Three-dimensional shaping device

Patent metadata

Field	Value
Publication number	US-12502830-B2
Application number	US-202418616774-A
Country	US
Kind code	B2
Filing date	Mar 26, 2024
Priority date	Mar 29, 2023
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

A three-dimensional shaping device includes a stage having a shaping surface formed with a first, second, third, and fourth groove, a discharge unit configured to supply a shaping material to the shaping surface, a moving mechanism configured to relatively move the stage and the discharge unit, and a control unit configured to control the discharge unit and the moving mechanism. The control unit is configured to execute a control of forming a first shaping line in the first groove, a control of forming a second shaping line in the second groove, a control of forming a third shaping line in the third groove, a control of forming a fourth shaping line in the fourth groove, a control of forming a first floor layer that couples the first and second shaping lines, and a control of forming a second floor layer that couples the third and fourth shaping lines.

First claim

What is claimed is:

1 . A three-dimensional shaping device for shaping a three-dimensional shaped object, the three-dimensional shaping device comprising:
a stage having a shaping surface formed with a first groove extending in a first direction, a second groove extending in the first direction, a third groove extending in the first direction, and a fourth groove extending in the first direction; a discharge unit configured to supply a shaping material to the shaping surface; a moving mechanism configured to move the stage and the discharge unit relative to each other; and a control unit configured to control the discharge unit and the moving mechanism, wherein the second groove is formed between the first groove and the third groove, the third groove is formed between the second groove and the fourth groove, the control unit is configured to execute
first control of forming a first shaping line by supplying the shaping material to the first groove while moving the discharge unit relative to the stage in the first direction,
second control of forming a second shaping line by supplying the shaping material to the second groove while moving the discharge unit relative to the stage in the first direction,
third control of forming a third shaping line by supplying the shaping material to the third groove while moving the discharge unit relative to the stage in the first direction,
fourth control of forming a fourth shaping line by supplying the shaping material to the fourth groove while moving the discharge unit relative to the stage in the first direction,
fifth control of forming a first floor layer that couples the first shaping line and the second shaping line by supplying the shaping material toward the shaping surface while moving the discharge unit relative to the stage, and
sixth control of forming a second floor layer that couples the third shaping line and the fourth shaping line by supplying the shaping material toward the shaping surface while moving the discharge unit relative to the stage,
the three-dimensional shaped object is shaped on a first underlayer and a second underlayer, the first underlayer includes the first shaping line, the second shaping line, and the first floor layer, and the second underlayer includes the third shaping line, the fourth shaping line, and the second floor layer.

2 . The three-dimensional shaping device according to claim 1 , wherein
the control unit is configured to execute seventh control of forming a raft layer that comes into contact with the three-dimensional shaped object by supplying the shaping material toward the shaping surface while moving the discharge unit relative to the stage.

3 . The three-dimensional shaping device according to claim 2 , wherein
the raft layer is formed in a manner of straddling the first floor layer and the second floor layer.

4 . The three-dimensional shaping device according to claim 1 , wherein
the shaping material includes a crystalline resin.

5 . The three-dimensional shaping device according to claim 1 , wherein
the control unit is configured to execute, prior to the execution of the fifth control, eighth control of forming a fifth shaping line by supplying the shaping material to a fifth groove formed between the first groove and the second groove in the second direction while moving the discharge unit relative to the stage in the first direction, and the control unit is configured to form the first floor layer that couples the first shaping line, the second shaping line, and the fifth shaping line in the fifth control.

6 . The three-dimensional shaping device according to claim 1 , wherein
the first floor layer and the second floor layer are formed on the same plane, and at least a part of the first floor layer and at least a part of the second floor layer come into contact with each other.

Assignees

• Seiko Epson Corp

Inventors

• Watanabe Manabu
• Tsunoya Akihiko

Classifications

• B29C64/393

  for controlling or regulating additive manufacturing processes · CPC title

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B33Y50/02 Primary

  for controlling or regulating additive manufacturing processes · CPC title

• B29C64/245 Primary

  Platforms or substrates (support structures intended to be sacrificed after manufacture B29C64/40) · CPC title

• B29C64/106

  using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material · CPC title