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Control Strategy Analysis of the Precise Movement of Paper Machine Trim Squirt
Received:July 28, 2021  
DOI：10.11980/j.issn.0254-508X.2021.12.011
Key Words:paper machine trim squirt  mobile positioning  control system  double dead zone control
Fund Project:黑龙江省高等学校基本科研项目（2019-KYYWF-1383，2017-KYYWF-0588）。
Author NameAffiliationPostcode
SU Guining College of Mechanical and Electrical Engineering， Heilongjiang Forestry Vocational-Technical College， Mudanjiang， Heilongjiang Province，157000 157000
LEI Hailong Automation Branch of Mudanjiang Hengfeng Paper Co.， Ltd.， Mudanjiang， Heilongjiang Province， 157013 157013
LI Chao* College of Mechanical and Electrical Engineering， Harbin Engineering University， Harbin， Heilongjiang Province，150001
Heilongjiang Jiajian Internet Technology Co.， Ltd.， Mudanjiang， Heilongjiang Province，157000 		157000
ZHANG Baoyan School of Mechanical Engineering， Jiamusi University， Jiamusi， Heilongjiang Province， 154007 154007
WANG Haiyang School of Mechanical Engineering， Jiamusi University， Jiamusi， Heilongjiang Province， 154007 154007
BI Jihua College of Mechanical and Electrical Engineering， Heilongjiang Forestry Vocational-Technical College， Mudanjiang， Heilongjiang Province，157000 157000
SUN Fuming Heilongjiang Jiajian Internet Technology Co.， Ltd.， Mudanjiang， Heilongjiang Province，157000
Machine Repair Branch of Mudanjiang Hengfeng Paper Co.， Ltd.， Mudanjiang， Heilongjiang Province， 157013 		157013
WANG Zhiwen College of Mechanical and Electrical Engineering， Heilongjiang Forestry Vocational-Technical College， Mudanjiang， Heilongjiang Province，157000 157000
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Abstract:A trim squirt movement control system was designed to solve the problem of precise movement of the trim squirt used for paper threading and full-width positioning in the paper machine forming section. Based on the variable speed double dead zone method， the trim squirt movement and positioning were controlled. By controlling the switch of trim squirt movement speed， the double control dead zone was set in cooperation with it. The speed of the trim squirt was decreased to reduce the inertial error caused by the movement of the trim squirt to achieve the purpose of accurately controlling the positioning of the trim squirt. The results showed that the trim squirt displacement curve changed smoothly via variable speed double dead zone control method， and the error with the trim squirt setting position was 0.8% when it was stopped， which was more accurate. Compared with variable speed single dead zone system， the trim squirt movement response time was shortened， which provided a valuable reference for controlling the precise movement of trim squirt on the paper machine.
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