The cutting accuracy of a paper cutter is an important factor for measuring the quality of a paper cutter. A cutting machine with high cutting accuracy is a high-quality paper cutting machine. To make the edge of the cut paper smooth, it is necessary to ensure that the edge of the blade of the paper cutter is sharp and the grinding angle is appropriate.
         When cutting soft paper, the blade sharpening angle is preferably 16 °; when cutting cardboard and kraft paper, the blade sharpening angle is preferably 20 °; when cutting common printing paper, the blade The sharpening angle is preferably 21 °. Use talcum powder or paraffin to coat the cutting platform and blade opening.

In this way, the frictional resistance between the paper and the platform can be reduced, and the operation is labor-saving; the cutting times of the blade can be extended, and the cutting edge is smooth and neat. Also note that the machine needs to be lubricated before work to reduce noise. After doing the above work, the cutting quality of the paper cutter will be better guaranteed.