EP0523528A1 - Dispositif pour enrouler une bande continu - Google Patents

Dispositif pour enrouler une bande continu Download PDF

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Publication number
EP0523528A1
EP0523528A1 EP92111589A EP92111589A EP0523528A1 EP 0523528 A1 EP0523528 A1 EP 0523528A1 EP 92111589 A EP92111589 A EP 92111589A EP 92111589 A EP92111589 A EP 92111589A EP 0523528 A1 EP0523528 A1 EP 0523528A1
Authority
EP
European Patent Office
Prior art keywords
winding
contact roller
material web
roller
driven
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Withdrawn
Application number
EP92111589A
Other languages
German (de)
English (en)
Inventor
Frank Mannaberg
Horst Koehler
Helmut Maier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Emtec Magnetics GmbH
Original Assignee
BASF Magnetics 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 BASF Magnetics GmbH filed Critical BASF Magnetics GmbH
Publication of EP0523528A1 publication Critical patent/EP0523528A1/fr
Withdrawn legal-status Critical Current

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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
    • B65H23/195—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

Definitions

  • the invention relates to a device for winding up a running material web, which is wound onto a winding tube until a certain winding diameter is reached, a contact roller pressing the material web against the winding tube.
  • the material web can be, for example, a paper web, a film web or one with a web magnetic coating provided plastic sheet.
  • the task is to separate the material web wound on a winding tube with a separating knife after reaching a certain winding diameter and to wind the new material web beginning that has been formed onto an empty winding tube while the full package is being removed and replaced by an empty winding tube.
  • the almost completely wound winding tube leaves its winding position.
  • a new sleeve to be wound takes its place.
  • the running web is cut between the new and wound winding tube and lies against the new tube, whereupon the process just mentioned begins again.
  • DE-OS 39 36 286 describes a suction roller for conveying a material web, in which one is made of porous sintered metal existing surface-treated roller body with a specific pore distribution across the width is used to convey the material web.
  • the German application P 40 03 927 describes a hollow roller suction device for conveying a material web, in which sealing wedges are attached laterally below the material web to reduce the suction vacuum.
  • the tape tension determines the winding hardness during winding and thus the quality of the material web.
  • the winding hardness can be adjusted, inter alia, by the pressure of the rollers (7, 9) on the winding and by the tape tension caused by the oscillating roller (5). If the tape tension is too low, the web tends to move sideways, but if the tape tension and pressing forces are too high, the material web can be damaged, or introduced particles or deformations impact on adjacent winding layers and the product is unusable.
  • the object of the invention was to achieve a uniform and preferably the lowest possible winding hardness of the wound web with the highest possible strip tension.
  • a wrinkle-free smooth winding pattern should be achieved even with a large winding diameter.
  • FIG. 1 shows the principle of the winding device according to the present invention.
  • a material web (2) coming from a coating device (not shown) passes through deflection rollers (4, 6), between which a pendulum roller (dancer roller) (5) is attached, which applies the required strip tension.
  • the web runs to the winding device to be described, consisting of the driven winding tube (14) onto which the winding is wound, to which a contact roller (7) is pressed.
  • a pressure roller (9) can be pressed onto the contact roller (7), which brings the contact roller to the speed of the material web.
  • the essence of the invention now consists in that the contact roller (7) as well as the winding tube (14) can be driven by a motor; Further statements are made below about the level of the driving forces.
  • Figure 2 shows another arrangement that is possible within the scope of the invention.
  • the material web (2) passes through a cooling roller (3) and a pendulum roller (5), between which there are deflection rollers or pressure rollers (1, 4, 6).
  • the web then runs over a further deflection roller (8) between a pressure roller (9) and an outer driven contact roller (7) onto the winding tube (14), with an additional inner dragged contact roller (7) lying opposite the outer driven contact roller (7). 12) is located.
  • Figure 3 shows a top view of the drive of the contact roller (7). It consists of a motor (10), for example a direct current motor, which drives the contact roller (7) via a belt drive (11) and a pneumatic coupling (13), which in turn acts on the winding (14).
  • a motor (10) for example a direct current motor, which drives the contact roller (7) via a belt drive (11) and a pneumatic coupling (13), which in turn acts on the winding (14).
  • the outer contact roller (7) has the task of ensuring the transfer of the material web (2) to the winding (14). By pressing the roller (7), the air layer wrapped between the individual layers of film is reduced, the winding becomes harder.
  • the point of application of the driven contact roller is chosen at the point where the material web (2) runs onto the winding (14).
  • the point of contact of the contact roller can also be arranged after the location of the web running onto the roll, even then the advantages according to the invention are retained.
  • the winder drive supplies the energy for driving the towed roller (12) via the material web and the frictional connection to the winding.
  • the inner contact roller (12) is particularly intended for operation in a so-called turret winder, in which the winding is not in contact with the outer contact roller (7) during turning. However, the roller (12) can rest against the winding (14) during the entire winding process.
  • the tape tension directly on the reel results in the dragged contact roller from the resulting tape tension, which is applied by means of the force of the pendulum roller (5), minus the tensile losses due to the frictional forces on contact and deflection rollers.
  • the tape tension acting on the reel and the pressure of the contact rollers determine the hardness of the reel at a selected speed.
  • the nominal strip tension is usually set quite low at 30-50 N according to the prior art.
  • FIG. 5 shows the force relationships during operation of the driven contact roller.
  • the belt tensile force F BZ acts counter to the web running direction, while the force F KW acting through the driven contact roller exists in the direction of the belt running.
  • a strip tension of 92 N was set before the reel (14), which was constant over the length of the film was.
  • the pressure of the driven contact roller was 600 N
  • the machine speed of the running material web was 200 m / min.
  • the pressure roller (9) pressed at 1.5 bar onto the contact roller (7). Without the driven contact roller, the winding hardness was about 125 units of measurement at the specified strip tension of 92 N, while with the driven contact roller the winding hardness was to be lowered far below 40 units of measurement without the risk of loop formation.
  • the contact roller (7) does not rest on the winding (14) as described.
  • the torque to be set for the winding process would be too high.
  • it must be reduced so that only the frictional moments of the drive system are compensated for or the drive is separated from the roller by a clutch (13).

Landscapes

  • Winding Of Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP92111589A 1991-07-18 1992-07-08 Dispositif pour enrouler une bande continu Withdrawn EP0523528A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914123761 DE4123761A1 (de) 1991-07-18 1991-07-18 Vorrichtung zum aufwickeln einer laufenden materialbahn
DE4123761 1991-07-18

Publications (1)

Publication Number Publication Date
EP0523528A1 true EP0523528A1 (fr) 1993-01-20

Family

ID=6436410

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92111589A Withdrawn EP0523528A1 (fr) 1991-07-18 1992-07-08 Dispositif pour enrouler une bande continu

Country Status (2)

Country Link
EP (1) EP0523528A1 (fr)
DE (1) DE4123761A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4401027C2 (de) * 1994-01-15 1995-11-09 Voith Gmbh J M Tragtrommelroller für eine Papiermaschine
DE4402874A1 (de) * 1994-02-01 1995-08-03 Beloit Technologies Inc System zur Erzeugung einer einwandfreien Wickelstruktur
DE4437533C2 (de) * 1994-10-20 1998-07-09 Voith Gmbh J M Vorrichtung zum Aufwickeln einer laufenden Papierbahn
DE19716887A1 (de) * 1997-04-22 1998-10-29 Voith Sulzer Papiermasch Gmbh Wickelmaschine
DE19848812A1 (de) * 1998-10-22 2000-04-27 Voith Sulzer Papiertech Patent Vorrichtung und Verfahren zum Aufführen einer Materialbahn

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506863A (en) * 1965-06-24 1970-04-14 Continental Can Co Web tension controlling rewind drive
GB2117935A (en) * 1982-04-01 1983-10-19 Asea Ab A method of controlling a web winding process
EP0394197A2 (fr) * 1989-04-21 1990-10-24 Gottlieb Looser Procédé et dispositif d'enroulement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506863A (en) * 1965-06-24 1970-04-14 Continental Can Co Web tension controlling rewind drive
GB2117935A (en) * 1982-04-01 1983-10-19 Asea Ab A method of controlling a web winding process
EP0394197A2 (fr) * 1989-04-21 1990-10-24 Gottlieb Looser Procédé et dispositif d'enroulement

Also Published As

Publication number Publication date
DE4123761A1 (de) 1993-01-21

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