Continuous sintering furnace for magnetic cores

By introducing heat-conducting plates to recover heat in a continuous magnetic core sintering furnace and using guide rollers to stabilize the movement of the tray, the problems of heat waste and tray tipping in existing equipment are solved, and a high-efficiency and low-cost magnetic core sintering process is achieved.

CN223500101UActive Publication Date: 2025-10-31ZHEJIANG ZHONGHAN ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202422951369.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-10-31
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

Existing magnetic core sintering equipment suffers from low production efficiency, high energy consumption, uneven temperature control, and serious heat waste. Furthermore, the trays are prone to tipping over during movement, which affects sintering efficiency.

Method used

A continuous magnetic core sintering furnace was designed, comprising a sintering section and a cooling section. The heat is absorbed by a heat-conducting plate and returned to the sintering section. The movement of the pallet is stabilized by guide rollers and electric push rods, thereby improving heat utilization and reducing the probability of pallet tipping.

Benefits of technology

It improves heat utilization, reduces operating costs, enhances sintering efficiency, reduces the risk of tray tipping, and improves the stability and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of sintering furnaces, and discloses a magnetic core continuous type sintering furnace which comprises a sintering part and a conveying part, the sintering part comprises a sintering part and a cooling part, the cooling part comprises a cooler body, a cooling cavity is formed in the cooler body, and heat conduction plates are fixedly connected to the two symmetrical sides of the cooler body. The sintering part is arranged in the cooling cavity, the heat conduction plate part is located in the cooling cavity, a cavity is formed in the heat conduction plate, one side of the heat conduction plate is fixedly connected with an air inlet pipe and an air outlet pipe, and the air outlet end of the air outlet pipe extends into the sintering part. And hot air is conveyed back into the sintering part through the air outlet pipe, so that the magnetic core in the sintering part is heated, a large amount of heat is prevented from being directly volatilized into the air, waste of thermal resources is reduced, and the use cost is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of sintering furnace technology, specifically relating to a continuous magnetic core sintering furnace. Background Technology

[0002] As a key component in electronic, electrical, and communication equipment, the performance of magnetic cores directly affects the efficiency, stability, and reliability of these devices. Magnetic core sintering is a crucial step in the manufacturing process. Traditional sintering processes often employ intermittent furnaces, resulting in low production efficiency, high energy consumption, and uneven temperature control. With the expanding applications of magnetic materials and increasing demands on material performance, equipment capable of continuous magnetic core sintering has emerged. During sintering, the magnetic core requires cooling afterward, but existing devices cannot utilize the heat generated during this process. A significant amount of heat evaporates into the air, wasting thermal resources and increasing operating costs. Furthermore, existing devices stack multiple trays during core sintering, increasing the risk of tipping over during the process of moving the trays into the sintering furnace and reducing the furnace's sintering efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a continuous sintering furnace for magnetic cores to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a continuous sintering furnace for magnetic cores, comprising a sintering component and a conveying component for conveying a sintering tray along a preset path, wherein the sintering component comprises a sintering portion for sintering magnetic cores and a cooling portion for cooling the sintered magnetic cores, and a channel for accommodating the conveying component is formed between the sintering portion and the cooling portion.

[0005] The cooling section includes a cooler body, on which a cooling cavity is formed. Heat-conducting plates are fixedly connected to both sides of the cooler body. The heat-conducting plates are located inside the cooling cavity, and a cavity is formed inside the heat-conducting plates. An air inlet pipe and an air outlet pipe are fixedly connected to one side of the heat-conducting plates, and the air outlet end of the air outlet pipe extends into the interior of the sintering section.

[0006] Preferably, two guide members are symmetrically installed at the feed end of the conveyor, forming a gap between the two guide members for the pallet to move. Each guide member includes a base frame, and an electric push rod is fixedly connected to one side of each of the two base frames facing away from each other. A movable frame is provided on one side between the two base frames. The telescopic end of the electric push rod is fixedly connected to the movable frame, and a side groove is formed on the side of the movable frame away from the base frame. Multiple guide rollers are rotatably connected inside the side groove.

[0007] Preferably, an air guide cover is fixedly connected to the air intake end of the air intake pipe, and an air guide fan is fixedly connected inside the air guide cover.

[0008] Preferably, the sintering section includes a sintering furnace body, on which a sintering cavity is formed.

[0009] Preferably, the conveying component includes a mounting frame, with multiple drive rollers rotatably connected to the top of the mounting frame and feet fixedly connected to the bottom of the mounting frame, and a conveyor belt sleeved between the multiple drive rollers.

[0010] Preferably, a motor is fixedly connected to the mounting frame, and the output end of the motor is connected to the transmission roller.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) By setting a heat-conducting plate, when the sintering tray enters the cooling chamber, the heat-conducting plate absorbs the evaporated heat, which raises the temperature of the gas inside the heat-conducting plate. The hot air is then transported back to the sintering part through the air outlet pipe, thereby heating the magnetic core inside the sintering part. This avoids a large amount of heat being directly evaporated into the air, reduces the waste of thermal resources, and lowers the cost of use.

[0013] (2) This utility model uses an electric push rod to drive the moving frame to move relative to the base frame, so that the moving frame drives the guide roller to move, and then the guide roller touches the sintering tray. When the sintering tray moves, the guide roller supports the side of the sintering tray, and the tray moves into the sintering furnace. In this process, the probability of the tray tipping over is reduced and the sintering efficiency of the sintering furnace is improved. Attached Figure Description

[0014] Figure 1 This is one of the perspective views of this utility model;

[0015] Figure 2 This is a second perspective view of the present utility model;

[0016] Figure 3 This is a perspective view of the conveying component of this utility model;

[0017] Figure 4 This is a perspective view of the guide component of this utility model;

[0018] Figure 5 This is a perspective view of the sintered part of this utility model;

[0019] Figure 6 This is a perspective view of the sintering part of this utility model;

[0020] Figure 7 This is a perspective view of the cooling section of this utility model;

[0021] In the diagram: 1. Conveying component; 11. Base; 12. Mounting frame; 13. Drive roller; 14. Conveying track; 15. Motor; 2. Guide component; 21. Moving frame; 22. Electric push rod; 23. Base frame; 24. Guide roller; 25. Side groove; 3. Sintering component; 31. Sintering section; 311. Sintering furnace body; 312. Sintering chamber; 32. Cooling section; 321. Cooler body; 322. Heat conduction plate; 323. Air outlet pipe; 324. Air inlet pipe; 325. Air guide hood; 326. Air guide fan; 327. Cooling chamber. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-7 As shown, this utility model provides the following technical solution:

[0024] A continuous sintering furnace for magnetic cores includes a sintering component 3 and a conveying component 1 for conveying a sintering tray along a preset path. The sintering component 3 includes a sintering portion 31 for sintering magnetic cores and a cooling portion 32 for cooling the sintered magnetic cores, and a channel for accommodating the conveying component 1 is formed between the sintering portion 31 and the cooling portion 32.

[0025] The cooling section 32 includes a cooler body 321, on which a cooling cavity 327 is formed. Heat-conducting plates 322 are fixedly connected to both sides of the cooler body 321 symmetrically. The heat-conducting plates 322 are partially located inside the cooling cavity 327, and a cavity is formed inside the heat-conducting plates 322. An air inlet pipe 324 and an air outlet pipe 323 are fixedly connected to one side of the heat-conducting plates 322, and the air outlet end of the air outlet pipe 323 extends into the interior of the sintering section 31.

[0026] With the above technical solution, when personnel need to sinter the magnetic core, the magnetic core is added to the sintering tray, and the sintering tray is placed on the conveyor 1. The conveyor 1 works to move the sintering tray into the sintering section 31. The magnetic core on the sintering tray is sintered in the sintering section 31. After the magnetic core is sintered, the sintering tray continues to move, moving the magnetic core into the cooling chamber 327 on the cooler body 321. The cooler body 321 cools the sintered magnetic core, and the heat is absorbed by the heat-conducting plate 322 in the cooling chamber 327. Gas is introduced through the air inlet pipe 324 and hot air is discharged through the air outlet pipe 323, so that the hot air is transported back into the sintering section 31, thereby utilizing the heat and improving the utilization rate of thermal resources.

[0027] In addition, in this invention, after the magnetic core is added to the sintering tray, to ensure a smoother entry of the sintering tray into the sintering section 31, as follows: Figures 1-4 As shown, two guide members 2 are symmetrically installed at the feed end of the conveyor 1. A gap is formed between the two guide members 2 for the pallet to move. The guide member 2 includes a base frame 23. An electric push rod 22 is fixedly connected to the opposite side of the two base frames 23. A movable frame 21 is provided on the side between the two base frames 23. The telescopic end of the electric push rod 22 is fixedly connected to the movable frame 21. A side groove 25 is formed on the side of the movable frame 21 away from the base frame 23. Multiple guide rollers 24 are rotatably connected inside the side groove 25.

[0028] In this embodiment, before placing the sintering tray, the electric push rod 22 is operated to drive the moving frame 21 to move, thereby causing the moving frame 21 to drive the guide roller 24 to move. The guide roller 24 abuts against the sintering tray. When the conveyor 1 drives the sintering tray to move, the guide roller 24 restricts the direction of movement of the sintering tray to prevent the sintering tray from accidentally tipping over during the movement.

[0029] To improve the efficiency of other intake manifolds 324, such as Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, an air intake shroud 325 is fixedly connected to the air intake end of the air intake pipe 324, and an air guide fan 326 is fixedly connected inside the air intake shroud 325.

[0030] In this embodiment, the air guide fan 326 operates to guide external gas into the air guide cover 325, and the air guide cover 325 guides the gas into the air inlet pipe 324, so that the gas is delivered to the heat conduction plate 322. With the cooperation of the heat conduction plate 322, the gas temperature is increased.

[0031] Specifically, in one embodiment, regarding the sintered portion 31 described above, as... Figures 1-2 , Figures 5-6 As shown, the sintering section 31 includes a sintering furnace body 311, on which a sintering cavity 312 is formed.

[0032] In this embodiment, after the sintering tray carries the magnetic core into the sintering chamber 312, the magnetic core on the sintering tray is sintered by the sintering furnace body 311.

[0033] Furthermore, in this utility model, regarding the aforementioned conveying member 1, as follows: Figures 1-3 As shown, the conveyor 1 includes a mounting frame 12, with multiple drive rollers 13 rotatably connected to the top of the mounting frame 12, and a base foot 11 fixedly connected to the bottom of the mounting frame 12. A conveyor belt 14 is sleeved between the multiple drive rollers 13.

[0034] In this embodiment, after the sintering pallet is placed on the conveyor belt 14, it is supported by the mounting frame 12 by the base 11, and the transmission roller 13 rotates, thereby driving the conveyor belt 14 to rotate, thus moving the sintering pallet.

[0035] Furthermore, regarding how the drive roller 13 rotates, such as Figures 1-3 As shown, a motor 15 is fixedly connected to the mounting bracket 12, and the output end of the motor 15 is connected to the transmission roller 13.

[0036] In this embodiment, when it is necessary to drive the transmission roller 13 to rotate, the motor 15 works, thereby driving the transmission roller 13 and the conveyor belt 14 to rotate.

[0037] 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 continuous sintering furnace for magnetic cores, characterized in that: The sintering component (3) includes a sintering component (3) and a conveying component (1) for conveying a sintering tray along a preset path. The sintering component (3) includes a sintering portion (31) for sintering a magnetic core and a cooling portion (32) for cooling the magnetic core after sintering. A channel for accommodating the conveying component (1) is formed between the sintering portion (31) and the cooling portion (32). The cooling section (32) includes a cooler body (321), on which a cooling cavity (327) is formed. Heat-conducting plates (322) are fixedly connected to both sides of the cooler body (321). The heat-conducting plates (322) are partially located inside the cooling cavity (327), and a cavity is formed inside the heat-conducting plates (322). An air inlet pipe (324) and an air outlet pipe (323) are fixedly connected to one side of the heat-conducting plates (322). The air outlet end of the air outlet pipe (323) extends into the interior of the sintering section (31).

2. The continuous sintering furnace for magnetic cores according to claim 1, characterized in that: The feed end of the conveyor (1) is symmetrically equipped with two guides (2), and a gap is formed between the two guides (2) for the pallet to move. The guide (2) includes a base frame (23). An electric push rod (22) is fixedly connected to the opposite side of the two base frames (23), and a movable frame (21) is provided on the side between the two base frames (23). The telescopic end of the electric push rod (22) is fixedly connected to the movable frame (21), and a side groove (25) is formed on the side of the movable frame (21) away from the base frame (23). Multiple guide rollers (24) are rotatably connected inside the side groove (25).

3. A continuous sintering furnace for magnetic cores according to claim 1 or 2, characterized in that: The air intake end of the air intake pipe (324) is fixedly connected to an air guide cover (325), and an air guide fan (326) is fixedly connected inside the air guide cover (325).

4. A continuous sintering furnace for magnetic cores according to claim 1 or 2, characterized in that: The sintering section (31) includes a sintering furnace body (311) on which a sintering cavity (312) is formed.

5. A continuous sintering furnace for magnetic cores according to claim 1 or 2, characterized in that: The conveying component (1) includes a mounting frame (12), a plurality of drive rollers (13) are rotatably connected to the top of the mounting frame (12), and a base (11) is fixedly connected to the bottom of the mounting frame (12). A conveyor belt (14) is sleeved between the plurality of drive rollers (13).

6. A continuous sintering furnace for magnetic cores according to claim 5, characterized in that: A motor (15) is fixedly connected to the mounting bracket (12), and the output end of the motor (15) is connected to the transmission roller (13).