A multi-stage screening mechanism for silver powder production

Abstract

The utility model is applicable to the technical field of screening mechanisms, and provides a multi-stage screening mechanism for silver powder production, including a collecting box, a first screening box, a second screening box and a third screening box are arranged on the top of the collecting box, and the first screening box, the second screening box and the third screening box are stacked on each other in a bottom-up order; a plurality of screens, the plurality of screens are respectively arranged at the bottom of the first screening box, the second screening box and the third screening box, and the mesh fineness of the plurality of screens is inconsistent; a cover plate, the cover plate is placed on the top of the third screening box. The multi-stage screening mechanism for silver powder production provided by this scheme has high flexibility, can be disassembled and assembled according to actual needs, can receive and store silver powders of different finenesses, and can stir the silver powder to ensure the screening effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of sieving mechanisms, in particular to a multi-stage sieving mechanism for silver powder production. Background Art

[0002] Silver powder is a kind of precious metal powder widely used in the electronics industry and is one of the important materials for basic theoretical research.

[0003] However, the existing screening device has a high degree of integrity. Although the silver powder can be screened step by step during use, it is not convenient to fully clean the screening component located in the middle of the device, and it is also not convenient to maintain and replace the screening component. For example, the patent document with authorization announcement number CN218691435U has this problem. Utility Model Content

[0004] The utility model provides a multi-stage screening mechanism for silver powder production, aiming to solve the problem that the existing screening device proposed in the above background technology has high integrity and can screen the silver powder step by step during use, but it is not convenient to fully clean the screening parts located in the middle of the device.

[0005] To solve the above problems, the utility model is implemented as follows: a multi-stage screening mechanism for silver powder production, comprising: a collecting box, a first screening box, a second screening box and a third screening box are arranged on the top of the collecting box, and the first screening box, the second screening box and the third screening box are stacked on each other in a bottom-up order; a plurality of screens, the plurality of screens are respectively arranged at the bottom of the first screening box, the second screening box and the third screening box, and the mesh fineness of the plurality of screens is inconsistent; a cover plate, the cover plate is placed on the top of the third screening box; a plurality of handles, the plurality of handles are respectively installed on the collecting box, the first screening box, the second screening box, the third screening box and the cover plate; a material turning component, the material turning component is arranged on the first screening box, the second screening box, the third screening box and the cover plate The material turning assembly is used for evenly flattening the silver powder on the first screening box and the third screening box. The material turning assembly includes multiple rotating shafts, multiple limiting cylinders, two limiting blocks and a motor. The multiple rotating shafts are rotatably mounted on the first screening box, the second screening box and the third screening box respectively. Multiple stirring blades are installed on the multiple rotating shafts. The multiple limiting cylinders are fixedly mounted on the tops of the multiple rotating shafts respectively. The two limiting blocks are respectively mounted on the bottoms of the two rotating shafts located on the second screening box and the third screening box. The two limiting blocks can be divided and extended into any two limiting cylinders. The motor is fixedly mounted on the bottom of the first screening box. The output shaft of the motor is fixedly connected to the rotating shaft, and a protective shell is provided on the outer fixed sleeve of the motor.

[0006] Preferably, the bottoms of the first screening box, the second screening box and the third screening box are all provided with bayonet joints, and the tops of the collecting box, the first screening box, the second screening box and the third screening box are all provided with limiting grooves, and the multiple bayonet joints can be respectively clamped in the multiple limiting grooves, and the multiple limiting grooves are all installed with silicone rings.

[0007] Preferably, the collecting box, the first screening box, the second screening box and the third screening box are all provided with observation windows, a plurality of universal wheels are installed at the bottom of the collecting box, and a self-locking structure is provided on the plurality of universal wheels.

[0008] Preferably, a dust suction pipe is installed on one side of the third screening box, a filter box is fixedly installed on the dust suction pipe, a fan is provided on one side of the filter box, a mounting frame is fixed on the fan, and the air inlet end of the fan is threadedly connected to the filter box.

[0009] Preferably, brush pads are installed at the bottom of the plurality of stirring blades, and the plurality of brush pads are in contact with the plurality of screens respectively, and the plurality of screens are all made of metal.

[0010] Preferably, a support plate is detachably mounted on one side of the filter box, a filter bag is mounted on the support plate, the filter bag is located inside the filter box, and the collecting box, the first screening box, the second screening box and the third screening box are all made of plastic.

[0011] Compared with the related art, the multi-stage screening mechanism for silver powder production provided by the utility model has the following advantages:

[0012] Beneficial effects:

[0013] Compared with the prior art, the multi-stage screening mechanism for silver powder production provided in the present invention can perform multi-stage screening on silver powder by setting up a first screening box, a second screening box and a third screening box. At the same time, it is convenient to split the first screening box, the second screening box and the third screening box for subsequent cleaning. Directly splitting the first screening box, the second screening box and the third screening box can also directly separate silver powders of different finenesses. The screening box can also be used as a silver powder container. By setting up a motor, a rotating shaft and a stirring blade, the silver powder can be turned over to ensure the screening effect. By setting up a fan, the dust generated by the screening can be processed to ensure the cleanliness of the environment when the first screening box, the second screening box and the third screening box are split. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main cross-sectional structure of a multi-stage screening mechanism for silver powder production provided by the utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the limiting cylinder and the limiting block in the utility model;

[0016] Figure 3 for Figure 1 An enlarged structural diagram of part A shown in FIG.

[0017] Figure 4 for Figure 1 Schematic diagram of the enlarged structure of part B shown in FIG.

[0018] Figure numerals: 1. collecting box; 2. first screening box; 3. second screening box; 4. third screening box; 5. screen; 6. limiting groove; 7. bayonet; 8. rotating shaft; 9. limiting cylinder; 10. limiting block; 11. motor; 12. protective shell; 13. observation window; 14. universal wheel; 15. cover plate; 16. handle; 17. stirring blade; 18. silicone ring; 19. dust suction tube; 20. filter box; 21. fan; 22. mounting frame. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The utility model embodiment provides a multi-stage screening mechanism for silver powder production, such as Figure 1-4As shown, the multi-stage screening mechanism for silver powder production includes: a collecting box 1, a first screening box 2, a second screening box 3 and a third screening box 4 are arranged on the top of the collecting box 1, and the first screening box 2, the second screening box 3 and the third screening box 4 are stacked on each other in a bottom-up order; a plurality of screens 5, the plurality of screens 5 are respectively arranged on the bottom of the first screening box 2, the second screening box 3 and the third screening box 4, and the mesh fineness of the plurality of screens 5 is inconsistent; a cover plate 15, the cover plate 15 is placed on the top of the third screening box 4; a plurality of handles 16, the plurality of handles 16 are respectively installed on the collecting box 1, the first screening box 2, the second screening box 3, the third screening box 4 and the cover plate 15; a material turning assembly, the material turning assembly is arranged on the first screening box 2, the second screening box 3 and the third screening box 4, The material turning assembly is used to evenly flatten the silver powder. The material turning assembly includes multiple rotating shafts 8, multiple limiting cylinders 9, two limiting blocks 10 and a motor 11. The multiple rotating shafts 8 are respectively rotatably installed on the first screening box 2, the second screening box 3 and the third screening box 4. Multiple stirring blades 17 are installed on the multiple rotating shafts 8. The multiple limiting cylinders 9 are respectively fixedly installed on the tops of the multiple rotating shafts 8. The two limiting blocks 10 are respectively installed on the bottoms of the two rotating shafts 8 located on the second screening box 3 and the third screening box 4. The two limiting blocks 10 can be divided and extended into any two limiting cylinders 9. The motor 11 is fixedly installed at the bottom of the first screening box 2. The output shaft of the motor 11 is fixedly connected to the rotating shaft 8. The outer fixed sleeve of the motor 11 is provided with a protective shell 12.

[0022] In this embodiment, the collecting box 1 serves as the basis of the entire mechanism, carrying the first screening box 2, the second screening box 3 and the third screening box 4 above. These screening boxes are stacked on each other in a bottom-up order to form a compact overall structure, and cooperate with the screen 5 with inconsistent mesh fineness to screen the silver powder at different levels. The design of the handle 16 allows the user to easily lift and move the various components, thereby facilitating cleaning and maintenance work. The function of the turning component is to evenly spread the silver powder to ensure that each grain of silver powder can be fully screened. Through the arrangement of multiple rotating shafts 8 and stirring blades 17, the silver powder can be evenly spread and turned over, thereby improving the screening efficiency and screening quality. The design of the limit cylinder 9 and the limit block 10 can connect multiple rotating shafts 8 together to ensure the stability of the multiple rotating shafts 8 during rotation. The motor 11 serves as a power source and provides a stable and reliable power output for the turning component, ensuring the smooth turning operation.

[0023] In a further preferred embodiment of the utility model, the bottoms of the first screening box 2, the second screening box 3 and the third screening box 4 are each provided with a bayonet 7, the tops of the collecting box 1, the first screening box 2, the second screening box 3 and the third screening box 4 are each provided with a limiting groove 6, and a plurality of the bayonet 7 can be respectively clamped in a plurality of the limiting grooves 6, and a silicone ring 18 is installed on the plurality of the limiting grooves 6.

[0024] In this embodiment, the bayonet 7 is clamped in the limit groove 6 to achieve quick connection between the screening boxes. This connection method is not only simple and easy to operate, but also can effectively ensure the stability and tightness between the screening boxes, preventing shaking or misalignment during the screening process. The silicone ring 18 has good elasticity and sealing performance, and can effectively fill the tiny gaps between the screening boxes to prevent silver powder from leaking out of the gaps during the screening process, and at the same time can reduce the noise generated when the device is stacked and assembled.

[0025] In a further preferred embodiment of the utility model, the collecting box 1, the first screening box 2, the second screening box 3 and the third screening box 4 are all provided with an observation window 13, and a plurality of universal wheels 14 are installed at the bottom of the collecting box 1, and a self-locking structure is provided on the plurality of universal wheels 14.

[0026] In this embodiment, the observation window 13 allows the user to intuitively see the situation during the screening process without opening the device, thereby conveniently monitoring the screening progress and effect, which not only improves work efficiency but also reduces the difficulty of operation. The universal wheel 14 allows the entire device to be easily moved, and the self-locking structure can lock the universal wheel 14 when necessary to prevent the equipment from sliding or moving on its own when it does not need to move. This increases the stability of the equipment during use and prevents screening interruptions or reduced screening effects due to equipment movement.

[0027] In a further preferred embodiment of the utility model, a dust suction pipe 19 is installed on one side of the third screening box 4, a filter box 20 is fixedly installed on the dust suction pipe 19, a fan 21 is provided on one side of the filter box 20, a mounting frame 22 is fixed on the fan 21, and the air inlet end of the fan 21 is threadedly connected to the filter box 20.

[0028] In this embodiment, dust suction and filtering are used to effectively reduce the dust generated during the screening process, thereby improving the working environment and protecting the health of the staff. Secondly, the reduction of dust also reduces the risk of equipment failure due to dust accumulation, thereby improving the stability and reliability of the equipment. Finally, the fan 21 and the filter box 20 are threadedly connected, making the maintenance and cleaning of the equipment more convenient and improving the usability of the equipment.

[0029] In a further preferred embodiment of the present invention, brush pads are installed at the bottom of the plurality of stirring blades 17, and the plurality of brush pads are in contact with the plurality of screens 5 respectively, and the plurality of screens 5 are all made of metal.

[0030] In this embodiment, the brush pad enables the stirring blade 17 to effectively clean the residue and blockage on the screen 5 during the turning process, thereby ensuring the patency and screening effect of the screen 5. The screen 5 is made of metal. Compared with other materials, the metal screen 5 has higher strength and wear resistance, and can better withstand the impact and friction during the screening process. At the same time, the metal screen 5 is also easier to clean and maintain, thereby extending its service life.

[0031] In a further preferred embodiment of the utility model, a support plate is detachably installed on one side of the filter box 20, a filter bag is installed on the support plate, the filter bag is located in the filter box 20, and the collecting box 1, the first screening box 2, the second screening box 3 and the third screening box 4 are all made of plastic.

[0032] In this embodiment, the support plate can be easily installed and disassembled, so that it is convenient to replace the filter bag or clean the inside of the filter box 20. The filter bag is used to further filter the dust sucked in from the dust suction pipe 19 to ensure that the exhausted air is cleaner. The plastic material has the advantages of being lightweight, corrosion-resistant, and easy to process, making the entire device lighter and more durable.

[0033] To sum up, compared with the related art, the present device can perform multi-stage screening of silver powder by setting the first screening box 2, the second screening box 3 and the third screening box 4. At the same time, it is convenient to disassemble the first screening box 2, the second screening box 3 and the third screening box 4 for subsequent cleaning. Directly disassembling the first screening box 2, the second screening box 3 and the third screening box 4 can also directly separate silver powders of different finenesses. The screening box can also be used as a silver powder container. By setting the motor 11, the rotating shaft 8 and the stirring blade 17, the silver powder can be stirred to ensure the screening effect. By setting the fan 21, the dust generated by the screening can be processed to ensure the cleanliness of the environment when the first screening box 2, the second screening box 3 and the third screening box 4 are disassembled.

[0034] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0035] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A multi-stage screening mechanism for silver powder production, characterized in that: include: A collecting box, wherein a first screening box, a second screening box and a third screening box are arranged on the top of the collecting box, and the first screening box, the second screening box and the third screening box are stacked on each other in a bottom-up order; A plurality of screens, wherein the plurality of screens are respectively arranged at the bottom of the first screening box, the second screening box and the third screening box, and the mesh fineness of the plurality of screens is inconsistent; a cover plate, the cover plate being placed on the top of the third screening box; A plurality of handles, wherein the plurality of handles are respectively mounted on the collecting box, the first screening box, the second screening box, the third screening box and the cover plate; A material turning assembly, wherein the material turning assembly is arranged on the first screening box, the second screening box and the third screening box, and the material turning assembly is used to evenly spread the silver powder. The material turning assembly comprises multiple rotating shafts, multiple limiting cylinders, two limiting blocks and a motor. The multiple rotating shafts are respectively rotatably mounted on the first screening box, the second screening box and the third screening box, and multiple stirring blades are installed on the multiple rotating shafts. The multiple limiting cylinders are respectively fixedly mounted on the tops of the multiple rotating shafts, and the two limiting blocks are respectively mounted on the bottoms of the two rotating shafts located on the second screening box and the third screening box, and the two limiting blocks can be divided and extended into any two limiting cylinders. The motor is fixedly mounted on the bottom of the first screening box, and the output shaft of the motor is fixedly connected to the rotating shaft, and a protective shell is provided on the outer fixed sleeve of the motor.

2. The multi-stage screening mechanism for silver powder production according to claim 1, characterized in that: The bottoms of the first screening box, the second screening box and the third screening box are all provided with bayonet holes, and the tops of the collecting box, the first screening box, the second screening box and the third screening box are all provided with limiting grooves, and the multiple bayonet holes can be respectively clamped in the multiple limiting grooves, and the multiple limiting grooves are all installed with silicone rings.

3. The multi-stage screening mechanism for silver powder production according to claim 1, characterized in that: The collecting box, the first screening box, the second screening box and the third screening box are all provided with observation windows, a plurality of universal wheels are installed at the bottom of the collecting box, and a self-locking structure is provided on the plurality of universal wheels.

4. The multi-stage screening mechanism for silver powder production according to claim 1, characterized in that: A dust suction pipe is installed on one side of the third screening box, a filter box is fixedly installed on the dust suction pipe, a fan is provided on one side of the filter box, a mounting frame is fixed on the fan, and an air inlet end of the fan is threadedly connected to the filter box.

5. The multi-stage screening mechanism for silver powder production according to claim 1, characterized in that: Brush pads are installed at the bottom of the plurality of stirring blades, and the plurality of brush pads are respectively in contact with the plurality of screens, and the plurality of screens are all made of metal.

6. The multi-stage screening mechanism for silver powder production according to claim 4, characterized in that: A support plate is detachably mounted on one side of the filter box, a filter bag is mounted on the support plate, and the filter bag is located inside the filter box. The collecting box, the first screening box, the second screening box and the third screening box are all made of plastic.

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