An online UV LED curing oven with reflow function
Patent Information
- Application Number
- CN202522482266.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-24
AI Technical Summary
[0004]在具体使用过程中部分在线UV LED固化炉中的工件偏移会导致其与 UV LED 光源的距离、角度改变，造成局部照射能量不足或过量，能量不足会使涂层未完全固化，出现附着力差、易刮花、耐摩擦性低等问题，能量过量则可能导致涂层发黄、脆化，甚至基材变形
本实用新型通过启动驱动电机带动驱动杆、转动板一转动，使随动板联动滑动板沿限位杆滑动，进而通过延伸支撑板带动防偏移挡板移动，让输送带上的工件居中，能有效防止工件脱落，保障输送稳定，电机驱动调节灵活，适配不同尺寸工件，提升输送带的输送安全性与适配性，减少工件损耗。
Smart Images
Figure CN224793904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of curing oven technology, and in particular to an online UV LED curing oven with recirculation. Background Technology
[0002] Online UV LED curing ovens are continuous equipment that uses UV LED lamps to emit ultraviolet light, which rapidly cures UV coatings and inks applied to the surface of workpieces. They feature high curing efficiency, low energy consumption, and precise temperature control, making them suitable for the continuous curing needs of workpieces in production lines. The inclusion of a reflow design represents a functional upgrade direction, as the reflow structure optimizes the curing environment and improves curing uniformity and effect.
[0003] In existing technologies, some online UV LED curing ovens with recirculation features start up. The workpiece to be cured is fed into the oven at a constant speed by a conveyor belt. It first passes through a preheating zone, where a hot air recirculation system blows out constant-temperature hot air to soften the coating and initially level it, reducing subsequent curing shrinkage. Then, the workpiece enters the UV LED curing zone, where multiple sets of UV LEDs emit ultraviolet light of specific wavelengths at a set power to quickly activate the photoinitiator in the coating, promoting cross-linking and curing of the coating. At the same time, the hot air recirculation system continues to work, carrying away the heat generated during curing and distributing the temperature evenly to avoid local overheating.
[0004] In practical use, the workpiece shifts in some online UV LED curing ovens, which can cause changes in the distance and angle between the workpiece and the UV LED light source. This can result in insufficient or excessive local irradiation energy. Insufficient energy can cause the coating to not be fully cured, resulting in problems such as poor adhesion, easy scratching, and low abrasion resistance. Excessive energy can cause the coating to yellow, become brittle, or even deform the substrate.
[0005] Therefore, it is necessary to provide a new type of online UV LED curing oven with reflow function to solve the above-mentioned technical problems. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides an online UV LED curing oven with reflow function.
[0007] This utility model provides an online UV LED curing oven with reflow function, including a worktable. Mounting plates are fixedly connected to the front and rear sides of the top of the worktable. A conveyor belt body is fixedly connected to the adjacent side of the two mounting plates. A reflow oven is fixedly connected to the top of the mounting plates. An anti-deviation mechanism is fixedly connected inside the worktable. Mounting frames are fixedly connected to the front and rear ends of the right side of the worktable. A buffer protection mechanism is fixedly connected to the right side of the mounting frames. The anti-deviation mechanism includes a support plate, which is fixedly connected to the outside of the worktable. A drive motor is fixedly connected to both the left and right sides of the support plate. A drive rod is fixedly connected to the drive end of the drive motor. A rotating plate is fixedly connected to the outside of the drive rod. Follower plates are rotatably connected to both the front and rear sides of the rotating plate. A sliding plate is rotatably connected to the outside of the follower plate. A limit assembly is fixedly connected to the outside of the worktable. A baffle assembly is fixedly connected to the top of the sliding plate.
[0008] Preferably, the limiting component includes a limiting rod, the limiting rod being externally fixedly connected to the left and right sides of the inside of the worktable, and the outside of the sliding plate being in contact with the inside of the worktable.
[0009] Preferably, the baffle assembly includes an extension support plate, the extension support plate being fixedly connected to the outside of the sliding plate, and an anti-deviation baffle being fixedly connected to the outside of the extension support plate, the anti-deviation baffle being slidably connected to the outside of the conveyor belt body.
[0010] Preferably, the buffer protection mechanism includes an extension mounting plate, which is externally fixedly connected to the outside of the mounting frame. A workpiece storage box is fixedly connected to the top of the extension mounting plate. Connecting frames are fixedly connected to the left and right sides of the inside of the workpiece storage box. Multiple rotating plates are rotatably connected inside the connecting frames. A connecting frame is rotatably connected to the other end of each rotating plate. A damping slider is fixedly connected to the outside of the connecting frame. A rubber placement plate is fixedly connected to the outside of the damping slider. Multiple reset components are provided at the bottom of the outside of the rubber placement plate.
[0011] Preferably, the reset assembly includes a slide groove, which is formed on the outer bottom end of the rubber placement plate. A fixing rod is fixedly connected to the outside of the slide groove, and a reset spring is sleeved on the outside of the fixing rod.
[0012] Preferably, the outer side of the rotating plate is rotatably connected to the inside of the worktable, and the outer side of the extension support plate is slidably connected to the inside of the worktable.
[0013] Preferably, the damping slider is internally slidably connected to the outside of the fixed rod, and the connecting frame is externally slidably connected to the bottom of the rubber placement plate.
[0014] Preferably, one end of the reset spring is fixedly connected to the outside of the damping slider, and the other end of the reset spring is fixedly connected to the bottom of the outside of the rubber placement plate.
[0015] Compared with related technologies, the online UV LED curing oven with reflow function provided by this utility model has the following beneficial effects: This invention uses a drive motor to rotate a drive rod and a rotating plate, causing a follower plate to slide along a limit rod. This, in turn, moves an anti-deviation baffle via an extended support plate, centering the workpiece on the conveyor belt. This effectively prevents workpieces from falling off, ensures stable conveying, and allows for flexible motor drive adjustment to accommodate workpieces of different sizes. This improves the safety and adaptability of the conveyor belt and reduces workpiece loss.
[0016] This invention utilizes the principle that when a workpiece falls into the storage box, gravity compresses the rubber placement plate, causing the damping slider to slide and compress the return spring. Combined with the rotation of the rotating plate for buffering, the dual action of damping and spring effectively absorbs the impact force of the falling workpiece. The rubber plate further protects the workpiece from damage due to collision. No additional power is required; the mechanical structure automatically buffers the impact, improving the safety of workpiece storage and reducing losses. Attached Figure Description
[0017] Figure 1 A schematic diagram of the structure of an online UV LED curing oven with reflow function provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the anti-deviation baffle. Figure 3 for Figure 1 The diagram shows the structure of the extended support plate. Figure 4 for Figure 1 The diagram shows the structure of the reflow oven. Figure 5 for Figure 4 Enlarged view of point A in the image.
[0018] The following are the labels in the diagram: 1. Workbench; 2. Mounting plate one; 3. Conveyor belt body; 4. Reflow oven; 5. Support plate one; 6. Drive motor; 7. Drive rod; 8. Rotating plate one; 9. Follower plate; 10. Sliding plate; 11. Extension support plate; 12. Anti-deviation baffle; 13. Limiting rod; 14. Mounting frame; 15. Extension mounting plate; 16. Workpiece storage box; 17. Connecting frame; 18. Rotating plate two; 19. Connecting frame; 20. Damping slider; 21. Rubber placement plate; 22. Slide groove; 23. Fixing rod; 24. Return spring. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.
[0020] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0021] Please see Figures 1 to 5 An online UV LED curing oven with reflow function includes a workbench 1. The core function of the workbench 1 is to provide a stable foundation support for the entire equipment, supporting components such as mounting plates 2, conveyor belt body 3, and reflow oven 4. Mounting plates 2 are fixedly connected to the front and rear sides of the top of the workbench 1. The main function of the mounting plates 2 is to support the conveyor belt body 3, fixing the conveyor belt in a preset position on the top of the workbench 1 to ensure that the conveyor belt does not shift forward or backward during operation. The conveyor belt body 3 is fixedly connected to the adjacent side of the two mounting plates 2. The core function of the conveyor belt body 3 is to realize the online continuous conveying of workpieces, transporting the workpieces to be processed from the equipment inlet to the reflow oven 4, the UV curing area, and then to the outlet. The fully automated conveyor reduces manual intervention and improves production efficiency. The top of the mounting plate 1 is fixedly connected to the reflow oven 4. The main function of the reflow oven 4 is to reflow solder the workpiece: when the workpiece enters the oven with the conveyor belt, it first passes through the preheating zone to remove the solvent in the solder paste, then enters the soldering zone to melt the solder paste and wet the solder joint, and finally passes through the cooling zone to solidify the solder paste, thus completing the soldering of electronic components and PCB boards. The insulation cotton design can reduce heat loss in the oven and reduce energy consumption. At the same time, precise temperature control ensures stable soldering quality. The inside of the workbench 1 is fixedly connected to the anti-deviation mechanism. The front and rear ends of the right side of the workbench 1 are fixedly connected to the mounting bracket 14. The right side of the mounting bracket 14 is fixedly connected to the buffer protection mechanism. The anti-deviation mechanism includes a support plate 5. The core function of the support plate 5 is to provide a mounting base for power components such as the drive motor 6 and drive rod 7. Its rigid structure can resist vibrations during motor operation, ensuring the stability of the power components and preventing transmission deviation. The support plate 5 is externally fixedly connected to the inside of the worktable 1. Drive motors 6 are fixedly connected to both the left and right sides of the support plate 5. The drive motors 6 serve as the power source for the anti-deviation mechanism, driving the drive rod 7 to rotate via forward and reverse rotation, thereby controlling the left and right movement of the sliding plate 10 and adjusting the position of the anti-deviation baffle 12. This adapts to the anti-deviation requirements of workpieces of different widths, and the automated adjustment improves the equipment's versatility. The drive end of the drive motor 6 is fixedly connected to the drive rod 7. The main function of the drive rod 7 is to transmit drive... The power of the motor 6 synchronously transmits the rotational motion of the motor to the rotating plate 8, causing the rotating plate 8 to rotate around the drive rod 7, providing power for the subsequent movement of the follower plate 9 and the sliding plate 10. The rotating plate 8 is fixedly connected to the outside of the drive rod 7. The core function of the rotating plate 8 is to convert the rotational motion of the drive rod 7 into the swinging motion of the follower plate 9. When the drive rod 7 drives the rotating plate 8 to rotate, the front and rear ends of the rotating plate 8 perform circular motion around the drive rod 7, thereby pulling the follower plate 9 to swing back and forth, providing power for the linear sliding of the sliding plate 10. The follower plates 9 are rotatably connected to the front and rear sides of the rotating plate 8. The main function of the follower plates 9 is to connect the rotating plate 8 and the sliding plate 10, converting the swinging motion of the rotating plate 8 into the sliding plate 10. The left and right linear motion is connected to a sliding plate 10 via the external rotation of the follower plate 9. The core function of the sliding plate 10 is to support the baffle assembly. By sliding left and right, it drives the anti-deviation baffle 12 to move synchronously, adjusting the distance between the baffle and the conveyor belt body 3 to adapt to workpieces of different widths. A limit assembly is fixedly connected to the outside of the worktable 1. The limit assembly includes a limit rod 13. The main function of the limit rod 13 is to provide precise guidance for the sliding plate 10, restricting the sliding plate 10 to move left and right only along the axis of the limit rod 13, preventing the sliding plate 10 from shifting forward or backward or tilting during movement, ensuring that the anti-deviation baffle 12 always remains parallel to the conveyor belt body 3, and improving the anti-deviation effect. The limit rod 13 is externally fixedly connected to the left and right sides inside the worktable 1. The exterior of the sliding plate 10 contacts the interior of the worktable 1. A baffle assembly is fixedly connected to the top of the sliding plate 10. The baffle assembly includes an extension support plate 11. The core function of the extension support plate 11 is to connect the sliding plate 10 and the anti-deviation baffle 12, transmitting the left and right movement of the sliding plate 10 to the anti-deviation baffle 12. At the same time, its "L"-shaped structure can raise the height of the anti-deviation baffle 12, ensuring that the baffle can fit against the side of the workpiece. The exterior of the extension support plate 11 is fixedly connected to the exterior of the sliding plate 10. The anti-deviation baffle 12 is fixedly connected to the exterior of the extension support plate 11. The main function of the anti-deviation baffle 12 is to prevent the workpiece from shifting left and right: when the workpiece is conveyed by the conveyor belt, if it tends to shift to one side, it will be blocked by the anti-deviation baffle 12 and reset to the center position of the conveyor belt.To ensure the workpiece is always conveyed along the preset path, the anti-deviation baffle 12 is externally slidably connected to the outside of the conveyor belt body 3.
[0022] The buffer protection mechanism includes an extension mounting plate 15, which provides a stable mounting support platform for the workpiece storage box 16. The extension mounting plate 15 is externally fixedly connected to the outside of the mounting frame 14, and the workpiece storage box 16 is fixedly connected to the top of the extension mounting plate 15. The workpiece storage box 16 provides a centralized storage space for workpieces, receiving processed workpieces transported from the conveyor belt and preventing them from falling directly to the ground and causing damage. Connecting frames 17 are fixedly connected to the left and right sides inside the workpiece storage box 16, and multiple rotating parts are rotatably connected inside the connecting frames 17. When the workpiece falls onto the rubber placement plate 21, the second rotating plate 18 is pressed downwards. This pressure causes the second rotating plate 18 to rotate around the connecting frame 17 via the connecting frame 19, converting the vertical displacement of the placement plate into the oscillation of the rotating plate. Simultaneously, the elastic properties of the spring steel initially buffer the impact force of the falling workpiece, preventing the impact force from being directly transmitted to the bottom of the storage box. The other end of the second rotating plate 18 is rotatably connected to the connecting frame 19, which connects the second rotating plate 18 to the damping slider 20, converting the oscillating motion of the second rotating plate 18 into the vertical sliding motion of the damping slider 20. The external fixed connection of the mounting bracket 19 is a damping slider 20. The damping slider 20 provides vertical sliding guidance for the rubber placement plate 21, restricting the placement plate to move only up and down along the slide rail, preventing the placement plate from tilting or shifting under pressure, and ensuring that the workpiece can be placed stably. The external fixed connection of the damping slider 20 is the rubber placement plate 21. The bottom of the rubber placement plate 21 is provided with multiple reset components. The reset components include a slide groove 22, which provides installation space for the fixed rod 23 and the reset spring 24, and at the same time restricts the extension and contraction direction of the spring to prevent the spring from twisting and deforming under force. To ensure that the elastic force can act stably on the placement plate, the slide groove 22 is opened on the outer bottom of the rubber placement plate 21. A fixing rod 23 is fixedly connected to the outside of the slide groove 22, and a return spring 24 is sleeved on the outside of the fixing rod 23. When the workpiece falls into the rubber placement plate 21, the placement plate is pressed downward and moves downward, compressing the return spring 24 to store elastic potential energy. When the workpiece is taken out from the placement plate, the spring releases the elastic potential energy and pushes the placement plate upward to return to the initial height. No manual adjustment is required, ensuring that the buffer mechanism can continuously and automatically receive workpieces and adapt to the continuous production needs of the equipment.
[0023] The rotating plate 8 is externally rotatably connected to the inside of the worktable 1, and the extended support plate 11 is externally slidably connected to the inside of the worktable 1. When the drive rod 7 drives the rotating plate 8 to rotate, the bracket and bearing can limit the radial displacement of the rotating plate 8, preventing it from shaking or tilting due to uneven force, ensuring that the rotating plate 8 can smoothly drive the follower plate 9 to swing, thereby ensuring the linear motion accuracy of the sliding plate 10. The damping slider 20 is internally slidably connected to the outside of the fixed rod 23. On the one hand, the fixed rod 23 can limit the circumferential rotation of the damping slider 20, ensuring the damping slider 20 can smoothly rotate. The nylon slider 20 can only slide up and down along the axial direction of the fixed rod 23. On the other hand, the nylon bushing can reduce the direct friction between the damping slider 20 and the fixed rod 23, and avoid wear due to long-term sliding. At the same time, the damping characteristics of the bushing further slow down the falling speed of the slider, enhance the buffering effect, and protect the workpiece from impact. The external sliding connection of the connecting frame 19 is connected to the external bottom end of the rubber placement plate 21. One end of the return spring 24 is fixedly connected to the outside of the damping slider 20, and the other end of the return spring 24 is fixedly connected to the external bottom end of the rubber placement plate 21.
[0024] The working principle of the online UV LED curing oven with reflow provided by this utility model is as follows: By starting the drive motor 6, the drive motor 6 drives the drive rod 7 to rotate, which in turn drives the rotating plate 8 to rotate. Under the action of the rotating plate 8, the rotating plate 8 drives the follower plates 9 on both sides to rotate, which in turn drives the sliding plate 10 to slide outside the limit rod 13. Then, the sliding plate 10 drives the anti-deviation baffle 12 to move outside the conveyor belt body 3 through the extension support plate 11. This allows the anti-deviation baffle 12 to slide outside the conveyor belt body 3, so that the workpiece conveyed outside the conveyor belt body 3 can be centered outside the conveyor belt body 3, thereby preventing the workpiece from falling off the outside of the conveyor belt body 3 and thus achieving anti-deviation of the workpiece. When the workpiece is transported to the outside of the workpiece storage box 16, the workpiece is pressed against the rubber placement plate 21 by gravity. This causes the damping slider 20 at the bottom of the rubber placement plate 21 to slide outside the slide groove 22 and outside the fixed rod 23. This causes the damping slider 20 to press against the return spring 24 outside the fixed rod 23. This causes the damping slider 20 to rotate outside the rotating plate 18 via the connecting frame 19. This allows the rotating plate 18 to rotate outside the workpiece storage box 16, thus providing buffer protection for the workpiece and preventing damage to it.
[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An online UV LED curing oven with reflow function, characterized in that, The workbench (1) is provided with mounting plates (2) fixedly connected to the front and rear sides of the top of the workbench (1), conveyor belt bodies (3) fixedly connected to the adjacent side of the two mounting plates (2), reflow oven (4) fixedly connected to the top of the mounting plates (2), anti-deviation mechanism fixedly connected inside the workbench (1), mounting brackets (14) fixedly connected to the front and rear ends of the right side of the workbench (1), and buffer protection mechanism fixedly connected to the right side of the mounting brackets (14). The anti-deviation mechanism includes a support plate (5), which is fixedly connected to the inside of the workbench (1). A drive motor (6) is fixedly connected to both the left and right sides of the support plate (5). A drive rod (7) is fixedly connected to the drive end of the drive motor (6). A rotating plate (8) is fixedly connected to the outside of the drive rod (7). A follower plate (9) is rotatably connected to both the front and rear sides of the rotating plate (8). A sliding plate (10) is rotatably connected to the outside of the follower plate (9). A limit assembly is fixedly connected to the outside of the workbench (1). A baffle assembly is fixedly connected to the top of the sliding plate (10).
2. The online UV LED curing oven with reflow function according to claim 1, characterized in that, The limiting component includes a limiting rod (13), which is fixedly connected to the left and right sides of the inside of the worktable (1), and the outside of the sliding plate (10) is in contact with the inside of the worktable (1).
3. The online UV LED curing oven with reflow function according to claim 2, characterized in that, The baffle assembly includes an extension support plate (11), which is fixedly connected to the outside of the sliding plate (10). An anti-deviation baffle (12) is fixedly connected to the outside of the extension support plate (11), and the anti-deviation baffle (12) is slidably connected to the outside of the conveyor belt body (3).
4. The online UV LED curing oven with reflow function according to claim 1, characterized in that, The buffer protection mechanism includes an extension mounting plate (15), which is fixedly connected to the outside of the mounting frame (14). A workpiece storage box (16) is fixedly connected to the top of the extension mounting plate (15). A connecting frame (17) is fixedly connected to both the left and right sides inside the workpiece storage box (16). Multiple rotating plates (18) are rotatably connected inside the connecting frame (17). A connecting frame (19) is rotatably connected to the other end of the rotating plates (18). A damping slider (20) is fixedly connected to the outside of the connecting frame (19). A rubber placement plate (21) is fixedly connected to the outside of the damping slider (20). Multiple reset components are provided at the bottom of the rubber placement plate (21).
5. An online UV LED curing oven with reflow function according to claim 4, characterized in that, The reset assembly includes a slide (22), which is opened at the bottom of the rubber placement plate (21). A fixing rod (23) is fixedly connected to the outside of the slide (22), and a reset spring (24) is sleeved on the outside of the fixing rod (23).
6. The online UV LED curing oven with reflow function according to claim 3, characterized in that, The external rotating plate (8) is rotatably connected to the inside of the worktable (1), and the external sliding support plate (11) is slidably connected to the inside of the worktable (1).
7. An online UV LED curing oven with reflow function according to claim 5, characterized in that, The damping slider (20) is internally slidably connected to the outside of the fixed rod (23), and the connecting frame (19) is externally slidably connected to the bottom of the rubber placement plate (21).
8. An online UV LED curing oven with reflow function according to claim 5, characterized in that, One end of the reset spring (24) is fixedly connected to the outside of the damping slider (20), and the other end of the reset spring (24) is fixedly connected to the bottom of the outside of the rubber placement plate (21).