Film supply apparatus and filling and packaging system...

B - Operations – Transporting – 65 – B

Patent

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Details

B65B 41/12 (2006.01) B65B 9/20 (2006.01) B65H 19/18 (2006.01)

Patent

CA 2675098

A film feeding device (2) has two film holders (22a, 22b) for supporting two rolled films as a use side film (101) and a standby side film (100), respectively; a feeding roller (13) for paying out the use side film (101); a film pressing member (34) for holding the starting end of the standby side film (100); a suction device (36) for pulling back the standby side film (100) to the upstream side in a pay out direction; and a heater bar (31) for fusion bonding the two films (100, 101). The suction device (36) sucks and holds the film (100) and pulls it back to a position where the starting end of the film (100) faces the heater bar (31).

La présente invention concerne un dispositif d'avancement de films (2) comportant deux conteneurs à film (22a, 22b) accueillant chacun un film en rouleaux, l'un comme film côté utilisation (101) et l'autre comme film côté attente (100). Le dispositif d'avancement comprend également un galet d'avancement (13) pour débiter le film côté utilisation (101), un élément appuyant sur le film pour maintenir l'extrémité de début du film côté attente (100), un dispositif d'aspiration (36) pour tirer en arrière le film côté attente (100) en direction du côté amont dans un sens de débit, et une barre chauffante (31) pour la liaison par fusion des deux films (100, 101). Le dispositif d'aspiration (36) aspire et maintient le film (100) puis le tire en arrière vers une position où l'extrémité de début du film (100) fait face à la barre chauffante (31).

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