Core Tip: Cable drag chain is a device that binds cables or wires or pneumatic or hydraulic pipes to facilitate their rotation and movement, and plays a role in traction and protection of built-in cables, oil pipes, gas pipes and water pipes. Automation equipment often needs to run for 24 hours. After a long time, the towing cable will be worn in the frequently moving corners. Although the towing chain can prevent the wires or cables from moving back and forth and avoid wear, it cannot completely guarantee that the cables wound on the towing chain will not move. The towing chain was originally designed to protect the cable, but now it has caused the cable wear, so how to avoid the cable wear caused by the towing chain has become a crucial issue. First,