公开(公告)号：US12151394B2

公开(公告)日：2024-11-26

申请号：US18265064

申请日：2022-01-05

Applicant: SAMSUNG E&A CO., LTD.

Inventor： Ho Sung Na ,  Dong Hyun Kim ,  Kwan Seon Hong ,  Hye Jin Ryu

IPC: B28B1/00 ,  B33Y30/00

Abstract: The present invention relates to a 3D printer for construction for printing and forming various structures, in which a spray pipe follows a nozzle for discharging concrete or mortar, and sprays a liquid material onto the surface of a printed object, thereby enabling the liquid material to be applied on the surface of the printed object. Through the present invention, the printing of the printed object and the spraying of the liquid material onto the surface of the printed object may be carried out simultaneously by means of the 3D printer for construction, and thus a rapid and uniform coating treatment of the printed object is possible, and an adequate wet state of the tissue of the printed object may be maintained.

公开(公告)号：US12128584B2

公开(公告)日：2024-10-29

申请号：US18265365

申请日：2022-01-05

Applicant: SAMSUNG E&A CO., LTD.

Inventor： Ho Sung Na ,  Dong Hyun Kim ,  Kwan Seon Hong ,  Hye Jin Ryu

IPC: B28B11/08 ,  B28B1/00 ,  B33Y30/00 ,  B33Y40/20

CPC classification number: B28B11/0845 ,  B28B1/001 ,  B33Y30/00 ,  B33Y40/20

Abstract: The present invention relates to a 3D printer for construction for printing and forming various structures wherein a roller 50 follows a nozzle 10 which discharges concrete, mortar, or the like, to bring an outer peripheral surface of the roller 50 to be in close contact with a surface of the printed object, and thus the surface of the printed object is flattened.
According to the present invention, a high-degree surface flattening work can be performed on the surface of a printed object simultaneously as the printed object is printed by a 3D printer for construction, thus enabling rapid and reliable flattening of the printed object and smooth surface forming.