CN103447353B - The control device of hot continuous rolling wide flat steel guide plate at front side of recoiling machine and control method - Google Patents
The control device of hot continuous rolling wide flat steel guide plate at front side of recoiling machine and control method Download PDFInfo
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- CN103447353B CN103447353B CN201310007452.8A CN201310007452A CN103447353B CN 103447353 B CN103447353 B CN 103447353B CN 201310007452 A CN201310007452 A CN 201310007452A CN 103447353 B CN103447353 B CN 103447353B
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Abstract
The invention provides a kind of control device and control method of hot continuous rolling wide flat steel guide plate at front side of recoiling machine.For the hot continuous rolling production line of 3200mm ultra broadband steel, in coiling process, frequently cause guide plate to be drawn bad by huge coiling tension, or because the clamping force excessive flipper guide that causes significantly shortens service life, steel edge portion fold; Also because tension force is too small, product scroll cannot ensure and cause product to be demoted.The present invention includes structure identical be arranged on the fore side of coiling machine inlet roller way and the flipper guide of transmission side respectively, described flipper guide connects Traverse Displacement Unit respectively, 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, connected by synchronous coupling between described push rod, pressure sensor is equipped with respectively in bar chamber and the plug chamber of described hydraulic cylinder.The present invention is used for the control of tandem rolling 3200mm wide flat steel guide plate at front side of recoiling 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 technology field.
Background technology
Day by day fierce along with hot-rolled coil competition, lower procedure proposes higher quality requirement to product, and the scroll quality of coils of hot-rolled steel becomes the important Con trolling index of in production process one.And the control method of flipper guide plays a part very crucial as controlling the important means of of scroll.Owing to there is very large difference to the grasp of plate rolling side guide control method in the production process of hot continuous rolling, finished product scroll is made to be difficult to be ensured reliably, and cause a lot of finished product to be demoted in sales process, especially the coil of strip of the large substance in ultra-large type broadband brings more economic losses because scroll is bad and downstream product brings tremendous influence in the inconvenience of recovery rate and operation.The method that plate rolling side guide controls is improper also directly has influence on the service life of flipper guide and the hidden danger of accidental shutdown, brings huge people and material resources loss to plant maintenance.For the hot continuous rolling production line of 3200mm ultra broadband steel, have employed the method that machinery steps up in process of production, 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, or because the clamping force excessive guide plate that causes significantly shortens service life, steel edge portion folds; Also because tension force is too small, product scroll cannot ensure and cause product to be demoted.
Summary of the invention
The object of the invention is control device and control method that a kind of hot continuous rolling wide flat steel guide plate at front side of recoiling machine is provided for above-mentioned Problems existing, hot continuous rolling for 3200mm ultra broadband steel is produced and is carried out importing and clamping action, reduce replacement frequency and the equipment failure rate of guide plate, to reduce production and operation cost.
Above-mentioned object 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 structure identical be arranged on the fore side of coiling machine inlet roller way and the flipper guide of transmission side respectively, described flipper guide connects Traverse Displacement Unit respectively, 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, is connected by synchronous coupling between described push rod, and pressure sensor is equipped with respectively in bar chamber and the plug 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, 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.
The control device of described hot continuous rolling wide flat steel guide plate at front side of recoiling machine, described hydraulic cylinder adopts range to be the hydraulic cylinder of 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, short stroke action is set 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, when the thickness of band steel is 6mm in described pressure control procedure, when width is 3200mm, the gross pressure of flipper guide is set as 15-31KN, when the thickness of band steel is 25.4mm, when width is 3200mm, the gross pressure of flipper guide is set as 39-78KN, when the thickness of band 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 being with steel approaching side guide plate, first time stroke closedown 30mm, when steel stung by the reel of coiling machine, second time stroke closes 20mm, and when tension force set up by the reel of coiling machine, stroke closes 5mm ~ 20mm third time.
Beneficial effect:
1. because 3200mm is with steel ultra-wide, kind is partially thick, the present invention determines through test of many times, the opening degree that hot continuous rolling for 3200mm ultra broadband steel produces offside guide plate has carried out rational design, the difference of maximum open setting value and maximum finished width wants large relative to conventional hot continuous rolling machine, main cause be prevent major part or camber cannot approaching side guide plate smoothly, range is adopted to be the hydraulic cylinder of 1160mm, and pressure sensor is housed respectively for pressure detecting and feedback in the bar chamber of hydraulic cylinder and plug chamber, control more accurate, in time.
2. due to the accident such as heap steel, steel-fastening, abuse adopting permanent opening degree or cause because opening degree is too small, 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 fore side and the parallel-segment of the flipper guide of transmission side is adjusted according to the band operation of steel and the tension force situation of coiler mandrel, reasonably regulate flipper guide and the contact force of band steel by Stress control simultaneously, while effectively avoiding piling steel, steel-fastening, increase substantially the service life of flipper guide.
3. during the present invention meets in all scopes of 3200mm continuous hot-rolling mill finished width change procedure, the control of flipper guide, has good improvement result to the scroll of finished product.
Accompanying drawing explanation
Fig. 1, structural representation of the present invention.
The A-A profile of Fig. 2, Fig. 1.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
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 flipper guide 1 of the identical fore side being arranged on coiling machine inlet roller way 6 respectively of structure and transmission side, described flipper guide connects Traverse Displacement Unit 2 respectively, 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, connected by synchronous coupling 5 between described push rod, pressure sensor is equipped with respectively in bar chamber and the plug chamber of described hydraulic cylinder.
Embodiment 2:
The control device of the hot continuous rolling wide flat steel guide plate at front side of recoiling machine described in embodiment 1, 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.
Embodiment 3:
The control device of embodiment 1 or the hot continuous rolling wide flat steel guide plate at front side of recoiling machine described in embodiment 2, described hydraulic cylinder adopts range to be the hydraulic cylinder of 1160mm.
The control device of above-mentioned hot continuous rolling wide flat steel guide plate at front side of recoiling machine is utilized 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, short stroke action is set 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, when the thickness of band steel is 6mm in described pressure control procedure, when width is 3200mm, the gross pressure of flipper guide is set as 15-31KN, when the thickness of band steel is 25.4mm, when width is 3200mm, the gross pressure of flipper guide is set as 39-78KN, when the thickness of band 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 fore side and the flipper guide of 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 being with 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 the width with steel is 3200mm, avoid offseting in the process of strip coiling, distance first time stroke between the parallel-segment of the parallel-segment of the flipper guide of fore side and the flipper guide of transmission side closes 30mm, when steel stung by the reel of coiling machine, second time stroke closes 20mm, when tension force set up by the reel of coiling machine, stroke closes 5 ~ 20mm third time, meanwhile the control procedure of flipper guide is switched to pressure control procedure, pressure in pressure control procedure is controlled by pressure sensor.
Claims (1)
1. 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 is: at the flipper guide that the fore side of coiling machine inlet roller way is identical with transmission side mounting structure, described flipper guide comprises parallel-segment and tilting section, 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, first in-position control procedure: before band steel approaching side guide plate, 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 set as 3330mm, enter short stroke action again: when being with steel approaching side guide plate, first time stroke closedown 30mm, when steel stung by the reel of coiling machine, second time stroke closes 20mm, when tension force set up by the reel of coiling machine, stroke closes 5mm ~ 20mm third time, enter pressure control procedure: when the thickness of band steel is 6mm simultaneously, when width is 3200mm, the gross pressure of flipper guide is set as 15-31KN, when the thickness of band steel is 25.4mm, when width is 3200mm, the gross pressure of flipper guide is set as 39-78KN, when the thickness of band steel is 22mm, when width is 3200mm, the gross pressure of flipper guide is set as 43-86KN.
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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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| CN103447353B true CN103447353B (en) | 2016-03-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817170B (en) * | 2014-03-05 | 2016-06-22 | 山西太钢不锈钢股份有限公司 | Special steel batches side and leads short stroke broken line control method |
| CN104259252A (en) * | 2014-08-04 | 2015-01-07 | 山西太钢不锈钢股份有限公司 | Step type roller |
| 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 |
| CN108115002B (en) * | 2016-11-30 | 2019-08-27 | 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 |
| CN108480407B (en) * | 2018-03-16 | 2020-03-24 | 山东鲁冶瑞宝电气自动化有限公司 | Control method for short stroke of guide ruler of coiling machine |
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|---|---|---|---|---|
| US4643013A (en) * | 1985-06-25 | 1987-02-17 | Blazevic David T | Coil guide system for hot strip mills |
| US5284284A (en) * | 1990-10-23 | 1994-02-08 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Method for controlling side guide means |
| CN101581944A (en) * | 2008-05-15 | 2009-11-18 | 宝山钢铁股份有限公司 | Control method of alternative pressure of side guides of hot strip mill coiler |
| CN201791778U (en) * | 2010-09-21 | 2011-04-13 | 宝山钢铁股份有限公司 | Side guiding device for strip steel of hot-rolling coiler |
| CN203030671U (en) * | 2013-01-09 | 2013-07-03 | 番禺珠江钢管（连云港）有限公司 | Control device of front-side guide plates of hot-continuous-rolling wide-band-steel coiling machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001293992A1 (en) * | 2000-10-10 | 2002-04-22 | Encomech Engineering Developments Limited | Strip coiler entry side guides |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643013A (en) * | 1985-06-25 | 1987-02-17 | Blazevic David T | Coil guide system for hot strip mills |
| US5284284A (en) * | 1990-10-23 | 1994-02-08 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Method for controlling side guide means |
| CN101581944A (en) * | 2008-05-15 | 2009-11-18 | 宝山钢铁股份有限公司 | Control method of alternative pressure of side guides of hot strip mill coiler |
| CN201791778U (en) * | 2010-09-21 | 2011-04-13 | 宝山钢铁股份有限公司 | Side guiding device for strip steel of hot-rolling coiler |
| CN203030671U (en) * | 2013-01-09 | 2013-07-03 | 番禺珠江钢管（连云港）有限公司 | Control device of front-side guide plates of hot-continuous-rolling wide-band-steel coiling machine |
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