CN100357043C - Method and installation for hot-rolling strips using a steckel rolling frame - Google Patents

Method and installation for hot-rolling strips using a steckel rolling frame Download PDF

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Publication number
CN100357043C
CN100357043C CNB2003801060601A CN200380106060A CN100357043C CN 100357043 C CN100357043 C CN 100357043C CN B2003801060601 A CNB2003801060601 A CN B2003801060601A CN 200380106060 A CN200380106060 A CN 200380106060A CN 100357043 C CN100357043 C CN 100357043C
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CN
China
Prior art keywords
band
rolling
rotating cylinder
crop
mill housing
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Expired - Fee Related
Application number
CNB2003801060601A
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Chinese (zh)
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CN1726099A (en
Inventor
H·柯施泰因
H·赖歇尔
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SMS Siemag AG
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SMS Demag AG
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Publication of CN1726099A publication Critical patent/CN1726099A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B21B1/34—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D25/00—Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut
    • B23D25/12—Shearing machines with blades on coacting rotating drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D25/00—Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut
    • B23D25/14—Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut without regard to the exact dimensions of the resulting material, e.g. for cutting-up scrap
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/12—Covers or shieldings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2263/00—Shape of product
    • B21B2263/20—End shape; fish tail; tongue
    • 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
    • B21B37/72—Rear end control; Front end control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/12—Arrangement or installation of roller tables in relation to a roll stand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/008—Heat shields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

Process for hot rolling steel strips comprises cropping the strip using reverse rolling in a Steckel mill (8) using crop shears (20) arranged between a driver (17) and the mill. An Independent claim is also included for a device for hot rolling strips.

Description

Method and apparatus with steckel rolling-mill housing hot-rolled band
Technical field
The present invention relates to be used for particularly a kind of method and apparatus of steel of hot-rolled band, wherein this stocking is rolled in a steckel rolling-mill housing.At this, this band is by reversibly rolling, and is transferred by driving member between the coiling machine in the stove of the both sides on two throughput directions that are placed in the steckel rolling-mill housing respectively.
Background technology
Equipment with steckel rolling-mill housing is for example open by DE19549208A1.According to the prior art, this stocking is rolled into a made-up belt with a plurality of roughing passages and is transported in the steckel-finishing stand by a centre-roller-way then at least one reversing rougher frame.This band is to give the finished product band of setting earlier thickness by finish rolling in a plurality of rolling passes in this steckel-finishing stand.After this this band is cooled off where necessary forcibly, is reeled in a finished product band-devices for taking-up and is sent to other Working position.
Between this pony roughing mill or roller-way and finishing stand, settle crop shears, itself and the corresponding configuration of this roughing unit.By these crop shears, the irregular made-up belt tail end and the head end that produce when roughing are separated.Be right after then after the roughing unit and in the steckel rolling-mill housing, processed by further roughing by the band of crop.
According to this because the operation of rolling produces irregular strap end portion or tongue once more, they will in stove, disturb in the coiling machine be used for winding process wear band (Einfadeln).Especially, be rolled into very thin band and therefore seriously be pressed under the disadvantageous band ligulate structure situation, this will produce negative effect to winding process.During the operation of rolling, the correction of this strip ends is irrealizable in the zone of traditional steckel rolling-mill housing finishing stand.
Disclose a kind of reversible mill by EP0088201B1, wherein settled crop shears at one second finishing stand and reversible coiling machine back with two devices for taking-ups.These crop shears are made up of with the cutter drum top a bottom, and they are driven with the suitable peripheral speed of this stocking speed of service with one.Therefore, this cutter during cutting with the stocking passive movement.Backing roll that is used for hot-rolled band of rotatably support on the cutter drum of bottom is so that obtain the guide function that is used for this hot-rolled band of a relative roller-way equivalence in the zone of crop shears.If this cutter drum is for the driven words of crop process, then this backing roll is rotated downwards by the zone from this tropocal wood around its rotation by this cutter drum with leaving, so that abdicate the position for this cutter effect.Arrive later the operating position of this backing roll again again in complete revolution of this cutter drum.Therefore the function of this cutting and supporting has just realized by the rotation of this cutter drum around its cutter roll shaft.This reversible coiling machine is not a coiling machine in the stove.
Disclose a kind of steckel rolling-mill housing that is used for hot rolling by EP0593398A1, wherein between two heating furnaces that reel machine and a rolling-mill housing, settled one by a driving member and the unit that crop shears are formed.These crop shears comprise the scissors up and down that does not rotate.This scissors has only when this stocking stops and just this strap end portion being cut.Played detrimental effect to strip temperature this essential down time, and strip temperature is necessary in order to make thin thickness of strip.
Summary of the invention
Therefore task of the present invention is, proposes a kind of like this method and a kind of device, can without a doubt and have no time to lose ground to thin especially, heat, band crop by it.
This task solves by method and apparatus according to the invention.Also having described preferred improvement project hereinafter describes.
According to a first aspect of the invention, a kind of method that is used for hot-rolled band is provided, wherein band is rolling by reversible ground in a steckel rolling-mill housing, and in two stoves that are placed in these steckel rolling-mill housing both sides respectively, carry between the coiling machine by driving member, described driving member is positioned between the interior coiling machine of corresponding stove and this steckel rolling-mill housing, wherein band is by crop, and the reversible in the steckel rolling-mill housing rolling during by independent flight crop shears by crop, these crop shears are placed between a driving member and the steckel rolling-mill housing, it is characterized in that: crop shears are rotating cylinder cutter formula crop shears, its have adjustable on, the bottom tool rotating cylinder is to be used for the flying shear band, wherein each cutter rotating cylinder can be regulated between away from the position of this band and a cutting position in the operation of rolling at one, and just is brought on the cutting position when shearing.
According to a second aspect of the invention, a kind of equipment that is used for hot-rolled band is provided, it has a reversible steckel rolling-mill housing, coiling machine in steckel rolling-mill housing both sides are provided with a stove respectively wherein, driving member of corresponding configuration between coiling machine and the steckel rolling-mill housing in stove, and between a driving member and steckel rolling-mill housing, be provided with independent flight crop shears, it is characterized in that: crop shears are rotating cylinder cutter formula crop shears, its have adjustable on, the bottom tool rotating cylinder is to be used for the flying shear band, wherein each cutter rotating cylinder can be regulated between away from the position of this band and a cutting position in the operation of rolling at one, and just is brought on the cutting position when shearing.
Core idea of the present invention is, during the reversible of band in the steckel rolling-mill housing is rolling by the crop shears of a solo hop by crop, these crop shears be positioned in a driving member and/the steckel rolling-mill housing between.The calibration of flight-crop cutting only just can realize by an independent shearing machine in a zone of steckel rolling-mill housing.Such advantage is, particularly the strip ends of the non-rule that when thin thickness of strip, produces or tongue can be excluded in operation of rolling inside and in stove coiling machine or the winding process in the finished product coiling machine can not disturbed.
Because being combined, these crop shears are arranged in the invertible program of steckel milling train, so can be by crop on two band traffic directions by an independent shearing machine.Especially, when the terminal thickness of strip that is rolled when being lower than about 2 millimeters, this corresponding strip ends-its to enter in the stove in the coiling machine or on the direction of coiling machine in this stove and near at crop shears of its driving member of settling previously operation-be provided with by this combination by crop, therefore, this process can be in stove not be had in the coiling machine and is frictionally moved with no waste material ground.
Relate to a flight about crop shears itself and cut (being commonly called as flying shear), therefore during rolling, can keep mill speed ground to a considerable extent by crop.Because the shearing of this flight formula the time does not almost have the generation time loss in cutting, so band seldom is cooled and helps keeping strip temperature in other words.
Because the crop shears of suggestion are installed in the zone of steckel rolling-mill housing and therefore are used in is under the thin band situation, so the shearing machine specification of comparing with known shearing machine in the roughing unit is less.Because these interfering strip ends just form after a plurality of reversible rolling passes in the steckel finishing stand, so crop shears are used to cut small thickness of strip and therefore can be configured quite lightly.
Except one as in DE19549208A1 the disclosed program chain, also can use for example equipment of the program chain of disclosed other modification in DE4009860C2, it has steckel rolling-mill housing and the coiling machine in a stove of combination setting and the crop shears between the driving member roller.Program chain as described herein comprises a CSP (Compact Strip Production) continuous casting installation for casting and the soaking pit with a postposition, wherein with the preformed material of shape along made-up belt length bearing temperature compensation or be heated to rolling temperature.Settle a shearing machine and a rolling-mill housing on the band throughput direction after soaking pit, this rolling-mill housing is assembled by a reversible steckel frame or a tandem-mm finishing mill unit.It can not rolling material be not as crop shears work that this previously mentioned shearing machine is used to pulverize in this program chain.
Preferably use especially in this because low cost of investment the steckel rolling-mill housing as the finish rolling in this program chain-frame situation under, flight crop shears in steckel rolling-mill housing zone just provide a good scheme, and it can be repaired the strip ends of the non-rule that produces and prevent to disturb in the coiling machine this winding process in stove in the operation of rolling.
According to a particularly preferred improvement project, crop shears-it is positioned between a driving member and the steckel rolling-mill housing-be set to rotating cylinder cutter formula crop shears and have a top and following adjustable cutter rotating cylinder be used for flight ground and shear band, wherein these corresponding cutter rotating cylinders-particularly two-be in an operation of rolling away from adjustable between the position of operation band continuously and the clipped position.
The shearing machine of a this form is installed in steckel rolling-mill housing and stove coiling machine or reels in the program route between the heating furnace of machine.Just be brought on the cutting position on the position that between cutter rotating cylinder and band, has big spacing that two cutter rotating cylinders then are being pulled during rolling and in order to shear.Therefore this cutter rotating cylinder is not the sort of near the arrangement of tropocal wood ground during rolling position.The thermic load of this cutter rotating cylinder has been reduced significantly thus.
Because this can also make defective band to the big cutter rotating cylinder spacing of band, for example have a rolling cut (Walzski) or have the band of band ripple, do not have the ground of obstruction and move by shearing machine.By the band that causes with contacting of cutter rotating cylinder up and down the damage of side also avoided completely effectively.
In addition according to an embodiment preferred, this cutter rotating cylinder can rotate from the spacing of band constantly because of this, and therefore the thermic load on this rotating cylinder circumference distributes equably.
Even the cutter rotating cylinder is not to rotate constantly, it also will in time be placed in before implementing this shearing and start and quilt and this window of web velocities synchronization.This shearing machine driving power can keep lower thus.It is unnecessary that this cutter rotating cylinder is accelerated on the window of web velocities in a less corner (generally between 180-270 °) scope, because of that is to be associated with high power of motor.
According to a preferred construction scheme, at rolling run duration, thermal protection shields in the intermediate space that is swung between adjustable cutter rotating cylinder and band.This measure will additionally reduce the thermic load of cutter rotating cylinder.
Preferably, the following one or more backing rolls of thermal protection shielding installing, the band in the operation of rolling is rollably supported between continuous operating period according to this.This in bottom the thermal protection shielding or backplate on corresponding backing roll to firmly and preferably be driven, therefore operation and that be supported continuously band can not be damaged on downside.The driving of this backing roll can from outside-in the outside of this shearing machine housing-realize by a hinge axis.This thermal protection shielding-it is because this high thermic load between the cutter rotating cylinder and will bear high wearing and tearing-be constructed to removable easily by optimal way.They for example similarly are replaced in the scope of a cutter changing.
According to an improvement project of this equipment, the cutter rotating cylinder is cooled from the outside with a kind of cooling medium such as water.In this case, the thermal protection of top shielding is used as water-intercepting and capturing groove, so the cooling water that is used for top cutter rotating cylinder can not contact with this band and this strip temperature just can descend necessarily.Continuously by the run duration of shearing machine, a kind of permanent cooling of this cutter rotating cylinder also is possible at this band.
As preferably, each can be supported on the axle of corresponding cutter rotating cylinder in rotating thermal protection shielding.Because excessive mechanical load is not born in this thermal protection shielding, so in order to adapt to the axle journal diameter of this cutter rotating cylinder, the big bearing with less bearing capacity is enough.
Except this supporting structure of this thermal protection shielding on cutter rotating cylinder axle journal, it is fixed on the shearing machine framework pivotally or also is possible on the guiding lever of the lengthening that is used for the cutter rotating cylinder.
This adjusting on request of cutter rotating cylinder preferably realizes that by the curved bar system that reaches the top of a bottom they are combined according to an improvement project in the shearing machine framework that is arranged on a sealing.This cutter framework bears shearing force and is used as the hinged supporting-point of this cutter rotating cylinder in the guiding lever simultaneously.
Guarantee the accurate position of a dimensionally stable of the cutter rotating cylinder that is used to cut on the position that this curved bar system can stretch at its quilt.Then need less relatively power for this adjusting, because have only this cutter rotating cylinder to be moved.This cutting force just can occur on the terminal location of curved bar.And this terminal location will just arrive before this shearing machine cutter contacts band at once.
This show of thermal protection shielding before shearing can realize therefore being absolutely necessary by curved bar drive unit itself.Also can use discrete hydraulic cylinder, they can realize the operation that can better control at any time.This hydraulically operated advantage is in addition, makes thermal protection shielding to two side deflections, therefore always opposite with the strip ends that is transfused to opposed bell guide that enters the mouth.
This equipment is improved by a special roller-way in addition.This is made of two revolution roller-ways or revolution roller-way unit combination, and they are positioned on the entrance and exit of this shearing machine to be used to carry this band.According to the ribbon motion direction, the roller-way unit that is positioned at cutter rotating cylinder back can freely drop cut crop downwards and also can realize the discharge of crop end without a doubt always to high deflection.In case this has realized that the roller-way unit is then fully turned round that is is turned back on the horizontal level again along identical gyratory directions unceasingly.When this turning course finished, the strip ends that quilt has subsequently been cut head just can be intercepted and captured and be supported to be suitable for continuing to move.
Also suggestion drives the roller of this revolution roller-way unit, independently so that avoid the damage of band downside.Roller drives and can import by the center steering bearing of each unit.The distribution that drives can realize by chain transmission or the spur gear with idler gear.For the revolution driving of this roller-way or roller-way unit can be used a hydraulic motor or the electro-motor with intermediate gearing.
Be reinforced rigidity as also using to the modification of revolution roller-way, can be rotating and to discharge or intercept and capture aspect the strip ends of having been cut head at crop be the guide plate of identical function.
The invention has the advantages that, the strip ends of the non-rule that in the operation of rolling, not only on the band cephalic par but also on its tail end and especially at thin thickness of strip the time, produces or pecker can be excluded and in stove this winding process in the coiling machine or in the finished product coiling machine can not disturbed.These irregular strip ends (taking the lead/magnetic tape trailer) can be corrected by crop by the crop shears of flight during the operation of rolling, so that these strip ends are threaded into coiling machine in this typical stove that is used for steckel-operation of rolling with having no defective, especially in the intercepting and capturing slot of coiling machine roller.
The present invention also comprises the application of the steckel rolling-mill housing of multimachine frame.
Description of drawings
Other details of the present invention, feature and advantage show in the embodiment that describes by accompanying drawing subsequently.It shows:
Fig. 1 schematically shows a steckel rolling-mill housing, has the crop shears between a driving member and this steckel rolling-mill housing,
Fig. 2 schematically shows a traditional pony roughing mill equipment, has rearmounted crop shears and the steckel rolling-mill housing that is connected,
Fig. 3 schematically shows rotating cylinder cutter formula crop shears, has the top regulated and the following cutter rotating cylinder of curved bar drive unit first embodiment,
Fig. 4 schematically shows the crop shears of a Fig. 3, has second embodiment of this curved bar drive unit,
Fig. 5 schematically shows the crop shears of a Fig. 3, has the 3rd embodiment of this curved bar drive unit,
Fig. 6 schematically shows the crop shears of a Fig. 3, has the 4th embodiment of this curved bar drive unit,
Fig. 7 schematically shows crop shears, has one and is used for the device for revolving and driving of the thermal protection shielding of this cutter rotating cylinder by this curved bar drive unit,
Fig. 8 schematically shows crop shears, has a hydraulic gyration drive unit that is used for the thermal protection shielding,
Fig. 9 schematically shows crop shears, has on left surface by rotating revolution roller-way,
Figure 10 schematically shows crop shears, has on right flank by rotating revolution roller-way.
The specific embodiment
The legacy equipment that is used for hot-rolled band shown in figure 2 comprises that at least one reversing rougher frame that is used for a made-up belt of roughing 1 and at least one steckel-finishing stand 2 are used for made-up belt reduced and is the finished product band.Two environment divisions 1,2 interconnect by a delay table 3.This steckel-finishing stand 2 is a reversible four-high mill herein, comprises two heating furnaces 4,5 that reel machine, and wherein this band is reeled and is maintained on the rolling temperature simultaneously.After finishing finish rolling, by an end unit 6, it is herein by a cooling section 6a continuously for this band, and for example a laminar cooling section and an other devices for taking-up 6b constitute.This band is wound as coiled material, is continued processing, for example cold rolling or coating or delivery so that send to.Band throughput direction (arrow) before steckel-finishing stand 2 is gone up and is settled crop shears 7 to be used for the crop made-up belt.These crop shears 7 are according to made-up belt thickness configuration, and this made-up belt thickness can be in roughly 30 millimeters and have a size that is suitable for the essential effect of cutting off of this band accordingly.
Fig. 1 has shown the steckel rolling-mill housing 8 of a single chassis, can but not necessarily be combined and be arranged in the program chain that a Fig. 2 represents.This steckel rolling-mill housing 8 is a reversible four-roll rack in this case equally.Same the present invention uses the steckel rolling-mill housing of multimachine frame.On the direction (seeing the direction of arrow) that product advances, before this reversible steckel frame 8, respectively settle coiling machine 9,10 in the stove with the back.Coiling machine 9,10 is used for this rolled strip being wound into coiled material and constituting from the devices for taking-up 13,14 of this coiled material uncoiling by a stove that has a stove housing 11,12 and one in the stove.The circumference of the coiled material that quilt of with dashed lines 15,16 expressions is reeled.In each stove, settle a coiling machine 17,18 between coiling machine 9,10 and the steckel frame 8 respectively and respectively have two coiling machine rollers; That is on the input side of finishing stand and outlet side, respectively settle a coiling machine.By the stove guider 19a that in stove, settles on the coiling machine 9,10 respectively, b finish soon or unactivated stove in batch that office closes or want wherein that coiling machine opens wide in the indrawn stove.At such coiling machine-for example be between coiling machine 17-and the steckel rolling-mill housing 8 herein, one independent-be positioned on the input side of steckel rolling-mill housing 8 with the crop shears 20 of known made-up belt crop shears (7 in the comparison diagram 2) small scale structures of comparing configuration.Cut crop can be seen off by a suitable gathering-device.
By this shearing machine 20, the end that is in band front in the operation of rolling and back is by crop, that is, do not have the loss of tangible downtime of tropocal wood and strip temperature associated therewith, and this temperature loss meeting hinders roughly the realization of 2 millimeters or littler thin strip thickness.
The application of shearing machine 20 is as described below, wherein other accompanying drawing that also next will explain with reference to rotating cylinder cutter formula crop shears of expression: band for example comes out in the direction operation of coiling machine 9 in stove from reversible steckel frame 8 according to a plurality of rolling passes.The generation of strip ends (pecker) or shape cause essential crop shears, so that have no to realize intrusively wearing band and winding process in the coiling machine in stove.Crop shears are activated that is the cutter drum 28a of Fig. 3-6 for this reason, b closely travelled mutually and rotating speed and corresponding strip-rolling speed suitable.
This device is in order to discharge crop, and turning round roller-way (Fig. 9) 42 in this case will be conditioned.Regulating loop band operation-strip ends forms the tool position that will make the rotary cutter roller and is focused at give the cut point of setting earlier on strip ends.Carry out the crop cutting.Then, cutter drum 28a, b (Fig. 3-6) band that has been separated from each other and cut head again by this can continuous rotating roller-way 42 (Fig. 9) to driving member 17 delivery and do not stop by delivery in the stove in the coiling machine 9.Rolled strip is reeled unceasingly and is arrived position near this driving member until the strip ends of back herein.
Rolled strip just arrives halted state soon and is ready to following rolling pass on opposite that be provided with that is converse direction.
On this time point, the cutter drum 28a of shearing machine 20, b (Fig. 3-6) again mutually near and to rotate with previous opposite direction.Revolution roller-way 43 (Figure 10) is conditioned.Form in this regulating loop band operation-strip ends again and give under the prerequisite of setting earlier, realize the synchronism of cutter drum rotation and tool position and the cut point on strip ends.Be implemented in the crop cutting on the strip ends and see this crop off.Having been cut the band of head is then carrying also there by rolling further on steckel-reversible (milling train) frame direction by roller-way 43 (Figure 10).
In order to make near the frame roller-way 21a this steckel rolling-mill housing 8, the band on the 21b is carried homogenising, is provided with side direction guide structure 22a respectively, b, and they are not limited on the illustrated development length.With crop shears 20 opposite opposed those sides between this steckel rolling-mill housing 8 and second driving member 18, a band measurement mechanism 23 is set, it can be by layout at a regulating loop that is used for regulating this steckel rolling-mill housing 8 or roll seam.Thus obtained in addition numerical value can provide the explanation about the feature of band head and band end, and they can realize the adjusting of crop shears 20, so that for example activate the crop shears 20 of flight according to essential crop length.
Fig. 3-6 has shown rotating cylinder cutter formula crop shears 20 respectively, has by the 24a of curved bar system about in the of, and b is to 27a, and b distinguishes adjustable cutter rotating cylinder 28a up and down, b.It has been described and has been used to regulate cutter rotating cylinder 28a, four different embodiments of the curved bar system driving device 29a-d of b.Four all embodiment-the present invention are not limited to these-common is, the driving of curved bar system from a shearing machine side realize or among the embodiment of Fig. 6 from the top and following the realization.With the transmission of driving moment in other shearing machine side or the cutter rotating cylinder side curved bar system, by the synchronizing shaft 30a that a corresponding size is provided with, b bears.Should be noted that these accompanying drawings have just shown the theory structure of different shearing machine flexible programs.These lever ratios and synthetic thus essential change in angular position then are not to describe entirely truely.
On detail, Fig. 3 has shown a cutter framework 32, and it has a cutter rotating cylinder 28a top and a bottom, and b also has the cutter 33a top and bottom who settles, b thereon.At this cutter rotating cylinder 28a, between the b, band passes through a roller-way 34 by delivery.The 24a of each curved bar system, b pass through the driving moment of a hydraulic operation connecting rod 35 then by the synchronizing shaft 30a of a bottom and upper segment, and b is passed on the other shearing machine side.The 24a of this curved bar system, b by one with synchronizing shaft 30a, the angle lever 36a that b connects, b, push rod 37, other lever 38-39 and guiding lever 40 constitute.
With above-mentioned different, according to Fig. 4,5 and 6 this drive unit 29b, c and d have the driver element of two disconnected connection.In the enforcement organization plan of Fig. 6, this drive unit is realized by two fluid pressure type device for revolving and driving 29d, it acts on the synchronizing shaft 30a between two shearing machine sides respectively, and b is last and pass through this curved bar realization to the cutter rotating cylinder 28a top and bottom, the adjusting of b.
Shown that by Fig. 7-10 these crop shears have thermal protection shielding 41a, b with and the organization plan of device for revolving and driving and the configuration structure and the functional mode of a novel roller- way 42,43.
This thermal protection shielding 41a, b is supported in this cutter rotating cylinder 28a, on the axle of b, has shown in diagram that to be on the state that swings in that is in the operation of rolling.According to the embodiment of Fig. 7, the lever 44a of the 24a of this curved bar system, b act on thermal protection shielding 41a, and that among the b be from the end 45a that band leaves, and on the b, so thermal protection shielding 41a, b is by the 24a of curved bar system, the driving of b and deflection.
In the embodiment of Fig. 8, these drive units are disconnected.For thermal protection shielding 41a, the deflection of b is provided with the driver element 46a of two discrete hydraulic cylinder forms, b.With the 24a of this curved bar system, the b difference, by discrete drive system 46a, the piston rod of b, this thermal protection shielding 41a, b be deflection and help this band to wear band to the left or to the right just.
In order to reduce this cutter rotating cylinder 28a, the abrasive thermic load of b, the cutter rotating cylinder from the outside with water cooling.The bending of thermal protection shielding 41a by the top-the Chao rotating drum shaft recessed curved-form, cooling water then is collected.
Following thermal protection shielding 41b has a preferred driven backing roll 47, band deflection when it can prevent by shearing machine 20 continuous operations.Under by the thermal protection that swung in shielding 41b situation, backing roll 47 and drive unit thereof the one that is combined is being used for the roller-way of band.
This roller-way itself is constituted by two roller- way unit 42,43, and they are positioned in the entrance and exit place of shearing machine framework 32.Such roller- way unit 42,43 is constructed to the irrelevant revolution roller-way of other roller-way and has a center steering bearing 48,49 and four other rollers in this embodiment, but the present invention is not limited thereto.
By Fig. 9 and 10, explain the function of revolution roller-way.At throughput direction band from left to right, its strip ends will be by under the situation of crop, it is positioned at this cutter rotating cylinder 28a this revolution roller-way or this roller-way unit 42-, the back of b-then by horizontal level towards left to upwards revolution, a cut useless part can be dropped away from the share zone by the roller-way that has been turned round.Then, this revolution roller-way further towards left to be brought to again on the horizontal level or as roller 50 by general signal fully turned round representedly, therefore, this back with the band head be supported again.Figure 10 has shown a position of this revolution roller-way or roller-way unit 43 under the crop cutting situation on (the right) backward.Then, implement a complete revolution (Durchschwenken) of this revolution roller-way, therefore the back with the band head be supported again.Just realize that by this revolution roller-way or roller-way unit 43 crop then can not hinder the material that moves continuously again subsequently, but crop can be got rid of from roller-way completely effectively.
The Reference numeral table
1 reversible frame,
2 steckels-finishing stand,
3 delay tables,
4 reel the heating furnace of machine,
5 reel the heating furnace of machine,
6 end units,
The 6a cooling section,
7 made-up belts-crop shears,
8 steckel rolling-mill housing,
Coiling machine in 9 stoves,
Coiling machine in 10 stoves,
11 furnace shells,
12 furnace shells,
13 devices for taking-ups,
14 devices for taking-ups,
The circumference of 15 1 coiled materials,
The circumference of 16 1 coiled materials,
17 driving members,
18 driving members,
19 stove guiders,
20 crop shears,
21 frame roller-ways (21a, b),
22 side direction guide structures (22a, b),
23 band measurement mechanisms,
24 curved bar systems,
25 curved bar systems,
26 curved bar systems,
27 curved bar systems,
28 cutter rotating cylinders (28a, b),
29 drive units (29a-d),
30 synchronizing shafts (30a, b),
31 positions of bearings (31a, b),
32 cutter frameworks,
33 cutters (33a, b),
34 roller-ways,
35 piston rods,
36 curved bars (36a, b),
37 connecting rods,
38 connecting rods,
39 connecting rods,
40 connecting rods,
41 thermal protections shielding (40a, b),
42 can rotating roller-way unit,
43 can rotating roller-way unit,
44 connecting rods,
The end of 45 thermal protections shielding,
46 discrete driver elements,
47 backing rolls,
48 center steering bearings,
49 center steering bearings.

Claims (11)

1. the method that is used for hot-rolled band, wherein this band is rolling by reversible ground in a steckel rolling-mill housing (8), and by driving member (17,18) coiling machine (9 in two stoves that are placed in these steckel rolling-mill housing (8) both sides respectively, 10) carry between, described driving member (17,18) be positioned in coiling machine (9 in the corresponding stove, 10) and between this steckel rolling-mill housing (8), wherein this band is by crop, and the reversible in this steckel rolling-mill housing (8) rolling during by independent flight crop shears (20) by crop, these crop shears (20) are positioned between a driving member (17) and this steckel rolling-mill housing (8)
It is characterized in that: described crop shears (20) are rotating cylinder cutter formula crop shears, it has adjustable upper and lower cutter rotating cylinder (28, b) to be used for the flying shear band, each cutter rotating cylinder (28a wherein, b) can in the operation of rolling, regulate between away from the position of this band and a cutting position at one, and when shearing, just be brought on the cutting position.
2. by the described method of claim 1, it is characterized in that:
In this steckel rolling-mill housing (8), be rolled down to 2 millimeters and littler terminal thickness of strip by the band of crop.
3. the equipment that is used for hot-rolled band, has a reversible steckel rolling-mill housing (8), coiling machine (9 in the both sides of this steckel rolling-mill housing (8) are provided with a stove respectively wherein, 10), coiling machine (9 in stove, 10) with steckel rolling-mill housing (8) between a driving member of corresponding configuration (17,18)
And between a driving member (17) and this steckel rolling-mill housing (8), be provided with independent flight crop shears (20), it is characterized in that: these crop shears (20) are rotating cylinder cutter formula crop shears, it has adjustable upper and lower cutter rotating cylinder (28a, b) to be used for the flying shear band, each cutter rotating cylinder (28a wherein, b) can in the operation of rolling, regulate between away from the position of this band and a cutting position at one, and when shearing, just be brought on the cutting position.
4. by the described equipment of claim 3, it is characterized in that:
Sail row to (28a, b) and in the intermediate space between the band of settling at interval, (41a b) can swing in a thermal protection shielding away from locational cutter rotating cylinder being positioned at each.
5. by the described equipment of claim 4, it is characterized in that:
The thermal protection shielding (41b) of bottom tool rotating cylinder (28b) is provided with at least one backing roll that is used for band (47), and this backing roll can prevent the deflection of band when moving continuously on the state that this thermal protection shielding (41b) swings in.
6. by the described equipment of claim 5, it is characterized in that:
Be provided with a cooling device to cool off each cutter rotating cylinder with a kind of cooling medium, the thermal protection shielding (41a) of the rotating cylinder (28a) of wherein fixing a cutting tool is used as cooling medium simultaneously and intercepts and captures groove and protect this band.
7. by the described equipment of claim 6, it is characterized in that:
(41a, (28a is on axle b) b) to be supported in the corresponding cutters rotating cylinder in each thermal protection that can swing shielding.
8. by each described equipment in the claim 3 to 5, it is characterized in that:
(28a, b) (24a, b-27a b) can deflection between rolling position of being shown and the cutting position that is conditioned by upper and lower curved bar system for the cutter rotating cylinder.
9. by the described equipment of claim 8, it is characterized in that:
(24a, b-27a b) are arranged in the shearing machine framework (32) of a sealing with being combined formula in upper and lower curved bar system.
10. by each described equipment in the claim 3 to 5, it is characterized in that:
Be provided with one and be close to the other roller-way zone of these crop shears (20), being used for can independent rotating roller-way unit (42 by two difference, 43) carry this band by this shearing machine, wherein in order to discharge the crop end, each roller-way unit (42,43) can be from horizontal level deflection, make cut crop can have no the ground of obstruction by this roller-way unit (42,43) freely drop downwards, and then this roller-way unit (42,43) can forward horizontal level at the gyratory directions that keeps the front unceasingly next time.
11., it is characterized in that by the described equipment of claim 3:
Described equipment is used to implement method as claimed in claim 1 or 2.
CNB2003801060601A 2002-12-14 2003-12-10 Method and installation for hot-rolling strips using a steckel rolling frame Expired - Fee Related CN100357043C (en)

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DE102006046702A1 (en) * 2006-10-02 2008-04-17 Siemens Ag Steckel mill with several conveying or working components
DE102006046701A1 (en) * 2006-10-02 2008-04-17 Siemens Ag Method for operating a Steckel mill
DE102008006878A1 (en) * 2008-01-31 2009-08-06 Sms Demag Ag Rotary shear arrangement
CN103826764B (en) * 2011-09-28 2016-01-20 普锐特冶金技术日本有限公司 Equipment of hot rolling
DE102012201418A1 (en) * 2012-02-01 2013-08-01 Sms Siemag Ag Steckel mill
TWI551366B (en) * 2013-12-25 2016-10-01 The use of round steel wire rolling forming thin steel sheet and steel fiber forming method
DE102017221764A1 (en) * 2017-12-04 2019-06-06 Sms Group Gmbh Apparatus and method for cooling a dividing shear in hot strip mills
CN113857552A (en) * 2021-10-15 2021-12-31 四川德胜集团钒钛有限公司 Flying shear

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JP2002346624A (en) * 2002-04-08 2002-12-03 Mitsubishi Heavy Ind Ltd Continuous hot rolling line

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US4494395A (en) * 1982-03-05 1985-01-22 Voest-Alpine Aktiengesellschaft Hot-rolling plant
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CN1087847A (en) * 1992-10-15 1994-06-15 迪宾公司 The composite set of roller pressing and clipper
JPH07314008A (en) * 1994-05-27 1995-12-05 Toshiba Corp Continuous rolling equipment for hot band steel
CN1177528A (en) * 1996-09-17 1998-04-01 Sms舒路曼-斯玛公司 High-speed shearing machine for transversely shearing off rolled band steel
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CN1726099A (en) 2006-01-25
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TWI320725B (en) 2010-02-21
DE10357272A1 (en) 2004-06-24

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