Exhaust structure for die-casting die

The utility model discloses an exhaust structure for a die-casting die. The exhaust structure comprises a moving die insert and a fixed die insert, wherein the moving die insert is matched with the fixed die insert to form a cavity, multiple moving die exhaust grooves are parallelly formed in a matching end surface of the moving die insert at intervals, multiple fixed die exhaust grooves are parallelly formed in a matching end surface of the fixed die insert at intervals in a staggering way, and the moving die exhaust grooves of the moving die insert are communicated with the fixed die exhaust grooves of the fixed die insert in the staggering way to form an exhaust passage of which the cross section is in an S shape when the moving die insert and the fixed die insert are closed. According to the exhaust structure for the die-casting die, disclosed by the utility model, the moving die exhaust grooves are matched with the fixed die exhaust grooves in the staggering way to enable the S-shaped exhaust passage to be formed in a matching gap between the moving die insert and the fixed die insert when the moving die insert and the fixed die insert are closed, the cross section area of the exhaust passage can be increased by the exhaust passage in the structural type, gas in the cavity can be exhausted in a large amount during die-casting, a speed reduction action on molten metal can also be achieved while the length of the exhaust passage is indirectly increased, and the phenomenon that the molten metal runs out of the exhaust grooves can be avoided.