JPS5477263A - Looper tension detector - Google Patents

Looper tension detector

Info

Publication number
JPS5477263A
JPS5477263A JP14390477A JP14390477A JPS5477263A JP S5477263 A JPS5477263 A JP S5477263A JP 14390477 A JP14390477 A JP 14390477A JP 14390477 A JP14390477 A JP 14390477A JP S5477263 A JPS5477263 A JP S5477263A
Authority
JP
Japan
Prior art keywords
tension
rolling
strip
driving shaft
measuring instruments
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
JP14390477A
Other languages
Japanese (ja)
Other versions
JPS551130B2 (en
Inventor
Tomoaki Kimura
Haruo Kinoshita
Takeshi Ichiyanagi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14390477A priority Critical patent/JPS5477263A/en
Publication of JPS5477263A publication Critical patent/JPS5477263A/en
Publication of JPS551130B2 publication Critical patent/JPS551130B2/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)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE:A driving shaft is extended out a belt-passing rolling-line. On the extended shaft, measuring instruments for torque and oscillating angle are installed, thereby effecting a high-precision detection of a stand-to-stand tension at a far location from the rolling-line. CONSTITUTION:A driving shaft 13 is extended from a rolling line where a strip 9 passes between rolling mills 1 and 2. On the driving shaft 13, measuring instruments 14, 18, for torque 14 and oscillating angle 18 are installed. Outputs of the measuring instruments are inputted into a tension-calculator 20 and converted into a tension value. A tension-setter 21 stores a defined strip tension value preliminarily calculated from rolling speed, strip temperature, reductions of both stands and the like. Both outputs from the tension-calculator 20 and tension setter 22 are inputted into a comparator 22. If difference is found, a servo-valve 23 actuates an oil pressure cylinder 8 to effect vertical motion of roller 3, through a lever 6, shafts 13, 16 and a lever 4, so as to establish a predetermined value of the strip 9 tension.
JP14390477A 1977-12-02 1977-12-02 Looper tension detector Granted JPS5477263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14390477A JPS5477263A (en) 1977-12-02 1977-12-02 Looper tension detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14390477A JPS5477263A (en) 1977-12-02 1977-12-02 Looper tension detector

Publications (2)

Publication Number Publication Date
JPS5477263A true JPS5477263A (en) 1979-06-20
JPS551130B2 JPS551130B2 (en) 1980-01-11

Family

ID=15349767

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14390477A Granted JPS5477263A (en) 1977-12-02 1977-12-02 Looper tension detector

Country Status (1)

Country Link
JP (1) JPS5477263A (en)

Also Published As

Publication number Publication date
JPS551130B2 (en) 1980-01-11

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