Full-automatic bottle blowing method for large-capacity PP bottles

According to the full-automatic bottle blowing method for the large-capacity PP bottles, a bottle blank overturning and feeding procedure is arranged between a bottle blank feeding procedure and a bottle blank circulating preheating procedure in a transition mode, and the upper end and the lower end of an overturning and feeding module are connected with a blank feeding module and a constant-temperature preheating module correspondingly; the blank supply module and the overturning blank conveying module are matched to continuously overturn and supply bottle blanks to the constant-temperature preheating module, and the bottle blank circulating preheating procedure is used for preheating the bottle blanks in a multi-stage preheating mode that heating and cooling circulation are alternated, and then the bottle blanks are transferred to a bottle blowing station for blow molding in a variable-pitch mode through the variable-pitch transfer procedure. Molded bottles are continuously output through a finished product