Eccentric core-pulling mechanism for mold

The utility model discloses an eccentric core-pulling mechanism for a mold. The eccentric core-pulling mechanism comprises a fixed mold sleeve plate, a movable mold sleeve plate, a fixed mold insert, a movable mold insert, a core-pulling insert and a core-pulling sliding block, which are connected with one another in a matched manner, wherein two driving oil cylinders are arranged on one side of the fixed mold sleeve plate; the moving direction of the core-pulling sliding block is parallel to the moving direction of the piston rods of the two driving oil cylinders; a push-pull plate is connected with the end parts of the piston rods of the two driving oil cylinders; a sliding block back plate is connected with the core-pulling sliding block; the push-pull plate is fixedly connected with the sliding block back plate through a plurality of pull rods; a wedge-shaped structure is arranged between the core-pulling sliding block and the movable mold sleeve plate; when the movable mold sleeve plate is moved, the core-pulling sliding block is moved for a micro distance under the effect of the wedge-shaped structure; during mold opening, by virtue of the wedge-shaped structure, the core-pulling sliding block is pried to move for a micro distance, and then the core-pulling sliding block is pulled to complete the rest stroke through the driving oil cylinders, so that the phenomenon that the core-pulling sliding block gets stuck because the pore pulling is carried out when the core-pulling sliding block is started to be pulled is avoided, and the running stability of the core-pulling sliding block is improved.