CN115415323A - Control method and device for reducing edge damage in steel strip coiling process - Google Patents
Control method and device for reducing edge damage in steel strip coiling process Download PDFInfo
- Publication number
- CN115415323A CN115415323A CN202211257599.8A CN202211257599A CN115415323A CN 115415323 A CN115415323 A CN 115415323A CN 202211257599 A CN202211257599 A CN 202211257599A CN 115415323 A CN115415323 A CN 115415323A
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- China
- Prior art keywords
- steel strip
- side guide
- offset
- guide plate
- coiling process
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 82
- 239000010959 steel Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000001125 extrusion Methods 0.000 claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- 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
- B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
- B21B39/165—Guides or guide rollers for rods, bars, rounds, tubes ; Aligning guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
The invention discloses a control method for reducing edge damage in a steel strip coiling process, belongs to the technical field of steel strip coiling, and solves the technical problem of edge damage in the current steel strip coiling process, and the method comprises the following steps: and acquiring deviation parameters of the steel belt on the conveyor belt at the upstream of the side guide plates on the two sides, and adjusting the position of the side guide plate deviated by the steel belt according to the deviation parameters so as to reduce the extrusion force between the steel belt and the side guide plate. The invention discloses a control device for reducing edge damage in a steel strip coiling process. According to the invention, the offset parameter of the steel strip is detected in real time, and when the position of the steel strip is offset, the side guide plate is controlled to move towards the offset direction of the steel strip according to the offset parameter, so that the extrusion force between the steel strip and the side guide plate is reduced, and the edge damage of the steel strip in the coiling process is reduced.
Description
Technical Field
The invention relates to the technical field of steel strip coiling, in particular to a control method and a control device for reducing edge damage in a steel strip coiling process.
Background
At hot rolling steel strip batch process, the steel band is earlier through the side guide of both sides, then gets into the coiling machine, and the steel band probably produces the condition of inclined to one side board when the side guide of both sides, and the steel band extrusion force that one side and side guide can appear at this moment is big, and the opposite side is little with the extrusion force of side guide, and limit portion damage appears easily in the big one side of steel band extrusion force to influence the quality that the steel band coiled up, not conform to the needs recoiling of BAF pan feeding standard, cause cost increase.
Disclosure of Invention
The present invention is directed to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a control method capable of reducing edge damage in a steel strip coiling process.
The invention also aims to provide a control device capable of reducing edge damage in the steel strip coiling process.
In order to achieve the first purpose, the invention provides a control method for reducing edge damage in a steel strip coiling process, which includes the steps of acquiring a deviation parameter of a steel strip on a conveying belt at the upstream of side guide plates at two sides, and adjusting the position of the side guide plate with the deviation of the steel strip according to the deviation parameter so as to reduce extrusion force between the steel strip and the side guide plate.
As a further improvement, the center line offset or the side edge offset of the steel strip is acquired as the offset parameter.
Further, drawing an offset curve according to the obtained offset parameters of the steel strip;
setting a value period, and taking the average value of each point on the offset curve in the value period as an offset parameter in the value period.
Further, time delay is determined according to the moving speed of the steel belt and the distance between the position detection point and the side guide plate, and the position of the side guide plate is adjusted after the time delay according to the current offset parameter.
Further, the deviation parameter of the steel strip is obtained through a width detector.
In order to achieve the second purpose, the invention provides a control device for reducing edge damage in a steel strip coiling process, which comprises a conveying belt, a controller and a width detector, wherein two sides of the conveying belt are respectively provided with a side guide plate, the outer side of each side guide plate is connected with a hydraulic cylinder, each hydraulic cylinder is provided with a displacement sensor, the width detector is arranged on the conveying belt at the upstream of the side guide plates at the two sides, and the controller is electrically connected with the displacement sensors, the hydraulic cylinders and the width detector;
the controller obtains the offset parameters of the steel strip on the conveying belt at the upstream of the side guide plates at the two sides through the width detector, and controls the hydraulic cylinder to work according to the control method for reducing the edge damage in the steel strip coiling process.
Advantageous effects
Compared with the prior art, the invention has the advantages that:
according to the invention, the offset parameter of the steel strip is detected in real time, and when the position of the steel strip is offset, the side guide plate is controlled to move towards the offset direction of the steel strip according to the offset parameter, so that the extrusion force between the steel strip and the side guide plate is reduced, and the edge damage of the steel strip in the coiling process is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a graph of the offset in the present invention.
Wherein: 1-side guide plate, 2-conveying belt, 3-steel belt, 4-width detector and 5-hydraulic cylinder.
Detailed Description
The invention will be further described with reference to specific embodiments shown in the drawings.
Referring to fig. 1-2, a control method for reducing edge damage in a steel strip coiling process includes obtaining offset parameters of a steel strip 3 on a conveyor belt 2 at the upstream of two side guide plates 1, adjusting the position of the side guide plate 1 to which the steel strip 3 deviates to the left according to the offset parameters, namely, adjusting the side guide plate 1 at the left side when the steel strip 3 deviates to the right, and adjusting the side guide plate 1 at the right side when the steel strip 3 deviates to the right, so as to reduce extrusion force between the steel strip 3 and the side guide plate 1, and reduce edge damage of the steel strip in the coiling process.
In this embodiment, the center line offset amount or the side edge offset amount of the steel strip 3 is acquired as the offset parameter, and the center line offset amount or the side edge offset amount of the steel strip 3 may be acquired by the width detector 4 as the offset parameter.
Preferably, the offset curve is plotted according to the acquired offset parameter of the steel strip 3, as shown by the solid line in fig. 2; setting a value period, in this embodiment, the value period is 250ms, and taking an average value of each point on the offset curve in the value period as an offset parameter in the value period. Namely, the steel strip 3 is divided into a plurality of detection sections, the length of each detection section is a value period and the moving speed of the steel strip 3, namely the moving distance of the steel strip 3 in 250ms, the average offset of the central line or the side edge of the whole detection section is taken as an offset parameter, and the detection section is adjusted to move corresponding offset parameters to the direction of the deviation of the detection section by the corresponding side guide plate 1. If the detection section deviates to the left, adjusting the side guide plate 1 on the left to move to the left by corresponding deviation parameters; if the detection section deviates to the right, the side guide plate 1 on the right is adjusted to move to the right by the corresponding deviation parameter. It is of course also possible to adjust the side guides 1 on both sides simultaneously by the corresponding offset parameter in the direction of deflection of the detection section. The purpose is to reduce the extrusion force between the steel strip and the side guide plate, thereby reducing the edge damage of the steel strip in the coiling process. The advantage of cutting apart into a plurality of detection sections with steel band 3 is, under the prerequisite of guaranteeing effectively to reduce the steel band and coil the limit damage of process, reduces the regulating frequency of side guide 1 to reduce the shake of side guide 1.
An adjustment threshold value can also be set, the difference value between the current offset parameter of the steel belt 3 and the offset parameter when the side guide plate 1 is adjusted last time is calculated, when the absolute value of the difference value is smaller than the adjustment threshold value, the position of the side guide plate 1 is not adjusted, and the position of the side guide plate 1 is not adjusted, so that the adjustment frequency of the side guide plate 1 can be further reduced, and the jitter of the side guide plate 1 is further reduced.
Determining delay time according to the moving speed of the steel belt 3 and the distance between the position detection point and the side guide plate 1, wherein the position detection point is the position for obtaining the offset parameter of the steel belt 3, the delay time = the distance between the position detection point and the side guide plate 1/the moving speed of the steel belt 3, and adjusting the position of the side guide plate 1 after the delay time according to the current offset parameter. Namely, the offset parameter of the current steel belt 3 detection section is recorded, after the delay time, the steel belt 3 detection section just moves to the side guide plate 1, and the position of the side guide plate 1 is adjusted according to the offset parameter.
The utility model provides a reduce controlling means that process limit portion was coiled to steel band damages, includes conveyer belt 2, and the both sides of conveyer belt 2 are equipped with side guide 1 respectively, and the front end of side guide 1 is equipped with the backplate 6 that is the horn mouth structure. The width detection device comprises side guide plates 1, a controller and a width detector 4, wherein the outer sides of the side guide plates 1 are connected with a hydraulic cylinder 5, the hydraulic cylinder 5 is provided with a displacement sensor, the width detector 4 is installed on a conveying belt 2 at the upper streams of the side guide plates 1 at two sides, and the controller is electrically connected with the displacement sensor, the hydraulic cylinder 5 and the width detector 4;
the controller obtains the offset parameters of the steel belt 3 on the conveying belt 2 at the upstream of the side guide plates 1 at the two sides through the width detector 4, and controls the hydraulic cylinder 5 to work according to the control method for reducing the edge damage in the steel belt coiling process.
The above is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that several variations and modifications can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (6)
1. The control method for reducing edge damage in the steel strip coiling process is characterized by obtaining offset parameters of a steel strip (3) on a conveying belt (2) at the upstream of side guide plates (1) on two sides, and adjusting the position of the side guide plate (1) deflected by the steel strip (3) according to the offset parameters so as to reduce extrusion force between the steel strip (3) and the side guide plate (1).
2. A control method for reducing edge damage in a steel strip coiling process according to claim 1, characterized in that the offset of the centre line or the offset of the side edges of the steel strip (3) is obtained as the offset parameter.
3. A control method for reducing edge damage in a steel strip coiling process according to claim 1 or 2, characterized by drawing an offset curve according to the obtained offset parameters of the steel strip (3);
setting a value period, and taking the average value of each point on the offset curve in the value period as an offset parameter in the value period.
4. A control method for reducing edge damage in a steel strip coiling process according to claim 3, characterized in that a delay time is determined according to the moving speed of the steel strip (3) and the distance between the position detection point and the side guide plate (1), and the position of the side guide plate (1) is adjusted after the delay time according to the current offset parameters.
5. A control method for reducing edge damage in a steel strip coiling process according to claim 1, characterized in that the deviation parameters of the steel strip (3) are obtained by means of a width detector (4).
6. The control device for reducing edge damage in the steel strip coiling process comprises a conveying belt (2), wherein two sides of the conveying belt (2) are respectively provided with a side guide plate (1), and the control device is characterized by further comprising a controller and a width detector (4), wherein the outer side of each side guide plate (1) is connected with a hydraulic cylinder (5), each hydraulic cylinder (5) is provided with a displacement sensor, each width detector (4) is installed on the conveying belt (2) at the upper streams of the side guide plates (1) at the two sides, and the controller is electrically connected with the displacement sensors, the hydraulic cylinders (5) and the width detectors (4);
the controller obtains the offset parameters of the steel strip (3) on the conveying belt (2) at the upstream of the side guide plates (1) at two sides through the width detector (4), and controls the hydraulic cylinder (5) to work according to the control method for reducing the edge damage in the steel strip coiling process, which is disclosed by any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211257599.8A CN115415323A (en) | 2022-10-14 | 2022-10-14 | Control method and device for reducing edge damage in steel strip coiling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211257599.8A CN115415323A (en) | 2022-10-14 | 2022-10-14 | Control method and device for reducing edge damage in steel strip coiling process |
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| Publication Number | Publication Date |
|---|---|
| CN115415323A true CN115415323A (en) | 2022-12-02 |
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|---|---|---|---|
| CN202211257599.8A Pending CN115415323A (en) | 2022-10-14 | 2022-10-14 | Control method and device for reducing edge damage in steel strip coiling process |
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|---|---|
| CN (1) | CN115415323A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0871646A (en) * | 1994-09-07 | 1996-03-19 | Nkk Corp | Meandering correcting equipment of continuous steel strip |
| JP2004136349A (en) * | 2002-10-18 | 2004-05-13 | Nisshin Steel Co Ltd | Sheet thickness control device |
| CN101658863A (en) * | 2008-08-29 | 2010-03-03 | 中冶赛迪工程技术股份有限公司 | Compensation method of seamless steel pipe three-roll mill |
| CN106269994A (en) * | 2015-05-27 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of hot continuous rolling plate rolling side guide control method |
| CN106311752A (en) * | 2015-06-19 | 2017-01-11 | 宝山钢铁股份有限公司 | Control method and system for improving curled edge loss caused by wave shape of finish-rolled strip steel |
| CN110639961A (en) * | 2018-06-27 | 2020-01-03 | 宝山钢铁股份有限公司 | Control method for deviation of rolling center line of cold continuous rolling strip steel |
| CN113548520A (en) * | 2021-06-30 | 2021-10-26 | 武汉钢铁有限公司 | Self-adaptive control method and system for edge of coiled material |
| CN114522985A (en) * | 2022-04-13 | 2022-05-24 | 东莞海裕百特智能装备有限公司 | Roller rolling control method, system and computer readable storage medium |
-
2022
- 2022-10-14 CN CN202211257599.8A patent/CN115415323A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0871646A (en) * | 1994-09-07 | 1996-03-19 | Nkk Corp | Meandering correcting equipment of continuous steel strip |
| JP2004136349A (en) * | 2002-10-18 | 2004-05-13 | Nisshin Steel Co Ltd | Sheet thickness control device |
| CN101658863A (en) * | 2008-08-29 | 2010-03-03 | 中冶赛迪工程技术股份有限公司 | Compensation method of seamless steel pipe three-roll mill |
| CN106269994A (en) * | 2015-05-27 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of hot continuous rolling plate rolling side guide control method |
| CN106311752A (en) * | 2015-06-19 | 2017-01-11 | 宝山钢铁股份有限公司 | Control method and system for improving curled edge loss caused by wave shape of finish-rolled strip steel |
| CN110639961A (en) * | 2018-06-27 | 2020-01-03 | 宝山钢铁股份有限公司 | Control method for deviation of rolling center line of cold continuous rolling strip steel |
| CN113548520A (en) * | 2021-06-30 | 2021-10-26 | 武汉钢铁有限公司 | Self-adaptive control method and system for edge of coiled material |
| CN114522985A (en) * | 2022-04-13 | 2022-05-24 | 东莞海裕百特智能装备有限公司 | Roller rolling control method, system and computer readable storage medium |
Non-Patent Citations (1)
| Title |
|---|
| 唐谋凤: "现代带钢冷连轧机的自动化", 31 August 1995, 冶金工业出版社, pages: 216 * |
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