Visual screening and labeling machine based on multi-size packaged humidity-sensitive materials

The invention discloses a visual code screening and labeling machine based on multi-size packaged humidity-sensitive materials. The visual code screening and labeling machine sequentially comprises a first detection table, a labeling table, a discharging table and a control system in the conveying direction. The first detection table comprises a first conveying belt and a first detection part, and the first detection part at least can detect material information and position of a packaging material and the position of an original label; the labeling table comprises a second conveying belt, a pretreatment position and a labeling position, the pretreatment position and the labeling position are sequentially arranged on the second conveying belt, the labeling table is provided with a first mechanical arm, a labeling machine and a labeling mechanical arm, the first mechanical arm is provided with a rotating mechanism and a suction cup, and the rotating mechanism can rotate packaging materials adsorbed to the suct