Plastic film stretching apparatus

B - Operations – Transporting – 65 – H

Patent

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Details

B65H 23/04 (2006.01) B29C 55/18 (2006.01) B31B 1/02 (2006.01) B31B 1/74 (2006.01)

Patent

CA 2721569

A plastic film (2) is drawn in a different manner. A plurality of rollers (15a, 15b, 15c) are opposed to a base (14). The rollers are operated by a first drive mechanism (22), and the rollers are moved in the lateral direction of the plastic film. Second drive mechanisms (17a, 17b, 17c) act on the rollers, respectively. On the base, at least one roller is pressed against the plastic film, and at least one roller rolls along the plastic film. The plastic film is drawn by that roller.

Un film plastique (2) est étiré d'une manière différente. Une pluralité de rouleaux (15a, 15b, 15c) est opposée à une base (14). Les rouleaux sont actionnés par un premier mécanisme d'entraînement (22), et les rouleaux sont déplacés dans la direction latérale du film plastique. De seconds mécanismes d'entraînement (17a, 17b, 17c) agissent sur les rouleaux, respectivement. Sur la base, au moins un rouleau est comprimé contre le film plastique, et au moins un rouleau roule le long du film plastique. Le film plastique est étiré par ce rouleau.

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