EP1975103A2 - Method and device for determining the web tension in a web of printed material - Google Patents
Method and device for determining the web tension in a web of printed material Download PDFInfo
- Publication number
- EP1975103A2 EP1975103A2 EP08005103A EP08005103A EP1975103A2 EP 1975103 A2 EP1975103 A2 EP 1975103A2 EP 08005103 A EP08005103 A EP 08005103A EP 08005103 A EP08005103 A EP 08005103A EP 1975103 A2 EP1975103 A2 EP 1975103A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- prevailing
- web tension
- tension
- printing material
- 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.)
- Withdrawn
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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
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/044—Sensing 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
- 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
- B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
-
- 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 invention relates to a method for determining the web tension or the web tension in a printing substrate according to the preamble of claim 1. Furthermore, the invention relates to a device for determining the web tension or the web tension in a printing material according to the preamble of claim. 2
- a printing material web to be printed is usually taken from a stocking roll held ready in the area of a roll changer, transported for printing by printing units and fed to a folder for further processing.
- the transport of the printing material web through the web-fed rotary printing machine serve so-called draw rolls as well as so-called web guide rolls.
- Pull rollers are driven by the same associated drives.
- Web guiding rollers are not assigned any drives. Rather, web guide rollers are dragged by friction of the printing material web.
- the web train is a force, wherein a web tension is then determined from the web train when it is divided by the width of the web to be recovered.
- each position of the transport path of the printing material, for which the web tension or the web must be determined each associated with a device which provides a signal which a conclusion on the prevailing at the respective position web tension or the At the respective position prevailing train allows. If it is therefore necessary, as seen in the transport direction of the printing material at a position downstream of a tension roller and at a position upstream of a tension roller to determine the web tension or the web tension, so each of these two positions is associated with such a device and thus measuring point. This is complicated and expensive.
- the present invention is based on the problem to provide a novel method and a novel device for determining the web tension or of the web tension in a printing material web.
- the web tension prevailing at a second position along the transport path of the printing material web or the web tension prevailing at the second position are calculated, namely from the web tension prevailing at the first position or from the web tension prevailing at the first position and from forces acting on the first position at least one driven roller and / or at least one towed roller, which is arranged along the transport path of the printing material between the first position and the second position, enter in the printing material web.
- the present invention it is proposed for the first time to mathematically determine the web tension prevailing at a position along a transport path of the printing material web or the web train prevailing at this position, based on the web tension or the web tension prevailing at another position along the transport path the other position prevailing Web tension and based on forces that enter at least one driven roller and / or at least one towed roller, which is arranged along the transport path between these two positions in the printing material web.
- Fig. 1 schematically shows a section of a transport path of a printing substrate 10 by a web-fed rotary printing press, wherein in the section of the transport path shown a driven by a drive 11 roller 12, which is also referred to as a tension roller is positioned.
- a tension roller which is also referred to as a tension roller is positioned.
- the tension roller 12 can have a promoting or braking effect and register corresponding forces in the printing material web 10.
- towed rollers 13 are further arranged, wherein the towed rollers 13 are so-called web guide rollers.
- the web guide rollers 13 are driven by friction entrained by the printing substrate 10 and also contribute forces in the printing material 10 a.
- a device 16 is arranged at each of these two positions 14 and 15, each of which supplies a signal which makes it possible to draw conclusions about the web tension prevailing at the respective position 14, 15 or the web tension prevailing at the respective position 14, 15.
- These devices 16 are in particular measuring rollers.
- Fig. 2 shows a section of a transport path of a printing material web 20 by a web-fed rotary printing press, wherein in the region of this section again a driven by a drive 21 roller 22 is arranged.
- the roller 22 is therefore again a draw roller.
- rollers 23 are arranged along the transport path of the printing material web, which are dragged by friction of the printing material web 10.
- the rollers 23 are again web guide rollers.
- Fig. 2 shall be determined for two positions 24, 25 along the transport path of the printing material web through the web-fed rotary printing press the respectively prevailing in the substrate web tension or the prevailing web tension.
- a device 26 which provides a signal which allows a conclusion about the prevailing at the first position 24 web tension or prevailing at this position 24 web tension.
- the device 26 is preferably a measuring roller.
- the device 26 may also be a dancer roller or a dancer roller.
- the web tension prevailing at the second position, namely at the position 25, of the transport path or the web tension prevailing at the position 25 is calculated according to the invention, namely from the web tension prevailing at the first position 24 or from the web tension prevailing at the position 24 and from the forces which enter the rollers 22, 23 in the printing material, which are arranged along the transport path of the printing material between the two positions 24 and 25.
- the position for which the web tension or the web tension is determined by calculation, seen in the transport direction of the printing material downstream of the position is arranged, for which the web tension or the web train by means of a device determined by measurement becomes.
- more than two rollers are positioned between the two positions 24, 25.
- the web tension or the web tension is calculated for the position 25, taking into account the measured in the position 24 by means of the device 26 web tension or the train and on the basis of the forces which between the two Positions 24, 25 arranged rollers 22, 23 enter into the printing substrate 20.
- the force introduced by a driven roller or tension roller 22 into the printing material web 20 can be detected via the power consumption of the drive 21 of the draw roller 22.
- the power consumption of the drive 21 is proportional to the torque at the tension roller 22 and thus proportional to the introduced from the tension roller 22 in the printing material 20 force.
- the characteristics of the drive 21 the drive ratio between the drive 21 and the tension roller 22 and the diameter of the tension roller 22 can therefore be derived from the tension roller 22 introduced into the printing material 20 force.
- the torque intrinsic demand of the draw roller 22, which results from bearing friction and possibly coupling losses, is taken into account. This torque demand of the tension roller can be determined either mathematically or metrologically in advance.
- the forces introduced by the towed web guide rollers 23 into the printing material web 20 are, in particular, forces as a result of the torque intrinsic requirement of the web guide rollers, which results in particular from the bearing friction of the web guide rollers. These can also be determined in advance by calculation or metrology.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Ermittlung der Bahnspannung bzw. des Bahnzugs in einer Bedruckstoffbahn nach dem Oberbegriff des Anspruchs 1. Des weiteren betrifft die Erfindung eine Vorrichtung zur Ermittlung der Bahnspannung bzw. des Bahnzugs in einer Bedruckstoffbahn nach dem Oberbegriff des Anspruchs 2.The invention relates to a method for determining the web tension or the web tension in a printing substrate according to the preamble of claim 1. Furthermore, the invention relates to a device for determining the web tension or the web tension in a printing material according to the preamble of claim. 2
In Rollenrotationsdruckmaschinen wird eine zu bedruckende Bedruckstoffbahn üblicherweise von einer im Bereich eines Rollenwechslers bereitgehaltenen Bedruckstoffrolle abgezogen, zum Bedrucken durch Druckwerke transportiert und nach dem Bedrucken zur Weiterverarbeitung einem Falzapparat zugeführt. Dem Transport der Bedruckstoffbahn durch die Rollenrotationsdruckmaschine dienen dabei sogenannte Zugwalzen sowie sogenannte Bahnleitwalzen. Zugwalzen werden von denselben zugeordneten Antrieben angetrieben. Bahnleitwalzen sind keine Antriebe zugeordnet. Vielmehr werden Bahnleitwalzen über Reibung von der Bedruckstoffbahn mitgeschleppt.In web-fed rotary printing presses, a printing material web to be printed is usually taken from a stocking roll held ready in the area of a roll changer, transported for printing by printing units and fed to a folder for further processing. The transport of the printing material web through the web-fed rotary printing machine serve so-called draw rolls as well as so-called web guide rolls. Pull rollers are driven by the same associated drives. Web guiding rollers are not assigned any drives. Rather, web guide rollers are dragged by friction of the printing material web.
Für den ordnungsgemäßen Betrieb einer Rollenrotationsdruckmaschine ist es erforderlich, an definierten Positionen entlang des Transportwegs der Bedruckstoffbahn durch die Rollenrotationsdruckmaschine die in der Bedruckstoffbahn herrschende Bahnspannung bzw. den in der Bedruckstoffbahn herrschenden Bahnzug zu kennen. Bei dem Bahnzug handelt es sich um eine Kraft, wobei aus dem Bahnzug dann, wenn derselbe durch die Breite der einzuziehenden Bedruckstoffbahn geteilt wird, eine Bahnspannung ermittelt wird.For the proper operation of a web-fed rotary printing press, it is necessary to know the web tension prevailing in the printing material web or the web tension prevailing in the printing web at defined positions along the transport path of the printing material web through the web-fed rotary printing press. The web train is a force, wherein a web tension is then determined from the web train when it is divided by the width of the web to be recovered.
Bei aus der Praxis bekannten Rollenrotationsdruckmaschinen ist jeder Position des Transportwegs der Bedruckstoffbahn, für den die Bahnspannung bzw. der Bahnzug ermittelt werden muss, jeweils eine Einrichtung zugeordnet, die ein Signal liefert, welches einen Rückschluss auf die an der jeweiligen Position herrschenden Bahnspannung bzw. den an der jeweiligen Position herrschenden Bahnzug ermöglicht. Ist es demnach erforderlich, in Transportrichtung des Bedruckstoffs gesehen an einer Position stromabwärts einer Zugwalze sowie an einer Position stromaufwärts einer Zugwalze die Bahnspannung bzw. den Bahnzug zu ermitteln, so ist jeder dieser beiden Positionen eine derartige Einrichtung und damit Messstelle zugeordnet. Dies ist aufwendig und teuer.In known from practice web-fed rotary printing presses each position of the transport path of the printing material, for which the web tension or the web must be determined, each associated with a device which provides a signal which a conclusion on the prevailing at the respective position web tension or the At the respective position prevailing train allows. If it is therefore necessary, as seen in the transport direction of the printing material at a position downstream of a tension roller and at a position upstream of a tension roller to determine the web tension or the web tension, so each of these two positions is associated with such a device and thus measuring point. This is complicated and expensive.
Hiervon ausgehend liegt der vorliegenden Erfindung das Problem zugrunde, ein neuartiges Verfahren und eine neuartige Vorrichtung zur Ermittlung der Bahnspannung bzw. des Bahnzugs in einer Bedruckstoffbahn zu schaffen.On this basis, the present invention is based on the problem to provide a novel method and a novel device for determining the web tension or of the web tension in a printing material web.
Dieses Problem wird durch ein Verfahren zur Ermittlung der Bahnspannung bzw. des Bahnzugs in einer Bedruckstoffbahn gemäß Anspruch 1 gelöst. Erfindungsgemäß wird die an einer zweiten Position entlang des Transportwegs der Bedruckstoffbahn herrschende Bahnspannung bzw. der an der zweiten Position herrschende Bahnzug rechnerisch ermittelt, nämlich aus der an der ersten Position herrschenden Bahnspannung bzw. aus dem an der ersten Position herrschenden Bahnzug sowie aus Kräften, die mindestens eine angetriebene Walze und/oder mindestens eine geschleppte Walze, die entlang des Transportwegs der Bedruckstoffbahn zwischen der ersten Position und der zweiten Position angeordnet ist, in die Bedruckstoffbahn eintragen.This problem is solved by a method for determining the web tension or the web tension in a printing material web according to claim 1. According to the invention, the web tension prevailing at a second position along the transport path of the printing material web or the web tension prevailing at the second position are calculated, namely from the web tension prevailing at the first position or from the web tension prevailing at the first position and from forces acting on the first position at least one driven roller and / or at least one towed roller, which is arranged along the transport path of the printing material between the first position and the second position, enter in the printing material web.
Mit der hier vorliegenden Erfindung wird erstmals vorgeschlagen, die an einer Position entlang eines Transportwegs der Bedruckstoffbahn herrschende Bahnspannung bzw. den an dieser Position herrschenden Bahnzug rechnerisch zu ermitteln, und zwar auf Grundlage der an einer anderen Position entlang des Transportwegs herrschenden Bahnspannung bzw. des an der anderen Position herrschenden Bahnzugs sowie auf Grundlage von Kräften, die mindestens eine angetriebene Walze und/oder mindestens eine geschleppte Walze, die entlang des Transportwegs zwischen diesen beiden Positionen angeordnet ist, in die Bedruckstoffbahn eintragen. Hierdurch ist es möglich, den hardwareseitigen Aufwand zu reduzieren und die Bahnspannung und damit den Bahnzug an Positionen entlang des Transportwegs der Bedruckstoffbahn durch eine Rollenrotationsdruckmaschine mit geringerem Aufwand und damit kostengünstiger zu ermitteln.With the present invention, it is proposed for the first time to mathematically determine the web tension prevailing at a position along a transport path of the printing material web or the web train prevailing at this position, based on the web tension or the web tension prevailing at another position along the transport path the other position prevailing Web tension and based on forces that enter at least one driven roller and / or at least one towed roller, which is arranged along the transport path between these two positions in the printing material web. This makes it possible to reduce the hardware-related effort and to determine the web tension and thus the web tension at positions along the transport path of the printing substrate by a web-fed rotary printing press with less effort and thus more cost-effective.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ausführungsbeispiele der Erfindung werden, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt:
- Fig. 1:
- eine aus dem Stand der Technik bekannte Anordnung zur Ermittlung der Bahnspannung bzw. des Bahnzugs in einer Bedruckstoffbahn;
- Fig. 2:
- eine erfindungsgemäße Anordnung zur Ermittlung der Bahnspannung bzw. des Bahnzugs in einer Bedruckstoffbahn.
- Fig. 1:
- an arrangement known from the prior art for determining the web tension or the web tension in a printing material web;
- Fig. 2:
- an inventive arrangement for determining the web tension or the web tension in a printing substrate.
Bevor nachfolgend unter Bezugnahme auf
Gemäß
Ist es nun von Bedeutung, an einer ersten Position 14 entlang des Transportwegs der Bedruckstoffbahn 10, die in Transportrichtung der Bedruckstoffbahn gesehen stromabwärts der Zugwalze 12 angeordnet ist, sowie an einer zweiten Position 15 entlang des Transportwegs der Bedruckstoffbahn 10, die in Transportrichtung der Bedruckstoffbahn 10 gesehen stromabwärts der Zugwalze 12 angeordnet ist, jeweils die in der Bedruckstoffbahn 10 herrschende Bahnspannung bzw. den in der Bedruckstoffbahn 10 herrschenden Bahnzug zu ermitteln, so ist gemäß
Zusätzlich zu der Zugwalze 22 sind entlang des Transportwegs der Bedruckstoffbahn 20 geschleppte Walzen 23 angeordnet, die über Reibung von der Bedruckstoffbahn 10 mitgeschleppt werden. Bei den Walzen 23 handelt es sich wiederum um Bahnleitwalzen.In addition to the
Auch in
Hierzu ist gemäß
Die an der zweiten Position, nämlich an der Position 25, des Transportwegs herrschende Bahnspannung bzw. der an der Position 25 herrschende Bahnzug wird erfindungsgemäß rechnerisch ermittelt, nämlich aus der an der ersten Position 24 herrschenden Bahnspannung bzw. aus dem an der Position 24 herrschenden Bahnzug sowie aus den Kräften, welche die Walzen 22, 23 in die Bedruckstoffbahn eintragen, die entlang des Transportwegs der Bedruckstoffbahn zwischen den beiden Positionen 24 und 25 angeordnet sind.The web tension prevailing at the second position, namely at the
Gemäß
Im gezeigten Ausführungsbeispiel der
Wie bereits ausgeführt, wird für die Position 25 die Bahnspannung bzw. der Bahnzug rechnerisch ermittelt, und zwar unter Berücksichtigung der in der Position 24 mit Hilfe der Einrichtung 26 messtechnisch ermittelten Bahnspannung bzw. des Bahnzugs sowie auf Basis der Kräfte, welche die zwischen den beiden Positionen 24, 25 angeordneten Walzen 22, 23 in die Bedruckstoffbahn 20 eintragen.As already stated, the web tension or the web tension is calculated for the
Die von einer angetriebenen Walze bzw. Zugwalze 22 in die Bedruckstoffbahn 20 eingebrachte Kraft kann über die Stromaufnahme des Antriebs 21 der Zugwalze 22 erfasst werden. So ist die Stromaufnahme des Antriebs 21 proportional zum Drehmoment an der Zugwalze 22 und damit proportional zu dem von der Zugwalze 22 in die Bedruckstoffbahn 20 eingebrachten Kraft. Aus der Stromaufnahme des Antriebs 21, den Kenndaten des Antriebs 21, der Antriebsübersetzung zwischen dem Antrieb 21 und der Zugwalze 22 sowie dem Durchmesser der Zugwalze 22 kann demnach die von der Zugwalze 22 in die Bedruckstoffbahn 20 eingebrachte Kraft abgeleitet werden. Dabei wird der Drehmomenteigenbedarf der Zugwalze 22, der sich durch Lagerreibungen und gegebenenfalls Kupplungsverluste ergibt, berücksichtigt. Dieser Drehmomenteigenbedarf der Zugwalze kann entweder rechnerisch oder messtechnisch vorab ermittelt werden.The force introduced by a driven roller or
Bei den durch die geschleppten Bahnleitwalzen 23 in die Bedruckstoffbahn 20 eingebrachten Kräften handelt es sich insbesondere um Kräfte in Folge des Drehmomenteigenbedarfs der Bahnleitwalzen, der sich insbesondere aus der Lagerreibung der Bahnleitwalzen ergibt. Auch diese können vorab rechnerisch oder messtechnisch ermittelt werden.The forces introduced by the towed
Um die Genauigkeit bei der erfindungsgemäßen Ermittlung der Bahnspannung bzw. des Bahnzugs zu erhöhen, können zusätzlich Massenträgheitsmomente der Walzen 22, 23 berücksichtigt werden. Diese Massenträgheitsmomente spielen dann eine Rolle, wenn eine Zugwalze 12 abgebremst bzw. beschleunigt wird. Bei einem stationären Betrieb mit gleichförmig angetriebener Zugwalze 22 spielen Massenträgheitsmomente hingegen eine untergeordnete Rolle.In order to increase the accuracy in the inventive determination of the web tension or the web tension, in addition mass moments of inertia of the
Es liegt demnach im Sinne der hier vorliegenden Erfindung, Messstellen zur messtechnischen und damit hardwareseitigen Erfassung der Bahnspannung bzw. des Bahnzugs an definierten Positionen entlang des Transportwegs einer Bedruckstoffbahn durch eine Rollenrotationsdruckmaschine einzusparen und für diese Positionen, für welche keine Messstellen vorliegen, die Bahnspannung bzw. den Bahnzug unter Berücksichtigung von Messergebnissen anderer Positionen rechnerisch zu ermitteln.It is therefore within the meaning of the present invention to save measuring points for metrological and thus hardware-side detection of the web tension or the web tension at defined positions along the transport path of a printing substrate by a web-fed rotary printing press and for these positions, for which there are no measuring points, the web tension or to determine the course of the course by taking into account measurement results of other positions.
- 1010
- Bedruckstoffbahnprinting material
- 1111
- Antriebdrive
- 1212
- Walze/ZugwalzeRoll / tension roller
- 1313
- Walze/BahnleitwalzeRoll / web guide roller
- 1414
- Positionposition
- 1515
- Positionposition
- 1616
- Einrichtung/MesswalzeSetup / measuring roll
- 2020
- Bedruckstoffbahnprinting material
- 2121
- Antriebdrive
- 2222
- Walze/ZugwalzeRoll / tension roller
- 2323
- Walze/BahnleitwalzeRoll / web guide roller
- 2424
- Positionposition
- 2525
- Positionposition
- 2626
- Einrichtung/MesswalzeSetup / measuring roll
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007015785A DE102007015785A1 (en) | 2007-03-30 | 2007-03-30 | Method and device for determining the web tension or the web tension in a printing material web |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1975103A2 true EP1975103A2 (en) | 2008-10-01 |
EP1975103A3 EP1975103A3 (en) | 2009-10-14 |
Family
ID=39586242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08005103A Withdrawn EP1975103A3 (en) | 2007-03-30 | 2008-03-19 | Method and device for determining the web tension in a web of printed material |
Country Status (3)
Country | Link |
---|---|
US (1) | US7647845B2 (en) |
EP (1) | EP1975103A3 (en) |
DE (1) | DE102007015785A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3416010A1 (en) * | 2017-06-12 | 2018-12-19 | Siemens Aktiengesellschaft | Method and device for determining the tension in a web, computer program product, industrial installation and production machine |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009028597A1 (en) | 2009-08-17 | 2011-02-24 | Manroland Ag | Method for controlling tension of paper web in rotary printing machine, involves influencing drawing roller and roller groups by control, such that detected actual-web tension values correspond to reference-web tension values |
DE102010050821A1 (en) | 2010-11-09 | 2012-05-10 | Robert Bosch Gmbh | Method for regulating web tension in a web tension section for processing machine, involves determining actual-web tension in one web tension section, on basis of determined web tension of web tension section |
US9816906B2 (en) | 2014-04-25 | 2017-11-14 | Honeywell International Inc. | Apparatus and method for stretch measurements of tissue webs |
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EP1505025A2 (en) * | 2003-08-06 | 2005-02-09 | MAN Roland Druckmaschinen AG | Method and device for controlling the web tension forces and the cutting register of a rotary printer |
US20050137738A1 (en) * | 2003-12-22 | 2005-06-23 | 3M Innovative Properties Company | Real-time determination of web tension and control using position sensors |
EP1795470A1 (en) * | 2005-12-09 | 2007-06-13 | Bosch Rexroth AG | Method for determining the web tension |
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DE10014535A1 (en) * | 2000-03-23 | 2001-09-27 | Roland Man Druckmasch | Method for operating a web-fed rotary printing press |
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2007
- 2007-03-30 DE DE102007015785A patent/DE102007015785A1/en not_active Withdrawn
-
2008
- 2008-03-19 EP EP08005103A patent/EP1975103A3/en not_active Withdrawn
- 2008-03-28 US US12/058,372 patent/US7647845B2/en not_active Expired - Fee Related
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EP1505025A2 (en) * | 2003-08-06 | 2005-02-09 | MAN Roland Druckmaschinen AG | Method and device for controlling the web tension forces and the cutting register of a rotary printer |
US20050137738A1 (en) * | 2003-12-22 | 2005-06-23 | 3M Innovative Properties Company | Real-time determination of web tension and control using position sensors |
EP1795470A1 (en) * | 2005-12-09 | 2007-06-13 | Bosch Rexroth AG | Method for determining the web tension |
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---|---|---|---|---|
EP3416010A1 (en) * | 2017-06-12 | 2018-12-19 | Siemens Aktiengesellschaft | Method and device for determining the tension in a web, computer program product, industrial installation and production machine |
Also Published As
Publication number | Publication date |
---|---|
US7647845B2 (en) | 2010-01-19 |
DE102007015785A1 (en) | 2008-10-02 |
US20080236299A1 (en) | 2008-10-02 |
EP1975103A3 (en) | 2009-10-14 |
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