Multi-stage screening mechanism for silver powder production

Abstract

The utility model discloses a multi-stage screening mechanism for silver powder production, which comprises a ladder stand and a support disc, the support disc is arranged outside the ladder stand, a support frame is arranged at the top end of the ladder stand, a screening box is arranged at the top end of the support frame, an annular filter screen is movably arranged in the screening box, and the annular filter screen is arranged in the annular filter screen. A feeding cover is mounted on the side wall of the screening box and extends into the annular filter screen. According to the silver powder screening mechanism, multi-stage screening of silver powder is achieved, nine-stage type silver powder screening is facilitated, silver powder of different particle sizes can be conveniently screened in a vibrating mode, continuous operation of the multiple sets of screening assemblies rotating circumferentially conveniently is achieved, long-time efficient operation is facilitated, and the screening efficiency is improved. The shutdown maintenance time is shortened, and the screening efficiency of the silver powder screening mechanism is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of silver powder screening mechanisms, specifically a multi-stage screening mechanism for silver powder production. Background Technology

[0002] Multi-stage screening mechanisms use multiple screens to continuously screen powders, enabling the screening and grading of powders in a short time, thereby improving production efficiency. Multi-stage screening technology can set different screen hole sizes and the number of screens as needed to achieve the best grading effect, thereby improving product quality and precision. Multi-stage screening technology can avoid waste and pollution caused by over-screening, thus achieving the goal of energy conservation and environmental protection.

[0003] For example, the multi-stage screening mechanism for silver powder production disclosed in the authorization announcement number CN218691435U includes a screening box, a support and a feeding frame. The upper outer surface of the screening box is fixedly connected to the feeding frame, and the two sides of the screening box are provided with supports. Movable grooves are opened on the outer surface of one side of the support near both ends.

[0004] Although it can prevent silver powder from accumulating on both surfaces, improve the screening efficiency of the device, and reduce the chance of screen clogging;

[0005] However, the existing silver powder screening mechanisms are not conducive to multi-stage screening of silver powder, nine-stage screening of silver powder, vibration screening of silver powder of different particle sizes, continuous operation of multi-group screening components with convenient circular rotation, and long-term efficient operation. This greatly affects the downtime for maintenance and the screening efficiency of the silver powder screening mechanism. Utility Model Content

[0006] The purpose of this utility model is to provide a multi-stage sieving mechanism for silver powder production, so as to solve the problems mentioned in the background art that the silver powder sieving mechanism is not convenient for multi-stage sieving of silver powder, not convenient for nine-stage sieving of silver powder, not convenient for vibratory sieving of silver powder of different particle sizes, not convenient for convenient continuous operation of multi-group sieving components in a circular rotation, not convenient for long-term efficient operation, affecting downtime maintenance time, and affecting the sieving efficiency of the silver powder sieving mechanism.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage sieving mechanism for silver powder production, comprising a ladder and a support plate. The support plate is provided on the outside of the ladder, a support frame is installed at the top of the ladder, and a sieving box is installed at the top of the support frame. An annular filter screen is movably installed inside the sieving box. A feed hood is installed on the side wall of the sieving box, extending into the interior of the annular filter screen. A discharge pipe is installed at the bottom of the sieving box below the feed hood. A telescopic cylinder is movably fitted onto the surface of the discharge pipe. A positioning block is installed at the bottom of the discharge pipe, and a cylinder is installed on the side wall of the positioning block. The output end of the cylinder is connected to the telescopic cylinder. The annular filter screen... A discharge hood is installed inside the screening box on one side of the screen, and the discharge hood extends to the outside of the screening box. A cross plate is set at the top of the support plate, and four sets of vibrating motors with equal spacing are installed at the bottom of the cross plate. A support column is installed at the center of the cross plate, and a cross is installed at the top of the support column. Four sets of connecting blocks with equal spacing are installed at the top of the cross. Elastic support rods are symmetrically and movably installed at the bottom of each connecting block. The elastic support rods extend to the surface of the cross plate and are connected to the cross plate. Two sets of support sliders are installed at the bottom of the cross plate, and the support sliders are slidably connected to the support plate. Four sets of receiving trays with equal spacing are installed at the top of the cross plate on one side of the support column.

[0008] Preferably, each receiving tray is equipped with nine sets of filter trays at equal intervals at its top, and each filter tray is equipped with a circular filter screen at its bottom.

[0009] Preferably, a first motor is installed on the side of the top of the support frame away from the screening box, and a first support block is provided on the side of the top of the support frame close to the screening box.

[0010] Preferably, a second support block is provided on the top of the support frame near the other side of the screening box, and a first shaft is installed at the output end of the first motor.

[0011] Preferably, the first shaft passes through the first support block and extends to the outside of the screening box, and the first shaft is movably connected to the second support block.

[0012] Preferably, a rotating frame is fitted onto the first shaft surface inside the sieving box, and the rotating frame is connected to the annular filter screen.

[0013] Preferably, a second motor is installed inside the support disk, a synchronous pulley assembly is installed at the output end of the second motor, and a second shaft is provided at the center of the support disk.

[0014] Preferably, the synchronous pulley assembly is connected to the second shaft, and the end of the second shaft away from the synchronous pulley assembly is connected to the cross disc.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the silver powder screening mechanism not only realizes multi-stage screening of silver powder, facilitating nine-stage screening of silver powder and vibration screening of silver powder of different particle sizes, but also realizes the continuous operation of convenient circumferential rotating multi-group screening components, facilitating long-term and efficient operation, shortening downtime for maintenance, and improving the screening efficiency of the silver powder screening mechanism.

[0016] (1) When silver powder is being screened, the staff climbs the ladder and pours the silver powder into the feed hood. The silver powder enters the annular filter screen inside the screening box through the feed hood. When larger particles pass through the annular filter screen, they will roll to the discharge hood and fall to be collected. When fine particles pass through the surface of the annular filter screen, they will fall through the holes on the surface of the annular filter screen and slide to the bottom of the screening box to the discharge pipe. The cylinder drives the telescopic cylinder to move in and out on the surface of the discharge pipe to facilitate positioning and accurate delivery to the next screening area. When running to the second screening area, the silver powder falls through the telescopic cylinder onto the surface of the circular filter screen inside the filter disc. The vibration motor drives the cross disc to vibrate. The cross disc drives the receiving disc, filter disc, circular filter screen and silver powder to vibrate. The silver powder is screened layer by layer through multiple sets of filter discs. Finally, the fine silver powder falls into the inside of the receiving disc for collection. This realizes the multi-level screening of silver powder by the silver powder screening mechanism, which facilitates the nine-level screening of silver powder and the vibration screening of silver powder of different particle sizes.

[0017] (2) The first motor drives the first shaft to rotate, which in turn drives the rotating frame and the annular filter screen to rotate, so that the silver powder can rotate and fall inside the annular filter screen, thereby accelerating the flow of silver powder and allowing more fine silver powder to roll to the next screening area for sieving. When the set of filter discs in the second screening area cannot rotate, the second motor drives the synchronous belt pulley assembly to drive the second shaft and the cross disc to rotate in a circular motion. The cross disc drives the filter discs to rotate in a circular motion, so that the empty filter discs rotate to the telescopic cylinder for the next set of filter discs to be screened, which facilitates the cleaning of the previous set of filter discs. This realizes the convenient circular rotation of the silver powder screening mechanism and the continuous operation of the multi-group screening components, which facilitates long-term and efficient operation, shortens the downtime for maintenance, and sequentially screens the silver powder, thereby improving the screening efficiency of the silver powder screening mechanism. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 3This is a three-dimensional structural diagram of the support plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the main structure of the support plate of this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the synchronous belt pulley assembly of this utility model;

[0023] Figure 6 This is a three-dimensional schematic diagram of the cross-shaped disk structure of this utility model;

[0024] Figure 7 This is a three-dimensional structural diagram of the vibration motor of this utility model;

[0025] Figure 8 This is a three-dimensional structural diagram of the filter disc of this utility model;

[0026] Figure 9 This is a schematic diagram of the main structure of the sieve box of this utility model;

[0027] Figure 10 This is a three-dimensional structural diagram of the sieving box of this utility model;

[0028] Figure 11 This is a schematic diagram of the main cross-sectional structure of the sieve box of this utility model.

[0029] Figure 12 This is a side view sectional structural diagram of the sieve box of this utility model.

[0030] In the diagram: 1. Ladder; 2. Support plate; 3. Support frame; 4. Feed hood; 5. Discharge hood; 6. Discharge pipe; 7. Telescopic cylinder; 8. Positioning block; 9. Cylinder; 10. Screening box; 11. Annular filter screen; 12. First motor; 13. First shaft; 14. First support block; 15. Rotating frame; 16. Second support block; 17. Support column; 18. Cross; 19. Connecting block; 20. Elastic support rod; 21. Receiving plate; 22. Second motor; 23. Circular filter screen; 24. Synchronous belt pulley assembly; 25. Second shaft; 26. Cross plate; 27. Vibrating motor; 28. Support slide head; 29. ​​Filter plate. Detailed Implementation

[0031] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0032] Please see Figure 1-12This utility model provides an embodiment of a multi-stage sieving mechanism for silver powder production, comprising a ladder 1 and a support plate 2. The support plate 2 is provided on the outside of the ladder 1, and a support frame 3 is installed at the top of the ladder 1. A sieving box 10 is installed at the top of the support frame 3. An annular filter screen 11 is movably installed inside the sieving box 10. A feed hood 4 is installed on the side wall of the sieving box 10, and the feed hood 4 extends into the interior of the annular filter screen 11. A discharge pipe 6 is installed at the bottom of the sieving box 10 below the feed hood 4. A telescopic cylinder 7 is movably fitted on the surface of the discharge pipe 6. A positioning block 8 is installed at the bottom of the discharge pipe 6. A cylinder 9 is installed on the side wall of the positioning block 8, and the output end of the cylinder 9 is connected to the telescopic cylinder 7. A sieving box 10 is installed inside the sieving box 10 on one side of the annular filter screen 11. The discharge hood 5 extends to the outside of the screening box 10. A cross plate 26 is provided at the top of the support plate 2. Four sets of vibrating motors 27 with equal spacing are installed at the bottom of the cross plate 26. A support column 17 is installed at the center of the cross plate 26. A cross 18 is installed at the top of the support column 17. Four sets of connecting blocks 19 with equal spacing are installed at the top of the cross 18. Elastic support rods 20 are symmetrically and movably installed at the bottom of each connecting block 19. The elastic support rods 20 extend to the surface of the cross plate 26 and are connected to the cross plate 26. Two sets of support slides 28 are installed at the bottom of the cross plate 26 and are slidably connected to the support plate 2. Four sets of receiving plates 21 with equal spacing are installed at the top of the cross plate 26 on one side of the support column 17.

[0033] Nine sets of filter discs 29 with equal spacing are installed at the top of the receiving tray 21, and a circular filter screen 23 is installed at the bottom of the filter disc 29.

[0034] When silver powder is being screened, workers climb ladder 1 and pour the silver powder into the feed hood 4. The silver powder passes through the feed hood 4 and enters the annular filter 11 inside the screening box 10. Larger particles passing through the annular filter 11 roll to the discharge hood 5 and fall for collection. Smaller particles passing through the surface of the annular filter 11 fall through the holes on the surface of the annular filter 11 and slide to the bottom of the screening box 10, where they slide to the discharge pipe 6. Supported by the positioning block 8, the cylinder 9 drives the telescopic cylinder 7 to extend and retract on the surface of the discharge pipe 6 to facilitate precise positioning and conveying to the next screening area. When the silver powder reaches the second screening area, it falls through the telescopic cylinder 7 into the inner circular filter disc 29. On the surface of the filter screen 23, the vibration motor 27 is turned on. Supported by the cross disc 26, the vibration motor 27 drives the cross disc 26 to vibrate. Under the action of the support column 17, cross 18, connecting block 19, and elastic support rod 20, the cross disc 26 drives the receiving disc 21, filter disc 29, circular filter screen 23, and silver powder to vibrate. The silver powder is screened layer by layer by multiple sets of filter discs 29. Finally, the fine silver powder falls into the inside of the receiving disc 21 for collection. This facilitates multi-level and efficient screening of silver powder, and facilitates nine-level screening to achieve the required fine powder. This realizes multi-level screening of silver powder by the silver powder screening mechanism, which facilitates nine-level screening of silver powder and facilitates vibration screening to separate silver powder of different particle sizes.

[0035] A first motor 12 is installed on the side of the top of the support frame 3 away from the screening box 10, and a first support block 14 is provided on the side of the top of the support frame 3 close to the screening box 10.

[0036] A second support block 16 is provided on the top of the support frame 3 near the other side of the screening box 10, and a first shaft 13 is installed at the output end of the first motor 12.

[0037] The first shaft 13 passes through the first support block 14 and extends to the outside of the sieve box 10. The first shaft 13 is movably connected to the second support block 16. A rotating frame 15 is fitted on the surface of the first shaft 13 inside the sieve box 10, and the rotating frame 15 is connected to the annular filter screen 11.

[0038] A second motor 22 is installed inside the support plate 2. A synchronous belt pulley assembly 24 is installed at the output end of the second motor 22. A second shaft 25 is set at the center of the support plate 2.

[0039] The timing belt pulley assembly 24 is connected to the second shaft 25, and the end of the second shaft 25 away from the timing belt pulley assembly 24 is connected to the cross disc 26;

[0040] When higher speed is needed for sieving, the first motor 12 is turned on. Supported by the support frame 3, the first motor 12 drives the first shaft 13 to rotate. Supported by the first support block 14 and the second support block 16, the first shaft 13 drives the rotating frame 15 and the annular filter screen 11 to rotate, so that the silver powder can rotate and fall fully inside the annular filter screen 11, thereby accelerating the flow of silver powder and allowing more fine silver powder to roll to the next sieving area for sieving. When a set of filter discs 29 in the second sieving area cannot operate at full speed, the second motor 22 is turned on. Supported by the support disc 2, the second motor 22... The synchronous belt pulley assembly 24 drives the second shaft 25 and the cross disc 26 to rotate in a circular motion. The cross disc 26 drives the filter disc 29 to rotate in a circular motion, so that the unused filter disc 29 rotates to the telescopic cylinder 7 to screen the next set of filter discs 29. This facilitates cleaning of the previous set of filter discs 29, enables long-term and efficient operation, and reduces downtime for maintenance. It realizes the convenient circular rotation of the silver powder screening mechanism for continuous operation of multiple screening components, which facilitates long-term and efficient operation, reduces downtime for maintenance, and sequentially screens silver powder, thereby improving the screening efficiency of the silver powder screening mechanism.

[0041] Working Principle: When screening silver powder, the operator climbs ladder 1 and pours the silver powder into the feed hood 4. The silver powder enters the annular filter 11 inside the screening box 10 through the feed hood 4. Larger particles passing through the annular filter 11 roll to the discharge hood 5 and fall for collection. Smaller particles passing through the surface of the annular filter 11 fall through the holes on the surface of the annular filter 11 and slide to the bottom of the screening box 10 to the discharge pipe 6. Cylinder 9 drives telescopic cylinder 7 to extend and retract on the surface of the discharge pipe 6 to facilitate precise positioning and conveying to the next screening area. When it reaches the second screening area, the silver powder falls through the telescopic cylinder 7 onto the surface of the circular filter 23 inside the filter disc 29. Vibration motor 27 drives cross disc 26 to vibrate. Cross disc 26 drives the receiving disc 21, filter disc 29, circular filter 23, and silver powder to vibrate. The silver powder passes through multiple sets of filters. After the silver powder is screened layer by layer by disc 29, the finest silver powder falls into the receiving disc 21 for collection. The first motor 12 drives the first shaft 13 to rotate, which in turn drives the rotating frame 15 and the annular filter screen 11 to rotate, allowing the silver powder to rotate and fall fully inside the annular filter screen 11, thus accelerating the flow of silver powder and allowing more fine silver powder to roll to the next screening area for further screening. When a set of filter discs 29 in the second screening area cannot keep up with the rotation, the second motor 22 drives the synchronous belt pulley assembly 24 to drive the second shaft 25 and the cross disc 26 to rotate in a circular motion. The cross disc 26 drives the filter discs 29 to rotate in a circular motion, allowing the remaining filter discs 29 to rotate to the telescopic cylinder 7 for screening by the next set of filter discs 29. This facilitates the cleaning of the previous set of filter discs 29, enables long-term and efficient operation, and reduces downtime for maintenance, thus completing the operation of the silver powder screening mechanism.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A multi-stage sieving mechanism for silver powder production, characterized in that: The system includes a ladder (1) and a support plate (2). The support plate (2) is provided on the outside of the ladder (1). A support frame (3) is installed at the top of the ladder (1). A screening box (10) is installed at the top of the support frame (3). An annular filter screen (11) is movably installed inside the screening box (10). A feed hood (4) is installed on the side wall of the screening box (10) and extends into the interior of the annular filter screen (11). A discharge pipe (6) is installed at the bottom of the screening box (10) below the feed hood (4). A telescopic cylinder (7) is movably fitted on the surface of the discharge pipe (6). A positioning block (8) is installed at the bottom of the discharge pipe (6). A cylinder (9) is installed on the side wall of the positioning block (8). The output end of the cylinder (9) is connected to the telescopic cylinder (7). A discharge hood (5) is installed inside the screening box (10) on one side of the annular filter screen (11). 5) Extending to the outside of the screening box (10), the top of the support plate (2) is provided with a cross plate (26), the bottom of the cross plate (26) is equipped with four sets of vibration motors (27) at equal intervals, the center of the cross plate (26) is provided with a support column (17), the top of the support column (17) is provided with a cross (18), the top of the cross (18) is provided with four sets of connecting blocks (19) at equal intervals, the bottom of the connecting blocks (19) is symmetrically and movably provided with elastic support rods (20), the elastic support rods (20) all extend to the surface of the cross plate (26), and the elastic support rods (20) are connected to the cross plate (26), the bottom of the cross plate (26) is provided with two sets of support slides (28), and the support slides (28) are slidably connected to the support plate (2), the top of the cross plate (26) on one side of the support column (17) is provided with four sets of receiving plates (21) at equal intervals.

2. The multi-stage sieving mechanism for silver powder production according to claim 1, characterized in that: The top of each receiving tray (21) is equipped with nine sets of filter trays (29) with equal spacing, and the bottom of each filter tray (29) is equipped with a circular filter screen (23).

3. The multi-stage sieving mechanism for silver powder production according to claim 1, characterized in that: A first motor (12) is installed on the side of the top of the support frame (3) away from the screening box (10), and a first support block (14) is provided on the side of the top of the support frame (3) close to the screening box (10).

4. The multi-stage sieving mechanism for silver powder production according to claim 3, characterized in that: A second support block (16) is provided on the other side of the top of the support frame (3) near the sieve box (10), and a first shaft (13) is installed at the output end of the first motor (12).

5. The multi-stage sieving mechanism for silver powder production according to claim 4, characterized in that: The first shaft (13) passes through the first support block (14) and extends to the outside of the sieve box (10), and the first shaft (13) is movably connected to the second support block (16).

6. The multi-stage screening mechanism for silver powder production according to claim 1, characterized in that: The first shaft (13) inside the sieve box (10) is fitted with a rotating frame (15), and the rotating frame (15) is connected to the annular filter screen (11).

7. The multi-stage sieving mechanism for silver powder production according to claim 1, characterized in that: The support disk (2) is equipped with a second motor (22), and a synchronous belt pulley assembly (24) is installed at the output end of the second motor (22). A second shaft (25) is provided at the center of the support disk (2).

8. The multi-stage screening mechanism for silver powder production according to claim 7, characterized in that: The synchronous pulley assembly (24) is connected to the second shaft (25), and the end of the second shaft (25) away from the synchronous pulley assembly (24) is connected to the cross disc (26).

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