Controlled ejection method for injection molding

Details Controlled ejection method for injection molding Controlled ejection method for injection molding

1982-04-22

1983-12-27

Pavelko, Thomas P.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

425437, 425DIG102, B29C 700

Patent

active

044229984

ABSTRACT:
A method of controlled ejection of a molded product in relation to orientation, speed of ejection and/or sterility is disclosed. The method is not dependent on auxiliary moving parts or vulnerable pins or blades. The molded product is ejected into a substantially enclosed guide conduit where the contours of the conduit substantially are regions of the parting surface and the cavity/ies. The guide conduit may be fairly holeproof, whereby a very fast ejection may be accomplished when the molded product is transported in an air stream in a manner similar to a pneumatic dispatch, not necessarily in a downward direction. The molded product may be kept sterile while it is transported in a stream of sterile air.

REFERENCES:
patent: 3008181 (1961-11-01), Fitz
patent: 3128499 (1964-04-01), Smolenski
patent: 3634997 (1972-01-01), Tait
patent: 3852011 (1974-12-01), Maiocco
patent: 3910740 (1975-10-01), Rees
patent: 4118168 (1978-10-01), Rees

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