Liquid blow molding method and liquid blow molding apparatus
AssigneeYoshino Kogyosho Co., Ltd.
InventorsYuichi OKUYAMA, Mitsuru SHIOKAWA
Life of this patent
Estimating the term…
Abstract
A bottomed tubular-shaped preform is molded into a liquid-containing container holding a content liquid, by supplying, through a first supply path, a first liquid at a predetermined pressure into the preform that has been heated to a predetermined temperature to liquid blow mold the preform and by supplying, through a second supply path that is different from the first supply path, a second liquid into the preform after or simultaneously with the supply of the first liquid.
Claims8
A liquid blow molding method for molding a bottomed tubular-shaped preform into a liquid-containing container in which a content liquid is held, the liquid blow molding method comprising:
- a first supply step of supplying, through a first supply path, a first liquid at a predetermined pressure into the preform that has been heated to a predetermined temperature to liquid blow mold the preform;
- and
- a second supply step of supplying, through a second supply path that is different from the first supply path, a second liquid into the preform after or simultaneously with the supply of the first liquid.
A liquid blow molding apparatus configured to mold a bottomed tubular-shaped preform into a liquid-containing container in which a content liquid is held, the liquid blow molding apparatus comprising:
- a mold in which the preform that has been heated to a predetermined temperature is to be fitted;
- a blow nozzle configured to engage with a mouth of the preform fitted in the mold;
- a first supply path configured to be connected to the blow nozzle to supply the first liquid to the blow nozzle;
- a sealing body configured to be arranged inside the first supply path in a manner such that the sealing body is displaceable in upward and downward directions to open and close the blow nozzle;
- a second supply path configured to be disposed in the sealing body in a manner such that the second supply path opens to a lower end surface of the sealing body to supply a second liquid to the blow nozzle;
- and
- a seal pin configured to be disposed inside the second supply path to open and close the second supply path, wherein
- the first liquid is supplied at a predetermined pressure into the preform through the first supply path to liquid blow mold the preform, and the second liquid is supplied into the preform through the second supply path after or simultaneously with the supply of the first liquid.
Dependencies are inferred from the claim text.