3 Factors affecting the sharpness of CNC knife sharpening machine


What are the factors that affect the sharpness of the CNC knife grinding machine? Let’s look at the introduction of automatic knife grinding machine manufacturers.

1. CNC knife sharpening machine installation, adjustment of the impact on the grinding knife
(1) grinding machine installation should pay attention to stability, to prevent vibration, the fasteners are firmly connected, the rotation of the grinding disk should be smooth, to prevent jumping and swaying. Otherwise grinding is not the sharp blade, and the appearance of jagged edges, etc.
(2) grinding knife plate should be vertical with the horizontal plane, otherwise, it will not grind sharp blades.
(3) grinding frame position should be from the disk surface for 6 mm, located in the middle of the disk radius, grinding frame position is not correct, easy to cause blade bias grinding. The length of the boom also affects, and shortens the grinding stroke, grinding not sharp blade.
(4) For mechanical drive type knife grinding machine, should make the v-belt has a suitable tension, and ensure that the grinding disk reaches the rated speed. The low speed of the grinding disk affects the sharpening effect.

CNC Straight knife sharpening machine video:

2. The influence of abrasive composition on the CNC knife grinding machine.
(1) too much emery in the abrasive, the blade edge scraping up a very thick layer of emery, the edge is easy to wear, the blade is not easy to sharpen.
(2) too little emery in the abrasive, the blade is not easy to grind sharp, the blade grinding time is long, easy to anneal, deformation.

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3. The impact of the operation method on the sharpening of the knife when sharpening
(1) uneven pressure, so that the blade bias grinding, blade sharpness of each tooth is not consistent, in the swing blade, uneven pressure will make the blade bump.
(2) too much pressure; easy to cause blade annealing, deformation. Shorten the life of the blade.
(3) pressure is too small, the blade can not fit smoothly on the grinding disc, easy to produce partial grinding, playing teeth and the middle bulge.
(4) swing speed is too fast; easy to scrape off the abrasive, easy to interrupt the knife teeth, it is not easy to master the balance of the blade, resulting in uneven pressure easy to produce partial grinding and intermediate bump.
(5) swing speed is too slow, speeds up the blade wear, shortens the blade life, easy to causes blade annealing.
(6) grinding stroke is short; grinding is not a sharp blade, and will make the middle of the grinding disk surface soon dented, shortening the use of the grinding disk period. Therefore, the grinding stroke should be as long as possible.

The above is the introduction of those factors that affect the sharpness of the knife grinding machine, I hope it will help you.