Plate surface rolling oil removal wiper and rolling equipment

Abstract

To provide a plate surface rolling oil removing wiper and rolling equipment capable of increasing the replacement interval of a wiper roller and increasing work efficiency accordingly. [Solution] The six-stage wiper 110 for removing rolling oil from plate surface comprises a pair of upper and lower wiper rollers 2a, 2b that removes rolling oil 55 adhering to the surface of a strip 1 rolled by a multi-stage rolling mill 35, two pairs of upper and lower split support rollers 3a, 3b, 3c, 3d that rotatably support the pair of upper and lower wiper rollers 2a, 2b, and shift cylinders 12a, 12b, 12c, 12d that axially shift one or more of the wiper rollers 2a, 2b and the split support rollers 3a, 3b, 3c, 3d, thereby causing the wiper rollers 2a, 2b and the split support rollers 3a, 3b, 3c, 3d to slide relative to each other in the axial direction.

Description

[Technical Field]

[0001] The present invention relates to rolling equipment for rolling metal strips, and particularly to rolling equipment suitable for producing hard materials with high productivity and high product quality, and a strip surface rolling oil removal wiper used therein. [Background technology]

[0002] Patent Document 1 describes, as an example of a technology for suppressing the occurrence of surface defects on a metal strip and extending the life of a wiping roll, a wiping roll including a metal core material and an elastic layer formed by lining the outer peripheral surface of the core material with an elastic material that is softer than the core material, and a cooling means for cooling the wiping roll, in which the wiping roll is pressed against the surface of a rolled metal strip while being cooled by the cooling means to remove rolling oil from the surface of the metal strip. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-245710 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventionally, multi-high rolling mills such as 20-high rolling mills have been used as rolling mills using small diameter work rolls for rolling hard materials.

[0005] In such rolling mills, rolling oil is sprayed at the entry and exit sides of the rolling mill for lubrication and cooling during rolling. Because this rolling oil adheres to the surface of the metal strip at the exit side of the rolling mill, a rolling oil removal wiper is installed at the exit side of the rolling mill.

[0006] The six-stage wiper in Patent Document 1 is equipped with two pairs of split support roller assembly shafts (upper and lower) that support a pair of upper and lower wiper rollers, and the two pairs of split support roller assembly shafts (upper and lower) with high bending rigidity suppress axial bending of the upper and lower wiper rollers. This structure makes it possible to increase and uniform the linear contact pressure between the metal strip and the upper and lower wiper rollers in the width direction, resulting in high rolling oil removal capacity.

[0007] However, with this configuration, if the wiping time is long, roll marks from the divided support rollers gradually appear on the wiper roller surface, which are then transferred to the strip, degrading the surface quality of the plate. For this reason, after a certain period of wiping, the wiper roller must be replaced in order to re-grind the wiper roller surface, which causes a corresponding decrease in work efficiency.

[0008] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a plate surface rolling oil removal wiper and rolling equipment that can increase the interval between wiper roller replacements and correspondingly increase work efficiency, thereby solving the above-mentioned problems. [Means for solving the problem]

[0009] The present invention includes a plurality of means for solving the above-mentioned problems. One example of such means is a pair of upper and lower wiper rollers that removes rolling oil adhering to the surface of a metal strip that has been rolled by a rolling mill, and a support for supporting the pair of upper and lower wiper rollers so that they can rotate. , consisting of split support rollers, bearings, shafts and saddles Two pairs of upper and lower split support roller assembly shafts; a shift block to which the two pairs of upper and lower split support roller assembly shafts are attached; a spring or cylinder installed between the saddle and the shift block; a lift block to which the wiper roller is connected and which is connected to a wiper frame so that the wiper roller can be raised and lowered and pressed against the metal band plate; The split support roller assembly shaft up and down in opposite directions and a shift mechanism for shifting the wiper roller and the divided support roller assembly shaft in the axial direction, so that the wiper roller and the divided support roller assembly shaft slide relative to each other in the axial direction. [Effects of the Invention]

[0010] According to the present invention, the interval between replacement of the wiper rollers can be lengthened, thereby improving work efficiency. Objects, configurations, and effects other than those described above will become apparent from the following description of the embodiments. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a front view of a rolling facility equipped with a six-stage wiper for removing rolling oil from a plate surface according to a first embodiment of the present invention. [Figure 2] FIG. 1 is a front view of a six-stage wiper for removing rolling oil from a plate surface according to a first embodiment of the present invention. [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2, and is a side view of a six-stage wiper for removing rolling oil from a strip surface according to a first embodiment of the present invention. [Figure 4] 3 is a cross-sectional view taken along the arrow BB in FIG. 2, and is a plan view of a six-stage wiper for removing rolling oil from a strip surface according to a first embodiment of the present invention. [Figure 5] FIG. 1 is a front view of a conventional rolling facility equipped with a six-stage wiper for removing rolling oil from the plate surface. [Figure 6] 6 is a side view of a conventional six-stage wiper for removing rolling oil from the surface of a plate, taken along the arrow CC in FIG. 5 . [Figure 7] FIG. 10 is a side view of a six-stage wiper for removing rolling oil from a plate surface according to a second embodiment of the present invention. [Figure 8] 8 is a cross-sectional view taken along the arrow DD in FIG. 7, and is a plan view of a six-stage wiper for removing rolling oil from the surface of a plate according to a second embodiment of the present invention. [Figure 9] FIG. 10 is a diagram showing an outline of a six-stage wiper for removing rolling oil from a plate surface according to a third embodiment of the present invention. [Figure 10] FIG. 10 is a side view of a six-stage wiper for removing rolling oil from a plate surface according to a fourth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the plate surface rolling oil removal wiper and rolling equipment of the present invention will be described with reference to the drawings. In the drawings used in this specification, identical or similar reference numerals are used to designate identical or corresponding components, and repeated explanations of these components may be omitted.

[0013] <First Example> A first embodiment of the plate surface rolling oil removal wiper and rolling equipment of the present invention will be described with reference to FIGS. 1 to 6. FIG.

[0014] First, the overall configuration of a rolling mill equipped with a six-stage wiper for removing rolling oil from a plate surface will be described with reference to Fig. 1. Fig. 1 is a front view of a rolling mill equipped with a six-stage wiper for removing rolling oil from a plate surface according to a first embodiment of the present invention.

[0015] The rolling equipment 100 of this embodiment shown in FIG. 1 includes a multi-stage rolling mill 35 that rolls the strip 1, a rough-cut wiper 36 that is installed on the rolling direction exit side of the multi-stage rolling mill 35 and roughly squeezes out rolling oil 55 adhering to the surface of the strip 1, and a six-stage strip surface rolling oil removal wiper 110 that removes the rolling oil 55 adhering to the surface of the strip 1.

[0016] A strip 1, which is a material to be rolled, is rolled by a multi-stage rolling mill 35 having, for example, 20 stages, and rolling oil 55 adheres to the surface of the strip 1.

[0017] The strip 1 is first pressed from above and below by a pair of upper and lower rough-cutting wiper rolls 48a, 48b in the rough-cutting wiper 36, and the rolling oil 55 adhering to the surface of the strip 1 is roughly squeezed out and removed by the accompanying rotation of the rough-cutting wiper rolls 48a, 48b.

[0018] The pair of upper and lower rough-cut wiper rolls 48a, 48b are supported on their operating side and drive side by bearings 49a, 49b, 49c, 49d, and the bearings 49a, 49b, 49c, 49d are raised and lowered by hydraulic cylinders (omitted for convenience of illustration) to press them against the strip 1.

[0019] Next, the details of the structure of the six-stage wiper 110 for removing rolling oil from the surface of a plate according to this embodiment will be described with reference to Fig. 2 to Fig. 4. Fig. 2 is a front view of the six-stage wiper for removing rolling oil from the surface of a plate according to this embodiment, Fig. 3 is a cross-sectional view taken along the line AA in Fig. 2, and Fig. 4 is a cross-sectional view taken along the line BB in Fig. 2.

[0020] The six-stage wiper 110 for removing rolling oil from the plate surface shown in FIGS. 2 to 4 is installed on the exit side of the multi-stage rolling mill 35 in the rolling direction.

[0021] The strip 1 is pressed from above and below by a pair of upper and lower wiper rollers 2a, 2b, and rolling oil 55 adhering to the surface of the strip 1 is squeezed out and removed by the accompanying rotation of the wiper rollers 2a, 2b.

[0022] The wiper roller 2a on the vertical upper side of the band plate 1 is supported in contact with the two divided support rollers 3a and 3b so as to be rotatable. stomach do.

[0023] Similarly, the wiper roller 2b on the vertically lower side of the band plate 1 is supported in contact with the two divided support rollers 3c and 3d so as to be rotatable. stomach do.

[0024] The shift block 7a is attached to the lifting block 10a via sliding liners 8a and 8b and sliding liners 9a and 9b in the path direction so as to be slidable in the roller axial direction. The shift block 7a is connected to the lifting block 10a by shift cylinders 12a and 12c on its operating and driving sides, respectively, so as to be shiftable in the roller axial direction. In other words, the shift cylinders 12a and 12c are shift mechanisms that shift the divided support rollers 3a and 3b in the axial direction, causing the wiper roller 2a and the divided support rollers 3a and 3b to slide relative to each other in the axial direction.

[0025] Similarly, shift block 7b is attached to lift block 10b via sliding liners 8c and 8d and sliding liners 9c and 9d in the path direction so as to be slidable in the roller axial direction. Shift block 7b is connected to lift block 10b by shift cylinders 12b and 12d on its operating and driving sides, respectively, so as to be shiftable in the roller axial direction. That is, shift cylinders 12b and 12d are shift mechanisms that shift divided support rollers 3c and 3d in the axial direction, causing wiper roller 2b and divided support rollers 3c and 3d to slide relative to each other in the axial direction.

[0026] In this manner, in this embodiment, only the two pairs of upper and lower divided support rollers 3a, 3b, 3c, and 3d are shifted in the axial direction.

[0027] The lifting block 10a is connected to the wiper frame 16 so that it can be raised and lowered and pressed by upper cylinders 11a and 11c. As a result, the wiper roller 2a is connected to the lifting block 10a via thrust bearings 13a and 13c, shafts 14a and 14c, and brackets 15a and 15c, which receive thrust forces at the shaft ends on the axial operation side and drive side.

[0028] Similarly, the lifting block 10b is connected to the wiper frame 16 so as to be able to be raised, lowered, and pressed by the lower cylinders 11b and 11d. As a result, the wiper roller 2b is connected to the lifting block 10b via thrust bearings 13b and 13d, shafts 14b and 14d, and brackets 15b and 15d, which receive thrust forces at the shaft ends on the axial operation side and drive side.

[0029] As described above, the two pairs of upper and lower split support roller assembly shafts, each consisting of the two pairs of upper and lower split support rollers 3a, 3b, 3c, 3d, bearings 4a, 4b, 4c, 4d, shafts 5a, 5b, 5c, 5d, and saddles 6a, 6b, 6c, 6d, are shifted in the roller axial direction together with the shift blocks 7a and 7b to which they are attached by the shift cylinders 12a, 12c, 12b, 12d on the operating and driving sides.

[0030] This axial sliding between the divided support rollers 3a, 3b, 3c, and 3d and the wiper rollers 2a and 2b while rotating prevents the contact points between the divided support rollers 3a, 3b, 3c, and 3d and the wiper rollers 2a and 2b from being fixed in the same position. Therefore, the surfaces of the wiper rollers 2a and 2b are leveled compared to the conventional configuration, and it is possible to delay the formation of roll marks of the divided support rollers 3a, 3b, 3c, and 3d on the surfaces of the wiper rollers 2a and 2b.

[0031] The shifting of the two pairs of upper and lower split support roller assembly shafts in the axial direction by the shift cylinders 12a, 12b, 12c, and 12d is preferably carried out during rolling. It is also desirable to periodically shift the shafts back and forth in the axial direction and / or shift the upper and lower shafts in the axial direction in opposite directions, as this type of shifting is more effective.

[0032] Springs or cylinders (not shown) may be installed between the saddles 6a, 6b, 6c, 6d and the shift blocks 7a, 7b to make the contact line pressure between the strip 1 and the wiper rollers 2a, 2b uniform in the width direction. This improves the ability to remove the rolling oil 55. This configuration can also be adopted in the second to fourth embodiments.

[0033] Furthermore, the two pairs of upper and lower split support rollers 3a, 3b, 3c, and 3d may be arranged in a staggered pattern so that the positions of the roller end faces of the upper split support roller 3a and the lower split support roller 3b are offset in the axial direction. Similarly, the positions of the roller end faces of the lower split support roller 3c and the lower split support roller 3d may be arranged in a staggered pattern so that the positions of the roller end faces of the lower split support roller 3c and the lower split support roller 3d are offset in the axial direction. This makes it more difficult for roll marks to appear on the wiper rollers 2a and 2b. This configuration can also be used in the second to fourth embodiments.

[0034] Furthermore, in the structure of the first embodiment, of the two pairs of upper and lower divided support rollers 3a, 3b, 3c, and 3d, the upper divided support roller 3a and the upper divided support roller 3b shift simultaneously in the roll axis direction, but the shift block 7a may be divided into two, left and right, and another set of shift cylinders 12a and 12c may be added, so that the upper left divided support roller 3a and the upper right divided support roller 3b can shift separately.

[0035] Similarly, the lower divided support rollers 3c and 3d shift simultaneously in the roll axial direction, but the shift block 7b can be divided into two, left and right, and another set of shift cylinders 12b and 12d can be added, allowing the lower divided support rollers 3c and 3d to shift separately. This makes it even more difficult for roll marks to appear.

[0036] For comparison, the structure of a six-stage wiper 210 for removing rolling oil from the plate surface according to a reference technology will be described with reference to Figures 5 and 6. Figure 5 is a front view of rolling equipment equipped with a conventional six-stage wiper for removing rolling oil from the plate surface, and Figure 6 is a view taken along the CC arrow in Figure 5.

[0037] The six-stage wiper 210 for removing rolling oil from the plate surface in the conventional rolling equipment 200 is similar to the conventional rolling equipment 200 in that it is installed on the exit side in the rolling direction of the multi-stage rolling mill 35. The strip 1, which is the material to be rolled, is rolled by the multi-stage rolling mill 35, and rolling oil 55 adheres to the surface of the strip 1.

[0038] The strip 1 is first pressed from above and below by rough-cutting wiper rolls 48a and 48b, also called rough-cutting wipers 36, and the rolling oil 55 adhering to the surface of the strip 1 is roughly squeezed out and removed by the accompanying rotation of the rough-cutting wiper rolls 48a and 48b.

[0039] In the conventional six-stage wiper 210 for removing rolling oil from the surface of a plate, which is arranged behind the wiper 210, a pair of upper and lower wiper rollers 37a, 37b are supported in contact with two pairs of upper and lower split support rollers 38a, 38b, 38c, 38d, respectively, and are further fixed to lifting blocks 42a, 42b via bearings 39a, 39b, 39c, 39d, shafts 40a, 40b, 40c, 40d, and saddles 41a, 41b, 41c, 41d. The lifting blocks 42a, 42b are connected to a wiper frame 47 so as to be able to be raised and lowered and pressed by upper and lower cylinders 46a, 46c, 46b, 46d, respectively.

[0040] This conventional six-stage wiper 210 for removing rolling oil from the plate surface is equipped with two pairs of split support roller assembly shafts, one above the other, which support a pair of upper and lower wiper rollers 37a, 37b. The two pairs of split support roller assembly shafts, which have high bending rigidity, suppress the axial bending of the pair of upper and lower wiper rollers 37a, 37b. This makes it possible to make the contact line pressure between the plate and the pair of upper and lower wiper rollers 37a, 37b high and uniform in the width direction, resulting in high rolling oil removal capacity.

[0041] However, if the wiping time is long, roll marks from the divided support rollers 38a, 38b, 38c, and 38d gradually appear on the surfaces of the wiper rollers 37a and 37b, which are then transferred to the strip 1, reducing the quality of the plate surface. Therefore, after wiping for a certain period of time, the surfaces of the wiper rollers 37a and 37b must be re-polished, and the wiper rollers 37a and 37b must be replaced, which poses a problem of reduced work efficiency.

[0042] Next, the effects of this embodiment will be described.

[0043] The six-stage wiper 110 for removing rolling oil from the surface of the strip 1 according to the first embodiment of the present invention described above comprises a pair of upper and lower wiper rollers 2a, 2b for removing rolling oil 55 adhering to the surface of the strip 1 rolled by the multi-stage rolling mill 35, two pairs of upper and lower split support rollers 3a, 3b, 3c, 3d for rotatably supporting the pair of upper and lower wiper rollers 2a, 2b, and shift cylinders 12a, 12b, 12c, 12d for axially shifting one or more of the wiper rollers 2a, 2b and the split support rollers 3a, 3b, 3c, 3d, thereby causing the wiper rollers 2a, 2b and the split support rollers 3a, 3b, 3c, 3d to slide relative to each other in the axial direction.

[0044] This relative shift leveled the surfaces of the wiper rollers 2a and 2b, delaying the formation of roll marks on the surfaces of the support rollers 3a, 3b, 3c, and 3d. As a result, the replacement interval for the wiper rollers 2a and 2b could be extended, thereby improving work efficiency. The structure of the present invention is particularly effective for wiper rollers made of soft materials such as pure copper, which are easily coated.

[0045] In addition, since only the two pairs of upper and lower split support roller assembly shafts are shifted in the axial direction, the wiper rollers 2a and 2b that come into contact with the strip 1 do not themselves shift in the axial direction, which has the advantage that there is no concern about meandering of the strip 1 due to shifting of the wiper rollers 2a and 2b, or a decrease in speed due to misalignment of the winding coil.

[0046] Furthermore, the shift cylinders 12a, 12b, 12c, and 12d periodically shift the two pairs of upper and lower split support roller assembly shafts back and forth in the axial direction, and / or shift them axially in opposite directions, thereby more effectively leveling the surfaces of the wiper rollers 2a and 2b.

[0047] <Second Example> A strip surface rolling oil removal wiper and rolling equipment according to a second embodiment of the present invention will be described with reference to Figures 7 and 8. Figure 7 is a side view of a strip surface rolling oil removal six-stage wiper according to this embodiment, and Figure 8 is a cross-sectional view taken along the arrow DD in Figure 7.

[0048] A six-stage wiper 110A for removing rolling oil from the plate surface according to a second embodiment shown in FIGS. 7 and 8 is also installed on the delivery side in the rolling direction of the multi-stage rolling mill 35.

[0049] In the six-stage wiper 110A for removing rolling oil from the plate surface, a pair of upper and lower wiper rollers 17a, 17b are pressed against the strip 1 from above and below, and the accompanying rotation of the wiper rollers 17a, 17b squeezes out and removes the rolling oil 55 adhering to the surface of the strip 1.

[0050] This pair of upper and lower wiper rollers 17a, 17b are supported in contact with two pairs of upper and lower split support rollers 18a, 18b, 18c, 18d, respectively, and are further fixed to lifting blocks 22a, 22b via bearings 19a, 19b, 19c, 19d, shafts 20a, 20b, 20c, 20d, and saddles 21a, 21b, 21c, 21d.

[0051] The lifting blocks 22a and 22b are connected to a wiper frame 28 so as to be able to move up and down and press down by cylinders 27a, 27c, 27b, and 27d on the operating and driving sides.

[0052] In addition, the wiper roller 17a is connected to the lifting block 22a by shift cylinders 26a and 26c so that it can be shifted in the roller axial direction via thrust bearings 23a and 23c, shafts 24a and 24c, and brackets 25a and 25c, which receive thrust forces at the shaft ends on the axial operation side and drive side, respectively.

[0053] Similarly, the wiper roller 17b is connected to the lifting block 22b by shift cylinders 26b and 26d so that it can be shifted in the roller axial direction via thrust bearings 23b and 23d, shafts 24b and 24d, and brackets 25b and 25d, which receive thrust forces at the shaft ends on the axial operation side and drive side, respectively.

[0054] As a result, the pair of upper and lower wiper rollers 17a, 17b are shifted in the roller axis direction by the shift cylinders 26a, 26c, 26b, 26d on the operating side and driving side.

[0055] This axial sliding between wiper rollers 17a, 17b and divided support rollers 18a, 18b, 18c, and 18d while rotating smoothes the surfaces of wiper rollers 17a, 17b, making it possible to delay the formation of roll marks of divided support rollers 18a, 18b, 18c, and 18d on the surfaces of wiper rollers 17a, 17b. As a result, the replacement interval between wiper rollers 17a, 17b can be extended, thereby improving work efficiency.

[0056] The wiper rollers 17a and 17b are preferably shifted by the shift cylinders 26a, 26c, 26b and 26d during rolling. It is also desirable to shift the wiper rollers 17a and 17b cyclically.

[0057] Furthermore, it is desirable to shift the wiper rollers 17a, 17b on the upper and lower sides of the strip 1 in the axially opposite directions.

[0058] In the structure of this embodiment, the wiper rollers 17a, 17b are directly shifted in the axial direction, so depending on the wiping conditions, the thrust force acting on the band plate 1 in the axial direction may cause the band plate 1 to meander. Therefore, to shift the wiper rollers 17a, 17b to the opposite sides in the axial direction, it is desirable to shift the pair of upper and lower wiper rollers 17a, 17b to the opposite sides in the axial direction at an extremely low speed, for example, between 0.00001 mm / sec and 1 mm / sec. This makes it more difficult for meandering to occur.

[0059] The other configurations and operations are substantially the same as those of the strip surface rolling oil removal wiper and rolling equipment of the first embodiment described above, and details thereof will be omitted.

[0060] The strip surface rolling oil removal wiper and rolling equipment according to the second embodiment of the present invention also provides substantially the same effects as those of the strip surface rolling oil removal wiper and rolling equipment according to the first embodiment described above.

[0061] In addition, by shifting only the pair of upper and lower wiper rollers 17a, 17b in the axial direction, it is possible to achieve a relative shift of the wiper rollers 17a, 17b with respect to the divided support rollers 18a, 18b, 18c, and 18d, which makes it possible to level the surfaces of the wiper rollers 17a, 17b and delay the formation of roll marks of the divided support rollers 18a, 18b, 18c, and 18d on the surfaces of the wiper rollers 17a, 17b.

[0062] Furthermore, the shift cylinders 26a, 26c, 26b, and 26d shift the wiper rollers 17a and 17b to the opposite axial direction at the extremely low speed, thereby minimizing the risk of the band plate 1 meandering due to the shifting of the wiper rollers 17a and 17b.

[0063] <Third Example> A strip surface rolling oil removal wiper and rolling equipment according to a third embodiment of the present invention will be described with reference to Fig. 9. Fig. 9 shows a six-stage strip surface rolling oil removal wiper according to this embodiment.

[0064] The six-stage wiper 110B for removing rolling oil from a strip surface of this embodiment shown in Fig. 9 includes two pairs of upper and lower wiper rollers 29a, 29b and two pairs of upper and lower wiper rollers 30a, 30b arranged in the conveying direction of the strip 1. Other components are omitted for convenience of illustration. The six-stage wiper for removing rolling oil from a strip surface, each having the wiper rollers 29a, 29b and the wiper rollers 30a, 30b, has substantially the same configuration as the six-stage wiper 110A for removing rolling oil from a strip surface described in the second embodiment.

[0065] In the six-stage wiper 110B for removing rolling oil from the plate surface, the strip 1 is pressed from above and below by a pair of upper and lower wiper rollers 29a, 29b, and the rolling oil 55 adhering to the surface of the strip 1 is squeezed out and removed by the accompanying rotation of the wiper rollers 29a, 29b.

[0066] After that, the strip 1 is pressed from above and below by another pair of upper and lower wiper rollers 30a, 30b of the same configuration, and the rolling oil 55 adhering to the surface of the strip 1 is further squeezed out and removed by the accompanying rotation of the wiper rollers 30a, 30b.

[0067] In the two six-stage wipers, it is desirable to shift the upper and lower pairs of wiper rollers 29a, 29b and 30a, 30b to opposite sides in the axial direction of the upper and lower rollers.

[0068] Furthermore, the upper wiper rollers 29a, 30a and the lower wiper rollers 29b, 30b are shifted in opposite axial directions. That is, in terms of the shift direction, the upper wiper roller 29a and the lower wiper roller 30b are separated into a pair and a pair, the lower wiper roller 29b and the upper wiper roller 30a. In this way, it is desirable that the shift cylinder shifts the upper wiper rollers 29a, 30a and the lower wiper rollers 29b, 30b of the upper and lower wiper roller pairs 29a, 29b, 30a, 30b in opposite axial directions.

[0069] Other configurations and operations are substantially the same as those of the strip surface rolling oil removal wiper and rolling equipment of the first or second embodiment described above, and details thereof will be omitted.

[0070] The strip surface rolling oil removal wiper and rolling equipment of the third embodiment of the present invention also provides substantially the same effects as the strip surface rolling oil removal wiper and rolling equipment of the first or second embodiment described above.

[0071] In addition, two sets of wiper rollers 29a, 29b, 30a, 30b are provided in the conveying direction of the strip 1, and the shift cylinder shifts the two sets of upper wiper rollers 29a, 30a and lower wiper rollers 29b, 30b of the upper and lower pairs of wiper rollers 29a, 29b, 30a, 30b in opposite axial directions, thereby canceling out the thrust force in the roller axial direction acting on the strip 1, making it difficult for the strip 1 to meander, and furthermore, wiping by two rollers increases the effect of removing rolling oil from the strip surface.

[0072] <Fourth Example> A strip surface rolling oil removal wiper and rolling equipment according to a fourth embodiment of the present invention will be described with reference to Fig. 10. Fig. 10 is a side view of a strip surface rolling oil removal six-stage wiper according to this embodiment.

[0073] 10, in the six-stage wiper 110C for removing rolling oil from the strip surface of this embodiment, a pair of upper and lower wiper rollers 31a, 31b are pressed against the strip 1 from above and below, and the accompanying rotation of the wiper rollers 31a, 31b squeezes and removes rolling oil 55 adhering to the surface of the strip 1. In this case, it is more preferable to disengage clutches 50a, 50b of drive motors 34a, 34b (described later) to reduce inertia.

[0074] In the six-stage wiper 110C for removing rolling oil from a plate surface, in addition to the configuration of the six-stage wiper 110A for removing rolling oil from a plate surface of the second embodiment, a pair of upper and lower wiper rollers 31a, 31b are connected to the drive side so as to be drivable by drive motors 34a, 34b via splined couplings 32a, 32b, spindles 33a, 33b, and clutches 50a, 50b.

[0075] Then, the pair of upper and lower wiper rollers 31a, 31b are raised and opened together with the lifting blocks 22a, 22b by the cylinders 27a, 27c, 27b, 27d on the operating and driving sides thereof. In this case, the upper wiper roller 31a is held by a rotatable roller (not shown) to prevent it from falling.

[0076] When this pair of upper and lower wiper rollers 31a, 31b are in the open state, the contact pressure between the wiper rollers 31a, 31b and the divided support rollers 18a, 18b, 18c, 18d is small, so the shift cylinder can shift the wiper rollers 31a, 31b to the opposite side in the vertical axial direction.

[0077] Furthermore, when the band plate 1 is not present, the pair of upper and lower wiper rollers 31a, 31b are brought into contact with each other, and the drive motors 34a, 34b are driven to rotate (freewheel) the wiper rollers 31a, 31b, while the pair of upper and lower wiper rollers 31a, 31b are shifted to the opposite side in the roller axial direction by the shift cylinders 26a, 26c, 26b, 26d on the operating and driving sides.

[0078] This axial sliding between the wiper rollers 31a, 31b and the divided support rollers 18a, 18b, 18c, and 18d while rotating smoothes the surfaces of the wiper rollers 31a, 31b, making it possible to delay the formation of roll marks of the divided support rollers 18a, 18b, 18c, and 18d on the surfaces of the wiper rollers 31a, 31b.

[0079] The other configurations and operations are substantially the same as those of the strip surface rolling oil removal wiper and rolling equipment of any of the first to third embodiments described above, and details thereof will be omitted.

[0080] The plate surface rolling oil removal wiper and rolling equipment of the fourth embodiment of the present invention also provides substantially the same effects as those of any of the plate surface rolling oil removal wiper and rolling equipment of the first to third embodiments described above.

[0081] In addition, the shift cylinder can also be shifted to the opposite side in the vertical axial direction with the pair of upper and lower wiper rollers 31a, 31b in an open state, which can level the surfaces of the wiper rollers 31a, 31b and delay the formation of roll marks.

[0082] Furthermore, when the pair of upper and lower wiper rollers 31a, 31b are in contact with each other and are rotating freely by the drive unit without the band plate 1, the shift cylinder shifts the wiper rollers 31a, 31b in the opposite axial direction. As a result, when the wiper rollers 31a, 31b are shifted without the band plate 1, they do not come into direct contact with the band plate 1, and there is no risk of the band plate 1 meandering.

[0083] <Other> It should be noted that the present invention is not limited to the above-described embodiment, and includes various modifications. The above-described embodiment has been described in detail to clearly explain the present invention, and the present invention is not necessarily limited to an embodiment having all of the described configurations.

[0084] It is also possible to replace part of the configuration of one embodiment with the configuration of another embodiment, or to add the configuration of another embodiment to the configuration of one embodiment, or to add, delete, or replace part of the configuration of each embodiment with the configuration of another embodiment. [Explanation of symbols]

[0085] 1; Band plate (metal band plate) 2a, 2b, 17a, 17b, 29a, 29b, 30a, 30b, 31a, 31b; wiper rollers 3a, 3b, 3c, 3d, 18a, 18b, 18c, 18d; Split support roller (split support roller assembly shaft) 4a, 4b, 4c, 4d, 19a, 19b, 19c, 19d: Bearings (split support roller assembly shaft) 5a, 5b, 5c, 5d, 20a, 20b, 20c, 20d; shaft (split support roller assembly shaft) 6a, 6b, 6c, 6d, 21a, 21b, 21c, 21d; Saddle (split support roller assembly shaft) 7a, 7b; Shift block 8a, 8b, 8c, 8d, 9a, 9b, 9c, 9d; sliding liners 10a, 10b, 22a, 22; Lifting block 11a, 11c; Upper cylinder 11b, 11d; Lower cylinder 12a, 12b, 12c, 12d, 26a, 26b, 26c, 26d; Shift cylinder (shift mechanism) 13a, 13b, 13c, 13d, 23a, 23b, 23c, 23d; Thrust bearings 14a,14b,14c,14d,24a,24b,24c,24d;axis 15a, 15b, 15c, 15d, 25a, 25b, 25c, 25d; brackets 16,28;Wiper frame 27a, 27b, 27c, 27d; Cylinder 32a, 32b; Coupling 33a, 33b; spindle 34a, 34b; drive motor 35; Multi-stage rolling mill 36; Coarse cutting wiper 37a, 37b; Wiper roller 38a, 38b, 38c, 38d; Split support rollers 39a, 39b, 39c, 39d; bearings 40a, 40b, 40c, 40d; shaft 41a, 41b, 41c, 41d; Saddle 42a, 42b; Lifting block 43a, 43b, 43c, 43d; Thrust bearings 44a, 44b, 44c, 44d; axis 45a, 45b, 45c, 45d; brackets 46a, 46b, 46c, 46d; Cylinder 47;Wiper frame 48a, 48b; Rough cutting wiper roll 49a, 49b, 49c, 49d; bearings 50a, 50b; Clutch 55; Rolling oil 100;Rolling equipment 110, 110A, 110B, 110C: 6-stage wiper for removing rolling oil from plate surface 200; Rolling equipment 210;6-stage wiper for removing rolling oil from plate surface

Claims

1. a pair of upper and lower wiper rollers for removing rolling oil adhering to the surface of the metal strip rolled by the rolling mill; two pairs of upper and lower split support roller assembly shafts, each consisting of a split support roller, a bearing, a shaft, and a saddle, that rotatably support the pair of upper and lower wiper rollers; a shift block to which the two pairs of upper and lower split support roller assembly shafts are attached; a spring or cylinder installed between the saddle and the shift block; a lift block connected to the wiper frame so as to lift and lower the wiper roller and press the wiper roller against the metal band plate; a shift mechanism for shifting the divided support roller assembly shafts in the axial direction in opposite directions up and down, The wiper roller and the divided support roller assembly shaft are slid relative to each other in the axial direction. Wiper for removing rolling oil from plate surface.

2. 2. The plate surface rolling oil removal wiper according to claim 1, the shift mechanism is a shift cylinder that shifts the shift block in the axial direction of the divided support roller assembly shaft, A sliding liner is further provided between the lift block and the periphery of the shift block. Wiper for removing rolling oil from plate surface.

3. 2. The plate surface rolling oil removal wiper according to claim 1, The shift mechanism periodically shifts the divided support roller assembly shaft back and forth in the axial direction. Wiper for removing rolling oil from plate surface.

4. A rolling facility comprising the plate surface rolling oil removal wiper according to any one of claims 1 to 3 and the rolling mill.

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