Hot air circulation mechanism of box-type heat treatment furnace capable of adjusting air volume

Abstract

The utility model relates to a box-type heat treatment furnace hot air circulation mechanism capable of adjusting the air volume. The box-type heat treatment furnace hot air circulation mechanism comprises a heat treatment furnace, a drying chamber arranged in the heat treatment furnace and a hot air circulation pipe structure arranged on the inner wall of the heat treatment furnace and communicated with the drying chamber, and an adjusting device used for adjusting the air volume is arranged in the drying chamber. According to the hot air circulation mechanism of the box-type heat treatment furnace capable of adjusting the air volume, a plurality of communicating pipes are arranged in the heat treatment furnace, and hot air is uniformly distributed in the communicating pipes by adopting distribution pipes, so that the hot air is uniformly supplied into the heat treatment furnace, and blocking curtains, mounting plates and bending rods are arranged in the communicating pipes; according to the device, the quantity of hot air introduced into the communicating pipe can be adjusted, the adjustability of the device is improved, the hot air is evenly distributed again through the multiple distributed air outlets after entering the communicating pipe, hot air outlet is still even, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of box-type heat treatment furnaces, and in particular to a hot air circulation mechanism for a box-type heat treatment furnace capable of adjusting air volume. Background Art

[0002] Box-type heat treatment furnace is a kind of equipment used for heat treatment of metal materials. It usually consists of a closed box and heating elements, which can provide a high temperature environment to heat, keep warm and cool the metal. Box-type heat treatment furnace is widely used in metal processing, automobile manufacturing, aerospace and other industrial fields to change the physical and chemical properties of metal materials to improve their hardness, strength, wear resistance and corrosion resistance.

[0003] Referring to the utility model with announcement number CN216845697U, a hot air circulation mechanism of a box-type heat treatment furnace includes a circulating fan arranged on the top of a furnace body, an air guide hood mounted on the outside of an impeller of the circulating fan, a furnace top air guide plate fixed to the upper end of the air guide hood and covered on the outside of the air guide hood, an air guide plate mounting frame vertically fixed below the furnace top air guide plate and located on the left and right sides of the furnace body, and side air guide components symmetrically mounted on the upper, middle and lower parts of the air guide plate mounting frames on both sides. The utility model adjusts the circulating air volume in the upper, middle and lower parts of the furnace body through the side air guide components, thereby adjusting the temperature in the furnace, making the temperature in the furnace more uniform and improving the quality of heat treatment of workpieces.

[0004] The above patent arranges an insulation bag to guide the hot air to improve the uniformity of the hot air distribution in the heat treatment furnace. However, the air volume in the heat treatment furnace will become uneven under the above hot air circulation method, making the hot air circulation air volume adjustment also not uniform. In this regard, a hot air circulation mechanism for a box-type heat treatment furnace with adjustable air volume is proposed to solve the above-mentioned problem. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a hot air circulation mechanism for a box-type heat treatment furnace with adjustable air volume, which has the advantages of being able to evenly distribute hot air and improve the uniformity of heat distribution while improving the convenience of air volume regulation.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a hot air circulation mechanism of a box-type heat treatment furnace for adjusting the air volume, comprising a heat treatment furnace, a drying chamber built in the heat treatment furnace, and a hot air circulation pipe structure arranged on the inner wall of the heat treatment furnace and connected to the drying chamber, wherein an adjusting device for adjusting the air volume is arranged inside the drying chamber;

[0007] The regulating device comprises a connecting pipe fixedly mounted on the inner wall of the drying chamber, a shielding member arranged in the connecting pipe for blocking the hot air flow surface, and an regulating mechanism for adjusting the shielding member;

[0008] The connecting pipe is provided with ventilation holes on one side surface facing the distribution pipe, and the connecting pipe is provided with air outlets on one side surface facing the inner wall of the drying chamber, and the number of the ventilation holes and the number of the air outlets are both several.

[0009] Furthermore, the air circulation pipe structure includes a hot air blower fixedly installed on the top of the heat treatment furnace as a hot air source, an air duct joint connected to the hot air blower, and a distribution pipe connected to the air duct joint, and the distribution pipe is in an inverted U shape and fits to the outside of the drying chamber.

[0010] Furthermore, the shielding member includes a rack slidably mounted on the upper and lower sides of the connecting pipe, a bending rod fixedly mounted on the end of the rack, a mounting plate fixedly mounted on the connecting pipe, and a blocking curtain mounted between the mounting plate and the bending rod.

[0011] Furthermore, the bending rod is vertically fixedly connected to the rack and the bending rod is parallel to the mounting plate.

[0012] Furthermore, the adjustment mechanism includes a gear rotatably installed in the connecting pipe and a connecting pin slidably connected to the gear, and the upper and lower ends of the gear are respectively meshed with the two racks.

[0013] Furthermore, a plug hole extending to the connecting pipe is opened through the middle of the gear, the connecting pin is slidably connected to the plug hole, and the connecting pin and the plug hole are both hexagonal.

[0014] Furthermore, an adjusting wheel is fixedly mounted on one end of the connecting pin, and the adjusting wheel is located outside the connecting pipe.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The hot air circulation mechanism of the box-type heat treatment furnace with adjustable air volume is achieved by arranging a plurality of connecting pipes in the heat treatment furnace and using distribution pipes to evenly distribute the hot air in the connecting pipes, thereby realizing even supply of hot air in the heat treatment furnace. By arranging a blocking curtain, a mounting plate and a bending rod in the connecting pipe, the amount of hot air entering the connecting pipe can be adjusted, thereby improving the adjustability of the device. After the hot air enters the connecting pipe, it is evenly distributed again by a plurality of distributed air outlets, thereby making the hot air outlet still relatively even, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a three-dimensional diagram of the overall structure of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the drying room for this application;

[0019] Figure 3 This is a schematic diagram of the structure of the connecting pipe of this application;

[0020] Figure 4 This is a schematic diagram of the connecting pin structure of this application.

[0021] In the figure: 1. heat treatment furnace; 2. drying chamber; 3. hot air blower; 4. air duct joint; 5. distribution pipe; 6. connecting pipe; 7. ventilation hole; 8. air outlet; 9. gear; 10. rack; 11. mounting plate; 12. bending rod; 13. blocking curtain; 14. socket; 15. connecting pin; 16. adjusting wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] See also Figure 1-4 In this embodiment, a hot air circulation mechanism of a box-type heat treatment furnace for adjusting the air volume includes a heat treatment furnace 1, a drying chamber 2 built into the heat treatment furnace 1, and a hot air circulation pipe structure arranged on the inner wall of the heat treatment furnace 1 and connected to the drying chamber 2.

[0024] In this embodiment, the hot air circulation pipe structure includes a hot air blower 3 fixedly installed on the top of the heat treatment furnace 1 as a hot air source, a duct joint 4 connected to the hot air blower 3, and a distribution pipe 5 connected to the duct joint 4. The distribution pipe 5 is in an inverted U shape and fits the outside of the drying chamber 2. Through the mutual connection between the distribution pipe 5 and the drying chamber 2, the hot air can be evenly distributed in the drying chamber 2 and the circulating heat treatment can be completed.

[0025] It should be noted that an adjusting device for adjusting the air output is provided inside the drying chamber 2, and the adjusting device includes a connecting pipe 6 fixedly mounted on the inner wall of the drying chamber 2, a shielding member provided in the connecting pipe 6 for blocking the hot air flow surface, and an adjusting mechanism for adjusting the shielding member.

[0026] The connecting pipe 6 in this embodiment is provided with a ventilation hole 7 on one side surface facing the distribution pipe 5, and the connecting pipe 6 is provided with an air outlet 8 on one side surface facing the inner wall of the drying chamber 2. The number of ventilation holes 7 and air outlets 8 are both several. Through the several air outlets 8, the uniformity of distribution of hot air in the drying chamber 2 can be improved.

[0027] In this embodiment, the shielding member includes a rack 10 slidably mounted on the upper and lower sides of the connecting pipe 6, a bending rod 12 fixedly mounted at the end of the rack 10, a mounting plate 11 fixedly mounted on the connecting pipe 6, and a blocking curtain 13 mounted between the mounting plate 11 and the bending rod 12.

[0028] It should be noted that the bending rod 12 is vertically fixedly connected to the rack 10 and is parallel to the mounting plate 11 . The blocking curtain 13 is a metal bending plate that can be opened under pulling to block the ventilation hole 7 .

[0029] In this embodiment, the adjustment mechanism includes a gear 9 rotatably installed in the connecting pipe 6 and a connecting pin 15 slidably connected to the gear 9. The upper and lower ends of the gear 9 are respectively meshed with two racks 10, and the two racks 10 can be driven by the rotation of the gear 9 to adjust their positions relative to the connecting pipe 6.

[0030] In this embodiment, a socket 14 extending to the connecting pipe 6 is opened through the middle of the gear 9, and a connecting pin 15 is slidably connected to the socket 14, and both the connecting pin 15 and the socket 14 are hexagonal, so that the rotation of the connecting pin 15 relative to the gear 9 is limited.

[0031] Specifically, during use, by continuously pushing and inserting the connecting pin 15 into the inner wall of the connecting pipe 6, the rotation of the gear 9 can be restricted and the locking can be completed.

[0032] It should be noted that an adjusting wheel 16 is fixedly mounted on one end of the connecting pin 15 . The adjusting wheel 16 is located outside the connecting pipe 6 , and the connecting pin 15 can be conveniently driven to rotate by the adjusting wheel 16 .

[0033] The working principle of the above embodiment is:

[0034] By pulling the adjusting wheel 16 located outside the connecting pipe 6 out of the restriction of the inner wall of the connecting pipe 6, the adjusting wheel 16 is rotated at this time, so that the adjusting wheel 16 drives the connecting pin 15 to rotate, and the connecting pin 15 drives the gear 9 to rotate in the connecting pipe 6 under the rotation, and the gear 9 drives the two racks 10 located in the connecting pipe 6 to slide under the rotation, and the two bending rods 12 at the ends of the racks 10 move, and the bending rods 12 move away from the mounting plate 11, thereby stretching the blocking curtain 13 located between the mounting plate 11 and the bending rods 12 to unfold, so that the ventilation holes 7 opened in the connecting pipe 6 can be blocked, so that the amount of hot air flowing through the air outlet 8 can be adjusted.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hot air circulation mechanism for a box-type heat treatment furnace capable of adjusting air volume, comprising a heat treatment furnace (1), a drying chamber (2) built in the heat treatment furnace (1), and a hot air circulation pipe structure arranged on the inner wall of the heat treatment furnace (1) and connected to the drying chamber (2), characterized in that: The drying chamber (2) is provided with an adjusting device for adjusting the air output; The regulating device comprises a connecting pipe (6) fixedly mounted on the inner wall of the drying chamber (2), a shielding member arranged in the connecting pipe (6) for blocking the hot air flow surface, and an regulating mechanism for adjusting the shielding member; The connecting pipe (6) is provided with a ventilation hole (7) on one side surface facing the distribution pipe (5), and the connecting pipe (6) is provided with an air outlet (8) on one side surface facing the inner wall of the drying chamber (2), and the number of the ventilation hole (7) and the number of the air outlet (8) are both several.

2. The hot air circulation mechanism of a box-type heat treatment furnace for adjusting air volume according to claim 1, characterized in that: The air circulation pipe structure comprises a hot air blower (3) fixedly installed on the top of the heat treatment furnace (1) as a source of hot air, an air duct joint (4) connected to the hot air blower (3), and a distribution pipe (5) connected to the air duct joint (4), wherein the distribution pipe (5) is in an inverted U shape and is attached to the outside of the drying chamber (2).

3. The hot air circulation mechanism of a box-type heat treatment furnace for adjusting air volume according to claim 1, characterized in that: The shielding member comprises a rack (10) slidably mounted on the upper and lower sides of the connecting pipe (6), a bending rod (12) fixedly mounted on the end of the rack (10), a mounting plate (11) fixedly mounted on the connecting pipe (6), and a blocking curtain (13) mounted between the mounting plate (11) and the bending rod (12).

4. The hot air circulation mechanism of a box-type heat treatment furnace for adjusting air volume according to claim 3, characterized in that: The bending rod (12) is vertically fixedly connected to the rack (10), and the bending rod (12) is parallel to the mounting plate (11).

5. The hot air circulation mechanism of a box-type heat treatment furnace for adjusting air volume according to claim 3, characterized in that: The regulating mechanism comprises a gear (9) rotatably mounted in the connecting pipe (6) and a connecting pin (15) slidably connected to the gear (9); the upper and lower ends of the gear (9) are respectively meshed with the two racks (10).

6. The hot air circulation mechanism of a box-type heat treatment furnace capable of adjusting air volume according to claim 5, characterized in that: A plug hole (14) extending to the connecting pipe (6) is provided through the middle of the gear (9), the connecting pin (15) is slidably connected to the plug hole (14), and both the connecting pin (15) and the plug hole (14) are hexagonal.

7. The hot air circulation mechanism of a box-type heat treatment furnace capable of adjusting air volume according to claim 6, characterized in that: An adjusting wheel (16) is fixedly mounted on one end of the connecting pin (15), and the adjusting wheel (16) is located outside the connecting pipe (6).

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