JPS5577918A - Method and apparatus for controlling sheet crown including differential speed mill - Google Patents

Method and apparatus for controlling sheet crown including differential speed mill

Info

Publication number
JPS5577918A
JPS5577918A JP15231778A JP15231778A JPS5577918A JP S5577918 A JPS5577918 A JP S5577918A JP 15231778 A JP15231778 A JP 15231778A JP 15231778 A JP15231778 A JP 15231778A JP S5577918 A JPS5577918 A JP S5577918A
Authority
JP
Japan
Prior art keywords
speed
signal
sheet crown
unit
inputted
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
JP15231778A
Other languages
Japanese (ja)
Other versions
JPS5939203B2 (en
Inventor
Kiyoshi Kizaki
Tsutomu Hara
Norio Iwanami
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
Priority to JP53152317A priority Critical patent/JPS5939203B2/en
Publication of JPS5577918A publication Critical patent/JPS5577918A/en
Publication of JPS5939203B2 publication Critical patent/JPS5939203B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To control the sheet crown in a wide range without changing the draft percentage, by controlling the bending of the double chock work roll, while carrying out the differential speed rolling with the upper and lower work rolls rotating at different peripheral speeds.
CONSTITUTION: The upper work roll 1 is driven with the peripheral speed V1 by the motor 8 being controlled by the upper roll speed controller 7; the lower work roll 2 is driven at the peripheral speed V0 slower than V1 by the motor 8' controlled by the lower roll speed controller 7'. The set points for speeds of the speed controllers 7, 7', are correctively controlled depending on the signal given by the arithmetic control unit 9. The signal from the load cell 10 is inputted to the unit 9, and the signal from the detector for detecting the sheet crown and sheet shape on the exit side of the stand is also inputted to the unit 9 through the amplifier 11, besides, the set signal from the setter 12 is also inputted to the unit 9. If the change in the sheet crown is detected, the arithmetic control unit 9 sends the correction signal to the speed controllers 7, 7', in order to correct the peripheral speed ratio between rolls 1, 2, and also, sends the correction signal to the pressure controller 13 for correcting the bender.
COPYRIGHT: (C)1980,JPO&Japio
JP53152317A 1978-12-08 1978-12-08 Plate crown control method and device including variable speed rolling mill Expired JPS5939203B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53152317A JPS5939203B2 (en) 1978-12-08 1978-12-08 Plate crown control method and device including variable speed rolling mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53152317A JPS5939203B2 (en) 1978-12-08 1978-12-08 Plate crown control method and device including variable speed rolling mill

Publications (2)

Publication Number Publication Date
JPS5577918A true JPS5577918A (en) 1980-06-12
JPS5939203B2 JPS5939203B2 (en) 1984-09-21

Family

ID=15537873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53152317A Expired JPS5939203B2 (en) 1978-12-08 1978-12-08 Plate crown control method and device including variable speed rolling mill

Country Status (1)

Country Link
JP (1) JPS5939203B2 (en)

Also Published As

Publication number Publication date
JPS5939203B2 (en) 1984-09-21

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