B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 18/00 (2006.01) B65H 18/14 (2006.01) B65H 18/26 (2006.01)
Patent
CA 2367687
The invention relates to a method for winding a web, said method comprising the steps of winding a web roll (11) by passing the web onto a core (12) or the like via a pressure nip (N) formed between a winding drum (10) and the roll (11), whereby the core (12) or the like element is supported by means of chucks (14) or the like mounted on roll support arms (13). In the method, the pressing-nip force in the nip (N) formed between the roll (11) and the winding drum (10) is controlled using a position-feedback technique in which the movements of the roll support arms (13) are synchronized. The invention also relates to a device for winding a web, said device being intended for use in conjunction with winding a web roll (11) onto a core (12) or the like via a pressure nip (N) formed between a winding drum (10) and the roll (11), whereby the core (12) or the like element is supported by means of chucks (14) or the like mounted on roll support arms (13). The device includes means (15, 16, 17, 18, 19, 20, 21, 22) for controlling the pressing-nip force in the nip (N) formed between the roll (11) and the winding drum (10) using a position-feedback technique in which the movements of the roll support arms (13) are synchronized.
L'invention porte sur un procédé d'enroulement d'une bande consistant à former un rouleau (11) en faisant passer la bande sur une âme (12) ou analogue via un point de contact (N) formé entre un cylindre (10) et le rouleau (11). L'âme (12) ou l'élément analogue est supportée au moyen de mandrins (14) ou analogue montés sur des bras (13) de support du rouleau. Dans ce procédé, la force du point de contact (N) formé entre le rouleau (11) et le cylindre (10) est commandée selon une technique de retour de position dans laquelle les mouvements des bras (13) de support du rouleau sont synchronisés. L'invention porte également sur un dispositif d'enroulement d'une bande destiné à être utilisé lors de la formation d'un rouleau (11) de bande sur une âme (12) ou analogue passant par un point de contact (N) formé entre un cylindre (10) d'enroulement et le rouleau (11), l'âme ou l'élément analogue étant supportée au moyen de mandrins (14) ou analogue montés sur des bras (13) de support du rouleau. Le dispositf comprend des organes (15, 16, 17, 1q8, 19, 20, 21, 22) permettant de commander la force du point de contact (N) formé entre le rouleau (11) et le cylindre (10) d'enroulement selon une technique de retour de position dans laquelle les mouvements des bras (13) de support du rouleau sont synchronisés.
Metso Paper Inc.
Sim & Mcburney
LandOfFree
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