The working principle of a cardboard box strapping machine mainly involves placing objects in the middle of the strapping machine and completing the strapping process through a series of mechanical actions. Firstly, the right roof rises and presses the front end of the strap, then the strap is tightened and tied to the object. Next, the left top body rises and presses the appropriate position of the lower belt. The heating element extends into the middle of the two belts, and the middle top knife rises to cut the belt. Finally, the next bundling belt is delivered to its position, completing a work cycle. This process ensures that cardboard boxes or other packaging items are securely tied to prevent scattering during handling or storage. In addition, the automatic box sealing and bundling machine combines the functions of automatic box sealing machine and fully automatic bundling machine, with the function of continuous automatic box sealing and multiple bundling packaging, which not only reduces the footprint but also lowers the packaging cost. ‌