JPS55100811A - Control unit for sheet breadth - Google Patents

Control unit for sheet breadth

Info

Publication number
JPS55100811A
JPS55100811A JP856079A JP856079A JPS55100811A JP S55100811 A JPS55100811 A JP S55100811A JP 856079 A JP856079 A JP 856079A JP 856079 A JP856079 A JP 856079A JP S55100811 A JPS55100811 A JP S55100811A
Authority
JP
Japan
Prior art keywords
tension
breadth
rotational speed
operates
operator
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
JP856079A
Other languages
Japanese (ja)
Inventor
Yoshiharu Hamazaki
Fumio Watanabe
Keiichi Miura
Keiichi Fuse
Hideharu Togano
Original Assignee
Mitsubishi Electric 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 filed Critical Mitsubishi Electric Corp
Priority to JP856079A priority Critical patent/JPS55100811A/en
Publication of JPS55100811A publication Critical patent/JPS55100811A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16Control of thickness, width, diameter or other transverse dimensions
    • B21B37/22Lateral spread control; Width control, e.g. by edge rolling

Abstract

PURPOSE: To make possible the control of sheet breadth with high accuracy and fast response, by operating the corrective amount for the interstand tension required for absorbing the error of breadth on the exit side of the continuous rolling stand of the rolling mill, and by adjusting the rotational speed of the roll for controlling above stated interstand tension to the aim value.
CONSTITUTION: The roll gap of the edger in front of the stand 1a is operated from the aim sheet breadth and other rolling conditions, and is preset by the setters 4, 5. The tension operator 9 operates the tension T between the reducing rolls 1a, 1b, from the rolling load F detected by the load cell 7, the rotational speed N of the motor 8, and the driving current I. On the other hand, the breadth deviation operator 6 operates the difference ΔW between the detected breadth W and the reference breadth W*; then, the reference tension operator 10 operates the corrective amount ΔT for the tension, from these values and above stated tension T, according to the formula. This ΔT is inputted to the rotational speed operator 11, which then operates the corrective amount ΔN for the rotational speed. The rotational speed control unit 12 controls the motor 8 so as to make the corrective amount to be ΔN.
COPYRIGHT: (C)1980,JPO&Japio
JP856079A 1979-01-26 1979-01-26 Control unit for sheet breadth Pending JPS55100811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP856079A JPS55100811A (en) 1979-01-26 1979-01-26 Control unit for sheet breadth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP856079A JPS55100811A (en) 1979-01-26 1979-01-26 Control unit for sheet breadth

Publications (1)

Publication Number Publication Date
JPS55100811A true JPS55100811A (en) 1980-08-01

Family

ID=11696471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP856079A Pending JPS55100811A (en) 1979-01-26 1979-01-26 Control unit for sheet breadth

Country Status (1)

Country Link
JP (1) JPS55100811A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150609A (en) * 1983-02-17 1984-08-28 Toshiba Corp Sheet width controlling device in hot rolling installation
JPS59156512A (en) * 1983-02-23 1984-09-05 Kawasaki Steel Corp Controlling method of width in hot strip rolling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150609A (en) * 1983-02-17 1984-08-28 Toshiba Corp Sheet width controlling device in hot rolling installation
JPH0472606B2 (en) * 1983-02-17 1992-11-18 Tokyo Shibaura Electric Co
JPS59156512A (en) * 1983-02-23 1984-09-05 Kawasaki Steel Corp Controlling method of width in hot strip rolling

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