Die with sliding block core pulling function

The utility model provides a mould with a sliding block loose core, which comprises a top mould and a bottom mould, a first mould core, a sliding block and a shovel base are arranged on a parting surface of the top mould, the sliding block is positioned between the shovel base and the first mould core, a spring is arranged between the sliding block and the top mould, and the spring inclines towards the direction of the first mould core. The sliding block is arranged on the side face, abutting against the sliding block, of the first mold core in a sliding mode. A second mold core is arranged on the parting surface of the bottom mold; and when the top mold and the bottom mold are closed, the sliding block, the first mold core and the second mold core are spliced to form a mold cavity. When mold splitting is carried out, the top mold is moved, the shovel base is driven to be away from the bottom mold, at the moment, the sliding block slides relative to the shovel base, and along with separation of the shovel bas