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公开(公告)号：US20220234273A1
公开(公告)日：2022-07-28
申请号：US17614463
申请日：2020-03-05
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Yuichi OKUYAMA , Mitsuru SHIOKAWA
Abstract: A blow molding apparatus including: a mold; a blow nozzle; a pressurized fluid supply unit; and a blow nozzle moving unit configured to cause a relative movement of the blow nozzle between a connected position and a standby position, wherein a preform is molded into a container by supplying a pressurized incompressible fluid into the preform. The blow molding apparatus includes: a drawing member including a drawing port; a drawing pump configured to be connected to the drawing member; and a drawing member moving unit configured to move the drawing member so that the drawing port is positioned below the blow nozzle, after the container has been molded and the blow nozzle has been moved from the connected position to the standby position.
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公开(公告)号：US20220203596A1
公开(公告)日：2022-06-30
申请号：US17614405
申请日：2020-04-07
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Kei YOSHINO , Mitsuru SHIOKAWA
Abstract: A liquid blow molding apparatus, including: a nozzle configured to define a flow path for a liquid that includes an opening and closing port and a discharge port; a seal body configured to open and close the opening and closing port and includes a guide hole; and a rod configured to move in an axial direction while being guided by the guide hole, wherein the seal body includes a tubular-shaped extension portion configured to extend into the discharge port when the seal body closes the opening and closing port, and a tip surface of the extension portion is configured to have liquid repellency.
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公开(公告)号：US20200307062A1
公开(公告)日：2020-10-01
申请号：US16765566
申请日：2018-10-03
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Mitsuru SHIOKAWA , Yuichi OKUYAMA
Abstract: A liquid blow molding method of molding a synthetic resin preform having a mouth portion into a liquid container of a predetermined shape, the method including: an air-liquid replacement step of exhausting the air inside the preform to the outside while a liquid is supplied into the preform from the mouth portion through a blow nozzle; an air-liquid separation step of separating the air from the liquid inside the preform by rotating the preform about an axial center of the mouth portion; and a blow molding step of molding the preform into a container of a predetermined shape by supplying a pressurized liquid into the preform from the mouth portion through the blow nozzle, after the air-liquid separation step.
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公开(公告)号：US20200047395A1
公开(公告)日：2020-02-13
申请号：US16340632
申请日：2017-08-09
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Yuichi OKUYAMA , Mitsuru SHIOKAWA , Hiroki MURAKAMI
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.
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公开(公告)号：US20240083092A1
公开(公告)日：2024-03-14
申请号：US18261190
申请日：2022-01-06
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Mitsuru SHIOKAWA , Mitsuaki ISAHAI
CPC classification number: B29C49/46 , B29C49/12 , B29C49/62 , B29C2049/4664 , B29L2031/7158
Abstract: A liquid-filled container manufacturing method including: the air discharge step of discharging air from an inside of a preform, by supplying a liquid at a level of pressure that does not cause stretching of the preform to the inside of the preform through an intra-tube channel formed between an inner peripheral surface of a spare supply tube extending through a blow nozzle and an outer peripheral surface of a spare supply rod provided radially inward thereof; and the liquid blow molding step of molding the preform into a container with a shape conforming to an inner surface of a mold, by stretching the preform downward using the spare supply rod and supplying a pressurized liquid to the inside of the preform through an intra-nozzle channel formed between an inner peripheral surface of the blow nozzle and the outer peripheral surface of the spare supply rod.
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Patent Agency Ranking
公开(公告)号：US20210394421A1
公开(公告)日：2021-12-23
申请号：US17295977
申请日：2019-10-21
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Hideaki HOSHINO , Mitsuru SHIOKAWA , Yuichi OKUYAMA
Abstract: A blow molding device includes a nozzle, a pressurized fluid supply source, a seal body, and a rod. The seal body includes a tubular wall. A communication depression extending from a lower end of the tubular wall to a communication port open on an outer circumferential surface of the tubular wall is provided in an inner circumferential surface of the seal body. A communication path is provided in the nozzle. The blow molding device further includes a fluid suction source configured to suck an incompressible fluid from the communication depression through the communication path and the communication port, and/or a pressurized gas supply source configured to supply a pressurized gas that blows off the incompressible fluid from the communication depression through the communication path and the communication port.
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公开(公告)号：US20210331370A1
公开(公告)日：2021-10-28
申请号：US17269809
申请日：2019-06-06
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Mitsuru SHIOKAWA , Hideaki HOSHINO
Abstract: In a liquid container manufacturing method, a nozzle unit includes a flow path that is configured to be opened and closed by a valve embedded in a blow nozzle, and a seal pin arranged in a pin accommodating space included in the flow path has a protruding portion configured to enter a communication space in a closed state of the valve. The liquid container manufacturing method includes a liquid blow molding step of molding a preform into the liquid container, by supplying, to an interior of the preform, a pressurized liquid.
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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
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.
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公开(公告)号：US20190232544A1
公开(公告)日：2019-08-01
申请号：US16338680
申请日：2017-09-04
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Shinichi TABATA , Mitsuru SHIOKAWA
Abstract: A liquid blow molding apparatus comprises: a mold (4) in which a preform (2) is to be placed; and a nozzle unit (6) having a supply port (9) capable of supplying a liquid from above into the preform (2) placed in the mold (4), wherein the nozzle unit (6) includes a seal body (13) that is movable among a closed position at which supply of the liquid through the supply port (9) is blocked, a first open position at which supply of the liquid through only part of the supply port (9) in a circumferential direction is allowed, and a second open position at which supply of the liquid through the whole supply port (9) in the circumferential direction is allowed.
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公开(公告)号：US20220297371A1
公开(公告)日：2022-09-22
申请号：US17639121
申请日：2020-07-01
Applicant: YOSHINO KOGYOSHO CO., LTD.
Inventor： Hideaki HOSHINO , Mitsuru SHIOKAWA , Yuichi OKUYAMA
IPC: B29C49/58
Abstract: A blow molding apparatus is configured to blow mold a preform into a container by supplying a pressurized incompressible fluid into the preform from a pressurized fluid supply unit. The blow molding apparatus includes: a drawing and discharging flow path connected to a drawing orifice; a fluid drawing source to apply drawing force to the drawing and discharging flow path, after blow molding is completed and after and/or while the blow nozzle is moved to a standby position, to draw the incompressible fluid adhering to the blow nozzle; and a pressurized gas supply source to supply a pressurized gas to the drawing and discharging flow path, after blow molding is completed and after a next preform is placed into the mold, to cause the incompressible fluid inside the drawing and discharging flow path to flow out toward the inside of the preform or toward the inside of a container.
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