Needle valve nozzle for injection molds and valve needle

Details Needle valve nozzle for injection molds and valve needle Needle valve nozzle for injection molds and valve needle

1997-03-24

1998-12-22

Ryan, Patrick

Plastic article or earthenware shaping or treating: apparatus

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

With means between charger and mold to cut off flow of...

2643289, 425549, 425566, 425568, B29C 4523

Patent

active

058515712

ABSTRACT:
A needle valve nozzle (1) with injection mold (2) has a channel (11) for injection molding of flat workpieces form its narrow side. The channel (11) lies in the interior of the valve needle (10) belonging to the nozzle and extends over a partial longitudinal region of this valve needle (10). The channel (11) has an inlet (12) in the interior of the housing (6) of the needle valve nozzle (1) and at least one lateral exit (13) at an outlet before the free end (10a) of the valve needle (10) facing the injection mold (2), so that the open position of the needle valve nozzle provided for injection molding is reached by pushing the valve needle (10) with this exit (13) so far out of the housing (6) that the lateral exit (13) comes to lie at the level of the mold or cavity to be filled, while for the closed position, the valve needle (10) with this exit (13) can be retracted into the housing (6).

REFERENCES:
patent: 4521179 (1985-06-01), Gellert
patent: 4925384 (1990-05-01), Manner
patent: 5049062 (1991-09-01), Gellert
patent: 5162125 (1992-11-01), Akselrud et al.
patent: 5324190 (1994-06-01), Frei
patent: 5324191 (1994-06-01), Schmidt

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