Injection molding machine capable of reducing the work required

Details Injection molding machine capable of reducing the work required Injection molding machine capable of reducing the work required

1994-09-30

1996-07-30

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

Mold motion or position control

264 405, B29C 4580

Patent

active

055405770

ABSTRACT:
In an injection molding machine which comprises a mold composed of a fixed mold attached to a fixed platen and a movable mold attached to a movable platen, and a driving source for driving the movable platen to open and close the mold, a distance sensor detects, as a platen interval, a distance between two positions preliminarily selected on the fixed platen and the movable platen and produces a distance detection signal. A pressure sensor detects a clamping pressure applied by the driving source and produces a pressure detection signal. A control unit controls the driving source to adjust the platen interval and the clamping pressure through a plurality of steps in response to the distance detection signal and the pressure detection signal.

REFERENCES:
patent: 3857658 (1974-12-01), Muzsnay
patent: 3939329 (1976-02-01), Doran
patent: 3940465 (1976-02-01), Hauser et al.
patent: 4131596 (1978-12-01), Allen

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