Patent ID: 8047262

Claim:
A cooling system for a low-pressure casting mold including an upper mold, a side mold having a cavity in the middle thereof, and a lower mold such that molten metal is filled and solidified in the cavity to mold a cylinder head, the cooling system comprising: a sprue formed on a portion of the low-pressure casting mold corresponding to a mold cavity; a first cooling means for cooling the mold by supplying a cooling fluid to the upper mold; a second cooling means for cooling the mold by supplying a cooling fluid to a side mold; and a third cooling means for cooling the mold by supplying a cooling fluid to a lower mold, wherein the first cooling means includes: a housing including a cooling water inlet and a cooling water outlet formed on one side surface thereof, in which a lower portion is attached to an upper surface of the upper mold; a plurality of spark plug pins connected to the cooling water inlet and the cooling water outlet and provided parallel to the vertically downward direction in the inside of the housing; and a cooling line introduced in the horizontal direction and discharged in the opposite direction with the spark plug pins interposed therebetween, wherein cooling water introduced through an inlet of each of the spark plug pins cools the upper mold and is then discharged through the cooling water outlet.