The beginning of the working process of the automatic labeling machine is that the box is fed to the labeling machine at a constant speed on the conveyor belt. The mechanical fixing device separates the boxes by a fixed distance and pushes the boxes forward along the direction of the conveyor belt. The mechanical system of the labeling machine includes a driving wheel, a rotary automatic labeling machine, a labeling wheel, and a reel .

　　The driving wheel intermittently drags the label tape to move, the label tape is pulled out from the reel, and passes through the labeling wheel. The labeling wheel will press the label tape on the box. An open-loop displacement control is adopted on the reel to maintain the tension of the label tape. Because the labels are closely connected to each other on the label tape, the label tape must be constantly started and stopped.

　　The label is attached to the case when the labeling wheel moves at the same speed as the case. When the conveyor belt reaches a specific position, the label belt drive wheel will accelerate to match the speed of the conveyor belt, and then decelerate to stop after labeling.

　　Since the label belt may slip, it has a registration mark on it to ensure that each label is placed correctly. The registration mark is read by a sensor, and during the tape deceleration phase, the drive wheels are repositioned to correct any mispositioning on the tape.