Because of its high stamping precision, high material utilization, high production efficiency, and easy automation, precision punching machines have become the most used stamping equipment in the manufacturing industry. The precision punching machine is mainly composed of upper and lower mold bases and molds installed on the upper and lower mold bases. The upper and lower mold bases are connected by guide posts, and the upper mold base moves up and down along the guide posts to realize punching and mold opening.

However, in actual use of precision punching machines, as the material is deformed by stamping, waste will be generated, which will affect the next process-the forming quality of stamping, which will bring unnecessary trouble to the next process and will also affect the final product Surface accuracy and mold service life reduce material utilization. The air spray device can effectively blow and clean the punch die, has a simple structure and high efficiency, and can effectively improve the surface accuracy of the stamped product.

The precision punch air blowing device includes two air pipes, which are installed on the lower surface of the upper mold base and located on both sides of the mold on the upper mold base. The air delivery pipe has an air jet section which is arranged along the front and rear direction of the die seat on the punching machine. There are several air jet pipes on the air jet section. The upper end of the air jet pipe communicates with the air jet section of the air delivery pipe, and the lower end faces down the punch The direction of the mold on the mold base is bent; an air nozzle is also installed at the lower end of the air nozzle, and the air nozzle is inclined downward in the direction of the cavity of the mold.

The precision punch air blowing device can blow the surface of the material during the process of moving the material; after the material is taken out, it can blow the mold cavity; this can better clean the mold cavity and the surface of the material, thereby achieving The waste debris on the die cavity and the surface of the material is removed, thereby improving the quality and surface accuracy of the stamped product. In order to make the blowing effect better, the inclination angles of the air nozzles at the lower ends of the two adjacent air nozzles of the precision punch are different, so as to achieve multi-angle blowing on the mold cavity on the lower die base of the punch, thereby further ensuring the stamping product Molding accuracy improves the quality of finished products.