JPS5785606A - Controlling device of plate bending in rolling mill - Google Patents

Controlling device of plate bending in rolling mill

Info

Publication number
JPS5785606A
JPS5785606A JP55159536A JP15953680A JPS5785606A JP S5785606 A JPS5785606 A JP S5785606A JP 55159536 A JP55159536 A JP 55159536A JP 15953680 A JP15953680 A JP 15953680A JP S5785606 A JPS5785606 A JP S5785606A
Authority
JP
Japan
Prior art keywords
bending
rolled stock
oil pressure
detecting
rolling mill
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.)
Pending
Application number
JP55159536A
Other languages
Japanese (ja)
Inventor
Toshiyuki Kajiwara
Yoshihiko Iida
Sunao Hashimoto
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 JP55159536A priority Critical patent/JPS5785606A/en
Publication of JPS5785606A publication Critical patent/JPS5785606A/en
Pending 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
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/06—Width

Abstract

PURPOSE:To enable highly accurate plate bending control by detecting bending by the detecting device for an optical width direction position and controlling rolling reduction and thereby ensuring detecting action. CONSTITUTION:A projector 13 is placed under a rolled stock 12 that came out from a rolling mill along the direction of width. The rolled stock 12 is exposed to light. The lengths (bd), (bw) of unsheltered parts at left and right of the rolled stock 12 are measured by photodetecting devices 14, 15. An arithmetic device 16 is connected to said device 14, 15 and calculation and discrimination are performed to determine the amount of bending and direction of generation of bending. An oil pressure pressing down controlling device 17 is connected to the arithmetic device 16. At the same time, an adjusting valve 18 and an oil pressure jack 19 are connected to the device 17 to form a servo circuit. Thus, the amount of bending of the rolled stock 12 is controlled to zero by adjusting the level of pressing down, feeding and removing oil to and from the oil pressure jack 19 in the direction of narrowing the gap between rolls that generated deviation of position of the center, and enlarging the gap of opposite side.
JP55159536A 1980-11-14 1980-11-14 Controlling device of plate bending in rolling mill Pending JPS5785606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55159536A JPS5785606A (en) 1980-11-14 1980-11-14 Controlling device of plate bending in rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159536A JPS5785606A (en) 1980-11-14 1980-11-14 Controlling device of plate bending in rolling mill

Publications (1)

Publication Number Publication Date
JPS5785606A true JPS5785606A (en) 1982-05-28

Family

ID=15695908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159536A Pending JPS5785606A (en) 1980-11-14 1980-11-14 Controlling device of plate bending in rolling mill

Country Status (1)

Country Link
JP (1) JPS5785606A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104206A (en) * 1982-12-07 1984-06-16 Sumitomo Metal Ind Ltd Control method of plate camber
JPS59127915A (en) * 1983-01-07 1984-07-23 Sumitomo Metal Ind Ltd Controlling method of plate camber
WO1998034741A1 (en) * 1997-02-05 1998-08-13 Siemens Aktiengesellschaft Method and device for setting the advancement of a rolled strip
KR20010061646A (en) * 1999-12-28 2001-07-07 이구택 An apparatus for controlling center of the strip in cold rolling process
WO2002066177A1 (en) * 2001-02-16 2002-08-29 Usinor Method and device for determining the shape, in a longitudinal direction, of a moving strip

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5575811A (en) * 1978-11-30 1980-06-07 Sumitomo Metal Ind Ltd Sheet camber controller for plate rolling
JPS56139229A (en) * 1980-04-01 1981-10-30 Kawasaki Steel Corp Method for measuring lateral bend of material to be rolled

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5575811A (en) * 1978-11-30 1980-06-07 Sumitomo Metal Ind Ltd Sheet camber controller for plate rolling
JPS56139229A (en) * 1980-04-01 1981-10-30 Kawasaki Steel Corp Method for measuring lateral bend of material to be rolled

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59104206A (en) * 1982-12-07 1984-06-16 Sumitomo Metal Ind Ltd Control method of plate camber
JPS59127915A (en) * 1983-01-07 1984-07-23 Sumitomo Metal Ind Ltd Controlling method of plate camber
WO1998034741A1 (en) * 1997-02-05 1998-08-13 Siemens Aktiengesellschaft Method and device for setting the advancement of a rolled strip
KR20010061646A (en) * 1999-12-28 2001-07-07 이구택 An apparatus for controlling center of the strip in cold rolling process
WO2002066177A1 (en) * 2001-02-16 2002-08-29 Usinor Method and device for determining the shape, in a longitudinal direction, of a moving strip

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