US 12,290,971 B2
Injection molding system
Koki Kodaira, Tokyo (JP); Yuichi Yanahara, Moriyama (JP); Yohei Minatoya, Tokyo (JP); and Junko Tajima, Amsterdam (NL)
Assigned to Canon Virginia, Inc., Newport News, VA (US); and Canon U.S.A., Inc., Melville, NY (US)
Appl. No. 17/277,722
Filed by Canon Virginia, Inc., Newport News, VA (US); and CANON U.S.A., INC., Melville, NY (US)
PCT Filed Sep. 19, 2019, PCT No. PCT/US2019/051983
§ 371(c)(1), (2) Date Mar. 18, 2021,
PCT Pub. No. WO2020/061348, PCT Pub. Date Mar. 26, 2020.
Claims priority of provisional application 62/734,914, filed on Sep. 21, 2018.
Prior Publication US 2021/0354358 A1, Nov. 18, 2021
Int. Cl. B29C 45/80 (2006.01); B29C 45/04 (2006.01)
CPC B29C 45/80 (2013.01) [B29C 45/0433 (2013.01); B29C 2945/76013 (2013.01); B29C 2945/76083 (2013.01); B29C 2945/76321 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An injection molding system, comprising:
an injection molding apparatus configured to perform injection molding with a plurality of dies;
a conveyor apparatus that includes an actuator that provides power to alternately convey a first die of the plurality of dies and a second die of the plurality of dies into the injection molding apparatus for injection of a molded material;
a force detection sensor configured to detect a force applied to the actuator;
a plurality of detection sensors for detecting at least one die of the plurality of dies; and
a controller configured to control the conveyor apparatus to stop a conveying operation based on a detection result by the force detection sensor while the plurality of dies are moved by the actuator,
wherein, when the first die is conveyed into the injection molding apparatus, the second die is simultaneously conveyed to a cooling position external to the injection molding apparatus,
wherein, when the second die is conveyed into the injection molding apparatus, the first die is simultaneously conveyed to a cooling position external to the injection molding apparatus, and
wherein, after finishing conveying the die into the injection molding apparatus, the controller prohibits further conveying operation based on a detection result of the die by each detection sensor of the plurality of detection sensors.