JP6446234B2 - 押出機用スクリュ、スクリュエレメント、押出機および押出方法 - Google Patents
押出機用スクリュ、スクリュエレメント、押出機および押出方法 Download PDFInfo
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- JP6446234B2 JP6446234B2 JP2014218705A JP2014218705A JP6446234B2 JP 6446234 B2 JP6446234 B2 JP 6446234B2 JP 2014218705 A JP2014218705 A JP 2014218705A JP 2014218705 A JP2014218705 A JP 2014218705A JP 6446234 B2 JP6446234 B2 JP 6446234B2
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Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Description
原料の搬送方向に沿う直線状の軸線を有し、当該軸線を中心に回転するスクリュ本体と、前記スクリュ本体の周方向に沿う外周面に設けられ、前記スクリュ本体の回転時に前記原料を前記スクリュ本体の軸方向に搬送する螺旋状に捩れたフライトと、前記スクリュ本体に設けられた通路と、具備している。前記通路は、前記フライトにより搬送された前記原料が流入する入口と、前記入口から流入した前記原料が流れる通路本体と、前記通路本体を流れた前記原料が前記スクリュ本体の前記外周面に帰還する出口と、を含む。
以下、第1の実施形態について、図1ないし図11を参照して説明する。
図12は、第1の実施形態と関連性を有する変形例1を示している。
図13ないし図15は、第1の実施形態と関連性を有する変形例2を示している。
図16は、第1の実施形態と関連性を有する変形例3を示している。
図17は、第1の実施形態と関連性を有する変形例4を示している。
図18は、変形例4をさらに発展させた変形例5を示している。
図19ないし図25は、第2の実施形態を開示している。第2の実施形態は、スクリュ本体37に関する事項が第1の実施形態と相違している。それ以外の第2の押出機3の構成は、基本的に第1の実施形態と同様である。そのため、第2の実施形態において、第1の実施形態と同一の構成部分には同一の参照符号を付して、その説明を省略する。
図26ないし図35は、第3の実施形態を開示している。第3の実施形態は、スクリュ本体37に関する事項が第1の実施形態と相違している。それ以外の第2の押出機3の構成は、基本的に第1の実施形態と同様である。そのため、第3の実施形態において、第1の実施形態と同一の構成部分には同一の参照符号を付して、その説明を省略する。
図34および図35は、第3の実施形態と関連性を有する変形例を開示している。
図36は、第4の実施形態を開示している。第4の実施形態は、回転軸38に関する事項が第3の実施形態と相違している。それ以外のスクリュ21の構成は、基本的に第3の実施形態と同様である。そのため、第4の実施形態において、第3の実施形態と同一の構成部分には同一の参照符号を付してその説明を省略する。
Claims (17)
- 原料を混練しつつ搬送する押出機用スクリュであって、
前記原料の搬送方向に沿う直線状の軸線を有し、当該軸線を中心に回転するスクリュ本体と、
前記スクリュ本体の周方向に沿う外周面に設けられ、前記スクリュ本体の回転時に前記原料を前記スクリュ本体の軸方向に搬送する螺旋状に捩れたフライトと、
前記スクリュ本体に設けられ、前記フライトにより搬送された前記原料が流入する第1の通路要素と、前記第1の通路要素から流入した前記原料が流れる第2の通路要素と、前記第2の通路要素を流れた前記原料が前記スクリュ本体の前記外周面に帰還する第3の通路要素と、を含む通路と、を具備し、
前記スクリュ本体は、前記軸線と同軸状に設けられた回転軸と、当該回転軸に追従して回転するように前記回転軸の外周面に同軸状に取り外し可能に挿入され、前記回転軸の軸方向に配列された複数の筒体と、を有し、
前記フライトの少なくとも一部が前記回転軸上で隣り合う前記筒体の外周面に形成され、前記通路が隣り合う前記筒体の間に跨るように前記筒体の内部に形成された押出機用スクリュ。 - 前記回転軸上で隣り合う前記筒体は、互いに密着された端面を有し、
前記通路の前記第2の通路要素は、隣り合う前記筒体のうちの一方の筒体の内部に形成された第1の部分と、隣り合う前記筒体のうちの他方の筒体の内部に形成された第2の部分と、を含み、前記第1の部分および前記第2の部分は、夫々が対応する前記筒体の軸方向に延びているとともに前記筒体の前記端面に開口された開口端を有し、当該開口端が互いに連通された請求項1に記載の押出機用スクリュ。 - 前記回転軸上で隣り合う前記筒体は、夫々前記端面の反対側に位置された端壁を有し、前記第1の部分の前記開口端とは反対側の端部が一方の前記筒体の前記端壁で閉塞され、前記第2の部分の前記開口端とは反対側の端部が他方の前記筒体の前記端壁で閉塞された請求項2に記載の押出機用スクリュ。
- 前記第2の通路要素の前記第1の部分は、前記一方の筒体の前記端面の側から前記一方の筒体に機械加工を施すことにより形成され、前記第2の通路要素の前記第2の部分は、前記他方の筒体の前記端面の側から前記他方の筒体に機械加工を施すことにより形成された請求項3に記載の押出機用スクリュ。
- 前記通路の前記第1の通路要素は、前記筒体の前記外周面に開口されているとともに前記筒体の内部で前記第2の通路要素に連通され、前記通路の前記第3の通路要素は、前記筒体の前記外周面に開口されているとともに前記筒体の内部で前記第2の通路要素に連通された請求項1に記載の押出機用スクリュ。
- 前記通路の前記第1の通路要素および前記第3の通路要素は、夫々前記筒体の前記外周面の側から前記筒体に機械加工を施すことにより形成された請求項5に記載の押出機用スクリュ。
- 前記スクリュ本体は、前記フライトによる原料の流動を制限することで原料の圧力を高める障壁部をさらに備え、前記第1の通路要素が前記障壁部と隣り合う位置に設けられた請求項1に記載の押出機用スクリュ。
- 前記回転軸は、ストッパ部を有する第1の軸部と、前記ストッパ部の端面から同軸状に延出され、前記筒体が挿入される第2の軸部と、を含み、前記第2の軸部の前記ストッパ部とは反対側の端面に締結具を介して端板が固定され、当該端板と前記ストッパ部との間で複数の前記筒体が前記第2の軸部の軸方向に締め付けられた請求項1ないし請求項7のいずれか一項に記載の押出機用スクリュ。
- 前記第2の通路要素の口径が前記第1の通路要素の口径よりも小さい請求項1ないし請求項8のいずれか一項に記載の押出機用スクリュ。
- 前記通路は、前記スクリュ本体の軸線を外れた位置に設けられ、前記筒体が前記回転軸に追従して回転した時に、前記通路が前記軸線の回りを公転するように構成された請求項1ないし請求項9のいずれか一項に記載の押出機用スクリュ。
- 原料を混練しつつ搬送する押出機用スクリュであって、
前記原料の搬送方向に沿う直線状の軸線を有し、当該軸線を中心に回転するスクリュ本体と、
前記スクリュ本体の周方向に沿う外周面に設けられ、前記スクリュ本体の回転時に前記原料を前記スクリュ本体の軸方向に搬送する螺旋状に捩れたフライトと、
前記スクリュ本体に設けられ、前記フライトにより搬送された前記原料が流入する入口と、前記入口から流入した前記原料が流れる通路本体と、前記通路本体を流れた前記原料が前記スクリュ本体の前記外周面に帰還する出口と、を含む通路と、を具備し、
前記スクリュ本体は、前記軸線と同軸状に設けられた回転軸と、当該回転軸に追従して回転するように前記回転軸の外周面に同軸状に取り外し可能に挿入され、前記回転軸の軸方向に配列された複数の筒体と、を有し、
前記フライトの少なくとも一部が少なくとも一つの前記筒体の外周面に形成され、前記通路が少なくとも一つの前記筒体の内部に形成された押出機用スクリュ。 - 前記通路の前記入口は、前記筒体の前記外周面に開口されているとともに前記筒体の内部で前記通路本体に連通され、前記通路の前記出口は、前記筒体の前記外周面に開口されているとともに前記筒体の内部で前記通路本体に連通された請求項11に押出機用スクリュ。
- 前記通路の前記入口および前記出口は、夫々前記筒体の外周面の側から前記筒体に機械加工を施すことにより形成された請求項12に記載の押出機用スクリュ。
- 前記通路は、前記スクリュ本体の軸線を外れた位置に設けられ、前記筒体が前記回転軸に追従して回転した時に、前記通路が前記軸線の回りを公転するように構成された請求項11ないし請求項13のいずれか一項に記載の押出機用スクリュ。
- 回転軸の外周面に同軸状に取り外し可能に挿入され、前記回転軸と一体に回転することで押出機用スクリュを構成するとともに、前記回転軸よりも全長が短い筒状のスクリュエレメントであって、
原料を搬送する螺旋状に捩れたフライトが設けられた外周面を有し、当該外周面のうち前記フライトから外れた箇所に、前記原料が流入する入口および前記原料が帰還する出口の少なくともいずれか一方が設けられ、内部に前記入口および前記出口の少なくともいずれか一方に連通するとともに前記原料が流通する通路が設けられたスクリュエレメント。 - 請求項1ないし請求項14のいずれか一項に記載されたスクリュを備え、当該スクリュを用いて原料を混練することで混練物を生成する押出機であって、
前記スクリュが回転可能に収容されたバレルと、
前記バレルに設けられ、前記スクリュに原料を供給する供給口と、
前記バレルに設けられ、前記混練物が押し出される吐出口と、
を備えた押出機。 - バレルの内部で回転する請求項1ないし請求項14のいずれか一項に記載されたスクリュに原料を供給するとともに、当該原料を前記スクリュを用いて前記スクリュの軸方向に連続的に搬送し、
前記スクリュの回転時に、原料を前記スクリュの前記通路に導くとともに、前記通路を通して前記スクリュの外周面に帰還させるようにした押出方法。
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JP2014218705A JP6446234B2 (ja) | 2014-10-27 | 2014-10-27 | 押出機用スクリュ、スクリュエレメント、押出機および押出方法 |
CN201580058297.XA CN107107442B (zh) | 2014-10-27 | 2015-10-23 | 压出机用螺杆、螺杆元件、压出机及压出方法 |
PCT/JP2015/080021 WO2016068048A1 (ja) | 2014-10-27 | 2015-10-23 | 押出機用スクリュ、スクリュエレメント、押出機および押出方法 |
KR1020177014523A KR101999038B1 (ko) | 2014-10-27 | 2015-10-23 | 압출기용 스크루, 스크루 엘리먼트, 압출기 및 압출 방법 |
DE112015004855.3T DE112015004855B4 (de) | 2014-10-27 | 2015-10-23 | Schnecke für einen Extruder, Extruder und Extrudierverfahren |
TW104135236A TWI588007B (zh) | 2014-10-27 | 2015-10-27 | 擠壓機用螺桿、螺桿元件、擠壓機及擠壓方法 |
US15/497,758 US11072104B2 (en) | 2014-10-27 | 2017-04-26 | Screw for extruder comprising a passage crossing over between adjacent cylindrical bodies |
US17/355,997 US11820062B2 (en) | 2014-10-27 | 2021-06-23 | Extrusion methods wherein material is guided through a passage crossing over between adjacent cylindrical bodies |
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US11820062B2 (en) | 2023-11-21 |
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