Appearance spraying device for submersible pump machining

Abstract

The invention discloses a submersible pump machining appearance spraying device, and relates to the technical field of spraying device.The submersible pump machining appearance spraying device comprises a box body, a connecting shaft is rotationally arranged on a support, the bottom of the connecting shaft movably penetrates into the box body and is provided with a driving motor, a drying mechanism is arranged on the outer wall of the connecting shaft between the support and the box body, and a workbench is fixedly connected to the top of a short shaft; a fixing mechanism is arranged on the workbench, the short shaft is connected with the connecting shaft through a connecting piece, and the paint spraying mechanism is arranged at a certain corner of the top face of the box body. Through the use of the drying mechanism, the paint surface can be conveniently and timely dried by the submersible pump after paint spraying, the paint surface is prevented from flowing and adhering, dust is prevented from being attached to the undried paint surface, the flatness and smoothness of the paint surface are improved, meanwhile, the curing speed of the paint surface is increased, and the processing rhythm is shortened; the trouble that the submersible pump needs to be independently transferred to drying equipment after being sprayed is avoided, procedure circulation is reduced, and labor cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of spraying equipment technology, and in particular to a submersible pump surface spraying device. Background Technology

[0002] Submersible pumps are core general-purpose equipment in fields such as water conservancy irrigation, municipal water supply and drainage, and industrial fluid transportation. Their exterior painting is a crucial process in manufacturing. The paint not only determines the appearance of the submersible pump but also forms a protective layer on its metal casing, improving its corrosion resistance, moisture resistance, and wear resistance. This directly affects the service life and operational stability of the submersible pump under complex conditions such as underwater and outdoor environments. Therefore, the industry has strict requirements for the smoothness, uniformity, and curing effect of the paint surface during submersible pump exterior painting.

[0003] However, existing spraying equipment requires manual transfer to dedicated drying equipment for paint curing after the submersible pump spraying is completed. This process is cumbersome, increases labor costs, and the undried paint is easily contaminated with dust and damaged during transfer, resulting in paint defects. In addition, the uneven heat supply of traditional drying equipment can lead to incomplete drying or over-drying, causing the paint to crack and wrinkle, making it difficult to guarantee drying quality. Furthermore, the separate spraying and drying processes result in a long overall processing cycle and slow paint curing speed, which cannot meet the needs of enterprises for mass production and high efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a submersible pump surface coating device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A submersible pump surface coating device includes a housing and further includes: A bracket is fixed to the top surface of the box. A connecting shaft is rotatably provided on the bracket. The bottom of the connecting shaft extends movably into the inside of the box and is equipped with a drive motor. The drive motor is installed on the bottom surface of the box. A drying mechanism for drying submersible pumps is provided on the outer wall of the connecting shaft between the bracket and the box. A short shaft is rotatably mounted on the top surface of the bracket. A worktable is fixedly connected to the top of the short shaft. A fixing mechanism for fixing the submersible pump is provided on the worktable. The short shaft is connected to the connecting shaft through a connector. A painting mechanism is located at a corner on the top surface of the housing.

[0006] Preferably, the drying mechanism includes a circular plate fixed to the outer wall of the connecting shaft and an annular cavity opened inside the circular plate, and a plurality of air outlets communicating with the annular cavity are evenly opened on the top surface of the circular plate. A heating gas assembly is provided on the outer wall of the connecting shaft inside the box.

[0007] Preferably, the heating gas assembly includes an annular box rotatably disposed on the outer wall of the connecting shaft, the annular box being fixedly connected to the top surface of the housing; A hot air pump is installed on the bottom surface of the box, and the outlet of the hot air pump is connected to the annular box through a duct. The annular box and the annular cavity are connected by a connecting cavity.

[0008] Preferably, the connecting cavity includes a circular cavity formed inside the connecting shaft, the top of the circular cavity is connected to the annular cavity through a first air hole, and the circular cavity is connected to the annular box through a second air hole.

[0009] Preferably, a sealing plate is fixedly connected to the inner bottom surface of the bracket, and the sealing plate is located on the side away from the workbench.

[0010] Preferably, the connector includes a drive gear fixed to the outer wall of the connecting shaft, and a driven gear meshing with the drive gear is mounted on the outer wall of the short shaft.

[0011] Preferably, the painting mechanism includes an outer cylinder installed on the top surface of the housing, an inner cylinder slidably disposed inside the outer cylinder, and a support plate fixed to the top of the inner cylinder. A rectangular box is slidably disposed on the top surface of the support plate, and a plurality of high-pressure spray nozzles communicating with the rectangular box are evenly installed on the outer side of the rectangular box. The bottom surface of the box is equipped with a paint tank, and a paint pump is installed inside the paint tank. The paint pump has a liquid guide pipe at the paint outlet end. One end of the liquid guide pipe passes through the paint tank, the box body, the outer cylinder, the inner cylinder and the support plate and is connected to the rectangular box.

[0012] Preferably, an electric telescopic rod is installed on the bottom surface of the support plate, and the fixed end of the electric telescopic rod is fixedly connected to the top surface of the box. Electric actuators are symmetrically installed on the top surface of the support plate. The movable end of the electric actuator is fixedly connected to a mounting plate, and the mounting plate is fixedly connected to the rectangular box.

[0013] Preferably, the fixing mechanism includes rectangular grooves symmetrically opened on the top surface of the workbench, a bidirectional lead screw is rotatably provided in the rectangular groove, one end of the bidirectional lead screw movably passes through the outer wall of the workbench and is fixedly connected to a handle, threaded sleeves are threadedly connected to the outer walls of both ends of the bidirectional lead screw, and the threaded sleeves are slidably disposed with the rectangular groove, a connecting plate is fixedly connected to the top of the threaded sleeve, and an arc-shaped fixing plate is fixedly connected to the outside of the connecting plate.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present invention uses a drying mechanism to facilitate timely drying of the paint surface of the submersible pump after spraying, avoiding paint dripping and sticking, preventing dust from adhering to the undried paint surface, improving the smoothness and gloss of the paint surface, accelerating the curing speed of the paint surface, shortening the processing cycle, avoiding the trouble of transferring the submersible pump to the drying equipment separately after spraying, reducing process flow, and reducing labor costs. 2. The present invention uses a fixing mechanism to securely fix submersible pumps of different sizes and models on the workbench, preventing the submersible pumps from shifting, shaking, or even falling off during the rotation of the workbench. This ensures the safety of submersible pump processing and avoids problems such as paint scratches and spraying deviation caused by shaking, thereby improving the stability of spraying quality. 3. The present invention facilitates the spraying of paint onto the submersible pump on the workbench by using a spraying mechanism. With the uniform rotation of the submersible pump, it achieves all-round, no-dead-angle spraying of the submersible pump's appearance, replacing the traditional manual spraying method, reducing the intensity of manual labor, avoiding problems such as uneven paint surface, missed spraying, and paint waste that occur during manual spraying, while improving spraying efficiency and adapting to the processing needs of batch submersible pumps. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure from a frontal view is shown according to an embodiment of the present invention; Figure 2 A side view structural schematic diagram is shown according to an embodiment of the present invention; Figure 3 A schematic cross-sectional view of the structure provided in an embodiment of the present invention is shown; Figure 4 A schematic diagram of the drying mechanism provided according to an embodiment of the present invention is shown; Figure 5 A cross-sectional view of a connecting shaft provided according to an embodiment of the present invention is shown; Figure 6 A schematic diagram of the fixing mechanism provided according to an embodiment of the present invention is shown; Figure 7 A schematic diagram of the structure of the connector provided according to an embodiment of the present invention is shown; Figure 8 A schematic diagram of the painting mechanism provided according to an embodiment of the present invention is shown; Figure 9 A cross-sectional view of the outer cylinder and inner cylinder provided according to an embodiment of the present invention is shown.

[0016] Legend: 1. Housing; 2. Bracket; 3. Circular plate; 4. Workbench; 5. Support plate; 6. Hot air pump; 7. Air duct; 8. Connecting shaft; 9. Drive motor; 10. Paint tank; 11. Liquid duct; 12. Air outlet; 13. Driven gear; 14. Sealing plate; 15. Drive gear; 16. Short shaft; 17. Air hole one; 18. Annular cavity; 19. Circular cavity; 20. Air hole two; 21. Annular box; 22. Rectangular groove; 23. Two-way lead screw; 24. Threaded sleeve; 25. Connecting plate; 26. Arc-shaped fixing plate; 27. Handle; 28. Rectangular box; 29. ​​Electric actuator; 30. Electric telescopic rod; 31. Outer cylinder; 32. Mounting plate; 33. Paint pump; 34. Inner cylinder; 35. High-pressure nozzle. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-9 The present invention provides a technical solution: A submersible pump surface coating device includes a housing 1, and further includes: The bracket 2 is fixed to the top surface of the housing 1 by welding or bolting. As the supporting carrier of the entire device, the bracket 2's core function is to provide a stable installation reference for the connecting shaft 8, short shaft 16, and worktable 4, preventing shaking caused by unstable support during subsequent submersible pump spraying and drying processes, ensuring synchronous linkage of all moving structures, and guaranteeing spraying accuracy. The connecting shaft 8 is rotatably mounted on the bracket 2 via bearings. The bottom of the connecting shaft 8 extends into the housing 1 and is connected to the output end of the drive motor 9. The drive motor 9 is detachably mounted on the bottom surface of the housing 1 via bolts. As the power source of the entire device, the drive motor 9 provides a stable and controllable driving force to the connecting shaft 8, causing it to rotate at a uniform speed. This, in turn, drives the short shaft 16 and worktable 4 to rotate synchronously through the connecting parts, enabling the submersible pump to rotate at a uniform speed during spraying, ensuring uniform paint coverage and avoiding localized missed spraying or overspraying. At the same time, the rotation of the connecting shaft 8 also drives the drying mechanism to work synchronously, achieving coordinated spraying and drying, shortening the processing cycle, and improving production efficiency. The outer wall of the connecting shaft 8 between the bracket 2 and the housing 1 is equipped with a drying mechanism for drying the submersible pump. The use of the drying mechanism makes it easy to dry the paint surface of the submersible pump after it has been painted, so as to avoid paint dripping and sticking, prevent dust from adhering to the undried paint surface, improve the smoothness and gloss of the paint surface, accelerate the curing speed of the paint surface, shorten the processing cycle, avoid the trouble of transferring the submersible pump to the drying equipment separately after painting, reduce process flow, and reduce labor costs.

[0019] The short shaft 16 is rotatably mounted on the top surface of the bracket 2 via bearings. A worktable 4 is fixedly connected to the top of the short shaft 16. The worktable 4 provides a stable support surface for the submersible pump, ensuring that the submersible pump remains horizontal during spraying and drying, and avoiding uneven paint surface or drying deformation caused by tilting. The worktable 4 is equipped with a fixing mechanism for fixing the submersible pump. The use of the fixing mechanism makes it easy to firmly fix submersible pumps of different sizes and models on the worktable 4, preventing the submersible pump from shifting, shaking, or even falling during the rotation of the worktable 4. This not only ensures the processing safety of the submersible pump, but also avoids problems such as paint scratches and spraying deviation caused by shaking, thus improving the stability of spraying quality.

[0020] The short shaft 16 is connected to the connecting shaft 8 by a connector. The use of the connector facilitates the synchronous rotation of the connecting shaft 8 and the short shaft 16, so that the power of the drive motor 9 can be efficiently transmitted to the short shaft 16, driving the worktable 4 and the submersible pump to rotate at a uniform speed. No additional power source is required, which simplifies the device structure, reduces the equipment manufacturing cost and energy consumption, and ensures the consistency of rotation speed, thus ensuring the uniformity of spraying and drying.

[0021] The painting mechanism is located at a corner on the top surface of the housing 1. By using the painting mechanism, it is easy to spray paint onto the submersible pump on the workbench 4. With the uniform rotation of the submersible pump, it can achieve all-round, no-dead-angle spraying of the submersible pump's appearance, replacing the traditional manual spraying method, reducing the intensity of manual labor, avoiding problems such as uneven paint surface, missed spraying, and paint waste that occur during manual spraying, and improving spraying efficiency to meet the processing needs of batch submersible pumps.

[0022] In this invention, the drying mechanism includes a circular plate 3 fixed to the outer wall of the connecting shaft 8 and an annular cavity 18 opened inside the circular plate 3. The circular plate 3 rotates synchronously with the connecting shaft 8, so that the drying range can be synchronously covered with the rotation of the submersible pump, ensuring that all surfaces of the submersible pump can be dried uniformly with hot air, avoiding defects such as paint cracking and wrinkling caused by incomplete drying or excessive drying in certain areas. Multiple air outlets 12 communicating with the annular cavity 18 are evenly opened on the top surface of the circular plate 3. The multiple air outlets 12 are evenly distributed in a ring, which facilitates the uniform and dispersed spraying of hot air from the annular cavity 18 onto the surface of the submersible pump, increasing the contact area between the hot air and the paint surface, accelerating the curing speed of the paint surface, and avoiding local paint surface damage caused by concentrated hot air spraying, thereby further improving the drying quality.

[0023] A heating gas assembly is provided on the outer wall of the connecting shaft 8 inside the housing 1. The use of the heating gas assembly makes it easy to continuously provide hot gas at a stable temperature to the annular cavity 18, ensuring that the drying mechanism can work continuously and efficiently without the need for manual addition of heat source, realizing automated drying and reducing manual intervention. At the same time, the temperature and supply of hot gas can be adjusted according to the paint material and thickness, improving the adaptability of the device and meeting the drying needs of submersible pumps of different specifications.

[0024] In this invention, the heating gas assembly includes an annular box 21 rotatably mounted on the outer wall of the connecting shaft 8. The annular box 21 is fixed to the top surface of the housing 1 by a bracket. The annular box 21 and the connecting shaft 8 are connected by a rotatable seal, which ensures that the connecting shaft 8 can rotate freely and prevents the leakage of hot gas in the annular box 21. This ensures that all the hot gas can enter the annular cavity 18 through the connecting cavity, improving the utilization rate of hot gas and reducing energy consumption. At the same time, the fixed annular box 21 can provide a stable storage and transportation space for hot gas, avoiding unstable hot gas supply caused by the rotation of the connecting shaft 8.

[0025] A hot air pump 6 is installed on the bottom surface of the inner chamber 1. The outlet of the hot air pump 6 is connected to the annular box 21 through a guide pipe 7. The hot air pump 6 can generate high-temperature hot air and deliver the hot air stably to the annular box 21 through the guide pipe 7 to provide a continuous heat source for the drying mechanism. The hot air pump 6 can realize temperature regulation to adapt to the drying needs of different paint surfaces. The guide pipe 7 is made of high temperature resistant and corrosion resistant material to prevent the hot air from damaging the pipe at high temperature, and at the same time avoid hot air leakage caused by pipe corrosion, ensuring the stability and safety of hot air delivery.

[0026] The annular box 21 and the annular cavity 18 are connected by a connecting cavity to achieve a stable delivery of hot air from the annular box 21 to the annular cavity 18. This ensures that the hot air can smoothly enter the annular cavity 18 and be sprayed onto the surface of the submersible pump through the air outlet 12, forming a complete hot air circulation and improving drying efficiency and drying uniformity.

[0027] In this invention, the connecting cavity includes a circular cavity 19 formed inside the connecting shaft 8. The top of the circular cavity 19 is connected to the annular cavity 18 through an air hole 17, and the circular cavity 19 is connected to the annular box 21 through an air hole 20. The connecting cavity is formed entirely inside the connecting shaft 8, eliminating the need for additional external pipes, simplifying the device structure, avoiding interference between external pipes and rotating parts, reducing hot air leakage points, and improving hot air utilization. Both the air hole 17 and the air hole 20 are symmetrically distributed to ensure that hot air can enter the circular cavity 19 evenly and be evenly distributed from the circular cavity 19 to the annular cavity 18, avoiding stagnation or uneven distribution of hot air during transportation, and further ensuring the uniformity of drying.

[0028] In this invention, a sealing plate 14 is fixedly attached to the inner bottom surface of the bracket 2, and the sealing plate 14 is located on the side away from the workbench 4. By using the sealing plate 14, it is easy to seal the gap between the bracket 2 and the box 1, prevent the hot air in the box 1 from leaking out of the gap, and avoid the waste of hot air.

[0029] In this invention, the connecting component includes a drive gear 15 fixed to the outer wall of the connecting shaft 8, and a driven gear 13 meshing with the drive gear 15 is installed on the outer wall of the short shaft 16. The gear meshing connection method realizes the precise transmission of power, ensures the synchronous rotation of the connecting shaft 8 and the short shaft 16, avoids slippage, displacement and other situations, and thus ensures the uniform rotation of the workbench 4 and the submersible pump, ensuring the uniformity of spraying. The gear meshing has high transmission efficiency and stable structure, can withstand a certain load, and is suitable for the weight requirements of the submersible pump. At the same time, the gear structure is easy to process, install and maintain, reducing the maintenance cost of the device.

[0030] In this invention, the painting mechanism includes an outer cylinder 31 mounted on the top surface of the housing 1, an inner cylinder 34 slidably disposed within the outer cylinder 31, and a support plate 5 fixed to the top of the inner cylinder 34. The outer cylinder 31 and the inner cylinder 34 slide together to realize the up-and-down movement of the support plate 5, thereby adjusting the height of the high-pressure nozzle 35 to adapt to the painting needs of submersible pumps of different heights, ensuring that the high-pressure nozzle 35 can always be at the optimal painting height and improving the painting quality. A rectangular box 28 is slidably disposed on the top surface of the support plate 5, and multiple high-pressure nozzles 35 communicating with the rectangular box 28 are evenly installed on the outer side of the rectangular box 28. The rectangular box 28 can slide on the support plate 5, which facilitates the adjustment of the horizontal distance between the high-pressure nozzle 35 and the submersible pump, adapting to submersible pumps of different sizes. At the same time, the multiple high-pressure nozzles 35 are evenly distributed, which facilitates the expansion of the painting range, ensuring that the surface of the submersible pump can be quickly and evenly covered with paint, avoiding missed spraying or thick spraying, and improving the painting efficiency and paint surface smoothness.

[0031] A paint tank 10 is installed on the bottom surface of the inner body 1. The paint tank 10 is used to store paint and provide a continuous supply of paint for the painting mechanism, eliminating the need for frequent paint replenishment and improving processing efficiency. At the same time, the paint tank 10 can also play a certain role in dust prevention and pollution prevention, protecting the paint quality. A paint pump 33 is installed inside the paint tank 10. The paint outlet end of the paint pump 33 is equipped with a liquid guide pipe 11. One end of the liquid guide pipe 11 passes through the paint tank 10, the inner body 1, the outer cylinder 31, the inner cylinder 34 and the support plate 5 respectively, and is connected to the rectangular box 28. The paint pump 33 can provide stable pressure for paint delivery, so that the paint can be smoothly delivered to the rectangular box 28 through the liquid guide pipe 11, and sprayed onto the surface of the submersible pump in the form of high-pressure atomization through the high-pressure nozzle 35. The atomized paint particles are finer, the paint surface is smoother, and the graininess of the paint surface is reduced. The liquid guide pipe 11 is made of flexible and corrosion-resistant material, which is compatible with the lifting of the inner cylinder 34 and the sliding of the rectangular box 28, avoiding pipe breakage and leakage, and preventing paint from corroding the pipe, thus extending the service life of the pipe.

[0032] In this invention, an electric telescopic rod 30 is installed on the bottom surface of the support plate 5, and the fixed end of the electric telescopic rod 30 is fixedly connected to the top surface of the housing 1. The electric telescopic rod 30 provides a stable and controllable driving force for the lifting and lowering of the support plate 5, realizing the automatic adjustment of the height of the high-pressure nozzle 35 without manual adjustment, reducing the intensity of manual labor. At the same time, the adjustment accuracy is high, which can accurately locate the optimal spraying height and improve the spraying quality. In addition, the extension stroke of the electric telescopic rod 30 is adjustable to adapt to submersible pumps of different heights, enhancing the adaptability of the device.

[0033] Electric actuators 29 are symmetrically mounted on the top surface of the support plate 5. The movable end of the electric actuator 29 is fixedly connected to the mounting plate 32, which is fixedly connected to the rectangular box 28. The electric actuators 29 provide automated driving force for the sliding of the rectangular box 28, realizing automated adjustment of the horizontal distance of the high-pressure nozzle 35 without manual pushing, thus improving adjustment efficiency and accuracy. At the same time, the symmetrically arranged electric actuators 29 can ensure that the rectangular box 28 slides smoothly, avoiding spraying deviation caused by the tilt of the rectangular box 28, and further ensuring spraying quality. The extension stroke of the electric actuators 29 is adjustable to adapt to submersible pumps of different sizes, expanding the applicability of the device.

[0034] In this invention, the fixing mechanism includes rectangular grooves 22 symmetrically formed on the top surface of the workbench 4. A bidirectional lead screw 23 is rotatably mounted within the rectangular groove 22. One end of the bidirectional lead screw 23 extends through the outer wall of the workbench 4 and is fixedly connected to a handle 27. Threaded sleeves 24 are threadedly connected to the outer walls of both ends of the bidirectional lead screw 23, and the threaded sleeves 24 are slidably mounted with the rectangular groove 22. A connecting plate 25 is fixedly connected to the top of the threaded sleeve 24, and an arc-shaped fixing plate 26 is fixedly connected to the outer side of the connecting plate 25. The two ends of the bidirectional lead screw 23 have threads with opposite directions of rotation. When the bidirectional lead screw 23 is rotated, the threaded sleeves 24 at both ends can slide synchronously in opposite directions along the rectangular groove 22, thereby driving the connecting plate 25 and the arc-shaped fixing plate 26 to move synchronously. This enables the clamping and loosening of submersible pumps of different sizes, adapting to various models and sizes of submersible pumps, greatly improving the adaptability of the device. The curved structure of the arc-shaped fixing plate 26 is compatible with the shape of the submersible pump, increasing the contact area with the pump surface and improving the fixation firmness. It also avoids squeezing damage to the pump surface, protecting the pump's machining accuracy. The rectangular groove 22 guides and limits the threaded sleeve 24, preventing it from rotating synchronously with the bidirectional lead screw 23. This ensures the threaded sleeve 24 can slide smoothly and steadily along the rectangular groove 22, guaranteeing the adjustment stability of the fixing mechanism. The handle 27 allows for easy manual rotation of the bidirectional lead screw 23, simplifying operation and reducing the difficulty of manual operation without the need for additional tools. The entire fixing mechanism has a simple structure, low manufacturing cost, and is firmly fixed and easy to adjust. It effectively prevents the submersible pump from shaking or shifting during spraying and drying, ensuring processing quality and safety.

[0035] Working principle: When using this invention, first place the submersible pump to be sprayed in the center of the workbench 4, and turn the handle 27 to drive the bidirectional lead screw 23 in the rectangular groove 22 to rotate; because the two ends of the bidirectional lead screw 23 have threads with opposite directions of rotation, its rotation will drive the threaded sleeves 24 at both ends to slide towards each other along the rectangular groove 22. The threaded sleeves 24 drive the arc-shaped fixing plate 26 to move synchronously through the connecting plate 25 until the arc-shaped fixing plate 26 is tightly attached to the outer wall of the submersible pump, thus completing the firm fixation of the submersible pump; Based on the height and radial dimensions of the submersible pump, the position of the high-pressure nozzle 35 is automatically adjusted: the electric telescopic rod 30 is activated, and its extension and retraction cause the inner cylinder 34 to slide up and down along the outer cylinder 31, thereby adjusting the vertical height of the support plate 5 and the high-pressure nozzle 35; the electric push rod 29 is activated, and its extension and retraction cause the rectangular box 28 to slide horizontally on the support plate 5 through the mounting plate 32, adjusting the horizontal distance between the high-pressure nozzle 35 and the submersible pump, so that the high-pressure nozzle 35 is in the optimal spraying position to ensure the spraying effect; Start the drive motor 9 inside the housing 1, and its output end drives the connecting shaft 8 to rotate at a constant speed; the driving gear 15 on the outer wall of the connecting shaft 8 meshes with the driven gear 13 on the outer wall of the short shaft 16, and the power is precisely transmitted to the short shaft 16 through gear transmission, thereby driving the workbench 4 and the fixed submersible pump to rotate synchronously at a constant speed, providing a foundation for the all-round, no-dead-angle spraying of the submersible pump. While the submersible pump is rotating, the paint pump 33 inside the paint tank 10 is started. Under the pressure of the paint pump 33, the paint passes through the guide pipe 11 in sequence through the paint tank 10, the tank body 1, the outer cylinder 31, the inner cylinder 34 and the support plate 5, and finally enters the rectangular box 28. Multiple high-pressure nozzles 35 evenly installed on the outer side of the rectangular box 28 spray the paint in the form of high-pressure atomization. The fine paint particles after atomization are evenly covered on the entire surface of the submersible pump as it rotates at a constant speed. While the painting operation is underway, the hot air pump 6 is started to achieve the coordinated spraying and drying. The high-temperature hot air generated by the hot air pump 6 is transported through the air guide pipe 7 to the annular box 21 fixed to the top surface of the box 1. The hot air in the annular box 21 enters the circular cavity 19 inside the connecting shaft 8 through the second air hole 20, and then enters the annular cavity 18 inside the circular plate 3 on the outer wall of the connecting shaft 8 through the first air hole 17. Finally, it is evenly sprayed onto the surface of the rotating submersible pump through the air outlets 12 evenly opened on the top surface of the circular plate 3. As the connecting shaft 8 rotates, it drives the circular plate 3 to rotate synchronously, so that the hot air covers the paint surface of the submersible pump in all directions without dead angles, ensuring uniform drying. The sealing plate 14 on the inner bottom surface of the bracket 2 can effectively seal the gap between the bracket 2 and the box 1, prevent hot air leakage, and improve the hot air utilization rate. Hot air quickly dries the freshly sprayed paint surface, preventing paint from dripping or sticking, preventing dust from adhering to the undried paint surface, and at the same time accelerating the curing speed of the paint surface and shortening the processing cycle. After the submersible pump is evenly coated and the paint is completely dry, turn off the drive motor 9, paint pump 33 and hot air pump 6 in sequence to stop the operation of all mechanisms; turn the handle 27 in the opposite direction to drive the bidirectional lead screw 23 to rotate in the opposite direction, so that the threaded sleeve 24 drives the arc-shaped fixing plate 26 to slide in the opposite direction, release the submersible pump, and you can take off the processed submersible pump to complete the entire spraying and drying process.

[0036] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A submersible pump surface coating device, comprising a housing (1), characterized in that, Also includes: A bracket (2) is fixed to the top surface of the box (1). A connecting shaft (8) is rotatably provided on the bracket (2). The bottom of the connecting shaft (8) is movably inserted into the inside of the box (1) and is provided with a drive motor (9). The drive motor (9) is installed on the bottom surface of the box (1). A drying mechanism for drying submersible pumps is provided on the outer wall of the connecting shaft (8) between the bracket (2) and the box (1). A short shaft (16) is rotatably mounted on the top surface of the bracket (2). A workbench (4) is fixedly connected to the top of the short shaft (16). A fixing mechanism for fixing the submersible pump is provided on the workbench (4). The short shaft (16) is connected to the connecting shaft (8) by a connector. The painting mechanism is located at a corner on the top surface of the box (1).

2. The submersible pump surface coating device according to claim 1, characterized in that, The drying mechanism includes a circular plate (3) fixed to the outer wall of the connecting shaft (8) and an annular cavity (18) opened inside the circular plate (3). Multiple air outlets (12) communicating with the annular cavity (18) are evenly opened on the top surface of the circular plate (3). A heating gas assembly is provided on the outer wall of the connecting shaft (8) inside the box (1).

3. The submersible pump surface coating device according to claim 2, characterized in that, The heating gas assembly includes an annular box (21) rotatably mounted on the outer wall of the connecting shaft (8), and the annular box (21) is fixed to the inner top surface of the box body (1); A hot air pump (6) is installed on the bottom surface of the box (1), and the outlet of the hot air pump (6) is connected to the annular box (21) through a duct (7). The annular box (21) and the annular cavity (18) are connected by a connecting cavity.

4. The submersible pump surface coating device according to claim 3, characterized in that, The connecting cavity includes a circular cavity (19) opened inside the connecting shaft (8). The top of the circular cavity (19) is connected to the annular cavity (18) through a first air hole (17), and the circular cavity (19) is connected to the annular box (21) through a second air hole (20).

5. A submersible pump surface coating device according to claim 4, characterized in that, A sealing plate (14) is fixedly attached to the inner bottom surface of the bracket (2), and the sealing plate (14) is located on the side away from the workbench (4).

6. The submersible pump surface coating device according to claim 1, characterized in that, The connector includes a drive gear (15) fixed to the outer wall of the connecting shaft (8), and a driven gear (13) meshing with the drive gear (15) is installed on the outer wall of the short shaft (16).

7. The submersible pump surface coating device according to claim 1, characterized in that, The painting mechanism includes an outer cylinder (31) installed on the top surface of the housing (1), an inner cylinder (34) slidably disposed in the outer cylinder (31), and a support plate (5) fixed to the top of the inner cylinder (34). A rectangular box (28) is slidably disposed on the top surface of the support plate (5). Multiple high-pressure nozzles (35) communicating with the rectangular box (28) are evenly installed on the outer side of the rectangular box (28). The bottom surface of the box (1) is provided with a paint box (10), and a paint pump (33) is installed in the paint box (10). The paint pump (33) has a liquid guide pipe (11) at the paint outlet end. One end of the liquid guide pipe (11) passes through the paint box (10), the box (1), the outer cylinder (31), the inner cylinder (34) and the support plate (5) respectively and is connected to the rectangular box (28).

8. A submersible pump surface coating device according to claim 7, characterized in that, An electric telescopic rod (30) is installed on the bottom surface of the support plate (5), and the fixed end of the electric telescopic rod (30) is fixedly connected to the top surface of the box (1). Electric actuators (29) are symmetrically installed on the top surface of the support plate (5). The movable end of the electric actuator (29) is fixedly connected to the mounting plate (32), and the mounting plate (32) is fixedly connected to the rectangular box (28).

9. A submersible pump surface coating device according to claim 1, characterized in that, The fixing mechanism includes rectangular slots (22) symmetrically opened on the top surface of the workbench (4). A two-way lead screw (23) is rotatably provided in the rectangular slot (22). One end of the two-way lead screw (23) extends through the outer wall of the workbench (4) and is fixedly connected to a handle (27). Threaded sleeves (24) are threadedly connected to the outer walls of both ends of the two-way lead screw (23). The threaded sleeves (24) are slidably disposed with the rectangular slot (22). A connecting plate (25) is fixedly connected to the top of the threaded sleeve (24). An arc-shaped fixing plate (26) is fixedly connected to the outside of the connecting plate (25).

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