METHOD AND DEVICE FOR CONTROLLING ROLL FOR SURFACE TREATMENT SUCH AS BRUSH ROLL AND GRINDING/POLISHING ROLL

摘要

PURPOSE: To realize correct control to the desired polishing/grinding quantity by a simple method by detecting the input voltage of a motor, adjusting the rolling reduction of a rolling reduction mechanism based thereon, and controlling the roll to the optimum roll reduction value. ;CONSTITUTION: In a brush roll device for surface polish of a steel plate W, the steel plate W which is rolled and continuously carried on the carrying line is polished by a brush roll 1 where a brush which is mainly composed of a synthetic resin or the like is attached on the outercircumferential surface of a steel roll body. This brush roll 1 is rotated by a motor 2, and at the same time, roll reduction is executed by a roll reduction mechanism including a hydraulic cylinder 4, and the steel plate W is polished under pressure. In this polishing process, the input power of the motor 2 is detected by a power converter 10, the difference of the respective voltage equivalent to the input voltage and the preset voltage is computed by a control system 11, and the opening of a control valve 6 of a hydraulic pressure supplying circuit 5 is controlled by a geared motor 14 based on the result.;COPYRIGHT: (C)1994,JPO&Japio