Multi-injection molding machine for molding a multi-injection bo

Details Multi-injection molding machine for molding a multi-injection bo Multi-injection molding machine for molding a multi-injection bo

1989-07-17

1991-06-25

Heitbrink, Timothy

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

2643287, 2643288, 26432811, 425130, 425134, 425572, 425574, B29C 4516

Patent

active

050262653

ABSTRACT:
A multi-injection molded body made of at least a first and a second resin is molded, an undercut is formed generally by pressing a part of the surface about an aperture opening formed in a first molded body made of the first resin to project interior side wall faces of the aperture inward, and injecting a second resin to mold a second molded body in the aperture. The multi-injection molded body thus formed has an undercut in the aperture, so that the second molded body is tightly fixed to the first molded body. A multi-injection molding machine for producing the first and second molded bodies is also provided.

REFERENCES:
patent: 3807920 (1974-04-01), Aoki

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