CN106391726B - A kind of hot rolling synchronous mode side compression machine template method of adjustment - Google Patents
A kind of hot rolling synchronous mode side compression machine template method of adjustment Download PDFInfo
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- CN106391726B CN106391726B CN201510465012.6A CN201510465012A CN106391726B CN 106391726 B CN106391726 B CN 106391726B CN 201510465012 A CN201510465012 A CN 201510465012A CN 106391726 B CN106391726 B CN 106391726B
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- 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
- B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
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Abstract
A kind of hot rolling synchronous mode side compression machine template method of adjustment, the hot rolling synchronous mode side compression machine includes main crank mechanism and synchronization crank mechanism, the main crank mechanism drives module by mechanical linkage, and band plate slab is driven in vertical direction, that is band plate slab traffic direction motion, by using the deviation of synchronous mode side compression machine both sides crank operating angle, direction during manual control crank side pressure stress, the regulation of the horizontal direction deviation of Hot Strip blanket type is carried out with this.According to the present invention so that side compression machine there has also been the function of template adjustment, and template is controllable, avoids slab percussion device from causing to damage, in addition, adjustment band steel plate type does not sacrifice the type of carving simultaneously.
Description
Technical field
The present invention relates to metallurgical industry field, it is more particularly related to utilize synchronous mode side compression machine in hot rolling mill
Carry out the control method of roughing Profiles of Hot Rolling adjustment.
Background technology
In hot rolling mill, Profiles of Hot Rolling (shape of strip top view) problem is always to perplex a major issue of production.
The impacted factor of Profiles of Hot Rolling is more, and such as temperature, material, equipment state reason can all cause Profiles of Hot Rolling off-center.
For roughing, it is desirable that template control measures that can be accurate and effective, when template is occurred by certain factor
During deviation, operative employee can efficiently control roughing outlet template by this means.
At present, the template control technique of roughing is to carry out the adjustment of template using the deviation of horizontal roller both sides roll gap, still
Without the technology that template regulation and control are carried out using side compression machine.
Existing synchronous mode side compression machine synchronisation control means.
Such as Fig. 1, shown in 2, the synchronous mode side compression machine uses continous way fixed-width side press, the biography of continous way fixed-width side press
It is dynamic to be divided into three parts, mainly completed by three lateral pressing structure of shoe, Width adjusting mechanism, lazy-tongs mechanisms.
Fig. 1 is the device structure sketch of hot rolling synchronous mode side compression machine.
Fig. 2 is the main crank of synchronous mode side compression machine, synchronization crank drive block motion schematic diagram.The motion of module is by main song
Handle and synchronization crank drive respectively, and drive strip in motion vertically and horizontally.In fig. 2, main crank rotates,
Moved under driving mechanical connecting rod and module in the vertical direction, (thus module is produced to the vertical direction with plate slab, i.e. strip
The motion of slab traffic direction, the motion for this direction, the module of both sides are that strict machinery is carried out by mechanical structure
Synchronization action.And synchronization crank rotates then that driving mechanical connecting rod and module move that (thus module produces level side in the horizontal direction
To movement, to laterally carrying out side pressure movement perpendicular to the strip with plate slab traffic direction with plate slab), this both sides module
The synchronization action of horizontal direction does not have mechanical device then, is to synchronize action by electrical control completely.
(main crank and synchronization crank are driven to band steel plate to above-mentioned main crank and the angle ring of each autokinesis of synchronization crank
The cut-in point that side pressure movement is laterally carried out perpendicular to the strip with plate slab traffic direction of base is set) it is defined as：Its is each
It it is 45 ° from the nearest operating point of spacing module.
It can be clearly seen from Fig. 2, the angle of both sides synchronization crank determines module position during side pressure.In normal side pressure
When, the synchronization crank angle of both sides should be consistent substantially.
Existing template control technique and the problem of exist
Existing in roughing R1, R2 template control technique is carried out using the deviation of roughing milling train horizontal roller both sides roll gap
The adjustment of template.Its specific implementation is：Actual motion adjust template method when, if the inclined active side of template is run into if will
Working roll pushes several MM, if running into the inclined transmission side of template, then several MM will be lifted on working roll.
The time that above-mentioned this method of adjustment uses is longer, it should says it is relatively effective adjustment side a kind of so far
Formula, its schematic diagram are as shown in Figure 3.When operating personnel adjust both sides roll gap intentionally so that the roll gap of active side is less than transmission side, this
Sample, in rolling, the strip extension of active side is more, and so, the template of horizontal roller mill outlet will be inclined to transmission side；With this
It is similar, can be by the ratio transmission side of the roll gap regulation of active side if operating personnel intentionally get the template of deviation active side
It is big.
Although the regulation and control method of above-mentioned this template is effective, also a problem is brought simultaneously：The adjustment of its template
Be to sacrifice type of carving (because of follow-up finish rolling needs, the shape of strip sectional view needs necessarily carve type) premised on.Adjust it every time
Afterwards, it, which carves type, certain deviation can all occurs, when serious, can also influence the thickness and precision of strip.
Goal of the invention
To overcome above mentioned problem, it is an object of the invention to：
A kind of method that roughing control Profiles of Hot Rolling is carried out by hot rolling synchronous mode side compression machine is provided, by using synchronous mode
The deviation of side compression machine both sides crank operating angle, direction during manual control crank side pressure stress, hot-strip is carried out with this
The regulation of the horizontal direction deviation of slab template.
See Fig. 1-8, a kind of principle of hot rolling synchronous mode side compression machine template method of adjustment of the invention is as follows：
For synchronous mode side compression machine, on modules dragged side pressure direction (x-axis) is synchronously mechanical synchronization, can not be carried out
Control；And modules dragged synchronization in the y-axis direction is then electric synchronization.
By prior art, every time in side pressure, the angle of both sides is consistent, i.e., in Fig. 4, both sides module is on the y axis
Height be consistent.So, slab is in stress, and discounting for other factors, in y-axis direction, (y-axis direction is slab
Slab traffic direction) on should be straight.
But in actual use, due to the influence of various factors (such as both sides temperature deviation), the elongation of strip both sides
Have certain difference, therefore, when both sides module in the synchronous case, i.e. y-axis it is highly consistent when, template has certain
Skewed popularity, that is, there is inclined active side or transmission side problem of the hot rolling synchronous mode side compression machine with plate slab template.
Technical program of the present invention lies in purposefully, with having direction adjust strip plate typed horizontal direction (i.e. perpendicular to strip
Slab y-axis direction) deviation.When band steel plate type is inclined to (i.e. perpendicular to band plate slab y-axis direction) in the horizontal direction, have
Consciousness controls the height of both sides module on the y axis by the adjustment of both sides synchronization crank angle, controls template to exist with this
The deviation of horizontal direction (i.e. perpendicular to plate slab y-axis direction).
That is, the principle of technical solution of the present invention is：
By the control of both sides synchronization crank angle, (side of slab traffic direction two) module is purposefully adjusted in y-axis
Height, make its asymmetric, so as to reach regulation template in the horizontal direction (i.e. perpendicular to plate slab y-axis direction) deviation mesh
's.
A kind of technical scheme of hot rolling synchronous mode side compression machine template method of adjustment of the present invention is as follows：
A kind of hot rolling synchronous mode side compression machine template method of adjustment, it is to carry out the same step of template using hot rolling synchronous mode side compression machine
Adjusting method,
The hot rolling synchronous mode side compression machine includes active side main crank mechanism and transmission side synchronization crank mechanism, the main song
Handle mechanism drives module by mechanical linkage, and drives band plate slab to be moved in vertical direction, i.e. band plate slab traffic direction,
The synchronization crank mechanism drives module by mechanical linkage, and drives band plate slab perpendicular to vertical direction,
Transverse movement i.e. with plate slab traffic direction,
When the synchronous mode side compression machine is in holding state, main crank mechanism with given (for example, 5 revs/min) at a slow speed
Speed is creeped, and synchronization crank mechanism is still in 0 degree,
Characterized in that,
High-speed starting condition meets, when band plate slab brings into operation, PLC sends high-speed starting instruction, and main crank is for the first time
During 45 degree by work starting point, system sends synch command to main crank mechanism, main crank mechanism start by it is described at a slow speed
It is even to accelerate to quick operation (for example, 50 revs/min)；
When 45 degree Jing Guo work starting point of main crank second, synchronization crank mechanism starts by static even acceleration, directly
To the simultaneously and rapidly speed of service reached with main crank mechanism；
Now, as (driving) angle of main crank mechanism and synchronization crank mechanism to module is not implemented synchronous, i.e. cause mould
When block is highly inconsistent in the y-axis direction,
In the side pressure idle point of main crank, i.e. main crank angle is [75 °, 315 °] point, to synchronization crank and main crank
Differential seat angle compensates,
That is, main crank speed is constant, and the synchronization crank on both sides each provides additional benefit according to the differential seat angle with main crank
Repay, thus control the template deviation (i.e. perpendicular to plate slab y-axis direction) in the horizontal direction.
Because at this moment, the speed that both (main crank mechanism and synchronization crank mechanism are to modules) realize Y-direction is same
Step, but the driving angle of both (main crank mechanism and synchronization crank mechanism are to modules) is also not carried out synchronization, i.e. because of angle
Synchronization is also not carried out, causes module highly also inconsistent in the y-axis direction.
On the other hand, main crank and the differential seat angle of synchronization crank (must not be worked in the side pressure idle node of each cycle
Point), namely main crank angle is to be compensated in the range of [75 °, 315 °],
As a result, active side synchronization crank is in side pressure, can be than transmission side synchronization angleFast A angles, so that
Obtain active side module A angles faster than transmission side module on the y axis.
In this way so that active side synchronization crank in side pressure, can A angles faster than transmission side synchronization angle,
So that active side module A angles faster than transmission side module on the y axis.Control method is synchronously established more than, final
The result gone out is that both sides synchronization crank angle is consistent, eliminates template deviation so that side compression machine there has also been the function of template adjustment.
According to the present invention a kind of hot rolling synchronous mode side compression machine template method of adjustment,
When the synchronous mode side compression machine is in holding state, what main crank mechanism can give, for example, 4-8 revs/min slow
The speed of speed is creeped.
According to the present invention a kind of hot rolling synchronous mode side compression machine template method of adjustment,
High-speed starting condition meets, when band plate slab brings into operation, PLC sends high-speed starting instruction, and main crank is for the first time
During 45 degree by work starting point, system sends synch command to main crank mechanism, main crank mechanism start by it is described at a slow speed
It is even to accelerate to, for example, 40-80 revs/min of quick operation.
According to the present invention a kind of hot rolling synchronous mode side compression machine template method of adjustment,
The compensation way is：
Main crank speed is constant, and the synchronization crank on both sides each provides 5-10% benefit according to the differential seat angle with main crank
Repay.
According to a kind of hot rolling synchronous mode side compression machine template method of adjustment of the present invention, it is characterised in that
The compensation way is：
Main crank speed is constant, the synchronization crank compensation that each differential seat angle of basis and main crank provides on both sides, i.e. work
Make side main crank synchroballistic and transmission side synchronization crank synchroballistic：
In formula,
KOcomFor active side main crank synchroballistic angle,
KDcomFor transmission side synchronization crank synchroballistic angle,
For main degree in crank angle,
For active side synchronization crank angle,
For transmission side synchronization crank angle,
K is coefficient, 0.7-0.9.
In (Fig. 8) KOcomIn, by original main crank and the differential seat angle of the side synchronization crank along with the angle for needing to adjust
Degree, this angle A send PLC to after being inputted by operating personnel on operation screen.Original KDcomKeep constant.I.e.：
In formula,For main degree in crank angle,For active side synchronization crank angle,For transmission side synchronization crank angle
Degree, KDcom, KOcomRepresent coefficient, 0.7-0.9.
So, it is active side synchronization crank in the range of [75 °, 315 °] in main crank angleAngle on target be no longer
Main crank angle, butAngle；And the angle on target of synchronous side synchronization crank is still main crank angle.
As a result, active side synchronization crank is in side pressure, can be than transmission side synchronization angleFast A angles, so that
Obtain active side module A angles faster than transmission side module on the y axis.
Control method is synchronously established more than, the result finally drawn is that both sides synchronization crank angle is consistent.
Compared with prior art, the present invention mainly has the advantage that：
1. realize side compression machine adjustment template function from scratch,
Conventional roughing region template is adjusted and can only realized on horizontal roller mill, the implementation of the technical program so that side pressure
Machine there has also been the function of template adjustment.
2. improving the stability of side compression machine outlet device, ensure that rolling line is stable,
In the past when side compression machine outlet template is bad, the equipment such as side compression machine delivery guide, roller-way are often damaged, but by
It is controlled in no means, equipment can only be look at helplessly and be damaged.The technical program make it that template is controllable, avoids slab from hitting
Equipment is hit to cause to damage.
3. adjustment band steel plate type does not sacrifice the type of carving simultaneously,
Original function that template adjustment is carried out using horizontal roller mill is this tune to sacrifice premised on strip carves type
Section mode can make belt steel thickness precision be affected.The implementation of the technical program causes the control of template to be separated with carving type control,
With good independence.
Brief description of the drawings
Fig. 1 is continous way fixed-width side press device structure schematic diagram.
Fig. 2 is main crank, synchronization crank drive block motion schematic diagram.
Fig. 3 is that use level roller mill carries out template adjustment schematic diagram.
Main crank, synchronization crank drive block motion schematic diagram when Fig. 4 is side pressure.
When Fig. 5 represents that both sides module y-axis is highly consistent, template is straight state diagram.
When Fig. 6 represents adjustment both sides module y-axis height, plate form control is deviation WS side state diagrams.
Fig. 7 is speed compensation control figure.
Fig. 8 is Baosteel hot rolling 1580mm producing line large lateral pressure control block diagrams.
Fig. 9 A, B are respectively the actual effect figure that technical solution of the present invention is not used.
Figure 10 A, B are respectively the actual effect figure using the present invention program.
In figure, 1-main motor；2-synchronous motor；3-module opening adjustment mechanism；4-module；5-slab；6-on
Lower hold-down roller.
In Fig. 8,
Embodiment
Embodiment
Patent of the present invention is implemented on Baosteel hot rolling 1580mm producing line side compression machines.From same time, same to heat (batch) number, same specification
Product Contrast on effect sees that the technical program is notable for template Adjustment effect.
According to the hot rolling synchronous mode side compression machine template method of adjustment of the present embodiment, the hot rolling synchronous mode side compression machine includes work
Zuo Ce main cranks mechanism and transmission side synchronization crank mechanism, the main crank mechanism drives module by mechanical linkage, and drives
Band plate slab is in vertical direction, the i.e. motion of band plate slab traffic direction.
The synchronization crank mechanism drives module by mechanical linkage, and drives band plate slab perpendicular to vertical direction,
Transverse movement i.e. with plate slab traffic direction.
When the synchronous mode side compression machine is in holding state, main crank mechanism is climbed with 5 revs/min given of speed at a slow speed
OK, synchronization crank mechanism is still in 0 degree.
High-speed starting condition meets, when band plate slab brings into operation, PLC sends high-speed starting instruction, and main crank is for the first time
During 45 degree by work starting point, system sends synch command to main crank mechanism, main crank mechanism start by it is described at a slow speed
The even quick operation for accelerating to 50 revs/min.
When 45 degree Jing Guo work starting point of main crank second, synchronization crank mechanism starts by static even acceleration, directly
To the simultaneously and rapidly speed of service reached with main crank mechanism.
Now, (driving) angle of main crank mechanism and synchronization crank mechanism to module is not implemented synchronous, i.e. causes module
It is highly inconsistent in the y-axis direction.Now, in the side pressure idle point of main crank, i.e. main crank angle is [75 °, 315 °] point, right
The differential seat angle of synchronization crank and main crank compensates,
That is, main crank speed is constant, and the synchronization crank on both sides each provides additional benefit according to the differential seat angle with main crank
Repay, thus control the template deviation (i.e. perpendicular to plate slab y-axis direction) in the horizontal direction.
To main crank and the differential seat angle of synchronization crank in the side pressure idle node (i.e. not operating point) of each cycle, namely main song
Handle angle is to be compensated in the range of [75 °, 315 °], as a result, active side synchronization crank in side pressure, can compare transmission side
Synchronous angleFast A angles, so that active side module A angles faster than transmission side module on the y axis.
The compensation way is：
Main crank speed is constant, the synchronization crank compensation that each differential seat angle of basis and main crank provides on both sides, i.e. work
Make side main crank synchroballistic and transmission side synchronization crank synchroballistic：
In formula,
KOcomFor active side main crank synchroballistic angle,
KDcomFor transmission side synchronization crank synchroballistic angle,
For main degree in crank angle,
For active side synchronization crank angle,
For transmission side synchronization crank angle,
K is coefficient, 0.7-0.9.
Defining method to main crank and the respective angle ring of synchronization crank is：Each self-defined spacing module closest approach is 45 °.
It can be clearly seen from Fig. 2, the angle of both sides synchronization crank determines module position during side pressure.In normal side pressure
When, the synchronization crank angle of both sides should be consistent substantially.
The way of the technical program is K in fig. 8OcomIn, by original for main crank and the angle of the side synchronization crank
Degree difference sends PLC to along with the angle for needing to adjust, this angle A after being inputted by operating personnel on operation screen.It is original
KDcomKeep constant.I.e.：
So, it is that the angle on target of active side synchronization crank is no longer main in the range of [75 °, 315 °] in main crank angle
Degree in crank angle, butAngle；And the angle on target of synchronous side synchronization crank is still main crank angle.By this
Mode so that active side synchronization crank in side pressure, can A angles faster than transmission side synchronization angle so that work side form
Block A angles faster than transmission side module on the y axis.
Fig. 9 A, B are the SP both sides angle and roughing outlet template record of unused this programme in production.
Figure 10 A, B are to be recorded in production using the SP both sides angle of the present invention program and roughing outlet template, and this makes
It is the mode of fast 2 ° of active side, as a result exports slightly biased active side 1mm of template or so for roughing.
It can be seen that for two blocks of steel of almost identical situation, after adjusting template using the technical program, roughing correct for
The skew of template is exported, is played a good role.
Compared with prior art, the present invention mainly has the advantage that：
1. realize side compression machine adjustment template function from scratch,
Conventional roughing region template is adjusted and can only realized on horizontal roller mill, the implementation of the technical program so that side pressure
Machine there has also been the function of template adjustment.
2. improving the stability of side compression machine outlet device, ensure that rolling line is stable,
In the past when side compression machine outlet template is bad, the equipment such as side compression machine delivery guide, roller-way are often damaged, but by
It is controlled in no means, equipment can only be look at helplessly and be damaged.The technical program make it that template is controllable, avoids slab from hitting
Equipment is hit to cause to damage.
3. adjustment band steel plate type does not sacrifice the type of carving simultaneously
Original function that template adjustment is carried out using horizontal roller mill is this tune to sacrifice premised on strip carves type
Section mode can make belt steel thickness precision be affected.The implementation of the technical program causes the control of template to be separated with carving type control,
With good independence.
The present invention is applied to Baosteel 1580mm hot rolling rolling line SP side compression machines, is actually used through scene, it was demonstrated that this method reaches
, can be with further genralrlization to domestic and international other hot rolling mills using synchronous mode side compression machine, popularizing application prospect to its goal of the invention
It is wide.
Claims (4)
1. a kind of hot rolling synchronous mode side compression machine template method of adjustment, it is to carry out template synchronous adjustment using hot rolling synchronous mode side compression machine
Method,
The hot rolling synchronous mode side compression machine includes active side main crank mechanism and transmission side synchronization crank mechanism, the main crank machine
Structure drives module by mechanical linkage, and drives band plate slab to be moved in vertical direction, i.e. band plate slab traffic direction,
The synchronization crank mechanism drives module by mechanical linkage, and drives band plate slab perpendicular to vertical direction, i.e. band
The transverse movement of plate slab traffic direction,
When the synchronous mode side compression machine is in holding state, main crank mechanism is creeped with given speed at a slow speed, synchronization crank
Mechanism is still in 0 degree,
Characterized in that,
High-speed starting condition meets, when band plate slab brings into operation, PLC sends high-speed starting instruction, and main crank passes through for the first time
Work 45 degree of starting point when, system sends synch command to main crank mechanism, main crank mechanism start by described even at a slow speed plus
Speed is run to quick；
When 45 degree Jing Guo work starting point of main crank second, synchronization crank mechanism starts by static even acceleration, up to reaching
To the simultaneously and rapidly speed of service with main crank mechanism；
Now, as main crank mechanism and synchronization crank mechanism are not implemented synchronous to the driving angle of module, i.e. cause module in y
When highly inconsistent on direction of principal axis,
In the side pressure idle point of main crank, i.e. main crank angle is [75 °, 315 °] point, to synchronization crank and the angle of main crank
Difference compensates,
That is, main crank speed is constant, and the synchronization crank on both sides each provides additional compensation according to the differential seat angle with main crank, by
This controls template in the horizontal direction, i.e., perpendicular to the deviation with plate slab y-axis direction.
A kind of 2. hot rolling synchronous mode side compression machine template method of adjustment as claimed in claim 1, it is characterised in that
To main crank and the differential seat angle of synchronization crank in the side pressure idle node of each cycle, i.e. not operating point, namely main crank angle
Spend to be compensated in the range of [75 °, 315 °],
As a result, active side synchronization crank is in side pressure, can be than transmission side synchronization angleFast A angles, so that work
Make side form block A angles faster than transmission side module on the y axis, finally make it that both sides synchronization crank angle is consistent, eliminate template deviation.
A kind of 3. hot rolling synchronous mode side compression machine template method of adjustment as claimed in claim 1, it is characterised in that
The compensation way is：
Main crank speed is constant, the synchronization crank compensation that each differential seat angle of basis and main crank provides on both sides, i.e. active side
Main crank synchroballistic and transmission side synchronization crank synchroballistic：
In formula,
KOcomFor active side main crank synchroballistic angle,
KDcomFor transmission side synchronization crank synchroballistic angle,
For main degree in crank angle,
For active side synchronization crank angle,
For transmission side synchronization crank angle,
K is coefficient, 0.7-0.9.
A kind of 4. hot rolling synchronous mode side compression machine template method of adjustment as claimed in claim 1, it is characterised in that
The compensation way is：
Main crank speed is constant, and the synchronization crank on both sides each provides 5-10% compensation according to the differential seat angle with main crank.
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| CN107433286A (en) * | 2016-05-27 | 2017-12-05 | 宝山钢铁股份有限公司 | A kind of template method of adjustment realized using hot rolling synchronous mode heavy side press |
| CN108971235B (en) * | 2017-05-31 | 2020-01-31 | 宝山钢铁股份有限公司 | method for controlling warping and buckling of plate blank of hot rolling synchronous side press |
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| JPH089042B2 (en) * | 1991-08-14 | 1996-01-31 | 新日本製鐵株式会社 | Method and device for setting reduction amount of vertical rolling mill |
| CN2589106Y (en) * | 2002-12-13 | 2003-12-03 | 宝山钢铁股份有限公司 | High side pressure constant width machine synchronous device |
| CN101633002B (en) * | 2008-07-24 | 2011-06-15 | 宝山钢铁股份有限公司 | Method for controlling large lateral pressure of plate blank |
| CN102120224B (en) * | 2010-01-08 | 2012-10-10 | 宝山钢铁股份有限公司 | Control method of automatic deviation correction during rolling of hot continuous rolling mill |
| CN103376768B (en) * | 2012-04-28 | 2016-10-05 | 宝山钢铁股份有限公司 | A kind of heavy side press many equipment coordinations control method |
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