Press blanking device for sintering neodymium-iron-boron permanent magnet material

Abstract

The utility model relates to the technical field of production and processing of neodymium-iron-boron permanent magnet materials, and discloses a press blanking device for sintering neodymium-iron-boron permanent magnet materials, which comprises a shaft lever, a motor, a screening net, a fixed shaft, a sliding block, a spring, a first fixed block, a second fixed block, a first pushing plate, a placing plate, a stirring rod and a second pushing plate, the shaft rod is rotatably mounted in the tank body, the motor is fixedly mounted at the top of the tank body, the screening net is slidably mounted on the surface of the shaft rod, the fixing shaft is fixedly mounted in the tank body, and the sliding block is slidably mounted on the surface of the fixing shaft. According to the press discharging device for sintering the neodymium-iron-boron permanent magnet material, through the driving motor, the screening net can screen metal impurities and dust contained in neodymium-iron-boron magnetic powder in the first raw material bin, then metal alloy nanometer powder is added into the neodymium-iron-boron magnetic powder through the second raw material bin, stirring and mixing are conducted through the stirring rod, the raw material ratio is accurate, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of NdFeB permanent magnet materials, in particular to a press unloading device for sintering NdFeB permanent magnet materials. Background Art

[0002] NdFeB permanent magnet is an iron-based permanent magnet material manufactured by powder metallurgy. The process of sintering NdFeB permanent magnet material is batching, smelting, hydrogen crushing, air flow grinding, molding, cold pressing, oil stripping, sintering and post-processing. During the molding process, if the NdFeB magnetic powder raw material used contains impurities, the surface of the NdFeB permanent magnet material will crack, fall off, break and segregate after molding, which will affect the magnetic properties, temperature stability and corrosion resistance of the NdFeB permanent magnet material.

[0003] The patent with application number 201821034240.3 discloses a press unloading device for sintered NdFeB permanent magnet material, including a box body, a first raw material bin, a second raw material bin, a stirring bin and a filtering bin. The first raw material bin and the second raw material bin are provided above the box body, and the first raw material bin and the second raw material bin are connected to the top of the stirring bin below the discharge port. A motor is provided above the box body, and a rotating shaft is provided below the motor through the stirring bin, and a stirring impeller is provided on the rotating shaft. A stirring bin discharge port is provided below the stirring bin, and the discharge port is connected to the top of the filtering bin below, and a material holding trough is provided in the filtering bin.

[0004] The press unloading device for sintered NdFeB permanent magnet material can fully stir the raw materials in the first raw material bin and the second raw material bin through the stirring impeller provided in the stirring bin, thereby reducing the labor consumption caused by manually mixing and stirring the raw materials separately and improving production efficiency. However, there are still areas for improvement. For example, the device directly stirs and then screens, the raw material ratio is not accurate, and the screening efficiency of the device is low, which cannot meet current needs. Utility Model Content

[0005] The utility model aims to provide a press unloading device for sintered NdFeB permanent magnet materials to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a press unloading device for sintered NdFeB permanent magnet material, comprising a support body, a tank body, a second raw material bin, a first raw material bin, and a screening and stirring device, wherein the tank body is arranged on the top of the support body, the second raw material bin is arranged on the side of the tank body, the first raw material bin is arranged on the side of the tank body, and the screening and stirring device is arranged inside the tank body.

[0007] The screening and stirring device consists of a shaft, a motor, a screening net, a fixed shaft, a slider, a spring, a first fixed block, a second fixed block, a first push plate, a placement plate, a stirring rod, and a second push plate. The shaft is rotatably installed inside the tank body, the motor is fixedly installed on the top of the tank body, the screening net is slidably installed on the surface of the shaft, the fixed shaft is fixedly installed inside the tank body, the slider is slidably installed on the surface of the fixed shaft, the spring is sleeved on the surface of the fixed shaft, the first fixed block is fixedly installed on the top of the screening net, the second fixed block is fixedly installed on the surface of the shaft, the first push plate is fixedly installed on the surface of the shaft, the placement plate is rotatably installed on the surface of the shaft, the stirring rod is fixedly installed on the surface of the shaft, and the second push plate is fixedly installed on the surface of the shaft.

[0008] Preferably, the output shaft of the motor is fixedly connected to the top of the shaft rod, and the shaft rod can be rotated by driving the motor.

[0009] Preferably, the side of the screening net is fixedly connected to the slider, and this arrangement enables the screening net to move along with the slider on the surface of the fixed shaft.

[0010] Preferably, one end of the spring is fixedly connected to the tank body, and the other end is fixedly connected to the slider, and a spring is provided for resetting the slider.

[0011] Preferably, the first push plate is in close contact with the top of the placement plate, and the second push plate is in close contact with the bottom end of the inner wall of the tank body. The first push plate can push the NdFeB magnetic powder on the surface of the placement plate, and the second push plate can push the metal alloy nanopowder and NdFeB magnetic powder mixture, which facilitates material unloading.

[0012] Preferably, the side surface of the placement plate is fixedly connected to the inner wall of the tank body, the surface of the placement plate and the bottom of the tank body are both provided with discharge pipes, and the surface of the discharge pipe is provided with an electromagnetic valve, and the opening and closing of the discharge pipe can be controlled by controlling the electromagnetic valve.

[0013] Preferably, the second raw material bin is arranged between the bottom of the placement plate and the bottom end of the inner wall of the tank body, and the first raw material bin is arranged between the top of the screening net and the top end of the inner wall of the tank body. This arrangement can screen the metal impurities and dust contained in the NdFeB magnetic powder in the first raw material bin through the screening net, and then add the metal alloy nanopowder into the NdFeB magnetic powder through the second raw material bin for stirring and mixing.

[0014] Preferably, the first fixing block matches the second fixing block, and the second fixing block rotates with the shaft rod to periodically squeeze the first fixing block.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The press unloading device for sintering NdFeB permanent magnet material can use a driving motor to enable a screening net to screen out metal impurities and dust contained in the NdFeB magnetic powder in the first raw material bin, and then add the metal alloy nanopowder into the NdFeB magnetic powder from the second raw material bin and stir and mix them through a stirring rod. The raw material ratio is accurate and the practicability is high.

[0017] (2) The press unloading device for sintered NdFeB permanent magnet material drives the motor, and the second fixed block rotates with the shaft rod, which can periodically squeeze the first fixed block. Under the action of the spring, the screening net can move up and down, and the screening effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the fixed shaft, slider and spring structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the first push plate, the stirring rod and the second push plate of the utility model.

[0022] In the figure: 1. support body; 2. tank body; 3. second raw material bin; 4. first raw material bin; 5. screening and stirring device; 501. shaft rod; 502. motor; 503. screening net; 504. fixed shaft; 505. slider; 506. spring; 507. first fixed block; 508. second fixed block; 509. first push plate; 510. placement plate; 511. stirring rod; 512. second push plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: a press unloading device for sintered NdFeB permanent magnet material, comprising a support body 1, a tank body 2, a second raw material bin 3, a first raw material bin 4, and a screening and stirring device 5. The tank body 2 is arranged on the top of the support body 1, the second raw material bin 3 is arranged on the side of the tank body 2, the first raw material bin 4 is arranged on the side of the tank body 2, and the screening and stirring device 5 is arranged inside the tank body 2.

[0025] The screening and stirring device 5 is composed of a shaft 501, a motor 502, a screening net 503, a fixed shaft 504, a slider 505, a spring 506, a first fixed block 507, a second fixed block 508, a first push plate 509, a placement plate 510, a stirring rod 511, and a second push plate 512. The shaft 501 is rotatably installed inside the tank body 2, the motor 502 is fixedly installed on the top of the tank body 2, the output shaft of the motor 502 is fixedly connected to the top of the shaft 501, and the motor 502 is driven to rotate the shaft 501. The screening net 503 is slidably installed on the surface of the shaft 501, and the second raw material bin 3 is arranged at the bottom and the placement plate 510. The first raw material bin 4 is arranged between the bottom of the inner wall of the tank body 2, and the top of the inner wall of the tank body 2 and the top of the sieve net 503. The arrangement can screen the metal impurities and dust contained in the NdFeB magnetic powder in the first raw material bin 4 through the sieve net 503, and then add the metal alloy nanopowder to the NdFeB magnetic powder through the second raw material bin 3 for stirring and mixing. The fixed shaft 504 is fixedly installed inside the tank body 2, and the slider 505 is slidably installed on the surface of the fixed shaft 504. The side of the sieve net 503 is fixedly connected to the slider 505. The arrangement can make the sieve net 503 move on the surface of the fixed shaft 504 with the slider 505. The spring 506 is sleeved on the fixed shaft 50 4, one end of the spring 506 is fixedly connected to the tank body 2, and the other end is fixedly connected to the slider 505, a spring 506 is provided for resetting the slider 505, a first fixed block 507 is fixedly installed on the top of the screening net 503, a second fixed block 508 is fixedly installed on the surface of the shaft 501, the first fixed block 507 and the second fixed block 508 match, the second fixed block 508 rotates with the shaft 501, and can periodically squeeze the first fixed block 507, a first push plate 509 is fixedly installed on the surface of the shaft 501, a placement plate 510 is rotatably installed on the surface of the shaft 501, and the side of the placement plate 510 and the inner wall of the tank body 2 Fixedly connected, a discharge pipe is provided on the surface of the placement plate 510 and the bottom of the tank body 2, and a solenoid valve is provided on the surface of the discharge pipe. By controlling the solenoid valve, the opening and closing of the discharge pipe can be controlled. The stirring rod 511 is fixedly installed on the surface of the shaft 501, and the second push plate 512 is fixedly installed on the surface of the shaft 501. The first push plate 509 is in close contact with the top of the placement plate 510, and the second push plate 512 is in close contact with the bottom end of the inner wall of the tank body 2. The NdFeB magnetic powder on the surface of the placement plate 510 can be pushed by the first push plate 509, and the metal alloy nanopowder and NdFeB magnetic powder mixture can be pushed by the second push plate 512, so as to facilitate unloading.

[0026] When in use, the motor 502 is driven to rotate the shaft 501, and the metal impurities and dust contained in the NdFeB magnetic powder in the first raw material bin 4 can be screened through the screening net 503, and the solenoid valve on the surface of the placement plate 510 is controlled, and the NdFeB magnetic powder on the surface of the placement plate 510 is pushed by the first push plate 509, so that the NdFeB magnetic powder enters the bottom end of the inner wall of the tank body 2, and then the metal alloy nanopowder is added to the NdFeB magnetic powder by the second raw material bin 3 and stirred and mixed by the stirring rod 511, and the bottom solenoid valve of the tank body 2 is controlled, and finally the second push plate 512 pushes the raw material to discharge the mixed raw material.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A press feeding device for sintered NdFeB permanent magnet material, comprising a support body (1), a tank body (2), a second raw material bin (3), a first raw material bin (4), and a screening and stirring device (5), characterized in that: The tank body (2) is arranged on the top of the support body (1), the second raw material bin (3) is arranged on the side of the tank body (2), the first raw material bin (4) is arranged on the side of the tank body (2), and the screening and stirring device (5) is arranged inside the tank body (2); The screening and stirring device (5) is composed of a shaft (501), a motor (502), a screening net (503), a fixed shaft (504), a slider (505), a spring (506), a first fixed block (507), a second fixed block (508), a first push plate (509), a placement plate (510), a stirring rod (511), and a second push plate (512); the shaft (501) is rotatably mounted inside the tank body (2); the motor (502) is fixedly mounted on the top of the tank body (2); the screening net (503) is slidably mounted on the surface of the shaft (501); and the fixed shaft (504) is fixedly mounted on the tank body (2). The slider (505) is slidably mounted on the surface of the fixed shaft (504), the spring (506) is sleeved on the surface of the fixed shaft (504), the first fixed block (507) is fixedly mounted on the top of the screening net (503), the second fixed block (508) is fixedly mounted on the surface of the shaft (501), the first push plate (509) is fixedly mounted on the surface of the shaft (501), the placement plate (510) is rotatably mounted on the surface of the shaft (501), the stirring rod (511) is fixedly mounted on the surface of the shaft (501), and the second push plate (512) is fixedly mounted on the surface of the shaft (501).

2. A press unloading device for sintered NdFeB permanent magnet material according to claim 1, characterized in that: The output shaft of the motor (502) is fixedly connected to the top of the shaft (501).

3. A press unloading device for sintered NdFeB permanent magnet material according to claim 1, characterized in that: The side surface of the screening net (503) is fixedly connected to the sliding block (505).

4. A press unloading device for sintered NdFeB permanent magnet material according to claim 1, characterized in that: One end of the spring (506) is fixedly connected to the tank body (2), and the other end is fixedly connected to the slider (505).

5. A press unloading device for sintered NdFeB permanent magnet material according to claim 1, characterized in that: The first pushing plate (509) is in close contact with the top of the placing plate (510), and the second pushing plate (512) is in close contact with the bottom end of the inner wall of the tank body (2).

6. A press unloading device for sintered NdFeB permanent magnet material according to claim 1, characterized in that: The side surface of the placement plate (510) is fixedly connected to the inner wall of the tank body (2), the surface of the placement plate (510) and the bottom of the tank body (2) are both provided with discharge pipes, and the surface of the discharge pipes is provided with solenoid valves.

7. A press unloading device for sintered NdFeB permanent magnet material according to claim 1, characterized in that: The second raw material bin (3) is arranged between the bottom of the placement plate (510) and the bottom end of the inner wall of the tank body (2), and the first raw material bin (4) is arranged between the top of the screening net (503) and the top end of the inner wall of the tank body (2).

8. A press unloading device for sintered NdFeB permanent magnet material according to claim 1, characterized in that: The first fixing block (507) and the second fixing block (508) match each other.

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