Method for producing resin vessel made of resin, mould unit and moulding apparatus
AssigneeNissei Asb Machine Co., Ltd.
InventorsRyo Kawamura, Manabu Ogihara, Junji Takahashi
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Abstract
Provided is a method for manufacturing a container 10 made of resin, the method including an injection molding step S1, a temperature adjustment step S2, and a blow molding step S3. In the temperature adjustment step S2, a preform 11 is accommodated in a cavity mold 31, an air introduction member 32 is brought into airtight contact with the preform 11, the air is supplied from a blowing port of the air introduction member 32 into the preform 11, and the air is discharged from a discharge port of the air introduction member 32 to an outside of the preform 11, so that the preform 11 is in close contact with an inner wall of the cavity mold 31 and is cooled.
Claims8
A method for manufacturing a container made of resin, the method comprising at least:
- injection molding a bottomed preform made of resin;
- adjusting a temperature of the preform manufactured in the injection molding;
- and
- blow molding the preform whose temperature has been adjusted to manufacture the container made of resin,
- wherein, in the injection molding,
- a resin material is injected into a space having a shape of the preform, the space being formed by mold-clamping an injection molding mold,
- the resin material is cooled inside the space after the injection of the resin material has been completed, and
- a time during which the resin material is cooled in the space after the injection of the resin material has been completed is half or less of a time during which the resin material is injected.
Dependencies are inferred from the claim text.