EP3930940A2 - Method and device for straightening wire or strip material - Google Patents

Method and device for straightening wire or strip material

Info

Publication number
EP3930940A2
EP3930940A2 EP20754611.0A EP20754611A EP3930940A2 EP 3930940 A2 EP3930940 A2 EP 3930940A2 EP 20754611 A EP20754611 A EP 20754611A EP 3930940 A2 EP3930940 A2 EP 3930940A2
Authority
EP
European Patent Office
Prior art keywords
straightening rollers
straightening
rollers
measured
wire
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
EP20754611.0A
Other languages
German (de)
French (fr)
Other versions
EP3930940B1 (en
Inventor
Arndt MÜHLENFELD
Walter Resch
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
Publication of EP3930940A2 publication Critical patent/EP3930940A2/en
Application granted granted Critical
Publication of EP3930940B1 publication Critical patent/EP3930940B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • B21F1/023—Straightening in a device rotating about the wire axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening
    • 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
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers

Definitions

  • the invention relates to a method for straightening wire or strip material by means of a dressage device with ver on opposite sides of the material passing through sets attacking straightening rollers, some of which are dependent on a model, which based on input data of the material and its passage through the dressage device determined data of the material and the dressage device has been determined stochastically, are automatically set so that the requirements for straightness are met, the position of at least one straightening roller is continuously adapted on the basis of the data recorded when passing through the dressage device, which for the straightness achieved are representative.
  • the invention has the task of specifying a closed loop Re for an autonomous method to straighten straightening material of unknown, variable curvature.
  • the process should ensure the desired straightness of the straightened wire with greater reliability. In the method mentioned at the outset, this is achieved in that
  • the temperature of the material is measured at the exit of each straightening roller or every straightening block.
  • the measurement (i) of the forces acting on the straightening rollers is expediently carried out by means of strain gauges arranged on the bearing bolts of the straightening rollers, which measure the bending moments in the axial, vertical and / or horizontal direction.
  • the measurement (ii) of the temperature records the deformation energy introduced into the object to be straightened. This measurement can be used to correct material properties that flow into the model, if necessary. It is possible that this measurement is only carried out at the beginning of a straightening process or for calibrating a straightening device.
  • the measurement (iii) of the position of the material is expediently carried out after each of the straightening rollers by measuring the deviation of the material from the axis of passage in the pitch direction of the straightening rollers.
  • Known optical or non-contact (eg magnetic) measuring methods come into consideration for this. This also applies to the appropriate measurement of the vibrations occurring on the wire material passing through, whose measured value is also entered into the model that controls the adjustment of the adjustable straightening rollers. It is conceivable that the position measurement (iii) is only carried out at the beginning of the method for calibration purposes, while the measurement of the forces acting on the straightening rollers is sufficient to carry out the method according to the invention during operation.
  • two dressage devices as mentioned above are passed through one behind the other by the material, one dressage device having horizontally arranged straightening rollers and the other vertically arranged straightening rollers.
  • the invention also relates to a device for carrying out the method according to the invention with a Dressurvor device with two mutually offset longitudinally arranged rows of non-powered straightening rollers that act on a wire passing through between the rows in order to straighten it, with some straightening rollers depending on one Model can be adjusted automatically to the material in such a way that the requirements for the straightness of the material emerging from the dressage device are met, the model being determined stochastically on the basis of input data entered for the wire and data from the dressage device and the material recorded in the dressage device is.
  • a device is mentioned in the DE-A cited above.
  • the invention consists in the fact that the straightening rollers of one row that first act on the material have fixed axes and the straightening roller that then acts on the same side of the material can be individually adjusted to the material passing through, and that the straightening rollers of the opposite row all of that Material can be hired, the first acting on the material straightening rollers of this series together and the straightening roller acting on the material at the same row individually adjustable or is, and the size and direction of the forces acting on the straightening rollers with means of this self-arranged measuring devices, such as strain gauges, as well as the temperature of the material can be measured by means of measuring devices arranged at the entrance and exit of the dressage device, with all measured values obtained being fed to the model controlling the adjustment of the adjustable straightening rollers.
  • the temperature of the material can be measured following one or more straightening rollers by means of measuring devices arranged there in each case, whereby all measured values obtained can also be fed to the model controlling the adjustment of the adjustable straightening rollers.
  • the position of the material following one or more straightening rollers can be measured by means of measuring devices arranged there, with all measured values obtained also being able to be fed to the model controlling the adjustment of the adjustable straightening rollers.
  • Fig. 1 shows a training device with a wire running through it
  • Fig. 2 shows the same training device with indicated measuring points of the forces occurring on the individual straightening rollers and the wire temperature
  • Fig. 3 shows a straightening roller with a strain gauge arranged on it shows.
  • the dressage device of FIGS. 1 and 2 has two rows of horizontal rows that are horizontally offset from one another Straightening rollers 3, 4, 6, 10. One row engages the wire to be straightened at the bottom and the other row engages the wire to be straightened at the top.
  • the material 1 to be straightened can also be strip material (not shown); In the following, the term material denotes the wire or strip material.
  • the straightening rollers 3, 4, 6, 10 have no rotary drive, the training device is traversed by the wire as material 1, which is moved in the direction of the arrow 2 by feed rollers (not shown). Normally, the wire passes through two dressage devices, each offset by 90 °, one behind the other, one training device having horizontal straightening rollers and the other training device having vertical straightening rollers.
  • the main working area of the invention comprises wire diameters between approximately 4 mm and approximately 20 mm.
  • the first two straightening rollers 3 of the lower row in FIGS. 1 and 2 have fixed axes of rotation.
  • the at this closing lower straightening roller 4 is individually adjustable by means of an adjusting device indicated at 5 to the material 1 going through de.
  • the three first straightening rollers 6 of the upper row can be adjusted together against the material 1 and for this purpose are mounted on a common carrier 7 which can be adjusted in height by means of a lever 8 by a servomotor 9.
  • the upper straightening roller 10 adjoining the upper straightening rollers 6 can be individually adjusted to the material by means of an adjusting device indicated at 11.
  • the material 1 heats up during straightening by a Richtrol lengarnitur.
  • the temperature measuring devices are at the Points 16 indicated. The temperature can also be measured at the exit of each of the straightening rollers 3, 4, 6, 10.
  • the measuring devices arranged following each of the straightening rollers 3, 4, 6, 10 for determining the position of the wire are not shown in FIG. These are known optical or magnetic measuring devices which measure the deviation of the material 1 from the axis of passage in or parallel to the setting direction of the straightening rollers 6, 4, 10, i.e. in the case shown, measure in the vertical direction.
  • a vibration measuring device is also not shown, which measures the vibrations that occur on the wire when the corrugated wires are straightened in order to eliminate the disturbance variables resulting therefrom.
  • strain gauges 17 are in the bearing pin 12 Straightening roller provided.
  • the strain gauges 17 are arranged parallel to one another in the bearing pin 12. They are also around the axis of the bearing pin 12 around in quadrant intervals (offset by 90 °).
  • other pressure or bending measuring sensors can be used in or on the bearing pin 12, e.g. Piezo sensors with a simple structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

The invention relates to a method for straightening wire or strip material by means of a straightening device comprising straightening rollers (3, 4, 6, 10) engaging on opposite sides of the passing-through material in an offset manner, of which, some are automatically activated according to a model which has been stochastically determined on the basis of input data of the material and data relating to the wire and the straightening device that is determined during the passing of the material through the straightening device, such that requirements of the straightening unit are met, wherein the position of at least one straightening roller is continuously adapted on the basis of said data detected during the passage through the straightening device, which data is representative of the target straightness, wherein (i), the size and direction of the forces acting on the straightening rollers and/or (ii) the temperature of the material before and after passing through the assembly of straightening rollers and/or (iii) the position of the material in relation to each of the straightening rollers are measured and the obtained measurement values are input into the model controlling the activation of the activatable straightening rollers.

Description

Verfahren und Vorrichtung zum Geraderichten Method and device for straightening
von Draht oder Bandmaterial of wire or strip material
Die Erfindung betrifft ein Verfahren zum Geraderichten von Draht oder Bandmaterial mittels einer Dressurvorrichtung mit an gegenüberliegenden Seiten des durchlaufenden Materials ver setzt angreifenden Richtrollen, von denen einige abhängig von einem Modell, welches anhand von Eingangsdaten des Materials und bei dessen Durchlauf durch die Dressurvorrichtung ermit telten Daten des Materials und der Dressurvorrichtung stocha stisch ermittelt worden ist, automatisch so angestellt werden, dass die Anforderungen an die Geradheit erfüllt werden, wobei die Stellung mindestens einer Richtrolle laufend adaptiert wird aufgrund der genannten, beim Durchlauf durch die Dressur vorrichtung erfassten Daten, welche für die erzielte Geradheit repräsentativ sind. The invention relates to a method for straightening wire or strip material by means of a dressage device with ver on opposite sides of the material passing through sets attacking straightening rollers, some of which are dependent on a model, which based on input data of the material and its passage through the dressage device determined data of the material and the dressage device has been determined stochastically, are automatically set so that the requirements for straightness are met, the position of at least one straightening roller is continuously adapted on the basis of the data recorded when passing through the dressage device, which for the straightness achieved are representative.
Ein derartiges Verfahren ist beschrieben in der DE-A-196 53 569. Diese Schrift spricht jedoch nur sehr allgemein von wäh rend des laufenden Richtprozesses gemessenen Produkt- und/oder Prozessdaten, die online in das Modell eingebracht werden und dieses verändern, ohne die dafür nötigen Messungen zu spezifi zieren. Es ist auch nicht klar, ob bzw. in welchem Ausmaß das Modell einen Rückschluss auf die genaue Geometrie des gerich teten Endproduktes zulässt. Such a method is described in DE-A-196 53 569. However, this document speaks only very generally of product and / or process data measured during the ongoing straightening process, which are entered online into the model and change it without the need for it to specify the necessary measurements. It is also not clear whether or to what extent the model allows conclusions to be drawn about the exact geometry of the final product.
Die Erfindung stellt sich die Aufgabe, einen geschlossenen Re gelkreis für ein autonomes Verfahren anzugeben, um Richtgut von unbekannter, variabler Krümmung geradezurichten. Das Ver fahren soll mit größerer Verlässlichkeit die angestrebte Ge radheit des gerichteten Drahtes gewährleisten. Dies wird beim eingangs genannten Verfahren dadurch erreicht, dass The invention has the task of specifying a closed loop Re for an autonomous method to straighten straightening material of unknown, variable curvature. The process should ensure the desired straightness of the straightened wire with greater reliability. In the method mentioned at the outset, this is achieved in that
(i) die Größe und Richtung der an den Richtrollen angreifen den Kräfte an den Richtrollen selbst und/oder (I) the size and direction of the forces acting on the straightening rollers and / or on the straightening rollers themselves
(ii) die Temperatur des Materials vor und nach dem Durchgang durch die Anordnung der Richtrollen und/oder (ii) the temperature of the material before and after passing through the arrangement of straightening rollers and / or
(iii) die Position des Materials im Anschluss an jede der Richtrollen gemessen und die erhaltenen Messwerte in das die Anstellung der anstellbaren Richtrollen steuernde Modell eingegeben werden. (iii) the position of the material following each of the straightening rollers is measured and the measured values obtained are entered into the model controlling the adjustment of the adjustable straightening rollers.
Vorteilhaft wird (ii) die Temperatur des Materials am Ausgang jeder Richtrolle oder jedes Richtblockes gemessen. Advantageously, (ii) the temperature of the material is measured at the exit of each straightening roller or every straightening block.
Die Messung (i) der an den Richtrollen angreifenden Kräfte erfolgt zweckmäßig mittels an den Lagerbolzen der Richtrollen angeordneter Dehnungsmessstreifen, welche die Biegemomente in axialer, vertikaler und/oder horizontaler Richtung messen. The measurement (i) of the forces acting on the straightening rollers is expediently carried out by means of strain gauges arranged on the bearing bolts of the straightening rollers, which measure the bending moments in the axial, vertical and / or horizontal direction.
Die Messung (ii) der Temperatur erfasst die in das Richtgut eingebrachte Umformungsenergie. Durch diese Messung können gegebenenfalls Materialeigenschaften, die in das Modell einfließen, korrigiert werden. Es ist möglich, dass diese Messung nur am Anfang eines Richtprozesses oder zum Kalibrieren einer Richtvorrichtung durchgeführt wird. The measurement (ii) of the temperature records the deformation energy introduced into the object to be straightened. This measurement can be used to correct material properties that flow into the model, if necessary. It is possible that this measurement is only carried out at the beginning of a straightening process or for calibrating a straightening device.
Die Messung (iii) der Position des Materials erfolgt zweckmäßig in Anschluss an jede der Richtrollen durch Messung der Abweichung des Materials von der Durchlaufachse in der Anstellrichtung der Richtrollen. Hierfür kommen bekannte optische oder berührungslose (z.B. magnetische) Messverfahren in Frage. Dies gilt auch für die außerdem für die zweckmäßige Messung der am durchlaufenden Drahtmaterials auftretenden Vibrationen, deren Messwert ebenso in das die Anstellung der anstellbaren Richtrollen steuernde Modell eingegeben wird. Es ist denkbar, dass die Positionsmessung (iii) nur zu Beginn des Verfahrens zu Kalibrationszwecken durchgeführt wird, während im laufenden Betrieb die Messung der an den Richtrollen angreifenden Kräfte zur Durchführung des erfindungsgemäßen Verfahrens genügt. The measurement (iii) of the position of the material is expediently carried out after each of the straightening rollers by measuring the deviation of the material from the axis of passage in the pitch direction of the straightening rollers. Known optical or non-contact (eg magnetic) measuring methods come into consideration for this. This also applies to the appropriate measurement of the vibrations occurring on the wire material passing through, whose measured value is also entered into the model that controls the adjustment of the adjustable straightening rollers. It is conceivable that the position measurement (iii) is only carried out at the beginning of the method for calibration purposes, while the measurement of the forces acting on the straightening rollers is sufficient to carry out the method according to the invention during operation.
Vorteilhaft werden zwei wie oben erwähnte Dressurvorrichtungen hintereinander vom Material durchlaufen, wobei eine Dressur vorrichtung horizontal angeordnete Richtrollen und die andere vertikal angeordnete Richtrollen aufweist. Advantageously, two dressage devices as mentioned above are passed through one behind the other by the material, one dressage device having horizontally arranged straightening rollers and the other vertically arranged straightening rollers.
Die Erfindung betrifft im übrigen eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens mit einer Dressurvor richtung mit zwei einander gegenüber längsversetzt angeordne ten Reihen von antriebslosen Richtrollen, die im Betrieb an einem zwischen den Reihen durchlaufenden Draht angreifen, um diesen geradezurichten, wobei einige Richtrollen abhängig von einem Modell automatisch gesteuert so an das Material anstell bar sind, dass die Anforderungen an die Geradheit des aus der Dressurvorrichtung austretenden Materials erfüllt sind, wobei das Modell anhand von eingegebenen Eingangsdaten des Drahtes und von in der Dressurvorrichtung erfassten Daten der Dressur vorrichtung und des Materials stochastisch ermittelt ist. Eine derartige Vorrichtung ist in der eingangs zitierten DE-A er wähnt . The invention also relates to a device for carrying out the method according to the invention with a Dressurvor device with two mutually offset longitudinally arranged rows of non-powered straightening rollers that act on a wire passing through between the rows in order to straighten it, with some straightening rollers depending on one Model can be adjusted automatically to the material in such a way that the requirements for the straightness of the material emerging from the dressage device are met, the model being determined stochastically on the basis of input data entered for the wire and data from the dressage device and the material recorded in the dressage device is. Such a device is mentioned in the DE-A cited above.
Die Erfindung besteht bei einer solchen Vorrichtung darin, dass die zuerst auf das Material einwirkenden Richtrollen der einen Reihe feststehende Achsen haben und die anschließend an derselben Seite des Materials angreifende Richtrolle einzeln für sich an das durchlaufenden Material anstellbar ist, und dass die Richtrollen der gegenüberliegenden Reihe alle an das Material anstellbar sind, wobei die zuerst auf das Material einwirkenden Richtrollen dieser Reihe gemeinsam und die an schließend am Material angreifende Richtrolle derselben Reihe einzeln für sich anstellbar sind bzw. ist, und wobei die Größe und Richtung der an den Richtrollen angreifenden Kräfte mit tels an diesen selbst angeordneten Messeinrichtungen, wie z.B. Dehnungsmessstreifen, sowie die Temperatur des Materials mittels am Eingang und Ausgang der Dressurvorrichtung angeordne ter Messeinrichtungen messbar sind bzw. ist, wobei alle erhal tenen Messwerte dem das Anstellen der anstellbaren Richtrollen steuernden Modell zuführbar sind. In such a device, the invention consists in the fact that the straightening rollers of one row that first act on the material have fixed axes and the straightening roller that then acts on the same side of the material can be individually adjusted to the material passing through, and that the straightening rollers of the opposite row all of that Material can be hired, the first acting on the material straightening rollers of this series together and the straightening roller acting on the material at the same row individually adjustable or is, and the size and direction of the forces acting on the straightening rollers with means of this self-arranged measuring devices, such as strain gauges, as well as the temperature of the material can be measured by means of measuring devices arranged at the entrance and exit of the dressage device, with all measured values obtained being fed to the model controlling the adjustment of the adjustable straightening rollers.
In einer Alternative der Erfindung ist die Temperatur des Ma terials im Anschluss an eine oder mehrere Richtrollen mittels dort jeweils angeordneter Messeinrichtungen messbar, wobei ebenfalls alle erhaltenen Messwerte dem das Anstellen der an stellbaren Richtrollen steuernden Modell zuführbar sind. In an alternative of the invention, the temperature of the material can be measured following one or more straightening rollers by means of measuring devices arranged there in each case, whereby all measured values obtained can also be fed to the model controlling the adjustment of the adjustable straightening rollers.
Bei einer weiteren Ausführungsform ist die Position des Mate rials im Anschluss an eine oder mehrere Richtrollen mittels dort jeweils angeordneter Messeinrichtungen messbar, wobei ebenfalls alle erhaltenen Messwerte dem das Anstellen der anstellbaren Richtrollen steuernden Modell zuführbar sind. In a further embodiment, the position of the material following one or more straightening rollers can be measured by means of measuring devices arranged there, with all measured values obtained also being able to be fed to the model controlling the adjustment of the adjustable straightening rollers.
Die Erfindung wird anhand der Zeichnung näher erläutert, worin Fig. 1 eine Dressurvorrichtung mit einem durch diese laufenden Draht, Fig. 2 dieselbe Dressurvorrichtung mit angedeuteten Messstellen der an den einzelnen Richtrollen auftretenden Kräfte und der Drahttemperatur und Fig. 3 eine Richtrolle mit daran angeordnetem Dehnungsmessstreifen zeigt. The invention is explained in more detail with reference to the drawing, in which Fig. 1 shows a training device with a wire running through it, Fig. 2 shows the same training device with indicated measuring points of the forces occurring on the individual straightening rollers and the wire temperature, and Fig. 3 shows a straightening roller with a strain gauge arranged on it shows.
Die Dressurvorrichtung der Fig. 1 und 2 besitzt zwei gegeneinander horizontal versetzt angeordnete Reihen horizontaler Richtrollen 3, 4, 6, 10. Eine Reihe greift am zu richtenden Draht unten und die andere Reihe am zu richtenden Draht oben an. Das zu richtende Material 1 kann auch Bandmaterial (nicht gezeigt) sein; im folgenden wird mit dem Ausdruck Material der Draht oder Bandmaterial bezeichnet. Die Richtrollen 3, 4, 6, 10 haben keinen Drehantrieb, die Dressurvorrichtung wird vom Draht als Material 1 durchlaufen, der durch nicht gezeigte Vorschubrollen in Richtung des Pfeiles 2 bewegt wird. Norma lerweise durchläuft der Draht hintereinander zwei zueinander jeweils um 90° versetzte Dressurvorrichtungen, wobei eine Dressurvorrichtung horizontale Richtrollen und die andere Dressurvorrichtung vertikale Richtrollen aufweist. Der Haupt- arbeitsbereich der Erfindung umfasst Drahtdurchmesser zwischen etwa 4 mm und etwa 20 mm. The dressage device of FIGS. 1 and 2 has two rows of horizontal rows that are horizontally offset from one another Straightening rollers 3, 4, 6, 10. One row engages the wire to be straightened at the bottom and the other row engages the wire to be straightened at the top. The material 1 to be straightened can also be strip material (not shown); In the following, the term material denotes the wire or strip material. The straightening rollers 3, 4, 6, 10 have no rotary drive, the training device is traversed by the wire as material 1, which is moved in the direction of the arrow 2 by feed rollers (not shown). Normally, the wire passes through two dressage devices, each offset by 90 °, one behind the other, one training device having horizontal straightening rollers and the other training device having vertical straightening rollers. The main working area of the invention comprises wire diameters between approximately 4 mm and approximately 20 mm.
Die ersten beiden Richtrollen 3 der in den Fig. 1 und 2 unteren Reihe haben feststehende Drehachsen. Die an diese an schließende untere Richtrolle 4 ist mittels einer bei 5 ange deuteten Stellvorrichtung einzeln für sich an das durchlaufen de Material 1 anstellbar. Die drei ersten Richtrollen 6 der oberen Reihe sind gemeinsam an das Material 1 anstellbar und sind zu diesem Zweck auf einem gemeinsamen Träger 7 gelagert, der mittels eines Hebels 8 durch einen Stellmotor 9 höhenver- stellbar ist. Die an die oberen Richtrollen 6 anschließende obere Richtrolle 10 ist mittels einer bei 11 angedeuteten Stellvorrichtung einzeln für sich an das Material anstellbar. The first two straightening rollers 3 of the lower row in FIGS. 1 and 2 have fixed axes of rotation. The at this closing lower straightening roller 4 is individually adjustable by means of an adjusting device indicated at 5 to the material 1 going through de. The three first straightening rollers 6 of the upper row can be adjusted together against the material 1 and for this purpose are mounted on a common carrier 7 which can be adjusted in height by means of a lever 8 by a servomotor 9. The upper straightening roller 10 adjoining the upper straightening rollers 6 can be individually adjusted to the material by means of an adjusting device indicated at 11.
Fig. 2 veranschaulicht die mit f bezeichneten Messungen der verschiedenen an den einzelnen Richtrollen angreifenden Kräfte sowie die Temperaturmessungen am Material 1 vor und nach dem Durchgang durch die Anordnung der Richtrollen. Im allgemeinen erwärmt sich das Material 1 beim Richten durch eine Richtrol lengarnitur. Die Temperaturmesseinrichtungen sind bei den Punkten 16 angedeutet. Die Temperaturmessung kann auch am Ausgang jeder der Richtrollen 3, 4, 6, 10 erfolgen. 2 illustrates the measurements, denoted by f, of the various forces acting on the individual straightening rollers and the temperature measurements on the material 1 before and after passing through the arrangement of the straightening rollers. In general, the material 1 heats up during straightening by a Richtrol lengarnitur. The temperature measuring devices are at the Points 16 indicated. The temperature can also be measured at the exit of each of the straightening rollers 3, 4, 6, 10.
Die im Anschluss an jede der Richtrollen 3, 4, 6, 10 angeordneten Messeinrichtungen zur Feststellung der Position des Drahtes sind in Fig. 2 nicht eingezeichnet. Es handelt sich dabei um bekannte optische oder magnetische Messeinrichtungen, welche die Abweichung des Materials 1 von der Durchlaufachse in bzw. parallel zur Anstellrichtung der Richtrollen 6, 4, 10, d.h. im dargestellten Fall in der Vertikalrichtung, messen. Nicht eingezeichnet ist auch eine Vibrationsmesseinrichtung, welche die im Fall des Geraderichtens geriffelter Drähte am Draht auftretenden Vibrationen misst, um die daraus resultierenden Störgrößen zu eliminieren. The measuring devices arranged following each of the straightening rollers 3, 4, 6, 10 for determining the position of the wire are not shown in FIG. These are known optical or magnetic measuring devices which measure the deviation of the material 1 from the axis of passage in or parallel to the setting direction of the straightening rollers 6, 4, 10, i.e. in the case shown, measure in the vertical direction. A vibration measuring device is also not shown, which measures the vibrations that occur on the wire when the corrugated wires are straightened in order to eliminate the disturbance variables resulting therefrom.
Alle erwähnten Messgrößen werden in das die Anstellung der an stellbaren Richtrollen 6, 4, 10 steuernde Modell eingegeben. All the measured variables mentioned are entered into the model that controls the adjustment of the adjustable straightening rollers 6, 4, 10.
Fig. 3 zeigt eine Richtrolle 13 in einem größeren Maßstab mit an ihrem Lagerbolzen 12 in jeweils einer Nut 15 angeordneten Dehnungsmessstreifen 17. Für eine verbesserte Messung von Kräften und Kraftrichtungen, die auf eine Rolle wirken, sind bis zu vier Dehnungsmessstreifen 17 im Lagerbolzen 12 einer Richtrolle vorgesehen. Dabei sind die Dehnungsmessstreifen 17 parallel zueinander im Lagerbolzen 12 angeordnet. Sie sind ferner um die Achse des Lagerbolzens 12 herum in Viertelkreis abständen (um 90° versetzt) angeordnet. Anstatt der Dehnungs- messtreifen 17, die den Vorteil haben, einfach aufgebaut und ausreichend messgenau zu sein, können andere Druck- oder Bie gungsmesssensoren in oder an den Lagerbolzen 12 verwendet wer den, z.B. ebenso einfach aufgebaute Piezosensoren . 3 shows a straightening roller 13 on a larger scale with strain gauges 17 arranged on its bearing pin 12 in a groove 15 each. For an improved measurement of forces and directions of force acting on a roller, up to four strain gauges 17 are in the bearing pin 12 Straightening roller provided. The strain gauges 17 are arranged parallel to one another in the bearing pin 12. They are also around the axis of the bearing pin 12 around in quadrant intervals (offset by 90 °). Instead of the strain gauges 17, which have the advantage of being simple in construction and with sufficient measurement accuracy, other pressure or bending measuring sensors can be used in or on the bearing pin 12, e.g. Piezo sensors with a simple structure.

Claims

Patentansprüche : Patent claims:
1. Verfahren zum Geraderichten von Draht oder Bandmaterial mittels einer Dressurvorrichtung mit an gegenüberliegenden Seiten des durchlaufenden Materials (1) versetzt angrei fenden Richtrollen (3, 4, 6, 10), von denen einige abhängig von einem Modell, das anhand von Eingangsdaten des Materials (1) und bei dessen Durchlauf durch die Dressurvor richtung ermittelten Daten des Materials (1) und der Dres survorrichtung stochastisch ermittelt worden ist, automa tisch so angestellt werden, dass die Anforderungen an die Geradheit erfüllt werden, wobei die Stellung mindestens einer Richtrolle laufend adaptiert wird aufgrund der ge nannten, beim Durchlauf durch die Dressurvorrichtung er fassten Daten, welche für die erzielte Geradheit repräsen tativ sind, dadurch gekennzeichnet, dass 1. Method for straightening wire or strip material by means of a dressage device with on opposite sides of the material passing through (1) offset angrei fenden straightening rollers (3, 4, 6, 10), some of which depend on a model that is based on input data of the material (1) and the data of the material (1) and the dressing device ascertained stochastically during its passage through the dressage device, are automatically set so that the requirements for straightness are met, the position of at least one straightening roller being continuously adapted is on the basis of the ge called data collected during the passage through the dressage device, which are representative of the straightness achieved, characterized in that
(i) die Größe und Richtung der an den Richtrollen (3, 4, (i) the size and direction of the straightening rollers (3, 4,
6, 10) angreifenden Kräfte an den Richtrollen selbst und/ oder 6, 10) forces acting on the straightening rollers themselves and / or
(ii) die Temperatur des Materials (1) vor und nach dem (ii) the temperature of the material (1) before and after
Durchgang durch die Anordnung der Richtrollen (3, 4, 6,Passage through the arrangement of the straightening rollers (3, 4, 6,
10) und/oder 10) and / or
(iii) die Position des Materials (1) im Anschluss an jede der Richtrollen gemessen und die erhaltenen Messwerte in das die Anstellung der anstellbaren Richtrollen (6, 4, 10) steuernde Modell eingegeben werden. (iii) the position of the material (1) following each of the straightening rollers is measured and the measured values obtained are entered into the model controlling the adjustment of the adjustable straightening rollers (6, 4, 10).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Temperatur des Drahtes oder Bandmaterials am Ausgang jeder Richtrolle (3, 4, 6, 10) gemessen wird. 2. The method according to claim 1, characterized in that the temperature of the wire or strip material is measured at the exit of each straightening roller (3, 4, 6, 10).
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zur Ermittlung der an den Richtrollen (3, 4, 6, 10) angreifenden Kräfte mittels an den Lagerbolzen (12) der Richtrollen (3, 4, 6, 10) angeordneter Dehnungsmessstrei fen (17) die Biegemomente in axialer, vertikaler und/oder horizontaler Richtung gemessen werden. 3. The method according to claim 1 or 2, characterized in that to determine the on the straightening rollers (3, 4, 6, 10) acting forces by means of strain gauges (17) arranged on the bearing bolts (12) of the straightening rollers (3, 4, 6, 10), the bending moments are measured in the axial, vertical and / or horizontal direction.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch ge kennzeichnet, dass die Messung der Position des Drahtes oder Bandmaterials im Anschluss an jede der Richtrollen (3, 4, 6, 10) eine Messung der Abweichung des Materials4. The method according to any one of claims 1 to 3, characterized in that the measurement of the position of the wire or strip material following each of the straightening rollers (3, 4, 6, 10) is a measurement of the deviation of the material
(1) von der Durchlaufachse in bzw. parallel zur Anstell richtung der Richtrollen (3, 4, 6, 10) ist. (1) from the axis of passage in or parallel to the adjustment direction of the straightening rollers (3, 4, 6, 10).
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch ge kennzeichnet, dass außerdem die am durchlaufenden Draht oder Bandmaterial auftretenden Vibrationen gemessen werden und der Messwert ebenso in das die Anstellung der anstell baren Richtrollen (4, 6, 10) steuernde Modell eingegeben wird . 5. The method according to any one of claims 1 to 4, characterized in that the vibrations occurring on the wire or strip material passing through are also measured and the measured value is also entered into the model controlling the adjustment of the adjustable straightening rollers (4, 6, 10) .
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch ge kennzeichnet, dass zwei Dressurvorrichtungen hintereinan der vom Draht oder vom Bandmaterial durchlaufen werden, wobei eine Dressurvorrichtung horizontal angeordnete Richtrollen (3, 4, 6, 10) und die andere vertikal angeord nete Richtrollen aufweist. 6. The method according to any one of claims 1 to 5, characterized in that two dressage devices are passed back one another by the wire or the strip material, one dressage device horizontally arranged straightening rollers (3, 4, 6, 10) and the other vertically angeord designated straightening rollers having.
7. Vorrichtung zur Durchführung des Verfahrens zum Gerade richten von Draht oder Bandmaterial nach einem der Ansprü che 1 bis 6, mit einer Dressurvorrichtung mit zwei einan der gegenüber längsversetzt angeordneten Reihen von an triebslosen Richtrollen (3, 4, 6, 10), die im Betrieb an einem zwischen den Reihen durchlaufenden Material (1) an greifen, um dieses geradezurichten, wobei einige Richtrol- len (6, 4, 10) abhängig von einem Modell automatisch ge steuert so an das Material (1) anstellbar sind, dass die Anforderungen an die Geradheit des aus der Dressurvorrich tung austretenden Materials erfüllt sind, wobei das Modell anhand von eingegebenen Eingangsdaten des Materials (1) und von in der Dressurvorrichtung erfassten Daten der Dressurvorrichtung und des Materials stochastisch ermittelt ist, dadurch gekennzeichnet, dass die zuerst auf das Material (1) einwirkenden Richtrollen (3) der einen Reihe feststehende Achsen haben und die anschließend an dersel ben Seite des Materials (1) angreifende Richtrolle (4) einzeln für sich an das durchlaufenden Material (1) anstellbar ist, und dass die Richtrollen (6, 10) der gegenüberliegenden Reihe alle an das Material (1) anstellbar sind, wobei die zuerst auf das Material (1) einwirkenden Richtrollen (6) dieser Reihe gemeinsam und die anschlie ßend am Material (1) angreifende Richtrolle (10) derselben Reihe einzeln für sich anstellbar sind bzw. ist, und wobei die Größe und Richtung der an den Richtrollen (3, 4, 6,7. Device for carrying out the method for straightening wire or strip material according to one of Ansprü che 1 to 6, with a training device with two einan the opposite longitudinally offset rows of driveless straightening rollers (3, 4, 6, 10), which in Operation on a material (1) passing through between the rows to straighten it, with some straightening rollers len (6, 4, 10) depending on a model, automatically controlled, can be adjusted to the material (1) in such a way that the requirements for the straightness of the material emerging from the dressage device are met, the model based on input data entered for the material (1) and is stochastically determined from data of the dressage device and the material recorded in the dressage device, characterized in that the straightening rollers (3) of the one row which first act on the material (1) have fixed axes and then on the same side of the Material (1) attacking straightening roller (4) can be individually adjusted to the material (1) passing through, and that the straightening rollers (6, 10) of the opposite row can all be adjusted to the material (1), the first on the material (1) acting straightening rollers (6) of this row together and the then ßend on the material (1) acting straightening roller (10) of the same row can be individually adjusted or, and where the size and direction of the straightening rollers (3, 4, 6,
10) angreifenden Kräfte mittels an diesen selbst angeord neten Messeinrichtungen, wie z.B. Dehnungsmessstreifen (17), sowie die Temperatur des Materials (1) mittels am Eingang und Ausgang der Dressurvorrichtung angeordneter Messeinrichtungen (16) messbar sind bzw. ist, wobei alle erhaltenen Messwerte dem das Anstellen der anstellbaren Richtrollen (6, 4, 10) steuernden Modell zuführbar sind. 10) acting forces by means of measuring devices arranged on them, e.g. Strain gauges (17) and the temperature of the material (1) can be or is measurable by means of measuring devices (16) arranged at the entrance and exit of the training device, with all measured values obtained being the model controlling the adjustment of the adjustable straightening rollers (6, 4, 10) are supplied.
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Temperatur des Materials (1) im Anschluss an eine oder mehrere Richtrollen (3, 4, 6, 10) mittels dort jeweils an geordneter Messeinrichtungen messbar ist, wobei ebenfalls alle erhaltenen Messwerte dem das Anstellen der anstellba- ren Richtrollen (6, 4, 10) steuernden Modell zuführbar sind. 8. The device according to claim 7, characterized in that the temperature of the material (1) following one or more straightening rollers (3, 4, 6, 10) can be measured by means of arranged measuring devices there, with all measured values also corresponding to the Setting the adjustable Ren straightening rollers (6, 4, 10) can be fed to the controlling model.
9. Vorrichtung nach Anspruch 7 oder 8, dadurch gekennzeich- net, dass die Position des Materials (1) im Anschluss an eine oder mehrere Richtrollen (3, 4, 6, 10) mittels dort jeweils angeordneter Messeinrichtungen messbar ist, wobei ebenfalls alle erhaltenen Messwerte dem das Anstellen der anstellbaren Richtrollen (6, 4, 10) steuernden Modell zuführbar sind. 9. Apparatus according to claim 7 or 8, characterized in that the position of the material (1) following one or more straightening rollers (3, 4, 6, 10) can be measured by means of measuring devices arranged there, all of which are also obtained Measured values can be fed to the model controlling the adjustment of the adjustable straightening rollers (6, 4, 10).
EP20754611.0A 2019-02-28 2020-01-28 Method and device for straightening wire or strip material Active EP3930940B1 (en)

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TWI732455B (en) 2021-07-01
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BR112021013352A2 (en) 2021-09-14
IL285670A (en) 2021-10-31

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