• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:NL2004320A
    申请号:NL2004320
    申请日:2010-03-01
    公开日:2010-09-06
    发明作者:Sumitaka Nakatani
    申请人:Kobe Seiko Sho Kobe Steel Kk；
    IPC主号:
    专利说明:

    LIQUID REMOVING DEVICE AND LIQUID REMOVING METHOD FOR STEEL
    BAND
    BACKGROUND OF THE INVENTION
    1. Field of the Invention
    The present invention relates to, in a process ofmanufacturing a flux-cored welding wire including a step ofletting off a coiled steel band (hereinafter, also referredto as a hoop), a step of washing the steel band, and a stepof shaping the steel band into a tubular shape, a liquidremoving device and a liquid removing method desirably forcontinuously removing a wash, which has adhered to thesurface of the steel band, when the washed steel bandtravels to the shaping step.
    2. Description of the Related Art
    The brief overview of a typical process ofmanufacturing a flux-cored welding wire will be describedwith reference to the accompanying figure of Fig. 5. Fig. 5is a block diagram showing the brief overview of the processof manufacturing the flux-cored welding wire.
    First, a steel band (wire) wound around a bobbin is letoff and fed to the manufacturing process (let-off step SI).Rust preventive oil adhering to the fed steel band is washedaway with the shower of liquid, such as cold water or hotwater, and then the liquid is removed by jetting compressed air thereto (degreasing step S2). Then, while the flux iscontinuously fed on the steel band, the steel band isgradually shaped and rolled into a tubular shape by a rollerfor shaping and rolling, to form an original flux-cored wirewith a diameter ranging from about 2.0 to about 6.0 mm(shaping and rolling step S3).
    Then, the original wire is gradually drawn by a drawingdie such that the wire has a predetermined diameter rangingfrom 0.8 to 3.0 mm (drawing step S4). Fat, such as alubricant for wire drawing, which has adhered to the wire inthe drawing step, is removed, and lubricating oil and rustpreventive oil are applied onto the surface of the wire(washing and oiling step S5). Lastly, the welding wiremanufactured as described above is taken up by a bobbin(take-up step S6).
    A method of removing liquid from a steel band accordingto an embodiment of the present invention relates to amethod of removing liquid by washing away the lubricatingoil adhering to the fed steel band with the shower of liquidand then jetting compressed air thereto in the degreasingstep S2.
    Now, a liquid removing nozzle for a hoop according torelated art will be described with reference to theaccompanying figure of Fig. 6. Fig. 6 is a cross-sectionalview showing an embodiment of the liquid removing nozzle for a hoop according to the related art.
    A liquid removing nozzle 22 for a hoop according to therelated art includes a main body 28 and a gas dischargingmember 26. The main body 28 has a path 30 through which aband-like hoop 21 passes, and an intake opening 25 providedat the exit for the hoop 21 and configured to suck theoutside air because of a negative pressure in the path 30.
    The gas discharging member 26 has a gas discharging section27 provided upstream of the main body 28 in a hoop advancedirection and configured to discharge gas toward the hoop 21,to produce the negative pressure in the path 30; and a gassupply port 23 communicating with a discharge opening 24,which is located upstream of the gas discharging section 27in the hoop advance direction and serves as the entrance forthe hoop 21, and also communicating with the gas dischargingsection 27, The path 30 and the discharge opening 24 have aflat box-like shape to match the cross-sectional shape ofthe hoop 21 (see Japanese Registered Utility Model No.
    2515906).
    However, in the process of manufacturing the flux-coredwelding wire, burr, which has been produced by shearing asteel sheet and which extends along both ends in the widthdirection of the hoop, faces upward, and the hoop 21 isgradually shaped and rolled by the roller for shaping androlling while continuously feeding the flux on the hoop 21.
    Owing to this, the liquid removing nozzle 22 for thehoop 21 according to the related art may insufficientlyremove the liquid from the back surface of the burr. Inaddition, the discharge opening 24 serving as the entrancefor the hoop 21 has to be excessively large to prevent thedischarge opening 24 from interfering with the burr.Consequently, the initial object cannot be attained, and theuse amount of gas (air) is still large.
    SUMMARY OF THE INVENTION
    Accordingly, an object of the present invention is toprovide a liquid removing device for a steel band, in theprocess of manufacturing a flux-cored welding wire, thedevice being capable of reducing the air consumption tocontinuously remove the wash adhering to the surface of thesteel band while the washed steel band travels to theshaping step.
    To attain the object, a liquid removing device for asteel band according to an aspect of the present inventionincludes air nozzles respectively including discharge poreportions each having a plurality of micropores arranged in aline. The air nozzles are arranged above and below thetraveling steel band such that air blowing directions of theair nozzles are inclined to a travel direction of the steelband from upper and lower sides, the upper and lower sides facing the travel direction.
    The liquid· removing device for the steel band accordingto the aspect of the present invention uses the air nozzlesrespectively including the discharge pore portions eachhaving the plurality of micropores arranged in a line. Theair blowing directions of the air nozzles are inclined tothe travel direction of the steel band from the upper andlower sides, the upper and lower sides facing the traveldirection. The discharge pore portions do not have to beexcessively large to avoid the interference with the burrextending along both ends in the width direction of thesteel band. Also, the air consumption can be reduced.
    In the aforementioned liquid removing device for thesteel band, the air nozzles may be preferably arranged suchthat the air blowing directions of the air nozzles areinclined to the travel direction of the steel band from theupper and lower sides in a side view of the travel directionand that the air blowing directions are inclined to thetravel direction of the steel band in a plan view of thetravel direction.
    With this device, the air blowing directions of the airnozzles are inclined to the travel direction of the steelband from the upper and lower sides in a side view of thetravel direction, and the air blowing directions areinclined to the travel direction of the steel band in a plan view of the travel direction. Accordingly, the washremaining on the back surface of the burr extending alongthe both ends in the width direction of the steel band canbe further reliably removed.
    In the aforementioned liquid removing device for thesteel band, the air nozzles may be preferably arranged suchthat the air blowing directions of the air nozzles from theupper and lower sides are substantially aligned with oneanother in a plan view of the travel direction of the steelband.
    With this device, the air blowing directions of the airnozzles from the upper and lower sides are substantiallyaligned with one another in a plan view of the traveldirection of the steel band. Accordingly, the washremaining on the back surface of the burr extending alongthe both ends in the width direction of the steel band canbe further reliably removed.
    In the aforementioned liquid removing device for thesteel band, a plurality of sets of the air nozzles may bepreferably arranged along the travel direction of the steelband.
    With this device, the wash remaining on the backsurface of the burr extending along the both ends in thewidth direction of the steel band can be substantiallycompletely removed.
    In the aforementioned liquid removing device for thesteel band, the air nozzle may preferably respectivelyinclude the discharge pore portions each having themicropores, which have a pore diameter ranging from 0.3 to1.0 mm, and the number of which ranges from three to six.
    A liquid removing method for a steel band according toanother aspect of the present invention can be desirablyused for removing a wash, which has adhered to a surface ofthe steel band during washing, in a process of manufacturinga flux-cored welding wire.
    A liquid removing device for a steel band according tostill another aspect of the present invention can bedesirably used for removing liquid from the steel band,which has been fabricated by shearing a steel sheet, thesteel band having burr, which has been produced by shearingthe steel sheet, extends along both ends in a widthdirection of the steel band, and faces upward.
    The liquid removing device for the steel band accordingto the present invention uses the air nozzles respectivelyincluding the discharge pore portions each having theplurality of micropores arranged in a line. Also, the airis blown in the directions inclined to the travel directionof the steel band. Accordingly, the air consumption can beabout one third of the air consumption of the liquidremoving nozzle for a hoop according to the related art. In addition, the noise can be reduced by about 2 dB.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Fig. 1 is a vertically sectioned view showing an airnozzle for removing liquid according to an embodiment of thepresent invention;
    Fig. 2 is a horizontally sectioned view of Fig. 1;
    Fig, 3 is a side view showing a liquid removing devicefor a steel band according to the embodiment of the presentinvention;
    Fig. 4 is a plan view of Fig. 3;
    Fig. 5 is a block diagram showing the brief overview ofa process of manufacturing a flux-cored welding wire; and
    Fig. 6 is a cross-sectional view showing an embodimentof a liquid removing nozzle for a hoop according to relatedart.
    DESCRIPTION OF THE PREFERRED EMBODIMENT
    A liquid removing device for a steel band according toan embodiment of the present invention will be describedwith reference to the accompanying figures of Figs. 1 to 5.Fig. 1 is a vertically sectioned view showing an air nozzlefor removing liquid according to the embodiment of thepresent invention. Fig. 2 is a horizontally sectioned viewof Fig. 1. Fig. 3 is a side view showing a liquid removing device for a steel band according to the embodiment of thepresent invention. Fig. 4 is a plan view of Fig. 3.
    An air nozzle 1 that is used for removing liquid from asteel band according to the embodiment of the presentinvention includes a nozzle section 2 and a case section 3as shown in Figs. 1 and 2. The nozzle section 2 has anozzle-section inner space 5 formed therein. The casesection 3 has a case-section inner space 6 formed therein.The nozzle-section inner space 5 and the case-section innerspace 6 are joined to one another in an air-tight manner ata joint portion 7, thereby forming a pressure equalizingchamber 4 of the air nozzle 1.
    A discharge pore portion 8 is formed at the distal endof the nozzle section 2. The discharge pore portion 8includes a plurality of micropores arranged in a line. Anintake hole 9 is formed at the proximal end of the casesection 3. The pressure of compressed air supplied throughthe intake hole 9 is equalized in the pressure equalizingchamber 4. The compressed air is equally jetted to theoutside through the micropores of the discharge pore portion8. Reference sign 3a is an internal thread for a bolt thatfixes the air nozzle 1 to a holder (described later). Thematerial of the air nozzle 1 may be stainless steel, brass,ceramic, etc. The joined state can be attained at the jointportion 7 by welding, brazing, using an adhesive, etc.
    The micropores of the discharge pore portion 8preferably have a micropore diameter ranging from 0.3 to 1.0mm, and the number of micropores preferably ranges fromabout three to six regarding the liquid removing efficiencyof a wash adhering to a steel band, and also regarding theair consumption. If the micropore diameter of the dischargepore portion 8 is smaller than 0.3 mm, and the number ofmicropores is less than two, the liquid removing efficiencyof the wash is insufficient although the air consumption isgood. If the micropore diameter of the discharge poreportion 8 is larger than 1.0 mm, and the number ofmicropores is seven or more, the air consumption issubstantially equivalent to that of the related art althoughthe liquid removing efficiency of the wash is good.
    Next, a liquid removing device for a steel band, thedevice which uses the air nozzle 1, according to theembodiment of the present invention will be described indetail with reference to Figs. 3 and 4. The air nozzle 1 isarranged in the latter half section in a degreasing device11 that washes away rust preventive oil adhering to a fedsteel band R with the shower of liquid, such as cold wateror hot water.
    In the degreasing device 11, an upper air nozzle la isarranged at an upper side of the steel band R and a lowerair nozzle lb is arranged at a lower side of the steel band R, the upper and lower sides facing the arrowed traveldirection of the steel band R. The upper air nozzle la andthe lower air nozzle lb are arranged such that the airblowing directions thereof are inclined to the arrowedtravel direction of the steel band R from the upper andlower sides.
    In particular, in a side view of the travel directionof the steel band R, as shown in Fig. 3, the air blowingdirections of the upper air nozzle la and the lower airnozzle lb are inclined to the travel direction of the steelband R from the upper and lower sides, the upper and lowersides facing the travel direction, so as to intersect withone another on the path line of the steel band R. In a planview of the travel direction of the steel band R, the airblowing directions are inclined to the travel direction, asshown in Fig. 4.
    In a plan view of the travel direction of the steelband R, the air blowing directions of the upper air nozzlela and the lower air nozzle lb from the upper and lowersides are preferably inclined so as to be substantiallyaligned with one another as shown in Fig. 4. The wording"to be substantially aligned with one another" means thatthe air blowing direction of the upper air nozzle la fromthe upper side and the air blowing direction of the lowerair nozzle lb from the lower side are aligned with one another, with respect to the travel direction of the steelband R, with a· tolerance of about ±5 degrees, as shown inFig. 4.
    The liquid removing device for a steel band accordingto the embodiment of the present invention includes four airnozzles 1 each having a set of the upper air nozzle la andlower air nozzle lb, the four air nozzles 1 being arrangedin the travel direction of the steel band R. The number ofthe air nozzles 1 may preferably range from three to sixalong the travel direction of the steel band R. If thenumber of the air nozzles 1 is less than two, the liquidremoving efficiency of the wash is insufficient although theair consumption is good. If the number of the air nozzles 1is seven or more, the air consumption may be substantiallyequivalent to that of the related art although the liquidremoving efficiency of the wash is good.
    The air nozzles 1 arranged in the travel direction ofthe steel band R are respectively attached to holders 12.
    The holders 12 are fixed to inner wall members 11a of thedegreasing device 11 through fixing members 13. An intakepipe (not shown) connects the intake hole 9 of each of theair nozzles 1 with a compressed-air source (not shown). Asdescribed above, the air blowing directions of the airnozzles 1 are arranged with respect to the arrowed traveldirection of the steel band R in the degreasing device 11.
    The steel band R is fabricated by shearing (slitting) asteel sheet. In a process of manufacturing a flux-coredwelding wire, burr, which has been produced by shearing thesteel sheet and which extends along both ends in the widthdirection of the steel band R, faces upward, and the steelband R is gradually shaped and rolled by a roller forshaping and rolling into a tubular shape while continuouslyfeeding flux on the steel band R.
    The liquid removing device for the steel band Raccording to the embodiment of the present invention usesthe air nozzle 1, which does not have the discharge opening24 (see Fig. 6) serving as the entrance for the hoop 21unlike the liquid removing nozzle 22 for a hoop according tothe related art, but has the discharge pore portion 8 havingthe plurality of micropores arranged in a line. In addition,the air is blown in a manner inclined to the traveldirection of the steel band R. The air consumptionaccording to the embodiment can be about one third of theair consumption of the liquid removing nozzle for a hoopaccording to the related art. Also, the noise can bereduced by about 2 dB.
    Example
    In the actual process of manufacturing a flux-coredwelding wire, the single liquid removing nozzle 22 accordingto the related art shown in Fig. 6 was arranged in the degreasing device. The steel band actually traveled, andthe air consumption required for the removal of the liquidfor the steel band and the noise thereof were measured.Similarly, in the actual manufacturing process, the four airnozzles 1 according to the embodiment of the presentinvention shown in Figs. 1 and 2 were arranged in thedegreasing device as shown in Figs. 3 and 4. The steel bandtraveled under the condition equivalent to the related art,and the air consumption required for the removal of theliquid for the steel band and the noise thereof weremeasured.
    As a result, the air consumption of the liquid removingdevice for the steel band according to the embodiment of thepresent invention was about one third of the air consumptionaccording to the related art under the same air pressure,,and the noise was reduced by about 2 dB, as compared withthe liquid removing nozzle for the hoop according to therelated art.
    As described above, the liquid removing device for thesteel band according to the embodiment of the presentinvention uses the air nozzles including the discharge poreportions each having the plurality of micropores arranged ina line. The air blowing directions of the air nozzles areinclined to the travel direction of the steel band from theupper and lower sides, the upper and lower sides facing the travel direction. The discharge pore portions do not haveto be excessively large to avoid the interference with theburr extending along both ends in the width direction of thesteel band. Also, the air consumption can be reduced.
    With the liquid removing device for the steel bandaccording to the embodiment of the present invention, in aplan view of the travel direction of the steel band R, theair nozzles 1 are arranged on one side of the traveldirection (the side above the travel direction in thefigure) as shown in Fig. 4, to blow the air to the steelband R. However, the liquid removing device for the steelband R of the present invention is not limited thereto. Ina plan view of the travel direction of the steel band R, theair nozzles 1 may be arranged on both sides of the traveldirection (the sides above and below the travel direction inthe figure), to blow the air to the steel band R.
    权利要求:
    Claims (7)
    [1]
    A device for removing fluid for a steel band, comprising: air nozzles or comprising pore portions, each with a plurality of micropores arranged on a line, the air nozzles being arranged above and below the moving steel band, so that air blowing directions of the air nozzles are inclined towards a direction of movement of the steel band from the top and the bottom, with the top and bottom facing the direction of movement.
    [2]
    The liquid removal device for the steel belt according to claim 1, wherein the air nozzles are arranged such that the air blowing directions of the air nozzles towards the moving direction of the steel band are inclined from the top and the bottom in a side view of the moving direction and the air blowing directions are inclined towards the direction of movement of the steel strip in a top view of the direction of movement.
    [3]
    The liquid removal device for the steel strip according to claim 1, wherein the air nozzles are arranged such that the air blowing directions of the top and bottom air nozzles are substantially parallel to each other in a plan view of the direction of travel of the steel strip.
    [4]
    The liquid removal device for the steel strip according to claim 1, wherein a plurality of sets of air nozzles are arranged along the direction of movement of the steel strip.
    [5]
    The liquid removal device for the steel strip according to claim 1, wherein the air nozzles respectively comprise the discharge pore portions with micropores, which have a pore diameter in the range of 0.3 to 1.0 mm, and whose number is in the range of three to six.
    [6]
    A method for removing liquid for a steel strip, the method using the liquid removal device for the steel strip according to claim 1, the method comprising the step of: removing a washing liquid which is washed on the surface of the steel strip during washing has attached, in a manufacturing process of a flux-filled welding wire.
    [7]
    A method for removing liquid for a steel strip, the method using the liquid removal device for the steel strip according to claim 1, wherein the steel strip is the steel strip manufactured by cutting a steel plate, and the steel strip has a burr that is the result of cutting the steel plate, extending along both ends in a width direction of the steel strip, and facing upwards.
    类似技术:
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    同族专利:
    公开号 | 公开日
    NL2004320C2|2012-11-13|
    JP2010201376A|2010-09-16|
    CN101823060A|2010-09-08|
    CN101823060B|2012-10-31|
    KR20100100645A|2010-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN2164327Y|1993-04-28|1994-05-11|谢仲和|Cleaning moisture remover for wire material|
    CN1087665C|1996-03-04|2002-07-17|三菱重工业株式会社|Hot-rolling arrangement|
    ES2355640T3|2004-08-05|2011-03-29|Kabushiki Kaisha Kobe Seiko Sho|DEPOSIT EXTRACTION DEVICE.|CN103411416B|2013-08-23|2015-05-06|宝钢工程技术集团有限公司|Steam drying device|
    CN105344631A|2015-11-26|2016-02-24|法瑞钠（济南）焊接器材有限公司|Cleaning machine for steel belts for flux-cored wires|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2009050982A|JP2010201376A|2009-03-04|2009-03-04|Method of draining liquid on band iron|
    JP2009050982|2009-03-04|
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