Screening roller of screening feeder

The invention discloses a screening roller of a screening feeder. The transition section of the screening roller of the existing screening feeder is a straight section, and in the transportation process, when materials are pressed towards adjacent rollers by the screening roller, the straight section of the screening roller linearly downwards presses the materials, the friction time is long, resistance is increased, the materials are even clamped between two rollers, normal operation of the screening feeder is affected, and more seriously, a speed reducer can be damaged. The screening roller of the screening feeder comprises a rotating shaft and a plurality of oval roller bodies arranged along the axial direction of the rotating shaft. The screening roller can achieve a function of conveying the materials, and when the adjacent screening rollers rotate, the materials are fed between the screening rollers, the friction time of the oval outer contour and the materials is short, resistance is reduced, and theref