UV lamp cover cleaning device based on uv energy density monitoring and control method thereof

Abstract

The application provides a UV lamp cover cleaning device based on UV energy density monitoring and a control method thereof, wherein the UV lamp cover cleaning device comprises a UV lamp, the UV lamp comprises a UV lamp tube, a reflecting cover and a UV lamp cover, the reflecting cover is arranged above the UV lamp tube, the UV lamp cover is arranged below the UV lamp tube, a first optical fiber UV energy density sensor is arranged in the reflecting cover, a second optical fiber UV energy density sensor is arranged below the UV lamp cover, first transmission mechanisms and second transmission mechanisms are arranged on both sides of the UV lamp, and a cleaning mechanism is arranged between the first transmission mechanisms and the second transmission mechanisms. According to the application, the data collected by the first optical fiber UV energy density sensor and the second optical fiber UV energy density sensor are compared, the difference in the UV energy density value is used as a threshold value, and when the threshold value is greater than a preset value, the cleaning mechanism is started, manual cleaning is not needed, and the work efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of UV lamp cover cleaning equipment technology, and in particular to a UV lamp cover cleaning device and its control method based on UV energy density monitoring. Background Technology

[0002] In the printing industry, UV inks are favored for their solvent-free nature, fast curing speed, and zero VOC (volatile organic compound) emissions, leading to their increasingly widespread application. After printing, UV inks require UV curing, making UV curing technology an indispensable part of the printing process. As a crucial component of the UV curing system, the energy density of the UV light source decreases with long-term operation, affecting the curing effect. To ensure optimal curing, the power must be gradually increased as the UV lamp wears down to maintain sufficient light intensity. Therefore, monitoring the UV light energy density during the curing process to ensure repeatability and consistency is critical for achieving the best UV curing results. Many factors contribute to the decrease in UV light energy density, including aging of the UV lamp itself and dust accumulation in the UV lamp cover, which severely impacts the lamp's transmittance.

[0003] Currently, UV power meters or UV probes are commonly used as monitoring devices for UV light energy density. However, these devices have drawbacks such as large size, high cost, inability to withstand high temperatures, difficulty in integration, and poor consistency of test results, making real-time data monitoring impossible. Furthermore, while existing technologies can clean UV lamps, they cannot yet achieve real-time linkage between data monitoring and UV lamp cover replacement / self-cleaning.

[0004] Therefore, existing technologies need to be improved and enhanced. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a UV lamp cover cleaning device and its control method based on UV energy density monitoring. The device can monitor the UV light energy density and adjust the power in real time, and automatically clean the lamp cover according to the monitoring status.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A UV lamp cover cleaning device based on UV energy density monitoring includes a UV lamp, which comprises a UV lamp tube, a reflector, and a UV lamp cover. The reflector is disposed above the UV lamp tube, and the UV lamp cover is disposed below the UV lamp tube. A first fiber optic UV energy density sensor is disposed inside the reflector, and a second fiber optic UV energy density sensor is disposed below the UV lamp cover. A first transmission mechanism and a second transmission mechanism are respectively disposed on both sides of the UV lamp, and a cleaning mechanism is disposed between the first transmission mechanism and the second transmission mechanism.

[0008] Furthermore, the first transmission mechanism includes a first mounting member disposed on one side of the UV lamp, the first mounting member being provided with a first worm gear, the first worm gear being threadedly connected to the cleaning mechanism. Furthermore, the cleaning mechanism includes a cloth roll and a sliding member, the sliding member being threadedly connected to the first worm gear, and support members being provided at both ends of the sliding member, one end of each of the two support members being rotatably connected to both ends of the cloth roll.

[0009] Furthermore, the second transmission mechanism includes a second mounting member disposed on the other side of the UV lamp, the second mounting member being provided with a second worm gear, the second worm gear being threadedly connected to a movable member, the movable member being engaged with a clamp for gripping the roll of fabric from the roll.

[0010] Furthermore, a third worm gear is provided between the first mounting component and the second mounting component, and a linkage box is threadedly connected to the third worm gear, the linkage box being engageable with the clamp.

[0011] Furthermore, a guide rod is provided above the third worm gear, and a hook is provided at the upper end of the linkage box. The hook is sleeved on the guide rod and slidably disposed with the guide rod.

[0012] Furthermore, the linkage box is provided with a socket, and the clamp is provided with a column, which is engaged with the socket.

[0013] Furthermore, a protrusion is provided on one side of the movable component, and a groove is provided on one side of the clamp, with the protrusion engaging with the groove.

[0014] Furthermore, the clamp includes a clamp body, and an upper clamping arm and a lower clamping arm for clamping the rolled cloth are respectively provided on the upper and lower sides of the clamp body.

[0015] Furthermore, the first mounting component is provided with a limiting slot for restricting the sliding of the cleaning mechanism.

[0016] Furthermore, the UV lamp cover is provided with a hydrophobic layer, the hydrophobic layer including a hydrophobic microlens array structure, the hydrophobic microlens array structure including lenses and micro protrusions, the lenses and the micro protrusions being distributed in an array.

[0017] A control method for a UV lamp cover cleaning device based on UV energy density monitoring includes:

[0018] When the difference in UV energy density detected by the first fiber optic UV energy density sensor and the second fiber optic UV energy density sensor is greater than a preset value, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe under the UV lamp.

[0019] Furthermore, when the preset value is 5%, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe back and forth once under the UV lamp;

[0020] When the preset value is 10%, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe back and forth twice under the UV lamp.

[0021] When the preset value is 13%, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe back and forth three times under the UV lamp.

[0022] Compared to existing technologies, the UV lamp cover cleaning device based on UV energy density monitoring provided by this invention includes a UV lamp, which comprises a UV lamp tube, a reflector, and a UV lamp cover. The reflector is positioned above the UV lamp tube, and the UV lamp cover is positioned below the UV lamp tube. A first fiber optic UV energy density sensor is disposed inside the reflector, and a second fiber optic UV energy density sensor is disposed below the UV lamp cover. A first transmission mechanism and a second transmission mechanism are respectively disposed on both sides of the UV lamp, and a cleaning mechanism is disposed between the first transmission mechanism and the second transmission mechanism. This invention compares data collected by the relatively positioned first and second fiber optic UV energy density sensors, using the difference in UV energy density values ​​as a threshold. When the threshold exceeds a preset value, the cleaning mechanism is activated to achieve the purpose of cleaning dust, eliminating the need for manual cleaning, saving time and effort, and improving work efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the UV lamp cover cleaning device based on UV energy density monitoring provided by the present invention.

[0025] Figure 2 An exploded view of the UV lamp cover cleaning device based on UV energy density monitoring provided by the present invention.

[0026] Figure 3 This is a simplified schematic diagram of the UV lamp cover cleaning device based on UV energy density monitoring provided by the present invention.

[0027] Figure 4 This is a partial assembly diagram of the UV lamp cover cleaning device based on UV energy density monitoring provided by the present invention.

[0028] Figure 5 This is a partial assembly diagram of the UV lamp cover cleaning device based on UV energy density monitoring provided by the present invention from another angle.

[0029] Figure 6 This is an exploded view of the fixture, linkage box, and moving parts.

[0030] Figure 7 This is an exploded view of the fixture, linkage box, and moving parts from another angle.

[0031] Figure 8 This is a schematic diagram of the fixture.

[0032] Figure 9 This is a schematic diagram of a hydrophobic microlens array structure.

[0033] Figure 10 This is a schematic diagram of a droplet on a hydrophobic microlens array structure.

[0034] In the diagram: UV lamp-1, UV lamp tube-2, reflector-3, UV lamp cover-4, first fiber optic UV energy density sensor-5, first transmission mechanism-6, second transmission mechanism-7, cleaning mechanism-8, first mounting component-9, first worm gear-10, cloth roll-up tube-11, sliding component-12, support component-13, limit slot-14, second mounting component-15, second worm gear-16, moving component-17, clamp-18, third worm gear-19, linkage box-20, guide rod-21, hook-22, column-23, insertion hole-24, protrusion-25, groove-26, clamp body-27, upper clamping arm-28, lower clamping arm-29, lens-30, micro protrusion-31. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention 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 the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0037] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the UV lamp cover 4 cleaning device based on UV energy density monitoring provided by the present invention includes a UV lamp 1, which includes a UV lamp tube 2, a reflector 3, and a UV lamp cover 4. The reflector 3 is disposed above the UV lamp tube 2, and the UV lamp cover 4 is disposed below the UV lamp tube 2. A first fiber optic UV energy density sensor 5 is disposed inside the reflector 3, and a second fiber optic UV energy density sensor 5b is disposed below the UV lamp cover 4. A first transmission mechanism 6 and a second transmission mechanism 7 are respectively disposed on both sides of the UV lamp, and a cleaning mechanism 8 is disposed between the first transmission mechanism 6 and the second transmission mechanism 7. That is, the first transmission mechanism 6 and the second transmission mechanism 7 can drive the cleaning mechanism 8 to move below the UV lamp, thereby wiping the UV lamp and achieving a cleaning effect.

[0039] Understandably, the first fiber optic UV energy density sensor 5 is used to monitor the energy density of the UV lamp tube 2 in real time and to replace the UV lamp in a timely manner according to its power attenuation; the second fiber optic UV energy density sensor 5b is used to monitor the energy density of the UV lamp cover 4. It should be noted that the first fiber optic UV energy sensor and the second fiber optic UV energy density sensor 5b are connected to a control motherboard, and the control motherboard is electrically connected to the first transmission mechanism 6 and the second transmission mechanism 7.

[0040] According to the present invention, by comparing the data collected by the first fiber optic UV energy density sensor 5 and the second fiber optic UV energy density sensor 5b which are set relative to each other, the difference in UV energy density values ​​is used as a threshold. When the threshold value is greater than a preset value, the cleaning mechanism 8 is activated to achieve the purpose of cleaning dust. No manual cleaning is required, saving time and effort and improving work efficiency.

[0041] Specifically, when the surface of the UV lamp cover 4 is clean and free of dust, the difference in UV energy density between the data collected by the first fiber optic UV energy density sensor 5 and the second fiber optic UV energy density sensor 5b is 3%, indicating high cleanliness and a cleanliness level of 1. When the surface of the UV lamp cover 4 adsorbs a small amount of dust, the difference in UV energy density is 4%, indicating high cleanliness and a cleanliness level of 2. When the surface of the UV lamp cover 4 adsorbs a large amount of dust, but the impact on light transmission is not significant, the difference in UV energy density is 5%, indicating medium cleanliness and a cleanliness level of 3. When the surface of the UV lamp cover 4 adsorbs a large amount of dust, affecting light transmission, the difference in UV energy density is 10%, indicating medium cleanliness and a cleanliness level of 4. When the surface of the UV lamp cover 4 adsorbs a large amount of dust, affecting light transmission, the difference in UV energy density is 12%, indicating low cleanliness and a cleanliness level of 5. When the surface of the UV lamp cover 4 adsorbs a large amount of dust, severely affecting light transmission, the difference in UV energy density is 13%, indicating high cleanliness and a cleanliness level of 6. It should be noted that setting a 5% difference in UV energy as the activation threshold for the UV lamp cover self-cleaning device will prompt the cleaning mechanism 8 to clean at any time based on the threshold. This ensures timely cleaning of the lamp cover to guarantee UV curing performance while avoiding the impact of frequent cleaning on production.

[0042] It should be noted that most commonly used UV energy density sensors are bulky and not heat-resistant. The fiber optic UV energy density sensor used in this invention achieves UV energy density monitoring by combining the sensor with optical fiber. Since UV lamps generate high temperatures during operation, to ensure the sensor's lifespan and the accuracy of the collected data, an array of optical fibers is used to collect data above the UV lamp on the reflector 3, and the UV light is guided onto the sensor surface to monitor changes in UV energy density. This method avoids sensor damage due to high operating temperatures and ensures the accuracy of the collected data.

[0043] In one embodiment, such as Figure 2 and 5 As shown, the first transmission mechanism 6 includes a first mounting member 9 disposed on one side of the UV lamp. The first mounting member 9 is provided with a first worm gear 10. The first worm gear 10 is threadedly connected to the cleaning mechanism 8. One end of the worm gear is connected to a drive motor. The drive motor is electrically connected to the control main board. The drive motor can make the first worm gear 10 rotate, thereby driving the cleaning mechanism 8 to move and clean below the UV lamp.

[0044] Furthermore, such as Figure 2 and 5 As shown, the cleaning mechanism 8 includes a cloth roll 11 and a sliding member 12. The sliding member 12 is threadedly connected to the first worm gear 10. Support members 13 are provided at both ends of the sliding member 12. One end of each of the two support members 13 is rotatably connected to both ends of the cloth roll 11. When the first worm gear 10 rotates, the sliding member 12 moves on the first worm gear 10. The cloth roll of the cloth roll 11 can be pulled out under the support of the support members 13 to clean the underside of the UV lamp.

[0045] Furthermore, such as Figure 2 and 5 As shown, the first mounting component 9 is provided with a limiting slot 14 for restricting the sliding of the cleaning mechanism 8. When the cleaning mechanism 8 is not in operation, the cleaning mechanism is located in the limiting slot 14, and the cloth roll 11 is located above the UV lamp. Since the cloth in the cloth roll 11 is wet, the cloth roll 11 being located above the UV lamp can reduce the moisture brought to the UV lamp by the cloth roll 11 when the cleaning mechanism 8 is not in operation, that is, reduce the humidity of the working environment of the UV lamp and ensure the smooth operation of the UV lamp.

[0046] It is understandable that when the cleaning structure is located in the limiting slot 14, that is, when the support member 13 is engaged with the limiting slot 14, the drive motor is started, and the first worm gear 10 rotates. Due to the engagement of the limiting slot 14 with the support member 13, the sliding member 12 cannot move relative to the first worm gear 10. Since the sliding member 12 is threadedly connected to the first worm gear 10, the sliding member 12 will rotate relative to the first worm gear 10. That is, the support member 13 and the roll 11 will gradually move from above the UV lamp to below the UV lamp. When the support member 13 disengages from the limiting slot 14, and the middle part of the support member 13 contacts the first mounting member 9, the support member 13 can stand against the first mounting member 9 and no longer moves further down below the UV lamp. At this time, the cleaning mechanism 8 is in the cleaning position. When the first worm gear 10 continues to rotate, the sliding member 12 moves on the first worm gear 10 under the rotation of the first worm gear 10, thereby providing the driving force for the cleaning mechanism 8 to clean, so that the cleaning mechanism 8 can wipe the lower side of the UV lamp.

[0047] Furthermore, such as Figure 2 and 4 As shown, the second transmission mechanism 7 includes a second mounting member 15 disposed on the other side of the UV lamp. The second mounting member 15 is provided with a second worm gear 16. The second worm gear 16 is threadedly connected to a moving member 17. The moving member 17 is engaged with a clamp 18 for clamping the roll of cloth from the roll 11. Under the clamping of the clamp 18, the moving member 17 can drive the roll of cloth to clean and wipe the underside of the UV lamp.

[0048] Furthermore, such as Figure 2 and 4As shown, a third worm gear 19 is provided between the first mounting component 9 and the second mounting component 15. A linkage box 20 is threadedly connected to the third worm gear 19, and the linkage box 20 can be engaged with the clamp 18. Before the cleaning work begins, the clamp 18 engages with the linkage box 20, and both the clamp 18 and the linkage box 20 are close to one side of the first mounting member 9. When the roll of cloth 11 reaches the designated cleaning position, the third worm gear 19 controls the clamp 18 to move towards the roll of cloth 11 until the clamp 18 picks up the roll of paper on the roll of cloth. Then, the third worm gear 19 drives the clamp 18 to move towards the second mounting member 15 until the clamp 18 engages with the moving member 17. At this point, the third worm gear 19 stops rotating. The third worm gear 19 controls the movement of the linkage box 20 to pick up the roll of cloth and to transfer the clamp 18 onto the moving member 17, so that the moving member 17 can drive the clamp 18 to move.

[0049] It should be noted that the movement directions of the linkage box 20 and the moving part 17 are perpendicular. That is, when the linkage box 20 engages with the clamp 18 and moves the clamp 18 to engage with the moving part 17, since the movement directions of the moving part 17 and the linkage box 20 are perpendicular, the side of the linkage box 20 and the clamp 18 parallel to the axial direction of the second worm gear 16 can be set as the engagement surface, so as to achieve the effect of transition movement of the clamp 18 from the linkage box 20 to the moving part 17.

[0050] Furthermore, such as Figure 2 , Figure 6 and Figure 7 As shown, a guide rod 21 is provided above the third worm gear 19, and a hook 22 is provided at the upper end of the linkage box 20. The hook 22 is sleeved on the guide rod 21 and slidably disposed with the guide rod 21. The linkage box 20 is used to drive the cleaning strip to clean the surface of the UV lamp cover 4. When the third worm gear 19 rotates, the linkage box 20 moves on the third worm gear 19. The hook 22 can prevent the linkage box 20 from rolling during the movement, which would cause the cleaning strip to roll and thus affect the cleaning efficiency.

[0051] Specifically, such as Figure 6 and Figure 7As shown, the linkage box 20 is provided with a socket 24, and the clamp 18 is provided with a column 23, which is engaged with the socket 24. The movable part 17 is provided with a protrusion 25 on one side, and the clamp 18 is provided with a groove 26 on one side, which is engaged with the groove 26. Understandably, when the cleaning mechanism 8 is started, the drive motor drives the roll 11 to rotate, causing the roll 11 to descend below the UV lamp cover 4. At this time, the clamp 18 is inserted into the linkage box 20. After the third worm gear 19 controls the clamp 18 to complete the clamping of the roll 11, the clamp 18 is moved to engage with the moving part 17, that is, the protrusion 25 engages with the groove 26. When the third worm gear 19 stops rotating, the second worm gear 16 rotates to drive the clamp 18 to move. At this time, under the engagement of the protrusion 25 and the groove 26, the moving part 17 gradually pulls the column 23 on the clamp 18 out of the insertion hole 24, and finally disengages the column 23 from the insertion hole 24.

[0052] Furthermore, such as Figure 8 As shown, the clamp 18 includes a clamp body 27, and the upper and lower sides of the clamp body 27 are respectively provided with an upper clamping arm 28 and a lower clamping arm 29 for clamping the rolled cloth.

[0053] It should be noted that the upper clamping arm 28 and the lower clamping arm 29 include rollers that contact the rolled fabric, and the lower clamping arm 29 is connected to a ratchet. That is, the rollers of the upper clamping arm 28 and the lower clamping arm 29 can only rotate in one direction. When the clamp 18 moves toward the first mounting member 9 to clamp the rolled fabric, the rollers on the upper clamping arm 28 and the lower clamping arm 29 can roll on the rolled fabric. When the rollers roll a certain distance on the rolled fabric, the third worm gear 19 controls the clamp 18 to move toward the second mounting member 15. At this time, the rollers on the upper clamping arm 28 and the lower clamping arm 29 cannot rotate. That is, at this time, static friction is generated between the rollers and the rolled fabric. This static friction can pull the rolled fabric out of the rolled fabric drum 11.

[0054] Preferably, the roll 11 is provided with a core, which can store the cleaning strip inside the roll 11. During the process of the cleaning strip being pulled, the core has a certain damping effect to prevent the cleaning strip from being too loose and affecting the cleaning effect.

[0055] Furthermore, a hydrophobic layer is provided on the UV lamp cover 4. The hydrophobic layer includes a hydrophobic microlens array. The hydrophobic microlens array structure includes lenses 30 and micro protrusions 31. The lenses 30 and the micro protrusions 31 are arranged in an array. The height of the lenses 30 is 10 μm and the period of the lenses 30 is 80 μm. The period of the micro protrusions 31 is 26 μm and their height is 26 μm. In fact, the liquid droplets are in contact with the micro protrusions 31. The contact angle θ between the liquid droplets and the material surface is greater than 90°, which is hydrophobic. The contact angle θ is greater than 150°, which is superhydrophobic. That is, after the UV lamp cover 4 is hydrophobic, dust is not easy to stick to the surface of the UV lamp cover 4, resulting in a better cleaning effect.

[0056] It should be noted that the hydrophobic layer is composed of high-temperature resistant materials. Due to the continuous irradiation of the UV lamp tube 2, the temperature on the UV lamp cover 4 is relatively high. That is, the hydrophobic layer is made of high-temperature resistant materials, which can maintain good hydrophobicity under the irradiation of the UV lamp tube 2.

[0057] Specifically, when the surface of the UV lamp cover 4 is clean and free of dust, the difference in UV energy density between the data collected by the first fiber optic UV energy density sensor 5 and the second fiber optic UV energy density sensor 5b is 3%, indicating high cleanliness and a cleanliness level of 1. When the surface of the UV lamp cover 4 adsorbs a small amount of dust, the difference in UV energy density is 4%, indicating high cleanliness and a cleanliness level of 2. When the surface of the UV lamp cover 4 adsorbs a large amount of dust, but the impact on light transmission is not significant, the difference in UV energy density is 5%, indicating medium cleanliness and a cleanliness level of 3. When the surface of the UV lamp cover 4 adsorbs a large amount of dust, affecting light transmission, the difference in UV energy density is 10%, indicating medium cleanliness and a cleanliness level of 4. When the surface of the UV lamp cover 4 adsorbs a large amount of dust, affecting light transmission, the difference in UV energy density is 12%, indicating low cleanliness and a cleanliness level of 5. When the surface of the UV lamp cover 4 adsorbs a large amount of dust, severely affecting light transmission, the difference in UV energy density is 13%, indicating high cleanliness and a cleanliness level of 6. It should be noted that setting a 5% difference in UV energy as the activation threshold for the UV lamp cover self-cleaning device will prompt the cleaning mechanism 8 to clean at any time based on the threshold. This ensures timely cleaning of the lamp cover to guarantee UV curing performance while avoiding the impact of frequent cleaning on production.

[0058] A control method for a UV lamp cover cleaning device based on UV energy density monitoring includes: when the difference in UV energy density detected by a first fiber optic UV energy density sensor and a second fiber optic UV energy density sensor is greater than a preset value; a first transmission mechanism and a second transmission mechanism drive a cleaning mechanism to wipe under the UV lamp.

[0059] Furthermore, when the preset value is 5%, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe back and forth once under the UV lamp;

[0060] When the preset value is 10%, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe back and forth twice under the UV lamp.

[0061] When the preset value is 13%, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe back and forth three times under the UV lamp.

[0062] By controlling the cleaning structure to perform different numbers of wipes based on the difference in UV energy density detected by the first fiber optic UV energy density sensor and the second fiber optic UV energy density sensor, a better cleaning effect can be achieved.

[0063] In summary, the UV lamp cover cleaning device based on UV energy density monitoring provided by this invention compares data collected by the first and second fiber optic UV energy density sensors, using the difference in UV energy density values ​​as a threshold. When the threshold exceeds a preset value, the cleaning mechanism is activated. The clamp picks up the cleaning strip, and under the action of the third worm gear and the linkage box, the clamp moves closer to the second worm gear. Then, the second worm gear, through a protrusion on the clamp, disengages the clamp from the linkage box. Simultaneously, the first and second transmission mechanisms drive the cloth roll to move synchronously with the clamp, thus wiping the UV lamp cover with the cleaning strip, achieving an automatic cleaning effect. This invention, by comparing data collected by the relatively positioned first and second fiber optic UV energy density sensors, using the difference in UV energy density values ​​as a threshold, activates the cleaning mechanism when the threshold exceeds a preset value, achieving the purpose of cleaning dust without manual cleaning, saving time and effort, and improving work efficiency.

[0064] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the scope of protection of the present invention.

Claims

1. A UV lamp cover cleaning device based on UV energy density monitoring, characterized in that, The system includes a UV lamp (1), which comprises a UV lamp tube (2), a reflector (3), and a UV lamp cover (4). The reflector (3) is positioned above the UV lamp tube (2), and the UV lamp cover (4) is positioned below the UV lamp tube (2). A first fiber optic UV energy density sensor (5a) is disposed inside the reflector (3), and a second fiber optic UV energy density sensor (5b) is disposed below the UV lamp cover (4). A first transmission mechanism (6) and a second transmission mechanism (7) are respectively disposed on both sides of the UV lamp, and a cleaning mechanism (8) is disposed between the first transmission mechanism (6) and the second transmission mechanism (7). A hydrophobic layer is disposed on the UV lamp cover (4), which includes a hydrophobic microlens array structure. The hydrophobic microlens array structure includes a lens (30) and micro-protrusions (31), which are arranged in an array. The transmission mechanism (6) includes a first mounting member (9) disposed on one side of the UV lamp (1). The first mounting member (9) is provided with a first worm gear (10). The first worm gear (10) is threadedly connected to the cleaning mechanism (8). The cleaning mechanism (8) includes a cloth roll (11) and a sliding member (12). The sliding member (12) is threadedly connected to the first worm gear (10). Support members (13) are provided at both ends of the sliding member (12). One end of each of the two support members (13) is rotatably connected to both ends of the cloth roll (11). The second transmission mechanism (7) includes a second mounting member (15) disposed on the other side of the UV lamp (1). The second mounting member (15) is provided with a second worm gear (16). The second worm gear (16) is threadedly connected to a moving member (17). The moving member (17) is engaged with a clamp (18) for clamping the cloth roll of the cloth roll (11).

2. The UV lamp cover cleaning device based on UV energy density monitoring according to claim 1, characterized in that, A third worm gear (19) is provided between the first mounting component (9) and the second mounting component (15). A linkage box (20) is threadedly connected to the third worm gear (19). The linkage box (20) and the clamp (18) can be engaged.

3. The UV lamp cover cleaning device based on UV energy density monitoring according to claim 2, characterized in that, A guide rod (21) is provided above the third worm gear (19), and a hook (22) is provided at the upper end of the linkage box (20). The hook (22) is sleeved on the guide rod (21) and is slidably disposed with the guide rod (21).

4. The UV lamp cover cleaning device based on UV energy density monitoring according to claim 2, characterized in that, The linkage box (20) is provided with a socket (24), and the clamp (18) is provided with a column (23), which is engaged with the socket (24).

5. A control method for a UV lamp cover cleaning device based on UV energy density monitoring as described in any one of claims 1-4, comprising: When the difference in UV energy density detected by the first fiber optic UV energy density sensor and the second fiber optic UV energy density sensor is greater than a preset value, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe under the UV lamp.

6. The control method of the UV lamp cover cleaning device based on UV energy density monitoring according to claim 5, wherein when the preset value is 5%, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe back and forth once under the UV lamp; When the preset value is 10%, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe back and forth twice under the UV lamp. When the preset value is 13%, the first transmission mechanism and the second transmission mechanism drive the cleaning mechanism to wipe back and forth three times under the UV lamp.

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