Disassembly-free hole forming jig for earphone waterproof piece

The utility model relates to the technical field of earphone waterproof piece forming dies, in particular to a hole-dismounting-free forming jig of an earphone waterproof piece, which comprises an upper die plate and a lower die plate, and further comprises a first middle plate and a second middle plate which are arranged between the upper die plate and the lower die plate, a bottom waste material hole used for collecting waste materials is formed in the first middle plate, and a bottom waste material hole used for collecting waste materials is formed in the second middle plate. The first middle plate and the second middle plate are closed to form a forming die cavity for forming an accessory block, a hole column body is formed in the second middle plate, and the bottom of the hole column body is flush with the bottom waste material hole; the cross-sectional area of the bottom end of the hole column body is larger than that of the top of the bottom waste hole. And during subsequent mold opening, the waste mat