Plastic mold with insert and undercut

The utility model relates to a plastic mold with inserts and a reversing button, which belongs to the field of the thermoplastic plastics forming mold, and is characterized in that a mold bracket of the mold comprises a fixed mold seat plate, a movable mold seat plate, a push plate, a square iron unit, an upper needle plate, a lower needle plate, an upper bottom needle plate and a lower bottom needle plate. The internal structure of the mold comprises a fixed mold core, a fixed mold inserting block, an inclined wedge, a sliding block, a movable mold inserting block, a movable mold core sleeve, a shouldered tap bolt, an allotype angle mandrill, and the like. The matching push-out between the allotype angle mandrill and the sliding block substitutes an inclined pushing mechanism, and the sliding block is connected with a second slicing block mold core by thread, and a first sliding block mold core is connected with a hanging platform of the second sliding block mold core; the allotype angle mandrill is contacte