The utility model discloses an air blowing molding device for molding a plastic water tank, belonging to the technical field of blow molding machines, comprising an inner shaping blow needle head and a lower blow needle body in split plug-in fit. The inner shaping blow needle head and the lower blow needle body are connected and communicated through a connecting rod in plug-in manner. An air blowing base is arranged at the bottom of the lower blow needle body. The connecting rod is hollow, and an annular groove is formed on the outer wall of the lower end of the connecting rod. Detachable locking structures for detachably fixing and limiting the connecting rod are symmetrically arranged on both sides of the lower end of the lower blow needle body. The beneficial effects of the utility model are: the split plug-in fit of the inner shaping blow needle head and the lower blow needle body, as well as the detachable locking structures for fixing and limiting the connecting rod, meet the requirement that the inner shaping blow needle head needs to be taken out together with the product after water tank blow molding, and also enable limiting of the connecting rod during air blowing.
Country Code: CN
Application Number: CN202321875199.3
