A strip surface residual water blowing device

Abstract

The present application relates to the technical field of strip production. The present application is a kind of strip surface residual water blowing device, including workbench, support and several groups of equal interval blowing mechanism arranged on the top of support;Blowing mechanism includes several groups of nozzles arranged on several cross beams respectively, the same group of nozzles is symmetrically distributed about the center line of strip, several groups of nozzles are sequentially distributed from the middle to both sides along the moving direction of strip;By setting multiple rows of nozzles, compressed air is blown from the middle to both sides of the strip through the scattering nozzle, which better blows the water on the surface of the strip clean, the air ejected through the shunt pipe when the nozzle is blocked is used as power, which drives the outer rotating ring to rotate, the outer rotating ring drives the support to move and the inner rotating disc to rotate, thereby realizing the function of replacing the nozzle, with high degree of automation, which saves the additional installation of power auxiliary system for driving replacement operation and reduces the use cost.

Description

A device for removing residual water from the surface of a steel strip Technical Field

[0001] This invention relates to the field of strip steel production technology, and in particular to a strip steel surface residual water blowing device. Background Technology

[0002] During the cold rolling process, the strip is wet-leveled using a continuous cold rolling leveling machine to eliminate edge and center waviness and improve the surface finish of the strip. During continuous production on the continuous cold rolling line, the wet leveling system will bring out a large amount of water from the leveled strip surface. If the leveling liquid on the strip surface is not cleaned up in time, it will cause the strip to turn yellow, thus affecting the surface quality of the strip.

[0003] A patent application with publication number CN217858043U discloses a strip cleaning device, including a height-adjustable base and two sets of cleaning modules respectively disposed on both sides of the strip. The distance between the cleaning modules and the strip is adjustable. The cleaning device drives the cleaning modules through a control module to adjust the position and direction of the cleaning modules, so that the cleaning modules are consistently kept at the edge of the strip to achieve the best cleaning effect.

[0004] However, the above technical solutions still have some problems. The purging device blows air onto the strip from both sides, which may cause airflow interference and some residual water may remain in the middle of the strip, resulting in limited purging effect. In addition, the nozzles in the purging system are connected to the compressed air system. During the transportation of compressed air through pipelines, the compressed air may contain impurities such as moisture and rust due to environmental factors and the inner wall of the pipeline. These impurities can easily clog the nozzles, affecting the purging intensity and requiring timely nozzle replacement. In actual production, a type of nozzle commonly used is a spiral installation structure, which requires rotating the nozzle for disassembly and assembly. However, the impact force of compressed air is relatively large, and the compressed air system needs to be shut down when disassembling and assembling the nozzle. This leads to machine shutdown for operation, reducing work efficiency. The above technical solutions have not effectively solved these problems.

[0005] Therefore, the present invention provides a device for blowing away residual water on the surface of steel strip. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a strip surface residual water blowing device, including a workbench, on which a transmission unit for driving the strip to move is provided, and further including: supports fixed to both sides of the top of the workbench, and a plurality of crossbeams arranged at equal intervals fixed between the two supports; a plurality of blowing mechanisms arranged at equal intervals on the top of the supports, the blowing mechanism including a plurality of nozzles respectively arranged on the plurality of crossbeams, the nozzles in the same group being symmetrically distributed about the center line of the strip, and the plurality of nozzles being distributed sequentially from the center to both sides along the strip moving direction.

[0007] In one embodiment of the present invention, the purging mechanism further includes an air guide pipe fixed below the crossbeam, the nozzle being threadedly connected to the end of the air guide pipe, and the nozzle being obliquely downward.

[0008] In one embodiment of the present invention, a replacement mechanism is further included, the replacement mechanism comprising: a support rod fixed below the crossbeam; an inner turntable rotatably mounted on the support rod, the air guide pipe passing through the inner turntable, and a groove corresponding to the air guide pipe beginning on the inner turntable; and two supports slidably mounted on the inner turntable, the two supports being symmetrically distributed about the center of the inner turntable, and each of the two supports having a nozzle rotatably mounted inside.

[0009] In one embodiment of the present invention, the replacement mechanism further includes: a driven wheel and a driving wheel rotatably mounted in the support, the driven wheel meshing with the driving wheel, the driven wheel being engaged with the nozzle, and the driven wheel being concentric with the nozzle; and a screw fixed to the inner turntable, the screw passing through the driving wheel, and the inner wall of the driving wheel being threadedly connected to the screw.

[0010] In one embodiment of the present invention, the replacement mechanism further includes a positioning component, the positioning component comprising: a telescopic rod obliquely mounted between the inner turntable and the support, the two ends of the telescopic rod being movably hinged to the inner turntable and the support respectively; and a support spring for pushing the telescopic rod to extend outward.

[0011] In one embodiment of the present invention, a control mechanism is further included, comprising: an outer rotating ring rotatably mounted on the outside of the inner rotating disk; a damping element provided on the inner rotating disk; a notch provided on the ring side of the inner rotating disk; a protruding rod fixedly connected to the inner wall of the outer rotating ring and inserted into the notch; a positioning spring installed between the protruding rod and the notch; a guide rail fixedly mounted on the crossbeam, the guide rail being located on the outside of the outer rotating ring; a slider slidably mounted in the guide rail, the slider being provided with a return spring; a first inclined plate fixedly mounted on the outer rotating ring for pressing the slider to move closer to the air duct, and the slider deflecting the telescopic rod after moving; the first inclined plate having a unidirectional rotation structure; and a second inclined ramp fixedly mounted on the outer rotating ring for pressing the telescopic rod to rotate.

[0012] In one embodiment of the present invention, the slider has a through groove, the first inclined plate passes through the groove, the end of the slider is located between the first inclined plate and the second inclined slope, and the telescopic rod is offset from the second inclined slope.

[0013] In one embodiment of the present invention, the control mechanism further includes: a diversion pipe connected to the air guide pipe; and a valve for controlling the opening and closing of the diversion pipe.

[0014] In one embodiment of the present invention, the control mechanism further includes two sets of fan blades fixed to the outer rotating ring, and the diversion pipe has two outlets, and the two outlets correspond to the two sets of fan blades respectively.

[0015] In one embodiment of the present invention, two positioning holes are provided on the outer rotating ring, and a positioning block is provided on the crossbeam that is inserted into the positioning holes.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] 1. The strip surface residual water blowing device described in this invention addresses the issue that during continuous production on a cold rolling annealing line, the wet leveling system can cause a large amount of water to be carried out on the leveled strip surface. By setting up multiple rows of nozzles, compressed air is blown from the middle of the strip to both sides through the scattering nozzles, which can better clean the water off the strip surface and lay a solid foundation for a good drying effect in the future.

[0018] 2. The strip surface residual water blowing device of the present invention is provided with two sets of supports and nozzles on the inner turntable, and a diversion pipe and valve are provided on the air guide pipe connected to the nozzle. When the nozzle in use becomes blocked, the valve is activated so that compressed air is ejected from the diversion pipe. Then the blocked nozzle is removed, and after rotating the inner turntable, a spare nozzle can be installed on the air guide pipe. This realizes the work of changing nozzles without stopping the machine, thus improving work efficiency.

[0019] 3. The strip surface residual water blowing device of the present invention uses the air ejected through the diverter pipe when the nozzle is blocked as power to drive the outer rotating ring to rotate. The outer rotating ring then drives the support to move and the inner rotating plate to rotate, thereby realizing the function of removing the blocked nozzle and installing the spare nozzle on the air guide pipe. It has a high degree of automation, eliminates the need for an additional electric auxiliary system for driving the replacement operation, reduces the operating cost, and the way the compressed air is diverted reduces the obstruction between the nozzle and the air guide pipe, which helps to facilitate the smooth operation of the replacement work. Attached Figure Description

[0020] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a schematic diagram of the strip transport direction of the present invention;

[0023] Figure 3 is a partial perspective view of the purging mechanism and crossbeam of the present invention;

[0024] Figure 4 is a perspective view of the purging mechanism and the replacement mechanism of the present invention;

[0025] Figure 5 is a perspective view of the inner turntable of the present invention;

[0026] Figure 6 is a perspective view of the outer rotating ring of the present invention;

[0027] Figure 7 is a perspective view of the nozzle installation structure of the present invention within the support;

[0028] Figure 8 is a perspective view of the nozzle and support of the present invention from the rear side;

[0029] Figure 9 is an exploded view of the nozzle and support of the present invention;

[0030] Figure 10 is a perspective view of the positioning component and slider of the present invention;

[0031] Figure 11 is a perspective view of the structure of the support and slider of the present invention;

[0032] Figure 12 is a partial enlarged view of point A in Figure 11 of this invention;

[0033] Explanation of reference numerals in the accompanying drawings: 1. Workbench; 2. Support; 21. Crossbeam; 211. Positioning block; 3. Blowing mechanism; 31. Nozzle; 32. Air guide pipe; 4. Changing mechanism; 41. Support rod; 42. Inner turntable; 421. Slide groove; 422. Notch; 43. Support; 44. Driven wheel; 45. Driving wheel; 46. Screw; 47. Positioning assembly; 471. Telescopic rod; 472. Support spring; 5. Control mechanism; 51. Outer rotating ring; 511. Protruding rod; 512. Positioning spring; 513. Positioning hole; 52. Guide rail; 53. Slider; 54. First inclined plate; 55. Second inclined slope; 56. Diverter pipe; 57. Valve; 58. Fan blade. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0035] Referring to Figures 1-2, a strip steel surface residual water blowing device of the present invention includes a workbench 1, on which a transmission unit for driving the strip steel to move is provided, and further includes: a support 2 fixed to both sides of the top of the workbench 1, and a plurality of crossbeams 21 arranged at equal intervals fixed between the two supports 2; a plurality of blowing mechanisms 3 arranged at equal intervals at the top of the supports 2, the blowing mechanism 3 including a plurality of nozzles 31 respectively arranged on the plurality of crossbeams 21, the nozzles 31 in the same group being symmetrically distributed about the center line of the strip steel, and the plurality of nozzles 31 being distributed sequentially from the center to both sides along the moving direction of the strip steel.

[0036] Specifically, the workbench 1 is set on the leveling machine. Compressed air is supplied to the nozzles 31 through devices such as air compressors. During continuous production on the cold rolling continuous annealing line, the wet leveling system will cause a large amount of water to be carried out on the surface of the leveled strip. The transmission unit drives the leveled strip to move on the workbench 1. The support 2 and the crossbeam 21 form a gantry structure, and the strip passes under the nozzles 31. During the movement of the strip, several sets of nozzles 31 blow the strip from the middle of the strip to both sides, which can better blow away the water on the surface of the strip. After the strip passes under the blowing mechanism 3, the surface of the strip is basically free of water, which lays a solid foundation for a good drying effect in the later stage.

[0037] As shown in Figures 1-8, the purging mechanism 3 also includes an air guide pipe 32 fixed below the crossbeam 21, and the nozzle 31 is threadedly connected to the end of the air guide pipe 32, with the nozzle 31 being obliquely downward.

[0038] Specifically, the air guide pipe 32 is connected to an air delivery device such as an air compressor, and the inclined nozzle 31 is used to blow away the residual water on the surface of the strip steel to both sides. The nozzle 31 is threadedly connected to the air guide pipe 32. When the nozzle 31 is blocked or has other problems, the nozzle 31 can be disassembled and replaced.

[0039] As shown in Figures 1-10, the system also includes a replacement mechanism 4, which comprises: a support rod 41 fixed below the crossbeam 21; an inner turntable 42 rotatably mounted on the support rod 41, through which the air guide pipe 32 passes, and a groove 421 corresponding to the air guide pipe 32 is formed on the inner turntable 42; and two supports 43 slidably mounted on the inner turntable 42, the two supports 43 being symmetrically distributed about the center of the inner turntable 42, and each of the two supports 43 having a nozzle 31 rotatably mounted inside.

[0040] Specifically, the moving direction of the support 43 is parallel to the radial direction of the air guide tube 32. Taking Figure 4 as an example, the lower nozzle 31 passes through the slide groove 421 and is installed on the air guide tube 32. The lower nozzle 31 is in use, and the upper nozzle 31 is a spare nozzle 31. When the nozzle 31 is clogged or needs to be replaced, rotate the lower nozzle 31 to remove it from the air guide tube 32. Move the support 43 so that the lower nozzle 31 moves to the front of the inner turntable 42 and is completely separated from the air guide tube 32. Then rotate the inner turntable 42 to swap the positions of the two nozzles 31. Rotate the spare nozzle 31 to align it with the air guide tube 32. Then rotate the spare nozzle 31 again to install it on the air guide tube 32. In this way, the replacement of the nozzle 31 can be completed quickly. Then, the clogged nozzle 31 can be removed from the inner turntable 42 and replaced with a new nozzle 31.

[0041] As shown in Figures 4-9, the replacement mechanism 4 further includes: a driven wheel 44 and a driving wheel 45 rotatably mounted in the support 43, the driven wheel 44 meshing with the driving wheel 45, the driven wheel 44 being engaged with the nozzle 31, and the driven wheel 44 being concentric with the nozzle 31; and a screw 46 fixed to the inner turntable 42, the screw 46 passing through the driving wheel 45, and the inner wall of the driving wheel 45 being threadedly connected to the screw 46.

[0042] Specifically, during the process of moving the support 43, the drive wheel 45 rotates automatically under the action of the screw 46, and drives the driven wheel 44 and the nozzle 31 to rotate. Therefore, moving the support 43 can automatically drive the nozzle 31 to rotate, so as to install and remove the nozzle 31.

[0043] As shown in Figure 4-12, the replacement mechanism 4 further includes a positioning component 47, which includes: a telescopic rod 471 installed at an angle between the inner turntable 42 and the support 43, with both ends of the telescopic rod 471 being movably hinged to the inner turntable 42 and the support 43 respectively; and a support spring 472 for pushing the telescopic rod 471 to extend outward.

[0044] Specifically, the telescopic rod 471 remains extended under the push of the support spring 472, and the support 43 remains in a stable position, thereby improving the positional stability of the nozzle 31 on the inner turntable 42. Taking Figure 4 as an example, in the initial state, the deflections of the upper and lower telescopic rods 471 are opposite, the upper support 43 is away from the inner turntable 42, and the upper nozzle 31 is located on the front of the inner turntable 42, while the lower support 43 is close to the inner turntable 42, and the lower nozzle 31 passes through the slide groove 421 and is connected to the air guide tube 32.

[0045] As shown in Figure 3-12, the system also includes a control mechanism 5, which comprises: an outer rotating ring 51 rotatably mounted on the outside of the inner rotating disk 42; a damping element on the inner rotating disk 42; a notch 422 on the ring side of the inner rotating disk 42; a protruding rod 511 fixedly connected to the inner wall of the outer rotating ring 51 and inserted into the notch 422; a positioning spring 512 installed between the protruding rod 511 and the notch 422; a guide rail 52 fixedly mounted on the crossbeam 21 and located on the outside of the outer rotating ring; a slider 53 slidably mounted in the guide rail 52 and provided with a return spring; a first inclined plate 54 fixedly mounted on the outer rotating ring 51 for pressing the slider 53 to move closer to the air duct 32, and the slider 53 pressing the telescopic rod 471 to deflect after moving; the first inclined plate 54 is a unidirectional rotating structure; and a second ramp 55 fixedly mounted on the outer rotating ring 51 for pressing the telescopic rod 471 to rotate.

[0046] Specifically, taking Figure 4 as an example, in the initial state, the inner turntable 42 remains stable under the action of the damping element and will not rotate easily; when changing the nozzle 31, the outer rotating ring 51 is started to rotate counterclockwise. In the first stage of the rotation of the outer rotating ring 51, the inner turntable 42 remains stationary under the action of the damping element. During this process, the first inclined plate 54 pushes the slider 53 to move towards the direction of the air guide tube 32. After the slider 53 moves, it squeezes the end of the lower telescopic rod 471, causing the telescopic rod 471 to deflect. The deflected telescopic rod 471 drives the lower support 43 to move away from the air guide tube 32. As the support 43 moves away from the inner turntable 42, it drives the lower nozzle 31 to rotate and be removed from the air guide tube 32. During this process, the positioning spring 512 is compressed.

[0047] In the second stage of the outer rotating ring 51 continuing to rotate, the protruding rod 511 contacts the notch 422, and the outer rotating ring 51 drives the inner rotating disk 42 to rotate counterclockwise together through the protruding rod 511 and the notch 422, so that the upper spare nozzle 31 rotates to the lower position, the two nozzles 31 are swapped, and the positioning spring 512 pushes the inner rotating disk 42 to rotate.

[0048] When the upper spare nozzle 31 rotates to align with the air guide pipe 32, the second ramp 55 pushes the telescopic rod 471, which is matched with the spare nozzle 31, to rotate. After rotation, the telescopic rod 471 drives the support 43 and the spare nozzle 31 to move closer to the air guide pipe 32. As the support 43 approaches the inner turntable 42, it drives the lower nozzle 31 to rotate and be installed on the air guide pipe 32. In this way, by starting the outer rotating ring 51 to rotate, the replacement and disassembly of the nozzle 31 can be completed automatically. The structure is simple and the degree of automation is high.

[0049] As shown in Figure 4-12, the slider 53 has a through groove, the first inclined plate 54 passes through the groove, the end of the slider 53 is located between the first inclined plate 54 and the second inclined slope 55, and the telescopic rod 471 is offset from the second inclined slope 55.

[0050] Specifically, the telescopic rod 471 does not contact the second ramp 55 to avoid mutual interference.

[0051] As shown in Figure 3, the control mechanism 5 further includes: a diversion pipe 56 connected to the air guide pipe 32; and a valve 57 for controlling the opening and closing of the diversion pipe 56.

[0052] Specifically, when the nozzle 31 in use becomes blocked, the internal pressure of the air guide pipe 32 increases. At this time, the valve 57 is activated, so that the compressed air in the air guide pipe 32 is discharged through the diverter pipe 56, so that the nozzle 31 can be disassembled and installed at the end outlet of the air guide pipe 32. The nozzle 31 can be replaced without stopping the machine, which is highly efficient.

[0053] As shown in Figure 3, the control mechanism 5 also includes two sets of fan blades 58 fixed on the outer rotating ring 51. The diversion pipe 56 has two outlets, and the two outlets correspond to the two sets of fan blades 58 respectively.

[0054] Specifically, when nozzle 31 becomes clogged, valve 57 is activated, and compressed air flows out through one of the branch pipes 56 and blows onto one set of fan blades 58. The airflow drives the fan blades 58 and the outer rotating ring 51 to rotate, thus facilitating nozzle 31 replacement. This solution utilizes the compressed air diverted through branch pipe 56 when nozzle 31 is clogged as power to automatically replace nozzle 31 without shutting down the machine. This not only has a high degree of automation but also eliminates the need for an additional electric auxiliary system to drive the replacement operation, reducing operating costs. Furthermore, the method of diverting compressed air reduces the obstruction between nozzle 31 and air guide pipe 32, facilitating smooth replacement. The next time nozzle 31 becomes clogged, compressed air is discharged through another branch pipe 56 and blown onto another set of fan blades 58, thereby driving the outer rotating ring 51 to rotate. In this way, the outer rotating ring 51 can rotate back and forth, repeating the operation.

[0055] Example 2

[0056] As shown in Figure 3, in contrast to Embodiment 1, another embodiment of the present invention is as follows: two positioning holes 513 are provided on the outer rotating ring 51, and a positioning block 211 is provided on the crossbeam 21 that is inserted into the positioning hole 513.

[0057] Specifically, the positioning block 211 is movably inserted into the bottom end of the crossbeam 21. After the positioning block 211 is moved down and inserted into the positioning hole 513, the outer rotating ring 51 is fixed. Through the cooperation of the positioning block 211 and the positioning hole 513, the outer rotating ring 51 remains in a fixed position after rotation, thereby ensuring the positional stability of the nozzle 31.

[0058] Working principle: During continuous production on the cold rolling annealing line, the wet leveling system will cause a large amount of water to be carried out on the surface of the leveled strip. The transmission unit drives the leveled strip through the nozzle 31. During the movement of the strip, several sets of nozzles 31 blow the strip from the middle to both sides, which can better clean the water on the surface of the strip. When the nozzle 31 is blocked, the valve 57 is activated, and compressed air flows out through one of the diverter pipes 56 and blows onto one of the fan blades 58. The airflow drives the fan blades 58 and the outer rotating ring 51 to rotate.

[0059] During the first stage of the rotation of the outer rotating ring 51, the inner rotating disk 42 remains stationary under the action of the damping element. During this process, the first inclined plate 54 pushes the slider 53 to move closer to the air guide pipe 32. After the slider 53 moves, it squeezes the end of the lower telescopic rod 471, causing the telescopic rod 471 to deflect. The deflected telescopic rod 471 drives the lower support 43 to move away from the air guide pipe 32. As the support 43 moves away from the inner rotating disk 42, it drives the lower nozzle 31 to rotate and be removed from the air guide pipe 32. During this process, the positioning spring 512 is compressed.

[0060] In the second stage of the outer rotating ring 51's continued rotation, the protruding rod 511 contacts the notch 422. The outer rotating ring 51 drives the inner rotating disk 42 to rotate counterclockwise together through the protruding rod 511 and the notch 422, causing the upper spare nozzle 31 to rotate to the lower position. The positions of the two nozzles 31 are swapped, and the positioning spring 512 pushes the inner rotating disk 42 to rotate. When the upper spare nozzle 31 rotates to align with the air guide pipe 32, the second ramp 55 pushes the telescopic rod 471, which is matched with the spare nozzle 31, to rotate. After rotation, the telescopic rod 471 drives the support 43 and the spare nozzle 31 to move closer to the air guide pipe 32. As the support 43 approaches the inner rotating disk 42, it drives the lower nozzle 31 to rotate and install it onto the air guide pipe 32. In this way, the replacement and disassembly of the nozzle 31 are completed.

[0061] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A device for blowing away residual water from the surface of a steel strip, characterized in that: The system includes a workbench (1) on which a transmission unit for moving the strip steel is provided. It also includes: supports (2) fixed to both sides of the top of the workbench (1), with several equally spaced crossbeams (21) fixed between the two supports (2); and several sets of equally spaced blowing mechanisms (3) located at the top of the supports (2). Each blowing mechanism (3) includes several sets of nozzles (31) respectively located on the crossbeams (21). The nozzles (31) in the same set are symmetrically distributed about the center line of the strip steel, and the nozzles (31) are sequentially arranged from the center to both sides along the direction of strip steel movement. Distribution; the purging mechanism (3) also includes an air guide pipe (32) fixed below the crossbeam (21), the nozzle (31) is threadedly connected to the end of the air guide pipe (32), and the nozzle (31) is obliquely downward; it also includes a replacement mechanism (4), the replacement mechanism (4) includes: a support rod (41) fixed below the crossbeam (21); an inner turntable (42) rotatably mounted on the support rod (41), the air guide pipe (32) passes through the inner turntable (42), and the inner turntable (42) has a groove (421) corresponding to the air guide pipe (32). Two supports (43) are slidably mounted on the inner turntable (42). The two supports (43) are symmetrically distributed about the center of the inner turntable (42). Each of the two supports (43) has a nozzle (31) rotatably mounted inside it. The replacement mechanism (4) further includes a driven wheel (44) and a driving wheel (45) rotatably mounted inside the supports (43). The driven wheel (44) meshes with the driving wheel (45) for transmission. The driven wheel (44) is engaged with the nozzle (31). The driven wheel (44) is concentric with the nozzle (31). The screw (46) on the inner turntable (42) passes through the drive wheel (45), and the inner wall of the drive wheel (45) is threadedly connected to the screw (46); the replacement mechanism (4) also includes a positioning component (47), which includes: a telescopic rod (471) installed at an incline between the inner turntable (42) and the support (43), the two ends of the telescopic rod (471) being movably hinged to the inner turntable (42) and the support (43) respectively; and a support spring (472) for pushing the telescopic rod (471) to extend outward.

2. The strip steel surface residual water blowing device according to claim 1, characterized in that: It also includes a control mechanism (5), which includes: an outer rotating ring (51) rotatably mounted on the outside of the inner rotating disk (42), the inner rotating disk (42) being provided with a damping element, the inner rotating disk (42) having a notch (422) on its ring side, a protruding rod (511) fixedly connected to the inner wall of the outer rotating ring (51) and inserted into the notch (422), and a positioning spring (512) installed between the protruding rod (511) and the notch (422); and a guide rail (52) fixedly connected to the crossbeam (21). Located on the outside of the outer rotating ring; a slider (53) slidably mounted in the guide rail (52), the slider (53) being provided with a return spring; a first inclined plate (54) fixed to the outer rotating ring (51) for squeezing the slider (53) to move closer to the air pipe (32), and the slider (53) squeezing the telescopic rod (471) to deflect after moving, the first inclined plate (54) being a unidirectional rotating structure; a second ramp (55) fixed to the outer rotating ring (51) for squeezing the telescopic rod (471) to rotate.

3. The strip steel surface residual water blowing device according to claim 2, characterized in that: The slider (53) has a through groove, the first inclined plate (54) passes through the groove, the end of the slider (53) is located between the first inclined plate (54) and the second inclined plate (55), and the telescopic rod (471) is offset from the second inclined plate (55).

4. The strip steel surface residual water blowing device according to claim 3, characterized in that: The control mechanism (5) further includes: a diversion pipe (56) connected to the air guide pipe (32); and a valve (57) for controlling the opening and closing of the diversion pipe (56).

5. The strip steel surface residual water blowing device according to claim 4, characterized in that: The control mechanism (5) also includes two sets of fan blades (58) fixed on the outer rotating ring (51), and the diversion pipe (56) is provided with two outlets, and the two outlets correspond to the two sets of fan blades (58) respectively.

6. The strip steel surface residual water blowing device according to claim 5, characterized in that: The outer rotating ring (51) has two positioning holes (513), and the crossbeam (21) is provided with a positioning block (211) that is inserted into the positioning hole (513).

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