EP1205256A2 - Ensemble de valves de changement de couleur et son procédé de commande - Google Patents

Ensemble de valves de changement de couleur et son procédé de commande Download PDF

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Publication number
EP1205256A2
EP1205256A2 EP01126211A EP01126211A EP1205256A2 EP 1205256 A2 EP1205256 A2 EP 1205256A2 EP 01126211 A EP01126211 A EP 01126211A EP 01126211 A EP01126211 A EP 01126211A EP 1205256 A2 EP1205256 A2 EP 1205256A2
Authority
EP
European Patent Office
Prior art keywords
valves
valve
valve arrangement
pneumatic
paint
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
EP01126211A
Other languages
German (de)
English (en)
Other versions
EP1205256A3 (fr
EP1205256B1 (fr
Inventor
Hans-Josef Dipl.-Ing. Vetters
Michael Dipl.-Ing. Baumann
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 EP1205256A2 publication Critical patent/EP1205256A2/fr
Publication of EP1205256A3 publication Critical patent/EP1205256A3/fr
Application granted granted Critical
Publication of EP1205256B1 publication Critical patent/EP1205256B1/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
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/149—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet characterised by colour change manifolds or valves therefor

Definitions

  • the invention relates to a color change valve arrangement for connection a number of paint lines for coating material selectable different colors with one application organ according to the preamble of claim 1 and a method for Control such an arrangement.
  • Enable color change valve arrangements or color changers for short in painting systems for coating workpieces such as Motor vehicle bodies during the painting operation a quick switch from one color to another and persist mainly from a number of controllable color valves that are distributed along a color channel common to all colors.
  • colors in block construction from individual modules (connection blocks, Terminal strips, control heads) formed, strung together can be, so that a variable, retrospectively number of connections can be enlarged or reduced can be realized for color lines.
  • the color valves are usually other, similarly constructed valves for flushing media such as thinner liquid and pulse air.
  • the known pneumatic control system is very complex because a compressed air hose from the pneumatic cabinet for each switching function must be moved to the color changer and in addition to each valve of the color changer is structurally and spatially separated external solenoid valve is required. Also revealed the control air hoses and the need for their and venting switching delays that are also different are long, because depending on the installation case (e.g. side and Roof machines) within a system different hose lengths and there are different switching times. short and precisely defined switching times include with newer washing programs important for color changers whose opening times the purge valves typically on the order of fractions of a second can lie (DE 199 51 956).
  • valve needle is already known from EP 0 979 964 A the color control valves of a color changer electromagnetically operate to shortest by direct electrical bus control Switching times without those required for pneumatic control To allow hoses.
  • direct actuation of the Valve needles require relatively strong electromagnets, which are not only bulky, but also a in With regard to the explosion protection conditions in coating systems have undesirably high electrical power consumption.
  • the object of the invention is a color changer and a method to specify its control, the management effort and the Switching time delays of pneumatically controlled color changers without avoid the need for undesirably strong electromagnets.
  • the invention makes a compact and reliable unit created that compared to conventional pneumatically controlled Color changers with much less installation and other expenses than before.
  • the Numerous control air hoses required so far for the color changer as well as the large external pneumatic cabinet including of its solenoid valves. Since the ventilation of Hose lines are omitted, the results are much faster Switching operations that are also precisely determined and by the installation are independent, so that exactly reproducible washing programs can be realized with short switching times.
  • the drawing shows schematically a color changer electronically controlled by a fieldbus system with pneumatic valves.
  • the color changer 1 consists in the manner known per se a modularly expandable or shrinkable group of strings Block units, each consisting of housing bodies 2 and therein for connecting the paint and flushing lines (not with the central color channel, e.g. screwed Valves 3 exist.
  • the valves 3 are of an electromagnetic valve pilot operated pneumatic valves. Suitable constructions for this are available to the specialist depending on the application.
  • the valves 3 can be pneumatic Basic unit according to FIG. 2 of EP 0 979 already mentioned 964 A included, in which a valve needle provided with a piston by compressed air against the force of a spring in an open position is pressed in which it shows the way for the color or flushing medium in the color channel of the color changer.
  • the compressed air is the control signal to open and close the color valve is in the Color changer described here the compressed air connection through a electromagnetic valve unit replaced to the pneumatic Base unit is attached and electrical connection between one under constant pressure Compressed air line 4 and the pneumatic base unit opens and closes.
  • the attached electromagnetic valve unit can be used constructively similar to the known pneumatic basic unit be built up and for example one like their needle Movable magnetic core included, on which there is a sealing seat. If the magnetic core is surrounded by an electrical one When the coil is tightened, the sealing seat opens and gives the path of the compressed air from line 4 into the pneumatic Basic unit free.
  • the pneumatic pilot control at P compressed air line connected to a central pilot air source 4 leads through the housing body 2 of the color changer 1 and is inside the color changer on all valves 3 connected.
  • other known or expedient constructions for an electrically controlled valve to open and close the pneumatic lines of the paint and Detergent valves are used.
  • the modular are also Housing units extending portions of the internal Data bus 5 connected to each other by plug contacts 9. The same applies to the corresponding sections of the power supply line 8 and the compressed air line 4.
  • the housing parts of the Color changer 1 consist of electrically conductive material, for example made of conductive plastic.

Landscapes

  • Spray Control Apparatus (AREA)
  • Coating Apparatus (AREA)
  • Nozzles (AREA)
  • Magnetically Actuated Valves (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Vehicle Body Suspensions (AREA)
EP01126211A 2000-11-14 2001-11-05 Ensemble de valves de changement de couleur et son procédé de commande Expired - Lifetime EP1205256B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10056259A DE10056259A1 (de) 2000-11-14 2000-11-14 Farbwechselventilanordnung und Verfahren zu ihrer Steuerung
DE10056259 2000-11-14

Publications (3)

Publication Number Publication Date
EP1205256A2 true EP1205256A2 (fr) 2002-05-15
EP1205256A3 EP1205256A3 (fr) 2004-12-08
EP1205256B1 EP1205256B1 (fr) 2008-03-05

Family

ID=7663166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01126211A Expired - Lifetime EP1205256B1 (fr) 2000-11-14 2001-11-05 Ensemble de valves de changement de couleur et son procédé de commande

Country Status (4)

Country Link
EP (1) EP1205256B1 (fr)
AT (1) ATE387967T1 (fr)
DE (2) DE10056259A1 (fr)
ES (1) ES2300299T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10142355A1 (de) 2001-08-30 2003-03-20 Duerr Systems Gmbh Beschichtungsanlage mit einem Regelkreis

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0979964A2 (fr) 1998-08-12 2000-02-16 Dürr Systems GmbH Ensemble de soupapes pour la commande de l'écoulement du matériau dans une installation de revêtement
DE19951956A1 (de) 1999-10-29 2001-06-13 Duerr Systems Gmbh Ventilanordnung und Verfahren zum Spülen eines Farbwechslers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI882260A7 (fi) * 1988-05-13 1989-11-14 Oy Saab Valmet Ab Värinvaihto- ja pesumenetelmä pinnoiteaineen, edullisesti maalin levityslaitetta varten ja menetelmässä käytetty laitteisto
EP0480080A1 (fr) * 1990-10-08 1992-04-15 Trinity Industrial Corporation Appareil de revêtement
DE4423643A1 (de) * 1994-07-06 1996-01-11 Ind Lackieranlagen Schmidt Gmb Einrichtung zum Lackieren von Gegenständen mit verschiedenen Farben

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0979964A2 (fr) 1998-08-12 2000-02-16 Dürr Systems GmbH Ensemble de soupapes pour la commande de l'écoulement du matériau dans une installation de revêtement
DE19951956A1 (de) 1999-10-29 2001-06-13 Duerr Systems Gmbh Ventilanordnung und Verfahren zum Spülen eines Farbwechslers

Also Published As

Publication number Publication date
ATE387967T1 (de) 2008-03-15
DE50113685D1 (de) 2008-04-17
DE10056259A1 (de) 2002-05-23
EP1205256A3 (fr) 2004-12-08
ES2300299T3 (es) 2008-06-16
EP1205256B1 (fr) 2008-03-05

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