Surface oil removal device for cold rolled steel production

Abstract

The utility model belongs to the technical field of cold rolled steel production, and particularly relates to a surface oil removal device for cold rolled steel production, which comprises an oil removal device, a first limiting roller and a second limiting roller, the first limiting roller and the second limiting roller are rotatably connected to the inner wall of the oil removal device, and a first brush is rotatably connected to the inner wall of the oil removal device. The first brush is located between the first limiting roller and the second limiting roller. The first motor is fixedly connected to one side of the oil removal device, and an output shaft of the first motor penetrates through the oil removal device and extends into the oil removal device to be fixed to one end of the first brush; the two first sliding grooves are symmetrically formed in the inner wall of the oil removing device, and a sliding plate is connected between the two first sliding grooves in a sliding mode. When the oil removing device is used, although oil on a cold-rolled steel strip can be scraped, the oil on the cold-rolled steel strip can not be cleaned away through pure scraping, and the oil removing efficiency is improved. And the use is not facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cold-rolled steel production technical field especially relates to a surface oil removal device for cold-rolled steel production. BACKGROUND

[0002] The surface oil removal device for cold-rolled steel production is used to remove oil stains, grease or other contaminants adhered to the cold-rolled steel during production or processing. These devices play a crucial role in the production line of cold-rolled steel, ensuring the cleanliness of the steel plate surface, thereby improving product quality and subsequent processing efficiency.

[0003] For example, the Chinese patent with publication number CN220461752U discloses a cold-rolled steel strip oil removal device, which includes an oil removal cavity with an open design at the top. Guide rollers are installed on both sides of the top of the oil removal cavity through brackets. A cleaning unit is installed at the middle of the bottom inside the oil removal cavity. A scraping unit is added to the top of one side wall inside the oil removal cavity, and it is cooperatively arranged with the cleaning unit. The cleaning unit and the scraping unit can process the cold-rolled steel strip. The utility model has a cleaning unit that can continuously scrape and clean both sides of the cold-rolled steel strip synchronously, ensuring the cleaning of the cold-rolled steel strip. The scraping unit can scrape and clean the cold-rolled steel strip again, and can remove the oil removal agent on the surface of the cold-rolled steel strip, ensuring the cleanliness of the cold-rolled steel strip. The adjusting platform can freely rotate inside the oil removal cavity, and can freely adjust the direction of guidance to adapt to the swing of the cold-rolled steel strip during conveying, ensuring the stable performance of the scraping work.

[0004] The above-mentioned patent has the following problems:

[0005] The oil removal device described above has some drawbacks when in use. For example, although it can scrape the oil on the cold-rolled steel strip, simple scraping may not be able to completely clean the oil on the cold-rolled steel strip, which is not conducive to use. Therefore, we propose a surface oil removal device for cold-rolled steel production. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a surface oil removal device for cold-rolled steel production to solve the problems raised in the background.

[0007] Therefore, the utility model provides a surface oil removal device for cold-rolled steel production, which includes:

[0008] The oil removal device, the first limiting roller and the second limiting roller are rotationally connected to the inner wall of the oil removal device. The first brush is rotationally connected to the inner wall of the oil removal device, and is located between the first limiting roller and the second limiting roller.

[0009] A first motor is fixedly connected to one side of the oil removal device, and an output shaft of the first motor penetrates the oil removal device and extends into the oil removal device to be fixed to one end of the first brush;

[0010] Two first sliding grooves are symmetrically formed in the inner wall of the oil removal device, and a sliding plate is slidably connected between the two first sliding grooves, and a second brush is rotatably connected to the inner wall of the sliding plate, and two fixed blocks are fixedly connected to the top surface of the sliding plate;

[0011] A driving assembly is located in the sliding plate and used to drive the second brush to rotate;

[0012] A fixed plate is fixedly connected to the oil removal device, a second sliding groove is formed in the bottom surface of the fixed plate, two sliding blocks are slidably connected in the second sliding groove, a first transmission rod and a second transmission rod are rotatably connected between the two sliding blocks and the two fixed blocks, respectively, the first transmission rod and the second transmission rod are rotatably connected, and a bidirectional threaded rod is threadedly connected between the two sliding blocks and rotatably connected to the second sliding groove;

[0013] A rotating assembly is located in the fixed plate and used to drive the bidirectional threaded rod to rotate.

[0014] Based on the above structure, the first brush and the first motor are arranged to ensure that when the user starts the first motor, the output shaft of the first motor drives the first brush to rotate in the inner cavity of the oil removal device, so that the first brush can brush the bottom surface of the cold-rolled steel strip. The sliding plate and the second brush are arranged to ensure that the second brush can rotate in the inner cavity of the sliding plate. The driving assembly is arranged to ensure that the user can drive the second brush to rotate in the inner cavity of the sliding plate through the driving assembly, so that the second brush can brush the top surface of the cold-rolled steel strip. The first limiting roller and the second limiting roller are arranged to ensure that the first limiting roller and the second limiting roller can rotate on the inner wall of the oil removal device and limit the position passed by the cold-rolled steel strip. The second sliding groove and the sliding block are arranged to ensure that the two sliding blocks can slide in the second sliding groove. The rotating assembly and the bidirectional threaded rod are arranged to ensure that the user can drive the bidirectional threaded rod to rotate through the rotating assembly, so that the two sliding blocks are close to or away from each other under the action of the two sections of threads with opposite rotation directions on the bidirectional threaded rod. The fixed block, the first transmission rod, and the second transmission rod are arranged to ensure that when the two sliding blocks are close to each other, the two sliding blocks will push the two fixed blocks downward through the first transmission rod and the second transmission rod, respectively, so that the two fixed blocks drive the sliding plate to move downward, and the sliding plate drives the second brush to move downward, ensuring that the user can adjust the distance between the second brush and the first brush according to the thickness of the cold-rolled steel strip.

[0015] In the above technical solution, further, the driving assembly comprises:

[0016] The movable groove is arranged in the sliding plate, the first sprocket and the second sprocket are rotatably connected in the movable groove, the first sprocket is fixed with one end of the second brush, and the first sprocket and the second sprocket are meshed with the chain.

[0017] The motor groove is arranged in the sliding plate and is in communication with the movable groove, the second motor is fixedly connected in the motor groove, and the output shaft of the second motor extends into the movable groove and is fixed with the second sprocket.

[0018] In the technical solution, the user can adjust the distance between the second brush and the first brush according to the thickness of the cold-rolled steel strip.

[0019] In the above technical solution, further, the output shaft of the second motor is rotatably connected with the movable groove.

[0020] In the technical solution, the output shaft of the second motor can normally rotate in the movable groove.

[0021] In the above technical solution, further, the rotating assembly comprises:

[0022] The gear groove is arranged in the fixed plate and is in communication with the second sliding groove, the first bevel gear and the second bevel gear are rotatably connected in the gear groove, the first bevel gear and the second bevel gear are meshed with each other, one end of the first bevel gear penetrates through the inner wall of the gear groove and extends into the second sliding groove and is fixed with one end of the bidirectional threaded rod, the second bevel gear is fixedly connected with the rotating rod, and one end of the rotating rod penetrates through the inner wall of the gear groove and extends to the outside and is rotatably connected with the fixed plate.

[0023] In the technical solution, when the first sprocket rotates, the first sprocket drives the second brush to rotate in the inner cavity of the sliding plate.

[0024] In the above technical solution, further, one end of the first bevel gear is rotatably connected with the second sliding groove.

[0025] In the technical solution, one end of the first bevel gear can normally rotate in the second sliding groove.

[0026] In the above technical solution, further, the rotating rod is rotatably connected with the gear groove.

[0027] In the technical solution, the rotating rod can normally rotate in the gear groove.

[0028] In the above technical solution, further, the two threads on the bidirectional threaded rod are opposite in rotation direction.

[0029] In the technical solution, when the bidirectional threaded rod rotates, the two sliding blocks are affected by the two sections of threads with opposite rotation directions on the bidirectional threaded rod, and move closer to or farther away from each other.

[0030] The utility model discloses the beneficial effect is:

[0031] 1. The surface oil removal device for cold rolled steel production, through the first brush and first motor that set up, ensure when the user starts first motor, the output shaft of first motor will drive first brush to rotate in the inner chamber of oil removal device, make first brush can wash the bottom surface of cold rolled steel strip, through the setting of sliding plate and second brush, ensure that the second brush can rotate in the inner chamber of sliding plate, through the setting of drive assembly, ensure that the user can drive second brush to rotate in the inner chamber of sliding plate through drive assembly, make second brush can wash the top surface of cold rolled steel strip, through the setting of first limiting roller and second limiting roller, ensure that first limiting roller and second limiting roller can rotate on the inner wall of oil removal device, and ensure that first limiting roller and second limiting roller can limit the position that cold rolled steel strip passes, solve the problem that although the oil on the cold rolled steel strip can be scraped when using the oil removal device, but the oil on the cold rolled steel strip can not be cleaned up simply, which is not conducive to use.

[0032] 2. The surface oil removal device for cold rolled steel production, through the setting of second chute and sliding block, ensure that two sliding blocks can slide in the second chute, through the setting of rotating assembly and bidirectional threaded rod, ensure that the user can drive bidirectional threaded rod to rotate through rotating assembly, make two sliding blocks be affected by the two sections of threads with opposite rotation directions on bidirectional threaded rod, and move closer to or farther away from each other, through the setting of fixed block, first transmission rod and second transmission rod, ensure that when two sliding blocks move closer to each other, two sliding blocks will respectively push two fixed blocks to move down through first transmission rod and second transmission rod, make two fixed blocks drive sliding plate to move down, make sliding plate can drive second brush to move down, ensure that the user can adjust the interval between second brush and first brush according to the thickness of cold rolled steel strip. ACCURATE DRAWINGS

[0033] Figure 1 It is the overall structure schematic view of the utility model;

[0034] Figure 2 It is the internal structure schematic view of the oil removal device of the utility model;

[0035] Figure 3 It is the internal structure schematic view of the oil removal device of the utility model;

[0036] Figure 4 It is the area structure schematic view of the fixed plate of the utility model;

[0037] Figure 5For Figure 4 Enlarged structural schematic view at A in the middle;

[0038] Figure 6 Is the internal structure schematic diagram of the fixed plate.

[0039] The figure mark indicates that:

[0040] 1, oil removal device;2, first limit roll;3, second limit roll;4, first brush;5, first motor;6, first sliding groove;7, sliding plate;8, fixed block;9, fixed plate;10, second sliding groove;11, sliding block;12, first transmission rod;13, second transmission rod;14, second brush;15, two-way threaded rod;16, gear groove;17, first bevel gear;18, second bevel gear;19, rotating rod;20, movable groove;21, first sprocket;22, second sprocket;23, chain;24, motor groove;25, second motor. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0042] In the description of the present application, it should be noted that the terms used herein are only for the purpose of describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the size of each part shown in the drawings is not drawn according to the actual proportional relationship. The technology, method and equipment known to those skilled in the relevant art can not be discussed in detail, but should be regarded as part of the authorized description. In all examples shown and discussed here, any specific value should be interpreted as only exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0043] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the use of the terms so construed can interchange depending on the context in which it is used, and that the embodiments of the present application can be implemented not only in the order disclosed but also in other orders that are different from the disclosed ones. The objects differentiated by "first", "second", and the like are generally one kind, and the number of the objects is not limited, for example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and " / " generally means an "or" relationship between the objects before and after it.

[0044] It should be noted that in the description of the present application, the orientation or position relationship indicated by the terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal", and "top, bottom" is generally based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description. Without the opposite indication, these orientation terms do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the scope of protection of the present application; the orientation terms "inner, outer" refer to the inner and outer of the contour of each component itself.

[0045] It should be noted that in the present application, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitation, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved, for example, the described method can be performed in an order different from the described one, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0046] Embodiment 1:

[0047] Please refer to Figure 1 - Figure 6 As shown in the drawings, the embodiment provides a surface oil removing device for cold rolled steel production, which comprises:

[0048] The oil removal device 1, the first limiting roller 2 and the second limiting roller 3 are rotationally connected to the inner wall of the oil removal device 1, the first limiting roller 2 and the second limiting roller 3, a first brush 4 is rotationally connected to the inner wall of the oil removal device 1, and the first brush 4 is located between the first limiting roller 2 and the second limiting roller 3;

[0049] The first motor 5 is fixedly connected to one side of the oil removal device 1, and the output shaft of the first motor 5 penetrates the oil removal device 1 and extends to one end of the first brush 4 in the oil removal device 1;

[0050] Two first sliding grooves 6 are symmetrically formed in the inner wall of the oil removal device 1, a sliding plate 7 is slidably connected between the two first sliding grooves 6, a second brush 14 is rotationally connected to the inner wall of the sliding plate 7, and two fixed blocks 8 are fixedly connected to the top surface of the sliding plate 7;

[0051] The driving assembly is located in the sliding plate 7 and is used for driving the second brush 14 to rotate;

[0052] The fixed plate 9 is fixedly connected to the oil removal device 1, the bottom surface of the fixed plate 9 is provided with a second sliding groove 10, two sliding blocks 11 are slidably connected in the second sliding groove 10, a first transmission rod 12 and a second transmission rod 13 are rotationally connected between the two sliding blocks 11 and the two fixed blocks 8 respectively, the first transmission rod 12 and the second transmission rod 13 are rotationally connected, a bidirectional threaded rod 15 is threadedly connected between the two sliding blocks 11, and the bidirectional threaded rod 15 is located in the second sliding groove 10 and is rotationally connected with the second sliding groove 10;

[0053] The rotating assembly is located in the fixed plate 9 and is used for driving the bidirectional threaded rod 15 to rotate.

[0054] Embodiment 2:

[0055] The embodiment provides a surface oil removal device for cold-rolled steel production, in addition to the technical scheme of the above-mentioned embodiment, further has the following technical features, the driving assembly comprises:

[0056] The movable groove 20 is formed in the sliding plate 7, the first sprocket 21 and the second sprocket 22 are rotationally connected in the movable groove 20, the first sprocket 21 is fixedly connected to one end of the second brush 14, and the chain 23 is engaged between the first sprocket 21 and the second sprocket 22;

[0057] The motor groove 24 is formed in the sliding plate 7 and communicates with the movable groove 20, the second motor 25 is fixedly connected in the motor groove 24, and the output shaft of the second motor 25 extends into the movable groove 20 and is fixedly connected to the second sprocket 22.

[0058] Wherein, in use, the user rotates the rotating rod 19 with his hand, so that the rotating rod 19 drives the second bevel gear 18 to rotate in the gear groove 16, the second bevel gear 18 drives the first bevel gear 17 to rotate in the gear groove 16, and the first bevel gear 17 drives the bidirectional threaded rod 15 to rotate in the second sliding groove 10. When the bidirectional threaded rod 15 rotates, the two sliding blocks 11 will be affected by the two sections of threads with opposite rotation directions on the bidirectional threaded rod 15, and move closer to or farther away from each other. When the two sliding blocks 11 move closer to each other, the two sliding blocks 11 will push the two fixed blocks 8 downward through the first transmission rod 12 and the second transmission rod 13, respectively, so that the two fixed blocks 8 drive the sliding plate 7 to move downward, and the sliding plate 7 drives the second brush 14 to move downward, ensuring that the user can adjust the distance between the second brush 14 and the first brush 4 according to the thickness of the cold-rolled steel strip.

[0059] Embodiment 3:

[0060] The embodiment provides a surface oil removal device for cold-rolled steel production. In addition to the technical solutions of the above-mentioned embodiments, the second motor 25 is further provided with the following technical features: the output shaft of the second motor 25 is rotatably connected with the movable groove 20.

[0061] The output shaft of the second motor 25 can rotate normally in the movable groove 20.

[0062] Embodiment 4:

[0063] The embodiment provides a surface oil removal device for cold-rolled steel production. In addition to the technical solutions of the above-mentioned embodiments, the second motor 25 is further provided with the following technical features: the rotating assembly comprises:

[0064] The gear groove 16 is formed in the fixed plate 9 and communicates with the second sliding groove 10. The first bevel gear 17 and the second bevel gear 18 are rotatably connected in the gear groove 16, and the first bevel gear 17 and the second bevel gear 18 are meshed with each other. One end of the first bevel gear 17 penetrates through the inner wall of the gear groove 16 and extends into the second sliding groove 10 and is fixed with one end of the bidirectional threaded rod 15. The second bevel gear 18 is fixedly connected with the rotating rod 19, and one end of the rotating rod 19 penetrates through the inner wall of the gear groove 16 and extends to the outside and is rotatably connected with the fixed plate 9.

[0065] In use, the user starts the second motor 25, so that the output shaft of the second motor 25 drives the second sprocket 22 to rotate in the movable groove 20, and the second sprocket 22 drives the first sprocket 21 to rotate in the movable groove 20 through the chain 23, so that when the first sprocket 21 rotates, the first sprocket 21 drives the second brush 14 to rotate in the inner cavity of the sliding plate 7.

[0066] Embodiment 5:

[0067] The embodiment provides a surface oil removing device for cold-rolled steel production, in addition to the technical scheme of the above embodiment, further has the following technical features, one end of the first bevel gear 17 is rotatably connected with the second sliding groove 10.

[0068] Among them, ensure that one end of the first bevel gear 17 can rotate normally in the second sliding groove 10.

[0069] Embodiment 6:

[0070] The embodiment provides a surface oil removing device for cold-rolled steel production, in addition to the technical scheme of the above embodiment, further has the following technical features, the rotating rod 19 is rotatably connected with the gear groove 16.

[0071] Among them, ensure that the rotating rod 19 can rotate normally in the gear groove 16.

[0072] Embodiment 7:

[0073] The embodiment provides a surface oil removing device for cold-rolled steel production, in addition to the technical scheme of the above embodiment, further has the following technical features, the two threads on the bidirectional threaded rod 15 are opposite in rotation direction.

[0074] Among them, ensure that when the bidirectional threaded rod 15 rotates, the two sliding blocks 11 will be affected by the two threads on the bidirectional threaded rod 15, and approach each other or move away from each other.

[0075] In use, the user passes the cold-rolled steel strip from above one of the guide rollers on the oil removal device 1, and passes the cold-rolled steel strip between the first scraping strip and the second scraping strip and between the first cleaning roller and the second cleaning roller in the oil removal device 1, and then passes the cold-rolled steel strip from above the first limiting roller 2, between the first brush 4 and the second brush 14, and below the second limiting roller 3, and then passes the cold-rolled steel strip from above the other guide roller on the oil removal device 1, and then the user rotates the rotating rod 19 by hand, so that the rotating rod 19 drives the second bevel gear 18 to rotate in the gear groove 16, so that the second bevel gear 18 drives the first bevel gear 17 to rotate in the gear groove 16, so that the first bevel gear 17 drives the bidirectional threaded rod 15 to rotate in the second sliding groove 10, when the bidirectional threaded rod 15 rotates, the two sliding blocks 11 will be affected by the two sections of threads with opposite rotation directions on the bidirectional threaded rod 15, and move closer to each other or farther away from each other, when the two sliding blocks 11 move closer to each other, the two sliding blocks 11 will push the two fixed blocks 8 downward through the first transmission rod 12 and the second transmission rod 13, so that the two fixed blocks 8 drive the sliding plate 7 to move downward, so that the sliding plate 7 drives the second brush 14 to move downward, so that the user can adjust the distance between the second brush 14 and the first brush 4 according to the thickness of the cold-rolled steel strip, then the user starts the first motor 5, so that the first motor 5 drives the first brush 4 to rotate on the inner wall of the oil removal device 1, at the same time, the user starts the second motor 25, so that the output shaft of the second motor 25 drives the second sprocket 22 to rotate in the movable groove 20, so that the second sprocket 22 drives the first sprocket 21 to rotate in the movable groove 20 through the chain 23, when the first sprocket 21 rotates, the first sprocket 21 drives the second brush 14 to rotate in the inner cavity of the sliding plate 7, so that the first brush 4 and the second brush 14 can clean the oil remaining on the top surface and the bottom surface of the cold-rolled steel strip when the cold-rolled steel strip passes through the oil removal device 1.

[0076] The embodiments of the present application are described above in conjunction with the drawings, the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, not restrictive, the person skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, all of which belong to the protection of the present application.

Claims

1. A surface degreasing device for cold-rolled steel production, characterized by, Include: The oil removal device (1), the first limiting roller (2) and the second limiting roller (3) are rotatably connected on the inner wall of the oil removal device (1), the first limiting roller (2) and the second limiting roller (3) are rotatably connected on the inner wall of the oil removal device (1), the first limiting roller (2) and the second limiting roller (3) are rotatably connected on the inner wall of the oil removal device (1), and the first limiting roller (2) and the second limiting roller (3) are rotatably connected on the inner wall of the oil removal device (1); The first motor (5) is fixedly connected on one side of the oil removal device (1), and the output shaft of the first motor (5) penetrates the oil removal device (1) and extends into the oil removal device (1) and is fixed with one end of the first brush (4); Two first sliding grooves (6) are symmetrically arranged on the inner wall of the oil removal device (1), and the sliding plate (7) is slidably connected between the two first sliding grooves (6); The inner wall of the sliding plate (7) is rotatably connected with the second brush (14), and the top surface of the sliding plate (7) is fixedly connected with two fixed blocks (8); Driving assembly, the driving assembly is located in the sliding plate (7), and is used for driving the second brush (14) to rotate; The fixed plate (9) is fixedly connected on the oil removal device (1), the bottom surface of the fixed plate (9) is provided with the second sliding groove (10), the second sliding groove (10) is slidably connected with two sliding blocks (11), the first transmission rod (12) and the second transmission rod (13) are rotatably connected between the two sliding blocks (11) and the two fixed blocks (8), respectively, and the first transmission rod (12) and the second transmission rod (13) are rotatably connected, the two sliding blocks (11) are threadedly connected with the bidirectional threaded rod (15), and the bidirectional threaded rod (15) is located in the second sliding groove (10) and is rotatably connected with the second sliding groove (10); Rotating assembly, the rotating assembly is located in the fixed plate (9), and is used for driving the bidirectional threaded rod (15) to rotate. The driving assembly comprises:

2. A surface degreasing device for cold-rolled steel production according to claim 1, characterized in that, The movable groove (20) is arranged in the sliding plate (7), the first sprocket (21) and the second sprocket (22) are rotatably connected in the movable groove (20), one end of the first sprocket (21) is fixed with the second brush (14), and the first sprocket (21) and the second sprocket (22) are engaged with the chain (23); The motor groove (24) is arranged in the sliding plate (7) and communicates with the movable groove (20), the second motor (25) is fixedly connected in the motor groove (24), and the output shaft of the second motor (25) extends into the movable groove (20) and is fixed with the second sprocket (22). The output shaft of the second motor (25) is rotatably connected with the movable groove (20).

3. A surface degreasing device for cold rolled steel production according to claim 2, characterized in that, The rotating assembly comprises:

4. The surface degreasing device for cold-rolled steel production according to claim 1, characterized in that, ​ Gear groove (16) is set up in fixed plate (9) and is linked with second sliding groove (10), first bevel gear (17) and second bevel gear (18) are rotatably connected in gear groove (16), and first bevel gear (17) and second bevel gear (18) are engaged with each other, one end of first bevel gear (17) extends to second sliding groove (10) and is fixed with one end of bidirectional screw rod (15) through the inner wall of gear groove (16), rotating rod (19) is fixedly connected on second bevel gear (18), and one end of rotating rod (19) extends to outside and is rotatably connected with fixed plate (9) through the inner wall of gear groove (16).

5. The surface degreasing device for cold-rolled steel production according to claim 4, characterized in that, One end of first bevel gear (17) is rotatably connected with second sliding groove (10).

6. The surface degreasing device for cold-rolled steel production according to claim 4, characterized in that, Rotating rod (19) is rotatably connected with gear groove (16).

7. The surface degreasing device for cold-rolled steel production according to claim 1, characterized in that, The rotation directions of the two threads on bidirectional screw rod (15) are opposite.

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