Plasticizing device for e.g. injection molding machine, has inlet openings that are provided to introduce inert gas into feed zone, and housing openings that are gas-tightly closed during operation of plasticizing unit

摘要

The plasticizing device has a worm shaft (32) of the plasticizing screw (12) of the plasticizing cylinder (10) is led out to the rear direction of the drive unit (L,M) and is connected to a drive element (18) of the drive unit. A connection region (V) of the worm shaft and drive element is arranged in a separate housing or a housing portion (22a) of drive unit. The inlet openings (34b) are provided to introduce an inert gas into the feed zone of the plasticizing unit. The housing openings (50) are gas-tightly closed during operation of the plasticizing unit.