Dry contact lens taking device

Abstract

The utility model relates to the technical field of contact lens automatic production, in particular to a contact lens dry piece taking device which comprises a piece taking carrying plate, an upper mold processing mechanism, an upper mold removing mechanism and a dry piece transferring mechanism. The upper die loaded with the dry sheet is placed on the sheet taking carrier plate, the upper die removing mechanism pushes the upper die to abut against the upper die processing mechanism, and the upper die is continuously extruded to be separated from the dry sheet; the dry sheet transferring mechanism picks up and transfers the demolded dry sheet, and the upper mold processing mechanism pushes the demolded upper mold away from the sheet taking carrier plate; according to the dry contact lens taking device, the upper mold removing mechanism is matched with the upper mold processing mechanism to position the upper mold together and extrude and deform the upper mold, so that batch dry lens removing is realized; rapid sheet taking and mold excess material cleaning actions are realized through the dry sheet transferring mechanism and the upper mold processing mechanism; the time cost of manual contact lens taking and the waste contact lens cost are integrally reduced, automatic dry contact lens taking operation is achieved, and the overall processing efficiency of the dry contact lenses is improved.

Description

Technical Field

[0001] This utility model relates to the field of automated contact lens production technology, specifically a dry contact lens extraction device. Background Technology

[0002] In the production process of dry contact lenses, liquid is injected into the lower mold and then molded together with the upper mold. After the molding and curing, the upper and lower molds need to be opened to separate the lens from the mold and remove the complete contact lens (dry lens).

[0003] In the production stage of demolding and separating dry sheets, manual or semi-automatic demolding is usually used. This method results in high labor intensity for workers, low production efficiency, and easy damage and contamination of dry sheets. The yield and pass rate are both low, which cannot meet market demand. Therefore, a solution is urgently needed. Utility Model Content

[0004] The purpose of this invention is to provide a contact lens dry lens removal device that rapidly extrudes and demolds an upper mold containing dry lenses, thereby improving the processing efficiency of contact lens dry lenses.

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

[0006] A dry contact lens removal device includes a lens removal plate for placing a plurality of upper molds carrying dry lenses, an upper mold processing mechanism for blocking and pushing the upper molds, an upper mold removal mechanism for squeezing the upper molds to separate the upper molds from the dry lenses, and a dry lens transfer mechanism for picking up and transferring the dry lenses after demolding.

[0007] During operation, the upper mold carrying the dry film is placed at the film-retrieving carrier plate. The upper mold release mechanism pushes the upper mold against the upper mold processing mechanism. The upper mold release mechanism continuously squeezes the upper mold to separate it from the dry film. The dry film transfer mechanism picks up and transfers the demolded dry film, and the upper mold processing mechanism pushes the demolded upper mold away from the film-retrieving carrier plate.

[0008] The plate being picked up has multiple upper mold slots for placing the upper mold; the upper mold removal mechanism includes an upper mold drive device and an extrusion push plate that is driven and connected to the execution end of the upper mold drive device; the edge of the extrusion push plate is provided with extrusion teeth.

[0009] When separating the upper die from the dry sheet, the top die drive device drives the extrusion pusher to move the upper die carrying the dry sheet in the upper die groove, and pushes the upper die carrying the dry sheet to the upper die processing mechanism and continuously applies pressure until the upper die and the dry sheet are separated.

[0010] The dry film transfer mechanism includes a transfer displacement driving device, a transfer rotation driving device driven by the execution end of the transfer displacement driving device, and a transfer tooling driven by the execution end of the transfer rotation driving device.

[0011] When transferring dry sheets, the transfer displacement drive device drives the transfer rotation drive device, which in turn moves the transfer fixture to the sheet picking plate, picks up the demolded dry sheets and transfers them out of the sheet picking plate; during the picking and transferring process, the transfer rotation drive device drives the transfer fixture to rotate so that the transfer fixture can accurately pick up and place the sheets.

[0012] The upper mold processing mechanism includes an upper mold processing drive device and an upper mold connecting plate that is driven and connected to the execution end of the upper mold processing drive device; the upper mold connecting plate is provided with a positioning tooth plate at its end.

[0013] The upper mold release mechanism pushes and presses the upper mold carrying the dry film against the positioning tooth plate, and continues to squeeze until the upper mold separates from the dry film; the upper mold processing drive device drives the upper mold connecting plate to move the positioning tooth plate after the upper mold is separated from the dry film, so that the upper mold leaves the film taking plate.

[0014] The platen receiving area is also equipped with an upper mold receiving hopper. The upper mold processing drive device drives the upper mold connecting plate to move the positioning tooth plate to push the upper mold after the dry sheet is separated into the receiving hopper.

[0015] This also includes a shaping mechanism, and a shaping lifting mechanism that drives the shaping mechanism to rise and fall;

[0016] When the upper mold carrying the dry sheet is pressed against the upper mold processing mechanism, the shaping and lifting mechanism drives the shaping mechanism to rise and fall, so that the execution end of the shaping mechanism passes through the sheet-taking plate and extends into the inner concave surface of the upper mold.

[0017] The sample carrier plate is provided with shaping holes to facilitate the passage of the shaping mechanism.

[0018] The shaping mechanism includes a shaping rod and a rotary drive device for driving the shaping rod to rotate; the output end of the rotary drive device is connected to several shaping rods, and the rotary drive device drives the shaping rods that extend into the concave surface of the upper mold to rotate.

[0019] This includes a lifting guide rod, and the actuator of the shaping lifting mechanism drives the shaping mechanism to slide up and down on the lifting guide rod.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] In practical use, the sheet-removing carrier plate is used to place the upper mold containing the dry sheet that has been separated from the lower mold. The upper mold release mechanism pushes the upper mold to abut against the upper mold processing mechanism and continuously pushes and squeezes the upper mold, causing it to deform to a certain extent so as to separate it from the dry sheet applied on it. The dry sheet transfer mechanism picks up the dry sheet that has been separated from the upper mold and transfers it out of the sheet-removing carrier plate. The upper mold processing mechanism pushes out the remaining material of the upper mold that has been separated from the dry sheet from the sheet-removing carrier plate, leaving a place to wait for the next sheet-removing operation.

[0022] This dry contact lens extraction device has a compact overall structure. The upper mold removal mechanism, together with the upper mold processing mechanism, positions and deforms the upper mold to separate the upper mold from the dry lens, enabling batch extraction of dry lenses. The dry lens transfer mechanism and the upper mold processing mechanism quickly transport the separated dry lenses and upper molds out of the extraction carrier plate, achieving rapid extraction and cleaning of mold residue. This reduces the time cost of manual extraction, automates the dry lens extraction process, and improves the overall processing efficiency of dry contact lenses. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the partially concealed structure of this utility model. Detailed Implementation

[0025] 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.

[0026] refer to Figure 1-2 As shown, a dry contact lens removal device includes a lens removal plate 710 for placing a plurality of upper molds carrying dry lenses, an upper mold processing mechanism 720 for blocking and pushing the upper molds, an upper mold removal mechanism 740 for squeezing the upper molds to separate the upper molds from the dry lenses, and a dry lens transfer mechanism 730 for picking up and transferring the dry lenses after demolding.

[0027] During operation, the upper mold carrying the dry film is placed at the film receiving plate 710. The upper mold release mechanism 740 pushes the upper mold against the upper mold processing mechanism 720. The upper mold release mechanism 740 continuously squeezes the upper mold to separate the upper mold from the dry film. The dry film transfer mechanism 730 picks up and transfers the demolded dry film. The upper mold processing mechanism 720 pushes the demolded upper mold away from the film receiving plate 710.

[0028] In practical use, the sheet-retrieving carrier plate 710 is used to place the upper mold containing the dry sheet that has been separated from the lower mold. The upper mold release mechanism 740 pushes the upper mold to abut against the upper mold processing mechanism 720 and continuously pushes and squeezes the upper mold, causing it to deform to a certain extent so as to separate it from the dry sheet applied on it. The dry sheet transfer mechanism 730 picks up the dry sheet that has been separated from the upper mold and transfers it out of the sheet-retrieving carrier plate 710. The upper mold processing mechanism 720 pushes out the upper mold residue that has been separated from the dry sheet from the sheet-retrieving carrier plate 710, leaving a place to wait for the next sheet-retrieving operation.

[0029] This dry contact lens demolding device features a compact overall structure. The demolding mechanism, in conjunction with the upper mold processing mechanism, positions and deforms the upper mold together, completing the separation of the upper mold and the dry lens, enabling batch demolding of dry lenses. The dry lens transfer mechanism and upper mold processing mechanism then quickly transport the separated dry lenses and upper molds out of the lens-removing platen, achieving rapid lens removal and mold residue cleaning. Overall, this device reduces the time and cost of manual lens removal and waste lens production, automating the dry lens removal process and improving the overall processing efficiency of dry contact lenses.

[0030] In this embodiment, the wafer carrier plate 710 is provided with a plurality of upper mold slots 711 for placing the upper mold; the upper mold removal mechanism 740 includes an upper mold driving device 741 and an extrusion push plate 742 driven and connected to the execution end of the upper mold driving device 741; when separating the upper mold and the dry wafer, the upper mold driving device 741 drives the extrusion push plate 742 to push the upper mold carrying the dry wafer to move in the upper mold slot 711, and pushes the upper mold carrying the dry wafer to the upper mold processing mechanism 720 and continuously applies pressure until the upper mold and the dry wafer are separated.

[0031] Specifically, the upper surface of the wafer carrier plate 710 is provided with multiple upper mold grooves 711 for guiding the upper mold, so that the upper mold release mechanism 740 can push the upper mold to move, avoid the upper mold from shifting during movement, and improve the demolding and separation efficiency between the upper mold and the dry wafer.

[0032] In this embodiment, the edge of the extrusion push plate 742 is provided with extrusion concave teeth 743; specifically, the extrusion concave teeth 743 with a certain concave arc can reserve extrusion deformation space when the extrusion push plate 742 reaches the limit position, and can also prevent the upper die from shifting during the pushing process.

[0033] In this embodiment, the dry film transfer mechanism 730 includes a transfer displacement driving device 731, a transfer rotation driving device 732 drivenly connected to the execution end of the transfer displacement driving device 731, and a transfer tooling 733 drivenly connected to the execution end of the transfer rotation driving device 732.

[0034] The transfer displacement drive device 731 drives the transfer rotation drive device 732, which in turn drives the transfer fixture 733 to the sheet picking carrier plate 710, picking up the demolded dry sheet and transferring it out of the sheet picking carrier plate 710; during the picking and transfer process, the transfer rotation drive device 732 drives the transfer fixture 733 to rotate so that the transfer fixture 733 can accurately pick up and place the sheet.

[0035] Specifically, the transfer displacement drive device 731 can be an XZ axis dual-axis linear motor to drive the transfer rotary drive device 732 and the transfer fixture 733 to move in a dual-axis manner. The transfer fixture 733 can be a suction cup or gripper or other fixture that can pick up the dry sheet. The transfer rotary drive device 732 can rotate the transfer fixture 733 as needed. During the picking, transfer and placement process, the transfer fixture 733 can be rotated as needed to improve the adaptability of the transfer action to various equipment layouts.

[0036] In this embodiment, the upper mold processing mechanism 720 includes an upper mold processing drive device 721 and an upper mold connecting plate 722 driven and connected to the execution end of the upper mold processing drive device 721; the upper mold connecting plate 722 is provided with a positioning tooth plate 723 at its end; the upper mold release mechanism 740 pushes the upper mold carrying the dry sheet into the positioning tooth plate 723 and continues to squeeze until the upper mold separates from the dry sheet; the upper mold processing drive device 721 drives the upper mold connecting plate 722 to drive the positioning tooth plate 723 to push the upper mold after it is separated from the dry sheet to move, so that the upper mold leaves the sheet taking plate 710.

[0037] Specifically, during the extrusion and separation of the upper die, and during the pushing of the separated upper die, the positioning tooth plate 723 provides auxiliary positioning for the upper die to prevent it from shifting during the pushing process.

[0038] In this embodiment, the upper mold receiving hopper 770 is also provided at the sheet taking plate 710. The upper mold processing driving device 721 drives the upper mold connecting plate 722 to drive the positioning tooth plate 723 to push the upper mold after the dry sheet is separated into the receiving hopper 770. The receiving hopper 770 is used to collect the remaining material of the upper mold after the dry sheet is separated.

[0039] This embodiment also includes a shaping mechanism 750 and a shaping lifting mechanism 760 that drives the shaping mechanism 750 to rise and fall. When the upper mold carrying the dry sheet is pressed against the upper mold processing mechanism 720, the shaping lifting mechanism 760 drives the shaping mechanism 750 to rise and fall, so that the execution end of the shaping mechanism 750 passes through the sheet-removing carrier plate 710 and extends into the concave surface of the upper mold. Specifically, the execution end of the shaping mechanism 750 extends into the concave surface of the upper mold to provide a certain degree of support to the concave surface of the upper mold, avoiding severe deformation of the upper mold during the further extrusion and demolding process of the upper mold demolding mechanism 740 and during the sheet-removing process of the dry sheet transfer mechanism 730 after demolding, reducing damage or detachment of the dry sheet caused by severe deformation of the upper mold; improving the success rate of sheet removal and reducing waste sheets.

[0040] In this embodiment, the taking plate 710 is provided with a shaping hole 712 to facilitate the passing of the shaping mechanism 750.

[0041] In this embodiment, the shaping mechanism 750 includes shaping rods 752 and a rotary drive device 751 for driving the shaping rods 752 to rotate. The output end of the rotary drive device 751 is connected to several shaping rods 752, and the rotary drive device 751 drives the shaping rods 752 extending into the concave surface of the upper mold to rotate. Specifically, the shaping rods 752 extend into the concave surface of the upper mold, providing a certain degree of support to the concave surface and preventing excessive compression. Furthermore, the rotatable shaping rods 752 can rotate as needed, facilitating the demolding of the dry sheet.

[0042] In this embodiment, a lifting guide rod 761 is also included. The execution end of the shaping lifting mechanism 760 drives the shaping mechanism 750 to slide up and down on the lifting guide rod 761, thereby guiding the shaping mechanism 750 to move smoothly.

[0043] 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 dry contact lens dispensing device, characterized in that, It includes a wafer-retrieving plate (710) for placing a plurality of upper molds carrying dry wafers, an upper mold processing mechanism (720) for blocking and pushing the upper molds, an upper mold removal mechanism (740) for squeezing the upper molds to separate the upper molds from the dry wafers, and a dry wafer transfer mechanism (730) for picking up and transferring the dry wafers after demolding. During operation, the upper mold carrying the dry film is placed at the film taking plate (710). The upper mold release mechanism (740) pushes the upper mold against the upper mold processing mechanism (720). The upper mold release mechanism (740) continuously squeezes the upper mold to separate the upper mold from the dry film. The dry film transfer mechanism (730) picks up and transfers the demolded dry film. The upper mold processing mechanism (720) pushes the demolded upper mold away from the film taking plate (710).

2. The contact lens dry lens taking device according to claim 1, characterized in that, The take-up plate (710) is provided with a plurality of upper mold slots (711) for placing the upper mold; the upper mold removal mechanism (740) includes an upper mold drive device (741) and an extrusion push plate (742) driven and connected to the execution end of the upper mold drive device (741); the edge of the extrusion push plate (742) is provided with extrusion teeth (743); When separating the upper die from the dry sheet, the top die drive device (741) drives the extrusion push plate (742) to push the upper die carrying the dry sheet to move in the upper die groove (711), and pushes the upper die carrying the dry sheet to the upper die processing mechanism (720) and continues to apply pressure until the upper die and the dry sheet are separated.

3. The dry contact lens dispensing device according to claim 1, characterized in that, The dry film transfer mechanism (730) includes a transfer displacement drive device (731), a transfer rotation drive device (732) driven and connected to the execution end of the transfer displacement drive device (731), and a transfer tooling (733) driven and connected to the execution end of the transfer rotation drive device (732). When transferring the dry sheet, the transfer displacement drive device (731) drives the transfer rotation drive device (732) to move the transfer fixture (733) to the sheet picking plate (710) to pick up the demolded dry sheet and transfer it out of the sheet picking plate (710); during the picking and transfer process, the transfer rotation drive device (732) drives the transfer fixture (733) to rotate so that the transfer fixture (733) can accurately pick up and place the sheet.

4. The dry contact lens dispensing device according to claim 1, characterized in that, The upper mold processing mechanism (720) includes an upper mold processing drive device (721) and an upper mold connecting plate (722) that is driven to the execution end of the upper mold processing drive device (721); the upper mold connecting plate (722) is provided with a positioning tooth plate (723) at its end; The upper mold release mechanism (740) pushes the upper mold carrying the dry film into the positioning tooth plate (723) and continues to squeeze until the upper mold separates from the dry film; the upper mold processing drive device (721) drives the upper mold connecting plate (722) to drive the positioning tooth plate (723) to move the upper mold after it is separated from the dry film, so that the upper mold leaves the film taking plate (710).

5. The dry contact lens extraction device according to claim 4, characterized in that, The sheet-receiving plate (710) is also provided with an upper mold receiving hopper (770). The upper mold processing drive device (721) drives the upper mold connecting plate (722) to drive the positioning tooth plate (723) to push the upper mold after the dry sheet is separated into the receiving hopper (770).

6. The dry contact lens dispensing device according to claim 1, characterized in that, It also includes a shaping mechanism (750) and a shaping lifting mechanism (760) for driving the shaping mechanism (750) to rise and fall; When the upper mold carrying the dry sheet is pressed against the upper mold processing mechanism (720), the shaping lifting mechanism (760) drives the shaping mechanism (750) to rise and fall, so that the execution end of the shaping mechanism (750) passes through the sheet taking plate (710) and extends into the inner concave surface of the upper mold.

7. The dry contact lens extraction device according to claim 6, characterized in that, The sample carrier plate (710) is provided with a shaping hole (712) to facilitate the passing of the shaping mechanism (750).

8. A dry contact lens dispensing device according to claim 6, characterized in that, The shaping mechanism (750) includes a shaping rod (752) and a rotary drive device (751) for driving the shaping rod (752) to rotate; the output end of the rotary drive device (751) is connected to several shaping rods (752), and the rotary drive device (751) drives the shaping rods (752) that extend into the concave surface of the upper mold to rotate.

9. A dry contact lens dispensing device according to claim 6, characterized in that, Includes a lifting guide rod (761), and the actuator of the shaping lifting mechanism (760) drives the shaping mechanism (750) to slide up and down on the lifting guide rod (761).

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