Mould core with ejection device for mineral casting

The utility model relates to the technical field of mineral casting molds, in particular to a mineral casting mold core with an ejection device, a screw rod rotates in the forward direction to drive an ejection cap to be screwed out and abut against a mineral casting, and then the mold core is taken out of a receding cavity under thrust in the reverse direction; mold core damage and mineral casting damage caused by violent mold removal are avoided; in the forward rotation process of the screw rod, the circular truncated cone gradually relieves the pressure on the stand column, the cuboid lock tongue is driven to retract in the mold plate lock cavity under the action of the spring, the connection relation between the cuboid lock tongue and the mold plate is relieved, the effect of fixing the mold core can be achieved, the mold core can be conveniently and rapidly taken down under the condition that the mold core and a mineral casting are not damaged, and two purposes are achieved. 本申请涉及矿物质铸件模具技术领域，特别是涉及一种矿物质铸件