Powder coating screening equipment with multi-stage screening function

Abstract

The powder coating screening equipment with the multi-stage screening function comprises a screening box, a powder inlet is formed in the screening box, a first screening frame and a second screening frame are installed in the screening box through a sliding guide assembly, a bottom collecting frame is placed on the inner wall of the bottom side of the screening box, and the first screening frame and the second screening frame are arranged on the bottom collecting frame. According to the powder coating screening equipment with the multi-stage screening function, a first screening frame and a second screening frame are arranged in the screening box, through the arrangement of the multiple screening frames, the sizes of meshes of the screening frames are gradually reduced, and therefore the multi-stage screening effect can be achieved; and under the action of the back-and-forth screening assembly, the T-shaped rod is driven to move back and forth, so that the first screening frame and the second screening frame are driven to move back and forth for screening, and powder in the screening frames is evenly spread and screened through back-and-forth movement.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating screening, in particular to a powder coating screening device with a multi-stage screening function. Background Art

[0002] Powder coating is a solid powdered synthetic resin coating composed of solid resin, pigment, filler and additives. Unlike ordinary solvent-based coatings and water-based coatings, its dispersion medium is not solvent and water, but air. It has the characteristics of no solvent pollution and low energy consumption. Powder coatings are divided into two categories: thermoplastic and thermosetting.

[0003] In the process of screening powder coatings, the powder coatings are placed on a screening plate and screened by moving back and forth. However, screening can only be performed once each time, and it is difficult to screen powder coatings with particles of multiple sizes. At the same time, during the screening process, some granular powders will accumulate together and block the screening holes, thereby causing blockage. Therefore, a powder coating screening device with a multi-stage screening function is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a powder coating screening device with a multi-stage screening function, which is used to solve the above problems.

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

[0006] A powder coating screening device with multi-stage screening function comprises a screening box, a powder inlet is installed on the screening box, a first screening frame and a second screening frame are installed in the screening box through a sliding guide assembly, a bottom collecting frame is placed on the bottom inner wall of the screening box, a fixed rod is provided on one side of the screening box, two rotating disks are installed on one side of the fixed rod through a driving assembly, one side of the two rotating disks are respectively connected to the first screening frame and the second screening frame through a back and forth screening assembly, a moving vibration assembly is installed in the screening box, and the moving vibration assembly is in contact with the first screening frame and the second screening frame.

[0007] Preferably, the reciprocating screening assembly includes a connecting rod rotatably mounted on one side of the first screening frame and the second screening frame, one end of each of the two connecting rods is rotatably mounted with a T-shaped rod, two movable limit holes are provided on one side of the screening box, and one end of the two T-shaped rods respectively movably passes through the two movable limit holes.

[0008] Preferably, a driving column is fixedly mounted on one side of the rotating disk, a driving hole is opened on one side of the T-shaped rod, and one end of the driving column movably passes through the driving hole.

[0009] Preferably, the driving assembly includes a driving motor fixedly mounted on one side of a fixed rod, the output end of the driving motor is connected to a driving shaft, a driven shaft is rotatably mounted on one side of the fixed rod, two rotating disks are respectively fixedly mounted on one end of the driving shaft and the driven shaft, a rotating wheel is fixedly sleeved on the driving shaft and the driven shaft, and the same rotating belt is movably sleeved on the two rotating wheels.

[0010] Preferably, the sliding guide assembly includes side fixing blocks fixedly mounted on both sides of the first screening frame and the second screening frame, adjustment holes are provided on one side of the two groups of side fixing blocks, and two groups of guide columns are fixedly mounted on the inner wall of the screening box, and the two groups of guide columns are movable through the two groups of adjustment holes respectively.

[0011] Preferably, the mobile vibration assembly includes two bottom fixing blocks fixedly mounted on the inner wall of the screening box, the top sides of the two bottom fixing blocks are fixedly mounted with a plurality of upward semicircular protrusions, the bottom sides of the first screening frame and the second screening frame are fixedly mounted with mounting fixing blocks, the bottom sides of the mounting fixing blocks are fixedly mounted with a plurality of downward semicircular protrusions, and the plurality of upward semicircular protrusions are respectively matched with the plurality of downward semicircular protrusions.

[0012] Preferably, two guide plates are fixedly mounted on the inner wall of the screening box, and the two guide plates are located between the first screening frame and the second screening frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the powder coating screening device with multi-stage screening function has a first screening frame and a second screening frame in the screening box. Through the arrangement of multiple screening frames, the mesh size of the screening frame is gradually reduced, so that the multi-stage screening effect can be achieved. During the screening process, the driving component is started to drive the two rotating disks to rotate, and under the action of the back-and-forth screening component, the T-bar is driven to move back and forth, thereby driving the first screening frame and the second screening frame to move back and forth for screening, and the powder in the screening frame is evenly spread and screened through the back-and-forth movement;

[0014] The mobile vibration component is set up, and the installation fixed block is driven to move during the back and forth movement of the screening frame. Under the extrusion contact between the downward semicircular protrusion and the upward semicircular protrusion, the two screening frames will vibrate up and down. Through the moving vibration, the larger particles of powder piled together can be vibrated to change their positions, thereby avoiding the occurrence of blockage problems and making screening faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the vertical section of the utility model;

[0017] Figure 3It is a schematic diagram of the structure of the side section of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of a partial section of the utility model.

[0019] In the figure: 1. screening box; 2. powder inlet; 3. first screening frame; 4. second screening frame; 5. bottom collecting frame; 6. guide plate; 7. side fixing block; 8. adjustment hole; 9. guide column; 10. fixing rod; 11. driving motor; 12. driving shaft; 13. driven shaft; 14. rotating disk; 15. T-bar; 16. driving hole; 17. driving column; 18. rotating wheel; 19. rotating belt; 20. movable limit hole; 21. connecting rod; 22. bottom fixing block; 23. upward semicircular protrusion; 24. installation fixing block; 25. downward semicircular protrusion. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: Refer to Figure 1-4 A powder coating screening device with a multi-stage screening function comprises a screening box 1, a powder inlet 2 is installed on the screening box 1, a first screening frame 3 and a second screening frame 4 are installed in the screening box 1 through a sliding guide assembly, a bottom collecting frame 5 is placed on the inner wall of the bottom side of the screening box 1, and the powder coating to be screened is poured from the powder inlet 2 and will fall into the screening box 1. The screening box 1 is provided with the first screening frame 3 and the second screening frame 4. Through the setting of multiple screening frames, the mesh size of the screening frame is gradually reduced, so that the effect of multi-stage screening can be achieved. In the screening process, the powder coating with the smallest particle diameter will fall into the bottom collecting frame 5 for collection. Two guide plates 6 are fixedly installed on the inner wall of the screening box 1, and the two guide plates 6 are located between the first screening frame 3 and the second screening frame 4. Through the setting of the guide plates 6, the powder falling from the first screening frame 3 will be guided into the second screening frame 4 to avoid direct falling and affecting the screening effect. A fixed rod 10 is provided on one side of the screening box 1, and two rotating disks 14 are installed on one side of the fixed rod 10 through a driving assembly. One side of the two rotating disks 14 is connected to the first screening frame 3 and the second screening frame 4 respectively through a back and forth screening assembly. A mobile vibration assembly is installed in the screening box 1, and the mobile vibration assembly is in contact with the first screening frame 3 and the second screening frame 4.

[0022] Specifically, the driving assembly includes a driving motor 11 fixedly mounted on one side of a fixed rod 10, the output end of the driving motor 11 is connected to a driving shaft 12, a driven shaft 13 is rotatably mounted on one side of the fixed rod 10, two rotating disks 14 are respectively fixedly mounted on one end of the driving shaft 12 and the driven shaft 13, a rotating wheel 18 is fixedly sleeved on the driving shaft 12 and the driven shaft 13, and the two rotating wheels 18 are movably sleeved with the same rotating belt 19, and the back and forth screening assembly includes a connecting rod 21 rotatably mounted on one side of the first screening frame 3 and the second screening frame 4, one end of the two connecting rods 21 are rotatably mounted with a T-shaped rod 15, one side of the screening box 1 is provided with two movable limit holes 20, one end of the two T-shaped rods 15 respectively movably penetrates the two movable limit holes. A driving column 17 is fixedly installed on one side of the rotating disk 14, and a driving hole 16 is opened on one side of the T-bar 15. One end of the driving column 17 movably passes through the driving hole 16. During the screening process, the driving driving component is started to drive the driving motor 11 on the driving component to run, drive the driving shaft 12 to rotate, and the set rotating wheel 18 and rotating belt 19 can drive the driven shaft 13 to rotate synchronously. The two rotating disks 14 will rotate. Under the action of the back and forth screening component, after the driving column 17 moves, it will drive the T-bar 15 to move back and forth under the action of the driving hole 16. Under the action of the connecting rod 21, the first screening frame 3 and the second screening frame 4 are driven to move back and forth for screening. Through the back and forth movement, the powder in the screening frame is evenly spread and screened.

[0023] Specifically, the sliding guide assembly includes side fixing blocks 7 fixedly installed on both sides of the first screening frame 3 and the second screening frame 4. Adjustment holes 8 are opened on one side of the two groups of side fixing blocks 7. Two groups of guide columns 9 are fixedly installed on the inner wall of the screening box 1. The two groups of guide columns 9 respectively move through the two groups of adjustment holes 8. A sliding guide assembly is set, and the guide columns 9 on the sliding guide assembly move in the adjustment holes 8, which can limit the position of the back and forth movement of the first screening frame 3 and the second screening frame 4.

[0024] Specifically, the mobile vibration component includes two bottom fixing blocks 22 fixedly mounted on the inner wall of the screening box 1, and a plurality of upward semicircular protrusions 23 are fixedly mounted on the top sides of the two bottom fixing blocks 22. The bottom sides of the first screening frame 3 and the second screening frame 4 are fixedly mounted with mounting fixing blocks 24, and a plurality of downward semicircular protrusions 25 are fixedly mounted on the bottom sides of the mounting fixing blocks 24. The plurality of upward semicircular protrusions 23 are respectively matched with the plurality of downward semicircular protrusions 25. The mobile vibration component is set up, and the mounting fixing blocks 24 are driven to move during the back and forth movement of the screening frame. Under the extrusion contact action of the downward semicircular protrusions 25 and the upward semicircular protrusions 23, the two screening frames will be vibrated up and down. Through the mobile vibration, the larger particles of powder piled together can be vibrated to change their positions, thereby avoiding the occurrence of blockage problems. The space of the adjustment hole 8 is large, which can allow a certain space for the movement of the guide column 9 without affecting the vibration of the screening frame.

[0025] During use: When screening the powder coating, pour the powder coating to be screened from the powder inlet 2 and it will fall into the screening box 1. The screening box 1 is provided with a first screening frame 3 and a second screening frame 4. Through the setting of multiple screening frames, the mesh size of the screening frame is gradually reduced, so that the effect of multi-stage screening can be achieved. During the screening process, the powder coating with the smallest particle diameter will fall into the bottom collection frame 5 for collection. During the screening process, start the driving drive assembly, drive the driving motor 11 on the driving drive assembly to run, drive the driving shaft 12 to rotate, and the set rotating wheel 18 and rotating belt 19 can drive the driven shaft 13 to rotate synchronously, and the two rotating disks 14 will rotate. Under the action of the back and forth screening assembly, after the driving column 17 moves, it will drive the T-bar 15 to move back and forth under the action of the driving hole 16. Under the action of the connecting rod 21, the first screening frame 3 and the second screening frame 4 are driven to move back and forth for screening, and the powder in the screening frame is evenly screened by moving back and forth. A sliding guide component is set, and the guide column 9 on the sliding guide component moves in the adjusting hole 8, which can limit the position of the back and forth movement of the first screening frame 3 and the second screening frame 4. The mobile vibration component is set, and the mounting fixed block 24 is driven to move during the back and forth movement of the screening frame. Under the extrusion contact action of the downward semicircular protrusion 25 and the upward semicircular protrusion 23, the two screening frames will vibrate up and down. Through the moving vibration, the larger particle powder piled together can be vibrated to change its position, thereby avoiding the occurrence of clogging problems. The space of the adjusting hole 8 is large, which can allow a certain space for the movement of the guide column 9, will not affect the vibration of the screening frame, and is easy to use.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder coating screening device with multi-stage screening function, comprising a screening box (1), characterized in that: The screening box (1) is provided with a powder inlet (2), a first screening frame (3) and a second screening frame (4) are installed in the screening box (1) via a sliding guide assembly, a bottom collecting frame (5) is placed on the inner wall of the bottom side of the screening box (1), a fixing rod (10) is provided on one side of the screening box (1), two rotating disks (14) are installed on one side of the fixing rod (10) via a driving assembly, one side of the two rotating disks (14) are respectively connected to the first screening frame (3) and the second screening frame (4) via a back-and-forth screening assembly, a moving vibration assembly is installed in the screening box (1), and the moving vibration assembly is in contact with the first screening frame (3) and the second screening frame (4).

2. The powder coating screening device with multi-stage screening function according to claim 1, characterized in that: The reciprocating screening assembly comprises a connecting rod (21) rotatably mounted on one side of the first screening frame (3) and the second screening frame (4), one end of each of the two connecting rods (21) being rotatably mounted with a T-shaped rod (15), one side of the screening box (1) being provided with two movable limiting holes (20), one end of each of the two T-shaped rods (15) being movably passed through the two movable limiting holes (20).

3. The powder coating screening device with multi-stage screening function according to claim 2, characterized in that: A driving column (17) is fixedly mounted on one side of the rotating disk (14), a driving hole (16) is opened on one side of the T-shaped rod (15), and one end of the driving column (17) movably passes through the driving hole (16).

4. The powder coating screening device with multi-stage screening function according to claim 1, characterized in that: The driving assembly comprises a driving motor (11) fixedly mounted on one side of a fixed rod (10); the output end of the driving motor (11) is connected to a driving shaft (12); a driven shaft (13) is rotatably mounted on one side of the fixed rod (10); two rotating disks (14) are respectively fixedly mounted on one end of the driving shaft (12) and the driven shaft (13); rotating wheels (18) are fixedly sleeved on both the driving shaft (12) and the driven shaft (13); and the same rotating belt (19) is movably sleeved on the two rotating wheels (18).

5. The powder coating screening device with multi-stage screening function according to claim 1, characterized in that: The sliding guide assembly comprises side fixing blocks (7) fixedly mounted on both sides of the first screening frame (3) and the second screening frame (4), one side of the two sets of side fixing blocks (7) is provided with adjustment holes (8), and two sets of guide columns (9) are fixedly mounted on the inner wall of the screening box (1), and the two sets of guide columns (9) are respectively movable and penetrate the two sets of adjustment holes (8).

6. The powder coating screening device with multi-stage screening function according to claim 1, characterized in that: The mobile vibration assembly comprises two bottom fixing blocks (22) fixedly mounted on the inner wall of the screening box (1), the top sides of the two bottom fixing blocks (22) are fixedly mounted with a plurality of upward semicircular protrusions (23), the bottom sides of the first screening frame (3) and the second screening frame (4) are fixedly mounted with mounting fixing blocks (24), the bottom sides of the mounting fixing blocks (24) are fixedly mounted with a plurality of downward semicircular protrusions (25), and the plurality of upward semicircular protrusions (23) are respectively matched with the plurality of downward semicircular protrusions (25).

7. The powder coating screening device with multi-stage screening function according to claim 1, characterized in that: Two guide plates (6) are fixedly mounted on the inner wall of the screening box (1), and the two guide plates (6) are located between the first screening frame (3) and the second screening frame (4).

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