EP0691892B1 - Farbspritzanlage - Google Patents

Farbspritzanlage Download PDF

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Publication number
EP0691892B1
EP0691892B1 EP94912576A EP94912576A EP0691892B1 EP 0691892 B1 EP0691892 B1 EP 0691892B1 EP 94912576 A EP94912576 A EP 94912576A EP 94912576 A EP94912576 A EP 94912576A EP 0691892 B1 EP0691892 B1 EP 0691892B1
Authority
EP
European Patent Office
Prior art keywords
machine
coating
reservoir
product
spray head
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
EP94912576A
Other languages
English (en)
French (fr)
Other versions
EP0691892A1 (de
Inventor
Pierre Ehinger
Djamel Merabet
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.)
Sames Kremlin SAS
Original Assignee
Sames SA
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 Sames SA filed Critical Sames SA
Publication of EP0691892A1 publication Critical patent/EP0691892A1/de
Application granted granted Critical
Publication of EP0691892B1 publication Critical patent/EP0691892B1/de
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies
    • 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 machine for projecting coating product electrostatically on objects such as motor vehicle bodies.
  • the bodies are moved by conveyor and projection facility coating product generally includes several so-called “side machines” intended to coat the sides of the bodywork and a machine called “machine of roof “comprising a horizontal beam perpendicular to the bodywork route and intended to coat surfaces horizontal such as hood, roof and trunk bodies.
  • Each side machine carries a automatic sprayer, pneumatic or rotary type and the "roof machine” usually carries three sprayers of the same type.
  • GB-A-2 166 982 teaches to supply, by means of a connection head mobile, a tank associated with a projector, this tank and this projector being fixed.
  • patent FR 2 609 252 the Applicant proposed a coating product spraying machine constituted by a multi-axis robot carrying a tank and a associated sprayer. During the spraying phases, the tank is only in communication with the associated sprayer. When it is necessary to clean and fill the tank, the multi-axis robot approaches a fixed station installation located in the cabin and connects the tank to the fluid circulation circuits suitable, thanks to quick connection means.
  • a coating product spraying machine of the type carrying at least one sprayer and a tank on board near said sprayer, characterized in that it further carries a coating product change block on board a mobile sub-assembly of said machine also carrying said sprayer and said tank and in that said coating product change block and said tank are movable relative to each other between a position where said reservoir and said coating product change block are fluidly connected and a position where they are isolated from each other.
  • product change block from coating the unit known per se which makes it possible to clean and fill the tank with a specific color on board.
  • This unit therefore includes valves connected to coating product supply lines, at a solvent supply line and an air supply line.
  • the block of coating product change is movable between a position where it is connected to the tank and a position where it is isolated.
  • This configuration is particularly adequate in the case of the use of conductive coating such as paints water-soluble. Indeed, with such paintings, if one wish to spray electrostatically it is imperative to isolate the sprayer raised to high voltage of the product supply circuits of coating the potential of the earth.
  • the connection between the coating product change tank and block allows such insulation. It suffices to provide a sufficient distance between the tank and the change of coating product during the phases of covering where they are isolated from each other. This distance then allows for insulation electrical in addition to the desired fluid insulation.
  • the assembly carrying the tank and the sprayer is mobile.
  • the coating product change block is then either mobile, either fixed and the same electrical insulation and fluidics can be performed, as indicated above.
  • the side machine 1 shown in Figure 1 mainly comprises a frame 2 inside which is vertically movable a carriage 3 carrying an arm 4.
  • the means for driving and guiding the carriage have not been shown so as not to overload the drawing.
  • a support 5 containing a piston tank 6 and an air turbine 7 of a sprayer 8.
  • the support 5 can pivot relative to the arm 4 about an axis x .
  • the air turbine 7 is compact, so that the distance between the reservoir 6 and the edge of the bowl-shaped spraying member is less than 200 mm, for example of the order of 150 mm.
  • the arm 4 carries a coating product change block 9, attached to the lower part of said arm and supplied with coating product, air and solvent by a bundle of flexible conduits 10.
  • a high voltage unit 11 adjustable or interruptible, is installed in the cart and connected by a high wire sprayer voltage.
  • the exit of the block coating product change 9 is equipped with quick connection means 12 capable of cooperating with additional fast connection means 13 carried by support 5.
  • Fast connection means communicate with reservoir 6.
  • the block of coating product change 9 is suitable for slide along arm 4, being actuated by a jack 14.
  • the operation is as follows.
  • the reservoir 6 supplies coating product the spray bowl while it is disconnected from the product change block of coating 9.
  • the reservoir piston is actuated by compressed air. Under these conditions, it is possible apply high voltage to sprayer 8 and tank 6 which are isolated from the ground, even if the product coating is conductive.
  • the support 5 undergoes a movement of rotation in the direction of arrow R, which tends to direct the sprayer 8 downwards.
  • the coating product change block 9 undergoes a translation towards support 5, in the direction of arrow T, under the action of jack 14. These two movements have the effect of connecting the output of block 9 to tank 6 by connecting quick connection means 12 and 13. These operations take place at the end of the coating while the arm 4 is moving. In in other words, there is no need to move the tank 6 and sprayer 8 to a location any before starting the cleaning actions and filling.
  • the first operation is to do circulate in tank 6 and in sprayer 8 a solvent to clean the residue of the cleaning product previous.
  • the volume to be cleaned is low because the conduits between the coating product change block and tank on the one hand and between the tank and the sprayer on the other hand are short because of the proximity of these different elements and also because of the compactness of the turbine 7.
  • the sprayer 8 being directed downwards, the solvent flowing through it can be spilled into a grating 20 or any other recovery device adapted generally located near the floor of the cabin. It is then possible to fill the tank 6 with the amount of paint required for coating the next object. At the end of this operation, the means of quick connection 12 and 13 are decoupled and the coating of the next object can start immediately.
  • FIG. 2 shows the beam 50 of a "machine roof ".
  • the tank 56 and the sprayer 58 are housed in a support 52 projecting downwards at the outside of the body 53 of the beam.
  • This support is mobile in translation parallel to the axis 54 of the beam at by means of a jack 55 carried by the latter.
  • a block of change of coating product 59 supplied by a bundle of flexible conduits 60 for supplying coating, solvent and compressed air, is housed at the inside of the beam during the coating phases, which prevents it from disturbing the flow of the air around the beam or that it is contaminated by coating product drops.
  • the change block coating product 59 is further mounted-mobile vertically along a path close to a position end of the support 52. It is moved under the action of a jack 58 'carried by the beam. Under the action of this jack, the coating product change block exits the body 53 of the beam and lowers until it comes to rest against a surface 57 for docking the support 52, when the latter 52 is in said extreme position.
  • Means of additional quick connection, 61 and 62 are respectively mounted at the output of the change block coating product 59 and on the docking surface 57.
  • the connection means 62 communicate with the tank 56. When the support 52 is in its extreme position and when the block 59 is lowered under the action of the jack 58, the quick connection means 61 and 62 are coupled.
  • connection means 61 and 62 avoids the formation of electric arcs between the coating product change block connected to the earth and all the elements included in the support 52, which are at high voltage.
  • high voltage supply is interrupted and the product change block of liner is connected to tank 56 via quick connection means 61 and 62.
  • the body 153 of beam 150 contains both a block of coating product change 159, fixed, one unit high voltage 171, a tank 156, a sprayer 158, a product supply bundle 160 connected to the change of coating product 159. Downstream of this last, a cleaning-filling unit is installed 151.
  • the sprayer 158 is mounted at the end of a insulating support 152 containing a reservoir 156. The support is movable in vertical translation, i.e. perpendicular to the axis 154 of the beam, between a low coating position and a high position of cleaning-filling the tank 156.
  • the support 152 is integral with a piston 162 movable in a cylinder 164 thanks to two air inlets 165 and 166.
  • the conduit 166 leads into a closed upper chamber of the cylinder 164 of which a wall is formed by the piston 162.
  • the conduit 165 opens into an annular chamber defined between the piston 162, the cylinder 164, the support 152 and a tight sliding seal 168.
  • the whole of cylinder 164 and the objects it contains is movable under the action of a pneumatic cylinder 163 parallel to axis 154 to allow the movements of sprayer sweep 158.
  • An elbow fitting 173 is installed at the top of cylinder 164.
  • Des first rapid connection means 174 actuated by the cylinder 163 are provided between the cleaning-filling unit and the fitting 173.
  • Second means of quick connection 175 are provided between fitting 173 and the inlet to the tank 156.
  • the operation is as follows.
  • the support 152 In the spraying phase, the support 152 is in low position, the high voltage supplied by the high unit voltage 171 can be applied to the sprayer 158 by the cable 172, safe to return to earth or to the block change of coating product because the distance between piston 162 and cleaning-filling unit 151 is sufficient to allow electrical insulation.
  • the high voltage supply is cut, the cylinder 164 is moved parallel to the axis 154 by the cylinder 163 to close the connection means 174 and connection to the cleaning-filling unit 165.
  • the piston 162 is raised to operate the closing of the means 175. This puts the unit into communication 165, the tank 156 and the sprayer 158 for the cleaning and filling operations known to the skilled person.
  • This configuration is particularly advantageous because it allows positioning at different heights and variable the three sprayers carried by the beam of a "roof machine".
  • it is appropriate to raise the two side sprayers to because of the wheel arches on the sides of the vehicle while central sprayer should be close of the plate to ensure a good surface condition.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Spray Control Apparatus (AREA)

Claims (10)

  1. Spritzanlage für ein Beschichtungsprodukt der Art, die mindestens einen Zerstäuber (8, 58, 158) und einen in der Nähe des Zerstäubers angeordneten Behälter (6, 56, 156) trägt, dadurch gekennzeichnet, daß sie darüber hinaus eine Einheit (9, 59, 159) zum Wechseln des Beschichtungsproduktes trägt, die an einer mobilen Teilgruppe (4, 50, 150) der Anlage angeordnet ist, die gleichfalls den Zerstäuber und den Behälter trägt und daß die Einheit (9, 59, 159) zum Wechseln des Beschichtungsproduktes und der Behälter (6, 56, 156) zueinander zwischen einer Position, in der der Behälter (6, 56, 156) und die Einheit (9, 59, 159) zum Wechseln des Beschichtungsproduktes fluidmäßig miteinander verbunden sind, und einer Position, in der sie voneinander getrennt sind, bewegbar sind.
  2. Spritzanlage für ein Beschichtungsprodukt nach Anspruch 1, dadurch gekennzeichnet, daß sie einen Träger (5, 52) umfaßt, der den Behälter (6, 156) und den Zerstäuber (8, 158) trägt, wobei der Träger zwischen einer Position, in der der Behälter und die Einheit (9, 159) zum Wechseln von dem Beschichtungsprodukt fluidmäßig miteinander verbunden sind, und einer Position, in der sie voneinander getrennt sind, bewegbar ist.
  3. Spritzanlage für ein Beschichtungsprodukt nach Anspruch 1 des "Überkopfanlagen"-Typs mit einem Balken (50, 150), der den Zerstäuber (8, 58) trägt, dadurch gekennzeichnet, daß der Behälter (56, 156), der jedem Zerstäuber (58, 158) zugeordnet ist, in einem Träger (52, 152) aufgenommen ist, der vom Körper (53, 153) des Balkens (50, 150) nach außen vorspringt.
  4. Spritzanlage für ein Beschichtungsprodukt nach Anspruch 3, dadurch gekennzeichnet, daß die Einheit (59) zum Wechseln des Beschichtungsproduktes zwischen einer Position im Inneren des Körpers (53) der Anlage (50) und einer Position außerhalb des Körpers des Balkens bewegbar ist.
  5. Spritzanlage für ein Beschichtungsprodukt nach Anspruch 3, dadurch gekennzeichnet, daß der den Behälter (156) und den Zerstäuber (158) tragenden Träger (152) vertikal zwischen einer erhöhten Reinigungs-Füllposition des Behälters (156) und des Zerstäubers (158) und einer niedrigen Beschichtungsposition bewegbar ist.
  6. Spritzanlage für ein Beschichtungsprodukt nach Anspruch 5, dadurch gekennzeichnet, daß die Zerstäuber (158) in ihrer Höhe unabhängig voneinander einstellbar sind.
  7. Spritzanlage für ein Beschichtungsprodukt nach Anspruch 3, dadurch gekennzeichnet, daß der Träger (52) translatorisch parallel zur Achse (54) des Balkens (50) bewegbar ist.
  8. Spritzanlage für ein Beschichtungsprodukt nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie Mittel zur fluidmäßigen Verbindung (12, 13; 61, 62; 174, 175) aufweist, die einen elektrischen Isolator bilden.
  9. Spritzanlage für ein Beschichtungsprodukt nach einem der vorhergehenden Ansprüche, geeignet zur Beschichtung eines elektrisch leitenden Produktes, dadurch gekennzeichnet, daß der Behälter (6, 56, 156) während der Beschichtungsphasen, bei denen er von der Einheit (9, 59, 159) zum Wechseln des Beschichtungsproduktes getrennt ist, auf Hochspannung gebracht wird und während der Reinigungs- und Füllphasen des Behälters, bei denen er mit der Einheit zum Wechseln des Beschichtungsproduktes verbunden ist, auf Erde gesetzt wird.
  10. Spritzanlage für ein Beschichtungsprodukt nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Zerstäuber der rotierenden Art (8, 58, 158) ist und daß der Abstand zwischen der Kante des Zerstäubermantels und der am nächsten liegenden Fläche des Behälters (6, 56, 156) kleiner als 200 mm ist.
EP94912576A 1993-04-01 1994-03-31 Farbspritzanlage Expired - Lifetime EP0691892B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9303829 1993-04-01
FR9303829A FR2703266B1 (fr) 1993-04-01 1993-04-01 Machine de projection de produit de revêtement.
PCT/FR1994/000364 WO1994022590A1 (fr) 1993-04-01 1994-03-31 Machine de projection de produit de revetement

Publications (2)

Publication Number Publication Date
EP0691892A1 EP0691892A1 (de) 1996-01-17
EP0691892B1 true EP0691892B1 (de) 2001-11-14

Family

ID=9445631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94912576A Expired - Lifetime EP0691892B1 (de) 1993-04-01 1994-03-31 Farbspritzanlage

Country Status (8)

Country Link
US (1) US5772125A (de)
EP (1) EP0691892B1 (de)
JP (1) JPH08510407A (de)
CA (1) CA2158571C (de)
DE (1) DE69429088T2 (de)
ES (1) ES2165388T3 (de)
FR (1) FR2703266B1 (de)
WO (1) WO1994022590A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731921B1 (fr) * 1995-03-20 1997-04-30 Sames Sa Dispositif de projection electrostatique de produit de revetement
SE514375C2 (sv) * 1995-10-20 2001-02-19 Abb Flexible Automation As Vätskereglering för sprutmålningsapplikationer
DE19610588B4 (de) * 1996-03-18 2010-08-05 Dürr Systems GmbH Beschichtungsmaschine mit auswechselbarem Behälter
JP3299205B2 (ja) * 1998-12-18 2002-07-08 エービービー株式会社 自動塗装方法及びその装置
FR2797788B1 (fr) 1999-08-30 2001-11-23 Sames Sa Procede et station de changement de produit dans une installation de projection de produit de revetement
FR2813538B1 (fr) 2000-09-05 2003-03-14 Eisenmann France Sarl Procede et dispositif pour le remplissage d'un reservoir de peinture, dans une installation automatisee de peinture
US6945483B2 (en) 2000-12-07 2005-09-20 Fanuc Robotics North America, Inc. Electrostatic painting apparatus with paint filling station and method for operating same
AU2002257286A1 (en) 2001-05-16 2002-11-25 Fanuc Robotics North America, Inc. Voltage block and color change apparatus for waterborne bell applicator
DE10130173A1 (de) * 2001-06-22 2003-01-02 Duerr Systems Gmbh Pulverbeschichtungsanlage
WO2003045574A1 (en) 2001-11-21 2003-06-05 Fanuc Robotics North America, Inc. Apparatus and method for filling a painting robot canister
US20030175443A1 (en) * 2002-03-14 2003-09-18 Ghaffar Kazkaz Method and apparatus for dispensing coating materials
WO2004037436A1 (en) * 2002-10-23 2004-05-06 Fanuc Robotics America, Inc. Robotic apparatus for painting
US7056387B2 (en) * 2003-12-10 2006-06-06 Efc Systems, Inc. Apparatus and method for electrostatic spraying of conductive coating materials
EP1827706B1 (de) * 2004-09-23 2010-06-02 Abb As Lackdosiervorrichtung und für eine programmgesteuerte spritzlackiervorrichtung ausgeführtes system
ES2685244T3 (es) 2005-10-07 2018-10-08 Dürr Systems Ag Dispositivo de suministro de agente de revestimiento y procedimiento de funcionamiento correspondiente
DE102006053921B4 (de) * 2006-11-15 2016-11-24 Dürr Systems Ag Lackiermaschine mit einem Zerstäuber und zugehöriges Betriebsverfahren
FR2939335B1 (fr) * 2008-12-09 2011-11-18 Sames Technologies Station et procede pour reapprovisionner en produit de revetement un projecteur mobile
DE102010022309A1 (de) * 2010-06-01 2011-12-01 Dürr Systems GmbH Vorrichtung, Verfahren und System zur Aufnahme und/oder Abgabe von Entsorgungsmittel
FR2977508B1 (fr) * 2011-07-06 2013-08-16 Sames Technologies Station de nettoyage-remplissage pour moyens de projection

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US3674207A (en) * 1970-11-06 1972-07-04 Emidio J Carbonetti Jr Automated paint spray system
FR2552345B1 (fr) * 1983-09-27 1985-12-20 Sames Sa Appareillage de peinture electrostatique a pulverisateur pneumatique sur support mobile, reglable en fonctionnement
EP0178746A1 (de) * 1984-10-17 1986-04-23 Ransburg Corporation Verteilungssystem für Beschichtungsmaterial
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JPH026868A (ja) * 1988-06-25 1990-01-11 Taikisha Ltd 塗装ブースにおける塗装装置設置方法と塗装ブースの一部を構成する塗装機操作ユニット
JPH03123653A (ja) * 1989-10-05 1991-05-27 Taikisha Ltd 塗装装置
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FR2679795A1 (fr) * 1991-07-29 1993-02-05 Sames Sa Installation de projection de produit de revetement liquide.
GB9126033D0 (en) * 1991-12-07 1992-02-05 Eurotec Surface Coating Syst Mounting apparatus for spray guns
JPH05200333A (ja) * 1992-01-27 1993-08-10 Toyota Motor Corp 自動塗装装置

Also Published As

Publication number Publication date
CA2158571A1 (fr) 1994-10-13
DE69429088T2 (de) 2002-07-11
FR2703266B1 (fr) 1995-06-23
DE69429088D1 (de) 2001-12-20
EP0691892A1 (de) 1996-01-17
ES2165388T3 (es) 2002-03-16
CA2158571C (fr) 1999-08-31
WO1994022590A1 (fr) 1994-10-13
JPH08510407A (ja) 1996-11-05
US5772125A (en) 1998-06-30
FR2703266A1 (fr) 1994-10-07

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