A mixer for producing a neodymium-iron-boron magnet

Abstract

The utility model relates to neodymium iron boron processing mixing technology field discloses a kind of mixing machine for neodymium iron boron magnet production, including mixing tank, mixing tank top is equipped with feed hopper, bottom is equipped with discharge pipe, the discharge pipe outside is equipped with motor, the power output end of motor is equipped with driving wheel, driving wheel is equipped with driven wheel by synchronous belt, driven wheel is equipped with stirring assembly inside, mixing tank top is slidably equipped with filter plate, stirring assembly is equipped with anti-blocking component that can drive filter plate raw material up and down vibration to avoid filter hole blockage. The utility model has the advantages compared with prior art: it is convenient to filter raw material, linkage drive, to prevent blockage.

Description

Technical Field

[0001] This utility model relates to the field of NdFeB processing and mixing technology, specifically to a mixing machine for NdFeB magnet production. Background Technology

[0002] The processing flow of neodymium iron boron magnets is divided into two parts: the pre-process and the post-process. The pre-process mainly involves mixing raw materials such as praseodymium, neodymium, pure iron, and ferroboron in a certain proportion, followed by high-temperature melting in a vacuum melting furnace to form alloy sheets. The alloy sheets are then placed in a hydrogen environment to absorb hydrogen and expand, bursting and breaking along the neodymium-rich phase layer. The fragments after the hydrogen explosion are then pulverized into magnetic powder of 3-5 μm using an air jet mill. Finally, the magnetic powder is pressed into shape in a magnetic field and then sintered at high temperature in a vacuum sintering furnace to form a high-density blank.

[0003] In existing raw material mixtures for iron boron magnet production, neodymium iron boron powder may contain particles with larger sizes, which can easily affect the density and consistency of the magnet and thus affect the quality of the finished product. Although the filter plate in the mixing tank can filter, it is set up independently from the mixing. After the raw material passes through the filter plate, it is easy to clog the filter pores and affect the subsequent filtration function. Utility Model Content

[0004] The technical problem this invention aims to solve is that the filter plate and the mixing material are set up independently, requiring additional drive, and the raw materials are prone to clogging the filter holes, thus affecting the subsequent filtration function.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a mixing machine for the production of neodymium iron boron magnets, including a mixing tank, a feeding hopper at the top of the mixing tank, a discharge pipe at the bottom, a motor on the outside of the discharge pipe, a drive wheel at the power output end of the motor, a driven wheel via a synchronous belt, a stirring assembly inside the driven wheel, a filter plate slidingly mounted on the top of the mixing tank, and an anti-clogging component on the stirring assembly that can drive the raw material on the filter plate to vibrate up and down to avoid clogging the filter holes.

[0006] Furthermore, the stirring assembly includes a bushing located in the middle of the discharge pipe, a stirring shaft rotatably passing through the bushing, and a plurality of stirring rods evenly distributed on the stirring shaft.

[0007] Furthermore, the anti-clogging component includes grooves on both sides of the mixing tank, sliders on both sides of the filter plate, a spring between the grooves and the sliders, a drive block at the end of the stirring shaft, the drive block passing through the filter plate, a drive groove on the circumference of the drive block, and drive columns on the filter plate that cooperate with the drive groove.

[0008] Furthermore, the driving block has a cylindrical structure, and the driving groove includes several inclined grooves and vertical grooves arranged around the circumference of the driving block. The inclined grooves and vertical grooves are arranged alternately and connected end to end.

[0009] Furthermore, a conical block is provided at the top of the drive block.

[0010] Furthermore, the mixing tank is provided with an outlet pipe at the filter plate.

[0011] The advantages of this utility model compared with the prior art are as follows:

[0012] Raw materials are fed into the mixing tank through the feed hopper. Raw materials with qualified particle size are fed into the bottom of the mixing tank through the filter plate. The stirring component is driven by the motor to stir and mix the raw materials in the mixing tank. The anti-clogging component is driven by the stirring component to make the filter plate vibrate up and down to prevent large-particle raw materials from clogging the filter plate and affecting the raw material feeding. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a mixing machine for producing neodymium iron boron magnets according to this utility model.

[0014] Figure 2 This is a half-sectional structural diagram of a mixing machine for producing neodymium iron boron magnets according to this utility model.

[0015] Figure 3 yes Figure 2 A magnified structural diagram of A in the diagram.

[0016] Figure 4 yes Figure 2 A magnified structural diagram of B in the diagram.

[0017] Figure 5 This is an exploded structural diagram of a mixing machine for producing neodymium iron boron magnets according to this utility model.

[0018] Figure 6 This is a schematic diagram of the drive block in a mixing machine for producing neodymium iron boron magnets according to this utility model.

[0019] As shown in the figure: 1. Mixing tank, 2. Feed hopper, 3. Discharge pipe, 4. Motor, 5. Drive wheel, 6. Driven wheel, 7. Synchronous belt, 8. Mixing assembly, 9. Filter plate, 10. Anti-clogging assembly, 11. Bushing, 12. Mixing shaft, 13. Mixing rod, 14. Slide groove, 15. Sliding block, 16. Spring, 17. Drive block, 18. Drive groove, 19. Drive column, 20. Inclined groove, 21. Vertical groove, 22. Conical block, 23. Outlet pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Combined with appendix Figure 1 and attached Figure 2 A mixing machine for producing neodymium iron boron magnets includes a mixing tank 1, a feeding hopper 2 at the top of the mixing tank 1, and a discharge pipe 3 at the bottom. A motor 4 is provided on the outside of the discharge pipe 3. A drive wheel 5 is provided at the power output end of the motor 4. A driven wheel 6 is provided on the drive wheel 5 via a synchronous belt 7. A stirring assembly 8 is provided inside the driven wheel 6. The stirring assembly 8 includes a bushing 11 located in the middle of the discharge pipe 3. A stirring shaft 12 is rotatably passed through the bushing 11. A plurality of stirring rods 13 are evenly distributed on the stirring shaft 12.

[0022] Under an inert gas atmosphere, the raw material is fed from the feed hopper 2 into the mixing tank 1. After being filtered by the filter plate 9, the raw material with qualified particle size is fed into the bottom of the mixing tank 1 through the filter holes on the filter plate 9. A valve is provided at the discharge pipe 3.

[0023] Then, by starting the motor 4, the motor 4 drives the drive wheel 5, the drive wheel 5 drives the driven wheel 6 through the synchronous belt 7, and the driven wheel 6 drives the stirring shaft 12 to rotate the stirring rod 13, so as to stir and accelerate the mixing of the raw materials in the mixing tank 1.

[0024] Combined with appendix Figure 3 Appendix Figure 4 Appendix Figure 5 and attached Figure 6 A filter plate 9 is slidably mounted on the top of the mixing tank 1. An outlet pipe 23 is provided at the filter plate 9 in the mixing tank 1. An anti-clogging component 10 is provided on the stirring assembly 8 to drive the raw material on the filter plate 9 to vibrate up and down to avoid clogging the filter holes. The anti-clogging component 10 includes a sliding groove 14 on both sides of the mixing tank 1. A slider 15 is provided opposite to both sides of the filter plate 9. A spring 16 is provided between the sliding groove 14 and the slider 15. A driving block 17 is provided at the end of the stirring shaft 12. The driving block 17 is a cylindrical structure. The driving block 17 is set through the filter plate 9 and has a conical block 22 at the top. A driving groove 18 is provided around the driving block 17. The driving groove 18 includes an even number of inclined grooves 20 and vertical grooves 21 on the circumference of the driving block 17. The inclined grooves 20 and vertical grooves 21 are arranged alternately and connected end to end. A driving column 19 that cooperates with the driving groove 18 is provided on the filter plate 9.

[0025] The stirring shaft 12 drives the drive block 17 to rotate, and the drive block 17 cooperates with the drive column 19 on the filter plate 9 through the drive groove 18 to drive the filter plate 9 to slide up and down.

[0026] When the drive block 17 rotates, and the inclined groove 20 engages with the drive columns 19 on both sides, the drive column 19 drives the filter plate 9 to slide upward through the engagement of the slider 15 and the sliding groove 14. At this time, the spring 16 deforms and stores force.

[0027] When the drive column 19 is engaged with the connection between the vertical groove 21 and the inclined groove 20, the filter plate 9 is reset by the spring 16, and the drive column 19 slides down along the vertical groove 21 to the connection between the bottom of the vertical groove 21 and the inclined groove 20, so that the filter plate 9 can drive the raw material to vibrate back and forth, avoiding the raw material from clogging the filter holes; the raw material with excessive particle size is discharged through the outlet pipe 23 and recycled.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A mixing machine for producing neodymium iron boron magnets, comprising a mixing tank (1), a feeding hopper (2) at the top of the mixing tank (1), and a discharging pipe (3) at the bottom, characterized in that: The discharge pipe (3) is provided with a motor (4) on the outside. The power output end of the motor (4) is provided with a drive wheel (5). The drive wheel (5) is provided with a driven wheel (6) via a synchronous belt (7). The driven wheel (6) is provided with a stirring shaft (12) and a stirring assembly (8) for driving the stirring shaft (12) to rotate. A filter plate (9) is slidably provided on the top of the mixing tank (1). An anti-clogging assembly (10) is provided on the stirring shaft (12) to drive the raw material on the filter plate (9) to vibrate up and down to avoid clogging the filter holes. The anti-clogging assembly (10) includes a sliding groove (14) on both sides of the mixing tank (1). A slider (15) is provided opposite to both sides of the filter plate (9). A spring (16) is provided between the sliding groove (14) and the slider (15). A drive block (17) is provided at the top of the stirring shaft (12). The drive block (17) is provided through the filter plate (9). A drive groove (18) is provided around the drive block (17). A drive column (19) that cooperates with the drive groove (18) is provided opposite to the filter plate (9).

2. The mixing machine for producing neodymium iron boron magnets according to claim 1, characterized in that: The stirring assembly (8) includes a bushing (11) located in the middle of the discharge pipe (3), a stirring shaft (12) that rotates through the bushing (11) and extends upward, and a number of stirring rods (13) are evenly distributed on the stirring shaft (12).

3. A mixing machine for producing neodymium iron boron magnets according to claim 1, characterized in that: The drive block (17) is a cylindrical structure, and the drive groove (18) includes several inclined grooves (20) and vertical grooves (21) arranged around the drive block (17). The inclined grooves (20) and vertical grooves (21) are arranged alternately and connected end to end.

4. A mixing machine for producing neodymium iron boron magnets according to claim 1, characterized in that: The top of the drive block (17) is provided with a conical block (22).

5. A mixing machine for producing neodymium iron boron magnets according to claim 1, characterized in that: The mixing tank (1) is provided with an outlet pipe (23) at the filter plate (9).

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