CN114453440A - Strip steel threading deviation correcting method and equipment - Google Patents
Strip steel threading deviation correcting method and equipment Download PDFInfo
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- CN114453440A CN114453440A CN202210037006.0A CN202210037006A CN114453440A CN 114453440 A CN114453440 A CN 114453440A CN 202210037006 A CN202210037006 A CN 202210037006A CN 114453440 A CN114453440 A CN 114453440A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 143
- 239000010959 steel Substances 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 238000001514 detection method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
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- 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
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- 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
- B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
The invention relates to a deviation correcting method and equipment for strip steel threading, which realize deviation correction in the process of strip steel transmission through the friction difference of strip steel at two sides, can not cause extrusion deformation to the strip steel in the deviation correcting process, have good deviation correcting effect and are suitable for various strip steel production lines.
Description
Technical Field
The invention relates to the technical field of strip steel processing, in particular to a strip steel threading automatic deviation rectifying method and equipment, which can be applied to various strip steel production lines.
Background
The strip threading and deviation phenomena often occur on a strip steel production line, the problems of strip threading and blocking, misalignment of the inner ring and the outer ring during coiling and the like are easily caused after deviation, and the production line speed and the product quality are seriously influenced. The centering equipment commonly used in the threading process is a vertical side guide roller, but the vertical side guide often extrudes and deforms the strip steel in the process of close centering, so that the deviation rectifying effect is poor.
Disclosure of Invention
The invention aims to provide a deviation correcting method for strip steel threading, which can not cause extrusion deformation to strip steel in the deviation correcting process.
The specific scheme is as follows:
a strip steel threading deviation rectifying method is characterized in that a first friction force Fa and a second friction force Fb are applied to strip steel in the strip steel conveying process, and the first friction force Fa and the second friction force Fb are changed by the pressure change of a driven roller acting on the strip steel;
the two sides of the strip steel in the width direction are respectively defined as a transmission side and an operation side, wherein the position of the first friction force Fa acting on the strip steel is closer to the transmission side relative to the second friction force Fb, the position of the second friction force Fb acting on the strip steel is closer to the operation side relative to the first friction force Fa, and the first friction force Fa and the second friction force Fb can generate friction difference on the two sides of the strip steel, so that deviation rectifying torque is formed on the transmitted strip steel, and the deviation rectification of the strip steel is realized;
when Fa is larger than Fb, generating torque which deviates to the direction of the operation side, and deviating the strip steel to the operation side;
when Fa is equal to Fb, no torque is generated, and the strip steel does not deviate;
when Fa is less than Fb, a torque which deviates towards the transmission side is generated, and the strip steel deviates towards the transmission side.
The invention also provides a strip steel threading and deviation rectifying device which is arranged on a strip steel threading channel and comprises a deviation rectifying lower roller, a first deviation rectifying upper roller, a second deviation rectifying upper roller and a motor, wherein the first deviation rectifying upper roller and the second deviation rectifying upper roller are positioned right above the deviation rectifying lower roller, and a gap for strip steel to pass through is formed between the first deviation rectifying upper roller and the deviation rectifying lower roller; the lower deviation correcting roller is a driving roller which is driven by a motor to rotate, and the first upper deviation correcting roller and the second upper deviation correcting roller are driven rollers; the two sides of the width direction of the strip steel are respectively defined as a transmission side and an operation side, the first deviation rectifying upper roller is closer to the transmission side relative to the second deviation rectifying upper roller, the second deviation rectifying upper roller is closer to the operation side relative to the first deviation rectifying upper roller, the first deviation rectifying upper roller and the second deviation rectifying upper roller are also respectively connected with a first operating mechanism and a second operating mechanism, the first operating mechanism drives the first deviation rectifying upper roller to move towards or keep away from the deviation rectifying lower roller, the second operating mechanism drives the second deviation rectifying upper roller to move towards or keep away from the deviation rectifying lower roller, so that the pressure generated by the first deviation rectifying upper roller and the second deviation rectifying upper roller on the strip steel is respectively controlled, and then deviation rectifying torque is formed on the transmitted strip steel, and therefore deviation rectifying of the strip steel is realized.
Further, the first operating mechanism and the second operating mechanism are both hydraulic control systems.
The strip steel position detection unit is arranged on the outlet side of the lower deviation correction roller and can detect the deviation amount of the strip steel in the width direction, the detected strip steel deviation amount is fed back to the controller by the strip steel position detection unit, the controller calculates the obtained strip steel deviation amount and sends adjustment parameters to the first operating mechanism and/or the second operating mechanism according to the calculation result, and the first operating mechanism and/or the second operating mechanism adjust the pressure generated on the strip steel according to the adjustment parameters sent by the controller.
Further, the strip steel position detection unit is a position sensor, and the controller is a PLC controller.
Compared with the prior art, the band steel threading deviation rectifying method and the band steel threading deviation rectifying equipment provided by the invention have the following advantages: the deviation rectification method and the deviation rectification equipment for the strip steel threading realize deviation rectification in the strip steel transmission process through the friction difference of the strip steels on the two sides, do not cause extrusion deformation to the strip steel in the deviation rectification process, have good deviation rectification effect and are suitable for various strip steel production lines.
Drawings
FIG. 1 shows a top view of a strip threading deviation rectifying device.
FIG. 2 is a side view of the strip threading deviation correcting device in the strip width direction.
FIG. 3 shows a side view of the strip threading deviation correcting device in the length direction of the strip.
FIG. 4 shows a flow chart of the automatic deviation rectifying control of the strip steel threading deviation rectifying equipment.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
Example 1
The embodiment provides a deviation rectifying method for strip steel threading, which is characterized in that a first friction force Fa and a second friction force Fb are applied to strip steel in the strip steel conveying process, and the first friction force Fa and the second friction force Fb are changed by the pressure change of a driven roller acting on the strip steel.
The two sides of the strip steel in the width direction are respectively defined as a transmission side and an operation side, wherein the position of the first friction force Fa acting on the strip steel is closer to the transmission side relative to the second friction force Fb, the position of the second friction force Fb acting on the strip steel is closer to the operation side relative to the first friction force Fa, and the first friction force Fa and the second friction force Fb can generate friction difference on the two sides of the strip steel, so that a deviation rectifying torque is formed on the transmitted strip steel, and the purpose of rectifying the strip steel is achieved.
Specifically, referring to fig. 1, when Fa > Fb, a torque that is offset toward the operating side is generated, and the strip steel is offset toward the operating side;
when Fa is equal to Fb, no torque is generated, and the strip steel does not deviate;
when Fa is less than Fb, a torque which deviates towards the transmission side is generated, and the strip steel deviates towards the transmission side.
Referring to fig. 1 and 2, a strip 1 is transferred in a direction in which the strip is transferred in the forward direction in fig. 1, the left side of the strip is a driving side, and the right side of the strip is an operating side, and a deviation correcting mechanism generates a first frictional force Fa and a second frictional force Fb with respect to the strip 1.
The deviation rectifying mechanism in this embodiment includes a deviation rectifying lower roller 21, a first deviation rectifying upper roller 22, a second deviation rectifying upper roller 23 and a motor 24. Wherein, the lower deviation correcting roller 21 is a driving roller which is positioned below the strip steel 1 and is driven by a motor 24 to rotate; the first upper deviation correcting roller 22 and the second upper deviation correcting roller 23 are driven rollers, and the first upper deviation correcting roller 22 is positioned right above the lower deviation correcting roller 21 and is closer to the transmission side relative to the second upper deviation correcting roller 23; the second upper deviation correcting roller 23 is positioned right above the lower deviation correcting roller 21 and is closer to the operation side relative to the first upper deviation correcting roller 22; the first upper deviation rectifying roller 22 and the second upper deviation rectifying roller 23 are further connected with a first operating mechanism 31 and a second operating mechanism 32 respectively, the first operating mechanism 31 drives the first upper deviation rectifying roller 22 to move towards or away from the lower deviation rectifying roller 21, and the second operating mechanism 32 drives the second upper deviation rectifying roller 23 to move towards or away from the lower deviation rectifying roller 21 so as to control the pressure of the first upper deviation rectifying roller 22 and the second upper deviation rectifying roller 23 on the strip steel 1 respectively.
Assuming that the pressure of the first upper deviation correcting roller 22 on the strip steel 1 is F1; the pressure of the second upper deviation correcting roller 23 on the strip steel 1 is F2; the pressure stress between the strip steel at the two sides and the lower deviation correcting roller 21 is f1 and f2 respectively; the rolling friction coefficient of the strip steel and the lower deviation correcting roller 21 is mu, and the friction forces between the strip steel at two sides and the lower deviation correcting roller 21 are Fa and Fb respectively, then: Fa-F1 μ and Fb-F1 μ. The difference in friction between Fa and Fb creates a torque m on the strip. As shown in FIG. 1, when Fa < Fb, the torque m causes the strip to deviate toward the transmission side. Because the rolling friction coefficient mu between the strip steel and the lower deviation correcting roller 21 is a fixed value, the running direction of the strip steel can be changed by adjusting the pressure F1 and F2 generated by the strip steel of the first upper deviation correcting roller and the second upper deviation correcting roller, thereby realizing the deviation correction of the strip steel.
The deviation rectification method for the strip steel threading provided by the embodiment realizes deviation rectification in the strip steel transmission process through the friction difference of the strip steels on the two sides, does not cause extrusion deformation to the strip steel in the deviation rectification process, has good deviation rectification effect, and is suitable for various strip steel production lines.
Example 2
Referring to fig. 1-3, the embodiment provides a strip steel threading deviation rectifying device, which is disposed on a strip steel threading channel and includes a deviation rectifying lower roller 21, a first deviation rectifying upper roller 22, a second deviation rectifying upper roller 23 and a motor 24, wherein the first deviation rectifying upper roller 22 and the second deviation rectifying upper roller 23 are located right above the deviation rectifying lower roller 21, and a gap for the strip steel 1 to pass through is formed between the first deviation rectifying upper roller and the deviation rectifying lower roller 21.
The two sides of the strip steel in the width direction are respectively defined as a transmission side and an operation side, wherein the lower deviation correcting roller 21 is a driving roller, is positioned below the strip steel 1 and is driven by a motor 24 to rotate; the first upper deviation correcting roller 22 and the second upper deviation correcting roller 23 are driven rollers, and the first upper deviation correcting roller 22 is positioned right above the lower deviation correcting roller 21 and is closer to the transmission side relative to the second upper deviation correcting roller 23; the second upper deviation correcting roller 23 is positioned right above the lower deviation correcting roller 21 and is closer to the operation side relative to the first upper deviation correcting roller 22; the first upper deviation rectifying roller 22 and the second upper deviation rectifying roller 23 are further connected with a first operating mechanism 31 and a second operating mechanism 32 respectively, the first operating mechanism 31 drives the first upper deviation rectifying roller 22 to move towards or away from the lower deviation rectifying roller 21, and the second operating mechanism 32 drives the second upper deviation rectifying roller 23 to move towards or away from the lower deviation rectifying roller 21 so as to control the pressure of the first upper deviation rectifying roller 22 and the second upper deviation rectifying roller 23 on the strip steel 1 respectively.
Before the strip head of the strip steel enters the deviation rectifying device, the first deviation rectifying upper roller and the second deviation rectifying upper roller are in an opening position, after the strip head penetrates through the deviation rectifying device, the first deviation rectifying upper roller and the second deviation rectifying upper roller are pressed down to press the strip steel together with the deviation rectifying lower roller, and the deviation rectifying lower roller is driven by a motor to rotate and is conveyed forward together with the first deviation rectifying upper roller and the second deviation rectifying upper roller.
Assuming that the pressure of the first upper deviation correcting roller 22 on the strip steel 1 is F1; the pressure of the second upper deviation correcting roller 23 on the strip steel 1 is F2; the pressure stress between the strip steel at the two sides and the lower deviation correcting roller 21 is f1 and f2 respectively; the rolling friction coefficient of the strip steel and the lower deviation correcting roller 21 is mu, and the friction forces between the strip steel at two sides and the lower deviation correcting roller 21 are Fa and Fb respectively, then: Fa-F1 μ and Fb-F1 μ. The difference in friction between Fa and Fb creates a torque m on the strip. As shown in FIG. 1, when Fa < Fb, the torque m causes the strip to deviate toward the transmission side. Because the rolling friction coefficient mu between the strip steel and the lower deviation correcting roller 21 is a fixed value, the running direction of the strip steel can be changed by adjusting the pressure F1 and F2 generated by the strip steel of the first upper deviation correcting roller and the second upper deviation correcting roller, thereby realizing the deviation correction of the strip steel.
The deviation rectification device for the strip steel threading realizes deviation rectification in the strip steel transmission process through the friction difference of the strip steels on the two sides, does not cause extrusion deformation to the strip steels in the deviation rectification process, has good deviation rectification effect, and is suitable for various strip steel production lines.
The first operating mechanism and the second operating mechanism in the embodiment are preferably hydraulic control systems, and each hydraulic control system comprises a hydraulic cylinder which is in driving connection with the first deviation rectifying upper roller and the second deviation rectifying upper roller respectively, a hydraulic station which is connected with the hydraulic cylinder through a control pipeline, a control valve which is arranged on the control pipeline, and pressure gauges which are arranged on the hydraulic cylinder, and the hydraulic control system can be used for controlling the pressure exerted by the first deviation rectifying upper roller and the second deviation rectifying upper roller on the strip steel, so that different friction forces can be exerted on the strip steel on two sides to enable the strip steel to generate a torque m, and therefore deviation rectification of the strip steel is achieved.
In an embodiment, the strip threading deviation correcting apparatus shown in fig. 4 further includes an automatic deviation correcting control system, which includes a strip position detecting unit 4 and a controller. The strip steel position detection unit 4 can detect whether the strip steel deviates in the width direction and the amount of the deviation, the strip steel position detection unit 4 can be a position sensor in the prior art, and the controller can be a PLC programmable controller in the prior art.
The strip steel position detection unit 4 is arranged at the outlet side of the deviation correction roller, detects the strip steel position and feeds the detected position back to the controller, the controller sends adjustment parameters to the control execution mechanism after detecting the position deviation, and the pressing force of the pressing rollers at two sides is adjusted through the control valve and the hydraulic cylinder, so that the deviation correction torque is adjusted, and the automatic control of strip steel threading deviation correction is achieved.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A strip steel threading deviation correcting method is characterized in that: the band steel threading deviation correcting method is characterized in that a first friction force Fa and a second friction force Fb are applied to band steel in the band steel conveying process, and the first friction force Fa and the second friction force Fb are changed by the pressure change of a driven roller acting on the band steel; the two sides of the strip steel in the width direction are respectively defined as a transmission side and an operation side, wherein the position of the first friction force Fa acting on the strip steel is closer to the transmission side relative to the second friction force Fb, the position of the second friction force Fb acting on the strip steel is closer to the operation side relative to the first friction force Fa, and the first friction force Fa and the second friction force Fb can generate friction difference on the two sides of the strip steel, so that deviation rectifying torque is formed on the transmitted strip steel, and the deviation rectification of the strip steel is realized;
when Fa is larger than Fb, generating torque which deviates to the direction of the operation side, and deviating the strip steel to the operation side;
when Fa is equal to Fb, no torque is generated, and the strip steel does not deviate;
when Fa is less than Fb, a torque which deviates towards the transmission side is generated, and the strip steel deviates towards the transmission side.
2. The utility model provides a belted steel threading equipment of rectifying, lays on belted steel threading passageway, its characterized in that: the steel strip correcting device comprises a correcting lower roller, a first correcting upper roller, a second correcting upper roller and a motor, wherein the first correcting upper roller and the second correcting upper roller are positioned right above the correcting lower roller, and a gap for steel strips to pass through is formed between the first correcting upper roller and the correcting lower roller; the lower deviation correcting roller is a driving roller which is driven by a motor to rotate, and the first upper deviation correcting roller and the second upper deviation correcting roller are driven rollers; the two sides of the width direction of the strip steel are respectively defined as a transmission side and an operation side, the first deviation rectifying upper roller is closer to the transmission side relative to the second deviation rectifying upper roller, the second deviation rectifying upper roller is closer to the operation side relative to the first deviation rectifying upper roller, the first deviation rectifying upper roller and the second deviation rectifying upper roller are also respectively connected with a first operating mechanism and a second operating mechanism, the first operating mechanism drives the first deviation rectifying upper roller to move towards or keep away from the deviation rectifying lower roller, the second operating mechanism drives the second deviation rectifying upper roller to move towards or keep away from the deviation rectifying lower roller, so that the pressure generated by the first deviation rectifying upper roller and the second deviation rectifying upper roller on the strip steel is respectively controlled, and then deviation rectifying torque is formed on the transmitted strip steel, and therefore deviation rectifying of the strip steel is realized.
3. The strip steel threading deviation correcting device according to claim 2, characterized in that: the first operating mechanism and the second operating mechanism are both hydraulic control systems.
4. The strip steel threading deviation correcting device according to claim 2, characterized in that: the device comprises a first operating mechanism and a second operating mechanism, and is characterized by further comprising a strip steel position detection unit and a controller, wherein the strip steel position detection unit is arranged on the outlet side of the lower deviation correction roller and can detect the deviation amount of strip steel in the width direction, the strip steel position detection unit feeds the detected strip steel deviation amount back to the controller, the controller calculates the obtained strip steel deviation amount and sends adjustment parameters to the first operating mechanism and/or the second operating mechanism according to the calculation result, and the first operating mechanism and/or the second operating mechanism adjust the pressure generated on the strip steel according to the adjustment parameters sent by the controller.
5. The strip steel threading deviation correcting device according to claim 4, characterized in that: the strip steel position detection unit is a position sensor, and the controller is a PLC (programmable logic controller).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210037006.0A CN114453440A (en) | 2022-01-13 | 2022-01-13 | Strip steel threading deviation correcting method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210037006.0A CN114453440A (en) | 2022-01-13 | 2022-01-13 | Strip steel threading deviation correcting method and equipment |
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| CN114453440A true CN114453440A (en) | 2022-05-10 |
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| CN202210037006.0A Pending CN114453440A (en) | 2022-01-13 | 2022-01-13 | Strip steel threading deviation correcting method and equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07256327A (en) * | 1994-03-18 | 1995-10-09 | Sumitomo Metal Ind Ltd | Pinch roll for correcting meandering of strip, device and method for correcting meandering |
| JPH09216013A (en) * | 1996-02-07 | 1997-08-19 | Nippon Steel Corp | Method and device for stabilizing shape at the time of coiling hot rolled steel sheet |
| CN1702030A (en) * | 2005-04-27 | 2005-11-30 | 大连经济技术开发区排水管理有限公司 | Belt-shape moving body tension differential adjusting and correction method and device therefor |
| CN102648063A (en) * | 2009-09-15 | 2012-08-22 | 杰富意钢铁株式会社 | Slit band plate meandering preventing device |
| CN204107994U (en) * | 2014-09-18 | 2015-01-21 | 鞍钢蒂森克虏伯汽车钢有限公司 | A kind of band steel deviation correcting device |
| CN112063830A (en) * | 2020-09-22 | 2020-12-11 | 武汉钢铁有限公司 | Deviation correcting device and method for cold-rolled silicon steel strip continuous annealing production line |
-
2022
- 2022-01-13 CN CN202210037006.0A patent/CN114453440A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07256327A (en) * | 1994-03-18 | 1995-10-09 | Sumitomo Metal Ind Ltd | Pinch roll for correcting meandering of strip, device and method for correcting meandering |
| JPH09216013A (en) * | 1996-02-07 | 1997-08-19 | Nippon Steel Corp | Method and device for stabilizing shape at the time of coiling hot rolled steel sheet |
| CN1702030A (en) * | 2005-04-27 | 2005-11-30 | 大连经济技术开发区排水管理有限公司 | Belt-shape moving body tension differential adjusting and correction method and device therefor |
| CN102648063A (en) * | 2009-09-15 | 2012-08-22 | 杰富意钢铁株式会社 | Slit band plate meandering preventing device |
| CN204107994U (en) * | 2014-09-18 | 2015-01-21 | 鞍钢蒂森克虏伯汽车钢有限公司 | A kind of band steel deviation correcting device |
| CN112063830A (en) * | 2020-09-22 | 2020-12-11 | 武汉钢铁有限公司 | Deviation correcting device and method for cold-rolled silicon steel strip continuous annealing production line |
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