Tight pitch nozzle with individual valve gate control

Details Tight pitch nozzle with individual valve gate control Tight pitch nozzle with individual valve gate control

2007-03-20

2007-03-20

Del Sole, Joseph S. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

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

With coupling between charger and mold

C425S130000, C425S564000, C425S573000

Reexamination Certificate

active

10700521

ABSTRACT:
An injection molding system is disclosed. The system includes a multiple valve gated nozzle. The flow through each valve gate is determined by individually operated valve pins. Each valve pin is independently controlled by a separate actuation unit. In order to achieve a tight pitch between the valve pins, the actuation units are placed in a stacked configuration, with the valve pin controlled by the upper actuation unit passing through the lower actuation unit. The valve pin of the lower actuation unit is offset from a center of the upper actuation unit to allow for the unimpeded passage of the valve pin from the upper actuation unit through the lower actuation unit.

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