CN107413891A - A kind of clapboard straightening process based on cooperation roller system - Google Patents
A kind of clapboard straightening process based on cooperation roller system Download PDFInfo
- Publication number
- CN107413891A CN107413891A CN201710311982.XA CN201710311982A CN107413891A CN 107413891 A CN107413891 A CN 107413891A CN 201710311982 A CN201710311982 A CN 201710311982A CN 107413891 A CN107413891 A CN 107413891A
- Authority
- CN
- China
- Prior art keywords
- clapboard
- roller system
- roll neck
- aligning
- straightening
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
Abstract
The present invention discloses a kind of clapboard straightening process based on cooperation roller system, and using double roller system straightener, large and small roll neck roller system is arranged separately on entrance side and outlet side, concretely comprises the following steps：First, the drafts according to corresponding to wedge-shaped board parameter calculates different thicknesss of slab；2nd, the lower roll angle of inclination and upper roller angle of inclination of the large and small roll neck replaceable straightening roller system of straightener are adjusted according to the clapboard gradient；3rd, thickness of slab subregion is carried out to clapboard according to wedge-shaped board parameter, clapboard is in turn divided into thin plate area, transition region and three, slab area plate section；4th, according to clapboard thickness of slab subregion, different plate sections are aligned using differential roller system, during aligning, clapboard thin plate area is introduced into straightener, and the large and small roll neck replaceable straightening roller system division of labor coordinates the aligning for completing clapboard difference plate section.The present invention solves the problems, such as that roller number roll neck should change and change according to thickness of slab during clapboard aligning, make drafts meet clapboard straightening process requirement with roller number roll neck, can align the qualified clapboard of mass.
Description
Technical field
The present invention relates to sheet material to align field, and in particular to a kind of based on the clapboard straightening process for coordinating roller system.
Background technology
Clapboard is a kind of longitudinal variable cross-section plate, can optimize the design of the structure sections such as bridge, hull, building, reduces steel
Timber-used amount, reduce welding times, mitigate the building weight such as bridge, before shipbuilding and bridge industry have very wide application
Scape, the worldwide sustainable growth of its demand, but its aligning problem are still a technical barrier.Famous metallurgical equipment in the world
Manufacturing firm is proposed " third generation straightener " one after another, but the object aligned is still the constant sheet material of thickness of slab, it is impossible to wedge
This Varying Thickness Plates of shape plate are aligned.First, it is poor to there is thickness of slab in clapboard both sides, when thickness of slab difference a to timing, it is necessary to
Line more roll change system, roller system parameter is set to meet that clapboard thickness of slab changes；Secondly, for clapboard, its thickness is variable in aligning,
The drafts of on-line control smoothing roll is needed, with existing straightener align obviously unreasonable.Because clapboard was aligned
Journey is a dynamic changing process, it is necessary to study clapboard straightening theory technology, improves existing equipment for straightening or develops tool
The Novel straightener of standby dynamic adjustment function, to meet the requirement in terms of product glacing flatness.
The content of the invention
The present invention is intended to provide it is a kind of based on the clapboard straightening process for coordinating roller system, can be before straightening quality be met
Put aligning clapboard.
The object of the invention is achieved through the following technical solutions：A kind of clapboard straightening process based on cooperation roller system, is used
Double roller system straightener, double roller system include big roll neck replaceable straightening roller system and small roll neck replaceable straightening roller system, big roll neck replaceable straightening roller system be arranged in into
Mouth side, small roll neck replaceable straightening roller system are arranged in outlet side, and the smoothing roll of large and small roll neck replaceable straightening roller system can be according to wedge in straightening process
The change of shape plate thickness of slab carries out online pressure regulation, wherein the upper roller liftable of small roll neck replaceable straightening roller system is so as to realizing that small roll neck is rectified
Straight roller system puts into/work is exited, drafts required during clapboard aligning is realized, is comprised the following steps that：
(1) drafts according to corresponding to wedge-shaped board parameter calculates different thicknesss of slab；
(2) the lower roll angle of inclination of the large and small roll neck replaceable straightening roller system of straightener is adjusted according to the clapboard gradient and upper roller tilts
Angle；
(3) thickness of slab subregion is carried out to clapboard according to wedge-shaped board parameter, clapboard is in turn divided into thin plate area, transition region
With three, slab area plate section；
(4) according to clapboard thickness of slab subregion, different plate sections are aligned using differential roller system, during aligning, clapboard is thin
Plate area is introduced into straightener, and the large and small roll neck replaceable straightening roller system division of labor coordinates the aligning for completing clapboard difference plate section.
The clapboard straightening process of the present invention uses two kinds of replaceable straightening roller systems of size roll neck, big roll neck replaceable straightening roller system be arranged in into
Mouth side, small roll neck replaceable straightening roller system are arranged in outlet side, and replaceable straightening roller system adjusts angle of inclination, aligning according to the clapboard gradient before aligning
When clapboard first enter from big roll neck replaceable straightening roller system, entrance side can bear bigger pressure using big roll neck, while also meet etc.
The perfect condition of Intensity Design；When aligning thin plate area, clapboard first passes through big roll neck roller system pre-straightening, then by small roll neck roller system
Align again；When aligning transition region, small roll neck replaceable straightening roller system upper roller leaves work one by one by arrival end to the port of export, until pony roll
Footpath replaceable straightening roller system upper roller all leaves work；When aligning slab area, small roll neck replaceable straightening roller system does not work, and only stays big roll neck smoothing roll
It is work until aligning terminates.
The beneficial effects of the invention are as follows：
1st, compared with existing straightener, clapboard roller system of straightening machine of the invention is a kind of double replaceable straightening roller systems of cooperating
Structure, smoothing roll can depress adjustment online in straightening process, drafts is met clapboard straightening process requirement.
2nd, clapboard straightening process of the invention, can be realized according to the change of thickness of slab by On-line matching replaceable straightening roller system
The small roll neck aligning of thin plate multiple roll, the big roll neck aligning of slab, the qualified clapboard of aligning mass.
3rd, clapboard straightening process of the invention, when aligning clapboard thin plate area, sheet material is introduced into big roll neck roller system and entered
Row pre-straightening, big drafts is carried out at big roll neck smoothing roll, small drafts is carried out at small roll neck smoothing roll, can be made big
Roll neck smoothing roll bears big straightening force, and small roll neck smoothing roll bears small straightening force, while also pursues the reason of uniform strength design
Think state.
4th, the present invention can not only be applied to clapboard aligning, it can also be used to the aligning of conventional cut deal, versatile, aligning
Sheet material specification limit it is wider than existing straightener.
Brief description of the drawings
Fig. 1 is the replaceable straightening roller system schematic diagram for the present invention.
Fig. 2 is the process chart of the present invention.
Fig. 3 is one piece of clapboard subregion schematic diagram.
Fig. 4 is the integral inclined adjustment schematic diagram of replaceable straightening roller system.
Fig. 5 is aligning clapboard thin plate area schematic diagram.
Fig. 6 is aligning clapboard transition region schematic diagram.
Fig. 7 is aligning clapboard slab area schematic diagram.
In figure：The big roll neck replaceable straightening roller systems of 1-, the small roll neck replaceable straightening roller systems of 2-；3- clapboards；3a- thin plates area；3b- transition regions；
3c- slabs area.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be further described：
As shown in figure 1, the embodiment of the present invention is a kind of based on the clapboard straightening process for coordinating roller system, its smoothing roll roller system
Using big roll neck and small two kinds of roller systems of roll neck, big roll neck replaceable straightening roller system 1 is arranged in entrance side, and small roll neck replaceable straightening roller system 2 is arranged in
Outlet side.The smoothing roll of large and small roll neck replaceable straightening roller system can be pressed online in straightening process according to the change of clapboard thickness of slab
Lower regulation, wherein the upper roller liftable of small roll neck replaceable straightening roller system 2 is so as to realize that small roll neck replaceable straightening roller system 2 puts into/exited work, it is real
Required drafts during existing clapboard aligning.
Given sheet material parameter and roller system of straightening machine parameter are as shown in table 1, table 2.
Table 1
Table 2
As shown in Fig. 2 the present invention is a kind of based on the clapboard straightening process for coordinating roller system, specifically can be by as follows during aligning
Step is carried out：
(1) subregion is carried out to clapboard according to wedge-shaped board parameter.
As shown in figure 3, clapboard 3 is divided for three plate sections：Thin plate area 3a (2500mm), transition region 3b (500mm) and thickness
Plate area 3c (2000mm).
(2) drafts according to corresponding to wedge-shaped board parameter calculates different thicknesss of slab.
The clapboard is aligned using linear decrease straightening schemes, when thickness of slab is h, big roll neck replaceable straightening roller system upper roller head roll-ins
Lower amount isUpper roller end roller drafts isSmall roll neck roller
It is that each upper roller drafts is taken asWherein CyFor relative spring-back curvature, CrFor relative residual curvature, σtFor sheet material
Yield strength, E are sheet material modulus of elasticity, l1For big roll neck roller system roll spacing, l2For small roll neck roller system roll spacing.If minimum thickness of slab is in
Lower roll head rollers time of contact is the t=0 moment, and aligning speed is v=200mm/s, can be calculated each roller with time drafts (because small
Roll neck straightening roll press quantity computational methods are identical with big roll neck, and the drafts of big roll neck smoothing roll is only provided in the present embodiment).
Consider the increase of thickness of slab during aligning, each roller there should be one to be shifted up as thickness of slab is increased, can obtain under each roll-in
Displacement function is：
Upper roller head rollers
The roller of upper roller two
The roller of upper roller three
Upper roller end roller
(3) lower roll angle of inclination is adjusted according to the clapboard gradient, while upper roller angle of inclination is adjusted, make its inclination
Angle isAs shown in Figure 4.
(4) according to clapboard thickness of slab subregion, different plate sections are aligned using large and small roller system, during aligning, for ease of stinging
Enter, clapboard sheet section is introduced into straightener, as shown in figure 5, when 2500mm sections before aligning thin plate area, large and small roll neck is rectified
Straight roller system works simultaneously, and big roll neck replaceable straightening roller system plays pre-straightening；As shown in Fig. 6 a, 6b, the 500mm among aligning transition region
Duan Shi, small roll neck replaceable straightening roller system upper roller lift off work one by one by arrival end to the port of export, until on small roll neck replaceable straightening roller system
Roller is all not involved in aligning, to ensure the straightening quality of the stability of this process and clapboard transition region；As shown in fig. 7, when aligning
Behind slab area during 2000mm sections, small roll neck replaceable straightening roller system does not work, and only stays big roll neck replaceable straightening roller system smoothing roll to work, until aligning
Terminate.
Claims (3)
- It is 1. a kind of based on the clapboard straightening process for coordinating roller system, it is characterised in that using double roller system straightener, double roller system includes Big roll neck replaceable straightening roller system and small roll neck replaceable straightening roller system, big roll neck replaceable straightening roller system are arranged in entrance side, small roll neck replaceable straightening roller system arrangement In outlet side, the smoothing roll of large and small roll neck replaceable straightening roller system can be carried out online in straightening process according to the change of clapboard thickness of slab Pressure regulation, wherein the upper roller liftable of small roll neck replaceable straightening roller system is so as to realize that small roll neck replaceable straightening roller system puts into/exited work, it is real Required drafts, is comprised the following steps that during existing clapboard aligning：(1) drafts according to corresponding to wedge-shaped board parameter calculates different thicknesss of slab；(2) the lower roll angle of inclination and upper roller angle of inclination of the large and small roll neck replaceable straightening roller system of straightener are adjusted according to the clapboard gradient；(3) thickness of slab subregion is carried out to clapboard according to wedge-shaped board parameter, clapboard is in turn divided into thin plate area, transition region and thickness Three, plate area plate section；(4) according to clapboard thickness of slab subregion, different plate sections are aligned using differential roller system, during aligning, clapboard thin plate area Straightener is introduced into, large and small roll neck replaceable straightening roller system Dynamic Matching completes the aligning of clapboard difference plate section.
- It is 2. according to claim 1 a kind of based on the clapboard straightening process for coordinating roller system, it is characterised in that in step (4) in, the step of large and small roll neck replaceable straightening roller system division of labor coordinates, is：When aligning thin plate area, large and small roll neck replaceable straightening roller system Work simultaneously, big roll neck replaceable straightening roller system plays pre-straightening；When aligning transition region, small roll neck replaceable straightening roller system upper roller is gradually left Work；When aligning slab area, small roll neck replaceable straightening roller system does not work, and only stays big roll neck replaceable straightening roller system work until aligning terminates.
- It is 3. according to claim 2 a kind of based on the clapboard straightening process for coordinating roller system, it is characterised in that when aligning When crossing area, small roll neck replaceable straightening roller system upper roller lifts off work one by one by arrival end to the port of export, until work all is left, with Ensure the stability of this process and the straightening quality of clapboard transition region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710311982.XA CN107413891A (en) | 2017-05-05 | 2017-05-05 | A kind of clapboard straightening process based on cooperation roller system |
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|---|---|---|---|
| CN201710311982.XA CN107413891A (en) | 2017-05-05 | 2017-05-05 | A kind of clapboard straightening process based on cooperation roller system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967681A (en) * | 2020-07-22 | 2022-01-25 | 上海飞机制造有限公司 | Equipment for processing multi-curvature elastic piece |
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| GB1140936A (en) * | 1967-06-23 | 1969-01-22 | Standard Telephones Cables Ltd | Improvements in or relating to telecommunication exchanges |
| CN1488454A (en) * | 2003-09-04 | 2004-04-14 | 张先荣 | Method for increasing roll-type straightening machine capacity |
| CN104209373A (en) * | 2014-08-18 | 2014-12-17 | 南京钢铁股份有限公司 | Multi-pass curvature decreasing straightening technology |
| CN104668313A (en) * | 2015-01-30 | 2015-06-03 | 燕山大学 | Roller gap adjustment method of seven-roller thick plate straightener |
| JP2015123460A (en) * | 2013-12-26 | 2015-07-06 | Ｊｆｅスチール株式会社 | Straightening method and straightening device of steel plate |
| CN105344751A (en) * | 2015-12-15 | 2016-02-24 | 东北大学 | Compound straightening roll system device and flexible straightening method for cold rolling different-thickness plates |
| CN106391760A (en) * | 2016-10-28 | 2017-02-15 | 燕山大学 | Straightening process for wedge-shaped plate |
-
2017
- 2017-05-05 CN CN201710311982.XA patent/CN107413891A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1140936A (en) * | 1967-06-23 | 1969-01-22 | Standard Telephones Cables Ltd | Improvements in or relating to telecommunication exchanges |
| CN1488454A (en) * | 2003-09-04 | 2004-04-14 | 张先荣 | Method for increasing roll-type straightening machine capacity |
| JP2015123460A (en) * | 2013-12-26 | 2015-07-06 | Ｊｆｅスチール株式会社 | Straightening method and straightening device of steel plate |
| CN104209373A (en) * | 2014-08-18 | 2014-12-17 | 南京钢铁股份有限公司 | Multi-pass curvature decreasing straightening technology |
| CN104668313A (en) * | 2015-01-30 | 2015-06-03 | 燕山大学 | Roller gap adjustment method of seven-roller thick plate straightener |
| CN105344751A (en) * | 2015-12-15 | 2016-02-24 | 东北大学 | Compound straightening roll system device and flexible straightening method for cold rolling different-thickness plates |
| CN106391760A (en) * | 2016-10-28 | 2017-02-15 | 燕山大学 | Straightening process for wedge-shaped plate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967681A (en) * | 2020-07-22 | 2022-01-25 | 上海飞机制造有限公司 | Equipment for processing multi-curvature elastic piece |
| CN113967681B (en) * | 2020-07-22 | 2023-10-13 | 上海飞机制造有限公司 | Equipment for processing multi-curvature elastic piece |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |