A solvent bonding mold injection device for contact lens fitting cups

By designing a liquid injection device for the fusion molding of contact lens assembly cups, the problems of liquid splashing and contamination were solved, achieving efficient and accurate liquid injection and encapsulation, ensuring the quality and safety of contact lenses, and making it suitable for mass production.

CN224561967UActive Publication Date: 2026-07-28HUA NUOSEN (WUHAN) BIOMEDICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUA NUOSEN (WUHAN) BIOMEDICAL TECH CO LTD
Filing Date
2025-07-18
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

In existing contact lens assembly cups, liquid is prone to splashing during the filling process, allowing outside air, dust, and microorganisms to enter and contaminate the contact lenses, affecting their quality and safety.

Method used

A liquid injection device for fusion molding of contact lens assembly cups has been designed, including an operating table, a material tray, a conveyor belt, a feeding component, an unloading component, a packaging component, and a packaging platform. Through precise mechanical structure and packaging method, the device ensures accurate liquid injection and double packaging to prevent contamination.

Benefits of technology

It improves the accuracy and efficiency of the injection process, protects the quality and safety of contact lenses, reduces the difficulty of equipment design and maintenance, and enhances production smoothness and product quality stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of welding mould injection devices for contact lens assembly cup, the device is based on operation platform, material tray is equipped in upper left side, right side has conveying belt and storage tray, first layer encapsulation, puncture injection piece and second layer encapsulation are sequentially arranged on conveying belt, complete the encapsulation and injection process to assembly cup, conveying belt two sides are respectively configured with feeding assembly and discharging assembly, by the cooperation of transverse slide rail, longitudinal guide rail and transmission motor, realize efficient accurate material handling, there is contact lens placing cavity in the cup group where assembly cup is, lower encapsulation table and top encapsulation table are respectively equipped, and with corresponding film sealing, in addition, encapsulation table is equipped with antiskid line, cup group has bending line, the device structure design is reasonable, can effectively improve the production efficiency of contact lens assembly cup, ensure encapsulation quality, satisfy large-scale production demand, with remarkable practical value.
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Description

Technical Field

[0001] This utility model belongs to the technical field of contact lens manufacturing, specifically relating to a melting and injection device for contact lens assembly cups. Background Technology

[0002] A liquid injection device for contact lens assembly cups is a specialized component used in the contact lens assembly process. Its main function is to precisely inject specific liquids, such as care solutions for storing, cleaning, and moisturizing contact lenses, into the assembly cups. It typically has a function to control the injection volume, injecting liquid into the corresponding assembly cups according to a preset dosage to ensure a suitable liquid environment for the contact lenses. This facilitates the smooth progress of subsequent processing, testing, and other related procedures. Furthermore, the injection operation often emphasizes accuracy, stability, and hygiene to avoid contaminating the contact lenses or affecting their quality.

[0003] However, existing contact lens cups are sealed after liquid injection, which can cause liquid splashing during the injection process. This also makes it easy for external air, dust, microorganisms, etc., to enter, thus contaminating the internal contact lenses and the injection solution, affecting the quality and safety of contact lenses. Utility Model Content

[0004] The purpose of this invention is to provide a fusion molding and liquid injection device for contact lens assembly cups, in order to solve the problem mentioned in the background art that the existing contact lens assembly cups, after liquid injection and sealing, cause liquid splashing during the injection process, and at the same time, make it easy for external air, dust, microorganisms, etc. to enter, thereby contaminating the internal contact lenses and the injection liquid, affecting the quality and safety of contact lenses.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquid injection device for a fusion molding process for contact lens assembly cups, including an operating table; A material tray is located on the upper left side of the operating table, a conveyor belt is located on the right side of the material tray, and a storage tray is located on the right side of the conveyor belt. A first layer of encapsulation is provided on the upper left side of the conveyor belt, a puncture injection component is provided on the right side of the first layer of encapsulation, a second layer of encapsulation is provided on the right side of the puncture injection component, and a cup group is arranged in an array inside the material tray.

[0006] Preferably, a feeding component is provided on the left side of the conveyor belt, and a discharging component is provided on the right side of the conveyor belt.

[0007] Preferably, a transverse slide rail is provided at the bottom of the feeding component, a drive motor is provided above the transverse slide rail, a longitudinal guide rail is provided to the right of the drive motor, and a hanging basket is provided at the bottom of the longitudinal guide rail.

[0008] Preferably, the feeding component slides laterally with the transverse slide rail, and the basket slides longitudinally with the longitudinal guide rail.

[0009] Preferably, the bottom of the feeding assembly is also provided with a transverse slide rail, a longitudinal guide rail, a drive motor, and a hanging basket, the hanging basket corresponding to the cup group.

[0010] Preferably, a contact lens placement cavity is arranged in an array inside the cup assembly, a lower encapsulation platform is arranged above the contact lens placement cavity, and a top encapsulation platform is arranged above the lower encapsulation platform.

[0011] Preferably, the lower packaging stage is sealed with a lower sealing film, and the upper packaging stage is sealed with a upper sealing film.

[0012] Preferably, the lower and upper packaging platforms are provided with anti-slip textures, and the cup group has an array of bend lines at its internal position.

[0013] Compared with the prior art, this utility model provides a welding mold injection device for contact lens assembly cups, which has the following advantages: The conveyor belt features a first-layer encapsulation component, a puncture-injection component, a second-layer encapsulation component, cup assemblies, a feeding assembly, a discharging assembly, a transverse slide rail, a drive motor, a longitudinal guide rail, and a basket. The feeding assembly is located on the left side of the conveyor belt, with a transverse slide rail at the bottom, a drive motor at the top, and a longitudinal guide rail and a basket at the bottom on the right side. The feeding assembly slides laterally along the transverse slide rail, and the basket slides longitudinally along the longitudinal guide rail. This design allows the feeding assembly to move flexibly between the tray and the conveyor belt, accurately picking up cup assemblies and placing them onto the conveyor belt, greatly improving feeding efficiency and accuracy. The discharging assembly on the right side of the conveyor belt has the same structure as the feeding assembly, also featuring a transverse slide rail, a longitudinal guide rail, a drive motor, and a basket. The basket corresponds to the cup assembly, facilitating efficient discharging. The process is as efficient and accurate as the feeding process, quickly transferring the cups that have completed liquid injection and sealing from the conveyor belt to the storage location, ensuring the smoothness of the production process. The first layer of sealing components, the puncture and liquid injection components, and the second layer of sealing components are arranged sequentially above the conveyor belt, so that the cups can complete the lower layer sealing, liquid injection, and top layer sealing operations in sequence during the transmission process. This ensures that the sealing and liquid injection process of each assembled cup is standardized and orderly, which is conducive to improving the stability of product quality. The feeding and unloading components have the same structure, using the same transverse slide rails, longitudinal guide rails, drive motors, and baskets, which not only reduces the design and manufacturing difficulty of the equipment, but also facilitates later maintenance and upkeep, improving the overall reliability and economy of the equipment.

[0014] By employing a cup assembly, contact lens placement chambers, a lower sealing platform, a top sealing platform, a lower sealing film, and a top sealing film, the cup assembly internally arrays contact lens placement chambers. This layout allows for the inclusion of multiple contact lens placement areas within a limited cup assembly space, effectively improving the utilization rate of unit space and suiting the needs of large-scale production. Through a rational array arrangement, each contact lens placement chamber can be kept independent while achieving a compact design, contributing to improved production efficiency. The lower and top sealing platforms provide a dual-sealing structure for the contact lens placement chambers: the lower sealing film is sealed on the lower sealing platform, and the top sealing film is sealed on the top sealing platform. This two-layer sealing structure better protects the contents of the contact lens placement chambers, preventing the entry of external impurities, moisture, and air, effectively extending the shelf life of the contact lenses within the placement chambers and ensuring product quality. The layered sealing platform design makes the sealing operation more convenient. During production, the lower sealing film is first applied to the lower sealing platform, and then the top sealing film is applied to the top sealing platform. This step-by-step sealing method conforms to the logic of the production process, improving production accuracy and efficiency, and reducing errors during production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the feeding assembly in this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the cup assembly in this utility model.

[0018] Figure 4 This is a schematic diagram of the structure of the lower sealing film in this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the top sealing film in this utility model.

[0020] In the diagram: 1. Operating table; 2. Material tray; 3. Cup assembly; 4. Feeding assembly; 5. First layer encapsulation component; 6. Puncture and injection component; 7. Second layer encapsulation component; 8. Conveyor belt; 9. Unloading assembly; 10. Storage tray; 11. Contact lens placement cavity; 12. Lower encapsulation stage; 13. Top encapsulation stage; 14. Lower sealing film; 15. Top sealing film; 16. Bending line; 17. Longitudinal guide rail; 18. Hanging basket; 19. Drive motor; 20. Transverse slide rail. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figure 1-5 The device shown is a fusion molding injection device for a contact lens assembly cup, including an operating table 1; A material tray 2 is located on the upper left side of the control panel 1, a conveyor belt 8 is located on the right side of the material tray 2, and a storage tray 10 is located on the right side of the conveyor belt 8. A first layer of encapsulation 5 is provided on the upper left side of the conveyor belt 8, a puncture injection component 6 is provided on the right side of the first layer of encapsulation 5, a second layer of encapsulation 7 is provided on the right side of the puncture injection component 6, and a cup group 3 is arrayed inside the material tray 2.

[0023] A feeding component 4 is provided on the left side of the conveyor belt 8, and a discharging component 9 is provided on the right side of the conveyor belt 8.

[0024] A horizontal slide rail 20 is provided at the bottom of the feeding component 4, a drive motor 19 is provided above the horizontal slide rail 20, a longitudinal guide rail 17 is provided to the right of the drive motor 19, and a hanging basket 18 is provided at the bottom of the longitudinal guide rail 17.

[0025] The feeding assembly 4 slides laterally with the transverse slide rail 20, and the hanging basket 18 slides longitudinally with the longitudinal guide rail 17.

[0026] The bottom of the feeding assembly 9 is also equipped with a horizontal slide rail 20, a vertical guide rail 17, a drive motor 19, and a hanging basket 18, which corresponds to the cup group 3.

[0027] The cup group 3 has an array of contact lens placement cavities 11 inside, a lower encapsulation stage 12 above the contact lens placement cavity 11, and a top encapsulation stage 13 above the lower encapsulation stage 12.

[0028] The lower encapsulation stage 12 is sealed with a lower sealing film 14, and the upper encapsulation stage 13 is sealed with a upper sealing film 15.

[0029] The lower packaging stage 12 and the upper packaging stage 13 are provided with anti-slip textures, and the cup group 3 has an array of bending lines 1 inside.

[0030] This embodiment describes the specific implementation steps of a welding mold injection device for contact lens assembly cups. The drive motor 19 is started, and the feeding component 4 moves laterally on the transverse slide rail 20 to a suitable position above the material tray 2. The cooperation between the feeding component 4 and the transverse slide rail 20 allows for precise positioning above the cup group 3 in the material tray 2. The basket 18 slides downward along the longitudinal guide rail 17 until it reaches the position of the cup group 3 in the material tray 2 and picks up the cup group 3. Due to the longitudinal sliding cooperation between the basket 18 and the longitudinal guide rail 17, the height can be flexibly adjusted to adapt to different operating requirements. The drive motor 19 then drives the feeding component 4 to move laterally on the transverse slide rail 20. The basket 18, holding the cup assembly 3, moves laterally along the slide rail 20 to the top of the conveyor belt 8. The basket 18 descends along the longitudinal guide rail 17, smoothly placing the cup assembly 3 onto the conveyor belt 8, completing the loading action. The conveyor belt 8 starts, moving the cup assembly 3 placed on it to the right. The cup assembly 3 first moves to below the first layer of encapsulation 5. The first layer of encapsulation 5 performs the first layer of encapsulation on the lower encapsulation platform 12 in the cup assembly 3. At this time, the lower sealing film 14 begins to perform its sealing function. The cup assembly 3 continues to move with the conveyor belt 8. Upon reaching the area below the puncture and injection unit 6, the puncture and injection unit 6 injects the required liquid into the contact lens placement cavity 11 inside the cup assembly 3. After injection, the cup assembly 3 continues to move to the right below the second-layer encapsulation unit 7. The second-layer encapsulation unit 7 performs a second-layer encapsulation operation on the top-layer encapsulation platform 13 in the cup assembly 3, and the top-layer sealing film 15 completes the sealing action. At this point, the encapsulation and injection process of the cup assembly 3 is completed. The cup assembly 3, having completed encapsulation and injection, moves to the right side along the conveyor belt 8. At the unloading position, the unloading component 9 works in a similar manner to the loading component 4. The drive motor 19 at the bottom of the unloading component 9 drives it to move on the transverse slide rail 20 to the position of the cup group 3 above the conveyor belt 8. The basket 18 descends along the longitudinal guide rail 17 to grab the cup group 3. Then, the drive motor 19 drives the unloading component 9 to move on the transverse slide rail 20 to the position above the storage tray 10. The basket 18 descends along the longitudinal guide rail 17 to place the cup group 3 in the storage tray 10, thus completing the entire process of melting, molding, liquid injection, and production of the contact lens assembly cup.

[0031] like Figure 1 and Figure 2As shown, a first-layer encapsulation component 5 is located on the upper left side of the conveyor belt 8, a puncture injection component 6 is located on the right side of the first-layer encapsulation component 5, a second-layer encapsulation component 7 is located on the right side of the puncture injection component 6, a cup group 3 is arrayed inside the material tray 2, a feeding component 4 is located on the left side of the conveyor belt 8, a discharging component 9 is located on the right side of the conveyor belt 8, a transverse slide rail 20 is located at the bottom of the feeding component 4, a drive motor 19 is located above the transverse slide rail 20, a longitudinal guide rail 17 is located on the right side of the drive motor 19, and a hanging basket 18 is located at the bottom of the longitudinal guide rail 17. The feeding component 4 slides laterally with the transverse slide rail 20, and the hanging basket 18 slides longitudinally with the longitudinal guide rail 17. The bottom of the discharging component 9 is also provided with a transverse slide rail 20, a longitudinal guide rail 17, a drive motor 19, and a hanging basket 18, and the hanging basket 18 corresponds to the cup group 3.

[0032] Preferably, a feeding component 4 is provided on the left side of the conveyor belt 8. This component has a transverse slide rail 20 at the bottom, a drive motor 19 at the top, a longitudinal guide rail 17 on the right side, and a hanging basket 18 at the bottom. The feeding component 4 slides laterally along the transverse slide rail 20, and the hanging basket 18 slides longitudinally along the longitudinal guide rail 17. This design allows the feeding component 4 to move flexibly between the material tray 2 and the conveyor belt 8, accurately picking up the cup group 3 and placing it onto the conveyor belt 8, greatly improving feeding efficiency and accuracy. The unloading component 9 on the right side of the conveyor belt 8 has the same structure as the feeding component 4, also equipped with a transverse slide rail 20, a longitudinal guide rail 17, a drive motor 19, and a hanging basket 18. The hanging basket 18 corresponds to the cup group 3, making the unloading process similarly efficient as the feeding process. The system is accurate and can quickly transfer the cup assembly 3, which has completed liquid injection and sealing, from the conveyor belt 8 to the storage position, ensuring the smoothness of the production process. The first layer of sealing component 5, the puncture and liquid injection component 6, and the second layer of sealing component 7 are arranged sequentially above the conveyor belt 8, so that the cup assembly 3 can complete the lower layer sealing, liquid injection and top layer sealing operations in sequence during the transmission process. This ensures that the sealing and liquid injection process of each assembly cup is standardized and orderly, which is conducive to improving the stability of product quality. The feeding component 4 and the unloading component 9 have the same structure and use the same transverse slide rail 20, longitudinal guide rail 17, drive motor 19 and basket 18 and other components. This not only reduces the design and manufacturing difficulty of the equipment, but also facilitates the later maintenance and upkeep, and improves the overall reliability and economy of the equipment.

[0033] like Figure 1 and Figure 3-5 As shown, a contact lens placement cavity 11 is arranged in an array inside the cup assembly 3. A lower sealing platform 12 is arranged above the contact lens placement cavity 11. A top sealing platform 13 is arranged above the lower sealing platform 12. The lower sealing platform 12 is sealed with a lower sealing film 14, and the top sealing platform 13 is sealed with a top sealing film 15.

[0034] Preferably, the cup assembly 3 has an internal array of contact lens placement cavities 11. This layout can accommodate multiple contact lens placement areas within the limited space of the cup assembly, effectively improving the utilization rate of unit space and making it suitable for large-scale production needs. Through reasonable array arrangement, each contact lens placement cavity 11 can be kept independent while achieving a compact design, which helps to improve production efficiency. The lower sealing platform 12 and the top sealing platform 13 provide a double sealing structure for the contact lens placement cavity 11. The lower sealing film 14 is sealed on the lower sealing platform 12, and the top sealing film 15 is sealed on the top sealing platform 13. The two-layer sealing structure can better protect the items in the contact lens placement cavity 11, prevent the entry of external impurities, moisture and air, effectively extend the shelf life of the contact lenses in the placement cavity, and ensure product quality. The layered sealing platform design makes the sealing operation more convenient. In the production process, the lower sealing film 14 is first sealed on the lower sealing platform 12, and then the top sealing film 15 is sealed on the top sealing platform 13. This step-by-step sealing method conforms to the logic of the production process, which helps to improve the accuracy and efficiency of production and reduce errors in the production process.

[0035] like Figure 1-5 As shown, the lower packaging stage 12 and the upper packaging stage 13 are provided with anti-slip textures, and the cup group 3 has an array of bent lines 16 inside.

[0036] Optionally, the anti-slip textures on the lower sealing platform 12 and the top sealing platform 13 can effectively increase the friction between the sealing film and the sealing platform during the sealing process. When the lower sealing film 14 and the top sealing film 15 are sealed, the sealing film is less likely to slip between the sealing film and the sealing platform, thereby ensuring the accuracy of the sealing film position, making the sealing more secure and flat, improving the sealing quality, and reducing sealing defects caused by film displacement. The bending lines 16 arranged in the internal array of the cup group 3 play a key role when the cup group needs to be separated into individual contact lens assembly cups in the later stages of production. The structure at the bending lines 16 is relatively weak. Bending along the bending lines can easily and accurately separate the individual assembly cups. The separation process is simple and efficient, reducing cup damage caused by separation difficulties and improving the product yield. The setting of the bending lines 16 optimizes the overall structure of the cup group 3. It not only ensures the integrity and stability of the cup group during assembly and transportation, but also provides convenience for subsequent separation operations. The design of the cup group meets the needs of the early stage of production and is convenient for later use and handling, improving the practicality and functionality of the product.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A melting and molding injection device for contact lens assembly cups, comprising an operating table (1); A material tray (2) is provided on the upper left side of the operating table (1), a conveyor belt (8) is provided on the right side of the material tray (2), and a storage tray (10) is provided on the right side of the conveyor belt (8). Its features are: A first layer of encapsulation (5) is provided on the upper left side of the conveyor belt (8), a puncture injection component (6) is provided on the right side of the first layer of encapsulation (5), a second layer of encapsulation (7) is provided on the right side of the puncture injection component (6), and a cup group (3) is arranged in an array inside the material tray (2).

2. The melting and molding injection device for contact lens assembly cups according to claim 1, characterized in that: A feeding component (4) is provided on the left side of the conveyor belt (8), and a discharging component (9) is provided on the right side of the conveyor belt (8).

3. The fusion molding injection device for a contact lens assembly cup according to claim 2, characterized in that: The feeding assembly (4) is provided with a horizontal slide rail (20) at the bottom position, a drive motor (19) is provided above the horizontal slide rail (20), a longitudinal guide rail (17) is provided to the right of the drive motor (19), and a hanging basket (18) is provided at the bottom of the longitudinal guide rail (17).

4. The melting and molding injection device for contact lens assembly cups according to claim 3, characterized in that: The feeding assembly (4) slides laterally with the transverse slide rail (20), and the basket (18) slides longitudinally with the longitudinal guide rail (17).

5. The fusion molding injection device for a contact lens assembly cup according to claim 4, characterized in that: The bottom of the feeding assembly (9) is also provided with a horizontal slide rail (20), a vertical guide rail (17), a drive motor (19) and a basket (18), which corresponds to the cup group (3).

6. The fusion molding injection device for a contact lens assembly cup according to claim 1, characterized in that: The cup assembly (3) has an array of contact lens placement cavities (11) arranged inside, a lower encapsulation platform (12) is arranged above the contact lens placement cavity (11), and a top encapsulation platform (13) is arranged above the lower encapsulation platform (12).

7. The fusion molding injection device for a contact lens assembly cup according to claim 6, characterized in that: The lower packaging stage (12) is sealed with a lower sealing film (14), and the upper packaging stage (13) is sealed with a upper sealing film (15).

8. The fusion molding injection device for a contact lens assembly cup according to claim 7, characterized in that: The lower packaging platform (12) and the upper packaging platform (13) are provided with anti-slip textures, and the cup group (3) is provided with an array of bent lines (16) at its internal position.