The main factors affecting the life of kraft paper slitting machine blade

First, the material of the knife. The single-chip cutting machine tool is made of high-temperature processing of the cutter body and the cutter body. The cutter body is made of cr w Mn steel with high hardness, and the cutter body is made of low-carbon steel. The durability of the blade The hardness of the tool steel is directly proportional to the quality of the blade, the hardness of the blade can reach 60 hardened HR55.
Second, it is the quality problem of the paper cutter. The higher the quality of the cutter, the longer the life of the cutter and the better the quality of the harvest.
Three. It is the shape and angle of blade grinding. Single-sided paper cutters generally use a single knife with a knife angle of 19 degrees to 23 degrees. Sharpening such a shape puts the bevel of the knife under stress during the cut, which is cut from the stack of paper. The friction of the paper base in one section causes the bevel of the blade to be worn rapidly. The edge of the double-sided knife has obvious advantages, which helps to reduce the load on the machine and improve the sharpening and cutting accuracy. Therefore, in the case of tool materials, the sharpening angle should be as small as possible, allowing shear resistance for the size of the crop.
4. Different crop materials. During the cutting process, the edge of the reamer reduces the speed and wear resistance of the material. When cutting paper, the speed of the blunt knife is related to the softness, hardness and ash content of the paper texture. The harder the cutting operation feels, the more ash the paper has and the faster the blade will dull.