公开(公告)号：US20220118687A1

公开(公告)日：2022-04-21

申请号：US17564205

申请日：2021-12-28

申请人： Zhejiang University

发明人： Bin Zhang ,  Qian Xue ,  Qi Li ,  Liang Ma ,  Hua Ye

IPC分类号： B29C64/124 ,  B29C64/245 ,  B29C64/241 ,  B33Y10/00 ,  B29C64/209

摘要： The present invention provides a 3D printing method for a complex curved hollow structure. The 3D printing method comprises the following steps: firstly, manufacturing a bottom die attached with the complex curved hollow structure, and molding the complex curved hollow structure on a molding surface C of the bottom die by taking the bottom die as a support, wherein the molding of the bottom die and the molding of the complex curved hollow structure are completed in the same world coordinate system, and the bottom die does not need to be taken down from an objective table and then transplanted into a printing system of a to-be-molded part. The 3D printing method has the advantage that a high-precision complex curved hollow structure can be manufactured.

公开(公告)号：US11993013B2

公开(公告)日：2024-05-28

申请号：US17578398

申请日：2022-01-18

申请人： Zhejiang University

发明人： Bin Zhang ,  Qi Li ,  Yichen Luo ,  Teng Yang ,  Bo Zhang ,  Liang Ma ,  Huayong Yang

IPC分类号： B29C64/209 ,  B29C64/232 ,  B29C64/236 ,  B29C64/245 ,  B29C64/35 ,  B33Y30/00 ,  B33Y40/10

CPC分类号： B29C64/209 ,  B29C64/232 ,  B29C64/236 ,  B29C64/245 ,  B29C64/35 ,  B33Y30/00 ,  B33Y40/10

摘要： A multi-nozzle concurrent printing system includes a plurality of extrusion type nozzle assemblies, a three-axial translation mechanism and an objective table. Each nozzle assembly is provided with a nozzle, a storage barrel and a temperature control module; the three-axial translation mechanism includes an X-axial translation unit, a Y-axial translation unit and a Z-axial translation unit, and the nozzle assemblies are mounted on the Z-axial translation unit; and there are a plurality of nozzle assemblies, the printing system is provided with a concurrent calibration sensor, and the concurrent calibration sensor is taken as an original point of a coordinate system of the printing system. The printing system is provided with the plurality of nozzle assemblies which can work cooperatively or sequentially, the printing mode is flexible and changeable, and non-uniform mixing system forming of materials can be realized; and stable output of the materials in a formal printing task is guaranteed.

公开(公告)号：US20220134654A1

公开(公告)日：2022-05-05

申请号：US17578398

申请日：2022-01-18

申请人： Zhejiang University

发明人： Bin Zhang ,  Qi Li ,  Yichen Luo ,  Teng Yang ,  Bo Zhang ,  Liang Ma ,  Huayong Yang

IPC分类号： B29C64/209 ,  B29C64/232 ,  B29C64/236 ,  B29C64/245 ,  B29C64/35 ,  B33Y30/00 ,  B33Y40/10

摘要： A multi-nozzle concurrent printing system includes a plurality of extrusion type nozzle assemblies, a three-axial translation mechanism and an objective table. Each nozzle assembly is provided with a nozzle, a storage barrel and a temperature control module; the three-axial translation mechanism includes an X-axial translation unit, a Y-axial translation unit and a Z-axial translation unit, and the nozzle assemblies are mounted on the Z-axial translation unit; and there are a plurality of nozzle assemblies, the printing system is provided with a concurrent calibration sensor, and the concurrent calibration sensor is taken as an original point of a coordinate system of the printing system. The printing system is provided with the plurality of nozzle assemblies which can work cooperatively or sequentially, the printing mode is flexible and changeable, and non-uniform mixing system forming of materials can be realized; and stable output of the materials in a formal printing task is guaranteed.

公开(公告)号：US12097656B2

公开(公告)日：2024-09-24

申请号：US17564205

申请日：2021-12-28

申请人： Zhejiang University

发明人： Bin Zhang ,  Qian Xue ,  Qi Li ,  Liang Ma ,  Hua Ye

IPC分类号： B29C64/124 ,  B29C64/209 ,  B29C64/241 ,  B29C64/245 ,  B33Y10/00 ,  B29L11/00

CPC分类号： B29C64/124 ,  B29C64/209 ,  B29C64/241 ,  B29C64/245 ,  B33Y10/00 ,  B29L2011/0008

摘要： The present invention provides a 3D printing method for a complex curved hollow structure. The 3D printing method comprises the following steps: firstly, manufacturing a bottom die attached with the complex curved hollow structure, and molding the complex curved hollow structure on a molding surface C of the bottom die by taking the bottom die as a support, wherein the molding of the bottom die and the molding of the complex curved hollow structure are completed in the same world coordinate system, and the bottom die does not need to be taken down from an objective table and then transplanted into a printing system of a to-be-molded part. The 3D printing method has the advantage that a high-precision complex curved hollow structure can be manufactured.