US 11,654,603 B2
Injection molding apparatus and injection molding method
Shia-Chung Chen, Taoyuan (TW); Yung-Hsiang Chang, Taoyuan (TW); Tzu-Hsiang Wei, Taoyuan (TW); and Pi-Lin Tsai, Taoyuan (TW)
Assigned to Chung Yuan Christian University, Taoyuan (TW)
Filed by Chung Yuan Christian University, Taoyuan (TW)
Filed on Sep. 22, 2020, as Appl. No. 17/27,720.
Claims priority of application No. 109126325 (TW), filed on Aug. 4, 2020.
Prior Publication US 2022/0040897 A1, Feb. 10, 2022
Int. Cl. B29C 45/78 (2006.01); B29C 45/37 (2006.01); B29C 45/77 (2006.01)
CPC B29C 45/78 (2013.01) [B29C 45/37 (2013.01); B29C 45/77 (2013.01); B29C 2945/7604 (2013.01); B29C 2945/76006 (2013.01); B29C 2945/7626 (2013.01); B29C 2945/76498 (2013.01); B29C 2945/76531 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An injection molding apparatus, comprising:
a mold comprising a mold cavity, wherein inner surfaces of the mold cavity comprises a plurality of concave portions;
an injection device adapted to inject a material into the mold cavity such that the material is formed into a forming article; and
a plurality of sensors disposed on the mold and adapted to sense a plurality of temperatures and a plurality of pressures in the mold cavity, wherein at least two of the plurality of sensors are located at one of the inner surfaces of the mold cavity and corresponds to a surface of the forming article, at least another two of the plurality of sensors are located at another one of the inner surfaces of the mold cavity and correspond to another surface of the forming article, the plurality of concave portions correspond to a plurality of protruding portions of the forming article respectively, and the plurality of sensors are located in the plurality of concave portions respectively,
wherein each of the plurality of concave portions corresponds to only one of the plurality of sensors.