The Mold Close and Open Control of Injection Molding Machine Using Fuzzy Algorithm

  • Park, Jin-Hyun (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Lee, Young-Kwan (School of Mechanical Engineering, Sungkyunkwan University) ;
  • Kim, Hun-Mo (School of Mechanical Engineering, Sungkyunkwan University)
  • Published : 2005.06.02

Abstract

In this paper, the development of an IMM(Injection Molding Machine) controller is discussed. Presently, the Mold Close and Open Control Method of a toggle-type IMM is open-loop control. Through the development, a PC based control system was built instead of an existing controller and a closed-loop control replaced the previous control method by using PC based PLC. To control the nonlinear system of toggle type clamping unit, a fuzzy PI control algorithm was selected and it was programmed by an IL(Instruction List) and a LD(Ladder Diagram) on a PC based PLC. The application of fuzzy algorithm as the control method was also considered to change a control object like a mold replacement or an additional apparatus. For the development of an IMM controller, PC based PLC of PCI card type, distributed I/O modules with CANopen and Industrial PC and HMI (Human Machine Interface) software were used.

Keywords