Novel multi-stage screening device

Abstract

The utility model discloses a novel multi-stage screening device which comprises a device base, a screening mechanism is arranged on the device base, and a feeding mechanism is arranged on the device base. According to the novel multi-stage screening device provided by the utility model, the stirring tank can descend to the lowest position by controlling the first motor, then an operator can pour a relatively large amount of electronic paste into the stirring tank at a time, and then the second motor can be controlled to drive the stirring rod to rotate, so that the electronic paste is uniformly stirred; then a first motor is controlled to drive the stirring tank to ascend to a proper position, then a third motor can be controlled to enable the box body to move to the position below the stirring tank, then an electromagnetic valve switch is controlled to enable electronic paste in the stirring tank to be quantitatively put into a first-stage screen for screening, and the stirring tank is lowered to the lowest position for feeding; an operator does not need to lift the material barrel to a high position during feeding, physical output of the operator is saved, and meanwhile a large amount of slurry can be input at a time.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic slurry production, in particular to a novel multi-stage screening device. Background Art

[0002] Electronic paste is a viscous liquid material used in the manufacture of electronic devices, typically composed of solid particles, solvents, and additives. It is widely used in printed circuits, solar cells, ceramic capacitors, and displays. The main components of electronic paste include conductive materials (such as silver or copper) or insulating materials (such as oxides), as well as solvents to adjust viscosity and fluidity and additives to improve stability. The characteristics of electronic paste directly affect the performance of the final product, making its formulation and preparation process crucial.

[0003] For example, a Chinese utility model patent (CN220048896U) discloses a multi-layer screening device for electronic slurry production, which records: "Through the design of an automated coordinated screening device, the device is convenient for completing the initial filtration of the slurry with multi-layer linkage deduction, thereby avoiding excessive impurities and bubbles inside the slurry, improving the screening quality and efficiency, and through the design of a flipping thermal stirring synchronous structure, the device is convenient for rapid thermal stirring processing of the screened slurry, making it convenient for the device to complete multiple steps synchronously, greatly improving the practicality of the device." It also records: "However, the existing devices often perform single screening during the screening process and lack a coordinated deduction structure, resulting in poor overall efficiency and screening effect, and lack of a synchronous coordinated manufacturing structure." Technical problems.

[0004] To sum up the above, it can be seen that the prior art uses the first screening plate and the second screening plate to grade and screen the electronic paste. However, this method has the following technical problems: However, during the actual material loading process of the device, since the electronic paste has a certain viscosity, it takes a certain amount of time for the electronic paste to pass through the first screening plate, which in turn causes the workers to pour the electronic paste on the first screening plate multiple times in a quantitative manner, which is time-consuming and labor-intensive, and reduces production efficiency. For this reason, the present application proposes a new multi-stage screening device to provide a new technical solution to solve the technical problems mentioned in the above patents. Utility Model Content

[0005] Based on this, it is necessary to provide a new multi-stage screening device to address the above technical problems. By controlling the first motor, the stirring tank can be lowered to the lowest point, and then the operator can pour a relatively large amount of electronic slurry into the stirring tank at one time, and then the second motor can be controlled to drive the stirring rod to rotate to stir the electronic slurry evenly, and then the first motor can be controlled to drive the stirring tank to rise to a suitable position, and then the third motor can be controlled to move the box to the bottom of the stirring tank, and then the solenoid valve switch can be controlled to make the electronic slurry in the stirring tank quantitatively put onto the first-level screen for screening, and the stirring tank is lowered to the lowest point for loading. The operator does not need to lift the bucket to a higher position when loading, saving the operator's physical energy. At the same time, more slurry can be put in at one time, reducing the frequency of loading and improving the overall production efficiency of the electronic slurry. The second motor can stir the electronic slurry, which can reduce the aggregation of particles inside the electronic slurry and improve the dispersion of the particles, reducing the blockage of the first-level screen and the second-level screen frame due to particle aggregation, reducing the frequency of subsequent maintenance of the device, and improving the practicality of the device.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The invention discloses a novel multi-stage screening device, which is applied to the production of electronic slurry.

[0008] The novel multi-stage screening device specifically comprises:

[0009] A device base, wherein a screening mechanism is provided on the device base, and a feeding mechanism is provided on the device base;

[0010] The feeding mechanism includes a stirring tank, a first connecting plate, a second connecting plate, a driving assembly, a lifting assembly, and a stirring assembly. The outer wall of the stirring tank is fixedly connected to two first connecting plates, and the outer wall of the stirring tank is fixedly connected to two second connecting plates.

[0011] As a preferred embodiment of the new multi-stage screening device provided by the present invention, the driving assembly includes a support frame, the top of the device base and near the front and rear sides are respectively fixedly connected to the support frame, the inner walls of the two support frames are respectively rotatably connected to the first threaded rods, and the two first threaded rods are rotatably connected to the top of the device base, the top of one of the support frames is fixedly connected to the mounting frame, the top of the mounting frame is fixedly installed with a first motor, the top of one of the first threaded rods near the mounting frame is fixedly connected to the output end of the first motor, the outer wall of one of the first threaded rods near the mounting frame is fixedly connected to a driving sprocket, and the outer wall of the other first threaded rod is fixedly connected to a driven sprocket, and the driving sprocket and the driven sprocket are connected by a chain transmission.

[0012] As a preferred embodiment of the new multi-stage screening device provided by the utility model, the lifting assembly includes a fixed rod, the inner walls of the two support frames are respectively fixedly connected with fixed rods, the bottom ends of the two fixed rods are fixedly connected to the top of the device base, the first connecting plate is slidably connected to the outer wall of the fixed rod, and the second connecting plate is threadedly connected to the outer wall of the first threaded rod.

[0013] As a preferred embodiment of the new multi-stage screening device provided by the present invention, the stirring assembly includes a fixed plate, the top of the stirring tank is fixedly connected to the fixed plate, the top of the fixed plate is fixedly installed with a second motor, the output end of the second motor is fixedly connected to a stirring rod, the stirring rod is rotatably connected to the inner wall of the fixed plate, and the inner wall of the stirring tank is fixedly installed with a solenoid valve.

[0014] As a preferred embodiment of the new multi-stage screening device provided by the present invention, the screening mechanism includes a box body, a brake wheel, a moving component, and a screening component. Brake wheels are fixedly installed at the bottom of the box body and near the four corners. The four brake wheels are all rollingly connected to the top of the device base.

[0015] As a preferred embodiment of the new multi-stage screening device provided by the present invention, the moving component includes a third motor, the outer wall of the device base is fixedly mounted with the third motor, the inner wall of the device base is rotatably connected to a second threaded rod, the second threaded rod is fixedly connected to the output end of the third motor, the inner wall of the device base is slidably connected to an internal threaded block, and the second threaded rod is threadedly connected to the inner wall of the internal threaded block.

[0016] As a preferred embodiment of the new multi-stage screening device provided by the present invention, the screening assembly includes a U-shaped frame, the outer wall of the box is tightly attached to the U-shaped frame, the inner wall of the U-shaped frame is fixedly connected to a first-level screen, the bottom of the U-shaped frame and near the four corners are fixedly connected to connecting rods, and the bottom end of the connecting rod is fixedly connected to a second-level screen frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model provides a novel multi-stage screening device, which controls the first motor to make the stirring tank drop to the lowest point, and then the operator can pour a relatively large amount of electronic slurry into the stirring tank at one time, and then control the second motor to drive the stirring rod to rotate to stir the electronic slurry evenly, and then control the first motor to drive the stirring tank to a suitable position, and then control the third motor to move the box to the bottom of the stirring tank, and then control the solenoid valve switch to make the electronic slurry in the stirring tank be quantitatively put onto the first-level screen for screening, and lowering the stirring tank to the lowest point to load the material, so that the operator does not need to lift the material bucket to a higher position when loading the material, saving the operator's physical exertion, and at the same time, more slurry can be put in at one time, reducing the frequency of loading, and improving the overall production efficiency of the electronic slurry, and the second motor can be used to stir the input electronic slurry, which can reduce the aggregation of particles inside the electronic slurry, and improve the dispersion of the particles, reduce the blockage of the first-level screen and the second-level screen frame due to particle aggregation, reduce the frequency of subsequent maintenance of the device, and improve the practicality of the device.

[0019] The novel multi-stage screening device provided by the utility model can drive the second threaded rod to rotate by controlling the third motor, so that the box body can move under the cooperation of the internal thread block and the base of the device. After a proper amount of slurry is stored in the stirring tank, the box body can be controlled to move to the bottom of the stirring tank, and then the electronic slurry in the stirring tank can be dropped onto the first-level screen by controlling the solenoid valve. Then, the second threaded rod can be driven to rotate alternately forward and reverse by controlling the third motor, so that the box body can move back and forth under the stirring tank, so that the slurry is more evenly distributed on the screen, thereby increasing the contact area between the solid particles and the screen, improving the screening efficiency, and thus improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the solutions in the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the overall structure of the novel multi-stage screening device provided by the utility model;

[0022] Figure 2 A schematic diagram of the internal structure of the support frame of the novel multi-stage screening device provided by the utility model;

[0023] Figure 3 A schematic diagram of the internal structure of the support frame and the stirring tank of the novel multi-stage screening device provided by the utility model;

[0024] Figure 4 This is an enlarged schematic diagram of the structure of the feeding mechanism of the novel multi-stage screening device provided by the utility model;

[0025] Figure 5 This is a schematic cross-sectional diagram of the partial structure of the screening mechanism of the novel multi-stage screening device provided by the utility model.

[0026] The markings in the figure are as follows:

[0027] 1. Device base; 2. Screening mechanism; 3. Feeding mechanism; 4. Support frame; 5. Fixed rod; 6. First threaded rod; 7. Mixing tank; 8. First connecting plate; 9. Second connecting plate; 10. Mounting frame; 11. First motor; 12. Driving sprocket; 13. Driven sprocket; 14. Fixed plate; 15. Second motor; 16. Mixing rod; 17. Solenoid valve; 18. Third motor; 19. Second threaded rod; 20. Internal thread block; 21. Box; 22. Brake wheel; 23. U-shaped frame; 24. Primary screen; 25. Connecting rod; 26. Secondary screen frame. DETAILED DESCRIPTION

[0028] In order to help those skilled in the art better understand the present invention, 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 should fall within the scope of protection of the present invention.

[0029] As described in the background technology, during the actual material preparation process of the device, since the electronic paste has a certain viscosity, it takes a certain amount of time for the electronic paste to pass through the first screening plate, which in turn requires workers to pour the electronic paste on the first screening plate multiple times in a quantitative manner, which is time-consuming and labor-intensive, and reduces production efficiency.

[0030] In order to solve this technical problem, the utility model provides a novel multi-stage screening device, which is applied to the production of electronic slurry.

[0031] Specifically, please refer to Figure 1-Figure 2 , the new multi-stage screening device specifically includes:

[0032] The device base 1 is provided with a screening mechanism 2 and a feeding mechanism 3;

[0033] The feeding mechanism 3 includes a stirring tank 7, a first connecting plate 8, a second connecting plate 9, a driving assembly, a lifting assembly, and a stirring assembly. The outer wall of the stirring tank 7 is fixedly connected to two first connecting plates 8, and the outer wall of the stirring tank 7 is fixedly connected to two second connecting plates 9.

[0034] The novel multi-stage screening device provided by the present invention can control the first motor 11 to make the stirring tank 7 drop to the lowest point, and then the operator can pour a relatively large amount of electronic slurry into the stirring tank 7 at one time, and then control the second motor 15 to drive the stirring rod 16 to rotate to stir the electronic slurry evenly, and then control the first motor 11 to drive the stirring tank 7 to rise to a suitable position, and then control the third motor 18 to move the box 21 to the bottom of the stirring tank 7, and then control the solenoid valve 17 to switch, so that the electronic slurry in the stirring tank 7 is quantitatively put onto the first-level screen 24 for screening. Lowering the stirring tank 7 to the lowest point for loading can make the operator not have to lift the material barrel to a higher position when loading, saving the operator's physical exertion. At the same time, more slurry can be added at one time, reducing the frequency of loading and improving the overall production efficiency of the electronic slurry. The second motor 15 can stir the input electronic slurry, which can reduce the aggregation of particles inside the electronic slurry and improve the dispersion of particles, reduce the blockage of the first-level screen 24 and the second-level screen frame 26 due to particle aggregation, reduce the frequency of subsequent maintenance of the device, and improve the practicality of the device.

[0035] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] Example 1:

[0037] Please refer to Figure 2-Figure 4 , a novel multi-stage screening device, comprising:

[0038] The driving assembly includes a support frame 4, and the support frames 4 are fixedly connected to the top of the device base 1 and near the front and rear sides respectively. The inner walls of the two support frames 4 are rotatably connected to the first threaded rods 6, and the two first threaded rods 6 are rotatably connected to the top of the device base 1. The top of one of the support frames 4 is fixedly connected to the mounting frame 10, and the top of the mounting frame 10 is fixedly installed with a first motor 11. The top of a first threaded rod 6 near the mounting frame 10 is fixedly connected to the output end of the first motor 11, the outer wall of a first threaded rod 6 near the mounting frame 10 is fixedly connected to a driving sprocket 12, and the outer wall of the other first threaded rod 6 is fixedly connected to a driven sprocket 13. The driving sprocket 12 and the driven sprocket 13 are connected by a chain transmission. The two first threaded rods 6 rotate in the same direction and at the same speed under the action of the driving sprocket 12, the driven sprocket 13 and the chain.

[0039] The lifting assembly includes a fixed rod 5, the inner walls of the two support frames 4 are respectively fixedly connected with the fixed rods 5, the bottom ends of the two fixed rods 5 are fixedly connected to the top of the device base 1, the first connecting plate 8 is slidably connected to the outer wall of the fixed rod 5, and the second connecting plate 9 is threadedly connected to the outer wall of the first threaded rod 6.

[0040] The stirring assembly includes a fixed plate 14, the top of the stirring tank 7 is fixedly connected to the fixed plate 14, the top of the fixed plate 14 is fixedly installed with a second motor 15, the output end of the second motor 15 is fixedly connected to a stirring rod 16, the stirring rod 16 is rotatably connected to the inner wall of the fixed plate 14, and the inner wall of the stirring tank 7 is fixedly installed with a solenoid valve 17. The solenoid valve 17 is purchased on the market, and technicians in this industry only need to install and operate it according to the accompanying instruction manual without the need for technical personnel in this field to pay creative labor. In addition, a control device for controlling the switch of the solenoid valve 17 is provided in the device. By stirring the electronic slurry, the aggregation of particulate matter in the electronic slurry can be reduced, thereby reducing the subsequent blockage of the first-level screen 24 and the second-level screen frame 26 due to the aggregation of particulate matter.

[0041] Through the above-mentioned structural design, by controlling the first motor 11, the corresponding first threaded rod 6 can be driven to rotate accordingly, thereby causing the active sprocket 12 to rotate accordingly, and the driven sprocket 13 can be driven to rotate through the chain, thereby causing the other stirring rod 16 to rotate accordingly. The rotation of the two stirring rods 16 is coordinated with the two second connecting plates 9, and the two fixed rods 5 and the first connecting plate 8 drive the stirring tank 7 to rise and fall accordingly. By controlling the first motor 11, the stirring tank 7 is lowered to the lowest point, and then the operator can pour a relatively large amount of electronic slurry into the stirring tank 7 at one time, and then the second motor 15 can be controlled to drive the stirring rod 16 to rotate to stir the electronic slurry evenly, and then the first motor 11 can be controlled to drive the stirring tank 7 to rise to a suitable position, and then the third motor 18 can be controlled to move the box 21 to the bottom of the stirring tank 7, and then the solenoid valve 17 switch is controlled so that the electronic slurry in the stirring tank 7 is quantitatively put onto the first-level screen 24 for screening.

[0042] Example 2:

[0043] The novel multi-stage screening device provided in Example 1 is further optimized, specifically, as Figure 5 As shown, the screening mechanism 2 includes a box body 21, a brake wheel 22, a moving component, and a screening component. Brake wheels 22 are fixedly installed at the bottom of the box body 21 and near the four corners. The four brake wheels 22 are all rollingly connected to the top of the device base 1. The brake wheels 22 can enable the box body 21 to move more smoothly on the device base 1. A pipe for the internal electronic slurry to flow out can be provided on the box body 21, and a valve for controlling the outflow of the electronic slurry is provided on the pipe.

[0044] The moving component includes a third motor 18, the outer wall of the device base 1 is fixedly mounted with the third motor 18, the inner wall of the device base 1 is rotatably connected to a second threaded rod 19, the second threaded rod 19 is fixedly connected to the output end of the third motor 18, the inner wall of the device base 1 is slidably connected to an internal thread block 20, the second threaded rod 19 is threadedly connected to the inner wall of the internal thread block 20, the third motor 18 is a stepping motor, and can achieve forward and reverse rotation by controlling the sequence of signals.

[0045] The screening component includes a U-shaped frame 23, the outer wall of the box 21 is tightly attached to the U-shaped frame 23, the inner wall of the U-shaped frame 23 is fixedly connected to a primary screen 24, the bottom of the U-shaped frame 23 and near the four corners are fixedly connected with connecting rods 25, and the bottom end of the connecting rod 25 is fixedly connected to a secondary screen frame 26. The primary screen 24 is clamped on the U-shaped frame 23, and the connecting rod 25 and the secondary screen frame 26 are installed on the box 21. After the electronic slurry is screened later, the U-shaped frame 23, the primary screen 24, the connecting rod 25 and the secondary screen frame 26 can be directly removed, and then maintenance or cleaning can be carried out. This operation is relatively simple, which improves the convenience of subsequent maintenance of the device.

[0046] Through the above structural design, by controlling the third motor 18, the second threaded rod 19 can be driven to rotate accordingly, so that the internal thread block 20 is restricted by the device base 1 and moves within the device base 1, thereby causing the box 21 to move accordingly. During the movement of the box 21, the wheels on the brake wheel 22 roll on the device base 1. After a proper amount of slurry is stored in the mixing tank 7, the box 21 can be controlled to move to the bottom of the mixing tank 7, and then the solenoid valve 17 can be controlled to make the electronic slurry in the mixing tank 7 drop to the primary screen 24, and then the electronic slurry can be controlled to move to the bottom of the mixing tank 7. The third motor 18 drives the second threaded rod 19 to rotate alternately forward and reverse, so that the box 21 moves back and forth under the stirring tank 7, so that the electronic slurry falls evenly on the primary screen 24, and then the electronic slurry is initially screened by the primary screen 24 and falls onto the secondary screen frame 26 for secondary screening. Finally, the electronic slurry is screened by the secondary screen frame 26 and falls into the box 21 to be collected. After the electronic slurry screening is completed, the U-shaped frame 23, the primary screen 24, the connecting rod 25 and the secondary screen frame 26 can be removed, and the electronic slurry in the box 21 can be collected.

Claims

1. A novel multi-stage screening device, comprising a device base (1), characterized in that: A screening mechanism (2) is provided on the device base (1), and a feeding mechanism (3) is provided on the device base (1); The feeding mechanism (3) comprises a stirring tank (7), a first connecting plate (8), a second connecting plate (9), a driving assembly, a lifting assembly, and a stirring assembly. The outer wall of the stirring tank (7) is fixedly connected to two first connecting plates (8), and the outer wall of the stirring tank (7) is fixedly connected to two second connecting plates (9).

2. The novel multi-stage screening device according to claim 1, characterized in that: The driving assembly comprises a support frame (4), the top of the device base (1) and the support frames (4) are fixedly connected near the front and rear sides respectively, the inner walls of the two support frames (4) are rotatably connected to the first threaded rods (6), the two first threaded rods (6) are rotatably connected to the top of the device base (1), the top of one of the support frames (4) is fixedly connected to the mounting frame (10), the top of the mounting frame (10) is fixedly installed with a first motor (11), the top of one of the first threaded rods (6) near the mounting frame (10) is fixedly connected to the output end of the first motor (11), the outer wall of one of the first threaded rods (6) near the mounting frame (10) is fixedly connected to a driving sprocket (12), the outer wall of the other first threaded rod (6) is fixedly connected to a driven sprocket (13), and the driving sprocket (12) and the driven sprocket (13) are connected by a chain transmission.

3. The novel multi-stage screening device according to claim 2, characterized in that: The lifting assembly comprises a fixing rod (5), the inner walls of the two support frames (4) are respectively fixedly connected with the fixing rod (5), the bottom ends of the two fixing rods (5) are fixedly connected to the top of the device base (1), the first connecting plate (8) is slidably connected to the outer wall of the fixing rod (5), and the second connecting plate (9) is threadedly connected to the outer wall of the first threaded rod (6).

4. The novel multi-stage screening device according to claim 1, characterized in that: The stirring assembly comprises a fixed plate (14), the top of the stirring tank (7) is fixedly connected to the fixed plate (14), the top of the fixed plate (14) is fixedly mounted with a second motor (15), the output end of the second motor (15) is fixedly connected with a stirring rod (16), the stirring rod (16) is rotatably connected to the inner wall of the fixed plate (14), and the inner wall of the stirring tank (7) is fixedly mounted with a solenoid valve (17).

5. The novel multi-stage screening device according to claim 1, characterized in that: The screening mechanism (2) comprises a box body (21), a brake wheel (22), a moving assembly, and a screening assembly. Brake wheels (22) are fixedly installed at the bottom of the box body (21) and near the four corners. The four brake wheels (22) are all rollingly connected to the top of the device base (1).

6. The novel multi-stage screening device according to claim 5, characterized in that: The moving assembly includes a third motor (18), the outer wall of the device base (1) is fixedly mounted with the third motor (18), the inner wall of the device base (1) is rotatably connected to a second threaded rod (19), the second threaded rod (19) is fixedly connected to the output end of the third motor (18), the inner wall of the device base (1) is slidably connected to an internal threaded block (20), and the second threaded rod (19) is threadedly connected to the inner wall of the internal threaded block (20).

7. The novel multi-stage screening device according to claim 5, characterized in that: The screening assembly comprises a U-shaped frame (23), the outer wall of the box body (21) is in close contact with the U-shaped frame (23), the inner wall of the U-shaped frame (23) is fixedly connected with a primary screen (24), the bottom of the U-shaped frame (23) and near the four corners are fixedly connected with connecting rods (25), and the bottom end of the connecting rod (25) is fixedly connected with a secondary screen frame (26).

Images