Analysis of the principle of roll forming process of color steel tile press machine

Analysis of the principle of roll forming process of color steel tile press machine

A basic principle of the cold bending process for color steel tile equipment is to bend the strip along a straight line in the longitudinal direction. However, the pressure generated during the bending deformation process, combined with the residual stress present in the strip, often causes the strip to deviate from the cold bending equipment. The commonly used words to describe the degree of deviation of the strip after it comes out from the next forming roller are: lateral bending - horizontal bending, warping - vertical bending, twisting - in a spiral shape. To solve this problem, a straightening mechanism should be used at the end of the cold bending machine. The basic principle of straightening mechanism is that for profiles with defects such as side bending and warping, sufficient pressure is applied in the opposite direction by the straightening mechanism to induce long-term deformation. If the deformation in the opposite direction is appropriate, then after rebound, the profile can be completely straightened.

If the profile undergoes twisting deformation in a certain direction during the formation of the color steel tile press, the straightening mechanism rotates the profile in the opposite direction in sequence, resulting in plastic deformation. If the rotation angle is appropriate, the profile will no longer twist after rebound.