The present utility model belongs to the field of plastic molding, and specifically relates to an improved die opening for a hollow blow molding machine, comprising an inner die opening and an outer die opening, both of which are annular, the inner die opening is arranged in the ring of the outer die opening, and a gap is formed between the inner die opening and the outer die opening. The present utility model can effectively solve the problem in the prior art that the extruded material is uneven in thickness due to the elliptical inner die opening, which affects the quality of plastic barrel products. The improved die opening changes the inner die opening from elliptical to circular, so that the material can be extruded uniformly from the gap between the inner die opening and the outer die opening, improving product quality. Meanwhile, a temperature control device is added to the outer die opening, which can also monitor the discharge temperature in real time.
Country Code: CN
Application Number: CN201520129528.9
