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Control system for accurate granular feeding using a screw feeder

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 42 Issue 1 Page 55-63
published_at 1991-10
KJ00000156869.pdf
[fulltext] 615 KB
Title
スクリューフィーダによる粉粒体の定量供給システム
Control system for accurate granular feeding using a screw feeder
Creators Wada Kenzo
Creators Morimoto Eiji
Creators Ito Shinji
Creators Yuzawa Takashi
Source Identifiers
Many modern manufacturing industries use granular materials as raw materials. A highly accurate feeder is needed to supply granules to processes in order to maintain the quality of products. There are various types of feeders depending on the purposes and the nature of supply materials. Improvements in current high accuracy feeders and/or control systems are required. In this study, a screw feeder together with a control system, including a flowmeter as a sensor, is discussed. Tow types of flowmeter are used. One is an impact-type flowmeter in current use. The other is a prototype strain-gauge-type flowmeter developed at the author's laboratory. The characteristics of the flowmeters, such as speed of response and the difference of response depending on the nature of supply granules, are examined. A control system using the flowmeters as the detecting element in order to supply fixed quantities with high accuracy was constructed. A self tuning regulator (STR) scheme is applied to the system as the control method. The results show that the strain-gauge-type flowmeter is more sensitive as a detecting element. Good response waves were obtained for a step reference input and a disturbance input.
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1991-10
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部