The plate rolls machine is a kind of equipment that uses working rolls to make plate bending and forming, and it can form different shapes of parts such as cylindrical parts, conical parts and so on. The working principle of the coiler is to make the working roll move through the action of hydraulic pressure, mechanical force and other external forces, so as to make the plate bending or coiling and forming. According to the rotary movement of the work rolls of different shapes and the change of their positions, parts such as oval parts, curved parts and cylindrical parts can be processed.