EP2499076A1 - Method for operating a winding device - Google Patents

Method for operating a winding device

Info

Publication number
EP2499076A1
EP2499076A1 EP10754697A EP10754697A EP2499076A1 EP 2499076 A1 EP2499076 A1 EP 2499076A1 EP 10754697 A EP10754697 A EP 10754697A EP 10754697 A EP10754697 A EP 10754697A EP 2499076 A1 EP2499076 A1 EP 2499076A1
Authority
EP
European Patent Office
Prior art keywords
dancer
web
switched
control
web tension
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
EP10754697A
Other languages
German (de)
French (fr)
Other versions
EP2499076B1 (en
Inventor
Stephan Schultze
Hans-Jürgen Doeres
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2499076A1 publication Critical patent/EP2499076A1/en
Application granted granted Critical
Publication of EP2499076B1 publication Critical patent/EP2499076B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
    • B65H23/1825—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations and controlling web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • 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
    • B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
    • B65H23/185—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations motor-controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/32—Torque e.g. braking torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/37—Elasticity modulus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the present invention relates to a method for operating a winder device of a processing machine for processing a material web as well as an associated computing unit.
  • a winder device of a processing machine for processing a material web as well as an associated computing unit.
  • Directed processing machines in which a web or web is processed.
  • the invention is particularly applicable to printing machines such as e.g.
  • Marking printing machines commercial printing machines, gravure printing machines, inline flexographic printing machines, multipack printing machines or securities printing machines, and in processing machines, such as printing machines. Bag machines,
  • the web can be made of paper, cloth, cardboard, plastic, metal, rubber, in foil form etc.
  • winder devices are optionally used as winder or unwinder.
  • a winder device usually comprises at least one driven axle, eg a winding axle of a center winder, a drive axle of a peripheral winder, a tension roller or the like, an associated positioning device controller function, eg in a motion control or programmable logic controller (PLC) and optionally measuring members for determining the web tension.
  • the winder are usually operated so that a web tension is impressed into the web, with both regulations and only adjustments of the web tension are used.
  • PLC programmable logic controller
  • a dancer control or dancer control is used, in which the web tension is typically impressed by a weight force or a pressure on the dancer in the web.
  • the task of the dancer position control is to keep the dancer within predefined limits, the nominal value of the dancer position usually being set to a middle position.
  • a dancer position control is usually used to compensate for sudden disturbances, roundness in the winding or non-uniform web transport.
  • a method or structure with dancer position controller is usually used when the web is not running continuously or sudden disturbances must be compensated. Especially with a flying role change a dancer is usually essential.
  • the controller typically specifies either the drive torque or the speed of the axis.
  • a control of the drive torque is expediently used in rigid material with a high modulus of elasticity, such as paper, metal, whereas a control of the speed is advantageously used in elastic material, such as film or fabric.
  • Traction control offers the advantage of simpler implementability and lower component cost compared to dancer control.
  • a feedback-free adjustment of the web tension for example by setting the speed or drive torque setting, is known.
  • the position or control has the advantage of simplicity, since no mechanics, such as dancer or load cell, and measuring elements, such as dancer height measurement or force measurement, are needed. However, it is relatively inaccurate because disturbances can not be detected and compensated by a controller.
  • the structure or method with traction control / adjustment is usually used instead of a dancer position controller, if a constantly running web transport is to be expected without major disturbances.
  • the known methods are relatively inflexible and can hardly be adapted to changing conditions, such as new material. Also, in productions where a flying role change is provided, always a complex dancer position control necessary.
  • the invention is essentially based on the finding that a flexible and adaptable to the particular conditions web tension control or adjustment for a winder device is available when online, ie during production, from a first web tension setting method to a second Brutemposvorgabemethode is switched.
  • the term "default method" includes both control and adjustment methods.
  • control structure can be particularly well matched to the web material.
  • special advantages can be achieved.
  • a web tension specification without dancers is used. Before the roll change is switched to a dancer position default to compensate for the disturbance caused by the roll change, particularly effectively. After the roll change is finally switched back from the dancer roll default to the original web tension specification.
  • An arithmetic unit according to the invention e.g. a control unit of a printing press, is, in particular programmatically, adapted to perform a method according to the invention.
  • the implementation of the invention in the form of software is advantageous because this allows very low cost, especially if an executing
  • Arithmetic unit is still used for other tasks and therefore already exists.
  • Suitable media for providing the computer program are in particular floppy disks, hard disks, flash memories, EEPROMs, CD-ROMs, DVDs etc. It is also possible to download a program via computer networks (Internet, Intranet, etc.).
  • FIG. 1 shows schematically a winder device with a dancer position control.
  • FIG. 2 shows the winder device according to FIG. 1 after a changeover to a speed specification method has taken place.
  • FIGS. 1 and 2 show a winder device 100 which, according to a preferred embodiment of the invention, can be operated using different web tension presetting methods. The following is intended to explain, such as for example a flying role change from a dancer position preset, as shown in Figure 1, to a speed specification, as shown in Figure 2, is switched.
  • the winder device 100 has a winding axis 101, onto which a material web 102 is wound. It is understood that the invention is equally applicable to an unwinding process.
  • the winder device 100 has a dancer 1 10 for specifying a web tension and a load cell 120 for detecting the web tension.
  • the measured by the load cell 120 web tension value is transmitted to a control unit 130, which is provided for web tension control.
  • the control unit 130 controls a dancer drive 1 11, which exerts pneumatically a certain pressure on the dancer 110, for example.
  • the dancer position is detected by a dancer position controller 131, which on this basis predetermines or regulates the rotational speed or the drive torque of the drive axle 101. It is understood that the web tension controller 130 and the dancer controller 131 may also be embodied in a common control unit.
  • the dancer position control requires a large number of elements and is therefore to be regarded as oversized for conventional operation.
  • the essential advantage of the dancer position control is the possibility, in particular in the event of a flying roll change, to absorb the disturbance in the web tension behavior caused by the roll change by the web material stored in the dancer and to avoid damage to the material web.
  • After the roll change is often a speed control practicable.
  • According to the present embodiment of the invention is therefore after the roll change to a speed or drive torque setting (control), as shown with reference to Figure 2, switched.
  • the dancer position setpoint is first set to a value that corresponds to the dancer stop. As shown in FIG. 2, the dancer 1 10 is fixed to the upper stop, for example.
  • the structure or method switchover is started.
  • the dancer pressure is reduced because, after switching, the web tension is no longer specified by the dancer pressure.
  • the web tension controller 130 will control the speed or the drive member of the axle 101 based on the web tension detected by the load cell 120.
  • the structure switching during the production operation is expediently such that no jumps occur in the control loop at the time of switching.
  • a PID controller in a load cell structure with specification of a drive torque the instantaneous drive torque is read out and the 1- component of the controller is specified so that after switching the same setpoint torque appears at the controller output.
  • the instantaneous drive speed is expediently read out and the I-part of the controller is set so that after switching the same target speed appears at the controller output.
  • a changeover to a dancer position specification can also be effected in a comparable manner by predefining the I component in accordance with the actual rotational speed.
  • the dancer position setpoint can be set, for example, in the center of the dancer, and the dancer pressure can also be set at the same time with the control technology changeover.
  • the dancer stop instead of driving on the dancer stop a mechanical fixation of the dancer, z. B. by means of a mechanical brake, elsewhere, for example, in the dancer center done.
  • the dancer has advantageously not first driven to the stop or later moved back to center position.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

The invention relates to a method for operating a winding device (100) of a processing machine for processing a material web (102), wherein a winding device is provided for winding or unwinding the material web (102), wherein the winding device (100) is operated to specify a web tension, wherein a switch occurs from a first web tension specification procedure to a second web tension specification procedure during the processing of the material web.

Description

Verfahren zum Betreiben einer Wicklereinrichtung  Method for operating a winder device
Beschreibung description
Die vorliegende Erfindung betrifft ein Verfahren zum Betreiben einer Wicklereinrichtung einer Bearbeitungsmaschine zum Bearbeiten einer Warenbahn sowie eine zughörige Recheneinheit. Obwohl nachfolgend hauptsächlich auf Druckmaschinen Bezug genommen wird, ist die Erfindung nicht darauf beschränkt, sondern vielmehr auf alle Arten von The present invention relates to a method for operating a winder device of a processing machine for processing a material web as well as an associated computing unit. Although reference will be made hereafter mainly to printing presses, the invention is not limited thereto but rather to all types of printing presses
Bearbeitungsmaschinen gerichtet, bei denen eine Warenbahn bzw. Materialbahn bearbeitet wird. Die Erfindung ist aber insbesondere bei Druckmaschinen wie z.B. Directed processing machines in which a web or web is processed. However, the invention is particularly applicable to printing machines such as e.g.
Zeirungsdruckmaschinen, Akzidenzdruckmaschinen, Tiefdruckmaschinen, Inline- Flexodruckmaschinen, Veipackungsdruckmaschinen oder Wertpapierdruckmaschinen sowie bei Verarbeitungsmaschinen wie z.B. Beutelmaschinen, Marking printing machines, commercial printing machines, gravure printing machines, inline flexographic printing machines, multipack printing machines or securities printing machines, and in processing machines, such as printing machines. Bag machines,
Briefumschlagsmaschinen oder Verpackungsmaschinen einsetzbar. Die Warenbahn kann aus Papier, Stoff, Pappe, Kunststoff, Metall, Gummi, in Folienform usw. Envelope machines or packaging machines used. The web can be made of paper, cloth, cardboard, plastic, metal, rubber, in foil form etc.
ausgebildet sein. be educated.
Stand der Technik State of the art
Bei warenbahnverarbeitenden Maschinen werden Wicklereinrichtungen wahlweise als Auf- oder Abwickler eingesetzt. Eine Wicklereinrichtung umfasst üblicherweise mindestens eine angetriebene Achse, z.B. eine Wickelachse eines Zentrumswicklers, eine Antriebsachse eines Umfangswicklers, eine Zugwalze o.ä., eine zugehörige Stelloder Reglerfunktion, z.B. in einer Bewegungssteuerung (Motion Control) oder speicherprogrammierbaren Steuerung (SPS) und gegebenenfalls Messglieder zur Bestimmung der Bahnspannung. Die Wickler werden üblicherweise so betrieben^ dass eine Bahnspannung in die Warenbahn eingeprägt wird, wobei sowohl Regelungen als auch lediglich Einstellungen der Bahnspannung eingesetzt werden. Im Stand der Technik sind dabei unterschiedliche Methoden zur Bahnspannungsregelung oder - einstellung bei Wicklern bahnverarbeitender Maschinen bekannt. In web-handling machines, winder devices are optionally used as winder or unwinder. A winder device usually comprises at least one driven axle, eg a winding axle of a center winder, a drive axle of a peripheral winder, a tension roller or the like, an associated positioning device controller function, eg in a motion control or programmable logic controller (PLC) and optionally measuring members for determining the web tension. The winder are usually operated so that a web tension is impressed into the web, with both regulations and only adjustments of the web tension are used. In the prior art, different methods for web tension control or adjustment in winders of web-processing machines are known.
Beispielsweise wird eine Tänzerregelung bzw. Tänzerlagerregelung eingesetzt, bei der die Bahnspannung typischerweise durch eine Gewichtskraft oder einen Druck auf den Tänzer in die Warenbahn eingeprägt wird. Die Aufgabe der Tänzerlageregelung ist, den Tänzer innerhalb vorgegebener Grenzen zu halten, wobei der Sollwert der Tänzerlage üblicherweise auf eine Mittelposition gesetzt wird. Eine Tänzerlageregelung wird üblicherweise eingesetzt, um plötzliche Störgrößen, Unrundheiten im Wickel oder ungleichförmigen Bahntransport auszugleichen. Eine Methode bzw. Struktur mit Tänzerlageregler wird meist dann eingesetzt, wenn die Warenbahn nicht kontinuierlich läuft oder plötzliche Störungen kompensiert werden müssen. Insbesondere bei einem fliegenden Rollenwechsel ist ein Tänzer üblicherweise unerlässlich. For example, a dancer control or dancer control is used, in which the web tension is typically impressed by a weight force or a pressure on the dancer in the web. The task of the dancer position control is to keep the dancer within predefined limits, the nominal value of the dancer position usually being set to a middle position. A dancer position control is usually used to compensate for sudden disturbances, roundness in the winding or non-uniform web transport. A method or structure with dancer position controller is usually used when the web is not running continuously or sudden disturbances must be compensated. Especially with a flying role change a dancer is usually essential.
Daneben ist bekannt, die Bahnspannung durch eine Zugkraftregelung der angetriebenen Wicklerachse einzustellen oder zu regeln. Der Regler gibt dabei typischerweise entweder das Antriebsmoment oder die Drehzahl der Achse vor. Eine Regelung des Antriebsmoments wird zweckmäßigerweise bei steifem Material mit hohem Elastizitätsmodul, wie z.B. Papier, Metall, eingesetzt, wohingegen eine Regelung der Drehzahl zweckmäßigerweise bei elastischem Material, wie z.B. Folie oder Stoff, eingesetzt wird. Die Zugkraftregelung bietet im Vergleich zur Tänzerlageregelung den Vorteil der einfacheren Implementierbarkeit und des geringeren Bauteileaufwands. Schließlich ist auch eine rückkopplungslose Einstellung der Bahnspannung, beispielsweise durch Drehzahleinstellung oder Antriebsmomenteinstellung, bekannt. Die Stellung bzw. Steuerung besitzt den Vorteil der Einfachheit, da keinerlei Mechanik, wie z.B. Tänzer oder Kraftmessdose, und Messglieder, wie z.B. Tänzerhöhenmessung oder Kräftmessung, benötigt werden. Sie ist jedoch relativ ungenau, da Störungen nicht erfasst und von einem Regler ausgeglichen werden können. In addition, it is known to adjust or regulate the web tension by a tension control of the driven winder axis. The controller typically specifies either the drive torque or the speed of the axis. A control of the drive torque is expediently used in rigid material with a high modulus of elasticity, such as paper, metal, whereas a control of the speed is advantageously used in elastic material, such as film or fabric. Traction control offers the advantage of simpler implementability and lower component cost compared to dancer control. Finally, a feedback-free adjustment of the web tension, for example by setting the speed or drive torque setting, is known. The position or control has the advantage of simplicity, since no mechanics, such as dancer or load cell, and measuring elements, such as dancer height measurement or force measurement, are needed. However, it is relatively inaccurate because disturbances can not be detected and compensated by a controller.
Die Struktur bzw. Methode mit Zugkraftregelung/-einstellung wird üblicherweise anstelle eines Tänzerlagereglers eingesetzt, wenn ein konstant laufender Bahntransport ohne große Störungen zu erwarten ist. The structure or method with traction control / adjustment is usually used instead of a dancer position controller, if a constantly running web transport is to be expected without major disturbances.
Die bekannten Methoden sind verhältnismäßig unflexibel und können kaum an veränderte Bedingungen, beispielsweise neues Material, angepasst werden. Auch ist bei Produktionen, bei denen ein fliegender Rollenwechsel vorgesehen ist, immer eine aufwändige Tänzerlageregelung notwendig. The known methods are relatively inflexible and can hardly be adapted to changing conditions, such as new material. Also, in productions where a flying role change is provided, always a complex dancer position control necessary.
Offenbarung der Erfindung Disclosure of the invention
Erfindungsgemäß wird ein Verfahren zum Betreiben einer Wicklereinrichtung einer Bearbeitungsmaschine zum Bearbeiten einer Warenbahn mit den Merkmalen des Patentanspruchs 1 vorgeschlagen. Vorteilhafte Ausgestaltungen sind Gegenstand der Unteransprüche sowie der nachfolgenden Beschreibung. According to the invention, a method for operating a winder device of a processing machine for processing a material web with the features of patent claim 1 is proposed. Advantageous embodiments are the subject of the dependent claims and the following description.
Vorteile der Erfindung Advantages of the invention
Die Erfindung basiert im wesentlichen auf der Erkenntnis, dass eine flexible und an die jeweiligen Bedingungen anpassbare Bahnspannungsregelung bzw. -einstellung für eine Wicklereinrichtung bereitstellbar ist, wenn online, d.h. während der Produktion, von einer ersten Bahnspannungsvorgabemethode zu einer zweiten Bahnspannungsvorgabemethode umgeschaltet wird. Der Begriff "Vorgabemethode" umfasst sowohl Regel- als auch Einstellmethoden. The invention is essentially based on the finding that a flexible and adaptable to the particular conditions web tension control or adjustment for a winder device is available when online, ie during production, from a first web tension setting method to a second Bahnspannungsvorgabemethode is switched. The term "default method" includes both control and adjustment methods.
Damit kann, beispielsweise durch Umschaltung in Abhängigkeit vom Material, die Regelstruktur besonders gut auf das Warenbahnmaterial abgestimmt werden. Insbesondere bei Produktionen mit fliegendem Rollenwechsel können besondere Vorteile erzielt werden. Zweckmäßigerweise wird dazu während der normalen Produktion eine Bahnspannungsvorgabe ohne Tänzer verwendet. Vor dem Rollenwechsel wird auf eine Tänzerlagevorgabe umgeschaltet, um die Störung, die durch den Rollenwechsel verursacht wird, besonders effektiv ausgleichen zu können. Nach erfolgtem Rollenwechsel wird schließlich wieder von der Tänzerlagevorgabe zu der ursprünglichen Bahnspannungsvorgabe zurückgeschaltet. Thus, for example, by switching depending on the material, the control structure can be particularly well matched to the web material. Especially in productions with flying reel change special advantages can be achieved. Appropriately, during normal production, a web tension specification without dancers is used. Before the roll change is switched to a dancer position default to compensate for the disturbance caused by the roll change, particularly effectively. After the roll change is finally switched back from the dancer roll default to the original web tension specification.
Ebenso kann auf vorteilhafte Weise bei einem Wechsel zu einem Material mit höherem Elastizitätsmodul (steiferes Material) von einer Drehzahlvorgabe zu einer Antriebsmomentvorgabe umgeschaltet werden. Bei einem Wechsel zu einem Material mit niedrigerem Elastizitätsmodul (weicheres Material) wird umgekehrt von einer Antriebsmomentvorgabe zu einer Drehzahlvorgabe umgeschaltet. Somit kann bei einem Materialwechsel die jeweils optimale Vorgabe-, d.h. Regelungs- oder Einstellungsmethode ausgewählt werden. Likewise, can be switched from a speed specification to a drive torque setting in an advantageous manner when switching to a material with a higher modulus of elasticity (stiffer material). When changing to a material with a lower modulus of elasticity (softer material), conversely, a drive torque input switches to a speed specification. Thus, in the case of a material change, the respective optimal default, i. Control or adjustment method.
Eine erfindungsgemäße Recheneinheit, z.B. ein Steuergerät einer Druckmaschine, ist, insbesondere programmtechnisch, dazu eingerichtet, ein erfindungsgemäßes Verfahren durchzuführen. An arithmetic unit according to the invention, e.g. a control unit of a printing press, is, in particular programmatically, adapted to perform a method according to the invention.
Auch die Implementierung der Erfindung in Form von Software ist vorteilhaft, da dies besonders geringe Kosten ermöglicht, insbesondere wenn eine ausführende Also, the implementation of the invention in the form of software is advantageous because this allows very low cost, especially if an executing
Recheneinheit noch für weitere Aufgaben genutzt wird und daher ohnehin vorhanden ist. Geeignete Datenträger zur Bereitstellung des Computerprogramms sind insbesondere Disketten, Festplatten, Flash-Speicher, EEPROMs, CD-ROMs, DVDs u.a.m. Auch ein Download eines Programms über Computernetze (Internet, Intranet usw.) ist möglich. Arithmetic unit is still used for other tasks and therefore already exists. Suitable media for providing the computer program are in particular floppy disks, hard disks, flash memories, EEPROMs, CD-ROMs, DVDs etc. It is also possible to download a program via computer networks (Internet, Intranet, etc.).
Weitere Vorteile und Ausgestaltungen der Erfindung ergeben sich aus der Beschreibung und der beiliegenden Zeichnung. Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.
Es versteht sich, dass die vorstehend genannten und , die nachfolgend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen. It is understood that the abovementioned and , which are still to be explained below features not only in the particular combination, but also in other combinations or alone, without departing from the scope of the present invention.
Die Erfindung ist anhand eines Ausführungsbeispiels in der Zeichnung schematisch dargestellt und wird im Folgenden unter Bezugnahme auf die Zeichnung ausführlich beschrieben. The invention is illustrated schematically with reference to an embodiment in the drawing and will be described in detail below with reference to the drawing.
Figurenbeschreibung figure description
Figur 1 zeigt schematisch eine Wicklereinrichtung mit einer Tänzerlageregelung. FIG. 1 shows schematically a winder device with a dancer position control.
Figur 2 zeigt die Wicklereinrichtung gemäß Figur 1 , nachdem eine Umschaltung zu einer Drehzahlvorgabemethode stattgefunden hat. FIG. 2 shows the winder device according to FIG. 1 after a changeover to a speed specification method has taken place.
Die Figuren 1 und 2 werden zusammenhängend und übergreifend beschrieben, wobei gleiche Elemente mit gleichen Bezugszeichen versehen sind. In den Figuren 1 und 2 ist eine Wicklereinrichtung 100 gezeigt, die gemäß einer bevorzugten Ausführungsform der Erfindung unter Anwendung unterschiedlicher Bahnspannungsvorgabemethoden betrieben werden kann. Im Folgenden soll erläutert werden, wie beispielsweise nach einem fliegenden Rollenwechsel von einer Tänzerlagevorgabe, wie sie in Figur 1 dargestellt ist, zu einer Drehzahlvorgabe, wie sie in Figur 2 dargestellt ist, umgeschaltet wird. Die Wicklereinrichtung 100 weist eine Wickelachse 101 auf, auf die eine Warenbahn 102 aufgewickelt wird. Es versteht sich, dass die Erfindung ebenso bei einem Abwickelvorgang anwendbar ist. Die Wicklereinrichtung 100 weist einen Tänzer 1 10 zum Vorgeben einer Bahnspannung sowie eine Kraftmessdose 120 zum Erfassen der Bahnspannung auf. Der von der Kraftmessdose 120 erfasste Bahnspannungswert wird an ein Steuergerät 130 übermittelt, welches zur Bahnspannungsregelung vorgesehen ist. Das Steuergerät 130 steuert einen Tänzerantrieb 1 11 an, der beispielsweise pneumatisch einen bestimmten Druck auf den Tänzer 110 ausübt. Die Tänzerlage wird von einem Tänzerlageregler 131 detektiert, der auf dieser Grundlage die Drehzahl oder das Antriebsmoment der Antriebsachse 101 vorgibt bzw. regelt. Es versteht sich, dass der Bahnspannungsregler 130 und der Tänzerregler 131 auch in einem gemeinsamen Steuergerät verkörpert sein können. Figures 1 and 2 are described in a coherent and comprehensive, wherein like elements are provided with the same reference numerals. FIGS. 1 and 2 show a winder device 100 which, according to a preferred embodiment of the invention, can be operated using different web tension presetting methods. The following is intended to explain, such as for example a flying role change from a dancer position preset, as shown in Figure 1, to a speed specification, as shown in Figure 2, is switched. The winder device 100 has a winding axis 101, onto which a material web 102 is wound. It is understood that the invention is equally applicable to an unwinding process. The winder device 100 has a dancer 1 10 for specifying a web tension and a load cell 120 for detecting the web tension. The measured by the load cell 120 web tension value is transmitted to a control unit 130, which is provided for web tension control. The control unit 130 controls a dancer drive 1 11, which exerts pneumatically a certain pressure on the dancer 110, for example. The dancer position is detected by a dancer position controller 131, which on this basis predetermines or regulates the rotational speed or the drive torque of the drive axle 101. It is understood that the web tension controller 130 and the dancer controller 131 may also be embodied in a common control unit.
Es ist erkennbar, dass die Tänzerlageregelung eine Vielzahl von Elementen erfordert und deshalb für den herkömmlichen Betrieb als überdimensioniert anzusehen ist. Der wesentliche Vorteil der Tänzerlageregelung besteht in der Möglichkeit, insbesondere bei einem fliegenden Rollenwechsel die durch den Rollenwechsel hervorgerufene Störung im Bahnspannungsverhalten durch das im Tänzer gespeicherte Bahnmaterial aufzufangen und Schäden an der Warenbahn zu vermeiden. Nach dem erfolgten Rollenwechsel ist oftmals eine Drehzahlregelung praktikabler. Gemäß der vorliegenden Ausführungsform der Erfindung wird daher nach dem erfolgten Rollenwechsel zu einer Drehzahl- oder Antriebsmomentvorgabe (Regelung), wie sie anhand Figur 2 dargestellt ist, umgeschaltet. Bei der Online-Umschaltung auf den tänzerfreien Betrieb wird zunächst der Tänzerlagesollwert auf einen Wert gestellt, der dem Tänzeranschlag entspricht. Wie in Figur 2 dargestellt, ist der Tänzer 1 10 bspw. am oberen Anschlag fixiert. Nach Erreichen des Tänzeranschlags wird mit der Struktur- bzw. Methodenumschaltung begonnen. Dabei wird gleichzeitig der Tänzerdruck reduziert, da nach der Umschaltung die Bahnspannung nicht mehr durch den Tänzerdruck vorgegeben wird. Nach der Umschaltung wird der Bahnspannungsregler 130 auf Grundlage der von der Kraftmessdose 120 erfassten Bahnspannung die Drehzahl oder das Antriebselement der Achse 101 regeln. It can be seen that the dancer position control requires a large number of elements and is therefore to be regarded as oversized for conventional operation. The essential advantage of the dancer position control is the possibility, in particular in the event of a flying roll change, to absorb the disturbance in the web tension behavior caused by the roll change by the web material stored in the dancer and to avoid damage to the material web. After the roll change is often a speed control practicable. According to the present embodiment of the invention is therefore after the roll change to a speed or drive torque setting (control), as shown with reference to Figure 2, switched. When switching online to dancer-free operation, the dancer position setpoint is first set to a value that corresponds to the dancer stop. As shown in FIG. 2, the dancer 1 10 is fixed to the upper stop, for example. After reaching the dancer stop, the structure or method switchover is started. At the same time, the dancer pressure is reduced because, after switching, the web tension is no longer specified by the dancer pressure. After the switchover, the web tension controller 130 will control the speed or the drive member of the axle 101 based on the web tension detected by the load cell 120.
Die Strukturumschaltung während des Produktionsbetriebes erfolgt zweckmäßigerweise derart, dass zum Zeitpunkt der Umschaltung keine Sprünge im Regelkreis auftreten. Beispielsweise wird bei einem PID-Regler bei einer Kraftmessdosen-Struktur mit Vorgabe eines Antriebsmomentes das momentane Antriebsmoment ausgelesen und der 1- Anteil des Reglers so vorgegeben, dass nach der Umschaltung dasselbe Soll- Drehmoment am Reglerausgang erscheint. Bei einer Kraftmessdosen-Struktur mit Vorgabe einer Antriebsdrehzahl wird zweckmäßigerweise die momentane Antriebsdrehzahl ausgelesen und der I-Anteil des Reglers so vorgegeben, dass nach der Umschaltung dieselbe Soll-Drehzahl am Reglerausgang erscheint. Auch eine Umschaltung auf eine Tänzerlagevorgabe kann auf vergleichbare Weise erfolgen, indem der I-Anteil entsprechend der Ist-Drehzahl vorgegeben wird. The structure switching during the production operation is expediently such that no jumps occur in the control loop at the time of switching. For example, in a PID controller in a load cell structure with specification of a drive torque, the instantaneous drive torque is read out and the 1- component of the controller is specified so that after switching the same setpoint torque appears at the controller output. In a load cell structure with specification of a drive speed, the instantaneous drive speed is expediently read out and the I-part of the controller is set so that after switching the same target speed appears at the controller output. A changeover to a dancer position specification can also be effected in a comparable manner by predefining the I component in accordance with the actual rotational speed.
Bei einer Umschaltung von einer Drehzahlvorgabe auf eine Tänzerlagevorgabe kann der Tänzerlagesollwert beispielsweise in die Tänzermitte gesetzt und mit der regelungstechnischen Umschaltung auch gleichzeitig der Tänzerdruck entsprechend eingestellt werden. Alternativ kann auch anstelle eines Fahrens auf den Tänzeranschlag eine mechanische Fixierung des Tänzers, z. B. mittels einer mechanischen Bremse, an anderer Stelle, beispielsweise in der Tänzermitte, erfolgen. Bei dieser Ausgestaltung muss der Tänzer vorteilhaft nicht erst an den Anschlag gefahren bzw. später in Mittelstellung zurückgefahren werden. When switching from a speed specification to a dancer position specification, the dancer position setpoint can be set, for example, in the center of the dancer, and the dancer pressure can also be set at the same time with the control technology changeover. Alternatively, instead of driving on the dancer stop a mechanical fixation of the dancer, z. B. by means of a mechanical brake, elsewhere, for example, in the dancer center done. In this embodiment the dancer has advantageously not first driven to the stop or later moved back to center position.

Claims

Ansprüche 1. Verfahren zum Betreiben einer Wicklereinrichrung (100) einer Claims 1. A method for operating a winder device (100) of a
Bearbeitungsmaschine zum Bearbeiten einer Warenbahn (102) , Processing machine for processing a web (102),
wobei eine Wicklereinrichtung (100) zum Auf- oder Abwickeln der Warenbahn (102) vorgesehen ist, wherein a winder device (100) is provided for winding or unwinding the material web (102),
wobei die Wicklereinrichtung (100) zur Vorgabe einer Bahnspannung betrieben wird, wobei während der Bearbeitung der Warenbahn ( 102) von einer ersten wherein the Wicklereinrichtung (100) is operated to specify a web tension, wherein during the processing of the web (102) of a first
Bahnspannungsvorgabemethode zu einer zweiten Bahnspannungsvorgabemethode umgeschaltet wird.  Bahnspannungsvorgabemethode is switched to a second Bahnspannungsvorgabemethode.
2. Verfahren nach Anspruch 1, wobei die erste und/oder zweite 2. The method of claim 1, wherein the first and / or second
Bahnspannungsvorgabemethode aus der Gruppe umfassend eine Regelung und Web tension preselection method from the group comprising a control and
Einstellung einer Tänzerlage, einer Drehzahl und eines Antriebsmoments ausgewählt ist.  Setting a dancer position, a speed and a drive torque is selected.
3. Verfahren nach Anspruch 1 oder 2, das vor und/oder nach einem fliegenden Rollenwechsel ausgeführt wird. 3. The method of claim 1 or 2, which is performed before and / or after a flying role change.
4. Verfahren nach Anspruch 3, wobei vor einem fliegenden Rollenwechsel zu einer Tänzerlagevorgabemethode umgeschaltet wird. 4. The method of claim 3, wherein is switched before a flying role change to a Tänzerlagevorgabemethode.
5. Verfahren nach Anspruch 3 oder 4, wobei nach einem fliegenden Rollenwechsel von einer Tänzerlagevorgabemethode umgeschaltet wird. 5. The method of claim 3 or 4, wherein is switched after a flying role change of a Tänzerlagevorgabemethode.
6. Verfahren nach Anspruch 5, wobei vor dem Umschalten der Tänzer (1 10) fixiert wird. 6. The method of claim 5, wherein before switching the dancer (1 10) is fixed.
7. Verfahren nach einem der vorstehenden Ansprüche, das vor und/oder nach einem Materialwechsel ausgeführt wird. 7. The method according to any one of the preceding claims, which is carried out before and / or after a change of material.
8. Verfahren nach Anspruch 7, wobei bei einem Wechsel zu einem Material mit geringerem Elastizitätsmodul zu einer Drehzahlvorgabemethode umgeschaltet wird. 8. The method of claim 7, wherein is switched to a speed specification method when changing to a material with a lower modulus of elasticity.
9. Verfahren nach Anspruch 7 oder 8, wobei bei einem Wechsel zu einem Material mit größerem Elastizitätsmodul zu einer Antriebsmomentvorgabemethode umgeschaltet wird. 9. The method of claim 7 or 8, wherein is switched to a drive torque setting method when changing to a material with a larger elastic modulus.
10. Recheneinheit, die dazu eingerichtet ist, ein Verfahren nach einem der vorstehenden Ansprüche durchzuführen. 10. Arithmetic unit which is adapted to perform a method according to one of the preceding claims.
EP10754697.0A 2009-11-09 2010-09-16 Method for operating a winding device Not-in-force EP2499076B1 (en)

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DE102009052462A DE102009052462A1 (en) 2009-11-09 2009-11-09 Method for operating a winder device
PCT/EP2010/005678 WO2011054415A1 (en) 2009-11-09 2010-09-16 Method for operating a winding device

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CN102596770A (en) 2012-07-18
WO2011054415A1 (en) 2011-05-12

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