A manganese-zinc ferrite core sintering device and sintering process

Abstract

The application relates to the technical field of magnetic core sintering, and discloses a manganese-zinc ferrite magnetic core sintering device and a sintering process, which comprise a support, a furnace body is fixedly arranged at the side wall of the support, a conveying belt is sleeved at the top of the outer wall of the support, a motor is fixedly arranged at the outer wall of the support, when the magnetic core starts to move, an electric push rod is started, the electric push rod drives a lower pressing plate to move downwards, when a contact plate contacts the magnetic core, the magnetic core generates a pushing force on the contact plate, the contact plate rotates with a rotating plate, when the contact plate rotates by a certain angle, the contact plate forms a certain block to the magnetic core, an extension plate contacts the top of the same magnetic core, when the electric push rod is reset, the rotating plate is subjected to resistance of a triangular block, and immediately loses the block to the magnetic core, after the magnetic core moves, the extension plate passes through the gap between the two magnetic cores, and temporary block to the rear magnetic core is completed, a reasonable gap is left between the magnetic cores, each magnetic core can be fully heated, and the magnetic performance and the consistency of the size precision of the whole batch of products are greatly improved.

Description

Technical Field

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

[0002] The manganese-zinc ferrite core sintering device is a special heat treatment equipment with a sealed atmosphere sintering furnace as the core, integrating zone constant temperature heating, precise nitrogen and oxygen atmosphere control, furnace airflow circulation, and fully automatic temperature control and forced cooling system. It is suitable for the entire process of manganese-zinc ferrite core debinding, high temperature crystallization and densification, and relies on the high temperature resistant fiber furnace lining to reduce heat loss. Among them, irregularly shaped and large-volume magnetic cores are affected by fixture wear and visual recognition errors. Some magnetic cores with special postures will experience positioning deviation. In addition, the loading station lacks a precise positioning structure, and the cores are placed randomly during manual loading. The magnetic cores will shift and stack during the transportation process. After the magnetic cores shift and stick together, they will block the contact surface and cannot receive heat from the furnace evenly. Temperature differences will occur in magnetic cores in different positions and even in different areas of the same magnetic core. This will lead to significant deviations in size and magnetic properties after sintering. Some products cannot meet the standards, affecting product consistency. In order to address the above problems, the following solutions are proposed. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a manganese-zinc ferrite core sintering device, including a support frame, a furnace body fixedly mounted on the side wall of the support frame, a conveyor belt sleeved on the top of the outer wall of the support frame, and a motor fixedly mounted on the outer wall of the support frame, and further including: The braking mechanism is fixedly installed on the outer wall of the bracket. The braking mechanism includes an electric push rod fixedly connected to the top of the inner wall of the bracket, and a lower pressure plate fixedly connected to the bottom of the outer wall of the electric push rod; The auxiliary mechanism is fixedly installed on the outer wall of the support. The auxiliary mechanism includes an L-shaped fixing plate fixedly connected to the top of the inner wall of the bracket, and a triangular block is slidably connected to the inner wall of the L-shaped fixing plate. The protection mechanism is slidably mounted on the outer wall of the braking mechanism.

[0004] Preferably, the braking mechanism includes: The lowering component is fixedly installed on the outer wall of the bracket. The follower component is fixedly mounted on the outer wall of the braking mechanism. Among them, the downward moving component comes into contact with the magnetic core during movement and moves downward synchronously with the following component.

[0005] Preferably, the auxiliary mechanism includes: A limiting component is fixedly installed on the outer wall of the bracket. The adaptive component is rotatably positioned on the outer wall of the lowering component. Among them, the adaptive component moves down synchronously with the moving component.

[0006] Preferably, the protection mechanism includes: The contact component is slidably disposed on the outer wall of the braking mechanism; When the contact component comes into contact with the magnetic core, the contact component moves again under the force.

[0007] Preferably, the lowering assembly includes a rotating plate rotatably connected to the inner wall of the lower pressure plate, and a contact plate slidably connected to the inner wall of the rotating plate; When the magnetic core begins to move under the action of the conveyor belt, the electric push rod is activated, which drives the lower pressure plate to move downward, and the rotating plate and contact plate follow suit.

[0008] Preferably, the following component includes a telescopic plate fixedly connected to the inner wall of the lower pressure plate, a spring fixedly connected to the top of the inner wall of the rotating plate, and a torsion spring sleeved on the inner wall of the rotating plate. The telescopic plate moves down synchronously with the lower pressure plate, and when the contact plate moves relative to the rotating plate, the contact plate exerts a pushing force on the spring. When the magnetic core exerts a pushing force on the contact plate, the contact plate and the rotating plate are subjected to force and rotate. When the contact plate rotates at a certain angle, it forms a certain obstruction to the magnetic core, and the telescopic plate comes into contact with the top of the same magnetic core and gradually retracts.

[0009] Preferably, the limiting component includes a spring piece fixedly connected to the side wall of the triangular block; When the rotating plate moves upward, it comes into contact with the triangular block and is resisted by the triangular block, causing the rotating plate to rotate again under the force. At this time, the contact plate immediately loses its obstruction to the magnetic core, allowing the magnetic core to move normally under the action of the conveyor belt. After the magnetic core moves, the telescopic plate loses the resistance of the magnetic core and instantly loses its contracted state. The extended telescopic plate passes through the gap between the two magnetic cores and completes the temporary obstruction of the magnetic core behind it.

[0010] Preferably, the adapting component includes a one-way plate rotatably connected to the side wall of the rotating plate, and a torsion spring is sleeved on the inner wall of the one-way plate; When the contact plate moves downward, if it is directly pushed by the magnetic core, the contact plate will rotate under the force. The rotating plate will follow the rotation and move downward continuously, making direct contact with the triangular block and being resisted by the triangular block. The one-way plate will rotate under the force. During the downward movement of the rotating plate, the triangular block will successfully pass through the one-way plate. When the rotating plate moves upward, the one-way plate will make contact with the inclined surface of the triangular block. Due to the restriction of the rotating plate, the one-way plate cannot rotate when it is resisted by the triangular block.

[0011] Preferably, the contact assembly includes a sliding rod slidably connected to the inner wall of the rotating plate, an L-shaped telescopic plate rotatably connected to the side wall of the telescopic plate, and a torsion spring II sleeved on the inner wall of the L-shaped telescopic plate. When the contact plate rotates and comes into contact with the magnetic core in front, the contact plate immediately rotates at the outer wall of the sliding rod. At this time, the contact plate does not exert any thrust on the magnetic core in front. When the telescopic plate moves down, it drives the L-shaped telescopic plate and the torsion spring to move down synchronously. When the telescopic plate moves up, the bottom of the L-shaped telescopic plate contacts the top of the magnetic core and generates a certain auxiliary force on the magnetic core.

[0012] A sintering process for a manganese-zinc ferrite core sintering apparatus includes the following steps: S1: Placing the magnetic core: The workers lay the magnetic cores flat on the surface of the conveyor belt one after another, and at the same time start the motor to move the conveyor belt. S2: Stable conveying: When the conveyor belt moves, it drives the magnetic core to move synchronously, so that the magnetic core gradually enters the furnace body for calcination; S3: Temperature-controlled sintering: After the magnetic core enters the furnace, the temperature is raised to remove the organic binder inside the blank, and then the temperature and oxygen are controlled to complete the grain growth and densification. Finally, the temperature is gradually lowered in a low-oxygen environment to form the core.

[0013] The present invention has the following beneficial effects: (1) When the magnetic core starts to move, the electric push rod is activated, which drives the lower pressure plate to move down. When the contact plate comes into contact with the magnetic core, the magnetic core generates a pushing force on the contact plate, causing the contact plate and the rotating plate to rotate. When the contact plate rotates at a certain angle, it forms a certain obstruction to the magnetic core. The telescopic plate comes into contact with the top of the same magnetic core. When the electric push rod is reset, the rotating plate is resisted by the triangular block and immediately loses its obstruction to the magnetic core. After the magnetic core moves, the telescopic plate passes through the gap between the two magnetic cores and completes the temporary obstruction of the magnetic core behind. Through the above components, a reasonable gap is left between the magnetic cores, so that each magnetic core can be fully heated, which greatly improves the consistency of the magnetic properties and dimensional accuracy of the whole batch of products.

[0014] (2) When the contact plate of the present invention moves downward, if it is directly pushed by the magnetic core, the one-way plate will contact the surface of the triangular block and be resisted by the triangular block, causing it to rotate. During the downward movement of the rotating plate, the triangular block successfully passes through the one-way plate. When the rotating plate moves upward, the one-way plate contacts the inclined surface of the triangular block. Due to the restriction of the rotating plate, the one-way plate cannot rotate when it is resisted by the triangular block. Through the above components, when the contact plate is directly pushed by the magnetic core and rotates, the top of the rotating plate can still pass through the triangular block, so that the rotating plate can be directly resisted by the triangular block during the subsequent reset process and complete the rotation.

[0015] (3) When the rotating plate of the present invention moves upward, it is resisted by the triangular block. When it rotates, the contact plate rotates synchronously and the sliding rod moves accordingly. When the contact plate rotates and comes into contact with the magnetic core in front, the contact plate immediately rotates at the outer wall of the sliding rod. At this time, the contact plate does not exert any thrust on the magnetic core in front. Through the above components, when the contact plate comes into contact with the magnetic core, it will immediately lose the thrust on the magnetic core, ensuring that the magnetic core always maintains a regular and upright arrangement, avoiding the problem of local under-burning and over-burning from the root, and ensuring the consistency of crystal phase generation.

[0016] (4) When the telescopic plate of the present invention moves down, it drives the L-shaped telescopic plate and the second torsion spring to move down synchronously. If the L-shaped telescopic plate comes into contact with the magnetic core during the downward movement, the L-shaped telescopic plate will be pushed by the magnetic core and begin to contract. The L-shaped telescopic plate will not generate any resistance to the magnetic core. When the telescopic plate moves up, the bottom of the L-shaped telescopic plate contacts the top of the magnetic core and generates a certain auxiliary force on the magnetic core. When the magnetic core generates a push on the L-shaped telescopic plate, the L-shaped telescopic plate rotates under force and generates pressure on the second torsion spring, causing it to be compressed. Through the above components, the magnetic core is always supported during the upward movement of the telescopic plate, preventing it from tilting due to uneven force and increasing the stability of the magnetic core. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 3 This is a schematic cross-sectional view of part of the structure of the present invention; Figure 4 This is a schematic cross-sectional view of the braking mechanism of the present invention; Figure 5 This is a schematic cross-sectional view of the limiting component of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic cross-sectional view of the contact component of the present invention; Figure 8 This is a cross-sectional schematic diagram of the protection mechanism of the present invention; Figure 9 This is a schematic diagram of the workflow of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Braking mechanism; 11. Lowering assembly; 12. Following assembly; 13. Support; 14. Furnace body; 15. Conveyor belt; 16. Motor; 111. Electric push rod; 112. Lower pressure plate; 113. Rotating plate; 114. Contact plate; 121. Telescopic plate; 122. Spring; 123. Torsion spring; 2. Auxiliary mechanism; 21. Limiting assembly; 22. Adapting assembly; 211. L-shaped fixing plate; 212. Triangular block; 213. Spring; 221. One-way plate; 222. Torsion spring one; 3. Protection mechanism; 31. Contact assembly; 311. Sliding rod; 312. L-shaped telescopic plate; 313. Torsion spring two. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, please refer to Figure 1 - Figure 5 This invention relates to a sintering device for manganese-zinc ferrite cores, comprising a support 13, a furnace body 14 fixedly mounted on the side wall of the support 13, a conveyor belt 15 sleeved on the top of the outer wall of the support 13, and a motor 16 fixedly mounted on the outer wall of the support 13. It also includes: Braking mechanism 1 is fixedly installed on the outer wall of bracket 13; The braking mechanism 1 includes an electric push rod 111 fixedly connected to the top of the inner wall of the bracket 13, and a lower pressure plate 112 fixedly connected to the bottom of the outer wall of the electric push rod 111. Auxiliary mechanism 2 is fixedly installed on the outer wall of bracket 13; The auxiliary mechanism 2 includes an L-shaped fixing plate 211 fixedly connected to the top of the inner wall of the bracket 13, and a triangular block 212 slidably connected to the inner wall of the L-shaped fixing plate 211. The protection mechanism 3 is slidably installed on the outer wall of the braking mechanism 1.

[0022] Braking mechanism 1 includes: The downward moving component 11 is fixedly installed on the outer wall of the bracket 13; Follower component 12 is fixedly mounted on the outer wall of braking mechanism 1; In this process, the staff moves the magnetic cores that need to be calcined onto the surface of the conveyor belt 15 using the equipment. At this time, the motor 16 and the furnace body 14 are started. The motor 16 drives the conveyor belt 15 to start moving. Under the movement of the conveyor belt 15, the magnetic cores gradually approach the furnace body 14 and enter the furnace body 14. Under the action of the furnace body 14, several magnetic cores are fully calcined. The calcined magnetic cores enter the next process. When the magnetic cores start to move under the action of the conveyor belt 15, the lowering component 11 is activated. The lowering component 11 contacts the magnetic cores during movement and moves down synchronously with the following component 12.

[0023] Auxiliary mechanism 2 includes: Limiting component 21 is fixedly installed on the outer wall of bracket 13; Adaptive component 22 is rotatably disposed on the outer wall of the lowering component 11; When the lowering component 11 is reset, it comes into contact with the limiting component 21 and is resisted by the limiting component 21. The adapting component 22 moves down synchronously with the lowering component 11.

[0024] Protection agency 3 includes: Contact component 31 is slidably disposed on the outer wall of braking mechanism 1; When the downward moving component 11 moves, the contact component 31 moves synchronously, and when the contact component 31 comes into contact with the magnetic core, the contact component 31 is subjected to force and moves again.

[0025] Example 2, please refer to Figure 4 - Figure 9 The present invention is a manganese zinc ferrite core sintering device. Based on the first embodiment, the lowering component 11 includes a rotating plate 113 rotatably connected to the inner wall of the lower pressure plate 112, and a contact plate 114 slidably connected to the inner wall of the rotating plate 113. When the magnetic core begins to move under the action of the conveyor belt 15, the electric push rod 111 is activated, which drives the lower pressure plate 112 to move downward. The rotating plate 113 and the contact plate 114 follow the downward movement. During the downward movement, when the contact plate 114 comes into contact with the magnetic core, the contact plate 114 is resisted by the magnetic core, which forces the contact plate 114 to move relative to the rotating plate 113.

[0026] The following component 12 includes a telescopic plate 121 fixedly connected to the inner wall of the lower pressure plate 112, a spring 122 fixedly connected to the top of the inner wall of the rotating plate 113, and a torsion spring 123 sleeved on the inner wall of the rotating plate 113. In this process, the telescopic plate 121 moves downward synchronously with the lower pressure plate 112, and when the contact plate 114 moves relative to the rotating plate 113, the contact plate 114 exerts a pushing force on the spring 122, causing the spring 122 to be compressed and accumulate potential energy. At this time, the contact plate 114 does not affect the normal movement of the magnetic core. When the magnetic core is not in contact with the contact plate 114 under the action of the conveyor belt 15, the contact plate 114 moves downward relative to the rotating plate 113 under the action of the spring 122. At this time, the contact plate 114 comes into contact with the magnetic core moving behind it, and as the magnetic core moves, the magnetic core exerts a pushing force on the contact plate 114, causing the contact plate 114 and the rotating plate 113 to rotate under the force. The rotating plate 113... During rotation, pressure is applied to the torsion spring 123, causing it to compress and accumulate potential energy. When the contact plate 114 rotates to a certain angle, due to the elastic force of the torsion spring 123, the magnetic core cannot exert a pushing force on the contact plate 114, and the contact plate 114 forms a certain obstruction to the magnetic core. Since the contact surface between the contact plate 114 and the magnetic core has an arc-shaped structure, the magnetic core contacts the arc surface of the contact plate 114 under the action of the conveyor belt 15, causing the magnetic core to move to the center position of the contact plate 114 under the action of its arc surface. Meanwhile, the telescopic plate 121 contacts the top of the same magnetic core and gradually contracts. When there is a certain gap between the front and rear magnetic cores, the lower pressure plate 112 begins to move upward under the action of the electric push rod 111, and the rotating plate 113 follows suit.

[0027] The limiting component 21 includes a spring piece 213 fixedly connected to the side wall of the triangular block 212; When the rotating plate 113 moves upward, the top of its outer wall contacts the triangular block 212 and is resisted by the triangular block 212. As the lower pressure plate 112 continues to move upward, the rotating plate 113 is subjected to force and rotates again, compressing the torsion spring 123. At this time, the contact plate 114 immediately loses its obstruction to the magnetic core, allowing the magnetic core to move normally under the action of the conveyor belt 15. After the magnetic core moves, the telescopic plate 121 loses the resistance of the magnetic core and instantly loses its contracted state, while the extended plate... The shrink plate 121 briefly blocks the rear magnetic core through the gap between the two magnetic cores. As the lower pressure plate 112 moves upward, when the rotating plate 113 rotates to a certain angle and reaches the maximum elastic value of the torsion spring 123, the rotating plate 113 pushes the triangular block 212 through the inclined surface of the triangular block 212, causing the triangular block 212 to move under force and exert pressure on the spring piece 213, compressing it. At this time, the rotating plate 113 passes the triangular block 212 and completes the reset under the action of the torsion spring 123.

[0028] The adaptation component 22 includes a one-way plate 221 rotatably connected to the side wall of the rotating plate 113, and a torsion spring 222 is sleeved on the inner wall of the one-way plate 221. When the contact plate 114 moves downward, if it is directly pushed by the magnetic core, the contact plate 114 will rotate under the force, and the rotating plate 113 will rotate accordingly. As the rotating plate 113 rotates, it continuously moves downward and comes into direct contact with the triangular block 212. At this time, the one-way plate 221 contacts the surface of the triangular block 212 and is subjected to the resistance of the triangular block 212. Figure 6 As shown, the one-way plate 221 rotates under force. When the one-way plate 221 rotates, it exerts pressure on the torsion spring 222, causing the torsion spring 222 to be compressed and accumulate potential energy. During the downward movement of the rotating plate 113, the triangular block 212 successfully passes through the one-way plate 221. Under the elastic force of the torsion spring 222, the one-way plate 221 completes its reset. When the rotating plate 113 moves upward, the one-way plate 221 contacts the inclined surface of the triangular block 212. Due to the restriction of the protrusion at point F of the rotating plate 113, the one-way plate 221 cannot rotate when it is resisted by the triangular block 212, causing the rotating plate 113 to rotate again under force, thus immediately completing the release of the magnetic core.

[0029] The contact component 31 includes a sliding rod 311 slidably connected to the inner wall of the rotating plate 113, an L-shaped telescopic plate 312 rotatably connected to the side wall of the telescopic plate 121, and a torsion spring 313 sleeved on the inner wall of the L-shaped telescopic plate 312. When the rotating plate 113 moves upward, it is resisted by the triangular block 212. During rotation, the contact plate 114 rotates synchronously, and the sliding rod 311 moves accordingly. When the contact plate 114 rotates and comes into contact with the magnetic core in front, the contact plate 114 immediately rotates at the outer wall of the sliding rod 311. At this time, the contact plate 114 does not exert any pushing force on the magnetic core in front. However, when the contact plate 114 initially experiences the pushing force from the magnetic core, such as... Figure 7 As shown, under the resistance of the baffle at point G of the rotating plate 113, the contact plate 114 drives the rotating plate 113 to rotate synchronously. The contact plate 114 will not rotate independently. When the telescopic plate 121 moves down, it drives the L-shaped telescopic plate 312 and the second torsion spring 313 to move down synchronously. If the L-shaped telescopic plate 312 comes into contact with the magnetic core during its downward movement, it will be pushed by the magnetic core and begin to contract. The L-shaped telescopic plate 312 will not generate any resistance to the magnetic core. When the telescopic plate 121 moves up, the bottom of the L-shaped telescopic plate 312 contacts the top of the magnetic core and generates a certain auxiliary force on the magnetic core. When the magnetic core generates a pushing force on the L-shaped telescopic plate 312, the L-shaped telescopic plate 312 rotates under force and exerts pressure on the second torsion spring 313, causing it to be compressed.

[0030] A sintering process for a manganese-zinc ferrite core sintering apparatus includes the following steps: S1: Placing the magnetic core: The staff lays the magnetic core flat on the surface of the conveyor belt 15 one after another, and at the same time starts the motor 16 to move the conveyor belt 15. S2: Stable conveying: When the conveyor belt 15 moves, it drives the magnetic core to move synchronously, so that the magnetic core gradually enters the furnace body 14 for calcination; S3: Temperature-controlled sintering: After the magnetic core enters the furnace body 14, the temperature is raised to remove the organic binder inside the blank, and then the temperature and oxygen are controlled to complete the grain growth and densification. Finally, the temperature is gradually lowered in a low-oxygen environment to form the blank.

[0031] One specific application of this embodiment is as follows: The operator moves the magnetic cores that need to be calcined to the surface of the conveyor belt 15 through the equipment. At this time, the motor 16 and the furnace body 14 are started. The motor 16 drives the conveyor belt 15 to start moving. Under the movement of the conveyor belt 15, the magnetic cores gradually approach the furnace body 14 and enter the furnace body 14. Under the action of the furnace body 14, several magnetic cores are fully calcined. The calcined magnetic cores enter the next process.

[0032] For irregularly shaped, large-volume magnetic cores, due to fixture wear and visual recognition errors, some cores with special orientations may experience positioning misalignment. Furthermore, the loading station lacks a precise positioning structure, leading to haphazard placement during manual loading. This causes the cores to shift during transport, resulting in them pressing against each other and obstructing the contact surface, hindering uniform heat absorption within the furnace. Temperature differences occur between cores in different locations, and even between different areas of the same core, leading to significant deviations in dimensional and magnetic properties after sintering. This results in some products failing to meet standards and affecting product consistency. When the magnetic core begins to move under the action of the conveyor belt 15, the electric actuator 111 is activated. The electric actuator 111 drives the lower pressure plate 112 to move downwards, and the rotating plate 113 and contact plate 114 follow suit. During the downward movement of the contact plate 114, when the contact... When plate 114 contacts the magnetic core, the contact plate 114 is resisted by the magnetic core, forcing it to move relative to the rotating plate 113. The telescopic plate 121 moves downwards synchronously with the pressing plate 112. As the contact plate 114 moves relative to the rotating plate 113, it exerts a pushing force on the spring 122, causing the spring 122 to compress and accumulate potential energy. At this time, the contact plate 114 does not affect the normal movement of the magnetic core. When the magnetic core is not in contact with the contact plate 114 under the action of the conveyor belt 15, the contact plate 114 moves downwards relative to the rotating plate 113 under the action of the spring 122. At this time, the contact plate 114 contacts the moving magnetic core behind it, and as the magnetic core moves, it exerts a pushing force on the contact plate 114. The force causes the contact plate 114 and the rotating plate 113 to rotate. As the rotating plate 113 rotates, it exerts pressure on the torsion spring 123, compressing it and accumulating potential energy. When the contact plate 114 rotates to a certain angle, due to the elastic force of the torsion spring 123, the magnetic core cannot exert a pushing force on the contact plate 114, thus the contact plate 114 provides some resistance to the magnetic core. Because the contact surface between the contact plate 114 and the magnetic core has an arc-shaped structure, the magnetic core contacts the arc surface of the contact plate 114 under the action of the conveyor belt 15, causing the magnetic core to move to the center position of the contact plate 114 under the action of its arc surface. Meanwhile, the telescopic plate 121 contacts the top of the same magnetic core and gradually retracts. When there is a certain gap between the two magnetic cores, the lower pressure plate 112, under the action of the electric push rod 111... As the lower pressure plate 112 moves upward, the rotating plate 113 follows suit. During this upward movement, the top of the outer wall of the rotating plate 113 contacts the triangular block 212 and experiences resistance from it. With the continued upward movement of the lower pressure plate 112, the rotating plate 113 is forced to rotate again, compressing the torsion spring 123. At this point, the contact plate 114 immediately loses its obstruction of the magnetic core, allowing the magnetic core to move normally under the action of the conveyor belt 15. After the magnetic core moves, the telescopic plate 121 loses the resistance of the magnetic core and instantly loses its retracted state. The extended telescopic plate 121 then passes through the gap between the two magnetic cores, temporarily obstructing the rear magnetic core. As the lower pressure plate 112 moves upward, when the rotating plate 113 rotates to a certain angle, reaching the maximum elastic value of the torsion spring 123...The rotating plate 113 exerts a pushing force on the triangular block 212 via its inclined surface, causing the triangular block 212 to move under the force and exert pressure on the spring 213, compressing it. At this point, the rotating plate 113 passes the triangular block 212 and, under the action of the torsion spring 123, completes its reset. Through this assembly, a reasonable gap is maintained between the magnetic cores, allowing each core to be fully heated, preventing localized temperature differences, ensuring sufficient sintering, and significantly improving the consistency of the magnetic properties and dimensional accuracy of the entire batch of products.

[0033] Taking advantage of the downward movement of the contact plate 114, if the contact plate 114 is directly pushed by the magnetic core during its downward movement, the contact plate 114 will rotate under the force, and the rotating plate 113 will follow suit. As the rotating plate 113 rotates, it continuously moves downward and comes into direct contact with the triangular block 212. At this time, the one-way plate 221 contacts the surface of the triangular block 212 and experiences resistance from the triangular block 212. Figure 6 As shown, the one-way plate 221 rotates under force. When the one-way plate 221 rotates, it exerts pressure on the torsion spring 222, causing the torsion spring 222 to compress and accumulate potential energy. During the downward movement of the rotating plate 113, the triangular block 212 successfully passes through the one-way plate 221. Under the elastic force of the torsion spring 222, the one-way plate 221 returns to its original position. When the rotating plate 113 moves upward, the one-way plate 221 contacts the inclined surface of the triangular block 212. Due to the restriction of the protrusion at point F of the rotating plate 113, the one-way plate 221 cannot rotate when resisted by the triangular block 212, causing the rotating plate 113 to rotate again under force, thus immediately releasing the magnetic core. When the contact plate 114 moves downward, its bottom does not contact the magnetic core but is directly pushed by the magnetic core, causing it to rotate. At this time, the top of the rotating plate 113 is still above the triangular block 212. During the subsequent reset process, the rotating plate 113 cannot be resisted by the triangular block 212, preventing it from rotating and thus failing to create an effective distance between the magnetic cores. With the above-mentioned components, when the contact plate 114 is directly pushed by the magnetic core and rotates, the top of the rotating plate 113 can still pass through the triangular block 212, allowing the rotating plate 113 to be directly resisted by the triangular block 212 during the subsequent reset process, thus completing the rotation.

[0034] Utilizing the upward movement characteristic of the rotating plate 113, the rotating plate 113 experiences resistance from the triangular block 212 during its upward movement. When it rotates, the contact plate 114 rotates synchronously, and the sliding rod 311 moves accordingly. During the rotation of the contact plate 114, when it contacts the magnetic core in front, the contact plate 114 immediately rotates at the outer wall of the sliding rod 311. At this time, the contact plate 114 does not exert any thrust on the magnetic core in front. However, when the contact plate 114 initially experiences the thrust of the magnetic core, such as... Figure 7As shown, under the resistance of the baffle at point G of the rotating plate 113, the contact plate 114 drives the rotating plate 113 to rotate synchronously. The contact plate 114 will not rotate independently. If the magnetic core itself has a high center of gravity and a small supporting base area, if the contact plate 114 comes into contact with the magnetic core in front during rapid rotation, it will generate a pushing force on the magnetic core. This pushing force can easily exceed the static friction threshold between the bottom of the magnetic core and the conveyor belt 15, causing it to tilt directly. This disrupts the originally orderly arrangement, and local areas will experience heat shielding, resulting in large differences in the heating rate of different parts during the calcination process, affecting the uniform generation of the crystal phase inside the magnetic core. Through the above components, when the contact plate 114 comes into contact with the magnetic core, it will immediately lose the pushing force on the magnetic core, ensuring that the magnetic core always maintains an orderly and upright arrangement, fundamentally avoiding the problems of local under-burning and over-burning, and ensuring the consistency of crystal phase generation.

[0035] Utilizing the downward movement characteristic of the aforementioned telescopic plate 121, when the telescopic plate 121 moves downward, it drives the L-shaped telescopic plate 312 and the torsion spring 313 to move downward synchronously. During the downward movement of the L-shaped telescopic plate 312, if it comes into contact with the magnetic core, the L-shaped telescopic plate 312 is pushed by the magnetic core and begins to contract. The L-shaped telescopic plate 312 does not generate any resistance to the magnetic core. Furthermore, when the telescopic plate 121 moves upward, the bottom of the L-shaped telescopic plate 312 contacts the top of the magnetic core, generating a certain auxiliary force on the magnetic core. This causes the L-shaped telescopic plate 312 to rotate under the force when the magnetic core exerts a pushing force on it, and also affects the torsion spring 313. Spring 313 generates pressure, causing the magnetic core to be compressed. Due to the adhesion of the bottom of the magnetic core, when the bottom of the telescopic plate 121 contacts the magnetic core, as the telescopic plate 121 moves upward, the telescopic plate 121 continuously generates resistance to the magnetic core, and the conveyor belt 15 continuously generates thrust on the magnetic core. When the telescopic plate 121 gradually contacts the top of the magnetic core, the magnetic core will tilt due to uneven force, or even fall over directly, causing the heated surface of the magnetic core to be blocked. Through the above components, the telescopic plate 121 always generates a supporting force on the magnetic core during the upward movement, preventing it from tilting due to uneven force and increasing the stability of the magnetic core.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A manganese-zinc ferrite core sintering device, comprising a support (13), a furnace body (14) fixedly disposed on the side wall of the support (13), a conveyor belt (15) sleeved on the top of the outer wall of the support (13), and a motor (16) fixedly disposed on the outer wall of the support (13), characterized in that, Also includes: Braking mechanism (1), the braking mechanism (1) is fixedly installed on the outer wall of the bracket (13); The braking mechanism (1) includes an electric push rod (111) fixedly connected to the top of the inner wall of the bracket (13), and a lower pressure plate (112) is fixedly connected to the bottom of the outer wall of the electric push rod (111). Auxiliary mechanism (2), which is fixedly installed on the outer wall of the bracket (13); The auxiliary mechanism (2) includes an L-shaped fixing plate (211) fixedly connected to the top of the inner wall of the bracket (13), and a triangular block (212) is slidably connected to the inner wall of the L-shaped fixing plate (211). The protection mechanism (3) is slidably disposed on the outer wall of the braking mechanism (1).

2. The sintering apparatus for manganese-zinc ferrite cores according to claim 1, characterized in that: The braking mechanism (1) includes: The lowering component (11) is fixedly disposed on the outer wall of the bracket (13); Follower assembly (12), which is fixedly disposed on the outer wall of the braking mechanism (1); When the magnetic core begins to move under the action of the conveyor belt (15), the downward moving component (11) is activated.

3. The sintering apparatus for manganese-zinc ferrite cores according to claim 2, characterized in that: The auxiliary mechanism (2) includes: Limiting component (21), the limiting component (21) is fixedly installed on the outer wall of the bracket (13); An adaptation component (22) is rotatably disposed on the outer wall of the lowering component (11); When the downward component (11) is reset, it comes into contact with the limiting component (21).

4. The manganese-zinc ferrite core sintering apparatus according to claim 3, characterized in that: The protection mechanism (3) includes: Contact component (31), which is slidably disposed on the outer wall of the braking mechanism (1); When the downward component (11) moves, the contact component (31) moves synchronously.

5. The manganese-zinc ferrite core sintering apparatus according to claim 4, characterized in that: The lowering assembly (11) includes a rotating plate (113) rotatably connected to the inner wall of the lower pressure plate (112), and a contact plate (114) is slidably connected to the inner wall of the rotating plate (113). The lower pressure plate (112) is slidably connected to the inner wall side of the bracket (13).

6. The manganese-zinc ferrite core sintering apparatus according to claim 5, characterized in that: The following assembly (12) includes a telescopic plate (121) fixedly connected to the inner wall of the lower pressure plate (112), a spring (122) fixedly connected to the top of the inner wall of the rotating plate (113), and a torsion spring (123) sleeved on the inner wall of the rotating plate (113). The bottom of the outer wall of the spring (122) contacts the top of the outer wall of the contact plate (114), and the two ends of the outer wall of the torsion spring (123) are fixedly connected to the inner wall of the pressure plate (112).

7. The sintering apparatus for manganese-zinc ferrite cores according to claim 6, characterized in that: The limiting component (21) includes a spring piece (213) fixedly connected to the side wall of the triangular block (212). The end of the spring piece (213) away from the triangular block (212) is fixedly connected to the inner wall of the L-shaped fixing plate (211), and the elastic potential energy of the spring piece (213) is greater than that of the torsion spring (123).

8. The sintering apparatus for manganese-zinc ferrite cores according to claim 6, characterized in that: The adaptation component (22) includes a one-way plate (221) rotatably connected to the side wall of the rotating plate (113), and a torsion spring (222) is sleeved on the inner wall of the one-way plate (221). Among them, the elastic potential energy of the first torsion spring (222) is less than that of the torsion spring (123), and the two ends of the outer wall of the first torsion spring (222) are fixedly connected to the outer wall of the rotating plate (113).

9. The sintering apparatus for manganese-zinc ferrite cores according to claim 6, characterized in that: The contact assembly (31) includes a sliding rod (311) slidably connected to the inner wall of the rotating plate (113), and an L-shaped telescopic plate (312) rotatably connected to the side wall of the telescopic plate (121), and a torsion spring (313) is sleeved on the inner wall of the L-shaped telescopic plate (312). The sliding rod (311) is rotatably connected to a contact plate (114) on its outer wall, and the two ends of the outer wall of the second torsion spring (313) are fixedly connected to the outer wall of the telescopic plate (121).

10. A sintering process for a manganese-zinc ferrite core sintering apparatus, employing the manganese-zinc ferrite core sintering apparatus as described in claim 9, characterized in that: Includes the following steps, S1: Placing the magnetic core: The staff lays the magnetic core flat on the surface of the conveyor belt (15) one after another, and starts the motor (16) at the same time to move the conveyor belt (15); S2: Stable conveying: When the conveyor belt (15) moves, it drives the magnetic core to move synchronously, so that the magnetic core gradually enters the furnace body (14) for calcination; S3: Temperature-controlled sintering: After the magnetic core enters the furnace body (14), the temperature is raised to remove the organic binder inside the blank, and then the temperature and oxygen are controlled to complete the grain growth and densification. Finally, the low-oxygen environment is gradually cooled down to form the blank.

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