Hot runner sliding nozzle

Details Hot runner sliding nozzle Hot runner sliding nozzle

1995-03-02

1996-04-16

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

26432815, B29C 4520

Patent

active

055076378

ABSTRACT:
The present invention relates to an improved nozzle-manifold assembly having utility in injection molding machines for making molded plastic articles. The nozzle assembly employs a clamp ring to apply a clamping force to the nozzle housing to cause it to mate with a manifold so as to prevent leakage of molten plastic material between the nozzle housing and the manifold. The clamp ring is mounted to the manifold by a plurality of screws whose tightening creates the desired clamping force and an effective seal between the nozzle housing and the manifold. The nozzle-manifold assembly also includes a centering ring for positioning the nozzle housing within a bore in a mold plate.

REFERENCES:
patent: 4588367 (1986-05-01), Schad
patent: 4793795 (1988-12-01), Schmidt et al.
patent: 4832593 (1989-05-01), Brown
patent: 4981431 (1991-01-01), Schmidt

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