A spherical micro-powder processing screening demagnetizing device

Abstract

The application discloses a kind of spherical micro powder processing with screening demagnetizing device, it is related to the technical field of micro powder screening demagnetization, including screening box, blowing equipment, air extraction equipment and filter piece;The demagnetizing element is installed on the screening box;The top of the screening box is equipped with main feed box;Suction hood can extract spherical micro powder conveyed by blowing equipment and introduce into guide box through feed pipe;By setting screening box, demagnetizing element and main feed box, spherical micro powder is screened and demagnetized, blowing equipment, air extraction equipment, guide box and filter piece, the accumulated spherical micro powder is transported and re-screened and demagnetized, moving part, knocking bar, first moving bar, first moving gear, second moving bar, first moving rack, return spring, second moving gear and second moving rack cooperate to vibrate and clean filter piece, extend the service life of filter piece, manual cleaning is not needed, improve the screening demagnetization efficiency of spherical micro powder.

Description

Technical Field

[0001] This invention belongs to the field of micro powder screening and demagnetization technology, specifically a screening and demagnetization device for spherical micro powder processing. Background Technology

[0002] Spherical micropowder is a micron-sized inorganic non-metallic material with a regular spherical particle morphology. Its core component is silicon dioxide. It is usually prepared by physical or chemical methods and has the characteristics of high sphericity, low impurity content, excellent flowability and filling properties. It is widely used in many high-end fields such as electronics, optics, ceramics, and coatings. During the production of spherical micropowder, it may contain ferromagnetic impurities. To improve the purity of spherical micropowder, it is necessary to remove the ferromagnetic impurities. Therefore, a sieving and demagnetizing device for processing spherical micropowder is needed.

[0003] Existing sieving and demagnetizing devices for spherical micropowder processing typically use multi-layered magnetic rods to directly adsorb ferromagnetic impurities from the micropowder. The spherical structure of the micropowder gives it high surface energy and strong adhesion, making it easily adsorbed onto the magnetic rod surface. Furthermore, the point contact method of the circular magnetic rods increases the internal friction between materials, easily forming bridging. Therefore, when removing ferromagnetic impurities from batches of spherical micropowder, the micropowder tends to accumulate at the top of the magnetic rods within the device, requiring manual cleaning. This reduces the sieving and demagnetizing efficiency of the spherical micropowder and diminishes the effectiveness of the device, failing to meet user needs. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art; to this end, the present invention proposes a sieving and demagnetizing device for spherical micro powder processing.

[0005] A sieving and demagnetizing device for processing spherical micro powder includes a sieving box, a blowing device, an exhaust device, and a filter element. The sieving box is detachably equipped with several demagnetizing elements for sieving and demagnetizing the spherical micro powder. The blowing device is located on the upper outer surface of the sieving box and transfers the spherical micro powder accumulated on the upper inner side of the sieving box. The exhaust device conveys the spherical micro powder transferred from the main feed box to a guide box via a feed pipe. The guide box has a secondary feed box connected to the sieving box. The filter element is movably disposed inside the guide box, assisting the exhaust device in conveying the extracted spherical micro powder to the sieving box. The top of the sieving box has a main feed box for feeding the spherical micro powder. The demagnetizing elements include a mounting base detachably disposed on the outer surface of the sieving box and several magnetic rods penetrating the sieving box. The other end of the feed pipe extends into the interior of the sieving box and is equipped with an exhaust hood. The exhaust hood can extract the spherical micro powder conveyed by the blowing device and guide it into the guide box through the feed pipe.

[0006] As a further aspect of the present invention: the material guide box has a material guide cavity inside; the filter element has a connecting frame that fits into the material guide cavity on its outer side; the connecting frame has symmetrical connecting parts that fit and move in contact with the material guide box; the top of the connecting frame has a plurality of moving rods vertically arranged; the moving rods are fitted with limiting springs that are connected to the material guide box; the material guide box has a plurality of first scrapers that fit into the working surface of the filter element inside.

[0007] As a further aspect of the present invention: the guide box is provided with an air extraction pipe connected to the air extraction device; a movable part is movably provided on the side of the filter element near the air extraction pipe; both the upper and lower sides of the movable part are movably provided with striking strips that can contact the filter element; when the filter element is blocked, the moving part is subjected to increased negative pressure suction from the air extraction device, causing the moving part to control the striking strips to collide with the filter element, thereby cleaning the filter element.

[0008] As a further aspect of the present invention: both ends of the moving member are provided with a first sealing plate that fits into the material guiding cavity; the first sealing plate extends into the interior of the material guiding box through a connecting block and is provided with a first moving strip; both ends of the striking strip are provided with a second sealing plate that fits into the material guiding cavity; the second sealing plate extends into the interior of the material guiding box through a connecting block and is provided with a second moving strip that is drively connected to the first moving strip.

[0009] As a further aspect of the present invention: the first moving strip is provided with a first moving rack; the inside of the guide box is provided with a first moving gear that meshes with the first moving rack; the second moving strip is provided with a second moving rack; the inside of the guide box is provided with a second moving gear that meshes with the first moving gear and the second moving rack respectively; the diameter of the second moving gear is smaller than the diameter of the first moving gear.

[0010] As a further aspect of the present invention: the inside of the guide box is provided with a first guide rod that is guided and connected to the first moving bar; the inside of the guide box is provided with a second guide rod that is guided and connected to the second moving bar; a return spring is sleeved on both the first guide rod and the second guide rod, and a plurality of the return springs are respectively connected to the first moving bar and the second moving bar.

[0011] As a further aspect of the present invention: the upper part of the material guiding cavity has a rectangular structure; the lower part of the material guiding cavity has a circular funnel structure; a second scraper is provided in the material guiding cavity to clean the lower part; a drive motor for controlling the rotation of the second scraper is provided on the outer wall of the material guiding box; a second transmission rod extending into the material guiding cavity is provided on the output shaft of the drive motor; one end of the second transmission rod is provided with a connecting frame for controlling the operation of the second scraper through a first bevel gear structure; a connecting strip for protecting the first bevel gear structure is provided inside the material guiding cavity, the upper end of the connecting strip is set as an inclined surface and is provided with an anti-stick coating, and a sealing element that fits with the connecting strip is provided on the connecting frame to provide sealing protection.

[0012] As a further aspect of the present invention: a synchronous belt structure is provided at one end of the second transmission rod near the drive motor. The synchronous belt structure includes three synchronous pulleys and a synchronous belt that synchronously drives the three synchronous pulleys, and the three synchronous pulleys are arranged in an isosceles triangle. A first transmission rod is symmetrically provided on the synchronous belt structure. The first transmission rod is coaxially connected to the lower synchronous pulley, and both first transmission rods are offset from the guide cavity. A lifting gear is coaxially provided at one end of the first transmission rod. A lifting rack that meshes with the lifting gear is provided at the bottom end of the connecting member.

[0013] As a further aspect of the present invention: the interior of the guide box is provided with a circular array of sealing blocks to block the discharge port of the guide cavity; several sealing blocks cooperate to move within the discharge port of the guide cavity, thereby blocking or opening the discharge port of the guide cavity; a second rotating gear is provided on the outer side of the sealing block; the interior of the guide box is provided with a rotating ring that controls the synchronous operation of several second rotating gears; the inner wall of the rotating ring is provided with a circular array of several second rotating racks that mesh with the second rotating gears; the outer surface of the sealing block is provided with a driving rack that meshes with the second rotating gear; the interior of the guide box is provided with a limiting guide member to guide the movement of the sealing block; the outer wall of the rotating ring is provided with several rotating guide members that rotate and guide the guide box; the interior of the guide box is provided with a guide groove that matches the rotating guide members.

[0014] As a further aspect of the present invention: the second transmission rod is provided with a main gear for controlling the reciprocating rotation of the rotating ring; a driven gear is meshed directly below the main gear; a second bevel gear structure is coaxially provided on the driven gear; a first transmission gear is provided at one end of the second bevel gear structure; a second transmission gear is meshed on the outer side of the first transmission gear; a first rotating gear is coaxially provided on the second transmission gear; a first rotating rack is provided on the outer wall of the rotating ring and meshes with the first rotating gear; a plurality of rotating guide members are respectively offset from the first rotating rack.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention uses a screening box, a demagnetizing component and a main feed box to screen and demagnetize spherical micro powder. The blower, the suction device, the feed pipe, the guide box, the secondary feed box, the suction hood, the guide chamber and the filter are used to transport the accumulated spherical micro powder and screen and demagnetize it again. The connecting component, the moving component, the striking bar, the moving rod, the limiting spring, the first moving bar, the first moving gear, the second moving bar, the first guide rod, the second guide rod, the first moving rack, the reset spring, the second moving gear and the second moving rack work together to vibrate and clean the filter, extend the service life of the filter, eliminate the need for manual cleaning by the staff, improve the screening and demagnetizing efficiency of spherical micro powder and improve the use effect of the screening and demagnetizing device.

[0016] (2) The present invention uses a drive motor and a guide chamber, in conjunction with a lifting gear, a lifting rack and a connecting piece, to control the first scraper to clean the spherical powder adhering to the filter. The second transmission rod, the first bevel gear structure, the sealing piece, the connecting frame and the second scraper are used to clean the spherical powder in the guide chamber, avoiding the accumulation of spherical powder. The main gear, the driven gear, the second bevel gear structure, the first transmission gear, the second transmission gear, the first rotating gear, the first rotating rack, the limiting guide piece, the rotating guide piece, the second rotating rack, the second rotating gear, the sealing block and the driving rack can block or open the guide chamber, making it easier for the air extraction equipment to extract the spherical powder. It also works in conjunction with the synchronous belt structure to clean the filter, improve the screening and demagnetization efficiency of the spherical powder and improve the performance of the screening and demagnetization device. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the present invention.

[0018] Figure 2 This is a cross-sectional view of the main feed box and the guide box in this invention.

[0019] Figure 3 This is a partial structural diagram of the air extraction device and air suction hood in this invention.

[0020] Figure 4 This is a partial structural diagram of the filter element and the moving element in this invention.

[0021] Figure 5 This is a partial structural diagram of the filter element and the first scraper element in this invention.

[0022] Figure 6 This is a partial structural diagram of the synchronous belt structure and lifting gear in this invention.

[0023] Figure 7 This is a partial structural diagram of the drive motor and the second scraper in this invention.

[0024] Figure 8 This is a partial structural diagram of the moving part and the striking bar in this invention.

[0025] Figure 9 This is a partial structural diagram of the first and second moving bars in this invention.

[0026] Figure 10 This is a partial structural diagram of the main gear and the sealing block in this invention.

[0027] In the diagram: 1. Screening box; 2. Demagnetizing component; 3. Main feed box; 4. Blowing device; 5. Suction device; 6. Feed pipe; 7. Guide box; 8. Secondary feed box; 9. Suction hood; 10. Guide chamber; 11. Filter element; 12. Drive motor; 13. Connecting component; 14. Moving component; 15. Striking bar; 16. Connecting frame; 17. Moving rod; 18. Limiting spring; 19. First sealing plate; 20. Synchronous belt structure; 21. Lifting gear; 22. Lifting rack; 23. Connecting bar; 24. Main gear; 25. Rotating ring; 26. First scraper; 27. First transmission rod; 28. Second transmission rod; 29. ​​First bevel gear structure; 30. Sealing component; 31. Connecting... 32. Second scraper; 33. Second sealing plate; 34. First moving bar; 35. Connecting block; 36. First moving gear; 37. Second moving bar; 38. First guide rod; 39. Second guide rod; 40. First moving rack; 41. Return spring; 42. Second moving gear; 43. Second moving rack; 44. Follower gear; 45. Second bevel gear structure; 46. First transmission gear; 47. Second transmission gear; 48. First rotating gear; 49. First rotating rack; 50. Limiting guide; 51. Rotating guide; 52. Second rotating rack; 53. Second rotating gear; 54. Sealing block; 55. Drive rack; 56. Air extraction pipe. Detailed Implementation

[0028] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1 Please see Figures 1-9This application provides a sieving and demagnetizing device for processing spherical micro powder, including a sieving box 1, a blowing device 4, an exhaust device 5, and a filter element 11; the sieving box 1 can be detachably equipped with several demagnetizing elements 2 for sieving and demagnetizing spherical micro powder; the blowing device 4 is located on the upper outer surface of the sieving box 1 to transfer the spherical micro powder accumulated on the upper inner side of the sieving box 1; the exhaust device 5 conveys the spherical micro powder transferred by the main feed box 3 to the guide box 7 through the feed pipe 6, and the guide box 7 is provided with a secondary feed box connected to the sieving box 1. 8; The filter element 11 is movably disposed inside the guide box 7, and the auxiliary suction device 5 conveys the sucked spherical micro powder to the screening box 1; The top of the screening box 1 is provided with a main feed box 3 for feeding spherical micro powder, and the demagnetizing element 2 includes a mounting base detachably disposed on the outer surface of the screening box 1 and several magnetic rods penetrating the screening box 1; The other end of the feed pipe 6 extends into the interior of the screening box 1 and is provided with a suction hood 9, which can extract the spherical micro powder conveyed by the blowing device 4 and guide it into the guide box 7 through the feed pipe 6.

[0030] In this embodiment, spherical micro powder is conveyed into the screening box 1 through the main feed box 3, so that the spherical micro powder passes through several demagnetizing components 2 in sequence, so that the demagnetizing components 2 adsorb the magnetic particles in the spherical micro powder. The blowing device 4 is started to transfer and convey the spherical micro powder at the top to prevent the spherical micro powder from accumulating at the demagnetizing components 2. The suction device 5 is started to extract the spherical micro powder through the suction hood 9, and the extracted spherical micro powder is introduced into the guide box 7 through the feed pipe 6, and then introduced into the screening box 1 through the guide box 7.

[0031] In this invention, the material guide box 7 has a material guide cavity 10 inside; the filter element 11 has a connecting frame 16 on the outside that fits with the material guide cavity 10; the connecting frame 16 has symmetrical connecting parts 13 that fit and move with the material guide box 7; the top of the connecting frame 16 has a plurality of moving rods 17 vertically; the moving rods 17 are fitted with limiting springs 18 that are connected to the material guide box 7; the material guide box 7 has a plurality of first scrapers 26 that fit with the working surface of the filter element 11 inside, and the first scrapers 26 can clean the spherical micro powder adhering to the filter element 11.

[0032] In this embodiment, the feed pipe 6 guides the extracted spherical micro powder into the guide chamber 10 of the guide box 7, so that the filter element 11 filters the spherical micro powder to prevent it from entering the vacuum device 5. The feed pipe 6 controls the connector 13 to move upward, so that the connector 13 drives the connecting frame 16 to move, and the connecting frame 16 drives the filter element 11 to move. The first scraper 26 cleans the spherical micro powder adhering to the filter element 11. The movement of the connecting frame 16 drives the moving rod 17 to move and squeezes the limiting spring 18. When the connecting frame 16 moves to the top, the limiting spring 18 prevents the connecting frame 16 from colliding with the guide box 7 and causes the connecting frame 16 to move downward.

[0033] In this invention, the guide box 7 is provided with an exhaust pipe 56 connected to the exhaust device 5; a movable part 14 is movably provided on the side of the filter element 11 near the exhaust pipe 56; both the upper and lower sides of the movable part 14 are movably provided with striking strips 15 that can contact the filter element 11; when the filter element 11 is blocked, the moving part 14 is subjected to increased negative pressure suction from the exhaust device 5, causing the moving part 14 to control the striking strips 15 to collide with the filter element 11, thereby cleaning the filter element 11.

[0034] In this embodiment, when the filter element 11 is working normally, the suction force on the moving part 14 is less than the weight of the moving part 14, so that the moving part 14 is stationary. When spherical micro powder adheres to the filter element 11, the suction force on the moving part 14 gradually increases. When the suction force on the moving part 14 is greater than the weight of the moving part 14, the moving part 14 moves towards the suction pipe 56, and the tapping strip 15 is controlled to move towards the filter element 11, so that the tapping strip 15 taps the filter element 11 and vibrates the filter element 11 to clean the adhered spherical micro powder.

[0035] Both ends of the movable component 14 are provided with a first sealing plate 19 that fits into the guide cavity 10; the first sealing plate 19 extends into the interior of the guide box 7 through the connecting block 35 and is provided with a first moving strip 34; both ends of the striking strip 15 are provided with a second sealing plate 33 that fits into the guide cavity 10; the second sealing plate 33 extends into the interior of the guide box 7 through the connecting block 35 and is provided with a second moving strip 37 that is drively connected to the first moving strip 34.

[0036] In this embodiment, when the moving member 14 moves, it causes the first sealing plate 19 to move, the first sealing plate 19 to move, the connecting block 35 to move, the connecting block 35 to move the first moving strip 34, and when the striking strip 15 moves, it causes the second sealing plate 33 to move, and the second sealing plate 33 to move the second moving strip 37.

[0037] The first moving bar 34 is provided with a first moving rack 40; the inside of the guide box 7 is provided with a first moving gear 36 that meshes with the first moving rack 40; the second moving bar 37 is provided with a second moving rack 43; the inside of the guide box 7 is provided with a second moving gear 42 that meshes with the first moving gear 36 and the second moving rack 43 respectively; the diameter of the second moving gear 42 is smaller than the diameter of the first moving gear 36.

[0038] In this embodiment, when the first moving bar 34 moves, it causes the first moving bar 34 to drive the first moving rack 40 to move, the first moving rack 40 to drive the first moving gear 36 to rotate, the first moving gear 36 to drive the second moving gear 42 to rotate, the second moving gear 42 to drive the second moving rack 43 to move, the second moving rack 43 to drive the second moving bar 37 to move, and the second moving bar 37 to drive the striking bar 15 to move through the connecting block 35.

[0039] The guide box 7 has a first guide rod 38 inside that is guided and connected to the first moving bar 34. The first moving bar 34 has a first guide hole that matches the first guide rod 38. The guide box 7 also has a second guide rod 39 inside that is guided and connected to the second moving bar 37. The second moving bar 37 has a second guide hole that connects to the second guide rod 39. Both the first guide rod 38 and the second guide rod 39 are fitted with a return spring 41. Several return springs 41 are respectively connected to the first moving bar 34 and the second moving bar 37.

[0040] In this embodiment, when the first moving bar 34 moves, the first guide rod 38 moves in the first guide hole, and when the second moving bar 37 moves, the second moving bar 37 moves in the second guide hole, causing the first moving bar 34 and the second moving bar 37 to compress or stretch the reset spring 41. The reset spring 41 causes the first moving bar 34 and the second moving bar 37 to reset, thereby causing the second moving bar 37 to drive the striking bar 15 to vibrate and clean the filter element 11.

[0041] Example 2 Based on Example 1, referring to Figure 4 and Figures 6-7 This is the second embodiment of the present invention. In this invention, the upper part of the guiding cavity 10 has a rectangular structure; the lower part of the guiding cavity 10 has a circular funnel structure. The suction device 5 is used to guide the extracted spherical micro powder into the guiding cavity 10, so that most of the spherical micro powder is suctioned down and moves downward. The guiding cavity 10 is provided with a second scraper 32 for cleaning the lower part. The outer wall of the guiding box 7 is provided with a drive motor 12 for controlling the rotation of the second scraper 32. The output shaft of the drive motor 12 is provided with a second transmission rod 28 that extends into the guiding cavity 10. One end of the second transmission rod 28 is provided with a connecting frame 31 for controlling the operation of the second scraper 32 through the first bevel gear structure 29. The inside of the guiding cavity 10 is provided with a connecting strip 23 for protecting the first bevel gear structure 29. The upper end of the connecting strip 23 is set as an inclined surface and is provided with an anti-stick coating. The connecting frame 31 is provided with a sealing member 30 that fits with the connecting strip 23 to provide sealing protection.

[0042] In this embodiment, the drive motor 12 is started, which drives the second transmission rod 28 to rotate, so that the second transmission rod 28 drives the first bevel gear structure 29 to rotate, and the first bevel gear structure 29 drives the connecting frame 31 to rotate, so that the connecting frame 31 drives the second scraper 32 to clean the lower side of the guide cavity 10.

[0043] In this invention, a synchronous belt structure 20 is provided at one end of the second transmission rod 28 near the drive motor 12. The synchronous belt structure 20 includes three synchronous pulleys and a synchronous belt that synchronously drives the three synchronous pulleys, and the three synchronous pulleys are arranged in an isosceles triangle. A first transmission rod 27 is symmetrically provided on the synchronous belt structure 20. The first transmission rod 27 is coaxially connected to the lower synchronous pulley, and both first transmission rods 27 are offset from the guide cavity 10. A lifting gear 21 is coaxially provided at one end of the first transmission rod 27. A lifting rack 22 that meshes with the lifting gear 21 is provided at the bottom end of the connecting member 13.

[0044] In this embodiment, the drive motor 12 is started, which drives the second transmission rod 28 to rotate. The second transmission rod 28 drives the synchronous belt structure 20 to work, which in turn drives the two first transmission rods 27 to rotate. The first transmission rods 27 drive the lifting gear 21 to rotate, which in turn drives the lifting rack 22 to move up and down. The lifting rack 22 then drives the connecting member 13 to move up and down. The connecting member 13 moves the connecting frame 16, which in turn moves the filter element 11. This allows the first scraper 26 to clean the spherical micro-powder adhering to the filter element 11.

[0045] Example 3 Based on Example 2, referring to Figure 4 and Figure 10 This is the third embodiment of the present invention. In this invention, the second transmission rod 28 is provided with a main gear 24 that controls the reciprocating rotation of the rotating ring 25. The main gear 24 is located on one side of the synchronous belt structure 20. A driven gear 44 meshes directly below the main gear 24. A second bevel gear structure 45 is coaxially provided on the driven gear 44. A first transmission gear 46 is provided at one end of the second bevel gear structure 45. A first connecting rod coaxially connected to the first transmission gear 46 is provided on the second bevel gear structure 45. A second transmission gear 47 meshes on the outer side of the first transmission gear 46. A first rotating gear 48 is coaxially provided on the second transmission gear 47. A second connecting rod coaxially connected to the first rotating gear 48 is provided on the second transmission gear 47. A first rotating rack 49 meshes with the first rotating gear 48 on the outer wall of the rotating ring 25. A plurality of rotating guide members 51 are respectively misaligned with the first rotating rack 49.

[0046] In this embodiment, the drive motor 12 is started, which drives the second transmission rod 28 to rotate. The second transmission rod 28 drives the main gear 24 to rotate, and the main gear 24 drives the driven gear 44 to rotate, so that the driven gear 44 drives the second bevel gear structure 45 to rotate. The second bevel gear structure 45 drives the first transmission gear 46 to rotate through the first connecting rod, so that the first transmission gear 46 drives the second transmission gear 47 to rotate. The second transmission gear 47 drives the first rotating gear 48 to rotate through the second connecting rod, so that the first rotating gear 48 drives the first rotating rack 49 to move, so that the first rotating rack 49 drives the rotating ring 25 to rotate.

[0047] In this invention, the inside of the material guide box 7 is provided with a circular array of sealing blocks 54 to block the discharge port of the material guide cavity 10. Several sealing blocks 54 can move in conjunction with each other in the discharge port of the material guide cavity 10, thereby blocking or opening the discharge port of the material guide cavity 10. A second rotating gear 53 is provided on the outer side of the sealing block 54. The inside of the material guide box 7 is provided with a rotating ring 25 to control the synchronous operation of several second rotating gears 53. The inner wall of the rotating ring 25 is provided with a circular array of several second rotating racks 52 that mesh with the second rotating gears 53. The outer surface of the sealing block 54 is provided with a driving rack 55 that meshes with the second rotating gear 53. The inside of the material guide box 7 is provided with a limiting guide member 50 to guide the movement of the sealing block 54. The sealing block 54 is provided with a guide groove that matches the limiting guide member 50. The outer wall of the rotating ring 25 is provided with several rotating guide members 51 that rotate and guide the material guide box 7. The inside of the material guide box 7 is provided with a guide groove that matches the rotating guide member 51.

[0048] In this embodiment, when the rotating ring 25 rotates, it causes the rotating guide 51 to rotate and guide in the guide box 7. The rotating ring 25 causes the second rotating rack 52 to move, which in turn causes the second rotating gear 53 to rotate. The second rotating gear 53 causes the drive rack 55 to move, which in turn causes the sealing block 54 to move. The limiting guide 50 causes the sealing block 54 to move in a guided manner, so that several sealing blocks 54 cooperate to seal or open the discharge port of the guide cavity 10.

[0049] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A sieving and demagnetizing device for processing spherical micro powders, characterized in that, include: The screening box is detachably equipped with several demagnetizing components for screening and demagnetizing spherical micro powders; The blowing equipment is located on the upper part of the outer surface of the screening box and is used to transfer the spherical micro powder accumulated on the upper part of the inner side of the screening box. An air extraction device, which conveys the spherical micro powder transferred by the main feed box to the guide box through the feed pipe, wherein the guide box is provided with a secondary feed box connected to the screening box; The filter element, which is movable inside the feed box, is used to assist the air extraction equipment in conveying the sucked spherical powder to the screening box.

2. A spherical micropowder processing sieve demagnetizing device according to claim 1, characterized in that, The material guide box has a material guide cavity inside; The filter element has a connecting frame on its outer side that fits into the material guiding cavity; The connecting frame is symmetrically provided with connecting parts that fit and move in contact with the guide box; Several movable rods are vertically provided at the top of the connecting frame; The moving rod is fitted with a limiting spring that is connected to the guide box; The inside of the feed box is provided with several first scrapers that fit against the working surface of the filter element.

3. The sieving and demagnetizing device for processing spherical micro powder according to claim 2, characterized in that, The material guide box is equipped with an air extraction pipe that is connected to the air extraction equipment; The filter element is movably provided with a movable part on the side near the air extraction pipe; Both the upper and lower sides of the movable component are equipped with striking strips that can come into contact with the filter component. When the filter element is clogged, the moving part is subjected to increased negative pressure suction from the air extraction device, causing the moving part to control the striking strip to collide with the filter element and clean it.

4. The sieving and demagnetizing device for processing spherical micro powder according to claim 3, characterized in that, Both ends of the moving part are provided with a first sealing plate that fits into the material guiding cavity; The first sealing plate extends into the interior of the guide box via a connecting block and is provided with a first moving strip; Both ends of the striking strip are provided with a second sealing plate that fits into the material guide cavity; The second sealing plate extends into the interior of the guide box through a connecting block and is provided with a second moving bar that is drively connected to the first moving bar.

5. A sieving and demagnetizing device for processing spherical micro powder according to claim 4, characterized in that, The first moving bar is provided with a first moving rack; The inside of the guide box is provided with a first moving gear that meshes with the first moving rack; The second moving bar is provided with a second moving rack; The inside of the guide box is provided with a second moving gear that meshes with the first moving gear and the second moving rack respectively; The diameter of the second moving gear is smaller than that of the first moving gear.

6. The sieving and demagnetizing device for processing spherical micro powder according to claim 5, characterized in that, The inside of the guide box is provided with a first guide rod that is guided and connected to the first moving bar; The inside of the guide box is provided with a second guide rod that is connected to the second moving bar for guidance; Both the first guide rod and the second guide rod are fitted with a return spring.

7. The sieving and demagnetizing device for processing spherical micro powder according to claim 4, characterized in that, The upper part of the material guiding cavity has a rectangular structure; The lower part of the material guiding cavity has a circular funnel structure; The material guide cavity is equipped with a second scraper for cleaning the lower part; The outer wall of the guide box is equipped with a drive motor that controls the rotation of the second scraper. The output shaft of the drive motor is provided with a second transmission rod that extends into the material guide cavity; One end of the second transmission rod is provided with a connecting frame for controlling the operation of the second scraper via the first bevel gear structure.

8. A sieving and demagnetizing device for processing spherical micro powder according to claim 7, characterized in that, The second transmission rod has a synchronous belt structure at one end near the drive motor; The synchronous belt structure is symmetrically provided with first transmission rods; One end of the first transmission rod is coaxially equipped with a lifting gear; The bottom end of the connector is provided with a lifting rack that meshes with the lifting gear.

9. A sieving and demagnetizing device for processing spherical micro powder according to claim 7, characterized in that, The inside of the feed box is arranged in a circular array with sealing blocks to block the feed inlet of the feed chamber; The sealing block is provided with a second rotating gear on its outer side; The inside of the feed box is equipped with a rotating ring that controls several second rotating gears to work synchronously. The inner wall of the rotating ring is arranged in a circular array with several second rotating racks that mesh with the second rotating gear; The outer surface of the sealing block is provided with a drive rack that meshes with the second rotating gear; The material guide box is equipped with a limiting guide component inside to guide the movement of the sealing block; The outer wall of the rotating ring is provided with several rotating guide components that rotate and guide the material guide box.

10. A sieving and demagnetizing device for processing spherical micro powder according to claim 9, characterized in that, The second transmission rod is equipped with a main gear that controls the reciprocating rotation of the rotating ring; A driven gear meshes directly below the main gear; A second bevel gear structure is coaxially provided on the gear; The second bevel gear structure has a first transmission gear at one end; The outer side of the first transmission gear is engaged with a second transmission gear; The second transmission gear is coaxially mounted with the first rotating gear; The outer wall of the rotating ring is provided with a first rotating rack that meshes with the first rotating gear. Several of the rotary guide members are respectively misaligned with the first rotary rack.

Images