Injection mold of comb body

The utility model relates to an injection mold of a comb body, which comprises a mold with a fixed mold and a movable mold, and is characterized in that an undercut processing mechanism is mounted on the movable mold and comprises molding cores for molding an undercut part A1 when a molded product A is molded, and sliding pieces arranged in the centers of the molding cores; each forming core and the sliding piece are provided with clamping units which are clamped with each other and a supporting plate which is located below the sliding block and used for supporting the sliding block, and each forming core slides relative to the sliding piece and is separated from the undercutting part A1 in the mold opening state. Compared with the prior art, the mold has the advantages that the undercutting processing mechanism is arranged between the fixed mold and the movable mold of a traditional mold, one of the undercutting processing mechanisms is used for forming the undercutting part A1 when the molded product A is f