Wiping equipment and rolling equipment

Abstract

A wiping device for removing liquid from a surface of a metal strip plate being conveyed, the device comprising a first wiping member that is disposed in such a manner as to be capable of coming into contact with a rolling surface of the strip plate, wherein the first wiping member has an inclination portion that extends in a direction tilted with respect to the plate-width direction of the strip plate.

Description

[Technical field]

[0001] The present disclosure relates to a wiping device and a rolling facility. [Background technology]

[0002] In a rolling facility for rolling a metal strip, the rolling is performed while supplying liquid coolant to the rolling rolls. If the coolant remains on the surface of the rolled strip, it can cause a quality problem. Therefore, a wiping device has been proposed for removing liquid such as coolant from the surface of the strip.

[0003] Patent documents 1 and 2 each describe a wiping device including a stationary (contact type) wiper that is arranged downstream of a rolling roll for rolling a metal strip, extending in a direction perpendicular to the conveying direction of the strip and in contact with the surface of the strip. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 1-130808 [Patent Document 2] JP 2019-25532 A Summary of the Invention [Problem to be solved by the invention]

[0005] Compared to roll-type wipers, stationary (contact-type) wipers have the advantage that liquids such as coolant removed from the surface of the strip by the wiper are less likely to scatter around, and that the contact between the wiper and the strip is more likely to be even in the strip width direction, making it less likely that uneven wiping will occur.

[0006] On the other hand, in general, in a stationary wiper, liquid such as coolant removed from the surface of the strip by the wiper tends to accumulate upstream of the wiper. If foreign matter such as metal powder generated by wear of the roll or strip and wear debris generated by wear of the wiper that is mixed into the coolant is included in the liquid, these foreign matter also accumulate upstream of the wiper and form lumps. The accumulated foreign matter may damage the surface of the strip.

[0007] In view of the above circumstances, an object of at least one embodiment of the present invention is to provide a wiping device and rolling equipment that are less likely to damage the surface of a metal strip. [Means for solving the problem]

[0008] A wiping device according to at least one embodiment of the present invention comprises: 1. A wiping device for removing liquid from a surface of a metal strip being conveyed, comprising: A first wiping member is provided so as to be able to come into contact with the rolling surface of the strip, The first wiping member has an inclined portion extending in a direction inclined with respect to the plate width direction of the band plate.

[0009] Further, the rolling equipment according to at least one embodiment of the present invention includes: a rolling roll for rolling the metal strip; the wiping device provided downstream of the rolling roll in the conveying direction of the strip; Equipped with. Effect of the Invention

[0010] According to at least one embodiment of the present invention, a wiping device and rolling equipment that are less likely to damage the surface of a metal strip are provided. [Brief description of the drawings]

[0011] [Figure 1] 1 is a schematic diagram of a rolling facility including a wiping device according to an embodiment; [Diagram 2]2 is a schematic plan view of a wiping device in the rolling facility shown in FIG. 1. [Diagram 3] 2 is a schematic cross-sectional view of a first wiping member in the rolling facility shown in FIG. 1. [Figure 4] 3 is a schematic cross-sectional view of a first wiping member in the rolling equipment according to one embodiment. FIG. [Diagram 5] FIG. 2 is a schematic plan view of a wiping device according to an embodiment; [Figure 6] FIG. 2 is a schematic plan view of a wiping device according to an embodiment; [Figure 7] FIG. 2 is a schematic plan view of a wiping device according to an embodiment; [Figure 8] FIG. 2 is a schematic plan view of a wiping device according to an embodiment; [Figure 9] FIG. 2 is a schematic plan view of a wiping device according to an embodiment; [Figure 10] 2 is a schematic cross-sectional view of a side wiper of a wiping device according to an embodiment; FIG. [Figure 11] 2 is a schematic cross-sectional view of a side wiper of a wiping device according to an embodiment; FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of components described as the embodiments or shown in the drawings are merely illustrative examples and are not intended to limit the scope of the present invention.

[0013] Fig. 1 is a schematic diagram of a rolling facility equipped with a wiping device according to some embodiments. Fig. 2 is a schematic plan view of the wiping device in the rolling facility shown in Fig. 1. Also, Figs. 5 to 9 are each a schematic plan view of a wiping device 10 according to one embodiment.

[0014] As shown in Fig. 1, a rolling facility 1 according to one embodiment includes a rolling mill 4 including a rolling roll 2 for rolling a strip S of metal (steel, etc.), and a wiping device 10 provided downstream of the rolling roll 2 in the conveying direction of the strip S. As shown in Fig. 1, the rolling facility 1 may include a winding device 8 for winding up the strip S rolled by the rolling roll 2, or may include a guide roll 6 provided between the rolling roll 2 and the winding device 8 for guiding the strip S to the rolling roll 2. The wiping device 10 may be provided between the rolling roll 2 and the winding device 8 in the conveying direction of the strip S.

[0015] In the rolling mill 4, rolling is performed while supplying liquid coolant to the rolling rolls 2. Therefore, the coolant adheres to the surface of the strip S that has passed through the rolling rolls 2. The wiping device 10 is a wiping device for removing liquid such as coolant from the surface of the strip S by wiping it.

[0016] In some embodiments, the wiping device 10 includes a first wiping member 12 that is provided so as to be able to come into contact with the surface of the strip S. Here, Fig. 3 is a schematic cross-sectional view of the first wiping member 12 in the rolling equipment 1 shown in Fig. 1 .

[0017] 1 and 3, the first wiping member 12 is provided so as to be able to come into contact with the rolled surface Sa or Sb of the strip S. In the illustrated embodiment, the wiping device 10 includes first wiping members 12, 12 which are able to come into contact with the upper rolled surface Sa and the lower rolled surface Sb of the strip S, respectively. In the illustrated embodiment, each of the first wiping members 12 has a flat surface 14 which is able to come into contact with the rolled surface Sa or Sb.

[0018] The rolled surfaces Sa, Sb of the strip S refer to the surfaces of the strip S that are rolled by the rolls 2 or that have been rolled by the rolls 2 (the surfaces in contact with the outer peripheral surfaces of the rolls 2).

[0019] 2 and 5 to 9, the first wiping member 12 has an inclined portion 20 extending in a direction inclined with respect to the width direction of the band plate S. In the exemplary embodiment shown in FIG. 2, the entire first wiping member 12 is an inclined portion 20 extending in a direction inclined with respect to the width direction of the band plate S. In the exemplary embodiment shown in FIGS. 5 to 9, the first wiping member 12 includes a first inclined portion 20A (inclined portion 20) and a second inclined portion 20B (inclined portion 20) whose extending directions are different from each other.

[0020] The wiping device 10 may include a pressing unit configured to press the first wiping member 12 against the rolled surfaces Sa, Sb of the strip S. By pressing the first wiping member 12 against the strip S by the pressing unit, the flat surface 14 of the first wiping member 12 can be brought into contact with the surface of the strip S. The pressing unit may include, for example, a hydraulic cylinder or a pneumatic cylinder, or an elastic member such as a spring.

[0021] 3, the wiping device 10 may include a holding member 24 that holds the first wiping member 12. The above-mentioned pressing portion may apply pressing forces F1 and F2 (forces pressing the first wiping member 12 against the band plate S) to the first wiping member 12 via the holding member 24.

[0022] In general, in a stationary wiper, liquid such as coolant removed from the surface of the strip by the wiper tends to accumulate upstream of the wiper. If foreign matter such as metal powder generated by wear of the roll or strip and wear debris generated by wear of the wiper that is mixed into the coolant is contained in the liquid, these foreign matter also accumulate upstream of the wiper, and the accumulated foreign matter may damage the surface of the strip.

[0023] In this regard, according to the above-mentioned embodiment, the first wiping member 12 has the inclined portion 20 extending in a direction inclined with respect to the sheet width direction, so that the liquid removed from the surface of the strip S by the first wiping member 12 and foreign matter contained in the liquid are less likely to remain on the upstream side of the first wiping member 12, and are more likely to be discharged toward the side of the strip S along the inclined portion 20 of the first wiping member 12. Therefore, according to the above-mentioned embodiment, it is possible to promote the discharge of foreign matter contained in the liquid (solid matter mixed in the coolant (metal powder generated by wear of the rolling roll or strip, wear debris of the wiping member, etc.)). Therefore, it is possible to effectively prevent scratches on the surface of the strip S caused by foreign matter remaining on the upstream side of the first wiping member 12.

[0024] The inclination angles θ1, θ1A, θ1B (see FIG. 2 and FIG. 5 to FIG. 9) of the extending direction of the inclined portions 20, 20A, 20B of the first wiping member 12 (shown by straight lines L1, L1A, L1B in FIG. 2 and FIG. 5 to FIG. 9) with respect to the plate width direction of the band plate S (shown by straight line L0 in FIG. 2 and FIG. 5 to FIG. 9) may be, for example, 1 degree or more and 45 degrees or less, and more preferably 3 degrees or more and 10 degrees or less. Since the above-mentioned inclination angle is 1 degree or more or 3 degrees or more, the liquid remaining on the upstream side of the first wiping member 12 can be effectively discharged toward the side in the plate width direction along the first wiping member 12. In addition, since the above-mentioned inclination angle is 45 degrees or less or 10 degrees or less, the length of the first wiping member 12 is unlikely to be excessive, and therefore the wiping device 10 can be prevented from becoming large.

[0025] In some embodiments, the first wiping member 12 may extend from the first end E1 to the second end E2 in the width direction of the strip S (see FIGS. 2, 5, and 8). Alternatively, in some embodiments, the first wiping member 12 may extend within a range between the first end E1 and the second end E2 of the strip S in the width direction of the strip S (i.e., the end of the first wiping member 12 in the width direction may not reach the end (the first end E1 or the second end E2) of the strip S) (see FIGS. 6, 7, and 9).

[0026] The first wiping member 12 may be formed from a graphite fiber reinforced resin composite material. The graphite fiber reinforced resin composite material may include, for example, a graphite fiber reinforced polyimide resin composite material (PGFC: polyimide graphite fiber reinforced composite).

[0027] Graphite fiber reinforced resin composite materials such as PGFC have self-lubricating properties and a small coefficient of friction with metal materials. Therefore, by forming the first wiping member 12 from a graphite fiber reinforced resin composite material, heat and wear due to friction between the first wiping member 12 and the band plate S are unlikely to occur. Therefore, wear debris due to wear of the first wiping member 12 is unlikely to be generated, and scratches on the surface of the band plate S due to wear debris can be suppressed.

[0028] Furthermore, by arranging the first wiping member 12 at an angle with respect to the plate width direction as in the above-described embodiment, the contact area between the first wiping member 12 and the band plate S is increased compared to the case where the first wiping member 12 is arranged to extend in the plate width direction. In this regard, by forming the first wiping member 12 from a graphite fiber reinforced resin composite material that has self-lubricating properties and a small coefficient of friction with metal materials, even if the contact area between the first wiping member 12 and the band plate S is increased, the generation of heat and wear due to friction between the first wiping member 12 and the band plate S can be effectively suppressed.

[0029] 5 to 9, the first wiping member 12 includes a first inclined portion 20A located on the first end E1 side of the strip S in the sheet width direction, and a second inclined portion 20B located on the second end E2 side of the strip S in the sheet width direction. The first inclined portion 20A extends in a direction inclined toward the downstream side in the conveying direction of the strip S as it moves from the second end E2 side to the first end E1 side in the sheet width direction. The second inclined portion 20B extends in a direction inclined toward the downstream side in the conveying direction of the strip S as it moves from the first end E1 side to the second end E2 side in the sheet width direction.

[0030] In the above embodiment, the first wiping member 12 includes a first inclined portion 20A located on the first end E1 side of the strip S and extending in a direction inclined toward the downstream side in the conveying direction of the strip S as it moves from the second end E2 side to the first end E1 side in the strip width direction of the strip S, and a second inclined portion 20B located on the second end E2 side of the strip S and extending in a direction inclined toward the downstream side in the conveying direction of the strip S as it moves from the first end E1 side to the second end E2 side in the strip width direction of the strip S. Therefore, the liquid removed from the surface of the strip S by the first wiping member 12 and foreign matter contained in the liquid are easily discharged toward both sides of the strip S along the first wiping member 12. Therefore, the foreign matter contained in the liquid can be more effectively discharged, and thus, scratches on the surface of the strip S due to foreign matter remaining on the upstream side of the first wiping member 12 can be more effectively suppressed.

[0031] Fig. 4 is a schematic cross-sectional view of a first wiping member 12 in a rolling equipment 1 according to one embodiment. In some embodiments, as shown in Fig. 4, for example, the first wiping member 12 has an upstream side surface 15 connected to the flat surface 14 at an upstream end of the flat surface 14 in the conveying direction of the strip S. In addition, in a cross section perpendicular to the strip width direction of the strip S, an angle φ1 between the flat surface 14 and the upstream side surface 15 is greater than 0 degrees and smaller than 90 degrees.

[0032] In the above embodiment, in a cross section perpendicular to the sheet width direction, the angle φ1 between the flat surface 14 and the upstream side surface 15 of the first wiping member 12 is greater than 0 degrees and smaller than 90 degrees. That is, in the above cross section, the angle φ2 (see FIG. 4) between the upstream side surface 15 of the first wiping member 12 and a portion of the rolled surface of the strip S (rolled surface Sa in FIG. 4) upstream of the first wiping member 12 is an obtuse angle. Therefore, compared to when the angle φ2 is 90 degrees or less, liquid such as coolant and foreign matter contained in the liquid (solid matter mixed in the coolant (metal powder generated by wear of the rolling roll or strip, wear debris of the first wiping member 12, etc.)) is more easily discharged from the region between the upstream side surface 15 of the first wiping member 12 and the rolled surface of the strip S. Therefore, it is possible to promote the discharge of liquid and foreign matter from the above region, and it is possible to more effectively suppress scratches on the surface of the strip S caused by foreign matter.

[0033] In the embodiment shown in FIG. 3, the above-mentioned angles φ1 and φ2 are approximately 90 degrees.

[0034] In some embodiments, the wiping device 10 may include a first drive unit (not shown) for moving the first wiping member 12 along the sheet width direction. The first drive unit may include a hydraulic cylinder, a pneumatic cylinder, or a motor.

[0035] According to the above-described embodiment, by moving the first wiping member 12, which extends in a direction inclined with respect to the sheet width direction, along the sheet width direction, it is possible to push out the liquid remaining on the upstream side of the first wiping member 12 and foreign matter contained in the liquid toward the side of the strip S. Thus, it is possible to more effectively discharge the foreign matter contained in the liquid, and it is possible to more effectively prevent the surface of the strip S from being scratched due to the foreign matter remaining on the upstream side of the first wiping member 12.

[0036] Furthermore, according to the above-described embodiment, when the first wiping member 12 partially contacts the band plate S in the plate width direction (for example, see Figs. 2, 5 and 8), the first wiping member 12 is moved in the plate width direction by the first driving unit, thereby changing the portion of the first wiping member 12 that contacts the band plate S. Thus, the portions of the first wiping member 12 that are worn due to friction with the band plate S can be dispersed, and the life of the first wiping member 12 can be extended.

[0037] In some embodiments, as shown in Figs. 6 to 9, for example, the wiping device 10 includes a second wiping member 22 (22A, 22B) provided so as to be able to come into contact with the rolled surface Sa or Sb of the strip S in a region including the end of the strip S in the strip width direction (a portion of the strip S including the first end E1 or the second end E2 in the strip width direction). In the exemplary embodiment shown in Figs. 6 to 9, the wiping device 10 includes a second wiping member 22A provided so as to be able to come into contact with the rolled surface of the strip S in a region including the end of the strip S on the first end E1 side, and a second wiping member 22B provided so as to be able to come into contact with the rolled surface of the strip S in a region including the end of the strip S on the second end E2 side.

[0038] According to the above-described embodiment, the wiping device 10 includes the first wiping member 12 and the second wiping member 22 provided in a region (end region) including an end of the strip S in the strip width direction, and therefore the first wiping member 12 and the second wiping member 22 can be individually replaced. Therefore, only the wiping member that has become worn (the first wiping member 12 or the second wiping member 22) can be selectively replaced, and therefore costs can be reduced compared to a configuration that requires replacement of the entire wiping member.

[0039] In some embodiments, as shown in, for example, Figures 7 to 9, the second wiping member 22 (22A, 22B) is provided downstream of the first wiping member 12 in the conveying direction of the strip plate and is provided so as to partially overlap with the first wiping member 12 in the strip width direction.

[0040] According to the above-described embodiment, the second wiping member 22 (22A, 22B) is provided so as to partially overlap the first wiping member 12 in the plate width direction, so that the wiping efficiency of the end region of the band plate S can be improved.

[0041] In some embodiments, as shown in Fig. 6, for example, the second wiping member 22 (22A, 22B) is provided adjacent to the first wiping member 12 in the extension direction of the first wiping member 12. In the exemplary embodiment shown in Fig. 6, the second wiping member 22A provided on the first end E1 side in the plate width direction is provided adjacent to the first inclined portion 20A (first wiping member 12) in the extension direction (direction of the straight line L1A) of the first inclined portion 20A of the first wiping member 12, and the second wiping member 22B provided on the second end E2 side in the plate width direction is provided adjacent to the second inclined portion 20B (first wiping member 12) in the extension direction (direction of the straight line L1B) of the second inclined portion 20B of the first wiping member 12.

[0042] According to the above-described embodiment, it is possible to obtain a wiping device 10 having a simple configuration in which the first wiping member 12 and the second wiping member 22 are adjacent to each other in the extension direction of the first wiping member 12. Therefore, for example, maintenance of the wiping device 10 can be easily performed.

[0043] In some embodiments, the wiping device 10 may include a second drive unit (not shown) for moving the second wiping member 22 along the sheet width direction. The second drive unit may include a hydraulic cylinder, a pneumatic cylinder, or a motor.

[0044] According to the above-described embodiment, the second wiping member 22 is moved in the plate width direction by the second driving unit, thereby dispersing the worn portions of the second wiping member 22. Thus, the replacement frequency of the second wiping member 22 can be reduced.

[0045] In some embodiments, as shown in, for example, FIGS. 6 to 8, the second wiping member 22 is a rod-shaped member extending in the width direction of the strip S.

[0046] In some embodiments, the second wiping member 22 has a circular cross-sectional profile along the horizontal direction, as shown in Fig. 9. The cross-sectional profile of the second wiping member 22 along the horizontal direction may be a ring shape as shown in Fig. 9, or may be a disk shape.

[0047] According to the above-described embodiment, the second wiping member 22 has a circular cross-sectional profile along the horizontal direction, and therefore can wipe the end region of the band plate S more widely.

[0048] In some embodiments, the second wiping member 22 is provided to be rotatable around a rotation axis O (see FIG. 9) along the vertical direction. In this case, the wear portions of the second wiping member 22 can be dispersed. This reduces the frequency of replacing the second wiping member 22. The second wiping member 22 may be rotated by a driving device such as a motor. Alternatively, the second wiping member 22 may be rotated by friction with the band plate S.

[0049] 1 and 2, the wiping device 10 may include a third wiping member 30 that is provided so as to be able to come into contact with an end surface Se in the sheet width direction of the strip S. Here, the end surface Se in the sheet width direction of the strip S refers to a surface of the surface of the strip S that connects a pair of rolled surfaces Sa, Sb (an upper rolled surface Sa and a lower rolled surface Sb) of the strip S to each other at both ends of the strip S in the sheet width direction.

[0050] In this manner, by providing the third wiping member 30 capable of coming into contact with the end surface Se of the strip S in the plate width direction, liquid adhering to the end surface Se of the strip S in the plate width direction can be effectively removed.

[0051] 10 and 11 are schematic cross-sectional views of the side wiper 28 of the wiping device 10 according to one embodiment. The side wiper 28 is a wiper including the above-mentioned third wiping member 30. Note that Figs. 10 and 11 are views showing cross sections of the side wiper 28 at different positions in the conveying direction of the strip S.

[0052] 10 and 11, the side wiper 28 has a third wiping member 30 capable of contacting an end face Se of the strip S in the strip width direction. The third wiping member 30 has a flat surface 32 capable of contacting the end face Se of the strip S. The third wiping member 30 may be formed from a graphite fiber reinforced resin composite material. The graphite fiber reinforced resin composite material may include, for example, a graphite fiber reinforced polyimide resin composite material (PGFC: polyimide graphite fiber reinforced composite).

[0053] The side wiper 28 has a flat plate portion 50 extending along the thickness direction of the strip S, and the third wiping member 30 of the side wiper 28 is supported by the flat plate portion 50 via a spring 56 (first elastic member; see FIG. 10). The spring 56 corresponds to a pressing portion, and a pressing force F3 (a force pressing the third wiping member 30 against the end surface Se of the strip S) from the pressing portion (spring 56) is applied to the third wiping member 30. In the case of equipment that processes only strips S with a substantially constant width, the flat plate portion 50 may be fixed and immobile. However, since most equipment is required to process strips S with various widths, it is preferable to provide a conveying device (not shown) that can slide the flat plate portion 50 in the strip width direction of the strip S.

[0054] As shown in Figs. 10 and 11, the side wiper 28 may include a clamping portion 51 supported by a flat plate portion 50 and configured to clamp the band plate S in the plate thickness direction. The clamping portion 51 shown in Figs. 8 and 9 includes a pair of clamping members 52, 52 provided on both sides (upper and lower sides of the band plate S) of the band plate S in the plate thickness direction. A spring 58 (second elastic member; see Fig. 11) is provided between the pair of clamping members 52, 52 for applying a biasing force to the pair of clamping members 52, 52 in a direction in which the pair of clamping members move away from each other. An actuator (not shown) is also provided for applying forces F4, F5 to the pair of clamping members 52, 52 in a direction opposite to the biasing force of the spring 58.

[0055] Of the pair of clamping members 52, 52, a portion 54 facing the band plate S may be formed from a graphite fiber reinforced resin composite material. The graphite fiber reinforced resin composite material may include, for example, a graphite fiber reinforced polyimide resin composite material (PGFC: polyimide graphite fiber reinforced composite).

[0056] As described above, according to the configuration in which the third wiping member 30 capable of contacting the end face Se in the plate width direction of the band plate S is provided, the third wiping member 30 can effectively remove liquid such as coolant adhering to the end face Se in the plate width direction of the band plate S. Furthermore, by forming the third wiping member 30 from a graphite fiber reinforced resin composite material that has self-lubricating properties and a small coefficient of friction with metal materials, the end face Se is less likely to be damaged when wiping the end face Se of the band plate S, and it is possible to reduce the frequency of replacing the third wiping member 30.

[0057] In the above embodiment, the third wiping member 30 is pressed toward the end face Se of the band plate S by the spring 56 (first elastic member), so that even if the band plate S moves in the plate width direction due to meandering of the band plate S, the third wiping member 30 can be made to follow the movement of the band plate S and can maintain a state in which the third wiping member 30 is in contact with the end face Se of the band plate S. Therefore, liquid attached to the end face Se of the band plate S in the plate width direction can be more reliably removed.

[0058] In the above embodiment, the clamping portion 51 supported by the flat portion 50 clamps the band plate S in the thickness direction, thereby stabilizing the position of the third wiping member 30 with respect to the band plate S. This makes it easier for the third wiping member 30 to maintain contact with the end face Se of the band plate S, so that liquid adhering to the end face Se of the band plate S in the width direction can be removed more reliably.

[0059] In the above embodiment, the actuator is operated to apply a force to the clamping members 52, 52 that is greater than the biasing force of the spring 58 (second elastic member), thereby making it possible to clamp the band plate S in the thickness direction by the clamping portion 51. The actuator is operated to make the force applied to the clamping members 52, 52 by the actuator smaller than the biasing force of the spring 58 (second elastic member), thereby making it possible to release the clamping of the band plate S by the clamping portion 51.

[0060] In some embodiments, for example as shown in FIGS. 1 and 2, the third wiping member 30 is provided downstream of the first wiping member 12 in the conveying direction of the strip S.

[0061] According to the above-described embodiment, a third wiping member 30 for wiping the end face Se of the strip S in the sheet width direction is provided downstream of the first wiping member 12 for wiping the rolled surfaces Sa, Sb of the strip S, so that liquid such as coolant discharged laterally from the rolled surfaces Sa, Sb of the strip S by the first wiping member 12 and adhering to the end face Se of the strip S can be effectively removed by the third wiping member 30.

[0062] In some embodiments, a third wiping member 30 is provided downstream of a first wiping member 12 (see Figures 2, 5, and 8) extending from a first end E1 to a second end E2 in the plate width direction of the strip S.

[0063] When the first wiping member 12 extends across both ends of the band plate S in the plate width direction, the liquid wiped by the first wiping member 12 tends to move toward the plate ends and drop from the plate ends, and tends to adhere to the end faces Se in the plate width direction of the band plate S. In this regard, according to the above-described embodiment, the third wiping member 30 is provided downstream of the first wiping member 12 extending from the first end E1 to the second end E2 in the plate width direction of the band plate S, so that the liquid adhering to the end faces Se in the plate width direction of the band plate S can be more effectively removed.

[0064] Below, an overview of a wiping device and a rolling installation according to some embodiments will be provided.

[0065] (1) At least one embodiment of the wiping device (10) of the present invention comprises: A wiping device for removing liquid from the surface of a metal strip (S) being conveyed, A first wiping member (12) is provided so as to be capable of coming into contact with the rolled surface (Sa, Sb) of the strip, The first wiping member has an inclined portion (20) extending in a direction inclined with respect to the plate width direction of the band plate.

[0066] According to the above configuration (1), since the first wiping member has an inclined portion extending in a direction inclined with respect to the sheet width direction, the liquid removed from the surface of the strip by the first wiping member and foreign matter contained in the liquid are less likely to remain on the upstream side of the first wiping member and are more likely to be discharged toward the side of the strip along the inclined portion of the first wiping member. Therefore, according to the above configuration (1), it is possible to promote the discharge of foreign matter contained in the liquid (solid matter mixed in the coolant (metal powder generated by wear of the rolling roll or strip, wear debris of the wiping member, etc.)). Therefore, it is possible to effectively prevent scratches on the strip surface caused by foreign matter remaining on the upstream side of the first wiping member.

[0067] In this specification, the surface of the strip that is rolled by the reduction rolls or that has been rolled by the reduction rolls (the surface in contact with the outer circumferential surface of the reduction roll) is referred to as the rolled surface.

[0068] (2) In some embodiments, in the configuration of (1) above, the first wiping member includes a first inclined portion (20A) located on a first end (E1) side of the band plate in the plate width direction, and a second inclined portion (20B) located on a second end (E2) side of the band plate in the plate width direction, The first inclined portion extends in a direction inclined toward a downstream side in a conveying direction of the strip as it moves from the second end side to the first end side in the strip width direction, The second inclined portion extends in a direction inclined toward a downstream side in a conveying direction of the band plate as it moves from the first end side to the second end side in the plate width direction.

[0069] According to the above-mentioned configuration (2), the first wiping member includes a first inclined portion located at the first end of the band plate and extending in a direction inclined toward the downstream side of the conveying direction of the band plate as it moves from the second end side to the first end side in the plate width direction of the band plate, and a second inclined portion located at the second end of the band plate and extending in a direction inclined toward the downstream side of the conveying direction of the band plate as it moves from the first end side to the second end side in the plate width direction of the band plate. Therefore, the liquid removed from the surface of the band plate by the first wiping member and the foreign matter contained in the liquid are easily discharged toward both sides of the band plate along the first wiping member. Therefore, according to the above-mentioned configuration (2), the foreign matter contained in the liquid can be more effectively discharged. Therefore, it is possible to more effectively prevent the surface of the band plate from being scratched due to the foreign matter remaining on the upstream side of the first wiping member.

[0070] (3) In some embodiments, in the configuration of (1) or (2), The wiping device is The wiper includes a first drive unit for moving the first wiping member along the plate width direction.

[0071] According to the above configuration (3), the first wiping member, which extends in a direction inclined with respect to the plate width direction, is moved along the plate width direction, so that the liquid remaining on the upstream side of the first wiping member and foreign matter contained in the liquid can be pushed out toward the sides of the plate. This makes it possible to more effectively discharge the foreign matter contained in the liquid, and more effectively prevent the surface of the plate from being scratched by the foreign matter remaining on the upstream side of the first wiping member.

[0072] (4) In some embodiments, in any one of the configurations (1) to (3) above, The wiping device is The rolling mill includes a second wiping member (22) provided so as to be capable of contacting the rolled surface of the strip within a region including the end portion of the strip in the strip width direction.

[0073] According to the above configuration (4), the wiping device includes the first wiping member and the second wiping member provided in the region (end region) including the end of the band plate in the plate width direction, so that the first wiping member and the second wiping member can be replaced separately. Therefore, since only the wiping member that has become worn can be selectively replaced, costs can be reduced compared to a configuration that requires the complete replacement of the wiping members.

[0074] (5) In some embodiments, in the configuration of (4), The second wiping member is provided downstream of the first wiping member in a conveying direction of the band plate and is provided so as to partially overlap with the first wiping member in the plate width direction.

[0075] According to the above configuration (5), the second wiping member is provided so as to partially overlap the first wiping member in the plate width direction, so that the wiping efficiency of the end region of the band plate can be improved.

[0076] (6) In some embodiments, in the configuration of (4), The second wiping member is provided adjacent to the first wiping member in an extension direction of the first wiping member.

[0077] According to the above configuration (6), a wiping device having a simple configuration in which the first wiping member and the second wiping member are adjacent to each other in the extending direction of the first wiping member can be obtained. Therefore, for example, maintenance of the wiping device can be easily performed.

[0078] (7) In some embodiments, in any one of the configurations (4) to (6) above, The wiping device is A second drive portion is provided for moving the second wiping member along the plate width direction.

[0079] According to the above configuration (7), the second wiping member is moved in the plate width direction, so that wear of the second wiping member can be dispersed, thereby reducing the frequency of replacement of the second wiping member.

[0080] (8) In some embodiments, in any of the configurations (4) to (7) above, The second wiping member has a circular contour in a cross section taken along a horizontal direction.

[0081] According to the above configuration (8), the second wiping member has a circular cross-sectional contour along the horizontal direction, so that the end region of the band plate can be wiped more widely. Also, by providing the second wiping member so that it rotates around a rotation axis along the vertical direction, wear of the second wiping member can be dispersed. Therefore, the frequency of replacement of the second wiping member can be reduced.

[0082] (9) In some embodiments, in any of the configurations (1) to (8) above, the first wiping member has a flat surface (14) capable of contacting the rolled surface of the strip, and an upstream side surface (15) connected to the flat surface at an upstream end of the flat surface in the conveying direction of the strip, In a cross section perpendicular to the width direction of the strip, the angle (φ1) between the flat surface and the upstream side surface is greater than 0 degrees and smaller than 90 degrees.

[0083] According to the above configuration (9), in a cross section perpendicular to the strip width direction, the angle between the flat surface and the upstream side of the first wiping member (hereinafter, angle φ1) is greater than 0 degrees and smaller than 90 degrees. That is, in the above cross section, the angle between the upstream side of the first wiping member and a portion of the rolled surface of the strip upstream of the wiping member (hereinafter, angle φ2) is an obtuse angle. Therefore, compared to when angle φ2 is 90 degrees or less, the liquid and foreign matter contained in the liquid are more likely to be discharged from the region between the upstream side of the wiping member and the rolled surface of the strip. Therefore, it is possible to more effectively prevent scratches on the strip surface caused by foreign matter remaining on the upstream side of the first wiping member.

[0084] (10) In some embodiments, in any one of the configurations (1) to (9) above, The wiping device is The apparatus further includes a third wiping member (30) provided so as to be capable of coming into contact with an end face (Se) of the band plate in the plate width direction.

[0085] In the above configuration (10), the third wiping member capable of contacting the end face in the width direction of the band plate is provided, so that liquid adhering to the end face in the width direction of the band plate can be effectively removed.

[0086] (11) In some embodiments, in the configuration of (10), The wiping device is A first elastic member (eg, the above-mentioned spring 56) is provided which is configured to press the third wiping member against the end surface of the strip.

[0087] According to the above configuration (11), since the third wiping member is pressed against the end face of the band plate by the first elastic member, even if the band plate moves in the plate width direction due to meandering of the band plate, the third wiping member can be made to follow the movement of the band plate and maintain a state in which the third wiping member is in contact with the end face of the band plate. Therefore, liquid adhering to the end face of the band plate in the plate width direction can be more reliably removed.

[0088] (12) In some embodiments, in the configuration of (10) or (11), The wiping device is a flat plate portion (50) extending along the thickness direction of the band plate and for supporting the third wiping member; a clamping portion (51) supported by the flat plate portion and configured to clamp the band plate in the plate thickness direction; Equipped with.

[0089] According to the above configuration (12), the clamping portion supported by the flat portion clamps the band plate in the thickness direction, thereby stabilizing the position of the third wiping member relative to the band plate. This makes it easier for the third wiping member to maintain contact with the end face of the band plate, so that liquid adhering to the end face of the band plate in the width direction can be more reliably removed.

[0090] (13) In some embodiments, in the configuration of (12), The clamping portion includes a pair of clamping members (52) provided on both sides of the band plate in the thickness direction of the band plate, The wiping device is a second elastic member (e.g., the above-mentioned spring 58) for applying a biasing force to the pair of clamping members in a direction in which the pair of clamping members move away from each other; an actuator for applying a force to the pair of clamping members in a direction opposite to the biasing force; Equipped with.

[0091] According to the above configuration (13), the actuator is operated to apply a force to the clamping member that is greater than the biasing force of the second elastic member, thereby allowing the clamping portion to clamp the band in the thickness direction. Also, the actuator is operated to make the force applied to the clamping member by the actuator smaller than the biasing force of the second elastic member, thereby allowing the clamping portion to release the band. Thus, according to the above configuration (13), the clamping portion can be flexibly operated.

[0092] (14) In some embodiments, in any one of the configurations (10) to (12) above, The third wiping member is provided downstream of the first wiping member in a transport direction of the band plate.

[0093] According to the above configuration (14), a third wiping member for wiping the end face of the strip in the strip width direction is provided downstream of the first wiping member for wiping the rolled surface of the strip. Therefore, liquid, etc. discharged laterally from the rolled surface of the strip by the first wiping member and adhering to the end face of the strip can be effectively removed by the third wiping member.

[0094] (15) At least one embodiment of the rolling equipment (1) of the present invention comprises: A rolling roll (2) for rolling a metal strip; A wiping device (10) according to any one of (1) to (14) above, which is provided downstream of the reduction roll in the conveying direction of the strip; Equipped with.

[0095] According to the above configuration (15), since the first wiping member extends in a direction inclined with respect to the sheet width direction, the liquid removed from the surface of the strip by the first wiping member and foreign matter contained in the liquid are less likely to remain upstream of the first wiping member and are more likely to be discharged toward the side of the strip along the first wiping member. Therefore, according to the above configuration (15), it is possible to promote the discharge of foreign matter contained in the liquid (solid matter mixed in the coolant (metal powder generated by wear of the rolling roll or strip, wear debris of the wiping member, etc.)). Therefore, it is possible to effectively prevent scratches on the strip surface caused by foreign matter remaining upstream of the first wiping member.

[0096] Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and also includes modifications to the above-described embodiments and appropriate combinations of these modifications.

[0097] In this specification, expressions expressing relative or absolute configuration, such as "in a certain direction," "along a certain direction," "parallel," "orthogonal," "center," "concentric," or "coaxial," do not only strictly represent such a configuration, but also represent a state in which there is a relative displacement with a tolerance or an angle or distance to the extent that the same function is obtained. For example, expressions indicating that things are in an equal state, such as "identical," "equal," and "homogeneous," not only indicate a state of strict equality, but also indicate a state in which there is a tolerance or a difference to the extent that the same function is obtained. Furthermore, in this specification, expressions describing shapes such as a rectangular shape or a cylindrical shape do not only refer to shapes such as a rectangular shape or a cylindrical shape in the strict geometric sense, but also refer to shapes that include uneven portions, chamfered portions, etc., to the extent that the same effect is obtained. In addition, in this specification, the expressions "comprise," "include," or "have" a certain element are not exclusive expressions that exclude the presence of other elements. [Explanation of symbols]

[0098] 1. Rolling equipment 2. Rolling 4. Rolling mill 6 Guide Roll 8 Winding device 10 Wiping device 12 First wiping member 14 Flat surface 15 Upstream side 20 Slope 20A 1st slope 20B 2nd slope part 22 Second wiping member 22A Second wiping member 22B Second wiping member 24 Retaining member 28 Side wiper 30 Third wiping member 32 flat surface 50 Flat plate part 51 Clamping part 52 Clamping member 54 parts 56 Spring (first elastic member) 58 Spring (second elastic member) E1 1st end E2 2nd end O Rotation axis S strip Sa Rolled surface Sb Rolled surface Se end face

Claims

1. 1. A wiping device for removing liquid from a surface of a metal strip being conveyed, comprising: A first wiping member is provided so as to be able to come into contact with the rolling surface of the strip, The first wiping member has an inclined portion extending in a direction inclined with respect to the plate width direction of the band plate, The first wiping member is The inclined portion extends in a direction inclined toward the downstream side in the conveying direction of the band plate as it moves from one end of the first wiping member in the plate width direction to the other end of the first wiping member in the plate width direction, from one end of the first wiping member in the plate width direction to the other end of the first wiping member in the plate width direction, or a first inclined portion located on a first end side of the band plate in the plate width direction and extending in a direction inclined toward the downstream side in the conveying direction of the band plate as it moves from the second end side to the first end side in the plate width direction, and a second inclined portion located on the second end side of the band plate in the plate width direction and extending in a direction inclined toward the downstream side in the conveying direction of the band plate as it moves from the first end side to the second end side in the plate width direction, an end portion on the second end side of the first inclined portion and an end portion on the first end side of the second inclined portion are connected to each other, a second wiping member provided so as to be capable of contacting the rolled surface of the strip at a position overlapping an end of the strip in the strip width direction in a plan view; Wiping device.

2. a first drive unit for moving the first wiping member along the plate width direction The wiping device according to claim 1 .

3. The second wiping member is provided downstream of the first wiping member in a conveying direction of the strip plate and is provided so as to partially overlap the first wiping member in the strip width direction. The wiping device according to claim 1 or 2.

4. The second wiping member is provided so as to overlap the first wiping member when viewed from the extending direction of the first wiping member. The wiping device according to claim 1 or 2.

5. a second drive unit for moving the second wiping member along the plate width direction A wiping device according to any one of the preceding claims.

6. The second wiping member has a circular cross-sectional profile along a horizontal direction. A wiping device according to any one of the preceding claims.

7. A wiping device for removing liquid from a surface of a metal strip being conveyed, comprising: A first wiping member is provided so as to be able to come into contact with the rolling surface of the strip, The first wiping member has an inclined portion extending in a direction inclined with respect to the plate width direction of the band plate, The first wiping member is The inclined portion extends in a direction inclined toward the downstream side in the conveying direction of the band plate as it moves from one end of the first wiping member in the plate width direction to the other end of the first wiping member in the plate width direction, from one end of the first wiping member in the plate width direction to the other end of the first wiping member in the plate width direction, or a first inclined portion located on a first end side of the band plate in the plate width direction and extending in a direction inclined toward the downstream side in the conveying direction of the band plate as it moves from the second end side to the first end side in the plate width direction, and a second inclined portion located on the second end side of the band plate in the plate width direction and extending in a direction inclined toward the downstream side in the conveying direction of the band plate as it moves from the first end side to the second end side in the plate width direction, an end portion on the second end side of the first inclined portion and an end portion on the first end side of the second inclined portion are connected to each other, The first wiping member has a flat surface capable of contacting the rolled surface of the strip and an upstream side surface connected to the flat surface at an upstream end of the flat surface in the conveying direction of the strip, In a cross section perpendicular to the width direction of the strip, the angle between the flat surface and the upstream side surface is greater than 0 degrees and smaller than 90 degrees. Wiping device.

8. A wiping device for removing liquid from a surface of a metal strip being conveyed, comprising: A first wiping member is provided so as to be able to come into contact with the rolling surface of the strip, The first wiping member has an inclined portion extending in a direction inclined with respect to the plate width direction of the band plate, The first wiping member is The inclined portion extends in a direction inclined toward the downstream side in the conveying direction of the band plate as it moves from one end of the first wiping member in the plate width direction to the other end of the first wiping member in the plate width direction, from one end of the first wiping member in the plate width direction to the other end of the first wiping member in the plate width direction, or a first inclined portion located on a first end side of the band plate in the plate width direction and extending in a direction inclined toward the downstream side in the conveying direction of the band plate as it moves from the second end side to the first end side in the plate width direction, and a second inclined portion located on the second end side of the band plate in the plate width direction and extending in a direction inclined toward the downstream side in the conveying direction of the band plate as it moves from the first end side to the second end side in the plate width direction, an end portion on the second end side of the first inclined portion and an end portion on the first end side of the second inclined portion are connected to each other, A third wiping member is provided so as to be capable of contacting an end surface of the band plate in the plate width direction. Wiping device.

9. a first elastic member configured to press the third wiping member against the end surface of the band plate; The wiping device according to claim 8.

10. a flat plate portion extending along a thickness direction of the band plate and configured to support the third wiping member; A clamping portion supported by the flat plate portion and configured to clamp the strip from the thickness direction; The wiping device according to claim 8 or 9, comprising:

11. The clamping portion includes a pair of clamping members provided on both sides of the band plate in a thickness direction of the band plate, a second elastic member for applying a biasing force to the pair of clamping members in a direction in which the pair of clamping members move away from each other; an actuator for applying a force to the pair of clamping members in a direction opposite to the biasing force; The wiping device according to claim 10 .

12. The third wiping member is provided downstream of the first wiping member in a conveying direction of the strip. A wiping device according to any one of claims 8 to 10.

13. a rolling roll for rolling the metal strip; The wiping device according to any one of claims 1 to 12, which is provided downstream of the reduction roll in a conveying direction of the strip; The rolling equipment includes:

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