Device for stretching a film in an automatic product...

Details Device for stretching a film in an automatic product... Device for stretching a film in an automatic product...

B - Operations, Transporting

65

B

B65B 45/00 (2006.01) B65B 9/06 (2006.01) B65B 57/16 (2006.01)

Patent

CA 2423764

A device for stretching a film in an automatic product packaging machine, for products (12) of any thickness and size, spaced from each other at a pre-set distance, said device comprising a first conveyor belt (14) which feeds said products (12) to a second conveyor belt (19) combined with a wrapping film feeder (26, 28), an oscillating longitudinal sealer (34) and a transverse sealer (35) for sealing said film over said products (12), wherein said device further comprises a pair of drive rollers (25) for stretching said film (26) at the inlet of said second conveyor belt (19) and a cylinder (29) attached to a stem (32) fitted with an idle pressure roller (33) which engages said stretched film (26) on said second conveyor belt (19).

Un dispositif pour étirer une pellicule plastique dans une emballeuse automatique de produits, pour des produits (12) de n'importe quelles épaisseur et dimension, espacés les uns des autres d'une distance prédéterminée, lequel dispositif comprend un premier tapis roulant (14) qui achemine lesdits produits (12) vers un second tapis roulant (19) combiné à un distributeur de pellicule enveloppante (26, 28), une scelleuse longitudinale à impulsion (34) et une scelleuse transversale (35) pour sceller la pellicule par-dessus lesdits produits (12), et où ledit dispositif comprend aussi une paire de cylindres actifs (25) servant à étirer ladite pellicule (26) à l'entrée du deuxième tapis roulant (19) et un cylindre (29) fixé à une tige (32) pourvue d'un rouleau de pression libre (33) qui introduit la pellicule étirée (26) sur ledit deuxième tapis roulant (19).

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