Hamaguri-ba knife grinding method

Abstract

Provided is a hamaguri-ba knife grinding method. The method includes the steps of preparing a grinding machine and conducting first angle grinding, second angle grinding, third angle grinding and polishing treatment. In the step of preparing the grinding machine, the grinding machine comprises a driver, three handle-carrying grinding pieces arranged according to the different grinding angles, andauxiliary guide blocks. The three handle-carrying grinding pieces are used for being installed on the driver. The outer side of each handle-carrying grinding piece is provided with a conical grindingface. The auxiliary guide blocks are configured on the two sides of the handle-carrying grinding pieces respectively. A vertical guide face is formed at the position, corresponding to the side face ofthe corresponding handle-carrying grinding piece, of the auxiliary guide block. All the guide faces are located above the grinding faces. The first angle grinding, second angle grinding and third angle grinding are sequentially conducted in cooperation with the grinding machine, and then polishing treatment is conducted, so the grinding of a hamaguri-ba is completed.

Description

technical field [0001] The invention relates to a grinding method for a clam blade knife, which is used for grinding and making a clam blade knife. Background technique [0002] Clam blade is one of the cutting methods of knives, also known as convex grinding (Convex Grind), which is the most difficult in blade grinding, and the characteristics of clam blade are both strong and smooth. [0003] Today's mass-produced knives are generally V-grinded or concave-grinded due to the processing method. Except for samurai swords, clam blades are usually only seen in hand-made knives. In the prior art, the convex grinding is mostly done with sandpaper or a belt machine, but the above methods are not easy to control the force or angle, especially for thicker chopping knives, the difficulty is even higher, and, in fact, sandpaper or belt machine grinding The knives made by the manufacturer are generally called "clam-like blades". The edges and corners of V-grinding are thrown away, and...

AI Technical Summary

Problems solved by technology

In the prior art, the convex grinding is mostly done with sandpaper or a belt machine, but the above methods are not easy to control the force or angle, especially for thicker chopping knives, the difficulty is even higher, and, in fact, sandpaper or belt machine grinding The knives made by the manufacturer are generally called "clam-like blades". The edges and corners of V-grinding are thrown away, and the curved angle that a real clam blade should have can not be ground, so the sharpness and smoothness of the blade and the strength of the blade are the same as the original blade way makes no difference

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