Edge point surface mirror grinding and polishing process of die cutting tool for printing

Abstract

The invention discloses an edge point surface mirror grinding and polishing process of a die cutting tool for printing. Firstly, two sets of single-surface grinding heads are used for single-surface grinding of parts to be grinded; then, a double-surface combined grinding head is used for double-surface fine grinding; after double-surface fine grinding, a precise grinding head is used for finely grinding the parts to be grinded; then, drying is performed; finally, two sets of leather polishing wheels are used for polishing edge points of the parts to be grinded; two grinding heads of the double-surface combined grinding head are the same in structure: one main shaft is assembled with a double-head overall spiral groove outer circle grinding wheel; two main shafts of the double-surface combined grinding head are rotated in the same direction at equal speed; and the defects caused by interrupted cutting and grinding in traditional grinding are overcome.

Description

technical field [0001] The invention relates to a polishing process, in particular to a mirror grinding and polishing process for the sharp edge surface of a die cutter for printing. Background technique [0002] The edge grinding method of domestic and foreign traditional die-cutting knives generally uses domestic or imported multiple sets of single-sided grinding heads or double-sided combined grinding heads to carry out combined grinding on the strip steel after quenching and tempering trimming, so as to process the die-cutting knives Sharp cutting edge at various angles. There is also a method of processing a die-cutting knife with a traditional utility knife grinder. The traditional die-cutter processing method is to install an integral cylindrical grinding wheel on a grinding spindle or a plurality of evenly spaced cylindrical grinding wheels on one spindle. One spindle equipped with integral cylindrical grinding wheel can only be used for single-sided grinding, whil...

AI Technical Summary

Problems solved by technology

In traditional double-face grinding, multiple grinding wheels of the same specification are stacked on the main shaft. When realizing double-sided grinding, the grinding wheels of the two main shafts must achieve a comb-like crossing, and a safety gap must be reserved between the crossing grinding wheels. Therefore, in the When the strip steel is ground simultaneously with double edges, seamless grinding cannot be achieved, only intermittent grinding

This kind of grinding will keep intermittent grinding marks on the blade surface and blade tip. The disadvantage is that the blade tip is uneven, not smooth, and has burrs. The sharpening will produce corrugated grinding marks, which is not beautiful, and the resistance will increase during cutting.

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