Unwinding method of cold bending machine

A: the calculation of the neutral layer in the deformation zone is accurate, the material calculation in the deformation zone is accurate, and the symmetry of the roller processing is good.


B: as far as possible, no deformation area is not pressed, and the clearance between the upper and lower rollers during the assembly is consistent.


C: before the material bites, according to the rolling state of the front track, the guide bevel should be set up, and the material slides smoothly in the rolling before the stable compression.


5. The problem of bending and twisting in production is mainly caused by unbalanced force, unbalanced force on the left and right, bending on the left and right, unbalanced force on the top and bottom, resulting in distortion. Solution: design force balance, accurate processing, easy installation and adjustment.


6. Roller machining accuracy is the key, for this reason, special tools made under the projector, magnify 20 times for testing.


7. Roller taper bearings are used at the main transmission side to ensure that the radial runout of the spindle is within and outside 0.04MM, to ensure that the spindle will not run from side to side, and there are gaps in the common ball bearing itself, so axial runout can not be avoided in accurate transmission.