Injection molding nozzle insert with valve member locating blade

Details Injection molding nozzle insert with valve member locating blade Injection molding nozzle insert with valve member locating blade

1993-04-26

1994-08-02

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

With means to heat or cool

2643289, 26432812, 425564, 425566, B29C 4523

Patent

active

053340086

ABSTRACT:
Injection molding apparatus for valve gating in which the valve member extends through a locating insert mounted at the front end of the nozzle. The locating insert has a pair of spiral blades extending inwardly from an outer collar. The spiral blades have curved inner edges which encircle the valve member sufficiently to maintain the valve member in accurate alignment with the gate as it reciprocates between the open and closed positions.

REFERENCES:
patent: 4266723 (1981-05-01), Osuna-Diaz
patent: 4303382 (1981-12-01), Gellert
patent: 5022846 (1991-06-01), Schmidt
D-M-E brochure OVG2 entitled "D-M-E/OSCO Valve Gate Runnerless Molding Systems".

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