JPS5577918A - Method and apparatus for controlling sheet crown including differential speed mill - Google Patents
Method and apparatus for controlling sheet crown including differential speed millInfo
- 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
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
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) |
-
1978
- 1978-12-08 JP JP53152317A patent/JPS5939203B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5939203B2 (en) | 1984-09-21 |
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