Molding mandrel of embedded wire thread insert

The utility model discloses a forming mandrel of an embedded wire thread insert, which comprises a connecting part and a forming part, the connecting part is connected with a driving end of a winding driving device, the forming part comprises a first forming part, at least one end of the first forming part is provided with a second forming part, the first forming part is configured to be a cylindrical spiral section of a forming wire thread insert, and the second forming part is configured to be a cylindrical spiral section of the forming wire thread insert. The first forming part comprises a plurality of continuous spiral line forming grooves, the second forming part is configured to form a polygonal flange of the steel wire thread insert, the second forming part comprises at least one first polygonal forming groove, and the radial length of the first polygonal forming groove is larger than that of the spiral line forming groove. The forming mandrel of the embedded wire thread insert is simple in structure a