EP2000429B1 - Verfahren zum Aufrollen einer Plastikfolie, um eine Spule herzustellen, Vorrichtung zur Umsetzung des Verfahrens und so erhaltene Spule - Google Patents

Verfahren zum Aufrollen einer Plastikfolie, um eine Spule herzustellen, Vorrichtung zur Umsetzung des Verfahrens und so erhaltene Spule Download PDF

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Publication number
EP2000429B1
EP2000429B1 EP20080305213 EP08305213A EP2000429B1 EP 2000429 B1 EP2000429 B1 EP 2000429B1 EP 20080305213 EP20080305213 EP 20080305213 EP 08305213 A EP08305213 A EP 08305213A EP 2000429 B1 EP2000429 B1 EP 2000429B1
Authority
EP
European Patent Office
Prior art keywords
tube
winding
film
air
coil
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.)
Not-in-force
Application number
EP20080305213
Other languages
English (en)
French (fr)
Other versions
EP2000429A1 (de
Inventor
Patrick Gennesson
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2000429A1 publication Critical patent/EP2000429A1/de
Application granted granted Critical
Publication of EP2000429B1 publication Critical patent/EP2000429B1/de
Not-in-force legal-status Critical Current
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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2292—Removing cores or mandrels from web roll after winding
    • 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
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/418—Changing web roll
    • B65H2301/4181—Core or mandrel supply
    • B65H2301/41818—Core or mandrel supply mandrels circulating (cycling) in machine or system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed

Definitions

  • the invention relates to the technical sector of the treatment of materials, including plastics.
  • the invention relates to the production of coils of a plastic film.
  • the coil obtained has a cardboard tube which acts as a mandrel on which is wound, in variable diameters and lengths, the film plastic.
  • the coil has a mandrel most often formed by a cardboard tube, as indicated.
  • This cardboard tube is necessary, not only for the winding of the plastic film, but also for the holding of the coil at the time of its use and / or its subsequent handling by means of, for example, an unwinding apparatus.
  • this cardboard tube has many disadvantages.
  • this carton significantly increases the cost of the coil. It is also necessary to have at the place of manufacture of the reels, a large stock of tubes requiring a large storage location, and therefore significant investments. Finally, it is appropriate to manage the waste resulting from the use of the reels, since after having completely unwound the reel, the cardboard tube is not reusable.
  • the 360 cardboard tubes represent waste with a weight and volume of 144 Kg and a cost of 63 €.
  • the object of the invention is to remedy these disadvantages in a simple, safe, effective and rational manner.
  • the problem to be solved by the invention is to no longer use cardboard tube to perform the winding operation as such, with the possibility of shipping reels of plastic film no longer having this tube of cardboard, and more generally no support mandrel.
  • Another problem to be solved by the invention is to be able to use a machine of coiling type, in accordance with that commonly used by a person skilled in the field of winding, without making significant changes, but simple adjustments.
  • the device comprises a winding tube of rigid material shaped to cooperate, after winding of the film, with a pneumatic jack adapted to exert a thrust force and to send air under pressure, so as to create a cushion or an air film at the periphery of said tube for its ejection so as to form a coil without mandrel.
  • the winding tube delimits an internal recess in communication, on the one hand, with the outside by a plurality of microperforations formed at the periphery of said tube and, on the other hand, with an internal centering span. shaped to receive, in a sealed manner, the piston head connected to a compressed air compressor.
  • the internal centering surface is formed at one of the ends of the tube and is in communication with the internal chambering of said tube and with an internal channel of the head and the piston rod for the injection of air.
  • the piston head peripherally has arrangements capable of sealing after introduction of the centering bearing.
  • the arrangements consist of at least one O-ring.
  • the tube is made of a non-deformable rigid material, in particular steel.
  • the plastic film reel obtained has a completely free and smooth bore adapted to receive, at the time of use, at least one handling tip.
  • the method according to the invention uses a machine of the coiling type essentially comprising, in a known manner, a mother reel (B) of the considered plastic film (F) which is unwound, via different removals and drives, for make the coil, the cardboard tube (T) ( figure 1 ) is replaced, according to the invention, by a rigid tubular support (1) in particular in the form of a steel tube or other dimensionally stable material.
  • the coil as such remains in the known manner.
  • the spool is equipped with the winding support (1) which is subjected to the action of a means (2) capable of ensuring its ejection so as to form a mandrel-free spool ( figure 5 ).
  • the winding support (1) is subjected to the action of a jack (2) whose piston head (2a) cooperates with an end of said support for its ejection in combination with the formation of an air film to create an air cushion at the outer periphery of said support.
  • the support (1) is constituted by a steel tube.
  • the winding tube (1) defines an internal recess (1a) in communication with the outside by a plurality of microperforations (1b) formed at the periphery (1).
  • the internal recess (1a) is in communication, at one end of the tube (1), with an internal centering surface (1c).
  • the communication between the recess (1a) and the internal span (1c) is effected for example by means of a coaxial opening (1d).
  • the internal bearing (1e) is intended to receive, in a sealed manner, the head (2a) of the piston whose rod (2b) is in communication by an internal channel (2c) with a pneumatic unit (3) for the sending compressed air.
  • the end of the piston head (2a) peripherally has arrangements capable of sealing after insertion into the centering surface (1c).
  • these arrangements consist of at least one O-ring (4).
  • the appearance of the coil is therefore strictly identical to a coil equipped with a cardboard mandrel.

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)

Claims (7)

  1. Verfahren zum Aufwickeln eines Kunststofffilms, um eine Spule herzustellen, dadurch gekennzeichnet, dass:
    - der Film (F) auf ein Rohr (1) augewickelt wird, das vorübergehend als Aufwickeldorn dient;
    - Beaufschlagen des Rohrs (1), auf das der Film aufgewickelt ist, mit der Wirkung eines Stellzylinders (2), dessen Kolbenkopf (2a) auf dichte Weise mit einem Ende des Rohrs (1) zusammenwirkt, um es in Kombination mit einem Druckluftstoß, um am äußeren Umfang des Rohrs ein Luftkissen zu erzeugen, auszuwerfen, derart, dass eine Spule ohne Dorn gebildet wird;
    - erneutes Einführen des Rohrs in die Wicklungsmaschine für eine nachfolgende Aufwicklung.
  2. Vorrichtung für die Ausführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, dass sie ein Aufwickelrohr (1) aus einem starren Material umfasst, das dafür ausgelegt ist, nach dem Aufwickeln des Films mit einem Druckluftstellzylinder (2) zusammenzuwirken, der eine Schubkraft ausüben kann und Druckluft ausstoßen kann, derart, dass am Umfang des Rohrs (1) ein Luftkissen order ein Luftfilm erzeugt wird, um es auszuwerfen, um eine Spule ohne Dorn zu bilden.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das Aufwickelrohr (1) eine interne Vertiefung (1a) begrenzt, die einerseits mit der äußeren Umgebung über mehrere Mikroperforationen (1b), die im Umfang des Rohrs (1) gebildet sind, und andererseits mit einem inneren Zentrierungsbereich (1c), der dafür ausgelegt ist, auf dichte Weise den Kopf (2a) des mit einem Druckluftkompressor verbundenen Kolbens aufzunehmen, kommuniziert.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass der interne Zentrierungsbereich (1c) an einem der Enden des Rohrs (1) gebildet ist und mit der internen Vertiefung (1a) des Rohrs und mit einem internen Kanal des Kopfes und der Stange des Kolbens kommuniziert, um Luft einzuleiten.
  5. Vorrichtung nach den Ansprüchen 2 und 4, dadurch gekennzeichnet, dass der Kopf (2a) des Kolbens am Umfang Merkmale aufweist, die die Dichtigkeit nach der Einführung des Zentrierungsbereichs gewährleisten können.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Merkmale durch wenigstens eine Ringdichtung (4) gebildet sind.
  7. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das Rohr (1) aus einem nicht verformbaren, starren Material, insbesondere aus Stahl, verwirklicht ist.
EP20080305213 2007-06-06 2008-05-30 Verfahren zum Aufrollen einer Plastikfolie, um eine Spule herzustellen, Vorrichtung zur Umsetzung des Verfahrens und so erhaltene Spule Not-in-force EP2000429B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0755500A FR2917078B1 (fr) 2007-06-06 2007-06-06 Procede pour enrouler un film plastique en vue de realiser une bobine, le dispositif pour la mise en oeuvre du procede et la bobine obtenue.

Publications (2)

Publication Number Publication Date
EP2000429A1 EP2000429A1 (de) 2008-12-10
EP2000429B1 true EP2000429B1 (de) 2013-07-24

Family

ID=38442034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080305213 Not-in-force EP2000429B1 (de) 2007-06-06 2008-05-30 Verfahren zum Aufrollen einer Plastikfolie, um eine Spule herzustellen, Vorrichtung zur Umsetzung des Verfahrens und so erhaltene Spule

Country Status (2)

Country Link
EP (1) EP2000429B1 (de)
FR (1) FR2917078B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2026018151A1 (en) * 2024-07-16 2026-01-22 Valmet Tissue Converting S.P.A. An extractor for removing winding mandrels from logs of web

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB623155A (en) * 1947-04-22 1949-05-12 Dubilier Condenser Co 1925 Ltd Improvements in or relating to winding apparatus
US3131880A (en) * 1962-06-11 1964-05-05 Murray D J Mfg Co Web roll winder shaft stripper
US4030681A (en) * 1976-03-02 1977-06-21 Gloucester Engineering Co. Inc. Roll winder
US4384395A (en) * 1981-01-14 1983-05-24 Appleton Machine Company Core shaft puller
US4834609A (en) * 1988-04-13 1989-05-30 Bemis Company, Inc. Shaft handling device
US6047916A (en) * 1998-03-16 2000-04-11 Valmet-Karlstad Ab Reel-up and multi-functional handling device therefor
US6270034B1 (en) * 1999-12-22 2001-08-07 Kimberly-Clark Worldwide, Inc. Rewinder mandrel system for winding paper

Also Published As

Publication number Publication date
FR2917078A1 (fr) 2008-12-12
EP2000429A1 (de) 2008-12-10
FR2917078B1 (fr) 2009-12-25

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