Apparatus for supervising injection stroke of injection molding

Details Apparatus for supervising injection stroke of injection molding Apparatus for supervising injection stroke of injection molding

1985-12-24

1988-04-26

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Molding pressure control means responsive to pressure at...

264 407, 364185, 364473, 364476, 425170, 425171, B29C 4577

Patent

active

047401486

ABSTRACT:
An apparatus for supervising an injection stroke of an injection machine of the type wherein injection parameters are detected at a number of points in a filling stroke, and detected parameters are sequentially sampled at a plurality of points over the entire filling stroke, the filling stroke is divided into a plurality of regions, and the injection parameters measured in respective divided regions are judged as to whether the parameters can produce satisfactory products or not. Such parameters are used as reference values and sequentially sampled parameters are subtracted by the reference values. The differences are accumulated for respective regions and when accumulated differences exceed predetermined permissible values an alarm signal is issued.

REFERENCES:
patent: 4066725 (1978-01-01), Boettner
patent: 4146601 (1979-03-01), Bishop
patent: 4325896 (1982-04-01), Rodgers, Jr.

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