A mixing apparatus for preparing flexible bonded magnet materials

Abstract

This invention relates to the technical field of solid-liquid mixing devices, specifically disclosing a mixing device for preparing flexible bonded magnet materials. The device includes a vertically arranged mixing tube, multiple dispensing devices vertically arranged within the mixing tube, multiple partitions vertically arranged within the mixing tube, a feed pipe located on the upper side wall of the mixing tube, and a discharge device located at the lower end of the mixing tube. The mixing tube's projection on a horizontal plane is square, and the dispensing devices and partitions are alternately arranged. Each dispensing device includes a vertically arranged dispensing plate, a glue storage chamber located inside the dispensing plate, a liquid supply device communicating with the glue storage chamber, multiple dispensing holes located on the side wall of the glue storage chamber, a scraper attached to the side wall of the dispensing plate, and a first driving device for driving the scraper to move up and down. The mixing device for preparing flexible bonded magnet materials provided by this invention can effectively disperse a large amount of NdFeB magnetic powder in a small amount of resin, improving the uniformity of NdFeB magnetic powder dispersion in the resin.

Description

Technical Field

[0001] This invention relates to the technical field of solid-liquid mixing devices, and more specifically, to a mixing device for preparing flexible adhesive magnet materials. Background Technology

[0002] Flexible adhesive magnets, with their excellent shapeability and stable magnetic properties, are widely used in temporary and rapid connection scenarios for various lightweight objects. They can adapt to connection needs of different shapes and materials, and are convenient to use and easy to disassemble. For example, in magnetic false eyelashes, flexible magnets can be processed into shapes that fit the false eyelashes, and then the false eyelashes are bonded to the magnets. After magnetization, they acquire a certain degree of magnetism and can be easily worn. In addition, they can also be applied in fields such as intelligent robots and micro motors. The core component of this type of magnet material is a mixture of neodymium iron boron magnetic powder and resin. The production process is briefly as follows: First, unmagnetized neodymium iron boron magnetic powder and resin are thoroughly mixed in a specific ratio. Then, the mixture is fed into an extruder to complete the extrusion molding process. The extruded material is cooled to allow the resin to completely solidify, forming a solid basic magnet material. Finally, the solid magnet is further processed to form a specific shape that meets the needs of practical applications, and then a magnetization process is used to give it lasting magnetism, ultimately resulting in a qualified flexible adhesive magnet product.

[0003] The core guarantee of the structural stability of flexible adhesive magnet materials relies entirely on the viscosity of the resin itself and the structural stability after curing. This determines that the resin material selected in the production process is fundamentally different from traditional liquid adhesives. This specialized resin needs to have suitable viscosity and consistency to ensure effective encapsulation of high-density NdFeB magnetic powder while meeting the requirements of subsequent extrusion molding and curing. Simultaneously, to ensure sufficient magnetic strength in the magnet material, the proportion of NdFeB magnetic powder in the NdFeB magnetic powder-resin mixture is usually at a high level. However, NdFeB magnetic powder itself has a high density, making the mixing process quite challenging. In actual mixing operations, the resin is prone to agglomeration due to its viscosity characteristics, leading to severely uneven distribution of resin and NdFeB magnetic powder in the mixture. This mixing defect directly affects the subsequent extrusion molding and curing effects, ultimately resulting in uneven magnetic distribution and insufficient structural strength in the finished magnet, failing to meet practical application requirements. Therefore, a mixing device with better mixing effect is needed to design for high-viscosity liquids and high-density powders. Summary of the Invention

[0004] The purpose of this invention is to provide a mixing device for preparing flexible bonded magnet materials, which can effectively disperse a large amount of NdFeB magnetic powder in a small amount of resin, thereby improving the uniformity of NdFeB magnetic powder dispersion in the resin.

[0005] This invention is achieved through the following technical solution: The mixing device for preparing flexible adhesive magnet materials of this invention includes a vertically arranged mixing tube, multiple dispensing devices vertically arranged within the mixing tube, multiple partitions vertically arranged within the mixing tube, a feed pipe disposed on the upper side wall of the mixing tube, and a discharge device disposed at the lower end of the mixing tube; the projection of the mixing tube on the horizontal plane is square, and the multiple dispensing devices and multiple partitions are alternately arranged; each dispensing device includes a vertically arranged dispensing plate, a glue storage chamber opened inside the dispensing plate, a liquid supply device communicating with the glue storage chamber, multiple dispensing holes opened on the side wall of the glue storage chamber, a scraper attached to the side wall of the dispensing plate, and a first driving device for driving the scraper to rise and fall; the glue storage chamber is used to contain glue liquid, the feed pipe is used to add neodymium iron boron magnetic powder, and the multiple dispensing holes are distributed along the horizontal direction.

[0006] Furthermore, glue outlet holes are provided on both sides of the glue storage chamber, and the heights of the glue outlet holes on both sides of the glue storage chamber are different; the scraper is arranged in a ring structure around the outer wall of the glue outlet plate, the width of the scraper is greater than the width of the glue outlet hole, and the width of the scraper is less than the height difference of the glue outlet holes on both sides of the glue storage chamber.

[0007] Furthermore, the lower end of the dispensing plate has multiple vertically arranged sliding holes, and a connecting piece is slidably disposed in the sliding holes; the multiple sliding holes are located at the same height; the dispensing plate has a cavity inside, and the cavity is located above the glue storage chamber; the connecting piece is fixedly connected to the scraper; the first driving device includes a first pull rod that is vertical and connected to the connecting piece, a first connecting plate that is horizontally arranged, and a second pull rod that is vertical and connected to the first connecting plate; the upper ends of the multiple first pull rods are all connected to the first connecting plate, the first pull rods pass through the glue storage chamber, and the first connecting plate is disposed in the cavity.

[0008] Furthermore, the first driving device also includes a first linear reciprocating driving mechanism fixedly disposed above the mixing pipe; the second pull rod passes through the upper end of the dispensing plate and is slidably connected to the dispensing plate in a sealed manner; the upper ends of a plurality of second pull rods are simultaneously connected to a second connecting plate, and the second connecting plate is connected to the first linear reciprocating driving mechanism.

[0009] Furthermore, it also includes multiple horizontally arranged connecting strips; the connecting strips are used to connect the upper end of the dispensing plate and the upper end of the partition plate, the multiple connecting strips are parallel to each other and distributed in the horizontal direction, and the connecting strips are fixedly connected to the inner wall of the mixing pipe.

[0010] Furthermore, it also includes a second driving device for simultaneously driving the vibration of multiple partitions; the partitions are elastic thin metal plates; the dispensing plate has a first through hole, and the partitions have a second through hole; the second driving device includes a driving rod, multiple limiting devices disposed on the driving rod, and a second linear reciprocating driving mechanism connected to one end of the driving rod; the driving rod passes through multiple first through holes and multiple second through holes simultaneously, the driving rod is slidably connected to the first through hole, the driving rod passes through the mixing pipe and is slidably connected to the mixing pipe, and the second linear reciprocating driving mechanism is fixedly disposed on the outer wall of the mixing pipe; one limiting device is connected to one partition.

[0011] Furthermore, the limiting device includes a pair of limiting rings fixedly disposed on the drive rod; the pair of limiting rings are respectively disposed on both sides of the partition.

[0012] Furthermore, horizontally arranged reinforcing ribs are fixed on both sides of the partition, and the limiting ring is attached to the reinforcing ribs.

[0013] Furthermore, the discharge device includes a discharge hopper located at the lower end of the mixing pipe, and a screw feeder horizontally located below the discharge hopper.

[0014] Furthermore, according to mass content, in the mixture of neodymium iron boron magnetic powder and adhesive, the content of neodymium iron boron magnetic powder is 90%-99%; the adhesive contains 35-45% SEBS, 15-25% PP, and 30-40% naphthenic oil.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: In the mixing device for preparing flexible adhesive magnet materials, solid neodymium iron boron (NdFeB) magnetic powder is fed into the mixing pipe through the feed pipe. The NdFeB magnetic powder gradually disperses in the mixing pipe into the gap between the dispensing plate and the partition, and then passes through the gap into the discharge device below, finally being discharged through the discharge device. During this process, because the gap between the dispensing plate and the partition is small, only a small thickness of NdFeB magnetic powder can be accommodated between the dispensing plate and the partition at a time. As the NdFeB magnetic powder slowly descends between the dispensing plate and the partition, the liquid supply device sends the adhesive liquid into the storage chamber through the pump. The adhesive liquid in the storage chamber is under high pressure under the action of the pump, and can be discharged through the dispensing hole. After being discharged through the dispensing hole, the adhesive liquid enters the NdFeB magnetic powder and mixes with it. During this process, the scraper moves up and down at high frequency under the action of the first drive device. When the scraper moves upward, it blocks the glue outlet, preventing glue from dispensing. When the scraper moves downward, the glue outlet is exposed, and the glue is discharged through it. Therefore, the periodic up and down movement of the scraper allows the glue to be sprayed out of the glue outlet in droplets, evenly entering and dispersing into the NdFeB magnetic powder. When a large number of glue droplets are evenly dispersed in the relatively thin layer of NdFeB magnetic powder, it is equivalent to the glue being evenly dispersed within the NdFeB magnetic powder. For glues with high viscosity, this effectively prevents agglomeration. Subsequent processing only requires simple stirring or direct feeding into a screw extruder for granulation. Furthermore, the up and down movement of the scraper effectively agitates the NdFeB magnetic powder, promoting its downward flow and preventing clogging. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the mixing device for preparing flexible bonded magnet materials provided in an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A sectional view along the vertical direction;

[0018] Figure 3 This is a schematic diagram of the internal structure of the mixing pipe provided in an embodiment of the present invention;

[0019] Figure 4 for Figure 3 Another structural diagram from a different perspective;

[0020] Figure 5 This is a schematic diagram of the adhesive dispensing device provided in an embodiment of the present invention;

[0021] Figure 6 for Figure 5 A sectional view along the vertical direction;

[0022] Figure 7 This is a schematic diagram of the adhesive dispensing plate provided in an embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the scraper structure provided in an embodiment of the present invention;

[0024] Figure 9 This is a schematic diagram of the structure of the partition provided in an embodiment of the present invention;

[0025] Figure 10 This is a schematic diagram of the drive rod provided in an embodiment of the present invention.

[0026] Icons: 10-Mixing pipe, 11-Feeding pipe, 12-Discharging device, 121-Discharging hopper, 122-Screw feeder, 20-Glue dispensing device, 21-Glue dispensing plate, 22-Glue storage chamber, 23-Glue dispensing hole, 24-Scraper, 25-First driving device, 251-First pull rod, 252-First connecting plate, 253-Second pull rod, 254-Second connecting plate, 255-First linear reciprocating drive mechanism, 26-Sliding hole, 27-Connecting piece, 28-Cavity, 29-Connecting strip, 210-First through hole, 211-Pipe, 30-Partition plate, 31-Reinforcing rib, 40-Second driving device, 41-Drive rod, 42-Limiting ring, 43-Second linear reciprocating drive mechanism. Detailed Implementation

[0027] Example

[0028] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 - Appendix Figure 10As shown, the mixing apparatus for preparing flexible adhesive magnet material in this embodiment includes a vertically arranged mixing tube 10, a plurality of adhesive dispensing devices 20 vertically arranged inside the mixing tube 10, a plurality of partitions 30 vertically arranged inside the mixing tube 10, a feed tube 11 disposed on the upper side wall of the mixing tube 10, and a discharge device 12 disposed at the lower end of the mixing tube 10; the projection of the mixing tube 10 on the horizontal plane is square, and the plurality of adhesive dispensing devices 20 and the plurality of partitions 30 are alternately arranged; The dispensing device 20 includes a vertically arranged dispensing plate 21, a glue storage chamber 22 inside the dispensing plate 21, a liquid supply device communicating with the glue storage chamber 22, multiple dispensing holes 23 on the side wall of the glue storage chamber 22, a scraper 24 attached to the side wall of the dispensing plate 21, and a first driving device 25 for driving the scraper 24 to rise and fall. The glue storage chamber 22 is used to contain glue liquid, the feed pipe 11 is used to feed neodymium iron boron magnetic powder, and the multiple dispensing holes 23 are distributed horizontally. Specifically, in use, solid neodymium iron boron magnetic powder is fed into the mixing pipe 10 through the feed pipe 11. The neodymium iron boron magnetic powder will gradually disperse in the mixing pipe 10 into the gap between the dispensing plate 21 and the partition plate 30, and after passing through the gap between the dispensing plate 21 and the partition plate 30, it enters the discharge device 12 below and is finally discharged through the discharge device 12. During this process, due to the small gap between the dispensing plate 21 and the partition 30, only a small thickness of NdFeB magnetic powder can be accommodated between the dispensing plate 21 and the partition 30 at a time. As the NdFeB magnetic powder slowly descends between the dispensing plate 21 and the partition 30, the liquid supply device sends the adhesive into the storage chamber 22 through the pump body and the pipeline 211. The adhesive in the storage chamber 22 is under high pressure under the action of the pump body. The adhesive in the storage chamber 22 can be discharged through the dispensing hole 23. After being discharged through the dispensing hole 23, the adhesive enters the NdFeB magnetic powder and mixes with it. During this process, the scraper 24 moves up and down at a high frequency under the action of the first drive device 25. When the scraper 24 moves upward, it blocks the glue outlet 23, preventing glue from exiting. When the scraper 24 moves downward, the glue outlet 23 is exposed, and the glue is discharged through it. Therefore, the periodic up and down movement of the scraper 24 allows the glue to be sprayed out of the glue outlet 23 in droplet form, evenly entering and dispersing into the NdFeB magnetic powder. When a large number of glue droplets are evenly dispersed in the relatively thin layer of NdFeB magnetic powder, it is equivalent to the glue being evenly dispersed in the NdFeB magnetic powder. For glue with high viscosity, this effectively prevents agglomeration. Subsequently, only simple stirring or direct feeding into a screw extruder for granulation is required. Furthermore, the up and down movement of the scraper 24 can also effectively agitate the NdFeB magnetic powder, promoting its downward flow and preventing blockage.

[0029] In this embodiment, glue outlet holes 23 are provided on both sides of the glue storage chamber 22, and the heights of the glue outlet holes 23 on both sides of the glue storage chamber 22 are different. The scraper 24 is arranged in a ring structure around the outer wall of the glue dispensing plate 21. The width of the scraper 24 is greater than the width of the glue outlet hole 23, and the width of the scraper 24 is less than the height difference of the glue outlet holes 23 on both sides of the glue storage chamber 22. Specifically, glue outlet holes 23 are provided on both sides of the glue storage chamber 22, so that the glue in the glue storage chamber 22 can be discharged from the glue outlet holes 23 on both sides. This allows the glue to enter the space on both sides of the glue dispensing plate 21. However, the heights of the glue outlet holes 23 on both sides are different, so at the same time, only one side of the glue outlet hole 23 can discharge glue, while the other side of the glue outlet hole 23 is blocked by the scraper 24. This ensures that the glue has sufficient pressure to be continuously and stably sprayed from the glue outlet hole 23.

[0030] In this embodiment, the lower end of the glue dispensing plate 21 is provided with a plurality of vertically arranged sliding holes 26, and a connecting piece 27 is slidably arranged in the sliding holes 26; the plurality of sliding holes 26 are located at the same height; the glue dispensing plate 21 is provided with a cavity 28, which is located above the glue storage chamber 22; the connecting piece 27 is fixedly connected to the scraper 24; the first driving device 25 includes a first pull rod 251 that is vertical and connected to the connecting piece 27, a first connecting plate 252 that is horizontally arranged, and a second pull rod 253 that is vertical and connected to the first connecting plate 252; the upper ends of the plurality of first pull rods 251 are all connected to the first connecting plate 252, the first pull rods 251 pass through the glue storage chamber 22, and the first connecting plate 252 is located in the cavity 28. Specifically, multiple connecting pieces 27 and multiple first pull rods 251 can more stably pull the scraper 24 to rise and fall, effectively preventing the scraper 24 from tilting during the rising and falling process. The scraper 24 is fully attached to the outer wall of the dispensing plate 21, while the glue can act as a lubricant between the scraper 24 and the dispensing plate 21, preventing wear between the scraper 24 and the dispensing plate 21. A heating device can be installed inside the dispensing plate 21 to heat the glue, or the glue can be directly heated from the outside before being fed into the dispensing plate 21, which will improve the fluidity of the glue.

[0031] In this embodiment, the first driving device 25 further includes a first linear reciprocating drive mechanism 255 fixedly disposed above the mixing pipe 10; a second pull rod 253 passes through the upper end of the dispensing plate 21 and is slidably connected to the dispensing plate 21 in a sealed manner; the upper ends of multiple second pull rods 253 are simultaneously connected to a second connecting plate 254, and the second connecting plate 254 is connected to the first linear reciprocating drive mechanism 255. Specifically, the first linear reciprocating drive mechanism 255 can drive the second connecting plate 254, the second pull rod 253, the first connecting plate 252, the first pull rod 251, and the scraper 24 to move up and down reciprocally. The first linear reciprocating drive mechanism 255 can use a motor as a power source, and through existing conventional transmission structures such as a crank-slider mechanism or a piston cylinder, the rotational motion of the motor is converted into high-frequency linear reciprocating motion along the axis of the rod, thereby driving the rod to complete axial reciprocating movement. The second linear reciprocating drive mechanism 43 is similar.

[0032] In this embodiment, a plurality of horizontally arranged connecting strips 29 are also included. The connecting strips 29 are used to connect the upper end of the dispensing plate 21 and the upper end of the partition plate 30. The plurality of connecting strips 29 are parallel to each other and distributed in the horizontal direction. The connecting strips 29 are fixedly connected to the inner wall of the mixing tube 10. Specifically, the connecting strips 29 can fix the dispensing plate 21 inside the mixing tube 10, and can also fix the upper end of the partition plate 30.

[0033] In this embodiment, a second driving device 40 is also included to simultaneously drive multiple partitions 30 to vibrate; the partitions 30 are elastic thin metal plates; the dispensing plate 21 has a first through hole 210, and the partitions 30 have a second through hole; the second driving device 40 includes a driving rod 41, multiple limiting devices disposed on the driving rod 41, and a second linear reciprocating driving mechanism 43 connected to one end of the driving rod 41; the driving rod 41 passes through multiple first through holes 210 and multiple second through holes simultaneously, the driving rod 41 is slidably connected to the first through hole 210, the driving rod 41 passes through the mixing pipe 10 and is slidably connected to the mixing pipe 10, and the second linear reciprocating driving mechanism 43 is fixedly disposed on the outer wall of the mixing pipe 10; one limiting device is connected to one partition 30. Specifically, since the upper end of the partition 30 is fixed, its lower end is a free end, and since the partition 30 is made of elastic metal, its lower end can swing under the action of external force. In this embodiment, the second linear reciprocating drive mechanism 43 drives the drive rod 41 to perform high-frequency axial reciprocating movement, and then drives multiple partitions 30 to swing simultaneously through the limiting device. Since the upper end of the partition 30 is fixed, the lower end of the partition 30 will swing. The swing of the partition 30 can effectively disperse the neodymium iron boron magnetic powder located between the partition 30 and the dispensing plate 21, so that the adhesive can enter the interior of the neodymium iron boron magnetic powder, and can also effectively prevent the neodymium iron boron magnetic powder from blocking the lower end of the partition 30 and the dispensing plate 21.

[0034] The limiting device in this embodiment includes a pair of limiting rings 42 fixedly mounted on the drive rod 41; the pair of limiting rings 42 are respectively disposed on both sides of the partition 30. Specifically, the pair of limiting rings 42 can clamp the partition 30, and then the limiting rings 42 can drive the partition 30 to swing as the drive rod 41 moves. Since the partition 30 swings, a sufficient gap is required between the drive rod 41 and the second through hole.

[0035] In this embodiment, horizontally arranged reinforcing ribs 31 are fixed on both sides of the partition 30, and the limiting ring 42 is attached to the reinforcing ribs 31. Specifically, the force of the limiting ring 42 acts directly on the reinforcing ribs 31, which can prevent the partition 30 from undergoing local deformation at the second through hole, making the overall swing of the partition 30 more stable and smooth.

[0036] The discharge device 12 in this embodiment includes a discharge hopper 121 located at the lower end of the mixing pipe 10, and a screw feeder 122 horizontally located below the discharge hopper 121. Specifically, the screw feeder 122 can not only continuously discharge the mixture, but also further stir and mix the mixture.

[0037] In this embodiment, the NdFeB magnetic powder content in the mixture of NdFeB magnetic powder and adhesive is 90%-99% by mass; the adhesive contains 35-45% SEBS, 15-25% PP, and 30-40% naphthenic oil. Specifically, according to this ratio, the adhesive still has a certain fluidity under certain stability, allowing it to be smoothly extruded from the dispensing orifice 23, and can be integrated with the NdFeB magnetic powder after subsequent curing. To ensure convenient transport to the extruder after the initial mixing of the adhesive and NdFeB magnetic powder, the NdFeB magnetic powder needs to be preheated to prevent the adhesive from rapidly curing upon contact with the low-temperature NdFeB magnetic powder. Since the density of NdFeB magnetic powder is significantly higher than that of the adhesive, the NdFeB magnetic powder content is greater than 90% by mass.

[0038] In summary, the mixing apparatus for preparing flexible bonded magnet materials in this embodiment involves feeding solid neodymium iron boron magnetic powder into the mixing pipe 10 through the feed pipe 11. The neodymium iron boron magnetic powder gradually disperses in the mixing pipe 10 into the gap between the dispensing plate 21 and the partition plate 30, and then passes through the gap between the dispensing plate 21 and the partition plate 30 into the discharge device 12 below, and is finally discharged through the discharge device 12. During this process, due to the small gap between the dispensing plate 21 and the partition 30, only a small thickness of NdFeB magnetic powder can be accommodated between the dispensing plate 21 and the partition 30 at a time. As the NdFeB magnetic powder slowly descends between the dispensing plate 21 and the partition 30, the liquid supply device sends the adhesive into the storage chamber 22 through the pump body and the pipeline 211. The adhesive in the storage chamber 22 is under high pressure under the action of the pump body. The adhesive in the storage chamber 22 can be discharged through the dispensing hole 23. After being discharged through the dispensing hole 23, the adhesive enters the NdFeB magnetic powder and mixes with it. During this process, the scraper 24 moves up and down at a high frequency under the action of the first drive device 25. When the scraper 24 moves upward, it blocks the glue outlet 23, preventing glue from exiting. When the scraper 24 moves downward, the glue outlet 23 is exposed, and the glue is discharged through it. Therefore, the periodic up and down movement of the scraper 24 allows the glue to be sprayed out of the glue outlet 23 in droplet form, evenly entering and dispersing into the NdFeB magnetic powder. When a large number of glue droplets are evenly dispersed in the relatively thin layer of NdFeB magnetic powder, it is equivalent to the glue being evenly dispersed in the NdFeB magnetic powder. For glue with high viscosity, this effectively prevents agglomeration. Subsequently, only simple stirring or direct feeding into a screw extruder for granulation is required. Furthermore, the up and down movement of the scraper 24 can also effectively agitate the NdFeB magnetic powder, promoting its downward flow and preventing blockage.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A mixing apparatus for preparing flexible bonded magnet materials, characterized in that: It includes a vertically arranged mixing pipe, multiple adhesive dispensing devices vertically arranged inside the mixing pipe, multiple vertically arranged partitions inside the mixing pipe, a feed pipe arranged on the upper side wall of the mixing pipe, and a discharge device arranged at the lower end of the mixing pipe. The projection of the mixing pipe on the horizontal plane is square, and multiple dispensing devices and multiple partitions are alternately arranged; The dispensing device includes a vertically arranged dispensing plate, a glue storage chamber opened inside the dispensing plate, a liquid supply device communicating with the glue storage chamber, a plurality of dispensing holes opened on the side wall of the glue storage chamber, a scraper attached to the side wall of the dispensing plate, and a first driving device for driving the scraper to rise and fall. The glue storage chamber is used to contain the glue liquid, the feed pipe is used to feed neodymium iron boron magnetic powder, and the plurality of glue outlet holes are distributed in the horizontal direction.

2. The mixing apparatus for preparing flexible bonded magnet materials according to claim 1, characterized in that: The glue storage chamber has glue outlet holes on both sides, and the heights of the glue outlet holes on both sides of the glue storage chamber are different. The scraper is arranged in a ring around the outer wall of the glue dispensing plate. The width of the scraper is greater than the width of the glue dispensing hole, and the width of the scraper is less than the height difference between the glue dispensing holes on both sides of the glue storage chamber.

3. The mixing apparatus for preparing flexible bonded magnet materials according to claim 1, characterized in that: The lower end of the glue dispensing plate has multiple vertically arranged sliding holes, and a connecting piece is slidably disposed in the sliding holes; the multiple sliding holes are located at the same height; the glue dispensing plate has a cavity inside, which is located above the glue storage chamber; the connecting piece is fixedly connected to the scraper. The first driving device includes a first pull rod that is vertical and connected to the connecting piece, a first connecting plate that is horizontally arranged, and a second pull rod that is vertical and connected to the first connecting plate; The upper ends of multiple first pull rods are all connected to the first connecting plate, the first pull rods pass through the glue storage chamber, and the first connecting plate is disposed in the cavity.

4. The mixing apparatus for preparing flexible bonded magnet materials according to claim 3, characterized in that: The first driving device further includes a first linear reciprocating driving mechanism fixedly disposed above the mixing pipe; The second pull rod passes through the upper end of the glue dispensing plate and is in a sealed sliding connection with the glue dispensing plate; The upper ends of multiple second pull rods are simultaneously connected to the second connecting plate, and the second connecting plate is connected to the first linear reciprocating drive mechanism.

5. The mixing apparatus for preparing flexible bonded magnet materials according to claim 1, characterized in that: It also includes multiple horizontally arranged connecting strips; the connecting strips are used to connect the upper end of the dispensing plate and the upper end of the partition plate, the multiple connecting strips are parallel to each other and distributed in the horizontal direction, and the connecting strips are fixedly connected to the inner wall of the mixing pipe.

6. The mixing apparatus for preparing flexible bonded magnet materials according to claim 5, characterized in that: It also includes a second driving device for simultaneously driving the vibration of multiple said partitions; said partitions are thin metal plates with elasticity; The dispensing plate has a first through hole, and the partition plate has a second through hole; The second driving device includes a driving rod, a plurality of limiting devices disposed on the driving rod, and a second linear reciprocating driving mechanism connected to one end of the driving rod; The drive rod passes through multiple first through holes and multiple second through holes simultaneously. The drive rod is slidably connected to the first through hole in a sealed manner. The drive rod passes through the mixing pipe and is slidably connected to the mixing pipe in a sealed manner. The second linear reciprocating drive mechanism is fixedly disposed on the outer wall of the mixing pipe. One of the limiting devices is connected to one of the partitions.

7. The mixing apparatus for preparing flexible bonded magnet materials according to claim 6, characterized in that: The limiting device includes a pair of limiting rings fixed on the drive rod; the pair of limiting rings are respectively disposed on both sides of the partition.

8. The mixing apparatus for preparing flexible bonded magnet materials according to claim 7, characterized in that: Both sides of the partition are fixed with horizontally arranged reinforcing ribs, and the limiting ring is attached to the reinforcing ribs.

9. The mixing apparatus for preparing flexible bonded magnet materials according to claim 1, characterized in that: The discharge device includes a discharge hopper located at the lower end of the mixing pipe, and a screw feeder horizontally located below the discharge hopper.

10. The mixing apparatus for preparing flexible bonded magnet materials according to claim 1, characterized in that: According to mass content, in the mixture of neodymium iron boron magnetic powder and adhesive solution, the content of neodymium iron boron magnetic powder is 90%-99%; the adhesive solution contains 35-45% SEBS, 15-25% PP, and 30-40% naphthenic oil.

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