EP0387632B1 - Dispositif de coupure et d'enroulage pour rubans - Google Patents

Dispositif de coupure et d'enroulage pour rubans Download PDF

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Publication number
EP0387632B1
EP0387632B1 EP90104077A EP90104077A EP0387632B1 EP 0387632 B1 EP0387632 B1 EP 0387632B1 EP 90104077 A EP90104077 A EP 90104077A EP 90104077 A EP90104077 A EP 90104077A EP 0387632 B1 EP0387632 B1 EP 0387632B1
Authority
EP
European Patent Office
Prior art keywords
winding
film
cutting
web
strips
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.)
Expired - Lifetime
Application number
EP90104077A
Other languages
German (de)
English (en)
Other versions
EP0387632A3 (fr
EP0387632A2 (fr
Inventor
Ludwig Zeroni
Bernd Dr. Scholtysik
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 EP0387632A2 publication Critical patent/EP0387632A2/fr
Publication of EP0387632A3 publication Critical patent/EP0387632A3/fr
Application granted granted Critical
Publication of EP0387632B1 publication Critical patent/EP0387632B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding 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
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/513—Modifying electric properties
    • B65H2301/5133—Removing electrostatic charge

Definitions

  • the invention relates to a cutting and winding device for film strips, in which, following a slitting station for cutting film strips from a web, the film strips arranged essentially in a horizontal row are guided to a winding or winding unit. It also relates to a method for changing the spool or winding core when winding up the film strips.
  • a continuous film web of constant width is cut into individual film strips. This is done with the help of a row of stationary separating knives arranged perpendicular to the web running direction, which have the same distance to each other and protrude into the web with their cutting edges directed against the web movement.
  • the finished film strips are then individually wound onto spools or flangeless winding cores on a winding unit.
  • the individual winding units can be arranged in a row one behind the other or next to one another in the running direction of the film strips, or if there are a large number of film strips to be wound up, several rows of winding units can also be arranged one above the other in tiers.
  • DE 34 14 636 describes a method for changing bobbins in which the amount of waste which is to be reduced when winding up several rows of winding units which are arranged one behind the other.
  • a cutting and winding device is known in which the separate film strips are wound onto cores which are fixedly connected to a winding shaft, and four winding shafts are present within a winding star, which are axially displaceable and one denaturing and one Assembly device can be supplied, which simultaneously takes care of the denaturing of a winding shaft of winding cores and the equipping of another shaft with new winding cores.
  • a reel cutting and winding machine for film strips is known, in which, following a longitudinal cutting station for cutting web strips from a web, a separation station is provided for separating adjacent web strips into separate winding axes, with alignment combs in the longitudinal grooves of each winding axis radial alignment edges are arranged adjustable, which position the winding tubes.
  • a corresponding device is known in which, following a slitting station for cutting strips of film from a web, the films on individual Winding cores are guided and each winding core is assigned a drive roller resting on the circumference of the winding.
  • the invention relates to a device and a method for cutting and winding up film strips, consisting of a cross-cutting station for a film web, a subsequent slitting device for separating the web into film strips, and a winding device for the film strips that can be equipped with winding cores.
  • EP-A 0 031 298 discloses a method and an apparatus for producing tape rolls from narrow tape strips cut from a wide tape, at least one row of holes running across the tape being punched out from a material tape.
  • An adhesive strip provided with pressure-sensitive adhesive is then applied to the tape, covering the holes, and the tape is cut into strips such that each strip contains a covered hole in at least one of the rows of holes.
  • the strip is wound onto a roll core, there is a covered punch hole near the end and / or the end of the strip that is leading and / or trailing. Now such a strip of tape is fed to the roll core and wound up, pressure being exerted on the outside of the adhesive strip. The leading end of the strip is glued to the roll core.
  • winding devices for cut web strips are known, in which the strips are guided over a so-called spreading comb, which are pins which deflect the film strips in different directions and the strips are wound up with a device according to DE 23 65 606 mentioned above.
  • this requires extensive effort when changing the bobbin as soon as the full winding circumference is reached. If, for example, a 65 cm wide magnetic tape web is cut lengthways into 3.81 mm wide strips, which are wound on winding cores, then about 170 tape windings have to be glued at the end and removed from the winding axis, after which these winding axes are newly equipped with cores, on which then the beginnings of the film strips must be attached. This can mean a considerable changeover time, which is approximately as long as the winding time.
  • a further work step arises from the fact that the finished tape rolls may have to be provided with intermediate layers for transport and stacked on top of each other in larger containers.
  • Figure 1 shows schematically the side view of a preferred embodiment of the device according to the invention.
  • the film web (1) coming from a casting or extrusion device (not shown) is fed in the direction of the arrow via a cross cutting device (2) to be described further below and subsequently via a loop puller (8) to compensate for web tension fluctuations guided.
  • the web is subsequently cut lengthwise into narrow strips (4) by means of a separating knife arrangement (9), the axis of which is arranged perpendicular to the direction of the film web, or a reel cutter.
  • a separating knife arrangement 9
  • Such arrangements are known from numerous publications, for example from DE 24 05 849 or DE 37 01 716 from the applicant, where in particular arrangements for cutting magnetic tape webs in film strips are described.
  • the cut strips are passed between a pivotable pressure roller (6), the width of which is at least as large as the entire width of the film web, and a guide suction comb (3).
  • the suction comb consists (FIG. 2) of a number of vertically arranged segments (5), the number and width of which corresponds to the number and width of the film strips and which can be subjected to negative pressure. The segments are spaced from each other. The suction comb is laterally pivotable in the film running direction.
  • Adjacent to the suction comb (3) in the direction of travel of the strips is a cutting wheel (7) which can be moved vertically to the film plane and transversely to the direction of travel, or a cutting knife which is moved transversely.
  • the winding of the film strips (4) is accomplished by a rotatable winding device (10) consisting of at least two arms (12, 12 '), at the free ends of which a drivable shaft (13, 13') is located as the winding axis.
  • a rotatable winding device consisting of at least two arms (12, 12 '), at the free ends of which a drivable shaft (13, 13') is located as the winding axis.
  • flange coils or flangeless winding cores 14, 14 '
  • Flange-less winding cores and particularly preferably stackable winding cores according to DE 24 48 853 are preferred for the winding according to the device according to the invention, which are stacked on top of one another so that they are tensioned on a winding shaft in such a way that the windings or the winding surfaces are practically spaced apart.
  • the cross-cutting device (2) already mentioned is used to produce a defined strip length, one strip length being provided with the following one with a specific adhesive point.
  • this device consists in a preferred embodiment of a three-part cutting table. This has two fixed support rails (16, 17) arranged parallel to one another transversely to the film running direction and a narrow support rail (18) arranged vertically displaceable between them. Between the two columns of the rails (16, 17) and the vertically displaceable rail (18), two cutting wheels (15, 15 ') or cutting knife blades for cross-cutting the web (1) can be immersed.
  • an adhesive tape (22) for connecting the two separate web pieces a tape provided with an adhesive surface is preferably used, the two lateral ends (19, 19 ') of which are turned away from the adhesive surface (20), are bent at an obtuse angle and are adhesive-free (FIG. 4).
  • the cutting table can consist of only two support rails, with one in between located gap, wherein a rail is horizontally displaced after the separation of the web by the width of the rail (18) and wherein the adhesive connection is subsequently made.
  • the adhesive tape (22) can also have only one glue-free, bent end.
  • the full tape windings (23) wound on the winding cores (14) are each with an adhesive tape (22) on the outer circumference of the tape winding.
  • the roller (6) is then pivoted onto the suction comb (3), the segments (5) of which are subjected to negative pressure, so that they suck in the film strips (4).
  • the rotatable roller (6) is wetted on its cylindrical surface (24) with a liquid, for example water, for moistening the underside of the film web strips.
  • the cutting wheel (7) is lowered onto the film level and the film strips (4) are cut off transversely to the web direction. This leaves from the glue point (22) to the end of the film a film residue (4 ') of 5 to 20 cm, from the interface to the beginning of the suction comb (3) about 5 to 10 cm.
  • the winding device (10) rotates through 180 °, so that the unwound cores (14 ') already plugged onto the winding shaft (13') are located adjacent to the suction comb.
  • the roller (6) is pivoted away from the suction comb, whereupon the latter with the held strip ends (4) the winding shaft (13 ') with the cores (14') is pivoted to a short distance, so that it reaches the position shown in dashed lines in Figure 1.
  • On the winding cores (14 ') now come the moistened undersides of the ends of the cut strips (4) to lie.
  • the empty cores (14 ') may have been moistened beforehand by an appropriate device.
  • the outer periphery of the intermediate layer foils (21) provided between the winding cores can be immersed in the open gaps (25) between the segments (5) of the guide suction comb (3). This can be facilitated by the winding shaft (13 ') starting up briefly, for example, and the intermediate layers being tightened as a result of centrifugal force.
  • the winding shaft (13 ') is only slowly driven then faster and the winding process begins, while at the same time the negative pressure is removed from the segments (5).
  • the suction comb is either suddenly or gradually swiveled away with the winding diameter (23 ') of the newly emerging tape roll and returns to its original position ( Figure 1).
  • the high speed up to about 1000 m / min. can take place, on the arm (12) of the device (10) all finished tapes (23) can be completely removed as a unit and packed ready for dispatch, for example in a packaging unit according to DE-PS 26 55 254 or DE-GM 87 16 579 and 87 16 580 or 88 03 062 from the applicant.
  • the shaft (13) is then re-equipped with empty winding cores.
  • a defined strip length of the film web is expediently achieved by the cross-cutting device already described (2) manufactured. This is done by cutting the film web at certain intervals on this device with the cutting wheels (15, 15 ') while the web is stationary, then the support rail is moved down and the narrow piece of tape located on it is removed in some way. Then an adhesive tape (22) is put on and the two tape ends are connected to each other by the adhesive surface (20). There is a short distance between the tape ends, which can be a few millimeters to a few centimeters. If this glue point reaches the tape winding on the winding shaft (13 or 13 '), the tape end is liable and the winding process is ended. It can then be continued in a new cycle as described above.
  • the processor can then, for example, for the purpose of loading or winding magnetic tape and cassettes, easily open the glue points on each magnetic tape roll, the so-called pancake at the protruding end of the glue point, remove the short film residues (4 ') and then according to the magnetic tape strips in loader or winder introduce the known prior art.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)

Claims (3)

  1. Dispositif de coupe et d'enroulement pour rubans de feuille, constitué d'un poste de coupe transversale (2) pour la bande de feuille, d'un moyen de coupe longitudinale (9) pour séparer la bande en rubans (4) ainsi que d'un dispositif d'enroulement des rubans pouvant être garni de noyaux d'enroulement (14, 14'), caractérisé par :
    - une table de coupe en trois parties pour couper transversalement la bande (1), constituée de deux barres fixes (16, 17) et d'une barre déplaçable verticalement (18) disposée entre les deux précédentes, ainsi que deux roues de coupe (15, 15') situées au-dessus de la table pour plonger dans les deux interstices entre les barres fixes et la barre mobile
    - un peigne d'aspiration (3) déplaçable en direction de déplacement de la bande, disposé au-dessus des rubans (4) et constitué de plusieurs segments verticaux (5) séparés les uns des autres, pouvant être soumis au vide, pour aspirer les rubans (4), la largeur des segments (5) étant à peu près égale à la largeur des rubans et le nombre des segments égal au nombre des rubans
    - un rouleau cylindrique (6) dont la surface cylindrique (24) est humectable, rapprochable par pivotement de la face inférieure des rubans (4)
    - une roue de coupe (7) déplaçable verticalement par rapport au plan de la bande ainsi que transversalement par rapport à la direction de déplacement de la bande, et disposée au voisinage du peigne d'aspiration (3) en direction de déplacement de la bande, pour couper transversalement les rubans (4)
    - un dispositif d'enroulement (10) tournant, à au moins deux bras (12, 12') portant à leur extrémité chacun un axe mené (13, 13') sur lesquels sont fixés des bobines ou noyaux d'enroulement (14, 14'), entre lesquels peuvent se trouver des feuilles ou collerettes circulaires (21), pour recevoir les extrémités des rubans (4) coupées par la roue de coupe (7), par abaissement, par pivotement du peigne d'aspiration (3) sur le dispositif d'enroulement et ensuite enroulement des rubans (4) sur les noyaux d'enroulement (14, 14').
  2. Dispositif selon la revendication 1, caractérisé par le fait que, par abaissement, par pivotement du peigne à aspiration (3) les feuilles intercalaires (21) se trouvant entre les noyaux d'enroulement (14, 14') plongent dans les interstices ouverts (25) entre les segments (5) du peigne (3).
  3. Procédé pour couper et enrouler des rubans de feuille avec un dispositif selon la revendication 1 et 2, caractérisé par le fait que "on line" (en circuit) après la fabrication d'une bande de feuille (1) au moyen du dispositif de coupe transversale (2), des zones de colle sont appliquées sur la bande (2) à intervalles correspondant à la longueur prédéterminée des rubans (4), les roues de coupe (15, 15') coupant transversalement la bande (1) immobile, après quoi le morceau de bande découpé reposant sur la barre mobile (18) est écarté et, ensuite, un ruban adhésif (22) est appliqué pour relier les morceaux de bande séparés, les deux extrémités latérales (19, 19') du ruban adhésif (22) sont relevées et dépourvus de colles,
    - lors de l'immobilité du rouleau d'enroulement (13) après atteinte du plein enroulement avec zone de colle (22) attenante, le rouleau (6) applique les rubans (4) contre le peigne d'aspiration de sorte qu'elles y sont aspirées,
    - la roue de coupe (7) coupe transversalement les rubans (4) et ensuite l'arbre d'enroulement tourne de 180°,
    - le peigne (3) fait basculer les rubans (4) maintenus fixes, le rouleau étant écarté latéralement jusqu'à voisinage des arbres d'enroulement (13') munis de noyaux (14') nouvellement chargés, de sorte que les rubans viennent s'appliquer par leur face inférieure humectée sur les noyaux d'enroulemenet, après quoi l'arbre (13) est entrainé jusqu'à atteindre une nouvelle zone de colle (22) sur la bobine enroulée (23')
    - la bobine finie (23) est enlevée du rouleau (13) et remplacée par un nouveau noyau d'enroulement (14).
EP90104077A 1989-03-15 1990-03-02 Dispositif de coupure et d'enroulage pour rubans Expired - Lifetime EP0387632B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3908451A DE3908451A1 (de) 1989-03-15 1989-03-15 Schneide- und wickelvorrichtung fuer folienstreifen
DE3908451 1989-03-15

Publications (3)

Publication Number Publication Date
EP0387632A2 EP0387632A2 (fr) 1990-09-19
EP0387632A3 EP0387632A3 (fr) 1991-04-10
EP0387632B1 true EP0387632B1 (fr) 1994-06-01

Family

ID=6376409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104077A Expired - Lifetime EP0387632B1 (fr) 1989-03-15 1990-03-02 Dispositif de coupure et d'enroulage pour rubans

Country Status (4)

Country Link
US (1) US5040737A (fr)
EP (1) EP0387632B1 (fr)
JP (1) JPH02276747A (fr)
DE (2) DE3908451A1 (fr)

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* Cited by examiner, † Cited by third party
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DE59309033D1 (de) * 1992-02-06 1998-11-12 Emtec Magnetics Gmbh Wickeleinrichtung für Magnetbänder
DK0558872T3 (da) * 1992-03-04 1996-09-16 Ciba Geigy Ag Fremgangsmåde og indretning til opvikling af opviklelige substrater
JP2672925B2 (ja) * 1992-08-26 1997-11-05 ワイケイケイ株式会社 テープ状体の自動巻取機
DE9302492U1 (de) * 1993-02-20 1993-04-15 BASF Magnetics GmbH, 6800 Mannheim Wickelarm
FR2722127B1 (fr) * 1994-07-06 1996-08-14 Kodak Pathe Procede et dispositif pour le decoupage de produits photographiques en bandes
DE4447031C2 (de) * 1994-12-28 1998-04-16 Emtec Magnetics Gmbh Wickeleinrichtung für bandförmige Aufzeichnungsträger
DE4447032C2 (de) * 1994-12-28 1998-03-26 Emtec Magnetics Gmbh Wickeleinrichtung für bandförmige Aufzeichnungsträger
SE522269C2 (sv) * 2000-04-27 2004-01-27 Doktor Ruben Innovation Ab Mataranordning med förflyttningsbart fasthållningsorgan och förfarande för att förflytta densamma
DE102004016217A1 (de) * 2004-04-01 2005-10-20 Brueckner Maschbau Verfahren und Vorrichtung zum Bearbeiten einer Folienbahn
ES2346621B1 (es) * 2008-12-23 2011-08-03 Airbus Operations, S.L. Procedimiento y dispositivo para la obtencion de piezas longitudinales.
AT510561B1 (de) 2011-02-21 2012-05-15 Inova Lisec Technologiezentrum Verfahren und vorrichtung zum handhaben von folien-zuschnitten
CN105129486A (zh) * 2015-08-10 2015-12-09 桂林威迈壁纸有限公司 一种壁纸收集装置
ITUA20163344A1 (it) * 2016-05-11 2017-11-11 Celli Nonwovens Spa Macchina e metodo per l'avvolgimento di strisce di materiale nastriforme con mezzi per il taglio trasversale delle strisce e ancoraggio delle strisce all'anima di avvolgimento
CN110921384B (zh) * 2019-12-19 2020-12-25 常州市新创智能科技有限公司 一种多层纤维织物的抓取方法、系统及其收卷方法
CN221253280U (zh) * 2023-11-27 2024-07-02 无锡先导智能装备股份有限公司 输送装置和生箔机

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Also Published As

Publication number Publication date
JPH02276747A (ja) 1990-11-13
DE3908451A1 (de) 1990-09-20
DE59005859D1 (de) 1994-07-07
EP0387632A3 (fr) 1991-04-10
EP0387632A2 (fr) 1990-09-19
US5040737A (en) 1991-08-20

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