IDiyas

For the Inventor, By the Inventor

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.:

US 11911947 B1

PDFFull Text
Date of Patent:
Feb. 27, 2024

Filed:

Mar. 17, 2022

Injection molding machine, additive manufacturing apparatus, and pressure control method

Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Inventor:

Yasuhiro Yamamoto, Toyota, JP;

Assignee:

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Philip C Tucker

Assistant Examiner:

Andrew L Swanson

Int. Cl.
CPC ...
B29C 45/77 (2006.01); B29C 45/20 (2006.01); B29C 45/30 (2006.01); B29C 45/53 (2006.01); B29C 45/76 (2006.01); B29C 45/78 (2006.01); B29C 64/209 (2017.01); B29C 64/393 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01);
U.S. Cl.
CPC ...
B29C 45/77 (2013.01); B29C 45/20 (2013.01); B29C 45/30 (2013.01); B29C 45/53 (2013.01); B29C 45/7646 (2013.01); B29C 45/78 (2013.01); B29C 64/209 (2017.08); B29C 64/393 (2017.08); B29C 2945/7604 (2013.01); B29C 2945/7605 (2013.01); B29C 2945/76056 (2013.01); B29C 2945/76204 (2013.01); B29C 2945/76381 (2013.01); B29C 2945/76498 (2013.01); B29C 2945/76682 (2013.01); B29C 2945/76859 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12);
Abstract

An injection molding machine includes a cylinder that accommodates a molten resin, a discharging nozzle, a piston that discharges the molten resin from the discharging nozzle, and one or more processors configured to execute the following functions. The functions include calculating a target pressure at which a flow rate of the molten resin discharged from the discharging nozzle becomes an indicated flow rate, controlling a pressure of the molten resin in the cylinder such that the pressure becomes the target pressure, acquiring a temperature of the molten resin in the cylinder, and acquiring a pseudo-plastic viscosity corresponding to the temperature of the molten resin. The target pressure is calculated based on the indicated flow rate, the temperature of the molten resin, the pseudo-plastic viscosity, and the size of the discharging nozzle.

Find Patent Forward Citations

Loading…