JP5966322B2 - ブロー成形金型 - Google Patents
ブロー成形金型 Download PDFInfo
- Publication number
- JP5966322B2 JP5966322B2 JP2011245071A JP2011245071A JP5966322B2 JP 5966322 B2 JP5966322 B2 JP 5966322B2 JP 2011245071 A JP2011245071 A JP 2011245071A JP 2011245071 A JP2011245071 A JP 2011245071A JP 5966322 B2 JP5966322 B2 JP 5966322B2
- Authority
- JP
- Japan
- Prior art keywords
- resin container
- blow molding
- container
- mold
- blow
- 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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Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/40—Details of walls
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C2049/4879—Moulds characterised by mould configurations
- B29C2049/4882—Mould cavity geometry
-
- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/0685—Compression blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29K2905/00—Use of metals, their alloys or their compounds, as mould material
- B29K2905/02—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2501/00—Containers having bodies formed in one piece
- B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
- B65D2501/0081—Bottles of non-circular cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
本実施形態において、角型樹脂製容器1は、例えば、公知の射出成形や圧縮成形などにより製造された熱可塑性樹脂からなる有底筒状のプリフォームを二軸延伸ブロー成形によって成形される容器であり、口部2、肩部3、胴部4、及び底部5を備え、前記胴部の高さ方向に直交する横断面形状が角型で、矩形状の内圧調整パネル46が、前記胴部4の側壁部41に形成されている構成としてある。
特に、ポリエチレンテレフタレートなどのエチレンテレフタレート系熱可塑性ポリエステルが、好適に使用される。また、アクリロニトリル樹脂,ポリプロピレン,プロピレン−エチレン共重合体,ポリエチレンなども使用することができる。
尚、本実施形態の角型樹脂製容器1の胴部4においては、内圧調整パネル46除く胴部4の側壁部41の外表面を離型抵抗低減化面43としているが、必要に応じて前記内圧調整パネル46も離型抵抗低減化面43としてもよい。
そして、前記胴部4の肉厚は0.5mm以下、好ましくは0.2乃至0.4mmと薄肉であって、前記離型抵抗低減化面43の水平方向加工部の深さは3乃至30μmであり、このような構成とすることにより、薄肉でありながら光沢性、透明性等の外観を良好に維持した角型樹脂製容器とすることができる。
また、前記水平加工部の隣り合う山頂間の距離が0.1乃至1.0mmとすることにより、より一層、光沢性、透明性等の外観を良好に維持した角型樹脂製容器とすることができる。
そして、このように、製造された角型樹脂製容器1は、胴部4の側壁部41の外表面が離型抵抗低減化面43となるため、ブロー成形金型8からの離型抵抗が大幅に低減され、また、コーナ面部42を容器内部へ折り曲げる力が発生しないのでコーナ面部42の凹みが防止される。
従って、ブロー成形金型8のキャビティ表面の切削加工及び仕上げ後に、改めて粗面にする表面処理加工を行うことなく離型抵抗を大幅に低減することが可能となり、薄肉の角型樹脂製容器において、顕著に光沢性、透明性等の外観を良好にすることが可能となる。
また、前記キャビティ表面の加工方法としては、例えば、ボールエンドミルの直径を8mmとし、送りピッチを0.4mmとすることでスキャロップハイトが5.3μmとなる。
そして、スキャロップハイトが3μm未満の場合は、角型樹脂製容器1のブロー金型8からの離型抵抗が増加すると共に、エアー抜き性が悪いため部分的に角型樹脂製容器1とキャビティの面との間に空気が残留し、角型樹脂製容器1の前述した胴部4の側壁部41における離型抵抗低減化面43の外表面にあばた状の光沢性の低い部分が現れる。一方、30μmを越えると前述した角型樹脂製容器1の離型性は向上するが、光沢性や透明性が著しく低下すると共に、落下等の衝撃が加わった場合に外表面が層剥離することがある。
2 口部
3 肩部
4 胴部
41 側壁部
42 コーナ面部
43 離型抵抗低減化面(水平加工部)
44 テーパ部
45 環状凹部
46 内圧調整パネル
47 縦溝
5 底部
7 加工跡
8 ブロー成形金型
81 パーティング面
Claims (1)
- 胴部の肉厚が0.5mm以下の角型樹脂製容器を二軸延伸ブロー成形するブロー成形金型であって、
前記胴部の側壁部に対応するブロー成形金型のキャビティ表面のボールエンドミルによる切削加工の加工跡としてのスキャロップハイトが3乃至30μm、前記スキャロップハイトの隣り合う山頂間の距離が0.1乃至1.0mmであり、
高さ方向に沿ってパーティング面を有し、前記キャビティ表面にボールエンドミルによる切削加工の方向に沿って形成される前記スキャロップハイトが高さ方向に直交して延在することを特徴とするブロー成形金型。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011245071A JP5966322B2 (ja) | 2011-11-09 | 2011-11-09 | ブロー成形金型 |
CN201280054759.7A CN103930351B (zh) | 2011-11-09 | 2012-10-02 | 吹塑成型模具 |
PCT/JP2012/006290 WO2013069194A1 (ja) | 2011-11-09 | 2012-10-02 | 角型樹脂製容器及びブロー成形金型 |
US14/258,370 US9382029B2 (en) | 2011-11-09 | 2014-04-22 | Angular resin container and blow molding die |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011245071A JP5966322B2 (ja) | 2011-11-09 | 2011-11-09 | ブロー成形金型 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013100122A JP2013100122A (ja) | 2013-05-23 |
JP5966322B2 true JP5966322B2 (ja) | 2016-08-10 |
Family
ID=48288992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011245071A Active JP5966322B2 (ja) | 2011-11-09 | 2011-11-09 | ブロー成形金型 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9382029B2 (ja) |
JP (1) | JP5966322B2 (ja) |
CN (1) | CN103930351B (ja) |
WO (1) | WO2013069194A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018070174A1 (ja) * | 2016-10-14 | 2018-04-19 | ニプロ株式会社 | 容器 |
JP7104876B2 (ja) * | 2018-02-28 | 2022-07-22 | キョーラク株式会社 | 容器及びラベル貼着方法 |
JP7330632B2 (ja) * | 2019-11-29 | 2023-08-22 | 株式会社吉野工業所 | 積層剥離容器 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3474493A (en) * | 1967-10-18 | 1969-10-28 | Charles F Staples | Molding machine for making compacted abrasive articles |
JP2833317B2 (ja) * | 1992-01-16 | 1998-12-09 | 凸版印刷株式会社 | ブロー成形金型及びブロー成形金型の製造方法並びにブロー成形方法 |
JPH0726312U (ja) * | 1993-06-29 | 1995-05-16 | 東洋製罐株式会社 | 特異な光沢を付与した包装容器 |
JP3435972B2 (ja) * | 1996-03-26 | 2003-08-11 | トヨタ自動車株式会社 | 成形型の製造方法 |
BR9916253A (pt) * | 1998-12-14 | 2001-10-02 | Conix Corp | Aparelho para moldar por sopro artigos tendo um acabamento superficial liso, e, processo de moldagem por sopro de artigos |
JP2002166916A (ja) * | 2000-11-29 | 2002-06-11 | Yoshino Kogyosho Co Ltd | 合成樹脂製2軸延伸ブロー成形軽量壜体容器及びその製造方法 |
JP4333253B2 (ja) * | 2003-07-16 | 2009-09-16 | 東洋製罐株式会社 | ブロー成形金型及びその製造方法 |
JP2007331111A (ja) * | 2006-06-12 | 2007-12-27 | Olympus Corp | 鏡面駒、金型装置、光学素子、及び鏡面駒の加工方法 |
KR101157416B1 (ko) * | 2007-01-26 | 2012-06-21 | 도요 세이칸 가부시키가이샤 | 고광택 다층 플라스틱 용기 |
JP2009241971A (ja) | 2008-03-31 | 2009-10-22 | Yoshino Kogyosho Co Ltd | 合成樹脂製角型ボトル |
JP5239480B2 (ja) * | 2008-04-23 | 2013-07-17 | 東洋製罐グループホールディングス株式会社 | ポリエチレンテレフタレートボトル |
-
2011
- 2011-11-09 JP JP2011245071A patent/JP5966322B2/ja active Active
-
2012
- 2012-10-02 CN CN201280054759.7A patent/CN103930351B/zh active Active
- 2012-10-02 WO PCT/JP2012/006290 patent/WO2013069194A1/ja active Application Filing
-
2014
- 2014-04-22 US US14/258,370 patent/US9382029B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US9382029B2 (en) | 2016-07-05 |
JP2013100122A (ja) | 2013-05-23 |
US20140224814A1 (en) | 2014-08-14 |
CN103930351B (zh) | 2016-06-29 |
CN103930351A (zh) | 2014-07-16 |
WO2013069194A1 (ja) | 2013-05-16 |
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