Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Mold motion or position control
Patent
1991-09-06
1993-08-24
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, 425167, 425169, 4254519, 425590, B29C 4580
Patent
active
052383830
ABSTRACT:
A mold opening controller for injection molding machines, having a control unit for controlling the hydraulic circuit. The control unit having a setter for setting acceleration/deceleration functions of a movable portion such as the movable mold; a data input for the setter; an operational unit for calculating the acceleration/deceleration of portions of the movable mold and the acceleration/deceleration speeds at each moving position at the time of the acceleration/deceleration on the bases of data from the setter and the data input; a position sensor for detecting the moving position of the movable mold; and a control for controlling the hydraulic circuit so that acceleration/deceleration positions of the movable mold and its moving speed at each position correspond to the output values of the operational unit through the position sensor.
REFERENCES:
patent: 3857658 (1974-12-01), Muzsnay
patent: 4696632 (1987-09-01), Inaba
patent: 4855095 (1989-08-01), Sato
patent: 4917840 (1990-04-01), Harada et al.
Heitbrink Tim
Toshiba Machine Co. Ltd.
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