CN104001754B - The anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine and application - Google Patents
The anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine and application Download PDFInfo
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Abstract
The anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine, the transfer roller deflection of coiling machine transfer roller group is arranged, aperture strip width/2 of transmission side flipper guide, the aperture of fore side flipper guide is strip width/2+60mm ~ strip width/2+100mm, while roller-way rotates driven forward band steel, also to band steel produce one point to thrust, make band steel be adjacent to transmission side flipper guide to run, when the complete approaching side guide plate of strip steel head, fore side flipper guide draws close closedown to transmission side flipper guide fast, transmission side flipper guide keeps motionless, the follow-up pinch roll set until strip steel head is nipped.The present invention can reduce the turriform defect of band steel, improve scroll quality, need not repair by rewinding, save manpower and materials, and the present invention transforms less investment to device hardware, only need to carry out angle adjustment to part roller-way, other improvement by amendment software simulating, can be applicable to the coiling machine anti-steel roll tower shaped defect field in the production of various iron and steel.
Description
Technical field
The present invention relates to the control method that a kind of object runs, particularly relate to the control method of the asymmetric flipper guide of a kind of coiling machine be applied in field of steel production, the turriform defect of coil of strip can be prevented.
Background technology
At present, hot rolling line in each steel production enterprise has widely used a kind of coiling machine, coiling machine as a kind of visual plant of hot rolling line, after coiling machine is arranged at mm finishing mill unit, for last procedure of hot continuous rolling production line, the finished product hot-strip of rolling is rolled into coil of strip.Coiling machine under prior art mainly comprises roller-way, flipper guide, pinch roll, three capital equipments such as Wrapping Roll and reel, also comprises some auxiliary taking-up equipments in addition.Wherein band steel is delivered to coiling machine by mm finishing mill unit by roller-way primary responsibility, flipper guide Main Function is centering band steel, the Main Function of pinch roll stings the steel stage at head to apply certain clamping force to band steel, first time flexural deformation is implemented to it simultaneously, finally at afterbody coil ing one, stable tension force is applied to band steel, to ensure good scroll quality, and some auxiliary taking-up equipments such as Wrapping Roll help band steel to bend, and make band steel tightly be wound around coiling, wherein reel is one of nucleus equipment of coiling machine, after band steel is wound around, forward direction tension force is applied to it, to guarantee that scroll is up-to-standard.
But, produce through long coil of strip, field worker finds, coiling machine under prior art is very easy to produce turriform defect in the curly course of its coil of strip, as shown in Figure 1, turriform defect is exactly the open defect that the inner ring volume layer of coil of strip is protruded to side, protrude to fore side and be fore side turriform defect, protrude to transmission side and be transmission side turriform defect, and user generally has very harsh requirement to inner ring turriform defect, if the coil of strip that turriform defect occurs exceeds the inner ring turriform that user requires, rewinding repairing can only be carried out when finishing procedure, not only cause the loss of quality cost like this, and extremely consume manpower and materials.
Under prior art in order to prevent turriform defect, take a kind of symmetrical flipper guide control method, as described below:
As shown in Figure 2, flipper guide is made up of transmission side flipper guide and fore side flipper guide, all adopts symmetrical aperture setting, adopts following methods to control:
1., before strip steel head arrives flipper guide, transmission side flipper guide and fore side flipper guide are set in identical aperture symmetrically, i.e. aperture=strip width/the 2+50mm of flipper guide;
2. when strip steel head is by flipper guide, fore side flipper guide and the quick closedown simultaneously of transmission side flipper guide;
3., when tail part of band steel is by after flipper guide, fore side flipper guide and transmission side flipper guide are opened simultaneously.
That is under the prior art, transmission side flipper guide and fore side flipper guide keep equal distance with rolling centerline all the time, namely adopt symmetrical flipper guide control method.
But through the Long-Time Service of execute-in-place workman, we find that the symmetrical flipper guide control method under prior art is used for preventing turriform defect from still there is following problem:
1. before strip steel head arrives flipper guide, the aperture of flipper guide is greater than the width of band steel, and band steel is in free state in flipper guide open range.Band steel can move about to any side, when moving about to fore side, just creates fore side turriform; When moving about to transmission side, just create transmission side turriform.
2. because the quick closedown of flipper guide needs a period of time, during this period of time, unavoidably to produce certain turriform defect.The time that quick closedown needs is longer, and turriform defect is more serious, but the shut-in time is too short, easily again band steel clamp is stopped.
So side guide plate of recoiling machine under prior art adopt symmetrical flipper guide control method still cannot meet the quality requirement of coil of strip, still can produce turriform defect.
Summary of the invention
Turriform defect is easily produced in order to solve when coiling machine batches coil of strip, and flipper guide under prior art adopt symmetrical flipper guide control method also cannot solve the problem of this defect, the invention provides anti-turriform defects controlling method and the application of the asymmetric flipper guide of a kind of coiling machine, quick closedown process mainly for flipper guide is freely moved about in flipper guide open range with band steel, unavoidably to produce the problem of turriform defect, for the different characteristics of slab and thin plate, by the adjustment of offside guide plate center line, and in conjunction with the roller-way that oblique angle is arranged, reach the object reducing turriform defect, concrete scheme of the present invention is as described below:
An anti-turriform defects controlling method for the asymmetric flipper guide of coiling machine, is characterized in that:
1) 80 ~ 120 transfer roller deflections of the steel of contact zones at first of coiling machine transfer roller group are arranged;
2) the transfer roller deflection described in arranges that it is specially, a deflection angle is formed by original 90 ° of normal deflections by between the axis of every root transfer roller and rolling centerline, make coiling machine transfer roller group while rotation driven forward band steel, formed towards side point to thrust, the flipper guide making it be adjacent to this side run;
The angle of deflection angle is larger, and thrust is laterally larger.
3) to carry out adjustment as follows for offside guide plate center line:
3.1) deflection arranges that the transfer roller of the coiling machine transfer roller group of roller-way is to transmission side flipper guide deflection;
3.2) arrange the aperture of transmission side flipper guide, namely the distance of medial margin distance rolling centerline is strip width/2;
3.3) aperture of setting operation side flipper guide, namely the distance of medial margin distance rolling centerline is (strip width/2)+60mm ~ (strip width/2)+100mm;
3.4) when the roller-way of coiling machine transfer roller group being with the head of steel to run to arrive deflection to arrange, roller-way while rotation driven forward band steel, also to band steel produce one point to thrust, make band steel be adjacent to the operation of transmission side flipper guide;
3.5) when the complete approaching side guide plate of strip steel head, fore side flipper guide draws close closedown to transmission side flipper guide fast, and transmission side flipper guide keeps motionless, the follow-up pinch roll set until strip steel head is nipped.
According to the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention, it is characterized in that, the angle of described deflection angle is 2 ~ 10 °.
According to the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention, it is characterized in that, described fore side flipper guide draws close closedown to transmission side flipper guide fast, and its distance of drawing close closedown is 60mm ~ 100mm, corresponding with the initial placement distance of fore side flipper guide.
An application for the anti-turriform defect of the asymmetric flipper guide of coiling machine, based on above-mentioned control method, its applying step is as described below:
1) be with steel to nip the frame of mm finishing mill unit, pressure checking device detects that frame roll-force changes, and finish rolling basic automatization computer judges that frame stings steel, and will sting steel signal and be uploaded to upper control machine;
2) upper control machine obtain frame sting steel signal after, what be handed down to coiling machine according to the band target thickness of steel and width batches basic automatization computer;
3) batch basic automatization computer to judge according to the thickness of band steel, when thickness is between 5mm ~ 8mm, adopt the anti-turriform defects controlling method of the asymmetric flipper guide of coiling machine;
4) basic automatization computer calculates transmission side flipper guide aperture setting value=strip width/2 according to strip width are batched, transmission side flipper guide oil cylinder is controlled by the servo system of transmission side flipper guide, make the actual aperture of transmission side flipper guide arrive setting value, be built in in-oil cylinder position sensor and detect the physical location of transmission side flipper guide and feed back to and batch basic automatization computer;
5) basic automatization computer aperture setting value=(strip width/2)+60mm ~ (strip width/2)+100mm according to strip width calculating operation side flipper guide is batched, by the servo system control operation side flipper guide oil cylinder of fore side flipper guide, make the actual aperture of fore side flipper guide arrive setting value, be built in in-oil cylinder position sensor and detect the physical location of fore side flipper guide and feed back to and batch basic automatization computer;
6) when the band steel checkout gear being installed on flipper guide outlet detects strip steel head, batch basic automatization computer and judge that strip steel head passes through flipper guide, aperture setting value=strip width/2 of transmission side flipper guide are calculated according to strip width, so the aperture of transmission side flipper guide is motionless, batch aperture setting value=strip width/2 of basic automatization computer according to strip width calculating operation side flipper guide, by the servo system control operation side flipper guide oil cylinder of fore side flipper guide, the actual aperture of fore side flipper guide is made to arrive setting value, namely fore side flipper guide draws close closedown to transmission side flipper guide fast,
(7) when the band steel checkout gear being installed on flipper guide outlet detects tail part of band steel, batch basic automatization computer and judge that tail part of band steel passes through flipper guide, aperture setting value=strip width/2 of transmission side flipper guide are calculated according to strip width, so transmission side flipper guide still keeps aperture motionless, batch basic automatization computer aperture setting value=(strip width/2)+60mm ~ (strip width/2)+100mm according to strip width calculating operation side flipper guide, by the servo system control operation side flipper guide oil cylinder of fore side flipper guide, the actual aperture of fore side flipper guide is made again to arrive setting value, namely fore side flipper guide is opened fast,
(8) after above step completes, strip coiling operation terminates, and waits for the band steel that next ripple is secondary.
The anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention and application is used to obtain following beneficial effect:
1. the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention and application can reduce the turriform defect of heavy gauge steel strip, improve scroll quality greatly, need not repair by rewinding, greatly save manpower and materials;
2. the asymmetric flipper guide of a kind of coiling machine of the present invention anti-turriform defects controlling method and application to device hardware transformation less investment, only need to carry out angle adjustment to part roller-way, and other improvement can pass through amendment software simulating, but the excellent preventing turriform defect realized.
Accompanying drawing explanation
Fig. 1 is the concrete schematic diagram that the curling steel ring of coiling machine forms turriform defect;
Fig. 2 is the concrete schematic diagram of the symmetrical flipper guide control method under prior art;
Fig. 3 is the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention and the concrete schematic diagram of application;
Fig. 4 is the concrete schematic diagram that the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention and the transfer roller deflection of application are arranged;
Fig. 5 is the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention and the structure chart of application.
Detailed description of the invention
Below in conjunction with drawings and Examples, the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention and application are further described.
Embodiment
The present embodiment for being applied to 2050 hot rolling coilers, as shown in Figure 3 and Figure 4, the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine:
1) 80 ~ 120 transfer roller deflections of the steel of contact zones at first 2 of coiling machine transfer roller group 1 arranged, 2050 hot rolling coilers in the present embodiment are arranged for choosing 100 transfer roller deflections;
2) the transfer roller deflection described in arranges that it is specially, a deflection angle C is formed by original 90 ° of normal deflections by between the axis A of every root transfer roller and rolling centerline B, make coiling machine transfer roller group 1 while rotation driven forward band steel 2, formed towards side point to thrust, the flipper guide making it be adjacent to this side run;
3) to carry out adjustment as follows for offside guide plate center line:
3.1) deflection arranges that the transfer roller of the coiling machine transfer roller group 1 of roller-way is to transmission side flipper guide 3 deflection;
3.2) arrange the aperture of transmission side flipper guide 3, namely the distance of medial margin distance rolling centerline B is strip width/2;
3.3) aperture of setting operation side flipper guide 4, namely the distance of medial margin distance rolling centerline B is (strip width/2)+60mm ~ (strip width/2)+100mm, and in the present embodiment, the aperture of the fore side flipper guide of 2050 hot rolling coilers is strip width/2+100mm;
3.4) when the roller-way of coiling machine transfer roller group 1 being with the head of steel 2 to run to arrive deflection to arrange, roller-way while rotation driven forward band steel, also to band steel produce one point to thrust, make band steel be adjacent to transmission side flipper guide 3 and run;
3.5) when the complete approaching side guide plate of strip steel head, fore side flipper guide 4 draws close closedown to transmission side flipper guide 3 fast, and transmission side flipper guide keeps motionless, until the pinch roll set 5 that strip steel head is nipped follow-up.
The anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention, the angle of described deflection angle C is 2 ~ 10 °, and the angle of deflection angle C is 5 ° in the present embodiment.
Fore side flipper guide 4 draws close closedown to transmission side flipper guide 3 fast, and its distance of drawing close closedown is 100mm, corresponding with the initial placement distance of the fore side flipper guide in the present embodiment.
As shown in Figure 5, the application of the anti-turriform defect of the asymmetric flipper guide of a kind of coiling machine, based on above-mentioned control method, its applying step is as described below:
1) be with steel 2 to nip the frame 6a of mm finishing mill unit 6, pressure checking device 6b detects that frame roll-force changes, and finish rolling basic automatization computer 6c judges that frame stings steel, and will sting steel signal and be uploaded to upper control machine 7;
2) upper control machine 7 obtain frame sting steel signal after, what be handed down to coiling machine according to the band target thickness of steel and width batches basic automatization computer 8;
3) batch basic automatization computer 8 to judge according to the thickness of band steel, when thickness is between 5mm ~ 8mm (2050 hot rolling coilers in the present embodiment are the band steel producing 7mm), adopt the anti-turriform defects controlling method of the asymmetric flipper guide of coiling machine;
4) basic automatization computer 8 calculates transmission side flipper guide 3 aperture setting value=strip width/2 according to strip width are batched, transmission side flipper guide oil cylinder 3b is controlled by the servo system 3a of transmission side flipper guide, make the actual aperture of transmission side flipper guide arrive setting value, be built in in-oil cylinder position sensor 3c and detect the physical location of transmission side flipper guide and feed back to and batch basic automatization computer;
5) basic automatization computer 8 aperture setting value=(strip width/2)+60mm ~ (strip width/2)+100mm according to strip width calculating operation side flipper guide 4 is batched, by the servo system 4a control operation side flipper guide oil cylinder 4b of fore side flipper guide, make the actual aperture of fore side flipper guide arrive setting value, be built in in-oil cylinder position sensor 4c and detect the physical location of fore side flipper guide and feed back to and batch basic automatization computer;
6) when the band steel checkout gear 9 being installed on flipper guide outlet detects strip steel head, batch basic automatization computer 8 and judge that strip steel head passes through flipper guide, aperture setting value=strip width/2 of transmission side flipper guide 3 are calculated according to strip width, so the aperture of transmission side flipper guide is motionless, batch aperture setting value=strip width/2 of basic automatization computer according to strip width calculating operation side flipper guide 4, by servo system (4a) the control operation side flipper guide oil cylinder 4b of fore side flipper guide, the actual aperture of fore side flipper guide is made to arrive setting value, namely fore side flipper guide draws close closedown to transmission side flipper guide fast,
(7) when the band steel checkout gear 9 being installed on flipper guide outlet detects tail part of band steel, batch basic automatization computer 8 and judge that tail part of band steel passes through flipper guide, aperture setting value=strip width/2 of transmission side flipper guide 3 are calculated according to strip width, so transmission side flipper guide still keeps aperture motionless, batch basic automatization computer aperture setting value=(strip width/2)+60mm ~ (strip width/2)+100mm (in the present embodiment, the aperture of the fore side flipper guide of 2050 hot rolling coilers is strip width/2+100mm) according to strip width calculating operation side flipper guide 4, by the servo system 4a control operation side flipper guide oil cylinder 4b of fore side flipper guide, the actual aperture of fore side flipper guide is made again to arrive setting value, namely fore side flipper guide is opened fast,
(8) after above step completes, strip coiling application terminates, and waits for the band steel that next ripple is secondary.
It should be noted that strip width is target strip width herein, or the actual strip width obtained surveyed by the width gage after mm finishing mill unit.
The anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine of the present invention and application can reduce the turriform defect of band steel, great raising scroll quality, need not repair by rewinding, greatly save manpower and materials, and the less investment that the present invention transforms device hardware, only need to carry out angle adjustment to part roller-way, and other improvement can by amendment software simulating, the present invention is applicable to the coiling machine anti-steel roll tower shaped defect field in the production of various iron and steel.
Claims (4)
1. an anti-turriform defects controlling method for the asymmetric flipper guide of coiling machine, is characterized in that:
1) 80 ~ 120 transfer roller deflections of the steel of contact zones at first (2) of coiling machine transfer roller group (1) are arranged;
2) the transfer roller deflection described in arranges that it is specially, a deflection angle (C) is formed by original 90 ° of normal deflections by between the axis (A) of every root transfer roller and rolling centerline (B), make coiling machine transfer roller group (1) while rotation driven forward band steel (2), formed towards side point to thrust, the flipper guide making it be adjacent to this side run;
3) to carry out adjustment as follows for offside guide plate center line:
3.1) deflection arranges that the transfer roller of the coiling machine transfer roller group (1) of roller-way is to transmission side flipper guide (3) deflection;
3.2) arrange the aperture of transmission side flipper guide (3), namely the distance of medial margin distance rolling centerline (B) is strip width/2;
3.3) aperture of setting operation side flipper guide (4), namely the distance of medial margin distance rolling centerline (B) is (strip width/2)+60mm ~ (strip width/2)+100mm;
3.4) when being with the head of steel (2) to run the roller-way arriving the coiling machine transfer roller group (1) that deflection is arranged, roller-way is while rotation driven forward band steel, also to band steel produce one point to thrust, make band steel be adjacent to transmission side flipper guide (3) operation;
3.5) when the complete approaching side guide plate of strip steel head, fore side flipper guide (4) draws close closedown to transmission side flipper guide (3) fast, and transmission side flipper guide keeps motionless, until the pinch roll set that strip steel head is nipped follow-up (5).
2. the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine as claimed in claim 1, is characterized in that, the angle of described deflection angle (C) is 2 ~ 10 °.
3. the anti-turriform defects controlling method of the asymmetric flipper guide of a kind of coiling machine as claimed in claim 1, it is characterized in that, described fore side flipper guide (4) draws close closedown to transmission side flipper guide (3) fast, its distance of drawing close closedown is 60mm ~ 100mm, corresponding with the initial placement distance of fore side flipper guide.
4. an application for the anti-turriform defect of the asymmetric flipper guide of coiling machine, based on claim 1 or claim 2 or control method according to claim 3, its applying step is as described below:
1) steel (2) is with to nip the frame (6a) of mm finishing mill unit (6), pressure checking device (6b) detects that frame roll-force changes, finish rolling basic automatization computer (6c) judges that frame stings steel, and will sting steel signal and be uploaded to upper control machine (7);
2) upper control machine (7) obtain frame sting steel signal after, what be handed down to coiling machine according to the band target thickness of steel and width batches basic automatization computer (8);
3) batch basic automatization computer (8) to judge according to the thickness of band steel, when thickness is between 5mm ~ 8mm, adopt the anti-turriform defects controlling method of the asymmetric flipper guide of coiling machine;
4) basic automatization computer (8) calculates transmission side flipper guide (3) aperture setting value=strip width/2 according to strip width are batched, transmission side flipper guide oil cylinder (3b) is controlled by the servo system (3a) of transmission side flipper guide, make the actual aperture of transmission side flipper guide arrive setting value, be built in in-oil cylinder position sensor (3c) and detect the physical location of transmission side flipper guide and feed back to and batch basic automatization computer;
5) basic automatization computer (8) aperture setting value=(strip width/2)+60mm ~ (strip width/2)+100mm according to strip width calculating operation side flipper guide (4) is batched, by servo system (4a) control operation side flipper guide oil cylinder (4b) of fore side flipper guide, make the actual aperture of fore side flipper guide arrive setting value, be built in in-oil cylinder position sensor (4c) and detect the physical location of fore side flipper guide and feed back to and batch basic automatization computer;
6) when the band steel checkout gear (9) being installed on flipper guide outlet detects strip steel head, batch basic automatization computer (8) and judge that strip steel head passes through flipper guide, aperture setting value=strip width/2 of transmission side flipper guide (3) are calculated according to strip width, so the aperture of transmission side flipper guide is motionless, batch aperture setting value=strip width/2 of basic automatization computer according to strip width calculating operation side flipper guide (4), by servo system (4a) control operation side flipper guide oil cylinder (4b) of fore side flipper guide, the actual aperture of fore side flipper guide is made to arrive setting value, namely fore side flipper guide draws close closedown to transmission side flipper guide fast,
(7) when the band steel checkout gear (9) being installed on flipper guide outlet detects tail part of band steel, batch basic automatization computer (8) and judge that tail part of band steel passes through flipper guide, aperture setting value=strip width/2 of transmission side flipper guide (3) are calculated according to strip width, so transmission side flipper guide still keeps aperture motionless, batch basic automatization computer aperture setting value=(strip width/2)+60mm ~ (strip width/2)+100mm according to strip width calculating operation side flipper guide (4), by servo system (4a) control operation side flipper guide oil cylinder (4b) of fore side flipper guide, the actual aperture of fore side flipper guide is made again to arrive setting value, namely fore side flipper guide is opened fast,
(8) after above step completes, strip coiling operation terminates, and waits for the band steel that next ripple is secondary.
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| CN105817485B (en) * | 2015-01-07 | 2017-10-31 | 宝山钢铁股份有限公司 | A kind of control method to hot rolling reeling scratch defect |
| CN104841723B (en) * | 2015-04-30 | 2017-01-18 | 山东钢铁股份有限公司 | Method for controlling opening and closing of side guide plate of hot rolling strip steel reeling machine |
| CN105013859B (en) * | 2015-07-20 | 2017-03-01 | 北京首钢股份有限公司 | A kind of method reducing coils of hot-rolled steel head turriform |
| CN107433285A (en) * | 2016-05-27 | 2017-12-05 | 宝山钢铁股份有限公司 | A kind of finish rolling outlet heads skew causes the control method for batching steel scrap |
| CN108655190B (en) * | 2018-04-17 | 2020-02-04 | 北京首钢股份有限公司 | Control method and system of side guide plate |
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