CN101722195B - Device and method for maintaining stable operation of strip steel for cold-rolled strip steel production unit - Google Patents
Device and method for maintaining stable operation of strip steel for cold-rolled strip steel production unit Download PDFInfo
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- CN101722195B CN101722195B CN2009102523756A CN200910252375A CN101722195B CN 101722195 B CN101722195 B CN 101722195B CN 2009102523756 A CN2009102523756 A CN 2009102523756A CN 200910252375 A CN200910252375 A CN 200910252375A CN 101722195 B CN101722195 B CN 101722195B
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Abstract
The invention relates to a device and a method for maintaining stable operation of strip steel for a cold-rolled strip steel production unit. The method guarantees the stable operation of the strip steel by tension control, prevents the strip steel from torsion and shake by tension of the strip steel, and prevents the strip steel from deviation by adopting an automatic deviation-rectifying control device for the strip steel. The device comprises a decoiler (1) and a coiler (2) which are respectively arranged at the head and the tail of the unit. A high-precision coder is arranged on the decoiler and the coiler. A tension roll (5) is arranged in the unit, and comprises a left roll and a right roll with the same height. The elevation of the left roll and the right roll is respectively higher than that of an inlet pinch roll (4) and an outlet pinch roll (6). A wrap angle is respectively formed at the inlet and the outlet of the tension roll, so that the strip steel is tensioned. An automatic centering and edge-aligning deviation-rectifying control device for the strip steel is respectively arranged on the rear of the decoiler and in front of the coiler. The device and the method can eliminate the problem that the production efficiency is not high due to the torsion, shake and deviation during the operation of the strip steel, and meet the requirements of high stability and high precision of the strip steel on a laser scoring machine unit.
Description
Technical field
The present invention relates to the cold rolled strip steel production field, be specifically related to a kind of device and method of maintaining stable operation of strip steel for cold-rolled strip steel production unit.
Background technology
In cold rolled strip steel production unit band steel running, problems such as the design defect of local devices, structural damage or the system failure all can be brought out unit vibration in various degree.This unstability will make the band steel phenomenon of rocking and shaking occur; Some reason can make the band steel deviation phenomenon occur as low, the installation deviation of the accuracy of manufacture of rotation roller on belt plate shape and the equipment thereof.For guaranteeing the production efficiency and the product percent of pass of unit, need the stable operation of retainer belt steel.
In recent years, along with the fast development of China's energy construction, the high-effect transformer of energy savings had begun to use in power industry, and became development trend from now on.Orientation silicon steel mainly as the core material of transformer and other electrical equipment, requires its magnetic flux density height and iron loss low.At present, the technology that laser scored processing reduces iron loss being carried out on the orientation silicon steel surface reaches its maturity.On the laser scored unit of orientation silicon steel, the required precision of laser scanning spacing and width of nick is also very high, ends as the sound of laser scanning spacing that error requirements is controlled under the state ± 0.1mm, and the line of weakness degree of depth requires in 1～30 μ m.For this type of unit, shake and the sideslip of band steel in running all is unallowed.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of device and method of maintaining stable operation of strip steel for cold-rolled strip steel production unit, so that solve the band steel that exists in the prior art rocking in running, shake and sideslip defective.
The present invention solves its technical problem and adopts following technical scheme:
The method of maintaining stable operation of strip steel for cold-rolled strip steel production unit provided by the invention, its step comprises:
The first step, set about guaranteeing the stable operation of band steel from tension force control: establish uncoiler at the unit head, the unit afterbody is established coiling machine, and uncoiler and coiling machine are established high-precision encoder;
In second step, prevent to be with steel to rock, shake: set up idler roller in unit, idler roller comprises contour left roller and right roller, the roll surface absolute altitude of idler roller is higher than the band steel by line, and during the unit operate as normal, the band steel forms cornerite at the entrance and exit of idler roller, the tension band steel makes the stable operation of band steel;
In the 3rd step, prevent strip running deviation: set up the CPC device behind processing uncoiler, the CPC device is a band steel automatic centering correction control device, sets up the EPC device before the unit coiling machine, and the EPC device is the automatic opposite side correction of a band steel control device, prevents strip running deviation in this.
The device of maintaining stable operation of strip steel for cold-rolled strip steel production unit provided by the invention, its structure is: comprise uncoiler and coiling machine, they are contained in unit head, afterbody respectively, are provided with high-precision encoder on uncoiling, coiling machine.Set up idler roller in unit, this idler roller comprises contour left roller and right roller, and left roller absolute altitude is higher than the absolute altitude of entrance pinch roll, and right roller absolute altitude is higher than the absolute altitude that exports pinch roll, forms cornerite respectively at the entrance and exit of idler roller, makes the tensioning of band steel; The CPC device is installed at rear portion at uncoiler, sets up the EPC device before the coiling machine, prevents strip running deviation.
The present invention compared with prior art has following main advantage:
The stable operation of band steel when having guaranteed the work of cold-strip steel unit, the unit production efficiency that rock when eliminating because of the operation of band steel, shake and sideslip causes is not high, has improved unit productivity ratio, qualification rate.
In laser scored unit, the idler roller zone can be eliminated rocking of band steel fully and be shaken, and satisfies high stability, the high-precision requirement of laser scored unit to the band steel.
Description of drawings
Fig. 1 is a kind of example unit of the present invention layout drawing.
Fig. 2 is the idler roller position view.
Among the figure: 1. uncoiler; 2.CPC device; 3. entrance guide plate; 4. entrance pinch roll; 5. idler roller; 6. outlet pinch roll; 7. centralising device; 8. cut and cut; 9. slewing rollers; 10. delivery guide; 11.EPC device; 12. coiling machine; 13. left roller; 14. right roller.
The specific embodiment
The method of maintaining stable operation of strip steel for cold-rolled strip steel production unit provided by the invention, its step comprises:
The first step, set about guaranteeing the stable operation of band steel from tension force control: establish uncoiler at the unit head, the unit afterbody is established coiling machine, and uncoiler and coiling machine are established high-precision encoder;
In second step, prevent to be with steel to rock, shake: set up idler roller in unit, idler roller comprises contour left roller and right roller, the roll surface absolute altitude of idler roller is higher than the band steel by line, and during the unit operate as normal, the band steel forms cornerite at the entrance and exit of idler roller, the tension band steel makes the stable operation of band steel;
In the 3rd step, prevent strip running deviation: set up the CPC device behind processing uncoiler, the CPC device is a band steel automatic centering correction control device; Set up the EPC device before the unit coiling machine, the EPC device is the automatic opposite side correction of a band steel control device, prevents strip running deviation in this.
The device of maintaining stable operation of strip steel for cold-rolled strip steel production unit provided by the invention, its structure be as depicted in figs. 1 and 2: comprise uncoiler 1 and coiling machine 12, they are contained in unit head, afterbody respectively.On uncoiling, coiling machine, be provided with high-precision encoder; In unit, set up idler roller 5, this tension unit comprises contour left roller 13 and right roller 14, and left roller 13 absolute altitudes are higher than the absolute altitude of entrance pinch roll 4, and right roller 14 absolute altitudes are higher than the absolute altitude that exports pinch roll 6, entrance and exit at idler roller forms cornerite respectively, makes the tensioning of band steel.CPC device 2 is installed at rear portion at uncoiler 1, sets up EPC device 11 before the coiling machine, prevents strip running deviation.
Described CPC device 2 is that closed loop follows the tracks of regulating system, and this device can adopt German EMG company product.During production, CPC device 2 is measured the change in location at the strip center of advancing continuously, after detecting deviation, deviation signal is imported the strip controlled adjuster, and export to servo valve after handling, the hydraulic cylinder that servo valve drives uncoiler 1 moves uncoiler 1, gets back on the predetermined unit center line with the strip of adjusting sideslip, reaches the purpose of strip automatic centering.
Described EPC device 11 is that closed loop follows the tracks of regulating system, and this device can adopt the automatic opposite side correction of the band steel control device of German EMG company.During production, EPC device 11 is measured the change in location at the strip edge of advancing continuously, and with strip marginal position deviation signal input strip controlled adjuster, export to servo valve after the processing, servo valve drives the hydraulic cylinder that links to each other with coiling machine 12 and makes coiling machine 12 mobile tracking forward (FWD) positions, and strip is batched exactly.
Described high-precision encoder is for adopting the import encoder, and this encoder can adopt Ku Baile 5000 types.Utilize its feedback speed signal controlling uncoiler 1 and coiling machine 12 torques, and then unit is carried out tension force control.
The device of maintaining stable operation of strip steel for cold-rolled strip steel production unit provided by the invention, its course of work is:
Crossing process: the band steel by uncoiler 1 uncoiling, via entrance guide plate 3, to entrance pinch roll 4 (detection take the lead through after, top roll is depressed; The lower roll transmission), arrive idler roller 5 (detection take the lead through after), then through outlet pinch roll 6 (detection take the lead through after, top roll is depressed; The lower roll transmission), arrive centralising device 7, the mechanical centering of taking the lead (function left soon by the centralising device band); Be with at last that steel cuts 8 via cutting, slewing rollers 9, delivery guide 10 deliver to coiling machine 12, after coiling machine 12 clamps the band steel, and tension band steel (top roll that exports pinch roll 6 simultaneously lifts), wear band and finish.
Operate as normal: after wearing band and finishing, uncoiler 1 quickens, and the top roll of entrance pinch roll 4 lifts, and CPC device 2 and EPC device 11 are devoted oneself to work simultaneously, and unit begins raising speed to operating rate, and keeps constant speed (± 0.2/min) work.
The whipping stage: when a winding steel has been worked when moving to afterbody, the unit reduction of speed, the top roll of entrance pinch roll 4 is depressed, and the top roll of outlet pinch roll 6 is depressed.Unit moves (maintenance constant speed) with the whipping velocity-stabilization, finishes until coiling machine 12 and batches.
Claims (2)
1. the method for a maintaining stable operation of strip steel for cold-rolled strip steel production unit is characterized in that the step of this method comprises:
The first step, set about guaranteeing the stable operation of band steel from tension force control: establish uncoiler at the unit head, the unit afterbody is established coiling machine, and uncoiler and coiling machine are established high-precision encoder;
In second step, prevent to be with steel to rock, shake: set up idler roller in unit, idler roller comprises contour left roller and right roller, the roll surface absolute altitude of idler roller is higher than the band steel by line, and during the unit operate as normal, the band steel forms cornerite at the entrance and exit of idler roller, the tension band steel makes the stable operation of band steel;
In the 3rd step, prevent strip running deviation: set up the CPC device behind processing uncoiler, the CPC device is a band steel automatic centering correction control device, sets up the EPC device before the unit coiling machine, and the EPC device is the automatic opposite side correction of a band steel control device, prevents strip running deviation in this; Described CPC device (2) is followed the tracks of regulating system for closed loop; During production, the CPC device is measured the change in location at the band steel center of advancing continuously, after detecting deviation, with deviation signal input tape steel controlled adjuster, by exporting to servo valve after this adjuster processing, the hydraulic cylinder that servo valve drives uncoiler (1) moves uncoiler, gets back on the predetermined unit center line with the band steel of adjusting sideslip, reaches the purpose of strip automatic centering; Described EPC device (11) is followed the tracks of regulating system for closed loop; During production, the EPC device is measured the change in location of the strip edge edge of advancing continuously, and with strip edge edge position error signal input tape steel controlled adjuster, by exporting to servo valve after this adjuster processing, servo valve drives the hydraulic cylinder that links to each other with coiling machine (12) and makes coiling machine mobile tracking forward (FWD) position, and the band steel is batched exactly.
2. the method for maintaining stable operation of strip steel for cold-rolled strip steel production unit according to claim 1 is characterized in that high-precision encoder adopts the import encoder, and this import encoder is Ku Baile 5000 types; Utilize its feedback speed signal controlling uncoiler (1) and coiling machine (12) torque, and then unit is carried out tension force control.
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| CN2009102523756A CN101722195B (en) | 2009-11-27 | 2009-11-27 | Device and method for maintaining stable operation of strip steel for cold-rolled strip steel production unit |
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| CN2009102523756A CN101722195B (en) | 2009-11-27 | 2009-11-27 | Device and method for maintaining stable operation of strip steel for cold-rolled strip steel production unit |
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| CN101722195B true CN101722195B (en) | 2011-11-09 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102050342B (en) * | 2010-12-14 | 2013-07-17 | 中冶南方工程技术有限公司 | Strip steel conveying table |
| CN102179424B (en) * | 2011-03-03 | 2012-12-05 | 山西太钢不锈钢股份有限公司 | Flattening production process of stainless steel |
| CN103302136B (en) * | 2013-05-28 | 2015-05-27 | 首钢总公司 | Tension-establishing control system of uncoiling machine and method thereof |
| CN103753220B (en) * | 2014-01-08 | 2017-04-26 | 佛山宝钢不锈钢贸易有限公司 | Control system used for tail of coiler to adjust central line of coiler and using method of control system |
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| CN104525578B (en) * | 2014-12-27 | 2016-08-24 | 陆余圣 | A kind of rocking material retractable milling train and using method thereof |
| CN106925624B (en) * | 2015-12-29 | 2019-12-31 | 宝钢工程技术集团有限公司 | Deviation-correctable tension steering pinch roll for auxiliary coiling of strip steel and use method thereof |
| CN105728473B (en) * | 2016-04-25 | 2018-06-08 | 中冶南方工程技术有限公司 | A kind of control method for preventing strip sideslip in the first passage operation of rolling |
| CN107662018A (en) * | 2016-07-28 | 2018-02-06 | 宝山钢铁股份有限公司 | A kind of method for improving strip shearing width precision |
| CN106269921B (en) * | 2016-08-15 | 2018-09-28 | 山东亚盛重工股份有限公司 | A kind of uncoiling, pinches all-in-one machine at centering |
| CN106694623B (en) * | 2016-12-27 | 2018-08-07 | 振石集团东方特钢有限公司 | A kind of coiling machine EPC system correction control method |
| CN111744959B (en) * | 2020-07-08 | 2022-06-21 | 马鞍山钢铁股份有限公司 | Automatic control device and method for cold-rolled strip steel curled overflowing edges |
| CN113714309B (en) * | 2021-09-18 | 2023-05-02 | 北京首钢自动化信息技术有限公司 | Strip steel jitter eliminating device and eliminating method |
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| CN2666579Y (en) * | 2003-12-26 | 2004-12-29 | 朱惠兴 | Leveller for rolling mill |
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