CN102896183B - Method for judging successful coil contact action of hot rolled steel coil stripper car - Google Patents
Method for judging successful coil contact action of hot rolled steel coil stripper car Download PDFInfo
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- CN102896183B CN102896183B CN201210388688.6A CN201210388688A CN102896183B CN 102896183 B CN102896183 B CN 102896183B CN 201210388688 A CN201210388688 A CN 201210388688A CN 102896183 B CN102896183 B CN 102896183B
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- coil
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- stripping car
- coil stripping
- car
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Abstract
The invention discloses a method for judging a successful coil contact action of a hot rolled steel coil stripper car. The method comprises the following steps of: firstly, obtaining an ascending target position H of the coil stripper car; then, setting a no-load pressure P of the coil stripper car; and at last, comparing a difference value of a practical pressure P and the no-load pressure P with a coil contact pressure setting constant A, and comparing an absolute value of a difference value of a practical position H and the target position H with a position window parameter B, so as to judge if the coil stripper car is successfully in contact with a steel coil. According to the method for judging the successful coil contact action of the hot rolled steel coil stripper car, the target position and the no-load pressure of the coil stripper car are obtained by calculation at first, and the practical pressure and the practical position of the coil stripper car are measured in real time, then pressures and the positions are judged and compared, so that reliability of the successful coil contact action of the coil stripper car is guaranteed, guarantee is provided for subsequent coil stripping work, and serious accidents caused by falling of the steel coil are completely avoided.
Description
Technical field
The present invention relates to metallurgical industry field, particularly relate to a kind of coils of hot-rolled steel coil stripping car and touch the determination methods that is rolled onto position.
Background technology
Coil of strip coil stripping car is the visual plant of hot rolling line, is discharged to supply line for the coil of strip that coiling machine is rolled into.At present coil stripping car touches and is rolled onto the simple employing pressure judgement in position, because the fluctuation of on-the-spot pressure tends to cause the failure of judgement.Or produce in advance to touch and be rolled onto a signal, coil stripping car is actual to be failed to touch coil of strip and causes coil of strip to drop, and smashes equipment; Or lagging behind to produce to touch is rolled onto a signal, and coil stripping car, coil of strip jack-up together with reel, causes reel distortion, can not use.Once there is above-mentioned situation, will have a strong impact on production, therefore unload volume and touch volume success or not and become to batch and unload the major hidden danger licking in journey, must change and touch volume determination methods.
Summary of the invention
The object of the present invention is to provide a kind of can accurately judge touch be rolled onto position coils of hot-rolled steel coil stripping car touch be rolled onto position determination methods.
The tactile determination methods that is rolled onto position of a kind of coils of hot-rolled steel coil stripping car provided by the invention comprises: first obtain the target location H that coil stripping car rises
target location;
Then set coil stripping car unloading pressure P
unloading pressure, described coil stripping car unloading pressure P
unloading pressureto rise at coil stripping car the force value that target location one half is surveyed;
Finally pass through P
actual pressure-P
unloading pressuredifference contrast with touching volume pressure setting constant A, will | H
real position, border-H
target location| absolute value and location window B parameter contrast, whether touch and be rolled onto position success, wherein P thereby judge coil stripping car
actual pressurefor the pressure that coil stripping car is measured in real time, H
physical locationfor the physical location of coil stripping car.
Further, described in, obtain the target location H that coil stripping car rises
target locationcomprise:
Obtain the diameter D of coil of strip to be unloaded
coil diameterand the diameter D of coil stripper car supporting roller
carrying roller, then pass through H
md-(D
coil diameter/ 2)-(D
carrying roller/ 2) calculate and obtain the target location H that coil stripping car rises
target location, wherein H
mdduring for coil stripping car lowest order and reel centre distance.
Further, described at setting coil stripping car unloading pressure P
unloading pressurealso comprise before:
Coil stripping car is carried out vertical motion.
Further, described tactile volume pressure setting constant A and location window B parameter are according to treating that measuring tape steel afterbody thickness and intensity are basis of design, originate taking thick intensity band steel with a high standard as main setting data, not only ensure that equipment is not damaged but also ensure normally to unload scrolling work.
When pressure and the position of coil stripping car meet P
actual pressure-P
unloading pressure>=A, and | H
physical location-H
target location| when≤B, coil stripping car touches and is rolled onto position success.
Further, when pressure and the position of coil stripping car do not meet P
actual pressure-P
unloading pressure>=A, and | H
physical location-H
target location| when≤B, reporting to the police to touch is rolled onto position failure.
Further, described tactile volume pressure setting constant A is 30kN, and described location window B parameter is set as 100mm.
A kind of coils of hot-rolled steel coil stripping car provided by the invention touches the determination methods that is rolled onto position, by calculating the target location and the unloading pressure that first draw coil stripping car, then measure in real time actual pressure and the position of coil stripping car, and carry out the judgement comparison of pressure and position, ensure that coil stripping car touches the reliability that is rolled onto position, for the follow-up volume work of unloading provides guarantee, the major accident of thoroughly having avoided coil of strip to drop.
Brief description of the drawings
Fig. 1 is the device schematic diagram of coil stripping car and reel;
Fig. 2 touches according to coil stripping car of the present invention the outline flowchart that is rolled onto a determination methods.
Detailed description of the invention
Shown in Fig. 1 and Fig. 2, the tactile determination methods that is rolled onto position of a kind of coils of hot-rolled steel coil stripping car provided by the invention comprises the following steps:
Step S1: obtain the target location H that coil stripping car rises
target location7 (in Fig. 1, label 7 represents H
target position).
Step S2: coil stripping car is carried out vertical motion.After coil of strip rolling, send and unload after volume order until one-level computer, put H according to the target of calculating
target location7, risen by one-level computer control coil stripping car hydraulic cylinder, coil stripping car starts and rises.
Step S3: then set coil stripping car unloading pressure P
unloading pressure.When coil stripping car rises, measure pressure by the pressure sensor being contained on hydraulic cylinder, measure lifting position by magnetic scale.In the time that coil stripping car just starts to rise, hydraulic cylinder action can cause hydraulic line pressure fluctuation ratio larger, and pressure detecting is now unstable, therefore can not be using pressure now as unloading pressure.Guarantee coil stripping car even running, and will guarantee that dolly does not have in other plant equipment interference situations, now detected pressures is just as unloading pressure.Therefore ought detect that coil stripping car rises to H
target location7 one halfs, pressure now is just set as coil stripping car unloading pressure, that is to say that unload volume all will set unloading pressure at every turn, for the tactile position that is rolled onto of next step judgement provides reliable and stable data.
Step S4: by by P
actual pressure-P
unloading pressuredifference contrast with touching volume pressure setting constant A, will | H
physical location-H
target location| absolute value and location window B parameter contrast, whether touch and be rolled onto position success, wherein P thereby judge coil stripping car
actual pressurefor the pressure that coil stripping car is measured in real time, H
physical locationfor the physical location of coil stripping car.
Wherein, step S1 obtains the target location H that coil stripping car rises
target location7 comprise following two steps:
Step S11: the diameter D that obtains coil of strip 1 to be unloaded
coil diameter4 (in Fig. 1, label 4 represents diameter D
coil diameter) and the diameter D of coil stripper car supporting roller (in Fig. 1, label 3 represents coil stripper car supporting roller)
carrying roller(in Fig. 1, label 5 represents diameter D
carrying roller), wherein D
coil diameterthe 4th, according to current calculating with steel of batching, send to one-level computer by network communication by second computer.According to above-mentioned formula, one-level computer calculates dolly climbing target position according to this coil diameter.
Step S12: pass through H
target location=H
md-(D
coil diameter/ 2)-(D
carrying roller/ 2) calculate coil stripping car and touch the target location H rolling up
target location7.Wherein, H
md6 (in Fig. 1, label 6 represents H
md) while being coil stripping car lowest order and the centre distance of reel 2.
Step S4 passes through P
actual pressure-P
unloading pressuredifference contrast with touching volume pressure setting constant A, will | H
physical location-H
target location| absolute value and location window B parameter contrast, whether touch and be rolled onto position success, wherein P thereby judge coil stripping car
actual pressurefor the pressure that coil stripping car is measured in real time, H
physical locationfor the physical location of coil stripping car.Specifically:
Step S41: the physical location H that judges coil stripping car pressure and measurement coil stripping car
physical location.First judge coil stripping car pressure, the pressure that coil stripping car has year pressure in fact to detect in real time by pressure sensor exactly.After in dolly uphill process, unloading pressure has been set, one-level computer carries out pressure judgement, i.e. formula: P all the time
actual pressure-P
unloading pressure>=touch volume pressure setting constant A whether to meet.In the time that coil stripping car does not touch coil of strip, P
actual pressure-P
unloading pressure=0; Only touch P after coil of strip
actual pressure-P
unloading pressure> 0, along with dolly continues to promote coil of strip, P
actual pressure-P
unloading pressuredifference is increasing, and whether its difference arrives is touched volume pressure setting constant as basis for estimation.Measure the physical location H of coil stripping car by magnetic scale simultaneously
physical location, pass through | H
physical location-H
target location|≤location window B parameter judges whether coil stripping car position has arrived target location.Wherein, touching volume pressure setting constant A and location window B parameter is according to treating that measuring tape steel afterbody thickness and intensity are basis of design, originates taking thick intensity band steel with a high standard as main setting data, not only ensures that equipment is not damaged but also ensure normally to unload scrolling work.The tactile volume pressure setting constant A that the embodiment of the present invention provides is set as 30kN by debugging, and location window B parameter is made as 100mm.
Step S42: carry out in such a way the tactile position that is rolled onto of judgement, to press Force location to judge simultaneously, to judge pressure P
actual pressure-P
unloading pressurewhether meet the demands is main, to judge position | and H
physical location-H
target location| whether be auxiliary, when pressure meets P if meeting the demands
actual pressure-P
unloading pressure>=30kN, arrival target location, position window ranges simultaneously, position meets: | H
physical location-H
target location| when≤100mm, coil stripping car touches and is rolled onto position, and not satisfying condition reports to the police touches and be rolled onto position failure, and for example following two kinds of situations are all thought to touch and are rolled onto position failure:
A. rise and exceed target location, but pressure does not reach requirement, i.e. pressure P
actual pressure-P
unloading pressure< 30kN and position H
physical location-H
target location> 100mm;
B. pressure reaches requirement, does not arrive in the window ranges of target location i.e. P but rise
actual pressure-P
unloading pressure>=30kN and H
physical location-H
target location<-100mm;
Touch and be rolled onto after the failure of position, one-level computer will report to the police and stop to unload normally scrolling and do.Effective like this having avoided touched the generation that is rolled onto an error signal, protected field apparatus, ensured normal production.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (7)
1. coils of hot-rolled steel coil stripping car touches a determination methods that is rolled onto position, it is characterized in that, comprising:
First obtain the target location H that coil stripping car rises
target location;
Then set coil stripping car unloading pressure P
unloading pressure, described coil stripping car unloading pressure P
unloading pressureto rise at coil stripping car the force value that target location one half is surveyed;
Finally pass through P
actual pressure-P
unloading pressuredifference contrast with touching volume pressure setting constant A, will | H
real position, border-H
target location| absolute value and location window B parameter contrast, whether touch and be rolled onto position success, wherein P thereby judge coil stripping car
actual pressurefor the pressure that coil stripping car is measured in real time, H
physical locationfor the physical location of coil stripping car.
A kind of coils of hot-rolled steel coil stripping car as claimed in claim 1 touch be rolled onto position determination methods, it is characterized in that, described in obtain coil stripping car rise target location H
target locationcomprise:
Obtain the diameter D of coil of strip to be unloaded
coil diameterand the diameter D of coil stripper car supporting roller
carrying roller, then pass through H
md-(D
coil diameter/ 2)-(D
carrying roller/ 2) calculate and obtain the target location H that coil stripping car rises
target location, wherein H
mdduring for coil stripping car lowest order and reel centre distance.
3. a kind of coils of hot-rolled steel coil stripping car as claimed in claim 1 touches the determination methods that is rolled onto position, it is characterized in that, described at setting coil stripping car unloading pressure P
unloading pressurealso comprise before:
Coil stripping car is carried out vertical motion.
4. a kind of coils of hot-rolled steel coil stripping car as claimed in claim 1 touches the determination methods that is rolled onto position, it is characterized in that:
Described tactile volume pressure setting constant A and location window B parameter are according to treating that measuring tape steel afterbody thickness and intensity are basis of design, originate taking thick intensity band steel with a high standard as main setting data, not only ensure that equipment is not damaged but also ensure normally to unload scrolling work.
5. a kind of coils of hot-rolled steel coil stripping car as claimed in claim 4 touches the determination methods that is rolled onto position, it is characterized in that:
When pressure and the position of coil stripping car meet P
actual pressure-P
unloading pressure>=A, and | H
physical location-H
target location| when≤B, coil stripping car touches and is rolled onto position success.
6. a kind of coils of hot-rolled steel coil stripping car as claimed in claim 5 touches the determination methods that is rolled onto position, it is characterized in that:
When pressure and the position of coil stripping car do not meet P
actual pressure-P
unloading pressure>=A, and | H
physical location-H
target location| when≤B, reporting to the police to touch is rolled onto position failure.
7. a kind of coils of hot-rolled steel coil stripping car as claimed in claim 6 touches the determination methods that is rolled onto position, it is characterized in that:
Described tactile volume pressure setting constant A is 30kN, and described location window B parameter is set as 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210388688.6A CN102896183B (en) | 2012-10-12 | 2012-10-12 | Method for judging successful coil contact action of hot rolled steel coil stripper car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210388688.6A CN102896183B (en) | 2012-10-12 | 2012-10-12 | Method for judging successful coil contact action of hot rolled steel coil stripper car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102896183A CN102896183A (en) | 2013-01-30 |
| CN102896183B true CN102896183B (en) | 2014-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210388688.6A Active CN102896183B (en) | 2012-10-12 | 2012-10-12 | Method for judging successful coil contact action of hot rolled steel coil stripper car |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105290151B (en) * | 2014-06-30 | 2018-04-20 | 宝钢不锈钢有限公司 | It is a kind of to unload volume control method with jaw coiling machine |
| CN110586688B (en) * | 2019-09-09 | 2024-04-12 | 中冶南方工程技术有限公司 | Steel coil car and coil touch detection method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2412747A1 (en) * | 1973-05-18 | 1974-12-05 | Voest Ag | STRIPPING AND LEVELING SYSTEM FOR BLANK HOT-ROLLED PLATES |
| CN201257460Y (en) * | 2008-09-27 | 2009-06-17 | 王燕飞 | Coiled material alignment diameter-measuring device |
| CN101537445A (en) * | 2008-09-27 | 2009-09-23 | 上海东大自动化工程有限公司 | Device and method for coiled material centering and diameter measuring |
| CN101941027A (en) * | 2010-07-22 | 2011-01-12 | 南京钢铁股份有限公司 | High-speed coil unloading and aligning method of qualified finished wire coils |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06297036A (en) * | 1993-04-15 | 1994-10-25 | Nippon Steel Corp | Method for preventing fall at the time of inserting coil into pay-off reel |
| JP5509665B2 (en) * | 2009-04-21 | 2014-06-04 | Ｊｆｅスチール株式会社 | Winding device and winding method for high strength thick hot rolled steel sheet |
-
2012
- 2012-10-12 CN CN201210388688.6A patent/CN102896183B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2412747A1 (en) * | 1973-05-18 | 1974-12-05 | Voest Ag | STRIPPING AND LEVELING SYSTEM FOR BLANK HOT-ROLLED PLATES |
| CN201257460Y (en) * | 2008-09-27 | 2009-06-17 | 王燕飞 | Coiled material alignment diameter-measuring device |
| CN101537445A (en) * | 2008-09-27 | 2009-09-23 | 上海东大自动化工程有限公司 | Device and method for coiled material centering and diameter measuring |
| CN101941027A (en) * | 2010-07-22 | 2011-01-12 | 南京钢铁股份有限公司 | High-speed coil unloading and aligning method of qualified finished wire coils |
Non-Patent Citations (2)
| Title |
|---|
| 卸卷小车升降控制回路故障分析;陈菊平等;《流体传动与控制》;20060331(第2期);全文 * |
| 陈菊平等.卸卷小车升降控制回路故障分析.《流体传动与控制》.2006,(第2期), * |
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| CN102896183A (en) | 2013-01-30 |
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