Method of both single and double injection molding

Details Method of both single and double injection molding Method of both single and double injection molding

1991-02-14

1993-02-02

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Forming plural articles

2643288, 26432811, 425572, 425574, 425588, B29B 1108, C29C 4507, C29C 4510

Patent

active

051836211

ABSTRACT:
Single and double injection molding using a single molding machine is made possible by providing two injection units, each having an injection nozzle, and a stationary platen three insertion holes into which the nozzles can fit. For double injection, the injection units are moved transversely of the stationary platen so as to orient both injection nozzles with a respective one of the insertion holes. For single injection, the injection units again are moved transversely of the stationary platen so as to orient one of the injection nozzles with one of the insertion holes, with the other nozzle not being so oriented.

REFERENCES:
patent: 4588365 (1986-05-01), Holzschuh
patent: 5052915 (1991-10-01), Schad et al.

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