Automatic spraying device for anti-corrosion coating of wind turbine foundation

Abstract

This invention relates to the field of paint spraying equipment technology, specifically disclosing an automatic spraying device for anti-corrosion coating of a fan foundation. The device includes a base, a spraying box, a clamping mechanism, a spraying mechanism, and a mixing mechanism. The spraying mechanism includes a movable plate, a first drive assembly, a second drive assembly, and a third drive assembly mounted on the movable plate. The first drive assembly is connected to a rotatable brush, the second drive assembly is connected to a pump body, and a nozzle is connected to the pump body's outlet. The third drive assembly is connected to a drying module. The mixing mechanism includes a paint tank, a stirring rod, a scraper, and a drive component. The stirring rod is disposed in the paint tank, and a scraper blade is fixed to the bottom end of the scraper. A screen is provided at the bottom outlet of the paint tank, and the scraper blade is in close contact with the upper surface of the screen. A guide plate is fixed to the bottom of the inner wall of the spraying box, and a pull-out recovery plate is provided at the lower end of the guide plate. This allows the spraying device to uniformly deposit paint on the surface of the object, ensuring both spraying quality and efficiency.

Description

Technical Field

[0001] This invention relates to the field of coating spraying equipment technology, specifically to an automatic spraying device for anti-corrosion coating of wind turbine foundations. Background Technology

[0002] As a widely used fluid machinery in industrial production and daily life, the core function of a fan is to convert mechanical energy into gas energy to achieve gas transportation, pressurization, or depressurization. Based on different working principles and structural characteristics, fans can be divided into various types, such as centrifugal, axial-flow, mixed-flow, and Roots-type fans. These types of fans differ in their fluid dynamic characteristics, applicable scenarios, and performance parameters. Among these, the automatic anti-corrosion coating device for wind turbine foundations is mainly used in the anti-corrosion processing steps during the production of wind turbine foundation structures.

[0003] Currently, the aforementioned spraying operations are mostly carried out manually using handheld sprayers. However, this method suffers from low efficiency and high manpower requirements. Furthermore, the mist-like paint released during spraying can be inhaled by operators, adversely affecting their health. To address these shortcomings, Chinese Patent CN103861764A discloses an automatic spraying device. In this device, the first, second, and third sensors are all infrared sensors. Each infrared sensor includes an infrared probe and a protective sleeve surrounding the probe. A mounting base is provided around the outer periphery of the protective sleeve, and a protective cover is provided on the mounting base. The mounting base and the protective cover together form a closed space, within which the infrared probe is encapsulated. A first through-hole is provided on the end face of the protective cover, corresponding to the infrared probe. A second through-hole is provided on the side wall of the protective cover for connecting a high-pressure air source. This infrared sensor can effectively prevent paint or adhesive from adhering to the surface of the infrared probe during the spraying process, ensuring the cleanliness of the probe; at the same time, through the first through hole, the infrared probe can sensitively sense the part to be sprayed, thereby accurately sending an opening and closing signal to ensure the normal operation of the automatic spraying device.

[0004] However, the aforementioned automatic spraying device only has the basic function of directionally spraying paint onto the surface of a specific object, and its structure lacks a crucial paint spreading mechanism. Therefore, after the spraying operation is completed, the paint deposited on the object's surface is prone to uneven thickness and distribution, leading to undesirable visual effects such as mottled spots and runs on the coating surface. This severely affects the final adhesion of the paint, the aesthetics of the workpiece, and its overall performance.

[0005] Therefore, a more reasonable technical solution is needed to optimize and improve the structure of the spraying device, so that the spraying device can uniformly deposit the coating on the surface of the object, ensuring the spraying quality and efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic spraying device for the anti-corrosion layer of a wind turbine foundation, which enables the coating to be uniformly deposited on the surface of the object, ensuring the quality and efficiency of the spraying.

[0007] This invention is achieved through the following technical solution:

[0008] An automatic spraying device for anti-corrosion coating of wind turbine foundation includes a base, a spraying box mounted on the base, a clamping mechanism for holding wind turbine components, a spraying mechanism for spraying paint, and a mixing mechanism for supplying paint. The spraying mechanism includes a movable plate, a first drive assembly, a second drive assembly, and a third drive assembly mounted on the movable plate. The first drive assembly is connected to a rotatable brush, the second drive assembly is connected to a pump body, the outlet of the pump body is connected to a nozzle, and the third drive assembly is connected to a drying module.

[0009] The mixing mechanism includes a paint tank, a stirring rod, a scraper, and a driving component for driving the stirring rod and the scraper to rotate. The stirring rod is disposed in the paint tank, and a scraper blade is fixed to the bottom end of the scraper. A screen is provided at the bottom outlet of the paint tank, and the scraper blade is in close contact with the upper surface of the screen.

[0010] A guide plate is fixed to the bottom of the inner wall of the spray box, and a pull-out recycling plate is provided at the lower end of the guide plate for collecting excess paint.

[0011] In one possible design, the clamping mechanism includes a first hollow box and a second hollow box arranged vertically, each containing a synchronous clamping assembly. The synchronous clamping assembly comprises two symmetrically arranged sets, each set including a side plate, a shaft, a threaded rod, and a first helical gear. The side plate is fixed within the box body, and the shaft is rotatably connected to the side plate. One end of the shaft is provided with the threaded rod, and the other end with the first helical gear. The two first helical gears are arranged opposite each other. A sliding seat is threaded onto the threaded rod, and an L-shaped bracket is fixed to the sliding seat. A clamping rod is connected to the top of the L-shaped bracket.

[0012] The clamping mechanism also includes an electric motor, the output end of which is provided with a second inclined gear that meshes with the first inclined gear. The second inclined gear meshes with two first inclined gears simultaneously, so that the clamping rod is relatively close to or far away from each other.

[0013] In one possible design, the L-shaped supports inside the first hollow box are at different heights than the L-shaped supports inside the second hollow box, and the top surfaces of all the L-shaped supports are on the same horizontal plane.

[0014] In one possible design, the application brush is fixed to the bottom of a second turntable, which is detachably mounted to the bottom of a first turntable via a threaded shaft and a nut, and the first turntable is fixed to the movable end of a first motor.

[0015] In one possible design, the rear end face of the spray box is provided with an exhaust fan, and the door of the spray box is provided with an inlet fan. Both the exhaust fan outlet and the inlet fan inlet are fixed with internal threaded rings. A circular ring is threaded onto the internal threaded ring, and a honeycomb activated carbon disc and a filter screen are placed sequentially inside the circular ring.

[0016] In one possible design, a control panel is also included, which is equipped with a wireless signal transmitting module. The first drive component, the second drive component, and the third drive component are each equipped with a first wireless signal receiving module, and the first motor, the pump body, and the drying module are each equipped with a second wireless signal receiving module.

[0017] In one possible design, the movable plate is slidably connected to the sliding holes on both sides of the top box via a load-bearing rod. The top box is fixed to the top opening of the spray box, and the top of the top box has an inlet hole for the conveying pipe to pass through.

[0018] In one possible design, the guide plate has an inclined structure with an insertion hole at its bottom end, one end of the recycling plate is inserted into the insertion hole, and a recycling groove is formed at the top of the recycling plate.

[0019] In one possible design, the spray box is also equipped with a placement platform, which is fixed to the upper end of the inclined surface of the guide plate by a support rod and is used to support the fan assembly.

[0020] In one possible design, the drive unit includes a second motor fixed to the top of the paint tank, with a rotating rod connected to the movable end of the second motor. The stirring rod and scraper are fixed to both sides of the rotating rod, and a valve is provided on the bottom discharge pipe of the paint tank. The valve is connected to the inlet of the pump body through a conveying pipe.

[0021] The advantages of this invention over the prior art are as follows:

[0022] The above technical solution integrates a rotatable brush with a spray head and a drying module to form an automated "spraying-spreading-drying" process. This effectively solves the problems of uneven coating thickness and distribution caused by the lack of a spreading structure in existing technologies, improving coating uniformity, adhesion, and surface aesthetics. The mixing mechanism integrates a stirring rod and a scraper with blades, ensuring uniform mixing of the coating and actively clearing blockages at the screen, guaranteeing continuous and stable coating supply and preventing production interruptions due to discharge blockages. The guide plate and pull-out recovery plate enable automatic collection and recycling of excess coating, reducing coating waste and saving production costs. This device automates the entire process of clamping, spraying, spreading, drying, and recycling, reducing manual intervention, lowering the health risk of operators inhaling mist coating, and improving production efficiency and operational safety. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the automatic spraying device for anti-corrosion coating of wind turbine foundation provided by the present invention in one embodiment;

[0025] Figure 2 This is a three-dimensional structural schematic diagram of an automatic spraying device for anti-corrosion coating of wind turbine foundations provided by the present invention in one embodiment, wherein... Figure 2 and Figure 1 The display perspectives are different;

[0026] Figure 3 This is a front view schematic diagram of the automatic spraying device for anti-corrosion coating of wind turbine foundation provided by the present invention in one embodiment;

[0027] Figure 4 This is a front cross-sectional view of one embodiment of the automatic spraying device for anti-corrosion coating of wind turbine foundation provided by the present invention;

[0028] Figure 5 This is a rear view structural schematic diagram of the automatic spraying device for anti-corrosion coating of wind turbine foundation provided by the present invention in one embodiment;

[0029] Figure 6 This is a left-view structural schematic diagram of the automatic spraying device for anti-corrosion coating of wind turbine foundation provided by the present invention in one embodiment;

[0030] Figure 7 This is a left-side cross-sectional view of one embodiment of the automatic spraying device for anti-corrosion coating of wind turbine foundation provided by the present invention;

[0031] Figure 8 This is a front cross-sectional view of the clamping mechanism in one embodiment of the automatic spraying device for anti-corrosion coating of wind turbine foundation provided by the present invention;

[0032] Figure 9 This is a front cross-sectional view of the spraying mechanism in one embodiment of the automatic spraying device for anti-corrosion coating of wind turbine foundation provided by the present invention;

[0033] Figure 10 This is a left-side cross-sectional view of the mixing mechanism in one embodiment of the automatic spraying device for anti-corrosion coating of wind turbine foundation provided by the present invention.

[0034] The attached diagram shows the markings and corresponding component names: 1-Base, 21-Spraying box, 211-Box door, 22-Exhaust fan, 23-Intake fan, 241-Internal threaded ring, 242-Ring, 25-Honeycomb activated carbon disc, 26-Filter screen, 27-Placement platform, 28-Support rod, 29-Slide rail, 3-Clamping mechanism, 31-First hollow box, 32-Second hollow box, 33-Synchronous clamping assembly, 331-Side plate, 332-Shaft, 333-Threaded rod, 334-First helical gear, 335-Sliding seat, 336-L-shaped bracket, 337-Clamping rod, 34-Motor, 341-Second helical gear, 4-Spraying mechanism, 41-Moving plate, 42-First drive assembly, 43-Second drive assembly, 44 - Third drive assembly, 45- Application brush, 461- First turntable, 462- Second turntable, 463- Threaded shaft, 464- Nut, 465- First motor, 47- Pump body, 48- Nozzle, 49- Drying module, 5- Mixing mechanism, 51- Paint tank, 511- Bottom discharge pipe, 512- Valve, 513- Screen, 514- Top cover, 52- Stirring rod, 53- Scraper, 54- Scraper blade, 551- Second motor, 552- Rotating rod, 56- Supporting rod, 57- Top box, 571- Inlet hole, 58- Conveying pipe, 59- Limiting rod, 61- Guide plate, 611- Insertion hole, 62- Recycling plate, 63- Recycling tank, 71- Control panel, 72- Wireless signal transmitting module, 8- Fan assembly. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that while the description of these embodiments is intended to aid in understanding the invention, it does not constitute a limitation thereof. The specific structural and functional details disclosed herein are only for describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0036] According to a first aspect of this disclosure, an automatic spraying device for anti-corrosion coating of wind turbine foundations is provided. Wherein, Figures 1 to 10 Specific embodiments thereof are shown.

[0037] See Figures 1 to 10 As shown, the automatic anti-corrosion coating device for wind turbine foundations includes a base 1, a spray box 21 mounted on the base 1, a clamping mechanism 3 for holding the wind turbine assembly 8, a spraying mechanism 4 for spraying coating material, and a mixing mechanism 5 for supplying coating material. The spraying mechanism 4 includes a movable plate 41, a first drive assembly 42, a second drive assembly 43, and a third drive assembly 44 mounted on the movable plate 41. The first drive assembly 42 is connected to a rotatable brush 45, the second drive assembly 43 is connected to a pump body 47, and the outlet of the pump body 47 is connected to a spray nozzle. 48. The third drive assembly 44 is connected to the drying module 49; the mixing mechanism 5 includes a paint tank 51, a stirring rod 52, a scraper 53, and a drive component for driving the stirring rod 52 and the scraper 53 to rotate. The stirring rod 52 is disposed in the paint tank 51. A scraper blade 54 is fixed at the bottom end of the scraper 53. A screen 513 is provided at the bottom outlet of the paint tank 51. The scraper blade 54 is in close contact with the upper surface of the screen 513. A guide plate 61 is fixed at the bottom end of the inner wall of the spray box 21. A pull-out recovery plate 62 is provided at the lower end of the guide plate 61 for collecting excess paint.

[0038] When the device is in operation, the clamping mechanism 3 first fixes the fan assembly 8 to be treated in a predetermined position inside the spray box 21. Subsequently, the spraying mechanism 4 and the mixing mechanism 5 work together.

[0039] In the mixing mechanism 5, the driving component drives the stirring rod 52 and the scraper 53 to rotate inside the paint tank 51. The stirring rod 52 continuously stirs the anti-corrosion paint to prevent solid particles in the paint from settling or separating, ensuring that the paint components are uniform. At the same time, the scraper blade 54 at the bottom of the scraper 53 slides against the upper surface of the screen 513 at the bottom outlet of the paint tank 51, actively removing clumps or impurities accumulated on the screen 513, avoiding clogging of the screen 513, and ensuring a smooth supply of paint.

[0040] During the spraying operation, the second drive assembly 43 moves the pump body 47 and the nozzle 48 to above or in front of the fan assembly 8. The pump body 47 draws uniformly mixed paint from the paint tank 51 and sprays it evenly onto the surface of the fan assembly 8 through the nozzle 48. Next, the first drive assembly 42 moves the rotatable brush 45 to the area where the paint has been sprayed. The brush 45 contacts the paint layer while rotating, evenly spreading and smoothing the paint deposited on the surface, eliminating uneven thickness, sagging, or patchy phenomena that may occur during the spraying process. Afterward, the third drive assembly 44 moves the drying module 49 to the treated coating area, heating and drying the evenly spread paint layer to quickly cure and set the coating, preventing secondary unevenness caused by paint flow.

[0041] During the spraying and smoothing process, excess paint flows downward along the guide plate 61 at the bottom of the inner wall of the spray box 21 under the action of gravity, and collects in the pull-out recycling plate 62 set at the lower end of the guide plate 61, so as to collect and reuse excess paint and reduce paint waste.

[0042] Through the above technical solution, the rotatable brush 45, in conjunction with the spray head 48 and the drying module 49, forms an integrated automatic operation process of "spraying-spreading-drying," effectively solving the problems of uneven coating thickness and distribution caused by the lack of a spreading structure in existing technologies, and improving the uniformity, adhesion, and surface aesthetics of the coating. The mixing mechanism 5 integrates a stirring rod 52 and a scraper 53 with a scraper blade 54, which not only maintains uniform mixing of the coating but also actively removes blockages at the screen 513, ensuring the continuity and stability of the coating supply and avoiding production interruptions caused by material blockage. The guide plate 61 and the pull-out recovery plate 62 enable automatic collection and recovery of excess coating, reducing coating waste and saving production costs. This device can automatically complete the entire process of clamping, spraying, spreading, drying, and recovery, reducing manual intervention, lowering the health risk of operators inhaling mist coating, and improving production efficiency and operational safety.

[0043] It should be noted that directional terms such as "inner" and "outer" refer to "inner" and "outer" relative to the outline of the component; "inner" refers to the direction towards the component, and "outer" refers to the direction away from it. Furthermore, terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Also, in the accompanying drawings, the same reference numerals in different drawings represent the same element. It should be noted that "and / or" in the text refers to A and / or B, indicating that there are three possible scenarios: only A, only B, or both A and B. Conversely, " / and" in the text refers to A and B, indicating that there are two possible scenarios: only A and both A and B.

[0044] In this disclosure, both sides of the front face of the spray box 21 are fixedly connected to slide rails 29, and the inner wall of the slide rails 29 is slidably connected to the door 211 of the spray box 21. The sliding door 211 does not need to flip outward or occupy additional external space when opened, which is beneficial for use in workshop environments with compact equipment layout, and also facilitates the movement of operators in front of the spray box 21. The door 211 can be fully opened or stopped at any position by sliding along the slide rails 29. Operators can easily place the fan assembly 8 on the placement platform 27 inside the spray box 21, or observe the spraying, spreading, and drying status through the viewing window (if present) of the door 211 during operation without being obstructed by the door. After the door 211 is closed, the spray box 21 forms a relatively closed cavity, which can effectively prevent the diffusion of mist paint, harmful gases, and odors generated during the spraying process to the external environment, protecting the health of operators; at the same time, in conjunction with the inlet fan 23 and the exhaust fan 22, it can realize directional airflow and exhaust gas purification inside the box, meeting environmental protection requirements.

[0045] In one embodiment provided in this disclosure, the clamping mechanism 3 includes a first hollow box 31 and a second hollow box 32 arranged vertically. Both the first hollow box 31 and the second hollow box 32 are provided with a synchronous clamping assembly 33. The synchronous clamping assembly 33 includes two symmetrically arranged sets. Each set of synchronous clamping assemblies 33 includes a side plate 331, a shaft core 332, a threaded rod 333, and a first helical gear 334. The side plate 331 is fixed in the box body, and the shaft core 332 is rotatably connected to the side plate 331. One end of the shaft core 332 is provided with a threaded rod 333. The other end is provided with a first helical gear 334, and two first helical gears 334 are arranged opposite to each other; a sliding seat 335 is threadedly connected to the threaded rod 333, and an L-shaped bracket 336 is fixed on the sliding seat 335. A clamping rod 337 is connected to the top of the L-shaped bracket 336; the clamping mechanism 3 also includes a motor 34, and the output end of the motor 34 is provided with a second helical gear 341 that meshes with the first helical gear 334. The second helical gear 341 meshes with both first helical gears 334 at the same time, so that the clamping rod 337 is relatively close or far away.

[0046] When the clamping mechanism 3 is working, the motor 34 (e.g., a reversible motor) starts, and its output drives the second helical gear 341 to rotate. Since the second helical gear 341 meshes with two oppositely arranged first helical gears 334 at the same time, the rotation of the second helical gear 341 will synchronously drive the two first helical gears 334 to rotate in opposite directions (or in the same direction depending on the meshing arrangement). Each first helical gear 334 drives the corresponding threaded rod 333 to rotate through the shaft core 332. The rotational motion of the threaded rod 333 is converted into the linear motion of the sliding seat 335. Since the two sliding seats 335 are located on the left and right sides respectively and the threads are in opposite directions (or they move towards each other through the same direction of rotation but opposite arrangement), the L-shaped bracket 336 and the clamping rod 337 fixed on the sliding seat 335 synchronously move towards each other or away from each other. During this process, the L-shaped bracket 336 slides along the sliding hole on the side wall of the box, thereby accurately clamping or releasing the fan assembly 8 placed on the placement table 27 inside the spray box 21. Since the first hollow box 31 and the second hollow box 32 are arranged vertically, and the internal L-shaped brackets 336 have different heights but the top surfaces are the same, the clamping rods 337 of the upper and lower layers can clamp from different positions in the height direction of the fan assembly 8, forming a stable multi-point clamping, ensuring that the workpiece does not shift during the spraying process.

[0047] A single motor 34, in conjunction with a second helical gear 341, simultaneously drives two first helical gears 334, achieving synchronous transmission of the four threaded rods 333 across the upper and lower layers. This allows multiple L-shaped supports 336 and clamping rods 337 to move in opposite directions or in a strictly synchronized manner, thereby automatically and accurately clamping the fan assembly 8 at the center of the placement table 27. This synchronous clamping method ensures the positional stability of the workpiece during the spraying, spreading, and drying processes, avoiding workpiece offset or tilting caused by asynchronous clamping. This, in turn, ensures precise alignment between the spraying mechanism 4, the spreading brush 45, and the drying module 49 and the workpiece surface, improving the uniformity and consistency of the anti-corrosion layer processing. Furthermore, using a single motor 34 to drive all clamping components simplifies the transmission structure and reduces manufacturing costs and control complexity. The clamping rods 337, arranged in the upper and lower layers, can clamp workpieces from different heights, enhancing clamping stability and making them suitable for fan assemblies 8 of different heights.

[0048] Furthermore, the L-shaped bracket 336 in the first hollow box 31 and the L-shaped bracket 336 in the second hollow box 32 have different heights, and the top surfaces of all L-shaped brackets 336 are located on the same horizontal plane, so that the clamping rod 337 fixed to the top of the L-shaped bracket 336 can clamp the workpiece simultaneously from different positions in the height direction of the fan assembly 8.

[0049] Specifically, the upper and lower clamping rods 337 act on the upper and lower areas of the fan assembly 8 respectively, forming multi-point and multi-height stable support and constraint. This increases the contact span and number of contact points between the clamping mechanism and the fan assembly 8, improving the stability and anti-overturning ability of the clamping, and preventing the workpiece from shifting or shaking due to external forces during spraying, brushing and drying. On the other hand, since the top surfaces of each L-shaped bracket 336 are coplanar, the alignment of the inner clamping surfaces of all clamping rods 337 in the horizontal direction is ensured, ensuring that the axis or reference plane of the fan assembly 8 remains horizontal after being clamped. This is beneficial for the precise alignment between the spraying mechanism 4, the brush 45 and the drying module 49 and the workpiece surface.

[0050] In one embodiment provided in this disclosure, the application brush 45 is fixed to the bottom of the second turntable 462. The second turntable 462 is detachably mounted to the bottom of the first turntable 461 via a threaded shaft 463 and a nut 464. The first turntable 461 is fixed to the movable end of the first motor 465. In this way, the engagement of the threaded shaft 463 and the nut 464 securely locks the second turntable 462 and the application brush 45 onto the first turntable 461, ensuring that the application brush 45 will not loosen during high-speed rotation and contact with the paint, thus ensuring a reliable connection. This structure achieves a detachable connection between the application brush 45 and the drive component. When the application brush 45 becomes worn, deformed, or has excessive paint residue after long-term use, the operator can quickly loosen the nut 464 without the need for complex tools, removing the second turntable 462 along with the application brush 45 for cleaning, repair, or direct replacement with a new application brush 45. The operation is simple and quick.

[0051] In one embodiment provided in this disclosure, an exhaust fan 22 is provided on the rear end face of the spray box 21, and an inlet fan 23 is provided on the door 211 of the spray box 21. An internal threaded ring 241 is fixed at the air outlet of the exhaust fan 22 and the air inlet of the inlet fan 23. A circular ring 242 is threadedly connected to the internal threaded ring 241, and a honeycomb activated carbon disc 25 and a filter screen 26 are placed in sequence inside the circular ring 242.

[0052] During the spraying operation, the intake fan 23 installed on the door 211 draws fresh air from outside into the spray box 21, while the exhaust fan 22 installed at the rear end of the spray box 21 exhausts the air from inside the box. These two fans work together to create a directional airflow path within the spray box 21. When air containing paint mist particles and volatile harmful gases flows through the outlet of the exhaust fan 22 and the inlet of the intake fan 23, it must pass sequentially through the filter 26 and the honeycomb activated carbon disc 25 placed within the ring 242 fixed at the air outlet. The filter 26 first intercepts larger suspended particles and paint droplets in the air, while the honeycomb activated carbon disc 25 deeply adsorbs and decomposes residual fine particles, volatile organic compounds, and pungent odors. The purified air is then discharged to the external environment or recirculated back into the box. The ring 242 is threaded to the end of the air outlet via an internal threaded ring 241, facilitating quick disassembly and installation.

[0053] The combination of the intake fan 23 and the exhaust fan 22 creates a highly efficient directional airflow within the enclosed spray booth 21, improving ventilation and facilitating the timely removal of harmful gases and mist-like paint generated during the spraying process, thus reducing the concentration of pollutants inside the booth. Simultaneously, the combination of the honeycomb activated carbon disc 25 and the filter screen 26 enables multi-stage interception, deep adsorption, and decomposition of harmful gases and odors, effectively preventing direct emission of pollutants into the external environment, protecting the health of operators, and meeting environmental protection requirements. Furthermore, the quick-release structure, employing a threaded connection between the internal threaded ring 241 and the circular ring 242, allows for easy replacement or cleaning of the honeycomb activated carbon disc 25 by unscrewing the circular ring 242, simplifying maintenance and reducing operating costs.

[0054] In one embodiment provided in this disclosure, a control panel 71 is also included. The control panel 71 is provided with a wireless signal transmitting module 72. The first driving component 42, the second driving component 43, and the third driving component 44 are each provided with a first wireless signal receiving module. The first motor 465, the pump body 47, and the drying module 49 are each provided with a second wireless signal receiving module.

[0055] Before or during operation, the operator inputs control commands via buttons or a touchscreen on the control panel 71. The wireless signal transmitting module 72 on the control panel 71 converts the commands into wireless signals and transmits them outward. The first wireless signal receiving modules located on the first drive assembly 42, the second drive assembly 43, and the third drive assembly 44 receive the corresponding control signals and control their respective extension and retraction actions (such as extending or retracting), thereby moving the coating brush 45, the spray nozzle 48, the pump body 47, and the drying module 49 to the predetermined positions. Simultaneously, the second wireless signal receiving modules located on the first motor 465, the pump body 47, and the drying module 49 receive the corresponding control signals and control the start and rotation of the first motor 465, the start and stop of the pump body 47 and the paint delivery, and the heating and airflow adjustment of the drying module 49, respectively. Through the transmission and reception of the above wireless signals, the operator can remotely and systematically control the entire process of spraying, spreading, and drying without directly contacting the various actuators.

[0056] Through the cooperation of the wireless signal transmitting module 72 and various wireless signal receiving modules, unified, remote, and intelligent control of multiple actuators (electric telescopic rod, motor, pump body 47, and drying module 49) is achieved. Operators can operate the equipment away from the spray booth 21, avoiding close contact with the mist coating and reducing the health hazards of harmful gases and coating particles. Simultaneously, wireless control eliminates complex cable connections, simplifies the overall wiring of the device, and improves equipment reliability and maintenance convenience. Furthermore, operators can flexibly issue single-step or automatic sequential commands according to actual needs, enhancing automation and operational flexibility, and facilitating precise process control.

[0057] In one embodiment provided in this disclosure, the movable plate 41 is slidably connected to the sliding holes on both sides of the top box 57 via the load-bearing rod 56. The top box 57 is fixed to the top opening of the spray box 21, and the top of the top box 57 has an inlet hole 571 for the conveying pipe 58 to pass through. Before the device performs the spraying operation, the operator can manually push the movable plate 41 to slide horizontally along the load-bearing rod 56 in the sliding holes on both sides of the top box 57 according to the external dimensions of the fan assembly 8 to be treated and the position of the spraying area. Since the first drive assembly 42, the second drive assembly 43 and the third drive assembly 44 are all mounted on the movable plate 41, the change in position of the movable plate 41 will drive the coating brush 45, the spray head 48 and the pump body 47 and the drying module 49 to move horizontally synchronously, thereby adjusting the initial horizontal position of the three relative to the fan assembly 8. Meanwhile, the inlet hole 571 at the top of the top box 57 provides a reserved channel for the conveying pipe 58. After the conveying pipe 58 is led out from the mixing mechanism 5, it passes through the inlet hole 571 into the interior of the top box 57 and connects to the feed port of the pump body 47. When the movable plate 41 slides, the conveying pipe 58 can move or slide freely in the inlet hole 571, avoiding bending, stretching or jamming of the conveying pipe 58 due to the movement of the movable plate 41, and ensuring unobstructed supply of paint.

[0058] By sliding the movable plate 41 along the load-bearing rod 56 within the sliding hole, the operator can quickly and flexibly adjust the initial horizontal position of the coating brush 45, spray head 48, and drying module 49, thereby adapting to different sizes and shapes of fan assemblies 8. This ensures that each functional module can be aligned with the specific area on the workpiece that needs processing, improving the versatility and adaptability of the device. Simultaneously, the inlet hole 571 on the top box 57 provides an independent passage for the conveying pipe 58, preventing interference or entanglement between the conveying pipe 58 and other moving parts during the movement of the movable plate 41, ensuring the stability of paint delivery and the safety of equipment operation. This structural design is simple, easy to manually adjust, requires no additional power, and reduces manufacturing costs and operational complexity.

[0059] Specifically, the first drive assembly 42, the second drive assembly 43, and the third drive assembly 44 are all equipped with electric cylinders. Compared to ordinary electric push rods, electric cylinders have higher positional accuracy, adjustable speed, and output thrust, enabling precise control of the distance and stroke between the coating brush, nozzle, and drying module and the fan assembly surface. Simultaneously, each electric cylinder is equipped with a wireless signal transmitting module to send real-time feedback signals regarding its position, speed, load, and limit status. The control panel or central controller receives these signals via a wireless signal receiving module, thereby achieving closed-loop control, sequential linkage, and remote monitoring of the three electric cylinders. This significantly improves the coordination and reliability of the spraying, spreading, and drying processes, and reduces the complexity of internal wiring.

[0060] It should be noted that the control panel, wireless signal transmitting module, sensor or control element are all existing technologies, and this disclosure does not impose any restrictions on them.

[0061] In one embodiment of this disclosure, the guide plate 61 has an inclined structure with an insertion hole 611 at its bottom. One end of the recovery plate 62 is inserted into the insertion hole 611, and a recovery groove 63 is formed at the top of the recovery plate 62. During the spraying and spreading process, excess paint that is not adsorbed by the workpiece surface or flows down from the workpiece drips naturally onto the guide plate 61 under gravity and automatically collects at the bottom along the inclined surface, eventually flowing into the recovery groove 63 at the top of the recovery plate 62 through the insertion hole 611. After the operation is completed, the operator can pull the recovery plate 62 out of the insertion hole 611 to reuse or centrally process the recovered paint in the collection groove. This achieves automatic collection and recovery of excess paint, reduces paint waste, lowers production costs, and also avoids the accumulation of a large amount of paint at the bottom of the spray box 21, thus helping to keep the inside of the box clean and reducing the frequency of equipment maintenance. The plug-in connection between the recovery plate 62 and the insertion hole 611 facilitates quick assembly and disassembly, is easy to operate, and helps improve production efficiency.

[0062] In one embodiment of this disclosure, the spray box 21 is further provided with a placement platform 27, which is fixed to the upper end of the inclined surface of the guide plate 61 by a support rod 28, and is used to support the fan assembly 8. The fan assembly 8 is stably supported on the placement platform 27, so that the bottom surface of the fan assembly 8 is kept at a certain distance from the bottom of the spray box 21, which facilitates the clamping mechanism 3 to stably clamp it from all sides. At the same time, it also provides sufficient operating space for the spraying mechanism 4, the coating brush 45 and the drying module 49, ensuring that each functional module can accurately act on the surface to be processed of the fan assembly 8. Since the placement platform 27 is fixed to the guide plate 61 by the support rod 28, and the guide plate 61 itself is fixed to the bottom of the inner wall of the spray box 21, this connection method makes it difficult for the placement platform 27 to shift or shake during long-term use, ensuring the repeatability and positioning accuracy of the workpiece. In addition, the support rod 28 is located at the upper end of the inclined surface of the guide plate 61, which avoids the support rod 28 being submerged in the backflow paint collected at the lower end of the guide plate 61, reduces the pollution and corrosion of the support rod 28 and the placement platform 27 by the paint, and helps to extend the service life of the device.

[0063] In one embodiment provided in this disclosure, the driving component includes a second motor 551 fixed to the top of the paint tank 51. The movable end of the second motor 551 is connected to a rotating rod 552. The stirring rod 52 and the scraper 53 are respectively fixed to both sides of the rotating rod 552. A valve 512 is provided on the bottom discharge pipe 511 of the paint tank 51. The valve 512 is connected to the feed port of the pump body 47 through the conveying pipe 58.

[0064] During operation, the second motor 551, fixed to the top of the paint tank 51, starts, and its movable end drives the rotating rod 552 to rotate. Since the stirring rod 52 and scraper 53 are fixed to both sides of the rotating rod 552, they rotate synchronously with it. The stirring rod 52 continuously rotates inside the paint tank 51, uniformly stirring the anti-corrosion paint to prevent the solid particles in the paint from settling or separating, ensuring the uniformity and stability of the paint components. Simultaneously, the scraper 53, during its rotation, drives the scraper blade 54 fixed at its bottom to slide against the upper surface of the screen 513 at the bottom outlet of the paint tank 51, removing clumps, impurities, or undispersed materials accumulated on the screen 513, keeping the screen 513 clear. When spraying is required, open valve 512 on the discharge pipe 511 at the bottom of paint tank 51. After stirring and filtering by screen 513, the uniform and stable paint flows out through the discharge pipe, and is then transported to the inlet of pump body 47 through conveying pipe 58, and finally sprayed out by nozzle 48.

[0065] A single second motor 551 simultaneously drives the stirring rod 52 and the scraper 53 to rotate, achieving coordinated operation of three functions: stirring, wall scraping, and screen cleaning. The continuous rotation of the stirring rod 52 ensures uniform mixing of the coating, preventing quality degradation due to sedimentation. The active cleaning action of the scraper 53 and scraper blades 54 on the screen 513 effectively prevents blockage of the discharge pipe, ensuring a continuous and stable supply of coating and reducing production downtime caused by blockages. Furthermore, integrating the stirring and screen cleaning functions onto the same drive shaft simplifies the transmission structure, reduces manufacturing costs and control complexity, and improves the reliability of equipment operation.

[0066] Limiting rods 59 are fixedly connected to both ends of the top of the paint tank 51. The outer wall of the limiting rods 59 is sleeved on the top cover 514 of the paint tank 51. By setting the limiting rods 59, the installation position of the top cover 514 can be limited, thereby providing a positioning reference for the top cover 514 during installation, restricting the horizontal movement of the top cover 514, and ensuring that the top cover 514 can accurately and stably cover the top opening of the paint tank 51. This facilitates quick alignment and installation of the top cover 514 without repeated adjustments, improving assembly efficiency. At the same time, it also prevents the top cover 514 from shifting or slipping during equipment operation or vibration, ensuring the sealing of the paint tank 51 and preventing paint splashing or impurities from entering. The connection method between the limiting rods 59 and the top cover 514 is simple in structure, facilitating the disassembly and cleaning of the top cover 514, and is beneficial for daily maintenance.

[0067] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0068] Finally, it should be noted that this invention is not limited to the optional embodiments described above, and anyone can derive other various forms of products under the guidance of this invention. The specific embodiments described above should not be construed as limiting the scope of protection of this invention, which should be determined by the claims, and the specification can be used to interpret the claims.

Claims

1. An automatic spraying device for anti-corrosion coating of wind turbine foundation, comprising a base, a spraying box mounted on the base, a clamping mechanism for holding wind turbine components, a spraying mechanism for spraying coating material, and a mixing mechanism for supplying coating material, characterized in that, The spraying mechanism includes a movable plate, a first drive assembly, a second drive assembly, and a third drive assembly mounted on the movable plate. The first drive assembly is connected to a rotatable brush, the second drive assembly is connected to a pump body, the outlet of the pump body is connected to a spray nozzle, and the third drive assembly is connected to a drying module. The mixing mechanism includes a paint tank, a stirring rod, a scraper, and a driving component for driving the stirring rod and the scraper to rotate. The stirring rod is disposed in the paint tank, and a scraper blade is fixed to the bottom end of the scraper. A screen is provided at the bottom outlet of the paint tank, and the scraper blade is in close contact with the upper surface of the screen. A guide plate is fixed to the bottom of the inner wall of the spray box, and a pull-out recycling plate is provided at the lower end of the guide plate for collecting excess paint.

2. The automatic spraying device for anti-corrosion coating of wind turbine foundation according to claim 1, characterized in that, The clamping mechanism includes a first hollow box and a second hollow box arranged vertically. Both the first and second hollow boxes are equipped with synchronous clamping components. The synchronous clamping components consist of two symmetrically arranged sets. Each set of synchronous clamping components includes a side plate, a shaft, a threaded rod, and a first helical gear. The side plate is fixed within the box body, and the shaft is rotatably connected to the side plate. One end of the shaft is provided with a threaded rod, and the other end with a first helical gear. The two first helical gears are arranged opposite each other. A sliding seat is threaded onto the threaded rod, and an L-shaped bracket is fixed to the sliding seat. A clamping rod is connected to the top of the L-shaped bracket. The clamping mechanism also includes an electric motor, the output end of which is provided with a second inclined gear that meshes with the first inclined gear. The second inclined gear meshes with two first inclined gears simultaneously, so that the clamping rod is relatively close to or far away from each other.

3. The automatic spraying device for anti-corrosion coating of wind turbine foundation according to claim 2, characterized in that, The L-shaped brackets inside the first hollow box and the L-shaped brackets inside the second hollow box have different heights, and the top surfaces of all L-shaped brackets are located on the same horizontal plane.

4. The automatic spraying device for anti-corrosion coating of wind turbine foundation according to claim 1, characterized in that, The application brush is fixed to the bottom of the second turntable, which is detachably mounted to the bottom of the first turntable via a threaded shaft and a nut. The first turntable is fixed to the movable end of the first motor.

5. The automatic spraying device for anti-corrosion coating of wind turbine foundation according to claim 1, characterized in that, The rear end of the spraying box is equipped with an exhaust fan, and the door of the spraying box is equipped with an inlet fan. Both the exhaust fan outlet and the inlet fan inlet are fixed with internal threaded rings. A circular ring is threaded onto the internal threaded ring, and a honeycomb activated carbon disc and a filter screen are placed sequentially inside the circular ring.

6. The automatic spraying device for anti-corrosion coating of wind turbine foundation according to claim 1, characterized in that, It also includes a control panel, which is equipped with a wireless signal transmitting module. The first drive component, the second drive component, and the third drive component are each equipped with a first wireless signal receiving module, and the first motor, the pump body, and the drying module are each equipped with a second wireless signal receiving module.

7. The automatic spraying device for anti-corrosion coating of wind turbine foundation according to claim 1, characterized in that, The movable plate is slidably connected to the sliding holes on both sides of the top box via a load-bearing rod. The top box is fixed at the top opening of the spray box, and the top of the top box has an inlet hole for the conveying pipe to pass through.

8. The automatic spraying device for anti-corrosion coating of wind turbine foundation according to claim 1, characterized in that, The guide plate has an inclined structure with an insertion hole at its bottom. One end of the recycling plate is inserted into the insertion hole, and a recycling groove is formed at the top of the recycling plate.

9. The automatic spraying device for anti-corrosion coating of wind turbine foundation according to claim 1, characterized in that, The spraying box is also equipped with a placement platform, which is fixed to the upper end of the inclined surface of the guide plate by a support rod and is used to support the fan assembly.

10. The automatic spraying device for anti-corrosion coating of wind turbine foundation according to claim 1, characterized in that, The driving component in the mixing mechanism for driving the stirring rod and scraper to rotate includes a second motor fixed to the top of the paint tank. The movable end of the second motor is connected to a rotating rod. The stirring rod and scraper are respectively fixed to both sides of the rotating rod. A valve is provided on the bottom discharge pipe of the paint tank. The valve is connected to the feed port of the pump body through a conveying pipe.

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