CN103203365A - Coiler side guide plate control method for preventing steel coils on hot rolling production line from staggering - Google Patents
Coiler side guide plate control method for preventing steel coils on hot rolling production line from staggering Download PDFInfo
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- CN103203365A CN103203365A CN2013100877926A CN201310087792A CN103203365A CN 103203365 A CN103203365 A CN 103203365A CN 2013100877926 A CN2013100877926 A CN 2013100877926A CN 201310087792 A CN201310087792 A CN 201310087792A CN 103203365 A CN103203365 A CN 103203365A
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- guide plate
- control
- side guide
- position control
- band steel
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Abstract
The invention relates to a coiler side guide plate control method for preventing steel coils on a hot rolling production line from staggering, and belongs to the technical field of metallurgical plate production process. The technical scheme includes that programming is changed in a PLC (programmable logic controller) for controlling a coiler side guide plate, a force control link is added into a side guide plate control logic of a position control side, the side guide plate of the position control side is switched to the force control link and presses strip steel after a coiler mandrel is loaded, and then positions are controlled. The coiler side guide plate control method has the advantages that the problem that a side guide plate of a position control side cannot press strip steel is effectively solved, tail staggering of the steel coils is prevented, compared with an improved side guide plate control mode, the coiler side guide plate control method enables the side guide plate of the position control side to automatically position the edge of the strip steel without manual intervention and is efficient, safe and reliable, owing to double-sided pressure control, the strip steel is more rapidly pressed as compared with traditional one-sided pressure control, scrolling of inner rings can be more effectively controlled, and as the problem of swing after pressing of the side guide plate is solved, the replacement cycle of a transmission mechanism for the side guide plate can be prolonged, the expense of spare parts is saved, and maintenance time is shortened.
Description
Technical field
The present invention relates to a kind of side guide plate of recoiling machine control method that prevents hot rolling line coil of strip staggered floor, belong to the metallurgical plate technical field of producing.
Background technology
At present, along with the continuous upgrading of CHINESE INDUSTRIES quality, client has higher requirement for the quality requirement of steel products.Hot-strip scroll quality not only influences product hierarchy, also affects the production of next procedure, and promoting coil of strip scroll quality is one of important measures of cost efficiency.The flipper guide control of coiling machine is one of principal element of coil of strip scroll quality, and the control flow brief introduction of background technology flipper guide is as follows: flipper guide has two, lays respectively at roller-way both sides, coiling machine porch.By the difference of control mode, two flipper guides are selected as pressure control side (being called for short power control side) and Position Control side (being called for short position control side) respectively.Before the band steel entered coiling machine, the flipper guide width was set in strip width and adds a preset value, is convenient to advance smoothly steel.Flipper guide is set to strip width when the band steel enters the coiling machine pinch roll, after setting is finished and coiling machine mandrel load signal arrives, the flipper guide of power control side enters pressure control mode, is pressed against the strip edge edge with certain pressure, the band steel is shifted onto the flipper guide place of position control side.And the flipper guide of position control side is in Position Control, keeps current position.In the ordinary course of things, when the band steel was close to the flipper guide of position control side, the scroll of coil of strip was good.But often go wrong in actual applications.Owing to long-term the use produces wearing and tearing or reason is installed, flipper guide can reverse band steel direction tilt when clamping band steel.So after power control side changed the power control over to, the flipper guide of power control side need promote the band steel more multiple spurs from pressing on the flipper guide of control side in place by the band steel.The band steel is applied with bigger tension force in coiling process, and flipper guide can not push it to the setting value that the position has just reached pressure, no longer promotes.After steel end had gone out finishing mill, the tension force on the band steel reduced, and the flipper guide of power control side can promote the band steel again, and this promotion will produce a staggered floor in scroll.Because stablizing, the flipper guide clamping of both sides can keep concordant on the scroll afterwards.The control mode of some improvement attempts to address this problem, and flipper guide is set to strip width and deducts an offset after the band steel enters pinch roll.This scheme can partly address this problem, but its shortcoming is the definite very difficult of offset, and it is along with strip width changes with the different of thickness.Too for a short time, then do not have an effect, position control side still can not the contact zones steel, and the too big then flipper guide of both sides is clamped the band steel in the Position Control mode, may cause limit damage quality problems, very the person may clamp the band steel because of flipper guide, and the band steel can't continue to enter coiling machine, causes piling steel.
Summary of the invention
The object of the invention provides a kind of side guide plate of recoiling machine control method that prevents hot rolling line coil of strip staggered floor, prevent coil of strip afterbody staggered floor, there is not manual intervention, the automatic positioning belt steel of the flipper guide marginal position of position control side, efficient and safe and reliable, save the spare part expense, reduce the repair time, solve the problems referred to above that exist in the background technology.
Technical scheme of the present invention is: a kind of side guide plate of recoiling machine control method that prevents hot rolling line coil of strip staggered floor, two flipper guides of coiling machine are respectively pressure control side and Position Control side, are called for short power control side and position control side respectively; By in side guide plate of recoiling machine control PLC, changing programming, add power control link in the flipper guide control logic of control side in place, the flipper guide of position control side changes power control link over to after the coiling machine mandrel loads, and makes it press against the band steel, changes Position Control then over to.
Step more specifically: before the band steel entered coiling machine, the control of two flipper guides was the same with the background technology mode, and its aperture is set in strip width and adds preset value; After the band steel enters the coiling machine pinch roll, two flipper guide apertures are set to strip width, after setting was finished, when the coiling machine mandrel loaded, two flipper guides entered the power control simultaneously, the flipper guide control mode of power control side is constant, the flipper guide of position control side presses to the band steel with a pressure set points, when its pressure feedback greater than setting value 80% and kept for 0.5 second, guarantee that it really touches the band steel after, change Position Control over to, keep current location.
As safeguard measure, the flipper guide of position control side is cancelled after keep-uping pressure and controlling the duration that reaches above-mentioned, can unrestrictedly not press to the band steel when pressure sensor loses efficacy to guarantee it, produces the heap steel.
The flipper guide of position control side can not reverse band steel direction move, otherwise the control of cancellation power, to guarantee the flipper guide direction of motion of position control side.That is to say: when the reverse band steel of the flipper guide direction of position control side moves, the control of cancellation power.
The main improvements of the present invention are embodied in following three aspects:
1, changes the flipper guide final position when take-up of background technology flipper guide control meta control side, adapt to the deflection that produces because of the flipper guide wearing and tearing automatically.Guarantee in the whole strip coiling process all clamping band steel of both sides flipper guide, can effectively prevent staggered floor.
2, the flipper guide control scheme that offset is arranged with improvement compares, and has cancelled flipper guide setting compensation value.After needn't changing flipper guide or conversion rolling specs at every turn, reset offset, automatically positioning belt steel marginal position, can not occur producing because offset is too small can not clamping band steel situation, also avoid occurring because offset is set accidents such as excessive, the strip edge portion wearing and tearing that flipper guide occurs with Position Control mode clamping band steel, heap steel.
3, after coiling machine advances steel, side flipper guide by traditional approach presses to being with steel to change both sides into simultaneously to being with steel to press with pressure control, flipper guide contact zones steel is faster, it is shorter that the band steel is in the time of no clamp position, coil of strip inner ring scroll is controlled better, and improves the scroll of inner ring on can be largely.Reduced the dependence of offside guide plate aperture accuracy, the wear allowance between offside guide plate and the transmission mechanism bearing pin is bigger, can prolong replacement cycle and the service life of flipper guide and its transmission mechanism, when saving manpower, machine, the spare part cost.
Advantage of the present invention and effect: solved position control side flipper guide well and can not press the problem of being with steel, prevented coil of strip afterbody staggered floor; Compare with the flipper guide control mode of improvement, do not have manual intervention, the automatic positioning belt steel of the flipper guide marginal position of position control side, efficient and safe and reliable; Because bilateral all is pressure control, more traditional one-sided pressure control is pressed faster, can control the scroll of inner ring better; Press the problem of back swing owing to this scheme has solved flipper guide, so the transmission mechanism replacement cycle of flipper guide can prolong saving spare part expense, minimizing repair time.
Description of drawings
Fig. 1 is the flipper guide pressure feedback figure of background technology position control side;
Fig. 2 is the flipper guide pressure feedback figure of embodiment of the invention position control side.
The specific embodiment
The present invention will be further described by the following examples.
A kind of side guide plate of recoiling machine control method that prevents hot rolling line coil of strip staggered floor, two flipper guides of coiling machine are respectively pressure control side and Position Control side, are called for short power control side and position control side respectively; By in side guide plate of recoiling machine control PLC, changing programming, add power control link in the flipper guide control logic of control side in place, the flipper guide of position control side changes power control link over to after the coiling machine mandrel loads, and makes it press against the band steel, changes Position Control then over to.
Before the band steel entered coiling machine, the control of two flipper guides was the same with the background technology mode, and its aperture is set in strip width and adds preset value; After the band steel enters the coiling machine pinch roll, two flipper guide apertures are set to strip width, after setting was finished, when the coiling machine mandrel loaded, two flipper guides entered the power control simultaneously, the flipper guide of power control side is still controlled according to the background technology mode, the flipper guide of position control side presses to the band steel with a pressure set points, when its pressure feedback greater than setting value 80% and kept for 0.5 second, guarantee that it really touches the band steel after, change Position Control over to, keep current location.As safeguard measure, the flipper guide of position control side is cancelled after keep-uping pressure and controlling the duration that reaches above-mentioned, can unrestrictedly not press to the band steel when pressure sensor loses efficacy to guarantee it, produces the heap steel.The flipper guide of position control side can not reverse band steel direction move, otherwise the control of cancellation power, to guarantee the flipper guide direction of motion of position control side.
In the present embodiment, with reference to accompanying drawing 2, the pressure feedback (L_D3S_OSFCFBK) of the flipper guide (OS fore side) of position control side; With background technology relatively, with reference to accompanying drawing 1, occur early and stable, the flipper guide clamping action of position control side is effectively stable.
Claims (4)
1. a side guide plate of recoiling machine control method that prevents hot rolling line coil of strip staggered floor is characterized in that two flipper guides of coiling machine are respectively pressure control side and Position Control side, is called for short power control side and position control side respectively; By in side guide plate of recoiling machine control PLC, changing programming, add power control link in the flipper guide control logic of control side in place, the flipper guide of position control side changes power control link over to after the coiling machine mandrel loads, and makes it press against the band steel, changes Position Control then over to.
2. a kind of side guide plate of recoiling machine control method that prevents hot rolling line coil of strip staggered floor according to claim 1 is characterized in that step more specifically: before the band steel entered coiling machine, the aperture of two flipper guides was set in strip width and adds preset value; After the band steel enters the coiling machine pinch roll, two flipper guide apertures are set to strip width, after setting was finished, when the coiling machine mandrel loaded, two flipper guides entered the power control simultaneously, the flipper guide control mode of power control side is constant, the flipper guide of position control side presses to the band steel with a pressure set points, when its pressure feedback greater than setting value 80% and kept for 0.5 second, guarantee that it really touches the band steel after, change Position Control over to, keep current location.
3. a kind of side guide plate of recoiling machine control method that prevents hot rolling line coil of strip staggered floor according to claim 2, it is characterized in that: the flipper guide of position control side is cancelled after keep-uping pressure and controlling the duration that reaches above-mentioned, can unrestrictedly not press to the band steel when pressure sensor loses efficacy to guarantee it.
4. according to claim 2 or 3 described a kind of side guide plate of recoiling machine control methods that prevent hot rolling line coil of strip staggered floor, it is characterized in that: when the reverse band steel of the flipper guide direction of position control side moves, the control of cancellation power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100877926A CN103203365A (en) | 2013-03-19 | 2013-03-19 | Coiler side guide plate control method for preventing steel coils on hot rolling production line from staggering |
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| CN2013100877926A CN103203365A (en) | 2013-03-19 | 2013-03-19 | Coiler side guide plate control method for preventing steel coils on hot rolling production line from staggering |
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| CN103203365A true CN103203365A (en) | 2013-07-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714629A (en) * | 2018-06-13 | 2018-10-30 | 武汉钢铁有限公司 | A kind of hot continuous rolling plate rolling side guide pressure position integrated control method |
| CN109158444A (en) * | 2018-08-24 | 2019-01-08 | 首钢智新迁安电磁材料有限公司 | A method of avoid rewinding unit from batching staggered floor |
| CN112570468A (en) * | 2020-10-27 | 2021-03-30 | 邯郸钢铁集团有限责任公司 | Control method for preventing steel coil from being staggered by clamping and feeding roller of coiling machine of hot rolling production line |
| CN112692057A (en) * | 2021-01-07 | 2021-04-23 | 唐山燕山钢铁有限公司 | Production method for controlling edge black line of non-oriented silicon steel |
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| JP2001179301A (en) * | 1999-12-27 | 2001-07-03 | Kawasaki Steel Corp | Method and apparatus for centering hot slab |
| CN101224471A (en) * | 2007-01-18 | 2008-07-23 | 宝山钢铁股份有限公司 | Controlling method of rough rolling breakdown bar camber |
| CN201175735Y (en) * | 2008-03-14 | 2009-01-07 | 上海西重所重型机械成套有限公司 | Hot rolled steel plate rolling side guide drive and synchronization device |
| JP2010172279A (en) * | 2009-01-30 | 2010-08-12 | Eguchi Menki Seisakusho:Kk | Method and apparatus for rolling-up noodle strip |
| CN102896180A (en) * | 2011-07-29 | 2013-01-30 | 上海梅山钢铁股份有限公司 | Control method of hot-rolling rolled side guide plate for improving hot-rolling roll shape quality |
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2013
- 2013-03-19 CN CN2013100877926A patent/CN103203365A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001179301A (en) * | 1999-12-27 | 2001-07-03 | Kawasaki Steel Corp | Method and apparatus for centering hot slab |
| CN101224471A (en) * | 2007-01-18 | 2008-07-23 | 宝山钢铁股份有限公司 | Controlling method of rough rolling breakdown bar camber |
| CN201175735Y (en) * | 2008-03-14 | 2009-01-07 | 上海西重所重型机械成套有限公司 | Hot rolled steel plate rolling side guide drive and synchronization device |
| JP2010172279A (en) * | 2009-01-30 | 2010-08-12 | Eguchi Menki Seisakusho:Kk | Method and apparatus for rolling-up noodle strip |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108714629A (en) * | 2018-06-13 | 2018-10-30 | 武汉钢铁有限公司 | A kind of hot continuous rolling plate rolling side guide pressure position integrated control method |
| CN109158444A (en) * | 2018-08-24 | 2019-01-08 | 首钢智新迁安电磁材料有限公司 | A method of avoid rewinding unit from batching staggered floor |
| CN109158444B (en) * | 2018-08-24 | 2020-03-20 | 首钢智新迁安电磁材料有限公司 | Method for avoiding coiling staggered layers of recoiling unit |
| CN112570468A (en) * | 2020-10-27 | 2021-03-30 | 邯郸钢铁集团有限责任公司 | Control method for preventing steel coil from being staggered by clamping and feeding roller of coiling machine of hot rolling production line |
| CN112692057A (en) * | 2021-01-07 | 2021-04-23 | 唐山燕山钢铁有限公司 | Production method for controlling edge black line of non-oriented silicon steel |
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Application publication date: 20130717 |