JPS57209710A - Plate thickness controlling method - Google Patents

Plate thickness controlling method

Info

Publication number
JPS57209710A
JPS57209710A JP56093512A JP9351281A JPS57209710A JP S57209710 A JPS57209710 A JP S57209710A JP 56093512 A JP56093512 A JP 56093512A JP 9351281 A JP9351281 A JP 9351281A JP S57209710 A JPS57209710 A JP S57209710A
Authority
JP
Japan
Prior art keywords
distance
roll
chocks
detected
plate thickness
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
JP56093512A
Other languages
Japanese (ja)
Other versions
JPS6241805B2 (en
Inventor
Tamao Yokoi
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP56093512A priority Critical patent/JPS6241805B2/ja
Publication of JPS57209710A publication Critical patent/JPS57209710A/en
Publication of JPS6241805B2 publication Critical patent/JPS6241805B2/ja
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/12—End of product
    • B21B2273/14—Front end or leading end

Abstract

PURPOSE:To reduce influences of roll eccentricity on plate thickness as far as possible and to improve accuracy of plate thickness control remarkably by detecting change of distance between roll chocks and thereby detecting change of roll gap caused by roll eccentricity exactly. CONSTITUTION:A preset signal for setting the distance between roll chocks 5u, 5d to an initial distance So which is inputted to a control section 10 beforehand is sent from the control section 10 to a motor 8. The roll gap is made to coincide with the distance So by adjusting a screw 3 using the motor 8. When a load cell 9 detects that the top part of a strip 7 to be shifted is caught between work rolls 1u, 1d, the distance S1 between chocks 5u, 5d is detected plural times, and the average value is stored as a reference value. Thereafter, the distance Si betwen chocks 5u, 5d is detected at specified timing, and difference epsiloni between the detected value Si and reference value S1 is calculated succesively. The screw 3 is raised or lowered to requlate to epsilon=0, and when it is detected by a signal from the cell 9 that the strip has passed the rolling mill, controlling is terminated.
JP56093512A 1981-06-16 1981-06-16 Expired JPS6241805B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56093512A JPS6241805B2 (en) 1981-06-16 1981-06-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56093512A JPS6241805B2 (en) 1981-06-16 1981-06-16

Publications (2)

Publication Number Publication Date
JPS57209710A true JPS57209710A (en) 1982-12-23
JPS6241805B2 JPS6241805B2 (en) 1987-09-04

Family

ID=14084396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56093512A Expired JPS6241805B2 (en) 1981-06-16 1981-06-16

Country Status (1)

Country Link
JP (1) JPS6241805B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0698428A1 (en) * 1994-07-08 1996-02-28 Siemens Aktiengesellschaft Device for detecting the roll gap between two working rolls of a rolling stand
US5533371A (en) * 1991-02-01 1996-07-09 Lauener Engineering, Ltd. Measurement device for roll gap control and process for its operation
WO2003053604A1 (en) * 2001-12-12 2003-07-03 Sms Demag Aktiengesellschaft Device for measuring the roll gap between the working rollers of a cold or warm rolling stand

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56144812A (en) * 1980-04-10 1981-11-11 Kawasaki Steel Corp Controlling method for roll gap of upper and lower work roll of hot rolling mill and measuring device for opening of roll chock

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56144812A (en) * 1980-04-10 1981-11-11 Kawasaki Steel Corp Controlling method for roll gap of upper and lower work roll of hot rolling mill and measuring device for opening of roll chock

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5533371A (en) * 1991-02-01 1996-07-09 Lauener Engineering, Ltd. Measurement device for roll gap control and process for its operation
EP0698428A1 (en) * 1994-07-08 1996-02-28 Siemens Aktiengesellschaft Device for detecting the roll gap between two working rolls of a rolling stand
WO2003053604A1 (en) * 2001-12-12 2003-07-03 Sms Demag Aktiengesellschaft Device for measuring the roll gap between the working rollers of a cold or warm rolling stand
US7174758B2 (en) 2001-12-12 2007-02-13 Sms Demag Aktiengesellschaft Device for measuring the roll gap between the working rollers of a cold or warm rolling stand
CN1313220C (en) * 2001-12-12 2007-05-02 Sms迪马格股份公司 Device for measuring the roll gap between the working rollers of a cold or warm rolling stand

Also Published As

Publication number Publication date
JPS6241805B2 (en) 1987-09-04

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