Powder conveying oscillation sorting machine

The invention discloses a powder conveying oscillation sorting machine which comprises a support, a screening mechanism and a drive mechanism, wherein the screening mechanism comprises a screen which divides coarse and fine mixtures to prevent the mixtures from being conveyed downwards together and is provided with a convex-concave structure. Screen holes are formed in the bottom of each subarea, so that separated fine powder flows to a fine material channel sealed on the lower layer and is obliquely and downwards output, and a self-adaptive swing mechanism is connected between the support and the screen body part and used for providing continuous swing and variable-amplitude swing for the screening mechanism. A wave-shaped screen plate is adopted for blocking conveying of powdery raw materials, so that the screening effect is improved, and the situation that the materials roll down too fast and consequently the screening quality is affected is prevented. Meshes are formed in the slot bottom of the wave-shape