Resin molding die

Details Resin molding die Resin molding die

1988-06-08

1989-04-25

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

Shaping surface including means to release or remove product...

Removal-miscellaneous

249 67, 249160, 264161, 425289, 425554, 425443, 425444, 425219, B29C 3930, B29C 4538

Patent

active

048243582

ABSTRACT:
A rotary block having a gate is rotatably mounted within either one of stationary or movable die plates so that the gate forms a resin passage interconnected to a molding cavity in the stationary die plate in the mold closing state. A gate slug which is inevitably formed on a molded article in injection molding can effectively be cut off by rotating the rotary block so as to intercept the resin passage before a mold opening process.

REFERENCES:
patent: 2524858 (1950-10-01), Thomas
patent: 3575233 (1971-04-01), Mahle
patent: 3724802 (1973-04-01), Veneria
patent: 3904165 (1975-09-01), Den Boer
patent: 3989436 (1976-11-01), McNeely et al.

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