A crushing and grading device for aluminum powder production and use method thereof

Abstract

The present invention relates to the technical field of aluminum powder crushing and classification, and in particular to a crushing and classification device for aluminum powder production and a method of using the same. The device comprises a base, a feed processing assembly is provided at the left end of the top surface of the base, a feed pipe is provided on the feed processing assembly, a feed hopper is fixedly connected to the top surface of the feed pipe, a ball mill body is connected to the lower end of the feed pipe, a sorting box is provided in the middle of the top surface of the base, one end of the ball mill body is mounted on the sorting box, a first conveyor belt is provided inside the sorting box, a conveyor roller is frictionally contacted on one side of the first conveyor belt, one end of the conveyor roller passes through the inner wall of the sorting box and extends to the outside, and a first motor is installed on the rear wall of the sorting box through a mounting seat. It ensures that the aluminum powder material is fully squeezed and crushed during the crushing process, reduces the residue of large-sized particles, realizes the rapid separation of aluminum powder and impurities, improves the sorting efficiency, reduces the residue of impurities, improves the purity and quality of aluminum powder, and improves the accuracy of grading and screening.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum powder crushing and classification, in particular to a crushing and classification device for aluminum powder production and a use method thereof. Background Art

[0002] Aluminum powder is a silver metallic pigment, which is made of pure aluminum foil with a small amount of lubricant added, crushed and polished. Aluminum powder has the characteristics of light weight, high floating power, strong covering power, and good light and heat reflection performance. It is used to identify fingerprints and make fireworks, and is widely used in building materials, chemicals, machinery, transportation, navigation, aerospace, military and other fields. Due to the wide range of uses, large demand and variety of aluminum powder, the demand for aluminum processing and manufacturing is becoming more and more extensive, especially in the high-tech field. The demand for aluminum and purity requirements are getting higher and higher. In the production process of aluminum powder, separation of aluminum powder according to its particle size is a very important step, which directly affects the final quality and application effect of aluminum powder;

[0003] After searching, a Chinese patent with announcement number CN214812501U provides an aluminum powder crushing and grading device, including an external shell, a protective box is fixedly connected to the top of the external shell, a feed port is inserted on the top of the external shell on one side of the protective box, a throwing rotating rod is rotatably connected to the top of the inner surface of the external shell, and a discharge chute is fixedly connected to the side wall of the inner surface of the external shell. The device can quickly and stably discharge aluminum powder of each level synchronously after grading is completed through the coordinated arrangement of the discharge chute, the throwing motor, the throwing rotating rod and the transmission barrel during use, which greatly improves the collection efficiency of aluminum powder after grading, makes continuous production more convenient, and improves economic benefits;

[0004] However, during use, it was found that before grading, the device was not effective in removing impurities in the aluminum powder, which easily led to some impurities mixing into the aluminum powder, thus affecting the quality of the aluminum powder after grading and screening. The mixing of impurities not only reduced the purity of the aluminum powder, but also had an adverse effect on the quality of subsequent products produced using the aluminum powder. At the same time, the grading effect of the device was less accurate, and inaccurate grading easily led to uneven quality of the aluminum powder, which made it difficult to meet the requirements of high-tech fields for aluminum powder particle size and purity, and was not conducive to the crushing and grading of aluminum powder production. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a crushing and grading device for aluminum powder production and a method for using the same, which solves the problem that the removal effect of impurities in aluminum powder before grading is poor, which easily leads to some impurities being mixed into the aluminum powder, thereby affecting the quality of the aluminum powder after grading and screening. The mixing of impurities will not only reduce the purity of the aluminum powder, but also have an adverse effect on the quality of products produced using the aluminum powder in the subsequent production. At the same time, the grading effect accuracy of the device is poor, and inaccurate grading can easily lead to uneven quality of the aluminum powder, making it difficult to meet the requirements of high-tech fields for aluminum powder particle size and purity, and is not conducive to the technical problem of crushing and grading for aluminum powder production.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a crushing and grading device for aluminum powder production, comprising a base, a feed processing assembly is provided at the left end of the top surface of the base, a feed pipe is provided on the feed processing assembly, a feed hopper is fixedly connected to the top surface of the feed pipe, a ball mill body is connected to the lower end of the feed pipe, a sorting box is provided in the middle of the top surface of the base, one end of the ball mill body is installed on the sorting box, a first conveyor belt is provided inside the sorting box, a conveyor roller is frictionally contacted on one side of the first conveyor belt, one end of the conveyor roller passes through the inner wall of the sorting box and extends to the outside, a first motor is installed on the rear wall of the sorting box through a mounting seat, and the output shaft of the first motor is connected to the conveyor belt. The rollers are coaxially connected, and the other side of the first conveyor belt is frictionally contacted with an eddy current sorting magnetic roller. A second conveying assembly is provided at the upper end of the sorting box, and a sealing block is fixedly connected to the top surface of the sorting box, and the bottom surface of one end of the sealing block is slidably connected to the outer wall of the first conveyor belt. The output end of the ball mill body passes through the top surface of the sealing block and extends to the inside. A sorting discharge block is installed at the right end of the sorting box, and a discharge pipe is provided on the lower side of the sorting discharge block. The outer wall of the upper end of the discharge pipe is slidably connected to the outer wall of the first conveyor belt, and one end of the sorting discharge block is gap-matched with the outer wall of the first conveyor belt. The sorting discharge block has an inclined structure, and a grading assembly is provided on the right side of the sorting box, and a plurality of fine-mesh screens are provided on the grading assembly.

[0007] Preferably, a support frame is installed on the bottom surface of the feed pipe through a mounting seat, one end of the ball mill body is installed on the support frame, a rolling baffle is provided on one side of the inner wall of the feed pipe, and a drainage block is fixedly connected to the other side of the inner wall of the feed pipe, the rolling baffle and the top surface of the drainage block are both inclined structures, and a plurality of arc grooves are opened on the side wall of the drainage block, two eccentric rollers are provided inside the two arc grooves located at the upper end, and a rolling roller is provided inside the arc groove located at the lower end, and the outer peripheral walls at both ends of the eccentric roller and the rolling roller are rotatably connected to the feed pipe.

[0008] Preferably, one end of the eccentric roller and the rolling roller passes through the feed pipe and extends to the outside, one of the eccentric rollers extending to the outside is sleeved with a first pulley, and the other eccentric roller and the rolling roller extending to the outside is sleeved with a second pulley, the diameter of the first pulley is greater than the diameter of the second pulley, both of the second pulleys and the first pulley are driven by belt friction, a second motor is installed on the rear wall of the feed pipe through a mounting seat, and the output shaft of the second motor is coaxially connected to the eccentric roller at the upper end.

[0009] Through the above technical scheme, one of the eccentric rollers is driven to rotate by the output shaft of the second motor, so that one of the first pulleys rotates synchronously, and one of the first pulleys is transmitted to the other first pulley and the second pulley rotates synchronously through belt friction. At this time, the two eccentric rollers and the rolling roller rotate synchronously, so that the gap between the eccentric roller and the rolling baffle is adjusted while the gap changes, and the aluminum powder material falling in the gap is squeezed and crushed as the gap changes. After the larger particles in the aluminum powder material are crushed by the two eccentric rollers, they are further crushed by the rolling roller.

[0010] Preferably, two slots are provided on the drainage block, the slots extend to one end of the feed pipe, a first scraper is inserted into the slot, one end of the first scraper extends to the outside of the feed pipe, a positioning block is fixedly connected to the first scraper extending to the outside, an adjusting hand wheel is inserted into the positioning block through a through hole, and the outer wall of the feed pipe is threadedly connected to the threaded end of the adjusting hand wheel through a threaded hole.

[0011] Through the above technical solution, the aluminum powder attached to the eccentric roller during extrusion and crushing is scraped off by the first scraper, thereby preventing the aluminum powder from accumulating on the eccentric roller to form lumps.

[0012] Preferably, the top surface of the sealing block is slidably connected to a T-shaped push block, both ends of the T-shaped push block are slidably connected to the sorting box, a first cylinder is installed in the middle of the top surface of the sealing block through a mounting seat, the top surface of the piston rod of the first cylinder is fixedly connected to the upper end of the T-shaped push block, and the bottom surface of the T-shaped push block is gap-matched with the top surface of the first conveyor belt.

[0013] Through the above technical solution, the design of the T-shaped push block effectively flattens the aluminum powder during the conveying process, avoiding the problems of aluminum powder accumulation and uneven dispersion, so that the aluminum powder can pass through the eddy current sorting magnetic roller evenly and consistently, thereby improving the accuracy and reliability of sorting.

[0014] Preferably, the second conveying component includes a soft magnetic conveyor belt, the soft magnetic conveyor belt has two transmission rollers with a symmetrical structure and friction transmission inside, and the transmission rollers have two brackets with a symmetrical structure and rotationally connected, one of the transmission rollers and the soft magnetic conveyor belt are both slidably connected to the sealing block, and the rear wall of the sorting box is provided with a discharge guide plate, and the discharge guide plate is located below one side of the soft magnetic conveyor belt. A connecting block is fixedly connected to the bottom surface of the bracket at the rear end, and a second scraper is installed between the two connecting blocks. The top surface of the second scraper is slidably connected to the outer wall of the soft magnetic conveyor belt, and one of the transmission rollers passes through one of the brackets and extends to the outside.

[0015] Through the above technical solution, the adsorbed magnetic material moves along the soft magnetic conveyor belt to the second scraper, and the magnetic material on the outer wall of the lower end of the soft magnetic conveyor belt is scraped and separated by the second scraper. The separated magnetic material falls into the discharge guide plate and is discharged to the outside for collection.

[0016] Preferably, the transmission roller extending to the outside is coaxially connected with a universal joint, the other end of the universal joint is coaxially connected with a rotating shaft, the rotating shaft is rotatably connected with a support, the support is fixedly connected to the rear wall of the sorting box, and the outer peripheral wall of the other end of the rotating shaft and the outer peripheral wall of the conveying roller extending to the outside are both sleeved with bevel gears, and the two bevel gears are meshed with each other.

[0017] Through the above technical solution, the output shaft of the first motor drives the conveyor roller to rotate while rotating one of the bevel gears, meshing and transmitting to the other bevel gear for synchronous rotation, driving the rotating shaft and the universal joint to rotate synchronously, causing one of the transmission rollers to rotate along the bracket, so that the inner wall of the soft magnetic conveyor belt is in frictional contact with the outer wall of the transmission roller, driving the soft magnetic conveyor belt to rotate counterclockwise.

[0018] Preferably, the grading assembly includes a spring seat, the bottom surface of the spring seat is fixedly connected to the top surface of the base, the spring seats are provided in a ring array structure, the fine mesh screens are provided with a plurality of them, the bottom surface of the fine mesh screen located at the lower end is fixedly connected to the top surface of the spring seat, the bottom surface of the fine mesh screen located at the lower end is symmetrically equipped with two vibration motors through a mounting seat, the middle part of the bottom surface of the fine mesh screen located at the lower end is rotatably connected with a rotating rod, a plurality of sleeves are sleeved on the rotating rod, a cleaning block is fixedly connected to the sleeve, the bottom surface of the cleaning block is slidably connected to the inner top surface of the fine mesh screen, a fastening wheel is threadedly connected to the sleeve through a threaded hole, the threaded end of the fastening wheel is threadedly connected to the outer wall of the rotating rod, the lower end of the rotating rod passes through the fine mesh screen located at the lower end and extends to the outer wall, the bottom surface of the fine mesh screen located at the lower end is equipped with a servo motor through a mounting seat, and the output shaft of the servo motor is coaxially connected to the rotating rod extending to the outside.

[0019] Through the above technical scheme, the output shaft of the servo motor drives the rotating rod and the sleeve to rotate, so that the sleeve drives the cleaning block to scrape off the aluminum powder accumulated and stuck on the fine mesh screen, ensuring that the fine mesh screen always maintains good screening performance and improves the screening efficiency and accuracy.

[0020] Preferably, the fine-mesh screen is connected to a discharge pipe, a groove is provided on the discharge pipe, a discharge block is inserted in the groove, an electric push rod is installed on the top surface of the discharge pipe through a mounting seat, the piston rod of the electric push rod is fixedly connected to the upper end of the discharge block, two adjacent fine-mesh screens are fixedly connected by buckles, a circular groove is provided on the bottom surface of the fine-mesh screen, a circular protrusion is fixedly connected to the top surface of the fine-mesh screen, and two adjacent circular protrusions are snap-fitted with the circular groove.

[0021] Through the above technical solution, the vibration motor drives multiple fine-mesh screens to vibrate simultaneously, so as to grade and screen the aluminum powder, and discharge the aluminum powder of suitable size from different discharge pipes to the outside for collection.

[0022] Preferably, a method for using a crushing and classifying device for aluminum powder production comprises the following steps:

[0023] Crushing: First, the aluminum powder material that needs to be crushed and classified is transported to the inside of the feed hopper, and slides downward through the inclined part of the rolling baffle and the top surface of the drainage block, so that the aluminum powder material moves downward along the rolling baffle and the drainage block. During the movement, one of the eccentric rollers is driven to rotate by the output shaft of the second motor, so that one of the first pulleys rotates synchronously, and one of the first pulleys is transmitted to the other first pulley and the second pulley to rotate synchronously through belt friction. At this time, the two eccentric rollers and the rolling roller rotate synchronously, so that the gap between the eccentric roller and the rolling baffle is adjusted while the gap changes. The aluminum powder material falling in the gap is squeezed and crushed as the gap changes. After the larger particles in the aluminum powder material are crushed by the two eccentric rollers, they are further crushed and crushed by the rolling roller to complete the preliminary crushing operation of the aluminum powder material. The crushed aluminum powder material enters the ball mill body for grinding.

[0024] During the crushing process, the two first scrapers are respectively plugged into the feed pipe through the slots, and the positioning block is threadedly connected to the feed pipe by adjusting the hand wheel. After the first scraper is installed, the aluminum powder attached to the eccentric roller during the crushing is scraped off by the first scraper;

[0025] Sorting: The ground aluminum powder is discharged from the inside of the ball mill body to the top surface of the first conveyor belt of the sorting box. At this time, the output shaft of the first motor drives the conveyor roller to rotate, so that the friction transmission of the conveyor roller drives the first conveyor belt to rotate clockwise, and the aluminum powder on the top surface of the first conveyor belt is moved from left to right. During the movement, the output shaft of the first cylinder pushes the T-shaped push block to slide along the sorting box and the sealing block, and the distance between the lower end of the T-shaped push block and the top surface of the first conveyor belt is adjusted. The aluminum powder in the conveying process is flattened by the T-shaped push block. The flattened aluminum powder continues to move to the right for transportation. At the same time, the first conveyor belt is frictionally driven to the eddy current sorting magnetic roller synchronously. The eddy current separation magnetic rollers are rotated to induce eddy currents inside the aluminum powder through a high-frequency alternating magnetic field. The repulsive force between the eddy currents and the original magnetic field is used to make the aluminum powder jump forward along its conveying direction and move to the inside of the separation block for conveying. At this time, impurities in the aluminum powder remain on the outer wall of the first conveyor belt. As the first conveyor belt rotates, the impurities in the aluminum powder pass through the gap between the separation block and the first conveyor belt and fall into the discharge pipe to be discharged to the outside. The impurities attached to the first conveyor belt are scraped off and slide into the discharge pipe through the sliding contact between the discharge pipe and the outer wall of the first conveyor belt, and the aluminum powder and impurities are separated and processed.

[0026] Impurity removal: During the process of aluminum powder being conveyed on the first conveyor belt, the output shaft of the first motor drives the conveyor roller to rotate while causing one of the bevel gears to rotate. At this time, one of the bevel gears meshes and transmits to the other bevel gear to rotate synchronously, driving the rotating shaft to rotate along the support, causing one end of the universal joint to rotate synchronously, driving the other end of the universal joint to rotate synchronously, and the universal joint drives one of the transmission rollers to rotate along the support, causing the inner wall of the soft magnetic conveyor belt to frictionally contact with the outer wall of the transmission roller, driving the soft magnetic conveyor belt to rotate counterclockwise. During the rotation of the soft magnetic conveyor belt, the magnetic materials such as iron impurities in the aluminum powder on the top surface of the first conveyor belt are adsorbed, and the adsorbed magnetic materials move to the second scraper along with the soft magnetic conveyor belt. The magnetic materials on the outer wall of the lower end of the soft magnetic conveyor belt are scraped and separated by the second scraper. The separated magnetic materials fall into the inside of the discharge guide plate and are discharged to the outside for collection;

[0027] Grading: Select fine mesh screens with appropriate apertures for grading, connect the annular protrusions of two adjacent fine mesh screens with the annular slots, and fix them with buckles, install them to an appropriate number of fine mesh screens, so that the apertures of multiple fine mesh screens decrease from top to bottom, and transport the sorted aluminum powder to the inside of the fine mesh screen at the upper end through the sorting discharge block. Drive multiple fine mesh screens to vibrate simultaneously through the vibration motor to grade and screen the aluminum powder, and discharge the aluminum powder of appropriate size from different discharge pipes to the outside for collection. When discharging, the piston rod of the electric push rod pushes the discharge block to slide along the discharge pipe through the groove, and the material inside the fine mesh screen is discharged after sliding to the appropriate position;

[0028] Before graded screening, the fine mesh screen is inserted into the rotating rod while installing the fine mesh screen. After the installation of the fine mesh screen is completed, the sleeve is inserted into the rotating rod and fixed by a fastening wheel. While the fine mesh screen is vibrating and screening, the rotating rod and the sleeve are driven to rotate by the output shaft of the servo motor, so that the sleeve drives the cleaning block to scrape off the aluminum powder accumulated and stuck on the fine mesh screen.

[0029] Beneficial effects of the present invention:

[0030] 1. In the present invention, during crushing, the aluminum powder material to be crushed and classified is first transported to the inside of the feed hopper, and slides downward through the inclined portion of the rolling baffle and the top surface of the drainage block, so that the aluminum powder material moves downward along the rolling baffle and the drainage block. During the movement, one of the eccentric rollers is driven to rotate by the output shaft of the second motor, so that one of the first pulleys rotates synchronously, and one of the first pulleys is driven to rotate synchronously with the other first pulley and the second pulley through belt friction transmission. At this time, the two eccentric rollers and the rolling roller rotate synchronously, so that the gap between the eccentric roller and the rolling baffle is adjusted while the gap changes. The aluminum powder material falling in the gap is squeezed and crushed, and the aluminum powder material in the aluminum powder material is removed by the two eccentric rollers. After the larger particles are crushed, they are further crushed by the rolling roller to complete the initial crushing operation of the aluminum powder material. The crushed aluminum powder material enters the ball mill body for grinding treatment, realizing efficient crushing of the aluminum powder material. The rotation and gap adjustment of the eccentric roller accurately control the crushing force to ensure that the aluminum powder material is evenly and effectively processed during the crushing process. The further crushing operation of the rolling roller further refines the initially crushed aluminum powder material, improves the crushing efficiency, and realizes the effective crushing of aluminum powder materials of different particle sizes, ensuring that the aluminum powder material is fully squeezed and crushed during the crushing process, reducing the residue of large-sized particles, and laying a good foundation for subsequent screening and grinding operations;

[0031] 2. In the present invention, during the crushing process, the two first scrapers are respectively plugged into the feed pipe through the slots, and the hand wheel is adjusted to penetrate the positioning block and threadedly connected to the feed pipe. After the first scrapers are installed, the aluminum powder attached to the eccentric roller during the extrusion crushing is scraped off by the first scrapers to prevent the aluminum powder from accumulating on the eccentric roller to form agglomerates, thereby keeping the surface of the eccentric roller clean and the crushing effect continuous and stable. This helps to maintain a high level of crushing efficiency, ensure that the aluminum powder material can be crushed evenly and effectively, reduce equipment wear, and extend the service life of the equipment.

[0032] 3. In the present invention, during sorting, the ground aluminum powder is discharged from the inside of the ball mill body to the top surface of the first conveyor belt of the sorting box. At this time, the conveying roller is driven to rotate by the output shaft of the first motor, so that the friction transmission of the conveying roller drives the first conveyor belt to rotate clockwise, and the aluminum powder on the top surface of the first conveyor belt is moved from left to right. During the movement, the output shaft of the first cylinder pushes the T-shaped push block to slide along the sorting box and the sealing block, and the distance between the lower end of the T-shaped push block and the top surface of the first conveyor belt is adjusted. The aluminum powder in the conveying process is flattened by the T-shaped push block, and the flattened aluminum powder continues to move to the right for transportation. At the same time, the first conveyor belt friction transmission is synchronously rotated to the eddy current sorting magnetic roller, and the eddy current sorting magnetic roller induces eddy current inside the aluminum powder through the high-frequency alternating magnetic field, and utilizes the repulsive force of the eddy current and the original magnetic field to make the aluminum powder jump forward along its conveying direction and move to the inside of the sorting material block for transportation. At this time, impurities in the aluminum powder remain on the outer wall of the first conveyor belt. As the first conveyor belt rotates, the impurities in the aluminum powder pass through the gap between the sorting material block and the first conveyor belt and fall into the discharge pipe and are discharged to the outside. Through the sliding contact between the discharge pipe and the outer wall of the first conveyor belt, the impurities attached to the first conveyor belt are scraped off and slide into the discharge pipe, and the aluminum powder and impurities are sorted, thereby realizing continuous and stable transportation of aluminum powder, ensuring the smooth progress of the sorting process, realizing rapid separation of aluminum powder and impurities, improving sorting efficiency, reducing residual impurities, improving the purity and quality of aluminum powder, and improving the flexibility and adaptability of the equipment. The design of the T-shaped push block effectively flattens the aluminum powder during transportation, avoiding the problems of aluminum powder accumulation and uneven dispersion, so that the aluminum powder can pass through the eddy current sorting magnetic roller evenly and consistently, thereby improving the accuracy and reliability of sorting.

[0033] 4. In the present invention, during the impurity removal, when the aluminum powder is transported on the first conveyor belt, the output shaft of the first motor drives the conveyor roller to rotate while causing one of the bevel gears to rotate. At this time, one of the bevel gears is meshed and transmitted to the other bevel gear for synchronous rotation, driving the rotating shaft to rotate along the support, causing one end of the universal joint to rotate synchronously, driving the other end of the universal joint to rotate synchronously, and the universal joint drives one of the transmission rollers to rotate along the support, so that the inner wall of the soft magnetic conveyor belt and the outer wall of the transmission roller are in frictional contact, driving the soft magnetic conveyor belt to rotate counterclockwise. During the rotation of the soft magnetic conveyor belt, the first conveyor belt is pushed up The magnetic materials such as iron impurities in the aluminum powder are adsorbed, and the adsorbed magnetic materials move to the second scraper along the soft magnetic conveyor belt. The magnetic materials on the outer wall of the lower end of the soft magnetic conveyor belt are scraped and separated by the second scraper. The separated magnetic materials fall into the discharge guide plate and are discharged to the outside for collection. The magnetic materials such as iron impurities in the aluminum powder are effectively adsorbed and removed, and the impurity removal efficiency is improved. The magnetic materials are scraped off from the soft magnetic conveyor belt by the second scraper, which ensures the accuracy and reliability of impurity removal, thereby improving the purity and quality of the aluminum powder and reducing the wear and damage of these impurities to the equipment.

[0034] 5. In the present invention, during grading, a fine mesh screen with a suitable aperture is selected for grading, the annular protrusions of two adjacent fine mesh screens are clamped with the annular clamping grooves, and fixedly installed by buckles, and installed to a suitable number of fine mesh screens, so that the apertures of multiple fine mesh screens are reduced from top to bottom, and the sorted aluminum powder is transported to the inside of the fine mesh screen at the upper end through the sorting discharging block, and the multiple fine mesh screens are driven to vibrate simultaneously by the vibration motor to grade and screen the aluminum powder, and the aluminum powder of suitable size is discharged from different discharging pipes to the outside for collection. When discharging, the piston rod of the electric push rod pushes the discharging block to slide along the discharging pipe through the groove, and the material inside the fine mesh screen is discharged after sliding to a suitable position. Fine mesh screens with different apertures are selected for combination according to needs, and the configuration of the fine mesh screen is flexibly adjusted to adapt to the grading of aluminum powders with different particle size requirements, thereby avoiding waste and mixing of materials, improving the accuracy of grading and screening, reducing the generation of impurities and unqualified products, and reducing the difficulty and cost of subsequent processing;

[0035] 6. In the present invention, while installing the fine mesh screen, the fine mesh screen is inserted into the rotating rod. After the installation of the fine mesh screen is completed, the sleeve is inserted into the rotating rod and fixed by a fastening wheel, so that the fine mesh screen can vibrate and screen while the rotating rod and the sleeve are driven to rotate by the output shaft of the servo motor, so that the sleeve drives the cleaning block to scrape off the aluminum powder accumulated and stuck on the fine mesh screen, ensuring that the fine mesh screen always maintains good screening performance, improving the efficiency and accuracy of screening, ensuring the continuity of screening, helping to ensure that the aluminum powder is graded according to a predetermined particle size distribution, improving the quality and consistency of the product, and because the fine mesh screen is not easy to be blocked or damaged, the frequency of replacing the fine mesh screen is reduced, further reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a rear view of the overall structure of the present invention;

[0038] Figure 3 It is a cross-sectional view of the feed pipe structure of the present invention;

[0039] Figure 4 It is a cross-sectional view of the drainage block structure of the present invention;

[0040] Figure 5 This is a schematic diagram of the assembly of the first scraper structure of the present invention;

[0041] Figure 6 It is a sectional rear view of the sealing block structure of the present invention;

[0042] Figure 7 It is a rear and bottom view of the discharge guide plate structure of the present invention;

[0043] Figure 8 A bottom view of the second scraper structure of the present invention;

[0044] Fig. 9 It is a rear cross-sectional view of the first conveyor belt structure of the present invention;

[0045] Fig.10 It is a schematic diagram of the hierarchical component structure of the present invention;

[0046] Fig.11 A bottom view of the vibration motor structure of the present invention;

[0047] Fig.12 A cross-sectional view of the fine mesh screen structure of the present invention;

[0048] Fig.13 It is a schematic diagram of the assembly of the circular ring convex block structure of the present invention;

[0049] Fig.14 It is a schematic diagram of the casing structure of the present invention;

[0050] Fig.15 It is a cross-sectional view of the discharge pipe structure of the present invention.

[0051] In the figure: 1, base; 2, feed processing assembly; 201, feed pipe; 202, feed hopper; 203, support frame; 204, rolling baffle; 205, drainage block; 206, arc groove; 207, eccentric roller; 208, rolling roller; 209, first pulley; 210, second pulley; 211, belt; 212, slot; 213, first scraper; 214, positioning block; 215, adjustment hand wheel; 216, second motor; 3, ball mill body; 4, sorting box; 5, first conveyor belt; 6, conveyor roller; 7, eddy current sorting magnetic roller; 8, second conveyor assembly; 801, soft magnetic conveyor belt; 802, transmission roller; 803, bracket; 804 , discharge guide plate; 805, connecting block; 806, second scraper; 9, grading component; 901, fine mesh screen; 902, spring seat; 903, vibration motor; 904, rotating rod; 905, sleeve; 906, cleaning block; 907, fastening wheel; 908, servo motor; 909, discharge pipe; 910, groove; 911, discharge block; 912, electric push rod; 913, buckle; 914, circular groove; 915, circular protrusion; 10, first motor; 11, sealing block; 12, T-shaped push block; 13, first cylinder; 14, universal joint; 15, rotating shaft; 16, support; 17, bevel gear; 18, sorting discharge block; 19, discharge pipe. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0053] Embodiment 1

[0054] like Figure 1 to Figure 5 As shown, this embodiment provides a crushing and grading device for aluminum powder production and a method of using the same, including a base 1, a feed processing assembly 2 is provided at the left end of the top surface of the base 1, a feed pipe 201 is provided on the feed processing assembly 2, a feed hopper 202 is fixedly connected to the top surface of the feed pipe 201, a ball mill body 3 is connected to the lower end of the feed pipe 201, a sorting box 4 is provided in the middle of the top surface of the base 1, one end of the ball mill body 3 is mounted on the sorting box 4, a first conveyor belt 5 is provided inside the sorting box 4, a conveyor roller 6 is frictionally contacted on one side of the first conveyor belt 5, one end of the conveyor roller 6 passes through the inner wall of the sorting box 4 and extends to the outside, a first motor 10 is installed on the rear wall of the sorting box 4 through a mounting seat, and the output shaft of the first motor 10 is coaxial with the conveyor roller 6 The first conveyor belt 5 is connected, and the other side of the first conveyor belt 5 is frictionally contacted with an eddy current sorting magnetic roller 7. A second conveying assembly 8 is provided on the upper end of the sorting box 4. A sealing block 11 is fixedly connected to the top surface of the sorting box 4. The bottom surface of one end of the sealing block 11 is slidingly connected to the outer wall of the first conveyor belt 5. The output end of the ball mill body 3 passes through the top surface of the sealing block 11 and extends to the inside. A sorting discharge block 18 is installed on the right end of the sorting box 4. A discharge pipe 19 is provided on the lower side of the sorting discharge block 18. The outer wall of the upper end of the discharge pipe 19 is slidingly connected to the outer wall of the first conveyor belt 5. One end of the sorting discharge block 18 is gap-matched with the outer wall of the first conveyor belt 5. The sorting discharge block 18 is in an inclined structure. A grading assembly 9 is provided on the right side of the sorting box 4. A plurality of fine-mesh screens 901 are provided on the grading assembly 9.

[0055] The bottom surface of the feed pipe 201 is installed with a support frame 203 through a mounting seat, one end of the ball mill body 3 is installed on the support frame 203, a rolling baffle 204 is provided on one side of the inner wall of the feed pipe 201, and a drainage block 205 is fixedly connected to the other side of the inner wall of the feed pipe 201. The top surfaces of the rolling baffle 204 and the drainage block 205 are both inclined structures, and a plurality of arc grooves 206 are opened on the side wall of the drainage block 205. Two eccentric rollers 206 are provided inside the two arc grooves 206 at the upper end. 07, a rolling roller 208 is provided inside the arc groove 206 at the lower end, and the outer peripheral walls of both ends of the eccentric roller 207 and the rolling roller 208 are rotatably connected to the feed pipe 201, and one end of the eccentric roller 207 and the rolling roller 208 passes through the feed pipe 201 and extends to the outside, and a first pulley 209 is sleeved on one of the eccentric rollers 207 extending to the outside, and a second pulley 210 is sleeved on the other eccentric roller 207 and the rolling roller 208 extending to the outside. 9 has a diameter greater than that of the second pulley 210. Both the second pulleys 210 and the first pulley 209 are frictionally driven by a belt 211. A second motor 216 is installed on the rear wall of the feed pipe 201 through a mounting seat. The output shaft of the second motor 216 is coaxially connected to the eccentric roller 207 located at the upper end; one of the eccentric rollers 207 is driven to rotate by the output shaft of the second motor 216, so that one of the first pulleys 209 rotates synchronously, and one of the first pulleys 209 is frictionally driven to the other first pulley 209 and the second pulley 210 through a belt 211 to rotate synchronously. At this time, the two eccentric rollers 207 and the rolling roller 208 rotate synchronously, so that the gap between the eccentric roller 207 and the rolling baffle 204 is adjusted while the eccentric roller 207 rotates. As the gap changes, the aluminum powder material falling in the gap is squeezed and crushed, and the larger particles in the aluminum powder material are crushed by the two eccentric rollers 207, and then further crushed by the rolling roller 208.

[0056] Two slots 212 are provided on the drainage block 205, and the slots 212 extend to one end of the feed pipe 201. A first scraper 213 is inserted inside the slot 212, and one end of the first scraper 213 extends to the outside of the feed pipe 201. A positioning block 214 is fixedly connected to the first scraper 213 extending to the outside, and an adjusting hand wheel 215 is inserted through a through hole on the positioning block 214. The outer wall of the feed pipe 201 is threadedly connected to the threaded end of the adjusting hand wheel 215 through a threaded hole; the aluminum powder attached to the eccentric roller 207 when it is squeezed and crushed is scraped off by the first scraper 213 to prevent the aluminum powder from accumulating on the eccentric roller 207 to form clumps.

[0057] During crushing, the aluminum powder material to be crushed and classified is first transported to the inside of the feed hopper 202, and slides downward through the inclined portion of the rolling baffle 204 and the top surface of the drainage block 205, so that the aluminum powder material moves downward along the rolling baffle 204 and the drainage block 205. During the movement, one of the eccentric rollers 207 is driven to rotate by the output shaft of the second motor 216, so that one of the first pulleys 209 rotates synchronously, and one of the first pulleys 209 is frictionally transmitted to the other first pulley 209 and the second pulley 210 through the belt 211, and rotates synchronously. At this time, the two eccentric rollers 207 and the rolling roller 208 rotate synchronously, so that the gap between the eccentric roller 207 and the rolling baffle 204 is adjusted while the gap changes, and the aluminum powder material falling in the gap is squeezed and crushed as the gap changes, and the larger particles in the aluminum powder material are crushed by the two eccentric rollers 207;

[0058] The aluminum powder material is further crushed by the crushing roller 208 to complete the preliminary crushing operation. The crushed aluminum powder material enters the ball mill body 3 for grinding treatment, achieving efficient crushing of the aluminum powder material. The rotation and gap adjustment of the eccentric roller 207 accurately control the crushing force, ensuring that the aluminum powder material is evenly and effectively processed during the crushing process. The further crushing operation of the crushing roller 208 further refines the aluminum powder material that has been initially crushed, improves the crushing efficiency, and achieves effective crushing of aluminum powder materials of different particle sizes, ensuring that the aluminum powder material is fully squeezed and crushed during the crushing process, reducing the residue of large-sized particles, and laying a good foundation for subsequent screening and grinding operations;

[0059] During the crushing process, the two first scrapers 213 are respectively plugged into the feed pipe 201 through the slots 212, and the hand wheel 215 is adjusted to penetrate the positioning block 214 and threadedly connected to the feed pipe 201. After the first scrapers 213 are installed, the aluminum powder attached to the eccentric roller 207 during the extrusion and crushing is scraped off by the first scrapers 213 to prevent the aluminum powder from accumulating on the eccentric roller 207 to form agglomerates, thereby keeping the surface of the eccentric roller 207 clean and the crushing effect continuous and stable. This helps to maintain a high level of crushing efficiency, ensure that the aluminum powder material can be crushed evenly and effectively, reduce equipment wear, and extend the service life of the equipment.

[0060] Embodiment 2

[0061] like Figure 1 , Figure 2 , Figure 6 , Figure 7 and Fig. 9As shown, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that a T-shaped push block 12 is slidably connected to the top surface of the sealing block 11, and both ends of the T-shaped push block 12 are slidably connected to the sorting box 4. A first cylinder 13 is installed in the middle of the top surface of the sealing block 11 through a mounting seat, and the top surface of the piston rod of the first cylinder 13 is fixedly connected to the upper end of the T-shaped push block 12, and the bottom surface of the T-shaped push block 12 is gap-matched with the top surface of the first conveyor belt 5; the design of the T-shaped push block 12 effectively flattens the aluminum powder during transportation, avoids the problems of aluminum powder accumulation and uneven dispersion, and enables the aluminum powder to pass through the eddy current sorting magnetic roller 7 evenly and consistently, thereby improving the accuracy and reliability of sorting.

[0062] During sorting, the ground aluminum powder is discharged from the inside of the ball mill body 3 to the top surface of the first conveyor belt 5 of the sorting box 4. At this time, the conveying roller 6 is driven to rotate by the output shaft of the first motor 10, so that the conveying roller 6 drives the first conveyor belt 5 to rotate clockwise by friction transmission, and the aluminum powder on the top surface of the first conveyor belt 5 is moved from left to right. During the movement, the output shaft of the first cylinder 13 pushes the T-shaped push block 12 to slide along the sorting box 4 and the sealing block 11, and the distance between the lower end of the T-shaped push block 12 and the top surface of the first conveyor belt 5 is adjusted. The aluminum powder in the conveying process is flattened by the T-shaped push block 12, and the flattened aluminum powder continues to move to the right for transportation;

[0063] At the same time, the first conveyor belt 5 is frictionally driven to the eddy current separation magnetic roller 7 to rotate synchronously. The eddy current separation magnetic roller 7 induces eddy current inside the aluminum powder through the high-frequency alternating magnetic field, and utilizes the repulsive force of the eddy current and the original magnetic field to make the aluminum powder jump forward along its conveying direction and move to the separation and discharge block 18 for conveying. At this time, impurities in the aluminum powder remain on the outer wall of the first conveyor belt 5. With the rotation of the first conveyor belt 5, the impurities in the aluminum powder pass through the gap between the separation and discharge block 18 and the first conveyor belt 5 and fall into the discharge pipe 19 and are discharged to the outside. Through the sliding contact between the discharge pipe 19 and the outer wall of the first conveyor belt 5, the impurities attached to the first conveyor belt 5 are scraped off and slide into the discharge pipe 19, and the aluminum powder and impurities are sorted, thereby realizing continuous and stable transportation of aluminum powder, ensuring the smooth progress of the sorting process, realizing the rapid separation of aluminum powder and impurities, improving the sorting efficiency, reducing the residual impurities, improving the purity and quality of aluminum powder, and improving the flexibility and adaptability of the equipment;

[0064] The design of the T-shaped push block 12 effectively flattens the aluminum powder during the conveying process, avoiding the problems of aluminum powder accumulation and uneven dispersion, so that the aluminum powder can pass through the eddy current separation magnetic roller 7 evenly and consistently, thereby improving the accuracy and reliability of separation.

[0065] Embodiment 3

[0066] like Figure 1 , Figure 2 , Figure 6, Figure 7 , Figure 8 and Fig. 9 As shown, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that the second conveying assembly 8 includes a soft magnetic conveying belt 801, and the soft magnetic conveying belt 801 has two driving rollers 802 with a symmetrical structure for friction transmission. The driving roller 802 has two brackets 803 that are symmetrically connected for rotation. One of the driving rollers 802 and the soft magnetic conveying belt 801 is slidably connected to the sealing block 11, and the rear wall of the sorting box 4 is provided with a discharge guide plate 804, which is located below one side of the soft magnetic conveying belt 801, and the bracket 803 located at the rear end is provided with a discharge guide plate 804. The discharge guide plate 804 is located below one side of the soft magnetic conveying belt 801, and the bracket 803 located at the rear end is provided with a discharge guide plate 804. The bottom surface is fixedly connected with a connection block 805, a second scraper 806 is installed between the two connection blocks 805, the top surface of the second scraper 806 is slidably connected with the outer wall of the soft magnetic conveyor belt 801, and one of the transmission rollers 802 passes through one of the brackets 803 and extends to the outside; the adsorbed magnetic material moves to the second scraper 806 along with the soft magnetic conveyor belt 801, and the magnetic material on the outer wall of the lower end of the soft magnetic conveyor belt 801 is scraped and separated by the second scraper 806, and the separated magnetic material falls into the inside of the discharge guide plate 804 and is discharged to the outside for collection.

[0067] A universal joint 14 is coaxially connected to the transmission roller 802 extending to the outside, and a rotating shaft 15 is coaxially connected to the other end of the universal joint 14. A support 16 is rotatably connected to the rotating shaft 15, and the support 16 is fixedly connected to the rear wall of the sorting box 4. A bevel gear 17 is sleeved on the outer peripheral wall of the other end of the rotating shaft 15 and the outer peripheral wall of the conveying roller 6 extending to the outside, and the two bevel gears 17 are meshed with each other; the output shaft of the first motor 10 drives the conveying roller 6 to rotate while rotating one of the bevel gears 17, and meshes and transmits to the other bevel gear 17 to rotate synchronously, driving the rotating shaft 15 and the universal joint 14 to rotate synchronously, so that one of the transmission rollers 802 rotates along the bracket 803, so that the inner wall of the soft magnetic conveyor belt 801 is in frictional contact with the outer wall of the transmission roller 802, driving the soft magnetic conveyor belt 801 to rotate counterclockwise.

[0068] During impurity removal, during the process of aluminum powder being transported on the first conveyor belt 5, the output shaft of the first motor 10 drives the conveyor roller 6 to rotate while causing one of the bevel gears 17 to rotate. At this time, one of the bevel gears 17 is meshed and transmitted to the other bevel gear 17 to rotate synchronously, driving the rotating shaft 15 to rotate along the support 16, causing one end of the universal joint 14 to rotate synchronously, driving the other end of the universal joint 14 to rotate synchronously, and the universal joint 14 drives one of the transmission rollers 802 to rotate along the bracket 803, causing the inner wall of the soft magnetic conveyor belt 801 to frictionally contact with the outer wall of the transmission roller 802, driving the soft magnetic conveyor belt 801 to rotate counterclockwise. During the rotation process, the soft magnetic conveyor belt 801 adsorbs magnetic materials such as iron impurities in the aluminum powder on the top surface of the first conveyor belt 5;

[0069] The adsorbed magnetic material moves along the soft magnetic conveyor belt 801 to the second scraper 806, and the magnetic material on the outer wall of the lower end of the soft magnetic conveyor belt 801 is scraped and separated by the second scraper 806. The separated magnetic material falls into the discharge guide plate 804 and is discharged to the outside for collection. The magnetic materials such as iron impurities in the aluminum powder are effectively adsorbed and removed, and the impurity removal efficiency is improved. The magnetic material is scraped off the soft magnetic conveyor belt 801 by the second scraper 806, which ensures the accuracy and reliability of impurity removal, thereby improving the purity and quality of the aluminum powder and reducing the wear and damage of these impurities to the equipment.

[0070] Embodiment 4

[0071] like Figure 1 , Figure 2 , Fig.10 ,~ Fig.15 As shown, this embodiment is based on the previous embodiment, and is different from the previous embodiment in that the grading component 9 includes a spring seat 902, the bottom surface of the spring seat 902 is fixedly connected to the top surface of the base 1, the spring seat 902 is provided with a plurality of spring seats in an annular array structure, and a plurality of fine mesh screens 901 are provided. The bottom surface of the fine mesh screen 901 at the lower end is fixedly connected to the top surface of the spring seat 902, and the bottom surface of the fine mesh screen 901 at the lower end is symmetrically installed with two vibration motors 903 through a mounting seat, and a rotating rod 904 is rotatably connected to the middle of the bottom surface of the fine mesh screen 901 at the lower end, and a plurality of sleeves 905 are sleeved on the rotating rod 904, and a cleaning block 906 is fixedly connected to the sleeve 905, and the bottom surface of the cleaning block 906 is connected to the inner surface of the fine mesh screen 901. The top surface of the sleeve 905 is slidably connected, a fastening wheel 907 is threadedly connected to the sleeve 905 through a threaded hole, the threaded end of the fastening wheel 907 is threadedly connected to the outer wall of the rotating rod 904, the lower end of the rotating rod 904 passes through the fine mesh screen 901 at the lower end and extends to the outer wall, and a servo motor 908 is installed on the bottom surface of the fine mesh screen 901 at the lower end through a mounting seat, and the output shaft of the servo motor 908 is coaxially connected to the rotating rod 904 extending to the outside; the rotating rod 904 and the sleeve 905 are driven to rotate by the output shaft of the servo motor 908, so that the sleeve 905 drives the cleaning block 906 to scrape off the aluminum powder accumulated and stuck on the fine mesh screen 901, ensuring that the fine mesh screen 901 always maintains good screening performance, thereby improving the efficiency and accuracy of screening.

[0072] The fine mesh screen 901 is connected to a discharge pipe 909, a groove 910 is provided on the discharge pipe 909, a discharge block 911 is inserted inside the groove 910, an electric push rod 912 is installed on the top surface of the discharge pipe 909 through a mounting seat, the piston rod of the electric push rod 912 is fixedly connected to the upper end of the discharge block 911, two adjacent fine mesh screens 901 are fixedly connected by a buckle 913, a circular groove 914 is provided on the bottom surface of the fine mesh screen 901, a circular protrusion 915 is fixedly connected to the top surface of the fine mesh screen 901, and two adjacent circular protrusions 915 are snap-fitted with the circular groove 914; the vibration motor 903 drives multiple fine mesh screens 901 to vibrate simultaneously, the aluminum powder is graded and screened, and the aluminum powder of suitable size is discharged from different discharge pipes 909 to the outside for collection.

[0073] During grading, a fine mesh screen 901 with a suitable aperture is selected for grading, and the annular protrusions 915 of two adjacent fine mesh screens 901 are snapped into the annular slots 914, and fixedly installed by means of buckles 913, and installed to a suitable number of fine mesh screens 901, so that the apertures of the plurality of fine mesh screens 901 are successively reduced from top to bottom, and the sorted aluminum powder is transported to the interior of the fine mesh screen 901 at the upper end through the sorting discharge block 18, and the plurality of fine mesh screens 901 are driven to vibrate simultaneously by the vibration motor 903, so as to grade and screen the aluminum powder, and separate the aluminum powder of suitable size from different The material is discharged from the discharge pipe 909 to the outside for collection. When discharging, the piston rod of the electric push rod 912 pushes the discharge block 911 to slide along the discharge pipe 909 through the groove 910. After sliding to a suitable position, the material inside the fine mesh screen 901 is discharged. Fine mesh screens 901 with different apertures are selected for combination according to needs, and the configuration of the fine mesh screen 901 is flexibly adjusted to adapt to the classification of aluminum powder with different particle size requirements, thereby avoiding waste and mixing of materials, improving the accuracy of classification and screening, reducing the generation of impurities and unqualified products, and reducing the difficulty and cost of subsequent processing;

[0074] While installing the fine mesh screen 901, the fine mesh screen 901 is inserted into the rotating rod 904. After the installation of the fine mesh screen 901 is completed, the sleeve 905 is inserted into the rotating rod 904 and fixed by the fastening wheel 907, so that the fine mesh screen 901 can vibrate and screen while the rotating rod 904 and the sleeve 905 are driven to rotate by the output shaft of the servo motor 908, so that the sleeve 905 drives the cleaning block 906 to scrape off the aluminum powder accumulated and stuck on the fine mesh screen 901, ensuring that the fine mesh screen 901 always maintains good screening performance, improving the efficiency and accuracy of screening, ensuring the continuity of screening, helping to ensure that the aluminum powder is graded according to the predetermined particle size distribution, improving the quality and consistency of the product, and because the fine mesh screen 901 is not easy to be blocked or damaged, the frequency of replacing the fine mesh screen 901 is reduced, further reducing the production cost.

[0075] Working principle: During crushing, the aluminum powder material to be crushed and classified is first transported to the inside of the feed hopper 202, and slides downward through the inclined part of the rolling baffle 204 and the top surface of the drainage block 205, so that the aluminum powder material moves downward along the rolling baffle 204 and the drainage block 205. During the movement, one of the eccentric rollers 207 is driven to rotate by the output shaft of the second motor 216, so that one of the first pulleys 209 rotates synchronously, and one of the first pulleys 209 is frictionally transmitted to the other first pulley 209 and the second pulley 210 through the belt 211, and the two eccentric rollers 207 and the rolling roller 208 rotate synchronously at this time, so that the gap between the eccentric roller 207 and the rolling baffle 204 is adjusted while the gap changes, and the aluminum powder material falling in the gap is squeezed and crushed as the gap changes, and the larger particles in the aluminum powder material are crushed by the two eccentric rollers 207;

[0076] The aluminum powder material is further crushed by the crushing roller 208 to complete the preliminary crushing operation. The crushed aluminum powder material enters the ball mill body 3 for grinding treatment, achieving efficient crushing of the aluminum powder material. The rotation and gap adjustment of the eccentric roller 207 accurately control the crushing force, ensuring that the aluminum powder material is evenly and effectively processed during the crushing process. The further crushing operation of the crushing roller 208 further refines the aluminum powder material that has been initially crushed, improves the crushing efficiency, and achieves effective crushing of aluminum powder materials of different particle sizes, ensuring that the aluminum powder material is fully squeezed and crushed during the crushing process, reducing the residue of large-sized particles, and laying a good foundation for subsequent screening and grinding operations;

[0077] During the crushing process, the two first scrapers 213 are respectively plugged into the feed pipe 201 through the slots 212, and the hand wheel 215 is adjusted to penetrate the positioning block 214 and threadedly connected to the feed pipe 201. After the first scrapers 213 are installed, the aluminum powder attached to the eccentric roller 207 during the extrusion and crushing is scraped off by the first scrapers 213 to prevent the aluminum powder from accumulating on the eccentric roller 207 to form agglomerates, thereby keeping the surface of the eccentric roller 207 clean and the crushing effect continuous and stable. This helps to maintain a high level of crushing efficiency, ensure that the aluminum powder material can be crushed evenly and effectively, reduce equipment wear, and extend the service life of the equipment.

[0078] During sorting, the ground aluminum powder is discharged from the inside of the ball mill body 3 to the top surface of the first conveyor belt 5 of the sorting box 4. At this time, the conveying roller 6 is driven to rotate by the output shaft of the first motor 10, so that the conveying roller 6 drives the first conveyor belt 5 to rotate clockwise by friction transmission, and the aluminum powder on the top surface of the first conveyor belt 5 is moved from left to right. During the movement, the output shaft of the first cylinder 13 pushes the T-shaped push block 12 to slide along the sorting box 4 and the sealing block 11, and the distance between the lower end of the T-shaped push block 12 and the top surface of the first conveyor belt 5 is adjusted. The aluminum powder in the conveying process is flattened by the T-shaped push block 12, and the flattened aluminum powder continues to move to the right for transportation;

[0079] At the same time, the first conveyor belt 5 is frictionally driven to the eddy current separation magnetic roller 7 to rotate synchronously. The eddy current separation magnetic roller 7 induces eddy current inside the aluminum powder through the high-frequency alternating magnetic field, and utilizes the repulsive force of the eddy current and the original magnetic field to make the aluminum powder jump forward along its conveying direction and move to the separation and discharge block 18 for conveying. At this time, impurities in the aluminum powder remain on the outer wall of the first conveyor belt 5. With the rotation of the first conveyor belt 5, the impurities in the aluminum powder pass through the gap between the separation and discharge block 18 and the first conveyor belt 5 and fall into the discharge pipe 19 and are discharged to the outside. Through the sliding contact between the discharge pipe 19 and the outer wall of the first conveyor belt 5, the impurities attached to the first conveyor belt 5 are scraped off and slide into the discharge pipe 19, and the aluminum powder and impurities are sorted, thereby realizing continuous and stable transportation of aluminum powder, ensuring the smooth progress of the sorting process, realizing the rapid separation of aluminum powder and impurities, improving the sorting efficiency, reducing the residual impurities, improving the purity and quality of aluminum powder, and improving the flexibility and adaptability of the equipment;

[0080] The design of the T-shaped push block 12 effectively flattens the aluminum powder during the conveying process, avoiding the problems of aluminum powder accumulation and uneven dispersion, so that the aluminum powder can pass through the eddy current separation magnetic roller 7 evenly and consistently, thereby improving the accuracy and reliability of separation.

[0081] During impurity removal, during the process of aluminum powder being transported on the first conveyor belt 5, the output shaft of the first motor 10 drives the conveyor roller 6 to rotate while causing one of the bevel gears 17 to rotate. At this time, one of the bevel gears 17 is meshed and transmitted to the other bevel gear 17 to rotate synchronously, driving the rotating shaft 15 to rotate along the support 16, causing one end of the universal joint 14 to rotate synchronously, driving the other end of the universal joint 14 to rotate synchronously, and the universal joint 14 drives one of the transmission rollers 802 to rotate along the bracket 803, causing the inner wall of the soft magnetic conveyor belt 801 to frictionally contact with the outer wall of the transmission roller 802, driving the soft magnetic conveyor belt 801 to rotate counterclockwise. During the rotation process, the soft magnetic conveyor belt 801 adsorbs magnetic materials such as iron impurities in the aluminum powder on the top surface of the first conveyor belt 5;

[0082] The adsorbed magnetic material moves along the soft magnetic conveyor belt 801 to the second scraper 806, and the magnetic material on the outer wall of the lower end of the soft magnetic conveyor belt 801 is scraped and separated by the second scraper 806. The separated magnetic material falls into the discharge guide plate 804 and is discharged to the outside for collection. The magnetic materials such as iron impurities in the aluminum powder are effectively adsorbed and removed, and the impurity removal efficiency is improved. The magnetic material is scraped off the soft magnetic conveyor belt 801 by the second scraper 806, which ensures the accuracy and reliability of impurity removal, thereby improving the purity and quality of the aluminum powder and reducing the wear and damage of these impurities to the equipment.

[0083] During grading, a fine mesh screen 901 with a suitable aperture is selected for grading, and the annular protrusions 915 of two adjacent fine mesh screens 901 are snapped into the annular slots 914, and fixedly installed by means of buckles 913, and installed to a suitable number of fine mesh screens 901, so that the apertures of the plurality of fine mesh screens 901 are successively reduced from top to bottom, and the sorted aluminum powder is transported to the interior of the fine mesh screen 901 at the upper end through the sorting discharge block 18, and the plurality of fine mesh screens 901 are driven to vibrate simultaneously by the vibration motor 903, so as to grade and screen the aluminum powder, and separate the aluminum powder of suitable size from different The material is discharged from the discharge pipe 909 to the outside for collection. When discharging, the piston rod of the electric push rod 912 pushes the discharge block 911 to slide along the discharge pipe 909 through the groove 910. After sliding to a suitable position, the material inside the fine mesh screen 901 is discharged. Fine mesh screens 901 with different apertures are selected for combination according to needs, and the configuration of the fine mesh screen 901 is flexibly adjusted to adapt to the classification of aluminum powder with different particle size requirements, thereby avoiding waste and mixing of materials, improving the accuracy of classification and screening, reducing the generation of impurities and unqualified products, and reducing the difficulty and cost of subsequent processing;

[0084] Before grading and screening, while installing the fine mesh screen 901, the fine mesh screen 901 is inserted into the rotating rod 904. After the installation of the fine mesh screen 901 is completed, the sleeve 905 is inserted into the rotating rod 904 and fixed by the fastening wheel 907, so that the fine mesh screen 901 can vibrate and screen while the rotating rod 904 and the sleeve 905 are driven to rotate by the output shaft of the servo motor 908, so that the sleeve 905 drives the cleaning block 906 to scrape off the aluminum powder accumulated and stuck on the fine mesh screen 901, ensuring that the fine mesh screen 901 always maintains good screening performance, improving the efficiency and accuracy of screening, ensuring the continuity of screening, helping to ensure that the aluminum powder is graded according to the predetermined particle size distribution, improving the quality and consistency of the product, and because the fine mesh screen 901 is not easy to be blocked or damaged, the frequency of replacing the fine mesh screen 901 is reduced, further reducing the production cost.

[0085] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A crushing and grading device for aluminum powder production, comprising a base (1), characterized in that: A feed processing assembly (2) is provided at the left end of the top surface of the base (1), a feed pipe (201) is provided on the feed processing assembly (2), a feed hopper (202) is fixedly connected to the top surface of the feed pipe (201), a ball mill body (3) is connected to the lower end of the feed pipe (201), a sorting box (4) is provided at the middle of the top surface of the base (1), one end of the ball mill body (3) is mounted on the sorting box (4), a first conveyor belt (5) is provided inside the sorting box (4), a conveyor roller (6) is frictionally contacted on one side of the first conveyor belt (5), and one end of the conveyor roller (6) passes through the inner wall of the sorting box (4) and extends to the outside; A first motor (10) is installed on the rear wall of the sorting box (4) via a mounting seat, the output shaft of the first motor (10) is coaxially connected to the conveying roller (6), the other side of the first conveying belt (5) is in frictional contact with an eddy current sorting magnetic roller (7), the upper end of the sorting box (4) is provided with a second conveying assembly (8), the top surface of the sorting box (4) is fixedly connected to a sealing block (11), the bottom surface of one end of the sealing block (11) is slidably connected to the outer wall of the first conveying belt (5), and the output end of the ball mill body (3) passes through the sealing block (11) The top surface extends to the inside, a sorting material block (18) is installed at the right end of the sorting box (4), a discharge pipe (19) is provided at the lower side of the sorting material block (18), the upper end outer wall of the discharge pipe (19) is slidably connected to the outer wall of the first conveyor belt (5), one end of the sorting material block (18) is gap-matched with the outer wall of the first conveyor belt (5), the sorting material block (18) is in an inclined structure, a grading component (9) is provided on the right side of the sorting box (4), and a plurality of fine mesh screens (901) are provided on the grading component (9); The bottom surface of the feed pipe (201) is mounted with a support frame (203) via a mounting seat, one end of the ball mill body (3) is mounted on the support frame (203), a rolling baffle (204) is provided on one side of the inner wall of the feed pipe (201), and a drainage block (205) is fixedly connected to the other side of the inner wall of the feed pipe (201), the top surfaces of the rolling baffle (204) and the drainage block (205) are both inclined, a plurality of arc grooves (206) are provided on the side wall of the drainage block (205), two eccentric rollers (207) are provided inside the two arc grooves (206) at the upper end, and a rolling roller (208) is provided inside the arc groove (206) at the lower end, and the outer peripheral walls of both ends of the eccentric rollers (207) and the rolling roller (208) are rotatably connected to the feed pipe (201); One end of the eccentric roller (207) and the rolling roller (208) passes through the feed pipe (201) and extends to the outside; a first pulley (209) is sleeved on one of the eccentric rollers (207) extending to the outside; a second pulley (210) is sleeved on the other eccentric roller (207) and the rolling roller (208) extending to the outside; the diameter of the first pulley (209) is greater than the diameter of the second pulley (210); the two second pulleys (210) and the first pulley (209) are frictionally driven by belts (211); a second motor (216) is installed on the rear wall of the feed pipe (201) via a mounting seat; the output shaft of the second motor (216) is coaxially connected to the eccentric roller (207) at the upper end; The drainage block (205) is provided with two slots (212), the slots (212) extending to one end of the feed pipe (201), a first scraper (213) is inserted into the slot (212), one end of the first scraper (213) extends to the outside of the feed pipe (201), a positioning block (214) is fixedly connected to the first scraper (213) extending to the outside, an adjusting hand wheel (215) is inserted into the positioning block (214) via a through hole, and the outer wall of the feed pipe (201) is threadedly connected to the threaded end of the adjusting hand wheel (215) via a threaded hole.

2. The pulverizing and classifying device for aluminum powder production according to claim 1, characterized in that: The top surface of the sealing block (11) is slidably connected to a T-shaped push block (12), both ends of the T-shaped push block (12) are slidably connected to the sorting box (4), a first cylinder (13) is installed in the middle of the top surface of the sealing block (11) through a mounting seat, the top surface of the piston rod of the first cylinder (13) is fixedly connected to the upper end of the T-shaped push block (12), and the bottom surface of the T-shaped push block (12) is clearance-matched with the top surface of the first conveyor belt (5).

3. The pulverizing and classifying device for aluminum powder production according to claim 2, characterized in that: The second conveying assembly (8) comprises a soft magnetic conveying belt (801), the soft magnetic conveying belt (801) has two driving rollers (802) in a symmetrical structure for friction transmission inside, the driving rollers (802) are symmetrically structured and rotatably connected to two brackets (803), one of the driving rollers (802) and the soft magnetic conveying belt (801) are both slidably connected to the sealing block (11), the rear wall of the sorting box (4) is provided with a discharge guide plate (804), the discharge guide plate (804) is located below one side of the soft magnetic conveying belt (801), a connecting block (805) is fixedly connected to the bottom surface of the bracket (803) located at the rear end, a second scraper (806) is installed between the two connecting blocks (805), the top surface of the second scraper (806) is slidably connected to the outer wall of the soft magnetic conveying belt (801), and one of the driving rollers (802) passes through one of the brackets (803) and extends to the outside.

4. The pulverizing and classifying device for aluminum powder production according to claim 3, characterized in that: The transmission roller (802) extending to the outside is coaxially connected to a universal joint (14), the other end of the universal joint (14) is coaxially connected to a rotating shaft (15), the rotating shaft (15) is rotatably connected to a support (16), the support (16) is fixedly connected to the rear wall of the sorting box (4), and the outer peripheral wall of the other end of the rotating shaft (15) and the outer peripheral wall of the conveying roller (6) extending to the outside are both sleeved with bevel gears (17), and the two bevel gears (17) are meshed with each other.

5. The pulverizing and classifying device for aluminum powder production according to claim 4, characterized in that: The grading assembly (9) comprises a spring seat (902), the bottom surface of the spring seat (902) being fixedly connected to the top surface of the base (1), the spring seats (902) being provided in a plurality in a ring array structure, the fine mesh screens (901) being provided in plurality, the bottom surface of the fine mesh screen (901) at the lower end being fixedly connected to the top surface of the spring seat (902), the bottom surface of the fine mesh screen (901) at the lower end being symmetrically mounted with two vibration motors (903) via a mounting seat, the middle portion of the bottom surface of the fine mesh screen (901) at the lower end being rotatably connected to a rotating rod (904), the rotating rod (904) being sleeved with a plurality of sleeves (905), A cleaning block (906) is fixedly connected to the sleeve (905), and the bottom surface of the cleaning block (906) is slidably connected to the inner top surface of the fine-mesh screen (901). A fastening wheel (907) is threadedly connected to the sleeve (905) through a threaded hole, and the threaded end of the fastening wheel (907) is threadedly connected to the outer wall of the rotating rod (904). The lower end of the rotating rod (904) passes through the fine-mesh screen (901) located at the lower end and extends to the outer wall. A servo motor (908) is installed on the bottom surface of the fine-mesh screen (901) located at the lower end through a mounting seat, and the output shaft of the servo motor (908) is coaxially connected to the rotating rod (904) extending to the outside.

6. The pulverizing and classifying device for aluminum powder production according to claim 5, characterized in that: The fine mesh screen (901) is connected to a discharge pipe (909), a groove (910) is provided on the discharge pipe (909), a discharge block (911) is inserted into the groove (910), an electric push rod (912) is installed on the top surface of the discharge pipe (909) through a mounting seat, the piston rod of the electric push rod (912) is fixedly connected to the upper end of the discharge block (911), two adjacent fine mesh screens (901) are fixedly connected by a buckle (913), a circular groove (914) is provided on the bottom surface of the fine mesh screen (901), a circular protrusion (915) is fixedly connected to the top surface of the fine mesh screen (901), and two adjacent circular protrusions (915) are snap-fitted with the circular groove (914).

7. A method for using a crushing and classifying device for aluminum powder production, characterized in that: Using the pulverizing and classifying device for aluminum powder production as described in claim 6, The following steps are involved: Crushing: First, the aluminum powder material to be crushed and classified is transported to the inside of the feed hopper (202), and slides downward through the inclined portion of the top surface of the rolling baffle (204) and the drainage block (205), so that the aluminum powder material moves downward between the rolling baffle (204) and the drainage block (205). During the movement, the output shaft of the second motor (216) drives one of the eccentric rollers (207) to rotate, so that one of the first pulleys (209) rotates synchronously, and one of the first pulleys (209) is frictionally transmitted to the other first pulley (209) through the belt (211). and the second pulley (210), and the two eccentric rollers (207) and the rolling roller (208) rotate synchronously, so that the gap between the eccentric roller (207) and the rolling baffle (204) is adjusted while the eccentric roller (207) rotates, and the aluminum powder material falling in the gap is squeezed and crushed as the gap changes, and the larger particles in the aluminum powder material are crushed by the two eccentric rollers (207), and then further crushed by the rolling roller (208), completing the preliminary crushing operation of the aluminum powder material, and the crushed aluminum powder material enters the ball mill body (3) for grinding. During the crushing process, the two first scrapers (213) are respectively plugged into the feed pipe (201) through the slots (212), and the positioning block (214) is threadedly connected to the feed pipe (201) through the adjusting hand wheel (215). After the first scrapers (213) are installed, the aluminum powder attached to the eccentric roller (207) during the extrusion and crushing is scraped off by the first scrapers (213); Sorting: The ground aluminum powder is discharged from the inside of the ball mill body (3) to the top surface of the first conveyor belt (5) of the sorting box (4). At this time, the conveying roller (6) is driven to rotate by the output shaft of the first motor (10), so that the conveying roller (6) drives the first conveyor belt (5) to rotate clockwise by friction transmission, and the aluminum powder on the top surface of the first conveyor belt (5) is moved from left to right. During the movement, the output shaft of the first cylinder (13) pushes the T-shaped push block (12) to slide along the sorting box (4) and the sealing block (11), and the distance between the lower end of the T-shaped push block (12) and the top surface of the first conveyor belt (5) is adjusted. The aluminum powder in the conveying process is flattened by the T-shaped push block (12). The flattened aluminum powder continues to move to the right for transportation. At the same time, the first conveyor belt (5) is frictionally transmitted to the eddy current The separation magnetic roller (7) rotates synchronously, and the eddy current separation magnetic roller (7) induces eddy current inside the aluminum powder through a high-frequency alternating magnetic field. The repulsive force between the eddy current and the original magnetic field is used to make the aluminum powder jump forward along its conveying direction and move to the inside of the separation material block (18) for conveying. At this time, impurities in the aluminum powder remain on the outer wall of the first conveyor belt (5). As the first conveyor belt (5) rotates, the impurities in the aluminum powder pass through the gap between the separation material block (18) and the first conveyor belt (5) and fall into the inside of the discharge pipe (19) and are discharged to the outside. Through the sliding contact between the discharge pipe (19) and the outer wall of the first conveyor belt (5), the impurities attached to the first conveyor belt (5) are scraped off and slide into the inside of the discharge pipe (19), and the aluminum powder and the impurities are separated and processed; Impurity removal: During the process of conveying aluminum powder on the first conveyor belt (5), the output shaft of the first motor (10) drives the conveying roller (6) to rotate while causing one of the bevel gears (17) to rotate. At this time, one of the bevel gears (17) meshes with the other bevel gear (17) to rotate synchronously, driving the rotating shaft (15) to rotate along the support (16), causing one end of the universal joint (14) to rotate synchronously, driving the other end of the universal joint (14) to rotate synchronously, and the universal joint (14) drives one of the transmission rollers (802) to rotate along the bracket (803), causing the soft magnetic conveyor belt (802) to rotate synchronously. 01) The inner wall is in frictional contact with the outer wall of the driving roller (802), driving the soft magnetic conveyor belt (801) to rotate counterclockwise. During the rotation of the soft magnetic conveyor belt (801), the magnetic materials such as iron impurities in the aluminum powder on the top surface of the first conveyor belt (5) are adsorbed. The adsorbed magnetic materials move along with the soft magnetic conveyor belt (801) to the second scraper (806). The magnetic materials on the outer wall of the lower end of the soft magnetic conveyor belt (801) are scraped and separated by the second scraper (806). The separated magnetic materials fall into the inside of the discharge guide plate (804) and are discharged to the outside for collection. Classification: Select fine mesh screens (901) with appropriate apertures for classification, and engage the annular protrusions (915) of two adjacent fine mesh screens (901) with the annular grooves (914), and fix them with buckles (913). Install them to an appropriate number of fine mesh screens (901), so that the apertures of the multiple fine mesh screens (901) decrease from top to bottom, and transport the sorted aluminum powder to the fine mesh screen (901) at the upper end through the sorting material block (18). 901), a plurality of fine-mesh screens (901) are driven to vibrate simultaneously by a vibration motor (903) to grade and screen the aluminum powder, and aluminum powder of suitable size is discharged from different discharge pipes (909) to the outside for collection. When discharging, a discharge block (911) is pushed by a piston rod of an electric push rod (912) to slide along the discharge pipe (909) through a groove (910), and the material inside the fine-mesh screen (901) is discharged after sliding to a suitable position; While installing the fine mesh screen (901), the fine mesh screen (901) is inserted into the rotating rod (904). After the installation of the fine mesh screen (901) is completed, the sleeve (905) is inserted into the rotating rod (904) and fixed by a fastening wheel (907). When the fine mesh screen (901) is vibrated and screened, the output shaft of the servo motor (908) drives the rotating rod (904) and the sleeve (905) to rotate, so that the sleeve (905) drives the cleaning block (906) to scrape off the aluminum powder accumulated and stuck on the fine mesh screen (901).

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