B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 51/18 (2006.01) B65B 17/02 (2006.01) B65B 53/02 (2006.01) B65D 71/50 (2006.01)
Patent
CA 2261623
A can capping method comprises the following operational stages: a film of thermoformable plastic material (9) is heated and placed on the upper portion (11) of a group of cans comprising at least one can (10), the film is made to adhere by mechanical means to the surface of said upper portion in correspondence with a closed line, to define a closed chamber in combination with said upper portion; the air is extracted from said chamber; the film surface is made to adhere completely to said upper portion; that film portion adhering completely to the upper portion of the group of cans is separated from the rest of the film; said film being heated to a suitable temperature such that the film, on shrinking as a result of cooling, remains adhering to the surface of said upper portion and retains its shape.
Un procédé permettant de recouvrir des boîtes comprend les étapes suivantes: on chauffe un film de matériau plastique thermoformable (9) et on le pose à la partie supérieure (11) d'un groupe de boîtes comprenant au moins une boîte (10); on colle le film par un système mécanique à la surface de ladite partie supérieure en le faisant correspondre à une ligne fermée, de façon à définir une chambre fermée associée à ladite partie supérieure; on fait sortir l'air de ladite chambre; on colle complètement la surface du film sur ladite surface supérieure; on sépare du reste du film ladite partie de film complètement collée à la partie supérieure du groupe de boîtes; on chauffe ledit film à une température appropriée, de façon qu'après s'être rétracté sous l'effet du refroidissement, il reste collé à la surface de ladite partie supérieure et garde sa forme.
Bantam Engineers Limited
Robic
LandOfFree
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