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EP0537834B1 - Vorrichtung zur kontinuierlichen Beschickung, Rotation und elektrischen Anschluss von Stangen und ähnlichen in Elektroplattierungsanlagen - Google Patents

Vorrichtung zur kontinuierlichen Beschickung, Rotation und elektrischen Anschluss von Stangen und ähnlichen in Elektroplattierungsanlagen Download PDF

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Publication number
EP0537834B1
EP0537834B1 EP92203060A EP92203060A EP0537834B1 EP 0537834 B1 EP0537834 B1 EP 0537834B1 EP 92203060 A EP92203060 A EP 92203060A EP 92203060 A EP92203060 A EP 92203060A EP 0537834 B1 EP0537834 B1 EP 0537834B1
Authority
EP
European Patent Office
Prior art keywords
movement
rotation
clamps
shaft
bars
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
EP92203060A
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English (en)
French (fr)
Other versions
EP0537834A1 (de
Inventor
Sergio Angelini
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.)
GALTEC S.R.L.
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GALTEC Srl
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Filing date
Publication date
Application filed by GALTEC Srl filed Critical GALTEC Srl
Publication of EP0537834A1 publication Critical patent/EP0537834A1/de
Application granted granted Critical
Publication of EP0537834B1 publication Critical patent/EP0537834B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/04—Tubes; Rings; Hollow bodies

Definitions

  • the object of this invention is a device capable of bringing about continuously the feeding, rotation and electrical connection of bars and the like in electrolytic deposition plants such as known from FR-A-2 369 358.
  • the device should moreover be capable of being easily applied to both new and existing plants and should likewise be easily replaceable even temporarily to facilitate maintenance where necessary.
  • the present invention provides a device capable of bringing about continuously the feeding, rotation and electrical connection of bars and the like in electrolytic deposition plants and comprising a fixed frame to which are made integral means for generating a rotary movement capable of being transmitted, by suitable driving equipment, to a rotary head equipped with components moving in a rectilinear direction on the frame, under the pulling action of means capable of converting into rectilinear movement the rotary movement of the shaft whereby they are actuated, there being made integral with such rotary head a mandrel provided with clamping facilities charged with current by means of power-generating equipment and capable of undergoing controlled closure for the clamping and charging with current of such tubular component, which is thus placed simultaneously in conduction, in rotation on its own axis and in rectilinear movement in a longitudinal direction, there being furthermore provided means to control the stroke of the carriages and means for the rapid return thereof to the cycle start position.
  • such means of generation of movement shall preferably consist of a motor integral with the fixed frame and bringing about the rotation of a splined shaft, and also that such rotary head shall preferably consist of a hollow component carrying a rotary drive pinion at one end, a device for controlling the closure of such clamps in the middle position, and the said mandrel at the opposite end.
  • Such mandrel furthermore consists of an annular body externally and coaxially to which is fitted an insulating support carrying in turn an annular commutator made of conductive material on which slide current-carrying brushes for generating the current to be applied to the clamps via suitable conductors, which clamps are made integral with the mandrel by means of articulated arms, designed to control the closure thereof against the return action of springs when rotated by the radial thrust of rollers on an inclined surface at the end of such arms, or to allow opening thereof by means of the said springs when such radial thrust ceases.
  • the device according to the invention also provides for such radial thrust to be applied/removed by the forward/reverse movement in an axial direction of the said annular body on which are mounted the rollers, the axial movement being controlled by a fork-shaped component which carries rollers cooperating with the annular body and which is made to rotate around a pin integral with the carriage by means of a pneumatic cylinder, such rotation causing forward or return rectilinear movement parallel to the axis of such rollers and therefore of the annular body.
  • Such means of rapid return of the carriages to the cycle start position are preferably comprised of hydraulic cylinders, the free end of the shaft of each of which is integral with the relevant carriage, rapid return being controlled by limit switches which govern the simultaneous entry into operation of the clutch as well as means for disconnecting the current to the clamps prior to the opening thereof, substantially consisting of a pneumatic cylinder capable of actuating a pair of contacts, at least one of which is a moving contact, interposed between the said clamps and the negative pole of the power circuit.
  • the device 1 is essentially comprised of a fixed frame 1a carrying a pair of bars 2a on which are mounted by means of rollers, not illustrated, two carriages 2 to each of which is made integral at the top a head 3; such frame 1 also carries a motor 4 capable of bringing about the rotation of a splined shaft 5 located lengthwise, parallel to the direction of forward movement A of bars 6.
  • such splined shaft 5 provides in practice all the movement of the device; by means of a bevel gear 7, keyed to shaft 5, and a clutch 8 there is made to rotate a pinion 7b which is engaged with a rack 7c located parallel to shaft 5 and secured to frame 1, bevel gear 7 being in turn mounted on bearings 2b on which is mounted carriage 2, the latter being forced to move axially in the direction of arrow A following clockwise rotation of shaft 5, there being thus achieved the desired longitudinal forward movement of the carriage and therefore of bar 6 to which it is made integral, as will be explained more clearly hereinafter.
  • Head 3 of carriage 2 is substantially comprised of a housing 9 to the rear end of which is keyed a pinion 10 which, via a chain 10a, is driven by a crown wheel 10b, keyed in turn to shaft 5, thus causing housing 9 to rotate.
  • a mandrel 11 which is substantially comprised of an annular body 11a keyed to housing 9 and rotating integrally therewith; on annular body 11a are coaxially arranged a support 11b made of insulating material supporting in turn a commutator 11c made of conductive material, typically copper, which, on rotating with housing 9, operates the sliding contact located on current-carrying brushes 12 for the transmission of the negative charge which, via braided conductors 13, is supplied to a pair of likewise conducting clamps 14, designed to close against the action of return springs, not illustrated, on bar 6 which is to be made conductive.
  • Head 3 is completed by the closing device operated by such clamps 14, which is substantially comprised of a pneumatic cylinder 15 the end of which is rotationally integral with a base 15a mounted idly by means of bearings 15b on carriage 2 and shaft 15c of which has a free end hinged via a pin 16a to the upper end of a fork 16, the lower opposite end of which is hinged to a support 2b secured to carriage 2.
  • a pneumatic cylinder 15 the end of which is rotationally integral with a base 15a mounted idly by means of bearings 15b on carriage 2 and shaft 15c of which has a free end hinged via a pin 16a to the upper end of a fork 16, the lower opposite end of which is hinged to a support 2b secured to carriage 2.
  • fork 16 supports a pair of rollers 16b arranged with their axis at right angles to the direction of forward movement and designed to be housed in an annular cavity 17a of a substantially cylindrical hollow body 17, mounted coaxially on housing 9 and moving freely thereon over a short length, under the thrust or return action exerted by rollers 16b operated in either direction by the corresponding movement of fork 16 operated by cylinder 15.
  • cylindrical body 17 carries a pair of rollers 17b located in contact with a gradient 18a of the relevant arms 18 which operate clamps 14.
  • the device also has a pair of pneumatic cylinders 19, integral with fixed frame 1, the shaft of which is made integral with carriages 2 to cause them to perform a rapid return stroke as will be described more clearly hereinafter.
  • the device according to the invention is equipped externally at both facing heads with an electroplating system, so that the heads of mandrel 11 represented in practice by clamps 14 are frontally opposed; there are then made integral, by means of a universal joint, drive shafts 5 driven by a single motor 4, so that both the traversing movements of carriages 2 and the rotary movements of mandrels 11 are fully synchronized, it being particularly important that the forward movement be determined by the pulling action of the front device and not by the thrust action of the rear device, in order to prevent any impact of bars 6 which, on bending, could come into contact with anodes 20 and cause shortcircuiting.
  • fig. 1 is likewise shown a circuit-breaker assembly which is operated by cylinder 23 and allows breaking of contacts 21 and 22 to disconnect the current prior to any opening of the relevant clamps 14 on bar 6.
  • rear carriages 2A,2C initiate an identical sequence of return of front carriages 2B,2D which, in the manner already described, return in a rapid stroke to the initial position and resume the cycle of forward movement in conjunction with the corresponding rear carriages 2A,2C.
  • the device according to the invention makes it possible to feed the bar continuously and at the same time cause it to perform a continuous rotation around its own axis while being maintained at the same time at a negative potential relative to that of the anode; it is furthermore apparent that the device can be readily adapted to the different diameters of the bars to be fed by means of the greater or lesser closure of the retaining and current-supplying clamps and that operation in a dry condition allows easy and safe application and removal thereof to and from the processing plants.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Claims (10)

  1. Vorrichtung zum kontinuierlichen Bewerkstelligen des Vorschubs, der Drehung und der elektrischen Verbindung von Stangen und dergleichen in elektrolytischen Abscheideanlagen, umfassend einen feststehenden Rahmen (1), an dem integrale Mittel (4, 5) angeordnet sind, um eine Drehbewegung zu erzeugen, die über zugehörige Antriebseinrichtungen (10, 10a, 10b) auf einen Drehkopf (3) übertragbar sind, ausgestattet mit Bauteilen (2), die sich unter der Zugwirkung von Mitteln (7, 7b, 7c), die die Drehbewegung einer sie betätigenden Welle (5) in eine geradlinige Bewegung umsetzen können, geradlinig auf dem Rahmen (1) bewegen, dadurch gekennzeichnet, daß integral mit dem Drehkopf (3) eine Einspannvorrichtung (11) vorgesehen ist, die mit Klemmitteln (14) ausgestattet ist, in die von einer Energiequelle (11c, 12) Strom eingespeist wird, und die in der Lage sind, eine gesteuerte Schließbewegung auszuführen, um eine beispielsweise rohrförmige Komponente (6) einzuklemmen und in die Komponente Strom einzuspeisen, wodurch die Komponente gleichzeitig stromleitend gemacht, um ihre eigene Achse in Drehung versetzt und einer geradlinigen Längsbewegung unterzogen wird, und daß außerdem Mittel, um den Hub von Schlitten (2) zu steuern und eine Einrichtung (19) für deren raschen Rückstellhub in die Zyklus-Startposition vorgesehen sind.
  2. Vorrichtung zum kontinuierlichen Bewerkstelligen des Vorschubs, der Drehung und der elektrischen Verbindung von Stangen und dergleichen in elektrolytischen Abscheideanlagen nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zum Erzeugen einer Drehbewegung vorzugsweise einen Motor (4) aufweisen, der fest an dem feststehenden Rahmen (1) angeordnet ist und die Drehbewegung einer Keilwelle (5) veranlaßt.
  3. Vorrichtung zum kontinuierlichen Bewerkstelligen des Vorschubs, der Drehung und der elektrischen Verbindung von Stangen und dergleichen in elektrolytischen Abscheideanlagen nach Anspruch 1, dadurch gekennzeichnet, daß der Drehkopf (3) vorzugsweise ein hohles Bauteil (9) aufweist, welches an einem Ende ein Drehantriebsritzel (10), eine Einrichtung (17) zum Steuern des Schließens von Klemmen (14) im Mittelbereich und an dem anderen Ende die Einspannvorrichtung (11) trägt.
  4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Einspannvorrichtung (11) aufweist: einen Ringkörper (11a), an dem außerhalb und koaxial ein Isolierträger (11b) angesetzt ist, der seinerseits einen ringförmigen Kommutator (11c) aus leitendem Material trägt, auf dem Strombürsten (12) gleiten, um den über geeignete Leiter (13) an die Klemmen (14) zu liefernden Strom bereitzustellen.
  5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Klemmen (14) mit Hilfe von Gelenkarmen (18) einteilig mit der Einspannvorrichtung (11) ausgebildet sind, wobei die Arme derart ausgebildet sind, daß sie den Schließvorgang der Klemmen gegen die Rückstellkraft von Federn steuern, wenn sie durch die auf eine Schrägfläche (18a) am Ende dieser Arme (18) einwirkende Radialkraft von Rollen (17b) verschwenkt werden, oder deren Öffnen mit Hilfe der Federn ermöglichen, wenn die Radialkraft weggenommen wird.
  6. Vorrichtung nach Anspruch 1 und 5, dadurch gekennzeichnet, daß die Radialkraft aufgebracht/entfernt wird durch die in axialer Richtung erfolgende Vorwärts-/Rückwärtsbewegung eines Ringkörpers (17), an dem Rollen (17b) gelagert sind, wobei die Axialbewegung gesteuert wird durch ein gabelförmiges Bauteil (16), welches mit dem Ringkörper (17) zusammenwirkende Rollen (16b) trägt, und welches um einen zu einem Schlitten (2) gehörigen Zapfen mit Hilfe eines pneumatischen Zylinders (15) verschwenkt wird, wobei dieses Verschwenken eine geradlinige Vorwärts- oder Rückwärtsbewegung parallel zu der Achse dieser Rollen (16b) und damit dem Ringkörpers (17) hervorruft.
  7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zum Umwandeln der Drehbewegung der Welle (5) in eine geradlinige Bewegung von Schlitten (2) vorzugsweise aufweisen: einen Kegelrad (7), welches auf die Welle aufgekeilt ist und ein Ritzel (7b) betätigt, welches mit einer Zahnstange (7c) zusammenarbeitet, welche parallel zu der Achse der Vorwärtsbewegung angeordnet und an dem Rahmen (1) festgelegt ist, wobei zwischen dieser Zahnstange (7c) und dem Ritzel (7b) eine Kupplung (8) für einen gesteuerten Leerlauf des Antriebs angeordnet ist.
  8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Einrichtung für den schnellen Rückstellhub der Schlitten zu der Zyklus-Startposition vorzugsweise aus Hydraulikzylindern (19) besteht, deren freie Wellenenden jeweils mit dem zugehörigen Schlitten (2) gekoppelt sind, wobei ein schneller Rückstellhub durch Grenzschalter gesteuert wird, welche den gleichzeitigen Betriebsbeginn der Kupplung (8) steuern.
  9. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zum Übertragen der Bewegung von der Welle (5) auf den Kopf (3) vorzugsweise ein Kronenrad (10b) aufweisen, welches über eine Kette (10a) mit einem Ritzel (10) gekoppelt ist.
  10. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß Mittel vorgesehen sind, um die Stromzufuhr zu den Klemmen (14) vor deren Öffnen zu sperren, im wesentlichen bestehend aus einem pneumatischen Zylinder (23), der ein Paar Kontakte (21, 22) betätigt, von denen mindestens einer ein beweglicher Kontakt ist, der sich zwischen den Klemmen und dem Minuspol der Energiequelle befindet.
EP92203060A 1991-10-14 1992-10-06 Vorrichtung zur kontinuierlichen Beschickung, Rotation und elektrischen Anschluss von Stangen und ähnlichen in Elektroplattierungsanlagen Expired - Lifetime EP0537834B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI912711 1991-10-14
ITMI912711A IT1251691B (it) 1991-10-14 1991-10-14 Apparecchiatura atta ad operare in continuo l'avanzamento, la rotazione e il collegamento elettrico di barre e simili in impianti di deposizone elettrolitica.

Publications (2)

Publication Number Publication Date
EP0537834A1 EP0537834A1 (de) 1993-04-21
EP0537834B1 true EP0537834B1 (de) 1996-07-31

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EP92203060A Expired - Lifetime EP0537834B1 (de) 1991-10-14 1992-10-06 Vorrichtung zur kontinuierlichen Beschickung, Rotation und elektrischen Anschluss von Stangen und ähnlichen in Elektroplattierungsanlagen

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EP (1) EP0537834B1 (de)
AT (1) ATE140983T1 (de)
DE (1) DE69212561T2 (de)
IT (1) IT1251691B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107988626B (zh) * 2018-01-02 2024-02-27 楼益新 分段轨道式自动化连续电镀生产线

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE758436A (fr) * 1969-06-06 1971-04-16 Angelini S Procede et appareillage pour le chromage continu en epaisseur de barres, fils et tubes a l'exterieur ou a l'interieur
IT1069028B (it) * 1976-10-27 1985-03-21 Angelini S Procedimento e apparecchiatura per la cromatura di barre

Also Published As

Publication number Publication date
ITMI912711A0 (it) 1991-10-14
ATE140983T1 (de) 1996-08-15
IT1251691B (it) 1995-05-19
EP0537834A1 (de) 1993-04-21
DE69212561D1 (de) 1996-09-05
ITMI912711A1 (it) 1993-04-14
DE69212561T2 (de) 1997-03-06

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