CN103447353A - Control device and method of guide plate at front side of hot continuous rolling type wide flat steel reeling machine - Google Patents
Control device and method of guide plate at front side of hot continuous rolling type wide flat steel reeling machine Download PDFInfo
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- CN103447353A CN103447353A CN2013100074528A CN201310007452A CN103447353A CN 103447353 A CN103447353 A CN 103447353A CN 2013100074528 A CN2013100074528 A CN 2013100074528A CN 201310007452 A CN201310007452 A CN 201310007452A CN 103447353 A CN103447353 A CN 103447353A
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Abstract
The invention provides a control device and method of a guide plate at the front side of hot continuous rolling type wide flat steel reeling machine, aims to a hot continuous rolling production line of 3200mm over-wide strip steel, in which the guide plate is frequently broken by the huge winding tension through pulling in the reeling process, or the service life of the guide plate is greatly reduced because of over-large clamp force, a strip steel side part is folded, a product does not scroll because of undersize tension, so that the product degrades. The control device provided by the invention comprises side guide plates which have the same structures and are respectively arranged on an operation side and a driving side of an inlet roller bed of the reeling machine, wherein the side guide plates are respectively connected with a transverse shifting device, and the route of the transverse shifting device is 1125mm; the transverse shifting device comprises a group of pushing rods, each pushing rod is connected with a hydraulic cylinder, the pushing rods are connected through a simultaneous coupler, and a rod cavity and a piston cavity of the hydraulic cylinder are respectively provided with a pressure sensor. The control device provided by the invention is used for controlling the guide plate at the front side of the 3200mm wide flat steel reeling machine.
Description
Technical field
The present invention relates to a kind of control device and control method of hot continuous rolling wide flat steel guide plate at front side of recoiling machine, belong to hot continuous rolling production control technical field.
Background technology
Along with the fierceness day by day of hot-rolled coil competition, lower procedure proposes higher quality requirement to product, and the scroll quality of coils of hot-rolled steel becomes an important control index in production process.And the control method of flipper guide plays a part very key as important means controlling scroll.In the production process of hot continuous rolling because there is very large difference in the grasp to the plate rolling side guide control method, make the finished product scroll be difficult to be ensured reliably, and cause a lot of finished products to be demoted in sales process, especially the coil of strip of the large substance in ultra-large type broadband has brought more economic losses and downstream product to bring tremendous influence in the inconvenience of recovery rate and operation because scroll is bad.The improper service life of flipper guide and the hidden danger of accidental shutdown of also directly having influence on of method that plate rolling side guide is controlled, bring huge people and material resources loss to plant maintenance.Hot continuous rolling production line for 3200mm ultra broadband steel, the method that has adopted in process of production machinery to step up, because finished strip is not only wide but also thick, in coiling process, frequently cause guide plate to be drawn bad by huge coiling tension, perhaps, because the excessive guide plate that causes of clamping force significantly shortens service life, steel edge portion is folding; Also, because tension force is too small, the product scroll can't guarantee and cause product to be demoted.
Summary of the invention
The objective of the invention is to provide for the problem of above-mentioned existence a kind of control device and control method of hot continuous rolling wide flat steel guide plate at front side of recoiling machine, hot continuous rolling production for 3200mm ultra broadband steel is imported and clamping action, reduce replacement frequency and the equipment failure rate of guide plate, to reduce production and operation cost.
Above-mentioned purpose is achieved through the following technical solutions:
The control device of hot continuous rolling wide flat steel guide plate at front side of recoiling machine, comprise the fore side that is arranged on respectively the coiling machine inlet roller way that structure is identical and the flipper guide of transmission side, described flipper guide connects respectively Traverse Displacement Unit, the stroke of described Traverse Displacement Unit is 1125mm, described Traverse Displacement Unit comprises one group of push rod, each described push rod connecting fluid cylinder pressure, connect by synchronous coupling between described push rod, and pressure sensor is equipped with respectively in the He Sai chamber, bar chamber of described hydraulic cylinder.
The control device of described hot continuous rolling wide flat steel guide plate at front side of recoiling machine, described flipper guide comprises parallel-segment and tilting section, the distance between the parallel-segment of the parallel-segment of the flipper guide of fore side and the flipper guide of transmission side is 1150mm-3400mm.
The control device of described hot continuous rolling wide flat steel guide plate at front side of recoiling machine, described hydraulic cylinder adopts the hydraulic cylinder that range is 1160mm.
The control method of hot continuous rolling wide flat steel guide plate at front side of recoiling machine: the method comprises Position Control process and pressure control procedure, set the short stroke action between described Position Control process and described pressure control procedure, described Position Control process is before band steel approaching side guide plate, distance between the parallel-segment of the parallel-segment of the flipper guide of fore side and the flipper guide of transmission side is set as 3330mm, the thickness of working as with steel in described pressure control procedure is 6mm, when width is 3200mm, the gross pressure of flipper guide is set as 15-31KN, when the thickness with steel is 25.4mm, when width is 3200mm, the gross pressure of flipper guide is set as 39-78KN, when the thickness with steel is 22mm, when width is 3200mm, the gross pressure of flipper guide is set as 43-86KN.
The control method of described hot continuous rolling wide flat steel guide plate at front side of recoiling machine, described short stroke action comprises: when band steel approaching side guide plate, stroke is closed 30mm for the first time, when the reel of coiling machine is stung steel, stroke is closed 20mm for the second time, and when the reel of coiling machine is set up tension force, stroke is closed 5mm ~ 20mm for the third time.
Beneficial effect:
1. because 3200mm band steel is super wide, kind is partially thick, the present invention determines through test of many times, the opening degree of producing the offside guide plate for the hot continuous rolling of 3200mm ultra broadband steel has carried out rational design, the maximum open setting value wants large with the difference of maximum finished width with respect to conventional hot continuous rolling machine, main cause is to prevent major part or camber approaching side guide plate smoothly, adopt the hydraulic cylinder that range is 1160mm, and pressure sensor is housed respectively for pressure detecting and feedback in the He Sai chamber, bar chamber of hydraulic cylinder, control more accurate, timely.
2. due to employing permanent opening degree or because accidents such as the too small heap steel caused of opening degree, steel-fastening, plant equipment damages, the present invention sets 3 short stroke actions fast between position control procedure and pressure control procedure, distance between the parallel-segment of the flipper guide of the parallel-segment of the flipper guide of fore side and transmission side is adjusted according to the tension force situation of the operation with steel and coiler mandrel, control and reasonably regulate flipper guide and contact force with steel by pressure simultaneously, increase substantially the service life of flipper guide when effectively avoiding piling steel, steel-fastening.
3. the present invention meets the control of flipper guide in the finished width change procedure in all scopes of 3200mm continuous hot-rolling mill, and the scroll of finished product is had to good improvement effect.
The accompanying drawing explanation
Fig. 1, structural representation of the present invention.
The A-A profile of Fig. 2, Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.
Embodiment 1:
As shown in Figure 1: the control device of hot continuous rolling wide flat steel guide plate at front side of recoiling machine of the present invention, comprise the fore side that is arranged on respectively coiling machine inlet roller way 6 that structure is identical and the flipper guide 1 of transmission side, described flipper guide connects respectively Traverse Displacement Unit 2, the stroke of described Traverse Displacement Unit is 1125mm, described Traverse Displacement Unit comprises one group of push rod 3, each described push rod connecting fluid cylinder pressure 4, between described push rod, by synchronous coupling 5, connect, pressure sensor is equipped with respectively in the He Sai chamber, bar chamber of described hydraulic cylinder.
Embodiment 2:
The control device of the described hot continuous rolling wide flat steel of embodiment 1 guide plate at front side of recoiling machine, described flipper guide comprises parallel-segment and tilting section, the distance between the parallel-segment of the parallel-segment of the flipper guide of fore side and the flipper guide of transmission side is 1150mm-3400mm.
Embodiment 3:
The control device of embodiment 1 or the described hot continuous rolling wide flat steel of embodiment 2 guide plate at front side of recoiling machine, described hydraulic cylinder adopts the hydraulic cylinder that range is 1160mm.
Utilize the control device of above-mentioned hot continuous rolling wide flat steel guide plate at front side of recoiling machine to carry out the control method of hot continuous rolling wide flat steel guide plate at front side of recoiling machine: the method comprises Position Control process and pressure control procedure, set the short stroke action between described Position Control process and described pressure control procedure, described Position Control process is before band steel approaching side guide plate, distance between the parallel-segment of the parallel-segment of the flipper guide of fore side and the flipper guide of transmission side is set as 3330mm, the thickness of working as with steel in described pressure control procedure is 6mm, when width is 3200mm, the gross pressure of flipper guide is set as 15-31KN, when the thickness with steel is 25.4mm, when width is 3200mm, the gross pressure of flipper guide is set as 39-78KN, when the thickness with steel is 22mm, when width is 3200mm, the gross pressure of flipper guide is set as 43-86KN.The gross pressure of flipper guide refers to the pressure sum between the flipper guide of the flipper guide of fore side and transmission side.
The control method of described hot continuous rolling wide flat steel guide plate at front side of recoiling machine, described short stroke action comprises: when band steel approaching side guide plate, due in the control procedure of position, distance between the parallel-segment of the parallel-segment of the flipper guide of fore side and the flipper guide of transmission side is set as 3330mm, and be 3200mm with the width of steel, avoid being offset in the process of strip coiling, distance between the parallel-segment of the parallel-segment of the flipper guide of fore side and the flipper guide of transmission side stroke is for the first time closed 30mm, when the reel of coiling machine is stung steel, stroke is closed 20mm for the second time, when the reel of coiling machine is set up tension force, stroke is closed 5 ~ 20mm for the third time, meanwhile the control procedure of flipper guide is switched to the pressure control procedure, pressure in the pressure control procedure is controlled by pressure sensor.
Claims (5)
1. the control device of a hot continuous rolling wide flat steel guide plate at front side of recoiling machine, comprise the fore side that is arranged on respectively the coiling machine inlet roller way that structure is identical and the flipper guide of transmission side, described flipper guide connects respectively Traverse Displacement Unit, it is characterized in that: the stroke of described Traverse Displacement Unit is 1125mm, described Traverse Displacement Unit comprises one group of push rod, each described push rod connecting fluid cylinder pressure, between described push rod, by synchronous coupling, connect, pressure sensor is equipped with respectively in the He Sai chamber, bar chamber of described hydraulic cylinder.
2. the control device of hot continuous rolling wide flat steel guide plate at front side of recoiling machine according to claim 1, it is characterized in that: described flipper guide comprises parallel-segment and tilting section, and the distance between the parallel-segment of the parallel-segment of the flipper guide of fore side and the flipper guide of transmission side is 1150mm-3400mm.
3. according to the control device of claim 1 or hot continuous rolling wide flat steel guide plate at front side of recoiling machine claimed in claim 2, it is characterized in that: described hydraulic cylinder adopts the hydraulic cylinder that range is 1160mm.
4. the control method of a hot continuous rolling wide flat steel guide plate at front side of recoiling machine: it is characterized in that: the method comprises Position Control process and pressure control procedure, set the short stroke action between described Position Control process and described pressure control procedure, described Position Control process is before band steel approaching side guide plate, distance between the parallel-segment of the parallel-segment of the flipper guide of fore side and the flipper guide of transmission side is set as 3330mm, the thickness of working as with steel in described pressure control procedure is 6mm, when width is 3200mm, the gross pressure of flipper guide is set as 15-31KN, when the thickness with steel is 25.4mm, when width is 3200mm, the gross pressure of flipper guide is set as 39-78KN, when the thickness with steel is 22mm, when width is 3200mm, the gross pressure of flipper guide is set as 43-86KN.
5. the control method of hot continuous rolling wide flat steel guide plate at front side of recoiling machine according to claim 4, it is characterized in that: described short stroke action comprises: when band steel approaching side guide plate, stroke is closed 30mm for the first time, when the reel of coiling machine is stung steel, stroke is closed 20mm for the second time, when the reel of coiling machine is set up tension force, stroke is closed 5mm ~ 20mm for the third time, enters the pressure control procedure simultaneously.
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| CN201310007452.8A CN103447353B (en) | 2013-01-09 | 2013-01-09 | The control device of hot continuous rolling wide flat steel guide plate at front side of recoiling machine and control method |
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| CN201310007452.8A CN103447353B (en) | 2013-01-09 | 2013-01-09 | The control device of hot continuous rolling wide flat steel guide plate at front side of recoiling machine and control method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817170A (en) * | 2014-03-05 | 2014-05-28 | 山西太钢不锈钢股份有限公司 | Control method for special steel coiling side guide short stroke broken line |
| CN104259252A (en) * | 2014-08-04 | 2015-01-07 | 山西太钢不锈钢股份有限公司 | Step type roller |
| CN104525575A (en) * | 2014-12-12 | 2015-04-22 | 湖南华菱涟源钢铁有限公司 | Hot rolled strip steel coiler side guide deviation correction control method |
| CN106583497A (en) * | 2016-12-13 | 2017-04-26 | 山东钢铁股份有限公司 | Control method for pressure of clamping and conveying roller of strip steel coiler |
| CN108115002A (en) * | 2016-11-30 | 2018-06-05 | 宝山钢铁股份有限公司 | The method for improving tail part of band steel scroll quality |
| CN108480407A (en) * | 2018-03-16 | 2018-09-04 | 山东鲁冶瑞宝电气自动化有限公司 | A kind of control method of coiling machine guide ruler short stroke |
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| US5284284A (en) * | 1990-10-23 | 1994-02-08 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Method for controlling side guide means |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817170A (en) * | 2014-03-05 | 2014-05-28 | 山西太钢不锈钢股份有限公司 | Control method for special steel coiling side guide short stroke broken line |
| CN104259252A (en) * | 2014-08-04 | 2015-01-07 | 山西太钢不锈钢股份有限公司 | Step type roller |
| CN104525575A (en) * | 2014-12-12 | 2015-04-22 | 湖南华菱涟源钢铁有限公司 | Hot rolled strip steel coiler side guide deviation correction control method |
| CN104525575B (en) * | 2014-12-12 | 2016-08-31 | 湖南华菱涟源钢铁有限公司 | Correction control method is led in a kind of hot-strip reels side |
| CN108115002A (en) * | 2016-11-30 | 2018-06-05 | 宝山钢铁股份有限公司 | The method for improving tail part of band steel scroll quality |
| CN106583497A (en) * | 2016-12-13 | 2017-04-26 | 山东钢铁股份有限公司 | Control method for pressure of clamping and conveying roller of strip steel coiler |
| CN108480407A (en) * | 2018-03-16 | 2018-09-04 | 山东鲁冶瑞宝电气自动化有限公司 | A kind of control method of coiling machine guide ruler short stroke |
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| CN103447353B (en) | 2016-03-16 |
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