When the paper slitter is working, sometimes the size will be inaccurate, what is the main reason for this?
1. During the production of paper slitter equipment, due to the problem of horizontal warpage of the steel plate, it caused a poor width dimension. This is because the product cut in the lateral warpage state is larger than the setting value of the knife.
2. During the operation of the paper slitter equipment, if the cutter has a problem of lateral swing, it will result in defective dimensions, such as the lateral swing of the cutter and the different outer diameter of the cutter. The value of the tool's lateral oscillation cannot be zero. Usually the lateral sway value of the load is about 0.03-0.05mm. The reason is the accuracy error of knife thickness, inner diameter, spacer sleeve width, etc., and the warpage caused by the lateral stress when the thick plate is sheared.
3. Due to the production and operation of the paper slitter equipment, there is a certain matching error between the spacer sleeve and the cutter. Normally, the thickness accuracy of spacers, cutters, etc. is 0.005. When the number of blades is large when the knife is matched, the cumulative error becomes larger. This is due to poor upper tolerance setting. It should be known that the width of the product cut by the paper slitter is slightly lower than the size of the product side with the knife. Therefore, it is necessary to predict the degree of this difference in advance. Refer to it when determining the size of the spacer when matching the knife on the product side. Later, the shearing method used must also be considered. In comparison, if the paper slitter equipment uses straight-pull shear, then the tension of the steel coil will increase, the lateral warpage will disappear, and the size will also go down.
All in all, there are many reasons for the inaccurate size of the paper slitter. We should check the reasons in time and then solve them.