Injection mold bushing

Details Injection mold bushing Injection mold bushing

F - Mech Eng,Light,Heat,Weapons

16

C

308/47

F16C 33/04 (2006.01) B29C 45/27 (2006.01)

Patent

CA 1091737

INJECTION MOLD BUSHING ABSTRACT OF THE DISCLOSURE An injection mold bushing which is mounted on the mold and is adapted for sprueless molding. The construction comprises an inner shank and an outer body between which is mounted a heating element for independently controlling the heat at each gate. The material passage is straight and centrally located, minimizing the likelihood of material collecting and degrading in the passage, and making it simple to clear this passage if material build-up occurs. The location of the heater and insulating construction around the bushing insures that the mold will be uniformly cool relative to the material, minimizing distortion of the molded parts.

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