EP4306466A1 - Procédé d'enroulement d'une bande de matière et dispositif d'enroulement - Google Patents

Procédé d'enroulement d'une bande de matière et dispositif d'enroulement Download PDF

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Publication number
EP4306466A1
EP4306466A1 EP22184594.4A EP22184594A EP4306466A1 EP 4306466 A1 EP4306466 A1 EP 4306466A1 EP 22184594 A EP22184594 A EP 22184594A EP 4306466 A1 EP4306466 A1 EP 4306466A1
Authority
EP
European Patent Office
Prior art keywords
roller
material web
partial webs
tensile stress
winding
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.)
Pending
Application number
EP22184594.4A
Other languages
German (de)
English (en)
Inventor
Thomas Rauscher
Christoph Iglseder
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.)
SML Maschinen GmbH
Original Assignee
SML Maschinen 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 SML Maschinen GmbH filed Critical SML Maschinen GmbH
Priority to EP22184594.4A priority Critical patent/EP4306466A1/fr
Priority to US18/219,994 priority patent/US20240116730A1/en
Priority to BR102023013927-2A priority patent/BR102023013927A2/pt
Publication of EP4306466A1 publication Critical patent/EP4306466A1/fr
Pending 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
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/1806—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in reel-to-reel type web winding and unwinding mechanism, e.g. mechanism acting on 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
    • 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
    • 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
    • B65H23/192—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 motor-controlled
    • 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
    • B65H23/1888—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 and controlling web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4432—Moving, forwarding, guiding material by acting on surface of handled material by means having an operating surface contacting only one face of the material, e.g. roller
    • B65H2301/44324—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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5151—Cutting handled material transversally to feeding direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/16—Details of driving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/231—Turret winders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film

Definitions

  • the invention relates to a method for winding up a material web, in particular a plastic film, by means of a winding device, wherein the material web is guided from at least one first roller to at least one second roller in a conveying direction, with at least one between the first roller and the second roller Cutting device is arranged, which cuts the material web into at least two partial webs, the partial webs being wound into a roll in the conveying direction behind the second roller.
  • the invention further relates to a winding device.
  • the invention is therefore based on the object of providing a method and a device of the type mentioned at the outset, with which it is possible to ensure that inexpensively wound rolls can be produced in a simple manner and without high expenditure on equipment. in which the above-mentioned problems do not occur.
  • the solution to this problem by the invention is characterized according to the method in that the at least one first roller and the at least one second roller are each driven by a drive in such a way that the tensile stress in the material web or in the partial webs changes over time in the conveying direction of the material web.
  • the at least one first roller and the at least one second roller can each be driven by their drive in such a way that the tensile stress in the material web or in the partial webs changes periodically. It is particularly preferred that the at least one first roller and the at least one second roller are each driven by their drive in such a way that the tensile stress in the material web or in the partial webs changes essentially sinusoidally around an average value.
  • the time-variable tensile stress can be achieved by controlling or regulating the rotational speed of at least one of the roller drives in a time-variable manner (and in particular on the basis of a superimposed sine function).
  • the maximum tensile stress applied to the material web or to the partial webs changes in such a way that the maximum value of the tensile stress increases by at least 0.1%, preferably by at least 1.5% and particularly preferably by at least 5.0% higher than the minimum value of the tensile stress.
  • the at least one first roller cooperates with a further roller in order to be able to build up a tensile stress in the material web or in the partial webs.
  • the at least one second roller cooperates with another roller in order to be able to build up a tensile stress in the material web or in the partial webs.
  • the at least one first roller is driven at a constant rotational speed and the at least one second roller is driven at a rotational speed that changes over time is driven.
  • the procedure is preferably such that this change occurs in such a way that the maximum value of the rotational speed is at least 0.1%, preferably at least 1.5% and particularly preferably at least 5.0% higher than that Minimum value of rotation speed.
  • a periodically changing course and in particular a sine-like course is preferably specified.
  • the change in the tensile stress in the material web or in the partial webs is preferably carried out in such a way that the width of the material web or the partial webs changes by a value of +/- 0.1 mm to +/- 5 mm around the mean value of the width.
  • the mean value is to be understood as the arithmetic mean value of the corresponding path, which here changes periodically by the dimensions mentioned.
  • the proposed winding device for winding a material web has at least one first roller and at least one second roller with which the material web can be guided in a conveying direction, the first roller and the second roller each being connected to a drive are, with which the rollers can be rotated, furthermore at least one cutting device which is arranged between the first roller and the second roller in order to be able to cut the material web into at least two partial webs, and at least one winder for winding up the partial webs, the winder is arranged behind the second roller in the conveying direction.
  • the drives of the first roller and the second roller are connected to a control device, the Control device is designed to drive one of the rollers at a non-uniform rotational speed.
  • the control device is preferably designed to drive one of the rollers in a periodically variable manner, in particular in such a way that the rotational speed of the roller changes substantially sinusoidally around an average value.
  • the at least one first roller cooperates with a further roller and/or that the at least one second roller cooperates with a further roller.
  • At least one of the rollers is preferably provided with a profiling on the roller surface.
  • the material web in particular the plastic film, is specifically stretched or relaxed by changing the tensile stress in the material between two rollers and in particular by the targeted acceleration or braking of rollers, so that the material web is stretched by a different degree of Constriction changed in width.
  • the cut edge of the partial web is no longer straight, but rather wavy and, in particular, “sinusoidal”.
  • the proposed method is used in particular after the film has been trimmed.
  • the change in the width of the material web or the partial webs preferably in a range between +/- 0.1 mm to +/- 5 mm, results in the subsequent winding of the partial webs that the cut edge is not always wound in the same place.
  • the proposed procedure therefore ensures that the cut edge of the film for the individual partial webs is not always in the same place during winding, which means that the winding problems mentioned above can be prevented.
  • the proposed procedure can be activated and deactivated in the process so that there is no impairment of production.
  • the system has to be stopped, which creates waste.
  • the proposed method can still be used advantageously regardless of the width of the rolls.
  • the width of the partial benefits can be adjusted, and in particular the number of partial benefits or rolls can be flexibly selected.
  • Essential elements of the winding device 2 are a first roller 3, which is preferably designed as a driven fixed-point roller, and a second roller 4, which is preferably designed as a lower cutting roller.
  • a cutting device 5 In the conveying direction R of the material web 1 between the two rollers 3 and 4 there is a cutting device 5 with which the material web 1 is cut into the partial webs 1a, 1b, 1c.
  • the central aspect of the proposed concept is that the tensile stress in the material web 1 or in the partial webs 1a, 1b, 1c (after the cut) varies over time.
  • the first roller 3 is driven at a constant rotational speed set for the production process
  • the second roller 4 is driven at a non-constant rotational speed.
  • a sinusoidal curve is preferably superimposed on a basic rotational speed of the second roller 4, so that the rotational speed of the second roller 4 changes accordingly.
  • the further roller 6 which interacts with the first roller 3 and which is designed as a driven fixed-point roller.
  • an upper cutting roller 10 a strip deflection roller 11, a tension measuring roller 12, a satellite roller 13 and a contact roller 14 are also shown, which are useful for the perfect production process.
  • the tension prevailing in the material web 1 or the partial webs 1a, 1b, 1c can be measured in the longitudinal direction via the tension measuring roller 12. In terms of control technology, this makes it possible, for example, to specify a sine curve for the tension in the material and to regulate it accordingly.
  • the material web ie the film
  • the material web is stretched in the conveying direction (longitudinal direction) by the proposed variable tensile stress in the material, which changes the width of the film (see. Figure 3 ).
  • the first and second rollers 3 and 4 and, if applicable, the additional rollers 6 and 7 that interact with these rollers can have a profiled, in particular spiralized and/or roughened surface, so that the corresponding tension in the material web can be reliably built up between the rollers.
  • the rollers between which the tensile stress is built up are one or more rollers before the cut and one or more rollers after the cut, with the first roller 3 and the second roller 4 can be: the upper cutting roller and the lower cutting roller; the fixed point roller and the tension measuring roller or the satellite roller; the fixed point roller and the contact roller.
  • a pressure roller (as in Figure 2 shown), which in this exemplary embodiment is placed at the lower cutting roller and interacts with it.
  • the roller or rollers before the cut are used as a "fixed point", ie these rollers move at a constant rotational speed or speed.
  • the roller or rollers after the cut (in the exemplary embodiment the second roller 4 together with the further roller 7) rotate at a non-uniform speed or speed driven, so that the material web between the first and the second roller is periodically accelerated or braked by changing the rotational speed or the speed of these rollers.
  • the rotational speed of one roller is periodically changed in such a way that, starting from a nominal value of 100%, the roller rotates for a period of e.g. B. is accelerated for 1 s, with the acceleration achieving an increased rotational speed of 101.5%.
  • the roller is then braked for approximately the same period of time (e.g. 1.1 s) until the nominal rotation speed of 100% is reached again. This process is repeated periodically in order to achieve the described effect of changing the width of the web.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP22184594.4A 2022-07-13 2022-07-13 Procédé d'enroulement d'une bande de matière et dispositif d'enroulement Pending EP4306466A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP22184594.4A EP4306466A1 (fr) 2022-07-13 2022-07-13 Procédé d'enroulement d'une bande de matière et dispositif d'enroulement
US18/219,994 US20240116730A1 (en) 2022-07-13 2023-07-10 Method for winding a material sheet and winding device
BR102023013927-2A BR102023013927A2 (pt) 2022-07-13 2023-07-12 Método para o enrolamento de uma tira de material e dispositivo de enrolamento

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22184594.4A EP4306466A1 (fr) 2022-07-13 2022-07-13 Procédé d'enroulement d'une bande de matière et dispositif d'enroulement

Publications (1)

Publication Number Publication Date
EP4306466A1 true EP4306466A1 (fr) 2024-01-17

Family

ID=82594941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22184594.4A Pending EP4306466A1 (fr) 2022-07-13 2022-07-13 Procédé d'enroulement d'une bande de matière et dispositif d'enroulement

Country Status (3)

Country Link
US (1) US20240116730A1 (fr)
EP (1) EP4306466A1 (fr)
BR (1) BR102023013927A2 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0176230A1 (fr) * 1984-08-27 1986-04-02 Hiroshi Kataoka Bobineuse avec dispositif pour fendre
JPH02225243A (ja) * 1989-02-27 1990-09-07 Kataoka Mach Co Ltd シート分割巻取装置
US5967437A (en) 1997-05-13 1999-10-19 Thimon Machine for winding film, a method of making spools of pre-stretched film, and spools of prestretched film obtained thereby
EP1138620A2 (fr) * 2000-03-09 2001-10-04 Jagenberg Papiertechnik GmbH Machine de bobinage avec cylindres porteurs pour enrouler des bandes de papier ou carton
US8100356B2 (en) 2008-07-21 2012-01-24 Paragon Films, Inc. Apparatus and method for winding film onto a film roll
US20140208905A1 (en) 2013-01-31 2014-07-31 Anthony Galea Method and apparatus for fabricating stretch film rolls
US10494215B2 (en) 2013-01-31 2019-12-03 Anthony Galea Method and apparatus for fabricating stretch film rolls
US20190389121A1 (en) * 2018-06-25 2019-12-26 Sumitomo Chemical Company, Limited Method for producing film and film winding device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0176230A1 (fr) * 1984-08-27 1986-04-02 Hiroshi Kataoka Bobineuse avec dispositif pour fendre
JPH02225243A (ja) * 1989-02-27 1990-09-07 Kataoka Mach Co Ltd シート分割巻取装置
US5967437A (en) 1997-05-13 1999-10-19 Thimon Machine for winding film, a method of making spools of pre-stretched film, and spools of prestretched film obtained thereby
EP1138620A2 (fr) * 2000-03-09 2001-10-04 Jagenberg Papiertechnik GmbH Machine de bobinage avec cylindres porteurs pour enrouler des bandes de papier ou carton
US8100356B2 (en) 2008-07-21 2012-01-24 Paragon Films, Inc. Apparatus and method for winding film onto a film roll
US20140208905A1 (en) 2013-01-31 2014-07-31 Anthony Galea Method and apparatus for fabricating stretch film rolls
US10494215B2 (en) 2013-01-31 2019-12-03 Anthony Galea Method and apparatus for fabricating stretch film rolls
US20190389121A1 (en) * 2018-06-25 2019-12-26 Sumitomo Chemical Company, Limited Method for producing film and film winding device

Also Published As

Publication number Publication date
US20240116730A1 (en) 2024-04-11
BR102023013927A2 (pt) 2024-01-23

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