Preheating sintering device

Abstract

The utility model is suitable for the technical field of thermocouple processing, and provides a preheating sintering device, which comprises a sintering box, a preheating device and a heating device, wherein two transverse screw rods are rotationally arranged on the inner wall of the sintering box; the two sliding plates are respectively arranged on the two transverse screw rods in a threaded and sleeving manner; the supporting plates are fixedly mounted on the sides, close to each other, of the two sliding plates; the plurality of insertion holes are formed in the supporting plate; the first driving mechanism is arranged on the inner wall of the sintering box and is used for driving the two transverse screw rods to rotate; the lifting mechanism is arranged on the inner wall of the sintering box and used for controlling the sintering mechanism to move up and down; the second driving mechanism is arranged on the inner wall of the bottom of the sintering box and used for providing kinetic energy for the lifting mechanism. According to the preheating sintering device provided by the scheme, the thermocouple can be efficiently preheated and sintered, the thermocouple can be conveniently inserted, placed and taken, meanwhile, the preheating sintering device has the air cooling function, and the sintered thermocouple can be conveniently and rapidly cooled.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermocouple processing, in particular to a preheating sintering device. Background Art

[0002] Thermocouples are commonly used temperature measuring elements in temperature measuring instruments. They directly measure temperature and convert temperature signals into thermoelectric potential signals, which are then converted into the temperature of the measured medium through electrical instruments (secondary instruments). The appearance of various thermocouples is often very different due to needs, but their basic structure is roughly the same. They are usually composed of main parts such as hot electrodes, insulating sleeve protection tubes and junction boxes, and are usually used in conjunction with display instruments, recording instruments and electronic regulators. In the process of thermocouple processing, a preheating sintering device is required to sinter the hot end of the thermocouple.

[0003] However, the existing preheating and sintering device is not convenient for placing and removing the thermocouple, and the existing preheating and sintering device also has the problem of low sintering efficiency for the thermocouple. Utility Model Content

[0004] The utility model provides a preheating sintering device, aiming to solve the problems in the prior art that the existing preheating sintering device is inconvenient for placing and taking out thermocouples and has low sintering efficiency.

[0005] To solve the above problems, the utility model is implemented as follows: a preheating sintering device includes: a sintering box on which two transverse screws are rotatably mounted on the inner wall; two sliding plates respectively threadedly mounted on the two transverse screws; a support plate fixedly mounted on the side where the two sliding plates are close to each other; a plurality of jacks provided on the support plate; a first driving mechanism arranged on the inner wall of the sintering box for driving the two transverse screws to rotate; a lifting mechanism arranged on the inner wall of the sintering box for controlling the up and down movement of the sintering mechanism; a second driving mechanism arranged on the inner wall of the bottom of the sintering box for providing kinetic energy to the lifting mechanism; a sintering mechanism arranged on the lifting mechanism for preheating and sintering a plurality of thermocouples; and an air cooling mechanism arranged on the sintering box for cooling the plurality of thermocouples.

[0006] Preferably, the first driving mechanism comprises: a servo motor fixedly mounted on the inner wall of the sintering box and having two active synchronous wheels; two driven synchronous wheels respectively fixedly mounted on the two transverse screws, and two synchronous belts are mounted on the two active synchronous wheels and the two driven synchronous wheels.

[0007] Preferably, the lifting mechanism comprises: two longitudinal screws rotatably mounted on the inner wall of the sintering box; two lifting plates respectively threadedly sleeved on the two longitudinal screws; and a sintering cover fixedly mounted on the sides of the two lifting plates close to each other.

[0008] Preferably, the second driving mechanism includes: a dual-axis motor fixedly mounted on the inner wall of the bottom of the sintering box; two transmission rods respectively fixedly mounted at both ends of the output shaft of the dual-axis motor; two active bevel gears respectively fixedly mounted at one end of the two transmission rods away from each other; two driven bevel gears respectively fixedly mounted on the two longitudinal screws, and the two active bevel gears are respectively meshed with the two driven bevel gears.

[0009] Preferably, the sintering mechanism comprises: a plurality of ceramic blocks respectively fixedly mounted on the inner walls on both sides of the sintering cover; a plurality of heating rods respectively fixedly mounted on one end of the plurality of ceramic blocks close to each other; and a plurality of heat-conducting blocks respectively fixedly mounted on the plurality of heating rods and having grooves.

[0010] Preferably, a box door is hinged on the sintering box, an observation window is provided on the box door, and a controller is provided on the box door.

[0011] Preferably, two limit plates are fixedly mounted on the inner wall of the sintering box, and the two limit plates are rotatably connected to the two transverse screws respectively.

[0012] Preferably, the air cooling mechanism comprises: a plurality of fans arranged on one side of the sintering box; and a plurality of ventilation holes respectively opened on both sides of the sintering box.

[0013] Compared with the related art, the preheating sintering device provided by the utility model has the following beneficial effects:

[0014] Compared with the prior art, the preheating sintering device provided in the present scheme includes a sintering box, on the inner wall of which two transverse screws are rotatably installed, and two sliding plates are respectively threadedly sleeved on the two transverse screws, which can move along the axial direction of the screw as the screw rotates, and a support plate is fixedly installed on the side where the sliding plates are close to each other, and a plurality of insertion holes are provided on the support plate for placing the thermocouples to be sintered. The device also includes a first driving mechanism, which is arranged on the inner wall of the sintering box and is used to drive the two transverse screws to rotate. Through the drive of the first driving mechanism, the transverse screw can rotate, thereby driving the sliding plate and the support plate thereon to move along the axial direction of the screw, thereby facilitating the placement and retrieval of the thermocouple. In addition, the device is also equipped with a lifting mechanism, which is arranged on the inner wall of the sintering box and is used to control the up and down movement of the sintering mechanism. This mechanism can adjust the position of the sintering mechanism as needed, so that multiple guides can be placed. The heat block is connected or separated from a plurality of thermocouples. In order to provide the kinetic energy required by the lifting mechanism, a second driving mechanism is provided in the device, which is installed on the bottom inner wall of the sintering box. Driven by the second driving mechanism, the lifting mechanism can smoothly and accurately move the sintering mechanism to ensure the smooth progress of the sintering process. The sintering mechanism is a key component in the preheating sintering device. It is provided on the lifting mechanism and is used to preheat and sinter a plurality of thermocouples. Through the heating effect of the sintering mechanism, the thermocouples can be sintered at a certain temperature, so that they have good electrical conductivity and stability. In order to further improve the performance of the thermocouples, the device is also provided with an air cooling mechanism, which is installed on the sintering box and is used to cool a plurality of thermocouples. After sintering is completed, the air cooling mechanism can quickly reduce the temperature of the thermocouples to prevent them from being damaged due to overheating, and also helps to improve the performance and service life of the thermocouples.

[0015] In summary, the preheating and sintering device of this patent realizes the preheating, sintering and cooling operations of multiple thermocouples through ingenious mechanism design and functional configuration, thereby improving the production efficiency and quality of thermocouples. The device has the advantages of easy operation, stable performance and high production efficiency, and has broad application prospects in the field of thermocouple production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a preheating sintering device provided by the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of a front cross-sectional structure;

[0018] Figure 3 for Figure 1 A schematic diagram of a top-view cross-sectional structure;

[0019] Figure 4 for Figure 2 An enlarged structural diagram of part A shown in FIG.

[0020] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of part B shown in FIG.

[0021] Figure numerals: 1, sintering box; 2, transverse screw; 3, sliding plate; 4, supporting plate; 5, jack; 6, servo motor; 7, active synchronous wheel; 8, driven synchronous wheel; 9, longitudinal screw; 10, lifting plate; 11, sintering cover; 12, double-axis motor; 13, transmission rod; 14, active bevel gear; 15, driven bevel gear; 16, limit block; 17, ceramic block; 18, heating rod; 19, heat conductive block; 20, groove; 21, box door; 22, observation window; 23, controller; 24, limit plate; 25, fan; 26, vent. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" in the specification and claims of the present application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present application or the above-mentioned figures are used to distinguish different objects, rather than to describe a specific order; the terms "inside", "outside", "left", and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] The present invention provides a preheating sintering device. Figure 1-5As shown, the preheating sintering device includes: a sintering box 1 on which two transverse screws 2 are rotatably mounted on the inner wall; two sliding plates 3 are respectively threadedly mounted on the two transverse screws 2; a support plate 4 is fixedly mounted on the side where the two sliding plates 3 are close to each other; a plurality of sockets 5 are provided on the support plate 4; a first driving mechanism arranged on the inner wall of the sintering box 1 for driving the two transverse screws 2 to rotate; a lifting mechanism arranged on the inner wall of the sintering box 1 for controlling the up and down movement of the sintering mechanism; a second driving mechanism arranged on the inner wall of the bottom of the sintering box 1 for providing kinetic energy to the lifting mechanism; a sintering mechanism arranged on the lifting mechanism for preheating and sintering a plurality of thermocouples; and an air cooling mechanism arranged on the sintering box 1 for cooling a plurality of thermocouples.

[0025] In this embodiment, the core component of the preheating sintering device includes a sintering box 1, on the inner wall of which two transverse screws 2 are rotatably installed, and two sliding plates 3 are respectively threadedly sleeved on the two transverse screws 2, which can move along the axial direction as the screws rotate, and a support plate 4 is fixedly installed on the side of the sliding plates 3 close to each other, and a plurality of sockets 5 are provided on the support plate 4 for placing thermocouples to be sintered. The device also includes a first driving mechanism, which is arranged on the inner wall of the sintering box 1 and is used to drive the two transverse screws 2 to rotate. Through the drive of the first driving mechanism, the transverse screw 2 can rotate, thereby driving the sliding plate 3 and the support plate 4 thereon to move along the axial direction of the screw, thereby facilitating the placement and use of the thermocouples. In addition, the device is also equipped with a lifting mechanism, which is arranged on the inner wall of the sintering box 1 and is used to control the up and down movement of the sintering mechanism. This mechanism can adjust the position of the sintering mechanism as needed, so as to The plurality of heat-conducting blocks 19 are connected or separated with the plurality of thermocouples. In order to provide the kinetic energy required by the lifting mechanism, a second driving mechanism is provided in the device, which is installed on the bottom inner wall of the sintering box 1. Driven by the second driving mechanism, the lifting mechanism can smoothly and accurately move the sintering mechanism to ensure the smooth progress of the sintering process. The sintering mechanism is a key component in the preheating sintering device. It is provided on the lifting mechanism and is used to preheat and sinter the plurality of thermocouples. Through the heating effect of the sintering mechanism, the thermocouples can be sintered at a certain temperature, so that they have good electrical conductivity and stability. In order to further improve the performance of the thermocouples, the device is also provided with an air cooling mechanism, which is installed on the sintering box 1 and is used to cool the plurality of thermocouples. After the sintering is completed, the air cooling mechanism can quickly reduce the temperature of the thermocouples to prevent them from being damaged due to overheating, and also helps to improve the performance and service life of the thermocouples.

[0026] In summary, the preheating and sintering device of this patent realizes the preheating, sintering and cooling operations of multiple thermocouples through ingenious mechanism design and functional configuration, thereby improving the production efficiency and quality of thermocouples. The device has the advantages of easy operation, stable performance and high production efficiency, and has broad application prospects in the field of thermocouple production.

[0027] In a further preferred embodiment of the utility model, the first driving mechanism includes: a servo motor 6 fixedly mounted on the inner wall of the sintering box 1 and having two active synchronous wheels 7; two driven synchronous wheels 8 fixedly mounted on the two transverse screws 2 respectively, and two synchronous belts are mounted on the two active synchronous wheels 7 and the two driven synchronous wheels 8.

[0028] In this embodiment, the servo motor 6 is used as a power source with the characteristics of high precision and high reliability, and can ensure the precise rotation of the transverse screw 2. At the same time, the two driven synchronous wheels 8 are fixedly mounted on the two transverse screws 2 and cooperate with the active synchronous wheel 7. This transmission mode of synchronous wheels and synchronous belts can ensure the synchronous rotation of the two transverse screws 2, thereby avoiding deviation or misalignment of the sliding plate 3 during movement. In addition, the two synchronous belts are respectively mounted on the two active synchronous wheels 7 and the two driven synchronous wheels 8, forming a stable transmission system. The synchronous belts have the advantages of smooth transmission, low noise and long service life, and can ensure the stability and reliability of the entire drive mechanism.

[0029] In a further preferred embodiment of the utility model, the lifting mechanism includes: two longitudinal screws 9 rotatably mounted on the inner wall of the sintering box 1; two lifting plates 10 respectively threadedly sleeved on the two longitudinal screws 9; and a sintering cover 11 fixedly mounted on one side of the two lifting plates 10 close to each other.

[0030] In this embodiment, the design of the lifting mechanism has been optimized and improved in more detail. The mechanism mainly includes two longitudinal screws 9 rotatably mounted on the inner wall of the sintering box 1, and two lifting plates 10 respectively threadedly sleeved on the two longitudinal screws 9. This design enables the lifting plate 10 to move up and down along its axial direction as the longitudinal screw 9 rotates, thereby realizing precise control of the position of the sintering cover 11. The sintering cover 11 is fixedly mounted on the side where the two lifting plates 10 are close to each other, and is used to accommodate and fix the thermocouple to be sintered, ensuring its stability and safety during the sintering process. Through the optimized lifting mechanism, the preheating sintering device of the utility model can more accurately control the lifting movement of the sintering cover 11, thereby achieving uniform heating and efficient sintering of the thermocouple. This design not only improves the accuracy and efficiency of sintering, but also reduces the difficulty of operation, making the entire sintering process simpler and more reliable. In addition, the stability and reliability of the lifting mechanism are also further improved, ensuring the continuity and stability of the sintering process, which helps to reduce production costs and improve production efficiency, and also helps to improve the quality and performance of the thermocouple.

[0031] In a further preferred embodiment of the utility model, the second driving mechanism includes: a double-axis motor 12 fixedly mounted on the inner wall of the bottom of the sintering box 1; two transmission rods 13 respectively fixedly mounted on both ends of the output shaft of the double-axis motor 12; two active bevel gears 14 respectively fixedly mounted on one end of the two transmission rods 13 away from each other; two driven bevel gears 15 respectively fixedly sleeved on the two longitudinal screws 9, and the two active bevel gears 14 are respectively meshed with the two driven bevel gears 15.

[0032] In this embodiment, the design of the second driving mechanism has been more specifically optimized and improved. The mechanism mainly includes a double-axis motor 12 fixedly installed on the inner wall of the bottom of the sintering box 1. The motor has two output shafts and can simultaneously drive two transmission rods 13 to rotate. One end of the transmission rod 13 is fixedly connected to the output shaft of the double-axis motor 12, and the other end is fixedly installed with a driving bevel gear 14. This design enables the driving force of the double-axis motor 12 to be effectively transmitted to the driving bevel gear 14, thereby realizing the transmission and conversion of power. At the same time, a driven bevel gear 15 is fixedly sleeved on the longitudinal screw 9, and the driving bevel gear 14 is meshed with the driven bevel gear 15. This bevel gear transmission mode has the advantages of smooth transmission. , the characteristics of precise transmission ratio can ensure the stability and accuracy of the longitudinal screw 9 during the rotation process. Through the optimized second driving mechanism, the preheating sintering device of the utility model can realize precise control of the lifting mechanism. The driving force of the dual-axis motor 12 is transmitted to the longitudinal screw 9 through the transmission rod 13 and the bevel gear, thereby driving the lifting plate 10 and the sintering cover 11 to perform lifting movement. This design not only improves the accuracy and stability of the lifting movement, but also reduces energy consumption and improves the working efficiency of the entire device. In addition, since the transmission ratio of the bevel gear can be precisely designed, the speed and stroke of the lifting mechanism can be adjusted according to actual needs, making the entire sintering process more flexible and controllable.

[0033] In a further preferred embodiment of the utility model, the sintering mechanism includes: a plurality of ceramic blocks 17 respectively fixedly mounted on the inner walls on both sides of the sintering cover 11; a plurality of heating rods 18 respectively fixedly mounted on the plurality of ceramic blocks 17 close to one end thereof; and a plurality of heat-conducting blocks 19 respectively fixedly mounted on the plurality of heating rods 18 and having grooves 20.

[0034] In the present embodiment, the design of the sintering mechanism is described and improved in more detail. The mechanism mainly includes a plurality of ceramic blocks 17 fixedly mounted on the inner walls on both sides of the sintering cover 11. These ceramic blocks 17 not only have excellent high temperature resistance, but also can effectively isolate heat and protect the sintering cover 11 from high temperature damage. At the end close to each other of each ceramic block 17, a heating rod 18 is fixedly mounted. These heating rods 18 serve as heat sources and can provide necessary heat for the sintering of the thermocouple. By accurately controlling the working state of the heating rods 18, the sintering temperature can be accurately controlled, thereby ensuring the sintering quality of the thermocouple. In addition, in order to improve the heat transfer efficiency, each heating rod 18 is fixedly mounted. 8 is fixedly sleeved with a heat-conducting block 19 with a groove 20. The heat-conducting block 19 is made of high thermal conductivity material and can quickly transfer the heat generated by the heating rod 18 to the thermocouple. At the same time, the design of the groove 20 can increase the contact area between the heat-conducting block 19 and the thermocouple, further improving the heat transfer efficiency. Through the optimized sintering mechanism, the preheating sintering device of the utility model can achieve more efficient and uniform thermocouple sintering. The coordinated use of the ceramic block 17 and the heating rod 18 ensures a stable supply and precise control of heat during the sintering process. The design of the heat-conducting block 19 and the groove 20 improves the heat transfer efficiency, so that the thermocouple can reach the required sintering temperature in a shorter time.

[0035] In a further preferred embodiment of the present invention, a box door 21 is hingedly connected to the sintering box 1 , an observation window 22 is provided on the box door 21 , and a controller 23 is provided on the box door 21 .

[0036] In this embodiment, a box door 21 is designed on the sintering box 1. This design allows the user to easily open or close the sintering box to put in or take out the thermocouple. At the same time, the hinged structure between the box door 21 and the sintering box 1 ensures the stability and durability of the box door, making the entire device easier to use. In order to facilitate the user to observe the working conditions inside the sintering box, an observation window 22 is provided on the box door 21. Through this window, the user can intuitively see the state of the thermocouple during the sintering process, so as to timely understand the sintering progress and effect. The design of the observation window 22 not only improves the transparency and operability of the device, but also provides the user with a better use experience. In addition, a controller 23 is also provided on the box door 21. This controller is the core control component of the entire preheating sintering device. The user can set the sintering temperature, time and other parameters through the controller 23, so as to achieve precise control of the sintering process. The addition of the controller 23 makes the entire device more intelligent and automated, reduces the difficulty of operation, and improves work efficiency.

[0037] In a further preferred embodiment of the present invention, two limit plates 24 are fixedly installed on the inner wall of the sintering box 1 , and the two limit plates 24 are rotatably connected to the two transverse screws 2 respectively.

[0038] In this embodiment, one end of the two transverse screw rods 2 can be positioned by two limiting plates 24 , thereby ensuring the stability of the rotation of the two transverse screw rods 2 .

[0039] In a further preferred embodiment of the present invention, the air cooling mechanism comprises: a plurality of fans 25 arranged on one side of the sintering box 1 ; and a plurality of vents 26 respectively opened on both sides of the sintering box 1 .

[0040] In the present embodiment, the design of the air cooling mechanism has been optimized and improved. The mechanism mainly includes a plurality of fans 25 arranged on one side of the sintering box 1, and a plurality of vents 26 respectively opened on both sides of the sintering box 1. The fan 25, as the main power source of the air cooling mechanism, can generate airflow by rotation, suck external cold air into the sintering box, and cool the sintered thermocouple. This design can quickly reduce the temperature of the thermocouple to prevent it from being damaged due to overheating, and also helps to improve the performance and service life of the thermocouple. The vents 26 play the role of connecting the air inside and outside the sintering box, so that the airflow generated by the fan can flow smoothly, thereby improving the cooling effect. The location of the vents 26 has also been carefully considered to ensure that the airflow can be evenly distributed in the sintering box to avoid local overheating or uneven cooling. Through the optimized air cooling mechanism, the preheating sintering device of the present invention can achieve more efficient and uniform thermocouple cooling. The coordinated use of the fan 25 and the vents 26 ensures the stable supply and uniform distribution of the airflow during the cooling process, thereby improving the cooling effect and efficiency.

[0041] In summary, compared with the relevant technology, the present device can not only preheat and sinter the thermocouple more efficiently, but also facilitate the insertion and use of the thermocouple, and also has an air cooling function, which is convenient for quickly cooling the sintered thermocouple.

[0042] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0043] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A preheating sintering device, characterized in that: include: A sintering box with two transverse screws rotatably mounted on the inner wall; Two sliding plates respectively threadedly sleeved on the two transverse screw rods; A support plate fixedly mounted on one side of the two sliding plates close to each other; A plurality of sockets are provided on the support plate; A first driving mechanism disposed on the inner wall of the sintering box for driving the two transverse screws to rotate; A lifting mechanism disposed on the inner wall of the sintering box for controlling the up and down movement of the sintering mechanism; A second driving mechanism disposed on the inner wall of the bottom of the sintering box and used for providing kinetic energy to the lifting mechanism; A sintering mechanism disposed on the lifting mechanism and used for preheating and sintering a plurality of thermocouples; An air cooling mechanism is provided on the sintering box for cooling a plurality of thermocouples.

2. The preheating sintering device according to claim 1, characterized in that: The first driving mechanism comprises: A servo motor fixedly mounted on the inner wall of the sintering box and having two active synchronous wheels; Two driven synchronous wheels are respectively fixedly sleeved on the two transverse screw rods, and two synchronous belts are sleeved on the two active synchronous wheels and the two driven synchronous wheels.

3. The preheating sintering device according to claim 1, characterized in that: The lifting mechanism comprises: Rotating two longitudinal screws mounted on the inner wall of the sintering box; Two lifting plates respectively threadedly sleeved on the two longitudinal screw rods; A sintering hood is fixedly mounted on one side of the two lifting plates close to each other.

4. The preheating sintering device according to claim 3, characterized in that: The second driving mechanism comprises: A double-shaft motor fixedly mounted on the inner wall of the bottom of the sintering box; Two transmission rods respectively fixedly mounted at both ends of the output shaft of the dual-axis motor; Two driving bevel gears respectively fixedly mounted on ends of the two transmission rods that are away from each other; Two driven bevel gears are respectively fixedly sleeved on the two longitudinal screw rods, and the two driving bevel gears are respectively meshed with the two driven bevel gears.

5. The preheating sintering device according to claim 3, characterized in that: The sintering mechanism comprises: A plurality of ceramic blocks respectively fixedly mounted on the inner walls of both sides of the sintering cover; A plurality of heating rods respectively fixedly mounted on one end of the plurality of ceramic blocks close to each other; A plurality of heat-conducting blocks with grooves are respectively fixedly sleeved on the plurality of heating rods.

6. The preheating sintering device according to claim 1, characterized in that: The sintering box is hinged with a box door, the box door is provided with an observation window, and the box door is provided with a controller.

7. The preheating sintering device according to claim 1, characterized in that: Two limit plates are fixedly installed on the inner wall of the sintering box, and the two limit plates are rotatably connected to the two transverse screw rods respectively.

8. The preheating sintering device according to claim 1, characterized in that: The air cooling mechanism comprises: A plurality of fans disposed on one side of the sintering box; A plurality of ventilation holes are respectively arranged on both sides of the sintering box.

Images