JPS55122619A - Automatic gauge control method - Google Patents

Automatic gauge control method

Info

Publication number
JPS55122619A
JPS55122619A JP3155179A JP3155179A JPS55122619A JP S55122619 A JPS55122619 A JP S55122619A JP 3155179 A JP3155179 A JP 3155179A JP 3155179 A JP3155179 A JP 3155179A JP S55122619 A JPS55122619 A JP S55122619A
Authority
JP
Japan
Prior art keywords
lock
circuit
rolling pressure
inputted
output
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
JP3155179A
Other languages
Japanese (ja)
Other versions
JPS602123B2 (en
Inventor
Shigenobu Yokoe
Taketo Okumura
Takashi Mikuriya
Haruo Senda
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 JP54031551A priority Critical patent/JPS602123B2/en
Publication of JPS55122619A publication Critical patent/JPS55122619A/en
Publication of JPS602123B2 publication Critical patent/JPS602123B2/en
Expired 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
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/66—Roll eccentricity compensation systems

Abstract

PURPOSE:To obtain always optimum lock-on position, by detecting the minimum gauge part in the vicinity of the end part of material being rolled, excluding the crop part, and setting this minimum gauge part as the lock-on position. CONSTITUTION:When a material being rolled 10 reaches a rolling stand biting of the material 10 into work rolls 12 is detected from rolling pressure F of the output of a load cell 16 in a comparator 18. As a result, timers 28, 30 start to operate, and the rolling pressure of the output of the load cell 16 is inputted into an A/D converter circuit 20 to be changed into a digital signal, which is inputted into a roll eccentricity removing circuit 22, so that the gauge fluctuation portion due to effects of roll eccentricity may be removed. The output from the circuit 22 is inputted into a differentiating circuit 24, and the crest and trough middle point of the rolling pressure fluctuations are detected. A lock-on position decision circuit 26 detects the first trough middle point of rolling pressure fluctuations from the polarity change after lapse of specified time (e.g. 0.1sec), and outputs this point as the lock-on signal.
JP54031551A 1979-03-16 1979-03-16 Automatic plate thickness control method Expired JPS602123B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54031551A JPS602123B2 (en) 1979-03-16 1979-03-16 Automatic plate thickness control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54031551A JPS602123B2 (en) 1979-03-16 1979-03-16 Automatic plate thickness control method

Publications (2)

Publication Number Publication Date
JPS55122619A true JPS55122619A (en) 1980-09-20
JPS602123B2 JPS602123B2 (en) 1985-01-19

Family

ID=12334316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54031551A Expired JPS602123B2 (en) 1979-03-16 1979-03-16 Automatic plate thickness control method

Country Status (1)

Country Link
JP (1) JPS602123B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58167014A (en) * 1982-03-27 1983-10-03 Sumitomo Metal Ind Ltd Controlling method of sheet thickness

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH053065Y2 (en) * 1986-12-18 1993-01-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58167014A (en) * 1982-03-27 1983-10-03 Sumitomo Metal Ind Ltd Controlling method of sheet thickness

Also Published As

Publication number Publication date
JPS602123B2 (en) 1985-01-19

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