| 摘要 |
Hot runner system, used for an injection moulding machine-adapted to obtain several moulded prods. at a time, includes a hot runner block with a core-inserting bore in the central portion of the interior, extending in the axial direction sprue in the intermediate portion of a side section, a number of passages in another side section, spaced at regular intervals and in parallel with one another and extending up to the bore. A sprue member is fitted over the sprue, and nozzle members are fitted over the passages. A cylindrical core member having a heating means at its centre is inserted closely in the central portion of the hot runner block to extend in the axial direction. A hot runner communicates the sprue with the passages to which the nozzle members are joined, and is formed in the outer circumferential surface of the core member. |
