Powder screening device

Abstract

The utility model relates to a powder screening device, which belongs to the technical field of powder screening and comprises a mounting table, the top of the mounting table is fixedly connected with a limit support, two ends of the top of the limit support are fixedly connected with adjusting rods, and a support plate is slidably mounted between the two adjusting rods. The powder particle screening device has the advantages that when powder particles need to be screened, the powder particles can be poured into the uppermost screening frame, the multiple screening frames are stacked together, then the connecting rod can be pushed to do eccentric motion through rotation of the round wheel, the hammer handle can be driven by the movable rod to move close to or away from the hit part, and therefore the powder particles can be screened. The multiple screens can vibrate by knocking the knocked part on the knocked plate through the knocking head, so that powder particles smaller than meshes can fall smoothly, the effect of screening the powder particles with different sizes step by step is achieved, the screening speed of the powder particles in the screens can be increased through the knocking effect of the knocking head, and the screening efficiency of the powder particles in the screens is improved. The production efficiency is improved.

Description

Technical Field

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

[0002] A powder screening device is used to screen mixed powders of different particle sizes, making them easier to classify and use. For some products made from powder, the size of the powder particles used in the production process needs to be strictly screened, thus requiring the use of a powder screening device.

[0003] In related technologies, existing powder screening devices typically use screening drums, which allow powder particles that meet the particle size requirements to be screened out from the side wall of the screening drum. However, when screening powder particles, existing powder screening devices rely on their own gravity to pass through the mesh, resulting in slow powder screening speed and reduced powder production efficiency. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the main objective of this utility model is to provide a powder screening device.

[0005] The technical solution of this utility model is as follows: A powder screening device includes a mounting platform, a limiting bracket fixedly connected to the top of the mounting platform, adjusting rods fixedly connected to both ends of the top of the limiting bracket, a support plate slidably installed between the two adjusting rods, multiple sieve frames stacked on top of the support plate, sieve meshes fixedly connected inside each sieve frame, an impact plate provided on the top of the limiting bracket, an impact receiving part fixedly connected to the top of the impact plate, a transmission box fixedly connected to the top of the mounting platform, a wheel provided inside the transmission box, a connecting rod rotatably connected to the eccentric part of the wheel, a movable rod rotatably connected to the end of the connecting rod away from the wheel, a mounting base fixedly connected to the top of the transmission box, a hammer handle rotatably installed inside the mounting base, and a hammer head fixedly connected to the end of the hammer handle away from the mounting base.

[0006] By adopting the above technical solution, the rotation of the wheel can drive the connecting rod to make an eccentric motion, thereby using the movable rod to drive the hammer handle to move closer to or away from the impact part. By striking the impact part on the impact plate with the hammer head, multiple screens can be vibrated, thereby allowing powder particles smaller than the mesh size to fall smoothly.

[0007] In a preferred embodiment, the hammer handle is rotatably connected to the end of the movable rod away from the connecting rod, and the mesh size of the plurality of screens decreases from top to bottom.

[0008] By adopting the above technical solution and setting the mesh size in a decreasing manner, it is possible to achieve the effect of screening powder particles of different sizes in stages.

[0009] In a preferred embodiment, a fixing member is slidably installed on the outer side of the adjusting rod. The two fixing members are respectively fixedly connected to the two sides of the support plate. The fixing members are threaded with locking bolts inside, and one end of each locking bolt abuts against the outer side of the adjusting rod.

[0010] By adopting the above technical solution, after the support plate is pushed to a suitable height, the fixing purpose of the fastener can be achieved by using the locking bolt.

[0011] In one preferred embodiment, a cover plate is placed on the top of one of the screen frames, and a limiting plate is fixedly connected between the tops of the two adjusting rods, with the impact plate in contact with the limiting plate.

[0012] By adopting the above technical solution and setting the impact plate, the overall impact strength can be improved, and damage can be avoided during the striking process.

[0013] In one preferred embodiment, a cover plate is placed on the top of one of the screen frames, and a limiting plate is fixedly connected between the tops of the two adjusting rods, with the impact plate in contact with the limiting plate.

[0014] By adopting the above technical solution and setting a foldable limiting plate, it is possible to check whether the impact plate and cover plate have reached the top position.

[0015] In a preferred embodiment, a servo motor is fixedly installed on the inner wall of the transmission box, and the output shaft of the servo motor is fixedly connected to the center of the wheel.

[0016] By adopting the above technical solution, the rotation of the output shaft of the servo motor can drive the wheel to rotate.

[0017] In a preferred embodiment, the bottom of each screen frame is fixedly connected with a retaining ring, and the top of both the screen frame and the support plate are provided with annular grooves that cooperate with the retaining rings.

[0018] By adopting the above technical solution, the combination of annular grooves and retaining rings can make multiple screen frames more stable during stacking.

[0019] In a preferred embodiment, a controller is fixedly mounted on the outside of the transmission box, and the servo motor is electrically connected to the controller.

[0020] By adopting the above technical solution, the controller can be used to control the servo motor.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, when it is necessary to screen powder particles, the powder particles can be poured into the uppermost sieve frame, and multiple sieve frames can be stacked together. Then, by rotating the wheel, the connecting rod can be driven to make an eccentric movement, which can use the movable rod to drive the hammer handle to move closer to or away from the impact part. By striking the impact part on the impact plate with the hammer head, multiple sieves can be vibrated, so that powder particles smaller than the mesh size can fall smoothly, achieving the effect of screening powder particles of different sizes step by step. Moreover, the striking action of the hammer head can accelerate the screening speed of powder particles in the sieve and improve production efficiency. Attached Figure Description

[0023] Figure 1 This utility model provides an overall perspective view of a powder screening device;

[0024] Figure 2 This utility model provides a schematic diagram of the internal structure of the transmission box of a powder screening device;

[0025] Figure 3 This is a rear view of a powder screening device provided by the present invention.

[0026] Legend: 1. Mounting platform; 2. Limiting bracket; 3. Adjusting rod; 4. Limiting plate one; 5. Impact plate; 6. Cover plate; 7. Support plate; 8. Fixing component; 9. Locking bolt; 10. Screen; 11. Impact part; 12. Hammer head; 13. Hammer handle; 14. Movable rod; 15. Mounting base; 16. Transmission box; 17. Wheel; 18. Servo motor; 19. Connecting rod; 20. Controller; 21. Screen frame. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] Reference Figure 1-3A powder screening device includes a mounting platform 1. A limiting bracket 2 is fixedly connected to the top of the mounting platform 1. Adjusting rods 3 are fixedly connected to both ends of the top of the limiting bracket 2. A support plate 7 is slidably installed between the two adjusting rods 3. Multiple sieve frames 21 are stacked on top of the support plate 7. A sieve mesh 10 is fixedly connected inside each sieve frame 21. An impact plate 5 is provided on the top of the limiting bracket 2. An impact receiving part 11 is fixedly connected to the top of the impact plate 5. A transmission box 16 is fixedly connected to the top of the mounting platform 1. A wheel 17 is provided inside the transmission box 16. A connecting rod 19 is rotatably connected to the eccentric part of the wheel 17. A movable rod 14 is rotatably connected to the end of the connecting rod 19 away from the wheel 17. A mounting base 15 is fixedly connected to the top of the transmission box 16. A movable rod 14 is rotatably installed inside the mounting base 15. Hammer handle 13, with hammer head 12 fixedly connected to the end of hammer handle 13 away from mounting base 15. When it is necessary to screen powder particles, the powder particles can be poured into the uppermost screen frame 21 and multiple screen frames 21 can be stacked together. Then, by rotating the wheel 17, the connecting rod 19 can be driven to make an eccentric movement. This allows the movable rod 14 to drive the hammer handle 13 to move closer to or away from the impact part 11. By striking the impact part 11 on the impact plate 5 with hammer head 12, multiple screens 10 can be vibrated, so that powder particles smaller than the mesh size can fall smoothly, achieving the effect of screening powder particles of different sizes step by step. Moreover, the striking action of hammer head 12 can accelerate the screening speed of powder particles in the screen 10 and improve production efficiency.

[0029] Specifically, the hammer handle 13 is rotatably connected to the end of the movable rod 14 away from the connecting rod 19. The mesh size of the multiple screens 10 decreases from top to bottom. By setting the mesh size in a decreasing manner, the effect of screening powder particles of different sizes can be achieved step by step. Fixing parts 8 are slidably installed on the outer side of the adjusting rod 3. The two fixing parts 8 are fixedly connected to the two sides of the support plate 7 respectively. The fixing parts 8 are threaded with locking bolts 9. By setting the adjusting rod 3, the movement of the support plate 7 can play a certain limiting role. By using the locking bolts 9, the support plate 7 can be pushed to a suitable height. The locking bolts 9 can be used to fix the fixing parts 8. One end of the locking bolts 9 is in contact with the outer side of the adjusting rod 3. A cover plate 6 is placed on the top of one of the screen frames 21. A limiting plate 4 is fixedly connected between the tops of the two adjusting rods 3. The impact plate 5 is in contact with the limiting plate 4. By setting the impact plate 5, the overall impact strength can be improved and damage can be avoided during the knocking process.

[0030] Specifically, the limiting plate 4 consists of two semicircular parts connected by a hinge. The foldable limiting plate 4 allows for monitoring of whether the impact plate 5 and cover plate 6 are at their top positions, thus preventing the screen frame 21 from slipping during impact. A servo motor 18 is fixedly installed on the inner wall of the transmission box 16. The output shaft of the servo motor 18 is fixedly connected to the center of the wheel 17. Rotation of the output shaft of the servo motor 18 drives the wheel 17 to rotate, thus transmitting power. Each screen frame 21 has a retaining ring fixedly connected to its bottom. Both the screen frame 21 and the support plate 7 have annular grooves on their tops that cooperate with the retaining rings. The cooperation between the annular grooves and retaining rings ensures greater stability when multiple screen frames 21 are stacked. A controller 20 is fixedly installed on the outer side of the transmission box 16. The servo motor 18 is electrically connected to the controller 20, allowing control of the servo motor 18.

[0031] Working principle: First, when it is necessary to screen powder particles, the powder particles can be poured into the uppermost sieve frame 21. Then, multiple sieve frames 21 are stacked together and placed on top of the support plate 7. Next, the cover plate 6 is placed in the uppermost sieve frame 21, and the impact plate 5 is placed on top of the cover plate 6. Then, the operator can lift the support plate 7 by hand and fold the limiting plate 4 to check whether the impact plate 5 and the cover plate 6 are in the top position. When they reach the appropriate position, the support plate 7 and the fixing part 8 can be fixed with the locking bolt 9.

[0032] After the preliminary work is completed, the servo motor 18 can be started by the controller 20. The rotation of the wheel 17 can drive the connecting rod 19 to make an eccentric movement. This allows the movable rod 14 to drive the hammer handle 13 to move closer to or away from the impact part 11. The hammer head 12 strikes the impact part 11 on the impact plate 5, which can cause multiple screens 10 to vibrate. This allows powder particles smaller than the mesh size to fall smoothly, achieving the effect of screening powder particles of different sizes step by step. Furthermore, the striking action of the hammer head 12 can accelerate the screening speed of powder particles in the screen 10, improving production efficiency.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A powder screening device comprising a mounting table (1), characterized in that: The top of the mounting table (1) is fixedly connected with a limiting support (2), both ends of the top of the limiting support (2) are fixedly connected with an adjusting rod (3), a supporting plate (7) is slidably installed between the two adjusting rods (3), a plurality of sieve frames (21) are stacked on the top of the supporting plate (7), sieve nets (10) are fixedly connected in the sieve frames (21), a receiving plate (5) is arranged on the top of the limiting support (2), and a receiving part (11) is fixedly connected to the top of the receiving plate (5). The top of the mounting table (1) is fixedly connected with a transmission box (16), the transmission box (16) is internally provided with a round wheel (17), the eccentric portion of the round wheel (17) is rotatably connected with a connecting rod (19), one end of the connecting rod (19) away from the round wheel (17) is rotatably connected with a movable rod (14), the top of the transmission box (16) is fixedly connected with a mounting seat (15), the mounting seat (15) is rotatably installed with a hammer handle (13), and one end of the hammer handle (13) away from the mounting seat (15) is fixedly connected with a hammer head (12).

2. A powder screening device according to claim 1, characterized in that: The hammer handle (13) and the movable rod (14) are rotatably connected away from the connecting rod (19), and the mesh sizes of the plurality of sieve nets (10) gradually decrease from top to bottom.

3. A powder screening device according to claim 1, wherein: The outer sides of the adjusting rods (3) are slidably installed with fixing members (8), the two fixing members (8) are fixedly connected with the two sides of the supporting plate (7), the interiors of the fixing members (8) are threadedly connected with locking bolts (9), and the locking bolts (9) are in abutment with the outer sides of the adjusting rods (3).

4. A powder screening device according to claim 1, wherein: The top of one of the sieve frames (21) is provided with a cover plate (6), the top of the two adjusting rods (3) is fixedly connected with a limiting plate (4), and the receiving plate (5) is in contact with the limiting plate (4).

5. A powder screening device according to claim 4, wherein: The limiting plate (4) is composed of two semicircular members, a hinge is arranged between the two semicircular members, and the two semicircular members are connected through the hinge.

6. A powder screening device according to claim 1, wherein: The inner wall of the transmission box (16) is fixedly installed with a servo motor (18), and the output shaft of the servo motor (18) is fixedly connected with the center of the round wheel (17).

7. A powder screening device according to claim 1, wherein: The bottoms of the sieve frames (21) are fixedly connected with snap rings, and the tops of the sieve frames (21) and the supporting plate (7) are provided with annular clamping grooves matched with the snap rings.

8. A powder screening device according to claim 6, wherein: The outer side of the transmission box (16) is fixedly installed with a controller (20), and the servo motor (18) is electrically connected with the controller (20).

Images