JP5379577B2 - 押出成形金型 - Google Patents
押出成形金型 Download PDFInfo
- Publication number
- JP5379577B2 JP5379577B2 JP2009153838A JP2009153838A JP5379577B2 JP 5379577 B2 JP5379577 B2 JP 5379577B2 JP 2009153838 A JP2009153838 A JP 2009153838A JP 2009153838 A JP2009153838 A JP 2009153838A JP 5379577 B2 JP5379577 B2 JP 5379577B2
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- JP
- Japan
- Prior art keywords
- passage
- mandrel
- peripheral surface
- child
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- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/695—Flow dividers, e.g. breaker plates
- B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
- B29C48/705—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows in the die zone, e.g. to create flow homogeneity
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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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Description
3 周面
5 マンドレル
7 ダイボディー
9 間隙
11 一端
13 他端
15 凹状拡流部
17、17A、17B 導入路
171、173、176 親通路
172、174、177 子通路
175、178 孫通路
19 スパイラル溝
21 フランジ
23 コア
24 リップ部
25 縮径部
27 端部
29 内周面
31、37 底面
33 アダプターノズル
35 始端
39 起伏面
S1、S3 親通路の通路面積
S2、S4 子通路の通路面積
S5 孫通路の通路面積
Claims (3)
- 周面を有し一端と他端が画定された軸状のマンドレルを、シリンダ状のダイボディーに挿入し、前記マンドレルと前記ダイボディーとの間隙に供給される熱可塑性樹脂を、前記マンドレルの一端から他端へ向かう押出方向に導く押出成形金型であって、
前記マンドレルの周面に形成され、該マンドレルの一端側から他端側へ向けて螺旋状に延びるスパイラル溝と、
前記マンドレルの周面に形成され、前記スパイラル溝の始端側へ熱可塑性樹脂を導く導入路と、を備え、
前記導入路が、親通路と、該親通路から2つに分岐する子通路と、を含み、
前記子通路の通路面積を、前記親通路の通路面積を二等分した面積と等しくしたことを特徴とする押出成形金型。 - 前記導入路が、前記各子通路から2つに分岐する孫通路を含み、
前記孫通路の通路面積を、前記子通路の通路面積を二等分した面積と等しくしたことを特徴とする請求項1に記載の押出成形金型。 - 前記マンドレルの周面に形成され、該周面の周方向に両端部を互いに反対向きに延ばし、該両端部がそれぞれ延びるに従って狭くなる凹状拡流部を、前記導入路と前記スパイラル溝との間に備えた請求項1または請求項2に記載の押出成形金型。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009153838A JP5379577B2 (ja) | 2009-06-29 | 2009-06-29 | 押出成形金型 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009153838A JP5379577B2 (ja) | 2009-06-29 | 2009-06-29 | 押出成形金型 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011005824A JP2011005824A (ja) | 2011-01-13 |
JP5379577B2 true JP5379577B2 (ja) | 2013-12-25 |
Family
ID=43563050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009153838A Active JP5379577B2 (ja) | 2009-06-29 | 2009-06-29 | 押出成形金型 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5379577B2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104029370A (zh) * | 2014-06-10 | 2014-09-10 | 宁波长壁流体动力科技有限公司 | 一种冷喂料橡胶挤出机机头 |
JP7240803B2 (ja) | 2017-02-24 | 2023-03-16 | 三菱鉛筆株式会社 | 筆記具 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201112475D0 (en) | 2011-07-20 | 2011-08-31 | Kritis Plastika | Concentric co-extrusion die |
ES2775052T3 (es) | 2017-11-07 | 2020-07-23 | W Mueller Gmbh | Distribuidor anular para un cabezal de extrusión para la producción de una pieza moldeada en forma tubular a partir de plástico termoplástico |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5829209B2 (ja) * | 1977-09-16 | 1983-06-21 | 株式会社プラスチック工学研究所 | 環状ダイ |
JP2512668B2 (ja) * | 1991-11-27 | 1996-07-03 | ゼネラル・エレクトリック・カンパニイ | モジュ―ル式管状押出しヘッド |
NL9201457A (nl) * | 1992-08-14 | 1994-03-01 | Rollepaal B V Maschf De | Verdeelkop voor het uit één of meer stromen geëxtrudeerd thermoplastisch kunststofmateriaal vormen van een buisvormig profiel. |
-
2009
- 2009-06-29 JP JP2009153838A patent/JP5379577B2/ja active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104029370A (zh) * | 2014-06-10 | 2014-09-10 | 宁波长壁流体动力科技有限公司 | 一种冷喂料橡胶挤出机机头 |
JP7240803B2 (ja) | 2017-02-24 | 2023-03-16 | 三菱鉛筆株式会社 | 筆記具 |
JP7498685B2 (ja) | 2017-02-24 | 2024-06-12 | 三菱鉛筆株式会社 | 筆記具 |
Also Published As
Publication number | Publication date |
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JP2011005824A (ja) | 2011-01-13 |
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