A cold bending machine is a mechanical process that uses sequentially arranged multiple bending rolls to continuously bend sheet materials such as coils and strips into specific cross-sectional profiles through remote-controlled weighing.

Features:
1. Principle of average force distribution across each stage, even force distribution across all roller lines, even wear, and extended roller lifespan.
2. The use of C12MoV material for rolling mill rolls takes advantage of its wear resistance, but there is a contradiction between its strength and hardness. During heat treatment, the red hardness of C12MoV must be utilized, and the hardness can only be achieved after two or even three tempering cycles following quenching.
3. The track arc section is the core part of the sliding track. After the initial forming of the arc through several passes, when bending the vertical edges in subsequent passes, the formed arc should be effectively constrained through the upper and lower rolling mills or cross wheels. Otherwise, the arc position of the material will definitely change during the stretching process, with R becoming triangular, the ball bearing not reaching the bottom, resulting in noise from two-point contact. When R becomes larger, it causes the track to vibrate in conjunction with the guide rail, leading to blurred tracks during sliding track use, uneven force distribution, deformation of the sliding track, and shortened lifespan.
4. Rolling stability issues often encountered during production include the problem of material deviation to the left and right in the rolling track. This is actually due to uneven force distribution on a single roller set, with greater force on the left causing the material to shift to the right, and vice versa with greater force on the right causing the material to shift to the left.