A powder grading, screening and mixing integrated device

Abstract

This invention discloses an integrated device for grading, screening, and mixing powders, comprising a mounting frame assembly. The mounting frame assembly includes a first mounting frame, a second mounting frame connected to the top of the first mounting frame, a third mounting frame welded to the bottom of the second mounting frame, a connecting frame connected to one side of the second mounting frame, a screening mechanism movably connected inside the second mounting frame, deflection mechanisms symmetrically arranged on the outer sides of the two connecting frames, a vibrating motor and a feeding hopper mounted on the screening mechanism, a collecting hopper assembly fixedly connected to the other side of the second mounting frame, positioned corresponding to the screening mechanism, a mixing mechanism connected to the bottom of the collecting hopper assembly, and a waste box slidably connected to the bottom of the second mounting frame, the waste box being located at the bottom of the screening mechanism. The vibrating motor drives the screening mechanism to vibrate synchronously, and the screening mechanism performs multi-stage synchronous screening to improve screening efficiency. Combined with the collecting hopper assembly and the mixing mechanism, the target material powder is integrated for screening, collection, and quantitative mixing.

Description

Technical Field

[0001] This invention relates to the field of powder sieving technology, and more specifically to an integrated device for grading, screening and mixing powders. Background Technology

[0002] Powdered materials are now widely used in various technical fields. With the development of science and technology, the requirements for powders used in applications are becoming increasingly stringent, such as high purity, functionalization, and micronization. Powder particle size and morphology also have numerous requirements in many fields. Therefore, screening powders according to particle size and selecting powders of suitable particle size is of great significance. Different powders may have different properties, but even for powders of the same substance, differences in particle size distribution can lead to differences in properties, especially for ultrafine powders. The particle size distribution of a powder largely determines its properties and applications. Existing sieving devices often only perform single-stage sieving or achieve graded sieving by using multiple sieving devices in series. This sieving method is time-consuming and requires the powder to pass through multiple sieving devices step by step. Therefore, an integrated device for grading, screening, and mixing powders is needed. Summary of the Invention

[0003] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide an integrated device for grading, screening and mixing of powders.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] An integrated device for grading, screening, and mixing powder includes a mounting frame assembly. The mounting frame assembly includes an L-shaped first mounting frame, a Z-shaped second mounting frame connected to the top of the first mounting frame, a third mounting frame welded to the bottom of the second mounting frame, and symmetrically connected obliquely 7-shaped connecting frames at both ends of one side of the second mounting frame. A reinforcing plate is provided between the connecting frames and the second mounting frame. A screening mechanism is movably connected inside the second mounting frame. Deflection mechanisms are symmetrically arranged on the outer sides of the two connecting frames and are correspondingly connected to the screening mechanism. A vibrating motor and a feeding hopper are provided on the screening mechanism. A collection hopper assembly is fixedly connected to the other side of the second mounting frame, corresponding to the screening mechanism. A mixing mechanism is connected to the bottom of the collection hopper assembly. A waste box is slidably connected to the bottom of the second mounting frame and is located at the bottom of the screening mechanism.

[0006] As a further aspect of the present invention: the screening mechanism includes multiple screening components arranged sequentially at equal intervals, the multiple screening components are arranged in a stepped manner, deflection columns are symmetrically arranged at the end of the screening components near the second mounting frame, the deflection columns on the same side of the multiple screening components are connected to a combination plate, the combination plates on both sides are fixedly installed on the second mounting frame, and movable connecting components are symmetrically arranged on both sides of the end of the screening components away from the second mounting frame for connecting with the deflection mechanism, and the multiple screening components are connected to each other with dustproof covers.

[0007] As a further aspect of the present invention: the movable connection component includes a connection groove, both ends of which are connected to a connection spring, and the two connection springs are connected to a connection post.

[0008] As a further embodiment of the present invention: the screening assembly includes a screening box body, a screening chamber is provided inside the screening box body, a screen is slidably installed at the bottom of the screening chamber, a plurality of extension plates are provided at intervals on the top surface of the screen, a material drop chute is provided on one side plate of the screening box body, and an inclined discharge chute is provided inside both side plates of the screening box body, the two ends of the material drop chute are respectively connected to the corresponding discharge chute, the position of the discharge chute is lower than the material drop chute, a discharge port is provided at one end of the discharge chute, and the discharge port is connected to the collection hopper assembly through a connecting hose.

[0009] As a further embodiment of the present invention: multiple extension plates are divided into two groups, with multiple extension plates in each group arranged in parallel at equal intervals, and the two groups of extension plates are distributed in a cross pattern.

[0010] As a further aspect of the present invention: the mesh size of the screens in the multiple screening components decreases sequentially from top to bottom.

[0011] As a further aspect of the present invention: an assembly groove is provided on the outer side of the connecting frame, and a moving window is provided in the assembly groove corresponding to the position of each movable connecting component. A deflection cylinder is installed in the assembly groove, and a moving rod is connected to the retraction rod of the deflection cylinder. A rotating shaft is provided on the moving rod, and the rotating shaft is rotatably connected to the connecting column.

[0012] As a further aspect of the present invention: the hopper assembly includes multiple hoppers, each hopper being matched with a corresponding screening component, and a discharge pipe connected to one side of the bottom of the hopper, with a control valve installed in the discharge pipe, and the multiple discharge pipes being connected to the mixing mechanism.

[0013] As a further aspect of the present invention: the mixing mechanism includes a mixing box, a stirring shaft is rotatably connected inside the mixing box, a plurality of stirring rods are provided on the stirring shaft, a mixing motor is connected to one end of the stirring shaft, and a discharge pipe is provided on the bottom surface of the mixing box.

[0014] The beneficial effects of this invention are:

[0015] 1. This invention uses a vibrating motor to drive the screening mechanism to vibrate synchronously. The screening mechanism is divided into multiple stages for synchronous screening, which improves screening efficiency. At the same time, it is combined with a collection hopper group and a mixing mechanism to screen, collect and quantitatively mix the target material powder in an integrated manner. The whole device can continuously feed and screen, and then mix the material to meet the requirements, which greatly improves the production efficiency. During the screening process, the tilt angle of the screening mechanism can be changed by the deflection mechanism to increase the discharge speed of the screened powder, further improving the production efficiency.

[0016] 2. This invention features multi-stage screening based on requirements, selecting screens with different mesh sizes. Because multiple screening components are interconnected and vibrate synchronously, powder falling onto the next screen is simultaneously screened while the previous screen is being screened, improving screening efficiency. Multiple extension plates are installed on the screens to lengthen the screening path, ensuring more thorough screening. Furthermore, the multiple screening components are arranged in a stepped manner, with each subsequent stage offset to the right compared to the previous stage, further extending the screening path of the material falling from the previous stage's screen. During the material falling process, a deflection cylinder drives a moving rod, pulling the screening mechanism downwards, causing it to deflect downwards for more thorough material falling. The remaining powder after screening enters the corresponding collection hopper through a material chute and discharge chute for collection. Further, a control valve is activated to control the amount of powder entering the mixing box, followed by starting the mixing motor to drive the stirring rod and mix the powder to obtain the required proportions. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a partial cross-sectional structural schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection structure between the screening mechanism and the hopper assembly of the present invention;

[0021] Figure 4 This is a schematic diagram of the screening component structure of the present invention;

[0022] Figure 5 yes Figure 1 Enlarged structural diagram of region A in the middle;

[0023] Figure 6 yes Figure 2 Enlarged structural diagram of region B in the middle;

[0024] Figure 7 yes Figure 3 Enlarged structural diagram of region C in the middle;

[0025] Figure 8 This is a schematic diagram of the structure of the mobile connection component of the present invention.

[0026] In the diagram: 1. Mounting frame assembly; 11. First mounting frame; 12. Second mounting frame; 13. Third mounting frame; 14. Connecting frame; 141. Assembly slot; 142. Moving window; 15. Reinforcing plate; 2. Screening mechanism; 21. Screening assembly; 210. Screening box body; 211. Screening chamber; 212. Screen; 213. Extension plate; 214. Feed chute; 215. Discharge chute; 216. Discharge port; 217. Connecting hose; 22. Dustproof tarpaulin; 23. 1. Moving connection assembly; 231. Connecting groove; 232. Connecting spring; 233. Connecting column; 24. Deflection column; 25. Combination plate; 3. Deflection mechanism; 31. Deflection cylinder; 32. Moving rod; 4. Vibration motor; 5. Feeding funnel; 6. Collecting hopper group; 61. Collecting hopper; 62. Discharge pipe; 63. Control valve; 7. Mixing mechanism; 71. Mixing box; 72. Mixing motor; 73. Stirring shaft; 74. Stirring rod; 75. Discharge pipe; 8. Waste box. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1-8The diagram shows an integrated powder grading, screening, and mixing device. The device includes mounting frame assemblies 1 positioned at corresponding locations. Mounting frame assemblies 1 include an L-shaped first mounting frame 11, a Z-shaped second mounting frame 12 connected to the top of the first mounting frame 11, and a third mounting frame 13 fixedly welded to the bottom right side of the second mounting frame 12. The bottom surface of the third mounting frame 13 is flush with the bottom surface of the first mounting frame 11, providing balanced support. Symmetrically connected at both ends of the right side of the second mounting frame 12 are obliquely shaped connecting frames 14. A reinforcing plate 15 is provided between the connecting frames 14 and the second mounting frame 12 to increase support strength. A screening mechanism 2 is movably connected inside the second mounting frame 12, and deflection mechanisms 3 are symmetrically arranged on the outer sides of the two connecting frames 14. Two deflection mechanisms 3 are connected to the screening mechanism 2, driving the screening mechanism 2 to deflect, thereby facilitating screening and feeding. A mounting base is provided on the top right side of the screening mechanism 2, and a vibration motor 4 is fixedly installed on the mounting base. A feed hopper 5 is connected to the top left side of the screening mechanism 2 for feeding the entire screening mechanism 2. Furthermore, a collection hopper group 6 is fixedly connected to the left side of the second mounting frame 12, corresponding to the screening mechanism 2, for collecting the various grades of powder after screening. A mixing mechanism 7 is connected to the bottom of the collection hopper group 6 for quantitatively mixing the screening powder of different grades. The mixing mechanism 7 is fixed to the bottom inside of the first mounting frame 11 and abuts against the second mounting frame 12 to maintain stability. A waste box 8 is slidably connected to the bottom inside of the second mounting frame 12. The device collects the waste material that is not needed after screening. The screening mechanism 2 is driven to vibrate synchronously by the vibration motor 4. The screening mechanism 2 is divided into multiple stages to screen synchronously, which improves the screening efficiency. At the same time, it is combined with the collection hopper group 6 and the mixing mechanism 7 to screen, collect and quantitatively mix the target material powder in an integrated manner. The whole device can continuously feed and screen, and then mix the mixture that meets the requirements, which greatly improves the production efficiency. During the screening process, the tilt angle of the screening mechanism 2 can be changed by the deflection mechanism 3 to increase the discharge speed of the screened powder, further improving the production efficiency.

[0029] Further, such as Figures 2-4 and Figures 7-8As shown, the screening mechanism 2 includes multiple screening components 21 arranged at equal intervals. The multiple screening components 21 are arranged in a stepped manner, and each screening component 21 has a deflection column 24 symmetrically arranged at one end near the second mounting frame 12. The deflection columns 24 on the same side of the multiple screening components 21 are connected to a combination plate 25, and the deflection columns 24 can rotate in the combination plate 25. The combination plates 25 on both sides are fixedly installed on the crossbars on both sides of the second mounting frame 12. Movable connecting components 23 are symmetrically arranged on both sides of the screening component 21 away from the second mounting frame 12 for connecting with the deflection mechanism 3 for deflection. Furthermore, the multiple screening components 21 arranged in a stepped manner are connected to each other with dustproof covers 22 to prevent the spread of dust during the screening process and pollution of the working environment.

[0030] Further as Figure 8 As shown, the detailed structure of the movable connecting component 23 includes symmetrically opened connecting grooves 231 on the screening component 21. Connecting springs 232 are connected to both ends of the connecting grooves 231. A connecting column 233 is connected between the two connecting springs 232 and the middle of them, so that the connecting column 233 can move elastically left and right under the action of the elastic force of the connecting springs 232.

[0031] Further, such as Figure 3 , Figure 4 and Figure 7 As shown, the screening assembly 21 includes a screening box body 210, wherein deflecting columns 24 are disposed on both sides of one end of the screening box body 210. The screening box body 210 is movably mounted on the combination plate 25 via two deflecting columns 24. A screening chamber 211 is provided inside the screening box body 210. A screen 212 is slidably installed at the bottom of the screening chamber 211. Multiple extension plates 213 are spaced apart on the top surface of the screen 212. The multiple extension plates 213 are inclined and divided into two groups. Each group of multiple extension plates 213 are arranged parallel at equal intervals. The two groups of extension plates 213 are cross-distributed to extend the screening path of the incoming powder and improve the screening rate. Meanwhile, a material discharge trough 214 is provided on the side plate of the screening box body 210 away from the deflection column 24, and the material discharge trough 214 is an inclined trough that slopes from the middle to both sides. An inclined discharge trough 215 is provided inside the other two side plates of the screening box body 210. The two ends of the material discharge trough 214 are respectively connected to the corresponding discharge trough 215, and the position of the discharge trough 215 is lower than that of the material discharge trough 214. A discharge port 216 is provided at the end of the discharge trough 215 near the deflection column 24. The discharge port 216 is connected to the collection hopper group 6 through a connecting hose 217. Furthermore, the discharge trough 215 is an inclined trough that is higher at the end near the material discharge trough 214, which facilitates material discharge.

[0032] The aperture of the screens 212 in the multiple screening components 21 decreases from top to bottom.

[0033] Further, such as Figure 1 and Figure 5 As shown, the outer side of the connecting frame 14 is provided with an assembly groove 141. A moving window 142 is provided in the assembly groove 141 corresponding to each moving connecting component 23. A deflection cylinder 31 is installed in the assembly groove 141. The retraction rod of the deflection cylinder 31 is connected to a moving rod 32. A rotating shaft is provided in the moving rod 32 corresponding to each connecting column 233. The rotating shaft is rotatably connected to the connecting column 233. The placement angle of the screening mechanism 2 is adjusted by the extension and retraction of the deflection cylinder 31 to facilitate the falling of the screened powder.

[0034] Further, such as Figure 1 , Figure 2 and Figure 3 As shown, the above-mentioned hopper group 6 includes multiple hoppers 61, and each hopper 61 is matched with a corresponding screening component 21. Each hopper 61 is connected to a corresponding connecting hose 217 to collect powder of different grades. A discharge pipe 62 is connected to one side of the bottom of each hopper 61, and a control valve 63 is provided in the discharge pipe 62 to control the amount of powder released. Multiple discharge pipes 62 are connected to the mixing mechanism 7.

[0035] like Figure 2 and Figure 6 As shown, the mixing mechanism 7 includes a mixing box 71 connected inside the first mounting frame 11. A stirring shaft 73 is rotatably connected inside the mixing box 71. Multiple stirring rods 74 are mounted on the stirring shaft 73, with the central stirring rod 74 positioned centrally and the two side stirring rods 74 inclined towards the center, as detailed below. Figure 6 As shown, one end of the stirring shaft 73 is connected to the mixing motor 72, which is fixedly mounted on the support plate on the first mounting bracket 11. A discharge pipe 75 is provided below the middle stirring rod 74 and on the mixing box 71 for discharging the mixture. The bottom surface of the mixing box 71 is inclined towards the slope of the discharge pipe 75 to facilitate mixing and discharging.

[0036] In use, the powder to be screened is continuously injected through the feed funnel 5. The vibration motor 4 is started, driving the screening mechanism 2 to vibrate. Multiple screening components 21 within the vibrating screening mechanism 2 vibrate synchronously. The uppermost screening component 21 performs primary screening of the powder, while powder smaller than the aperture falls to the lower screening component 21 for secondary screening. Multiple screening stages can be set as needed, selecting screens 212 with different mesh sizes. Because the multiple screening components 21 are interconnected and vibrate synchronously, powder falling to the next screen 212 while being screened at the previous stage is simultaneously screened, improving screening efficiency. Furthermore, multiple extension plates 213 are provided on the screen 212 to extend the screening range. The path ensures more thorough screening, and multiple screening components 21 are arranged in a stepped manner, with each level offset to the right compared to the previous level, further extending the screening path of the material falling from the previous screening head. During the material falling process, the deflection cylinder 31 drives the moving rod 32 to pull the screening mechanism 2 downward, causing the screening mechanism 2 to deflect downward, making the material falling more thoroughly. The powder left after screening enters the corresponding collection hopper 61 through the material falling chute 214 and the discharge chute 215 for collection. Further, the control valve 63 is activated to control the amount of powder put into the mixing box 71 according to the needs. Then, the mixing motor 72 is activated to drive the stirring rod 74 to stir and mix, obtaining the required proportion of mixed powder.

[0037] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A powder grading, screening, and mixing integrated device, comprising a mounting frame assembly (1), characterized in that, The mounting frame assembly (1) includes an L-shaped first mounting frame (11), a Z-shaped second mounting frame (12) connected to the top of the first mounting frame (11), a third mounting frame (13) welded to the bottom of the second mounting frame (12), and a symmetrically connected 7-shaped connecting frame (14) at both ends of one side of the second mounting frame (12). A reinforcing plate (15) is provided between the connecting frame (14) and the second mounting frame (12). A screening mechanism (2) is movably connected inside the second mounting frame (12). The two connecting frames (11) 4) A deflection mechanism (3) is symmetrically arranged on the outside. The two deflection mechanisms (3) are connected to the screening mechanism (2) respectively. The screening mechanism (2) is equipped with a vibration motor (4) and a feeding funnel (5). The other side of the second mounting frame (12) is fixedly connected to a collection hopper group (6), which is positioned corresponding to the screening mechanism (2). The bottom of the collection hopper group (6) is connected to a mixing mechanism (7). The bottom of the second mounting frame (12) is slidably connected to a waste box (8). The waste box (8) is located at the bottom of the screening mechanism (2). The screening mechanism (2) includes multiple screening components (21) arranged sequentially at equal intervals. The multiple screening components (21) are arranged in a stepped manner. A deflection column (24) is symmetrically arranged at one end of the screening component (21) near the second mounting frame (12). The deflection columns (24) on the same side of the multiple screening components (21) are connected to a combination plate (25). The combination plates (25) on both sides are fixedly installed on the second mounting frame (12). Movable connecting components (23) are symmetrically arranged on both sides of the screening component (21) away from the second mounting frame (12) for connecting with the deflection mechanism (3). The multiple screening components (21) are connected to each other with dustproof connections. The enclosure (22) includes a connecting groove (231), with connecting springs (232) connected to both ends of the connecting groove (231), and connecting posts (233) connected to the two connecting springs (232); the outer side of the connecting frame (14) is provided with an assembly groove (141), and a moving window (142) is provided in the assembly groove (141) corresponding to the position of each moving connecting component (23). A deflection cylinder (31) is installed in the assembly groove (141), and a moving rod (32) is connected to the retraction rod of the deflection cylinder (31). A rotating shaft is provided on the moving rod (32), and the rotating shaft is rotatably connected to the connecting post (233). The screening assembly (21) includes a screening box body (210), a screening chamber (211) is provided inside the screening box body (210), a screen (212) is slidably installed at the bottom of the screening chamber (211), a plurality of extension plates (213) are provided at intervals on the top surface of the screen (212), a material drop chute (214) is provided on one side plate of the screening box body (210), and an inclined discharge chute (215) is provided inside both side plates of the screening box body (210). The two ends of the material drop chute (214) are respectively connected to the corresponding discharge chute (215), the position of the discharge chute (215) is lower than the material drop chute (214), and a discharge port (216) is provided at one end of the discharge chute (215). The discharge port (216) is connected to the collection hopper group (6) through a connecting hose (217). The hopper assembly (6) includes multiple hoppers (61), each hopper (61) is matched with a corresponding screening component (21), and a discharge pipe (62) is connected to one side of the bottom of the hopper (61). A control valve (63) is installed in the discharge pipe (62), and multiple discharge pipes (62) are connected to the mixing mechanism (7).

2. The integrated device for grading, screening, and mixing powders according to claim 1, characterized in that, Multiple extension plates (213) are divided into two groups, with multiple extension plates (213) in each group arranged in parallel at equal intervals, and the two groups of extension plates (213) are distributed in a cross pattern.

3. The integrated device for grading, screening, and mixing powders according to claim 1, characterized in that, The aperture of the screens (212) in the multiple screening components (21) decreases from top to bottom.

4. The integrated device for grading, screening, and mixing powders according to claim 1, characterized in that, The mixing mechanism (7) includes a mixing box (71), a stirring shaft (73) is rotatably connected inside the mixing box (71), a plurality of stirring rods (74) are provided on the stirring shaft (73), a mixing motor (72) is connected to one end of the stirring shaft (73), and a discharge pipe (75) is provided on the bottom surface of the mixing box (71).

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