Powder forming device suitable for efficient production of sendust soft magnetic core
By introducing a hydraulic drive and cooling system into the iron-silicon-aluminum soft magnetic core powder molding device, the problem of difficult demolding was solved, achieving efficient production and improved product quality.
Patent Information
- Application Number
- CN202520189890.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing iron-silicon-aluminum soft magnetic core powder molding equipment has difficulties in the demolding process, resulting in low production efficiency and poor product quality, and may even damage the product.
A powder forming device was designed, comprising a hydraulic device, a support rod, a telescopic rod, a demolding pin, and a cooling component. The device utilizes hydraulically driven telescopic rods to achieve uniform force demolding, and cools the ejector pin before demolding using the principle of thermal expansion and contraction to reduce demolding resistance.
It improves the production efficiency and product quality of iron-silicon-aluminum soft magnetic cores, reduces the risk of damage during demolding, and ensures the stability of product appearance and performance.
Smart Images

Figure CN223842755U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of powder forming equipment, specifically a powder forming equipment suitable for the efficient production of iron-silicon-aluminum soft magnetic cores. Background Technology
[0002] Iron-silicon-aluminum soft magnetic alloy cores are soft magnetic alloy materials with iron, silicon, and aluminum as the main constituent elements. They have low losses at high frequencies and are suitable for applications such as high-frequency transformers and inductors.
[0003] In the current powder molding production process of iron-silicon-aluminum soft magnetic cores, traditional equipment often encounters difficulties in the demolding stage. This may be due to factors such as unreasonable mold structure, imperfect demolding mechanism, or lack of effective demolding assistance. Demolding difficulties not only reduce production efficiency but may also damage the product, affect its appearance and performance, and increase production costs. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a powder forming device suitable for the efficient production of iron-silicon-aluminum soft magnetic cores. It can eject the formed iron-silicon-aluminum soft magnetic cores, achieve different demolding strokes and demolding forces, improve production efficiency and product quality, and utilize the principle of thermal expansion and contraction to create a tiny gap between the formed magnetic core and the ejector pin, reducing demolding resistance. The cooling device can be air-cooled or water-cooled, and the cooling temperature is adjustable.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a powder forming device suitable for the efficient production of iron-silicon-aluminum soft magnetic cores, comprising,
[0008] A molding component, the molding component including a device frame;
[0009] The demolding component includes a support rod, a hydraulic device, a forming groove, demolding holes, a telescopic rod, and demolding pins. Multiple hydraulic devices are connected to the inner surface of the device frame. The support rod is connected to the middle of the top of the hydraulic device. The telescopic rod is connected to the top of the support rod. Demolding pins are distributed on the upper surface of the telescopic rod. Multiple demolding holes are opened on the inner surface of the forming groove. Demolding pins are located inside the demolding holes.
[0010] Preferably, the demolding component further includes a support plate and a collar, the support plate being connected to the bottom of the demolding pin, and the collar being connected to the middle of the bottom end of the support plate and sleeved onto the top of the telescopic rod.
[0011] Preferably, the demolding component further includes a fixing hole, a fixing rod, and a fixing ring. The telescopic rod and the collar are both provided with fixing holes. The fixing rod is inserted into the fixing hole and connected to the outside of the fixing rod.
[0012] Preferably, the molding component further includes a guide rod, a motor, an upper mold, and a molding block. The guide rod is connected to the top of the device frame, the upper mold is connected to the outer surface of the guide rod, the molding block is connected to the middle of the bottom end of the upper mold, and the motor is connected to the middle of the top end of the upper mold.
[0013] Preferably, it also includes a cooling component, which includes a plug, an inner groove, an upper condensing ring, a bottom ring, a lower condensing ring, an extension block, a reinforcing ring, and a support frame. The top of the inner surface of the device frame has an inner groove, the upper and lower condensing rings are distributed inside the inner groove, the bottom ring is connected to the bottom of the lower condensing ring, the extension block is connected to the outer surface of the bottom ring, and the support frame is connected between the upper and lower condensing rings.
[0014] Preferably, a plug is connected to the top of the inner surface of the device frame, the plug is inserted into the inside of the extension block, and a reinforcing ring is connected to the outside of the plug.
[0015] (III) Beneficial Effects
[0016] This invention provides a powder forming device suitable for the efficient production of iron-silicon-aluminum soft magnetic cores. It has the following beneficial effects:
[0017] (1) This powder forming device, which is suitable for the efficient production of iron-silicon-aluminum soft magnetic cores, is equipped with a hydraulic device, support rod, telescopic rod, demolding hole and demolding pin on the top of the device frame, and multiple sets of demolding pins are installed at the bottom of the device frame. Multiple demolding holes are opened inside the forming groove, and the demolding pins are located inside the demolding holes to ensure uniform force during demolding. Driven by the hydraulic device, the telescopic rod extends inside the support rod, so that the formed iron-silicon-aluminum soft magnetic core can be ejected. Different demolding strokes and demolding forces can be achieved to improve production efficiency and product quality.
[0018] (2) This powder forming device, suitable for the efficient production of iron-silicon-aluminum soft magnetic cores, features an inner groove at the bottom of the inner surface of the device housing. Upper and lower condensing rings are located inside this groove, surrounding the demolding pin. Before demolding, the demolding pin is cooled. Utilizing the principle of thermal expansion and contraction, a small gap is created between the formed magnetic core and the ejector pin, reducing demolding resistance. The cooling device can be air-cooled or water-cooled, and the cooling temperature is adjustable. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the frame structure of the upper mold disassembly device of this utility model;
[0021] Figure 3 This is a schematic diagram of the bottom structure of the support plate of this utility model;
[0022] Figure 4 This is a schematic diagram of the bottom structure of the frame of the device after the upper mold is disassembled according to this utility model;
[0023] Figure 5 This is a schematic diagram of the bottom structure of the upper condensing ring and the lower condensing ring of this utility model;
[0024] The markings in the diagram are as follows: 1. Device frame; 2. Guide rod; 3. Motor; 4. Upper mold; 5. Molding block; 6. Support rod; 7. Hydraulic device; 8. Molding groove; 9. Demolding hole; 10. Telescopic rod; 11. Support plate; 12. Demolding pin; 13. Fixing hole; 14. Fixing rod; 15. Fixing ring; 16. Collar; 17. Insert rod; 18. Inner groove; 19. Upper condensation ring; 20. Bottom ring; 21. Lower condensation ring; 22. Extension block; 23. Reinforcing ring; 24. Support frame. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-5 This utility model provides a technical solution: a powder forming device suitable for the efficient production of iron-silicon-aluminum soft magnetic cores, comprising,
[0027] The molding component includes a device frame 1;
[0028] The demolding component includes a support rod 6, a hydraulic device 7, a forming groove 8, a demolding hole 9, a telescopic rod 10, and demolding pins 12. Multiple hydraulic devices 7 are connected to the inner surface of the device frame 1. The support rod 6 is connected to the middle of the top of the hydraulic device 7. The telescopic rod 10 is connected to the top of the support rod 6. The demolding pins 12 are distributed on the upper surface of the telescopic rod 10. Multiple demolding holes 9 are opened on the inner surface of the forming groove 8. The demolding pins 12 are located inside the demolding holes 9.
[0029] Multiple sets of demolding pins 12 are installed at the bottom of the device frame 1, and multiple demolding holes 9 are opened inside the forming groove 8. The demolding pins 12 are located inside the demolding holes 9 to ensure uniform force during demolding. Driven by the hydraulic device 7, the telescopic rod 10 extends inside the support rod 6, so that the formed iron-silicon-aluminum soft magnetic core can be ejected. Different demolding strokes and demolding forces can be achieved, improving production efficiency and product quality.
[0030] The demolding component also includes a support plate 11 and a collar 16. The support plate 11 is connected to the bottom of the demolding pin 12, and the collar 16 is connected to the middle of the bottom end of the support plate 11 and sleeved on the top of the telescopic rod 10. The collar 16 is sleeved on the top of the telescopic rod 10, so that the support plate 11 is installed on the top of the telescopic rod 10.
[0031] The demolding component also includes a fixing hole 13, a fixing rod 14, and a fixing ring 15. The telescopic rod 10 and the collar 16 are both provided with fixing holes 13. The fixing rod 14 is inserted into the fixing hole 13 and connected to the inside. The fixing ring 15 is connected to the outside of the fixing rod 14. The fixing rod 14 is inserted into the fixing hole 13 to fix the collar 16 and the telescopic rod 10.
[0032] The molding component also includes a guide rod 2, a motor 3, an upper mold 4, and a molding block 5. The guide rod 2 is connected to the top of the device frame 1, the upper mold 4 is connected to the outer surface of the guide rod 2, the molding block 5 is connected to the middle of the bottom end of the upper mold 4, and the motor 3 is connected to the middle of the top end of the upper mold 4.
[0033] It also includes a cooling component, which includes a plug 17, an inner groove 18, an upper condensing ring 19, a bottom ring 20, a lower condensing ring 21, an extension block 22, a reinforcing ring 23, and a support frame 24. The top of the inner surface of the device frame 1 is provided with an inner groove 18. The upper condensing ring 19 and the lower condensing ring 21 are distributed inside the inner groove 18. The bottom ring 20 is connected to the bottom of the lower condensing ring 21. The extension block 22 is connected to the outer surface of the bottom ring 20. The support frame 24 is connected between the upper condensing ring 19 and the lower condensing ring 21.
[0034] The upper condensing ring 19 and the lower condensing ring 21 are located inside the inner groove 18, surrounding the outside of the ejector pin 12. Before demolding, the ejector pin is cooled. Utilizing the principle of thermal expansion and contraction, a small gap is created between the formed magnetic core and the ejector pin, reducing demolding resistance. The cooling device can be air-cooled or water-cooled, and the cooling temperature is adjustable.
[0035] A rod 17 is connected to the top of the inner surface of the device frame 1. The rod 17 is inserted into the inside of the extension block 22. The reinforcing ring 23 is connected to the outside of the rod 17. After the rod 17 is inserted into the inside of the extension block 22, the upper condensing ring 19 and the lower condensing ring 21 are installed.
[0036] The working principle of this powder forming device for the efficient production of iron-silicon-aluminum soft magnetic cores is as follows: First, multiple sets of demolding pins 12 are installed at the bottom of the frame 1. Multiple demolding holes 9 are opened inside the forming groove 8, with the demolding pins 12 located inside the holes 9 to ensure uniform force during demolding. Driven by a hydraulic device 7, the telescopic rod 10 extends inside the support rod 6, thus ejecting the formed iron-silicon-aluminum soft magnetic core. Different demolding strokes and demolding forces can be achieved, improving production efficiency and product quality. Upper condensing rings 19 and lower condensing rings 21 are distributed inside the inner groove 18, surrounding the demolding pins 12. Before demolding, the ejector pins are cooled. Utilizing the principle of thermal expansion and contraction, a small gap is created between the formed magnetic core and the ejector pin, reducing demolding resistance. The cooling device can use air cooling or water cooling, and the cooling temperature is adjustable.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0038] 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 powder forming apparatus suitable for the efficient production of iron-silicon-aluminum soft magnetic cores, characterized in that: include, A molding component, the molding component including a device frame (1); The demolding component includes a support rod (6), a hydraulic device (7), a molding groove (8), a demolding hole (9), a telescopic rod (10), and a demolding pin (12). The inner surface of the device frame (1) is connected to multiple hydraulic devices (7). The support rod (6) is connected to the middle of the top of the hydraulic device (7). The telescopic rod (10) is connected to the top of the support rod (6). The demolding pin (12) is distributed on the upper surface of the telescopic rod (10). Multiple demolding holes (9) are opened on the inner surface of the molding groove (8). The demolding pin (12) is located inside the demolding hole (9).
2. The powder forming device for high-efficiency production of iron-silicon-aluminum soft magnetic cores according to claim 1, characterized in that: The demolding component also includes a support plate (11) and a collar (16), wherein the support plate (11) is connected to the bottom of the demolding pin (12), and the collar (16) is connected to the middle of the bottom end of the support plate (11) and sleeved to the top of the telescopic rod (10).
3. The powder forming device for high-efficiency production of iron-silicon-aluminum soft magnetic cores according to claim 1, characterized in that: The demolding component also includes a fixing hole (13), a fixing rod (14), and a fixing ring (15). The telescopic rod (10) and the collar (16) are both provided with fixing holes (13). The fixing rod (14) is inserted into the fixing hole (13) and connected to the inside. The fixing ring (15) is connected to the outside of the fixing rod (14).
4. The powder forming device for high-efficiency production of iron-silicon-aluminum soft magnetic cores according to claim 1, characterized in that: The molding component also includes a guide rod (2), a motor (3), an upper mold (4), and a molding block (5). The guide rod (2) is connected to the top of the device frame (1), the upper mold (4) is connected to the outer surface of the guide rod (2), the molding block (5) is connected to the middle of the bottom end of the upper mold (4), and the motor (3) is connected to the middle of the top end of the upper mold (4).
5. A powder forming device suitable for the efficient production of iron-silicon-aluminum soft magnetic cores according to claim 1, characterized in that: It also includes a cooling component, which includes a plug (17), an inner groove (18), an upper condensing ring (19), a bottom ring (20), a lower condensing ring (21), an extension block (22), a reinforcing ring (23), and a support frame (24). The top of the inner surface of the device frame (1) is provided with an inner groove (18). The upper condensing ring (19) and the lower condensing ring (21) are distributed inside the inner groove (18). The bottom ring (20) is connected to the bottom of the lower condensing ring (21). The extension block (22) is connected to the outer surface of the bottom ring (20). The support frame (24) is connected between the upper condensing ring (19) and the lower condensing ring (21).
6. A powder forming apparatus for high-efficiency production of iron-silicon-aluminum soft magnetic cores according to claim 5, characterized in that: A plug rod (17) is connected to the top of the inner surface of the device frame (1). The plug rod (17) is inserted into the inside of the extension block (22), and the reinforcing ring (23) is connected to the outside of the plug rod (17).