Journal of Drive and Control (드라이브 ㆍ 컨트롤)

The Korean Society for Fluid Power and Construction Equipment (유공압건설기계학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Cycle Time and Power Saving Effect of a Hydraulic Hybrid Injection Molding Machine using a Servo Motor

서보모터를 이용한 유압 하이브리드식 사출성형기의 공정시간 및 절전효과에 관한 연구

  • Yun, Hongsik (Department of Mechanical System Engineering, Kumoh National Institute of Technology) ;
  • Kim, Sungdong (Department of Mechanical System Engineering, Kumoh National Institute of Technology)
  • Received : 2020.06.01
  • Accepted : 2020.07.15
  • Published : 2020.09.01
Download PDF
⟨ Previous Next ⟩

Abstract

The cycle time and power saving effect of a hydraulic hybrid injection molding machine using a servo motor are considered in this paper. In order to verify control characteristics, such as pressure and speed, experiments were performed with the hydraulic hybrid injection molding machine, clamping force of 110 ton. The power consumption and production cycle time of a conventional hydraulic injection molding machine were measured to compare its performances with the hydraulic hybrid injection molding machine. An injection molding machine with a clamping force of 1300 ton was used as the conventional machine, the hybrid machine was implemented by replacing its induction motors with servo motors. In the remodeled hybrid machine, experiments were performed to investigate how the displacement of the mold clamping pump affects the power consumption and production cycle time. The results showed that the production cycle time of the hybrid injection molding is similar to a conventional hydraulic injection molding machine but with a significant energy saving of about 40%.

Keywords

References

  1. Korea Plastic Moulding Information Center, "Easy to Know Plastic Injection Molding Machine", pp.9-12, 2002.
  2. S. H. Park, M. G. Park and Y. W. Joung, "Practical Application Example of an Electro Hydrostatic Actuator (Development of 3000 ton Injection Molding Machine)", Journal of Drive and Control, Vol.9, No.3, pp.56-66, 2012. https://doi.org/10.7839/ksfc.2012.9.3.056
  3. Y. S. Kim, "A Study on the Development History and Future Development Direction of Injection Molding Machine", Master's Thesis, Seoul National University of Science and Technology, 2015.
  4. H. S. Jeong and S. W. Jeong, "Comparison of a Electric Motor Speed Control Characteristics for a Hydraulic Control System", Proceedings of the KFPS 2009 Autumn Conference, pp.79-84, 2009.
  5. H. S. Jeong and S. W. Jeong, "Comparative Characteristic Analysis of a Hydraulic Control System Using a Speed Controlled Hydraulic Pump", Transactions of The Korea Fluid Power Systems Society, Vol.7, No.3, pp.13-19, 2010.
  6. Y. S. Yoon et al., "A Study on Energy Saving of the Hybrid Excavator System", Proceedings of the KFPS 2008 Autumn Conference, pp.69-75, 2008.
  7. J. I. Yoon, "A Study on Energy Saving and Regeneration of Electric Excavator Boom System Using Electro-Hydraulic Actuators", Doctoral Dissertation, University of Ulsan, 2012.
  8. J.-H. Kim and Y.-S. Hong, "Robust Internalloop Compensation of Pump Velocity Controller for Precise Force Control of an Electro-hydrostatic Actuator", Journal of Drive and Control, Vol.15, No.4, pp.55-60, 2018. https://doi.org/10.7839/KSFC.2018.15.4.055
  9. J.-H. Kim and Y.-S. Hong, "Investigation of System Efficiency of an Electro-hydrostatic Actuator with an External Gear Pump", Journal of Drive and Control, Vol.16, No.2, pp.15-21, 2019. https://doi.org/10.7839/KSFC.2019.16.2.015
  10. S. H. Park, "Characteristics of an Electro Hydrostatic Actuator and Application Fields", Transactions of the Korea Fluid Power Systems Society, Vol.6, No.1, pp.2-10, 2009.
  11. Tokimec Korea Power Control Co., Ltd., http://www.tokimec.co.kr
  12. Dongshin EN-Tech Co., Ltd., http://www.hybridtech.co.kr

Cited by

  1. 터빈로터 중심공 검사용 자기주행 공압형 로봇 개발 vol.18, pp.1, 2020, https://doi.org/10.7839/ksfc.2021.18.1.031