JP6446310B2 - 押出機用スクリュ、押出機および押出方法 - Google Patents
押出機用スクリュ、押出機および押出方法 Download PDFInfo
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- JP6446310B2 JP6446310B2 JP2015066280A JP2015066280A JP6446310B2 JP 6446310 B2 JP6446310 B2 JP 6446310B2 JP 2015066280 A JP2015066280 A JP 2015066280A JP 2015066280 A JP2015066280 A JP 2015066280A JP 6446310 B2 JP6446310 B2 JP 6446310B2
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- screw
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- peripheral surface
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- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
- B29C48/83—Heating or cooling the cylinders
- B29C48/834—Cooling
-
- 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
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
- B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
-
- 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
- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Description
さらに、前記スクリュ本体の内部に、前記障壁部により圧力が高められた前記原料が流入するとともに、流入した前記原料が前記スクリュ本体の外周面に向けて流通する通路が設けられている。
前記スクリュ本体は、前記通路を構成する穴の形状を規定する壁面を有する。当該壁面は、前記スクリュ本体の前記軸線の回りを公転するように当該軸線に対し偏心した位置に設けられている。
以下、第1の実施形態について、図1ないし図12を参照して説明する。
図13および図14は、第1の実施形態と関連性を有する変形例を開示している。
図15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21の回転軸38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16ないし図22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21のスクリュ本体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23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。変形例は、スクリュ本体37の障壁部82の構成が第3の実施形態と相違している。図23に示すように、障壁部82は、スクリュ本体37の軸方向に延びる円筒形の大径部95で構成されている。大径部95は、スクリュ本体37の周方向に連続する外周面95aを有するとともに、スクリュ本体37の軸方向に沿う長さがスクリュ本体37の軸方向に沿う障壁部82の長さと同等に設定されている。大径部95の外周面95aは、凹みや切欠きが存在しない滑らかな面とすることが好ましい。
図24ないし図31は、第4の実施形態を開示している。第4の実施形態は、スクリュ21のスクリュ本体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4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32は、第4の実施形態と関連性を有する変形例1を開示している。
図33は、第4の実施形態と関連性を有する変形例2を示している。
図34ないし図36は、第4の実施形態の変形例1と関連性を有する変形例3を示している。
図37は、第4の実施形態の変形例1と関連性を有する変形例4を示している。
図38は、第4の実施形態と関連性を有する変形例5を示している。
図39は、変形例5をさらに発展させた変形例6を示している。
図40は、第5の実施形態を開示している。第5の実施形態は、原料に伸長作用を付加するための構成が第1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、第1の実施形態と同様である。
図41は、第6の実施形態を開示している。第6の実施形態は、原料に伸長作用を付加するための構成が第5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、第5の実施形態と同様である。
図42は、第7の実施形態を開示している。第7の実施形態は、原料に伸長作用を付加するための構成が第1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、第1の実施形態と同様である。
図43は、第8の実施形態を開示している。第8の実施形態は、スクリュ21の構成および原料に伸長作用を付加するための構成が第1の実施形態と相違している。
Claims (9)
- バレルの内部で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フライトを有する搬送部と、
前記スクリュ本体の周方向に沿う外周面に設けられ、前記フライトにより搬送される前記原料の流動を堰き止めることで当該原料の圧力を高める障壁部と、
前記スクリュ本体の内部に設けられ、前記障壁部により圧力が高められた前記原料が流入するとともに、流入した前記原料が前記スクリュ本体の外周面に向けて流通する通路と、を含み、
前記スクリュ本体は、前記通路を構成する穴の形状を規定する壁面を有し、当該壁面は、前記スクリュ本体の前記軸線の回りを公転するように当該軸線に対し偏心した位置に設けられた押出機用スクリュ。 - 前記通路は、前記スクリュ本体の前記外周面に開口された入口および出口を有し、前記入口および前記出口は、前記スクリュ本体の軸方向に互いに離れているとともに、前記入口から前記通路に流入した前記原料が前記出口から前記スクリュ本体の前記外周面に帰還する請求項1に記載の押出機用スクリュ。
- 前記通路の前記入口が前記障壁部の直前に位置された請求項2に記載の押出機用スクリュ。
- 前記通路は、前記入口および前記出口に連通された通路本体を有し、前記通路本体の径が前記入口の径よりも小さい請求項2又は請求項3に記載の押出機用スクリュ。
- 原料を混練して連続的に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、当該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フライトを有する搬送部と、
前記スクリュ本体の内部に設けられ、前記フライトにより搬送された前記原料が流入するとともに、流入し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ように流通する複数の通路と、を含み、
前記通路は、前記スクリュ本体の前記軸線から偏心した位置で前記スクリュ本体の軸方向に互いに間隔を存して配列された押出機用スクリュ。 - 前記通路が前記スクリュ本体の周方向に互いに間隔を存して配列された請求項5に記載の押出機用スクリュ。
- 前記スクリュ本体を冷却する冷媒が流れる冷媒流路をさらに備えた請求項1ないし請求項6のいずれか一項に記載の押出機用スクリュ。
- 請求項1ないし請求項7のいずれか一項に記載されたスクリュを備え、当該スクリュで原料を混練することにより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、前記スクリュに前記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スクリュの外周面に原料を供給し、
当該原料を前記スクリュの外周面に形成されたフライトを用いて前記スクリュの軸方向に連続的に搬送するとともに、前記スクリュの外周面に設けた障壁部で前記原料の流動を堰き止めることにより前記原料の圧力を高め、
前記スクリュの回転時に、前記スクリュの内部で前記スクリュに追従して公転する通路に、前記障壁部で圧力が高められた前記原料を前記スクリュの外周面から導入するとともに、前記通路に導入された前記原料を前記通路を通じて前記スクリュの前記外周面に帰還させるようにした押出方法。
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CN105960319A (zh) | 2016-09-21 |
CN105960319B (zh) | 2018-07-10 |
WO2015156230A1 (ja) | 2015-10-15 |
US11400633B2 (en) | 2022-08-02 |
DE112015001737T5 (de) | 2017-02-09 |
TWI594862B (zh) | 2017-08-11 |
KR101907763B1 (ko) | 2018-10-12 |
JP2015205506A (ja) | 2015-11-19 |
KR20160105505A (ko) | 2016-09-06 |
TW201607720A (zh) | 2016-03-01 |
US20170021547A1 (en) | 2017-01-26 |
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