JPS5550910A - Tension controller for rolling mill - Google Patents

Tension controller for rolling mill

Info

Publication number
JPS5550910A
JPS5550910A JP12457078A JP12457078A JPS5550910A JP S5550910 A JPS5550910 A JP S5550910A JP 12457078 A JP12457078 A JP 12457078A JP 12457078 A JP12457078 A JP 12457078A JP S5550910 A JPS5550910 A JP S5550910A
Authority
JP
Japan
Prior art keywords
tension
strip
rolls
speed
control circuit
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.)
Pending
Application number
JP12457078A
Other languages
Japanese (ja)
Inventor
Toshimi Mineura
Fumio Narisawa
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 JP12457078A priority Critical patent/JPS5550910A/en
Publication of JPS5550910A publication Critical patent/JPS5550910A/en
Pending 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 Metal Rolling (AREA)

Abstract

PURPOSE: To improve the rolling characteristic of the rolling mill, by automatically correcting the set value for tension of the strip correspondingly to the speed difference between two rolls, when the steel strip is rolled by changing the speed of upper and lower reducing rolls.
CONSTITUTION: When the strip 5 is rolled by upper and lower reducing rolls 3, 4, rotating at different speeds, the tension of the strip 5 between the former reducing rolls 1, 2, is detected by the tensiometer 12, whose output signal is inputted to the tension control circuit 13. The aim value for the allowable range of the tension of the strip 5, that is, the set data for upper and lower limits, are set by the allowable tension value setting circuit 16, whose output is inputted to the tension control circuit 13 through the allowable tension value correcting circuit 15. The tension control circuit 13 receives above two signals, and produces signal to the speed controller 8 or 9 through the switching circuit 14 when the actual tension exceeds the upper and lower limits set values, in order to change the speed of rolls 3, 4, or inputs the signal to the draft controller 17 in order to change the draft percentage; hereby, the tension of the strip 5 is controlled into the range of upper and lower limit tension values to be set.
COPYRIGHT: (C)1980,JPO&Japio
JP12457078A 1978-10-12 1978-10-12 Tension controller for rolling mill Pending JPS5550910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12457078A JPS5550910A (en) 1978-10-12 1978-10-12 Tension controller for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12457078A JPS5550910A (en) 1978-10-12 1978-10-12 Tension controller for rolling mill

Publications (1)

Publication Number Publication Date
JPS5550910A true JPS5550910A (en) 1980-04-14

Family

ID=14888744

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12457078A Pending JPS5550910A (en) 1978-10-12 1978-10-12 Tension controller for rolling mill

Country Status (1)

Country Link
JP (1) JPS5550910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010260067A (en) * 2009-04-30 2010-11-18 Nippon Steel Corp Sheet rolling mill and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010260067A (en) * 2009-04-30 2010-11-18 Nippon Steel Corp Sheet rolling mill and control method thereof

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