Stainless steel surface directional dust removal and electrostatic paint spraying integrated device

Abstract

The invention discloses a stainless steel surface directional dust removal and electrostatic painting integrated device, and relates to the field of stainless steel treatment. Through integrated design, the dust removal and paint spraying procedures are integrated in the same device, the transfer time of materials between different devices and areas is shortened, dust removal and paint spraying treatment of stainless steel pipes is continuously completed in the device, the production efficiency is improved, and the problems that a traditional separated treatment process is tedious and low in efficiency are solved; according to the device, the equipment quantity is reduced, and the equipment investment cost is reduced; meanwhile, due to the integrated design, the working area is reduced, the site lease cost is reduced, in the dust removal process, airflow sprayed out of the air spraying nozzles is matched with rotation of the stainless steel pipe, dust is comprehensively removed, cleaning dead corners are avoided, and the adhesive force of a paint layer is ensured; during paint spraying, the electrostatic paint spraying technology is combined with rotation of the stainless steel pipe, paint is evenly attached, the flatness and quality of a paint layer are improved, and the problems that the paint spraying quality is affected by dust and a traditional air paint spraying paint layer is not uniform are solved.

Description

Technical Field

[0001] The present invention relates to the field of stainless steel treatment, and specifically to an integrated device for directional dust removal and electrostatic painting on the surface of stainless steel. Background Art

[0002] In the manufacturing industry, stainless steel is widely used in many industries such as architectural decoration, kitchenware, machinery manufacturing, aerospace, etc. due to its strong corrosion resistance, high strength, beautiful appearance and durability. With the continuous improvement of the quality and appearance requirements of stainless steel products in various industries, the surface treatment process of stainless steel becomes increasingly crucial. Among them, painting is one of the commonly used surface treatment methods, which can further enhance the anti-corrosion performance of stainless steel and endow it with a rich variety of appearance effects.

[0003] However, effective dust removal treatment on the surface of stainless steel before painting is crucial because dust particles will affect the adhesion and surface flatness of the paint layer, thereby affecting the painting quality. At present, during the stainless steel surface treatment process, dust removal and painting are mostly carried out separately; traditional dust removal methods mainly include mechanical dust removal and blowing dust removal; mainly blowing dust removal is used; blowing dust removal is to blow the dust away from the surface by air and then cooperate with a dust suction device to suck away the dust; in the painting link, air spraying and electrostatic painting technologies are commonly used. Air spraying atomizes the paint through a spray gun and sprays it on the surface of stainless steel. The operation is simple, but the paint utilization rate is low; compared with air spraying, electrostatic painting can improve the paint utilization rate and painting quality. During electrostatic painting, the spray gun is connected to a high-voltage electrostatic generator to obtain a high voltage to ionize the air near the spray gun. The ions attach to the ejected paint particles to make them negatively charged; at the same time, the stainless steel workpiece to be painted is grounded to a zero potential, forming a strong electrostatic field between the spray gun and the workpiece. The negatively charged paint particles are affected by the electric field force and move rapidly towards the surface of the workpiece directionally based on the principle of opposite charges attracting each other. After arriving, they are firmly attached due to electrostatic adsorption and gradually accumulate to form a uniform paint layer. A small amount of excessive paint that is not attached is collected and processed through special equipment, which not only enhances the paint adhesion and paint layer flatness, but also improves the paint utilization rate and reduces environmental pollution.

[0004] However, at present, when treating the surface of stainless steel, dust removal and painting are usually carried out separately, requiring the use of independent equipment and occupying the corresponding work area; this treatment method makes the working area required for the entire stainless steel surface treatment work larger, which not only increases the site rental cost, but also leads to increased equipment investment and reduced resource utilization efficiency; at the same time, the separate treatment process is relatively cumbersome, and the transportation of materials between different equipment and areas is likely to cause time waste and reduce production efficiency; in addition, due to the separation of equipment and operation, it is difficult to achieve overall automatic control, which further affects the continuity and stability of production; in order to solve these problems, it is urgently necessary to propose an integrated device for directional dust removal and electrostatic painting on the surface of stainless steel to optimize the stainless steel surface treatment process. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide an integrated device for directional dust removal and electrostatic painting on the surface of stainless steel to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated device for directional dust removal and electrostatic painting on a stainless steel surface, comprising a device body, which is designed in an inverted T shape as a whole; The device body is provided with a processing chamber including a feeding chamber, a dust removal chamber, an isolation chamber, a paint spraying chamber and a discharging chamber, which is used for dust removal and paint spraying of the stainless steel pipe. The dust removal chamber and the paint spraying chamber are longitudinal chambers, and a paint spraying mechanism is provided in the paint spraying chamber. The processing chamber is provided with a conveying mechanism for conveying the stainless steel pipe, including a sprocket and a chain installed in the processing chamber, and an air guide cover is installed on the outer wall of the chain, a rotating rod is rotatably installed on the air guide cover, a driving fan is fixedly installed on one end of the rotating rod, and a guide plate is rotatably installed on the other end, and a friction wheel is provided at the end of the guide plate for supporting the stainless steel pipe; The device body is provided with a dust removal mechanism, including a bellows located between the dust removal chamber and the paint spray chamber. A blow nozzle connected to the bellows is installed in the dust removal chamber for removing dust from the stainless steel pipe and blowing the drive fan to rotate. The outer wall of the paint spray chamber of the device body is provided with multiple groups of air jets corresponding to the drive fan and connected to the bellows.

[0007] By adopting the above technical scheme, the overall architecture and core functions of the device are clarified, the shape of the device body, the composition of the internal processing chamber, the setting of the conveying mechanism and the dust removal mechanism are stipulated, and the basic framework is built for the entire device, so that the device has the foundation for integrated processing of stainless steel pipes, ensuring that the device can realize directional dust removal and electrostatic painting functions.

[0008] Furthermore, the device body is provided with a feeding port, a discharging port and a return cavity; The feed port and the discharge port are respectively located at the top of both sides of the device body, the return cavity is located at the bottom of the device body and is connected with the feed port and the discharge port, the feed port is connected with the feed cavity, and the discharge port is connected with the discharge cavity.

[0009] By adopting the above technical solution, the positions and connection relationships of the feed port, the discharge port and the return cavity are determined, and the paths of the stainless steel pipes entering and exiting the device are standardized.

[0010] Furthermore, the positions of the dust removal chamber and the paint spray chamber are symmetrical to each other, and an isolation chamber is passed between the dust removal chamber and the paint spray chamber, and two groups of air curtains installed on the top of the device body are symmetrically arranged in the isolation chamber. The two groups of air curtains are respectively arranged at the connection between the isolation chamber and the dust removal chamber and at the connection between the isolation chamber and the paint spray chamber, so as to further separate the dust removal chamber and the paint spray chamber.

[0011] By adopting the above technical solution, the dust in the dust removal chamber can be effectively prevented from entering the paint spraying chamber, and the paint mist can be prevented from spreading to the dust removal area, ensuring that the two key processing links do not interfere with each other, improving the processing effect and product quality, ensuring that the final painting effect is not affected by dust, and enhancing the stability and reliability of the device.

[0012] Furthermore, two groups of chains are symmetrically installed in the device body, and the adjacent outer walls of the two groups of chains are provided with multiple groups of air guide covers, and the distance between the air guide covers on the outer walls of the two groups of chains is greater than the length of the stainless steel pipe.

[0013] By adopting the above technical solution, it is ensured that the stainless steel pipe can pass through each processing chamber smoothly, providing a stable transportation basis for subsequent dust removal and painting operations, and improving the continuity and safety of the production process.

[0014] Furthermore, the driving fan is located in the air guide cover, and the air guide cover is U-shaped, and the longitudinal section and cross section of the driving fan blades are both arc-shaped.

[0015] By adopting the above technical solution, the flow path of the airflow in the device is optimized, and the force of the airflow on the driving fan is increased, so that the driving fan can more efficiently drive the rotating rod to rotate, and then drive the stainless steel pipe to rotate, thereby enhancing the power of the stainless steel pipe to rotate during dust removal and painting, which helps to improve the uniformity of the processing effect.

[0016] Furthermore, the guide plates are installed in multiple groups at equal angles on the end of the rotating rod, and the rotating rod is provided with elastic members corresponding to the guide plates.

[0017] By adopting the above technical solution, the guide plate can better adapt to stainless steel pipes of different diameters. While supporting the stainless steel pipe, the elastic parts ensure that the stainless steel pipe maintains a stable position during transportation and processing, thereby improving the adaptability and processing accuracy of the device to stainless steel pipes of different specifications.

[0018] Furthermore, multiple groups of air nozzles are installed at equal intervals on the inner wall of the dust removal chamber, and the air nozzles are designed to be tilted downward as a whole. The dust removal chamber and the inside of the bellows are connected through an air guide port opened on the outer wall of the device body, and the opening of the air guide port is larger than the outlet of the air nozzle.

[0019] By adopting the above technical solution, it is ensured that the airflow ejected from the nozzle can accurately act on the surface of the stainless steel pipe, thereby enhancing the dust removal effect. At the same time, the airflow is used to drive the driving fan to rotate, thereby realizing the rotation of the stainless steel pipe, making the dust removal operation more efficient and comprehensive, and avoiding dust removal blind spots.

[0020] Furthermore, the air jets are provided in a plurality of groups at equal intervals on the outer wall of the device body, and the cross-section of the air jets is designed to be inclined upward, and the opening positions of the air jets are staggered from the installation positions of the paint spraying mechanism.

[0021] By adopting the above technical solution, the airflow ejected from the air jet can effectively drive the driving fan to rotate, driving the stainless steel pipe to rotate during paint spraying, while avoiding the interference of the air jet on the paint spraying mechanism, ensuring that the paint can be evenly adhered to the surface of the stainless steel pipe, thereby improving the quality and efficiency of paint spraying.

[0022] Furthermore, two groups of partitions are symmetrically installed in the paint spray chamber, each group of partitions includes two partitions, and the partitions are all located on one side of the air jet, and the width between the two groups of partitions is greater than the length of the stainless steel pipe.

[0023] By adopting the above technical solution, the airflow environment in the paint spraying chamber is further stabilized, thereby preventing the airflow ejected from the air jet outlet from having an adverse effect on the paint spraying process.

[0024] Furthermore, the dust removal mechanism also includes a blower and an exhaust fan, the blower is installed on the outer wall of the bellows and communicates with the inside of the bellows, and the exhaust fan is installed on the outer wall of the device body and communicates with the dust removal chamber.

[0025] By adopting the above technical solution, the blower provides high-pressure airflow to the air nozzle to achieve the dust removal function, and the exhaust fan removes the dust in time to maintain a clean environment in the dust removal chamber. The two work together to improve the dust removal efficiency, ensure that the subsequent painting process is not affected by dust, and improve the processing performance of the entire device.

[0026] In summary, the present invention mainly has the following beneficial effects: The present invention integrates the dust removal and painting processes in the same device through an integrated design, thereby reducing the transportation time of materials between different equipment and areas. The stainless steel pipe continuously completes the dust removal and painting processes in the device, which improves production efficiency and solves the problem of complicated and inefficient traditional separate processing processes. The device reduces the number of equipment and reduces the equipment investment cost. At the same time, the integrated design reduces the working area and reduces the site rental cost. During the dust removal process, the airflow sprayed from the air nozzle cooperates with the rotation of the stainless steel pipe to comprehensively remove dust, avoid cleaning dead corners, and ensure the adhesion of the paint layer. During painting, the electrostatic spraying technology is combined with the rotation of the stainless steel pipe to make the paint adhere evenly, improve the flatness and quality of the paint layer, and solve the problem of dust affecting the quality of paint spraying and the uneven paint layer of traditional air spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure after side section of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure inside the present invention; Figure 4 It is a schematic diagram of the planar structure of the present invention after side section; Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention after partial cutaway; Figure 6 For the present invention Figure 5 Schematic diagram of the three-dimensional structure from another perspective; Figure 7 It is a schematic diagram of a three-dimensional structure of a part of the chain of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the rotating rod and the stainless steel pipe after partial sectioning of the present invention.

[0028] In the figure: 1. device body; 10. feeding port; 11. feeding chamber; 12. dust removal chamber; 120. isolation chamber; 13. paint spraying chamber; 14. discharging chamber; 15. discharging port; 16. return chamber; 2. sprocket; 20. stainless steel pipe; 21. chain; 22. air guide hood; 23. rotating rod; 230. driving fan; 24. guide plate; 25. friction wheel; 3. air nozzle; 30. bellows; 31. air guide port; 32. air inlet; 33. blower; 34. air jet; 4. paint spraying box; 41. paint spraying gun; 5. air curtain machine; 6. exhaust fan; 7. partition. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] The present invention focuses on solving many problems existing in the separate operations of dust removal and painting in the existing stainless steel surface treatment process, and designs a device integrating directional dust removal and electrostatic painting functions, which greatly optimizes the stainless steel surface treatment process.

[0031] The following describes an embodiment of the present invention based on its overall structure.

[0032] Integrated device for directional dust removal and electrostatic painting on stainless steel surface, such as Figure 1 - Figure 8 As shown, the device body 1 is designed in an inverted T shape as a whole, and a processing chamber is provided inside, which mainly includes a feeding chamber 11, a dust removal chamber 12, an isolation chamber 120, a paint spraying chamber 13 and a discharge chamber 14; These chambers cooperate with each other to provide a coherent working space for dust removal and painting of the stainless steel tube 20; wherein the feed chamber 11 is used to guide the stainless steel tube 20 into the device; the dust removal chamber 12 is responsible for removing dust from the surface of the stainless steel tube 20; the isolation chamber 120 separates the dust removal chamber 12 and the painting chamber 13 to prevent dust from entering the painting area; a painting mechanism is provided in the painting chamber 13 for electrostatically painting the stainless steel tube 20; and the discharge chamber 14 is used to output the stainless steel tube 20 after processing; The invention also discloses a conveying mechanism; The conveying mechanism is mainly composed of a sprocket 2, a chain 21, an air guide cover 22, a rotating rod 23, a guide plate 24 and a friction wheel 25; the sprocket 2 is rotatably installed in the processing chamber and is externally connected to a driver. The sprocket 2 is provided with a chain 21 installed in the processing chamber and matched with the sprocket 2. The air guide cover 22 on the outer wall of the chain 21 plays a role in protecting and guiding the airflow; the rotating rod 23 is rotatably installed on the air guide cover 22, and the driving fan 230 at one end can drive the rotating rod 23 to rotate under the action of the airflow. The guide plate 24 at the other end is used to support the stainless steel pipe 20. The friction wheel 25 at the end of the guide plate 24 contacts the inner wall of the stainless steel pipe 20. When the rotating rod 23 rotates, the friction wheel 25 drives the stainless steel pipe 20 to rotate, which not only facilitates the transportation of the stainless steel pipe 20 in the device, but also enables it to be better treated during the dust removal and painting process, ensuring the comprehensiveness and uniformity of the treatment; The invention also discloses a dust removal mechanism; The dust removal mechanism includes a bellows 30, an air nozzle 3, a blower 33 and an exhaust fan 6; the bellows 30 is located between the dust removal chamber 12 and the paint spraying chamber 13, the blower 33 is installed on the outer wall of the bellows 30, and is connected to the bellows 30 through an air inlet 32 ​​opened on the outer wall of the bellows 30, and the blower 33 pressurizes air and sends it into the bellows 30; the air nozzle 3 is installed in the dust removal chamber 12 and is connected to the bellows 30, and is designed to be tilted downward and distributed at equal intervals; the high-speed airflow ejected by the air nozzle 3 directly acts on the surface of the stainless steel pipe 20 to blow away the dust; on the other hand, it blows toward the driving fan 230, driving the rotating rod 23 to rotate, thereby rotating the stainless steel pipe 20 to enhance the dust removal effect; the exhaust fan 6 is installed on the outer wall of the device body 1 and is connected to the dust removal chamber 12, so as to promptly remove the blown-away dust to avoid dust residue in the device, thereby ensuring a clean environment for subsequent processing; The invention also discloses a paint spraying mechanism; The paint spraying mechanism in the paint spraying chamber 13 is mainly composed of a paint spraying box 4 and a paint spraying gun 41; The paint spray gun 41 is connected to a high-voltage electrostatic generator, and the paint spray box 4 provides paint for the paint spray gun 41. When spraying paint, the paint spray gun 41 sprays negatively charged paint particles, and a strong electrostatic field is formed between the grounded stainless steel tube 20 with zero potential and the paint spray gun 41, so that the paint particles are directionally adsorbed to the surface of the stainless steel tube 20. At the same time, the outer wall of the paint spray chamber 13 of the device body 1 is provided with a plurality of groups of air jets 34 corresponding to the driving fan 230 and connected to the bellows 30. The air jets 34 are tilted upward and distributed at equal intervals. The airflow ejected therefrom blows the driving fan 230 to rotate, and drives the stainless steel tube 20 to rotate through the rotating rod 23 and the friction wheel 25, so as to ensure that the paint is evenly attached to the surface of the stainless steel tube 20 and improve the quality of spraying paint. Exemplarily, two groups of air curtain machines 5 are symmetrically arranged in the isolation chamber 120, respectively located at the connection between the isolation chamber 120 and the dust removal chamber 12 and the paint spraying chamber 13; the air curtain formed by the air curtain machine 5 effectively blocks dust from entering the paint spraying chamber 13 from the feed chamber 11, and prevents the paint mist in the paint spraying chamber 13 from diffusing to the feed chamber 11, thereby ensuring the independence of each processing area and avoiding mutual interference; In some examples, two groups of partitions 7 are symmetrically installed in the paint spraying chamber 13, each group includes two partitions 7, which are located on one side of the air jet 34, and the width between the two groups of partitions 7 is greater than the length of the stainless steel tube 20; the partition 7 further separates the paint spraying chamber 13, ensures the stability of the paint spraying space and the air jet position of the air jet 34, reduces the interference of the air jet on the paint spraying process, and ensures the quality of the paint spraying; The present invention also discloses a feeding port 10, a discharging port 15 and a return cavity 16; The feed port 10 and the discharge port 15 are respectively located at the top of both sides of the device body 1 for the stainless steel pipe 20 to enter and exit; the return cavity 16 is located at the bottom of the device body 1 and communicates with the feed port 10 and the discharge port 15 .

[0033] The working principle of the integrated device for directional dust removal and electrostatic painting on the stainless steel surface is carried out around the feeding, dust removal, painting, and discharging of the stainless steel tube 20. The various components work together to achieve efficient surface treatment, as follows: The first part is feeding and conveying: the stainless steel pipe 20 to be processed is placed into the device body 1 from the feeding port 10; during the placement process, one end of the stainless steel pipe 20 is first obliquely inserted into the rotating rod 23 on one side, and as the stainless steel pipe 20 slides toward the rotating rod 23, its inner wall will squeeze the guide plate 24; the guide plate 24 has an elastic part, and its angle will change when it is under pressure. At the same time, the inner wall of the stainless steel pipe 20 slides along the friction wheel 25, and the friction wheel 25 can effectively reduce the friction resistance of the stainless steel pipe 20 when it slides, so that it moves more smoothly; when the stainless steel pipe 20 continues to slide in the direction of the air guide cover 22 until the end is in contact with the outer wall of the air guide cover 22, at this time, the other end of the stainless steel pipe 20 is staggered from the position of the other set of rotating rods 23, and then the stainless steel pipe 20 is slid toward the direction of the other set of rotating rods 23, so that it is sleeved on the two sets of rotating rods 23; at this time, the multiple sets of guide plates 24 on the two sets of rotating rods 23 will support and limit the two ends of the stainless steel pipe 20 to ensure the stability of the stainless steel pipe 20 during the subsequent movement; The second part is the dust removal process: the external driver of the sprocket 2 is started, and the chain 21 starts to drive the air guide cover 22 to move; the air guide cover 22 drives the stainless steel pipe 20 to move into the device body 1 through the rotating rod 23, the guide plate 24 and the friction wheel 25, and the stainless steel pipe 20 gradually passes through the feeding chamber 11 and enters the dust removal chamber 12; In the dust removal chamber 12, the blower 33 of the bellows 30 sucks in and pressurizes air through the air inlet 32, and the pressurized air enters the air nozzle 3 through the air guide port 31; the high-speed airflow ejected from the air nozzle 3 directly acts on the surface of the stainless steel pipe 20 on the one hand to blow away the attached dust, and on the other hand blows to the driving fan 230; the driving fan 230 drives the rotating rod 23 to rotate under the impetus of the high-speed airflow, and then the friction wheel 25 at the end of the guide plate 24 drives the stainless steel pipe 20 to rotate; the rotation of the stainless steel pipe 20 enables the airflow ejected from the air nozzle 3 to act on its surface more comprehensively, avoiding cleaning dead corners and ensuring the cleaning effect; at the same time, the exhaust fan 6 cooperates to extract the blown away dust to avoid dust residue in the device affecting subsequent processing. This dust removal method utilizes the kinetic energy of the air flow and the rotation of the object to achieve an efficient dust removal effect. Compared with the traditional air blowing dust removal method, it not only improves the dust removal efficiency, but also can better clean the dust on the surface of the stainless steel pipe, solving the problem that dust affects the adhesion of the paint layer and the surface flatness; The third part is the electrostatic painting process: the stainless steel tube 20 after dust removal enters the paint spraying chamber 13 through the isolation chamber 120; in the paint spraying chamber 13, the paint in the paint spraying box 4 is sprayed out through the paint spraying gun 41; the paint spraying gun 41 is connected to a high-voltage electrostatic generator to make the sprayed paint particles negatively charged; and the stainless steel tube 20 to be painted is grounded at zero potential, and a strong electrostatic field is formed between the paint spraying gun 41 and the stainless steel tube 20; under the action of the electrostatic field, the negatively charged paint particles move quickly and directionally toward the surface of the stainless steel tube 20 based on the principle of opposites attract, and firmly adhere to its surface; at the same time, multiple groups of air jets 34 blow air to the driving fan 230, and the driving fan 230 obtains power to rotate, and drives the stainless steel tube 20 to rotate through the rotating rod 23 and the friction wheel 25; the rotation of the stainless steel tube 20 ensures that the paint can be evenly attached to its surface, avoiding the situation where the paint is too thick or too thin locally, forming a uniform paint layer, and improving the quality of painting; The fourth part, discharging: the stainless steel pipe 20 after painting passes through the painting chamber 13 into the discharging chamber 14, and then runs through the discharging chamber 14 to the discharging port 15; at the position of the discharging port 15, the treated stainless steel pipe 20 can be removed to complete the entire treatment process; The fifth part is other auxiliary functions: the air curtain machine 5 provided in the device can form an air curtain at the connection position between the feed chamber 11 and the paint spray chamber 13 and the isolation chamber 120, which plays the role of isolating different areas, preventing dust from entering the paint spray chamber 13 from the feed chamber 11, and preventing the paint mist in the paint spray chamber 13 from diffusing to the feed chamber 11; the partition 7 further separates the paint spray chamber 13, ensuring the independence and stability of the paint spray space in the paint spray chamber 13 and the jet position of the jet port 34, and reducing the probability of mutual interference. The design of these auxiliary functions makes the working environment of the whole device more stable, and improves the processing quality and efficiency; The integrated device integrates dust removal and painting functions into one device, greatly reducing the equipment's footprint and reducing site rental costs. It also facilitates overall automated control, improves production continuity and stability, and effectively solves the problems of high equipment investment and low resource utilization efficiency in traditional processing methods.

[0034] Although an embodiment of the present invention has been shown and described, this specific embodiment is only an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. Integrated device for directional dust removal and electrostatic painting on stainless steel surface, characterized in that: It comprises a device body (1), which is designed in an inverted T shape as a whole; The device body (1) is provided with a processing chamber comprising a feeding chamber (11), a dust removal chamber (12), an isolation chamber (120), a paint spraying chamber (13) and a discharging chamber (14), which is used for performing dust removal and paint spraying on the stainless steel pipe (20); the dust removal chamber (12) and the paint spraying chamber (13) are longitudinal chambers, and a paint spraying mechanism is provided in the paint spraying chamber (13); A conveying mechanism for conveying the stainless steel pipe (20) is provided in the processing chamber, comprising a sprocket (2) and a chain (21) installed in the processing chamber, and an air guide cover (22) is installed on the outer wall of the chain (21), a rotating rod (23) is rotatably installed on the air guide cover (22), a driving fan (230) is fixedly installed on one end of the rotating rod (23), and a guide plate (24) is rotatably installed on the other end, and a friction wheel (25) is provided at the end of the guide plate (24) for supporting the stainless steel pipe (20); The device body (1) is provided with a dust removal mechanism, comprising a bellows (30) located between the dust removal chamber (12) and the paint spray chamber (13); an air nozzle (3) connected to the bellows (30) is installed in the dust removal chamber (12) for removing dust from the stainless steel pipe (20) and blowing the driving fan (230) to rotate; and a plurality of air jets (34) corresponding to the driving fan (230) and connected to the bellows (30) are provided on the outer wall of the paint spray chamber (13) of the device body (1).

2. The integrated device for directional dust removal and electrostatic painting on stainless steel surface according to claim 1 is characterized in that: The device body (1) is provided with a feeding port (10), a discharging port (15) and a return cavity (16); The feed port (10) and the discharge port (15) are respectively located at the top of both sides of the device body (1); the return cavity (16) is located in the bottom of the device body (1) and is connected to the feed port (10) and the discharge port (15); the feed port (10) is connected to the feed cavity (11); and the discharge port (15) is connected to the discharge cavity (14).

3. The integrated device for directional dust removal and electrostatic painting on stainless steel surface according to claim 1 is characterized in that: The dust removal chamber (12) and the paint spray chamber (13) are arranged symmetrically in their respective positions, and an isolation chamber (120) is provided between the dust removal chamber (12) and the paint spray chamber (13), and two groups of air curtain machines (5) mounted on the top of the device body (1) are symmetrically arranged in the isolation chamber (120), and the two groups of air curtain machines (5) are respectively arranged at the connection between the isolation chamber (120) and the dust removal chamber (12) and at the connection between the isolation chamber (120) and the paint spray chamber (13), so as to further separate the dust removal chamber (12) and the paint spray chamber (13).

4. The integrated device for directional dust removal and electrostatic painting on stainless steel surface according to claim 1 is characterized in that: Two groups of chains (21) are symmetrically installed in the device body (1), and adjacent outer walls of the two groups of chains (21) are provided with multiple groups of air guide covers (22), and the spacing between the air guide covers (22) on the outer walls of the two groups of chains (21) is greater than the length of the stainless steel pipe (20).

5. The integrated device for directional dust removal and electrostatic painting on stainless steel surface according to claim 1 is characterized in that: The driving fan (230) is located in the air guide cover (22), and the air guide cover (22) is designed to be U-shaped, and the longitudinal section and cross section of the blades of the driving fan (230) are both designed to be arc-shaped.

6. The integrated device for directional dust removal and electrostatic painting on stainless steel surface according to claim 1 is characterized in that: The guide plates (24) are installed in multiple groups at equal angles on the end of the rotating rod (23), and the rotating rod (23) is provided with elastic parts corresponding to the guide plates (24).

7. The integrated device for directional dust removal and electrostatic painting on stainless steel surface according to claim 1 is characterized in that: A plurality of groups of air nozzles (3) are installed at equal intervals on the inner wall of the dust removal chamber (12), and the air nozzles (3) are designed to be tilted downward as a whole. The dust removal chamber (12) and the interior of the bellows (30) are connected via an air guide port (31) provided on the outer wall of the device body (1), and the opening of the air guide port (31) is larger than the outlet of the air nozzle (3).

8. The integrated device for directional dust removal and electrostatic painting on stainless steel surface according to claim 1 is characterized in that: The air jets (34) are provided in a plurality of groups at equal intervals on the outer wall of the device body (1), and the cross-section of the air jets (34) is designed to be inclined upward, and the opening position of the air jets (34) is staggered from the installation position of the paint spraying mechanism.

9. The integrated device for directional dust removal and electrostatic painting on stainless steel surface according to claim 1, characterized in that: Two groups of partitions (7) are symmetrically installed in the paint spray chamber (13), each group of partitions (7) includes two partitions (7), and the partitions (7) are both located on one side of the air jet (34), and the width between the two groups of partitions (7) is greater than the length of the stainless steel pipe (20).

10. The integrated device for directional dust removal and electrostatic painting on stainless steel surface according to claim 1, characterized in that: The dust removal mechanism further comprises a blower (33) and an exhaust fan (6); the blower (33) is mounted on the outer wall of the bellows (30) and communicates with the interior of the bellows (30); the exhaust fan (6) is mounted on the outer wall of the device body (1) and communicates with the dust removal chamber (12).

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