Multistage screening device for powder coating

Abstract

The utility model relates to the technical field of screening equipment, discloses a powder coating multi-stage screening device, and solves the problems that dust with different particle sizes on a screening device is mixed together, and residual mixtures on the surface of a filter screen are not further treated, so that powder screening is insufficient. A turning assembly comprises a rotating shaft, the outer side of the rotating shaft is sleeved with a brush ring, a separation plate is installed in a screening bin, a guide plate is arranged at the upper end of the separation plate, a fan and a starting motor are installed between the separation plate and the inner wall of the screening bin, and the driving end of the motor enables the turning assembly to move. The brush ring pushes a powder mixture on the surface of the first-stage filter screen to move to one end of the partition plate, the fan sucks dust on the surface of the first-stage filter screen, and the dust falls down from the top end of the screening bin again in the direction of the partition plate and the guide plate and is filtered by the first-stage filter screen again, so that the first-stage filter screen more sufficiently screens the dust.

Description

TECHNICAL FIELD

[0001] The utility model relates to a screening equipment technical field, concretely to a powder coating multistage screening device. BACKGROUND

[0002] The powder coating is the solid powder state synthetic resin coating that solid resin and pigment, filler and auxiliary agent etc. are composed, and the powder coating multistage screening device is the equipment for carrying out fine screening to the powder coating, utilizes the screen of different aperture to carry out the classification screening to the powder coating, through multistage screening, can remove the impurity, the agglomerate and the uneven part of granule in the powder coating, improves the purity and the fineness of the powder coating, thereby promotes the quality and the performance of coating.

[0003] The existing patent with the announcement number CN217747943U provides a screening equipment with multistage screening function for powder coating production, the scraper scrapes the powder in the inside of the screening bucket on the screen, so that the powder falls on the storage bin through the screen, and the plug plate is retracted in the inside of the screening bucket, so that the impurities screened on the screen fall out through the discharge port.

[0004] The related technology in the above has the problem that the dust of different particle sizes on the screening device is mixed together, and the mixture remaining on the filter screen surface is not further treated, so that the powder screening is not sufficient. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a powder coating multistage screening device, and the device is used to work, so as to solve the problem that the dust of different particle sizes on the screening device is mixed together, and the mixture remaining on the filter screen surface is not further treated, so that the powder screening is not sufficient.

[0006] To achieve the above object, the utility model provides the following technical scheme: a powder coating multistage screening device, including screening bin, the one side of screening bin is installed with motor, and the screening bin is installed with filter assembly, and the filter assembly includes primary filter screen, and the downside of primary filter screen is provided with secondary filter screen, and the primary filter screen and secondary filter screen are installed in the inside of screening bin, and the upside of primary filter screen is provided with turnover assembly, and the both ends of turnover assembly are installed with moving assembly, and moving assembly is installed in the inside of screening bin, and the driving end of motor is fixedly connected with moving assembly, and the downside of secondary filter screen is provided with vibration assembly, and vibration assembly is installed in the inside of screening bin, and the turnover assembly includes rotating shaft, and the both ends of rotating shaft are fixedly connected with moving assembly, and the outside of rotating shaft is equipped with brush ring, and the inside of screening bin is installed with isolation plate, and isolation plate is located at the end of screening bin away from motor, and the upper end of isolation plate is provided with guide plate, and guide plate is installed in the inside of screening bin, and the isolation plate and the inner wall of screening bin are installed with fan.

[0007] The starting motor drives the output end of the moving assembly to move the turning assembly, the brush ring pushes the powder mixture on the surface of the first filter screen to move along the first filter screen to the end of the screening bin close to the isolation plate, the fan sucks the dust on the surface of the first filter screen along the direction of the isolation plate and the guide plate, and the dust falls from the top of the screening bin again, passes through the first filter screen again, and is more fully screened by the first filter screen.

[0008] Preferably, the first filter screen and the second filter screen are arranged at an angle of 30 degrees with the horizontal plane.

[0009] The impurities and larger particles separated by the surface of the filtering assembly can be gathered at the end of the filtering assembly with a lower height.

[0010] Preferably, the moving assembly comprises a sliding block, two sides of the inside of the screening bin are provided with notches, the moving assembly comprises two groups of sliding blocks, the two groups of sliding blocks are in sliding connection with the notches, a rotating shaft is rotatably arranged on the two sliding blocks, gears are installed on the two ends of the rotating shaft, a rack plate is in meshing connection with the lower side of the gears and is installed on the screening bin, a threaded rod is in threaded connection with the lower side of one of the sliding blocks, one end of the threaded rod is rotatably connected with the screening bin, the other end of the threaded rod is fixedly connected with the driving end of the motor, and a guide rod is in sliding connection with the lower side of the other sliding block and is fixedly connected with the screening bin.

[0011] The driving end of the motor drives the threaded rod to rotate, thereby driving the sliding blocks to move along the guide rod, the rotating shaft drives the gears to move on the rack plate, the rotation of the gears drives the rotating shaft to rotate, thereby enabling the rotating shaft to move on the upper side of the first filter screen while rotating itself, and enabling the brush ring to evenly turn the powder on the surface of the first filter screen.

[0012] Preferably, the vibrating assembly comprises a rotating disc, the rotating disc is rotatably installed on the inner wall of the screening bin, a motor is installed on one side of the rotating disc, two connecting blocks are installed on the outer side of the rotating disc, a rotating wheel is rotatably installed between the two connecting blocks, a rotating block is arranged on the upper side of the rotating wheel, a rotating column is rotatably arranged on the rotating block, one end of the rotating column is installed on the inner wall of the screening bin, a spring is sleeved on the outer side of the rotating column, one end of the spring is fixedly connected with the rotating column, the other end of the spring is fixedly connected with the rotating block, a knocking block is installed on the end of the rotating block away from the rotating column, and the knocking block is located on the lower side of the second filter screen.

[0013] The motor drives the rotating disc to rotate, the rotating disc drives the rotating wheel to rotate, the rotating wheel presses one end of the rotating block in the rotating process, the rotating block rotates along the rotating column, then the spring resets the rotating block, the knocking block knocks the second filter screen upward due to inertia, the surface of the second filter screen vibrates, and the smaller particles pass through the second filter screen faster.

[0014] Preferably, the primary filter screen surface has a hole diameter larger than that of the secondary filter screen surface.

[0015] The larger particles of dust and impurities are retained on the primary filter screen surface, and the dust is further screened by the secondary filter screen.

[0016] Preferably, one end of the primary filter screen and the secondary filter screen is provided with a positioning plate one, the other end of the primary filter screen and the secondary filter screen is provided with a positioning plate two, the positioning plate one and the positioning plate two have the same thickness, the thickness of the primary filter screen and the secondary filter screen is smaller than that of the positioning plate one, and two notches one are formed on one side of the screening bin and match the positioning plate one.

[0017] The primary filter screen and the secondary filter screen can be pulled out along the notches one through the positioning plate one, and the surfaces thereof are cleaned.

[0018] Preferably, the screening bin is internally provided with two support plates, the two support plates are respectively located at one end of the primary filter screen and the secondary filter screen, and the support plates are provided with notches two matching the positioning plate two.

[0019] One end of the primary filter screen and the secondary filter screen is supported by the support plates.

[0020] Preferably, the screening bin is provided with two movable doors, and the two movable doors are respectively located on the upper sides of the two support plates.

[0021] After screening, the dust and impurities on the surfaces of the primary filter screen and the secondary filter screen can be taken out through the movable doors.

[0022] Preferably, the screening bin is provided with a feeding pipe at the upper end, the feeding pipe is hingedly provided with a feeding cover at the upper end, the screening bin is provided with a discharging bin at the lower end, and the discharging bin is provided with support columns around.

[0023] The powder enters the screening bin from the feeding pipe, the feeding cover prevents dust from escaping from the feeding pipe during the screening operation, and the screened powder is discharged from the discharging bin.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] The utility model provides a kind of powder coating multistage screening device, turning subassembly includes rotating shaft, the both ends of rotating shaft and moving assembly fixed connection, rotating shaft's outside is equipped with brush ring, screening bin is equipped with baffle inside, baffle is located on the one end of screening bin far from motor, the upper end of baffle is provided with guide plate, guide plate is installed in screening bin inside, baffle and screening bin inner wall are equipped with fan, start motor, the output end of moving assembly is driven turning subassembly to move by the driving end of motor, brush ring promotes the movement of powder mixture on the surface of primary filter screen, reaches the one end on screening bin close to baffle along primary filter screen, fan sucks the dust on the surface of primary filter screen, dust is along the direction of baffle and guide plate again, falls down from the top of screening bin again, is filtered by primary filter screen again, so that the screening of primary filter screen to dust is more sufficient. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the overall schematic view of the utility model;

[0027] Figure 2 It is the front view of the utility model;

[0028] Figure 3 It is the moving assembly structure schematic view of the utility model;

[0029] Figure 4 It is the vibration assembly structure schematic view of the utility model;

[0030] Figure 5 It is the screening bin structure schematic view of the utility model;

[0031] In the drawing: 1, screening bin;11, notch;12, gap one;13, support plate;131, gap two;14, movable door;15, feed pipe;151, feed cover;16, discharge bin;17, support column;2, motor;3, filter assembly;31, primary filter screen;311, positioning plate one;312, positioning plate two;32, secondary filter screen;4, turning subassembly;41, rotating shaft;42, brush ring;5, moving assembly;51, sliding block;52, gear;53, rack plate;54, threaded rod;55, guide rod;6, vibration assembly;61, rotating disc;611, motor;62, connecting block;63, rotating wheel;64, rotating block;65, rotating column;66, spring;67, knocking block;7, baffle;8, guide plate;9, fan. DETAILED DESCRIPTION

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0034] Combination Figures 1-3 , Figure 5 A multi-stage sieving device for powder coatings includes a sieving chamber 1, a motor 2 mounted on one side of the sieving chamber 1, and a filter assembly 3 mounted on the sieving chamber 1. The filter assembly 3 includes a primary filter screen 31, a secondary filter screen 32 disposed below the primary filter screen 31, and both the primary and secondary filter screens 31 and 32 are installed inside the sieving chamber 1. A tilting assembly 4 is disposed above the primary filter screen 31, and moving assemblies 5 are mounted at both ends of the tilting assembly 4. The moving assemblies 5 are installed inside the sieving chamber 1, and the drive end of the motor 2 is fixedly connected to the moving assemblies 5. A vibration component 6 is installed on the lower side of the secondary filter screen 32, and the vibration component 6 is installed inside the screening chamber 1. A positioning plate 311 is installed at one end of the primary filter screen 31 and the secondary filter screen 32, and a positioning plate 312 is installed at the other end of the primary filter screen 31 and the secondary filter screen 32. The positioning plates 311 and 312 have the same thickness, while the thickness of the primary filter screen 31 and the secondary filter screen 32 is less than the thickness of the positioning plate 311. Two notches 12 are provided on one side of the screening chamber 1, and the notches 12 match the positioning plates 311 for screening. Inside the screening chamber 1, two support plates 13 are installed, located at one end of the primary filter screen 31 and the secondary filter screen 32, respectively. A notch 131 is formed on each support plate 13, and a positioning plate 312 matches the notch 131. Two movable doors 14 are installed on the screening chamber 1, located above the two support plates 13. A feed pipe 15 is installed at the upper end of the screening chamber 1, with a feed cover 151 hinged to its upper end. A discharge chamber 16 is installed at the lower end of the screening chamber 1, and supports are installed around the discharge chamber 16. Column 17 allows the primary filter screen 31 and the secondary filter screen 32 to be pulled out along the notch 12 via the positioning plate 311 for surface cleaning. One end of the primary filter screen 31 and the secondary filter screen 32 is supported by the support plate 13. After screening, the dust and impurities on the surface of the primary filter screen 31 and the secondary filter screen 32 can be removed through the movable door 14. The powder enters the screening chamber 1 from the feed pipe 15. During the screening operation, the feed cover 151 prevents dust from escaping from the feed pipe 15. The suitable powder screened out is discharged from the output end of the discharge chamber 16.

[0035] In combination Figures 2-3 , the turning assembly 4 includes a rotating shaft 41, both ends of which are fixedly connected with the moving assembly 5, the outer side of the rotating shaft 41 is sleeved with a brush ring 42, the inside of the screening bin 1 is provided with a partition plate 7, which is located at the end of the screening bin 1 away from the motor 2, the upper end of the partition plate 7 is provided with a guide plate 8, which is installed in the inside of the screening bin 1, a fan 9 is installed between the partition plate 7 and the inner wall of the screening bin 1, the motor 2 is started, the driving end of the motor 2 drives the output end of the moving assembly 5 to move, the brush ring 42 pushes the powder mixture on the surface of the first filter screen 31 to move along the first filter screen 31 to the end of the screening bin 1 close to the partition plate 7, the fan 9 sucks the dust on the surface of the first filter screen 31 in the direction of the partition plate 7 and the guide plate 8, and then falls from the top end of the screening bin 1 again, and then passes through the first filter screen 31 again for filtering, so that the screening of the first filter screen 31 on the dust is more sufficient, the angle between the normal visual section of the first filter screen 31 and the horizontal plane is thirty degrees, the hole diameter on the surface of the first filter screen 31 is larger than that of the second filter screen 32, the impurities and larger particles filtered out from the surface of the filtering assembly 3 can be gathered at the end of the filtering assembly 3 with lower height, and the larger dust and impurities stay on the surface of the first filter screen 31, and then the dust is further screened by the second filter screen 32.

[0036] In combination Figures 2-3 , Figure 5 , the moving assembly 5 includes a sliding block 51, two sides of the inside of the screening bin 1 are provided with notches 11, the sliding block 51 is provided with two groups, both groups of the sliding block 51 are slidingly connected with the notches 11, the rotating shaft 41 penetrates through both sliding blocks 51 and rotates, gears 52 are installed on both ends of the rotating shaft 41, a gear rack plate 53 is engagedly arranged on the lower side of the gear 52 and is installed on the screening bin 1, a threaded rod 54 is screwedly installed on the lower side of one of the sliding blocks 51, one end of the threaded rod 54 is rotatably connected with the screening bin 1, the other end of the threaded rod 54 is fixedly connected with the driving end of the motor 2, a guide rod 55 is slidingly installed on the lower side of the other sliding block 51, both ends of the guide rod 55 are fixedly connected with the screening bin 1, the driving end of the motor 2 drives the threaded rod 54 to rotate, thereby driving the sliding block 51 to move along the guide rod 55, the rotating shaft 41 drives the gear 52 to move on the gear rack plate 53, the gear 52 drives the rotating shaft 41 to rotate, thereby making the rotating shaft 41 move on the upper side of the first filter screen 31 while rotating itself, so that the brush ring 42 uniformly turns over the powder on the surface of the first filter screen 31.

[0037] In combination Figure 2 , Figure 4The vibration assembly 6 comprises a rotating disc 61 rotatably installed on the inner wall of the screening bin 1, a motor 611 is installed on one side of the rotating disc 61, two connecting blocks 62 are installed on the outer side of the rotating disc 61, a rotating wheel 63 is rotatably installed between the two connecting blocks 62, a rotating block 64 is arranged on the upper side of the rotating wheel 63, a rotating column 65 is rotatably arranged on the rotating block 64, one end of the rotating column 65 is installed on the inner wall of the screening bin 1, a spring 66 is sleeved on the outer side of the rotating column 65, one end of the spring 66 is fixedly connected with the rotating column 65, the other end of the spring 66 is fixedly connected with the rotating block 64, a knocking block 67 is installed on the end of the rotating block 64 away from the rotating column 65, the knocking block 67 is located on the lower side of the secondary filter screen 32, the motor 611 drives the rotating disc 61 to rotate, the rotating disc 61 drives the rotating wheel 63 to rotate, the rotating wheel 63 extrudes one end of the rotating block 64 in the rotating process, so that the rotating block 64 rotates along the rotating column 65, then the spring 66 resets the rotating block 64, the knocking block 67 knocks the secondary filter screen 32 upward due to inertia, so that the secondary filter screen 32 is vibrated, and the smaller particles pass through the secondary filter screen 32 faster.

[0038] Working principle: start the motor 2, the driving end of the motor 2 drives the output end of the moving assembly 5 to drive the overturning assembly 4 to move, the brush ring 42 pushes the powder mixture on the surface of the primary filter screen 31 to move along the primary filter screen 31 to one end of the screening bin 1 close to the isolation plate 7, the fan 9 sucks the dust on the surface of the primary filter screen 31 in the direction of the isolation plate 7 and the guide plate 8, and then falls from the top end of the screening bin 1 again, and passes through the primary filter screen 31 again, so that the screening of the primary filter screen 31 on the dust is more sufficient.

[0039] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A powder coating multi-stage screening device, comprising a screening bin (1), a motor (2) is installed on one side of the screening bin (1), a filtering assembly (3) is installed on the screening bin (1), the filtering assembly (3) comprises a first-stage filtering screen (31), a second-stage filtering screen (32) is arranged on the lower side of the first-stage filtering screen (31), the first-stage filtering screen (31) and the second-stage filtering screen (32) are both installed inside the screening bin (1), a turnover assembly (4) is arranged on the upper side of the first-stage filtering screen (31), moving assemblies (5) are installed at both ends of the turnover assembly (4), the moving assemblies (5) are installed on the inner side of the screening bin (1), the driving end of the motor (2) is fixedly connected with the moving assemblies (5), a vibrating assembly (6) is arranged on the lower side of the second-stage filtering screen (32), and the vibrating assembly (6) is installed on the inner side of the screening bin (1), characterized in that: The turnover assembly (4) comprises a rotating shaft (41), both ends of the rotating shaft (41) are fixedly connected with the moving assembly (5), the outer side of the rotating shaft (41) is sleeved with a brush ring (42), the inside of the screening bin (1) is provided with a partition plate (7), the partition plate (7) is located at one end of the screening bin (1) away from the motor (2), the upper end of the partition plate (7) is provided with a guide plate (8), the guide plate (8) is installed in the inside of the screening bin (1), and the fan (9) is installed between the partition plate (7) and the inner wall of the screening bin (1).

2. A multi-stage powder coating sieving apparatus as claimed in claim 1, wherein: The angle between the front view section of the first filter screen (31) and the horizontal plane is 30 degrees.

3. A multi-stage powder coating sieving device as claimed in claim 1, characterized in that: The moving assembly (5) comprises a sliding block (51), both sides of the inside of the screening bin (1) are provided with notches (11), the sliding block (51) is provided with two groups, both groups of the sliding block (51) are slidably connected with the notches (11), the rotating shaft (41) penetrates through both sliding blocks (51), the both ends of the rotating shaft (41) are provided with gears (52), the lower side of the gear (52) is provided with a rack plate (53) in meshing mode, the rack plate (53) is installed on the screening bin (1), the lower side of one of the sliding blocks (51) is screwedly provided with a threaded rod (54), one end of the threaded rod (54) is rotatably connected with the screening bin (1), the other end of the threaded rod (54) is fixedly connected with the driving end of the motor (2), the lower side of the other sliding block (51) is slidably provided with a guide rod (55), both ends of the guide rod (55) are fixedly connected with the screening bin (1).

4. A multi-stage powder coating sieving apparatus as claimed in claim 1, wherein: The vibrating assembly (6) comprises a rotating disc (61), the rotating disc (61) is rotatably installed on the inner wall of the screening bin (1), one side of the rotating disc (61) is provided with a motor (611), the outer side of the rotating disc (61) is provided with two connecting blocks (62), the two connecting blocks (62) are rotatably installed with a rotating wheel (63) therebetween, the upper side of the rotating wheel (63) is provided with a rotating block (64), the rotating block (64) is rotatably penetrated with a rotating column (65), one end of the rotating column (65) is installed on the inner wall of the screening bin (1), the outer side of the rotating column (65) is sleeved with a spring (66), one end of the spring (66) is fixedly connected with the rotating column (65), the other end of the spring (66) is fixedly connected with the rotating block (64), one end of the rotating block (64) away from the rotating column (65) is provided with a knocking block (67), and the knocking block (67) is located on the lower side of the second filter screen (32).

5. A multi-stage powder coating sieving apparatus as claimed in claim 1, wherein: The hole diameter of the surface of the first filter screen (31) is greater than the hole diameter of the surface of the second filter screen (32).

6. A multi-stage powder coating sieving apparatus as claimed in claim 1, wherein: One end of the first filter screen (31) and the second filter screen (32) is provided with a positioning plate one (311), the other end of the first filter screen (31) and the second filter screen (32) is provided with a positioning plate two (312), the thicknesses of the positioning plate one (311) and the positioning plate two (312) are the same, the thicknesses of the first filter screen (31) and the second filter screen (32) are less than the thickness of the positioning plate one (311), and two notches one (12) are formed in one side of the screening bin (1), and the notches one (12) are matched with the positioning plate one (311).

7. A multi-stage powder coating sieving apparatus as claimed in claim 1, wherein: The inside of the screening bin (1) is internally provided with two support plates (13), which are respectively located at one end of the first filter screen (31) and the second filter screen (32), and the support plate (13) is provided with a notch two (131), and the positioning plate two (312) is matched with the notch two (131).

8. A multi-stage powder coating sieving apparatus as claimed in claim 7, wherein: The screening bin (1) is provided with two movable doors (14), which are respectively located on the upper side of the two support plates (13).

9. A multi-stage powder coating sieving apparatus as claimed in claim 1, wherein: The upper end of the screening bin (1) is provided with a feeding pipe (15), and the upper end of the feeding pipe (15) is hingedly provided with a feeding cover (151); the lower end of the screening bin (1) is provided with a discharging bin (16), and the periphery of the discharging bin (16) is provided with a supporting column (17).

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