JPS57100818A - Chattering detecting device for rolling mill - Google Patents

Chattering detecting device for rolling mill

Info

Publication number
JPS57100818A
JPS57100818A JP55175845A JP17584580A JPS57100818A JP S57100818 A JPS57100818 A JP S57100818A JP 55175845 A JP55175845 A JP 55175845A JP 17584580 A JP17584580 A JP 17584580A JP S57100818 A JPS57100818 A JP S57100818A
Authority
JP
Japan
Prior art keywords
chattering
rolling mill
inputted
output
range finder
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
JP55175845A
Other languages
Japanese (ja)
Inventor
Yukio Hamada
Hiroshi Sekine
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP55175845A priority Critical patent/JPS57100818A/en
Publication of JPS57100818A publication Critical patent/JPS57100818A/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
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/008—Monitoring or detecting vibration, chatter or chatter marks

Landscapes

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

Abstract

PURPOSE:To detect generation of chattering quickly and surely by providing a swirl type range finder that detects chattering between a pair of deflector rolls of the outlet side of a rolling mill. CONSTITUTION:When a strip 4 vibrates between a pair of deflector rolls of the outlet side of a rolling mill, the distance X between this and a swirl type range finder 5 fluctuates. The frequency and amplitude of vibration are detected by the range finder 5 and the output is amplified by a device 6, and inputted to a band pass filter 7. Here, band including specified frequency due to chattering and band width are set beforehand, and output of the filter 7 becomes only the specified frequency component and made to d.c. by a rectifier circuit 8, and inputted to a comparator circuit 9. A detected level signal (a) corrected by a level setting unit 11 basing on the tension, thickness and width of the strip is inputted here. The two signals are compared, and if the signal from the circuit 8 is higher, output is made to an alarm signal generation circuit 10.
JP55175845A 1980-12-15 1980-12-15 Chattering detecting device for rolling mill Pending JPS57100818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55175845A JPS57100818A (en) 1980-12-15 1980-12-15 Chattering detecting device for rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55175845A JPS57100818A (en) 1980-12-15 1980-12-15 Chattering detecting device for rolling mill

Publications (1)

Publication Number Publication Date
JPS57100818A true JPS57100818A (en) 1982-06-23

Family

ID=16003212

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55175845A Pending JPS57100818A (en) 1980-12-15 1980-12-15 Chattering detecting device for rolling mill

Country Status (1)

Country Link
JP (1) JPS57100818A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63101013A (en) * 1986-10-15 1988-05-06 Kawasaki Steel Corp Method and apparatus for detecting abnormal oscillation of cold rolling mill
JP2007111021A (en) * 2005-10-24 2007-05-10 Suzutec Co Ltd Seeding device for pot type nursery container and seeding method of pot type nursery container
CN108136459A (en) * 2015-09-23 2018-06-08 Sms集团有限公司 Rolling-mill housing, rolling equipment and the method for initiatively weakening the vibration in rolling-mill housing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63101013A (en) * 1986-10-15 1988-05-06 Kawasaki Steel Corp Method and apparatus for detecting abnormal oscillation of cold rolling mill
JPH0446650B2 (en) * 1986-10-15 1992-07-30 Kawasaki Steel Co
JP2007111021A (en) * 2005-10-24 2007-05-10 Suzutec Co Ltd Seeding device for pot type nursery container and seeding method of pot type nursery container
CN108136459A (en) * 2015-09-23 2018-06-08 Sms集团有限公司 Rolling-mill housing, rolling equipment and the method for initiatively weakening the vibration in rolling-mill housing
CN108136459B (en) * 2015-09-23 2021-06-18 Sms集团有限公司 Rolling stand, rolling installation and method for actively damping vibrations in a rolling stand

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