Neodymium-iron-boron magnet drying device

By combining a conveyor belt and a turning box, the problem of incomplete drying of neodymium iron boron magnets was solved, achieving automatic turning and uniform drying, thus improving drying efficiency.

CN223965830UActive Publication Date: 2026-03-03SHANGQIU STAR GRP ELECTRONICS IND
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Patent Information

Application Number
CN202520399794.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-03-03
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

In existing technologies, neodymium iron boron magnets cannot be automatically flipped during the drying process, resulting in incomplete drying and uneven drying.

Method used

A drying device comprising a conveyor belt, an inclined panel, a turning box, and a fan was designed. By utilizing the power storage of the conveyor belt and the automatic turning mechanism, combined with the fan and ventilation holes, the automatic turning and uniform drying of neodymium iron boron magnets can be achieved.

Benefits of technology

It enables automatic flipping and thorough drying of neodymium iron boron magnets, avoiding uneven drying, improving drying efficiency, and ensuring that each magnet is dried evenly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of drying, in particular to a neodymium-iron-boron magnet drying device, which solves the problems that the neodymium-iron-boron magnet cannot be turned over automatically and cannot be dried thoroughly and comprises a drying box, a feeding box is mounted at the top of the drying box, a conveying belt is arranged in the drying box, and the drying box is located at one end of the top of the conveying belt. A first inclined panel and a second inclined panel are fixedly installed on the side wall of the drying box, and the first inclined panel and the second inclined panel are in a concave shape. The air blowing effect and the drying efficiency can be guaranteed, meanwhile, through the arrangement of the inclined panel, the primary turn-over effect can be achieved, then secondary thorough turn-over can be achieved through the turn-over box, thorough turn-over is guaranteed, meanwhile, drying can be continuously conducted after turn-over, uniform drying of the device is guaranteed, the drying efficiency is high, and the drying effect is good. And the phenomenon that one side is dried and the bottom or other positions are not dried is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of drying technology, specifically to a neodymium iron boron magnet drying device. Background Technology

[0002] Neodymium iron boron (NdFeB) magnets are tetragonal crystals formed from neodymium, iron, and boron. The magnetic energy product of this type of magnet is greater than that of samarium cobalt (SMC) magnets, and it is also the most commonly used rare earth magnet. Currently, it is widely used in electronic products such as hard drives, headphones, and mobile phones. During the production and processing of NdFeB magnets, the processes generally include smelting, powdering, pressing, sintering, grinding, cutting, and electroplating.

[0003] After NdFeB magnets are machined, their surfaces will produce debris and be contaminated with coolant. After cleaning the machined NdFeB magnets, their surfaces will still contain moisture, so further drying is required.

[0004] In the existing technology, when drying NdFeB magnets, it is impossible to flip the NdFeB magnets, resulting in uneven drying and incomplete drying of the NdFeB magnets.

[0005] Therefore, this utility model provides a neodymium iron boron magnet drying device to solve the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a neodymium iron boron magnet drying device to solve the problems of not being able to automatically flip the magnets and incomplete drying.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A neodymium iron boron magnet drying device includes a drying chamber with a feeding box mounted on top. A conveyor belt is installed inside the drying chamber, with the drying chamber located at one end of the top of the conveyor belt. A first inclined plate and a second inclined plate are fixedly mounted on the side wall of the drying chamber. The first and second inclined plates are U-shaped, and their bottoms abut against the outer surface of the conveyor belt. A reciprocating screw is rotatably connected to the inner side wall of the drying chamber and is driven by the conveyor belt. A turning box is threaded onto the outer wall of the reciprocating screw. The turning box matches the outer surface of the conveyor belt, and an air box is installed inside the conveyor belt. A fan is installed on the inner wall of the drying chamber, and ventilation holes are opened on the inner wall of the conveyor belt. This device can ensure the blowing effect and drying efficiency through the arrangement of ventilation holes, fans, and air boxes. At the same time, the inclined panel can achieve the initial turning effect, and then the turning box can achieve a thorough turning again, ensuring thorough turning. After turning, drying can continue, ensuring uniform drying and high drying efficiency, avoiding the phenomenon of one side drying while the bottom or other parts are not dried.

[0009] Preferably, a drive cylinder is installed on the inner wall of the conveyor belt, and the drive cylinder is fixedly connected to the output end of the stepper motor. The stepper motor is fixedly installed on the outer wall of the drying chamber. This device uses a stepper motor for control, and after outputting a distance, it performs drying and flipping to avoid the phenomenon of drying omissions and ensure that each piece can be flipped and dried.

[0010] Preferably, a rotating shaft is rotatably connected to the inner wall of the drying oven, a first spiral spring is fixedly installed on the outer wall of one end of the rotating shaft, the other end of the first spiral spring is fixedly connected to the inner wall of the drying oven, and the other end of the rotating shaft is driven to the drive cylinder through a transmission belt; a one-way gear is unidirectionally driven connected to the outer wall of the rotating shaft, and a connecting gear is fixedly installed on the outer wall of one end of the reciprocating screw, the connecting gear meshing with the one-way gear.

[0011] Preferably, the rotating shaft has an inner groove, and a slidably connected abutting block is slidably connected inside the inner groove. One end of the abutting block is shaped like a right-angled triangle. Abutting spring is fixedly installed at one end of the abutting block inside the inner groove, and the other end of the abutting spring is fixedly connected to the inner wall of the inner groove. A limiting groove is formed on the inner wall of the one-way gear, and the limiting groove matches the abutting block. When the conveyor belt of this device outputs neodymium iron boron magnets, the drive cylinder will drive the rotating shaft to rotate through the transmission belt. At this time, the first spiral spring is compressed, and the inclined surface of the abutting block is... With the inclined surfaces of the limiting grooves facing each other, the rotation of the rotating shaft will not drive the one-way gear to rotate, and thus will not drive the reciprocating screw to rotate. When the stepper motor stops rotating, the rotating shaft resets and reverses under the action of the first spiral spring. At this time, the straight surface of the abutting inclined block inside the rotating shaft is opposite to the straight surface of the limiting groove, causing the rotating shaft to drive the one-way gear to rotate, and at the same time drive the reciprocating screw to rotate. This device, through the setting of the rotating shaft, can store the power of the conveyor belt and automatically release it when flipping is required, forming a linkage function, while saving resources and realizing the functions of automatic flipping and drying.

[0012] Preferably, a drive gear plate is slidably connected to the inner wall of the turning box. A compression spring is fixedly installed at one end of the drive gear plate inside the turning box, and the other end of the compression spring is fixedly connected to the inner side wall of the turning box. A bidirectional lead screw is rotatably connected inside the turning box, and friction grooves are provided at the connection point. A drive gear is fixedly installed on the outer wall of the bidirectional lead screw, and the drive gear meshes with the drive gear plate. A second spiral spring is installed on the outer wall of the bidirectional lead screw, and the other end of the second spiral spring is fixedly connected to the inner top wall of the turning box. A threaded block is threadedly connected to the outer wall of the bidirectional lead screw, and a turning panel is fixedly installed on the side wall of the threaded block. The turning panel is slidably connected inside a slide groove, which is located on the side wall of the turning box. In use, the device first moves the neodymium iron boron magnet to be dried by a conveyor belt, and then turns it over by the first inclined panel. The device stops when the stepper motor stops. At this time, the rotating shaft will drive the reciprocating screw to rotate, and the flipping box on its outer wall will move. The flipping panel will slide against the neodymium iron boron magnet. When it slides to the upper part of the second inclined panel, it will flip again. When the flipping box moves outward, one end of the drive tooth plate will abut against the inner wall of the drying box, causing the drive tooth plate to drive the bidirectional screw to rotate, causing the flipping panel to move upward. Then the flipping box moves inward, and at this time, it reverses under the action of the second spiral spring. Under the action of the friction groove, the bidirectional screw slowly resets and rotates. After the flipping box resets, the stepper motor starts again. When the flipping box is located in the middle of the reciprocating screw, the reciprocating screw does not rotate, and the flipping panel resets. This device, through the setting of the flipping panel, can ensure that the neodymium iron boron magnet is thoroughly flipped, preventing uneven drying. At the same time, after flipping, it can automatically move upward to avoid the phenomenon of repeated flipping and avoid obstructing the reset sliding neodymium iron boron magnet.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This device, through the arrangement of ventilation holes, fans, and air boxes, can ensure the blowing effect and drying efficiency. At the same time, the inclined panel can achieve the initial flipping effect, and then the flipping box can achieve a thorough flipping again, ensuring thorough flipping. After flipping, drying can continue, ensuring uniform drying and high drying efficiency, avoiding the phenomenon of one side drying while the bottom or other parts are not dried.

[0015] 2. This device, through the setting of the rotating shaft, can store the power of the conveyor belt and automatically release it when it is necessary to flip the dough, forming a linkage function, while saving resources and realizing the functions of automatic flipping and drying.

[0016] 3. The flip panel of this device ensures that the neodymium iron boron magnets are completely flipped over, preventing uneven drying. After flipping, the magnets can automatically move upwards to avoid re-flipping and prevent obstruction of the neodymium iron boron magnets during reset. Attached Figure Description

[0017] Figure 1 This is a three-dimensional frontal view of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the drying oven of this utility model;

[0019] Figure 3 This is a schematic diagram showing a cross-sectional view of the end face of the rotating shaft and the one-way gear of this utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the flip-top box of this utility model;

[0021] Figure 5 This is a schematic diagram of the interior of the flipping box of this utility model.

[0022] In the diagram: 1. Drying box; 2. Feed box; 3. Conveyor belt; 4. First inclined plate; 5. Second inclined plate; 6. Reciprocating screw; 7. Turning box; 8. Air box; 9. Drive cylinder; 10. Stepper motor; 11. Rotating shaft; 12. Transmission belt; 13. One-way gear; 14. Connecting gear; 15. Inner groove; 16. Pushing inclined block; 17. Pushing spring; 18. Restricting groove; 19. Drive gear plate; 20. Two-way screw; 21. Drive gear; 22. Compression spring; 23. Threaded block; 24. Turning plate; 25. Slide groove; 26. Second spiral spring. Detailed Implementation

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] A neodymium iron boron magnet drying device, as shown in the attached figure Figure 1-2As shown, the system includes a drying chamber 1, a feed box 2 mounted on the top of the drying chamber 1, a conveyor belt 3 installed inside the drying chamber 1, the drying chamber 1 located at one end of the top of the conveyor belt 3, a first inclined plate 4 and a second inclined plate 5 fixedly mounted on the side wall of the drying chamber 1, the first inclined plate 4 and the second inclined plate 5 being U-shaped, the bottom of the first inclined plate 4 and the second inclined plate 5 abutting against the outer surface of the conveyor belt 3, a reciprocating screw 6 rotatably connected to the inner side wall of the drying chamber 1, the reciprocating screw 6 being driven connected to the conveyor belt 3, and a turning box 7 threadedly connected to the outer wall of the reciprocating screw 6, the turning box 7 being connected to the conveyor belt 3. The outer surface is matched, and the conveyor belt 3 is equipped with an air box 8 inside. A fan is installed on the inner wall of the drying box 1, and ventilation holes are opened on the inner wall of the conveyor belt 3. This device can ensure the blowing effect and drying efficiency through the setting of ventilation holes, fan and air box 8. At the same time, the setting of inclined plate can achieve the initial flipping effect, and then the flipping box 7 can achieve a thorough flipping again, ensuring thorough flipping. After flipping, drying can continue, ensuring uniform drying of this device and high drying efficiency, avoiding the phenomenon that one side is dried while the bottom or other parts are not dried.

[0025] As attached Figure 1-2 As shown, a drive cylinder 9 is installed on the inner wall of the conveyor belt 3. The drive cylinder 9 is fixedly connected to the output end of the stepper motor 10. The stepper motor 10 is fixedly installed on the outer wall of the drying chamber 1. This device uses the stepper motor 10 for control. After outputting a distance, it performs drying and flipping to avoid the phenomenon of drying omissions and ensure that each piece can be flipped and dried.

[0026] As attached Figure 2 As shown, a rotating shaft 11 is rotatably connected to the inner wall of the drying chamber 1. A first spiral spring is fixedly installed on the outer wall of one end of the rotating shaft 11. The other end of the first spiral spring is fixedly connected to the inner wall of the drying chamber 1. The other end of the rotating shaft 11 is driven by the drive cylinder 9 through the transmission belt 12. A one-way gear 13 is unidirectionally driven connected to the outer wall of the rotating shaft 11. A connecting gear 14 is fixedly installed on the outer wall of one end of the reciprocating screw 6. The connecting gear 14 meshes with the one-way gear 13.

[0027] As attached Figure 3As shown, the rotating shaft 11 has an inner groove 15 inside, and a sliding abutment block 16 is slidably connected inside the inner groove 15. One end of the abutment block 16 is shaped like a right-angled triangle. An abutment spring 17 is fixedly installed at one end of the abutment block 16 inside the inner groove 15. The other end of the abutment spring 17 is fixedly connected to the inner wall of the inner groove 15. A limiting groove 18 is provided on the inner wall of the one-way gear 13, and the limiting groove 18 matches the abutment block 16. When the conveyor belt 3 outputs neodymium iron boron magnets, the drive cylinder 9 will drive the rotating shaft 11 to rotate through the transmission belt 12. At this time, the first spiral spring is compressed, and the inclined surface of the abutment block 16 and the limiting groove 18 are in contact with each other. With the inclined surfaces facing each other, the rotation of the rotating shaft 11 will not drive the one-way gear 13 to rotate, and thus will not drive the reciprocating screw 6 to rotate. When the stepper motor 10 stops rotating, the rotating shaft 11 will reset and reverse under the action of the first spiral spring. At this time, the straight surface of the abutting inclined block 16 inside the rotating shaft 11 is opposite to the straight surface of the limiting groove 18, so that the rotating shaft 11 drives the one-way gear 13 to rotate, and at the same time drives the reciprocating screw 6 to rotate. Through the setting of the rotating shaft 11, this device can store the power of the conveyor belt 3 and automatically release it when it is necessary to flip the surface, forming a linkage function, while saving resources and realizing the functions of automatic flipping and drying.

[0028] As attached Figure 4-5As shown, a drive gear plate 19 is slidably connected to the inner wall of the flipping box 7. A compression spring 22 is fixedly installed at one end of the drive gear plate 19 inside the flipping box 7, and the other end of the compression spring 22 is fixedly connected to the inner side wall of the flipping box 7. A double-acting lead screw 20 is rotatably connected inside the flipping box 7, and friction grooves are provided at the connection point. A drive gear 21 is fixedly installed on the outer wall of the double-acting lead screw 20, and the drive gear 21 meshes with the drive gear plate 19. A second spiral spring 2 is installed on the outer wall of the double-acting lead screw 20. 6. The other end of the second spiral spring 26 is fixedly connected to the inner top wall of the flipping box 7; a threaded block 23 is threadedly connected to the outer wall of the bidirectional lead screw 20, and a flipping panel 24 is fixedly installed on the side wall of the threaded block 23. The flipping panel 24 is slidably connected inside the slide groove 25, which is located on the side wall of the flipping box 7. When this device is in use, the neodymium iron boron magnet to be dried is first moved by the conveyor belt 3. At this time, it is flipped by the first inclined panel 4. When the stepper motor 10 stops, the rotating shaft 11 is turned. This will drive the reciprocating screw 6 to rotate, causing the flipping box 7 on its outer wall to shift. The flipping panel 24 slides against the neodymium iron boron magnet. When it slides to the upper part of the second inclined panel 5, it flips again. When the flipping box 7 moves outward, one end of the drive tooth plate 19 will abut against the inner wall of the drying chamber 1, causing the drive tooth plate 19 to drive the bidirectional screw 20 to rotate, causing the flipping panel 24 to move upward. Then the flipping box 7 moves inward, and at this time, under the action of the second spiral spring 26, it rotates... In reverse, under the action of friction, the bidirectional lead screw 20 slowly rotates to reset. After the flipping box 7 resets, the stepper motor starts again. When the flipping box 7 is located in the middle of the reciprocating lead screw 6, the reciprocating lead screw 6 does not rotate, and the flipping panel 24 resets. This device, through the setting of the flipping panel 24, can ensure that the neodymium iron boron magnet is thoroughly flipped, preventing uneven drying. At the same time, after flipping, it can automatically move upward to avoid re-flipping and prevent obstruction of the neodymium iron boron magnet during reset sliding.

[0029] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A neodymium iron boron magnet drying device, characterized in that, The equipment includes a drying chamber (1), a feeding box (2) installed on the top of the drying chamber (1), a conveyor belt (3) installed inside the drying chamber (1), the drying chamber (1) being located at one end of the top of the conveyor belt (3), a first inclined plate (4) and a second inclined plate (5) fixedly installed on the side wall of the drying chamber (1), the first inclined plate (4) and the second inclined plate (5) being U-shaped, and the bottom of the first inclined plate (4) and the second inclined plate (5) being flush with the conveyor belt. (3) The outer surface of the drying box (1) is abutted, and a reciprocating screw (6) is rotatably connected to the inner side wall of the drying box (1). The reciprocating screw (6) is driven to connect to the conveyor belt (3). A turning box (7) is threadedly connected to the outer wall of the reciprocating screw (6). The turning box (7) matches the outer surface of the conveyor belt (3). An air box (8) is provided inside the conveyor belt (3). A fan is installed on the inner wall of the drying box (1). Ventilation holes are opened on the inner wall of the conveyor belt (3).

2. The neodymium iron boron magnet drying device according to claim 1, characterized in that, A drive cylinder (9) is installed on the inner wall of the conveyor belt (3). The drive cylinder (9) is fixedly connected to the output end of the stepper motor (10). The stepper motor (10) is fixedly installed on the outer wall of the drying box (1).

3. The neodymium iron boron magnet drying device according to claim 2, characterized in that, A rotating shaft (11) is rotatably connected to the inner wall of the drying box (1). A first spiral spring is fixedly installed on the outer wall of one end of the rotating shaft (11). The other end of the first spiral spring is fixedly connected to the inner wall of the drying box (1). The other end of the rotating shaft (11) is driven to the drive cylinder (9) through a transmission belt (12). A one-way gear (13) is connected to the outer wall of the rotating shaft (11) for one-way drive, and a connecting gear (14) is fixedly installed on the outer wall of one end of the reciprocating screw (6), and the connecting gear (14) meshes with the one-way gear (13).

4. The neodymium iron boron magnet drying device according to claim 3, characterized in that, The rotating shaft (11) has an inner groove (15) inside, and a sliding abutment block (16) is slidably connected inside the inner groove (15). One end of the abutment block (16) is shaped like a right triangle. A resisting spring (17) is fixedly installed at one end of the abutment block (16) inside the inner groove (15). The other end of the resisting spring (17) is fixedly connected to the inner wall of the inner groove (15). A limiting groove (18) is opened on the inner wall of the one-way gear (13), and the limiting groove (18) matches the abutment block (16).

5. The neodymium iron boron magnet drying device according to claim 4, characterized in that, A drive toothed plate (19) is slidably connected to the inner wall of the flipping box (7). A compression spring (22) is fixedly installed at one end of the drive toothed plate (19) inside the flipping box (7). The other end of the compression spring (22) is fixedly connected to the inner wall of the flipping box (7). The inside of the flipping box (7) is rotatably connected to a two-way lead screw (20), and friction texture is provided at the connection. A drive gear (21) is fixedly installed on the outer wall of the two-way lead screw (20), and the drive gear (21) meshes with the drive gear plate (19). A second spiral spring (26) is installed on the outer wall of the two-way lead screw (20), and the other end of the second spiral spring (26) is fixedly connected to the inner top wall of the flipping box (7). A threaded block (23) is threadedly connected to the outer wall of the bidirectional lead screw (20). A flip panel (24) is fixedly installed on the side wall of the threaded block (23). The flip panel (24) is slidably connected inside the slide groove (25). The slide groove (25) is located on the side wall of the flip box (7).