Dust filtering treatment device for coating production

Abstract

The invention discloses a dust filtration treatment device for coating production, and belongs to the technical field of dust filtration. A plurality of groups of outer filtration holes are formed in the outer wall of a main shell, and a transfer bin is formed between the main shell and an inner shell; the inner scraping mechanism comprises a rotating part, a plurality of groups of inner scraping plates are movably mounted on the inner wall of the rotating part, symmetrical linkage gear rings are further movably mounted in the rotating part, and a plurality of groups of extrusion parts are arranged on the inner walls of the linkage gear rings; the outer scraping mechanism comprises a cleaning gear ring movably arranged on the inner wall of the main shell, and a linkage piece used for cleaning the outer filter holes and intermittently discharging the coating particles is fixedly installed at the bottom of the cleaning gear ring. Through the outer scraping mechanism, the outer filter holes can be cleaned in a reciprocating mode, coating particles can be intermittently discharged, and the situation that airflow enters the bottom of the main shell to interfere and blow the stored particles is avoided. Wherein the length of the upper baffle plate is larger than that of the lower baffle plate, and the safety and stability of the filtering device are improved through the design.

Description

Technical Field

[0001] The invention relates to the technical field of dust filtration, in particular to a dust filtration treatment device for coating production. Background Art

[0002] Paint has decorative functions, protective functions and habitability improvement functions, and the proportion of each function varies depending on the purpose of use. Architectural coatings generally include primary film-forming substances, such as natural resins, artificial resins and synthetic resins; secondary film-forming substances, such as three types of coloring pigments, extracted pigments and anti-rust pigments; auxiliary film-forming substances, such as rosin water, alcohol, gasoline and other solvents and various additives. When solid coatings are produced, the air in the production workshop needs to be filtered and purified through filtering equipment to prevent large amounts of dust from being inhaled into the lungs of operators and causing harm to their bodies.

[0003] The patent application with the publication number CN118925326A discloses a dust filtering device for cellulose production, including a liquid storage tank, and a filter chamber and a separation chamber respectively fixedly mounted on the liquid storage tank, wherein a sealing cover is fixedly connected above the filter chamber. The fiber cotton in the collection basket and the fiber dust in the collection bag are pressed together by a heat insulation plate, so that the fiber cotton and the fiber dust are dried and extruded, and the fiber dust extruded in the collection bag on the heat insulation plate is taken out by opening the upper opening and closing sealing plate, and the dried and formed fiber dust is used for cellulose production, and then the collection basket is taken out from the fiber filter tube, and the heat insulation board and fiber cotton in the collection basket are taken out, at which time the water vapor generated by the combustion of the ethanol solution condenses into a small amount of water droplets and flows into the collection basket to moisten the fiber cotton, so as to prevent the formed fiber cotton from drying and expanding, and reduce the generation and adsorption of static electricity and dust, so as to facilitate the transportation and use of the fiber cotton in the next step of processing.

[0004] However, the processing efficiency of the dust filtering device disclosed above is general, and it cannot perform multiple filtration and purification on the dust in the air. Moreover, the dust is easy to clog the filter after long-term use. There is a lack of a linked high-efficiency scraping structure to clean and collect the dust, so as to reuse the dusty paint. Summary of the invention

[0005] The purpose of the present invention is to provide a dust filtering and processing device for paint production in order to solve the problems that the existing dust filtering devices have general processing efficiency, cannot perform multiple filtration and purification on the dust in the air, and the dust easily clogs the filter after long-term use, and lack an interconnected high-efficiency scraping structure to clean and collect the dust, so as to reuse the dusty paint.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: a dust filtering and processing device for paint production, comprising a main shell, an inner scraping mechanism and an outer scraping mechanism, wherein a plurality of groups of outer filter holes are provided on the outer wall of the main shell, and an outer shell connected to the outer filter holes is installed on the outer wall of the main shell; an annular inner shell is also fixedly provided on the inner wall of the main shell, and a transfer bin is formed between the main shell and the inner shell; a conical platform is fixedly provided on the top of the inner shell, and a plurality of groups of filter cartridges are installed on the conical platform; the inner scraping mechanism is rotatably provided on the conical platform and is connected to the inner scraping mechanism. The filter cartridge is coaxially arranged; the inner scraping mechanism comprises a rotating member, on the inner wall of which a plurality of inner scrapers are movably mounted, and a symmetrical linkage gear ring is also movably mounted inside the rotating member, on the inner wall of which a plurality of extrusion portions are arranged; when the filter cartridge needs to be disassembled or assembled, the extrusion portions on the linkage gear ring squeeze the inner scrapers and separate them from the inner wall of the filter cartridge; the outer scraping mechanism comprises a cleaning gear ring movably arranged on the inner wall of the main shell, and a linkage member for cleaning the outer filter holes and intermittently discharging paint particles is fixedly mounted at the bottom of the cleaning gear ring.

[0007] As a further solution of the present invention: a plurality of installation cavities cooperating with the rotating part are provided on the conical platform, and a lower limit seat is arranged on the top of the installation cavity; a top cover is installed on the top of the main shell body, a main air intake pipe is arranged in the middle of the top cover, a plurality of sub-air intake pipes are arranged at the bottom of the main air intake pipe, an upper limit seat cooperating with the lower limit seat is fixedly arranged at the bottom of the sub-air intake pipe, and the filter cartridge is movably installed between the upper limit seat and the lower limit seat.

[0008] As a further solution of the present invention: an exhaust pipe is arranged on the outer shell, and a control panel is also arranged on the outer wall of the outer shell.

[0009] As a further solution of the present invention: a storage cone is fixedly arranged at the bottom of the conical platform, a feed pipe is arranged at the bottom of the storage cone, and a control valve is installed on the feed pipe.

[0010] As a further solution of the present invention: a limiting groove is provided on the outer wall of the installation cavity, and a positioning convex ring cooperating with the limiting groove is provided on the outer wall of the rotating member; a driven gear is fixedly provided at the bottom of the rotating member, a first cleaning motor is installed at the bottom of the conical table, and a driving gear 1 meshing with the driven gear is installed at the output end of the first cleaning motor.

[0011] As a further solution of the present invention: a plurality of sliding grooves are provided on the inner wall of the rotating part, symmetrical reset grooves are provided on the upper and lower sides of the sliding grooves, a sliding arm slidably arranged in the sliding grooves is fixedly arranged on the outer wall of the inner scraper plate, a symmetrical reset spring is also connected to the outer wall of the inner scraper plate, the end of the reset spring is connected to the inner wall of the reset groove, and a scraping portion is provided on the side of the inner scraper plate.

[0012] As a further solution of the present invention: a rotating bin located on the upper and lower sides of the sliding groove is provided inside the rotating member, and the linkage gear ring is movably installed in the rotating bin; symmetrical ring rails are provided on the upper and lower inner walls of the rotating bin, and grooves matching the linkage gear ring are provided on the upper and lower sides of the linkage gear ring; a linkage cavity connected to the rotating bin is also provided inside the rotating member, a dual-axis motor is installed in the linkage cavity, and an extrusion gear meshing with the linkage gear ring is installed at the output end of the dual-axis motor.

[0013] As a further solution of the present invention: a shielding ring for sealing the transfer bin is arranged on the outer wall of the inner shell body, a plurality of groups of first discharge ports are arranged at intervals on the shielding ring, and a plurality of groups of second discharge ports are arranged at the bottom of the transfer bin; a plurality of groups of outer scrapers are arranged on the linkage member, an intermittent discharge ring is arranged at the bottom of the outer scraper, a plurality of groups of upper shielding plates cooperating with the first discharge port are arranged on the inner wall of the intermittent discharge ring, and a plurality of groups of lower shielding plates cooperating with the second discharge port are also arranged on the inner wall of the intermittent discharge ring.

[0014] As a further solution of the present invention: a rotating cavity cooperating with the intermittent feeding ring is further provided on the inner wall of the main shell, a mounting convex ring is arranged on the inner wall of the main shell, and a mounting groove cooperating with the cleaning gear ring is provided on the outer wall.

[0015] As a further solution of the present invention: an annular hanger is fixedly arranged on the inner wall of the main shell, the cleaning gear ring is rotatably arranged in the hanger, a second cleaning motor is also installed on the inner wall of the hanger, and a driving gear 2 meshing with the cleaning gear ring is installed at the output end of the second cleaning motor.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can perform double filtration on the air through the filter cartridge and the outer filter hole. When the filter cartridge filters the air for the first time, a small amount of paint will adhere to its inner wall. During the scraping operation, the rotating part will drive multiple groups of inner scrapers to rotate freely under the drive of the first cleaning motor. At this time, the paint particles scraped off will fall into the storage cone below. When the filter cartridge needs to be replaced, the dual-axis motor drives the linkage gear ring to rotate, and the extrusion part will squeeze the outer wall of the inner scraper. At this time, the sliding arm moves along the sliding groove toward the center position of the rotating part to separate from the inner wall of the filter cartridge. This design improves the practicality and freedom of the dust filtering and processing device used in paint production.

[0017] 2. The present invention can reciprocally clean the outer filter holes and intermittently discharge the paint particles through the external scraping mechanism, so as to prevent the airflow from entering the bottom of the main shell and interfering with and blowing the stored particles. The length of the upper baffle plate is greater than that of the lower baffle plate. When the lower baffle plate blocks the second discharge port, the upper baffle plate overlaps with the baffle ring and the first discharge port is opened. The scraped residue falls into the transfer bin for temporary storage. When the upper baffle plate blocks the first discharge port, the second discharge port below is opened, and the residue temporarily stored in the transfer bin falls into the main shell. This design improves the safety and stability of the dust filtration and treatment device for paint production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 The present invention is a cross-sectional view Figure 1 ; Figure 3 yes Figure 2 A magnified view of the structure at center A; Figure 4 The present invention is a cross-sectional view Figure 2 ; Figure 5 It is a three-dimensional structural diagram of the inner scraping mechanism in the present invention; Figure 6 is a cross-sectional view of a rotating member in the present invention; Figure 7 It is a three-dimensional internal structure diagram of the internal scraping mechanism of the present invention; Figure 8 It is a three-dimensional structural diagram of the linkage gear ring in the present invention; Fig. 9 It is a three-dimensional structural diagram of the linkage member in the present invention.

[0019] Description of reference numerals: 1. Main shell; 101. Top cover; 102. Inner shell; 103. Transfer bin; 104. Conical platform; 105. Installation cavity; 106. Lower limit seat; 107. Main air inlet pipe; 108. Sub-air inlet pipe; 109. Upper limit seat; 110. Filter cartridge; 111. First cleaning motor; 112. Driving gear 1; 113. Limiting groove; 114. Storage cone; 115. Feeding pipe; 116. Control valve; 117. External filter hole; 118. Outer shell; 119. Exhaust pipe; 120. Control panel; 121. Shielding ring; 122. First feeding port; 123. Second feeding port; 124. Rotation cavity; 125. Installation convex ring; 2. Inner scraping mechanism; 201. Rotating member; 202. Positioning convex ring; 203. Driven gear; 204. Sliding groove; 205. Reset groove; 206. Inner scraper; 207. Scraping part; 208. Sliding arm; 209. Reset spring; 210. Rotating bin; 211. Ring rail; 212. Linkage cavity; 213. Dual-axis motor; 214. Extrusion gear; 215. Linkage gear ring; 216. Groove; 217. Extrusion part; 3. External scraping mechanism; 301. Cleaning gear ring; 302. Hanger; 303. Second cleaning motor; 304. Driving gear 2; 305. Mounting groove; 306. Linkage member; 307. External scraper; 308. Intermittent unloading ring; 309. Upper baffle plate; 310. Lower baffle plate. DETAILED DESCRIPTION

[0020] The following will be combined with the attached Figures 1 to 9 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present invention provides a dust filtering and processing device for coating production through improvement. Figure 1-Figure 9As shown, it includes a main shell 1, an inner scraping mechanism 2 and an outer scraping mechanism 3. A plurality of outer filter holes 117 are provided on the outer wall of the main shell 1, and an outer shell 118 connected with the outer filter holes 117 is installed on the outer wall of the main shell 1; an annular inner shell 102 is fixedly provided on the inner wall of the main shell 1, and a transfer bin 103 is formed between the main shell 1 and the inner shell 102; a conical platform 104 is fixedly provided on the top of the inner shell 102, and a plurality of filter cartridges 110 are installed on the conical platform 104; the inner scraping mechanism 2 is rotatably provided on the conical platform 104 and is coaxially provided with the filter cartridge 110; the inner scraping mechanism 2 includes a rotating member 201, multiple groups of inner scrapers 206 are movably installed on the inner wall of the rotating member 201, and a symmetrical linkage gear ring 215 is also movably installed inside the rotating member 201, and multiple groups of extrusion parts 217 are arranged on the inner wall of the linkage gear ring 215; when the filter cartridge 110 needs to be disassembled, the extrusion part 217 on the linkage gear ring 215 squeezes the inner scraper 206 and separates it from the inner wall of the filter cartridge 110; the external scraping mechanism 3 includes a cleaning gear ring 301 movably arranged on the inner wall of the main shell 1, and a linkage part 306 for cleaning the external filter hole 117 and intermittently discharging the paint particles is fixedly installed at the bottom of the cleaning gear ring 301.

[0022] In this embodiment: the dust filtering and processing device for coating production is mainly divided into three parts: the main housing 1, the inner scraping mechanism 2 and the outer scraping mechanism 3. When the device is in use, the air to be treated is first introduced into the interior of the main housing 1 through the main air inlet pipe 107. The air to be treated is diverted to the sub-air inlet pipe 108 and enters the interior of the filter cartridge 110. The air preliminarily filtered by the filter cartridge 110 is purified again through the outer filter hole 117 and enters the outer housing 118, and is finally discharged through the exhaust pipe 119. When the inner scraping mechanism 2 is started, the inner scraper 206 will reciprocate and clean the particles remaining on the inner wall of the filter cartridge 110. The fallen particles fall into the storage cone 114. When the content of particles in the storage cone 114 reaches a preset amount, the control valve 116 is opened and made to fall to the bottom of the main housing 1. When the cleaning gear ring 301 is started, the outer scraper 307 will reciprocately clean the particles remaining on the inner wall of the main shell 1. The cleaned particles are temporarily stored in the transfer bin 103 and intermittently discharged to the bottom of the main shell 1 under the action of the linkage 306.

[0023] See attached Figure 2 and attached Figure 4A plurality of mounting cavities 105 cooperating with the rotating member 201 are provided on the conical platform 104, and a lower limit seat 106 is arranged on the top of the mounting cavity 105; a top cover 101 is installed on the top of the main shell 1, a main air inlet pipe 107 is arranged in the middle of the top cover 101, and a plurality of sub-air inlet pipes 108 are arranged at the bottom of the main air inlet pipe 107, an upper limit seat 109 cooperating with the lower limit seat 106 is fixedly arranged at the bottom of the sub-air inlet pipe 108, and a filter cartridge 110 is movably installed between the upper limit seat 109 and the lower limit seat 106.

[0024] In this embodiment, in order to improve the initial filtration efficiency of the air, multiple groups of sub-inlet pipes 108 and filter cartridges 110 are designed. In order to facilitate the replacement and disassembly of the filter cartridge 110, an upper limit seat 109 and a lower limit seat 106 structure that cooperate with each other are designed.

[0025] See attached Figure 1 An exhaust pipe 119 is disposed on the outer shell 118 , and a control panel 120 is also disposed on the outer wall of the outer shell 118 .

[0026] In this embodiment, in order to discharge the air after secondary purification, an exhaust pipe 119 is designed. In order to control the operation of the equipment, a control panel 120 is designed.

[0027] See attached Figure 2 and attached Figure 4 A storage cone 114 is fixedly provided at the bottom of the conical platform 104 , a feed pipe 115 is provided at the bottom of the storage cone 114 , and a control valve 116 is installed on the feed pipe 115 .

[0028] In this embodiment: during the initial filtering, in order to prevent the airflow from disturbing the paint particles stored at the bottom of the main housing 1, a storage cone 114 is designed to temporarily store the scraped particles.

[0029] See attached Figure 4 -Attached Figure 5 A limiting groove 113 is provided on the outer wall of the mounting cavity 105, and a positioning convex ring 202 cooperating with the limiting groove 113 is provided on the outer wall of the rotating member 201; a driven gear 203 is fixedly provided at the bottom of the rotating member 201, and a first cleaning motor 111 is installed at the bottom of the conical platform 104, and a driving gear 112 meshing with the driven gear 203 is installed at the output end of the first cleaning motor 111.

[0030] In this embodiment, in order to ensure that the rotating member 201 is movably arranged in the installation cavity 105, a mutually matching limiting groove 113 and positioning convex ring 202 structure are designed. In order to drive the rotating member 201 to rotate automatically, a first cleaning motor 111 structure is designed.

[0031] See attached Figure 6 -Attached Figure 8 A plurality of sliding grooves 204 are provided on the inner wall of the rotating member 201, symmetrical reset grooves 205 are provided on the upper and lower sides of the sliding grooves 204, a sliding arm 208 slidably arranged in the sliding grooves 204 is fixedly arranged on the outer wall of the inner scraper 206, a symmetrical reset spring 209 is also connected to the outer wall of the inner scraper 206, the end of the reset spring 209 is connected to the inner wall of the reset groove 205, and a scraping portion 207 is provided on the side of the inner scraper 206.

[0032] In this embodiment, when the linkage gear ring 215 rotates counterclockwise, the inner scraper 206 moves toward the middle of the rotating member 201 along the sliding groove 204 under the pressure of the pressing portion 217, and the inner diameter of the inner scraper 206 is reduced and separated from the filter cartridge 110, so as to facilitate the replacement of the filter cartridge 110. When the linkage gear ring 215 rotates clockwise, the pressing portion 217 separates from the inner scraper 206, and the inner scraper 206 moves toward the outside of the rotating member 201 along the sliding groove 204 under the drive of the return spring 209, and the inner diameter of the inner scraper 206 increases and abuts against the inner wall of the filter cartridge 110.

[0033] See attached Figure 6 -Attached Figure 8 A rotating bin 210 is provided inside the rotating member 201 and is located on the upper and lower sides of the sliding groove 204, and a linkage gear ring 215 is movably installed in the rotating bin 210; symmetrical ring rails 211 are provided on the upper and lower inner walls of the rotating bin 210, and grooves 216 cooperating therewith are provided on the upper and lower sides of the linkage gear ring 215; a linkage cavity 212 connected to the rotating bin 210 is also provided inside the rotating member 201, and a dual-axis motor 213 is installed in the linkage cavity 212, and an extrusion gear 214 meshing with the linkage gear ring 215 is installed at the output end of the dual-axis motor 213.

[0034] In this embodiment: In order to ensure that the linkage gear ring 215 rotates freely relative to the rotating chamber 210, a ring rail 211 and a groove 216 structure that cooperate with each other are designed. In order to drive the linkage gear rings 215 on the upper and lower sides to rotate synchronously, so as to further adjust the inner diameter of the inner scraper 206, a dual-axis motor 213 structure is designed. In the initial state, that is, when the inner scraper 206 abuts against the inner wall of the rotating member 201 and the inner diameter is the largest, the right-angle side of the extrusion portion 217 abuts against the outer wall of the inner scraper 206. This design can further improve the stability of the inner scraper 206 during rotation and scraping.

[0035] See attached Figure 2 -Attached Figure 3 and attached Fig. 9A shielding ring 121 for sealing the transfer bin 103 is provided on the outer wall of the inner shell body 102, and a plurality of groups of first discharge ports 122 are arranged at intervals on the shielding ring 121, and a plurality of groups of second discharge ports 123 are arranged at the bottom of the transfer bin 103; a plurality of groups of outer scrapers 307 are provided on the linkage member 306, and an intermittent discharge ring 308 is provided at the bottom of the outer scraper 307, and a plurality of groups of upper shielding plates 309 cooperating with the first discharge port 122 are provided on the inner wall of the intermittent discharge ring 308, and a plurality of groups of lower shielding plates 310 cooperating with the second discharge port 123 are also provided on the inner wall of the intermittent discharge ring 308.

[0036] In this embodiment: when the lower shielding plate 310 shields the second material discharge port 123, the upper shielding plate 309 overlaps the shielding ring 121 and the first material discharge port 122 is opened, and the scraped residue falls into the transfer bin 103 for temporary storage. When the upper shielding plate 309 shields the first material discharge port 122, the lower second material discharge port 123 is opened, and the residue temporarily stored in the transfer bin 103 falls into the main housing 1.

[0037] See attached Figure 2 -Attached Figure 3 A rotating cavity 124 cooperating with the intermittent feeding ring 308 is also provided on the inner wall of the main shell 1, a mounting convex ring 125 is provided on the inner wall of the main shell 1, and a mounting groove 305 cooperating with the cleaning gear ring 301 is provided on the outer wall.

[0038] In this embodiment: since the shielding ring 121 connects the inner wall of the main shell 1 and the outer wall of the inner shell 102, and the outer scraper 307 has a certain thickness, in order to improve the airtightness of the transfer bin 103, a rotating chamber 124 structure is designed. This structure can make the intermittent unloading ring 308 fit perfectly on the inner wall of the main shell 1.

[0039] See attached Figure 2 An annular hanger 302 is fixedly provided on the inner wall of the main shell 1, and the cleaning gear ring 301 is rotatably provided in the hanger 302. A second cleaning motor 303 is also installed on the inner wall of the hanger 302, and a driving gear 2 304 meshing with the cleaning gear ring 301 is installed at the output end of the second cleaning motor 303.

[0040] In this embodiment, in order to drive the cleaning gear ring 301 to rotate, thereby achieving cleaning of the outer filter hole 117 and intermittent material discharge, a second cleaning motor 303 structure is designed.

[0041] Working principle of the present invention: When the device is in use, the air to be treated is first introduced into the interior of the main housing 1 through the main air inlet pipe 107. The air to be treated is diverted to the sub-air inlet pipe 108 and enters the interior of the filter cartridge 110. The air preliminarily filtered by the filter cartridge 110 is purified again through the outer filter hole 117 and enters the outer housing 118, and is finally discharged through the exhaust pipe 119. When the inner scraping mechanism 2 is started, the inner scraper 206 will reciprocate to clean the particles remaining on the inner wall of the filter cartridge 110. The fallen particles fall into the storage cone 114. When the particle content in the storage cone 114 reaches a preset amount, the control valve 116 is opened and the particles fall to the bottom of the main housing 1. When the cleaning gear ring 301 is started, the outer scraper 307 will reciprocate to clean the particles remaining on the inner wall of the main housing 1. The cleaned particles are temporarily stored in the transfer bin 103 and intermittently discharged to the bottom of the main housing 1 under the action of the linkage 306.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A dust filtering and processing device for coating production, comprising a main housing (1), an inner scraping mechanism (2) and an outer scraping mechanism (3), characterized in that: The outer wall of the main shell (1) is provided with a plurality of groups of external filter holes (117), and an outer shell (118) connected to the external filter holes (117) is mounted on the outer wall of the main shell (1); an annular inner shell (102) is fixedly disposed on the inner wall of the main shell (1), and a transfer bin (103) is formed between the main shell (1) and the inner shell (102); a conical platform (104) is fixedly disposed on the top of the inner shell (102), and a plurality of groups of filter cartridges (110) are mounted on the conical platform (104); The inner scraping mechanism (2) is rotatably arranged on the conical platform (104) and is arranged coaxially with the filter cartridge (110); the inner scraping mechanism (2) comprises a rotating member (201), a plurality of groups of inner scraping plates (206) are movably mounted on the inner wall of the rotating member (201), a symmetrical linkage gear ring (215) is also movably mounted inside the rotating member (201), a plurality of groups of extrusion portions (217) are arranged on the inner wall of the linkage gear ring (215); when the filter cartridge (110) needs to be disassembled, the extrusion portions (217) on the linkage gear ring (215) squeeze the inner scraping plates (206) and separate them from the inner wall of the filter cartridge (110); The external scraping mechanism (3) comprises a cleaning gear ring (301) movably arranged on the inner wall of the main housing (1), and a linkage member (306) for cleaning the external filter holes (117) and intermittently discharging paint particles is fixedly mounted at the bottom of the cleaning gear ring (301).

2. A dust filtering and processing device for coating production according to claim 1, characterized in that: The conical platform (104) is provided with a plurality of installation cavities (105) cooperating with the rotating member (201), and a lower limit seat (106) is arranged at the top of the installation cavity (105); a top cover (101) is installed at the top of the main shell (1), a main air intake pipe (107) is arranged in the middle of the top cover (101), a plurality of sub-air intake pipes (108) are arranged at the bottom of the main air intake pipe (107), an upper limit seat (109) cooperating with the lower limit seat (106) is fixedly arranged at the bottom of the sub-air intake pipe (108), and the filter cartridge (110) is movably installed between the upper limit seat (109) and the lower limit seat (106).

3. The dust filtering and processing device for coating production according to claim 1 is characterized in that: An exhaust pipe (119) is provided on the outer shell (118), and a control panel (120) is also provided on the outer wall of the outer shell (118).

4. A dust filtering and processing device for coating production according to any one of claims 1 to 3, characterized in that: A storage cone (114) is fixedly arranged at the bottom of the conical platform (104), a feed pipe (115) is arranged at the bottom of the storage cone (114), and a control valve (116) is installed on the feed pipe (115).

5. The dust filtering and processing device for coating production according to claim 2 is characterized in that: A limiting groove (113) is provided on the outer wall of the installation cavity (105), and a positioning convex ring (202) cooperating with the limiting groove (113) is provided on the outer wall of the rotating member (201); a driven gear (203) is fixedly provided at the bottom of the rotating member (201), a first cleaning motor (111) is installed at the bottom of the conical platform (104), and a driving gear (112) meshing with the driven gear (203) is installed at the output end of the first cleaning motor (111).

6. A dust filtering and processing device for coating production according to any one of claims 1 to 3, characterized in that: The inner wall of the rotating member (201) is provided with a plurality of sliding grooves (204), and symmetrical reset grooves (205) are provided on the upper and lower sides of the sliding grooves (204). A sliding arm (208) is fixedly provided on the outer wall of the inner scraper (206) and is slidably arranged in the sliding grooves (204). A symmetrical reset spring (209) is also connected to the outer wall of the inner scraper (206), and the end of the reset spring (209) is connected to the inner wall of the reset groove (205). A scraping portion (207) is provided on the side of the inner scraper (206).

7. A dust filtering and processing device for coating production according to claim 6, characterized in that: The rotating member (201) is provided with a rotating bin (210) located at the upper and lower sides of the sliding groove (204), and the linkage gear ring (215) is movably installed in the rotating bin (210); symmetrical ring rails (211) are provided on the upper and lower inner walls of the rotating bin (210), and grooves (216) cooperating therewith are provided on the upper and lower sides of the linkage gear ring (215); the rotating member (201) is also provided with a linkage cavity (212) connected to the rotating bin (210), a dual-axis motor (213) is installed in the linkage cavity (212), and an extrusion gear (214) meshing with the linkage gear ring (215) is installed at the output end of the dual-axis motor (213).

8. The dust filtering and processing device for coating production according to claim 1 is characterized in that: A shielding ring (121) for sealing the transfer bin (103) is arranged on the outer wall of the inner shell (102); a plurality of groups of first discharge ports (122) are arranged at intervals on the shielding ring (121); and a plurality of groups of second discharge ports (123) are arranged at the bottom of the transfer bin (103); a plurality of groups of outer scrapers (307) are arranged on the linkage member (306); an intermittent discharge ring (308) is arranged at the bottom of the outer scraper (307); a plurality of groups of upper shielding plates (309) cooperating with the first discharge ports (122) are arranged on the inner wall of the intermittent discharge ring (308); and a plurality of groups of lower shielding plates (310) cooperating with the second discharge ports (123) are also arranged on the inner wall of the intermittent discharge ring (308).

9. A dust filtering and processing device for coating production according to claim 8, characterized in that: The inner wall of the main shell (1) is also provided with a rotating cavity (124) cooperating with the intermittent feeding ring (308), the inner wall of the main shell (1) is provided with a mounting convex ring (125), and the outer wall of the cleaning gear ring (301) is provided with a mounting groove (305) cooperating with the cleaning gear ring (301).

10. A dust filtering and processing device for coating production according to any one of claims 1 to 3, characterized in that: An annular hanger (302) is fixedly arranged on the inner wall of the main shell (1), and the cleaning gear ring (301) is rotatably arranged in the hanger (302). A second cleaning motor (303) is also installed on the inner wall of the hanger (302), and a driving gear 2 (304) meshing with the cleaning gear ring (301) is installed at the output end of the second cleaning motor (303).

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