WO2011034204A1 - スリット帯板の蛇行防止装置 - Google Patents
スリット帯板の蛇行防止装置 Download PDFInfo
- Publication number
- WO2011034204A1 WO2011034204A1 PCT/JP2010/066473 JP2010066473W WO2011034204A1 WO 2011034204 A1 WO2011034204 A1 WO 2011034204A1 JP 2010066473 W JP2010066473 W JP 2010066473W WO 2011034204 A1 WO2011034204 A1 WO 2011034204A1
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- WIPO (PCT)
- Prior art keywords
- slit
- roll
- slit band
- band plate
- strip
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/006—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only winding-up or winding-off several parallel metal bands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/021—Control or correction devices in association with moving strips
- B21D43/023—Centering devices, e.g. edge guiding
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- 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
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/02—Arrangements for holding, guiding, and/or feeding work during the operation
Definitions
- the present invention relates to a meandering prevention device for a slit strip. More specifically, the present invention relates to a meandering prevention device for a slit band plate used for suppressing the meandering of the band plate and allowing the plate to pass stably, and for suppressing winding deviation of the band plate and winding it stably.
- a slit means dividing a strip in the plate width direction.
- the slit strip means a slit strip and is also called a slit material.
- the present invention is effective at the front end and tail end of the strip where the tension decreases during operation.
- the steel strip is shear cut immediately before the end of coil winding in the cold rolling line, continuous processing line, and slit line of the steel strip.
- the strip plate to which the present invention is applied include a metal strip such as a steel strip and a sheet-like plastic film.
- the nip refers to a contact portion between a transport roll or pinch roll and a strip.
- the roll skew angle refers to the inclination angle of the roll with respect to the transport direction of the strip.
- a case where the outside is directed toward the path center is referred to as an outward skew angle
- a case where the inside is directed toward the path center is referred to as an inward skew angle.
- FIG. 3 shows an example of the inward skew angle.
- Patent Document 1 This is because the strip S to be fed is trimmed with the side trimmer at the end of the plate width, and the center of the plate width is cut with a slitter to divide it into two slit materials S1 and S2, and the separator disk uses a slit gap Is a device that winds the slit materials S1 and S2 with a single winder via a deflector roll.
- the guide means In the hot rolling line the tail end of the steel strip passes through the finishing mill after the tail end of the steel strip passes through the finish rolling mill on the conveying table roller from the finishing mill to the winder.
- Guide plate means such as side guides are used in order to suppress the plate instability phenomenon such as the end being wavy or meandering in the plate width direction.
- a method of forcibly restraining with a guide means such as a side guide is employed in order to hold the tail end of the strip at the center position of the line.
- Patent Document 2 Using a pinch roll that can be adjusted under one pressure (Patent Document 2) This is achieved by installing a pinch roll that can be adjusted by one side of the slit material between the slitter and tension reel (winding machine), and correcting the slit material in the direction away from the center of the line by adjusting the side pressure. To do. According to this, when the center side of the line of each slit material is reduced by one side (partial pressure), a rotational moment acts in the direction in which the slit gap widens. Conversely, when the outside of the line is reduced by one pressure (partial pressure), a rotational moment acts in the direction in which the slit gap is narrowed.
- the separator disk cannot be adjusted sufficiently. Since the slit material is not supported by a pinch roll or the like, when the plate edge hits the separator disk, the slit material is bent in the vertical direction and is easily damaged. If the slit gap is too narrow, the plate ends on both sides of the slit gap are pressed by the separator disk and deformed. On the other hand, if the slit gap is too wide, winding defects and edge irregularities occur. As a result, the line speed cannot be increased.
- the method of suppressing winding deviation by controlling the position of the strip in the line width direction as in (3) to (5) of the background art has the following problems. -Due to the time delay from the upstream to the downstream, a positional deviation in the width direction between the control target and the actual occurs. ⁇ A complex control system is required. ⁇ Even if the winding during steady state is stable, the winding during non-steady state becomes unstable. That is, at the tail end of the slit material after shear cutting corresponding to the outermost periphery of the coil, the tension of the slit material is lost and the behavior becomes unstable, so that the EPC device and the inclined roll cannot be used sufficiently.
- the strip after the slit cannot be stabilized on the center side of the conveyance line without damaging the edge of the strip or using a complicated control system.
- stable threading cannot be performed in an unsteady state such as when the slit material tail end threading after shear cutting.
- the present invention has devised mechanistic (mechanical) meandering prevention means that does not depend on external control.
- the mechanical (mechanical) meandering prevention mechanism has a structure that can be easily adjusted, and the meandering prevention mechanism can be accommodated in, for example, a single roll. It can be used for both slit materials and normal materials (non-slit strips), and the usage can be switched automatically or easily. It was.
- a slit belt plate meandering prevention device that allows slit belt plates S1 and S2 formed by slitting a single full width belt strip S into two strips in a conveying line with a pinch roll, wherein the pinch roll comprises: A lower roll 12 that supports the lower surface of the slit band plate, and an upper roll 11 that contacts the upper surface of the slit band plate and moves the slit band plate toward the center of the line by an outer side pressure or an inward skew angle; And the edge guide 1 which guides the line center side edge of the said slit band plate pinched
- An apparatus for preventing meandering of a slit strip [2]
- the edge guide 1 is made to be movable back and forth, and when the slit strips S1 and S2 are passed through, the edge guide 1 is lowered to the contact position with the lower roll 12 to the center side of the line of the slit strip.
- An apparatus for preventing meandering of a slit strip which guides an edge and retracts to the upper surface of the full-width strip when the full-width strip S is passed through without slitting.
- the edge guide 1, the upper roll 11 coaxially with the upper roll outer diameter large diameter disc 1A than, or the center contact portion of the large-diameter disc 1B 2 and the upper roll meandering preventing device of the slit strip to the upper roll outer diameter and a stepped disc 1B consisting abutment 1B 1 under the same diameter or less in place, in that it has construction features.
- the edge guide 1 in the previous item [2] or the disk portions 1A and 1B 2 of the edge guide in the previous item [3] are configured by a separate ring 1C that is loosely fitted to the roll shaft of the upper roll 11.
- the edge guide 1 is composed of a groove 11A provided on the roll shaft of the upper roll 11 and a separate disk 1D loosely fitted in the groove. Prevention device.
- the edge guide used in the present invention is a center guide in the slit material (a guide on the slit cutting end face side), position control according to the plate width is unnecessary.
- the strip plate edge positioned in the nip and / or in the vicinity of the nip sandwiched by the upper and lower rolls is guided, it is possible to easily ensure the plate rigidity and to prevent the ear from being damaged.
- the present invention can easily allow stable passage. Moreover, both a slit material and a normal material can be passed, and the switching is also easy.
- Schematic front view showing the basic concept of the present invention Schematic perspective view showing problems in the background art
- the schematic perspective view which shows the effect of this invention Schematic plan view showing definition of inward skew angle
- Schematic front view showing an example of the present invention [1] Schematic front view showing an example of the present invention
- Schematic front view showing an example of the present invention Schematic front view of the slit material passing through the present invention
- Schematic sectional view of the slit material of the present invention Schematic cross-sectional view at the time of normal material passage of the present invention
- Schematic front view (partly cross-sectional view) of the slit material passing through the present invention Schematic sectional view of the slit material of the present invention
- Schematic cross-sectional view at the time of normal material passage of the present invention Schematic perspective view showing the meandering prevention device of Example 1 (when slit material is passed)
- Schematic perspective view showing the meandering prevention device of Example 1 (at the time of normal material passage)
- the basic concept of the present invention is as follows.
- the meandering of the slit material is not controlled (feedback control), and the slit material is mechanically (mechanically) moved toward the center of the line.
- One of the mechanical (mechanical) methods for bringing the slit material toward the center of the line is the outer side reduction method. This is a method using a stepped roll in which the roll diameter of the upper pinch roll is increased only on the outer side of the line.
- One-side reduction refers to reduction (partial reduction or partial pressure reduction) applied unevenly in the plate width direction.
- the friction force between the pinch roll and the strip is larger than the friction force of the outer side pressure reduction part, so let's rotate the slit material toward the center of the line.
- the slit material moves mechanically (mechanically) toward the center of the line.
- One of the mechanical (mechanical) methods for bringing the slit material toward the center of the line is a method by inclining the upper roll of the pinch roll inward from the strip conveying direction (that is, inward skew angle). If an inward skew angle is given to the roll, a roll peripheral speed component facing the inside of the line is transmitted to the slit material, so that the slit material mechanically (mechanically) approaches the center of the line.
- an angle within ⁇ 30 ° with respect to the line connecting the roll center and the nip center with respect to the moving direction of the slit band plate with respect to the roll center It is the range of the upstream side and the downstream side in the plate surface. It is located in the nip and / or in the vicinity of the nip sandwiched by the upper and lower rolls so that the plate does not deform even if the slit material is moved to the edge guide and receives a reaction force from the edge guide.
- the feature of the present invention is that an edge guide for restraining the plate edge is provided.
- an external force F that moves toward the center of the line is applied to the slit material by positively unbalancing the roll, and a reaction force that counters this is applied.
- the edge guide provided near the center of the line is used.
- a side guide for guiding the line outer edge of the plate is not used.
- FIG. 2 when the side guide SG is used, there is a case where the ear plate is damaged between the nip and the next nip (FIG. 2A).
- the edge guide 1 provided on the center side of the line of the plate edge located in the vicinity of the nip, the band plates S1 and S2 are sandwiched between the upper roll 11 and the lower roll 12 of the pinch roll, and the plate rigidity is very high. Since it is high, ear damage does not occur (FIG. 2B). In addition, it is preferable that the edge guide restrains the plate edge located in the nip in the nip and / or in the vicinity of the nip from the viewpoint of obtaining higher plate rigidity.
- an inward skew angle may be used as means for applying the external force F to the strips S1 and S2 instead of the one-sided pressure.
- the lower roll is not shown.
- the inward skew angle to which the external force F is applied may be determined in consideration of the reduction force, but is preferably about 10 ° to 30 °.
- the present invention [1] based on the above basic concept is, for example, as shown in FIG. 4 in the case of an outer side pressure, as shown in FIG. Slit material)
- a slit band plate meandering device for passing S1 and S2 through a pinch roll wherein the pinch roll includes a lower roll 12 supporting the lower surface of the band plates S1 and S2, and the band plates S1 and S1.
- An upper roll 11 that abuts on the upper surface of S2 and applies an external force F under the outer side pressure to bring the strips S1 and S2 toward the center of the line, and within the nip of the pinch roll and / or in the vicinity of the nip (note that In the example of FIG. 4, an edge guide 1 for guiding the line center side edge of the strips S1, S2 located in the nip is provided.
- the contact width of the center contact portion of the upper roll is 1 ⁇ 2 or less, preferably 1 ⁇ 4 or less, of the one-pressing contact width of the outer stepped roll that performs the outer one-sided reduction. It is ideal that the center abutment portion of the upper roll is pressed down to the edge as it is closer to the line center side edge of the strips S1 and S2.
- the edge cannot be pressed down due to the restrictions on the installation of the upper roll of the edge and the curvature of the end of the central abutment of the upper roll, the deformation near the plate edge can be kept within the elastic range. Then press down near the edge. Specifically, the vicinity of the edge is a position of about 10 mm from the edge to the inside of the strip. That is, as shown in FIG. 11, the center contact portion of the upper roll is brought into contact with the inside of the slit band plate from the center side edge at a position of about 10 mm or less.
- the width of the edge guide is set to be equal to or smaller than the gap between the two slit plate members while ensuring the strength.
- the pinch roll used for this invention is a thing of the form by which two strip materials are each passed by the both sides of the edge guide provided in the said pinch roll, the pinch roll used for this invention is limited to this. It is not something. Only one of the two slit materials may be passed through only one of the two sides of the edge guide. For example, in FIG. 1, the present invention can be used even when only the slit material S ⁇ b> 1 passes through and the slit material S ⁇ b> 2 does not exist.
- the edge guide is coaxial with the upper roll 11 and has a disk 1A having a diameter larger than the outer diameter of the upper roll 11 by less than twice the thickness, or the upper shows the embodiment configured in stepped disc 1B that by less than twice the thickness than the upper roll outer diameter and the outer diameter and the reduction unit 1B 1 under the same size or less consisting of disk portion 1B 2 Metropolitan large diameter of the roll 11.
- the edge guide is fixed.
- the plate edge is not pressed in the nip, but there is no problem as long as the deformation amount of the plate edge is within the elastic range. It has been confirmed in model experiments that there is no problem.
- the practical machine Since the deformation amount of the plate edge changes depending on the plate thickness, in order to realize a device that reliably prevents meandering for all the plate thicknesses, the practical machine has a configuration in which the vicinity of the central edge portion of the slit material is pressed.
- the model experiment apparatus of the form shown in FIG. 5A (using a pinch roll having a form in which an external force F is applied under the outer side pressure and the line 1A side edge of the slit strip is guided by the disk 1A) is used.
- the belt plate is passed through only one side of the disk 1A, and pinch roll pressure (abbreviated as PR for short) is applied intermittently at that time, and the meandering behavior of the belt plate is measured on the input side and the output side (winding) of the pinch roll. Measured with a meandering meter installed in Totori).
- An example of the result is shown in FIG. According to the meandering meter output chart of FIG. 10, it is clear that the threading plate on the outlet side (winding portion) is stabilized by the PR reduction. In addition, although it varies on the entry side, it can be seen that it is centered by PR reduction.
- the edge guide may be installed in a fixed manner as illustrated in FIGS. 5A and 5B. However, in the case of Type II, the edge guide is not fixed and can be moved forward and backward.
- the edge guide is in contact with the lower roll, the plate edge can be reliably guided.
- the lower edge of the edge guide may be between the upper surface of the slit material and the lower roll surface.
- the edge guide is lowered by its own weight or by a pressing mechanism or the like. For example, as shown in FIG.
- the separation ring or the separation disk may be pushed down with a cylinder having a small roll attached to the tip of the rod.
- the pressing force is reduced so as not to cause deformation or wrinkles on the upper surface of the normal material.
- the outermost periphery of the edge guide that comes into contact with the normal material is made of the same material as the upper roll or an elastic body such as rubber, and the side surface of the edge guide that comes into contact with the edge of the slit material is a wear-resistant material with high hardness.
- the disk portion of the edge guide in FIG. 5 (b) can be moved forward and backward from the fixed type.
- a form constituted by a separate ring 1C loosely fitted on the roll shaft of the upper roll 11 is shown (corresponding to the present invention [4]). Since the separate ring 1C is loosely fitted to the roll shaft of the upper roll 11, when the slit members S1 and S2 are passed through, the self-weight or the pressing mechanism or the like passes through the gap between the plates to the contact position with the lower roll 12. Is lowered to guide the line center side edges of the slit materials S1 and S2 (FIG. 6B), while the normal material S is retracted to the upper surface of the plate (FIG. 6C).
- FIG. 7A, FIG. 7B, and FIG. 7C show a groove portion in which the edge guide is provided on the roll shaft of the upper roll 11. 11A and a separate disk 1D loosely fitted in the groove 11A are shown.
- the implementation target of Example 1 is a slit line of a cold-rolled steel sheet.
- the slit line passes two slit materials S1 and S2 downstream of the shear 20 through the first and second deflector pinch rolls 21 and 22, respectively.
- the first and second tension reels 31 and 32 are wound around in the downward direction.
- the slit material S2 passes through the first deflector pinch roll 21 in parallel with the slit material S1 before entering the second deflector pinch roll 22, but the conveying direction of the slit material S2 remains horizontal there.
- the In this slit line as shown in FIG.
- the first and second deflector pinch rolls 21 and 22 use flat rolls for both the upper and lower rolls.
- Example 1 the 1st and 2nd deflector pinch rolls 21 and 22 were made into the same form as shown in Drawing 6 (a), Drawing 6 (b), and Drawing 6 (c). That is, with respect to the upper roll 11, the roll diameter on the outer side in the line width direction is increased to enable the outer side pressure reduction, and a separate ring 1 ⁇ / b> C that is loosely fitted to the roll shaft of the upper roll 11 is provided as an edge guide according to the present invention.
- both the slit materials S1 and S2 are brought closer to the center of the line by the outer side pressure, and the brought-up plate edges are guided by the separate ring 1C.
- Example 2 The implementation target of Example 2 is the same slit line as the implementation target of Example 1.
- An embodiment of Example 2 is shown in FIGS. 9 (a) and 9 (b).
- the second deflector pinch roll 22 remains the same here, and in the first deflector pinch roll 21, the upper roll 11 is divided into two in the width direction, and is inclined inward as shown in FIG.
- An external force F due to a skew angle can be applied, and a separate ring 1C that is loosely fitted to the roll shaft of the upper roll 11 is provided as an edge guide according to the present invention.
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Abstract
Description
本発明は、操業において張力が低下する帯板の先端や尾端で効果を発揮する。張力が低下する場合の例としては、鋼帯の冷間圧延ライン、連続処理ライン、スリットラインにおいて、コイルの巻取り終了直前で鋼帯をシヤー切断する場合がある。本発明が適用される帯板としては、鋼帯等の金属帯や、シート状のプラスチックフィルムが該当する。
狭幅の帯板を得る方法として、リコイリングラインの巻取機の入側にスリッタを配置し、広幅に圧延された帯板を板幅方向に分割し、それぞれコイル状に巻き取る方法がある。このようなスリットラインに関わる背景技術として、以下のようなものがある。
(1)セパレータディスクによるもの(特許文献1)
これは、送給される帯板Sを、サイドトリマで板幅端部を切り揃え、スリッタで板幅中央部を切断して2条のスリット材S1,S2に分割し、セパレータディスクでスリット隙間を確保しつつ、スリット材S1,S2を、デフレクタロールを介して1台の巻取機で巻き取る装置である。
(2)ガイド手段によるもの
熱延ラインでは、仕上圧延機から巻取機までの搬送テーブルローラ上で、鋼帯の尾端が仕上圧延機を通過した後、張力が無くなることで鋼帯の尾端が波打ったり、板幅方向に蛇行したりといった通板不安定現象がみられるので、これを抑制するために、サイドガイド等のガイド手段が使用されている。同様に、一般の通板ラインでも、ライン中心位置に帯板の尾端を保持するために、サイドガイド等のガイド手段で強制的に拘束する方法が採られる。
(3)EPC(エッジポジションコントロール;Edge Position Control)装置によるもの(特許文献1)
これは、2条のスリット材S1,S2を2台の巻取機で個別に巻き取ることとし、巻取り直前のスリット材S1,S2の板幅端部(エッジ部)の位置をエッジセンサによりそれぞれ検出し、エッジ部の移動量によって各々の巻取機の巻取り軸をそれぞれ板幅方向に移動してスリット隙間を調整することにより、ラインの高速化を可能とするものである。
(4)傾斜ロールによるもの(特許文献1)
これは、巻取機を1台とし、スリット隙間検出器の検出値が所望値となるように、2条のスリット材S1,S2にそれぞれ当接させた左右の傾斜ロールのスキュー角を左右同一角度としながら変更することにより、スリット隙間を調整・保持し、エッジが揃った良好な巻き姿を得ようとするものである。
(5)片圧下調整可能なピンチロールによるもの(特許文献2)
これは、スリッタとテンションリール(巻取機)の間に、複数条のスリット材の個々について片圧下調整可能なピンチロールを設置し、その片圧下調整によりスリット材をライン中心から離す方向に矯正するものである。これによれば、各スリット材のライン中央側を片圧下(部分圧下)するとスリット隙間が広がる方向に回転モーメントが作用する。逆にライン外側を片圧下(部分圧下)するとスリット隙間が狭まる方向に回転モーメントが作用する。
・上流から下流に至る時間遅れに起因して、制御目標と実際との幅方向の位置ズレが生じる。
・複雑な制御システムが必要となる。
・定常時の巻取りは安定しても、非定常時の巻取りは不安定となる。すなわち、コイル最外周部に相当するシヤー切断後のスリット材尾端においては、スリット材の張力が無くなって挙動が不安定になるため、EPC装置や傾斜ロールが十分使えない。上流の板エッジを検出してEPCを行っても、テンションリール軸が板幅方向にシフトし、スリット材の尾端自体も一緒に同じ板幅方向へシフトして板エッジを次々追いかける形になってリールの幅方向移動限界まで発散して制御不能となり巻取りが不安定になる。
・非定常時には、前記片圧下によるスリット隙間制御もピンチロールが不安定となるため使えない。
[1]
搬送ライン内で1条の全幅の帯板Sを2条にスリットしてなるスリット帯板S1,S2をピンチロールにて通板させるスリット帯板の蛇行防止装置であって、前記ピンチロールは、前記スリット帯板の下面を支える下ロール12と、前記スリット帯板の上面に当接して外側片圧下または内向きスキュー角により前記スリット帯板をライン中央側へ寄せる上ロール11とを有し、かつ前記スリット帯板のライン中央側エッジ近傍に当接する前記上ロールの中央当接部と前記下ロールとで挟まれた前記スリット帯板のライン中央側エッジをガイドするエッジガイド1を設けたことを特徴とするスリット帯板の蛇行防止装置。
[2]
前項[1]において、前記エッジガイド1は進退自在とされてなり、前記スリット帯板S1,S2を通板させる時には前記下ロール12との接触位置まで下降して前記スリット帯板のライン中央側エッジをガイドし、前記全幅の帯板Sをスリットせずに通板させる時には前記全幅の帯板の上面へ退避することを特徴とするスリット帯板の蛇行防止装置。
[3]
前項[1]において、前記エッジガイド1を、前記上ロール11と同軸で前記上ロール外径よりも大径のディスク1A、または前記大径のディスク1B2および前記上ロールの中央当接部に代わる前記上ロール外径と同径以下の当接部1B1からなる段付ディスク1B、で構成したことを特徴とするスリット帯板の蛇行防止装置。
[4]
前項[2]において前記エッジガイド1を、または、前項[3]において前記エッジガイドのディスク部1A,1B2を、前記上ロール11のロール軸に遊嵌させたセパレートリング1Cで構成したことを特徴とするスリット帯板の蛇行防止装置。
[5]
前項[2]において、前記エッジガイド1を、前記上ロール11のロール軸に設けた溝部11Aと、該溝部に遊嵌させたセパレートディスク1Dとで構成したことを特徴とするスリット帯板の蛇行防止装置。
スリット材(スリット帯板、略して板)の蛇行は制御(フィードバック制御)せず、スリット材を機構的(機械的)にライン中央側に寄せるようにする。スリット材を各々ライン中央側に寄せる機構的(機械的)方法のひとつは、外側片圧下法である。上ピンチロールのロール径をライン外側のみ大きくした段付きロールを用いる方法である。
スリット材を各々ライン中央側に寄せる機構的(機械的)方法のひとつは、ピンチロールの上ロールを帯板搬送方向から内向きに傾斜させること(すなわち内向きスキュー角)による方法である。ロールに内向きスキュー角を付ければ、スリット材にライン内側を向くロール周速成分が伝達されるため、スリット材が機構的(機械的)にライン中央に寄る。
一方、ライン中央側に寄せられたスリット材は、ライン中央部で位置を安定させ、重なりを防止する必要があるため、帯板のエッジガイドを設ける。エッジガイドを設ける位置は、ピンチロールのニップ内および/またはニップ近傍内とする。ここに、ニップ近傍とは、図12に示すように、スリット帯板の進行方向に対して、ロール中心とニップ中心を結ぶ線分に対してロール中心を基準に±30°以内の角度となる板面内の上流側と下流側の範囲である。
スリット材がエッジガイドに寄せられてエッジガイドから反力を受けても板が変形しないように、上下ロールで挟持したニップ内および/またはニップ近傍内に位置し、板剛性が非常に高い状態となっている板エッジを拘束するエッジガイドを設けたところに、本発明の特長はある。
例えば図2に示すように、サイドガイドSGを用いるとニップとその次のニップとの間で帯板Sに耳傷みが発生する場合がある(図2(a))のに対し、ニップ内および/またはニップ近傍内に位置する板エッジのライン中央側に設けたエッジガイド1によれば、帯板S1,S2がピンチロールの上ロール11と下ロール12とで挟持されて板剛性が非常に高くなっているため、耳傷みは発生しない(図2(b))。なお、前記エッジガイドは、ニップ内および/またはニップ近傍内の中でも、ニップ内に位置する板エッジを拘束することが、より高い板剛性を得る点から好ましい。
上記基本概念により、スリット帯板の搬送ライン(あるいはスリットラインともいう)において、簡素な装置構成で、帯板のエッジを傷めずに、スリット後の帯板を搬送ライン中央側で安定させることができ、また、切断後の尾端通板時のような非定常通板時でも、容易に安定通板させることができる。
前記エッジガイドは、前記下ロールと接触していれば、確実に板エッジをガイドすることができる。パスラインの上下変動が少ないラインに設置する場合には、前記エッジガイド下端が前記スリット材の上面から前記下ロール表面の間にあればよい。前記エッジガイドは、エッジガイド自体の自重によるか、もしくは押さえ機構等により下降させる。例えば、図13に示すように、ロッドの先端部に小さいロールを付けたシリンダでセパレートリングやセパレートディスクを押し下げてもよい。ただし通常材を通板させる時には、通常材の上面に変形や疵を発生させないように押し付け力を小さくする。
図14に示すように、通常材に接触するエッジガイドの最外周は、上ロールと同質かゴム等の弾性体とし、スリット材のエッジと接触するエッジガイドの側面は、硬度の高い耐磨耗材とする。
なお、第1デフレクタピンチロール21への本発明適用のみでも十分な蛇行防止効果が得られるが、実施例1のように第2デフレクタピンチロール22へも本発明を適用すると、その効果はさらに大きくなる。
1A ディスク
1B 段付きディスク
1B1 圧下部
1B2 ディスク部
1C セパレートリング
1D セパレートディスク
10 搬送ロール
11 上ロール
11A 溝部
12 下ロール
20 シヤー
21 第1デフレクタピンチロール
22 第2デフレクタピンチロール
31 第1テンションリール
32 第2テンションリール
S 帯板(全幅の帯板または通常材)
S1,S2 帯板(スリット帯板またはスリット材)
SG サイドガイド
Claims (5)
- 搬送ライン内で1条の全幅の帯板を2条にスリットしてなるスリット帯板をピンチロールにて通板させるスリット帯板の蛇行防止装置であって、
前記ピンチロールは、前記スリット帯板の下面を支える下ロールと、前記スリット帯板の上面に当接して外側片圧下または内向きスキュー角により前記スリット帯板をライン中央側へ寄せる上ロールとを有し、
かつ前記スリット帯板のライン中央側エッジ近傍に当接する前記上ロールの中央当接部と前記下ロールとで挟まれた前記スリット帯板のライン中央側エッジをガイドするエッジガイドを設けたことを特徴とするスリット帯板の蛇行防止装置。 - 請求項1において、
前記エッジガイドは進退自在とされてなり、
前記スリット帯板を通板させる時には前記下ロールとの接触位置まで下降して前記スリット帯板のライン中央側エッジをガイドし、
前記全幅の帯板をスリットせずに通板させる時には前記全幅の帯板の上面へ退避することを特徴とするスリット帯板の蛇行防止装置。 - 請求項1において、
前記エッジガイドを、前記上ロールと同軸で前記上ロール外径よりも大径のディスク、または前記大径のディスクおよび前記上ロールの中央当接部に代わる前記上ロール外径と同径以下の当接部からなる段付きディスク、で構成したことを特徴とするスリット帯板の蛇行防止装置。 - 請求項2において前記エッジガイドを、または、請求項3において前記エッジガイドのディスク部を、前記上ロールのロール軸に遊嵌させたセパレートリングで構成したことを特徴とするスリット帯板の蛇行防止装置。
- 請求項2において、前記エッジガイドを、前記上ロールのロール軸に設けた溝部と、該溝部に遊嵌させたセパレートディスクとで構成したことを特徴とするスリット帯板の蛇行防止装置。
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CN2010800410576A CN102648063B (zh) | 2009-09-15 | 2010-09-15 | 分切带板的蛇行防止装置 |
EP10817316.2A EP2478976B1 (en) | 2009-09-15 | 2010-09-15 | Slit band plate meandering preventing device |
BR112012005762A BR112012005762A2 (pt) | 2009-09-15 | 2010-09-15 | aparelho para prevenir o andamento de tira |
MX2012003105A MX2012003105A (es) | 2009-09-15 | 2010-09-15 | Aparato para prevenir el desplazamiento de tiras. |
KR1020127006175A KR101191602B1 (ko) | 2009-09-15 | 2010-09-15 | 슬릿 대판 사행 방지 장치 |
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EP (1) | EP2478976B1 (ja) |
JP (1) | JP4735769B2 (ja) |
KR (1) | KR101191602B1 (ja) |
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JP5741181B2 (ja) * | 2011-04-22 | 2015-07-01 | 新日鐵住金株式会社 | 酸洗タンクの鋼帯支持装置 |
WO2013157147A1 (ja) * | 2012-04-19 | 2013-10-24 | Jfeスチール株式会社 | スリット帯板の蛇行防止装置 |
KR101739866B1 (ko) | 2016-01-22 | 2017-05-25 | 주식회사 포스코 | 방향성 전기강판의 자구미세화 방법과 그 장치 |
JP7093366B2 (ja) * | 2017-05-19 | 2022-06-29 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | アルカロイド含有材料をキャスティングするための方法 |
JP7480766B2 (ja) | 2021-09-30 | 2024-05-10 | Jfeスチール株式会社 | 鋼帯尾端部の巻取装置及び方法並びに鋼帯の連続処理設備 |
CN114453440A (zh) * | 2022-01-13 | 2022-05-10 | 中冶南方工程技术有限公司 | 一种带钢穿带纠偏方法及设备 |
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JPH035017A (ja) | 1989-05-31 | 1991-01-10 | Mitsubishi Heavy Ind Ltd | 帯板スリット材のスリット隙間調整装置 |
JPH05338872A (ja) * | 1992-06-03 | 1993-12-21 | Kawasaki Steel Corp | スリットされたストリップの案内装置 |
JPH10230319A (ja) | 1997-02-21 | 1998-09-02 | Nippon Steel Corp | スリット鋼板の安定通板装置 |
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FR1375761A (fr) * | 1963-06-25 | 1964-10-23 | Achard | Dispositif destiné à assurer pour plusieurs bandes parallèles mobiles une tension déterminée uniforme par unité de largeur |
FR1468856A (fr) * | 1965-10-18 | 1967-02-10 | Alcan Aluminium France | Perfectionnements à l'enroulement de bandes métalliques à la sortie d'une ligne de refendage |
CN2920468Y (zh) * | 2006-05-16 | 2007-07-11 | 上海精裕设备成套工程有限公司 | 卷取机夹送辊在线自动清整装置 |
CN101462128A (zh) * | 2008-11-20 | 2009-06-24 | 无锡五冶金属压延有限公司 | 导向夹送直头辊装置 |
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JPH0180206U (ja) * | 1987-11-20 | 1989-05-30 | ||
JPH035017A (ja) | 1989-05-31 | 1991-01-10 | Mitsubishi Heavy Ind Ltd | 帯板スリット材のスリット隙間調整装置 |
JPH05338872A (ja) * | 1992-06-03 | 1993-12-21 | Kawasaki Steel Corp | スリットされたストリップの案内装置 |
JPH10230319A (ja) | 1997-02-21 | 1998-09-02 | Nippon Steel Corp | スリット鋼板の安定通板装置 |
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CN102648063A (zh) | 2012-08-22 |
KR20120049906A (ko) | 2012-05-17 |
EP2478976A1 (en) | 2012-07-25 |
EP2478976B1 (en) | 2014-05-07 |
MX2012003105A (es) | 2012-04-11 |
EP2478976A4 (en) | 2013-05-15 |
BR112012005762A2 (pt) | 2019-09-24 |
JP4735769B2 (ja) | 2011-07-27 |
KR101191602B1 (ko) | 2012-10-15 |
CN102648063B (zh) | 2013-08-07 |
JP2011083821A (ja) | 2011-04-28 |
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