Intelligent heat treatment forming die for manganese-zinc ferrite core
The intelligent temperature control and automatic demolding system solves the problems of uneven heating and adhesion during the magnetic core forming process, achieving uniform heating, reduced losses and efficient demolding, thus improving the performance and processing efficiency of the magnetic core.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TIANMING MAGNETIC IND CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional magnetic core forming molds result in uneven heating of the magnetic core and inconsistent grain structure, affecting magnetic permeability and loss characteristics. Furthermore, the core is prone to sticking and damaging the surface precision of the product during demolding, leading to low processing efficiency.
An intelligent temperature control system that links an electromagnetic heating ring with a temperature sensor, combined with an automatic release agent spraying and mechanical unloading mechanism, ensures uniform heating and avoids sticking. The integrated motor-driven unloading mechanism enables non-destructive demolding.
Uniform heating of the magnetic core is achieved, which improves magnetic permeability and reduces losses, ensures surface smoothness, and improves processing efficiency and extends mold life through automated demolding.
Smart Images
Figure CN224334645U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic core forming mold technology, specifically a manganese zinc ferrite magnetic core intelligent heat treatment forming mold. Background Technology
[0002] Manganese-zinc ferrite is a type of soft magnetic ferrite. It has a spinel-type structure and is made from oxides and salts of iron, manganese, and zinc using ceramic processing techniques. It has high initial permeability and is generally used in the frequency range of 1 kHz to 10 MHz. It can be used to make magnetic cores, magnetic heads, and antenna rods for inductors, transformers, and filters. Manganese-zinc ferrite cores are core components of electronic devices (such as inductors and transformers), and their performance directly affects the efficiency and stability of electronic equipment.
[0003] Traditional magnetic core molding relies on external heating for the molding mold, which can easily lead to uneven heating of the magnetic core and inconsistent grain structure, affecting magnetic permeability and loss characteristics. After high-temperature molding, the magnetic core is prone to sticking to the mold, and forced demolding may damage the surface precision of the product. At the same time, the spraying of the release agent is mostly done manually, which affects the efficiency of processing and molding. To address these issues, we propose an intelligent heat treatment molding mold for manganese-zinc ferrite magnetic cores. Utility Model Content
[0004] The technical problem this invention aims to solve is to overcome existing defects and provide an intelligent heat treatment molding die for manganese-zinc ferrite cores. This die achieves precise temperature control through intelligent linkage between an electromagnetic heating ring and a temperature sensor, ensuring uniform heating of the manganese-zinc ferrite core, improving magnetic permeability, and reducing losses. It integrates an automatic release agent spraying system and a motor-driven mechanical unloading mechanism, effectively preventing product adhesion and achieving damage-free demolding. Simultaneously, the electromagnetic heating technology is energy-efficient and extends the die's lifespan, effectively solving the problems in the background technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a smart heat treatment molding die for manganese-zinc ferrite cores, comprising a bottom die and a temperature control unit;
[0006] Bottom mold: The top surface of the bottom mold corresponds to and fits with the bottom surface of the top mold, and the bottom mold is provided with a stripping unit inside;
[0007] Temperature control unit: includes an electromagnetic heater, a fixing plate, an electromagnetic heating ring, a fixing groove, and a heating ring groove. The heating ring groove is opened inside the bottom mold, and the fixing groove is opened on the top surface of the bottom mold. The heating ring groove and the fixing groove are connected. The electromagnetic heating ring is fixed on the bottom surface of the fixing plate and placed inside the heating ring groove. The fixing plate and the fixing groove are engaged. The input end of the electromagnetic heating ring is electrically connected to the output end of the electromagnetic heater.
[0008] The system also includes a fixing column and a controller. The fixing column is fixed inside the bottom mold, and the controller is located on the front side of the bottom mold. The input end of the electromagnetic heater is electrically connected to the output end of the controller, and the input end of the controller is electrically connected to the output end of an external power source.
[0009] The fixing plate is inserted into the fixing groove to place the electromagnetic heating ring inside the heating ring groove. The electromagnetic heater is then activated to achieve rapid and uniform heating inside the mold, avoiding local overheating or underheating, ensuring uniform core grain structure, improving magnetic permeability and reducing losses.
[0010] Furthermore, the temperature control unit also includes a liquid level sensor, a mold release agent tank, a liquid pump, spray nozzles, and a spray ring pipe. The mold release agent tank is fixed to the left side of the bottom mold. A liquid pump is installed on the bottom surface of the mold release agent tank. A spray ring pipe is installed on the outlet pipe of the liquid pump. The spray ring pipe is located inside the fixed column. The spray nozzles are evenly distributed on the surface of the fixed column. The liquid level sensor is fixed to the top surface of the mold release agent tank. The output terminal of the liquid level sensor is electrically connected to the input terminal of the controller. The input terminal of the liquid pump is electrically connected to the output terminal of the controller. When the liquid pump is started, the mold release agent inside the mold release agent tank is sprayed into the interior of the mold through the spray ring pipe and spray nozzles to prevent the magnetic core from sticking, protect the surface finish, and also cool the mold.
[0011] Furthermore, the temperature control unit also includes locking slots and locking rods. There are four locking slots, which are respectively opened at the four corners of the surface of the fixing plate. There are four locking rods, which are respectively rotatably connected to the four corners inside the fixing slots. The rotating locking rods are inserted into the locking slots to realize quick disassembly and assembly of the fixing plate, thereby facilitating subsequent maintenance and replacement.
[0012] Furthermore, the stripping unit includes a stripping frame, a sliding rod, a motor, a screw, and a fixed plate. The motor is fixed to the bottom end inside the bottom mold, and the output shaft of the motor is connected to the top end of the screw. The fixed plate is slidably installed inside the bottom mold, and the screw hole on the surface of the fixed plate is threadedly connected to the screw. The top end of the sliding rod is evenly fixed around the shaft, passing through the sliding hole inside the bottom mold and mounting the stripping frame. The input end of the motor is electrically connected to the output end of the controller. Starting the motor drives the screw to rotate, thereby driving the fixed plate to rise and fall. This multi-point stripping frame can prevent damage caused by uneven force during the stripping process.
[0013] Furthermore, the stripping unit also includes a fixing rod and a cylindrical shell. The bottom end of the fixing rod is connected to the middle of the top surface of the fixing plate, the top end of the fixing rod is connected to the inside of the cylindrical shell, the cylindrical shell is slidably connected to the outside of the fixing column, and the fixing rod is slidably connected to the center of the bottom mold and the through hole in the middle of the top surface of the fixing column. The cylindrical shell at the top of the fixing rod can prevent the raw material from entering the inside of the fixing column during the molding process of the manganese zinc ferrite core.
[0014] Furthermore, it also includes a temperature sensor, which is installed on the top of the front side of the bottom mold. The output of the temperature sensor is electrically connected to the input of the controller. The temperature sensor can detect the temperature of the mold in real time, thereby performing automatic temperature control and adjustment.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This intelligent heat treatment forming mold for manganese-zinc ferrite magnetic core has the following advantages:
[0016] 1. The electromagnetic heating ring is placed inside the heating ring groove by inserting the fixing plate into the fixing groove. The electromagnetic heater is then activated to achieve rapid and uniform heating inside the mold, avoiding local overheating or underheating, ensuring uniform core grain structure, improving magnetic permeability and reducing losses.
[0017] 2. By starting the liquid pump, the release agent inside the release agent tank is sprayed into the mold through the spray ring pipe and spray hole to prevent the magnetic core from sticking, protect the surface smoothness, and also cool the mold. The rotating locking rod is inserted into the locking groove to realize the quick disassembly and assembly of the fixing plate, which facilitates subsequent maintenance and replacement.
[0018] 3. The screw is rotated by starting the motor, which in turn drives the fixed plate to rise and fall. This multi-point setting of the unloading rack can prevent damage caused by uneven force during the unloading process. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the material unloading unit structure of this utility model;
[0021] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0022] In the diagram: 1 Bottom mold, 2 Temperature control unit, 21 Electromagnetic heater, 22 Fixing plate, 23 Electromagnetic heating ring, 24 Fixing groove, 25 Heating ring groove, 26 Liquid level sensor, 27 Release agent tank, 28 Liquid pump, 29 Spray hole, 210 Spray ring pipe, 211 Locking groove, 212 Locking rod, 3 Unloading unit, 31 Unloading rack, 32 Slide rod, 33 Motor, 34 Screw, 35 Fixing plate, 36 Fixing rod, 37 Cylindrical shell, 4 Top mold, 5 Fixing column, 6 Temperature sensor, 7 Controller. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-3 This embodiment provides a technical solution: a manganese-zinc ferrite core intelligent heat treatment forming mold, including a bottom mold 1 and a temperature control unit 2;
[0025] Bottom mold 1: Its top surface corresponds to and fits with the bottom surface of top mold 4. Bottom mold 1 has an internal stripping unit 3, which includes a stripping frame 31, a sliding rod 32, a motor 33, a screw 34, and a fixing plate 35. The motor 33 is fixed to the bottom end inside the bottom mold 1. The output shaft of the motor 33 is connected to the top end of the screw 34. The fixing plate 35 is slidably installed inside the bottom mold 1. The screw holes on the surface of the fixing plate 35 are threadedly connected to the screw 34. The top surface of the fixing plate 35 is evenly fixed with the sliding rod 32 centered on the shaft. The top end of the sliding rod 32 passes through the sliding hole inside the bottom mold 1 and is fitted with the stripping frame 31. The input end of the motor 33 is electrically connected to the output end of the controller 7. The motor 33 drives the screw 34 to rotate, which in turn drives the fixed plate 35 to rise and fall. The multi-point stripping rack 31 can prevent damage caused by uneven force during stripping. The stripping unit 3 also includes a fixed rod 36 and a cylindrical shell 37. The bottom end of the fixed rod 36 is connected to the middle of the top surface of the fixed plate 35, the top end of the fixed rod 36 is connected to the inside of the cylindrical shell 37, the cylindrical shell 37 is slidably connected to the outside of the fixed column 5, and the fixed rod 36 is slidably connected to the center of the bottom mold 1 and the through hole in the middle of the top surface of the fixed column 5. The cylindrical shell 37 at the top of the fixed rod 36 can prevent the raw material from entering the inside of the fixed column 5 during the molding process of the manganese zinc ferrite core.
[0026] Temperature control unit 2 includes an electromagnetic heater 21, a fixing plate 22, an electromagnetic heating ring 23, a fixing groove 24, and a heating ring groove 25. The heating ring groove 25 is located inside the bottom mold 1, and the fixing groove 24 is located on the top surface of the bottom mold 1. The heating ring groove 25 is connected to the fixing groove 24. The electromagnetic heating ring 23 is fixed to the bottom surface of the fixing plate 22 and placed inside the heating ring groove 25. The fixing plate 22 and the fixing groove 24 are engaged. The input end of the electromagnetic heating ring 23 is electrically connected to the output end of the electromagnetic heater 21. Temperature control unit 2 also includes a liquid level sensor 26, a mold release agent tank 27, a liquid pump 28, a spray nozzle 29, and a spray ring pipe 210. The mold release agent tank 27 is fixed to the left side of the bottom mold 1. The liquid pump 28 is installed on the bottom surface of the mold release agent tank 27. The spray ring pipe 210 is installed on the outlet pipe of the liquid pump 28 and is located on the fixing column. Inside the fixed column 5, spray holes 29 are evenly distributed on the surface of the fixed column 5. The liquid level sensor 26 is fixed on the top surface of the mold release agent tank 27. The output end of the liquid level sensor 26 is electrically connected to the input end of the controller 7. The input end of the liquid pump 28 is electrically connected to the output end of the controller 7. When the liquid pump 28 is started, the mold release agent inside the mold release agent tank 27 is sprayed into the mold through the spray ring pipe 210 and spray holes 29 to prevent the magnetic core from sticking and protect the surface smoothness. At the same time, it can also cool the mold. The temperature control unit 2 also includes locking grooves 211 and locking rods 212. There are four locking grooves 211, which are respectively opened at the four corners of the surface of the fixed plate 22. There are four locking rods 212, which are respectively rotatably connected to the four corners inside the fixed groove 24. The rotating locking rods 212 are inserted into the locking groove 211 to realize the quick disassembly and assembly of the fixed plate 22, thereby facilitating subsequent maintenance and replacement.
[0027] The system also includes a fixing post 5 and a controller 7. The fixing post 5 is fixed inside the bottom mold 1, and the controller 7 is located on the front side of the bottom mold 1. The input end of the electromagnetic heater 21 is electrically connected to the output end of the controller 7, and the input end of the controller 7 is electrically connected to the output end of an external power supply. The fixing plate 22 is inserted into the fixing groove 24 to place the electromagnetic heating ring 23 inside the heating ring groove 25. The electromagnetic heater 21 is activated to achieve rapid and uniform heating inside the mold, avoiding local overheating or underheating, ensuring uniform core grain structure, improving permeability and reducing losses. The system also includes a temperature sensor 6, which is installed at the top of the front side of the bottom mold 1. The output end of the temperature sensor 6 is electrically connected to the input end of the controller 7. The temperature sensor 6 can detect the temperature of the mold in real time, thereby performing automatic temperature control and adjustment.
[0028] The working principle of the intelligent heat treatment molding die for manganese-zinc ferrite core provided by this utility model is as follows: First, the fixing plate 22 is inserted into the fixing groove 24 to place the electromagnetic heating ring 23 inside the heating ring groove 25. Then, the locking rod 212 is rotated and inserted into the locking groove 211 to lock the fixing plate 22. The electromagnetic heater 21 is then started to achieve rapid and uniform heating inside the mold, avoiding local overheating or underheating, ensuring uniform core grain structure, improving permeability and reducing losses. After the manganese-zinc ferrite core is formed, the motor 33 is started to drive the screw 3 4. Rotation drives the fixed plate 35 to rise and fall. The multi-point stripping rack 31 can prevent damage caused by uneven force during stripping. The cylindrical shell 37 at the top of the fixed rod 36 rises together to expose the spray hole 29. The liquid pump 28 is started to spray the mold release agent inside the mold release agent tank 27 into the mold through the spray ring pipe 210 and the spray hole 29, which avoids the magnetic core from sticking and protects the surface finish. At the same time, it can also cool the mold. The temperature sensor 6 can detect the temperature of the mold in real time and thus automatically control the temperature.
[0029] It is worth noting that the controller 7 disclosed in the above embodiments is model KV-8000, while the electromagnetic heater 21 can be freely configured according to the actual application scenario. It is recommended to use model IH-20KW electromagnetic heater, model BT100-1F liquid pump 28, and model E52-CA1AY temperature sensor 6. The controller 7 controls the operation of electromagnetic heater 21, liquid level sensor 26, liquid pump 28, motor 33, and temperature sensor 6 using methods commonly used in the prior art.
[0030] 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 smart heat treatment forming mold for manganese-zinc ferrite magnetic cores, characterized in that: Includes bottom mold (1) and temperature control unit (2); Bottom mold (1): The top surface of the bottom mold (4) corresponds to and fits with the bottom surface of the top mold (4). The bottom mold (1) is provided with a stripping unit (3) inside. Temperature control unit (2): includes an electromagnetic heater (21), a fixing plate (22), an electromagnetic heating ring (23), a fixing groove (24), and a heating ring groove (25). The heating ring groove (25) is opened inside the bottom mold (1), and the fixing groove (24) is opened on the top surface of the bottom mold (1). The heating ring groove (25) is connected to the fixing groove (24). The bottom surface of the fixing plate (22) is fixed with an electromagnetic heating ring (23). The electromagnetic heating ring (23) is placed inside the heating ring groove (25). The fixing plate (22) and the fixing groove (24) are engaged. The input end of the electromagnetic heating ring (23) is electrically connected to the output end of the electromagnetic heater (21). The system also includes a fixed column (5) and a controller (7). The fixed column (5) is fixed inside the bottom mold (1), and the controller (7) is located on the front side of the bottom mold (1). The input end of the electromagnetic heater (21) is electrically connected to the output end of the controller (7), and the input end of the controller (7) is electrically connected to the output end of an external power source.
2. The intelligent heat treatment forming mold for manganese-zinc ferrite cores according to claim 1, characterized in that: The temperature control unit (2) also includes a liquid level sensor (26), a mold release agent tank (27), a liquid pump (28), a spray nozzle (29), and a spray ring pipe (210). The mold release agent tank (27) is fixed on the left side of the bottom mold (1). The bottom surface of the mold release agent tank (27) is equipped with a liquid pump (28). The outlet pipe of the liquid pump (28) is equipped with a spray ring pipe (210). The spray ring pipe (210) is located inside the fixed column (5). The spray nozzle (29) is evenly opened on the surface of the fixed column (5). The liquid level sensor (26) is fixed on the top surface of the mold release agent tank (27). The output end of the liquid level sensor (26) is electrically connected to the input end of the controller (7). The input end of the liquid pump (28) is electrically connected to the output end of the controller (7).
3. The intelligent heat treatment forming mold for manganese-zinc ferrite core according to claim 2, characterized in that: The temperature control unit (2) also includes a locking groove (211) and a locking rod (212). There are four locking grooves (211) and they are respectively opened at the four corners of the surface of the fixing plate (22). There are four locking rods (212) and they are respectively rotatably connected to the four corners inside the fixing groove (24).
4. The intelligent heat treatment forming mold for manganese-zinc ferrite cores according to claim 1, characterized in that: The unloading unit (3) includes an unloading frame (31), a slide bar (32), a motor (33), a screw (34), and a fixed plate (35). The motor (33) is fixed at the bottom end inside the bottom mold (1). The output shaft of the motor (33) is connected to the top end of the screw (34). The fixed plate (35) is slidably installed inside the bottom mold (1). The screw hole on the surface of the fixed plate (35) is threadedly connected to the screw (34). The top surface of the fixed plate (35) is evenly fixed with the axis as the center. The top end of the slide bar (32) passes through the sliding hole inside the bottom mold (1) and is equipped with the unloading frame (31). The input end of the motor (33) is electrically connected to the output end of the controller (7).
5. The intelligent heat treatment forming mold for manganese-zinc ferrite core according to claim 4, characterized in that: The unloading unit (3) also includes a fixing rod (36) and a cylindrical shell (37). The bottom end of the fixing rod (36) is connected to the middle of the top surface of the fixing plate (35), the top end of the fixing rod (36) is connected to the inside of the cylindrical shell (37), the cylindrical shell (37) is slidably connected to the outside of the fixing column (5), and the fixing rod (36) is slidably connected to the center inside the bottom mold (1) and the through hole in the middle of the top surface of the fixing column (5).
6. The intelligent heat treatment forming mold for manganese-zinc ferrite core according to claim 1, characterized in that: It also includes a temperature sensor (6), which is installed on the top of the front side of the bottom mold (1), and the output of the temperature sensor (6) is electrically connected to the input of the controller (7).