Wiping equipment and rolling equipment
The segmented wiping device addresses high maintenance costs by enabling partial replacement of damaged components and preventing coolant leakage, ensuring efficient operation and quality.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-02-14
- Publication Date
- 2026-03-18
AI Technical Summary
Existing wiping devices with a single-piece wiper structure require complete replacement when a partial defect occurs, leading to increased maintenance costs.
A wiping device with a segmented wiping section composed of multiple members that can be individually replaced, featuring end faces angled to prevent coolant leakage and accommodate strip thickness variations.
Reduces maintenance costs by allowing partial replacement of damaged segments and effectively prevents coolant leakage, thereby maintaining product quality.
Smart Images
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Abstract
Description
Technical Field
[0001] The present disclosure relates to a wiping device and a rolling facility.
Background Art
[0002] In a rolling facility for rolling a metal strip, rolling is performed while supplying a liquid coolant to the rolling rolls. If the coolant remains on the surface of the rolled strip, it may cause quality problems. Therefore, a wiping device for removing liquids such as coolant from the surface of the strip has been proposed.
[0003] Patent Document 1 describes a wiping device including a stationary (contact type) wiper that extends in a direction orthogonal to the conveyance direction of a strip and is provided so as to contact the surface of the strip on the downstream side of a rolling roll for rolling a metal strip.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] By the way, in the case of a wiping device including a wiper having a long one-piece structure (a structure composed of a single member) as described in Patent Document 1 for example, even when a partial defect occurs in the wiper, it is necessary to replace the entire wiper. For this reason, maintenance costs tend to increase.
[0006] In view of the above circumstances, at least one embodiment of the present invention aims to provide a wiping device and a rolling facility capable of reducing the cost for maintenance.
Means for Solving the Problems
[0007] A wiping device according to at least one embodiment of the present invention is A wiping device for removing liquid from the surface of a metal strip being transported, The strip is provided with a wiping section that can contact the rolled surface, The wiping portion is provided so as to be able to contact the rolling surface and includes a plurality of segmented members that extend along the direction of extension of the wiping portion. The plurality of divided members are arranged along the extending direction of the wiping portion.
[0008] Furthermore, the rolling equipment according to at least one embodiment of the present invention is Rolling rolls for rolling metal strips, The wiping device described above is provided downstream of the rolling roll in the conveying direction of the strip, It is equipped with. [Effects of the Invention]
[0009] According to at least one embodiment of the present invention, a wiping device and rolling equipment capable of reducing maintenance costs are provided. [Brief explanation of the drawing]
[0010] [Figure 1] This is a schematic diagram of a rolling mill according to one embodiment. [Figure 2] This is a schematic plan view of a wiping device according to one embodiment. [Figure 3] This is a schematic cross-sectional view of a wiping device according to one embodiment, along the direction of conveyance of the strip. [Figure 4] This is a schematic plan view of a wiping device according to one embodiment. [Figure 5] This is a schematic plan view of a wiping device according to one embodiment. [Figure 6] This is a schematic plan view of a wiping device according to one embodiment. [Figure 7] This is a schematic plan view of a wiping device according to one embodiment. [Figure 8] It is a schematic plan view of a wiping device according to an embodiment. [Figure 9] It is a schematic cross-sectional view along the conveying direction of the strip of a wiping device according to an embodiment. [Figure 10] It is a view showing the A-A cross-section of FIG. 9. [Figure 11] It is a schematic plan view of a wiping device according to an embodiment.
MODE FOR CARRYING OUT THE INVENTION
[0011] 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 the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples.
[0012] FIG. 1 is a schematic view of a rolling facility provided with a wiping device according to some embodiments. As shown in FIG. 1, a rolling facility 1 according to an embodiment includes a rolling mill 4 including rolling rolls 2 for rolling a strip S of metal (such as steel), and a wiping device 10 provided on the downstream side of the rolling rolls 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 rolls 2, and may include guide rolls 6 provided between the rolling rolls 2 and the winding device 8 for guiding the strip S to the rolling rolls 2. The wiping device 10 may be provided between the rolling rolls 2 and the winding device 8 in the conveying direction of the strip S.
[0013] In the rolling mill 4, rolling is performed while supplying a 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 a liquid such as a coolant from the surface of the strip S by wiping.
[0014] Figures 2 and 4 to 8 are schematic plan views of a wiping device 10 according to an embodiment. Figures 3 and 9 are schematic cross-sectional views of the wiping device 10 according to an embodiment along the conveying direction of the strip S.
[0015] As shown in FIGS. 1, 3, and 9, the wiping device 10 includes a wiping portion 12 that is provided to be able to contact the rolling surface of the strip S. The wiping portion 12 is provided to extend along a direction orthogonal to the conveying direction of the strip S (or the width direction of the strip S). The rolling surface of the strip S means the surface of the strip S that is rolled by the rolling roll 2 or the surface that has been rolled by the rolling roll 2 (the surface that contacts / has contacted the outer peripheral surface of the rolling roll 2).
[0016] As shown in FIGS. 2 and 4 to 8, the wiping portion 12 includes a plurality of divided members 14 arranged along the extending direction of the wiping portion 12 (the direction of the straight line L in the figure). Each of the plurality of divided members 14 is provided to be able to contact the rolling surface of the strip S and is provided to extend along the extending direction of the wiping portion 12 (the direction of the straight line L).
[0017] As shown in FIGS. 2, 3, and 9, the plurality of divided members 14 may be held by a single holding portion 40. In FIG. 2, the holding portion 40 is shown by a dashed line, and in FIGS. 4 to 8, the illustration of the holding portion 40 is omitted. In the exemplary embodiment shown in FIGS. 3 and 9, the holding portion 40 extends along the extending direction of the wiping portion 12 (the longitudinal direction of the holding portion 40) and has a groove 42 that opens toward the strip S, and a part of each of the plurality of divided members 14 is inserted into the groove 42. The holding portion 40 is provided with a plurality of screw holes 44 that extend in a direction intersecting the extending direction of the wiping portion 12 (the longitudinal direction of the holding portion 40) and open into the groove 42. Note that one or more screw holes 44 are provided corresponding to each of the plurality of divided members 14. Each of the plurality of divided members 14 is attached to the holding portion 40 by being pressed against the inner wall surface of the groove 42 of the holding portion 40 by a plurality of bolts 52 that are respectively screwed into the plurality of screw holes 44.
[0018] As described above, since the wiping section 12 that contacts the rolled surface of the strip S during wiping includes multiple segmented members 14, if any of the segmented members 14 are damaged, the wiping section 12 can be partially replaced (only the segmented member 14 that is damaged) can be replaced. Therefore, the maintenance costs of the wiping device 10 can be reduced.
[0019] As shown in Figures 2 and 4 to 8, a pair of adjacent dividing members 14 in the extending direction of the wiping section 12 may be arranged so that their end faces face each other in that extending direction. In this case, the size of the wiping section 12 in the conveying direction of the strip S can be reduced compared to the case where one end of an adjacent pair of dividing members 14 overlaps when viewed from the conveying direction of the strip S. Therefore, a compact wiping device 10 can be obtained.
[0020] Alternatively, although not specifically shown in the figures, when viewed from the direction of transport of the strip S, the adjacent ends of a pair of dividing members 14 may overlap in the direction of extension of the wiping section 12. In other words, adjacent dividing members 14 may be offset in the direction of transport of the strip S.
[0021] In some embodiments, as shown in Figures 4 to 8, for example, the plurality of dividing members 14 include a first member 20 having a first end face 22 in the extending direction of the wiping portion 12 (direction of the straight line L), and a second member 30 having a second end face 32 facing the first end face 22 of the first member 20, and provided adjacent to the first member 20 in the extending direction of the wiping portion 12. Each of the first end face 22 and the second end face 32 includes first surfaces 22a, 32a extending along a first direction that intersects the conveying direction of the strip S in a plan view. That is, the first surface 22a included in the first end face 22 and the first surface 32a included in the second end face 32 extend along the same direction (first direction) in a plan view.
[0022] The number of divided members 14 constituting the wiping section 12 is not limited and may be any number of two or more. Also, as shown in Figures 4 to 8, for example, the divided members 14 constituting the wiping section 12 may include a divided member 14 having both a first end face 22 and a second end face 32 (i.e., a divided member 14 that is both a first member 20 and a second member 30). The first end face 22 of such a divided member 14 faces the second end face 32 of another second member 30 (divided member 14) adjacent to the divided member 14 in the extending direction of the wiping section 12, and the second end face 32 of the divided member 14 faces the first end face 22 of another first member 20 (divided member 14) adjacent to the divided member 14 in the extending direction of the wiping section 12.
[0023] In a configuration where the wiping section 12 includes multiple dividing members 14, for example, if the opposing end faces of a pair of adjacent dividing members 14 extend along the conveying direction of the strip S, a gap may form between adjacent dividing members 14. In such cases, coolant may leak downstream in the conveying direction through this gap (and remain on the surface of the strip S). If liquid remains on the surface of the strip S in this way, it can lead to product quality problems. In the above embodiment, the opposing end faces (first end face 22 and second end face 32) of a pair of adjacent dividing members 14 (first member 20 and second member 30) that constitute the wiping section 12 have surfaces (first surfaces 22a, 32a) that extend along a direction (first direction) intersecting the conveying direction of the strip S. Therefore, even if a gap occurs between these end faces, the outflow of liquid (coolant, etc.) to the downstream side in the conveying direction of the strip through the gap is inhibited by the first surfaces 22a, 32a that extend in a direction intersecting the conveying direction of the strip S. As a result, leakage of liquid to the downstream side in the conveying direction of the strip through the gap is unlikely to occur. Thus, a deterioration in the product quality of the strip S can be effectively suppressed.
[0024] As shown in Figures 4 to 8, the first surface 22a of the first end surface 22 and the first surface 32a of the second end surface 32 may extend along a first direction that is inclined with respect to the conveying direction of the strip S in a plan view.
[0025] Furthermore, the first surface 22a of the first end face 22 and the first surface 32a of the second end face 32 may be flat surfaces extending in a straight line in a plan view, as shown in Figures 2 to 8, or they may be curved surfaces that are curved in a plan view.
[0026] In some embodiments, as shown for example in Figure 6 or Figure 7, each of the first end face 22 and the second end face 32 includes second faces 22b, 32b that extend along a second direction intersecting the first direction (the extending direction of the first faces 22a, 32a) in a plan view. That is, the second face 22b included in the first end face 22 and the second face 32b included in the second end face 32 extend along the same direction (the second direction) in a plan view. As shown in Figure 6 or Figure 7, one end of the first face 22a of the first end face 22 and one end of the second face 22b may be connected, or one end of the first face 32a of the second end face 32 and one end of the second face 32b may be connected.
[0027] In the exemplary embodiment shown in Figure 7, each of the first end face 22 and the second end face 32 includes third faces 22c and 32c that extend in a direction intersecting the second direction (the extending direction of the second faces 22b and 32b) in a plan view. That is, the third face 22c included in the first end face 22 and the third face 32c included in the second end face 32 extend in the same direction in a plan view. As shown in Figure 7, one end of the second face 22b of the first end face 22 may be connected to one end of the third face 22c, or one end of the second face 32b of the second end face 32 may be connected to one end of the third face 32c.
[0028] According to the above embodiment, the opposing end faces (first end face 22 and second end face 32) of a pair of adjacent dividing members 14, 14 (first member 20 and second member 30) among the multiple dividing members 14 constituting the wiping section 12 include the first faces 22a, 32a and the second faces 22b, 32b that extend along a second direction intersecting the first direction in which the first faces 22a, 32a extend. Therefore, even if liquid enters the gap between the first faces 22a, 32a, it is difficult for the liquid in the gap to move into the gap between the second faces 22b, 32b. Thus, even if a gap occurs between the end faces of the dividing members 14, 14 (first end face 22 and second end face 32), leakage of liquid through the gap can be suppressed more effectively.
[0029] The first surface 22a and the second surface 22b (and the third surface 22c) of the first end surface 22, or the first surface 32a and the second surface 32b (and the third surface 32c) of the second end surface 32, may form a zigzag shape in plan view (see Figures 6 and 7), or they may form a smooth curved surface.
[0030] In some embodiments, the entirety of the first end face 22 of the first member 20 and the entirety of the second end face 32 of the second member 30 may be in contact with each other. That is, the first end face 22 of the first member 20 and the second end face 32 of the second member 30 may have corresponding shapes to each other.
[0031] According to the above embodiment, the entire opposing end faces (first end face 22 and second end face 32) of a pair of adjacent dividing members 14, 14 (first member 20 and second member 30) can come into contact with each other. Therefore, even if a gap occurs between the end faces of the dividing members (first end face 22 and second end face 32), leakage of liquid through the gap can be suppressed more effectively.
[0032] In some embodiments, as shown in Figure 9, for example, an elastic member 60 capable of applying a biasing force toward the strip S to the divided member 14 is provided between the holding portion 40 for holding the divided member 14 and at least one of the divided member 14. In one embodiment, one or more elastic members 60 capable of applying a biasing force toward the strip S to each of the divided member 14 is provided between the holding portion 40 and the divided member 14.
[0033] In the exemplary embodiment shown in Figure 9, the elastic member 60 is provided inside the groove 42 of the holding portion 40 (the groove into which a part of the divided member 14 is inserted). The elastic member 60 may also be provided between the holding portion 40 and the divided member 14 in the vertical direction. The elastic member 60 may include a spring or rubber.
[0034] In rolling equipment, the thickness of the strip S is not perfectly uniform in the width direction, and some degree of variation may occur. In this regard, according to the above embodiment, at least one of the multiple dividing members 14 arranged in the width direction is biased toward the strip S by an elastic member 60 provided between the dividing member 14 and the holding part 40. Therefore, even if there is a variation in the thickness of the strip S in the width direction, the dividing member 14 is biased by the elastic member 60, which adjusts its position in the height direction and presses it against the surface of the strip S at each position in the width direction. Thus, wiping unevenness in the width direction can be effectively suppressed.
[0035] In some embodiments, as shown in Figure 9, for example, the wiping device 10 includes a pressing portion 50 for applying a pressing force to the first member 20 (divided member 14) toward the holding portion 40 along a direction perpendicular to the extending direction of the wiping portion 12 in a plan view. As shown in Figure 9, the pressing portion 50 may include a bolt 52 that is screwed into a threaded hole 44 provided in the holding portion 40, and a pressing member 54 provided at the tip of the bolt 52 for pressing the first member 20 (divided member 14). The bolt 52 may be rotatably attached to the pressing member 54.
[0036] Figure 10 shows the cross-section AA of Figure 9. In some embodiments, as shown in Figures 9 and 10, for example, the first member 20 (divided member 14) has an inclined surface 16 that is inclined with respect to the extending direction of the wiping portion 12 in a plan view, and the pressing portion 50 is configured to press against the inclined surface 16.
[0037] In the exemplary embodiments shown in Figures 9 and 10, the pressing member 54 of the pressing portion 50 has a surface 55 along the inclined surface 16, and the pressing portion 50 is configured to press the first member 20 through this surface 55.
[0038] In the exemplary embodiments shown in Figures 9 and 10, the first member 20 (divided member 14) includes a side surface 18 extending in the direction of the wiping portion 12 in a plan view, and a recess 26 provided so as to be recessed from the side surface 18. Furthermore, the bottom surface 28 of the recess 26 includes the inclined surface 16 described above.
[0039] Here, Figure 11 is a schematic plan view of a wiping device 10 according to one embodiment, and is a diagram for explaining the operation of the wiping device 10 according to one embodiment. In the above embodiment, the first member 20 has an inclined surface 16 that is inclined with respect to the extending direction of the wiping portion 12 in a plan view, and this inclined surface 16 is pressed by the pressing portion 50. The pressing force (pressing force) applied to the inclined surface 16 in this way has a component F that acts to press the first member 20 toward the second member 30. A (See Figures 10 and 11). Therefore, the gap between the end faces of the divided member 14 (first end face 22 and second end face 32) becomes narrower, which can more effectively suppress liquid leakage through the gap.
[0040] In some embodiments, as shown in Figure 11, for example, each of the divided members 14 (first members 20) having a first end face 22 has an inclined surface 16 extending in the same direction, and the pressing portion 50 may be configured to apply a pressing force to each of the first members 20.
[0041] According to the above embodiment, among the plurality of divided members 14, the inclined surfaces 16 provided on each divided member 14 (first member 20) having a first end face 22 (an end face having a first surface 22a extending along the first direction) extend in the same direction inclined with respect to the extending direction of the wiping portion 12. Therefore, the pressing force applied to each inclined surface 16 by the pressing portion 50 presses each first member 20 toward the adjacent second member 30 in the same direction. As a result, the gaps between the end faces of the divided members 14 (first end face 22 and second end face 32) tend to narrow, and leakage of liquid through these gaps can be suppressed more effectively.
[0042] In some embodiments, as shown in Figure 9, for example, the recess 26, which is provided so as to be recessed from the side surface 18 of the first member 20 (divided member 14), may extend in the vertical direction. The pressing portion 50 may be configured to press against the bottom surface 28 (inclined surface 16) of the recess 26 that extends in the vertical direction. Here, the length of the recess 26 in the vertical direction is longer than the length of the portion of the pressing portion 50 that contacts the inclined surface 16 (the surface 55 of the pressing member 54 in the illustrated embodiment) in the vertical direction. Also, the length of the recess 26 in the extending direction of the wiping portion 12 is slightly longer than the length of the portion of the pressing portion 50 that contacts the inclined surface 16 (the surface 55 of the pressing member 54 in the illustrated embodiment) in that extending direction.
[0043] In the above embodiment, the recess 26 provided on the side surface 18 of the dividing member 14 extends along the vertical direction, so that the recess 26 can guide the vertical movement of the pressing portion 50 against the dividing member 14. Therefore, by providing the elastic member 60 between the holding portion 40 and the dividing member 14, the dividing member 14 can move smoothly up and down according to the thickness of the strip plate S, etc., due to the biasing force of the elastic member 60 while the pressing force of the pressing portion 50 acts on the dividing member 14.
[0044] In some embodiments, as shown in Figures 5 to 8, for example, the wiping section 12 extends in a direction inclined with respect to the width direction of the strip S. Alternatively, the wiping section 12 extends in a direction inclined with respect to the direction perpendicular to the conveying direction of the strip S.
[0045] According to the above embodiment, since the wiping section 12 extends in a direction inclined with respect to the width direction of the strip, the liquid removed from the surface of the strip S by the wiping section 12 and the foreign matter contained in the liquid are less likely to accumulate upstream of the wiping section 12 and are more easily discharged toward the side of the strip S along the inclined wiping section 12. Therefore, the discharge of foreign matter contained in the liquid (solid matter mixed in the coolant (such as metal powder generated by the wear of the rolling rolls and strip, or wear debris from the wiping section 12)) can be promoted. Thus, it is possible to effectively suppress scratches on the surface of the strip S caused by foreign matter accumulating upstream of the wiping section 12.
[0046] In some embodiments, for example as shown in Figure 8, the wiping section 12 includes a first section 12A and a second section 12B adjacent to the first section 12A and located downstream of the first section 12A in the conveying direction of the strip S. The first section 12A and the second section 12B each extend in a direction inclined with respect to the width direction of the strip S. The inclination angle θ2 of the second section 12B with respect to the width direction (or the direction perpendicular to the conveying direction of the strip S) is greater than the inclination angle θ1 of the first section 12A with respect to the width direction (or the direction perpendicular to the conveying direction of the strip S). In Figure 8, the straight line L0 represents the width direction (or the direction perpendicular to the conveying direction of the strip S) of the strip S, the straight line L1 represents the extension direction of the first section 12A, and the straight line L2 represents the extension direction of the second section 12B.
[0047] In the case of a wiping section 12 that extends in a direction inclined with respect to the width direction of the sheet, the liquid swept by the wiping section 12 flows along the wiping section 12 and collects near the downstream portion of the wiping section 12. As a result, the liquid level becomes high at this position, and there is a risk that the liquid may overflow and flow out to the downstream side of the wiping section 12, especially when the rolling equipment is operating at high speed. In this regard, according to the above embodiment, the wiping section 12 has a first portion 12A that is inclined with respect to the width direction of the sheet and a second portion 12B whose inclination angle with respect to the width direction is greater than that of the first portion 12A. Therefore, the liquid that collects near the downstream end of the first portion 12A is easily discharged smoothly toward the second portion 12B located further downstream. Thus, it is possible to suppress the overflow of liquid in the wiping section 12 and its flow out to the downstream side. As a result, it is possible to effectively suppress the deterioration of the product quality of the sheet metal S.
[0048] The contents described in each of the above embodiments can be understood, for example, as follows:
[0049] (1) A wiping device (10) according to at least one embodiment of the present invention is A wiping device for removing liquid from the surface of a metal strip (S) being transported, The strip is provided with a wiping section (12) that can contact the rolled surface, The wiping portion is provided so as to be able to contact the rolling surface and includes a plurality of divided members (14) that extend along the extending direction of the wiping portion. The plurality of divided members are arranged along the extending direction of the wiping portion.
[0050] According to the configuration described in (1) above, the wiping section that contacts the rolled surface of the strip during wiping includes multiple segmented members. Therefore, if any of the segmented members are damaged or defective, it is possible to partially replace the wiping section (replace only the segmented member that is damaged or defective). Thus, the maintenance costs associated with the wiping device can be reduced.
[0051] (2) In some embodiments, in the configuration of (1) above, The plurality of divided members are A first member (20) having a first end face (22) in the extending direction, A second member (30) is provided adjacent to the first member in the extending direction, having a second end face (32) facing the first end face of the first member, Includes, Each of the first and second end faces includes a first surface (22a, 32a) extending along a first direction that intersects the conveying direction of the strip in a plan view.
[0052] According to the configuration of (2) above, the opposing end faces (first end face and second end face) of a pair of adjacent dividing members among the multiple dividing members constituting the wiping section have a surface (first surface) that extends along a direction (first direction) that intersects the conveying direction of the strip. Therefore, even if a gap occurs between these end faces, leakage of liquid (coolant, etc.) to the downstream side in the conveying direction of the strip through the gap is unlikely to occur. Thus, a deterioration in the product quality of the strip can be effectively suppressed.
[0053] (3) In some embodiments, in the configuration of (2) above, Each of the first and second end faces includes a second face (22b, 32b) extending along a second direction that intersects the first direction in a plan view.
[0054] According to the configuration of (3) above, the opposing end faces (first end face and second end face) of a pair of adjacent divided members among the multiple divided members constituting the wiping section include the first surface and the second surface extending along the second direction intersecting the first direction in which the first surface extends. Therefore, even if liquid enters the gap between the first surfaces, it is difficult for the liquid in the gap to move into the gap between the second surfaces. Thus, even if a gap occurs between the end faces of the divided members, leakage of liquid through the gap can be suppressed more effectively.
[0055] (4) In some embodiments, in the configuration of (2) or (3) above, The entirety of the first end face and the entirety of the second end face are in contact with each other.
[0056] According to the configuration described in (4) above, the entire opposing end faces (first end face and second end face) of a pair of adjacent divided members can come into contact with each other. Therefore, even if a gap occurs between the end faces of the divided members, leakage of liquid through the gap can be suppressed more effectively.
[0057] (5) In some embodiments, in any of the configurations (2) to (4) above, The wiping device is A holding portion (40) for holding the plurality of divided members, The first member is provided with a pressing portion (50) for applying a pressing force to the first member toward the holding portion along a direction perpendicular to the extending direction in a plan view, Equipped with, The first member has an inclined surface (16) that is inclined with respect to the extending direction in a plan view, The pressing portion is configured to press against the inclined surface.
[0058] According to the configuration of (5) above, the first member has an inclined surface that is inclined with respect to the extending direction of the wiping portion in a plan view, and this inclined surface is pressed by the pressing portion. The pressing force applied to the inclined surface in this way has a component that acts to press the first member toward the second member. Therefore, the gap between the end faces of the divided members (first end face and second end face) is narrowed, and thus leakage of liquid through the gap can be suppressed more effectively.
[0059] (6) In some embodiments, in the configuration of (5) above, The pressing portion is, A bolt (52) is screwed into a threaded hole provided in the holding portion, A pressing member (54) is provided at the tip of the bolt and has a surface that conforms to the inclined surface, Includes.
[0060] According to the configuration of (6) above, a pressing portion can be formed with a simple configuration that includes a bolt screwed into a threaded hole provided in the holding portion and a pressing member provided at the tip of the bolt.
[0061] (7) In some embodiments, in the configuration of (5) or (6) above, Of the plurality of divided members, each of the divided members having the first end face has the inclined surface extending in the same direction, The pressing portion is configured to apply the pressing force to each of the first members.
[0062] According to the configuration of (7) above, the inclined surfaces provided on each of the divided members (first members) having a first end face (an end face having a first surface extending along the first direction) extend in the same direction inclined with respect to the extending direction of the wiping portion. Therefore, the pressing force applied to each inclined surface by the pressing portion presses each first member toward the adjacent second member in the same direction. As a result, the gaps between the end faces of the divided members (first end face and second end face) tend to narrow, and leakage of liquid through these gaps can be suppressed more effectively.
[0063] (8) In some embodiments, in the configuration of any one of the above items (1) to (7), The wiping portion extends in a direction inclined with respect to the width direction of the strip.
[0064] According to the configuration of (8) above, the wiping section extends in a direction inclined with respect to the width direction of the strip, so that the liquid removed from the surface of the strip by the wiping section and the foreign matter contained in the liquid are less likely to accumulate upstream of the wiping section and are more easily discharged toward the side of the strip along the inclined wiping section. Therefore, according to the configuration of (8) above, the discharge of foreign matter contained in the liquid (solid matter mixed in the coolant (such as metal powder generated by the wear of the rolling rolls and strip, or wear debris from the wiping section)) can be promoted. Thus, it is possible to effectively suppress scratches on the surface of the strip caused by foreign matter accumulating upstream of the wiping section.
[0065] (9) In some embodiments, in the configuration of (8) above, The wiping section is, Part 1 (12A), It includes a second portion (12B) adjacent to the first portion and located downstream of the first portion in the conveying direction of the strip, The inclination angle (θ2) of the second portion with respect to the width direction of the plate is greater than the inclination angle (θ1) of the first portion with respect to the width direction of the plate.
[0066] As described in (8) above, in the case of a wiping section that extends in a direction inclined with respect to the width of the sheet, the liquid swept by the wiping section flows along the wiping section and collects near the downstream portion of the wiping section. As a result, the liquid level becomes high at this position, and when the rolling equipment is operated at high speed, the liquid may overflow and flow out to the downstream side of the wiping section. In this regard, according to the configuration described in (9) above, the wiping section has a first portion that is inclined with respect to the width of the sheet and a second portion whose angle of inclination with respect to the width of the sheet is greater than that of the first portion. As a result, the liquid that collects near the downstream end of the first portion is easily discharged smoothly toward the second portion located further downstream. Therefore, it is possible to suppress the overflow of liquid in the wiping section and flow out to the downstream side. As a result, it is possible to effectively suppress the deterioration of the product quality of the sheet metal.
[0067] (10) In some embodiments, in any of the configurations (1) to (9) above, The wiping device is A holding portion (40) for holding the plurality of divided members, An elastic member (60) is provided between at least one of the plurality of divided members and the holding portion, and is capable of applying a biasing force toward the strip plate to at least one of the plurality of divided members, It is equipped with.
[0068] In rolling equipment, the thickness of the strip is not perfectly uniform in the width direction, and some degree of variation may occur. According to the configuration of (10) above, at least one of the multiple dividing members arranged in the width direction is biased toward the strip by an elastic member provided between the dividing member and the holding part. Therefore, even if there is a variation in the thickness of the strip, the dividing member is biased by the elastic member, which adjusts its position in the height direction and presses it against the surface of the strip at each position in the width direction. Thus, wiping unevenness in the width direction can be effectively suppressed.
[0069] (11) In some embodiments, in the configuration of (10) above, The wiping device is The plurality of divided members are provided with a pressing portion for applying a pressing force to at least one of the plurality of divided members toward the holding portion along a direction perpendicular to the extending direction in a plan view, At least one of the plurality of divided members is In a plan view, the side surface (18) extends along the extension direction, It has a recess (26) that is provided so as to be recessed from the side and extends along the vertical direction, The pressing portion is configured to press against the bottom surface (28) of the recess.
[0070] According to the configuration of (11) above, the bottom surface of the recess provided on the side surface of the divided member has an inclined surface that is inclined with respect to the extending direction of the wiping portion in a plan view, and this bottom surface is pressed by the pressing portion, so the gap between the end faces of the divided members is narrowed, and thus liquid leakage through the gap can be effectively suppressed. In addition, since the recess provided on the side surface of the divided member extends along the vertical direction, the recess can guide the vertical movement of the pressing portion against the divided member. Therefore, while applying pressing force from the pressing portion to the divided member, the divided member can move smoothly up and down according to the thickness of the strip.
[0071] (12) A rolling mill (1) according to at least one embodiment of the present invention is A rolling mill (2) for rolling a metal strip, A wiping device (10) according to any one of the above items (1) to (11) is provided downstream of the rolling roll in the conveying direction of the strip, It is equipped with.
[0072] According to the configuration described in (12) above, the wiping section that contacts the rolled surface of the strip during wiping includes multiple segmented members. Therefore, if any of the segmented members are damaged or defective, it is possible to partially replace the wiping section (replace only the segmented member that is damaged or defective). Thus, the maintenance costs associated with the wiping device can be reduced.
[0073] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and also includes modified forms of the embodiments described above, as well as forms that combine these forms as appropriate.
[0074] In this specification, expressions describing relative or absolute arrangements such as "in a certain direction," "along a certain direction," "parallel," "orthogonal," "center," "concentric," or "coaxial" shall not only describe such arrangements strictly, but also describe states of relative displacement with tolerances or angles or distances that allow for the same function to be achieved. For example, expressions such as "identical," "equal," and "homogeneous" that describe things being in an equal state not only describe a state of being strictly equal, but also describe a state in which there is a tolerance or a difference that is sufficient to achieve the same function. Furthermore, in this specification, expressions describing shapes such as quadrilaterals and cylindrical shapes shall not only represent geometrically precise quadrilaterals and cylindrical shapes, but also shapes that include uneven surfaces, chamfered surfaces, etc., to the extent that the same effect can be achieved. Furthermore, in this specification, the expressions “equipment,” “includes,” or “possess” of a component are not exclusive expressions that exclude the existence of other components. [Explanation of Symbols]
[0075] 1. Rolling equipment 2 Rolling Rolls 4. Rolling mill 6 Guide Roll 8. Winding device 10 Wiping device 12 Wiping section 12A Part 1 12B 2nd part 14 divided members 16 Slope 18 Side view 20 First Member 22 First end surface 22a 1st page 22b 2nd side 22c 3rd page 26 recesses 28 Bottom 30 Second Member 32 Second end face 32a 1st page 32b 2nd side 32c 3rd page 40 Holding part 42 Groove 44 screw holes 50 Pressing part 52 volts 54 Pressing member 55 sides 60 Elastic members S strip
Claims
1. A wiping device for removing liquid from the surface of a metal strip being transported, The device includes a wiping portion that extends along an extending direction intersecting the conveying direction of the strip in a plan view and is provided to be in contact with the rolled surface of the strip, The wiping portion is provided so as to be able to contact the rolling surface and includes a plurality of divided members that extend along the extending direction of the wiping portion. The plurality of divided members are arranged along the extending direction of the wiping portion, The plurality of divided members are A first member having a first end face in the extending direction, A second member having a second end face opposite to the first end face of the first member, and provided adjacent to the first member in the extending direction, Includes, Each of the first end face and the second end face is, In a plan view, the strip has a first surface extending along a first direction intersecting the transport direction, A second surface extending along a second direction intersecting the first direction in a plan view, Wiping device.
2. The entirety of the first end face and the entirety of the second end face are in contact with each other. The wiping device according to claim 1.
3. A wiping device for removing liquid from the surface of a metal strip being transported, The device includes a wiping portion that extends along an extending direction intersecting the conveying direction of the strip in a plan view and is provided to be in contact with the rolled surface of the strip, The wiping portion is provided so as to be able to contact the rolling surface and includes a plurality of divided members that extend along the extending direction of the wiping portion. The plurality of divided members are arranged along the extending direction of the wiping portion, The plurality of divided members are A first member having a first end face in the extending direction, A second member having a second end face opposite to the first end face of the first member, and provided adjacent to the first member in the extending direction, Includes, A holding portion for holding the plurality of divided members, A pressing portion for applying a pressing force to the first member toward the holding portion along a direction perpendicular to the extending direction in a plan view, Equipped with, The first member has an inclined surface that is inclined with respect to the extending direction in a plan view, The pressing portion is configured to press against the inclined surface. Wiping device.
4. The pressing portion is, A bolt that is screwed into a threaded hole provided in the holding part, A pressing member provided at the tip of the bolt and having a surface aligned with the inclined surface, including The wiping device according to claim 3.
5. Of the plurality of divided members, each of the divided members having the first end face has the inclined surface extending in the same direction, The pressing portion is configured to apply the pressing force to each of the first members. The wiping device according to claim 3 or 4.
6. The wiping portion extends in a direction inclined with respect to the width direction of the strip. A wiping device according to any one of claims 1 to 5.
7. A wiping device for removing liquid from the surface of a metal strip being transported, The device includes a wiping portion that extends along an extending direction intersecting the conveying direction of the strip in a plan view and is provided to be in contact with the rolled surface of the strip, The wiping portion is provided so as to be able to contact the rolling surface and includes a plurality of divided members that extend along the extending direction of the wiping portion. The plurality of divided members are arranged along the extending direction of the wiping portion, The plurality of divided members are A first member having a first end face in the extending direction, A second member having a second end face opposite to the first end face of the first member, and provided adjacent to the first member in the extending direction, Includes, The wiping portion extends in a direction inclined with respect to the width direction of the strip. The wiping section is, Part 1 and, It includes a second portion adjacent to the first portion and located downstream of the first portion in the conveying direction of the strip, The inclination angle of the second portion with respect to the width direction of the plate is greater than the inclination angle of the first portion with respect to the width direction of the plate. The connection between the first part and the second part is located between both ends of the wiping part in the transport direction. Piping device.
8. A wiping device for removing liquid from the surface of a metal strip being transported, The device includes a wiping portion that extends along an extending direction intersecting the conveying direction of the strip in a plan view and is provided to be in contact with the rolled surface of the strip, The wiping portion is provided so as to be able to contact the rolling surface and includes a plurality of divided members that extend along the extending direction of the wiping portion. The plurality of divided members are arranged along the extending direction of the wiping portion, The plurality of divided members are A first member having a first end face in the extending direction, A second member having a second end face opposite to the first end face of the first member, and provided adjacent to the first member in the extending direction, Includes, A holding portion for holding the plurality of divided members, An elastic member provided between at least one of the plurality of divided members and the holding portion, capable of applying a biasing force toward the strip plate to at least one of the plurality of divided members, Equipped with Wiping device.
9. The plurality of divided members are provided with a pressing portion for applying a pressing force to at least one of the plurality of divided members toward the holding portion along a direction perpendicular to the extending direction in a plan view, At least one of the plurality of divided members is In a plan view, the side surface extends along the extension direction, It has a recess that is provided so as to be recessed from the side and extends along the vertical direction, The pressing portion is configured to press against the bottom surface of the recess. The wiping device according to claim 8.
10. Rolling rolls for rolling metal strips, A wiping device according to any one of claims 1 to 9, provided downstream of the rolling roll in the conveying direction of the strip, A rolling mill equipped with the following features.
Citation Information
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