EP0449032B1 - Method for controlling the driving speed of draw plates of a straight-lined wire drawing machine - Google Patents

Method for controlling the driving speed of draw plates of a straight-lined wire drawing machine Download PDF

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Publication number
EP0449032B1
EP0449032B1 EP91103788A EP91103788A EP0449032B1 EP 0449032 B1 EP0449032 B1 EP 0449032B1 EP 91103788 A EP91103788 A EP 91103788A EP 91103788 A EP91103788 A EP 91103788A EP 0449032 B1 EP0449032 B1 EP 0449032B1
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European Patent Office
Prior art keywords
wire
automatic
follower
control
straight
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EP91103788A
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German (de)
French (fr)
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EP0449032A3 (en
EP0449032A2 (en
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Gustav Matthies
Wolf-Dieter Fink
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Kolbus GmbH and Co KG
Herborn and Breitenbach GmbH and Co KG
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Kolbus GmbH and Co KG
Herborn and Breitenbach GmbH and Co KG
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Priority to AT91103788T priority Critical patent/ATE100000T1/en
Publication of EP0449032A2 publication Critical patent/EP0449032A2/en
Publication of EP0449032A3 publication Critical patent/EP0449032A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
    • B21C1/12—Regulating or controlling speed of drawing drums, e.g. to influence tension; Drives; Stop or relief mechanisms

Definitions

  • the invention relates to a method for controlling and regulating the drive speed of drawing disks in a multi-stage, smooth and straight pull wire drawing machine in which a drawing disk is assigned to each drawing die and each drawing disk is driven by means of a speed-controlled or speed-controlled drive.
  • wires are drawn from the drawing disks by means of drawing tools without axial twisting on straight drawing machines which operate without sliding and without wire accumulation.
  • Each drawing disk has an individual drive which adjusts the drive speed of the drawing disk by means of corresponding electrical or mechanical control devices for the respective wire extension.
  • Multi-stage wire drawing machines are used, in which the working speed of the drawing disks is regulated via the wire tension by means of so-called dancer rollers, which are located on tensioning arms and steer the wire during the transition from a drawing disk to the following drawing tool, in order to control the intervention by changing the wire tension Trigger the drive of the pull washers.
  • a wire drawing machine of this type can be seen, for example, from DE-PS 1 072 216.
  • the steplessly variable transmissions which are adjustable by the wire tension and act on the individual drawing disks are connected in series such that the output speed of one is the input speed of the other.
  • the drive of a controllable drawing disk is derived on the output side of each transmission.
  • An increase in the wire loop by increasing the speed of the upstream pulling disk triggers a control process, which causes an increase in the basic speed of all the pulling disks upstream of the control point while maintaining their specified speed ratio without taking up the control range of the continuously variable transmission.
  • Multi-strand wire drawing machines in which the drive speed of the drawing disks over the wire tension using dancers or Tracing rollers are regulated, have the advantage over the direct drawing machines that the working speed of the drawing disks adjusts itself automatically.
  • the object of the invention is to provide a method for controlling and regulating the drive speed of drawing disks in a multi-stage, smooth and straight pull wire drawing machine of the generic type, which with regard to starting without manual intervention, an automatic, functionally reliable setting of the speeds and reproducible Counterforce enabled.
  • the object is achieved in that in the start-up phase of the wire drawing machine the adaptation of the speeds of the individual drawing disk drives to the process-related parameters (wire diameter or wire cross-section decrease) in a setpoint cascade Via a feeler roller position control, which automatically adjusts the setpoint cascade, the adjustment being proportional to the speed ratios of the drawing disk drives and independent of the absolute speeds or setpoints, and that the feeler rollers are slowly moved to an end position via a control command to the feeler roller position control continuous transition to the direct straight pull and the further regulation of the drive speed is taken over by the known counter-pull regulation or control method in the straight pull and the feeler rollers are controlled out of the wire area.
  • 3 feeler rollers 4 are installed between drawing disks 2 and drawing dies.
  • the drawing disks 2 are driven in a rotating manner by means of speed-controlled drive devices 7 with drive control 8.
  • the wire drawing machine is started after threading the wire 1 as with drawing machines with dancer or feeler rollers, the wire drawing machine initially running at a minimal production speed.
  • the speed of the individual drawing drives is adjusted to the process-related parameters (wire diameter or wire cross-section decrease) in a setpoint cascade via a feeler roller position control, which automatically adjusts the setpoint cascade, the adjustment being proportional to the speed ratios of the drawing disk drives or Cross-sectional ratios of the wire and independent of the absolute speeds or setpoints.
  • the feeler rollers 4 reach the desired position (a) near the stretched wire guide via the feeler roller position controller 11 in accordance with the desired value (A).
  • the feeler rollers 4 are slowly and smoothly steered out of the area of the wire 1 and reach the end position (b). Removing the tracer rollers from the wire area leads to a considerable reduction in wear on the rollers.
  • the feeler roller position controller 11 is switched on or adapted to its new task as a counter-tension controller.
  • a modified method it is provided to set the traction roller restoring force via a control command before the command "move tracer rollers to end position", so that the desired counterforce is generated via the corresponding angle.
  • the feeler roller position controller 11 is switched on as a counter-pull controller.
  • the feeler rollers 4 are slowly steered out of the area of the wire 1 and reach position (b). Controlling the feeler rollers 4 out of the wire area means that the pull drive with controller 11 registers the relief and adjusts until the old pull in the stretched wire position (straight pull) is reached again.
  • the feeler roller position controller and the counter-pull controller are connected in cascade and each of the controllers is arranged as a subordinate control loop or the feeler roller position controller and the counter-pull controller are designed as parallel controllers. Furthermore, the feeler roller position controller and the counter-pull controller are realized with a single adaptive controller, in which the respective parameters (proportional gain and readjustment time) are switched according to the operating mode (touch roller controller or counter-pull controller) and a bumpless transition takes place in the wire by selecting the transition behavior.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

In a method for controlling the driving speed of draw plates in a multi-stage straight-lined wire drawing machine operating without slip, in which each drawing die is assigned one draw plate and each draw plate is driven by means of a speed-regulated or speed-controlled drive, the adaptation of the speeds of the individual drawing-die drives to the process-related parameters (wire diameter or reduction in wire cross-section) in the starting phase of the wire drawing machine is performed in a setpoint cascade via a feeler-roll position control which automatically matches the setpoint cascade, matching being proportional to the speed ratios of the draw-plate drives and independent of the absolute speeds or setpoints, and the feeler rolls (4) are transferred slowly into an end position for the continuous transition to direct straight-lined drawing by a control command to the feeler-roll position control, and the further control of the driving speed is assumed by the known back tension regulation or control method in straight-lined drawing mode and the feeler rolls (4) are guided out of the region of the wire. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zum Steuern und Regeln der Antriebsgeschwindigkeit von Ziehscheiben bei einer mehrstufigen, gleitlos und im Geradeauszug arbeitenden Drahtziehmaschine, in der jedem Ziehstein eine Ziehscheibe zugeordnet und jede Ziehscheibe mittels eines drehzahlgeregelten oder drehzahlgesteuerten Antriebes angetrieben wird.The invention relates to a method for controlling and regulating the drive speed of drawing disks in a multi-stage, smooth and straight pull wire drawing machine in which a drawing disk is assigned to each drawing die and each drawing disk is driven by means of a speed-controlled or speed-controlled drive.

Bekanntlich werden Drähte auf gleitlos arbeitenden Geradeausziehmaschinen ohne Drahtansammlung von den Ziehscheiben durch Ziehwerkzeuge ohne Axialverdrehung gezogen. Dabei besitzt jede Ziehscheibe einen Einzelantrieb, der die Antriebsgeschwindigkeit der Ziehscheibe durch entsprechende elektrische oder mechanische Steuervorrichtungen der jeweiligen Drahtverlängerung anpaßt. Zur Zugkraftübertragung unter Vermeidung von Schlupf muß zwischen Draht und Ziehscheibe Reibschluß herrschen, was dann erreicht ist, wenn der von der Ziehscheibe zum Ziehwerkzeug laufende Draht unter einer definierten Gegenzugkraft steht.As is known, wires are drawn from the drawing disks by means of drawing tools without axial twisting on straight drawing machines which operate without sliding and without wire accumulation. Each drawing disk has an individual drive which adjusts the drive speed of the drawing disk by means of corresponding electrical or mechanical control devices for the respective wire extension. In order to transmit traction while avoiding slippage, there must be a frictional connection between the wire and the drawing disk, which is achieved when the wire running from the drawing disk to the drawing tool is under a defined counter-pulling force.

Zum Einsatz gelangen mehrstufige Drahtziehmaschinen, bei denen die Arbeitsgeschwindigkeit der Ziehscheiben über die Drahtspannung mittels sogenannter Tänzerrollen geregelt wird, die sich an Spannarmen befinden und den Draht beim Übergang von einer Ziehscheibe zum folgenden Ziehwerkzeug aus lenken, um somit durch Veränderung der Drahtspannung einen Regeleingriff für den Antrieb der Ziehscheiben auslösen.Multi-stage wire drawing machines are used, in which the working speed of the drawing disks is regulated via the wire tension by means of so-called dancer rollers, which are located on tensioning arms and steer the wire during the transition from a drawing disk to the following drawing tool, in order to control the intervention by changing the wire tension Trigger the drive of the pull washers.

Eine Drahtziehmaschine dieser Bauart geht beispielsweise aus der DE-PS 1 072 216 hervor. Dabei sind die durch die Drahtspannung verstellbaren, auf die einzelnen Ziehscheiben wirkenden stufenlos regelbaren Getriebe derart hintereinandergeschaltet, daß die Ausgangsdrehzahl des einen die Eingangsdrehzahl des anderen ist. An der Ausgangsseite jedes Getriebes ist der Antrieb einer regelbaren Ziehscheibe abgeleitet. Eine Vergrößerung der Drahtschleife durch Erhöhung der Drehzahl der vorgeordneten Ziehscheibe löst einen Regelvorgang aus, was eine Steigerung der Grunddrehzahlen aller der Regelstelle vorgeordneten Ziehscheiben unter Aufrechterhaltung ihres vorgegebenen Drehzahlverhältnisses bewirkt, ohne den Regelbereich der stufenlosen Getriebe in Anspruch zu nehmen.A wire drawing machine of this type can be seen, for example, from DE-PS 1 072 216. The steplessly variable transmissions which are adjustable by the wire tension and act on the individual drawing disks are connected in series such that the output speed of one is the input speed of the other. The drive of a controllable drawing disk is derived on the output side of each transmission. An increase in the wire loop by increasing the speed of the upstream pulling disk triggers a control process, which causes an increase in the basic speed of all the pulling disks upstream of the control point while maintaining their specified speed ratio without taking up the control range of the continuously variable transmission.

Aus der DE-OS 3 009 779 ist ferner ein Verfahren zur Antriebsregelung für Geradeausziehmaschinen bekannt, bei dem ein sich durch die Gegenzugkraft zwischen Ziehstein und Ziehscheibe einstellender Drahtbogen abgetastet wird und als Stellgröße für den Antrieb dient und die Krümmung des Bogens das Maß für die Übereinstimmung der Drehzahlen zweier benachbarter Ziehscheiben ist. Mit diesem Verfahren wird die Gegenzugkraft, mit der der Draht zwischen den Ziehscheiben unter Spannung gehalten wird zur Antriebsregelung der Antriebsmotore genutzt.From DE-OS 3 009 779 a method for drive control for straight-pulling machines is also known, in which a wire arch which is set by the counterforce between the drawing die and the drawing disk is scanned and serves as a manipulated variable for the drive, and the curvature of the bow is the measure of the match is the speed of two adjacent drawing disks. With this process, the counterforce with which the wire between the drawing disks is kept under tension is used to control the drive of the drive motors.

Mehrzügige Drahtziehmaschinen, bei denen die Antriebsgeschwindigkeit der Ziehscheiben über die Drahtspannung unter Verwendung von Tänzer- oder Tastrollen geregelt wird, haben gegenüber den im direkten Geradeauszug arbeitenden Drahtziehmaschinen den Vorteil, daß sich die Arbeitsgeschwindigkeit der Ziehscheiben automatisch einregelt.Multi-strand wire drawing machines, in which the drive speed of the drawing disks over the wire tension using dancers or Tracing rollers are regulated, have the advantage over the direct drawing machines that the working speed of the drawing disks adjusts itself automatically.

Andererseits sind die im direkten Geradeauszug arbeitenden Ziehmaschinen wegen ihrer einfachen Drahtführung, die sich aus dem konstanten Einlaufwinkel des Drahtes in den Ziehstein ergibt, den Ziehmaschinen mit Tänzer- oder Tastrollen überlegen, ein schwerwiegender Nachteil jedoch resultiert aus dem manuellen, zeitaufwendigen Einstellen der Ziehmaschine, derart, daß jeder einzelne Ziehscheibenantrieb beim Einziehen des Drahtes auf die Drehzahl eingestellt werden muß, wobei die korrekte Drehzahl dann erreicht ist, wenn der Draht zwischen den Ziehscheiben straff geführt ist und sich der Gegenzug im zulässigen Bereich befindet. Beide Vorgänge, und zwar ein möglichst rationelles Einstellen der Drehzahlen und das korrekte Einstellen der Gegenzugkraft sind vom Anlagenbediener abhängig. Insbesondere das Festlegen der Gegenzugkraft basiert allein auf dem Erfahrungswissen und den Fähigkeiten des Bedieners mit der Folge, daß sich exakte Einstellwerte nicht erzielen lassen und auch nicht reproduzierbar sind.On the other hand, because of their simple wire routing, which results from the constant entry angle of the wire into the drawing die, the drawing machines working in the direct straight line are superior to the drawing machines with dancer or feeler rollers, but a serious disadvantage results from the manual, time-consuming adjustment of the drawing machine, such that each individual pulling disk drive must be set to the speed when pulling in the wire, the correct speed being reached when the wire between the pulling disks is taut and the return is in the permissible range. Both processes, namely the most rational setting of the speeds and the correct setting of the counterforce, depend on the system operator. In particular, the determination of the counterforce is based solely on the experience and skills of the operator, with the result that exact setting values cannot be achieved and are also not reproducible.

Die Aufgabe der Erfindung besteht darin, ein Verfahren zum Steuern und Regeln der Antriebsgeschwindigkeit von Ziehscheiben bei einer mehrstufigen, gleitlos und im Geradeauszug arbeitenden Drahtziehmaschine der gattungsgemäßen Art zu schaffen, das im Hinblick auf ein Anfahren ohne manuellen Eingriff ein automatisches funktionssicheres Einstellen der Drehzahlen sowie reproduzierbare Gegenzugkräfte ermöglicht.The object of the invention is to provide a method for controlling and regulating the drive speed of drawing disks in a multi-stage, smooth and straight pull wire drawing machine of the generic type, which with regard to starting without manual intervention, an automatic, functionally reliable setting of the speeds and reproducible Counterforce enabled.

Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß in der Anlaufphase der Drahtziehmaschine die Anpassung der Drehzahlen der einzelnen Ziehscheibenantriebe an die prozeßbedingten Parameter (Drahtdurchmesser bzw. Drahtquerschnittsabnahme) in einer Sollwertkaskade über eine Tastrollen-Lageregelung erfolgt, die die Sollwertkaskade automatisch abgleicht, wobei der Abgleich proportional zu den Drehzahlverhältnissen der Ziehscheibenantriebe und unabhängig von den absoluten Drehzahlen bzw. Sollwerten ist, und daß über einen Steuerbefehl an die Tastrollen-Lageregelung die Tastrollen langsam in eine Endlage zum kontinuierlichen Übergang in den direkten Geradeauszug überführt werden und die weitere Regelung der Antriebsgeschwindigkeit von dem bekannten Gegenzugregelungs- bzw. steuerungsverfahren im Geradeauszug übernommen wird und die Tastrollen aus dem Drahtbereich herausgesteuert werden.According to the invention the object is achieved in that in the start-up phase of the wire drawing machine the adaptation of the speeds of the individual drawing disk drives to the process-related parameters (wire diameter or wire cross-section decrease) in a setpoint cascade Via a feeler roller position control, which automatically adjusts the setpoint cascade, the adjustment being proportional to the speed ratios of the drawing disk drives and independent of the absolute speeds or setpoints, and that the feeler rollers are slowly moved to an end position via a control command to the feeler roller position control continuous transition to the direct straight pull and the further regulation of the drive speed is taken over by the known counter-pull regulation or control method in the straight pull and the feeler rollers are controlled out of the wire area.

Weitere vorteilhafte Verfahrenschritte ergeben sich aus den Unteransprüchen.Further advantageous process steps result from the subclaims.

Mit der Erfindung wird erstmals ein Verfahren vorgestellt, mit dem es möglich ist, ohne manuellen Eingriff, also unabhängig von den Fähigkeiten und Erfahrungen des Bedienungspersonals eine Drahtziehanlage der gattungsgemäßen Art automatisch einzuregeln und anzufahren. Hierdurch wird ein beträchtlicher Rationalisierungeffekt sowie Reduzierung von Ausschuß bzw. eine erhebliche Qualitätssteigerung erreicht. Das Entfernen der Tastrollen aus dem Drahtbereich nach Umschalten in den Geradeauszugbetrieb führt zu einer erheblichen Verschleißminderung an den Tastrollen, da diese nur noch während der Einregelungszeit mit dem Draht in Berührung gelangen.With the invention, a method is presented for the first time with which it is possible to automatically regulate and start up a wire drawing system of the generic type without manual intervention, that is to say independently of the skills and experience of the operating personnel. This achieves a considerable rationalization effect and a reduction in rejects or a considerable increase in quality. Removing the feeler rollers from the wire area after switching to straight pull operation leads to a considerable reduction in wear on the feeler rollers, since these only come into contact with the wire during the adjustment period.

Anhand der schematischen Darstellung soll die Erfindung näher erläutert werden.The invention will be explained in more detail with the aid of the schematic representation.

Bei einer mehrstufigen, gleitlos und im Geradeauszug arbeitenden Drahtziehmaschine sind jeweils zwischen Ziehscheiben 2 und Ziehsteinen 3 Tastrollen 4 installiert. In bekannter Weise werden die Ziehscheiben 2 mittels drehzahlgeregelter Antriebseinrichtungen 7 mit Antriebssteuerung 8 umlaufend angetrieben.In a multi-stage, smooth and straight pull wire drawing machine, 3 feeler rollers 4 are installed between drawing disks 2 and drawing dies. In a known manner, the drawing disks 2 are driven in a rotating manner by means of speed-controlled drive devices 7 with drive control 8.

Zum Einfahren wird die Drahtziehmaschine nach Einfädeln des Drahtes 1 wie bei Ziehmaschinen mit Tänzer- oder Tastrollen gestartet, wobei die Drahtziehmaschine zunächst mit minimaler Produktionsgeschwindigkeit läuft. Dabei wird die Anpassung der Drehzahlen der einzelnen Ziehantriebe an die prozeßbedingten Parameter (Drahtdurchmesser bzw. Drahtquerschnittsabnahme) in einer Sollwert-Kaskade über eine Tastrollen-Lageregelung vorgenommen, die die Sollwert-Kaskade automatisch abgleicht, wobei der Abgleich proportional zu den Drehzahlverhältnissen der Ziehscheibenantriebe bzw. Querschnittsverhältnissen des Drahtes und unabhängig von den absoluten Drehzahlen bzw. Sollwerten ist.To retract, the wire drawing machine is started after threading the wire 1 as with drawing machines with dancer or feeler rollers, the wire drawing machine initially running at a minimal production speed. The speed of the individual drawing drives is adjusted to the process-related parameters (wire diameter or wire cross-section decrease) in a setpoint cascade via a feeler roller position control, which automatically adjusts the setpoint cascade, the adjustment being proportional to the speed ratios of the drawing disk drives or Cross-sectional ratios of the wire and independent of the absolute speeds or setpoints.

Die Tastrollen 4 erreichen über die Tastrollen-Lageregler 11 entsprechend dem Sollwert (A) die Soll-Lage (a) nahe der gestreckten Drahtführung.The feeler rollers 4 reach the desired position (a) near the stretched wire guide via the feeler roller position controller 11 in accordance with the desired value (A).

Nachdem alle Tastrollen 4 über die Rückstellkraft 6 ihre Sollposition erreicht haben, werden die Drehzahlen bzw. Querschnittsverminderungen der einzelnen Antriebe über ein Steuerwerk 12 mit einem Speicher 9 abgespeichert.After all tracer rollers 4 have reached their desired position via the restoring force 6, the speeds or reductions in cross-section of the individual drives are stored via a control unit 12 with a memory 9.

Über einen Steuerbefehl an die Tastrollen-Lageregler 11 werden die Tastrollen 4 langsam und stoßfrei aus dem Bereich des Drahtes 1 hinausgesteuert und erreichen die Endlage (b). Das Entfernen der Tastrollen aus dem Drahtbereich führt zu einer erheblichen Verschleißminderung an den Rollen.Via a control command to the feeler roller position controller 11, the feeler rollers 4 are slowly and smoothly steered out of the area of the wire 1 and reach the end position (b). Removing the tracer rollers from the wire area leads to a considerable reduction in wear on the rollers.

Gleichzeitig wird der Tastrollen-Lageregler 11 auf seine neue Aufgabe als Gegenzugregler eingeschaltet bzw. adaptiert.At the same time, the feeler roller position controller 11 is switched on or adapted to its new task as a counter-tension controller.

Das Wegsteuern der Tastrollen 4 signalisiert der Gegenzugregelung eine Verringerung der Gegenzugkraft. Zur Wiederherstellung des geforderten Gegenzug-Sollwertes ist eine Verzögerung der Antriebe notwendig und zwar solange, bis die Drahtauslenkung aufgehoben ist und der Draht 1 im gestreckten Zustand mit dem ursprünglich eingestellten Gegenzug läuft, was durch den Gegenzugregler bewirkt wird.Steering away the feeler rollers 4 signals the counter-pull control a reduction in the counter-pull force. To restore the required balancing setpoint, the drives must be decelerated and that until the wire deflection is eliminated and the wire 1 runs in the stretched state with the originally set counter-pull, which is brought about by the counter-pull controller.

In einem abgewandelten Verfahren ist vorgesehen, vor dem Befehl "Tastrollen in Endstellung fahren" die Tastrollen-Rückstellkraft über einen Steuerbefehl einzustellen, so daß über den entsprechenden Winkel die gewünschte Gegenzugkraft entsteht. Gleichzeitig wird der Tastrollen-Lageregler 11 auf seine Aufgabe als Gegenzugregler eingeschaltet.In a modified method it is provided to set the traction roller restoring force via a control command before the command "move tracer rollers to end position", so that the desired counterforce is generated via the corresponding angle. At the same time, the feeler roller position controller 11 is switched on as a counter-pull controller.

Sobald der Regler 11 eingeschwungen ist, werden die Tastrollen 4 langsam aus dem Bereich des Drahtes 1 herausgesteuert und erreichen die Lage (b). Das Heraussteuern der Tastrollen 4 aus dem Drahtbereich führt dazu, daß der Ziehantrieb mit Regler 11 die Entlastung registriert und solange nachregelt, bis der alte Gegenzug in der gestreckten Drahtlage (Geradeauszug) wieder erreicht ist.As soon as the controller 11 has settled, the feeler rollers 4 are slowly steered out of the area of the wire 1 and reach position (b). Controlling the feeler rollers 4 out of the wire area means that the pull drive with controller 11 registers the relief and adjusts until the old pull in the stretched wire position (straight pull) is reached again.

In einer bevorzugten Ausgestaltung ist vorgesehen, daß die Tastrollen-Lageregler und die Gegenzugregler in Kaskade geschaltet sind und jeder der Regler als unterlagerter Regelkreis angeordnet ist oder die Tastrollen-Lageregler und die Gegenzugregler als Parallelregler ausgeführt werden. Ferner sind der Tastrollen-Lageregler und der Gegenzugregler mit einem einzigen adaptiven Regler realisiert, bei dem die jeweiligen Parameter (Proportionalverstärkung und Nachstellzeit) entsprechend der Betriebsart (Tastrollen-Regler oder Gegenzugregler) umgeschaltet werden und durch Wahl des Übergangverhaltens ein stoßfreier Übergang im Draht erfolgt.In a preferred embodiment it is provided that the feeler roller position controller and the counter-pull controller are connected in cascade and each of the controllers is arranged as a subordinate control loop or the feeler roller position controller and the counter-pull controller are designed as parallel controllers. Furthermore, the feeler roller position controller and the counter-pull controller are realized with a single adaptive controller, in which the respective parameters (proportional gain and readjustment time) are switched according to the operating mode (touch roller controller or counter-pull controller) and a bumpless transition takes place in the wire by selecting the transition behavior.

Claims (4)

  1. Method of controlling and automatically regulating the drive speeds of drawing blocks (2) in a multi-block wire drawing machine which operates by drawing in a straight line, without slip, and in which a drawing block (2) is assigned to each drawing die (3) and each drawing block (2) is driven by means of a drive unit (7) with automatic rotation-speed regulation or control, characterized in that during the starting phase of the wire drawing machine, the rotation speeds of the individual drawing-block drive units are matched to the parameters that are conditioned by the process (wire diameter or reduction in wire cross-section), this matching being performed in a set-value cascade, through the agency of an automatic follower-pulley position control system that automatically adjusts said set-value cascade, the adjustment being proportional to the rotation-speed ratios of the drawing-block drive units and independent of the absolute rotation speeds or set values, and in that the follower-pulleys (4) are slowly transferred to a travel-limit position in order to achieve a smooth transition to direct drawing in a straight line, this transfer of the follower-pulleys (4) being brought about by a control command that is sent to the automatic follower-pulley position control system, and the known back pull regulation or control process takes over the subsequent automatic drive-speed regulation during the straight-line drawing and the follower-pulleys (4) are control-directed to move to positions clear of the wire.
  2. Method according to Claim 1, characterized in that the back force (6) associated with the follower-pulleys (4) is adjusted in accordance with the set, required back pull value, through the agency of a control command that is sent to the automatic follower-pulley position control system, and switching-over to the known back pull regulation or control process during the straight-line drawing is effected, and in that the follower-pulleys (4) are directed to move slowly to positions clear of the wire (1) and through the agency of the drawing-block drive units the decrease in load is readjusted by the follower-pulleys (4), in conjunction with the automatic control devices (11) which function as back pull regulators, until the back pull in the taut wire position is regained.
  3. Method according to Claim 1 or 2, characterized in that the automatic follower-pulley position control devices and the devices which function as automatic back pull regulators are connected in cascade, and each of the automatic control devices is arranged in a manner such that it functions as a infraposed control system, or the automatic follower-pulley position control devices and the devices which function as automatic back pull regulators are designed as parallel, feed-forward automatic control devices.
  4. Method according to Claim 1 or 2, characterized in that the automatic follower-pulley position control and automatic back pull regulation processes are effected through the agency of a common automatic control device (11), via which the governing parameters at any given point in time (proportional amplification and adjustment-action time) are changed by switching according to the operating mode (automatic follower-pulley controller or back pull regulator), the transition behaviour being regulated in a manner such that a transition which does not involve jerking the wire is effected.
EP91103788A 1990-03-27 1991-03-13 Method for controlling the driving speed of draw plates of a straight-lined wire drawing machine Expired - Lifetime EP0449032B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91103788T ATE100000T1 (en) 1990-03-27 1991-03-13 METHOD OF CONTROLLING AND REGULATING THE DRIVE SPEED OF DRAWING DISCS OF A STRAIGHT-PULL WIRE DRAWING MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4009732A DE4009732A1 (en) 1990-03-27 1990-03-27 METHOD FOR CONTROLLING AND REGULATING THE DRIVE SPEED OF DRAWING DISCS OF A WIRE DRAWING MACHINE WORKING IN STRAIGHT EXTRACTION
DE4009732 1990-03-27

Publications (3)

Publication Number Publication Date
EP0449032A2 EP0449032A2 (en) 1991-10-02
EP0449032A3 EP0449032A3 (en) 1992-03-11
EP0449032B1 true EP0449032B1 (en) 1994-01-12

Family

ID=6403112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91103788A Expired - Lifetime EP0449032B1 (en) 1990-03-27 1991-03-13 Method for controlling the driving speed of draw plates of a straight-lined wire drawing machine

Country Status (3)

Country Link
EP (1) EP0449032B1 (en)
AT (1) ATE100000T1 (en)
DE (2) DE4009732A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN113172102A (en) * 2021-04-28 2021-07-27 深圳中宝新材科技有限公司 Material guiding and stretching device for producing bonding copper wires and using method thereof

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Publication number Priority date Publication date Assignee Title
DE4412268A1 (en) * 1994-04-09 1995-10-12 Herborn & Breitenbach Process for the independent or automatic operation of a control and regulating device for the drawing drives of a multiple drawing machine working in the direct, sliding-free drawing process
CN117139398B (en) * 2023-08-03 2025-05-13 河南恒创能科金属制品有限公司 Automatic control device and method for drawing tension of diamond wire bus

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US3448905A (en) * 1967-02-07 1969-06-10 Topps Chewing Gum Inc Article feed control
DE2251600B2 (en) * 1972-10-20 1974-11-07 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for specifying setpoints for controls whose control variables are technologically linked
US4045992A (en) * 1976-06-04 1977-09-06 Amtel, Inc. Dancer pulley mechanism
MX4735E (en) * 1976-12-14 1982-08-24 Amtel Inc IMPROVEMENTS IN SPEED CONTROL SYSTEM FOR A MULTIPLE STAGE REDUCING DEVICE
DE2749505C2 (en) * 1977-11-04 1987-01-15 Siemens AG, 1000 Berlin und 8000 München Setpoint cascade
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AT382092B (en) * 1985-02-19 1987-01-12 Otto Haase Ges M B H Wire drawing machine
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113172102A (en) * 2021-04-28 2021-07-27 深圳中宝新材科技有限公司 Material guiding and stretching device for producing bonding copper wires and using method thereof
CN113172102B (en) * 2021-04-28 2022-04-12 深圳中宝新材科技有限公司 Material guiding and stretching device for producing bonding copper wires and using method thereof

Also Published As

Publication number Publication date
DE4009732A1 (en) 1991-10-02
EP0449032A3 (en) 1992-03-11
ATE100000T1 (en) 1994-01-15
EP0449032A2 (en) 1991-10-02
DE59100829D1 (en) 1994-02-24

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