Vacuum heating furnace

Abstract

The utility model discloses a vacuum heating furnace, which relates to the technical field of heating furnaces, solves the problem that the heating quality of a workpiece is influenced by uneven temperature distribution possibly occurring in the heating process of a vacuum furnace, and comprises a heating furnace body, and a heating mechanism used for increasing the internal temperature of the heating furnace body is arranged in the heating furnace body. And one side of the heating furnace body is communicated with a temperature uniformizing mechanism for improving the internal temperature uniformity of the heating furnace body. The resistance furnace wires are arranged in the heating furnace body in a sliding manner, so that the positions of the resistance furnace wires in the heating furnace body can be conveniently adjusted, different positions in the heating furnace body can be better heated, and the number of the resistance furnace wires can be conveniently adjusted; the heating effect and the heating rate in the heating furnace body can be improved, air circulation in the heating furnace body is improved by introducing compressed air generated by the air blowing assembly into the heating furnace body, and the temperatures of different positions in the heating furnace body are more uniform.

Description

Technical Field

[0001] The utility model relates to the field of heating furnaces, and in particular to a vacuum heating furnace. Background Art

[0002] A vacuum heating furnace is a heating furnace that uses a vacuum system to discharge some substances in the furnace cavity within a specific space of the furnace cavity, so that the pressure in the furnace cavity is less than one standard atmospheric pressure, thereby realizing a vacuum state in the furnace cavity space. A vacuum heating furnace generally consists of a furnace chamber, an electric heating device, a sealed furnace shell, a vacuum system, a power supply system, a temperature control system, etc.

[0003] Vacuum heating technology is widely used in processes such as material processing and heat treatment, which can ensure that materials avoid unnecessary chemical reactions with gas components in the environment during the heating process. Currently, electric heating is usually used to heat workpieces in a vacuum chamber. Although this method can realize the heating process of workpieces, there is still room for improvement in terms of heating uniformity, resulting in uneven temperature distribution in the vacuum furnace during the heating process, which affects the heating quality of workpieces. Summary of the Utility Model

[0004] In order to improve the problem that the vacuum furnace may have uneven temperature distribution during the heating process, which affects the heating quality of workpieces, the utility model provides a vacuum heating furnace.

[0005] The utility model provides a vacuum heating furnace, adopting the following technical scheme:

[0006] A vacuum heating furnace includes a heating furnace body, and a heating mechanism for raising the internal temperature thereof is installed inside the heating furnace body, and a temperature equalizing mechanism for improving the internal temperature uniformity thereof is communicated with one side of the heating furnace body;

[0007] The heating mechanism includes a slide rail and a resistance furnace wire. The slide rail is fixed inside the heating furnace body, and the resistance furnace wire is slidably connected to the slide rail;

[0008] The temperature equalizing mechanism includes a blowing component and a temperature rising component. The blowing component is arranged on one side of the heating furnace body, and the temperature rising component is arranged inside the blowing component.

[0009] Optionally, positioning blocks are fixed at both ends of the resistance furnace wire, and the positioning blocks are slidably connected to the slide rail.

[0010] By adopting the above technical scheme, the resistance furnace wire realizes a sliding connection with the slide rail through the positioning blocks.

[0011] Optionally, a screw is provided between the positioning block and the slide rail. The screw is threadedly connected to the positioning block, and one end of the screw contacts the inside of the heating furnace body.

[0012] By adopting the above technical solution, setting the screw is beneficial to fixing the position of the positioning block on the slide rail, and thus is beneficial to adjusting the position of the resistance furnace wire in the heating furnace body.

[0013] Optionally, a plurality of resistance furnace wires are provided in the heating furnace body.

[0014] By adopting the above technical solution, setting a plurality of resistance furnace wires is beneficial to improving the efficiency of the temperature rise in the heating furnace body.

[0015] Optionally, the blowing assembly includes a box body and a blower. The box body is arranged on one side of the heating furnace body, and the blower is installed in the box body.

[0016] By adopting the above technical solution, by introducing the compressed air generated by the blower into the heating furnace body, the air circulation in the heating furnace body is improved, making the temperature at different positions in the heating furnace body more uniform.

[0017] Optionally, the temperature rising assembly includes a shield, an electric heating wire and an air outlet pipe. The shield is fixed inside the box body, the electric heating wire is fixed inside the shield, the shield is communicated with the output end of the blower, the air outlet pipe penetrates through the box body, one end of the air outlet pipe is communicated with the shield, and the other end of the air outlet pipe is communicated with the heating furnace body.

[0018] By adopting the above technical solution, setting the electric heating wire can preheat the compressed air flowing into the heating furnace body, which is beneficial to reducing the influence on the temperature in the heating furnace body.

[0019] Optionally, there are a certain number of air outlet pipes, and ventilation holes are provided on the box body.

[0020] By adopting the above technical solution, setting a certain number of air outlet pipes improves the effect of the compressed air circulation in the heating furnace body.

[0021] Optionally, a first connection hole and a second connection hole are provided on the shield.

[0022] By adopting the above technical solution, opening the first connection hole and the second connection hole is beneficial to the connection of the blower and the air outlet pipe with the shield.

[0023] In summary, the present utility model has the following beneficial effects:

[0024] 1. By slidably arranging the resistance furnace wire inside the heating furnace body, the present utility model not only facilitates the adjustment of the position of the resistance furnace wire inside the heating furnace body, which is conducive to better heating different positions inside it, but also enables the adjustment of the number of resistance furnace wires, which is beneficial to improving the heating effect and heating rate inside the heating furnace body.

[0025] 2. By introducing the compressed air generated by the blowing component into the heating furnace body, the present utility model improves the air circulation inside the heating furnace body, making the temperature at different positions inside the heating furnace body more uniform, improving the heating quality of the workpiece. The setting of the temperature increasing component can preheat the compressed air flowing into the heating furnace body, which is conducive to reducing the impact on the temperature inside the heating furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the vacuum heating furnace of the present utility model.

[0027] Figure 2 is a schematic structural diagram of the connection structure of the air outlet pipe of the present utility model.

[0028] Figure 3 is a schematic structural diagram of the heating mechanism of the present utility model.

[0029] Figure 4 is a schematic structural diagram of the temperature equalizing mechanism of the present utility model.

[0030] Figure 5 is a schematic structural diagram of the temperature increasing component of the present utility model.

[0031] DESCRIPTION OF THE REFERENCE NUMERALS:

[0032] 1, heating furnace body; 2, heating mechanism; 22, slide rail; 23, resistance furnace wire; 24, positioning block; 25, positioning screw; 3, temperature equalizing mechanism; 32, blowing component; 322, box body; 324, blower; 34, temperature increasing component; 342, shielding cover; 344, electric heating wire; 346, air outlet pipe; 347, first connection hole; 348, second connection hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following further elaborates on the present application Figures 1-5 in detail with reference to the appended drawings.

[0034] Please refer to Figures 1-5 , a vacuum heating furnace, comprising a heating furnace body 1, inside which a heating mechanism 2 for raising the internal temperature is installed, and on one side of the heating furnace body 1, a temperature equalizing mechanism 3 for improving the internal temperature uniformity is communicated.

[0035] The heating mechanism 2 includes a slide rail 22 and a resistance heating wire 23. The slide rail 22 is fixed inside the heating furnace body 1, and the resistance heating wire 23 is slidably connected to the slide rail 22. Slidingly arranging the resistance heating wire 23 inside the heating furnace body 1 not only facilitates adjusting the position of the resistance heating wire 23 inside the heating furnace body 1, but also helps to better heat different positions inside it.

[0036] The temperature equalizing mechanism 3 includes a blowing component 32 and a heating component 34. The blowing component 32 is arranged on one side of the heating furnace body 1, and the heating component 34 is arranged inside the blowing component 32. By introducing the compressed air generated by the blowing component 32 into the heating furnace body 1, the air circulation inside the heating furnace body 1 is improved, making the temperature at different positions inside the heating furnace body 1 more uniform.

[0037] Refer to Figure 3 , positioning blocks 24 are fixed at both ends of the resistance heating wire 23, and the positioning blocks 24 are slidably connected to the slide rail 22. More specifically, the resistance heating wire 23 is slidably connected to the slide rail 22 through the positioning blocks 24.

[0038] Refer to Figure 3 , a screw 25 is arranged between the positioning block 24 and the slide rail 22. The screw 25 is threadedly connected to the positioning block 24, and one end of the screw 25 contacts the inside of the heating furnace body 1. More specifically, arranging the screw 25 is beneficial for fixing the position of the positioning block 24 on the slide rail 22, thereby facilitating adjusting the position of the resistance heating wire 23 inside the heating furnace body 1.

[0039] Refer to Figure 3 , multiple resistance heating wires 23 are arranged inside the heating furnace body 1. More specifically, arranging multiple resistance heating wires 23 is beneficial for improving the heating efficiency of the temperature rise inside the heating furnace body 1.

[0040] Refer to Figure 4 , the blowing component 32 includes a box body 322 and a blower 324. The box body 322 is arranged on one side of the heating furnace body 1, and the blower 324 is installed inside the box body 322. More specifically, by introducing the compressed air generated by the blower 324 into the heating furnace body 1, the air circulation inside the heating furnace body 1 is improved, making the temperature at different positions inside the heating furnace body 1 more uniform.

[0041] Refer to Figure 2 , Figure 4 and Figure 5, the heating component 34 includes a shield 342, an electric heating wire 344, and an air outlet pipe 346. The shield 342 is fixed inside the box body 322, the electric heating wire 344 is fixed inside the shield 342, the shield 342 communicates with the output end of the blower 324, the air outlet pipe 346 penetrates through the box body 322, one end of the air outlet pipe 346 communicates with the shield 342, and the other end of the air outlet pipe 346 communicates with the heating furnace body 1. More specifically, the electric heating wire 344 is provided to preheat the compressed air flowing into the heating furnace body 1, which is beneficial to reducing the impact on the temperature inside the heating furnace body 1.

[0042] Refer to Figure 2 , there are 3 air outlet pipes 346, and ventilation holes are provided on the box body 322. More specifically, setting 3 air outlet pipes 346 improves the circulation effect of the compressed air inside the heating furnace body 1.

[0043] Refer to Figure 5 , the shield 342 is provided with a first connection hole 347 and a second connection hole 348. More specifically, opening the first connection hole 347 and the second connection hole 348 is beneficial to the connection of the blower 324 and the air outlet pipe 346 with the shield 342.

[0044] The implementation principle of the present utility model is as follows: When in use, the resistance furnace wire 23 is provided to heat the heating furnace body 1. The resistance furnace wire 23 is slidably arranged inside the heating furnace body 1, which is not only beneficial to adjusting the position of the resistance furnace wire 23 inside the heating furnace body 1, but also beneficial to better heating different positions inside it. By adjusting the number of the resistance furnace wires 23, it is beneficial to improve the heating effect and heating rate inside the heating furnace body 1. By providing the screw rod 25, it is beneficial to fix the position of the positioning block 24 on the slide rail 22, thereby facilitating the replacement of the resistance furnace wire 23. Starting the blower 324 to introduce compressed air into the heating furnace body 1 improves the air circulation inside the heating furnace body 1, making the temperature at different positions inside the heating furnace body 1 more uniform. The electric heating wire 344 preheats the compressed air flowing into the heating furnace body 1, which is beneficial to reducing the impact on the temperature inside the heating furnace body 1. Setting 3 air outlet pipes 346 improves the circulation effect of the compressed air inside the heating furnace body 1, and improves the problem that the temperature distribution may be uneven during the heating process of the vacuum furnace, affecting the heating quality of the workpiece.

[0045] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A vacuum heating furnace, comprising a heating furnace body (1), characterized in that: Inside the heating furnace body (1), a heating mechanism (2) for raising its internal temperature is installed, and on one side of the heating furnace body (1), a temperature equalizing mechanism (3) for improving the internal temperature uniformity is connected. The heating mechanism (2) includes a slide rail (22) and a resistance furnace wire (23). The slide rail (22) is fixed inside the heating furnace body (1), and the resistance furnace wire (23) is slidably connected to the slide rail (22). The temperature equalizing mechanism (3) includes a blowing component (32) and a temperature rising component (34). The blowing component (32) is arranged on one side of the heating furnace body (1), and the temperature rising component (34) is arranged inside the blowing component (32).

2. The vacuum heating furnace according to claim 1, wherein: Positioning blocks (24) are fixed at both ends of the resistance furnace wire (23), and the positioning blocks (24) are slidably connected to the slide rail (22).

3. The vacuum heating furnace according to claim 2, wherein: A screw rod (25) is arranged between the positioning block (24) and the slide rail (22). The screw rod (25) is threadedly connected to the positioning block (24), and one end of the screw rod (25) contacts the inside of the heating furnace body (1).

4. A vacuum heating furnace according to claim 1, characterized in that: A plurality of resistance furnace wires (23) are arranged inside the heating furnace body (1).

5. A vacuum heating furnace according to claim 1, characterized in that: The blowing component (32) includes a box body (322) and a blower (324). The box body (322) is arranged on one side of the heating furnace body (1), and the blower (324) is installed inside the box body (322).

6. A vacuum heating furnace according to claim 5, characterized in that: The temperature rising component (34) includes a shield (342), an electric heating wire (344), and an air outlet pipe (346). The shield (342) is fixed inside the box body (322), the electric heating wire (344) is fixed inside the shield (342), the shield (342) is communicated with the output end of the blower (324), the air outlet pipe (346) penetrates through the box body (322), one end of the air outlet pipe (346) is communicated with the shield (342), and the other end of the air outlet pipe (346) is communicated with the heating furnace body (1).

7. A vacuum heating furnace according to claim 6, characterized in that: Three air outlet pipes (346) are provided, and ventilation holes are formed in the box body (322).

8. A vacuum heating furnace according to claim 6, characterized in that: A first connection hole (347) and a second connection hole (348) are formed in the shield (342).

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