The demonstration of the working status of the bracket shows that the protective bracket of the cutting machine can provide users with a visual understanding of the cutting machine. The protection bracket can effectively protect the steel strip of the cutting machine's working platform, and the pig iron protection directly disagrees with the damage of the cutting machine, which can bring practical cost saving benefits to the manufacturer. Moreover, the replacement action is simple and convenient, making the working efficiency double, making the pig iron bracket more difficult to be damaged by the cutting machine, and the replacement operation is simple and convenient.