Apparatus for making multi-segment plastic components

Details Apparatus for making multi-segment plastic components Apparatus for making multi-segment plastic components

1995-05-01

1997-01-07

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

Mold having movable core or movable pin

249 59, 249 62, 249184, 425DIG12, 425DIG58, B29C 3352

Patent

active

055914667

ABSTRACT:
A core ring assembly for use in production of a plastic injection-molded component is formed by injecting molten metal alloy into core dies to produce two intricately shaped ring type elements--one male, one female. Removing the male and female ring elements from the core dies and combining the two elements in an assembly machine to form a uniform, geometrically symmetrical, integral core ring assembly. The core ring assembly is transported to a plastic molding machine for overmolding the core ring assembly with either thermosetting or thermoplastic material. Then, the core assembly is melted out from the plastic component in a hot oil bath or induction melt-out, and the molten alloy recovered thereby is returned to a molten metal alloy tank for reuse.

REFERENCES:
patent: 546879 (1895-09-01), Dyson et al.
patent: 2133019 (1938-10-01), Campbell
patent: 3189671 (1965-06-01), Babb
patent: 4243199 (1981-01-01), Hill
patent: 4871505 (1989-10-01), Lapeyre
patent: 4958675 (1990-09-01), Kidd
patent: 5173237 (1992-12-01), Kidd
patent: 5257922 (1993-11-01), Vansnick et al.

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