Visual detection device for contact lenses

Abstract

The utility model relates to the technical field of contact lens automatic production, in particular to a contact lens visual inspection device which comprises a fixed frame body, a fixed light source assembly, a sealing film visual inspection mechanism arranged in the fixed frame body, a sealing visual inspection mechanism and a movement driving mechanism for driving the sealing visual inspection mechanism to move, the fixed light source assembly supplements light to the end face of one side of a to-be-detected packaged finished product, the sealing film visual inspection mechanism conducts visual inspection on the to-be-detected packaged finished product, and the movable driving mechanism drives the sealing visual inspection mechanism to move so as to detect a sealing opening of the end face of the other side of the to-be-detected packaged finished product. According to the utility model, sealing film defect detection and bar code identification functions are realized; the movable driving mechanism drives the sealing visual inspection mechanism to dynamically inspect the PP cup surface, so that the quality of the contact lenses in the PP cup and the quality of the preserving fluid are ensured; a fixed and movable combined visual inspection mode is adopted, visual inspection of various flaws is achieved, the visual inspection efficiency is improved, and the working intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automated production technology of contact lenses, specifically a visual inspection device for contact lenses. Background Technology

[0002] Because finished PP cup packaging products often have various defects, such as scratches on the packaging surface, leakage, foreign objects, bubbles, empty cups, broken or damaged lettering, current optical contact lens packaging appearance inspection technology typically relies on manual labor. This method is limited by the efficiency of manual labor, has a low degree of automation, introduces many uncertainties, makes product quality difficult to control, is time-consuming and labor-intensive, and has high labor costs.

[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. Utility Model Content

[0004] The purpose of this invention is to provide a visual inspection device that can automatically detect the quality of packaged finished products.

[0005] To achieve the above objectives, this utility model provides the following technical solution;

[0006] A contact lens visual inspection device includes a fixed frame, a fixed light source assembly, a sealing inspection mechanism and a sealing inspection mechanism installed in the fixed frame, and a movement drive mechanism for driving the sealing inspection mechanism to move.

[0007] A 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 of the sealing film of the packaged product to be inspected. The moving drive mechanism drives the sealing inspection mechanism to move so as to inspect the seal on the other end face of the packaged product to be inspected.

[0008] 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.

[0009] During visual inspection, the moving drive assembly drives the moving frame and moving side plate to move. The moving side plate drives the sealing visual inspection mechanism to move at the surface of the sealed finished product to be inspected for inspection.

[0010] Furthermore, the sealing inspection mechanism includes a mobile camera assembly, a mobile light source assembly, and an optical lens, all mounted on the mobile side plate; the light from the mobile light source assembly passes through the optical lens to provide supplemental lighting to the surface to be tested of the sealed product; the mobile light source assembly has a through hole in the middle to facilitate imaging by the mobile camera assembly.

[0011] Furthermore, the fixed frame includes a main frame, a mirror assembly bracket mounted on the main frame, and a light source bracket mounted on the main frame;

[0012] The sealing inspection mechanism is mounted on the lens assembly bracket, and the fixed light source assembly is mounted on the light source bracket.

[0013] Furthermore, the sealing inspection mechanism is mounted on the lens assembly bracket using an adjustment slide.

[0014] Furthermore, adjustment slots are provided on the main frame, the mirror assembly bracket, and the light source bracket;

[0015] The mirror assembly bracket is connected to the main frame using an adjustment slot to adjust the installation height; the fixed light source assembly is connected to the light source bracket using an adjustment slot, and the installation position of the fixed light source assembly is adjusted by adjusting the installation position of the adjustment slot.

[0016] Furthermore, the sealing inspection mechanism is located above the finished package to be inspected, and the sealing inspection mechanism is located below the finished package to be inspected.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This contact lens visual inspection device uses a sealing inspection mechanism to inspect the upper surface of the sealed finished product from a fixed position, acquiring image information of the aluminum foil on the upper surface of the sealed finished product and scanning the information code. The collection of aluminum foil information facilitates the determination of defects such as damage or character errors on the front of the sealed finished product. The moving drive mechanism drives the sealing inspection mechanism to inspect the lower surface of the sealed finished product, visually inspecting the integrity and flatness of the heat sealing ring and the seal from the bottom, facilitating the determination of defects such as missing seals, detachment, and leakage.

[0019] This utility model has a compact structure. The sealing inspection mechanism performs static inspection of the end face of the sealed finished product to obtain overall planar information and realizes the functions of sealing defect detection and barcode recognition. The moving drive mechanism drives the sealing inspection mechanism to dynamically inspect the PP cup surface to ensure the quality of the contact lens and preservation solution inside the PP cup. The combination of fixed and moving inspection modes enables the inspection of various defects, which not only improves the inspection efficiency but also reduces the workload of the staff. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the present invention after partial concealment;

[0022] Figure 3 This is a three-dimensional structural schematic diagram of the present invention from another perspective. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] refer to Figure 1-3 As shown, a contact lens visual inspection device includes a fixed frame 510, a fixed light source assembly 530, a sealing film inspection mechanism 520 and a sealing inspection mechanism 550 installed in the fixed frame 510, and a moving drive mechanism 540 for moving the sealing inspection mechanism 550. The sealing film inspection mechanism 520 performs visual inspection on the sealing film of the packaged finished product 800 to be inspected, and the moving drive mechanism 540 drives the sealing inspection mechanism 550 to move to inspect the sealing on the other end face of the packaged finished product to be inspected.

[0025] Specifically, the sealing film of the finished package 800 is aluminum foil heat-sealed, and the sealing film inspection mechanism 520 can use a fixed camera module.

[0026] In practical use, the sealing inspection mechanism 520 performs fixed-position inspection on the upper end face of the packaged product 800 to be inspected, acquires image information of the aluminum foil on the upper end face of the packaged product 800, and scans the information code and collects aluminum foil information to facilitate the judgment of whether the aluminum foil on the front of the packaged product is damaged or has characters that are incorrect; the moving drive mechanism 540 drives the sealing inspection mechanism 550 to perform visual inspection on the lower end face of the packaged product 800, and performs visual inspection on the integrity and flatness of the heat sealing ring and the seal from the bottom, which facilitates the judgment of whether there are defects such as missing seal, detachment, and leakage.

[0027] This contact lens visual inspection device has a compact structure. The sealing inspection mechanism performs static visual inspection of the end face of the sealed finished product 800, obtaining overall planar information and realizing the functions of sealing defect detection and barcode recognition. The moving drive mechanism drives the sealing inspection mechanism to dynamically inspect the PP cup surface, ensuring the quality of the contact lens and preservation solution inside the PP cup. The device adopts a combination of fixed and moving inspection modes to achieve the inspection of various defects, which not only improves the inspection efficiency but also reduces the workload of the staff.

[0028] In this embodiment, the mobile drive mechanism 540 includes a mobile drive assembly 541 and a mobile frame plate 542 driven by the execution end of the mobile drive assembly 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 assembly 541 drives the mobile frame plate 542 and the mobile side plate 543 to move, and the mobile side plate 543 drives the sealing inspection mechanism 550 to move at the inspection surface of the sealed finished product 800 for inspection. Specifically, the mobile drive assembly 541 can be a linear motor, and the sealing inspection mechanism 550 is vertically mounted using the mobile side plate 543.

[0029] In this embodiment, the sealing inspection mechanism 550 includes a mobile camera assembly 551, a mobile light source assembly 552, and an optical lens 553, all mounted on the mobile 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 mobile camera assembly 551. The mobile 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 mobile camera assembly 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 mobile camera assembly 551 and improving the inspection efficiency of the seal of the lower end face of the packaged product 800.

[0030] 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 on the main frame 512; the sealing inspection mechanism 520 is mounted on the lens assembly bracket 511, and the fixed light source assembly 530 is mounted on the light source bracket 513; the main frame 512 may adopt a dome-shaped structure without upper and lower bottom surfaces, the lens assembly bracket 511 is mounted on the outer wall of the main frame 512, the sealing inspection mechanism 520 is located above the sealed finished product 800, and is used to acquire image information of the upper surface of the sealed finished product 800, perform quality inspection of the aluminum foil of the sealed finished product, and scan and identify various types of barcodes; the fixed light source assembly 530 is set on the inner wall of the main frame 512 using the light source bracket 513; it is used to supplement the light of the sealed finished product 800 to be inspected, and the dome-shaped structure of the main frame 512 can isolate external interference light from interfering with the inspection operation.

[0031] In this embodiment, the sealing inspection mechanism 520 is mounted on the lens assembly bracket 511 using an adjustment slide 514. The adjustment slide 514 can be a manually or automatically adjustable lifting slide fixture. The height of the sealing inspection mechanism 520 can be adjusted by adjusting the slide 514, thereby improving the adaptability of the equipment.

[0032] In this embodiment, adjustment slots 515 are provided on the main frame 512, lens assembly bracket 511, and light source bracket 513. The installation height of the lens assembly bracket 511 is adjusted at the connection with the main frame 512 using the adjustment slots 515. The fixed light source assembly 530 is connected to the light source bracket 513 using the adjustment slots 515, and the installation position of the fixed light source assembly 530 is adjusted by adjusting the installation position with the adjustment slots 515. The adjustment slots 515 are used with bolts to adjust the installation position within the length 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 using the adjustment slots 515. The fixed light source assembly 530 can have its installation interval distance controlled by the adjustment slots 515 to ensure that the light source can cover the finished packaging products 800 of different shapes and sizes, thereby improving the quality of supplementary lighting and ensuring that the sealing inspection agency 520 obtains high-quality image information.

[0033] In this embodiment, the sealing inspection mechanism 520 is located above the finished package 800 to be inspected, and the sealing inspection mechanism 550 is located below the finished package 800 to be inspected.

[0034] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by the spirit of this utility model.

Claims

1. A contact lens vision detection device, characterized in that, It includes a fixed frame (510), a fixed light source assembly (530), a sealing 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. The fixed light source assembly (530) provides supplemental lighting to one side of the packaged product (800) to be inspected, the sealing film inspection mechanism (520) performs visual inspection on the sealing film of the packaged product (800) to be inspected, and the moving drive mechanism (540) drives the sealing inspection mechanism (550) to move to inspect the sealing on the other side of the packaged product (800) to be inspected.

2. The contact lens vision testing device according to claim 1, characterized in that, The mobile drive mechanism (540) includes a mobile drive assembly (541) and a mobile frame plate (542) drivenly connected to the execution end of the mobile drive assembly (541). The mobile frame plate (542) is provided with a mobile side plate (543) for installing the sealing inspection mechanism (550). During visual inspection, the moving drive assembly (541) drives the moving frame plate (542) and the moving side plate (543) to move. The moving side plate (543) drives the sealing visual inspection mechanism (550) to move on the surface to be inspected of the sealed finished product (800) for inspection.

3. The contact lens vision testing device according to claim 2, characterized in that, The sealing inspection mechanism (550) includes a mobile camera assembly (551), a mobile light source assembly (552), and an optical lens (553) all mounted on the mobile side plate (543); the light from the mobile light source assembly (552) passes through the optical lens (553) to provide supplementary lighting to the surface to be tested of the sealed product (800); the mobile light source assembly (552) has a through hole in the middle to facilitate imaging by the mobile camera assembly (551).

4. The contact lens vision testing device according to claim 1, characterized in that, The fixed frame (510) includes a main frame (512), a mirror assembly bracket (511) mounted on the main frame (512), and a light source bracket (513) mounted on the main frame (512). The sealing inspection mechanism (520) is mounted on the lens assembly bracket (511), and the fixed light source assembly (530) is mounted on the light source bracket (513).

5. The contact lens vision testing device according to claim 4, characterized in that, The sealing inspection mechanism (520) is mounted on the lens assembly bracket (511) using an adjustment slide (514).

6. The contact lens vision testing device according to claim 4, characterized in that, Adjustment slots (515) are provided on the main frame (512), the lens assembly bracket (511), and the light source bracket (513); The mirror assembly bracket (511) and the main frame (512) are connected by an adjustment groove (515) to adjust the installation height; the fixed light source assembly (530) is connected to the light source bracket (513) by an adjustment groove (515), and the installation position of the fixed light source assembly (530) is adjusted by adjusting the installation position of the fixed light source assembly (530) with the adjustment groove (515).

7. The contact lens vision testing device according to claim 1, characterized in that, The sealing inspection mechanism (520) is located above the finished package (800) to be inspected, and the sealing inspection mechanism (550) is located below the finished package (800) to be inspected.

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