Contact lens mold system

Abstract

The utility model provides a mold system for contact lenses, and belongs to the technical field of machinery. The problem that in the prior art, applicability is poor is solved. The mold system of the contact lenses comprises a rack, a male shell mold and at least two female shell molds, and is characterized in that the mold system further comprises a transfer mechanism, the transfer mechanism, the male shell mold and the female shell molds are all connected to the rack, the male shell mold is provided with a plurality of first mold holes, and the number of the female shell molds is at least two. Each female shell mold is provided with a plurality of second mold holes, and the transfer mechanism can pre-assemble and mold the semi-finished products A moved out of the first mold holes and the semi-finished products B moved out of the second mold holes. The mold system for the contact lenses is high in applicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical technical field relates to a mould system of contact lens. BACKGROUND

[0002] At present, the shell film production of contact lens is generally offline inventory production, that is, the male and female shell films are produced respectively, and then are placed for a period of time before being freely combined according to production requirements to support the molding of the lens. The matching precision of the male and female shell films is easily affected by factors such as molding machine, film mold type, film hole number, and placement time, and thus is prone to defects.

[0003] The defects of the contact lens can be found only after the molded lens is inspected. After the above-mentioned situation occurs, the defects can be eliminated by replacing the film hole combination. However, this method consumes a large amount of manpower and material resources, and thus results in a low actual operation efficiency. SUMMARY

[0004] The utility model aims at the above-mentioned problems existing in the prior art, and provides a mold system of contact lens, which has high applicability and compact structure.

[0005] The purpose of the utility model can be achieved by the following technical solutions.

[0006] A mold system of contact lens comprises a rack, a male shell mold, and a female shell mold, characterized in that the mold system further comprises a transfer mechanism, the transfer mechanism, the male shell mold, and the female shell mold are connected to the rack, the male shell mold is provided with a plurality of mold cavities one, the number of the female shell molds is at least two, each female shell mold is provided with a plurality of mold cavities two, and the transfer mechanism can pre-assemble a semi-finished product A removed from the mold cavities one and a semi-finished product B removed from the mold cavities two.

[0007] In the mold system of contact lens, the transfer mechanism is an assembly robot, the rack is further provided with an assembly part for assembling the semi-finished product A and the semi-finished product B, and the assembly robot can send the corresponding semi-finished products to the assembly part.

[0008] In the mold system of contact lens, the number of the female shell molds is two, that is, a mold body one and a mold body two, and the mold body one and the mold body two are connected to the rack at the two sides of the transfer mechanism.

[0009] In the mold system of contact lens, the number of the mold cavities one on the male shell mold is even, the number of the mold cavities two on the mold body one is the same as that of the mold cavities two on the mold body two, and the number of the mold cavities two on the mold body one is 1 / 2 of the number of the mold cavities one on the male shell mold.

[0010] In the mold system of the contact lens as described above, the mold body one, the transfer mechanism and the mold body two are arranged from left to right on the rack, the male shell mold is in a strip shape, the mold body one and the mold body two are located at the side of the male shell mold, and the mold body one and the mold body two are respectively located on the rack at both ends of the male shell mold, and the transfer mechanism is located on the rack between the mold body one and the mold body two.

[0011] In the mold system of the contact lens as described above, the male shell mold is provided with the unloading manipulator one, and the unloading manipulator one can clamp and send the semi-finished product A at the male shell mold to the assembly manipulator.

[0012] In the mold system of the contact lens as described above, the mold body one and the mold body two are provided with the unloading manipulator two, and the unloading manipulator two can clamp and send the semi-finished product B at the mold body one or the mold body two to the assembly manipulator.

[0013] In the mold system of the contact lens as described above, the mold body one and the mold body two are independent molds.

[0014] In the mold system of the contact lens as described above, the number of the mold cavities one on the male shell mold is 10-50.

[0015] In the mold system of the contact lens as described above, the number of the mold cavities two on the mold body one is the same as the number of the mold cavities two on the mold body two, and the number is 5-25.

[0016] Compared with the prior art, the mold system of the contact lens has the following advantages:

[0017] 1. The mold system is combined with the injection molding machine and the constraint machine table, one combination corresponds to one production line, and the applicability is relatively high.

[0018] 2. Multiple groups of products can be produced in unit time, and when the injection molding machine of the mother film needs to switch varieties or abnormity occurs, it does not affect the normal production of other machine tables in the combination;

[0019] 3. The injection molding film is provided with a unique number according to the mold cavities of the male and female shell films, forming a unique film cavity combination A1-B1, A2-B2, …, and when the film cavity combination produces a defect, the problem film can be quickly located;

[0020] 4. The male and female shell films produced are unloaded by the unloading manipulator, and the unloading stability is high;

[0021] 5. The male and female shell films can be immediately supplied to the production line by AGV or other tools after being combined, or temporarily stored in the line side warehouse, further improving the applicability;

[0022] 6. Different combinations of equipment and equipment quantities can be formed according to the required production rhythm to maximize the benefit, and the operation efficiency is relatively high, and the stability is also relatively high. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the mold system for this contact lens.

[0024] Figure 2 This is a schematic diagram of a continuous online production system for contact lenses.

[0025] In the diagram, 1. Dry film processing module; 1a. Pad printing unit; 1b. Molding unit; 1b1. Glue injection area; 1b2. Curing area; 1b3. Peeling area; 2. Wet film processing module; 3. Sterilization module; 4. Outsourcing module; 5. Transfer and buffer mechanism; 5a. Feeding robot; 5b. Turntable; 5b1. Fixture; 5c. Discharge robot; 6. Material rack mechanism; 7. Frame; 8. Male shell mold; 9. Mold body one; 10. Mold body two; 11. Assembly robot. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] like Figure 1 and Figure 2As shown, the mold system of the contact lens comprises a frame 7, a male mold 8 and a female mold, the mold system further comprises a transfer mechanism, the transfer mechanism, the male mold 8 and the female mold are connected to the frame 7, the male mold 8 has a plurality of mold cavities one, the number of the female mold is at least two, each female mold has a plurality of mold cavities two, and the transfer mechanism can pre-assemble the semi-finished product A removed from the mold cavity one and the semi-finished product B removed from the mold cavity two.

[0030] The transfer mechanism is an assembly robot 11, and the frame 7 further has an assembly part for assembling the semi-finished product A and the semi-finished product B, and the assembly robot 11 can send the corresponding semi-finished product to the assembly part.

[0031] The assembly part is a device for assembling the semi-finished product A and the semi-finished product B, and therefore the specific technical features of the assembly part are not described in detail in the embodiment.

[0032] As can be seen, the assembly part can make the assembly operation not need to be performed outside the system, and the assembly operation can be directly performed in the system.

[0033] The number of the female mold is two: mold body one 9 and mold body two 10, and the mold body one 9 and the mold body two 10 are connected to the frame 7 at both sides of the transfer mechanism.

[0034] The number of the mold cavities one on the male mold 8 is even, the number of the mold cavities two on the mold body one 9 is the same as the number of the mold cavities two on the mold body two 10, and the number of the mold cavities two on the mold body one 9 is 1 / 2 of the number of the mold cavities one on the male mold 8.

[0035] The mold body one 9, the transfer mechanism and the mold body two 10 are arranged from left to right on the frame 7, the male mold 8 is in a strip shape, the mold body one 9 and the mold body two 10 are located at the side of the male mold 8, the mold body one 9 and the mold body two 10 are located on the frame 7 at both ends of the male mold 8, and the transfer mechanism is located on the frame 7 between the mold body one 9 and the mold body two 10.

[0036] Such a structure can make the semi-finished product A removed from the mold body one 9 quickly and stably enter the transfer mechanism, and at the same time, the semi-finished product B removed from the mold body two 10 quickly and stably enter the transfer mechanism.

[0037] The male mold 8 has a feeding robot one, and the feeding robot one can clamp and send the semi-finished product A at the male mold 8 to the assembly robot 11.

[0038] The mold body one 9 and the mold body two 10 each have a feeding robot two, and the feeding robot two can clamp and send the semi-finished product B at the mold body one 9 or the mold body two 10 to the assembly robot 11.

[0039] Under the action of the first and second unloading manipulators, the semi-finished products A and B can stably enter the transfer mechanism.

[0040] The first and second unloading manipulators and the assembly manipulator are prior art, and thus the specific technical features of the manipulators are not described herein.

[0041] The mold body one 9 and the mold body two 10 are independent molds.

[0042] The number of the mold cavities one in the male shell mold 8 is 32, and the number of the mold cavities one can be 10 or 40 according to actual conditions.

[0043] The number of the mold cavities two on the mold body one 9 is the same as that on the mold body two 10, and the number is 16, and the number of the mold cavities two can be 5 or 10 according to actual conditions.

[0044] Specifically,

[0045] The number of the mold cavities one in the male shell mold 8 is 32, and the number of the mold cavities one can be 10 or 40 according to actual conditions.

[0046] Meanwhile, the male shell mold 8 has two independent injection units, and the two injection units do not affect each other, one of which is opposite to the mold cavities one numbered A01-A16, and the other injection unit is opposite to the other batch of mold cavities one numbered A17-A32.

[0047] The mold body one 9 contains 16 mold cavities two, numbered B01-B16;

[0048] The mold body two 10 contains 16 mold cavities two, numbered C01-C16.

[0049] The system has the following three modes of operation:

[0050] Mode one: the male shell mold 8 and the mold body one 9 work synchronously, the mold cavities one numbered A01-A16 are matched with the mold cavities two numbered B01-B16, and the transfer mechanism pre-assembles the corresponding semi-finished products at the matched mold cavities, at this time the production line is in a semi-open mode;

[0051] Mode two: the male shell mold 8 and the mold body two 10 work synchronously, the mold cavities one numbered A17-A32 are matched with the mold cavities two numbered C01-C16, and the transfer mechanism pre-assembles the corresponding semi-finished products at the matched mold cavities, at this time the production line is in a semi-open mode;

[0052] Mode three: the male shell mold 8 and the mold body one 9 and the mold body two 10 work synchronously, the mold cavity one numbered A01-A16 matches the mold cavity two numbered B01-B16, the mold cavity one numbered A17-A32 matches the mold cavity two numbered C01-C16, the transfer mechanism pre-assembles the above-mentioned semi-finished product, at this time the production line is in full open mode.

[0053] The specific actions of mode switching to mode two are as follows:

[0054] The male shell mold 8 keeps working, the mold body one 9 stops, before switching, the mold body two 10 prepares for production, provides the required mold, raw material and switches the movement route of the transfer mechanism, after that, the mold body two 10 works and matches the corresponding mold cavity on the male shell mold 8, completes the mode switching, in this process, A always keeps working without stopping.

[0055] This case is mainly suitable for corresponding operation when B fails or product model is changed.

[0056] The mold system of the contact lens is arranged in a contact lens continuous online production system. The contact lens continuous online production system comprises a dry sheet operation module 1, a wet sheet operation module 2, a sterilization operation module 3 and an outer package operation module 4, and the contact lens continuous online production method comprises the following steps:

[0057] A. Adaptation preparation: selecting the corresponding module according to the processing requirements of the contact lens;

[0058] B. Module connection: arranging a rack mechanism 6 between two adjacent modules, connecting and communicating between the two adjacent modules through the rack mechanism 6, and connecting a plurality of modules in series through a plurality of rack mechanisms 6;

[0059] C. Detection and buffering operation: detecting and buffering the semi-finished product when the semi-finished product enters the next module through the rack mechanism 6, removing the unqualified semi-finished product after detection, a plurality of modules being in continuous operation, the semi-finished product output by each module entering the corresponding buffer area, and the semi-finished product being able to control the speed of entering the next module after buffering treatment in the buffer area.

[0060] The contact lens continuous online production system comprises a dry sheet operation module 1, a wet sheet operation module 2, a sterilization operation module 3 and an outer package operation module 4, the output end of each of the dry sheet operation module 1, the wet sheet operation module 2 and the sterilization operation module 3 is provided with a transfer buffer mechanism 5, a rack mechanism 6 is arranged between a plurality of adjacent modules, and the transfer buffer mechanism 5 can send the semi-finished product from the previous module to the next adjacent module through the rack mechanism 6 according to the set conveying speed and conveying amount.

[0061] The dry sheet operation module 1, the wet sheet operation module 2, the sterilization operation module 3 and the packaging operation module 4 are all independent modules, and adjacent modules are connected by the rack mechanism 6 and can make the semi-finished product enter the next module stably under the action of the rack mechanism 6.

[0062] The dry sheet operation module 1 includes a pad printing unit 1a and a molding unit 1b, and the pad printing unit 1a and the molding unit 1b are connected by the rack mechanism.

[0063] The molding unit 1b includes a glue injection operation area 1b1, a curing operation area 1b2 and a shell stripping operation area 1b3, the curing operation area 1b2 and the shell stripping operation area 1b3 are adjacent and centrally arranged, the curing operation area 1b2 is located between the glue injection operation area 1b1 and the shell stripping operation area 1b3, and the pad printing unit 1a and the glue injection operation area 1b1 and the glue injection operation area 1b1 and the curing operation area 1b2 are all provided with the rack mechanism 6.

[0064] Pad printing of contact lenses is a high-precision printing technology widely used for printing text, patterns, trademarks and other information on contact lenses. This technology can ensure the clarity and durability of the printed content, while not affecting the optical performance and comfort of the contact lenses.

[0065] Molding or casting of contact lenses is an important step in the manufacturing process of contact lenses, mainly used for injecting high-molecular materials such as hydrogel or silicone hydrogel into molds, and forming the final contact lens through the curing process. This process ensures the accuracy, consistency and optical performance of the lens.

[0066] Demolding of contact lenses is an important step in the manufacturing process of contact lenses, which refers to the process of removing the solidified contact lenses from the mold. This step requires careful operation to ensure the integrity and optical performance of the lens are not damaged.

[0067] Sterilization of contact lenses is an important step to ensure the sterility of the lenses before wearing, which is crucial for preventing eye infections and ensuring user health. There are various methods of sterilizing contact lenses, including chemical sterilization, physical sterilization and combined sterilization.

[0068] Packaging of contact lenses refers to the packaging of finished contact lenses, which not only protects the finished contact lenses, but also facilitates logistics transportation.

[0069] Hydration of contact lenses is an important process that involves soaking the contact lenses in physiological saline or other appropriate solutions to absorb water, restore softness and transparency, and ensure comfort and safety when worn.

[0070] The dry operation module 1 comprises pad printing, glue injection, curing and shell peeling processes, and the wet operation module is a hydration process.

[0071] The sterilization operation module 3 is used for sterilizing the finished contact lenses, and the packaging operation module 4 is used for packaging the finished contact lenses.

[0072] Since the dry operation module 1 comprises multiple independent processes, a rack mechanism is arranged between adjacent processes in the module, which can connect the adjacent processes and quickly transport the semi-finished products between the two adjacent processes in the module.

[0073] Of course, each module or corresponding process is continuously operated, so that the semi-finished products are continuously and uninterruptedly output at the previous module or process. At this time, the transfer buffer mechanism 5 buffers a large number of semi-finished products, and only a certain amount of semi-finished products is transported to the next process or module.

[0074] Obviously, the mold system of the contact lenses is arranged at the dry operation module of the contact lens continuous online production system.

[0075] The technical features of the above embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0076] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation of the present application, and as long as the above embodiments are appropriately changed and changed within the scope of the essential spirit of the present application, they fall within the scope of the present application.

Claims

1. A system of molds for contact lenses comprising a machine frame (7), a male shell mold (8) and a female shell mold, characterized in that, The mold system further comprises a transfer mechanism, the transfer mechanism, the male mold (8) and the female mold are connected on the frame (7), the male mold (8) has a plurality of mold cavities one, the number of the female mold is at least two, each female mold has a plurality of mold cavities two, the transfer mechanism can pre-assemble the semi-finished product A removed from the mold cavity one and the semi-finished product B removed from the mold cavity two.

2. The contact lens mold system of claim 1, wherein, The transfer mechanism is an assembly robot (11), the frame further has an assembly part for assembling the semi-finished product A and the semi-finished product B, and the assembly robot (11) can send the corresponding semi-finished product to the assembly part.

3. The contact lens mold system of claim 2, wherein, The number of the female mold is two: mold body one (9) and mold body two (10), and the mold body one (9) and the mold body two (10) are connected on the frame (7) on both sides of the transfer mechanism.

4. The contact lens mold system of claim 3, wherein, The number of the mold cavities one on the male mold (8) is even, the number of the mold cavities two on the mold body one (9) and the mold cavities two on the mold body two (10) is the same, and the number of the mold cavities two on the mold body one (9) is half of the number of the mold cavities one on the male mold (8).

5. The contact lens mold system of claim 4, wherein, The mold body one (9), the transfer mechanism and the mold body two (10) are arranged from left to right on the frame (7), the male mold (8) is in a strip shape, the mold body one (9) and the mold body two (10) are located on the side of the male mold (8), the mold body one (9) and the mold body two (10) are located on the frame (7) at both ends of the male mold (8), and the transfer mechanism is located on the frame (7) between the mold body one (9) and the mold body two (10).

6. The contact lens mold system of claim 5, wherein, The male mold (8) has a blanking robot one, and the blanking robot one can clamp and send the semi-finished product A at the male mold (8) to the assembly robot.

7. The contact lens mold system of claim 6, wherein, The mold body one (9) and the mold body two (10) each have a blanking robot two, and the blanking robot two can clamp and send the semi-finished product B at the mold body one (9) or the mold body two (10) to the assembly robot (11).

8. The contact lens mold system of claim 7, wherein, The mold body one (9) and the mold body two (10) are independent molds.

9. The contact lens mold system of claim 8, wherein, The number of the mold cavities one on the male mold (8) is 10-50.

10. The contact lens mold system of claim 9, wherein, The number of the mold cavities two on the mold body one (9) and the number of the mold cavities two on the mold body two (10) are the same, and the number is 5-25.

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