THREE-DIMENSIONAL MOLDING DEVICE AND THREE-DIMENSIONAL MOLDING METHOD

• Main Authors: HISHITANI DAISUKE, MIZUNO HIROBUMI
• Format: Patent
• Language: English; Japanese
• Published: 09.05.2024
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To allow a large-sized molded object to be manufactured while reducing the manufacturing cost of a three-dimensional molding device.SOLUTION: A three-dimensional molding device 1 is equipped with a layer forming mechanism 12 that forms a material layer in a molding space 30, an optical head 11 that irradiates the material layer with light, and a head moving mechanism 13 that moves the optical head 11 in a head moving direction parallel to the material layer. The optical head 11 consists of a light source, a diffraction-type optical modulator with a plurality of linearly arrayed modulation elements, an illumination optical system that guides light from the light source to the optical modulator, and a projection optical system that forms a projected image of the optical modulator on the material layer and changes the direction of the mirror so as to move the projected image in a scanning direction (+X) intersecting with the direction corresponding to the array direction of the plurality of modulation elements and intersecting with a head movement direction (+Y). This allows a large-sized molded object to be manufactured while reducing the manufacturing cost of the three-dimensional molding device 1.SELECTED DRAWING: Figure 1 【課題】３次元造形装置の製造コストを抑えつつ、大型の造形物を作製可能とする。【解決手段】３次元造形装置１は、造形空間３０に材料層を形成する層形成機構１２と、材料層に光を照射する光学ヘッド１１と、光学ヘッド１１を材料層に平行なヘッド移動方向に移動するヘッド移動機構１３とを備える。光学ヘッド１１は、光源と、直線状に配列された複数の変調要素を有する回折型の光変調器と、光源からの光を光変調器に導く照明光学系と、光変調器の投影像を材料層上に形成し、ミラーの向きを変更することにより投影像を、複数の変調要素の配列方向に対応する方向に対して交差し、かつ、ヘッド移動方向（＋Ｙ）に対して交差する走査方向（＋Ｘ）に移動する投影光学系とを備える。これにより、３次元造形装置１の製造コストを抑えつつ、大型の造形物を作製することができる。【選択図】図１