EP1108475B1 - Installation de peinture - Google Patents

Installation de peinture Download PDF

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Publication number
EP1108475B1
EP1108475B1 EP00127233A EP00127233A EP1108475B1 EP 1108475 B1 EP1108475 B1 EP 1108475B1 EP 00127233 A EP00127233 A EP 00127233A EP 00127233 A EP00127233 A EP 00127233A EP 1108475 B1 EP1108475 B1 EP 1108475B1
Authority
EP
European Patent Office
Prior art keywords
conduit section
paint
painting apparatus
scraper
painting
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.)
Expired - Lifetime
Application number
EP00127233A
Other languages
German (de)
English (en)
Other versions
EP1108475A2 (fr
EP1108475A3 (fr
Inventor
Miachael Dipl.-Ing. Baumann
Rolf Schneider
Kurt Dipl.-Ing. Vetter
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 EP1108475A2 publication Critical patent/EP1108475A2/fr
Publication of EP1108475A3 publication Critical patent/EP1108475A3/fr
Application granted granted Critical
Publication of EP1108475B1 publication Critical patent/EP1108475B1/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
    • B05B12/1481—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 comprising pigs, i.e. movable elements sealingly received in supply pipes, for separating different fluids, e.g. liquid coating materials from solvent or air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1616—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material
    • B05B5/1625—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom

Definitions

  • the invention relates to a painting device with a Paint container and a spray device, the Paint container and the spray device for Applying paint to an object to be painted, in particular a motor vehicle body, compared to the Object can be brought to electrical potential and by means of an electrostatic separator against one Paint supply side is electrostatically isolable.
  • Such electrostatic painting devices are e.g. from US 4 921 169 known.
  • To almost the entire amount of paint on the to be able to apply the painting object Spray device and one arranged in front Paint container on the painting device High voltage in the order of more than 50 kV compared to the paint to be kept at earth potential Brought object. Because of the resulting electric field, almost the entire amount of paint is applied applied the object to be painted and the Paint loss minimized accordingly.
  • the present invention is based on the object electrostatic decoupling or connection of the Feed side of the painting device with the high voltage bringable components, which the paint container and comprise the spray device, simpler, more user-friendly and less susceptible to faults and thus to make it more cost-effective to operate.
  • the electrostatic separation device an electrical insulating on the feed side of the paint container provided line section, which also the paint supply serves in the paint receptacle, and one inside the Line section includes reciprocating pig, which when moving through the pipe section thereof inner surface of electrically conductive liquid freed.
  • Pig bodies are known per se; at least they are like that Resiliently trained to be minimal Excessively insertable in a pipe means and in substantially resilient elastic against the inside of the Line means are applied and still movable are. If flexible ducting means for example made of plastic materials Hoses are used, so can also in essential unyielding pig bodies are used. The use of pig bodies in painting facilities however, was only used for cleaning purposes.
  • a pig in conjunction with one from an electrical insulating material formed a line section electrostatic separator can be formed at which can only be done by moving the pig through the Line section an electrostatic insulation at a High voltage painting device can be achieved without that mechanical separation of components of the Painting equipment is required.
  • By moving through of the pig through the line section becomes its interior Surface as if by a lip or squeegee from any electrically conductive liquid (Coating material, detergent) and it can high-voltage insulation can thereby be achieved.
  • the invention is not electrically or in the essential non-conductive voltage insulation over the Length of pigged line section reached. This includes it is understood that when a voltage of 100 kV over a length of the line section of approx. 300 mm Current flow less than 50 ⁇ A, preferably less than 30 ⁇ A.
  • the line section is at least 100 mm, preferably of at least 200 mm.
  • the Paint receptacle and the spray or Atomizing device compared to that to be painted Object to an electrical potential above 50 kV, preferably above 70 kV, in particular up to 100 brought kV.
  • Line section runs obliquely to the horizontal, but is preferably arranged substantially vertically.
  • the line section is preferably made of one high-voltage resistant plastic tubing or from a break-proof high-strength glass tube educated.
  • the line section which a Insulating section forms and which may subsequent receiving sections for the newt and the The pig itself is cleaned of coating material, in particular, the detergent can be a solvent for the Include coating material.
  • the pig through any but electrically insulating push or Traction means is moved through the line section, in particular, a mechanically acting traction means in Form of a nylon thread or the like can be used. It would also be conceivable to use a vacuum generating means Use the pig to move back and forth. As in contrast advantageous, easy to use and light But it turns out to be manageable if a fluid Displacement medium, preferably compressed air, is used and on one and / or other side of the Line section a feed connection for the Displacement medium is provided, which is used as a pushing agent for the newt.
  • a fluid Displacement medium preferably compressed air
  • a return side of this sprayer assigned flushing device can on the corresponding way according to the invention a piggable Include line section as an insulating section.
  • FIG. 1 shows a schematic representation of a Paint shop.
  • a color changer 2 is not with one ring system shown, which a variety of includes paint-carrying lines, connected.
  • a color pressure regulator 4 In connection to the color changer 2 is a color pressure regulator 4 and one Quantity metering device 6 is provided.
  • Quantity metering device 6 To the Quantity metering device 6 is included overall designated by the reference numeral 8 and closer to descriptive electrostatic separator 8, which a paint supply side 10 and one Paint receptacle 12 connects or in the paint shop electrostatically separates from each other.
  • the Paint receptacle 12 serves as an intermediate reservoir for Coating material, which has a line leading away from the bottom of the paint receptacle 12 14 with a further metering device 16 of a spray or atomization device 18 of the painting system becomes. In the case shown, it is a Bell-type sprayer 18.
  • the paint receptacle 12th generates a compressed air cushion 20 under the admission of compressed air and the coating material via line 14 and the Quantity metering device 16 by the spray device 18 atomized and onto the object to be coated applied.
  • the high voltage is turned off first, and then an electrical connection is made through the Separating device 8 with the feed side 10 again produced.
  • the pig 24 is switched on before the start the filling process from its first upper end position in moved its second lower end position 34, and the The paint container is then specified with a Paint quantity filled. Then the pig 24 is by means of regulated compressed air back to the first upper end position emotional.
  • the line section 22 existing amount of paint losslessly into the paint supply side 10 pushed back. This also makes the inside of the Line section 22 cleaned and a High-voltage insulation using the double arrow 26 designated route reached.
  • the following Painting process can begin.

Claims (11)

  1. Installation de peinture avec un réservoir de peinture (12) et un dispositif de pulvérisation (18), dans laquelle, pour appliquer une peinture à un objet à peindre, en particulier une carrosserie de véhicule automobile, le réservoir de peinture (12) et le dispositif de pulvérisation (18) peuvent être amenés à un potentiel électrique par rapport à l'objet, et isolés de façon électrostatique au moyen d'un dispositif de séparation électrostatique (8) par rapport à un côté d'amenée de peinture (10), caractérisée en ce que le dispositif de séparation électrostatique (8) comprend un tronçon de canalisation (22) électriquement isolant, prévu du côté amenée (10) du réservoir de peinture (12) et servant également à amener la peinture dans le réservoir de peinture (12), et un écouvillon (24) à mouvement alternatif qui, en traversant le tronçon de canalisation (22), libère la surface intérieure de celui-ci d'un liquide électroconducteur.
  2. Installation de peinture selon la revendication 1, caractérisée en ce que le tronçon de canalisation (22) présente une longueur d'au moins 100 mm.
  3. Installation de peinture selon la revendication 1 ou 2, caractérisée en ce que le tronçon de canalisation (22) est fabriqué en matière plastique pour tuyaux souples, résistant aux hautes tensions, ou formé par un tuyau de verre incassable, à haute rigidité.
  4. Installation de peinture selon la revendication 1, 2 ou 3, caractérisée en ce que le potentiel électrique se situe au-dessus de 50 kV, de préférence au-dessus de 70 kV, en particulier entre 70 et 100 kV.
  5. Installation de peinture selon l'une quelconque des revendications précédentes, caractérisée en ce que le tronçon de canalisation (22) est disposé de façon oblique par rapport à l'horizontale, de préférence de façon substantiellement verticale.
  6. Installation de peinture selon l'une quelconque des revendications précédentes, caractérisée en ce que l'écouvillon (24) présente au moins un bourrelet ou rebord (58) servant de moyens d'étanchéité ou d'enlèvement et pouvant être appliqué sous tension contre la surface intérieure du tronçon de canalisation.
  7. Installation de peinture selon l'une quelconque des revendications précédentes, caractérisée en ce que des deux côtés du tronçon de canalisation (22), un raccord d'amenée ou d'évacuation de produit de rinçage (30, 32) est prévu.
  8. Installation de peinture selon l'une quelconque des revendications précédentes, caractérisée en ce que d'un côté et/ou de l'autre du tronçon de canalisation (22), un raccord d'amenée (26, 28) est prévu pour un milieu de déplacement destiné à faire passer l'écouvillon (24) à travers le tronçon de canalisation (22).
  9. Installation de peinture selon l'une quelconque des revendications précédentes, caractérisée en ce que le milieu de déplacement est gazeux.
  10. Installation de peinture selon l'une quelconque des revendications précédentes, caractérisée par un dispositif de rinçage (36) qui est affecté au dispositif de pulvérisation (18) et présente un dispositif de séparation électrostatique supplémentaire avec un tronçon de canalisation électriquement isolant (46) entre un raccord d'amenée de produit de rinçage (38) et le dispositif de pulvérisation (18) et un écouvillon (48) à mouvement alternatif à l'intérieur du tronçon de canalisation (46) qui, lorsqu'il est traverse le tronçon de canalisation (46), libère la surface intérieure de celui-ci d'un liquide électroconducteur.
  11. Mise en oeuvre d'un écouvillon mobile à travers un tronçon de canalisation pour la séparation électrostatique de deux parties d'installation, par exemple d'une installation de peinture, en ce que l'écouvillon est amené à traverser le tronçon de canalisation et la surface intérieure du tronçon de canalisation est ainsi libérée d'un liquide électroconducteur.
EP00127233A 1999-12-18 2000-12-15 Installation de peinture Expired - Lifetime EP1108475B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19961271A DE19961271A1 (de) 1999-12-18 1999-12-18 Lackiereinrichtung
DE19961271 1999-12-18

Publications (3)

Publication Number Publication Date
EP1108475A2 EP1108475A2 (fr) 2001-06-20
EP1108475A3 EP1108475A3 (fr) 2003-06-11
EP1108475B1 true EP1108475B1 (fr) 2004-08-18

Family

ID=7933292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00127233A Expired - Lifetime EP1108475B1 (fr) 1999-12-18 2000-12-15 Installation de peinture

Country Status (4)

Country Link
EP (1) EP1108475B1 (fr)
AT (1) ATE273757T1 (fr)
DE (2) DE19961271A1 (fr)
ES (1) ES2225007T3 (fr)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10033986A1 (de) 2000-07-13 2002-01-24 Duerr Systems Gmbh Verfahren zur Verwendung eines Molches in einer Beschichtungsanlage und Molch hierfür
DE10059041C2 (de) * 2000-11-28 2002-11-14 Lactec Ges Fuer Moderne Lackte Verfahren und Vorrichtung zum Fördern von elektrisch leitfähigen Lacken zwischen unterschiedlichen Spannungspotenzialen
DE10063234C1 (de) * 2000-12-19 2002-07-04 Duerr Systems Gmbh Schlauchsystem mit einem molchbaren Schlauch
DE10115472A1 (de) 2001-03-29 2002-10-10 Duerr Systems Gmbh Ventileinheit für eine elektrostatische Beschichtungsanlage
DE10115463A1 (de) 2001-03-29 2002-10-02 Duerr Systems Gmbh Zerstäuber für eine Beschichtungsanlage und Verfahren zu seiner Materialversorgung
DE10115467A1 (de) 2001-03-29 2002-10-02 Duerr Systems Gmbh Werkzeugwechselsystem für eine Maschine
DE10115470A1 (de) 2001-03-29 2002-10-10 Duerr Systems Gmbh Beschichtungsanlage mit einer Zerstäuberwechselstation
DE10157966A1 (de) * 2001-11-27 2003-06-05 Duerr Systems Gmbh Verfahren und Versorgungssystem zur dosierten Materialversorgung einer Beschichtungsvorrichtung
DE10202711A1 (de) 2002-01-24 2003-07-31 Duerr Systems Gmbh Zerstäuber für die elektrostatische Serienbeschichtung von Werkstücken
WO2003095107A1 (fr) * 2002-05-07 2003-11-20 Behr Systems, Inc. Procede et appareil de distribution et d'application d'une peinture electriquement conductrice
DE10231421A1 (de) 2002-07-11 2004-01-22 Dürr Systems GmbH Verfahren und System zur Versorgung eines Pulverbeschichtungsgerätes
DE10233198A1 (de) 2002-07-22 2004-02-05 Dürr Systems GmbH Rotationszerstäuber
DE10239516A1 (de) 2002-08-28 2004-03-18 Dürr Systems GmbH Schlauch für die elektrostatische Beschichtung von Werkstücken
ES2299650T3 (es) 2002-08-15 2008-06-01 Durr Systems Gmbh Tubo flexible limpiable por rascado para el revestimiento electrostatico de piezas.
DE10239517A1 (de) 2002-08-28 2004-03-11 Dürr Systems GmbH Beschichtungseinrichtung mit einem Rotationszerstäuber und Verfahren zum Steuern ihres Betriebes
DE10240072B4 (de) * 2002-08-30 2005-11-24 Dürr Systems GmbH Molch zur Förderung eines Beschichtungsmaterials und Verfahren zu seiner Herstellung
DE10240451A1 (de) 2002-09-02 2004-03-11 Dürr Systems GmbH Sensoranordnung für eine Beschichtungsanlage
DE10245594A1 (de) 2002-09-30 2004-04-08 Dürr Systems GmbH Verfahren zur Kollisionserkennung
EP1439344B1 (fr) * 2003-01-20 2011-04-27 Dürr Systems GmbH Râcleur
US6991178B2 (en) 2003-01-24 2006-01-31 Dürr Systems, Inc. Concentric paint atomizer shaping air rings
DE10333547A1 (de) 2003-07-23 2005-02-10 Dürr Systems GmbH Verfahren und Einrichtung zur Potentialsteuerung einer gemolchten Leitungsanordnung
PL1502656T3 (pl) * 2003-07-28 2011-03-31 Duerr Systems Gmbh Sposób zasilania farbą elektrostatycznego urządzenia powlekającego i zespół łączący do niego
DE102006025546B4 (de) * 2006-06-01 2010-06-02 Eisenmann Anlagenbau Gmbh & Co. Kg Molch zum Fördern eines Arbeitsmediums
US8671495B2 (en) 2006-11-06 2014-03-18 Durr Systems, Inc. Scraper pig
DE102016001544A1 (de) * 2016-02-10 2017-08-10 Eisenmann Se Isolationseinrichtung sowie Beschichtungssystem hiermit
DE102017111823A1 (de) * 2017-05-30 2018-12-06 Eisenmann Se Isolationseinrichtung sowie Beschichtungssystem hiermit

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Publication number Priority date Publication date Assignee Title
SE449451B (sv) * 1986-03-24 1987-05-04 Leif Tilly Sett och anordning att tillfora ett elektriskt ledande, flytande medium fran ett forradssystem till en forbrukningsstation
DE19728155A1 (de) * 1997-07-03 1999-01-07 Lactec Gmbh Verfahren und Vorrichtung zum Lackieren
DE19742588B4 (de) * 1997-09-26 2009-02-19 Dürr Systems GmbH Verfahren zum serienweisen Beschichten von Werkstücken
DE19830029A1 (de) * 1998-07-04 2000-01-05 Audi Ag Anlage zum Beschichten von Gegenständen, insbesondere von Fahrzeug-Karosserien
DE19937426A1 (de) * 1999-08-07 2001-03-15 Eisenmann Lacktechnik Kg Lackiervorrichtung

Also Published As

Publication number Publication date
ATE273757T1 (de) 2004-09-15
DE50007456D1 (de) 2004-09-23
ES2225007T3 (es) 2005-03-16
EP1108475A2 (fr) 2001-06-20
DE19961271A1 (de) 2001-07-05
EP1108475A3 (fr) 2003-06-11

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