2013 Fiscal Year Final Research Report
Challenge to 1-kHz force control response realization for the next-generation high performance electric injection molding machine
| Project/Area Number |
24656261
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Control engineering
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
OHISHI Kiyoshi 長岡技術科学大学, 工学部, 教授 (40185187)
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| Co-Investigator(Kenkyū-buntansha) |
WADA Yasuhiro 長岡技術科学大学, 工学部, 教授 (70293248)
MIYAZAKI Toshimasa 長岡技術科学大学, 工学部, 准教授 (90321413)
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| Co-Investigator(Renkei-kenkyūsha) |
OHNISHI Kouhei 慶應義塾大学, 理工学部, 教授 (80137984)
URUSHIHARA Shiro 香川高等専門学校, 電気情報工学科, 准教授 (90311092)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | 制御システム / モーションコントロール |
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| Research Abstract |
The development of an injection molding machine with a force control response is challenged. In this research, first, although the ejection axis of a ball screw drive produces the pressure error by vibration and nonlinear friction of a machine resonance system, this pressure error is oppressed by new friction compensation and oscillating inhibitory control. Such technology is applied to the same ball screw drive as an ejection axis, and the proposed force control system which realizes a next-generation high performance electric injection molding machine is constituted. Next, this research realizes the pressure control based on 1 KHz force sensing. It is impossible for the conventional injection molding machine to realize 1 KHz force sensing base force control. By using the high-speed sampling of FPGA, this research realizes the proposed friction free high order disturbance observer and the force control response based on 1-kHz force sensing. Moreover, its validity is verified.
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