WO2010094600A1 - Dispositif et procédé de guidage d'une bande de papier ou de carton - Google Patents

Dispositif et procédé de guidage d'une bande de papier ou de carton Download PDF

Info

Publication number
WO2010094600A1
WO2010094600A1 PCT/EP2010/051613 EP2010051613W WO2010094600A1 WO 2010094600 A1 WO2010094600 A1 WO 2010094600A1 EP 2010051613 W EP2010051613 W EP 2010051613W WO 2010094600 A1 WO2010094600 A1 WO 2010094600A1
Authority
WO
WIPO (PCT)
Prior art keywords
web tension
web
tension profile
roller
profile
Prior art date
Application number
PCT/EP2010/051613
Other languages
German (de)
English (en)
Inventor
Ewald Wetschenbacher
Jörg Maurer
Original Assignee
Voith Patent Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent Gmbh filed Critical Voith Patent Gmbh
Priority to EP10703645A priority Critical patent/EP2398725A1/fr
Publication of WO2010094600A1 publication Critical patent/WO2010094600A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by 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
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • B65H2515/314—Tension profile, i.e. distribution of tension, e.g. across the material feeding direction or along diameter of web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/20—Sensing or detecting means using electric elements
    • B65H2553/26—Piezoelectric sensors

Definitions

  • the invention relates to a device for guiding a web of paper or cardboard with a measuring device for determining a web tension profile of the web. Furthermore, the invention relates to a method for guiding a web of paper or cardboard, wherein a web tension profile is measured transversely to the machine direction.
  • a web of paper or cardboard is usually wound on the end of a paper or board machine in a winding machine.
  • the web is passed over a carrier drum and wound up on a spool.
  • the web tension of the web has a great influence on the winding result, ie a tension in the longitudinal direction.
  • the train determines u.a. the hardness of the wound roll.
  • a spreader roll In front of a carrier drum is usually arranged a spreader roll, which allows an extension of the web across the machine width.
  • a spreader roller is known for example from the document DE 103 59 113 A1.
  • a method for measuring a web tension is known, for example, from document EP 1 514 817 A1, wherein the web tension is measured on a winding roller, a carrier drum or a spreader roller.
  • a measuring device For example, piezoelectric elements can be used.
  • the web tension can be measured along the web width, So a web tension profile along the material web width can be determined.
  • an average value for the web tension is calculated therefrom.
  • the speed and / or the torque of the carrier drum are changed.
  • the level of the train is set.
  • IQ-Tension Another method for measuring a web tension profile is known under the name IQ-Tension. This measuring method is based on measuring an air film between the moving web and a curved surface. The strength of the air film is a measure of the web tension.
  • the invention is therefore based on the object to improve the web run.
  • this object is achieved in a device of the type mentioned above in that it has a control device for adjusting the web tension profile.
  • the train is now individually controlled several times along the width of the web. This now achieves a uniform web tension profile, which on the one hand improves the web run and on the other hand leads to a better winding result. It is particularly preferred that with the control device a flat web tension profile is adjustable. Often the train at the edges of a train differs from a train in the middle of the track. This can lead to wrinkling during winding. This is prevented by setting a flat web tension profile. Overall, this results in an improved winding result.
  • control device is designed as a control device.
  • the web tension profile can be evened out very well.
  • a feedback of a measurement signal can be well balanced disturbances.
  • the reliability and accuracy in setting the web tension profile is thereby improved.
  • the measuring device has at least one measuring roller and the control device has at least one web tension profile setting roller.
  • the measuring roller is used to detect the web tension profile.
  • a web tension profile adjustment roller provides an easy way to influence the web tension profile.
  • a deflection and / or an angular position of the web tension profile setting roller are variable.
  • Bend adjustment rollers are known per se. It is also known that the angular position of a roller can be adjusted. It is therefore resorted to mature solutions, whereby a reliable operation of the web tension profile setting is to ensure. At the same time the manufacturing costs can be kept low.
  • the web tension profile setting roller is preferably designed as a spreader roller.
  • a spreader roller is often present anyway to a
  • the measuring roller is designed as a guide roller having a plurality of sensors, in particular piezoelectric elements.
  • Guide rollers are usually required to guide a web.
  • the formation of a measuring roller as a guide roller therefore does not increase the number of rollers of a paper or board machine.
  • sensors e.g. Strain gauges are used.
  • piezoelectric elements as they allow a high resolution.
  • the device is arranged in front of a winding machine.
  • Web tension profile affects the winding result relatively strong. Now, if the device is arranged in front of a winding machine, it can be ensured that the web has the desired and set Bahnzugprofil upon reaching the winding machine. So a uniform winding result is obtained.
  • the object is achieved by a method of the type mentioned in that a flat web tension profile is set.
  • a flat web tension profile causes the web to run in a straight line over guide rolls and the like.
  • a good web tension profile makes it a good one Achieved winding result.
  • the improved web travel also reduces the number of breaks, which increases the productivity of a plant.
  • the web tension profile is regulated.
  • the control allows the influence of disturbance variables to be compensated relatively quickly.
  • the quality of the railway can be further increased. In particular, the winding result is improved.
  • the web tension profile is adjusted with a web tension profile setting roller, in particular a spreader roll.
  • a web tension profile setting roller in particular a spreader roll.
  • the adjustment of the web tension profile by means of a roller can be done relatively reliably.
  • a spreader roller usually already exists.
  • a deflection and / or an angular position of the web tension profile setting roller are changed.
  • the web tension profile can be effectively influenced by the deflection and / or angular position.
  • the web tension profile is measured with at least one measuring roller having a plurality of sensors, in particular piezoelectric elements.
  • a measuring roller which has several sensors, the web tension profile can be determined with sufficient accuracy.
  • the susceptibility of such a roller is relatively low.
  • the sensors can be designed, for example, as strain gauges.
  • the use of piezo elements has the advantage that they work very reliably and with a high resolution. At the same time, piezoelectric elements require relatively little energy.
  • the web tension profile is measured with a multi-part measuring roller. In this case, force sensors can be arranged for example at the bearing points of the multi-part measuring roller.
  • the web tension profile can only be determined in a relatively coarse resolution, a multi-part measuring roller is relatively inexpensive.
  • the web tension profile is adjusted in front of a winding machine.
  • the web tension profile has a relatively large influence on the winding quality. If now the web tension profile is set in front of the winding machine, it can be assumed that the set, preferably flat web tension profile is still present in the web even when the winding machine is reached. An influence of external influences, which is almost unavoidable with a longer distance between the adjustment of the web tension profile and the winding machine, can be virtually ruled out. With high reliability, therefore, a good winding result can be achieved.
  • Fig. 1 is a regulation of a web tension profile of a first embodiment
  • Fig. 2 is a regulation of a web tension profile of a second embodiment.
  • Fig. 1 three web tension profiles 1, 2, 3 are shown with each other over a width of a web of paper or cardboard, wherein the web tension profile 1 represents the web tension profile, which has the web without interference.
  • An average of the web tension profile 1 is denoted by 4. It can be seen that the web tension is greater than zero both at the edges and in the middle of the web. However, the web tension is smaller than the mean value 4 in edge regions 5, 6. In the middle region 7 the web train is higher than the average value 4.
  • the web tension profile 1 is thus quite non-uniform and has in particular relatively flabby edges.
  • the web tension profile can now be evened out.
  • the web tension profile 2 can already be achieved by control.
  • the web tension differences between the edge regions 5, 6 and the middle region 7 are already much less pronounced than in the case of the web tension profile 1. in that a deflection of a web tension profile adjustment roller is reduced. This reduces a web tension in the central region 7, at the same time the web tension in the edge regions 5, 6 is increased.
  • a further improvement shows the web tension profile 3, which is achieved by a regulation of the web tension profile.
  • Both in the edge regions 5, 6 and in the central region 7 of the web train corresponds to almost the mean value of 4.
  • Such a flat web tension profile allows a very good winding result and a good web run.
  • web tension profiles 8, 9, 10 are shown, wherein the web tension lies above the mean value 4 in the edge regions 5, 6 and below the mean value 4 in the middle region 7.
  • the edges of the web are thus spanned, while the middle is relatively loose.
  • An improvement of the web tension profile 8, 9, 10 can now be achieved e.g. achieve that a deflection of the Bruzugprofileinstellwalze is increased.
  • the more even web tension profile 9 can thus be achieved at least.
  • Deviations from the mean value 4 in the edge regions 5, 6 and also in the central region 7 are already lower. By regulating the almost flat Bruzugprofil 10 can be achieved. The deviations of the web tension in the edge regions 5, 6 and in the middle region 7 from the mean value 4 are only minimal. This will be an improved web run and a small number Demolition guaranteed. At the same time, a web with such a flat web tension profile can be wound up well.

Landscapes

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

Abstract

L'invention concerne un dispositif et un procédé de guidage d'une bande de papier ou de carton. Le profil de traction de bande (1, 2, 3, 8, 9, 10) est mesuré par un dispositif de mesure, transversalement à la direction de la machine. Le profil de traction de bande (1, 2, 3, 8, 9, 10) est réglé par un dispositif de commande.
PCT/EP2010/051613 2009-02-18 2010-02-10 Dispositif et procédé de guidage d'une bande de papier ou de carton WO2010094600A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10703645A EP2398725A1 (fr) 2009-02-18 2010-02-10 Dispositif et procédé de guidage d'une bande de papier ou de carton

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910000955 DE102009000955A1 (de) 2009-02-18 2009-02-18 Vorrichtung und Verfahren zum Führen einer Bahn aus Papier oder Karton
DE102009000955.8 2009-02-18

Publications (1)

Publication Number Publication Date
WO2010094600A1 true WO2010094600A1 (fr) 2010-08-26

Family

ID=42123147

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/051613 WO2010094600A1 (fr) 2009-02-18 2010-02-10 Dispositif et procédé de guidage d'une bande de papier ou de carton

Country Status (3)

Country Link
EP (1) EP2398725A1 (fr)
DE (1) DE102009000955A1 (fr)
WO (1) WO2010094600A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5298121A (en) * 1989-09-04 1994-03-29 Davy Mckee (Poole) Limited Method of controlling the axial stretch property of a strip of paper
WO1999042392A1 (fr) * 1998-02-17 1999-08-26 Valmet Corporation Procede et appareil de bobinage d'une bande
EP1413672A1 (fr) * 2002-10-23 2004-04-28 Voith Paper Patent GmbH Appareil pour la registration indirecte ou directe d'une tension locale d'un matériau en mouvement sous forme de bande dans au moins une position transversale de la bande
EP1514817A1 (fr) 2003-09-12 2005-03-16 Voith Paper Patent GmbH Méthode et appareil pour mesurer la tension d'une bande, en particulier d'une bande fibreuse
DE10359113A1 (de) 2003-12-17 2005-07-21 Voith Paper Patent Gmbh Breitstreckvorrichtung
WO2006003262A1 (fr) * 2004-07-01 2006-01-12 Metso Paper, Inc. Procede et systeme d'enroulement et appareil de mesure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5298121A (en) * 1989-09-04 1994-03-29 Davy Mckee (Poole) Limited Method of controlling the axial stretch property of a strip of paper
WO1999042392A1 (fr) * 1998-02-17 1999-08-26 Valmet Corporation Procede et appareil de bobinage d'une bande
EP1413672A1 (fr) * 2002-10-23 2004-04-28 Voith Paper Patent GmbH Appareil pour la registration indirecte ou directe d'une tension locale d'un matériau en mouvement sous forme de bande dans au moins une position transversale de la bande
EP1514817A1 (fr) 2003-09-12 2005-03-16 Voith Paper Patent GmbH Méthode et appareil pour mesurer la tension d'une bande, en particulier d'une bande fibreuse
DE10359113A1 (de) 2003-12-17 2005-07-21 Voith Paper Patent Gmbh Breitstreckvorrichtung
WO2006003262A1 (fr) * 2004-07-01 2006-01-12 Metso Paper, Inc. Procede et systeme d'enroulement et appareil de mesure

Also Published As

Publication number Publication date
EP2398725A1 (fr) 2011-12-28
DE102009000955A1 (de) 2010-08-19

Similar Documents

Publication Publication Date Title
EP0976674B2 (fr) Dispositif de réglage de la tension d'une bande
DE3114056C2 (fr)
EP1790601B1 (fr) Contrôle de la tension d'une bande de matériau
EP0424874B1 (fr) Procédé et dispositif pour réduire les déchets dans une machine à imprimer rotative
DE69911187T2 (de) Verfahren zur feststellung einer irreversibelen ausdehnung und eines dynamischen elastizitätsmoduls
DE2930005A1 (de) Verfahren und einrichtung zum herstellen eines plattenmaterials, das eine gleichmaessige breite und eine laengsweise dickenaenderung hat
DE1761432B1 (de) Vorrichtung zum konstanthalten der spannung einer durch eine druckmaschine laufenden werkstoffbahn
WO2002007974A1 (fr) Procede de regulation de la tension d'une bande de matiere
AT413111B (de) Verfahren und anordnung in verbindung mit einer papiermaschine oder einer vorrichtung zur weiterverarbeitung einer papierbahn
DE10326133B4 (de) Vorrichtung und Verfahren zum Regeln der Spannkraft eines umlaufenden Bandes
EP1303404A1 (fr) Procede de regulation de la tension d'une bande de matiere dans une machine d'impression rotative
DE10140645B4 (de) Verfahren zum Betreiben eines Streckwerks sowie Streckwerk
EP1347878B1 (fr) Procede pour reguler un reperage circonferentiel dans une rotative a bobine
WO2016197158A1 (fr) Bobineuse servant à enrouler un produit à bobiner
DE3609845A1 (de) Verfahren und vorrichtung zur musterbildung bei einer webmaschine
DE2836595A1 (de) Verfahren zur regelung der dicke eines flachen produkts waehrend des walzens und vorrichtung zur durchfuehrung des verfahrens
WO2010094600A1 (fr) Dispositif et procédé de guidage d'une bande de papier ou de carton
DE4221395A1 (de) Verfahren zum zerstörungsfreien Bestimmen eines mit der breitenbezogenen Bruchkraft korrelierenden Kennwertes an einer laufenden Papierbahn
EP0575371B1 (fr) Procede pour l'elimination de defauts de planeite lors de la fabrication de bandes continues, en particulier dans des machines a cartonnage, et dispositif pour la realisation dudit procede
DE3404833C2 (fr)
DE102007000585A1 (de) Verfahren und Vorrichtung zum Aufwickeln einer Materialbahn zu einer Materialbahnrolle
DE2548299A1 (de) Verfahren zum erfassen von messwerten, die von der dicke eines faserbelages abhaengig sind, an einen faserbelag verarbeitenden maschinen sowie einrichtung zur durchfuehrung des verfahrens
DE3837101A1 (de) Verfahren zum steuern des bandlaufs beim walzen, in einer walzstrasse
DE9112257U1 (de) Konusschärmaschine
DE2366413C2 (de) Vorrichtung zur Steuerung der Ebenheit und Parallelität von Walzgutoberflächen

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10703645

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2010703645

Country of ref document: EP