Infrared window pane cleaning system
The infrared window cleaning system, which uses an automated system and a nano-sponge for rotating wiping, solves the problems of low efficiency and substrate distortion in existing technologies, achieving a highly efficient and uniform cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ANHUI JINGWEI TECHNOLOGY CO LTD
- Filing Date
- 2026-02-04
- Publication Date
- 2026-06-09
AI Technical Summary
Existing infrared window cleaning technology is inefficient, manual wiping is uneven, resulting in surface distortion of the coated substrate, and ultrasonic cleaning has insufficient removal rate.
An automated system consisting of an upstream robotic arm, a conveyor mechanism, multiple working modules, and a downstream robotic arm, combined with nano-sponge rotation wiping and cleaning fluid rinsing, enables automated cleaning of the front and back sides of the infrared window.
It greatly improves cleaning and wiping efficiency, avoids surface distortion of the coated substrate, and ensures cleaning effect.
Smart Images
Figure CN122164694A_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of uncooled infrared detectors, and more specifically to an infrared window cleaning system. Background Technology
[0002] In uncooled infrared detectors, the infrared window needs to be cleaned before being installed in the housing (metal or ceramic). Traditional cleaning methods for infrared windows include manual wiping and ultrasonic cleaning. Manual wiping is inefficient, and uneven wiping pressure can easily lead to surface distortion of the coating substrate on the infrared window. Ultrasonic cleaning is insufficient for removing adhesive particles. Even with the assistance of a robotic arm, the cleaning efficiency still needs improvement because the robotic arm can only grip a single infrared window. Summary of the Invention
[0003] In view of the problems existing in the background art, one object of this disclosure is to provide an infrared window cleaning system that can greatly improve cleaning efficiency.
[0004] Another objective of this disclosure is to provide an infrared window cleaning system that can greatly improve wiping efficiency.
[0005] Another object of this disclosure is to provide an infrared window cleaning system that applies uniform wiping force, thereby reducing the likelihood of surface distortion of the coating substrate of the infrared window.
[0006] Therefore, an infrared window cleaning system includes: an upstream robotic arm for removing infrared window adsorption clamps from an upstream window box; the infrared window is rectangular and has a coated substrate and horizontal U-shaped metallized portions surrounding the four sides of the coated substrate, wherein the metallized portions on two sides have opposing first faces, and the metallized portions on the other two sides have opposing second faces; the upstream robotic arm adsorbs the first faces of the infrared window; an upstream belt conveyor mechanism for receiving the infrared window from the upstream robotic arm, clamping the two second faces of the infrared window, and conveying the infrared window downstream along a first horizontal direction; a first working module for receiving the infrared window conveyed by the upstream belt conveyor mechanism, clamping the two second faces of the infrared window, and immersing the received infrared window for cleaning; and a second working module for receiving the infrared window cleaned by the first working module and clamping the infrared window. The system consists of two second facades, a third working module, and a fourth working module. The second working module receives the infrared window sheet after cleaning by the second working module, holds the two second facades of the infrared window sheet, and reverses the received infrared window sheet, wiping the back with a nano-sponge and rinsing the front with cleaning solution. The system also includes a downstream conveyor mechanism, which receives the dried infrared window sheet from the fourth working module, holds the two second facades of the infrared window sheet, and dries both sides of the received infrared window sheet. A downstream robotic arm is used to pick up the infrared window sheet from the downstream conveyor mechanism, holding the first facade with the infrared window sheet attached, and then transfers it to the downstream window sheet box.
[0007] The beneficial effects of this disclosure are as follows.
[0008] Compared with the cleaning methods in the prior art, the infrared window cleaning system according to this disclosure achieves automated cleaning of the front and back sides of the infrared window through an upstream robotic arm, an upstream belt conveyor mechanism, a first working module, a second working module, a third working module, a fourth working module, a downstream belt conveyor mechanism, and a downstream robotic arm, greatly improving cleaning efficiency.
[0009] Compared with manual wiping in the prior art, in the infrared window cleaning system according to the present disclosure, both the second and third working modules use nano-sponge to rotate and wipe the corresponding surface of the infrared window, which greatly improves the wiping efficiency. The nano-sponge rotation wiping has uniform force, which makes it less likely to cause surface distortion of the coating substrate of the infrared window. Attached Figure Description
[0010] Figure 1 It is a 3D view of the infrared window.
[0011] Figure 2 This is a plan view of the infrared window cleaning system according to the present disclosure.
[0012] Figure 3 This is a top view schematic diagram of the upstream side belt conveyor and the downstream side belt conveyor of the infrared window cleaning system.
[0013] Figure 4 This is a top view schematic diagram of some components of the first working module of the infrared window cleaning system.
[0014] Figure 5 yes Figure 2 Enlarged view of some components of the second working module of the infrared window cleaning system.
[0015] Figure 6 yes Figure 2 An enlarged view of some components of the third working module of the infrared window cleaning system, wherein the dashed lines show the infrared window with the front and back sides not reversed, and the solid lines show the infrared window with the front and back sides reversed.
[0016] Figure 7 This is a top view schematic diagram of some components of the third working module of the infrared window cleaning system.
[0017] Figure 8 yes Figure 2 Enlarged view of some components of the fourth working module of the infrared window cleaning system.
[0018] Figure 9 It is a cross-sectional view of the infrared window and the transmission unit.
[0019] Figure 10 This is an infrared window photograph of Example 1 before cleaning.
[0020] Figure 11 This is a photograph of another infrared window before cleaning in Example 1.
[0021] Figure 12 This is a photograph of the infrared window after cleaning, as shown in Example 1.
[0022] The reference numerals in the attached figures are explained as follows: 100 Infrared Window Cleaning System D1 First horizontal direction D2 Second Horizontal Direction V vertical direction 1. Upstream robotic arm 2. Upstream side conveyor mechanism 3 First Working Module 31 First Working Area 311 First Import 312 First Cavity 32 support bases 33 lifting units 34 heaters 4. Second Working Module 41 Second Work Area 411 Second Import 412 Second cavity 42nm sponge drive mechanism 43 Cleaning fluid rinsing mechanism 5. Third Working Module 51 Third Work Area 52 stents 53 rotating units 54nm sponge drive unit 55 Cleaning Fluid Flushing Unit 6. Fourth Working Module 61 Fourth Work Area 611 Fourth Import 612 Fourth Cavity 613 Export 62 Nitrogen Drying Unit 7 Downstream side belt conveyor mechanism 8 Downstream robotic arms U-belt transmission unit U1 pulley U2 connecting shaft U3 Circulation Belt U4 Rotary Motor U5 Flexible Deformable Material NS Nano Sponge 200 upstream side window box 300 Infrared Window 300a coating substrate 300b metallized area S1 First Facade S2 Second Facade S3 bottom 400 downstream side window box 500 soaking solution Detailed Implementation
[0023] It will be understood that the disclosed embodiments are merely examples of this disclosure, which can be implemented in various forms. Therefore, the specific details disclosed herein should not be construed as limiting, but are intended only as the basis for the claims and as an illustrative basis to teach those skilled in the art how to implement this disclosure in various ways.
[0024] Infrared window cleaning system Reference Figure 2 and combined Figure 1and Figures 3 to 9 The infrared window cleaning system 100 disclosed herein includes an upstream robotic arm 1, an upstream belt conveyor mechanism 2, a first working module 3, a second working module 4, a third working module 5, a fourth working module 6, a downstream belt conveyor mechanism 7, and a downstream robotic arm 8.
[0025] The upstream robotic arm 1 is used to remove the infrared window 300 from the upstream window box 200 by adsorption clamping. The infrared window 300 is rectangular and has a coated substrate 300a and four metallized portions 300b that surround the coated substrate 300a in a horizontal U-shape. The metallized portions 300b on two sides have opposing first facades S1, and the metallized portions 300b on the other two sides have opposing second facades S2. The upstream robotic arm 1 adsorbs the first facades S1 of the infrared window 300. The upstream conveyor mechanism 2 is used to receive the infrared window 300 from the upstream robotic arm 1, clamp the two second facades S2 of the infrared window 300, and convey the infrared window 300 downstream along the first horizontal direction D1. The first working module 3 is used to receive the infrared window 300 conveyed from the upstream conveyor mechanism 2, clamp the two second facades S2 of the infrared window 300, and immerse and clean the received infrared window 300. The second working module 4 receives the infrared window 300 cleaned by the first working module 3, clamps the two second surfaces S2 of the infrared window 300, and performs a rotary wipe on the front of the received infrared window 300 using a nano sponge NS, and a rinse on the back using cleaning fluid. The third working module 5 receives the infrared window 300 cleaned by the second working module 4, clamps the two second surfaces S2 of the infrared window 300, and reverses the front and back of the received infrared window 300, performing a rotary wipe on the back using a nano sponge NS, and a rinse on the front using cleaning fluid. The fourth working module 6 receives the infrared window 300 cleaned by the third working module 5, clamps the two second surfaces S2 of the infrared window 300, and dries the received infrared window 300 on both sides. The downstream conveyor mechanism 7 receives the infrared window 300 dried by the fourth working module 6, clamps the two second surfaces S2 of the infrared window 300, and conveys it downstream. The downstream robotic arm 8 is used to adsorb and hold the first facade S1 of the infrared window 300 attached to the downstream belt conveyor 7 to remove the infrared window 300 from the downstream belt conveyor 7 and transfer it to the downstream window box 400.
[0026] Compared with the cleaning methods in the prior art, the infrared window cleaning system 100 according to this disclosure achieves automated cleaning of the front and back sides of the infrared window 300 through the upstream robotic arm 1, the upstream belt conveyor mechanism 2, the first working module 3, the second working module 4, the third working module 5, the fourth working module 6, the downstream belt conveyor mechanism 7, and the downstream robotic arm 8, which greatly improves the cleaning efficiency.
[0027] Compared with manual wiping in the prior art, in the infrared window cleaning system 100 according to the present disclosure, both the second working module 4 and the third working module 5 use nano sponges NS to rotate and wipe the corresponding surface of the infrared window 300, which greatly improves the wiping efficiency. The nano sponges NS rotate and wipe with uniform force, which makes it less likely to cause surface distortion of the coating substrate 300a of the infrared window 300.
[0028] In the infrared window cleaning system 100 according to the present disclosure, the upstream robotic arm 1 and the downstream robotic arm 8 adsorb and clamp the first surface S1 of the infrared window 300, while the upstream belt conveyor mechanism 2, the first working module 3, the second working module 4, the third working module 5, the fourth working module 6, and the downstream belt conveyor mechanism 7 clamp the two second surfaces S2 of the infrared window 300, which can avoid contact with and contamination of the portion of the coating substrate 300a of the infrared window 300 exposed in the metallized portion 300b.
[0029] In the infrared window cleaning system 100 according to the present disclosure, the first facade S1 of the infrared window 300 adsorbed by the upstream robotic arm 1 and the downstream robotic arm 8 can be the first facade S1 at only one side, or it can be the first facade S1 at both sides of the infrared window 300 adsorbed at the same time, which is similar to the clamping method.
[0030] Reference Figures 2 to 9In one example, the upstream belt conveyor mechanism 2, the first working module 3, the second working module 4, the third working module 5, the fourth working module 6, and the downstream belt conveyor mechanism 7 all include a belt conveying unit U. The belt conveying unit U has two pairs of pulleys U1, two connecting shafts U2, two circulating belts U3, and a rotary motor U4. Two pairs of pulleys U1 are spaced apart along a first horizontal direction D1; each connecting shaft U2 passes through and is fixed to a corresponding pair of pulleys U1 in a second horizontal direction D2 perpendicular to the first horizontal direction D1; two circulating belts U3 are opposite and spaced apart in the second horizontal direction D2, with each end of the circulating belt U3 fitted onto one of the pulleys U1 in a corresponding pair of pulleys U1; a rotary motor U4 is connected to one of the connecting shafts U2 so that the pair of pulleys U1 corresponding to that connecting shaft U2 acts as the driving pulleys, and the pair of pulleys U1 connected to the other connecting shaft U2 acts as the driven pulleys; flexible deformable material U5 is provided on the opposite sides of each circulating belt U3, and the flexible deformable material U5 on the two circulating belts U3 clamps the two second facades S2 of the received infrared window 300 through flexible deformation. The use of flexible deformable material U5 facilitates the placement of the infrared window 300 from the upstream robotic arm 1 between the two circulating belts U3 of the upstream belt conveyor mechanism 2, and facilitates the removal of the infrared window 300 from the downstream belt conveyor mechanism 7 by the downstream robotic arm 8. Compared to rigid clamping, the use of flexible deformable material U5 can avoid damage to the two second facades S2 of the infrared window 300, as well as damage to the coating substrate 300a of the infrared window 300, especially suitable for situations where the substrate material of the coating substrate 300a is a brittle infrared material (germanium, zinc selenide, etc.). Of course, the substrate material in the coating substrate 300a can be, but is not limited to, germanium, zinc selenide, silicon, or zinc sulfide.
[0031] like Figure 9 As shown, in one example, the cross-section of each circulation belt U3 is L-shaped, and the cross-section of the flexible deformable material U5 on each circulation belt U3 is L-shaped, consisting of the second vertical surface S2 and the bottom surface S3 of the contact metallized portion 300b. The two L-shapes are flush with each other on the inner side along the vertical direction V and do not exceed the metallized portion 300b of the infrared window 300, thus completely exposing the portion of the coating substrate 300a of the infrared window 300 within the metallized portion 300b. Therefore, the flexible deformable material U5 on the two circulation belts U3 forms abutment against the bottom surface S3 of the metallized portion 300b in the vertical direction and clamps the second vertical surfaces S2 on both sides in the second horizontal direction D2, thereby stably clamping the infrared window 300. Specifically, the flexible deformable material U5 is silicone.
[0032] Reference Figure 2 and Figure 4In one example, the first working module 3 further includes a first working area 31, two support seats 32, and two lifting units 33. The first working area 31 has a first inlet 311 and a first cavity 312. The first inlet 311 allows the infrared window 300 conveyed by the upstream belt conveyor 2 to enter the first cavity 312 and be received by the belt conveyor unit U of the first working module 3. The first cavity 312 is used to contain the soaking liquid 500. One support seat 32 fixes and supports the rotary motor U4 and is bearing-connected to the end of the corresponding connecting shaft U2 opposite to the rotary motor U4 to support the connecting shaft U2 together with the rotary motor U4. The other support seat 32 is bearing-connected to both ends of the connecting shaft U2 corresponding to the driven pulley to support the connecting shaft U2. Two lifting units 33 are respectively connected to two support bases 32, so as to lower the two support bases 32 together with the belt conveyor unit U in the vertical direction V into the immersion liquid 500 to immerse the infrared window 300 held by the belt conveyor unit U in the immersion liquid 500 for soaking and cleaning, and to raise the two support bases 32 together with the belt conveyor unit U in the vertical direction V to detach them from the immersion liquid 500. The lifting unit 33 can be connected to the support base 32 in the following ways: Figure 4 The diagram shows a transverse configuration. In the first working module 3, for example, the immersion solution 500 uses 0.005-0.02 wt% perfluoropolyether cleaning solution, accompanied by 1 MHz megohms, with the immersion temperature controlled at 30-50°C (via heater 34), and the immersion time is 5-10 minutes. Specifically, the immersion solution 500 uses 0.01 wt% perfluoropolyether cleaning solution, with the immersion temperature controlled at 40°C. Megohms increase penetration and are suitable for cleaning and removing large particles from surfaces. Immersion heating can enhance cleaning efficiency and shorten cleaning time, but heating increases energy consumption, and the higher the temperature, the higher the energy consumption. Therefore, temperature control is necessary. In addition, controlling the temperature at 30-50°C can prevent the thermal decomposition of the perfluoropolyether cleaning solution to produce highly toxic perfluoroisobutylene. The perfluoropolyether cleaning solution has no swelling effect on the coating (i.e., antireflective film) of the coating substrate 300b, and no corrosive effect on the substrate material of the coating substrate 300b. It is adept at removing complex stains with nanoparticles embedded in the oil film.
[0033] Reference Figure 2 and Figure 5In one example, the second working module 4 further includes a second working area 41, a nano-sponge driving mechanism 42, and a cleaning fluid rinsing mechanism 43. The second working area 41 has a second inlet 411 and a second cavity 412. The second inlet 411 allows the infrared window 300, delivered by the first working module 3, to enter the second cavity 412 and be received by the conveyor unit U of the second working module 4. The nano-sponge driving mechanism 42 can move up and down in the vertical direction V to contact or detach from the front of the infrared window 300, and can drive the nano-sponge NS to translate in the first horizontal direction D1 and rotate around the second horizontal direction D2 to wipe the front of the infrared window 300. The cleaning fluid rinsing mechanism 43 can rinse the back of the infrared window 300 with cleaning fluid. The specific structure of the nano-sponge driving mechanism 42 to achieve lifting, translation, and rotation can be implemented in any known way, for example, lifting can be achieved by a cylinder, translation can be achieved by a cylinder, and rotation can be achieved by a motor. In the second working module 4, specifically, the nano-sponge NS initially contacts the infrared window 300 at 200 rpm, gradually increasing to 300 rpm within 10 seconds, with a pressure of 0.1 N / cm. 2 The cleaning fluid used is perfluoropolyether cleaning fluid, with ultrasonic rinsing at 80kHz and a power density of 8W / cm³. 2 The cavitation bubble diameter is ≤10μm, and the rinsing time is 1-3 minutes. Ultrasound can enhance the cavitation effect and improve the cleaning effect. The advantages of perfluoropolyether cleaning fluid are described above and will not be repeated here.
[0034] Reference Figure 2 , Figure 6 and Figure 7In one example, the third working module 5 further includes a third working area 51, two supports 52, two rotating units 53, a nano-sponge driving unit 54, and a cleaning fluid rinsing unit 55. The third working area 51 has a third inlet 511 and a third cavity 512. The infrared window 300 conveyed by the second working module 4 enters the third cavity 512 through the third inlet 511 and is received by the belt conveyor unit U of the third working module 5. One support 52 fixes and supports the rotary motor U4 of the belt conveyor unit U of the third working module 5 and is bearing-connected to the opposite end of the corresponding connecting shaft U2 to support the connecting shaft U2 together with the rotary motor U4. The other support 52 is bearing-connected to both ends of the connecting shaft U2 corresponding to the driven pulley of the belt conveyor unit U of the third working module 5 to support the connecting shaft U2. The two rotating units 53 are respectively connected to the two supports 52 to connect the two supports 52 together with the third working module 5. The conveyor unit U rotates 180 degrees around the first horizontal direction D1, so that the front and back sides of the infrared window 300 held by the conveyor unit U of the third working module 5 are reversed. The nano-sponge driving unit 54 can reciprocate in the second horizontal direction D2 to drive the nano-sponge NS to be inserted into the recirculating belt U3 after the front and back sides of the infrared window 300 are reversed, can drive the nano-sponge NS to rise and fall in the vertical direction V to contact or detach from the back side of the infrared window 300, and can drive the nano-sponge NS to translate in the first horizontal direction D1 and rotate around the second horizontal direction D2 to wipe the back side of the infrared window 300. The cleaning fluid rinsing mechanism 43 can rinse the front side of the infrared window 300 with cleaning fluid. Similarly, the specific structure of the reciprocating movement, rising and falling, translating and rotating of the nano-sponge driving unit 54 can be implemented in any known way. For example, the reciprocating movement, rising and falling and translating can each be implemented by a cylinder, and the rotation can be implemented by a motor. Furthermore, the two rotating units 53 can rotate the two supports 52 together with the belt conveyor unit U of the third working module 5 by 180 degrees in the opposite direction around the first horizontal direction D1 to reset the belt conveyor unit U of the third working module 5. This facilitates the operation between the third working module 5 and the second working module 4, as well as the operation between the third working module 5 and the fourth working module 6. In the third working module 5, for example, the nano-sponge NS initially contacts the infrared window 300 at 200 rpm, gradually increasing to 300 rpm within 10 seconds, with a pressure of 0.1 N / cm. 2 The cleaning solution used is perfluoropolyether cleaning solution, ultrasonic rinsing at 80kHz, power density of 8W / cm², cavitation bubble diameter ≤10μm, and rinsing time of 1-3min. The advantages of ultrasonic cleaning and perfluoropolyether cleaning solution are described above and will not be repeated here.
[0035] Reference Figure 2 and Figure 8In one example, the fourth working module 6 further includes a fourth working area 61 and multiple nitrogen drying units 62. The fourth working area 61 has a fourth inlet 611, a fourth cavity 612, and an outlet 613. The fourth inlet 611 allows the infrared window 300 conveyed by the third working module 5 to enter the fourth cavity 612 and be received by the belt conveyor unit U of the fourth working module 6. The outlet 613 allows the infrared window 300 conveyed from the fourth working module 6 to exit the fourth cavity 612 and be received by the downstream belt conveyor mechanism 7. The multiple nitrogen drying units 62 are distributed on the upper and lower sides of the infrared window 300 held by the fourth working module 6 to dry the front and back sides of the infrared window 300 held by the fourth working module 6 with nitrogen. In the fourth working module 6, for example, the nitrogen drying time is 1-3 minutes.
[0036] In the infrared window cleaning system 100 according to this disclosure, reference is made to... Figure 2 The upstream conveyor mechanism 2, the first inlet 311 of the first working module 3, the conveyor unit U, the two support seats 32, and the two lifting units 33, the second inlet 411 of the second working module 4, the conveyor unit U, the nano-sponge drive mechanism 42, and the cleaning fluid rinsing mechanism 43, the third inlet 511 of the third working module 5, the conveyor unit U, the two supports 52, the two rotating units 53, the nano-sponge drive unit 54, and the cleaning fluid rinsing unit 55, the fourth inlet 611 of the fourth working module 6, the conveyor unit U, and the outlet 613, and the downstream conveyor mechanism 7 are used as a cleaning production line. In actual production, multiple parallel production lines can be set up. In this way, a single upstream robotic arm 1 and a single downstream robotic arm 8 work in conjunction with multiple parallel production lines (the first cavity 312, the second cavity 412, the third cavity 512, and the fourth cavity 612 are all one) to achieve a larger scale of cleaning.
[0037] [test] Example 1 The infrared window cleaning system in Example 1 adopts Figures 1 to 9 The structure includes a substrate 300a made of germanium, a metallized portion 300b made of chromium-nickel-gold alloy, an upstream conveyor mechanism 2, a first working module 3, a second working module 4, a third working module 5, a fourth working module 6, and a downstream conveyor mechanism 7, all of which include a conveyor unit U. Each circulating belt U3 has an L-shaped cross-section, and the flexible deformable material U5 on each circulating belt U3 has an L-shaped cross-section that is in contact with the second vertical surface S2 and the bottom surface S3 of the metallized portion 300b. The two L-shapes are flush with each other on the inner side along the vertical direction V and do not exceed the metallized portion 300b of the infrared window 300 to completely expose the portion of the coated substrate 300a of the infrared window 300 within the metallized portion 300b. The flexible deformable material U5 is silicone.
[0038] The processes for the first working module 3, the second working module 4, the third working module 5, and the fourth working module 6 in Example 1 are as follows: In the first working module 3, the immersion solution 500 uses a 0.01wt% perfluoropolyether cleaning solution, accompanied by 1MHz megahertz sound, the immersion temperature is controlled at 40℃, and the immersion time is 8min; In the second working module 4, the nano-sponge NS initially contacts the infrared window 300 at 200rpm, gradually increasing to 300rpm within 10s, with a pressure of 0.1N / cm. 2 The cleaning fluid used is perfluoropolyether cleaning fluid, with ultrasonic rinsing at 80kHz and a power density of 8W / cm³. 2 The cavitation bubble diameter is ≤10μm, and the rinsing time is 2min; in the third working module 5, the nano-sponge NS initially contacts the infrared window 300 at 200rpm, gradually increasing to 300rpm within 10s, with a pressure of 0.1N / cm. 2 The cleaning fluid used is perfluoropolyether cleaning fluid, ultrasonic rinsing at 80kHz, power density of 8W / cm², cavitation bubble diameter ≤10μm, and rinsing time of 2min; in the fourth working module 6, nitrogen blowing time is 2min.
[0039] Figure 10 This is a photo of an infrared window before cleaning; the window has fingerprints on it. Figure 11 This is a photo of another infrared window before cleaning; the infrared window contains dispersed particles. Figure 12 The image shows an infrared window after cleaning according to the infrared window cleaning system disclosed herein. The surface of the infrared window is clean.
[0040] Several exemplary embodiments have been described in detail above, but this document is not intended to limit itself to the explicitly disclosed combinations. Therefore, unless otherwise stated, the various features disclosed herein can be combined to form several other combinations, which are not shown for simplicity.
Claims
1. An infrared window cleaning system, characterized in that, include: An upstream robotic arm (1) is used to remove an infrared window (300) from an upstream window box (200). The infrared window (300) is rectangular and has a coating substrate (300a) and metallized portions (300b) that surround the coating substrate (300a) in a horizontal U-shape. The metallized portions (300b) on two sides have opposing first facades (S1), and the metallized portions (300b) on the other two sides have opposing second facades (S2). The upstream robotic arm (1) adsorbs the first facade (S1) of the infrared window (300). The upstream conveyor mechanism (2) is used to receive the infrared window (300) from the upstream robotic arm (1), clamp the two second facades (S2) of the infrared window (300), and convey the infrared window (300) downstream along the first horizontal direction (D1). The first working module (3) is used to receive the infrared window (300) transmitted from the upstream side conveyor mechanism (2), the two second facades (S2) that hold the infrared window (300), and to soak and clean the received infrared window (300). The second working module (4) is used to receive the infrared window (300) cleaned by the first working module (3), hold the two second surfaces (S2) of the infrared window (300), and wipe the front of the received infrared window (300) with a nano sponge (NS) and rinse the back with a cleaning solution. The third working module (5) is used to receive the infrared window (300) after being wiped and cleaned by the second working module (4), hold the two second surfaces (S2) of the infrared window (300), and reverse the front and back of the received infrared window (300), use nano sponge (NS) to rotate and wipe the back, and use cleaning solution to rinse the front. The fourth working module (6) is used to receive the infrared window (300) after being wiped and cleaned by the third working module (5), hold the two second surfaces (S2) of the infrared window (300), and dry the received infrared window (300) on both sides. The downstream conveyor mechanism (7) is used to receive the infrared window (300) dried by the fourth working module (6), the two second facades (S2) that hold the infrared window (300) and convey it downstream; Downstream robotic arm (8) is used to grip the first facet (S1) of the infrared window (300) attached to the downstream belt conveyor (7) to remove the infrared window (300) from the downstream belt conveyor (7) and transfer it to the downstream window box (400).
2. The infrared window cleaning system according to claim 1, characterized in that, The upstream belt conveyor (2), the first working module (3), the second working module (4), the third working module (5), the fourth working module (6), and the downstream belt conveyor (7) all include a belt conveyor unit (U). The belt conveyor unit (U) has two pairs of pulleys (U1), two connecting shafts (U2), two circulating belts (U3), and a rotary motor (U4). Two pairs of pulleys (U1) are arranged at intervals along the first horizontal direction (D1); Each connecting shaft (U2) passes through and is fixed to a corresponding pair of pulleys (U1) in a second horizontal direction (D2) that is perpendicular to the first horizontal direction (D1). Two circulating belts (U3) are opposite each other and spaced apart in the second horizontal direction (D2), and each end of the circulating belt (U3) is fitted onto one of the corresponding pair of pulleys (U1); A rotary motor (U4) is connected to one of the connecting shafts (U2) such that a pair of pulleys (U1) corresponding to that connecting shaft (U2) serves as the driving pulleys, and a pair of pulleys (U1) connected to the other connecting shaft (U2) serves as the driven pulleys; Flexible deformable material (U5) is provided on the opposite sides of each circulation belt (U3), and the flexible deformable material (U5) on the two circulation belts (U3) clamps the two second facades (S2) of the received infrared window (300) through flexible deformation.
3. The infrared window cleaning system according to claim 2, characterized in that, The cross-section of each circulation band (U3) is L-shaped. The cross-section of the flexible deformable material (U5) on each circulation belt (U3) is L-shaped, consisting of the second vertical surface (S2) and the bottom surface (S3) of the contact metallized part (300b). The two L-shaped plates are flush with each other on the inner side along the vertical direction (V) and do not exceed the metallized portion (300b) of the infrared window (300) so as to fully expose the portion of the coating substrate (300a) of the infrared window (300) within the metallized portion (300b).
4. The infrared window cleaning system according to claim 2, characterized in that, The flexible deformable material (U5) is silicone.
5. The infrared window cleaning system according to claim 1, characterized in that, The substrate material in the coating substrate (300a) is germanium, zinc selenide, silicon or zinc sulfide.
6. The infrared window cleaning system according to claim 2, characterized in that, The first working module (3) also includes a first working area (31), two support seats (32), and two lifting units (33): The first working area (31) has a first inlet (311) and a first cavity (312). The first inlet (311) allows the infrared window (300) conveyed by the upstream belt conveyor (2) to enter the first cavity (312) and be received by the belt conveyor unit (U) of the first working module (3). The first cavity (312) is used to contain the soaking liquid (500). One support (32) fixes and supports the rotary motor (U4) and bears the end of the corresponding connecting shaft (U2) opposite to the rotary motor (U4) to support the connecting shaft (U2) together with the rotary motor (U4). Another support (32) bears the two ends of the connecting shaft (U2) corresponding to the driven pulley to support the connecting shaft (U2). Two lifting units (33) are respectively connected to two support bases (32) to lower the two support bases (32) together with the belt conveyor unit (U) in the vertical direction (V) into the soaking liquid (500) to immerse the infrared window (300) held by the belt conveyor unit (U) in the soaking liquid (500) for soaking and cleaning, and to raise the two support bases (32) together with the belt conveyor unit (U) in the vertical direction (V) to get out of the soaking liquid (500).
7. The infrared window cleaning system according to claim 2, characterized in that, The second working module (4) also includes a second working area (41), a nano sponge driving mechanism (42), and a cleaning fluid rinsing mechanism (43). The second working area (41) has a second inlet (411) and a second cavity (412). The infrared window (300) delivered by the first working module (3) enters the second cavity (412) and is received by the belt conveyor unit (U) of the second working module (4). The nano sponge drive mechanism (42) can move up and down in the vertical direction (V) to contact or detach from the front of the infrared window (300), and can drive the nano sponge (NS) to translate in the first horizontal direction (D1) and drive the nano sponge (NS) to rotate around the second horizontal direction (D2) to wipe the front of the infrared window (300). The cleaning fluid rinsing mechanism (43) is capable of rinsing the back of the infrared window (300) with cleaning fluid.
8. The infrared window cleaning system according to claim 2, characterized in that, The third working module (5) also includes a third working area (51), two supports (52), two rotating units (53), a nano-sponge driving unit (54), and a cleaning fluid rinsing unit (55): The third working area (51) has a third inlet (511) and a third cavity (512). The infrared window (300) delivered by the second working module (4) enters the third cavity (512) and is received by the belt conveyor unit (U) of the third working module (5). One bracket (52) fixes and supports the rotary motor (U4) of the conveyor unit (U) of the third working module (5) and connects the corresponding connecting shaft (U2) to the opposite end of the rotary motor (U4) with bearings to support the connecting shaft (U2) together with the rotary motor (U4). Another bracket (52) is connected to the two ends of the connecting shaft (U2) corresponding to the driven pulley of the conveyor unit (U) of the third working module (5) with bearings to support the connecting shaft (U2). Two rotating units (53) are respectively connected to two brackets (52) to rotate the two brackets (52) together with the belt conveyor unit (U) of the third working module (5) by 180 degrees around the first horizontal direction (D1) so that the front and back of the infrared window (300) held by the belt conveyor unit (U) of the third working module (5) are reversed. The nano-sponge driving unit (54) can reciprocate in the second horizontal direction (D2) to drive the nano-sponge (NS) to be inserted into the loop belt (U3) after the front and back sides of the infrared window (300) are reversed; it can drive the nano-sponge (NS) to rise and fall in the vertical direction (V) to contact or detach from the back side of the infrared window (300); it can drive the nano-sponge (NS) to translate in the first horizontal direction (D1) and drive the nano-sponge (NS) to rotate around the second horizontal direction (D2) to wipe the back side of the infrared window (300); The cleaning fluid rinsing mechanism (43) is capable of rinsing the front side of the infrared window (300) with cleaning fluid; The two rotating units (53) can rotate the two supports (52) together with the belt conveyor unit (U) of the third working module (5) in the opposite direction by 180 degrees around the first horizontal direction (D1) so that the belt conveyor unit (U) of the third working module (5) is reset.
9. The infrared window cleaning system according to claim 2, characterized in that, The fourth working module (6) also includes a fourth working area (61) and multiple nitrogen drying units (62); The fourth working area (61) has a fourth inlet (611), a fourth cavity (612) and an outlet (613). The fourth inlet (611) allows the infrared window (300) conveyed by the third working module (5) to enter the fourth cavity (612) and be received by the belt conveyor unit (U) of the fourth working module (6). The outlet (613) allows the infrared window (300) conveyed from the fourth working module (6) to exit from the fourth cavity (612) and be received by the downstream belt conveyor mechanism (7). Multiple nitrogen drying units (62) are distributed on the upper and lower sides of the infrared window (300) held by the fourth working module (6) to dry the front and back of the infrared window (300) held by the fourth working module (6) with nitrogen.
10. The infrared window cleaning system according to claim 9, characterized in that, In the first working module (3), the soaking solution (500) is a 0.005-0.02wt% perfluoropolyether cleaning solution, accompanied by 1MHz megahertz, the soaking temperature is controlled at 30-50℃, and the soaking time is 5-10min; In the second working module (4), the nano-sponge (NS) initially contacts the infrared window (300) at 200 rpm, gradually increasing to 300 rpm within 10 seconds, with a pressure of 0.1 N / cm. 2 The cleaning fluid used is perfluoropolyether cleaning fluid, with ultrasonic rinsing at 80kHz and a power density of 8W / cm³. 2 Cavitation bubble diameter ≤10μm, rinsing time is 1-3min; In the third working module (5), the nano-sponge (NS) initially contacts the infrared window (300) at 200 rpm, gradually increasing to 300 rpm within 10 seconds, with a pressure of 0.1 N / cm. 2 The cleaning fluid used is perfluoropolyether cleaning fluid, ultrasonic rinsing at 80kHz, power density of 8W / cm², cavitation bubble diameter ≤10μm, and rinsing time of 1-3min; In the fourth working module (6), the nitrogen drying time is 1-3 min.