Liquid blow-molding method for delamination container
US-2017312978-A1 · Nov 2, 2017 · US
Liquid blow molding device and liquid blow molding method
US11325296B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11325296-B2 |
| Application number | US-201716081119-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 2, 2017 |
| Priority date | Mar 11, 2016 |
| Publication date | May 10, 2022 |
| Grant date | May 10, 2022 |
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- Title
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- Abstract
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- Assignees and inventors
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Abstract
Official abstract text for this publication.
A liquid blow molding device and a liquid blow molding method are configured to supply pressurized liquid to a preform mounted to a mold to mold the preform into a shape along a cavity of the mold, and includes a blow nozzle fitted into a mouth portion of the preform, a plunger pump configured to supply pressurized liquid to the preform through the blow nozzle and a controller configured to control operation of the plunger pump. The controller controls operation of the plunger pump by position control in which a plunger of the plunger pump is moved from an original position to a predetermined final position with a predetermined operating force.
First claim
Opening claim text (preview).
The invention claimed is: 1. A liquid blow molding device configured to supply pressurized liquid to a bottomed tubular preform mounted to a blow molding mold to form the preform into a shape along a cavity of the mold, comprising: a blow nozzle configured to be fitted into a mouth portion of the preform; a plunger pump configured to supply pressurized liquid to the preform through the blow nozzle; and a controller configured to control operation of the plunger pump, wherein the controller controls operation of the plunger pump, during supplying of the pressurized liquid to the preform for stretching the preform, by position control in which a plunger of the plunger pump is moved from an original position with a predetermined operating force by operating a motor at a predetermined torque, and is stopped at a predetermined final position and held to the final position for a predetermined time period, and not by torque control in which the plunger is first operated with a predetermined operating force for a predetermined time period until a blow pressure of liquid exceeds a predetermined value, and then the operating force is changed. 2. The liquid blow molding device according to claim 1 , wherein the controller controls the plunger pump such that, after moving the plunger from the original position to the final position with the predetermined operating force and returning the plunger from the final position by a predetermined return distance, holding the plunger to a position where the plunger is returned for a predetermined time period. 3. The liquid blow molding device according to claim 1 , wherein the plunger pump is a servo plunger type in which an electric motor is used as a driving source, and the controller controls operation of the electric motor. 4. The liquid blow molding device according to claim 1 , comprising a seal body configured to open/close the blow nozzle, wherein when open operation of the seal body is started, supply of pressurized liquid from the plunger pump into the preform is started.
Assignees
Inventors
Classifications
Measuring, controlling or regulating · CPC title
characterised by using particular environment or blow fluids other than air · CPC title
- B29C49/12Primary
Stretching rods · CPC title
Blowing means · CPC title
Bottles · CPC title
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Frequently asked questions
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- What does patent US11325296B2 cover?
- A liquid blow molding device and a liquid blow molding method are configured to supply pressurized liquid to a preform mounted to a mold to mold the preform into a shape along a cavity of the mold, and includes a blow nozzle fitted into a mouth portion of the preform, a plunger pump configured to supply pressurized liquid to the preform through the blow nozzle and a controller configured to con…
- Who is the assignee on this patent?
- Okuyama Yuichi, Suyama Kenichi, Yoshino Kogyosho Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B29C49/12. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 10 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).