EP1020391A1 - Unit for and method of feeding a web unwound from a winding roll to a processing machine - Google Patents

Unit for and method of feeding a web unwound from a winding roll to a processing machine Download PDF

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Publication number
EP1020391A1
EP1020391A1 EP99124513A EP99124513A EP1020391A1 EP 1020391 A1 EP1020391 A1 EP 1020391A1 EP 99124513 A EP99124513 A EP 99124513A EP 99124513 A EP99124513 A EP 99124513A EP 1020391 A1 EP1020391 A1 EP 1020391A1
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EP
European Patent Office
Prior art keywords
winding roll
web
material web
deflection device
fluctuations
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
EP99124513A
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German (de)
French (fr)
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EP1020391B1 (en
Inventor
Othmar Hoffmann
Bernhard Pasman
Armin Hutzenlaub
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Kampf GmbH and Co Maschinenfabrik
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Kampf GmbH and Co Maschinenfabrik
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Publication of EP1020391A1 publication Critical patent/EP1020391A1/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
    • B65H23/048—Registering, tensioning, smoothing or guiding webs longitudinally by positively actuated movable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/16—Irregularities, e.g. protuberances
    • B65H2511/166—Irregularities, e.g. protuberances relative to diameter, eccentricity or circularity

Definitions

  • the invention relates to a method and an apparatus for feeding one of Wound roll drawn material web to a processing machine according to the The preamble of claim 1 or claim 2.
  • material webs for example paper or cardboard webs, plastic or Metal foils, continuously fed to a subsequent processing machine, these are known to be unwound from winding rolls, which are in an unwinder are attached.
  • DE 37 04 677 describes a method and a device of the generic type known, in which the material web after Unwinding to compensate for length fluctuations performed around a deflection device becomes movable with a component in the direction of the incoming material web is stored.
  • the deflection device is a pendulum-mounted compensating roller, the Pendulum movement is dampened by a damping cylinder, its counterforce is proportional to the web tension.
  • the material web is soothed and with constant Voltage supplied to the processing machine.
  • the invention is therefore based on the object of a method and an apparatus Generic type to create with the (large) changes in length high frequencies can be compensated.
  • a compensation device deflecting the web is used, which are not freely movable, but by means of a controlled or regulated actuator is positioned with a component in the feed direction of the material web.
  • a Measuring device determines the fluctuations in the diameter of the winding roll, and in The actuator is dependent on the measured values from a control device controlled or regulated so that the compensation device in each case in the required position is moved.
  • the device according to the invention includes an unwinding device into which a Winding roll 1 is suspended for unwinding the material web 2.
  • a measuring device 3 continuously measures the diameter of the winding roll 1, and a control device determines the fluctuations in diameter from the measured values, caused by out of roundness in the winding roll 1.
  • the fluctuations in Diameters of the winding roll 1 lead to changes in length in the running web 2, compensated by the compensation device 4 arranged below become.
  • the compensation device 4 arranged behind the unwinding device consists of a roller 5 deflecting the web 2, the position of which with a component in Feed direction of the material web 2 is changeable.
  • a change in the position of the Roller 4 leads to a change in length of the railway line, with which there is a change in length the web 2 can compensate.
  • the roller 5 is as in the Position changeable deflector mounted on the free end of a lever 6, the extending downward in the direction of the winding roll 1 is pivotally suspended.
  • a control device For this purpose, its position is continuously determined and sent to a control device
  • a hydraulic piston-cylinder unit is used as the actuator or a position-controlled linear motor is used.
  • suspended roller 5 can also be a linearly movable roller or another deflecting element which can be moved linearly or along a curved path be used to change the length of the railway line.
  • the load cell 9 detects the amount of tension in the web 2.
  • the measurement signal is used to control the speed of the winding roll 1 and thus used for the control of the tension in the web 2.
  • the roller 5 is preset to a middle position.
  • the control device determines from the measurement signals of the measuring device 3 the fluctuations in the winding roll diameter and controls the actuator 7, the if necessary, the position of the roller 5 changed so that the fluctuations in the Web length can be compensated.
  • the compensation system (measuring device 3, Control device, actuator 7, roller 5) is designed so dynamically that fluctuations can be compensated with a frequency of up to 8 Hz.
  • FIG. 2 shows an expanded version of a device according to the invention, which an additional compensation device 10 to compensate for short pulsation waves higher frequency does not contain that of the compensation device 4 can be corrected.
  • the additional compensation device 10 consists of a deflection tube 11 which a compressed air supply is connected and the pipe wall of the web 2 wrapped area has a plurality of passage openings for the compressed air.
  • the web 2 is so contactless on a compressed air cushion 12 floating around the tube 11 steered.
  • the height of the air cushion 12 can depend on the performance of the compressed air blower can be varied between 3 mm and 12 mm. Since the air volume under the material web 2 is almost massless, very high-frequency vibrations with small amplitude be compensated very largely.
  • the interaction of the position-controlled roller 5 with the air cushion 12 allows fluctuations in the web length over a very to compensate for a wide frequency and amplitude range caused by non-roundness in the Winding roll 1 are caused.
  • the pressure of the air cushion 12 is dependent on the tensile stress in the web 2, can the value advantageously as a control variable for controlling the tension in the web 2 be used.
  • the pressure in the air cushion 12 is a Probe 13 measured and fed to a pressure / current converter 14. There will be a generates an appropriate electrical signal, which - as described above - for Regulation of the speed of the winding roll 1 and thus to regulate the tension in the Lane 2 is used.
  • FIG. 3 shows an embodiment in which the two compensation devices 5, 10 according to FIG. 2 are combined in a single device:
  • the position-controlled roller is replaced by an air tube 15 as a deflection device, the Structure corresponds to the air tube 11 according to FIG. 2, and this additionally corresponds to the roller 5 Figure 2 is changeable in its position.
  • the web 2 is contactless on one Air cushion 12 guided around the pipe 15 to a subsequent deflecting roller 16 and from this is directed to the processing machine.
  • the position of the air tube 15 is on the in the embodiment of Figure 1 described manner depending on the Measuring signal of the measuring device 3 controlled, that is, from the fluctuations in the diameter the winding roll 1.
  • the air cushion 12 automatically compensates for high-frequency pulsations with low amplitude. In this embodiment too, the value of Pressure in the air cushion 12 used to control the tension of the web 2, as in the embodiment of Figure 3 described.

Abstract

For balancing out length variations the strip(2) is guided around a diverting arrangement(5) which can be moved in the direction of the moving strip. The position of the diverting roll is continuously varied by an adjusting member(7) linked to a control unit according to the changing unwinding roll diameter. An Independent claim is made for the process equipment which includes a controlled adjuster(7) for the diverting roll(5), a system for measuring the diameter of the unwinding roll(1) and a control unit.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Zuführen einer von einer Wickelrolle abgezogenen Materialbahn zu einer Verarbeitungsmaschine gemäß dem Oberbegriff des Patentanspruchs 1 bzw. des Patentanspruchs 2.The invention relates to a method and an apparatus for feeding one of Wound roll drawn material web to a processing machine according to the The preamble of claim 1 or claim 2.

Um Materialbahnen, beispielsweise Papier- oder Kartonbahnen, Kunststoff- oder Metallfolien, kontinuierlich einer nachfolgenden Verarbeitungsmaschine zuzuführen, werden diese bekannterweise von Wickelrollen abgewickelt, die in eine Abwickelvorrichtung eingehängt sind.To material webs, for example paper or cardboard webs, plastic or Metal foils, continuously fed to a subsequent processing machine, these are known to be unwound from winding rolls, which are in an unwinder are attached.

Sind die Wickelrollen nicht gleichmäßig rund, so führt dies beim Abwickeln zu Längenänderungen in der ablaufenden Materialbahn, die zu Störungen in der nachfolgenden Verarbeitungsmaschine führen können. Aus der DE 37 04 677 sind ein Verfahren und eine Vorrichtung der gattungsgemäßen Art bekannt, bei der die Materialbahn nach dem Abwickeln zum Ausgleich von Längenschwankungen um eine Umlenkeinrichtung geführt wird, die mit einer Komponente in Richtung der zulaufenden Materialbahn bewegbar gelagert ist. Die Umlenkeinrichtung ist eine pendelnd aufgehängte Ausgleichswalze, deren Pendelbewegung von einem Dämpfungszylinder gedämpft wird, dessen Gegenkraft proportional der Bahnspannung ist. Die Materialbahn wird so beruhigt und mit konstanter Spannung der Verarbeitungsmaschine zugeführt.If the winding rolls are not evenly round, this leads to unwinding Changes in length in the running material web, which lead to disturbances in the following Processing machine can lead. DE 37 04 677 describes a method and a device of the generic type known, in which the material web after Unwinding to compensate for length fluctuations performed around a deflection device becomes movable with a component in the direction of the incoming material web is stored. The deflection device is a pendulum-mounted compensating roller, the Pendulum movement is dampened by a damping cylinder, its counterforce is proportional to the web tension. The material web is soothed and with constant Voltage supplied to the processing machine.

Diese bekannte Lösung mit einem Luftzylinder als Dämpfungselement ist nur in der Lage, von Unrundheiten in der Wickelrolle ausgelöste Pulsationen in der Materialbahn mit begrenzten Frequenzen und Amplituden zufriedenstellend auszugleichen. Bei hohen Frequenzen (beispielsweise größer als 3 Hz) und großen Längenänderungen kann die Ausgleichswalze aufgrund ihrer Massenträgheit die erforderlichen Ausgleichsbewegungen nicht ausreichend schnell durchzuführen.This known solution with an air cylinder as a damping element is only able to pulsations in the material web triggered by out-of-roundness in the winding roll to adequately compensate for limited frequencies and amplitudes. At high Frequencies (for example greater than 3 Hz) and large changes in length can Compensating roller due to its inertia the necessary compensating movements not performing quickly enough.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung der gattungsgemäßen Art zu schaffen, mit dem (der) auch große Längenänderungen mit hohen Frequenzen ausgeglichen werden können.The invention is therefore based on the object of a method and an apparatus Generic type to create with the (large) changes in length high frequencies can be compensated.

Diese Aufgabe wird mit den Merkmalen des Patentanspruchs 1 bzw. des Patentanspruchs 2 gelöst.This object is achieved with the features of claim 1 and claim 2 solved.

Nach der Erfindung wird eine die Bahn umlenkende Kompensationseinrichtung eingesetzt, die nicht frei bewegbar, sondern mittels eines gesteuerten oder geregelten Stellantriebs mit einer Komponente in Zulaufrichtung der Materialbahn positionierbar gelagert ist. Eine Meßeinrichtung bestimmt die Schwankungen im Durchmesser der Wickelrolle, und in Abhängigkeit von den gemessenen Werten wird der Stellantrieb von einer Steuereinrichtung so gesteuert oder geregelt, dass die Kompensationseinrichtung jeweils in die erforderliche Position bewegt wird.According to the invention, a compensation device deflecting the web is used, which are not freely movable, but by means of a controlled or regulated actuator is positioned with a component in the feed direction of the material web. A Measuring device determines the fluctuations in the diameter of the winding roll, and in The actuator is dependent on the measured values from a control device controlled or regulated so that the compensation device in each case in the required position is moved.

Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausgestaltungen der Erfindung.The subclaims contain preferred, since particularly advantageous, configurations of the Invention.

Die Zeichnung dient zur Erläuterung der Erfindung anhand schematisch dargestellter Ausführungsbeispiele:

Figur 1
zeigt die Seitenansicht einer Abwickelvorrichtung mit einer nachfolgenden an einem Hebel aufgehängten Ausgleichswalze mit einem Stellantrieb.
Figur 2
zeigt eine Vorrichtung mit einer zusätzlichen Einrichtung zur Kompensation von kurzen Pulsationswellen in der Materialbahn.
Figur 3
zeigt eine Ausführungsform, bei der vorteilhaft sowohl kurze als auch lange Pulsationswellen mit einer einzigen Kompensationseinrichtung ausgeglichen werden.
The drawing serves to explain the invention on the basis of schematically illustrated exemplary embodiments:
Figure 1
shows the side view of an unwinder with a subsequent compensating roller suspended on a lever with an actuator.
Figure 2
shows a device with an additional device for compensating for short pulsation waves in the material web.
Figure 3
shows an embodiment in which both short and long pulsation waves are advantageously compensated for with a single compensation device.

Die Vorrichtung gemäß der Erfindung enthält eine Abwickelvorrichtung, in die eine Wickelrolle 1 zum Abwickeln der Materialbahn 2 eingehängt wird. Eine Meßeinrichtung 3 mißt beim Abwickeln berührungslos kontinuierlich den Durchmesser der Wickelrolle 1, und eine Steuereinrichtung bestimmt aus den Meßwerten die Schwankungen im Durchmesser, die durch Unrundheiten in der Wickelrolle 1 verursacht werden. Die Schwankungen im Durchmesser der Wickelrolle 1 führen zu Längenänderungen in der ablaufenden Bahn 2, die von der nachfolgend angeordneten Kompensationseinrichtung 4 ausgeglichen werden.The device according to the invention includes an unwinding device into which a Winding roll 1 is suspended for unwinding the material web 2. A measuring device 3 continuously measures the diameter of the winding roll 1, and a control device determines the fluctuations in diameter from the measured values, caused by out of roundness in the winding roll 1. The fluctuations in Diameters of the winding roll 1 lead to changes in length in the running web 2, compensated by the compensation device 4 arranged below become.

Die hinter der Abwickelvorrichtung angeordnete Kompensationseinrichtung 4 besteht aus einer die Bahn 2 umlenkenden Walze 5, deren Position mit einer Komponente in Zulaufrichtung der Materialbahn 2 veränderbar ist. Eine Veränderung der Position der Walze 4 führt zu einer Längenänderung der Bahnstrecke, mit der sich eine Längenänderung der Bahn 2 ausgleichen läßt. Im vorliegenden Beispiel ist die Walze 5 als in der Position veränderbare Umlenkeinrichtung am freien Ende eines Hebels 6 gelagert, der sich nach unten erstreckend in Richtung zur Wickelrolle 1 hin schwenkbar aufgehängt ist. Am Hebel 6 greift ein Stellantrieb 7 an, der von einer Steuereinrichtung gesteuert oder geregelt die Position der Walze 5 einstellt. Bevorzugt wird die Position des Stellantriebs 7 geregelt. Dazu wird kontinuierlich seine Stellung bestimmt und an eine Regeleinrichtung gemeldet.Als Stellantrieb wird beispielsweise eine hydraulische Kolben-Zylinder-Einheit oder ein stellungsgeregelter Linearmotor verwendet. Alternativ zu einer an einem Schwenkhebel 6 aufgehängten Walze 5 kann auch eine linear verschiebbare Walze oder ein anderes linear oder entlang einer gekrümmten Bahn bewegbares Umlenkelement eingesetzt werden, um die Länge der Bahnstrecke zu verändern.The compensation device 4 arranged behind the unwinding device consists of a roller 5 deflecting the web 2, the position of which with a component in Feed direction of the material web 2 is changeable. A change in the position of the Roller 4 leads to a change in length of the railway line, with which there is a change in length the web 2 can compensate. In the present example, the roller 5 is as in the Position changeable deflector mounted on the free end of a lever 6, the extending downward in the direction of the winding roll 1 is pivotally suspended. An actuator 7, which is controlled by a control device, acts on the lever 6 regulates the position of the roller 5. The position of the actuator 7 is preferred regulated. For this purpose, its position is continuously determined and sent to a control device For example, a hydraulic piston-cylinder unit is used as the actuator or a position-controlled linear motor is used. Alternatively to one on one Swivel lever 6 suspended roller 5 can also be a linearly movable roller or another deflecting element which can be moved linearly or along a curved path be used to change the length of the railway line.

In Bahnlaufrichtung hinter der Umlenkwalze 5 folgt eine weitere Umlenkwalze 8, die mit einer Kraftmeßdose 9 verbunden ist. Die Kraftmeßdose 9 erfaßt die Höhe der Zugspannung in der Bahn 2. Das Meßsignal wird für die Regelung der Drehzahl der Wickelrolle 1 und somit für die Regelung der Zugspannung in der Bahn 2 herangezogen.In the web running direction behind the deflecting roller 5 there follows a further deflecting roller 8, which with a load cell 9 is connected. The load cell 9 detects the amount of tension in the web 2. The measurement signal is used to control the speed of the winding roll 1 and thus used for the control of the tension in the web 2.

Die in Figur 1 dargestellte Vorrichtung arbeitet wie folgt:The device shown in Figure 1 operates as follows:

Zunächst wird die Walze 5 auf eine Mittellage voreingestellt. Beim Abwickeln mißt die Meßeinrichtung 3 kontinuierlich berührungslos den Radius der Wickelrolle 1 an der Bahnablaufstelle. Aus den Meßsignalen der Meßeinrichtung 3 bestimmt die Steuereinrichtung die Schwankungen im Wickelrollendurchmesser und regelt den Stellantrieb 7, der erforderlichenfalls die Position der Walze 5 so verändert, dass die Schwankungen in der Bahnlänge ausgeglichen werden. Das Kompensationssystem (Meßeinrichtung 3, Steuereinrichtung, Stellantrieb 7, Walze 5) ist so dynamisch ausgelegt, dass Schwankungen mit einer Frequenz bis zu 8 Hz ausgeglichen werden können.First, the roller 5 is preset to a middle position. When unwinding measures Measuring device 3 continuously without contact the radius of the winding roll 1 on the Railway runoff point. The control device determines from the measurement signals of the measuring device 3 the fluctuations in the winding roll diameter and controls the actuator 7, the if necessary, the position of the roller 5 changed so that the fluctuations in the Web length can be compensated. The compensation system (measuring device 3, Control device, actuator 7, roller 5) is designed so dynamically that fluctuations can be compensated with a frequency of up to 8 Hz.

In Figur 2 ist eine erweiterte Ausführung einer erfindungsgemäßen Vorrichtung dargestellt, die eine zusätzliche Kompensationseinrichtung 10 zum Ausgleich von kurzen Pulsationswellen höherer Frequenz enthält, die von der Kompensationseinrichtung 4 nicht ausgeregelt werden können.FIG. 2 shows an expanded version of a device according to the invention, which an additional compensation device 10 to compensate for short pulsation waves higher frequency does not contain that of the compensation device 4 can be corrected.

Die zusätzliche Kompensationseinrichtung 10 besteht aus einem Umlenkrohr 11, das an eine Druckluftzufuhr angeschlossen ist und dessen Rohrwand im von der Bahn 2 umschlungenen Bereich eine Vielzahl von Durchtrittsöffnungen für die Druckluft aufweist. Die Bahn 2 wird so berührungslos auf einem Druckluftpolster 12 schwebend um das Rohr 11 gelenkt. Die Höhe des Luftpolsters 12 kann über die Leistung des Druckluftgebläses zwischen 3 mm und 12 mm variiert werden. Da das Luftvolumen unter der Materialbahn 2 annähernd masselos ist, können sehr hochfrequente Schwingungen mit kleiner Amplitude sehr weitgehend kompensiert werden. Das Zusammenwirken der lagegeregelten Walze 5 mit dem Luftpolster 12 ermöglicht es, Schwankungen in der Bahnlänge über einen sehr weiten Frequenz- und Amplitudenbereich auszugleichen, die durch Unrundheiten in der Wickelrolle 1 verursacht werden.The additional compensation device 10 consists of a deflection tube 11 which a compressed air supply is connected and the pipe wall of the web 2 wrapped area has a plurality of passage openings for the compressed air. The web 2 is so contactless on a compressed air cushion 12 floating around the tube 11 steered. The height of the air cushion 12 can depend on the performance of the compressed air blower can be varied between 3 mm and 12 mm. Since the air volume under the material web 2 is almost massless, very high-frequency vibrations with small amplitude be compensated very largely. The interaction of the position-controlled roller 5 with the air cushion 12 allows fluctuations in the web length over a very to compensate for a wide frequency and amplitude range caused by non-roundness in the Winding roll 1 are caused.

Da der Druck des Luftpolsters 12 von der Zugspannung in der Bahn 2 abhängig ist, kann der Wert vorteilhaft als Steuergröße zur Steuerung der Zugspannung in der Bahn 2 verwendet werden. Wie in Figur 2 angedeutet, wird der Druck im Luftpolster 12 über eine Sonde 13 gemessen und einem Druck-/Strom-Wandler 14 zugeführt. Dort wird ein entsprechendes elektrisches Signal erzeugt, das - wie vorstehend beschrieben - zur Regelung der Drehzahl der Wickelrolle 1 und somit zur Regelung der Zugspannung in der Bahn 2 verwendet wird.Since the pressure of the air cushion 12 is dependent on the tensile stress in the web 2, can the value advantageously as a control variable for controlling the tension in the web 2 be used. As indicated in Figure 2, the pressure in the air cushion 12 is a Probe 13 measured and fed to a pressure / current converter 14. There will be a generates an appropriate electrical signal, which - as described above - for Regulation of the speed of the winding roll 1 and thus to regulate the tension in the Lane 2 is used.

In Figur 3 ist eine Ausführungsform dargestellt, bei der die beiden Kompensationseinrichtungen 5, 10 nach Figur 2 in einer einzigen Einrichtung zusammengefaßt sind: FIG. 3 shows an embodiment in which the two compensation devices 5, 10 according to FIG. 2 are combined in a single device:

Die lagegesteuerte Walze ist durch ein Luftrohr 15 als Umlenkeinrichtung ersetzt, dessen Aufbau dem Luftrohr 11 nach Figur 2 entspricht und das zusätzlich wie die Walze 5 nach Figur 2 in seiner Position veränderbar ist. Die Bahn 2 wird berührungslos auf einem Luftpolster 12 um das Rohr 15 zu einer nachfolgenden Umlenkwalze 16 geführt und von dieser zu der Verarbeitungsmaschine geleitet. Die Position des Luftrohrs 15 wird auf die bei der Ausführungsform nach Figur 1 beschriebene Weise in Abhängigkeit von dem Meßsignal der Meßeinrichtung 3 gesteuert, also von den Schwankungen im Durchmesser der Wickelrolle 1. Das Luftpolster 12 kompensiert automatisch hochfrequente Pulsationen mit geringer Amplitude. Auch bei dieser Ausführungsform wird vorteilhaft der Wert des Drucks im Luftpolster 12 zur Steuerung der Zugspannung der Bahn 2 verwendet, wie bei der Ausführungsform nach Figur 3 beschrieben.The position-controlled roller is replaced by an air tube 15 as a deflection device, the Structure corresponds to the air tube 11 according to FIG. 2, and this additionally corresponds to the roller 5 Figure 2 is changeable in its position. The web 2 is contactless on one Air cushion 12 guided around the pipe 15 to a subsequent deflecting roller 16 and from this is directed to the processing machine. The position of the air tube 15 is on the in the embodiment of Figure 1 described manner depending on the Measuring signal of the measuring device 3 controlled, that is, from the fluctuations in the diameter the winding roll 1. The air cushion 12 automatically compensates for high-frequency pulsations with low amplitude. In this embodiment too, the value of Pressure in the air cushion 12 used to control the tension of the web 2, as in the embodiment of Figure 3 described.

Claims (6)

Verfahren zum Zuführen einer von einer Wickelrolle (1) abgezogenen Materialbahn (2) zu einer Verarbeitungsmaschine, bei dem die Materialbahn (2) nach dem Abwickeln zum Ausgleich von Längenschwankungen um eine Umlenkeinrichtung (5, 15) geführt wird, die mit einer Komponente in Richtung der zulaufenden Materialbahn (2) bewegbar gelagert ist, dadurch gekennzeichnet, dass die Schwankungen im Durchmesser der Wickelrolle (1) kontinuierlich ermittelt werden und die Position der Umlenkeinrichtung (5, 15) in Abhängigkeit von den Schwankungen im Wickelrollendurchmesser von einer Steuereinrichtung über einen angeschlossenen Stellantrieb (7) gesteuert oder geregelt wird.Method for feeding a material web (2) drawn off from a winding roll (1) to a processing machine, in which the material web (2), after unwinding, is guided around a deflection device (5, 15) to compensate for length fluctuations of the incoming material web (2) is movably mounted, characterized in that the fluctuations in the diameter of the winding roll (1) are continuously determined and the position of the deflection device (5, 15) depending on the fluctuations in the winding roll diameter from a control device via a connected actuator (7) controlled or regulated. Vorrichtung zum Zuführen einer von einer Wickelrolle (1) abgezogenen Materialbahn (2) zu einer Verarbeitungsmaschine mit einer Abwickelvorrichtung für die Wickelrolle (1) und einer nachfolgend angeordneten Umlenkeinrichtung (5, 15) für die Materialbahn (2), die zum Ausgleich von Längenschwankungen in der Materialbahn (2) mit einer Komponente in Zulaufrichtung der Materialbahn (2) bewegbar gelagert ist, gekennzeichnet durch folgende Merkmale:
Die Umlenkeinrichtung (5, 15) ist mittels eines gesteuerten oder geregelten Stellantriebs (7) positionierbar gelagert, eine Meßeinrichtung zur Messung des Durchmessers der Wickelrolle (1) beim Abwickeln, und eine Steuereinrichtung, die aus den Durchmesser-Meßwerten die Schwankungen bestimmt und in Abhängigkeit von den Meßwerten den Stellantrieb (7) der Umlenkeinrichtung (5, 15) steuert oder regelt. Device for feeding a material web (2) drawn off from a winding roll (1) to a processing machine an unwinding device for the winding roll (1) and a downstream deflection device (5, 15) for the material web (2), which is movably mounted with a component in the feed direction of the material web (2) to compensate for length fluctuations in the material web (2), characterized by the following features:
The deflection device (5, 15) is positioned so that it can be positioned by means of a controlled or regulated actuator (7), a measuring device for measuring the diameter of the winding roll (1) during unwinding, and a control device which determines the fluctuations from the measured diameter values and controls or regulates the actuator (7) of the deflection device (5, 15) as a function of the measured values. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Umlenkeinrichtung eine lagegeregelte Umlenkwalze (5) ist.Apparatus according to claim 2, characterized in that the deflection device is a position-controlled deflection roller (5). Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Umlenkeinrichtung ein die Bahn (2) berührungslos umlenkendes Luftrohr (15) ist.Apparatus according to claim 2, characterized in that the deflection device is an air tube (15) deflecting the web (2) without contact. Vorrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass hinter der ersten Umlenkeinrichtung (5) eine weitere Umlenkeinrichtung (15) angeordnet ist, von der die Bahn (2) auf einem Luftpolster schwebend berührungslos umgelenkt wird.Apparatus according to claim 2 or 3, characterized in that a further deflection device (15) is arranged behind the first deflection device (5), from which the web (2) is deflected in a contactless manner while floating on an air cushion. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass der Druck im Luftpolster (12) gemessen und zur Steuerung der Zugspannung in der Bahn (2) verwendet wird.Apparatus according to claim 5 or 6, characterized in that the pressure in the air cushion (12) is measured and used to control the tension in the web (2).
EP99124513A 1999-01-11 1999-12-09 Unit for and method of feeding a web unwound from a winding roll to a processing machine Expired - Lifetime EP1020391B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19900536 1999-01-11
DE19900536A DE19900536A1 (en) 1999-01-11 1999-01-11 Method and device for feeding a web of material drawn from a winding roll to a processing machine

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EP1020391A1 true EP1020391A1 (en) 2000-07-19
EP1020391B1 EP1020391B1 (en) 2003-05-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849649A1 (en) * 2003-01-08 2004-07-09 Komori Chambon Shaping apparatus with interchangeable plates

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657198A (en) * 1984-05-18 1987-04-14 Fuji Photo Film Co., Ltd. Apparatus for measuring the thickness of a roll winding on or unwinding from a core
DE3704677A1 (en) * 1986-12-27 1988-07-07 Kampf Gmbh & Co Maschf Process and device for the edge-regulated introduction of a material web into a processing machine
DE4425355A1 (en) * 1993-07-16 1995-01-26 Siemens Ag Regulation for the drive of a winder (coiler)
DE19614300A1 (en) * 1995-04-21 1996-10-24 Abb Patent Gmbh Automatic compensation of out of round roller rotation, esp. for winding webs of paper or plastics film
US5659229A (en) * 1995-01-31 1997-08-19 Kimberly-Clark Worldwide, Inc. Controlling web tension by actively controlling velocity of dancer roll

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657198A (en) * 1984-05-18 1987-04-14 Fuji Photo Film Co., Ltd. Apparatus for measuring the thickness of a roll winding on or unwinding from a core
DE3704677A1 (en) * 1986-12-27 1988-07-07 Kampf Gmbh & Co Maschf Process and device for the edge-regulated introduction of a material web into a processing machine
DE4425355A1 (en) * 1993-07-16 1995-01-26 Siemens Ag Regulation for the drive of a winder (coiler)
US5659229A (en) * 1995-01-31 1997-08-19 Kimberly-Clark Worldwide, Inc. Controlling web tension by actively controlling velocity of dancer roll
DE19614300A1 (en) * 1995-04-21 1996-10-24 Abb Patent Gmbh Automatic compensation of out of round roller rotation, esp. for winding webs of paper or plastics film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849649A1 (en) * 2003-01-08 2004-07-09 Komori Chambon Shaping apparatus with interchangeable plates

Also Published As

Publication number Publication date
DE19900536A1 (en) 2000-07-13
EP1020391B1 (en) 2003-05-02
DE59905311D1 (en) 2003-06-05

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