Efficient filtering device for environment-friendly water-based ink production

Abstract

The invention relates to the technical field of ink production, in particular to an efficient filtering device for environment-friendly water-based ink production, which comprises a rack, a box body, a discharging pipe, a feeding box, a mounting box, a support plate, a filter screen and the like, the top of the rack is connected with the box body, the bottom of the box body is communicated with the discharging pipe, and the top of the box body is communicated with the feeding box; mounting boxes are connected to the left side and the right side of the box body, the mounting boxes are connected with the rack, two supporting plates are connected in the box body, the supporting plates extend into the mounting boxes, and two filter screens are placed at the tops of the two supporting plates and are connected with each other. Impurities in printing ink can be filtered through the filter screens, the filtered printing ink is discharged through the discharging pipe, the filter screens can be driven to move rightwards through the electric guide rails, the filter screen on the right side is moved into the mounting box on the right side, the filter screen on the left side is moved into the box body, the filter screens are rapidly replaced, and the working efficiency is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of ink production, and in particular to a high-efficiency filtering device for producing environmentally friendly water-based ink. Background Art

[0002] Environmentally friendly water-based ink is a more environmentally friendly printing ink than traditional solvent-based ink. It has the characteristics of reducing the emission of volatile organic compounds and high safety. During the ink production process, various particulate impurities may be mixed in, such as dust, pigment particle agglomerates, etc. In order to ensure the quality of the ink, the ink needs to be filtered to remove impurities in the ink.

[0003] The current impurity filtering device generally filters the impurities in the ink through a filter. As the equipment continues to run, the impurities on the filter will increase. Too many impurities will easily clog the filter, affecting the filtering efficiency of the filter, causing the filtering speed of impurities to slow down. The impurity filtering device does not have the function of automatically replacing the filter. Therefore, the filter needs to be replaced manually. The filter is installed inside the impurity filtering device, and the disassembly is cumbersome. In addition, the machine needs to be shut down during the replacement process, and impurity filtering cannot be performed continuously, thus affecting work efficiency. Summary of the invention

[0004] In order to overcome the shortcomings that the filter is installed inside the impurity filtering device, the disassembly is cumbersome, and the machine needs to be shut down during the replacement process, and impurities cannot be filtered continuously, thus affecting work efficiency, the present invention provides an environmentally friendly and high-efficiency filtering device for the production of water-based inks.

[0005] The technical solution is: an environmentally friendly water-based ink production high-efficiency filtering device, including a frame, a box, a discharge pipe, a feed box, an installation box, a support plate, a filter screen, an electric guide rail, a guide rod, a slide plate, a spring, a cleaning mechanism and a flushing mechanism. The top of the frame is connected to the box, the bottom of the box is connected to the discharge pipe, the top of the box is connected to the feed box, the left and right sides of the box are connected to the installation box, the installation box and the frame are connected, two support plates are connected to the box, the support plates extend into the installation box, two filter screens are placed on the top of the two support plates, the two filter screens are connected to each other, the filter screens slide through the box, and the box An electric guide rail is installed together with the installation box, and a guide rod is connected to the electric guide rail. The guide rod and the slider of the electric guide rail are slidably connected. Two slide plates are slidably connected to the guide rod, and a spring is connected between the slider of the electric guide rail and the slide plate. Openings are opened on the front and back sides of the installation box. The slide plate extends into the installation box from the front opening and is connected to the filter screen. The electric guide rail drives the slide plate to move through the spring, and the slide plate drives the filter screen to move, so that the filter screen is replaced. A cleaning mechanism for cleaning impurities on the filter screen is provided on the installation box, and a flushing mechanism for flushing the filter screen is provided on the cleaning mechanism.

[0006] Furthermore, the cleaning mechanism includes a guide rod, a scraper and a moving assembly. Two guide rods are connected in the installation box, the guide rods are located in the opening, and the two guide rods on the same installation box are slidably connected to the scraper. The moving assembly is used to drive the scraper to move.

[0007] Furthermore, the moving component includes a first rotating shaft, a first pulley, a second rotating shaft, a second pulley, a flat belt, a connecting block, a gear, a connecting plate and a rack. The first rotating shaft and the second rotating shaft are rotatably connected on the installation box, the first rotating shaft is connected to the first pulley, the second rotating shaft is connected to the second pulley, a flat belt is wound around the second pulley and the first pulley, the flat belt passes through the opening, the flat belt is connected to the connecting block, the connecting block is connected to the scraper, the second rotating shaft is connected to the gear, the slider of the electric guide rail is connected to the connecting plate, the connecting plate is connected to the rack, the rack will mesh with the gear during the movement and drive the gear to rotate, the gear drives the second rotating shaft and the second pulley to rotate, the second pulley drives the flat belt to rotate, the flat belt drives the scraper to move through the connecting block, and the scraper cleans the impurities on the filter screen.

[0008] Furthermore, the flushing mechanism includes a first hard pipe, a first nozzle, a first connecting pipe and a drain pipe. The scraper is connected to the first hard pipe, the bottom of the first hard pipe is connected to the first nozzle, the first hard pipe is connected to the first connecting pipe, and the installation box is connected to the drain pipe.

[0009] Furthermore, it also includes a mounting frame, an air suction fan and an activated carbon plate. The box body is connected to the mounting frame, and the air suction fan and the activated carbon plate are connected inside the mounting frame.

[0010] Furthermore, it also includes a second connecting pipe, a second hard pipe and a second nozzle. The second connecting pipe is connected in the installation box, the second connecting pipe is connected to the second hard pipe, and the top of the second hard pipe is connected to the second nozzle.

[0011] Furthermore, it also includes a collecting frame and a discharge pipe. The collecting frame is connected to the box body, and the scraper cleans the impurities on the filter screen. The impurities fall into the collecting frame through the opening, and the bottom of the collecting frame is connected to the discharge pipe.

[0012] Furthermore, it also includes an air blowing fan, and the installation box is equipped with an air blowing fan.

[0013] The beneficial effects are: 1. The present invention can filter impurities in ink through the filter screen, and the filtered ink is discharged through the discharge pipe. The filter screen can be driven to move to the right through the electric guide rail, and the filter screen on the right side is moved to the installation box on the right side, and the filter screen on the left side is moved into the box body, so that the filter screen can be quickly replaced to ensure work efficiency.

[0014] 2. The rack can drive the gear to rotate, the gear drives the second pulley to rotate, the second pulley drives the scraper forward through the flat belt, the scraper scrapes off the impurities on the filter so that it can be used next time. The filter can be directly replaced with higher continuity, thereby improving work efficiency. The first nozzle can spray water onto the filter to rinse the filter, which can clean the filter more cleanly.

[0015] 3. Water can be sprayed onto the filter through the second nozzle. Water sprayed onto the filter from bottom to top can flush out impurities stuck on the filter, thereby cleaning the filter more thoroughly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0017] Figure 2 A first cross-sectional view of the housing and the mounting box of the present invention is shown.

[0018] Figure 3 A second cross-sectional view of the housing and the mounting box of the present invention is shown.

[0019] Figure 4 A three-dimensional structural schematic diagram of the cleaning mechanism of the present invention is shown.

[0020] Figure 5 A three-dimensional structural schematic diagram of the gear, connecting plate and rack of the present invention is shown.

[0021] Figure 6 A three-dimensional structural schematic diagram of the flushing mechanism of the present invention is shown.

[0022] Figure 7 A schematic diagram of the three-dimensional structure of the mounting frame and the activated carbon plate of the present invention is shown.

[0023] Figure 8 A cross-sectional view of the mounting frame of the present invention is shown.

[0024] Fig. 9 A schematic diagram of the three-dimensional structure of the second connecting pipe, the second hard pipe and the second nozzle of the present invention is shown.

[0025] Figure numbers: 1_frame, 2_box, 3_discharge pipe, 4_feed box, 5_installation box, 6_support plate, 7_filter, 8_electric guide rail, 9_guide rod, 10_slide plate, 11_spring, 12_opening, 13_guide rod, 14_scraper, 15_first rotating shaft, 16_first pulley, 17_second rotating shaft, 18_second pulley, 19_flat belt, 20_connecting block, 21_gear, 22_connecting plate, 23_rack, 24_first hard pipe, 25_first nozzle, 26_first connecting pipe, 261_drain pipe, 27_installation frame, 28_suction fan, 29_activated carbon plate, 30_second connecting pipe, 31_second hard pipe, 32_second nozzle, 33_collection frame, 34_discharge pipe, 35_air blowing fan. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1-Figure 6As shown, an environmentally friendly water-based ink production high-efficiency filtering device includes a frame 1, a box 2, a discharge pipe 3, a feed box 4, an installation box 5, a support plate 6, a filter screen 7, an electric guide rail 8, a guide rod 9, a slide plate 10, a spring 11, a cleaning mechanism and a flushing mechanism. The top middle of the frame 1 is connected to the box 2 by bolts, and the bottom middle of the box 2 is connected to the discharge pipe 3. The lower part of the box 2 is conical, which can better gather the ink into the discharge pipe 3 to avoid ink residue in the box 2. The top middle of the box 2 is connected to the feed box 4. The lower part of the feed box 4 is conical, which can better gather the ink into the box body 2 to prevent the ink from remaining in the feed box 4. The left and right sides of the box body 2 are connected with installation boxes 5. The bottom of the installation box 5 and the top of the frame 1 are connected by bolts. The front and rear sides of the box body 2 are connected with support plates 6. The support plates 6 extend into the installation box 5. Two filter screens 7 are placed on the top of the two support plates 6. The two filter screens 7 are connected to each other. The filter screens 7 slide through the left and right sides of the box body 2. The filter screens 7 can move left and right on the top of the two support plates 6, and the filter screens 7 can move The electric guide rail 8 is installed in the installation box 5, and the upper rear part of the box body 2 and the upper rear part of the installation box 5 are installed with electric guide rails 8 by bolts. The front and rear sides of the upper part of the electric guide rail 8 are connected with guide rods 9, and the two guide rods 9 are slidably connected with the slider of the electric guide rail 8. Two slide plates 10 are slidably connected on the two guide rods 9. The slider of the electric guide rail 8 is located between the two slide plates 10. The two guide rods 9 guide the slide plate 10 together, which can improve the stability of the slide plate 10 and prevent the slide plate 10 from tilting. The left and right sides of the slider of the electric guide rail 8 are connected with two elastic Spring 11, the two springs 11 on the left are connected to the skateboard 10 on the left, and the two springs 11 on the right are connected to the skateboard 10 on the right. The spring 11 is sleeved on the guide rod 9 to prevent the spring 11 from bending. Openings 12 are provided on the front and rear sides of the upper part of the installation box 5. The skateboard 10 extends into the installation box 5 from the opening 12 on the front side. The two skateboards 10 are respectively connected to the two filter screens 7. The installation box 5 is provided with a cleaning mechanism for cleaning impurities on the filter screen 7, and the cleaning mechanism is provided with a flushing mechanism for flushing the filter screen 7.

[0028] like Figure 4 and Figure 5 As shown, the cleaning mechanism includes a guide rod 13, a scraper 14 and a moving component. The guide rods 13 are connected to the left and right sides of the installation box 5. The guide rods 13 are located in the opening 12, and the guide rods 13 are located above the filter screen 7, so the filter screen 7 will not collide with the guide rods 13 when moving left and right. The two guide rods 13 on the same installation box 5 are slidably connected with the scraper 14, and the scraper 14 is located in the opening 12 on the rear side. The two guide rods 13 guide the scraper 14 together, which can improve the stability of the scraper 14 and prevent the scraper 14 from tilting. The moving component is used to drive the scraper 14 to move.

[0029] like Figure 4 and Figure 5 As shown, the moving assembly includes a first rotating shaft 15, a first pulley 16, a second rotating shaft 17, a second pulley 18, a flat belt 19, a connecting block 20, a gear 21, a connecting plate 22 and a rack 23. The upper front part of the installation box 5 is rotatably connected to the first rotating shaft 15, and the lower end of the first rotating shaft 15 is connected to the first pulley 16 through a key. The upper rear part of the installation box 5 is rotatably connected to the second rotating shaft 17, and the lower end of the second rotating shaft 17 is connected to the second pulley 18 through a key. A flat belt 19 is wound around the second pulley 18 and the first pulley 16, and the flat belt 19 passes through the opening 12. The flat belt 19 is connected to a connecting block 20. The bottom of the connecting block 20 is connected to the top of the scraper 14, and the middle part of the second rotating shaft 17 is connected to the gear 21 through a key. The rear side of the slider of the electric guide rail 8 is connected to the connecting plate 22 by bolts, and the bottom of the connecting plate 22 is connected to the rack 23 by bolts.

[0030] like Figure 3 and Figure 6 As shown, the flushing mechanism includes a first hard tube 24, a first nozzle 25, a first connecting tube 26 and a drain pipe 261. The upper part of the scraper 14 is connected to the first hard tube 24, the bottom of the first hard tube 24 is evenly connected to the first nozzle 25, the water outlet of the first nozzle 25 faces the filter screen 7, the middle part of the rear side of the first hard tube 24 is connected to the first connecting tube 26, and the lower part of the front side of the installation box 5 is connected to the drain pipe 261.

[0031] Initially, the left filter screen 7 is located in the left installation box 5, and the right filter screen 7 is located in the box body 2; the staff pours ink into the feed box 4, and the ink falls into the box body 2 along the feed box 4, and then the ink falls on the right filter screen 7, and the right filter screen 7 can filter impurities in the ink, and the filtered ink is discharged through the discharge pipe 3. After too many impurities are filtered out of the right filter screen 7, the ink is stopped from being poured into the feed box 4, and then the electric guide rail 8 is controlled to operate, and the electric guide rail 8 drives the slide plate 10 to move to the right through the spring 11, and the slide plate 10 drives the filter screen 7 to move to the right, and the right filter screen 7 is moved to the right installation box 5, and the left filter screen 7 is moved to the box body 2, and the filter screen 7 is quickly adjusted. Replace it to ensure work efficiency. At this time, continue to pour ink into the feed box 4 and continue to filter impurities in the ink. When the filter screen 7 on the right moves to the right and contacts the right side of the installation box 5 on the right, the filter screen 7 on the right stops moving to the right, and the electric guide rail 8 continues to run. The spring 11 on the right is compressed, and the spring 11 on the left is stretched. The electric guide rail 8 drives the connecting plate 22 to move to the right, and the connecting plate 22 drives the rack 23 to move to the right. When the rack 23 moves to the right and engages with the gear 21 on the right, the rack 23 drives the gear 21 on the right to rotate, and the gear 21 on the right drives the second rotating shaft 17 on the right to rotate, and the second rotating shaft 17 on the right drives the second pulley 18 on the right to rotate, and the second pulley 18 on the right passes through the right The flat belt 19 drives the right connecting block 20 to move forward, and the right connecting block 20 drives the right scraper 14 to move forward. The right scraper 14 is moved out from the opening 12 on the rear side of the right installation box 5, and the right scraper 14 contacts the top of the right filter screen 7. The right scraper 14 can scrape off the impurities on the right filter screen 7 for the next use. The impurities are discharged through the opening 12 on the front side of the right installation box 5. At the same time, the first connecting pipe 26 on the right is connected to the water source, and the water flows into the first hard pipe 24 on the right through the first connecting pipe 26 on the right. Finally, the water is sprayed out through the first nozzle 25 on the right, and sprayed on the filter screen 7 on the right, so as to rinse the filter screen 7 on the right, and the filter screen 7 on the right can be cleaned more dryly. After too much impurities are filtered out of the filter screen 7 on the left, the filter screen 7 can be directly replaced, which has higher continuity and can improve work efficiency. The dirty water will fall into the installation box 5 on the right, and then be discharged through the drainage pipe 261 on the right. When the scraper 14 on the right moves to the opening 12 on the front side of the installation box 5 on the right, the water source of the first connecting pipe 26 on the right is cut off, and the first nozzle 25 on the right stops spraying water. Then the electric guide rail 8 is controlled to drive the connecting plate 22 to move to the left, and the connecting plate 22 drives the rack 23 to move to the left, and the rack 23 drives the gear 21 on the right to rotate in the opposite direction, and the gear 21 on the right drives the second rotating shaft 17 on the right to rotate in the opposite direction, and the second rotating shaft 17 on the right drives the second pulley 18 on the right to rotate in the opposite direction.The second pulley 18 on the right side drives the connecting block 20 on the right side to move backwards through the flat belt 19 on the right side, and the connecting block 20 on the right side drives the scraper 14 on the right side to move backwards, and the scraper 14 on the right side moves out of the opening 12 on the front side of the right installation box 5. At this time, the spring 11 gradually returns to its original state. When the scraper 14 on the right side moves into the opening 12 on the rear side of the right installation box 5, the spring 11 completely returns to its original state, and the staff closes the electric guide rail 8.

[0032] like Figure 7 and Figure 8 As shown, it also includes a mounting frame 27, an air intake fan 28 and an activated carbon plate 29. The upper rear side of the box body 2 is connected to the mounting frame 27, the air intake fan 28 is installed on the front side of the mounting frame 27 by bolts, and the activated carbon plate 29 is connected to the rear side of the mounting frame 27 by bolts.

[0033] Ink will volatilize harmful gases, which can easily affect human health and the surrounding environment; when filtering impurities in the ink, the suction fan 28 can suck the air in the box 2 into the installation frame 27, and the activated carbon plate 29 can purify the harmful gases in the air to prevent the harmful gases from affecting human health and the surrounding environment.

[0034] like Fig. 9 As shown, it also includes a second connecting pipe 30, a second hard pipe 31 and a second nozzle 32. The second connecting pipe 30 is connected to the lower part of the installation box 5, and the rear end of the second connecting pipe 30 extends out from the rear side of the installation box 5. Five second hard pipes 31 are connected to the left and right sides of the second connecting pipe 30. The second nozzles 32 are evenly spaced and connected to the top of the second hard pipes 31. The second nozzles 32 are located below the filter screen 7, and the water outlet of the second nozzle 32 faces the filter screen 7.

[0035] When the scraper 14 moves to the opening 12 on the front side of the installation box 5, the water source of the first connecting pipe 26 is cut off, and the first nozzle 25 stops spraying water. At this time, the second connecting pipe 30 is connected to an external water source, and water flows into the second hard pipe 31 through the second connecting pipe 30, and then the water is sprayed out through the second nozzle 32. The water is sprayed from bottom to top onto the filter screen 7, which can flush out impurities stuck on the filter screen 7. When the scraper 14 moves backward, it can scrape off the impurities remaining on the filter screen 7, so that the filter screen 7 can be cleaned more cleanly, and the impurities are discharged through the opening 12 on the rear side of the installation box 5.

[0036] like Figure 1As shown, it also includes a collecting frame 33 and a discharge pipe 34. The front and rear sides of the middle part of the box body 2 are connected with the collecting frame 33 by bolts, and the middle of the bottom of the collecting frame 33 is connected with the discharge pipe 34. The impurities discharged from the opening 12 on the front side of the installation box 5 will fall into the collecting frame 33 on the front side, and then be discharged through the discharge pipe 34 on the front side. The impurities discharged from the opening 12 on the rear side of the installation box 5 will fall into the collecting frame 33 on the rear side, and then be discharged through the discharge pipe 34 on the rear side, which is convenient for centralized processing of the cleaned impurities. The left and right sides of the bottom of the collecting frame 33 are inclined, which can better gather the impurities into the discharge pipe 34.

[0037] like Figure 1 As shown, an air blowing fan 35 is also included. The air blowing fan 35 is installed on both sides of the upper front side of the installation box 5 by bolts. After the impurities on the filter screen 7 are cleaned, the air blowing fan 35 blows air into the installation box 5 to dry the residual moisture on the filter screen 7 to prevent water from dripping into the box body 2 and affecting the purity of the ink.

[0038] The above description is only an example of the present invention and is not intended to limit the present invention. Any equivalent substitutions made within the principles of the present invention should be included in the protection scope of the present invention. The contents not elaborated in detail in the present invention belong to the existing technologies known to those skilled in the art.

Claims

1. An environmentally friendly high-efficiency filtering device for producing water-based ink, comprising a frame (1), a box (2), a discharge pipe (3) and a feed box (4), wherein the top of the frame (1) is connected to the box (2), the bottom of the box (2) is connected to the discharge pipe (3), and the top of the box (2) is connected to the feed box (4), wherein: The machine also comprises an installation box (5), a support plate (6), a filter screen (7), an electric guide rail (8), a guide rod (9), a slide plate (10), a spring (11), a cleaning mechanism and a flushing mechanism. The installation box (5) is connected to both sides of the box body (2). The installation box (5) is connected to the frame (1). Two support plates (6) are connected to the box body (2). The support plates (6) extend into the installation box (5). Two filter screens (7) are placed on the top of the two support plates (6). The two filter screens (7) are connected to each other. The filter screen (7) slides through the box body (2). The box body (2) and the installation box (5) are jointly installed with an electric guide rail (8). The electric guide rail (8) is connected with a guide rod (9). The guide rod (9) and the electric guide rail (8) are connected to each other. The slider of the guide rail (8) is slidably connected, and two slide plates (10) are slidably connected on the guide rod (9). A spring (11) is connected between the slider of the electric guide rail (8) and the slide plate (10). The installation box (5) has openings (12) on both the front and rear sides. The slide plate (10) extends into the installation box (5) from the front opening (12) and is connected to the filter screen (7). The electric guide rail (8) drives the slide plate (10) to move through the spring (11), and the slide plate (10) drives the filter screen (7) to move, so that the filter screen (7) is replaced. The installation box (5) is provided with a cleaning mechanism for cleaning impurities on the filter screen (7), and the cleaning mechanism is provided with a flushing mechanism for flushing the filter screen (7).

2. The high-efficiency filtration device for producing environmentally friendly water-based ink according to claim 1 is characterized in that: The cleaning mechanism comprises a guide rod (13), a scraper (14) and a moving assembly. Two guide rods (13) are connected in the installation box (5). The guide rods (13) are located in the opening (12). The two guide rods (13) on the same installation box (5) are slidably connected with the scraper (14). The moving assembly is used to drive the scraper (14) to move.

3. The high-efficiency filtration device for producing environmentally friendly water-based ink according to claim 2 is characterized in that: The moving assembly comprises a first rotating shaft (15), a first belt pulley (16), a second rotating shaft (17), a second belt pulley (18), a flat belt (19), a connecting block (20), a gear (21), a connecting plate (22) and a rack (23); the first rotating shaft (15) and the second rotating shaft (17) are rotatably connected to each other on the installation box (5); the first rotating shaft (15) is connected to the first belt pulley (16); the second rotating shaft (17) is connected to the second belt pulley (18); a flat belt (19) is wound around the second belt pulley (18) and the first belt pulley (16); the flat belt (19) passes through the opening (12); the flat belt (19) is connected to the connecting block (20); The connecting block (20) is connected to the scraper (14), the second rotating shaft (17) is connected to a gear (21), the slider of the electric guide rail (8) is connected to a connecting plate (22), the connecting plate (22) is connected to a rack (23), the rack (23) meshes with the gear (21) during movement, and drives the gear (21) to rotate, the gear (21) drives the second rotating shaft (17) and the second pulley (18) to rotate, the second pulley (18) drives the flat belt (19) to rotate, the flat belt (19) drives the scraper (14) to move through the connecting block (20), and the scraper (14) cleans the impurities on the filter screen (7).

4. The high-efficiency filtration device for producing environmentally friendly water-based ink according to claim 3 is characterized by: The flushing mechanism comprises a first hard pipe (24), a first nozzle (25), a first connecting pipe (26) and a drainage pipe (261); the scraper (14) is connected to the first hard pipe (24); the bottom of the first hard pipe (24) is connected to the first nozzle (25); the first hard pipe (24) is connected to the first connecting pipe (26); and the installation box (5) is connected to the drainage pipe (261).

5. The high-efficiency filtration device for producing environmentally friendly water-based ink according to claim 4 is characterized in that: It also comprises a mounting frame (27), an air suction fan (28) and an activated carbon plate (29); the housing (2) is connected to the mounting frame (27), and the mounting frame (27) is connected to the air suction fan (28) and the activated carbon plate (29).

6. The high-efficiency filtration device for producing environmentally friendly water-based ink according to claim 5 is characterized by: It also includes a second connecting pipe (30), a second hard pipe (31) and a second nozzle (32); the second connecting pipe (30) is connected inside the installation box (5); the second connecting pipe (30) is connected to the second hard pipe (31); and the top of the second hard pipe (31) is connected to the second nozzle (32).

7. The high-efficiency filtration device for producing environmentally friendly water-based ink according to claim 6 is characterized by: It also includes a collecting frame (33) and a discharge pipe (34). The collecting frame (33) is connected to the box body (2). The scraper (14) cleans impurities on the filter screen (7). The impurities fall into the collecting frame (33) through the opening (12). The bottom of the collecting frame (33) is connected to the discharge pipe (34).

8. The high-efficiency filtration device for producing environmentally friendly water-based ink according to claim 7 is characterized by: It also includes an air blowing fan (35), and the air blowing fan (35) is installed on each installation box (5).

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