SHARPENING APPARATUS Russian patent published in 2021 - IPC B24B3/54 

FIELD: tools for sharpening.

SUBSTANCE: sharpening apparatus (1) for sharpening the blade (2) of a cutting tool, for example, a knife, comprises at least two flexible disks (3) wherein each of the disks is characterized by having an abrasive inner surface (3a), wherein said disks are adjoining with the abrasive surfaces (3a) thereof facing each other, and is configured to rotate in the same direction at the same speed around the same axis (4). The apparatus comprises compressing tools (5) located outside of the flexible disks (3) and compressing them along a non-diametrical chord, internal tools (6) located inside relative to said disks applying pressure to the inner surfaces (3a) of the disks (3) in the parts thereof defined by the chord and not intersecting with the axis (4), wherein the position of said internal tools (6) relative to said compressing tools (5) is selected by the sharpening angle (α).

EFFECT: increased accuracy and productivity of sharpening are achieved.

8 cl, 3 dwg