US 12,251,866 B2
Control method of injection molding machine and control device of injection molding machine
Hirotsugu Marumoto, Chiba (JP); Masahiro Iwahashi, Chiba (JP); Yutaka Tsutsumi, Chiba (JP); and Kazuya Hiraiwa, Chiba (JP)
Assigned to SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed by SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo (JP)
Filed on Aug. 24, 2022, as Appl. No. 17/821,860.
Claims priority of application No. 2021-138231 (JP), filed on Aug. 26, 2021.
Prior Publication US 2023/0064024 A1, Mar. 2, 2023
Int. Cl. B29C 45/78 (2006.01); B29C 45/80 (2006.01)
CPC B29C 45/78 (2013.01) [B29C 45/80 (2013.01); B29C 2945/7604 (2013.01); B29C 2945/76107 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A control device of an injection molding machine that molds a molding product including a skin layer and a core layer in a mold unit by injecting a molding material to the mold unit from a nozzle, the control device comprising:
a temperature control part configured to control at least one heater provided separately from the mold unit and attached to a cylinder of the injection molding machine, and using the at least one heater to control a first temperature of the skin layer and a second temperature of the core layer, wherein the molding material forms the core layer which is filled inside the skin layer while forming the skin layer, and the molding material that forms the core layer and the skin layer is the same.