Silver powder filtering and screening device

Abstract

The utility model discloses a silver powder filtering and screening device which comprises a U-shaped base, the bottom of the U-shaped base is hollow, a motor is horizontally arranged at the bottom of the U-shaped base, and one end of a rotating shaft of the motor is rotationally connected to one side of the U-shaped base through a bearing; the filtering and collecting mechanism is arranged in the U-shaped base in a sliding manner; a cam mechanism is fixedly installed on a rotating shaft of the motor and abuts against the bottom of the filtering and collecting mechanism. The multi-stage silver powder filtering device has the advantages that the filtering and collecting mechanism abuts against the cam mechanism, the cam mechanism rotates to drive the multiple filtering discs to move up and down so as to achieve multi-stage filtering of silver powder, and therefore the filtering efficiency of the silver powder with different particle sizes can be improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of equipment for silver powder manufacturing, and specifically relates to a silver powder filtration and sieving device. Background Technology

[0002] Silver is a precious metal widely used in the electronics industry, and silver powder is the powdered form of silver, widely used in the manufacture of conductive plastics, conductive coatings, and conductive adhesives. A common preparation method is the chemical reduction of silver nitrate to obtain silver powder that meets the target parameters. Different silver conductor pastes have different requirements for the diameter of the silver powder particles, and these characteristics are closely related to the electrical properties of the silver paste.

[0003] Because different applications require different particle diameters for silver powder, it is necessary to grade and screen the silver powder. Traditional screening devices often suffer from reduced screening efficiency due to silver powder particles clogging the screens, affecting the subsequent use of the silver powder. For example, application number CN217887223U discloses a multi-stage filtration device for preparing silver powder using silver nitrate solution. This device mainly uses multiple filter discs to filter and screen the silver powder, but when the silver powder particle size is large, the silver powder easily clogs the filter discs. Utility Model Content

[0004] One object of this invention is to solve at least the aforementioned problems and / or defects, and to provide at least the advantages described below.

[0005] To achieve these objectives and other advantages according to the present invention, a silver powder filtration and sieving device is provided, comprising:

[0006] The U-shaped base has a hollow bottom and a motor is horizontally mounted thereon. One end of the motor shaft is rotatably connected to one side of the U-shaped base through a bearing.

[0007] The filter collection mechanism is slidably disposed between the U-shaped bases;

[0008] A cam mechanism is fixedly installed on the shaft of the motor, and the cam mechanism abuts against the bottom of the filter collection mechanism.

[0009] Preferably, a controller connected to the motor is provided on one side of the U-shaped base.

[0010] Preferably, the U-shaped base has handles on both sides, and four corner brackets are fixedly installed on the outer periphery of the U-shaped base.

[0011] Preferably, the filtration and collection mechanism includes a collection tray and multiple stacked filter trays, wherein the collection tray is disposed at the bottom of the multiple filter trays, and:

[0012] The bottom of the collection tray is equipped with a U-shaped roller that rotates horizontally via a bearing, and the U-shaped roller abuts against the cam mechanism.

[0013] Preferably, the filter collection mechanism is slidably mounted on the upper end of the U-shaped base in the following manner:

[0014] The U-shaped base has opposing sliding grooves on both sides, the diameter of which is smaller than the width of the groove, and the collection plate and filter plate have sliding ends extending into the grooves on both sides of their circumference.

[0015] Preferably, a buffer device is provided at the bottom of the slide, the buffer device comprising a spring and a slider, wherein:

[0016] The slider matches the groove, one end of the spring is fixedly connected to the bottom of the groove, the other end of the spring is fixedly connected to the bottom of the slider, and the top of the slider abuts against the sliding end on the filter disc.

[0017] This utility model has at least the following beneficial effects: by setting a filter collection mechanism and a cam mechanism to abut each other, the rotation of the cam mechanism drives multiple filter discs to move up and down to achieve multi-stage filtration of silver powder, thereby improving the filtration efficiency of silver powder of different particle sizes.

[0018] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. Attached Figure Description

[0019] Figure 1 This is a silver powder filtration and sieving device;

[0020] Figure 2 This is a cross-sectional view of the device;

[0021] Figure 3 This is a bottom view of the device;

[0022] Figure 4 This is a diagram of the internal structure of the device;

[0023] Figure 5 Diagram of the filter collection mechanism;

[0024] Figure 6 For filter discs;

[0025] Figure 7 For collecting disks.

[0026] The markings in the diagram are: 1. U-shaped base, 2. Motor, 3. Cam mechanism, 20. Controller, 30. Handle end, 31. Four-corner bracket, 40. Collection tray, 41. Filter tray, 42. U-shaped roller, 50. Slide groove, 51. Sliding end, 61. Spring, 62. Slider. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0028] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that in the description of this utility model, the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "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.

[0031] Furthermore, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] like Figures 1 to 7 As shown, a silver powder filtration and sieving device includes:

[0033] A U-shaped base 1 has a hollow bottom and a motor 2 is horizontally mounted thereon. One end of the motor 2's shaft is rotatably connected to one side of the U-shaped base 1 via a bearing.

[0034] The filter collection mechanism is slidably disposed between the U-shaped base 1;

[0035] A cam mechanism 3 is fixedly installed on the shaft of the motor 2, and the cam mechanism 3 abuts against the bottom of the filter collection mechanism.

[0036] Working principle:

[0037] When silver powder needs to be filtered and sieved, the operator can place the silver powder in the filter collection mechanism and start the motor 2 located at the lower end of the U-shaped base 1, thereby driving the cam mechanism 3 to rotate. At this time, the cam end, the transition ends on both sides and the base circle end of the cam successively abut against the lower end of the filter collection mechanism and roll at the same time. During the rotation of the cam mechanism 3, the filter collection mechanism always slides up and down between the U-shaped base 1, thereby driving the silver powder to move up and down to filter and sieve the silver powder. The continuous up and down vibration reduces the probability of the filter holes in the filter collection device being blocked by silver powder. At the same time, it can crush the agglomerated silver powder through up and down vibration, thereby increasing the efficiency of silver powder filtration.

[0038] In the above technical solution, a controller 20 connected to the motor 2 is provided on one side of the U-shaped base 1.

[0039] With the above settings, the operator can control the speed of the motor 2 and the cam through the controller 20, thereby changing the extension force applied by the cam to the filter collector, thus ensuring the silver powder filtration efficiency.

[0040] In the above technical solution, handle ends 30 are provided on both sides of the U-shaped base 1, and four corner brackets 31 are fixedly installed on the outer periphery of the U-shaped base 1.

[0041] With the above-mentioned design, the handle end 30 facilitates the operator's movement of the device, and the four corner brackets 31 ensure the stability of the device during use.

[0042] In the above technical solution, the filtration and collection mechanism includes a collection tray 40 and multiple stacked filter trays 41, wherein the collection tray 40 is disposed at the bottom of the multiple filter trays 41, and:

[0043] The bottom of the collection tray 40 is equipped with a U-shaped roller 42 that rotates horizontally via a bearing, and the U-shaped roller 42 abuts against the cam mechanism 3.

[0044] With the above setup, the operator can use multiple stacked filter discs 41 to sieve silver powder of different particle sizes. Simultaneously, the collection disc 40 collects the final filtered silver powder. The U-shaped roller 42 reduces the friction between the cam mechanism 3 and the collection disc 40 during rotation, allowing the cam mechanism 3 to smoothly drive the filter and collection mechanism up and down. This prevents the silver powder in the filter discs 41 and collection disc 40 from scattering due to vertical movement, and also ensures the stability of the device structure.

[0045] Meanwhile, the filter disc 41 can be modified according to the specific silver powder filtration requirements, such as changing the number of layers of the filter disc 41 or selecting multiple filter discs 41 with different pore sizes.

[0046] In the above technical solution, the filtering and collecting mechanism is slidably mounted on the upper end of the U-shaped base 1 as follows:

[0047] The U-shaped base 1 has opposing sliding grooves 50 on both sides. The diameter of the sliding groove 50 is smaller than the width of the sliding groove 50. The collection plate 40 and the filter plate 41 have sliding ends 51 extending into the sliding groove 50 on both sides of their circumference.

[0048] With the above settings, the collection plate 40 and the filter plate 41 can slide on the groove 50 on the U-shaped base 1 through the sliding end 51, which ensures that the collection plate 40 and the filter plate 41 can slide up and down stably on the U-shaped base 1, and at the same time ensures the stability of the silver powder in the collection plate 40 and the filter plate 41.

[0049] In the above technical solution, a buffer device is provided at the bottom of the slide 50, the buffer device including a spring 61 and a slider 62, wherein:

[0050] The slider 62 is matched with the slide groove 50. One end of the spring 61 is fixedly connected to the bottom of the slide groove 50, and the other end of the spring 61 is fixedly connected to the bottom of the slider 62. The top of the slider 62 abuts against the sliding end 51 on the filter disc 41.

[0051] The above settings limit the diameter of the chute 50, ensuring that the slider 62 on the buffer device remains within the chute 50. This guarantees that when the filter collection mechanism slides downwards, the sliding end 51 on the filter disc 40 drives the slider 62 down while simultaneously squeezing the spring 61. At this time, the filter collection mechanism is subjected to a counterforce from the spring 61, thereby reducing the impact on the bottom of the chute 50 and ensuring the overall stability of the device structure. It also reduces the vibration of silver powder within the filter disc 41 and the collection disc 40.

[0052] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A silver powder filtration and sieving device, comprising: The U-shaped base has a hollow bottom and a motor is horizontally mounted thereon. One end of the motor shaft is rotatably connected to one side of the U-shaped base through a bearing. The filter collection mechanism, which is slidably disposed between the U-shaped bases, is characterized in that: A cam mechanism is fixedly installed on the shaft of the motor, and the cam mechanism abuts against the bottom of the filter collection mechanism.

2. The silver powder filtering and sieving device according to claim 1, characterized in that, A controller connected to the motor is installed on one side of the U-shaped base.

3. The silver powder filtering and sieving device according to claim 1, characterized in that, The U-shaped base has handles on both sides, and four corner brackets are fixedly installed on the outer periphery of the U-shaped base.

4. The silver powder filtering and sieving device according to claim 1, characterized in that, The filtration and collection mechanism includes a collection tray and multiple stacked filter trays, wherein the collection tray is located at the bottom of the multiple filter trays, and: The bottom of the collection tray is equipped with a U-shaped roller that rotates horizontally via a bearing, and the U-shaped roller abuts against the cam mechanism.

5. The silver powder filtering and sieving device according to claim 4, characterized in that, The filtering and collecting mechanism is slidably mounted on the upper end of the U-shaped base as follows: The U-shaped base has opposing sliding grooves on both sides, the diameter of which is smaller than the width of the groove, and the collection plate and filter plate have sliding ends extending into the grooves on both sides of their circumference.

6. The silver powder filtering and sieving device according to claim 5, characterized in that, A buffer device is provided at the bottom of the chute, the buffer device including a spring and a slider, wherein: The slider matches the groove, one end of the spring is fixedly connected to the bottom of the groove, the other end of the spring is fixedly connected to the bottom of the slider, and the top of the slider abuts against the sliding end on the filter disc.

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