CN102078880B - Cold rolling unit system and implementation method thereof - Google Patents
Cold rolling unit system and implementation method thereof Download PDFInfo
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- CN102078880B CN102078880B CN 201010557397 CN201010557397A CN102078880B CN 102078880 B CN102078880 B CN 102078880B CN 201010557397 CN201010557397 CN 201010557397 CN 201010557397 A CN201010557397 A CN 201010557397A CN 102078880 B CN102078880 B CN 102078880B
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Abstract
The invention relates to the field of strip steel processing, and discloses a cold rolling unit system and an implementation method thereof. According to the cold rolling unit system and the implementation method thereof provided by the invention, when a first working roll of a first roll system is used to phi370 millimeters and cannot be reused, the first working roll can be subjected to secondary quenching, and a reformed second roll system is used as a second working roll for continuous operation. When a second middle roll of the reformed second roll system is used to phi450 millimeters and cannot be reused, the second middle roll can be subjected to secondary quenching, and the first roll system is used as a first middle roll for continuous operation. When the diameter usage range of the working roll is enlarged to be between 400 and 340 millimeters and the usage range of the middle roll is enlarged to be between 485 and 415 millimeters, the service lives of the working roll and the middle roll are prolonged, the old is changed into the new, and the production cost is reduced.
Description
Technical field
The present invention relates to be with the steel manufacture field, in particular a kind of cold rolling unit system and its implementation.
Background technology
Along with the rapid development of modern industry, the fields such as industry, building and civilian household electrical appliances flourish, increasing to the product demand of cold-strip steel.And the cold rolling unit use that is used for processing gets more and more.Cold rolling unit mainly passes through working roll to the processing with steel, so maximum to the wearing and tearing of working roll.
But, its working roll utilization rate of the cold rolling unit of prior art is not high, the diameter of existing working roll may wear to the 370mm(millimeter) just can not re-use, just can not re-use when namely the working roll scope of application of prior art is φ 400/ φ 370mm, can only scrap processing.Like this, along with the passing of production time, the working roll that need scrap is more and more, and processing cost also can't reduce.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of cold rolling unit system and its implementation, the first working roll of using is re-used, prolonged the service life of working roll and intermediate calender rolls, reusing becomes new, has reduced production cost.
Technical scheme of the present invention is as follows:
A kind of cold rolling unit system wherein, comprises first set roller system and the second cover roller system of standby usage each other, and is the first roll chock, the second roll chock that is used with described first set roller system, the second cover roller respectively; Described first set roller is to be installed on the frame by the first roll chock, and described the second cover roller system is installed on the frame by the second roll chock;
Described first set roller is to comprise two the first working rolls, two first intermediate rolls, two the first backing rolls; Be symmetricly set on respectively on the described frame by described the first roll chock; Described first intermediate roll dwindles roller and directly re-uses by carrying out secondary quenching with the second intermediate calender rolls of crossing;
Described the second cover roller system comprises two the second working rolls, two the second intermediate calender rolls, two the second backing rolls; Be symmetricly set on respectively on the described frame by described the second roll chock; Described the second working roll dwindles roller and directly re-uses by carrying out secondary quenching with the first working roll of crossing; The setting of staggering of the spindle nose of described the second working roll;
Wherein, the diameter of described the first working roll, first intermediate roll is respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described the second working roll, the second intermediate calender rolls is respectively: 370-340 millimeter, 485-450 millimeter; The diameter range of described the first backing roll is: the 1180-1250 millimeter; The diameter range of described the second backing roll is: the 1170-1240 millimeter.
A kind of cold rolling unit system implementation method wherein, comprises step:
A, the first set roller system that standby usage each other is set and the second cover roller system, and the first roll chock, the second roll chock that are used with described first set roller system, the second cover roller system respectively; Described first set roller is to be installed on the frame by the first roll chock, and described the second cover roller system is installed on the frame by the second roll chock;
It is to comprise two the first working rolls, two first intermediate rolls, two the first backing rolls that described first set roller is set; Be symmetricly set on respectively on the described frame by described the first roll chock;
Described the second cover roller system comprises two the second working rolls, two the second intermediate calender rolls, two the second backing rolls; Be symmetricly set on respectively on the described frame by described the second roll chock;
Wherein, the diameter of described the first working roll, first intermediate roll is respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described the second working roll, the second intermediate calender rolls is respectively: 370-340 millimeter, 485-450 millimeter; The diameter range of described the first backing roll is: the 1180-1250 millimeter; The diameter range of described the second backing roll is: the 1170-1240 millimeter;
B, will carry out secondary quenching with the first working roll of crossing, and dwindle the roller footpath and again make the second working roll, and with the setting of staggering of the spindle nose of described the second working roll;
C, will carry out secondary quenching with the second intermediate calender rolls of crossing, and dwindle the roller footpath and again make first intermediate roll.
Beneficial effect: a kind of cold rolling unit system provided by the present invention and its implementation, owing to adopted the first working roll when first set roller system to use φ 370mm time spent again, just can carry out secondary quenching to the first working roll, use improved the second cover roller system and work on as the second working roll.And use φ 450mm time spent again when the second intermediate calender rolls of the second cover roller system, and just can carry out secondary quenching to the second intermediate calender rolls, using the first set roller is to work on as first intermediate roll.Be that the working roll scope of application is expanded as 400～340mm, the intermediate calender rolls scope of application is expanded as 485～415mm; So just prolonged the service life of working roll and intermediate calender rolls, reusing becomes new, has reduced production cost.
And the second work roll diameter of improved the second cover roller system reduces, and rolling force and moment is reduced, and roll elastic flattening reduces, and can bear and roll the large roll-force of Bao Shigeng, has increased reduction in pass.
Description of drawings
Fig. 1 is that the cold rolling unit system of the embodiment of the invention is installed first set roll system structure schematic diagram.
Fig. 2 is the second cover roller system and adaptive roll bearing support structure schematic diagram of the embodiment of the invention.
Fig. 3 is the universal-joint spindle structural representation that need change when using the second cover roller to be of the embodiment of the invention.
The specific embodiment
A kind of cold rolling unit system provided by the present invention and its implementation, clearer, clear and definite for making purpose of the present invention, technical scheme and effect, the present invention is described in more detail referring to the accompanying drawing examples.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
A kind of cold rolling unit system of the embodiment of the invention, as shown in Figure 1, comprise frame 900, and be fixed on the roll chock 910 that each roll be used for to be installed on the described frame 900, its also comprise each other the first set roller of standby usage be 100(as shown in Figure 1) and second overlap roller be 200(as shown in Figure 2).
As shown in Figure 1, described first set roller is 100 to be installed on the frame 900 by a pair of the first roll chock 110 adaptive with it.Same described the second cover roller is 200 to be provided with specially a pair of with it adaptive the second roll chock 210, and as shown in Figure 2, described the second cover roller is 200 to be installed on the frame 900 by the second roll chock 210.
Wherein, as shown in Figure 1, described first set roller is 100 to comprise two the first working rolls 101 and 102, two first intermediate rolls 103 and 104, two the first backing rolls 105 and 106; Be symmetricly set on respectively on the described frame by described the first roll chock 110;
Equally, as shown in Figure 2, described the second cover roller is 200 to comprise two the second working rolls 201 and 202, two the second intermediate calender rolls 203 and 204, two the second backing rolls 205 and 206; Be used for being symmetricly set on respectively described frame 900 by described the second roll chock 210; Namely when the first set roller be after 100 usefulness are crossed, can the second cover roller be 200 by described the second roll chock 210 respectively symmetry be installed in described frame 900, work on.
Among the present invention, described the first working roll 101 and 102 diameter range are preferably the 400-370mm(millimeter), first intermediate roll 103 and 104 diameter range are preferably 450-415mm, and the first backing roll 105 and 106 diameter range are preferably: 1180-1250mm;
And the diameter range of described the second working roll 201 and 202 is preferably the 370-340 millimeter, the second intermediate calender rolls 203 and 204 diameter range be preferably: the 485-450 millimeter, the second backing roll 205 and 206 diameter range are preferably: 1170-1240mm.
Like this, described the second working roll 201 and 202 just can be by carrying out secondary quenching with the first working roll 101 and 102 of crossing, outside guaranteeing that its working roll body of roll is constant, other place will be done accordingly with a tree name the second roll chock 210 and be dwindled, dwindling roller directly re-uses, quenching hardness is the same with former the first working roll with the degree of depth, does not affect production and application.
And described first intermediate roll 103 and 104 just can dwindle roller directly to re-use by carrying out secondary quenching with the second intermediate calender rolls 203 and 204 of crossing, and quenching hardness is the same with former the second intermediate calender rolls with the degree of depth, does not affect production and application.
For example, in the specific implementation, because its working roll utilization rate of cold rolling unit of prior art is not high, the diameter of existing working roll may wear to the 370mm(millimeter) just can not re-use, just to adopt two cover rollers be Parallel running by transforming rear milling train in the present invention: adopt when the first set roller be the first working roll of 100 (as shown in Figure 1 101 and 102, its diameter range is 400-370mm, use φ 370mm time spent again, do not scrap, and directly the first working roll 101 and 102 is carried out secondary quenching, using improved the second cover roller and be 200 works on as the second working roll (as shown in Figure 2 201 and 202, its diameter range is the 370-340 millimeter).Be that the working roll scope of application is expanded as 400～340mm, like this, can prolong 30 millimeters of service lifes of working roll, reusing becomes new, has reduced production cost.
And when the second cover roller be the second intermediate calender rolls of 200 (as shown in Figure 2 203 and 204, diameter range is the 485-450 millimeter) use φ 450mm time spent again, do not do to scrap yet, directly the second intermediate calender rolls 203 and 204 is carried out secondary quenching, using the first set roller and be 100 works on as first intermediate roll (as shown in Figure 1 103 and 104, its diameter range is 450-415mm).Equally, the intermediate calender rolls scope of application is expanded as 485～415mm; In the same like this service life that prolongs intermediate calender rolls, reusing becomes new, has reduced production cost.
Therefore, improved the second cover roller is that the second work roll diameter of 200 has reduced 30mm, the second intermediate calender rolls enlarged diameter 35mm, be that Parallel running then the working roll roller scope of application directly are increased to: φ 340 ~ φ 400mm if first set roller system and the second cover roller are two cover rollers, the scope of application in intermediate calender rolls roller footpath is increased to: φ 415 ~ φ 480mm, the increasing of roller footpath scope has just prolonged the service life of roll, reaches to reduce the purpose that the roller consumption reduces production cost.
Improved the second cover roller is 200, its working roll minimum can use φ 340mm, the backing roll minimum can use the original minimum of φ 1170mm(can only use φ 1180mm), intermediate calender rolls is when using minimum diameter φ 450mm, can also use with the first set roller system that does not transform, all increased the service life that is equivalent to like this intermediate calender rolls and backing roll.And the second work roll diameter of improved the second cover roller system reduces, and rolling force and moment is reduced, and roll elastic flattening reduces, and can bear to roll the large roll-force of Bao Shigeng, has increased reduction in pass.
Namely the second cover roller is that relative first set roller is that 100 transformation comprises:
1, the working roll footpath changes φ 370/ φ 340mm into by φ 400/ φ 370mm;
2, intermediate calender rolls roller footpath adds greatly φ 485/ φ 450mm by φ 450/ φ 415mm;
3, the backing roll footpath changes φ 1170/ φ 1240mm into by φ 1180/ φ 1250mm
Equally, also need transforming of the second roll chock 210, be 100 to compare with the second cover roller, because the variation of the second working roll 201 and the 202 and second intermediate calender rolls 203 and 204 diameters, all will again make with the bearing block that working roll and intermediate calender rolls are adaptive, the rolling bearing of the second working roll has reduced a specification, and intermediate calender rolls is still continued to use original rolling bearing, in order to reduce the specification quantity of bearing spare part, as shown in Figure 2 210.
In addition, as shown in Figure 1, using the first set roller is that 100 universal- joint spindle 901 and 902 be arranged in parallel.Be that 200 universal-joint spindle also need be transformed and use the second cover roller, as shown in Figure 3, because the reducing of the second work roll diameter of the second cover roller system, upper bottom spindle spindle nose interference when avoiding the pony roll footpath will be staggered spindle nose.Referring to Fig. 3, top roll universal-joint spindle (be equivalent to Fig. 1 902) length is constant still to be 2600mm, and lower roll universal-joint spindle (quite 901 of Fig. 1) contraction in length is 2217mm.
Simultaneously, the spindle holder device also need be transformed, because the reducing of the working roll roller footpath of the second cover roller system, the upper working rolls and lower working rolls spacing has reduced 30mm in the roll change position, so want the clamp of abutment shaft clamping device to appropriately adjust.
And for backing roll roller of the present invention footpath, improved second roller is 200, when working roll and intermediate calender rolls roller directly be maximum: the second working roll D
Working roll=370mm; The second intermediate calender rolls D
Intermediate calender rolls=485mm
Then the second backing roll roller footpath can not surpass 1240mm, surpasses 1240mm with the scope of application of over balance cylinder.
And as working roll and intermediate calender rolls roller footpath: D
Working roll+ D
Intermediate calender rollsDuring≤845mm, can use the backing roll in big roller footpath namely: 1250mm.As working roll and intermediate calender rolls roller footpath: D
Working roll+ D
Intermediate calender rollsDuring 〉=850mm, can use minimum support roller footpath namely: 1160mm.
Based on the cold rolling unit system of above-described embodiment, the embodiment of the invention also provides a kind of cold rolling unit system implementation method, mainly may further comprise the steps:
The first step, referring to Fig. 1 and Fig. 2, it is that the 100 and second cover roller is 200 that the first set roller of standby usage is set each other, and is that the 100, second cover roller is 200 the first roll chocks 110 that are used, the second roll chock 210 with described first set roller respectively; Described first set roller is 100 to be installed on the frame 900 by the first roll chock 110, and described the second cover roller is 200 to be installed on the frame 900 by the second roll chock 210;
Described first set roller is set is 100 and comprise two the first working rolls 101 and 102, two first intermediate rolls 103 and 104, two the first backing rolls 105 and 106; Be symmetricly set on respectively on the described frame 900 by described the first roll chock 110;
Described the second cover roller is 200 to comprise two the second working rolls 201 and 202, two the second intermediate calender rolls 203 and 204, two the second backing rolls 205 and 206; Be symmetricly set on respectively on the described frame 900 by described the second roll chock 210;
Wherein, described the first working roll 101 and 102, first intermediate roll 103 and 104 diameter are respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described the second working roll 201 and the 202, second intermediate calender rolls 203 and 204 is respectively: 370-340 millimeter, 485-450 millimeter;
Second step, will carry out secondary quenching with the first working roll 101 and 102 of crossing, and dwindle the roller footpath and again make the second working roll 201 and 202;
The 3rd step, will carry out secondary quenching with the second intermediate calender rolls 203 and 204 of crossing, and dwindle the roller footpath and again make first intermediate roll 103 and 104.
In sum: a kind of cold rolling unit system provided by the present invention and its implementation, owing to adopted the first working roll when first set roller system to use φ 370mm time spent again, just can carry out secondary quenching to the first working roll, use improved the second cover roller system and work on as the second working roll.And use φ 450mm time spent again when the second intermediate calender rolls of the second cover roller system, and just can carry out secondary quenching to the second intermediate calender rolls, using the first set roller is to work on as first intermediate roll.Be that the working roll scope of application is expanded as 400～340mm, the intermediate calender rolls scope of application is expanded as 485～415mm; So just prolonged the service life of working roll and intermediate calender rolls, reusing becomes new, has reduced production cost.
And the second work roll diameter of improved the second cover roller system reduces, and rolling force and moment is reduced, and roll elastic flattening reduces, and can bear and roll the large roll-force of Bao Shigeng, has increased reduction in pass.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion that all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (2)
1. a cold rolling unit system is characterized in that, comprises first set roller system and the second cover roller system of standby usage each other, and is the first roll chock, the second roll chock that is used with described first set roller system, the second cover roller respectively; Described first set roller is to be installed on the frame by the first roll chock, and described the second cover roller system is installed on the frame by the second roll chock;
Described first set roller is to comprise two the first working rolls, two first intermediate rolls, two the first backing rolls; Be symmetricly set on respectively on the described frame by described the first roll chock; Described first intermediate roll dwindles roller and directly re-uses by carrying out secondary quenching with the second intermediate calender rolls of crossing;
Described the second cover roller system comprises two the second working rolls, two the second intermediate calender rolls, two the second backing rolls; Be symmetricly set on respectively on the described frame by described the second roll chock; Described the second working roll dwindles roller and directly re-uses by carrying out secondary quenching with the first working roll of crossing; The setting of staggering of the spindle nose of described the second working roll;
Wherein, the diameter of described the first working roll, first intermediate roll is respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described the second working roll, the second intermediate calender rolls is respectively: 370-340 millimeter, 485-450 millimeter; The diameter range of described the first backing roll is: the 1180-1250 millimeter; The diameter range of described the second backing roll is: the 1170-1240 millimeter.
2. a cold rolling unit system implementation method is characterized in that, comprises step:
A, the first set roller system that standby usage each other is set and the second cover roller system, and the first roll chock, the second roll chock that are used with described first set roller system, the second cover roller system respectively; Described first set roller is to be installed on the frame by the first roll chock, and described the second cover roller system is installed on the frame by the second roll chock;
It is to comprise two the first working rolls, two first intermediate rolls, two the first backing rolls that described first set roller is set; Be symmetricly set on respectively on the described frame by described the first roll chock;
Described the second cover roller system comprises two the second working rolls, two the second intermediate calender rolls, two the second backing rolls; Be symmetricly set on respectively on the described frame by described the second roll chock;
Wherein, the diameter of described the first working roll, first intermediate roll is respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described the second working roll, the second intermediate calender rolls is respectively: 370-340 millimeter, 485-450 millimeter; The diameter range of described the first backing roll is: the 1180-1250 millimeter; The diameter range of described the second backing roll is: the 1170-1240 millimeter;
B, will carry out secondary quenching with the first working roll of crossing, and dwindle the roller footpath and again make the second working roll, and with the setting of staggering of the spindle nose of described the second working roll;
C, will carry out secondary quenching with the second intermediate calender rolls of crossing, and dwindle the roller footpath and again make first intermediate roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010557397 CN102078880B (en) | 2010-11-24 | 2010-11-24 | Cold rolling unit system and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010557397 CN102078880B (en) | 2010-11-24 | 2010-11-24 | Cold rolling unit system and implementation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102078880A CN102078880A (en) | 2011-06-01 |
| CN102078880B true CN102078880B (en) | 2013-05-29 |
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| CN 201010557397 Expired - Fee Related CN102078880B (en) | 2010-11-24 | 2010-11-24 | Cold rolling unit system and implementation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3766595A1 (en) | 2019-07-17 | 2021-01-20 | Primetals Technologies Austria GmbH | Cold rolling of rolled material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4771626A (en) * | 1986-03-14 | 1988-09-20 | Nippon Steel Corporation | Apparatus for roll-changing |
| CN1091061A (en) * | 1993-02-15 | 1994-08-24 | 日铁建材工业株式会社 | Standby more changing device of roll and insert integral roll |
| CN1986088A (en) * | 2006-12-22 | 2007-06-27 | 中冶南方工程技术有限公司 | Method of raising utilization rate of roll |
| CN101336143A (en) * | 2005-11-25 | 2008-12-31 | 西门子Vai金属科技有限公司 | Method of managing cylinders in a rolling facility and installation for implementing same |
| CN201871532U (en) * | 2010-11-24 | 2011-06-22 | 佛山市高明基业冷轧钢板有限公司 | Cold rolling unit system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2812423B2 (en) * | 1994-04-07 | 1998-10-22 | 住友金属工業株式会社 | Roll changer for 6-high rolling mill |
| CN101786103A (en) * | 2009-11-20 | 2010-07-28 | 无锡瑞佳精机有限公司 | Improved cardan shaft joint structure for six-roller mill |
-
2010
- 2010-11-24 CN CN 201010557397 patent/CN102078880B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4771626A (en) * | 1986-03-14 | 1988-09-20 | Nippon Steel Corporation | Apparatus for roll-changing |
| CN1091061A (en) * | 1993-02-15 | 1994-08-24 | 日铁建材工业株式会社 | Standby more changing device of roll and insert integral roll |
| CN101336143A (en) * | 2005-11-25 | 2008-12-31 | 西门子Vai金属科技有限公司 | Method of managing cylinders in a rolling facility and installation for implementing same |
| CN1986088A (en) * | 2006-12-22 | 2007-06-27 | 中冶南方工程技术有限公司 | Method of raising utilization rate of roll |
| CN201871532U (en) * | 2010-11-24 | 2011-06-22 | 佛山市高明基业冷轧钢板有限公司 | Cold rolling unit system |
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