公开(公告)号：US20200171733A1

公开(公告)日：2020-06-04

申请号：US16628246

申请日：2018-07-05

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Mitsuru SHIOKAWA ,  Yuichi OKUYAMA

IPC: B29C49/12 ,  B29C49/06

Abstract: An apparatus for manufacturing a liquid container, in which a nozzle unit has a seal body disposed in a supply path, the seal body has an annular first seal portion, an annular second seal portion and a spare supply path extending from a flow inlet located between the first seal portion and the second seal portion to a flow outlet located closer to a tip side of the seal body than the second seal portion, and the seal body can move between a blocked position where the first seal portion sits on the supply path, a spare supply position where the first seal portion separates from the supply path and the second seal portion sits on the supply path and an open position where the first seal portion separates from the supply path and the second seal portion separates from the supply path.

公开(公告)号：US20200001515A1

公开(公告)日：2020-01-02

申请号：US16492219

申请日：2018-01-25

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Mitsuru SHIOKAWA ,  Hideaki HOSHINO ,  Shinichi TABATA

IPC: B29C49/46 ,  B29C49/24

Abstract: A container manufacturing method includes: a liquid discharge step in which a predetermined amount of liquid (L) in the container (C) is discharged to the outside by supplying pressurized air from air holes (13) provided in a blow molding mold (11) to a cavity (12) and pushing an outer surface of the container (C) after molding by the air; and a headspace forming step in which a headspace (HS) is formed in the container (C) by separating a filling nozzle (22) from a mouth portion (Ca) of the container (C) in a state in which a predetermined amount of liquid (L) is discharged to the outside.

公开(公告)号：US20190283307A1

公开(公告)日：2019-09-19

申请号：US16309437

申请日：2017-04-20

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Mitsuru SHIOKAWA ,  Shinichi TABATA

IPC: B29C49/48 ,  B29C49/46 ,  B29C49/56

Abstract: A container production method by liquid blow molding has a liquid blow molding step of supplying a pressurized liquid into a preform disposed in a metal mold to mold the preform into a container having a trunk that has a flat shape in a plan view and holds the liquid; and a transferring step of taking the container out from the mold and transferring the container in an approximate short axis direction of the trunk.

公开(公告)号：US20190168438A1

公开(公告)日：2019-06-06

申请号：US16309888

申请日：2017-04-20

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Shigeki MORIKAMI ,  Mitsuru SHIOKAWA

IPC: B29C49/12 ,  B29C49/06 ,  B29C49/58

Abstract: A liquid blow molding apparatus includes a rod guide interposed between the seal body and the stretching rod to suppress misalignment in the radial direction of the stretching rod with respect to the seal body and to seal a gap between the seal body and the stretching rod in a fluid-tight manner, and the seal body has a detachable portion detachably attached to the main body of the seal body to hold the rod guide between the detachable portion and the main body.

公开(公告)号：US20210178652A1

公开(公告)日：2021-06-17

申请号：US17270124

申请日：2019-06-25

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Hideaki HOSHINO ,  Mitsuru SHIOKAWA

IPC: B29C49/46 ,  B29C49/12

Abstract: A liquid container manufacturing method includes: a liquid blow molding step of molding a preform into a liquid container having a shape conforming to an inner surface of a blow-molding mold, by supplying a pressurized liquid to an interior of the preform through a supply path in a state where a blow nozzle is engaged to a mouth of the preform; and a headspace forming step of forming a headspace in the liquid container, by discharging the liquid from an interior of the liquid container through a discharge port in a discharge rod extending to the interior of the liquid container through the blow nozzle, by introducing a pressurized gas to the interior of the liquid container through a gas inflow path in a state where the supply path is closed.

公开(公告)号：US20210178651A1

公开(公告)日：2021-06-17

申请号：US16761624

申请日：2018-10-03

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Mitsuru SHIOKAWA ,  Yuichi OKUYAMA

IPC: B29C49/46 ,  B29C49/12

Abstract: A liquid blow molding method of molding a liquid container containing a content liquid from a preform, includes a nozzle engagement step of engaging a blow nozzle with a mouth portion of the preform; a molding step of molding the preform into a container of a predetermined shape by supplying a pressurized liquid into the preform; a suck-back step of sucking back a predetermined amount of liquid from the inside of the container to a supply channel by operating a pump in a reverse direction with the container put in the upside-down posture while the blow nozzle is engaged with the mouth portion; and a nozzle separation step of separating the blow nozzle from the mouth portion with the container put in the upright posture.

公开(公告)号：US20210060845A1

公开(公告)日：2021-03-04

申请号：US16965241

申请日：2018-11-13

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Mitsuru SHIOKAWA ,  Hideaki HOSHINO ,  Yuichi OKUYAMA

IPC: B29C49/12 ,  B29C49/46

Abstract: A liquid blow molding device includes: a supply block including a supply path; a blow nozzle detachably attached to the supply block; a pressurized liquid supply unit configured to supply the pressurized liquid to the blow nozzle; an annular-shaped sealing surface that is provided in a portion of the supply block that is located between an inner circumferential surface defining the supply path and the outlet and that surrounds an entire circumference of the outlet; and a sealing body that is disposed inside the supply path and that is displaceable between a closing position, in which the sealing body abuts against the sealing surface to close the outlet, and an opening position, in which the sealing body is spaced from the sealing surface to open the outlet.

公开(公告)号：US20200331186A1

公开(公告)日：2020-10-22

申请号：US16760384

申请日：2018-10-03

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Mitsuru SHIOKAWA ,  Yuichi OKUYAMA

IPC: B29C49/46 ,  B29C49/42

Abstract: A liquid blow molding method of molding a synthetic resin preform having a mouth portion into a liquid container of a predetermined shape, including: an air-liquid replacement step of supplying a liquid into the preform from the mouth portion through a blow nozzle and discharging the air inside the preform to the outside; an air-liquid separation step of separating the air from the liquid inside the preform by vibrating the preform; 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.

公开(公告)号：US20190248062A1

公开(公告)日：2019-08-15

申请号：US16340368

申请日：2017-08-09

Applicant: YOSHINO KOGYOSHO CO., LTD.

Inventor： Mitsuru SHIOKAWA ,  Yuichi OKUYAMA

IPC: B29C49/28 ,  B29C49/02 ,  B29C45/17

Abstract: A liquid blow molding device includes a cylindrical nozzle having, at a lower end thereof, a seal surface that, when the nozzle is inserted into a mouth part, abuts on a step surface provided at an inner circumferential surface of a preform in an axial direction to seal a gap between the nozzle and the inner circumferential surface of the preform. The preform has, at the inner circumferential surface thereof, the step surface to be abutted on by the seal surface of the nozzle in the axial direction. The step surface is tapered to be higher on a radial inner side than on a radial outer side.