Die for punching pits on aluminum-plastic film

The utility model relates to the technical field of pit punching dies, in particular to an aluminum plastic film pit punching die which comprises an upper die set and a lower die set, and the upper die set is located above the lower die set and connected with the lower die set through a die set guiding assembly. The upper die set comprises a movable plate and a male die arranged below the movable plate, the movable plate is provided with an air inlet hole, the air inlet hole is provided with a vacuum air valve, the male die is provided with an inflation hole, and the inflation hole and the air inlet hole are used for filling nitrogen; the lower die set comprises a female die, a suction hole is formed in the female die, and the suction hole is used for discharging nitrogen. The aluminum-plastic film pit punching die is used for aluminum-plastic film pit punching, the inflation hole is additionally formed in the position of the male die, nitrogen is increased from the inflation hole when aluminum plastic makes