A roll forming machine is a device that bends sheet materials into shapes through the action of working rolls. It can form various parts such as cylindrical pieces and conical pieces. It is a very important processing equipment. The working principle of a roll forming machine is to use external forces such as hydraulic pressure and mechanical force to make the working rolls move, thereby bending or rolling the sheet materials into shapes. Depending on the rotational movement and position changes of the working rolls of different shapes, parts such as elliptical pieces, arc-shaped pieces, and cylindrical pieces can be processed.