EP3015573B1 - System for electroplating a band - Google Patents

System for electroplating a band Download PDF

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Publication number
EP3015573B1
EP3015573B1 EP14191387.1A EP14191387A EP3015573B1 EP 3015573 B1 EP3015573 B1 EP 3015573B1 EP 14191387 A EP14191387 A EP 14191387A EP 3015573 B1 EP3015573 B1 EP 3015573B1
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EP
European Patent Office
Prior art keywords
electroplating
station
strip
drive
baths
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.)
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Application number
EP14191387.1A
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German (de)
French (fr)
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EP3015573A1 (en
Inventor
Falko Eidner
Ralf Kretschmer
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.)
FRANZ BINDER GmbH AND CO ELEKTRISCHE BAUELEMENTE KG
Original Assignee
FRANZ BINDER GmbH AND CO ELEKTRISCHE BAUELEMENTE KG
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Publication date
Application filed by FRANZ BINDER GmbH AND CO ELEKTRISCHE BAUELEMENTE KG filed Critical FRANZ BINDER GmbH AND CO ELEKTRISCHE BAUELEMENTE KG
Priority to EP14191387.1A priority Critical patent/EP3015573B1/en
Priority to US14/928,150 priority patent/US20160122892A1/en
Priority to CN201510727569.2A priority patent/CN105568338A/en
Publication of EP3015573A1 publication Critical patent/EP3015573A1/en
Application granted granted Critical
Publication of EP3015573B1 publication Critical patent/EP3015573B1/en
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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
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • C25D7/0664—Isolating rolls
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/12—Process control or regulation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • 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
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • C25D7/0621—In horizontal cells
    • 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
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • C25D7/0635—In radial cells
    • 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
    • C25D7/06—Wires; Strips; Foils
    • C25D7/0614—Strips or foils
    • C25D7/0671—Selective plating

Definitions

  • the invention relates to a system for the continuous galvanizing of at least one area of a strip with an unwinding station from which the ungalvanized strip is unwound and fed to a first galvanizing station and with a driven winding station in which the galvanized strip is wound up, as well as with a control device.
  • electroplating bath is generally intended to mean any bath that may be necessary for an electroplating process.
  • pre-treatment baths electrolyte cells and the like.
  • jet plating device From the US 4,036,725 A so-called jet plating device is known in which the coating is carried out using a jet.
  • the jets are directed radially outwards and emerge from “fluid jet members”, each of which has a nozzle.
  • the nozzles are stored in a stationary central device. Two “rim members” rotate around this stationary device, between which a gap remains through which the liquid jets hit the band on the outside of both "rim members” and covering the gap. In this way, the strip of the tape covering the gap is coated
  • a major advantage of the invention is the relatively small space requirement, since the bathrooms are no longer arranged in a row, but are essentially circular to optimize space.
  • a typical system according to the invention has a space requirement of approximately 9m x 9m.
  • Another advantage is the low waste. This is significantly lower or even eliminated completely, because when the band is fed to the holding device and is clamped between the outer edge and the drive band, it can be conveyed through the electroplating baths.
  • the drive belt fulfills two functions, namely that of the drive and a holding function for holding the belt.
  • the electroplating baths arranged below the mounting device are easily accessible and can be replaced very easily.
  • the unwinding station is usually powered. Then the drive speed of the electroplating station and the unwinding should match exactly.
  • the speed of the drive of the unwinding station is adapted to the drive speed of the holding device via a first speed adjustment device.
  • the first speed adjustment device can be designed in such a way that it has a laterally movable roller over which the unwound tape runs and which keeps the tape in tension.
  • the deflection is recorded by the control device.
  • the control device can then adapt the drive of the unwinding station by controlling it to a target deflection.
  • the first electroplating station has a pre-stressed feed roller for correctly feeding the strip between the outer edge of the holding device and the drive belt.
  • the winding station also has a speed adjustment device for adapting the drive of the winding station to the drive speed of the holding device.
  • the system according to the invention can be expanded in the simplest way by simply providing a second or even third electroplating station as required.
  • the second and subsequent electroplating stations are constructed identically to the first.
  • the belt is then guided from the first to the second and, if necessary, to the next station.
  • the second galvanizing station has a further speed adjustment device, to which a feed roller of the second galvanizing station is assigned and which is kept biased, so that a change in the deflection is a measure of a speed difference between the drives of the two galvanizing stations, which is determined by the control device is recorded and adjusted.
  • the drive speed of the second electroplating station is thus regulated to the speed of the first station.
  • each additional electroplating station that is used is regulated according to its predecessor, i.e. the station that is upstream. Overall, the drive speed is then determined by the first station.
  • a very space-saving and advantageous arrangement according to the invention results when the electroplating baths of an electroplating station are arranged hexagonally and form five sides of a hexagon. Then the available space can be optimally used and the bathrooms can still be replaced very easily.
  • the belt is fed in and out via the sixth side of the hexagon.
  • every electroplating bath has an electrical connection and an electrical connection via the electrical connection Coding characterizing the respective electroplating bath can be transmitted to the control device. All information about the bathroom is then available directly in the control device and a specific program can be used immediately.
  • a system 10 for the continuous electroplating of a strip 12 comprises an unwinding station 14, from which the ungalvanized strip 12 is unwound and fed to a first electroplating station 16.
  • the system 10 further comprises a driven winding station 18, in which the galvanized strip 12 is wound, and a control device 20.
  • the unwinding station 14 has a supply roll 14-1 on which the strip 12 to be galvanized is stored, a guide roller 14-2 for correctly guiding the strip 12 and an unwinding drive 14-3.
  • the first electroplating station 16 comprises a circular, horizontally lying holding device 22.
  • the holding device 22 consists of a metal ring 24, which is held via holding rollers 26.
  • the ring 24 can rotate in the horizontal plane about a vertical axis.
  • the ring 24 is made of stainless steel, for example.
  • the ring 24 is driven by an endless drive belt 30.
  • the drive belt 30 lies against the outer edge 28 over part of the circumference and is returned via guide rollers 32 and a drive roller 34.
  • the drive roller 34 is driven by a ring drive 35 so that the ring 24 of the holding device 22 rotates.
  • the strip 12 to be galvanized is shown in a side view Fig. 2 shown.
  • the band 12 can, for example, be a stamped band which has connected parts 36, eg plug pins, arranged in a row, one end 38 of which is to be galvanized and which are then separated by punching in a later different process.
  • the band 12 should therefore be galvanized at least in the area that has the ends 38 of the parts 36.
  • the band 12 can be held in the other end region 39
  • the band 12 is captured by a pre-tensioned guide roller 40 and guided between the outer edge 28 of the ring 24 and the drive band 30, so that it is held non-slip and is carried along with the rotating ring 24.
  • the band 12 is inserted in such a way that only its upper region is gripped by the outer edge 28 and drive band 30 and the region to be galvanized (ends 38) protrudes downwards.
  • the metal ring 24 makes electrical contact with the band 12 so that it can also be galvanized.
  • the ring 24 itself is electrically contacted via sliding contacts.
  • Electroplating bath 42 generally refers to any bath that may be necessary for an electroplating process. These are pre-treatment baths, electrolyte cells and the like.
  • These bathrooms 42 have a top view ( Fig. 1 ) in the system according to the invention a trapezoidal shape, so that when lined up they form a hexagonal shape and each bath 42 forms one side of the hexagon. This means that the part-circular space below the holding device 22 is optimally utilized. This means that five electroplating baths can be arranged in one electroplating station. The band 12 is inserted over the remaining sixth side of the hexagon as described and also carried out. The belt 12 is thus continuously guided through each of the five baths 42 and treated there accordingly.
  • Fig. 3 shows a perspective view of such an electroplating bath 42.
  • the bath has a central basin 42-1, in which z. B. electrodes are located and through which the band 12 is conveyed in order to be galvanized.
  • the bath 42 also has an overflow basin 42-2 for collecting the electrolyte, a pump system 42-3 and an electrical connection, not shown. If necessary, the bath 42 may include additional components such as heaters, rectifiers, and the like. All components of an electroplating bath 42 are stored on a frame 42-4 that rests on rollers 42-5 and thus forms a carriage.
  • At least the basins 42-1 and 42-2 can be adjusted in height in order to be able to move the electroplating bath 42 out of the electroplating station 16 after lowering and in this way to be able to easily replace the baths 42.
  • a galvanizing system 10 according to the invention can therefore be converted very quickly and easily to various galvanizing processes.
  • the strip 12 is taken out of the electroplating station 16 via a further guide roller 44 and fed to the winding station 18.
  • the winding station 18 is constructed similarly to the unwinding station 14 and has a roller 18-1 on which the band 12 is wound, a guide roller 18-2 for correctly feeding the band 12 and a winding drive 18-3.
  • a first speed adjustment device is provided for synchronization between the unwinding station 14 and the electroplating station 16. This works as follows.
  • the guide roller 14-2 is mounted movably, namely laterally deflectable and prestressed, which is indicated by the double arrow 50.
  • the deflection of the guide roller 14-2 or an arm on which the guide roller 14-2 can be mounted is detected by the control device 20, which is represented by the connecting line 52.
  • the control device 20 now regulates the unwinding drive 14-3 so that the deflection always corresponds to a target deflection.
  • the unwinding drive 14-2 is thus controlled to the ring drive. This specifies the conveying speed.
  • the band 12 then always has the same, correct tension.
  • the winding drive 18-3 is regulated via the control device 20 with a second speed adjustment device with the aid of the guide roller 18-2, the deflection of which is also recorded.
  • the control device 20 is housed in a control cabinet, on the touch panel of which all parameters such as temperatures, speeds and currents can be displayed or changed.
  • the rectifiers of all cells supply current and voltage.
  • the speed of the system is infinitely adjustable from 0 to a maximum speed.
  • Fig. 4 a further embodiment of the system according to the invention is shown.
  • the five baths 42 of the first electroplating station 16 may not be enough for certain electroplating tasks.
  • the system can be expanded in the simplest way by inserting a further electroplating station 16-2 between the first electroplating station 16 and the winding station 18.
  • the second electroplating station 16-2 is constructed identically to the first.
  • the tape 12 After leaving the first station 16 (after the guide roller 44), the tape 12 is fed to the guide roller 40-2 of the second station 16-2. As in the first station, the strip 12 is guided by means of the ring 24-2 through the electroplating baths 42-2 of the second station 16-2 and finally fed via the guide roller 44-2 to the winding station 18 and wound up there.
  • the invention has the principle that the relevant speed is that of the ring drive 35 of the first station 16.
  • the entire control is again carried out by the control device 20.
  • the control via the first speed adjustment device between the unwinding station and the first electroplating station 16 remains unchanged.
  • the ring drive 35-2 of the second electroplating station 16-2 is controlled in such a way that the deflection (double arrow 60) of the guide roller 40-2, which is also mounted in a deflectable prestressed manner, is detected and fed to the control device 20 as a controlled variable, so that the ring drive 35-2 is so It is regulated that there is a target deflection of the guide roller 40-2.
  • the control between the second electroplating station 16-2 and the winding station 18 takes place as in the first exemplary embodiment Fig. 1 the control between the first electroplating station 16 and the winding station 18.
  • the system 10 can be expanded in the same way by a third or even more electroplating stations. It makes sense that the drive speed of each additional electroplating station that is used is regulated according to its predecessor, i.e. the station that is upstream. Overall, the drive speed is then determined by the first station.
  • a further galvanizing station can be useful, for example, if the strip 12 is not just galvanized in certain areas (at the ends 38) but completely should. Then the end region 38 is galvanized in the first galvanizing station 16 and the band 12 is held in the region 39. Between the first and second galvanizing stations, the band 12 is turned over, i.e. twisted by 180, so that it is inserted the other way around in the second galvanizing station and is held there with the already galvanized end regions 38. The area 39 that was not galvanized in the first galvanizing station 16 now protrudes downwards and can be galvanized in the second galvanizing station 16-2.
  • a code identifying the respective electroplating bath can be transmitted to the control device 20 via the electrical connection. All information about the bathroom is then available directly to the control device 20.

Description

Die Erfindung betrifft eine Anlage zum kontinuierlichen Galvanisieren wenigstens eines Bereiches eines Bandes mit einer Abwickelstation, von der das ungalvanisierte Band abgewickelt und einer ersten Galvanisierstation zugeführt wird und mit einer angetriebenen Aufwickelstation, in der das galvanisierte Band aufgewickelt wird, sowie mit einer Steuerungsvorrichtung.The invention relates to a system for the continuous galvanizing of at least one area of a strip with an unwinding station from which the ungalvanized strip is unwound and fed to a first galvanizing station and with a driven winding station in which the galvanized strip is wound up, as well as with a control device.

Bekannte Bandanlagen, die kontinuierlich arbeiten, bei denen also das Band kontinuierlich gefördert wird und während des Förderns der Bereich, der frei hängt, galvanisiert wird, weisen einen linearen Aufbau auf. In einer Abwickelstation wird das Band abgewickelt und dann mittels einer geeigneten Förderanlage in gerader Linie durch die Galvanikbäder gefördert und schließlich in einer Aufwickelstation wieder aufgewickelt. In der Regel erfolgt der Antrieb in der Aufwickelstation, die durch Zug an dem Band den Vortrieb bewirkt. Nachteilig an derartigen Anlagen ist die große Länge, was entsprechend große Werkshallen notwendig macht. Weiter nachteilig ist, dass die Führung des Bandes meist nur punktuell und damit auch unsauber erfolgt, was eine sehr exakt lokalisierte Galvanisierung erschwert. Die einzelnen Galvanikbäder in einer linearen Anordnung sind nur schlecht austauschbar. Da der Antrieb durch die Aufwickelstation erfolgt ist der Verschnitt sehr groß, nämlich mindestens eine volle Länge der gesamten Anlage. Das macht das Galvanisieren insbesondere von Bändern mit kurzen Gesamtlängen kostenträchtig.Known belt systems that work continuously, i.e. in which the belt is continuously conveyed and the area that hangs freely is galvanized during conveying, have a linear structure. The strip is unwound in an unwinding station and then conveyed in a straight line through the electroplating baths using a suitable conveyor system and finally wound up again in a winding station. As a rule, the drive takes place in the winding station, which causes propulsion by pulling on the belt. The disadvantage of such systems is their great length, which requires correspondingly large workshops. A further disadvantage is that the strip is usually only guided selectively and therefore uncleanly, which makes very precisely localized electroplating more difficult. The individual electroplating baths in a linear arrangement are difficult to replace. Since the drive is provided by the winding station, the waste is very large, namely at least a full length of the entire system. This makes electroplating, particularly of strips with short overall lengths, expensive.

Aus der EP 0 070 694 A1 ist eine Galvanisieranlage für Einzelwerkstücke bekannt. Die einzelnen Werkstücke werden zwischen einem Rad und einem außen am Rad anliegenden Endlosband eingeklemmt und durch auf dem Umfang liegende Galvanikbäder gefördert. Eine solche Anlage ist zwar platzsparend, allerdings können keine Bänder damit galvanisiert werden. Außerdem können nur wenige und kleinere Galvanikbäder eingesetzt werden, da der Umfang begrenzt ist. Es eignet sich daher nur für kleine Werkstücke, die mit wenig Bädern galvanisiert werden können.From the EP 0 070 694 A1 A galvanizing system for individual workpieces is known. The individual workpieces are clamped between a wheel and an endless belt on the outside of the wheel and conveyed through electroplating baths on the circumference. Although such a system saves space, it cannot be used to galvanize strips. In addition, only a few and smaller electroplating baths can be used because the scope is limited. It is therefore only suitable for small workpieces that can be galvanized with few baths.

Mit dem Begriff Galvanikbad soll in dieser Anmeldung allgemein jedes Bad gemeint sein, dass für einen Galvanikprozess notwendig sein kann. Das sind Vorbehandlungsbäder, Elektrolytzellen und dergleichen mehr. Aus der US 4,036,725 ist eine sogenannte Jet-Plating Vorrichtung bekannt, bei der die Beschichtung mittels eines Strahls ("Jet") erfolgt. Die Jets sind dabei radial nach außen gerichtet und treten aus "fluid jet members" aus, die jeweils eine Düse aufweisen. Die Düsen sind in einer stationären zentralen Vorrichtung gelagert. Um diese stationäre Vorrichtung rotieren zwei "rim members", zwischen denen ein Spalt bleibt, durch den die Flüssigkeitsstrahlen auf das außen an beiden "rim members" anliegende und den Spalt überdeckende Band treffen. Auf diese Art wird der den Spalt abdeckende Streifen des Bandes beschichtetIn this application, the term electroplating bath is generally intended to mean any bath that may be necessary for an electroplating process. These are pre-treatment baths, electrolyte cells and the like. From the US 4,036,725 A so-called jet plating device is known in which the coating is carried out using a jet. The jets are directed radially outwards and emerge from “fluid jet members”, each of which has a nozzle. The nozzles are stored in a stationary central device. Two "rim members" rotate around this stationary device, between which a gap remains through which the liquid jets hit the band on the outside of both "rim members" and covering the gap. In this way, the strip of the tape covering the gap is coated

Ausgehend von diesem Stand der Technik ist es Aufgabe der Erfindung eine verbesserte Galvanisieranlage bereitzustellen, mit der Bänder in Galvanikbädern kontinuierlich galvanisiert werden können.Based on this prior art, it is the object of the invention to provide an improved galvanizing system with which strips can be continuously galvanized in galvanizing baths.

Diese Aufgabe wird gelöst durch eine Anlage mit den Merkmalen des Anspruchs 1.This task is solved by a system with the features of claim 1.

Die erfindungsgemäße Anlage zum kontinuierlichen Galvanisieren eines Bereiches eines Bandes umfasst eine Abwickelstation, von der das ungalvanisierte Band abgewickelt und einer ersten Galvanisierstation zugeführt wird und eine angetriebene Aufwickelstation, in der das galvanisierte Band aufgewickelt wird, sowie eine Steuerungsvorrichtung. Erfindungsgemäß umfasst die erste Galvanisierstation: eine kreisförmige, horizontal liegende Halterungseinrichtung, die um eine vertikale Achse rotiert und an dessen Aussenrand das Band gehalten ist, wobei der zu galvanisierende Bereich nach unten übersteht,

  • ein endloses Antriebsband, das über einen Teil des Umfangs an dem Aussenrand anliegt und das Band zwischen dem Aussenrand und dem Antriebsband rutschfest hält und dadurch in Umfangsrichtung fördert,
  • einen Antrieb zum Rotieren der Halterungseinrichtung,
  • Galvanikbäder, die über einen Teil des Umfanges der Halterung verteilt und unterhalb der Halterungseinrichtung angeordnet sind, so dass der zu galvanisierende Bereich des Bandes durch die Bäder hindurch gefördert und dort galvanisierbar ist, wobei die Abwickelstation antreibbar ist und der Antrieb der Abwickelstation über eine erste Geschwindigkeitsanpassungvorrichtung in seiner Geschwindigkeit der Antriebsgeschwindigkeit der Halterungseinrichtung anpassbar ist, und ist dadurch gekennzeichnet, dass die Galvanikbäder ein zentrales Becken aufweisen, in dem sich Elektroden befinden und durch das das Band gefördert wird um galvanisiert zu werden, sowie dass die Bäder ein Überlaufbecken zum Auffangen des Elektrolyten, ein Pumpsystem und einen elektrischen Anschluss aufweist, wobei alle Komponenten des Galvanikbades auf einem Gestell gelagert sind, dass auf Rollen ruht und somit einen Wagen bildet, wobei zumindest die Becken und in der Höhe derart verstellbar sind, um das nach einem Absenken das Galvanikbad aus der Galvanisierstation ausfahrbar ist und auf diese Weise die Bäder einfach austauschbar sind, und die Galvanikbäder eine Trapezform haben, so dass sie aneinandergereiht eine hexagonale Form ergeben und jedes Bad eine Seite des Hexagons bildet, wobei die Galvanikbäder in einer Galvanisierstation fünf Seiten eines Hexagons bilden und über die sechste Seite die Zu- und Abfuhr des Bandes erfolgt.
The system according to the invention for continuously galvanizing an area of a strip comprises an unwinding station from which the ungalvanized strip is unwound and fed to a first galvanizing station and a driven winding station in which the galvanized strip is wound up, as well as a control device. According to the invention, the first galvanizing station comprises: a circular, horizontally lying holding device which rotates about a vertical axis and on the outer edge of which the strip is held, with the area to be galvanized projecting downwards,
  • an endless drive belt which rests on the outer edge over part of the circumference and keeps the belt non-slip between the outer edge and the drive belt and thereby conveys it in the circumferential direction,
  • a drive for rotating the holding device,
  • Electroplating baths, which are distributed over part of the circumference of the holder and arranged below the holder device, so that the area of the strip to be galvanized is conveyed through the baths and can be galvanized there, the unwinding station being drivable and the drive of the unwinding station via a first speed adjustment device its speed can be adjusted to the drive speed of the holding device, and is characterized in that the electroplating baths have a central basin in which there are electrodes and through which the strip is conveyed in order to be galvanized, and that the baths have an overflow basin for collecting the electrolyte , a pump system and an electrical connection, with all components of the electroplating bath being stored on a frame that rests on rollers and thus forms a cart, with at least the basins and are adjustable in height in such a way that the electroplating bath is removed after lowering the galvanizing station can be extended and in this way the baths are easily interchangeable, and the galvanizing baths have a trapezoidal shape, so that when lined up they form a hexagonal shape and each bath forms one side of the hexagon, with the galvanizing baths in a galvanizing station forming five sides of a hexagon and The feed and removal of the tape takes place via the sixth side.

Ein wesentlicher Vorteile der Erfindung ist der relativ geringe Platzbedarf, da die Bäder nicht mehr in einer Reihe angeordnet sind, sondern platzoptimiert im Wesentlichen kreisförmig. Eine typische erfindungsgemäße Anlage hat einen Platzbedarf von ca. 9m x 9m.A major advantage of the invention is the relatively small space requirement, since the bathrooms are no longer arranged in a row, but are essentially circular to optimize space. A typical system according to the invention has a space requirement of approximately 9m x 9m.

Ein weiterer Vorteil ist der geringe Verschnitt. Der ist erheblich geringer oder entfällt sogar völlig, denn wenn das Band der Halterungseinrichtung zugeführt ist und zwischen Außenrand und Antriebsband festgeklemmt ist, kann es durch die Galvanikbäder gefördert werden.Another advantage is the low waste. This is significantly lower or even eliminated completely, because when the band is fed to the holding device and is clamped between the outer edge and the drive band, it can be conveyed through the electroplating baths.

Hierbei zeigt sich ein weiterer Vorteil, nämlich dass das Band auf seiner vollen Länge geführt ist und der Antrieb über die ganze Länge des Teils Bandes erfolgt, der sich über den Bädern befindet, also von der Halterungseinrichtung festgeklemmt ist. Das Antriebsband erfüllt dabei zwei Funktionen, nämlich den des Antriebs und eine Haltefunktion zum Halten des Bandes.This shows another advantage, namely that the band is guided over its full length and the drive takes place over the entire length of the part of the band that is located above the baths, i.e. is clamped by the holding device. The drive belt fulfills two functions, namely that of the drive and a holding function for holding the belt.

Die unterhalb der Halterungseinrichtung angeordneten Galvanikbäder sind leicht zugänglich und können sehr leicht ausgetauscht werden.The electroplating baths arranged below the mounting device are easily accessible and can be replaced very easily.

Da die zu galvanisierenden Bänder recht lang und entsprechend schwer sind, ist in der Regel die Abwickelstation angetrieben. Dann sollten die Antriebsgeschwindigkeit der Galvanisierstation und des Abwickelns genau passen. Dazu ist nach der Erfindung vorgesehen, dass der Antrieb der Abwickelstation über eine erste Geschwindigkeitsanpassungvorrichtung in seiner Geschwindigkeit der Antriebsgeschwindigkeit der Halterungseinrichtung angepasst ist.Since the strips to be galvanized are quite long and correspondingly heavy, the unwinding station is usually powered. Then the drive speed of the electroplating station and the unwinding should match exactly. For this purpose, it is provided according to the invention that the speed of the drive of the unwinding station is adapted to the drive speed of the holding device via a first speed adjustment device.

Die erste Geschwindigkeitsanpassungvorrichtung kann dabei so ausgebildet sein, dass sie eine seitlich beweglich angeordnete Rolle aufweist, über die das abgewickelte Band läuft und die das Band in Spannung hält. Die Auslenkung wird von der Steuerungsvorrichtung erfasst. Dann kann die Steuerungsvorrichtung den Antrieb der Abwickelstation anpassen, in dem auf eine Soll-Auslenkung geregelt wird.The first speed adjustment device can be designed in such a way that it has a laterally movable roller over which the unwound tape runs and which keeps the tape in tension. The deflection is recorded by the control device. The control device can then adapt the drive of the unwinding station by controlling it to a target deflection.

In Weiterbildung der Erfindung weist die erste Galvanisierstation eine vorgespannt angeordnete Zuführrolle zum korrekten Zuführen des Bandes zwischen den Aussenrand der Halterungseinrichtung und dem Antriebsband auf.In a further development of the invention, the first electroplating station has a pre-stressed feed roller for correctly feeding the strip between the outer edge of the holding device and the drive belt.

Aus dem gleichen Grund warum die Abwickelstation eine Antriebsgeschwindigkeitsregelung aufweist, weist in Weiterbildung der Erfindung auch die Aufwickelstation eine Geschwindigkeitsanpassungsvorrichtung auf, zur Anpassung des Antriebs der Aufwickelstation an die Antriebsgeschwindigkeit der Halterungseinrichtung.For the same reason why the unwinding station has a drive speed control, in a further development of the invention the winding station also has a speed adjustment device for adapting the drive of the winding station to the drive speed of the holding device.

Für bestimmte Galvanisieraufgaben sind fünf Bäder einer Galvanisierstation häufig zu wenig. Die erfindungsgemäße Anlage ist in einfachster Weise erweiterbar, indem einfach je nach Bedarf eine zweite oder sogar dritte Galvanisierstation bereitgestellt wird. Die zweite und weitere Galvanisierstationen sind identisch zur ersten aufgebaut. Das Band wird dann von der ersten zur zweiten und ggf. zur weiteren Station geführt.For certain electroplating tasks, five baths in an electroplating station are often not enough. The system according to the invention can be expanded in the simplest way by simply providing a second or even third electroplating station as required. The second and subsequent electroplating stations are constructed identically to the first. The belt is then guided from the first to the second and, if necessary, to the next station.

Dazu ist es vorteilhaft, wenn die zweite Galvanisierstation eine weitere Geschwindigkeitsanpassungsvorrichtung aufweist, der eine Zuführrolle der zweiten Galvanisierstation zugeordnet ist und die vorgespannt gehalten ist, so dass eine Änderung der Auslenkung ein Maß für einen Geschwindigkeitsunterschied der Antriebe der beiden Galvanisierstationen ist, der von der Steuerungsvorrichtung erfasst und ausgeregelt wird. Somit wird die Antriebsgeschwindigkeit der zweiten Galvanisierstation auf die Geschwindigkeit der ersten Station geregelt.For this purpose, it is advantageous if the second galvanizing station has a further speed adjustment device, to which a feed roller of the second galvanizing station is assigned and which is kept biased, so that a change in the deflection is a measure of a speed difference between the drives of the two galvanizing stations, which is determined by the control device is recorded and adjusted. The drive speed of the second electroplating station is thus regulated to the speed of the first station.

Sinnvollerweise wird die Antriebsgeschwindigkeit jeder weiteren Galvanisierstation, die eingesetzt wird, jeweils nach ihrem Vorgänger geregelt, also der Station, die stromaufwärts liegt. Insgesamt wird dann die Antriebsgeschwindigkeit von der ersten Station bestimmt.It makes sense that the drive speed of each additional electroplating station that is used is regulated according to its predecessor, i.e. the station that is upstream. Overall, the drive speed is then determined by the first station.

Eine sehr platzsparende und vorteilhafte erfindungsgemäße Anordnung ergibt sich, wenn die Galvanikbäder einer Galvanisierstation hexagonartig angeordnet sind und fünf Seiten eines Hexagons bilden. Dann kann der zur Verfügung stehende Raum optimal ausgenutzt werden und die Bäder immer noch sehr einfach ausgetauscht werden. Über die sechste Seite des Hexagons erfolgt die Zu- und Abfuhr des Bandes.A very space-saving and advantageous arrangement according to the invention results when the electroplating baths of an electroplating station are arranged hexagonally and form five sides of a hexagon. Then the available space can be optimally used and the bathrooms can still be replaced very easily. The belt is fed in and out via the sixth side of the hexagon.

Für einen einfachen Austausch ist es sehr vorteilhaft, wenn jedes Galvanikbad einen elektrischen Anschluss aufweist und über den elektrischen Anschluss eine das jeweilige Galvanikbad kennzeichnende Kodierung an die Steuerungsvorrichtung übermittelbar ist. Dann liegt alle Information über das Bad unmittelbar in der Steuerungsvorrichtung vor und es kann unmittelbar mit einem bestimmten Programm gefahren werden.For easy replacement, it is very advantageous if every electroplating bath has an electrical connection and an electrical connection via the electrical connection Coding characterizing the respective electroplating bath can be transmitted to the control device. All information about the bathroom is then available directly in the control device and a specific program can be used immediately.

Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnung im Einzelnen erläutert. In der Zeichnung zeigen:

  • Fig. 1 eine stark schematisierte Darstellung einer erfindungsgemäßen Anlage in der Draufsicht;
  • Fig. 2 eine Ansicht eines Beispiels eines zu galvanisierenden Bandes;
  • Fig. 3 eine perspektivische Ansicht eines Galvanikbades der erfindungsgemäßen Anlage;
  • Fig. 4 eine schematische Darstellung wie Fig. 1 einer Ausführungsform der Anlage.
The invention is explained in detail below using exemplary embodiments with reference to the drawing. Show in the drawing:
  • Fig. 1 a highly schematic representation of a system according to the invention in a top view;
  • Fig. 2 a view of an example of a strip to be galvanized;
  • Fig. 3 a perspective view of an electroplating bath of the system according to the invention;
  • Fig. 4 a schematic representation like Fig. 1 an embodiment of the system.

Eine erfindungsgemäße Anlage 10 zum kontinuierlichen Galvanisieren eines Bandes 12 umfasst eine Abwickelstation 14, von der das ungalvanisierte Band 12 abgewickelt und einer ersten Galvanisierstation 16 zugeführt wird. Die Anlage 10 umfasst weiter eine angetriebene Aufwickelstation 18, in der das galvanisierte Band 12 aufgewickelt wird, sowie eine Steuerungsvorrichtung 20.A system 10 according to the invention for the continuous electroplating of a strip 12 comprises an unwinding station 14, from which the ungalvanized strip 12 is unwound and fed to a first electroplating station 16. The system 10 further comprises a driven winding station 18, in which the galvanized strip 12 is wound, and a control device 20.

Die Abwickelstation 14 weist eine Vorratsrolle 14-1 auf, auf der das zu galvanisierende Band 12 bevorratet ist, eine Führungsrolle 14-2 zum korrekten Führen des Bandes 12 und einen Abwickelantrieb 14-3 auf.The unwinding station 14 has a supply roll 14-1 on which the strip 12 to be galvanized is stored, a guide roller 14-2 for correctly guiding the strip 12 and an unwinding drive 14-3.

Die erste Galvanisierstation 16 umfasst eine kreisförmige, horizontal liegende Halterungseinrichtung 22. In dem dargestellten Ausführungsbeispiel besteht die Halterungsvorrichtung 22 aus einem metallenen Ring 24, der über Halterollen 26 gehalten ist. Der Ring 24 kann in der horizontalen Ebene um eine vertikale Achse rotieren. Der Ring 24 besteht beispielsweise aus Edelstahl.The first electroplating station 16 comprises a circular, horizontally lying holding device 22. In the exemplary embodiment shown, the holding device 22 consists of a metal ring 24, which is held via holding rollers 26. The ring 24 can rotate in the horizontal plane about a vertical axis. The ring 24 is made of stainless steel, for example.

Der Ring 24 wird durch ein endloses Antriebsband 30 angetrieben. Dazu liegt das Antriebsband 30 über einen Teil des Umfangs an dem Aussenrand 28 an und wird über Führungsrollen 32 und eine Antriebsrolle 34 zurückgeführt. Die Antriebsrolle 34 wird von einem Ringantrieb 35 angetrieben, so dass der Ring 24 der Halterungsvorrichtung 22 sich dreht.The ring 24 is driven by an endless drive belt 30. For this purpose, the drive belt 30 lies against the outer edge 28 over part of the circumference and is returned via guide rollers 32 and a drive roller 34. The drive roller 34 is driven by a ring drive 35 so that the ring 24 of the holding device 22 rotates.

Das zu galvanisierende Band 12 ist in einer Seitenansicht in Fig. 2 dargestellt. Das Band 12 kann z.B. ein Stanzband sein, das aneinandergereiht zusammenhängende Teile 36, z.B. Steckerstifte, aufweist, deren eines Ende 38 galvanisiert werden soll und die dann in einem späteren anderen Prozess durch Stanzen vereinzelt werden. Das Band 12 soll also zumindest in dem Bereich, der die Enden 38 der Teile 36 aufweist, galvanisiert werden. In dem anderen Endbereich 39 kann das Band 12 gehalten werdenThe strip 12 to be galvanized is shown in a side view Fig. 2 shown. The band 12 can, for example, be a stamped band which has connected parts 36, eg plug pins, arranged in a row, one end 38 of which is to be galvanized and which are then separated by punching in a later different process. The band 12 should therefore be galvanized at least in the area that has the ends 38 of the parts 36. The band 12 can be held in the other end region 39

Das Band 12 wird nach der Abwickelstation 14 von einer vorgespannt gehaltenen Führungsrolle 40 erfasst und zwischen den Aussenrand 28 des Rings 24 und dem Antriebsband 30 geführt, so dass es dadurch rutschfest gehalten und mit dem rotierenden Ring 24 mitgenommen wird. Dabei wird das Band 12 so eingeführt, dass es nur mit seinem oberen Bereich von Aussenrand 28 und Antriebsband 30 ergriffen wird und der zu galvanisierende Bereich (Enden 38) nach unten übersteht. Über den metallenen Ring 24 ist elektrischer Kontakt zu dem Band 12 hergestellt, damit es auch galvanisiert werden kann. Der Ring 24 selbst ist über Schleifkontakte elektrisch kontaktiert.After the unwinding station 14, the band 12 is captured by a pre-tensioned guide roller 40 and guided between the outer edge 28 of the ring 24 and the drive band 30, so that it is held non-slip and is carried along with the rotating ring 24. The band 12 is inserted in such a way that only its upper region is gripped by the outer edge 28 and drive band 30 and the region to be galvanized (ends 38) protrudes downwards. On the The metal ring 24 makes electrical contact with the band 12 so that it can also be galvanized. The ring 24 itself is electrically contacted via sliding contacts.

Des Weiteren weist die Galvanisierstation 16 mehrere Galvanikbäder 42 auf, die über einen Teil des Umfanges der Halterungseinrichtung 22 verteilt und unterhalb dieser angeordnet sind. Mit Galvanikbad 42 soll hier allgemein jedes Bad gemeint sein, dass für einen Galvanikprozess notwendig sein kann. Das sind Vorbehandlungsbäder, Elektrolytzellen und dergleichen mehr.Furthermore, the electroplating station 16 has several electroplating baths 42, which are distributed over part of the circumference of the holding device 22 and arranged below it. Electroplating bath 42 generally refers to any bath that may be necessary for an electroplating process. These are pre-treatment baths, electrolyte cells and the like.

Diese Bäder 42 haben in der Draufsicht (Fig. 1) in der erfindungsgemäßen Anlage eine Trapezform, so dass sie aneinandergereiht eine hexagonale Form ergeben und jedes Bad 42 eine Seite des Hexagons bildet. Damit ist der teilkreisförmige Raum unterhalb der Halterungseinrichtung 22 optimal ausgenutzt ist. Somit können in einer Galvanikstation fünf Galvanikbäder angeordnet werden. Über die freibleibende sechste Seite des Hexagons wird das Band 12 eingeführt wie beschrieben und auch ausgeführt. Das Band 12 wird somit kontinuierlich durch jedes der fünf Bäder 42 geführt und dort entsprechend behandelt.These bathrooms 42 have a top view ( Fig. 1 ) in the system according to the invention a trapezoidal shape, so that when lined up they form a hexagonal shape and each bath 42 forms one side of the hexagon. This means that the part-circular space below the holding device 22 is optimally utilized. This means that five electroplating baths can be arranged in one electroplating station. The band 12 is inserted over the remaining sixth side of the hexagon as described and also carried out. The belt 12 is thus continuously guided through each of the five baths 42 and treated there accordingly.

Fig. 3 zeigt eine perspektivische Darstellung eines solchen Galvanikbades 42. In bekannter Weise hat das Bad ein zentrales Becken 42-1, in dem sich z. B. Elektroden befinden und durch das das Band 12 gefördert wird um galvanisiert zu werden. Weiter weist das Bad 42 ein Überlaufbecken 42-2 zum Auffangen des Elektrolyten, ein Pumpsystem 42-3 und einen nicht dargestellten elektrischen Anschluss auf. Wenn erforderlich kann des Bad 42 weitere Komponenten, wie Heizungen, Gleichrichter und dergleichen umfassen. Alle Komponenten eines Galvanikbades 42 sind auf einem Gestell 42-4 gelagert, dass auf Rollen 42-5 ruht und somit einen Wagen bildet. Zumindest die Becken 42-1 und 42-2 können in der Höhe verstellt werden, um nach Absenken das Galvanikbad 42 aus der Galvanisierstation 16 ausfahren zu können und auf diese Weise die Bäder 42 einfach austauschen zu können. Eine erfindungsgemäße Galvanisieranlage 10 kann somit sehr schnell und einfach auf verschiedene Galvanisierprozesse umgerüstet werden. Fig. 3 shows a perspective view of such an electroplating bath 42. In a known manner, the bath has a central basin 42-1, in which z. B. electrodes are located and through which the band 12 is conveyed in order to be galvanized. The bath 42 also has an overflow basin 42-2 for collecting the electrolyte, a pump system 42-3 and an electrical connection, not shown. If necessary, the bath 42 may include additional components such as heaters, rectifiers, and the like. All components of an electroplating bath 42 are stored on a frame 42-4 that rests on rollers 42-5 and thus forms a carriage. At least the basins 42-1 and 42-2 can be adjusted in height in order to be able to move the electroplating bath 42 out of the electroplating station 16 after lowering and in this way to be able to easily replace the baths 42. A galvanizing system 10 according to the invention can therefore be converted very quickly and easily to various galvanizing processes.

Über eine weitere Führungsrolle 44 wird das Band 12 aus der Galvanikstation 16 ausgeführt und der Aufwickelstation 18 zugeführt. Die Aufwickelstation 18 ist ähnlich der Abwickelstation 14 aufgebaut und weist eine Rolle 18-1, auf der das Band 12 aufgewickelt wird, eine Führungsrolle 18-2 zur korrekten Zuführung des Bandes 12 und einen Aufwickelantrieb 18-3 auf.The strip 12 is taken out of the electroplating station 16 via a further guide roller 44 and fed to the winding station 18. The winding station 18 is constructed similarly to the unwinding station 14 and has a roller 18-1 on which the band 12 is wound, a guide roller 18-2 for correctly feeding the band 12 and a winding drive 18-3.

Wenn alle drei Antriebe, Abwickelantrieb 14-3, Ringantrieb 35 und Aufwickelantrieb 18-3, exakt gleichmäßig drehen wird das Band sauber und ohne Spannungen und ohne Durchhängen gefördert. Dies wird durch Steuerung der Antriebe über die Steuerungsvorrichtung 20 gewährleistet.If all three drives, unwind drive 14-3, ring drive 35 and take-up drive 18-3, rotate exactly evenly, the tape is conveyed cleanly and without tension and without sagging. This is ensured by controlling the drives via the control device 20.

Zur Synchronisation zwischen der Abwickelstation 14 und der Galvanisierstation 16 ist eine erste Geschwindigkeitsanpassungvorrichtung vorgesehen. Diese funktioniert wie folgt. Die Führungsrolle 14-2 ist beweglich gelagert, nämlich seitlich auslenkbar und vorgespannt gelagert, was durch den Doppelpfeil 50 angedeutet ist. Die Auslenkung der Führungsrolle 14-2 oder eines Arms, auf dem die Führungsrolle 14-2 gelagert sein kann, wird von der Steuerungsvorrichtung 20 erfasst, was durch die Verbindungslinie 52 dargestellt ist. Abhängig von der Auslenkung regelt die Steuerungsvorrichtung 20 nun den Abwickelantrieb 14-3, so dass die Auslenkung stets einer Soll-Auslenkung entspricht. Der Abwickelantrieb 14-2 wird damit auf den Ringantrieb geregelt. Dieser gibt die Fördergeschwindigkeit vor. Das Band 12 hat dann immer die gleiche, richtige Spannung.A first speed adjustment device is provided for synchronization between the unwinding station 14 and the electroplating station 16. This works as follows. The guide roller 14-2 is mounted movably, namely laterally deflectable and prestressed, which is indicated by the double arrow 50. The deflection of the guide roller 14-2 or an arm on which the guide roller 14-2 can be mounted is detected by the control device 20, which is represented by the connecting line 52. Depending on the deflection, the control device 20 now regulates the unwinding drive 14-3 so that the deflection always corresponds to a target deflection. The unwinding drive 14-2 is thus controlled to the ring drive. This specifies the conveying speed. The band 12 then always has the same, correct tension.

In analoger Weise wird der Aufwickelantrieb 18-3 mit einer zweiten Geschwindigkeitsanpassungvorrichtung mit Hilfe der Führungsrolle 18-2, dessen Auslenkung ebenfalls erfasst wird, über die Steuerungsvorrichtung 20 geregelt.In an analogous manner, the winding drive 18-3 is regulated via the control device 20 with a second speed adjustment device with the aid of the guide roller 18-2, the deflection of which is also recorded.

Die Steuerungsvorrichtung 20 ist in einem Steuerschrank aufgenommen, an dessen Touchpanel alle Parameter wie Temperaturen, Geschwindigkeiten und Ströme angezeigt bzw. verändert werden können. Die Gleichrichter aller Zellen liefern Strom und-Spannung. Die Geschwindigkeit der Anlage ist stufenlos von 0 bis zu einer maximalen Geschwindgkeit einstellbar.The control device 20 is housed in a control cabinet, on the touch panel of which all parameters such as temperatures, speeds and currents can be displayed or changed. The rectifiers of all cells supply current and voltage. The speed of the system is infinitely adjustable from 0 to a maximum speed.

In Fig. 4 ist eine weitere Ausführungsform der erfindungsgemäßen Anlage dargestellt. Für bestimmte Galvanisieraufgaben sind die fünf Bäder 42 der ersten Galvanisierstation 16 womöglich zu wenig. In diesem Fall lässt sich die Anlage in einfachster Weise erweitern, indem eine weitere Galvanisierstation 16-2 zwischen die erste Galvanisierstation 16 und die Aufwickelstation 18 eingefügt wird. Die zweite Galvanisierstation 16-2 ist identisch zur ersten aufgebaut.In Fig. 4 a further embodiment of the system according to the invention is shown. The five baths 42 of the first electroplating station 16 may not be enough for certain electroplating tasks. In this case, the system can be expanded in the simplest way by inserting a further electroplating station 16-2 between the first electroplating station 16 and the winding station 18. The second electroplating station 16-2 is constructed identically to the first.

Das Band 12 wird nach Verlassen der ersten Station 16 (nach der Führungsrolle 44) der Führungsrolle 40-2 der zweiten Station 16-2 zugeführt. Wie in der ersten Station wird das Band 12 mittels des Ringes 24-2 durch die Galvanikbäder 42-2 der zweiten Station 16-2 geführt und schließlich über die Führungsrolle 44-2 der Aufwickelstation 18 zugeführt und dort aufgewickelt.After leaving the first station 16 (after the guide roller 44), the tape 12 is fed to the guide roller 40-2 of the second station 16-2. As in the first station, the strip 12 is guided by means of the ring 24-2 through the electroplating baths 42-2 of the second station 16-2 and finally fed via the guide roller 44-2 to the winding station 18 and wound up there.

Die Abstimmung der Antriebe ist jetzt ein komplexeres Problem. Die Erfindung hat aber das Prinzip, dass die maßgebende Geschwindigkeit die des Ringantriebs 35 der ersten Station 16 ist. Die gesamte Regelung übernimmt wieder die Steuerungsvorrichtung 20. Die Regelung über die erste Geschwindigkeitsanpassungvorrichtung zwischen Abwickelstation und erster Galvanisierstation 16 bleibt unverändert. Die Regelung des Ringantriebs 35-2 der zweiten Galvanisierstation 16-2 geschieht derart, dass die Auslenkung (Doppelpfeil 60) der ebenfalls auslenkbar vorgespannt gelagerten Führungsrolle 40-2 erfasst und der Steuerungsvorrichtung 20 als Regelgröße zugeführt wird, so dass der Ringantrieb 35-2 so geregelt wird, dass eine Soll-Auslenkung der Führungsrolle 40-2 vorliegt. Schließlich erfolgt die Regelung zwischen der zweiten Galvanisierstation 16-2 und der Aufwickelstation 18 wie im ersten Ausführungsbeispiel nach Fig. 1 die Regelung zwischen der ersten Galvanisierstation 16 und der Aufwickelstation 18.Tuning the drives is now a more complex problem. However, the invention has the principle that the relevant speed is that of the ring drive 35 of the first station 16. The entire control is again carried out by the control device 20. The control via the first speed adjustment device between the unwinding station and the first electroplating station 16 remains unchanged. The ring drive 35-2 of the second electroplating station 16-2 is controlled in such a way that the deflection (double arrow 60) of the guide roller 40-2, which is also mounted in a deflectable prestressed manner, is detected and fed to the control device 20 as a controlled variable, so that the ring drive 35-2 is so It is regulated that there is a target deflection of the guide roller 40-2. Finally, the control between the second electroplating station 16-2 and the winding station 18 takes place as in the first exemplary embodiment Fig. 1 the control between the first electroplating station 16 and the winding station 18.

Je nach Bedarf kann die Anlage 10 durch eine dritte oder sogar noch mehr Galvanisierstationen in gleicher Weise erweitert werden. Sinnvollerweise wird die Antriebsgeschwindigkeit jeder weiteren Galvanisierstation, die eingesetzt wird, jeweils nach ihrem Vorgänger geregelt, also der Station, die stromaufwärts liegt. Insgesamt wird dann die Antriebsgeschwindigkeit von der ersten Station bestimmt.Depending on requirements, the system 10 can be expanded in the same way by a third or even more electroplating stations. It makes sense that the drive speed of each additional electroplating station that is used is regulated according to its predecessor, i.e. the station that is upstream. Overall, the drive speed is then determined by the first station.

Eine weitere Galvanisierstation kann z.B. dann sinnvoll sein, wenn das Band 12 nicht nur bereichsweise (an den Enden 38) sondern vollständig galvanisiert werden soll. Dann wird in der ersten Galvanisierstation 16 der Endbereich 38 galvanisiert und im Bereich 39 das Band 12 gehalten. Zwischen der ersten und zweiten Galvanisierstation wird das Band 12 gewendet, also um 180 verdrillt, so dass es in der zweiten Galvanisierstation umgekehrt eingeführt wird und dort mit den bereits galvanisierten Endbereichen 38 gehalten wird. Der in der ersten Galvanisierstation 16 nicht galvanisierte Bereich 39 steht jetzt nach unten über und kann in der zweiten Galvanisierstation 16-2 galvanisiert werden.A further galvanizing station can be useful, for example, if the strip 12 is not just galvanized in certain areas (at the ends 38) but completely should. Then the end region 38 is galvanized in the first galvanizing station 16 and the band 12 is held in the region 39. Between the first and second galvanizing stations, the band 12 is turned over, i.e. twisted by 180, so that it is inserted the other way around in the second galvanizing station and is held there with the already galvanized end regions 38. The area 39 that was not galvanized in the first galvanizing station 16 now protrudes downwards and can be galvanized in the second galvanizing station 16-2.

Für einen einfachen Austausch eines Galvanikbades 42 oder 42-2 ist über den elektrischen Anschluss eine das jeweilige Galvanikbad kennzeichnende Kodierung an die Steuerungsvorrichtung 20 übermittelbar. Dann liegen alle Information über das Bad unmittelbar der Steuerungsvorrichtung 20 vor.For a simple replacement of an electroplating bath 42 or 42-2, a code identifying the respective electroplating bath can be transmitted to the control device 20 via the electrical connection. All information about the bathroom is then available directly to the control device 20.

Claims (10)

  1. System (10) for continuous electroplating a region of a strip (12) comprising an unwinding station (14), from which the non-electroplated strip (12) can be unwound and fed to a first electroplating station (16), and comprising a driven winding station (18), in which the electroplated strip (12) can be wound up, and comprising a control device (20), wherein the first electroplating station (16) comprises:
    a circular, horizontally arranged holding device (22), which can be rotated about a vertical axis and at the outer edge (28) of which the strip (30) can be held so, that the region (38) to be electroplated projects downwards;
    an endless drive belt (12), which over a part of the circumference abuts the outer edge (28) and the strip (30) is held between the outer edge (28) and the drive belt (30) and is thereby conveyable in the circumferential direction;
    a drive (35) for rotating the holding device (22);
    electroplating baths (42), which are distributed over a part of the circumference of the holding device (22) and are arranged below the holding device (22), so that the region (38) of the strip (12) to be electroplated can be conveyed through the baths (42) and electroplated there, wherein the unwinding station can be driven and the drive of the unwinding station can be adjusted in its speed to the drive speed of the holding device via a first speed adjustment device,
    characterized in that
    the electroplating baths (42) comprise a central basin (42-1) in which electrodes are located and through which the strip (12) is conveyed in order to be electroplated, and in that the baths (42) have an overflow basin (42-2) for collecting the electrolyte, a pumping system (42-3) and an electrical connection, wherein all components of the electroplating bath (42) are mounted on a frame (42-4) resting on rollers (42-5) and thus forming a trolley, wherein at least the basins (42-1) and (42-2) are adjustable in height so that after lowering, the electroplating bath (42) can be moved out of the electroplating station (16) and in this way the baths (42) can be easily exchanged, and wherein the electroplating baths have a trapezoidal shape so that they form a hexagonal shape when lined up and each bath (42) forms one side of the hexagon, wherein the electroplating baths in an electroplating station form five sides of a hexagon and the supply and removal of the strip takes place via the sixth side.
  2. System according to claim 1, characterized in that
    the first speed adjustment device comprises a roller which is arranged laterally movable with respect to the conveying direction of the strip (12) and over which the unwound strip (12) can be guided and which is suitable for keeping the strip (12) under tension, and wherein the deflection of the roller can be detected by the control device, and wherein the drive of the unwinding station can be adjusted by the control device (20) by controlling the drive of the unwinding station (14) to a desired deflection.
  3. System according to any one of the preceding claims, characterized in that the first electroplating station (16) comprises a biased feed roller for correctly feeding the strip (12) between the outer edge of the holding device (22) and the drive belt (30).
  4. System according to any one of the preceding claims, characterized in that the winding station (18) comprises a second speed adjustment device for adjusting the drive of the winding station (18) to the drive speed of the holding device (22).
  5. System according to any one of the preceding claims, characterized in that at least one second electroplating station (16-2) is provided, to which the strip leaving the first electroplating station (16) can be fed.
  6. System according to claim 5, characterized in that the second electroplating station (16-2) comprises a further speed adjustment device to which a feed roller of the second electroplating station (16-2) is associated and which can be held biased laterally deflectably, so that a change in the deflection is a measure of a speed difference of the drives of the two electroplating stations (16, 16-2), which can be detected and controlled by the control device (20).
  7. System according to any one of the preceding claims, characterized in that all drives to be controlled can be aligned according to the drive of the first electroplating station (16) by the control device (20).
  8. System according to any one of the preceding claims, characterized in that a third electroplating station is provided.
  9. System according to any one of the preceding claims, characterized in that each electroplating bath (42, 42-2) has an electrical connection and a code identifying the respective electroplating bath (42) can be transmitted to the control device (20) via the electrical connection.
  10. System according to any one of the preceding claims, characterized in that the unwinding station (14) and/or the winding station (18) rest on wheels.
EP14191387.1A 2014-10-31 2014-10-31 System for electroplating a band Active EP3015573B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14191387.1A EP3015573B1 (en) 2014-10-31 2014-10-31 System for electroplating a band
US14/928,150 US20160122892A1 (en) 2014-10-31 2015-10-30 System for electroplating a strip
CN201510727569.2A CN105568338A (en) 2014-10-31 2015-10-30 System for electroplating a strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14191387.1A EP3015573B1 (en) 2014-10-31 2014-10-31 System for electroplating a band

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EP3015573A1 EP3015573A1 (en) 2016-05-04
EP3015573B1 true EP3015573B1 (en) 2023-12-06

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US (1) US20160122892A1 (en)
EP (1) EP3015573B1 (en)
CN (1) CN105568338A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106702468B (en) * 2016-12-30 2021-05-28 北京工业大学 Method for efficiently and continuously preparing metal film by equipotential vertical full-immersion cathode

Citations (1)

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Publication number Priority date Publication date Assignee Title
US4553501A (en) * 1984-03-14 1985-11-19 Shinko Electric Industries Co., Ltd. Selective plating apparatus

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DE2324834C2 (en) * 1973-05-17 1978-09-07 Dr. Eugen Duerrwaechter Doduco, 7530 Pforzheim Device for continuous selective strip electroplating
US4036725A (en) * 1975-11-21 1977-07-19 National Semiconductor Corporation Wheel selective jet plating system
GB2104025A (en) 1981-07-16 1983-03-02 Kirkby Process And Equipment L Improvements in or relating to electro-plating machines
US5242562A (en) * 1992-05-27 1993-09-07 Gould Inc. Method and apparatus for forming printed circuits
US5482605A (en) * 1995-02-09 1996-01-09 Taylor; James C. Portable environmental clean plating system
WO2008123211A1 (en) * 2007-03-28 2008-10-16 Toray Industries, Inc. Web pressure welding, pressure welding method, power supply method, power supply device, continuous electrolyte plating device, and method for manufacturing plate film-equipped web
JP2009096491A (en) * 2007-10-15 2009-05-07 Tokyo Autom Mach Works Ltd Wrapper feeder

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Publication number Priority date Publication date Assignee Title
US4553501A (en) * 1984-03-14 1985-11-19 Shinko Electric Industries Co., Ltd. Selective plating apparatus

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US20160122892A1 (en) 2016-05-05
EP3015573A1 (en) 2016-05-04
CN105568338A (en) 2016-05-11

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