【DESCRIPTION】
【Invention Title】
STEEL STRIP STABILIZING APPARATUS
【Technical Field】
[0001] The present invention relates to a steel strip stabilizing apparatus which dampens vibrations in or corrects the shape (curvature) of strip, and more particularly, provided correspond width such that unit) damping means are movable widthwise direction with regard thus improving vibration properties, correcting properties curvature C-shaped S-resulting enhancements plating quality strip.
【Background Art】
[0002] Demand for zinc) plated strips, enhance corrosion resistance, etc., have desirable aesthetic qualities, particularly used as sheets electronic products automobiles, has rapidly increased, requirements strips also increased.
[0003] Although not shown separate drawing, zinc process is, example, performed by allowing molten be attached surfaces
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strip while the steel is unwound from a pay off reel and passes through snout plating bath in an situ process.
[0004] At this time, gas wiping apparatus (for example, air knife) provided directly above sprays inert or air) onto surface of to properly reduce amount zinc attached strip, thereby controlling thickness strip.
[0005] since various types may be passed bath, widths, thicknesses loads applied shaft of) sink roll are different, depending on type that has stabilizing upper transfer roll, vibrations occur curvature C-shaped S-curvature) phenomenon which curved occurs even though vary with type, width [0006] The occurrence cause interval between non-uniform, thus generate deviation, resulting failure.
[0007] Therefore, although not shown separate drawing, at least one suppressing
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vibrations in the steel strip or correcting shape thereof is disposed between gas wiping apparatus and upper transfer roll.
[0008] For example, an existing stabilizing (“damping apparatus”) dampens (suppresses) plated removes curvature to thus correct of strip, preventing occurrence deviations plating by using a mechanical touch roll contacting spraying onto strip.
[0009] However, case roll, since contact performed state which zinc layer on completely unattached dried), secondary quality defect, such as surface marker may be caused.
[0010] Therefore, non-type mechanism) electromagnetic force, realizes vibration manner corrects has also been used recently.
[0011] explained through FIG. 5A present invention, force problematic that positions unit blocks means) are fixed with respect widthwise direction
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thereof.
[0012] For example, in the case of existing non-contact type steel strip stabilizing apparatus using electromagnetic force, since 5 to 7 damping units (electromagnet blocks) are fixedly disposed per side strip, unit have difficulty controlling position while moving, corresponding various widths strips.
[0013] Therefore, when width a is changed, particularly an edge positioned space gap) between blocks, unstable region shape correcting region) generated discontinuous boundary surface formed.
[0014] That is, portion means which magnetic field not formed, it difficult apply uniform degree force widthwise direction with regard and problems, such as increase vibrations or instability may occur capability reduced at strip.
[0015] apparatus, necessary arrange many possible In consideration maximum currently available plated strips, least seven required reduce interval
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therebetween, such that the steel strip damping capability or shape correcting is not reduced due to formation of discontinuous boundary surface explained above.
[0016] Therefore, since existing stabilizing apparatus needs a lot unit units, facility establishment costs maintenance may be high.
【Disclosure】
【Technical Problem】
[0017] The present invention intended solve above-mentioned drawbacks occurring in related art, and it an object provide which allows means movable prevent from being vibrations increasing edge portion strip, make easy correct resulting enhancement plating quality strip.
[0018] Another aspect formed even when number (blocks) decreased, thus decreasing for facilities apparatus.
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【Technical Solution】
[0019] According to an aspect of the present invention, there is provided a steel strip stabilizing apparatus including: plurality damping means arranged on at least one side undergoing processing in direction towards so as damp vibrations or correct shape strip; and moving unit connected move portion each widthwise with regard corresponding width strip.
[0020] The above may further include support fixed casing, wherein are multistage configuration, configuration unit.
[0021] central disposed traveling center strip, both sides [0022] body part
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disposed on at least one side of the traveling steel strip; and a magnetic field generating pole provided to body part damp vibrations in strip.
[0023] The damping means moving unit may include: screw bar rotatably apparatus casing widthwise direction with regard strip is coupled block connected means; guide while passing through means.
[0024] comprised double bars having different directions central as starting point, when rotates, positioned both sides are close or distant from each other same width; alternately upper lower thereof.
[0025] be allow easily moved liner ring support attached means, driving motor which equipped device controller, edge sensor
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be connected to the device controller.
[0026] The apparatus casing may further provided with a steel strip transfer roll for guiding direction of travel strip.
[0027] In addition, means solving problem does not list all features present invention. Further features, advantages and effects invention will become apparent from following description exemplary embodiments reference attached drawings.
【Advantageous Effects】
[0028] According invention, unit damping are movable in widthwise regard prevent capability or shape correction being reduced at edge strip, amplification vibrations, thus improving plating quality [0029] Additionally, according correcting curvature example, C-shaped S-effectively performed.
[0030] Also, solves existing least an portion even when number (blocks) decreases, decreasing maintenance costs.
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【Description of Drawings】
[0031] Fig. 1 is a schematic view showing the installation state of plating line in steel strip stabilizing apparatus according to present invention.
[0032] 2 perspective [0033] 3 front entire configuration [0034] 4 side 3.
[0035] Figs. 5A and 5B are views for explaining differences operation between an existing [0036] 6 another modified example [0037] 7 from 1.
【Best Mode】
[0038] Hereinafter, detailed descriptions will be provided with reference accompanying drawings.
[0039] First, FIG. illustrates
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corresponding to the width of a steel strip.
[0040] While in following embodiments it is described that strip stabilizing apparatus 1 present invention dampens vibrations 100, which passes through plating bath 110 and plated with zinc, or corrects shape strip, natural should not necessarily only be installed on line but may applied other fields so as suppress strips move continuously.
[0041] For example, there no problem applying continuous surface treatment curvature generated during traveling affect production quality [0042] Also, symmetrically disposed both sides aspects uniform stable vibration damping correction shape.
[0043] Next, shown FIG. 1, zinc for configured such (cold rolled strip) 100 unwound from pay off reel heat-treated via welding machine looper then
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molten zinc (Z) is attached to a surface of the steel strip perform plating while passing through snout and bath 110.
[0044] At this time, gas wiping apparatus air knife) provided directly above sprays inert or air) onto properly reduce amount strip, thereby controlling thickness strip.
[0045] The plated travels via sink roll 112 110, stabilizing 114, an upper transfer 130.
[0046] as shown in FIG. 1, temperature present 110 range about 450-460°C, 100 has various types, widths thicknesses.
[0047] Then, load applied shaft of) 1 varies with type maximum 500 kgf may be both ends roll.
Therefore, when dynamic behavior, such vibrations, occurs, act rotational direction [0048] that passed 114 130, vibrations curvature phenomenon widthwise occur, even though vibration
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curvature phenomenon may differ depending on the type, width or thickness of steel strip, thus causing plating deviations in gas wiping apparatus 120, resulting a failure strip.
[0049] That is, as shown FIG. 1, strip stabilizing 1 present invention configured corresponding to is disposed between 120 and upper transfer roll 130 at an side lower cooling 140 (for example, mist cooler), respectively.
[0050] Resultantly, dampens suppresses vibrations plated 100 prevent occurrence deviations.
[0051] Meanwhile, demand strips with zinc sharply increases, line speed traveling speed) increases facilitate production. Since increase cause be amplified, important.
[0052] For when are decreased corrected, deviation amount decreased, attached widthwise direction thereof controlled, alloying decreased.
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[0053] Meanwhile, the steel strip stabilizing apparatus 1 of present invention, configured corresponding to width strip, is shown in FIGS. 4. Elements associated with device invention will be explained reference numerals tens, while elements plating line hundreds.
[0054] First, as 2 4, may be, for example, include a plurality damping means 10 arranged, toward on at least one side being processed so damp vibrations or correct shape strip; and moving unit 30 connected move portion each widthwise direction regard strip.
[0055] Therefore, detail FIG. 5, correspond moves by using control vibrations, enhance correction capability, advance remove an instable element prevent force capability from reduced due discontinuous boundary surface generated when edge
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of the steel strip is positioned in a space (gap) between damping means units) 10, or so as to prevent vibrations from being increased due an instable shape correction.
[0056] For example, schematic views for comparison existing device and present invention are shown FIGS. 5A 5B.
[0057] That is, FIG. 5A, unit 10’ i.e., 1 (#1) 7 10)) which may have similar structure that 2) arranged widthwise direction with regard unlike invention.
[0058] Therefore, case device, since fixedly difficult move when edge 100 means, force other portions thereof, intensity applied magnetic field see 4) be different each other.
[0059] Eventually, discontinuous boundary surface generated reduction correction capability at portion amplification vibration occurs.
[0060] However, invention, moving side 10b 10c on both sides
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of the central side unit damping means 10a based on center a traveling steel strip move in combination one pair at same moving rate.
[0061] Thus, case present invention, even when width is changed from L1 to L4, since an edge least positioned 10c, influence range magnetic field for may be made uniform widthwise direction with regard strip.
[0062] Eventually, invention includes 10b and 10c that are movable strip, it becomes possible more precisely certainly realize suppression vibrations or shape correction, such as curvature, compared existing device.
[0063] Meanwhile, shown FIGS. 2 4, 10 stabilizing apparatus 1 which realizes vibration correction body part 12, disposed installation environment preferably both sides generating pole 14 provided 12 so damp correct [0064] At this time,
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magnetic field generating pole may be actually formed in an integral type of casing structure.
[0065] Preferably, body part 12 shaped as a “⊏” and having the two poles 14 is fixed to plate damping means support 11, 11 apparatus 2.
[0066] At this time, have shape extended traveling direction steel strip 10, shown FIGS. 1 4, or preferably manufactured non-material, for example, ceramic stainless (SUS) so prevent from being leaked when electromagnetic force generated.
[0067] Meanwhile, stabilizing present invention, although not drawings, 10 provided coil including core member made wound on member.
[0068] For current applied configured by laminating SM45C series sheets silicon configure pole, then covered cover body,
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cover body made of a synthetic resin or stainless steel having no influence on the electromagnetic force such that plated particles other foreign are not held accumulated between coils.
[0069] Alternatively, in strip stabilizing apparatus, magnetic field generating pole may be provided form magnet, as permanent magnet electromagnet.
[0070] At this time, shown FIG. 6, plurality unit damping means 10 arranged vertical direction an extended support 11’ unlike 1, and sensing part 16 10.
[0071] It is course natural case 6 at least portion configured to movable widthwise with regard corresponding width strip.
[0072] In since scale apparatus increases, but (range) correction actually extends, it becomes possible more precisely damp vibrations correct shape [0073] sensor FIGS. 3, eddy current known laser distance sensor, 12 poles 14, 11 sense
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interval (represented by arrow in FIG. 4) between the magnetic field generating poles and steel strip.
[0074] Of course, these sensors may be connected to a device controller C) controlled driven C).
[0075] Next, of present invention shown FIGS. 2 4 6, damping means moving unit 30 which substantially moves is rotatably provided apparatus casing widthwise direction with regard strip, configured include screw bar 34 block 32 body part 12 connected, at least one guide 36 penetrates strip 2.
[0076] At this time, as 4, invention, comprised double bars 34a 34b having different directions central side 10a starting point 5B, coupling mechanism 34c disposed connecting portion 34b, are driving motor 35 horizontally equipped using bracket.
[0077] The coupled blocks 10b (#2)
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damping means 10c (#3) positioned on both sides of the reference 10a are coupled in pairs left and right.
[0078] At this time, moving blocks 32 may be rigidly connected to a skin (no numeral) body part support 11 through bracket 32a.
[0079] Preferably, as shown FIGS. 2 4, screw bar 34 unit 30 according present invention is respectively disposed at upper lower traveling direction steel strip respective blocks.
[0080] Meanwhile, FIG. driving motor 35 equipped apparatus casing preferably electrically device controller C).
[0081] Additionally, more preferably, edge sensor 50 for sensing edges properly provided ends 2.
[0082] Also, proximity sensors 52 actually installed precisely sense even when width W) changed variously 5b, C) 4.
[0083] Therefore,
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changed variously as shown in FIGS. 2 to 4 while referring FIG. 5B, the device of present invention senses such a change, and moves moving side damping means 10b 10c positioned on both sides central 10a except for at same rate through controller (C) that edges steel strip pass center outermost 10c, thus removing discontinuous boundary surface effectively damp vibrations or correct shape strip.
[0084] Preferably, two pair are disposed ratio width) is obtained by upper lower screw bars 34.
[0085] In this regard, if move different widths, magnetic field influence distribution may locally deviate from normal be rather amplified.
[0086] Meanwhile, when double 10 provided column 3 widthwise direction with regard strip) one extended support 11’, units 30 diagonally, configured connection unit means, respectively.
[0087] 2, guide 36
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moving unit 30 penetrating the damping means 10 is provided to body part 12 stably support movement of having a weight in widthwise direction with regard steel strip.
[0088] For example, guide 36 may be bar predetermined diameter, and connected ring shaped block 36a assembled into penetration hole formed at through liner 36b.
[0089] Therefore, 36b present invention move together while moves, such that smoothly factor hindering removed.
[0090] Although not represented drawings by separate reference numeral, screw 34 supporting using bearing block, ring, fixing like.
[0091] Next, strip transfer roll 4 installed traveling portion casing stabilizing apparatus FIG. 1 shown 7.
[0092] 2 form feeding on driving shaft 4a transferring force from motor (shown), or an idle which transferred.
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[0093] It is of course preferable that the steel strip transfer rolls 4 are installed on driving shaft 4a to corresponding traveling speed (line speed) plated while transferring a force.
[0094] Then, roll prevents generation defects, such as scratches surface when passing through apparatus casing 2 contacts 2, regardless whether feeding or guide roll.
[0095] Additionally, allows move constantly maintaining interval between damping means 10 and strip.
【Industrial Applicability】
[0096] According present invention, unit movable prevent capability shape correction from being reduced at least edge portion strip, amplification vibrations remove curvature thus improving quality [0097] Also, invention solves existing problem even number blocks) decreased, decreasing maintenance costs.
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【CLAIMS】
【Claim 1】
A steel strip stabilizing apparatus comprising:
a plurality of steel strip damping means arranged on at least one side of a steel strip undergoing processing in a direction there towards so as to damp vibrations in the steel strip or to correct the shape of the steel strip; and
a damping means moving unit connected to the steel strip damping means to move at least a portion of each of the steel strip damping means in a widthwise direction with regard to the steel strip corresponding to the width of the steel strip.
【Claim 2】
The steel strip stabilizing apparatus of claim 1, further comprising a damping means support fixed to an apparatus casing,
wherein the plurality of steel strip damping means are provided connected to the damping means support in multistage configuration, and at least one of the steel strip damping means is connected to the damping means moving unit.
【Claim 3】
The steel strip stabilizing apparatus of claim 1, wherein the steel strip damping means comprises:
a central side damping means disposed at a traveling center of the steel strip; and
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at least one moving side damping means arranged on both sides of the central side damping means in a widthwise direction with regard to the steel strip and connected to the damping means moving unit.
【Claim 4】
The steel strip stabilizing apparatus of claim 3, wherein the steel strip damping means comprises:
a body part disposed on at least one side of the traveling steel strip; and
at least one magnetic field generating pole provided to the body part to damp the vibration or to correct the shape of the steel strip.
【Claim 5】
The steel strip stabilizing apparatus of any of claims 1 to 4, wherein the damping means moving unit comprises:
a screw bar rotatably provided to the apparatus casing in the widthwise direction with regard to the steel strip and is coupled to a moving block connected to the body part of the steel strip damping means; and
at least one guide provided to the apparatus casing while passing through the body part of the steel strip damping means.
【Claim 6】
The steel strip stabilizing apparatus of claim 5, wherein
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the screw bar is comprised of double screw bars having different screw directions with the central side damping means as a starting point, and when the screw bar rotates, the moving side damping means positioned on both sides of the central side damping means are close to or distant from each other with the same moving width, and
the screw bar is alternately connected to the moving side damping means at upper and lower sides thereof.
【Claim 7】
The steel strip stabilizing apparatus of claim 5, wherein the guide of the damping means moving unit is provided to allow the damping means to be easily moved while passing through a liner ring provided to a guide support block attached to the body part of the steel strip damping means,
a driving motor connected to the screw bar of the damping means moving unit and is equipped in the apparatus casing is connected to a device controller, and a steel strip edge sensor provided on both sides of the apparatus casing is connected to the device controller.
【Claim 8】
The steel strip stabilizing apparatus of claim 2, wherein the apparatus casing is further provided with a steel strip transfer roll for guiding the direction of travel of the steel strip.