JP6977080B2 - 3次元物体プリンタにおけるマルチノズル押出印刷ヘッドを動作させるシステムおよび方法 - Google Patents
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Description
Claims (15)
- 3次元物体プリンタにおいて、
支持部材と、
印刷ヘッドであって、
内部において、チャンバが溶融押出材料を格納するように構成され、複数の通路のそれぞれが第1端部において前記チャンバと流体接続されるハウジングであって、溶融押出材料が、前記ハウジング内の前記チャンバから前記通路に流入し、前記通路の第2端部において外部に流出するハウジングと、
複数の通路を有する弁アセンブリであって、前記弁アセンブリ内の前記複数の通路のそれぞれが、第1端部において、前記ハウジング内の前記複数の通路のうちの1つの通路の前記第2端部に一対一で対応して流体接続されて、前記ハウジング内の前記通路の前記第2端部から流出した溶融押出材料が、前記弁アセンブリ内の対応する通路の前記第1端部に流入し、前記弁アセンブリ内の各通路が弁部材を含み、前記弁部材が、前記通路内で双方向に移動して、前記弁部材が設けられた通路を、選択的に、且つ前記弁アセンブリ内の他の通路から独立して開閉するように構成される、弁アセンブリと、
複数のノズルを有する平面部材であって、前記複数のノズルのうちの各ノズルが、前記平面部材のうちの前記弁アセンブリに当接する1つの平坦面から前記平面部材の反対側の平坦面と面一である端部まで延在する通路を有し、前記複数のノズルは、前記弁アセンブリ内の前記複数の通路の前記第2端部と一対一で対応して流体接続され、前記弁アセンブリの前記通路内の前記弁部材が移動して選択的且つ個別に開閉することで、溶融押出材料が前記平面部材の前記複数のノズルに流入する、平面部材と、
を有する印刷ヘッドと、
前記印刷ヘッドと前記支持部材との相対移動を引き起こすように構成された少なくとも1つのアクチュエータと、を含む、3次元物体プリンタ。 - 前記印刷ヘッドの前記ハウジングが、さらに、
前記チャンバ内の押出物を溶融して溶融押出材料を形成するように構成されたヒータを含む、請求項1に記載の3次元物体プリンタ。 - 前記弁部材の双方向移動は、前記弁アセンブリの前記通路内の溶融押出材料の流れを横断する移動である、請求項2に記載の3次元物体プリンタ。
- 前記平面部材が、さらに、低表面エネルギ材料の被覆を含む、請求項3に記載の3次元物体プリンタ。
- 印刷対象である3次元物体の複数の層に対応する画像データを記憶するように構成されたメモリと、
前記印刷ヘッドの前記弁アセンブリ、前記少なくとも1つのアクチュエータ、及び前記メモリに動作接続されたコントローラと、をさらに含み、
前記コントローラが、
前記メモリ内の前記画像データを利用して前記少なくとも1つのアクチュエータを動作させて、前記印刷ヘッドと前記支持部材の相対移動を第1経路に沿って発生させ、
前記印刷ヘッドの前記弁アセンブリ内の少なくとも1つの弁部材を動作させ、前記アセンブリ内の、前記少なくとも1つの弁部材が配置された少なくとも1つの通路内で前記少なくとも1つの弁部材を移動して前記通路を開き、前記第1経路に沿った前記印刷ヘッドと前記支持部材の相対移動が生じて第1スワスを形成する際に、前記弁アセンブリ内の前記少なくとも1つの通路から前記平面部材の中の対応するノズル内に溶融押出材料を流し込み、
前記少なくとも1つのアクチュエータを動作させて、前記印刷ヘッドと前記支持部材との相対移動を、前記第1経路とは異なる第2経路に沿って発生させ、
前記弁アセンブリ内の、前記少なくとも1つの弁部材とは異なる別の弁部材を動作させ、前記別の弁部材が配置された通路内で前記別の弁部材を移動して、前記別の弁部材が配置された前記通路を開き、前記第2経路に沿った前記印刷ヘッドと前記支持部材の相対移動が生じて第2スワスを形成する際に、前記別の通路から流れ出た溶融押出材料を、前記平面部材内の、前記別の通路に対応するノズルに流し込むように構成される、請求項4に記載の3次元物体プリンタ。 - 前記コントローラが、さらに、
前記複数のノズルのうち、第1スワスによって形成された周囲の中に存在しない少なくとも1つのノズルを特定し、
前記弁アセンブリ内の、特定された前記少なくとも1つのノズルに対応する弁部材を動作させ、特定された前記少なくとも1つのノズルに流体接続された通路を閉じて、特定された前記少なくとも1つのノズルからの溶融押出材料の流れを止めるように構成される、請求項5に記載の3次元物体プリンタ。 - 前記コントローラが、さらに、
前記少なくとも1つのアクチュエータを動作させて、前記印刷ヘッドと前記支持部材の相対移動を、前記第1スワスによって形成された前記周囲の中に存在する追加の経路に沿って発生させ、
前記追加の経路に沿った前記印刷ヘッドと前記支持部材の相対移動が生じる際に、前記第1スワスによって形成された前記周囲の中に溶融押出材料を押し出す1つ以上のノズルを特定し、
前記弁アセンブリ内のいくつかの弁部材を動作させ、特定された前記1つ以上のノズルに流体接続された通路内の弁部材を移動して、特定された前記1つ以上のノズルに流体接続された前記通路を開き、前記追加の経路に沿った相対移動が生じる際に、特定された前記1つ以上のノズルに溶融押出材料を流し込み、特定された前記1つ以上のノズルから押し出された溶融押出材料で、前記第1スワスによって形成された前記周囲の中に複数のスワスを形成するように構成される、請求項6に記載の3次元物体プリンタ。 - 前記第1経路は直線経路である、請求項7に記載の3次元物体プリンタ。
- 前記第1経路は湾曲経路である、請求項7に記載の3次元物体プリンタ。
- 前記支持部材に垂直に前記印刷ヘッドと前記支持部材との間に延びる軸を中心として前記印刷ヘッドを回転するように構成された第2のアクチュエータをさらに備え、
前記コントローラが、さらに、
前記印刷ヘッドと前記支持部材の相対移動に対応する、前記第1スワスによって形成された前記周囲の中の湾曲経路を特定し、
前記少なくとも1つのアクチュエータを動作させ、前記印刷ヘッドと前記支持部材の相対移動を、前記第1スワスによって形成された前記周囲の中の特定された前記湾曲経路に沿って発生させ、
弁部材を動作させ、溶融押出材料が前記第1スワスによって形成された前記周囲の中に存在するノズルに流体接続された通路から流れ出て、前記第1スワスによって形成された前記周囲の中に存在する前記ノズルによって押し出されるように、前記第1スワスによって形成された前記周囲の中に存在する前記ノズルに流体接続された前記通路に配置された弁部材を移動し、
前記第2のアクチュエータを動作させ、溶融押出材料が、前記第1スワスによって形成された前記周囲の中に存在する前記ノズルから押し出されて、振動パターンを伴うスワスを形成する際に、特定された前記湾曲経路に沿った相対移動中、前記軸を中心に前記印刷ヘッドを振動させるように構成される、請求項9に記載の3次元物体プリンタ。 - 前記コントローラが、さらに、
前記振動パターンの周波数及び大きさを特定し、
特定された前記周波数及び大きさを用いて前記第2のアクチュエータを動作させるように構成される、請求項10に記載の3次元物体プリンタ。 - 前記コントローラが、さらに、
前記第1スワスの長さを利用して前記振動パターンの周波数および大きさを特定するように構成される、請求項11に記載の3次元物体プリンタ。 - 前記コントローラが、さらに、
正弦波形の振動パターンについて、前記第1スワスの長さを利用して前記振動パターンの周波数および大きさを特定するように構成される、請求項12に記載の3次元物体プリンタ。 - 前記平面部材の第1の複数のノズルは、前記平面部材の反対側の表面と面一のノズル端部において第1の直径を有し、前記平面部材内の第2の複数のノズルは、前記平面部材の反対側の表面と面一のノズル端部において第2の直径を有する、請求項13に記載の3次元物体プリンタ。
- 前記印刷ヘッドと前記支持部材との間の前記軸に沿って前記印刷ヘッドを移動するように構成された第3のアクチュエータをさらに含み、
前記コントローラが、さらに、
少なくとも1つの追加のアクチュエータを動作させ、前記印刷ヘッドと前記支持部材の相対移動が生じて、前記平面部材の中の複数の異なるノズルからの溶融押出材料を共にマージする際に、前記平面部材が前記平面部材内のノズルから押し出された溶融押出材料と係合するように、前記印刷ヘッドの前記平面部材を前記支持部材から所定の距離に配置するように構成される、請求項14に記載の3次元物体プリンタ。
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US10335991B2 (en) | 2019-07-02 |
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