An automatic painting robot and a method of using the same

Abstract

This invention discloses an automatic spraying robot and its usage method, relating to the field of spraying robots. It includes a base and a side plate fixedly installed on the upper left side of the base. A servo motor is fixedly installed on the upper end of the side plate, and a threaded rod is fixedly installed on the output end of the servo motor. A lifting platform is threaded onto the surface of the threaded rod, and a mechanical sprayer is provided on the upper right side of the lifting platform. After spraying the workpiece, excess spraying material falls through a drain hole at the bottom of the platform, allowing for material recycling, saving resources, avoiding material waste, and reducing operating costs. The robot can filter the spraying material inside the collection chamber, and the nested filter plate allows for easy disassembly and cleaning while filtering impurities from the spraying material, improving the device's practicality.

Description

Technical Field

[0001] This invention relates to the field of spray painting robot technology, specifically to an automatic spray painting robot and its usage method. Background Technology

[0002] Automated painting robots are automated equipment used for coating and spraying surface treatments, and are widely used in manufacturing, automotive, and furniture production. They can efficiently and evenly coat various materials, such as paints, varnishes, and adhesives.

[0003] In the existing technology, if there are impurities on the surface of the workpiece to be sprayed when the automatic spraying robot is spraying, it is easy to cause poor spraying effect on the workpiece surface. At the same time, the material stored in the storage box is prone to solidification and blockage during use, which is not conducive to the user's use.

[0004] To overcome the aforementioned shortcomings, a prior art Chinese patent application (publication number CN115007359A) discloses an automatic painting robot, including a base, a painting platform, a painting device, and a robotic arm. The painting platform is mounted on the base to support and fix the ornament, thus facilitating painting operations. The painting device is connected to the base via the robotic arm. The automatic painting robot carries the ornament to be painted on the painting platform; the robotic arm drives the painting device to move relative to the painting platform, thereby enabling the painting device to perform painting operations on the ornament. The automatic painting robot performs mechanized painting operations, resulting in high automated production efficiency; the mechanized painting operation has high precision, and the equipment can perform mass painting operations on ornaments, improving the yield and quality of painted ornaments. In addition, a dust cover is provided on the base, and an exhaust hood is connected to one side of the dust cover to prevent dust and other impurities from interfering with the automatic painting operation of the ornaments, further improving the quality of the finished ornaments.

[0005] To overcome the above shortcomings, the prior art (publication number CN117324168A) of the Chinese patent application discloses a fully automatic spraying robot. A rotating rod is fixedly connected between two rollers, and a cam is fixedly connected to the rotating rod. A storage tank for storing paint is fixedly connected to the top of the movable plate. When the movable plate moves on the track, the rotating rod drives the rotation of the cam as the power output. With the help of the interlocking mechanism, the stirring ring can move up and down in the storage tank at the same time, and the stirring rod can rotate in the storage tank. At the same time, horizontal and vertical forces are generated inside the storage tank, which makes the paint inside the storage tank more fully and thoroughly stirred, which is beneficial to the mixing of the paint inside the storage tank. At the same time, it can also effectively prevent the paint from solidifying or clumping inside the storage tank.

[0006] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation, such as the inconvenience of adjusting the angle of the automatic spraying robot during spraying, and the tendency for the spraying material to drip after use, resulting in material waste and inconvenience to users. Summary of the Invention

[0007] The purpose of this invention is to provide an automatic spraying robot and its usage method, in order to solve the problems mentioned in the background art, such as the inconvenience of adjusting the angle of the automatic spraying robot during spraying, and the easy dripping of spraying material after use, which causes material waste and is not conducive to the use by the user.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an automatic spraying robot, comprising a base and a side plate fixedly installed on the upper left side of the base, wherein a servo motor is fixedly installed on the upper end of the side plate, and a threaded rod is fixedly installed on the output end of the servo motor, and a lifting platform is threadedly installed on the surface of the threaded rod, wherein a mechanical sprayer is provided on the upper right side of the lifting platform, and a placement platform is fixedly installed on the upper right side of the base.

[0009] A storage box is fixedly installed at the rear end of the side plate, and an anti-solidification mechanism is provided inside the storage box. The anti-solidification mechanism is equipped with a stirring rod, and the upper end of the stirring rod is rotatably installed with the upper end of the storage box.

[0010] A cavity is fixedly installed at the front end of the side plate, and an automatic cleaning and impurity removal mechanism is provided inside the cavity. The automatic cleaning and impurity removal mechanism is provided with an air jet, and the lower end of the air jet is fixedly installed on the upper surface of the front end of the placement platform.

[0011] The upper end of the base is provided with a collection chamber, and the inside of the collection chamber is provided with a collection and recycling mechanism. The collection and recycling mechanism is provided with a leakage hole, which is located at the bottom of the placement platform.

[0012] Furthermore, the threaded rod is rotatably installed inside the side plate, and a limit rod is fixedly installed inside the side plate, with the middle end of the limit rod penetrating the lifting platform.

[0013] Furthermore, the anti-coagulation mechanism includes a rack installed on the upper end of the threaded rod through gear engagement, and the rear end of the rack is installed on the upper end of the stirring rod through gear engagement. A flow guide hose is installed through the lower end of the storage tank, and the end of the flow guide hose is fixedly installed on the upper end of the mechanical sprayer. A pressure pump is provided on the outside of the flow guide hose, and the front end of the pressure pump is fixedly installed on the rear end of the side plate.

[0014] Furthermore, a feeding port is fixedly installed on the left outer wall of the storage box, and the feeding port is connected to the storage box through a one-way feed port, and a one-way valve is installed inside the one-way feed port.

[0015] Furthermore, the automatic cleaning and impurity removal mechanism includes a drive rod rotatably mounted on the front end of the side plate via a limiting sleeve, and the upper end of the drive rod meshes with the front end of the rack via a gear. A first bevel gear is fixedly mounted on the lower end of the drive rod, and a second bevel gear is meshed on the lower end of the first bevel gear. The second bevel gear is located at the middle end of the disc rod, and the rear end of the disc rod is rotatably mounted on the front end of the side plate.

[0016] Furthermore, the front end of the disc rod is fitted with a grooved push rod via a latch, and a sealing plate is fixedly installed at the lower end of the grooved push rod. The outer side of the sealing plate is fitted against the inner wall of the cavity, and an air guide pipe is installed through the lower end of the cavity. The right end of the air guide pipe is connected to the air jet nozzle, and the output end of the air jet nozzle is aligned with the inside of the placement platform.

[0017] Furthermore, a one-way air inlet is installed through the lower left side of the cavity, and a one-way valve is installed inside the one-way air inlet.

[0018] Furthermore, the collection and recycling mechanism includes a recycling pipe installed through the left side of the rear end of the collection bin, and the left end of the recycling pipe is installed through the inside of the feeding port. A liquid pump is provided in the middle of the recycling pipe, and the front end of the liquid pump is fixedly installed at the rear end of the base.

[0019] Furthermore, the upper end of the collection chamber is provided with an opening, and the leakage hole is positioned corresponding to the upper opening of the collection chamber, and a filter plate is nested at the rear end of the collection chamber.

[0020] Furthermore, a method for using an automated painting robot specifically includes the following steps:

[0021] S1: When in use, the workpiece to be sprayed is placed inside the placement platform on the top of the base. At this time, the servo motor is started, and the start of the servo motor drives the threaded rod to rotate, which can stir the spraying material inside the storage box to prevent solidification. When spraying, the spraying is carried out through the spray nozzle on the right side of the mechanical sprayer, which can ensure the spraying effect and avoid poor spraying effect after the spraying material solidifies.

[0022] S2: As the threaded rod rotates, the drive rod rotates under the limit of the limiting sleeve at the front end of the side plate, driven by the gear at the front end of the rack. The rotation of the drive rod can be used repeatedly through the meshing of the first bevel gear and the second bevel gear, which can achieve the effect of automatic air jet removal and avoid the impurities on the surface of the workpiece from affecting the spraying effect, and can further improve the quality of spraying.

[0023] S3: After spraying the workpiece, excess spray material falls through the drain hole at the bottom of the platform. The falling spray material falls into the collection chamber through the opening at the top of the collection chamber, thus enabling the spray material to be recycled, saving resources, avoiding material waste, and reducing the cost of using the device. In addition, the nested design of the filter plate allows for easy disassembly and cleaning while filtering impurities inside the spray material, improving the practicality of the device.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. In use, the workpiece to be sprayed is placed inside the placement platform on the upper part of the base. At this time, the servo motor is started to facilitate the mechanical sprayer to spray, improve the controllable angle, enable the mechanical sprayer to spray from multiple angles, and achieve more comprehensive spraying, thereby improving the spraying diversity of the device.

[0026] Furthermore, when spraying is required, the spraying material is fed into the storage box through the one-way feed port on the right side of the feeding port. When the threaded rod rotates, the material is sprayed through the spray nozzle on the right side of the mechanical sprayer. This ensures the spraying effect and avoids poor spraying results after the spraying material solidifies.

[0027] 2. As the threaded rod rotates, driven by the gear at the front end of the rack, the drive rod rotates under the limit sleeve at the front end of the side plate. The rotation of the drive rod causes the air nozzle to blow air into the workpiece placed inside the platform in advance. This air can be recycled and can achieve the effect of automatic air jet removal, preventing impurities on the surface of the workpiece from affecting the spraying effect and further improving the quality of the spraying.

[0028] 3. After the workpiece is sprayed, the excess spray material falls through the drain hole at the bottom of the platform. The falling spray material falls into the collection bin through the opening at the top of the collection bin, so that the spray material can be recycled, saving resources, avoiding material waste, and reducing the cost of using the device.

[0029] Furthermore, a filter plate is installed inside the collection chamber to filter the sprayed material inside the collection chamber. The nested design of the filter plate allows for easy assembly and disassembly. While filtering impurities inside the sprayed material, it can also be easily disassembled for cleaning, improving the practicality of the device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the left-side stereoscopic structure of the present invention;

[0032] Figure 3 This is a rear cross-sectional perspective view of the storage box of the present invention.

[0033] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the rack of the present invention;

[0035] Figure 6 This is a front sectional three-dimensional structural diagram of the cavity chamber of the present invention;

[0036] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0037] Figure 8 This is a three-dimensional structural diagram of the automatic cleaning and impurity removal mechanism of the present invention;

[0038] Figure 9 This is a schematic diagram of the overall rear-view three-dimensional structure of the present invention;

[0039] Figure 10 This is a cross-sectional perspective view of the three-dimensional structure of the collection chamber of the present invention.

[0040] In the diagram: 1. Base; 2. Side plate; 3. Servo motor; 4. Threaded rod; 5. Lifting platform; 6. Mechanical sprayer; 7. Limiting rod; 8. Rack; 9. Stirring rod; 10. Storage tank; 11. Feeding port; 12. One-way feed port; 13. Guide hose; 14. Pressure pump; 15. Placement platform; 16. Drive rod; 17. First bevel gear; 18. Second bevel gear; 19. Disc rod; 20. Pulley; 21. Groove push rod; 22. Sealing plate; 23. Cavity chamber; 24. Air guide pipe; 25. Air jet nozzle; 26. One-way air inlet; 27. Collection chamber; 28. Recovery pipe; 29. ​​Liquid pump; 30. Filter plate; 31. Leakage hole. Detailed Implementation

[0041] 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.

[0042] Example 1:

[0043] like Figures 1-5The technical solution shown is an automatic spraying robot. To solve the problems of inconvenient adjustment of the spraying angle and easy solidification of the sprayed material, the following is disclosed: a base 1 and a side plate 2 fixedly installed on the upper left side of the base 1. A servo motor 3 is fixedly installed on the upper end of the side plate 2, and a threaded rod 4 is fixedly installed on the output end of the servo motor 3. A lifting platform 5 is threadedly installed on the surface of the threaded rod 4. A mechanical sprayer 6 is provided on the upper right side of the lifting platform 5. A placement platform 15 is fixedly installed on the upper right side of the base 1. A storage box 10 is fixedly installed on the rear end of the side plate 2. An anti-solidification mechanism is provided inside the storage box 10, and the anti-solidification mechanism is provided with a stirring rod 9. The upper end of the stirring rod 9 is rotatably installed with the upper end of the storage box 10. The threaded rod 4 rotates... The device is installed inside the side plate 2, and a limit rod 7 is fixedly installed inside the side plate 2. The middle end of the limit rod 7 passes through the lifting platform 5. The anti-solidification mechanism includes a rack 8 installed on the upper end of the threaded rod 4 through gear meshing. The rear end of the rack 8 is installed on the upper end of the stirring rod 9 through gear meshing. A flow guide hose 13 is installed through the lower end of the storage tank 10. The end of the flow guide hose 13 is fixedly installed on the upper end of the mechanical sprayer 6. A pressure pump 14 is provided on the outside of the flow guide hose 13. The front end of the pressure pump 14 is fixedly installed on the rear end of the side plate 2. A feeding port 11 is fixedly installed on the left outer wall of the storage tank 10. The feeding port 11 and the storage tank 10 are connected through a one-way feeding port 12. A one-way valve is provided inside the one-way feeding port 12.

[0044] In this embodiment, during use, the workpiece to be sprayed is placed inside the placement platform 15 on the upper end of the base 1. Then, the servo motor 3 is activated, causing the threaded rod 4 to rotate. As the threaded rod 4 rotates, the lifting platform 5 moves up and down under the limit of the limiting rod 7. This movement of the lifting platform 5 facilitates spraying by the mechanical sprayer 6, increasing the controllable angle and enabling multi-angle spraying. This allows for more comprehensive spraying and improves the spraying versatility of the device. Simultaneously, when spraying is required, the spraying material is... The one-way feed port 12 at the right end of the feeding port 11 is used to feed the material into the storage tank 10. When the threaded rod 4 rotates, the upper surface of the threaded rod 4 drives the rack 8 to move through the gear. The movement of the rack 8 drives the stirring rod 9 to rotate inside the storage tank 10 through the gear. This can stir the spraying material inside the storage tank 10 to prevent solidification. When spraying, the spraying material is drawn through the guide hose 13 and the pressure pump 14 installed inside it and sent into the mechanical sprayer 6. The material is sprayed through the spray nozzle on the right side of the mechanical sprayer 6. This can ensure the spraying effect and avoid poor spraying effect after the spraying material solidifies.

[0045] Example 2:

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The technical solution shown, based on Embodiment 1, discloses the following to address the problem that impurities easily affect the coating quality of the workpiece: a cavity chamber 23 is fixedly installed at the front end of the side plate 2, and an automatic cleaning and impurity removal mechanism is provided inside the cavity chamber 23. This automatic cleaning and impurity removal mechanism is equipped with an air jet nozzle 25, and the lower end of the air jet nozzle 25 is fixedly installed on the upper surface of the front end of the placement platform 15. The automatic cleaning and impurity removal mechanism includes a drive rod 16 rotatably mounted at the front end of the side plate 2 via a limiting sleeve. The upper end of the drive rod 16 meshes with the front end of a rack 8 via a gear, and the lower end of the drive rod 16 is fixedly installed with a first bevel gear 17. The second bevel gear 18 is installed at the middle end of the disc rod 19. The rear end of the disc rod 19 is rotatably installed at the front end of the side plate 2. The front end of the disc rod 19 is fitted with a grooved push rod 21 through a pin 20. A sealing plate 22 is fixedly installed at the lower end of the grooved push rod 21. The outer side of the sealing plate 22 is fitted against the inner wall of the cavity chamber 23. A duct pipe 24 is installed through the lower end of the cavity chamber 23. The right end of the duct pipe 24 is connected to the jet nozzle 25. The output end of the jet nozzle 25 is aligned with the inside of the placement platform 15. A one-way air inlet 26 is installed through the lower left side of the cavity chamber 23. A one-way valve is installed inside the one-way air inlet 26.

[0047] In this embodiment, as the threaded rod 4 rotates, the drive rod 16 rotates under the limiting sleeve at the front end of the rack 8, driven by the gear at the front end of the rack 8. The rotation of the drive rod 16, through the meshing of the first bevel gear 17 and the second bevel gear 18, can drive the disc rod 19 to rotate. The rotation of the disc rod 19 drives the grooved push rod 21 through the front end pin 20. With the sealing plate 22 at the lower end in contact with the inner wall of the cavity 23, the grooved push rod 21 can pull the sealing plate 22 up and down with the drive of the pin 20. When the pressure is applied, the air inside the cavity chamber 23 is delivered to the jet nozzle 25 through the air guide pipe 24. The jet nozzle 25 is aimed at the workpiece placed inside the placement platform 15 and blows air in advance. At the same time, under the pull of the groove push rod 21, the sealing plate 22 can draw air in through the one-way valve inside the one-way air inlet 26, so that the cavity chamber 23 is refilled with air and can be recycled. This can achieve the effect of automatic jet cleaning and impurity removal, and prevent impurities on the surface of the workpiece from affecting the spraying effect, thereby further improving the quality of spraying.

[0048] Example 3:

[0049] like Figure 1 , Figure 3 , Figure 6, Figure 9 and Figure 10 The technical solution shown, based on Embodiment 2, discloses the following to address the problem of easy waste of spray coating materials: a collection chamber 27 is provided at the upper end of the base 1, and a collection and recycling mechanism is provided inside the collection chamber 27. The collection and recycling mechanism is provided with a leakage hole 31, which is located at the bottom of the placement platform 15. The collection and recycling mechanism includes a recycling pipe 28 that is installed through the left rear end of the collection chamber 27. The left end of the recycling pipe 28 is installed through the inside of the feeding port 11. A liquid pump 29 is provided at the middle end of the recycling pipe 28. The front end of the liquid pump 29 is fixedly installed at the rear end of the base 1. An opening is provided at the upper end of the collection chamber 27, and the leakage hole 31 is positioned corresponding to the opening at the upper end of the collection chamber 27. A filter plate 30 is nested at the rear end of the collection chamber 27.

[0050] In this embodiment, after the workpiece is sprayed, excess sprayed material falls through the drain hole 31 at the bottom of the placement platform 15. The falling sprayed material falls into the collection chamber 27 through the opening at the top of the collection chamber 27. A recycling pipe 28 connected to the feeding port 11 is provided on the left rear end of the collection chamber 27. The recycling pipe 28 uses a pump 29 to return the sprayed material inside the collection chamber 27 to the feeding port 11. This allows for the recycling of the sprayed material, saving resources, avoiding material waste, and reducing the cost of using the device. At the same time, a filter plate 30 is provided inside the collection chamber 27 to filter the sprayed material inside the collection chamber 27. The nested arrangement of the filter plate 30 allows for easy disassembly and assembly. While filtering impurities inside the sprayed material, it can also be easily disassembled for cleaning, improving the practicality of the device.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic spraying robot, comprising a base (1) and a side plate (2) fixedly installed on the upper left side of the base (1), wherein a servo motor (3) is fixedly installed on the upper end of the side plate (2), and a threaded rod (4) is fixedly installed on the output end of the servo motor (3), and a lifting platform (5) is threadedly installed on the surface of the threaded rod (4), wherein a mechanical sprayer (6) is provided on the upper right side of the lifting platform (5), and a placement platform (15) is fixedly installed on the upper right side of the base (1); Its features are: A storage box (10) is fixedly installed at the rear end of the side plate (2), and an anti-solidification mechanism is provided inside the storage box (10), and the anti-solidification mechanism is provided with a stirring rod (9), and the upper end of the stirring rod (9) is rotatably installed with the upper end of the storage box (10). The front end of the side plate (2) is fixedly installed with a cavity chamber (23), and the cavity chamber (23) is provided with an automatic cleaning and impurity removal mechanism. The automatic cleaning and impurity removal mechanism is provided with an air jet (25), and the lower end of the air jet (25) is fixedly installed on the upper surface of the front end of the placement platform (15). The upper end of the base (1) is provided with a collection chamber (27), and the inside of the collection chamber (27) is provided with a collection and recycling mechanism, and the collection and recycling mechanism is provided with a leakage hole (31), and the leakage hole (31) is opened at the bottom of the placement platform (15). The anti-solidification mechanism includes a rack (8) installed on the upper end of the threaded rod (4) through gear meshing, and the rear end of the rack (8) is installed on the upper end of the stirring rod (9) through gear meshing. A flow guide hose (13) is installed through the lower end of the storage tank (10), and the end of the flow guide hose (13) is fixedly installed on the upper end of the mechanical sprayer (6). A pressure pump (14) is provided on the outside of the flow guide hose (13), and the front end of the pressure pump (14) is fixedly installed on the rear end of the side plate (2). The automatic cleaning and impurity removal mechanism includes a drive rod (16) that is rotatably mounted on the front end of the side plate (2) through a limiting sleeve. The upper end of the drive rod (16) meshes with the front end of the rack (8) through a gear. The lower end of the drive rod (16) is fixedly mounted with a first bevel gear (17). The lower end of the first bevel gear (17) is meshed with a second bevel gear (18). The second bevel gear (18) is located at the middle end of the disc rod (19). The rear end of the disc rod (19) is rotatably mounted on the front end of the side plate (2). The front end of the disc rod (19) is fitted with a grooved push rod (21) through a pin (20), and a sealing plate (22) is fixedly installed at the lower end of the grooved push rod (21). The outer side of the sealing plate (22) is fitted against the inner wall of the cavity chamber (23). A duct pipe (24) is installed through the lower end of the cavity chamber (23). The right end of the duct pipe (24) is connected to the jet nozzle (25), and the output end of the jet nozzle (25) is aligned with the inside of the placement platform (15).

2. The automatic painting robot according to claim 1, characterized in that: The threaded rod (4) is rotatably installed inside the side plate (2), and a limit rod (7) is fixedly installed inside the side plate (2), with the middle end of the limit rod (7) passing through the lifting platform (5).

3. The automatic painting robot according to claim 1, characterized in that: The storage box (10) has a feeding port (11) fixedly installed on the left outer wall, and the feeding port (11) is connected to the storage box (10) through a one-way feed port (12), and a one-way valve is provided inside the one-way feed port (12).

4. An automatic painting robot according to claim 1, characterized in that: A one-way air inlet (26) is installed through the lower left side of the cavity (23), and a one-way valve is installed inside the one-way air inlet (26).

5. An automatic painting robot according to claim 1, characterized in that: The collection and recycling mechanism includes a recycling pipe (28) installed through the left side of the rear end of the collection bin (27), and the left end of the recycling pipe (28) is installed through the inside of the feeding port (11). A liquid pump (29) is provided at the middle end of the recycling pipe (28), and the front end of the liquid pump (29) is fixedly installed at the rear end of the base (1).

6. An automatic painting robot according to claim 5, characterized in that: The upper end of the collection chamber (27) is provided with an opening, and the leakage hole (31) is provided in a position corresponding to the upper opening of the collection chamber (27). A filter plate (30) is nested at the rear end of the collection chamber (27).

7. The method of using an automatic spraying robot according to claim 6, characterized in that: Specifically, it includes the following steps: S1: When in use, the workpiece to be sprayed is placed inside the placement platform (15) at the top of the base (1). At this time, the servo motor (3) is started. The start of the servo motor (3) drives the threaded rod (4) to rotate, so as to stir the spraying material inside the storage box (10) to prevent solidification. When spraying, the spraying is carried out through the spraying nozzle on the right side of the mechanical sprayer (6), so as to ensure the spraying effect and avoid poor spraying effect after the spraying material solidifies. S2: As the threaded rod (4) rotates, the drive rod (16) rotates under the limit sleeve at the front end of the rack (8) driven by the gear. The rotation of the drive rod (16) can be used repeatedly through the meshing of the first bevel gear (17) and the second bevel gear (18), which can achieve the effect of automatic jet cleaning and avoid the impurities on the surface of the workpiece affecting the spraying effect, and can further improve the quality of spraying. S3: After spraying the workpiece, the excess spraying material falls through the drain hole (31) at the bottom of the placement platform (15). The falling spraying material falls into the collection chamber (27) through the opening at the top of the collection chamber (27). In this way, the spraying material can be recycled, saving resources, avoiding material waste, reducing the cost of using the device, and the nested arrangement of the filter plate (30) allows for easy disassembly and assembly. While filtering impurities inside the spraying material, it can be easily disassembled for cleaning, improving the practicality of the device.

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