公开(公告)号：US10661388B2

公开(公告)日：2020-05-26

申请号：US15949420

申请日：2018-04-10

Applicant: 3D Systems, Inc.

Inventor： Robert Beauchamp

IPC: B23K26/144 ,  B33Y40/00 ,  B33Y30/00 ,  B23K37/00 ,  B23K26/12 ,  B23K26/342 ,  B22F3/105

Abstract: A three dimensional printing system includes a powder delivery system and a controller. The powder delivery system includes a cartridge, a powder transfer assembly, a vacuum source, and source of inert gas. The cartridge includes a lower portion defining a lower cavity containing powder and an upper portion. The powder transfer assembly includes a cowling and a loader suction tube that extends through the cowling. The controller is configured to: (1) lower the cowling into sealing engagement with the upper portion of the cartridge whereby an upper cavity is defined between the cowling and the upper portion of the cartridge, (2) operate the source of inert gas to positively pressurize the upper cavity, and (3) lower the loader suction tube into the powder while operating the vacuum source to extract the powder.

公开(公告)号：US20180185915A1

公开(公告)日：2018-07-05

申请号：US15838449

申请日：2017-12-12

Applicant: 3D Systems, Inc.

Inventor： Robert Beauchamp

IPC: B22F3/105 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B22F2003/1059 ,  B22F2201/20 ,  B22F2202/17 ,  B29C64/329 ,  B29C64/357 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  Y02P10/295

Abstract: A three dimensional (3D) printing system includes a print engine, a first powder handling module, a sieve, a second powder handling module, and a controller. The controller operates the print engine to fabricate 3D articles of manufacture. The controller operates the first powder handling module to transfer excess powder from the print engine to the first powder handling module and to receive new powder. The first powder handling module dispenses powder to the sieve. The controller operates the second handling module to transfer powder from the sieve to the second powder handling module. The second powder handling module provides powder to the print engine.

公开(公告)号：US10773305B2

公开(公告)日：2020-09-15

申请号：US15838449

申请日：2017-12-12

Applicant: 3D Systems, Inc.

Inventor： Robert Beauchamp

IPC: B22F3/105 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y40/00 ,  B29C64/357 ,  B29C64/329

Abstract: A three dimensional (3D) printing system includes a print engine, a first powder handling module, a sieve, a second powder handling module, and a controller. The controller operates the print engine to fabricate 3D articles of manufacture. The controller operates the first powder handling module to transfer excess powder from the print engine to the first powder handling module and to receive new powder. The first powder handling module dispenses powder to the sieve. The controller operates the second handling module to transfer powder from the sieve to the second powder handling module. The second powder handling module provides powder to the print engine.

公开(公告)号：US20180290237A1

公开(公告)日：2018-10-11

申请号：US15949420

申请日：2018-04-10

Applicant: 3D Systems, Inc.

Inventor： Robert Beauchamp

IPC: B23K26/144 ,  B33Y30/00 ,  B23K26/12 ,  B23K26/342 ,  B23K37/00

CPC classification number: B23K26/144 ,  B22F3/1055 ,  B22F2998/10 ,  B22F2999/00 ,  B23K26/123 ,  B23K26/128 ,  B23K26/342 ,  B23K37/006 ,  B33Y30/00 ,  B33Y40/00 ,  B22F3/004 ,  B22F2201/10

Abstract: A three dimensional printing system includes a powder delivery system and a controller. The powder delivery system includes a cartridge, a powder transfer assembly, a vacuum source, and source of inert gas. The cartridge includes a lower portion defining a lower cavity containing powder and an upper portion. The powder transfer assembly includes a cowling and a loader suction tube that extends through the cowling. The controller is configured to: (1) lower the cowling into sealing engagement with the upper portion of the cartridge whereby an upper cavity is defined between the cowling and the upper portion of the cartridge, (2) operate the source of inert gas to positively pressurize the upper cavity, and (3) lower the loader suction tube into the powder while operating the vacuum source to extract the powder.