EP1910589B1 - Dispositif de peinture par immersion electrique - Google Patents

Dispositif de peinture par immersion electrique Download PDF

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Publication number
EP1910589B1
EP1910589B1 EP06776524A EP06776524A EP1910589B1 EP 1910589 B1 EP1910589 B1 EP 1910589B1 EP 06776524 A EP06776524 A EP 06776524A EP 06776524 A EP06776524 A EP 06776524A EP 1910589 B1 EP1910589 B1 EP 1910589B1
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EP
European Patent Office
Prior art keywords
workpiece
electro
control system
workpieces
dip lacquering
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.)
Active
Application number
EP06776524A
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German (de)
English (en)
Other versions
EP1910589A1 (fr
Inventor
Thomas Noller
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.)
Eisenmann Anlagenbau GmbH and Co KG
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Eisenmann Anlagenbau GmbH and Co KG
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Application filed by Eisenmann Anlagenbau GmbH and Co KG filed Critical Eisenmann Anlagenbau GmbH and Co KG
Priority to PL06776524T priority Critical patent/PL1910589T3/pl
Publication of EP1910589A1 publication Critical patent/EP1910589A1/fr
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Publication of EP1910589B1 publication Critical patent/EP1910589B1/fr
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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

  • electro-dip painting also called electrophoretic painting
  • the paint constituents are separated in the paint bath under the influence of an electric field on the workpieces. It has proven to be expedient not to keep the electric field during the passage of the workpieces through the coating bath constant, but to vary along the path of movement, in particular to let rise with the distance traveled. Reason for this measure is, inter alia, that the build-up paint layer is an electrical resistance, which complicates the further construction of the paint layer.
  • Object of the present invention is to provide an electro-dip painting device of the type mentioned in such a way that it can be easily controlled, is flexible and causes less wear on the contactors.
  • each workpiece is assigned a separate voltage regulation unit. This is controlled according to the position of the workpiece so that at any time the workpiece is at the desired potential. In this way, a much more sensitive adjustment of the potentials on the workpieces can be accomplished as in the known division of the contact rail into individual sections. A change to another type of workpieces is easily possible only by programming measures. The absence of cuts in the contact rail has a favorable effect on the service life of the contact devices.
  • the at least one controller may be the central controller of the device. This is especially in question where the conveyor comprises a conveyor chain and all workpieces move at the same speed.
  • Modern devices have conveyor systems with independently moving, each bearing at least one workpiece weighing. Since these vehicles are generally themselves “intelligent", ie have a decentralized control, this can also be used for the purposes according to the invention be used.
  • the position-determining device has a position code rail and, for each workpiece, a reading head which is moved along with the workpiece and which is capable of reading out the local code of the position code rail.
  • Appropriate position code rails are commercially available relatively inexpensive and have a high accuracy.
  • a navigating system such as a laser-based or GPS-based system, may be used as the position-determining device.
  • the position determining means comprises a presence sensor at the beginning of the path of movement of the workpieces through the paint bath and speed sensors for the workpieces, wherein the controller is designed so that it from the detected speeds and the elapsed since the response of the presence sensor time for Each workpiece can calculate the current position.
  • the distance covered can also be detected directly and from this the instantaneous position of each workpiece can be calculated.
  • the distance measurement can be done by counting the passed chain links, working with wheels conveyor systems by counting the revolutions of the wheels.
  • the drawing shows a total of three vehicle bodies 1a, 1b, 1c, which one can think of immersed in a paint liquid filled with paint pool, as mentioned in the above DE 199 42 556 C2 is described.
  • the paint pool is in FIG. 1 not shown, nor the conveyor, with which the various vehicle bodies 1a, 1b, 1c are moved by the paint pool continuously or intermittently.
  • a suspension conveyor as he as a conveyor 12 in the DE 199 42 556 C2 is shown, a chain conveyor on which the workpieces are movably supported, but also a conveyor that makes use of individual, independently movable and controllable weighing.
  • counter electrodes in particular anodes, placed in a known manner along the path of movement of the vehicle bodies 1a, 1b, 1c, as also the DE 199 42 556 C2 can be seen.
  • the electric field which is established within the paint liquid between the counter electrodes and the vehicle bodies 1a, 1b, 1c, the deposition of the paint components on the vehicle bodies 1a, 1b, 1c takes place.
  • the ampere-hour number that has flowed between the counterelectrodes and the vehicle bodies 1a, 1b, 1c as they pass through the paint pool represents a direct measure of the thickness of the deposited paint layer.
  • the Vehicle bodies 1a, 1b, 1c are connected during their movement through the paint bath with the corresponding pole of a DC voltage source 20, in the usual case of cataphoretic dip painting with the negative pole.
  • a contact rail extends 2.
  • This contact rail 2 is not interrupted on the entire length, thus does not have the usual in the art "cuts", So places where various portions of the contact rail 2 are electrically isolated attached to each other.
  • the contact rail 2 is connected to a pole, preferably the negative pole, of the DC voltage source 20. It is generally sufficient if the DC voltage source 20 outputs a constant output voltage which corresponds to the maximum voltage to be applied to the vehicle bodies 1a, 1b, 1c.
  • the other pole of the DC voltage source 20 is connected to the electrodes arranged along the path of movement, preferably anodes.
  • Each vehicle body 1a, 1b, 1c is associated with a contact shoe 3a, 3b, 3c, which, making an electrical connection, slides along the contact rail 2.
  • the contact shoes 3a, 3b, 3c are not connected directly to the respective vehicle bodies 1a, 1b, 1c but via a controllable voltage regulation unit 4a, 4b, 4c.
  • the voltage regulation units 4a, 4b, 4c are designed such that, in accordance with a control signal supplied to them by a controller 5 via a line 6a, 6b, 6c, the voltage lying on the contact rail 2 is unchanged or changed, in general reduced, can pass on to the corresponding vehicle body 1a, 1b, 1c.
  • a position code rail 7 Parallel to the contact rail 2, also outside the lacquer liquid, runs a position code rail 7. This carries along its longitudinal extent in all places a readable code that stands for the position of the point in question.
  • Each vehicle body 1a, 1b, 1c is associated with a reading head 8a, 8b, 8c capable of reading the current position of the corresponding vehicle body 1a, 1b, 1c from the position code rail 7.
  • the signals read out by the reading heads 8a, 8b, 8c are supplied to the controller 5 via a respective line 9a, 9b, 9c.
  • the controller 5 includes a memory in which is suitably stored for each vehicle body 1a, 1b, 1c or at least for each type of vehicle body 1a, 1b, 1c to be handled on the device, which voltage at which point along of the movement path is to be applied to the vehicle body 1a, 1b, 1c in question.
  • the electro-dip painting apparatus described above operates as follows:
  • the controller 5 now outputs to the corresponding voltage regulation unit 4a, 4b, 4c via the line 6a, 6b, 6c from a corresponding signal, which ensures that the voltage regulation unit 4 actually generates the desired voltage from the voltage prevailing on the contact rail 2 voltage and to the vehicle body 1a, 1b, 1c sets.
  • the read head 8a, 8b, 8c transmits either continuously or after passing through small Weginkremente the respective position and the controller 5 regulates the voltage applied to the associated vehicle body 1a, 1b, 1c voltage via the voltage regulation units 4a, 4b, 4c.
  • the positioning device which was formed by the position code rail 7 and the read heads 8a, 8b, 8c in the embodiment described above, can of course also be replaced by other position determination devices.
  • a navigating system based on laser control or GPS is usable.
  • a sensor can be arranged at the entrance of the movement path through the paint pool, which reports the arrival of a vehicle body. From there, the respective position of the vehicle body from its speed, which is constantly determined and is monitored, and the elapsed time is calculated.

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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)
  • Coating Apparatus (AREA)
  • Spray Control Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (11)

  1. Dispositif de peinture par immersion électrique comportant
    a) un bain de peinture ;
    b) un dispositif de transport avec lequel les pièces à peindre peuvent, en continu, être immergées dans le bain de peinture, transportées à travers celui-ci puis sorties du bain ;
    c) une source de tension ;
    d) des électrodes disposées dans le bain de peinture le long du chemin de déplacement des pièces, lesquelles électrodes sont reliées à un pôle de la source de tension ;
    e) un rail de contact qui s'étend le long du chemin de déplacement des pièces et qui est relié au deuxième pôle de la source de tension ;
    f) pour chaque pièce, un dispositif de contact qui est relié au rail de contact ;
    g) au moins une commande avec laquelle la tension appliquée à chaque pièce pendant son déplacement à travers le bain de peinture est réglable ;
    caractérisé en ce que
    h) le rail de contact (2) est ininterrompu sur toute son extension à travers le bain de peinture ;
    i) une unité de régulation de tension commandable (4a, 4b, 4c) est disposée entre chaque dispositif de contact (3a, 3b, 3c) et la pièce (1a, 1b, 1c) correspondante ;
    j) il est prévu un dispositif de détermination de position (7, 8a, 8b, 8c) qui détermine la position courante de chaque pièce (1a, 1b, 1c) et délivre un signal correspondant à ladite au moins une commande (5) ;
    k) ladite au moins une commande (5) est conçue de manière à déterminer pour chaque pièce (1a, 1b, 1c), à partir du signal du dispositif de détermination de position (7, 8a, 8b, 8c) qui lui est amené, une tension à laquelle la pièce (1a, 1b, 1c) doit se trouver à cette position et à délivrer un signal de commande correspondant à l'unité de régulation de tension (4a, 4b, 4c) de la pièce (1a, 1b, 1c) correspondante.
  2. Dispositif de peinture par immersion électrique selon la revendication 1, caractérisé en ce que ladite au moins une commande est la commande centrale (5) du dispositif.
  3. Dispositif de peinture par immersion électrique selon la revendication 1, caractérisé en ce qu'il est prévu pour chaque pièce une commande décentralisée qui se déplace avec la pièce.
  4. Dispositif de peinture par immersion électrique selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif de détermination de position présente un rail de codage de position (7) ainsi que pour chaque pièce (1a, 1b, 1c) une tête de lecture (8a, 8b, 8c) déplacée avec la pièce (1a, 1b, 1c), qui est en mesure de lire le code local du rail de codage de position (7).
  5. Dispositif de peinture par immersion électrique selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif de détermination de position est un système de navigation.
  6. Dispositif de peinture par immersion électrique selon la revendication 5, caractérisé en ce que le dispositif de détermination de position est un système piloté par laser.
  7. Dispositif de peinture par immersion électrique selon la revendication 5, caractérisé en ce que le dispositif de détermination de position est un système basé sur le GPS.
  8. Dispositif de peinture par immersion électrique selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif de détermination de position comprend un capteur de présence au début du chemin de déplacement des pièces à travers le bain de peinture et des capteurs de vitesse pour chaque pièce, la commande étant conçue de manière à pouvoir calculer pour chaque pièce la position courante à partir des vitesses saisies et du temps écoulé depuis le déclenchement du capteur de présence.
  9. Dispositif de peinture par immersion électrique selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif de détermination de position comprend un capteur de présence au début du chemin de déplacement des pièces à travers le bain de peinture et, pour chaque pièce, un dispositif de saisie de la distance parcourue, la commande étant conçue de manière à pouvoir calculer pour chaque pièce la position courante à partir des distances saisies depuis le déclenchement du capteur de présence.
  10. Dispositif de peinture par immersion électrique selon la revendication 9, caractérisé en ce que le dispositif de transport comprend une chaîne de transport et que le dispositif de saisie de la distance parcourue présente un dispositif de comptage pour les maillons de la chaîne de transport se déplaçant devant lui.
  11. Dispositif de peinture par immersion électrique selon la revendication 9, caractérisé en ce que le dispositif de transport comprend pour chaque pièce au moins une roue tournante et que le dispositif de saisie de la distance parcourue présente un dispositif de comptage pour le nombre de tours de la roue.
EP06776524A 2005-08-06 2006-07-31 Dispositif de peinture par immersion electrique Active EP1910589B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06776524T PL1910589T3 (pl) 2005-08-06 2006-07-31 Urządzenie do elektrycznego lakierowania zanurzeniowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005037174A DE102005037174B3 (de) 2005-08-06 2005-08-06 Elektro-Tauchlackiervorrichtung
PCT/EP2006/007561 WO2007017153A1 (fr) 2005-08-06 2006-07-31 Dispositif de peinture par immersion electrique

Publications (2)

Publication Number Publication Date
EP1910589A1 EP1910589A1 (fr) 2008-04-16
EP1910589B1 true EP1910589B1 (fr) 2008-11-12

Family

ID=36500488

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06776524A Active EP1910589B1 (fr) 2005-08-06 2006-07-31 Dispositif de peinture par immersion electrique

Country Status (8)

Country Link
US (1) US8016994B2 (fr)
EP (1) EP1910589B1 (fr)
CN (1) CN101238245B (fr)
DE (2) DE102005037174B3 (fr)
ES (1) ES2314937T3 (fr)
PL (1) PL1910589T3 (fr)
RU (1) RU2412286C2 (fr)
WO (1) WO2007017153A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005036115B4 (de) * 2005-08-01 2017-03-23 Eisenmann Se Elektro-Tauchlackierungsvorrichtung
US8313627B2 (en) * 2008-01-24 2012-11-20 GM Global Technology Operations LLC Drag through electro-deposition system
JP2010059527A (ja) * 2008-09-08 2010-03-18 Toyota Motor Corp 電着塗装モニタリング装置とその方法および電着塗装物の製造方法
DE102010043206A1 (de) * 2010-11-02 2012-05-03 Robert Bosch Gmbh Beschichtungsvorrichtung und Verfahren zum geregelten galvanischen Beschichten eines Objekts
CN102465329B (zh) * 2010-11-19 2014-04-02 北汽福田汽车股份有限公司 电泳线喷淋设备和电泳线喷淋系统
JP5873634B2 (ja) * 2011-01-11 2016-03-01 富士重工業株式会社 電着塗装装置及び電着塗装方法
CN108584354B (zh) * 2017-12-22 2020-03-10 湖北大学 节拍式流水生产线不合格品检测定位的装置及方法
CN108330527B (zh) * 2018-04-27 2023-11-10 常州市骠马工业机器人系统工程有限公司 一种电泳整流高低压阳极管切换装置
CN109868497A (zh) * 2019-03-18 2019-06-11 保定莱特整流器股份有限公司 利于改善电泳漆膜均匀性的分布式整流器加电方法

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE1936744C3 (de) * 1968-07-20 1975-02-27 Nippon Paint Co., Ltd., Osaka (Japan) 20.07.68 Japan 51273-68 Verfahren zum Bestimmen des Umgriffe in einem Ellektrophoresebeschichtungsbad und Vorrichtung zu dessen Durchführung
DE3005810A1 (de) 1980-02-16 1981-08-27 Akzo Gmbh, 5600 Wuppertal Verfahren zur vorrichtung zur messung der streukraft eines lackes
JPH0768639B2 (ja) * 1986-12-10 1995-07-26 トヨタ自動車株式会社 電着塗装方法
CA1322737C (fr) * 1987-08-12 1993-10-05 Akito Inoue Systeme d'enduction par electrodeposition
DE69402939T2 (de) * 1993-10-22 1997-10-23 Renault Anlage zur Oberflächenbehandlung von metallischer Werkstücken durch Kataphorese, insbesondere von Automobilkarosserien
DE19942556C2 (de) * 1999-09-07 2003-04-30 Eisenmann Kg Maschbau Elektrotauchlackiervorrichtung
DE10326605A1 (de) 2003-06-13 2005-01-05 Daimlerchrysler Ag Verfahren, Computerprogramm und Steuervorrichtung zum Betreiben einer KTL-Anlage
CN2632100Y (zh) * 2003-06-26 2004-08-11 创宇科技工业股份有限公司 电镀涂装挂架装置
CN2647874Y (zh) * 2003-08-26 2004-10-13 上海市机电设计研究院 电泳涂装接电装置

Also Published As

Publication number Publication date
RU2412286C2 (ru) 2011-02-20
CN101238245B (zh) 2010-09-15
ES2314937T3 (es) 2009-03-16
US8016994B2 (en) 2011-09-13
WO2007017153A1 (fr) 2007-02-15
CN101238245A (zh) 2008-08-06
RU2008108300A (ru) 2009-09-20
EP1910589A1 (fr) 2008-04-16
US20080271993A1 (en) 2008-11-06
DE502006002089D1 (de) 2008-12-24
DE102005037174B3 (de) 2006-06-14
PL1910589T3 (pl) 2009-04-30

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