CN102649129A - Compound production line and method of controlling the same - Google Patents
Compound production line and method of controlling the same Download PDFInfo
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- CN102649129A CN102649129A CN2011101382137A CN201110138213A CN102649129A CN 102649129 A CN102649129 A CN 102649129A CN 2011101382137 A CN2011101382137 A CN 2011101382137A CN 201110138213 A CN201110138213 A CN 201110138213A CN 102649129 A CN102649129 A CN 102649129A
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Abstract
The invention provides a small-sized compound production line and method of controlling the same, whereby the compound production line including a cold rolling mill runs in a high efficiency manner, and the machine quantity used for building the compound production line can be reduced, and the device can be small-sized. The compound production line provided in the invention comprises a reeling unreeling machine, which is used for reeling and unreeling metal plates processed in a rolling manner; a welding machine, which is disposed on a downstream part of the reeling unreeling machine, and can be used to weld the metal plates provided by the reeling unreeling machine and the previous provided metal plates together; a reversing cold mill, which is disposed on a downstream part of the welding machine, and can be used for the rolling of the metal plates; a middle anti-bending device, which is disposed on a downstream part of the reversing cold mill, and can be used for the stacking of the metal plates; a continuous processing device, which is disposed on a downstream part of the middle anti-bending device, and can be used for the predetermined treatment of the metal plates of the anti-bending device.
Description
Technical field
The present invention relates to the control method of a kind of composite production line and composite production line.More specifically, be applicable to composite production line and the control method thereof that comprises cold-rolling mill and continuous processing apparatus.
Background technology
In the past, the known composite production line that the treatment facility that is connected with unidirectional type cold-rolling mill and surface treatment etc. is arranged.Such composite production line for example adopts following structure: promptly, be connected with two uncoilers, welding machines, go into side loop liftex (looper), cold-rolling mill, go out the side loop liftex and comprise treatment facility of surface treatment etc. etc.Particularly, when by uncoiler metallic plate being provided, metallic plate is sent to welding machine, with the tail end welding of its front end and a last volume metallic plate.Metallic plate is accumulated in the side loop liftex together.To offer cold-rolling mill through the metallic plate of going into the side loop liftex, thereby utilize the work roll of many cold-rolling mills that they are rolled into desirable thickness.Afterwards, metallic plate is imported out the side loop liftex, one through going out the side loop liftex, just they offered treatment facility, and they are wound on the up-coiler that is arranged at outlet side the most at last.
In such equipment, in order continuously metallic plate to be provided two uncoilers are set, so that metallic plate alternately to be provided.The tail end of the leading section of the metallic plate that this alternately provides and a last volume metallic plate welds in welding machine, and when welding, metallic plate is stopped in welding machine.In addition, for example when the work roll of cold-rolling mill being changed operation etc., also need stop cold-rolling mill sometimes.
In going into the side loop liftex, have the structure that can accumulate metallic plate to a certain degree, thereby stop to provide under the situation of metallic plate when welding etc., through the metallic plate in this loop liftex is passed out in the cold-rolling mill, prevent that cold-rolling mill from stopping.
In going out the side loop liftex; Also has the structure that to accumulate metallic plate to a certain degree; Thereby under the situation that cold-rolling mill stops; Through the metallic plate of being accumulated is passed out in the treatment facility, suppress stopping or the speed state caused, that treatment facility stops or processing speed descends that descends by cold-rolling mill.
Patent documentation 1: japanese patent laid-open 06-170430 communique
Summary of the invention
As stated; In composite production line in the past, that comprise the unidirectional type cold-rolling mill; Insert the side loop liftex and go out the side loop liftex in the downstream and the provided upstream of cold-rolling mill respectively; When welding or cold-rolling mill when stopping, seeing the metallic plate that is accumulated in the loop liftex off, thereby suppress the halted state of entire equipment.
Yet, to accumulate in the structure with loop liftex at the upstream and downstream configuration metallic plate of cold-rolling mill like this respectively, it is big that entire equipment can become.In addition, the number of machines of entire equipment also can increase.Yet,, hope to realize device miniaturization, reduce number of machines from reducing the viewpoint of operating cost etc.
Therefore; The present invention is a purpose to address the above problem, and provides a kind of through improved composite production line and control method thereof, thereby the composite production line that comprises cold-rolling mill is worked efficiently; Can reduce the number of machines that constitutes composite production line again, and can make equipment realize miniaturization.
To achieve these goals, composite production line of the present invention comprises: coiling uncoiler, this coiling uncoiler will supply that the metallic plate of rolling processing is reeled, uncoiling; Welding machine, this welding machine is arranged at the downstream of coiling uncoiler, and the metallic plate that will before be provided with it by the metallic plate that the coiling uncoiler newly provides welds; Reversing cold mill, this reversing cold mill is arranged at the downstream of welding machine, and the metallic plate that will pass through is rolled; Middle loop liftex, this centre loop liftex is arranged at the downstream of reversing cold mill, and metallic plate is accumulated; And continuous processing apparatus, predetermined process is implemented to the metallic plate through middle loop liftex in the downstream of loop liftex in the middle of this continuous processing apparatus is disposed at.
Here, what is called utilizes the coiling uncoiler that metallic plate is carried out uncoiling, is to see the meaning that is wound in the metallic plate on the coiling uncoiler off, and on the other hand, what is called is reeled metallic plate, is once more metal plate coils to be around in the meaning on the coiling uncoiler.
In composite production line of the present invention, reversing cold mill comprises the positive direction that can the direction of passage of metallic plate be switched to from the upper reaches downstream or the reciprocal mechanism opposite with said positive direction.Middle loop liftex comprises the mechanism of the length of the metallic plate of ability change accumulation in middle loop liftex.Metallic plate in the middle of being accumulated in the loop liftex is the metallic plate that passes out to reversing cold mill and/or continuous processing apparatus side.
Composite production line of the present invention also may further include and is arranged between welding machine and the reversing cold mill, can be with the reel coiling uncoiler of uncoiling of metallic plate.If should coiling uncoiling function according to the direction of passage of the metallic plate in the reversing cold mill, with the metallic plate uncoiling of reeling.
In composite production line of the present invention, utilize the rolling processing of the metallic plate that reversing cold mill carries out can comprise at least: first is rolling, and this first rollingly is rolled along positive direction; Second is rolling, this second rolling first rolling after, along being rolled in the other direction; And the 3rd is rolling, the 3rd rolling second rolling after, be rolled along positive direction again.In this case; Composite production line also can also comprise: fallout predictor; This fallout predictor second rolling in, to the length that is sent to the metallic plate of reversing cold mill by middle loop liftex, predict with the total length of the length of the metallic plate that is sent to continuous processing apparatus by middle loop liftex; And limiting control device; This limiting control device is to being set by the maximum length of once the handled metallic plate of rolling processing; With the length restriction of the first rolling handled metallic plate in maximum length, make said total length before being no more than the second rolling processing, be accumulated in the middle of in the scope of length of metallic plate in the loop liftex.
The control method of composite production line of the present invention is the control method that certain bar composite production line of the invention described above is controlled; The rolling treatment procedures of the metallic plate in the reversing cold mill comprises at least: first rolling process, and this first rolling process is rolled processing along positive direction; Second rolling process, this second rolling process are after first rolling process, along being rolled processing in the other direction; And the 3rd rolling process, the 3rd rolling process is rolled along positive direction after second rolling process again.
Perhaps; The control method of composite production line of the present invention can be rolled processing; Make in the needed rolling time of second rolling process, by middle loop liftex be sent to the metallic plate of reversing cold mill length, be no more than the cumulative length that will carry out metallic plate before second rolling process, in the middle loop liftex with the total length of length that is sent to the metallic plate of continuous processing apparatus by middle loop liftex.
Perhaps, the control method of composite production line of the present invention also can be divided into a plurality of zones with metallic plate, and each zone is rolled processing.
According to composite production line of the present invention, compare with the situation of using unidirectional cold-rolling mill, through using reversing cold mill, can metallic plate be rolled into desirable thickness with less platform number.Therefore, can reduce the platform number of cold-rolling mill, thereby can make the whole piece composite production line realize miniaturization.
In addition, through the coiling uncoiler being arranged at the upstream side of reversing cold mill, can omit the equipment that metallic plate is accumulated on the entrance side of reversing cold mill, thereby can further realize the miniaturization of composite production line.In addition, through middle the loop liftex that uses the coiling uncoiler and metallic plate is accumulated,, also can make the equipment high efficiency operation and treatment facility is stopped or making the processing speed reduction even in comprising the composite production line of reversing cold mill.
Description of drawings
Fig. 1 is used for the sketch map that the overall structure to the composite production line of embodiment 1 of the present invention describes.
Fig. 2 is used for the sketch map that the overall structure to the composite production line of embodiment 2 of the present invention describes.
Fig. 3 is the sequential chart in the embodiment 2 of the present invention, when composite production line moves.
Fig. 4 is used for the figure that the cumulative length equivalence to speed under each state embodiment 2 of the present invention, composite production line when operation and metallic plate describes.
Fig. 5 is the sequential chart in the embodiment 3 of the present invention, when composite production line moves.
Fig. 6 is used for the figure that the cumulative length equivalence to speed under each state embodiment 3 of the present invention, composite production line when operation and metallic plate describes.
Fig. 7 is used for the figure that the cumulative length equivalence to speed under each state embodiment 3 of the present invention, composite production line when operation and metallic plate describes.
Fig. 8 is used for the figure that the cumulative length equivalence to speed under each state embodiment 3 of the present invention, composite production line when operation and metallic plate describes.
Fig. 9 is used for sketch map that overall structure embodiment 4 of the present invention, composite production line is described.
Label declaration
2,4 coiling uncoilers
6 metallic plates
10 welding machines
12 reversing cold mills
14 work rolls
Loop liftex in the middle of 16
20 continuous processing apparatus
28 up-coilers
202 coiling uncoilers
204 spooling machines
402 fallout predictors
404 limiting control devices
The specific embodiment
With reference to the accompanying drawings, embodiment of the present invention is described.In addition, in each accompanying drawing,, simplify or omit its explanation the identical label of identical or suitable part mark.
[overall structure of composite production line]
Fig. 1 is used for the sketch map that the overall structure to the composite production line of embodiment 1 of the present invention describes.The composite production line of Fig. 1 comprises two coiling uncoilers 2,4.On coiling uncoiler 2,4, be respectively arranged with the metallic plate 6 of coiled type.Downstream at coiling uncoiler 2,4 is provided with welding machine 10.In the downstream of welding machine 10, be provided with two reversing cold mills 12.In reversing cold mill 12 inside separately, be provided with work roll 14.In the downstream of reversing cold mill 12, loop liftex 16 in the middle of being provided with.In the downstream of middle loop liftex 16, be provided with continuous processing apparatus 20.Continuous processing apparatus 20 comprises heat-treating machine 22, surface treating machine 24 and processed machine 26.But continuous processing apparatus 20 also can include only any several equipment wherein.In the downstream of continuous processing apparatus 20, be provided with up-coiler 28.
[action in each device of composite production line]
Coiling uncoiler 2,4 can be seen metallic plate 6 respectively off, and can the metallic plate of being seen off 6 be reeled.What is called utilizes coiling uncoiler 2,4 that metallic plate 6 is carried out uncoiling; It is the meaning that will pass out to welding machine 10 1 sides by the metallic plate 6 that coiling uncoiler 2,4 carries out uncoiling; On the other hand; What is called is reeled metallic plate 6, is to make metallic plate 6 return the meaning of coiling uncoiler 2,4 from welding machine 10 1 sides to coiling uncoiler 2,4 metallic plate 6 rollbacks again.In this composite production line, can utilize coiling uncoiler 2,4, carry out seeing off and reeling of metallic plate 6, thereby omitted the loop liftex of entrance side.
In this composite production line, metallic plate 6 alternately is provided by coiling uncoiler 2,4.That is, for example when the metallic plate 6 that is provided by a coiling uncoiler 2 all provides out, then see the metallic plate 6 that is arranged on another coiling uncoiler 4 off.No matter from coiling uncoiler 2 still from coiling uncoiler 4; Action under the situation of seeing new metallic plate 6 off, composite production line is all identical; Below; For the purpose of simplifying the description, action under the situation of being seen off new metallic plate 6 by a coiling uncoiler 2, composite production line is described.
When seeing new metallic plate 6 off, at first, weld with a last volume metallic plate 6 by coiling uncoiler 2.At this moment, stop under the state of the assigned position of a last volume metallic plate 6 in tail end 6A arrives welding machine 10.The new metallic plate of being seen off by coiling uncoiler 26 stops under the state of the assigned positions in leading section 6B arrives welding machine 10 equally.In welding machine 10, the leading section 6B of metallic plate 6 and the tail end 6A of a last volume metallic plate 6 are welded.
When welding finished, the new metallic plate 6 in the welding was along with a last volume metallic plate 6 is passed out in the reversing cold mill 12 together.Here, reversing cold mill 12 can make the direction that metallic plate 6 flows reverse.That is, in reversing cold mill 12, no matter the direction of passage of metallic plate 6 is to be from upstream to downstream, the i.e. positive direction of loop liftex 16 1 sides in the middle of welding machine 10 1 side direction, and still the opposite direction opposite with positive direction can both be rolled.Thus, in reversing cold mill 12, can make metallic plate 6 between identical work roll 14, repeat through, thereby can repeatedly be rolled.The calendering rate that can make work roll 14 on every edge a direction carry out once changing when rolling.Therefore, can utilize a series of rolling processing, metallic plate 6 is rolled into desirable thickness.In addition, below, in embodiment, in a series of rolling processing, will arrive till the direction that switch to transmit metallic plate 6 during in processing each time be called " rolling road ".
For example, under the situation of carrying out three rolling processing, in the first rolling road, metallic plate 6 is sent to work roll 14 along positive direction.Afterwards, in the second rolling road, utilize coiling uncoiler 2, the metallic plate 6 in the first rolling road that is through with is reeled, thereby make metallic plate 6 in the other direction along passing through between the work roll 14.Afterwards, in the 3rd rolling road, return positive direction, transmit the rolled metal plate 6 in the second rolling road that is through with along positive direction again, thereby make it pass through work roll 14.
The metallic plate 6 of the rolling processing of being carried out with reversing cold mill 12 being through with is sent in the continuous processing apparatus 20 from middle loop liftex 16, carries out each item and handles, and at last it is wound on the up-coiler 28, to finish the processing with production line was carried out.
Yet this composite production line has following structure: promptly, the middle loop liftex 16 of the cumulative length that can change metallic plate 6 is set, thereby can utilizes continuous processing apparatus 20 to continue to handle.Particularly, middle loop liftex 16 makes banded metallic plate 6 form loop (curved elongated portion), so that it is accumulated.Middle loop liftex 16 also comprises the mechanism that the size that can make this loop changes, thus the cumulative length that makes metallic plate 6 from the size of loop for the length under the maximum situation, change for the length under the minimum situation to the size of loop.Thus, when composite production line is worked, reversing cold mill 12 is worked efficiently, and suppress the situation that continuous processing apparatus 20 stops.
For example, during the welding of above-mentioned metallic plate 6 in, metallic plate 6 stops during welding machine 10.Therefore, in this period, be rolled processing, metallic plate 6 do not sent in the middle loop liftex 16 without reversing cold mill 12.In this case, metallic plate 6 in the loop liftex in the middle of being accumulated in 16, after the rolling processing that is through with is sent in the continuous processing apparatus 20.Thus, though reversing cold mill 12 stop during in, also can make continuous processing apparatus 20 work.
In addition, along being rolled under the situation of (anti-rolling road is rolling) carried out rolled metal plate 6 from reversing cold mill 12 along positive direction in the other direction, will be accumulated in together through the metallic plate 6 of reversing cold mill 12 in the middle loop liftex 16.Under the rolling situation in anti-rolling road, the metallic plate of being accumulated 6 is seen off to reversing cold mill 12 1 sides from middle loop liftex 16.Meanwhile, also metallic plate 6 is seen off to continuous processing apparatus 20.Here; If the length of speed during each is handled and initial metallic plate 6 etc. is controlled; To prevent that the metallic plates that are accumulated in the middle loop liftex 16 from not enough situation taking place, even then carrying out under the rolling situation in anti-rolling road, continuous processing apparatus 20 also can be avoided stopping.
In addition, for example under following situation, reversing cold mill 12 also can stop or slowing down.
(a) when replacing, recombination roll 14.
When (b) solder joint or defect point are through work roll 14.At this moment, mill speed is slowed down or stop rollingly, discharge the roller gap of work roll 14, thereby solder joint or defect point are passed through.
(c) solder joint or be arranged at the situation of thickness of slab variation point on the optional position, that be used to change the target thickness of slab through work roll 14.In this case, the mill speed that also slows down or stop rollingly and is altered to the roller gap that reaches desirable target thickness of slab with the roller gap of work roll 14.
In this composite production line; Because of welding, anti-rolling road is rolling and other reasons as (a)～(c) cause under the situation that reversing cold mill 12 stops, slowing down, loop liftex 16 interior metallic plates 6 also can be seen off to continuous processing apparatus 20 in the middle of being accumulated in.Consequently, the size of the loop of middle loop liftex 16 diminishes.Cumulative length through in the loop liftex in the middle of making like this 16 changes, and can make the processing in the continuous processing apparatus 20 continue to carry out, thereby have the structure that production line is worked efficiently and the whole piece composite production line is stopped.
In addition, the metallic plate 6 in the middle loop liftex 16 forms loop under the state that is wound on mobile rollers and the stationary roll.Therefore, even minimum accumulation state in middle loop liftex 16, is also accumulated the metallic plate 6 of the amount that the length of joining with two rollers is arranged at least.Yet, in following embodiment, with do not comprise this part, can see off to the cumulative length of the metallic plate 6 of each device and be made as " effectively cumulative length ".In addition, the size with loop is called " cumulative maximum length ", " minimal accumulated length " for the effective cumulative length under maximum, the minimum situation.
[about the calendering rate and rolling after metallic plate length]
Thickness after the calendering rate ability basis of work roll 14 is finally needed, rolling suitably sets.If establishing the rolling preceding thickness in the rolling road of n is H
n, establish the thickness of the rolling road of n that utilizes this work roll 14 after rolling and be h
n, then such to the rolling road calendering of n rate a as shown in the formula (1)
nDefine.
Calendering rate a
n=(H
n-h
n)/H
n(1)
In addition, below, n is a natural number, representes this rolling which rolling road that is treated to.
In addition, in this embodiment 1, have two work rolls 14, but for the purpose of simplifying the description, the calendering rate unification of two work rolls 14 is made as calendering rate a describes.But, in fact, also can respectively each work roll 14 be made as different calendering rates.
In addition, in the rolling road of n rolling, with calendering rate a
nThe length of having carried out the metallic plate after rolling is rolling back length L
nShown in (2).
Rolling back length L
n=rolling preceding length L
(n-1)/ (1-a
n) (2)
[about the cumulative length of middle loop liftex and the concrete setting of the speed under each operating state]
In this composite production line, can the uncoiling speed of coiling uncoiler 2,4, the speed of appending of middle loop liftex 16 be made as more than the maximum mill speed of reversing cold mill 12.The mill speed of reversing cold mill 12 can be faster than the travelling speed of continuous processing apparatus 20.Below, to effective cumulative length of the middle loop liftex 16 under each operating state that utilizes a series of processing that composite production line carries out, with and the setting of speed describe.
Here, " mill speed " be illustrated in the metallic plate 6 of handling and seeing off in the reversing cold mill 12 speed, be the speed of metallic plate 6 of the outlet side of reversing cold mill 12.Mill speed can change through the rotating speed that makes work roll 14 and adjust.Below, in embodiment, the rotating speed through the control work roll is described the method that mill speed is controlled to be the desired value that sets.
With calendering rate a
nThe mill speed of reversing cold mill 12 when being made as V, the speed v of the entrance side of reversing cold mill 12 (going into side speed) is as shown in the formula shown in (3).
Go into side speed v=(1-a
n) * mill speed V (3)
In addition, the metallic plate 6 in the continuous processing apparatus 20 is made as the metallic plate of handling for 0 time in certain speed V.In addition, the cumulative maximum length of the metallic plate 6 of middle loop liftex 16 is made as Rmax, the effective cumulative length when a series of processing are begun is made as R0, and the initial length of metallic plate 6 before rolling is made as L0.
< welding >
See metallic plate 6 off by coiling uncoiler 2, when welding with welding machine 10, rolling the stopping that being carried out with reversing cold mill 12.When welding, also metallic plate 6 is sent in the continuous processing apparatus 20 from middle loop liftex 16 with speed V0.Therefore, if will be made as T0 weld interval, then for continuous processing apparatus 20 is stopped, the A that need satisfy condition of the effective cumulative length Rs during the welding beginning.
(condition A) Rs >=V0 * T0
Effective cumulative length R0 after welding finishes is as shown in the formula shown in (4).
R0＝Rs-V0×T0 ····(4)
< appending of positive direction is rolling >
In a series of rolling processing, with stipulated number the rolling and reciprocal rolling of positive direction of hocketing.The rolling of positive direction is sent to metallic plate 6 in the reversing cold mill 12 along positive direction.Uncoiling (the seeing off) speed of coiling uncoiler 2 or 4 is set at the identical speed of speed with the entrance side of reversing cold mill 12.
In positive direction rolling; Metallic plate 6 along positive direction through work roll 14 during and effective cumulative length of the metallic plate 6 of the loop liftex 16 that mediating less than during under the state of cumulative maximum length Rmax, with the mill speed V in the reversing cold mill 12
nSet sooner than the processing speed V0 of continuous processing apparatus 20.Below, in embodiment, " append rolling rolling being called under this state ".In addition, after the first rolling road after the welding, rolling (comprise append rolling and long end rolling synchronously) of positive direction with after rolling the hocketing in anti-rolling road stated.Therefore, in the rolling road of odd number, carry out rolling (it is rolling synchronously to append rolling and long end) of positive direction, hereinafter, it is odd number that n is counted in the rolling road in positive direction rolling.
Particularly, according to following formula (5), the speed V to appending of the rolling road of n in rolling
nSet.
T
n1＝(Rmax-R
(n-1))/(V
n-V0) ····(5)
In the formula, T
N1Be the rolling time that appends in the rolling road of n, R
(n-1)It is the rolling effective cumulative length before of appending of the rolling road of n that is about to begin.
But, corresponding with the length of predefined metallic plate 6 by the length of the rolling handled metallic plate 6 in rolling road each time.Mill speed V when therefore, appending
nWith append rolling time T
N1Condition below needing to satisfy.
(condition B) V
n≤L
n/ T
N1
L
nBeing the length (rolling back length) of the metallic plate 6 after the rolling end in the rolling road of n, is the value that calculates according to following formula (2).Under the situation of the B that do not satisfy condition, speed, the time of appending in rolling are set according to following formula (6).
V
n＝L
n/T
n1 ·····(6)
Appending when rolling, with mill speed V
nSpeed difference (V with the processing speed V0 of continuous processing apparatus 20
n-V0) speed is in the middle of metallic plate 6 is accumulated in the loop liftex 16.
< the long end of positive direction is rolling synchronously >
In the positive direction in the rolling road of n is rolling append rolling during, if the effective cumulative length of middle loop liftex 16 arrives cumulative maximum length Rmax, then will be in the state that can't in middle loop liftex 16, accumulate the metallic plate 6 longer than this length.Therefore, append rolling during, when effective cumulative length of middle loop liftex 16 becomes cumulative maximum length Rmax, mill speed is set at and sees off to the identical speed V0 of the speed of continuous processing apparatus 20 from middle loop liftex 16.Under this running status, the effective cumulative length in the middle loop liftex 16 can not increase and decrease, and it is constant to keep cumulative maximum length Rmax.In the embodiment below, with rolling being called under this state " long end is rolling synchronously ".
Long end during the positive direction in the rolling road of n is rolling is rolling time T synchronously
N2It is rolling after appending of the rolling road of n is rolling, not being rolled and the time of remaining all metallic plates 6.Therefore, try to achieve through following formula (7).
T
n2＝(L
n-V
n×T
n1)/V0 ····(7)
< anti-rolling road is rolling >
Behind positive direction rolling, utilize coiling uncoiler 2 or 4 to reel, thereby along metallic plate 6 being sent into reversing cold mill 12 in the other direction.In addition, anti-rolling road is rolling hockets with the rolling of positive direction.Therefore, anti-rolling road is rolling to carry out in the rolling road of even number, and hereinafter, it is even number that n is counted in the rolling road during anti-rolling road is rolling.
If the rolling mill speed in anti-rolling road in the rolling processing in the rolling road of n is made as V
n, then according to following formula (3), the speed of sending into metallic plate 6 to reversing cold mill 12 from middle loop liftex 16 is V
n* (1-a
n).Therefore, the metallic plate 6 in the middle loop liftex 16 is with (V
n* (1-a
nThe speed of)+V0) reduces.In addition, a here
nBe the rolling calendering rate in this anti-rolling road.
If the rolling back length after the rolling end in the rolling road of n is made as L
n, the rolling needed rolling time T in then anti-rolling road
nTry to achieve through following formula (8).
T
n＝L
n/V
n ····(8)
In addition, at anti-rolling road rolling time T
nIn, for the effective cumulative length in the loop liftex in the middle of making 16 does not become 0, with mill speed V
nBe set in the scope of the C that satisfies condition.
(condition C) R
(n-1)>=(V
n* (1-a
n)+V0) * T
n
In addition, in condition C, R
(n-1)Be the rolling effective cumulative length before in the anti-rolling road that is about to begin.
When the rolling end in anti-rolling road, carry out the rolling of positive direction once more.In for the second time later positive direction, the reciprocal rolling scope that is set in the A～C that satisfies condition equally respectively.Like this, with positive direction, reciprocal order, repeat to reaching the rolling of number of times that desirable thickness sets.After the final rolling road that is through with rolling, metallic plate 6 is sent in the continuous processing apparatus 20, when all processing all finish, it is wound on the up-coiler 28.
That kind as described above; According to this embodiment 1; Reversing cold mill 12, coiling uncoiler 2,4 and middle loop liftex 16 are made up, thus can existing composite production line is needed, go into the side loop liftex and go out the side loop liftex to accumulate a loop liftex (middle loop liftex 16), and compared in the past; Can reduce the device number of composite production line, realize the miniaturization of whole production line.
In addition, use reversing cold mill 12 to replace non-reversing cold mill, thereby can realize and the identical calendering rate of calendering rate in the past, that utilize the non-reversible rolling of the more tandem of frame number road milling train to reach with the milling train of less number.Thus, can further realize the miniaturization of whole piece composite production line.
Reduce the quantity of work roll 14 like this, thus can shorten because of recombination roll 14 stop reversing cold mill 12 during or the reversing cold mill 12 that slows down during, thereby can increase work efficiency.And; In the composite production line of this embodiment 1, stop or the reversing cold mill that slows down during since can with continuous processing apparatus 20 handle be accumulated in the middle of metallic plate in the loop liftex 16; Therefore, can continue efficient operation and continuous processing apparatus 20 is stopped.
In addition, the reason that stops, slowing down of illustrated reversing cold mill 12 does not constitute restriction to the present invention in the embodiment 1.This point, each following embodiment too.
In addition, in this embodiment 1, the situation of using two reversing cold mills 12 is illustrated.Yet in the present invention, the platform number of reversing cold mill 12 is not limited thereto.In the present invention,, can consider the efficient, calendering rate of rolling processing etc., come suitably to set this number as long as at least one reversing cold mill 12 is set.This point, each following embodiment too.
In addition, in this embodiment 1, can set the number of pass times of counting the work roll 14 of n as the rolling road of rolling processing according to needed calendering rate and efficient.At this moment, rolling road number is not limited to odd number.Also can change the position relation of coiling uncoiler 2,4, welding machine 10, continuous processing apparatus 20 and up-coiler 28; Perhaps; Set, make, discharge the roller gap of work roll 14 having carried out certain once after rolling road reciprocal rolling; Metallic plate 6 is sent in the continuous processing apparatus 20 and is not rolled, thereby rolling number of times is made as even number.This point, each following embodiment too.
In addition; In this embodiment 1, middle loop liftex 16 adopts the structure that can come change accumulation length through the size of change loop, but the structure of middle loop liftex 16 is not limited thereto; As long as can accumulate metallic plate 6 and can change its cumulative length, also can adopt other structures.This point, each following embodiment too.
Fig. 2 is used for the sketch map that the overall structure to the composite production line of embodiment 2 of the present invention describes.As shown in Figure 2; This composite production line has coiling uncoiler 202 and spooling machine 204 in the downstream of welding machine 10; Replacing a coiling uncoiler 4 in two coiling uncoilers 2,4, and only has a reversing cold mill 12, to replace two reversing cold mills 12; Except that above 2, this composite production line has the structure identical with the composite production line of Fig. 1.
In this composite production line, the metallic plate 6 of coiled type is arranged on the coiling uncoiler 2 at first all the time, sees off from coiling uncoiler 2.When the leading section 6B of the metallic plate of newly seeing off 6 in welding machine 10 with on during the tail end 6A welding of a volume metallic plate 6, at first metallic plate 6 is seen off to reversing cold mill 12, to stipulate the rolling processing of rolling road number.
Particularly, having carried out rolled metal plate 6 with utilizing the rolling of positive direction is accumulated in the middle loop liftex 16.Here; Even under the situation that the metallic plate 6 that will be arranged on the coiling uncoiler 2 all provides out, afterwards, reversing cold mill 12 still continues to be rolled along positive direction; When the tail end 6A of metallic plate 6 arrived reversing cold mill 12 fronts, reversing cold mill 12 stopped.
After stopping, reversing cold mill 12 reverses, thereby it is rolling to begin anti-rolling road.At this moment, utilize spooling machines 204 such as shoestring lapper, metallic plate 6 is wound on the coiling uncoiler 202.After anti-rolling road rolling in, part among the metallic plate 6 in the middle loop liftex 16, that thickness of slab is not rolled down to the target thickness of slab is wound on the coiling uncoiler 202.
In final rolling road rolling, even after all metallic plates 6 with coiling uncoiler 202 all provide out, also proceed rolling.In the moment in front of the tail end 6A of metallic plate 6 arrives the inlet of reversing cold mill 12 once more, stop rolling.Behind rolling the stopping, reversing cold mill 12 reverses, thereby the tail end 6A of metallic plate 6 is sent in the welding machine 10 and stops.Afterwards, weld, repeat aforesaid operation again with the leading section 6B that is arranged on next the volume metallic plate 6 on the coiling uncoiler 2 in advance.
Like this, coiling uncoiler 202 is arranged between welding machine 10 and the reversing cold mill 12, thereby can makes from coiling uncoiler 202 to reversing cold mill 12 distance shorter than the distance coiling uncoiler 2 and the reversing cold mill 12.Thus, can shorten the length of the uneven gauge of the metallic plate that can't be rolled processing.
In above-mentioned processing, carrying out utilizing coiling uncoiler 202 that metallic plate 6 is reeled under the rolling situation in anti-rolling road.Therefore, need be with the again coiling time of metallic plate 6 circumvolutions on coiling uncoiler 202 before the anti-rolling road of beginning is rolling.The needed time is made as T if will reel again
N0, then owing to be sent in the continuous processing apparatus 20, therefore, the metallic plate 6 of middle loop liftex 16 reduces T
N0* V0.Thereby, initial effective cumulative length R in the rolling road of n
(n-1)D need satisfy condition.
(condition D) R
(n-1)>=V0 * T
N0
About other, the work conditions needed of this production line and the design conditions of speed, identical with embodiment 1.
Below, the example of running status of the composite production line of embodiment 2 of the present invention is shown.Fig. 3 is the sequential chart of the rolling processing in this example, at the upside of Fig. 3, and effective cumulative length of loop liftex 16 in the middle of illustrating, at downside, the time that mill speed is shown changes.Fig. 4 is time, speed and the equivalent figure of effective cumulative length under each running status of specifically representing in this example.
With reference to Fig. 3,4; In this example, effective cumulative lengths before the operation beginning, in the middle loop liftex 16 are made as 600 [m], it is following to establish running status: promptly; The initial length L0 of the metallic plate 6 that is processed is 300 [m], and the processing speed V0 of continuous processing apparatus 20 is 2 fixing all the time [m/s].In addition, establish rolling road and count n=3, that is, be located in the first rolling road and be rolled along positive direction, it is rolling in the second rolling road, to carry out anti-rolling road, in the 3rd rolling road, is rolled processing along positive direction again.In order to simplify, the calendering rate a1～a3 in the first rolling road, the second rolling road, the 3rd rolling road all is made as 0.15.But, in fact, can the calendering rate in each rolling road be made as different calendering rates.
< welding (operation A) >
Weld period among Fig. 3 stops rolling, and mill speed is 0 [m/s].At weld period, in continuous processing apparatus 20, continue the metallic plate of seeing off from middle loop liftex 16 6 is handled with fixing speed V0=2 [m/s].Therefore, in 120 [s] of weld period (A), the effective cumulative length R in the middle loop liftex 16 reduces 240 [m] and becomes 360 [m].
< the first rolling road appends rolling (process B) >
When beginning when rolling, append rolling during, with mill speed V
1Be set at speed 8 [m/s].Append rolling time T
11Be 40 [s].During this period, in the middle of with the speed of speed difference 6 [m/s] metallic plate 6 being accumulated in the loop liftex 16, thereby the cumulative length of loop liftex 16 reaches cumulative maximum length 600 [m] in the middle of making.In addition, the speed V here
1, append rolling time T
11B satisfies condition.
< the first long end in rolling road rolling synchronously (operation C) >
After reaching cumulative maximum length, the speed of reversing cold mill 12 is made as the speed V0=2 [m/s] identical with the speed of continuous processing apparatus 20.Between long end sync period, the cumulative length in the middle loop liftex 16 is maintained cumulative maximum length 600 [m].According to formula (7), the synchronous rolling time of long end in the first rolling road is 16.47 [s].Here, finish the rolling of the first rolling road.The length L of the metallic plate 6 after rolling
1Become 352.94 [m].
< reel again (step D) >
After the rolling end in the first rolling road, utilize spooling machine 204, with the tail end 6A circumvolution of metallic plate 6 on coiling uncoiler 202.This time T of reeling again
20Be 25 [s].During this period, owing in continuous processing apparatus 20, transmit metallic plate 6 with fixing speed 2 [m/s], therefore, the cumulative length R in the middle loop liftex 16
20Reduce by 50 [m] and become 550 [m].
< anti-rolling road, the second rolling road rolling (operation E) >
Afterwards, it is rolling to carry out anti-rolling road.The anti-rolling mill speed V in rolling road
2Be 16 [m/sec], the metallic plate 6 of 352.94 [m] after the first rolling road is prolonged carries out the rolling time T in anti-rolling road
21Be 25.95 [s].If the speed of the metallic plate 6 of loop liftex 16 1 sides then is 13.6 [m/sec] in the middle of being converted into.Therefore, during anti-rolling road is rolling (E), the metallic plate cumulative length in the middle loop liftex 16 reduces with the speed of 15.6 [m/sec].Finishing anti-rolling road when rolling, the effective cumulative length R in the middle loop liftex 16
21Be 145.16 [m].
< the 3rd rolling road appends rolling (operation F) >
Then begin the rolling of the 3rd rolling road.Effective cumulative length R of current middle loop liftex 16
21Be 145.16 [m], less than cumulative maximum amount 600 [m].Therefore, append rolling.Here, with the mill speed V of 30 [m/s]
3Be rolled.Speed with 28 [m/s] is accumulated in metallic plate in the middle loop liftex 16.The metallic plate 6 of middle loop liftex 16 reaches the time T till the cumulative maximum length
30Be 16.24 [s].
< the 3rd long end in rolling road rolling synchronously (operation G) >
Append rolling after, will arrive till the rolling end in the 3rd rolling road during to be made as long end rolling synchronously.According to above-mentioned formula (7), this time T
31Be 0.65 [s].During this period, it is constant that effective cumulative length of middle loop liftex 16 is kept cumulative maximum length 600 [m], the rolling end in the 3rd rolling road.
In addition, till being rolled down to the 3rd rolling road from anti-rolling road during in, on coiling uncoiler 2, prepare next spiral round metallic plate 6.Thus; In moment of rolling end in the final rolling road of a last volume metallic plate 6; The tail end 6A that will go up a volume metallic plate 6 immediately oppositely is sent in the welding machine, thereby the leading section 6B and last that can begin next volume metallic plate 6 rolls up the operation (A) of the welding between the tail end 6A of metallic plate 6.
That kind as described above; In embodiment 2; Reversing cold mill 12 and coiling uncoiler 2, coiling uncoiler 202 and middle loop liftex 16 are made up, thereby can go into the side loop liftex and go out these two loop liftexs of side loop liftex and accumulate one conventional device is needed.Therefore, can further realize the miniaturization of whole production line, and can utilize this composite production line, carry out a series of rolling processing efficiently.
In addition, in embodiment 2, the situation of only using a reversing cold mill 12 is illustrated; But the present invention is not limited thereto, for example, also can as enforcement mode 1, use two reversing cold mills 12; In addition, can also further use more reversing cold mill 12.
In addition, in embodiment 2, be illustrated carrying out this rolling situation of three times of the rolling road of first rolling road～3.Yet the present invention is not limited thereto, can be according in order to obtain the needed calendering rate of desirable thickness of slab, set work roll 14 number of pass times, be rolling road number.In addition, identical with embodiment 1, rolling number of times is not limited to odd number.
Embodiment 3
Embodiment 3 has the structure identical with the system of Fig. 2.In the system of this embodiment 3; Under the long situation of the total length of the mother metal of metallic plate; Its total length is divided into a plurality of zones, these a series of continuous processing of processing that each said zone is stipulated the rolling processing of rolling road number and utilized continuous processing apparatus 20 to be carried out.
In the rolling processing after said cutting apart, carry out a series of processing with the processing of embodiment 2 basically identically, but only on following 2, handle different.
(1) except that rolling processing volume metallic plate 6, last zone, carries out coiling processing again before need be not rolling in anti-rolling road.
(2) before the rolling beginning in an initial zone of a volume metallic plate 6, need not weld.
Fig. 5 is the sequential chart that utilizes the composite production line rolling processing that carry out, concrete of embodiment 3 of the present invention, at the upside of Fig. 5, and effective cumulative length of loop liftex 16 in the middle of illustrating, at downside, the time that mill speed is shown changes.
In the example of Fig. 5, the initial mother metal length of input metallic plate 6 is made as 700 [m], it is halved, per 350 [m] are cut apart rolling in a zone.Here, the rolling road number of establishing the rolling processing in a zone is 3 rolling roads.But; Below; In this embodiment 3, for convenience's sake, above-mentioned formula (1)～formula (8) and condition A～employed n of condition D are made as consecutive numbers; Promptly; The junior three rolling road mark till will finishing from the initial rolling road in preceding half zone of the first volume of metallic plate 6, to the 3rd rolling road in preceding half zone is made as n=1,2,3, with after three rolling road marks in later half zone of the first volume be made as n=4,5,6, with after three rolling road marks in preceding half zone of second volume be made as n=7,8,9.Calendering rate in each rolling road all is made as 0.15.In addition, Fig. 6～Fig. 8 is the figure of the numerical value under each running status of rolling processing of example of this Fig. 5 of expression, and Fig. 6 relates to half zone before the first volume, and Fig. 7 relates to the later half zone of the first volume, and Fig. 8 relates to half zone before second volume.
< welding >
Like Fig. 5 and shown in Figure 6, when the rolling first volume of beginning, carry out the welding of 120 [s].According to above-mentioned formula (1), at weld period, the effective cumulative length in the middle loop liftex 16 reduces 240 [m] and becomes 360 [m].
The half first rolling road before the first volume
Then, become before the first volume half the first rolling road and append during.If the T of substitution formula (6)
N1And consider to satisfy condition B, then need to append rolling mill speed V
1Be made as more than 4.79 [m/s], be made as 6 [m/s] here.According to above-mentioned formula (5), rolling time is 60 [s].Append rolling after, the length of the metallic plate 6 in the middle loop liftex 16 reaches cumulative maximum length Rmax.
After the length of the metallic plate 6 in middle loop liftex 16 reaches cumulative maximum length, mill speed is maintained the speed 2 [m/s] identical with the transfer rate that transmits to continuous processing apparatus 20.According to above-mentioned formula (7), this long end is rolling time T synchronously
12Be 25.88 [s].
The length L of handled metallic plate 6 during the first rolling road is rolling
0For 1/2 of total length is 350 [m].Because the calendering rate is 0.15, therefore, according to formula (2), the rolling back length L after the first rolling road is rolling
1Be 411.76 [m].
The half second rolling road before the first volume
After the rolling end in the first rolling road, do not reel again and to begin anti-rolling road immediately rolling.Rolling back length L after anti-rolling road is rolling
2Become 484.43 [m].If the T of substitution formula (8)
N1And consider to satisfy condition C, then need mill speed be made as more than 5.14 [m/s].Here, mill speed is 6 [m/s].According to above-mentioned formula (8), anti-rolling road rolling time T
2Become 80.74 [s].
Anti-rolling road rolling during in, [m/s] transports metallic plate 6 to continuous processing apparatus 20 with certain speed 2.Therefore, in this period, the metallic plate in the middle loop liftex 16 reduces with the speed of 7.1 [m/s].Therefore, after the rolling end in anti-rolling road, the metallic plate 6 in the middle loop liftex 16 reduces by 573.24 [m], and effectively cumulative length becomes 26.76 [m].
Half the 3rd rolling road before the first volume
The 3rd rolling road append rolling in, with mill speed V
3Be made as 8 [m/s].Under the situation of appending rolling time till calculating effective cumulative length to become cumulative maximum length according to formula (5) with this speed, appending rolling time becomes 95.54 [s], but under this appended rolling time, B can't satisfy condition.Therefore, according to formula (6), will append rolling time and be made as T
3=71.24 [s].Finish the 3rd rolling road and do not get into long end synchronous regime.After the 3rd rolling road finished, effective cumulative length of middle loop liftex 16 became 454.20 [m].
< the first volume later half first rolling road >
With reference to Fig. 5 and Fig. 7, follow-up processing is described.In later half zone rolling, owing to need not welding operation, therefore, the pair roller gap is set, and makes the calendering rate become a
4, and entering is appended rolling immediately.With the mill speed V here
4Be made as 6 [m/s].According to formula (5), rolling time is 36.45 [s], utilizes this rolling, and effectively cumulative length arrives cumulative maximum length.Afterwards, switch the growth end synchronously.According to formula (8), long end is rolling time T synchronously
42Be 96.53 [s].During this period, the effective cumulative length in the middle loop liftex 16 maintains cumulative maximum length.
< the first volume later half second rolling road >
In later half rolling processing, reel again when need be in anti-rolling road rolling.Again the time T of reeling
50Be 25 [s], during this period, effectively cumulative length becomes 550 [m].Again after reeling, it is rolling to carry out anti-rolling road.The anti-rolling speed V in rolling road
5Be 8 [m/s].The rolling back length L that anti-rolling road is rolling
5Be 484.43 [m], the rolling needed time T in anti-rolling road
51Be 60.55 [s].During this period, because the metallic plate 6 of middle loop liftex 16 reduces with the speed of 8.8 [m/s], therefore, the effective cumulative lengths in the middle loop liftex 16 become 17.13 [m].
< first volume the later half the 3rd rolling road >
The 3rd rolling road append rolling in, with mill speed V
6Be made as 8 [m/s].Under the situation of appending rolling time till calculating effective cumulative length to become cumulative maximum length according to formula (5) with this speed, appending rolling time becomes 97.14 [s], but under this appended rolling time, B can't satisfy condition.Therefore, according to formula (6), will append rolling time and be made as T
6=71.24 [s].Finish the 3rd rolling road and do not get into long end synchronous regime.After the 3rd rolling road finished, effective cumulative length of middle loop liftex 16 became 444.57 [m].
The half first rolling road before second volume
Use Fig. 5 and Fig. 8, follow-up processing is described.When the metallic plate 6 of second volume is provided, need in initial zone, carry out welding operation.Weld needed time T
70Be 120 [s].Effective cumulative length of middle loop liftex 16 reduces by 240 [m] and becomes 204.57 [m].
Then, append rolling.With mill speed V
7Be made as 6 [m/s].Under the situation of appending rolling time till calculating effective cumulative length to become cumulative maximum length according to formula (5) with this speed, B can't satisfy condition.Therefore, according to formula (6), will append rolling time and be made as T
71=68.63 [s].Therefore, finish the rolling of the first rolling road, and do not switch the end synchronous regime of growing up.After the first rolling road finished, effective cumulative length of middle loop liftex 16 became 479.08 [m].
The half second rolling road before second volume
After the rolling end in the first rolling road, in the processing in preceding half zone, do not reel again and to begin anti-rolling road immediately rolling.Rolling back length L after anti-rolling road is rolling
8Be 484.43 [m].The rolling mill speed in anti-rolling road is made as 15 [m/s], according to above-mentioned formula (8), anti-rolling road rolling time T
8Be 32.30 [s].
Anti-rolling road rolling during in, [m/s] transports metallic plate 6 to continuous processing apparatus 20 with certain speed 2.Therefore, in this period, the metallic plate 6 in the middle loop liftex 16 reduces with the speed of 14.75 [m/s].After the rolling end in anti-rolling road, the effective cumulative length in the middle loop liftex 16 becomes 2.72 [m].
Half the 3rd rolling road before second volume
The 3rd rolling road append rolling in, with mill speed V
9Be made as 8 [m/s].Under the situation of appending rolling time till calculating effective cumulative length to become cumulative maximum length according to formula (5) with this speed, B can't satisfy condition.Therefore, according to formula (6), will append rolling time and be made as T
3=71.24 [s].Finish the 3rd rolling road and do not get into long end synchronous regime.After the 3rd rolling road finished, effective cumulative length of middle loop liftex 16 became 430.16 [m].Then, carry out with the first volume after hemiidentic rolling processing.
As stated; One volume metallic plate 6 is divided into a plurality of zones handles, thereby even for the long metallic plate 6 of mother metal length, also can utilize the composite production line of this embodiment 3 to handle continuously; And treatment facility 20 is stopped, or processing speed is reduced.
In addition, in embodiment 3, to metallic plate 6 second-class situation of assigning to handle are illustrated.Yet, in the present invention, be not limited thereto, also can be divided into plural a plurality of zone and handle.In addition, each regional length also can be different.
Fig. 9 is used for the figure that the composite production line to embodiment 4 of the present invention describes.The difference of the composite production line of Fig. 9 and the composite production line of Fig. 2 is, comprises fallout predictor 402 and limiting control device 404.
In the composite production line of this embodiment 4, fallout predictor 402 has following function: promptly, and based on above-mentioned formula (2), to the length L of the metallic plate behind the first rolling road, the second rolling road rolling
1, L
2Predict.And fallout predictor 402 is predicted the total length of the rolling metallic plate of seeing off from middle loop liftex 16 6 through the second rolling road based on following formula (9).
Prediction length=L
1+ (L
2/ V
2) * V0 (9)
Limiting control device 404 is before the first rolling road is rolling; Zone length to by the handled metallic plate 6 of primary processing converts, and the prediction length that fallout predictor 402 is doped is shorter than the length of 16 the cumulative maximum length that can accumulate of middle loop liftex.The zone length one of the metallic plate of being seen off in the first rolling road 6 arrives the zone length that converses, and limiting control device 404 just limits so that it stops coiling uncoiler 2.
Coiling uncoiler 2 being limited so that under its situation about stopping, rolling through anti-rolling road, utilize coiling uncoiler 2 that metallic plate 6 is reeled.In addition, when by the anti-rolling road rolling end of the rolling part in the first rolling road, return positive direction again, begin the rolling of the 3rd rolling road.
That kind as described above, in embodiment 4, the processing region once of ability automatic setting metallic plate 6, and be rolled, make it be no more than the cumulative maximum length of middle loop liftex 16.
In addition, in embodiment 4, the situation of using two reversing cold mills 12 is illustrated.Yet in the present invention, reversing cold mill 12 is not limited thereto, and also can use the reversing cold mill more than or three.
In addition, in above embodiment, under the situation of mentioning number such as the number of each key element, quantity, amount and scope, except that situation about showing clearly especially or obviously confirming as on the principle the situation of this number, the present invention is not limited to this mentioned number.In addition, for structure illustrated in this embodiment etc., except that situation about showing clearly especially or the situation of obviously confirming as this structure etc. on the principle, the present invention is not limited thereto.
Claims (7)
1. a composite production line is characterized in that, comprising:
Coiling uncoiler, this coiling uncoiler will supply that the metallic plate of rolling processing is reeled, uncoiling;
Welding machine, this welding machine is arranged at the downstream of said coiling uncoiler, and the metallic plate that will before be provided with it by the metallic plate that said coiling uncoiler newly provides welds;
Reversing cold mill, this reversing cold mill is arranged at the downstream of said welding machine, and the metallic plate that will pass through is rolled;
Middle loop liftex, this centre loop liftex is arranged at the downstream of said reversing cold mill, and metallic plate is accumulated; And
Continuous processing apparatus, this continuous processing apparatus are disposed at the downstream of said middle loop liftex, and the metallic plate through loop liftex in the middle of said is implemented predetermined process,
Said reversing cold mill comprises the positive direction that can the direction of passage of metallic plate be switched to from the upper reaches downstream or the reciprocal mechanism opposite with said positive direction,
Loop liftex comprises the mechanism of ability change accumulation length of the metallic plate in the loop liftex in the middle of said in the middle of said,
The metallic plate that is accumulated in the said middle loop liftex passes out to said reversing cold mill and/or said continuous processing apparatus side.
2. composite production line as claimed in claim 1 is characterized in that, also comprises:
Coiling uncoiler, this coiling uncoiler are arranged between said reversing cold mill and the said welding machine, can be with the metallic plate uncoiling of reeling,
According to the direction of passage of the metallic plate in the said reversing cold mill, utilize said coiling uncoiler with the uncoiling of reeling of said metallic plate.
3. according to claim 1 or claim 2 composite production line is characterized in that,
Utilize the rolling processing of the metallic plate that said reversing cold mill carries out to comprise at least:
First is rolling, and this said positive direction in first rolling edge is rolled;
Second is rolling, this second rolling said first rolling after, be rolled along said opposite direction; And
The 3rd is rolling, the 3rd rolling said second rolling after, be rolled along said positive direction again,
Said composite production line also comprises:
Fallout predictor; This fallout predictor said second rolling in, to the length that is sent to the metallic plate of said reversing cold mill by loop liftex in the middle of said, predict with the total length of the length of the metallic plate that is sent to said continuous processing apparatus by loop liftex in the middle of said; And
Limiting control device; This limiting control device is to being set by the maximum length of once the handled metallic plate of said rolling processing; With the length restriction of the said first rolling handled metallic plate in said maximum length, make said total length before being no more than the said second rolling processing, be accumulated in the middle of in the scope of length of metallic plate in the loop liftex.
4. the control method of a composite production line is the control method of composite production line that composite production line as claimed in claim 1 is controlled, it is characterized in that,
The rolling treatment procedures of the metallic plate in the said reversing cold mill comprises at least:
First rolling process, this first rolling process is rolled along said positive direction;
Second rolling process, this second rolling process are rolled along said opposite direction after said first rolling process; And
The 3rd rolling process, the 3rd rolling process are rolled along said positive direction after said second rolling process again.
5. the control method of composite production line as claimed in claim 4 is characterized in that,
Carry out said rolling processing; Make in the needed rolling time of said second rolling process, by loop liftex in the middle of said be sent to the metallic plate of said reversing cold mill length, with the total length of the length of the metallic plate that is sent to said continuous processing apparatus by loop liftex in the middle of said be no more than will carry out before said second rolling process, said in the middle of the cumulative length of metallic plate in the loop liftex.
6. like the control method of claim 4 or 5 described composite production lines, it is characterized in that,
Said composite production line also comprises the coiling uncoiler, and this coiling uncoiler is arranged between said reversing cold mill and the said welding machine, can be with the metallic plate uncoiling of reeling,
In said second rolling process and said the 3rd rolling process,, utilize said coiling uncoiler with the uncoiling of reeling of said metallic plate according to the direction of passage of said metallic plate in said reversing cold mill.
7. like the control method of claim 4 or 5 described composite production lines, it is characterized in that,
Said metallic plate is divided into a plurality of zones, said rolling processing is carried out in each zone.
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| JP2011038572A JP5685985B2 (en) | 2011-02-24 | 2011-02-24 | Composite line and control method of composite line |
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| JP5685985B2 (en) | 2015-03-18 |
| CN102649129B (en) | 2015-03-25 |
| JP2012171010A (en) | 2012-09-10 |
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