Adjusting device for improving straightness of medium-thickness steel plate and control method thereof

The invention relates to an adjusting device for improving the straightness of a medium-thickness steel plate and a control method thereof.The adjusting device comprises a straightening machine, roller systems, an adjusting module, a detection module and a control module, and the pressure values between the two axial ends of an inlet side roller system and the medium-thickness plate and between the two axial ends of an outlet side roller system and the medium-thickness plate are detected through the detection module; the control module is used for calculating a pressure difference value between two axial ends of the inlet side roller system or a pressure difference value between two axial ends of the outlet side roller system, and comparing the pressure difference value with a preset standard pressure difference value, so that adjusting parameters of the adjusting module are determined; the adjusting module adjusts the pressure between the two axial ends of the straightening machine roller system and the medi