JPS56144811A - Velocity controller of continuous rolling mill - Google Patents

Velocity controller of continuous rolling mill

Info

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
Application number
JP4824080A
Other languages
Japanese (ja)
Inventor
Izuru Ogawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4824080A priority Critical patent/JPS56144811A/en
Publication of JPS56144811A publication Critical patent/JPS56144811A/en
Pending legal-status Critical Current

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
JP4824080A 1980-04-11 1980-04-11 Velocity controller of continuous rolling mill Pending JPS56144811A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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