Rolling equipment

Abstract

The rolling equipment comprises: a support portion extending along the plate width direction of a steel plate being rolled; a thickness measuring portion configured to be supported by the support portion and to measure the thickness of the steel plate; and a heating portion configured to be supported by the support portion at positions on both sides of the thickness measuring portion in the plate width direction and to heat both end portions of the steel plate.

Description

Technical Field

[0001] The present disclosure relates to a rolling equipment. Background Art

[0002] In a rolling equipment for rolling steel plates, in order to obtain a product having a desired shape and quality, various devices are used in addition to a rolling mill including rolling rolls. Examples of such devices include a device for measuring the thickness of a steel plate, a device for heating the end of a steel plate in the plate width direction in order to suppress edge cracks (edge ​​fractures) at the plate end, and the like.

[0003] Patent Document 1 discloses a device that is installed in a production line for rolling steel plates and measures the thickness distribution of steel plates in the plate width direction. The device includes an X-ray generator that irradiates X-rays in the thickness direction of the steel plates toward the steel plates, and a detector that is installed on the opposite side of the X-ray generator with the steel plates sandwiched therebetween, and measures the thickness distribution of the steel plates based on the attenuation of the X-rays detected by the detector.

[0004] Patent Document 2 discloses a heating device provided in a production line for rolling steel plates and used to heat both ends in the plate width direction. The heating device includes a pair of inductors provided so as to non-contactly sandwich both ends of the steel plate in the plate width direction from both sides in the plate thickness direction, and induction heating is performed on both ends of the steel plate by passing current through the coils of the inductors.

[0005] Prior Art Literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2014-21099

[0008] Patent Document 2: Japanese Patent Application Publication No. 2015-139810 Summary of the invention

[0009] Problems to be solved by the invention

[0010] However, in the case where the two functions of measuring the thickness of the steel plate and heating the plate ends are to be realized in the rolling equipment, if both the thickness measuring device and the heating device at the plate ends are provided, the installation space becomes larger. In the case of using equipment that uses electromagnetic waves as a heating device, in order to avoid the influence of electromagnetic waves, it is necessary to ensure the distance between the heating device and the thickness gauge, which sometimes leads to a larger installation space. In addition, since the space near the rolling mill is limited, it is difficult to install both the thickness measuring device and the heating device at the plate ends near the rolling mill. In this regard, in Patent Documents 1 and 2, it is considered to install only one of the thickness measuring device and the heating device at the plate ends, and it is not envisaged to install both devices in the rolling equipment.

[0011] In view of the above circumstances, an object of at least one embodiment of the present invention is to provide a rolling equipment capable of achieving two functions of measuring the thickness of a steel plate and heating the plate end portion within a limited space.

[0012] Solutions to Solve Problems

[0013] A rolling mill according to at least one embodiment of the present invention includes:

[0014] A support portion extending along a plate width direction of the rolled steel plate;

[0015] a thickness measuring portion configured to be supported by the supporting portion and to measure the thickness of the steel plate; and

[0016] The heating section is supported by the support section at positions on both sides sandwiching the thickness measuring section in the plate width direction, and is configured to heat both end portions of the steel plate.

[0017] Effects of the Invention

[0018] According to at least one embodiment of the present invention, there is provided a rolling equipment capable of realizing two functions of measuring the thickness of a steel plate and heating the end portion of the plate within a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic configuration diagram of a rolling facility according to one embodiment.

[0020] Figure 2 This is a schematic structural diagram of a thickness measurement / heating device (rolling equipment) according to one embodiment.

[0021] Figure 3 This is a schematic structural diagram of a thickness measurement / heating device (rolling equipment) according to one embodiment.

[0022] Figure 4AThis is a schematic diagram showing an enlarged portion of a thickness measurement / heating device (rolling equipment) according to an embodiment, including a heating unit.

[0023] Figure 4B It is used to illustrate Figure 4A A diagram showing the operation of the thickness measuring / heating device (rolling equipment).

[0024] Figure 5 This is a schematic diagram showing an enlarged portion of a thickness measurement / heating device (rolling equipment) according to an embodiment, including a heating unit.

[0025] Figure 6 This is a schematic diagram showing an enlarged portion of a thickness measurement / heating device (rolling equipment) according to an embodiment, including a heating unit. DETAILED DESCRIPTION

[0026] Hereinafter, several embodiments of the present invention will be described with reference to the drawings. However, the dimensions, materials, shapes, and relative arrangements 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.

[0027] Figure 1 This is a schematic structural diagram of a rolling equipment according to an embodiment. As shown in the figure, the rolling equipment 1 includes: a rolling mill 2 for rolling a steel plate S; and a thickness measuring / heating device 10, which is arranged on the upstream side of the rolling mill 2 in the conveying direction of the steel plate S. In addition, the rolling equipment 1 includes: a coiler (not shown) for coiling the steel plate S toward the rolling mill 2; and a coiler 8 for coiling the steel plate S rolled by the rolling mill 2. Figure 1 In the rolling equipment 1 shown, in the conveying direction of the steel plate S, a conveying roller 6 for conveying the steel plate S is provided between the unwinder and the rolling mill 2. In the conveying direction of the steel plate S, a deflector roll 7 for guiding the steel plate S toward the coiler 8 is provided between the rolling mill 2 and the coiler 8.

[0028] The rolling mill 2 includes at least one rolling stand 3 (3A to 3E), each of which includes a pair of rolling rolls 4 provided so as to sandwich the steel sheet S from both sides. Figure 1 The rolling mill 2 shown includes five rolling stands 3A to 3E arranged in the conveying direction of the steel plate S. The steel plate S unwinding from the unwinder is sequentially rolled by the rolling stands 3A to 3E while being conveyed by the conveying rollers 6. The steel plate S passing through the rolling stands 3A to 3E is coiled by the coiler 8.

[0029] The thickness measuring / heating device 10 includes a thickness measuring unit 20 for measuring the thickness of the steel plate S and a heating unit 26 for heating both ends of the steel plate S in the plate width direction (parts respectively including both ends of the steel plate S in the plate width direction).

[0030] The thickness measuring unit 20 may be configured to measure the thickness of the central portion of the steel sheet S in the sheet width direction or the thickness of the steel sheet S at a position corresponding to the central position in the axial direction of the rolling rolls 4 .

[0031] The signal indicating the thickness of the steel plate S measured by the thickness measuring unit 20 is sent to a control device (not shown), and based on the signal, the rolling mill 2 can be controlled (for example, the gap between the rolling rolls, etc.). In addition, by heating both ends of the steel plate S in the plate width direction by the heating unit 26, edge cracks that may occur in the rolling mill 2 can be suppressed.

[0032] In some embodiments, the thickness measurement / heating device 10 is provided near the rolling mill 2 on the upstream side of the rolling mill 2 in the conveying direction of the steel plate S. In this case, the distance between the thickness measurement / heating device 10 and the rolling mill 2 is short, so that the rolling can be performed during a period in which the temperature of both ends of the steel plate S heated by the heating unit 26 does not drop much. Therefore, edge cracks of the steel plate S can be effectively suppressed. In one embodiment, the thickness measurement / heating device 10 is located on the downstream side of the conveying roller 6 located most downstream among the plurality of conveying rollers 6 in the conveying direction of the steel plate S. That is, in this case, no conveying roller is provided between the thickness measurement / heating device 10 and the rolling mill 2 in the conveying direction.

[0033] Hereinafter, the thickness measurement / heating device 10 will be described in more detail.

[0034] Figure 2 and Figure 3 Each of them is a schematic structural diagram of a thickness measurement / heating device 10 according to an embodiment. Figure 2 and Figure 3 As shown, the thickness measuring / heating device 10 comprises: a support portion 12 extending along the plate width direction of the steel plate S (hereinafter also referred to as the plate width direction); the thickness measuring portion 20 mentioned above, which is supported by the support portion 12; and the heating portion 26 mentioned above, which is supported by the support portion 12 at positions sandwiching the thickness measuring portion 20 in the plate width direction. It should be noted that Figure 2 and Figure 3 In the illustrated exemplary embodiment, the heating portion 26 is supported by the support portion 12 via a first position adjusting portion 30 described later.

[0035] In the above-mentioned embodiment, the thickness measuring unit 20 and the heating unit 26 are arranged along the plate width direction and supported by a single support unit 12 extending along the plate width direction, so that a compact device (thickness measuring / heating device 10) having both the thickness measuring function and the plate end heating function can be obtained. Therefore, both the thickness measurement of the steel plate S and the plate end heating functions can be realized in a limited space such as near the rolling mill 2.

[0036] exist Figure 2 and Figure 3 In the illustrated exemplary embodiment, the support portion 12 includes an upper frame 12A and a lower frame 12B, which extend above and below the steel plate S along the plate width direction of the steel plate S, respectively; and a side frame 12C, which extends in the up-down direction and connects the upper frame 12A and the lower frame 12B. The upper frame 12A and the lower frame 12B are arranged in a mutually opposed manner with the steel plate S sandwiched therebetween. The side frame 12C is arranged to connect one end 12Aa of the upper frame 12A and one end 12Ba of the lower frame 12B.

[0037] In this specification, "up and down direction" means the vertical direction, and "up" and "down" refer to the vertical upper and lower directions, respectively. It should be noted that the up and down direction (vertical direction) is substantially consistent with the thickness direction of the steel plate S being rolled.

[0038] In some embodiments, the thickness measurement unit 20 and the heating unit 26 are each supported by at least one of the upper frame 12A and the lower frame 12B.

[0039] In the above-mentioned embodiment, the thickness measuring part and the heating part can be appropriately supported by a compact support part including an upper frame and a lower frame extending in the board width direction and a side frame connecting the upper frame and the lower frame. Therefore, a compact device having both a thickness measuring function and a board end heating function can be obtained.

[0040] In some embodiments, the thickness measuring unit 20 is configured to measure the thickness of the steel plate S using radiation (X-rays, etc.). Figure 2 and Figure 3 As shown, the thickness measuring unit 20 includes a radiation generating unit 22 and a radiation receiving unit 24 which are provided on both sides of the steel plate S in the thickness direction (or up and down direction) of the steel plate S. The radiation generating unit 22 is configured to generate radiation 101 toward the radiation receiving unit 24. The radiation receiving unit 24 is configured to receive the radiation 101 generated by the radiation generating unit 22 and transmitted through the steel plate S. The thickness measuring unit 20 is configured to measure the thickness of the steel plate S based on the attenuation amount of the radiation 101 detected by the radiation receiving unit 24.

[0041] The radiation receiving unit 24 is supported by one of the upper frame 12A and the lower frame 12B. The radiation generating unit 22 is supported by the other of the upper frame 12A and the lower frame 12B. Figure 2 and Figure 3 In the illustrated exemplary embodiment, the radiation generating section 22 is supported by the upper frame 12A, and the radiation receiving section 24 is supported by the lower frame 12B.

[0042] The vicinity of the rolling mill 2 including the rolling rolls 4 is often a harsh environment with rolling oil and smoke flying in large quantities, rolling rolls vibrating, darkness, etc. In this regard, according to the above-mentioned embodiment, since the thickness measuring unit 20 including the radiation generating unit 22 and the radiation receiving unit 24 and using radiation is used, the thickness of the steel plate S can be appropriately measured near the rolling mill 2 in a harsh environment.

[0043] It should be noted that in Figure 2 and Figure 3 , the center position C of the thickness measuring unit 20 (radiation generating unit 22 and radiation receiving unit 24) in the plate width direction is indicated by a dotted line. During operation of the rolling mill 1, the center position C of the thickness measuring unit 20 substantially coincides with the center position of the steel plate S in the plate width direction.

[0044] The thickness measurement / heating device 10 may include a protector for protecting the thickness measurement unit 20 from the steel sheet S when the steel sheet S unexpectedly moves up and down. Figure 2 and Figure 3 The thickness measuring / heating device 10 shown as the above-mentioned protective member includes: a protective member 14, which is arranged between the steel plate S and the radiation generating unit 22 (thickness measuring unit 20) in the vertical direction; and a protective member 16, which is arranged between the steel plate S and the radiation receiving unit 24 (thickness measuring unit) in the vertical direction. The protective member 14 and the protective member 16 can also be supported by the upper frame 12A and the lower frame 12B, respectively. It should be noted that the protective member 16 arranged below the steel plate S can also have the function of guiding the steel plate S being transported.

[0045] Furthermore, the thickness measurement / heating device 10 may include a cleaner for suppressing or preventing accumulation or adhesion of foreign matter (for example, metal oxide scale generated by rolling of the steel sheet S) to the thickness measurement unit 20 . Figure 2 and Figure 3The thickness measurement / heating device 10 shown in the figure includes a gas ejection pipe 18 as the above-mentioned cleaner, and the gas ejection pipe 18 is configured to eject gas (air, etc.) toward the radiation receiving section 24. By ejecting gas toward the radiation receiving section 24 using the gas ejection pipe 18, it is possible to suppress the accumulation or adhesion of foreign matter to the radiation receiving section 24. Thus, it is possible to suppress the reduction of the measurement accuracy and erroneous detection by the thickness measurement section 20.

[0046] like Figure 2 and Figure 3 As shown, the gas ejection pipe 18 (cleaner) may be provided at a position closer to the side frame 12C than the radiation receiving portion 24 (thickness measuring portion 20) in the plate width direction by a frame (at the Figure 2 and Figure 3 The lower frame 12B) is supported in the middle.

[0047] In some embodiments, the heating unit 26 includes a pair of heaters 28 (28A, 28B) provided on both sides of the thickness measuring unit 20 in the plate width direction. Figure 2 and Figure 3 In the exemplary embodiment shown, a pair of heaters 28 includes: a first heater 28A, which is arranged at a position closer to the side frame 12C than the thickness measuring part 20 in the plate width direction; and a second heater 28B, which is arranged on the side opposite to the side frame 12C with the thickness measuring part 20 sandwiched in the plate width direction.

[0048] In some embodiments, for example, Figure 2 and Figure 3 As shown, the heating unit 26 includes a heater 28 supported by the upper frame 12A. Figure 2 In the exemplary embodiment shown, the first heater 28A and the second heater 28B are supported by the upper frame 12A, respectively. Figure 3 In the illustrated exemplary embodiment, the first heater 28A is supported by the upper frame 12A.

[0049] In the above embodiment, since the heater 28 constituting the heating unit 26 is supported by the upper frame 12A, the heating unit 26 can be provided so as not to interfere with components arranged below the steel plate S (for example, the above-mentioned gas ejection pipe 18 (cleaner), etc.).

[0050] In some embodiments, for example, Figure 3 As shown, the heating unit 26 includes a heater 28, which is provided on the side opposite to the side frame 12C across the thickness measuring unit 20 in the plate width direction and is supported by the lower frame 12B. Figure 3In the illustrated exemplary embodiment, the second heater 28B is provided on the opposite side of the side frame 12C across the thickness measuring portion 20 in the plate width direction, and is supported by the lower frame 12B.

[0051] Assuming that a heating unit 26 (heater 28, etc.) supported by the upper frame 12A is provided in a region on the opposite side of the side frame 12C with the thickness measuring unit 20 sandwiched in the plate width direction, the distance from the side frame 12C to the heating unit 26 becomes longer, and the front end load of the upper frame 12A becomes larger. Therefore, for example, it may be necessary to increase the strength of the support unit 12, such as making the support unit 12 larger. In this regard, in the above-mentioned embodiment, the second heater 28B (heating unit 26) provided on the opposite side of the side frame 12C with the thickness measuring unit 20 sandwiched in the plate width direction is supported by the lower frame 12B, so that the front end load of the upper frame 12A does not increase. Therefore, the necessity of increasing the strength of the support unit 12 is reduced, so that a more compact device can be obtained.

[0052] The heating unit 26 may be configured to heat the steel sheet S by induction heating. That is, the heater 28 (28A, 28B) may be an induction heating device.

[0053] In this case, the steel plate S can be heated quickly and efficiently by induction heating. Therefore, even a small heating device can appropriately heat both ends of the steel plate S (including the plate ends Sa in the plate width direction of the steel plate S) conveyed at high speed.

[0054] In some embodiments, the heating unit 26 is configured to be movable in the board width direction relative to the support unit 12. Figure 2 and Figure 3 In the exemplary embodiment shown, the heater 28 (heating unit 26) is supported by the support unit 12 via the first position adjustment unit 30 so as to be movable in the plate width direction. Figure 2 and Figure 3 In FIG. 1 , two types of steel plates having different plate widths are indicated by a solid line (steel plate S) and a dotted line (steel plate S′), and the positions of the heaters 28 (heating units 26 ) corresponding to the two types of steel plates are indicated by a solid line and a dotted line, respectively.

[0055] Here, Figure 4A , Figure 5 and Figure 6 Each of the schematic diagrams is an enlarged view of a portion including a heating unit 26 of a thickness measurement / heating device 10 according to an embodiment. Figure 4B It is used to illustrate Figure 4A The thickness measurement / heating device 10 shown in FIG. Figure 4A to Figure 62B shows the heating unit 26 supported by the lower frame 12B, but the heating unit 26 supported by the upper frame may have the same structure as these.

[0056] exist Figure 4A to Figure 6 In the illustrated exemplary embodiment, the first position adjusting unit 30 includes: a support box 42 for supporting the heater 28 (heating unit 26); a ball screw 31 including a screw shaft 32 and a nut 44; and a motor 34 configured to drive the screw shaft 32 to rotate.

[0057] The screw shaft 32 extends in the plate width direction and is rotatably supported by the lower frame 12B (support portion 12) via a bearing 36. The motor 34 and the bearing 36 may be stored in a housing 38 fixed to the lower frame 12B (support portion 12).

[0058] The support box 42 is configured to be movable along the plate width direction together with the heater 28. The support box 42 has a through hole 41 through which the screw shaft 32 passes. Figure 4A ), guide rails (not shown) and the like slide on the surface of the lower frame 12B. The nut 44 of the ball screw 31 is fixed to the support box 42.

[0059] According to the first position adjustment unit 30 configured in this way, when the screw shaft 32 is driven to rotate by the motor 34, the nut 44, the support box 42, and the heater 28 (heating unit 26) move integrally relative to the lower frame 12B in the plate width direction (or in the axial direction of the screw shaft 32). At this time, the movement amount (length) of the nut 44, the support box 42, and the heater 28 in the plate width direction corresponds to the rotation amount of the screw shaft 32. Therefore, by adjusting the rotation amount of the screw shaft 32, the position of the heater 28 (heating unit 26) in the plate width direction can be adjusted.

[0060] In the above-mentioned embodiment, the heater 28 (heating unit 26) can move in the plate width direction relative to the support unit 12, so when the plate width of the steel plate S is changed during the operation of the rolling equipment 1, for example, the heater 28 (heating unit 26) can be moved in the plate width direction in accordance with the change in the position of the plate end Sa of the steel plate S. Therefore, both ends of the steel plate S can be heated more appropriately.

[0061] In some embodiments, the heating unit 26 is configured to move along the plate width direction at a position further outward in the plate width direction than the thickness measuring unit 20. In this specification, the direction from the plate end Sa toward the center of the steel plate S in the plate width direction is defined as the inner direction in the plate width direction, and the direction from the center toward the plate end Sa of the steel plate S in the plate width direction is defined as the outer direction in the plate width direction.

[0062] exist Figure 2and Figure 3 In the exemplary embodiment shown, the first position adjustment unit 30 including the ball screw 31 is disposed at a position further outward in the plate width direction than the thickness measuring unit 20. Therefore, the heater (heating unit 26) can be moved in the plate width direction at a position further outward in the plate width direction than the thickness measuring unit 20. Figure 2 and Figure 3 As shown, the first position adjustment unit 30 including the ball screw 31 may also be provided at a position further outward in the plate width direction than the protection members 14 and 16 for protecting the thickness measuring unit 20. That is, the heater (heating unit 26) may also be configured to move along the plate width direction at a position further outward in the plate width direction than the protection members 14 and 16.

[0063] In the above-mentioned embodiment, the heating unit 26 can move in the plate width direction at a position outside the thickness measuring unit 20 or the protective members 14, 16 in the plate width direction, so even if the heating unit 26 moves in the plate width direction, the heating unit 26 and the thickness measuring unit 20 or the protective members 14, 16 will not interfere with each other. Therefore, damage to the heating unit 26, the thickness measuring unit 20, the protective members 14, 16 and other equipment can be suppressed.

[0064] like Figure 4A to Figure 6 As shown in FIG. 1 , the thickness measurement / heating device 10 may include a gap forming member 48 for forming a gap 49 between the steel plate S and the heating unit 26 in the thickness direction of the steel plate S. Figure 4A to Figure 6 In the illustrated exemplary embodiment, the gap forming member 48 is provided to protrude by a predetermined length G in the thickness direction of the steel sheet S from the facing surface 28 a of the heater 28 (heating unit 26 ) facing the steel sheet S.

[0065] According to the above-mentioned structure, the gap 49 is formed between the steel plate S and the heater 28 (heating unit 26) by the gap forming member 48, so even when the steel plate S moves up and down during the operation of the rolling equipment 1, or when the thickness of the steel plate S is changed, it is easy to maintain the distance between the steel plate S and the heater 28 (heating unit 26) in an appropriate range. Therefore, it is possible to efficiently heat the steel plate S regardless of the thickness of the steel plate S. It should be noted that the protrusion amount (the above-mentioned length G) of the gap forming member 48 protruding from the opposing surface 28a is set to a value suitable for heating the end of the steel plate S according to the type of the heater 28 (heating unit), etc.

[0066] In some embodiments, the heating unit 26 is configured to be movable in the vertical direction (or the thickness direction of the steel plate S) relative to the support unit 12. Figure 4A to Figure 6 As shown, the thickness measurement / heating device 10 includes a second position adjustment section 50 (position adjustment section) configured to adjust the position of the heating section 26 in the up-down direction.

[0067] exist Figure 4A to Figure 6 In the illustrated exemplary embodiment, the second position adjustment portion 50 for adjusting the position of the heater (heating portion 26) in the up and down directions includes: a ball screw 53 including a screw shaft 54 ​​extending in the horizontal direction and a nut (not shown) threadedly engaged with the screw shaft; a motor 56 configured to drive the screw shaft 54 ​​to rotate; and a movable portion 51 configured to move along the axial direction of the screw shaft 54. In the illustrated embodiment, the screw shaft 54, the motor 56, and the movable portion 51 are supported by the support box 42 via a fixed plate 43 fixed to the support box 42. In addition, the screw shaft 54 ​​is supported so as to be rotatable by a bearing (not shown). The nut of the ball screw 53 is fixed to the movable portion 51. The movable portion 51 is configured to be able to move by, for example, a roller 70 (see Figure 5 , Figure 6 ), guide rails (not shown) and the like slide on the surface of the fixed plate 43. When the screw shaft 54 ​​is driven to rotate by the motor 56, the nut (not shown) and the movable part 51 move relative to the support box 42 along the axial direction of the screw shaft 54 ​​(i.e., along the horizontal direction).

[0068] The heater 28 (heating unit 26) is configured to be movable in the vertical direction relative to the support box 42. That is, the heater 28 is movable in the vertical direction relative to the lower frame (support unit 12). Although not particularly shown, a guide portion for guiding the movement of the heater in the vertical direction may be provided on the support box 42.

[0069] The heater 28 has an inclined surface 28 b inclined with respect to a horizontal plane on the side opposite to the facing surface 28 a facing the steel sheet S in the up-down direction.

[0070] The movable portion 51 contacts the inclined surface 28b at two or more points at different positions in the vertical direction. Figure 4A and Figure 4B In the illustrated exemplary embodiment, the movable portion 51 includes a movable member 52 having an inclined surface 52a corresponding to the inclined surface 28b of the heater 28. Figure 5 In the exemplary embodiment shown, the movable part 51 includes: balls 58A, 58B, which can contact the inclined surface 28b of the heater 28 at different points in the vertical direction; and support cylinders 60A, 60B, which are used to support the balls 58A, 58B on the support box 42. Figure 6In the exemplary embodiment shown, the movable part 51 includes: balls 72A, 72B, which can contact the inclined surface 28b of the heater 28 at different points in the up and down directions; guide cylinders 74A, 74B and ball support seats 76A, 76B, which are used to guide the movement of the balls 72A, 72B along the up and down directions; and springs 78A, 78B, which can extend and retract in the up and down directions and support the balls 72A, 72B.

[0071] As the movable portion 51 moves along the screw shaft 54 ​​(i.e., in the horizontal direction), the contact point of the inclined surface 28b with respect to the movable portion 51 changes, thereby the heater 28 moves in the vertical direction. At this time, the vertical movement amount of the heater 28 corresponds to the axial movement of the movable portion 51 along the screw shaft 54, and the movement amount of the movable portion 51 corresponds to the rotation amount of the screw shaft 54. Therefore, by adjusting the rotation amount of the screw shaft 54, the position of the heater 28 (heating portion 26) in the vertical direction can be adjusted.

[0072] Alternatively, in some embodiments, the second position adjustment unit 50 may include a hydraulic cylinder or a pneumatic cylinder that is supported by the support unit 12 and is configured to be telescopic in the vertical direction. The hydraulic cylinder or the pneumatic cylinder may also be provided on a fixing plate 43 provided in the support box 42, and supported by the support unit 12 via the fixing plate 43 and the support box 42.

[0073] According to the above configuration, the position of the heater 28 (heating unit 26) in the vertical direction can be adjusted by the second position adjusting unit 50. Therefore, when the thickness of the steel plate S is changed, for example, the position of the heater 28 (heating unit 26) can be changed according to the thickness of the steel plate S. Therefore, it is easy to maintain the distance between the steel plate S and the heater 28 (heating unit 26) in an appropriate range. Therefore, the steel plate S can be efficiently heated regardless of its thickness.

[0074] In addition, Figure 4A to Figure 6 In the illustrated exemplary embodiment, the gap forming member 48 is supported by the heater 28, and the gap forming member 48 and the heater 28 (heating unit 26) are movable integrally. Therefore, the second position adjusting unit 50 can adjust the position of the gap forming member 48 in the vertical direction.

[0075] For example, Figure 4A The thickness measuring / heating device 10 is shown when a relatively thin steel plate S with a plate thickness t1 is rolled. Here, the plate thickness of the steel plate S is changed to a thicker plate thickness t2 (t1<t2) (see Figure 4B When the plate thickness changes from t1 to t2, the second position adjusting unit 50 is appropriately operated to move the positions of the heater 28 and the gap forming member 48 in the vertical direction downward by the difference between t2 and t1 (t2-t1). Figure 4BThe thickness measurement / heating device 10 is shown in which the positions of the heater 28 and the gap forming member 48 are moved downward in this manner. Therefore, according to the above-described embodiment, when the thickness of the steel plate S is changed, the distance between the steel plate S and the heater 28 (heating unit 26) can be easily maintained within an appropriate range. Therefore, the steel plate S can be efficiently heated regardless of its thickness.

[0076] In some embodiments, the thickness measurement / heating device 10 includes an impact absorbing portion 80 for reducing the force received by the gap forming member 48 from the steel plate S. For example, Figure 6 In the illustrated exemplary embodiment, the springs 78A and 78B function as the shock absorbing portion 80. Alternatively, when a hydraulic cylinder or a pneumatic cylinder is used as the second position adjusting portion 50, the oil or air sealing portion of the hydraulic cylinder or the pneumatic cylinder functions as the shock absorbing portion 80.

[0077] According to the above-mentioned embodiment, the force applied to the gap forming member 48 from the steel plate S is reduced by the impact absorbing portion 80, so even when a force is applied to a member disposed between the steel plate S and the support portion 12 (e.g., a component of the first position adjusting portion 30 or the second position adjusting portion 50 described above) due to vibration of the steel plate S, it is difficult to apply an excessive force to these members. Therefore, damage to the equipment can be suppressed.

[0078] Hereinafter, rolling equipment according to several embodiments will be briefly described.

[0079] (1) A rolling facility according to at least one embodiment of the present invention includes:

[0080] A support portion extending along a plate width direction of the rolled steel plate;

[0081] a thickness measuring portion configured to be supported by the supporting portion and to measure the thickness of the steel plate; and

[0082] The heating section is supported by the support section at positions on both sides sandwiching the thickness measuring section in the plate width direction, and is configured to heat both end portions of the steel plate.

[0083] According to the structure of (1) above, the thickness measuring part and the heating part are arranged in the plate width direction and supported by a single support part extending in the plate width direction, so that a compact device having both the thickness measuring function and the plate end heating function can be obtained. Therefore, the two functions of the thickness measurement of the steel plate and the plate end heating can be realized in a limited space such as near a rolling mill.

[0084] (2) In some embodiments, based on the structure of (1) above,

[0085] The heating unit is configured to heat the steel plate by induction heating.

[0086] According to the configuration of (2) above, the steel plate can be heated quickly and efficiently by induction heating. Therefore, even a small heating device can appropriately heat both ends of the steel plate being conveyed at a high speed.

[0087] (3) In some embodiments, based on the structure of (1) or (2),

[0088] The support portion comprises:

[0089] An upper frame, which is arranged above the steel plate and extends along the width direction of the plate;

[0090] a lower frame disposed to be opposite to the upper frame with the steel plate interposed therebetween and extending in the plate width direction; and

[0091] a side frame extending in the up-down direction and connecting one end of the upper frame and one end of the lower frame,

[0092] The thickness measuring unit and the heating unit are each supported by at least one of the upper frame and the lower frame.

[0093] According to the structure of (3) above, the thickness measuring part and the heating part can be properly supported by a compact support part including an upper frame and a lower frame extending in the plate width direction and a side frame connecting the upper frame and the lower frame. Therefore, a compact device having both a thickness measuring function and a plate end heating function can be obtained.

[0094] (4) In some embodiments, based on the structure of (3) above,

[0095] The thickness measuring unit comprises:

[0096] a radiation receiving unit supported by one of the upper frame and the lower frame; and

[0097] The radiation generating unit is configured to sandwich the steel plate in the thickness direction of the steel plate and be disposed on the side opposite to the radiation receiving unit, and is supported by the other of the upper frame and the lower frame to generate radiation toward the radiation receiving unit.

[0098] The environment near a rolling mill including rolling rolls is often harsh, with rolling oil and smoke flying around in large quantities, rolling rolls vibrating, and darkness. In this regard, according to the configuration of (4), since a thickness measuring unit including a radiation generating unit and a radiation receiving unit and using radiation is used, the thickness of a steel plate can be appropriately measured near a rolling mill in a harsh environment.

[0099] (5) In some embodiments, based on the structure of (3) or (4),

[0100] The heating portion includes a heater supported by the upper frame.

[0101] According to the configuration of (5) above, since the heating unit is supported by the upper frame, the heating unit can be provided so as not to interfere with members (for example, pipes) disposed below the steel plate.

[0102] (6) In some embodiments, based on any one of the structures (3) to (5) above,

[0103] The heating unit includes a heater that is provided on the opposite side of the side frame across the thickness measuring unit in the plate width direction and is supported by the lower frame.

[0104] Assuming that a heating unit supported by an upper frame is provided in an area on the opposite side of the side frame with the thickness measuring unit sandwiched in the plate width direction, the distance from the side frame to the heating unit becomes longer, and the front end load of the upper frame becomes larger. Therefore, for example, it may be necessary to increase the strength of the support unit, such as by making the support unit larger. In this regard, according to the structure of (6) above, the heating unit provided on the opposite side of the side frame with the thickness measuring unit sandwiched in the plate width direction is supported by the lower frame, so that the front end load of the upper frame does not increase. Therefore, the need to increase the strength of the support unit is reduced, and a more compact device can be obtained.

[0105] (7) In some embodiments, based on any one of the structures (1) to (6) above,

[0106] The heating portion is configured to be movable in the plate width direction relative to the support portion.

[0107] According to the structure of (7) above, the heating unit can move relative to the support unit in the plate width direction, so when the plate width of the steel plate is changed, for example, the position of the heating unit can be changed in accordance with the change in the position of the end of the steel plate. Therefore, the two ends of the steel plate can be heated more appropriately.

[0108] (8) In some embodiments, based on the structure of (7),

[0109] The heating portion is configured to move along the plate width direction at a position further outward in the plate width direction than the thickness measuring portion.

[0110] According to the structure of (8) above, the heating unit can move along the plate width direction at a position outside the thickness measuring unit in the plate width direction, so even if the heating unit moves, the heating unit and the thickness measuring unit will not interfere with each other. Therefore, damage to the heating unit, the thickness measuring unit and other equipment can be suppressed.

[0111] (9) In some embodiments, based on any one of the structures (1) to (8) above,

[0112] The rolling equipment includes a gap forming member for forming a gap between the steel plate and the heating unit in a thickness direction of the steel plate.

[0113] According to the configuration of (9), the gap forming member forms a gap between the steel plate and the heating unit, so that the distance between the steel plate and the heating unit can be easily maintained within an appropriate range. Therefore, the steel plate can be efficiently heated regardless of its thickness.

[0114] (10) In some embodiments, based on the structure of (9) above,

[0115] The gap forming member is provided so as to protrude in a direction toward the steel plate more than a surface of the heating portion that faces the steel plate in the thickness direction of the steel plate.

[0116] According to the structure of (10), the gap forming member is provided to protrude toward the steel plate compared to the opposing surface of the heating unit, so that the gap can be appropriately formed between the steel plate and the heating unit. Therefore, the steel plate can be efficiently heated regardless of its thickness.

[0117] (11) In some embodiments, based on the structure of (9) or (10),

[0118] The rolling equipment includes a shock absorbing portion for reducing a force received by the gap forming member from the steel plate.

[0119] According to the structure of (11) above, the force applied to the gap forming member from the steel plate is reduced by the impact absorbing portion, so that even when a force is applied to the member disposed between the steel plate and the supporting portion due to, for example, vibration of the steel plate, it is difficult to apply an excessive force to these members. Therefore, damage to the equipment can be suppressed.

[0120] (12) In some embodiments, based on any one of the structures (1) to (11) above,

[0121] The rolling equipment includes a position adjustment unit configured to adjust a position of the heating unit in a vertical direction.

[0122] According to the structure of (12), the position of the heating unit in the vertical direction can be adjusted. Therefore, when the thickness of the steel plate is changed, for example, by changing the position of the heating unit according to the thickness of the steel plate, it is easy to maintain the distance between the steel plate and the heating unit within an appropriate range. Therefore, the steel plate can be heated efficiently regardless of its thickness.

[0123] (13) In some embodiments, based on any one of the structures (1) to (12) above,

[0124] The rolling equipment includes rolling rolls that are located downstream of the thickness measuring section and the heating section in a conveyance direction of the steel plate and are used to roll the steel plate.

[0125] According to the structure of (13) above, the thickness measuring part and the heating part are arranged in the plate width direction and supported by a single support part extending in the plate width direction, so that a compact device having both the thickness measuring function and the plate end heating function can be obtained. Therefore, the two functions of the steel plate thickness measurement and the plate end heating can be realized in a limited space such as near a rolling mill.

[0126] As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, and also includes the form which added the deformation|transformation of the said embodiment, and the form which combined these forms suitably.

[0127] In this specification, expressions such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric" or "coaxial" that indicate relative or absolute configurations not only indicate such configurations in a strict sense, but also indicate a state of relative displacement with a tolerance, or an angle or distance to the extent that the same function can be obtained.

[0128] For example, expressions such as “same”, “equal”, and “homogeneous” indicating a state in which things are equal not only indicate a state of being strictly equal but also indicate a state in which there is a tolerance or a difference to the extent that the same function can be obtained.

[0129] In the present specification, expressions such as a quadrilateral and a cylindrical shape indicate not only shapes such as a quadrilateral and a cylindrical shape in a strict geometric sense, but also shapes including concave-convex portions, chamfered portions, etc. within a range that can obtain the same effect.

[0130] In addition, in this specification, the expression “having”, “including” or “having” a component is not an exclusive expression that excludes the existence of other components.

[0131] Description of reference numerals:

[0132] 1 Rolling equipment

[0133] 2 Rolling mill

[0134] 3. 3A~3D rolling stands

[0135] 4 Rolling rollers

[0136] 6 Conveyor rollers

[0137] 7 Steering roller

[0138] 8 Coiler

[0139] 10 Heating device

[0140] 12 Supporting part

[0141] 12A Upper frame

[0142] 12Aa One end

[0143] 12B Lower frame

[0144] 12Ba One end

[0145] 12C side frame

[0146] 14 Protective parts

[0147] 16 Protective parts

[0148] 18 Gas outlet pipe

[0149] 20 Thickness measurement unit

[0150] 22 Radiation generating unit

[0151] 24 Radiation receiving part

[0152] 26 Heating unit

[0153] 28 Heater

[0154] 28A First Heater

[0155] 28B Second heater

[0156] 28a Opposite surface

[0157] 28b Inclined surface

[0158] 30 first position adjustment unit

[0159] 31 Ball Screw

[0160] 32 Screw shaft

[0161] 34 Motor

[0162] 36 Bearings

[0163] 38 Shell

[0164] 41 Through hole

[0165] 42 Support box

[0166] 43 Fixed plate

[0167] 44 Nut

[0168] 47 Roller

[0169] 48 Gap forming member

[0170] 49 Gap

[0171] 50 second position adjustment unit

[0172] 51 Moving parts

[0173] 52 Movable components

[0174] 52a Inclined surface

[0175] 53 Ball Screw

[0176] 54 Screw shaft

[0177] 56 Motor

[0178] 58A Ball

[0179] 58B Ball

[0180] 60A support cylinder

[0181] 60B Support Cylinder

[0182] 70 Roller

[0183] 72A Ball

[0184] 72B Ball

[0185] 74A Guide tube

[0186] 74B Guide tube

[0187] 76A Ball Bearing Seat

[0188] 76B Ball Bearing Seat

[0189] 78A Spring

[0190] 78B Spring

[0191] 80 Shock absorbing part

[0192] 101 Radiation

[0193] C Central Location

[0194] S Steel Plate

[0195] Sa Bantuan.

Claims

1. A rolling equipment, wherein: The rolling equipment comprises: A support portion extending along a plate width direction of the rolled steel plate; a thickness measuring portion configured to be supported by the supporting portion and to measure the thickness of the steel plate; and The heating section is supported by the support section at positions on both sides sandwiching the thickness measuring section in the plate width direction, and is configured to heat both end portions of the steel plate.

2. The rolling equipment according to claim 1, wherein: The heating unit is configured to heat the steel plate by induction heating.

3. The rolling equipment according to claim 1 or 2, wherein: The support portion comprises: An upper frame, which is arranged above the steel plate and extends along the width direction of the plate; a lower frame disposed to be opposite to the upper frame with the steel plate interposed therebetween and extending in the plate width direction; and a side frame extending in the up-down direction and connecting one end of the upper frame and one end of the lower frame, The thickness measuring unit and the heating unit are each supported by at least one of the upper frame and the lower frame.

4. The rolling equipment according to claim 3, wherein: The thickness measuring unit comprises: a radiation receiving unit supported by one of the upper frame and the lower frame; and The radiation generating unit is configured to sandwich the steel plate in the thickness direction of the steel plate and be disposed on the side opposite to the radiation receiving unit, and is supported by the other of the upper frame and the lower frame to generate radiation toward the radiation receiving unit.

5. The rolling equipment according to claim 3, wherein: The heating portion includes a heater supported by the upper frame.

6. The rolling equipment according to claim 3, wherein: The heating unit includes a heater that is provided on the opposite side of the side frame across the thickness measuring unit in the plate width direction and is supported by the lower frame.

7. The rolling equipment according to claim 1 or 2, wherein: The heating portion is configured to be movable in the plate width direction relative to the support portion.

8. The rolling equipment according to claim 7, wherein: The heating portion is configured to move along the plate width direction at a position further outward in the plate width direction than the thickness measuring portion.

9. The rolling equipment according to claim 1 or 2, wherein: The rolling equipment includes a gap forming member for forming a gap between the steel plate and the heating unit in a thickness direction of the steel plate.

10. The rolling equipment according to claim 9, wherein: The gap forming member is provided so as to protrude in a direction toward the steel plate more than a surface of the heating portion that faces the steel plate in the thickness direction of the steel plate.

11. The rolling equipment according to claim 9, wherein: The rolling equipment includes a shock absorbing portion for reducing a force received by the gap forming member from the steel plate.

12. The rolling equipment according to claim 1 or 2, wherein: The rolling equipment includes a position adjustment unit configured to adjust a position of the heating unit in a vertical direction.

13. The rolling equipment according to claim 1 or 2, wherein: The rolling equipment includes rolling rolls that are located downstream of the thickness measuring section and the heating section in a conveyance direction of the steel plate and are used to roll the steel plate.

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