本机结构型式为三辊对称式，上辊在两下辊中央对称位置作垂直升降运动，通过丝杆丝母蜗杆传动而获得，两下辊作旋转运动，通过减速机的输出齿轮与下辊齿合，为卷制板材提供扭矩。本机床结构紧凑，操作维修方便。
The structure of this machine is a three roll symmetrical type. The upper roll moves vertically up and down at a symmetrical position in the center of the two lower rolls, which is obtained through the transmission of a screw and worm. The two lower rolls move in rotation, and the output gear of the reducer meshes with the lower roll to provide torque for the rolled sheet. This machine tool has a compact structure and is easy to operate and maintain.