Contact lens continuous online production method and production system thereof

Abstract

The invention provides a contact lens continuous online production method and a production system thereof, and belongs to the technical field of contact lens preparation. The problem of poor stability in the prior art is solved. The continuous online production method of the contact lenses comprises the following steps: A, adaptation preparation; b, module connection; and C, detecting and caching. The continuous online contact lens production system comprises a dry lens operation module, a wet lens operation module, a sterilization operation module and an outer packaging operation module, the output ends of the dry lens operation module, the wet lens operation module and the sterilization operation module are each provided with a transfer cache mechanism, and a material frame mechanism is arranged between every two adjacent modules. The transferring and caching mechanism can convey the semi-finished products from the previous module to the next adjacent module through the material frame mechanism according to the set conveying speed and conveying capacity. The production method is high in efficiency, and the system is compact in structure.

Description

Technical Field

[0001] The invention belongs to the technical field of contact lens preparation, and relates to a contact lens continuous online production method and a production system thereof. Background Art

[0002] The production of contact lenses is a complex and sophisticated process involving multiple steps and technologies to ensure the optical performance, comfort and safety of the lenses.

[0003] The contact lens manufacturing process includes the following steps: 1. Design and calculation 1. Prescription data: Obtain the patient’s refractive power, base curve, diameter and other parameters based on the ophthalmologist’s prescription.

[0004] 2. Computer-aided design (CAD): Use computer software to design lenses to ensure the optical performance and comfort of the lenses.

[0005] 2. Material preparation 1. Material selection: Select appropriate polymer materials, such as hydrogel or silicone hydrogel, based on the purpose and performance requirements of the lens.

[0006] 2. Pretreatment: Clean and dry the materials to ensure their purity and quality.

[0007] 3. Mold making 1. Mold design: Use computer-aided design (CAD) software to design the mold to ensure that the size, curvature and thickness of the lens meet the design requirements.

[0008] 2. Mold manufacturing: Use high-precision CNC machine tools to manufacture molds, which are usually made of metal (such as stainless steel) or high-precision plastic materials.

[0009] 3. Mold cleaning: Make sure the mold surface is clean and free of dust and contaminants.

[0010] 4. Glue injection 1. Glue injection equipment: Use high-precision glue injection equipment to inject liquid polymer materials into the mold.

[0011] 2. Glue injection amount control: Accurately control the glue injection amount to ensure consistent thickness and shape of the lens.

[0012] 3. Injection speed: Control the injection speed to avoid bubbles and uneven filling.

[0013] 5. Curing 1. Curing method: Select the appropriate curing method based on the characteristics of the material. Common methods include thermal curing and ultraviolet curing.

[0014] • Heat curing: The mold after injection is placed in an oven and the material is cured by heating.

[0015] • UV curing: The mold after injection is placed under ultraviolet light to cure the material.

[0016] 2. Curing time: Determine the appropriate curing time based on the material characteristics and curing method.

[0017] 6. Cooling 1. Cooling equipment: Take the cured mold out of the curing equipment and place it on a cooling rack or in a cooling equipment.

[0018] 2. Cooling time: Determine the appropriate cooling time based on the size of the mold and the characteristics of the material, usually 30 minutes to 1 hour.

[0019] 7. Shelling 1. Special tools: Use special shelling tools, such as tweezers, hooks, etc. to ensure the accuracy and safety of the operation.

[0020] 2. Manual method: For some small molds, you can use your fingers to gently press the edge of the mold to release the lens from the mold.

[0021] 3. Gentle operation: During the shelling process, be gentle to avoid damage to the lens.

[0022] 4. Inspection: After removing the lens, check whether there are cracks, scratches or damage to ensure the integrity of the lens.

[0023] 8. Cleaning and polishing 1. Cleaning: Use saline or special cleaning fluid to thoroughly clean the lens and remove any residue on the surface.

[0024] 2. Polishing: Polish the surface of the lens to ensure a smooth surface and improve optical performance.

[0025] IX. Quality Inspection 1. Optical testing: Use optical instruments to test the lens's diopter, base curve, diameter and other parameters to ensure that they meet the design requirements.

[0026] 2. Physical testing: testing the thickness, oxygen permeability, surface roughness and other physical properties of the lens.

[0027] 3. Biocompatibility testing: Conduct biocompatibility tests such as cytotoxicity and allergic reactions to ensure the safety of the lenses.

[0028] 10. Packaging and Sterilization 1. Packaging: Place qualified lenses into a sterile packaging bag and add an appropriate amount of preservation solution.

[0029] 2. Sterilization: The lenses are sterilized by ethylene oxide, radiation and other methods to ensure the sterility of the lenses.

[0030] It can be seen that in the above processes, injection molding is a dry operation module, cleaning and polishing are wet operation modules, and packaging and sterilization are external high-pressure operation modules.

[0031] In the existing production system, each module is an independent module, and the semi-finished products obtained after processing in the corresponding module are usually transported to the next processing module by AGV vehicles or manual transportation.

[0032] It can be seen that this operation mode has a relatively low efficiency, and accidents may occur during the AGV or manual handling operation, resulting in poor stability. Summary of the invention

[0033] The first object of the present invention is to provide a method for continuous online production of contact lenses in view of the above-mentioned problems existing in the prior art.

[0034] The second object of the present invention is to provide a production system used in the above-mentioned contact lens continuous online production method.

[0035] The first object of the present invention can be achieved by the following technical solutions: A method for continuous online production of contact lenses, wherein the continuous online production system for contact lenses comprises a dry film operation module, a wet film operation module, a sterilization operation module and an outsourcing operation module, wherein the method comprises the following steps: A. Adaptation preparation: Select the corresponding module according to the processing requirements of contact lenses; B. Module connection: a rack mechanism is set between two adjacent modules, and the two adjacent modules are connected and communicated through the rack mechanism, and several rack mechanisms connect several modules in series; C. Inspection and caching: When the semi-finished product enters the next adjacent module through the material rack mechanism from the setting module, the semi-finished product is inspected and cached. After inspection, unqualified semi-finished products are removed. Several modules are in continuous operation. The semi-finished products output from each module enter the corresponding cache area. After the semi-finished product is buffered in the cache area, the speed at which the semi-finished product enters the next module can be controlled; Furthermore, during the continuous operation of steps A to C, the products and / or semi-finished products are all circulated in a closed space, and the products and / or semi-finished products circulated in the closed space are in the continuous production process and do not flow back to the line after being offline.

[0036] The second object of the present invention can be achieved by the following technical solutions: A contact lens continuous online production system, the system comprises a dry film operation module, a wet film operation module, a sterilization operation module and an outsourcing operation module, characterized in that the output ends of the dry film operation module, the wet film operation module and the sterilization operation module are all provided with a transfer and buffer mechanism, and a plurality of adjacent modules are provided with a material rack mechanism, and the transfer and buffer mechanism can deliver the semi-finished product from the previous module to the adjacent next module through the material rack mechanism according to the set conveying speed and conveying volume.

[0037] In the above-mentioned contact lens continuous online production system, the dry film operation module, the wet film operation module, the sterilization operation module and the outsourcing operation module are all independent modules. Adjacent modules are connected by a rack mechanism and the rack mechanism can enable the semi-finished products to stably enter the next module adjacent to the previous module from the previous module.

[0038] In the above-mentioned contact lens continuous online production system, the dry film operation module includes a pad printing unit and a molding unit, and a material rack mechanism is provided between the pad printing unit and the molding unit to connect the two.

[0039] In the above-mentioned contact lens continuous online production system, the molding unit includes a glue injection work area, a curing work area and a shelling work area. The curing work area and the shelling work area are adjacent and centrally arranged. The curing work area is located between the glue injection work area and the shelling work area. There is a material rack mechanism between the pad printing unit and the glue injection work area and between the glue injection work area and the curing work area.

[0040] In the above-mentioned continuous online production system for contact lenses, the transfer and caching mechanism includes a feeding robot, a turntable and a discharging robot, and each module is provided with a bracket. The feeding robot, turntable and discharging robot are all connected to the corresponding bracket. The feeding robot and discharging robot are respectively located on both sides of the turntable, and the turntable is provided with a jig for storing semi-finished products.

[0041] In the above-mentioned contact lens continuous online production system, the number of the jigs is several, and the several jigs are evenly distributed on the upper part of the turntable in the circumferential direction.

[0042] In the above-mentioned contact lens continuous online production system, the bracket has a driving member for driving the turntable to rotate intermittently. Every time the turntable rotates intermittently, the feeding robot and the discharging robot can each face a corresponding fixture.

[0043] In the above-mentioned continuous online production system for contact lenses, the feeding robot is provided with a plurality of clamping parts one, each of which can clamp a corresponding semi-finished product, the fixture is provided with a positioning part which corresponds to the clamping parts one by one and is used to position the semi-finished product, and the above-mentioned discharging robot is provided with a plurality of clamping parts two, the number of which is the same as the number of the clamping parts one and is arranged one by one.

[0044] In the above-mentioned continuous online production system for contact lenses, the bracket is also provided with a detection mechanism and a rejection mechanism. After the turntable rotates intermittently, the jigs thereon can enter the detection mechanism one by one. When the detection mechanism detects that there are unqualified semi-finished products in the corresponding jig, the above-mentioned rejection mechanism can reject the corresponding unqualified products from the jig.

[0045] In the above-mentioned contact lens continuous online production system, the detection mechanism is a CCD industrial camera.

[0046] In the above-mentioned contact lens continuous online production system, the rejection mechanism includes a rejection robot and a waste channel. The above-mentioned rejection robot can move to the turntable fixture to grab the corresponding semi-finished product, and the rejection robot can put the grabbed semi-finished product into the waste channel.

[0047] Compared with the prior art, the present contact lens continuous online production method has each module in non-stop continuous operation. During the operation, the speed and quantity of semi-finished products entering the next module are controlled by caching, so that the entire system can continue to work uninterruptedly. Moreover, the material rack mechanism can quickly and stably deliver the semi-finished products to the next module. The entire normal method has high operating efficiency and relatively high operating stability.

[0048] At the same time, the contact lens continuous online production system is compact in structure because several modules are connected in series in sequence through the rack mechanism, and the semi-finished products can quickly enter the next module through the rack mechanism. Moreover, the transfer and buffer mechanism can effectively control the speed and quantity of the semi-finished products entering the next module. Therefore, during the uninterrupted and continuous operation of each module, the output of the semi-finished products can be controlled through the transfer and buffer mechanism, thereby ensuring that all modules can operate stably and continuously.

[0049] It can be seen that this system has the following advantages: 1. (Continuous production) The whole line is in continuous production, and each workstation operates continuously in the same time period according to the established process sequence, and the operation of the latter workstation is not affected by the previous workstation; 2. (Dynamic station configuration) The number of stations can be freely combined according to production needs to form a local assembly line; 3. (Quick changeover) Each workstation is equipped with auxiliary mechanical modules to achieve fast and convenient changeover operations; 4. (Isolation mechanism) Integrated intelligent detection and isolation mechanism, automatically identifies defective products and isolates them from the production process, preventing defective products from flowing back to subsequent processes; 5. (Multi-function WIP) For semi-finished product stations, set up an independent second unloading point to realize the local line-side caching function; 6. (Intelligent transportation) Intelligent online material rack system realizes efficient, accurate and automatic transportation of materials between workstations; 7. (Dedicated line for fixtures) Dedicated lines for fixtures are implemented through technologies such as RFID, and fixtures for different lines are not mixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a structural schematic diagram of the contact lens continuous online production system.

[0051] Figure 2 The present invention is a structural schematic diagram of a transfer and buffering mechanism in the continuous online contact lens production system.

[0052] In the figure, 1, dry film operation module; 1a, pad printing unit; 1b, molding unit; 1b1, glue injection operation area; 1b2, curing operation area; 1b3, shelling operation area; 2, wet film operation module; 3, sterilization operation module; 4, outsourcing operation module; 5, transfer and buffer mechanism; 5a, feeding robot; 5b, turntable; 5b1, fixture; 5c, discharging robot; 6, material rack mechanism; 7, detection mechanism; 8, rejection mechanism; 8a, rejection robot; 8b, waste channel. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0056] like Figure 1 and Figure 2 As shown, the contact lens continuous online production system includes a dry film operation module 1, a wet film operation module 2, a sterilization operation module 3 and an outsourcing operation module 4. The contact lens continuous online production method includes the following steps: A. Adaptation preparation: Select the corresponding module according to the processing requirements of contact lenses; B. Module connection: a rack mechanism 6 is provided between two adjacent modules, and the two adjacent modules are connected and communicated through the rack mechanism 6, and a plurality of rack mechanisms 6 connect a plurality of modules in series; C. Inspection and caching operations: When the semi-finished products enter the next adjacent module from the setting module through the material rack mechanism 6, the semi-finished products are inspected and cached. After inspection, unqualified semi-finished products are discarded. Several modules are in continuous operation. The semi-finished products output from each module enter the corresponding cache area. After the semi-finished products are buffered in the cache area, the speed at which the semi-finished products enter the next module can be controlled.

[0057] The present contact lens continuous online production system comprises a dry film operation module 1, a wet film operation module 2, a sterilization operation module 3 and an outsourcing operation module 4. The output ends of the dry film operation module 1, the wet film operation module 2 and the sterilization operation module 3 are all provided with a transfer and buffer mechanism 5, and a plurality of adjacent modules are provided with a material rack mechanism 6. The transfer and buffer mechanism 5 can deliver the semi-finished product from the previous module to the adjacent next module through the material rack mechanism 6 according to the set conveying speed and conveying volume.

[0058] The dry film operation module 1, the wet film operation module 2, the sterilization operation module 3 and the outsourcing operation module 4 are all independent modules. Adjacent modules are connected by a rack mechanism 6, and under the action of the rack mechanism 6, the semi-finished product can stably enter the next module adjacent to it from the previous module.

[0059] The dry film operation module 1 includes a pad printing unit 1a and a molding unit 1b, and a material rack mechanism is provided between the pad printing unit 1a and the molding unit 1b to connect the two.

[0060] The molding unit 1b includes a glue injection work area 1b1, a curing work area 1b2 and a shelling work area 1b3. The curing work area 1b2 and the shelling work area 1b3 are adjacent and centrally arranged. The curing work area 1b2 is located between the glue injection work area 1b1 and the shelling work area 1b3. A material rack mechanism 6 is provided between the pad printing unit 1a and the glue injection work area 1b1 and between the glue injection work area 1b1 and the curing work area 1b2.

[0061] Contact lens pad printing is a high-precision printing technology that is widely used to print text, patterns, trademarks and other information on contact lenses. This technology can ensure the clarity and durability of the printed content without affecting the optical performance and comfort of the contact lenses.

[0062] Contact lens molding or casting is an important step in the contact lens manufacturing process, which is mainly used to inject polymer materials (such as hydrogel or silicone hydrogel) into the mold and form the final contact lens through the curing process. This process ensures the accuracy, consistency and optical performance of the lens.

[0063] Contact lens demolding is an important step in the contact lens manufacturing process, which refers to the process of removing the cured contact lens from the mold. This step requires careful operation to ensure that the integrity and optical performance of the lens are not damaged.

[0064] Sterilization of contact lenses is an important step to ensure that the lenses are sterile before wearing, which is crucial to preventing eye infections and protecting the health of users. There are many methods for sterilizing contact lenses, including chemical sterilization, physical sterilization, and combined sterilization.

[0065] The outsourcing of contact lenses refers to the packaging of finished contact lenses, which not only protects the finished contact lenses, but also facilitates logistics and transportation.

[0066] Contact lens hydration is an important process that involves soaking contact lenses in saline or other appropriate solutions to allow them to absorb water and restore their softness and transparency, thereby ensuring comfort and safety during wearing.

[0067] The dry operation module 1 includes pad printing, glue injection, curing, and shelling processes, and the wet operation module includes a hydration process.

[0068] The sterilization operation module 3 is used for sterilizing the finished contact lenses, and the outsourcing operation module 4 is used for packaging the finished contact lenses.

[0069] Since the dry operation module 1 includes a plurality of independent processes, a material rack mechanism is also provided between adjacent processes of the module to connect adjacent processes and enable the semi-finished products in the module to be quickly transported between two adjacent processes.

[0070] Of course, each module or corresponding process is a continuous operation, so the previous module or process will continue to output semi-finished products. At this time, the transfer buffer mechanism 5 buffers a relatively large number of semi-finished products and only delivers a set amount of semi-finished products to the next process or module.

[0071] The transfer and caching mechanism 5 includes a feeding robot 5a, a turntable 5b and a discharging robot 5c, and each module is provided with a bracket. The feeding robot 5a, the turntable 5b and the discharging robot 5c are all connected to the corresponding bracket. The feeding robot 5a and the discharging robot 5c are respectively located on both sides of the turntable 5b, and the turntable 5b is provided with a fixture 5b1 for storing semi-finished products.

[0072] The feeding robot 5a clamps the semi-finished product at the previous process or module, and sends the clamped semi-finished product to the turntable 5b. After the turntable 5b rotates, the semi-finished product on it enters the discharging robot 5c, and the discharging robot 5c clamps the semi-finished product and sends it to the next process or module.

[0073] It can be seen that the feeding robot 5a is responsible for feeding the semi-finished product into the turntable 5b, and the discharging robot 5c is responsible for clamping the semi-finished product from the turntable 5b and feeding it into the corresponding process or module.

[0074] Of course, the turntable 5b will rotate intermittently, thereby further reducing the movement stroke of the feeding robot 5a and the discharging robot 5c.

[0075] There are a plurality of jigs 5b1, which are evenly distributed on the upper part of the turntable 5b in the circumferential direction.

[0076] Multiple fixtures 5b1 can store a larger number of semi-finished products, ultimately expanding the buffer capacity and being able to transport the semi-finished products at a lower or higher speed.

[0077] The bracket has a driving member for driving the turntable 5b to rotate intermittently. Every time the turntable 5b rotates intermittently, the feeding robot 5a and the discharging robot 5c can each face a corresponding fixture 5b1.

[0078] After the driving member drives the turntable 5b to rotate intermittently, the semi-finished products at the feeding robot 5a can be stably and quickly delivered to the discharging robot 5c.

[0079] The feeding robot 5a is provided with a plurality of clamping parts 1, each of which can clamp a corresponding semi-finished product, the fixture is provided with a positioning part which corresponds to the clamping parts one by one and is used to position the semi-finished product, and the discharging robot is provided with a plurality of clamping parts 2, the number of which is the same as the number of the clamping parts 1 and is arranged one by one.

[0080] The plurality of clamping parts 1 can clamp a plurality of semi-finished products at one time. Of course, the number of the clamping parts 2 and the positioning parts on the fixture is the same as the number of the clamping parts 1 and corresponds one to one.

[0081] Such a structure can transport multiple semi-finished products at one time.

[0082] The bracket also has a detection mechanism 7 and a rejection mechanism 8. After the turntable 5b rotates intermittently, the fixtures thereon can enter the detection mechanism 7 one by one. When the detection mechanism 7 detects that there are unqualified semi-finished products in the corresponding fixture 5b1, the above-mentioned rejection mechanism 8 can reject the corresponding unqualified products from the fixture 5b1.

[0083] The detection mechanism 7 is a CCD industrial camera.

[0084] CCD (Charge-Coupled Device) industrial cameras are high-performance image acquisition devices that are widely used in machine vision, automated testing, medical imaging, scientific research, and other fields. CCD industrial cameras convert light into electrical signals through photoelectric conversion technology, and then generate digital images through signal processing.

[0085] The CCD industrial camera can quickly and accurately detect whether the semi-finished products on the fixture are qualified products. Once unqualified semi-finished products are detected on the fixture, the rejection mechanism can quickly and accurately reject the unqualified products.

[0086] The rejecting mechanism 8 includes a rejecting robot 8a and a waste channel 8b. The rejecting robot 8a can move to the jig 5b1 of the turntable 5b to grab the corresponding semi-finished product, and the rejecting robot 8a can put the grabbed semi-finished product into the waste channel 8b.

[0087] The rejecting robot 8a clamps the unqualified semi-finished products on the fixture 5b1 and sends them to the waste channel 8b. The waste channel 8b sends the unqualified products to the corresponding waste collection place.

[0088] In order to make the unqualified semi-finished products pass through the waste channel 8b stably, two solutions can be adopted: First, the waste channel 8b is inclined, and unqualified semi-finished products slide steadily along the inclined waste channel; Secondly, the waste channel 8b is provided with a movable conveyor belt, and unqualified semi-finished products are stably output along the movable conveyor belt.

[0089] In this contact lens continuous online production method, since each module is in non-stop continuous operation, the speed and quantity of semi-finished products entering the next module are controlled by caching during the operation, so that the entire system can continue to work uninterruptedly. Moreover, the material rack mechanism can quickly and stably deliver the semi-finished products to the next module. The entire normal method has high operating efficiency and relatively high operating stability.

[0090] At the same time, the contact lens continuous online production system is compact in structure because several modules are connected in series in sequence through the rack mechanism, and the semi-finished products can quickly enter the next module through the rack mechanism. Moreover, the transfer and buffer mechanism can effectively control the speed and quantity of the semi-finished products entering the next module. Therefore, during the uninterrupted and continuous operation of each module, the output of the semi-finished products can be controlled through the transfer and buffer mechanism, thereby ensuring that all modules can operate stably and continuously.

[0091] It can be seen that this production system is a continuous production system throughout the entire process, and no logistics circulation is required during the operation. Moreover, the entire system is a fully closed process, and there will be no mixing or material leakage during the operation, making the entire system operation safer and more stable.

[0092] The material rack mechanism is a conveying track capable of conveying semi-finished products. One end of the conveying track is connected to the output end of one of the modules, and the other end of the conveying track is connected to the input end of another adjacent module.

[0093] In addition, an injection molding island for molding contact lens shell molds is provided at the front end of the dry film operation module 1. The injection molding island can be connected to the line body to reduce the inventory reserve of the shell mold, or independently arranged as an injection molding island group to form a layout for centralized supply of multiple line body shell molds.

[0094] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A method for continuous online production of contact lenses, wherein the continuous online production system for contact lenses comprises a dry film operation module (1), a wet film operation module (2), a sterilization operation module (3) and an outsourcing operation module (4), characterized in that: The method comprises the following steps: A. Adaptation preparation: Select the corresponding module according to the processing requirements of contact lenses; B. Module connection: a rack mechanism is set between two adjacent modules, and the two adjacent modules are connected and communicated through the rack mechanism, and several rack mechanisms connect several modules in series; C. Inspection and caching: When the semi-finished product enters the next adjacent module through the material rack mechanism from the setting module, the semi-finished product is inspected and cached. After inspection, unqualified semi-finished products are removed. Several modules are in continuous operation. The semi-finished products output from each module enter the corresponding cache area. After the semi-finished product is buffered in the cache area, the speed at which the semi-finished product enters the next module can be controlled; Furthermore, during the continuous operation of steps A to C, the products and / or semi-finished products are all circulated in a closed space, and the products and / or semi-finished products circulated in the closed space are in the continuous production process and do not flow back to the line after being offline.

2. The contact lens continuous online production system according to claim 1 comprises a dry film operation module (1), a wet film operation module (2), a sterilization operation module (3) and an outsourcing operation module (4), characterized in that: The output ends of the dry film operation module (1), the wet film operation module (2) and the sterilization operation module (3) are each provided with a transfer and buffer mechanism (5), and a plurality of adjacent modules are each provided with a material rack mechanism (6). The transfer and buffer mechanism (5) can deliver the semi-finished product from the previous module to the adjacent next module through the material rack mechanism (6) according to a set delivery speed and delivery volume.

3. The contact lens continuous online production system according to claim 2, characterized in that: The dry film operation module (1), the wet film operation module (2), the sterilization operation module (3) and the outsourcing operation module (4) are all independent modules. Adjacent modules are connected by a material rack mechanism (6) and the material rack mechanism (6) enables the semi-finished product to stably enter the next module adjacent to the previous module from the previous module.

4. The contact lens continuous online production system according to claim 3, characterized in that: The dry film operation module (1) comprises a pad printing unit (1a) and a molding unit (1b), and a material rack mechanism (6) is provided between the pad printing unit (1a) and the molding unit (1b) to connect the two.

5. The contact lens continuous online production system according to claim 4, characterized in that: The molding unit (1b) comprises a glue injection operation area (1b1), a curing operation area (1b2) and a shelling operation area (1b3); the curing operation area (1b2) and the shelling operation area (1b3) are adjacent to and centrally arranged; the curing operation area (1b2) is located between the glue injection operation area (1b1) and the shelling operation area (1b3); and a material rack mechanism (6) is provided between the pad printing unit (1a) and the glue injection operation area (1b1) and between the glue injection operation area (1b1) and the curing operation area (1b2).

6. The contact lens continuous online production system according to claim 5, characterized in that: The transfer and caching mechanism (5) comprises a feeding robot (5a), a turntable (5b) and a discharging robot (5c), each module having a bracket, the feeding robot (5a), the turntable (5b) and the discharging robot (5c) are all connected to the corresponding bracket, the feeding robot (5a) and the discharging robot (5c) are respectively located on both sides of the turntable (5b), and the turntable (5b) has a fixture (5b1) for storing semi-finished products.

7. The contact lens continuous online production system according to claim 6, characterized in that: The number of the jigs (5b1) is a plurality, and the plurality of jigs (5b1) are evenly distributed in the circumferential direction on the upper part of the turntable (5b).

8. The contact lens continuous online production system according to claim 7, characterized in that: The bracket has a driving member for driving the turntable (5b) to rotate intermittently. Each time the turntable (5b) rotates intermittently, the feeding robot (5a) and the discharging robot (5b) can each face a corresponding fixture (5b1).

9. The contact lens continuous online production system according to claim 8, characterized in that: The feeding robot (5a) is provided with a plurality of clamping parts one, each clamping part one can clamp a corresponding semi-finished product, the fixture is provided with a positioning part corresponding to the clamping parts one by one and used for positioning the semi-finished product, and the discharging robot is provided with a plurality of clamping parts two, the number of the clamping parts two is the same as the number of the clamping parts one and they are arranged in a one-to-one correspondence.

10. The contact lens continuous online production system according to claim 9, characterized in that: The support is also provided with a detection mechanism (7) and a rejection mechanism (8); after the turntable (5b) rotates intermittently, the jigs (5b1) thereon can enter the detection mechanism (7) one by one; when the detection mechanism (7) detects that the corresponding jig (5b1) contains unqualified semi-finished products, the rejection mechanism can reject the corresponding unqualified products from the jig (5b1).

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