CN202383530U - Vision-based automatic control system of liquid level of cast wheel - Google Patents
Vision-based automatic control system of liquid level of cast wheel Download PDFInfo
- Publication number
- CN202383530U CN202383530U CN 201120520374 CN201120520374U CN202383530U CN 202383530 U CN202383530 U CN 202383530U CN 201120520374 CN201120520374 CN 201120520374 CN 201120520374 U CN201120520374 U CN 201120520374U CN 202383530 U CN202383530 U CN 202383530U
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- cast wheel
- automatic control
- vision
- liquid level
- electrically connected
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model relates to a vision-based automatic control system of the liquid level of a cast wheel. The vision-based automatic control system comprises a tundish, a pouring nozzle and the cast wheel, wherein the pouring nozzle is arranged below the tundish, and the cast wheel is arranged right below the pouring nozzle. The vision-based automatic control system is characterized in that a stopper is vertically and movably arranged at the pouring nozzle of the tundish, and the stopper is driven by a servo motor; an information acquisition device is used for picking up and continuously storing digital information of a liquid level image through shooting the liquid level of a cast cavity of the cast wheel; an image processor for generating liquid level difference data is electrically connected with the signal acquisition device and is also electrically connected with a programmable controller for generating analog quantity signals; the programmable controller is further electrically connected with a drive frequency converter; and the drive frequency converter is further electrically connected with the servo motor. The vision-based automatic control system has the advantages of realizing automatic control, greatly reducing the operation intensity of operation personnel and thoroughly improving the working environment.
Description
Technical field
The utility model relates to a kind of cast wheel automatic control of liquid system based on vision, is applied to the automatic control of liquid system of cast wheel groove of the high-temperature metal liquid of the casting machine in the nonferrous smelting technical field.
Background technology
In the production line of continuous casting and rolling, copper liquid casting cast wheel plays important effect, and qualified copper water flows to tundish by refining furnace, casts through cast wheel again.
When the liquid level of cast wheel groove is on the low side, may causes the casting machine chilled water to get into mold cavity, thereby blast danger; And when the liquid level of cast wheel groove was too high, can cause casting chamber bucket water overflowed, and produced very big negative effect to producing.
Simultaneously, under the unsettled situation of cast wheel groove liquid level, also can cause copper base inhomogeneous cooling even, and then cause a series of technology in back all to be affected.
Therefore, the automatic quick control of cast wheel groove liquid level horizontal stable seems particularly important.
In the prior art, the control device of cast wheel liquid level mainly contains two kinds: radioactive source level detection control system; Detect control system with ball float level controller.Wherein, there is the situation that operating personnel's personal safety harm and liquid level are lost easily in the radioactive source fluid level control system, and there is the situation that is not easy to realize automatic control because of the liquid fluctuating situation greatly in ball float level controller control.
Therefore, the cast wheel grasshopper according to prior art is not easy to realize automatic control, and operating personnel's manipulation strength is big, and working environment is also relatively poor.
Summary of the invention
The utility model provides a kind of cast wheel automatic control of liquid system based on vision, and it realizes control automatically easily, has reduced operating personnel's manipulation strength significantly, has thoroughly improved working environment.
For this reason, the utility model provides a kind of cast wheel automatic control of liquid system based on vision, and it comprises: tundish, pouring mouth and cast wheel; Said pouring mouth is arranged at the below of said tundish; And said cast wheel be arranged at said pouring mouth under, it is characterized in that
At the said pouring mouth place of said tundish, but vertical moving stopper is set, said stopper is driven by servomotor;
Said cast wheel automatic control of liquid system based on vision also comprises signal pickup assembly, image processor, logic controller and drive variable frequency device,
Said signal pickup assembly picks up and stores continuous liquid level image digitization information through the casting chamber liquid level of taking cast wheel;
The said image processor that produces the liquid level difference data is electrically connected with said signal pickup assembly on the one hand, is electrically connected with the logic controller that produces analog signals on the one hand in addition;
Said logic controller further is electrically connected with said drive variable frequency device; And
Said drive variable frequency device further is electrically connected with said servomotor.
Preferably, said signal pickup assembly is a ccd video camera.
Preferably, said image processor is NI1456 VSC 2.
Preferably, said logic controller is PLC.
According to utility model, obviously improved operating personnel's operating environment, change original behaviour manually and be present automatic control, also improved the quality of copper base greatly, for milling train operation at the back provides good assurance.
Description of drawings
Fig. 1 is according to the synoptic diagram based on the cast wheel automatic control of liquid system of vision of the utility model.
Embodiment
According to the utility model, as shown in Figure 1, adopt ccd video camera 1 to take the casting chamber liquid level of cast wheel 9, with the horizontal liquid level of copper liquid in the casting chamber of detecting cast wheel 9.
This ccd video camera 1 obtains continuous images numerical information, and sends to NI1456 VSC image processor 2.
Image processor 2 can be NI1456 VSC, and it is input to programmable logic controller (PLC) 3 (PLC, Programmable Logic Controller) to this liquid level difference again according to a little calculating liquid level difference (absolute is perhaps relative) with reference to being provided with.
The PID that this PLC Programmable Logic Controller 3 carries out a closed loop calculates (PID, Proportion Integration Differentiation), and to produce an analog signals, this signal is directly exported to frequency converter or driver 4.
Drive servomotor 5 by frequency converter 4 again, thereby drive stopper 6, with the opening of the pouring mouth 8 of control tundish 7, thereby control copper liquid is controlled the height of the casting chamber liquid level of cast wheel 9 thus from the flow size in the casting chamber of tundish 7 to cast wheel 9.
In a word; The controlling schemes of the utility model is: the liquid level data of camera 1 collection cast wheel 9 → through pouring mouth 8 → copper flow that video image processor 2 → programmable logic controller (PLC) (PLC) → drive variable frequency device 4 → servomotor 5 → stopper 6 → tundish 7 is given in network communication, finally realize the automatic control of liquid level.
Claims (4)
1. cast wheel automatic control of liquid system based on vision, it comprises: tundish, pouring mouth and cast wheel, said pouring mouth is arranged at the below of said tundish, and said cast wheel be arranged at said pouring mouth under, it is characterized in that,
Said pouring mouth place at said tundish establishes by vertically moving stopper, and said stopper is driven by servomotor;
Said cast wheel automatic control of liquid system based on vision also comprises signal pickup assembly, image processor, logic controller and drive variable frequency device,
Said signal pickup assembly picks up and stores continuous liquid level image digitization information through the casting chamber liquid level of taking cast wheel;
The said image processor that produces the liquid level difference data is electrically connected with said signal pickup assembly on the one hand, is electrically connected with the logic controller that produces analog signals on the one hand in addition;
Said logic controller further is electrically connected with said drive variable frequency device; And
Said drive variable frequency device further is electrically connected with said servomotor.
2. the cast wheel automatic control of liquid system based on vision as claimed in claim 1 is characterized in that said signal pickup assembly is a ccd video camera.
3. the cast wheel automatic control of liquid system based on vision as claimed in claim 1 is characterized in that said image processor is NI1456VSC 2.
4. the cast wheel automatic control of liquid system based on vision as claimed in claim 1 is characterized in that said logic controller is PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120520374 CN202383530U (en) | 2011-12-13 | 2011-12-13 | Vision-based automatic control system of liquid level of cast wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120520374 CN202383530U (en) | 2011-12-13 | 2011-12-13 | Vision-based automatic control system of liquid level of cast wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202383530U true CN202383530U (en) | 2012-08-15 |
Family
ID=46632022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120520374 Expired - Fee Related CN202383530U (en) | 2011-12-13 | 2011-12-13 | Vision-based automatic control system of liquid level of cast wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202383530U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566608A (en) * | 2011-12-13 | 2012-07-11 | 江西稀有稀土金属钨业集团有限公司 | Vision-based system and method for automatically controlling liquid level of cast wheel |
| CN103744442A (en) * | 2014-01-15 | 2014-04-23 | 上海电缆研究所 | Automatic liquid level control system for continuous casting machine section and control method thereof |
-
2011
- 2011-12-13 CN CN 201120520374 patent/CN202383530U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566608A (en) * | 2011-12-13 | 2012-07-11 | 江西稀有稀土金属钨业集团有限公司 | Vision-based system and method for automatically controlling liquid level of cast wheel |
| CN103744442A (en) * | 2014-01-15 | 2014-04-23 | 上海电缆研究所 | Automatic liquid level control system for continuous casting machine section and control method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20171213 |