公开(公告)号：US20200346390A1

公开(公告)日：2020-11-05

申请号：US16957147

申请日：2018-10-25

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Yuichi OKUYAMA ,  Hideaki HOSHINO ,  Mitsuru SHIOKAWA ,  Kenichi SUYAMA

IPC: B29C49/46 ,  B29C49/12

Abstract: A method of manufacturing a liquid container, in which, a nozzle unit includes a blow nozzle having a supply port and a spare supply tube having, at a lower end thereof, a spare supply port. The method includes: an air exhausting step of exhausting the air in the preform to the outside by supplying a liquid into the preform from the spare supply port located at a bottom portion of the preform; a liquid blow molding step of molding the preform into a liquid container by supplying a pressurized liquid from the supply port into the preform; and a headspace forming step of forming a headspace by exhausting the liquid from the inside of the liquid container.

公开(公告)号：US20210362394A1

公开(公告)日：2021-11-25

申请号：US16646272

申请日：2018-08-13

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Hideaki HOSHINO ,  Kenichi SUYAMA ,  Yuichi OKUYAMA

IPC: B29C49/46 ,  B29C49/12

Abstract: A liquid-containing container manufacturing method includes: a liquid blow molding step of molding a preform into a liquid-containing container of a shape along an inner surface of a mold for blow molding, by supplying a liquid pressurized from a supply path into the preform in a state in which a blow nozzle engages with a mouth part of the preform; and a headspace formation step of forming a headspace in the liquid-containing container, by operating a pressurized liquid supply source in a suction direction to discharge the liquid from inside the liquid-containing container through the supply path, thereafter closing the supply path, and discharging the liquid from inside the liquid-containing container through a discharge port of a discharge rod extending into the liquid-containing container through the blow nozzle.

公开(公告)号：US20210039302A1

公开(公告)日：2021-02-11

申请号：US17042052

申请日：2019-03-06

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Hideaki HOSHINO ,  Yuichi OKUYAMA ,  Kenichi SUYAMA

IPC: B29C49/12 ,  B29C49/46

Abstract: A liquid container manufacturing method includes: a liquid blow molding step of molding a preform into a liquid container; and a headspace formation step of forming a headspace, by discharging, in a state in which a liquid supply path is closed, a liquid out of the liquid container through a discharge port, the discharge accomplished by drawing-in by a liquid drawing source. In the headspace formation step, a pressurized gas is supplied from a pressurized gas supply source into the liquid container through a gas supply port to thereby assist the discharge, by the drawing-in, of the liquid out of the liquid container through the discharge port, and, when a pressure in a discharge path has increased to a set value, the supply of the pressurized gas by the pressurized gas supply source is stopped.

公开(公告)号：US20200247030A1

公开(公告)日：2020-08-06

申请号：US16326653

申请日：2017-06-07

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Yuichi OKUYAMA ,  Kenichi SUYAMA

IPC: B29C49/46

Abstract: A liquid blow molding method includes: a preliminary pressurizing step of operating a pressure feeding source to preliminary pressurize a liquid between the pressure feeding source and a blow nozzle; an operating condition setting step of setting an operating condition of the pressure feeding source on the basis of data acquired by the preliminary pressurizing step; a blow molding step of liquid blow molding a preform into a container of a predetermined shape; and a suck-back step of operating the pressure feeding source in a reverse direction on the operating condition set in the operating condition setting step to suck back the liquid from inside of the container molded into a predetermined shape in the blow molding step toward inside of the blow nozzle.