| 摘要 |
PURPOSE:To eliminate the development of undercooling at the mouth part and bottom part of a hollow vessel and reduce waste flash portions and consequently improve the raw material efficiency by a constitution wherein the mouth part mold of the fixed mold of one mold assembly fixed onto the outer peripheral surface of a disc and the bottom part mold of the fixed mold of the adjoining mold assembly are made into an integral body. CONSTITUTION:A large number of sets of mold assembly, which consists of a fixed mold 2 and an open-close mold 3 to open and close about side of a disc 1 in the direction of rotation of the disc 1, are arranged onto the outer peripheral surface of the disc 1. Each mold is for molding a hollow vessel and has a mouth part cavity 4, a barrel part cavity 5 and a bottom part cavity 6. Mold blocks constituting said cavities are separated from one another. On the other hand, the fixed mold 2 also consists of a mouth part mold 2a, a barrel part mold 2b and a bottom part mold 2c. The mouth part mold 2a of the fixed mold 2 of one mold assembly and the bottom part mold 2c of the fixed mold 2 of the adjoining mold assembly are made into an integral body. Accordingly, the mold assemblies adjacent to each other are mutually joined into an integral body through the mouth part mold 2a and the bottom part mold 2c of the fixed mold 2. Due to the constitution as mentioned above, the mouth part mold 2a and the bottom part mold 2c of the fixed mold 2 in the respective mold assemblies are cooled integrally. |
