JP2006248231A - レーザ焼結用粉末回収システム - Google Patents
レーザ焼結用粉末回収システム Download PDFInfo
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Abstract
【解決手段】三次元物体を製造するために層毎の構築プロセスが中で行われる装置内のチャンバであって、第1の側と反対の第2の側を有するチャンバと、ある量の粉末をチャンバ中に堆積させるためのチャンバの第1の側に配置された粉末供給ホッパーであって、粉末供給ラインから粉末が供給される粉末供給ホッパーと、ある量の粉末をチャンバ内に広げるための、供給ホッパーに隣接して配置されたスプレッダーと、スプレッダーにより供給される溢れた粉末を受け入れるための受入手段であって、チャンバの少なくとも一方の側に隣接して配置された受入手段と、溢れた粉末を粉末供給ホッパーに戻すための、受入手段に流動連絡した空気圧搬送装置とを備える。
【選択図】図5
Description
102,152 プロセス・チャンバ
104,154 レーザビーム
108 レーザ
110,186 標的区域
116,156 レーザ窓
125,127 供給ピストン
130,180 逆回転ローラ
132 部品床
136,138,208,210,256 オーバーフロー容器(カートリッジ)
170 支持台
190,258 部品入りケーキ
202,376 レーザ焼結装置
206,260,353,400 ブレークアウト・ステーション
207,212,216,228 移送ライン
218,222 ブレンド・タンク
226 制御装置
254 供給ホッパー
262 完成部品
264 使用済み粉末
266 回収粉末
268 バージン(新しい)粉末
270,350 粉末処理装置
354 回収粉末貯蔵容器
356 L形弁
358,370,514,516,542,600,650 濃密相トランスポータ
364 バージン粉末貯蔵容器
404,458 エアスライド
406 スクリュー・フィーダ
464,534 レベル・センサ
554,704 多孔質板
Claims (24)
- 粉末から三次元物品を製造するための装置において、
(a) 三次元物体を製造するために層毎の構築プロセスが中で行われる前記装置内のチャンバであって、第1の側と反対の第2の側を有するチャンバ、
(b) ある量の粉末を前記チャンバ中に堆積させるための該チャンバの第1の側に配置された粉末供給ホッパーであって、粉末供給ラインから粉末が供給される粉末供給ホッパー、
(c) 前記ある量の粉末を前記チャンバ内に広げるための、前記供給ホッパーに隣接して配置されたスプレッダー、
(d) 前記スプレッダーにより供給される溢れた粉末を受け入れるための受入手段であって、前記チャンバの少なくとも一方の側に隣接して配置された受入手段、および
(e) 前記溢れた粉末を前記粉末供給ホッパーに戻すための、前記受入手段に流動連絡した空気圧搬送装置、
を備えた装置。 - 前記装置からの完成した生産品を受け取り、該生産品を完成した部品、回収可能な粉末、および使用済み粉末に分離する別個のブレークアウト・ステーションをさらに備えることを特徴とする請求項1記載の装置。
- 前記供給ラインに連結された粉末処理装置をさらに備えることを特徴とする請求項1記載の装置。
- 前記粉末処理装置から前記供給ラインを通して供給される粉末が、空気圧濃密相搬送装置により空気圧濃密相搬送によって搬送されることを特徴とする請求項3記載の装置。
- 前記粉末供給ホッパーが、前記チャンバの第1の側の上に配置されていることを特徴とする請求項1記載の装置。
- 前記粉末処理装置に多量のバージン粉末および回収粉末の両方が供給されることを特徴とする請求項3記載の装置。
- 前記粉末処理装置が、多量のバージン粉末を貯蔵しかつブレンドするバージン粉末貯蔵容器を備え、ブレンド操作が、該バージン粉末貯蔵容器に粉末を循環させることによって行われることを特徴とする請求項3記載の装置。
- 前記バージン粉末貯蔵容器を循環する前記粉末が、空気圧濃密相搬送装置によって搬送されることを特徴とする請求項7記載の装置。
- 前記スプレッダーが前記供給ホッパーの下に位置していることを特徴とする請求項5記載の装置。
- 前記バージン粉末貯蔵容器が、円錐状ブレンド装置内に内部円錐体をさらに備えてなることを特徴とする請求項7記載の装置。
- 前記粉末処理装置が、多量の回収粉末を貯蔵しかつブレンドする回収粉末貯蔵容器をさらに備え、ブレンド操作が、該回収粉末貯蔵容器に粉末を循環させることによって行われることを特徴とする請求項7記載の装置。
- 前記回収粉末貯蔵容器を循環する前記粉末が、空気圧濃密相搬送装置によって搬送されることを特徴とする請求項11記載の装置。
- 前記回収粉末貯蔵容器が、円錐状ブレンド装置内に内部円錐体をさらに備えてなることを特徴とする請求項11記載の装置。
- 前記粉末処理装置が、回収粉末およびバージン粉末の組合せをブレンドしかつ貯蔵するためのブレンダ貯蔵容器をさらに備え、ブレンド操作が該ブレンダ貯蔵容器に粉末を循環させることによって行われることを特徴とする請求項11記載の装置。
- 前記ブレンダ貯蔵容器を循環する前記粉末が、空気圧濃密相搬送装置によって搬送されることを特徴とする請求項14記載の装置。
- 前記ブレンダ貯蔵容器が、円錐状ブレンド装置内に内部円錐体をさらに備えてなることを特徴とする請求項14記載の装置。
- 前記空気圧搬送装置が、空気圧濃密相搬送装置によって、溢れた粉末を搬送する空気圧濃密相搬送装置であることを特徴とする請求項1記載の装置。
- 前記溢れた粉末を前記粉末供給ホッパーに戻すための空気圧濃密相搬送装置をさらに備えることを特徴とする請求項17記載の装置。
- 前記ブレークアウト・ステーションが、
(a) 完成した三次元物体から回収可能な粉末および使用済み粉末を分離するための作業台、
(b) 回収可能な粉末および使用済み粉末を処理し分離するための装置、および
(c) 回収した粉末を前記粉末処理装置に搬送するための空気圧濃密相搬送装置、
を備えたことを特徴とする請求項3記載の装置。 - 前記空気圧濃密相搬送装置が、
(a) 移送すべき粉末を受け入れるための頂部受入部分、
(b) 前記粉末を出口に両道される、前記頂部受入部分の下に配置された底部移送部分、
(c) 前記底部移送部分にある多孔質板、および
(d) 前記多孔質板を通過する搬送気体の入口、
を備えることを特徴とする請求項4,8,12,15,18および19いずれか1項記載の装置。 - 前記粉末供給ホッパーが、
(a) ホッパー・チャンバの上で粉末供給物を受け入れるための入口、
(b) 前記ホッパー・チャンバの下に配置された円筒状回転ローラ、および
(c) 前記円筒状回転ローラが回転するときに前記ホッパー・チャンバからの粉末が通って流動する間隙を形成するように、該円筒状回転ローラに隣接して平行に配置されたローラ・フィーダ、
を備えたことを特徴とする請求項1記載の装置。 - 前記円筒状回転ローラが滑らかな表面を有することを特徴とする請求項21記載の装置。
- 前記入口から粉末を受け入れかつ該粉末を前記ホッパー・チャンバ中に供給するための前記入口の下に配置されたエアスライドをさらに備えたことを特徴とする請求項22記載の装置。
- 収集された粉末凝集塊を通過させるために、前記ローラ・フィーダを周期的に移動させて前記間隙のサイズを増加させるための調節装置をさらに備えることを特徴とする請求項23記載の装置。
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US11/077,304 | 2005-03-09 |
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EP1700686A3 (en) | 2006-10-18 |
US7887316B2 (en) | 2011-02-15 |
JP4745867B2 (ja) | 2011-08-10 |
US20060214335A1 (en) | 2006-09-28 |
EP1700686B1 (en) | 2015-07-08 |
EP1700686A2 (en) | 2006-09-13 |
US20090169664A1 (en) | 2009-07-02 |
DE102006010928A1 (de) | 2006-11-30 |
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