Thread forming component of plastic oil tank blowing mold

The invention discloses a thread forming component of a plastic oil tank blowing mold, and relates to the technical field of blowing mold manufacturing. The thread forming component comprises a ring sleeve with an inner thread, wherein a limiting plate is arranged at one end of the ring sleeve, and an installing shaft is arranged at the outer end of the limiting plate, and is arranged on the blowing mold by a bearing rack; a cooling disc is arranged between the limiting plate and the installing shaft; a circulating water tank is arranged at one end, close to the limiting plate, of the cooling disc. Compared with the prior art, the thread forming component has the advantages that cooling water is introduced to the circulating water tank of the cooling disc to take away the heat generated in the plastic oil tank thread forming process through heat exchange, the thread part of the plastic oil tank is effectively cooled, irregular shrink deformation of the thread port after forming is avoided, good assembly seali