Method and device for layer-wise production of patterns
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-067/08
B29C-067/00
B22F-003/00
B33Y-010/00
B33Y-030/00
B33Y-040/00
B33Y-070/00
B29C-064/141
B29C-064/153
B29C-064/165
B29C-064/35
B05C-019/06
B22F-003/105
B29K-105/00
출원번호
US-0295122
(2016-10-17)
등록번호
US-10099426
(2018-10-16)
우선권정보
DE-10 2007 050 679 (2007-10-21)
발명자
/ 주소
Ederer, Ingo
Hartmann, Andreas
출원인 / 주소
VOXELJET AG
대리인 / 주소
The Dobrusin Law Firm, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
129
초록
The present invention relates to apparatus, devices and methods for conveying particulate material during the manufacture of patterns in layers, wherein powder is conveyed out of a reservoir into a spreader unit having an ejection system.
대표청구항▼
1. An apparatus for the manufacture of a three-dimensional object in layers comprising i) a device for conveying a particulate material during the manufacture of the object in layers, wherein the devise comprises a) a reservoir,b) a spreader unit,c) a particulate material conveying component, andd)
1. An apparatus for the manufacture of a three-dimensional object in layers comprising i) a device for conveying a particulate material during the manufacture of the object in layers, wherein the devise comprises a) a reservoir,b) a spreader unit,c) a particulate material conveying component, andd) a build platform on which the object is built;whereinthe particulate material conveying component conveys the particulate material from the reservoir to the spreader unit;the spreader unit is adapted for spreading the particulate material onto the build platform as a layer of the particulate material, andthe device includes an ejection system for filling the spreader unit with the particulate material, the ejection system including a first component having a pattern of openings and a second component having the same pattern of openings, wherein the first component moves relative to the second component for shifting the patterns of openings between an aligned configuration and a sealed configuration. 2. An apparatus for the manufacture of a three-dimensional object in layers comprising: i) a device for conveying a particulate material during the manufacture of the object in layers, wherein the devise comprises a) a reservoir,b) a spreader unit,c) a particulate material conveying component, andd) a build platform on which the object is built;whereinthe particulate material conveying component conveys the particulate material from the reservoir to the spreader unit;the spreader unit is adapted for spreading the particulate material onto the build platform andthe device includes an ejection system for filling the spreader unit with the particulate material, the ejection system including a first component having a pattern of openings and a second component having the same pattern of openings, wherein the first component moves relative to the second component for shifting the patterns of openings between an aligned configuration and a sealed configuration;wherein the first component and the second component are tubes having spaced apart openings along a bottom length of the tubes. 3. The apparatus of claim 1, wherein the particulate material conveying component includes a screw conveyor. 4. The apparatus of claim 3, wherein the screw conveyor runs horizontally above the spreader unit. 5. The apparatus of claim 4, wherein the screw conveyor extends the length of the spreader unit. 6. The apparatus of claim 1, wherein the reservoir is arranged below the spreader unit in a vertical direction, at least during a filling process. 7. The apparatus of claim 1, wherein the apparatus includes a recirculation system for reintroducing particulate material back into the spreader after being ejected from the ejection system. 8. The apparatus according to claim 7, wherein provision is furthermore made for a junction for introducing new particulate material into the reservoir. 9. A method of constructing a three-dimensional article in layers with a device for conveying a particulate material during the manufacture of the article in layers, wherein the devise includes a reservoir, a spreader unit, a particulate material conveying component, and a build platform on which the object is built; the method comprising the following steps:conveying a particulate material from the reservoir to the spreader unit with the particulate material conveying component;filling the spreader unit with the particulate material using an ejection system; andspreading the particulate material onto the build platform as a layer of the particulate material with the spreader unit;wherein the ejection system includes a first component having a pattern of openings and a second component having the same pattern of openings, wherein the first component moves relative to the second component for shifting the patterns of openings between an aligned configuration and a sealed configuration. 10. The method of claim 9, wherein the particulate material conveying component includes a screw conveyor and the method includes moving the first and/or the second component of the ejection system for sealing a bottom of the ejection system; and rotating the screw conveyor for filling the spreader while the bottom of the ejection system is sealed. 11. The method of claim 9, wherein the method includes opening a bottom of the ejection system only after the particulate material is distributed throughout an entire length of the spreader. 12. The method of claim 9, wherein the first component and the second component are tubes having spaced apart openings along a bottom length of the tubes, and the method includes rotating one of the tubes for aligning the openings. 13. The apparatus of claim 1, wherein the pattern of openings includes a plurality of openings. 14. The apparatus of claim 13, wherein gravity forces the particulate material through the plurality of openings. 15. The apparatus of claim 2, wherein the particulate material conveying component includes a screw conveyor. 16. The apparatus of claim 15, wherein the screw conveyor runs horizontally above the spreader unit and extends the length of the spreader unit. 17. The apparatus of claim 16, wherein the reservoir is arranged below the spreader unit in a vertical direction, at least during a filling process. 18. The apparatus of claim 17, wherein the apparatus includes a recirculation system for reintroducing particulate material back into the spreader after being ejected from the ejection system, wherein provision is furthermore made for a junction for introducing new particulate material into the reservoir. 19. The apparatus of claim 6, wherein the reservoir is arranged below the spreader unit in a vertical direction, at least during a filling process; andthe apparatus includes a recirculation system for reintroducing particulate material back into the spreader after being ejected from the ejection system, wherein provision is furthermore made for a junction for introducing new particulate material into the reservoir.
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이 특허에 인용된 특허 (129)
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