Injection blow-molding machine rotation tower

Abstract

The invention discloses an injection blow-molding machine rotation tower which comprises a triangular turntable and a plurality of core rods. Grooves and first long grooves for connecting the grooves are respectively formed in three side faces, cylinder sleeves are arranged in the grooves, pistons are arranged in the cylinder sleeves, first pushing plates are arranged in the first long grooves, the first pushing plates abut against the pistons on the same side face, a plurality of air supply holes are formed in the bottom surface of the turntable, air ways communicated with the air supply holes in a one-to-one correspondence mode are formed in the turntable, extend to the bottom surfaces of the grooves and are communicated with the insides of the cylinder sleeves, core rod seats are respectively and detachably arranged on the three side faces of the turntable and are provided with core rod installing holes opposite to the first long grooves, the core rods are fixedly arranged in the core rod installing holes, and the tail ends of the core rods abut against the first pushing plates. When the core rods are needed to be replaced, only the core rod seats and the core rods are dismounted together, then new core rods and core rod seats are mounted, the new core rod seats are installed on the side faces of the turntable, and the convenience of core rod replacement 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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