Full-automatic weight sorting machine

The utility model discloses a full-automatic weight grading machine which comprises a first conveying frame and a second conveying frame which are adjacent to each other, conveying rollers and a supporting plate are installed on the conveying frames, and a conveying belt is arranged on the outer sides of the two conveying rollers and the supporting plate. A supporting frame is installed on the first conveying frame, two guide plates with the adjustable distance are installed between the supporting frame and the conveying belt, a baffle is arranged between the two guide plates, and the baffle is controlled to ascend and descend through a first air cylinder installed on the supporting frame. A groove is formed in the top face of a supporting plate on the second conveying frame, a bearing plate is arranged in the groove, the bearing plate is connected with the bottom of the groove through a weighing sensor, a material pushing assembly is arranged on one side of the second conveying frame, and a material receivin