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Title:
PROJECTION LASER HEATING SYSTEM AND 3D PRINTER
Document Type and Number:
WIPO Patent Application WO/2019/148653
Kind Code:
A1
Abstract:
Disclosed are a projection laser heating system and a 3D printer, wherein the projection laser heating system comprises an infrared laser (100), a laser power adjustment device, a beam splitter set, projection assemblies (300), and a workbench (400) provided with a pre-heating device and used for laying powder material, wherein the laser power adjustment device comprises a first rotary clamping assembly (201), a power meter (203), and a first half-wave plate (200), a polarization light splitter (202) and a beam expander set (204) arranged sequentially in the same direction. The first half-wave plate (200) is mounted on the first rotary clamping assembly (201); and the projection assemblies (300) are two or more in number and are respectively arranged in an emergence direction of the beam splitter set, and each projection assembly (300) comprises a DMD chip (301). The projection laser heating system further comprises a control system which controls the first rotary clamping assembly (201) and the DMD chip (301), and separately controls the shape and direction of projection of each DMD chip (301), such that the shape of projection of each DMD chip (301) onto the workbench is identical and coincides.

Inventors:
WU, Min (1001 Factory Building No. 7, Longgang Avenue Pingxi Community, Pingdi Street, Longgang Distric, Shenzhen Guangdong 7, 518117, CN)
LIU, Ye (1001 Factory Building No. 7, Longgang Avenue Pingxi Community, Pingdi Street, Longgang Distric, Shenzhen Guangdong 7, 518117, CN)
JIANG, Ronggui (1001 Factory Building No. 7, Longgang Avenue Pingxi Community, Pingdi Street, Longgang Distric, Shenzhen Guangdong 7, 518117, CN)
GU, Xiaochuan (1001 Factory Building No. 7, Longgang Avenue Pingxi Community, Pingdi Street, Longgang Distric, Shenzhen Guangdong 7, 518117, CN)
Application Number:
CN2018/082749
Publication Date:
August 08, 2019
Filing Date:
April 12, 2018
Export Citation:
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Assignee:
SHENZHEN UPRISE 3D TECHNOLOGY CO., LTD. (1001 Factory Building No. 7, Longgang Avenue Pingxi Community, Pingdi Street, Longgang Distric, Shenzhen Guangdong 7, 518117, CN)
International Classes:
B29C64/153; B29C64/268; B29C64/273; B29C64/393; B29C67/00; B33Y10/00; B33Y30/00; B33Y50/02
Domestic Patent References:
WO2013057636A12013-04-25
Foreign References:
CN105856573A2016-08-17
CN107336440A2017-11-10
CN106662753A2017-05-10
CN106738908A2017-05-31
CN105965015A2016-09-28
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (201 Auto Electric Power Building, North Zone High-Tech Industrial Park,No. 3 Songping Mountain Road, Yuehai Street, Nanshan Distric, Shenzhen Guangdong 7, 518057, CN)
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