A dust separating and filtering device for powder spraying

Abstract

The application discloses a dust separation and filtering device for powder spraying, and relates to the technical field of powder recycling equipment.The device comprises a rectangular outer shell, a swing mechanism for reducing powder residues is arranged in the outer shell, an impact mechanism for accelerating dust separation is further arranged in the outer shell, a flushing mechanism for reducing dust floating is arranged outside the swing mechanism, a sealing mechanism for reducing dust diffusion to the upper part of the outer shell is arranged on the inner wall of the outer shell, a connecting rod is driven by a hydraulic cylinder, hooks on a plurality of rotating rods are inverted and hang filtering bags, and the bottom openings of the filtering bags are fixed on square plates.When the hydraulic cylinder reciprocates, the overall swing of all the filtering bags can be driven, and the state of the traditional filtering bags that are prone to powder accumulation is changed.During the filtering and recycling process, the powder attached to the inside of the filtering bags is forced to fall off through intermittent swing, the large amount of powder residues on the filtering structure is reduced, and the powder recycling rate is improved.

Description

Technical Field

[0001] This invention relates to the field of powder recycling equipment technology, specifically to a dust separation and filtration device for powder spraying. Background Technology

[0002] Electrostatic spraying is a coating method that uses a high-voltage electrostatic field to cause negatively charged paint particles to move in the opposite direction of the electric field, thus adsorbing the paint particles onto the workpiece surface. The basic principle is that a high-voltage corona discharge electric field is formed between the spray gun and the workpiece. When powder particles are ejected from the spray gun nozzle and pass through the discharge zone, they capture a large number of electrons, becoming negatively charged particles. Under the influence of electrostatic attraction, these particles are adsorbed onto the positively charged workpiece. When the powder adheres to a certain thickness, the "like charges repel" effect occurs, preventing further powder adsorption and thus ensuring a uniform powder layer thickness in all areas.

[0003] In actual operations of powder coating and subsequent dust separation and filtration recovery, powder is very easy to adhere to and remain in large quantities on the surface and inside of the filter bag. At the same time, the deposited dust on the filter structure is often tightly adhered, and the dust detachment speed is slow, resulting in dust retention and accumulation inside the device.

[0004] Therefore, the present invention proposes a dust separation and filtration device for powder coating to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0005] In view of the above problems, the present invention provides a dust separation and filtration device for powder coating, which can effectively solve the problem of dust retention and accumulation inside the device in the prior art. To achieve the above objective, the embodiments of this application provide the following technical solutions: This invention discloses a dust separation and filtration device for powder coating, comprising a rectangular outer shell, an oscillating mechanism for reducing powder residue inside the outer shell, an impact mechanism for accelerating dust removal inside the outer shell, a flushing mechanism for reducing dust floating outside the oscillating mechanism, and a sealing mechanism for reducing dust diffusion upwards on the inner wall of the outer shell. The swing mechanism includes multiple rotating rods that are horizontally and rotatably connected to the outer shell, with both ends of the rotating rods extending to the outside of the outer shell. Each rotating rod is symmetrically and fixedly connected to a hook, and a filter bag for filtering dust is fixedly connected to the bottom of each hook. The filter bag is suspended upside down at the bottom of the hook. The bottom opening of each filter bag is simultaneously and fixedly connected to the upper surface of a square plate, and the surface of the square plate has through holes for dust to enter the interior of the filter bag.

[0006] Furthermore, the swing mechanism also includes a lever fixedly connected to the extension end of the rotating rod, a hydraulic cylinder fixedly connected to the side of the outer casing, a connecting rod fixedly connected to the output end of the hydraulic cylinder, the side of the connecting rod being rotatably connected to the end of the lever away from the rotating rod, and a sliding groove being provided at the connection between the connecting rod and the lever.

[0007] Furthermore, a funnel is fixedly connected to the bottom of the outer shell, and the funnel is in communication with the bottom of the outer shell. An air inlet for dust to enter is provided on the side of the funnel, and an air outlet for filtered airflow to be discharged is provided on the top of the outer shell.

[0008] Furthermore, the impact mechanism includes a rotating shaft rotatably connected to the inside of the outer casing, cams symmetrically fixedly connected to the outside of the rotating shaft, and a servo motor fixedly connected to the outside of the outer casing, with the output end of the servo motor fixedly connected to one end of the rotating shaft.

[0009] Furthermore, the impact mechanism also includes a support frame that is symmetrically and fixedly connected to the bottom of the square plate, and the support frame has an L-shaped structure. A first roller is fixedly connected to the bottom of the vertical section of the support frame, and the first roller is in rolling cooperation with the cam.

[0010] Furthermore, a second roller is fixedly connected to one end of the horizontal section of the support frame near the side wall of the outer shell, and the second roller rolls in cooperation with the inner wall of the outer shell.

[0011] Furthermore, the flushing mechanism includes water outlets fixedly connected at equal intervals to the bottom of each rotating rod, and a water inlet pipe is fixedly connected to the end of the rotating rod away from the lever, and the water inlet pipe is in communication with the interior of the rotating rod.

[0012] Furthermore, the flushing mechanism also includes a water storage tank fixedly connected to the bottom of the funnel, and the water storage tank is in communication with the funnel. A water pump is fixedly connected to the outside of the water storage tank, the water inlet of the water pump is in communication with the water storage tank, and the water outlet of the water pump is fixedly connected to the end of the water inlet pipe away from the rotating rod.

[0013] Furthermore, the closure mechanism includes a baffle fixedly connected to the inner wall of the outer shell, and the baffle extends to the bottom of the square plate, with the lower surface of the square plate overlapping the upper surface of the baffle.

[0014] Furthermore, the sealing mechanism also includes a fixing block fixedly connected to the inner wall of the outer shell. The fixing block is vertically slidably connected to a slide rod. A limit block is fixedly connected to the side of the slide rod near the bottom. A compression spring is also sleeved on the outside of the slide rod, and the compression spring is located between the limit block and the fixing block. The bottom of the slide rod is fixedly connected to the upper surface of the square plate. A rotating shaft is also rotatably connected to the side wall of the outer shell, and one end of the rotating shaft extends to the outside of the outer shell. A circular plate is eccentrically fixedly connected to one end of the rotating shaft, and a knob is fixedly connected to the other end of the rotating shaft.

[0015] The beneficial effects of this invention are as follows: 1. This device is equipped with a swing mechanism. The connecting rod is driven by a hydraulic cylinder. The hooks on multiple rotating rods are upside down to suspend the filter bags. The bottom opening of the filter bags is fixed to a square plate. When the hydraulic cylinder moves back and forth, it can drive all the filter bags to swing as a whole. This changes the traditional state of filter bags being static and prone to powder accumulation. During the filtration and recovery process, the intermittent swinging causes the powder attached to the inside of the filter bags to fall off under force, reducing the large amount of powder residue on the filter structure and improving the powder recovery rate.

[0016] 2. This device is equipped with an impact mechanism that uses a servo motor to drive a rotating shaft, causing the cam on it to rotate synchronously. The first roller rolls in cooperation with the cam, while the second roller rolls in cooperation with the inner wall of the outer casing, ensuring the verticality and stability of the impact motion. During the rotation, the cam continuously pushes and releases the support frame, bringing continuous impact and vibration to the square plate and filter bag, breaking the tight adhesion between the dust and the filter bag and square plate, accelerating the detachment and falling speed of the dust, and reducing the problem of dust retention and accumulation inside the device.

[0017] 3. This device is equipped with a flushing mechanism, with water outlets evenly spaced at the bottom of each rotating rod. Water is delivered into the rotating rods and sprayed out from the outlets using a water tank at the bottom of the funnel and an external water pump. The sprayed water can flush the swinging mechanism and the area around the filter bag. The dust increases in weight under the capture and wetting effect of the water flow, which can reduce the floating and suspension of light dust inside the device. The dust is then collected in the water tank below with the water flow, which not only reduces dust residue but also allows for faster dust collection.

[0018] 4. This device is equipped with a sealing mechanism, in which a baffle is fixedly installed on the inner wall of the outer shell. The lower surface of the square plate and the upper surface of the baffle form a sealed structure that overlaps with each other. The overlapping and cooperation of the baffle and the square plate forms a blocking function in the cavity of the device. During the operation of the device, it can reduce and prevent dust from spreading upward to the outer shell, so that only the filtered airflow can be discharged from the top air outlet, thereby improving the dust separation efficiency of the device and preventing the separated dust from re-adhering to the surface of the filter bag. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the invention from a first perspective.

[0021] Figure 2 This is a front view of the present invention.

[0022] Figure 3 This is a schematic diagram showing the connection between the filter bag and the square plate in this invention.

[0023] Figure 4 This is a front view of the flushing mechanism in this invention.

[0024] Figure 5 In this invention Figure 4 Enlarged view of the structure at point A in the middle.

[0025] Figure 6 This is a longitudinal cross-sectional view of the closing mechanism in this invention.

[0026] The labels in the diagram represent: 10, outer casing; 20, swing mechanism; 201, rotating rod; 202, hook; 203, filter bag; 204, square plate; 205, lever; 206, connecting rod; 207, hydraulic cylinder; 208, funnel; 209, air inlet; 210, air outlet; 30, impact mechanism; 301, rotating shaft; 302, servo motor; 303, cam; 304, support frame; 305, first roller; 306, second roller; 40, flushing mechanism; 401, water inlet pipe; 402, water outlet; 403, water pump; 404, water storage tank; 50, sealing mechanism; 501, baffle; 502, fixing block; 503, slide bar; 504, compression spring; 505, limit block; 506, rotating shaft; 507, circular plate; 508, knob. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0028] The present invention will be further described below with reference to embodiments.

[0029] See Figures 1 to 6 This embodiment of a powder coating dust separation and filtration device includes a rectangular outer shell 10. The outer shell 10 is provided with a swing mechanism 20 to reduce powder residue. The outer shell 10 is also provided with an impact mechanism 30 to accelerate dust removal. The swing mechanism 20 is provided with a flushing mechanism 40 to reduce dust floating outside the swing mechanism 20. The inner wall of the outer shell 10 is provided with a sealing mechanism 50 to reduce dust diffusion to the upper part of the outer shell 10.

[0030] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The swing mechanism 20 includes multiple rotating rods 201 horizontally rotatably connected to the outer shell 10, with both ends of the rotating rods 201 extending outside the outer shell 10. Each rotating rod 201 is symmetrically fixedly connected to a hook 202, and each hook 202 has a filter bag 203 for filtering dust fixedly connected to its bottom. The filter bag 203 is suspended upside down at the bottom of the hook 202. The bottom opening of each filter bag 203 is simultaneously fixedly connected to the upper surface of a square plate 204, and the surface of the square plate 204 has through holes for dust to enter the filter bag 203. The outer surface of the filter bag 203 is provided with a PTFE hydrophobic coating to ensure that dust is peeled off and falls off under the action of flushing water without seeping into the filter cloth and agglomerating. The filter bag 203 has a corrugated folded structure in the vertical direction, and its maximum stretchable length is greater than the maximum lift of the cam 303 pushing the square plate 204, to accommodate the vertical displacement of the square plate 204.

[0031] The swing mechanism 20 also includes a lever 205 fixedly connected to the extension end of the rotating rod 201. A hydraulic cylinder 207 is also fixedly connected to the side of the outer shell 10. A connecting rod 206 is fixedly connected to the output end of the hydraulic cylinder 207. The side of the connecting rod 206 is rotatably connected to the end of the lever 205 away from the rotating rod 201, and a sliding groove is provided at the connection between the connecting rod 206 and the lever 205.

[0032] A funnel 208 is fixedly connected to the bottom of the outer casing 10, and the funnel 208 is in communication with the bottom of the outer casing 10. An air inlet 209 for dust to enter is opened on the side of the funnel 208, and an air outlet 210 for filtered airflow to exit is opened on the top of the outer casing 10. A guide baffle is fixedly connected to the inner wall of the funnel 208 above and inside the air inlet 209 to block the water flowing down from above from entering the air inlet 209 and to guide the dust-laden airflow upward.

[0033] In actual operation, the powder coating dust is drawn into the air inlet 209 by the fan and enters the filter bag 203 through the through hole at the bottom of the square plate 204. After the filtered airflow diffuses into the interior of the outer shell 10, the airflow is discharged from the air outlet 210. The dust adheres to the inside of the filter bag 203. During operation, the hydraulic cylinder 207 fixed on the side of the outer shell 10 is activated. The output end of the hydraulic cylinder 207 drives the connecting rod 206 to reciprocate. The side of the connecting rod 206 is rotatably connected to the lever 205 at the extension end of multiple rotating rods 201 through a sliding groove. The reciprocating movement of the connecting rod 206 drives all the horizontally set rotating rods 201 to rotate synchronously through the lever 205. The hook 202 fixed outside the rotating rod 201 swings synchronously, thereby driving the multiple filter bags 203 suspended upside down at the bottom of the hook 202 and the square plate 204 fixed at the bottom opening of the filter bag 203 to perform intermittent reciprocating swing as a whole. It changes the traditional static state of filter bag 203, which is prone to powder accumulation. During the filtration and recycling process, the powder adhering to the inside of filter bag 203 is dislodged by intermittent oscillation, which reduces the large amount of powder residue on the filter structure and improves the powder recycling efficiency.

[0034] See Figure 1 , Figure 4 and Figure 5 The impact mechanism 30 includes a rotating shaft 301 rotatably connected to the inside of the outer shell 10. A cam 303 is symmetrically fixedly connected to the outside of the rotating shaft 301. A servo motor 302 is also fixedly connected to the outside of the outer shell 10. The output end of the servo motor 302 is fixedly connected to one end of the rotating shaft 301.

[0035] The impact mechanism 30 also includes a support frame 304 that is symmetrically and fixedly connected to the bottom of the square plate 204, and the support frame 304 has an L-shaped structure. A first roller 305 is fixedly connected to the bottom of the vertical section of the support frame 304, and the first roller 305 is in rolling cooperation with the cam 303.

[0036] A second roller 306 is fixedly connected to one end of the horizontal section of the support frame 304 near the side wall of the outer shell 10, and the second roller 306 rolls in cooperation with the inner wall of the outer shell 10.

[0037] In actual operation, when cleaning the dust inside the filter bag 203, the servo motor 302 installed outside the outer shell 10 is started, driving the rotating shaft 301 fixedly connected to the output end of the servo motor 302 to rotate inside the outer shell 10. The rotating shaft 301 drives the cam 303, which is symmetrically fixed outside, to rotate synchronously. The L-shaped support frame 304, which is fixedly connected to the bottom of the square plate 204, maintains rolling contact with the cam 303 through the first roller 305 at the bottom. During the rotation, the cam 303 continuously pushes and releases the support frame 304. At this time, the second roller 306 on the horizontal edge of the support frame 304 rolls along the inner wall of the outer shell 10, constraining and ensuring the verticality and stability of the impact motion. This continuous pushing and releasing is converted into continuous vertical impact and vibration, which is directly transmitted to the square plate 204 and the filter bag 203. The continuous vertical impact and vibration can break the tight adhesion between the dust and the filter bag 203 and the square plate 204, accelerate the detachment and falling speed of the dust, and reduce the problem of dust retention and accumulation inside the device.

[0038] See Figure 1 , Figure 2 and Figure 5 The flushing mechanism 40 includes water outlets 402 that are fixedly connected at equal intervals to the bottom of each rotating rod 201. A water inlet pipe 401 is fixedly connected to the end of the rotating rod 201 away from the lever 205. The water inlet pipe 401 is in communication with the interior of the rotating rod 201.

[0039] The flushing mechanism 40 also includes a water storage tank 404 fixedly connected to the bottom of the funnel 208, and the water storage tank 404 is in communication with the funnel 208. A water pump 403 is fixedly connected to the outside of the water storage tank 404. The water inlet of the water pump 403 is in communication with the water storage tank 404, and the water outlet of the water pump 403 is fixedly connected to the end of the water inlet pipe 401 away from the rotating rod 201.

[0040] In operation, the water pump 403, installed outside the water storage tank 404 at the bottom of the funnel 208, is activated. Water is drawn from the water storage tank 404 through the inlet, and the high-pressure water is delivered to the inlet pipe 401 through the outlet of the water pump 403. The water then enters the interconnected rotating rod 201 and is finally sprayed out from the outlet 402, which is fixed at equal intervals at the bottom of the rotating rod 201. The water sprays directly onto the surrounding area of ​​the swing mechanism 20 and the filter bag 203, and the dust washed off is carried downwards by the water flow and eventually flows back into the water storage tank 404 below through the funnel 208. The sprayed water can directly wash the inside of the outer shell 10. Light dust increases in weight under the capture and wetting effect of the water flow, thereby reducing the floating and suspension of dust inside the device. At the same time, the dust is carried by the water flow to the water storage tank 404, which not only reduces dust residue but also achieves dust collection more quickly.

[0041] See Figure 1 , Figure 4 and Figure 6 The closing mechanism 50 includes a baffle 501 fixedly connected to the inner wall of the outer shell 10, and the baffle 501 extends to the bottom of the square plate 204, with the lower surface of the square plate 204 overlapping the upper surface of the baffle 501.

[0042] The closing mechanism 50 further includes a fixing block 502 fixedly connected to the inner wall of the outer shell 10. The fixing block 502 is vertically slidably connected to a slide rod 503. A limit block 505 is fixedly connected to the side of the slide rod 503 near the bottom. A compression spring 504 is also sleeved on the outside of the slide rod 503, and the compression spring 504 is located between the limit block 505 and the fixing block 502. The bottom of the slide rod 503 is fixedly connected to the upper surface of the square plate 204. A rotating shaft 506 is also rotatably connected to the side wall of the outer shell 10. One end of the rotating shaft 506 extends to the outside of the outer shell 10. A circular plate 507 is eccentrically fixedly connected to one end of the rotating shaft 506, and a knob 508 is fixedly connected to the other end of the rotating shaft 506.

[0043] In actual operation, when filtering powder, the rotating shaft 506 is rotated by turning the knob 508. The rotating shaft 506 drives the circular plate 507 to rotate eccentrically. During the rotation, the circular plate 507 presses down on the top of the slide rod 503, so that the slide rod 503 pushes the square plate 204 down and keeps it superimposed on the upper surface of the baffle 501, forming a blocking space in the cavity of the device. The dust-laden gas enters from the air inlet 209 on the side of the funnel 208. Under the obstruction of the sealing mechanism 50, it cannot overflow upwards and can only pass through the through hole of the square plate 204 to enter the filter bag 203 for filtration. The filtered clean airflow finally exits from the air outlet 210 at the top of the outer shell 10. The superimposed sealing cooperation between the baffle 501 and the square plate 204 can prevent unfiltered dust from diffusing upwards to the outer shell 10, ensuring that only the filtered airflow can be discharged from the top air outlet 210, improving the separation efficiency of the device for dust, and also preventing the separated dust from re-adhering to the surface of the filter bag 203.

[0044] When it is necessary to clean the dust adhering to the inside of the filter bag 203, first turn the knob 508 in the opposite direction. The rotating shaft 506 drives the circular plate 507 to rotate eccentrically, releasing the compression state between the circular plate 507 and the top of the slide rod 503. At this time, the slide rod 503 is in a free release position under the restriction of the limit block 505. Then, the impact mechanism 30 drives the square plate 204 to move up and down. When the square plate 204 is pushed up by the cam 303, it drives the slide rod 503 to slide upward and compress the compression spring 504. When the cam 303 rotates to the low point and releases the support frame 304, the compressed compression spring 504 provides auxiliary power for the rapid reset and downward movement of the square plate 204, so that the square plate 204 moves down into place.

[0045] Working principle: In the initial stage of powder filtration, the sealing mechanism 50 first rotates the circular plate 507 eccentrically by turning the knob 508, pressing the slide bar 503 downwards. This ensures that the square plate 204 is always tightly pressed against the upper surface of the baffle 501, forming a blocking space in the device cavity. This prevents the dust-laden gas from overflowing upwards after entering through the inlet 209. Subsequently, the gas is filtered in the swing mechanism 20. The hydraulic cylinder 207 reciprocates, driving the rotating rod 201 to deflect synchronously through the connecting rod 206 and the lever 205. This causes the filter bag 203, which is inverted and suspended at the bottom of the hook 202, and the square plate 204 at the bottom to swing intermittently. The filtered airflow is discharged from the outlet 210, and the attached powder is dislodged. When further cleaning of the tightly deposited dust inside the filter bag 203 is required, the knob 508 is turned in the opposite direction to release the sealing mechanism. In the compression state of 50, the impact mechanism 30 is activated. The servo motor 302 drives the cam 303 on the rotating shaft 301 to rotate, continuously pushing and releasing the support frame 304 and the first roller 305 connected to the bottom of the square plate 204. This is converted into continuous vertical impact and vibration, which is transmitted to the square plate 204 and the filter bag 203, breaking the tight adhesion of the dust and accelerating its detachment and fall. Finally, the water pump 403 of the flushing mechanism 40 is activated, and the high-pressure water flow in the water storage tank 404 is transported to the inside of the rotating rod 201 through the water inlet pipe 401 and sprayed out from the water outlet 402 at the bottom. This sprays and flushes the swing mechanism 20 and the area around the filter bag 203, so that the dust is captured and wetted by the water flow, and flows down through the funnel 208 with the water flow to collect and flow back to the water storage tank 404 below, thereby quickly completing the dust collection and cleaning.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dust separation and filtration device for powder coating, characterized in that, The device includes a rectangular outer shell (10), inside which a swing mechanism (20) is provided to reduce powder residue, inside which an impact mechanism (30) is also provided to accelerate dust removal, outside which a flushing mechanism (40) is provided to reduce dust floating, and inside which a sealing mechanism (50) is provided on the inner wall of the outer shell (10) to reduce dust diffusion to the top of the outer shell (10). The swing mechanism (20) includes multiple rotating rods (201) that are horizontally rotatably connected to the outer shell (10), and the two ends of the rotating rods (201) extend to the outside of the outer shell (10). Each rotating rod (201) is symmetrically fixedly connected to a hook (202). Each hook (202) is fixedly connected to a filter bag (203) for filtering dust at its bottom. The filter bag (203) is suspended upside down at the bottom of the hook (202). The bottom opening of each filter bag (203) is simultaneously fixedly connected to the upper surface of a square plate (204), and the surface of the square plate (204) is provided with a through hole for dust to enter the interior of the filter bag (203).

2. The dust separation and filtration device for powder coating according to claim 1, characterized in that, The swing mechanism (20) also includes a lever (205) fixedly connected to the extension end of the rotating rod (201). A hydraulic cylinder (207) is also fixedly connected to the side of the outer shell (10). A connecting rod (206) is fixedly connected to the output end of the hydraulic cylinder (207). The side of the connecting rod (206) is rotatably connected to the end of the lever (205) away from the rotating rod (201), and a sliding groove is provided at the connection between the connecting rod (206) and the lever (205).

3. The dust separation and filtration device for powder coating according to claim 1, characterized in that, The bottom of the outer shell (10) is fixedly connected to a funnel (208), the funnel (208) is connected to the bottom of the outer shell (10), the side of the funnel (208) is provided with an air inlet (209) for dust to enter, and the top of the outer shell (10) is provided with an air outlet (210) for filtered airflow to be discharged.

4. The dust separation and filtration device for powder coating according to claim 1, characterized in that, The impact mechanism (30) includes a rotating shaft (301) rotatably connected to the inside of the outer shell (10), a cam (303) is symmetrically fixedly connected to the outside of the rotating shaft (301), and a servo motor (302) is also fixedly connected to the outside of the outer shell (10). The output end of the servo motor (302) is fixedly connected to one end of the rotating shaft (301).

5. A dust separation and filtration device for powder coating according to claim 4, characterized in that, The impact mechanism (30) also includes a support frame (304) that is symmetrically and fixedly connected to the bottom of the square plate (204), and the support frame (304) has an L-shaped structure. A first roller (305) is fixedly connected to the bottom of the vertical section of the support frame (304), and the first roller (305) is in rolling cooperation with the cam (303).

6. A dust separation and filtration device for powder coating according to claim 5, characterized in that, The second roller (306) is fixedly connected to one end of the horizontal section of the support frame (304) near the side wall of the outer shell (10), and the second roller (306) rolls in cooperation with the inner wall of the outer shell (10).

7. The dust separation and filtration device for powder coating according to claim 1, characterized in that, The flushing mechanism (40) includes water outlets (402) that are fixedly connected at equal intervals to the bottom of each rotating rod (201). A water inlet pipe (401) is fixedly connected to one end of the rotating rod (201) away from the lever (205). The water inlet pipe (401) is in communication with the interior of the rotating rod (201).

8. A dust separation and filtration device for powder coating according to claim 7, characterized in that, The flushing mechanism (40) also includes a water storage tank (404) fixedly connected to the bottom of the funnel (208), and the water storage tank (404) is connected to the funnel (208). A water pump (403) is fixedly connected to the outside of the water storage tank (404). The water inlet of the water pump (403) is connected to the water storage tank (404), and the water outlet of the water pump (403) is fixedly connected to the end of the water inlet pipe (401) away from the rotating rod (201).

9. A dust separation and filtration device for powder coating according to claim 1, characterized in that, The closing mechanism (50) includes a baffle (501) fixedly connected to the inner wall of the outer shell (10), and the baffle (501) extends to the bottom of the square plate (204), the lower surface of the square plate (204) and the upper surface of the baffle (501) overlapping each other.

10. A dust separation and filtration device for powder coating according to claim 9, characterized in that, The closing mechanism (50) further includes a fixing block (502) fixedly connected to the inner wall of the outer shell (10). The fixing block (502) is vertically slidably connected to a slide rod (503). A limit block (505) is fixedly connected to the side of the slide rod (503) near the bottom. A compression spring (504) is also sleeved on the outside of the slide rod (503), and the compression spring (504) is located between the limit block (505) and the fixing block (502). The bottom of the slide rod (503) is fixedly connected to the upper surface of the square plate (204). A rotating shaft (506) is also rotatably connected to the side wall of the outer shell (10). One end of the rotating shaft (506) extends to the outside of the outer shell (10). A circular plate (507) is eccentrically fixedly connected to one end of the rotating shaft (506), and a knob (508) is fixedly connected to the other end of the rotating shaft (506).

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