A UV energy detection mechanism and UV curing device

Abstract

The application discloses a UV energy detection mechanism and a UV curing device, and belongs to the technical field of spraying and curing equipment. The UV energy detection mechanism comprises a supporting structure, a conveying structure, a driving structure and a detection structure. The conveying structure is installed on the supporting structure, and the conveying structure has a moving part capable of moving in a first direction. The driving structure is in transmission connection with the moving part to drive the moving part to move in the first direction. The detection structure is arranged on the moving part and can move under the driving of the moving part. The detection structure is used for detecting UV energy at different positions. The detection structure, the conveying structure and the supporting structure are arranged in sequence in a second direction. The application alleviates the linear irradiation problem of the UV lamp tube through reasonable structure arrangement, and prolongs the service life of the UV energy detection mechanism.

Description

Technical Field

[0001] This application relates to the field of spray curing equipment technology, and in particular to a UV energy detection mechanism and a UV curing device. Background Technology

[0002] In the conformal coating process of the electronics manufacturing industry, the energy stability of the UV curing oven directly determines the degree of coating polymerization and product reliability. Traditionally, this is measured using an energy meter. Specifically, the energy meter is placed on a jig during normal production to simulate the actual board loading scenario of a PCBA, thereby measuring the UV energy of the UV lamps. However, this method has several drawbacks: firstly, it involves high labor costs and operational complexity; secondly, it requires stopping the production line for testing, resulting in low measurement efficiency; and thirdly, it cannot record UV energy data in real time, leading to delays in production quality control. Utility Model Content

[0003] This application provides a UV energy detection mechanism and a UV curing device to automate the UV energy detection process, thereby at least partially solving the aforementioned technical problems.

[0004] To achieve the above objectives, in a first aspect, this application provides a UV energy detection mechanism having intersecting first direction X and second direction Y, the UV energy detection mechanism comprising:

[0005] Support structure;

[0006] A conveying structure is mounted on a supporting structure and has a moving part capable of moving along a first direction X.

[0007] A drive structure is connected to the motion part in a transmission manner to drive the motion part to move along the first direction X;

[0008] The detection structure is located in the moving part and can move under the drive of the moving part. The detection structure is used to detect the UV energy of the UV lamp tube.

[0009] The detection structure, conveying structure, and support structure are arranged sequentially along the second direction Y.

[0010] In some embodiments, the UV energy detection mechanism further includes a processor and a display panel;

[0011] The detection structure is connected to the processor via a data cable. A tank chain is fitted onto the data cable, and the two ends of the tank chain are fixedly connected to the detection structure and the processor, respectively.

[0012] The processor is electrically connected to the display panel;

[0013] The detection structure transmits the collected UV energy data to the processor, which is configured to perform signal analysis and numerical conversion on the received UV energy data; the display panel is used to display the UV energy data processed by the processor.

[0014] In some embodiments, the UV energy detection mechanism also has a third direction Z perpendicular to the first direction X and the second direction Y. The support structure is provided with a protective part, which is connected to the support structure at both ends along the first direction X. The tank chain and the conveying structure are located on the same side of the protective part in the third direction Z.

[0015] In some embodiments, the UV energy detection mechanism further includes a controller electrically connected to the drive structure and configured to adjust the speed and direction of the moving part by controlling the start / stop and output parameters of the drive structure.

[0016] In some embodiments, the conveying structure further includes a sensing plate and a distance sensor;

[0017] The sensor plates are respectively set at both ends of the motion trajectory of the moving part;

[0018] The distance sensor is connected to the moving part and electrically connected to the controller; the distance sensor is configured to detect the distance from the moving part to the sensing plate and feed it back to the controller.

[0019] The controller has a preset distance threshold. When the distance between the detected moving part and the sensing plate is equal to the distance threshold, it outputs a reverse control signal to the drive structure to switch the movement direction of the moving part.

[0020] In some embodiments, the conveying structure further includes a threaded screw, a nut, and a guide rail; the moving part is fixedly connected to the nut; the driving structure is driven by the screw; the guide rail is arranged parallel to the screw; and the moving part is slidably connected to the guide rail.

[0021] In some embodiments, the drive structure is a stepper motor, and the power output end of the stepper motor is connected to a lead screw via a coupling.

[0022] In some embodiments, the detection structure includes a support and a detection head; the support is fixedly connected to the moving part; the detection head is disposed on the support.

[0023] In some embodiments, the UV energy detection mechanism further has a third direction Z perpendicular to the first direction X and the second direction Y, and the bracket includes a body, a support portion, a bending portion and a connecting portion.

[0024] The support is located at the first end of the body in the third direction Z, and is located on the side of the body away from the support structure in the second direction Y; the detection head is located on the support.

[0025] The bending part is located at the second end of the body in the third direction Z, and is located on the side of the body in the second direction Y close to the supporting structure;

[0026] The connecting part is connected to the end of the bent part away from the main body, and is fixedly connected to the moving part.

[0027] Secondly, this application provides a UV curing device, which has a cavity and is equipped with the aforementioned UV energy detection mechanism, lamp tube and bearing mechanism.

[0028] The lamp tube extends along the second direction Y;

[0029] The support mechanism and the UV energy detection mechanism are located on the same side of the lamp tube;

[0030] The supporting mechanism moves along the first direction X; the projection of the movement trajectory of the supporting mechanism onto the horizontal plane passes through the middle region of the projection of the lamp tube onto the horizontal plane;

[0031] The detection structure moves synchronously with the supporting mechanism, and the projection of the movement trajectory of the detection structure onto the horizontal plane passes through the end area of ​​the lamp tube's projection onto the horizontal plane.

[0032] The conveying structure and support structure are located on the side of the detection structure away from the lamp tube.

[0033] Through the above technical solution, this application proposes a UV energy detection mechanism and a UV curing device. The detection structure moves under the drive of a moving part, thereby detecting the UV energy at different locations within the UV curing device, achieving automated operation. This reduces labor costs and operational complexity, minimizes the impact of manual operation, and improves detection accuracy. This application eliminates the need to stop the production line for UV energy detection and can record UV energy data in real time, alleviating the problem of lag in production quality control.

[0034] In addition, the detection structure, conveying structure and supporting structure of this application are arranged from near to far from the UV lamp tube, so that the conveying structure and supporting structure are as far away from the UV lamp tube as possible, thereby reducing the photoaging rate and extending the service life of the UV energy detection mechanism.

[0035] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0038] Figure 1 This is a schematic diagram of the structure of the UV energy detection mechanism provided in an exemplary embodiment of this disclosure;

[0039] Figure 2 This is a schematic diagram showing the positions of the UV energy detection mechanism, lamp tube, and support mechanism provided in the exemplary embodiments of this disclosure. Figure 2 The motion trajectory of the load-bearing mechanism is shown;

[0040] Figure 3 yes Figure 1 Side view of the UV energy detection mechanism;

[0041] Figure 4 yes Figure 2 Enlarged view of the structure at point A in the image;

[0042] Figure 5 This is a schematic diagram of the electrical connections of the detection head, processor, and display panel provided in an exemplary embodiment of this disclosure;

[0043] Figure 6 This is a schematic diagram of the electrical connections of the sensor, controller, and drive mechanism provided in an exemplary embodiment of this disclosure.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Conveying structure; 11. Moving part; 12. Lead screw; 13. Sensing plate; 14. Distance sensor; 15. Guide rail;

[0046] 2. Drive structure;

[0047] 3. Detection structure; 31. Support; 32. Detection head; 33. Tank chain; 311. Body; 312. Support part; 313. Bending part; 314. Connecting part;

[0048] 4. Supporting structure; 41. Protective components;

[0049] 5. Processor;

[0050] 6. Display panel;

[0051] 7. Controller;

[0052] 8. Light bulbs;

[0053] 9. Supporting mechanism. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0055] Traditional measurement methods utilize energy testing equipment. This involves placing the equipment on a production fixture to simulate the actual board loading process of a PCBA, thereby measuring the UV energy of the UV lamps. However, this method has several drawbacks: firstly, it incurs high labor costs and operational complexity; secondly, it requires line shutdown for testing, resulting in low measurement efficiency; and thirdly, it cannot record UV energy data in real time, leading to delays in production quality control. Furthermore, existing energy testing equipment has a relatively short lifespan under UV lamp irradiation.

[0056] This application proposes a UV energy detection mechanism with a simple structure, flexible and convenient detection method, and easy automation operation. It reduces the impact of manual operation, improves detection accuracy, and ensures the quality of tri-proof curing without affecting curing capacity, thus enhancing automation. Furthermore, this application mitigates the problem of direct irradiation by UV lamps through a reasonable structural arrangement, extending the service life of the UV energy detection mechanism.

[0057] Firstly, see Figures 1 to 3 This application provides a UV energy detection mechanism with a first direction X, a second direction Y, and a third direction Z. The UV energy detection mechanism includes a support structure 4, a conveying structure 1, a driving structure 2, and a detection structure 3. The conveying structure 1 is mounted on the support structure 4 and has a moving part 11 that can move along the first direction X. The driving structure 2 is connected to the moving part 11 to drive the moving part 11 to move along the first direction X. The detection structure 3 is disposed on the moving part 11 and can move under the drive of the moving part 11. The detection structure 3 is used to detect UV energy at different positions. The detection structure 3, the conveying structure 1, and the support structure 4 are arranged sequentially along the second direction Y.

[0058] Specifically, the first direction X, the second direction Y, and the third direction Z are mutually perpendicular. For example, the first direction X is left-right, the second direction Y is front-back, and the third direction Z is up-down. The moving part 11 drives the detection structure 3 to reciprocate. It can be understood that the UV energy detection mechanism is used to detect the UV energy of the UV lamp tube. UV energy is the ultraviolet radiation energy received per unit area. The projection of the movement trajectory of the detection mechanism 3 onto the horizontal plane intersects with the projection of the UV lamp tube onto the horizontal plane.

[0059] In the above embodiment, the driving structure 2 drives the moving part 11 to reciprocate along the first direction X, and the detection structure 3 reciprocates along with the moving part 11 to detect the UV energy at different positions in the motion trajectory. This detection process is fully automated through programmed control, requiring no manual operation, and can be executed synchronously with the UV curing process to avoid interfering with the continuity of the curing process.

[0060] In some embodiments, please refer to Figure 5 The UV energy detection mechanism also includes a processor 5 and a display panel 6. The detection structure 3 is connected to the processor 5 via a data cable, and a tank chain 33 is sleeved on the data cable. The two ends of the tank chain 33 are fixedly connected to the detection structure 3 and the processor 5, respectively. The processor 5 is electrically connected to the display panel 6. The detection structure 3 transmits the collected UV energy data to the processor 5, which is configured to perform signal analysis and numerical conversion on the received UV energy data. The display panel 6 displays the UV energy data processed by the processor 5.

[0061] Specifically, please refer to Figures 1 to 3 The support structure 4 is provided with a protective part 41, which is connected to the support structure 4 at both ends along the first direction X. The tank chain 33 and the conveying structure 1 are located on the same side of the protective part 41 in the third direction Z to block the UV lamp from irradiating and damaging the tank chain 33 and the conveying structure 1. For example, the protective part 41 is a U-shaped groove that extends along the first direction X and is located above the tank chain 33 and the conveying structure 1. It can be understood that the protective part 41 is located outside the movement trajectory of the detection structure 3 to avoid interfering with the movement of the detection mechanism 3.

[0062] In the above embodiments, the data cable is physically protected by the tank chain 33, effectively isolating it from mechanical wear and radiation aging, and extending the service life of the data cable. By setting the protective part 41, the direct irradiation of the UV lamp to the tank chain 33 and the conveying structure 1 can be avoided, and the protective part 41 is set as a U-shaped groove to provide light shielding in three directions, further reducing structural irradiation damage.

[0063] In some embodiments, please refer to Figure 6 The UV energy detection mechanism also includes a controller 7, which is electrically connected to the drive structure 2 and is configured to adjust the speed and direction of the motion part 11 by controlling the start / stop and output parameters of the drive structure 2.

[0064] Specifically, please refer to Figure 4The conveying structure 1 also includes a sensing plate 13 and a distance sensor 14. The sensing plate 13 is respectively disposed at both ends of the motion trajectory of the moving part 11. The distance sensor 14 is connected to the moving part 11 and electrically connected to the controller 7. The distance sensor 14 is configured to detect the distance between the moving part 11 and the sensing plate 13 and feed it back to the controller 7. The controller 7 has a preset distance threshold. When the detected distance between the moving part 11 and the sensing plate 13 is equal to the distance threshold, it outputs a reverse control signal to the drive structure 2 to switch the motion direction of the moving part 11.

[0065] For example, the sensing plate 13 is disposed on the protection part 41 and symmetrically disposed at both ends of the movement trajectory of the moving part 11. When the distance sensor 14 contacts the sensing plate 13, it detects that the horizontal distance between the moving part 11 and the sensing plate 13 is zero and feeds back to the controller 7. The controller's preset distance threshold is zero. At this time, it outputs a reverse control signal to the drive structure 2 to switch the movement direction of the moving part 11, so that the moving part 11 can reciprocate between the two sensing plates 13.

[0066] In some embodiments, please refer to Figure 4 The sensing plate 13 is disposed on the side of the protection part 41 away from the conveying structure 1 in the third direction Z, and the sensing plate 13 is provided with a roller, which is located on the outer side of the protection part 41 in the second direction Y near the detection structure 3; the distance sensor 14 is disposed on the side of the bracket 31 in the second direction Y near the sensing plate 13, so that the distance sensor 14 and the sensing plate 13 are in rolling contact, thereby reducing the frictional loss of the distance sensor 14.

[0067] In some embodiments, please refer to Figure 1 The conveying structure 1 also includes a threaded lead screw 12, a nut, and a guide rail 15; the moving part 11 is fixedly connected to the nut; the drive structure 2 is driven by the lead screw 12; the guide rail 15 is arranged parallel to the lead screw 12; and the moving part 11 is slidably connected to the guide rail 15. Specifically, the lead screw 12 is a ball screw; and the nut is a ball nut.

[0068] In some embodiments, please refer to Figure 1 The drive structure 2 is a stepper motor, and the power output end of the stepper motor is connected to the lead screw 12 through a coupling.

[0069] In some embodiments, please refer to Figure 1 The detection structure 3 includes a support 31 and a detection head 32; the support 31 is fixedly connected to the moving part 11; the detection head 32 is disposed on the support 31.

[0070] Specifically, please refer to Figure 3The support 31 includes a body 311, a support portion 312, a bending portion 313, and a connecting portion 314. The support portion 312 is disposed at the first end of the body 311 in the third direction Z, and is located on the side of the body 311 away from the support structure 4 in the second direction Y. The detection head 32 is disposed on the support portion 312. The bending portion 313 is disposed at the second end of the body 311 in the third direction Z, and is located on the side of the body 311 close to the support structure 4 in the second direction Y. The connecting portion 314 is connected to the end of the bending portion away from the body 311 and is fixedly connected to the moving part 11. For example, the body 311, support portion 312, bending portion 313, and connecting portion 314 are all plate-shaped structures. The support 31 is approximately stepped in shape, thereby realizing the sequential arrangement of the detection structure 3, the conveying structure 1, and the support structure 4 in the second direction Y.

[0071] Optionally, the distance sensor 14 is disposed on the side of the body 311 close to the sensing plate 13 in the second direction Y, so that when the moving part 11 moves to the end, the distance sensor 14 and the roller of the sensing plate 13 make rolling contact.

[0072] Secondly, please refer to Figure 1 and Figure 2 This application provides a UV curing device. The UV curing device has a cavity, in which the aforementioned UV energy detection mechanism, lamp 8, and support mechanism 9 are disposed. The UV energy detection mechanism also has a third direction Z perpendicular to the first direction X and the second direction Y. The lamp 8 extends along the second direction Y. The support mechanism 9 and the UV energy detection mechanism are located on the same side of the lamp 8 in the third direction Z. The support mechanism 9 moves along the first direction X. The projection of the movement trajectory of the support mechanism 9 onto the horizontal plane passes through the middle region of the projection of the lamp 8 onto the horizontal plane. The detection structure 3 moves synchronously with the support mechanism 9, and the projection of the movement trajectory of the detection structure 3 onto the horizontal plane passes through the end region of the projection of the lamp 8 onto the horizontal plane. The conveying structure 1 and the support structure 4 are located on the side of the detection structure 3 away from the lamp 8.

[0073] It is understandable that the detection structure 3, the conveying structure 1, and the supporting structure 4 are arranged in the second direction Y in order from near to far from the lamp tube 8, and the detection structure 3 is set at the end corresponding to the lamp tube 8, so that the conveying structure 1 and the supporting structure 4 can be far away from the lamp tube 8 to avoid direct UV radiation and extend the service life of the UV energy detection mechanism.

[0074] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0075] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0076] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0077] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A UV energy detection mechanism, characterized in that, The UV energy detection mechanism has intersecting first direction (X) and second direction (Y), and the UV energy detection mechanism includes: Support structure (4); A conveying structure (1) is mounted on the support structure (4) and has a moving part (11) that can move along the first direction (X). A drive structure (2) is connected to the moving part (11) for driving the moving part (11) to move along the first direction (X); The detection structure (3) is disposed on the moving part (11) and can move under the drive of the moving part (11). The detection structure (3) is used to detect the UV energy of the UV lamp tube. The detection structure (3), the conveying structure (1), and the support structure (4) are arranged sequentially along the second direction (Y).

2. The UV energy detection mechanism according to claim 1, characterized in that, The UV energy detection mechanism also includes a processor (5) and a display panel (6); The detection structure (3) is connected to the processor (5) via a data line. A tank chain (33) is sleeved on the data line. The two ends of the tank chain (33) are fixedly connected to the detection structure (3) and the processor (5) respectively. The processor (5) is electrically connected to the display panel (6); The detection structure (3) transmits the collected UV energy data to the processor (5), which is configured to perform signal analysis and numerical conversion on the received UV energy data; the display panel (6) is used to display the UV energy data processed by the processor (5).

3. The UV energy detection mechanism according to claim 2, characterized in that, The UV energy detection mechanism also has a third direction (Z) perpendicular to the first direction (X) and the second direction (Y). The support structure (4) is provided with a protective part (41). The two ends of the protective part (41) along the first direction (X) are respectively connected to the support structure (4). The tank chain (33) and the conveying structure (1) are located on the same side of the protective part (41) in the third direction (Z).

4. The UV energy detection mechanism according to claim 1, characterized in that, The UV energy detection mechanism also includes a controller (7), which is electrically connected to the drive structure (2) and is configured to adjust the speed and direction of the motion part (11) by controlling the start and stop and output parameters of the drive structure (2).

5. A UV energy detection mechanism according to claim 4, characterized in that, The conveying structure (1) also includes a sensing plate (13) and a distance sensor (14). The sensing plates (13) are respectively disposed at both ends of the motion trajectory of the moving part (11); The distance sensor (14) is connected to the motion unit (11) and electrically connected to the controller (7); the distance sensor (14) is configured to detect the distance from the motion unit (11) to the sensing plate (13) and feed it back to the controller (7). The controller (7) has a preset distance threshold. When the detected distance between the moving part (11) and the sensing plate (13) is equal to the distance threshold, it outputs a reverse control signal to the drive structure (2) to switch the movement direction of the moving part (11).

6. A UV energy detection mechanism according to claim 1, characterized in that, The conveying structure (1) further includes a threaded lead screw (12), a nut, and a guide rail (15); the moving part (11) is fixedly connected to the nut; the driving structure (2) is drivenly connected to the lead screw (12); the guide rail (15) is arranged parallel to the lead screw (12); the moving part (11) is slidably connected to the guide rail (15).

7. A UV energy detection mechanism according to claim 6, characterized in that, The drive structure (2) is a stepper motor, and the power output end of the stepper motor is connected to the lead screw (12) through a coupling.

8. A UV energy detection mechanism according to claim 1, characterized in that, The detection structure (3) includes a bracket (31) and a detection head (32); the bracket (31) is fixedly connected to the moving part (11); the detection head (32) is disposed on the bracket (31).

9. A UV energy detection mechanism according to claim 8, characterized in that, The UV energy detection mechanism also has a third direction (Z) perpendicular to the first direction (X) and the second direction (Y). The bracket (31) includes a body (311), a support (312), a bending part (313), and a connecting part (314). The support part (312) is disposed at the first end of the body (311) in the third direction (Z), and is located on the side of the body (311) away from the support structure (4) in the second direction (Y); the detection head (32) is disposed on the support part (312); The bending portion (313) is disposed at the second end of the body (311) in the third direction (Z), and is located on the side of the body (311) in the second direction (Y) close to the support structure (4); The connecting part (314) is connected to the end of the bending part away from the body (311) and is fixedly connected to the moving part (11).

10. A UV curing apparatus, characterized in that, The UV curing device has a cavity, and the cavity is provided with a UV energy detection mechanism, a lamp tube (8) and a support mechanism (9) as described in any one of claims 1-9. The lamp tube (8) extends along the second direction (Y); The supporting mechanism (9) and the UV energy detection mechanism are located on the same side of the lamp tube (8); The supporting mechanism (9) moves along the first direction (X); the projection of the movement trajectory of the supporting mechanism (9) on the horizontal plane passes through the middle region of the projection of the lamp tube (8) on the horizontal plane; The detection structure (3) moves synchronously with the support mechanism (9), and the projection of the movement trajectory of the detection structure (3) on the horizontal plane passes through the end area of ​​the projection of the lamp tube (8) on the horizontal plane; The conveying structure (1) and the supporting structure (4) are located on the side of the detection structure (3) away from the lamp tube (8).

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