Efficient vacuum annealing furnace

By using drive components, feed components and structures in the vacuum annealing furnace, combined with forward and reverse threads and rolling disc systems, the problem of uneven temperature distribution in the vacuum annealing furnace is solved, and the stability and uniformity of materials are achieved during the transmission and heating process, and the annealing effect and product quality are improved.

CN222975237UActive Publication Date: 2025-06-13AMORNANO MATERIALS & TECH BEIJING CO LTD
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Patent Information

Application Number
CN202422133456.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-06-13
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

Due to uneven temperature distribution during the heating process of existing vacuum annealing furnaces, local overheating or underheating of materials during the annealing process, affecting their performance and quality.

Method used

An efficient vacuum annealing furnace is designed, using drive components, feed components and structures. Through the cooperation of forward screw threads and reverse screw threads, combined with the stable rotation of the roller system, the stability and uniformity of the material during the transmission and heating process are ensured.

Benefits of technology

It effectively reduces the stress concentration phenomenon of the furnace body under a negative pressure environment, ensures the uniformity and reliability of the annealing process, reduces the problems of material retention and uneven heating, and improves the annealing effect of metal materials.

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Abstract

The utility model provides an efficient vacuum annealing furnace, which relates to the technical field of heating furnaces and comprises a support, the top end of the support is fixedly connected with a feeding component, the top end of the support is fixedly connected with a furnace body component, the outer side of the furnace body component is fixedly connected with a driving component, the furnace body component comprises a vacuum furnace body, and the outer side of the vacuum furnace body is fixedly connected onto the support. The driving assembly comprises a motor and a second in-furnace rolling disc, the driving end of the motor is fixedly connected with a rotating rod, and the outer side of the rotating rod is fixedly connected with a first in-furnace rolling disc, so that the stability and uniformity of materials in the conveying and heating process are ensured through matching of forward and reverse threads and stable rotation of the rolling disc system; therefore, the annealing effect of the metal material is improved, meanwhile, the continuous conveying and heating process of the material is optimized, and the problems of material retention and non-uniform heating are reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to an efficient vacuum annealing furnace. Background Art

[0002] An annealing furnace is a device used in the annealing process. Annealing is a metal heat treatment process aimed at improving the properties of metal materials, including their mechanical properties and corrosion resistance.

[0003] The existing patent CN221036820U discloses a heat pipe vacuum heating furnace, which includes a heating furnace body; a placement groove is opened on the outer side of the heating furnace body, an installation plate is arranged inside the placement groove, installation grooves are equidistantly opened on the outer side of the installation plate, fixing mechanisms are symmetrically arranged on both sides of the installation grooves on the surface of the installation plate, an air outlet pipe is arranged on the top of the heating furnace body, an installation seat is fixedly installed on the top of the air outlet pipe, and installation mechanisms are equidistantly arranged inside the installation seat. The fixing mechanism includes a placement cavity, a spring and a limiting block.

[0004] This patent solves the problem that personnel cannot quickly replace the damaged heating wire. By symmetrically arranging fixing mechanisms on both sides of the installation grooves on the surface of the installation plate, pulling the limiting block outwards, squeezing the limiting block into the interior of the placement cavity, and then taking out the heating rod from the interior of the installation groove to replace the damaged heating rod.

[0005] However, in actual use, there are still the following deficiencies. For example, during the heating process of a vacuum annealing furnace, due to the uneven temperature distribution inside the furnace, local overheating or underheating of the material often occurs during the annealing process, which has an adverse effect on its final performance and quality. This uneven temperature distribution not only reduces the annealing effect of the material but also may cause inconsistencies in the internal structure of the material, further affecting the quality of metal parts, and thus reducing the processing efficiency of the annealing furnace.

[0006] Therefore, the utility model provides an efficient vacuum annealing furnace. Summary of the Utility Model

[0007] The purpose of the utility model is to solve the deficiencies existing in the prior art and provide an efficient vacuum annealing furnace.

[0008] To achieve the above purpose, the utility model adopts the following technical scheme: An efficient vacuum annealing furnace includes a bracket, the top of the bracket is fixedly connected with a feeding component, the top of the bracket is fixedly connected with a furnace body component, and a driving component is fixedly connected to the outside of the furnace body component;

[0009] The furnace body component includes a vacuum furnace body, and the outside of the vacuum furnace body is fixedly connected to the bracket;

[0010] The driving assembly includes a motor and an inner furnace roller disk II. The driving end of the motor is fixedly connected to a rotating rod. An inner furnace roller disk I is fixedly connected to the outer side of the rotating rod. Inner teeth are fixedly connected to the outer side of the inner furnace roller disk I. A tooth shaft is rotatably connected to the inside of the vacuum furnace body. Outer teeth are fixedly connected to the inner wall of the inner furnace roller disk II.

[0011] As a preferred embodiment, the feeding assembly includes a forward lead screw thread, which is fixedly connected to the inner furnace roller disk II on the outer side. A reverse lead screw thread is fixedly connected to the inside of the inner furnace roller disk I. A collection box is fixedly connected to the bottom end of the vacuum furnace body. Flow holes are formed in the inside of the inner furnace roller disk I.

[0012] The technical effects of adopting the above technical solution are as follows: It can effectively reduce the stress concentration phenomenon of the furnace body in a negative pressure environment, and at the same time ensure the uniform distribution and smooth movement of the workpieces in the furnace, thereby improving the uniformity and reliability of the annealing process. Finally, the annealed workpieces can be collected and discharged orderly.

[0013] As a preferred embodiment, a heater is fixedly connected to the inner wall of the vacuum furnace body, and a positioning wheel is fixedly connected to the inner wall of the vacuum furnace body.

[0014] The technical effects of adopting the above technical solution are as follows: It helps to evenly distribute the temperature and air flow in the furnace, enabling the materials to obtain a more uniform heat treatment effect.

[0015] As a preferred embodiment, the outer side of the tooth shaft is meshed with the inner teeth and the outer teeth respectively.

[0016] The technical effects of adopting the above technical solution are as follows: Ensure that the driving force of the motor can be stably transmitted.

[0017] As a preferred embodiment, the outer side of the collection box is fixedly connected to a bracket.

[0018] The technical effects of adopting the above technical solution are as follows: Provide a stable support point for the box.

[0019] As a preferred embodiment, the inner wall of the positioning wheel is rotatably connected to the inner furnace roller disk II.

[0020] The technical effects of adopting the above technical solution are as follows: Enable the inner furnace roller disk II to rotate stably in the vacuum furnace body.

[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0022] The utility model is provided with a driving component, a feeding component and a structure. In the feeding component, the forward lead screw rotates threadedly to push materials to the second inner furnace tray. The motor drives the second inner furnace tray and works in coordination with the first inner furnace tray. Through meshing, the rotation is maintained, driving the materials to rotate and heat in the vacuum furnace body. The heaters are evenly distributed in the furnace body to ensure uniform temperature. The reverse lead screw thread of the first inner furnace tray cooperates with the forward lead screw thread to form a reverse mechanism, enabling the materials to flow through the holes to the second inner furnace tray and finally flow to the collection box. Such a design ensures the stability and uniformity of the materials during transmission and heating through the cooperation of the forward and reverse threads and the stable rotation of the tray system, thereby improving the annealing effect of metal materials. At the same time, the continuous transmission and heating process of the materials are optimized, reducing the problems of material retention and uneven heating, and further avoiding the problem of low work efficiency caused by the need for secondary rework due to defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Fig. 6 is a perspective view of an efficient vacuum annealing furnace provided by the utility model;

[0024] Figure 2 Fig. 10 is a sectional view of the vacuum furnace body structure of an efficient vacuum annealing furnace provided by the utility model;

[0025] Figure 3 Fig. 14 is a schematic structural view of the driving component of an efficient vacuum annealing furnace provided by the utility model;

[0026] Figure 4 Fig. 18 is a schematic structural view of the feeding component of an efficient vacuum annealing furnace provided by the utility model.

[0027] LEGEND DESCRIPTION:

[0028] 1. Support;

[0029] 2. Driving component; 21. Motor; 22. Rotating rod; 23. First inner furnace tray; 24. Inner teeth; 25. Tooth shaft; 26. Outer teeth; 27. Second inner furnace tray;

[0030] 3. Feeding component; 31. Forward lead screw thread; 32. Reverse lead screw thread; 33. Collection box; 34. Flow hole;

[0031] 4. Furnace body component; 41. Vacuum furnace body; 42. Heater; 43. Positioning wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] As Figure 1 - Figure 4 shown, this embodiment provides a technical solution: an efficient vacuum annealing furnace, including a bracket 1, a feeding component 3 is fixedly connected to the top of the bracket 1, a furnace body component 4 is fixedly connected to the top of the bracket 1, and a driving component 2 is fixedly connected to the outside of the furnace body component 4;

[0034] The furnace body component 4 includes a vacuum furnace body 41, the outside of the vacuum furnace body 41 is fixedly connected to the bracket 1, a heater 42 is fixedly connected to the inner wall of the vacuum furnace body 41, a positioning wheel 43 is fixedly connected to the inner wall of the vacuum furnace body 41, and the inner wall of the positioning wheel 43 is rotatably connected to the inner furnace roller 27. First, the bracket 1 serves as the basic structure of the entire device, firmly supporting all components of the device. The furnace body component 4 is firmly connected to the bracket 1 through its outer fixed connection, ensuring that the vacuum furnace body 41 will not displace during operation, ensuring the safety and stability of the device. The heaters 42 on the inner wall of the vacuum furnace body 41 are evenly distributed, capable of quickly and evenly heating the internal materials, making the annealing process more uniform, thereby improving the quality of the finished product. The design of the positioning wheel 43 is to ensure the stable operation of the inner furnace roller 27. The inner wall of the positioning wheel 43 is rotatably connected to the inner furnace roller 27, which can make the inner furnace roller 27 rotate while ensuring the stability of the roller, enabling the materials to be evenly heated and processed in the furnace;

[0035] The driving component 2 includes a motor 21 and an inner furnace roller 27. The driving end of the motor 21 is fixedly connected to a rotating rod 22. The outer side of the rotating rod 22 is fixedly connected to an inner furnace roller 23. The outer side of the inner furnace roller 23 is fixedly connected to internal teeth 24. A tooth shaft 25 is rotatably connected inside the vacuum furnace body 41. The inner wall of the inner furnace roller 27 is fixedly connected to external teeth 26. The outer side of the tooth shaft 25 meshes with the internal teeth 24 and the external teeth 26 respectively. In the design of the driving component 2, the motor 21 is connected to the rotating rod 22 through its driving end, providing stable and strong power output. The rotating rod 22 is further connected to the inner furnace roller 23, enabling the entire driving system to effectively drive the internal rotating components. The outer side of the inner furnace roller 23 is provided with internal teeth 24, and these internal teeth 24 mesh with the external teeth 26 of the tooth shaft 25, thereby realizing power transmission and enabling the inner furnace roller 27 to rotate smoothly. Finally, the inner wall of the inner furnace roller 27 is fixedly connected to external teeth 26, and these external teeth 26 mesh with the internal teeth 24 of the tooth shaft 25, forming a complete power transmission system. This design enables the materials to be evenly and continuously rotated and heated inside the vacuum furnace body 41, thereby improving the annealing effect and significantly enhancing the product quality.

[0036] To realize the transfer of materials between the inner furnace roller 23 and the inner furnace roller 27, as Figure 4 shown: In this solution, the feeding component 3 includes a forward lead screw thread 31. The outer side of the forward lead screw thread 31 is fixedly connected to the inner furnace roller 27. A reverse lead screw thread 32 is fixedly connected inside the inner furnace roller 23. The bottom end of the vacuum furnace body 41 is fixedly connected to a collection box 33. The outer side of the collection box 33 is fixedly connected to the bracket 1. A flow hole 34 is opened inside the inner furnace roller 23. First, the feeding component 3 includes the forward lead screw thread 31, which is fixedly connected to the outer side of the inner furnace roller 27, and realizes the stable conveying of materials through precise screw transmission. The forward lead screw thread 31 pushes the materials into the roller system through rotational movement, ensuring that the materials can smoothly enter the next processing link. The design of the reverse lead screw thread 32 cooperates with the forward lead screw thread 31 to form a synchronous reverse movement mechanism, enabling the precise control of the transfer of materials between different rollers. The design of this reverse thread ensures that there will be no jamming or unevenness during the transfer of materials, improving the smoothness of the transfer of materials between the rollers. And the design of the flow hole 34 is combined to enable the materials to maintain good fluidity inside the roller, avoiding material accumulation or blockage. The function of the collection box 33 is to effectively collect the materials after the materials pass through the roller transmission and complete the processing, and at the same time facilitate subsequent processing or reuse.

[0037] Working principle:

[0038] As Figure 1 - Figure 4 shown:

[0039] In use: First, the forward lead screw thread 31 in the feeding component 3, through its rotational movement, stably pushes the material from the outside into the second inner furnace roller 27. Subsequently, the second inner furnace roller 27, driven by the motor 21 of the driving component 2, through the coordinated work of the rotating rod 22 and the first inner furnace roller 23, and through the engagement of the external teeth 26 and the tooth shaft 25, the stable rotation of the second inner furnace roller 27 is maintained, thereby driving the material to perform continuous rotation and heating treatment inside the vacuum furnace body 41. The heaters 42 are evenly distributed on the inner wall of the vacuum furnace body 41, ensuring the temperature uniformity of the material during the heating process, thereby improving the annealing effect. Then, the reverse lead screw thread 32 of the first inner furnace roller 23 cooperates with the forward lead screw thread 31 to form a reverse movement mechanism, enabling the material to flow through the flow hole 34 to the second inner furnace roller 27 and then from the second inner furnace roller 27 to the collection box 33, so as to centrally collect the processed metal.

[0040] The above is only the preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. An efficient vacuum annealing furnace, comprising a support (1), characterized in that: The top end of the support (1) is fixedly connected to a feeding assembly (3), the top end of the support (1) is fixedly connected to a furnace body assembly (4), and the outer side of the furnace body assembly (4) is fixedly connected to a driving assembly (2); The furnace body assembly (4) comprises a vacuum furnace body (41), the outer side of the vacuum furnace body (41) being fixedly connected to the bracket (1); The driving assembly (2) comprises a motor (21) and a second furnace roller (27); the driving end of the motor (21) is fixedly connected to a rotating rod (22); the outer side of the rotating rod (22) is fixedly connected to a first furnace roller (23); the outer side of the first furnace roller (23) is fixedly connected to an inner tooth (24); the interior of the vacuum furnace body (41) is rotatably connected to a gear shaft (25); and the inner wall of the second furnace roller (27) is fixedly connected to an outer tooth (26).

2. An efficient vacuum annealing furnace according to claim 1, characterized in that: The feeding assembly (3) comprises a forward screw thread (31), the outer side of the forward screw thread (31) is fixedly connected to the second roller (27) in the furnace, the interior of the first roller (23) in the furnace is fixedly connected with a reverse screw thread (32), the bottom end of the vacuum furnace body (41) is fixedly connected with a collecting box (33), and the interior of the first roller (23) in the furnace is provided with a flow hole (34).

3. The efficient vacuum annealing furnace according to claim 1, characterized in that: A heater (42) is fixedly connected to the inner wall of the vacuum furnace body (41), and a positioning wheel (43) is fixedly connected to the inner wall of the vacuum furnace body (41).

4. The efficient vacuum annealing furnace according to claim 1, characterized in that: The outer side of the gear shaft (25) is meshed with the inner teeth (24) and the outer teeth (26) respectively.

5. The efficient vacuum annealing furnace according to claim 2, characterized in that: The outer side of the collecting box (33) is fixedly connected to the bracket (1).

6. The efficient vacuum annealing furnace according to claim 3, characterized in that: The inner wall of the positioning wheel (43) is rotatably connected to the second roller (27) in the furnace.