JP6095679B2 - 複数回のブロー成形における、逆延伸ロッドおよび/または底部押上部材の利用 - Google Patents
複数回のブロー成形における、逆延伸ロッドおよび/または底部押上部材の利用 Download PDFInfo
- Publication number
- JP6095679B2 JP6095679B2 JP2014541401A JP2014541401A JP6095679B2 JP 6095679 B2 JP6095679 B2 JP 6095679B2 JP 2014541401 A JP2014541401 A JP 2014541401A JP 2014541401 A JP2014541401 A JP 2014541401A JP 6095679 B2 JP6095679 B2 JP 6095679B2
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- height
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- mold
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- 238000000071 blow moulding Methods 0.000 title claims description 37
- 239000006260 foam Substances 0.000 claims description 34
- 238000000465 moulding Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000010097 foam moulding Methods 0.000 claims 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 11
- 239000005020 polyethylene terephthalate Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000012611 container material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010101 extrusion blow moulding Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010102 injection blow moulding Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
- B29L2031/716—Bottles of the wide mouth type, i.e. the diameters of the bottle opening and its body are substantially identical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
本出願は、2011年11月15日に出願した米国仮出願第61/560,122号の利益を主張するものである。本願には上記出願の開示内容の全体が参照により含まれる。
本開示は一般的にプラスチック容器の形成および充填に関する。より具体的には、本開示は、逆延伸ロッドおよび/または底部押上部材を用いて、複数回のブロー成形が行われる容器を形成する工程に関する。
本節は本開示に関する背景情報を提供するものであるが、それが必ずしも先行技術であるとは限らない。
%結晶化度=(ρ−ρa/ρc−ρa)×100
容器がブロー成形されると、上記容器に製品が充填される。
本節は開示内容の全体概要を提供するものであり、開示内容の全ての範囲または全ての特徴を包括的に開示したものではない。
本明細書に記載されている図面は、選択した実施形態を図示する目的でのみ使用されるものであって、実行し得る全ての実施形態を示すものではなく、本開示の範囲を限定するものでもない。
例示的な実施形態について、添付する図面を参照してより詳細に説明する。
容器10が十分に構造上の結合性を有すること、などが可能となるように、容器11の材料を所望の通りに確実に分布させるよう設計することができる。
ブローノズル18は、流体(空気)を第1の型12に導入して第1の形状14を形成する従来の様式であってよい。ブローノズル28はまた、続いて第2の型16に流体を導入し、第2の形状18を形成してもよい。幾つかの実施形態においては、同一のブローノズル28が第1の形状14と第2の形状18を形成するが、他の実施形態においては、第1の形状14と第2の形状18をそれぞれ形成する個別のブローノズルが用いられる。
Claims (10)
- 容器の形成方法であって、
上記容器の第1の高さを有する第1フォームをブロー成形する工程と、
上記第1フォームのブロー成形後に上記容器の第2の高さを有する第2フォームをブロー成形する工程と、
上記容器の上記第2フォームをブロー成形する前に上記容器の上記第1フォームの高さを、上記第1の高さから、上記第1の高さおよび上記第2の高さよりも低い中間高さにまで減少させる工程と、を含み、
上記第1フォームの上記高さを減少させる工程は、上記第1フォームの底部を上記第1フォームの上端部に向かって押し上げる、逆延伸ロッドを用いて上記高さを減少させる工程を含み、
上記第1フォームをブロー形成する工程は、上記第1フォームが第1の高さを有するよう、第1の型の中でブロー成形する工程を含み、
上記第2フォームをブロー成形する工程は、上記第2フォームが第2の高さを有するよう、第2の型の中でブロー成形する工程を含み、
上記第1フォームの上記高さを減少させる工程は、上記第2フォームをブロー成形する前に、上記第2の型の中で行われることを特徴とする方法。 - 上記逆延伸ロッドを加熱する工程をさらに含み、上記第1フォームの上記高さを減少させる工程は、加熱された上記逆延伸ロッドを用いて上記高さを減少させる工程を含むことを特徴とする、請求項1に記載の方法。
- 上記第1フォームの上記高さを減少させる工程は、上記第2フォームの底部の表面を形成するために、上記逆延伸ロッドを用いて上記高さを減少させる工程を含むことを特徴とする、請求項1に記載の方法。
- 上記第2の高さは、上記第1の高さよりも1パーセントから30パーセント(1%〜30%)低いことを特徴とする、請求項1に記載の方法。
- 延伸ロッドと、逆延伸ロッドとの間で上記容器の底部を協調して保持する工程をさらに含むことを特徴とする、請求項1に記載の方法。
- 容器を成形するための成形システムであって、
上記容器の第1フォームをブロー成形可能な、第1のブロー成形用型と、
上記容器の第2フォームをブロー成形可能な、第2のブロー成形用型と、
上記容器の上記第2フォームをブロー成形する前に上記容器の上記第1フォームの高さを、上記第1フォームの底部を上記第1フォームの上端部に向かって押し上げることにより減少可能な、逆延伸ロッドと、を備え、
上記第1のブロー成形用型は、上記第1フォームが第1の高さを有するよう成形するために上記第1の高さを有し、
上記第2のブロー成形用型は、上記第2フォームが第2の高さを有するよう成形するために上記第2の高さを有し、
上記逆延伸ロッドが、上記第1フォームの高さを、上記第1の高さから、上記第1の高さおよび上記第2の高さよりも低い中間高さに、上記第1フォームが第2の型の中に配置されている間に減少可能であることを特徴とする、成形システム。 - 上記容器の上記第1フォームの上記高さを減少させながら上記容器の上記第1フォームを加熱するために、上記逆延伸ロッドを加熱するヒーターをさらに備えることを特徴とする、請求項6に記載の成形システム。
- 上記逆延伸ロッドが、上記第2フォームの底部表面を形成可能であることを特徴とする、請求項6に記載の成形システム。
- 上記逆延伸ロッドが、上記第1フォームが第1の型の中に配置されている間に上記第1フォームの上記高さを減少可能であることを特徴とする、請求項6に記載の成形システム。
- 延伸ロッドをさらに備え、上記延伸ロッドおよび上記逆延伸ロッドは、上記延伸ロッドおよび上記逆延伸ロッドの間で上記容器の底部を協調して保持可能であることを特徴とする、請求項6に記載の成形システム。
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US61/560,122 | 2011-11-15 | ||
PCT/US2012/064793 WO2013074502A1 (en) | 2011-11-15 | 2012-11-13 | Plural blow utilization of counter stretch rod and/or base pushup |
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DE102017101216A1 (de) * | 2017-01-23 | 2018-07-26 | Krones Ag | Verfahren zum Herstellen von Kunststoffbehältnissen mit zueinander beweglichen Bodenbereichen |
EP3737546A4 (en) | 2018-01-11 | 2021-11-17 | Husky Injection Molding Systems Luxembourg IP Development S.à.r.l | PROCESS AND APPARATUS FOR GIVING A FINAL SHAPE TO CONTAINERS USING A LIQUID TO BE CONTAINED IN SUCH CONTAINERS |
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SE462591B (sv) * | 1988-12-29 | 1990-07-23 | Plm Ab | Saett och anordning foer framstaellning av behaallare |
FR2658119B1 (fr) * | 1990-02-13 | 1992-06-05 | Sidel Sa | Procede et installation pour fabriquer des recipients, tels que des bouteilles, en polyethyleneterephtalate, resistant a des conditions thermiques relativement severes au cours de leur utilisation. |
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FR2745744B1 (fr) * | 1996-03-05 | 1998-04-10 | Sidel Sa | Procede et installation pour la fabrication de recipients, notamment des bouteilles, en matiere thermoplastique |
US6277321B1 (en) * | 1998-04-09 | 2001-08-21 | Schmalbach-Lubeca Ag | Method of forming wide-mouth, heat-set, pinch-grip containers |
JP2003103609A (ja) * | 2001-09-28 | 2003-04-09 | Toyo Seikan Kaisha Ltd | 耐熱性ボトルの2段ブロー成形法 |
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