A blow molding machine screw relates to the technical field of extrusion screws for blow molding machines, including a feeding section, a melting section and a homogenizing section. The screw is characterized by further comprising a mixing section connected to the rear end of the homogenizing section. The mixing section consists of a rod body and a preset number of circles of flow dividing protrusions evenly arranged on the outer circumference of the rod body. The cross-section of each flow dividing protrusion is rhombic, and one diagonal of the cross-section is parallel to the central axis of the rod body. The perpendicular bisector of the connecting line between adjacent flow dividing protrusions on the same circle passes through one flow dividing protrusion on the adjacent circle. This blow molding machine screw can fully mix materials before extrusion to ensure uniform mixing and improve the quality of blow molded products.
Area Code: CN
Application Number: CN201821590334.9
