Packaging box feeding and lifting device of coating machine

The utility model discloses a packaging box feeding and lifting device of a film coating machine, which comprises rack side plates, a track adjusting mechanism, a driving mechanism, a lifting mechanism, a first photoelectric sensor and a second photoelectric sensor, the track adjusting mechanism is arranged between the pair of rack side plates, and the driving mechanism is transversely and horizontally arranged on one side of the lifting mechanism. The lifting mechanism is vertically arranged between the track adjusting mechanisms and is in transmission connection with the driving mechanism, the first photoelectric sensor is fixedly arranged below the lifting mechanism, the sensing end face of the first photoelectric sensor faces a packaging box, the second photoelectric sensor is fixedly arranged on one side of the lifting mechanism, and the sensing end face of the second photoelectric sensor faces the packaging box; the packaging box feeding and lifting device is arranged in front of the packaging box conve