Paper knife sharpening method

Abstract

The invention discloses a method for sharpening a paper cutter, which adopts technical methods of coarse grinding, finish grinding and super finishing polish cutting edge, wherein during the coarse grinding, the paper cutter is worn and dulled, and edge of a tipping is fully worn off; particularly during the finish grinding, the method adopts a finishing wheel head with high rotating speed of 2,800r / min to perform the finish grinding on grinding allowance with smaller cutting edge of the paper cutter so as to greatly reduce grinding stress, fully cool and avoid generation of grinding cracks; during the finish grinding, the sharp cutting edge is subjected to subsequent oil stone super finishing polish so as to improve the strength of the paper cutter, effectively prolong the service cycle of the paper cutter, reduce the regrinding frequency of the cutter and improve the service life of the cutter; and as the method reduces equipment maintenance brought by cutter replacement, the operating efficiency and production efficiency of equipment are greatly improved.

Description

technical field [0001] The invention belongs to the tool grinding technology, and in particular relates to a method for grinding a paper cutting tool. Background technique [0002] After the existing paper cutting tool has been used for a period of time, the cutting edge of the paper cutting tool will not be able to cut paper due to lack of sharpness, wear and tear, and needs to be re-sharpened before use. The sharpening of the paper cutting tool is usually carried out on a special vertical surface grinder at present. The general process steps are: clamping and adjusting the tool, using a grinding head to grind the cutting edge, and manually trimming the cutting edge. However, the current sharpening method grinds the paper cutting tool for a short period of time, and it will appear unsharp, worn, chipped and unable to cut paper. Frequent resharpening of the knife is required, which greatly affects the Equipment operation efficiency and production efficiency, while reducing ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for sharpening a paper cutting tool. First use a large grinding head for rough grinding, and then use a 2800r / min high-speed motor and a small grinding head composed of a fine grinding wheel for fine grinding. At the same time, natural oil stone is used to perform ultra-fine polishing on the edge of the knife. Using the above method, the problem of easy wear and frequent regrinding of the edge of the paper cutting knife existing in the prior art is solved.

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