The cold roll forming machine is a machine that continuously bends metal sheets and belts such as coil and strip transversely through sequentially configured multi-pass forming rolls to make plastic processing technology of specific cross-section profiles.

Design and manufacturing features of cold roll forming machine:

1. According to the principle of average stress of each pass, the rollers of the whole line are subject to average stress, with balanced wear, and the service life of the rollers is extended.

2. C12mov material is used for roller because of its wear resistance, but the specific strength and hardness are contradictory. During heat treatment, the red hardness of c12mov should be used. After quenching, the hardness can be reached by tempering twice or even three times.

3. The circular arc part of the track is the core part of the slide rail. When rolling and folding the vertical edge in the next pass, the formed circular arc should be effectively protected by the upper and lower rollers or horizontal wheels. Otherwise, the circular arc position of the material will change during the stretching process, R will become a triangle, steel balls will not reach the bottom, two-point contact will generate noise, R will become large, the matching rail will shake, and the track of the slide rail will be fuzzy, Uneven stress, deformation of slide rail and shortening of service life.

4. Rolling stability: in production, we often encounter the problem of left-right deflection of materials in the raceway. In fact, a single group of rollers are subject to asymmetric forces, and the left side is subject to large forces, and the material is deflected to the right; The force on the right side is large, and the material deflects to the left