A filtering device for coating production

Abstract

The present invention discloses a filtering device for paint production, which belongs to the technical field of filtering equipment. The top of the base frame is movably connected with a vibration frame, and the vibration frame is connected to the base frame through a vibration member; a feed plate is movably installed on the swing seat, and a feed hopper is arranged on the top of the feed plate; a flip shaft is fixedly arranged at the bottom of the feed hopper, and meshing parts cooperating with half gears are arranged at both ends of the rack; symmetrical drainage pipes are arranged on both sides of the feed bin, and multiple groups of fixed filter holes are opened at the ends of the drainage pipes; an arc-shaped connecting plate coaxially arranged with the drainage pipe is fixedly arranged on the outside of the support frame, and a storage cavity is opened inside the arc-shaped connecting plate, and a moving filter is rotatably arranged in the storage cavity. When the present invention needs to double filter the paint, the rotating motor is started and the moving filter is driven to rotate. At this time, the paint passes through the fixed filter holes and the moving filter holes in turn to complete the double filtration. When only a single filtration is required, the moving filter is driven to retract into the storage cavity. This design improves the filtering efficiency and filtering effect.

Description

Technical Field

[0001] The invention relates to the technical field of filtering equipment, in particular to filtering equipment used for coating production. Background Art

[0002] The traditional name for coatings in China is paint. The so-called coating is applied to the surface of the object to be protected or decorated, and can form a continuous film that is firmly attached to the coated object. It is usually a viscous liquid made of resin, oil, or emulsion, with or without pigments, fillers, and corresponding additives, and is prepared with organic solvents or water. In the process of producing coatings, in order to ensure its quality and performance, filtering equipment is usually used to remove impurities. This filtration process is necessary because it can ensure the consistency and stability of the coating, thereby meeting the needs of various application scenarios.

[0003] The patent application with the publication number CN115300966A discloses an automatic filtering device in the production of polyurethane waterproof coating, including a filter tank, a feeding pipe is provided on one side of the upper end of the filter tank, a discharge pipe is provided at the bottom of the filter tank, and a fixedly connected partition plate is provided in the middle of the filter tank, a plurality of separation holes are provided on the partition plate, and a filter screen barrel connected and in a cylindrical shape is provided in the separation holes at the bottom of the separation plate, a rotatable rotating shaft is provided in the middle of the filter screen barrel, and a plurality of fixedly connected scrapers for scraping impurities from the inner wall of the filter screen barrel are provided on the rotating shaft located in the filter screen barrel. The design of the rotating shaft and the scraper can utilize the rotation of the rotating shaft to drive the scraper to rotate in the filter screen barrel, thereby scraping impurities on the inner wall surface of the filter screen barrel, effectively preventing the filter screen barrel from being blocked and ensuring the overall filtering efficiency.

[0004] However, the above disclosed paint filtering device has a general degree of automation, low processing efficiency, cannot perform double filtering on the paint, and cannot adjust the number of filtering times according to actual needs, and lacks an effective filter cartridge adjustment structure. Summary of the invention

[0005] The purpose of the present invention is to provide a filtering device for paint production in order to solve the problems that the existing paint filtering device has a general degree of automation, low processing efficiency, cannot perform double filtering of the paint, cannot adjust the number of filtration times according to actual needs, and lacks an effective filter cartridge adjustment structure.

[0006] To achieve the above-mentioned purpose, the technical solution of the present invention is: a filtering device for paint production, including a primary screening mechanism and a filtering mechanism, the primary screening mechanism including a base frame, the top of the base frame is movably connected with a vibration frame, a plurality of groups of vibration members are connected to the side outer wall of the base frame, and the vibration frame is connected to the base frame through the vibration members; a swing seat is provided at the top diagonal of the vibration frame, a discharge plate is movably mounted on the swing seat, and a discharge hopper is provided on the top of the discharge plate; a slide groove is provided on the side of the vibration frame, a rack is slidably provided in the slide groove, a flip shaft movably provided in the swing seat is fixedly provided at the bottom of the discharge hopper, and the outer side of the flip shaft A half gear is installed, and both ends of the rack are provided with meshing parts that cooperate with the half gear; the filtering mechanism includes a lower hopper located below the lower hopper, and symmetrical drainage pipes are provided on both sides of the lower hopper, and multiple groups of fixed filter holes are opened at the end of the drainage pipe; a support frame is also installed on the drainage pipe, and an arc-shaped connecting plate coaxially arranged with the drainage pipe is fixedly provided on the outer side of the support frame, and a baffle that cooperates with the end of the drainage pipe is fixedly provided on the outer side of the arc-shaped connecting plate, and a storage cavity is opened inside the arc-shaped connecting plate, and a moving filter screen is rotatably arranged in the storage cavity, and the moving filter screen is provided with moving filter holes with a diameter smaller than the fixed filter holes.

[0007] As a further solution of the present invention: a mounting plate 1 is arranged on the side wall of the base frame, a mounting plate 2 is arranged on the side wall of the vibration frame, and the vibration member is connected between the mounting plate 1 and the mounting plate 2; an oscillation motor is also installed on the base frame, an active swing arm is connected to the output end of the oscillation motor, a driven swing arm is connected to the side wall of the vibration frame, and a terminal end of the active swing arm is connected to the vibration frame via the driven swing arm.

[0008] As a further solution of the present invention: a through limit cavity is opened on the swing seat, a limit block is slidably arranged in the limit cavity, and the limit blocks located on the same side are connected by a connecting plate; a double-axis cylinder is installed in the middle of the vibration frame, and the output end of the double-axis cylinder is fixedly connected to the connecting plates on both sides.

[0009] As a further solution of the present invention: a through cavity is opened in the middle of the slide slot, and a flip cylinder is also installed at the bottom of the vibration frame. The output end of the flip cylinder passes through the through cavity and is fixedly connected to the rack.

[0010] As a further solution of the present invention: a protective cover located above the dual-axis cylinder is also installed in the middle of the vibration frame, and an arc plate is also provided on one side of the lower hopper, and a plurality of groups of slots are provided on the arc plate; and collection box 1 and collection box 2 are respectively provided on both sides of the base frame.

[0011] As a further solution of the present invention: the support frame is provided with an inner installation cavity cooperating with the drainage tube, and the baffle is provided with an outer installation cavity cooperating with the end of the drainage tube; a discharge pipe is also provided at the end of the drainage tube, and a control valve is installed on the discharge pipe.

[0012] As a further solution of the present invention: a rotating groove connected to the storage chamber is opened on the support frame, a gear ring is fixedly connected to one side of the moving filter, and the moving filter is rotatably arranged on the support frame through the gear ring; a rotating motor is also installed on the support frame, and a driving gear meshing with the gear ring is installed on the output end of the rotating motor.

[0013] As a further solution of the present invention: a sealing track is fixedly provided on the outer side of the moving filter screen, and a sealing groove cooperating with the sealing track is opened on the inner wall of the baffle.

[0014] As a further solution of the present invention: a sliding seat is provided on the top of the drainage tube, a linkage scraper is slidably provided on the sliding seat, a scraper cylinder is also installed on the support frame, and the output end of the scraper cylinder is fixedly connected to the linkage scraper.

[0015] As a further solution of the present invention: the linked scraper includes an inner ring and an outer ring, the inner ring abuts against the inner wall of the drainage tube; the outer ring consists of a lower scraper ring and an upper scraper ring, the lower scraper ring abuts against the inner wall of the moving filter, and the upper scraper ring abuts against the inner wall of the arc-shaped connecting plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can perform vibration screening on the rough-processed paint through the primary screening mechanism, and separate some larger agglomerated floccules and debris in the paint. Under the cooperation of the active swing arm and the driven arm, the vibration frame will swing back and forth relative to the base frame. After the screening is completed, when the lower hopper needs to flip to the right to discharge materials, the double-axis cylinder is started to make the limit block on the right slide outward and disengage from the flip shaft on the right, then the limit block on the left slides inward and limits the flip shaft on the left, and finally the flip cylinder is started to make the rack slide to the left. When the lower hopper needs to flip to the left to discharge materials, the double-axis cylinder is started to make the limit block on the left slide inward and limit the flip shaft on the left, then the limit block on the right slides outward and disengages from the flip shaft on the right, and finally the flip cylinder is started to make the rack slide to the right. This design is ingenious and effective, which improves the automation level and processing effect of the filtering equipment used for paint production.

[0018] 2. The present invention can filter the paint after the initial screening through the fixed filter holes on the drainage tube. When the paint needs to be double filtered, the rotary motor is started and the moving filter is driven to rotate. At this time, the paint passes through the fixed filter holes and the moving filter holes in turn to complete the double filtration. When only a single filtration is required, the rotary motor is started and the moving filter is driven to retract into the storage chamber. This design improves the filtration efficiency and filtration effect of the filtration equipment used for paint production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 It is an internal three-dimensional structure diagram of the present invention;

[0022] Figure 3 yes Figure 2 A magnified view of the structure at center A;

[0023] Figure 4 It is a three-dimensional structural diagram of the vibration frame in the present invention;

[0024] Figure 5 It is a three-dimensional structural diagram of the blanking plate in the present invention;

[0025] Figure 6 It is a three-dimensional structural diagram of the moving filter screen and the arc-shaped connecting plate in the present invention;

[0026] Figure 7 It is a three-dimensional structural diagram of the arc-shaped connecting plate in the present invention;

[0027] Figure 8 It is a three-dimensional structural diagram of the motion filter in the present invention;

[0028] Fig. 9 It is a partial structural cross-sectional view of the present invention;

[0029] Fig.10 It is a three-dimensional structural diagram of the linkage scraping member in the present invention.

[0030] Description of reference numerals:

[0031] 1. Preliminary screening mechanism; 101. Base frame; 102. Mounting plate 1; 103. Vibration frame; 104. Mounting plate 2; 105. Vibration member; 106. Swing seat; 107. Limiting cavity; 108. Unloading plate; 109. Turning shaft; 110. Unloading hopper; 111. Half gear; 112. Slide; 113. Rack; 114. Meshing part; 115. Turning cylinder; 116. Through cavity; 117. Limiting block; 118. Connecting plate; 119. Double-axis cylinder; 120. Protective cover; 121. Oscillating motor; 122. Active swing arm; 123. Driven swing arm; 124. Arc plate; 125. Slotting; 126. Collection box 1; 127. Collection box 2;

[0032] 2. Filter mechanism; 201. Feed bin; 202. Drainage pipe; 203. Fixed filter hole; 204. Sliding seat; 205. Discharge pipe; 206. Control valve; 207. Support frame; 208. Inner mounting cavity; 209. Baffle; 210. Arc-shaped connecting plate; 211. Storage cavity; 212. Rotating groove; 213. Moving filter; 214. Gear ring; 215. External mounting cavity; 216. Rotating motor; 217. Driving gear; 218. Sealing track; 219. Sealing groove; 220. Scraping cylinder; 221. Linkage scraping member; 222. Inner ring; 223. Outer ring; 224. Moving filter hole; 225. Lower scraping ring; 226. Upper scraping ring. DETAILED DESCRIPTION

[0033] The following will be combined with the attached Figures 1 to 10 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.

[0034] The present invention provides a filtering device for coating production by improvement, such as Figure 1-Figure 10As shown, it includes a primary screening mechanism 1 and a filtering mechanism 2, the primary screening mechanism 1 includes a base frame 101, the top of the base frame 101 is movably connected with a vibration frame 103, a plurality of vibration members 105 are connected to the side outer wall of the base frame 101, and the vibration frame 103 is connected to the base frame 101 through the vibration members 105; a swing seat 106 is arranged at the top diagonal of the vibration frame 103, a blanking plate 108 is movably installed on the swing seat 106, and a blanking hopper 110 is arranged on the top of the blanking plate 108; a chute 112 is opened on the side of the vibration frame 103, a rack 113 is slidably arranged in the chute 112, a flip shaft 109 movably arranged in the swing seat 106 is fixedly arranged at the bottom of the blanking hopper 110, a semi-gear 111 is installed on the outer side of the flip shaft 109, and both sides of the rack 113 are fixedly arranged. The end is provided with a meshing portion 114 that cooperates with the half gear 111; the filtering mechanism 2 includes a lower hopper 201 located below the lower hopper 110, and symmetrical drainage pipes 202 are provided on both sides of the lower hopper 201, and multiple groups of fixed filter holes 203 are provided at the end of the drainage pipe 202; a support frame 207 is also installed on the drainage pipe 202, and an arc-shaped connecting plate 210 coaxially arranged with the drainage pipe 202 is fixedly provided on the outer side of the support frame 207, and a baffle 209 that cooperates with the end of the drainage pipe 202 is fixedly provided on the outer side of the arc-shaped connecting plate 210, and a storage cavity 211 is provided inside the arc-shaped connecting plate 210, and a moving filter screen 213 is rotatably provided in the storage cavity 211, and a moving filter hole 224 with a diameter smaller than the fixed filter hole 203 is provided on the moving filter screen 213.

[0035] In this embodiment: the filtering device for paint production is mainly divided into two parts: a primary screening mechanism 1 and a filtering mechanism 2. When the device is in use, first add the roughly processed paint into the lower hopper 110. Then start the oscillation motor 121. Under the linkage of the active swing arm 122 and the driven swing arm 123 and the limiting effect of the vibration frame 103, the lower hopper 110 will oscillate back and forth with a small amplitude. At this time, some floccules or harder particles remaining in the paint will remain in the lower hopper 110, and the paint after the primary screening will fall into the lower hopper 201 below. When it is necessary to unload, start the double-axis cylinder 119 and the flip cylinder 115 and drive the lower hopper 110 to flip to both sides. When the lower hopper 110 needs to be turned over to the right side for unloading, the double-axis cylinder 119 is started to make the right limit block 117 slide outward and disengage from the right flip shaft 109, then the left limit block 117 slides inward and limits the left flip shaft 109, and finally the flip cylinder 115 is started to make the rack 113 slide to the left side, at which time the larger floccules in the paint will fall into the right collection box 1 126 through the slot 125. When the lower hopper 110 needs to be turned over to the left side for unloading, the double-axis cylinder 119 is started to make the left limit block 117 slide inward and limit the left flip shaft 109, then the right limit block 117 slides outward and disengages from the right flip shaft 109, and finally the flip cylinder 115 is started to make the rack 113 slide to the right side, at which time the particles in the paint will fall into the left collection box 2 127. When double filtering of the paint is required, the rotating motor 216 is started to drive the moving filter 213 to rotate, and when the moving filter 213 completely seals the bottom of the arc-shaped connecting plate 210, the paint is then double filtered through the fixed filter holes 203 and the moving filter holes 224 in sequence. When only a single filter is required, the rotating motor 216 is started to drive the moving filter 213 to retract into the storage chamber 211, and the bottom of the arc-shaped connecting plate 210 is completely exposed.

[0036] See attached Figure 2 -Attached Figure 3 A mounting plate 102 is arranged on the side wall of the base frame 101, a mounting plate 2 104 is arranged on the side wall of the vibration frame 103, and a vibration member 105 is connected between the mounting plate 102 and the mounting plate 2 104; an oscillation motor 121 is also installed on the base frame 101, an active swing arm 122 is connected to the output end of the oscillation motor 121, a driven swing arm 123 is connected to the side wall of the vibration frame 103, and the end of the active swing arm 122 is connected to the vibration frame 103 through the driven swing arm 123.

[0037] In this embodiment, in order to automatically drive the vibration frame 103 and the lower hopper 110 to vibrate, a vibration member 105 and an oscillation motor 121 structure that cooperate with each other are designed.

[0038] See attached Figure 2 -Attached Figure 3 A through-limiting cavity 107 is provided on the swing seat 106, and a limiting block 117 is slidably arranged in the limiting cavity 107. The limiting blocks 117 on the same side are connected by a connecting plate 118; a double-axis cylinder 119 is installed in the middle of the vibration frame 103, and the output end of the double-axis cylinder 119 is fixedly connected to the connecting plates 118 on both sides.

[0039] In this embodiment, since the flip shaft 109 is movably arranged on the swing seat 106, when the lower hopper 110 and the vibration frame 103 discharge materials to the left, the left flip shaft 109 needs to be limited. And when the lower hopper 110 and the vibration frame 103 discharge materials to the right, the right flip shaft 109 needs to be limited, so a double-axis cylinder 119 structure is designed, and the flip shaft 109 is limited by a limit block 117.

[0040] See attached Figure 2 -Attached Figure 4 A through cavity 116 is provided in the middle of the slide groove 112 , and a flip cylinder 115 is installed at the bottom of the vibration frame 103 . The output end of the flip cylinder 115 passes through the through cavity 116 and is fixedly connected to the rack 113 .

[0041] In this embodiment, in order to drive the rack 113 to slide along the slide groove 112, so as to realize the flipping of the lower hopper 110 and the vibration frame 103 in different directions, a flipping cylinder 115 structure is designed.

[0042] See attached Figure 1 -Attached Figure 2 A protective cover 120 located above the double-axis cylinder 119 is also installed in the middle of the vibration frame 103, and an arc plate 124 is also provided on one side of the lower hopper 110, and a plurality of groups of slots 125 are provided on the arc plate 124; a collection box 126 and a collection box 2 127 are respectively provided on both sides of the base frame 101.

[0043] In this embodiment: after the initial processing of the paint is completed, some floccules or hard particles will remain inside it. In order to avoid damage to the linkage scraper 221 by hard objects during subsequent filtration, pre-screening is required in advance. When the lower hopper 110 is turned to the right, the larger floccules in the paint will fall into the collection box 1 126 on the right through the slot 125. When the lower hopper 110 is turned to the left, the particles in the paint will fall into the collection box 2 127 on the left. Among them, the specifications of the slot 125 are larger than the specifications of the sieve holes at the bottom of the lower hopper 110.

[0044] See attached Figure 1 -Attached Figure 2An inner mounting cavity 208 cooperating with the drainage tube 202 is provided on the support frame 207, and an outer mounting cavity 215 cooperating with the end of the drainage tube 202 is provided on the baffle 209; a discharge pipe 205 is also provided at the end of the drainage tube 202, and a control valve 206 is installed on the discharge pipe 205.

[0045] In this embodiment, after the filtration is completed, some debris that is difficult to filter will remain on the inner wall of the drainage tube 202. In order to facilitate cleaning thereof, a discharge pipe 205 is designed.

[0046] See attached Figure 6 -Attached Fig. 9 A rotating groove 212 connected to the storage chamber 211 is provided on the support frame 207, and a ring gear 214 is fixedly connected to one side of the moving filter 213. The moving filter 213 is rotatably set on the support frame 207 through the ring gear 214; a rotating motor 216 is also installed on the support frame 207, and a driving gear 217 meshing with the ring gear 214 is installed at the output end of the rotating motor 216.

[0047] In this embodiment: when double filtering of the paint is required, the rotating motor 216 is started and the moving filter 213 is driven to rotate. When the moving filter 213 completely closes the bottom of the arc-shaped connecting plate 210, the paint is then double filtered through the fixed filter holes 203 and the moving filter holes 224 in sequence. When only a single filtration is required, the rotating motor 216 is started and the moving filter 213 is driven to retract into the storage chamber 211. At this time, the bottom of the arc-shaped connecting plate 210 is completely exposed. In order to ensure the smooth operation of the structure, the arc of the arc-shaped connecting plate 210 is greater than 180 degrees, the arc of the moving filter 213 is 180 degrees, and the rotating groove 212 does not penetrate the support frame 207 for 360 degrees, but is slightly less than 360 degrees.

[0048] See attached Figure 7 -Attached Figure 8 A sealing track 218 is fixedly provided on the outer side of the moving filter 213, and a sealing groove 219 cooperating therewith is opened on the inner wall of the baffle 209.

[0049] In this embodiment, in order to further improve the sealing performance, a sealing track 218 and a sealing groove 219 that cooperate with each other are designed to improve the sealing degree of the moving filter 213 and the baffle 209.

[0050] See attached Figure 8 -Attached Fig. 9 A sliding seat 204 is provided on the top of the drainage tube 202 , and a linkage scraping member 221 is slidably provided on the sliding seat 204 . A scraping cylinder 220 is also installed on the support frame 207 , and the output end of the scraping cylinder 220 is fixedly connected to the linkage scraping member 221 .

[0051] In this embodiment, since the viscosity of the coating is relatively high, a linkage scraping member 221 is designed to further improve the filtering efficiency.

[0052] See attached Figure 8 -Attached Fig.10 The linkage scraper 221 includes an inner ring 222 and an outer ring 223. The inner ring 222 abuts against the inner wall of the drainage tube 202; the outer ring 223 consists of a lower scraper ring 225 and an upper scraper ring 226. The lower scraper ring 225 abuts against the inner wall of the moving filter 213, and the upper scraper ring 226 abuts against the inner wall of the arc-shaped connecting plate 210.

[0053] In this embodiment: driven by the scraping cylinder 220, when the inner ring 222 reciprocates along the drainage tube 202, the inner ring 222 can reciprocate and scrape the fixed filter hole 203 on the drainage tube 202. When the outer ring 223 reciprocates along the arc-shaped connecting plate 210, the outer ring 223 can reciprocate and scrape the inner wall of the arc-shaped connecting plate 210 and the moving filter hole 224 on the moving filter screen 213. Since the diameters of the arc-shaped connecting plate 210 and the moving filter screen 213 are different, in order to maintain a better fit, the outer ring 223 is composed of a lower scraping ring 225 and an upper scraping ring 226.

[0054] In this embodiment: when the device is used, the rough-processed paint is first added to the lower hopper 110. Then the oscillation motor 121 is started, and under the linkage of the active swing arm 122 and the driven swing arm 123 and the limiting effect of the vibration frame 103, the lower hopper 110 will oscillate back and forth with a small amplitude. At this time, some floccules or harder particles remaining in the paint will remain in the lower hopper 110, and the paint after the initial screening will fall into the lower hopper 201 below. When it is necessary to unload, the double-axis cylinder 119 and the flip cylinder 115 are started and the lower hopper 110 is driven to flip to both sides. When the lower hopper 110 needs to be turned over to the right side for unloading, the double-axis cylinder 119 is started to make the right limit block 117 slide outward and disengage from the right flip shaft 109, then the left limit block 117 slides inward and limits the left flip shaft 109, and finally the flip cylinder 115 is started to make the rack 113 slide to the left side, at which time the larger floccules in the paint will fall into the right collection box 1 126 through the slot 125. When the lower hopper 110 needs to be turned over to the left side for unloading, the double-axis cylinder 119 is started to make the left limit block 117 slide inward and limit the left flip shaft 109, then the right limit block 117 slides outward and disengages from the right flip shaft 109, and finally the flip cylinder 115 is started to make the rack 113 slide to the right side, at which time the particles in the paint will fall into the left collection box 2 127. When double filtering of the paint is required, the rotating motor 216 is started to drive the moving filter 213 to rotate, and when the moving filter 213 completely seals the bottom of the arc-shaped connecting plate 210, the paint is then double filtered through the fixed filter holes 203 and the moving filter holes 224 in sequence. When only a single filter is required, the rotating motor 216 is started to drive the moving filter 213 to retract into the storage chamber 211, and the bottom of the arc-shaped connecting plate 210 is completely exposed.

[0055] 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 filtering device for coating production, comprising a primary screening mechanism (1) and a filtering mechanism (2), characterized in that: The primary screening mechanism (1) comprises a base frame (101), the top of the base frame (101) is movably connected to a vibration frame (103), a plurality of groups of vibration members (105) are connected to the side outer wall of the base frame (101), and the vibration frame (103) is connected to the base frame (101) via the vibration members (105); A swing seat (106) is provided at the top diagonal of the vibration frame (103), a material discharge plate (108) is movably mounted on the swing seat (106), and a material discharge hopper (110) is provided on the top of the material discharge plate (108); a slide groove (112) is provided on the side of the vibration frame (103), a rack (113) is slidably mounted in the slide groove (112), a flip shaft (109) movably mounted in the swing seat (106) is fixedly mounted at the bottom of the material discharge hopper (110), a half gear (111) is mounted on the outer side of the flip shaft (109), and meshing portions (114) cooperating with the half gear (111) are provided at both ends of the rack (113); The filtering mechanism (2) comprises a lower material bin (201) located below the lower material hopper (110), symmetrical drainage pipes (202) are arranged on both sides of the lower material bin (201), and multiple groups of fixed filter holes (203) are provided at the ends of the drainage pipes (202); A support frame (207) is also installed on the drainage tube (202); an arc-shaped connecting plate (210) coaxially arranged with the drainage tube (202) is fixedly arranged on the outer side of the support frame (207); a baffle (209) cooperating with the end of the drainage tube (202) is fixedly arranged on the outer side of the arc-shaped connecting plate (210); a storage cavity (211) is provided inside the arc-shaped connecting plate (210); a moving filter screen (213) is rotatably provided inside the storage cavity (211); and a moving filter hole (224) having a diameter smaller than that of the fixed filter hole (203) is provided on the moving filter screen (213).

2. A filtering device for coating production according to claim 1, characterized in that: A mounting plate 1 (102) is arranged on the side wall of the base frame (101), a mounting plate 2 (104) is arranged on the side wall of the vibration frame (103), and the vibration member (105) is connected between the mounting plate 1 (102) and the mounting plate 2 (104); an oscillation motor (121) is also installed on the base frame (101), an output end of the oscillation motor (121) is connected to an active swing arm (122), a side wall of the vibration frame (103) is connected to a driven swing arm (123), and a terminal end of the active swing arm (122) is connected to the vibration frame (103) via the driven swing arm (123).

3. A filtering device for coating production according to claim 1, characterized in that: The swing seat (106) is provided with a through-limiting cavity (107), a limiting block (117) is slidably arranged in the limiting cavity (107), and the limiting blocks (117) located on the same side are connected via a connecting plate (118); a double-axis cylinder (119) is installed in the middle of the vibration frame (103), and the output end of the double-axis cylinder (119) is fixedly connected to the connecting plates (118) on both sides.

4. The filtering device for coating production according to claim 1, characterized in that: A through cavity (116) is provided in the middle of the slide groove (112), and a turning cylinder (115) is also installed at the bottom of the vibration frame (103). The output end of the turning cylinder (115) passes through the through cavity (116) and is fixedly connected to the rack (113).

5. The filtering device for coating production according to claim 3, characterized in that: A protective cover (120) located above the dual-axis cylinder (119) is also installed in the middle of the vibration frame (103); an arc plate (124) is also provided on one side of the lower hopper (110); and a plurality of groups of slots (125) are provided on the arc plate (124); and a collection box 1 (126) and a collection box 2 (127) are respectively provided on both sides of the base frame (101).

6. The filtering device for coating production according to claim 1, characterized in that: The support frame (207) is provided with an inner mounting cavity (208) that cooperates with the drainage tube (202), and the baffle plate (209) is provided with an outer mounting cavity (215) that cooperates with the end of the drainage tube (202); a discharge pipe (205) is also provided at the end of the drainage tube (202), and a control valve (206) is installed on the discharge pipe (205).

7. The filtering device for coating production according to claim 1, characterized in that: The support frame (207) is provided with a rotation groove (212) which is in communication with the storage chamber (211); a gear ring (214) is fixedly connected to one side of the motion filter (213); the motion filter (213) is rotatably arranged on the support frame (207) via the gear ring (214); a rotating motor (216) is also installed on the support frame (207); a driving gear (217) meshing with the gear ring (214) is installed at the output end of the rotating motor (216).

8. The filtering device for coating production according to claim 7, characterized in that: A sealing track (218) is fixedly provided on the outer side of the moving filter screen (213), and a sealing groove (219) cooperating with the sealing track (218) is provided on the inner wall of the baffle plate (209).

9. A filtering device for coating production according to any one of claims 1 to 4, characterized in that: A sliding seat (204) is provided on the top of the drainage tube (202) and penetrates therethrough. A linkage scraping member (221) is slidably provided on the sliding seat (204). A scraping cylinder (220) is also mounted on the support frame (207). The output end of the scraping cylinder (220) is fixedly connected to the linkage scraping member (221).

10. A filtering device for coating production according to claim 9, characterized in that: The linkage scraper (221) comprises an inner ring (222) and an outer ring (223), wherein the inner ring (222) abuts against the inner wall of the drainage tube (202); the outer ring (223) comprises a lower scraper ring (225) and an upper scraper ring (226), wherein the lower scraper ring (225) abuts against the inner wall of the moving filter (213), and the upper scraper ring (226) abuts against the inner wall of the arc-shaped connecting plate (210).

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