JP2020524095A - 粉末層3次元プリンタ向け改良型微粉末分配システムおよび集塵システムならびに関連する方法 - Google Patents
粉末層3次元プリンタ向け改良型微粉末分配システムおよび集塵システムならびに関連する方法 Download PDFInfo
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Abstract
Description
改良型リコータ
集塵システム
Claims (20)
- 第1の片面および第2の片面を有し、さらに複数の貫通孔(126)を有するシートスクリーン(28)と、当該シートスクリーン(28)を振動させるように適合された超音波振動子(30)と、当該シートスクリーン(28)の当該第1の片面に造形粉末を提供するように適合されたホッパー(26)とを具備するリコーター(20)を含む粉末層3次元プリンタ(2)であって、当該超音波振動子(30)が当該シートスクリーン(28)を振動させる際に、当該ホッパー(26)からの当該造形粉末が当該貫通孔(126)を介して当該シートスクリーンの当該第2の片面から分配されることを特徴とする粉末層3次元プリンタ(2)。
- 前記超音波振動子(30)が前記シートスクリーン(28)を振動させる際に、前記ホッパー(26)からの前記造形粉末は造形粉末ペレット(112)として前記貫通孔(126)を介して前記シートスクリーンの前記第2の片面から分配される、請求項1の粉末層3次元プリンタ(2)。
- 前記ホッパー(26)は前記シートスクリーンの前記第1の片面へ前記造形粉末の質量流を与えるように適合されている、請求項1の粉末層3次元プリンタ(2)。
- 前記ホッパー(26)は前記シートスクリーン(28)に近接する下部(60)および上部(58)から成り、当該下部(60)と当該上部(58)は相互に連結して連続的な貯蔵器を構成する、請求項1の粉末層3次元プリンタ(2)。
- さらにシートスクリーンホルダー(78、110)を具備し、当該シートスクリーンホルダー(78、110)は第1の片面、第2の片面、および当該第1の片面と当該第2の片面を貫通する開口を有し、前記シートスクリーン(28)の前記貫通孔(126)の少なくとも一部が当該開口と流体連通するように前記シートスクリーン(28)が当該シートスクリーンホルダー(78、110)に取り付けられていることを特徴とする、請求項1の粉末層3次元プリンタ(5)。
- 前記シートスクリーン(28)は接着剤によって前記シートスクリーンホルダー(78、110)に接合されている、請求項5の粉末層3次元プリンタ(2)。
- 前記シートスクリーンの前記第2の片面は水平に対して20度乃至70度の範囲の角度を成すように配置されている、請求項1の粉末層3次元プリンタ(2)。
- 前記超音波振動子(30)は、水平成分および垂直成分を有する振動を前記シートスクリーン(28)に与えることができるように水平と或る角度を成して配置されている、請求項1の粉末層3次元プリンタ(2)。
- 前記超音波振動子(30)はその作動時に或る振動数範囲を掃引するように適合されている、請求項1の粉末層3次元プリンタ(2)。
- 前記シートスクリーン(28)の前記貫通孔(126)のサイズ、形状および分布のうちの少なくとも1つを変化させることにより、かかる変化がなかった場合に振動の局所的ばらつきのために造形粉末が不均一に分配される前記リコータ(20)の癖を減らすことを特徴とする、請求項1の粉末層3次元プリンタ(2)。
- 前記貫通孔(126)のうちの少なくとも1つの孔が少なくとも1つの歯(154)を含む形状である、請求項1の粉末層3次元プリンタ(2)。
- 前記ホッパー(26)に振動を与えるように適合された低周波振動装置(32)をさらに具備する、請求項1の粉末層3次元プリンタ(2)。
- 前記超音波振動子(30)および前記低周波振動装置(32)と作動的に通信し、前記超音波振動子(30)および前記低周波振動装置(32)を同時におよび/または非同時に作動させるように適合された振動制御器(262)をさらに具備する、請求項12の粉末層3次元プリンタ(2)。
- 前記リコータ(20)を運ぶように適合されたトロリー(22)をさらに具備する、請求項1の粉末層3次元プリンタ(2)。
- 前記リコータ(20)は平滑化装置(34)、乾燥装置(36)および硬化装置のうちの少なくとも1つをさらに具備する、請求項1の粉末層3次元プリンタ(2)。
- 気体雰囲気の空間を密閉するハウジング(164)と、当該空間を上部セクションと下部セクションとに分ける水平に配置されたデッキ(170)と、当該デッキ(170)の近傍に配置され、当該空間の当該上部セクションの少なくとも一部を占める造形ボックス(172)と、当該造形ボックス(172)を取り囲むように配置され、当該空間の当該上部セクションと当該下部セクションとを流体連通させる、当該デッキ(170)を貫通する複数の流路(176)と、当該空間の当該下部セクションに配置された、当該流路(176)と流体連通関係にあるプレナム(178)と、当該プレナム(178)と流体連通関係にある排気ダクト(180)と、どちらもが当該排気ダクト(180)と流体連通関係にある制御可能な真空源(192)およびフィルタ(188)を含む当該ハウジング(164)の外部に配置された集塵器(186)とをさらに具備する請求項1の粉末層3次元プリンタ(2)であって、当該真空源(192)の作動時に当該空間の当該上部セクションの当該気体雰囲気の少なくとも一部の気体が当該流路(176)および当該フィルタ(188)を介して引き出されることを特徴とする、請求項1の粉末層3次元プリンタ(2)。
- 前記造形ボックス(172)を取り囲むシュラウド(208)をさらに具備し、前記造形ボックス(172)と当該シュラウド(208)の間に、前記空間の前記上部セクションと前記流路(176)とを流体連通させる環状部(212)が形成されていることを特徴とする、請求項16の粉末層3次元プリンタ(2)。
- 前記ハウジング(164)は、前記空間の前記上部セクションの気体雰囲気と前記ハウジング(164)外部の雰囲気とを流体連通させる少なくとも1つの通気口(206A)を有することを特徴とする、請求項16の粉末層3次元プリンタ(2)。
- 超音波振動を与えられたシートスクリーン(28)から造形粉末を分配するステップを含む、物品を3次元印刷する方法。
- 造形粉末を分配する際に造形粉末をペレット化するステップを含む、請求項19の方法。
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