Dry contact lens detection method and system

Abstract

The invention relates to the technical field of automatic production of contact lenses, in particular to a dry contact lens detection method and system. The lens cleaning stations, the lens positioning mechanism, the multiple detection stations, the discharging mechanism and the carrying table cleaning station are arranged on the side portion of the rotating disc mechanism in the rotating direction of the rotating disc mechanism. A feeding work station is correspondingly arranged at each lens cleaning work station; according to the dry contact lens detection method and system, an automatic technological process and full-process closed-loop control are adopted, manual interference is reduced, the detection precision is improved, foreign matter interference is avoided, and efficient and high-precision full detection of the dry contact lens is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of contact lens automation production, in particular to a contact lens dry sheet detection method and system. BACKGROUND

[0002] In the production process of contact lenses, the demolded contact lenses may have defects such as material shortage, bubbles, scratches, etc., and defect detection is required before the subsequent production process. The products with defects are marked after detection.

[0003] Although there are some automatic dry sheet detection technologies at present, there are still the following defects: the overall detection efficiency is bottlenecked, the manual sampling efficiency is low (≤800 pieces / hour), and 100% full detection cannot be achieved; the detection precision is insufficient, single light source imaging is easy to miss edge defects, bubbles and other defects (miss detection rate >5%); foreign matter interference is serious: the residual dust particles of traditional brush dust removal are >50μm, which leads to an increase in misjudgment rate; the equipment compatibility is poor: the linear layout process is delayed, and the overall equipment efficiency (OEE) is <70%.

[0004] Therefore, in order to meet market demand, it is urgent to provide a solution. SUMMARY

[0005] The purpose of the present application is to provide a contact lens dry sheet detection method and system, which realizes full automation process flow, full-process closed-loop control, reduces manual interference, improves detection precision, avoids foreign matter interference, and realizes efficient and high-precision full detection of contact lens dry sheets.

[0006] To achieve the above purpose, the present application provides the following technical scheme.

[0007] The present application provides a contact lens dry sheet detection method, which comprises a rotating disc mechanism for driving a plurality of lens carriages to move, a plurality of lens cleaning workstations arranged along the rotating direction of the rotating disc mechanism and on the side of the rotating disc mechanism, a lens positioning mechanism, a plurality of detection workstations, a discharging mechanism, and a carriage cleaning workstation; each lens cleaning workstation is provided with a feeding workstation; the specific steps are as follows:

[0008] S1. The feeding workstation carries the lens to be detected to the empty lens carriage to complete feeding;

[0009] S2. The lens cleaning workstation cleans the lens to be detected on the lens carriage;

[0010] S3. The rotating disc mechanism drives the lens carriage carrying the cleaned lens to move to the lens positioning mechanism, and the lens positioning mechanism pushes the cleaned lens on the lens carriage to arrange and position the lens to be detected;

[0011] S4. The carousel mechanism drives the lens carrier carrying the arranged lenses to the multiple detection station, and the multiple detection station visually inspects the arranged lenses on the lens carrier to complete lens detection;

[0012] S5. The carousel mechanism drives the lens carrier carrying the detected lenses to the unloading mechanism, and the unloading mechanism carries the qualified lenses out of the lens carrier to complete unloading;

[0013] S6. The carousel mechanism drives the lens carrier after unloading to the carrier cleaning station, and the carrier cleaning station removes the unqualified lenses and floating dust on the lens carrier;

[0014] S7. The carousel mechanism drives the cleaned lens carrier to the lens cleaning station, and the loading station carries the lenses to be detected to the lens carrier to complete loading and enter the next operation cycle.

[0015] Further, the loading station comprises a loading carrying mechanism and a loading detection mechanism; in S1, further comprising:

[0016] S11. The loading carrying mechanism picks up the lenses to be detected from the storage;

[0017] S12. The loading carrying mechanism carries the lenses to the lens carrier after the lenses pass through the loading detection mechanism.

[0018] Further, the lens cleaning station comprises a dust removal mechanism and a lens flipping mechanism; in S2, further comprising:

[0019] S21. The dust removal mechanism electrostatically removes one end face of the lenses on the lens carrier;

[0020] S22. The lens flipping mechanism adsorbs and flips the lenses on the lens carrier after one face is removed to enable the dust removal mechanism to electrostatically remove the other end face of the lenses;

[0021] S23. The lens flipping mechanism returns the adsorbed lenses to the lens carrier to complete resetting.

[0022] Further, the lens flipping mechanism comprises a mirror flipping lifting device, a flipping device drivingly connected to the execution end of the mirror flipping lifting device, and a flipping frame drivingly connected to the execution end of the flipping device; the flipping frame is provided with a plurality of adsorbing suction cups;

[0023] When flipping, the mirror flipping lifting device and the flipping device drive the flipping frame to move, and the flipping frame adsorbs and flips the lenses to enable the dust removal mechanism to remove dust from the flipped lenses.

[0024] Further, the lens positioning mechanism comprises a positioning lifting driving device, a positioning support drivenly connected to the execution end of the positioning lifting driving device, a positioning clamping driving device installed on the positioning support, and a positioning mold drivenly connected to the execution end of the positioning clamping driving device.

[0025] The rotating disc mechanism moves the lens carrier carrying the cleaned lens to the positioning lifting driving device, the positioning lifting driving device drives the positioning support to move so that the positioning mold abuts against the lens carrier, and the positioning clamping driving device drives the positioning mold to move so as to push and position the lens.

[0026] Further, the multiple detection work station comprises multiple camera driving devices, each of which is provided with a light supplement mechanism at the corresponding position, and the execution end of each camera driving device is drivenly connected to a detection camera; in S4, further comprising:

[0027] S41. The rotating disc mechanism moves the lens carrier carrying the arranged lens to the position between the camera driving device and the light supplement mechanism;

[0028] S42. The light supplement mechanism supplements light for the lens on the lens carrier, and the camera driving device drives the detection camera to move to complete lens detection.

[0029] Further, the carrier cleaning work station comprises a floating dust cleaning mechanism and a vibration cleaning mechanism; in S6, further comprising:

[0030] S61. The rotating disc mechanism moves the lens carrier after unloading to the floating dust cleaning mechanism, and the floating dust cleaning mechanism removes the unqualified lens and large-particle impurities and dust on the lens carrier;

[0031] S62. The rotating disc mechanism moves the empty lens carrier to the vibration cleaning mechanism, and the vibration cleaning mechanism removes the attached fine dust on the lens carrier by high-frequency vibration.

[0032] Further, the floating dust cleaning mechanism comprises a brush body displacement device, a brush body lifting device drivenly connected to the execution end of the brush body displacement device, and a cleaning brush drivenly connected to the execution end of the brush body lifting device;

[0033] The rotating disc mechanism moves the lens carrier after unloading to the brush body displacement device, and the brush body displacement device and the brush body lifting device drive the cleaning brush to abut against and sweep across the lens carrier to remove the unqualified lens and floating dust on the lens carrier.

[0034] Further, the vibration cleaning mechanism comprises a vibration driving device and a dry ultrasonic dust remover; the rotating disc mechanism moves the empty lens carrier to pass through the vibration driving device, and the vibration driving device drives the dry ultrasonic dust remover to sweep across the surface of the lens carrier to remove the attached fine dust.

[0035] The application also provides a contact lens dry piece detection system for implementing the contact lens dry piece detection method, which comprises a rotating disc mechanism for driving a plurality of lens carriages to move, a plurality of lens cleaning stations arranged along the rotating direction of the rotating disc mechanism and on the side of the rotating disc mechanism, a lens positioning mechanism, a plurality of detection stations, a feeding mechanism and a carriage cleaning station; each lens cleaning station is provided with a feeding station.

[0036] Compared with the prior art, the application has the following advantages:

[0037] In actual use, the rotating disc mechanism drives the lens carriages to move and circulate in a circular manner, reducing the occupied space and the overall volume of the equipment and improving the detection efficiency; the lens cleaning stations clean the lenses to be detected, improving the detection quality of the dry lens and avoiding the influence of dust on the detection results; the lens positioning mechanism arranges the lenses on the lens carriages, avoiding the change of the lens placement position during the lens cleaning process, further reducing the influencing factors in the lens detection operation and improving the lens detection accuracy; the carriage cleaning station cleans the empty lens carriages, avoiding the influence of dust on the lenses to be fed, reducing the interference of dust on the lenses and improving the lens detection accuracy; overall, the efficiency of the contact lens dry piece detection is improved, the accuracy of the quality detection operation is improved, and the yield of the contact lens finished product is improved. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a schematic diagram of the planar structure of the application;

[0039] Figure 2 It is a schematic diagram of the planar structure of the application from another perspective;

[0040] Figure 3 It is a schematic diagram of the three-dimensional structure of the application;

[0041] Figure 4 It is a schematic diagram of the three-dimensional structure of the lens overturning mechanism in the application;

[0042] Figure 5 It is a schematic diagram of the planar structure of the lens positioning mechanism in the application;

[0043] Figure 6 It is a schematic diagram of the three-dimensional structure of the multiple detection stations in the application;

[0044] Figure 7 It is a schematic diagram of the three-dimensional structure of the cleaning station in the application. DETAILED DESCRIPTION

[0045] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0046] Reference Figures 1-7 As shown in the drawings, the present application provides a contact lens dry film detection method, which comprises a rotating disc mechanism 200 for driving a plurality of lens carriages 800 to move, a plurality of lens cleaning stations 500 arranged along the rotating direction of the rotating disc mechanism 200 and on the side of the rotating disc mechanism 200, a lens positioning mechanism 400, a plurality of detection stations 300, a discharging mechanism 600, and a carriage cleaning station 700; each of the lens cleaning stations 500 is provided with a feeding station 100 corresponding thereto; the specific steps are as follows:

[0047] S1. The feeding station 100 carries the lens to be detected to the empty lens carriage 800 to complete the feeding;

[0048] S2. The lens cleaning station 500 performs dust cleaning on the lens to be detected on the lens carriage 800;

[0049] S3. The rotating disc mechanism 200 drives the lens carriage 800 carrying the cleaned lens to move to the lens positioning mechanism 400, and the lens positioning mechanism 400 pushes the cleaned lens on the lens carriage 800 to arrange and position the lens to be detected;

[0050] S4. The rotating disc mechanism 200 drives the lens carriage 800 carrying the arranged lens to move to the plurality of detection stations 300, and the plurality of detection stations 300 perform visual inspection on the arranged lens on the lens carriage 800 to complete the lens detection;

[0051] S5. The rotating disc mechanism 200 drives the lens carriage 800 carrying the detected lens to move to the discharging mechanism 600, and the discharging mechanism 600 carries the qualified lens out of the lens carriage 800 to complete the discharging;

[0052] S6. The rotating disc mechanism 200 drives the lens carriage 800 after the discharging to move to the carriage cleaning station 700, and the carriage cleaning station 700 removes the unqualified lens and floating dust on the lens carriage 800;

[0053] S7. The rotating disc mechanism 200 drives the cleaned lens carriage 800 to move to the lens cleaning station 500, and the feeding station 100 carries the lens to be detected to the lens carriage 800 to complete the feeding, and enters the next working cycle.

[0054] Specifically, the rotating disc mechanism 200 can adopt a circular turntable controlled by a motor, and the discharging mechanism 600 can adopt a four-axis robot equipped with a flexible suction head mounted at the tail end to complete the discharging and carrying of the lens.

[0055] The contact lens dry sheet detection method, the rotating disc mechanism 200 drives the lens carrier 800 to realize the circumferential rapid movement and turnover of the lens, reduces the equipment occupied space, reduces the overall volume of the equipment, and improves the detection efficiency; the lens cleaning station 500 cleans the lens to be detected to improve the detection quality of the dry lens, and avoids the influence of dust on the detection result; the lens positioning mechanism 400 arranges the lens on the lens carrier 800, avoids the change of the lens placement position in the lens cleaning process, further reduces the influencing factors in the lens detection operation, and improves the lens detection accuracy; the carrier cleaning station 700 cleans the lens carrier 800 that has completed the unloading, avoids the influence of dust on the lens to be loaded, reduces the interference of dust on the lens, and improves the lens detection accuracy; overall, the efficiency of the contact lens dry sheet detection is improved, the accuracy of the quality detection operation is improved, and the yield of the contact lens finished product is improved.

[0056] The contact lens dry sheet detection method, in specific application, full-automatic process flow, full-flow closed-loop control, reduces manual interference, improves detection precision, avoids foreign matter interference, and realizes efficient and high-precision full detection of contact lens dry sheets.

[0057] In the embodiment, the feeding station 100 includes a feeding carrying mechanism 110 and a feeding detection mechanism 120; in S1, further includes:

[0058] S11. The feeding carrying mechanism 110 picks up the lens to be detected from the storage place;

[0059] S12. The feeding carrying mechanism 110 carries the lens to the lens carrier 800 after the lens passes through the feeding detection mechanism 120.

[0060] Specifically, the feeding carrying mechanism 110 can adopt a four-axis robot equipped with a flexible suction head installed at the tail end to realize the carrying of the lens; the feeding detection mechanism 120 can adopt a visual inspection camera to obtain the image of the lens to complete the detection; the visual inspection is integrated in the feeding stage to mark, detect or count the product, improve the automation and digitization of the feeding action, and the lens can also be pre-inspected to improve the lens detection efficiency.

[0061] In the embodiment, the feeding detection mechanism 120 is further provided with a feeding light supplementing device 121 to supplement light for the lens carried by the feeding carrying mechanism 110. Specifically, the feeding light supplementing device 121 can adopt a light supplementing lamp strip, which is convenient for supplementing light for the lower end surface of the lens after being adsorbed by the feeding carrying mechanism 110, improves the acquisition quality of the visual inspection image, and improves the detection efficiency.

[0062] In the embodiment, the lens cleaning station 500 includes a dust removal mechanism 510 and a lens turnover mechanism 520; in S2, further includes:

[0063] S21. The dust removal mechanism 510 performs electrostatic dust removal on one end face of the lens on the lens carrier 800;

[0064] S22. The lens flipping mechanism 520 adsorbs and flips the lens on the lens carrier 800 after one face is dusted to enable the dust removal mechanism 510 to perform electrostatic dust removal on the other end face of the lens;

[0065] S23. The lens flipping mechanism 520 places the adsorbed lens back on the lens carrier 800 to complete resetting.

[0066] Specifically, the dust removal mechanism 510 can adopt an electrostatic dust removal machine; after the dust removal mechanism 510 performs electrostatic dust removal on the lens on the lens carrier, the lens flipping mechanism 520 adsorbs and flips the lens, and the dust removal mechanism 510 performs dust removal on the other face of the lens again, so that both end faces of the lens can be electrostatically dusted, avoiding the influence of dust on the lens on the detection result.

[0067] In this embodiment, further, the lens flipping mechanism 520 includes a lens flipping lifting device 521, a flipping device 522 drivingly connected to the execution end of the lens flipping lifting device 521, and a flipping frame 523 drivingly connected to the execution end of the flipping device 522; the flipping frame 523 is provided with a plurality of adsorption suction cups; during flipping, the lens flipping lifting device 521 and the flipping device 522 drive the flipping frame 523 to move, and the flipping frame 523 adsorbs and flips the lens to enable the dust removal mechanism 510 to perform dust removal on the flipped lens.

[0068] Specifically, the lens flipping lifting device 521 can adopt a lifting motor assembly, and the flipping device 522 can adopt a rotary air cylinder; the lens flipping lifting device 521 and the flipping device 522 cooperatively drive the flipping frame 523 to move to the lens carrier 800, adsorb and flip the lens, wait for the dust removal mechanism 510 to perform dust removal, and then flip and place the lens back on the lens carrier 800; by additionally providing the lens flipping mechanism 520, the other end face of the lens that cannot be dusted in the conventional dust removal mode can also be dusted, further improving the accuracy and precision of detection.

[0069] In this embodiment, the lens positioning mechanism 400 includes a positioning lifting driving device 410, a positioning support 420 drivingly connected to the execution end of the positioning lifting driving device 410, a positioning clamping driving device 430 mounted on the positioning support 420, and a positioning mold 440 drivingly connected to the execution end of the positioning clamping driving device 430; the rotating disc mechanism 200 moves the lens carrier 800 carrying the cleaned lens to the positioning lifting driving device 410, the positioning lifting driving device 410 drives the positioning support 420 to move to enable the positioning mold 440 to abut against the lens carrier 800, and the positioning clamping driving device 430 drives the positioning mold 440 to move to push and position the lens.

[0070] Specifically, the positioning lifting driving device 410 can adopt a linear motor module, and the positioning clamping driving device 430 can adopt an electric claw cylinder; during positioning, the positioning mold 440 abuts against the lens carrier 800, so that the lens can be prevented from flying out during positioning and arrangement, thereby improving the success rate of positioning; a unified position positioning is provided for detection of the lens, and the efficiency and accuracy of detection operation are further improved.

[0071] In this embodiment, the positioning mold 440 is a set of positioning strips, and the positioning strips are provided with lens grooves 441 matched with the shape of the lens; specifically, the positioning mold 440 is detachably mounted at the execution end of the positioning clamping driving device 430, so that the positioning mold 440 can be quickly replaced to improve the adaptability and expansibility of the device to various lenses.

[0072] In this embodiment, the multiple detection workstations 300 include a plurality of camera driving devices 310, and a light supplementing mechanism 330 is arranged at each camera driving device 310, and the execution end of each camera driving device 310 is drivingly connected to a detection camera 320; in S4, the method further includes:

[0073] S41. The turntable mechanism 200 moves the lens carrier 800 carrying the arranged lens to between the camera driving device 310 and the light supplementing mechanism 330;

[0074] S42. The light supplementing mechanism 330 supplements light for the lens on the lens carrier 800, and the camera driving device 310 drives the detection camera 320 to move to complete detection of the lens.

[0075] Specifically, the multiple detection workstations 300 can adopt three groups of cameras for detection, and three groups of light supplementing mechanisms 330 supplement light of different light intensities, so that the light supplementing mechanisms 330 can define bright and dark scenes, and ensure that the detection camera 320 can capture multiple types of defects such as gaps, bubbles, scratches and foreign matters; the camera driving device 310 can drive the detection camera 320 to reciprocally scan, and multiple visual detections are performed, so as to improve the accuracy and efficiency of lens detection.

[0076] Specifically, the turntable mechanism 200 moves the lens carrier 800 carrying the detected lens to the unloading mechanism 600, and the lens is carried out of the lens carrier by the unloading mechanism 600 to complete unloading.

[0077] In this embodiment, the carrier cleaning workstation 700 includes a floating dust cleaning mechanism 710 and a vibration cleaning mechanism 720; in S6, the method further includes:

[0078] S61. The turntable mechanism 200 moves the lens carrier 800 after unloading to the floating dust cleaning mechanism 710, and the floating dust cleaning mechanism 710 removes unqualified lenses and large-particle impurities and dust on the lens carrier 800;

[0079] S62. The turntable mechanism 200 moves the empty lens carrier 800 to the vibration cleaning mechanism 720, and the vibration cleaning mechanism 720 removes the fine dust attached to the lens carrier 800 by high-frequency vibration.

[0080] Specifically, the carrier cleaning station 700 performs double cleaning on the discharged lens carrier 800 to make the surface of the lens carrier 800 clean, avoid damage to the lens caused by sundries and dust, and thus improve the overall yield of the product.

[0081] In this embodiment, the floating dust cleaning mechanism 710 includes a brush body displacement device 711, a brush body lifting device 712 drivingly connected to the execution end of the brush body displacement device 711, and a cleaning brush 713 drivingly connected to the execution end of the brush body lifting device 712; the turntable mechanism 200 moves the empty lens carrier 800 to the brush body displacement device 711, and the brush body displacement device 711 and the brush body lifting device 712 drive the cleaning brush 713 to abut and sweep the lens carrier 800 to remove the unqualified lenses and floating dust on the lens carrier 800.

[0082] Specifically, the brush body displacement device 711 can adopt a rodless cylinder, and the brush body lifting device 712 can adopt a lifting electric cylinder; under the driving of the brush body displacement device 711 and the brush body lifting device 712, the cleaning brush 713 sweeps out the unqualified lenses, large-particle sundries, and floating dust above the lens carrier 800 to avoid damaging the lenses.

[0083] In this embodiment, the vibration cleaning mechanism 720 includes a vibration driving device 722 and a dry ultrasonic dust remover 721; the turntable mechanism 200 moves the empty lens carrier 800 to pass through the vibration driving device 722, and the vibration driving device 722 drives the dry ultrasonic dust remover 721 to sweep the surface of the lens carrier 800 to remove the fine dust attached thereto.

[0084] Specifically, the vibration driving device 722 can adopt a linear module, the dry ultrasonic dust remover 721 is hoisted and installed at the execution end of the vibration driving device 722, and the dry ultrasonic dust remover 721 is as close as possible to the lens carrier 800 so that the execution end of the dry ultrasonic dust remover 721 can act on the lens carrier 800.

[0085] The present application also provides a contact lens dry piece detection system, which includes a turntable mechanism 200 driving a plurality of lens carriers 800 to move, a plurality of lens cleaning stations 500 arranged along the rotation direction of the turntable mechanism 200 and at the side of the turntable mechanism 200, a lens positioning mechanism 400, a plurality of detection stations 300, a discharging mechanism 600, and a carrier cleaning station 700; each lens cleaning station 500 is correspondingly provided with a feeding station 100.

[0086] The method and system realize technical breakthrough through the cooperative operation of multiple core modules;

[0087] The four-axis robot feeding station (capacity breakthrough module) constructs a high-speed feeding system; three four-axis robots work cooperatively (repeated positioning accuracy ±0.005 mm), one of which is responsible for unloading, and the other two are responsible for feeding; the robot end is integrated with a flexible suction head (force control sensitivity ±0.1 N) that can adapt to different base curves (8.4-8.8 mm) for lens suction.

[0088] The rotating disc type detection work station (precision guarantee module) is built with a multi-station rotating disc layout; the rotating disc is configured with 12 lens carriages 800 stations, the rotating speed is adjustable (10-30 rpm), and the positioning accuracy is ±0.01°; the detection work station 300 is integrated with three groups of movable detection bright-dark field cameras, the bright field detection uses a 5 million pixel high-speed industrial camera (frame rate 23 fps) + coaxial light source to detect surface scratches and foreign matter; the dark field detection uses a 5 million pixel linear array camera (resolution 5 MP) + low-angle ring light to capture edge gaps and bubbles;

[0089] The carriage cleaning work station 700 is built with a composite dust removal system; the vibration cleaning mechanism (720) removes the particles attached to the lens detection site surface by high-frequency vibration (removal rate ≥99.5%); the floating dust cleaning mechanism 710 uses a cleaning brush for fast foreign matter removal;

[0090] The overall equipment realizes the following breakthroughs:

[0091] Efficiency leap, capacity reaches 4200 pieces / hour (5 times higher than traditional), equipment comprehensive efficiency (OEE) 96.3%;

[0092] Rotating disc type layout reduces the waiting time between processes, and the production cycle is shortened to 0.85 seconds / piece.

[0093] Detection accuracy revolution, bright-dark field cross imaging makes the minimum size of defect recognition reach 0.008 mm 2 (equivalent to the cross section of human hair); intelligent algorithm over-checking rate 1.2%, missing rate 0.7%, 60% higher than the industry standard.

[0094] Cleanliness guarantee, composite dust removal makes the particle concentration of the workbench ≤100 / m 3 (ISO Class 4), foreign matter misjudgment rate decreased by 90%.

[0095] Flexible production, supports full-specification lens rapid changeover (changeover time <5 minutes) with a diameter of 13.8-14.5 mm.

[0096] The specific embodiments described herein are merely illustrative of the spirit of the present application. Various modifications or changes in addition or substitution to the described specific embodiments can be made by those skilled in the art without departing from the spirit of the present application defined by the scope of the claims.

Claims

1. A method of contact lens dry case detection, the method comprising: The application relates to a lens detection device, which comprises a rotating disc mechanism (200) for driving a plurality of lens carriers (800) to move, a plurality of lens cleaning stations (500) arranged along the rotating direction of the rotating disc mechanism (200) and at the side of the rotating disc mechanism (200), a lens positioning mechanism (400), a plurality of detection stations (300), a feeding mechanism (600) and a carrier cleaning station (700); each lens cleaning station (500) is provided with a feeding station (100) correspondingly; the specific steps are as follows: S1. The feeding station (100) carries the lens to be detected to the lens carrier (800) to complete feeding; S2. The lens cleaning station (500) carries out dust cleaning on the lens to be detected on the lens carrier (800); S3. The rotating disc mechanism (200) drives the lens carrier (800) carrying the cleaned lens to move to the lens positioning mechanism (400), and the lens positioning mechanism (400) pushes the cleaned lens on the lens carrier (800) to arrange and position the lens to be detected; S4. The rotating disc mechanism (200) drives the lens carrier (800) carrying the arranged lens to move to the detection station (300), and the detection station (300) carries out visual inspection on the arranged lens on the lens carrier (800) to complete lens detection; S5. The rotating disc mechanism (200) drives the lens carrier (800) carrying the detected lens to move to the feeding mechanism (600), and the feeding mechanism (600) carries the qualified lens out of the lens carrier (800) to complete feeding; S6. The rotating disc mechanism (200) drives the lens carrier (800) after feeding to move to the carrier cleaning station (700), and the carrier cleaning station (700) removes the unqualified lens and floating dust on the lens carrier (800); S7. The rotating disc mechanism (200) drives the cleaned lens carrier (800) to move to the lens cleaning station (500), and the feeding station (100) carries the lens to be detected to the lens carrier (800) to complete feeding, and enters the next operation cycle.

2. The method of claim 1, wherein the step of detecting the presence of the contact lens is performed by detecting the presence of the contact lens on the contact lens dry plate. The feeding station (100) comprises a feeding carrying mechanism (110) and a feeding detection mechanism (120); in S1, further comprising: S11. The feeding carrying mechanism (110) picks up the lens to be detected from a storage place; S12. The feeding carrying mechanism (110) carries the lens to the lens carrier (800) after the lens passes through the feeding detection mechanism (120).

3. The method of claim 1, wherein the step of detecting the presence of the contact lens is performed by detecting the presence of a contact lens on the eye of the user. The lens cleaning station (500) comprises a dust removal mechanism (510) and a lens overturning mechanism (520); in S2, further comprising: S21. The dust removal mechanism (510) carries out electrostatic dust removal on one end face of the lens on the lens carrier (800); S22. The lens overturning mechanism (520) adsorbs and overturns the lens on the lens carrier (800) after one face is removed to enable the dust removal mechanism (510) to carry out electrostatic dust removal on the other end face of the lens; S23. The lens overturning mechanism (520) places the adsorbed lens back on the lens carrier (800) to complete resetting.

4. The method of claim 1, wherein the step of detecting the presence of the contact lens is performed by detecting the presence of a contact lens on the eye of the user. The lens flipping mechanism (520) comprises a lens flipping lifting device (521), a flipping device (522) drivenly connected to the lens flipping lifting device (521), and a flipping frame (523) drivenly connected to the flipping device (522); a plurality of adsorbing suction cups are arranged on the flipping frame (523); During flipping, the lens flipping lifting device (521) and the flipping device (522) drive the flipping frame (523) to move, and the flipping frame (523) adsorbs and flips the lens so that the dust removal mechanism (510) can remove dust from the flipped lens.

5. The method of claim 1, wherein the step of detecting the presence of the contact lens is performed by detecting the presence of a contact lens on the eye of the user. The lens positioning mechanism (400) comprises a positioning lifting driving device (410), a positioning support (420) drivenly connected to the positioning lifting driving device (410), a positioning clamping driving device (430) mounted on the positioning support (420), and a positioning mold (440) drivenly connected to the positioning clamping driving device (430). The rotating disc mechanism (200) moves the lens carrier (800) carrying the cleaned lens to the positioning lifting driving device (410), the positioning lifting driving device (410) drives the positioning support (420) to move so that the positioning mold (440) abuts against the lens carrier (800), and the positioning clamping driving device (430) drives the positioning mold (440) to move so as to push and position the lens.

6. The method of claim 1, wherein the step of detecting the presence of the contact lens is performed by detecting the presence of a contact lens on the eye of the user. The multiple detection work station (300) comprises a plurality of camera driving devices (310), a light supplementing mechanism (330) is arranged corresponding to each camera driving device (310), and a detection camera (320) is drivenly connected to the execution end of each camera driving device (310); In S4, further comprising: S41. The rotating disc mechanism (200) moves the lens carrier (800) carrying the arranged lens to the space between the camera driving device (310) and the light supplementing mechanism (330); S42. The light supplementing mechanism (330) supplements light for the lens on the lens carrier (800), and the camera driving device (310) drives the detection camera (320) to move to complete lens detection.

7. The method of claim 1, wherein the step of detecting the presence of the contact lens is performed by detecting the presence of a contact lens on the eye of the user. The carrier cleaning work station (700) comprises a floating dust cleaning mechanism (710) and a vibration cleaning mechanism (720); in S6, further comprising: S61. The rotating disc mechanism (200) moves the lens carrier (800) having been discharged to the floating dust cleaning mechanism (710), and the floating dust cleaning mechanism (710) removes the unqualified lens and large-particle impurities and dust on the lens carrier (800); S62. The rotating disc mechanism (200) moves the empty lens carrier (800) to the vibration cleaning mechanism (720), and the vibration cleaning mechanism (720) removes fine dust attached to the lens carrier (800) by high-frequency vibration.

8. The method of claim 7, wherein the step of detecting the presence of the contact lens is performed by detecting the presence of the contact lens on the contact lens dry plate. The floating dust cleaning mechanism (710) comprises a brush body displacement device (711), a brush body lifting device (712) drivenly connected to the brush body displacement device (711), and a cleaning brush (713) drivenly connected to the brush body lifting device (712); The rotating disc mechanism (200) moves the lens carrier (800) with the lens unloaded to the brush body displacement device (711), the brush body displacement device (711) and the brush body lifting device (712) drive the cleaning brush (713) to abut and sweep the lens carrier (800) to remove the unqualified lenses and floating dust on the lens carrier (800).

9. The method of claim 2, wherein the step of detecting the presence of the contact lens is performed by detecting the presence of a contact lens on the eye of the user. The vibration cleaning mechanism (720) comprises a vibration driving device (722) and a dry ultrasonic dust remover (721). The rotating disc mechanism (200) moves the lens carrier (800) with the lens unloaded to pass the vibration driving device (722), the vibration driving device (722) drives the dry ultrasonic dust remover (721) to sweep the surface of the lens carrier (800) to remove the fine dust attached.

10. A contact lens dry lot detection system, characterized by, A contact lens dry film detection method for implementing any one of the above claims 1-9, comprising a rotating disc mechanism (200) for driving a plurality of lens carriers (800) to move, a plurality of lens cleaning stations (500) arranged on the side of the rotating disc mechanism (200) along the rotating direction of the rotating disc mechanism (200), a lens positioning mechanism (400), a plurality of detection stations (300), a feeding mechanism (600), and a carrier cleaning station (700); each lens cleaning station (500) is correspondingly provided with a feeding station (100).

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