CN106734243B - The bending roller force feedforward compensation method and compensation system of a kind of cold-rolling mill - Google Patents
The bending roller force feedforward compensation method and compensation system of a kind of cold-rolling mill Download PDFInfo
- Publication number
- CN106734243B CN106734243B CN201611180077.7A CN201611180077A CN106734243B CN 106734243 B CN106734243 B CN 106734243B CN 201611180077 A CN201611180077 A CN 201611180077A CN 106734243 B CN106734243 B CN 106734243B
- Authority
- CN
- China
- Prior art keywords
- force
- roll
- value
- acceleration
- deceleration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
Abstract
The invention discloses a kind of bending roller force feedforward compensation methods of cold-rolling mill, first according to as-rolled condition, velocity amplitude, acceleration deceleration state determines feedforward compensation enable signal, roll-force a reference value of the roll-force average value as this acceleration and deceleration process under the sampling instant preservation for rising edge occur in enable signal, roll-force a reference value, which is subtracted, using roll-force actual value can obtain roll-force undulating value, corresponding bending roller force changing value is obtained according to roll-force undulating value, finally bending roller force changing value is attached on the corner flowt value of acceleration and deceleration last moment last time preservation and obtains final corner flowt value, obtained final corner flowt value is added on work roll bending power setting value, this bending roller force feedforward compensation method can be completed by the execution of bending roller force hydraulic cylinder.The present invention also provides a kind of bending roller force feed-forward compensation systems of cold-rolling mill.Automated manner precision of the present invention is high, response is rapid, real-time is good, can effectively improve the Strip Shape Control precision in milling train acceleration and deceleration stage.
Description
Technical field
The invention belongs to Mill shape control technology fields, and in particular to a kind of Reversible Single Stand Cold Rolling Mill or multi-frame are cold
The bending roller force feedforward compensation method and compensation system of milling train.
Background technology
Multiple acceleration and deceleration process can be undergone in cold-rolling mill rolling process：After milling train plays vehicle, it can generally pass through and repeatedly accelerate
Until reaching stable rolling speed；When a coil will roll completion, will also pass through slow down several times gradually reduction of speed to zero.It is rolling
The technological parameters such as machine acceleration and deceleration stage, roll-force, tension, roll gap are all in larger state is fluctuated, so as to affect strip
Plate shape index.In general, the plate shape value fluctuation in acceleration and deceleration stage is larger, and undulating value can reach 2 times or more during speed stabilizing, from
And the phenomenon that causing steel edge portion waviness, is relatively more.The operative employee of steel rolling mill generally can be according to field experience in acceleration and deceleration stage hand
It is dynamic to adjust work roll bending power, change the convexity of roll by adjusting work roll bending power, detect by an unaided eye belt plate shape,
During low speed when belt plate shapes adjust relatively good again raising speed to stable rolling speed.Acceleration and deceleration rank can partly be solved by doing so
The problem of shape fluctuation of section plate is big, but also there are following drawbacks for this mode：
(1) manual degree of regulation is extremely limited, and more skilled operative employee can only also ensure that adjusting trend will not be wrong, and roller
The compensation rate of power is unlikely to be accurate；This is because high-precision bending roller force adjusting is real-time change according to roll-force variation
, adjust manually can only slope be turned up or reduce bending roller force, it is impossible to follow the variation of roll-force in real time；
(2) adjust and normally only completed in low speed manually, behind boosting velocity procedure by a relatively large margin no longer adjust；
(3) it adjusts manually time-consuming longer；It is general first rule of thumb to provide a bending roller force in advance in order to accelerate governing speed
Regulated quantity, then observe a period of time plate shape situation, if plate shape situation preferably if no longer adjust, if plate shape situation is undesirable
Also to continue to adjust, therefore the entire adjusting process used time is longer.
Invention content
The purpose of the present invention is to provide the bending roller force feedforward compensation method and compensation system of a kind of cold-rolling mill, this method and
System is automatically performed in the PLC controller of Basic automation level, can be in real time according to rolling fluctuation without manually adjusting
Amount adjusts work roll bending power, to improve Strip Shape Control precision of the strip in the acceleration and deceleration stage.
The invention is realized in this way：
A kind of bending roller force feedforward compensation method of cold-rolling mill, includes the following steps：
S00, as-rolled condition, mill speed and the acceleration/deceleration signal for acquiring cold-rolling mill, and above-mentioned data transfer is controlled to PLC
Device processed；
S10, feedforward compensation enable signal is determined according to the as-rolled condition, mill speed and acceleration/deceleration signal of cold-rolling mill；
S20, the roll-force a reference value for calculating this acceleration and deceleration process；
The average value of roll-force whithin a period of time is constantly calculated, the sampling of rising edge occurs in feedforward compensation enable signal
Moment preserves roll-force average value at this time, and using the roll-force average value as the roll-force benchmark during this acceleration and deceleration
Value.
S30, roll-force calculated with actual values work roll bending power variable quantity is utilized
Using roll-force a reference value, roll-force is practical is worth to roll-force undulating value, this is worth to according to roll-force fluctuation
The bending roller force changing value of secondary acceleration and deceleration；
S40, the corner flowt value for preserving this acceleration and deceleration process finish time simultaneously calculate final work roll bending power
Offset
The corner flowt value of this acceleration and deceleration process finish time is preserved, is used for next acceleration and deceleration process；It will protect
The corner flowt value for the last acceleration and deceleration process finish time deposited is added to obtain with the bending roller force changing value of this acceleration and deceleration
Final work roll bending force compensating value；
S50, the bending roller force according to final work roll bending force compensating value control working roll.
Feedforward compensation enable signal is determined according to as-rolled condition, mill speed value and acceleration/deceleration signal in the step S10
The step of specifically include：
Check whether as-rolled condition and mill speed meet condition and determine that feedforward compensation enables letter according to acceleration/deceleration signal
Number
When as-rolled condition is normal, mill speed is more than minimum enabled velocity amplitude, cold-rolling mill is in acceleration mode or deceleration shape
During state, feedforward compensation enable signal is 1, represents enabled；Any of the above conditions are unsatisfactory for, then feedforward compensation enable signal is
0, expression does not enable.
The method of the step S30 is：
The roll-force benchmark that this acceleration and deceleration process is subtracted with roll-force actual value is worth to roll-force undulating value；Using rolling
Fluctuation value processed, feedforward compensation gain, roll-force bending roller force conversion factor product obtain the bending roller force changing value of this acceleration and deceleration.
The method that the corner flowt value of this acceleration and deceleration process finish time is preserved in the step S40 is：
There is that sampling instant of failing edge in feedforward compensation enable signal, the bending roller force for preserving lower that moment is mended
Repay value.
The present invention also provides a kind of bending roller force feed-forward compensation systems of cold-rolling mill, are controlled including measurement of rolling force device, PLC
Device, bowed roller hydraulic cylinder, working roll；
The measurement of rolling force device is used to measure roll-force actual value, and the value is transmitted to PLC controller；
The PLC controller is used to judge feedforward compensation enable signal, and calculate the roll-force base of this acceleration and deceleration process
Quasi- value, the bending roller force changing value of this acceleration and deceleration and final work roll bending force compensating value, this is according to the final working roll
Corner flowt value controls bowed roller hydraulic cylinder, and then controls the bending roller force of working roll；
The bowed roller hydraulic cylinder is used to receive the instruction of PLC controller, and then controls the bending roller force of working roll；
The working roll controls its bending roller force by bowed roller hydraulic cylinder.
The present invention also provides a kind of bending roller force feed-forward compensation system of cold-rolling mill, including：
Sampling module for acquiring the as-rolled condition of cold-rolling mill, mill speed and acceleration/deceleration signal, and above-mentioned data is passed
Pass PLC controller；
Enable signal judgment module, before being determined for as-rolled condition, mill speed and the acceleration/deceleration signal according to cold-rolling mill
Feedback compensation enable signal；
Roll-force a reference value computing module for constantly calculating the average value of roll-force whithin a period of time, is mended in feedforward
It repays enable signal and the sampling instant of rising edge occurs, preserve roll-force average value at this time, added and subtracted the average value as this
The roll-force a reference value of fast process；
Bending roller force changing value computing module, for being fluctuated using roll-force a reference value, the practical roll-force that is worth to of roll-force
Value is worth to the bending roller force changing value of this acceleration and deceleration according to roll-force fluctuation；
Work roll bending force compensating value computing module, for preserving the corner flowt of this acceleration and deceleration process finish time
Value is used for next acceleration and deceleration process；By the corner flowt value of the last acceleration and deceleration process finish time of preservation and this
The bending roller force changing value of secondary acceleration and deceleration is added to obtain final work roll bending force compensating value；
Execution module, for the bending roller force according to final work roll bending force compensating value control working roll.
The beneficial effects of the present invention are：Work roll bending power feedforward compensating function is automatically performed using PLC controller,
The milling train acceleration and deceleration stage calculates corresponding work roll bending force compensating amount according to the fluctuation situation of roll-force in real time, compared to traditional
Manual adjustment mode, automated manner precision is high, response is rapid, real-time is good, improves the automatization level of unit, improves and roll
The Strip Shape Control precision in machine acceleration and deceleration stage.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the invention will be further described, in attached drawing：
Fig. 1 is the structure diagram of the bending roller force feed-forward compensation system of cold-rolling mill of the present invention；
Fig. 2 is the flow diagram of the bending roller force feedforward compensation method of cold-rolling mill of the present invention；
Fig. 3 is the flow diagram of step S10 in Fig. 2；
Fig. 4 is the flow diagram of step S20 in Fig. 2；
Fig. 5 is the flow diagram of step S30 in Fig. 2；
Fig. 6 is the flow diagram of step S40 in Fig. 2.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
As shown in Figure 1, strip 3 is rolled between top working roll 2, bottom working roll 4, and work roll bending power is by both sides
What bowed roller hydraulic cylinder (left side bowed roller hydraulic cylinder 1, right side bowed roller hydraulic cylinder 5) provided, if bowed roller hydraulic cylinder (left side bowed roller hydraulic cylinder
1st, right side bowed roller hydraulic cylinder 5) it trails, working roll (top working roll 2, bottom working roll 4) edge is jacked up, close in the middle part of the body of roll,
Working roller bending has certain convexity, and such case is known as just curved；If bowed roller hydraulic cylinder (left side bowed roller hydraulic cylinder 1, right lateral bend
Roller hydraulic cylinder 5) then working roll (top working roll 2, bottom working roll 4) edge is drawn close for contraction, and the working roll body of roll is central raised reversely curved
Song, such case are known as negative curved.PLC controller 6 receives the roll-force actual value F that measurement of rolling force device is sentR,act, calculate
Corner flowt amount issues bowed roller hydraulic cylinder, and bowed roller hydraulic cylinder (left side bowed roller hydraulic cylinder 1, right side bowed roller hydraulic cylinder 5) is according to finger
It enables and performs bending roller force control, that is, complete the bending roller force Front feedback control process.The system can compensate milling train acceleration and deceleration rank
Section rolling fluctuation harmful effect caused by plate shape improves the Strip Shape Control precision in acceleration and deceleration stage.
The present invention also provides a kind of bending roller force feed-forward compensation system of cold-rolling mill, including：
Sampling module for acquiring the as-rolled condition of cold-rolling mill, mill speed and acceleration/deceleration signal, and above-mentioned data is passed
Pass PLC controller；
Enable signal judgment module, before being determined for as-rolled condition, mill speed and the acceleration/deceleration signal according to cold-rolling mill
Feedback compensation enable signal；
Roll-force a reference value computing module for constantly calculating the average value of roll-force whithin a period of time, is mended in feedforward
It repays enable signal and the sampling instant of rising edge occurs, preserve roll-force average value at this time, added and subtracted the average value as this
The roll-force a reference value of fast process；
Bending roller force changing value computing module, for being fluctuated using roll-force a reference value, the practical roll-force that is worth to of roll-force
Value is worth to the bending roller force changing value of this acceleration and deceleration according to roll-force fluctuation；
Work roll bending force compensating value computing module, for preserving the corner flowt of this acceleration and deceleration process finish time
Value is used for next acceleration and deceleration process；By the corner flowt value of the last acceleration and deceleration process finish time of preservation and this
The bending roller force changing value of secondary acceleration and deceleration is added to obtain final work roll bending force compensating value；
Execution module, for the bending roller force according to final work roll bending force compensating value control working roll.
Referring to Fig. 2, a kind of bending roller force feedforward compensation method of cold-rolling mill includes the following steps：
S00, as-rolled condition, mill speed and the acceleration/deceleration signal for acquiring cold-rolling mill, and above-mentioned data transfer is controlled to PLC
Device processed；
S10, feedforward compensation enable signal is determined according to the as-rolled condition, mill speed and acceleration/deceleration signal of cold-rolling mill；
S20, the roll-force a reference value for calculating this acceleration and deceleration process；
The average value of roll-force whithin a period of time is constantly calculated, at the time of rising edge occurs in feedforward compensation enable signal
Roll-force average value at this time is preserved, and using the average value as the roll-force a reference value during this acceleration and deceleration；
S30, roll-force calculated with actual values work roll bending power variable quantity is utilized；
Using roll-force a reference value, roll-force is practical is worth to roll-force undulating value, this is worth to according to roll-force fluctuation
The bending roller force changing value of secondary acceleration and deceleration；
S40, the corner flowt value for preserving this acceleration and deceleration process finish time simultaneously calculate final work roll bending power
Offset；
The corner flowt value of this acceleration and deceleration process finish time is preserved, is used for next acceleration and deceleration process；It will protect
The corner flowt value for the last acceleration and deceleration process finish time deposited is added to obtain with the bending roller force changing value of this acceleration and deceleration
Final work roll bending force compensating value；
S50, the bending roller force according to final work roll bending force compensating value control working roll.
It is specifically included with reference to Fig. 3, step S10：
S101, checks whether as-rolled condition and mill speed meet condition；
Milling train rise vehicle, threading, whipping, creep, break down when can not be used work roll bending force compensating,
Only milling train is in normal as-rolled condition and could enable, it is therefore desirable to check whether the current state of milling train meets what is normally rolled
Every interlock condition；
The various process parameters of milling train play pendulum during low speed, such as tension and roll-force are all adjusted also in continuous
During section, therefore a minimum need to be set to enable velocity amplitude, etc. mill speeds can just enable corner flowt higher than the value,
Such as minimum makes Energy velocity take 60m/min in the present embodiment, in actual use can according to actual conditions [30m/min,
100m/min] in the range of value；
S102 determines feedforward compensation enable signal according to acceleration/deceleration signal；
The change of mill speed can cause various process parameters to change, such as the parameters such as roll-force, tension, roll gap are all
It can adjust therewith, so as to which larger fluctuation easily occurs for the plate shape value for causing acceleration and deceleration stage strip, speed stabilizing state lower plate shape is opposite
Preferably control, therefore this feedforward compensation method is only effective in the acceleration and deceleration stage；All meet when the terms and conditions in step S101
In the case of (being more than minimum in normal as-rolled condition and mill speed makes Energy velocity), and in acceleration mode or deceleration regime
Under, feedforward compensation enable signal (Boolean quantity) is 1, represents enabled；Any of the above-described condition is unsatisfactory for, then feedforward compensation makes
Energy signal is 0, and expression does not enable.Such as after certain accelerator, the acceleration and deceleration stage is not at, then feedforward compensation enables
Signal becomes 0 from 1.
It is specifically included with reference to Fig. 4, step S20：
S201 calculates the average value of roll-force actual value whithin a period of time
Roll-force is the very big amount of a fluctuation in rolling process, and may be included in measurement of rolling force channel
Random disturbances, therefore roll-force needs are averaging processing, to reduce the influence of random disturbances and avoid fluctuation too big；In this reality
It applies in example, constantly calculates average value of the roll-force within the 1s times, it in actual use can be according to actual conditions at [0.1s, 10s]
In the range of value；
S202, at the time of there is rising edge in feedforward compensation enable signal preserve under roll-force average value, as this plus
Roll-force a reference value in moderating process；
Feedforward compensation enable signal is detected, when that sampling instant for rising edge (changing to 1 from 0) occur, record
Lower roll-force average value is as the roll-force a reference value during this acceleration and deceleration.
It is specifically included with reference to Fig. 5, step S30：
S301 calculates the roll-force undulating value during this acceleration and deceleration
Based on the roll-force a reference value during this acceleration and deceleration, subtract roll-force benchmark with roll-force actual value and be worth to
Roll-force undulating value；I.e.：
ΔFR(i)=FR,act(i)-FR,base(i)
In formula, i represents the acceleration and deceleration number at current time during this coil of rolling, such as current time is in rolling
In 3rd accelerator of this coil, then i=3；ΔFRFor roll-force undulating value, FR,actIt it is one for roll-force actual value
Continually changing amount；FR,baseFor roll-force a reference value, remained unchanged during this acceleration and deceleration；
S302, according to roll-force undulating value evaluation work roll bending power changing value
The work roll bending power changing value being calculated as follows during this acceleration and deceleration：
ΔBWR(i)=Δ FR(i)×GFWD×CFW
In formula, Δ BWRFor the work roll bending power changing value in this acceleration and deceleration stage, GFWDFor feedforward compensation gain, according to
Field condition is chosen, and value range is between [0.01,1.0]；CFWFor roll-force bending roller force conversion factor, specific algorithm is：
In formula, FR,maxFor roll-force maximum value, BWR,maxFor maximum functional roll bending power.
It is specifically included with reference to Fig. 6, step S40：
S401 preserves the work roll bending force compensating value of this acceleration and deceleration finish time
There is that sampling instant of failing edge (i.e. enable signal becomes 0 from 1) in feedforward compensation enable signal, preserve
The corner flowt value at lower that moment is used for next acceleration and deceleration process；
S402, the corner flowt value and the bending roller force changing value of this acceleration and deceleration that the last time acceleration and deceleration process that adds up preserves
Obtain final work roll bending force compensating value；
It is calculated as follows final work roll bending force compensating value：
BWR(i)=BWR,last(i-1)+ΔBWR(i) in formula, BWR(i) work roll bending final for this acceleration and deceleration stage
Force compensating value, BWR,last(i-1) the corner flowt value preserved for last acceleration and deceleration process, should during this acceleration and deceleration
Value remains unchanged, if first time acceleration and deceleration, i=1, then BWR,last(0)=0.0；ΔBWR(i) it is this acceleration and deceleration stage
Work roll bending power changing value.
In this way, the work roll bending force compensating value during each acceleration and deceleration is to terminate to locate roller in upper primary acceleration and deceleration
Force compensating value is changed again on basis, and the speed stabilizing stage keeps former offset constant.Therefore all of one coil of rolling add
The work roll bending force compensating amount in decelerating phase is the amount of a consecutive variations, and step mutation will not occur.
During each acceleration and deceleration, the work roll bending force compensating value of calculating is attached to work roll bending power setting value
Up, bending roller force control is performed by bowed roller hydraulic cylinder, you can realize and rolling fluctuation is compensated using work roll bending power
Function, Strip Shape Control precision of the milling train during acceleration and deceleration can be effectively improved.
It should be understood that for those of ordinary skills, can be improved or converted according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (6)
1. a kind of bending roller force feedforward compensation method of cold-rolling mill, it is characterised in that include the following steps：
S00, as-rolled condition, mill speed and the acceleration/deceleration signal for acquiring cold-rolling mill, and above-mentioned data transfer is controlled to PLC
Device；
S10, feedforward compensation enable signal is determined according to the as-rolled condition, mill speed and acceleration/deceleration signal of cold-rolling mill；
S20, the average value of roll-force whithin a period of time is constantly calculated, the sampling of rising edge occurs in feedforward compensation enable signal
Moment preserves roll-force average value at this time, and using the roll-force average value as the roll-force benchmark of this acceleration and deceleration process
Value；
S30, using roll-force a reference value, roll-force is practical is worth to roll-force undulating value, this is worth to according to roll-force fluctuation
The bending roller force changing value of secondary acceleration and deceleration；
S40, the corner flowt value for preserving this acceleration and deceleration process finish time are used for next acceleration and deceleration process；It will protect
The corner flowt value for the last acceleration and deceleration process finish time deposited is added to obtain with the bending roller force changing value of this acceleration and deceleration
Final work roll bending force compensating value；
S50, the bending roller force according to final work roll bending force compensating value control working roll.
2. the bending roller force feedforward compensation method of cold-rolling mill according to claim 1, it is characterised in that：The step S10's
Method is：
When as-rolled condition is normal, mill speed is more than minimum enabled velocity amplitude, cold-rolling mill is in acceleration mode or deceleration regime,
Feedforward compensation enable signal is 1, represents enabled；Any of the above conditions are unsatisfactory for, then feedforward compensation enable signal is 0, table
Show and do not enable.
3. the bending roller force feedforward compensation method of cold-rolling mill according to claim 1, it is characterised in that：The step S30's
Method is：
The roll-force benchmark that this acceleration and deceleration process is subtracted with roll-force actual value is worth to roll-force undulating value；Utilize roll-force
Undulating value, feedforward compensation gain, roll-force bending roller force conversion factor product obtain the bending roller force changing value of this acceleration and deceleration；
The calculation formula of the bending roller force changing value of this acceleration and deceleration is：ΔBWR(i)=Δ FR(i)×GFWD×CFW
In formula, i represents the acceleration and deceleration number at current time during this coil of rolling, Δ BWRWork for this acceleration and deceleration stage
Roll bending power changing value, Δ FRFor roll-force undulating value；GFWDIt for feedforward compensation gain, chooses according to field condition, value range
Between [0.01,1.0]；CFWFor roll-force bending roller force conversion factor, specific algorithm is：
In formula, FR,maxFor roll-force maximum value, BWR,maxFor maximum functional roll bending power.
4. the bending roller force feedforward compensation method of cold-rolling mill according to claim 1, it is characterised in that：In the step S40
The method for preserving the corner flowt value of this acceleration and deceleration process finish time is：
There is that sampling instant of failing edge in feedforward compensation enable signal, preserve the corner flowt at lower that moment
Value.
5. the system that the bending roller force feedforward compensation method of any cold-rolling mill uses in a kind of claim 1-4, feature
It is：Including
The value for measuring roll-force actual value, and is transmitted to PLC controller by measurement of rolling force device；
PLC controller for judging feedforward compensation enable signal, and calculates the roll-force a reference value of this acceleration and deceleration process, sheet
The bending roller force changing value of secondary acceleration and deceleration and final work roll bending force compensating value, this is according to the final work roll bending power
Offset controls bowed roller hydraulic cylinder, and then controls the bending roller force of working roll；
Bowed roller hydraulic cylinder for receiving the instruction of PLC controller, and then controls the bending roller force of working roll；
Working roll controls the bending roller force of working roll by bowed roller hydraulic cylinder.
6. a kind of bending roller force feed-forward compensation system of cold-rolling mill, it is characterised in that including：
Sampling module for acquiring the as-rolled condition of cold-rolling mill, mill speed and acceleration/deceleration signal, and above-mentioned data transfer is given
PLC controller；
Enable signal judgment module determines that feedforward is mended for as-rolled condition, mill speed and the acceleration/deceleration signal according to cold-rolling mill
Repay enable signal；
Roll-force a reference value computing module for constantly calculating the average value of roll-force whithin a period of time, makes in feedforward compensation
There is the sampling instant of rising edge in energy signal, roll-force average value at this time is preserved, using the average value as this acceleration and deceleration
The roll-force a reference value of journey；
Bending roller force changing value computing module, for using roll-force a reference value, roll-force is practical is worth to roll-force undulating value, root
The bending roller force changing value of this acceleration and deceleration is worth to according to roll-force fluctuation；
Work roll bending force compensating value computing module, for preserving the corner flowt value of this acceleration and deceleration process finish time,
It is used for next acceleration and deceleration process；The corner flowt value of the last acceleration and deceleration process finish time of preservation is added with this
The bending roller force changing value of deceleration is added to obtain final work roll bending force compensating value；
Execution module, for the bending roller force according to final work roll bending force compensating value control working roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180077.7A CN106734243B (en) | 2016-12-19 | 2016-12-19 | The bending roller force feedforward compensation method and compensation system of a kind of cold-rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611180077.7A CN106734243B (en) | 2016-12-19 | 2016-12-19 | The bending roller force feedforward compensation method and compensation system of a kind of cold-rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106734243A CN106734243A (en) | 2017-05-31 |
| CN106734243B true CN106734243B (en) | 2018-06-08 |
Family
ID=58890690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611180077.7A Active CN106734243B (en) | 2016-12-19 | 2016-12-19 | The bending roller force feedforward compensation method and compensation system of a kind of cold-rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106734243B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107685075A (en) * | 2017-07-10 | 2018-02-13 | 首钢京唐钢铁联合有限责任公司 | The method occurred applied to planisher prevention shape wave |
| CN108405630B (en) * | 2018-02-27 | 2019-07-02 | 首钢京唐钢铁联合有限责任公司 | A kind of control method and device of belt plate shape |
| CN112974546A (en) * | 2021-03-05 | 2021-06-18 | 北京首钢自动化信息技术有限公司 | Control method for automatically adjusting roll bending force through welding line of finishing machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3620058A (en) * | 1967-12-04 | 1971-11-16 | British Iron Steel Research | Hot or cold rolling of strip or plate |
| JPS62244513A (en) * | 1986-04-16 | 1987-10-24 | Nippon Kokan Kk <Nkk> | Control method for plate thickness in continuous rolling mill |
| US5347837A (en) * | 1990-04-12 | 1994-09-20 | International Rolling Mill Consultants, Inc. | Method of rolling using bendable sleeved roll |
| DE19962754A1 (en) * | 1999-08-06 | 2001-02-15 | Muhr & Bender Kg | Process for flexibly rolling a metal strip comprises carrying out a compensation of the temperature influence effecting the metal strip during rolling to avoid deviations |
| CN202606511U (en) * | 2012-04-23 | 2012-12-19 | 中冶南方工程技术有限公司 | Cold rolled steel plate shape feedforward-feedback cooperative control system |
| CN103978044A (en) * | 2014-05-30 | 2014-08-13 | 中冶南方工程技术有限公司 | Method and device for controlling roll clearance compensation in decelerating and accelerating stages of rolling mill |
| CN104550261A (en) * | 2015-01-22 | 2015-04-29 | 首钢总公司 | Temper mill working roller bending force adjusting method and device |
-
2016
- 2016-12-19 CN CN201611180077.7A patent/CN106734243B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3620058A (en) * | 1967-12-04 | 1971-11-16 | British Iron Steel Research | Hot or cold rolling of strip or plate |
| JPS62244513A (en) * | 1986-04-16 | 1987-10-24 | Nippon Kokan Kk <Nkk> | Control method for plate thickness in continuous rolling mill |
| US5347837A (en) * | 1990-04-12 | 1994-09-20 | International Rolling Mill Consultants, Inc. | Method of rolling using bendable sleeved roll |
| DE19962754A1 (en) * | 1999-08-06 | 2001-02-15 | Muhr & Bender Kg | Process for flexibly rolling a metal strip comprises carrying out a compensation of the temperature influence effecting the metal strip during rolling to avoid deviations |
| CN202606511U (en) * | 2012-04-23 | 2012-12-19 | 中冶南方工程技术有限公司 | Cold rolled steel plate shape feedforward-feedback cooperative control system |
| CN103978044A (en) * | 2014-05-30 | 2014-08-13 | 中冶南方工程技术有限公司 | Method and device for controlling roll clearance compensation in decelerating and accelerating stages of rolling mill |
| CN104550261A (en) * | 2015-01-22 | 2015-04-29 | 首钢总公司 | Temper mill working roller bending force adjusting method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106734243A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103920720B (en) | A kind of strip tension dynamic control method based on cover amount deviation and control system thereof | |
| CN106734243B (en) | The bending roller force feedforward compensation method and compensation system of a kind of cold-rolling mill | |
| CN101780480B (en) | Thickness control compensation method of strip steel head part when welding line passes through rack | |
| CN101618402B (en) | Method for controlling planeness of cold-rolling strip steel | |
| CN103934278B (en) | A kind of hot fine rolling band steel method for controlling thickness | |
| CN102179412B (en) | Control method of speed and acceleration of continuous hot rolling roughing rolling unit | |
| CN107908836A (en) | A kind of rolling parameter optimization method and device | |
| CN104907341B (en) | A kind of control method of thin plate Hot Line mm finishing mill unit AGC system | |
| US20210031252A1 (en) | Steel strip coiling temperature control method, device for the same and steel strip processing system | |
| CN105251778B (en) | Feedback control method for edge drop of taper work roll shifting mill (T-WRS) | |
| CN103962392A (en) | Dynamic load control method for hot continuous finishing mill group | |
| CN104668294A (en) | Dynamic constant thickness ratio taper control method | |
| CN110479760A (en) | Disconnected band is prevented when cold continuous rolling dynamic variable specification steel band and loses the roll gap compensation method opened | |
| CN102274863B (en) | Automatic plate thickness control method of single-stand rolling mill with PI parameter limitation | |
| CN104338753B (en) | A kind of dynamic variable specification control method of cold continuous rolling | |
| CN104324951A (en) | Method for setting and controlling starting rolling force of single rack | |
| CN103203376B (en) | Accuracy control method for pressure of cold-rolling strip steel emulsion system | |
| CN104772337A (en) | Method for controlling torque loop quantity of hot continuous rolling mill | |
| CN104307884B (en) | Hot continuous rolling silicon steel afterbody kink conforms to a conventional pattern control method | |
| CN106607460A (en) | Sendzimir 20 rolling mill edge plate shape controlling method and device | |
| CN103978044B (en) | The roll gap compensating control method in milling train acceleration and deceleration stage and device thereof | |
| CN106475422B (en) | High order board-shape control method | |
| CN110508623B (en) | Control method for inhibiting oscillation of finishing elongation rate | |
| CN107127217A (en) | Cold rolled silicon steel edge thinning feeds back hysteretic control approach | |
| US10780474B2 (en) | Robust band tension control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |