Powder coating screening device

Abstract

The utility model discloses a powder coating screening device, relates to screening technical field, a multistage screening mechanism comprises four rail strips fixedly connected to the two sides of the inner wall of a machine shell, a limit strip and a motor, the limit strip and the motor are fixedly connected to the top of a fixing table, and the inner walls of the four rail strips are all provided with rail grooves in a penetrating mode. A sliding connection strip is slidably connected to the inner wall of the limiting strip, two limiting frames are fixedly connected to the outer surface of the sliding connection strip, a connecting strip is fixedly connected to the front face of the sliding connection strip, a first connecting shaft is fixedly connected to the inner wall of the connecting strip, and a connecting arm is rotatably connected to the outer surface of the first connecting shaft. By arranging the multi-stage screening mechanism and the complex motion trail, layering and through screening of the powder coating are more effectively promoted, the screening efficiency is improved, the powder coating is more sufficiently dispersed and screened, the screening precision is improved, the screen is more effectively impacted, the blocking phenomenon is reduced, and the screen is kept smooth.

Description

Technical Field

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

[0002] Powder coating is a new type of solvent-free solid powder coating. Compared to liquid coatings, powder coatings are solvent-free, pollution-free, and have high mechanical strength due to their fewer raw materials and lack of solvent volatilization. They are widely used in various industries such as home appliances. In the production process of powder coatings, the ground material must be further screened to obtain a product that meets the requirements. However, traditional screening devices mostly use a single motion trajectory screening method, which easily leads to low screening efficiency and difficulty in handling powder coatings with a wide particle size distribution and varying sizes, resulting in insufficient screening accuracy and limited effectiveness. Utility Model Content

[0003] The purpose of the utility model is to provide a powder coating screening device to solve the technical problems mentioned in the above background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A powder coating screening device comprises a base and a casing. The top of the base is fixedly connected with a fixing platform, and a multi-stage screening mechanism is arranged between the casing and the fixing platform.

[0006] The outer surface of the sliding bar is fixedly connected to the two limit frames of the sliding bar, and the front surface of the sliding bar is fixedly connected to the connecting bar. The inner wall of the connecting bar is fixedly connected to the first connecting shaft, the outer surface of the first connecting shaft is rotatably connected to the connecting arm, the inner wall of the connecting arm is rotatably connected to the second connecting shaft, the outer surface of the second connecting shaft is fixedly connected to the two connecting blocks, the upper screen is fixedly connected to the lower screen by four fixing bars, the upper and lower screens are fixedly connected to the moving rod on both sides, the outer surface of the motor output shaft is fixedly connected to the eccentric wheel disc, the outer surface of the eccentric wheel disc is rotatably connected to the connecting ring, and the outer surface of the connecting ring is fixedly connected to the U-shaped bar.

[0007] As a further solution of the present invention: the top of the casing is connected to a feed bin, the bottom of the casing is fixedly connected to a base plate, and an angle adjustment mechanism is provided between the base plate and the base.

[0008] As a further solution of the present invention: the angle adjustment mechanism includes four fixed blocks fixedly connected to the bottom of the base plate and two limit seats and a fixed seat on the top of the base, a fixed shaft is fixedly connected between the inner walls of the two front fixed blocks and the inner walls of the two rear fixed blocks, the inner walls of the two limit seats are rotatably connected to the rotating shaft, the outer surface of the rotating shaft is fixedly connected to the lower connecting block, the top of the lower connecting block is fixedly connected to the hydraulic telescopic rod, and the output end of the hydraulic telescopic rod is fixedly connected to the connecting seat.

[0009] As a further solution of the present invention: the bottom of the base is fixedly connected to a support column, and the bottom of the support column is fixedly connected to a support seat.

[0010] As a further solution of the present invention: the U-shaped bar and the sliding bar are slidably connected, and the four motion rods are all adapted to the adjacent track grooves.

[0011] As a further solution of the present invention: the front fixed shaft and the fixed seat are rotationally connected, and the rear fixed shaft and the connecting seat are rotationally connected.

[0012] As a further solution of the present invention: four support columns are provided and distributed in a rectangular array at the bottom edge of the base.

[0013] Beneficial effects

[0014] The utility model provides a powder coating screening device. Compared with the prior art, it has the following advantages:

[0015] (1) This application sets up a multi-stage screening mechanism and a complex motion trajectory to more effectively promote the stratification and screening of powder coatings, improve screening efficiency, allow the powder coatings to be more fully dispersed and screened, improve screening accuracy, and more effectively impact the screen, reduce blockage, and keep the screen unobstructed.

[0016] (2) The present application sets an angle adjustment mechanism, which can adjust the corresponding screening angle according to the particle size, density and other characteristics of the coating, thereby improving the screening efficiency. Adjusting the inclination angle can also control the discharge speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the main figure of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the multi-stage screening mechanism of the utility model;

[0019] Figure 3 This is a partial structural exploded view of the multi-stage screening mechanism of the utility model;

[0020] Figure 4This is a three-dimensional diagram of the partial structure of the multi-stage screening mechanism of the utility model;

[0021] Figure 5 It is a three-dimensional diagram of the local structure of the utility model;

[0022] Figure 6 It is a three-dimensional diagram of the angle adjustment mechanism of the utility model.

[0023] In the figure: 1. base; 2. casing; 3. fixed platform; 4. multi-stage screening mechanism; 41. track bar; 42. limit bar; 43. motor; 44. track groove; 45. sliding bar; 46. limit frame; 47. connecting bar; 48. first connecting shaft; 49. connecting arm; 410. second connecting shaft; 411. connecting block; 412. upper screen; 413. fixed bar; 414. lower screen; 415. moving rod; 416. eccentric wheel; 417. connecting ring; 418. U-shaped bar; 5. feeding bin; 6. bottom plate; 7. angle adjustment mechanism; 71. fixed block; 72. limit seat; 73. fixed seat; 74. fixed shaft; 75. rotating shaft; 76. lower connecting block; 77. hydraulic telescopic rod; 78. connecting seat; 8. support column; 9. support seat. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-6As shown, the utility model is a powder coating screening device, including a base 1 and a casing 2, the top of the base 1 is fixedly connected to a fixed platform 3, and a multi-stage screening mechanism 4 is arranged between the casing 2 and the fixed platform 3; the multi-stage screening mechanism 4 includes four track bars 41 fixedly connected to both sides of the inner wall of the casing 2 and a limit bar 42 and a motor 43 fixedly connected to the top of the fixed platform 3, the motor 43 is electrically connected to an external power supply and is controlled by an external program. The inner walls of the four track bars 41 are all penetrated by track grooves 44, the inner wall of the limit bar 42 is slidably connected with a sliding bar 45, the outer surface of the sliding bar 45 is fixedly connected to two limit frames 46, the front of the sliding bar 45 is fixedly connected to a connecting bar 47, the inner wall of the connecting bar 47 is fixedly connected to a first connecting shaft 48, the outer surface of the first connecting shaft 48 is rotatably connected to a connecting arm 49, the inner wall of the connecting arm 49 is rotatably connected to a second connecting shaft 410, the outer surface of the second connecting shaft 410 is fixedly connected to two connecting blocks 411, an upper screen 412 is fixedly connected between the fronts of the two connecting blocks 411, the upper screen 412 is fixedly connected to a lower screen 414 through four fixing bars 413, the mesh diameter of the upper screen 412 is larger than the mesh diameter of the lower screen 414, and more accurate screening can be performed. Motion rods 415 are fixedly connected to both sides of the upper and lower screens 412, 414. An eccentric disc 416 is fixedly connected to the outer surface of the output shaft of the motor 43. A connecting ring 417 is rotatably connected to the outer surface of the eccentric disc 416. A U-shaped bar 418 is fixedly connected to the outer surface of the connecting ring 417. By providing a multi-stage screening mechanism 4 and a complex motion trajectory, the stratification and screening of the powder coating are more effectively promoted, improving screening efficiency, allowing the powder coating to be more fully dispersed and screened, and improving screening accuracy. It also more effectively impacts the screen, reducing clogging and keeping the screen unobstructed.

[0026] The top of the housing 2 is connected to a feed bin 5, and the bottom of the housing 2 is fixedly connected to a base plate 6. An angle adjustment mechanism 7 is provided between the base plate 6 and the base 1. By providing the angle adjustment mechanism 7, the corresponding screening angle can be adjusted according to the particle size, density and other characteristics of the coating, thereby improving the screening efficiency. Adjusting the tilt angle can also control the discharge speed.

[0027] The angle adjustment mechanism 7 includes four fixed blocks 71 fixedly connected to the bottom of the base plate 6, and two limit seats 72 and a fixed seat 73 on the top of the base 1. A fixed shaft 74 is fixedly connected between the inner walls of the two front fixed blocks 71 and the inner walls of the two rear fixed blocks 71. A rotating shaft 75 is rotatably connected to the inner walls of the two limit seats 72. The outer surface of the rotating shaft 75 is fixedly connected to a lower connecting block 76. The top of the lower connecting block 76 is fixedly connected to a hydraulic telescopic rod 77. The hydraulic telescopic rod 77 is electrically connected to an external power source and is controlled by an external program. The output end of the hydraulic telescopic rod 77 is fixedly connected to a connecting seat 78.

[0028] The bottom of the base 1 is fixedly connected to a support column 8 , and the bottom of the support column 8 is fixedly connected to a support seat 9 .

[0029] The U-shaped bar 418 and the sliding bar 45 are slidably connected, and the four motion rods 415 are adapted to the adjacent track grooves 44 .

[0030] The front fixed shaft 74 and the fixed seat 73 are rotationally connected, and the rear fixed shaft 74 and the connecting seat 78 are rotationally connected.

[0031] There are four support columns 8 , which are distributed in a rectangular array at the bottom edge of the base 1 . The arrangement of multiple support columns 8 ensures the stability of the device.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] The working principle of the present invention is as follows: First, the hydraulic telescopic rod 77 is activated, causing it to move the output end connection seat 78 upward. As the connection seat 78 moves, the hydraulic telescopic rod 77 rotates between the inner walls of the two limit seats 72 via the rotating shaft 75 on the inner wall of the bottom lower connecting block 76. At the same time, the connection seat 78 drives the two rear fixed blocks 71 and the base plate 6 via the fixed shaft 74, so that the base plate 6 drives the front fixed shaft 74 to rotate within the inner wall of the fixed seat 73 via the two front fixed blocks 71, thereby adjusting the angle of the base plate 6 and all structures thereon. Then, the motor 43 is activated, causing it to rotate the eccentric wheel 416 on the output shaft. As the eccentric wheel 416 rotates, it squeezes the connection ring 417, causing the U-shaped bar 418 on the connection ring 417 to reciprocate left and right through the position of the sliding bar 45 between the two limit frames 46, causing the sliding bar 45 to slide back and forth within the inner wall of the limit bar 42. At this time, the connecting bar 47 drives the second connecting shaft 410 through the connecting arm 49 on the outer surface of the first connecting shaft 48, and the second connecting shaft 410 drives the upper screen 412 through the two connecting blocks 411, causing it to reciprocate back and forth along the inner walls of the track grooves 44 on both sides through the moving rods 415 on both sides. As the upper screen 412 moves, the lower screen 414 is also driven by the four fixed bars 413 to slide back and forth along the inner walls of the adjacent track bars 41 through the two moving rods 415 on both sides. At the same time, it can also vibrate up and down along the uneven inner wall shape while reciprocating. Finally, the container is placed in front of the equipment, and the material is poured into the feed bin 5 for screening and discharge.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder coating screening device, comprising a base (1) and a housing (2), characterized in that: A fixed platform (3) is fixedly connected to the top of the base (1), and a multi-stage screening mechanism (4) is provided between the housing (2) and the fixed platform (3); The multi-stage screening mechanism (4) comprises four track bars (41) fixedly connected to both sides of the inner wall of the casing (2) and a limit bar (42) and a motor (43) fixedly connected to the top of the fixed platform (3). The inner walls of the four track bars (41) are all penetrated by a track groove (44). The inner wall of the limit bar (42) is slidably connected to a sliding bar (45). The outer surface of the sliding bar (45) is fixedly connected to two limit frames (46). The front surface of the sliding bar (45) is fixedly connected to a connecting bar (47). The inner wall of the connecting bar (47) is fixedly connected to a first connecting shaft (48). The outer surface of the first connecting shaft (48) is rotatably connected to a connecting arm (49). The inner surface of the connecting arm (49) is fixedly connected to the first connecting shaft (48). The wall is rotatably connected to a second connecting shaft (410), the outer surface of the second connecting shaft (410) is fixedly connected to two connecting blocks (411), an upper screen (412) is fixedly connected between the front faces of the two connecting blocks (411), the upper screen (412) is fixedly connected to a lower screen (414) through four fixing bars (413), both sides of the upper screen (412) and the lower screen (414) are fixedly connected to a motion rod (415), the outer surface of the output shaft of the motor (43) is fixedly connected to an eccentric wheel disc (416), the outer surface of the eccentric wheel disc (416) is rotatably connected to a connecting ring (417), and the outer surface of the connecting ring (417) is fixedly connected to a U-shaped bar (418).

2. A powder coating screening device according to claim 1, characterized in that: The top of the casing (2) is connected to a feed bin (5), the bottom of the casing (2) is fixedly connected to a bottom plate (6), and an angle adjustment mechanism (7) is provided between the bottom plate (6) and the base (1).

3. A powder coating screening device according to claim 2, characterized in that: The angle adjustment mechanism (7) comprises four fixed blocks (71) fixedly connected to the bottom of the base plate (6) and two limiting seats (72) and a fixed seat (73) on the top of the base (1); a fixed shaft (74) is fixedly connected between the inner walls of the two front fixing blocks (71) and the inner walls of the two rear fixing blocks (71); the inner walls of the two limiting seats (72) are rotatably connected to a rotating shaft (75); the outer surface of the rotating shaft (75) is fixedly connected to a lower connecting block (76); the top of the lower connecting block (76) is fixedly connected to a hydraulic telescopic rod (77); and the output end of the hydraulic telescopic rod (77) is fixedly connected to a connecting seat (78).

4. A powder coating screening device according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected to a support column (8), and the bottom of the support column (8) is fixedly connected to a support seat (9).

5. A powder coating screening device according to claim 1, characterized in that: The U-shaped bar (418) and the sliding bar (45) are slidably connected, and the four motion rods (415) are all adapted to the adjacent track grooves (44).

6. A powder coating screening device according to claim 3, characterized in that: The front fixed shaft (74) and the fixed seat (73) are rotatably connected, and the rear fixed shaft (74) and the connecting seat (78) are rotatably connected.

7. A powder coating screening device according to claim 4, characterized in that: Four support columns (8) are provided and distributed in a rectangular array at the bottom edge of the base (1).

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