Plant fiber shearing device, shearing method and shearing device manufacturing method

The invention discloses a plant fiber shearing device, a shearing method and a shearing device manufacturing method. The plant fiber shearing device comprises a bracket. A shearing box is arranged onthe bracket. A twin-screw shearing mechanism is arranged in the shearing box. A feeding opening is formed in the left end of a top side plate of the shearing box, a discharging opening is formed in the right end of a bottom side plate of the shearing box, and a shaft hole is formed in a left side plate of the shearing box. A power mechanism is connected to the twin-screw shearing mechanism througha rotating shaft. The rotating shaft penetrates through the shaft hole and extends out of the shearing box. By means of the plant fiber shearing device, the shearing method and the shearing device manufacturing method, ordered and regular cutting of plant fibers can be realized, so that the cutting fineness and lengths of the plant fibers can be controllable, and the cutting quality and production efficiency of the plant