Automatic labeling machine for production of polygonatum sibiricum substitutional tea

The utility model discloses an automatic labeling machine for production of polygonatum sibiricum substitutional tea, and relates to the technical field of packaging equipment. The labeling device comprises a labeling positioning assembly, air cylinders are symmetrically arranged on the front side and the rear side above a conveyor, an elastic piece is arranged in a mounting box, a moving block is arranged at the inner end of the elastic piece, and a moving plate is fixed to the inner end of the moving block; weighing sensors are arranged below the four corners of the box body. Through the cooperation of the elastic piece and the push plate, commodities of different specifications can be positioned, the weighing sensor is used for weighing the commodities in the box body and reminding personnel to transfer the commodities after the commodities reach the preset weight, and the problem that in the prior art, when labeling is carried out, due to the fact that the stroke of an air cylinder is inconvenient to adju