CN101829690A - Method for eliminating band steel tail-swing scratching defect - Google Patents
Method for eliminating band steel tail-swing scratching defect Download PDFInfo
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- CN101829690A CN101829690A CN 201010198958 CN201010198958A CN101829690A CN 101829690 A CN101829690 A CN 101829690A CN 201010198958 CN201010198958 CN 201010198958 CN 201010198958 A CN201010198958 A CN 201010198958A CN 101829690 A CN101829690 A CN 101829690A
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- band steel
- swing
- tail
- guide plate
- defect
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Abstract
The invention relates to the technical field of steel rolling processes, in particular to a method for eliminating a band steel tail-swing scratching defect. The invention provides the method for eliminating the band steel tail-swing scratching defect for aiming at the defect that the scratching defect is easily generated when band steel swings the tail in a traditional steel rolling process. The technical scheme has the key points that the method for eliminating the band steel tail-swing scratching defect comprises the following steps of: a. knowing a band steel tail-swing signal by a machine set control system; c. controlling a lifting hydraulic cylinder for supporting a material leading guide plate to elongate, and when the material leading guide plate upwards rotates around the head of a rotating shaft and ascends to a set distance, stopping the action of the lifting hydraulic cylinder, and finally enabling the tail of the material leading guide plate to be disengaged from contacting the band steel. The invention has the advantages that the defect that the band steel is easily scratched when swinging the tail is eliminated, the production quality is ensured, and the method is widely applied to recoiling, longitudinal cutting and transverse cutting machine sets.
Description
Technical field
The present invention relates to the steel rolling process technical field, relate to a kind of method of eliminating band steel tail-swing scratching defect specifically.
Background technology
Referring to Fig. 1, present domestic metallurgy industry cold rolling coil is in crosscut unit whipping process, operation along with unit, the coil of strip coil diameter constantly reduces on the uncoiler 1, be with steel 2 between uncoiler 1, top pinch roll 4, the bottom pinch roll 5 and draw the angle of expecting guide plate 3 and also diminish gradually, in the time of in the coil of strip external diameter reduces to φ 588mm, band steel 2 expects that guide plate 3 afterbodys contact with drawing.Owing to draw the influence of material guide plate 3 afterbody phenol an aromatic plant metioned in ancient books guide plates wearing and tearing, band steel 2 lower surfaces directly contact with the guide plate afterbody that iron is made, and band steel 2 lower surfaces produce scratch defect, about the about 25～40m of defect length.
Summary of the invention
Technical problem to be solved by this invention is: in traditional steel rolling process, the band steel is easy to generate the deficiency of scratch defect when whipping, and a kind of method of eliminating band steel tail-swing scratching defect is provided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of method of eliminating band steel tail-swing scratching defect may further comprise the steps:
A. unit control system detects band steel whipping signal;
C. control to be used to support and draw the lifting hydraulic cylinder elongation of expecting guide plate, expect guide plate upwards rotation of head around the shaft when drawing, when rising to setpoint distance, the feasible material guide plate afterbody disengaging band steel that draws contacts, and lifting hydraulic cylinder stops to move.
Further, between step a and step c, also comprise step:
B. the speed of service with steel is controlled at below the 40m/min.
Further, after step c, also comprise step:
D. contact by setting up at the band steel lower surface of the free roller that draws material guide plate afterbody during with whipping.
Among the step a, when the coil of strip external diameter reduces to φ 588mm, send band steel whipping signal.
Among the step c, described setpoint distance is 5mm.
In the steps d, described free roller adopts elastomeric material to make.
The invention has the beneficial effects as follows: be subjected to abrasive defective easily when eliminating band steel whipping, guarantee the quality of production.
Description of drawings
Fig. 1 is a traditional handicraft band steel whipping schematic diagram;
Fig. 2 is the band steel whipping schematic diagram of embodiment.
Among the figure, 1 is uncoiler, and 2 are the band steel, and 3 for drawing the material guide plate, and 4 is top pinch roll, and 5 is bottom pinch roll, and 6 is free roller, and 7 for to draw the rotating shaft of expecting guide plate, and 8 for to draw the head of expecting guide plate, and 9 is lifting hydraulic cylinder.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
This hairpin is in traditional steel rolling process, and the band steel is easy to generate the deficiency of scratch defect when whipping, and a kind of method of eliminating band steel tail-swing scratching defect is provided.Compare with traditional handicraft, its main improvement is: when the external diameter of coil of strip reduces to certain value, the band steel can with draw the afterbody of expecting guide plate and contact, this moment, we utilized unit control system (PLC system) to send control signal, the elongation of control lifting hydraulic cylinder, and drawing the material guide plate so will be around rotating shaft, head upwards rotates certain distance, corresponding decline one segment distance of its afterbody guarantees to disengage with the band steel, avoids scratch.The specific implementation step is as follows: a. unit control system is learnt band steel whipping signal; C. control is used to support and draws the lifting hydraulic cylinder elongation of expect guide plate, and when drawing the material guide plate head upwards rotates the rising setpoint distance around the shaft, lifting hydraulic cylinder stops action, finally makes that drawing material guide plate afterbody breaks away from the band steel and contact.
Embodiment:
As shown in Figure 2, operation along with unit, be with steel 2 between top pinch roll 4, the bottom pinch roll 5 and draw the angle of expecting guide plate 3 and also diminish gradually, when the coil of strip external diameter on the uncoiler reduces to φ 588mm, under the situation of not taking any measure, band steel 2 can contact with drawing the afterbody of expecting guide plate 3, along with the phenolic materials that draws material guide plate 3 surfaces constantly weares and teares, band steel 2 lower surfaces just directly contact with material guide plate 3 afterbodys that draw that iron is made, and produce scratch defect.Therefore, we draw material guide plate 3 by foundation, the chain condition of lifting hydraulic cylinder 9 and machine set PLC system, when the coil of strip external diameter reduces to φ 588mm, the machine set PLC system sends control signal, unit operation speed is dropped to below the 40m/min, the serious scratch of avoiding high-speed cruising to bring, control lifting hydraulic cylinder 9 elongations simultaneously, drawing material guide plate 3 so will rise around rotating shaft 7 heads 8, and the corresponding decline of afterbody is when drawing the head rising 5mm that expects guide plate 3, the machine set PLC system sends control signal once more, lifting hydraulic cylinder 9 stops action, will disengage with band steel 2 and draw the afterbody of expecting guide plate 3 this moment, realizes safe whipping.Enabling signal for lifting hydraulic cylinder 9 can provide by manually pressing the whipping call button, stop signal for lifting hydraulic cylinder 9 can be by design limit frame in rotating shaft 7, the design displacement detector realizes that limit frame is for the fixed displacement detector on limit frame.We can be by drawing the long and angle of the plate of expecting guide plate 3, and by converting when its head 8 rising 5mm, the distance of the corresponding decline of afterbody is so as long as set this distance is sent lifting hydraulic cylinder 9 stop signals for the machine set PLC system condition.
In addition, we also set up a free roller 6 that adopts elastomeric material to make drawing material guide plate afterbody place, free roller 6 is fixed on and draws in material guide plate 3 top panels, make band steel 2 its lower surface when whipping contact, so just can avoid existing that the band steel 2 of the big bad defective of plate shape is direct expects that guide plate 3 afterbodys contact and produce scratch with drawing with free roller 6.
The present invention's scope required for protection comprises but is not limited only to embodiment; because the uncoiler specification of each producer is not quite similar; the enabling signal of PLC system might not be sent when the coil of strip external diameter reduces to φ 588mm; its stop signal might not be sent when drawing the head rising 5mm that expects guide plate; those skilled in the art changes the technique effect that reaches same according to foregoing description to the solution of the present invention easily slightly, and it all belongs to protection scope of the present invention.
Claims (6)
1. eliminate the method for being with the steel tail-swing scratching defect for one kind, it is characterized in that: may further comprise the steps:
A. unit control system detects band steel whipping signal;
C. control to be used to support and draw the lifting hydraulic cylinder elongation of expecting guide plate, expect guide plate upwards rotation of head around the shaft when drawing, when rising to setpoint distance, the feasible material guide plate afterbody disengaging band steel that draws contacts, and lifting hydraulic cylinder stops to move.
2. a kind of method of eliminating band steel tail-swing scratching defect as claimed in claim 1 is characterized in that: also comprise step between step a and step c:
B. the speed of service with steel is controlled at below the 40m/min.
3. a kind of method of eliminating band steel tail-swing scratching defect as claimed in claim 1 or 2 is characterized in that: also comprise step after step c:
D. contact by setting up at the band steel lower surface of the free roller that draws material guide plate afterbody during with whipping.
4. a kind of method of eliminating band steel tail-swing scratching defect as claimed in claim 3 is characterized in that: in the steps d, described free roller adopts elastomeric material to make.
5. a kind of method of eliminating band steel tail-swing scratching defect as claimed in claim 1 or 2 is characterized in that: among the step a, when the coil of strip external diameter reduces to ф 588mm, send band steel whipping signal.
6. a kind of method of eliminating band steel tail-swing scratching defect as claimed in claim 1 or 2, it is characterized in that: among the step c, described setpoint distance is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010198958 CN101829690B (en) | 2010-06-12 | 2010-06-12 | Method for eliminating band steel tail-swing scratching defect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010198958 CN101829690B (en) | 2010-06-12 | 2010-06-12 | Method for eliminating band steel tail-swing scratching defect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101829690A true CN101829690A (en) | 2010-09-15 |
| CN101829690B CN101829690B (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010198958 Expired - Fee Related CN101829690B (en) | 2010-06-12 | 2010-06-12 | Method for eliminating band steel tail-swing scratching defect |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203392A (en) * | 2012-01-13 | 2013-07-17 | 宝山钢铁股份有限公司 | Thick plate decoiling device and method |
| WO2018141251A1 (en) * | 2017-02-04 | 2018-08-09 | 大连富地重工机械制造有限公司 | Coiled tape material guiding machine and guiding method for coiled tape material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3263301B2 (en) * | 1995-01-27 | 2002-03-04 | 太平工業株式会社 | Running machining equipment |
| CN2493321Y (en) * | 2001-02-23 | 2002-05-29 | 涟源钢铁集团有限公司 | Sheet guiding apparatus |
| KR20030050507A (en) * | 2001-12-18 | 2003-06-25 | 주식회사 포스코 | Automatically controled apparatus for threading strip coil by the size of strip |
| CN201346564Y (en) * | 2008-12-31 | 2009-11-18 | 中冶南方工程技术有限公司 | Outlet threading guide plate with anti-crease function |
| CN201423394Y (en) * | 2009-04-16 | 2010-03-17 | 宝山钢铁股份有限公司 | Cold rolling continuous machine set outlet guide plate threading device |
| CN201500695U (en) * | 2009-09-21 | 2010-06-09 | 宝山钢铁股份有限公司 | Reeling transition guide plate for preventing scratching of strip steel and switching device |
-
2010
- 2010-06-12 CN CN 201010198958 patent/CN101829690B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3263301B2 (en) * | 1995-01-27 | 2002-03-04 | 太平工業株式会社 | Running machining equipment |
| CN2493321Y (en) * | 2001-02-23 | 2002-05-29 | 涟源钢铁集团有限公司 | Sheet guiding apparatus |
| KR20030050507A (en) * | 2001-12-18 | 2003-06-25 | 주식회사 포스코 | Automatically controled apparatus for threading strip coil by the size of strip |
| CN201346564Y (en) * | 2008-12-31 | 2009-11-18 | 中冶南方工程技术有限公司 | Outlet threading guide plate with anti-crease function |
| CN201423394Y (en) * | 2009-04-16 | 2010-03-17 | 宝山钢铁股份有限公司 | Cold rolling continuous machine set outlet guide plate threading device |
| CN201500695U (en) * | 2009-09-21 | 2010-06-09 | 宝山钢铁股份有限公司 | Reeling transition guide plate for preventing scratching of strip steel and switching device |
Non-Patent Citations (1)
| Title |
|---|
| 《宝钢技术》 20091231 蔡恒 重卷/剖分机组带钢擦划伤综合整治 , 第5期 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203392A (en) * | 2012-01-13 | 2013-07-17 | 宝山钢铁股份有限公司 | Thick plate decoiling device and method |
| CN103203392B (en) * | 2012-01-13 | 2015-04-22 | 宝山钢铁股份有限公司 | Thick plate decoiling device and method |
| WO2018141251A1 (en) * | 2017-02-04 | 2018-08-09 | 大连富地重工机械制造有限公司 | Coiled tape material guiding machine and guiding method for coiled tape material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101829690B (en) | 2013-07-24 |
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Granted publication date: 20130724 Termination date: 20170612 |