GB1479668A - Rolling mill control system - Google Patents

Rolling mill control system

Info

Publication number
GB1479668A
GB1479668A GB28689/74A GB2868974A GB1479668A GB 1479668 A GB1479668 A GB 1479668A GB 28689/74 A GB28689/74 A GB 28689/74A GB 2868974 A GB2868974 A GB 2868974A GB 1479668 A GB1479668 A GB 1479668A
Authority
GB
United Kingdom
Prior art keywords
rolls
output
unit
signals
eccentricity
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.)
Expired
Application number
GB28689/74A
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Publication of GB1479668A publication Critical patent/GB1479668A/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

Landscapes

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

Abstract

1479668 Automatic control of rolling mills ISHIKAWAJIMA-HARIMA JUKOGYO KK 27 June 1974 [27 June 1973] 28689/74 Heading G3R The system for adjusting the gap of a rolling mill to compensate for the magnitude and angular position of eccentricity of the rolls is modified to allow for the effect of slip between the upper and lower rolls. Slip is determined in an arithmetic unit 9 from the difference between counters 5, 6 of pulses from generators 3, 4 coupled to upper and lower back-up rolls 1, 2 and is used to correct, at 25, the output of an arithmetic unit 22 according to given mathematical formulae. The unit 22 solves two equations relating the magnitude of roll pressure variations, measured at 10, with the sine and cosine of the instantaneous angle of the upper roll 1 relative to a datum. These values are produced once per revolution in a first unit 20 and are averaged over several revolutions at 22, provided a gate 21 is open due to the pressure being such as to indicate the presence of metal between the rolls. Units 20, 22 operate digitally on signals obtained by rapid sampling of the analogue output of pressure transducer 10. The output of 25 is connected to a computer 27 which calculates the positonal adjustments necessary to compensate for eccentricity, the computer signals being converted to analogue form at 16 for addition to actual and desired position signals in a hydraulic positioning servosystem 11 ... 15.
GB28689/74A 1973-06-27 1974-06-27 Rolling mill control system Expired GB1479668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48071798A JPS5234030B2 (en) 1973-06-27 1973-06-27

Publications (1)

Publication Number Publication Date
GB1479668A true GB1479668A (en) 1977-07-13

Family

ID=13470927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28689/74A Expired GB1479668A (en) 1973-06-27 1974-06-27 Rolling mill control system

Country Status (4)

Country Link
US (1) US3920968A (en)
JP (1) JPS5234030B2 (en)
DE (1) DE2430089C3 (en)
GB (1) GB1479668A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130748A (en) * 1982-10-27 1984-06-06 Gen Electric Method of improved gage control in metal rolling mills

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5327732B2 (en) * 1971-12-16 1978-08-10
US3859117A (en) * 1972-03-07 1975-01-07 Michael Erchak Coated glass container
JPS5312932B2 (en) * 1972-07-06 1978-05-06
US3889030A (en) * 1972-08-22 1975-06-10 Dart Ind Inc Method of coating glass article and improved coated glassware product
JPS5319011B2 (en) * 1972-11-25 1978-06-19
JPS5323849B2 (en) * 1973-02-13 1978-07-17
JPS49314A (en) * 1973-03-07 1974-01-05
JPS5411813B2 (en) * 1974-03-28 1979-05-17
JPS5272716A (en) * 1975-12-16 1977-06-17 Azekami Garasu Kougiyou Kk Nonnfogging glass
JPS5328545A (en) * 1976-08-31 1978-03-16 Ishikawajima Harima Heavy Ind Controlling of roll eccentric affection
US4126027A (en) * 1977-06-03 1978-11-21 Westinghouse Electric Corp. Method and apparatus for eccentricity correction in a rolling mill
JPS6054802B2 (en) * 1979-02-28 1985-12-02 三菱重工業株式会社 Roll eccentricity control method for rolling mill
JPS56119613A (en) * 1980-02-22 1981-09-19 Toshiba Corp Thickness detector for run-out side of rolling mill
JPS58151350A (en) * 1982-03-04 1983-09-08 Central Glass Co Ltd Scattering preventing glass body
JPS5992113A (en) * 1982-11-15 1984-05-28 Nisshin Steel Co Ltd Control device of roll eccentricity
KR900000780B1 (en) * 1983-09-08 1990-02-16 존 리세이트(오스트레일리아) 리미팃드 Method and apparatus for controlling the thickness of a strips from a rolling mill
CA1284681C (en) * 1986-07-09 1991-06-04 Alcan International Limited Methods and apparatus for the detection and correction of roll eccentricity in rolling mills
DE59501395D1 (en) * 1994-03-29 1998-03-12 Siemens Ag Method for suppressing the influence of roll eccentricities on the control of the rolling stock thickness in a roll stand
DE102007003243A1 (en) * 2007-01-23 2008-07-31 Siemens Ag Control arrangement for a roll stand and herewith corresponding objects
EP2014380A1 (en) * 2007-06-11 2009-01-14 ArcelorMittal France Method of rolling a band of metal with adjustment of its lateral position on the one hand and adapted rolling mill
CN113083907B (en) * 2021-03-29 2022-07-19 广西北港不锈钢有限公司 Method for calculating eccentric rolling line of stainless steel plate

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE592289A (en) * 1959-06-27
NL278112A (en) * 1961-05-08
GB1131137A (en) * 1966-05-06 1968-10-23 Davy And United Instr Ltd Rolling mill gauge control systems
GB1204335A (en) * 1967-11-21 1970-09-03 Davy & United Eng Co Ltd Rolling mills
US3580022A (en) * 1968-11-12 1971-05-25 Youngstown Sheet And Tube Co Rolling mill including gauge control
JPS4937337B1 (en) * 1970-03-20 1974-10-08

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130748A (en) * 1982-10-27 1984-06-06 Gen Electric Method of improved gage control in metal rolling mills
US4521859A (en) * 1982-10-27 1985-06-04 General Electric Company Method of improved gage control in metal rolling mills

Also Published As

Publication number Publication date
JPS5020964A (en) 1975-03-05
DE2430089B2 (en) 1977-09-08
JPS5234030B2 (en) 1977-09-01
DE2430089C3 (en) 1978-05-03
DE2430089A1 (en) 1975-01-09
US3920968A (en) 1975-11-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee