US 12,083,727 B2
Control device for injection molding machine, and control method for injection molding machine
Yutaka Tsutsumi, Chiba (JP); Daigo Hotta, Chiba (JP); Shun Shibuya, Chiba (JP); and Yuki Matsui, Chiba (JP)
Assigned to SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed by SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed on Nov. 15, 2022, as Appl. No. 18/055,477.
Claims priority of application No. 2021-199207 (JP), filed on Dec. 8, 2021.
Prior Publication US 2023/0173727 A1, Jun. 8, 2023
Int. Cl. B29C 45/76 (2006.01)
CPC B29C 45/7653 (2013.01) [B29C 2945/76016 (2013.01); B29C 2945/76224 (2013.01); B29C 2945/76505 (2013.01); B29C 2945/76702 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A control device for an injection molding machine, the control device comprising:
a processor configured to:
change, in a filling step of filling an inside of a mold device with a molding material during clamping, a set value of clamping force from a first set value to a second set value that is larger than the first set value, at a predetermined pressurizing timing in a middle of the filling step;
monitor a change in an actual value of the clamping force due to a change in the set value of the clamping force,
determine adequacy of the predetermined pressurizing timing based on the change in the actual value of the clamping force monitored by the processor, and
adjust the predetermined pressurizing timing based on a determination of the adequacy of the predetermined pressurizing timing.