JPS5469554A - Controlling method for looper - Google Patents

Controlling method for looper

Info

Publication number
JPS5469554A
JPS5469554A JP13647677A JP13647677A JPS5469554A JP S5469554 A JPS5469554 A JP S5469554A JP 13647677 A JP13647677 A JP 13647677A JP 13647677 A JP13647677 A JP 13647677A JP S5469554 A JPS5469554 A JP S5469554A
Authority
JP
Japan
Prior art keywords
looper
motor
torque
current
excess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP13647677A
Other languages
Japanese (ja)
Other versions
JPS5726164B2 (en
Inventor
Takuya Toshihiro
Koji Ueyama
Fumio Watanabe
Yoshiharu Hamazaki
Muneo Kawasaki
Kaname Nakagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Nippon Steel Corp
Original Assignee
Mitsubishi Electric Corp
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp, Nippon Steel Corp filed Critical Mitsubishi Electric Corp
Priority to JP13647677A priority Critical patent/JPS5469554A/en
Publication of JPS5469554A publication Critical patent/JPS5469554A/en
Publication of JPS5726164B2 publication Critical patent/JPS5726164B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B21B37/50—Tension control; Compression control by looper control

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

PURPOSE:To send a signal corresponding to the rotational speed of the torque motor as the feedback for the reference current of the torque motor, on purpose to raise the gain of the looper-angle-controller, by installing the excess-attenuation-compensator, when the looper angle is to be controlled to a reference value in the continuous rolling mill. CONSTITUTION:The looper 4 is arranged between the stands 2, 3, in the continuous rolling mill, for the purpose of absorbing the tension fluctuation of the strip, caused by the unbalance in the speeds of the strip, as the looper-angle-fluctuation. In this looper controller B, the excess sttenuation compensator 15 is installed on purpose to receive the rotational frequency of the looper motor, being detected by the looper- motor-rotational-frequency-detector 14; and then, the compensating torque for the excess attenuation, proportional to this rotational frequency, is operated and the result is inputted to the looper-motor-current-supply 8. The looper-motor-current- supply 8 operates the looper-motor-current corresponding to the torque generated by the looper motor, from the reference torque inputted by the looper-motor-reference- torque-arithmetic-unit 7 and the compensating torque for the excess attenuation; thus obtained current is supplied to the looper motor ACR 9 which then causes the looper motor 10 to generate the suitable torque.
JP13647677A 1977-11-14 1977-11-14 Controlling method for looper Granted JPS5469554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13647677A JPS5469554A (en) 1977-11-14 1977-11-14 Controlling method for looper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13647677A JPS5469554A (en) 1977-11-14 1977-11-14 Controlling method for looper

Publications (2)

Publication Number Publication Date
JPS5469554A true JPS5469554A (en) 1979-06-04
JPS5726164B2 JPS5726164B2 (en) 1982-06-03

Family

ID=15176009

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13647677A Granted JPS5469554A (en) 1977-11-14 1977-11-14 Controlling method for looper

Country Status (1)

Country Link
JP (1) JPS5469554A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103191934A (en) * 2012-01-09 2013-07-10 宝山钢铁股份有限公司 Forecasting method for loop length of hot continuous rolling mill

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2678617B1 (en) 2011-02-22 2019-06-12 Savo-Solar OY Method for manufacturing thermal absorber for solar thermal collector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103191934A (en) * 2012-01-09 2013-07-10 宝山钢铁股份有限公司 Forecasting method for loop length of hot continuous rolling mill
CN103191934B (en) * 2012-01-09 2014-10-29 宝山钢铁股份有限公司 Forecasting method for loop length of hot continuous rolling mill

Also Published As

Publication number Publication date
JPS5726164B2 (en) 1982-06-03

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