CN106001177B - A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method - Google Patents

A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method Download PDF

Info

Publication number
CN106001177B
CN106001177B CN201610371361.6A CN201610371361A CN106001177B CN 106001177 B CN106001177 B CN 106001177B CN 201610371361 A CN201610371361 A CN 201610371361A CN 106001177 B CN106001177 B CN 106001177B
Authority
CN
China
Prior art keywords
roll
strip
bearing
roller
working roll
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610371361.6A
Other languages
Chinese (zh)
Other versions
CN106001177A (en
Inventor
袁辉
高伟
王磊
黄军峰
李晓磊
陈立新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Shougang Co Ltd
Original Assignee
Beijing Shougang Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Shougang Co Ltd filed Critical Beijing Shougang Co Ltd
Priority to CN201610371361.6A priority Critical patent/CN106001177B/en
Publication of CN106001177A publication Critical patent/CN106001177A/en
Application granted granted Critical
Publication of CN106001177B publication Critical patent/CN106001177B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B15/00Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057Coiling the rolled product
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B15/00Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0064Uncoiling the rolled product

Abstract

The present invention relates to a kind of anti-roll fracture rollers of hot-rolled leveling unit, including:At least two support rollers and working roll;At least two support rollers are arranged side by side in two row, and are rotatably arranged on movable pedestal by first bearing component;Working roll is close to be arranged in the lower section of two row support rollers, and working roll is rotatably arranged on by second bearing component on movable pedestal;The bearing block of second bearing component is elastic shaft bearing.A kind of application method of the anti-roll fracture roller of hot-rolled leveling unit is further related to, is included the following steps:By the reel of rolling steel coil to uncoiler, opens coil of strip and strip is penetrated into forward pinch roller;After strip is pushed down by pinch roller, working roll is depressed on the strip between uncoiler and the pinch roller by driving device;When the reel of uncoiler is left in the tail portion of coil of strip innermost circle, driving device lifts working roll.The anti-roll fracture roll structure is reliable, can absorb vibration and impact that supplied materials shape wave is brought, ensures rolling stability, improves strip surface quality and performance.

Description

A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method
Technical field
The present invention relates to technical field of steel rolling, more particularly to the anti-roll fracture roller of a kind of hot-rolled leveling unit and its user Method.
Background technology
Hot-rolled leveling unit is important the mating unit of hot rolling main line, major function be to strip carry out smooth, bundling or Rewinding.Wherein, smooth rolled to the main rolling line of hot rolling using certain elongation percentage (being usually 0.5%-4%) as control parameter And the strip for after cooling down (being cooled to 60 DEG C or less) is rolled.The purpose of skin pass rolling be eliminate yield point elongation, expand it is moulding Range improves processing performance;Improve the mechanical performance and surface quality of strip;Eliminate or reduce turriform.
The specific equipment composition of hot-rolled leveling unit and device structure of domestic each steel mill are not quite similar, but walking beam, open Volume machine, access device, planisher, coiling machine, upper volume trolley, coil stripping car etc. are that basic equipment forms.In recent years, Thin Specs Product development dynamics increases, but is restricted by hot-rolled process itself, and the plate shape of Thin Specs (2.0mm and following) strip is difficult to obtain It preferably controls, needs to improve the defects of shape wave is big, plate shape is bad by skin pass mill group.
Anti-roll fracture roller wear-resisting property in the prior art in skin pass mill group is poor, and structure is not firm enough, resists that strip is counter to be made Ability firmly is limited, and the vibration and impact that supplied materials shape wave can not be overcome to bring cause the rolling of strip to be fluctuated, can not ensure band The surface quality and performance of steel.
Invention content
The present invention provides a kind of anti-roll fracture roller of hot-rolled leveling unit and its application method, solves or part solves The wear-resisting property of skin pass mill group is poor in the prior art, and structure is not firm enough, and the vibration and impact that supplied materials shape wave is brought lead to strip Rolling fluctuation, the technical issues of can not ensureing the surface quality and performance of strip realizes and provides a kind of structure and reliably prevent Volume fracture roller, can effectively absorb the vibration and impact that supplied materials shape wave is brought, ensure rolling stability, improve strip surface quality and The technique effect of performance.
The anti-roll fracture roller of a kind of hot-rolled leveling unit provided by the invention includes:
At least two support rollers are arranged side by side in two row, and are rotatably arranged on movable pedestal by first bearing component On;
Working roll is close to be arranged in the lower section of the two row support rollers, and the working roll is rotated by second bearing component It is arranged on the movable pedestal;The bearing block of the second bearing component is elastic shaft bearing;
Wherein, the bearing of the bearing of the first bearing component and the second bearing component is self-lubricating bearing;It is described Movable pedestal is connect with driving device, and the driving device drives the movable pedestal and the working roll to be depressed into uncoiling On strip between machine and pinch roller, or lifted from the strip.
Preferably, the anti-roll fracture roller includes 4 support rollers, wherein 2 one row of support roller composition, another 2 The support roller forms another row;
The support roller and the working roll are the identical steel rider of diameter;The case hardness of the steel rider is 58-62HRC, 3~4mm of hardness thickness.
Preferably, the first bearing component further includes:Bearing block, gland and end cap;
The bearing block is bolted on the movable pedestal;
The support roller is arranged by the self-lubricating bearing in the bearing block;
The gland and the end cap are fixedly connected with the bearing block.
Preferably, the elastic shaft bearing includes:Wing-shaped bearing, shape of chinese word Ji bearing, studs and spring;
The wing-shaped bearing is bolted on the movable pedestal;
One end of the studs is fixedly connected with the wing-shaped bearing, and the other end is fixedly connected with a nut;It is described Spring is set on the studs, and bottom end resists the nut;The shape of chinese word Ji bearing is pressed on the spring.
Preferably, the second bearing component further includes:Gland and end cap;
The working roll is arranged by the self-lubricating bearing on the shape of chinese word Ji bearing;
The gland and the end cap are fixedly connected with the shape of chinese word Ji bearing.
Preferably, the driving device includes:Fixed frame, swing frame, lifting hydraulic cylinder, traversing hydraulic cylinder;
The lifting hydraulic cylinder is connect with the fixed frame;
Described swing frame one end is hinged on the fixed frame, and the other end is hinged the output of the lifting hydraulic cylinder End;
The traversing hydraulic cylinder is fixedly connected with the swing frame;The movable pedestal is slidably arranged in the swing On frame;
The output end of the traversing hydraulic cylinder is fixedly connected with the movable pedestal, drives the movable pedestal opposite The swing frame sliding.
Preferably, the driving device further includes:Control system, stretches out retract valve, pressure sensor and position at hydraulic valve Displacement sensor;
The hydraulic valve is arranged on the fluid pressure line of the lifting hydraulic cylinder;
The stretching retract valve is arranged on the fluid pressure line of the traversing hydraulic cylinder;
The pressure sensor is used to detect the pressure between the working roll and the strip;
Institute's displacement sensors are used to detect the displacement of the movable pedestal;
The control system is connect with the hydraulic valve, stretching retract valve, pressure sensor and displacement sensor.
A kind of application method of the anti-roll fracture roller of hot-rolled leveling unit provided by the invention, includes the following steps:
By the reel of rolling steel coil to uncoiler, opens the coil of strip and strip is penetrated into forward pinch roller;
After the strip is pushed down by the pinch roller, working roll is depressed into the uncoiler and the folder by driving device It send on the strip between roller;Meanwhile the driving device drives the work roll shifting to keep it synchronous with uncoiler holding;
When the reel of the uncoiler is left in the tail portion of the coil of strip innermost circle, the driving device is by the working roll It lifts.
Preferably, working roll is depressed into the strip between the uncoiler and the pinch roller by the driving device On;Meanwhile the driving device drives the work roll shifting to keep it synchronous with uncoiler holding;Including:
Control system opens hydraulic valve, and lifting hydraulic cylinder drives movable pedestal and the working roll to carry out pressing action;
The control system, which is opened, stretches out retract valve, movable pedestal and the working roll described in traversing Driven by Hydraulic Cylinder into Row it is traversing, the working roll it is traversing synchronous with the traversing holding of the uncoiler;
Pressure sensor detects the pressure value after the working roll pushes, and displacement sensor detects the displacement of the working roll Value.
Preferably, the control system adjusts the aperture of the hydraulic valve, it is 10~15bar to make the pressure value;
The control system adjusts the aperture for stretching out retract valve, makes the transverse moving speed of the working roll and the uncoiling The transverse moving speed of machine is identical.
One or more technical solutions provided herein, have at least the following technical effects or advantages:
1, it is rotatably arranged on movable pedestal, is worked by first bearing component as a result of at least two support rollers Roller is close to be arranged in the lower section of two row support rollers, and is rotatably arranged on movable pedestal by second bearing component, support roller The strip reaction force born with the working roll that strip is in direct contact is disperseed, structure is more reliable;First bearing group and second The bearing of bearing group all using self-lubricating bearing, is not provided with axle envelope, when can effectively avoid roller high speed rotation, common drier oil profit Drier oil caused by sliding mode throws away, drops onto the problem of belt steel surface causes greasy dirt, quality not to conform to, and is also avoided that high-speed and high-temperature will The problem of axle envelope is melted;Working roll uses elastic shaft bearing, and during roller is put into, spring can effectively absorb supplied materials shape wave band The vibration and impact come ensures that rolling stability, structure are more reliable.In this way, efficiently solving skin pass mill group in the prior art Wear-resisting property it is poor, not firm enough the technical problem of structure realizes and provides a kind of structure reliably anti-roll fracture roller, can be effective Vibration and impact that supplied materials shape wave is brought are absorbed, ensures rolling stability, improves the technique effect of strip surface quality and performance.
2, as a result of the pressing time of reasonable setting working roll, it ensure that almost the entire volume band steel capital receives anti-roll disconnected The depressing force of roller is split, recurvation (opposite with the radian direction that coil of strip is original) is formed, coil of strip is prevented to be pulled off;Meanwhile building Zhang Sheng During production, it is effectively relieved due to rolling fluctuation caused by supplied materials shape wave;By the traversing and uncoiler for controlling anti-roll fracture roller Traversing synchronization avoids the strip on reel of uncoiler and the relative friction between working roll that strip is caused to scratch.In this way, effectively solving It has determined the vibration that brings of supplied materials shape wave of skin pass mill group in the prior art and impact causes the rolling of strip to be fluctuated, can not ensure band The technical issues of surface quality and performance of steel, realizes the skin pass rolling stability for effectively improving thin gauge strip, surface matter The technique effect of amount and performance.
Description of the drawings
Fig. 1 is the configuration diagram of hot-rolled leveling unit provided by the invention and anti-roll fracture roller;
Fig. 2 is the front view of anti-roll fracture roller in Fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural front view of support roller and working roll in Fig. 1;
Fig. 5 is the left view of Fig. 4.
(component that each label represents in attached drawing is followed successively by:It is 1 fixed frame, 2 swing frames, 3 lifting hydraulic cylinders, 4 traversing Hydraulic cylinder, 5 movable pedestals, 6 support rollers, 7 working rolls, 8 pinch rollers, 9 uncoilers, 10 coil of strips, 11 bearing blocks, 12 wing-shaped branch Seat, 13 shape of chinese word Ji bearings, 14 self-lubricating bearings, 15 springs, 16 studs)
Specific implementation mode
The embodiment of the present application provides a kind of anti-roll fracture roller of hot-rolled leveling unit and its application method, solves or part The wear-resisting property for solving skin pass mill group in the prior art is poor, and structure is not firm enough, and the vibration and impact that supplied materials shape wave is brought are led The technical issues of causing the rolling of strip to fluctuate, can not ensure the surface quality and performance of strip, realizing a kind of structure of offer can The anti-roll fracture roller leaned on can effectively absorb the vibration and impact that supplied materials shape wave is brought, and ensure rolling stability, improve belt steel surface The technique effect of quality and performance.
Referring to attached drawing 1 and 4, a kind of anti-roll fracture roller of hot-rolled leveling unit provided by the invention includes:At least two supports Roller 6 and working roll 7.
At least two support rollers 6 are arranged side by side in two row, and are rotatably arranged on movable pedestal 5 by first bearing component On.Working roll 7 is close to be arranged in the lower section of two row support rollers 6, and working roll 7 is rotatably arranged on removable by second bearing component On pedestal 5;The bearing block of second bearing component is elastic shaft bearing.
Wherein, the bearing of the bearing of first bearing component and second bearing component is self-lubricating bearing 14;Movable pedestal 5 It is connect with driving device, driving device driving movable pedestal 5 and working roll 7 are depressed into the band between uncoiler 9 and pinch roller 8 On steel, or lifted from strip.
Further, referring to attached Figure 4 and 5, anti-roll fracture roller includes 4 support rollers 6, wherein 2 compositions of support roller 6 one Row, another 2 support rollers 6 form another row;Support roller 6 and working roll 7 are the identical steel rider of diameter;The case hardness of steel rider is 58-62HRC, hardness 3~4mm of thickness, therefore working roll 7 and the surface abrasion resistance of support roller 6 are good.The diameter of 5 rollers is close, Ensure there is no gap between support roller 6 and working roll 7, otherwise cannot effectively work.
Wherein, 4 support rollers 6 of anti-roll fracture roller, it is anti-to have disperseed the strip that the working roll being in direct contact with strip 7 is born Active force, structure are more reliable;All using self-lubricating bearing 14, it is not provided with axle envelope, when can effectively avoid roller high speed rotation, Drier oil caused by common dry oil lubrication mode throws away, drops onto the problem of belt steel surface causes greasy dirt, quality not to conform to, and is also avoided that The problem of high-speed and high-temperature melts axle envelope.
Further, referring to attached drawing 2 and 3, first bearing component further includes:Bearing block 11, gland and end cap;Bearing block 11 It is bolted on movable pedestal 5;Support roller 6 is arranged by self-lubricating bearing in bearing block 11;Gland and end cap It is fixedly connected with bearing block 11.
Further, referring to attached drawing 2 and 3, elastic shaft bearing includes:Wing-shaped bearing 12, shape of chinese word Ji bearing 13, double end spiral shell Column 16 and spring 15;Wing-shaped bearing 12 is bolted on movable pedestal 5;One end of studs 16 and wing-shaped Bearing 12 is fixedly connected, and the other end is fixedly connected with a nut;Spring 15 is set on studs 16, and bottom end resists nut;It is several Font bearing 13 is pressed on spring 15.
Wherein, working roll 7 uses elastic shaft bearing, and during working roll 7 is put into, spring 15 can effectively absorb supplied materials wave The vibration and impact that shape is brought ensure that rolling stability, structure are more reliable.
Further, second bearing component further includes:Gland and end cap;Working roll 7 is arranged by self-lubricating bearing 14 On shape of chinese word Ji bearing 13;Gland and end cap are fixedly connected with shape of chinese word Ji bearing 13.
Further, referring to attached drawing 1, driving device includes:It is fixed frame 1, swing frame 2, lifting hydraulic cylinder 3, traversing Hydraulic cylinder 4;Lifting hydraulic cylinder 3 is connect with fixed frame 1;2 one end of swing frame is hinged on fixed frame 1, and the other end is hinged The output end of lifting hydraulic cylinder 3;Traversing hydraulic cylinder 4 is fixedly connected with swing frame 2;Movable pedestal 5 is slidably arranged in swing On frame 2;The output end of traversing hydraulic cylinder 4 is fixedly connected with movable pedestal 5, drives 5 relative swing frame 2 of movable pedestal Sliding.
Further, driving device further includes:Control system, hydraulic valve stretch out retract valve, pressure sensor and displacement biography Sensor;Hydraulic valve is arranged on the fluid pressure line of lifting hydraulic cylinder 3;It stretches out retract valve and the hydraulic tube in traversing hydraulic cylinder 4 is set On the road;Pressure sensor is used to detect the pressure between working roll 7 and strip;Displacement sensor is for detecting movable pedestal 5 Displacement;Control system is connect with hydraulic valve, stretching retract valve, pressure sensor and displacement sensor.
A kind of application method of the anti-roll fracture roller of hot-rolled leveling unit provided by the invention, includes the following steps:
S1:By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.
S2:After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device Strip on;Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving;It specifically includes:S201:Control System opens hydraulic valve, and lifting hydraulic cylinder 3 drives movable pedestal 5 and working roll 7 to carry out pressing action.S202:Control system Open and stretch out retract valve, it is traversing that traversing hydraulic cylinder 4 drives movable pedestal 5 and working roll 7 to carry out, working roll 7 it is traversing with open The traversing holding of volume machine 9 synchronizes, and the relative friction between strip and working roll 7 on 9 reel of uncoiler is effectively avoided to cause band Steel scratches.S203:Pressure sensor detects the pressure value after working roll 7 pushes, and displacement sensor detects the displacement of working roll 7 Value.
S3:When the reel of uncoiler 9 is left in the tail portion of coil of strip innermost circle, driving device lifts working roll 7.
Further, in 7 course of work of working roll, the control mode of anti-roll fracture roller is to lift liquid with anti-roll fracture roller The pressure difference of 3 rod chamber of cylinder pressure and rodless cavity object in order to control, the pressure being applied on strip can be by adjusting hydraulic valve Opening degree is adjusted, and control system adjusts the aperture of hydraulic valve, and it is 10~15bar to make pressure value.
Control system adjusts the aperture for stretching out retract valve, makes the transverse moving speed of working roll 7 with the transverse moving speed phase of uncoiler 9 Together.Control system is set as the PI adjustment factors of anti-roll fracture roller:Proportionality coefficient be 1.5~2.5, integral coefficient be 12~ 16, dead zone is 30~50, and the output upper limit is 1900~2000, and bottoming is -12~-8.Other control ginsengs of anti-roll fracture roller Number include it is anti-roll fracture roller return to middle position gain be 35~45.
Technical scheme of the present invention is described in detail with reference to the accompanying drawings and examples.
Embodiment one
The hot-rolled leveling unit it is anti-roll fracture roller structure be:
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product;Support roller 6 and working roll 7 are solid construction, and diameter is equal For 200mm, hardness 58HRC;14 model BS2-2214-2CS/VT134 of self-lubricating bearing;First bearing component includes:Commonly Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes:Wing-shaped bearing 12, shape of chinese word Ji Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed 4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps:
S1:By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially: The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.6mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9 Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2:After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device Strip on;Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal 5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis:In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity Object;The pressure being applied on strip is set as 10bar, and the proportionality coefficient of anti-roll fracture roller is set as 2;Integral coefficient is 15;Dead zone It is 40;It is 2000 to export the upper limit;Bottoming is -10;The gain that anti-roll fracture roller returns to middle position is 40;Traversing hydraulic cylinder is stretched The opening degree for going out retract valve is 30%;The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3:When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation Fluctuation that coil of strip shape wave is brought, stable rolling.
Embodiment two
The hot-rolled leveling unit it is anti-roll fracture roller structure be:
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product;Support roller 6 and working roll 7 are solid construction, and diameter is equal For 200mm, hardness 58HRC;14 model BS2-2214-2CS/VT134 of self-lubricating bearing;First bearing component includes:Commonly Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes:Wing-shaped bearing 12, shape of chinese word Ji Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed 4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps:
S1:By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially: The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.6mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9 Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2:After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device Strip on;Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal 5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis:In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity Object;The pressure being applied on strip is set as 11bar, and the proportionality coefficient of anti-roll fracture roller is set as 1.6;Integral coefficient is 13;Extremely Area is 34;It is 1980 to export the upper limit;Bottoming is -11;The gain that anti-roll fracture roller returns to middle position is 37;Traversing hydraulic cylinder The opening degree for stretching out retract valve is 30%;The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3:When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation Fluctuation that coil of strip shape wave is brought, stable rolling.
Embodiment three
The hot-rolled leveling unit it is anti-roll fracture roller structure be:
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product;Support roller 6 and working roll 7 are solid construction, and diameter is equal For 200mm, hardness 58HRC;14 model BS2-2214-2CS/VT134 of self-lubricating bearing;First bearing component includes:Commonly Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes:Wing-shaped bearing 12, shape of chinese word Ji Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed 4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps:
S1:By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially: The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.8mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9 Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2:After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device Strip on;Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal 5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis:In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity Object;The pressure being applied on strip is set as 12bar, and the proportionality coefficient of anti-roll fracture roller is set as 1.7;Integral coefficient is 14;Extremely Area is 38;It is 1950 to export the upper limit;Bottoming is -10;The gain that anti-roll fracture roller returns to middle position is 38;Traversing hydraulic cylinder The opening degree for stretching out retract valve is 30%;The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3:When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation Fluctuation that coil of strip shape wave is brought, stable rolling.
Example IV
The hot-rolled leveling unit it is anti-roll fracture roller structure be:
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product;Support roller 6 and working roll 7 are solid construction, and diameter is equal For 200mm, hardness 58HRC;14 model BS2-2214-2CS/VT134 of self-lubricating bearing;First bearing component includes:Commonly Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes:Wing-shaped bearing 12, shape of chinese word Ji Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed 4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps:
S1:By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially: The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.7mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9 Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2:After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device Strip on;Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal 5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis:In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity Object;The pressure being applied on strip is set as 14bar, and the proportionality coefficient of anti-roll fracture roller is set as 2.2;Integral coefficient is 15;Extremely Area is 45;It is 1920 to export the upper limit;Bottoming is -9;The gain that anti-roll fracture roller returns to middle position is 42;Traversing hydraulic cylinder The opening degree for stretching out retract valve is 30%;The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3:When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation Fluctuation that coil of strip shape wave is brought, stable rolling.
Embodiment five
The hot-rolled leveling unit it is anti-roll fracture roller structure be:
4 support rollers 6 and 1 working roll 7 are at the word arrangement of falling product;Support roller 6 and working roll 7 are solid construction, and diameter is equal For 200mm, hardness 58HRC;14 model BS2-2214-2CS/VT134 of self-lubricating bearing;First bearing component includes:Commonly Bearing block 11, self-lubricating bearing, gland, end cap, the bolt of form.First bearing component includes:Wing-shaped bearing 12, shape of chinese word Ji Bearing 13, self-lubricating bearing 14, end cap, bolt, studs 16, spring 15.The length 102mm of spring 15, outer diameter 38mm, it is interior Diameter 20mm.
Anti-roll fracture roller is installed between 9 reel of uncoiler and entrance pinch roll 8.Wherein, on the right side of 9 reel of uncoiler Fixed frame 1 is set on ground, and lifting hydraulic cylinder 3 and swing frame 2 are mounted on fixed frame 1.Swing frame 2 and lifting liquid It is used between cylinder pressure 3, between swing frame 2 and fixed frame 1 hinged.There is slideway on swing frame 2 and traversing hydraulic cylinder is installed 4.Anti-roll fracture roller is mounted on movable pedestal 5, and movable pedestal 5 can move axially on the slideway of swing frame 2.
The application method of the anti-roll fracture roller of the hot-rolled leveling unit includes the following steps:
S1:By rolling steel coil to the reel of uncoiler 9, opens coil of strip and strip is penetrated forward to pinch roller 8.Specially: The rolling of hot rolling main rolling line and it is offline be cooled to 40 DEG C, thickness 1.9mm, the coil of strip that kind is container plate, be threaded into uncoiler volume 9 Cylinder continues threading forward, after penetrating into entrance bottom pinch roll 8 and being pushed down by top pinch roll, puts into anti-roll fracture roller, strip after Continuous to advance to coiling machine 9, build production, speed of production 300m/min puts into always anti-roll fracture roller in production process.
S2:After strip is pushed down by pinch roller 8, working roll 7 is depressed between uncoiler 9 and pinch roller 8 by driving device Strip on;Meanwhile working roll 7 is traversing keeps it synchronous with the holding of uncoiler 9 for driving device driving.Automated procedures control hydraulic pressure Valve, lifting hydraulic cylinder 3, lifting hydraulic cylinder 3 drive swing frame 2 and then drive movable pedestal 5, the lifting of anti-roll fracture roller, pressure It exerts oneself to be detected by pressure sensor.Control system controls hydraulic valve, traversing hydraulic cylinder 4, and traversing hydraulic cylinder 4 pushes movable pedestal 5 drive anti-roll fracture roller in turn, its transverse shifting, displacement on the slideway of swing frame 2 is made to be detected by displacement sensor.
Following parameter is arranged in control system emphasis:In order to control with the pressure difference of the rod chamber of lifting hydraulic cylinder 3 and rodless cavity Object;The pressure being applied on strip is set as 14.5bar, and the proportionality coefficient of anti-roll fracture roller is set as 2.4;Integral coefficient is 16; Dead zone is 48;It is 1910 to export the upper limit;Bottoming is -8;The gain that anti-roll fracture roller returns to middle position is 44;Traversing hydraulic cylinder Stretching retract valve opening degree be 30%;The opening degree of the stretching retract valve of uncoiler hydraulic cylinder is also 30%.
S3:When 9 reel of uncoiler is left in the tail portion of coil of strip innermost circle, anti-roll fracture roller lifts.
It by above-mentioned application method, puts into before anti-roll fracture roller, bottom pinch roll 8 (is really in line arc with coil of strip Line), the original radian that batches of coil of strip always exists in production.After putting into anti-roll fracture roller, coil of strip can be buffered by recurvation Fluctuation that coil of strip shape wave is brought, stable rolling.
One or more technical solutions provided herein, have at least the following technical effects or advantages:
1, it is rotatably arranged on movable pedestal by first bearing component as a result of at least two support rollers 6, work Make roller 7 to be close to be arranged in the lower section of two row support rollers 6, and be rotatably arranged on movable pedestal 5 by second bearing component, is propped up Support roller 6 has disperseed the strip reaction force that the working roll being in direct contact with strip 7 is born, and structure is more reliable;First bearing group And the bearing of second bearing group is not provided with axle envelope all using self-lubricating bearing 14, it is general when can effectively avoid roller high speed rotation Drier oil caused by logical dry oil lubrication mode throws away, drops onto the problem of belt steel surface causes greasy dirt, quality not to conform to, and is also avoided that height The problem of fast high temperature melts axle envelope;Working roll 7 uses elastic shaft bearing, and during working roll 7 is put into, spring 15 can be effective Vibration and impact that supplied materials shape wave is brought are absorbed, ensures that rolling stability, structure are more reliable.In this way, efficiently solving existing The wear-resisting property of skin pass mill group is poor in technology, not firm enough the technical problem of structure, realizes a kind of structure of offer and reliably prevents Volume fracture roller, can effectively absorb the vibration and impact that supplied materials shape wave is brought, ensure rolling stability, improve strip surface quality and The technique effect of performance.
2, as a result of the pressing time of reasonable setting working roll 7, it ensure that almost the entire volume band steel capital receives anti-roll It is broken the depressing force of roller, recurvation (opposite with the radian direction that coil of strip is original) is formed, coil of strip is prevented to be pulled off;Meanwhile it being opened building In production process, it is effectively relieved due to rolling fluctuation caused by supplied materials shape wave;By the traversing and uncoiling for controlling anti-roll fracture roller 9 traversing synchronization of machine avoids the relative friction between strip and working roll 7 on 9 reel of uncoiler that strip is caused to scratch.In this way, Efficiently solving vibration that the supplied materials shape wave of skin pass mill group in the prior art is brought and impact causes the rolling of strip to be fluctuated, can not Ensure strip surface quality and performance the technical issues of, realize effectively improve thin gauge strip skin pass rolling stability, The technique effect of surface quality and performance.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not limited to this hair Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention Protection domain within.

Claims (4)

1. a kind of anti-roll fracture roller of hot-rolled leveling unit, which is characterized in that the anti-roll fracture roller includes:
At least two support rollers are arranged side by side in two row, and are rotatably arranged on movable pedestal by first bearing component;Institute Stating first bearing component includes:Bearing block, gland and end cap;The bearing block is bolted on the movable pedestal On;The support roller is arranged by self-lubricating bearing in the bearing block;The gland and the end cap and the bearing block It is fixedly connected;
Working roll is close to be arranged in the lower section of the two row support rollers, and the working roll is rotated by second bearing component to be arranged On the movable pedestal;The bearing block of the second bearing component is elastic shaft bearing;The elastic shaft bearing includes:Wing Wing shape bearing, shape of chinese word Ji bearing, studs and spring;The wing-shaped bearing is bolted on the movable pedestal On;One end of the studs is fixedly connected with the wing-shaped bearing, and the other end is fixedly connected with a nut;The spring pocket It is located on the studs, bottom end resists the nut;The shape of chinese word Ji bearing is pressed on the spring;The working roll It is arranged on the shape of chinese word Ji bearing by self-lubricating bearing;The second bearing component further includes:Gland and end cap;The pressure Lid and the end cap are fixedly connected with the shape of chinese word Ji bearing;
Wherein, the movable pedestal is connect with driving device, and the driving device drives the movable pedestal and the work It is depressed on the strip between uncoiler and pinch roller as roller, or is lifted from the strip, the driving device includes:It is fixed Frame, swing frame, lifting hydraulic cylinder, traversing hydraulic cylinder;The lifting hydraulic cylinder is connect with the fixed frame;The swing Frame one end is hinged on the fixed frame, and the other end is hinged the output end of the lifting hydraulic cylinder;The traversing hydraulic cylinder It is fixedly connected with the swing frame;The movable pedestal is slidably arranged on the swing frame;The traversing hydraulic cylinder Output end be fixedly connected with the movable pedestal, drive movable pedestal swing frame sliding relatively.
2. anti-roll fracture roller as described in claim 1, which is characterized in that
The anti-roll fracture roller includes 4 support rollers, wherein 2 one row of support roller composition, another 2 support roller compositions Another row;
The support roller and the working roll are the identical steel rider of diameter;The case hardness of the steel rider is 58-62HRC, hardness 3~4mm of thickness.
3. anti-roll fracture roller as described in claim 1, which is characterized in that
The driving device further includes:Control system, stretches out retract valve, pressure sensor and displacement sensor at hydraulic valve;
The hydraulic valve is arranged on the fluid pressure line of the lifting hydraulic cylinder;
The stretching retract valve is arranged on the fluid pressure line of the traversing hydraulic cylinder;
The pressure sensor is used to detect the pressure between the working roll and the strip;
Institute's displacement sensors are used to detect the displacement of the movable pedestal;
The control system is connect with the hydraulic valve, stretching retract valve, pressure sensor and displacement sensor.
4. a kind of application method of the anti-roll fracture roller of hot-rolled leveling unit, the anti-roll fracture roller of hot-rolled leveling unit are wanted for right Seek the anti-roll fracture roller of 1~3 any one of them, which is characterized in that include the following steps:
By the reel of rolling steel coil to uncoiler, opens the coil of strip and strip is penetrated into forward pinch roller;
After the strip is pushed down by the pinch roller, working roll is depressed into the uncoiler and the pinch roller by driving device Between strip on;Meanwhile the driving device drives the work roll shifting to keep it synchronous with uncoiler holding;Control System opens hydraulic valve, and lifting hydraulic cylinder drives movable pedestal and the working roll to carry out pressing action;The control system It opens and stretches out retract valve, movable pedestal and the working roll described in traversing Driven by Hydraulic Cylinder carry out traversing, the working roll It is traversing synchronous with the traversing holding of the uncoiler;Pressure sensor detects the pressure value after the working roll pushes, and displacement passes Sensor detects the shift value of the working roll;The control system adjusts the aperture of the hydraulic valve, and it is 10 to make the pressure value ~15bar;The control system adjusts the aperture for stretching out retract valve, makes the transverse moving speed of the working roll and the uncoiling The transverse moving speed of machine is identical;
When the reel of the uncoiler is left in the tail portion of the coil of strip innermost circle, the driving device lifts the working roll It rises.
CN201610371361.6A 2016-05-30 2016-05-30 A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method Active CN106001177B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610371361.6A CN106001177B (en) 2016-05-30 2016-05-30 A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610371361.6A CN106001177B (en) 2016-05-30 2016-05-30 A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method

Publications (2)

Publication Number Publication Date
CN106001177A CN106001177A (en) 2016-10-12
CN106001177B true CN106001177B (en) 2018-10-16

Family

ID=57091469

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610371361.6A Active CN106001177B (en) 2016-05-30 2016-05-30 A kind of anti-roll fracture roller of hot-rolled leveling unit and its application method

Country Status (1)

Country Link
CN (1) CN106001177B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111604697A (en) * 2020-05-31 2020-09-01 日照宝华新材料有限公司 Control method for transverse folding defect of thin-specification low-carbon steel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2865896Y (en) * 2006-02-24 2007-02-07 宝山钢铁股份有限公司 Deep bending roller of three-roll uncoiler
CN201579305U (en) * 2009-12-10 2010-09-15 中冶南方工程技术有限公司 Deep roll-bending device capable of horizontally moving
CN203316518U (en) * 2013-06-13 2013-12-04 无锡建发机器制造有限公司 High-strength extra-thick wide hot rolling steel plate uncoiling device
CN103935723A (en) * 2014-04-16 2014-07-23 攀钢集团工程技术有限公司 Buffering type bearing seat

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100571349B1 (en) * 2004-06-11 2006-04-17 신형운 Feed roll device
KR100806775B1 (en) * 2006-12-01 2008-02-28 주식회사 디엠씨테크 Uncoiler of single type

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2865896Y (en) * 2006-02-24 2007-02-07 宝山钢铁股份有限公司 Deep bending roller of three-roll uncoiler
CN201579305U (en) * 2009-12-10 2010-09-15 中冶南方工程技术有限公司 Deep roll-bending device capable of horizontally moving
CN203316518U (en) * 2013-06-13 2013-12-04 无锡建发机器制造有限公司 High-strength extra-thick wide hot rolling steel plate uncoiling device
CN103935723A (en) * 2014-04-16 2014-07-23 攀钢集团工程技术有限公司 Buffering type bearing seat

Also Published As

Publication number Publication date
CN106001177A (en) 2016-10-12

Similar Documents

Publication Publication Date Title
US4798071A (en) Seamless tube production
RU2344890C2 (en) Method for increase of rolled-products range of equipment for metal work rolling and equipment designed for this purpose
US4543810A (en) Six-high rolling stand
US2897538A (en) Means for bending the rolls of rolling machines
US7302820B2 (en) Method for changing the configuration of a rolling mill and advanced rolling mill for carrying out said method
CN102581067B (en) Hot-rolled coiler pinch roll controlling method
CN103084452B (en) Cold-bending forming machine for vehicle-mounted high-intensity arc corrugated plate
CN105945071A (en) On-line roller change device and method for finish rolling unit in endless strip production
DE102011052699B4 (en) Winding machine and method for controlling the same
RU2297291C2 (en) Method and apparatus for automatic changing of working, backup and intermediate rolls in single- or multi-stand band rolling mill
CN203076344U (en) High-speed wire rolling guide groove
WO2019105112A1 (en) Roller replacing apparatus and method for rapidly replacing working roller based on roller replacing apparatus
US8302445B2 (en) Roll stand and method for rolling a rolled strip
KR101920584B1 (en) Combined pickling and rolling plant for pickling and rolling metal strips
CN203900115U (en) Strip steel centering set with side guide rolls
CN104043685A (en) Method and device for control of reeling machine pinch roll at the moment of biting
CN1883833A (en) Multi-roller multi-frame reversing cold mill and rolling method therefor
CA2483638C (en) Device for controlling the contact pressure of contact rolls
CN201791803U (en) Upper supporting frame of curve down three-roller coiling machine
MX2013003575A (en) Manufacturing device and manufacturing method for hot-rolled steel strip.
CN101077503A (en) Method for producing large-sized seamless pipeline tube
CN104128391A (en) Method and device for preventing belt steel from being scratched in process of leveling by leveler
CN203875138U (en) High-efficiency low-consumption uncoiler
CN107900110A (en) A kind of think gauge hot-strip batches control method
CN101507988A (en) Multifunctional clamping finisher

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant