JPS55153612A - Predictive controller for working machine - Google Patents

Abstract

PURPOSE: To contrive the minimization of the thickness deviation of the worked product, by arranging the arithmetic unit for determining the work control value depending on the output of the detector for detecting thickness of the worked material, installed on the feeding side of the rolling mill, etc., and the control unit for giving above control value to the working system at a specified sampling pitch.

CONSTITUTION: The detector 3 for thickness of the worked material 2 is installed on the feeding side of the rolling roll 1, etc.; the output of the detector 3 is sent to the draft controller 6 through the arithmetic-memory gate 4, and the gap of the rolling roll 1 is controlled. Hereupon, the timing unit 5 constituted of the output device 5a, the comparison setter 5b, the delay unit 5c, and the clock device 5d, and the screw-down system's time constant setter 7 are arranged; hereby, the controller is constituted so as to send above control value to the draft controller 6 for the roll 1, at the sampling pitch determined by the function system taking the response time of above working system as the factor. As a result, the predictive control of high working accuracy expectable the minimum deviation of thickness of the worked product becomes possible.

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