Efficient rubber particle feeding mechanism

The efficient rubber particle feeding mechanism comprises a discharging chute, a subpackaging box and an abutting device which are sequentially arranged from left to right, an opening is formed in the subpackaging box, the right side of the subpackaging box abuts against the left side of the abutting device, a partition plate is arranged in the middle of the subpackaging box, and the subpackaging box is divided into an upper box body and a lower box body through the partition plate; a feeding port is formed in the left side wall of the lower box body, a feeding door is hinged to the feeding port, a telescopic air cylinder is arranged at the bottom end of the subpackaging box, a discharging port is formed in the right side wall of the lower box body, when the lower box body is located at the lowest position, the discharging port of the lower box body is located on the abutting device, a lower conveying belt is arranged below the abutting device, and a discharging port is formed in the right side wall of the up