Injection moulding device

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 45/74 (2006.01) B29C 45/53 (2006.01) B29C 45/58 (2006.01)

Patent

CA 2242372

The invention concerns an injection moulding device which has an injection unit comprising an injection cylinder and an injection piston travelling inside it. The injection cylinder can be filled via a filling channel arranged in the injection piston and can be emptied via an outlet opening in the injection cylinder. An opening in the filling channel is spat sally and/or thermally separated from the out let opening. Thus there exists the possibility of the complete vulcanization of the material in the outlet opening.

L'invention concerne un dispositif de moulage par injection comportant une unité d'injection (1) comprenant un cylindre d'injection (20) et un piston d'injection (10) se déplaçant à l'intérieur de celui-ci. Le cylindre d'injection peut être rempli par l'intermédiaire d'un canal de remplissage (12) situé dans le piston d'injection et peut être vidé par l'intermédiaire d'un orifice de sortie (24) dans le cylindre d'injection. Une ouverture (14) du canal de remplissage (12) est séparée spatialement et/ou thermiquement de l'orifice de sortie (24). Le matériau peut ainsi être complètement vulcanisé dans l'orifice de sortie.

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