Injection blower turret

Abstract

The invention discloses a turret of an injection blowing machine, which comprises a triangular turntable and a plurality of mandrels, grooves and first long grooves connecting the grooves are respectively arranged on three side surfaces, a cylinder liner is arranged in the groove, and a cylinder liner is arranged in the groove. A piston is arranged in the sleeve, a first push plate is arranged in the first long groove, and the first push plate is offset against each piston on the same side, and a number of air supply holes are arranged on the bottom surface of the turntable, and there is a pair of air supply holes inside the turntable. A pair of corresponding air passages, the air passage extends to the bottom of the groove and communicates with the inside of the cylinder liner. On the three sides of the turntable, mandrel holders are respectively detachably arranged, and the mandrel holders are provided with The core rod installation hole, the core rod is fixedly arranged in the core rod installation hole, and the tail end of the core rod is offset against the first push plate. When it is necessary to replace the mandrel, it is only necessary to remove the mandrel holder and the mandrel together, then replace the new mandrel and the mandrel holder, and install the new mandrel holder on the side of the turntable. The convenience of replacing the mandrel is improved.

Description

technical field [0001] The invention belongs to the technical field of injection blowing machines, in particular to a turret of an injection blowing machine. Background technique [0002] The injection blowing machine integrates the functions of injection molding and blow molding. Through the turret and the injection molds and blow molds arranged around the turret, the injection and blow molding can be carried out simultaneously to improve production efficiency. [0003] The traditional injection blowing machine turret includes a triangular turntable and mandrels arranged on three sides of the turntable respectively. The rear end of the mandrel is provided with a cylinder and a push plate. The push plate can push the valve ejector rod at the back end of the mandrel to make the core The gas path of the rod is opened, and the mandrel changes positions in sequence with the rotation of the turntable, so that injection molding, blow molding and unloading are carried out synchrono...

AI Technical Summary

Problems solved by technology

[0003] The traditional injection blowing machine turret includes a triangular turntable and mandrels arranged on three sides of the turntable respectively. The rear end of the mandrel is provided with a cylinder and a push plate. The push plate can push the valve ejector rod at the back end of the mandrel to make the core The gas path of the rod is opened, and the mandrel changes positions in sequence with the rotation of the turntable, so that injection molding, blow molding and unloading are carried out synchronously. Since the mandrel and the mold cooperate with each other, after the mold is replaced, the mandrel also needs to be replaced. Then replace it, but the mandrel is directly fixed on the turntable, so the whole turret must be replaced, which is quite troublesome to replace. In addition, when the height of the bottle to be produced is relatively short, the mandrel will be short. The position of the opening and closing device of the injection blowing machine is fixed, that is, the position of the mold cannot be changed, which will cause the mandrel to be too short to match the mold

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