Neodymium-iron-boron magnet material box feeding mechanism
By using magnetic levitation technology to solve the vibration and inertia problems of the material box during the conveying process, the stable levitation and uniform conveying of the material box are achieved, thus improving the production quality of neodymium iron boron magnets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ZHAOBAO MAGNET
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-19
AI Technical Summary
During the conveying process of NdFeB magnets in the hopper, mechanical transmission vibration and inertia cause the powder to shift position, resulting in uneven density distribution and reduced product quality.
Magnetic levitation technology is used to suspend the material box and the conveyor frame without contact. The stability of the material box is controlled by the magnetic field. The conveying speed and position of the material box are adjusted by the magnetic pole angle and magnetic field strength to reduce shaking and deviation.
It improves the stability of the material box conveying process, ensures uniform powder distribution, and enhances powder pressing effect and product quality.
Smart Images

Figure CN224257709U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feeding mechanism technology, specifically a feeding mechanism for neodymium iron boron magnet boxes. Background Technology
[0002] Neodymium iron boron (NdFeB) magnets are high-performance permanent magnet materials with excellent properties such as high energy product, high coercivity, and high energy density. As a high-performance permanent magnet material, NdFeB magnets play an indispensable role in modern industry and technology, and their applications continue to expand and deepen. In the production process of NdFeB magnets, NdFeB magnet hoppers not only serve to load and protect the magnets, but also improve production efficiency, ensure sintering quality, and enhance production safety, economy, consistency, and flexibility. They also meet the requirements of environmental protection and intelligent manufacturing, making them an indispensable tool in NdFeB magnet production.
[0003] During the conveying process of the feeding mechanism, the material box containing the raw material powder will vibrate during transmission, and the material box will generate inertia when starting or stopping, causing the powder inside the material box to shift. This results in uneven powder density during pressing, affecting the quality of pressing and reducing the performance of the magnet. Utility Model Content
[0004] The purpose of this invention is to provide a neodymium iron boron magnet feeding mechanism to solve the problems mentioned in the background art, such as vibration generated during mechanical transmission during the feeding process of the material box, and inertia of the material box during start-up and stop, which causes the powder position inside the material box to shift, resulting in uneven density distribution during the pressing process, affecting the performance of the magnet after pressing and reducing product quality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a neodymium iron boron magnet feeding mechanism, comprising a conveyor frame, a material box being disposed inside the conveyor frame, and a conveying assembly for feeding the material box being disposed on the inner wall of the conveyor frame, the conveying assembly including a through groove disposed at the bottom of the material box, a magnetic plate and an inclined plate disposed on the inner wall of the through groove, a positioning platform disposed on the inner wall of the conveyor frame, a plurality of storage slots and a sliding groove disposed on the top of the positioning platform, a driving plate disposed inside each of the plurality of storage slots, a protrusion disposed at one end of the driving plate, an extension rod disposed inside the sliding groove, a cavity disposed on one side of the storage slot, a spring and a slider disposed inside the cavity, and connecting ropes disposed at both ends of the slider;
[0006] Each of the inner walls of the slide grooves is equipped with a trigger button, and the inner wall of the cavity is equipped with an electromagnet.
[0007] Preferably, the material box is located inside the conveyor frame and is slidably connected to the inside of the conveyor frame, and the bottom through groove is sleeved outside the positioning platform. The magnetic plate is embedded and connected to the inner wall of the through groove, and the inclined plate is integrally formed with the inner wall of the through groove.
[0008] Preferably, a plurality of the storage slots and chutes are arranged in an array on the top of the positioning platform, the drive plate is located in the storage slot, and one end is rotatably connected to the inner wall of the storage slot through a fixed shaft. A magnet is installed on the outside of the drive plate and is magnetically repelled by the magnetic plate at the bottom of the material box.
[0009] Preferably, the extension rod is located inside the chute and is slidably connected to the inner wall of the chute. The inner wall of the chute is at an inclined angle. One end of the extension rod extends out of the chute and abuts against the inclined plate at the bottom of the material box.
[0010] Preferably, the slider is located inside the cavity and is slidably connected to the inner wall of the cavity. The two ends of the spring are respectively connected to the inner wall of the cavity and the slider. The connecting rope passes through the slider and extends to connect to the protrusion at one end of the drive plate and the outer wall of the extension rod.
[0011] Preferably, the trigger button is located on the inner wall of the slide groove, and the extension rod can abut against and press the trigger button when sliding in the slide groove. The trigger button is electrically connected to the electromagnet in the cavity. The electromagnet is located in the cavity and is magnetically attracted to the slider when activated.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. By installing an active connecting plate at the bottom of the material box and reserving a through groove on the outside of the plate, it can be fitted onto the positioning platform inside the conveyor frame, allowing the material box to slide inside the conveyor frame and positioning the sliding angle. At the same time, magnets are installed on the drive plate at the bottom of the material box and inside the positioning platform. The magnetic repulsion makes the material box and the positioning platform suspend and support each other. Since the magnetic levitation makes the material box and the positioning platform non-contact, it avoids vibration caused by friction and collision. Furthermore, the stability of the material box during the conveying process can be improved by adjusting the magnetic field, and the magnetic buffering of inertial force can prevent the powder position deviation caused by vibration and inertia, ensuring the uniformity of powder distribution and improving the powder pressing effect and product quality.
[0014] 2. When the material box is suspended in the conveyor frame by magnetic levitation, the inclined plate in the inner wall of the groove of the bottom plate of the material box can abut against the extension rod protruding on the positioning platform (because the plate is actively connected to the bottom of the material box and a sponge is installed to reduce the transmission and avoid affecting the material box), and push the extension rod to slide in the chute. Then, the connecting rope in the linkage structure pulls the drive plate on the positioning platform to rotate and tilt. By tilting, the magnetic pole angle is changed, thereby driving the material box to achieve conveying and feeding. The conveying speed of the material box can be controlled by the magnetic pole strength and the angle of the drive plate. This stable suspension state can effectively reduce the shaking and deviation of the material box during the conveying process and maintain the stability of the material box.
[0015] This invention drives the material box using magnetic levitation, allowing the material box to float and avoid contact with the conveyor frame. By controlling the magnetic field, it effectively avoids the effects of mechanical friction, collision, and inertial forces, improving the stability of the material box during conveying, ensuring uniform powder distribution, and enhancing the powder pressing effect and product quality. Attached Figure Description
[0016] Figure 1 This is an overall isometric view of the present invention;
[0017] Figure 2 This is a structural diagram of the bottom of the material box of this utility model;
[0018] Figure 3 This is an enlarged view of part A of this utility model;
[0019] Figure 4 This is an internal sectional view of the storage groove and slide of this utility model;
[0020] Figure 5 This is an enlarged view of part B of this utility model.
[0021] In the diagram: 1. Conveyor frame; 2. Material box; 3. Through groove; 301. Magnetic plate; 302. Inclined plate; 4. Positioning platform; 401. Storage groove; 5. Drive plate; 501. Protrusion; 6. Slide groove; 601. Extension rod; 602. Trigger button; 7. Cavity; 701. Spring; 8. Slider; 801. Connecting rope; 9. Electromagnet. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] All devices in this application adopt conventional models in the prior art, and the control method is through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field, so this application will not explain it in detail.
[0024] Please see the appendix Figures 1-5 As shown, a neodymium iron boron magnet feeding mechanism includes a conveyor frame 1, inside which a material box 2 is disposed. The material box 2 can load the raw material powder of neodymium iron boron magnets. The inner wall of the conveyor frame 1 is provided with a conveying assembly for feeding and driving the material box 2. The conveying assembly includes a through groove 3 disposed at the bottom of the material box 2. The through groove 3 is positioned with a positioning platform 4 inside the conveyor frame 1 and can be sleeved on the outside of the positioning platform 4 to position the angle of the material box 2 when it slides inside the conveyor frame 1. Furthermore, an active connecting plate is installed at the bottom of the material box 2. The outer surface of the sheet metal is pre-installed with a through groove 3. A sponge pad is installed in the active connection area between the sheet metal and the material box 2 to reduce vibration transmission. The inner wall of the through groove 3 is provided with a magnetic plate 301 and an inclined plate 302. When the inclined plate 302 slides on the positioning table 4, it can abut against the extension rod 601 protruding in the slide 6 and push the extension rod 601 to slide in the slide 6. The inner wall of the conveyor frame 1 is provided with a positioning table 4. The top of the positioning table 4 is provided with multiple storage slots 401 and slide 6. The storage slots 401 are used to store the drive plate 5, and the slide 6 can store the extension rod 5. The extension rod 601 is positioned by sliding at an angle, and when it slides within the slide groove 6, the tilt angle of the slide groove 6 causes the extension rod 601 to retract into the slide groove 6. Multiple storage slots 401 each contain a drive plate 5, and magnets are mounted on the outside of the drive plate 5, thus repelling the magnetism of the magnetic plate 301 within the through groove 3, pushing the material box 2 to suspend inside the conveyor frame 1, preventing direct contact between the material box 2 and the conveyor frame 1. One end of the drive plate 5 has a protrusion 501, and the slide groove 6 contains the extension rod 601. The storage slots 401... A cavity 7 is provided on the side for storing the slider 8 and positioning the slider 8 at an angle when it slides. A spring 701 and the slider 8 are provided inside the cavity 7. The spring 701 can push and support the slider 8 in the normal state. Both ends of the slider 8 are provided with connecting ropes 801. The two ends of the connecting ropes 801 are respectively connected to the protrusion 501 at the end of the drive plate 5 and the outer wall of the extension rod 601, so that the extension rod 601 is linked with the drive plate 5. When the extension rod 601 slides in the slide groove 6, it can drive the drive plate 5 to rotate in the storage groove 401.
[0025] Material box 2 is located inside conveyor frame 1 and is slidably connected to the inside of conveyor frame 1. The bottom through groove 3 is sleeved on the outside of positioning platform 4. Magnetic plate 301 is embedded and connected to the inner wall of through groove 3. Inclined plate 302 is integrally formed with the inner wall of through groove 3. Multiple storage slots 401 and sliding grooves 6 are arrayed and distributed on the top of positioning platform 4. Drive plate 5 is located inside storage slot 401, and one end is rotatably connected to the inner wall of storage slot 401 through a fixed shaft. Magnets are installed on the outside of drive plate 5 and are magnetically connected to magnetic plate 301 at the bottom of material box 2. The extension rod 601 is located in the slide groove 6 and is slidably connected to the inner wall of the slide groove 6. The inner wall of the slide groove 6 is at an inclined angle. One end of the extension rod 601 extends out of the slide groove 6 and abuts against the inclined plate 302 at the bottom of the material box 2. The slider 8 is located in the cavity 7 and is slidably connected to the inner wall of the cavity 7. The two ends of the spring 701 are respectively connected to the inner wall of the cavity 7 and the slider 8. The connecting rope 801 passes through the slider 8 and extends to connect to the protrusion 501 at one end of the drive plate 5 and the outer wall of the extension rod 601.
[0026] In this embodiment: During use, after weighing the powder, it is placed into the material box 2 and evenly distributed within the box. Then, the slot 3 of the bottom plate of the material box 2 is fitted onto the positioning platform 4 on the conveyor frame 1. Magnets within the drive plates 5 in the multiple storage slots 401 on the positioning platform 4 are activated to generate magnetic poles, which repel the magnetic plates 301 in the slot 3, thus lifting the material box 2 and suspending it above the positioning platform 4. Suspension reduces mechanical friction and collisions, effectively preventing vibration. Furthermore, adjusting the magnetic field strength improves the stability of the suspended material box 2, effectively reducing shaking and offset. Then, by controlling the rotation and tilt of the drive plate 5 at the head end, the direction of the magnetic poles is changed, causing the material box 2 to slide and suspend on the positioning platform 4. Simultaneously, as the inclined plate 302 in the slot 3 passes... When the slide rail 6 is in motion, the extension rod 601 protruding in the slide rail 6 abuts against it (because the plate is actively connected to the bottom of the material box 2 and a sponge is installed to reduce the transmission and reduce the impact of the abutment on the material box 2), and drives the extension rod 601 to slide in the slide rail 6. When sliding, the external connecting rope 801 pulls the slider 8 to slide and retract in the cavity 7, and at the same time drives the protrusion 501 at the other end of the connecting rope 801 to rotate, so that the drive plate 5 rotates and extends in the storage groove 401 and maintains the magnetic driving force on the material box 2 through the inclined magnetic pole direction, ensuring that the material box 2 can be in the conveying state. After the material box 2 passes, the inertia of the spring 701 and the drive plate 5 causes the drive plate 5 to return to the storage groove 401. At the same time, the connecting rope 801 and the slider 8 pull the extension rod 601 to slide and return in the slide rail 6, which is convenient for continuous use.
[0027] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figures 4-5Multiple slides 6 are equipped with trigger buttons 602 on their inner walls. After being triggered, trigger buttons 602 can control electromagnets 9 to be activated for a period of time. When activated, they can generate magnetic poles and magnetically attract sliders 8, thereby maintaining a pulling force on drive plate 5 for a period of time to ensure that the material box 2 can be supported as it passes through drive plate 5. Electromagnets 9 are also provided on the inner walls of cavity 7.
[0028] The trigger button 602 is located on the inner wall of the slide 6, and the extension rod 601 can abut against the trigger button 602 when sliding in the slide 6. The trigger button 602 is electrically connected to the electromagnet 9 in the cavity 7. The electromagnet 9 is located in the cavity 7 and is magnetically attracted to the slider 8 when activated.
[0029] In this embodiment: when the inclined plate 302 at the bottom of the material box 2 pushes the extension rod 601 to slide in the slide groove 6, it can press the trigger button 602 on the inner wall of the slide groove 6. The trigger button 602 activates the electromagnet 9 for a period of time, and it is magnetically attracted to the slider 8, maintaining the pulling force on the protrusion 501 at one end of the drive plate 5, so that the drive plate 5 is in an inclined state. When it is necessary to position the material box 2, the electromagnet 9 is activated and magnetically repelled by the slider 8. Thus, when the material box 2 and the extension rod 601 come into contact, the position of the slider 8 is supported and locked by the electromagnet 9. With the help of the connecting rope 801, the extension rod 601 cannot slide, thus locking the movement of the material box 2.
[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A neodymium iron boron magnet feeding mechanism, comprising a conveyor frame (1), wherein a material box (2) is disposed inside the conveyor frame (1), and a conveying component for feeding and driving the material box (2) is disposed on the inner wall of the conveyor frame (1), characterized in that: The conveying assembly includes a through groove (3) at the bottom of the material box (2), a magnetic plate (301) and an inclined plate (302) on the inner wall of the through groove (3), a positioning platform (4) on the inner wall of the conveying frame (1), a plurality of storage slots (401) and a sliding groove (6) on the top of the positioning platform (4), a drive plate (5) is provided inside each of the plurality of storage slots (401), a protrusion (501) is provided at one end of the drive plate (5), an extension rod (601) is provided inside the sliding groove (6), a cavity (7) is provided on one side of the storage slot (401), a spring (701) and a slider (8) are provided inside the cavity (7), and a connecting rope (801) is provided at both ends of the slider (8). Trigger buttons (602) are provided on the inner walls of multiple slides (6), and electromagnets (9) are provided on the inner walls of cavities (7).
2. The neodymium iron boron magnet feeding mechanism according to claim 1, characterized in that: The material box (2) is located inside the conveyor frame (1) and is slidably connected to the inside of the conveyor frame (1). The bottom through groove (3) is sleeved on the outside of the positioning platform (4). The magnetic plate (301) is embedded and connected to the inner wall of the through groove (3). The inclined plate (302) is integrally formed with the inner wall of the through groove (3).
3. The neodymium iron boron magnet feeding mechanism according to claim 1, characterized in that: Multiple storage slots (401) and slides (6) are arrayed on the top of the positioning platform (4). The drive plate (5) is located inside the storage slot (401), and one end is rotatably connected to the inner wall of the storage slot (401) through a fixed shaft. A magnet is installed on the outside of the drive plate (5), and it is magnetically repelled by the magnetic plate (301) at the bottom of the material box (2).
4. The neodymium iron boron magnet feeding mechanism according to claim 2, characterized in that: The extension rod (601) is located in the groove (6) and is slidably connected to the inner wall of the groove (6). The inner wall of the groove (6) is inclined. One end of the extension rod (601) extends out of the groove (6) and abuts against the inclined plate (302) at the bottom of the material box (2).
5. The neodymium iron boron magnet feeding mechanism according to claim 1, characterized in that: The slider (8) is located inside the cavity (7) and is slidably connected to the inner wall of the cavity (7). The two ends of the spring (701) are connected to the inner wall of the cavity (7) and the slider (8) respectively. The connecting rope (801) passes through the slider (8) and extends to the outer wall of the protrusion (501) and extension rod (601) at one end of the drive plate (5) respectively.
6. The neodymium iron boron magnet feeding mechanism according to claim 2, characterized in that: The trigger button (602) is located on the inner wall of the slide groove (6), and the extension rod (601) can press against the trigger button (602) when sliding in the slide groove (6). The trigger button (602) is electrically connected to the electromagnet (9) in the cavity (7). The electromagnet (9) is located in the cavity (7) and is magnetically attracted to the slider (8) when activated.