Core pin arrangement and method for injection molding

Details Core pin arrangement and method for injection molding Core pin arrangement and method for injection molding

1998-03-13

2000-06-13

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

2643289, 425564, 425810, B29C 4523

Patent

active

060745932

ABSTRACT:
An arrangement and method for mounting a core pin for an injection molding a part, includes mounting a core pin in a cavity plate to extend upwardly through the cavity and into an opening in one end of a valve sleeve operated to control melt injection through a gate in a heated injection nozzle. The core pin moves away from the injection nozzle when the cavity plate is separated to remove the part.

REFERENCES:
patent: 2613395 (1952-10-01), Massler
patent: 4394117 (1983-07-01), Taylor
patent: 4405540 (1983-09-01), Mayer
patent: 5068065 (1991-11-01), Maus et al.
patent: 5324190 (1994-06-01), Frei
patent: 5460763 (1995-10-01), Asai
patent: 5545365 (1996-08-01), Asai
patent: 5785915 (1998-07-01), Osuna-Diaz

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