Abstract: For the problem that the steel strip in the steel strip overwinding buffer is elongated and becomes thin and easy to break when it is subjected to high speed impact, the combination of steel strip + silicon rubber + steel strip is proposed as the buffer element of overwinding buffer device, and calculation analysis and soildworks simulation analysis are carried out. According to the analysis, it is found that the combination of steel strip + silicone rubber + steel strip type buffer component has a better brake effect than that of the steel strip type buffer component.