Spreading device of spreading machine

The invention discloses a spreading device of a spreading machine, which mainly comprises a working table, a movable rack, a spreading lower clamping plate, movable teeth, a spreading upper clamping plate, a cloth cutting mechanism and a cloth clamping rack, the working table is of a flat plate-shaped structure, the lower side of the working table is provided with supporting legs which are placed on the ground, and the movable rack is mounted at the rear end of the upper side of the working table and can move back and forth and be positioned; fixed teeth are arranged on the lower cloth pulling clamping plate and the upper cloth pulling clamping plate, movable teeth are arranged between the fixed teeth of the lower cloth pulling clamping plate, the lower cloth pulling clamping plate and the upper cloth pulling clamping plate are installed on the front side of the movable rack and can move up and down, and the cloth cutting mechanism is installed on the upper cloth pulling clamping plate and can move left and r