the chamber and has pipelines 18 and spray nozzles 19.
  • Treatment liquid for cleaning, degreasing and phosphating the objects or rinsing liquid are sprayed out of these spray nozzles in order to rinse off the object after the treatment.
  • a tiltable channel 20 which, depending on its tilting position, firstly directs the treatment liquid into a collecting container and, in the other tilting position, the washing liquid into another collecting container, which are not shown in the drawing. So that the liquid can reach the tipping channel 20 in spite of the bottom plate 12, the bottom plate 12 rests on ramps 21 which are arranged on the bottom of the fixed part, so that a certain gap remains between the bottom of the fixed part and the bottom plate.
  • the chamber 1 is designed as a drying station.
  • a treatment unit can be moved within the chamber on each side wall along the rails 12 and has infrared radiators 22 and air-blowing nozzles 23 in order to dry the object coming from the chamber according to FIG. 1.
  • Fig. 3 shows the chamber as a coating station.
  • a unit is arranged on each side wall along the rails 12, the spray nozzles 24 and one Has suction device 25.
  • spray nozzles and suction device are arranged in mirror image, so that the suction nozzles each have a suction device directly opposite.
  • This chamber is also in the transition area 5, ie in the transition between the side wall and the ceiling area, provided with a spray device 26, which consists of a water pipe and spray nozzles, which are used to rinse off the entire inner wall surfaces, which is necessary for each color change to the rinse off powder particles adhering to the wall, which get to the wall despite the suction device.
  • the chamber serves as a curing station for the applied lacquer layer.
  • movable treatment units 27 are arranged on both side walls, which have infrared radiators 28, in order to bring the applied powder layer to gel by the action of heat and to activate the hardener contained in the powder.

Landscapes

  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
EP89121341A 1988-11-17 1989-11-17 Enceinte pour les différents postes de traitement d'objets lors de leur revêtement électrostatique par de la poudre Expired - Lifetime EP0369478B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3838926A DE3838926A1 (de) 1988-11-17 1988-11-17 Kammer fuer die verschiedenen behandlungsstationen eines gegenstandes beim elektrostatischen pulverbeschichten
DE3838926 1988-11-17

Publications (2)

Publication Number Publication Date
EP0369478A1 true EP0369478A1 (fr) 1990-05-23
EP0369478B1 EP0369478B1 (fr) 1993-08-11

Family

ID=6367365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89121341A Expired - Lifetime EP0369478B1 (fr) 1988-11-17 1989-11-17 Enceinte pour les différents postes de traitement d'objets lors de leur revêtement électrostatique par de la poudre

Country Status (3)

Country Link
EP (1) EP0369478B1 (fr)
DE (1) DE3838926A1 (fr)
DK (1) DK575089A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014509A1 (fr) * 1990-03-19 1991-10-03 Eric Von Gertten Ab Dispositif servant a peindre au pistolet des objets ou a traiter ceux-ci de maniere semblable
FR2687082A1 (fr) * 1992-02-11 1993-08-13 Sitonet Sa Tunnel de traitement de surface et son procede de realisation.
FR2698292A1 (fr) * 1992-11-20 1994-05-27 Trevisan Ferdinando Installation de peinture à poudre munie d'une cabine à section variable.
WO1997001395A1 (fr) * 1995-06-27 1997-01-16 Tegometall (International) Ag Dispositif de mise en peinture de pieces par pulverisation
WO1997035669A1 (fr) * 1996-03-26 1997-10-02 Paint & Powder Systems Limited Cabine de pulverisation
FR2849397A1 (fr) * 2002-12-31 2004-07-02 Laplace Ets Dispositif pour le traitement de surface par projection d'un fluide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3940085A1 (de) * 1989-12-04 1991-06-06 Columbus System Patent Ag Vorrichtung fuer das elektrostatische pulverbeschichten von gegenstaenden

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640699A1 (de) * 1986-11-28 1988-06-09 Gema Ransburg Ag Kabine zum spruehbeschichten von objekten

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH611184A5 (fr) * 1975-09-29 1979-05-31 Gema Ag
GB2091858B (en) * 1980-12-11 1984-09-26 Infraroedteknik Ab Surface treatment of objects
DE8314662U1 (de) * 1983-05-18 1986-05-28 Becker, Martin, 3108 Winsen Einrichtung zum Beschichten von Gegenständen
CH668008A5 (de) * 1985-04-30 1988-11-30 H U Ramseier Fa Elektrostatische pulverbeschichtungsanlage.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640699A1 (de) * 1986-11-28 1988-06-09 Gema Ransburg Ag Kabine zum spruehbeschichten von objekten

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991014509A1 (fr) * 1990-03-19 1991-10-03 Eric Von Gertten Ab Dispositif servant a peindre au pistolet des objets ou a traiter ceux-ci de maniere semblable
FR2687082A1 (fr) * 1992-02-11 1993-08-13 Sitonet Sa Tunnel de traitement de surface et son procede de realisation.
FR2698292A1 (fr) * 1992-11-20 1994-05-27 Trevisan Ferdinando Installation de peinture à poudre munie d'une cabine à section variable.
GB2272851A (en) * 1992-11-20 1994-06-01 Ferdinando Trevisan Powdered-paint spraying plant with variable-sectionbooth
US5421885A (en) * 1992-11-20 1995-06-06 Trevisan; Ferdinando Powdered-paint spraying plant with variable-section booth
GB2272851B (en) * 1992-11-20 1996-04-10 Ferdinando Trevisan Powdered-paint spraying plant with variable-section booth
ES2108598A1 (es) * 1992-11-20 1997-12-16 Ferdinando Trevisan Instalacion de pintura con polvos con cabina de seccion variable.
WO1997001395A1 (fr) * 1995-06-27 1997-01-16 Tegometall (International) Ag Dispositif de mise en peinture de pieces par pulverisation
AU695037B2 (en) * 1995-06-27 1998-08-06 Tegometall (International) Ag Workpiece spray-painting device
RU2146564C1 (ru) * 1995-06-27 2000-03-20 Тегометалл (Интернэшнл) АГ Устройство для покрытия обрабатываемых предметов краской путем напыления
WO1997035669A1 (fr) * 1996-03-26 1997-10-02 Paint & Powder Systems Limited Cabine de pulverisation
FR2849397A1 (fr) * 2002-12-31 2004-07-02 Laplace Ets Dispositif pour le traitement de surface par projection d'un fluide

Also Published As

Publication number Publication date
DK575089D0 (da) 1989-11-16
DE3838926A1 (de) 1990-05-23
EP0369478B1 (fr) 1993-08-11
DK575089A (da) 1990-05-18

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