JPS5522459A - Pair roll driving start control method of rolling mill - Google Patents
Pair roll driving start control method of rolling millInfo
- Publication number
- JPS5522459A JPS5522459A JP9539478A JP9539478A JPS5522459A JP S5522459 A JPS5522459 A JP S5522459A JP 9539478 A JP9539478 A JP 9539478A JP 9539478 A JP9539478 A JP 9539478A JP S5522459 A JPS5522459 A JP S5522459A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- synchronous motor
- voltage
- frequency converter
- started
- 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
Abstract
PURPOSE: To turn on power source after controlling of revolutions and synchronously drive pair rolls by low-frequency-starting the other of separate synchronous motors.
CONSTITUTION: The synchronous motor 11 of the lower roll is low-frequency- started by controlling a frequency converter 15. After the output frequency and voltage of the frequency converter 15 have coincided with the frequency and voltage of the power source, the output voltage of the frequency converter 15 is made once zero and the synchronous motor 11 of the lower roll is started. Next, the synchronous motor 10 of the upper roll is low-frequency-started and when its speed has become nearly 100%, the deviations between the relative angle positions of cross pins 6a, 7a are eliminated or kept within a permissible value by controlling the revolution of the synchronous motor 10 based on the detection signal of the deviations between the relative angle position of both cross pins 6a, l7a from relative angle deviation detecting device 14. Next, the voltage phase difference between the input and output sides of the frequency converter 15 is detected and the revolution of the synchronous motor 10 is controlled by this signal, whereby the voltage phase difference is eliminated and the upper and lower rolls 4, 5 are synchronously driven.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9539478A JPS5522459A (en) | 1978-08-07 | 1978-08-07 | Pair roll driving start control method of rolling mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9539478A JPS5522459A (en) | 1978-08-07 | 1978-08-07 | Pair roll driving start control method of rolling mill |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5522459A true JPS5522459A (en) | 1980-02-18 |
Family
ID=14136425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9539478A Pending JPS5522459A (en) | 1978-08-07 | 1978-08-07 | Pair roll driving start control method of rolling mill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5522459A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0691526A (en) * | 1992-09-14 | 1994-04-05 | Amitec Corp | Plate material work device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53114016A (en) * | 1977-03-17 | 1978-10-05 | Toshiba Corp | Starting controller for rolling mill sync. motor |
JPS53136615A (en) * | 1977-05-04 | 1978-11-29 | Toshiba Corp | Controller for synchronous motor used in driving rolling roll |
JPS53146113A (en) * | 1977-05-26 | 1978-12-19 | Toshiba Corp | Start controller for synchronous machine for driving roller for rolling |
-
1978
- 1978-08-07 JP JP9539478A patent/JPS5522459A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53114016A (en) * | 1977-03-17 | 1978-10-05 | Toshiba Corp | Starting controller for rolling mill sync. motor |
JPS53136615A (en) * | 1977-05-04 | 1978-11-29 | Toshiba Corp | Controller for synchronous motor used in driving rolling roll |
JPS53146113A (en) * | 1977-05-26 | 1978-12-19 | Toshiba Corp | Start controller for synchronous machine for driving roller for rolling |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0691526A (en) * | 1992-09-14 | 1994-04-05 | Amitec Corp | Plate material work device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57129198A (en) | Controlling method and device for ac motor | |
JPS5653591A (en) | Main shaft revolution control system | |
JPS55133837A (en) | Roll forming method of wheel rim for automobile | |
JPS5522459A (en) | Pair roll driving start control method of rolling mill | |
JPS555035A (en) | Brushless motor starting system | |
JPS5541154A (en) | Motor controller | |
JPS5592589A (en) | Controller for operation of induction motor | |
JPS5552854A (en) | Web controller | |
JPS53146113A (en) | Start controller for synchronous machine for driving roller for rolling | |
JPS55446A (en) | Material speed detector | |
JPS5564918A (en) | Method and apparatus for automatic thickness control | |
JPS5570409A (en) | Speed corrector | |
JPS54122657A (en) | Loop controller for rolled material | |
JPS5592595A (en) | Driving gear for synchronous motor | |
JPS5497562A (en) | Control of shape in rolling mill | |
JPS52106090A (en) | Rotary controller | |
SU500837A1 (en) | Driving speed control method pilgerstan | |
JPS5650720A (en) | Tension roller staightener | |
JPS5546897A (en) | Driving device for ac motor | |
JPS55149715A (en) | Method and apparatus for controlling continuous rolling mill | |
JPS54127087A (en) | Control device of pendulum type running shear | |
JPH0161029B2 (en) | ||
JPS54133463A (en) | Method and apparatus for shape control in differential- speed rolling | |
JPS5533832A (en) | Exciting method of synchronous motor for rolling | |
JPS53125952A (en) | Stop position control apparatus for end of roll shaft |