Temperature uniformity adjusting device for heat treatment furnace

Abstract

The application relates to a temperature uniformity adjusting device of a heat treatment furnace, and relates to the technical field of heat treatment furnace equipment, which comprises a support, a top cover fixedly connected to the top of the support, a furnace body fixedly connected to the inside of the support, a heating mechanism arranged in the inside of the furnace body, a circulating mechanism arranged on the top of the top cover, an adjusting mechanism arranged on the outside of the support, the heating mechanism comprising an inner temperature layer, the inside of the inner temperature layer being fixedly connected to the inside of the furnace body, the inside of the inner temperature layer being fixedly connected with sliding rails, the outside of the sliding rails being slidingly connected with supporting plates, the inside of the supporting plates being provided with temperature transmission grooves, and the inside of the inner temperature layer being fixedly connected with a fixed plate. The heating pipe is fixed in the inside of the inner temperature layer through the fixed plate, so that when more workpieces are subjected to heat treatment, the quality defects of some workpieces caused by local overheating or insufficient heating can be reduced, and the machining precision and product qualification rate are improved.

Description

Technical Field

[0001] This application relates to heat treatment furnace equipment, and more particularly to a heat treatment furnace temperature uniform regulation device. Background Technology

[0002] Heat treatment is a key process in fields such as machinery manufacturing, aerospace, and automotive industries. By heating, holding, and cooling workpieces, it optimizes material properties (such as hardness, wear resistance, and toughness). As a core piece of equipment, the temperature uniformity of the heat treatment furnace directly affects the consistency and stability of workpiece quality.

[0003] A search revealed Chinese Patent Publication No. CN216445430U, which discloses a uniform heating device for a heat treatment furnace. The device includes a furnace with a furnace cover on top and a lifting bracket fixedly connected to the bottom of the cover. A positioning seat is located inside the furnace, and a rotating frame is fixedly connected to the top of the positioning seat. Ventilation slots are provided on the sides of the rotating frame, and multiple sets of electric heating blocks are evenly installed on the inner side of the rotating frame. A drive shaft is fixedly connected to the bottom of the positioning seat, and a motor is connected to the bottom of the drive shaft. An air inlet box is located outside the furnace, and a fan is connected to the top of the air inlet box. The fan's outlet is connected to the upper inner cavity of the furnace via an air inlet pipe, and the other end of the air inlet box is connected to the lower inner cavity of the furnace via an air outlet pipe. This invention features a scientifically designed and reasonable structure, is simple and convenient to use, and can uniformly heat workpieces, thus improving workpiece quality.

[0004] The aforementioned patent specification mentions that "this type of heat treatment furnace uses a uniform heating device with a simple and reasonable structural design and strong practicality. By setting an electric motor, it can continuously drive the rotating frame to rotate, ensuring the heat radiation effect of the electric heating block. This allows the workpiece inside the rotating frame to be heated more fully and evenly, significantly improving the heat treatment effect and ensuring the forging quality of the workpiece. By setting a fan, air inlet pipe, and air outlet pipe, the airflow returns to the inner cavity through the air inlet box and fan, ensuring that the gas inside the furnace cavity is always circulating, improving the heating rate of the forgings and the uniformity of the furnace temperature." While the above content can make the workpiece heat-treated more fully and evenly, it is difficult to heat-treat a large number of identical workpieces. Furthermore, when there are many workpieces, some workpieces are prone to quality defects due to local overheating or insufficient heating. Therefore, a heat treatment furnace temperature uniform adjustment device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a heat treatment furnace temperature uniformity adjustment device, which aims to improve the quality defects caused by local overheating or insufficient heating of some workpieces when heat treating a large number of workpieces.

[0006] The temperature uniformity adjustment device for a heat treatment furnace provided in this application adopts the following technical solution: A temperature uniformity adjustment device for a heat treatment furnace includes a support frame, a top cover fixedly connected to the top of the support frame, a furnace body fixedly connected inside the support frame, a heating mechanism disposed inside the furnace body, a circulation mechanism disposed on the top of the top cover, and an adjustment mechanism disposed outside the support frame. The heating mechanism includes an inner temperature layer, the outer side of which is fixedly connected to the inside of the furnace body. A slide rail is fixedly connected inside the inner temperature layer, a support plate is slidably connected to the outer side of the slide rail, a temperature permeation groove is formed inside the support plate, a fixing plate is fixedly connected inside the inner temperature layer, a heating tube is fixedly connected inside the fixing plate, the outer side of the fixing plate is supported inside the support plate, an installation assembly is formed inside the furnace body, and a sealing assembly is fixedly connected to the outer side of the furnace body. Through the above technical solution: In this heat treatment furnace temperature uniform adjustment device, the top cover of the support and the furnace body inside the support together form the main frame. The inner temperature layer of the heating mechanism is fixed inside the furnace body. The slide rail inside the inner temperature layer allows the support plate to slide. The support plate has a heat-permeable groove. The fixing plate is fixed inside the inner temperature layer. The heating tube fixed on it heats the furnace. The fixing plate is supported inside the support plate.

[0007] Preferably, the adjustment mechanism includes a temperature controller, which is externally mounted on the outside of the furnace body. An adjustment line is fixedly connected to the output end of the temperature controller. A sensor is fixedly connected to the top of the top cover. A support tube is fixedly connected to the output end of the sensor. A temperature sensor is fixedly connected to the outside of the support tube. The above technical solution involves a temperature sensor installed at the sensor output end on the top of the cover via a support tube. This sensor detects the temperature inside the furnace. Once the temperature sensor detects the temperature data, it transmits the data to the sensor. The temperature controller is installed outside the furnace body, and its output end is connected to an adjustment line that receives the temperature information transmitted by the sensor. Based on the received data, the temperature controller adjusts the heating mechanism and other components via the adjustment line.

[0008] Preferably, the circulation mechanism includes a fan, the bottom of which is fixedly connected to the top of the top cover, a control valve is fixedly connected to the output end of the fan, a circulation pipe is fixedly connected to the top of the control valve, the other end of the circulation pipe is fixedly connected to the input end of the fan, and a controller is installed on the outside of the circulation pipe. With the above technical solution: when the fan starts to run, the exhaust airflow first reaches the control valve. The control valve adjusts the flow rate or pressure of the airflow according to the instructions issued by the controller. The adjusted airflow flows along the circulation pipe and eventually returns to the input end of the fan, forming a complete cycle. During this process, the controller will monitor various parameters of the airflow in the circulation pipe in real time, such as temperature and pressure, and dynamically adjust the opening of the control valve according to the preset program.

[0009] Preferably, the other end of the control valve is fixedly connected to an air duct, and an air nozzle is fixedly connected to the outside of the air duct; The above technical solution involves the fan operating and discharging airflow. After the airflow is regulated by the control valve to adjust its flow rate or pressure, it enters the air duct. The air duct guides the airflow to the nozzle. The controller monitors the airflow parameters in the circulation pipe and dynamically adjusts the opening of the control valve, thereby indirectly affecting the airflow status at the air duct and nozzle.

[0010] Preferably, the sealing assembly includes a lifting rail, the lifting rail is fixedly connected to the outside of the furnace body, a gate is slidably connected to the inside of the lifting rail, a control motor is fixedly connected to the top of the lifting rail, and a rotating shaft is fixedly connected to the output end of the control motor. The above technical solution works as follows: when the furnace body needs to be opened or closed, the control motor starts and drives the rotating shaft to rotate. The rotation of the rotating shaft causes the gate to move linearly under the constraint of the lifting rail.

[0011] Preferably, the mounting assembly includes a sensing hole, the sensing hole being formed on the outside of the furnace body, the outside of the furnace body having an air vent and a wiring hole; The above technical solution involves: a sensing hole for installing a temperature sensor, which monitors parameters such as temperature and pressure inside the furnace in real time; a wiring hole for connecting and adjusting the wire; and an air hole for connecting and adjusting the air nozzle.

[0012] Preferably, the temperature sensor is externally mounted inside the sensing hole, and the adjustment wire is externally fixedly connected inside the wire hole; The above technical solution involves a temperature sensor that monitors the temperature data inside the furnace in real time through a sensing hole and converts the data into an electrical signal. The regulating line then transmits electrical energy through a wire hole.

[0013] Preferably, the outside of the air duct is fixedly connected to the inside of the top cover, and the outside of the air nozzle is installed inside the air hole; With the above technical solution: the fan operates, the airflow enters the air duct after being regulated by the control valve, and enters the furnace body through the air nozzle and air hole.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. In this utility model, the heating tube is fixed inside the inner temperature layer by a fixing plate. After being powered on, it generates heat and acts directly on the workpiece on the support plate through the heat transmission groove. The inner temperature layer reflects the heat back into the furnace, thereby reducing the quality defects caused by local overheating or insufficient heating of some workpieces when heat treating a large number of workpieces, and improving the processing accuracy and product qualification rate.

[0015] 2. In this utility model, the temperature sensor collects temperature data in real time through the sensing hole, transmits the signal to the sensor amplified by the support tube, and then transmits it to the temperature controller by the regulating line, so that the temperature controller controls the heating tube to adjust the temperature. After the centrifugal fan is started, the airflow passes through the control valve and forms a closed loop through the circulation pipe. The controller monitors the gas pressure and flow rate, and then sprays the gas into the inner temperature layer through the air duct and the air nozzle, so as to improve the temperature uniformity in the furnace and shorten the heat treatment time, thereby solving the problems of uneven temperature in the furnace and low heat treatment efficiency in the heating equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a heat treatment furnace temperature uniform adjustment device proposed in this utility model; Figure 2 This is a schematic diagram of the top cover of a heat treatment furnace temperature uniformity adjustment device proposed in this utility model; Figure 3 This is a schematic diagram of the internal temperature layer of a heat treatment furnace temperature uniformity adjustment device proposed in this utility model; Figure 4 This is a schematic diagram of the support plate of a heat treatment furnace temperature uniformity adjustment device proposed in this utility model; Figure 5 This is a schematic diagram of the structure of a temperature sensor for a heat treatment furnace temperature uniformity adjustment device proposed in this utility model. Figure 6 This is a schematic diagram of the controller of a heat treatment furnace temperature uniformity adjustment device proposed in this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Bracket; 2. Furnace body; 3. Top cover; 4. Heating mechanism; 41. Inner temperature layer; 42. Slide rail; 43. Support plate; 44. Temperature permeation groove; 45. Fixing plate; 46. Heating tube; 5. Sealing assembly; 51. Lifting rail; 52. Gate; 53. Control motor; 54. Rotating shaft; 6. Adjustment mechanism; 61. Temperature controller; 62. Adjustment line; 63. Sensor; 64. Support tube; 65. Temperature sensor; 7. Circulation mechanism; 71. Fan; 72. Control valve; 73. Circulation tube; 74. Controller; 75. Air duct; 76. Air nozzle; 8. Mounting assembly; 81. Sensor hole; 82. Air vent; 83. Wiring hole. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0019] A temperature uniformity regulating device for a heat treatment furnace, as described above. Figure 1 , Figure 2 and Figure 4 The system includes a bracket 1, a fixed mounting platform, a top cover 3 fixedly connected to the top of the bracket 1, the top cover 3 providing mounting support, a furnace body 2 fixedly connected inside the bracket 1, the core space of the furnace body 2 for heat treatment, used to accommodate the workpieces to be processed, a heating mechanism 4 inside the furnace body 2, a circulation mechanism 7 on the top of the top cover 3, and an adjustment mechanism 6 on the outside of the bracket 1. The heating mechanism 4 includes an inner temperature layer 41, which is a heat insulation layer to reduce heat transfer to the outside of the furnace body 2. The inner temperature layer 41 is fixedly connected to the outside of the furnace body 2. A slide rail 42 is fixedly connected inside the inner temperature layer 41. The slide rail 42 provides a sliding track for the support plate 43, allowing the support plate 43 to move flexibly inside the furnace body 2, facilitating the placement and removal of workpieces, and also facilitating the inspection and maintenance of components such as the heating tube 46. The support plate 43 is slidably connected to the outside of the slide rail 42. The support plate 43 is used to support the workpiece being processed, and the internal heat-permeable groove 44 allows the workpiece to fully contact the heat generated by the heating tube 46, ensuring uniform heating of the workpiece. The support plate 43 has heat-permeable grooves 44 inside. 4. The heat transfer bath 44 increases the contact area between the workpiece and the heating tube 46 to generate heat, promotes rapid heat transfer, and improves the heating efficiency and uniformity of the workpiece. The inner temperature layer 41 is fixedly connected to a fixing plate 45, which fixes the heating tube 46 to ensure the stability of the heating tube 46 inside the furnace body 2, and provides necessary support and protection for the heating tube 46. The heating tube 46 is fixedly connected inside the fixing plate 45. The heating tube 46 converts electrical energy into heat energy to provide heat to the inside of the furnace body 2, so that the workpiece reaches the required heat treatment temperature. The fixing plate 45 is externally supported inside the support plate 43. The furnace body 2 is provided with an installation assembly 8, and the furnace body 2 is fixedly connected to a sealing assembly 5. Specifically, the heat treatment furnace temperature uniform adjustment device has an installation platform on the top of the support 1, on which the top cover 3 is fixed. The furnace body 2 is fixed inside the support 1. Inside the furnace body 2, the inner temperature layer 41 is fixed to the inner wall of the furnace body 2. The inner temperature layer 41 is equipped with a slide rail 42, and a support plate 43 is slidably connected to the slide rail 42. The support plate 43 has a heat transmission groove 44. A fixing plate 45 is also fixed inside the inner temperature layer 41. The heating tube 46 is fixed inside the fixing plate 45 and is externally supported inside the support plate 43. The heating tube 46 is used to generate heat. In addition, the furnace body 2 is equipped with an installation component 8 and an externally fixed sealing component 5. The top of the top cover 3 is equipped with a circulation mechanism 7, and the support 1 is equipped with an adjustment mechanism 6.

[0020] The sealing assembly 5 includes a lifting rail 51, which provides a vertical lifting track for the gate 52. The lifting rail 51 is fixedly connected to the outside of the furnace body 2. The gate 52 is slidably connected inside the lifting rail 51. The gate 52 serves as a movable sealing component of the furnace body 2. When closed, it can effectively prevent heat leakage from the furnace body 2 and the entry of external air, dust, and other impurities, thus ensuring the temperature environment and cleanliness inside the furnace body 2. A control motor 53 is fixedly connected to the top of the lifting rail 51. The control motor 53 provides power for the lifting and lowering of the gate 52. A rotating shaft 54 ​​is fixedly connected to the output end of the control motor 53. The rotating shaft 54 ​​serves as a power transmission component between the control motor 53 and the gate 52, converting the rotational motion of the control motor 53 into the linear lifting and lowering motion of the gate 52, thereby driving the gate 52. Specifically, in the sealing assembly 5, the lifting rail 51 is fixed to the outside of the furnace body 2 to provide a vertical track for the gate 52. The gate 52 is slidably connected inside the lifting rail 51. The top of the lifting rail 51 is fixed with a control motor 53, the output end of which is connected to a rotating shaft 54. The rotating shaft 54 ​​converts the rotational motion of the control motor 53 into the linear lifting motion of the gate 52, thereby realizing the lifting operation of the gate 52 within the lifting rail 51.

[0021] Mounting assembly 8 includes a sensing hole 81, which provides an installation channel for temperature sensing components such as temperature sensor 65, enabling temperature sensor 65 to accurately measure the temperature inside furnace body 2. The sensing hole 81 is located on the outside of furnace body 2. An air hole 82 is provided on the outside of furnace body 2, which serves as a connection channel between air duct 75 and the inside of furnace body 2, allowing hot air generated by circulation mechanism 7 to smoothly enter the inside of furnace body 2, promoting the circulation of air inside the furnace and achieving uniform temperature distribution. A wire hole 83 is provided on the outside of furnace body 2, which provides a wire passage for lines such as adjustment wire 62, allowing temperature controller 61 to be connected to heating tube 46. Specifically, the installation component 8 includes a sensing hole 81, an air vent 82, and a wiring hole 83 on the outside of the furnace body 2. The sensing hole 81 is used to install temperature sensing components such as the temperature sensor 65. The air vent 82 serves as the connection port between the air duct 75 of the circulation mechanism 7 and the inside of the furnace body 2, facilitating the entry of hot air into the furnace. The wiring hole 83 provides a channel for lines such as the regulating line 62, enabling the connection between the temperature controller 61 and the heating tube 46.

[0022] Reference Figure 2 , Figure 3 and Figure 5The regulating mechanism 6 includes a temperature controller 61, which controls the temperature and the heating tube 46 via an adjusting line 62. The temperature controller 61 is externally mounted on the outside of the furnace body 2. The output end of the temperature controller 61 is fixedly connected to the adjusting line 62, which serves as the electrical connection line between the temperature controller 61 and the heating tube 46, transmitting control signals and power. A sensor 63 is fixedly connected to the top of the top cover 3. The sensor 63 provides mounting support and protection for the temperature sensor 65, and performs preliminary processing and amplification on the signal collected by the temperature sensor 65 to improve the accuracy and reliability of the temperature signal. A support tube 64 is fixedly connected to the output end of the sensor 63. The support tube 64 connects the sensor 63 and the temperature sensor 65, providing an installation position and support for the temperature sensor 65. The temperature sensor 65 is fixedly connected to the outside of the support tube 64. The temperature sensor 65 monitors the temperature changes inside the furnace body 2 in real time and converts the temperature signal into an electrical signal or other transmittable signal. The outside of the temperature sensor 65 is mounted inside the sensing hole 81, and the outside of the adjusting line 62 is fixedly connected inside the wire hole 83. Specifically, in the adjustment mechanism 6, the temperature controller 61 is installed outside the furnace body 2, and its output end is connected to the adjustment line 62. The adjustment line 62 passes through the wire hole 83 and is connected to the heating tube 46. The sensor 63 is fixed on the top of the top cover 3. The output end of the sensor 63 is connected to the support tube 64. The temperature sensor 65 is fixed outside the support tube 64. The temperature sensor 65 is installed in the sensing hole 81.

[0023] Reference Figure 2 , Figure 3 and Figure 6 The circulation mechanism 7 includes a blower 71, which provides power for the circulation of gas in the furnace. The bottom of the blower 71 is fixedly connected to the top of the top cover 3. A control valve 72 is fixedly connected to the output end of the blower 71. The control valve 72 is used to control the direction and flow rate of the gas. A circulation pipe 73 is fixedly connected to the top of the control valve 72. The circulation pipe 73 is an important channel for gas circulation. It guides the gas output from the blower 71 back to the input end of the blower 71, forming a closed gas circulation loop, so that the gas can continuously circulate in the furnace and continuously mix heat. The other end of the circulation pipe 73 is fixedly connected to the input end of the blower 71. A controller 74 is installed on the outside of the circulation pipe 73. The controller 74 is used to monitor and control the circulation status of the gas in the circulation pipe 73, including parameters such as gas flow rate and pressure. According to the preset program or the operator's instructions, it adjusts the control valve 72 and the blower 71 to ensure the stable and efficient operation of the gas circulation system. The other end of the control valve 72 is fixedly connected to the air duct 75. The air duct 75 is a channel for transporting the gas processed by the blower 71 into the furnace body 2. Its function is to guide the gas into the furnace body 2 along a specific path and direction. The outside of the air duct 75 is fixedly connected to the air nozzle 76. The air nozzle 76 is installed in the air hole 82 of the air duct 75 and the furnace body 2. Its main function is to spray the gas in the air duct 75 into the furnace body 2 at a suitable angle and speed, enhance the diffusion effect of the gas in the furnace, and promote the mixing and heat exchange of the gas in the furnace. The outside of the air duct 75 is fixedly connected to the inside of the top cover 3, and the outside of the air nozzle 76 is installed inside the air hole 82. Specifically, in the circulation mechanism 7, the bottom of the blower 71 is fixed to the top of the top cover 3, and its output end is connected to the control valve 72. The top of the control valve 72 is connected to the circulation pipe 73, and the other end of the circulation pipe 73 is connected to the input end of the blower 71. The circulation pipe 73 is equipped with a controller 74. Meanwhile, the other end of the control valve 72 is connected to the air duct 75. The air duct 75 is fixed to the inside of the top cover 3, and an air nozzle 76 is provided on its outside. The air nozzle 76 is installed in the air hole 82 of the furnace body 2.

[0024] The implementation principle of this application embodiment is as follows: the bracket 1 supports the furnace body 2 and the top cover 3. The workpiece is placed on the support plate 43 and pushed into the furnace body 2 through the slide rail 42. The control motor 53 drives the rotating shaft 54 ​​to make the gate 52 descend along the lifting rail 51 to seal the opening of the furnace body 2. After the heating tube 46 is powered on, it is fixed and supported by the fixing plate 45. Heat is dissipated to the workpiece through the heat transmission groove 44. The heat is blocked by the inner temperature layer 41 and dissipated to the outside of the furnace body 2. At this time, the temperature sensor 65 monitors the furnace temperature in real time through the sensing hole 81. The signal is transmitted to the sensor 63 through the support tube 64 and amplified. Then, it is transmitted to the temperature controller 61 through the adjustment line 62 and the wire hole 83 to initially establish the basic temperature field inside the furnace.

[0025] When the temperature controller 61 detects that the temperature deviates from the preset value, it controls the power of the heating tube 46 through the adjustment line 62, and at the same time triggers the circulation mechanism 7, the centrifugal fan 71 starts, the airflow is divided by the control valve 72, part of it forms an internal circulation through the circulation pipe 73, and part of it is sprayed into the inner temperature layer 41 through the air duct 75 and the air nozzle 76 at a specific angle through the air hole 82 of the furnace body 2. The controller 74 monitors the gas pressure and flow rate in the circulation pipe 73, and dynamically adjusts the speed of the fan 71 and the opening of the control valve 72 to promote forced convection of hot air in the furnace. The hot airflow enhances the heat exchange between the workpiece and the heating tube 46 through the heat permeation groove 44, and at the same time evenly covers all areas of the inner temperature layer 41.

[0026] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heat treatment furnace temperature uniformity adjustment device, comprising a support (1), characterized in that: The top of the bracket (1) is fixedly connected to a top cover (3), the inside of the bracket (1) is fixedly connected to a furnace body (2), the inside of the furnace body (2) is provided with a heating mechanism (4), the top of the top cover (3) is provided with a circulation mechanism (7), and the outside of the bracket (1) is provided with an adjustment mechanism (6). The heating mechanism (4) includes an inner temperature layer (41), the outer side of which is fixedly connected to the inside of the furnace body (2). A slide rail (42) is fixedly connected to the inside of the inner temperature layer (41), and a support plate (43) is slidably connected to the outside of the slide rail (42). A heat-permeable groove (44) is provided inside the support plate (43). A fixing plate (45) is fixedly connected to the inside of the inner temperature layer (41), and a heating tube (46) is fixedly connected to the inside of the fixing plate (45). The outside of the fixing plate (45) is supported inside the support plate (43). An installation assembly (8) is provided inside the furnace body (2), and a sealing assembly (5) is fixedly connected to the outside of the furnace body (2).

2. The heat treatment furnace temperature uniformity adjustment device according to claim 1, characterized in that: The regulating mechanism (6) includes a temperature controller (61), which is installed on the outside of the furnace body (2). The output end of the temperature controller (61) is fixedly connected to an regulating line (62). A sensor (63) is fixedly connected to the top of the top cover (3). A support tube (64) is fixedly connected to the output end of the sensor (63). A temperature sensor (65) is fixedly connected to the outside of the support tube (64).

3. The heat treatment furnace temperature uniformity adjustment device according to claim 2, characterized in that: The circulation mechanism (7) includes a fan (71), the bottom of which is fixedly connected to the top of the top cover (3), a control valve (72) is fixedly connected to the output end of the fan (71), a circulation pipe (73) is fixedly connected to the top of the control valve (72), the other end of the circulation pipe (73) is fixedly connected to the input end of the fan (71), and a controller (74) is installed on the outside of the circulation pipe (73).

4. The heat treatment furnace temperature uniformity adjustment device according to claim 3, characterized in that: The other end of the control valve (72) is fixedly connected to an air duct (75), and an air nozzle (76) is fixedly connected to the outside of the air duct (75).

5. The heat treatment furnace temperature uniformity adjustment device according to claim 1, characterized in that: The sealing assembly (5) includes a lifting rail (51), which is fixedly connected to the outside of the furnace body (2). A gate (52) is slidably connected inside the lifting rail (51). A control motor (53) is fixedly connected to the top of the lifting rail (51), and a rotating shaft (54) is fixedly connected to the output end of the control motor (53).

6. The heat treatment furnace temperature uniformity adjustment device according to claim 4, characterized in that: The mounting assembly (8) includes a sensing hole (81), which is located on the outside of the furnace body (2). The furnace body (2) has an air vent (82) and a wire hole (83) on its outside.

7. The heat treatment furnace temperature uniformity adjustment device according to claim 6, characterized in that: The temperature sensor (65) is externally mounted inside the sensing hole (81), and the adjustment wire (62) is externally fixedly connected inside the wire hole (83).

8. The heat treatment furnace temperature uniformity adjustment device according to claim 6, characterized in that: The outside of the air duct (75) is fixedly connected to the inside of the top cover (3), and the outside of the air nozzle (76) is installed inside the air hole (82).

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