Knife Device Component

Abstract: The invention discloses a paper-machine paper scratching knife device for special-type paper products. An upper dryer and a lower dryer are fixed in an up-down dislocation mode, a paper scratching knife device body is fixed between the upper dryer and the lower dryer, the paper scratching knife device body comprises a beam, a trolley, a cylinder and an air-operated circular knife device component, the air-operated circular knife device component comprises a circular knife fixing seat, a circular knife protective cover, an oil receiving box, an air-operated motor and an alloy circular knife component, two side walls of the circular knife fixing seat are fixed on the circular knife protective cover through screws, an arc-shaped plate formed by bending a whole piece of stainless steel plate with a smooth surface is arranged on the circular knife protective cover, a seam is formed in the middle of the circular knife protective cover to enable an alloy circular knife to penetrate, and the trolley is composed of a moving trolley body, a bearing main shaft, a bearing, a main body pressing plate and a roll ball component.