A sintering apparatus for manganese-zinc ferrite cores

Abstract

This application relates to the field of magnetic core sintering and discloses a manganese-zinc ferrite magnetic core sintering device, including a sintering box. A heater is installed inside the sintering box, and a heating wire is electrically connected inside the heater. A display panel is installed on the top of the sintering box. A support base is fixedly connected inside the sintering box, and a partition is fixedly connected to the top of the support base. Multiple positioning holes are opened inside the partition. A limit rod is fixedly connected to the side wall of the partition. An adjustment component is installed on the outer wall of the limit rod. An air suction component is installed inside the sintering box. The adjustment component includes a shelf. By pulling a pull ring, the positioning pin is pulled out of the positioning hole, allowing the shelf to slide between the limit rod and the outer wall of the partition, adjusting its position and height within the sintering box. After adjusting to a suitable position, releasing the pull ring causes the spring to return, allowing the positioning pin to insert into the corresponding positioning hole and fix the shelf. This achieves the effect of flexibly adjusting the internal space of the sintering box.

Description

Technical Field

[0001] This utility model relates to the field of magnetic core sintering technology, specifically to a manganese-zinc ferrite magnetic core sintering device. Background Technology

[0002] In the current era of rapid development in the electronic information industry, manganese-zinc ferrite cores, with their high permeability and low loss characteristics, are widely used in core electronic components such as transformers, inductors, and filters, becoming a key basic material supporting the development of emerging industries such as 5G communication, new energy vehicles, and smart homes. Sintering, as a core process in the preparation of manganese-zinc ferrite cores, directly affects the microstructure and electromagnetic properties of the cores. As core products develop towards miniaturization and high performance, higher requirements are placed on the temperature uniformity, space utilization, and operational flexibility of sintering equipment. Traditional sintering equipment, due to its fixed structure and difficulty in space adjustment, cannot meet the sintering needs of diversified products. Developing a manganese-zinc ferrite core sintering equipment with flexible space adjustment capabilities has become an urgent need to improve the quality and efficiency of core production.

[0003] In the existing technology, most common manganese-zinc ferrite core sintering devices adopt a fixed structure design. The sintering box is usually equipped with multiple layers of fixed shelves to place the cores to be sintered. The heating system is generally composed of resistance heaters distributed on the side walls or bottom of the sintering box. The resistance wires are energized to generate heat, and the heat is provided to the sintering box for sintering through heat conduction and heat radiation.

[0004] However, in existing technologies, the sintering apparatus for manganese-zinc ferrite cores suffers from the problem of inflexible adjustment of the internal space of the sintering chamber. Because the shelves inside the sintering chamber are fixed structures, operators find it difficult to adjust the shelf spacing according to the core height when producing cores of different sizes. When sintering large cores, the fixed shelf spacing can prevent the cores from being placed properly, or result in wasted space due to excessive spacing, reducing the sintering yield per batch. Conversely, when processing small cores, if the shelf spacing is too small, it can affect hot air circulation, leading to uneven heating of the cores and resulting in localized over- or under-burning. To address this issue, existing equipment needs to provide a more precise and convenient adjustment structure to achieve efficient adaptation to different core specifications, thereby improving the automation level of the sintering process and the stability of product quality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a manganese-zinc ferrite core sintering device, which solves the problem that the internal space of the sintering box cannot be flexibly adjusted and that it is difficult for operators to adjust the spacing of the shelves according to the height of the magnetic core.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a manganese-zinc ferrite core sintering device, comprising a sintering box, a heater disposed inside the sintering box, a heating wire electrically connected inside the heater, a display panel disposed on the top of the sintering box, a support base fixedly connected inside the sintering box, a partition fixedly connected to the top of the support base, a plurality of positioning holes being provided inside the partition, a limit rod fixedly connected to the side wall of the partition, an adjustment component disposed on the outer wall of the limit rod, and an air suction component disposed inside the sintering box; The adjustment assembly includes a shelf, which is slidably connected to the limiting rod and the outer wall of the partition. A positioning pin is slidably connected inside the shelf and is slidably connected inside the positioning hole. A fixing ring is fixedly connected to one side of the shelf, a connecting ring is fixedly connected to one end of the positioning pin, and a pull ring is fixedly connected to one end of the connecting ring. A spring is sleeved on the outer wall of the positioning pin, and both ends of the spring are fixedly connected inside the fixing ring and the connecting ring, respectively. A rotating assembly is provided on the top of the shelf.

[0007] Preferably, the rotating assembly includes a turntable and a handle. The turntable is rotatably connected to the top of the shelf, one end of the handle is fixedly connected to the outer wall of the turntable, an arc-shaped groove is provided inside the turntable, a shelf is provided on the top of the turntable, and the turntable is rotatably connected to the bottom of the shelf.

[0008] Preferably, the storage tray has a sliding groove inside, and the turntable has a limiting post inside, which is slidably connected inside the arc-shaped groove.

[0009] Preferably, a slider is fixedly connected to the top of the limiting post, the slider is slidably connected inside the groove, and a clamping block is fixedly connected to the top of the slider.

[0010] Preferably, the air intake assembly includes an air intake pipe and an air pump, the air intake pipe is inserted inside the sintering chamber, and the input end of the air pump is connected to one end of the air intake pipe.

[0011] Preferably, an air inlet pipe is fixedly connected to one output end of the air pump, a radiator is fixedly connected to the top end of the air inlet pipe, a cooling pipe is fixedly connected inside the radiator, and heat dissipation fins are fixedly connected to the outer wall of the cooling pipe.

[0012] Preferably, a liquid injection pipe is fixedly connected to one side of the radiator, and an air outlet pipe is fixedly connected to the top of the radiator.

[0013] Preferably, one end of the air outlet pipe is fixedly connected to an air pump II, and the output end of the air pump II is fixedly connected to an air delivery pipe, which passes through the inside of the sintering box.

[0014] Preferably, a support frame is fixedly connected to one side of the sintering box, one end of the support frame is fixedly connected to the outer wall of the radiator, and a connecting frame is fixedly connected to the outer wall of the support frame.

[0015] Preferably, a cooling fan is fixedly connected inside the connecting frame, and the cooling fan is in contact with the cooling fins.

[0016] Working principle: When using this manganese-zinc ferrite core sintering device, the heater inside the sintering chamber first operates. The heating wire inside the heater heats up after being energized, providing heat to the inside of the sintering chamber to reach the temperature required for core sintering. When it is necessary to adjust the space inside the sintering chamber, the placement plate can slide on the outer wall of the limiting rod and partition to adjust its position and height inside the sintering chamber. By pulling the pull ring, the connecting ring and positioning pin overcome the spring force and are pulled out from the positioning hole. At this time, the placement plate can be moved to slide on the outer wall of the partition and limiting rod. After adjusting to the desired position, the pull ring is released, the spring returns to its original position, and the positioning pin is inserted into the corresponding positioning hole to fix the placement plate, thereby achieving the effect of facilitating the adjustment of the space inside the sintering chamber. When placing the magnetic core, first place the magnetic core on top of the tray and press the tray down with your hand. Then turn the handle to make the turntable rotate on the top of the tray. The limiting post inside the turntable slides in the arc groove, so that the limiting post drives the slider to slide in the groove of the tray, thereby driving the clamp to move towards the center of the tray, thus making it easier to fix manganese zinc ferrite magnetic cores of different sizes. After sintering is complete, air pump one can be started to draw hot air from the sintering chamber through the suction pipe. The hot air enters the radiator through the intake pipe. The cooling pipes and heat dissipation fins in the radiator cool the air. Coolant can be injected through the injection pipe, allowing the coolant to flow in the cooling pipes and enhancing the cooling effect. At the same time, the cooling fan works in the connecting frame, cooperating with the heat dissipation fins to accelerate airflow and improve heat dissipation efficiency. The cooled air is then sent back to the sintering chamber through air pump two through the exhaust pipe and the supply pipe, maintaining a stable temperature and air circulation inside the sintering chamber, thereby achieving an effective and rapid cooling effect inside the sintering chamber.

[0017] This invention provides a sintering device for manganese-zinc ferrite magnetic cores. It has the following beneficial effects: 1. This utility model allows the placement plate to slide on the limit rod and the outer wall of the partition by pulling the pull ring to remove the positioning pin from the positioning hole. This adjusts the height of the placement plate within the sintering chamber. After adjusting to the appropriate position, the pull ring is released, and the spring returns to its original position, allowing the positioning pin to insert into the corresponding positioning hole to fix the placement plate. This achieves the effect of flexibly adjusting the internal space of the sintering chamber, solving the problem of fixed internal space in traditional sintering devices, which cannot be flexibly adjusted according to the size of the magnetic core, resulting in the inability to place large-sized magnetic cores or insufficient space utilization when sintering small-sized magnetic cores. This improves the applicability of the magnetic core sintering device.

[0018] 2. This utility model achieves the following: after sintering, the first air pump is started to extract hot air from the sintering chamber. The hot air enters the radiator through the air inlet pipe. The cooling pipe and heat dissipation fins in the radiator cool the air. The liquid injection pipe injects coolant to enhance the cooling effect. The cooling fan and heat dissipation fins work together to accelerate airflow and improve heat dissipation efficiency. The cooled air is sent back to the sintering chamber by the second air pump to maintain temperature stability and air circulation. This achieves the effect of effectively and rapidly cooling the inside of the sintering chamber, solving the problem of slow cooling speed in traditional sintering devices, which leads to long waiting time for subsequent operations and low production efficiency, and improving the production efficiency of the magnetic core sintering device. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the outer wall structure of the sintering box of this utility model; Figure 3 This is a schematic diagram of the internal structure of the sintering box of this utility model; Figure 4 This is a schematic diagram of the top structure of the support base of this utility model; Figure 5 This is a schematic diagram of the outer wall structure of the partition of this utility model; Figure 6 This is a schematic diagram of the internal structure of the shelf of this utility model; Figure 7 This is a schematic diagram of the internal structure of the storage tray of this utility model; Figure 8 This is a schematic diagram of the heat sink structure of this utility model.

[0020] The components are as follows: 1. Sintering box; 2. Heater; 3. Heating wire; 4. Display panel; 5. Support base; 6. Partition; 7. Positioning hole; 8. Limiting rod; 9. Storage plate; 10. Fixing ring; 11. Positioning pin; 12. Connecting ring; 13. Pull ring; 14. Spring; 15. Turntable; 16. Handle; 17. Arc groove; 18. Storage tray; 19. Slide groove; 20. Limiting post; 21. Slider; 22. Clamping block; 23. Suction pipe; 24. Air supply pipe; 25. Support frame; 26. Air pump one; 27. Air inlet pipe; 28. Radiator; 29. ​​Cooling pipe; 30. Heat dissipation fins; 31. Liquid injection pipe; 32. Air outlet pipe; 33. Air pump two; 34. Connecting frame; 35. Cooling fan. Detailed Implementation

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example: Please see the appendix Figure 1 - Appendix Figure 6 This utility model provides a manganese-zinc ferrite core sintering device, including a sintering box 1. A heater 2 is installed inside the sintering box 1, and a heating wire 3 is electrically connected inside the heater 2. The existing heater 2 is usually composed of a heating wire 3, an insulating support, and a terminal block. The insulating support is used to fix the heating wire 3 to prevent it from short-circuiting with other components, and the terminal block is used to connect the power supply so that the heating wire 3 can be energized and heated. This is common knowledge and will not be described in detail here. A display panel 4 is installed on the top of the sintering box 1. A support base 5 is fixedly connected inside the sintering box 1. A partition 6 is fixedly connected to the top of the support base 5. The partition 6 has multiple positioning holes 7 inside. The partition 6 uses its multiple positioning holes 7 to reasonably position each placement plate 9 in the device. At the same time, the partition 6 can effectively separate different areas to avoid uneven distribution of temperature and airflow, thereby ensuring that each set of magnetic cores is heated evenly during the sintering process. A limit rod 8 is fixedly connected to the side wall of the partition 6. An adjustment component is installed on the outer wall of the limit rod 8. An air suction component is installed inside the sintering box 1. The adjustment assembly includes a shelf 9, which is slidably connected to the outer wall of the limiting rod 8 and the partition 6. The shelf 9 can slide on the outer wall of the limiting rod 8 and the partition 6 to adjust its position and height inside the sintering chamber 1. A positioning pin 11 is slidably connected inside the shelf 9 and is slidably connected inside the positioning hole 7. A fixing ring 10 is fixedly connected to one side of the shelf 9. A connecting ring 12 is fixedly connected to one end of the positioning pin 11 and a pull ring 13 is fixedly connected to one end of the connecting ring 12. A spring 14 is sleeved on the outer wall of the positioning pin 11. The two ends of the spring 14 are fixedly connected to the inside of the fixing ring 10 and the connecting ring 12, respectively. After the shelf 9 is moved to the desired position, the pull ring 13 is released, the spring 14 returns to its original position, and the positioning pin 11 automatically inserts into the corresponding positioning hole 7 to fix the shelf 9. This structural design greatly facilitates the adjustment of the internal space of the sintering chamber 1, allowing the operator to flexibly adjust the space according to the size and number of magnetic cores. A rotating assembly is provided on the top of the shelf 9.

[0023] Please see the appendix Figure 3 - Appendix Figure 7The rotating assembly includes a turntable 15 and a handle 16. The turntable 15 is rotatably connected to the top of the shelf 9. One end of the handle 16 is fixedly connected to the outer wall of the turntable 15. An arc-shaped groove 17 is provided inside the turntable 15. A shelf 18 is provided on the top of the turntable 15. The turntable 15 is rotatably connected to the bottom of the shelf 18. A sliding groove 19 is provided inside the shelf 18. A limiting post 20 is provided inside the turntable 15. The limiting post 20 is slidably connected inside the arc-shaped groove 17. A slider 21 is fixedly connected to the top of the limiting post 20. The slider 21 is slidably connected inside the sliding groove 19. A clamping block 22 is fixedly connected to the top of the slider 21. The sliding groove 19 inside the shelf 18, as well as the slider 21 and the clamping block 22, enable the magnetic core to be well fixed and supported during the sintering process.

[0024] Please see the appendix Figure 1 and attached Figure 8 The air intake assembly includes an air intake pipe 23 and an air pump 26. The air intake pipe 23 is installed inside the sintering chamber 1. The input end of the air pump 26 is connected to one end of the air intake pipe 23, and the output end of the air pump 26 is fixedly connected to an air inlet pipe 27. A radiator 28 is fixedly connected to the top of the air inlet pipe 27 to cool and dissipate heat, ensuring temperature stability. A cooling pipe 29 is fixedly connected inside the radiator 28, and heat dissipation fins 30 are fixedly connected to the outer wall of the cooling pipe 29. The cooling pipe 29 and the heat dissipation fins 30 work together to make air cooling and heat dissipation more efficient. A liquid injection pipe 31 is fixedly connected to one side of the radiator 28. The liquid injection pipe 31 injects cooling liquid into the radiator 28 to further improve heat dissipation efficiency and ensure long-term stable operation of the device. The top of the radiator 28 is fixedly connected to... An exhaust pipe 32 is connected to the sintering chamber 1. One end of the exhaust pipe 32 is fixedly connected to an air pump 33. The output end of the air pump 33 is fixedly connected to an air supply pipe 24. The air supply pipe 24 passes through the interior of the sintering chamber 1. After cooling, the air is sent back to the sintering chamber 1 through the air pump 33 and the air supply pipe 24, ensuring the circulation of air inside the chamber. This ensures a uniform temperature distribution inside the sintering chamber 1 and allows for the rapid discharge of hot air while introducing cold air, ensuring that the temperature inside the chamber can be rapidly reduced and improving the cooling efficiency of the magnetic core. A support frame 25 is fixedly connected to one side of the sintering chamber 1. One end of the support frame 25 is fixedly connected to the outer wall of the radiator 28. A connecting frame 34 is fixedly connected to the outer wall of the support frame 25. A cooling fan 35 is fixedly connected inside the connecting frame 34 and is in contact with the heat dissipation fins 30.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manganese zinc ferrite core sintering apparatus comprising a sintering box (1), characterized in that, The sintering box (1) is equipped with a heater (2) inside, and a heating wire (3) is electrically connected inside the heater (2). A display panel (4) is provided on the top of the sintering box (1). A support base (5) is fixedly connected inside the sintering box (1). A partition (6) is fixedly connected on the top of the support base (5). Multiple positioning holes (7) are opened inside the partition (6). A limit rod (8) is fixedly connected to the side wall of the partition (6). An adjustment component is provided on the outer wall of the limit rod (8). An air suction component is provided inside the sintering box (1). The adjustment assembly includes a shelf (9), which is slidably connected to the limit rod (8) and the outer wall of the partition (6). A positioning pin (11) is slidably connected inside the shelf (9). The positioning pin (11) is slidably connected inside the positioning hole (7). A fixing ring (10) is fixedly connected to one side of the shelf (9). A connecting ring (12) is fixedly connected to one end of the positioning pin (11). A pull ring (13) is fixedly connected to one end of the connecting ring (12). A spring (14) is sleeved on the outer wall of the positioning pin (11). The two ends of the spring (14) are fixedly connected to the inside of the fixing ring (10) and the connecting ring (12), respectively. A rotating assembly is provided on the top of the shelf (9).

2. The sintering device for Mn-Zn ferrite core according to claim 1, wherein The rotating assembly includes a turntable (15) and a handle (16). The turntable (15) is rotatably connected to the top of the shelf (9). One end of the handle (16) is fixedly connected to the outer wall of the turntable (15). An arc groove (17) is provided inside the turntable (15). A shelf (18) is provided on the top of the turntable (15). The turntable (15) is rotatably connected to the bottom of the shelf (18).

3. The sintering device for a Mn-Zn ferrite core according to claim 2, wherein The storage tray (18) has a sliding groove (19) inside, and the turntable (15) has a limiting post (20) inside, which is slidably connected inside the arc-shaped groove (17).

4. The sintering device for a Mn-Zn ferrite core according to claim 3, wherein The top of the limiting post (20) is fixedly connected to a slider (21), the slider (21) is slidably connected inside the slide groove (19), and the top of the slider (21) is fixedly connected to a clamping block (22).

5. The sintering device for a Mn-Zn ferrite core according to claim 1, wherein The air intake assembly includes an air intake pipe (23) and an air pump (26). The air intake pipe (23) passes through the inside of the sintering box (1), and the input end of the air pump (26) is connected to one end of the air intake pipe (23).

6. The sintering device for a Mn-Zn ferrite core according to claim 5, wherein The air pump (26) is fixedly connected to an air inlet pipe (27) at its output end. A radiator (28) is fixedly connected to the top of the air inlet pipe (27). A cooling pipe (29) is fixedly connected inside the radiator (28). A heat dissipation fin (30) is fixedly connected to the outer wall of the cooling pipe (29).

7. The sintering device for a Mn-Zn ferrite core according to claim 6, wherein A liquid injection pipe (31) is fixedly connected to one side of the radiator (28), and an air outlet pipe (32) is fixedly connected to the top of the radiator (28).

8. The manganese-zinc ferrite core sintering apparatus according to claim 7, characterized in that, One end of the air outlet pipe (32) is fixedly connected to an air pump (33), and the output end of the air pump (33) is fixedly connected to an air delivery pipe (24). The air delivery pipe (24) passes through the inside of the sintering box (1).

9. The sintering device for a Mn-Zn ferrite core according to claim 8, wherein A support frame (25) is fixedly connected to one side of the sintering box (1), and one end of the support frame (25) is fixedly connected to the outer wall of the radiator (28). A connecting frame (34) is fixedly connected to the outer wall of the support frame (25).

10. The sintering device for a Mn-Zn ferrite core according to claim 9, wherein A cooling fan (35) is fixedly connected inside the connecting frame (34), and the cooling fan (35) is in contact with the cooling fins (30).

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