Mechanism for forming threads in injection molded parts

Details Mechanism for forming threads in injection molded parts Mechanism for forming threads in injection molded parts

1984-07-26

1986-01-21

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

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

With coupling between charger and mold

264318, 425571, 425582, 425583, B29C 4526, B29C 4533

Patent

active

045655189

ABSTRACT:
A mechanism for forming threads in injection molded parts includes a core member having a threaded end which is moved into and out of a mold cavity. The core member is slidably and rotatably mounted on a support and is driven by a motor through a first lost motion rotatable connection. The core member is moved linearly upon rotation thereof into the mold cavity by a lead screw member which is coupled to the core member through a second lost motion connection and threadably mounted in the support.

REFERENCES:
patent: 1916692 (1933-07-01), Scribner
patent: 2408629 (1946-10-01), Green
patent: 3018519 (1962-01-01), Morin et al.
patent: 3247548 (1966-04-01), Fields et al.
patent: 3584092 (1971-06-01), Alexandris

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