CN201257445Y - Band steel pinch-roll control device with position deviation eliminating function - Google Patents
Band steel pinch-roll control device with position deviation eliminating function Download PDFInfo
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- CN201257445Y CN201257445Y CNU2008201909327U CN200820190932U CN201257445Y CN 201257445 Y CN201257445 Y CN 201257445Y CN U2008201909327 U CNU2008201909327 U CN U2008201909327U CN 200820190932 U CN200820190932 U CN 200820190932U CN 201257445 Y CN201257445 Y CN 201257445Y
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- position deviation
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Abstract
The utility model relates to a strip steel pinch roll control device with the function of position deviation elimination, which comprises a position controller, a pressure controller, a selection functional module and a D/A converter module, wherein the position controller is connected with the selection functional module, the pressure controller is connected with the input end of the D/A converter module through the selection functional module, and the output of the D/A converter module is used as the control output. The strip steel pinch roll control device is characterized in that a position deviation controller is connected with the selection functional module. Because the position deviation controller is additionally arranged on the basis of the original control device, the utility model is enabled to have the following advantages that: 1. the position deviation is eliminated by adopting the electric control method, only an electric module is added, and part of source routine is modified, so the utility mode is simple and convenient; 2. position deviation at two sides can be controlled in the needed range by adjusting the magnification coefficient of a controller, so the utility model is flexible and convenient.
Description
Technical field
The invention belongs to a kind of electrical automatic control equipment, especially steel rolling mill has the band steel pinch roll control device that position deviation is eliminated function.
Background technology
In cold rolled strip steel production line now, the band steel pinch roll of some key position has automated location and detects and electric FEEDBACK CONTROL.But in actual production process, because a variety of causes, Position Control can produce deviation, causes various faults, and what influence was produced carries out smoothly.
Summary of the invention
The purpose of this utility model provide a kind of can eliminate pinch roll in actual motion because a variety of causes produces the band steel pinch roll control device that position deviation is eliminated function that has of both sides position deviation gradually, to overcome above-mentioned deficiency.
To achieve these goals, the utility model is by positioner, pressure controller, selection function module and D/A converter module constitute, wherein pressure controller comprises transmission side pressure controller and fore side pressure controller, the selection function module comprises transmission side selection function module and fore side selection function module, D/A converter module comprises transmission side D/A converter module and fore side D/A converter module, positioner links to each other with fore side selection function module with transmission side selection function module respectively, the transmission side pressure controller is connected with fore side D/A converter module input with the transmission side D/A converter module with fore side selection function module by transmission side selection function module respectively with the fore side pressure controller, the output of transmission side D/A converter module and fore side D/A converter module as transmission side control output and fore side control output, is characterized in: also have a position deviation controller to be connected with fore side selection function module with transmission side selection function module respectively respectively.
Above-mentioned position deviation controller links to each other with transmission side selection function module by adder, the position deviation controller joins by subtracter and fore side selection function module, simultaneously, positioner is connected with fore side selection function module with transmission side selection function module with subtracter by adder respectively.
Because the utility model is on the basis of former control device, increased the position deviation controller, made to the utlity model has following advantage: 1, take the electrical control means to eliminate position deviation, only relate to the increase electrical module, revise part source program, simple and convenient; 2, the both sides position deviation can be controlled in the required scope by the amplification coefficient of adjusting controller, flexible.
Description of drawings
Fig. 1 is band steel pinch roll structural representation.
Fig. 2 is existing band steel pinch roll control device theory diagram.
Fig. 3 is the utility model theory diagram.
Among the figure: the value of the value of PI-proportional integral, POS-positioner, the value of RF-pressure controller, DIFF-position deviation controller.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
In the structure of band steel pinch roll (Fig. 1), its top roll is fixed, and contacts with the strip, and guarantees the cornerite between band steel and template roller, always rotates when rolling, and speed is consistent with the speed of band steel.Lower roll is up and down movably, and fore side, transmission side are equipped with two hydraulic cylinders respectively, each cylinder is respectively adorned a position sensor, be used to measure the physical location of cylinder, a pressure sensor respectively is equipped with in plunger shaft, bar chamber, is used for calculating pressure, and lower roll does not contact with the strip when rolling, roller does not rotate, when bundling, lower roll rotates earlier, and accelerates to consistent with current band steel wire speed, holddown belt steel then rises, keep the band tension force of steel after shearing, and guiding takes the lead to enter wrapper, descend then and leave band steel 50mm, the roller stall is waited for next time and is sheared.
Can find out that from the block diagram (Fig. 2) of existing control device each controls transmission side and fore side with a single pressure controller, positioner is introduced (DS+OS)/2 mean value as feedback.When lower roll moved, these three controllers activated, and when pressure feedback was not more than 20KN, both sides output was the output of positioner, and when pressure during greater than 20KN, each side is output as each one-sided pressure controller output.
The utility model is on the basis of former control device, increased position deviation controller (Fig. 3), introduce DS-OS as feedback quantity, when pressure is not more than 20KN, the output that transmission is output as positioner adds the output of position deviation controller, and the output that fore side is output as positioner deducts the output of position deviation controller, when pressure during greater than 20KN, each side is output as the output of each one-sided pressure controller, and realizes position deviation elimination function.
The content that is not described in detail in this specification belongs to this area professional and technical personnel's known prior art.
Claims (2)
1, a kind of band steel pinch roll control device with position deviation elimination function, by positioner, pressure controller, selection function module and D/A converter module constitute, wherein pressure controller comprises transmission side pressure controller and fore side pressure controller, the selection function module comprises transmission side selection function module and fore side selection function module, D/A converter module comprises transmission side D/A converter module and fore side D/A converter module, positioner links to each other with fore side selection function module with transmission side selection function module respectively, the transmission side pressure controller is connected with fore side D/A converter module input with the transmission side D/A converter module with fore side selection function module by transmission side selection function module respectively with the fore side pressure controller, the output of transmission side D/A converter module and fore side D/A converter module as transmission side control output and fore side control output, is characterized in that: also have a position deviation controller to be connected with fore side selection function module with transmission side selection function module respectively respectively.
2, the band steel pinch roll control device with position deviation elimination function as claimed in claim 1, it is characterized in that: the position deviation controller links to each other with transmission side selection function module by adder, the position deviation controller joins by subtracter and fore side selection function module, simultaneously, positioner is connected with fore side selection function module with transmission side selection function module with subtracter by adder respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201909327U CN201257445Y (en) | 2008-09-19 | 2008-09-19 | Band steel pinch-roll control device with position deviation eliminating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201909327U CN201257445Y (en) | 2008-09-19 | 2008-09-19 | Band steel pinch-roll control device with position deviation eliminating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201257445Y true CN201257445Y (en) | 2009-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201909327U Expired - Fee Related CN201257445Y (en) | 2008-09-19 | 2008-09-19 | Band steel pinch-roll control device with position deviation eliminating function |
Country Status (1)
| Country | Link |
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| CN (1) | CN201257445Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921739A (en) * | 2012-11-12 | 2013-02-13 | 济钢集团有限公司 | Hot rolled strip steel coiling optimization method |
| CN103394516A (en) * | 2013-08-02 | 2013-11-20 | 河北省首钢迁安钢铁有限责任公司 | Coil box equipment double-interlock protection device and control method thereof |
| CN104942013A (en) * | 2014-03-24 | 2015-09-30 | 宝山钢铁股份有限公司 | Roller diameter online control method for finish rolling entry pinch roller of hot continuous rolling mill |
| CN104874611B (en) * | 2014-02-27 | 2017-02-15 | 宝山钢铁股份有限公司 | Method for controlling position of pinch roll at finish rolling inlet of hot continuous rolling device |
-
2008
- 2008-09-19 CN CNU2008201909327U patent/CN201257445Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921739A (en) * | 2012-11-12 | 2013-02-13 | 济钢集团有限公司 | Hot rolled strip steel coiling optimization method |
| CN103394516A (en) * | 2013-08-02 | 2013-11-20 | 河北省首钢迁安钢铁有限责任公司 | Coil box equipment double-interlock protection device and control method thereof |
| CN103394516B (en) * | 2013-08-02 | 2016-02-24 | 北京首钢股份有限公司 | A kind of coil box equipment double-interlock protection device and control method thereof |
| CN104874611B (en) * | 2014-02-27 | 2017-02-15 | 宝山钢铁股份有限公司 | Method for controlling position of pinch roll at finish rolling inlet of hot continuous rolling device |
| CN104942013A (en) * | 2014-03-24 | 2015-09-30 | 宝山钢铁股份有限公司 | Roller diameter online control method for finish rolling entry pinch roller of hot continuous rolling mill |
| CN104942013B (en) * | 2014-03-24 | 2017-06-06 | 宝山钢铁股份有限公司 | Continuous hot-rolling mill finish rolling entrance pinch roll roll neck On-Line Control Method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20140919 |
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| EXPY | Termination of patent right or utility model |