Multi-layer heat treatment furnace

Abstract

The utility model discloses a multilayer heat treatment furnace which comprises a heat treatment furnace body, positioning columns are fixedly connected to the two sides of the interior of the heat treatment furnace body, four mounting frames are arranged between the positioning columns on the two sides, and connecting blocks are fixedly connected to the two side walls of each mounting frame. In the actual use process, in the heat treatment furnace, the mounting frame moves on the positioning columns through the connecting sleeves, height adjustment is achieved so as to adapt to different workpieces, during moving, the sliding blocks are limited in the sliding grooves, it is guaranteed that the directions are consistent, one ends of the clamping columns incline and do not stop when passing through the racks, and the springs enable the clamping columns to continuously bounce outwards to reset and be clamped on the racks; according to the device, the problems that an installation frame in an existing heat treatment furnace is inconvenient to adjust and poor in stability are solved, all parts of the structure are matched, rapid adjustment and stable positioning are achieved, workpieces are heated more evenly, and heat treatment consistency and working efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of multi-layer heat treatment furnace technology, specifically a multi-layer heat treatment furnace. Background Technology

[0002] A multi-layer heat treatment furnace is an important piece of equipment for improving material properties. It features a robust outer shell and an internal multi-layer furnace bed, each capable of independently holding workpieces, significantly increasing the throughput per batch. The heating system employs highly efficient heating elements, enabling rapid heating and precise temperature control. A temperature and atmosphere control system monitors and adjusts furnace parameters in real time, ensuring uniform and stable temperature and atmosphere across all layers. The loading and unloading device is rationally designed for easy placement and removal of workpieces. By optimizing its structure, this equipment effectively addresses issues such as uneven heat distribution and is widely used in machinery manufacturing, automotive, and aerospace industries, providing a reliable guarantee for high-quality heat treatment of various workpieces.

[0003] A search revealed that Chinese patent CN221662986U discloses a multi-layer heat treatment furnace. This patent describes a system with a scissor-type lifting frame. The scissor-type lifting frame drives an L-shaped rectangular strip through a conveyor roller assembly to descend below the workpiece. The bottom of the workpiece is then held by a bidirectional screw and motor, and the scissor-type lifting frame lifts it up. A transverse component moves the workpiece through a rectangular opening from the first layer to the second layer for cooling. Compared to similar cases, this heat treatment furnace has a multi-layer structure, eliminating the need to transfer the workpiece outside the furnace for heat treatment, thus saving overall process time. Furthermore, it avoids direct contact between workers and the high-temperature workpiece, preventing potential health risks from improper handling during transfer.

[0004] While this solution facilitates the transfer and cooling of workpieces, the fixed spacing between each layer makes it impossible to adjust the load layers when placing workpieces of different sizes. This results in uneven heating of the workpieces and a significant reduction in work efficiency. To address this technical problem, this invention proposes a multi-layer heat treatment furnace. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] While this solution facilitates the transfer and cooling of workpieces, the fixed spacing between each layer makes it impossible to adjust the load layers when placing workpieces of different sizes. This results in uneven heating of the workpieces and a significant reduction in work efficiency. To address this technical problem, this invention proposes a multi-layer heat treatment furnace.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer heat treatment furnace, comprising a heat treatment furnace, wherein positioning columns are fixedly connected to both sides of the interior of the heat treatment furnace, and four mounting frames are arranged between the positioning columns on both sides. Each mounting frame has a connecting block fixedly connected to both side walls, and a connecting sleeve is fixedly connected to the other end of each connecting block. The connecting sleeve is slidably connected to the outside of the positioning column. A toothed rack is provided on both sides of the positioning column, and a bracket is fixedly connected to both outer walls of the connecting sleeve. A locking post is slidably connected inside each bracket, and a spring is sleeved on the outer wall of the locking post. The spring is fixedly connected between the bracket and the connecting sleeve, and the locking post penetrates the connecting sleeve and extends into the interior of the connecting sleeve.

[0009] Preferably, each of the locking pins has a handle fixedly connected to one end, the other end of the locking pin is inclined, the rack is inclined, and the rack corresponds to the locking pin.

[0010] Preferably, a pair of sliders are fixedly connected to both sides of the mounting frame, and a pair of sliding grooves are provided on the inner wall of the heat treatment furnace, with the sliders slidably connected in the sliding grooves.

[0011] Preferably, each of the mounting frames is provided with a carrying frame inside, and the two side walls of the carrying frame are fixedly connected to limit plates. The two sides of the mounting frame are provided with inner grooves, and the inner grooves correspond to the limit plates. At the same time, the limit plates are slidably connected in the inner grooves.

[0012] Preferably, a handle is fixedly connected to the outer wall of the carrying frame, and a pair of insertion holes are provided on one side of the mounting frame. The carrying frame is connected to the mounting frame by a pin, and the pin is slidably connected in the insertion hole.

[0013] Preferably, an electric heating device is provided at the bottom of the heat treatment furnace, and the connecting block is slidably connected inside the heat treatment furnace.

[0014] (III) Beneficial Effects

[0015] This utility model provides a multi-layer heat treatment furnace. It has the following beneficial effects:

[0016] (1) In the heat treatment furnace, the mounting frame moves on the positioning column through the connecting sleeve to achieve height adjustment to adapt to different workpieces. When moving, the slider is limited in the slide groove to ensure consistent direction. One end of the locking column is tilted, and when moving upward, it does not get stuck when passing through the rack. The spring makes it continuously bounce outward and reset to lock in the rack to prevent the frame from sliding down. The bracket provides support. This device solves the problems of inconvenient adjustment and poor stability of the mounting frame in the existing heat treatment furnace. The components of this structure cooperate to achieve rapid adjustment and stable positioning, so that the workpiece is heated more evenly, improving the consistency of heat treatment and work efficiency.

[0017] (2) When using the loading frame, hold the handle and insert the limiting plates on both sides of the loading frame into the inner groove. After insertion, insert the pin into the socket to fix the loading frame in place. When disassembling, pull out the pin to remove the loading frame. The handle makes it easy to move the loading frame. This structure solves the problem of inconvenient installation and disassembly of existing loading devices. Traditional loading devices require complex tools or multiple steps to install, and disassembly is also cumbersome. This structure achieves quick assembly and disassembly through simple component cooperation, which facilitates the placement and removal of workpieces, improves work efficiency, and the handle design makes handling easier. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall front view of the present invention;

[0020] Figure 3 This is a top view of the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the connecting sleeve of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the mounting frame of this utility model.

[0023] In the diagram: 1. Heat treatment furnace; 2. Positioning column; 3. Rack; 4. Mounting frame; 5. Connecting sleeve; 6. Bracket; 7. Locking post; 8. Spring; 9. Slider; 10. Slide groove; 11. Loading frame; 12. Handle; 13. Limiting plate; 14. Inner groove; 15. Pin; 16. Insertion hole; 17. Handle; 18. Electric heating device; 19. Connecting block. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Please see Figure 1-5 This utility model provides a technical solution:

[0026] Example 1: A multi-layer heat treatment furnace includes a heat treatment furnace 1. Positioning columns 2 are fixedly connected to both sides of the interior of the heat treatment furnace 1. Four mounting frames 4 are arranged between the two positioning columns 2. Connecting blocks 19 are fixedly connected to both sides of each mounting frame 4. A connecting sleeve 5 is fixedly connected to the other end of each connecting block 19, and the connecting sleeve 5 is slidably connected to the outside of the positioning columns 2. A rack 3 is provided on both sides of the positioning columns 2. A bracket 6 is fixedly connected to both sides of the outer wall of the connecting sleeve 5. A locking post 7 is slidably connected inside each bracket 6. A spring 8 is sleeved on the outer wall of the locking post 7, and the spring 8 is fixedly connected between the bracket 6 and the connecting sleeve 5. The locking post 7 penetrates the connecting sleeve 5 and extends into the interior of the connecting sleeve 5. A handle 17 is fixedly connected to one end of each locking post 7, and the other end of the locking post 7 is inclined. The rack 3 is inclined and corresponds to the locking post 7. A pair of sliders 9 are fixedly connected to both sides of the mounting frame 4. A pair of sliding grooves 10 are opened on the inner wall of the heat treatment furnace 1, and the sliders 9 are slidably connected within the sliding grooves 10.

[0027] When the mounting frame 4 needs to be adjusted according to the size of the workpiece, simply push the mounting frame 4 upwards. The mounting frame 4, with the help of the connecting sleeve 5 on the connecting block 19, can move flexibly up and down on the positioning post 2. During the upward movement, because one end of the locking post 7 is inclined, the locking post 7 will not be stuck when passing the rack 3, and the locking post 7 will continuously pop outwards, while simultaneously resetting itself by the elastic force of the spring 8, re-locking onto the rack 3, effectively preventing the mounting frame 4 from sliding down after adjustment. In addition, when the mounting frame 4 moves, the slider 9 acts as a limit within the slide groove 10, ensuring that its movement direction remains consistent. These components work together to achieve rapid adjustment of the mounting frame 4, thereby allowing each layer of workpieces to be heated evenly and improving the consistency of heat treatment.

[0028] Example 2: The difference between this example and Example 1 is that each mounting frame 4 has a loading frame 11 inside, and the two side walls of the loading frame 11 are fixedly connected to limit plates 13. The two sides of the mounting frame 4 are provided with inner grooves 14, and the inner grooves 14 correspond to the limit plates 13. At the same time, the limit plates 13 are slidably connected in the inner grooves 14. The outer side wall of the loading frame 11 is fixedly connected to a handle 12. A pair of insertion holes 16 are provided on one side of the mounting frame 4. The loading frame 11 is connected to the mounting frame 4 through a pin 15. At the same time, the pin 15 is slidably connected in the insertion holes 16. An electric heating device 18 is provided at the bottom of the heat treatment furnace 1, and a connecting block 19 is slidably connected in the heat treatment furnace 1.

[0029] When operating the work frame 11, first pull out the pin 15 upwards. Then, holding the handle 12, precisely align the limiting plates 13 on both sides of the work frame 11 with the inner groove 14, and slowly insert them until they reach the bottom. After insertion, insert the pin 15 into the corresponding hole 16 to limit and fix the work frame 11. Through the coordinated operation of these components, the work frame 11 can be quickly assembled and disassembled. After installing the work frame 11, place the workpiece inside the work frame 11, and then start the electric heating device 18. The electric heating device 18 will then begin to operate and perform heat treatment on the workpiece. This convenient operation process effectively improves work efficiency.

[0030] Working principle: When using this device to heat treat a workpiece, the workpiece is first placed inside the heat treatment furnace 1. The mounting frame 4 is then adjusted according to the size of the workpiece. Pushing the mounting frame 4 upwards causes it to move up and down on the positioning column 2 via the connecting sleeve 5 on the connecting block 19. During upward movement, because one end of the locking column 7 is tilted, it will not get stuck on the rack 3. Furthermore, the locking column 7 will continuously spring outwards, working in conjunction with the elasticity of the spring 8 to reset and lock onto the rack 3, preventing the mounting frame 4 from sliding down after adjustment. During movement, the mounting frame 4 is limited within the slide groove 10 by the slider 9. To ensure consistent movement, their cooperation enables rapid adjustment of the mounting frame 4, allowing each workpiece to receive more uniform heat and improving the consistency of heat treatment. After adjustment, pull out the pin 15 upwards, and use the handle 12 to align the limiting plates 13 on both sides of the carrying frame 11 with the inner groove 14 and insert them to the bottom. Then, insert the pin 15 into the insertion hole 16 to limit and fix the carrying frame 11. Through their cooperation, rapid assembly and disassembly of the carrying frame 11 are achieved. After installation, place the workpiece in the carrying frame 11 and start the electric heating device 18 to begin heat treatment of the workpiece, improving work efficiency.

[0031] It should be noted that in this paper, relational terms such as first and second are used only 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.

Claims

1. A multi-layer heat treatment furnace, characterized in that: The device includes a heat treatment furnace (1), with positioning columns (2) fixedly connected to both sides inside the heat treatment furnace (1). Four mounting frames (4) are provided between the positioning columns (2) on both sides. Each mounting frame (4) has a connecting block (19) fixedly connected to both sides. Each connecting block (19) has a connecting sleeve (5) fixedly connected to the other end. The connecting sleeve (5) is slidably connected to the outside of the positioning column (2). A rack (3) is provided on both sides of the positioning column (2). A bracket (6) is fixedly connected to both sides of the outer wall of the connecting sleeve (5). A locking post (7) is slidably connected inside each bracket (6). A spring (8) is sleeved on the outer wall of the locking post (7). The spring (8) is fixedly connected between the bracket (6) and the connecting sleeve (5). The locking post (7) penetrates the connecting sleeve (5) and extends into the inside of the connecting sleeve (5).

2. The multi-layer heat treatment furnace according to claim 1, characterized in that: Each of the locking pins (7) has a handle (17) fixedly connected to one end. The other end of the locking pin (7) is inclined. The rack (3) is inclined and corresponds to the locking pin (7).

3. A multi-layer heat treatment furnace according to claim 2, characterized in that: A pair of sliders (9) are fixedly connected to both sides of the mounting frame (4), and a pair of sliding grooves (10) are opened on the inner wall of the heat treatment furnace (1), and the sliders (9) are slidably connected in the sliding grooves (10).

4. A multi-layer heat treatment furnace according to claim 3, characterized in that: Each of the mounting frames (4) is provided with a loading frame (11) inside. The two side walls of the loading frame (11) are fixedly connected with a limiting plate (13). The two sides of the mounting frame (4) are provided with an inner groove (14), and the inner groove (14) corresponds to the limiting plate (13). At the same time, the limiting plate (13) is slidably connected in the inner groove (14).

5. A multi-layer heat treatment furnace according to claim 4, characterized in that: The outer wall of the carrying frame (11) is fixedly connected to a handle (12), and a pair of insertion holes (16) are provided on one side of the mounting frame (4). The carrying frame (11) is connected to the mounting frame (4) by a pin (15), and the pin (15) is slidably connected in the insertion hole (16).

6. A multi-layer heat treatment furnace according to claim 1, characterized in that: An electric heating device (18) is provided at the bottom of the heat treatment furnace (1), and the connecting block (19) is slidably connected inside the heat treatment furnace (1).

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