Views: 1 Author: Site Editor Publish Time: 2022-06-30 Origin: Site
The sharpness and service life of the A4 paper cutter's cutter greatly affects the production efficiency of this A4 paper cutter. The use effect and service life of the tool depend on four factors: the material of the tool, the shape and angle of the sharpening tool, the quality of the sharpening tool, and the type of the material to be cut.
1. Tool material
The single-piece A4 paper cutter is made of high-temperature inlay welding between the blade and the body. The blade is made of high-hardness chromium-tungsten-manganese steel, and the blade is made of low-carbon steel. The durability of the tool is directly proportional to the hardness of the steel used for the blade. The hardness of the high-quality blade after hardening is HR55~60.
2. Shape and angle of sharpening knife
On a single-sided A4 paper cutter, a single-edged blade is generally used, and its angle is between 19° and 23°. However, the sharp edges of this shape are not ideal. During the cutting process, the bevel of the cutter is under pressure from the portion of the stack being cut. In this way, under the friction of the edge of the paper, the bevel of the blade wears out quickly. The advantages of double-sided blades are obvious. Their sharpened edges help reduce the load on the machine and improve cutting accuracy.
The smaller the sharpening angle of the tool, the sharper the blade, the smaller the cutting force of the workpiece on the knife, the smaller the wear and power of the machine, the less product to be cut, and the cutting will be smooth. However, if the edge angle is too small, the strength and wear resistance of the insert will be reduced accordingly, which will reduce the cutting speed and cutting quality. Therefore, as far as the tool material allows and considering the cutting force of the cutting object, the angle of the sharpening edge should be as small as possible.
3. The quality of the sharpening knife
The quality of the sharpening depends on the production materials and equipment, the technical specifications of the sharpening and the skill level of the operator. The higher the sharpening quality, the longer the life of the tool and the better the cutting quality.
4. Types of cutting materials
During the cutting process, the speed at which the blade becomes dull is related to the wear resistance of the material being cut. When cutting paper, the speed at which the blade becomes dull is related to the texture and ash content of the paper. The faster the blade dulls when cutting harder papers with a higher ash content.
The above are the four major factors that affect the use of A4 paper cutters.