Rotary magnetic core heat treatment furnace

Abstract

A rotary type magnetic core heat treatment furnace comprises a furnace chamber, the furnace chamber is a circular chamber, a furnace door capable of being opened and closed is installed on the side wall of the circular furnace chamber, a bearing table is installed in the circular chamber, the bearing table is rotationally arranged and connected with a rotation driving mechanism, an air inlet pipe and an exhaust pipe are connected to the furnace chamber, and the air inlet pipe is connected with the exhaust pipe. The air inlet pipe is connected with an electric heating cavity, the electric heating cavity is connected to an air outlet of the fan, and the exhaust pipe is connected to an air inlet of the fan. The heating furnace is uniform in temperature, and the processed magnetic core is good in performance consistency.

Description

Technical Field

[0001] The utility model relates to amorphous magnetic core production equipment, in particular to a rotary magnetic core heat treatment furnace, belonging to the technical field of equipment. Background Art

[0002] In the production process of amorphous magnetic cores, the magnetic cores need to be heat treated. The heat treatment uses a heat treatment furnace (also called a sintering furnace). The current sintering furnaces are tunnel type and vertical type. The tunnel type is a tunnel type magnetic core sintering furnace disclosed in Chinese Patent Application No. 2012205863155, and a magnetic core heat treatment furnace described in Chinese Patent Application No. 2022105924354. The vertical type is a magnetic core sintering furnace disclosed in Chinese Patent Application No. 2021213679410. The above-mentioned sintering furnaces currently use electric heating, and their heating elements are fixed. When using this type of heating furnace to treat the magnetic core It was found that the performance of the magnetic cores far away from the heating source and those close to the heating source were significantly different and the consistency was poor. For example, when the performance of the magnetic core close to the heating source was better, if the temperature was increased by a few degrees, the performance of the magnetic core far away from the heating source would become better, but the performance of the magnetic core close to the heating source would decrease. Analysis showed that this was caused by uneven stability distribution. It is also a consensus in the industry that uneven temperature distribution leads to inconsistent core performance, but there are different solutions on how to solve it. The above-mentioned patent application also uses a mobile magnetic core to overcome this problem, but these solutions are more complicated and there is also the problem of uneven distance from the heating source. Summary of the invention

[0003] The utility model aims to overcome the above problems existing in the current magnetic core heat treatment furnace and provides a rotary magnetic core heat treatment furnace.

[0004] To achieve the purpose of the utility model, the following technical scheme is adopted: a rotary magnetic core heat treatment furnace, comprising a furnace chamber, which is a circular chamber, a furnace door that can be opened and closed is installed on the side wall of the circular furnace chamber, a bearing platform is installed in the circular chamber, the bearing platform is rotatably arranged, the bearing platform is connected to a rotating drive mechanism, an air inlet pipe and an exhaust pipe are connected to the furnace chamber, the air inlet pipe is connected to an electric heating chamber, the electric heating chamber is connected to the air outlet of the fan, and the exhaust pipe is connected to the air inlet of the fan.

[0005] Furthermore, the support platform is provided with a plurality of through holes.

[0006] Furthermore, the multiple through holes are located on a circle with the rotating axis of the supporting platform as the center, and a blade inclined downward is integrally connected to a radial edge of the through hole, and the inclination of the blades on all the through holes is consistent.

[0007] Furthermore, the air inlet pipe is connected to the top surface of the circular cavity, and the air exhaust pipe is connected to the bottom surface of the circular cavity.

[0008] Furthermore, the exhaust pipe is composed of two branches, which are connected to the air inlet of the fan after merging into a main pipe. Four vertical branches are connected to the bottom surface of the circular cavity, and two vertical branches are connected to one branch.

[0009] Furthermore, there are two furnace doors, which are 180 degrees apart.

[0010] The positive and beneficial technical effects of the utility model are: the temperature of the heating furnace is uniform, and the performance consistency of the treated magnetic core is good, which is specifically described in conjunction with the positive and beneficial technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is one of the schematic diagrams of the utility model without a fan.

[0012] Figure 2 This is one of the schematic diagrams of the carrier platform.

[0013] Figure 3 This is the second schematic diagram of the carrier platform. DETAILED DESCRIPTION

[0014] In order to more fully explain the implementation of the utility model, the implementation examples of the utility model are provided. These implementation examples are only for the purpose of explaining the process and do not limit the scope of the utility model. The utility model is illustrated by the following embodiments, but is not limited to the following embodiments. Any variation of the implementation is included in the technical scope of the utility model.

[0015] The marks in the attached drawings are: 1: circular cavity; 2: air inlet pipe; 3: electric heating cavity; 4: air outlet pipe of the fan; 5: main pipeline; 6: branch A; 7: branch B; 8: vertical branch pipe A; 9: vertical branch pipe B; 10: supporting platform; 11: through hole; 12: blade.

[0016] As shown in the accompanying drawings, a rotary magnetic core heat treatment furnace includes a furnace chamber, which is a circular chamber 1. A closable furnace door 13 is installed on the side wall of the circular furnace chamber. There are two furnace doors 13, and the two furnace doors are 180 degrees apart.

[0017] A supporting platform 10 is installed in the circular cavity. The supporting platform is provided with a plurality of through holes 11. The plurality of through holes are located on a circle with the rotating axis of the supporting platform as the center. A blade 12 inclined downward is integrally connected to a radial edge of the through hole. The inclination of the blades on all the through holes is consistent. When the supporting platform rotates, the blades play a role in guiding the gas, so that the temperature in the furnace can be more uniform.

[0018] The support platform is rotatably arranged, and the support platform is connected to a rotation driving mechanism, and the support platform can be driven to rotate in the following manner: the support platform is fixedly connected to the main shaft, the main shaft is rotatably mounted on the bottom surface of the circular cavity, the lower end of the main shaft extends out of the circular cavity, and the main shaft is driven by a motor.

[0019] An air inlet pipe 2 and an exhaust pipe are connected to the furnace cavity. The air inlet pipe is connected to the top surface of the circular cavity. The air inlet pipe is connected to the electric heating cavity 3. The electric heating cavity 3 is connected to the air outlet of the fan. 4 in the figure shows the air outlet of the fan. The fan is not shown in the figure. The exhaust pipe is connected to the air inlet of the fan. The exhaust pipe is two branches, which are branch A6 and branch B7. The two branches are connected to the air inlet of the fan after merging into a main pipe furnace 5. The main pipe furnace 5 is connected to the air inlet of the fan. Four vertical branches are connected to the bottom surface of the circular cavity. Two vertical branches are connected to one branch. The two vertical branches shown in the vertical branch pipe A in the figure are connected to branch A, and the two vertical branches shown in the vertical branch pipe B are connected to branch B. The four branches can make the gas in the cavity flow evenly and ensure consistent temperature.

[0020] When the heat treatment furnace is used, the magnetic core is placed on the carrier, the furnace door is closed, and the electric heating chamber is used for heating. The fan circulates and heats the hot air into the circular chamber to heat treat the magnetic core on the carrier.

[0021] After describing the implementation mode of the utility model in detail, people familiar with the technology can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent application. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the scope of the technical solution of the utility model, and the utility model is not limited to the implementation mode of the examples given in the specification.

Claims

1. A rotary magnetic core heat treatment furnace, comprising a furnace chamber, characterized in that: The furnace cavity is a circular cavity, and an openable and closable furnace door is installed on the side wall of the circular cavity. A supporting platform is installed in the circular cavity. The supporting platform is rotatably arranged, and the supporting platform is connected to a rotating drive mechanism. An air inlet pipe and an exhaust pipe are connected to the furnace cavity, and the air inlet pipe is connected to an electric heating cavity. The electric heating cavity is connected to the air outlet of the fan, and the exhaust pipe is connected to the air inlet of the fan.

2. The rotary magnetic core heat treatment furnace according to claim 1, characterized in that: The bearing platform is provided with a plurality of through holes.

3. The rotary magnetic core heat treatment furnace according to claim 2, characterized in that: The multiple through holes are located on a circle with the rotating shaft of the supporting platform as the center, and a blade inclined downward is integrally connected to a radial edge of the through hole, and the inclination of the blades on all the through holes is consistent.

4. The rotary magnetic core heat treatment furnace according to claim 1, characterized in that: The air inlet pipe is connected to the top surface of the circular cavity, and the air exhaust pipe is connected to the bottom surface of the circular cavity.

5. The rotary magnetic core heat treatment furnace according to claim 4, characterized in that: The exhaust pipe is composed of two branches, which are connected to the air inlet of the fan after merging into a main pipe. Four vertical branches are connected to the bottom surface of the circular cavity, and one branch is connected to two vertical branches.

6. The rotary magnetic core heat treatment furnace according to claim 1, characterized in that: There are two furnace doors, which are 180 degrees apart.

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