Patent ID: 11919221
Assignee: NISSEI ASB MACHINE CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. A resin container manufacturing apparatus comprising:
an injection molding station configured to injection-mold a preform;
a temperature adjustment station configured to adjust a temperature of the injection-molded preform; and
a blow molding station configured to blow-mold the temperature-adjusted preform,
wherein the injection molding station includes an injection core mold, an injection cavity mold and a neck mold that define a molding space of the preform,
wherein a time for cooling the preform in the molding space is 2/3 or less of a time for injecting a resin material, which is to be molded into the preform, into the molding space,
wherein the temperature adjustment station includes a temperature adjustment pot having a multistage structure constituted by a plurality of stages aligned in an upper and lower direction, and capable of independently setting a temperature for each stage, and
wherein the temperature adjustment pot is configured to cool the preform at different temperatures along the upper and lower direction while being in contact with an outer surface of the preform,
the temperature adjustment station includes a temperature pot,
the temperature pot includes:
an inner surface formed as one surface without a boundary; and
an outer surface including a groove portion formed between portions corresponding to the stages of the temperature adjustment station, and

the groove portion is formed to have a width of 1 mm or greater and 5 mm or smaller, along a direction in which the preform is inserted into the temperature pot.