How does the paper cutter affect the cutting quality

Generally speaking, the smaller the edge angle of the paper cutter blade, the sharper the blade and the higher the cutting accuracy, and the small blade angle will reduce the workload of the knife holder, reduce the wear and power consumption of the machine. In fact, the blade angle of the paper cutter is not as small as possible, and there is no disadvantage. If the blade is too small, it is very easy to be damaged by wear and tear, especially when cutting some hard and thick paper, it is easy to cause the blade to bend and damage the blade. Therefore, through years of experience in papermaking Dapeng printing machine, we know that the blade angle of 22° is more suitable. , and for some special hard materials, 24°/22° double bevel blades are used, which is conducive to cutting accuracy.
The function of the knife pad on the paper cutter is to protect the blade and cut off the "bottom paper". According to experience, often after the new blade and knife shim are installed, the quality of the paper cut out by the first knife is not good, which may cause the bottom edge of the paper to be unclean, and may even cut continuously. Therefore this requires that the shim has good flatness. Knife marks can also determine the smoothness of the edge of the cut paper. Usually, the cut paper with a depth of not less than 0.5mm is relatively smooth. Since the blade and the knife pad on the paper cutter will not remain straight, in order to ensure that the backing paper is cut evenly, a paper strip will be placed on the back of the knife pad to achieve the ideal "cutting" effect.