Package wrapping method and machine

Details Package wrapping method and machine Package wrapping method and machine

B - Operations, Transporting

65

B

B65B 11/54 (2006.01) B65B 35/24 (2006.01) B65B 41/14 (2006.01)

Patent

CA 2343804

The invention provides an improved package wrapping machine which produces a wrapped product having a good seal and a favorable appearance for packages of varying sizes and shapes. More particularly, these improvements are obtained by utilizing a novel film gripper (112) having sections (101A, B, C) that are separately disengageable to release tension on lateral sections of the film web during the wrapping of smaller than average packages, thereby preventing unwanted stretching of the film so as to promote a good seal for the packaged goods and avoid the formation of unsightly film tails. Also in a preferred embodiment of the present invention, a novel package pusher (108) is utilized to convey the package to be wrapped from a package infeed location to a registration position on the package wrapping elevator (118).

L'invention porte sur une emballeuse améliorée de paquets produisant des paquets emballés bien enveloppés, d'aspect agréable et de taille et de formes diverses. Ces améliorations sont plus particulièrement obtenues par l'utilisation d'un nouveau préhenseur présentant des parties dégageables séparément pour relâcher la tension s'exerçant sur les bords de la bande du film lors de l'emballage de paquets plus petits que la normale. Cela empêche l'étirage non intentionnel du film et évite la formation de bouts de films peu esthétiques. La version préconisée de l'invention recourt à un nouveau poussoir de paquets convoyant le paquet à emballer de son lieu d'apport à une position de calage dans l'élévateur d'emballage des paquets.

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