| 摘要 |
PROBLEM TO BE SOLVED: To prevent stringiness of a material between an end of a parison, a die and a nozzle when next molded and to reduce an appearance fault of a molding by holding the parison by a mold, and then supplying a part of a compressed air to be supplied from a nozzle to a contact portion bringing the parison into contact with the die. SOLUTION: The direct blow molding machine comprises a head 5 having a die 1 and a nozzle 2, an air passage 3 for partly cooling a molten resin adhered to the nozzle 2 and the die 1, and a mold 4 arranged under the head 5. A parison is extruded to a predetermined length between the die 1 and the nozzle 2, held in the mold 4, and a molding is molded by supplying a compressed air from the passage at a center of the nozzle 2. The compressed air is discharged from the passage 3 for cooling the molten resin adhered to the die 1 to cool the due 1. Accordingly, the parison 6 when next molded is separated from the die 1 without extending in a stringiness state. Thus, stringiness of a molding material is eliminated to reduce an appearance fault of the molding.
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