| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding machine having no concern about clogging of a nozzle on the side of an injection machine, ensuring the supply uniformity of a molding material to a plurality of cavities on a mold side and enabling the preliminary temperature rise of the molding material. SOLUTION: In the injection molding machine constituted so that the injection nozzle 2 of the injection machine 1 is brought into contact with the injection port 4 of a mold 3 to inject the molding material 5 in the mold 3 from the injection machine 1, a throttle part 7 is formed to the injection flow channel 6 extending from the injection port 4 of the mold 3 to prevent the clogging of the injection nozzle 2 brought about by impurities formed by the curing of the molding material in the nozzle itself caused by the temperature rise of the nozzle itself in a conventional injection device having a throttle part formed to its injection nozzle. Since the throttle part 7 is formed to the injection flow channel 6 extending from the injection port 4 of the mold 3, an adverse effect is not exerted on the flow characteristics of the molding material 5 on the downstream side of the throttle part 7 to which a branch part or the like is arranged and the uniformity of a vulcanized product is ensured. COPYRIGHT: (C)2008,JPO&INPIT
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