EP0371900B1 - Elektrotauchlackieranlage für Kraftfahrzeugkarosserien - Google Patents

Elektrotauchlackieranlage für Kraftfahrzeugkarosserien Download PDF

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Publication number
EP0371900B1
EP0371900B1 EP19890470022 EP89470022A EP0371900B1 EP 0371900 B1 EP0371900 B1 EP 0371900B1 EP 19890470022 EP19890470022 EP 19890470022 EP 89470022 A EP89470022 A EP 89470022A EP 0371900 B1 EP0371900 B1 EP 0371900B1
Authority
EP
European Patent Office
Prior art keywords
arm
magnet
sled
sledge
cage
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
EP19890470022
Other languages
English (en)
French (fr)
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EP0371900A1 (de
Inventor
Hans De Kort
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.)
Air Industrie Systemes
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Air Industrie Systemes
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Publication date
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Application filed by Air Industrie Systemes filed Critical Air Industrie Systemes
Publication of EP0371900A1 publication Critical patent/EP0371900A1/de
Application granted granted Critical
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Anticipated expiration legal-status Critical
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D13/00—Electrophoretic coating characterised by the process
    • C25D13/22—Servicing or operating apparatus or multistep processes

Definitions

  • the present invention relates to a conveyor of vehicle bodies in an electro-deposition painting installation.
  • Conveyors of this type usually consist of two aerial and parallel support rails and a sledge carrying the vehicle to be painted below the support rails, the sledge being connected to the two support rails by lifting arms.
  • each lifting arm opposite the rail to which it is suspended, is arranged a hooking hand capable of being removably attached to a corresponding crankpin of the sledge.
  • one of the two rails is electrified by an electric current of 200 to 600 volts and 500 to 800 amps.
  • the two arms suspended from this rail conduct the electric current which, via the crankpin of the sledge and the hand of the lifting arm, passes into the sledge and electrifies the vehicle placed on this sledge.
  • the removable connection between the crankpin of the sledge and the hand of the lift arm is such that the electrical contacts are, taking into account the toboggan route, more or less well done and there then appears phenomena of electric arc which tear off metal, thus increasing friction and decreasing the quality of the electrical contacts in proportions such that the electric current does not pass more.
  • the present invention therefore aims to eliminate this phenomenon of electric arc in the crankpin-hand connection of a vehicle conveyor for painting installation by electro-deposition.
  • the present invention relates more particularly to a conveyor of vehicle bodies for painting installation by electro-deposition consisting of lift arms connecting a sledge to a carrier air device in which at least one lift arm has a hand consisting of on the one hand, an attachment device for the sledge, no electric current flowing between this attachment device and the sledge, and, on the other hand, a device for conduction of electricity to the sledge.
  • Another object of the present invention is to provide a device of the type described above in which the electricity conduction device consists of a support member on which is mounted with play a magnet electrically connected to a source of electric current.
  • the support member consists of an arm extending in the direction of the sledge and having, opposite an electrical contact surface of the sledge, a cage, mounted with play on the arm, inside from which the magnet is placed.
  • the conveyor according to the invention consists of an overhead carrier device, itself made up of two overhead carrier rails 1a, 1b, parallel, of a metal sledge 2 and of four lifting arms 3a, 3b connecting the sledge 2 to the two supporting rails 1a, 1b.
  • This sledge 2 is intended to carry a body not shown.
  • the two overhead rails 1a, 1b are, for example, chain conveyors and ensure a parallel advancement, at the same speed, of the lifting arms 3a, 3b, which are fixed there.
  • the electrified rail 1a is connected to the lifting arms 3a, which terminate, at their end opposite to the rail 1a, by a hand 4a detachably connected to a crank pin 5 of the sledge 2.
  • the non-electrified rail 1b is connected to the lifting arms 3b, each arm 3b ending, at its end opposite to the rail 1b, by a hand 4b detachably connected to a crank pin 5 of the sledge 2.
  • each hand 4b connected to a non-electrified arm 3b, consists of a hook 6, for example metallic, fixed to the arm 3b by several bolts 7 with horizontal axes perpendicular to the rail 1b, the hook 6 therefore being rigidly connected to the arm 3b.
  • crank pin 5 secured to the sledge 2.
  • This crank pin 5 consists of a rod 8 having a cylindrical part 9, of horizontal axis XX perpendicular to the rail 1b, intended to come into contact with an internal radial face 10 of the hook 6, an axial locking head 11 terminating the rod 8 at its end opposite the sledge 2.
  • the sledge 2 is fixed to a hand 4a, connected to an electrified arm 3a, by a crank pin 5 identical to that used for fixing said sledge 2 to a hand 4b connected to a non-electrified arm 3b.
  • the hand 4a consists of a hook 12, the crank pin 5 and a device 13 for conduction of electricity from the arm 3a to the locking head 11 of the crank pin 5, no electric current flowing from the hook 12 to the crank pin 5 of the sledge 2.
  • the hooking hook 12 can be metallic, the connection between this hook 12 and the arm 3a then being electrically insulated.
  • the hook 12 can, for example, be made of plastic material reinforced with glass fibers.
  • crank pin 5 as illustrated in FIG. 3, is supported, by its cylindrical part 9, on the internal radial face 10 of the hook 12.
  • the device 13 for conduction of electricity consists of an arm 14 of electrically insulating material, this arm 14 being fixed to the lifting arm 3a by steel bolts 15.
  • the bolts 15 are also used to fix the hook 12 on the arm 3a, but this hook 12 could be fixed by an independent device on the arm 3a.
  • This arm 14 is extended, in the direction of the locking head 11 of the crank pin 5 and is pierced with a hole 16, of diameter D, of axis YY parallel to the axis XX of the cylindrical part 9 of the crank pin 5, in the extension of the locking head 11.
  • this hole 16 is disposed a cage 17, integral with the arm 14 but having a large clearance both along the axis Y-Y as in any direction perpendicular to this axis.
  • this cage 17 consists of a hollow cylinder 18, of axis Z-Z parallel to the axis Y-Y of the hole 16 and of external diameter less than the diameter D of the hole 16.
  • the hollow cylinder 18 ends at each of its ends by a ring 19, 20, extending the cylinder in the external radial direction and each having an external diameter greater than the diameter D of the hole 16.
  • a magnet 22 In the cage 17 is placed a magnet 22, electrically connected to the bolts 15 by a braid 23.
  • This magnet 22 is mounted movable inside the hollow cylinder 18, obstacles preventing it from leaving the cage 17 but nevertheless allowing it to come in electrical contact with the locking head 11 of the crankpin 5.
  • a prominence 24 is provided at one face 21 of the arm 14 located opposite the insulating hook 12.
  • the electrical braid 23 is replaced by a metal plate 25 fixed to the lifting arm 3a by the bolts 15, this plate 25 having a horizontal part 26 on which are fixed at least two flat metallic braids 271, 273.
  • these braids 271, 272, 273 are connected, at their end opposite to the metal plate 25, to an electrical contactor constituted by a horizontal metal plate 28 connected to the magnet 22.
  • These braids 271, 272, 273 are folded in the shape of 'C' in a plane perpendicular to the axis YY of the hole 16 of the arm 14 and to the axis ZZ of the cage 17, thus defining an external braid 271, and an internal braid 273, the internal braid being with a length L3 less than the length L1 of the braid 271, the braid 272 being of a length L2 between L1 and L3.
  • the braids 271, 272, 273 work in a vertical plane like a spring allowing a certain rotation of the magnet 22 while always making it return to its equilibrium position once the sledge 2 has been detached from the lifting arms 3a.
  • a sledge 2 must be carried by four lifting arms. Each crank pin 5 of the sledge 2 strikes the hook 6, 12, with the hand 4a, 4b of the arm of lift 3a, 3b on which it is fixed, above the opening of the hook 6, 12 below the attachment bolts 7.15.
  • crank pin 5 having struck the hook 6 above its opening below the bolts 7, simply descends inside the hook 6.
  • crank pin 5 strikes the hook 12 of an electrified arm 3a by its cylindrical part 9, the crank pin 5, through its locking head 11, strikes the protrusion 24 of this arm 14, thus drawing aside the arm 14 from the hook 12 by the natural elasticity of this arm 14.
  • crank pin 5 thus descends into the hook 12 before the cage 17 and the magnet 22 return to their original position, prior to the separation of the arm 14.
  • the device according to the invention the functions of support and conduction of electricity having been separated, the electric arcs no longer occur, electrical continuity being always perfectly ensured.
  • the great mobility of the magnet 22 in the cage 17 and the great mobility of the cage 17 relative to the arm 14 allow the magnet to follow all the movements that the crank pin 5, and therefore the locking head 11 , are likely to follow with respect to the hook 12 during the circulation of the sledge 2 in the painting installation by electro-deposition.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chain Conveyers (AREA)
  • Spray Control Apparatus (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (5)

  1. Transportanlage für Fahrzeugkarosserien in einer Lackieranlage durch Elektrobeschichtung, mit Haltearmen (3a, 3b), die einen Schlitten (2) mit einem hochliegenden Tragesystem (1a, 1b) verbinden, dadurch gekennzeichnet, daß mindestens ein Haltearm (3a) eine Hakenvorrichtung (4a) enthält, die einerseits aus einem Haken (12) des Schlittens (2), wobei kein elektrischer Strom zwischen diesem Haken (12) und dem Schlitten (2) fließt, und andererseits einer Stromzuführvorrichtung (13) zum Schlitten (2) besteht.
  2. Transportsystem nach Anspruch 1, dadurch gekennzeichnet, daß die Stromzuführvorrichtung (13) aus einem Tragorgan (14 bis 17) besteht, auf der mit Spiel ein Magnet (22) montiert ist, der elektrisch an eine elektrische Stromquelle über eine Vorrichtung (23, 271-272-273) angeschlossen ist.
  3. Transportvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Tragorgan (14 bis 17) des Magneten (22) aus einem Arm (14) besteht, der sich in Richtung des Schlittens (2) verlängert und gegenüber einer elektrischen Kontaktfläche (11) des Schlittens (2) einen Käfig (17) besitzt, der mit Spiel auf dem Arm (14) montiert ist und in dem der Magnet (22) angebracht ist.
  4. Transportsystem nach Anspruch 2, dadurch gekennzeichnet, daß die Vorrichtung (271-272-273), die den Magneten (22) elektrisch mit der Stromquelle verbindet, aus einer Metallplatte (25) besteht, die mit einem horizontalen Bereich (26) an mindestens zwei flache Metallbänder (271, 273) angeschlossen ist, wobei diese Bänder mit ihrem anderen Ende an den waagrechten Bereich (26) eines elektrischen Kontaktglieds angeschlossen sind, das von einer waagrechten Platte (28) gebildet wird, die an den Magneten (22) angeschlossen ist.
  5. Transportsystem nach Anspruch 4, dadurch gekennzeichnet, daß die Bänder (271, 273) C-förmig in einer Ebene senkrecht zur Achse (Z-Z) des Käfigs (17) gebogen sind und ein inneres Band (273) einer Länge L3 sowie ein äußeren Band (271) einer großeren Länge L1 definieren.
EP19890470022 1988-11-28 1989-11-16 Elektrotauchlackieranlage für Kraftfahrzeugkarosserien Expired - Lifetime EP0371900B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8815790 1988-11-28
FR8815790A FR2639655B1 (fr) 1988-11-28 1988-11-28 Convoyeur de carrosseries de vehicules dans une installation de peinture par electro-deposition

Publications (2)

Publication Number Publication Date
EP0371900A1 EP0371900A1 (de) 1990-06-06
EP0371900B1 true EP0371900B1 (de) 1993-03-10

Family

ID=9372502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890470022 Expired - Lifetime EP0371900B1 (de) 1988-11-28 1989-11-16 Elektrotauchlackieranlage für Kraftfahrzeugkarosserien

Country Status (4)

Country Link
EP (1) EP0371900B1 (de)
DE (1) DE68905303T2 (de)
ES (1) ES2039924T3 (de)
FR (1) FR2639655B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4103171C1 (de) * 1991-02-02 1992-01-16 Duerr Gmbh, 7000 Stuttgart, De
FR2679572B1 (fr) * 1991-07-23 1993-12-17 Peugeot Automobiles Installation electrolytique, notamment pour peindre une caisse de vehicule automobile par cataphorese.
FR2679705A1 (fr) * 1991-07-24 1993-01-29 Ugine Sa Dispositif de connexion electrique entre une electrode et une arrivee de courant.
DE9415138U1 (de) * 1993-11-23 1995-03-16 Nütro Maschinen- und Anlagenbau GmbH & Co. KG, 90425 Nürnberg Vorrichtung zum Tauchlackieren
FR2742770B1 (fr) * 1995-12-21 1998-02-27 Peugeot Dispositif de distribution d'electricite par contact glissant
FR2807769B1 (fr) * 2000-04-14 2003-06-27 Peugeot Citroen Automobiles Sa Installation electrolytique pour peindre par cataphorese une structure, telle qu'une caisse de vehicule automobile

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3232641A1 (de) * 1982-09-02 1984-03-08 Volkswagenwerk Ag, 3180 Wolfsburg Anlage nach art einer elektro-tauchlackieranlage
CA1237382A (en) * 1983-11-14 1988-05-31 Thomas N. Urquhart Electrodeposition system and method therefor

Also Published As

Publication number Publication date
DE68905303T2 (de) 1993-12-02
ES2039924T3 (es) 1993-10-01
FR2639655B1 (fr) 1991-01-11
FR2639655A1 (fr) 1990-06-01
EP0371900A1 (de) 1990-06-06
DE68905303D1 (de) 1993-04-15

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