Finishing mill group capable of oppositely cleaning inner wall and outer wall of finish rolling pipe and cleaning method of finishing mill group

Abstract

The invention relates to the technical field of finish rolling pipes, and provides a finish rolling unit capable of oppositely cleaning the inner wall and the outer wall of a finish rolling pipe and a cleaning method of the finish rolling unit. By arranging the moving structure and starting the driving motor, the driving motor drives the gear to rotate, the gear drives the moving plate to move through the teeth, the teeth are distributed on the two sides of the gear in a staggered mode, the moving plate drives the moving bases on the two sides of the sliding rail to move reversely, the moving bases drive the sliding bases to move on the outer side of the sliding rail, and under the action of the sliding bases, the moving plate is driven to move. The moving seat on one side above the platform drives the first flow dividing seat to move to the outer side of one end of the pipe body, and the moving seat on the other side above the platform drives the second flow dividing seat to move the interior of one end of the pipe body, so that the inner wall and the outer wall of the pipe body are conveniently cleaned at the same time, and the opposite cleaning function of the device is achieved; therefore, the working efficiency of the finishing mill group capable of oppositely cleaning the inner wall and the outer wall of the finish rolling pipe and the cleaning method thereof in use is improved.

Description

Technical Field

[0001] The invention relates to the technical field of finishing rolled tubes, and in particular to a finishing rolling unit capable of oppositely cleaning inner and outer walls of a finishing rolled tube and a cleaning method thereof. Background Art

[0002] Finished rolled tube is a kind of high-precision steel tube, also known as cold-rolled precision steel tube. It is a production process of seamless steel tube. During the production process of finished rolled tube, some impurities will remain on its inner and outer walls. In order to improve the service life of finished rolled tube, it needs to be cleaned. Therefore, a finishing rolling unit and a cleaning method thereof that can clean the inner and outer walls of finished rolled tube in opposite directions are used.

[0003] To this end, the patent with authorization announcement number CN115786925A discloses a steel pipe cleaning device, which includes a hydraulic component, a mounting seat, and a clamping component. The upper end of the hydraulic component is fixed on the gantry bracket, and the crossbeam of the gantry bracket is located directly above the pickling tank. The mounting seat is connected to the telescopic rod of the hydraulic component, the clamping component is fixedly connected to the mounting seat, and the clamping component is composed of a mounting shaft, a lower clamping mechanism and an upper clamping mechanism, and the mounting shaft is installed on the mounting seat; the steel pipe is positioned and clamped by setting a steel pipe cleaning device composed of a hydraulic component, a mounting seat and a clamping component, and the clamping component is arranged to be composed of a mounting shaft, a lower clamping mechanism and an upper clamping mechanism, so that the steel pipe is alternately clamped by the lower clamping mechanism and the upper clamping mechanism, so as to ensure that all surfaces of the steel pipe can be well cleaned, thereby ensuring the surface cleaning effect of the steel pipe;

[0004] Although the steel pipe cleaning equipment mentioned above can ensure that all surfaces of the steel pipe can be well cleaned during use, thereby ensuring the surface cleaning effect of the steel pipe, it is inconvenient to move during use and it is inconvenient to clean the pipe body in opposite directions, which makes it inconvenient to improve work efficiency during use. Summary of the invention

[0005] The object of the present invention is to provide a finishing mill unit capable of oppositely cleaning the inner and outer walls of a finishing tube and a cleaning method thereof, so as to solve the defect that the existing finishing mill unit capable of oppositely cleaning the inner and outer walls of a finishing tube and a cleaning method thereof are inconvenient to move.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a finishing mill unit capable of oppositely cleaning the inner and outer walls of a finishing tube, comprising a water tank and supporting legs;

[0007] Support legs are evenly fixed on both sides of the water tank, and the top ends of the support legs extend to the outside of the water tank and are fixed with a platform, and a moving structure is arranged on the top of the platform, and the moving structure includes a gear, a slide rail, a driving motor, a slide seat, a moving seat, a moving plate and teeth, and the gear is arranged on the top of the platform, and a driving motor is installed at the bottom end of the platform below the gear, and slide rails are fixed on both sides of the top of the platform, and slide seats are arranged on the outer sides of the tops of the slide rails, and moving seats are fixed on the tops of the slide seats, and moving plates are fixed on one side of the bottom end of the moving seats, and teeth are evenly fixed on one side of the moving plate;

[0008] A cleaning structure is fixed on the top of the movable structure on one side above the platform, a flushing structure is fixed on the top of the movable structure on the other side above the platform, a supporting structure is arranged at the middle position of the top of the platform, and a pipe body is arranged above the supporting structure;

[0009] Water spraying components are installed on both sides of the bottom of the water tank, and a sewage pipe is fixed on one side of the bottom of the water tank.

[0010] Preferably, the output end of the driving motor extends to the top of the platform and is fixedly connected to the bottom end of the gear, the sliding seat and the moving seat constitute a sliding structure, the gear and the teeth are meshingly connected, and the teeth are staggered on both sides of the gear.

[0011] Preferably, the cleaning structure includes a fixed plate, a first delivery pipe, a first diverter seat and a water spray hole. The fixed plate is fixed to the top of the movable seat on one side above the platform. The first delivery pipe passes through the top of the fixed plate. The first diverter seat is fixed at one end of the first delivery pipe. Water spray holes are evenly arranged on the inner side of the first diverter seat.

[0012] Preferably, the first diverter seat and the tube body form a sliding structure, and the water spray holes are distributed at equal intervals inside the first diverter seat.

[0013] Preferably, the supporting structure includes a bracket, an electric push rod, a supporting seat and a sliding rod. The bracket is fixed at the middle position of the top of the platform, an electric push rod passes through one side of the top of the bracket, a supporting seat is fixed to the top of the electric push rod, and a sliding rod passes through the inside of the bracket on one side of the electric push rod.

[0014] Preferably, the top end of the sliding rod is fixedly connected to the bottom end of the supporting seat, and the sliding rod and the bracket constitute a sliding structure.

[0015] Preferably, the flushing structure includes a support plate, a second delivery pipe, a second diverter seat, a first nozzle and a second nozzle, the support plate is fixed to the top of the movable seat on the other side above the platform, the second delivery pipe passes through the top of the support plate, one end of the second delivery pipe extends to the inside of the tube body and is fixed with a second diverter seat, one end of the second diverter seat is fixed with a second nozzle, and the first nozzle is evenly fixed on the outside of the second diverter seat.

[0016] Preferably, the water spray assembly includes an installation box, a water pump, a filter, a cover plate and a connecting pipe. The installation box is fixed on both sides of the bottom of the water tank, a cover plate is fixed at one end of the installation box, a filter screen is provided on the top of the installation box, a water pump is installed inside the installation box, and the output end of the water pump extends to the outside of the cover plate and is fixed with a connecting pipe.

[0017] Preferably, one end of the connecting pipe away from the water pump is connected to one end of the first delivery pipe, and one end of the connecting pipe away from the water pump is connected to one end of the second delivery pipe.

[0018] A cleaning method for a finishing mill unit capable of oppositely cleaning the inner and outer walls of a finishing tube comprises the following steps:

[0019] S1. Place the tube body on the top of the support seat, start the electric push rod, the electric push rod drives the tube body to move upward through the support seat to a certain height and stop, start the drive motor, the drive motor drives the teeth to move through the gears, the teeth drive the moving plate to move, the moving plate drives the first shunt seat and the second shunt seat to move in the opposite direction through the moving seat, so that the first shunt seat is sleeved on the outside of the tube body, and the second shunt seat is moved to the inside of the tube body;

[0020] S2. Start the electric push rod, which drives the support seat to move downward to avoid blocking the cleaning of the pipe body, start the water pump, and the water pump transports the water in the water tank to the inside of the connecting pipe, and then enters the first diverter seat and the second diverter seat through the connecting pipe, start the driving motor, and the driving motor drives the teeth to move through the gears, and the teeth drive the moving plate to move, and the moving plate drives the first diverter seat and the second diverter seat to move in the opposite direction through the moving seat, so that the first diverter seat cleans the outer wall of the pipe body, and the second diverter seat cleans the inner wall of the pipe body;

[0021] S3. During the cleaning process, the cleaned water falls into the water tank, is filtered through the filter, and the filtered water is re-transported by the water pump for cleaning;

[0022] S4. After cleaning is completed, the water pump is turned off and the electric push rod is started. The electric push rod drives the supporting seat to move to the bottom end of the pipe body, and then the driving motor is started to separate the first diverter seat and the second diverter seat from the pipe body. The electric push rod is started and the electric push rod drives the pipe body to move downward back to its original position through the supporting seat.

[0023] The present invention provides a finishing mill unit capable of oppositely cleaning the inner and outer walls of a finishing tube and a cleaning method thereof, which has the advantages that:

[0024] By providing a moving structure, starting a driving motor, the driving motor drives the gear to rotate, and the gear drives the moving plate to move through the teeth, and the teeth are staggered on both sides of the gear, so that the moving plate drives the moving seats on both sides of the slide rail to move in the opposite direction, and the moving seat drives the slide seat to move on the outside of the slide rail. Under the action of the slide seat, the stability of the moving seat during movement is enhanced, and the moving seat on one side above the platform drives the first diverter seat to move to the outside of one end of the pipe body, and the moving seat on the other side above the platform drives the second diverter seat to move inside one end of the pipe body, so that it is convenient to clean the inner and outer walls of the pipe body at the same time, realizing the opposite cleaning function of the device, thereby improving the working efficiency of the finishing rolling unit that can oppositely clean the inner and outer walls of the finishing pipe when in use;

[0025] By providing a cleaning structure, when the supporting seat drives the pipe body to move upward, the moving seat drives the fixed plate to move, and the fixed plate drives the first diverter seat to move to the outside of the pipe body through the first delivery pipe, and the water pump is started. The water pump delivers the water inside the water tank to the inside of the connecting pipe, and the water inside the connecting pipe enters the inside of the first diverter seat through the first delivery pipe, and is finally discharged through the water spray holes. Under the action of the water spray holes distributed at equal intervals, it is convenient to clean the outside of the pipe body, and the function of the device to facilitate cleaning of the outer wall is realized, thereby improving the convenience of the finishing mill unit capable of oppositely cleaning the inner and outer walls of the finishing pipe when in use;

[0026] By providing a supporting structure, the pipe body is placed on the top of the supporting seat, and the electric push rod is started, the electric push rod drives the supporting seat to move, and the supporting seat drives the sliding rod to move inside the bracket. Under the action of the sliding rod, the stability of the supporting seat during movement is enhanced. Under the action of the supporting seat, it is convenient to support the pipe body, and the supporting seat drives the pipe body to move upward. When the first diverter seat moves to the outside of the pipe body and the second diverter seat moves to the inside of the pipe body, the electric push rod is started, and the electric push rod drives the supporting seat to move downward and return to its position, realizing the function of facilitating support of the device, thereby improving the comfort of the finishing rolling unit capable of oppositely cleaning the inner and outer walls of the finishing rolling pipe when in use;

[0027] By providing a flushing structure, when the supporting seat drives the tube body to move upward, the movable seat drives the supporting plate to move, and the supporting plate drives the second diverter seat to move to the inside of the tube body through the second delivery pipe, and the water pump is started. The water pump delivers the water in the water tank to the inside of the connecting pipe, and the water in the connecting pipe enters the inside of the second diverter seat through the second delivery pipe, and then is discharged through the first nozzle and the second nozzle. Under the action of the first nozzle, the inner wall of the tube body is conveniently cleaned, and under the action of the second nozzle, the impurities in front are conveniently flushed, ensuring that the second diverter seat can pass smoothly to flush the inner wall of the tube body, thereby realizing the function of facilitating the cleaning of the inner wall, thereby improving the applicability of the finishing mill unit that can clean the inner and outer walls of the finishing tube in opposite directions when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0029] Figure 2 It is a front cross-sectional schematic diagram of the present invention;

[0030] Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0031] Figure 4 It is a side cross-sectional schematic diagram of the present invention;

[0032] Figure 5 It is a side cross-sectional schematic diagram of the support structure of the present invention;

[0033] Figure 6 It is a three-dimensional schematic diagram of the cleaning structure of the present invention;

[0034] Figure 7 It is a three-dimensional schematic diagram of the flushing structure of the present invention;

[0035] Figure 8 It is a three-dimensional schematic diagram of the cross section of the flushing structure of the present invention;

[0036] Fig. 9 It is a three-dimensional schematic diagram of the cleaning structure cross section of the present invention;

[0037] Fig.10 It is a top view schematic diagram of the present invention.

[0038] Explanation of the reference numerals in the figure: 1. water tank; 2. support foot; 3. platform; 4. moving structure; 401. gear; 402. slide rail; 403. drive motor; 404. slide seat; 405. moving seat; 406. moving plate; 407. teeth; 5. cleaning structure; 501. fixed plate; 502. first delivery pipe; 503. first diversion seat; 504. water spray hole; 6. pipe body; 7. supporting structure; 701. bracket; 702. electric push rod; 703. supporting seat; 704. slide rod; 8. flushing structure; 801. support plate; 802. second delivery pipe; 803. second diversion seat; 804. first nozzle; 805. second nozzle; 9. water spray assembly; 901. installation box; 902. water pump; 903. filter screen; 904. cover plate; 905. connecting pipe; 10. sewage pipe. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1-Figure 10 The present invention provides a finishing mill capable of oppositely cleaning the inner and outer walls of a finishing tube, comprising a water tank 1 and legs 2. The legs 2 are evenly fixed on both sides of the inside of the water tank 1. The tops of the legs 2 extend to the outside of the water tank 1 and are fixed with a platform 3. A moving structure 4 is arranged on the top of the platform 3. The moving structure 4 comprises a gear 401, a slide rail 402, a drive motor 403, a slide seat 404, a moving seat 405, a moving plate 406 and teeth 407. The gear 401 is arranged on the top of the platform 3. A drive motor 403 is installed on the bottom of the platform 3 below the gear 401. Slide rails 402 are fixed on both sides of the top of the platform 3, and slide seats 404 are arranged on the outer sides of the tops of the slide rails 402. Moving seats 405 are fixed on the tops of the slide seats 404, and moving plates 406 are fixed on one side of the bottoms of the moving seats 405. Teeth 407 are evenly fixed on one side of the moving plates 406. The output end of the driving motor 403 extends to the top of the platform 3 and is fixedly connected to the bottom of the gear 401. The slide seats 404 and the moving seats 405 constitute a sliding structure, and the gear 401 is meshed with the teeth 407, and the teeth 407 are staggered on both sides of the gear 401.

[0041] Reference Figure 2 and Figure 4As shown, the drive motor 403 is started, and the drive motor 403 drives the gear 401 to rotate. The gear 401 drives the moving plate 406 to move through the teeth 407. The teeth 407 are staggered on both sides of the gear 401, so that the moving plate 406 drives the moving seats 405 on both sides of the slide rail 402 to move in the opposite direction, and the moving seat 405 drives the slide seat 404 to move on the outside of the slide rail 402. Under the action of the slide seat 404, the stability of the moving seat 405 during movement is enhanced, and the moving seat 405 on one side above the platform 3 drives the first diverter seat 503 to move to the outside of one end of the tube body 6, and the moving seat 405 on the other side above the platform 3 drives the second diverter seat 803 to move inside one end of the tube body 6, so as to facilitate the cleaning of the inner and outer walls of the tube body 6 at the same time.

[0042] A cleaning structure 5 is fixed to the top of the movable structure 4 on one side above the platform 3, and the cleaning structure 5 includes a fixed plate 501, a first conveying pipe 502, a first diverter seat 503 and a water spray hole 504. The fixed plate 501 is fixed to the top of the movable seat 405 on one side above the platform 3, and the first conveying pipe 502 passes through the top of the fixed plate 501. The first diverter seat 503 is fixed to one end of the first conveying pipe 502, and water spray holes 504 are evenly opened on the inner side of the first diverter seat 503. The first diverter seat 503 and the tube body 6 constitute a sliding structure, and the water spray holes 504 are evenly distributed inside the first diverter seat 503.

[0043] Reference Figure 6 and Fig. 9 As shown, when the supporting seat 703 drives the tube body 6 to move upward, the movable seat 405 drives the fixed plate 501 to move, and the fixed plate 501 drives the first diverter seat 503 to move to the outside of the tube body 6 through the first delivery pipe 502, and the water pump 902 is started. The water pump 902 transports the water inside the water tank 1 to the inside of the connecting pipe 905, and the water inside the connecting pipe 905 enters the inside of the first diverter seat 503 through the first delivery pipe 502, and is finally discharged through the water spray hole 504. Under the action of the water spray holes 504 distributed at equal intervals, it is convenient to clean the outside of the tube body 6.

[0044] A flushing structure 8 is fixed to the top of the movable structure 4 on the other side above the platform 3, and the flushing structure 8 includes a support plate 801, a second delivery pipe 802, a second diverter seat 803, a first nozzle 804 and a second nozzle 805. The support plate 801 is fixed to the top of the movable seat 405 on the other side above the platform 3, and the second delivery pipe 802 runs through the top of the support plate 801. One end of the second delivery pipe 802 extends to the inside of the tube body 6 and is fixed with the second diverter seat 803. A second nozzle 805 is fixed to one end of the second diverter seat 803, and the first nozzle 804 is evenly fixed on the outside of the second diverter seat 803.

[0045] Reference Figure 7 and Figure 8As shown, when the supporting seat 703 drives the tube body 6 to move upward, the movable seat 405 drives the support plate 801 to move, and the support plate 801 drives the second diverter seat 803 to move to the inside of the tube body 6 through the second delivery pipe 802, and the water pump 902 is started. The water pump 902 delivers the water inside the water tank 1 to the inside of the connecting pipe 905, and the water inside the connecting pipe 905 enters the inside of the second diverter seat 803 through the second delivery pipe 802, and then is discharged through the first nozzle 804 and the second nozzle 805. Under the action of the first nozzle 804, it is convenient to clean the inner wall of the tube body 6, and under the action of the second nozzle 805, it is convenient to flush the impurities in the front, ensuring that the second diverter seat 803 passes smoothly to flush the inner wall of the tube body 6.

[0046] A support structure 7 is provided at the middle position of the top of the platform 3, and the support structure 7 includes a bracket 701, an electric push rod 702, a supporting seat 703 and a sliding rod 704. The bracket 701 is fixed at the middle position of the top of the platform 3. The electric push rod 702 runs through one side of the top of the bracket 701, and the supporting seat 703 is fixed to the top of the electric push rod 702. A sliding rod 704 runs through the inside of the bracket 701 on one side of the electric push rod 702, and the top of the sliding rod 704 is fixedly connected to the bottom end of the supporting seat 703. The sliding rod 704 and the bracket 701 constitute a sliding structure. A pipe body 6 is provided above the support structure 7. Water spraying components 9 are installed on both sides of the bottom of the water tank 1. A sewage pipe 10 is fixed on one side, and the water spray assembly 9 includes an installation box 901, a water pump 902, a filter 903, a cover plate 904 and a connecting pipe 905. The installation box 901 is fixed on both sides of the bottom of the water tank 1, and a cover plate 904 is fixed at one end of the installation box 901. A filter 903 is arranged on the top of the installation box 901. A water pump 902 is installed inside the installation box 901. The output end of the water pump 902 extends to the outside of the cover plate 904 and is fixed with a connecting pipe 905. The end of the connecting pipe 905 away from the water pump 902 is connected to one end of the first delivery pipe 502, and the end of the connecting pipe 905 away from the water pump 902 is connected to one end of the second delivery pipe 802.

[0047] Reference Figure 2 and Figure 5As shown, the tube body 6 is placed on the top of the support seat 703, and the electric push rod 702 is started. The electric push rod 702 drives the support seat 703 to move, and the support seat 703 drives the slide bar 704 to move inside the bracket 701. Under the action of the slide bar 704, the stability of the support seat 703 during movement is enhanced. Under the action of the support seat 703, it is convenient to support the tube body 6. The support seat 703 drives the tube body 6 to move upward. When the first diverter seat 503 moves to the outside of the tube body 6, the second diverter seat 503 moves to the outside of the tube body 6. When the second diversion seat 803 moves to the inside of the tube body 6, the electric push rod 702 is started, and the electric push rod 702 drives the supporting seat 703 to move downward and return to its original position, and the water pump 902 is started. The water pump 902 transports the water inside the water tank 1 to facilitate the cleaning of the tube body 6. The cleaned water falls into the inside of the water tank 1, and under the action of the filter 903, the water is conveniently filtered. The filtered water cleans the tube body 6, and impurities will stay at the bottom of the water tank 1 and then be discharged through the sewage pipe 10.

[0048] A cleaning method for a finishing mill unit capable of oppositely cleaning the inner and outer walls of a finishing tube comprises the following steps:

[0049] S1. Place the tube body 6 on the top of the support seat 703, start the electric push rod 702, the electric push rod 702 drives the tube body 6 to move upward to a certain height through the support seat 703 and stops, start the drive motor 403, the drive motor 403 drives the gear 407 to move through the gear 401, the gear 407 drives the moving plate 406 to move, the moving plate 406 drives the first shunt seat 503 and the second shunt seat 803 to move in the opposite direction through the moving seat 405, so that the first shunt seat 503 is sleeved on the outside of the tube body 6, and the second shunt seat 803 is moved to the inside of the tube body 6;

[0050] S2. Start the electric push rod 702, which drives the supporting seat 703 to move downward to avoid blocking the cleaning of the tube body 6. Start the water pump 902, which transports the water inside the water tank 1 to the inside of the connecting pipe 905, and then enters the first diverter seat 503 and the second diverter seat 803 through the connecting pipe 905. Start the drive motor 403, which drives the gear 407 to move through the gear 401, and the gear 407 drives the moving plate 406 to move. The moving plate 406 drives the first diverter seat 503 and the second diverter seat 803 to move in the opposite direction through the moving seat 405, so that the first diverter seat 503 cleans the outer wall of the tube body 6, and the second diverter seat 803 cleans the inner wall of the tube body 6;

[0051] S3. During the cleaning process, the cleaned water falls into the interior of the water tank 1, is filtered through the filter 903, and the filtered water is re-transported by the water pump 902 for cleaning;

[0052] S4. After cleaning is completed, turn off the water pump 902, start the electric push rod 702, and the electric push rod 702 drives the supporting seat 703 to move to the bottom end of the tube body 6, then start the driving motor 403 to separate the first diverter seat 503 and the second diverter seat 803 from the tube body 6, start the electric push rod 702, and the electric push rod 702 drives the tube body 6 to move downward back to its original position through the supporting seat 703.

[0053] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A finishing mill unit capable of cleaning the inner and outer walls of a finishing tube in opposite directions, comprising a water tank (1) and a support leg (2); Features: Support legs (2) are evenly fixed on both sides of the water tank (1), the top ends of the support legs (2) extend to the outside of the water tank (1) and are fixed with a platform (3), the top end of the platform (3) is provided with a moving structure (4), the moving structure (4) comprises a gear (401), a slide rail (402), a drive motor (403), a slide seat (404), a moving seat (405), a moving plate (406) and teeth (407), the gear (401) is provided on the platform (3) The top of the gear (401) is provided with a driving motor (403) at the bottom of the platform (3) below the gear (401), slide rails (402) are fixed on both sides of the top of the platform (3), a slide seat (404) is provided on the outer side of the top of the slide rail (402), a moving seat (405) is fixed on the top of the slide seat (404), a moving plate (406) is fixed on one side of the bottom of the moving seat (405), and teeth (407) are evenly fixed on one side of the moving plate (406); A cleaning structure (5) is fixed on the top of a movable structure (4) on one side above the platform (3), a flushing structure (8) is fixed on the top of a movable structure (4) on the other side above the platform (3), a supporting structure (7) is arranged at the middle position of the top of the platform (3), and a pipe body (6) is arranged above the supporting structure (7); Water spray assemblies (9) are installed on both sides of the bottom of the water tank (1), and a sewage pipe (10) is fixed on one side of the bottom of the water tank (1).

2. A finishing mill capable of oppositely cleaning the inner and outer walls of a finishing tube according to claim 1, characterized in that: The output end of the driving motor (403) extends to the top of the platform (3) and is fixedly connected to the bottom end of the gear (401); the sliding seat (404) and the moving seat (405) form a sliding structure; the gear (401) and the teeth (407) are meshed and connected; and the teeth (407) are staggeredly distributed on both sides of the gear (401).

3. A finishing mill capable of oppositely cleaning the inner and outer walls of a finishing tube according to claim 1, characterized in that: The cleaning structure (5) comprises a fixed plate (501), a first delivery pipe (502), a first diverter seat (503) and a water spray hole (504); the fixed plate (501) is fixed to the top of a movable seat (405) on one side above the platform (3); the top of the fixed plate (501) is penetrated by a first delivery pipe (502); one end of the first delivery pipe (502) is fixed with a first diverter seat (503); and the inner side of the first diverter seat (503) is evenly provided with water spray holes (504).

4. A finishing mill capable of oppositely cleaning the inner and outer walls of a finishing tube according to claim 3, characterized in that: The first flow diverter seat (503) and the tube body (6) form a sliding structure, and the water spray holes (504) are distributed at equal intervals inside the first flow diverter seat (503).

5. A finishing mill capable of oppositely cleaning the inner and outer walls of a finishing tube according to claim 1, characterized in that: The support structure (7) comprises a bracket (701), an electric push rod (702), a supporting seat (703) and a sliding rod (704); the bracket (701) is fixed at the middle position of the top of the platform (3); an electric push rod (702) passes through one side of the top of the bracket (701); a supporting seat (703) is fixed to the top of the electric push rod (702); and a sliding rod (704) passes through the inside of the bracket (701) on one side of the electric push rod (702).

6. A finishing mill capable of oppositely cleaning the inner and outer walls of a finishing tube according to claim 5, characterized in that: The top end of the sliding rod (704) is fixedly connected to the bottom end of the supporting seat (703), and the sliding rod (704) and the bracket (701) form a sliding structure.

7. A finishing mill capable of oppositely cleaning the inner and outer walls of a finishing tube according to claim 1, characterized in that: The flushing structure (8) comprises a support plate (801), a second delivery pipe (802), a second diverter seat (803), a first nozzle (804) and a second nozzle (805); the support plate (801) is fixed to the top of the movable seat (405) on the other side above the platform (3); the second delivery pipe (802) runs through the top of the support plate (801); one end of the second delivery pipe (802) extends to the inside of the tube body (6) and is fixed with the second diverter seat (803); one end of the second diverter seat (803) is fixed with the second nozzle (805); and the first nozzle (804) is evenly fixed on the outside of the second diverter seat (803).

8. The finishing mill capable of oppositely cleaning the inner and outer walls of the finishing tube according to claim 1, characterized in that: The water spray assembly (9) comprises an installation box (901), a water pump (902), a filter (903), a cover plate (904) and a connecting pipe (905); the installation box (901) is fixed to both sides of the bottom of the water tank (1); one end of the installation box (901) is fixed with a cover plate (904); the top of the installation box (901) is provided with a filter screen (903); the interior of the installation box (901) is installed with a water pump (902); the output end of the water pump (902) extends to the outside of the cover plate (904) and is fixed with a connecting pipe (905).

9. A finishing mill capable of oppositely cleaning the inner and outer walls of a finishing tube according to claim 8, characterized in that: One end of the connecting pipe (905) away from the water pump (902) is connected to one end of the first delivery pipe (502), and one end of the connecting pipe (905) away from the water pump (902) is connected to one end of the second delivery pipe (802).

10. A method for cleaning a finishing mill unit using the method for cleaning the inner and outer walls of a finishing tube in opposite directions as claimed in claims 3, 5, 7 and 8, comprising the following steps, characterized in that: S1. Place the tube body (6) on the top of the support seat (703), start the electric push rod (702), the electric push rod (702) drives the tube body (6) to move upward to a certain height through the support seat (703) and stops, start the drive motor (403), the drive motor (403) drives the teeth (407) to move through the gear (401), the teeth (407) drives the moving plate (406) to move, the moving plate (406) drives the first diverter seat (503) and the second diverter seat (803) to move in the opposite direction through the moving seat (405), so that the first diverter seat (503) is sleeved on the outside of the tube body (6), and the second diverter seat (803) is moved to the inside of the tube body (6); S2. Start the electric push rod (702), which drives the supporting seat (703) to move downward to avoid blocking the cleaning of the tube body (6), start the water pump (902), and the water pump (902) transports the water in the water tank (1) to the inside of the connecting pipe (905), and then enters the inside of the first diverter seat (503) and the second diverter seat (803) through the connecting pipe (905), start the driving motor (403), and the driving motor (403) drives the teeth (407) to move through the gear (401), and the teeth (407) drives the moving plate (406) to move, and the moving plate (406) drives the first diverter seat (503) and the second diverter seat (803) to move in the opposite direction through the moving seat (405), so that the first diverter seat (503) cleans the outer wall of the tube body (6), and the second diverter seat (803) cleans the inner wall of the tube body (6); S3. During the cleaning process, the cleaned water falls into the interior of the water tank (1), is filtered through the filter (903), and the filtered water is re-transported by the water pump (902) for cleaning; S4. After cleaning is completed, the water pump (902) is turned off and the electric push rod (702) is started. The electric push rod (702) drives the supporting seat (703) to move to the bottom end of the tube body (6). Then, the drive motor (403) is started to separate the first diverter seat (503) and the second diverter seat (803) from the tube body (6). The electric push rod (702) is started and the electric push rod (702) drives the tube body (6) to move downward and back to its original position through the supporting seat (703).

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