Sensor-less force control for injection molding machine using reaction torque observer

Yuzuru Ohba, Kiyoshi Ohishi, Seiichiro Katsura, Yukio Yoshizawa, Koichi Kageyama, Katsuyuki Majima

研究成果: Conference contribution

14 引用 (Scopus)

抜粋

In recent years, the industrial researchers have paid attention to the not only position control but also force control. The one target of force control researches is the injection molding machine. The conventional force control system uses the force sensor to detect the inserted force. However, the force control system using force sensor has some problems such as the noise, the frequency band and so on. This paper newly proposes that the reaction torque observer is applied to the injection molding machine using ball screw. The reaction torque observer solves this problem of force sensor. However, it is well-known that the ball screw system has the resonant frequency caused by the torsion phenomenon. Hence, this torsion vibration affects both performances of force control and reaction torque estimation. This paper proposes a new reaction torque observer considering the torsion phenomenon and the friction torque. The proposed reaction torque observer estimates the reaction torque accurately. Moreover, as the outside of proposed reaction torque observer has its friction model, this friction model can be tuned without considering the stability condition of force control feedback system. The validity of proposed force control system is conflrmed by the experimental results. This paper realizes the low cost and space-saving injection molding machine by using the proposed force sensor-less control method.

元の言語English
ホスト出版物のタイトル2008 IEEE International Conference on Industrial Technology, IEEE ICIT 2008 - Conference Proceedings
DOI
出版物ステータスPublished - 2008 10 30
外部発表Yes
イベント2008 IEEE International Conference on Industrial Technology, IEEE ICIT 2008 - Chengdu, China
継続期間: 2008 4 212008 4 24

出版物シリーズ

名前Proceedings of the IEEE International Conference on Industrial Technology

Other

Other2008 IEEE International Conference on Industrial Technology, IEEE ICIT 2008
China
Chengdu
期間08/4/2108/4/24

    フィンガープリント

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

これを引用

Ohba, Y., Ohishi, K., Katsura, S., Yoshizawa, Y., Kageyama, K., & Majima, K. (2008). Sensor-less force control for injection molding machine using reaction torque observer. : 2008 IEEE International Conference on Industrial Technology, IEEE ICIT 2008 - Conference Proceedings [4608525] (Proceedings of the IEEE International Conference on Industrial Technology). https://doi.org/10.1109/ICIT.2008.4608525