Drying and screening device for tea processing

The drying and screening device comprises a processing box, a screening plate is movably installed in the middle of the interior of the processing box, two rotating shafts are arranged above the screening plate in a bilateral symmetry mode, stirring blades are arranged on the circumferential surfaces of the rotating shafts, a rotating rod is arranged below the screening plate, and the stirring blades are arranged on the rotating rods. A cam is arranged on the circumferential surface of the middle of the rotating rod, the protruding end of the cam abuts against the lower surface of the screening plate, a driving mechanism is arranged at the rear end of the rotating shaft, and through the arranged driving mechanism, the rotating shaft, the stirring blades, the rotating rod and the cam can be driven to rotate smoothly, so that the stirring blades stir tea leaves; the contact area of tea leaves and hot air is larger, tea leaf accumulation is prevented from affecting the drying efficiency, meanwhile, the cam is ma