Anti-ejection-retreating mechanism for mold inner drawing

The utility model relates to the technical field of dies, in particular to an injection-back-preventing mechanism for an inner drawing of a die, which comprises a die body, an inner drawing block is slidably arranged on the die body, an inner drawing body is fixed or integrally formed on the inner drawing block, a containing groove is arranged on the inner drawing block, and at least one side of the containing groove is provided with a sliding groove communicated with the containing groove. The mold body is provided with a positioning groove used for locking the position of the pull block check block, a telescopic rod is arranged in the containing groove in a sliding mode, when the telescopic rod stretches out, the pull block check block is jacked, so that the first end of the pull block check block is jacked into the positioning groove from the sliding groove, and after the telescopic rod retracts by a set distance, the inner drawing block is driven to move. After the telescopic rod retracts by a set distanc