3D mobile phone protective film hot bending process positioning device

The utility model relates to the technical field of mobile phone protective films. The utility model relates to a positioning device, in particular to a 3D mobile phone protective film hot-bending process positioning device. The die comprises a convex die, a concave die and a protective film, the convex die and the concave die are both made of graphite materials; a positioning guide column is mounted at the corner of the front surface of the convex mold; a convex part is mounted in the center of the front surface of the convex mold; a guide groove is formed in the corner of the front surface of the concave film; a first pull lug groove is formed in the upper portion of the front face of the concave film. An embedding groove is formed in the lower part of the first pull lug groove; a positioning hole is formed in the corner of the embedding groove; a second pull lug groove is formed below the embedding groove; a first pull lug is arranged above the front surface of the protective film;compared with an existing