CN106311752B - A kind of strip finish rolling shape wave that improves causes the control method and system for batching side damage - Google Patents
A kind of strip finish rolling shape wave that improves causes the control method and system for batching side damage Download PDFInfo
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- CN106311752B CN106311752B CN201510348732.4A CN201510348732A CN106311752B CN 106311752 B CN106311752 B CN 106311752B CN 201510348732 A CN201510348732 A CN 201510348732A CN 106311752 B CN106311752 B CN 106311752B
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Abstract
Cause the control method and system for batching side damage the present invention relates to a kind of improvement strip finish rolling shape wave, the present invention is to export strip shape wave glacing flatness detected value according to finish rolling, adjustment plate rolling side guide aperture added value setting value in real time, and then improve the control technology for batching side damage, solve prior art mainly to control by plate rolling side guide position on the damage of hot-strip scroll edge, Coiling Tension Control etc. is improved, improve limited extent, due to manual intervention, information transmission is caused to be delayed, hysteresis, flipper guide has little time to act, it is difficult to effectively avoid and mitigate the problem of strip edge caused by shape wave damages defect.
Description
Technical field
The present invention relates to hot strip rolling technical field, and in particular to one kind improvement strip finish rolling shape wave, which causes, batches side damage
Control method and system, applied to reduce finish rolling outlet shape wave caused by batch edge damage technology.
Background technology
The technological process of hot tandem is roughly divided into heating, roughing, finish rolling, the process such as batches.Finish rolling outlet is provided with flat
Straightness detector, it can quantify to detect finish rolling outlet shape wave size.Device is led on the roller-way in the side of coiling machine, be transmission side and
Fore side both sides are arranged symmetrically, and to improving scroll, and are smoothly batched and are played an important role.
Steel edge portion damage defect is scraped mainly due to steel edge portion with plate rolling side guide to be caused, occurred in thickness<6mm
Strip.The hot rolled plate of edge damage defect can have a strong impact on that user uses, and may cause broken belt when cold rolling continues production
Accident, so steel edge portion damage is the unacceptable defect of user, it is necessary to cut off defect part in finishing procedure, so
Quality cost can be caused to lose.
The species of edge damage is more, and formation mechenism is complicated, is found by research, side is batched caused by finish rolling shape wave
The proportion that portion's damage accounts for is larger.
When changing specification, when jumping larger due to width, temperature, hardness, PFC setting value is not in place, Yi Jiji for finish rolling
The limitation of layout is drawn, causes finish rolling outlet serious edge shape wave occur and is difficult to avoid that, the irregular edge to after batching
Shape passes through the friction of plate rolling side guide, causes edge to be damaged.
Influence to batch the size that the most important reason damaged on side is finish rolling outlet shape wave.Shape wave conference causes steel edge portion with leading
Plate scrapes and then damages steel edge portion and then cause side to damage defect, and in general, shape wave is bigger, scrapes more serious, side damage defect
It is more serious.All the time, the damage of hot-strip scroll edge mainly passes through the control of plate rolling side guide position, coiling tension control
System etc. is improved, but improves limited extent, it is difficult to is effectively avoided and is mitigated this defect.
Existing control technology can not predict supplied materials shape wave information due to batching region, also just can not be according to shape wave situation to volume
Take flipper guide to be controlled accordingly, verbal communication relevant information between operation can only be passed through.Railway Project so be present：
1, information transmission delay, plus the hysteresis quality of manual intervention, often guide plate has little time to act.
2, information transmission mistake and manual intervention mistake, cause guide plate action inaccurate, or even excessively intervene and cause negative shadow
Ring.
3, operative skill difference causes teams and groups and personal control difference, causes quality fluctuation be present.
The content of the invention
Cause the control method for batching side damage, described control it is an object of the invention to provide a kind of improvement strip finish rolling shape wave
Method processed exports Flatness Tester by finish rolling and detects strip shape wave data in real time, is supplied to batches region in real time, and according to
Actual shape wave data are accordingly controlled plate rolling side guide aperture, improve and side damage is batched caused by finish rolling shape wave, to solve
Prior art is mainly entered on the damage of hot-strip scroll edge by the control of plate rolling side guide position, Coiling Tension Control etc.
Row improves, and improves limited extent, due to manual intervention, causes information transmission delay, hysteresis, flipper guide has little time to act, it is difficult to
Effectively avoid and mitigate the problem of strip edge caused by shape wave damages defect.
To achieve the above object, the solution of the present invention is：A kind of strip finish rolling shape wave that improves causes the control for batching side damage
Method, described control method are provided for detecting the Flatness Tester of the shape wave of finish rolling outlet steel plate in finish rolling outlet,
Side is batched, for batching in basic automatization computer for plate rolling side guide aperture adjustment, the initial of plate rolling side guide is set and opens
Angle value；
Described control method specifically comprises the following steps：
(1) after strip is shut out by mm finishing mill unit, the Flatness Tester exported by finish rolling detects the shape wave of strip in real time, and
The shape wave data detected are sent to finish rolling basic automatization computer in real time, while finish rolling basic automatization computer is by institute
State shape wave data and be sent in real time and batch basic automatization computer；
(2) shape wave data of the basic automatization computer according to fine-rolling strip steel are batched, calculate the aperture added value of flipper guide,
The described setting batched basic automatization computer and adjust aperture initial set value+aperture added value as flipper guide aperture
Value；
(3) after the reel of coiling machine stings steel, batch basic automatization computer will sting steel signal be sent to finish rolling basis
Automated computer；
(4) the finish rolling basic automatization computer described in receives sting steel signal after, according to Flatness Tester detect institute
Shape wave data are stated, the instruction of flipper guide aperture regulation is sent to basic automatization computer is batched；
(5) described in batch basic automatization computer receive aperture regulation instruction after, by controlling flipper guide oil cylinder to move
Make, adjust the aperture of flipper guide, the actual opening value of flipper guide is reached the opening value of setting；
(6) the basic automatization computer that batches described in is compared the actual opening value of flipper guide and setting opening value
Compared with if the actual aperture of flipper guide not up to setting opening value, flipper guide aperture, Zhi Daosuo are readjusted according to step (5)
The actual aperture of flipper guide stated reaches setting value, completes the control of flipper guide aperture.
Cause the control method for batching side damage, described step (4) according to improvement strip finish rolling shape wave of the present invention
In, flipper guide aperture added value is obtained according to control experience.
Cause the control method for batching side damage, Flatness Tester inspection according to improvement strip finish rolling shape wave of the present invention
The shape wave value scope of survey is 0~150um, and described shape wave value is divided into 3 shape wave extent control levels, i.e., respectively 0-50um,
50-100um and 100-150um.
Cause the control method for batching side damage, described step (5) according to improvement strip finish rolling shape wave of the present invention
In, the described basic automatization computer that batches sends servo system of the control signal to flipper guide, passes through described servo
Valve system control cylinder acts.
Cause the control method for batching side damage, described step (6) according to improvement strip finish rolling shape wave of the present invention
In, the actual opening value of the flipper guide is detected by the position sensor set in flipper guide oil cylinder, and feeds back to volume
Take basic automatization computer.
It is described the present invention also aims to provide a kind of strip finish rolling shape wave that improves to cause the control system batched side and damaged
Control system finish rolling export set flatness detection system, curled regions set plate rolling side guide control system, it is straight
Spend detecting system to be used to detect strip shape wave measured data in real time, and be supplied to plate rolling side guide opening control system in real time, and
Plate rolling side guide aperture is accordingly controlled according to the actual measurement shape wave data of strip by plate rolling side guide opening control system, changed
Side damage is batched caused by kind finish rolling shape wave, mainly passes through volume on the damage of hot-strip scroll edge to solve prior art
Take the control of flipper guide position, Coiling Tension Control etc. to be improved, improve limited extent, due to manual intervention, cause information to pass
Deferred mistake, hysteresis, flipper guide have little time to act, it is difficult to effectively avoid and mitigate the problem of strip edge caused by shape wave damages defect.
To achieve the above object, the solution of the present invention is：A kind of strip finish rolling shape wave that improves causes the control for batching side damage
System, described control system include being arranged at the flatness detection system in finish rolling region and being arranged at batching batching for region
Flipper guide control system, described flatness detection system include finish rolling basic automatization computer and Flatness Tester,
Described plate rolling side guide control system includes batching basic automatization computer, flipper guide servo system and flipper guide oil
Cylinder；
Described Flatness Tester is arranged at finish rolling outlet, the shape wave actual measurement exported for detecting strip in real time in finish rolling
Data, the signal output port of the Flatness Tester is connected with the input port of finish rolling basic automatization computer, described
Flatness Tester be used to the shape wave measured data of strip being sent in real time and finish rolling basic automatization computer and batch base
Plinth automated computer；
The input/output port of finish rolling basis automatic computing engine and the input and output for batching basic automatization computer
Port connects, and described finish rolling basic automatization computer is used to send the shape wave measured data in real time to curling basis automatically
Change computer, while receive batch basic automatization computer transmission sting steel signal after, send aperture regulation instruct to
Basic automatization computer is batched, the described basic automatization computer that batches controls flipper guide by flipper guide servo system
Cylinder action, adjust flipper guide aperture；
Position sensor is set in described flipper guide oil cylinder, and the signal output part connection of the position sensor is batched
Basic automatization computer, for detecting the physical location of flipper guide, and it is sent to and batches basic automatization computer.
The beneficial effect that the present invention reaches：The present invention is accurately adjusted according to strip shape wave measured data offside guide plate aperture
It is whole, the edge damage defect of strip is substantially improved, and due to reducing manual intervention, so as to avoid human error, side is led
The action of plate is more accurate, and control accuracy is high, simultaneously as using automatic control mode, greatly improves operating efficiency.
Brief description of the drawings
Fig. 1 is the Control system architecture schematic diagram of the present invention；
Fig. 2 is the control method flow chart of the present invention.
In figure, 1 is strip, and 10 be finish rolling region, and 11 be the F7 frames of mm finishing mill unit, and 12 be Flatness Tester, and 13 are
Finish rolling basic automatization computer, 20 is batch region, and 21 be reel, and 22 is batch basic automatization computer, and 23 lead for side
The servo system of plate, 24 be flipper guide oil cylinder, and 25 be flipper guide, and 26 be position sensor.
Embodiment
The present invention is further detailed explanation with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the control system of the present invention includes being arranged at flatness detection system and the setting in finish rolling region
In the plate rolling side guide control system for batching region, described flatness detection system is used for the shape wave actual measurement number for detecting strip
According to the position that described curling flipper guide control system is used for flipper guide controls.Described flatness detection system includes finish rolling
Basic automatization computer 13 and Flatness Tester 12, described plate rolling side guide control system include batching basis automatically
Change computer 22, flipper guide servo system 23 and flipper guide oil cylinder 24.
Described Flatness Tester 12 is arranged at after finish rolling F7 frames 11, is gone out for detecting strip 1 in real time in finish rolling
Mouthful shape wave measured data, the signal output port of the Flatness Tester 12 is defeated with finish rolling basic automatization computer 13
Inbound port connects, and it is automatic that the strip shape wave measured data that described Flatness Tester 12 detects is sent to finish rolling basis in real time
Change computer 13；
The input/output port of finish rolling basis automatic computing engine 13 and the input for batching basic automatization computer 22
Output port connects, and described finish rolling basic automatization computer 13 gives curling base for sending the shape wave measured data in real time
Plinth automated computer 22, at the same receive batch basic automatization computer 22 transmission sting steel signal after, send aperture
To basic automatization computer 22 is batched, the described basic automatization computer 22 that batches passes through flipper guide servo valve for regulating command
System 23 controls flipper guide cylinder action, adjusts the aperture of flipper guide 25；
Position sensor 26 is set in described flipper guide oil cylinder 24, and the signal output part of the position sensor 26 connects
Connect and batch basic automatization computer 22, for detecting the physical location of flipper guide 25, and be sent to and batch basic automatization meter
Calculation machine 22.
As shown in Fig. 2 the specific work process of control system of the present invention is as follows：
Step 1, after strip is shut out by the F7 frames 11 of mm finishing mill unit, the Flatness Tester 12 exported by finish rolling is examined in real time
The shape wave of measuring tape steel, and the shape wave data detected are sent to finish rolling basic automatization computer 13, while finish rolling base in real time
The shape wave data are sent to and batch basic automatization computer 22 by plinth automated computer in real time, batch basic automatization meter
The initial opening value of setting plate rolling side guide in calculation machine 22.
Step 2, shape wave data of the basic automatization computer 22 according to fine-rolling strip steel are batched, the aperture for calculating flipper guide is attached
Value added, described batches aperture of the basic automatization computer 22 using aperture initial set value+aperture added value as flipper guide
Setting value.
Step 3, after region 20 is batched in strip arrival, and the reel 21 of coiling machine stings steel, basic automatization calculating is batched
Machine 22 will sting steel signal and be sent to finish rolling basic automatization computer 13.
Step 4, described finish rolling basic automatization computer 13 receives sting steel signal after, examined according to Flatness Tester 12
The shape wave data surveyed, the instruction of flipper guide aperture regulation is sent to basic automatization computer 22 is batched.
The shape wave data area that Flatness Tester 12 detects is 0~150um, and the present embodiment divides described shape wave data
For 3 shape wave extent control levels, i.e. respectively 0-50um, 50-100um and 100-150um.
| Finish rolling outlet plate shape detected value/um | Plate rolling side guide position sets added value/mm |
| 0-50 | 2~4 |
| 50-100 | 4~6 |
| 100-150 | 6~8 |
Step 5, the described basic automatization that batches calculates, and after 22 receive aperture regulation instruction, passes through the servo of flipper guide
Valve system 23 controls flipper guide oil cylinder 24 to act, and adjusts the aperture of flipper guide 25, the actual aperture of flipper guide is reached setting aperture
Value.
Step 6, the position sensor set in flipper guide oil cylinder detects the actual opening value of flipper guide in real time, and is sent to
Batch basic automatization computer 22.
Step 7, basic automatization computer 22 is batched to be compared the actual opening value of flipper guide 25 and setting opening value
Compared with if the actual aperture of flipper guide is not reaching to the opening value of setting, recalculating flipper guide aperture according to step (4) and add
Value, flipper guide aperture actual value is adjusted, until described flipper guide aperture reaches setting opening value, completion flipper guide aperture control
System.
The tool that control method of the present invention is implemented in the producing line of Baoshan Iron ＆ Steel Co., Ltd's hot rolling mill 2050 is described below
Body control parameter：
| Finish rolling outlet shape wave detected value (um) | Flipper guide aperture added value (mm) |
| 0~50 | 3 |
| 50~100 | 5 |
| 100~150 | 7 |
The present invention is to export strip shape wave glacing flatness detected value according to finish rolling to add to adjust plate rolling side guide aperture in real time
It is worth setting value, and then improves the control technology for batching side damage.The present invention enters according to strip shape wave measured data offside guide plate aperture
The accurate adjustment of row, the edge damage defect of strip is substantially improved, and due to reducing manual intervention, so as to avoid artificial mistake
By mistake, the action of flipper guide is more accurate, and control accuracy is high, simultaneously as using automatic control mode, greatly improves work effect
Rate.
Claims (5)
1. a kind of strip finish rolling shape wave that improves causes the control method for batching side damage, it is characterised in that：Described control method exists
Finish rolling outlet is provided for detecting the Flatness Tester of the shape wave of finish rolling outlet steel plate, side is being batched, for plate rolling side guide
Batching in basic automatization computer for aperture adjustment, sets the initial opening value of plate rolling side guide；
Described control method specifically comprises the following steps：
（1）After strip is shut out by mm finishing mill unit, the Flatness Tester exported by finish rolling detects the shape wave of strip in real time, and will examine
The shape wave data measured are sent to finish rolling basic automatization computer in real time, while finish rolling basic automatization computer is by the wave
Graphic data is sent in real time batches basic automatization computer；
（2）Shape wave data of the basic automatization computer according to fine-rolling strip steel are batched, set the aperture added value of flipper guide, it is described
The setting value batched basic automatization computer and adjust aperture initial set value+aperture added value as flipper guide aperture；
（3）After the reel of coiling machine stings steel, steel signal will be stung to be sent to finish rolling basis automatic by batching basic automatization computer
Change computer；
（4）Described finish rolling basic automatization computer receives sting steel signal after, according to Flatness Tester detect the wave
Graphic data, the instruction of flipper guide aperture regulation is sent to basic automatization computer is batched；
（5）It is described to batch after basic automatization computer receives aperture regulation instruction, by controlling flipper guide cylinder action, adjust
The aperture of whole side guide plate, the actual opening value of flipper guide is set to reach the opening value of setting；
（6）Described batches basic automatization computer by the actual opening value of flipper guide compared with setting opening value, such as
The actual aperture of fruit flipper guide not up to sets opening value, then according to step（5）Flipper guide aperture is readjusted, until described side
The actual aperture of guide plate reaches setting value, completes the control of flipper guide aperture.
2. the strip finish rolling shape wave according to claim 1 that improves causes the control method for batching side damage, it is characterised in that institute
The step of stating（2）In, flipper guide aperture added value is obtained according to control experience.
3. the strip finish rolling shape wave according to claim 1 that improves causes the control method for batching side damage, it is characterised in that flat
The shape wave value scope of straightness detector detection is 0 ~ 150um, and described shape wave value is divided into 3 shape wave extent control levels, that is, divided
Wei not 0-50um, 50-100um and 100-150um.
4. the strip finish rolling shape wave according to claim 1 that improves causes the control method for batching side damage, it is characterised in that institute
The step of stating（6）In, the actual opening value of the flipper guide is detected by the position sensor set in flipper guide oil cylinder,
And feed back to and batch basic automatization computer.
A kind of 5. control system using control method as claimed in claim 1, it is characterised in that：Described control system includes
It is arranged at the flatness detection system in finish rolling region and is arranged at the plate rolling side guide control system for batching region, described is flat
Straight degree detecting system includes finish rolling basic automatization computer and Flatness Tester, described plate rolling side guide control system
Including batching basic automatization computer, flipper guide servo system and flipper guide oil cylinder；
Described Flatness Tester is arranged at finish rolling outlet, and number is surveyed in the shape wave that finish rolling exports for detecting strip in real time
According to the signal output port of the Flatness Tester is connected with the input port of finish rolling basic automatization computer, described
Flatness Tester is used to the strip shape wave measured data detected being sent to finish rolling basic automatization computer in real time；
The input/output port of the finish rolling basic automatization computer and the input/output terminal for batching basic automatization computer
Mouthful connection, described finish rolling basic automatization computer are used to send the shape wave measured data in real time to batching basic automatization
Computer, at the same receive batch basic automatization computer transmission sting steel signal after, send aperture regulation instruct to volume
Basic automatization computer is taken, the described basic automatization computer that batches controls flipper guide oil by flipper guide servo system
Cylinder acts, and adjusts flipper guide aperture；
Position sensor is set in described flipper guide oil cylinder, and basis is batched in the signal output part connection of the position sensor
Automated computer, for detecting the physical location of flipper guide, and it is sent to and batches basic automatization computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510348732.4A CN106311752B (en) | 2015-06-19 | 2015-06-19 | A kind of strip finish rolling shape wave that improves causes the control method and system for batching side damage |
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|---|---|---|---|
| CN201510348732.4A CN106311752B (en) | 2015-06-19 | 2015-06-19 | A kind of strip finish rolling shape wave that improves causes the control method and system for batching side damage |
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| CN107377633B (en) * | 2017-07-07 | 2019-09-20 | 首钢京唐钢铁联合有限责任公司 | Control and monitoring method for hot-rolled tin plate twill defects |
| CN108817089B (en) * | 2018-04-28 | 2020-02-21 | 江苏省沙钢钢铁研究院有限公司 | Control method for hot rolling thin-specification strip steel coil |
| CN111922120A (en) * | 2020-07-09 | 2020-11-13 | 首钢京唐钢铁联合有限责任公司 | Method for preventing side guide plate of coiling machine from clamping steel |
| CN115415323A (en) * | 2022-10-14 | 2022-12-02 | 梧州市永达钢铁有限公司 | Control method and device for reducing edge damage in steel strip coiling process |
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| JPH1043807A (en) * | 1996-07-31 | 1998-02-17 | Kawasaki Steel Corp | Control method of inlet side guide in hot tandem rolling |
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