The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 27, 2022

Filed:

Nov. 21, 2019
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Kohei Yuwaki, Shiojiri, JP;

Koichi Saito, Matsumoto, JP;

Kazuhide Nakamura, Asahi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 19/18 (2006.01); B29C 64/393 (2017.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B29C 64/35 (2017.01); B33Y 40/00 (2020.01); B29C 64/209 (2017.01);
U.S. Cl.
CPC ...
B29C 64/393 (2017.08); B29C 64/209 (2017.08); B29C 64/35 (2017.08); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/02 (2014.12); G05B 19/182 (2013.01); G05B 2219/49007 (2013.01);
Abstract

A three-dimensional shaping apparatus includes a melting section providing a shaping material to a channel, a nozzle ejecting the shaping material to a shaping region of a shaping table, an ejection-amount adjusting mechanism adjusting an amount of the shaping material from the nozzle, a suction member sucking the shaping material in the channel, a memory configured to store a program, and a processor configured to execute the program so as to control the three-dimensional shaping apparatus. The processor is configured to stop the ejection of the shaping material and, thereafter, prior to resumption of the ejection of the shaping material, execute material purge processing for discharging the shaping material remaining in the melting section to a region different from the shaping region. The suction member is located closer to the nozzle than the ejection-amount adjusting mechanism in the first channel.


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