EP0211313B1 - Procédé et dispositif pour enrouler une bande - Google Patents

Procédé et dispositif pour enrouler une bande Download PDF

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Publication number
EP0211313B1
EP0211313B1 EP86110041A EP86110041A EP0211313B1 EP 0211313 B1 EP0211313 B1 EP 0211313B1 EP 86110041 A EP86110041 A EP 86110041A EP 86110041 A EP86110041 A EP 86110041A EP 0211313 B1 EP0211313 B1 EP 0211313B1
Authority
EP
European Patent Office
Prior art keywords
winding
force
web
contact
roller
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
Application number
EP86110041A
Other languages
German (de)
English (en)
Other versions
EP0211313A1 (fr
EP0211313B2 (fr
Inventor
Wolfgang Dr. Dipl.-Ing. Dietz
Armin Gras
Harald Dipl.-Ing. Lohmann
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.)
Hoechst AG
Original Assignee
Hoechst AG
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
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Application filed by Hoechst AG filed Critical Hoechst AG
Publication of EP0211313A1 publication Critical patent/EP0211313A1/fr
Publication of EP0211313B1 publication Critical patent/EP0211313B1/fr
Application granted granted Critical
Publication of EP0211313B2 publication Critical patent/EP0211313B2/fr
Anticipated expiration legal-status Critical
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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
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • 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
    • 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
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/43—Rider roll construction

Definitions

  • the invention relates to a method for winding a material web onto a winding core of a winding station, in which the material web is guided with a wrap angle of less than 180 ° around a pressure roller, which bears against a rotating roll of the material web, and a device for winding a material web.
  • the end product is generally wound on a winding core.
  • double and triple turret winders are used, in which the winding device, as the name suggests, consists of two or three winding stations. Double and triple turrets allow production to continue without interruption when the web is cut off. As soon as the maximum winding diameter is reached when winding up the material web, the turret winder swivels an empty winding core into a position that enables the running material web to be cut off or severed. This is done in such a way that the material web is carried along by the empty winding core.
  • DE-OS 3 040 398 discloses a device for exchanging finished windings for empty winding cores in a double carrier roll winding machine for winding webs, in particular paper webs.
  • the finished roll is brought from the winding station to a pull-out station having a pull-out device arranged on the side for pulling out the winding shaft by means of a push-out device.
  • a lever is mounted on both sides of the web, the free end of which has a gripper for gripping the empty winding core.
  • the levers are mounted between the pull-out station and the winding station in such a way that the grippers are in one end position in the pull-out station for receiving an empty winding core and in the other end position in the winding station for dispensing the winding core.
  • DE-OS 3 216 110 describes a winding machine with a winding axle mounted between the power-operated winding lever, a pressure roller interacting with the winding axle and a support roller for the winding.
  • this winding machine the pivoting movements of the winding levers and of the pivoting lever for each winding diameter of the support roller are superimposed on one another.
  • the swivel levers support the winding essentially from below.
  • DE-OS 2 712 436 discloses a process for the continuous production of biaxially oriented heat-fixed polymer film which is subjected to a tension which is at least three times as great as the normal tension occurring during film transport between the stretching stations and the winding station, during which Film is kept at a temperature between room temperature and the freezing point of the film.
  • the polymer film is subjected to the high longitudinal tension between heat setting and winding, the longitudinal tension being at least five times normal transport tension.
  • the winding structure of a roll is improved if the material web is guided around a pressure roller which itself lies directly on the winding with a predetermined contact pressure.
  • the wrap angle of the material web for the pressure roller is 180 ° , which causes the tensile force in the material web to have no component in the direction or against the direction of the pressure force.
  • the pressure force with which the pressure roller presses on the roll in this case is then equal to the force, for example generated by a compressed air cylinder which is connected to the pressure roller in order to press the pressure roller.
  • computers are used, for example, to regulate the forces.
  • Turret winders in which the wrap angle around the pressure roller is 180 ° , are often difficult to operate, since this wrap angle requires constructions which only permit threading of the material web under difficult circumstances.
  • the object of the invention is to wind up material webs with a predetermined winding tension and a predetermined contact force between the winding and the pressure roller, without complex control, with simple means on a winding core of a winding station of a multiple winder.
  • This object is achieved by a method according to the preamble of claim 1 in such a way that the tensile force F b is continuously measured in the material web and a predetermined contact pressure Fp, with which the contact roller bears against the roll, is added to a force F with which presses the pressure roller against the winding.
  • the device for winding a material web onto a winding core of a winding station in which the material web is guided to a rotating winding by a pressure roller and is guided with a wrap angle of less than 180 ° around the pressure roller, is characterized in that the material web is wound in the winding direction Pressure roller is preceded by a measuring roller over which the material web is guided in order to measure the tensile force F b in the material web and that the measured force F b is added to the predetermined pressure force Fp which acts at the point of contact between the pressure roller and the winding of the winding station. and the sum of both forces F b , Fp gives the force F with which the pressure roller is pressed onto the roll.
  • the advantage of the invention is to constantly control the force F b , namely the winding tension, in the material web during winding and, moreover, to be able to regulate the pressing force Fp between the pressing roller and the winding very quickly and very precisely.
  • Another advantage is the ease of use of the system, ie easy threading of the material web through the rollers, since the wrap angle of the material web around the pressure roller is only 90 ° .
  • FIG. 1 schematically shows a double-turn winder 16 known per se, in which two winding cores 4a, 4b are attached to the ends of a rocker 19 which is pivotably mounted on the upper end of a stretcher 18.
  • auxiliary roller 20 approximately at the level of the mounting of the rocker 19, onto which a material web 2, such as a film or paper web, is wound as long as a roll 3 is knocked off on the first winding core 4a until the empty, second winding core 4b is pivoted into the original winding position of the first winding core 4a, in which a pressure roller 5 lies against the winding that is being formed.
  • the winding 3 can be removed from the winding core 4a, which is then in the removal position.
  • the pressure roller 5 is attached to the lower end of a carrier 12, the upper end of which is connected to a pressure cylinder 13.
  • the pressure cylinder 13 is displaceable along a slide rail 22, so that it is always ensured that the pressure roller 5 bears against the winding 3, regardless of how large the diameter of the winding 3 is.
  • the material web 2 is guided with a wrap angle of 90 ° around a deflecting roller 17 to the pressure roller 5 and wraps around it with a wrap angle of 180 ° .
  • the film web 2 runs from the pressure roller 5 onto the winding 3, which is driven with a torque M d of the drive motor of the winding station, not shown.
  • the wrap angle of 180 ° around the pressure roller 5 has the effect that the tensile force F b in the material web 2 has no component in the direction or against the direction of the pressure force Fp.
  • the contact pressure Fp with which the contact roller 5 bears against the winding 3 is then equal to the force F with which the pressure cylinder 13, for example a compressed air or hydraulic cylinder, presses the contact roller 5 against the winding 3.
  • Both the force F b in the material web 2 and the force Fp with which the pressure roller 5 acts on the roll 3 can be constant or can be predetermined as a function of time, for which purpose suitable computers can be used.
  • Double turret winder 16 which are equipped with pressure rollers 5, in which the wrap angle of the material web 2 around the pressure roller is 180 ° , only allow threading of the material web 2 when the machine starts up or after web break-off under difficult circumstances. In practice, therefore, the full wrap angle of 180 ° is often dispensed with, which has the consequence that one of the components of the force F b always acts counter to the contact pressure Fp. It is then only possible through a very complex control to increase the force F in such a way that the component of the force F b in the material web is approximately compensated.
  • FIG. 2 shows a device 1 according to the invention for winding the material web 2 onto a winding core 4 of a winding station 9. Parts of this device 1 which correspond to corresponding parts according to FIGS. 1 and 3 are given the same reference numerals.
  • the material web 2 is guided on guide rollers 10 and 11 in the winding direction C over a measuring roller 6, which is connected upstream of the pressure roller 5.
  • the measuring roller 6 is mounted on load cells 7, which are arranged on a stand 8.
  • one of the load cells 7 is indicated schematically in the upper part of the stand 8.
  • the tensile force F b in the material web 2 is continuously determined using the measuring roller 6.
  • the material web 2 is guided horizontally over the underside of the guide rollers 10 and 11 and rises obliquely upwards to the measuring roller 6.
  • the film web 2 runs horizontally in the direction of the pressure roller 5 and is guided around it with a wrap angle of 90 ° and is wound onto the winding 3 with a winding radius R on the winding core 4.
  • the winding radius R is either running measured or calculated from the film data run length, thickness and winding density. R can be measured with the aid of a displacement sensor, not shown, which moves, for example, with the carrier 12.
  • the winding 3 rotates counterclockwise with a torque M d .
  • the continuously measured force F b is added to the predetermined contact force Fp with which the contact roller 5 is to press against the winding 3, and the sum of the two forces F b and Fp results in the desired value of the force F with which the contact roller 5 in Direction on the wrap is held.
  • the pressure roller 5 is fastened to the lower end of the carrier 12, as is the case with the double turret winder 16 according to FIG. 1.
  • the carrier 12 is connected to the piston of the pressure cylinder 13, which can be moved along the slide rail 22.
  • the pressure cylinder 13 is an air pressure or a hydraulic cylinder, the medium pressure of which is regulated by the output signal of a first control circuit 14.
  • a first control circuit 14 an electrical signal, which corresponds to the force F b determined by the load cells 7, and a further electrical signal are input; feeds, which is equivalent to the predetermined contact pressure Fp of the pressure roller 5.
  • These two electrical signals are added to the output signal of the first control circuit 14, which then regulates the medium pressure of the printing cylinder 13 in such a way that the pressure roller 5 exerts the force Fp on the winding 3 at the point of contact A with the winding 3.
  • the force Fp is the desired value with which the pressure roller 5 is pressed against the winding 3.
  • a second control circuit 15 is also provided, to which the electrical signal of the load cells 7 corresponding to the measured force F b is fed.
  • this signal is compared with a time-variable or constant signal of the target value F b , which corresponds to the predetermined torque M d .
  • the output signal of the second control circuit 15 is fed to the drive motor of the winding station 9, not shown, and thus regulates the torque M d of the winding 3 in such a way that the tensile stress F b exerted on the material web 2 corresponds to the predetermined torque M d .
  • the force F b in the material web 2 is continuously determined by the measuring roller 6, which is mounted on the load cells 7 of the stand 8. This force is added with the contact pressure Fp, which acts at the point of contact A between the contact roller 5 and the winding 3, to the force F, which represents the desired value with which the contact roller 5 is held in the direction of the package.
  • the arrangement shown makes it possible to specify a winding characteristic, ie the force F b in the material web 2, as a function of time. This is done by specifying the torque M d , which can be constant or dependent on time.
  • the constant torque M d or the desired time profile of the torque M d can also be stored mechanically or electronically and specified as a setpoint for a control. In this case, the second control circuit 15 described above can then be omitted.
  • the time profile of the force F b to specify as a desired value in the web of material 2 by the winding tension and the pulling force is set to the material web 2 in advance, and b this desired value with the measured value of the force F as is determined by the measuring roller 6 and the load cells 7, compare and regulate the drive of the winding station 9 or the torque M d so that the target and measured values match. This is done with the help of the second control circuit 15, as has already been described above.
  • FIG. 3 schematically shows a triple turret winder 23 with the winding cores 4a, 4b, 4c, which are rotatably mounted at the corners of a reel changer 21, which has a triangular shape.
  • One of these winding cores namely the winding core 4a, is in the winding position and carries a winding 3 against which the pressure roller 5 bears at the point of contact A.
  • the reel changer 21 is mounted centrally on a stand 18 and can be pivoted in the direction of arrow B in the counterclockwise direction, so that after the reel 3 has been knocked off, as soon as it has reached its predetermined size, the next reel core 4c can be brought into the winding position.
  • the material web 2 wraps around the pressure roller 5 with a wrap angle of 90 ° and is guided over the measuring roller 6 upstream of the pressure roller 5 in the winding direction R, which is mounted on load cells 7 on the stand 8.
  • the pressure roller 5 is mounted in the same manner as in the arrangement according to FIG. 2 at the lower end of the carrier 12, which is connected at its upper end to a pressure piston (not shown) of the pressure cylinder 13 which can be moved horizontally back and forth along the slide rail 22.
  • the remaining parts of this arrangement such as the first and the second control circuit and the guide rollers, are identical to the corresponding parts of the arrangement according to FIG. 2 and have been omitted for reasons of simplification.

Landscapes

  • Replacement Of Web Rolls (AREA)

Claims (12)

1. Procédé pour enrouler une bande de matière (2) sur un mandrin de bobinage dans un poste de bobinage, et selon lequel on guide la bande avec un angle d'enroulement inférieur à 180° autour d'un cylindre presseur (5), qui s'applique contre un rouleau rotatif de la bande, caractérisé en ce qu'on mesure en permanence la force de traction Fb dans la bande de matière et qu'on l'ajoute à une force de pression prédéterminée Fp, avec laquelle le cylindre presseur est appliqué contre le rouleau, pour obtenir une force F, avec laquelle le cylindre presseur est repoussé contre le rouleau.
2. Procédé selon la revendication 1, caractérisé en ce qu'on maintient constant le couple de rotation Md du rouleau.
3. Procédé selon la revendication 1, caractérisé en ce que le couple de rotation Md du rouleau varie en fonction du temps.
4. Procédé selon la revendication 1, 2 ou 3, caractérisé en ce qu'on mémorise la variation dans le temps du couple de rotation Md dans un circuit de régulation.
5. Dispositif pour enrouler une bande de matière sur un mandrin de bobinage dans un poste de bobinage, dans lequel la bande de matière est rapprochée d'un rouleau rotatif, par un cylindre presseur (5) et est guidée autour du cylindre presseur avec un angle d'enroulement inférieur à 180°, caractérisé en ce qu'en amont du cylindre presseur (5) dans la direction d'enroulement de la bande de matière (2) se trouve installé un cylindre de mesure (6), sur lequel circule la bande de matière (2) et qui sert à mesurer la force de traction Fb dans la bande de matière (2), et que le force Fb mesurée est ajoutée à la force de serrage prédéterminée Fp, qui agit au niveau du point (A) de contact entre le cylindre presseur (5) et le rouleau (3) du poste de bobinage (9), et que la somme des deux forces Fb, Fp fournit la force F, avec laquelle le cylindre presseur (5) est appliqué contre le rouleau (3) (figure 2).
6. Dispositif selon la revendication 5, caractérisé en ce que le cylindre de mesure (6) est monté sur des boîtes dynamométriques (7), qui sont disposées sur un support (8).
7. Dispositif suivant les revendications 5 et 6, caracatérisé par le fait que l'angle d'enroulement de la bande de matière (2) autour du cylindre presseur (5) est égal à 900.
8. Dispositif selon la revendication 5, caractérisé en ce que le cylindre presseur (5) est fixé à l'ex- témité inférieure d'un support (12), qui est relié au piston d'un vérin (13), dont la pression du fluide est réglée par le signal de sortie d'un premier circuit de régulation (14), dans lequel le signal électrique, correspondant à la force Fb mesurée, des boîtes dynamométriques (7) est introduit, signal auquel est ajouté un signal électrique équivalent à la force de serrage prédéterminé Fp du cylindre presseur (5), pour former le signal de sortie.
9. Dispositif selon la revendication 7, caractérisé en ce qu'il est prévu un second circuit de régulation (15), auquel le signal électrique, correspondant à la force mesurée Fb, des boîtes dynamométriques (7) est envoyé et dans lequel ce signal est comparé à un signal variable dans le temps ou constant, qui est calculé à partir de la valeur de consigne du couple de rotation Md, et que le signal de sortie du second circuit de régulation (15) règle le couple de rotation Md de la bobine (3) et par conséquent, par l'intermédiaire de la tension de traction exercée sur la bande de matière (2), la force Fb de manière que la valeur réelle du couple de rotation soit égale à la valeur de consigne prédéterminée du couple de rotation.
10. Dispositif selon la revendication 5, caractérisé en ce que le poste de bobinage (9) est un dispositif de bobinage simple.
11. Dispositif selon la revendication 5, caractérisé en ce que le poste de bobinage (9) est un dispositif d'enroulement double ou triple à retournement.
12. Dispositif selon la revendication 8, caractérisé en ce que le vérin (13) est un vérin pneumatique ou un vérin hydraulique.
EP86110041A 1985-07-30 1986-07-22 Procédé et dispositif pour enrouler une bande Expired - Lifetime EP0211313B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3527178 1985-07-30
DE19853527178 DE3527178A1 (de) 1985-07-30 1985-07-30 Verfahren und vorrichtung zum aufwickeln einer materialbahn

Publications (3)

Publication Number Publication Date
EP0211313A1 EP0211313A1 (fr) 1987-02-25
EP0211313B1 true EP0211313B1 (fr) 1989-04-19
EP0211313B2 EP0211313B2 (fr) 1992-07-01

Family

ID=6277106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110041A Expired - Lifetime EP0211313B2 (fr) 1985-07-30 1986-07-22 Procédé et dispositif pour enrouler une bande

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EP (1) EP0211313B2 (fr)
DE (2) DE3527178A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3629217C2 (de) * 1986-08-28 1994-08-11 Brueckner Trockentechnik Gmbh Vorrichtung zum Aufwickeln und Querschneiden einer breitgeführten Warenbahn
US5190232A (en) * 1990-11-13 1993-03-02 E. I. Du Pont De Nemours And Company Wind-up lay-on-roll apparatus
DE4104635B4 (de) * 1991-02-15 2005-11-10 Mülfarth, Werner Vorrichtung zum Aufrollen von bahn- oder bandförmigen Materialien
DE4116081C2 (de) * 1991-05-16 1995-02-23 Brueckner Maschbau Regelverfahren zur Erzielung einer entsprechend vorwählbaren Wickeldichte, insbesondere relativen Wickeldichte sowie eine zugehörige Vorrichtung
CH686885A5 (de) * 1993-11-26 1996-07-31 Anton Ruegg Verfahren und Vorrichtung zum Aufwickeln von bahnfoermigem Material.
FI104161B1 (fi) * 1998-02-17 1999-11-30 Valmet Corp Menetelmä ja laitteisto rainan rullauksessa
ITMI20110691A1 (it) * 2011-04-22 2012-10-23 Biessse Equipment Solutions S R L Apparecchiatura per garantire la tenuta nella stampa flexo dei fotopolimeri applicati con nastro adesivo sulle sleeve.
CN115557298B (zh) * 2022-10-18 2023-05-09 灵宝宝鑫电子科技有限公司 一种电解铜箔一体机收卷压辊组件及压辊工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2101121A1 (de) * 1971-01-12 1972-08-03 Doll A Aufwickelvorrichtung mit Reihenschlußmotor für hohe Zugkraftkonstanz
DE2540947A1 (de) * 1975-09-13 1977-04-14 Kroenert Max Maschf Vorrichtung zum aufwickeln laufender bahnen
DE3347733A1 (de) * 1983-12-31 1985-11-07 Lenze GmbH & Co KG Aerzen, 3258 Aerzen Kontaktwalzensteuerung fuer aufwickelvorrichtung

Also Published As

Publication number Publication date
DE3662867D1 (en) 1989-05-24
EP0211313A1 (fr) 1987-02-25
DE3527178A1 (de) 1987-02-12
EP0211313B2 (fr) 1992-07-01

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