A powder screening device

Abstract

This utility model discloses a powder screening device, belonging to the field of screening devices. The device includes: a body, a screen, an anti-clogging component one, and an anti-clogging component two. A support is provided at the bottom of the body. The screen is disposed within the body. The anti-clogging component one is disposed above the screen and cleans the powder clogging the screen mesh; the anti-clogging component one includes a rotating shaft rotatably connected to the inner wall of the body; a spring two is connected to the side wall of the rotating shaft; the other end of the spring two is connected to an elastic ball one. The anti-clogging component two is disposed above the screen and, in conjunction with the anti-clogging component one, further cleans the powder clogging the screen mesh; the anti-clogging component two includes multiple elastic balls two placed on the screen. This utility model, by causing multiple elastic balls one and multiple elastic balls two to continuously impact the screen, creates a large impact force on the screen, thereby shaking out the powder clogging the screen, helping to maintain the unobstructed flow of the screen and reducing clogging during the screening process.

Description

Technical Field

[0001] This utility model relates to the field of screening devices, and in particular to a powder screening device. Background Technology

[0002] The screening device consists of a screen box, a vibrator, a vibration damping device, and a drive device. The periodic vibration force of the vibrator causes the screen box to reciprocate, causing the material to be thrown up and down on the screen mesh. The material is then filtered or classified through the screen holes, with fine particles passing through the screen and coarse particles being discharged along the screen surface.

[0003] Metal powders generally require a particle size of less than 500μm. During the powder sieving process, powder particles may get stuck in the sieve holes, causing some sieve meshes to become blocked and affecting sieving efficiency. Existing powder screening devices for metal powders generally improve sieving efficiency by adjusting vibration parameters or replacing the sieve, but the effect of adjusting parameters is not significant. Replacing the sieve during production can cause quality problems for the metal powder, as well as affect production efficiency and increase production costs.

[0004] Therefore, this utility model proposes a powder screening device. Utility Model Content

[0005] This invention provides a powder screening device that can solve the problem in the prior art where powders with a similar mesh size to the sieve mesh get stuck in the mesh, causing some powders with qualified particle sizes to fail to pass through the sieve normally.

[0006] A powder screening device, comprising: The machine body comprises a screen, an anti-clogging component one, and an anti-clogging component two. A support frame is located at the bottom of the machine body. The screen is housed within the machine body. Anti-clogging component one is positioned above the screen and cleans powder clogging the screen mesh; anti-clogging component one includes a rotating shaft rotatably connected to the inner wall of the machine body; a spring two is connected to the side wall of the rotating shaft; the other end of the spring two is connected to a spring ball one. Anti-clogging component two is positioned above the screen and works in conjunction with anti-clogging component one to further clean powder clogging the screen mesh; anti-clogging component two includes multiple spring balls two placed on the screen.

[0007] Preferably, two sets of anti-clogging components are arranged horizontally within the body.

[0008] Preferably, a motor is provided on the side wall of the machine body; the drive end of the motor is connected to one of the rotating shafts; pulleys are provided on both rotating shafts; and a belt is wound between the two pulleys.

[0009] Preferably, multiple sets of spring 2 and elastic ball 1 are arranged in a ring array around the central axis of the rotation axis.

[0010] Preferably, multiple sets of spring 2 and elastic ball 1 are arranged radially at equal intervals along the axis of rotation.

[0011] Preferably, the upper end of the screen is provided with a stop to block the multiple elastic balls.

[0012] Preferably, the upper end of the screen is also provided with a rebound element; multiple sets of rebound elements are provided at equal intervals along the stop.

[0013] Preferably, the rebound component includes a base plate disposed at the upper end of the screen; a rotating plate is rotatably connected to one side of the base plate; a spring is connected between the base plate and the rotating plate; and a rubber pad is provided at the upper end of the rotating plate.

[0014] Preferably, the end of the screen furthest from the feed inlet is inclined downwards.

[0015] Preferably, the machine body is equipped with a vibration motor; the machine body and the support are connected by multiple springs.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: This powder screening device includes a rotating shaft rotatably connected to the inner wall of the machine body; a second spring is connected to the side wall of the rotating shaft; and a first elastic ball is connected to the other end of the second spring. An anti-clogging component two is positioned above the screen mesh and works in conjunction with the first anti-clogging component to further clean the powder clogging the screen mesh; the second anti-clogging component two includes multiple second elastic balls placed on the screen mesh. By causing the multiple first and second elastic balls to continuously impact the screen mesh, a significant impact force is generated, thereby shaking out the powder clogging the screen mesh, helping to keep the screen mesh unobstructed, reducing clogging during the screening process, and thus improving screening efficiency. Compared to traditional manual cleaning or shutdown cleaning methods, using first and second elastic balls can significantly reduce downtime and improve production efficiency. At the same time, the maintenance costs of first and second elastic balls are also low because they are highly durable and reusable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the powder screening device of this utility model; Figure 2 This is a cross-sectional view of the powder screening device of this utility model; Figure 3 This is a schematic diagram of the anti-clogging component of this utility model; Figure 4 This is a schematic diagram of the two-part structure of the anti-clogging component of this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Machine body; 2. Support frame; 3. Spring 1; 4. Vibrating motor; 5. Screen; 6. Anti-clogging component 1; 61. Rotating shaft; 62. Spring 2; 63. Elastic ball 1; 64. Motor; 65. Pulley; 66. Belt; 7. Anti-clogging component 2; 71. Elastic ball 2; 72. Stop; 73. Base plate; 74. Rotating plate; 75. Spring 3; 76. Rubber pad. Detailed Implementation

[0019] The specific embodiments of this utility model are described in detail below, but it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0020] like Figure 1-4 As shown in the figure, the powder screening device provided by this utility model embodiment includes a machine body 1, a screen 5, an anti-clogging component 6, and an anti-clogging component 7. The machine body 1 has a feed inlet at its upper end, a screened powder outlet at its lower end, and a non-screened powder outlet on one side. A support 2 is provided below the machine body 1. The screen 5 is disposed inside the machine body 1. The anti-clogging component 6 is disposed above the screen 5 to clean the powder clogging the mesh of the screen 5; the anti-clogging component 6 includes a rotating shaft 61 rotatably connected to the inner wall of the machine body 1; a spring 62 is connected to the side wall of the rotating shaft 61; and an elastic ball 63 is connected to the other end of the spring 62. The anti-clogging component 7 is disposed above the screen 5 and cooperates with the anti-clogging component 6 to further clean the powder clogging the mesh of the screen 5; the anti-clogging component 7 includes multiple elastic balls 71 placed on the screen 5.

[0021] Further explanation: Two sets of anti-clogging components 6 are arranged laterally within the machine body 1. A motor 64 is located on the side wall of the machine body 1; the drive end of the motor 64 is connected to one of the rotating shafts 61; each of the two rotating shafts 61 is equipped with a pulley 65; a belt 66 is wound between the two pulleys 65. The motor 64 drives the connected rotating shaft 61 and pulleys 65 to rotate, thereby driving the belt 66 to transmit power, causing the two sets of anti-clogging components 6 to rotate synchronously. This allows for cleaning of different parts of the screen 5, expanding the cleaning range. Multiple sets of springs 62 and elastic balls 63 are arranged in a circular array around the central axis of the rotating shaft 61. Multiple sets of springs 62 and elastic balls 63 are arranged radially and equidistantly along the rotating shaft 61, with different angles between the multiple sets of springs 62, elastic balls 63, and the rotating shaft 61. This causes multiple elastic balls 63 to impact the screen 5 in batches, increasing the impact frequency of the elastic balls 63 and thus improving cleaning efficiency.

[0022] To further explain, the upper end of the screen 5 is equipped with a stop 72 to block multiple elastic balls 71. This can enclose the multiple elastic balls 71 above the screen 5, preventing them from jumping out of the machine body 1. The upper end of the screen 5 is also equipped with a rebound component; multiple sets of rebound components are equidistantly arranged along the stop 72, with gaps between the sets of rebound components to allow powder that does not pass through the screen to pass through. The rebound component includes a base plate 73 set at the upper end of the screen 5; a rotating plate 74 is rotatably connected to one side of the base plate 73; a spring 75 is connected between the base plate 73 and the rotating plate 74; and a rubber pad 76 is provided at the upper end of the rotating plate 74. When the elastic ball 71 hits the rubber pad 76, it compresses the spring 75, and the spring 75 rebounds, knocking the elastic ball 71 in the opposite direction, allowing the elastic ball to remain active on the screen 5 for a long time. This also prevents the elastic ball 71 from accumulating near the stop 72.

[0023] Anti-clogging component 6 exerts a strong impact on screen 5, but its impact range is small. Anti-clogging component 7 exerts a weaker impact on screen 5, but its impact range is larger. Furthermore, when elastic ball 63 strikes screen 5, it simultaneously causes elastic ball 71 on screen 5 to bounce, the two components working in tandem. Through the coordinated operation of anti-clogging components 6 and 7, multiple elastic balls 63 and 71 continuously impact screen 5, creating a significant impact force that dislodges the powder clogging the screen, helping to keep the screen unobstructed, reducing clogging during screening, and thus improving screening efficiency. Compared to traditional manual cleaning or shutdown cleaning methods, using elastic balls 63 and 71 significantly reduces downtime and improves production efficiency. At the same time, the maintenance costs of elastic balls 63 and 71 are also low due to their high durability and reusability.

[0024] To further explain, the end of the screen 5 furthest from the feed inlet is inclined downwards to allow the powder to flow smoothly downwards. Two vibration motors 4 are installed on the machine body 1; the machine body 1 and the support 2 are connected by multiple springs 3.

[0025] The working principle of this utility model is as follows: During operation, the powder is first fed into the machine body 1 through the feed inlet. Then, the vibration motor 4 is started to drive the machine body 1 and the screen 5 to vibrate, thereby screening the powder. During screening, the starting motor 64 drives the connected rotating shaft 61 and pulley 65 to rotate, thereby driving the belt 66 to drive the transmission, so that the spring 62 and the elastic ball 63 in the two sets of anti-clogging components 6 rotate synchronously, thereby causing the elastic ball 63 to repeatedly hammer the screen 5. At the same time, the vibration motor 4 and the anti-clogging components 6 work together to drive the screen 5 to vibrate, thereby causing multiple elastic balls 71 to repeatedly bounce on the screen 5. When multiple elastic balls 71 bounce onto the rotating plate 74, they compress the spring 75. The spring 75 rebounds and knocks the elastic balls 71 away in the opposite direction, so that the elastic balls can remain active on the screen 5 for a long time. Through the coordinated operation of anti-clogging component 6 and anti-clogging component 7, multiple elastic balls 63 and 71 continuously impact the screen 5, causing a large impact force on the screen 5, thereby shaking out the powder material that is blocked inside the screen 5, which helps to keep the screen 5 unobstructed.

[0026] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A powder screening device, characterized in that, include Body (1); A support (2) is provided below the body (1); A screen (5) is installed inside the machine body (1); An anti-clogging component 1 (6) is set above the screen (5) to clean the powder clogging inside the screen (5); the anti-clogging component 1 (6) includes a rotating shaft (61) rotatably connected to the inner wall of the machine body (1); a spring 2 (62) is connected to the side wall of the rotating shaft (61); and an elastic ball 1 (63) is connected to the other end of the spring 2 (62). And an anti-clogging component 2 (7) disposed above the screen (5) and working in conjunction with the anti-clogging component 1 (6) to further clean the powder clogging inside the screen (5); the anti-clogging component 2 (7) includes multiple elastic balls 2 (71) placed on the screen (5).

2. The powder screening device according to claim 1, characterized in that, The anti-clogging component 1 (6) has two sets arranged horizontally inside the body (1).

3. The powder screening device according to claim 2, characterized in that, The side wall of the body (1) is provided with a motor (64); the drive end of the motor (64) is connected to one of the rotating shafts (61); both rotating shafts (61) are provided with pulleys (65); a belt (66) is wound between the two pulleys (65).

4. The powder screening device according to claim 3, characterized in that, Multiple sets of springs (62) and elastic balls (63) are arranged in a ring around the central axis of the pivot (61).

5. A powder screening device according to claim 4, characterized in that, Multiple sets of spring 2 (62) and elastic ball 1 (63) are arranged radially at equal intervals along the axis of rotation (61).

6. The powder screening device according to claim 1, characterized in that, The upper end of the sieve (5) is provided with a stop (72) to block multiple elastic balls (71).

7. A powder screening device according to claim 6, characterized in that, The upper end of the screen (5) is also provided with a rebound component; multiple sets of rebound components are provided at equal intervals along the stop (72).

8. The powder screening device according to claim 7, characterized in that, The rebound component includes a base plate (73) set at the upper end of the screen (5); a rotating plate (74) is rotatably connected to one side of the base plate (73); a spring (75) is connected between the base plate (73) and the rotating plate (74); a rubber pad (76) is provided at the upper end of the rotating plate (74).

9. A powder screening device according to claim 6, characterized in that, The end of the screen (5) away from the feed inlet is tilted downwards.

10. A powder screening device according to claim 1, characterized in that, The body (1) is equipped with a vibration motor (4); the body (1) and the bracket (2) are connected by multiple springs (3).

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