A molding equipment and process for iron-silicon-aluminum magnetic powder cores

Abstract

This invention relates to an iron-silicon-aluminum magnetic powder core forming equipment and its process; it includes a fixed plate, a support plate mounted on the fixed plate via a spring rod, and a mounting plate and a sliding plate sequentially mounted on the support plate. An extrusion device is mounted on the fixed plate, comprising an extrusion mechanism and a vibration mechanism. This invention solves the following problems existing in the forming process of iron-silicon-aluminum materials in the prior art: First, by setting a vibration mechanism, before extruding the iron-silicon-aluminum magnetic powder, vibration is used to level both the inside and outside of the powder, greatly improving the uniformity of the particle distribution; second, by setting multiple sets of mold rings, in conjunction with the extrusion device, multiple sets of mold rings can be extruded simultaneously to form iron-silicon-aluminum magnetic powder. Compared to the traditional single-piece production mode using only a single mold, multiple sets of mold rings can extrude multiple magnetic powder blanks at the same time, greatly shortening the overall production cycle.

Description

Technical Field

[0001] This invention relates to the field of iron-silicon-aluminum material forming equipment, and particularly to an iron-silicon-aluminum magnetic powder core forming equipment and its process. Background Technology

[0002] Iron-silicon-aluminum magnetic powder cores are made from alloy powders of 85% iron, 9% silicon, and 6% aluminum. They are formed into a soft magnetic material with a distributed air gap structure through processes such as insulating coating and pressing. Small amounts of other elements, such as zirconium and niobium, are often added to improve the material's properties. Its microstructure consists of tiny magnetic particles encapsulated in an insulating layer to reduce eddy current losses.

[0003] As a key soft magnetic material for high-frequency power electronic devices, the performance of iron-silicon-aluminum magnetic powder cores is highly dependent on the uniformity of powder filling before pressing. Vibration leveling aims to eliminate gaps in powder accumulation and improve the uniformity of filling density through mechanical vibration, thereby improving the magnetic permeability stability and high-frequency loss characteristics of the magnetic powder core. However, traditional vibration leveling devices can only locally vibrate the surface layer of the powder within the mold. Due to the poor flowability and high coefficient of friction between iron-silicon-aluminum powder particles, the inner layer of powder is difficult to fluidize, resulting in uneven distribution of vibration energy and significant differences in leveling effects between the inner and outer layers.

[0004] In the prior art, such as the patent with publication number CN119489190A, a molding device for iron-silicon materials and its usage method are disclosed. It utilizes a combination of a compaction mechanism, a molding mechanism, an jacking mechanism and a vibration mechanism to facilitate the vibration and compaction of powder entering the mold cavity, reduce the unevenness of the pressed blank, enable bidirectional compaction of the blank, and improve the convenience of unloading the compacted blank.

[0005] However, although this technology has improved some of the original problems, there are still aspects that need further optimization to better meet actual testing needs.

[0006] 1. Before compacting the powder in the mold cavity, the above-mentioned device uses a vibration mechanism to level the powder, facilitating subsequent compaction. However, external vibration alone may result in voids within the powder, failing to ensure that the powder fully fills all corners and tiny gaps in the mold cavity. Because the powder particles are uneven in size and shape, larger particles may shift due to vibration inertia during vibration, creating voids in their original positions. Smaller particles, on the other hand, cannot completely fill these voids within the limited vibration time.

[0007] 2. The aforementioned device uses only a single mold to press and shape the raw material. In single-piece production mode, this directly affects each workpiece, resulting in significant quality differences between different workpieces. To achieve batch consistency control, precise control of each influencing factor is required. However, due to the intertwining and complex influence of these factors, the difficulty of batch consistency control is undoubtedly greatly increased, making it difficult to ensure that the entire batch of products meets a uniform high-quality standard.

[0008] Therefore, based on the above-stated viewpoints, there is still room for optimization in the existing technology regarding the iron-silicon material forming apparatus and its usage method. It can improve the vibration compaction effect of the powder inside the mold and also enable the simultaneous production of multiple workpieces, thereby increasing production output. Summary of the Invention

[0009] To address the aforementioned problems, this invention provides an iron-silicon-aluminum magnetic powder core forming device and its process.

[0010] On one hand, an iron-silicon-aluminum magnetic powder core forming device includes a fixed plate, a support plate is set above the fixed plate via a spring rod, and an mounting plate and a sliding plate are arranged sequentially above the support plate.

[0011] The fixed plate is equipped with an extrusion device, which includes an extrusion mechanism and a vibration mechanism.

[0012] The extrusion mechanism includes a working groove on the mounting plate, with multiple sets of mold rings equidistantly arranged inside the working groove, and multiple extrusion columns equidistantly installed on the slide plate, with extrusion rings slidably sleeved on the extrusion columns.

[0013] The vibration mechanism includes a rotating shaft rotatably disposed inside the extrusion column. An extension groove is provided inside the extrusion column. The rotating shaft is rotatably installed inside the extension groove. Extension blocks are equidistantly disposed on the rotating shaft along its axis. Multiple sets of extension blocks are provided. Multiple fixing blocks corresponding to the extension blocks are equidistantly disposed on the inner wall of the extension groove along its axis.

[0014] Preferably, the extension block is a spring-loaded telescopic structure, and the end of the extension block opposite to the fixed block is set as a matching abutting slope.

[0015] Preferably, the vibration mechanism further includes vibration blocks, which are slidably disposed in the working groove. Multiple vibration blocks are connected to each other by connecting rods, which are connected to the inner wall of the working groove by springs.

[0016] Preferably, the vibration mechanism further includes multiple drive slots that pass through the connecting rod, with multiple triangular blocks equidistantly installed inside the drive slots along their height direction, and an L-shaped mounting rod on the slide plate, the shorter end of which engages with the triangular block.

[0017] Preferably, a fixing ring is also installed on the extrusion column above the extrusion ring. A pusher motor is embedded inside the fixing ring, and a screw is connected to the output shaft of the pusher motor. The extrusion ring is threadedly connected to the screw.

[0018] Preferably, the pusher motors at the four corners of the mounting plate are dual-shaft motors. A second screw is provided on one output shaft of the pusher motor near the slide plate. The second screw is rotatably connected to the fixed ring. The second screw passes through the fixed ring and is threadedly connected to a synchronizing rod. A square push ring is provided above the mounting plate. The push ring is connected to multiple synchronizing rods. The push ring slides in contact with the mounting plate and moves against the support plate.

[0019] Preferably, the fixing plate is further provided with a fixing component for fixing the support plate. The fixing component includes a plug, which is slidably set by the support rod and has a spring telescopic structure. The support plate is provided with a plug groove for movably plugging into the plug.

[0020] Preferably, drive screws are symmetrically installed on the fixed plate along its width direction, and push rods are provided on the two drive screws with a common thread. A conveyor belt is provided on one side of the fixed plate along its length direction, and the lower bottom surface of the push rod slides in contact with the upper bottom surface of the support plate.

[0021] Preferably, a mating block is provided on the support rod along its height direction. The mating block is a spring telescopic structure, and the side of the mating block opposite to the push rod is set as a mating abutment slope.

[0022] On the other hand, a process for forming an iron-silicon-aluminum magnetic powder core includes the following steps:

[0023] S1. Powder conveying: Conveying iron-silicon-aluminum magnetic powder into the mold ring;

[0024] S2. Powder Vibration: The iron-silicon-aluminum magnetic powder is vibrated and leveled by striking the extrusion column and the mold ring.

[0025] S3, Extrusion molding: The extrusion column and extrusion ring cooperate with the mold ring. Through the extrusion of the extrusion column and extrusion ring, the iron-silicon-aluminum magnetic powder in the mold ring is extruded into shape.

[0026] S4. Demolding and Collection: After extrusion molding, the iron-silicon-aluminum magnetic powder core inside the mold ring is pushed to fall onto the support plate for unified collection.

[0027] S5. Unified Collection: The iron-silicon-aluminum magnetic powder core on the support plate is pushed close to the conveyor belt by the push rod and then uniformly transported and collected by the conveyor belt.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] I. This invention, by incorporating a vibration mechanism, levels the iron-silicon-aluminum magnetic powder both internally and externally before extrusion molding, significantly improving the uniformity of particle distribution. With a uniform particle distribution, the pressure on each part can be transmitted and distributed more evenly during subsequent extrusion molding. This avoids the problem of pressure concentration in some areas and insufficient pressure in others due to uneven particle distribution.

[0030] Second, by setting up multiple sets of mold rings in conjunction with the extrusion device, this invention can simultaneously extrude iron-silicon-aluminum magnetic powder into multiple mold rings. Compared with the traditional single-piece production mode that only uses a single mold, multiple sets of mold rings can extrude multiple magnetic powder blanks at the same time, which greatly shortens the overall production cycle. It can also effectively reduce quality problems caused by individual differences, ensure the quality of the entire batch of products is stable, meet the unified high-quality standards, and enhance the company's product reputation and market competitiveness. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0033] Figure 2 This is a schematic diagram of the structure of the fixing plate of the present invention.

[0034] Figure 3 This is a schematic diagram of the extrusion mechanism of the present invention.

[0035] Figure 4 This is the present invention. Figure 3 A schematic diagram of the structure at point A in the middle.

[0036] Figure 5 This is a schematic diagram of the structure on the mounting plate of the present invention.

[0037] Figure 6 This is the present invention. Figure 5 A schematic diagram of the structure at point B.

[0038] Figure 7 This is a schematic diagram of the internal structure of the extrusion column of the present invention.

[0039] Figure 8 This is a schematic diagram of the structure of the present invention that drives the support plate to move.

[0040] Figure 9 This is a schematic diagram of the internal structure of the extrusion ring and the fixing ring of the present invention.

[0041] Figure 10 This is a schematic diagram of the structure for fixing the support plate according to the present invention.

[0042] Figure 11 This is a structural schematic diagram of the fastener of the present invention.

[0043] Figure 12 This is a schematic diagram of the feeding structure of the present invention.

[0044] Figure 13 This is a schematic diagram of the structure for controlling the rotation of the output tube according to the present invention.

[0045] In the diagram, 1. Fixed plate; 10. Support plate; 11. Mounting plate; 12. Slide plate; 2. Extrusion device; 20. Extrusion mechanism; 200. Working groove; 201. Die ring; 202. Extrusion column; 203. Extrusion ring; 21. Vibration mechanism; 210. Rotating shaft; 211. Extension groove; 212. Extension block; 213. Fixed block; 214. Vibrating block; 215. Connecting rod; 216. Drive groove; 217. Triangular block; 218. Mounting rod; 30. Fixed ring; 31. Pushing motor; 32. Screw one; 40. Screw two; 41. Synchronizing rod; 42. Push ring; 5. Fixing component; 50. Insertion block; 51. Insertion groove; 60. Drive screw; 61. Push rod; 62. Conveyor belt; 70. Mating block; 80. Support plate; 81. Output pipe; 82. Drive block. Detailed Implementation

[0046] The following combination Figures 1 to 13 The embodiments of the present invention will be described in detail below.

[0047] This application discloses an iron-silicon-aluminum magnetic powder core forming equipment and its process. This invention is mainly applied in the forming process of iron-silicon materials. Technically, before pressing the iron-silicon-aluminum magnetic powder core, vibration is used to level the iron-silicon-aluminum magnetic powder entering the mold. Compared to traditional external vibration, vibration of the mold and the pressing component improves the vibration effect, ensuring no gaps are generated between the iron-silicon-aluminum magnetic powder particles, thus guaranteeing the quality of the subsequent pressing of the iron-silicon-aluminum magnetic powder core. Furthermore, this invention can simultaneously produce multiple iron-silicon-aluminum magnetic powder cores, increasing the output of a single batch. Under the same batch production conditions, the process parameters are more stable, which helps reduce performance differences between batches and ensures the consistency of key characteristics such as high saturation magnetic flux density and low loss of the magnetic powder core.

[0048] Example 1:

[0049] Reference Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, an iron-silicon-aluminum magnetic powder core forming device includes a fixed plate 1, a support plate 10 is provided above the fixed plate 1 via a spring rod, and an mounting plate 11 and a sliding plate 12 are arranged sequentially above the support plate 10.

[0050] An extrusion device 2 is provided on the fixed plate 1. The extrusion device 2 includes an extrusion mechanism 20 and a vibration mechanism 21. The iron-silicon-aluminum magnetic powder is pressed into shape by extrusion molding. Before pressing, the vibration mechanism 21 removes the gaps between the iron-silicon-aluminum magnetic powder.

[0051] The extrusion mechanism 20 includes a working groove 200 on the mounting plate 11. Multiple sets of mold rings 201 are equidistantly arranged inside the working groove 200. The bottom of the mounting plate 11 is provided with a guide groove corresponding to the mold rings 201. It should be noted that the bottom surface of the mounting plate 11 is in contact with the upper surface of the support plate 10. In the initial state, the bottom surface of the mounting plate 11 is always in contact with the upper surface of the support plate 10. The iron-silicon-aluminum magnetic powder is transported into the mold rings 201 and falls onto the support plate 10 through the guide groove. Multiple extrusion columns 202 are equidistantly installed on the slide plate 12. Extrusion rings 203 are slidably sleeved on the extrusion columns 202. A mounting bracket is provided on the fixed plate 1, and a cylinder is provided on the mounting bracket. The telescopic end of the cylinder is connected to the slide plate 12. The cylinder controls the lifting and lowering of the slide plate 12, which in turn causes the extrusion column 202 and the extrusion ring 203 to descend. The extrusion column 202 and the extrusion ring 203 cooperate with the mold ring 201. Through the extrusion of the extrusion column 202 and the extrusion ring 203, the iron-silicon-aluminum magnetic powder in the mold ring 201 is extruded into shape. The extruded iron-silicon-aluminum magnetic powder core is ring-shaped.

[0052] The vibration mechanism 21 includes a rotating shaft 210 rotatably disposed inside the extrusion column 202. An extension groove 211 is provided inside the extrusion column 202. The rotating shaft 210 is rotatably mounted inside the extension groove 211. Extension blocks 212 are equidistantly disposed on the rotating shaft 210 along its axis. Multiple sets of extension blocks 212 are provided. Multiple fixing blocks 213 corresponding to the extension blocks 212 are equidistantly disposed on the inner wall of the extension groove 211 along its axis.

[0053] The extension block 212 is a spring telescopic structure, and the end of the extension block 212 opposite to the fixed block 213 is set as a matching abutting slope.

[0054] This invention controls the rotation of the rotating shaft 210 via an external drive. When the rotating shaft 210 rotates, the extension block 212 on the rotating shaft 210 will rotate synchronously. When the inclined surface on the extension block 212 contacts the inclined surface on the fixed block 213, the fixed block 213 will drive the extension block 212 to retract in the opposite direction. When the extension block 212 continues to rotate and loses the restriction of the fixed block 213, it will instantly extend under the action of the spring. The extension end of the extension block 212 will instantly contact the inner wall of the extrusion column 202, which will drive the extrusion column 202 to vibrate. During the process of the extrusion column 202 descending, the iron-silicon-aluminum magnetic powder inside the mold ring 201 will be vibrated and leveled by the vibration of the extrusion column 202.

[0055] Reference Figure 4 , Figure 5and Figure 6 The diagram shows a structure that drives the mold ring 201 to vibrate and further vibrate and level the iron-silicon-aluminum magnetic powder. Specifically, the vibration mechanism 21 also includes a vibration block 214, which is slidably disposed in the working groove 200. Multiple vibration blocks 214 are connected to each other by a connecting rod 215, which is connected to the inner wall of the working groove 200 by a spring.

[0056] By controlling the connecting rod 215 to slide inside the working groove 200, the vibrating block 214 slides inside the working groove 200. When the vibrating block 214 slides, it will continuously strike the mold ring 201, which will cause the mold ring 201 to vibrate, thereby further improving the leveling efficiency of iron-silicon-aluminum magnetic powder.

[0057] By synchronously cooperating with the extension block 212 and the vibration block 214, the iron-silicon-aluminum magnetic powder is leveled both inside and out by vibration before being pressed into shape, thereby improving the uniformity of the iron-silicon-aluminum magnetic powder particle distribution and ensuring the manufacturing quality of the iron-silicon-aluminum magnetic powder core.

[0058] Reference Figure 4 , Figure 5 and Figure 6 The diagram shows the structure of the control connecting rod 215 sliding in the working groove 200. Specifically, the vibration mechanism 21 also includes multiple drive grooves 216 that pass through the connecting rod 215. Multiple triangular blocks 217 are equidistantly installed inside the drive grooves 216 along their height direction. An L-shaped mounting rod 218 is provided on the slide plate 12. The shorter end of the mounting rod 218 is movably engaged with the triangular block 217.

[0059] During the descent of the slide plate 12, the mounting rod 218 on the slide plate 12 will gradually approach the triangular block 217 in the drive groove 216. When the shorter end of the mounting plate 11 contacts the triangular block 217, the mounting rod 218 will squeeze the triangular block 217, forcing the triangular block 217 to slide, which in turn forces the connecting rod 215 to slide. When the mounting rod 218 enters the gap between two adjacent triangular blocks 217, the triangular block 217 loses the squeezing force of the connecting rod 215. At this time, the connecting rod 215 also loses the squeezing force and returns to its initial state under the action of the spring. During the sliding process, the vibration block 214 on the mounting rod 218 will strike the mold ring 201 under the action of the spring.

[0060] By installing multiple triangular blocks 217 in the drive groove 216, and using the cooperation between the triangular blocks 217 and the mounting rod 218, the vibrating block 214 on the connecting rod 215 is forced to strike the mold ring 201 multiple times, and the iron-silicon-aluminum magnetic powder in the mold ring 201 is leveled by vibration.

[0061] Reference Figure 8 and Figure 9The diagram shows the structure for feeding the formed iron-silicon-aluminum magnetic powder core. Specifically, a fixing ring 30 is installed on the extrusion column 202 above the extrusion ring 203. A pusher motor 31 is embedded inside the fixing ring 30. A screw 32 is connected to the output shaft of the pusher motor 31. The extrusion ring 203 is threadedly connected to the screw 32.

[0062] After the iron-silicon-aluminum magnetic powder core is extruded and formed, it needs to be pushed out of the mold ring 201 for unified collection.

[0063] The screw 32 is rotated by the pusher motor 31. At this time, the extrusion ring 203 will move along the height direction of the extrusion column 202 towards the support plate 10 under the drive of the screw 32. During this process, the extrusion ring 203 will push the iron-silicon-aluminum magnetic powder core in the mold ring 201 towards the support plate 10. The iron-silicon-aluminum magnetic powder core that is pushed out of the mold ring 201 will fall onto the support plate 10 for unified collection.

[0064] Reference Figure 8 and Figure 9 The diagram shows the structure for controlling the descent of the support plate 10. Specifically, the pusher motors 31 at the four corners of the mounting plate 11 are dual-axis motors. A screw 40 is provided on one output shaft of the pusher motor 31 near the slide plate 12. The screw 40 is rotatably connected to the fixing ring 30. The screw 40 passes through the fixing ring 30 and is threadedly connected to the synchronizing rod 41. A square push ring 42 is provided above the mounting plate 11. The push ring 42 is connected to multiple synchronizing rods 41. The push ring 42 slides in contact with the mounting plate 11 and moves against the support plate 10.

[0065] Since the iron-silicon-aluminum magnetic powder core needs to be pushed out of the mold ring 201 and placed on the support plate 10, the support plate 10 needs to be driven to descend synchronously during the descent of the iron-silicon-aluminum magnetic powder core to prevent the support plate 10 from not moving and thus blocking the descent of the iron-silicon-aluminum magnetic powder core.

[0066] During the process of the iron-silicon-aluminum magnetic powder core being pushed out, the pusher motors 31 at the four corners of the mounting plate 11 will synchronously drive the screw 40 to rotate. At this time, the synchronizing rod 41, which is threadedly connected to the screw 40, will descend under the drive of the screw 40. During the descent of the synchronizing rod 41, it will bring down the push ring 42. The push ring 42 will push the support plate 10 and the iron-silicon-aluminum magnetic powder core to move synchronously until the iron-silicon-aluminum magnetic powder core is completely pushed out of the mold ring 201. The iron-silicon-aluminum magnetic powder core will be placed on the support plate 10, waiting for subsequent unified collection.

[0067] Reference Figure 10 and Figure 11The diagram shows the structure of fixing the support plate 10 after it is lowered. Specifically, the fixing plate 1 is also provided with a fixing member 5 for fixing the support plate 10. The fixing member 5 includes a plug 50, which is slidably set by the support rod and has a spring telescopic structure. The support plate 10 is provided with a plug groove for movably plugging into the plug 50.

[0068] As the support plate 10 descends, the insertion slot on the support plate 10 gradually approaches the insertion block 50. The insertion block 50 contracts under the squeezing action of the support plate 10. When the insertion block 50 corresponds to the insertion slot, the insertion block 50 is inserted into the insertion slot under the force of the spring, thus fixing the support plate 10.

[0069] At this time, the extrusion ring 203 will return to its initial position under the action of the pusher motor 31, and the pusher ring 42 will also rise synchronously, no longer resisting the support plate 10. The support plate 10 will also be fixed in place by the cooperation of the insert block 50 and the insertion slot, which will facilitate the subsequent collection of the iron-silicon-aluminum magnetic powder core on the support plate 10.

[0070] Reference Figure 10 and Figure 11 The diagram shows a structure for uniformly collecting iron-silicon-aluminum magnetic powder cores on the support plate 10. Specifically, drive screws 60 are symmetrically installed on the fixed plate 1 along its width direction, and push rods 61 are threaded on the two drive screws 60. A conveyor belt 62 is provided on one side of the fixed plate 1 along its length direction, and the lower bottom surface of the push rod 61 slides in contact with the upper bottom surface of the support plate 10.

[0071] The external drive controls the rotation of the drive screw 60. At this time, the push rod 61 on the drive screw 60 will gradually approach the support plate 10 under the action of the drive screw 60, slide on the support plate 10, and push the iron-silicon-aluminum magnetic powder core on the support plate 10 to approach the conveyor belt 62. After moving onto the conveyor belt 62, it is uniformly transported and collected by the conveyor belt 62.

[0072] Reference Figure 10 and Figure 11 As shown, this is a schematic diagram of the structure for controlling the support plate 10 to return to its initial state; specifically, a mating block 70 is provided on the support rod along its height direction. The mating block 70 is a spring telescopic structure, and the side of the mating block 70 opposite to the push rod 61 is set as a mating abutment slope.

[0073] As push rod 61 approaches conveyor belt 62, the inclined surface on push rod 61 presses against mating block 70, causing mating block 70 to extend and retract. After continuous movement, mating block 70 loses the pressing force of push rod 61 and returns to its extended state. When push rod 61 moves away from conveyor belt 62, push rod 61 will engage with the straight surface of mating block 70, causing mating block 70 to slide as a whole. At this time, it will also slide synchronously with insert block 50, causing insert block 50 to cancel its engagement with the insertion slot, so that support plate 10 returns to its initial height under the action of spring rod and contacts mounting plate 11 again.

[0074] Example 2:

[0075] Reference Figure 4 As shown, based on Example 1, in order to ensure that the iron-silicon-aluminum magnetic powder can accurately enter the mold ring 201;

[0076] Reference Figure 12 and Figure 13 The diagram shows the structure of pouring iron-silicon-aluminum magnetic powder into the mold ring 201. Specifically, a support plate 80 is also provided on the mounting frame above the slide plate 12. Multiple output pipes 81 corresponding to the mold ring 201 are rotatably arranged on the support plate 80. Multiple through slots corresponding to the output pipes 81 are opened on the slide plate 12. The output pipes 81 are installed with discharge pipes through the through slots.

[0077] A spiral groove is provided on the inner wall of the through-hole, and a drive block 82 that cooperates with the spiral groove is installed on the outer wall of the output pipe 81.

[0078] The iron-silicon-aluminum magnetic powder enters the discharge pipe through the output pipe 81, and is then transported by the discharge pipe to the mold ring 201 for the next extrusion molding process.

[0079] The discharge pipe is bent to ensure that the discharge port of the discharge pipe can be aligned with the inside of the mold ring 201.

[0080] During the descent of the slide plate 12, the iron-silicon-aluminum magnetic powder needs to be pressed and formed. The spiral groove on the slide plate 12 will drive the output pipe 81 to rotate, which will cause the discharge pipe to rotate, thus deflecting the discharge end on the discharge pipe to prevent the extrusion column 202 from colliding with the discharge pipe during the descent.

[0081] In addition, the present invention also provides a process for forming an iron-silicon-aluminum magnetic powder core, comprising the following steps:

[0082] S1. Iron-silicon-aluminum magnetic powder enters the discharge pipe through the output pipe 81, and is then transported to the mold ring 201 by the discharge pipe.

[0083] S2. The cylinder controls the lifting and lowering of the slide plate 12, which in turn lowers the extrusion column 202 and the extrusion ring 203. During the descent, the rotating shaft 210 inside the extrusion column 202 rotates. The extension block 212 on the rotating shaft 210, under the action of the fixed block 213, drives the extrusion column 202 to vibrate, which vibrates and flattens the iron-silicon-aluminum magnetic powder inside the mold ring 201. Simultaneously, during the descent of the slide plate 12, the mounting rod 218 on the slide plate 12 cooperates with the triangular block 217, which forces the vibration block 214 on the mounting rod 218 to strike the mold ring 201.

[0084] S3, extrusion column 202 and extrusion ring 203 will cooperate with mold ring 201, and the iron-silicon-aluminum magnetic powder in mold ring 201 will be extruded and formed by the extrusion of extrusion column 202 and extrusion ring 203.

[0085] S4. After extrusion molding, the screw 32 is rotated by the pusher motor 31, which drives the extrusion ring 203 to push the iron-silicon-aluminum magnetic powder core in the mold ring 201 towards the support plate 10. The iron-silicon-aluminum magnetic powder core that is pushed out of the mold ring 201 will fall onto the support plate 10 for unified collection.

[0086] S5. Simultaneously, the pusher motors 31 at the four corners of the mounting plate 11 will rotate the screw 40. The screw 40 drives the synchronizing rod 41 to descend, which in turn drives the push ring 42 to descend. The push ring 42 pushes the support plate 10 and the iron-silicon-aluminum magnetic powder core to move synchronously until the iron-silicon-aluminum magnetic powder core is completely pushed out of the mold ring 201. The iron-silicon-aluminum magnetic powder core will then be placed on the support plate 10.

[0087] S6. As the support plate 10 descends, the insertion slot on the support plate 10 will gradually approach the insertion block 50. The insertion block 50 will contract under the squeezing action of the support plate 10. When the insertion block 50 corresponds to the insertion slot, the insertion block 50 will be inserted into the insertion slot under the action of the spring to fix the support plate 10.

[0088] S7. The external drive control drives the screw 60 to rotate. At this time, the push rod 61 on the screw 60 will gradually approach the support plate 10 under the action of the screw 60, slide on the support plate 10, and push the iron-silicon-aluminum magnetic powder core on the support plate 10 to approach the conveyor belt 62. After moving to the conveyor belt 62, it is uniformly transported and collected by the conveyor belt 62.

[0089] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and not restrictive.

[0090] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A molding equipment for iron-silicon-aluminum magnetic powder cores, comprising a fixing plate (1), characterized in that: A support plate (10) is provided above the fixed plate (1) via a spring rod, and an mounting plate (11) and a sliding plate (12) are arranged above the support plate (10) in sequence. A pressing device (2) is provided on the fixed plate (1). The pressing device (2) includes a pressing mechanism (20) and a vibration mechanism (21). The extrusion mechanism (20) includes a working groove (200) opened on the mounting plate (11), and multiple sets of mold rings (201) are equidistantly arranged inside the working groove (200). Multiple extrusion columns (202) are equidistantly installed on the slide plate (12), and extrusion rings (203) are slidably sleeved on the extrusion columns (202). The vibration mechanism (21) includes a rotating shaft (210) rotatably disposed inside the extrusion column (202). An extension groove (211) is provided inside the extrusion column (202). The rotating shaft (210) is rotatably mounted inside the extension groove (211). Extension blocks (212) are equidistantly disposed on the rotating shaft (210) along its axis. Multiple sets of extension blocks (212) are provided. Multiple fixing blocks (213) corresponding to the extension blocks (212) are equidistantly disposed on the inner wall of the extension groove (211) along its axis. The vibration mechanism (21) also includes a vibration block (214), which is slidably disposed in the working groove (200). Multiple vibration blocks (214) are connected to each other by a connecting rod (215), and the connecting rod (215) is connected to the inner wall of the working groove (200) by a spring. The vibration mechanism (21) also includes multiple drive slots (216) that pass through the connecting rod (215). Multiple triangular blocks (217) are installed at equal intervals along the height direction inside the drive slots (216). An L-shaped mounting rod (218) is provided on the slide plate (12). The shorter end of the mounting rod (218) is in movable cooperation with the triangular block (217).

2. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: The extension block (212) is a spring telescopic structure, and the end of the extension block (212) opposite to the fixed block (213) is set as a matching abutting slope.

3. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: A fixing ring (30) is also installed on the extrusion column (202) above the extrusion ring (203). A pusher motor (31) is embedded inside the fixing ring (30). A screw (32) is connected to the output shaft of the pusher motor (31). The extrusion ring (203) is threadedly connected to the screw (32).

4. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: The pusher motors (31) at the four corners of the mounting plate (11) are dual-shaft motors. A screw (40) is provided on one output shaft of the pusher motor (31) near the slide plate (12). The screw (40) is rotatably connected to the fixed ring (30). The screw (40) passes through the fixed ring (30) and is threadedly connected to the synchronizing rod (41). A square push ring (42) is provided above the mounting plate (11). The push ring (42) is connected to multiple synchronizing rods (41). The push ring (42) slides in contact with the mounting plate (11) and moves against the support plate (10).

5. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: The fixing plate (1) is also provided with a fixing member (5) for fixing the support plate (10). The fixing member (5) includes a plug (50), which is slidably set by the support rod. The plug (50) is a spring telescopic structure. The support plate (10) is provided with a plug groove for movably plugging into the plug (50).

6. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: A drive screw (60) is symmetrically installed on the fixed plate (1) along its width direction. A push rod (61) is provided on the two drive screws (60) with a common thread. A conveyor belt (62) is provided on one side of the fixed plate (1) along its length direction. The bottom surface of the push rod (61) slides in contact with the top surface of the support plate (10).

7. The iron-silicon-aluminum magnetic powder core forming equipment according to claim 1, characterized in that: A mating block (70) is provided on the support rod along its height direction. The mating block (70) is a spring telescopic structure. The side of the mating block (70) opposite to the push rod (61) is set as a mating abutment slope.

8. A process for forming iron-silicon-aluminum magnetic powder cores, using an iron-silicon-aluminum magnetic powder core forming device as described in any one of claims 1-7, characterized in that, The molding process includes the following steps: S1, Powder conveying: conveying iron-silicon-aluminum magnetic powder to the mold ring (201); S2, Powder Vibration: The iron-silicon-aluminum magnetic powder is vibrated and leveled by striking the extrusion column (202) and the mold ring (201); S3, Extrusion molding: The extrusion column (202) and the extrusion ring (203) will cooperate with the mold ring (201). Through the extrusion of the extrusion column (202) and the extrusion ring (203), the iron-silicon-aluminum magnetic powder in the mold ring (201) will be extruded into shape. S4. Demolding and collection: After extrusion molding, push the iron-silicon-aluminum magnetic powder core in the mold ring (201) to fall onto the support plate (10) for unified collection; S5. Unified collection: The iron-silicon-aluminum magnetic powder core on the support plate (10) is pushed close to the conveyor belt (62) by the push rod (61) and then uniformly transported and collected by the conveyor belt (62).

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