Cam shaft modeling mold

The invention provides a cam shaft modeling mold. An upper modeling model and a lower modeling model are arranged on a mold body in parallel. The cam shaft modeling mold is characterized in that an upper fiber screen installation modeling portion is arranged between an upper pouring gate model and an upper cam shaft modeling model on the upper modeling model; a lower fiber screen installation modeling portion is arranged between a lower pouring gate model and a lower cam shaft modeling model on the lower modeling model; the upper fiber screen installation modeling portion and the lower fiber screen installation modeling portion form a complete fiber screen installation modeling portion; a plurality of grooves are formed in the parting face of the upper modeling model; and a plurality of protrusions are correspondingly arranged on the parting face of the lower modeling model. The cam shaft modeling mold is adopted for manufacturing sand molds, a fiber screen can be arranged at the junction of a formed inner po