US 12,070,906 B2
Three-dimensional shaping device and method for manufacturing three-dimensional shaped object
Tatsuo Akasaka, Azumino (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Jan. 25, 2022, as Appl. No. 17/583,299.
Claims priority of application No. 2021-009951 (JP), filed on Jan. 26, 2021.
Prior Publication US 2022/0234294 A1, Jul. 28, 2022
Int. Cl. B29C 64/35 (2017.01); B29C 64/118 (2017.01); B29C 64/209 (2017.01); B29C 64/232 (2017.01); B29C 64/236 (2017.01); B29C 64/245 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 40/00 (2020.01)
CPC B29C 64/35 (2017.08) [B29C 64/118 (2017.08); B29C 64/209 (2017.08); B29C 64/232 (2017.08); B29C 64/236 (2017.08); B29C 64/245 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12)] 18 Claims
OG exemplary drawing
 
1. A three-dimensional shaping device, comprising: an injection head including: a plasticizing mechanism configured to plasticize a plasticizing material to generate a shaping material; and a nozzle from which the shaping material is ejected; a stage on which the shaping material is stacked; a motor configured to change a relative position between the injection head and the stage; a cleaning mechanism including a brush and a blade, each of the brush and the blade extending along a first direction so that the brush and the blade are parallel to each other and face each other along a second direction perpendicular to the first direction; a memory configured to store a program; and a processor configured to execute the program so as to: cause the nozzle to reciprocally move several times along a zigzag path in a cleaning operation when viewed along a third direction perpendicular to the first and second directions such that the nozzle passes from a side of the blade toward a side of the brush to contact a first point of at least one of the brush and blade, and the nozzle passes from the side of the brush toward the side of the blades to contact a second point of at least one of the brush and the blade, the first point and the second point are different positions in the first direction, wherein the nozzle contacts the different positions of at least one of the brush and the blade several times without contacting the same position of the brush or the blade twice during an entirety of the cleaning operation,
wherein the brush and the blade are disposed at a height at which the brush and the blade are configured to come into contact with the nozzle, and the brush and the blade have a melting point higher than a plasticizing temperature of the plasticizing material, and have hardness lower than hardness of the nozzle.