A device for on-line detection of dust concentration for electrostatic powder spraying

Abstract

The application discloses a kind of electrostatic powder spraying dust concentration on-line detection device, it is related to dust detection technical field, including detection pipeline, detection pipeline is equipped with shell, detection pipeline is opened with detection port, detection port is fixedly connected with dust detection base, dust detection base top and upper detection seat are movably connected, and perspective board is installed in upper detection seat, and the top of perspective board is provided with photosensitive sensor, and the outside of perspective board is provided with laser emitter, and lens adjuster is arranged between dust detection base and upper detection seat, pipe wall cleaning component is arranged in detection pipeline, pipe wall cleaning component is movably connected with drive module, and adjusting assembly is arranged on drive module, dust in detection pipeline can be sampled by setting dust detection base, and dust concentration can be on-line detected by light scattering mode, to ensure the precision of detection, and the incidence angle of laser can be adjusted in real time by lens adjuster, to select the best light-emitting angle.

Description

Technical Field

[0001] This invention relates to the field of dust detection technology, specifically to an online dust concentration detection device for electrostatic powder coating. Background Technology

[0002] Electrostatic powder coating, as one of the mainstream processes for metal surface coating, is widely used in home appliances, automobiles, building materials, and general industries. In this process, it is necessary to conduct real-time, accurate, and continuous online monitoring of dust concentration in the spraying chamber. This is the foundation for achieving closed-loop process control and ensuring production safety and product quality.

[0003] Currently, the most common online dust concentration detection methods used in electrostatic powder coating production lines are based on optical principles, with light scattering dust meters being the most prevalent. However, in actual long-term operation, existing light scattering dust detection devices have two technical drawbacks. First, dust adhesion to the inner wall of the detection pipe affects the normal flow of dust, leading to a decrease in detection accuracy. Second, existing cleaning devices have poor pipe diameter adaptability, forcing operators to manually replace scrapers of different specifications, which is time-consuming and labor-intensive.

[0004] In summary, there is an urgent need for an online light scattering detection method for powder concentration that can remove dust adhering to the inner wall of the detection pipe and adaptively adjust to match different pipe diameters, thereby improving the accuracy of dust concentration detection. Summary of the Invention

[0005] The purpose of this invention is to provide an online dust concentration detection device for electrostatic powder coating, so as to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: The online dust concentration detection device for electrostatic powder coating includes a detection pipe, an outer shell is provided around the detection pipe, a detection port is provided on the detection pipe, the detection port is fixedly connected to a dust detection base, the top of the dust detection base is movably connected to an upper detection seat, a viewing plate is installed inside the upper detection seat, a photosensitive sensor is provided on the top of the viewing plate, a laser emitter is provided on the outside of the viewing plate, a lens adjuster is provided between the dust detection base and the upper detection seat, a pipe wall cleaning assembly is provided inside the detection pipe, the pipe wall cleaning assembly is movably connected to a drive module, and an adjustment assembly is provided on the drive module.

[0007] As a preferred technical solution, the dust detection base includes a flange seat, which is connected to the detection port. The dust detection base is provided with a detection chamber, and a lens is provided on the top of the detection chamber. The lens is fixed by a lens ring.

[0008] As a preferred technical solution, a receiving lens is provided at the bottom of the transillumination plate, a circuit board is fixedly installed at the top of the upper detection seat, and the transillumination plate is fixedly installed below the circuit board.

[0009] As a preferred technical solution, the lens adjuster includes an adjusting seat fixed to the outer wall of the upper detection seat. Limiting holes are evenly provided on the side wall of the adjusting seat. An adjusting rod is rotatably connected inside the adjusting seat. Two grooves are provided on the adjusting rod. A knob is provided at one end of the adjusting rod that extends out of the adjusting seat. A channel is provided on the knob. A spring is provided in the channel. Steel balls are provided at both ends of the spring.

[0010] As a preferred technical solution, the pipe wall cleaning assembly includes a main rotating disk, with evenly spaced storage grooves on the side wall of the main rotating disk, and evenly spaced arc-shaped scrapers inside the main rotating disk. A partition is provided inside the main rotating disk, and a drive motor is fixedly installed on the partition. A secondary rotating disk is provided at the output end of the drive motor. A rotating shaft is provided at one end of the arc-shaped scraper, and a driven tooth is provided at the bottom of the rotating shaft. The rotating shaft is rotatably connected to the main rotating disk, and the side wall of the secondary rotating disk meshes with the driven tooth. The arc-shaped scraper extends out from the storage groove.

[0011] As a preferred technical solution, the drive module includes a main body, a main motor is disposed inside the main body, the output end of the main motor is fixedly connected to the main rotating disk, support rods are evenly disposed on the outer side of the main body, the support rods are rotatably connected to the main body, one end of the support rod is provided with an adjusting tooth, drive wheels are evenly disposed on the outer side of the main body, a movable seat is sleeved on the support rod, and a vision sensor is disposed at the end of the main body.

[0012] As a preferred technical solution, the drive wheel includes a track, a connecting rod is rotatably mounted on the track, the other end of the connecting rod is rotatably connected to the main body, and a shock-absorbing rod is also mounted on the drive wheel.

[0013] As a preferred technical solution, the other end of the shock-absorbing rod is rotatably connected to the movable seat. The shock-absorbing rod includes a sleeve and a sleeve. A shock-absorbing spring is sleeved on the sleeve. A slider is provided at the end of the sleeve. A groove is provided on the sleeve. When the sleeve is inserted into the sleeve, the slider is embedded in the groove.

[0014] As a preferred technical solution, the adjustment component includes an adjustment ring disposed outside the support rod, the inner wall of the adjustment ring meshing with the adjustment teeth, the outer wall of the adjustment ring being provided with conical teeth, an adjustment motor being fixedly mounted on the main body, and a bevel gear being provided at the output end of the adjustment motor, the bevel gear meshing with the conical teeth.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a dust detection base, dust can be sampled in the detection pipeline, reducing the flow of dust. The dust concentration can be detected online through light scattering, ensuring the accuracy of the detection. At the same time, the incident angle of the laser can be adjusted in real time through the lens adjuster, and the optimal emission angle can be selected according to different needs, thereby reducing detection errors. 2. When dust flows inside the detection pipeline, it generates static electricity. Due to the attraction of static electricity, these dust particles can easily affect the normal flow of dust, thus affecting the concentration detection results. The pipe wall cleaning component can remove these attached dust particles in real time, ensuring the accuracy of the detection. In addition, the pipe wall cleaning component can adjust the length of the scraper in real time to adapt to detection pipelines of different sizes. 3. The drive module can move the pipe wall cleaning component along the detection pipe, and the position of the drive wheel can be changed in real time by adjusting the component to adapt to detection pipes of different sizes. At the same time, shock absorbers are installed on the drive wheel to reduce vibration when the drive wheel moves, prevent laser deviation, and ensure the accuracy of concentration detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the main body of the present invention; Figure 3 This is a cross-sectional structural diagram of the dust detection base of the present invention; Figure 4 This is a cross-sectional structural diagram of the lens adjuster of the present invention; Figure 5 This is a schematic diagram of the pipe wall cleaning component and drive module of the present invention; Figure 6 This is a cross-sectional structural diagram of the pipe wall cleaning component and the drive module of the present invention; Figure 7 This is a cross-sectional structural diagram of the pipe wall cleaning assembly of the present invention; Figure 8 yes Figure 6 A magnified structural diagram of point A in the middle.

[0017] In the diagram: 1. Detection pipe; 2. Dust detection base; 3. Upper detection seat; 4. Lens adjuster; 5. Pipe wall cleaning assembly; 6. Drive module; 7. Adjustment assembly; 11. Outer shell; 12. Detection port; 21. Flange seat; 22. Detection chamber; 23. Lens; 24. Lens ring; 31. Transparent plate; 32. Laser emitter; 33. Circuit board; 41. Adjustment seat; 42. Adjustment rod; 43. Knob; 51. Main rotating disk; 52. Arc-shaped scraper; 53. Partition plate; 54. Drive motor; 55. Secondary rotating disk; 61. Main body; 62. Main motor; 63. Support rod; 64. Drive wheel; 65. Movable seat; 66. Vision sensor; 67. Shock absorber rod; 71. Adjustment ring; 72. Adjustment motor; 3101, Photosensitive sensor; 3102, Receiving lens; 4101, Limiting hole; 4201, Groove; 4301, Channel; 4302, Spring; 4303, Steel ball; 5101, Storage slot; 5201, Rotating shaft; 5202, Driven gear; 6301, Adjusting gear; 6401, Track; 6402, Connecting rod; 6701, Sleeve rod; 6702, Sleeve; 6703, Shock-absorbing spring; 6704, Slider; 6705, Slide groove; 7101, Bevel tooth; 7201, Bevel gear. Detailed Implementation

[0018] 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.

[0019] Example: Figures 1-8As shown, this invention provides a technical solution for an online dust concentration detection device for electrostatic powder coating. This device includes a detection pipe 1, an outer casing 11, and a detection port 12. The detection port 12 is fixedly connected to a dust detection base 2. The top of the dust detection base 2 is movably connected to an upper detection seat 3. A viewing plate 31 is installed inside the upper detection seat 3. A photosensitive sensor 3101 is installed on the top of the viewing plate 31, and a laser emitter 32 is installed on the outside of the viewing plate 31. A lens adjuster 4 is installed between the dust detection base 2 and the upper detection seat 3. A pipe wall cleaning assembly 5 is installed inside the detection pipe 1 and movably connected to a drive module 6. An adjustment assembly 7 is installed on the drive module 6. The detection pipe 1 can detect the dust concentration of the powder coating. Indoor dust is collected to ensure a stable dust movement path, facilitating dust concentration detection. The dust detection base 2 works in conjunction with the upper detection base 3 to perform online dust concentration detection with sufficient accuracy. The lens adjuster 4 can adjust the laser incident angle in real time, optimizing the scattered laser and improving detection accuracy and sensitivity. The pipe wall cleaning component 5 can scrape off dust adhering to the inner wall of the detection pipe 1, ensuring stable dust flow and thus improving concentration detection accuracy. The drive module 6 drives the movement of the pipe wall cleaning component 5, enabling it to clean the entire detection pipe 1. The adjustment component 7 on the drive module 6 can adjust the position of the drive wheel 64 to adapt to detection pipes 1 of different sizes, improving the cleaning efficiency of the detection pipe 1.

[0020] The dust detection base 2 includes a flange seat 21, which is connected to the detection port 12. The dust detection base 2 has a detection chamber 22 inside, and a lens 23 is installed on the top of the detection chamber 22. The lens 23 is fixed by a lens ring 24.

[0021] A receiving lens 3102 is provided at the bottom of the viewing plate 31. A circuit board 33 is fixedly installed at the top inside the upper detection seat 3. The viewing plate 31 is fixedly installed below the circuit board 33. After the dust enters the detection chamber 22 through the detection port 12, it can keep the dust in a stable state, which is convenient for subsequent dust concentration detection. The lens 23 separates the detection chamber 22 from the upper detection seat 3 to prevent dust from affecting the entry into the upper detection seat 3. Then, the laser emitter 32 emits a laser into the detection chamber 22. When the lens adjuster 4 is in the initial state, the laser directly passes through the lens adjuster 4 and the lens and enters the detection chamber 22. When the laser irradiates the dust particles, it will be scattered. Some of the scattered light passes through the receiving lens 3102 on the other side and passes through the viewing plate 31. Finally, the scattered light signal is received by the photosensitive sensor 3101. Then, the photosensitive sensor 3101 converts the light signal into an electrical signal and sends it to the circuit board 33 for processing. By comparing the intensity of the initial laser and the intensity of the finally received scattered light signal, the content of dust in the detection chamber can be calculated, thereby detecting the dust concentration.

[0022] The lens adjuster 4 includes an adjusting seat 41 fixed to the outer wall of the upper detection seat 3. Limiting holes 4101 are evenly arranged on the side wall of the adjusting seat 41. An adjusting rod 42 is rotatably connected inside the adjusting seat 41. Two grooves 4201 are opened on the adjusting rod 42. A knob 43 is provided at one end of the adjusting rod 42 that extends out of the adjusting seat 41. A channel 4301 is provided on the knob 43. A spring 4302 is provided in the channel 4301. Steel balls 4303 are provided at both ends of the spring 4302. Initially, the steel balls 4303 at both ends of the spring 4302 are embedded in the limiting holes 4101, which can fix the adjusting rod 42 in the initial state. When the dust particles or the environment change, it is necessary to adjust the incident angle of the laser simultaneously. By rotating the knob 43, the entire adjusting rod 42 is rotated to ensure the optimal receiving angle of the scattered light.

[0023] The pipe wall cleaning assembly 5 includes a main rotating disk 51. The main rotating disk 51 has evenly spaced collection grooves 5101 on its sidewalls. Arc-shaped scrapers 52 are evenly arranged inside the main rotating disk 51. A partition 53 is also located inside the main rotating disk 51, and a drive motor 54 is fixedly mounted on the partition 53. A secondary rotating disk 55 is located at the output end of the drive motor 54. A rotating shaft 5201 is located at one end of the arc-shaped scraper 52, and a driven tooth 5202 is located at the bottom of the rotating shaft 5201. The rotating shaft 5201 is rotatably connected to the main rotating disk 51. The sidewall of the secondary rotating disk 55 meshes with the driven tooth 5202. The arc-shaped scraper 52 extends out from the collection grooves 5101. The partition 53 divides the internal space of the main rotating disk 51 into a dust contact area and a dust isolation area. The dust scraped off by the arc-shaped scraper 52 enters the dust contact area through the collection grooves 5101. The dust is collected within the zone. The dust isolation zone includes one end of the rotating shaft 5201 with driven teeth 5202, and an auxiliary rotating disk 55 connected to the output end of the drive motor 54. The partition 53 ensures that dust does not come into contact with the driven teeth 5202 and the auxiliary rotating disk 55, preventing dust from wearing down the driven teeth 5202 and affecting the meshing state between the driven teeth 5202 and the auxiliary rotating disk 55. The arc-shaped scraper 52 is connected to the main rotating disk 51 through the rotating shaft 5201 and rotates around the rotating shaft 5201. When the diameter of the detection pipe 1 changes, the drive motor 54 drives the auxiliary rotating disk 55 to rotate, which in turn drives the driven teeth 5202 to rotate, thereby rotating the entire rotating shaft 5201 and adjusting the extension length of the arc-shaped scraper 52 to adapt to the diameter of the detection pipe 1.

[0024] The drive module 6 includes a main body 61, inside which a main motor 62 is installed. The output end of the main motor 62 is fixedly connected to the main rotating disk 51. Support rods 63 are evenly arranged on the outside of the main body 61 and are rotatably connected to the main body 61. One end of the support rod 63 is provided with an adjusting tooth 6301. Drive wheels 64 are evenly arranged on the outside of the main body 61. A movable seat 65 is sleeved on the support rod 63. A vision sensor 66 is provided at the end of the main body 61. The main motor 62 can drive the entire main rotating disk 51 to rotate, so the arc-shaped scraper 52 can continuously scrape away the dust adhering to the inner wall of the detection pipe 1. This dust will enter the main rotating disk 51 through the collection groove 5101 and be collected to prevent secondary adhesion of dust. After the pipe wall cleaning component 5 at the front end has completed cleaning, the drive module 6 drives the pipe wall cleaning component 5 to move forward. The vision sensor 66 located at the tail of the drive module 6 can detect the cleaned inner wall to ensure that the inner wall of the detection pipe 1 is thoroughly cleaned.

[0025] The drive wheel 64 includes a track 6401, on which a connecting rod 6402 is rotatably mounted. The other end of the connecting rod 6402 is rotatably connected to the main body 61. The drive wheel 64 is also provided with a shock-absorbing rod 67.

[0026] The other end of the shock-absorbing rod 67 is rotatably connected to the movable seat 65. The shock-absorbing rod 67 includes a sleeve rod 6701 and a sleeve 6702. A shock-absorbing spring 6703 is sleeved on the sleeve rod 6701. A slider 6704 is provided at the end of the sleeve rod 6701. A groove 6705 is provided on the sleeve 6702. When the sleeve rod 6701 is inserted into the sleeve 6702, the slider 6704 is embedded in the groove 6705. The shock-absorbing rod 67 can reduce the vibration generated when the drive module 6 moves, thereby reducing the shaking of the laser emitter 32, ensuring the reception of stable scattered light, and improving the accuracy of dust concentration detection.

[0027] The adjustment assembly 7 includes an adjustment ring 71, which is disposed outside the support rod 63. The inner wall of the adjustment ring 71 meshes with the adjustment teeth 6301, and the outer wall of the adjustment ring 71 is provided with conical teeth 7101. An adjustment motor 72 is fixedly installed on the main body 61. The output end of the adjustment motor 72 is provided with a bevel gear 7201, which meshes with the bevel teeth 7101. The adjustment motor 72 can drive the bevel gear 7201 to rotate, and the bevel gear 7201 meshes with the bevel teeth 7101, thereby driving the adjustment ring 71 to rotate. The inner side of the adjustment ring 71 meshes with the adjustment teeth 6301. Therefore, when the adjustment motor 72 is started, it can drive all the support rods 63 to rotate simultaneously. The support rods 63 and the movable seat 65 are threadedly connected. When the support rods 63 rotate, they will drive the movable seat 65 to move along the support rods 63. Therefore, when the diameter of the detection pipe 1 changes, it is only necessary to start the adjustment motor 72 to change the distance between the drive wheel 64 and the main body 61, thereby adapting to detection pipes 1 of different diameters.

[0028] Working principle of the invention: A receiving lens 3102 is provided at the bottom of the viewing plate 31. A circuit board 33 is fixedly installed at the top inside the upper detection seat 3. The viewing plate 31 is fixedly installed below the circuit board 33. After the dust enters the detection chamber 22 through the detection port 12, it can keep the dust in a stable state, which is convenient for subsequent dust concentration detection. The lens 23 separates the detection chamber 22 from the upper detection seat 3 to prevent dust from affecting the entry into the upper detection seat 3. Then, the laser emitter 32 emits a laser into the detection chamber 22. When the lens adjuster 4 is in the initial state, the laser directly passes through the lens adjuster 4 and the lens and enters the detection chamber 22. When the laser irradiates the dust particles, it will be scattered. Some of the scattered light passes through the receiving lens 3102 on the other side and passes through the viewing plate 31. Finally, the scattered light signal is received by the photosensitive sensor 3101. Then, the photosensitive sensor 3101 converts the light signal into an electrical signal and sends it to the circuit board 33 for processing. By comparing the intensity of the initial laser and the intensity of the finally received scattered light signal, the content of dust in the detection chamber can be calculated, thereby detecting the dust concentration.

[0029] The partition 53 divides the internal space of the main rotating disk 51 into a dust contact area and a dust isolation area. The dust scraped off by the arc-shaped scraper 52 enters the dust contact area through the collection groove 5101 and is collected. The dust isolation area includes one end of the rotating shaft 5201 with the driven tooth 5202, and the auxiliary rotating disk 55 connected to the output end of the drive motor 54. The partition 53 ensures that dust does not come into contact with the driven tooth 5202 and the auxiliary rotating disk 55, preventing dust wear. The driven tooth 5202 affects the meshing state between the driven tooth 5202 and the auxiliary rotating disk 55. The arc-shaped scraper 52 is connected to the main rotating disk 51 through the rotating shaft 5201 and rotates around the rotating shaft 5201. When the diameter of the detection pipe 1 changes, the drive motor 54 drives the auxiliary rotating disk 55 to rotate, which drives the driven tooth 5202 that meshes with it to rotate, thereby causing the entire rotating shaft 5201 to rotate and adjust the extension length of the arc-shaped scraper 52 to adapt to the diameter of the detection pipe 1.

[0030] By setting up the dust detection base 2, dust can be sampled in the detection pipe 1, reducing the flow of dust. The dust concentration can be detected online by light scattering, ensuring the accuracy of the detection. At the same time, the incident angle of the laser can be adjusted in real time by the lens adjuster 4, and the optimal emission angle can be selected according to different needs, thereby reducing the detection error.

[0031] When dust flows inside the detection pipe 1, it generates static electricity. Due to the attraction of static electricity, these dust particles can easily affect the normal flow of dust, thus affecting the concentration detection results. The pipe wall cleaning component 5 can remove these attached dust particles in real time, ensuring the accuracy of the detection. Furthermore, the pipe wall cleaning component 5 can adjust the length of the scraper in real time to adapt to detection pipes 1 of different sizes.

[0032] The drive module 6 can drive the pipe wall cleaning component 5 to move along the detection pipe 1, and the adjustment component 7 can change the position of the drive wheel 64 in real time to adapt to detection pipes 1 of different sizes. At the same time, a shock-absorbing rod 67 is installed on the drive wheel 64 to reduce the vibration generated when the drive wheel 64 moves, prevent the laser from deviating, and ensure the accuracy of concentration detection.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An online dust concentration detection device for electrostatic powder coating, characterized in that: The online dust concentration detection device for electrostatic powder coating includes a detection pipe (1), which is covered with a shell (11). A detection port (12) is opened on the detection pipe (1). The detection port (12) is fixedly connected to a dust detection base (2). The top of the dust detection base (2) is movably connected to an upper detection seat (3). A viewing plate (31) is installed inside the upper detection seat (3). A photosensitive sensor (3101) is set on the top of the viewing plate (31). A laser emitter (32) is set on the outside of the viewing plate (31). A lens adjuster (4) is set between the dust detection base (2) and the upper detection seat (3). A pipe wall cleaning component (5) is set inside the detection pipe (1). The pipe wall cleaning component (5) is movably connected to a drive module (6). An adjustment component (7) is set on the drive module (6).

2. The online dust concentration detection device for electrostatic powder coating according to claim 1, characterized in that: The dust detection base (2) includes a flange seat (21), which is connected to the detection port (12). The dust detection base (2) is provided with a detection chamber (22), and a lens (23) is provided on the top of the detection chamber (22). The lens (23) is fixed by a lens ring (24).

3. The online dust concentration detection device for electrostatic powder coating according to claim 2, characterized in that: The bottom of the viewing plate (31) is provided with a receiving lens (3102), and the top of the upper detection seat (3) is fixedly installed with a circuit board (33), and the viewing plate (31) is fixedly installed below the circuit board (33).

4. The online dust concentration detection device for electrostatic powder coating according to claim 3, characterized in that: The lens adjuster (4) includes an adjustment seat (41) fixed to the outer wall of the upper detection seat (3). Limiting holes (4101) are evenly provided on the side wall of the adjustment seat (41). An adjustment rod (42) is rotatably connected inside the adjustment seat (41). Two grooves (4201) are provided on the adjustment rod (42). A knob (43) is provided at one end of the adjustment rod (42) that extends out of the adjustment seat (41). A channel (4301) is provided on the knob (43). A spring (4302) is provided inside the channel (4301). Steel balls (4303) are provided at both ends of the spring (4302).

5. The online dust concentration detection device for electrostatic powder coating according to claim 4, characterized in that: The pipe wall cleaning assembly (5) includes a main rotating disk (51), the side wall of the main rotating disk (51) is evenly provided with a collection groove (5101), the main rotating disk (51) is evenly provided with an arc-shaped scraper (52), the main rotating disk (51) is provided with a partition (53), a drive motor (54) is fixedly installed on the partition (53), the output end of the drive motor (54) is provided with a secondary rotating disk (55), one end of the arc-shaped scraper (52) is provided with a rotating shaft (5201), the bottom of the rotating shaft (5201) is provided with a driven tooth (5202), the rotating shaft (5201) is rotatably connected to the main rotating disk (51), the side wall of the secondary rotating disk (55) meshes with the driven tooth (5202), and the arc-shaped scraper (52) extends out from the collection groove (5101).

6. The online dust concentration detection device for electrostatic powder coating according to claim 5, characterized in that: The drive module (6) includes a main body (61), a main motor (62) is provided inside the main body (61), the output end of the main motor (62) is fixedly connected to the main rotating disk (51), support rods (63) are evenly arranged on the outside of the main body (61), the support rods (63) are rotatably connected to the main body (61), one end of the support rods (63) is provided with an adjusting tooth (6301), drive wheels (64) are evenly arranged on the outside of the main body (61), a movable seat (65) is sleeved on the support rods (63), and a vision sensor (66) is provided at the end of the main body (61).

7. The online dust concentration detection device for electrostatic powder coating according to claim 6, characterized in that: The drive wheel (64) includes a track (6401), a connecting rod (6402) is rotatably mounted on the track (6401), the other end of the connecting rod (6402) is rotatably connected to the main body (61), and a shock-absorbing rod (67) is also mounted on the drive wheel (64).

8. The online dust concentration detection device for electrostatic powder coating according to claim 7, characterized in that: The other end of the shock-absorbing rod (67) is rotatably connected to the movable seat (65). The shock-absorbing rod (67) includes a sleeve rod (6701) and a sleeve (6702). A shock-absorbing spring (6703) is sleeved on the sleeve rod (6701). A slider (6704) is provided at the end of the sleeve rod (6701). A groove (6705) is provided on the sleeve (6702). When the sleeve rod (6701) is inserted into the sleeve (6702), the slider (6704) is embedded in the groove (6705).

9. The online dust concentration detection device for electrostatic powder spraying according to claim 8, characterized in that: The adjustment assembly (7) includes an adjustment ring (71), which is disposed outside the support rod (63). The inner wall of the adjustment ring (71) meshes with the adjustment teeth (6301), and the outer wall of the adjustment ring (71) is provided with conical teeth (7101). An adjustment motor (72) is fixedly installed on the main body (61), and a bevel gear (7201) is provided at the output end of the adjustment motor (72), which meshes with the bevel teeth (7101).

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