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.
Patent No.:
Date of Patent:
Feb. 11, 2025
Filed:
Apr. 13, 2022
Seiko Epson Corporation, Tokyo, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A three-dimensional shaping device includes a plasticization unit configured to plasticize a material into a shaping material using a rotating screw; a drive unit configured to rotate the screw; a supply flow path through which the shaping material flows; a nozzle configured to discharge the shaping material; a discharge amount adjusting mechanism configured to switch between stop and restart of discharge of the shaping material from the nozzle by a valve portion provided in the supply flow path; a pressure measuring portion configured to measure a pressure of the shaping material in the supply flow path between the plasticization unit and the valve portion; and a control unit configured to adjust rotation of the screw by controlling the drive unit according to a measured value of the pressure which is measured. The control unit controls the drive unit under a first control during a period when the discharge of the shaping material from the nozzle is not stopped, and controls the drive unit under a second control during a period when the discharge of the shaping material from the nozzle is stopped, and a degree of adjustment of the rotation of the screw under the second control is smaller than a degree of adjustment of the rotation of the screw under the first control.