JPS5686616A - Method and apparatus for automatic thickness control in rolling mill - Google Patents

Method and apparatus for automatic thickness control in rolling mill

Info

Publication number
JPS5686616A
JPS5686616A JP16385579A JP16385579A JPS5686616A JP S5686616 A JPS5686616 A JP S5686616A JP 16385579 A JP16385579 A JP 16385579A JP 16385579 A JP16385579 A JP 16385579A JP S5686616 A JPS5686616 A JP S5686616A
Authority
JP
Japan
Prior art keywords
deviation
thickness
deltax
inputted
signal
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
JP16385579A
Other languages
Japanese (ja)
Other versions
JPS6150049B2 (en
Inventor
Hitoshi Aizawa
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.)
JFE Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP16385579A priority Critical patent/JPS5686616A/en
Priority to US06/258,779 priority patent/US4428054A/en
Publication of JPS5686616A publication Critical patent/JPS5686616A/en
Publication of JPS6150049B2 publication Critical patent/JPS6150049B2/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
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/18—Automatic gauge control

Landscapes

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

Abstract

PURPOSE:To automatically control the thickness in order to improve thickness accuracy, responsibility, and safety, by controlling the thickness if the thickness deviation on the run-out side is larger than the presetted reference deviation, and by controlling the draft percentage if the former is smaller than the latter. CONSTITUTION:The length signal is produced from the pulse generator 10 for measuring the feed- in side length, and is inputted to each of the feed-in side length counters 11, 12, respectively for the thickness controller (AGC) and the draft percentage controller (ARC). The run-out side sheet length is detected by the pulse generator of the touch roll touching the deflector roll 42, and the length signal is inputted to the rolling reduction arithmetic circuit 70 through the run-out side length counters 21, 22, for AGC and ARC respectively; then, the output deviation signal DELTAx obtained from outputs of counters 21, 22, is produced from the circuit 70. If the deviation signal of the AGC output arithmetic circuit is larger than the presetted reference value of deviation, this deviation signal DELTAx is inputted to the hydraulic screw down type servo-mechanism 90; if the former is smaller than the latter, the deviation signal DELTAx of the ARC output arithmetic circuit is inputted to the mechchanism 90, and the electro-hydraulic servo-valve 91 controls the screw down motion of the hydraulic screw down cylinder 92 so as to make the deviation signal DELTAx always zero.
JP16385579A 1979-11-05 1979-12-17 Method and apparatus for automatic thickness control in rolling mill Granted JPS5686616A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP16385579A JPS5686616A (en) 1979-12-17 1979-12-17 Method and apparatus for automatic thickness control in rolling mill
US06/258,779 US4428054A (en) 1979-11-05 1981-04-29 Automatic control methods and devices for rolling hills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16385579A JPS5686616A (en) 1979-12-17 1979-12-17 Method and apparatus for automatic thickness control in rolling mill

Publications (2)

Publication Number Publication Date
JPS5686616A true JPS5686616A (en) 1981-07-14
JPS6150049B2 JPS6150049B2 (en) 1986-11-01

Family

ID=15782026

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16385579A Granted JPS5686616A (en) 1979-11-05 1979-12-17 Method and apparatus for automatic thickness control in rolling mill

Country Status (1)

Country Link
JP (1) JPS5686616A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018108599A (en) * 2017-01-05 2018-07-12 株式会社神戸製鋼所 Plate thickness control device of rolling machine and method thereof and rolling machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018108599A (en) * 2017-01-05 2018-07-12 株式会社神戸製鋼所 Plate thickness control device of rolling machine and method thereof and rolling machine

Also Published As

Publication number Publication date
JPS6150049B2 (en) 1986-11-01

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