Injection molding die for producing plastic filter

Details Injection molding die for producing plastic filter Injection molding die for producing plastic filter

1995-02-23

1997-07-22

Nguyen, Khanh P.

Plastic article or earthenware shaping or treating: apparatus

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

With coupling between charger and mold

425570, 425572, 2643288, 26432812, B29C 4527

Patent

active

056501811

ABSTRACT:
A meshed plastic filter of a narrow-pitch net including a net and a frame in a unitary body is produced in either a square or a circular overall shape, and has diverse applications, such as a filter or sieve for gasoline or oil, a dust collector filter and other various filtration. A precision die has developed for producing such a meshed fabric plastic filter. The precision die has grooves called dam/discharge rib grooves radiating from the die center for guiding and pressuring the injected material and the vertical and horizontal rib grooves existing in horizontal and vertical directions for forming the net, so that gas retention inside the die is prevented and the material sneaks uniformly into the vertical and horizontal rib grooves and a frame groove through the dam/discharge rib grooves.

REFERENCES:
patent: 3873656 (1975-03-01), Garner
patent: 5094602 (1992-03-01), Morita
patent: 5103513 (1992-04-01), Schad et al.
patent: 5167896 (1992-12-01), Hirota et al.

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