Multilayer injection molding machine and injection unit connecti

Details Multilayer injection molding machine and injection unit connecti Multilayer injection molding machine and injection unit connecti

1997-10-29

2000-06-13

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

425562, 425564, B29C 4513

Patent

active

060741902

ABSTRACT:
A multilayer injection molding machine manufactures a molded product formed of a plurality of layers of resins or colors by press fitting resins from a core layer injection unit and a skin layer injection unit to a cavity part formed by pressing and clamping a moving metal mold to a fixed metal mold fixed to a support member. The multilayer injection molding machine is formed by integrating a connecting device body interposed between the fixed metal mold and the support member so as to support the fixed metal mold to the support member and an injection unit connecting device provided on the connecting device body and having a plurality of resin passages allowing the cavity part to communicate with each injection unit.

REFERENCES:
patent: 4117955 (1978-10-01), Sokolow
patent: 4542054 (1985-09-01), Fillmann
patent: 4710118 (1987-12-01), Krishnakumar et al.
patent: 4715802 (1987-12-01), Arai
patent: 4946365 (1990-08-01), Kudert et al.

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