CN203991767U - The withdrawal straightening machine roller box structure of elimination with steel aberration - Google Patents
The withdrawal straightening machine roller box structure of elimination with steel aberration Download PDFInfo
- Publication number
- CN203991767U CN203991767U CN201420454768.1U CN201420454768U CN203991767U CN 203991767 U CN203991767 U CN 203991767U CN 201420454768 U CN201420454768 U CN 201420454768U CN 203991767 U CN203991767 U CN 203991767U
- Authority
- CN
- China
- Prior art keywords
- roll
- roller box
- straightening machine
- backing roll
- withdrawal straightening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses the withdrawal straightening machine roller box structure of a kind of elimination with steel aberration, comprise working roll, intermediate calender rolls, backing roll, the contact area outwardly convex of backing roll and intermediate calender rolls, and the middle contact area of described backing roll and the transition of roller end contact site form drum type curve, and the chamfer radius of described roll end is expanded as original 3～5 times.The utility model adopts shaped form roll surface to substitute previous plain-barreled roll, roller box can evenly normally be contacted with intermediate calender rolls at stressed rear support roller, effectively avoid the inhomogeneous stress concentration phenomenon of the stressed rear appearance of backing roll, eliminate the impact of withdrawal straightening machine roller box on belt steel surface aberration, the service life of greatly having improved withdrawal straightening machine roller box.
Description
Technical field
The utility model relates to the withdrawal straightening machine of band system, refers to particularly the withdrawal straightening machine roller box structure of a kind of elimination with steel aberration.
Background technology
When cold-rolling galvanization unit is produced high-grade home appliance panel, owing to requiring belt steel surface almost to approach zero-fault, the aberration occurring after withdrawal straightening machine with steel is also judged to defective work.This aberration frontlighting is invisible and without feel, needing backlight 45 to spend just can see.Even after process equipment is adjusted, this aberration still cannot thoroughly be eliminated, and can only weaken, thereby have a strong impact on product quality.
Withdrawal straightening machine is to utilize bending roll box and smoothing roll box to produce the bending stress of stack and tension and the method for aligning that makes to produce with steel distortion.Bending stress, by control distortion on roller with steel, ensures to reach plastic deformation by necessary tension force.And tensile stress can be adjusted the glacing flatness poor with steel, shorter longitudinal fiber is applied to higher tension force and extend.Band steel is through after withdrawal straightening machine, can thoroughly eliminate plate face unrestrained limit, shape wave, song and slight camber waft, thereby greatly improve the glacing flatness of thin plate, also can eliminate yield point elongation and the formation that stops skid wire with steel simultaneously, made good outward appearance and processing characteristics for steel plate tool.
The withdrawal straightening machine now generally using is generally made up of two bending roll boxes and a smoothing roll box.Wherein, as shown in Figure 1, roller box is roughly made up of working roll 1, intermediate calender rolls 2, backing roll 3.As shown in Figure 2, supporting 2, two intermediate calender rolls 2 of two intermediate calender rolls by three groups of backing rolls 3 and supporting a working roll 1, by working roll 1 to band steel effect.Every group of backing roll 3 is made up of some little backing roll segmentations respectively.As shown in Figure 3, backing roll 3 is plane with the contact-making surface of intermediate calender rolls 2 and working roll 1, that is, and and plain-barreled roll.As shown in Figure 4, in use, backing roll 3 is inhomogeneous with the contact area stress distribution of intermediate calender rolls 2 and working roll 1, the roller end stress of backing roll 3 is concentrated, the stress of zone line is little, like this, and on withdrawal straightening machine roller box after machine a couple of days, the roller end of each little backing roll 3 can exert an influence to intermediate calender rolls 2 and the corresponding region of working roll 1, makes the corresponding region of intermediate calender rolls 2 and working roll 1 produce roughness abnormal belt and aberration abnormal belt.In the time of band steel process withdrawal straightening machine, be subject to the impact of pulling force and pressure, the roughness abnormal belt on working roll and aberration abnormal belt can exert an influence to the band corresponding region of steel, thereby the corresponding region of belt steel surface just there will be chromatic aberration defect.
In order to ensure the normal production of high-grade surface requirements band steel, conventionally, the withdrawal straightening machine roller box of new upper machine uses about 3 days, in roller box, working roll and intermediate calender rolls surface all can produce region damage-abnormal roughness band in various degree, and then be copied to belt steel surface and caused the problem that occurs aberration with steel, while making to produce high-grade surface band steel the service life of roller box short, change frequent.
Summary of the invention
The purpose of this utility model will overcome the existing deficiency of prior art exactly, based on to the different region of stress concentration that distributing on the body of roll after existing withdrawal straightening machine roller box inner support roller group stress deformation under normal operating conditions, provide the withdrawal straightening machine roller box structure of a kind of elimination with steel aberration.
For achieving the above object, the withdrawal straightening machine roller box structure of the designed elimination of the utility model with steel aberration, comprise working roll, intermediate calender rolls, backing roll, its special feature is: the contact area of described backing roll and intermediate calender rolls is three sections of outwardly convex curvilinear structures, and the middle contact area of described backing roll and roller end contact site seamlessly transit and form drum type curved surface, and described roller end contact site is large radius rounded corner.
Further, the length of described backing roll is 150mm, and the drum type curved design radius in the middle of it is 7500mm, and the middle peak of described drum type curved surface is 0.4mm with respect to the convexity amount of both sides minimum point.
Further, the large radius rounded corner R=10mm of described roller end contact site.
The beneficial effects of the utility model are: adopt shaped form roll surface to substitute previous plain-barreled roll, roller box can evenly normally be contacted with intermediate calender rolls at stressed rear support roller, effectively avoid the inhomogeneous stress concentration phenomenon of the stressed rear appearance of backing roll, the conventional region of stress concentrations such as the roller end to backing roll have carried out effective Transition Design, after three sections of curves of the backing roll body of roll are merged, in the time of bear external force, each position is stressed relatively even, greatly reduce the damage of intermediate calender rolls in the pair roller box of stress concentration portion position, no longer there is alternatively distributed abnormal roughness band in the region that intermediate calender rolls and working roll roll surface are answered in contrast, the impact of final elimination withdrawal straightening machine roller box on belt steel surface aberration.The utility model in effectively eliminating high-grade belt steel surface chromatic aberration defect, the service life of greatly having improved withdrawal straightening machine roller box.
Brief description of the drawings
Fig. 1 is the structural representation of existing roller box.
Fig. 2 is the local structure for amplifying schematic diagram of the section of existing roller box.
Fig. 3 is the structural representation of backing roll in existing roller box.
Fig. 4 is the contact area stress envelope of backing roll in existing roller box.
Fig. 5 is the structural representation of backing roll in the roller box after the utility model improves.
Fig. 6 is the contact area stress envelope of backing roll in the roller box after the utility model improves.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Shown in Fig. 1～4, existing roller box has been done detailed introduction in background technology, repeats no more in this.
Shown in Fig. 5, eliminate the withdrawal straightening machine roller box structure with steel aberration, comprise working roll 1, intermediate calender rolls 2, backing roll 3, backing roll 3 is three sections of outwardly convex curvilinear structures with the contact area of intermediate calender rolls 2, and middle contact area 3.1 and the roller end contact site 3.2 of described backing roll 3 seamlessly transit and form drum type curved surface, roll end 3.2 is large radius rounded corner, R=10mm.The length of backing roll 3 is 150mm, and the drum type curved design radius in the middle of it is 7500mm, and the middle peak of drum type curved surface is 0.4mm with respect to the convexity amount of both sides minimum point.
After roller box normal pressure, finally act on the body of roll of backing roll 3 by reach working roll 1, intermediate calender rolls 2 with steel.The body of roll material of backing roll 3 is 100Cr6, and elasticity modulus of materials is 160GPa, and withdrawal straightening machine region strip tension is 50KN, and the stressed cornerite of withdrawal straightening machine roller box is 50 degree, finally calculates in the time that withdrawal straightening machine is normally worked, and the dependent variable of single backing roll 3 is 0.38mm left and right.This shows, in the time that withdrawal straightening machine is normally worked, in roller box each backing roll 3 after stressed with intermediate calender rolls 2 just in time level contact, thereby avoid the flat-roll type backup roll 3 in existing roller box to occur deformation at stressed rear middle part, cause backing roll 3 two ends to contact with the large stress of intermediate calender rolls 2, finally intermediate calender rolls 2 respective regions are caused to damage.As shown in Figure 6, after improving, backing roll 3 roll surface stress distribution are even, without obvious stress concentration portion position, little to the damage of intermediate calender rolls 2.
Specially treated is carried out in the end of backing roll 3, the chamfer radius of roll end 3.2 is expanded, the abnormal damage can make backing roll 3 normally contact with intermediate calender rolls 2 time is down to minimum, prevents because body of roll curve is after changing because size difference causes new abnormal contact area.
Structure of the present utility model is used and proves through scene; withdrawal straightening machine roller box can effectively be protected intermediate calender rolls 2 and working roll 1 using on the machine in process, the working roll 1 roll surface state that makes finally to contact with the strip keep for a long time roughness evenly, without the kilter of regional area damage.In the time producing the steel band on high-grade surface, steel strip surface can not produce such as: the mass defects such as aberration, impression, while producing high-grade surface band steel, can be increased to 20 days the service life of roller box by 3 days.
Claims (3)
1. the elimination withdrawal straightening machine roller box structure with steel aberration, comprise working roll (1), intermediate calender rolls (2), backing roll (3), it is characterized in that: described backing roll (3) is three sections of outwardly convex curvilinear structures with the contact area of intermediate calender rolls (2), and the middle contact area (3.1) of described backing roll (3) seamlessly transits and forms drum type curved surface with roller end contact site (3.2), and described roller end contact site (3.2) is large radius rounded corner.
2. the withdrawal straightening machine roller box structure of elimination according to claim 1 with steel aberration, it is characterized in that: the length of described backing roll (3) is 150mm, drum type curved design radius in the middle of it is 7500mm, and the middle peak of described drum type curved surface is 0.4mm with respect to the convexity amount of both sides minimum point.
3. the withdrawal straightening machine roller box structure of elimination according to claim 1 and 2 with steel aberration, is characterized in that: the large radius rounded corner R=10mm of described roller end contact site (3.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420454768.1U CN203991767U (en) | 2014-08-13 | 2014-08-13 | The withdrawal straightening machine roller box structure of elimination with steel aberration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420454768.1U CN203991767U (en) | 2014-08-13 | 2014-08-13 | The withdrawal straightening machine roller box structure of elimination with steel aberration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203991767U true CN203991767U (en) | 2014-12-10 |
Family
ID=52031833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420454768.1U Expired - Fee Related CN203991767U (en) | 2014-08-13 | 2014-08-13 | The withdrawal straightening machine roller box structure of elimination with steel aberration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203991767U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604378A (en) * | 2018-12-24 | 2019-04-12 | 杭州恒创机电有限公司 | Stretch bending-straightening machine |
| CN112605165A (en) * | 2020-12-30 | 2021-04-06 | 扬州江冶喷雾系统有限公司 | High-efficient continuous casting continuous straightening draws straightening machine device |
-
2014
- 2014-08-13 CN CN201420454768.1U patent/CN203991767U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109604378A (en) * | 2018-12-24 | 2019-04-12 | 杭州恒创机电有限公司 | Stretch bending-straightening machine |
| CN112605165A (en) * | 2020-12-30 | 2021-04-06 | 扬州江冶喷雾系统有限公司 | High-efficient continuous casting continuous straightening draws straightening machine device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105268746B (en) | A kind of levelling method of hot rolling acid-cleaning plate surface cross breaks defect | |
| CN102581165B (en) | Continuous cold-roll forming method for stainless steel side wall bottom edge beam | |
| CN101716608A (en) | Plate shape control method of hot rolling thin checkered plates | |
| CN102189109B (en) | Modification configuration finishing roll group and modification configuration method thereof | |
| CN102172629B (en) | Roll profile control method for CVC-6 leveling machine set | |
| CN101954394B (en) | Continuous roll cold bending forming method for stainless steel corrugated plates | |
| CN203991767U (en) | The withdrawal straightening machine roller box structure of elimination with steel aberration | |
| CN109332387B (en) | Temper mill for preventing middle wave shape, production system and production method | |
| CN103071703A (en) | Section steel straightening device and method | |
| CN201231246Y (en) | Working roller for controlling strip-steel edge-drop | |
| CN102430578A (en) | Cold-rolled strip steel flattening device and cold-rolled strip steel cross break eliminating method | |
| Cui et al. | Analysis of Leveling Strategy for a plate Mill | |
| CN207479199U (en) | It is a kind of to be intersected and traversing four-high mill based on roll | |
| CN102581045B (en) | Method for descaling surfaces of metal strips and device | |
| CN102335675B (en) | Work roll capable of improving edge drop control capability | |
| CN112872049B (en) | Matching method for roll shape of special intermediate roll for cold-rolled ultrahigh-strength steel | |
| CN107774779A (en) | A kind of method for increasing special-shaped sheet metal part elongation | |
| CN210023310U (en) | Leveling and straightening machine | |
| CN209407078U (en) | A kind of positive convexity roll shape structure of two middle idler roller of Sendzimir mill | |
| CN102513386A (en) | Emulsion spraying method and emulsion spraying system for producing steel types with yield strength higher than 400MPa | |
| CN103084940B (en) | Method of grinding plate rolling roller through grinding machine | |
| CN102397874A (en) | Method for prolonging service life of high-speed steel roller | |
| CN103551385B (en) | A kind of method improving for six roller reversible cold-rolling mill service lifes | |
| CN202263798U (en) | Planishing device for cold-rolled strip steel | |
| CN203791406U (en) | Cold-rolling strip steel tension straightening machine roller box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170726 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 15 Wuchang, Wuhan Friendship Avenue, No. 999, block A, layer (Wuhan Iron and steel science and technology innovation department), No. 430080, Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20190813 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |