Plastic bottle processing raw material classified conveying device and conveying method

The plastic bottle processing raw material classified conveying device comprises a support and rolling shafts arranged at the upper end and the lower end of the support, a belt is connected with the two rolling shafts in a surrounding mode, material buckets are fixed to the belt, push rods are arranged on the side walls of the material buckets, and the push rods on every two adjacent material buckets are arranged on the opposite side faces of the material buckets correspondingly. A track is arranged at the upper end of the support, a first air cylinder is arranged at the first end of the track, a piston rod of the first air cylinder is connected with a first material guiding box, a first outlet is formed in the left side of the first material guiding box, a first material guiding track is fixed to the track, a second air cylinder is arranged at the second end of the track, and a piston rod of the second air cylinder is connected with a second material guiding box. A second outlet is formed in the right side o