Permanent magnetic ferrite pre-sintering material stirring device
By designing a permanent magnet ferrite pre-burning material mixing device with all-round mixing and intermittent feeding, the problems of mixing dead zones and material accumulation were solved, improving mixing uniformity and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-09
- Publication Date
- 2026-04-14
AI Technical Summary
Existing permanent magnet ferrite pre-sintered material mixing devices are prone to forming dead zones during the mixing process, resulting in uneven mixing of raw materials and easy accumulation of materials, which increases the difficulty of subsequent dispersion and affects the processing quality.
A permanent magnet ferrite pre-burning material mixing device was designed, which includes a mixing tank, a mixing mechanism, and a feeding mechanism. The mixing rod can be omnidirectionally mixed through a mounting frame, a motor, a mounting block, and a transmission mechanism. The intermittent feeding mechanism avoids material accumulation and ensures mixing uniformity and production efficiency.
It achieves all-round mixing of pre-burned materials, avoids dead zones in mixing, improves mixing uniformity and processing quality, reduces the difficulty of material accumulation, and improves production efficiency.
Smart Images
Figure CN121846953A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of permanent magnet processing technology, and more specifically to a stirring device for pre-burned permanent magnet ferrite. Background Technology
[0002] The sintering process of permanent magnet ferrite is a key step that determines the magnetic properties, mechanical properties and appearance quality of the final product. Therefore, before sintering permanent magnet ferrite, all kinds of raw materials (including pre-sintered materials, additives and binders) must be thoroughly and evenly stirred. This process is an important prerequisite for ensuring the smooth progress of subsequent production and the stability of product quality.
[0003] Existing stirring devices for permanent magnet ferrite pre-sintered materials typically use small stirring rods to facilitate rotation within the denser material. Furthermore, because the stirring rods are fixed in position, stirring is limited to a small, fixed radius, easily creating dead zones and resulting in uneven mixing, localized component segregation, and reduced subsequent processing quality. Additionally, the materials are often added in a single batch, leading to material accumulation and increased difficulty in subsequent dispersion. Therefore, to address these technical problems, a new stirring device for permanent magnet ferrite pre-sintered materials is proposed. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention proposes a permanent magnet ferrite pre-burning material stirring device, which facilitates all-round stirring of the stirring rod in the stirring chamber, avoids the formation of stirring dead zones, improves the quality of subsequent processing, and allows for intermittent feeding during the stirring process, effectively preventing material accumulation and reducing the difficulty of subsequent dispersion.
[0005] A stirring device for pre-sintered permanent magnet ferrite, comprising: A mixing tank, with a mixing chamber at the top and a lid that seals the opening of the mixing chamber; A stirring mechanism includes a mounting frame, a motor, a mounting block, a stirring rod, and a first transmission mechanism. One end of the mounting frame is rotatably mounted on the bottom of a bucket lid, coaxial with the stirring chamber via a rotating shaft. The motor is mounted on the top of the bucket lid, and one output end is coaxially connected to the rotating shaft. The mounting block is slidably mounted on the mounting frame along the radial direction of the stirring chamber, and the stirring rod is rotatably mounted on it, parallel to the axis of the stirring chamber. The first transmission mechanism connects the inner wall of the stirring chamber, the mounting frame, the mounting block, and the stirring rod, and converts the rotation of the mounting frame into the reciprocating movement of the mounting block and the rotation of the stirring rod. The feeding mechanism includes a feed pipe, a baffle, and a second transmission mechanism. The feed pipe is disposed on the barrel cover and its bottom end is connected to the stirring chamber. The baffle is slidably disposed on the feed pipe. The rotating shaft is connected to the baffle through the second transmission mechanism for intermittently driving the baffle to slide back and forth to open and close the feed pipe.
[0006] In one embodiment, the first transmission mechanism includes a reciprocating lead screw, a first transmission assembly, and a second transmission assembly. A guide groove is provided at the bottom of the mounting frame. The mounting block is radially slidably disposed within the guide groove along the stirring chamber. The reciprocating lead screw is radially arranged along the stirring chamber and rotatably disposed within the guide groove, and is helically connected to the mounting block. The first transmission assembly connects the inner wall of the stirring chamber and the reciprocating lead screw, converting the rotation of the mounting frame into the rotation of the reciprocating lead screw. The second transmission assembly connects the reciprocating lead screw and the stirring rod, converting the rotation of the reciprocating lead screw into the rotation of the stirring rod.
[0007] In one embodiment, the first transmission assembly includes a first bevel gear and a bevel gear ring; the first bevel gear is coaxially disposed at one end of the reciprocating screw, and the bevel gear ring is coaxially disposed on the inner wall of the stirring chamber, wherein the first bevel gear meshes with the bevel gear ring.
[0008] In one embodiment, the second transmission assembly includes a first transmission shaft, a first gear, a second bevel gear, and a third bevel gear; the first transmission shaft is rotatably disposed at the bottom end of the mounting bracket and parallel to the reciprocating lead screw; the first gear is coaxially disposed at one end of both the first transmission shaft and the reciprocating lead screw, and the two sets of first gears mesh; the second bevel gear is slidably sleeved on the first transmission shaft along the axial direction of the first transmission shaft and rotatably disposed on the mounting block; the third bevel gear is coaxially disposed at the top end of the stirring rod and meshes with the second bevel gear.
[0009] In one embodiment, the stirring mechanism further includes a moving mechanism, which includes a second drive shaft and a moving assembly. The second drive shaft is rotatably mounted on the mounting block and parallel to the axis of the stirring chamber. The first drive mechanism connects the inner wall of the stirring chamber, the mounting frame, the mounting block, and the second drive shaft, and is used to convert the rotation of the mounting frame into the reciprocating movement of the mounting block and the rotation of the second drive shaft. The stirring rod is slidably sleeved on the bottom end of the second drive shaft along the axial direction of the second drive shaft. The moving mechanism is mounted on the mounting block and connects the mounting frame and the stirring rod, and is used to convert the reciprocating movement of the mounting block into the reciprocating movement of the stirring rod.
[0010] In one embodiment, the moving component includes a second gear, a rack, a turntable, and a connecting frame; the second gear is rotatably mounted on both sides of the mounting block, and two sets of racks are arranged opposite each other at the bottom end of the connecting frame. The two sets of second gears mesh with the two sets of racks respectively, and the turntable is provided at the opposite end of each of the two sets of second gears. The turntable is eccentrically mounted on the opposite end of each of the two sets of turntables. The connecting frame is rotatably sleeved on the top of the stirring rod, and has grooves on both sides. The two sets of grooves are slidably mounted in the two sets of grooves respectively.
[0011] In one embodiment, the second transmission mechanism includes a guide plate and a spring; one end of the guide plate is disposed on the rotating shaft and is offset from the mounting bracket; the top surface of the other end of the guide plate is provided with a V-shaped guide groove with its tip facing the rotating shaft; one end of the baffle is provided with a guide rod; the rotation of the guide plate allows the guide rod to slide into the V-shaped guide groove from one end and slide out of the V-shaped guide groove from the other end; the spring connects the baffle and the feed pipe and is used to provide a pulling force to the baffle to close the feed pipe.
[0012] In one embodiment, multiple sets of feed pipes are spaced apart along the circumference of the barrel cover, and baffles are slidably disposed on each set of feed pipes. The rotating shaft is sequentially connected to the multiple sets of baffles through the second transmission mechanism, for intermittently driving the multiple sets of baffles to slide back and forth, so as to sequentially open and close the multiple sets of feed pipes.
[0013] In one embodiment, the feeding mechanism further includes a distributing component; the distributing component includes a storage tank, which is disposed at the top of multiple sets of feed pipes. A guide cone is coaxially disposed on the bottom surface of the inner cavity of the storage tank. Multiple sets of feed inlets are opened along the circumference of the inclined surface at the bottom end of the guide cone. The multiple sets of feed inlets correspond one-to-one with and are connected to the multiple sets of feed pipes.
[0014] In one embodiment, the material distribution assembly further includes a third drive shaft and a lever; the third drive shaft is coaxially disposed on the guide cone, and one end is coaxially connected to the other output shaft of the motor, and the other end of the third drive shaft is provided with the lever, the bottom surface of the lever is in contact with the inclined surface of the guide cone, and can pass through multiple sets of the feed inlets in sequence.
[0015] The above-mentioned permanent magnet ferrite pre-sintered material stirring device has at least the following beneficial effects: 1. When the motor drives the mounting frame to rotate, the mounting frame drives the stirring rod to revolve through the mounting block. At the same time, the rotation of the mounting frame drives the mounting block to reciprocate and the stirring rod to rotate through the first transmission mechanism, thereby realizing a compound stirring motion of the stirring rod rotating, revolving around the stirring chamber and moving radially along the stirring chamber. This facilitates the stirring rod to stir the pre-burned material in the stirring chamber in all directions, avoids the formation of stirring dead corners, and improves the quality of subsequent processing.
[0016] 2. When the mounting frame rotates, the mounting frame can achieve intermittent feeding by intermittently driving the baffle to slide back and forth through the second transmission mechanism to open and close the feed pipe. The newly fed material can quickly mix with the existing material in the cavity, effectively avoiding material accumulation and reducing the difficulty of subsequent dispersion.
[0017] 3. The mixing and intermittent feeding are carried out simultaneously, reducing the waiting time between processes and improving the overall production efficiency of pre-burned material mixing and processing. Attached Figure Description
[0018] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.
[0019] Figure 1 This is a three-dimensional structural schematic diagram of a permanent magnet ferrite pre-sintering material stirring device according to an embodiment of the present invention; Figure 2 for Figure 1 The image shown is an exploded view of a partially cut section of a permanent magnet ferrite pre-sintering material mixing device. Figure 3 for Figure 1 An exploded view of the stirring mechanism in a permanent magnet ferrite pre-sintering material stirring device is shown. Figure 4 for Figure 1 An exploded view of the feeding mechanism in a permanent magnet ferrite pre-sintering material mixing device is shown. Figure 5 for Figure 1 An exploded view of the first transmission mechanism in a permanent magnet ferrite pre-sintering material stirring device is shown. Figure 6 for Figure 1 An exploded view of the moving mechanism in a permanent magnet ferrite pre-sintering material mixing device; Figure 7 for Figure 1 The image shows a cross-sectional view of the material distribution component in a permanent magnet ferrite pre-sintering material mixing device.
[0020] Figure label: 10. Mixing tank; 101. Mixing chamber; 102. Tank lid; 20. Mounting bracket; 201. Motor; 202. Mounting block; 203. Stirring rod; 204. Rotating shaft; 205. Guide groove; 30. Feed pipe; 301. Baffle; 3011. Guide rod; 40. Reciprocating lead screw; 401. First bevel gear; 402. Bevel gear ring; 403. First drive shaft; 404. First gear; 405. Second bevel gear; 406. Third bevel gear; 50. Second drive shaft; 501. Second gear; 502. Rack; 503. Turntable; 504. Connecting frame; 505. Dial shaft; 506. Dial groove; 60. Guide plate; 601. Spring; 602. V-shaped guide groove; 70. Storage tank; 701. Guide cone; 702. Feed inlet; 703. Third drive shaft; 704. Lever. Detailed Implementation
[0021] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.
[0022] Please see Figures 1 to 4 A permanent magnet ferrite pre-sintering material mixing device according to one embodiment includes a mixing tank 10, a mixing mechanism, and a feeding mechanism. The mixing tank 10 has a mixing chamber 101 at its top and a tank cover 102 sealing the opening of the mixing chamber 101. The mixing mechanism includes a mounting frame 20, a motor 201, a mounting block 202, a mixing rod 203, and a first transmission mechanism. One end of the mounting frame 20 is rotatably mounted on the bottom end of the tank cover 102, coaxial with the mixing chamber 101 via a rotating shaft 204. The motor 201 is mounted on the top end of the tank cover 102, and one output end is coaxially connected to the rotating shaft 204. The mounting block 202 is slidably mounted on the mounting frame 20 along the radial direction of the mixing chamber 101, and a mixing rod 203 is rotatably mounted parallel to the axis of the mixing chamber 101. The first transmission mechanism connects the inner wall of the mixing chamber 101, the mounting frame 20, the mounting block 202, and the mixing rod 203, and is used to convert the rotation of the mounting frame 20 into the reciprocating movement of the mounting block 202 and the rotation of the mixing rod 203. The feeding mechanism includes a feed pipe 30, a baffle 301, and a second transmission mechanism. The feed pipe 30 is mounted on the barrel cover 102 and its bottom end is connected to the mixing chamber 101. The baffle 301 is slidably mounted on the feed pipe 30. The rotating shaft 204 is connected to the baffle 301 through the second transmission mechanism and is used to intermittently drive the baffle 301 to slide back and forth to open and close the feed pipe 30.
[0023] In the above embodiments, when the motor 201 drives the mounting frame 20 to rotate, the mounting frame 20 drives the stirring rod 203 to revolve through the mounting block 202. Simultaneously, the rotation of the mounting frame 20 drives the mounting block 202 to reciprocate and the stirring rod 203 to rotate via the first transmission mechanism. This achieves a composite stirring motion of the stirring rod 203 rotating, revolving around the stirring chamber 101, and moving radially along the stirring chamber 101. This facilitates all-around stirring of the pre-burned material within the stirring chamber 101 by the stirring rod 203, avoiding the formation of dead zones and improving subsequent processing quality. When the mounting frame 20 rotates, the second transmission mechanism intermittently drives the baffle 301 to slide back and forth, opening and closing the feed pipe 30 to achieve intermittent feeding. Newly added material can quickly mix with the existing material in the chamber, effectively preventing material accumulation and reducing the difficulty of subsequent dispersion. The simultaneous mixing and intermittent feeding reduces waiting time between processes and improves the overall production efficiency of the pre-burned material mixing and processing.
[0024] Please refer to the following: Figure 5 Specifically, the first transmission mechanism includes a reciprocating lead screw 40, a first transmission assembly, and a second transmission assembly. A guide groove 205 is provided at the bottom of the mounting frame 20. The mounting block 202 is radially slidably disposed within the guide groove 205 along the stirring chamber 101. The reciprocating lead screw 40 is radially arranged along the stirring chamber 101 and rotatably disposed within the guide groove 205, and is helically connected to the mounting block 202. The first transmission assembly connects the inner wall of the stirring chamber 101 and the reciprocating lead screw 40, converting the rotation of the mounting frame 20 into the rotation of the reciprocating lead screw 40. The second transmission assembly connects the reciprocating lead screw 40 and the stirring rod 203, converting the rotation of the reciprocating lead screw 40 into the rotation of the stirring rod 203.
[0025] The first transmission assembly includes a first bevel gear 401 and a bevel ring 402; the first bevel gear 401 is coaxially arranged at one end of the reciprocating screw 40, and the bevel ring 402 is coaxially arranged on the inner wall of the stirring chamber 101, and the first bevel gear 401 meshes with the bevel ring 402.
[0026] The second transmission assembly includes a first transmission shaft 403, a first gear 404, a second bevel gear 405, and a third bevel gear 406. The first transmission shaft 403 is rotatably mounted at the bottom of the mounting bracket 20 and is parallel to the reciprocating lead screw 40. The first gear 404 is coaxially mounted at one end of both the first transmission shaft 403 and the reciprocating lead screw 40, and the two sets of first gears 404 mesh. The second bevel gear 405 is slidably mounted on the first transmission shaft 403 along the axial direction of the first transmission shaft 403 and is rotatably mounted on the mounting block 202. The third bevel gear 406 is coaxially mounted at the top of the stirring rod 203 and meshes with the second bevel gear 405.
[0027] In the above embodiment, the rotation of the mounting frame 20 drives the first bevel gear 401 to rotate and mesh with the bevel gear ring 402, which in turn drives the reciprocating screw 40 to rotate. The rotation of the reciprocating screw 40 and the screw drive of the mounting block 202 drive the mounting block 202 to move back and forth. It is understood that the screw drive between the reciprocating screw 40 and the mounting block 202 is prior art and will not be described in detail. The reciprocating movement of the mounting block 202 drives the stirring rod 203 to move radially along the stirring chamber 101. At the same time as the reciprocating screw 40 rotates, the rotation of the reciprocating screw 40 drives the first transmission shaft 403 to rotate through two sets of first gears 404. The rotation of the first transmission shaft 403 drives the second bevel gear 405 to rotate. The rotation of the second bevel gear 405 and the meshing of the third bevel gear 406 drive the stirring rod 203 to rotate. Converting the rotation of the mounting frame 20 into the reciprocating movement of the mounting block 202 and the rotation of the stirring rod 203 is convenient and stable, without the need for additional power components and control components.
[0028] Please see Figure 3 and Figure 6 Furthermore, the stirring mechanism also includes a moving mechanism, which includes a second drive shaft 50 and a moving assembly. The second drive shaft 50 is rotatably mounted on the mounting block 202 and is parallel to the axis of the stirring chamber 101. The first transmission mechanism connects the inner wall of the stirring chamber 101, the mounting frame 20, the mounting block 202, and the second drive shaft 50, and is used to convert the rotation of the mounting frame 20 into the reciprocating movement of the mounting block 202 and the rotation of the second drive shaft 50. The stirring rod 203 is slidably sleeved on the bottom end of the second drive shaft 50 along the axial direction of the second drive shaft 50. The moving mechanism is mounted on the mounting block 202 and connects the mounting frame 20 and the stirring rod 203, and is used to convert the reciprocating movement of the mounting block 202 into the reciprocating movement of the stirring rod 203.
[0029] The moving component includes a second gear 501, a rack 502, a turntable 503, and a connecting frame 504. The second gear 501 is rotatably mounted on both sides of the mounting block 202. Two sets of racks 502 are arranged opposite each other at the bottom of the connecting frame 504. The two sets of second gears 501 mesh with the two sets of racks 502 respectively. A turntable 503 is provided at the opposite end of each set of second gears 501. A pivot shaft 505 is eccentrically mounted at the opposite end of each set of turntables 503. The connecting frame 504 is rotatably sleeved on the top of the stirring rod 203, and has pivot grooves 506 on both sides. The two sets of pivot shafts 505 are slidably mounted in the two sets of pivot grooves 506 respectively.
[0030] In the above embodiment, when the mounting block 202 moves, the mounting block 202 drives the second gear 501 to move. The movement of the second gear 501 meshes with the rack 502, causing the second gear 501 to drive the turntable 503 to rotate. The rotation of the turntable 503 drives the dial shaft 505 to rotate. The rotation of the dial shaft 505 and its sliding engagement with the dial groove 506 can drive the connecting frame 504 to drive the stirring rod 203 to reciprocate. This achieves a compound stirring motion in which the stirring rod 203 rotates on its own axis, revolves around the stirring chamber 101, moves radially along the stirring chamber 101, and reciprocates axially along the stirring chamber 101, further improving the stirring effect without the need for additional power equipment and control equipment.
[0031] Specifically, in the above embodiment, the third bevel gear 406 is coaxially disposed at the top of the second transmission shaft 50. The rotation of the second bevel gear 405 and its meshing with the third bevel gear 406 can drive the second transmission shaft 50 to rotate, and the rotation of the second transmission shaft 50 can drive the stirring rod 203 to rotate.
[0032] Please see Figure 2 and Figure 4 Specifically, the second transmission mechanism includes a guide plate 60 and a spring 601. One end of the guide plate 60 is mounted on the rotating shaft 204 and is offset from the mounting bracket 20. The top surface of the other end of the guide plate 60 is provided with a V-shaped guide groove 602 with its tip facing the rotating shaft 204. One end of the baffle 301 is provided with a guide rod 3011. When the guide plate 60 rotates, the guide rod 3011 can slide from one end of the V-shaped guide groove 602 into the V-shaped guide groove 602 and slide out from the other end of the V-shaped guide groove 602. The spring 601 connects the baffle 301 and the feed pipe 30 and is used to provide a pulling force to close the feed pipe 30 on the baffle 301.
[0033] In the above embodiment, the rotation of the mounting frame 20 drives the guide plate 60 to rotate. When the guide plate 60 rotates and the guide rod 3011 enters the V-shaped guide groove 602 and slides along one side, the guide rod 3011 can drive the baffle 301 to slide open the feed pipe 30. At this time, the spring 601 is stretched. As the guide plate 60 continues to rotate, when the guide rod 3011 slides along the other side of the V-shaped guide groove 602, the reaction force of the guide rod 3011 and the spring 601 can drive the baffle 301 to slide in the opposite direction to close the feed pipe 30. This facilitates the reciprocating sliding of the baffle 301 to open and close the feed pipe 30. When the guide rod 3011 slides out of the V-shaped guide groove 602, the force of the spring 601 can keep the baffle 301 closed at all times, ensuring the stability of intermittent feeding. The staggered arrangement of the guide plate 60 and the mounting frame 20 can prevent the mounting frame 20 from being located below the feed pipe 30 when the feed pipe 30 is opened, thereby preventing the material from falling onto the mounting frame 20.
[0034] Please see Figure 2 and Figure 4Furthermore, multiple sets of feed pipes 30 are spaced apart along the circumference of the barrel cover 102. Each set of feed pipes 30 is slidably equipped with a baffle 301. The rotating shaft 204 is sequentially connected to the multiple sets of baffles 301 through a second transmission mechanism, which is used to intermittently drive the multiple sets of baffles 301 to slide back and forth, thereby opening and closing the multiple sets of feed pipes 30 in sequence. The multiple sets of feed pipes 30 are spaced apart along the circumference of the barrel cover 102. With the second transmission mechanism driving the multiple sets of baffles 301 to slide back and forth in sequence, materials can be sequentially and intermittently fed from multiple positions in the mixing chamber 101, so that the materials can be mixed with the original materials in the chamber more quickly and evenly, thereby improving the mixing uniformity.
[0035] Please see Figure 1 , Figure 2 and Figure 7 In one embodiment, the feeding mechanism further includes a material distribution component; the material distribution component includes a storage tank 70, which is disposed at the top of multiple sets of feed pipes 30. A guide cone 701 is coaxially disposed on the bottom surface of the inner cavity of the storage tank 70. Multiple sets of feed inlets 702 are opened along the circumference of the inclined surface at the bottom end of the guide cone 701. The multiple sets of feed inlets 702 correspond one-to-one with and are connected to the multiple sets of feed pipes 30.
[0036] In the above embodiments, the storage tank 70 can realize centralized storage of materials, eliminating the need to frequently add materials to the feed pipe 30 and improving operational convenience; the inclined design of the guide cone 701 can prevent materials from accumulating in the storage tank 70, making it easier to divert the materials in the storage tank 70 to multiple sets of feed pipes 30, avoiding uneven feeding in multiple sets of feed pipes 30, ensuring that materials are evenly fed from multiple positions in the mixing chamber 101, further improving mixing uniformity, and avoiding component segregation caused by excessive local feeding.
[0037] Furthermore, the material distribution assembly also includes a third drive shaft 703 and a lever 704; the third drive shaft 703 is coaxially mounted on the guide cone 701, and one end is coaxially connected to the other output shaft of the motor 201. The other end of the third drive shaft 703 is provided with a lever 704, the bottom surface of which is in contact with the inclined surface of the guide cone 701, and can pass through multiple sets of feed inlets 702 in sequence.
[0038] In the above embodiment, the motor 201 drives the mounting frame 20 to rotate, stirring the material while simultaneously driving the third drive shaft 703 to rotate. The rotation of the third drive shaft 703 drives the lever 704 to rotate, which in turn moves the material in the storage tank 70, thereby preventing material from accumulating between two adjacent feed inlets 702 and effectively preventing material from clumping and clogging the feed inlets 702. Furthermore, no additional power is required, reducing the energy consumption of the device. It is understood that the motor 201 is a dual-shaft motor.
[0039] The specific implementation method of the above-mentioned permanent magnet ferrite pre-sintering material stirring device is as follows: First, the material is concentrated and put into the storage tank 70. At this time, some of the material is stored in multiple sets of feed pipes 30 under the guidance of the guide cone 701, so as to avoid uneven feeding in multiple sets of feed pipes 30 and ensure that the material is evenly fed from multiple positions in the mixing chamber 101, further improving the mixing uniformity and avoiding component segregation caused by excessive local feeding.
[0040] During stirring, the start motor 201 drives the mounting frame 20, guide plate 60, and third drive shaft 703 to rotate. The rotation of the mounting frame 20 causes the stirring rod 203 to revolve, and also drives the first bevel gear 401 to rotate, meshing with the bevel gear ring 402 to drive the reciprocating screw 40 to rotate. The rotation of the reciprocating screw 40, through helical transmission with the mounting block 202, drives the mounting block 202 to reciprocate. The reciprocating movement of the mounting block 202 drives the stirring rod 203 to move radially along the stirring chamber 101. Simultaneously, the rotation of the reciprocating screw 40 drives the first drive shaft 403 to rotate through two sets of first gears 404. The rotation of the first drive shaft 403 drives the second bevel gear 405 to rotate. The rotation of the second bevel gear 405, through meshing with the third bevel gear 406, drives the second drive shaft 403 to rotate. The rotation of the drive shaft 50 drives the stirring rod 203 to rotate. In addition, the reciprocating movement of the mounting block 202 drives the second gear 501 to move. The movement of the second gear 501 meshes with the rack 502, causing the turntable 503 to rotate. The rotation of the turntable 503 drives the dial shaft 505 to rotate. The rotation of the dial shaft 505 and its sliding engagement with the dial groove 506 drive the connecting frame 504 to drive the stirring rod 203 to move reciprocally. This achieves a compound stirring motion in which the stirring rod 203 rotates, revolves around the stirring chamber 101, moves radially along the stirring chamber 101, and moves axially along the stirring chamber 101. This facilitates the stirring rod 203 to stir the pre-burned material in the stirring chamber 101 in all directions, avoids the formation of stirring dead zones, and improves the quality of subsequent processing.
[0041] While stirring, the guide plate 60 rotates and engages with multiple sets of baffles 301 in sequence. When the guide rod 3011 on the baffle 301 enters the V-shaped guide groove 602 and slides along one side, the guide rod 3011 drives the baffle 301 to slide open the feed pipe 30. At this time, the spring 601 is stretched. As the guide plate 60 continues to rotate, when the guide rod 3011 slides along the other side of the V-shaped guide groove 602, the reaction force of the guide rod 3011 and the spring 601 drives the baffle 301 to slide in the opposite direction and close the feed pipe 30. This allows materials to be added sequentially and intermittently from multiple positions in the stirring chamber 101, effectively avoiding material accumulation, reducing the difficulty of subsequent dispersion, and allowing the materials to mix with the existing materials in the chamber more quickly and evenly, improving the mixing uniformity. Stirring and intermittent feeding are carried out simultaneously, reducing the waiting time between processes and improving the overall production efficiency of pre-burned material stirring and processing.
[0042] In addition, the rotation of the third drive shaft 703 drives the lever 704 to rotate. The rotation of the lever 704 can move the material in the storage tank 70, thereby preventing the material from accumulating between two adjacent feed ports 702 and effectively preventing the material from clumping and blocking the feed port 702.
[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.
Claims
1. A stirring device for pre-sintered permanent magnet ferrite, characterized in that, include: A mixing tank, with a mixing chamber at the top and a lid that seals the opening of the mixing chamber; A stirring mechanism includes a mounting frame, a motor, a mounting block, a stirring rod, and a first transmission mechanism. One end of the mounting frame is rotatably mounted on the bottom of a bucket lid, coaxial with the stirring chamber via a rotating shaft. The motor is mounted on the top of the bucket lid, and one output end is coaxially connected to the rotating shaft. The mounting block is slidably mounted on the mounting frame along the radial direction of the stirring chamber, and the stirring rod is rotatably mounted on it, parallel to the axis of the stirring chamber. The first transmission mechanism connects the inner wall of the stirring chamber, the mounting frame, the mounting block, and the stirring rod, and converts the rotation of the mounting frame into the reciprocating movement of the mounting block and the rotation of the stirring rod. The feeding mechanism includes a feed pipe, a baffle, and a second transmission mechanism. The feed pipe is disposed on the barrel cover and its bottom end is connected to the stirring chamber. The baffle is slidably disposed on the feed pipe. The rotating shaft is connected to the baffle through the second transmission mechanism for intermittently driving the baffle to slide back and forth to open and close the feed pipe.
2. The permanent magnet ferrite pre-sintering material stirring device according to claim 1, characterized in that, The first transmission mechanism includes a reciprocating lead screw, a first transmission assembly, and a second transmission assembly. A guide groove is provided at the bottom of the mounting frame. The mounting block is radially slidably disposed within the guide groove along the stirring chamber. The reciprocating lead screw is radially arranged along the stirring chamber and rotatably disposed within the guide groove, and is helically connected to the mounting block. The first transmission assembly connects the inner wall of the stirring chamber and the reciprocating lead screw, converting the rotation of the mounting frame into the rotation of the reciprocating lead screw. The second transmission assembly connects the reciprocating lead screw and the stirring rod, converting the rotation of the reciprocating lead screw into the rotation of the stirring rod.
3. The permanent magnet ferrite pre-sintering material stirring device according to claim 2, characterized in that, The first transmission assembly includes a first bevel gear and a bevel gear ring; the first bevel gear is coaxially disposed at one end of the reciprocating screw, and the bevel gear ring is coaxially disposed on the inner wall of the stirring chamber, wherein the first bevel gear meshes with the bevel gear ring.
4. The permanent magnet ferrite pre-sintering material stirring device according to claim 2, characterized in that, The second transmission assembly includes a first transmission shaft, a first gear, a second bevel gear, and a third bevel gear. The first transmission shaft is rotatably disposed at the bottom end of the mounting bracket and is parallel to the reciprocating lead screw. The first gear is coaxially disposed at one end of both the first transmission shaft and the reciprocating lead screw, and the two sets of first gears mesh. The second bevel gear is slidably sleeved on the first transmission shaft along the axial direction of the first transmission shaft and is rotatably disposed on the mounting block. The third bevel gear is coaxially disposed at the top end of the stirring rod and meshes with the second bevel gear.
5. The permanent magnet ferrite pre-sintering material stirring device according to claim 1, characterized in that, The stirring mechanism further includes a moving mechanism, which includes a second drive shaft and a moving assembly. The second drive shaft is rotatably mounted on the mounting block and parallel to the axis of the stirring chamber. The first drive mechanism connects the inner wall of the stirring chamber, the mounting frame, the mounting block, and the second drive shaft, and is used to convert the rotation of the mounting frame into the reciprocating movement of the mounting block and the rotation of the second drive shaft. The stirring rod is slidably sleeved on the bottom end of the second drive shaft along the axial direction of the second drive shaft. The moving mechanism is mounted on the mounting block and connects the mounting frame and the stirring rod, and is used to convert the reciprocating movement of the mounting block into the reciprocating movement of the stirring rod.
6. The permanent magnet ferrite pre-sintering material stirring device according to claim 5, characterized in that, The moving component includes a second gear, a rack, a turntable, and a connecting frame. The second gear is rotatably mounted on both sides of the mounting block. Two sets of racks are arranged opposite each other at the bottom of the connecting frame. The two sets of second gears mesh with the two sets of racks respectively. The turntable is mounted on the opposite end of each set of second gears. A dial is eccentrically mounted on the opposite end of each set of turntables. The connecting frame is rotatably sleeved on the top of the stirring rod and has dial grooves on both sides. The two sets of dial shafts are slidably mounted in the two sets of dial grooves respectively.
7. The permanent magnet ferrite pre-sintering material stirring device according to claim 1, characterized in that, The second transmission mechanism includes a guide plate and a spring; one end of the guide plate is disposed on the rotating shaft and is offset from the mounting bracket; the top surface of the other end of the guide plate is provided with a V-shaped guide groove with the tip facing the rotating shaft; one end of the baffle is provided with a guide rod; the rotation of the guide plate allows the guide rod to slide into the V-shaped guide groove from one end and slide out of the V-shaped guide groove from the other end; the spring connects the baffle and the feed pipe and is used to provide a pulling force to the baffle to close the feed pipe.
8. The permanent magnet ferrite pre-sintering material stirring device according to claim 1, characterized in that, The feed pipes are arranged in multiple sets at intervals along the circumference of the barrel cover. Each set of feed pipes is slidably equipped with a baffle. The rotating shaft is sequentially connected to the multiple sets of baffles through the second transmission mechanism, which is used to intermittently drive the multiple sets of baffles to slide back and forth, so as to sequentially open and close the multiple sets of feed pipes.
9. A stirring device for pre-sintered permanent magnet ferrite as described in claim 8, characterized in that, The feeding mechanism also includes a material distribution component; the material distribution component includes a storage tank, which is disposed at the top of multiple sets of feeding pipes. A guide cone is coaxially disposed on the bottom surface of the inner cavity of the storage tank. Multiple sets of feeding ports are opened along the circumference of the inclined surface at the bottom end of the guide cone. The multiple sets of feeding ports correspond one-to-one with and are connected to the multiple sets of feeding pipes.
10. A stirring device for pre-sintered permanent magnet ferrite as described in claim 9, characterized in that, The material distribution assembly also includes a third drive shaft and a lever; the third drive shaft is coaxially mounted on the guide cone, and one end is coaxially connected to the other output shaft of the motor, and the other end of the third drive shaft is provided with the lever, the bottom surface of the lever is in contact with the inclined surface of the guide cone, and can pass through multiple sets of the feed inlets in sequence.