CN107008759B - A kind of milling train group correction control method and device - Google Patents
A kind of milling train group correction control method and device Download PDFInfo
- Publication number
- CN107008759B CN107008759B CN201710194926.2A CN201710194926A CN107008759B CN 107008759 B CN107008759 B CN 107008759B CN 201710194926 A CN201710194926 A CN 201710194926A CN 107008759 B CN107008759 B CN 107008759B
- Authority
- CN
- China
- Prior art keywords
- roll mill
- flat roll
- strip
- milling train
- deviation
- 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
- B21B37/28—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The present invention relates to rougher of hot strip mill technical fields, more particularly to a kind of milling train group correction control method and device, method includes: for the first milling train group comprising the first vertical miller and the first flat roll mill, during back and forth roll to strip using the first milling train group: when odd-times rolling pass: according to the variation of the rolling force deviation of the first flat roll mill, it obtains the first compensative level value and the roll gap of the first flat roll mill is adjusted, and it obtains the first correction offset and the center line of the first vertical miller is adjusted, according to the variation of the rolling force deviation of the first vertical miller, it obtains the second compensative level value and the roll gap of the first flat roll mill is adjusted；When even-times rolling pass: according to the variation of the rolling force deviation of the first flat roll mill, obtaining third compensative level value and be adjusted to the roll gap of the first flat roll mill.The present invention, which is realized, carries out the correction of staggered form solid to strip from vertical and horizontal, improves the accuracy of correction.
Description
Technical field
The present invention relates to rougher of hot strip mill technical field more particularly to a kind of milling train group correction control method and device.
Background technique
In traditional rougher of hot strip mill area, the camber bias adjustment of intermediate base is difficult, and intermediate base plate form control is always
It is all the core difficult point of rougher of hot strip mill unit allocation.In traditional handicraft, the regulative mode of intermediate base mainly relies on operator
The form variations of member's artificial observation strip, then rectify a deviation, low using the regulative mode accuracy, flexibility is poor, it is difficult to reach
It is expected that template effect, causes to seriously affect to the stable rolling of downstream mm finishing mill unit.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State the milling train group correction control method and device of problem.
The embodiment of the present invention provides a kind of milling train group correction control method, which comprises
For the first milling train group comprising the first vertical miller and the first flat roll mill, described first is sequentially being utilized
Vertical miller and first flat roll mill carry out during back and forth rolling strip:
When the rolling pass of the first milling train group is odd number:
According to the variation of the rolling force deviation of first flat roll mill, the roll gap phase with first flat roll mill is obtained
Corresponding first compensative level value and the first correction offset corresponding with the center line of first vertical miller, and,
According to the variation of the rolling force deviation of first vertical miller, corresponding with the roll gap of first flat roll mill the is obtained
Two compensative level values；
Using the first compensative level value and the second compensative level value to the roll gap of first flat roll mill into
Row adjustment, and, the center line of first vertical miller is adjusted using the first correction offset；
When the rolling pass of the first milling train group is even number:
According to the variation of the rolling force deviation of first flat roll mill, the roll gap phase with first flat roll mill is obtained
Corresponding third compensative level value；
It is adjusted using roll gap of the third compensative level value to first flat roll mill.
Preferably, when rolling pass is even number, the method also includes:
The position for tracking the strip, after the head of the strip passes through first vertical miller, by described first
The roll gap of vertical miller is adjusted to same wide with the strip.
Preferably, when being provided with the second milling train group before the first milling train group, the method also includes:
Terminate when the second milling train group rolls the strip, and the strip is sent to the first milling train group and carries out the
Before the rolling of a time, the width and centerline deviation of the strip are sampled, the width data of the strip is obtained
With centerline deviation data；
The roll gap of first flat roll mill is adjusted using the width data and the centerline deviation data.
Preferably, the method also includes:
When first flat roll mill carries out the rolling of last a time to the strip, rolled according to first plain-barreled roll
The variation of the centerline deviation of machine obtains the second correction offset corresponding with the center line of first vertical miller；
The center line of first vertical miller is adjusted according to the second correction offset.
Preferably, the variation of the rolling force deviation of first flat roll mill is the real-time rolling of first flat roll mill
Difference between power deviation and the rolling force deviation a reference value of first flat roll mill, the roll-force of first flat roll mill
Deviation a reference value is that the head of the strip bites the rolling of delay the first preset time acquisition after first flat roll mill
Power deviation.
Preferably, the variation of the centerline deviation of first flat roll mill is the real-time center of first flat roll mill
Difference between line deviation and the centerline deviation a reference value of first flat roll mill, the center line of first flat roll mill
Deviation a reference value is that the head of the strip bites the center of delay the second preset time acquisition after first flat roll mill
Line deviation.
Preferably, it is described using the width data and the centerline deviation data to the roller of first flat roll mill
Seam is adjusted, comprising:
According to the width data and the centerline deviation data, centerline deviation contour curve is simulated；
According to the profile slope of the centerline deviation contour curve, obtain opposite with the roll gap of first flat roll mill
The 4th compensative level value answered.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of milling train group correcting controller, be applied to comprising
In first milling train group of the first vertical miller and the first flat roll mill, and, apply sequentially utilize first vertical miller and
First flat roll mill carries out during back and forth rolling strip, and described device includes:
First correction module, for when the rolling pass of the first milling train group is odd number:
According to the variation of the rolling force deviation of first flat roll mill, the roll gap phase with first flat roll mill is obtained
Corresponding first compensative level value and the first correction offset corresponding with the center line of first vertical miller, and,
According to the variation of the rolling force deviation of first vertical miller, corresponding with the roll gap of first flat roll mill the is obtained
Two compensative level values；
Using the first compensative level value and the second compensative level value to the roll gap of first flat roll mill into
Row adjustment, and, the center line of first vertical miller is adjusted using the first correction offset；
Second correction module, for when the rolling pass of the first milling train group is even number:
According to the variation of the rolling force deviation of first flat roll mill, the roll gap phase with first flat roll mill is obtained
Corresponding third compensative level value；
It is adjusted using roll gap of the third compensative level value to first flat roll mill.
Preferably, when rolling pass is even number, described device further include:
Third correction module, for tracking the position of the strip, when the head of the strip passes through first edger roll
After milling train, the roll gap of first vertical miller is adjusted to same wide with the strip.
Preferably, when being provided with the second milling train group before the first milling train group, described device further include:
4th correction module, for terminating when the second milling train group rolls the strip, and the strip is sent to institute
Before stating the rolling that the first milling train group carries out the first passage, the width and centerline deviation of the strip are sampled, obtained
The width data and centerline deviation data of the strip；
The roll gap of first flat roll mill is adjusted using the width data and the centerline deviation data.
One or more technical solutions in the embodiment of the present invention, have at least the following technical effects or advantages:
The present invention is by the way that the rolling pass comprising the first flat roll mill and the first milling train group of the first vertical miller to be divided into
Odd-times and even-times, according to the variation of the rolling force deviation of first flat roll mill, are obtained when rolling pass is odd number
The first compensative level value corresponding with the roll gap of first flat roll mill and the center line phase with first vertical miller
Corresponding first correction offset, and, according to the variation of the rolling force deviation of first vertical miller, obtain and described the
The corresponding second compensative level value of the roll gap of one flat roll mill is mended using the first compensative level value and second leveling
Value is repaid to be adjusted the roll gap of first flat roll mill, and, it is vertical to described first using the first correction offset
The center line of roller mill is adjusted；When rolling pass is even number, according to the rolling force deviation of first flat roll mill
Variation obtains third compensative level value corresponding with the roll gap of first flat roll mill, utilizes the third compensative level
Value is adjusted the roll gap of first flat roll mill, realizes and intersects from vertical and horizontal both direction to strip
The correction of formula solid, improves the accuracy of correction, flexible correction improves the template of strip, provides surely for downstream mm finishing mill unit
The strip of fixed, good template.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, identical component is indicated with identical reference pattern.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the first milling train group in the embodiment of the present invention；
Fig. 2 shows the flow charts of one of embodiment of the present invention milling train group correction control method；
Fig. 3 shows the signal of relative positional relationship between the first milling train group and the second milling train group in the embodiment of the present invention
Figure；
Fig. 4 shows the structural schematic diagram of one of embodiment of the present invention milling train group correcting controller.
Wherein, R1 is the first flat roll mill, and E1 is the first vertical miller, and R2 is the second flat roll mill, and E2 is the second edger roll
Milling train.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
The embodiment of the present invention provides a kind of milling train group correction control method, is applied to include the first vertical miller E1 and first
In the first milling train group of flat roll mill R1, the structure of the first milling train group as shown in Figure 1, the method as shown in Fig. 2, the method
Include:
During sequentially back and forth roll to strip using the first vertical miller E1 and the first flat roll mill R1:
When the rolling pass of the first milling train group is odd number:
According to the variation of the rolling force deviation of the first flat roll mill R1, obtain corresponding with the roll gap of the first flat roll mill R1
The first compensative level value and the first correction offset corresponding with the center line of the first vertical miller E1, and, according to the
The variation of the rolling force deviation of one vertical miller E1 obtains the second compensative level corresponding with the roll gap of the first flat roll mill R1
Value；
The roll gap of the first flat roll mill R1 is carried out using the first compensative level value and the second compensative level value
Adjustment, and, the center line of the first vertical miller E1 is adjusted using the first correction offset；
When the rolling pass of the first milling train group is even number:
According to the variation of the rolling force deviation of the first flat roll mill R1, obtain corresponding with the roll gap of the first flat roll mill R1
Third compensative level value；
It is adjusted using roll gap of the third compensative level value to the first flat roll mill R1.
During back and forth roll to strip using the first milling train group, strip first passes through the first edger roll and rolls the application
By the first flat roll mill R1 after machine E1, wherein successively each to strip using the first vertical miller E1 and the first flat roll mill R1
Carrying out primary rolling is a rolling pass, and rolling pass is divided into odd-numbered pass and even-numbered pass, for example, when utilizing the first milling train
When group carries out the rolling of 3 rolling passes to strip, the rolling of the first passage are as follows: successively utilize the first vertical miller E1 and first
Flat roll mill R1 rolls strip, the rolling of the second passage are as follows: after the rolling of the first passage, strip retracts first
Flat roll mill R1, and successively strip is rolled using the first flat roll mill R1 and the first vertical miller E1, third passage
Rolling are as follows: after the rolling of the second passage, strip retracts the first vertical miller E1, and successively utilizes the first vertical miller E1
Strip is rolled with the first flat roll mill R1, wherein the rolling of the first passage and third passage belongs to odd-times rolling road
Secondary, the rolling of the second passage belongs to even-times rolling pass.
Below by respectively to rolling pass be odd and even number when milling train group rectify a deviation control method specific implementation process into
Row is described in detail.
In the operation of rolling that the first milling train group carries out odd-numbered pass, according to the rolling force deviation of the first flat roll mill R1
Variation obtains the first compensative level value corresponding with the roll gap of the first flat roll mill R1, meanwhile, according to the first vertical miller E1
Rolling force deviation variation, obtain corresponding with the roll gap of the first flat roll mill R1 the second compensative level value, first levels
Offset and the second compensative level value are used to adjust the roll gap of the first flat roll mill R1, meanwhile, according to the first flat roll mill R1's
The variation of rolling force deviation obtains the first correction offset corresponding with the center line of the first vertical miller E1, the first correction
Offset is used to adjust the center line of the first vertical miller E1.
In this application, either for the first flat roll mill R1 or the first vertical miller E1, the rolling of milling train
The variation of power deviation is the difference between the real-time rolling force deviation of milling train and the rolling force deviation a reference value of milling train, wherein is rolled
Difference of the power deviation processed between the current roll-force of milling train and preset work roll power, further, rolling force deviation a reference value
The rolling force deviation of be delayed preset time acquisition is bitten after milling train for the head of strip.For example, when milling train is in normal work
In the case of preset work roll power be Fw, load of the strip as milling train, after rolling mill strip carries, the head of strip bites milling train
Later, when and rolling is stablized, be delayed the first preset time, and the roll-force for obtaining milling train is Fr, according to FrAnd FwMilling train can be obtained
Rolling force deviation a reference value FTGT, FTGT=Fr-Fw, then, obtaining FTGTLater, F is lockedTGT, and obtained in real time in following instant
Obtain the rolling force F of milling trainn, according to FwAnd FnThe real-time rolling force deviation F of milling train can be obtainedDiff, FDiff=Fn-Fw, finally, root
According to FDiffAnd FTGTThe variation of the rolling force deviation of milling train can be obtained, the variation of the rolling force deviation of milling train is FTGTAnd FDiffIt
Between difference.
Wherein, it in the operation of rolling of odd-numbered pass, according to the variation of the rolling force deviation of the first flat roll mill R1, obtains
With the first compensative level value of the roll gap of the first flat roll mill R1, specific implementation process is as follows:
After obtaining the variation of rolling force deviation of the first flat roll mill R1, is obtained according to formula one and rolled with the first plain-barreled roll
The corresponding first compensative level value of the roll gap of machine R1, wherein the first compensative level value can be calculated by the first controller:
S1RFor the first compensative level value, Gain1For the gain coefficient of the first controller, FTGTRFor the first flat roll mill R1's
Rolling force deviation a reference value, FDiffRFor the real-time rolling force deviation of the first flat roll mill R1, QSUPIt is set for the resistance of deformation of strip
Value.
Wherein, it in the operation of rolling of odd-numbered pass, according to the variation of the rolling force deviation of the first vertical miller E1, obtains
The second compensative level value corresponding with the roll gap of the first flat roll mill R1, specific implementation process are as follows:
After obtaining the variation of rolling deviation of the first vertical miller E1, obtained and the first flat roll mill according to formula two
The corresponding second compensative level value of the roll gap of R1, wherein the second compensative level value can be calculated by second controller:
S2RFor the second compensative level value, KGain2For second controller gain coefficient, FTGTEFor rolling for the first vertical miller E1
Power deviation a reference value processed, FDiffEFor the real-time rolling force deviation of the first vertical miller E1, QSUPIt is set for the resistance of deformation of strip
Value.
Wherein, it in the operation of rolling of odd-numbered pass, according to the variation of the rolling force deviation of the first flat roll mill R1, obtains
The first correction offset corresponding with the center line of the first vertical miller E1, specific implementation process are as follows:
After obtaining the variation of rolling force deviation of the first flat roll mill R1, is obtained according to formula three and rolled with the first edger roll
The corresponding first correction offset of the center line of machine E1, wherein the first correction offset can be calculated by third controller:
S1EFor the first correction offset, Gain3For third controller gain coefficient, FTGTRFor rolling for the first flat roll mill R1
Power deviation a reference value processed, FDiffRFor the real-time rolling force deviation of the first flat roll mill R1, QSUPIt is set for the resistance of deformation of strip
Value.
In the operation of rolling that the first milling train group carries out even-numbered pass, according to the rolling force deviation of the first flat roll mill R1
Variation obtains third compensative level value corresponding with the roll gap of the first flat roll mill R1, and third compensative level value is for adjusting
The roll gap of first flat roll mill R1.Wherein, the preparation method of the preparation method of third compensative level value and the first compensative level value
It is identical, above-mentioned formula one can be equally used, the difference of the two is obtained in different rolling passes, wherein first adjusts
Flat offset is to obtain in odd-times rolling pass, and the second compensative level value is obtained in even-times rolling pass
, therefore, details are not described herein again.
The present invention also provides a kind of preferred embodiments, in this preferred embodiment, when rolling pass is even number, institute
State method further include:
The first edger roll is rolled after the head of the strip passes through the first vertical miller E1 the position for tracking the strip
The roll gap of machine E1 is adjusted to same wide with the strip.
In the specific implementation process, it in the operation of rolling of even-numbered pass, executes roll gap and approaches function, that is, in strip
After head passes through the first vertical miller E1, according to strip throat width setting value SW_SETThe roll gap for controlling the first vertical miller E1 exists
Line is closed, with the default roll gap closed frequency and close the first vertical miller E1, until the roll gap and strip of the first vertical miller E1
With width, thus, horizontal looseness of the strip in milling train is constrained by the roll gap of the first vertical miller E1, strip is carried out with realizing
The purpose of correction.Further, in a kind of more preferably embodiment, default width can be provided the roll gap of the first vertical miller E1
Offset is spent, thus, strip width and predetermined width offset are summed, thus, the roll gap of the first vertical miller E1 is adjusted
It is identical to the summing value between strip width and predetermined width offset.Further, in order to improve safety, when the first edger roll rolls
The roll-force of machine E1 is greater than when presetting safe roll-force, and roll gap approaches function, and presetting safe roll-force can be 350KN.
The present invention also provides a kind of preferred embodiments, in this preferred embodiment, set when before the first milling train group
When being equipped with the second milling train group, the positional relationship between the first milling train group and the second milling train group is as shown in figure 3, the second milling train group includes
Second vertical miller E2 and the second flat roll mill R2, the second vertical miller E2 setting are before the second flat roll mill R2, the side
Method further include:
Terminate when the second milling train group rolls the strip, and the strip is sent to the first milling train group, it is described
Before first milling train group carries out the rolling of the first passage to the strip, the width and centerline deviation of the strip are adopted
Sample obtains the width data and centerline deviation data of the strip；
The roll gap of the first flat roll mill R1 is adjusted using the width data and the centerline deviation data.
In the specific implementation process, the application provides feedforward correction compensation function, that is, when the second milling train group rolled band steel knot
Beam, and strip is sent to before the rolling that the first milling train group carries out the first passage, the measurement for rolling machine set outlet width gage to second
Data carry out real-time sampling, the width data and centerline deviation data of strip are obtained, then, according to width data and center line
Deviation data simulates centerline deviation contour curve using linear return two times, can specifically be obtained using following formula four,
And it is calculated using the 4th controller:
K is the profile slope of center line deviation contour curve, WMAXFor the maximum sampled value in the line deviation data of center, WMIN
For the minimum sampled value in the line deviation data of center, LMAXFor with WMAXThe width sampled value of corresponding strip, LMINFor with WMINIt is right
The width sampled value for the strip answered, GGain4For the gain coefficient of the 4th controller.
After the profile slope for obtaining centerline deviation contour curve, when first of sub-band of the first flat roll mill R1 carries
When, track the width L of strip steel headHead_Trk, according to LHead_TrkAnd K, it obtains corresponding with the roll gap of the first flat roll mill R1
4th compensative level value can specifically be obtained using following formula five, and be calculated using controller.
SR4=K × L2 Head_Trk
SR4For the 4th compensative level value, K is the profile slope of center line deviation contour curve, LHead_TrkFor strip steel head
Width.
The present invention also provides a kind of preferred embodiments, in this preferred embodiment, the method also includes:
When the first flat roll mill R1 carries out the rolling of last a time to the strip, according to the first flat roll mill R1's
The variation of centerline deviation obtains the second correction offset corresponding with the center line of the first vertical miller E1；
The center line of the first vertical miller E1 is adjusted according to the second correction offset.
In this application, the variation of the centerline deviation of the first flat roll mill R1 is the real-time center of the first flat roll mill R1
Difference between line deviation and the centerline deviation a reference value of the first flat roll mill R1, specifically, the first flat roll mill R1 exist
During last passes, the width gage in the first exit flat roll mill R1 is tracked, when strip steel head is stablized by surveying width
After instrument, be delayed the second preset time, obtains centerline deviation a reference value WCL_TGT, WCL_TGTIt is sampled for the second preset time of delay
Center line position and initial time position of center line between difference, further, obtain WCL_TGTLater, it locks
WCL_TGT, and the real-time center line deviation W of the first flat roll mill R1 is obtained in real time in following instantCL_Diff, further, utilize with
Lower formula five obtains the second correction offset, and is calculated using the 5th controller:
S2E=KGain5×(WCL_Diff-WCL_TGT) formula five
S2EFor the second correction offset, KGain5For the 5th controller gain coefficient, WCL_DiffFor real-time center line deviation,
WCL_TGTFor center line deviation a reference value.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of milling train group correcting controller, be applied to comprising
In the first milling train group of first vertical miller E1 and the first flat roll mill R1, and, it applies and is sequentially utilizing the first vertical miller E1
Strip is carried out during back and forth rolling with the first flat roll mill R1, as shown in figure 4, described device includes:
First correction module, for when the rolling pass of the first milling train group is odd number:
According to the variation of the rolling force deviation of the first flat roll mill R1, obtain corresponding with the roll gap of the first flat roll mill R1
The first compensative level value and the first correction offset corresponding with the center line of the first vertical miller E1, and, according to the
The variation of the rolling force deviation of one vertical miller E1 obtains the second compensative level corresponding with the roll gap of the first flat roll mill R1
Value；
The roll gap of the first flat roll mill R1 is carried out using the first compensative level value and the second compensative level value
Adjustment, and, the center line of the first vertical miller E1 is adjusted using the first correction offset；
Second correction module, for when the rolling pass of the first milling train group is even number:
According to the variation of the rolling force deviation of the first flat roll mill R1, obtain corresponding with the roll gap of the first flat roll mill R1
Third compensative level value；
It is adjusted using roll gap of the third compensative level value to the first flat roll mill R1.
Preferably, when rolling pass is even number, described device further include:
Third correction module, for tracking the position of the strip, when the head of the strip passes through the first vertical miller
After E1, the roll gap of the first vertical miller E1 is adjusted to same wide with the strip.
Preferably, when being provided with the second milling train group before the first milling train group, described device further include:
4th correction module, for terminating when the second milling train group rolls the strip, and the strip is sent to institute
Before stating the rolling that the first milling train group carries out the first passage, the width and centerline deviation of the strip are sampled, obtained
The width data and centerline deviation data of the strip；
The roll gap of the first flat roll mill R1 is adjusted using the width data and the centerline deviation data.
Technical solution in above-mentioned the embodiment of the present application, at least have the following technical effects or advantages:
The present invention is by the way that the rolling pass comprising the first flat roll mill and the first milling train group of the first vertical miller to be divided into
Odd-times and even-times, according to the variation of the rolling force deviation of first flat roll mill, are obtained when rolling pass is odd number
The first compensative level value corresponding with the roll gap of first flat roll mill and the center line phase with first vertical miller
Corresponding first correction offset, and, according to the variation of the rolling force deviation of first vertical miller, obtain and described the
The corresponding second compensative level value of the roll gap of one flat roll mill is mended using the first compensative level value and second leveling
Value is repaid to be adjusted the roll gap of first flat roll mill, and, it is vertical to described first using the first correction offset
The center line of roller mill is adjusted；When rolling pass is even number, according to the rolling force deviation of first flat roll mill
Variation obtains third compensative level value corresponding with the roll gap of first flat roll mill, utilizes the third compensative level
Value is adjusted the roll gap of first flat roll mill, realizes and carries out solid to strip from vertical and horizontal both direction
Correction, improves the accuracy of correction, and flexible correction improves the template of strip, provides for downstream mm finishing mill unit and stablizes, is good
The strip of template.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
- The control method 1. a kind of milling train group is rectified a deviation, which is characterized in that the described method includes:For the first milling train group comprising the first vertical miller and the first flat roll mill, first edger roll is sequentially being utilized Milling train and first flat roll mill carry out during back and forth rolling strip:When the rolling pass of the first milling train group is odd number:According to the variation of the rolling force deviation of first flat roll mill, obtain corresponding with the roll gap of first flat roll mill The first compensative level value and it is corresponding with the center line of first vertical miller first correction offset, and, according to The variation of the rolling force deviation of first vertical miller obtains corresponding with the roll gap of first flat roll mill second and adjusts Flat offset；The roll gap of first flat roll mill is adjusted using the first compensative level value and the second compensative level value It is whole, and, the center line of first vertical miller is adjusted using the first correction offset；When the rolling pass of the first milling train group is even number:According to the variation of the rolling force deviation of first flat roll mill, obtain corresponding with the roll gap of first flat roll mill Third compensative level value；It is adjusted using roll gap of the third compensative level value to first flat roll mill.
- 2. the method as described in claim 1, which is characterized in that when rolling pass is even number, the method also includes:The position for tracking the strip, after the head of the strip passes through first vertical miller, by first edger roll The roll gap of milling train is adjusted to same wide with the strip.
- 3. the method as described in claim 1, which is characterized in that when being provided with the second milling train group before the first milling train group When, the method also includes:Terminate when the second milling train group rolls the strip, and the strip is sent to the first milling train group and carries out first Before secondary rolling, the width and centerline deviation of the strip are sampled, obtain the width data of the strip in Heart line deviation data；The roll gap of first flat roll mill is adjusted using the width data and the centerline deviation data.
- 4. the method as described in claim 1, which is characterized in that the method also includes:When first flat roll mill carries out the rolling of last a time to the strip, according to first flat roll mill The variation of centerline deviation obtains the second correction offset corresponding with the center line of first vertical miller；The center line of first vertical miller is adjusted according to the second correction offset.
- 5. the method as described in claim 1, which is characterized in that the variation of the rolling force deviation of first flat roll mill is institute The difference between the real-time rolling force deviation of the first flat roll mill and the rolling force deviation a reference value of first flat roll mill is stated, The rolling force deviation a reference value of first flat roll mill is to prolong after the head of the strip bites first flat roll mill When the first preset time obtain rolling force deviation.
- 6. method as claimed in claim 4, which is characterized in that the variation of the centerline deviation of first flat roll mill is institute The difference between the real-time center line deviation of the first flat roll mill and the centerline deviation a reference value of first flat roll mill is stated, The centerline deviation a reference value of first flat roll mill is to prolong after the head of the strip bites first flat roll mill When the second preset time obtain centerline deviation.
- 7. method as claimed in claim 3, which is characterized in that described to utilize the width data and the centerline deviation number It is adjusted according to the roll gap to first flat roll mill, comprising:According to the width data and the centerline deviation data, centerline deviation contour curve is simulated；According to the profile slope of the centerline deviation contour curve, obtain corresponding with the roll gap of first flat roll mill 4th compensative level value.
- 8. a kind of milling train group correcting controller, which is characterized in that be applied to include the first vertical miller and the first flat roll mill The first milling train group in, and, apply and sequentially strip carried out using first vertical miller and first flat roll mill During reciprocal rolling, described device includes:First correction module, for when the rolling pass of the first milling train group is odd number:According to the variation of the rolling force deviation of first flat roll mill, obtain corresponding with the roll gap of first flat roll mill The first compensative level value and it is corresponding with the center line of first vertical miller first correction offset, and, according to The variation of the rolling force deviation of first vertical miller obtains corresponding with the roll gap of first flat roll mill second and adjusts Flat offset；The roll gap of first flat roll mill is adjusted using the first compensative level value and the second compensative level value It is whole, and, the center line of first vertical miller is adjusted using the first correction offset；Second correction module, for when the rolling pass of the first milling train group is even number:According to the variation of the rolling force deviation of first flat roll mill, obtain corresponding with the roll gap of first flat roll mill Third compensative level value；It is adjusted using roll gap of the third compensative level value to first flat roll mill.
- 9. device as claimed in claim 8, which is characterized in that when rolling pass is even number, described device further include:Third correction module, for tracking the position of the strip, when the head of the strip passes through first vertical miller Afterwards, the roll gap of first vertical miller is adjusted to same wide with the strip.
- 10. device as claimed in claim 8, which is characterized in that when being provided with the second milling train before the first milling train group When group, described device further include:4th correction module, for terminating when the second milling train group rolls the strip, and the strip is sent to described the Before one milling train group carries out the rolling of the first passage, the width and centerline deviation of the strip are sampled, described in acquisition The width data and centerline deviation data of strip；The roll gap of first flat roll mill is adjusted using the width data and the centerline deviation data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194926.2A CN107008759B (en) | 2017-03-29 | 2017-03-29 | A kind of milling train group correction control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194926.2A CN107008759B (en) | 2017-03-29 | 2017-03-29 | A kind of milling train group correction control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107008759A CN107008759A (en) | 2017-08-04 |
| CN107008759B true CN107008759B (en) | 2019-03-12 |
Family
ID=59445598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710194926.2A Active CN107008759B (en) | 2017-03-29 | 2017-03-29 | A kind of milling train group correction control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107008759B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139259B (en) * | 2019-06-28 | 2022-10-21 | 宝山钢铁股份有限公司 | Automatic deviation rectifying control method for finish rolling strip steel |
| CN112872043B (en) * | 2021-01-08 | 2022-04-22 | 北京科技大学设计研究院有限公司 | Control method for preventing head of rolled piece from deviating in hot rolling process of single stand |
| CN113290064B (en) * | 2021-05-20 | 2023-09-19 | 马鞍山钢铁股份有限公司 | Method for reducing deviation and belt breakage of cold continuous rolling mill |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6120610A (en) * | 1984-07-06 | 1986-01-29 | Mitsubishi Electric Corp | Method for controlling sheet width in hot reversible rolling |
| JP3328566B2 (en) * | 1997-12-26 | 2002-09-24 | 川崎製鉄株式会社 | Method and apparatus for camber control of rolled material |
| CN102120224B (en) * | 2010-01-08 | 2012-10-10 | 宝山钢铁股份有限公司 | Control method of automatic deviation correction during rolling of hot continuous rolling mill |
| CN102451838B (en) * | 2010-10-27 | 2013-11-20 | 宝山钢铁股份有限公司 | Method for overcoming camber defect in hot rolling process of steel plate |
| CN102989784B (en) * | 2012-12-07 | 2014-10-29 | 北京金自天正智能控制股份有限公司 | Fixed-width press plate blank width control method |
| CN103920718B (en) * | 2013-01-15 | 2015-09-23 | 宝山钢铁股份有限公司 | A kind of rough rolling strip steel width control method |
| CN106055814A (en) * | 2016-06-08 | 2016-10-26 | 广西柳州银海铝业股份有限公司 | Method for correcting deviation of head of strip of continuous rolling mill set |
-
2017
- 2017-03-29 CN CN201710194926.2A patent/CN107008759B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107008759A (en) | 2017-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107008759B (en) | A kind of milling train group correction control method and device | |
| EP1839010B9 (en) | Method for determining a space coordinate of a measuring point on a test object and corresponding coordinate measuring device | |
| CN104162549B (en) | The autocontrol method of rougher of hot strip mill machine breakdown bar camber and system | |
| DE112012006981B4 (en) | Process for producing strip steel with different target thicknesses in the longitudinal direction with a continuous hot rolling mill | |
| DE3036997A1 (en) | METHOD FOR CONTROLLING AND REGULATING THE TEMPERATURE OF A WORKPIECE DURING ROLLING IN A HOT-ROLLING MILL | |
| CN103920718A (en) | Roughed strip steel width control method | |
| DE1918449A1 (en) | System for automatic control of the shaping in bar mills | |
| US3882709A (en) | Method for controlling the profile of workpieces on rolling mills | |
| CN104066523B (en) | For the method processing rolled piece in hot rolling workshop | |
| DE19644132B4 (en) | Method for optimizing the bandwidth distribution at the ends of a strip passing through a rolling train | |
| DE19934415B4 (en) | Method for wind tracking in wind turbines | |
| EP1839011A1 (en) | Method for determining a space coordinate of a measuring point on a test object and corresponding coordinate measuring device | |
| DE69913538T2 (en) | Method and device for flatness control | |
| EP0329999A2 (en) | Method and device for controlling the thickness of webs and flanges in universal rolling mill stands | |
| CN105921525A (en) | Correction method for tail of strip of continuous rolling unit | |
| EP1320425B1 (en) | Method and device for operating a hot rolling train with at least one edger | |
| DE102004032392A1 (en) | Flanging method for flanging border edges of a work piece by roll-folding with a folding tool uses a connecting flange and a folding roller rotating on an axle | |
| EP1230993B1 (en) | Device for improving the flatness of rolled strip, in particular of steel strip | |
| EP0349885A2 (en) | Method for cold-rolling sheets and bands | |
| JP4192321B2 (en) | Plate crown control method | |
| JP2661515B2 (en) | Strip crown control method in hot rolling | |
| WO2007022841A1 (en) | Method for thickness regulation during a hot-rolling process | |
| WO2003045598A1 (en) | Inclined position adjustment | |
| JPH03138002A (en) | Wet rolling method | |
| JP3396774B2 (en) | Shape control method |
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 |