CN109719136A - A kind of six power support roller roller curves - Google Patents
A kind of six power support roller roller curves Download PDFInfo
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- CN109719136A CN109719136A CN201811581877.9A CN201811581877A CN109719136A CN 109719136 A CN109719136 A CN 109719136A CN 201811581877 A CN201811581877 A CN 201811581877A CN 109719136 A CN109719136 A CN 109719136A
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Abstract
The present invention relates to a kind of six power support roller roller curves, belong to metallurgy industry strip production equipment technology.Technical solution is: the equation of support roller roller curve are as follows: f (x)=p1*x^6+p2*x^5+p3*x^4+p4*x^3+p5*x^2+p6*x+p7；Wherein: x is support roller barrel length coordinate, p1、p2、p3、p4、p5、p6Respectively six powers of equation, five powers, biquadratic, cube, quadratic power, first power coefficient, p7For the constant term of equation, E is scientific notation；Support roller roller curve is ground using numerically control grinder.The beneficial effects of the present invention are: finished strip template can be improved, rate is sentenced because of the drop of template and is reduced to 0.06% from 4.63%.Six power support roller roller curves are that the curve of a grinding-shaping improves the grinding efficiency of support roller without being individually ground the two sides chamfering of support roller.
Description
Technical field
The present invention relates to a kind of six power support roller roller curves, belong to metallurgy industry strip production equipment technology.
Background technique
The superior in quality products application of template is in automobile, household electrical appliances manufacture etc., and market demand is larger, now both at home and abroad
Hot continuous rolling technology is to being precisely controlled of plate shape, thickness and precision, temperature and performance, the control of the quality on surface etc. development.Strip
The Strip Shape Control of product is always that domestic and international factory makes great efforts the main problem solved, deformed steel strip to production stability, cost,
Operating rate and product quality cause strong influence.Improve thin gauge and variety steel strip shape quality, for steady production,
Promoting operating rate, reduction roll abnormal consumption, promotion product quality all has significant economic benefit, and can push rolling technique
Progress provides demonstration and reference function for the upgrading of domestic and international same type production line technology.
1700 production lines are that current metallurgy industry strip produces common production line, including steel rolling process and smooth process,
Due to the roll shape of 1700 finishing mills and leveling-machine supporting-roller is bad etc., the generally existing bilateral unrestrained defect of finished strip is caused,
Thickness is thinner, the more high bilateral unrestrained defect of intensity is all the more serious, causes large effect, and portion to subsequent handling production and equipment
Point product finally causes drop to be sentenced or quality objection because template is bad.
Summary of the invention
It is an object of the present invention to provide a kind of six power support roller roller curves, can improve finished strip template, improve and produce
Product presentation quality, solves the problems, such as background technique.
The technical scheme is that
A kind of six power support roller roller curves, the equation of support roller roller curve are as follows:
f(x) = p1*x^6 + p2*x^5 + p3*x^4 + p4*x^3 + p5*x^2 + p6*x + p7
Wherein: f (x) is the unitary sextic equation formula of support roller roller curve
X is support roller barrel length coordinate
p1、 p2 、p3 、p4 、p5 、p6Respectively six powers of equation, five powers, biquadratic, cube, quadratic power, first power
Coefficient
p7For the constant term of equation
E is scientific notation；
The p1、 p2 、p3 、p4 、p5 、p6And p7Respectively correspond different support rollers, in which:
Leveling-machine supporting-roller: p1=-2.152 E -18, p2=1.136E-14, p3=-2.370 E -11, p4 =2.479 E -
08, p5=-1.357 E -06, P6=3.661 E -03, P7=-0.381；
1700 Hot Line finish rolling side arm F1-F3 support rollers: P1=-1.069 E -17, P2 =5.387 E -15, P3 =-
1.0881 E -11, P4=1.12 E -07, P5=-6.186 E -05, P6=1.739 E -02, P7=-1.963；
1700 Hot Line finish rolling side arm F4-F7 support rollers: P1=-5.067 E -18, P2=2.554 E -14, P3 =-5.219
E -11, P4=5.523 E -08, P5=-3.186 E -05, P6 =9.481 E -03, P7 =0。
Support roller roller curve is ground using numerically control grinder, when grinding, can take following two method:
Method one: when grinding, the parameter of support roller roller curve equation is defeated for the numerically control grinder with CVC curve program
Enter into the CVC curve program of numerically control grinder, is then ground by the CVC curve program of numerically control grinder, until support roller
Roll surface be ground to six power support roller roller curves until；
Method two:, can be using the method inputted point by point for the numerically control grinder without CVC curve program, it first will support
Support roller barrel length coordinate x in roller roller curve equation is divided into several points, starting point 0, and terminal is that the support roller body of roll is long
Degree, then the other parameters in support roller barrel length coordinate x and support roller roller curve equation are input to the mill of numerically control grinder
It cuts in program and is ground, until the roll surface of support roller is ground to six power support roller roller curves.
The number for the point that support roller barrel length coordinate x is divided into the method two can be such that support roller roller curve connects
At a smooth curve.
The beneficial effects of the present invention are: finished strip template can be improved, rate is sentenced because of the drop of template and is reduced to from 4.63%
0.06%.Six power support roller roller curves are the curves of a grinding-shaping, without being individually ground the two sides chamfering of support roller,
Improve the grinding efficiency of support roller.
Detailed description of the invention
Fig. 1 is six power support roller roller curve figures；
Fig. 2 is that six power support roller roller curves check schematic diagram.
Specific embodiment
Below in conjunction with attached drawing, by example, the invention will be further described.
Referring to attached drawing 1, a kind of six power support roller roller curves, the equation of support roller roller curve are as follows:
f(x) = p1*x^6 + p2*x^5 + p3*x^4 + p4*x^3 + p5*x^2 + p6*x + p7
Wherein: f (x) is the unitary sextic equation formula of support roller roller curve
X is support roller barrel length coordinate
p1、 p2 、p3 、p4 、p5 、p6Respectively six powers of equation, five powers, biquadratic, cube, quadratic power, first power
Coefficient
p7For the constant term of equation
E is scientific notation；
The p1、 p2 、p3 、p4 、p5 、p6And p7Respectively correspond different support rollers, in which:
Leveling-machine supporting-roller: p1=-2.152 E -18, p2=1.136E-14, p3=-2.370 E -11, p4 =2.479 E -
08, p5=-1.357 E -06, P6=3.661 E -03, P7=-0.381；
1700 Hot Line finish rolling side arm F1-F3 support rollers: P1=-1.069 E -17, P2=5.387 E -15, P3 =-
1.0881 E -11, P4 =1.12 E -07, P5 =-6.186 E -05, P6=1.739 E -02, P7=-1.963；
1700 Hot Line finish rolling side arm F4-F7 support rollers: P1=-5.067 E -18, P2=2.554 E -14, P3 =-5.219
E -11, P4=5.523 E -08, P5=-3.186 E -05, P6=9.481 E -03, P7 =0。
Support roller roller curve is ground using numerically control grinder, when grinding, can take following two method:
Method one: when grinding, the parameter of support roller roller curve equation is defeated for the numerically control grinder with CVC curve program
Enter into the CVC curve program of numerically control grinder, is then ground by the CVC curve program of numerically control grinder, until support roller
Roll surface be ground to six power support roller roller curves until；
Method two:, can be using the method inputted point by point for the numerically control grinder without CVC curve program, it first will support
Support roller barrel length coordinate x in roller roller curve equation is divided into several points, starting point 0, and terminal is that the support roller body of roll is long
Degree, then the other parameters in support roller barrel length coordinate x and support roller roller curve equation are input to the mill of numerically control grinder
It cuts in program and is ground, until the roll surface of support roller is ground to six power support roller roller curves.
In the present embodiment, determine that six required powers are bent by support roller barrel length, middle a large amount and chamfering length
The key point of line is shown in point 1 in attached drawing 1 ~ 4, then fits leveling-machine supporting-roller, 1700 Hot Line finish rolling with mathematical tool
Each coefficient p of six power curves of side arm F1-F3 and finish rolling after-frame F4-F7 support roller1、 p2 、p3 、p4 、p5 、p6、
p7。
For the numerically control grinder with CVC curve program, six power curve sides can be directly inputted in CVC curve program
The parameter of journey, parameters can be fitted adjustment according to the middle a large amount and chamfering length of production actual demand.
For in the control system of grinding machine without corresponding curve program, can be using the method inputted point by point.With 1700
For the support roller for 1680 mm of body of roll height that line uses, the body of roll length of 1680mm is divided into 170 points first, 170 points are not
It is to be evenly distributed, the big position of two sides Curvature varying, reference point takes closeer, and intermediate curvature changes small position, reference point
What is taken is fewer, starting point 0, terminal 1680, and 170 points are substituted into six power curve equations, obtain 170 solutions, thus
It obtains 170 groups of coordinate points, is linked to be a smooth curve, i.e. six power curves of the support roller roll shape by this 170 points.In reality
It in the setting of border grinding program, can infinitely increase input point, keep line smoothing fine and close, to guarantee that roll surface after grinding is steady
Excessively, without Grinding defects such as grinding wheel tool marks.
The support roller being ground is needed to check its six powers support roller curve before use, it, will when check
Calculated roller curve, roller parameter and rolling load input finite element analysis software, calculate support roller and working roll
Roll gap pressure, the allowable stress for whether exceeding roll checked, calculated result is shown in Fig. 2.The stress color shown from Fig. 2 is aobvious
Show, the stress that roller curve does not obviously increase support roller and working roll roller system can be clearly seen, and range of strain is in lower
Risk range, meet the check intensity of production.If roll gap pressure is higher, can suitably increase in a large amount or chamfering it is long
Degree, is then calculated again.
Using this roll shape, the last bilateral unrestrained trend in the outlet sortie finish rolling F7 improves obviously, because the drop of template sentences rate from 4.63% drop
As low as 0.06%.
Claims (3)
1. a kind of six power support roller roller curves, it is characterised in that: the equation of support roller roller curve are as follows:
f(x) = p1*x^6 + p2*x^5 + p3*x^4 + p4*x^3 + p5*x^2 + p6*x + p7
Wherein: f (x) is the unitary sextic equation formula of support roller roller curve
X is support roller barrel length coordinate
p1、 p2 、p3 、p4 、p5 、p6Respectively six powers of equation, five powers, biquadratic, cube, quadratic power, first power
Coefficient
p7For the constant term of equation
E is scientific notation；
The p1、 p2 、p3 、p4 、p5 、p6And p7Respectively correspond different support rollers, in which:
Leveling-machine supporting-roller: p1=-2.152 E -18, p2=1.136E-14, p3=-2.370 E -11, p4 =2.479 E -
08, p5=-1.357 E -06, P6=3.661 E -03, P7=-0.381；
1700 Hot Line finish rolling side arm F1-F3 support rollers: P1=-1.069 E -17, P2=5.387 E -15, P3 =-
1.0881 E -11, P4=1.12 E -07, P5=-6.186 E -05, P6=1.739 E -02, P7=-1.963；
1700 Hot Line finish rolling side arm F4-F7 support rollers: P1=-5.067 E -18, P2=2.554 E -14, P3 =-5.219
E -11, P4=5.523 E -08, P5=-3.186 E -05, P6=9.481 E -03, P7 =0。
2. a kind of six powers support roller roller curve according to claim 1, it is characterised in that: support roller roller curve is adopted
It is ground with numerically control grinder, when grinding, following two method can be taken:
Method one: when grinding, the parameter of support roller roller curve equation is defeated for the numerically control grinder with CVC curve program
Enter into the CVC curve program of numerically control grinder, is then ground by the CVC curve program of numerically control grinder, until support roller
Roll surface be ground to six power support roller roller curves until；
Method two:, can be using the method inputted point by point for the numerically control grinder without CVC curve program, it first will support
Support roller barrel length coordinate x in roller roller curve equation is divided into several points, starting point 0, and terminal is that the support roller body of roll is long
Degree, then the other parameters in support roller barrel length coordinate x and support roller roller curve equation are input to the mill of numerically control grinder
It cuts in program and is ground, until the roll surface of support roller is ground to six power support roller roller curves.
3. a kind of six powers support roller roller curve according to claim 2, it is characterised in that: supported in the method two
The number for the point that roller barrel length coordinate x is divided into can make support roller roller curve connect into a smooth curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811581877.9A CN109719136B (en) | 2018-12-24 | 2018-12-24 | Roll-shaped curve of hexagonal square supporting roll |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811581877.9A CN109719136B (en) | 2018-12-24 | 2018-12-24 | Roll-shaped curve of hexagonal square supporting roll |
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| CN109719136A true CN109719136A (en) | 2019-05-07 |
| CN109719136B CN109719136B (en) | 2021-02-26 |
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| CN201811581877.9A Active CN109719136B (en) | 2018-12-24 | 2018-12-24 | Roll-shaped curve of hexagonal square supporting roll |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111881528A (en) * | 2020-07-23 | 2020-11-03 | 东北大学 | Method for determining roll shape curve of back-up roll of CVC rolling mill with parabolic chamfer |
| CN113714305A (en) * | 2021-07-30 | 2021-11-30 | 安阳钢铁股份有限公司 | Method for improving flat plate shape defect |
| CN114147559A (en) * | 2021-11-22 | 2022-03-08 | 江苏沙钢集团有限公司 | Roll shape configuration method and configuration structure of cold-rolled tin plate continuous annealing line temper mill |
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| JPH08117829A (en) * | 1994-10-18 | 1996-05-14 | Kawasaki Steel Corp | Cold rolling method for steel sheet |
| CN101890429A (en) * | 2010-07-22 | 2010-11-24 | 首钢总公司 | Complete roll forming configuring method for wide flat steel hot rolling finish mill set |
| CN102247993A (en) * | 2011-05-27 | 2011-11-23 | 马鞍山钢铁股份有限公司 | Method for designing and matching roll shape of continuous annealing temper mill |
| CN102716911A (en) * | 2012-06-21 | 2012-10-10 | 首钢总公司 | Composite supporting roll for hot-continuous rolling wide-strip-steel four-roll mill |
| CN104492814A (en) * | 2014-11-28 | 2015-04-08 | 首钢总公司 | Roll contour configuration method for hot-rolling 1580mm temper mill |
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2018
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08117829A (en) * | 1994-10-18 | 1996-05-14 | Kawasaki Steel Corp | Cold rolling method for steel sheet |
| CN101890429A (en) * | 2010-07-22 | 2010-11-24 | 首钢总公司 | Complete roll forming configuring method for wide flat steel hot rolling finish mill set |
| CN102247993A (en) * | 2011-05-27 | 2011-11-23 | 马鞍山钢铁股份有限公司 | Method for designing and matching roll shape of continuous annealing temper mill |
| CN102716911A (en) * | 2012-06-21 | 2012-10-10 | 首钢总公司 | Composite supporting roll for hot-continuous rolling wide-strip-steel four-roll mill |
| CN104492814A (en) * | 2014-11-28 | 2015-04-08 | 首钢总公司 | Roll contour configuration method for hot-rolling 1580mm temper mill |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111881528A (en) * | 2020-07-23 | 2020-11-03 | 东北大学 | Method for determining roll shape curve of back-up roll of CVC rolling mill with parabolic chamfer |
| CN111881528B (en) * | 2020-07-23 | 2023-10-17 | 东北大学 | Method for determining roll shape curve of CVC rolling mill backup roll with parabolic chamfer |
| CN113714305A (en) * | 2021-07-30 | 2021-11-30 | 安阳钢铁股份有限公司 | Method for improving flat plate shape defect |
| CN114147559A (en) * | 2021-11-22 | 2022-03-08 | 江苏沙钢集团有限公司 | Roll shape configuration method and configuration structure of cold-rolled tin plate continuous annealing line temper mill |
| CN114147559B (en) * | 2021-11-22 | 2024-04-30 | 江苏沙钢集团有限公司 | Roll configuration method and configuration structure of cold-rolled tin sheet continuous annealing line leveling machine |
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| CN109719136B (en) | 2021-02-26 |
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