CN110064653A - A kind of method and apparatus applied to the rolling of cold continuous rolling changeover portion - Google Patents
A kind of method and apparatus applied to the rolling of cold continuous rolling changeover portion Download PDFInfo
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- CN110064653A CN110064653A CN201910314601.2A CN201910314601A CN110064653A CN 110064653 A CN110064653 A CN 110064653A CN 201910314601 A CN201910314601 A CN 201910314601A CN 110064653 A CN110064653 A CN 110064653A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 173
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000003466 welding Methods 0.000 claims abstract description 76
- 230000007547 defect Effects 0.000 claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 239000002994 raw material Substances 0.000 abstract description 16
- 230000008859 change Effects 0.000 abstract description 11
- 230000002950 deficient Effects 0.000 abstract description 6
- 230000007704 transition Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000005097 cold rolling Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 240000000233 Melia azedarach Species 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/02—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
- B21B1/04—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing in a continuous process
-
- 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
- B21B37/005—Control of time interval or spacing between workpieces
-
- 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
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Abstract
The present invention provides a kind of method and apparatus applied to the rolling of cold continuous rolling changeover portion, pass through and obtain the first strip and the second strip, wherein the first strip and the second strip are adjacent strip；The position while welding of first strip and second strip is obtained in real time；According to the position while welding of first strip and second strip, rolling mode is switched over to control between position control and Constant dvaught pressure control.Solving cold even bundle machine change specification rolling, weld defect or weld seam in the prior art, nearby there are easily there is the band that breaks, seriously affect production capacity when raw material defect.Reach the switching by rolling mode, the operation of rolling of tandem mills is digested from rolling mill practice, avoid becoming in strip that specification transition, there are when raw material defect near weld defect fire weld seam, keep the disconnected band problem that original rolling mode easily causes, simultaneously avoid that rack need to be opened due to defective near weld seam or weld seam, the time is saved, the technical effect of production capacity is improved.
Description
Technical field
The present invention relates to cold continuous rolling technical field more particularly to a kind of methods applied to the rolling of cold continuous rolling changeover portion
And device.
Background technique
It is raw material that cold continuous rolling, which is with coils of hot-rolled steel, through pickling to remove oxide.Its finished product is to roll hard volume, since continuous cold becomes
The flow harden of shape makes to roll the intensity rolled up firmly, hardness rising, the decline of tough modeling index, therefore punching performance will deteriorate, and be only used for
The part of simple deformation.Continuous Cold Rolled Strip production includes: the processes such as pickling, cold rolling, degreasing, annealing, smooth, finishing, plating coating,
Cold-rolled steel coils must carry out finishing, including cutting head, tail, trimming, leveling, smooth, rewinding or slitting cutting plate etc. after annealing.Cold rolling
Product is widely used in automobile manufacture, household appliances, the industries such as meter switch, building, office furniture.In cold-rolling process
In, if discovery weld seam failure welding itself, weld seam nearby split there are side and when the defects of twills, cold continuous rolling is frequently sent out when rolling
Raw disconnected band accident, seriously affects the sour stable operation for rolling production line and production capacity plays.
Applicants have discovered that the above-mentioned prior art at least has the following technical problems:
Cold even bundle machine becomes specification rolling, weld defect or weld seam nearby there are when raw material defect in the prior art, easily occurs
The technical issues of break band, seriously affects production capacity.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus applied to the rolling of cold continuous rolling changeover portion, solve existing
Cold even bundle machine becomes specification rolling, weld defect or weld seam nearby there are when raw material defect in technology, disconnected band easily occurs, seriously affects
The technical issues of production capacity.
In view of the above problems, propose the embodiment of the present application in order to provide it is a kind of applied to cold continuous rolling changeover portion rolling
Method and apparatus.
In a first aspect, the present invention provides a kind of methods applied to the rolling of cold continuous rolling changeover portion, which comprises
Obtain the first strip and the second strip, wherein first strip is adjacent strip with second strip；Described in obtaining in real time
The position while welding of first strip and second strip；It, will according to the position while welding of first strip and second strip
Rolling mode switches over control between position control and Constant dvaught pressure control.
Preferably, before the position while welding for obtaining first strip and second strip in real time, comprising: obtain
The rolling data of first strip and second strip, weld seam size and material quality；Judge first strip and institute
Whether the roll gap variable quantity for stating the second strip is more than first threshold or the weld seam with the presence or absence of defect；If first strip
Roll gap variable quantity with second strip is more than first threshold or the weld seam existing defects, obtains first strip in real time
With the position while welding of second strip.
Preferably, whether the roll gap variable quantity for judging first strip and second strip is more than first threshold
Or the weld seam is with the presence or absence of after defect, further includes: if it is determined that the roll gap of first strip and second strip becomes
Change amount is not above first threshold or the weld seam, and there is no defects, obtain the rolling of first strip and second strip
Data, weld seam size and material quality.
Preferably, the position while welding according to first strip and second strip, by rolling mode in position
Control is switched between control and Constant dvaught pressure control, comprising: obtains the first normal place, first normal place is weldering
The normal place being sewn to up to before cold continuous rolling prow rack；Judge whether the position while welding reaches first normal place；When
When the position while welding reaches first normal place, the rolling mode is switched into the permanent roll-force by position control
Control.
Preferably, it is described judge whether the position while welding reaches first normal place after, further includes: when described
When position while welding does not reach first normal place, the weld seam position of first strip and second strip is obtained in real time
It sets.
Preferably, the position while welding according to first strip and second strip, by rolling mode in position
Control is switched between control and Constant dvaught pressure control, further includes: obtains the second normal place, second normal place is
Weld seam reaches the normal place after the rack of cold continuous rolling end；Judge whether the position while welding reaches second normal place；
When the position while welding reaches second normal place, the rolling mode is switched into institute's rheme by Constant dvaught pressure control
Set control.
Preferably, it is described judge whether the position while welding reaches second normal place after, further includes: when described
When position while welding does not reach second normal place, the weld seam position of first strip and second strip is obtained in real time
It sets.
Second aspect, the present invention provides a kind of device applied to the rolling of cold continuous rolling changeover portion, described device includes:
First obtains unit, the first obtains unit is for obtaining the first strip and the second strip, wherein described first
Strip and second strip are adjacent strip；
Second obtaining unit, second obtaining unit are used to obtain first strip and second strip in real time
Position while welding；
First switch unit, first switch unit are used for the weld seam according to first strip and second strip
Rolling mode is switched over control by position between position control and Constant dvaught pressure control.
Preferably, described device further include:
Third obtaining unit, the third obtaining unit are used to obtain the rolling of first strip and second strip
Data, weld seam size and material quality；
First judging unit, first judging unit are used to judge the roll gap of first strip Yu second strip
Whether variable quantity is more than first threshold or the weld seam with the presence or absence of defect；
4th obtaining unit, if the 4th obtaining unit is used for the roll gap of first strip and second strip
Variable quantity is more than first threshold or the weld seam existing defects, obtains the weld seam of first strip and second strip in real time
Position.
Preferably, described device further include:
5th obtaining unit, the 5th obtaining unit is used for if it is determined that first strip and second strip
Roll gap variable quantity is not above first threshold or the weld seam, and there is no defects, obtain first strip and second strip
Rolling data, weld seam size and material quality.
Preferably, described device further include:
6th obtaining unit, the 6th obtaining unit are for obtaining the first normal place, first normal place
Weld seam reaches the normal place before cold continuous rolling prow rack；
Second judgment unit, the second judgment unit is for judging whether the position while welding reaches first standard
Position；
Second switch unit, second switch unit are used to reach first normal place when the position while welding
When, the rolling mode is switched into the Constant dvaught pressure control by position control.
Preferably, described device further include:
7th obtaining unit, the 7th obtaining unit are used to not reach first normal bit when the position while welding
When setting, the position while welding of first strip and second strip is obtained in real time.
Preferably, described device further include:
8th obtaining unit, the 8th obtaining unit are for obtaining the second normal place, second normal place
Weld seam reaches the normal place after the rack of cold continuous rolling end；
Third judging unit, the third judging unit is for judging whether the position while welding reaches second standard
Position；
Third switch unit, the third switch unit are used to reach second normal place when the position while welding
When, the rolling mode is switched into the position control by Constant dvaught pressure control.
Preferably, described device further include:
9th obtaining unit, the 9th obtaining unit are used to not reach second normal bit when the position while welding
When setting, the position while welding of first strip and second strip is obtained in real time.
The third aspect, the present invention provides a kind of devices applied to the rolling of cold continuous rolling changeover portion, including memory, place
The computer program managing device and storage on a memory and can running on a processor, the processor execute real when described program
Existing following steps: the first strip and the second strip are obtained, wherein first strip is adjacent strip with second strip；
The position while welding of first strip and second strip is obtained in real time；According to first strip and second strip
Rolling mode is switched over control by position while welding between position control and Constant dvaught pressure control.
Fourth aspect, the present invention provides a kind of computer readable storage mediums, are stored thereon with computer program, the journey
It is performed the steps of when sequence is executed by processor and obtains the first strip and the second strip, wherein first strip and described the
Two strips are adjacent strip；The position while welding of first strip and second strip is obtained in real time；According to the first band
Rolling mode is switched over control by the position while welding of steel and second strip between position control and Constant dvaught pressure control
System.
Said one or multiple technical solutions in the embodiment of the present application at least have following one or more technology effects
Fruit:
A kind of method and apparatus applied to the rolling of cold continuous rolling changeover portion provided in an embodiment of the present invention, by cold company
Forward and backward two coiled strip steels situation is obtained in any rack in milling train group, and first strip and the second strip are adjacent
Front and back coiled strip steel, and the specific location of real-time monitoring the first strip and the second strip steel weld joint, when weld seam reaches desired position,
Rolling mode is adjusted, it will be in position control mode and permanent roll-force control according to the specific location situation cold continuous rolling of weld seam
Automatically switched between molding formula, realize the switching by rolling mode, rolling for tandem mills is digested from rolling mill practice
Process processed avoids keeping original rolling die there are when raw material defect near strip change specification transition, weld defect fire weld seam
The disconnected band problem that formula easily causes, while avoiding that rack need to be opened due to defective near weld seam or weld seam, blank coil weld seam, when saving
Between, production capacity is improved, nearby there are raw materials to solve cold even bundle machine change specification rolling, weld defect or weld seam in the prior art
When defect, the technical issues of easily there is disconnected band, seriously affect production capacity.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the method applied to the rolling of cold continuous rolling changeover portion in the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the device applied to the rolling of cold continuous rolling changeover portion in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another device for being applied to the rolling of cold continuous rolling changeover portion in the embodiment of the present invention.
Description of symbols: first obtains unit 11, the second obtaining unit 12, the first switch unit 13, bus 300 connect
Receive device 301, processor 302, transmitter 303, memory 304, bus interface 306.
Specific embodiment
The embodiment of the invention provides a kind of method and apparatus applied to the rolling of cold continuous rolling changeover portion, existing for solving
There is cold even bundle machine in technology to become specification rolling, weld defect or weld seam nearby there are when raw material defect, disconnected band, serious shadow easily occurs
The technical issues of ringing production capacity.
Technical solution general thought provided by the invention is as follows:
Obtain the first strip and the second strip, wherein first strip is adjacent strip with second strip；In real time
Obtain the position while welding of first strip and second strip；According to the weld seam of first strip and second strip
Rolling mode is switched over control by position between position control and Constant dvaught pressure control.Reach through rolling mode
Switching digests the operation of rolling of tandem mills from rolling mill practice, avoids becoming specification transition, weld defect fire weld seam in strip
Nearby there are the disconnected band problems for when raw material defect, keeping original rolling mode to easily cause, while avoiding due to weld seam or weld seam
Defective nearby to open rack, blank coil weld seam saves the time, improves the technical effect of production capacity.
Technical solution of the present invention is described in detail below by attached drawing and specific embodiment, it should be understood that the application
Specific features in embodiment and embodiment are the detailed description to technical scheme, rather than to present techniques
The restriction of scheme, in the absence of conflict, the technical characteristic in the embodiment of the present application and embodiment can be combined with each other.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein
Middle character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
Embodiment one
Fig. 1 is a kind of flow diagram of the method applied to the rolling of cold continuous rolling changeover portion in the embodiment of the present invention.This
Inventive embodiments provide a kind of method applied to the rolling of cold continuous rolling changeover portion, as shown in Figure 1, which comprises
Step 110: obtaining the first strip and the second strip, wherein first strip is adjacent with second strip
Strip.
Step 120: obtaining the position while welding of first strip and second strip in real time.
Step 130: according to the position while welding of first strip and second strip, by rolling mode in position control
Control is switched between Constant dvaught pressure control.
Specifically, being obtained to forward and backward two coiled strip steels situation in rack any in tandem mills, the first band
Steel and the second strip are adjacent front and back coiled strip steel, and the specific location of real-time monitoring the first strip and the second strip steel weld joint,
When weld seam reaches desired position, rolling mode is adjusted, it will be according to the specific location situation cold continuous rolling of weld seam
Automatically switched between position control mode and Constant dvaught pressure control mode, the switching by rolling mode is realized, from rolling
The operation of rolling that tandem mills are digested in technique avoids there is original near strip change specification transition, weld defect fire weld seam
When expecting defect, the disconnected band problem for keeping original rolling mode to easily cause, while avoiding due to defective near weld seam or weld seam
Need to open rack, blank coil weld seam saves the time, improve production capacity, thus solve cold even bundle machine in the prior art become specification rolling,
Nearby there are easily there is disconnected band, seriously affect production capacity when raw material defect for weld defect or weld seam.
Further, before the position while welding for obtaining first strip and second strip in real time, comprising: obtain
Obtain rolling data, weld seam size and the material quality of first strip and second strip；Judge first strip with
Whether the roll gap variable quantity of second strip is more than first threshold or the weld seam with the presence or absence of defect；If the first band
The roll gap variable quantity of steel and second strip is more than first threshold or the weld seam existing defects, obtains the first band in real time
The position while welding of steel and second strip.
Further, whether the roll gap variable quantity for judging first strip and second strip is more than the first threshold
Value or the weld seam are with the presence or absence of after defect, further includes: if it is determined that the roll gap of first strip and second strip
Variable quantity is not above first threshold or the weld seam there is no defect, obtains rolling for first strip and second strip
Data, weld seam size and material quality processed.
Specifically, whether being first to become specification rolling, weld defect or weldering to coil of strip when starting method of the invention
Nearby there are raw material defect these types situations to be judged for seam, specially obtains the first strip, the second strip, that is, refers in unit
Two coiled strip steels of any continuous adjacent, usual cold continuous rolling are multi rack, and the strip in the cold even bundle machine of any frame is required to be sentenced
It is fixed.Rolling data, the weld seam size, material quality for obtaining strip, according to the rolling number of forward and backward adjacent two coiled strip steel of cold continuous rolling
Front and back coiled strip steel roll gap variable quantity is calculated according to, weld seam size, judges whether front and back coiled strip steel roll gap variable quantity exceeds given threshold,
The embodiment of the present invention is preferably 1.2mm according to the threshold value that unit situation sets roll gap variable quantity, that is, operates normally lower roll gap and become
The maximum value of change has the risk of disconnected band beyond this threshold value, then when calculating, which obtains roll gap variable quantity, is more than 1.2mm, needs to start this
The method of invention, if being not above 1.2mm can the mode position of tradition setting rolled, the setting of threshold value is according to specifically
Production status, unit situation can be adjusted.Similarly according to the rolling data, material quality, weld seam of front and back coiled strip steel
Data may determine that obtain strip with the presence or absence of weld defect, material quality problem as a result, being rolled according to judging result
The switching of mode then needs to start the method for the embodiment of the present invention, if not having when weld seam existing defects, material quality are problematic
Problem does not need starting this method then, and continuation is controlled according to traditional rolling mode, and using flexible ensure that unit
Stable operation.
Further, the position while welding according to first strip and second strip, rolling mode is in place
It sets and switches over control between control and Constant dvaught pressure control, comprising: obtain the first normal place, first normal place is
Weld seam reaches the normal place before cold continuous rolling prow rack；Judge whether the position while welding reaches first normal place；
When the position while welding reaches first normal place, the rolling mode is switched into the permanent rolling by position control
Power control.
Specifically, it includes by position that rolling mode switches over control between position control and Constant dvaught pressure control
Control mode switch is that permanent rolling force mode is both position control mode by permanent roll-force pattern switching, and the principle specifically switched is
The position of former and later two adjacent strip steel weld joints exists in the strip that cold Lian Zhaji has been determined and becomes specification rolling, weld defect or weldering
Seam nearby there are method of the invention when raw material defect situation, is started, monitors the position while welding of adjacent two coiled strip steel in front and back in real time,
Before weld seam reaches cold even bundle prow frame when normal place, frame cold continuous rolling headed by Plays of embodiment of the present invention position is preferred
At first 3 meters, it is of course possible to carry out appropriate adjustment according to the actual situation, it is preferred embodiment that the embodiment of the present invention, which provides, thus is worked as
It determines weld monitoring of problems to reach before first frame cold continuous rolling at 3 meters, rolling mode is switched by position control mode
Force mode is rolled for perseverance, preferred price roll-force is set as 3000KN when being converted to permanent rolling force mode, other cold continuous rollings
Roll-force is 2000KN, while it is 49m/s that cold Lian Zhaji speed is driven at end.In this way by the adjustment to technique, traditional behaviour is avoided
Work, which need to be opened, reduces productivity caused by rack, avoid the disconnected band accident of strip caused by rolling great efforts, seriously affect production line
Stable operation, to solve cold even bundle machine change specification rolling, weld defect or weld seam in the prior art, nearby there are raw materials to lack
When falling into, the technical issues of easily there is disconnected band, seriously affect production capacity.
Further, it is described judge whether the position while welding reaches first normal place after, further includes: work as institute
When stating position while welding and not reaching first normal place, the weld seam of first strip and second strip is obtained in real time
Position.
Further, the position while welding according to first strip and second strip, rolling mode is in place
It sets and switches over control between control and Constant dvaught pressure control, further includes: obtain the second normal place, second normal place
Normal place after reaching cold continuous rolling end rack for weld seam；Judge whether the position while welding reaches second normal bit
It sets；When the position while welding reaches second normal place, the rolling mode is switched into institute by Constant dvaught pressure control
State position control.
Further, it is described judge whether the position while welding reaches second normal place after, further includes: work as institute
When stating position while welding and not reaching second normal place, the weld seam of first strip and second strip is obtained in real time
Position.
Specifically, the position of real-time monitoring weld seam is continued to after being adjusted to Constant dvaught pressure control mode, when weld seam
When normal place is driven at arrival cold company bundle machine end in position, rolling mode is position control mode by permanent roll-force pattern switching, preferably
It is cold even bundle machine end drive normal place be 5 meters of cold continuous rolling end rack locate, when weld seam reach 5 meters of cold continuous rolling end rack when, general
Rolling mode is switched to position control mode, restores conventional control state, so that method of the invention terminates.Reach by rolling
The switching of molding formula digests the operation of rolling of tandem mills from rolling mill practice, avoids lacking in strip change specification transition, weld seam
Falling into fire weld seam, nearby there are the disconnected band problems for when raw material defect, keeping original rolling mode to easily cause, while avoiding due to weldering
Defective near seam or weld seam to open rack, blank coil weld seam saves the time, improves the technical effect of production capacity.
Embodiment two
Based on inventive concept same as a kind of method applied to the rolling of cold continuous rolling changeover portion in previous embodiment, originally
Invention also provides a kind of device applied to the rolling of cold continuous rolling changeover portion, as shown in Fig. 2, described device includes:
First obtains unit 11, the first obtains unit 11 is for obtaining the first strip and the second strip, wherein described
First strip and second strip are adjacent strip；
Second obtaining unit 12, second obtaining unit 12 for obtaining first strip and second band in real time
The position while welding of steel；
First switch unit 13, first switch unit 13 are used for according to first strip and second strip
Rolling mode is switched over control by position while welding between position control and Constant dvaught pressure control.
Further, described device further include:
Third obtaining unit, the third obtaining unit are used to obtain the rolling of first strip and second strip
Data, weld seam size and material quality；
First judging unit, first judging unit are used to judge the roll gap of first strip Yu second strip
Whether variable quantity is more than first threshold or the weld seam with the presence or absence of defect；
4th obtaining unit, if the 4th obtaining unit is used for the roll gap of first strip and second strip
Variable quantity is more than first threshold or the weld seam existing defects, obtains the weld seam of first strip and second strip in real time
Position.
Further, described device further include:
5th obtaining unit, the 5th obtaining unit is used for if it is determined that first strip and second strip
Roll gap variable quantity is not above first threshold or the weld seam, and there is no defects, obtain first strip and second strip
Rolling data, weld seam size and material quality.
Further, described device further include:
6th obtaining unit, the 6th obtaining unit are for obtaining the first normal place, first normal place
Weld seam reaches the normal place before cold continuous rolling prow rack；
Second judgment unit, the second judgment unit is for judging whether the position while welding reaches first standard
Position；
Second switch unit, second switch unit are used to reach first normal place when the position while welding
When, the rolling mode is switched into the Constant dvaught pressure control by position control.
Further, described device further include:
7th obtaining unit, the 7th obtaining unit are used to not reach first normal bit when the position while welding
When setting, the position while welding of first strip and second strip is obtained in real time.
Further, described device further include:
8th obtaining unit, the 8th obtaining unit are for obtaining the second normal place, second normal place
Weld seam reaches the normal place after the rack of cold continuous rolling end；
Third judging unit, the third judging unit is for judging whether the position while welding reaches second standard
Position；
Third switch unit, the third switch unit are used to reach second normal place when the position while welding
When, the rolling mode is switched into the position control by Constant dvaught pressure control.
Further, described device further include:
9th obtaining unit, the 9th obtaining unit are used to not reach second normal bit when the position while welding
When setting, the position while welding of first strip and second strip is obtained in real time.
One of 1 embodiment one of earlier figures be applied to cold continuous rolling changeover portion rolling method various change mode and
Specific example is equally applicable to a kind of device applied to the rolling of cold continuous rolling changeover portion of the present embodiment, by aforementioned to one kind
The detailed description of method applied to the rolling of cold continuous rolling changeover portion, those skilled in the art are clear that the present embodiment
The implementation method of middle a kind of device applied to the rolling of cold continuous rolling changeover portion, so in order to illustrate the succinct of book, herein no longer
It is described in detail.
Embodiment three
Based on inventive concept same as a kind of method applied to the rolling of cold continuous rolling changeover portion in previous embodiment, originally
Invention also provides a kind of device applied to the rolling of cold continuous rolling changeover portion, is stored thereon with computer program, which is located
Reason device realizes a kind of the step of either method applied to the rolling of cold continuous rolling changeover portion described previously method when executing.
Wherein, in Fig. 3, bus architecture (is represented) with bus 300, and bus 300 may include any number of interconnection
Bus and bridge, bus 300 will include the one or more processors represented by processor 302 and what memory 304 represented deposits
The various circuits of reservoir link together.Bus 300 can also will peripheral equipment, voltage-stablizer and management circuit etc. it
Various other circuits of class link together, and these are all it is known in the art, therefore, no longer carry out further to it herein
Description.Bus interface 306 provides interface between bus 300 and receiver 301 and transmitter 303.Receiver 301 and transmitter
303 can be the same element, i.e. transceiver, provide the unit for communicating over a transmission medium with various other devices.
Processor 302 is responsible for management bus 300 and common processing, and memory 304 can be used for storage processor
302 when executing operation used data.
Example IV
Based on inventive concept same as a kind of method applied to the rolling of cold continuous rolling changeover portion in previous embodiment, originally
Invention also provides a kind of computer readable storage medium, is stored thereon with computer program, real when which is executed by processor
Existing following steps: the first strip and the second strip are obtained, wherein first strip is adjacent strip with second strip；
The position while welding of first strip and second strip is obtained in real time；According to first strip and second strip
Rolling mode is switched over control by position while welding between position control and Constant dvaught pressure control.
In the specific implementation process, when which is executed by processor, method either can also be realized in embodiment one
Step.
Said one or multiple technical solutions in the embodiment of the present application at least have following one or more technology effects
Fruit:
A kind of method and apparatus applied to the rolling of cold continuous rolling changeover portion provided in an embodiment of the present invention, by cold company
Forward and backward two coiled strip steels situation is obtained in any rack in milling train group, and first strip and the second strip are adjacent
Front and back coiled strip steel, and the specific location of real-time monitoring the first strip and the second strip steel weld joint, when weld seam reaches desired position,
Rolling mode is adjusted, it will be in position control mode and permanent roll-force control according to the specific location situation cold continuous rolling of weld seam
Automatically switched between molding formula, realize the switching by rolling mode, rolling for tandem mills is digested from rolling mill practice
Process processed avoids keeping original rolling die there are when raw material defect near strip change specification transition, weld defect fire weld seam
The disconnected band problem that formula easily causes, while avoiding that rack need to be opened due to defective near weld seam or weld seam, blank coil weld seam, when saving
Between, production capacity is improved, nearby there are raw materials to solve cold even bundle machine change specification rolling, weld defect or weld seam in the prior art
When defect, the technical issues of easily there is disconnected band, seriously affect production capacity.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
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)
1. a kind of method applied to the rolling of cold continuous rolling changeover portion, which is characterized in that the described method includes:
Obtain the first strip and the second strip, wherein first strip is adjacent strip with second strip；
The position while welding of first strip and second strip is obtained in real time；
According to the position while welding of first strip and second strip, by rolling mode in position control and permanent roll-force control
Control is switched between system.
2. the method as described in claim 1, which is characterized in that described to obtain first strip and second strip in real time
Position while welding before, comprising:
Obtain rolling data, weld seam size and the material quality of first strip and second strip；
Judge first strip and second strip roll gap variable quantity whether be more than first threshold or the weld seam whether
Existing defects；
If the roll gap variable quantity of first strip and second strip is more than first threshold or the weld seam existing defects,
The position while welding of first strip and second strip is obtained in real time.
3. method according to claim 2, which is characterized in that the roller of judgement first strip and second strip
Whether seam variable quantity is more than first threshold or the weld seam with the presence or absence of after defect, further includes:
If it is determined that the roll gap variable quantity of first strip and second strip is not above first threshold or the weld seam
There is no defects, obtain rolling data, weld seam size and the material quality of first strip and second strip.
4. the method as described in claim 1, which is characterized in that the weldering according to first strip and second strip
Position is stitched, rolling mode is switched over to control between position control and Constant dvaught pressure control, comprising:
The first normal place is obtained, first normal place is that weld seam reaches the normal place before cold continuous rolling prow rack；
Judge whether the position while welding reaches first normal place；
When the position while welding reaches first normal place, the rolling mode is switched into the perseverance by position control
Roll-force control.
5. method as claimed in claim 4, which is characterized in that described to judge whether the position while welding reaches first mark
After level is set, further includes:
When the position while welding does not reach first normal place, first strip and second band are obtained in real time
The position while welding of steel.
6. the method as described in claim 1, which is characterized in that the weldering according to first strip and second strip
Position is stitched, rolling mode is switched over to control between position control and Constant dvaught pressure control, further includes
The second normal place is obtained, second normal place is that weld seam reaches the normal place after the rack of cold continuous rolling end；
Judge whether the position while welding reaches second normal place；
When the position while welding reaches second normal place, the rolling mode is switched into institute by Constant dvaught pressure control
State position control.
7. method as claimed in claim 6, which is characterized in that described to judge whether the position while welding reaches second mark
After level is set, further includes:
When the position while welding does not reach second normal place, first strip and second band are obtained in real time
The position while welding of steel.
8. a kind of device applied to the rolling of cold continuous rolling changeover portion, which is characterized in that described device includes:
First obtains unit, the first obtains unit is for obtaining the first strip and the second strip, wherein first strip
It is adjacent strip with second strip；
Second obtaining unit, second obtaining unit are used to obtain the weld seam of first strip and second strip in real time
Position；
First switch unit, first switch unit are used for the weld seam position according to first strip and second strip
It sets, rolling mode is switched over to control between position control and Constant dvaught pressure control.
9. a kind of device applied to the rolling of cold continuous rolling changeover portion, including memory, processor and storage are on a memory simultaneously
The computer program that can be run on a processor, which is characterized in that the processor performs the steps of when executing described program
Obtain the first strip and the second strip, wherein first strip is adjacent strip with second strip；
The position while welding of first strip and second strip is obtained in real time；
According to the position while welding of first strip and second strip, by rolling mode in position control and permanent roll-force control
Control is switched between system.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
It is performed the steps of when execution
Obtain the first strip and the second strip, wherein first strip is adjacent strip with second strip；
The position while welding of first strip and second strip is obtained in real time；
According to the position while welding of first strip and second strip, by rolling mode in position control and permanent roll-force control
Control is switched between system.
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| CN201910314601.2A CN110064653B (en) | 2019-04-18 | 2019-04-18 | Method and device applied to rolling of transition section of cold continuous rolling mill |
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| CN110064653B (en) | 2021-08-20 |
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