CN116890037A - Strip steel warping processing system and method - Google Patents
Strip steel warping processing system and method Download PDFInfo
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- CN116890037A CN116890037A CN202310747698.2A CN202310747698A CN116890037A CN 116890037 A CN116890037 A CN 116890037A CN 202310747698 A CN202310747698 A CN 202310747698A CN 116890037 A CN116890037 A CN 116890037A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 142
- 239000010959 steel Substances 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000012545 processing Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 38
- 230000033228 biological regulation Effects 0.000 claims abstract description 28
- 238000004458 analytical method Methods 0.000 claims abstract description 18
- 238000003672 processing method Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 20
- 238000004364 calculation method Methods 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 7
- 238000007781 pre-processing Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000013000 roll bending Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
-
- 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
Abstract
The application discloses a strip steel warping processing system and a strip steel warping processing method, wherein the processing system comprises a leveling machine and a detection analysis unit; the detection analysis unit is used for detecting the strip steel warping state information on the leveling machine in real time and extracting the warping degree information of the strip steel, and calculating the adjustment value of the warping regulation parameter when the warping degree of the strip steel exceeds the set upper limit; the leveling machine is used for carrying out real-time adjustment on the warping of the strip steel according to the adjustment value received by the control system. The application realizes the online detection of the warping degree of the flat strip steel, combines the technological process parameters of the leveling machine to adjust the shape, can realize the closed-loop feedback control of the warping, improves the warping control capacity and level, and has important significance for improving the shape quality and the product quality.
Description
Technical Field
The present application relates toIntelligent rollingTechnical field especially relates to a strip steel warping processing system and method.
Background
With the increasing increase of the requirements of users on the quality of steel coils, the warping of the strip steel has become one of important indexes affecting the quality of strip steel products. The hot rolling leveling production line is generally not provided with means and methods for measuring the warping height of the strip steel on line, the measurement precision of a common manual measurement mode is difficult to ensure, the production rhythm is influenced by the measurement process, and meanwhile, the manual measurement labor intensity is high, and the coil passing detection are difficult to realize. The shutdown measurement is affected by the process state change, so that the warping degree in the normal and smooth process state cannot be accurately reflected, and the online control of the strip steel warping is more difficult to realize.
Disclosure of Invention
The present application has been made in view of the above problems, and it is an object of the present application to provide a strip steel warp treatment system and method that overcomes or at least partially solves the above problems.
In a first aspect, there is provided a strip steel warp treatment system comprising: a leveling machine and a detection and analysis unit;
the detection analysis unit is used for detecting the strip steel warping state information on the leveling machine in real time and extracting the warping degree information of the strip steel, and calculating the adjustment value of the warping regulation parameter when the warping degree of the strip steel exceeds the set upper limit;
the leveling machine is used for carrying out real-time adjustment on the warping of the strip steel according to the adjustment value received by the control system.
Optionally, the detection and analysis unit includes:
the laser is used for obliquely projecting a word line detection laser to the surface of the strip steel at a set angle to form projection lines related to the strip steel warping direction and the warping height;
a camera for shooting the projection line to form an image;
the data acquisition module is used for acquiring the image from the camera, and acquiring the steel coil information of the strip steel and the real-time value of the warping regulation parameter from the temper mill;
the image processing module is used for preprocessing the image acquired by the data acquisition module to obtain basic image data;
the calculation module is used for calculating the warping degree of the strip steel and the adjustment value of the warping regulation parameter according to the basic image data and the steel coil information;
and the feedback module is used for feeding back the adjustment value of the warping regulation parameter to the control system of the leveling machine.
Optionally, the method further comprises: and the display module is used for displaying the calculation result obtained by the calculation module.
Optionally, the method further comprises: and the storage module is used for storing the calculation result of the calculation module and the real-time adjusted process parameters.
Optionally, the method further comprises: and the query module is used for querying the information stored by the storage module.
In a second aspect, a method for processing strip steel warpage is provided, including: detecting strip steel warping state information on the temper mill in real time, extracting warping degree information of the strip steel, and calculating an adjusting value of a warping adjusting parameter when the warping degree of the strip steel exceeds a set upper limit;
and carrying out real-time warping adjustment on the strip steel according to the adjustment value.
Optionally, the detecting, in real time, the strip steel warp status information on the leveling machine includes:
obliquely projecting a word line detection laser to the surface of the strip steel at a set angle to form projection lines related to the strip steel warping direction and the strip steel warping height;
and shooting the projection line to form an image.
Optionally, the extracting the information of the warp degree of the strip steel, when the warp degree of the strip steel exceeds a set upper limit, calculating an adjustment value of a warp adjusting parameter, including:
collecting the image, namely collecting steel coil information of the strip steel and a real-time value of the warping regulation parameter from the leveling machine;
preprocessing the acquired image to obtain basic image data;
calculating the warping degree of the strip steel and the adjustment value of the warping regulation parameter according to the basic image data and the steel coil information;
and feeding back the adjustment value of the warping regulation parameter to a control system of the leveling machine.
Optionally, the steel coil information of the strip steel comprises the width and the position of the strip steel; the warping regulation and control parameters comprise rolling force, bending force, rolling speed and inlet and outlet tension of the leveling machine; the warping degree information of the strip steel comprises the warping direction and the warping height of the strip steel.
Optionally, during the real-time adjustment, judging whether the real-time adjustment is successful or not according to the real-time value of the strip steel warping state information.
The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages:
according to the strip steel warping processing system and method provided by the embodiment of the application, the online detection of the warping degree of the flat strip steel is performed through the detection and analysis unit, the plate shape adjustment is performed in combination with the technological process parameters of the flattening machine, the closed-loop feedback control of the warping is realized, the warping control capability and level are improved, and the strip steel warping processing system and method have important significance in improving the plate shape quality and the product quality. In the second aspect, the warp history data can be traced according to the steel coil information through data inquiry, so that the tracking and the reverse checking of the strip steel warp records are facilitated, and the strip shape problem and the quality objection can be solved. The automation level of warp detection is improved, the labor intensity of manual measurement is reduced, and subjectivity and error of manual measurement can be avoided.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic diagram of a band steel warp treatment system in an embodiment of the application;
FIG. 2 is a schematic diagram of a detection and analysis unit according to an embodiment of the present application;
FIG. 3 is a schematic diagram of an embodiment of the present application;
FIG. 4 is a flowchart of a process for treating warpage of strip steel in accordance with an embodiment of the present application;
FIG. 5 is a diagram showing a real object of a process for treating warpage of strip steel in accordance with an embodiment of the present application;
FIG. 6 is a second embodiment of a process for warpage of strip steel in accordance with the present application;
FIG. 7 is a third embodiment of a process for treating warpage of steel strip in accordance with the present application;
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.
Various structural schematic diagrams according to embodiments of the present disclosure are shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated for clarity of presentation and may have been omitted. The shapes of the various regions, layers and relative sizes, positional relationships between them shown in the drawings are merely exemplary, may in practice deviate due to manufacturing tolerances or technical limitations, and one skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions as actually required.
In order to better understand the above technical solutions, the following detailed description will be made with reference to specific embodiments, and it should be understood that the embodiments of the present disclosure and specific features in the embodiments are detailed descriptions of the technical solutions of the present disclosure, and not limiting the technical solutions of the present disclosure, and the technical features in the embodiments and embodiments of the present disclosure may be combined with each other without conflict.
The application provides a strip steel warping processing system, please refer to fig. 1, fig. 1 is a schematic diagram of a strip steel warping processing system in an embodiment of the application, comprising: a leveling machine and a detection and analysis unit;
the detection analysis unit is used for detecting the strip steel warping state information on the leveling machine in real time and extracting the warping degree information of the strip steel, and calculating the adjustment value of the warping regulation parameter when the warping degree of the strip steel exceeds the set upper limit;
the leveling machine is used for carrying out real-time adjustment on the warping of the strip steel according to the adjustment value received by the control system.
In an alternative embodiment, the detection and analysis unit comprises: the system comprises a laser, a camera, a data acquisition module, an image processing module, a calculation module and a feedback module. The laser is used for obliquely projecting a word line detection laser to the surface of the strip steel at a set angle to form projection lines related to the strip steel warping direction and the warping height. And the camera is used for shooting the projection line and sending the image to the detection and analysis unit for processing. FIG. 2 is a schematic diagram of a detection and analysis unit according to an embodiment of the application; the detection unit adopts on-line detection equipment, and the basic principle is that laser lines projected on the hot rolled strip steel are shot by a camera, and the identification of warping defects and the detection of warping heights are achieved through image identification and data processing. The principle of the hot rolled strip warp detection equipment is shown in figure 3. A word line detection laser is obliquely projected to the surface of the strip steel at a certain angle, so that the line laser is projected to the surface of the strip steel in operation at an angle alpha, and projection lines related to the strip steel warping direction and the warping height are formed on the line laser. And (3) a high-speed camera is arranged at a proper position to enable the center area of the visual field of the camera to cover the laser line on the surface of the strip steel. And shooting the projection line by using a camera, sending the shot image to a detection and analysis unit for processing, extracting and identifying characteristic information such as the strip steel warping direction, the height and the like by the detection and analysis unit, and finally obtaining the online warping curve distribution of the hot rolled strip steel. The data acquisition module is used for acquiring required data from the equipment end or the production line system and comprises 1) image data shot by a camera; 2) And acquiring parameters such as speed, steel coil information and the like in the leveling machine system. The image processing module performs preprocessing on the acquired camera image, including region-of-interest selection, binarization and the like, so as to obtain a basic image which can be used for model calculation. And the calculation module calculates the warping height of the strip steel according to the processed image data and the width and position information of the strip steel. The display module displays calculation results in the forms of a graph, a cloud chart and the like, wherein the calculation results comprise a section profile of the strip steel, a warping height along the length direction of the strip steel, a whole-roll warping appearance and the like.
Specifically, the system further comprises a data storage unit for storing the steel coil basic information, the process parameters and the warping calculation result. A data query unit: the method is used for inquiring the basic information, the process parameters and the warping calculation result of the steel coil. And a regulation and control feedback unit: and feeding back adjustment parameters including rolling force, bending force and the like to a leveling machine control system.
By implementing the technology, the online continuous measurement of the warping of the hot rolled strip steel and the traceability of warping data can be realized, and the warping control capability is improved by combining with the optimization of the parameters of a temper mill, so that the plate shape quality and the product quality are improved.
Based on the same inventive concept, the embodiment of the application further provides a strip steel warping processing method, please refer to fig. 4, fig. 4 is a flowchart of a strip steel warping processing process in the embodiment of the application, including: detecting strip steel warping state information on the temper mill in real time, extracting warping degree information of the strip steel, and calculating an adjusting value of a warping adjusting parameter when the warping degree of the strip steel exceeds a set upper limit; and carrying out real-time warping adjustment on the strip steel according to the adjustment value.
As an alternative implementation mode, an on-line detection device formed by a laser and a camera is used for detecting the strip steel warping state information on the leveling machine in real time, and the method comprises the following steps:
and the laser obliquely projects a word line detection laser to the surface of the strip steel at a set angle to form projection lines related to the strip steel warping direction and the warping height. And shooting the projection line by a camera to obtain an image of the projection line. Extracting warp degree information of the strip steel from the image, specifically, the warp degree information including: and extracting the warping direction and the warping height of the strip steel from the projection line image. The warping regulation parameters comprise rolling force, bending force, rolling speed and inlet and outlet tension of the leveling machine. And during the real-time adjustment, judging whether the real-time adjustment is successful or not according to the strip steel warping state information detected in real time.
Then, the image is acquired from the camera, and the coil information of the strip steel and the real-time value of the warping regulation parameter are acquired from the temper mill. Preprocessing the acquired image to obtain basic image data. And calculating the warping degree of the strip steel and the adjustment value of the warping regulation parameter according to the basic image data and the steel coil information. And feeding back the adjustment value of the warping regulation parameter to a control system of the leveling machine. The steel coil information of the strip steel comprises the width and the position of the strip steel; the warping regulation and control parameters comprise rolling force, bending force, rolling speed and inlet and outlet tension of the leveling machine; the warping degree information of the strip steel comprises the warping direction and the warping height of the strip steel.
The following describes in detail, with reference to an example, a method for performing a strip warp process by using the strip warp processing system according to the embodiment of the present application:
when a production line produces a steel grade of 590MPa, the head 20m is measured by an on-line warping detection device to start to have C warping of 13-15mm, as shown in figure 5, and the warping limit value of the steel grade is exceeded by 4mm. The rolling parameters of the temper mill are as follows: the rolling force rf=5200 kN, the roll bending force rfb=500 kN, the rolling speed v=130 m/min, the inlet/outlet tension t=86/198 kN. The regulation and control process and the effect are as follows:
step 1: on the basis of meeting the wave shape regulation effect, the rolling force is reduced, the problem of strip steel upwarping caused by lower roller transmission of a temper mill under large rolling force is reduced, the rolling force is reduced by 10% through calculation of a regulation model, namely, the rolling force is reduced to RF=4680 kN, and the value is sent to level 1. After the process parameter adjustment is completed, the equipment detects the warpage degree in real time, the warpage height is reduced to 9mm, and the waviness degree is unchanged, as shown in fig. 6.
Step 2: under the condition that the rolling force RF=4680 kN, the rolling speed and the inlet/outlet tension technological parameters are unchanged, the bending force is reduced by 20% through calculation of a regulation model, namely the bending force is reduced to RFB=400 kN and is sent to level 1, after technological parameter adjustment is completed, equipment detects the warping degree in real time, the warping height is reduced to 4mm, and the warping limit value of the steel grade is met.
Step 3: rolling according to the technological parameters to finish the real-time monitoring and control of the warping problem of the coil.
The above adjustment process lasts about 10 meters, and the strip steel online real-time detection warpage degree gradually decreases in the adjustment process, and meanwhile, the detection precision and the adjustment efficiency are combined with the unloading actual measurement result to meet the requirement of the production line, as shown in fig. 7.
The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages:
according to the strip steel warping processing system and method provided by the embodiment of the application, the online detection of the warping degree of the flat strip steel is performed through the detection and analysis unit, the plate shape adjustment is performed in combination with the technological process parameters of the flattening machine, the closed-loop feedback control of the warping is realized, the warping control capability and level are improved, and the strip steel warping processing system and method have important significance in improving the plate shape quality and the product quality. In the second aspect, the warp history data can be traced according to the steel coil information through data inquiry, so that the tracking and the reverse checking of the strip steel warp records are facilitated, and the strip shape problem and the quality objection can be solved. The automation level of warp detection is improved, the labor intensity of manual measurement is reduced, and subjectivity and error of manual measurement can be avoided.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the application, various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed as reflecting the intention that: i.e., the claimed application requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.
Claims (10)
1. A strip steel warp treatment system, comprising: a leveling machine and a detection and analysis unit;
the detection analysis unit is used for detecting the strip steel warping state information on the leveling machine in real time and extracting the warping degree information of the strip steel, and calculating the adjustment value of the warping regulation parameter when the warping degree of the strip steel exceeds the set upper limit;
the leveling machine is used for carrying out real-time adjustment on the warping of the strip steel according to the adjustment value received by the control system.
2. The strip steel warp processing system according to claim 1, wherein the detection analysis unit comprises:
the laser is used for obliquely projecting a word line detection laser to the surface of the strip steel at a set angle to form projection lines related to the strip steel warping direction and the warping height;
a camera for shooting the projection line to form an image;
the data acquisition module is used for acquiring the image from the camera, and acquiring the steel coil information of the strip steel and the real-time value of the warping regulation parameter from the temper mill;
the image processing module is used for preprocessing the image acquired by the data acquisition module to obtain basic image data;
the calculation module is used for calculating the warping degree of the strip steel and the adjustment value of the warping regulation parameter according to the basic image data and the steel coil information;
and the feedback module is used for feeding back the adjustment value of the warping regulation parameter to the control system of the leveling machine.
3. The strip steel warp treatment system of claim 2, further comprising:
and the display module is used for displaying the calculation result obtained by the calculation module.
4. The strip steel warp treatment system of claim 3, further comprising:
and the storage module is used for storing the calculation result of the calculation module and the real-time adjusted process parameters.
5. The strip steel warp treatment system of claim 4, further comprising:
and the query module is used for querying the information stored by the storage module.
6. A strip steel warping processing method is characterized by comprising the following steps:
detecting strip steel warping state information on the temper mill in real time, extracting warping degree information of the strip steel, and calculating an adjusting value of a warping adjusting parameter when the warping degree of the strip steel exceeds a set upper limit;
and carrying out real-time warping adjustment on the strip steel according to the adjustment value.
7. The strip steel warp processing method of claim 6, wherein the detecting strip steel warp status information on the temper mill in real time comprises:
obliquely projecting a word line detection laser to the surface of the strip steel at a set angle to form projection lines related to the strip steel warping direction and the strip steel warping height;
and shooting the projection line to form an image.
8. The method of claim 7, wherein extracting the warp degree information of the strip, and calculating the adjustment value of the warp control parameter when the warp degree of the strip exceeds the set upper limit, comprises:
collecting the image, namely collecting steel coil information of the strip steel and a real-time value of the warping regulation parameter from the leveling machine;
preprocessing the acquired image to obtain basic image data;
calculating the warping degree of the strip steel and the adjustment value of the warping regulation parameter according to the basic image data and the steel coil information;
and feeding back the adjustment value of the warping regulation parameter to a control system of the leveling machine.
9. The method of claim 8, wherein the coil information of the strip includes a width and a position of the strip; the warping regulation and control parameters comprise rolling force, bending force, rolling speed and inlet and outlet tension of the leveling machine; the warping degree information of the strip steel comprises the warping direction and the warping height of the strip steel.
10. The method of claim 9, wherein during said real-time adjustment, determining whether said real-time adjustment was successful is based on a real-time value of said strip warp status information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310747698.2A CN116890037A (en) | 2023-06-21 | 2023-06-21 | Strip steel warping processing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310747698.2A CN116890037A (en) | 2023-06-21 | 2023-06-21 | Strip steel warping processing system and method |
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| Publication Number | Publication Date |
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| CN116890037A true CN116890037A (en) | 2023-10-17 |
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| CN202310747698.2A Pending CN116890037A (en) | 2023-06-21 | 2023-06-21 | Strip steel warping processing system and method |
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| CN (1) | CN116890037A (en) |
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2023
- 2023-06-21 CN CN202310747698.2A patent/CN116890037A/en active Pending
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