Multi-cavity injection molding apparatus splitting melt near noz

Details Multi-cavity injection molding apparatus splitting melt near noz Multi-cavity injection molding apparatus splitting melt near noz

1999-03-23

2000-12-19

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means between charger and mold to cut off flow of...

425564, B29C 4522

Patent

active

061620440

ABSTRACT:
Valve gated injection molding apparatus having several valve pins (62) extending through each heated nozzle (12) driven by a common actuating mechanism (70). A valve bushing (100) is seated in the front end (96) of each heated nozzle (12). A central melt bore (50) in each heated nozzle (12) splits in the valve bushing (100) near the front end of the heated nozzle (12) from where the melt flows around each of the valve pins (62) to the gates (66).

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