CN114754659B - Position detection method for steel plate in water cooling area - Google Patents
Position detection method for steel plate in water cooling area Download PDFInfo
- Publication number
- CN114754659B CN114754659B CN202210192880.1A CN202210192880A CN114754659B CN 114754659 B CN114754659 B CN 114754659B CN 202210192880 A CN202210192880 A CN 202210192880A CN 114754659 B CN114754659 B CN 114754659B
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- steel plate
- detection points
- rollers
- transfer rollers
- conveying rollers
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 89
- 239000010959 steel Substances 0.000 title claims abstract description 89
- 238000001514 detection method Methods 0.000 title claims abstract description 80
- 238000001816 cooling Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 238000012546 transfer Methods 0.000 claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 10
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 239000012212 insulator Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000000498 cooling water Substances 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention provides a method for detecting the position of a steel plate in a water cooling area, which comprises the following steps: at least two conveying rollers are used as detection points in a cooling area; detecting whether the steel plate enters a cooling area; after the steel plate enters the cooling area, detecting whether adjacent or spaced conveying rollers are communicated by the steel plate or not; judging whether the steel plate reaches the corresponding detection point according to the communication condition between the conveying rollers. This scheme is with the steel sheet serving as the conductor, through detecting whether communicate in order to judge the position of steel sheet in the cooling zone between two transfer rollers, has avoided influencing the testing result because of steel sheet and cooling water contact.
Description
Technical Field
The invention belongs to the field of metallurgy, and particularly relates to a position detection method of a steel plate in a water cooling area.
Background
The thick plate production line accelerated cooling system (ACC) is positioned between the finishing mill and the straightener and is used for carrying out accurate quantitative watering cooling on the steel plate, when the steel plate passes through a cooling area (or called a water cooling area) of the accelerated cooling system, the water collecting pipe is controlled to be opened according to the preset conveying speed of the thickness of the steel plate, side spraying and opening are carried out between each section in the cooling area, accumulated water on the surface of the steel plate is purged, and the air blowing opening at an outlet of the accelerated cooling system is used for cleaning the accumulated water left on the surface of the steel plate.
At present, for the position detection of a steel plate during cooling, 2-3 steel plate position detection points are usually arranged in the ACC inlet direction, 2-3 steel plate position detection points are arranged in the outlet direction, a steel plate model moves on an HMI (human-machine interface) according to the speed calculation coordinates given by a roller table, then the head and tail coordinates of the steel plate are corrected according to the steel plate position detection points, and the position of the steel plate in a cooling area is judged. In general, a non-contact type method for detecting the position of a steel plate is adopted, that is, a hot metal detector, a cold metal detector or the like is used, but in the ACC cooling area, a large amount of mist is generated due to contact between the steel plate and cooling water during normal production, and detection by the hot metal detector, the cold metal detector or the like is affected, so that a steel plate position detection point is not usually provided in the ACC cooling area.
In the production of the thick plate production line, the steel plate with thicker specification is generally shorter in length and larger in weight, the contact area of the steel plate and the roller way is small, the steel plate is easy to slip, and the actual position of the steel plate is more backward than the model coordinate calculated through the speed of the roller way. The ACC cooling area is not provided with a position detection area, the coordinate tracking of the steel plate is uncontrollable, and the cooling accuracy is greatly affected.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a method for detecting a position of a steel plate in a water cooling area, so as to detect the position of the steel plate in the water cooling area.
To achieve the above and other related objects, the present invention provides a method for detecting a position of a steel plate in a water-cooled area, comprising:
at least two conveying rollers are used as detection points in a cooling area;
detecting whether the steel plate enters a cooling area;
after the steel plate enters the cooling area, detecting whether adjacent or spaced conveying rollers are communicated by the steel plate or not;
judging whether the steel plate reaches the corresponding detection point according to the communication condition between the conveying rollers.
Further, at least two conveying rollers are used as detection points, and the distance between the conveying rollers used as the detection points is smaller than the length of the steel plate.
Further, when judging whether the steel plate reaches the corresponding detection point according to the communication condition between the conveying rollers, judging whether the steel plate reaches the corresponding conveying rollers through the resistance change between the conveying rollers.
Further, the two ends of the conveying roller are rotationally connected with mounting seats for mounting the conveying roller, and when the conveying roller and the mounting seats are conductors and at least two conveying rollers are used as detection points, binding posts are arranged on the mounting seats at one end of the conveying roller which is used as the detection point.
Further, when at least two conveying rollers are used as detection points, if two conveying rollers are used as detection points, the mounting seats corresponding to the two conveying rollers are arranged in an insulating manner, and a resistor is connected between the binding posts corresponding to the two conveying rollers, when the steel plate covers the two conveying rollers used as detection points, the resistor is short-circuited by the steel plate, and the resistance between the two conveying rollers used as detection points changes.
Further, when at least two conveying rollers are used as detection points, if three conveying rollers are used as detection points, an installation seat on one conveying roller in the middle of the three conveying rollers and an installation seat of the other two conveying rollers are arranged in an insulating mode, a resistor is connected to a binding post corresponding to the middle conveying roller, the output end of the resistor is connected with connecting posts corresponding to the other two conveying rollers serving as detection points, and when a steel plate covers the conveying rollers corresponding to the two adjacent detection points, the resistance value between the conveying rollers corresponding to the two adjacent detection points changes.
Further, when judging whether the steel plate reaches the corresponding detection point according to the communication condition between the conveying rollers, connecting the connecting column to the detection mechanism, and connecting the output end of the detection mechanism to the thick plate production line accelerated cooling system.
Further, a base is arranged under the mounting seat, when the mounting seats corresponding to the two conveying rollers are arranged in an insulating manner, if two conveying rollers serving as detection points are arranged, the insulating arrangement of the two conveying rollers is realized by arranging insulators between the mounting seat corresponding to one conveying roller and the base, and if three conveying rollers serving as detection points are arranged, the insulating arrangement of the middle conveying roller and the other two conveying rollers is realized by arranging insulators between the mounting seat corresponding to the middle conveying roller and the base.
As described above, the method for detecting the position of the steel plate in the water cooling area has the following beneficial effects:
this scheme is with the steel sheet serving as the conductor, through detecting whether communicate in order to judge the position of steel sheet in the cooling zone between two transfer rollers, has avoided influencing the testing result because of steel sheet and cooling water contact.
Drawings
FIG. 1 is a schematic diagram of an in-place detecting device for a slab in a cooling area according to an embodiment of the present invention.
Fig. 2 is a schematic view of a mounting structure between a mounting base and a base at one end of a first conveying roller according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of connection of a detection circuit in an embodiment of the invention.
Fig. 4 is a schematic diagram of detection during conveying of a steel sheet according to an embodiment of the present invention.
Detailed Description
Reference numerals in the drawings of the specification include: the first conveying roller 1, the second conveying roller 2, the third conveying roller 3, the mounting seat 4, the base 5, the insulator 6, the fixing bolt 7, the first binding post 8, the second binding post 9, the third binding post 10 and the steel plate 12.
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
Examples
The embodiment provides a method for detecting the position of a steel plate in a water cooling area, which comprises the following steps:
at least two conveying rollers are used as detection points in a cooling area;
detecting whether the steel plate 12 enters a cooling area;
after the steel plate 12 enters the cooling area, detecting whether adjacent or spaced conveying rollers are communicated by the steel plate 12;
whether the steel sheet 12 reaches the corresponding detection point is judged according to the communication condition between the conveying rollers.
Alternatively, at least two conveying rollers are taken as detection points, and the distance between the conveying rollers as detection points is smaller than the length of the steel sheet 12.
Alternatively, when judging whether the steel sheet 12 reaches the corresponding detection point according to the communication condition between the conveying rollers, judging whether the steel sheet 12 reaches the corresponding conveying roller by the resistance change between the conveying rollers.
Optionally, two ends of the conveying roller are rotatably connected with mounting seats 4 for mounting the conveying roller, the conveying roller and the mounting seats 4 are conductors, and when at least two conveying rollers are used as detection points, binding posts are arranged on the mounting seats 4 at one end of the conveying roller serving as the detection points.
Alternatively, when at least two conveying rollers are used as the detection points, if two conveying rollers are used as the detection points, the mounting seats 4 corresponding to the two conveying rollers are arranged in an insulating manner, and a resistor is connected between the binding posts corresponding to the two conveying rollers, when the steel plate 12 covers the two conveying rollers used as the detection points, the resistor is short-circuited by the steel plate 12, and the resistance value between the two conveying rollers used as the detection points changes.
Optionally, when at least two conveying rollers are used as detection points, if three conveying rollers are used as detection points, a mounting seat 4 on one conveying roller in the middle of the three conveying rollers and a mounting seat 4 of the other two conveying rollers are arranged in an insulating manner, a resistor is connected to a binding post corresponding to the middle conveying roller, an output end of the resistor is connected with connecting posts corresponding to the other two conveying rollers serving as detection points, and when the steel plate 12 covers the conveying rollers corresponding to the two adjacent detection points, the resistance between the conveying rollers corresponding to the two adjacent detection points changes.
Optionally, when judging whether the steel plate 12 reaches the corresponding detection point according to the communication condition between the conveying rollers, connecting the connecting column to the detection mechanism, and connecting the output end of the detection mechanism to the thick plate production line accelerated cooling system. The thick plate production line accelerated cooling system comprises a control module and the like.
Optionally, when the base 5 is arranged below the mounting seat 4 and the mounting seats 4 corresponding to the two conveying rollers are arranged in an insulating manner, if two conveying rollers serving as detection points are arranged, the insulating body 6 is arranged between the mounting seat 4 corresponding to one conveying roller and the base 5 to realize the insulating arrangement of the two conveying rollers, and if three conveying rollers serving as detection points are arranged, the insulating body 6 is arranged between the mounting seat 4 corresponding to the middle conveying roller and the base 5 to realize the insulating arrangement. In this embodiment, the mounting seat 4 and the base 5 are fixed by a fixing bolt 7, and an insulating coating is disposed on the fixing bolt 7 between the mounting seat 4 and the base 5, which are provided with an insulator 6, and the insulating coating is disposed on a non-threaded section of the fixing bolt 7.
As shown in fig. 1 to 4, for the above method for detecting the position of the steel plate in the water cooling area, this embodiment also discloses a device for detecting the position of the steel plate in the cooling area, including:
and a conveying roller disposed in the cooling area. The transfer rollers in this embodiment include a first transfer roller 1, a second transfer roller 2, and a third transfer roller 3, and the first transfer roller 1, the second transfer roller 2, and the third transfer roller 3 transfer the steel sheet 12 together with a conventional roller table for transferring the steel sheet 12 in a cooling area. The arrow in fig. 4 points in the conveying direction of the steel sheet 12.
The cross section of the base 5 is in an I shape. The bases 5 are provided with two groups, and each group of bases 5 is used for supporting one end of the conveying roller.
The mounting seat 4 is arranged on the base 5 through the fixing bolts 7, one end of each conveying roller is correspondingly provided with an independent mounting seat 4, and two ends of each conveying roller are respectively connected with the mounting seat 4 in a rotating mode. In this embodiment, the mounting seat 4 disposed at the front end of the first conveying roller 1 is referred to as a first mounting seat, the mounting seat 4 disposed at the front end of the second conveying roller 2 is referred to as a second mounting seat, and the mounting seat 4 disposed at the front end of the third conveying roller 3 is referred to as a third mounting seat. An insulator 6 is arranged between the first mounting seat and the base 5, a first binding post 8 is arranged on the top surface of the first mounting seat, a second binding post 9 is arranged on the top surface of the second mounting seat, a third binding post 10 is arranged on the top surface of the third mounting seat, a resistor R is connected to the first binding post 8, the input end of the resistor R is connected with the first binding post 8, and the output end of the resistor R is connected with the second binding post 9 and the third binding post 10. The first binding post 8, the second binding post 9 and the third binding post 10 are connected with a control module, the control module is connected with an RTD thermal resistance input clamping piece, the first binding post 8, the second binding post 9 and the third binding post 10 are connected with corresponding input ends of the RTD thermal resistance input clamping piece, and output ends of the RTD thermal resistance input clamping piece are connected with the control module. The output end of the control module is connected with a display module, and the detection result of the RTD thermal resistance input clamping piece is output and displayed through the display module. In this embodiment, the conveying roller, the base 5 and the mounting base 4 are all conductors, and an insulating coating is arranged outside the non-threaded section of the fixing bolt 7 on the first mounting base. The insulator 6 is an insulating rubber pad, and the display module comprises an LED display screen. The control module comprises a controller, the controller can select the existing PLC, and the resistance value of the resistor R is 300 omega.
In use, if the steel sheet 12 is not transferred onto the first transfer roller 1, the second transfer roller 2, and the third transfer roller 3, the resistance between the first transfer roller 1 and the second transfer roller 2 is 300Ω, the resistance between the first transfer roller 1 and the third transfer roller 3 is 300Ω, and the resistance between the second transfer roller 2 and the third transfer roller 3 is 0Ω. When the steel sheet 12 is transferred onto the first transfer roller 1 and the second transfer roller 2, the first transfer roller 1 and the second transfer roller 2 are electrically connected by the steel sheet 12, so that the resistance between the first transfer roller 1 and the second transfer roller 2 is changed, and the resistance between the first transfer roller 1 and the second transfer roller 2 is unchanged. When the first transfer roller 1 and the third transfer roller 3 are electrically connected by the steel sheet 12, the resistance between the first transfer roller 1 and the third transfer roller 3 changes. When the steel sheet 12 leaves the second transfer roller 2, the resistance between the first transfer roller 1 and the second transfer roller 2 is restored to 300 Ω, and when the steel sheet 12 leaves the first transfer roller 1, the resistance between the first transfer roller 1 and the third transfer roller 3 is restored to 300 Ω, thereby realizing the position detection of the steel sheet 12 in the cooling zone. The provision of the third conveying roller 3 increases the detection accuracy of the steel sheet 12.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (6)
1. The method for detecting the position of the steel plate in the water cooling area is characterized by comprising the following steps of:
at least two conveying rollers are used as detection points in a cooling area;
detecting whether the steel plate enters a cooling area;
after the steel plate enters the cooling area, detecting whether adjacent or spaced conveying rollers are communicated by the steel plate or not;
judging whether the steel plate reaches a corresponding detection point according to the communication condition between the conveying rollers;
wherein,
when at least two conveying rollers are used as detection points in the cooling area, the distance between the conveying rollers used as the detection points is smaller than the length of the steel plate;
judging whether the steel plate reaches the corresponding conveying rollers or not through resistance change between the conveying rollers when judging whether the steel plate reaches the corresponding detection points according to the communication condition between the conveying rollers.
2. The method according to claim 1, wherein the two ends of the transfer roller are rotatably connected with mounting bases for mounting the transfer roller, the transfer roller and the mounting bases are conductors, and the mounting bases at one end of the transfer roller serving as the detection point are provided with binding posts when at least two transfer rollers are used as the detection points.
3. The method according to claim 2, wherein when at least two transfer rollers are used as the detection points, if there are two transfer rollers used as the detection points, the mounting seats corresponding to the two transfer rollers are insulated, and a resistor is connected between the posts corresponding to the two transfer rollers, and when the steel plate covers the two transfer rollers used as the detection points, the resistor is short-circuited by the steel plate, and the resistance between the two transfer rollers used as the detection points is changed.
4. The method according to claim 3, wherein when at least two transfer rollers are used as the detection points, if three transfer rollers are used as the detection points, the mounting seat on the middle one of the three transfer rollers is insulated from the mounting seats of the other two transfer rollers, the resistor is connected to the binding post corresponding to the middle one of the transfer rollers, the output end of the resistor is connected to the connecting post corresponding to the other two transfer rollers as the detection points, and when the steel plate covers the transfer rollers corresponding to the two adjacent detection points, the resistance between the transfer rollers corresponding to the two adjacent detection points is changed.
5. The method for detecting the position of a steel plate in a water-cooled area according to claim 3 or 4, wherein when judging whether the steel plate reaches the corresponding detection point according to the communication condition between the conveying rollers, connecting the connecting column to the detection mechanism, and connecting the output end of the detection mechanism to the thick plate production line accelerated cooling system.
6. The method according to claim 5, wherein a base is provided under the mounting base, and when the mounting bases corresponding to the two transfer rollers are arranged in an insulating manner, if two transfer rollers are used as detection points, an insulator is provided between the mounting base corresponding to one transfer roller and the base to realize the insulating arrangement of the two transfer rollers, and if three transfer rollers are used as detection points, an insulator is provided between the mounting base corresponding to the middle transfer roller and the base to realize the insulating arrangement of the middle transfer roller and the other two transfer rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210192880.1A CN114754659B (en) | 2022-02-28 | 2022-02-28 | Position detection method for steel plate in water cooling area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210192880.1A CN114754659B (en) | 2022-02-28 | 2022-02-28 | Position detection method for steel plate in water cooling area |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114754659A CN114754659A (en) | 2022-07-15 |
| CN114754659B true CN114754659B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210192880.1A Active CN114754659B (en) | 2022-02-28 | 2022-02-28 | Position detection method for steel plate in water cooling area |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0669712U (en) * | 1993-03-16 | 1994-09-30 | 株式会社明電舎 | Position detection device for moving body |
| JPH0727631A (en) * | 1993-07-08 | 1995-01-31 | Nippon Steel Corp | Temperature detecting apparatus for hot steel plate and temperature control apparatus |
| JP2000241103A (en) * | 1999-02-25 | 2000-09-08 | Casio Comput Co Ltd | Moving body detecting apparatus |
| CN101201237A (en) * | 2006-12-14 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | Detecting instrument |
| KR20130023702A (en) * | 2011-08-29 | 2013-03-08 | 현대제철 주식회사 | Apparatus for detecting position of hot rolled steel sheet in accelerating cooler |
| KR20130074097A (en) * | 2011-12-26 | 2013-07-04 | 주식회사 포스코 | Apparatus and method for detecting defects on rolled strip |
| CN107433287A (en) * | 2016-05-26 | 2017-12-05 | 宝山钢铁股份有限公司 | A kind of hot-rolling flying shears shear the dynamic control method of original position end to end |
| CN112936561A (en) * | 2021-01-28 | 2021-06-11 | 广东博智林机器人有限公司 | Deviation detection device and method for steel bars in prefabricated part |
| CN113311488A (en) * | 2020-02-26 | 2021-08-27 | 泰科电子(上海)有限公司 | Device for detecting and device for handling objects |
-
2022
- 2022-02-28 CN CN202210192880.1A patent/CN114754659B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0669712U (en) * | 1993-03-16 | 1994-09-30 | 株式会社明電舎 | Position detection device for moving body |
| JPH0727631A (en) * | 1993-07-08 | 1995-01-31 | Nippon Steel Corp | Temperature detecting apparatus for hot steel plate and temperature control apparatus |
| JP2000241103A (en) * | 1999-02-25 | 2000-09-08 | Casio Comput Co Ltd | Moving body detecting apparatus |
| CN101201237A (en) * | 2006-12-14 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | Detecting instrument |
| KR20130023702A (en) * | 2011-08-29 | 2013-03-08 | 현대제철 주식회사 | Apparatus for detecting position of hot rolled steel sheet in accelerating cooler |
| KR20130074097A (en) * | 2011-12-26 | 2013-07-04 | 주식회사 포스코 | Apparatus and method for detecting defects on rolled strip |
| CN107433287A (en) * | 2016-05-26 | 2017-12-05 | 宝山钢铁股份有限公司 | A kind of hot-rolling flying shears shear the dynamic control method of original position end to end |
| CN113311488A (en) * | 2020-02-26 | 2021-08-27 | 泰科电子(上海)有限公司 | Device for detecting and device for handling objects |
| CN112936561A (en) * | 2021-01-28 | 2021-06-11 | 广东博智林机器人有限公司 | Deviation detection device and method for steel bars in prefabricated part |
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| Publication number | Publication date |
|---|---|
| CN114754659A (en) | 2022-07-15 |
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