Feeding apparatus and method for ferrite injection molded magnetic material

Abstract

The application discloses a feeding device and method for ferrite injection molding magnetic material, and relates to the technical field of feeding devices, which comprises a mounting frame, the top of the mounting frame is provided with a flow increasing element on the inner side of a hopper, the top of a triangular connecting plate is provided with a plurality of knock material units, and the inner side of a discharging pipe is provided with a flow circulation breaker connected with the triangular connecting plate. The multiple knock material units are arranged, the triangular connecting plate is moved up and down through a rectangular guide rod, the triangular connecting plate drives a straight gear to rotate, the bottom of a knocking rod impacts the top of the hopper, the hopper is vibrated, powder is prevented from adhering to the inner wall of the hopper, the flowability of the powder in the hopper is improved, the cleanliness of the inner wall of the hopper is improved, the knocking rod knocks the top of the hopper at different positions through the rotation of the hopper, and the vibration amplitudes of the powder at different positions in the hopper are equal.

Description

Technical Field

[0001] This invention relates to the field of feeding equipment technology, specifically to a feeding device and method for ferrite injection molding magnetic materials. Background Technology

[0002] Injection-molded ferrite is a special type of ferrite material. Ferrites are compounds composed of iron and oxygen elements. Through injection molding, ferrite powder can be mixed with thermoplastic plastic, and then the mixed raw material is injected into a mold at high temperature to form parts of the required shape. This preparation method allows ferrite materials to be produced in complex shapes and structures, thereby expanding its application fields.

[0003] When mixing ferrite powder with thermoplastics and injection molding, the ferrite powder needs to be conveyed and fed through a feeding device. When the ferrite powder enters the injection molding machine through the feeding hopper, some of the ferrite powder will clump together. This will cause the volume of the ferrite powder to increase, which will not only affect the continuity of feeding, but also cause blockage of the discharge pipe due to the clumped powder, thus affecting the molding effect of subsequent parts. Summary of the Invention

[0004] The purpose of this invention is to provide a feeding device and method for ferrite injection molding magnetic materials in order to solve the problem that agglomerated ferrite powder can easily cause blockage of the feeding pipe.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a feeding device for ferrite injection molded magnetic materials, comprising a mounting frame, a feeding pipe rotatably connected to the inner side of the mounting frame via bearings, a hopper at the top of the feeding pipe, a motor arranged parallel to the feeding pipe on the inner side of the mounting frame, a flow booster located inside the hopper on the top of the mounting frame, a triangular connecting plate located above the hopper on the top of the mounting frame, a multi-position material knocking unit installed on the top of the triangular connecting plate, and a flow crusher connected to the triangular connecting plate on the inner side of the feeding pipe.

[0006] As a further embodiment of the present invention: the flow booster includes a second transmission spur gear installed at the output end of the motor; a first transmission spur gear meshing with the second transmission spur gear is installed on the outer wall of the discharge pipe; a conical gear ring located on the outer side of the top of the hopper is provided on the top of the mounting frame; a rotating shaft extending through to the outer side of the hopper is provided on the inner side of the hopper; a driven bevel gear meshing with the conical gear ring is installed at the end of the rotating shaft away from the center of the hopper; a fourth transmission bevel gear is installed at the end of the rotating shaft near the center of the hopper; support plates located on both sides of the rotating shaft are installed on the inner wall of the hopper; a transmission shaft is rotatably connected to the end of the support plate near the center of the hopper via a bearing; a third transmission bevel gear meshing with the fourth transmission bevel gear is provided on the transmission shaft; first transmission bevel gears are installed at both ends of the transmission shaft; a stirring rod is rotatably connected to the bottom of the support plate via a bearing; a second transmission bevel gear meshing with the first transmission bevel gear is provided at the top of the stirring rod.

[0007] As a further embodiment of the present invention: the number of the rotating shafts is set to three, and the three rotating shafts are distributed at equal distances along the center of the hopper, and the center of the conical gear ring is coaxial with the center of the hopper.

[0008] As a further embodiment of the present invention: the flow-through crusher includes a sleeve installed on the inner wall of the feed pipe, a rectangular insert rod inserted into the top of the sleeve, a collection hopper installed at the top of the rectangular insert rod, a filter sleeve installed at the bottom of the collection hopper outside the rectangular insert rod, a movable crushing rod provided on the inner wall of the collection hopper, a connecting shaft coaxial with the center of the collection hopper provided on the inner side of the collection hopper, positioning crushing rods arranged alternately with the movable crushing rods provided on the outer side of the connecting shaft, a rectangular guide rod fixed at the top of the connecting shaft and slidably connected to the triangular connecting plate, a positioning frame installed at the top of the collection hopper outside the rectangular guide rod, a reciprocating screw installed at the end of the rotating bevel gear away from the hopper, a movable sleeve block sleeved on the reciprocating screw, a translation rod extending into the hopper and located below the rotating shaft at the bottom of the movable sleeve block, and a diagonal tie rod connected to the positioning frame rotatably connected to the end of the translation rod near the center of the hopper via a rotating shaft.

[0009] As a further embodiment of the present invention: the outer diameter of both the collecting hopper and the filter sleeve is equal to the inner diameter of the feeding pipe.

[0010] As a further aspect of the present invention: the number of movable crushing rods and positioning crushing rods is set to multiple, and the multiple movable crushing rods and positioning crushing rods are arranged and staggered along the vertical central axis of the connecting shaft and the collecting hopper, respectively.

[0011] As a further embodiment of the present invention: the multi-position knocking unit includes a connecting rack mounted on the outside of a rectangular guide rod; a guide frame is fixed to the top of the triangular connecting plate; a shifting spur gear meshing with the connecting rack is rotatably connected to the inner side of the guide frame via a rotating shaft; a disc is provided on the rotating shaft connecting the shifting spur gear and the guide frame; a shifting pin is fixed to one side of the disc; a movable insert plate is horizontally inserted into the guide frame; a direct connecting guide rail sleeved on the outside of the shifting pin is fixed to one end of the movable insert plate near the connecting rack; the triangular connecting plate... A striking rod is inserted into the top of the connecting plate, located on the side of the guide frame away from the connecting rack. A limiting plate is installed at the top of the striking rod, located above the triangular connecting plate. A telescopic spring is provided at the bottom of the limiting plate, located outside the striking rod and connected to the triangular connecting plate. Guide rollers are provided on both sides of the limiting plate. A swing plate is rotatably connected to the end of the movable insert plate away from the direct connecting guide rail via a rotating shaft. A limiting pin is provided on one side of the swing plate, located above the movable insert plate. A torsion spring connected to the movable insert plate is engaged on the outside of the rotating shaft connecting the swing plate and the movable insert plate.

[0012] As a further embodiment of the present invention: the width of the inner wall of the direct-connecting guide rail is equal to the diameter of the actuating pin, the length of the direct-connecting guide rail is equal to the diameter of the disk, and the centers of the disk and the actuating pin are staggered.

[0013] As a further embodiment of the present invention: the bottom of the striking rod is rotatably connected to a ball bearing, and the top of the triangular connecting plate is provided with a through hole that matches the top cross section of the connecting rack.

[0014] This invention also discloses a feeding method for ferrite injection molded magnetic materials, employing the aforementioned feeding equipment for ferrite injection molded magnetic materials, comprising the following steps:

[0015] S1: When using this equipment, first install the mounting bracket on the injection molding machine so that the discharge pipe is inserted into the feed pipe on the injection molding machine;

[0016] S2: Then pour the ferrite powder into the hopper, start the motor, and through the cooperation of the motor and the flow booster, the feed pipe drives the hopper to rotate relative to the mounting frame. During this process, the flow booster agitates the ferrite powder inside the hopper, which increases the fluidity of the ferrite powder inside the hopper.

[0017] S3: Simultaneously, the flow booster and the flow crusher work together to filter and crush the agglomerated powder in the hopper. As the flow crusher operates, multiple hammering units strike the top of the hopper.

[0018] S4: The crushed powder falls into the injection molding machine through the feed pipe.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By setting up a flow-through crusher, when ferrite powder enters the hopper, the agglomerated ferrite powder falls into the hopper under its own gravity, while the unagglomerated powder passes through the hopper and is discharged through the discharge pipe. The rotation of the reciprocating screw causes the movable sleeve to move back and forth, and the hopper and filter sleeve rise. During this process, the unagglomerated ferrite powder inside the hopper falls into the discharge pipe through the hopper. At the same time, the movable crushing rod rotates relative to the positioning crushing rod to crush the agglomerated ferrite powder inside the hopper. This crushing process can prevent the agglomerated ferrite powder from clogging the discharge pipe and also prevent the agglomerated ferrite powder from affecting the discharge of the unagglomerated powder, thereby increasing the continuity of feeding.

[0021] 2. By setting up a flow booster, when the motor is running, the second transmission spur gear drives the feed pipe to rotate through the first transmission spur gear. At this time, the feed pipe will drive the hopper to rotate relative to the mounting frame. When the hopper rotates, it drives the rotating shaft to revolve around the center of the feed pipe. At the same time, the rotating bevel gear rotates along the bevel gear ring. In this way, the rotating shaft can rotate relative to the hopper while rotating with it. This allows the rotating shaft to drive the transmission shaft to rotate through the fourth and third transmission bevel gears. When the transmission shaft rotates, the first transmission bevel gear drives the stirring rod to rotate through the second transmission bevel gear. This causes the stirring rod to agitate the ferrite powder accumulated in the hopper, thereby increasing the fluidity of the ferrite powder inside the hopper and ensuring the continuity of feeding.

[0022] 3. By setting up multiple impact units, the up-and-down movement of the rectangular guide rod causes the connecting rack to rotate the shifting spur gear, resulting in the bottom of the impact rod striking the top of the hopper. This causes the hopper to vibrate, preventing powder from adhering to the inner wall of the hopper. At the same time, the powder, under the action of vibration, moves along the bottom slope of the hopper towards the top of the feed pipe. This not only improves the flowability of the powder in the hopper but also improves the cleanliness of the inner wall of the hopper. Furthermore, the rotation of the hopper causes the impact rod to strike different positions on the top of the hopper, ensuring that the vibration amplitude of the powder in different positions inside the hopper is equal, and preventing localized damage to the hopper caused by prolonged striking of one spot. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the hopper of the present invention;

[0025] Figure 3This is a schematic diagram showing the connection between the reciprocating lead screw and the collecting hopper of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the hopper of the present invention;

[0027] Figure 5 This is a schematic diagram showing the connection between the conical gear ring and the stirring rod of the present invention;

[0028] Figure 6 This is a schematic diagram of the top structure of the triangular connecting plate of the present invention;

[0029] Figure 7 This is a schematic diagram showing the connection between the connecting rack and the movable insert plate of the present invention;

[0030] Figure 8 This is a schematic diagram showing the connection between the movable insert plate and the striking rod of the present invention.

[0031] In the diagram: 1. Mounting frame; 2. Feed pipe; 3. Hopper; 401. First transmission spur gear; 402. Second transmission spur gear; 403. Motor; 404. Reciprocating lead screw; 405. Bevel gear ring; 406. Triangular connecting plate; 407. Rectangular guide rod; 408. Rotating shaft; 409. Support frame plate; 410. Stirring rod; 411. Collection hopper; 412. Filter sleeve; 413. Sleeve; 414. Rectangular insert rod; 415. Translation rod; 416. Driven bevel gear; 417. Movable sleeve; 418. Diagonal tie rod; 419. Transmission shaft; 420. Positioning. Frame; 421. Movable crushing rod; 422. Connecting shaft; 423. Positioning crushing rod; 424. First transmission bevel gear; 425. Second transmission bevel gear; 426. Third transmission bevel gear; 427. Fourth transmission bevel gear; 428. Connecting rack; 429. Positioning spur gear; 430. Guide frame; 431. Movable insert plate; 432. Limiting plate; 433. Telescopic spring; 434. Disc; 435. Direct connecting guide rail; 436. Torsion spring; 437. Actuating pin; 438. Striking rod; 439. Limiting pin; 440. Guide roller; 441. Swaying plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0034] Please see Figures 1 to 8 In this embodiment of the invention, a feeding device for ferrite injection molded magnetic materials includes a mounting frame 1. A feeding pipe 2 is rotatably connected to the inner side of the mounting frame 1 via a bearing. A hopper 3 is provided at the top of the feeding pipe 2. A motor 403 is provided on the inner side of the mounting frame 1, parallel to the feeding pipe 2. A flow booster is provided on the top of the mounting frame 1, located inside the hopper 3. A triangular connecting plate 406 is provided on the top of the mounting frame 1, located above the hopper 3. Multiple material-knocking units are installed on the top of the triangular connecting plate 406. A flow-through crusher connected to the triangular connecting plate 406 is provided on the inner side of the feeding pipe 2.

[0035] In this embodiment: When using the equipment, the mounting frame 1 is first installed on the injection molding machine, so that the discharge pipe 2 is inserted into the feed pipe on the injection molding machine. Then, the ferrite powder is poured into the hopper 3, and the motor 403 is started. Through the cooperation of the motor 403 and the flow booster, the discharge pipe 2 drives the hopper 3 to rotate relative to the mounting frame 1. During this process, the flow booster agitates the ferrite powder inside the hopper 3, increasing the fluidity of the ferrite powder inside the hopper 3. At the same time, through the cooperation of the flow booster and the flow crusher, the clumps of powder in the hopper 3 are filtered and crushed. As the flow crusher operates, the multiple hammering units knock on the top of the hopper 3. The crushed powder falls into the injection molding machine through the discharge pipe 2.

[0036] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 , Figure 5The flow booster includes a second transmission spur gear 402 mounted on the output end of the motor 403, a first transmission spur gear 401 meshing with the second transmission spur gear 402 mounted on the outer wall of the discharge pipe 2, a conical gear ring 405 located on the outer side of the top of the mounting bracket 1, a rotating shaft 408 extending through the outer side of the hopper 3 on the inner side of the hopper 3, a driven bevel gear 416 meshing with the conical gear ring 405 mounted on the end of the rotating shaft 408 away from the center of the hopper 3, and a fourth transmission bevel gear mounted on the end of the rotating shaft 408 near the center of the hopper 3. 427. The inner wall of the hopper 3 is equipped with support plates 409 located on both sides of the rotating shaft 408. The end of the support plate 409 near the center of the hopper 3 is rotatably connected to the drive shaft 419 via a bearing. The drive shaft 419 is provided with a third drive bevel gear 426 that meshes with the fourth drive bevel gear 427. The two ends of the drive shaft 419 are equipped with first drive bevel gears 424. The bottom of the support plate 409 is rotatably connected to the stirring rod 410 via a bearing. The top of the stirring rod 410 is provided with a second drive bevel gear 425 that meshes with the first drive bevel gear 424.

[0037] In this embodiment: When the motor 403 is operating, the second transmission spur gear 402 drives the feed pipe 2 to rotate through the first transmission spur gear 401. At this time, the feed pipe 2 will drive the hopper 3 to rotate relative to the mounting frame 1. When the hopper 3 rotates, it drives the rotating shaft 408 to revolve around the center of the feed pipe 2. At the same time, the rotating bevel gear 416 rotates along the bevel gear ring 405. Thus, the rotating shaft 408 rotates relative to the hopper 3 while rotating with it. This allows the rotating shaft 408 to drive the transmission shaft 419 to rotate through the fourth transmission bevel gear 427 and the third transmission bevel gear 426. When the transmission shaft 419 rotates, the first transmission bevel gear 424 drives the stirring rod 410 to rotate through the second transmission bevel gear 425. This causes the stirring rod 410 to agitate the ferrite powder accumulated in the hopper 3, thereby increasing the fluidity of the ferrite powder inside the hopper 3 and ensuring the continuity of feeding.

[0038] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 There are three rotating shafts 408, and the three rotating shafts 408 are distributed at equal distances along the center of the hopper 3. The center of the bevel gear ring 405 is coaxial with the center of the hopper 3.

[0039] In this embodiment: by setting this structure, when the hopper 3 drives the rotating shaft 408 to rotate, the rotating shaft 408 rotates relative to the hopper 3 through the bevel gear ring 405 and the rotating bevel gear 416, so as to make the stirring rod 410 stir the ferrite powder accumulated in the hopper 3, thereby increasing the fluidity of the ferrite powder in the hopper 3.

[0040] Please refer to this carefully. Figure 1 , Figure 2 , Figure 3 , Figure 4 The flow-through crusher includes a sleeve 413 installed on the inner wall of the feed pipe 2. A rectangular insert rod 414 is inserted into the top of the sleeve 413. A collection hopper 411 is installed at the top of the rectangular insert rod 414. A filter sleeve 412 located outside the rectangular insert rod 414 is installed at the bottom of the collection hopper 411. A movable crushing rod 421 is provided on the inner wall of the collection hopper 411. A connecting shaft 422 coaxial with the center of the collection hopper 411 is provided on the inner side of the collection hopper 411. Positioning crushing rods 423 arranged alternately with the movable crushing rod 421 are provided on the outer side of the connecting shaft 422. A rectangular guide rod 407 is fixed at the top and slides vertically with the triangular connecting plate 406. A positioning frame 420 located outside the rectangular guide rod 407 is installed on the top of the hopper 411. A reciprocating screw 404 is installed at the end of the bevel gear 416 away from the hopper 3. A movable sleeve block 417 is sleeved on the reciprocating screw 404. A translation rod 415 extending into the hopper 3 and located below the rotating shaft 408 is provided at the bottom of the movable sleeve block 417. The end of the translation rod 415 near the center of the hopper 3 is rotatably connected to the inclined tie rod 418 connected to the positioning frame 420 through the rotating shaft.

[0041] In this embodiment: when ferrite powder enters the hopper 3, it is filtered by the collecting hopper 411, causing the agglomerated ferrite powder to fall into the collecting hopper 411 under its own gravity, while the unagglomerated powder passes through the collecting hopper 411 and is discharged through the discharge pipe 2. When the rotating shaft 408 rotates relative to the hopper 3, the reciprocating screw 404 will rotate with the rotating shaft 408. At this time, the movable sleeve 417 moves horizontally along the reciprocating screw 404. When the translation rod 415 moves away from the hopper 3, it pulls the top of the inclined tie rod 418. At this time, the inclined tie rod 418, through the positioning frame 420, causes the collecting hopper 411 and the filter sleeve 412 to rise. During this process, unagglomerated ferrite powder inside the collecting hopper 411 falls into the discharge pipe 2, while agglomerated ferrite powder remains in the collecting hopper 411. Simultaneously, the top of the discharge pipe 2 is blocked by the filter sleeve 412, preventing the unagglomerated ferrite powder inside the hopper 3 from falling into the discharge pipe 2. The agglomerated ferrite powder passes through the filter sleeve 412 and enters its interior, finally being discharged from the bottom of the discharge pipe 2. As the collecting hopper 411 rises, it is limited by the rectangular guide rod 407. At this time, the collecting hopper 411 rotates relative to the rectangular guide rod 407 as the hopper 3 rotates. This allows the movable crushing rod 421 to rotate along the center of the connecting shaft 422. Thus, the rotation of the movable crushing rod 421 relative to the positioning crushing rod 423 cleans the agglomerated ferrite powder inside the collecting hopper 411. The lumpy ferrite powder is crushed. The crushed ferrite powder passes through the collecting hopper 411 and the filter sleeve 412 and is finally discharged through the discharge pipe 2. When the movable sleeve 417 moves towards the hopper 3, the collecting hopper 411 returns to its original position, and the powder re-enters the collecting hopper 411. This process is repeated to crush the lumpy powder, thereby preventing the lumpy ferrite powder from clogging the discharge pipe 2 and also preventing the lumpy ferrite powder from affecting the discharge of the unlumped powder, thus increasing the continuity of feeding.

[0042] Please refer to this carefully. Figure 2 , Figure 3 The outer diameter of the collecting hopper 411 and the filter sleeve 412 are equal to the inner diameter of the feeding pipe 2.

[0043] In this embodiment: by setting this structure, the filter sleeve 412 filters the ferrite powder inside the hopper 3 when the collecting hopper 411 moves upward, preventing the agglomerated powder from entering the discharge pipe 2 during the upward movement of the collecting hopper 411.

[0044] Please refer to this carefully. Figure 2 , Figure 3 , Figure 4The number of movable crushing rods 421 and positioning crushing rods 423 is set to multiple, and the multiple movable crushing rods 421 and positioning crushing rods 423 are arranged and staggered along the vertical central axis of the connecting shaft 422 and the collecting hopper 411, respectively.

[0045] In this embodiment: by setting this structure, when the collecting hopper 411 rotates relative to the rectangular guide rod 407, the movable crushing rod 421 and the positioning crushing rod 423 crush the powder material that falls into the collecting hopper 411 and clumps inside.

[0046] Please refer to this carefully. Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8 The multi-position material striking unit includes a connecting rack 428 mounted on the outside of a rectangular guide rod 407. A guide frame 430 is fixed to the top of a triangular connecting plate 406. A shifting spur gear 429, meshing with the connecting rack 428, is rotatably connected to the inner side of the guide frame 430 via a rotating shaft. A disc 434 is mounted on the rotating shaft connecting the shifting spur gear 429 and the guide frame 430. A shifting pin 437 is fixed to one side of the disc 434. A movable insert plate 431 is horizontally inserted into the guide frame 430. A straight connecting guide rail 435, sleeved on the outside of the shifting pin 437, is fixed to the end of the movable insert plate 431 near the connecting rack 428. A guide rail 435 located on the top of the triangular connecting plate 406 is inserted into the guide frame 430. A striking rod 438 is located on the side of the frame 430 away from the connecting rack 428. A limiting plate 432 is installed at the top of the striking rod 438 and is located above the triangular connecting plate 406. A telescopic spring 433 is located at the bottom of the limiting plate 432 and is located outside the striking rod 438 and connected to the triangular connecting plate 406. Guide rollers 440 are provided on both sides of the limiting plate 432. A swing plate 441 is rotatably connected to the end of the movable insert plate 431 away from the direct connecting guide rail 435 via a rotating shaft. A limiting pin 439 is provided on one side of the swing plate 441 and is located above the movable insert plate 431. A torsion spring 436 connected to the movable insert plate 431 is engaged on the outside of the rotating shaft connecting the swing plate 441 and the movable insert plate 431.

[0047] In this embodiment: when the rectangular guide rod 407 moves upward relative to the triangular connecting plate 406, the connecting rack 428 actuates the shifting spur gear 429 to rotate. At this time, the disc 434 rotates with the shifting spur gear 429. During this process, the shifting pin 437 drives the movable insert plate 431, which is limited by the guide frame 430, to reciprocate horizontally through the direct connecting guide rail 435. When the swing plate 441 moves towards the limiting plate 432, the swing plate 441 squeezes the guide roller 440. At this time, the striking rod 438 moves upward. When the swing plate 441 separates from the guide roller 440, the limiting plate 432 returns to its original position under the elastic restoring force of the telescopic spring 433. This causes the bottom of the striking rod 438 to impact the top of the hopper 3, thereby causing the hopper 3 to vibrate. This prevents the powder from adhering to the inner wall of the hopper 3, and also causes the powder to move along the material under the action of vibration. The bottom slope of hopper 3 faces the top of the feed pipe 2, which not only improves the flowability of powder in hopper 3, but also improves the cleanliness of the inner wall of hopper 3. When the movable insert plate 431 moves toward the shift spur gear 429, the swing plate 441 is limited by the guide roller 440 and swings relative to the movable insert plate 431. This allows the swing plate 441 to move to the side of the limit plate 432 close to the guide frame 430. At the same time, the torsion spring 436 makes the swing plate 441 return to its original position. As the movable insert plate 431 moves horizontally back and forth, the striking rod 438 strikes hopper 3 intermittently. At the same time, the rotation of hopper 3 causes the striking rod 438 to strike different positions on the top of hopper 3, so that the vibration amplitude of powder in different positions inside hopper 3 is equal, and at the same time, it prevents local damage to hopper 3 caused by long-term striking of one place.

[0048] Please refer to this carefully. Figure 7 The width of the inner wall of the direct-connect guide rail 435 is equal to the diameter of the toggle pin 437, and the length of the direct-connect guide rail 435 is equal to the diameter of the disc 434. The centers of the disc 434 and the toggle pin 437 are intersected.

[0049] In this embodiment: by setting this structure, when the disk 434 rotates, the movable insert plate 431 reciprocates relative to the guide frame 430 through the actuating pin 437 and the direct connecting guide rail 435.

[0050] Please refer to this carefully. Figure 7 , Figure 8 The bottom of the striking rod 438 is rotatably connected to a ball bearing, and the top of the triangular connecting plate 406 is provided with a through hole that matches the top cross section of the connecting rack 428.

[0051] In this embodiment, this structure is designed to prevent excessive friction between the triangular connecting plate 406 and the connecting rack 428, and also to prevent friction between the hopper 3 and the striking rod 438 when rotating, thereby improving the service life of the striking rod 438 and the connecting rack 428.

[0052] The following describes a feeding method for ferrite injection molded magnetic materials, based on the aforementioned feeding equipment, specifically including the following steps:

[0053] S1: When using this equipment, first install the mounting bracket 1 on the injection molding machine so that the feed pipe 2 is inserted into the feed pipe on the injection molding machine;

[0054] S2: Then the ferrite powder is poured into the hopper 3. When the ferrite powder enters the hopper 3, it is filtered through the collection hopper 411. The clumped ferrite powder falls into the collection hopper 411 under its own gravity, while the unclumped powder passes through the collection hopper 411 and is discharged through the discharge pipe 2.

[0055] S3: Start motor 403. When motor 403 is running, the second transmission spur gear 402 drives the feed pipe 2 to rotate through the first transmission spur gear 401. At this time, the feed pipe 2 will drive the hopper 3 to rotate relative to the mounting frame 1. When the hopper 3 rotates, it drives the rotating shaft 408 to revolve around the center of the feed pipe 2. At the same time, the rotating bevel gear 416 rotates along the bevel gear ring 405. Thus, the rotating shaft 408 rotates relative to the hopper 3 while rotating with the hopper 3. Thus, the rotating shaft 408 drives the transmission shaft 419 to rotate through the fourth transmission bevel gear 427 and the third transmission bevel gear 426. When the transmission shaft 419 rotates, the first transmission bevel gear 424 drives the stirring rod 410 to rotate through the second transmission bevel gear 425. Thus, the stirring rod 410 stirs the ferrite powder accumulated in the hopper 3, thereby increasing the fluidity of the ferrite powder inside the hopper 3 and ensuring the continuity of feeding.

[0056] S4: When the rotating shaft 408 rotates relative to the hopper 3, the reciprocating screw 404 will rotate with the rotating shaft 408. At this time, the movable sleeve 417 moves horizontally along the reciprocating screw 404. When the movable sleeve 417 drives the translation rod 415 to move away from the hopper 3, the translation rod 415 pulls the top of the inclined tie rod 418. At this time, the inclined tie rod 418 drives the collecting hopper 411 and the filter sleeve 412 to rise through the positioning frame 420. During this process, the unagglomerated ferrite powder inside the collecting hopper 411 falls into the discharge pipe 2 through the collecting hopper 411, while the agglomerated ferrite powder will remain in the collecting hopper 411. At the same time, the top of the discharge pipe 2 is blocked by the filter sleeve 412, so that the unagglomerated ferrite powder inside the hopper 3 passes through the filter sleeve 412 and enters the interior of the filter sleeve 412, and is finally discharged from the bottom of the discharge pipe 2.

[0057] S5: As the hopper 411 rises, it is restricted by the rectangular guide rod 407. At this time, the hopper 411 rotates relative to the rectangular guide rod 407 as the hopper 3 rotates. This allows the movable crushing rod 421 to rotate along the center of the connecting shaft 422. This allows the movable crushing rod 421 to crush the ferrite powder that has agglomerated inside the hopper 411 by rotating relative to the positioning crushing rod 423. The crushed ferrite powder passes through the hopper 411 and the filter sleeve 412 and is finally discharged through the discharge pipe 2. When the movable sleeve 417 moves toward the hopper 3, the hopper 411 returns to its original position, and the powder re-enters the hopper 411. This process is repeated to crush the agglomerated powder, thereby preventing the agglomerated ferrite powder from clogging the discharge pipe 2 and preventing the agglomerated ferrite powder from affecting the discharge of the unagglomerated powder, thus increasing the continuity of feeding.

[0058] S6: When the rectangular guide rod 407 moves upward relative to the triangular connecting plate 406, the connecting rack 428 actuates the shifting spur gear 429 to rotate. At this time, the disc 434 rotates with the shifting spur gear 429. During this process, the shifting pin 437 drives the movable insert plate 431, which is limited by the guide frame 430, to reciprocate horizontally through the direct connecting guide rail 435. When the swing plate 441 moves towards the limiting plate 432, the swing plate 441 presses against the guide roller 440. At this time, the striking rod 438 moves upward. When the swing plate 441 separates from the guide roller 440, the limiting plate 432 returns to its original position under the elastic restoring force of the telescopic spring 433. This causes the bottom of the striking rod 438 to impact the top of the hopper 3, thereby causing the hopper 3 to vibrate. This prevents the powder from adhering to the inner wall of the hopper 3, and also causes the powder to move along the hopper under the action of vibration. The bottom slope of 3 faces the top of the feed pipe 2, which not only improves the flowability of powder in the hopper 3, but also improves the cleanliness of the inner wall of the hopper 3. When the movable insert plate 431 moves toward the shift spur gear 429, the swing plate 441 is limited by the guide roller 440 and swings relative to the movable insert plate 431. This allows the swing plate 441 to move to the side of the limit plate 432 close to the guide frame 430. At the same time, the torsion spring 436 makes the swing plate 441 return to its original position. As the movable insert plate 431 moves horizontally back and forth, the striking rod 438 strikes the hopper 3 intermittently. At the same time, the rotation of the hopper 3 causes the striking rod 438 to strike different positions on the top of the hopper 3, so that the vibration amplitude of the powder in different positions inside the hopper 3 is equal, and at the same time, it prevents the hopper 3 from being damaged locally by striking one place for a long time.

[0059] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A feeding device for ferrite injection molded magnetic materials, comprising a mounting frame (1), characterized in that, The inner side of the mounting frame (1) is rotatably connected to the feed pipe (2) via a bearing. The top of the feed pipe (2) is provided with a hopper (3). The inner side of the mounting frame (1) is provided with a motor (403) arranged parallel to the feed pipe (2). The top of the mounting frame (1) is provided with a flow booster located inside the hopper (3). The top of the mounting frame (1) is provided with a triangular connecting plate (406) located above the hopper (3). The top of the triangular connecting plate (406) is equipped with a multi-position material tapping unit. The inner side of the feed pipe (2) is provided with a flow crusher connected to the triangular connecting plate (406); the flow booster includes a second transmission spur gear (402) installed at the output end of the motor (403), and a first transmission spur gear (401) meshing with the second transmission spur gear (402) is installed on the outer wall of the feed pipe (2); a conical gear ring (405) located on the outer side of the top of the hopper (3) is provided on the top of the mounting frame (1); and a through-hole to the feed is provided on the inner side of the hopper (3). A rotating shaft (408) is located on the outer side of the hopper (3). At one end of the rotating shaft (408) away from the center of the hopper (3), a driven bevel gear (416) meshes with a bevel gear ring (405). At the other end of the rotating shaft (408) near the center of the hopper (3), a fourth transmission bevel gear (427) is installed. Support plates (409) located on both sides of the rotating shaft (408) are installed on the inner wall of the hopper (3). The end of the support plate (409) near the center of the hopper (3) is connected to... A drive shaft (419) is rotatably connected to the bearing. A third drive bevel gear (426) that meshes with the fourth drive bevel gear (427) is provided on the drive shaft (419). A first drive bevel gear (424) is installed at both ends of the drive shaft (419). A stirring rod (410) is rotatably connected to the bottom of the support frame plate (409) through the bearing. A second drive bevel gear (425) that meshes with the first drive bevel gear (424) is provided at the top end of the stirring rod (410).

2. The feeding device for ferrite injection molded magnetic materials according to claim 1, characterized in that, The number of the rotating shafts (408) is three, and the three rotating shafts (408) are distributed at equal distances along the center of the hopper (3). The center of the conical gear ring (405) is coaxial with the center of the hopper (3).

3. A feeding device for ferrite injection molded magnetic materials according to claim 2, characterized in that, The flow-through crusher includes a sleeve (413) installed on the inner wall of the feed pipe (2). A rectangular insert (414) is inserted into the top of the sleeve (413). A collection hopper (411) is installed at the top of the rectangular insert (414). A filter sleeve (412) located outside the rectangular insert (414) is installed at the bottom of the collection hopper (411). A movable crushing rod (421) is provided on the inner wall of the collection hopper (411). A connecting shaft (422) coaxial with the center of the collection hopper (411) is provided on the inner side of the collection hopper (411). A positioning crushing rod (423) arranged alternately with the movable crushing rod (421) is provided on the outer side of the connecting shaft (422). 2) A rectangular guide rod (407) is fixed at the top and slides up and down with the triangular connecting plate (406). A positioning frame (420) located outside the rectangular guide rod (407) is installed on the top of the hopper (411). A reciprocating screw (404) is installed at the end of the rotating bevel gear (416) away from the hopper (3). A movable sleeve (417) is sleeved on the reciprocating screw (404). A translation rod (415) extending into the hopper (3) and located below the rotating shaft (408) is provided at the bottom of the movable sleeve (417). A diagonal tie rod (418) connected to the positioning frame (420) is rotatably connected to the end of the translation rod (415) near the center of the hopper (3) through a rotating shaft.

4. A feeding device for ferrite injection molded magnetic materials according to claim 3, characterized in that, The outer diameters of the collecting hopper (411) and the filter sleeve (412) are equal to the inner diameter of the feeding pipe (2).

5. A feeding device for ferrite injection molded magnetic materials according to claim 4, characterized in that, The number of movable crushing rods (421) and positioning crushing rods (423) is set to be multiple, and the multiple movable crushing rods (421) and positioning crushing rods (423) are arranged and staggered along the vertical central axis of the connecting shaft (422) and the collecting hopper (411).

6. A feeding device for ferrite injection molded magnetic materials according to claim 5, characterized in that, The multi-position material striking unit includes a connecting rack (428) mounted on the outside of a rectangular guide rod (407). A guide frame (430) is fixed to the top of the triangular connecting plate (406). A shifting spur gear (429) meshing with the connecting rack (428) is rotatably connected to the inner side of the guide frame (430) via a rotating shaft. A disc (434) is provided on the rotating shaft connecting the shifting spur gear (429) and the guide frame (430). A shifting pin (437) is fixed to one side of the disc (434). A movable insert plate (431) is horizontally inserted into the guide frame (430). A direct connecting guide rail (435) sleeved on the outside of the shifting pin (437) is fixed to the end of the movable insert plate (431) near the connecting rack (428). A top of the triangular connecting plate (406) is inserted into the guide frame. (430) A striking rod (438) on the side away from the connecting rack (428), the top of the striking rod (438) is equipped with a limiting plate (432) above the triangular connecting plate (406), the bottom of the limiting plate (432) is provided with a telescopic spring (433) located outside the striking rod (438) and connected to the triangular connecting plate (406), the two sides of the limiting plate (432) are provided with guide rollers (440), the end of the movable insert plate (431) away from the direct connecting guide rail (435) is rotatably connected to the swing plate (441) through a rotating shaft, the side of the swing plate (441) is provided with a limiting pin (439) above the movable insert plate (431), the outside of the rotating shaft connecting the swing plate (441) and the movable insert plate (431) is engaged with a torsion spring (436) connected to the movable insert plate (431).

7. A feeding device for ferrite injection molded magnetic materials according to claim 6, characterized in that, The width of the inner wall of the direct-connecting guide rail (435) is equal to the diameter of the actuating pin (437), the length of the direct-connecting guide rail (435) is equal to the diameter of the disk (434), and the centers of the disk (434) and the actuating pin (437) are intersecting.

8. A feeding device for ferrite injection molded magnetic materials according to claim 7, characterized in that, The bottom of the striking rod (438) is rotatably connected to a ball bearing, and the top of the triangular connecting plate (406) is provided with a through hole that matches the top cross section of the connecting rack (428).

9. A feeding method for ferrite injection molded magnetic materials, characterized in that, The feeding device for ferrite injection molded magnetic materials as described in claim 8 includes the following steps: S1: When using this equipment, first install the mounting bracket (1) on the injection molding machine so that the feed pipe (2) is inserted into the feed pipe on the injection molding machine; S2: Then pour the ferrite powder into the hopper (3) and start the motor (403). Through the cooperation of the motor (403) and the flow booster, the feed pipe (2) drives the hopper (3) to rotate relative to the mounting frame (1). During this process, the flow booster stirs the ferrite powder inside the hopper (3), which increases the fluidity of the ferrite powder inside the hopper (3). S3: At the same time, the powder material in the hopper (3) is filtered and crushed by the combination of the flow booster and the flow crusher. As the flow crusher operates, the multi-position knocking unit knocks on the top of the hopper (3). S4: The crushed powder passes through the feed pipe (2) and falls into the injection molding machine.

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