CN101961741A - Six-roller leveler with low rolling force function on continuous annealing line - Google Patents
Six-roller leveler with low rolling force function on continuous annealing line Download PDFInfo
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- CN101961741A CN101961741A CN 201010521725 CN201010521725A CN101961741A CN 101961741 A CN101961741 A CN 101961741A CN 201010521725 CN201010521725 CN 201010521725 CN 201010521725 A CN201010521725 A CN 201010521725A CN 101961741 A CN101961741 A CN 101961741A
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- roller
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Abstract
The invention relates to a six-roller leveler with a low rolling force function on a continuous annealing line, which is used for rolling band steel and comprises an upper cross beam, supporting rollers, working rollers, a stand gantry, AGC (Automatic Gain Control) cylinders, a base, intermediate rollers and an intermediate roller bending cylinder. The upper cross beam is erected above the base through the stand gantry, an upper supporting roller, an upper intermediate roller, an upper working roller, a lower intermediate roller and a lower supporting roller are sequentially arranged between the upper cross beam and the base from the top down, and the band steel is located between the upper working roller and the lower working roller. One AGC cylinder is respectively arranged between two ends of the lower supporting roller below the band steel and the base. In a window of the stand gantry, the intermediate roller bending cylinder capable of bending the intermediate roller positively and negatively is arranged above the band steel. By adopting the six-roller lever of the invention, soft, narrow and thick band steel can be flatly rolled and normally produced under the rolling force supplied by the AGC cylinder in the traditional method when the minimum controllable rolling force exceeds a ranged required by band steel.
Description
Technical field
The present invention relates to the belt steel flating machine, is the six roller planishers that have little roll-force function on a kind of continuous annealing line.
Background technology
Planisher is as the term suggests play smooth effect, and to be used for sheet material smooth more, and sheet material profile of dispatching from the factory and surface are smooth smooth basically, can pass through operations such as punching press or cutting, welding, assembling, can come into operation in each fields such as industry and daily lifes.
The band steel is after (for example bell type annealing furnace) PROCESS FOR TREATMENT of annealing separately, when punch process at yield point elongation skid wire can appear, the rib tendency can appear when bending to circular arc laterally rolling over, thereby make the work piece surface quality bad, undertaken smoothly eliminating this yield point elongation phenomenon by suitable percentage elongation, and suitably improve its mechanical performance.
Be heated in the annealing process deliquescing distortion of band steel can be eliminated this flatness defect when smooth, obtains smooth band steel.Automobile exterior panel has certain roughness, is beneficial to lubricating oil and is retained in plate surface, can reduce during punching press and mould between friction.The adhesive ability that is used for Coil Coating Products and needs surperficial mopping plate to have the plate of roughness to coat with lacquer is stronger.
Therefore, smooth indispensable manufacturing procedure when being the sheet material finished product or before dispatching from the factory.The roughness of working roll can be delivered to belt steel surface when smooth, makes belt steel surface have roughness.Working roll is realized desired roll surface roughness by shot-peening and grinding roller.
But existing flattening process exists following problem:
Existing flattening process mainly provides roll-force to carry out smooth to the band steel by the control of the automatic thickness in the closed frame (AGC) cylinder, and the AGC cylinder generally only can control effectively to the roll-force of AGC cylinder maximum rolling force more than 6%, and all the other are because non-linear relation etc. are former thereby uncontrollable.And there are the kind of some products and the specification need be smooth now in this scope.For example the thickness of the IF steel of certain 1800CAPL of steel mill is that 0.7mm, width are 800mm, the roll-force of this moment is about 70 tons, at the 6%(72 ton of AGC cylinder maximum rolling force (1200 tons)) near the scope, normal controlled rolling power accurately and reliably, thereby can't carry out normal belt steel flating production.Steel mill present stage is for for the purpose of reliable, arranges production during plan actual, and the following band steel of the wide 900mm of this type of steel is not just arranged this line production.
In order to solve this type of problem, people have carried out some other explorations, as improving AGC cylinder back pressure, make composite cylinder etc., but have problems such as the still on the low side and structure of some precision, operation, maintenance complexity, and technology is immature, thereby does not have the successful Application example.
Needs along with market, the soft band steel that is easy to the processing and forming deep draw of each steel mill's Development and Production engenders, this type of steel is when width is too narrow to a certain degree, thickness one timing, the roll-force that needs when smooth is less, when little to planisher the minimum controllable draught pressure or when following, just reliably controlled rolling pressure is produced, and this part produce market often has demand.
The newly-increased CAL of existing 2030 milling trains of certain steel mill connects the CAL that moves back unit and this subsidiary of steel mill and even moves back unit, its product specification is: width 700～1630mm, thickness 0.3～2.3mm, the IF steel is arranged in the product, when width less than 800mm, when thickness 0.7mm is above, class steel such as IF can not be used the smooth production of conventional method when this specification.And the product that the frequent demand width in market is 500～800mm.If by slitting production, bigger additional deformation will be arranged, and there is problems such as being out of shape instability with wide flat steel.
Newly-built many production lines also have this kind and specification band steel at present, but can not use the smooth production of conventional method.
Therefore, the solution of this type of problem helps to solve the mild steel veriety and specification can not be used the smooth production of conventional method, and a solution and equipment are provided, and satisfies the needs of its normal smooth production.This is for the production range of improving and expand smooth equipment, and it is significant to improve band steel production capacity and product quality, will make steel mill at home and abroad in the market competition, is in perch more.
Summary of the invention
Task of the present invention provides the six roller planishers that have little roll-force function on a kind of continuous annealing line, it has overcome the shortcoming of above-mentioned prior art, solved when the AGC cylinder with conventional method provides roll-force, when scope that minimum controlled roll-force need be controlled greater than the band steel and can not skin pass rolling, some problems during soft, narrow, the thick band steel of ordinary production.
Technical solution of the present invention is as follows:
Have six roller planishers of little roll-force function on a kind of continuous annealing line, be used for rolled band steel, comprise entablature, backing roll, working roll, framework memorial archway, AGC cylinder, base, intermediate calender rolls and intermediate calender rolls roller cylinder;
Described entablature is erected at the top of base by framework memorial archway, entablature is to setting gradually top backing up roll, last intermediate calender rolls, top working roll, bottom working roll, following intermediate calender rolls and lower support roller from top to bottom between the base, described band steel is between top working roll and bottom working roll;
Between the lower support roller two ends of described band steel below and the base AGC cylinder is set respectively;
In the window of described six roller planisher framework memorial archways, the top of band steel is provided with the just intermediate calender rolls roller cylinder of hogging bending intermediate calender rolls.
Adopt piston and thrust face all to provide roll-force less than the intermediate calender rolls roller cylinder of AGC cylinder.
Described top backing up roll, lower support roller, last intermediate calender rolls, following intermediate calender rolls, top working roll and bottom working roll are and are horizontally disposed with.
Arrange several bearing blocks in the window of described machine frame at two sides memorial archway respectively, the two ends of described top backing up roll, lower support roller, last intermediate calender rolls, following intermediate calender rolls, top working roll and bottom working roll all are assemblied in can freely rotate in the corresponding bearing block, the overall assembly parts of roller and corresponding axis bearing can be along vertical in the window of the both sides of framework memorial archway, lifting flatly, but intermediate calender rolls axial float.
The six roller planishers that have little roll-force function on the described continuous annealing line comprise also and connect axle and transmission device that coaxial connection drives the lower support roller.
The band steel still can be retained in the frame when described backing roll, intermediate calender rolls, work roll changing.
The present invention is owing to adopted above technical scheme, make it compared with prior art, when the AGC cylinder with conventional method provides roll-force, when minimum controlled roll-force too big, cause sensitivity too low, surpass roll-force accuracy rating that the band steel need control and can not ordinary production the time, adopt the six roller planishers that have little roll-force function on the continuous annealing line of the present invention, can normal skin pass rolling, can normally control and produce soft, narrow, thick band steel, a kind of good solution is provided thus.
Description of drawings
Accompanying drawing is the structural representation that has six roller planishers of little roll-force function on a kind of continuous annealing line of the present invention.
Reference numeral:
1 is entablature, and 5 is framework memorial archway, and 6 is intermediate calender rolls roller cylinder and roll shifting device, and 7 is bearing block, and 8 is the AGC cylinder, 9 is base, and 10 for connecing axle, and 11 are the band steel, and 21 is top backing up roll, and 22 is the lower support roller, 31 is last intermediate calender rolls, and 32 are following intermediate calender rolls, and 41 is top working roll, and 42 is bottom working roll.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is elaborated.
Referring to accompanying drawing, the six roller planishers that have little roll-force function on a kind of continuous annealing line of the present invention, be used for skin pass rolling band steel 11, mainly form by rack (entablature 1, about two formations such as framework memorial archway 5, base 9, AGC cylinder 8, roll shifting beam and intermediate calender rolls roller cylinder 6), roller system's assembling (formations such as backing roll, working roll, intermediate calender rolls), transmission device assembling transmission devices such as (connect constitute) axles 10.
Rack by about the top of two framework memorial archways 5 connect closing by entablature 1, respective aperture on the lower margin plate hole of memorial archway bottom and the base 9 and hole, basis, ground are connected handle by foundation bolt and set up into the enclosed framework jointly, roller is to be arranged in entablature 1 under the fit on between the base 9, about being arranged in about it between two framework memorial archway windows, arrange top backing up roll 21, last intermediate calender rolls 31, top working roll 41, bottom working roll 42, following intermediate calender rolls 32 and lower support roller 22 from top to bottom successively, band steel 11 is between top working roll 41 and bottom working roll 42.
As shown in FIG., last intermediate calender rolls 31 is between top backing up roll 21 and top working roll 41, and following intermediate calender rolls 32 is between lower support roller 22 and bottom working roll 42.
On the two end axles bearing of the lower support roller 22 of band steel 11 belows and the base 9 between the base 9 AGC cylinder 8 is set respectively.
In the window of six roller planisher framework memorial archways, near the last intermediate calender rolls bearing block of the top of band steel, be provided with the just intermediate calender rolls roller cylinder of hogging bending intermediate calender rolls, roll-force is provided during the hogging bending intermediate calender rolls.The piston of intermediate calender rolls roller cylinder 6 and thrust face be all less than AGC cylinder 8, be about its about 10%.
Near the intermediate calender rolls spindle nose framework memorial archway is provided with the roll shifting device, can make intermediate calender rolls 31,32 axial floats.
Top backing up roll 21, lower support roller 22, last intermediate calender rolls 31, following intermediate calender rolls 32, top working roll 41 and bottom working roll 42 are and are horizontally disposed with.
Roller system each roller of assembling all can be along vertical in the window of the both sides of framework memorial archway, lifting flatly.
The roll-force controlled of general A GC cylinder is about 6% of maximum rolling force, and when roll-force was below this, thrust numerical value became non-linear rule change, and uncontrollable.
The present invention utilizes the roller masterpiece roll-force of planisher roller cylinder or close function cylinder, compare with the AGC cylinder, the piston of roller cylinder is little, thrust face is less, the bending roller force of roller cylinder or thrust are little a lot of under the same hydraulic pressure, generally are about about 10% of AGC cylinder maximum rolling force, and it is comparatively accurate so just can to control roll-force, what be about AGC cylinder maximum rolling force (about 10% * 6%=) 0.6%, improves (about 10 times) than the controllable scope of AGC cylinder greatly.When the needs ordinary production, use the AGC cylinder, too little when producing soft, narrow, thick band steel because of the roll-force of needs control, when the AGC cylinder can not be produced, produce with roller masterpiece roll-force, the roll-force that all specifications of mild steel products such as IF steel need is all in this scope, and all specifications of mild steel product such as IF steel all can be controlled smooth production basically like this.
Present embodiment is the formula that the presses UCM six roller planishers on the continuous annealing line, the negative roller function of intermediate calender rolls on this has increased.When negative roller masterpiece roll-force is produced on the needs, operating system switches to planisher roller masterpiece roll-force control model, the intermediate calender rolls play is to the centre position of two memorial archways up and down, adjust the AGC cylinder and press the position, make bottom working roll be positioned at rolling absolute altitude position, locking AGC cylinder by intermediate calender rolls and the supporting of lower support roller down, makes bottom working roll be locked in rolling absolute altitude position.The compensating cylinder of balance top backing up roll rises, top backing up roll rises thereupon, top backing up roll is separated with last intermediate calender rolls, last intermediate calender rolls is pressed the required roll-force of belt steel flating, and the negative roller chamber oil-feed of the roller cylinder of intermediate calender rolls promotes top working roll downwards and depresses in the utilization, roll-force is provided, planisher main transmission drives, and in conjunction with the tension force control percentage elongation that the front and back jockey pulley provides, finishes belt steel flating.During roll changes such as working roll, the band steel still can be retained in the frame, to satisfy the continuous annealing needs.
In summary, adopt the six roller planishers that have little roll-force function on the continuous annealing line of the present invention, when the AGC cylinder with conventional method provides roll-force, when scope that minimum controlled roll-force need be controlled greater than the band steel, can skin pass rolling, band steel that ordinary production is soft, narrow, thick.Six roller HC planishers also can adopt the method.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the present invention, and be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention the variation of the foregoing description, modification etc.
Claims (6)
1. the six roller planishers that have little roll-force function on the continuous annealing line are used for rolled band steel, it is characterized in that: comprise entablature, backing roll, working roll, framework memorial archway, AGC cylinder, base, intermediate calender rolls and intermediate calender rolls roller cylinder;
Described entablature is erected at the top of base by framework memorial archway, entablature is to setting gradually top backing up roll, last intermediate calender rolls, top working roll, bottom working roll, following intermediate calender rolls and lower support roller from top to bottom between the base, described band steel is between top working roll and bottom working roll;
Between the lower support roller two ends of described band steel below and the base AGC cylinder is set respectively;
In the window of described six roller planisher framework memorial archways, the top of band steel is provided with the just intermediate calender rolls roller cylinder of hogging bending intermediate calender rolls.
2. have six roller planishers of little roll-force function on the continuous annealing line according to claim 1, it is characterized in that: adopt piston and thrust face all to provide roll-force less than the intermediate calender rolls roller cylinder of AGC cylinder.
3. have six roller planishers of little roll-force function on the continuous annealing line according to claim 1, it is characterized in that: described top backing up roll, lower support roller, last intermediate calender rolls, following intermediate calender rolls, top working roll and bottom working roll are and are horizontally disposed with.
4. the six roller planishers that have little roll-force function on the continuous annealing line according to claim 1, it is characterized in that: arrange several bearing blocks in the window of described machine frame at two sides memorial archway respectively, the two ends of described top backing up roll, lower support roller, last intermediate calender rolls, following intermediate calender rolls, top working roll and bottom working roll all are assemblied in can freely rotate in the corresponding bearing block, the overall assembly parts of roller and corresponding axis bearing can be along vertical in the window of the both sides of framework memorial archway, lifting flatly, but intermediate calender rolls axial float.
5. have six roller planishers of little roll-force function on the continuous annealing line according to claim 1, it is characterized in that: also comprise connecing axle and transmission device, coaxial connection drives the lower support roller.
6. have six roller planishers of little roll-force function on the continuous annealing line according to claim 1, it is characterized in that: the band steel still can be retained in the frame when described backing roll, intermediate calender rolls, work roll changing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010521725 CN101961741A (en) | 2010-10-27 | 2010-10-27 | Six-roller leveler with low rolling force function on continuous annealing line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010521725 CN101961741A (en) | 2010-10-27 | 2010-10-27 | Six-roller leveler with low rolling force function on continuous annealing line |
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| CN101961741A true CN101961741A (en) | 2011-02-02 |
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| CN 201010521725 Pending CN101961741A (en) | 2010-10-27 | 2010-10-27 | Six-roller leveler with low rolling force function on continuous annealing line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652958A (en) * | 2012-05-04 | 2012-09-05 | 中国重型机械研究院有限公司 | Dual six-roller flattening machine |
| CN108136467A (en) * | 2015-10-02 | 2018-06-08 | Sms集团有限公司 | For the equipment of the flat articles of gag press straightening metal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036919A (en) * | 2007-03-29 | 2007-09-19 | 中冶南方工程技术有限公司 | Heat-cold smoothing device |
| CN101301659A (en) * | 2008-03-15 | 2008-11-12 | 燕山大学 | On-line method for setting mechanism model-based plate parameter of double UCM temper milling machine group |
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2010
- 2010-10-27 CN CN 201010521725 patent/CN101961741A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036919A (en) * | 2007-03-29 | 2007-09-19 | 中冶南方工程技术有限公司 | Heat-cold smoothing device |
| CN101301659A (en) * | 2008-03-15 | 2008-11-12 | 燕山大学 | On-line method for setting mechanism model-based plate parameter of double UCM temper milling machine group |
Non-Patent Citations (1)
| Title |
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| 《冶金自动化》 20071231 黄才铨 连退机组平整机控制技术及应用 631-634 6 , 2 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652958A (en) * | 2012-05-04 | 2012-09-05 | 中国重型机械研究院有限公司 | Dual six-roller flattening machine |
| CN108136467A (en) * | 2015-10-02 | 2018-06-08 | Sms集团有限公司 | For the equipment of the flat articles of gag press straightening metal |
| CN108136467B (en) * | 2015-10-02 | 2020-07-14 | Sms集团有限公司 | Device for pressure straightening of metallic flat articles |
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Application publication date: 20110202 |