High-temperature sintering furnace for magnetic shoes

Abstract

The utility model discloses a magnetic shoe high-temperature sintering furnace which comprises a sintering furnace body, a thermal insulation baffle and a heating device, the thermal insulation baffle is hinged to the outer surface of one end of the sintering furnace body, the heating device is arranged in the sintering furnace body, a turnover mechanism is arranged in the heating device, and the turnover mechanism comprises a turnover frame, a guide rail and a guide protruding block. Sliding grooves are symmetrically distributed in the sintering furnace body and are in sliding fit with the guide rails, a rotating shaft is arranged at one end of the overturning frame, the other end of the rotating shaft is connected with an inner gear ring, the inner surface of the inner gear ring is in meshed connection with a driving gear, and the output end of the driving gear is connected with a stepping motor. According to the high-temperature sintering furnace for the magnetic shoes, the positions of materials on the inner wall of the overturning frame are cyclically alternated through rotation of the overturning frame, so that it is ensured that all parts of the magnetic shoes can be subjected to uniform heat distribution, the product quality problem caused by uneven heating is avoided, and due to the fact that heating is more uniform in the sintering process, the product quality is improved. And the internal structure of the magnetic shoe can be better formed and cured.

Description

Technical Field

[0001] This utility model relates to the field of magnetic tile processing technology, specifically a high-temperature sintering furnace for magnetic tiles. Background Technology

[0002] Uneven heating often occurs during the sintering process, which seriously affects the quality of ferrite tiles. This problem is caused by the uneven contact area between the internal materials and the heat source. For example, when materials are piled up on the inner wall of the sintering furnace, materials farther from the heat source are not heated sufficiently, while materials closer to the heat source are overheated. Therefore, developing a sintering turning device that can effectively reduce uneven heating during the sintering process has become an important task to improve the production quality of ferrite tiles. Utility Model Content

[0003] The purpose of this invention is to provide a high-temperature sintering furnace for magnetic tiles to solve the problem of uneven heating that often occurs during the heating process of sintering equipment mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-temperature sintering furnace for magnetic tiles, including a tilting frame located inside the sintering furnace body, wherein the tilting frame is coaxial with the sintering furnace body and is rotatable;

[0005] The tilting frame is made of manganese steel and has a thickness of not less than 2 cm.

[0006] By incorporating a flipping mechanism within the heating device, the flipping frame, driven by a stepper motor and guided by a guide rail, slides and rolls within a groove. This allows the material inside the flipping frame to circulate and alternate with the position of the inner wall. This design ensures uniform heat distribution across all parts of the magnetic tile, effectively preventing product quality issues caused by uneven heating, such as differences in magnetic properties due to localized overheating or undercooling. This significantly improves the consistency and stability of the magnetic tile products. Because the magnetic tile is heated more evenly during sintering, its internal structure can be better formed and solidified, thereby enhancing its magnetic properties, including permeability and saturation magnetization. This allows ferrite magnetic tiles to fully realize their potential in high-performance, high-power applications, broadening the application range of ferrite magnetic tiles. (Guide bumps) The design makes the tilting frame more stable inside the heating device. The circular guide protrusion fits against the inner wall of the chute, providing a wider support surface and reducing swaying and vibration during the tilting process. Compared with the traditional bottom-supported method, this support structure can better ensure the smooth operation of the tilting frame, further improving the stability and reliability of the sintering process. The heat insulation baffle is hinged to the outer surface of one end of the sintering furnace body. Its circular shape matches the opening of the sintering furnace body, which can effectively block the opening to prevent material overflow and also provide heat insulation protection for the inside of the sintering furnace, reducing heat loss. At the same time, the tilting frame has multiple mesh holes arranged in a ring inside, which improves the heat conduction efficiency, allowing the magnetic tiles to be heated faster and more evenly, shortening the sintering time and improving production efficiency.

[0007] As a preferred technical solution of this utility model, the sintering furnace body also includes a heat insulation baffle and a heating device. The heat insulation baffle is hinged to the outer surface of one end of the sintering furnace body. The heating device is set inside the sintering furnace body. The heating device is equipped with a flipping mechanism, which includes a flipping frame, a guide rail and a guide protrusion. Sliding grooves are symmetrically distributed inside the sintering furnace body. The sliding grooves are slidably engaged with the guide rail. One end of the flipping frame is equipped with a rotating shaft. The other end of the rotating shaft is connected to an internal gear ring. A drive gear is meshed with the inner surface of the internal gear ring. The output end of the drive gear is connected to a stepper motor.

[0008] As a preferred technical solution of this utility model, a fixing frame is provided at one end of the sintering furnace body, and the fixing frame is fixedly installed with the stepper motor.

[0009] As a preferred technical solution of this utility model, the number of guide rails is the same as the number of slides.

[0010] As a preferred technical solution of this utility model, the guide protrusions are symmetrically distributed at the left and right ends of the guide rail. The guide rail is provided with a groove to accommodate the ball, and the outer edge height of the ball is greater than the outer edge height of the guide protrusion. The ball rolls between the groove and the slide, which can effectively reduce the friction during the movement of the flipping mechanism. This not only reduces the energy consumption of the stepper motor and extends the service life of the equipment, but also makes the rotation of the flipping frame smoother and improves the overall operating efficiency of the equipment.

[0011] As a preferred technical solution of this utility model, the guide bump has a circular ring structure, and the center point of the guide bump overlaps with the outer surface of one end of the guide rail.

[0012] As a preferred technical solution of this utility model, the guide protrusion and the guide rail fit together with the inner surface of the slide groove, the guide rail is provided with a groove to accommodate the ball, and the outer edge height of the ball is greater than the outer edge height of the guide protrusion.

[0013] Compared with existing technologies, the beneficial effects of this novel magnetic tile high-temperature sintering furnace are:

[0014] The rotation of the flipping frame causes the material to be flipped and heated on the inner wall of the frame, ensuring that all parts of the magnetic tile receive uniform heat distribution. This avoids product quality problems caused by uneven heating. Because the heating is more uniform during the sintering process, the internal structure of the magnetic tile can be better formed and solidified, thereby improving the magnetic properties of the magnetic tile, including magnetic permeability and saturation magnetization. This allows it to play a greater role in high-performance, high-power, and high-electrical applications. The design of the guide protrusions makes the support of the flipping frame inside the heating device more stable. The annular guide protrusions fit against the inner wall of the slide, providing a wider support surface and reducing shaking and vibration during the flipping process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal cross-sectional structure of the sintering furnace body of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the flipping mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the sliding groove and the guide protrusion mating end of this utility model;

[0019] Figure 5 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0020] In the diagram: 1. Sintering furnace body; 2. Insulating baffle; 3. Heating device; 4. Tilting frame; 5. Guide rail; 6. Guide protrusion; 7. Ball bearing; 8. Slide groove; 9. Rotating shaft; 10. Stepper motor; 11. Drive gear; 12. Internal gear ring; 13. Fixing frame. Detailed Implementation

[0021] Please see Figure 1-5 This utility model provides a technical solution: a high-temperature sintering furnace for magnetic tiles, including a sintering furnace body 1, a heat insulation baffle 2, and a heating device 3. The heat insulation baffle 2 is hinged to the outer surface of one end of the sintering furnace body 1. The heating device 3 is located inside the sintering furnace body 1. A flipping mechanism is provided inside the heating device 3. The flipping mechanism includes a flipping frame 4, a guide rail 5, and a guide protrusion 6. Sliding grooves 8 are symmetrically distributed inside the sintering furnace body 1. The sliding grooves 8 are slidably engaged with the guide rail 5. A rotating shaft 9 is provided at one end of the flipping frame 4. An internal gear ring 12 is connected to the other end of the rotating shaft 9. A drive gear 11 is meshed with the inner surface of the internal gear ring 12. The output end of the drive gear 11 is connected to a stepper motor 10.

[0022] The actual weight and specific design dimensions of the tilting frame 4, along with the estimated density of manganese steel, are calculated based on the design dimensions of the tilting frame 4 and the density of manganese steel (approximately 7.85 g / cm³). Assuming the volume of the tilting frame 4 is 0.3 cubic meters (this is an example value; the actual volume needs to be calculated based on the actual design dimensions), the mass of the tilting frame 4 is approximately 0.3 m³ * 7.85 g / cm³ * 1000 cm³ / m³ = 2355 kg, or approximately 2.35 tons.

[0023] During the sintering process, the tilting frame 4 needs to withstand the cyclic load generated by high temperature and the weight of the material.

[0024] The tilting frame 4 is made of manganese steel with a thickness of less than 3 cm. While ensuring sufficient rigidity, the tilting frame 4 can be tilted. The manganese steel still maintains good thermal conductivity within the 3 cm thickness range, which can quickly transfer heat to the material. In addition, the 3 cm thickness can provide sufficient structural strength and rigidity to ensure stable support of the tilting frame 4 under high temperature and heavy load.

[0025] The heat insulation baffle 2 set at the front end of the sintering furnace body 1 is circular and matches the shape of the opening at one end of the sintering furnace body 1. It is used to block the opening of the sintering furnace body 1 to prevent material from overflowing, and at the same time to provide heat insulation protection for the inside. The heating device 3 and the turning frame 4 are positioned to correspond to each other to ensure that the turning frame 4 is fully heated. Since there is a lot of material inside the turning frame 4, in order to improve the uniformity of heating, the material position inside the turning frame 4 is circulated and alternated by turning.

[0026] The tilting frame 4 is driven by a rotating shaft 9 connected to one end, which meshes with the internal gear ring 12 and the drive gear 11. Under the drive of the stepper motor 10, the tilting frame 4 slides in the slide groove 8 with the guide rail 5, causing the tilting frame 4 to roll inside the heating device 3, so that the material inside the tilting frame 4 and the inner wall position alternate in a cycle. The tilting frame 4 has multiple holes with mesh arranged in a ring inside to improve the heat conduction efficiency.

[0027] The shape, structure, and position of the guide protrusion 6 make the guide protrusion 6 the main support component. The guide protrusion 6 fits against the inner wall of the slide groove 8. The protruding part of the guide protrusion 6 serves as a support point. When the flipping frame 4 is inside the heating device 3, it is no longer supported by the bottom, but by the end of the guide protrusion 6 that fits against the slide groove 8. Since the fitting end is annular, the support surface is wider, making the flipping frame 4 more stable when flipping.

[0028] One end of the ball bearing 7 protrudes outward, and the inside of the flipping frame 4 is provided with a groove that matches the outer edge of the ball bearing 7. The ball bearing 7 rolls between the groove and the slide 8, which can reduce the friction during the movement of the flipping mechanism.

[0029] Working principle: First, open the heat insulation baffle 2 that is hinged to the outer surface of one end of the sintering furnace body 1, and put the magnetic tile material to be sintered into the inside of the turning frame 4. After the heat insulation baffle 2 is closed, the sintering furnace body 1 forms a sealed space, preparing for the subsequent high-temperature sintering process. Then, the heating device 3 is activated to heat the tilting frame 4 and materials inside the sintering furnace body 1. Simultaneously, the stepper motor 10 is activated to drive the drive gear 11 to rotate. Since the drive gear 11 meshes with the inner gear ring 12, which is connected to the tilting frame 4 via the rotating shaft 9, the rotation of the drive gear 11 drives the inner gear ring 12 to rotate, which in turn drives the tilting frame 4 to rotate via the rotating shaft 9. During rotation, the tilting frame 4 slides and rotates using the guide rails 5 at both ends that are symmetrically distributed with the sliding grooves 8 inside the sintering furnace body 1. During this process, the position of the material inside the tilting frame 4 continuously circulates and alternates with the inner wall, ensuring that all parts of the material can fully contact the heat generated by the heating device 3, thus achieving uniform heating. During the movement of the tilting frame 4, the guide protrusions 6 symmetrically distributed at both ends of the guide rails 5 play a crucial supporting role. The guide protrusions 6 are circular rings. The structure is shaped such that its center point overlaps with the outer surface of one end of the guide rail 5, and the inner surfaces of the guide protrusion 6 and the guide rail 5 match each other. The guide protrusion 6 fits against the inner wall of the slide 8, with the annular fitting end serving as the support surface. Compared with the traditional bottom support method, the support surface is wider, which can effectively reduce the shaking and vibration during the flipping process and ensure the stable operation of the flipping frame 4. The guide rail 5 is provided with a groove to accommodate the ball bearing 7, and the outer edge height of the ball bearing 7 is greater than the outer edge height of the guide protrusion 6. When the flipping frame 4 moves, the ball bearing 7 rolls between the groove and the slide 8, converting sliding friction into rolling friction, thereby significantly reducing the friction force during the movement of the flipping mechanism, making the rotation of the flipping frame 4 smoother, and reducing the wear and energy consumption of the equipment. Finally, after the magnetic tile material completes the sintering process under high temperature and uniform heating conditions, the heating device 3 and the stepper motor 10 are turned off. After the internal temperature of the sintering furnace 1 drops to a safe range, the heat insulation baffle 2 is opened and the sintered magnetic tile product is taken out.

Claims

1. A magnetic tile high-temperature sintering furnace, comprising a sintering furnace body (1), characterized in that: a turnover frame (4) is further arranged in the sintering furnace body (1), the turnover frame (4) is coaxial with the sintering furnace body (1) and can rotate; the turnover frame (4) is made of manganese steel and has a thickness of not less than 2 cm. The sintering furnace body (1) further comprises a heat insulation baffle (2) and a heating device (3), the heat insulation baffle (2) is hinged to the outer surface of one end of the sintering furnace body (1), the heating device (3) is arranged inside the sintering furnace body (1), the heating device (3) is provided with a turnover mechanism inside, the turnover mechanism comprises the turnover frame (4), a guide rail (5) and a guide protrusion (6), the sintering furnace body (1) is symmetrically provided with a sliding groove (8) inside, the sliding groove (8) is in sliding fit with the guide rail (5), one end of the turnover frame (4) is provided with a rotating shaft (9), the other end of the rotating shaft (9) is connected with an inner gear ring (12), the inner gear ring (12) is in meshing connection with a driving gear (11) on the inner surface, and the output end of the driving gear (11) is connected with a stepping motor (10). One end of the sintering furnace body (1) is provided with a fixing frame (13), and the fixing frame (13) is fixedly installed with the stepping motor (10).

2. The magnetic tile high-temperature sintering furnace according to claim 1, characterized in that: The number of the guide rails (5) is the same as that of the sliding grooves (8).

3. The magnetic tile high-temperature sintering furnace according to claim 2, characterized in that: The guide protrusions (6) are symmetrically distributed on the left and right ends of the guide rails (5).

4. The magnetic tile high-temperature sintering furnace according to claim 2, characterized in that: The guide protrusions (6) are in the form of a circular ring, and the center point of the guide protrusions (6) is coincident with the outer surface of one end of the guide rail (5).

5. The magnetic tile high-temperature sintering furnace according to claim 2, characterized in that: The guide protrusions (6) and the guide rails (5) are in mutual fit with the inner surface of the sliding grooves (8).

6. The magnetic tile high-temperature sintering furnace according to claim 2, characterized in that: The guide rail (5) is provided with a groove for accommodating a ball (7) inside, and the outer edge height of the ball (7) is greater than the outer edge height of the guide protrusion (6).

7. The magnetic tile high-temperature sintering furnace according to claim 5, characterized in that: ​ 8. The magnetic tile high-temperature sintering furnace according to claim 2, characterized in that: ​

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