CN104267753A - Pressure control method for coiling machine side guide plate - Google Patents
Pressure control method for coiling machine side guide plate Download PDFInfo
- Publication number
- CN104267753A CN104267753A CN201410442427.7A CN201410442427A CN104267753A CN 104267753 A CN104267753 A CN 104267753A CN 201410442427 A CN201410442427 A CN 201410442427A CN 104267753 A CN104267753 A CN 104267753A
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- setting
- actual measurement
- stress control
- flipper guide
- guide plate
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Abstract
The invention discloses a pressure control method for a coiling machine side guide plate and belongs to the technical field of coiling machines. According to the selection of the pressure control method for the coiling machine side guide plate, pressure control is adopted in one side, and position control is adopted in the other side; after strip steel enters the coiling side guide plate, the side guide plate pressure control side executes pressure control, and real-time judgment is carried out on actual measurement of actual measurement pressure P and setting of a set pressure value P of the side guide plate pressure control side; judgment is carried out according to the position motion situation of the side guide plate pressure control side; finally, judgment is carried out according to the size of the actual measurement of the actual measurement pressure P and the size of setting of the set pressure value P of the side guide plate pressure control side, and the size of the actual measurement of the opening degree GAP and the size of setting of the set opening degree GAP of the two sides of the side guide plate, and the situation of the tail of the strip steel entering the side guide plate. According to the pressure control method for the coiling machine side guide plate, the problem of the steel roll tower shape caused by the fact that the side guide plate pushes the strip steel in a deviating mode can be prevented, the problem of the control disorder caused by abnormal pressure control under the circumstance of the pressure sensor failure is avoided, and layer staggering and edge cracking of steel rolls are effectively avoided.
Description
Technical field
The present invention relates to coiling machine technical field, particularly a kind of side guide plate of recoiling machine compress control method.
Background technology
Along with increasingly sharpening of coils of hot-rolled steel market competition, scroll quality has become an important Con trolling index in production run.And the control quality of flipper guide directly affects coil of strip scroll, control badly will cause the mass defect such as scroll staggered floor, open-minded limit.
Current side guide plate of recoiling machine control method has three kinds: 1 usually, under flipper guide is always position control mode, does not consider the extruding force suffered by flipper guide, remains invariant position, and band steel is easy to occur open-minded limit phenomenon; 2, under flipper guide is always pressure controling mode, do not consider the physical location of flipper guide aperture, when being with steel to occur the situations such as camber, owing to keeping Stress control, coil of strip is easy to occur staggered floor phenomenon; 3, the position control of flipper guide side, side Stress control, but Stress control side still rests on Stress control, do not consider the situation in pressure anomaly situation, as sensor fault, although opposite side position keeps motionless, but can close flipper guide or opening side guide plate under Stress control side, object keeps the consistance of Stress control wall pressure feedback and setting always, this just easily causes flipper guide band steel is pushed away inclined even folder dead band steel and piles the accident of steel.
Summary of the invention
Technical matters to be solved by this invention is to provide one and prevents flipper guide from partially causing steel roll tower shaped problem being with steel to push away, avoid pressure sensor failure situation downforce and control the chaotic problem of the abnormal control caused, and effectively avoid the side guide plate of recoiling machine compress control method on coil of strip staggered floor, open-minded limit.
For solving the problems of the technologies described above, the invention provides a kind of side guide plate of recoiling machine compress control method, comprise and select flipper guide side to be Stress control, opposite side is position control; At band steel after entering plate rolling side guide, flipper guide Stress control side performs Stress control, and offside guide plate Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingcarry out real-time judge, according to judged result, flipper guide Stress control side position carries out action; According to the position action situation of flipper guide Stress control side, judge flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize; Last according to flipper guide Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingand flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize and tail part of band steel approaching side guide plate situation, decide flipper guide Stress control side and be switched to position control mode from Stress control.
Further, at band steel after entering plate rolling side guide, flipper guide Stress control side performs Stress control, records flipper guide Stress control side observed pressure P by pressure transducer
actual measurement, the pressure value P set in central processing unit
setting, pressure transducer is recorded flipper guide Stress control side observed pressure P
actual measurementbe transferred to central processing unit, offside guide plate Stress control side observed pressure P in central processing unit
actual measurementwith the pressure value P of setting
settingcarry out real-time judge, carry out action according to judged result flipper guide Stress control side position.
Further, in central processing unit, set flipper guide both sides aperture GAP
setting, follow the position action situation according to flipper guide Stress control side, drive flipper guide action by hydraulic cylinder, the throw of poston of hydraulic cylinder is the both sides aperture GAP of the flipper guide of actual measurement
actual measurement, hydraulic cylinder is by GAP
actual measurementpass to central processing unit, in central processing unit, judge flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize.
Further, the pressure controlled setting value P of flipper guide
settingwith steel grade thickness for basis of design, flipper guide aperture setting GAP
settingfor basis of design with steel grade width.
Further, flipper guide pressure P
actual measurement> P
setting, opening action is done in flipper guide Stress control side; Judge flipper guide aperture GAP simultaneously
actual measurement-GAP
setting>=Bmm, if GAP
actual measurement-GAP
setting>=Bmm, then Stress control is terminated in flipper guide Stress control side, and is switched to position control; If GAP
actual measurement-GAP
setting< Bmm, then flipper guide Stress control side is continued with P
settingfor foundation does Stress control, and carry out P in real time
actual measurementwith P
settingthe judgement of relation.
Further, described parameter B is set as 50mm.
Further, flipper guide pressure P
actual measurement=P
setting, flipper guide Stress control side keeps existing position to carry out Stress control, and carries out P in real time
actual measurementwith P
settingthe judgement of relation.
Further, flipper guide pressure P
actual measurement< P
setting, closing motion is done in flipper guide Stress control side; Judge flipper guide aperture GAP simultaneously
actual measurement-GAP
setting≤ Amm, if GAP
actual measurement-GAP
setting≤ Amm, then Stress control is terminated in flipper guide Stress control side, and is switched to position control; If GAP
actual measurement-GAP
setting> Amm, then flipper guide Stress control side is continued with P
settingfor foundation does Stress control, and carry out P in real time
actual measurementwith P
settingthe judgement of relation.
Further, described parameter A is set as 2mm.
Further, after tail part of band steel approaching side guide plate, Stress control is terminated in flipper guide Stress control side, and is switched to position control.
First side guide plate of recoiling machine compress control method provided by the invention selects flipper guide side to be Stress control, opposite side is position control, then, at band steel after entering plate rolling side guide, flipper guide Stress control side performs Stress control, and offside guide plate Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingcarry out real-time judge, according to judged result, flipper guide Stress control side position carries out action, then, according to the position action situation of flipper guide Stress control side, judges flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize, last according to flipper guide Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingand flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize and tail part of band steel approaching side guide plate situation, deciding flipper guide Stress control side is switched to position control mode from Stress control, like this, prevent flipper guide that band steel is pushed away and partially cause steel roll tower shaped problem, avoid pressure sensor failure situation downforce and control the chaotic problem of the abnormal control caused, effectively avoid the quality problems on coil of strip staggered floor, open-minded limit simultaneously.
Accompanying drawing explanation
The workflow diagram of the side guide plate of recoiling machine compress control method that Fig. 1 provides for the embodiment of the present invention.
Embodiment
See Fig. 1, a kind of side guide plate of recoiling machine compress control method that the embodiment of the present invention provides, comprise and select flipper guide side to be Stress control, opposite side is position control; At band steel after entering plate rolling side guide, flipper guide Stress control side performs Stress control, and offside guide plate Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingcarry out real-time judge, according to judged result, flipper guide Stress control side position carries out action, and be namely with steel after entering plate rolling side guide, flipper guide Stress control side performs Stress control, records flipper guide Stress control side observed pressure P by pressure transducer
actual measurement, the pressure value P set in central processing unit
setting, the pressure controlled setting value P of flipper guide
settingbe with steel grade thickness for basis of design, pressure transducer recorded flipper guide Stress control side observed pressure P
actual measurementbe transferred to central processing unit, offside guide plate Stress control side observed pressure P in central processing unit
actual measurementwith the pressure value P of setting
settingcarry out real-time judge, carry out action according to judged result flipper guide Stress control side position.According to the position action situation of flipper guide Stress control side, judge flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize, in central processing unit, namely set flipper guide both sides aperture GAP
setting, flipper guide aperture setting GAP
settingthat follow the position action situation according to flipper guide Stress control side, drive flipper guide action by hydraulic cylinder, the throw of poston of hydraulic cylinder is the both sides aperture GAP of the flipper guide of actual measurement with steel grade width for basis of design
actual measurement, hydraulic cylinder is by GAP
actual measurementpass to central processing unit, in central processing unit, judge flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize.Last according to flipper guide Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingand flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize and tail part of band steel approaching side guide plate situation, decide flipper guide Stress control side and be switched to position control mode from Stress control, flipper guide pressure P
actual measurement> P
setting, opening action is done in flipper guide Stress control side; Judge flipper guide aperture GAP simultaneously
actual measurement-GAP
setting>=Bmm, parameter B is set as 50mm, if GAP
actual measurement-GAP
setting>=Bmm, then Stress control is terminated in flipper guide Stress control side, and is switched to position control; If GAP
actual measurement-GAP
setting< Bmm, then flipper guide Stress control side is continued with P
settingfor foundation does Stress control, and carry out P in real time
actual measurementwith P
settingthe judgement of relation; Flipper guide pressure P
actual measurement=P
setting, flipper guide Stress control side keeps existing position to carry out Stress control, and carries out P in real time
actual measurementwith P
settingthe judgement of relation; Flipper guide pressure P
actual measurement< P
setting, closing motion is done in flipper guide Stress control side; Judge flipper guide aperture GAP simultaneously
actual measurement-GAP
setting≤ Amm, parameter A is set as 2mm, if GAP
actual measurement-GAP
setting≤ Amm, then Stress control is terminated in flipper guide Stress control side, and is switched to position control; If GAP
actual measurement-GAP
setting> Amm, then flipper guide Stress control side is continued with P
settingfor foundation does Stress control, and carry out P in real time
actual measurementwith P
settingthe judgement of relation; After tail part of band steel approaching side guide plate, Stress control is terminated in flipper guide Stress control side, and is switched to position control.
When using the present invention's one side guide plate of recoiling machine compress control method, the invention provides a specific embodiment:
First before band steel enters plate rolling side guide, select flipper guide side to be Stress control, opposite side is position control.
After band steel enters plate rolling side guide, flipper guide Stress control side performs Stress control, according to the pressure set points P of central processing unit
settingcarry out closed-loop control, this pressure setting P
settingbe change according to belt steel thickness and change.
Band steel is when flipper guide inner-threading, and due to strip shape problem, as camber etc. can cause the extruding of offside guide plate, flipper guide pressure has significant change; By pressure transducer real-time detection side guide plate Stress control wall pressure P
actual measurement, and with setting pressure value P
settingcarry out real-time judge, thus judge that flipper guide Stress control side position is the need of action.Follow the position action situation according to flipper guide Stress control side, drive flipper guide action by hydraulic cylinder, the throw of poston of hydraulic cylinder is the both sides aperture GAP of the flipper guide of actual measurement
actual measurement, hydraulic cylinder is by GAP
actual measurementpass to central processing unit.
If flipper guide pressure P
actual measurement> P
setting, opening action is done in flipper guide Stress control side, extrudes the pressure caused, now flipper guide aperture GAP to reduce band steel offside guide plate
actual measurementcan increase; At this moment flipper guide aperture GAP is judged again
actual measurement-GAP
settingwhether>=Bmm meets, can setup parameter B value according to working experience, and B is defined as 50mm by debugging, flipper guide aperture setting GAP
settingfor basis of design with steel grade width.If meet, then Stress control is terminated in flipper guide Stress control side, and is switched to position control; If do not meet, then judge tail part of band steel whether approaching side guide plate, if the non-approaching side guide plate of tail part of band steel, flipper guide Stress control side is continued with P
settingfor foundation does Stress control, and carry out P in real time
actual measurementwith P
settingthe judgement of relation; If tail part of band steel is approaching side guide plate, then Stress control is terminated in flipper guide Stress control side, and is switched to position control.
If flipper guide pressure P
actual measurement=P
setting, flipper guide Stress control side keeps existing position to carry out Stress control, and judge tail part of band steel whether approaching side guide plate again, if the non-approaching side guide plate of tail part of band steel, flipper guide Stress control side is continued with P simultaneously
settingfor foundation does Stress control, and carry out P in real time
actual measurementwith P
settingthe judgement of relation; If tail part of band steel is approaching side guide plate, then Stress control is terminated in flipper guide Stress control side, and is switched to position control.
If flipper guide pressure P
actual measurement< P
setting, closing motion compressive belt steel is done in flipper guide Stress control side, increases flipper guide pressure, now flipper guide aperture GAP
actual measurementcan reduce; At this moment flipper guide aperture GAP is judged again
actual measurement-GAP
settingwhether≤Amm meets, can setup parameter A value according to working experience, and A is defined as 2mm by debugging.If meet, then Stress control is terminated in flipper guide Stress control side, and is switched to position control; If do not meet, then judge tail part of band steel whether approaching side guide plate, if the non-approaching side guide plate of tail part of band steel, flipper guide Stress control side is continued with P
settingfor foundation does Stress control, and carry out P in real time
actual measurementwith P
settingthe judgement of relation; If tail part of band steel is approaching side guide plate, then Stress control is terminated in flipper guide Stress control side, and is switched to position control.
First side guide plate of recoiling machine compress control method provided by the invention selects flipper guide side to be Stress control, opposite side is position control, then, at band steel after entering plate rolling side guide, flipper guide Stress control side performs Stress control, and offside guide plate Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingcarry out real-time judge, according to judged result, flipper guide Stress control side position carries out action, then, according to the position action situation of flipper guide Stress control side, judges flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize, last according to flipper guide Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingand flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize and tail part of band steel approaching side guide plate situation, deciding flipper guide Stress control side is switched to position control mode from Stress control, like this, prevent flipper guide that band steel is pushed away and partially cause steel roll tower shaped problem, avoid pressure sensor failure situation downforce and control the chaotic problem of the abnormal control caused, effectively avoid the quality problems on coil of strip staggered floor, open-minded limit simultaneously.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to example to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a side guide plate of recoiling machine compress control method, is characterized in that, comprising: select flipper guide side to be Stress control, opposite side is position control; At band steel after entering plate rolling side guide, flipper guide Stress control side performs Stress control, and offside guide plate Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingcarry out real-time judge, according to judged result, flipper guide Stress control side position carries out action; According to the position action situation of flipper guide Stress control side, judge flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize; Last according to flipper guide Stress control side observed pressure P
actual measurementwith the pressure value P of setting
settingand flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize and tail part of band steel approaching side guide plate situation, decide flipper guide Stress control side and be switched to position control mode from Stress control.
2. side guide plate of recoiling machine compress control method as claimed in claim 1, is characterized in that: at band steel after entering plate rolling side guide, flipper guide Stress control side performs Stress control, records flipper guide Stress control side observed pressure P by pressure transducer
actual measurement, the pressure value P set in central processing unit
setting, pressure transducer is recorded flipper guide Stress control side observed pressure P
actual measurementbe transferred to central processing unit, offside guide plate Stress control side observed pressure P in central processing unit
actual measurementwith the pressure value P of setting
settingcarry out real-time judge, carry out action according to judged result flipper guide Stress control side position.
3. side guide plate of recoiling machine compress control method as claimed in claim 1, is characterized in that: in central processing unit, set flipper guide both sides aperture GAP
setting, follow the position action situation according to flipper guide Stress control side, drive flipper guide action by hydraulic cylinder, the throw of poston of hydraulic cylinder is the both sides aperture GAP of the flipper guide of actual measurement
actual measurement, hydraulic cylinder is by GAP
actual measurementpass to central processing unit, in central processing unit, judge flipper guide both sides aperture GAP
actual measurementwith setting aperture GAP
settingsize.
4. side guide plate of recoiling machine compress control method as claimed in claim 1, is characterized in that: the pressure controlled setting value P of flipper guide
settingwith steel grade thickness for basis of design, flipper guide aperture setting GAP
settingfor basis of design with steel grade width.
5. side guide plate of recoiling machine compress control method as claimed in claim 1, is characterized in that: flipper guide pressure P
actual measurement> P
setting, opening action is done in flipper guide Stress control side; Judge flipper guide aperture GAP simultaneously
actual measurement-GAP
setting>=Bmm, if GAP
actual measurement-GAP
setting>=Bmm, then Stress control is terminated in flipper guide Stress control side, and is switched to position control; If GAP
actual measurement-GAP
setting< Bmm, then flipper guide Stress control side is continued with P
settingfor foundation does Stress control, and carry out P in real time
actual measurementwith P
settingthe judgement of relation.
6. side guide plate of recoiling machine compress control method as claimed in claim 5, is characterized in that: described parameter B is set as 50mm.
7. side guide plate of recoiling machine compress control method as claimed in claim 1, is characterized in that: flipper guide pressure P
actual measurement=P
setting, flipper guide Stress control side keeps existing position to carry out Stress control, and carries out P in real time
actual measurementwith P
settingthe judgement of relation.
8. side guide plate of recoiling machine compress control method as claimed in claim 1, is characterized in that: flipper guide pressure P
actual measurement< P
setting, closing motion is done in flipper guide Stress control side; Judge flipper guide aperture GAP simultaneously
actual measurement-GAP
setting≤ Amm, if GAP
actual measurement-GAP
setting≤ Amm, then Stress control is terminated in flipper guide Stress control side, and is switched to position control; If GAP
actual measurement-GAP
setting> Amm, then flipper guide Stress control side is continued with P
settingfor foundation does Stress control, and carry out P in real time
actual measurementwith P
settingthe judgement of relation.
9. side guide plate of recoiling machine compress control method as claimed in claim 8, is characterized in that: described parameter A is set as 2mm.
10. side guide plate of recoiling machine compress control method as claimed in claim 1, it is characterized in that: after tail part of band steel approaching side guide plate, Stress control is terminated in flipper guide Stress control side, and is switched to position control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442427.7A CN104267753B (en) | 2014-09-02 | 2014-09-02 | Pressure control method for coiling machine side guide plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442427.7A CN104267753B (en) | 2014-09-02 | 2014-09-02 | Pressure control method for coiling machine side guide plate |
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| CN104267753A true CN104267753A (en) | 2015-01-07 |
| CN104267753B CN104267753B (en) | 2017-02-15 |
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| CN104815870A (en) * | 2015-04-18 | 2015-08-05 | 山西太钢不锈钢股份有限公司 | Side guide plate variable pressure control method of hot-continuous-rolled chromium-series stainless steel recoiling machine |
| CN105013859A (en) * | 2015-07-20 | 2015-11-04 | 北京首钢股份有限公司 | Method for reducing head towers of hot-rolled steel coils |
| CN106238473A (en) * | 2016-08-29 | 2016-12-21 | 山东钢铁股份有限公司 | A kind of side guide plate of recoiling machine compress control method |
| CN106583497A (en) * | 2016-12-13 | 2017-04-26 | 山东钢铁股份有限公司 | Control method for pressure of clamping and conveying roller of strip steel coiler |
| CN109127775A (en) * | 2018-08-24 | 2019-01-04 | 攀钢集团西昌钢钒有限公司 | Strip coiling method |
| CN113020268A (en) * | 2021-03-08 | 2021-06-25 | 莱芜钢铁集团银山型钢有限公司 | Coiler, side guide control method and method for dynamically controlling clamping time |
| CN113548520A (en) * | 2021-06-30 | 2021-10-26 | 武汉钢铁有限公司 | Self-adaptive control method and system for edge of coiled material |
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| CN113020268A (en) * | 2021-03-08 | 2021-06-25 | 莱芜钢铁集团银山型钢有限公司 | Coiler, side guide control method and method for dynamically controlling clamping time |
| CN113020268B (en) * | 2021-03-08 | 2023-01-17 | 莱芜钢铁集团银山型钢有限公司 | Coiler, side guide control method and method for dynamically controlling clamping time |
| CN113548520A (en) * | 2021-06-30 | 2021-10-26 | 武汉钢铁有限公司 | Self-adaptive control method and system for edge of coiled material |
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| CN104267753B (en) | 2017-02-15 |
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