Filtering equipment for producing road marking paint

Abstract

The utility model discloses filtering equipment for producing road marking paint. The device comprises a filtering barrel, a feeding box, a conveying pipe, a discharging pipe and a filtering piece, a power assembly is arranged at the upper end of the filtering barrel, a movable rod is connected to the lower end of the power assembly, one end of the movable rod penetrates through the top end of the filtering barrel and then is arranged in the filtering barrel, an extrusion plate is installed at the end, arranged in the filtering barrel, of the movable rod, and the outer edge of the extrusion plate makes contact with the inner wall of the filtering barrel; a feeding port is formed in the upper end of the feeding box, the feeding box is arranged on the upper side of the front end of the filtering barrel, one end of the conveying pipe is communicated with the bottom end of the feeding box, the other end of the conveying pipe is communicated with the side wall of the filtering barrel, one end of the discharging pipe is communicated with the side wall of the bottom end of the filtering barrel, one end of the filtering piece is connected with the other end of the discharging pipe, and a filtering net is installed in the middle of the filtering piece. And supporting frames are mounted at the bottom ends of the filtering barrel and the feeding box. The filter has the beneficial effects of good filtering effect and high filtering efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field related to paint production equipment, in particular to a filtering device for producing road marking paint. Background Art

[0002] Hot-melt road marking paint uses the thermoplasticity of synthetic resin to make hot-melt paint quick-drying, and uses the hot melt of synthetic resin to make the marking line firmly bonded to the road surface. Hot-melt reflective road marking paint is generally composed of thermoplastic resin, pigment filler, reflective material and other additives. Hot-melt paint is powdery at room temperature, and there is no solvent volatile component in the composition. It is heated during construction to melt it, and then it is applied on the ground with special equipment and solidified into a film by physical condensation. For hot-melt road coatings, its fluidity is a very important technical indicator in the construction process. The paint is prone to agglomeration during the production process, and filtering equipment is needed to filter the agglomerates to ensure that the paint has good fluidity when used and is flat when applied on the ground. Common filtering equipment basically uses fixed filter mesh for filtration, and lacks pressure equipment to speed up the filtration speed, so that the paint condenses into agglomerates, affecting the filtration effect.

[0003] Chinese patent authorization announcement number: CN214232982U, authorization announcement date November 24, 2010, discloses a filtering device for road marking paint production, including a mixing box, a discharge port is provided at the bottom of the mixing box, a shielding mechanism is provided inside the discharge port, a filter frame is provided at the bottom of the shielding mechanism, the filter frame is clamped in the slot provided at the bottom of the discharge port, both ends of the filter frame are fixed with abutment plates, the two abutment plates are respectively clamped at the two sides of the bottom of the discharge port, a fixing plate is provided at the top of the abutment plate, the fixing plate is fixedly provided on the side of the mixing box, a screw is fixedly provided at the bottom of the fixing plate, the screw is movably interlaced with the opening provided at the top of the abutment plate, and a nut is threadedly connected at the bottom of the screw. The shortcomings of this utility model are that the paint is filtered through the filter screen provided at the bottom of the shielding mechanism, and there is a lack of pressure equipment. The paint is filtered only by the pressure of the paint itself, which makes the efficiency of the paint passing through the screen low. Moreover, since there is no corresponding shielding component on the top of the mixing box, the paint is exposed to the air, which is more likely to condense into blocks during use and is easily contaminated by dust impurities, affecting the filtering effect. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of low filtering efficiency and poor filtering effect in the prior art and provides a filtering device for producing road marking paint with good filtering effect and high filtering efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The filter press has one end in contact with the filter element, and the other end is connected with the filter press, and the filter press has one end in contact with the filter element.

[0007] First, the paint enters the filter barrel through the feed port at the top of the feed box, and the paint is transported from the feed box to the filter barrel through the feed pipe. Then the power component drives the movable rod to move up and down, and the extrusion plate installed at the lower end of the movable rod contacts the inner wall of the filter barrel. Driven by the movable rod, the extrusion plate continues to squeeze the paint in the filter barrel, so that the paint in the filter barrel passes through the discharge pipe installed on the side wall of the bottom end of the filter barrel more quickly under the driving force of pressure, and is finally filtered out from the filter screen in the middle of the filter element. Since the filtration process is faster under the action of pressure, the probability of the paint condensing into blocks will be correspondingly lower, thereby achieving the purpose of good filtration effect and high filtration efficiency.

[0008] Preferably, a flow control valve is installed in the middle of the feed pipe, and the flow control valve is connected to the feed pipe. The flow control valve controls the amount of feed to avoid paint overflow, and at the same time allows the paint to be stored in the feed box for easy feeding and filtering next time.

[0009] Preferably, the power assembly includes a limiter, a rack, a gear and a rotating motor 1. The lower end of the limiter is connected to the top of the filter barrel. The limiter is provided with a sliding channel. The left and right inner walls of the sliding channel are provided with guide grooves. The left and right sides of the rack are provided with guide blocks. The rack is slidably connected to the limiter through the cooperation of the guide groove and the guide block. The rotating motor 1 is installed on the top surface of the filter barrel. The rotating motor 1 is provided with a rotating rod 1. The gear is installed at one end of the rotating rod 1. The gear is meshed with the rack. The lower end of the rack is connected to the upper end of the movable rod. The rotating motor 1 drives the rotating rod 1 to rotate, and the rotating rod 1 drives the gear to rotate. Due to the meshing of the gear and the rack, the rack moves up and down driven by the rotation of the gear. The movement direction of the rack is limited by the cooperation of the guide groove and the guide block, thereby achieving the purpose of the power assembly driving the movable rod and the extrusion plate to move up and down.

[0010] Preferably, a connecting piece 1 is provided at the upper end of the filter element near the discharge pipe, and a connecting piece 2 is provided at the upper end of the discharge pipe near the filter element, and a rotating shaft 1 is provided on the connecting piece 1, and the rotating shaft 1 passes through the connecting piece 1 and the connecting piece 2, and the filter element is rotatably connected to the discharge pipe through the cooperation of the connecting piece 1, the rotating shaft 1 and the connecting piece 2. The upper end of the filter element away from the discharge pipe is provided with a clamping rod 1, and the upper end of the discharge pipe is provided with a flange 1, and a clamping groove 1 is provided in the flange 1, and the filter element is detachably connected to the discharge pipe through the interference fit of the clamping rod 1 and the clamping groove 1. Connecting pieces 3 are provided on the left and right sides of the side of the discharge pipe near the discharge pipe, and connecting pieces 4 corresponding to the connecting piece 3 are provided on the left and right sides of the side of the discharge pipe near the filter element, and screw holes are provided in the middle of the connecting piece 3 and the middle of the connecting piece 4, and bolts are installed in the screw holes, and the connecting piece 3 is detachably connected to the connecting piece 4 through the cooperation of the screw holes and the bolts. When there are many impurities on the filter screen, the bolts on the connection pieces three and four can be loosened, and the filter element can be rotated along the rotating shaft to open. At the same time, in order to facilitate cleaning of the barrel body, the clamping rod one on the filter element can also be installed in the clamping groove one to fix the filter element, thereby achieving the purpose of detachable cleaning of the filter element and facilitating cleaning of the barrel body.

[0011] Preferably, a baffle is provided below the discharge pipe, a connecting piece 5 is provided at the lower end of the discharge pipe close to the filter element, a connecting piece 6 is provided at the upper end of the baffle, a rotating shaft 2 is provided on the connecting piece 5, the rotating shaft 2 passes through the connecting piece 5 and the connecting piece 6, the baffle is rotatably connected to the discharge pipe through the cooperation of the connecting piece 5, the rotating shaft 2 and the connecting piece 6, a clamping rod 2 is provided at the upper end of the baffle away from the discharge pipe, a flange 2 is provided at the lower end of the discharge pipe, a clamping groove 2 is provided in the flange 2, the baffle is detachably connected to the discharge pipe through the interference fit of the clamping rod 2 and the clamping groove 2, a connecting piece 7 corresponding to the connecting piece 4 is provided on the left and right sides of the baffle, a screw hole is provided in the middle of the connecting piece 7, and the connecting piece 7 is detachably connected to the connecting piece 4 through the cooperation of bolts and screw holes. When the filter element is removed, in order to avoid contamination in the barrel due to the opening of the discharge pipe, the baffle can be rotated on the discharge pipe along the rotating shaft 2, and the connecting member 7 and the connecting member 4 can be connected by the cooperation of the bolts and the screw holes, so as to achieve the purpose of avoiding contamination in the filter barrel.

[0012] Preferably, a sealing ring is provided on one end of the filter element close to the discharge pipe, a sealing ring is provided on one end of the baffle plate close to the discharge pipe, a sealing groove is provided on one end of the discharge pipe close to the filter element, and the filter element and the baffle plate are both sealed and connected to the discharge pipe through the cooperation of the sealing ring and the sealing groove. The filter element and the baffle plate are both sealed and connected to the discharge pipe through the cooperation of the sealing ring and the sealing groove, so that the connection between the filter element and the discharge pipe is not easy to leak, and the connection between the baffle plate and the discharge pipe is not easy to leak, so that the purpose of the equipment not leaking during use is achieved.

[0013] Preferably, a guide platform is installed on the inner side of the bottom end of the filter barrel, one end of the guide platform is tangent to the lower edge of the discharge pipe, and the height of the guide platform close to the discharge pipe is lower than the height of the guide platform away from the discharge pipe. The design of one end of the guide platform being higher than the other end facilitates guiding the paint to the discharge pipe for discharge.

[0014] Preferably, a rotating motor 2 is provided on the outer side of the lower end of the filter barrel, and a rotating rod 2 is provided on the rotating motor 2. One end of the rotating rod 2 is connected to the rotating motor 2, and the other end of the rotating rod 2 passes through the bottom end of the filter barrel and the guide platform and is placed above the guide platform. A plurality of fan blades are installed on the other end of the rotating rod 2, and the fan blades are evenly distributed at the outer edge of the other end of the rotating rod 2. After the filter element is removed, the baffle is installed on the discharge pipe, and then water is poured into the filter barrel. The rotating motor is started to drive the rotating rod 2 to rotate, and the rotating rod 2 rotates to drive the fan blades to rotate, so that the water rotates in the filter barrel to rinse the inner wall of the filter barrel. After the rinsing is completed, the baffle is removed to discharge the sewage, thereby achieving the purpose of facilitating the rinsing of the filter barrel.

[0015] Preferably, a top cover is provided above the feed box, a limit groove is provided at the lower end of the top cover, an annular flange is provided at the outer edge of the upper end of the feed box, the annular flange is detachably installed in the limit groove, a rubber ring is installed in the limit groove, and the top cover is sealed and connected to the feed box through the cooperation of the annular flange and the rubber ring in the limit groove. After the top cover is installed, the cooperation of the annular flange and the rubber ring makes the feed box sealed, effectively preventing dust and other impurities from contaminating the paint.

[0016] Preferably, an observation window is provided on the outer wall of the filter barrel, and light-transmitting glass is installed in the observation window. The observation window is convenient for determining the liquid height in the filter barrel and the coating filtering situation.

[0017] The beneficial effects of the utility model are: good filtering effect and high filtering efficiency; avoiding paint overflow and facilitating the next feeding and filtering; the power component drives the movable rod and the extrusion plate to move up and down; the filter element can be disassembled and cleaned and the barrel body is easy to clean; avoiding contamination in the filter barrel; the equipment is not easy to leak during use; it is easy to guide the paint to the discharge pipe for discharge; the filter barrel is easy to rinse; and it effectively prevents dust and other impurities from contaminating the paint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a longitudinal section schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the power assembly;

[0021] Figure 4It is a schematic diagram of the structure of the discharge pipe, filter element and baffle.

[0022] In the figure: 1. filter barrel, 2. feed box, 3. feed pipe, 4. discharge pipe, 5. filter element, 6. power assembly, 7. movable rod, 8. extrusion plate, 9. feed port, 10. filter screen, 11. support frame, 12. flow control valve, 13. limiter, 14. rack, 15. gear, 16. rotating motor 1, 17. sliding channel, 18. guide groove, 19. guide block, 20. rotating rod 1, 21. connecting piece 1, 22. connecting piece 2, 23. rotating shaft 1, 24. clamping rod 1, 25. flange 1, 26. clamping groove 1, 27. connecting piece 3, 28. connecting piece 4, 29. screw hole, 30. bolt, 31. baffle, 32. connecting piece 5, 33. Connecting piece six, 34. Rotating shaft two, 35. Clamping rod two, 36. Flanging two, 37. Clamping groove two, 38. Connecting piece seven, 39. Sealing ring, 40. Sealing groove, 41. Guide platform, 42. Rotating motor two, 43. Rotating rod two, 44. Fan blade, 45. Top cover, 46. Limiting groove, 47. Annular flange, 48. Rubber ring, 49. Observation window. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0024] like Figure 1 In the described embodiment, a filtering device for producing road marking paint includes a filter barrel 1, a feed box 2, a delivery pipe 3, a discharge pipe 4 and a filter element 5. A power assembly 6 is provided at the upper end of the filter barrel 1, and a movable rod 7 is connected to the lower end of the power assembly 6. One end of the movable rod 7 passes through the top of the filter barrel 1 and is placed in the filter barrel 1. An extrusion plate 8 is installed on the end of the movable rod 7 placed in the filter barrel 1, and the outer edge of the extrusion plate 8 contacts the inner wall of the filter barrel 1. A feed port 9 is provided at the upper end of the feed box 2, and the feed box 2 is placed on the upper side of the front end of the filter barrel 1. One end of the delivery pipe 3 is connected to the bottom end of the feed box 2, and the other end of the delivery pipe 3 is connected to the side wall of the filter barrel 1. One end of the discharge pipe 4 is connected to the bottom side wall of the filter barrel 1, and one end of the filter element 5 is connected to the other end of the discharge pipe 4. A filter screen 10 is installed in the middle of the filter element 5, and a support frame 11 is installed at the bottom ends of the filter barrel 1 and the feed box 2.

[0025] A flow control valve 12 is installed in the middle of the material delivery pipe 3 , and the flow control valve 12 is connected to the material delivery pipe 3 .

[0026] like Figure 3As shown, the power assembly 6 includes a limit member 13, a rack 14, a gear 15 and a rotating motor 16. The lower end of the limit member 13 is connected to the top end of the filter barrel 1. The limit member 13 is provided with a sliding channel 17. The left and right inner walls of the sliding channel 17 are provided with guide grooves 18. The left and right sides of the rack 14 are provided with guide blocks 19. The rack 14 is slidably connected to the limit member 13 through the cooperation of the guide grooves 18 and the guide blocks 19. The rotating motor 16 is installed on the top surface of the filter barrel 1. The rotating motor 16 is provided with a rotating rod 20. The gear 15 is installed at one end of the rotating rod 20. The gear 15 is meshed with the rack 14. The lower end of the rack 14 is connected to the upper end of the movable rod 7.

[0027] like Figure 4 As shown, a connector 21 is provided at the upper end of the filter 5 close to the discharge pipe 4, a connector 22 is provided at the upper end of the discharge pipe 4 close to the filter 5, a rotating shaft 23 is provided on the connector 21, the rotating shaft 23 penetrates the connector 21 and the connector 22, the filter 5 is rotatably connected to the discharge pipe 4 through the cooperation of the connector 21, the rotating shaft 23 and the connector 22, a clamping rod 24 is provided at the upper end of the filter 5 away from the discharge pipe 4, a flange 25 is provided at the upper end of the discharge pipe 4, a clamping groove 26 is provided in the flange 25, The filter element 5 is detachably connected to the discharge pipe 4 through the interference fit of the clamping rod 1 24 and the clamping groove 1 26. Connecting pieces 3 27 are provided on the left and right sides of the filter element 5 close to the discharge pipe 4. Connecting pieces 4 28 corresponding to the connecting pieces 3 27 are provided on the left and right sides of the discharge pipe 4 close to the filter element 5. Screw holes 29 are provided in the middle of the connecting piece 3 27 and the middle of the connecting piece 4 28. Bolts 30 are installed in the screw holes 29. The connecting piece 3 27 is detachably connected to the connecting piece 4 28 through the fit of the screw holes 29 and the bolts 30.

[0028] A baffle plate 31 is provided below the discharge pipe 4, a connector five 32 is provided at the lower end of the discharge pipe 4 close to the filter element 5, a connector six 33 is provided at the upper end of the baffle plate 31, a rotating shaft two 34 is provided on the connecting member five 32, the rotating shaft two 34 penetrates the connecting member five 32 and the connecting member six 33, the baffle plate 31 is rotatably connected to the discharge pipe 4 through the cooperation of the connecting member five 32, the rotating shaft two 34 and the connecting member six 33, a clamping rod two 35 is provided at the upper end of the baffle plate 31 away from the discharge pipe 4, a flange two 36 is provided at the lower end of the discharge pipe 4, a clamping groove two 37 is provided in the flange two 36, the baffle plate 31 is detachably connected to the discharge pipe 4 through the interference fit of the clamping rod two 35 and the clamping groove two 37, a connecting member seven 38 corresponding to the connecting member four 28 is provided on the left and right sides of the baffle plate 31, a screw hole 29 is provided in the middle of the connecting member seven 38, and the connecting member seven 38 is detachably connected to the connecting member four 28 through the cooperation of the bolt 30 and the screw hole 29.

[0029] A sealing ring 39 is provided on one end of the filter element 5 close to the discharge pipe 4, a sealing ring 39 is provided on one end of the baffle plate 31 close to the discharge pipe 4, and a sealing groove 40 is provided on one end of the discharge pipe 4 close to the filter element 5. The filter element 5 and the baffle plate 31 are both sealed and connected to the discharge pipe 4 through the cooperation of the sealing ring 39 and the sealing groove 40.

[0030] like Figure 2 As shown, a guide platform 41 is installed on the inner side of the bottom end of the filter barrel 1, one end of the guide platform 41 is tangent to the lower edge of the discharge pipe 4, and the height of the guide platform 41 close to the discharge pipe 4 is lower than the height of the guide platform 41 away from the discharge pipe 4.

[0031] A rotating motor 42 is provided on the outer surface of the lower end of the filter barrel 1, and a rotating rod 43 is provided on the rotating motor 42. One end of the rotating rod 43 is connected to the rotating motor 42, and the other end of the rotating rod 43 passes through the bottom end of the filter barrel 1 and the guide platform 41 and is placed above the guide platform 41. A plurality of fan blades 44 are installed on the other end of the rotating rod 43, and the fan blades 44 are evenly distributed at the outer edge of the other end of the rotating rod 43.

[0032] A top cover 45 is provided above the feed box 2, and a limiting groove 46 is provided at the lower end of the top cover 45. An annular flange 47 is provided on the outer edge of the upper end of the feed box 2. The annular flange 47 can be detachably installed in the limiting groove 46, and a rubber ring 48 is installed in the limiting groove 46. The top cover 45 is sealed and connected to the feed box 2 by cooperating with the rubber ring 48 in the limiting groove 46 through the annular flange 47.

[0033] like Figure 1 As shown, an observation window 49 is provided on the outer wall of the filter barrel 1, and light-transmitting glass is installed in the observation window 49.

[0034] When in use, first remove the top cover 45 from the top of the feed box 2, pour the paint into the feed box 2 through the feed port 9, and after the paint is poured, install the top cover 45 on the upper end of the feed box 9, so that the rubber ring 48 in the limit groove 46 is sealed with the annular flange 47 on the feed box 2, and then open the flow control valve 12. The flow control valve 9 is a prior art. The paint is transported from the feed pipe 3 to the filter barrel 1. The paint injection is observed through the observation window 49. After the paint injection is completed, the flow control valve 12 is closed, and the rotating motor 16 at the top of the filter barrel 1 is started. The motor 16 drives the rotating rod 20 to rotate, and the rotating rod 20 drives the gear 15 to rotate. Because the gear 15 and the rack 14 are meshed, the rotation of the gear 15 drives the rack 14 to move up and down, and the rack 14 drives the movable rod 7 to move up and down, and the movable rod 7 drives the extrusion plate 8 to move up and down. Since the outer edge of the extrusion plate 8 contacts the inner wall of the filter barrel 1, when the extrusion plate 8 moves up and down, it will exert pressure on the paint, so that the paint flows into the discharge pipe 4 at the bottom of the filter barrel 1 faster along the guide table 41, and finally flows out through the filter screen 10 in the filter element 5 on the discharge pipe 4.

[0035] When the filter barrel 1 needs to be cleaned, first remove the bolts 30 on the connector 3 27 and the connector 4 28, then rotate the filter element 5 along the rotating shaft 1 23 to the top of the discharge pipe 4, install the clamping rod 1 24 into the clamping groove 1 26 on the flange 1 25, and then rinse the filter screen 10 in the middle of the filter element 5, then take the clamping rod 25 out of the clamping groove 2 37 on the flange 2 36, rotate the baffle 31 to the end of the discharge pipe 4 close to the filter element 5, align the sealing ring 39 with the sealing groove 40 and install the sealing ring 39 into the sealing groove 40, and then connect the connector 7 38 and the connector 4 28 through the cooperation of the bolt 30 and the screw hole. , remove the top cover 45 from the top of the feed box 2, pour the cleaning liquid into the feed box 2 through the feed port 9, then open the flow control valve 12, and the cleaning liquid is transported from the feed pipe 3 to the filter barrel 1, and then start the rotating motor 2 42, the rotating motor 2 42 drives the rotating rod 2 43 to rotate, and the rotating rod 2 43 drives the fan blades to rotate, so that the cleaning liquid rotates in the filter barrel 1 and rinses the barrel wall. After observing through the observation window 49 that the cleaning is completed, the rotating motor 2 42 can be stopped, and the bolts 30 on the connecting piece 7 38 and the connecting piece 4 28 can be removed, and the baffle 31 can be rotated open along the rotating shaft 2 to discharge the cleaning liquid, and the cleaning of the filter barrel 1 is completed.

Claims

1. A filtering device for producing road marking paint, characterized in that: The invention comprises a filter barrel (1), a feed box (2), a feed pipe (3), a discharge pipe (4) and a filter element (5), wherein a power assembly (6) is provided at the upper end of the filter barrel (1), a movable rod (7) is connected to the lower end of the power assembly (6), one end of the movable rod (7) passes through the top end of the filter barrel (1) and is placed in the filter barrel (1), an extrusion plate (8) is installed on one end of the movable rod (7) placed in the filter barrel (1), the outer edge of the extrusion plate (8) contacts the inner wall of the filter barrel (1), and the feed box (2) is provided at the upper end. The material port (9) is provided, the feed box (2) is placed on the upper front end of the filter barrel (1), one end of the feed pipe (3) is connected to the bottom end of the feed box (2), the other end of the feed pipe (3) is connected to the side wall of the filter barrel (1), one end of the discharge pipe (4) is connected to the bottom side wall of the filter barrel (1), one end of the filter element (5) is connected to the other end of the discharge pipe (4), a filter screen (10) is installed in the middle of the filter element (5), and a support frame (11) is installed at the bottom ends of the filter barrel (1) and the feed box (2).

2. A filtering device for producing road marking paint according to claim 1, characterized in that: A flow control valve (12) is installed in the middle of the material delivery pipe (3), and the flow control valve (12) is connected to the material delivery pipe (3).

3. A filtering device for producing road marking paint according to claim 1, characterized in that: The power assembly (6) comprises a limiter (13), a rack (14), a gear (15) and a rotating motor (16); the lower end of the limiter (13) is connected to the top end of the filter barrel (1); a sliding channel (17) is provided on the limiter (13); guide grooves (18) are provided on the inner walls on the left and right sides of the sliding channel (17); guide blocks (19) are provided on the left and right sides of the rack (14); the rack (14) is slidably connected to the limiter (13) through the cooperation of the guide grooves (18) and the guide blocks (19); the rotating motor (16) is mounted on the top end surface of the filter barrel (1); a rotating rod (20) is provided on the rotating motor (16); the gear (15) is mounted at one end of the rotating rod (20); the gear (15) meshes with the rack (14); and the lower end of the rack (14) is connected to the upper end of the movable rod (7).

4. A filtering device for producing road marking paint according to claim 1, characterized in that: A connecting piece (21) is provided at the upper end of the filter element (5) on the side close to the discharge pipe (4), and a connecting piece (22) is provided at the upper end of the discharge pipe (4) on the side close to the filter element (5). A rotating shaft (23) is provided on the connecting piece (21), and the rotating shaft (23) passes through the connecting piece (21) and the connecting piece (22). The filter element (5) is rotatably connected to the discharge pipe (4) through the cooperation of the connecting piece (21), the rotating shaft (23) and the connecting piece (22). A clamping rod (24) is provided at the upper end of the filter element (5) on the side away from the discharge pipe (4), and a flange (25) is provided at the upper end of the discharge pipe (4). A clamping groove (24) is provided in the flange (25). 26), the filter element (5) is detachably connected to the discharge pipe (4) through the interference fit of the clamping rod (24) and the clamping groove (26), the filter element (5) is provided with a connecting piece (27) on both the left and right sides of the side close to the discharge pipe (4), and the discharge pipe (4) is provided with a connecting piece (28) corresponding to the connecting piece (27) on both the left and right sides of the side close to the filter element (5), and the middle of the connecting piece (27) and the middle of the connecting piece (28) are provided with a screw hole (29), and a bolt (30) is installed in the screw hole (29), and the connecting piece (27) is detachably connected to the connecting piece (28) through the fit of the screw hole (29) and the bolt (30).

5. A filtering device for producing road marking paint according to claim 4, characterized in that: A baffle (31) is provided below the discharge pipe (4), a connector five (32) is provided at the lower end of the discharge pipe (4) on the side close to the filter element (5), a connector six (33) is provided at the upper end of the baffle (31), a rotating shaft two (34) is provided on the connector five (32), the rotating shaft two (34) passes through the connector five (32) and the connector six (33), the baffle (31) is rotatably connected to the discharge pipe (4) through the cooperation of the connector five (32), the rotating shaft two (34) and the connector six (33), and a baffle (31) is provided at the upper end of the baffle (31) on the side away from the discharge pipe (4). There is a clamping rod (35), and the lower end of the discharge pipe (4) is provided with a flange (36), and a clamping groove (37) is provided in the flange (36). The baffle (31) is detachably connected to the discharge pipe (4) through the interference fit between the clamping rod (35) and the clamping groove (37). The left and right sides of the baffle (31) are provided with a connecting piece (38) corresponding to the connecting piece (28), and a screw hole (29) is provided in the middle of the connecting piece (38). The connecting piece (38) is detachably connected to the connecting piece (28) through the fit of a bolt (30) and the screw hole (29).

6. A filtering device for producing road marking paint according to claim 5, characterized in that: A sealing ring (39) is provided on one end of the filter element (5) close to the discharge pipe (4), a sealing ring (39) is provided on one end of the baffle plate (31) close to the discharge pipe (4), and a sealing groove (40) is provided on one end of the discharge pipe (4) close to the filter element (5). The filter element (5) and the baffle plate (31) are both sealed and connected to the discharge pipe (4) through the cooperation of the sealing ring (39) and the sealing groove (40).

7. A filtering device for producing road marking paint according to claim 1, characterized in that: A flow guide platform (41) is installed on the inner side surface of the bottom end of the filter barrel (1), one end of the flow guide platform (41) is tangent to the lower edge of the discharge pipe (4), and the height of the end of the flow guide platform (41) close to the discharge pipe (4) is lower than the height of the end of the flow guide platform (41) away from the discharge pipe (4).

8. A filtering device for producing road marking paint according to claim 7, characterized in that: A second rotating motor (42) is provided on the outer surface of the lower end of the filter barrel (1), and a second rotating rod (43) is provided on the second rotating motor (42). One end of the second rotating rod (43) is connected to the second rotating motor (42), and the other end of the second rotating rod (43) passes through the bottom end of the filter barrel (1) and the guide platform (41) and is then placed above the guide platform (41). A plurality of fan blades (44) are installed on the other end of the second rotating rod (43), and the fan blades (44) are evenly distributed at the outer edge of the other end of the second rotating rod (43).

9. A filtering device for producing road marking paint according to claim 1, characterized in that: A top cover (45) is provided above the feed box (2), a limiting groove (46) is provided at the lower end of the top cover (45), an annular flange (47) is provided at the outer edge of the upper end of the feed box (2), the annular flange (47) is detachably mounted in the limiting groove (46), a rubber ring (48) is installed in the limiting groove (46), and the top cover (45) is sealed and connected to the feed box (2) by the cooperation of the annular flange (47) and the rubber ring (48) in the limiting groove (46).

10. A filtering device for producing road marking paint according to claim 1, characterized in that: An observation window (49) is provided on the outer wall of the filter barrel (1), and light-transmitting glass is installed in the observation window (49).

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