Features of Cold Roll Forming Machine (English name: Cold Roll Forming Machine) and Ball Bearing Guide Rail Machine Roll Design and Manufacturing:
1. The principle of average force distribution across all passes ensures even force distribution on all rollers, resulting in balanced wear and extended roll life.
2. The rolls are made of C12MoV material to utilize its wear resistance. However, strength and hardness are contradictory. During heat treatment, the red hardness of C12MoV must be utilized, requiring two or even three tempering processes after quenching to achieve the desired hardness.
3. The arc section of the guide rail is the core component. After the initial pressing and forming, the arc section must be effectively restrained and protected by upper and lower rollers or horizontal rollers during subsequent rolling and bending processes. Otherwise, the arc section will inevitably change during the stretching process.
A smaller radius (R) will result in a triangular shape, causing the ball bearings to not reach the bottom, leading to noise from two-point contact. A larger radius (R) will cause the guide rail to wobble, resulting in a blurred track, uneven force distribution, guide rail deformation, and shortened lifespan. 4. Rolling stability issues: During production, the material often wobbles left and right in the roller track. This is actually due to asymmetrical force on a single set of rollers; if the force is greater on the left, the material wobbles to the right; if the force is greater on the right, the material wobbles to the left.
