EP1910589B1 - Electro dipping device - Google Patents
Electro dipping device Download PDFInfo
- 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
- Authority
- 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
Links
- 238000007598 dipping method Methods 0.000 title 1
- 239000004922 lacquer Substances 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 3
- 239000003973 paint Substances 0.000 description 27
- 238000010422 painting Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000001652 electrophoretic deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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.
Landscapes
- 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)
Description
Die Erfindung betrifft eine Elektro-Tauchlackiervorrichtung mit
- a) einem Lackbad;
- b) einer Fördereinrichtung, mit der die zu lackierenden Werkstücke im Durchlaufverfahren in das Lackbad eingetaucht, durch dieses hindurch bewegt und wieder herausgehoben werden können;
- c) einer Spannungsquelle;
- d) in dem Lackbad längs des Bewegungsweges der Werkstücke angeordneten Elektroden, die mit einem ersten Pol der Spannungsquelle verbunden sind;
- e) einer Kontaktschiene, die sich entlang des Bewegungsweges der Werkstücke erstreckt und mit dem zweiten Pol der Spannungsquelle verbunden ist;
- f) für jedes Werkstück einer Kontakteinrichtung, die mit der Kontaktschiene in Verbindung steht;
- g) mindestens einer Steuerung, mit welcher die an jedem Werkstück liegende Spannung während dessen Bewegung durch das Lackbad einstellbar ist.
- a) a paint bath;
- b) a conveyor with which the workpieces to be painted in a continuous process immersed in the paint bath, moved through it and can be lifted out again;
- c) a voltage source;
- d) in the paint bath along the path of movement of the workpieces arranged electrodes which are connected to a first pole of the voltage source;
- e) a contact rail extending along the path of movement of the workpieces and connected to the second pole of the voltage source;
- f) for each workpiece a contact means which is in communication with the contact rail;
- g) at least one controller, with which the tension lying on each workpiece during its movement through the paint bath is adjustable.
Beim Elektro-Tauchlackieren, auch elektrophoretisches Lackieren genannt, scheiden sich die Lackbestandteile im Lackbad unter dem Einfluß eines elektrischen Feldes an den Werkstücken ab. Es hat sich als zweckmäßig herausgestellt, das elektrische Feld während des Durchganges der Werkstücke durch das Lackbad nicht konstant zu halten, sondern längs des Bewegungsweges zu variieren, insbesondere mit der zurückgelegten Wegstrecke ansteigen zu lassen. Grund für diese Maßnahme ist u. a., daß die sich aufbauende Lackschicht einen elektrischen Widerstand darstellt, welcher den weiteren Aufbau der Lackschicht erschwert.In 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.
Es stellt sich somit das Problem, wie für jedes Werkstück die Spannung beim Durchgang durch das Lackbad verändert werden kann. Bei Elektro-Tauchlackiervorrichtungen der eingangs genannten Art, wie sie z. B. in der
Bei Änderungen des Werkstücks, z. B. der Länge des Werkstücks, oder bei Änderung der Eintauchkurve ändern sich die Positionen der Schnitte zwischen den Kontaktschienen-Abschnitten, so daß für eine optimale Beschichtung eine Anlagenänderung erforderich ist.For changes of the workpiece, for. As the length of the workpiece, or change the immersion curve, the positions of the cuts between the contact rail sections change, so that a system change is necessary for optimum coating.
Aufgabe der vorliegenden Erfindung ist es, eine Elektro-Tauchlackiervorrichtung der eingangs genannten Art so auszugestalten, daß sie einfacher gesteuert werden kann, flexibel ist und einen geringeren Verschleiß an den Kontakteinrichtungen verursacht.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.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß
- h) die Kontaktschiene auf ihrer gesamten Erstreckung durch das Lackbad ununterbrochen ist;
- i) zwischen jeder Kontakteinrichtung und dem zugehörigen Werkstück eine steuerbare Spannungsregeleinheit angeordnet ist;
- j) eine Positionsbestimmungseinrichtung vorgesehen ist, welche die momentane Position jedes Werkstückes bestimmt und ein entsprechendes Signal an die Steuerung abgibt;
- k) die mindestens eine Steuerung so ausgelegt ist, daß sie aus dem ihr zugeführten Signal der Positionsbestimmungseinrichtung für jedes Werkstück eine Spannung ermittelt, auf welcher das Werkstück an dieser Position liegen soll, und an die Spannungsregeleinheit des entsprechenden Werkstückes ein entsprechendes Steuersignal abgibt.
- h) the contact rail is uninterrupted over its entire extent through the coating bath;
- i) between each contact device and the associated workpiece, a controllable voltage regulation unit is arranged;
- j) a position determining means is provided which determines the instantaneous position of each workpiece and outputs a corresponding signal to the controller;
- k) the at least one controller is designed so that it determines from the signal supplied to it of the position-determining device for each workpiece a voltage on which the workpiece is to be located at this position, and to the voltage regulation unit of the corresponding workpiece emits a corresponding control signal.
Erfindungsgemäß wird also auf die abschnittsweise Unterteilung der Kontaktschiene, die mit Schienenschnitten verbunden ist, verzichtet und eine galvanisch durchgängige Kontaktschiene eingesetzt. Um nunmehr an die verschiedenen Werkstücke, die alle von derselben Kontaktschiene ihre Spannung beziehen, unterschiedliche und auch im Verlaufe der Bewegung sich verändernde Potentiale legen zu können, ist jedem Werkstück eine gesonderte Spannungsregeleinheit zugeordnet. Diese wird entsprechend der Position des Werkstückes so angesteuert, daß zu jedem Zeitpunkt das Werkstück auf dem gewünschten Potential liegt. Auf diese Weise läßt sich eine sehr viel feinfühligere Einstellung der Potentiale an den Werkstücken bewerkstelligen als bei der bekannten Einteilung der Kontaktschiene in einzelne Abschnitte. Eine Umstellung auf eine andere Art von Werkstücken ist problemlos allein durch programmiertechnische Maßnahmen möglich. Das Fehlen der Schnitte in der Kontaktschiene wirkt sich auf die Standzeit der Kontakteinrichtungen günstig aus.According to the invention is therefore on the sectional division of the contact rail, which is connected to rail sections, omitted and used a galvanically continuous contact rail. In order to be able to apply different and also in the course of the movement to the different workpieces, all of which receive their voltage from the same contact rail, varying potentials, 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.
Bei der mindesten einen Steuerung kann es sich um die Zentralsteuerung der Vorrichtung handeln. Dies kommt insbesondere dort in Frage, wo die Fördereinrichtung eine Förderkette umfasst und sich alle Werkstücke mit derselben Geschwindigkeit bewegen.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.
Moderne Vorrichtungen besitzen Fördersysteme mit sich selbständig bewegenden, jeweils mindestens ein Werkstück tragenden Wägen. Da diese Wägen im allgemeinen selbst "intelligent" sind, also eine dezentrale Steuerung aufweisen, kann diese auch für die erfindungsgemäßen Zwecke eingesetzt werden.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.
Bei einer besonders bevorzugten Ausführungsform der Erfindung weist die Positionsbestimmungseinrichtung eine Positionscodeschiene sowie für jedes Werkstück einen mit dem Werkstück mitbewegten Lesekopf auf, der den lokalen Code der Positionscodeschiene auszulesen in der Lage ist. Hierfür geeignete Positionscodeschienen sind im Handel verhältnismäßig preiswert erhältlich und besitzen eine hohe Genauigkeit.In a particularly preferred embodiment of the invention, 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.
Alternativ kann ein navigierendes System, beispielsweise ein lasergesteuertes oder GPS-basiertes System, als Positionsbestimmungseinrichtung verwendet werden.Alternatively, a navigating system, such as a laser-based or GPS-based system, may be used as the position-determining device.
Weiter ist es auch möglich, daß die Positionsbestimmungseinrichtung einen Anwesenheitssensor am Beginn des Bewegungsweges der Werkstücke durch das Lackbad und Geschwindigkeitssensoren für die Werkstücke umfasst, wobei die Steuerung so ausgelegt ist, daß sie aus den erfassten Geschwindigkeiten und der seit dem Ansprechen des Anwesenheitssensors verstrichenen Zeit für jedes Werkstück die momentane Position errechnen kann.Further, it is also possible that 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.
Statt der Geschwindigkeit und der Zeit, die seit dem Passieren des Anwesenheitssensors verstrichen ist, kann auch direkt die zurückgelegte Wegstrecke erfasst und hieraus die momentane Position jedes Werkstückes errechnet werden. Bei mit einer Transportkette arbeitenden Fördersystemen kann die Wegstreckenmessung durch Zählen der vorbeigelaufenen Kettenglieder, bei mit Rädern arbeitenden Fördersystemen durch Zählen der Umdrehungen der Räder erfolgen.Instead of the speed and the time that has elapsed since passing the presence sensor, the distance covered can also be detected directly and from this the instantaneous position of each workpiece can be calculated. When working with a transport chain conveyor systems, the distance measurement can be done by counting the passed chain links, working with wheels conveyor systems by counting the revolutions of the wheels.
Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert; die einzige Figur zeigt schematisch die Spannungsversorgung von Fahrzeugkarosserien in einem Elektro-Tauchlackierbad.An embodiment of the invention will be described below explained in more detail with reference to the drawing; the single figure shows schematically the power supply of vehicle bodies in an electro-dip.
Die Zeichnung zeigt insgesamt drei Fahrzeugkarosserien 1a, 1b, 1c, die man in ein mit Lackflüssigkeit gefülltes Lackbecken eingetaucht denken kann, wie es in der oben schon erwähnten
In dem nicht dargestellten Lackbecken sind in bekannter Weise entlang des Bewegungsweges der Fahrzeugkarosserien 1a, 1b, 1c Gegenelektroden, insbesondere Anoden, platziert, wie dies ebenfalls der
Um das für die elektrophoretische Abscheidung des Lackes erforderliche elektrische Feld zu erzeugen, müssen die Fahrzeugkarosserien 1a, 1b, 1c während ihrer Bewegung durch das Lackbad mit dem entsprechenden Pol einer Gleichspannungsquelle 20 verbunden werden, im geläufigen Falle der kataphoretischen Tauchlackierung mit deren Minuspol.In order to produce the required for the electrophoretic deposition of the paint electric field, the
Entlang des durch das Lackbecken führenden Bewegungsweges der Fahrzeugkarosserien 1a, 1b, 1c, jedoch außerhalb der Lackflüssigkeit, erstreckt sich eine Kontaktschiene 2. Diese Kontaktschiene 2 ist auf ganzer Länge nicht unterbrochen, weist somit nicht die beim Stande der Technik gebräuchlichen "Schnitte" auf, also Stellen, an denen verschiedene Abschnitte der Kontaktschiene 2 elektrisch isoliert aneinander angefügt sind. Die Kontaktschiene 2 ist mit einem Pol, bevorzugt dem Minuspol, der Gleichspannungsquelle 20 verbunden. Es genügt im allgemeinen, wenn die Gleichspannungsquelle 20 eine konstante Ausgangsspannung abgibt, die der maximalen an die Fahrzeugkarosserien 1a, 1b, 1c anzulegenden Spannung entspricht. Der andere Pol der Gleichspannungsquelle 20 ist mit den entlang des Bewegungsweges angeordneten Elektroden, bevorzugt Anoden, verbunden.Along the leading through the paint pool movement path of the
Jeder Fahrzeugkarosserie 1a, 1b, 1c ist ein Kontaktschuh 3a, 3b, 3c zugeordnet, welcher, eine elektrische Verbindung herstellend, an der Kontaktschiene 2 entlang gleitet. Die Kontaktschuhe 3a, 3b, 3c sind mit den jeweiligen Fahrzeugkarosserien 1a, 1b, 1c nicht direkt sondern über eine steuerbare Spannungsregeleinheit 4a, 4b, 4c verbunden. Die Spannungsregeleinheiten 4a, 4b, 4c sind so ausgebildet, daß sie entsprechend einem ihnen von einer Steuerung 5 über eine Leitung 6a, 6b, 6c zugeführten Steuersignal die auf der Kontaktschiene 2 liegende Spannung unverändert oder verändert, im allgemeinen verkleinert, an die entsprechende Fahrzeugkarosserie 1a, 1b, 1c weitergeben kann.Each
Parallel zur Kontaktschiene 2, ebenfalls außerhalb der Lackflüssigkeit, verläuft eine Positionscodeschiene 7. Diese trägt entlang ihrer Längserstreckung an allen Stellen einen auslesbaren Code, der für die Position der fraglichen Stelle steht. Jeder Fahrzeugkarosserie 1a, 1b, 1c ist ein Lesekopf 8a, 8b, 8c zugeordnet, der in der Lage ist, die augenblickliche Position der entsprechenden Fahrzeugkarosserie 1a, 1b, 1c von der Positionscodeschiene 7 abzulesen. Die von den Leseköpfen 8a, 8b, 8c ausgelesenen Signale werden über jeweils eine Leitung 9a, 9b, 9c der Steuerung 5 zugeführt.Parallel to the
Die Steuerung 5 enthält einen Speicher, in dem in geeigneter Weise für jede Fahrzeugkarosserie 1a, 1b, 1c oder jedenfalls für jeden Typ von Fahrzeugkarosserie 1a, 1b, 1c, der auf der Vorrichtung behandelt werden soll, abgespeichert ist, welche Spannung an welcher Stelle entlang des Bewegungsweges an die fragliche Fahrzeugkarosserie 1a, 1b, 1c anzulegen ist.The
Die oben beschriebene Elektro-Tauchlackiervorrichtung arbeitet wie folgt:The electro-dip painting apparatus described above operates as follows:
Sobald eine der Fahrzeugkarosserien 1a, 1b, 1c in den Bereich der Kontaktschiene 2 und damit in den Bereich des Lackbeckens gelangt, wird mit Hilfe des Kontaktschuhes 3a, 3b, 3c eine elektrische Verbindung zur Kontaktschiene 2 hergestellt; der jeweilige Lesekopf 8a, 8b, 8c kommt in die Nähe der Positionscodierschiene 7 und stellt die momentane Position der Fahrzeugkarosserie 1a, 1b, 1c fest. Die entsprechende Information wird nunmehr an die Steuerung 5 abgegeben, die aus ihrem Speicher die Sollspannung ausliest, die an der fraglichen Fahrzeugkarosserie 1a, 1b, 1c an der jeweiligen Stelle herrschen soll. Die Steuerung 5 gibt nunmehr an die entsprechende Spannungsregeleinheit 4a, 4b, 4c über die Leitung 6a, 6b, 6c ein entsprechendes Signal ab, welches dafür sorgt, daß die Spannungsregeleinheit 4 tatsächlich die gewünschte Spannung aus der auf der Kontaktschiene 2 herrschenden Spannung erzeugt und an die Fahrzeugkarosserie 1a, 1b, 1c legt.As soon as one of the
Dieser Vorgang wiederholt sich ständig während der Passage der Fahrzeugkarosserie 1a, 1b, 1c durch das Lackbecken. Der Lesekopf 8a, 8b, 8c übermittelt dabei entweder kontinuierlich oder nach Durchgang durch kleine Weginkremente die jeweilige Position und die Steuerung 5 regelt die an der zugehörigen Fahrzeugkarosserie 1a, 1b, 1c liegende Spannung über die Spannungsregeleinheiten 4a, 4b, 4c nach.This process is constantly repeated during the passage of the
Ersichtlich ist es auf diese Weise möglich, einen sehr präzisen Spannungsverlauf für alle Fahrzeugkarosserien 1a, 1b, 1c, die an dieselbe Kontaktschiene 2 angeschlossen sind, während ihrer Fahrt durch das Lackbecken einzustellen.Obviously, it is possible in this way to set a very precise voltage curve for all
Die Positioniereinrichtung, welche beim oben beschriebenen Ausführungsbeispiel durch die Positionscodeschiene 7 und die Leseköpfe 8a, 8b, 8c gebildet wurde, kann selbstverständlich auch durch andere Positionsbestimmungseinrichtungen ersetzt werden. Beispielsweise ist ein navigierendes System auf der Basis einer Lasersteuerung oder von GPS verwendbar. Im einfachsten Falle kann auch am Eingang der Bewegungsstrecke durch das Lackbecken ein Sensor angeordnet werden, der das Einlaufen einer Fahrzeugkarosserie meldet. Von dort aus wird die jeweilige Position der Fahrzeugkarosserie aus deren Geschwindigkeit, die ständig ermittelt und überwacht wird, und der verstrichenen Zeit errechnet.The positioning device, which was formed by the
Statt einer zentralen Steuerung können auch dezentrale Steuerungen eingesetzt werden, die den einzelnen Fahrzeugkarosserien zugeordnet sind und sich mit diesen mitbewegen.Instead of a central control and decentralized controls can be used, which are assigned to the individual vehicle bodies and move with them.
Claims (11)
- Electro-dip lacquering device witha) a lacquer bath;b) a conveying device, with which the workpieces to be lacquered can be dipped in a continuous operation into the lacquer bath, moved through this and lifted out again;c) a voltage source;d) electrodes arranged in the lacquer bath along the movement path of the workpieces, which electrodes are connected to a first pole of the voltage source;e) a contact rail, which extends along the movement path of the workpieces and is connected to the second pole of the voltage source;f) a contact device, which is in contact with the contact rail, for each workpiece;g) at least one control system, with which the voltage present at each workpiece can be set during its movement through the lacquer bath;
characterized in thath) the contact rail (2) is uninterrupted over its entire extension through the lacquer bath;i) arranged between each contact device (3a, 3b, 3c) and the related workpiece (1a, 1b, 1c) is a controllable voltage adjusting unit (4a, 4b, 4c);j) a position indicating device (7, 8a, 8b, 8c) is provided, which determines the momentary position of each workpiece (1a, 1b, 1c) and emits a corresponding signal to the at least one control system (5);k) the at least one control system (5) is designed so that from the signal supplied to it by the position indicating device (7, 8a, 8b, 8c) it determines for each workpiece (1a, 1b, 1c) a voltage at which the workpiece (1a, 1b, 1c) is to be at this position, and emits a corresponding control signal to the voltage adjusting unit (4a, 4b, 4c) of the corresponding workpiece (1a, 1b, 1c). - Electro-dip lacquering device according to claim 1, characterized in that the at least one control system is the central control system (5) of the device.
- Electro-dip lacquering device according to claim 1, characterized in that provided for each workpiece is a decentralized control system, which moves together with the workpiece.
- Electro-dip lacquering device according to one of claims 1 to 3, characterized in that the position indicating device has a position code rail (7) as well as for each workpiece (1a, 1b, 1c) a reading head (8a, 8b, 8c), which is moved together with the workpiece (1a, 1b, 1c) and is able to read the local code of the position code rail (7).
- Electro-dip lacquering device according to one of claims 1 to 3, characterized in that the position indicating device is a navigating system.
- Electro-dip lacquering device according to claim 5, characterized in that the position indicating device is a laser-controlled system.
- Electro-dip lacquering device according to claim 5, characterized in that the position indicating device is a GPS-based system.
- Electro-dip lacquering device according to one of claims 1 to 3, characterized in that the position indicating device comprises a presence sensor at the start of the movement path of the workpieces through the lacquer bath and velocity sensors for each work-piece, wherein the control system is designed so that it can calculate the momentary position for each workpiece from the velocities recorded and the time that has elapsed since the response of the presence sensor.
- Electro-dip lacquering device according to one of claims 1 to 3, characterized in that the position indicating device comprises a presence sensor at the start of the movement path of the workpieces through the lacquer bath and for each workpiece a device for recording the distance covered, wherein the control system is designed so that it can calculate the momentary position for each workpiece from the distances recorded since the response of the presence sensor.
- Electro-dip lacquering device according to claim 9, characterized in that the conveying device comprises a transport chain and that the device for recording the distance covered has a counting device for the links of the transport chain that are moving past.
- Electro-dip lacquering device according to claim 9, characterized in that the conveying device for each workpiece comprises at least one revolving wheel and that the device for recording the distance covered has a counting device for the number of revolutions of the wheel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL06776524T PL1910589T3 (en) | 2005-08-06 | 2006-07-31 | Electro dipping device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005037174A DE102005037174B3 (en) | 2005-08-06 | 2005-08-06 | Electrical immersion painting device for car bodies when has contact rail extending unbroken through paint bath |
PCT/EP2006/007561 WO2007017153A1 (en) | 2005-08-06 | 2006-07-31 | Electrodipping device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1910589A1 EP1910589A1 (en) | 2008-04-16 |
EP1910589B1 true EP1910589B1 (en) | 2008-11-12 |
Family
ID=36500488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06776524A Active EP1910589B1 (en) | 2005-08-06 | 2006-07-31 | Electro dipping device |
Country Status (8)
Country | Link |
---|---|
US (1) | US8016994B2 (en) |
EP (1) | EP1910589B1 (en) |
CN (1) | CN101238245B (en) |
DE (2) | DE102005037174B3 (en) |
ES (1) | ES2314937T3 (en) |
PL (1) | PL1910589T3 (en) |
RU (1) | RU2412286C2 (en) |
WO (1) | WO2007017153A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005036115B4 (en) * | 2005-08-01 | 2017-03-23 | Eisenmann Se | Electro-dip coating device |
US8313627B2 (en) * | 2008-01-24 | 2012-11-20 | GM Global Technology Operations LLC | Drag through electro-deposition system |
JP2010059527A (en) | 2008-09-08 | 2010-03-18 | Toyota Motor Corp | Electrodeposition coating monitoring device and method, and method of manufacturing electrodeposition coated article |
DE102010043206A1 (en) * | 2010-11-02 | 2012-05-03 | Robert Bosch Gmbh | Coating device and method for the controlled galvanic coating of an object |
CN102465329B (en) * | 2010-11-19 | 2014-04-02 | 北汽福田汽车股份有限公司 | Electrophoresis line spraying equipment and system |
JP5873634B2 (en) * | 2011-01-11 | 2016-03-01 | 富士重工業株式会社 | Electrodeposition coating apparatus and electrodeposition coating method |
CN108584354B (en) * | 2017-12-22 | 2020-03-10 | 湖北大学 | Device and method for detecting and positioning unqualified products of beat type flow production line |
CN108330527B (en) * | 2018-04-27 | 2023-11-10 | 常州市骠马工业机器人系统工程有限公司 | Electrophoresis rectification high-low voltage anode tube switching device |
CN109868497A (en) * | 2019-03-18 | 2019-06-11 | 保定莱特整流器股份有限公司 | Conducive to the distributed rectifier power-on method for improving electrodeposited paint film uniformity |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1277921A (en) * | 1968-07-20 | 1972-06-14 | Nippon Paint Co Ltd | A process for measuring the throwing power of an electrophoretic coating solution |
DE3005810A1 (en) | 1980-02-16 | 1981-08-27 | Akzo Gmbh, 5600 Wuppertal | Measuring throwing power of electrophoresis paint coating - using test plate and mobile sensor electrode |
JPH0768639B2 (en) * | 1986-12-10 | 1995-07-26 | トヨタ自動車株式会社 | Electrodeposition coating method |
CA1322737C (en) * | 1987-08-12 | 1993-10-05 | Akito Inoue | Electrodeposition coating system |
ES2101466T3 (en) * | 1993-10-22 | 1997-07-01 | Renault | INSTALLATION OF TREATMENT OF SURFACES BY CATALPHORESIS OF METAL PARTS, MAINLY BODIES OF AUTOMOBILE VEHICLES. |
DE19942556C2 (en) * | 1999-09-07 | 2003-04-30 | Eisenmann Kg Maschbau | Elektrotauchlackiervorrichtung |
DE10326605A1 (en) | 2003-06-13 | 2005-01-05 | Daimlerchrysler Ag | Operating method for a cathodic paint dipping plant, especially for coating auto bodies, wherein the current between the cathode car body and distributed anodes is temporally controlled during the process to ensure even coating |
CN2632100Y (en) * | 2003-06-26 | 2004-08-11 | 创宇科技工业股份有限公司 | Electroplating coating pylons apparatus |
CN2647874Y (en) * | 2003-08-26 | 2004-10-13 | 上海市机电设计研究院 | Coating assembling connecting electricity apparatus for electrophoresis |
-
2005
- 2005-08-06 DE DE102005037174A patent/DE102005037174B3/en not_active Expired - Fee Related
-
2006
- 2006-07-31 RU RU2008108300/02A patent/RU2412286C2/en not_active IP Right Cessation
- 2006-07-31 CN CN2006800288845A patent/CN101238245B/en active Active
- 2006-07-31 DE DE502006002089T patent/DE502006002089D1/en active Active
- 2006-07-31 ES ES06776524T patent/ES2314937T3/en active Active
- 2006-07-31 PL PL06776524T patent/PL1910589T3/en unknown
- 2006-07-31 EP EP06776524A patent/EP1910589B1/en active Active
- 2006-07-31 WO PCT/EP2006/007561 patent/WO2007017153A1/en active Application Filing
- 2006-07-31 US US11/997,867 patent/US8016994B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2314937T3 (en) | 2009-03-16 |
DE502006002089D1 (en) | 2008-12-24 |
US8016994B2 (en) | 2011-09-13 |
EP1910589A1 (en) | 2008-04-16 |
RU2412286C2 (en) | 2011-02-20 |
US20080271993A1 (en) | 2008-11-06 |
PL1910589T3 (en) | 2009-04-30 |
DE102005037174B3 (en) | 2006-06-14 |
RU2008108300A (en) | 2009-09-20 |
CN101238245A (en) | 2008-08-06 |
CN101238245B (en) | 2010-09-15 |
WO2007017153A1 (en) | 2007-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1910589B1 (en) | Electro dipping device | |
EP2735628B1 (en) | Electrophoretic coating system | |
DE3701468A1 (en) | LUBRICANT MEASURING DEVICE | |
DE4133882A1 (en) | Automatic vehicle guidance system - allows vehicle to accurately follow path taken by lead vehicle | |
DE3532931A1 (en) | Hydraulic drive device | |
EP0899020B1 (en) | Method for detecting the presence of a workpiece in an electrostatic coating installation and electrostatic coating installation | |
DE2741728A1 (en) | METHOD FOR IDENTIFYING AND OPTIMIZING MECHANICAL SIZES | |
DE10325656C5 (en) | Electrophoretic dip painting system | |
DE3445850C2 (en) | ||
DE19942556C2 (en) | Elektrotauchlackiervorrichtung | |
DE2114608A1 (en) | Automated transportation and traffic system | |
EP1749903B1 (en) | Electrophoretic lacquering plant | |
DE3230040A1 (en) | METHOD AND DEVICE FOR ELECTROEROSIVE CONTINUOUS WIRE MACHINING OF A CONDUCTIVE WORKPIECE | |
DE2752167A1 (en) | DEVICE FOR GUIDING A VEHICLE | |
DE102004003456A1 (en) | Method and system for determining the thickness of a lacquer layer | |
DE3445851C2 (en) | ||
AT502734B1 (en) | METHOD FOR CALIBRATING A MEASURING ARRANGEMENT FOR DETERMINING THE WHEEL DIAMETER FROM LONG-TERM 2 PARALLEL RAILS MOVING WHEELS OF RAIL VEHICLES | |
DE2709598C2 (en) | Method for controlling the distance between adjacent signal track segments when cutting a spiral signal track into a plate-shaped signal carrier | |
DE3425928C2 (en) | ||
WO1996028773A1 (en) | Method of controlling a production system | |
DE2559369A1 (en) | Simultaneous flash welding system - controls approach rate by welding current density converted to voltage | |
DE1784140B2 (en) | Method and device for the lateral alignment of tracks | |
EP1020709A2 (en) | Method and device for measuring the position of a metal strip | |
DE3151448A1 (en) | Device for controlling the thickness of coatings on metal strips | |
DE2065445C3 (en) | Mobile machine for performing track work at intervals |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20080112 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CZ DE ES FR IT PL |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): CZ DE ES FR IT PL |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CZ DE ES FR IT PL |
|
REF | Corresponds to: |
Ref document number: 502006002089 Country of ref document: DE Date of ref document: 20081224 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2314937 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: PL Ref legal event code: T3 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20090813 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502006002089 Country of ref document: DE Owner name: EISENMANN AG, DE Free format text: FORMER OWNER: EISENMANN ANLAGENBAU GMBH & CO. KG, 71032 BOEBLINGEN, DE Effective date: 20110513 Ref country code: DE Ref legal event code: R081 Ref document number: 502006002089 Country of ref document: DE Owner name: EISENMANN SE, DE Free format text: FORMER OWNER: EISENMANN ANLAGENBAU GMBH & CO. KG, 71032 BOEBLINGEN, DE Effective date: 20110513 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP Owner name: EISENMANN AG, DE Effective date: 20120903 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: PC2A Owner name: EISENMANN AG Effective date: 20130710 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 502006002089 Country of ref document: DE Representative=s name: OSTERTAG & PARTNER, PATENTANWAELTE MBB, DE Ref country code: DE Ref legal event code: R081 Ref document number: 502006002089 Country of ref document: DE Owner name: EISENMANN SE, DE Free format text: FORMER OWNER: EISENMANN AG, 71032 BOEBLINGEN, DE |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20160520 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150731 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: RN Effective date: 20160729 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: FC Effective date: 20161017 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150731 |
|
PGRI | Patent reinstated in contracting state [announced from national office to epo] |
Ref country code: FR Effective date: 20161017 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180731 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20200722 Year of fee payment: 15 Ref country code: ES Payment date: 20200922 Year of fee payment: 15 Ref country code: DE Payment date: 20200721 Year of fee payment: 15 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20200724 Year of fee payment: 15 Ref country code: PL Payment date: 20200724 Year of fee payment: 15 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502006002089 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20220201 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210731 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20220927 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210801 |