Vacuum furnace with feeding mechanism

By designing a vacuum furnace with a feeding mechanism, including a transmission device and a vacuum pipe, the problem of continuous material delivery during heating in the vacuum furnace was solved, achieving continuous material delivery and maintenance of the vacuum state, thus improving work efficiency.

CN223649663UActive Publication Date: 2025-12-09DENGFENG SONGKAI HIGH TEMPERATURE COMPONENTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423261982.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-09
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing vacuum furnaces cannot continuously deliver materials during heating, and the vacuum state is easily disrupted during material delivery, wasting time and effort.

Method used

A vacuum furnace with a feeding mechanism was designed, including a conveying device, a geared motor, a hydraulic rod, and an air extraction pipe. The conveying device enables continuous material transport, while the air extraction pipe maintains a vacuum state. The heating device in the vacuum state heats the material, thus achieving continuous material transport.

Benefits of technology

It enables continuous material transport and vacuum maintenance within the vacuum furnace, saving staff time and effort.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223649663U_ABST
    Figure CN223649663U_ABST
Patent Text Reader

Abstract

The vacuum furnace with the feeding mechanism comprises a main furnace body, a vertical partition plate is fixedly connected in the main furnace body, two sets of partition plates are fixedly connected between the vertical partition plate and the rear side wall of the main furnace body, heat insulation plates are fixedly connected to the inner wall of the main furnace body, the inner side of the vertical partition plate and the two sides of each partition plate, and the heat insulation plates are fixedly connected to the inner wall of the main furnace body. A conveying device is rotationally connected between the vertical partition plate and the rear side wall of the main furnace body, two gates are slidably connected to the top of the main furnace body, and the gates are located over the two partition plates. Compared with the prior art, by means of the design of the main furnace body and the conveying device, materials can still be continuously conveyed inwards when being heated in the vacuum furnace, the vacuum state in the vacuum furnace can be guaranteed when the materials are conveyed, and the conveying efficiency is improved. The time and energy of workers are saved, and the practicability is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of vacuum furnace technology, specifically a vacuum furnace with a feeding mechanism. Background Technology

[0002] A vacuum furnace is a device that performs heat treatment in a vacuum environment. It has multiple functions and uses. As one of the equipment upgrades in the heat treatment industry, the important reason for its popularity is that the materials processed in a vacuum furnace have a bright, non-oxidized surface, good performance, and high precision. Vacuum furnaces are easy to operate in terms of energy saving, consumption reduction, and pollution reduction. They are clean production equipment and meet the requirements of today's environmental protection. Vacuum furnaces have wide applications in materials science, electronics industry, aerospace, chemical industry and other fields. By creating an oxygen-free or low-oxygen environment, they process and modify materials at high temperatures, thereby improving the performance and quality of the materials.

[0003] When using existing vacuum furnaces, materials cannot be continuously fed into the furnace while it is being heated. Furthermore, the vacuum state inside the furnace is easily disrupted during material feeding, making it difficult to transport and remove materials. This results in a significant waste of time and effort for staff.

[0004] Therefore, this utility model provides a vacuum furnace with a feeding mechanism to solve the problems mentioned above. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model designs a vacuum furnace with a feeding mechanism. The purpose of this vacuum furnace with a feeding mechanism is to solve the technical problem that the material cannot be continuously fed into the vacuum furnace when it is heated in the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vacuum furnace with a feeding mechanism includes a main furnace body. A vertical partition is fixedly connected inside the main furnace body. Two sets of partition plates are fixedly connected between the vertical partition and the rear side wall of the main furnace body. Insulation plates are fixedly connected to the inner wall of the main furnace body, the inner side of the vertical partition, and both sides of the partition plates. A transmission device is rotatably connected between the vertical partition and the rear side wall of the main furnace body. Two sets of gates are slidably connected to the top of the main furnace body, and the gates are located directly above the two sets of partition plates.

[0008] The transmission device includes rotating rollers, a first pulley, a sprocket, a chain, a first transmission belt, and a second transmission belt. All six sets of rotating rollers are rotatably connected between the vertical partition and the rear side wall of the main furnace body. The first pulley is fixedly connected to the central shaft of the first set of rotating rollers. The four sets of sprockets are respectively fixedly connected to the central shafts of the second, third, fourth, and fifth sets of rotating rollers. The two sets of chains are respectively sleeved on the outside of the second and third sets of sprockets, and the four sets of first transmission belts are respectively sleeved on the outside of the first and second sets and the fifth and sixth sets of rotating rollers. The second transmission belt is sleeved on the outside of the second and third sets of rotating rollers.

[0009] As a preferred embodiment of this utility model, a reduction motor is fixedly connected to the bottom of the inner side of the main furnace body, and a second pulley is fixedly connected to the output shaft of the reduction motor. A transmission belt is sleeved on the outer side of the second pulley and the first pulley.

[0010] As a preferred embodiment of this utility model, the second conveyor belt is made of high-temperature resistant metal material, and several through holes are opened on the surface of the second conveyor belt. Heating devices are fixedly connected to the inner side of the main furnace body, both above and below the second conveyor belt.

[0011] As a preferred embodiment of this utility model, an auxiliary block is fixedly connected to the top of the partition plate, and an arc-shaped groove is provided on both sides of the auxiliary block.

[0012] As a preferred embodiment of this utility model, a crossbeam is fixedly connected to the top of the gate, and hydraulic rods are fixedly connected to both the front and rear ends of the crossbeam, with the bottom end of the hydraulic rods fixedly connected to the outer wall of the main furnace body.

[0013] As a preferred embodiment of this utility model, an observation glass is fixedly embedded on the front of the main furnace body and above the second conveyor belt, and furnace doors are rotatably connected to the left and right sides of the front of the main furnace body and above the observation glass, with sealing strips fixedly connected to the inner side of the furnace doors.

[0014] As a preferred embodiment of this utility model, three sets of exhaust pipes are fixedly connected to the back of the main furnace body, and a vacuum pump is fixedly connected to the bottom of the inner side of the main furnace body. All three sets of exhaust pipes are connected to the vacuum pump.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention, through the design of the main furnace body and the conveying device, allows for efficient operation. First, the furnace door on the left side of the main furnace body is opened, and the material to be processed is placed onto the first conveyor belt on the left side of the main furnace body. The furnace door is then closed, and the gate is opened via a hydraulic rod. The reduction motor is then started, driving the conveying device to transfer the material from the first conveyor belt to the second conveyor belt. The gate is then closed again. Air inside the main furnace body is extracted by a vacuum pump through three sets of extraction pipes, maintaining an oxygen-free or low-oxygen environment inside the main furnace body. This allows the heating device to heat the material. Even while the material is being heated in the vacuum furnace, it can still be continuously conveyed, ensuring a vacuum state within the furnace. This saves time and effort for operators and increases practicality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the back of the overall structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Main furnace body; 2. Vertical partition; 3. Partition plate; 4. Heat insulation plate; 5. Transmission device; 501. Rotating roller; 502. First pulley; 503. Sprocket; 504. Chain; 505. First transmission belt; 506. Second transmission belt; 6. Gate; 7. Gear motor; 8. Second pulley; 9. Transmission belt; 10. Through hole; 11. Heating device; 12. Auxiliary block; 13. Arc groove; 14. Crossbeam; 15. Hydraulic rod; 16. Observation glass; 17. Furnace door; 18. Sealing strip; 19. Evacuation pipe; 20. Vacuum pump. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] This utility model embodiment provides a vacuum furnace with a feeding mechanism, which aims to solve the technical problem that materials cannot be continuously fed into the vacuum furnace when it is heated.

[0025] Please see Figures 1-4 This utility model provides a technical solution:

[0026] A vacuum furnace with a feeding mechanism includes a main furnace body 1. A vertical partition 2 is fixedly connected inside the main furnace body 1. Two sets of partition plates 3 are fixedly connected between the vertical partition 2 and the rear side wall of the main furnace body 1. Heat insulation plates 4 are fixedly connected to the inner wall of the main furnace body 1, the inner side of the vertical partition 2, and both sides of the partition plates 3. The heat insulation plates 4 can isolate the temperature. A transmission device 5 is rotatably connected between the vertical partition 2 and the rear side wall of the main furnace body 1. Two sets of gates 6 are slidably connected to the top of the main furnace body 1. The gates 6 are located directly above the two sets of partition plates 3. When the gates 6 and the partition plates 3 are closed, they can divide the main furnace body 1 into three areas, making the temperature of the heating area inside the furnace more stable.

[0027] First, please refer to Figure 1 , Figure 3 and Figure 4 The specific structure of the transmission device 5 is as follows:

[0028] The transmission device 5 includes a rotating roller 501, a first pulley 502, a sprocket 503, a chain 504, a first transmission belt 505, and a second transmission belt 506. All six sets of rotating rollers 501 are rotatably connected between the vertical partition 2 and the rear side wall of the main furnace body 1. The first pulley 502 is fixedly connected to the central shaft of the first set of six rotating rollers 501. The four sets of sprockets 503 are respectively fixedly connected to the central shafts of the second, third, fourth, and fifth sets of six rotating rollers 501. The two sets of chains 504 are respectively sleeved on the outside of the second and third sets and the fourth and fifth sets of sprockets 503. The two sets of first transmission belts 505 are respectively sleeved on the outside of the first and second sets and the fifth and sixth sets of six rotating rollers 501. The second transmission belt 506 is sleeved on the outside of the second and third sets of six rotating rollers 501.

[0029] In use, the first pulley 502 rotates under the drive of the transmission belt 9. When the first pulley 502 rotates, it drives the first transmission belt 505 to run. After the first transmission belt 505 runs, it drives the sprocket 503 on the central shaft to rotate through the rotating roller 501 at the right end. When the sprocket 503 rotates, it drives the chain 504 to run. When the chain 504 runs, it drives the next set of sprockets 503 to rotate. When the sprocket 503 rotates, it drives the rotating roller 501 to rotate, thereby driving the second transmission belt 506 to run. Similarly, when the second transmission belt 506 runs, it can drive the first transmission belt 505 on the right side to run through the cooperation of the sprocket 503 and the chain 504, thereby enabling the entire transmission device 5 to transport materials.

[0030] For further details, please refer to Figure 3 A reduction motor 7 is fixedly connected to the bottom of the inner side of the main furnace body 1. A second pulley 8 is fixedly connected to the output shaft of the reduction motor 7. A transmission belt 9 is sleeved on the outer side of the second pulley 8 and the first pulley 502. In the process of use, after the reduction motor 7 is started, the reduction motor 7 drives the second pulley 8 to rotate. When the second pulley 8 rotates, it drives the transmission belt 9 to rotate. When the transmission belt 9 rotates, it drives the first pulley 502 to rotate, thereby driving the transmission device 5 to run.

[0031] For further details, please refer to Figure 3 and Figure 4 The second conveyor belt 506 is made of high-temperature resistant metal material. Several through holes 10 are opened on the surface of the second conveyor belt 506. Heating devices 11 are fixedly connected to the inner side of the main furnace body 1, above and below the second conveyor belt 506. During use, when the material is on the second conveyor belt 506, the heating device 11 can heat the material. The several through holes 10 opened on the surface of the second conveyor belt 506 can ensure the flow of heat.

[0032] For further details, please refer to Figure 3 and Figure 4 An auxiliary block 12 is fixedly connected to the top of the partition plate 3. An arc-shaped groove 13 is provided on both sides of the auxiliary block 12. The auxiliary block 12 is located between the first conveyor belt 505 and the second conveyor belt 506. The arc-shaped grooves 13 on both sides of the auxiliary block 12 are adapted to the connection between the first conveyor belt 505 and the second conveyor belt 506, which can facilitate the transition of materials between the first conveyor belt 505 and the second conveyor belt 506.

[0033] For further details, please refer to Figure 1 , Figure 2 and Figure 3 A crossbeam 14 is fixedly connected to the top of the gate 6. Hydraulic rods 15 are fixedly connected to both the front and rear ends of the crossbeam 14. The bottom end of the hydraulic rods 15 is fixedly connected to the outer wall of the main furnace body 1. During use, when the hydraulic rods 15 are activated, the rise of the hydraulic rods 15 can drive the crossbeam 14 to rise. When the crossbeam 14 rises, it drives the gate 6 to rise, thereby opening the gate 6. This facilitates the transfer of materials from the first conveyor belt 505 on the left to the second conveyor belt 506, allowing the heating device 11 to heat the materials. Alternatively, it allows the processed materials on the second conveyor belt 506 to be transferred to the first conveyor belt 505 on the right, facilitating the removal of the processed materials.

[0034] For further details, please refer to Figure 1An observation glass 16 is fixedly embedded on the front of the main furnace body 1 and above the second conveyor belt 506. The observation glass 16 allows staff to easily observe the materials being processed inside the main furnace body 1. Furnace doors 17 are rotatably connected to the front of the main furnace body 1 and on both the left and right sides of the observation glass 16. A sealing strip 18 is fixedly connected to the inside of the furnace door 17, allowing for easy loading and unloading of materials.

[0035] For further details, please refer to Figure 2 and Figure 3 Three sets of exhaust pipes 19 are fixedly connected to the back of the main furnace body 1. A vacuum pump 20 is fixedly connected to the bottom of the inner side of the main furnace body 1. All three sets of exhaust pipes 19 are connected to the vacuum pump 20. The three sets of exhaust pipes 19 are respectively connected to the space separated by the partition plate 3 and the gate 6 inside the main furnace body 1. The air inside the main furnace body 1 is extracted by the vacuum pump 20 through the three sets of exhaust pipes 19, so that the inside of the main furnace body 1 is kept in an oxygen-free or low-oxygen environment.

[0036] The working process of this utility model:

[0037] In operation, the furnace door 17 on the left side of the main furnace body 1 is first opened, and the material to be processed is placed onto the first conveyor belt 505 on the left side of the main furnace body 1. Then, the furnace door 17 is closed, and the hydraulic rod 15 is activated. The hydraulic rod 15 rises, driving the crossbeam 14 to rise. When the crossbeam 14 rises, it drives the gate 6 to rise, thereby opening the gate 6. Then, the reduction motor 7 is activated, driving the second pulley 8 to rotate. When the second pulley 8 rotates, it drives the conveyor belt 9 to rotate. When the conveyor belt 9 rotates, it drives the first pulley 502 to rotate, thereby driving the conveying device 5 to operate, so that the material is transferred from the first conveyor belt 505 on the left side to the second conveyor belt 506. Finally, the gate is closed by the hydraulic rod 15. 6. Restart the vacuum pump 20. The air inside the main furnace body 1 is extracted by the vacuum pump 20 through three sets of extraction pipes 19, thereby maintaining an oxygen-free or low-oxygen environment inside the main furnace body 1. This allows the heating device 11 to heat and treat the material, processing and modifying it at high temperatures, thereby improving the material's performance and quality. The treated material is then transferred from the second conveyor belt 506 to the first conveyor belt 505 on the right side using the above method, facilitating the removal of the treated material. During use, the material can be continuously conveyed into the vacuum furnace while it is being heated, and the vacuum state inside the furnace can be maintained during material conveying, saving the time and effort of the staff and increasing its practicality.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum furnace with a feeding mechanism, comprising a main furnace body (1), characterized in that: The main furnace body (1) is fixedly connected to a vertical partition (2). Two sets of partition plates (3) are fixedly connected between the vertical partition (2) and the rear side wall of the main furnace body (1). Insulation plates (4) are fixedly connected to the inner wall of the main furnace body (1), the inner side of the vertical partition (2), and both sides of the partition plates (3). A transmission device (5) is rotatably connected between the vertical partition (2) and the rear side wall of the main furnace body (1). Two sets of gates (6) are slidably connected to the top of the main furnace body (1), and the gates (6) are located directly above the two sets of partition plates (3). The transmission device (5) includes a rotating roller (501), a first pulley (502), a sprocket (503), a chain (504), a first transmission belt (505), and a second transmission belt (506). All six sets of rotating rollers (501) are rotatably connected between the vertical partition (2) and the rear side wall of the main furnace body (1). The first pulley (502) is fixedly connected to the central shaft of the first set of the six sets of rotating rollers (501). The four sets of sprockets (503) are respectively fixedly connected to the central shafts of the second, third, fourth, and fifth sets of the six sets of rotating rollers (501). The two sets of chains (504) are respectively sleeved on the outside of the second and third sets and the fourth and fifth sets of sprockets (503). The two sets of first transmission belts (505) are respectively sleeved on the outside of the first and second sets and the fifth and sixth sets of the six sets of rotating rollers (501). The second transmission belt (506) is sleeved on the outside of the second and third sets of the six sets of rotating rollers (501).

2. A vacuum furnace with a feeding mechanism according to claim 1, characterized in that: A reduction motor (7) is fixedly connected to the bottom of the inner side of the main furnace body (1). A second pulley (8) is fixedly connected to the output shaft of the reduction motor (7). A transmission belt (9) is sleeved on the outer side of the second pulley (8) and the first pulley (502).

3. A vacuum furnace with a feeding mechanism according to claim 1, characterized in that: The second conveyor belt (506) is made of high-temperature resistant metal material. Several through holes (10) are opened on the surface of the second conveyor belt (506). Heating devices (11) are fixedly connected to the inner side of the main furnace body (1) and above and below the second conveyor belt (506).

4. A vacuum furnace with a feeding mechanism according to claim 1, characterized in that: An auxiliary block (12) is fixedly connected to the top of the partition plate (3), and arc-shaped grooves (13) are provided on both sides of the auxiliary block (12).

5. A vacuum furnace with a feeding mechanism according to claim 1, characterized in that: The top of the gate (6) is fixedly connected to a crossbeam (14), and both the front and rear ends of the crossbeam (14) are fixedly connected to hydraulic rods (15), and the bottom end of the hydraulic rods (15) is fixedly connected to the outer wall of the main furnace body (1).

6. A vacuum furnace with a feeding mechanism according to claim 1, characterized in that: An observation glass (16) is fixedly embedded on the front of the main furnace body (1) and above the second conveyor belt (506). Furnace doors (17) are rotatably connected to the front of the main furnace body (1) and on both the left and right sides of the observation glass (16). A sealing strip (18) is fixedly connected to the inner side of the furnace door (17).

7. A vacuum furnace with a feeding mechanism according to claim 1, characterized in that: Three sets of exhaust pipes (19) are fixedly connected to the back of the main furnace body (1), and a vacuum pump (20) is fixedly connected to the bottom of the inner side of the main furnace body (1). All three sets of exhaust pipes (19) are connected to the vacuum pump (20).