This series of plate rolling machines with pre-bending and rolling round functions are suitable for thin plates rolling. It has an asymmetric three roll structure. The three rolls are made of high-quality solid round steel, processed by high-frequency, carburizing, quenching and other processes to ensure mechanical durability. The upper roll of the plate rolling machine is mainly driven, the lower roll moves straight up and down to clamp the plate, and meshes with the upper roll gear through the lower roll gear, which together serve as the main transmission; the side roll performs tilting and lifting movement.