EP0102589B1 - Tension control device for a shaft winder - Google Patents

Tension control device for a shaft winder Download PDF

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Publication number
EP0102589B1
EP0102589B1 EP83108344A EP83108344A EP0102589B1 EP 0102589 B1 EP0102589 B1 EP 0102589B1 EP 83108344 A EP83108344 A EP 83108344A EP 83108344 A EP83108344 A EP 83108344A EP 0102589 B1 EP0102589 B1 EP 0102589B1
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EP
European Patent Office
Prior art keywords
speed
proportional
winding
multiplier
diameter
Prior art date
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Expired
Application number
EP83108344A
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German (de)
French (fr)
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EP0102589A2 (en
EP0102589A3 (en
Inventor
Horst Zimmermann
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Siemens AG
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Siemens AG
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Publication of EP0102589A2 publication Critical patent/EP0102589A2/en
Publication of EP0102589A3 publication Critical patent/EP0102589A3/en
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Publication of EP0102589B1 publication Critical patent/EP0102589B1/en
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    • 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
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • B65H23/1955—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations and controlling web tension

Definitions

  • This preamble refers to an arrangement as described, for example, in US Pat. No. 3,348,107.
  • the torque transmitted from the motor to the winding is regulated by means of an eddy current coupling in such a way that the desired train in the web and the required winding speed result.
  • the actual torque value for the control is determined from the current of the clutch and the setpoint in a potentiometer circuit with amplifier from the ratio of web speed to winding speed, i.e. calculated the winding diameter.
  • Such control of train and speed using a torque control loop is relatively sluggish and inaccurate.
  • the object of the present invention is to provide a simple indirect train control of the type mentioned, with the train and speed can be met precisely and sensitively.
  • An electric DC machine 2 is used to drive the winding 3 and is fed from a network via a controllable rectifier 1.
  • the web 4 arriving from a processing machine (not shown) at a predetermined speed v s is to be wound up into a roll 3 on the axis winder, a predetermined train in the web 4 being to be maintained during the winding process.
  • the tax rate 6 of the controllable rectifier 1 is driven by a current controller 7 with PI behavior.
  • the actual value i of the current controller 7 is recorded on the AC voltage side and is a measure of the armature current - and, in the case of constant flow, also of the electrical moment - of the machine 2.
  • the setpoint i s of the current controller 7 is supplied by a superimposed speed control loop (main control loop) with speed controller 8 .
  • a variable V S which is proportional to the web speed of the web 4 and which is derived, for example, from a tachometer machine 5 moved by the web 4 serves as the target value v s of this speed controller 8.
  • As actual value v ; a size proportional to the product of the speed n and the diameter D of the winding 3 is used. These sizes correspond to the required or actual peripheral speed v . or v ; on the winding surface.
  • a further superimposed correction control loop is provided with a correction controller 9 with PI behavior, which additionally gives a correcting variable to the input of the speed controller 8 in order to maintain the desired train.
  • This correction controller receives the torque M as the actual value ;
  • the electrical machine 2 has a size proportional, in the present case a size proportional to the armature current i and, as a setpoint M s, a size kx D adjustable in proportion to the diameter D.
  • this correction control loop is relatively slow in relation to the speed control loop.
  • a control loop 14 which consists of the series connection of a toggle amplifier 13, an integrator 12 and a multiplier 11.
  • the second input signal of the multiplier 11, which corresponds to the speed n of the winder 3, is supplied by a tachometer machine 16 coupled to the machine 2.
  • the signal n ⁇ D which arises at the output of this control loop 14 is fed back via line 17 to the input of the control loop, ie to the input of the tilting amplifier 13, and compared with the variable proportional to the web speed v s .
  • the control circuit works in such a way that it tries to continuously make the difference occurring at the input of the toggle amplifier 13 zero.
  • a value must inevitably be set at the output of this circuit, which corresponds to the product of the speed nx diameter D, since this value corresponds to the desired web speed or peripheral speed of the winder 3.
  • the multiplier 11 Since the multiplier 11 forms the product n ⁇ D and the size n is located at one input, the size present at the other input of the multiplier 11 must be proportional to the winding diameter D. This voltage which is established between integrator 12 and multiplier 11 is therefore used as the value for the winding diameter D. With a connected potentiometer 15, a correction setpoint k ⁇ D proportional to the winding diameter can then be formed as the setpoint M for the correction controller 9. The value k is a measure of the desired train setpoint. If it is desired to change the tension depending on the diameter, a function transmitter (not shown) can also be installed in the line in front of or behind the potentiometer 15, which causes a change in the tension depending on the diameter.
  • the regulation can be described in such a way that a correction control circuit is superimposed on a regulation of the peripheral speed of the winder, in which the actual value of the peripheral speed is calculated from the winder speed and the winder diameter. works as a torque control loop.

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  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Control Of Direct Current Motors (AREA)

Description

Die Erfindung bezieht sich auf eine Einrichtung zum Regeln der Zugspannung und der Geschwindigkeit bei einem Achswickler mit

  • a) einem Regler, dem als Sollwert eine vom jeweiligen Wickeldurchmesser einstellbar abhängige Grösse und als Istwert eine dem Drehmoment des Wickelantriebes proportionale Grösse zugeführt ist und mit
  • b) einer Regelschleife zur Ermittlung einer dem Wickeldurchmesser proportionalen Grösse aus Bahngeschwindigkeit und Drehzahl des Wicklers.
The invention relates to a device for controlling the tension and speed in an axle winder
  • a) a controller which is supplied with a variable which is dependent on the respective winding diameter as a setpoint and with a variable which is proportional to the torque of the winding drive as an actual value and with
  • b) a control loop for determining a variable proportional to the winding diameter from the web speed and speed of the winder.

Mit diesem Oberbegriff wird auf eine Anordnung Bezug genommen, wie sie beispielsweise in der US-PS 3 348 107 beschrieben ist. Bei dieser bekannten Anordnung wird das vom Motor zum Wickel übertragene Drehmoment mittels einer Wirbelstromkupplung so geregelt, dass sich der gewünschte Zug in der Bahn und die erforderliche Wickelgeschwindigkeit ergeben. Der Drehmomentistwert für die Regelung wird hierbei aus dem Strom der Kupplung ermittelt und der Sollwert in einer Potentiometerschaltung mit Verstärker aus dem Verhältnis von Bahngeschwindigkeit zur Wickeldrehzahl, d.h. dem Wickeldurchmesser berechnet. Eine derartige Regelung von Zug und Geschwindigkeit über einen Momentregelkreis ist relativ träge und ungenau.This preamble refers to an arrangement as described, for example, in US Pat. No. 3,348,107. In this known arrangement, the torque transmitted from the motor to the winding is regulated by means of an eddy current coupling in such a way that the desired train in the web and the required winding speed result. The actual torque value for the control is determined from the current of the clutch and the setpoint in a potentiometer circuit with amplifier from the ratio of web speed to winding speed, i.e. calculated the winding diameter. Such control of train and speed using a torque control loop is relatively sluggish and inaccurate.

Es ist fernerhin bekannt, den Zug in einem Achswickler dadurch konstant zu halten, dass man die dem elektrischen Wickelantrieb zugeführte Leistung konstant hält. Der Istwert der Leistung kann dabei bei der Gleichstrommaschine aus dem Produkt von EMK und dem Ankerstrom ermittelt werden, der verlangte Leistungssollwert ist proportional dem Produkt aus Warenbahnzug mal Bahngeschwindigkeit (vgl. z. B. DE-PS 205 701). Die Aufgabe der vorliegenden Erfindung besteht darin, eine einfache indirekte Zugregelung der eingangs genannten Art zu schaffen, mit der Zug und Geschwindigkeit genau und feinfühlig eingehalten werden können.It is also known to keep the train constant in an axle winder by keeping the power supplied to the electric winding drive constant. The actual value of the power can be determined for the DC machine from the product of EMK and the armature current, the required power setpoint is proportional to the product of the web train times the web speed (see e.g. DE-PS 205 701). The object of the present invention is to provide a simple indirect train control of the type mentioned, with the train and speed can be met precisely and sensitively.

Diese Aufgabe wird erfindungsgemäss durch folgende Merkmale gelöst:

  • c) das Ausgangssignal des Reglers dient als Korrektursignal für einen Geschwindigkeitsregler, wobei
  • d) dem Geschwindigkeitsregler als Sollwert eine der gegebenen Bahngeschwindigkeit proportionale Grösse und als Istwert eine dem Produkt aus Wickeldurchmesser und Wickeldrehzahl proportionale Grösse zugeführt ist.
According to the invention, this object is achieved by the following features:
  • c) the output signal of the controller serves as a correction signal for a speed controller, whereby
  • d) the speed controller is supplied with a variable proportional to the given web speed and as the actual value with a variable proportional to the product of the winding diameter and the winding speed.

Durch diese Überlagerung von Regelkreisen lässt sich bei jeder Geschwindigkeit der Zug genau einhalten.This overlapping of control loops enables the train to be stopped precisely at any speed.

Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angeführt.Advantageous embodiments of the invention are set out in the subclaims.

Zum Antrieb des Wickels 3 dient eine elektrische Gleichstrommaschine 2, die über einen steuerbaren Gleichrichter 1 aus einem Netz gespeist wird. Die von einer nichtgezeigten Verarbeitungsmaschine mit vorgegebener Geschwindigkeit vs ankommende Warenbahn 4 soll am Achswickler zu einem Wickel 3 aufgewickelt werden, wobei ein vorgegebener Zug in der Warenbahn 4 beim Wickelvorgang aufrechterhalten werden soll.An electric DC machine 2 is used to drive the winding 3 and is fed from a network via a controllable rectifier 1. The web 4 arriving from a processing machine (not shown) at a predetermined speed v s is to be wound up into a roll 3 on the axis winder, a predetermined train in the web 4 being to be maintained during the winding process.

Der Steuersatz 6 des steuerbaren Gleichrichters 1 wird von einem Stromregler 7 mit PI-Verhalten ausgesteuert. Der Istwert i des Stromreglers 7 wird wechselspannungsseitig erfasst und ist ein Mass für den Ankerstrom - und bei konstantem Fluss auch für das elektrische Moment - der Maschine 2. Der Sollwert is des Stromreglers 7 wird von einem überlagerten Geschwindigkeitsregelkreis (Hauptregelkreis) mit Geschwindigkeitsregler 8 geliefert. Als Sollwert vs dieses Geschwindigkeitsreglers 8 dient eine der Bahngeschwindigkeit der Warenbahn 4 proportionale Grösse VS, die z.B. aus einer von der Warenbahn 4 bewegten Tachometermaschine 5 abgeleitet ist. Als Istwert v; wird eine dem Produkt aus Drehzahl n und Durchmesser D des Wickels 3 proportionale Grösse benutzt. Diese Grössen entsprechen der geforderten bzw. tatsächlichen Umfangsgeschwindigkeit v. bzw. v; an der Wickeloberfläche.The tax rate 6 of the controllable rectifier 1 is driven by a current controller 7 with PI behavior. The actual value i of the current controller 7 is recorded on the AC voltage side and is a measure of the armature current - and, in the case of constant flow, also of the electrical moment - of the machine 2. The setpoint i s of the current controller 7 is supplied by a superimposed speed control loop (main control loop) with speed controller 8 . A variable V S which is proportional to the web speed of the web 4 and which is derived, for example, from a tachometer machine 5 moved by the web 4 serves as the target value v s of this speed controller 8. As actual value v ; a size proportional to the product of the speed n and the diameter D of the winding 3 is used. These sizes correspond to the required or actual peripheral speed v . or v ; on the winding surface.

Es ist noch ein weiterer überlagerter Korrekturregelkreis mit einem Korrekturregler 9 mit PI-Verhalten vorgesehen, der auf den Eingang des Geschwindigkeitsreglers 8 zusätzlich eine korrigierende Grösse zur Einhaltung des gewünschten Zuges gibt. Dieser Korrekturregler erhält als Istwert eine dem Drehmoment M; der elektrischen Maschine 2 proportionale Grösse, im vorliegenden Fall eine dem Ankerstrom i proportionale Grösse und als Sollwert Ms eine dem Durchmesser D einstellbar proportionale Grösse k x D. Der Faktor k ist ein Mass für den gewünschten Zug. Um Instabilitäten zu vermeiden, ist dieser Korrekturregelkreis relativ langsam im Verhältnis zum Drehzahlregelkreis.A further superimposed correction control loop is provided with a correction controller 9 with PI behavior, which additionally gives a correcting variable to the input of the speed controller 8 in order to maintain the desired train. This correction controller receives the torque M as the actual value ; The electrical machine 2 has a size proportional, in the present case a size proportional to the armature current i and, as a setpoint M s, a size kx D adjustable in proportion to the diameter D. In order to avoid instabilities, this correction control loop is relatively slow in relation to the speed control loop.

Zur Bildung des dem Produkt aus Wicklerdrehzahl n und Wickeldurchmesser D proportionalen Wertes v; ist eine Regelschleife 14 vorgesehen, die aus der Reihenschaltung eines Kippverstärkers 13, eines Integrators 12 und eines Multiplizierers 11 besteht. Das zweite Eingangssignal des Multiplizierers 11, das der Drehzahl n des Wicklers 3 entspricht, wird dabei von einer mit der Maschine 2 gekuppelten Tachometermaschine 16 geliefert. Das sich am Ausgang dieser Regelschleife 14 einstellende Signal n × D wird über Leitung 17 zum Eingang der Regelschleife, d.h. zum Eingang des Kippverstärkes 13 zurückgeführt und mit der der Warenbahngeschwindigkeit vs proportionalen Grösse verglichen. Die Regelschaltung arbeitet so, dass sie versucht, die am Eingang des Kippverstärkers 13 auftretende Differenz fortlaufend zu Null zu machen. Hierdurch muss sich dann zwangsläufig am Ausgang dieser Schaltung ein Wert einstellen, der dem Produkt aus Drehzahl n x Durchmesser D entspricht, da dieser Wert ja der gewünschten Bahngeschwindigkeit bzw. Umfangsgeschwindigkeit des Wicklers 3 entspricht.To form the value v proportional to the product of the winder speed n and the winding diameter D ; a control loop 14 is provided, which consists of the series connection of a toggle amplifier 13, an integrator 12 and a multiplier 11. The second input signal of the multiplier 11, which corresponds to the speed n of the winder 3, is supplied by a tachometer machine 16 coupled to the machine 2. The signal n × D which arises at the output of this control loop 14 is fed back via line 17 to the input of the control loop, ie to the input of the tilting amplifier 13, and compared with the variable proportional to the web speed v s . The control circuit works in such a way that it tries to continuously make the difference occurring at the input of the toggle amplifier 13 zero. As a result, a value must inevitably be set at the output of this circuit, which corresponds to the product of the speed nx diameter D, since this value corresponds to the desired web speed or peripheral speed of the winder 3.

Durch die Regelung der Umfangsgeschwindigkeit mit dem Produkt n × D bzw. vs wird erreicht, dass die Eingangsgrössen am Eingang des Drehzahlreglers vom wachsenden Durchmessernicht beeinflusst werden.By regulating the peripheral speed with the product n × D or v s it is achieved that the input variables at the input of the rotation number controller are not influenced by the growing diameter.

Da der Multiplizierer 11 das Produkt n × D bildet und an einem Eingang die Grösse n liegt, muss die am anderen Eingang des Multiplizierers 11 vorhandene Grösse dem Wickeldurchmesser D proportional sein. Es wird daher diese zwischen Integrator 12 und Multiplizierer 11 sich einstellende Spannung als Wert für den Wickeldurchmesser D benutzt. Mit einem angeschlossenen Potentiometer 15 kann dann als Sollwert M, für den Korrekturregler 9 ein dem Wickeldurchmesser proportionaler Korrektursollwert k × D gebildet werden. Der Wert k ist ein Mass für den gewünschten Zugsollwert. Falls es erwünscht ist, den Zug abhängig vom Durchmesser zu verändern, kann auch noch in die Leitung vor oder hinter dem Potentiometer 15 ein nichtgezeigter Funktionsgeber eingebaut werden, durch den eine durchmesserabhängige Veränderung des Zuges bewirkt wird.Since the multiplier 11 forms the product n × D and the size n is located at one input, the size present at the other input of the multiplier 11 must be proportional to the winding diameter D. This voltage which is established between integrator 12 and multiplier 11 is therefore used as the value for the winding diameter D. With a connected potentiometer 15, a correction setpoint k × D proportional to the winding diameter can then be formed as the setpoint M for the correction controller 9. The value k is a measure of the desired train setpoint. If it is desired to change the tension depending on the diameter, a function transmitter (not shown) can also be installed in the line in front of or behind the potentiometer 15, which causes a change in the tension depending on the diameter.

Zusammenfassend lässt sich also die Regelung in der Weise beschreiben, dass einer Regelung der Umfangsgeschwindigkeit des Wicklers, bei der der Istwert der Umfangsgeschwindigkeit aus Wicklerdrehzahl und Wicklerdurchmesser errechnet wird, ein Korrekturregelkreis überlagert ist, der z.B. als Momentenregelkreis arbeitet.In summary, the regulation can be described in such a way that a correction control circuit is superimposed on a regulation of the peripheral speed of the winder, in which the actual value of the peripheral speed is calculated from the winder speed and the winder diameter. works as a torque control loop.

Claims (3)

1. Apparatus for regulating the tensile stress and the speed of a shaft winder comprising:
a) a regulator (9) supplied with a quantity adjustably dependent upon the respective winding diameter (D) as a theoretical value (Ms) and with a quantity proportional to the torque of the winding drive as an actual value (Mi), and comprising
b) a regulating loop (14) which determines a quantity, proportional to the winding diameter (D), composed of the speed (vs) of the continuous material and the rotating speed (n) of the winder (2, 3), characterised by the following features:
c) the use of the output signal of the regulator (9) as a correcting signal for a speed regulator (8), where
d) the speed regulator (8) is supplied with a quantity proportional to the given speed of the continuous material as a theoretical value (Vs) and with a quantity proportional to the product of winding diameter (D) and winding rotation speed (n) as an actual value (V).
2. Apparatus as claimed in Claim 1, characterised in that the regulating loop consists of a series arrangement of a trigger amplifier (13), an integrator (12) and a multiplier (11), the output value of which, together with the quantity proportional to the speed (v,) of the continuous material is applied to the input of the trigger amplifier (13) and that a quantity proportional to the winding rotation speed (n) is applied at the second input of the multiplier so that a quantity proportional to the product of diameter (D) and winding rotation speed (n) occurs at the output of the multiplier (11
3. Apparatus as claimed in Claim 2, characterised in that the quantity (k, D) adjustably proportional to the winding diameter (D) is tapped from a potentiometer (15) connected between the integrator (12) and the multiplier (11).
EP83108344A 1982-09-06 1983-08-24 Tension control device for a shaft winder Expired EP0102589B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823233054 DE3233054A1 (en) 1982-09-06 1982-09-06 DEVICE FOR REGULATING THE TENSION TENSION IN AN AXLE WRAPER
DE3233054 1982-09-06

Publications (3)

Publication Number Publication Date
EP0102589A2 EP0102589A2 (en) 1984-03-14
EP0102589A3 EP0102589A3 (en) 1985-05-22
EP0102589B1 true EP0102589B1 (en) 1987-08-05

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ID=6172559

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108344A Expired EP0102589B1 (en) 1982-09-06 1983-08-24 Tension control device for a shaft winder

Country Status (3)

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EP (1) EP0102589B1 (en)
JP (1) JPS5964462A (en)
DE (2) DE3233054A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4788558A (en) * 1987-02-06 1988-11-29 Intermec Corporation Method and apparatus for controlling tension in tape progressed along a feed path
US7000864B2 (en) * 2002-06-10 2006-02-21 The Procter & Gamble Company Consumer product winding control and adjustment
EP3224665B1 (en) 2014-11-24 2018-08-22 Philips Lighting Holding B.V. Lighting device and lighting system
EP3858771A1 (en) * 2020-01-28 2021-08-04 Siemens Aktiengesellschaft Dancer-based web tension control and cascade control system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH412069A (en) * 1960-06-23 1966-04-30 Bbc Brown Boveri & Cie Electric winding device
US3348107A (en) * 1964-07-01 1967-10-17 Reliance Electric & Eng Co Tension controlled web drive
FR1486040A (en) * 1966-07-06 1967-06-23 Westinghouse Electric Corp Device for detecting the diameter of a roll formed by a rotating belt
BE758671A (en) * 1969-11-15 1971-04-16 Siemens Ag SPINDLE WINDING MECHANISMS SPEED ADJUSTMENT DEVICE
BE795619A (en) * 1972-02-23 1973-06-18 Siemens Ag CIRCUIT FOR ADJUSTING THE WIRE SPEED OF WINDING DEVICES

Also Published As

Publication number Publication date
JPS5964462A (en) 1984-04-12
JPS6365578B2 (en) 1988-12-16
EP0102589A2 (en) 1984-03-14
DE3233054A1 (en) 1984-03-08
DE3372849D1 (en) 1987-09-10
EP0102589A3 (en) 1985-05-22

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