发明名称 |
EXTRUSION NOZZLES, METHODS, AND SYSTEMS FOR THREE-DIMENSIONAL PRINTING |
摘要 |
Technologies are generally described for an extrusion nozzle of a 3D printing system that allows deposition and rapid solidification of a resin layer on a non-uniform substrate surface in order to form a 3D printed article of various shape and size. The extrusion nozzle may include a center tube that facilitates a flow of resin through the center tube to deposit the resin layer on the substrate surface. A second tube may surround the center tube such that a first annular space between the center tube and the second tube is vacuum-insulated to maintain the resin at a constant temperature as it flows through the center tube and is deposited. A third tube may surround the second tube, and guide a deposition of a cooling gas onto the deposited resin layer through a second annular space between the second tube and the third tube to rapidly solidify the resin layer. |
申请公布号 |
US2017066194(A1) |
申请公布日期 |
2017.03.09 |
申请号 |
US201415123144 |
申请日期 |
2014.03.11 |
申请人 |
EMPIRE TECHNOLOGY DEVELOPMENT LLC |
发明人 |
Bromer Nicholas Sheppard |
分类号 |
B29C67/00;B33Y30/00;B33Y50/02;B33Y10/00 |
主分类号 |
B29C67/00 |
代理机构 |
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代理人 |
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主权项 |
1. An extrusion nozzle for a three-dimensional (3D) printing system to deposit a layer of resin onto a surface of a substrate, the extrusion nozzle comprising:
a vacuum-insulated tube comprising:
a center tube configured to facilitate a flow of resin therethrough from a first end to a second end thereof; anda second tube surrounding the center tube, wherein a first annular space between the center tube and the second tube is vacuum-insulated; and a third tube configured to surround the vacuum-insulated tube and guide a deposition of a cooling gas onto the resin layer at the surface of the substrate through a second annular space between the vacuum-insulated tube and the third tube to rapidly solidify the resin layer. |
地址 |
Wilmington DE US |