JPS56102306A - Roll shift controller for rolling mill - Google Patents
Roll shift controller for rolling millInfo
- Publication number
- JPS56102306A JPS56102306A JP354580A JP354580A JPS56102306A JP S56102306 A JPS56102306 A JP S56102306A JP 354580 A JP354580 A JP 354580A JP 354580 A JP354580 A JP 354580A JP S56102306 A JPS56102306 A JP S56102306A
- Authority
- JP
- Japan
- Prior art keywords
- controller
- cylinders
- blind sector
- valves
- solenoid valves
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
- B21B2013/028—Sixto, six-high stands
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
PURPOSE:To provide the titled inexpensive controller possessing a long service life and an improved reliability, obtained by constituting so as to carry out a closed loop control by combining a solenoid valve and a check valve, and by providing a blind sector within the control loop. CONSTITUTION:When the signal is given by the controller 24 to the solenoid valves 9, 10, the pressurized oil delivered from the pump 11 flows into the cylinders 14, 15, through the solenoid valves 9, 10, and the pilot check valves 12, 13, so that the upper and the lower intermediate rolls 4, 5, are displaced by distances X1, X2, in respect of the reference length L. These distances of displacement are detected by the selsyn signal generators 16, 17, whose signals are sent to the controller 24 as the feedback; at the end of displacement, the oil path is closed, so that the cylinders 14, 15, are held at their present positions. A blind sector of specified plus an minus widths from the reference middle point, is provided within the above-mentioned controller 24; if the deviation of the roll position due to an oil leak of the pilot check valves 12, 13, is in the range of the blind sector, the positions of cylinders 14, 15, are held by only the check valves 12, 13; if the deviation extends out of the blind sector, the closed loop control is established, and the roll position is corrected by operating the solenoid valves 9, 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP354580A JPS56102306A (en) | 1980-01-18 | 1980-01-18 | Roll shift controller for rolling mill |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP354580A JPS56102306A (en) | 1980-01-18 | 1980-01-18 | Roll shift controller for rolling mill |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56102306A true JPS56102306A (en) | 1981-08-15 |
Family
ID=11560381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP354580A Pending JPS56102306A (en) | 1980-01-18 | 1980-01-18 | Roll shift controller for rolling mill |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56102306A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4913587A (en) * | 1972-05-31 | 1974-02-06 |
-
1980
- 1980-01-18 JP JP354580A patent/JPS56102306A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4913587A (en) * | 1972-05-31 | 1974-02-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1122880A (en) | Hydraulic control valve unit | |
GB1474421A (en) | Variable pressure hydraulic system | |
GB1517656A (en) | Fluid system of a work vehicle having fluid combining means and signal combining means | |
US5741002A (en) | Control valve | |
JPS56102306A (en) | Roll shift controller for rolling mill | |
GB1515586A (en) | Expansible tube fluid control valve | |
ES8205989A1 (en) | Solenoid valve | |
CA1037819A (en) | Differential pressure sensing valve | |
GB1374190A (en) | Fluid pressure operated remote control system | |
CN217570203U (en) | Automatic control device for strip steel guide opening degree | |
DE4236846C2 (en) | Controlled electro-hydraulic actuator for globe valves, especially steam valves of steam turbines | |
JPS57107486A (en) | Fluid control valve | |
DE1574352A1 (en) | Device for centering moving strips or tracks | |
FR2389021A1 (en) | Load handling equipment hydraulic control circuit - has safety valve with closing piston operated by two sensors in series | |
EP0128003A3 (en) | Two-stage directional control valves | |
JPS53131370A (en) | Oil pressure circuit | |
JPS57101155A (en) | Hydraulic control unit for automatic transmission | |
JPS5610801A (en) | Double-system confluence circuit device | |
JPS57176308A (en) | Operating control equipment for steam turbine | |
JPS571805A (en) | Composite valve | |
JPS54144579A (en) | Controller | |
JPS5659008A (en) | Pressure fluid circuit | |
JPS5714409A (en) | Control method for elongation percentage | |
JPS6479502A (en) | Level controller for drain tank of feedwater heater | |
JPS55130338A (en) | Roller leveler |