Yamada Dobby Co., Ltd.

Yoshihiro Otoshi

A continuous material feed device is provided with a motor driving a continuous material feed mechanism, and transfers a continuous material into a press intermittently. Its control device is provided with (1) a position detector for detecting position of the continuous material feed mechanism, and (2) a control circuit for (a) fixing and storing previously the optimum pattern command value of behavior of the continuous material feed mechanism, (b) calculating error between the real position data from the position detector and the fixed command value of the optimum pattern in a prescribed period of time from the drive start of the continuous material feed mechanism, (c) correcting the command value to be output in order to eliminate the error (d) outputting the command value after the correction (e) controlling the motor.

Control device of continuous material feed device

Learning control is adopted in slide control of a press, and the actual behavior pattern of the slide is converged to the optimum pattern thereby breakage of a metal mold or the like can be prevented. The slide control device is provided with a linear motor or a servo motor driving the slide in reciprocation, a position detector detecting position of the slide, and a control circuit fixing and storing previously the command value of the optimum pattern of behavior of the slide, and calculating error between the real position data from the position detector and the fixed command value of the optimum pattern in a prescribed period of time from the drive start of the slide, and correcting the command value to be outputted in order to eliminate the error and outputting the command value after the correction and controlling the linear motor or the servo motor.

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Aichi-ken, Japan

Yoshihiro Otoshi