Injection control method of injection molding machine

Details Injection control method of injection molding machine Injection control method of injection molding machine

1986-04-07

1989-07-25

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Positioning of a mold part to form a cavity or controlling...

2643281, 425135, 425149, B29C 4576

Patent

active

048511706

ABSTRACT:
In an injection molding apparatus using a motor as a driving source, the injection speed and the injection pressure are controlled via a speed sensor, a pressure sensor and a closed loop control system, to provide higher accuracy and better operability during switching of the apparatus from an injection speed control phase to an injection pressure control phase and thereafter to a back pressure control phase.

REFERENCES:
patent: 4540359 (1985-09-01), Yamazaki

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