Device for automatically cleaning residues at liquid injection port of lithium battery

Abstract

The utility model relates to a device for automatically cleaning residues at a liquid injection port of a lithium battery, which comprises a wiping mechanism for wiping the liquid injection port of a battery cell, a conveying line for conveying the battery cell, a spraying mechanism for spraying cleaning liquid to the liquid injection port of the battery cell, and a drying mechanism for blowing air to the surface of the battery cell, the spraying mechanism, the wiping mechanism and the drying mechanism are all arranged on one side of the conveying line and are sequentially arranged in the conveying direction of the conveying line. According to the utility model, automatic spraying, wiping and cleaning work of the battery cell can be realized, the steps are simple, the efficiency is high, the investment of manpower and material resources can be effectively reduced, and the cleaning tidiness of a liquid injection port is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a device for automatically cleaning residues from a lithium battery injection port. Background Art

[0002] After the battery is filled with electrolyte, residual electrolyte crystals adhere to the injection port and surrounding areas. These electrolyte crystals must be removed to facilitate subsequent welding of the injection port sealing nail cover. The wiping device is used to wipe away the electrolyte crystals in and around the injection port to achieve a clean effect.

[0003] For example, the patent with publication number CN113245261A discloses a lithium battery filling port wiping device, including a filling port wiping mechanism and a battery transfer mechanism; the filling port wiping mechanism includes a bracket, a mounting plate, a first drive mechanism, and a filling port wiping device, the mounting plate is mounted on the bracket, the filling port wiping device is mounted on the mounting plate and is driven by the first drive mechanism to move up and down in the vertical direction; the battery transfer mechanism is used to transfer the lithium battery to the filling port wiping device and transfer the wiped lithium battery out. However, the lithium battery filling port wiping device only automatically wipes the lithium battery filling port through the filling port wiping mechanism and the battery transfer mechanism, and the drying work after wiping still needs to be done manually. In addition, the filling port wiping device also needs to move back and forth to dip in the cleaning liquid, which reduces the working efficiency. Utility Model Content

[0004] Based on this, it is necessary to realize automatic wiping of the lithium battery filling port by the current lithium battery filling port wiping device only through the filling port wiping mechanism and the battery transplanting mechanism. The drying work after wiping still needs to be performed manually, and the filling port wiping device also needs to move back and forth to dip the cleaning liquid, which has low work efficiency.

[0005] The utility model proposes a device for automatically cleaning residues from the liquid injection port of a lithium battery, which includes a wiping mechanism for wiping the liquid injection port of a battery cell, a conveying line for conveying the battery cell, a spraying mechanism for spraying cleaning liquid onto the liquid injection port of the battery cell, and a drying mechanism for blowing air onto the surface of the battery cell. The spraying mechanism, the wiping mechanism, and the drying mechanism are all arranged on one side of the conveying line and are arranged in sequence along the conveying direction of the conveying line.

[0006] The utility model discloses that the battery cell that needs to be cleaned is continuously conveyed by arranging a conveyor line, after spraying the cleaning liquid on the liquid injection port position of the battery cell by the spraying mechanism, the wiping mechanism wipes the liquid injection port position of the battery cell to remove the residue, and finally blows air to the wiped surface of the battery cell by the drying mechanism to dry the surface of the battery cell. The whole process does not require human intervention, and can realize the automatic spraying and wiping cleaning work of the battery cell. The steps are simple and the efficiency is high, which can effectively reduce the investment of manpower and material resources and improve the cleanliness of the cleaning of the liquid injection port.

[0007] As a further improvement of the above-mentioned scheme of the utility model, a spraying station, a wiping station and a drying station are sequentially arranged along the conveying direction of the conveyor line, and the spraying mechanism, the wiping mechanism and the drying mechanism are respectively arranged at the spraying station, the wiping station and the drying station; the spraying station, the wiping station and the drying station are all provided with a blocking mechanism for blocking the movement of the lithium battery, a sensor for sensing the lithium battery and a photographing and positioning mechanism for photographing and positioning the lithium battery.

[0008] As a further improvement of the above-mentioned scheme of the utility model, the blocking mechanism includes a blocking mounting frame, a blocking cylinder and a blocking block. The blocking mounting frame is installed on the conveyor line, the blocking cylinder is installed on the blocking mounting frame and is located above the conveyor line, and the blocking block is installed at the telescopic end of the blocking cylinder.

[0009] As a further improvement of the above solution of the utility model, the photographing positioning mechanism includes a photographing mounting frame, a light source and a camera. The photographing mounting frame is installed on the ground, and the light source and the camera are both located above the conveyor line and installed on the photographing mounting frame.

[0010] As a further improvement of the above solution of the utility model, the device for automatically cleaning the residue at the lithium battery filling port also includes a sealing cover, which is arranged on the conveyor line, and the spraying mechanism, wiping mechanism, and drying mechanism are all arranged in the sealing cover.

[0011] As a further improvement of the above-mentioned scheme of the utility model, the spraying mechanism includes a spraying base, a spraying robot, a spraying connecting seat, a spray valve and a liquid storage tank storing alcohol; the spraying base is installed on the ground, and the spraying robot is installed on the spraying base; the spraying connecting seat is fixed at the end of the spraying robot, the spray valve is installed on the spray connecting seat and the spray valve is connected to the liquid storage tank through a pipe.

[0012] As a further improvement of the above-mentioned scheme of the utility model, the wiping mechanism includes a wiping base, a wiping robot, a wiping connecting seat, a rotating motor and several rotating shafts. The spraying base is installed on the ground, and the spraying robot is installed on the spraying base; the wiping connecting seat is fixed at the end of the wiping robot, the rotating motor is installed on the wiping connecting seat and its output end is connected to a driving wheel; several rotating shafts are installed vertically on the wiping connecting seat and a brush head is installed at the bottom of each rotating shaft, and driven wheels are installed on the top of several rotating shafts, and the driving wheel and several driven wheels are driven by belts.

[0013] As a further improvement to the above-mentioned solution of the present invention, the device for automatically cleaning residue from the lithium battery filling port also includes a cleaning tank installed on one side of the conveyor line and storing cleaning fluid. By providing the cleaning tank, after completing a wiping operation, the wiping robot drives the wiping connector to move to the cleaning tank position, immersing the two brush heads in the cleaning fluid while keeping the brush heads in a rotating state to clean the brush heads and avoid affecting the next wiping operation.

[0014] As a further improvement of the above-mentioned scheme of the utility model, the drying mechanism includes a drying base, a drying robot, a drying connecting seat, an air blowing nozzle and an air source. The drying base is installed on the ground, and the drying robot is installed on the drying base; the drying connecting seat is fixed at the end of the drying robot; the air blowing nozzle is installed on the drying connecting seat and connected to the air source through a pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The utility model discloses that the battery cell that needs to be cleaned is continuously conveyed by arranging a conveyor line, after spraying the cleaning liquid on the liquid injection port position of the battery cell by the spraying mechanism, the wiping mechanism wipes the liquid injection port position of the battery cell to remove the residue, and finally blows air to the wiped surface of the battery cell by the drying mechanism to dry the surface of the battery cell. The whole process does not require human intervention, and can realize the automatic spraying and wiping cleaning work of the battery cell. The steps are simple and the efficiency is high, which can effectively reduce the investment of manpower and material resources and improve the cleanliness of the cleaning of the liquid injection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a device for automatically cleaning residues from a lithium battery filling port, as proposed in an embodiment of the present utility model;

[0018] Figure 2 This is a partial structural diagram of a device for automatically cleaning residue from a lithium battery filling port, as proposed in an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the results of the photographing and positioning mechanism in a device for automatically cleaning residues from a lithium battery filling port, as proposed in an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the spraying mechanism in a device for automatically cleaning residues from a lithium battery filling port, as proposed in an embodiment of the utility model;

[0021] Figure 5 This is a partial structural diagram of a wiping mechanism in a device for automatically cleaning residue from a lithium battery filling port, as proposed in an embodiment of the utility model;

[0022] Figure 6This is a structural schematic diagram of a drying mechanism in a device for automatically cleaning residues from a lithium battery filling port, as proposed in an embodiment of the utility model.

[0023] Figure numerals: 1. Conveyor line; 2. Blocking mounting frame; 3. Blocking cylinder; 4. Blocking block; 5. Photographing mounting frame; 6. Light source; 7. Camera; 8. Sealing cover; 9. Spraying base; 10. Spraying robot; 11. Spraying connecting seat; 12. Spray valve; 13. Wiping base; 14. Wiping robot; 15. Wiping connecting seat; 16. Rotating motor; 17. Rotating shaft; 18. Driving wheel; 19. Driven wheel; 20. Brush head; 21. Belt; 22. Cleaning tank; 23. Drying base; 24. Drying robot; 25. Drying connecting seat; 26. Air blowing nozzle; 27. Battery cell. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1 、 Figure 2 This embodiment provides a device for automatically cleaning residues from the lithium battery filling port, including a conveyor line 1, a spraying mechanism, a wiping mechanism, and a drying mechanism. It may also include a sealing cover 8, three blocking mechanisms, three sensors, three camera positioning mechanisms, and a cleaning tank 22.

[0026] The conveyor line 1 is used to convey the battery cells 27 to be cleaned. In this embodiment, the conveyor line 1 includes multiple side-by-side motor-driven belt conveyor assemblies in the prior art. In this embodiment, each belt conveyor assembly simultaneously and synchronously conveys two battery cells 27 side by side. Both sides of the conveying surface of each belt conveyor assembly are provided with limit frames for limiting the battery cells 27 to prevent the battery cells 27 from tipping over or tilting during conveyance.

[0027] The sealing cover 8 is provided on the conveyor line 1. The conveyor line 1 is located in a section of the sealing cover 8 and is sequentially provided with a spraying station, a wiping station, and a drying station along the conveying direction of the conveyor line 1. The spraying mechanism, the wiping mechanism, and the drying mechanism are all provided in the sealing cover 8 and are respectively provided at the spraying station, the wiping station, and the drying station. The spraying station, the wiping station, and the drying station are each provided with a blocking mechanism, a sensor, and a camera positioning mechanism. When the sensor at the spraying station detects the incoming battery cells 27, the blocking mechanism at the spraying station blocks the battery cells 27 on each belt conveyor assembly. The camera positioning mechanism at the spraying station takes a photo of the battery cells 27 at the spraying station to locate the injection port position of each battery cell 27. The spraying mechanism sprays alcohol at the injection port position of multiple battery cells 27 at the spraying station based on the positioning information of the camera positioning mechanism. After spraying is completed, the blocking mechanism at the spraying station releases the battery cells 27. When the sensor at the wiping station detects the incoming battery cells 27, the blocking mechanism at the wiping station blocks the battery cells 27 on each belt conveyor assembly. The camera and positioning mechanism at the wiping station takes a photo of the battery cells 27 at the wiping station to locate the injection port position of each battery cell 27. The wiping mechanism wipes the injection ports of the multiple battery cells 27 at the wiping station based on the positioning information from the camera and positioning mechanism to remove residue. After wiping is completed, the blocking mechanism at the wiping station releases the battery cells 27. When the sensor at the drying station detects the incoming battery cells 27, the blocking mechanism at the drying station blocks the battery cells 27 on each belt conveyor assembly. The camera and positioning mechanism at the drying station takes a photo of the battery cells 27 at the drying station to locate the injection port position of each battery cell 27. The drying mechanism blows air onto the surfaces of the multiple battery cells 27 at the drying station based on the positioning information from the camera and positioning mechanism to dry the surfaces of the battery cells 27. After drying is completed, the blocking mechanism at the drying station releases the battery cells 27.

[0028] Below, the spraying mechanism, wiping mechanism, drying mechanism, blocking mechanism, and photographing and positioning mechanism are introduced respectively.

[0029] The blocking mechanism of this embodiment includes a blocking mounting frame 2, a plurality of blocking cylinders 3 and a plurality of blocking blocks 4. The blocking mounting frame 2 is installed on the conveyor line 1, and the plurality of blocking cylinders 3 are all installed on the blocking mounting frame 2 and located above the conveyor line 1, and the plurality of blocking cylinders 3 are respectively arranged in a one-to-one correspondence with the plurality of belt conveyor assemblies, and the plurality of blocking blocks 4 are respectively installed at the telescopic ends of the plurality of blocking cylinders 3. The blocking cylinders 3 are telescopic to drive the blocking blocks 4 to rise and fall, thereby blocking and releasing the battery cells 27 on the corresponding belt conveyor assemblies. In this embodiment, a sensor (not shown) is also installed on the blocking mounting frame 2. When the sensor senses that the battery cell 27 has reached its position, it triggers the plurality of blocking cylinders 3 to extend, and the plurality of blocking blocks 4 to block the plurality of battery cells 27.

[0030] Combine Figure 3The photographing positioning mechanism of this embodiment includes a photographing mounting frame 5, a light source 6 and a camera 7. The photographing mounting frame 5 is installed on the ground. The light source 6 and the camera 7 are both located above the conveyor line 1 and installed on the photographing mounting frame 5.

[0031] Combine Figure 4 In this embodiment, the spraying mechanism includes a spraying base 9, a spraying robot 10, a spraying connection seat 11, two spray valves 12 and a liquid storage tank for storing alcohol (not shown). The spraying base 9 is installed on the ground, and the spraying robot 10 is installed on the spraying base 9. The spraying connection seat 11 is fixed to the end of the spraying robot 10, and the two spray valves 12 are installed on the spraying connection seat 11 and the two spray valves 12 are connected to the liquid storage tank through pipes. The spraying robot 10 drives the two spray valves 12 to move above the conveyor line 1 in a direction perpendicular to the conveying direction of the conveyor line 1 to spray one by one to the multiple battery cells 27 conveyed side by side on the conveyor line 1. During spraying, the spray valve 12 is started to spray directly to the liquid injection port.

[0032] Combine Figure 5 In this embodiment, the wiping mechanism includes a wiping base 13, a wiping robot 14, a wiping connecting seat 15, a rotating motor 16 and two rotating shafts 17. The spraying base 9 is installed on the ground, and the spraying robot 10 is installed on the spraying base 9. The wiping connecting seat 15 is fixed to the end of the wiping robot 14, and the rotating motor 16 is installed on the wiping connecting seat 15 and its output end is connected to the driving wheel 18. The two rotating shafts 17 are vertically rotatably installed on the wiping connecting seat 15, and a brush head 20 is installed at the bottom of each rotating shaft 17, and a driven wheel 19 is installed on the top of the two rotating shafts 17. The driving wheel 18 and the two driven wheels 19 are driven by a belt 21. When the wiping mechanism wipes the two battery cells 27 on a certain belt conveyor assembly, the wiping robot 14 drives the wiping connecting seat 15 to move to the corresponding position, and the two brush heads 20 correspond to the injection ports of the two battery cells 27 respectively. The rotating motor 16 drives the driving wheel 18 to rotate, and the driving wheel 18 drives the two driven wheels 19 to rotate through the belt 21, thereby driving the two rotating shafts 17 to rotate, and the rotating shaft 17 drives the brush head 20 to rotate to wipe the injection ports of the battery cells 27.

[0033] Furthermore, in order to facilitate the cleaning of the brush heads 20, a cleaning tank 22 for storing cleaning liquid is provided on one side of the conveyor line 1. After completing a wiping work, the wiping robot 14 drives the wiping connecting seat 15 to move to the cleaning tank 22 position so that the two brush heads 20 are immersed in the cleaning liquid, while keeping the brush heads 20 in a rotating state to clean the brush heads 20 to avoid affecting the next wiping work.

[0034] Combine Figure 6In this embodiment, the drying mechanism includes a drying base 23, a drying robot 24, a drying connection base 25, two air blowing nozzles 26, and an air source (not shown). The drying base 23 is mounted on the ground, and the drying robot 24 is mounted on the drying base 23. The drying connection base 25 is fixed to the end of the drying robot. The two air blowing nozzles 26 are both mounted on the drying connection base 25 and connected to the air source via pipes. During drying, the two air blowing nozzles 26 are activated to blow air toward the battery cells 27.

[0035] Next, the working principle of this embodiment is described:

[0036] The conveyor line 1 conveys the battery cells 27 that have passed the liquid injection process. When the sensor at the spraying station senses that the battery cells 27 have arrived at the spraying station, the spraying robot 10 is triggered. The spraying robot 10 triggers the multiple blocking cylinders 3 of the spraying station to start extending, and the multiple blocking blocks 4 block the battery cells 27 so that the battery cells 27 stop moving. At the same time, the camera 7 at the spraying station is triggered to take pictures and locate the liquid injection ports of the multiple battery cells 27 at the spraying station. The spraying robot 10 drives the spray connection seat 11 to correspond to the multiple belt conveyor components in turn and adjusts the position of the spray valve 12 according to the positioning information of the camera 7, so that the two spray valves 12 respectively correspond to the liquid injection ports of the two battery cells 27 on the belt conveyor component, and then the two spray valves 12 are started to spray alcohol on the liquid injection ports of the two battery cells 27 respectively; after the spraying is completed, the blocking cylinder 3 contracts, the blocking block 4 moves up, and the battery cells 27 continue to move downstream;

[0037] When the sensor at the wiping station senses that the battery cell 27 has arrived at the wiping station, it sends a signal to trigger the wiping robot 14. The wiping robot 14 triggers the multiple blocking cylinders 3 of the wiping station to start extending, and the multiple blocking blocks 4 block the battery cell 27 so that the battery cell 27 stops moving. At the same time, the camera 7 at the wiping station is triggered to take pictures and locate the multiple battery cells 27 at the wiping station. The wiping robot 14 drives the wiping connecting seat 15 to correspond to the multiple belt conveyor components in turn and adjusts the positions of the two brush heads 20 according to the positioning information of the camera 7, so that the two brush heads 20 respectively correspond to the liquid injection ports of the two battery cells 27 on the belt conveyor component. The drive motor starts to drive the two brush heads 20 to rotate and wipe the liquid injection port positions of the two battery cells 27 to remove residues. After the wiping is completed, the blocking cylinder 3 contracts, the blocking block 4 moves up, and the battery cell 27 continues to move downstream.

[0038] When the sensor at the drying station senses that the battery cell 27 has arrived at the drying station, it sends a signal, triggering the multiple blocking cylinders 3 at the drying station to start extending, and the multiple blocking blocks 4 block the battery cell 27 so that the battery cell 27 stops moving. At the same time, the camera 7 at the drying station is triggered to take pictures and locate the multiple battery cells 27 in the drying station. The drying robot 24 drives the drying connection seat 25 to correspond to the multiple belt conveyor components in turn and adjusts the positions of the two blowing nozzles 26 according to the positioning information of the camera 7, so that the two blowing nozzles 26 respectively correspond to the liquid injection port positions of the two battery cells 27 on the belt conveyor component. The blowing nozzle 26 starts to blow air toward the surface of the battery cell 27, so that the surface of the battery cell 27 is blown dry; after the drying is completed, the blocking cylinder 3 contracts, the blocking block 4 moves up, and the battery cell 27 continues to move downstream and flows out of the sealing cover 8.

[0039] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A device for automatically cleaning residues from a lithium battery injection port, comprising a wiping mechanism for wiping the battery cell injection port, characterized in that: It also includes a conveying line (1) for conveying battery cells, a spraying mechanism for spraying cleaning liquid onto the liquid injection port of the battery cells, and a drying mechanism for blowing air onto the surface of the battery cells. The spraying mechanism, the wiping mechanism, and the drying mechanism are all arranged on one side of the conveying line (1) and are arranged in sequence along the conveying direction of the conveying line (1).

2. The device for automatically cleaning residues from the lithium battery filling port according to claim 1, characterized in that: A spraying station, a wiping station, and a drying station are sequentially arranged along the conveying direction of the conveying line (1); the spraying mechanism, the wiping mechanism, and the drying mechanism are respectively arranged at the spraying station, the wiping station, and the drying station; the spraying station, the wiping station, and the drying station are all provided with a blocking mechanism for blocking the movement of the battery cell, a sensor for sensing the battery cell, and a photographic positioning mechanism for photographing and positioning the battery cell.

3. The device for automatically cleaning residues from the lithium battery filling port according to claim 2, characterized in that: The blocking mechanism comprises a blocking mounting frame (2), a blocking cylinder (3) and a blocking block (4); the blocking mounting frame (2) is mounted on the conveying line (1); the blocking cylinder (3) is mounted on the blocking mounting frame (2) and is located above the conveying line (1); and the blocking block (4) is mounted on the telescopic end of the blocking cylinder (3).

4. The device for automatically cleaning residues from the lithium battery filling port according to claim 2, characterized in that: The photographing positioning mechanism comprises a photographing mounting frame (5), a light source (6) and a camera (7); the photographing mounting frame (5) is mounted on the ground; the light source (6) and the camera (7) are both located above the conveying line (1) and mounted on the photographing mounting frame (5).

5. The device for automatically cleaning residues from the lithium battery filling port according to claim 1, characterized in that: The device for automatically cleaning the residue at the lithium battery injection port also includes a sealing cover (8), which is arranged on the conveying line (1), and the spraying mechanism, the wiping mechanism, and the drying mechanism are all arranged in the sealing cover (8).

6. The device for automatically cleaning residues from the lithium battery filling port according to claim 1, characterized in that: The spraying mechanism comprises a spraying base (9), a spraying robot (10), a spraying connection seat (11), a spray valve (12) and a liquid storage tank storing alcohol; the spraying base (9) is installed on the ground, and the spraying robot (10) is installed on the spraying base (9); the spraying connection seat (11) is fixed to the end of the spraying robot (10), and the spray valve (12) is installed on the spraying connection seat (11) and the spray valve (12) is connected to the liquid storage tank through a pipeline.

7. The device for automatically cleaning residues from the lithium battery filling port according to claim 1, characterized in that: The wiping mechanism comprises a wiping base (13), a wiping robot (14), a wiping connecting base (15), a rotating motor (16) and a plurality of rotating shafts (17). The spraying base (9) is installed on the ground, and the spraying robot (10) is installed on the spraying base (9); the wiping connecting base (15) is fixed to the end of the wiping robot (14), the rotating motor (16) is installed on the wiping connecting base (15) and its output end is connected to a driving wheel (18); a plurality of rotating shafts (17) are vertically rotatably installed on the wiping connecting base (15), and a brush head (20) is installed at the bottom of each rotating shaft (17), and a driven wheel (19) is installed at the top of the plurality of rotating shafts (17). The driving wheel (18) and the plurality of driven wheels (19) are driven by a belt (21).

8. The device for automatically cleaning residues from the lithium battery filling port according to claim 1, characterized in that: The device for automatically cleaning residues from the lithium battery injection port also includes a cleaning tank (22), which is installed on one side of the conveying line (1) and stores cleaning liquid.

9. The device for automatically cleaning residues from the lithium battery filling port according to claim 1, characterized in that: The drying mechanism comprises a drying base (23), a drying robot (24), a drying connection seat (25), an air blowing nozzle (26) and an air source, wherein the drying base (23) is installed on the ground, and the drying robot (24) is installed on the drying base (23); the drying connection seat (25) is fixed to the end of the drying robot (24); and the air blowing nozzle (26) is installed on the drying connection seat (25) and connected to the air source through a pipeline.

Images