EP1350576A2 - Driver system for devices for the drawing or braking of metal strips - Google Patents

Driver system for devices for the drawing or braking of metal strips Download PDF

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Publication number
EP1350576A2
EP1350576A2 EP03014045A EP03014045A EP1350576A2 EP 1350576 A2 EP1350576 A2 EP 1350576A2 EP 03014045 A EP03014045 A EP 03014045A EP 03014045 A EP03014045 A EP 03014045A EP 1350576 A2 EP1350576 A2 EP 1350576A2
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EP
European Patent Office
Prior art keywords
strip
belt
chain
permanent magnets
eddy current
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.)
Granted
Application number
EP03014045A
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German (de)
French (fr)
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EP1350576A3 (en
EP1350576B1 (en
Inventor
Norbert Umlauf
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE1998152078 external-priority patent/DE19852078A1/en
Priority claimed from DE29909850U external-priority patent/DE29909850U1/en
Application filed by Individual filed Critical Individual
Publication of EP1350576A2 publication Critical patent/EP1350576A2/en
Publication of EP1350576A3 publication Critical patent/EP1350576A3/en
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Publication of EP1350576B1 publication Critical patent/EP1350576B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/08—Braking or tensioning arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/003—Regulation of tension or speed; Braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/006—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only winding-up or winding-off several parallel metal bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/345—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the tension or advance of the material
    • B21C47/3458—Endlessly revolving chain systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B65H23/10—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/006—Pinch roll sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/30—Chains
    • B65H2404/35—Arrangement of chains facing each other for forming a transport nip
    • B65H2404/351—Arrangement of chains facing each other for forming a transport nip the nip being formed between elongate members bridging two chains running synchronously and in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/13—Actuating means linear magnetic, e.g. induction motors

Definitions

  • the invention is based on the problem, on the one hand the possible uses to expand the known brake scaffold and on the other hand in particular for the entry, exit and entrainment conditions of the carriage-like Roller blocks in the conveyor area are targeted, for the different tasks to achieve different behavior.
  • a low hardness of the coating is preferably relative to a thick coating selected.
  • the metal tape is embedded so that the shape defects of the metal strip in cross section and the band ripples can be easily compensated.
  • the open spaces created allow that the squeezed volume of the elastic coating flow specifically can.
  • the coating receives a filler, e.g. a flat steel. This will achieved that the squeezing by means of the form factor of the functional task can be adjusted while the desired inclination the coating in the direction of pull can be done almost without restriction.
  • a filler e.g. a flat steel.
  • a sensible application is that only one rotating Carriage chain, is designed as a revolving table. In doing so forces into it by means of permanent magnets or electromagnets Belt initiated to apply braking or tensile forces. magnetizable Metal tape is attracted to the Protective belt of the car chain pulled and it will be according to the ⁇ -value driving forces generated.
  • the heating of metal strip is achieved when the energy is above that circulating system is supplied conductively or inductively. This effect can also be used in galvanic or other processes.
  • the brake scaffold or the control frame can be around a belt tension measuring frame be expanded. Here these aggregates hang in leaf springs.
  • the reaction forces of the strip tension are falsified using measuring cells detected. This measuring system is only able to measure horizontal forces with high repeatability, and, depending on the measuring range, can be set to a few Newtons.
  • Strips such as copper or aluminum strip
  • special effects possible by the targeted feeding of the Chains with the roller blocks in a relatively short clamping and driving area by means of straight guide rails, which at the same time support allow the clamping forces.
  • Through inlet and outlet curves on the straight guide rails of the The targeted feeding of the roller blocks is achieved.
  • a special shape enables a very elastic transition. Squeezing is done by inserting shaped sheets the elastic coating is specifically reduced.
  • the design of the electric linear drive has the advantage that Load the hinges of the chain trolley straps only from the Deflection and centrifugal forces take place while the loads are being applied Belt pulls only work in the driving area.
  • the dimensioning the hinge can thus be limited to the deflection and centrifugal forces become. This minimizes wear.
  • the driving distance can be designed so that the metal belt conductive or inductive current is supplied.
  • This solution comes preferably in galvanic processes, when the strip is heated, for Measuring processes on the belt and for building up magnetic fields, which are used for Initiation of restraining forces are used.
  • Power supplies become current-conducting in the carriage-like roller blocks Materials introduced.
  • the current can then be switched on specifically, when the roller blocks pass through the driving area.
  • the energy supply can be switched off at any time.
  • the belt can be pulled through the opposite speed of the chain carriage and the restraining force be regulated by changing the frequency.
  • the arrangement shown has the great advantage that the individual Tape strips without deflection roller tangentially fed to the take-up reel 1, 2 become.
  • the retreats built up in the brake scaffold 5, 6 are without loss of deflection and without relative movements to the point of impact brought. This creates ideal conditions for a uniform specific belt tension distribution created.
  • the tangential inlet is constantly adjusted.
  • the number 1 shows the winding mandrel of the winding reel, 2 the wound coil, 3 the third separation for the Tape strips, 4 the metal tape, 5 the upper roller, 6 the lower one Circulating roll, 7 the second separation and 8 the first separation to feed the metal strip from the loop 9 to the brake stand at right angles. 10 is the splitting shear.
  • the brake scaffold 20 hangs in the control frame 21 by means of leaf springs 24.
  • the belt tension can be changed by means of load cells 23 without being distorted by deflections with a very low hysteresis and very high repeatability be measured.
  • the brake and train frame 20 exists from the stand, oppositely arranged revolving rollers 5 and 6, which are installed in guides 18 of the stand 20 and of which the upper revolving roller 5 by means of piston rods 18 acted upon by a cylinder is turned against the lower roller 6.
  • the chains 11 and 11a are composed of a large number of coupled, cart-like roller blocks that span the entire Extend the width of a band 4 arriving in the direction of arrow 25 and with at least two-sided support wheels 26 and side guide rollers 27 unroll on a running track or lie on it sideways. The career is led to a driving area in which the opposite Roll blocks 11 grasp the tape 4 on both sides and clamp between them.
  • the coating supports 13 have an elastic coating 12 Mistake.
  • the coating width corresponds to the chain pitch T and extends within the axes of the support wheels 26 of two adjacent, i.e. consecutive blocks. The axes form simultaneously a defined pivot point.
  • the coating 12 is free 30 designed so that a particularly elastic adjustment on the inlet and outlet side the crushed coating becomes possible.
  • the pinch height the coating should be as low as possible to avoid the Keep flexing work as low as possible.
  • the coating get a very high elasticity in the direction of tape tension about the different inclination of the coating To enable belt speeds for the individual slit strips, as shown in Fig. 5.
  • This form of training is for metal strips with the highest surface demands of great interest as contact to the Braking system is present.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Coating Apparatus (AREA)
  • Braking Arrangements (AREA)
  • Advancing Webs (AREA)
  • Coating With Molten Metal (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Metal Extraction Processes (AREA)

Abstract

The apparatus draws metal bands/sheets between two continuous chain systems having roller blocks to clamp the sheets. The elastic coating is shaped and supplied with linings to fulfill the required task. The apparatus is pivoted, so that the band is tangentially fed to the coil. It has electric linear motor drive, and floats in leaf springs, which determine reaction forces by using load cells. The roller blocks carry magnetic coils or permanent magnets. Surface flatness is measured by a rotating roller or similar, which are incorporated in the elastic coating.

Description

Technisches GebietTechnical field

Die Erfindung betrifft Mitnahmesysteme in einer Vorrichtung zum Ziehen oder Bremsen von Metallbändern bzw. Blechen, vorzugsweise in Bandlinien zwischen endlos umlaufenden Kettensystemen.The invention relates to entrainment systems in a device for pulling or braking of metal strips or sheets, preferably in strip lines between endless revolving chain systems.

Stand der TechnikState of the art

Aus EP-A-0088347 und EP-A-0195096 ist ein Bremsgerüst für Metall- bzw. Blechbänder bekannt, mit dem sich die beim Bremsen von Metallbändern benötigte Zug- bzw. Bremskraft ohne schädigende Einwirkungen auf die Oberfläche des gespaltenen oder nicht gespaltenen Bandes aufbringen läßt.From EP-A-0088347 and EP-A-0195096 a brake scaffold for metal or sheet metal strips known with which the braking of metal strips required traction or braking force without damaging effects on the surface of the split or non-split tape can be applied.

Die Anwendung des Wirbelstromeffektes zum Bremsen von elektrisch leitfähigem Metallband ist in der DE-AS 1 288 865 beschrieben. Diese Ausführungsform ist in der Praxis zur Anwendung gekommen. Der wesentliche Nachteil besteht darin, daß die gewünschte Funktion sich brauchbar erst einstellt, wenn eine Bandgeschwindigkeit von ca. 50 m/min erreicht wird. Die Bandzugregelung konnte nur durch eine Abstandsveränderung erfolgen. Das Ergebnis war unbefriedigend, da bei zu geringem Abstand eine Berührung mit dem Magneten Relativbewegungen verursachten.The application of the eddy current effect for braking electric Conductive metal tape is described in DE-AS 1 288 865. This Embodiment has been used in practice. The essential The disadvantage is that the desired function usable only when a belt speed of approx. 50 m / min is reached. The belt tension control could only be done by changing the distance respectively. The result was unsatisfactory, since too short distance a contact with the magnet relative movements caused.

In der Offenlegungsschrift DE 195 24 289 A1 wird eine weitere Wirbelstrombremse beschrieben. Der wesentliche Unterschied besteht darin, daß die Permanentmagnete auf einer Kreisbahn bewegt werden. Für den Rückhalteeffekt steht nur eine Magnetbahn zur Verfügung. Zudem stellt sich nur für einen Bruchteil der Periode die Parallelität der Permanentmagnete ein, wodurch der Rückhalteeffekt ungleichmäßig und wesentlich vermindert aufgebaut wird. Um ausreichenden spezifischen Bandzug aufbringen zu können, müßten die Drehzahlen der Bremsrollen in nicht mehr beherrschbare Größenordnungen gebracht werden. Zudem stellen sich große Antriebsleistungen bei einem sehr ungünstigen Wirkungsgrad ein.Another eddy current brake is described in the published patent application DE 195 24 289 A1 described. The main difference is that the permanent magnets are moved on a circular path. For the Only a magnetic track is available for the retention effect. Also poses the parallelism of the permanent magnets only for a fraction of the period a, which makes the retention effect uneven and essential is built reduced. For sufficient specific tape tension to be able to apply, the speeds of the brake rollers should not in more manageable orders of magnitude. Also ask great drive power with a very unfavorable efficiency on.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt das Problem zugrunde, einerseits die Einsatzmöglichkeiten des bekannten Bremsgerüstes zu erweitern und andererseits insbesondere für die Einlauf-, Auslauf- und Mitnahmebedingungen der wagenartigen Rollenblöcke im Bandmitnahmebereich ein gezieltes, für die verschiedenen Aufgaben unterschiedliches Verhalten zu erreichen.The invention is based on the problem, on the one hand the possible uses to expand the known brake scaffold and on the other hand in particular for the entry, exit and entrainment conditions of the carriage-like Roller blocks in the conveyor area are targeted, for the different tasks to achieve different behavior.

Dieses Problem wird gemäß den Merkmalen des Hauptanspruches durch eine Formgebung gelöst, die im mittleren Bereich eine stabile Abstützung bewirkt. Der Ein- und Auslauf muß elastisch gestaltet werden. Die Ausbildung erfolgt so, daß eine hohe Elastizität in horizontaler Richtung (Bandzugrichtung) erreicht wird. Weiterhin wird mit der Erfindung eine geringe Verquetschung erreicht, wodurch die Walkarbeit im Ein- und Auslauf entscheidend reduziert werden kann. Die Beschichtungsbreite entspricht der Kettenteilung. Die Anordnung erfolgt zwischen den Laufollen. Mit dieser Ausbildung gelingt es, daß eine geschlossene Kontaktfläche im Mitnahmebereich zur Verfügung steht. Diese Ausbildung erfordert den synchronen Lauf der oberen zur unteren Wagenkette.This problem is solved according to the features of the main claim solved a shape that has a stable support in the central area causes. The inlet and outlet must be made elastic. Training takes place so that a high elasticity in the horizontal direction (Tape direction) is reached. Furthermore, with the invention little crushing is achieved, which makes the flexing work in and Spout can be significantly reduced. The coating width corresponds to the chain pitch. The arrangement is between the Running coils. With this training it is possible to have a closed contact surface is available in the take-away area. This training requires the synchronous running of the upper to the lower car chain.

Vorzugsweise wird eine geringe Härte der Beschichtung bei einer relativ dicken Beschichtung gewählt. Das Metallband wird eingebettet, so daß die Formfehler des Metallbandes im Querschnitt und die Bandwelligkeiten problemlos kompensiert werden. Die geschaffenen Freiräume erlauben, daß das verquetschte Volumen der elastischen Beschichtung gezielt fließen kann.A low hardness of the coating is preferably relative to a thick coating selected. The metal tape is embedded so that the shape defects of the metal strip in cross section and the band ripples can be easily compensated. The open spaces created allow that the squeezed volume of the elastic coating flow specifically can.

Die Beschichtung erhält ein Füllstück, z.B. ein Flachstahl. Hierdurch wird erreicht, daß das Verquetschen mittels Formfaktor gezielt der Funktionsaufgabe angepaßt werden kann, während die gewünschte Schrägstellung der Beschichtung in Zugrichtung nahezu uneingeschränkt erfolgen kann.The coating receives a filler, e.g. a flat steel. This will achieved that the squeezing by means of the form factor of the functional task can be adjusted while the desired inclination the coating in the direction of pull can be done almost without restriction.

Eine sinnvolle Anwendung besteht darin, daß nur eine umlaufende Wagenkette, als umlaufender Tisch ausgebildet wird. Dabei werden mittels Permanentmagneten oder über Elektromagnete Kräfte in das Band eingeleitet, um Brems- oder Zugkräfte aufbringen zu können. Magnetisierbares Metallband wird durch die Anziehungskräfte auf den Schutzgurt der Wagenkette gezogen und es werden entsprechend dem µ-Wert Mitnahmekräfte erzeugt. A sensible application is that only one rotating Carriage chain, is designed as a revolving table. In doing so forces into it by means of permanent magnets or electromagnets Belt initiated to apply braking or tensile forces. magnetizable Metal tape is attracted to the Protective belt of the car chain pulled and it will be according to the µ-value driving forces generated.

Als weitere Möglichkeit bietet es sich an, daß zwei Umlaufrollen mit Permanentmagneten oder mit Elektromagneten ausgerüstet werden und durch die aufgebrachten Magnetpole ein paralleles, lineares, magnetisches Wanderfeld aufgebaut wird, das im elektrisch leitfähigen Bandmaterial als lineare, umlaufende Wirbelstrombremse wirkt.As a further possibility, there are two rotating rollers with permanent magnets or be equipped with electromagnets and through the applied magnetic poles a parallel, linear, magnetic Wanderfeld is built up in the electrically conductive strip material acts as a linear, circulating eddy current brake.

Das Erwärmen von Metallband wird erreicht, wenn die Energie über das umlaufende System konduktiv oder induktiv zugeführt wird. Dieser Effekt kann ebenso bei galvanischen oder anderen Prozessen Anwendung finden.The heating of metal strip is achieved when the energy is above that circulating system is supplied conductively or inductively. This effect can also be used in galvanic or other processes.

Wird das umlaufende System mit elektronischen Meßköpfen ausgerüstet so können zum Beispiel die Banddicke, die Oberflächenbeschaffenheit, die metallischen Strukturen und ähnliches sehr genau überprüft werden, da das Metallband und der Prüfkopf über eine zu bestimmende Zeit mit identischer Geschwindigkeit in fixierter Lage arbeiten kann.If the circulating system is equipped with electronic measuring heads For example, the strip thickness, the surface quality, the metallic structures and the like are checked very precisely, since the metal strip and the test head are used for a certain time identical speed can work in a fixed position.

Eine optimale Wirkungsweise wird erreicht, wenn der mechanische Linearantrieb durch einen elektrischen Linearantrieb betrieben wird. Diese Ausführungsform belastet das Wagenkettensystem nur im linearen Mitnahmebereich und ist somit insbesondere für große Kräfte und große Geschwindigkeiten sinnvoll.An optimal mode of operation is achieved if the mechanical linear drive is operated by an electric linear drive. This Embodiment loads the car chain system only in the linear driving area and is therefore especially for large forces and large ones Speeds make sense.

Wird das Bremsgerüst auf einen Steuerrahmen in Passlinehöhe aufgelegt, so wird ein extrem präzises Steuern des Bandes in Bezug auf die Bandmitte oder Bandkante möglich, da durch diese Maßnahme das Kippmoment "herauskonstruiert" wird. Hierdurch werden Zugschwankungen durch Schwingungen vermieden. Für Walz- und Streck- Biege-Richtprozesse ist dies ein wichtiger Aspekt. If the brake scaffold is placed on a control frame at passline height, so is an extremely precise control of the tape in relation to the Belt center or belt edge possible, because this measure the Tilting moment is "constructed". This causes train fluctuations avoided by vibrations. For roll and stretch-bend straightening processes this is an important aspect.

Das Bremsgerüst oder der Steuerrahmen können um einen Bandzugmeßrahmen erweitert werden. Hierbei hängen diese Aggregate in Blattfedern. Die Reaktionskräfte des Bandzuges werden über Meßzellen unverfälscht erfaßt. Dieses Meßsystem ist in der Lage, ausschließlich die horizontalen Kräfte mit einer hohen Wiederholgenauigkeit zu messen, und kann, je nach Meßbereich, auf wenige Newton eingestellt werden.The brake scaffold or the control frame can be around a belt tension measuring frame be expanded. Here these aggregates hang in leaf springs. The reaction forces of the strip tension are falsified using measuring cells detected. This measuring system is only able to measure horizontal forces with high repeatability, and, depending on the measuring range, can be set to a few Newtons.

Für hohe Ansprüche, beispielsweise bei sehr oberflächenempfindlichen Bändern, wie Kupfer oder Aluminiumband, werden durch die Erfindung besondere Effekte möglich, und zwar durch das gezielte Zuführen der Ketten mit den Rollenblöcken in einen relativ kurzen Einspann- und Mitnahmebereich mittels gerader Führungsleisten, die gleichzeitig das Abstützen der Einspannkräfte ermöglichen. Auf diese Weise lassen sich relativ große Andrückkräfte aufnehmen, die notwendig sind, um große Zug- oder Rückhaltekräfte ohne Relativbewegung zwischen dem Band und den umlaufenden, wagenartigen Rollenblöcken sicherzustellen. Durch Einlauf- und Auslaufkurven an den geraden Führungsleisten des Mitnahmebereiches wird das gezielte Zuführen der Rollenblöcke erreicht. Durch besondere Formgebung wird eine sehr elastischer Übergang ermöglicht. Durch das Einlegen von Formblechen wird das Verquetschen der elastischen Beschichtung gezielt verringert.For high demands, for example for very sensitive surfaces Strips, such as copper or aluminum strip, are made by the invention special effects possible, by the targeted feeding of the Chains with the roller blocks in a relatively short clamping and driving area by means of straight guide rails, which at the same time support allow the clamping forces. This way you can be relative absorb large pressing forces that are necessary to large Tension or retention forces without relative movement between the belt and to ensure the rotating, carriage-like roller blocks. Through inlet and outlet curves on the straight guide rails of the The targeted feeding of the roller blocks is achieved. A special shape enables a very elastic transition. Squeezing is done by inserting shaped sheets the elastic coating is specifically reduced.

Die Ausbildung des elektrischen Linearantriebes hat den Vorteil, daß die Belastung der Scharnierenden der Kettenwagenlaschen nur aus den Umlenk- und Fliehkräften erfolgt, während die Belastungen aus den aufzubringenden Bandzügen nur im Mitnahmebereich wirken. Die Dimensionierung der Scharniere kann somit auf die Umlenk- und Fliehkräften beschränkt werden. Der Verschleiß wird hierdurch minimiert. The design of the electric linear drive has the advantage that Load the hinges of the chain trolley straps only from the Deflection and centrifugal forces take place while the loads are being applied Belt pulls only work in the driving area. The dimensioning the hinge can thus be limited to the deflection and centrifugal forces become. This minimizes wear.

Die Mitnahmestrecke kann so gestaltet werden, daß dem Metallband konduktiv oder induktiv Strom zugeführt wird. Diese Lösung kommt vorzugsweise bei galvanischen Prozessen, bei Erwärmung des Bandes, für Meßprozesse am Band und zum Aufbau von Magnetfeldern, die zum Einleiten von Rückhaltekräfte verwendet werden, zum Einsatz. Für die Stromzuführung werden in die wagenartigen Rollenblöcke stromleitende Werkstoffe eingebracht. Der Strom läßt sich gezielt dann zuschalten, wenn die Rollenblöcke den Mitnahmebereich durchlaufen. Abgesehen von einem besseren Wirkungsgrad gegenüber herkömmlichen gas- oder ölbefeuerten Glühofenanlagen, liegt ein großer Vorteil dieser Maßnahme darin, daß zu jeder Zeit die Energiezufuhr abgeschaltet werden kann. Bei der Anwendung des Wirbelstromverfahrens können der Bandzug durch die gegenläufige Geschwindigkeit der Kettenwagen und die Rückhaltekraft durch Veränderung der Frequenz geregelt werden.The driving distance can be designed so that the metal belt conductive or inductive current is supplied. This solution comes preferably in galvanic processes, when the strip is heated, for Measuring processes on the belt and for building up magnetic fields, which are used for Initiation of restraining forces are used. For the Power supplies become current-conducting in the carriage-like roller blocks Materials introduced. The current can then be switched on specifically, when the roller blocks pass through the driving area. Apart from better efficiency compared to conventional gas or Oil-fired annealing furnace systems is a great advantage of this measure in that the energy supply can be switched off at any time. at By using the eddy current method, the belt can be pulled through the opposite speed of the chain carriage and the restraining force be regulated by changing the frequency.

Werden die Beschichtungsträger des Wagenkettensystems mit Meßsonden ausgerüstet, so werden durch den umlaufenden Tisch ideale Auswertungsvoraussetzungen geschaffen. Das umlaufende Wagenkettensystem hat die Aufgabe, das Band zu tragen und einen fixen Bandabstand zu den Meßköpfen oder Magnetspulen sicherzustellen. Die Verweilzeit für den Prüfvorgang kann durch die Festlegung der Kontaktstrecke eingestellt werden, da in diesem Bereich das Metallband und das Wagenkettensystem die gleiche Geschwindigkeit haben. Die Anwendung bietet sich an für Banddickenmessungen, Spannungsmessungen im Band, Oberflächenabtastungen und andere Prüfsysteme. Die Zuführung der Ströme kann wahlweise von innen oder seitlich von außen erfolgen. Das Zu- und Abschalten erfolgt, nachdem der Kettenwagen die Parallelstrecke erreicht hat bzw. bevor dieser die Parallelstrecke verläßt. Become the coating carrier of the trolley chain system with measuring probes equipped, so the rotating table ideal conditions for evaluation created. The all-round carriage chain system has the task of carrying the band and a fixed band gap to ensure the measuring heads or solenoids. The dwell time for the testing process can be set by defining the contact distance because in this area the metal belt and the car chain system have the same speed. The application offers itself on for strip thickness measurements, tension measurements in the strip, surface scans and other test systems. The supply of the currents can be done either from the inside or from the side. The feed and Switching off takes place after the chain carriage reaches the parallel route has or before it leaves the parallel route.

Nach dem gleichen System können Einzelmagnete oder Magnetspulen, die über den gesamten Segmentbereich gehen, mit Spannung versorgt werden. Über die magnetischen Anziehungskräfte wird das Band auf die Kettenwagen gezogen. In Abhängigkeit von diesen Kräften und dem µ-Wert können Bandzüge über das Kettenwagensystem aufgebracht werden. Dies ist auch mittels Permanentmagneten möglich. Diese Ausbildung bietet sich für magnetisierbare Metallbänder an.Using the same system, single magnets or solenoids, which go over the entire segment area, supplied with voltage become. The tape is applied to the magnetic attraction Chain car pulled. Depending on these forces and that Belt tension can be applied via the chain carriage system become. This is also possible using permanent magnets. This training lends itself to magnetizable metal strips.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Die Erfindung wird nachfolgend anhand der in den Zeichnungen dargestellten Ausführungsbeispiele näher erläutert. Es zeigen:

Fig. 1
ein Spaltbandbremsgerüst;
Fig. 2
die Vorderansicht eines Bremsgerüstes mit Steuer- und Meßrahmen, teilweise geschnitten;
Fig. 3
die Seitenansicht eines Bremsgerüstes mit Steuer- und Meßrahmen, teilweise geschnitten;
Fig. 4 und 5
eine mögliche elastische Beschichtung unter unterschiedlichen Belastungszuständen;
Fig. 6
Vor- und Rückzüge durch Wirbelstromfelder; und
Fig. 7
Vor- und Rückzüge durch Magnetfelder.
The invention is explained in more detail below on the basis of the exemplary embodiments illustrated in the drawings. Show it:
Fig. 1
a split band brake stand;
Fig. 2
the front view of a brake scaffold with control and measuring frame, partially cut;
Fig. 3
the side view of a brake scaffold with control and measuring frame, partially cut;
4 and 5
a possible elastic coating under different load conditions;
Fig. 6
Advancement and retreat through eddy current fields; and
Fig. 7
Advancement and retraction through magnetic fields.

Wege zur Ausführung der ErfindungWays of Carrying Out the Invention

Die dargestellte Anordnung hat den großen Vorteil, daß die einzelnen Bandstreifen ohne Umlenkrolle dem Aufwickelhaspel 1, 2 tangential zugeführt werden. Die im Bremsgerüst 5, 6 aufgebauten Rückzüge werden ohne Umlenkverluste und ohne Relativbewegungen zum Auflaufpunkt gebracht. Hierdurch werden ideale Voraussetzungen für eine gleichmäβige spezifische Bandzugverteilung geschaffen. Der tangentiale Zulauf wird stetig nachgeregelt. Die Ziffer 1 zeigt den Aufwickeldorn des Aufwickelhaspels, 2 das aufgewickelte Coil, 3 die dritte Separierung für die Bandstreifen, 4 das Metallband, 5 die obere Umlauf-Rolle, 6 die untere Umlauf-Rolle, 7 die zweite Separierung und 8 die erste Separierung, um das Metallband aus der Schlinge 9 dem Bremsgerüst rechtwinkelig zuzuführen. 10 ist die Spaltschere.The arrangement shown has the great advantage that the individual Tape strips without deflection roller tangentially fed to the take-up reel 1, 2 become. The retreats built up in the brake scaffold 5, 6 are without loss of deflection and without relative movements to the point of impact brought. This creates ideal conditions for a uniform specific belt tension distribution created. The tangential inlet is constantly adjusted. The number 1 shows the winding mandrel of the winding reel, 2 the wound coil, 3 the third separation for the Tape strips, 4 the metal tape, 5 the upper roller, 6 the lower one Circulating roll, 7 the second separation and 8 the first separation to feed the metal strip from the loop 9 to the brake stand at right angles. 10 is the splitting shear.

Die Besonderheit dieser Lösung gemäß Fig. 2 besteht darin, daß der mechanische Linearantrieb durch einen elektrischen Linear-Antrieb 19 bewegt wird. Durch diese Lösung ist es möglich, große Bandzüge auf kürzestem Wege in das Metallband einzuleiten. Während der Umlenkungen fallen für die Wagenkette nur die Kräfte aus den Fliehkräften und Scharnierbewegungen an. Die Wagenkette 11 kann einfacher gestaltet werden. Es entfällt die gesamte Antriebskette bestehend aus Welle mit den Kettenrädern, Gelenkwelle, Getriebe, Kupplung und Elektromotor. Es werden wesentlich höhere Geschwindigkeiten bei gleichzeitig hohem Bandzug problemlos beherrscht. Ziffer 12 zeigt die elastische Segmentbeschichtung, 13 den Beschichtungsträger, 14 die Laufschiene. The peculiarity of this solution according to FIG. 2 is that the mechanical Linear drive moved by an electric linear drive 19 becomes. With this solution it is possible to pull large straps on the shortest Initiate ways into the metal band. During the redirections only the forces from centrifugal forces and hinge movements fall for the carriage chain on. The carriage chain 11 can be made simpler. The entire drive chain consisting of the shaft with the Sprockets, cardan shaft, gearbox, clutch and electric motor. It become much higher speeds with high speed Belt tension easily mastered. Number 12 shows the elastic segment coating, 13 the coating carrier, 14 the running rail.

Das Bremsgerüst 20, hängt mittels Blattfedern 24 im Steuerrahmen 21. Der Bandzug kann mittels Wägezellen 23 ohne Verfälschung durch Umlenkungen mit einer sehr geringen Hysteresis und sehr hoher Wiederholgenauigkeit gemessen werden. Das Brems- und Zuggerüst 20 besteht aus dem Ständer, gegenüberliegend angeordneten Umlaufrollen 5 und 6, die in Führungen 18 der Ständer 20 eingebaut sind und von denen die obere Umlaufrolle 5 mittels zylinderbeaufschlagten Kolbenstangen 18 gegen die untere Umlaufrolle 6 angestellt wird.The brake scaffold 20 hangs in the control frame 21 by means of leaf springs 24. The belt tension can be changed by means of load cells 23 without being distorted by deflections with a very low hysteresis and very high repeatability be measured. The brake and train frame 20 exists from the stand, oppositely arranged revolving rollers 5 and 6, which are installed in guides 18 of the stand 20 and of which the upper revolving roller 5 by means of piston rods 18 acted upon by a cylinder is turned against the lower roller 6.

Die Ketten 11 und 11a setzen sich aus einer Vielzahl miteinander gekoppelter, wagenartiger Rollenblöcke zusammen, die sich über die gesamte Breite eines in Pfeilrichtung 25 einlaufenden Bandes 4 erstrecken und mit zumindest beidseitigen Stützrädern 26 sowie Seitenführungsrollen 27 auf einer Laufbahn abrollen bzw. sich seitlich an diese legen. Die Laufbahn wird zu einem Mitnahmebereich geführt, in dem die gegenüberliegenden Rollenblöcke 11 das Band 4 beidseitig erfassen und zwischen sich einspannen.The chains 11 and 11a are composed of a large number of coupled, cart-like roller blocks that span the entire Extend the width of a band 4 arriving in the direction of arrow 25 and with at least two-sided support wheels 26 and side guide rollers 27 unroll on a running track or lie on it sideways. The career is led to a driving area in which the opposite Roll blocks 11 grasp the tape 4 on both sides and clamp between them.

Die Beschichtungsträger 13 sind mit einer elastischen Beschichtung 12 versehen. Die Beschichtungsbreite entspricht der Kettenteilung T und erstreckt sich innerhalb der Achsen der Stützräder 26 zweier benachbarter, d.h., aufeinanderfolgender Blöcke. Die Achsen bilden gleichzeitig einen definierten Drehpunkt. Die Beschichtung 12 wird durch Freiräume 30 so gestaltet, daß ein- und auslaufseitig ein besonders elastisches Anpassen der verquetschten Beschichtung möglich wird. Die Verquetschungshöhe der Beschichtung sollte so gering wie möglich sein, um die Walkarbeit so gering wie möglich zu halten. Gleichzeitig muß die Beschichtung eine sehr hohe Elastizität in Bandzugrichtung erhalten um über die unterschiedliche Schrägstellung der Beschichtung unterschiedliche Bandgeschwindigkeiten für die einzelnen Spaltbandstreifen zu ermöglichen, wie in Fig. 5 gezeigt. Dieser Funktionswiderspruch wurde durch die erfindungsgemäße Ausbildung erreicht, daß mittels der Stützbleche 31 und 32 über den Formfaktor die Verquetschungshöhe der Aufgabe angepaßt werden kann, die Schrägstellung der Beschichtung jedoch nur unwesentlich eingeschränkt wird. Die Figur 4 zeigt die Stellung der Beschichtung bei geringem Bandzug, die Fig. 5 bei hohem Bandzug.The coating supports 13 have an elastic coating 12 Mistake. The coating width corresponds to the chain pitch T and extends within the axes of the support wheels 26 of two adjacent, i.e. consecutive blocks. The axes form simultaneously a defined pivot point. The coating 12 is free 30 designed so that a particularly elastic adjustment on the inlet and outlet side the crushed coating becomes possible. The pinch height the coating should be as low as possible to avoid the Keep flexing work as low as possible. At the same time, the coating get a very high elasticity in the direction of tape tension about the different inclination of the coating To enable belt speeds for the individual slit strips, as shown in Fig. 5. This contradiction in terms of function was achieved by the inventive design that by means of the support plates 31 and 32 about the form factor the crushing height of the task can be adjusted, but the inclination of the coating is only marginally restricted. Figure 4 shows the position the coating with low tape tension, Fig. 5 with high tape tension.

Werden die Beschichtungsträger 13 mit Permanentmagneten 33 oder Magnetspulen 34 bestückt, die Wirbelstromfelder aufbauen, so können elektrisch leitfähige Bänder, insbesondere Bänder aus Aluminium, Kupfer, sowie ihre Legierungen, zum Einleiten von Bandzügen verwendet werden. Die Wagenkette wird dabei in aller Regel gegen die Bandlaufrichtung bewegt. Die Länge der Kontaktstrecke (Wirkstrecke) kann dem Bedarfsfall angepaßt werden.If the coating carrier 13 with permanent magnets 33 or Equipped solenoids 34, which build up eddy current fields, so electrically conductive strips, in particular strips made of aluminum, Copper, as well as their alloys, are used to initiate strip tension become. The carriage chain is usually against the belt running direction emotional. The length of the contact distance (effective distance) can Adjusted if necessary.

Diese Ausbildungsform gemäß Fig. 6 ist für Metallbänder mit höchstem Oberflächenanspruch von großem Interesse, da kein Kontakt zum Bremssystem vorhanden ist. Der Abstand zwischen den Permanentmagneten 33 oder Spulen 34 kann dadurch konstant gehalten werden, daß die Abstützungen der Umlaufrollen durch die elastischen Blöcke 35 eingestellt werden. Das Metallband 4 schwebt durch die Anziehungskräfte zwischen den Permanentmagneten 33 oder den Spulen 34. Der Schutzgurt 36 ist auch dargestellt. Werden die Zylinder 18 durch Spindelantriebe ersetzt, so kann der Abstand eingestellt werden und die Maschine erhält hiermit ein zusätzliches Regelglied.6 is for metal strips with the highest Surface requirements of great interest as there is no contact with the Braking system is present. The distance between the permanent magnets 33 or coils 34 can be kept constant in that the supports of the idler rollers are set by the elastic blocks 35 become. The metal band 4 floats due to the attractive forces between the permanent magnets 33 or the coils 34. The protective belt 36 is also shown. Are the cylinders 18 by spindle drives the distance can be adjusted and the machine hereby receives an additional control element.

Werden die Beschichtungsträger 13 mit Permanentmagneten 33 oder Magnetspulen 34 bestückt, die Magnetfelder aufbauen, so können magnetisierbare Metallbänder, zum Einleiten von Bandzügen verwendet werden. Die Wagenkette wird dabei in Bandlaufrichtung bewegt. Die Länge der Kontaktstrecke kann dem Bedarfsfall angepaßt werden.If the coating carrier 13 with permanent magnets 33 or Equipped with magnetic coils 34, which build up magnetic fields, so magnetizable Metal tapes, used to initiate tape pulls become. The carriage chain is moved in the direction of the belt. The The length of the contact path can be adjusted as required.

Diese Ausbildungsform ist für Metallbänder mit höchstem Oberflächenanspruch von großem Interesse, da nur auf einer Seite Kontakt zum Bremssystem vorhanden ist.This form of training is for metal strips with the highest surface demands of great interest as contact to the Braking system is present.

Claims (11)

Vorrichtung zum Ziehen oder Bremsen von Metallbändern bzw. Blechen, insbesondere für mehrere Schmalbänder (Spaltbänder) mit bandweise getrennter Bremswirkung, vorzugsweise in Bandlinien mit endlos umlaufenden Kettensystemen (26, 27), die das Band bzw. Blech (4) mitnehmen, gekennzeichnet durch einen linearen Bandzug mittels Wirbelstromsystem.Device for pulling or braking metal strips or sheets, in particular for a plurality of narrow strips (split strips) with a braking effect separated by strip, preferably in strip lines with endless chain systems (26, 27) which take the strip or sheet (4) along, characterized by a linear belt tension using eddy current system. Vorrichtung nach Anspruch 1, gekennzeichnet durch einen durch die Bewegung gegen die Bandlaufrichtung erzeugten linearen Bandzug.Apparatus according to claim 1, characterized by a linear strip tension generated by the movement against the strip running direction. Vorrichtung nach einem der Ansprüche 1 oder 2, gekennzeichnet durch Magnetfelder bewirkte Mitnahme- und/oder Rückhaltekräfte.Device according to one of claims 1 or 2, characterized by entrainment and / or retention forces caused by magnetic fields. Vorrichtung nach einem der Ansprüche 1 bis 3, gekennzeichnet durch Kettensysteme (26, 27) mit wagenartigen Rollenblöcken (11), die Magnetspulen (34) oder Permanentmagnete (33) tragen. Device according to one of claims 1 to 3, characterized by chain systems (26, 27) with carriage-like roller blocks (11) which carry magnet coils (34) or permanent magnets (33). Vorrichtung nach einem der Ansprüche 1 bis 4, gekennzeichnet durch die Bewegung eines Wirbelstromsystems gegen die Bandlaufrichtung.Device according to one of claims 1 to 4, characterized by the movement of an eddy current system against the tape running direction. Vorrichtung nach einem der Ansprüche 1 bis 4, gekennzeichnet durch die Bewegung eines Wirbelstromsystems mit der Bandlaufrichtung.Device according to one of claims 1 to 4, characterized by the movement of an eddy current system with the tape running direction. Vorrichtung nach einem der Ansprüche 4 bis 6, gekennzeichnet durch einen die Permanentmagneten (33) abdeckenden Schutzgurt (36).Device according to one of claims 4 to 6, characterized by a protective belt (36) covering the permanent magnets (33). Vorrichtung nach einem der Ansprüche 1 bis 7, gekennzeichnet durch eine Regelung des Abstandes zwischen zusammenwirkenden Kettensystemen (26, 27).Device according to one of claims 1 to 7, characterized by regulating the distance between interacting chain systems (26, 27). Vorrichtung nach Anspruch 8, gekennzeichnet durch Spindelantriebe zur stufenlosen Abstandsverstellung.Device according to claim 8, characterized by spindle drives for stepless distance adjustment. Vorrichtung nach einem der Ansprüche 1 bis 9, gekennzeichnet durch nur ein Kettensystem pro Gerüst (Fig. 7).Device according to one of claims 1 to 9, characterized by only one chain system per frame (Fig. 7). Vorrichtung nach einem der Ansprüche 1 bis 10, gekennzeichnet durch das Anordnen von Biegegerüsten und Bandschleifvorrichtungen zwischen Umlauf-Gerüsten.Device according to one of claims 1 to 10, characterized by the arrangement of bending stands and belt grinding devices between revolving stands.
EP03014045A 1998-11-11 1999-11-10 Driver system for devices for the drawing or braking of metal strips Expired - Lifetime EP1350576B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE29820111U 1998-11-11
DE1998152078 DE19852078A1 (en) 1998-11-11 1998-11-11 Elastic coating in devices for pulling and braking of metal strip can be adapted using shaping and filler parts for each task, to enable permanent magnets to be attached to roller blocks
DE29820111 1998-11-11
DE19852078 1998-11-11
DE29909850U DE29909850U1 (en) 1998-11-11 1999-04-19 Elastic coating in device for pulling or braking metal strips
DE29909850U 1999-04-19
EP99971746A EP1054743B1 (en) 1998-11-11 1999-11-10 Driver system for reducing the speed of or dragging metal strips

Related Parent Applications (1)

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EP99971746.5 Division 1999-11-10

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EP1350576A2 true EP1350576A2 (en) 2003-10-08
EP1350576A3 EP1350576A3 (en) 2004-02-04
EP1350576B1 EP1350576B1 (en) 2005-04-27

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EP03014045A Expired - Lifetime EP1350576B1 (en) 1998-11-11 1999-11-10 Driver system for devices for the drawing or braking of metal strips
EP99971746A Expired - Lifetime EP1054743B1 (en) 1998-11-11 1999-11-10 Driver system for reducing the speed of or dragging metal strips

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EP (2) EP1350576B1 (en)
AT (2) ATE294034T1 (en)
BR (1) BR9906891A (en)
CA (1) CA2317432C (en)
DE (2) DE59911996D1 (en)
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EP1350576A3 (en) 2004-02-04
ES2242125T3 (en) 2005-11-01
US6585140B2 (en) 2003-07-01
US6502734B1 (en) 2003-01-07
WO2000027554A1 (en) 2000-05-18
EP1054743A1 (en) 2000-11-29
EP1054743B1 (en) 2003-06-25
DE59911996D1 (en) 2005-06-02
ATE294034T1 (en) 2005-05-15
BR9906891A (en) 2000-10-17
DE59906096D1 (en) 2003-07-31
ATE243573T1 (en) 2003-07-15
ES2203253T3 (en) 2004-04-01
EP1350576B1 (en) 2005-04-27
CA2317432C (en) 2009-01-27
US20030066857A1 (en) 2003-04-10
CA2317432A1 (en) 2000-05-18

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