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Study of a Synchronous Positioning Control at Pressure Control between Multi-AC Servomotors Driven in Injection Molding Machine

Research Project

Project/Area Number 13650264
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Dynamics/Control
Research InstitutionKurume National College of Technology

Principal Investigator

AKASAKA Noriyuki  KURUME NATIONAL COLLEGE OF TECHNOLOGY, DEPARTMENT OF CONTROL AND INFORMATION ENGINEERING, PROFESSOR, 制御情報工学科, 教授 (20332083)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥3,100,000 (Direct Cost: ¥3,100,000)
KeywordsSynchronous Positioning Control / Multi-AC servomotors / Injection Pressure Control / Injection Velocity Control / Injection Molding Machine / Bumpless Transfer / Simulator / Similarity Law / 小型シミュレータ装置 / 射出・保圧機構 / 模擬負荷 / 油圧シリンダ
Research Abstract

In coping with the trend toward the much higher powered electric-motor driven injection molding machine, multi-AC servomotors control system have become necessary in order to control the molding machine mechanism. Thus, it is inevitable to use the synchronous positioning control technique not to cause the excessive mechanical stress in the molding machine body. Accordingly, it is much necessary to have a load simulator of the molding machine to study the synchronous control technique.
Firstly this study clarifies the similarity law between the actual molding machine and the simulator so that we are able to estimate the control performance at the actual machine from that at the simulator and to get the control gain parameters at the actual machine from that at the simulator to realize the same control performance as the simulator. This study also shows the design method of the simulator based on the similarity law at the injection molding control and the manufactured simulator is used to study the synchronous positioning control technique.
Secondly it is possible to realize the synchronous positioning control in the injection velocity control by using position feedback signals from each motor pulse-generators. However in the injection pressure control it is much difficult to realize the synchronous positioning control because the pressure-detector signal have to be used in place of the position feedback signals. This study clarifies the synchronous positioning control method during the injection pressure control by using both the pressure-detector signal and position feedback signals. The experimental results by using the simulator showed that the synchronous positioning control error was much less than 1 micrometer in the pressure control. This study also showed the bumpless transfer technique from the injection velocity control to the injection pressure control.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 赤坂則之: "電動射出成形機の負荷シミュレータの相似則研究"日本機械学会2002年次大会講演論文集. VII. 273-274 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 赤坂則之: "電動射出成形機負荷シミュレータの相似則に基づく設計法"日本機械学会2002年次大会後援論文集. VII. 275-276 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 赤坂則之: "電動式射出成形機用負荷シミュレータの射出速度制御における相似則"日本機械学会論文集C1編. (掲載決定,掲載号未定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 赤坂則之: "電動式射出成形機多軸駆動法による圧力制御での位置同期制御法"SICE Annual Conference 2003 in Fukui.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] N.Akasaka: "Study of Similarity Law between Electric-Motor Driven Injection Molding Machine and Simulator at Injection Velocity Control"Trans, of JSME-C. 69-682 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] N.Akasaka: "A Synchronous Position Control Method at Pressure Control between Multi-AC Servomotors Driven in Injection Molding Machine"Proceeding of SICE 2003 Annual Conference in Fukui. 2003-8. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] N.Akasaka: "Study of Similarity Law between Electric-motor Driven Injection Molding Machine and Simulator"Mechanical Engineering Congress, 2002 Japan. VII. 273-274 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] N.Akasaka: "Design Method of a Load Simulator based on the Similarity Law at the Electric-Motor Driven Injection Moldrng Machine Control"Mechanical Engineering Congress, 2002 Japan. VII. 275-276 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 赤坂則之: "電動射出成形機の負荷シミュレータの相似則研究"日本機械学会2002年次大会講演論文集. VII. 273-274 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 赤坂則之: "電動射出成形機負荷シミュレータの相似則に基づく設計法"日本機械学会2002年次大会後援論文集. VII. 275-276 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 赤坂則之: "電動式射出成形機用負荷シミュレータの射出速度制御における相似則"日本機械学会論文集Cl編. (掲載決定,掲載号未定).

    • Related Report
      2002 Annual Research Report
  • [Publications] 赤坂則之: "電動式射出成形機多軸駆動法による圧力制御での位置同期制御法"SICE Annual Conference 2003 in Fukui.

    • Related Report
      2002 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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