Deflator for use in injection molding machine

Details Deflator for use in injection molding machine Deflator for use in injection molding machine

1987-03-16

1988-02-02

Lin, Kuang Y.

Metal founding

Means to shape metallic material

Pressure shaping means

164410, 425420, 425812, B22D 1720

Patent

active

047223855

ABSTRACT:
A deflator for injection molding in a cavity. Two exhaust passages connect the cavity to a detection valve and an exhaust valve, which is being pumped. The exhaust passages are arranged so that the molten metal reaches the detection valve before the exhaust valve. Closing of the detection valve triggers the pneumatic closing of the exhaust valve. Also included in the invention is a bounce reduction means for the exhaust valve and a rockable connection for approaching the deflator to the mold.

REFERENCES:
patent: 4489771 (1984-12-01), Takeshima et al.

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