Casting head system of casting mold

The invention discloses a casting head system of a casting mold in the technical field of casting production, which comprises a mold body, a main runner and a sub-runner, the mold body comprises an upper mold bottom plate, a runner plate, an upper mold fixing plate, an upper mold and a lower mold which are sequentially arranged from top to bottom, a cavity is formed between the upper mold and thelower mold, and the cavity is communicated with the sub-runner; a main runner and a sub-runner are arranged on the upper die bottom plate, the sub-runner penetrates through the runner plate and the upper die fixing plate and then is communicated with the cavity, the runner plate is rotationally connected with the upper die bottom plate and the upper die fixing plate, a power device for driving therunner plate to rotate is arranged on the upper die bottom plate, and a mounting cavity and a pushing device in the mounting cavity are arranged on the runner plate. A piston rod of the air cylinderis connected with a push ro