In the slitting process of the metal slitting machine, due to the influence of some undesirable factors, so it is possible to cause the steel strip to produce deformation, the more common phenomenon is to produce lateral bending. There are many factors that cause this problem, such as the occurrence of bending of wood. For example, wood in the process of being rolled, its internal stress, become potential residual stress, due to the slitting machine slitting, the loss of stress balance and present bending.
It may also be due to the process of shearing the strip in the slitting machine equipment, due to the emergence of obvious burrs or burrs on both sides of the inconsistency and produce bending. For example, in the process of coiling due to burrs on one side and burrs on the larger side of the plate thickness is larger, the roll diameter is large and produces a flared cylinder to form the side of the extension of the bending. This situation should be inserted on the other side of the appropriate thickness of paper or do split processing.
In addition to this, it may also be due to the unevenness of the strip edge and the presence of a wavy shape, which will lead to changes in the thickness of its edge and cause the cutting edge to extend or due to the side of the slitter blade sintering, improper contact between the blade and the blade, so that the side of the blade is rough, and the edge of the strip is wavy. Specific countermeasures are: increase the horizontal clearance to reduce side pressure. Choose a blade that is suitable for the material of the cut object.
In addition, during the slitting process, you may also encounter the problem of transverse creasing of the steel strip. For such a situation, first of all, it may be due to the blade is involved in the production of folding marks. For example, in the slitting machine to cut a very narrow width of steel strip, due to the finger-shaped pressure plate does not fill the gap between the two outer edges, resulting in the strip by the two outer edges of the blade involved in the production. In addition, it may be due to a crease in the jaws of the winding drum, which occurs when the strip is not tightly fitted when it is wound on the winder and continues to be wound in this swollen state.
In the operation of the slitting machine equipment, may also be found above the slitting products appear to have obvious knife marks, which is likely to be caused by the pressure plate to produce knife marks, due to the pressure plate and the height of the through-plate is not consistent so that it is too much push pressure on the steel strip. Or due to the upper and lower jump of the tool platen to produce knife marks.
