Automatic thickness control system for roller mill

Abstract

The invention discloses an automatic thickness control system for a rolling mill, which comprises the rolling mill. The system is characterized in that: the system is also provided with a computer, a servo mechanism and a screwdown oil cylinder. The screwdown oil cylinder is positioned on the upper part of the rolling mill, a piston rod of the screwdown oil cylinder is downward and is connected with bearing supports at both ends of a working roll on the rolling mill, and an oil inlet and an oil outlet of the screwdown oil cylinder are respectively communicated with an oil inlet and an oil outlet of the servo mechanism. A control end of the servo mechanism is connected with the computer. The screwdown oil cylinder is provided with a position sensor which is connected with the computer by means of a conducting wire. An inlet side and an outlet side of the rolling mill are respectively provided with an inlet velocity measuring roll and an outlet velocity measuring roll which are both provided with encoders, and the two encoders are both connected with a tachometer circuit in the computer by means of conducting wires. The inlet side and the outlet side of the rolling mill are respectively provided with an inlet thickness tester and an outlet thickness tester which are both connected with a deviation port of the computer by means of conducting wires. The automatic thickness control system can guarantee the rolling quality of strip materials so that rolled strip materials have higher quality, and is applicable to control the rolling thickness of the strip materials.

Description

technical field [0001] The present invention relates to automatic control systems. Specifically, it is an automatic thickness control system used to control the thickness of the strip in the process of rolling the strip by the cold rolling mill. Background technique [0002] It is well known in the strip processing industry that in order to ensure the rolling quality of the strip, the thickness of the strip needs to be controlled during the rolling process. The traditional method is to use a thickness gauge to measure the actual thickness of the rolled strip and display it on the display screen and feed it back to the operator. The operator adjusts the gap between the two work rolls of the rolling mill to measure the thickness of the strip according to the process requirements. The rolling thickness is adjusted. Since it takes time to adjust the roll gap from the display on the display screen, the rolled strip has traveled several meters during this time, and the thickness...

AI Technical Summary

Problems solved by technology

In addition, during the strip rolling process, the deformation and temperature changes of the work rolls of the rolling mill may affect the thickness of the rolled strip, and the strip thickness changes caused by these factors cannot be adjusted by the above method

Therefore, the quality of the strip rolled by the above method is difficult to guarantee, and the quality is not high.

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