Conductive silver paste filtering device

Abstract

The utility model discloses a conductive silver paste filtering device which comprises a lower filtering box body, a detachable upper box body is arranged on the upper side of the lower filtering box body, a filtering net is arranged in the lower filtering box body, an inner support and a transmission shaft are arranged in the middle in the filtering net, an upper scraping piece is arranged at one end of a first connecting frame, and a lower scraping piece is arranged at one end of a second connecting frame. The upper scraper and the lower scraper are arranged in the middle in the filter screen through the inner support, the transmission shaft, the first connecting frame and the second connecting frame, and one end of the transmission shaft is in transmission connection with the motor through the gear set, so that the transmission shaft is driven by the motor and the gear set to rotate at a constant speed; by means of the structure, materials can be flatly laid on the filter screen conveniently, meanwhile, blockage clearing treatment can be conducted on the upper portion of the filter screen, meanwhile, the lower portion of the filter screen can be scraped through the rotating lower scraping piece, filtered slurry can be scraped conveniently, the material passing rate can be increased easily, and blockage clearing can be conducted on the lower portion of the filter screen.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive silver paste filtration, in particular to a conductive silver paste filtration device. Background Art

[0002] With the continuous development of the electronic component manufacturing field, conductive silver paste, as an important material, is widely used in fields such as printed circuit boards and solar cells. However, during the preparation process of conductive silver paste, particles and impurities often exist, which may affect the conductivity and quality of the material. Before printing on the circuit, it is necessary to filter the conductive silver paste to avoid missed brushing during the printing process.

[0003] In the prior art, a conductive silver paste filtration device with the application number 202322365995.9 includes: a base, a filter cylinder fixedly connected to the outer surface of the base, a motor fixedly connected to the upper surface of the filter cylinder, a lead screw fixedly connected to the output end of the motor, a semi-circular threaded hole plate threadedly connected to the outer surface of the lead screw, a rotating plate rotatably connected to the outer surface of the semi-circular threaded hole plate, a first metal ring fixedly connected to the upper surface of the rotating plate, and a second metal ring slidably connected to the outer surface of the first metal ring. By setting the motor, lead screw, rotating shaft, stirring plate, scraping plate, semi-circular threaded hole plate, and rotating plate, while pressing down the material to accelerate the discharge, all the materials on the inner wall of the filter cylinder are scraped down, ensuring that all the materials flow out to avoid waste, and at the same time, using the power of the motor to scrape the surface of the filter screen to avoid blockage. By setting the rotating plate, feeding cylinder, first metal ring, second metal ring, and pull rod, while accelerating the discharge, it does not affect the feeding. However, it is not convenient to clean the outside of the filter screen, resulting in a poor cleaning and blockage removal effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a conductive silver paste filtration device to solve the problem in the prior art that it is not convenient to clean the outside of the filter screen, resulting in a poor cleaning and blockage removal effect.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a conductive silver paste filtration device, including a lower filtration box body, a detachable upper box body is arranged on the upper side of the lower filtration box body, a filter screen is arranged inside the lower filtration box body, an inner support is arranged in the middle of the filter screen, a transmission shaft is rotatably arranged in the middle of the inner support through a bearing, a first connecting frame and a second connecting frame are respectively arranged at both ends of the transmission shaft, an upper scraping blade is arranged at one end of the first connecting frame, a lower scraping blade is arranged at one end of the second connecting frame, and one end of the transmission shaft is drivingly connected to a motor through a gear set.

[0006] Further, the motor is a servo motor and is fixedly arranged on the inner wall of the inner support, and heat dissipation holes are arranged on the outer side of the lower end of the inner support.

[0007] Further, the gear set includes a driven gear disposed outside the transmission shaft, and one end of the motor is drivingly connected to a driving gear that meshes with the driven gear.

[0008] Further, a clamping seat is provided at the lower end of the upper box body, and the clamping seat is clamped on the upper part of the filtering lower box body.

[0009] Further, a fastening bolt is provided on the outer side wall of the clamping seat in a threaded manner, and a feed inlet is further provided on the upper side of the upper box body.

[0010] Further, two sets of upper scraping blades and lower scraping blades are symmetrically arranged about the axis of the transmission shaft, and the upper scraping blades and the lower scraping blades are arranged in parallel and closely attached to the outer wall of the filter screen.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the middle of the filter screen of the present utility model, upper scraping blades and lower scraping blades are provided through an inner support seat, a transmission shaft, a first connecting frame and a second connecting frame. One end of the transmission shaft is drivingly connected to a motor through a gear set, so that the transmission shaft is driven by the motor and the gear set to rotate at a constant speed. The rotating upper scraping blades scrape the upper part of the filter screen, which is convenient for spreading the material on the filter screen, and at the same time can perform clogging clearing treatment on the upper part of the filter screen. At the same time, the rotating lower scraping blades can scrape the lower part of the filter screen, which is convenient for scraping the filtered slurry, is beneficial to improving the passing rate of the material, and can also perform clogging clearing on the lower part of the filter screen, and the clogging clearing efficiency is relatively high.

[0013] 2. In the present utility model, a detachable upper box body is provided on the upper side of the filtering lower box body. A clamping seat is provided at the lower end of the upper box body, and the clamping seat is clamped on the upper part of the filtering lower box body. A fastening bolt is provided on the outer side wall of the clamping seat in a threaded manner, and a feed inlet is further provided on the upper side of the upper box body, which is convenient for disassembling and assembling the upper box body relative to the filtering lower box body, and thus is convenient for cleaning and maintenance of the inside of the filtering lower box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is the front view of the overall structure of the present utility model;

[0016] Figure 2 is the schematic structural view of the inner support seat of the present utility model;

[0017] Figure 3 is the schematic structural view of the filter screen of the present utility model.

[0018] In the figure: 1. Filter lower box body; 2. Upper box body; 3. Filter net; 4. Feed inlet; 5. Heat dissipation holes; 6. Inner support; 7. Transmission shaft; 8. Second connecting frame; 9. First connecting frame; 10. Upper scraping blade; 11. Driven gear; 12. Motor; 13. Driving gear; 14. Lower scraping blade; 15. Fastening bolt; 16. Clamping seat; 17. Through hole. Detailed implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figure 1 , Figure 2 , Figure 3 In the embodiment of the present invention, a conductive silver paste filtering device includes a filter lower box body 1. A detachable upper box body 2 is provided on the upper side of the filter lower box body 1. A feed inlet 4 is further provided on the upper side of the upper box body 2. A filter net 3 is provided inside the filter lower box body 1. A clamping seat 16 is provided at the lower end of the upper box body 2, and the clamping seat 16 is clamped on the upper part of the filter lower box body 1. A fastening bolt 15 is threadedly provided on the outer side wall of the clamping seat 16, so that it is convenient to disassemble and assemble the upper box body 2 relative to the filter lower box body 1, thereby facilitating the cleaning and maintenance of the inside of the filter lower box body 1.

[0021] As Figure 1 and Figure 2 shown, in order to facilitate the cleaning of the outside of the filter screen to improve the clogging removal effect, an inner support 6 is further provided in the through hole 17 in the middle of the filter net 3. A transmission shaft 7 is rotatably provided in the middle of the inner support 6 through a bearing. A first connecting frame 9 and a second connecting frame 8 are respectively provided at both ends of the transmission shaft 7. An upper scraping blade 10 is provided at one end of the first connecting frame 9, and a lower scraping blade 14 is provided at one end of the second connecting frame 8. One end of the transmission shaft 7 is drivingly connected to a motor 12 through a gear set. The gear set includes a driven gear 11 provided on the outer side of the transmission shaft 7, and one end of the motor 12 is drivingly connected to a driving gear 13 meshing with the driven gear 11. Two groups of upper scraping blades 10 and lower scraping blades 14 are symmetrically provided with respect to the transmission shaft 7, and the upper scraping blades 10 and the lower scraping blades 14 are arranged parallel and closely attached to the outer wall of the filter net 3. The motor 12 is a servo motor, and the motor 12 is fixedly provided on the inner wall of the inner support 6. Heat dissipation holes 5 are provided on the outer side of the lower end of the inner support 6, so that the transmission shaft 7 is driven to rotate at a constant speed by the motor 12 and the gear set, and the rotating scraping blades are used to scrape the upper and lower parts of the filter net 3, which is convenient for spreading the material on the filter net 3, and at the same time, the upper and lower parts of the filter net 3 can be unclogged, and the clogging removal effect is better.

[0022] The working principle and use process of the utility model are as follows: when in use, since an upper scraper 10 and a lower scraper 14 are provided in the middle part of the filter screen 3 through the inner support 6, the transmission shaft 7, the first connecting frame 8 and the second connecting frame 9, one end of the transmission shaft 7 is connected to the motor 12 through a gear set transmission, so that the transmission shaft 7 is driven by the motor 12 and the gear set to rotate at a constant speed, and the rotating upper scraper 10 is used to scrape the upper part of the filter screen, which is convenient for spreading the material on the filter screen 3, and at the same time, the upper part of the filter screen 3 can be cleared, and at the same time, the rotating lower scraper 14 can scrape the lower part of the filter screen 3, which is convenient for scraping the filtered slurry, which is beneficial to increase the rate at which the material passes, and at the same time, the lower part of the filter screen 3 can be cleared.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A conductive silver paste filtering device, comprising a lower filtering box body (1), characterized in that: A detachable upper box body (2) is provided on the upper side of the filtering lower box body (1). A filter net (3) is arranged inside the filtering lower box body (1). An inner support (6) is arranged in the middle of the filter net (3). A transmission shaft (7) is rotatably arranged in the middle of the inner support (6) through a bearing. First connecting frames (9) and second connecting frames (8) are respectively arranged at both ends of the transmission shaft (7). An upper scraping blade (10) is arranged at one end of the first connecting frame (9). A lower scraping blade (14) is arranged at one end of the second connecting frame (8). One end of the transmission shaft (7) is in transmission connection with a motor (12) through a gear set.

2. The conductive silver paste filtering device according to claim 1, characterized in that: The motor (12) is a servo motor, and the motor (12) is fixedly arranged on the inner wall of the inner support (6).

3. The conductive silver paste filtering device according to claim 2, characterized in that: The gear set includes a driven gear (11) arranged on the outer side of the transmission shaft (7), and one end of the motor (12) is in transmission connection with a driving gear (13) meshing with the driven gear (11).

4. A conductive silver paste filtering device according to claim 1, characterized in that: A clamping seat (16) is arranged at the lower end of the upper box body (2), and the clamping seat (16) is clamped on the upper part of the filtering lower box body (1).

5. A conductive silver paste filtering device according to claim 4, characterized in that: A fastening bolt (15) is threadedly arranged on the outer side wall of the clamping seat (16), and a feed inlet (4) is further arranged on the upper side of the upper box body (2).

6. The conductive silver paste filtering device according to claim 1, characterized in that: Two groups of the upper scraping blades (10) and the lower scraping blades (14) are symmetrically arranged with respect to the transmission shaft (7), and the upper scraping blades (10) and the lower scraping blades (14) are arranged parallel and closely attached to the outer wall of the filter net (3).

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