Modular unscrewing mold apparatus

Details Modular unscrewing mold apparatus Modular unscrewing mold apparatus

1990-07-09

1991-10-29

Heitbrink, Timothy

Plastic article or earthenware shaping or treating: apparatus

With apparatus assembly or dismantling means or with idle part

For extrusion or injection type shaping means

249 59, 249 63, 264318, 264334, 425556, 425809, 425DIG58, B29C 4544

Patent

active

050611682

ABSTRACT:
A modular unscrewing injection mold and core assembly therefor includes a mold base, a core receiving opening extending through the mold base, the core assembly being removably mounted in the core receiving opening and including first and second core shells that may be secured together to receive a rotating core therebetween; a mold core rotatably mounted between the shells; a pinion gear formed on the mold core for being driven by a rack in the mold base, for rotating the mold core; the core assembly being releasably secured in the base.

REFERENCES:
patent: 1944571 (1934-01-01), Rahm
patent: 2799049 (1957-07-01), Wilson
patent: 4618121 (1986-10-01), Conti
patent: 4776782 (1988-10-01), Murayama et al.

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