A powder coating rapid curing oven
Patent Information
- Application Number
- CN202522586420.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-05
AI Technical Summary
为提升多个工件都能得到烘干，现有粉末涂料快速固化烘箱普遍采用“驱动机构控制支架带动工件转动”的设计，通过工件全方位转动让各表面充分接触热源，确保受热均匀，但该驱动结构存在明显短板：烘箱内的高温会通过传动轴直接传导至相连的电机，设备经长久连续工作后，电机内部线圈的绝缘层会因持续高温加速老化、脆化，严重时还会出现破损短路问题，最终导致电机烧毁或故障停机，进而直接影响烘箱的运行稳定性，缩短设备整体使用寿命，因此，针对上述问题提出一种粉末涂料快速固化烘箱
本实用新型中，通过设置的支架旋转组件、驱动组件和传动组件，装置在对传动轴驱动时，传动机构与传动轴间接触和分离，不仅不影响对传动轴的驱动，同时可以起到暂时隔热再冷却的效果，有效避免烘箱内高温通过传动结构传导至电机，防止电机内部线圈绝缘层因持续高温加速老化、脆化、破损短路及电机烧毁、故障停机等问题，显著提升了烘箱的运行稳定性，延长了设备整体使用寿命。
Smart Images
Figure CN224894657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oven technology, specifically to a powder coating rapid curing oven. Background Technology
[0002] The powder coating rapid curing oven is the core equipment in the powder coating construction process. Through precise temperature control and efficient heat transfer, it provides a stable curing environment for the powder coating sprayed on the workpiece surface in a short time, which promotes the rapid cross-linking reaction of the powder coating to form a dense, uniform and strongly adhesive cured coating. Its core features are rapid heating, uniform temperature distribution and high curing efficiency, which can significantly shorten the coating curing cycle, adapt to the needs of mass production, and at the same time ensure that the key properties of the finished coating, such as hardness and corrosion resistance, meet the usage standards. To improve the drying efficiency of multiple workpieces, existing powder coating rapid curing ovens generally adopt a design where a drive mechanism controls the support to rotate the workpieces. This omnidirectional rotation of the workpieces ensures that all surfaces are in full contact with the heat source, guaranteeing uniform heating. However, this drive structure has significant drawbacks: the high temperature inside the oven is directly conducted to the connected motor through the drive shaft. After prolonged continuous operation, the insulation layer of the motor's internal coils will age and become brittle due to the sustained high temperature, potentially leading to damage and short circuits. This can ultimately cause the motor to burn out or malfunction and shut down, directly affecting the oven's operational stability and shortening the overall lifespan of the equipment. Therefore, a powder coating rapid curing oven is proposed to address these issues. Utility Model Content
[0003] The purpose of this invention is to provide a powder coating rapid curing oven to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A powder coating rapid curing oven includes a drying chamber assembly. A support rotating assembly is rotatably connected to the inner side of the drying chamber assembly. A drive assembly is fixedly connected to the top of the drying chamber assembly. A transmission assembly is installed inside the drive assembly. The drive assembly includes an arch frame. A drive motor is fixedly connected to the top of the arch frame. A second disc is fixedly connected to the end of the drive motor's main shaft. A sliding hole is formed on the inner side of the second disc. A ramp is fixedly connected to the inner side of the arch frame. An inner groove is formed on the inner side of the ramp. An upper slope surface is formed at the upper end of the ramp. The transmission assembly includes a fixed plate. A spring and a transmission rod are fixedly connected to the bottom end of the fixed plate. Multiple extrusion blocks are fixedly connected to the outer side of the transmission rod.
[0005] As a further optimization of this utility model, the drying box assembly includes a box shell, a heating wire fixedly connected to the inner side of the box shell, a sealing plate fixedly connected to the front end of the box shell, a cold air fan fixedly connected to the rear end of the box shell, and the top end of the box shell fixedly connected to the arch frame by bolts.
[0006] As a further optimization of this utility model, an extension tube is fixedly connected to the upper part of the housing, and a bearing and a graphite sealing ring are fixedly connected to the inner side of the extension tube, with the bearing located at the lower end of the graphite sealing ring.
[0007] As a further optimization of this utility model, the bracket rotation assembly includes a shaft column, a support frame is fixedly connected to the outer side of the shaft column, a hook is fixedly connected to the bottom end of the support frame, the outer side of the shaft column is rotatably connected to the housing via a bearing, and the outer side of the shaft column is in contact with the inner side of the graphite sealing ring.
[0008] As a further optimization of this utility model, the shaft extends from the upper end of the extension cylinder, and a gap is provided between the bottom end of the first disc and the extension cylinder.
[0009] As a further optimization of this utility model, the following features are provided: multiple extrusion blocks are disposed at the upper end of the slope block, the bottom ends of the multiple extrusion blocks are attached to the top of the upper slope surface, the height of the extrusion blocks is three centimeters, multiple transmission rods are disposed on the inner side of the inner cavity, and the center of the extrusion block is aligned vertically with the insertion hole.
[0010] As a further optimization of this utility model, a four-centimeter gap is provided between the bottom end of the second disc and the top end of the ramp, the top end of the second disc is fixedly connected to the bottom end of the spring, and the transmission rod slides inside the sliding hole.
[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the rotating bracket assembly, driving assembly, and transmission assembly allow the transmission mechanism to contact and separate from the transmission shaft during drive. This not only does not affect the drive of the transmission shaft but also provides temporary heat insulation and cooling. This effectively prevents the high temperature inside the oven from being conducted to the motor through the transmission structure, thus preventing the insulation layer of the motor coil from aging, becoming brittle, breaking, short-circuiting, burning out, or shutting down due to continuous high temperatures. This significantly improves the operational stability of the oven and extends the overall service life of the equipment. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an exploded structural diagram of the entire utility model; Figure 3This is one of the cross-sectional structural diagrams of the drying oven assembly of this utility model; Figure 4 This is the second cross-sectional structural diagram of the drying oven assembly of this utility model; Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A; Figure 6 This is a cross-sectional structural diagram of the drive component of this utility model; Figure 7 This is a schematic diagram of the transmission component structure of this utility model; Figure 8 This is a schematic diagram of the first disc structure of this utility model.
[0013] In the diagram: 1. Drying oven assembly; 11. Oven shell; 12. Heating wire; 13. Sealing plate; 14. Air cooler; 15. Extension tube; 16. Bearing; 17. Graphite sealing ring; 2. Support rotating assembly; 21. Shaft column; 22. Support frame; 23. Hook; 24. First disc; 25. Insertion hole; 3. Drive assembly; 31. Arch frame; 32. Drive motor; 33. Second disc; 34. Sliding hole; 35. Slope block; 36. Inner groove; 37. Upper slope surface; 4. Transmission assembly; 41. Fixing plate; 42. Spring; 43. Transmission rod; 44. Pressing block. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0016] Please see Figures 1-8 This utility model provides a technical solution: A powder coating rapid curing oven includes a drying oven assembly 1, a support rotating assembly 2 rotatably connected to the inside of the drying oven assembly 1, a drive assembly 3 fixedly connected to the top of the drying oven assembly 1, a transmission assembly 4 installed inside the drive assembly 3, the drive assembly 3 includes an arch frame 31, a drive motor 32 fixedly connected to the top of the arch frame 31, a second disc 33 fixedly connected to the end of the main shaft of the drive motor 32, a sliding hole 34 opened inside the second disc 33, a ramp 35 fixedly connected to the inside of the arch frame 31, an inner hollow groove 36 opened inside the ramp 35, an upper slope surface 37 opened at the upper end of the ramp 35, and a fixed plate 41 is fixedly connected to the bottom of the fixed plate 41. A spring 42 and a transmission rod 43 are fixedly connected to the outside of the transmission rod 43. Multiple extrusion blocks 44 are fixedly connected to the outside of the transmission rod 43.
[0017] As a further implementation of this solution, the drying oven assembly 1 includes a shell 11, a heating wire 12 fixedly connected to the inside of the shell 11, a sealing plate 13 fixedly connected to the front end of the shell 11, a cold air fan 14 fixedly connected to the rear end of the shell 11, and the top of the shell 11 fixedly connected to the arch frame 31 by bolts. With the above settings, the structure is firmly connected and can provide a reliable installation foundation for the core components such as baking and transmission inside the oven, ensuring the overall operational stability of the equipment and adapting to the continuous operation requirements in mass production. As a further implementation of this solution, an extension tube 15 is fixedly connected to the upper part of the housing 11. A bearing 16 and a graphite sealing ring 17 are fixedly connected to the inner side of the extension tube 15. The bearing 16 is located at the lower end of the graphite sealing ring 17. Through the above arrangement, the bearing 16 provides stable support for the rotation of the drive shaft, and the graphite sealing ring 17 prevents the hot air inside the oven from leaking out and contacting the motor, reducing the risk of heat conduction and helping to protect the drive motor 32. As a further implementation of this solution, the bracket rotation assembly 2 includes a shaft column 21, a support frame 22 fixedly connected to the outside of the shaft column 21, and a hook 23 fixedly connected to the bottom of the support frame 22. The outside of the shaft column 21 is rotatably connected to the housing 11 through a bearing 16. The outside of the shaft column 21 is in contact with the inside of the graphite sealing ring 17. With the above arrangement, the hook 23 can hang the workpiece, and the shaft column 21 moves the workpiece to rotate in all directions, ensuring that the surface of each workpiece is heated, ensuring the density and key performance of the coating. At the same time, the graphite sealing ring 17 is in contact with the shaft column 21 to strengthen the seal and further block heat leakage. As a further implementation of this solution, the shaft column 21 extends out of the upper end of the extension cylinder 15, and a gap is provided between the bottom end of the first disc 24 and the extension cylinder 15. Through the above setting, this gap design not only does not affect the normal rotation of the first disc 24, but also reduces the direct heat conduction between the first disc 24 and the extension cylinder 15, reduces the efficiency of heat diffusion to external transmission components and motor, and helps to improve the heat insulation effect. As a further implementation of this solution, multiple extrusion blocks 44 are set at the upper end of the slope block 35, with the bottom of the multiple extrusion blocks 44 fitting against the top of the upper slope surface 37. The height of the extrusion blocks 44 is three centimeters. Multiple transmission rods 43 are set inside the inner cavity 36. The center of the extrusion block 44 is aligned vertically with the insertion hole 25. Through the above settings, this layout and size design ensures that the transmission rods 43 can be accurately inserted into or disengaged from the insertion hole 25. While not affecting the drive of the transmission shaft, it realizes the distance contact and separation between the transmission mechanism and the transmission shaft, providing structural protection for temporary heat insulation and natural heat dissipation, and preventing the motor from being damaged due to high temperature. As a further implementation of this solution, a four-centimeter gap is provided between the bottom end of the second disc 33 and the top end of the ramp 35. The top end of the second disc 33 is fixedly connected to the bottom end of the spring 42. The transmission rod 43 slides inside the sliding hole 34. Through the above arrangement, the four-centimeter gap can reduce the heat transfer between the second disc 33 and the ramp 35. The sliding design of the transmission rod 43, together with the deformation and reset function of the spring 42, ensures the continuity of transmission, allowing the transmission rod 43, which is far from the transmission shaft, to fully contact the air for heat dissipation, stabilize the temperature within a safe range, and extend the service life of the equipment.
[0018] Workflow: During use, the workpiece coated with powder paint is hung on the hook 23. The sealing plate 13 is fixed to the housing 11 with bolts. At this time, the heating wire 12 is activated to bake the workpiece. The drive motor 32 is activated, which drives the second disc 33 to rotate. Since the second disc 33 is slidably connected to the transmission rod 43 through the sliding hole 34, the transmission rod 43 near the front end is inserted into the insertion hole 25. Through the push of the transmission rod 43, the first disc 24 rotates around the shaft 21. The shaft 21 is rotatably connected to the inside of the housing 11 through the bearing 16. The graphite sealing ring 17 seals the inside of the housing 11 to prevent hot air from flowing out through the gap between the shaft 21 and the extension tube 15 and contacting the drive motor 32. The shaft 21 rotates inside the housing 11, driving the support frame 22 and the hook 23 to rotate. The hook 23 drives the hooked workpiece to rotate, so that the workpiece can be baked. To prevent heat from being conducted through the shaft column 21 and the first disc 24 and affecting the service life of the drive motor 32, when multiple transmission components 4 rotate simultaneously, because the bottom end of the extrusion block 44 is in contact with the top end of the upper slope surface 37, and the upper slope surface 37 is an inclined structure, the extrusion block 44 will gradually move upward as it moves. The extrusion block 44 drives the transmission rod 43 and the fixing plate 41 to move upward. The fixing plate 41 pulls the spring 42 to deform. At this time, the extrusion block 44 moves to the position of the left and right ends of the center of the upper slope surface 37. At this time, the transmission rod 43 moves away from the insertion hole 25, and the transmission rod 43 located near the front end is controlled by the spring. 42. Pull the fixing plate 41 to re-insert the transmission rod 43 into the insertion hole 25 near the front end, keeping the first disc 24 and the shaft 21 rotating continuously. The transmission rod 43, which is away from the first disc 24, is prevented from transferring heat from the first disc 24 to the transmission rod 43. At the same time, the transmission rod 43 can dissipate heat naturally after contacting the outside air, keeping the transmission rod 43 between 60°C and 80°C. This prevents the insulation layer of the internal coil of the thermoelectric motor from aging and becoming brittle due to continuous high temperature, which could lead to damage and short circuit, ultimately causing the motor to burn out or malfunction and stop. This ensures the operational stability of the oven.
[0019] 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 powder coating rapid curing oven, comprising a drying oven assembly (1), characterized in that: The drying box assembly (1) is rotatably connected to the inner side of the bracket rotating assembly (2), and the top of the drying box assembly (1) is fixedly connected to the drive assembly (3). The drive assembly (3) is installed with a transmission assembly (4) inside the drive assembly (3). The drive assembly (3) includes an arch frame (31), a drive motor (32) is fixedly connected to the top of the arch frame (31), a second disc (33) is fixedly connected to the end of the main shaft of the drive motor (32), a sliding hole (34) is provided on the inner side of the second disc (33), a slope block (35) is fixedly connected to the inner side of the arch frame (31), an inner groove (36) is provided on the inner side of the slope block (35), and an upper slope surface (37) is provided at the upper end of the slope block (35). The transmission assembly (4) includes a fixed plate (41), with a spring (42) and a transmission rod (43) fixedly connected to the bottom end of the fixed plate (41), and multiple compression blocks (44) fixedly connected to the outside of the transmission rod (43).
2. The powder coating rapid curing oven according to claim 1, characterized in that: The drying box assembly (1) includes a box shell (11), a heating wire (12) is fixedly connected to the inside of the box shell (11), a sealing plate (13) is fixedly connected to the front end of the box shell (11), a cold air fan (14) is fixedly connected to the rear end of the box shell (11), and the top end of the box shell (11) is fixedly connected to the arch frame (31) by bolts.
3. The powder coating rapid curing oven according to claim 2, characterized in that: An extension tube (15) is fixedly connected to the upper part of the housing (11). A bearing (16) and a graphite sealing ring (17) are fixedly connected to the inner side of the extension tube (15). The bearing (16) is located at the lower end of the graphite sealing ring (17).
4. The powder coating rapid curing oven according to claim 1, characterized in that: The bracket rotation assembly (2) includes a shaft (21), a support frame (22) is fixedly connected to the outside of the shaft (21), a hook (23) is fixedly connected to the bottom of the support frame (22), the outside of the shaft (21) is rotatably connected to the housing (11) through a bearing (16), the outside of the shaft (21) is in contact with the inside of the graphite sealing ring (17), and a first disc (24) is fixedly connected to the top of the shaft (21), and an insertion hole (25) is opened on the inside of the first disc (24).
5. A powder coating rapid curing oven according to claim 4, characterized in that: The shaft (21) extends out of the upper end of the extension tube (15), and there is a gap between the bottom end of the first disk (24) and the extension tube (15).
6. The powder coating rapid curing oven according to claim 1, characterized in that: Multiple extrusion blocks (44) are disposed at the upper end of the slope block (35), the bottom end of the multiple extrusion blocks (44) is attached to the top of the upper slope surface (37), the height of the extrusion block (44) is three centimeters, multiple transmission rods (43) are disposed on the inner side of the inner cavity (36), and the center of the extrusion block (44) is aligned vertically with the insertion hole (25).
7. The powder coating rapid curing oven according to claim 1, characterized in that: A four-centimeter gap is provided between the bottom end of the second disc (33) and the top end of the ramp (35). The top end of the second disc (33) is fixedly connected to the bottom end of the spring (42). The transmission rod (43) slides on the inside of the sliding hole (34).