Manganese zinc ferrite magnetic core forming die
By designing a manganese-zinc ferrite core molding die that includes a support, sealing components, water injection components, and cooling components, the problem of low heat dissipation efficiency in existing molds was solved, enabling rapid molding and avoiding thermal stress, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU HAOBO ELECTRONICS TECH CO LTD
- Filing Date
- 2025-04-11
- Publication Date
- 2026-04-17
AI Technical Summary
Existing manganese-zinc ferrite core molding dies lack effective auxiliary heat dissipation structures, resulting in low heat dissipation efficiency, affecting production efficiency and product quality, and may also lead to internal thermal stress in the core.
A manganese-zinc ferrite core forming mold was designed, which includes a support, sealing component, water injection component, cooling component, and refrigeration component. The mold achieves rapid heat dissipation and cooling through components such as an electric telescopic rod, PLC controller, and semiconductor refrigeration chip, thus avoiding the generation of thermal stress inside the core.
Rapid prototyping of manganese-zinc ferrite cores has been achieved, improving production efficiency, avoiding the generation of internal thermal stress in the cores, and ensuring the stability of electromagnetic performance.
Smart Images
Figure CN224138017U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of molding die technology, specifically a manganese zinc ferrite core molding die. Background Technology
[0002] Manganese-zinc ferrite is a typical soft magnetic ferrite material with a spinel-type crystal structure. This material is mainly prepared from oxides of iron, manganese, and zinc, and their salts, through ceramic processing. Its most notable characteristic is its high initial permeability. Manganese-zinc ferrite exhibits excellent electromagnetic properties in the frequency range of 1 kHz to 10 MHz, and is therefore widely used in the manufacture of magnetic cores for electronic components such as inductors, transformers, and filters. It is also an important material for magnetic heads and antenna rods.
[0003] In actual production, manganese-zinc ferrite cores are typically manufactured using a mold forming process. However, existing molds have a significant technical flaw: a lack of effective auxiliary heat dissipation structures. This deficiency leads to low heat dissipation efficiency during core forming, directly impacting production efficiency and product quality. Specifically, since the core material generates a large amount of heat during the forming process, failure to dissipate heat in a timely manner will not only prolong the production cycle but may also cause thermal stress within the core, affecting the stability of its electromagnetic properties. Therefore, we propose a manganese-zinc ferrite core forming mold. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a manganese-zinc ferrite core forming mold that can quickly dissipate heat, improve the forming speed of the core material, and at the same time avoid the generation of thermal stress inside the core, thus effectively solving the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a manganese-zinc ferrite core forming mold, comprising a support and a sealing assembly;
[0006] Support: A bottom ring is fixed at the upper end, and a forming tube is fixed on the circumferential surface of the bottom ring. A water injection component is installed at the lower end of the support. A cooling component is installed on the side of the water injection component. A reflux component is installed on the upper side of the water injection component. A cooling component is installed on the circumferential surface of the forming tube. The cooling component is connected to the water injection component.
[0007] Sealing assembly: includes a sealing ring, a limiting barrel, a connecting plate, an electric telescopic rod, and a moving ring. A sealing ring is provided at the upper end of the forming tube. A limiting barrel is fixed inside the sealing ring. The lower end of the limiting barrel is engaged inside the bottom ring. A moving ring is threaded to the lower end of the circumferential surface of the limiting barrel and is placed on the upper end of the bottom ring. Two corresponding electric telescopic rods are installed on the upper side of the bracket. A connecting plate is fixed to the telescopic arm of the electric telescopic rod. Both connecting plates are fixed to the circumferential surface of the sealing ring. The cooling assembly is connected to the limiting barrel. The input end of the electric telescopic rod is electrically connected to the output end of an external PLC controller. The sealing assembly seals the forming tube.
[0008] Furthermore, the cooling assembly includes a water inlet ring, a connecting ring, a first water inlet pipe, a second water inlet pipe, and a connecting barrel. An opening is provided on the upper side of the bracket, and a connecting ring is fixed inside the opening. A water inlet ring is fixed on the circumferential surface of the forming tube. The first water inlet pipe is fixed inside the water inlet provided at the lower end of the water inlet ring. A second water inlet pipe is fixed in the middle of the connecting ring. Both the second and first water inlet pipes are connected to the connecting barrel, and both the second and first water inlet pipes communicate with the inner cavity of the connecting barrel. By setting up the cooling assembly, the manganese-zinc ferrite core inside the forming tube is rapidly cooled.
[0009] Furthermore, the reflux assembly includes a conical reflux pipe, a guide pipe, a reflux hole, a first reflux pipe, and a second reflux pipe. The upper end of the limiting barrel is fixed with a conical reflux pipe, and the lower end of the conical reflux pipe is fixed with a guide pipe. The upper end of the connecting ring has a reflux hole, and the lower end of the guide pipe is engaged inside the reflux hole. The lower end of the reflux hole is fixed with a first reflux pipe, and the drain outlet at the upper end of the circumferential surface of the water inlet ring is fixed with a second reflux pipe. The reflux assembly facilitates the reflux of cooling water.
[0010] Furthermore, the water injection assembly includes a water tank, a water pump, and a water outlet hose. The water pump is installed inside the water tank, and the water outlet hose is fixed inside the water outlet of the water pump. The end of the water outlet hose away from the water pump is fixed inside the connecting tank. Two corresponding return holes are opened on the upper side of the water tank. The lower ends of the first return pipe and the second return pipe are respectively fixed inside the two return holes. The input end of the water pump is electrically connected to the output end of an external PLC controller. Water is injected into the interior of the connecting tank by setting up the water injection assembly.
[0011] Furthermore, the cooling assembly includes a temperature sensor, a thermoelectric cooler, a mounting frame, and a cooling fan. A mounting hole is provided on the right side of the water tank, and the temperature sensor is installed inside the mounting hole. A mounting groove is provided on the side of the water tank, and the thermoelectric cooler is installed inside the mounting groove. The cooling end of the thermoelectric cooler is located inside the mounting groove, and the heat dissipation end of the thermoelectric cooler is located outside the mounting groove. A mounting frame is fixed to the right side of the water tank, and evenly distributed cooling fans are installed inside the mounting frame. The input ends of the thermoelectric cooler and the cooling fans are electrically connected to the output end of an external PLC controller. The temperature sensor is bidirectionally electrically connected to the external PLC controller. The cooling assembly cools the water inside the water tank.
[0012] Furthermore, the upper end of the sealing ring is provided with an injection hole, and an injection tube is fixed inside the injection hole. A solenoid valve is installed on the circumferential surface of the injection tube. The input end of the solenoid valve is electrically connected to the output end of an external PLC controller. The material for producing manganese-zinc ferrite cores enters the interior of the molding tube through the injection tube.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This manganese-zinc ferrite core forming mold has the following advantages:
[0014] 1. By setting a sealing component, the two electric telescopic rods are controlled to retract during use, so that the sealing ring is downward and fits against the upper end of the forming tube. After fitting, the limiting barrel will be inserted into the bottom ring. At this time, the solenoid valve is opened, and the molten metal solution is injected into the forming tube through the injection pipe. Then, wait for it to form. After forming, start the two electric telescopic rods to make the sealing ring and moving ring move upward and quickly take out the formed manganese zinc ferrite core.
[0015] 2. By setting up a water injection component, a water pump can be started during the waiting period for the manganese-zinc ferrite core to be formed. The water cooled by the cooling component inside the water tank is injected into the inside of the connecting bucket through the water outlet hose. Part of the water entering the connecting bucket is injected into the inside of the water inlet ring through the first water injection pipe, and the other part of the water enters the inside of the limiting bucket through the second water injection pipe. In this way, the manganese-zinc ferrite core inside the forming tube can be cooled and shaped quickly, thus avoiding the generation of thermal stress inside the core. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the front structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the sealing assembly structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the cooling component structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the refrigeration component structure of this utility model.
[0020] In the diagram: 1. Bracket, 2. Bottom ring, 3. Molding tube, 4. Sealing assembly, 41. Sealing ring, 42. Limiting barrel, 43. Connecting plate, 44. Electric telescopic rod, 45. Moving ring, 5. Cooling assembly, 51. Water inlet ring, 52. Connecting ring, 53. First water inlet pipe, 54. Second water inlet pipe, 55. Connecting barrel, 6. Return assembly, 61. Conical return pipe, 62. Guide pipe, 63. Return hole, 64. First return pipe, 65. Second return pipe, 7. Water inlet assembly, 71. Water tank, 72. Water pump, 73. Water outlet hose, 8. Cooling assembly, 81. Temperature sensor, 82. Semiconductor cooling chip, 83. Mounting frame, 84. Cooling fan, 9. Injection pipe, 10. Solenoid valve. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 This embodiment provides a technical solution: a manganese zinc ferrite core forming mold, including a bracket 1 and a sealing component 4;
[0023] Support 1: A bottom ring 2 is fixed at the upper end, and a forming tube 3 is fixed on the circumferential surface of the bottom ring 2. A water injection component 7 is installed at the lower end of the support 1. A cooling component 8 is installed on the side of the water injection component 7. A return component 6 is installed on the upper side of the water injection component 7. A cooling component 5 is installed on the circumferential surface of the forming tube 3. The cooling component 5 is connected to the water injection component 7. The cooling component 5 includes a water inlet ring 51, a connecting ring 52, a first water injection pipe 53, a second water injection pipe 54, and a connecting tank 55. An opening is provided on the upper side of the support 1, and a connecting ring 52 is fixed inside the opening. A water inlet ring 51 is fixed on the circumferential surface of the forming tube 3. The first water injection pipe 53 is fixed inside the water inlet provided at the lower end of the water inlet ring 51. The second water injection pipe 54 is fixed in the middle of the connecting ring 52. The second water injection pipe 54 and the first water injection pipe 53 are both connected to the connecting bucket 55, and both the second water injection pipe 54 and the first water injection pipe 53 communicate with the inner cavity of the connecting bucket 55. The return assembly 6 includes a conical return pipe 61, a guide pipe 62, a return hole 63, a first return pipe 64, and a second return pipe 65. The upper end of the limiting bucket 42 is fixed with the conical return pipe 61, and the lower end of the conical return pipe 61 is fixed with the guide pipe 62. The upper end of the connecting ring 52 has a return hole 63, and the lower end of the guide pipe 62 is engaged inside the return hole 63. The lower end of the return hole 63 is fixed with the first return pipe 64. The drain outlet at the upper end of the circumferential surface of the water inlet ring 51 is fixed with the second return pipe 65. The water injection assembly 7 includes a water tank 71 and a water pump. 72 and outlet hose 73, water pump 72 is installed inside water tank 71, outlet hose 73 is fixed inside the outlet of water pump 72, and the end of outlet hose 73 away from water pump 72 is fixed inside connecting bucket 55. Two corresponding return holes are opened on the upper side of water tank 71, and the lower ends of the first return pipe 64 and the second return pipe 65 are respectively fixed inside the two return holes. The input end of water pump 72 is electrically connected to the output end of external PLC controller. Cooling assembly 8 includes temperature sensor 81, semiconductor cooling chip 82, mounting frame 83 and cooling fan 84. Mounting hole is opened on the right side of water tank 71, and temperature sensor 81 is installed inside the mounting hole. Mounting groove is opened on the side of water tank 71, and semi-mounted cooling fan 84 is installed inside the mounting groove. The cooling end of the semiconductor cooling chip 82 is located inside the mounting groove, and the heat dissipation end of the semiconductor cooling chip 82 is located outside the mounting groove. A mounting frame 83 is fixed on the right side of the water tank 71. Evenly distributed cooling fans 84 are installed inside the mounting frame 83. The input ends of the semiconductor cooling chip 82 and the cooling fans 84 are electrically connected to the output end of an external PLC controller. The temperature sensor 81 is bidirectionally electrically connected to the external PLC controller. The water inside the water tank 71 is cooled by the cooling component 8. The water is injected into the connecting bucket 55 by the water injection component 7. The cooling water is returned by the return component 6. The manganese-zinc ferrite core inside the molding tube 3 is rapidly cooled by the cooling component 5.
[0024] Sealing assembly 4 includes a sealing ring 41, a limiting barrel 42, a connecting plate 43, an electric telescopic rod 44, and a moving ring 45. The upper end of the forming tube 3 is provided with a sealing ring 41. The limiting barrel 42 is fixed inside the sealing ring 41. The lower end of the limiting barrel 42 is snapped into the inside of the bottom ring 2. The lower end of the circumferential surface of the limiting barrel 42 is threadedly connected to the moving ring 45. The moving ring 45 is placed on the upper end of the bottom ring 2. Two corresponding electric telescopic rods 44 are installed on the upper side of the bracket 1. The telescopic arm of the electric telescopic rod 44 is fixed with a connecting plate 43. Both connecting plates 43 are fixed on the circumferential surface of the sealing ring 41. The cooling assembly 5 is connected to the limiting barrel 42. The input end of the electric telescopic rod 44 is electrically connected to the output end of an external PLC controller. The forming tube 3 is sealed by setting the sealing assembly 4.
[0025] Wherein: the upper end of the sealing ring 41 is provided with a material injection hole, the inside of which is fixed a material injection tube 9, and a solenoid valve 10 is installed on the circumferential surface of the material injection tube 9. The input end of the solenoid valve 10 is electrically connected to the output end of an external PLC controller. The material for producing manganese zinc ferrite cores enters the interior of the molding tube 3 through the material injection tube 9.
[0026] The working principle of the manganese-zinc ferrite core forming mold provided by this utility model is as follows: During use, the two electric telescopic rods 44 are controlled to retract, so that the sealing ring 41 is downward and fits against the upper end of the forming tube 3. After fitting, the limiting barrel 42 will be inserted into the bottom ring 2. At this time, the solenoid valve 10 is opened, and then the molten metal solution is injected into the forming tube 3 through the injection pipe 9. Then, the semiconductor cooling chip 82 is activated to cool the water in the water tank 71. After cooling, the water pump 72 is activated to inject the water in the water tank 71, which has been cooled by the cooling component 8, into the connecting barrel 55 through the water outlet hose 73. Part of the water entering the connecting barrel 55 is injected into the water inlet ring 51 through the first water injection pipe 53, and the other part... Water enters the limiting barrel 42 through the second water inlet pipe 54. Water entering the water inlet ring 51 will flow back to the water tank 71 through the second return pipe 65. Water entering the limiting barrel 42 will flow back to the water tank 71 through the first return pipe 65. This completes the water circulation. During the water circulation, the manganese-zinc ferrite core inside the forming tube 3 can be cooled and shaped quickly, thus avoiding thermal stress inside the core. After forming, the two electric telescopic rods 44 are activated to make the sealing ring 41 and the moving ring 45 move upward to quickly remove the formed manganese-zinc ferrite core. After removal, the moving ring 45 is rotated downward to easily remove the manganese-zinc ferrite core quickly.
[0027] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The electric telescopic rod 44, water pump 72, thermoelectric cooler 82, cooling fan 84, solenoid valve 10 and temperature sensor 81 can be freely configured according to the actual application scenario. The external PLC controller controls the operation of the electric telescopic rod 44, water pump 72, thermoelectric cooler 82, cooling fan 84 and solenoid valve 10 using methods commonly used in the prior art.
[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A molding die for a manganese-zinc ferrite core, characterized by: Includes a bracket (1) and a sealing assembly (4); Support (1): A bottom ring (2) is fixed at the upper end, and a forming tube (3) is fixed on the circumferential surface of the bottom ring (2). A water injection component (7) is installed at the lower end of the support (1). A cooling component (8) is installed on the side of the water injection component (7). A return component (6) is installed on the upper side of the water injection component (7). A cooling component (5) is installed on the circumferential surface of the forming tube (3). The cooling component (5) is connected to the water injection component (7). Sealing assembly (4): includes sealing ring (41), limiting barrel (42), connecting plate (43), electric telescopic rod (44) and moving ring (45). The upper end of the forming tube (3) is provided with sealing ring (41). The limiting barrel (42) is fixed inside the sealing ring (41). The lower end of the limiting barrel (42) is snapped into the inside of the bottom ring (2). The lower end of the circumferential surface of the limiting barrel (42) is threaded with moving ring (45). Moving ring (45) is placed on the upper end of the bottom ring (2). Two corresponding electric telescopic rods (44) are installed on the upper side of the bracket (1). The telescopic arm of the electric telescopic rod (44) is fixed with connecting plate (43). Both connecting plates (43) are fixed on the circumferential surface of the sealing ring (41). The cooling assembly (5) is connected to the limiting barrel (42). The input end of the electric telescopic rod (44) is electrically connected to the output end of the external PLC controller.
2. The manganese-zinc ferrite core forming mold according to claim 1, characterized in that: The cooling assembly (5) includes a water inlet ring (51), a connecting ring (52), a first water inlet pipe (53), a second water inlet pipe (54), and a connecting bucket (55). The upper side of the bracket (1) has an opening, and the connecting ring (52) is fixed inside the opening. The water inlet ring (51) is fixed on the circumferential surface of the forming tube (3). The first water inlet pipe (53) is fixed inside the water inlet provided at the lower end of the water inlet ring (51). The second water inlet pipe (54) is fixed in the middle of the connecting ring (52). The second water inlet pipe (54) and the first water inlet pipe (53) are both connected to the connecting bucket (55). The second water inlet pipe (54) and the first water inlet pipe (53) are both connected to the inner cavity of the connecting bucket (55).
3. The molding die for a Mn-Zn ferrite core according to claim 2, characterized by: The reflux assembly (6) includes a conical reflux pipe (61), a guide pipe (62), a reflux hole (63), a first reflux pipe (64), and a second reflux pipe (65). The upper end of the limiting barrel (42) is fixed with a conical reflux pipe (61), and the lower end of the conical reflux pipe (61) is fixed with a guide pipe (62). The upper end of the connecting ring (52) is provided with a reflux hole (63), and the lower end of the guide pipe (62) is engaged inside the reflux hole (63). The lower end of the reflux hole (63) is fixed with a first reflux pipe (64), and the drain outlet provided at the upper end of the circumferential surface of the water inlet ring (51) is fixed with a second reflux pipe (65).
4. The molding die for a Mn-Zn ferrite core according to claim 3, characterized by: The water injection assembly (7) includes a water tank (71), a water pump (72), and a water outlet hose (73). The water pump (72) is installed inside the water tank (71). The water outlet hose (73) is fixed inside the outlet of the water pump (72). The end of the water outlet hose (73) away from the water pump (72) is fixed inside the connecting bucket (55). Two corresponding return holes are opened on the upper side of the water tank (71). The lower ends of the first return pipe (64) and the second return pipe (65) are respectively fixed inside the two return holes. The input end of the water pump (72) is electrically connected to the output end of an external PLC controller.
5. The molding die for a Mn-Zn ferrite core according to claim 4, characterized by: The cooling assembly (8) includes a temperature sensor (81), a thermoelectric cooler (82), a mounting frame (83), and a cooling fan (84). The water tank (71) has a mounting hole on its right side, and the temperature sensor (81) is installed inside the mounting hole. The water tank (71) has a mounting groove on its side, and the thermoelectric cooler (82) is installed inside the mounting groove. The cooling end of the thermoelectric cooler (82) is located inside the mounting groove, and the heat dissipation end of the thermoelectric cooler (82) is located outside the mounting groove. The mounting frame (83) is fixed on the right side of the water tank (71), and the cooling fans (84) are evenly distributed inside the mounting frame (83). The input ends of the thermoelectric cooler (82) and the cooling fans (84) are electrically connected to the output end of an external PLC controller. The temperature sensor (81) is bidirectionally electrically connected to the external PLC controller.
6. The molding die for a Mn-Zn ferrite core according to claim 1, characterized by: The upper end of the sealing ring (41) is provided with a filling hole, and a filling tube (9) is fixed inside the filling hole. A solenoid valve (10) is installed on the circumferential surface of the filling tube (9). The input end of the solenoid valve (10) is electrically connected to the output end of an external PLC controller.