Vacuum drying oven
By introducing a uniform heating structure into the vacuum drying box, the planetary gear system driven by A heating wire and B heating wire combined with a servo motor is solved, the problem of uneven heating of materials is achieved, and uniform heating is achieved, which improves drying quality and efficiency.
Patent Information
- Application Number
- CN202422039599.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The materials in the existing vacuum drying box are unevenly heated, resulting in some materials being overheated, deteriorated or incompletely drying, affecting the drying efficiency and quality.
A uniform heating structure is adopted, including A heating wire, B heating wire and a planetary gear system driven by servo motors, so that the material rotates under a vacuum environment and is uniformly heated by heat radiation.
The uniform heating of each part of the material is achieved, the drying quality and efficiency are improved, and the problems of overheating or incomplete drying are avoided.
Smart Images
Figure CN223165829U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drying ovens, and specifically relates to a vacuum drying oven. Background Art
[0002] The vacuum drying oven is a professional device specially designed for drying heat-sensitive, easily decomposed, and easily oxidized substances. During the working process, the device can maintain a specific vacuum degree in the working chamber and also has the function of filling inert gas into it. This design is extremely beneficial for drying items with relatively complex components, enabling them to achieve rapid drying in a stable and suitable environment, and retaining their original characteristics and components to the greatest extent. In addition, the vacuum drying oven adopts an advanced intelligent digital temperature regulator for precise setting, clear display, and accurate control of temperature. Through this intelligent temperature regulation system, operators can easily set the ideal drying temperature according to the drying requirements of different materials, and monitor the temperature changes during the drying process in real time and intuitively, ensuring that the entire drying process is carried out under precise temperature control, so that the materials can reach the expected effect and quality;
[0003] The deficiencies of the existing vacuum drying ovens are as follows: the position of the placement plate is fixed. Due to this fixed structural design, during the drying operation, it can only rely on the heat generated by the heating wire to be conducted through the air to heat the materials. However, this single heat conduction method has great limitations, resulting in uneven distribution of heat during the heat transfer process. During the drying process, the material part close to the heating wire will receive more heat first, so the temperature will rise rapidly; while the material part far from the heating wire receives relatively less heat, and the temperature rises relatively slowly. This uneven heat distribution phenomenon causes a large difference in the drying degree of each part of the material. Some materials may be damaged in quality, deteriorated, or even burned due to excessive heating; while another part of the materials may not be thoroughly dried due to insufficient heating, unable to meet the expected drying effect and quality requirements, greatly affecting the overall efficiency of the drying operation and the quality of the final product. Content of the Utility Model
[0004] To solve the problems raised in the above background art, the utility model provides a vacuum drying oven, which includes a drying oven, a uniform heating structure located inside the drying oven, and a vacuum structure located on the left side of the uniform heating structure;
[0005] The uniform heating structure includes A heating wires assembled on both sides of the inner wall of the drying oven, B heating wires assembled on the inner bottom wall of the drying oven, and a servo motor assembled on the inner top wall of the drying oven. The output end of the servo motor is fixedly connected with a sun gear, the outer wall of the sun gear is meshed with a planetary gear, and the outer wall of the planetary gear is meshed with a limiting ring.
[0006] Preferably, racks which are equally spaced and adapted to the planetary gears are provided on the inner wall of the limiting ring.
[0007] Preferably, a flow-through groove is provided above the B heating wire, and the flow-through grooves are arranged in a linear array.
[0008] Preferably, the vacuum structure includes a vacuum machine, an air outlet pipe is connected to the output end of the vacuum machine in a penetrating manner, and an air extraction pipe is connected to the input end of the vacuum machine in a penetrating manner.
[0009] Preferably, the internal space of the drying oven can be divided into a drying space and an installation space, the vacuum machine is fixedly installed in the installation space, and the air extraction pipe extends into the drying space.
[0010] Preferably, a transparent observation window is provided on the front of the drying oven, a sealing door is provided on the right side of the transparent observation window, and the sealing door is rotatably connected to the drying oven through a hinge.
[0011] Preferably, a heat dissipation groove is provided at the top of the drying oven.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] By providing a uniform heating structure, when drying the material, the A heating wire and the B heating wire start to function. In a vacuum environment, they transfer heat to the surroundings in a unique way of thermal radiation. At the same time, in order to further achieve uniform heating, four servo motors are started to rotate. As the servo motors operate, the sun gear starts to rotate. Once the sun gear starts to rotate, it can drive the planetary gears meshing with it to start rotating. At this time, due to the constraint of the limiting ring on the planetary gears, while revolving around the sun gear, the planetary gears themselves also perform self-rotation movements. This movement mode causes the support rods connected to the planetary gears and the placement boxes installed on the support rods to start rotating. As the placement boxes rotate, the materials in the placement boxes also rotate. During the continuous rotation of the materials, the problem of uneven heating caused by the fact that heat can only be linearly transferred by thermal radiation is effectively solved, and all parts of the materials can evenly receive the heat from the A heating wire and the B heating wire, thus perfectly achieving the effect of uniform heating and greatly improving the quality and efficiency of material drying. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0015] Figure 2 is a schematic diagram of the overall structure of the present utility model except the sealing door;
[0016] Figure 3 This is a schematic cross-sectional view of the bottom of the drying oven of the present utility model;
[0017] Figure 4 This is a front view structural schematic diagram of the present utility model except for the sealing door;
[0018] Figure 5 This is a schematic cross-sectional view of the uniform heating structure of the present utility model.
[0019] In the figure: 1, drying oven; 11, transparent observation window; 12, sealing door; 13, heat dissipation slot; 2, uniform heating structure; 21, A heating wire; 22, B heating wire; 23, servo motor; 24, sun gear; 25, planetary gear; 26, limiting ring; 261, rack; 27, support rod; 28, placement box; 3, vacuum structure; 31, vacuum machine; 32, air outlet pipe; 33, air extraction pipe. Specific embodiments
[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0021] As Figures 1 to 5 shown, the present utility model provides a vacuum drying oven, including a drying oven 1 and a uniform heating structure 2 located inside the drying oven 1, and a vacuum structure 3 located on the left side of the uniform heating structure 2;
[0022] The uniform heating structure 2 includes an A heating wire 21 assembled on both sides of the inner wall of the drying oven 1 and a B heating wire 22 assembled on the inner bottom wall of the drying oven 1, and a servo motor 23 assembled on the inner top wall of the drying oven 1. The output end of the servo motor 23 is fixedly connected to a sun gear 24. The outer wall of the sun gear 24 is meshed with a planetary gear 25. The outer wall of the planetary gear 25 is meshed with a limiting ring 26. The bottoms of the planetary gears 25 are all fixedly installed with support rods 27, and the outer walls of the support rods 27 are all fixedly installed with placement boxes 28.
[0023] Adopting the above solution: By setting up the uniform heating structure 2, when drying the material, the A heating wire 21 and the B heating wire 22 start to function. In a vacuum environment, they transfer heat to the surroundings in a unique way of thermal radiation. At the same time, in order to further achieve uniform heating, four servo motors 23 are started to rotate. As the servo motors 23 operate, the sun gear 24 is driven to rotate. Once the sun gear 24 starts to rotate, it can drive the planetary gear 25 meshed with it to start rotating. At this time, due to the restraint of the planetary gear 25 by the limit ring 26, while revolving around the sun gear 24, the planetary gear 25 itself is also rotating. This movement mode causes the support rod 27 connected to the planetary gear 25 and the placement box 28 installed on the support rod 27 to start rotating. As the placement box 28 rotates, the material in the placement box 28 also rotates. During the continuous rotation of the material, the problem of uneven heating caused by the heat being transmitted only linearly through thermal radiation is effectively solved. Each part of the material can evenly receive the heat from the A heating wire 21 and the B heating wire 22, thus perfectly achieving the effect of uniform heating and greatly improving the quality and efficiency of material drying.
[0024] As Figures 1 to 5 shown, the inner wall of the limit ring 26 is provided with racks 261 that are equally distributed and adapted to the planetary gear 25. A flow channel is opened above the B heating wire 22, and the flow channels are arranged in a linear array.
[0025] Adopting the above solution: The planetary gear 25 meshes with the rack 261 and the sun gear 24 respectively. Such a design enables the sun gear 24 to drive the planetary gear 25 to revolve around the sun gear 24 while also rotating itself when the sun gear 24 rotates.
[0026] As Figures 1 to 5 shown, the vacuum structure 3 includes a vacuum machine 31. The output end of the vacuum machine 31 is connected through a pipe to an air outlet pipe 32, and the input end of the vacuum machine 31 is connected through a pipe to an air extraction pipe 33. The internal space of the drying box 1 can be divided into a drying space and an installation space. The vacuum machine 31 is fixedly installed in the installation space and the air extraction pipe 33 extends into the drying space.
[0027] Adopting the above solution: The function of the vacuum structure 3 is to extract the air inside the drying box 1, making its internal space in a vacuum state. The space behind the transparent observation window 11 is the installation space, and the space behind the sealing door 12 is the drying space.
[0028] As Figures 1 to 5 shown, the front of the drying box 1 is provided with a transparent observation window 11. The right side of the transparent observation window 11 is provided with a sealing door 12. The sealing door 12 is rotatably connected to the drying box 1 through a hinge. A heat dissipation slot 13 is opened at the top of the drying box 1.
[0029] Adopting the above solution: When the sealing door 12 is closed, the airtightness of the drying oven 1 can be increased, enabling the vacuum machine 31 to quickly evacuate the drying oven 1 to a vacuum state. At this time, the materials in the placement box 28 may be in a floating state. Therefore, a material blocking plate needs to be clamped on the top surface of the placement box 28 to keep the materials inside the placement box 28 all the time.
[0030] The working principle and usage process of the present utility model:
[0031] First, open the sealing door 12 and place the materials to be dried in the placement box 28. Then close the sealing door 12 and start the vacuum machine 31. At this time, the vacuum machine 31 extracts the air in the drying oven 1 through the suction pipe 33 and discharges it through the air outlet pipe 32. Then start the servo motor 23. As the servo motor 23 operates, the sun gear 24 starts to rotate. Once the sun gear 24 starts to rotate, it can drive the planet gear 25 meshing with it to start rotating. At this time, due to the restraining effect of the limiting ring 26 on the planet gear 25, while revolving around the sun gear 24, the planet gear 25 itself is also rotating. This movement mode causes the support rod 27 connected to the planet gear 25 and the placement box 28 installed on the support rod 27 to start rotating. As the placement box 28 rotates, the materials in the placement box 28 also rotate accordingly. Finally, start the A heating wire 21 and the B heating wire 22 so that they transfer heat to the surroundings in a unique way of thermal radiation, and all parts of the materials can evenly receive the heat from the A heating wire 21 and the B heating wire 22, thus perfectly achieving the effect of uniform heating.
[0032] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A vacuum drying oven, characterized in that: It comprises a drying box (1), a uniform heating structure (2) located inside the drying box (1), and a vacuum structure (3) located on the left side of the uniform heating structure (2); The uniform heating structure (2) comprises heating wires A (21) mounted on both sides of the inner wall of the drying box (1), heating wires B (22) mounted on the inner bottom wall of the drying box (1), and a servo motor (23) mounted on the inner top wall of the drying box (1). The output end of the servo motor (23) is fixedly connected to a sun gear (24), the outer wall of the sun gear (24) is meshedly connected to a planetary gear (25), the outer wall of the planetary gear (25) is meshedly connected to a limiting ring (26), the bottom of each planetary gear (25) is fixedly mounted with a support rod (27), and the outer wall of each support rod (27) is fixedly mounted with a placement box (28).
2. The vacuum drying oven according to claim 1, wherein: The inner wall of the limiting ring (26) is provided with racks (261) that are distributed at equal intervals and matched with the planetary gears (25).
3. A vacuum drying oven according to claim 1, characterized in that: A flow slot is provided above the B heating wire (22), and the flow slots are distributed in a linear array.
4. A vacuum drying oven according to claim 1, characterized in that: The vacuum structure (3) comprises a vacuum machine (31), the output end of the vacuum machine (31) is connected to an air outlet pipe (32), and the input end of the vacuum machine (31) is connected to an air extraction pipe (33).
5. A vacuum drying oven according to claim 4, characterized in that: The internal space of the drying box (1) can be divided into a drying space and an installation space. The vacuum machine (31) is fixedly installed in the installation space, and the exhaust pipe (33) extends into the drying space.
6. A vacuum drying oven according to claim 1, characterized in that: A transparent observation window (11) is provided on the front of the drying box (1), and a sealing door (12) is provided on the right side of the transparent observation window (11). The sealing door (12) is rotatably connected to the drying box (1) via a hinge.
7. A vacuum drying oven according to claim 1, characterized in that: A heat dissipation slot (13) is provided on the top of the drying box (1).