JP4781805B2 - 中栓の製造方法 - Google Patents
中栓の製造方法 Download PDFInfo
- Publication number
- JP4781805B2 JP4781805B2 JP2005363362A JP2005363362A JP4781805B2 JP 4781805 B2 JP4781805 B2 JP 4781805B2 JP 2005363362 A JP2005363362 A JP 2005363362A JP 2005363362 A JP2005363362 A JP 2005363362A JP 4781805 B2 JP4781805 B2 JP 4781805B2
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- JP
- Japan
- Prior art keywords
- score
- container
- mold
- inner plug
- lower mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0081—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of objects with parts connected by a thin section, e.g. hinge, tear line
Description
Claims (2)
- 有底筒状容器の開口端部を密封して遮蔽する遮蔽部と、該遮蔽部の外周縁から該容器側に延設されて該容器の開口端部と嵌着する嵌着部と、該遮蔽部から該容器と逆方向に突出して設けられた筒状のノズル部と、該ノズル部の内周側に注出口を形成するスコア部と、該スコア部の内周位置から該容器と逆方向に延設した連結部を介して、該ノズル部の内周側に設けられたプルリングと、該遮蔽部の該容器側表面に配置したガスバリア性を有するフィルムとを備える合成樹脂製の中栓の製造方法において、
前記遮蔽部と、前記嵌着部と、前記ノズル部と、前記スコア部と、前記プルリングとを備え、該スコア部は、該プルリングを引くことによって開封可能な第1スコア部と、平面視該プルリングの内方部分に位置し、第1スコア部よりも肉厚な第2スコア部とからなる前記中栓の予備成形体の外形形状に沿った形状のキャビティを備える金型の前記遮蔽部の前記容器側表面を形成する位置に、前記フィルムを配置するフィルム配置工程と、
前記フィルムが配置された前記金型を閉じて、該金型の前記遮蔽部の前記容器と逆方向側表面を形成する位置の中央部に設けられたゲートから前記キャビティに溶融した合成樹脂を射出する射出成形工程と、
前記射出成形工程により射出成形された前記中栓の予備成形体の前記第2スコア部に切込み形成手段を押圧して第2スコア部を第1スコア部とともに開封可能とする切込みを形成するプレス工程と、
前記プレス工程により切込みが成形された前記中栓を脱型する脱型工程とを備えることを特徴とする中栓の製造方法。 - 前記金型は、上金型と下金型とからなり、
前記下金型は、前記フィルム配置工程を行う第1位置と、射出成形工程を行う第2位置と、プレス工程を行う第3位置と、脱型工程を行う第4位置とのそれぞれに各1つ配置され、各下金型は第1〜第4位置の間で移動自在に設けられていることを特徴とする請求項1記載の中栓の製造方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005363362A JP4781805B2 (ja) | 2005-12-16 | 2005-12-16 | 中栓の製造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2005363362A JP4781805B2 (ja) | 2005-12-16 | 2005-12-16 | 中栓の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007160852A JP2007160852A (ja) | 2007-06-28 |
JP4781805B2 true JP4781805B2 (ja) | 2011-09-28 |
Family
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Family Applications (1)
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JP2005363362A Active JP4781805B2 (ja) | 2005-12-16 | 2005-12-16 | 中栓の製造方法 |
Country Status (1)
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JP (1) | JP4781805B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5254571B2 (ja) * | 2007-06-04 | 2013-08-07 | 北海製罐株式会社 | 注出口栓 |
JP6281758B2 (ja) * | 2011-09-30 | 2018-02-21 | 株式会社吉野工業所 | 合成樹脂製蓋部材の製造方法 |
JP6311945B2 (ja) * | 2016-10-05 | 2018-04-18 | 株式会社吉野工業所 | 合成樹脂製蓋部材 |
JP7366491B2 (ja) * | 2019-05-23 | 2023-10-23 | 株式会社吉野工業所 | バリアキャップ |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0655382B2 (ja) * | 1989-07-27 | 1994-07-27 | 凸版印刷株式会社 | 注出栓の製造方法 |
JP2001088857A (ja) * | 1999-09-17 | 2001-04-03 | Dainippon Printing Co Ltd | フィルムインサート注出口 |
JP4145085B2 (ja) * | 2002-07-16 | 2008-09-03 | 三笠産業株式会社 | フィルムインサート注出口 |
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2005
- 2005-12-16 JP JP2005363362A patent/JP4781805B2/ja active Active
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Publication number | Publication date |
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JP2007160852A (ja) | 2007-06-28 |
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