Sealed mixing equipment for preparing bonded rare earth permanent magnet

By introducing the grinding functions of hydraulic rods, motor covers, and abrasive discs into the rare earth permanent magnet bonding mixing equipment, as well as the precise control of weighing sensors and discharge valves, the problems of uneven raw material distribution and inaccurate discharge are solved, thereby improving the performance and efficiency of the mixing equipment.

CN223887892UActive Publication Date: 2026-02-10CHENGDU TECHSUN MAGNETS CO LTD
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Patent Information

Application Number
CN202520525592.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-02-10
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

Existing rare earth permanent magnet bonding and mixing equipment lacks grinding function, resulting in uneven raw material particle size and inability to accurately control the discharge rate, which affects processing efficiency.

Method used

A spare sealed mixing device for bonding rare earth permanent magnets was designed. It is equipped with a hydraulic rod, a motor cover, an abrasive disc, a weighing sensor, and multiple discharge valves. The hydraulic rod drives the abrasive disc to grind the raw materials, the weighing sensor detects the weight, and the controller precisely controls the discharge volume.

Benefits of technology

It achieves uniform powdering and precise material discharge of raw materials, improving the performance and processing efficiency of the mixing equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223887892U_ABST
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Abstract

The utility model relates to the technical field of preparation of bonded rare earth permanent magnets, in particular to sealed mixing equipment for preparation of bonded rare earth permanent magnets, which comprises a stirring barrel, the top of the stirring barrel is connected with a hydraulic rod through a bolt, and the output end of the hydraulic rod penetrates into an inner cavity of the stirring barrel and is connected with a motor cover through a bolt. And the bottom of an inner cavity of the motor cover is connected with a first motor through bolts, the output end of the first motor penetrates through the motor cover and is connected with a material grinding disc through bolts, and the tops of the two sides of an inner cavity of the stirring barrel are connected with material grinding grooves through bolts. Through cooperation of the hydraulic rod, the motor cover, the grinding disc and the third discharging valve, the grinding function is achieved, the controller starts the hydraulic rod, the hydraulic rod drives the grinding disc to move downwards, the controller starts the third discharging valve to discharge raw materials to the grinding groove, and the controller starts the first motor to drive the grinding disc to rotate to grind the raw materials.
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Description

Technical Field

[0001] This utility model relates to the field of bonding rare earth permanent magnet preparation technology, specifically a spare sealed mixing device for bonding rare earth permanent magnets. Background Technology

[0002] Permanent magnets are magnets that can retain a high remanence for a long time in an open-circuit state, such as natural magnets and artificial magnets. They are also called hard magnets. They are not easy to lose magnetism or be magnetized. When preparing bonded rare earth permanent magnets, thermosetting resins, coupling agents and crystallized rare earth permanent magnet powder are usually stirred and mixed, which requires the use of mixing equipment.

[0003] A search revealed that the announcement number is CN221412924U, and the name is "A spare sealing mixing device for bonding rare earth permanent magnet system, including a processing cylinder." Research and analysis revealed that although it has advantages such as auxiliary crushing during use, it also has the following disadvantages to a certain extent.

[0004] For example, if the raw materials do not have a grinding function, there may be large particles or uneven particle sizes in the raw materials. If they are mixed and stirred without grinding, the mixing effect will be poor, which will greatly reduce the performance. In addition, if the existing mixing equipment for permanent magnet processing does not have a weighing function, it will be unable to accurately control the discharge volume during use, which will be detrimental to subsequent processing and reduce processing efficiency. In order to solve the above technical problems, we have designed a spare sealed mixing equipment for bonding rare earth permanent magnets. Utility Model Content

[0005] The purpose of this invention is to provide a spare sealed mixing device for bonding rare earth permanent magnets, which has the advantages of grinding and weighing functions, and solves the problems of existing mixing devices that cannot process raw materials into uniform powder and cannot accurately control the discharge amount during use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spare sealed mixing device for bonding rare earth permanent magnets, comprising a mixing tank, a hydraulic rod bolted to the top of the mixing tank, the output end of the hydraulic rod penetrating into the inner cavity of the mixing tank and bolted to a motor cover, a first motor bolted to the bottom of the inner cavity of the motor cover, the output end of the first motor penetrating into the motor cover and bolted to an abrasive disc, abrasive grooves bolted to the top of both sides of the inner cavity of the mixing tank, a rotating shaft bolted to the bottom of the abrasive disc, a mixing rod bolted to both sides of the rotating shaft, a scraper bolted to the opposite side of the mixing rod, a weighing mechanism bolted to the bottom of the inner cavity of the mixing tank, the weighing mechanism including a weighing sensor, and a controller bolted to the top of the front side of the mixing tank.

[0007] Preferably, the top of the weighing sensor is bolted to a collection bucket, the bottom of the inner cavity of the collection bucket is bolted to a second guide plate, the bottom of the second guide plate is connected to a first discharge valve, the bottom of the mixing tank is provided with a through hole, the bottom end of the first discharge valve passes through the collection bucket and the through hole in sequence, and the output end of the controller is unidirectionally electrically connected to the first discharge valve.

[0008] Preferably, the bottom of both sides of the inner cavity of the mixing tank is bolted to a first guide plate, the bottom of the first guide plate is connected to a second discharge valve, and the output end of the controller is unidirectionally electrically connected to the second discharge valve.

[0009] Preferably, the bottom of the abrasive tank is provided with a circular hole, the bottom end of the rotating shaft passes through the circular hole, and the opposite side of the scraper is in contact with the inner wall of the mixing tank.

[0010] Preferably, both sides of the top of the mixing tank are connected to a feeding hopper, the bottom of the feeding hopper is connected to a third discharge valve, the bottom end of the third discharge valve extends into the inner cavity of the mixing tank, and the output end of the controller is unidirectionally electrically connected to the third discharge valve.

[0011] Preferably, each of the four corners of the bottom of the mixing tank is bolted with a support column, the output end of the controller is unidirectionally electrically connected to the hydraulic rod and the first motor, and the controller is bidirectionally electrically connected to the weighing sensor.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model has a grinding function through the cooperation of hydraulic rod, motor cover, grinding disc and third discharge valve. The controller starts the hydraulic rod, which drives the grinding disc to move downward. The controller starts the third discharge valve to discharge the raw material into the grinding tank. The controller starts the first motor to drive the grinding disc to rotate and grind the raw material.

[0014] 2. This utility model has a weighing function through the cooperation of a first discharge valve, a collection bucket, a weighing sensor, and a second discharge valve. The controller starts the second discharge valve to discharge the raw material into the collection bucket, and the weighing sensor detects the weight. When discharge is required, the controller starts the first discharge valve, and the weighing sensor detects the weight in real time and discharges the raw material of the required weight. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional sectional view of the mixing tank structure of this utility model;

[0017] Figure 3 This is a partial three-dimensional sectional view of the present invention;

[0018] Figure 4 This is a three-dimensional sectional view of the weighing mechanism of this utility model.

[0019] In the diagram: 1. Mixing tank; 2. Hydraulic rod; 3. Motor cover; 4. First motor; 5. Grinding disc; 6. Grinding trough; 7. Rotating shaft; 8. Mixing rod; 9. Scraper; 10. Weighing mechanism; 11. Weighing sensor; 12. Controller; 13. Collection tank; 14. Second guide plate; 15. First discharge valve; 16. First guide plate; 17. Second discharge valve; 18. Feed hopper; 19. Third discharge valve; 20. Support column. Detailed Implementation

[0020] Please see Figures 1-4 A spare sealed mixing device for bonding rare earth permanent magnets includes a mixing tank 1. A hydraulic rod 2 is bolted to the top of the mixing tank 1. The output end of the hydraulic rod 2 extends into the inner cavity of the mixing tank 1 and is bolted to a motor cover 3. A first motor 4 is bolted to the bottom of the inner cavity of the motor cover 3. The output end of the first motor 4 extends into the motor cover 3 and is bolted to an abrasive disc 5. Abrasive grooves 6 are bolted to the top of both sides of the inner cavity of the mixing tank 1. A rotating shaft 7 is bolted to the bottom of the abrasive disc 5. A stirring rod 8 is bolted to both sides of the rotating shaft 7. A scraper 9 is bolted to the opposite side of the stirring rod 8. A weighing mechanism 10 is bolted to the bottom of the inner cavity of the mixing tank 1. The weighing mechanism 10 includes a weighing sensor 11. A controller 12 is bolted to the top of the front side of the mixing tank 1.

[0021] Please see Figure 2 and Figure 4 The top of the weighing sensor 11 is bolted to a collection bucket 13. The bottom of the inner cavity of the collection bucket 13 is bolted to a second guide plate 14. By setting the second guide plate 14, the raw material is guided to avoid incomplete discharge. The bottom of the second guide plate 14 is connected to a first discharge valve 15. The bottom of the mixing tank 1 has a through hole. The bottom end of the first discharge valve 15 passes through the collection bucket 13 and the through hole in sequence. The output end of the controller 12 is unidirectionally electrically connected to the first discharge valve 15.

[0022] Please see Figure 2 The bottom of both sides of the inner cavity of the mixing tank 1 is connected to the first guide plate 16 by bolts. The bottom of the first guide plate 16 is connected to the second discharge valve 17. By setting the second discharge valve 17, the raw materials can be discharged to the collection tank 13 after mixing. The output end of the controller 12 is unidirectionally electrically connected to the second discharge valve 17.

[0023] Please see Figure 2The bottom of the abrasive tank 6 has a round hole, and the bottom end of the rotating shaft 7 passes through the round hole. The opposite side of the scraper 9 is in contact with the inner wall of the mixing tank 1. By setting the scraper 9, the raw materials attached to the inner wall of the mixing tank 1 can be scraped off.

[0024] Please see Figure 2 Both sides of the top of the mixing tank 1 are connected to the feed hopper 18, and the bottom of the feed hopper 18 is connected to the third discharge valve 19. By setting the third discharge valve 19, the raw material can be discharged into the interior of the mixing tank 1. The bottom end of the third discharge valve 19 extends into the inner cavity of the mixing tank 1, and the output end of the controller 12 is unidirectionally electrically connected to the third discharge valve 19.

[0025] Please see Figure 1 The four corners of the bottom of the mixing tank 1 are all connected to support columns 20 by bolts. By setting the support columns 20, the mixing tank 1 is supported. The output end of the controller 12 is unidirectionally connected to the hydraulic rod 2 and the first motor 4, respectively. The controller 12 is bidirectionally connected to the weighing sensor 11.

[0026] In use, the user adds raw materials to the feed hopper 18. The controller 12 activates the hydraulic rod 2, which drives the motor cover 3 and the grinding disc 5 to move downwards. The controller 12 then activates the third discharge valve 19 to discharge the raw materials into the grinding tank 6. The controller 12 then activates the first motor 4, whose output rotates to drive the grinding disc 5 to grind the raw materials. After grinding, the controller 12 activates the hydraulic rod 2, which drives the grinding disc 5 to move upwards. The ground raw materials then move downwards through the round hole. The controller 12 then activates the first motor 4, which drives the stirring rod 8 to rotate via the rotating shaft 7 to mix and stir the raw materials. The rotating shaft 7 drives the scraper 9 to rotate, scraping off the powder adhering to the inner wall of the mixing tank 1, making the raw materials more evenly mixed. After stirring, the controller 12 activates the second discharge valve 17 to discharge the raw materials into the collection tank 13. The weighing sensor 11 detects the weight. When discharge is required, the controller 12 activates the first discharge valve 15, and the weighing sensor 11 detects the weight in real time and discharges the required weight of raw materials.

[0027] In summary, this bonding rare earth permanent magnet system backup sealed mixing device, through the cooperation of hydraulic rod 2, motor cover 3, abrasive disc 5, third discharge valve 19, first discharge valve 15, collection bucket 13, weighing sensor 11, and second discharge valve 17, solves the problems of existing mixing equipment being unable to process raw materials into uniform powder and unable to accurately control the discharge amount during use.

Claims

1. A spare sealed mixing device for bonding rare earth permanent magnets, comprising a mixing tank (1), characterized in that: The top of the mixing tank (1) is bolted to a hydraulic rod (2). The output end of the hydraulic rod (2) passes through the inner cavity of the mixing tank (1) and is bolted to a motor cover (3). The bottom of the inner cavity of the motor cover (3) is bolted to a first motor (4). The output end of the first motor (4) passes through the motor cover (3) and is bolted to an abrasive disc (5). The tops of both sides of the inner cavity of the mixing tank (1) are bolted to abrasive grooves (6). The bottom of the abrasive disc (5) is bolted to a rotating shaft (7). Both sides of the rotating shaft (7) are bolted to a stirring rod (8). The opposite side of the stirring rod (8) is bolted to a scraper (9). The bottom of the inner cavity of the mixing tank (1) is bolted to a weighing mechanism (10). The weighing mechanism (10) includes a weighing sensor (11). The top of the front side of the mixing tank (1) is bolted to a controller (12).

2. The standby sealing and mixing device for bonding rare earth permanent magnets according to claim 1, characterized in that: The top of the weighing sensor (11) is connected to a collection bucket (13) by bolts. The bottom of the inner cavity of the collection bucket (13) is connected to a second guide plate (14) by bolts. The bottom of the second guide plate (14) is connected to a first discharge valve (15). The bottom of the mixing tank (1) is provided with a through hole. The bottom end of the first discharge valve (15) passes through the collection bucket (13) and the through hole in sequence. The output end of the controller (12) is unidirectionally electrically connected to the first discharge valve (15).

3. The standby sealing and mixing device for bonding rare earth permanent magnets according to claim 1, characterized in that: The bottom of both sides of the inner cavity of the mixing tank (1) is connected to a first guide plate (16) by bolts. The bottom of the first guide plate (16) is connected to a second discharge valve (17). The output end of the controller (12) is unidirectionally electrically connected to the second discharge valve (17).

4. The standby sealing and mixing device for bonding rare earth permanent magnets according to claim 1, characterized in that: The bottom of the abrasive tank (6) is provided with a round hole, the bottom end of the rotating shaft (7) passes through the round hole, and the opposite side of the scraper (9) is in contact with the inner wall of the mixing tank (1).

5. The standby sealing and mixing device for bonding rare earth permanent magnets according to claim 1, characterized in that: Both sides of the top of the mixing tank (1) are connected to feed hoppers (18), and the bottom of the feed hoppers (18) is connected to a third discharge valve (19). The bottom end of the third discharge valve (19) extends into the inner cavity of the mixing tank (1), and the output end of the controller (12) is unidirectionally electrically connected to the third discharge valve (19).

6. The standby sealing and mixing device for bonding rare earth permanent magnets according to claim 1, characterized in that: The four corners of the bottom of the mixing tank (1) are all connected to support columns (20) by bolts. The output end of the controller (12) is unidirectionally connected to the hydraulic rod (2) and the first motor (4), respectively. The controller (12) is bidirectionally connected to the weighing sensor (11).

Citation Information

Patent Citations

  • Sealed mixing equipment for preparing bonded rare earth permanent magnet

    CN221412924U