A stirring device for a neodymium-iron-boron magnet raw material mixing kettle

Abstract

The utility model discloses a kind of agitator for bonding neodymium iron boron magnet raw material mixing kettle, it includes mixing kettle stirrer: the right side of the mixing kettle stirrer is provided with fixed platform, the top of the fixed platform is provided with mounting bracket, the top of the mounting bracket is provided with storage tank.The utility model makes discharge nozzle move to the above of mixing kettle stirrer material cavity, when storage tank is communicated with piston extraction cylinder by three-way valve, the output end of cylinder one drives the piston rod of piston extraction cylinder to move right, the binder in storage tank is extracted, the output end of electric push rod is communicated with the valve core rotation of three-way valve by connecting rod, so that discharge nozzle and piston extraction cylinder are communicated, and the output end of cylinder two drives plugging rod to move upwards, so that discharge nozzle opens, then the piston rod of piston extraction cylinder is retracted left, so that binder is pressed out, i.e. it can reach the purpose that binder feeding amount is basically consistent each time, and then reduce neodymium iron boron magnetic powder and binder proportion error.

Description

Technical Field

[0001] This utility model belongs to the technical field of bonded NdFeB magnets, and in particular relates to a stirring device for a mixing tank for bonded NdFeB magnet raw materials. Background Technology

[0002] Bonded NdFeB magnets are synthetic magnets made by mixing NdFeB magnetic powder with a binder and then pressing them together. They combine the high magnetic properties of NdFeB materials with the flexible molding advantages of the bonding process. They are indispensable precision magnetic components in new energy, electronics, automotive and other fields. They do not require high-temperature sintering, but are made through low-temperature processes such as "mixing → pressing → curing", and can be directly processed into complex shapes.

[0003] When producing bonded NdFeB magnets, we typically use a mixing kettle agitator to mix the NdFeB magnetic powder and binder, and the two need to be added in a certain weight ratio. Because the binder has a certain viscosity, when we pour the weighed binder into the mixing kettle through a container, some binder will still remain on the inner wall of the container. Therefore, there will be a large error in the ratio of NdFeB magnetic powder to binder. Thus, we need a stirring device for the mixing kettle of bonded NdFeB magnet raw materials that can control the amount of binder added each time to be basically consistent, thereby reducing the error in the ratio of NdFeB magnetic powder to binder. Utility Model Content

[0004] The purpose of this invention is to provide a stirring device for mixing raw materials of bonded NdFeB magnets, which can control the amount of binder fed each time to be basically consistent, thereby reducing the error in the ratio of NdFeB magnetic powder to binder, so as to solve the above-mentioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A stirring device for a mixing tank for bonding NdFeB magnet raw materials, comprising a mixing tank mixer: a fixed platform is provided on the right side of the mixing tank mixer, a mounting frame is provided on the top of the fixed platform, a storage tank is provided on the top of the mounting frame, a three-way rotary valve is installed at the bottom of the storage tank, a discharge nozzle is installed on the left side of the three-way rotary valve, a piston suction cylinder is installed on the right side of the three-way rotary valve, a cylinder is fixedly installed on the top of the mounting frame, a connecting plate is fixedly connected to the output end of the cylinder, the connecting plate is fixedly connected to the right end of the piston rod of the piston suction cylinder, an electric push rod is installed on the top of the mounting frame, a connecting rod is fixedly connected to the surface of the valve core of the three-way rotary valve, the connecting rod is rotatably connected to the output end of the electric push rod, two slide rails are fixedly installed on the top of the fixed platform, two sliders are slidably connected to the surface of the slide rails, and the sliders are fixedly connected to the mounting frame.

[0006] Preferably, a second cylinder is fixedly installed on the top of the discharge nozzle, and a sealing rod is provided in the inner cavity of the discharge nozzle.

[0007] Preferably, the output end of the second cylinder is fixedly connected to one end of the sealing rod.

[0008] Preferably, a limiting rod is installed on the top of the mounting bracket, and the limiting rod is slidably connected to the connecting plate.

[0009] Preferably, a buffer plate is sleeved and slidably connected to the surface of the limiting rod.

[0010] Preferably, a limiting rod is installed on the top of the mounting bracket, and the connecting plate is slidably connected to the limiting rod.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model moves the discharge nozzle above the mixing chamber of the mixing vessel. When the storage tank is connected to the piston suction cylinder through the three-way rotary valve, the output end of cylinder one drives the piston rod of the piston suction cylinder to move to the right through the connecting plate, thus drawing the binder in the storage tank. The output end of the electric push rod drives the valve core in the three-way rotary valve to rotate through the connecting rod, so that the discharge nozzle is connected to the piston suction cylinder. At this time, the output end of cylinder two drives the sealing rod to move upward, so that the discharge nozzle is in the open state. Then, the piston rod of the piston suction cylinder retracts to the left, so that the binder is pressed out. This can achieve the purpose of controlling the amount of binder fed each time to be basically consistent, thereby reducing the error in the ratio of NdFeB magnetic powder to binder.

[0013] 2. This utility model utilizes the combined use of a limiting rod and a buffer plate. When the output end of cylinder one drives the piston rod of the piston extraction cylinder to move to the right through the connecting plate, the connecting plate slides to the right on the surface of the limiting rod, making the piston rod of the piston extraction cylinder extend more stably. When the output end of cylinder one drives the piston rod of the piston extraction cylinder to retract to the left through the connecting plate, the buffer plate makes the retraction of the piston rod of the piston extraction cylinder more stable. Attached Figure Description

[0014] in:

[0015] Figure 1 This is a perspective view of one embodiment of the present utility model;

[0016] Figure 2 This is a three-dimensional disassembled schematic diagram of the feeding structure according to an embodiment of the present invention;

[0017] Figure 3 This is a three-dimensional cross-sectional view of a three-way rotary valve and a discharge nozzle according to an embodiment of the present invention;

[0018] Figure 4 This is one embodiment of the present utility model. Figure 2 A magnified view of point A in the middle.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Mixing vessel agitator; 2. Fixed platform; 3. Mounting frame; 4. Storage tank; 5. Three-way rotary valve; 6. Discharge nozzle; 7. Piston suction cylinder; 8. Cylinder 1; 9. Connecting plate; 10. Electric push rod; 11. Connecting rod; 12. Slide rail; 13. Sliding block; 14. Cylinder 2; 15. Sealing rod; 16. Limiting rod; 17. Buffer plate. Detailed Implementation

[0021] In the following description, embodiments of the stirring device for the mixing vessel of bonded NdFeB magnet raw materials of the present invention will be described with reference to the accompanying drawings.

[0022] Figure 1-4 This invention illustrates a stirring device for a mixing vessel used in a bonding NdFeB magnet raw material mixing tank according to an embodiment of the present invention. The device includes a mixing vessel mixer 1. A fixed platform 2 is provided on the right side of the mixing vessel mixer 1, and a mounting frame 3 is provided on the top of the fixed platform 2. A limiting rod is mounted on the top of the mounting frame 3. A connecting plate 9 is slidably connected to the limiting rod. A limiting rod 16 is mounted on the top of the mounting frame 3. Through the cooperation of the limiting rod 16 and the buffer plate 17, when the output end of cylinder 8 drives the piston rod of the piston extraction cylinder 7 to move to the right via the connecting plate 9, the connecting plate 9 slides to the right on the surface of the limiting rod 16, making the piston rod of the piston extraction cylinder 7 extend more stably. When the output end of cylinder 8 drives the piston rod of the piston extraction cylinder 7 to retract to the left via the connecting plate 9, the buffer plate 17 makes the retraction of the piston rod of the piston extraction cylinder 7 more stable. The surface of the limiting rod 16 is fitted with and slidably connected to the buffer plate 17. The limiting rod 16 is slidably connected to the connecting plate 9. The top of the mounting frame 3... The unit is equipped with a storage tank 4, and a three-way rotary valve 5 is installed at the bottom of the storage tank 4. The three-way rotary valve 5 includes a shell, a valve core, and a valve core shaft. The valve core channel of the three-way rotary valve 5 is T-shaped. A discharge nozzle 6 is installed on the left side of the three-way rotary valve 5. A cylinder 2 14 is fixedly installed on the top of the discharge nozzle 6. The output end of the cylinder 2 14 is fixedly connected to one end of a sealing rod 15. A sealing rod 15 is provided in the inner cavity of the discharge nozzle 6. A piston suction cylinder 7 is installed on the right side of the three-way rotary valve 5. The top of the mounting bracket 3 is fixedly installed with... The device is equipped with a cylinder 8, the output end of which is fixedly connected to a connecting plate 9. The connecting plate 9 is fixedly connected to the right end of the piston rod of the piston suction cylinder 7. An electric push rod 10 is installed on the top of the mounting frame 3. A connecting rod 11 is fixedly connected to the surface of the valve core of the three-way rotary valve 5. The connecting rod 11 is rotatably connected to the output end of the electric push rod 10. Two slide rails 12 are fixedly installed on the top of the fixed platform 2. Two sliders 13 are slidably connected to the surface of the slide rails 12. The sliders 13 are fixedly connected to the mounting frame 3.

[0023] Working Principle: In use, the user pours the weighed NdFeB magnetic powder into the mixing tank mixer 1. The user then manually pushes the mounting bracket 3 to the left via the slider 13 on the slide rail 12, moving the discharge nozzle 6 above the material chamber of the mixing tank mixer 1. A slide rail clamp can be installed on the slide rail 12 to prevent the slider 13 from moving to the right. While the output end of the electric push rod 10 is still in the retracted state, the storage tank 4 is connected to the piston extraction cylinder 7 via the three-way rotary valve 5, but the discharge nozzle 6 is not connected to the piston extraction cylinder 7. At this time, the cylinder 8 is activated, causing its output end to drive the connecting plate 9 to move to the right. This causes the connecting plate 9 to drive the piston rod of the piston extraction cylinder 7 to move to the right, thus allowing the piston extraction cylinder 7 to extract the binder from the storage tank 4. Simultaneously, the electric push rod 10 is activated, causing its output end to drive the valve core in the three-way rotary valve 5 to rotate via the connecting rod 11, thus connecting the discharge nozzle 6 to the piston extraction cylinder 7. At this point, the output end of cylinder 2 14 drives the sealing rod 15 upward, causing the discharge nozzle 6 to change from the initial closed state to the open state. Then, the output end of cylinder 1 8 drives the piston rod of the piston extraction cylinder 7 to retract to the left, causing the piston rod to push the adhesive to the left, thus forcing the adhesive out of the discharge nozzle 6. Then, cylinder 2 14 drives the sealing rod 15 downward, thus closing the discharge nozzle 6 and preventing material leakage. Since the stroke distance of the piston rod of the piston extraction cylinder 7 to the right is fixed each time the output end of cylinder 1 8 drives it, the amount of material extracted by the piston extraction cylinder 7 each time is basically consistent, thereby reducing the error in the ratio of NdFeB magnetic powder to adhesive. Then, remove the slide rail clamp on the mounting bracket 3, move the mounting bracket 3 to the right, cover the mixing tank mixer 1, and start the drive system of the mixing tank mixer 1, so that the agitator in the mixing tank mixer 1 mixes and stirs the NdFeB magnetic powder and adhesive.

[0024] In summary, this stirring device for the mixing reactor of NdFeB magnet raw materials achieves the following: By moving the discharge nozzle 6 above the mixing chamber of the mixer 1, and connecting the storage tank 4 to the piston extraction cylinder 7 via the three-way rotary valve 5, the output end of cylinder 1 8 drives the piston rod of the piston extraction cylinder 7 to move to the right via the connecting plate 9, thus extracting the binder from the storage tank 4. The output end of the electric push rod 10 then drives the valve core in the three-way rotary valve 5 to rotate via the connecting rod 11, connecting the discharge nozzle 6 to the piston extraction cylinder 7. At this time, the output end of cylinder 2 14 drives the sealing rod 15 to move upward, opening the discharge nozzle 6. Then, the piston rod of the piston extraction cylinder 7 retracts to the left, forcing out the binder. This achieves the goal of controlling the amount of binder fed each time to be basically consistent, thereby reducing the error in the ratio of magnet raw material powder to binder.

Claims

1. A stirring device for a mixing vessel for bonded NdFeB magnet raw materials, characterized in that, The mixing vessel includes a mixer (1): a fixed platform (2) is provided on the right side of the mixer (1), a mounting frame (3) is provided on the top of the fixed platform (2), a storage tank (4) is provided on the top of the mounting frame (3), a three-way rotary valve (5) is installed at the bottom of the storage tank (4), a discharge nozzle (6) is installed on the left side of the three-way rotary valve (5), a piston suction cylinder (7) is installed on the right side of the three-way rotary valve (5), and a cylinder (8) is fixedly installed on the top of the mounting frame (3). The output end of the cylinder (8) is fixed. A connecting plate (9) is connected to the right end of the piston rod of the piston feed cylinder (7). An electric push rod (10) is installed on the top of the mounting frame (3). A connecting rod (11) is fixedly connected to the surface of the valve core of the three-way rotary valve (5). The connecting rod (11) is rotatably connected to the output end of the electric push rod (10). Two slide rails (12) are fixedly installed on the top of the fixed platform (2). Two sliders (13) are slidably connected to the surface of the slide rails (12). The sliders (13) are fixedly connected to the mounting frame (3).

2. The stirring device for a mixing kettle of a bonded Nd-Fe-B magnet raw material according to claim 1, characterized in that, A cylinder 2 (14) is fixedly installed on the top of the discharge nozzle (6), and a sealing rod (15) is provided in the inner cavity of the discharge nozzle (6).

3. The stirring device for a mixing kettle of a Nd-Fe-B magnet raw material according to claim 2, characterized in that, The output end of the cylinder (14) is fixedly connected to one end of the sealing rod (15).

4. The stirring device for a Nd-Fe-B magnet raw material mixing kettle according to claim 3, characterized in that, A limiting rod (16) is installed on the top of the mounting bracket (3), and the limiting rod (16) is slidably connected to the connecting plate (9).

5. The stirring device for a Nd-Fe-B magnet raw material mixing kettle according to claim 4, characterized in that, The surface of the limiting rod (16) is fitted with and slidably connected to a buffer plate (17).

6. The stirring device for a Nd-Fe-B magnet raw material mixing kettle according to claim 5, characterized in that, A limiting rod is installed on the top of the mounting bracket (3), and the connecting plate (9) is slidably connected to the limiting rod.

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