Casting mold maintenance device

The invention discloses a casting mold maintenance device, and belongs to the technical field of mold maintenance, the casting mold maintenance device comprises a support, a conveying plate is arranged at the upper end of one side of the support, a conveying belt is arranged on the conveying plate in a transmission mode, an intermittent material distribution mechanism matched with the conveying belt for use is arranged at the upper end of the conveying plate, and a transverse plate is fixedly mounted on the support; one end of the conveying plate is fixedly connected with the transverse plate, and a side plate is arranged on one side of the transverse plate. A first air cylinder does circulating reciprocating push-pull motion, so that a push plate drives a sliding plate to do circulating reciprocating motion, then two sets of special-shaped plates are driven to do circulating reciprocating motion, and in the period, two sets of first rolling wheels roll along the Z-shaped faces of the corresponding special-sh