CN103341524A - Calibration method for wrapper roll gaps of coiler - Google Patents
Calibration method for wrapper roll gaps of coiler Download PDFInfo
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- CN103341524A CN103341524A CN2013101407858A CN201310140785A CN103341524A CN 103341524 A CN103341524 A CN 103341524A CN 2013101407858 A CN2013101407858 A CN 2013101407858A CN 201310140785 A CN201310140785 A CN 201310140785A CN 103341524 A CN103341524 A CN 103341524A
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Abstract
The invention relates to the technical field of hot rolling, especially to a calibration method for wrapper roll gaps of a coiler. The method comprises: setting the wrapper rolls to be an automatic calibration mode on an HIMI apparatus; unloading a wrapper, fully retracting a cylinder rod of a hydraulic cylinder, calibrating a maximum roll gap of the wrapper roll; and calibrating a maximum outer diameter of an expanded reel. The method further comprises contracting the outer diameter of the reel to a clamp state so that the reel and the wrapper roll respectively rotate at a speed V1 and a speed V2, and extending the cylinder rod of the hydraulic cylinder to enable the wrapper roll close to the reel in a speed V3 until the wrapper roll contacts the reel. When a load torque Twr of a wrapper roll motor is greater than or equal to a target torque T0wr set by an automatic calibration control program, a wrapper roll gap value Gapwr is calibrated as zero. The calibration method for the wrapper roll gaps of the coiler provided by the invention can accurately calibrate the wrapper roll gaps of the coiler, and thus prevents damages of machinery equipment and accidents of steel stacking.
Description
Technical field
The present invention relates to the hot rolling technical field, particularly a kind of method of demarcation of coil wrapper roll roll gap.
Background technology
In the hot-strip production process, owing to help winding up roller and reel frame for movement impacted and friction by high strength, high temperature steel plate, make both produce mechanical wear, help the winding up roller roll gap to produce cumulative errors, for guaranteeing the equipment control function precision of coiling machine, need constantly helping the roll gap between winding up roller and the reel to demarcate again.After changing reel, helping equipment such as winding up roller, hydraulic cylinder, equally also need to demarcate.Therefore helping the winding up roller roll gap calibration is to batch one of important step in the production process.Traditional winding up roller roll gap calibration method that helps is that reel is rotated with identical speed with helping winding up roller, help winding up roller close to reel, when helping winding up roller and reel to collide the roll surface pressure of generation greater than the set target pressure value, and pressure oscillation is zero above helping the winding up roller roll gap calibration after stabilization time in target zone is set.That adopts that this method demarcates helps the winding up roller roll gap, during the band steel of thin specification steel grade, helps winding up roller often to clash into reel (being commonly called as " beating roller ") below batching thickness 3.0mm, has accelerated the damage of plant equipment, causes the generation of heap steel accident when serious.Has only the local winding up roller hydraulic cylinder full stroke that contacts or help between winding up roller and the reel when helping, help winding up roller can not contact fully with mandrel, the help judgement of winding up roller roll surface pressure and grating when relying on collision judge that the demarcation state is not enough, pressure can reach to demarcate fully sets threshold value, makes that demarcation is inaccurate.
Summary of the invention
Technical problem to be solved by this invention provides a kind of can the demarcation the coil wrapper roll roll gap accurately, prevents the method for the demarcation of the damage of plant equipment and the coil wrapper roll roll gap that the steel accident is piled in generation.
For solving the problems of the technologies described above, the invention provides a kind of method of demarcation of coil wrapper roll roll gap, comprising: on HMI equipment, will help winding up roller to be set at automatic calibration mode.The wrapper off-load is withdrawn hydraulic cylinder cylinder bar fully, demarcates and helps the maximum roll gap of winding up roller.The maximum outside diameter that expansion reaches to reel is demarcated.The external diameter of reel is retracted to the gripping state, makes reel and help winding up roller respectively with speed V1 and speed V2 rotation, hydraulic cylinder cylinder bar stretches out to make and helps winding up roller close until helping winding up roller to contact with reel to reel with speed V3.As the load torque T that helps the winding up roller motor
WrTarget torque T0 more than or equal to the automatic demarcation control program setting in the PLC system
WrThe time will help winding up roller gap values between rollers Gap
WrDemarcation is zero.
Further, described as the load torque T that helps the winding up roller motor
WrMore than or equal to demarcating the target torque T0 that control program is set automatically
WrThe time will help winding up roller gap values between rollers Gap
WrDemarcation is zero comprising: demarcate target setting torque T0 in the control program automatically in the PLC system
WrHelped the load torque T of winding up roller motor from the transmission system collection by the PLC system
WrControl program is demarcated automatically to helping the load torque T of winding up roller motor by the PLC system
WrWith target torque T0
WrRelatively, work as T
Wr〉=T0
Wr, and behind the stable 0-1s, will help winding up roller gap values between rollers Gap
WrDemarcation is zero.
Further, described speed V1 is 1-4.5m/s.Described speed V2 is 2.5-6m/s.Described speed V2 is greater than described speed V10-1.5m/s.
Further, also comprise: will help winding up roller gap values between rollers Gap
WrDemarcation is the negative gap values between rollers K of the additional compensation in zero back.PLC system log (SYSLOG) and displacement transducer numerical value L and the negative gap values between rollers K of compensation when preserving roll gap calibration and being zero.
Further, also comprise: after helping winding up roller gap values between rollers mark zero, reel and help winding up roller to stop operating is opened and is helped winding up roller arbitrary value in the hydraulic cylinder travel scope.
Further, the PLC system helps the load torque T of winding up roller motor from the transmission system collection by the Profibus_DP network
Wr
The scaling method of coil wrapper roll roll gap provided by the invention, the instantaneous torque that utilization helps winding up roller to contact generation with reel changes to judge zero roll gap, can judge to help winding up roller whether fully to contact with reel, can find to help winding up roller whether to contact mandrel by demarcating, make that demarcation is reliable, precision is high, solved because demarcating the inaccurate winding up roller that helps that occurs and clashed into problems such as reel.
Description of drawings
The scaling method flow chart of the coil wrapper roll roll gap that Fig. 1 provides for the embodiment of the invention.
The coiling machine system architecture schematic diagram that Fig. 2 provides for the embodiment of the invention.
The specific embodiment
Referring to Fig. 1 and Fig. 2, the embodiment of the invention provides a kind of scaling method of coil wrapper roll roll gap, the scaling method of the coil wrapper roll roll gap that the embodiment of the invention is provided is based on the coiling machine system specialization, at first the coiling machine system is described: referring to Fig. 2, the outer periphery of reel 1 is equipped with three and helps winding up roller 2, each helps and is connected with a hydraulic cylinder 3 on the winding up roller 2, is respectively arranged with a displacement transducer 8 on each hydraulic cylinder 3.Each helps 4, three motors 4 of motor that are connected with a band incremental encoder on the winding up roller 2 respectively all to be connected with transmission system 5.Transmission system 5 is by Profibus_DP network and PLC(Programmable Logic Controller, refer to programmable logic controller (PLC)) system's 6 connections, PLC system 6 connects by Ethernet and HMI (abbreviation of Human Machine Interface refers to man-machine interaction) equipment 7.Three displacement transducers 8 are connected with PLC system 6 by cable respectively.Referring to Fig. 1, the embodiment of the invention provides a kind of scaling method of coil wrapper roll roll gap to comprise:
Step 10: on HMI equipment, will help winding up roller to be set at automatic calibration mode.
Step 20: the wrapper off-load, hydraulic cylinder cylinder bar is withdrawn fully, demarcate and help the maximum roll gap of winding up roller.
Step 30: the maximum outside diameter that expansion reaches to reel is demarcated.Be specially: the built-in Driven by Hydraulic Cylinder reel of reel outwards expands, and makes the external diameter of reel reach maximum (the maximum outside diameter value of reel is 762mm in the present embodiment) and the maximum of outside barrel diameter is demarcated.
Step 40: the external diameter of reel is retracted to the gripping state, makes reel and help winding up roller to rotate respectively, hydraulic cylinder cylinder bar stretches out to make and helps winding up roller to move until helping winding up roller to contact with reel to reel.Be specially: the built-in hydraulic cylinder of reel is retracted to the gripping state (state when the gripping state of coiling machine refers to that reel is waited for the gripping steel band with the external diameter of reel, this moment, the external diameter of reel was 745mm), make reel with 1-4.5m/s(such as 2m/s) speed rotation, make and help winding up roller with V2=2.5-6m/s(such as 3m/s) speed rotation, need to prove, help the speed of winding up roller greater than speed 0-1.5m/s(such as the 1m/s of reel).Hydraulic cylinder cylinder bar stretches out to make and helps winding up roller to move until helping winding up roller to contact with reel to reel, helps speed that the winding up roller hydraulic cylinder rod stretches out first quick and back slow.The speed that helps the winding up roller hydraulic cylinder rod to stretch out determines that according to certainty of measurement, roll gap calibration precision and the nominal time of hydraulic cylinder travel, displacement transducer the method for determining is those skilled in the art of the present technique's known approaches.
Step 50: as the load torque T that helps the winding up roller motor
WrMore than or equal to demarcating the target torque T0 that sets in the control program automatically
WrThe time will help winding up roller gap values between rollers Gap
WrDemarcation is zero.Demarcate the target torque T0 that sets in the control program
WrValue is to help winding up roller contact reel with manual operation, reel and help winding up roller with the reel that equals to set under the automatic calibration mode and the speed rotation that helps winding up roller, and when roll gap is zero, the torque that helps the winding up roller motor to export at this moment.Be specially: target setting torque T0 in the PLC system
WrHelped the load torque T of winding up roller motor from the transmission system collection by the Profibus_DP network by the PLC system
WrControl program is demarcated automatically to helping the load torque T of winding up roller motor by the PLC system
WrWith target torque T0
WrRelatively, work as T
Wr〉=T0
Wr, and behind the stable 0-1s, will help winding up roller gap values between rollers Gap
WrDemarcation is zero.
Step 60: will help winding up roller gap values between rollers Gap
WrDemarcation is the negative gap values between rollers K of the additional compensation in zero back, and the negative gap values between rollers K of compensation helps the winding up roller roll gap mark reel extruding contraction distortion amount of zero moment, makes to help the roll gap of winding up roller roll gap when no press contacts reel more close to null value.PLC system log (SYSLOG) and displacement transducer numerical value L and the negative gap values between rollers K of compensation when preserving roll gap calibration and being zero, actual roll gap Gap
Wr=L+K.
Step 70: after helping winding up roller gap values between rollers mark zero, reel and help winding up roller to stop operating is opened and is helped winding up roller arbitrary value in the hydraulic cylinder travel scope, demarcates and finishes.
The scaling method of coil wrapper roll roll gap provided by the invention, the instantaneous torque that utilization helps winding up roller to contact generation with reel changes to judge zero roll gap, can judge to help winding up roller whether fully to contact with reel, can find to help winding up roller whether to contact mandrel by demarcating, make that demarcation is reliable, precision is high, prevent to help the problem of winding up roller bump reel.
The embodiment of the invention has following beneficial effect:
1, utilize the instantaneous torque that helps winding up roller to contact generation with reel to change to judge zero roll gap, can judge to help winding up roller whether fully to contact with reel, can find to help winding up roller whether to contact mandrel by demarcating, make that demarcation is reliable, precision is high, solved because demarcating the inaccurate problem that helps winding up roller bump reel that occurs.
2, scaling method is simple, reliable, is convenient to implement in a large number in industrial production.
It should be noted last that, the above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to example the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. the scaling method of a coil wrapper roll roll gap comprises:
On HMI equipment, will help winding up roller to be set at automatic calibration mode;
The wrapper off-load is withdrawn hydraulic cylinder cylinder bar fully, demarcates and helps the maximum roll gap of winding up roller;
The maximum outside diameter that expansion reaches to reel is demarcated;
It is characterized in that, also comprise:
The external diameter of reel is retracted to the gripping state, makes reel and help winding up roller respectively with speed V1 and speed V2 rotation, hydraulic cylinder cylinder bar stretches out to make and helps winding up roller close until helping winding up roller to contact with reel to reel with speed V3;
As the load torque T that helps the winding up roller motor
WrTarget torque T0 more than or equal to the automatic demarcation control program setting in the PLC system
WrThe time will help winding up roller gap values between rollers Gap
WrDemarcation is zero.
2. the scaling method of coil wrapper roll roll gap according to claim 1 is characterized in that, and is described as the load torque T that helps the winding up roller motor
WrMore than or equal to demarcating the target torque T0 that control program is set automatically
WrThe time will help winding up roller gap values between rollers Gap
WrDemarcation is zero comprising:
Automatically demarcate target setting torque T0 in the control program in the PLC system
Wr
Helped the load torque T of winding up roller motor from the transmission system collection by the PLC system
Wr
Control program is demarcated automatically to helping the load torque T of winding up roller motor by the PLC system
WrWith target torque T0
WrRelatively, work as T
Wr〉=T0
Wr, and behind the stable 0-1s, will help winding up roller gap values between rollers Gap
WrDemarcation is zero.
3. the scaling method of coil wrapper roll roll gap according to claim 1 is characterized in that, described speed V1 is 1-4.5m/s;
Described speed V2 is 2.5-6m/s;
Described speed V2 is greater than described speed V1 0-1.5m/s.
4. the scaling method of coil wrapper roll roll gap according to claim 1 is characterized in that, also comprises:
To help winding up roller gap values between rollers Gap
WrDemarcation is the negative gap values between rollers K of the additional compensation in zero back;
PLC system log (SYSLOG) and displacement transducer numerical value L and the negative gap values between rollers K of compensation when preserving roll gap calibration and being zero.
5. the scaling method of coil wrapper roll roll gap according to claim 1 is characterized in that, also comprises:
After helping winding up roller gap values between rollers mark zero, reel and help winding up roller to stop operating is opened and is helped winding up roller arbitrary value in the hydraulic cylinder travel scope.
6. the scaling method of coil wrapper roll roll gap according to claim 2 is characterized in that, the PLC system helps the load torque T of winding up roller motor from the transmission system collection by the Profibus_DP network
Wr
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101407858A CN103341524A (en) | 2013-04-18 | 2013-04-18 | Calibration method for wrapper roll gaps of coiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101407858A CN103341524A (en) | 2013-04-18 | 2013-04-18 | Calibration method for wrapper roll gaps of coiler |
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| CN2013101407858A Pending CN103341524A (en) | 2013-04-18 | 2013-04-18 | Calibration method for wrapper roll gaps of coiler |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438438A (en) * | 2014-11-08 | 2015-03-25 | 马钢(集团)控股有限公司 | Method for correcting precision of roll gap of CSP wrapper roller |
| CN105834245A (en) * | 2015-01-12 | 2016-08-10 | 宝山钢铁股份有限公司 | Method for opening roll gap of wrapper roller based on diameter rate-of-change of drum |
| CN105834244A (en) * | 2015-01-12 | 2016-08-10 | 宝山钢铁股份有限公司 | Method for correcting stepping control of wrapper roller of coiler |
| CN105834225A (en) * | 2016-05-03 | 2016-08-10 | 首钢京唐钢铁联合有限责任公司 | Thickness controlling method for flying gauge changing rolling of cold tandem mill and controlling system for cold tandem mill |
| CN106216432A (en) * | 2016-07-26 | 2016-12-14 | 山西太钢不锈钢股份有限公司 | A kind of method solving hot rolling reeling heavy gauge steel strip reel skidding heap steel |
| CN106269877A (en) * | 2016-08-25 | 2017-01-04 | 山东钢铁股份有限公司 | A kind of coil wrapper roll roll gap automatic Calibration and precision test method |
| CN106925625A (en) * | 2017-05-05 | 2017-07-07 | 山东钢铁股份有限公司 | A kind of automatic calibration method of hot-strip reels reel |
| CN109115475A (en) * | 2018-06-29 | 2019-01-01 | 首钢京唐钢铁联合有限责任公司 | A kind of detection method of Wrapping Roll device extent of deterioration |
| CN109772638A (en) * | 2018-12-10 | 2019-05-21 | 首钢智新迁安电磁材料有限公司 | A kind of cold rolled silicon steel applies the scaling method of roller pressure |
| CN109834132A (en) * | 2019-03-27 | 2019-06-04 | 山西太钢不锈钢股份有限公司 | Coil wrapper roll acyclic homologically trioial control method |
| CN111633031A (en) * | 2020-04-30 | 2020-09-08 | 首钢京唐钢铁联合有限责任公司 | Wrapper roll calibration method and device |
| CN113305177A (en) * | 2021-05-12 | 2021-08-27 | 首钢京唐钢铁联合有限责任公司 | Coiling machine, method and device for clearing tracking information of plate coil of coiling machine and storage medium |
| CN113996671A (en) * | 2021-10-29 | 2022-02-01 | 张家港宏昌钢板有限公司 | Wrapper roller gap calibration method, device, equipment and storage medium |
| CN114101333A (en) * | 2021-11-08 | 2022-03-01 | 包头钢铁（集团）有限责任公司 | Hot rolled strip steel recoiling machine auxiliary winding roller static calibration method |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438438A (en) * | 2014-11-08 | 2015-03-25 | 马钢(集团)控股有限公司 | Method for correcting precision of roll gap of CSP wrapper roller |
| CN105834245A (en) * | 2015-01-12 | 2016-08-10 | 宝山钢铁股份有限公司 | Method for opening roll gap of wrapper roller based on diameter rate-of-change of drum |
| CN105834244A (en) * | 2015-01-12 | 2016-08-10 | 宝山钢铁股份有限公司 | Method for correcting stepping control of wrapper roller of coiler |
| CN105834245B (en) * | 2015-01-12 | 2017-10-31 | 宝山钢铁股份有限公司 | A kind of Wrapping Roll roll gap deployment method based on drum diameter rate of change |
| CN105834225A (en) * | 2016-05-03 | 2016-08-10 | 首钢京唐钢铁联合有限责任公司 | Thickness controlling method for flying gauge changing rolling of cold tandem mill and controlling system for cold tandem mill |
| CN105834225B (en) * | 2016-05-03 | 2018-06-29 | 首钢京唐钢铁联合有限责任公司 | The method for controlling thickness and control system of cold continuous rolling dynamic variable specification rolling |
| CN106216432B (en) * | 2016-07-26 | 2018-04-20 | 山西太钢不锈钢股份有限公司 | A kind of method for solving hot rolling reeling heavy gauge steel strip reel skidding piling of steel |
| CN106216432A (en) * | 2016-07-26 | 2016-12-14 | 山西太钢不锈钢股份有限公司 | A kind of method solving hot rolling reeling heavy gauge steel strip reel skidding heap steel |
| CN106269877A (en) * | 2016-08-25 | 2017-01-04 | 山东钢铁股份有限公司 | A kind of coil wrapper roll roll gap automatic Calibration and precision test method |
| CN106269877B (en) * | 2016-08-25 | 2018-04-06 | 山东钢铁股份有限公司 | A kind of coil wrapper roll roll gap automatic Calibration and precision test method |
| CN106925625A (en) * | 2017-05-05 | 2017-07-07 | 山东钢铁股份有限公司 | A kind of automatic calibration method of hot-strip reels reel |
| CN106925625B (en) * | 2017-05-05 | 2019-01-04 | 山东钢铁股份有限公司 | A kind of automatic calibration method of hot-strip reels reel |
| CN109115475A (en) * | 2018-06-29 | 2019-01-01 | 首钢京唐钢铁联合有限责任公司 | A kind of detection method of Wrapping Roll device extent of deterioration |
| CN109772638B (en) * | 2018-12-10 | 2020-08-21 | 首钢智新迁安电磁材料有限公司 | Method for calibrating cold-rolled silicon steel roller coating pressure |
| CN109772638A (en) * | 2018-12-10 | 2019-05-21 | 首钢智新迁安电磁材料有限公司 | A kind of cold rolled silicon steel applies the scaling method of roller pressure |
| CN109834132A (en) * | 2019-03-27 | 2019-06-04 | 山西太钢不锈钢股份有限公司 | Coil wrapper roll acyclic homologically trioial control method |
| CN111633031A (en) * | 2020-04-30 | 2020-09-08 | 首钢京唐钢铁联合有限责任公司 | Wrapper roll calibration method and device |
| CN111633031B (en) * | 2020-04-30 | 2022-04-26 | 首钢京唐钢铁联合有限责任公司 | Wrapper roll calibration method and device |
| CN113305177A (en) * | 2021-05-12 | 2021-08-27 | 首钢京唐钢铁联合有限责任公司 | Coiling machine, method and device for clearing tracking information of plate coil of coiling machine and storage medium |
| CN113996671A (en) * | 2021-10-29 | 2022-02-01 | 张家港宏昌钢板有限公司 | Wrapper roller gap calibration method, device, equipment and storage medium |
| CN113996671B (en) * | 2021-10-29 | 2024-03-08 | 江苏沙钢钢铁有限公司 | Method, device, equipment and storage medium for calibrating roll gap of wrapper roll |
| CN114101333A (en) * | 2021-11-08 | 2022-03-01 | 包头钢铁（集团）有限责任公司 | Hot rolled strip steel recoiling machine auxiliary winding roller static calibration method |
| CN114101333B (en) * | 2021-11-08 | 2023-04-18 | 包头钢铁（集团）有限责任公司 | Hot rolled strip steel recoiling machine auxiliary winding roller static calibration method |
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Application publication date: 20131009 |