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.
Claims7
A method for manufacturing a container made of resin, the method comprising:
- an injection molding step of injection molding a bottomed preform made of resin;
- a temperature adjustment step of adjusting a temperature of the preform manufactured in the injection molding step;
- and
- a blow molding step of blow molding the preform whose temperature has been adjusted to manufacture the container made of resin,
- wherein in the temperature adjustment step,
- the preform is accommodated in a cavity mold,
- an air introduction member is brought into airtight contact with the preform, and
- air is supplied from a blowing port of the air introduction member into the preform and the air is discharged from a discharge port of the air introduction member to an outside of the preform, so that the preform is in close contact with an inner wall of the cavity mold and is cooled.
A method for manufacturing a container made of resin, the method comprising:
- an injection molding step of injection molding a bottomed preform made of resin;
- a temperature adjustment step of adjusting a temperature of the preform manufactured in the injection molding step;
- and
- a blow molding step of blow molding the preform whose temperature has been adjusted to manufacture the container made of resin,
- wherein in the injection molding step,
- 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.
A mold unit to be used for a temperature adjustment step of a preform, the mold unit comprising:
- a cavity mold configured to accommodate therein a bottomed preform made of resin, and
- an air introduction member configured to be in airtight contact with the preform and to supply air into the preform,
- wherein the air introduction member has:
- a blowing port through which the air is to be supplied to an inside of the preform;
- and
- a discharge port through which the air is to be discharged to an outside of the preform.
A method for manufacturing a container made of resin, the method comprising:
- an injection molding step of injection molding a bottomed preform made of resin;
- a temperature adjustment step of adjusting a temperature of the preform manufactured in the injection molding step;
- and
- a blow molding step of blow molding the preform whose temperature has been adjusted to manufacture the container made of resin,
- wherein the preform has a thickness equal to or larger than 2.0 mm and equal to or smaller than 10.0 mm,
- wherein an area ratio of a sectional area of the container including a vertical center line of the container to a sectional area of the preform including a vertical center line of the preform is equal to or larger than 1.2 times and equal to or smaller than 10.0 times, and
- wherein, in the temperature adjustment step, the preform is cooled from an inner side thereof.
Dependencies are inferred from the claim text.