Patent ID: 8276791
Filing Date: 2012-10-02
Classification: B29C

Abstract:
1. A feed hopper, comprising: a feeding duct; a guiding duct having a first lateral opening, the guiding duct communicating with the feed duct, the guiding duct further having a second lateral opening opposite to the first lateral opening; a sleeve movably wrapping around the guiding duct, the sleeve having a first lateral through hole for conforming with the first lateral opening, such that the plastic granules can be accessible via the guiding duct when the first lateral through hole is aligned with the first lateral opening, the sleeve further having a second lateral through hole conforming with the second lateral opening; an output duct extending from an outer surface of the sleeve in communication with the first lateral through hole; an introducing duct extending from the outer surface of the sleeve in communication with the second lateral through hole; and a pushing member comprising a piston movable in the introducing duct and a pushing shaft connected with the piston.