Injection-molding nozzle system for injection-molding...

Details Injection-molding nozzle system for injection-molding... Injection-molding nozzle system for injection-molding...

2007-05-01

2007-05-01

Heitbrink, Jill L. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

C264S328120, C425S562000, C425S564000, C029S426100, C029S428000

Reexamination Certificate

active

10461054

ABSTRACT:
The present invention relates to an injection-molding nozzle system for injection-molding systems for plastic materials which is equipped with a needle sealing system and is suitable both for different cavities as well as for plastic materials of different viscosities, with the injection-molding nozzle comprising a temperable nozzle body with nozzle tip comprising an outlet opening and an inlet opening for the plastic mass, as well as a needle which is arranged in the nozzle body and is displaceable in an axially longitudinal manner and with an actuating apparatus for actuating the needle which is axially displaceable in the nozzle body in the longitudinal direction. The opening stroke of the needle which is axially displaceable in the longitudinal direction can be adjusted by way of a stroke limiter, and the needle tip comprises at least one notch for the pass-through of the injection-molding mass in its transitional region to the needle shaft. The needle shaft is thereby in continual contact with a needle guide region of the nozzle tip.

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