A method and system for quality inspection of contact lens outer packaging seals

Abstract

This invention relates to the field of automated contact lens production technology, specifically to a method and system for inspecting the sealing quality of contact lens packaging. The method employs a material handling unit to place the packaged finished products to be inspected into a turntable unit, which then rotates the packaged products. When the packaged finished products enter the cup inspection mechanism, the cup inspection mechanism inspects the PP cup of the packaged finished products. When the packaged finished products enter the sealing inspection mechanism, the sealing inspection mechanism inspects the sealing film and / or the seal of the packaged finished products. When the packaged finished products enter the unloading area, multiple unloading units sort and remove the packaged finished products from the turntable unit. This method and system for inspecting the sealing quality of contact lens packaging can realize automated batch inspection operations. The cup inspection mechanism and the sealing inspection mechanism detect various defects in the packaged finished products, replacing existing manual inspection, improving inspection efficiency, and thus improving product quality.

Description

Technical Field

[0001] This invention relates to the field of automated contact lens production technology, specifically to a method and system for inspecting the quality of contact lens packaging seals. Background Technology

[0002] The finished PP cup packaging may have many defects, such as scratches on the packaging surface, leakage, foreign objects, air bubbles, empty cups, broken or damaged lettering, etc. Current technology for inspecting the appearance of packaged optical contact lenses typically relies on manual inspection, which is time-consuming, labor-intensive, inefficient, and costly.

[0003] Existing automated testing equipment has technological limitations, specifically in that it only tests a limited range of items, has a complex structural design, and occupies a large amount of production space. Furthermore, there is currently a lack of automated testing equipment for finished contact lens packaging products in China, requiring manual inspection as a necessary step. This issue is one that industry professionals urgently need to address. Summary of the Invention

[0004] The purpose of this invention is to provide a method and system for inspecting the quality of contact lens packaging seals that requires little space, enables automated batch visual inspection, improves inspection efficiency, and enhances product quality.

[0005] To achieve the above objectives, the present invention provides the following technical solution;

[0006] This invention provides a method for inspecting the sealing quality of contact lens packaging, comprising a turntable unit for operating the sealed finished product, a material handling unit, a cup inspection mechanism, a sealing inspection mechanism, and multiple unloading units arranged along the rotation path of the turntable unit; the specific steps are as follows:

[0007] S10. The material handling unit places the packaged finished product to be inspected onto the turntable unit;

[0008] S20. The turntable unit carries the packaged finished product to be inspected into the cup inspection mechanism;

[0009] S30. The cup body inspection mechanism inspects the PP cups on the lower end face of the sealed finished product to be inspected; the turntable unit drives the inspected sealed finished product into the sealing inspection mechanism;

[0010] S40. The sealing inspection unit inspects the sealing film and / or seal on the upper surface of the finished package to be inspected; the turntable unit drives the inspected finished package into the unloading area composed of multiple unloading units;

[0011] S50. In the unloading area, multiple unloading units sort and move the packaged finished products out of the turntable unit to complete the inspection operation.

[0012] Furthermore, the material handling unit is also equipped with a feeding unit, which includes a material handling mechanism, a transfer platform, and a material sorting mechanism.

[0013] Step S10 also includes:

[0014] S11. The material handling mechanism moves the sealed finished products to be inspected to the transfer platform;

[0015] S12. The sorting mechanism sorts the sealed finished products at the transfer station to unify the placement of the sealed finished products. The picking unit then transports the sorted sealed finished products to the turntable unit.

[0016] Furthermore, a rotary drive device is provided on the lower end face of the transfer platform, and a transfer cavity is installed on the upper end face of the transfer platform. Each transfer cavity is provided with several clearance grooves. The rotary drive device is used to drive the transfer platform to rotate.

[0017] The material handling mechanism includes a pushing mechanism and a material lifting mechanism that drives the pushing mechanism to rise and fall; in step S12, it also includes:

[0018] S121. The push-bag mechanism opens the execution end, and the material lifting mechanism drives the push-bag mechanism to the sealed finished product position;

[0019] S122. After passing through the clearance groove, the execution end of the pusher mechanism pushes the sealed finished product against the inner wall of the transfer material cavity to complete the material preparation.

[0020] Furthermore, the material lifting mechanism includes a lifting frame plate and a lifting drive device for driving the lifting frame plate to move up and down; multiple pushing mechanisms are installed on the lifting frame plate, and the lifting drive device drives the lifting frame plate to move up and down, thereby sending the pushing mechanism to the transfer material hole to push the material.

[0021] The side of the material lifting mechanism is also provided with a lifting sleeve for keeping the lifting frame plate stable during lifting; a guide rod is provided at the lower end of the lifting frame plate, and the guide rod is slidably sleeved in the lifting sleeve.

[0022] The pack pushing mechanism includes a first pack pushing drive device and a second pack pushing drive device installed at the edge of the end face of the lifting frame plate. The execution end of the first pack pushing drive device is driven by a first paddle, and the drive connection of the second pack pushing drive device is equipped with a second paddle.

[0023] The first and second paddles are located on the transverse and longitudinal sides of the transfer cavity, respectively. During material preparation, the first and second push-pack driving devices drive the first and second paddles to push the sealed packaged product against the inner wall of the transfer cavity from both sides.

[0024] The material handling mechanism includes a material handling robotic arm, a material handling fixture driven and connected to the execution end of the material handling robotic arm, and a material handling bracket for mounting the material handling robotic arm; the material handling mechanism is also provided with a storage frame for placing the packaged finished products to be inspected.

[0025] The material handling robotic arm drives the material handling fixture to move the packaged finished products to be inspected from the storage box to the transfer platform.

[0026] Furthermore, the material handling unit includes a picking mechanism for picking up and placing packaged finished products, a transport mechanism for driving the picking mechanism to move, and a mounting frame for mounting the transport mechanism.

[0027] The transport mechanism drives the picking mechanism to the transfer platform. After the picking mechanism picks up the sealed finished product, the transport mechanism drives the picking mechanism to move to the turntable unit, where the picking mechanism places the sealed finished product to be inspected onto the turntable unit.

[0028] Furthermore, the package transport mechanism includes a package transport drive device and a sliding bracket that is driven and connected to the execution end of the package transport drive device and is used to mount the pickup mechanism; the mounting bracket also includes a sliding part; the sliding bracket is slidably mounted on the sliding part using a slide rail;

[0029] The picking mechanism includes a picking fixture and a picking lifting drive device for driving the picking fixture to rise and fall; the picking lifting drive device drives the picking fixture to rise and fall to realize the picking and placing of the packaged finished product.

[0030] Furthermore, the cup inspection mechanism includes a horizontal camera, a recognition drive device for driving the horizontal camera to move, a reflector group, and a fill light cover; the execution end of the recognition drive device drives and connects to the recognition frame plate, and the horizontal camera, reflector group, and fill light cover are all mounted on the recognition frame plate.

[0031] The supplementary lighting cover illuminates the lower surface of the packaged product to be inspected, and the reflector group reflects the light. The horizontally positioned camera acquires an image of the lower surface of the packaged product under the illumination of the reflector group.

[0032] Furthermore, the sealing inspection mechanism includes a fixed frame, a fixed light source assembly, a sealing film inspection mechanism installed in the fixed frame, a sealing inspection mechanism, and a moving drive mechanism for driving the sealing inspection mechanism to move.

[0033] When the packaged product to be inspected enters the sealing inspection mechanism, the fixed light source assembly provides supplemental lighting to one end face of the packaged product to be inspected. The sealing film inspection mechanism performs visual inspection on the sealing film of the packaged product to be inspected in a fixed state. The moving drive mechanism drives the sealing inspection mechanism to move in order to inspect the seal on the other end face of the packaged product to be inspected.

[0034] Furthermore, the mobile drive mechanism includes a mobile drive component and a mobile frame plate that is driven and connected to the execution end of the mobile drive component. The mobile frame plate is provided with a mobile side plate for mounting the sealing inspection mechanism.

[0035] During visual inspection, the moving drive component drives the moving frame plate to move, which in turn drives the moving side plate to move, thereby driving the sealing visual inspection mechanism to visually inspect the sealed finished product;

[0036] The sealing inspection mechanism includes an inspection camera assembly, a mobile light source assembly, and an optical lens, all mounted on the movable side plate; the light from the mobile light source assembly illuminates the surface to be inspected of the sealed product through the optical lens; the mobile light source assembly has a through hole in the middle to facilitate imaging by the inspection camera assembly.

[0037] The present invention also provides a contact lens packaging sealing quality inspection system for implementing the above-mentioned contact lens packaging sealing quality inspection method, including a turntable unit for operating the sealed finished product, a material handling unit for transporting the sealed finished product arranged along the turnover path of the turntable unit, a cup body visual inspection mechanism for inspecting the cup body, a sealing visual inspection mechanism, and multiple unloading units.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0039] In actual use, the material handling unit places the packaged finished products to be inspected into the turntable unit, which then rotates the packaged finished products. When the packaged finished products enter the cup inspection mechanism, the cup inspection mechanism inspects the PP cups of the packaged finished products. When the packaged finished products enter the sealing inspection mechanism, the sealing inspection mechanism inspects the sealing film and / or seal on the upper surface of the packaged finished products to be inspected. When the packaged finished products enter the unloading area, multiple unloading units sort and move the packaged finished products out of the turntable unit, completing the inspection operation.

[0040] This method and system for inspecting the sealing quality of contact lenses uses a material handling unit in conjunction with a turntable unit to automate the feeding of finished products to be inspected. The cup body inspection mechanism and the sealing inspection mechanism inspect various defects in the finished products. Multiple unloading units are used to grade and unload the products in the unloading area, replacing the existing manual inspection, improving inspection efficiency, and thus improving product quality. At the same time, different inspection results are sorted to facilitate further processing. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the present invention;

[0042] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0043] Figure 3 This is a schematic diagram of the feeding unit of the present invention;

[0044] Figure 4 This is a three-dimensional structural diagram of the feeding unit of the present invention;

[0045] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0046] Figure 6 This is a three-dimensional structural diagram of the material handling unit of the present invention;

[0047] Figure 7 This is a three-dimensional structural view of the cup inspection mechanism of the present invention;

[0048] Figure 8 This is a schematic diagram of the sealing inspection mechanism of the present invention;

[0049] Figure 9 This is a schematic diagram of the internal structure of the sealing inspection mechanism of the present invention;

[0050] Figure 10 This is a three-dimensional structural diagram of the sealing inspection mechanism of the present invention. Detailed Implementation

[0051] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0052] refer to Figure 1-10 As shown, the present invention provides a method for quality inspection of the sealing of contact lens packaging, including a turntable unit 700 for operating the sealed finished product 800, a material handling unit 300, a cup body visual inspection mechanism 400, a sealing visual inspection mechanism 500, and multiple unloading units 600 arranged along the turnover path of the turntable unit 700; the specific steps are as follows:

[0053] S10. The material handling unit 300 places the packaged finished product 800 to be inspected onto the turntable unit 700;

[0054] S20. The turntable unit 700 drives the packaged finished product 800 to be inspected into the cup body visual inspection mechanism 400;

[0055] S30. The cup body inspection mechanism 400 inspects the PP cup on the lower end face of the sealed finished product 800 to be inspected; the turntable unit 700 drives the inspected sealed finished product 800 into the sealing inspection mechanism 500;

[0056] S40. The sealing inspection mechanism 500 inspects the sealing film and / or seal on the upper surface of the sealed package 800 to be inspected; the turntable unit 700 drives the inspected sealed package 800 into the unloading area composed of multiple unloading units 600;

[0057] S50. In the unloading area, multiple unloading units 600 sort and move the packaged finished products 800 out of the turntable unit 700 to complete the inspection operation.

[0058] This method for inspecting the quality of contact lens packaging seals utilizes a material handling unit 300 in conjunction with a turntable unit 700 to automate the feeding of finished packaged products to be inspected. A cup body inspection mechanism 400 and a sealing inspection mechanism 500 inspect various defects in the finished packaged products 800. Multiple unloading units 600 then grade and unload the products in the unloading area, replacing existing manual inspection, improving inspection efficiency, and thus enhancing product quality. Simultaneously, different inspection results are sorted for further processing.

[0059] In this embodiment, the material handling unit 300 is also provided with a material feeding unit 200, which includes a material handling mechanism 210, a transfer platform 220, and a material sorting mechanism 230.

[0060] Step S10 also includes:

[0061] S11. The material handling mechanism 210 transports the packaged finished product 800 to be inspected to the transfer platform 220;

[0062] S12. The sorting mechanism 230 sorts the sealed finished products 800 at the transfer table 220 to unify the placement of the sealed finished products. The picking unit 300 transports the sorted sealed finished products 800 to the turntable unit 700.

[0063] The material handling mechanism 210 is used to grab and transport the packaged finished product 800 and place the packaged finished product 800 on the transfer platform 220; the material sorting mechanism 230 sorts the packaged finished product 800, unifies the placement of the packaged finished product 800, and completes the material preparation.

[0064] In this embodiment, the lower end face of the transfer platform 220 is further provided with a rotary drive device 223, and the upper end face of the transfer platform 220 is provided with a transfer cavity 221, each transfer cavity 221 being provided with several clearance grooves 222; the rotary drive device 223 is used to drive the transfer platform 220 to rotate so that the transfer platform 220 can rotate and change direction; the material handling mechanism 230 includes a push-bag mechanism 233 and a material handling lifting mechanism 231 that drives the push-bag mechanism 233 to rise and fall; in step S12, it further includes:

[0065] S121. The pusher mechanism 233 opens the execution end, and the material lifting mechanism 231 drives the pusher mechanism 233 to the sealed finished product position 800;

[0066] S122. After passing through the clearance groove 222, the execution end of the pusher mechanism 233 pushes the sealed finished product 800 to press against the inner wall of the transfer material cavity 221, completing the material preparation.

[0067] Specifically, the transfer platform 220 is equipped with multiple transfer holes 221 to increase the amount of material processed at one time, and the transfer holes 221 are provided with clearance grooves 222 to ensure that the material processing mechanism 230 can smoothly contact the packaged finished product 800 for packaging. The rotary drive device 223 is used to drive the transfer platform 220 to rotate. The rotation of the multiple transfer holes 221 is reversed so that one side of the transfer platform 220 processes material, while the other side receives the material from the material handling mechanism 210.

[0068] In this embodiment, the material lifting mechanism 231 includes a lifting frame plate 2312 and a lifting drive device 2311 for driving the lifting frame plate 2312 to move up and down; multiple pushing mechanisms 233 are installed on the lifting frame plate 2312, and the lifting drive device 2311 drives the lifting frame plate 2312 to move up and down, thereby sending the pushing mechanism 233 to the transfer material pit 221 to push the material. Specifically, the lifting drive device 2311 can be a lifting cylinder.

[0069] In this embodiment, the side of the material lifting mechanism 231 is also provided with a lifting sleeve 232 for keeping the lifting frame plate 2312 stable in lifting; a guide rod is provided at the lower end of the lifting frame plate 2312, and the guide rod is slidably sleeved in the lifting sleeve 232. The lifting sleeve 232 can assist the lifting frame plate 2313 in stable lifting.

[0070] In this embodiment, the pack pushing mechanism 233 includes a first pack pushing drive device 2331 and a second pack pushing drive device 2334 installed at the edge of the end face of the lifting frame plate 2312. The execution end of the first pack pushing drive device 2331 is driven to connect to a first paddle 2332, and the execution end of the second pack pushing drive device 2334 is driven to connect to a second paddle 2333. The first paddle 2332 and the second paddle 2333 are respectively located on the transverse side and the longitudinal side of the transfer material pit 221.

[0071] Specifically, the first push-pack driving device 2331 and the second push-pack driving device 2334 can be cylinders. During material preparation, the first push-pack driving device 2331 and the second push-pack driving device 2334 respectively drive the first paddle 2332 and the second paddle 2333 to push the sealed finished product 800 against the inner wall of the transfer material cavity 221 from both sides, thereby arranging the sealed finished product 800 to unify the placement of the sealed finished product 800.

[0072] In this embodiment, the material handling mechanism 210 includes a material handling robotic arm 211, a material handling fixture 213 driven and connected to the execution end of the material handling robotic arm 211, and a material handling bracket for mounting the material handling robotic arm 211. The material handling mechanism 210 also includes a storage frame 100 for placing the packaged finished product 800 to be inspected. The material handling robotic arm 211 drives the material handling fixture 213 to transport the packaged finished product 800 to be inspected from the storage frame 100 to the transfer platform 220. Specifically, the material handling fixture 213 can be a suction cup or gripper, etc., capable of picking up and placing the packaged finished product 800.

[0073] In this embodiment, the material handling unit 300 includes a picking mechanism 330 for picking up and placing the packaged finished product 800, a transport mechanism 320 for driving the picking mechanism 330 to move, and a mounting frame 310 for mounting the transport mechanism 320. The transport mechanism 320 drives the picking mechanism 330 to the transfer platform 220. After the picking mechanism 330 picks up the packaged finished product 800, the transport mechanism 320 drives the picking mechanism 330 to move to the turntable unit 700. The picking mechanism 330 places the packaged finished product 800 to be inspected on the turntable unit 700.

[0074] Specifically, the transport mechanism 320 drives the picking mechanism 330 to move between the transfer platform 220 and the turntable unit 700. The picking mechanism 330 picks up and places the sealed finished product 800, realizing automated and efficient material handling of the sealed finished product 800 and improving the material loading efficiency of the sealing inspection work.

[0075] In this embodiment, the package transport mechanism 320 includes a package transport drive device 321 and a sliding hanger 322 drivenly connected to the execution end of the package transport drive device 321 and used to install the pickup mechanism 330; the mounting frame 310 also includes a sliding part 311; the sliding hanger 322 is slidably mounted on the sliding part 311 using a slide rail; the pickup mechanism 330 includes a pickup fixture 332 and a pickup lifting drive device 331 that drives the pickup fixture 332 to rise and fall; the pickup lifting drive device 331 drives the pickup fixture 332 to rise and fall to realize the picking and placing action of the sealed finished product 800; the package transport drive device 321 can be a telescopic cylinder, used to drive the sliding hanger 322 to slide back and forth on the sliding part 311, thereby driving the pickup mechanism 330 to move; the pickup fixture 332 can be a cylinder or a gripper, etc., that can pick up and place the sealed finished product 800.

[0076] In this embodiment, the cup inspection mechanism 400 includes a horizontal camera 430, an identification drive device 410 for driving the horizontal camera 430 to move, a reflector group 420, and a supplementary light cover 440. The execution end of the identification drive device 410 is connected to the identification frame plate 411. The horizontal camera 430, the reflector group 420, and the supplementary light cover 440 are all mounted on the identification frame plate 411. The supplementary light cover 440 provides supplementary lighting to the lower end surface of the packaged product 800 to be inspected. The reflector group 420 reflects the light. The horizontal camera 430 acquires an image of the lower end surface of the packaged product 800 under the illumination of the reflector group 420.

[0077] Specifically, the packaged product 800 has two surfaces to be inspected: one is the sealing film, and the other is the PP cup surface. The horizontal camera 430 is a camera capable of recognizing and acquiring color image information. The supplementary light cover 440 provides supplementary light to the lower surface of the packaged product 800 to be inspected, providing better lighting conditions for visual inspection and recognition. The reflector group 420 can further magnify the image so that the horizontal camera 430 can obtain clearer details. It can detect whether there are foreign objects and whether the preservation liquid is leaking or contains impurities.

[0078] In this embodiment, the sealing inspection mechanism 500 includes a fixed frame 510, a fixed light source assembly 530, a sealing film inspection mechanism 520 installed in the fixed frame 510, a sealing inspection mechanism 550, and a moving drive mechanism 540 for driving the sealing inspection mechanism 550 to move.

[0079] When the finished package 800 to be inspected enters the sealing inspection mechanism 500, the fixed light source assembly 530 provides supplemental lighting to one end face of the finished package 800 to be inspected. The sealing film inspection mechanism 520 performs visual inspection on the sealing film of the finished package 800 to be inspected in a fixed state. The moving drive mechanism 540 drives the sealing inspection mechanism 550 to move in order to inspect the seal on the other end face of the finished package 800 to be inspected.

[0080] Specifically, the sealing film of the finished package 800 is aluminum foil heat-sealed. The sealing film inspection mechanism 520 can be a fixed camera module. The sealing film inspection mechanism 520 performs fixed-position inspection on the upper end face of the finished package 800 to be inspected, acquires image information of the aluminum foil on the upper end face of the finished package 800, and scans the information code and collects aluminum foil information to determine whether the aluminum foil on the front of the finished package 800 is damaged or has incorrect characters; the moving drive mechanism 540 drives the sealing inspection mechanism 550 to perform moving inspection on the lower end face of the finished package 800, and performs visual inspection on the heat sealing ring and the integrity and flatness of the seal from the bottom to determine whether there are defects such as missing seal, detachment, or leakage.

[0081] In this embodiment, the mobile drive mechanism 540 includes a mobile drive component 541 and a mobile frame plate 542 drivenly connected to the execution end of the mobile drive component 541. The mobile frame plate 542 is provided with a mobile side plate 543 for mounting the sealing inspection mechanism 550. During inspection, the mobile drive component 541 drives the mobile frame plate 542 to move, thereby moving the mobile side plate 543 and driving the sealing inspection mechanism 550 to inspect the sealed finished product 800.

[0082] Specifically, the moving drive component 541 can be a linear motor, and the sealing inspection mechanism 550 is vertically installed using a moving side plate 543 to ensure accurate acquisition of the lower end face image of the sealed product 800; the execution end of the moving drive component 541 is connected to the moving side plate 543 using a moving frame plate 542, thereby realizing reciprocating drive of the sealing inspection mechanism 550 to ensure multiple acquisitions of the lower end face image of the sealed product 800.

[0083] In this embodiment, the sealing inspection mechanism 550 includes a visual inspection camera assembly 551, a mobile light source assembly 552, and an optical lens 553, all mounted on the movable side plate 543. The light from the mobile light source assembly 552 illuminates the surface to be inspected of the packaged product 800 through the optical lens 553. The mobile light source assembly 552 has a through hole in the middle to facilitate imaging by the visual inspection camera assembly 551. The visual inspection camera assembly 551 is a camera module capable of acquiring color images. The mobile light source assembly 552 illuminates the seal of the lower end face of the packaged product 800 through the optical lens 553. The inspection camera 551 images through the through hole in the middle of the mobile light source assembly 552 and refracts the light through the optical lens 553, thereby increasing the imaging range of the visual inspection camera assembly 551 and improving the visual inspection efficiency of the seal of the lower end face of the packaged product 800.

[0084] In this embodiment, the fixed frame 510 includes a main frame 512, a lens assembly bracket 511 mounted on the main frame 512, and a light source bracket 513 mounted inside the main frame 512; the sealing inspection mechanism 520 is mounted on the lens assembly bracket 511 using an adjustment slide 514; and the fixed light source assembly 530 is mounted on the light source bracket 513.

[0085] Specifically, the main frame 512 can adopt a dome-type structure without top and bottom surfaces. The lens assembly support 511 is installed on the outer wall of the main frame 512. The sealing inspection mechanism 520 is installed on the lens assembly support 511 and located above the sealed finished product 800. The fixed light source assembly 530 is set on the inner wall of the main frame 512 using a light source support 513. It is used to supplement the light of the sealed finished product 800 to be inspected. The dome-type structure of the main frame 512 can isolate external interference light from interfering with the inspection operation. The adjusting slide 514 adopts a lifting slide fixture that can be manually or automatically adjusted, and the height can be adjusted to improve the adaptability of the equipment.

[0086] In this embodiment, the main frame 512, the lens assembly bracket 511, and the light source bracket 513 are all provided with adjustment slots 515; the lens assembly bracket 511 is connected to the main frame 512 with the adjustment slots 515 to adjust the installation height; the fixed light source assembly 530 is connected to the light source bracket 513 with the adjustment slots 515, so that the installation position of the fixed light source assembly 530 can be adjusted.

[0087] Specifically, the adjustment slot 515, combined with bolts, allows for adjustment of the installation position within the length range of the slot. The installation height of the lens assembly bracket 511 can be adjusted between the lens assembly bracket 511 and the main frame 512 via the adjustment slot 515. The fixed light source assembly 530 can control the installation interval distance via the adjustment slot 515 to ensure the light source covers the illumination area of ​​the packaged finished products 800 of different shapes and sizes, improve the quality of supplementary lighting, and ensure the quality of image information acquired by the sealing inspection mechanism 520.

[0088] In this embodiment, each unloading unit 600 is equipped with a receiving device 900 at its unloading point; each receiving device 900 is used to receive the packaged finished products 800 sorted by the corresponding unloading unit 600. Specifically, each unloading unit 600 corresponds to a visual inspection result classification. When the turntable unit 700 transfers the packaged finished products 800 to be unloaded to the corresponding classified unloading unit 600, the unloading unit 600 sorts the packaged finished products 800 to the receiving device 900 for subsequent processing.

[0089] In this embodiment, the technical solution and structure of the unloading unit 600 are similar to those of the picking unit 300, so the unloading unit 600 will not be described in detail. The difference between the two is that the picking unit 300 is used to move the packaged finished product 800 onto the turntable unit 700, while the unloading unit 600 is used to move the packaged finished product 800 out of the turntable unit 700.

[0090] This invention also provides a contact lens packaging sealing quality inspection system, including a turntable unit 700 for operating the sealed finished product 800, a material handling unit 300 for transporting the sealed finished product 800 along the turnover path of the turntable unit 700, a cup body inspection mechanism 400, a sealing inspection mechanism 500, and multiple unloading units 600. This contact lens packaging sealing quality inspection system uses the material handling unit 300 in conjunction with the turntable unit 700 to achieve automated feeding of the sealed finished product to be inspected. The cup body inspection mechanism 400 and the sealing inspection mechanism 500 inspect various defects in the sealed finished product 800. Furthermore, the multiple unloading units 600 perform graded unloading in the unloading area, replacing existing manual inspection, improving inspection efficiency, and thus improving product quality. Simultaneously, different inspection results are sorted for further processing.

[0091] The specific embodiments described in this invention are merely illustrative examples illustrating the spirit of the invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the scope defined by the spirit of the invention.

Claims

1. A method for detecting the quality of an outer package of a contact lens, characterized by, The application relates to a packaging product detection device, which comprises a rotary table unit (700) for operating a packaging product (800), a material taking unit (300) arranged along a rotation path of the rotary table unit (700), a cup body visual inspection mechanism (400), a sealing visual inspection unit (500) and a plurality of material discharging units (600); the specific steps are as follows: S10. The material taking unit (300) places the packaging product (800) to be detected on the rotary table unit (700); S20. The rotary table unit (700) drives the packaging product (800) to be detected to enter the cup body visual inspection mechanism (400); S30. The cup body visual inspection mechanism (400) detects the PP cup of the packaging product (800) to be detected; the rotary table unit (700) drives the detected packaging product (800) to enter the sealing visual inspection unit (500); S40. The sealing visual inspection unit (500) detects the sealing film and / or the sealing of the packaging product (800) to be detected; the rotary table unit (700) drives the detected packaging product (800) to enter the material discharging area composed of the plurality of material discharging units (600); S50. In the material discharging area, the plurality of material discharging units (600) sort and remove the packaging product (800) out of the rotary table unit (700), and the detection work is completed; The cup body visual inspection mechanism (400) comprises a horizontal camera (430), an identification driving device (410) for driving the horizontal camera (430) to move, a mirror group (420) and a light supplement cover body (440); the execution end of the identification driving device (410) is drivingly connected with an identification rack plate (411), and the horizontal camera (430), the mirror group (420) and the light supplement cover body (440) are all mounted on the identification rack plate (411); The sealing visual inspection unit (500) comprises a fixed rack body (510), a fixed light source assembly (530), a sealing film visual inspection mechanism (520) mounted in the fixed rack body (510), a sealing visual inspection mechanism (550) and a moving driving mechanism (540) for driving the sealing visual inspection mechanism (550) to move; The moving driving mechanism (540) comprises a moving driving assembly (541), a moving rack plate (542) drivingly connected with the execution end of the moving driving assembly (541), and a moving side plate (543) for mounting the sealing visual inspection mechanism (550) is arranged on the moving rack plate (542); The sealing visual inspection mechanism (550) comprises a visual inspection camera assembly (551), a moving light source assembly (552) and an optical lens (553), which are all mounted on the moving side plate (543); the light rays of the moving light source assembly (552) pass through the optical lens (553) to supplement light for the surface to be detected of the packaging product (800); and a through hole is arranged in the middle of the moving light source assembly (552) to facilitate imaging of the visual inspection camera assembly (551).

2. The method of claim 1, wherein The material taking unit (300) is further provided with an upper material taking unit (200), and the upper material taking unit (200) comprises a material carrying mechanism (210), a transfer material table (220) and a material arranging mechanism (230); In step S10, the following is further included: S11. The material moving mechanism (210) moves the package product (800) to be detected to the transfer table (220); S12. The material arranging mechanism (230) arranges the package product (800) on the transfer table (220) to unify the placement position of the package product (800), and the taking unit (300) moves the arranged package product (800) to the transfer table unit (700).

3. The method for inspecting the quality of the outer packaging seal of contact lenses according to claim 2, characterized in that, The lower end surface of the transfer table (220) is further provided with a rotary driving device (223), and the upper end surface of the transfer table (220) is provided with a transfer material hole (221), each of which is provided with a plurality of position avoiding grooves (222); the rotary driving device (223) is used to drive the transfer table (220) to rotate; The material arranging mechanism (230) includes a package pushing mechanism (233) and a material arranging lifting mechanism (231) for driving the package pushing mechanism (233) to lift; in step S12, it further includes: S121. The package pushing mechanism (233) opens the execution end, and the material arranging lifting mechanism (231) drives the package pushing mechanism (233) to the package product (800); S122. After the execution end of the package pushing mechanism (233) passes through the position avoiding groove (222), the package product (800) is pushed against the inner wall of the transfer material hole (221), and the material arranging is completed.

4. The method of claim 3, wherein the step of detecting the quality of the outer package of the contact lens is performed by using a camera. The material arranging lifting mechanism (231) includes a lifting frame plate (2312) and a lifting driving device (2311) for driving the lifting frame plate (2312) to lift; a plurality of the package pushing mechanism (233) is installed on the lifting frame plate (2312), and the lifting driving device (2311) drives the lifting frame plate (2312) to lift, and then the package pushing mechanism (233) is sent to the transfer material hole (221) to push the material; ​ The side of the material arranging lifting mechanism (231) is further provided with a lifting sleeve (232) for keeping the lifting frame plate (2312) stable during lifting; the lower end of the lifting frame plate (2312) is provided with a guide rod, which is slidingly sleeved in the lifting sleeve (232); The package pushing mechanism (233) includes a first package pushing driving device (2331) and a second package pushing driving device (2334) installed on the end surface of the lifting frame plate (2312), the execution end of the first package pushing driving device (2331) is drivingly connected with a first paddle (2332), and the execution end of the second package pushing driving device (2334) is drivingly connected with a second paddle (2333); The first paddle (2332) and the second paddle (2333) are respectively located on the transverse side and the longitudinal side of the transfer material hole (221); during the material arranging, the first package pushing driving device (2331) and the second package pushing driving device (2334) respectively drive the first paddle (2332) and the second paddle (2333) to push the package product (800) against the inner wall of the transfer material hole (221) from both sides of the transfer material hole (221); The material moving mechanism (210) comprises a material moving robot arm (211), a material moving tool (213) in driving connection with the material moving robot arm (211), and a material moving support for mounting the material moving robot arm (211); and the material moving mechanism (210) is further provided with a storage frame (100) for placing the sealed package products (800) to be detected. The material moving robot arm (211) drives the material moving tool (213) to move the sealed package products (800) to be detected from the storage frame (100) to the transfer table (220).

5. The method for inspecting the quality of the outer packaging seal of contact lenses according to claim 2, characterized in that, The material taking unit (300) comprises a picking mechanism (330) for picking and placing the sealed package products (800), a package moving mechanism (320) for driving the picking mechanism (330) to move, and a mounting rack (310) for mounting the package moving mechanism (320). The package moving mechanism (320) drives the picking mechanism (330) to the transfer table (220), and after the picking mechanism (330) picks the sealed package products (800), the package moving mechanism (320) drives the picking mechanism (330) to move to the rotary table unit (700), and the picking mechanism (330) places the sealed package products (800) to be detected on the rotary table unit (700).

6. The method of claim 5, wherein the step of detecting the quality of the outer package of the contact lens is performed by using a camera. The package moving mechanism (320) comprises a package driving device (321) and a sliding hanger (322) in driving connection with the package driving device (321) and for mounting the picking mechanism (330); and the mounting rack (310) further comprises a sliding part (311), and the sliding hanger (322) is slidably mounted on the sliding part (311). The picking mechanism (330) comprises a picking tool (332) and a picking lifting driving device (331) for driving the picking tool (332) to lift; and the picking lifting driving device (331) drives the picking tool (332) to lift, so as to realize the picking and placing action of the sealed package products (800).

7. The method of claim 1, wherein the step of detecting the quality of the outer package of the contact lens is performed by a machine vision system. The light supplement cover (440) supplements light to the lower end face of the sealed package products (800) to be detected, the mirror group (420) reflects the light, and the horizontal camera (430) obtains the lower end face image of the sealed package products (800) under the illumination of the mirror group (420).

8. The method of claim 1, wherein the step of detecting the quality of the outer package of the contact lens is performed by a machine vision system. When the sealed package products (800) to be detected enter the sealing visual inspection unit (500), the fixed light source assembly (530) supplements light to one side end face of the sealed package products (800) to be detected, the sealing visual inspection mechanism (520) visually inspects the sealing film of the sealed package products (800) to be detected in the fixed state, and the moving driving mechanism (540) drives the sealing visual inspection mechanism (550) to move, so as to detect the sealing of the other side end face of the sealed package products (800) to be detected.

9. The method for inspecting the quality of the outer packaging seal of contact lenses according to claim 8, characterized in that, During the visual inspection, the moving driving assembly (541) drives the moving rack plate (542) to move, drives the moving side plate (543) to move, and then drives the sealing visual inspection mechanism (550) to visually inspect the sealed package products (800).

10. A contact lens overwrap closure quality detection system, characterized by, A method for inspecting the quality of the sealing of the outer package of contact lenses according to any one of claims 1-9, comprising a rotary table unit (700) for rotating the sealed products (800), a material taking unit (300) arranged along the rotation path of the rotary table unit (700) for taking the sealed products (800), a cup visual inspection mechanism (400) for inspecting the cup, a sealing visual inspection unit (500), and a plurality of material discharging units (600).

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