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Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 34 , No. 2

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[ Special Issue : Application of Sensor Technology in Polymer Processing ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 33, No. 5, pp. 245-250
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Oct 2024
Received 27 Aug 2024 Revised 25 Sep 2024 Accepted 27 Sep 2024
DOI: https://doi.org/10.7735/ksmte.2024.33.5.245
사출 금형 히터의 센서 기반 제어 방법 연구
김미진^a ; 최재혁^b^{, *}


Sensor-Based Control Method for Heaters in Injection Molds
Mijin Kim^a ; Jae Hyuk Choi^b^{, *}
aDepartment of Future Technology Convergence Engineering, Graduate School, Gwangju University
bSchool of Mechanical & Automotive Engineering, Gwangju University
Correspondence to : ^*Tel.: +82-62-670-2947 E-mail address: jhchoi@gwangju.ac.kr (Jae Hyuk Choi).



Funding Information ▼ Gwangju University

Abstract

This study presents the development of an innovative control methodology for heaters used in molding processes. The conventional methodology for regulating heater temperature employs an on/off mechanism, which results in considerable temperature fluctuations across different regions. Hence, a control method is developed to minimize the temperature deviations between regions during the heating process. Applying this method to a sample mold reduced the temperature deviation by up to 69% without increasing the preheating time. Moreover, the efficiency of the proposed method is confirmed from the filling and curing processes. During the filling process, the maximum and minimum temperatures decreased by approximately 5%, respectively, thus indicating a reduction in temperature variation during the process. During the curing process, the minimum cure degree improved by approximately 91%, as evaluated based on the cure degree of the product.


Keywords: Injection mold, Cartridge heater, Control method, Thermoset molding, CAE

Acknowledgments

이 연구는 2024년도 광주대학교 대학 연구비의 지원을 받아 수행되었음.

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Mijin Kim

Ph.D Student in the Department of Future Technology Convergence Engineering, Graduate School, Gwangju University.Her research interest is Injection Molding Process.

E-mail: kmj5997@gmail.com

Jae Hyuk Choi

Professor in the School of Mechanical & Automotive Engineering, Gwangju University.His research interests are Optimization of Injection Molding Process and Thermoset Plastic Molding.

E-mail: jhchoi@gwangju.ac.kr