B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 45/03 (2006.01) B29C 45/17 (2006.01) B29C 45/18 (2006.01) B29C 45/70 (2006.01)
Patent
CA 2084745
ABSTRACT INJECTING UNIT FOR USE IN AN INJECT ION MOLDING MACHINE An injecting unit for use in an injection molding machine comprises means for locking an axially movable plasticizing cylinder to a carrying block and for locking a feed screw to a motor for rotating the feed screw, which is adapted to be coupled to said motor in that the feed screw is inserted into a profiled coupling section of said motor. The feed screw is axially displaceable for injecting the plastic material. The plasticizing cylinder is adapted to be locked at a stop of the carrying block by means of screw threads, which are provided on the plasticizing cylinder and are centered on the longitudinal axis of said cylinder, and a nut, which is screwed on said screw threads and rotatable by drive means engaging the periphery of said nut. When the plasticizing cylinder has thus been locked, the feed screw is locked to said feed screw motor. As a result, the plasticizing cylinder and the feed screw can reliably be locked and unlocked by simple means, which can be automatically controlled.
Hehl Karl
Macrae & Co.
LandOfFree
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