1.the winding has advanced pulse breaking stop function, which can stop and brake in time in case of belt breaking or when the strip is used up. The tension is automatic mechanical tension, which can be automatically adjusted according to the speed and the full plate to empty plate of the strip in the production process. It is driven by frequency conversion motor, and pneumatic caliper brake is fast and efficient. The three wrapping heads are supported by the smooth rod slide rail, and the horizontal direction is adjusted by one screw rod, and the wrapping angle is adjusted by one screw rod. The design of the unit is advanced and reasonable, with high mechanical strength, simple operation and high production efficiency.