The utility model discloses an accumulator type die head for a hollow blow molding machine, belonging to the technical field of blow molding machinery. It comprises a servo cylinder, an injection device, an accumulator device and a longitudinally arranged control mandrel. The injection device is located below the servo cylinder, and includes an injection cylinder upper cover, an injection cylinder barrel, an injection cylinder lower cover and an injection piston. The accumulator device is located below the injection device, and includes an accumulator cylinder barrel, an accumulator piston, an accumulator core, an intermediate ring and an accumulator cylinder cover. The accumulator core is divided into an upper section and a lower section, the upper end of the upper section of the accumulator core passes through the accumulator piston and is fixedly connected with the control mandrel through a lock nut, and a sliding sleeve is arranged in the lower section of the accumulator core. The maximum outer diameter of the accumulator core is larger than the inner diameter of the accumulator cylinder barrel, and the outer diameter of the sliding sleeve is larger than the inner diameter of the accumulator cylinder barrel. The utility model has the advantages of simple structure, convenience and practicality, reduces the force-bearing area of the mandrel, has fast extrusion speed, saves time, improves production efficiency, and reduces the production cost of plastic products.
Country Code: CN
Application Number: CN202121449256.2
