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WO2011034767A1 - Dispositif de déroulage pour dérouler une bande de matériau d'un rouleau - Google Patents

Dispositif de déroulage pour dérouler une bande de matériau d'un rouleau Download PDF

Info

Publication number
WO2011034767A1
WO2011034767A1 PCT/US2010/048187 US2010048187W WO2011034767A1 WO 2011034767 A1 WO2011034767 A1 WO 2011034767A1 US 2010048187 W US2010048187 W US 2010048187W WO 2011034767 A1 WO2011034767 A1 WO 2011034767A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
web
idler
peel
idlers
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.)
Ceased
Application number
PCT/US2010/048187
Other languages
English (en)
Inventor
Vito Carla
Hauke Wiechmann
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to CN201080041528.3A priority Critical patent/CN102574650B/zh
Priority to IN1729DEN2012 priority patent/IN2012DN01729A/en
Publication of WO2011034767A1 publication Critical patent/WO2011034767A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/31—Features of transport path
    • B65H2301/312—Features of transport path for transport path involving at least two planes of transport forming an angle between each other
    • B65H2301/3123—S-shaped
    • 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 refers to a peel off device for unwinding a web of material from a stock or forming roll, especially for high speed unwinding a web of a thin polymer film or the like.
  • the problem underlying the present invention arises in the field of continuous production of e.g. baby or feminine hygiene care products like diapers or sanitary napkins, where thin polymer films such as a backing sheet or a topsheet have to be peeled off from a stock roll at a high speed.
  • thin polymer films such as a backing sheet or a topsheet have to be peeled off from a stock roll at a high speed.
  • a polymer web may tend to adhere to the stock roll for several reasons, such as interlocking phenomena due to microstructures in the web (e.g. apertures) or adhesion due to the surface properties of the web material.
  • Said blocking is a severe problem for downstream processes as it introduces sudden changes of tension, cross-direction tracking issues and wrinkle formation within the web. In most critical cases a web breakage can occur leading to a complete production line stop.
  • US 3 368 771 A discloses a method and an apparatus for unwinding a rolled web of material.
  • the apparatus comprises two rollers which are in contact with each other and supported on a rocker arm by means of which a first idler is pivoted onto the stock roll.
  • the web is led around the flexible surface of the first idler, runs through a gap between the first and a second idler and then is led away via the second idler.
  • the latter has a surface with venting passages at the periphery which together with a surface layer of elastic material on the first idler helps to enable the air between the web of material and the surface of the roller to escape completely to the side.
  • the overall object of the prior art apparatus on the one hand is to compensate for the local distortions that are inherent in a particular web of material and which extend in the longitudinal direction and are due, for example, to variations in thickness.
  • the air introduced between the web and the rollers is removed owing to a slight contact pressure between the first and second roller which displaces the film of air which is drawn between the web of material and the second roller.
  • the first idler is in a "out of pressure contact", this means that the stock roll and the first idler have a space between them or may just touch so long as no appreciable pressure is exerted by the roller on the stock roll. It was found out that with this "pressureless" concept and the two contacting idlers no significant improvement in avoiding web blocking in modern high speed applications can be reached.
  • FR 2 573 059 Al discloses a peel off device for unwinding a web of material from a stock roll especially for high speed unwinding a web of a thin polymer film or the like.
  • This peel off device comprises a base associated to the roll and a linear guiding device mounted on the base. On the linear guiding device several rolls are positioned offset to each other providing for a meandering path of the web between the rolls. Two of the rolls are driven to unwind the web material from the stock roll.
  • a device comprising:
  • the idlers are mounted offset with respect to each other on the idler support to provide for a meandering path of the web between the idlers
  • This two-idler peeling system significantly differentiates the invention from the known unwinding devices. Firstly, the first idler is maintained in permanent contact with the surface of the roll while the web is peeled off which helps to maximize and maintain constant the peel force even at high speed. Secondly, the separate, offset second idler provides immediate restraining action to prevent the web from passing underneath the first (peeling) idler without being peeling off. Furthermore, the span between the two idlers and the next span of the web path can be maintained at a constant angle.
  • the invention only needs a limited layout space due to the compact construction elements involved.
  • Fig. 1 shows a schematic elevation of a peel off device according to the invention in a first embodiment.
  • Fig. 2 shows an enlarged partial schematic elevation of a peel off device according to the invention in a second embodiment.
  • the first embodiment of a peel off device depicted in Fig. 1 is associated to a stock roll 1 of material, e.g. a thin plastic web 2.
  • the stock roll 1 is supported on a driven central reel 3 on which it rotates in the direction R when the web 2 is unwound and supplied to a production line via common unwind dancers (not shown) after leaving the second idler 10.
  • the web may then be used in a converting line for example to be used as topsheet or backsheet in an absorbent article.
  • a peel off device 4 which comprises a base 5 associated to the stock roll 1, i.e. in the case shown the beamlike base 5 extends behind the stock roll 1.
  • a linear guiding device 6, such as a guiding rail, is mounted on the base 5 in lengthwise direction. This guiding rail 6 holds the idler support 7 via a guide block 8 which is linearly guided along the guiding rail 6.
  • First and second idlers 9, 10 are mounted offset with respect to each other on the idler support 7 to provide for a meandering path of the web 2 between the two idlers 9, 10.
  • the idlers can freely rotate in relation to the idler support.
  • the idlers 9, 10 respectively comprise axes of rotation A9 and A10 which are parallel to the bearing axis A3 of the stock roll reel 3.
  • the first idler 9 is kept in surface contact with the circumference 11 of the stock roll 1 by being pushed towards the stock roll 1 by the idler support 7 to generate a contact force F between the first idler 9 and the circumference 11 of the stock roll 1 as the web is peeled off.
  • This force F can be generated by a pneumatic drive system using a pressurized air cylinder 12 abutting on the base 5 and pushing the idler support 7 along the guiding rail 6.
  • the contact force F may be desired to be maintained in a range between 2 N and 5 N, and may be set up to remain approximately constant during the peeling off process. This may be equivalent to an air pressure of about 1.5 bars when using a pneumatic system.
  • the force may also be in the range of between 1 N and 15 N for example .
  • the peel off angle is defined as the angle between the tangent of the roll at the point of peeling off and the line tangent with the surface of the first idler guiding the web and passing through the center of the roll. It is believed that a peel off angle of about 90° maximizes the peeling force and reduces the risk of breakup of the web.
  • the center to center distance of the two idlers can be a multiple of the (first) idler diameter, e.g. three to six times the diameter.
  • the first and second idlers may advantageously be formed by identical pieces to simplify installation and maintenance but this is not necessary.
  • the angle C between the tangent of the surface 11 of the roll 1 at the point of contact with the idler 9 and the line passing through the centers of the first and second idlers is of more than 270° to provide a meandering path for the web between the idlers.
  • the angle C may be of from 300° to 360°, more advantageously between 320° to 350°, or more precisely from 330° to 350°.
  • the two idlers can be advantageously mounted in a fixed position relative to each other on the idler support so that their distance and angle are advantageously kept constant during the peel off process.
  • a magnetic position tracking system 13 may be incorporated into the guiding rail 6 for detecting the position of the guide block 8 along the guiding roll 6. This serves to record the position of the guide block 8 and thus of the first idler 9, i.e. this gives a signal for the current size of the stock roll 1.
  • a magnetic position tracking system may be advantageous to provide a robust system against natural occurring dust formation.
  • the position tracking system 13 may also be used to detect an anomalous blocking of the movement of the idler support towards the roll 1.
  • a control unit (not shown) may give a signal to push the idler support 7 by means of a short burst of pressurized from the air cylinder 12 in a direction towards the roll 1.
  • a force impulse is applicable which exceeds the continuous pushing force F.
  • the pressure burst may exemplarily generate a force F of 8 N in a time of 0.5 s.
  • the dot and dash lines in the drawing show the situation when the stock roll 1 has decreased in diameter considerably versa the initial state depicted in full lines.
  • the idler support 7 has moved linearly along the guiding rail 6 thus moving the idler 9 in a more or less radial direction as concerns the stock roll 1 in synchronism with the diminishing stock on the roll 1.
  • the idler 9 is kept in contact with the stock roll 1 during the complete unwinding process.
  • the second embodiment of the peel off device as it is shown in Fig. 2 again includes a stock roll 1 of e. g. a thin plastic web 2.
  • the support and drive of the stock roll 1 may be the same as the embodiment of Fig. 1.
  • the peel off device 4' of the second embodiment comprises a base 5 associated to the stock roll 1, on which a linear guiding device 6, such as a guiding rail, is mounted in lengthwise direction.
  • This guiding rail 6 holds the idler support 7' , the guide block 8' of which - contrary to the first embodiment - rotatably supports only the second idler 10.
  • the first idler 9 is rotatably supported on the pivoting end 15 of a lever arm 16 which is pivotably mounted on the idler support 7' via a pivot axis A17.
  • the latter is provided by a rotary pneumatic cylinder 17 which biases the lever arm 16 and thus the idler 9 towards the surface of the stock roll 1 to generate the contact force F.
  • the pivot axis A17 of the lever arm 16 is parallel to the axis of rotation A9 of the idler 9.
  • a further difference compared to the embodiment shown in Fig. 1 is the drive of the roller support T with guide block 8'.
  • the pressurized air cylinder 12 biases the roller support 7 and thus guide block 8 towards the roll, thus creating the contact force F
  • the roller support T with the guide block 8' are linearly driven along the guiding rail 6 by a stepper motor 18.
  • the roller support T and guide block 8' are basically positioned according to the decreasing roll diameter by tracking the roller support T and guide block 8' to the right referring to Fig. 2.
  • any unroundness of the stock roll 1 can be compensated, as the lever arm 16 with the idler 9, as having a relatively low mass, can easily track any deviations of the surface of the stock roll 1 from the ideal round shape.
  • the control of the tracking of the roller support 7' and guide block 8' is provided by position sensors, e. g. proximity sensors 19, which monitor the the position of the lever arm 16 within its pivot range P. When the lever arm 16 increasingly pivots in clockwise direction related to Fig. 2, this is an indication that the stock roll 1 decreases in diameter.
  • roller support 7' and guide block 8' are moved to the right, thus pivoting the lever arm 16 in the counterclockwise direction again until the lever arm 16 on average stands upright and centrally between the pair of proximity sensors 19.
  • a pair of stoppers 20 is provided on the roller support 7'.
  • the controller of the stepper motor 18 "knows" where the roller support 7' and guide block 8' are, as it comprises a counter for the moving steps of the motor. Thus, additional information for the machine control is provided.
  • Features described in relation to one embodiment may of course be used with the apparatus or method of another embodiment unless they are mutually excluding.

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne un dispositif de déroulage (4) pour dérouler une bande de matériau (2) d'un rouleau de matière première (1), en particulier pour dérouler à vitesse élevée une bande de film mince ou analogue, comprenant une base (5) associée au rouleau (1), un dispositif de guidage linéaire (6) monté sur la base (5), un support de rouleau-tendeur (7) guidé de manière linéaire sur la base (5) dans la direction du rouleau (1), et une paire de rouleaux-tendeurs (9, 10) pour la bande (2) à dérouler. Les rouleaux-tendeurs (9, 10) sont montés décalés l'un par rapport à l'autre sur le support de rouleaux-tendeurs (7) afin d'obtenir un trajet sinueux de la bande entre les rouleaux-tendeurs (9, 10). Les axes de rotation (A9, A10) des rouleaux-tendeurs (9, 10) sont parallèles à l'axe de roulement (A3) du rouleau (1). Le premier rouleau-tendeur (9) est poussé vers le rouleau pour maintenir une force de contact (F) entre ledit premier rouleaux-tendeurs (9) et la surface du rouleau (1) pendant que la bande (2) est déroulée du rouleau (1).
PCT/US2010/048187 2009-09-17 2010-09-09 Dispositif de déroulage pour dérouler une bande de matériau d'un rouleau Ceased WO2011034767A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201080041528.3A CN102574650B (zh) 2009-09-17 2010-09-09 用于从辊退绕材料纤维网的剥离装置
IN1729DEN2012 IN2012DN01729A (fr) 2009-09-17 2010-09-09

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP09170603A EP2298676A1 (fr) 2009-09-17 2009-09-17 Dispositif pelable pour dévider une toile de matériau d'un rouleau
EP09170603.6 2009-09-17
EP10168713.5 2010-07-07
EP10168713.5A EP2298675B1 (fr) 2009-09-17 2010-07-07 Dispositif pelable pour dévider une toile de matériau d'un rouleau

Publications (1)

Publication Number Publication Date
WO2011034767A1 true WO2011034767A1 (fr) 2011-03-24

Family

ID=41631009

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/048187 Ceased WO2011034767A1 (fr) 2009-09-17 2010-09-09 Dispositif de déroulage pour dérouler une bande de matériau d'un rouleau

Country Status (5)

Country Link
US (1) US20110062274A1 (fr)
EP (2) EP2298676A1 (fr)
CN (1) CN102574650B (fr)
IN (1) IN2012DN01729A (fr)
WO (1) WO2011034767A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105691763B (zh) * 2016-04-15 2018-01-09 安徽融合智能科技有限公司 一种多型号自匹配家电包装机的智能机架
CN106429581B (zh) * 2016-11-08 2018-03-27 嘉兴市芸芸纺织有限公司 纺织设备的供料装置
EP3630661B1 (fr) 2017-05-30 2021-05-12 Philip Morris Products S.A. Procédé permettant de dérouler une bobine de feuille enroulée et kit pour dérouler une feuille de matériau enroulée en bobine
JP7346428B2 (ja) * 2018-01-29 2023-09-19 テトラ ラバル ホールディングス アンド ファイナンス エス エイ 包装機用のマガジンユニット、マガジンユニットを有する包装機、及び包装機の動作方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR917938A (fr) * 1945-11-23 1947-01-24 Schaeffer & Cie Ets Dispositif pour enrouler, transporter et dérouler des gros rouleaux
US3368771A (en) 1965-04-10 1968-02-13 Kalle Ag Method of and apparatus for unwinding a rolled web of material
US3649447A (en) * 1969-09-09 1972-03-14 Xerox Corp Apparatus for decurling a paper web
DE2225614A1 (de) * 1972-05-26 1973-12-06 Piv Antrieb Reimers Kg Werner Verfahren und vorrichtung zur regelung der zugkraft bei wickeleinrichtungen
GB1473179A (en) * 1973-06-26 1977-05-11 Nishimura Seisakusho Co Apparatus for suppressing rotational oscillations of web supply rolls
FR2573059A1 (fr) 1984-11-13 1986-05-16 Rassinoux Sa Appareil de devidage de film d'emballage
US20030160121A1 (en) * 2002-02-22 2003-08-28 Fuji Photo Film Co., Ltd. Recording material containing device for recording material roll
EP1555094A1 (fr) * 2004-01-14 2005-07-20 Vacotec Co., Ltd. Dispositif de coupe longitudinal pour faire une ligne de coupe avec une forme ondulante

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1774101B1 (de) * 1968-04-08 1971-11-04 Weser Lenze Stahlkontor Vorrichtung zum rollenwechsel und querschneiden von mit hoher geschwindigkeit laufenden bahnen bei mehrfach wickel maschinen
FR2728550A1 (fr) * 1994-12-22 1996-06-28 Sempag Sa Dispositif de mise en place et de raccordement de rouleaux de feuilles de papier et analogue
AU676117B1 (en) * 1995-09-22 1997-02-27 Itw Limited Film stretching mechanism
DE19607349A1 (de) * 1996-02-27 1997-08-28 Voith Sulzer Papiermasch Gmbh Verfahren und Vorrichtung zum Aufwickeln einer Papierbahn zu einer Rolle
ATE290504T1 (de) * 1997-01-25 2005-03-15 Voith Paper Patent Gmbh Wickelmaschine und verfahren zum kontinuierlichen aufwickeln einer materialbahn
US5931406A (en) * 1997-12-08 1999-08-03 Voith Sulzer Papiertechnik Patent Gmbh Method and winder for the continuous winding of a material web
DE10030199A1 (de) * 2000-06-20 2002-01-03 Voith Paper Patent Gmbh Verfahren und Wickelmaschine zum kontinuierlichen Aufwickeln einer Materialbahn
US7344105B2 (en) * 2004-06-03 2008-03-18 The Procter & Gamble Company Method of controlling the winding of a roll of web material
JP4346535B2 (ja) * 2004-09-30 2009-10-21 芝浦メカトロニクス株式会社 接着膜テープ送り機構

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR917938A (fr) * 1945-11-23 1947-01-24 Schaeffer & Cie Ets Dispositif pour enrouler, transporter et dérouler des gros rouleaux
US3368771A (en) 1965-04-10 1968-02-13 Kalle Ag Method of and apparatus for unwinding a rolled web of material
US3649447A (en) * 1969-09-09 1972-03-14 Xerox Corp Apparatus for decurling a paper web
DE2225614A1 (de) * 1972-05-26 1973-12-06 Piv Antrieb Reimers Kg Werner Verfahren und vorrichtung zur regelung der zugkraft bei wickeleinrichtungen
GB1473179A (en) * 1973-06-26 1977-05-11 Nishimura Seisakusho Co Apparatus for suppressing rotational oscillations of web supply rolls
FR2573059A1 (fr) 1984-11-13 1986-05-16 Rassinoux Sa Appareil de devidage de film d'emballage
US20030160121A1 (en) * 2002-02-22 2003-08-28 Fuji Photo Film Co., Ltd. Recording material containing device for recording material roll
EP1555094A1 (fr) * 2004-01-14 2005-07-20 Vacotec Co., Ltd. Dispositif de coupe longitudinal pour faire une ligne de coupe avec une forme ondulante

Also Published As

Publication number Publication date
EP2298676A1 (fr) 2011-03-23
US20110062274A1 (en) 2011-03-17
CN102574650A (zh) 2012-07-11
CN102574650B (zh) 2015-06-17
EP2298675A1 (fr) 2011-03-23
IN2012DN01729A (fr) 2015-06-05
EP2298675B1 (fr) 2015-08-26

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