JPS5765289A - Controller for speed of tandem rolling mill - Google Patents

Controller for speed of tandem rolling mill

Info

Publication number
JPS5765289A
JPS5765289A JP55140304A JP14030480A JPS5765289A JP S5765289 A JPS5765289 A JP S5765289A JP 55140304 A JP55140304 A JP 55140304A JP 14030480 A JP14030480 A JP 14030480A JP S5765289 A JPS5765289 A JP S5765289A
Authority
JP
Japan
Prior art keywords
speed
rolling
rolling mill
currents
drooping characteristic
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
JP55140304A
Other languages
Japanese (ja)
Other versions
JPS6314598B2 (en
Inventor
Yoji Yamashita
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55140304A priority Critical patent/JPS5765289A/en
Publication of JPS5765289A publication Critical patent/JPS5765289A/en
Publication of JPS6314598B2 publication Critical patent/JPS6314598B2/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
    • B21B37/52—Tension control; Compression control by drive motor control

Landscapes

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

Abstract

PURPOSE:To conduct smooth rolling by sufficiently utilizing the capacity of a motor at the time of the variation of tension within an allowable range and giving a drooping characteristic to the speed controller only when tension varies at some fixed value or higher. CONSTITUTION:The speed of the rolling rolls of each rolling mill is set by value obtained by multiplying a speed setter 17 and each speed regulator 18a, 18b. The speed of each rolling roll 2a, 2b is controlled so as to equalize by means of the speed controllers 5a, 5b power converters 4a, 4b and the motors 3a, 3b to each setting of the speed given. The motor currents of the motors 3a, 3b of each rolling mill are detected by means of detectors 12a, 12b, and only rolling currents are given to drooping characteristic circuits 15a, 15b through adjustable speed current removing circuits 13a, 13b. Blind sectors are formed to the detecting load currents of predetermined value or lower by means of blind sector setters 16a, 16b in the drooping characteristic circuits 15a, 15b.
JP55140304A 1980-10-07 1980-10-07 Controller for speed of tandem rolling mill Granted JPS5765289A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55140304A JPS5765289A (en) 1980-10-07 1980-10-07 Controller for speed of tandem rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55140304A JPS5765289A (en) 1980-10-07 1980-10-07 Controller for speed of tandem rolling mill

Publications (2)

Publication Number Publication Date
JPS5765289A true JPS5765289A (en) 1982-04-20
JPS6314598B2 JPS6314598B2 (en) 1988-03-31

Family

ID=15265666

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55140304A Granted JPS5765289A (en) 1980-10-07 1980-10-07 Controller for speed of tandem rolling mill

Country Status (1)

Country Link
JP (1) JPS5765289A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5910184A (en) * 1982-07-05 1984-01-19 Toshiba Corp Control device for motor
JPS60183988A (en) * 1984-03-01 1985-09-19 Toshiba Corp Controller for motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5910184A (en) * 1982-07-05 1984-01-19 Toshiba Corp Control device for motor
JPH0517796B2 (en) * 1982-07-05 1993-03-10 Tokyo Shibaura Electric Co
JPS60183988A (en) * 1984-03-01 1985-09-19 Toshiba Corp Controller for motor
JPH053234B2 (en) * 1984-03-01 1993-01-14 Tokyo Shibaura Electric Co

Also Published As

Publication number Publication date
JPS6314598B2 (en) 1988-03-31

Similar Documents

Publication Publication Date Title
JPS5765289A (en) Controller for speed of tandem rolling mill
JPS5666315A (en) Controlling method for sheet thickness in strip mill
JPS5564918A (en) Method and apparatus for automatic thickness control
JPS57160509A (en) Hot finish rolling method and its device
JPS56128609A (en) Speed controller for reversing mill
JPS54133463A (en) Method and apparatus for shape control in differential- speed rolling
US3211983A (en) Motor speed control apparatus
JPS56139210A (en) Controlling method for strip thickness in rolling mill
JPS57168715A (en) Method and device for tension controller of mandrel mill
JPS5650720A (en) Tension roller staightener
JPS5420942A (en) Controlling method for tension in tandem rolling mill
SU930811A1 (en) Device for controlling interstand tensions
JPS5768210A (en) Slip detecting method and interstand tension controlling method and apparatus using sand detecting method
JPS5747516A (en) Controlling method for shape of thin sheet
JPS54152658A (en) Controlling method for number of revolutions of axial roll in ring rolling mill
SU854477A1 (en) Apparatus for forming dynamic moment in the electric drive of rolling mill coiler
SU555929A1 (en) A device for adjusting the size of finished rolled products on a continuous bar-type mill
JPS55100811A (en) Control unit for sheet breadth
JPS56163017A (en) Controlling method for rolling mill in continuous rolling work
JPS5568114A (en) Controller for rolling work of multistage continuous rolling mill
JPS5633113A (en) Controlling method for tension in continuous hot rolling mill
SU1202649A1 (en) Apparatus for controlling speed of reversing cold rolling mill stand
JPS5497562A (en) Control of shape in rolling mill
JPS5456061A (en) Controlling method for continuous rolling mill
JPS5656711A (en) Controlling method for interstand tension of continuous rolling mill