JPS56144811A - Velocity controller of continuous rolling mill - Google Patents
Velocity controller of continuous rolling millInfo
- Publication number
- JPS56144811A JPS56144811A JP4824080A JP4824080A JPS56144811A JP S56144811 A JPS56144811 A JP S56144811A JP 4824080 A JP4824080 A JP 4824080A JP 4824080 A JP4824080 A JP 4824080A JP S56144811 A JPS56144811 A JP S56144811A
- Authority
- JP
- Japan
- Prior art keywords
- block
- signal
- electric current
- value
- supplied
- 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
Links
Landscapes
- Control Of Metal Rolling (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
PURPOSE: To control the electric current to be supplied to the driving motor according to the prescribed relation between the deviation of motor's electric current from the reference value and the velocity changing rate, and to keep the rolling stands in good cooperation, by comparing the value of electric current of each motor driving the rolling stand with the previously set reference value.
CONSTITUTION: The block 14 compares the value of electric currents I1, I2, I3 to be supplied by each of driving circuits 4-1, 4-2 and 4-3 respectively to motors 3-1, 3-2 and 3-3, with the reference values UL1, UL2 and UL3. If the supplied electric current exceeds the reference value, a signal 14a is given to the block 15 by the block 14. Thereupon, the block 15 computes the rate of velocity increase ΔX0 per unit time ΔT seconds starting from the time Ts; if the said signal 14a is not produced from the block 14, the block 15 produces the signal ΔX0 as it is, and if the signal 14a is being produced, the block 15 makes a subtraction ΔX=ΔX0-ΔXd (wherein ΔXd is the preset value), and produces the signal ΔX. Then, the reference velocity signals V01, V02 and V03 are changed by the signal ΔX, and they are controlled so as to be the final aimed values respectively at the time Ts3.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4824080A JPS56144811A (en) | 1980-04-11 | 1980-04-11 | Velocity controller of continuous rolling mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4824080A JPS56144811A (en) | 1980-04-11 | 1980-04-11 | Velocity controller of continuous rolling mill |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56144811A true JPS56144811A (en) | 1981-11-11 |
Family
ID=12797912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4824080A Pending JPS56144811A (en) | 1980-04-11 | 1980-04-11 | Velocity controller of continuous rolling mill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56144811A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62267007A (en) * | 1986-05-15 | 1987-11-19 | Kawasaki Steel Corp | Method for controlling color tone on front and rear surfaces of rolling material |
JP2012182901A (en) * | 2011-03-01 | 2012-09-20 | Toshiba Mitsubishi-Electric Industrial System Corp | Plant control apparatus and thick plate rolling system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53106661A (en) * | 1977-03-02 | 1978-09-16 | Toshiba Corp | Controller for continuous rolling mill |
JPS54155962A (en) * | 1978-05-30 | 1979-12-08 | Toshiba Corp | Loop controller for rolled material |
-
1980
- 1980-04-11 JP JP4824080A patent/JPS56144811A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53106661A (en) * | 1977-03-02 | 1978-09-16 | Toshiba Corp | Controller for continuous rolling mill |
JPS54155962A (en) * | 1978-05-30 | 1979-12-08 | Toshiba Corp | Loop controller for rolled material |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62267007A (en) * | 1986-05-15 | 1987-11-19 | Kawasaki Steel Corp | Method for controlling color tone on front and rear surfaces of rolling material |
JPH0445243B2 (en) * | 1986-05-15 | 1992-07-24 | Kawasaki Steel Co | |
JP2012182901A (en) * | 2011-03-01 | 2012-09-20 | Toshiba Mitsubishi-Electric Industrial System Corp | Plant control apparatus and thick plate rolling system |
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