Web rewinding machine, adaptable to different core diameters

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 19/30 (2006.01) B65H 19/22 (2006.01) B65H 19/26 (2006.01)

Patent

CA 2192992

A rewinding machine for the formation of logs (L) of web material (N) wound on a core (A) comprises: a first winding roller (15) around which the web material (N) is run; a second winding roller (17) forming, together with the first winding roller (15), a nip (19); means of feeding the web material into the said nip (19); insertion means (89) to insert a core (A) on which the web material (N) is to be wound; and, before the said nip (19), with respect to the direction of advance of the web material (N), a deformable or oscillating rolling surface (33) forming, together with the means of feeding the web material (N), a channel (39) into which the core (A) is inserted; and a means (73) of interrupting the web material (N), interacting with the said means of feeding the web material (N) in an intermediate position along the said channel (39), between the point of insertion of the new core and the said nip (19).

Rebobineuse destinée à la formation de rouleaux (L) d'un matériau en bande (N) enroulé sur un mandrin (A), comprenant: un premier cylindre d'enroulement (15), autour duquel le matériau en bande (N) est amené à passer; un second cylindre d'enroulement (17) formant un étranglement (19) avec le premier cylindre (15); des moyens d'introduction du matériau en bande dans ledit étranglement (19); des moyens d'insertion (89) permettant d'insérer un mandrin (A) sur lequel ledit matériau (N) doit être enroulé; et, en amont dudit étranglement (19), par rapport au sens de progression du matériau en bande (N), une surface de roulement (33) déformable ou oscillante, formant, avec les moyens d'introduction du matériau en bande (N), un passage (39) dans lequel le mandrin (A) est introduit; ainsi que des moyens (73) d'arrêt dudit matériau (N), coopérant avec lesdits moyens d'introduction du matériau en une position intermédiaire le long dudit passage (39), entre le point d'insertion du nouveau mandrin et ledit étranglement (19).

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