CN201278108Y - Rail pre-bending machine control apparatus - Google Patents
Rail pre-bending machine control apparatus Download PDFInfo
- Publication number
- CN201278108Y CN201278108Y CNU2008200154870U CN200820015487U CN201278108Y CN 201278108 Y CN201278108 Y CN 201278108Y CN U2008200154870 U CNU2008200154870 U CN U2008200154870U CN 200820015487 U CN200820015487 U CN 200820015487U CN 201278108 Y CN201278108 Y CN 201278108Y
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- Prior art keywords
- rail
- control device
- control
- bending
- prebending machine
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Abstract
The utility model relates to a control device for a rail pre-bending machine, which comprises a programmable logic controller, a frequency transformator, an encoder and a counter, wherein the four devices are connected in a closed loop, the frequency transformator is connected with a trolley motor of a pre-bending machine to control the trolley motor to walk, and the encoder is connected with a spindle head of the trolley motor of the pre-bending machine to acquire feedback signals. The control device also comprises a man-machine interface connected with the programmable logic controller to supply corresponding parameters required by pre-bending processing of various models of rails. A mathematical model in closed-loop control is established in a control program of the programmable logic controller, the mathematical model sectionally controls the walking speed of the trolley motor of the pre-bending machine through the setting of a three-section speed control model, and various pre-bending machines start and stop simultaneously according to set a pre-bending value. The control device adopts closed-loop control with precise positioning and control precision of +/-1 cm.
Description
Technical field
The utility model relates to a kind of control device, especially a kind of rail prebending machine control device.
Background technology
Rail is the vitals of track structure, is the staple product of safety of railway traffic, is that railway is realized at a high speed, the important foundation of heavy duty development.The further raising of the development need rail quality of transportation by railroad.Fast to high speed, heavy loading development, railway development and turn of the market require rail producer can provide series high-quality rail to railway, as used for high-speed railway rail, heavily loaded rail, passenger-cargo mixed transport line rail at present.And can only provide 900A and two kinds of lower products of quality requirements of U75V at present.
Usually the mill length of rail is 110m～120m, utilize hot saw to cut irregularity part end to end, on cold bed, carry out hot pre-bending PROCESS FOR TREATMENT, reduce the preceding flexibility of steel rail straightening, to reduce unrelieved stress and the surface damage that rail causes because of aligning, can also improve its lumber recovery simultaneously.The pre-bending Cooling Control Technology is the important step of decision rail quality, and the high precision high straightness of decision rail is so the pre-bending of rail processing is most important.
The utility model content
The purpose of this utility model is to provide a kind of rail prebending machine control device, improves the precision of rail pre-bending.
For achieving the above object, the utility model is achieved through the following technical solutions: a kind of rail prebending machine control device, comprise programmable logic controller (PLC), frequency converter, scrambler, counter, four closed loops connect, and wherein frequency converter is connected control prebending machine vehicle motor and walks with the prebending machine vehicle motor, and scrambler is connected the acquisition feedback signal with prebending machine vehicle motor spindle nose.The utility model rail prebending machine control device also comprises man-machine interface, and being connected with programmable logic controller (PLC) provides the pre-bending of the rail of various models to handle required relevant parameter.
In the control program of programmable logic controller (PLC), establish the mathematical model of a position closed loop control, setting segmentation control prebending machine carriage walking speed by three sections speed control models, each prebending machine starts simultaneously simultaneously according to the pre-bending value of setting and stops, the control of employing position closed loop, the location is accurate, and control accuracy can reach ± 1cm.
Description of drawings
Artwork when Fig. 1 is used for the utility model embodiment.
Embodiment
The utility model embodiment is to carry out being provided with on the stepping beam type cold bed of rail prebending machine, and this cold bed goes for various types of rail products and evenly cools off, and flexibility is little, reduce steel surface scratches, and reduces the rail unrelieved stress;
See also shown in Figure 1, in the utility model embodiment, programmable logic controller (PLC) adopts the 416-2DP of Siemens S7-400 series to carry out computing and carries out, establish the mathematical model of a position closed loop control in its control program, by the setting segmentation control carriage walking speed of three sections speed control models.Frequency converter adopts Powerflex700, and control prebending machine vehicle motor is walked.Counter adopts FM450-1 feedback pre-bending actual value to give programmable logic controller (PLC), and man-machine interface adopts SIAMTIC MP 370 to set the pre-bending process value.
Finish with various model rail corresponding parameter 370 li of SIMATIC MP, the operator only need therefrom choose the rail model of present production when producing, the running stroke of prebending machine dolly just is set in the programmable logic controller (PLC), press the pre-bending automatic button, prebending machine is finished an automatic course of work, and each prebending machine starts simultaneously simultaneously according to the pre-bending value of setting and stops.Only be provided with one near switch in start bit in automatic course of work of prebending machine, remaining action all is to control through the programmable logic controller (PLC) computation model by the encoder feedback of installing at motor shaft head to finish.The thermogravimetric rail is released certain radian, stepping cooling automatically on the automatic step rate of cold bed, cooled heavy rail is more straight, by avoiding being subjected to the influence of big internal stress behind the straightener, improves the quality of heavy rail.
In the control program of programmable logic controller (PLC), establish the mathematical model of a position closed loop control, setting segmentation control prebending machine carriage walking speed by three sections speed control models, each prebending machine starts simultaneously simultaneously according to the pre-bending value of setting and stops, the control of employing position closed loop, the location is accurate, and control accuracy can reach ± 1cm.
Claims (6)
1. rail prebending machine control device, it is characterized in that: comprise programmable logic controller (PLC), frequency converter, scrambler, counter, four closed loops connect, and wherein frequency converter is connected control prebending machine vehicle motor and walks with the prebending machine vehicle motor, and scrambler is connected the acquisition feedback signal with prebending machine vehicle motor spindle nose.
2. rail prebending machine control device according to claim 1 is characterized in that: described rail prebending machine control device also comprises man-machine interface, and being connected with programmable logic controller (PLC) provides the pre-bending of the rail of various models to handle required relevant parameter.
3. rail prebending machine control device according to claim 1 is characterized in that: described programmable logic controller (PLC) is the 416-2DP of Siemens S7-400 series.
4. rail prebending machine control device according to claim 1 is characterized in that: described frequency converter is Powerflex700, and control prebending machine vehicle motor is walked.
5. rail prebending machine control device according to claim 1 is characterized in that: described counter is FM450-1.
6. rail prebending machine control device according to claim 1 is characterized in that: described man-machine interface is SIAMTIC MP 370.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200154870U CN201278108Y (en) | 2008-09-10 | 2008-09-10 | Rail pre-bending machine control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200154870U CN201278108Y (en) | 2008-09-10 | 2008-09-10 | Rail pre-bending machine control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201278108Y true CN201278108Y (en) | 2009-07-22 |
Family
ID=40895694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200154870U Expired - Lifetime CN201278108Y (en) | 2008-09-10 | 2008-09-10 | Rail pre-bending machine control apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201278108Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103153585A (en) * | 2010-08-23 | 2013-06-12 | 屋罗斯·杜兰强尼 | Bending pvc profiles using laser and plc controlling system |
| CN111957749A (en) * | 2020-08-11 | 2020-11-20 | 中冶东方工程技术有限公司 | Intelligent control method for pre-bending of section steel and section steel cooling bed applying intelligent control method |
-
2008
- 2008-09-10 CN CNU2008200154870U patent/CN201278108Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103153585A (en) * | 2010-08-23 | 2013-06-12 | 屋罗斯·杜兰强尼 | Bending pvc profiles using laser and plc controlling system |
| US20130147093A1 (en) * | 2010-08-23 | 2013-06-13 | Uros Turanjanin | Bending pvc profiles using laser and plc controlling system |
| CN111957749A (en) * | 2020-08-11 | 2020-11-20 | 中冶东方工程技术有限公司 | Intelligent control method for pre-bending of section steel and section steel cooling bed applying intelligent control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 114002 No. 292 South Zhonghua Road, Tiedong District, Liaoning, Anshan Patentee after: Anshan Iron and Steel Group Automation Co., Ltd. Address before: 114001 South China Road, Tiedong District, Liaoning, China, No. 292, No. Patentee before: Automation Company of Angang Group |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090722 |