Liquid blow molding method
AssigneeYoshino Kogyosho Co., Ltd.
InventorsYuichi OKUYAMA, Mitsuru SHIOKAWA, Hiroki MURAKAMI
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Abstract
A liquid blow molding method of molding a preform into a liquid-containing container includes: a first nozzle descending step of descending a blow nozzle to a first position at which the blow nozzle does not seal the mouth part; a gas-liquid replacement step of supplying a liquid into the preform from the blow nozzle at the first position and discharging air inside the preform to outside; a second nozzle descending step of descending the blow nozzle to a second position at which the blow nozzle seals the mouth part, after the gas-liquid replacement step; and a blow molding step of supplying the liquid into the preform from the blow nozzle at the second position to blow mold the preform into the predetermined shape.
Claims7
A liquid blow molding method of molding a bottomed cylindrical preform having a mouth part into a liquid-containing container of a predetermined shape, the liquid blow molding method comprising:
- a first nozzle descending step of descending a blow nozzle to a first position at which the blow nozzle does not seal the mouth part;
- a gas-liquid replacement step of supplying a liquid into the preform from the blow nozzle at the first position and discharging air inside the preform to outside through a gap between the mouth part and the blow nozzle;
- a second nozzle descending step of descending the blow nozzle to a second position at which the blow nozzle seals the mouth part, after the gas-liquid replacement step;
- and
- a blow molding step of supplying the liquid into the preform from the blow nozzle at the second position to blow mold the preform into the predetermined shape.
Dependencies are inferred from the claim text.