EP1514816A1 - Winding machine for winding a material web - Google Patents

Winding machine for winding a material web Download PDF

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Publication number
EP1514816A1
EP1514816A1 EP04103919A EP04103919A EP1514816A1 EP 1514816 A1 EP1514816 A1 EP 1514816A1 EP 04103919 A EP04103919 A EP 04103919A EP 04103919 A EP04103919 A EP 04103919A EP 1514816 A1 EP1514816 A1 EP 1514816A1
Authority
EP
European Patent Office
Prior art keywords
web
luftabquetschwalze
winding machine
winding
carrier drum
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
EP04103919A
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German (de)
French (fr)
Other versions
EP1514816B1 (en
Inventor
Ewald Wetschenbacher
Jörg Maurer
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Voith Patent GmbH
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Voith Paper Patent GmbH
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Publication date
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Publication of EP1514816A1 publication Critical patent/EP1514816A1/en
Application granted granted Critical
Publication of EP1514816B1 publication Critical patent/EP1514816B1/en
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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
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • 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
    • 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

Definitions

  • the invention relates to a winding machine for winding a material web, in particular a fibrous web, with a squeezable against a spool air squeegee.
  • the center drive of the spool, its torque with closed nip preferably according to a Curve is controlled, takes over with the nip open the regulation of the train.
  • the web train is arranged above a front of the carrier drum Measuring roller, and the speed and / or torque of the center drive the spool changed according to the measured web tension.
  • the speed of the Lucasabquetschwalze is open during the winding process Nip adapted to the speed of the spool.
  • Tambourcic with open nip is the uniformity the train train problematic.
  • the wound up drum has a very high mass moment of inertia, which makes a precise web tension control difficult.
  • the center drive when winding with open nip a very high torque muster. Therefore, the drive motor, the frequency converter and the Mechanics of the spool are dimensioned accordingly for these heavy loads become.
  • the invention therefore has the task in a Tambour grill the train to keep it evenly even when the nip is open. In addition, the center drive of the spool are relieved.
  • the invention solves the problem by a winding machine of the beginning mentioned type, in accordance with the invention, the speed and / or torque the Lucasabquetschwalze depending on a current web tension of the web is controllable. Consequently, the rotational speed and / or the torque of the Lucasabquetschwalze increased if the measured current web tension is too low. In the opposite case, the speed and / or the torque of the Lucasabquetschwalze lowered if the measured current web tension is too high. In this way, the web train as evenly as possible with open nip being held.
  • the Luftabquetschwalze with a measuring device equipped for measuring the train. Then the squeegee at the Lucasabquetschwalze measured web tension to correct the speed of the air squeegee be used.
  • a measurement of the web tension at the air squeegee, on which also the train is to be corrected, also allows for open nip a very high uniformity of the train, the requirements to the uniformity of the train from each to be wound Suspend material web.
  • there is an advantage in measuring the train in the open train that is, no roller between the measuring device and the Air squeeze roller is present.
  • the carrier drum with a measuring device for measuring the web tension be equipped, and the rotational speed of the carrier drum depending on the carrier drum measured current web tension of the web are regulated.
  • This embodiment is preferably only in a large wrap the Carrying drum possible.
  • the Luftabquetschwalze with a relatively large diameter provided to the largest possible torque with a preferably relatively ensure small roller drive.
  • the measuring devices of the Lucasabquetschwalze and / or the carrier drum and / or the guide roller and / or the spreader roller with at least one load cell and / or with at least one piezoelectric element be provided.
  • the piezoelectric elements may be in the state of the art be known manner distributed to the respective rollers. They then enable the measurement of a central railway train or the measurement of a railway train profile along the web width.
  • the central drive only needs to apply 80 percent of the train, so that the central drive thus be dimensioned considerably smaller can.
  • the Heilabquetschwalze may be formed in one or more parts.
  • the multipart Air squeegee roller can be provided with bearings between individual sub-rollers be on which the Heilabquetschwalze is supported. Support forces working on act on the bearings, then press the Heilabquetschwalze evenly over their Length against the spool, for optimum contact pressure of the air squeegee to ensure against the drumming.
  • the one-piece Lucasabquetschwalze for optimum contact pressure against the spool with back-up rollers be provided, which then support the Heilabquetschwalze between their ends and press against the tambour.
  • a particularly good torque and optimum contact pressure against the Tambour is achieved with the one-piece air squeegee when its diameter between 500 millimeters and 900 millimeters.
  • the multi-part Lucasabquetschwalze delivers for diameters between 340 millimeters and 600 millimeters a satisfactory torque and a satisfactory contact pressure.
  • the Luftabquetschwalze at least one support roller exhibit.
  • the invention relates to a method for controlling the web of train Material web, in particular the fibrous web, during the winding process on the winding machine, according to the invention, the Heilabquetschwalze by a change in their speed and / or their torque corrects the web tension.
  • the carrier drum by a change in their speed and / or its torque correct the web tension.
  • Fig. 1 shows a winding machine 10 with a spool 11, on which a web 12 is wound up.
  • a Measuring device 15 attached to the web of web material web 12 at the Guide roll 14 measures.
  • the measuring device 15 preferably measures when closed Nip and they are connected to a drive of the Lucasabquetschwalze 13. Consequently may be the speed and / or torque of the Lucasabquetschwalze 13 dependent be corrected by the measured on the guide roller 14 web tension, whereby Also, the web tension in the air squeegee 13 is corrected. If the measured web tension is too low, the speed of the air squeegee becomes 13 increased.
  • Fig. 2 shows a winding machine 20, wherein the web 12 on the spool 11 is wound up.
  • a measuring device 21 for measurement the web of material web 12 On the carrier drum 17 is a measuring device 21 for measurement the web of material web 12 arranged.
  • the measuring device 21 is connected to the drive of the Heilabquetschwalze 13.
  • the speed the Luftabquetschwalze 13 according to the measured at the support drum 17 Correction corrected, whereby the web of material web 12 in Area of Lucasabquetschwalze 13 is corrected.
  • FIG. 3 shows a winding machine 30 having two measuring devices 31 and 32 is provided, each at the Lucasabquetschwalze 13 and on the carrier drum 17th are arranged.
  • the measuring means 31 at the Lucasabquetschwalze 13 of the web of material web 12 measured, and at a from a setpoint deviating web tension the speed of the Heilabquetschwalze 13 changed accordingly.
  • the measuring device 32 is also at the Cartridge 17 of the web tension measured, and at a deviating from the setpoint Web pull the speed of the carrier drum 17 also adjusted. Since at the Winding machine 30 of the train is corrected directly at the site, this delivers Arrangement optimum results with regard to a uniform as possible Bahnzugs.
  • the uniformity of the Optimize railway train By measuring the train at two different places and through the correction directly at the two measurement sites, the uniformity of the Optimize railway train additionally.
  • the winding machine be provided with only one measuring device, the speed correction is performed directly at the measuring location. Also in the winding machine 30 is the speed of the drive 16 with the nip open depends on the torque of Drive 16 controlled.
  • a Heilabquetschwalze 40th have several sub-rollers 41. Between the individual sub-rollers 41 are then arranged bearings 42 on which the Heilabquetschwalze 40 is supported. Supporting forces F acting on the bearings 42 then push the air squeeze roller 40 evenly over its length against a tambour not shown here.
  • a Gutautschwalze 50 may also be integrally formed, wherein the Lucasabquetschwalze 50 for optimal contact with one here not closer shown spool is provided with support rollers 51.
  • the support rollers 51 may be formed in a more general form as any support elements.

Landscapes

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

Abstract

The winder (10), to wind a web of paper etc. into a roll (11), has a roller (13) pressed against the roll to squeeze out any air. The rotary speed and/or torque at the air displacement roller is controlled by the actual tension of the web (12) drawn on to the winding roll. A sensor (15) at a web guide roller (14) measures the web tension, with a link to the air displacement roller.

Description

Die Erfindung betrifft eine Wickelmaschine zum Wickeln einer Materialbahn, insbesondere einer Faserstoffbahn, mit einer gegen einen Tambour drückbaren Luftabquetschwalze.The invention relates to a winding machine for winding a material web, in particular a fibrous web, with a squeezable against a spool air squeegee.

Beim Wickeln einer Materialbahn muss ein bestimmter von der Materialbahn abhängiger Bahnzug, der über die Breite der Materialbahn wirkt, eingehalten werden. Aus diesem Grund ist es wichtig, den Bahnzug während des gesamten Wickelvorganges zu überwachen und zu regeln. Bei einem Tambourwechsel muss ein Nip zwischen einer Tragtrommel und dem Tambour während des Wickelvorganges geöffnet werden. Somit sind bei einem Tambourwechsel an die Überwachung und Regelung des Bahnzugs im Vergleich zum Wickelvorgang mit geschlossenen Nip, bei dem die Tragtrommel gegen den Tambour drückt, besondere Anforderungen gestellt. Beim Tambourwechsel mit offenem Nip wird die Luftabquetschwalze (Hilfswalze) gegen den Tambour gedrückt. Der Zentrumsantrieb des Tambours, dessen Drehmoment bei geschlossenem Nip vorzugsweise entsprechend einer Kurve gesteuert wird, übernimmt bei geöffnetem Nip die Regelung des Bahnzugs. Zu diesem Zweck wird der Bahnzug über eine vor der Tragtrommel angeordnete Messwalze gemessen, und die Drehzahl und/oder das Drehmoment des Zentrumsantriebs des Tambours entsprechend des gemessenen Bahnzugs verändert. Die Drehzahl der Luftabquetschwalze wird während des Wickelvorganges mit offenem Nip an die Drehzahl des Tambours angepasst. Bei diesem aus dem Stand der Technik bekannten Tambourwechsel mit offenem Nip ist jedoch die Gleichmäßigkeit des Bahnzugs problematisch. Die Verfahrensbewegungen, insbesondere Auf- und Abbewegungen, Beschleunigungen, Verzögerungen und dergleichen, des Tambours während des Tambourwechsels führen zu Änderungen des Bahnzugs. Außerdem hat der aufgewickelte Tambour ein sehr hohes Massenträgheitsmoment, das eine präzise Bahnzugregelung erschwert. Ferner ist der Zentrumsantrieb des Tambours auf den Wickelbetrieb mit geschlossenem Nip zwischen Tragtrommel und Tambour ausgelegt beziehungsweise optimiert. Deshalb ist der Zentrumsantrieb meist zu langsam, um den Bahnzug zu regeln. Ein ungleichmäßiger Bahnzug beim Tambourwechsel ist die Folge. Zusätzlich muss der Zentrumsantrieb beim Wickeln mit offenem Nip ein sehr hohes Drehmoment aufbringen. Deshalb müssen der Antriebsmotor, der Frequenzumrichter und die Mechanik des Tambours für diese starken Belastungen entsprechend dimensioniert werden.When winding a material web must be a certain dependent on the material web Web tension, which acts across the width of the web, are complied with. For this reason, it is important to train the web during the entire winding process to monitor and regulate. In a spool change must be a nip between a carrier drum and the spool during the winding process be opened. Thus are at a Tambourwechsel to the monitoring and Control of the web tension compared to the winding process with closed nip, in which the carrier drum presses against the spool, special requirements posed. When changing the reel with the nipple open, the air squeegee will roll (Auxiliary roller) pressed against the drum. The center drive of the spool, its torque with closed nip preferably according to a Curve is controlled, takes over with the nip open the regulation of the train. For this purpose, the web train is arranged above a front of the carrier drum Measuring roller, and the speed and / or torque of the center drive the spool changed according to the measured web tension. The speed of the Luftabquetschwalze is open during the winding process Nip adapted to the speed of the spool. In this from the state However, the technique known Tambourwechsel with open nip is the uniformity the train train problematic. The procedural movements, in particular Up and down movements, accelerations, delays and the like, of the spool during the reel change lead to changes of the train. In addition, the wound up drum has a very high mass moment of inertia, which makes a precise web tension control difficult. Furthermore, the Center drive of the spool to the winding operation with closed nip designed and optimized between the carrier drum and drum. Therefore The center drive is usually too slow to regulate the train. One uneven web tension when Tambourwechsel is the result. In addition, must the center drive when winding with open nip a very high torque muster. Therefore, the drive motor, the frequency converter and the Mechanics of the spool are dimensioned accordingly for these heavy loads become.

Die Erfindung hat deshalb die Aufgabe bei einem Tambourwechsel den Bahnzug trotz geöffnetem Nip möglichst gleichmäßig zu halten. Außerdem soll der Zentrumsantrieb des Tambours entlastet werden.The invention therefore has the task in a Tambourwechsel the train to keep it evenly even when the nip is open. In addition, the center drive of the spool are relieved.

Die Erfindung löst die gestellte Aufgabe durch eine Wickelmaschine der eingangs genannten Art, bei der erfindungsgemäß die Drehzahl und/oder das Drehmoment der Luftabquetschwalze abhängig von einem momentanen Bahnzug der Materialbahn regelbar ist. Folglich wird die Drehzahl und/oder das Drehmoment der Luftabquetschwalze erhöht, wenn der gemessene momentane Bahnzug zu gering ist. Im umgekehrten Fall wird die Drehzahl und/oder das Drehmoment der Luftabquetschwalze gesenkt, wenn der gemessene momentane Bahnzug zu hoch ist. Auf diese Weise kann der Bahnzug auch bei offenem Nip möglichst gleichmäßig gehalten werden. Es herrschen jetzt beim offenem Nip die gleichen Bedingungen wie beim gelschlossenen Nip, wenn die Tragtrommel, deren Drehzahl ebenfalls durch den gemessenen momentanen Bahnzug geregelt wird, gegen den Tambour drückt. Da die Luftabquetschwalze den Bahnzug der Materialbahn korrigiert, muss die Luftabquetschwalze ebenfalls einen Teil des erforderlichen Drehmomentes aufbringen, sodass der Zentrumsantrieb nicht mehr das gesamte Drehmoment aufbringen muss, und deshalb kleiner dimensioniert werden kann. Außerdem kann die Luftabquetschwalze auch zum Abbremsen des vollen Tambours benutzt werden. The invention solves the problem by a winding machine of the beginning mentioned type, in accordance with the invention, the speed and / or torque the Luftabquetschwalze depending on a current web tension of the web is controllable. Consequently, the rotational speed and / or the torque of the Luftabquetschwalze increased if the measured current web tension is too low. In the opposite case, the speed and / or the torque of the Luftabquetschwalze lowered if the measured current web tension is too high. In this way, the web train as evenly as possible with open nip being held. There are now the same conditions with the open nip as with the lapped nip, when the reel drum, its speed also is controlled by the measured instantaneous train, against the spool suppressed. Since the Luftabquetschwalze corrects the web tension of the web, must the Luftabquetschwalze also a part of the required torque apply, so that the center drive is no longer the entire torque and therefore can be dimensioned smaller. In addition, can The air squeegee can also be used to brake the full spool.

In einer besonderen Ausführungsform ist die Luftabquetschwalze mit einer Messeinrichtung zum Messen des Bahnzugs ausgerüstet. Dann kann der an der Luftabquetschwalze gemessene Bahnzug zur Korrektur der Drehzahl der Luftabquetschwalze verwendet werden. Eine Messung des Bahnzugs an der Luftabquetschwalze, an der auch der Bahnzug korrigiert werden soll, ermöglicht auch bei geöffnetem Nip eine sehr hohe Gleichmäßigkeit des Bahnzugs, wobei die Anforderungen an die Gleichmäßigkeit des Bahnzugs von der jeweils zu wickelnden Materialbahn abhängen. Weiterhin besteht ein Vorteil im Messen des Bahnzugs im freien Zug, das heißt, dass keine Walze zwischen der Messeinrichtung und der Luftabquetschwalze vorhanden ist.In a particular embodiment, the Luftabquetschwalze with a measuring device equipped for measuring the train. Then the squeegee at the Luftabquetschwalze measured web tension to correct the speed of the air squeegee be used. A measurement of the web tension at the air squeegee, on which also the train is to be corrected, also allows for open nip a very high uniformity of the train, the requirements to the uniformity of the train from each to be wound Suspend material web. Furthermore, there is an advantage in measuring the train in the open train, that is, no roller between the measuring device and the Air squeeze roller is present.

Wenn in Abhängigkeit von der zu wickelnden Materialbahn besonders hohe Anforderungen an einen konstanten Bahnzug bei geöffnetem Nip gestellt werden, kann auch die Tragtrommel mit einer Messeinrichtung zum Messen des Bahnzugs ausgerüstet sein, und die Drehzahl der Tragtrommel abhängig vom an der Tragtrommel gemessenen momentanen Bahnzug der Materialbahn geregelt werden. Diese Ausgestaltung ist vorzugsweise nur bei einer großen Umschlingung der Tragtrommel möglich.If particularly high demands, depending on the material web to be wound be placed on a constant web tension with the nip open, Also, the carrier drum with a measuring device for measuring the web tension be equipped, and the rotational speed of the carrier drum depending on the carrier drum measured current web tension of the web are regulated. This embodiment is preferably only in a large wrap the Carrying drum possible.

Wenn die zu wickelnde Materialbahn nur geringere Anforderungen an die Gleichmäßigkeit des Bahnzugs stellt, ist es in einer weniger aufwändigen und somit preisgünstigeren Ausführungsvariante auch möglich, dass nur die Tragtrommel mit einer Messeinrichtung zum Messen des Bahnzugs ausgerüstet ist. Der an der Tragtrommel gemessene Bahnzug beeinflusst dann die Drehzahl der Luftabquetschwalze, um den Bahnzug zu korrigieren.If the web to be wrapped only lower requirements for the uniformity of the train train, it is in a less elaborate and thus cheaper variant also possible that only the carrier drum with a measuring device is equipped for measuring the web train. The at the Tray drum measured web tension then affects the speed of the air squeegee, to correct the train.

Um das Kosten-Nutzen-Verhältnis in Abhängigkeit von der zu wickelnden Materialbahn optimal zu gestalten, kann es auch sinnvoll sein, dass nur eine vor der Tragtrommel angeordnete Leitwalze oder Breitstreckwalze mit der Messeinrichtung zum Messen des Bahnzugs ausgerüstet ist. Dann beeinflusst der an der Leitwalze oder Breitstreckwalze gemessene Bahnzug die Drehzahl und/oder das Drehmoment der Luftabquetschwalze, wodurch der Bahnzug korrigiert wird. To the cost-benefit ratio depending on the material web to be wound To make it optimal, it can also make sense that only one before the Carrier drum arranged guide roller or spreader roller with the measuring device is equipped for measuring the train. Then he influences at the Guide roll or spreader roll measured web tension the speed and / or the Torque of the air squeegee, which corrects the web tension.

Vorteilhafterweise ist die Luftabquetschwalze mit einem relativ großen Durchmesser versehen, um ein möglichst großes Drehmoment mit einem vorzugsweise relativ kleinen Walzenantrieb sicherzustellen.Advantageously, the Luftabquetschwalze with a relatively large diameter provided to the largest possible torque with a preferably relatively ensure small roller drive.

Zweckmäßigerweise können die Messeinrichtungen der Luftabquetschwalze und/oder der Tragtrommel und/oder der Leitwalze und/oder der Breitstreckwalze mit mindestens einer Kraftmessdose und/oder mit mindestens einem Piezoelement versehen sein. Die Piezoelemente können in der aus dem Stand der Technik bekannten Weise auf den betreffenden Walzen verteilt sein. Sie ermöglichen dann die Messung eines mittleren Bahnzugs oder die Messung eines Bahnzugprofils entlang der Materialbahnbreite.Conveniently, the measuring devices of the Luftabquetschwalze and / or the carrier drum and / or the guide roller and / or the spreader roller with at least one load cell and / or with at least one piezoelectric element be provided. The piezoelectric elements may be in the state of the art be known manner distributed to the respective rollers. They then enable the measurement of a central railway train or the measurement of a railway train profile along the web width.

Wenn der von der Luftabquetschwalze aufgebrachte Anteil am Bahnzug bei ca. 20 Prozent liegt, muss der Zentralantrieb nur noch 80 Prozent des Bahnzugs aufbringen, sodass der Zentralantrieb somit erheblich kleiner dimensioniert werden kann.If the proportion of web tension applied by the air squeegee roll is about 20 Percent, the central drive only needs to apply 80 percent of the train, so that the central drive thus be dimensioned considerably smaller can.

Die Luftabquetschwalze kann einteilig oder mehrteilig ausgebildet sein. Die mehrteilige Luftabquetschwalze kann zwischen einzelnen Teilwalzen mit Lagern versehen sein, an denen die Luftabquetschwalze abgestützt wird. Stützkräfte, die an den Lagern wirken, drücken dann die Luftabquetschwalze gleichmäßig über ihre Länge gegen den Tambour, um eine optimale Anpressung der Luftabquetschwalze gegen den Tambour sicherzustellen. Alternativ kann die einteilige Luftabquetschwalze zur optimalen Anpressung gegen den Tambour mit Stützwalzen versehen sein, die dann die Luftabquetschwalze zwischen ihren Enden unterstützen und gegen den Tambour pressen.The Luftabquetschwalze may be formed in one or more parts. The multipart Air squeegee roller can be provided with bearings between individual sub-rollers be on which the Luftabquetschwalze is supported. Support forces working on act on the bearings, then press the Luftabquetschwalze evenly over their Length against the spool, for optimum contact pressure of the air squeegee to ensure against the drumming. Alternatively, the one-piece Luftabquetschwalze for optimum contact pressure against the spool with back-up rollers be provided, which then support the Luftabquetschwalze between their ends and press against the tambour.

Ein besonders gutes Drehmoment und eine optimale Anpressung gegen den Tambour wird mit der einteiligen Luftabquetschwalze erzielt, wenn ihr Durchmesser zwischen 500 Millimetern und 900 Millimetern liegt. Die mehrteilige Luftabquetschwalze liefert für Durchmesser zwischen 340 Millimetern und 600 Millimetem ein zufriedenstellendes Drehmoment und eine zufriedenstellende Anpressung. A particularly good torque and optimum contact pressure against the Tambour is achieved with the one-piece air squeegee when its diameter between 500 millimeters and 900 millimeters. The multi-part Luftabquetschwalze delivers for diameters between 340 millimeters and 600 millimeters a satisfactory torque and a satisfactory contact pressure.

Um die Luftabquetschwalze bei geöffnetem Nip optimal gegen den Tambour drücken zu können, kann die Luftabquetschwalze mindestens eine Stützwalze aufweisen.To keep the air squeegee in an optimal position against the spool when the nip is open To press, the Luftabquetschwalze at least one support roller exhibit.

Außerdem betrifft die Erfindung ein Verfahren zum Regeln des Bahnzugs der Materialbahn, insbesondere der Faserstoffbahn, während des Wickelvorganges auf der Wickelmaschine, bei dem erfindungsgemäß die Luftabquetschwalze durch eine Veränderung ihrer Drehzahl und/oder ihres Drehmoments den Bahnzug korrigiert.In addition, the invention relates to a method for controlling the web of train Material web, in particular the fibrous web, during the winding process on the winding machine, according to the invention, the Luftabquetschwalze by a change in their speed and / or their torque corrects the web tension.

Ebenso kann auch die Tragtrommel durch eine Veränderung ihrer Drehzahl und/oder ihres Drehmoments den Bahnzug korrigieren.Likewise, the carrier drum by a change in their speed and / or its torque correct the web tension.

Nachfolgend wird ein Ausführungsbeispiel der erfindungsgemäßen Wickelmaschine anhand der beiliegenden Zeichnungen näher erläutert.Hereinafter, an embodiment of the winding machine according to the invention explained in more detail with reference to the accompanying drawings.

Im Einzelnen zeigen:

Fig. 1
eine Seitenansicht auf eine erste Ausführungsform einer Wickelmaschine;
Fig. 2
eine Seitenansicht auf eine zweite Ausführungsform einer Wickelmaschine;
Fig. 3
eine Seitenansicht auf eine dritte Ausführungsform einer Wickelmaschine;
Fig. 4
eine perspektivische Draufsicht auf eine mehrteilige Luftabquetschwalze; und
Fig. 5.
eine perspektivische Draufsicht auf eine einteilige mit Stützwalzen versehene Luftabquetschwalze.
In detail show:
Fig. 1
a side view of a first embodiment of a winding machine;
Fig. 2
a side view of a second embodiment of a winding machine;
Fig. 3
a side view of a third embodiment of a winding machine;
Fig. 4
a perspective top view of a multi-part Luftabquetschwalze; and
Fig. 5.
a top perspective view of a one-piece provided with support rollers Luftabquetschwalze.

Fig. 1 zeigt eine Wickelmaschine 10 mit einem Tambour 11, auf den eine Materialbahn 12 aufgewickelt wird. Während eines Tambourwechsels drückt eine Luftabquetschwalze 13 gegen den Tambour 11. An einer Leitwalze 14 ist eine Messeinrichtung 15 angebracht, die den Bahnzug der Materialbahn 12 an der Leitwalze 14 misst. Die Messeinrichtung 15 misst vorzugsweise bei geschlossenem Nip und sie mit einem Antrieb der Luftabquetschwalze 13 verbunden. Somit kann die Drehzahl und/oder das Drehmoment der Luftabquetschwalze 13 abhängig von dem an der Leitwalze 14 gemessenen Bahnzug korrigiert werden, wodurch auch der Bahnzug im Bereich der Luftabquetschwalze 13 korrigiert wird. Wenn der gemessene Bahnzug zu gering ist, wird die Drehzahl der Luftabquetschwalze 13 erhöht. Ist hingegen der gemessene Bahnzug zu hoch, dann wird die Drehzahl der Luftabquetschwalze 13 gesenkt. Somit kann die Drehzahl eines Antriebes 16 des Tambours 11 im Betrieb mit geöffnetem Nip, wenn die Luftabquetschwalze 13 am Tambour 11 anliegt, in Abhängigkeit vom Drehmoment des Antriebes 16 gesteuert werden, also ebenso, wie dies im Betrieb mit geschlossenem Nip zwischen einer Tragtrommel 17 und dem Tambour 11 möglich ist. Es findet also keine Zugübergabe statt.Fig. 1 shows a winding machine 10 with a spool 11, on which a web 12 is wound up. During a reel change one presses Luftabquetschwalze 13 against the spool 11. On a guide roller 14 is a Measuring device 15 attached to the web of web material web 12 at the Guide roll 14 measures. The measuring device 15 preferably measures when closed Nip and they are connected to a drive of the Luftabquetschwalze 13. Consequently may be the speed and / or torque of the Luftabquetschwalze 13 dependent be corrected by the measured on the guide roller 14 web tension, whereby Also, the web tension in the air squeegee 13 is corrected. If the measured web tension is too low, the speed of the air squeegee becomes 13 increased. If, however, the measured web tension is too high, then The speed of the Luftabquetschwalze 13 is lowered. Thus, the speed a drive 16 of the spool 11 in operation with the nip open when the Luftabquetschwalze 13 rests on the spool 11, depending on the torque the drive 16 are controlled, that is, as well as in operation with closed Nip between a carrier drum 17 and the spool 11 possible is. So there is no train transfer.

Fig. 2 zeigt eine Wickelmaschine 20, bei der die Materialbahn 12 auf den Tambour 11 aufgewickelt wird. An der Tragtrommel 17 ist eine Messeinrichtung 21 zur Messung des Bahnzugs der Materialbahn 12 angeordnet. Die Messeinrichtung 21 ist mit dem Antrieb der Luftabquetschwalze 13 verbunden. Somit wird die Drehzahl der Luftabquetschwalze 13 entsprechend des an der Tragtrommel 17 gemessenen Bahnzugs korrigiert, wodurch auch der Bahnzug der Materialbahn 12 im Bereich der Luftabquetschwalze 13 korrigiert wird. Auch bei der Wickelmaschine 20 wird die Drehzahl des Antriebes 16 bei geöffnetem Nip in Abhängigkeit vom Drehmoment des Antriebes 16 gesteuert.Fig. 2 shows a winding machine 20, wherein the web 12 on the spool 11 is wound up. On the carrier drum 17 is a measuring device 21 for measurement the web of material web 12 arranged. The measuring device 21 is connected to the drive of the Luftabquetschwalze 13. Thus, the speed the Luftabquetschwalze 13 according to the measured at the support drum 17 Correction corrected, whereby the web of material web 12 in Area of Luftabquetschwalze 13 is corrected. Also with the winding machine 20, the speed of the drive 16 with the nip open as a function of Torque of the drive 16 controlled.

Fig. 3 zeigt eine Wickelmaschine 30, die mit zwei Messeinrichtungen 31 und 32 versehen ist, die jeweils an der Luftabquetschwalze 13 und an der Tragtrommel 17 angeordnet sind. Somit wird durch die Messeinrichtungen 31 an der Luftabquetschwalze 13 der Bahnzug der Materialbahn 12 gemessenen, und bei einem von einem Sollwert abweichenden Bahnzug die Drehzahl der Luftabquetschwalze 13 entsprechend verändert. Durch die Messeinrichtung 32 wird außerdem an der Tragtrommel 17 der Bahnzug gemessen, und bei einem vom Sollwert abweichenden Bahnzug die Drehzahl der Tragtrommel 17 ebenfalls angepasst. Da bei der Wickelmaschine 30 der Bahnzug direkt am Messort korrigiert wird, liefert diese Anordnung optimale Ergebnisse bezüglich eines möglichst gleichmäßigen Bahnzugs. Durch die Messung des Bahnzugs an zwei verschiedenen Orten und durch die Korrektur direkt an den beiden Messorten, lässt sich die Gleichmäßigkeit des Bahnzugs zusätzlich optimieren. Abhängig von den durch die Materialbahn gestellten Anforderungen an einen gleichmäßigen Bahnzug kann die Wickelmaschine auch mit nur einer Messeinrichtung versehen sein, wobei die Drehzahlkorrektur direkt am Messort durchgeführt wird. Auch bei der Wickelmaschine 30 wird die Drehzahl des Antriebes 16 bei geöffnetem Nip abhängig vom Drehmoment des Antriebes 16 gesteuert.FIG. 3 shows a winding machine 30 having two measuring devices 31 and 32 is provided, each at the Luftabquetschwalze 13 and on the carrier drum 17th are arranged. Thus, by the measuring means 31 at the Luftabquetschwalze 13 of the web of material web 12 measured, and at a from a setpoint deviating web tension the speed of the Luftabquetschwalze 13 changed accordingly. By the measuring device 32 is also at the Cartridge 17 of the web tension measured, and at a deviating from the setpoint Web pull the speed of the carrier drum 17 also adjusted. Since at the Winding machine 30 of the train is corrected directly at the site, this delivers Arrangement optimum results with regard to a uniform as possible Bahnzugs. By measuring the train at two different places and through the correction directly at the two measurement sites, the uniformity of the Optimize railway train additionally. Depending on the material provided by the web Requirements for a uniform web tension, the winding machine be provided with only one measuring device, the speed correction is performed directly at the measuring location. Also in the winding machine 30 is the speed of the drive 16 with the nip open depends on the torque of Drive 16 controlled.

Aus Gründen eines optimalen Anpressdruckes kann eine Luftabquetschwalze 40 mehrere Teilwalzen 41 aufweisen. Zwischen den einzelnen Teilwalzen 41 sind dann Lager 42 angeordnet, an denen die Luftabquetschwalze 40 abgestützt wird. Stützkräfte F, die an den Lagern 42 wirken, drücken dann die Luftabquetschwalze 40 gleichmäßig über ihre Länge gegen einen hier nicht näher dargestellten Tambour.For reasons of optimum contact pressure, a Luftabquetschwalze 40th have several sub-rollers 41. Between the individual sub-rollers 41 are then arranged bearings 42 on which the Luftabquetschwalze 40 is supported. Supporting forces F acting on the bearings 42 then push the air squeeze roller 40 evenly over its length against a tambour not shown here.

Alternativ kann eine Luftabquetschwalze 50 auch einteilig ausgebildet sein, wobei die Luftabquetschwalze 50 zur optimalen Anpressung gegen einen hier nicht näher dargestellten Tambour mit Stützwalzen 51 versehen ist. Die Stützwalzen 51 können in allgemeinerer Form auch als beliebige Stützelemente ausgebildet sein.Alternatively, a Luftabquetschwalze 50 may also be integrally formed, wherein the Luftabquetschwalze 50 for optimal contact with one here not closer shown spool is provided with support rollers 51. The support rollers 51 may be formed in a more general form as any support elements.

Claims (14)

Wickelmaschine (10, 20, 30) zum Wickeln einer Materialbahn (12), insbesondere einer Faserstoffbahn, mit einer gegen einen Tambour (11) drückbaren Luftabquetschwalze (13), dadurch gekennzeichnet, dass die Drehzahl und/oder das Drehmoment der Luftabquetschwalze (13) abhängig von einem momentanen Bahnzug der Materialbahn (12) regelbar ist.Winding machine (10, 20, 30) for winding a material web (12), in particular a fibrous web, with an air squeegee (13) which can be pressed against a spool (11), characterized in that the rotational speed and / or the torque of the air squeegee (13) depending on a current web tension of the web (12) is adjustable. Wickelmaschine (30) nach Anspruch 1, dadurch gekennzeichnet, dass die Luftabquetschwalze (13) mit einer Messeinrichtung (31) zum Messen des Bahnzugs ausgerüstet ist.Winding machine (30) according to claim 1, characterized in that the Luftabquetschwalze (13) is equipped with a measuring device (31) for measuring the web tension. Wickelmaschine (30) nach Anspruch 2, dadurch gekennzeichnet, dass auch die Tragtrommel (17) mit einer Messeinrichtung (32) zum Messen des Bahnzugs bei vorzugsweise offenem Nip ausgerüstet ist und die Drehzahl und/oder das Drehmoment der Tragtrommel (17) abhängig vom an der Tragtrommel (17) gemessenen momentanen Bahnzug der Materialbahn (12) regelbar ist.Winding machine (30) according to claim 2, characterized in that the carrier drum (17) is equipped with a measuring device (32) for measuring the web tension at preferably open nip and the speed and / or torque of the carrier drum (17) depending on the carrier drum (17) measured instantaneous web of the web material (12) is adjustable. Wickelmaschine (20) nach Anspruch 1, dadurch gekennzeichnet, dass nur die Tragtrommel (17) mit einer Messeinrichtung (21) zum Messen des Bahnzugs ausgerüstet ist.Winding machine (20) according to claim 1, characterized in that only the carrier drum (17) is equipped with a measuring device (21) for measuring the web tension. Wickelmaschine (10) nach Anspruch 1, dadurch gekennzeichnet, dass nur eine vor der Tragtrommel (17) angeordnete Leitwalze (14) oder Breitstreckwalze mit einer Messeinrichtung (15) zum Messen des Bahnzugs ausgerüstet ist.Winding machine (10) according to claim 1, characterized in that only one in front of the carrier drum (17) arranged guide roller (14) or spreader roller is equipped with a measuring device (15) for measuring the web train. Wickelmaschine (10, 20, 30) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Luftabquetschwalze (13) einen relativ großen Durchmesser aufweist.Winding machine (10, 20, 30) according to one of claims 1 to 5, characterized in that the Luftabquetschwalze (13) has a relatively large diameter. Wickelmaschine (10, 20, 30) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Luftabquetschwalze (13) und/oder die Tragtrommel (17) und/oder eine Leitwalze (14) und/oder eine Breitstreckwalze mindestens eine Kraftmessdose und/oder mindestens ein Piezoelement aufweist.Winding machine (10, 20, 30) according to one of claims 1 to 6, characterized in that the Luftabquetschwalze (13) and / or the carrier drum (17) and / or a guide roller (14) and / or a spreader roll at least one load cell and / or has at least one piezoelectric element. Wickelmaschine (10, 20, 30) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass ein von der Luftabquetschwalze (13) aufgebrachter Anteil am Bahnzug bei ca. 20 Prozent liegt.Winding machine (10, 20, 30) according to one of claims 1 to 7, characterized in that one of the Luftabquetschwalze (13) applied proportion of the web tension is about 20 percent. Wickelmaschine (10, 20, 30) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Luftabquetschwalze (13) einteilig oder mehrteilig ist.Winding machine (10, 20, 30) according to one of claims 1 to 8, characterized in that the Luftabquetschwalze (13) is in one or more parts. Wickelmaschine (10, 20, 30) nach Anspruch 9, dadurch gekennzeichnet, dass der Durchmesser der einteiligen Luftabquetschwalze (13) zwischen 500 Millimetern und 900 Millimetern liegt.Winding machine (10, 20, 30) according to claim 9, characterized in that the diameter of the one-piece Luftabquetschwalze (13) is between 500 millimeters and 900 millimeters. Wickelmaschine (10, 20, 30) nach Anspruch 9, dadurch gekennzeichnet, dass der Durchmesser der mehrteiligen Luftabquetschwalze (13) zwischen 340 Millimetern und 600 Millimetern liegt.Winding machine (10, 20, 30) according to claim 9, characterized in that the diameter of the multi-part Luftabquetschwalze (13) between 340 millimeters and 600 millimeters. Wickelmaschine (10, 20, 30) nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Luftabquetschwalze (13) mindestens eine Stützwalze aufweist. Winding machine (10, 20, 30) according to one of claims 1 to 11, characterized in that the Luftabquetschwalze (13) has at least one support roller. Verfahren zum Regeln des Bahnzugs der Materialbahn (12), insbesondere der Faserstoffbahn, während des Wickelvorganges auf der Wickelmaschine (10, 20, 30), dadurch gekennzeichnet, dass die Luftabquetschwalze (13) den Bahnzug durch eine Veränderung ihrer Drehzahl und/oder ihres Drehmoments korrigiert.Method for controlling the web of material web (12), in particular the fibrous web, during the winding process on the winding machine (10, 20, 30), characterized in that the Luftabquetschwalze (13) the web tension by changing their speed and / or their torque corrected. Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass auch die Tragtrommel (17) den Bahnzug durch eine Veränderung ihrer Drehzahl und/oder ihres Drehmoments korrigiert.A method according to claim 13, characterized in that the carrier drum (17) corrects the web tension by changing their speed and / or their torque.
EP04103919A 2003-09-12 2004-08-16 Winding machine for winding a material web Not-in-force EP1514816B1 (en)

Applications Claiming Priority (2)

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DE10342020 2003-09-12
DE10342020A DE10342020A1 (en) 2003-09-12 2003-09-12 Winding machine for winding a material web

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DE10342020A1 (en) 2005-04-07
ATE330889T1 (en) 2006-07-15
DE502004000810D1 (en) 2006-08-03

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