Automatic carton batch number coding machine

The utility model discloses an automatic carton batch number coding machine. The device comprises an operation platform, a mounting groove is formed in the operation platform, a belt conveying deviceis arranged in the mounting groove, one or more blocking pieces are arranged on the belt conveying device, an optical fiber sensor is arranged on the downstream of the belt conveying device, and a coding device, the optical fiber sensor and the coding device are electrically connected with a data processing and control center; the cartons are conveyed to the code printing position through the conveying belt, automatic code printing is conducted through signal control and stretching and retracting of the air cylinder, the cartons subjected to code printing are automatically pushed out, and thenautomatic code printing of the next carton is conducted. The whole code printing process is efficient and automatic, the loss of cartons is greatly reduced, the production cost is reduced, the laborcost is saved, the product