Method and system for parting and taking dry contact lenses

Abstract

The invention relates to the technical field of contact lens automatic production, in particular to a contact lens dry piece mold splitting and taking method and system which comprises a mold carrying unit, a demolding unit, a piece taking unit and a placing unit. In actual use, the tray carrying unit rapidly provides to-be-split piece taking molds in batches, and the mold feeding efficiency is improved; the demolding unit and the sheet taking unit are matched, and dry sheets are taken out from an upper mold in batches after a lower mold of the mold is rapidly split, so that automatic and rapid batch picking of the assembly is realized, and the dry sheet taking efficiency is improved; the placing unit is used for efficiently placing the dry sheets in a tray, so that redundant turnover work is avoided, and the dry sheets can be quickly placed in the tray for receiving; according to the dry contact lens mold splitting and taking method and system, the overall structure is compact, manual operation in the mold splitting and taking production stage is reduced, and the mold splitting and taking efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automated contact lens production, in particular to a contact lens dry lens mold separation and sheet taking method and system. Background Art

[0002] During the production process of dry contact lenses, liquid is injected into the lower mold and then combined with the upper mold. After molding and curing, the upper and lower molds need to be opened to separate the lenses from the mold and take out the complete contact lenses (dry lenses).

[0003] In the production stage of demoulding and separating the dry sheets, manual or semi-automatic demoulding is usually adopted. This method has high labor intensity for workers, low production efficiency, and is easy to cause damage and contamination of the dry sheets. The finished product rate and qualified rate are relatively low, which cannot meet market demand. Therefore, it is urgent to provide a solution. Summary of the invention

[0004] The object of the present invention is to provide a contact lens dry lens demolding and film taking method and system which can automatically carry and load materials, quickly demould, efficiently demold and take films, and batch put into trays.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The present invention provides a contact lens dry lens mold separation and film taking method, comprising a mold moving unit for moving the mold, a demoulding unit for opening the upper mold and the lower mold of the mold, a film taking unit for taking out and transferring the dry lens, and a placing unit for placing the dry lens on a plate;

[0007] The specific steps are as follows:

[0008] S10. The mold moving unit moves multiple molds from the loading tray to the demoulding unit in batches;

[0009] S20. The demoulding unit separates the upper mold and the lower mold of the mold, and transfers the upper mold carrying the dry film to the film taking unit;

[0010] S30. The sheet taking unit takes out the dry sheet from the upper mold and transfers it to the placement unit;

[0011] S40. The placing unit transfers the dried slices and places them into the receiving tray.

[0012] The present invention also provides a contact lens dry lens mold separation and film removal system, which is used to implement the above-mentioned contact lens dry lens mold separation and film removal method, including a mold moving unit for moving the mold, a demoulding unit for opening the upper mold and the lower mold of the mold, a film removal unit for taking out and transferring the dry lenses, and a placement unit for collecting the dry lenses and placing them on a plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In actual use, the tray moving unit provides molds to be separated and taken out in batches quickly, thereby improving the efficiency of mold loading; the demoulding unit and the film taking unit are matched to quickly separate the lower mold of the mold, and then take out the dry films in batches from the upper mold, thereby realizing automatic batch rapid picking of components and improving the efficiency of dry film taking out; and the placement unit places the dry films efficiently on the tray, avoiding unnecessary turnover work and realizing the rapid placement of dry films into the tray for collection; the contact lens dry film separation and film taking method and system have a compact overall structure, reduce manual operations in the production stage of separation and film taking out, and improve the efficiency of separation and film taking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view schematic diagram of the present invention;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 3 It is a structural schematic diagram of the mold moving unit of the present invention;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the demoulding unit of the present invention;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the mold ejecting mechanism in the demoulding unit of the present invention;

[0020] Figure 6 for Figure 5 The enlarged schematic diagram at A in the middle;

[0021] Figure 7 It is a structural schematic diagram of the film taking unit of the present invention;

[0022] Figure 8 It is a three-dimensional structural schematic diagram of the upper mold processing mechanism in the film taking unit of the present invention;

[0023] Fig. 9 It is a structural schematic diagram of the placement unit of the present invention;

[0024] Fig.10 This is a schematic diagram of the placement unit described in the present invention. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] refer to Figure 1-10As shown, a method for removing contact lens dry lenses from molds comprises a mold moving unit 100 for moving the mold, a demoulding unit 200 for opening the upper mold and the lower mold of the mold, a film taking unit 700 for taking out and transferring the dry lenses, and a placing unit 800 for placing the dry lenses on a plate;

[0027] The specific steps are as follows:

[0028] S10. The mold moving unit 100 moves a plurality of molds from the loading tray 911 in batches to the demolding unit 200;

[0029] S20. The demoulding unit 200 separates the upper mold and the lower mold of the mold, and transfers the upper mold carrying the dry film to the film taking unit 700;

[0030] S30. The film taking unit 700 takes out the dry film from the upper mold and transfers it to the placement unit 800;

[0031] S40. The placement unit 800 transfers and places the dry sheets into the receiving tray 921.

[0032] In actual use, the tray moving unit 100 quickly provides molds to be separated and taken out in batches, thereby improving the efficiency of mold loading; the demoulding unit 200 and the film taking unit 700 cooperate with each other to quickly separate the lower mold of the mold, and then take out the dry films in batches from the upper mold, thereby realizing automated batch rapid demoulding and film taking, and improving the efficiency of dry film taking; and the placement unit 800 efficiently places the dry films on trays, thereby avoiding unnecessary turnover work and realizing rapid tray collection of dry films; the method for separating and taking out dry films for contact lens has a simple overall process flow, reduces manual operations in the production stage of separating and taking out films, and improves the efficiency of separating and taking out films.

[0033] In this embodiment, the feeding end of the mold moving unit 100 is provided with a loading bin 910 for providing a loading tray 911 to the mold moving unit 100, and the discharging end of the display unit 800 is provided with a receiving bin 920 for providing a receiving tray 921 to the display unit 800. Specifically, the loading bin 910 and the receiving bin 920 can continuously provide the loading tray 911 and the receiving tray 921, thereby improving the efficiency of the equipment at the loading and receiving ends, so that the equipment can further adapt to the automated production process.

[0034] In this embodiment, the mold moving unit 100 includes a mold moving tool 110, a mold moving displacement mechanism 120 for driving the mold moving tool to move, a mold turning frame 130, a mold turning mechanism 140 for driving the mold turning frame 130 to turn over and lift, and a mold sending slide 160 for sending the turned mold to the demolding unit 200; in step S10, it also includes:

[0035] S11. The mold displacement mechanism 120 drives the mold moving tooling 110 to move the mold and place it on the mold turning frame 130;

[0036] S12. The mold turning frame 130 fixes the mold; the mold sending slide mechanism 160 moves to the mold turning frame 130;

[0037] S13. The mold turning mechanism 140 drives the mold turning frame 130 to turn the mold over and place the mold on the mold sending slide mechanism 160;

[0038] S14. The mold-transferring slide mechanism 160 transfers the mold to the demolding unit 200 .

[0039] Specifically, the mold flipping frame 130 adopts a suction cup frame structure to fix and place the mold to be demolded; the mold moving tooling 110 can adopt a suction cup or a clamping claw that can realize mold picking and placing; the mold flipping mechanism 140 includes a mold flipping rotating drive device 141, and a mold flipping lifting drive device 142 that drives the mold flipping rotating drive device 141 to rise and fall; the mold moving displacement mechanism 120 drives the mold moving tooling 110 to grab and transport batches of molds, and then the mold flipping lifting drive device 142 cooperates with the mold flipping rotating drive device 141 to flip the mold, so that the upper mold of the mold faces downward and the outer convex surface of the lower mold faces upward, and the mold slide mechanism 160 is used to quickly transfer the mold to the demolding unit 200 for subsequent demolding and demolding operations, thereby improving the overall demolding and film taking efficiency and greatly improving the efficiency of mold loading.

[0040] In this embodiment, the demoulding unit 200 includes a demoulding material transport mechanism 220 for transporting the mold to be demoulded, a mold drop frame 230 for placing the mold to be demoulded, a demoulding mechanism 210 for squeezing and separating the mold, and a mold pushing mechanism 240 for pushing the demoulded mold into the demoulding conveying mechanism 260;

[0041] The demoulding unit 200 includes a demoulding material transport mechanism 220, a mold drop frame 230, a demoulding mechanism 210, and a mold pushing mechanism 240;

[0042] In step S20, it also includes

[0043] S21. The demoulding material transport mechanism 220 transports the mold to be demoulded from the discharge end of the mold transport unit 100 to the mold drop frame 230;

[0044] S22. The lower mold of the mold is squeezed by the demolding mechanism 210 to separate the upper mold from the lower mold, and the upper mold carrying the dry film is ejected from the mold frame 230 into the push mold mechanism 240;

[0045] S23. The mold pushing mechanism 240 pushes the upper mold carrying the dry sheet into the demoulding conveying mechanism 260, and the demoulding conveying mechanism 260 conveys and transfers the upper mold carrying the dry sheet.

[0046] Specifically, the demoulding material transport mechanism 220 is responsible for the transportation of the mold to be demoulded, realizes continuous mold feeding, and places the mold to be demoulded in the mold drop frame 230 to realize batch rapid loading of the mold; the demoulding mechanism 210 squeezes the lower mold to separate the upper mold carrying the dry film from the lower mold, and sends the upper mold carrying the dry film from the mold drop frame 230 to the mold pushing mechanism 240 to realize batch rapid separation of the lower mold and the upper mold; the mold pushing mechanism 240 then pushes the upper mold carrying the dry film into the demoulding conveying mechanism 260, and transfers the upper mold carrying the dry film to the film taking unit 700 for subsequent dry film taking operations, which is very practical and universal; the demoulding unit 200 adopts the demoulding mechanism in combination with the mold drop frame to complete the rapid demoulding of the upper mold carrying the dry film, and the mold pushing mechanism cooperates with the demoulding conveying mechanism to quickly transfer the upper mold carrying the dry film after separating from the lower mold, thereby improving the efficiency of contact lens dry film production.

[0047] In this embodiment, the die-dropping frame 230 is provided with a plurality of die-dropping holes 231; the die-dropping holes 231 are used to drop the upper die carrying the dry sheet; specifically, the diameter of the die-dropping holes 231 is larger than the upper die and smaller than the lower die;

[0048] In step S21, the demolding material transport mechanism 220 transports the mold to be demolded to the mold drop hole 231; in step S22, the upper mold carrying the dry sheet passes through the mold drop hole 231 and enters the mold pushing mechanism 240; specifically, the mold drop hole 231 is used to block and position the lower mold after being separated and demolded, so that the upper mold carrying the dry sheet can smoothly enter the mold pushing mechanism 240.

[0049] In this embodiment, the demoulding material transport mechanism 220 includes a demoulding material transport displacement driving device 221, a demoulding material transport lifting driving device 222 drivingly connected to the execution end of the demoulding material transport displacement driving device 221, and a demoulding material transport tool 223 drivingly connected to the execution end of the demoulding material transport lifting driving device 222; a residual material push plate 224 is also provided on the side of the demoulding material transport tool 223;

[0050] The demoulding material transport displacement drive device 221 drives the demoulding material transport lifting drive device 222 to move, thereby driving the demoulding material transport tooling 223 to transport the mold to be demoulded from the discharge end of the mold moving unit 100 to the mold drop hole 231 on the mold drop frame 230; when the demoulding material transport tooling 223 enters the mold drop frame 230, the demoulding material transport tooling 223 drives the demoulding plate 224 to push the demoulded lower mold above the mold drop hole 231 away from the mold drop hole 231.

[0051] Specifically, the demoulding and material transporting tooling 223 can adopt a tooling such as a suction cup or a clamp that can pick up molds in batches; the demoulding and material transporting displacement driving device 221 drives the demoulding and material transporting lifting driving device 222 to drive the demoulding and material transporting tooling 223 to move the molds to be demoulded for loading; during the loading process, each time the demoulding and material transporting tooling 223 enters the mold dropping frame 230, the residual material pushing plate 244 pushes the demoulded lower mold away from the mold dropping hole 231, in order to facilitate the placement of the molds to be demoulded and remove the residual materials after the previous batch of demoulding is completed.

[0052] In this embodiment, the demolding mechanism 210 includes a top-lower mold lifting drive device 211, and a plurality of top mold columns 212 drivingly connected to the execution end of the top-lower mold lifting drive device 211; the top-lower mold lifting drive device 211 drives the top mold columns 212 to press the lower mold until the lower mold is separated from the upper mold carrying the dry sheet.

[0053] Specifically, the top mold column 212 is a column with a top bead at the end. The top mold lifting drive device 211 drives the top mold column 212 to descend, and makes the top bead at the end of the top mold column 212 contact and squeeze the outer convex surface of the lower mold; during the demolding process, the top mold column 212 continues to descend, and the dry sheet and the upper mold are ejected from the inner concave wall of the lower mold to complete the mold demolding.

[0054] In this embodiment, the die pushing mechanism 240 includes a die pushing driving device 241, a die pushing fork plate 242 drivingly connected to the execution end of the die pushing driving device 241, and a die receiving groove plate 243 for carrying the upper die; after demoulding, the upper die carrying the dry sheet enters the die receiving groove plate 243 from the die drop frame 230, and the die pushing driving device 241 drives the die pushing fork plate 242 to push the upper die into the demoulding conveying mechanism 260. The die receiving groove plate 243 is provided with a plurality of die guide grooves 246 for guiding the movement of the upper die, and the end of the die pushing fork plate 242 is provided with a plurality of die pushing forks 245 matching the die guide grooves 246.

[0055] Specifically, a plurality of guide mold grooves 246 are provided on the mold receiving groove plate 243, and each guide mold groove 246 is used to independently guide an upper mold carrying a dry sheet. When the mold pushing driving device 241 drives the mold pushing fork plate 242, the mold pushing fork 245 at the end of the demolding fork plate 242 pushes the upper mold in the corresponding guide mold groove 246, thereby realizing a unified action on a plurality of upper molds, completing the batch production of the upper molds, and efficiently pushing the upper molds carrying the dry sheet after demolding, and sending the upper mold carrying the dry sheet to the demolding conveying mechanism 260 for conveying and transferring to the next workstation.

[0056] In this embodiment, an upper die positioning mechanism 250 is further provided at the die connection slot plate 243, and an upper die positioning hole 244 is provided on the die connection slot plate 243; the execution end of the upper die positioning mechanism 250 passes through the upper die positioning hole 244 to position the upper die carrying the dry sheet after demoulding and entering the die connection slot plate 243. The upper die positioning mechanism 250 includes an upper die positioning driving device 251, and an upper die positioning column 252 drivingly connected to the execution end of the upper die positioning driving device 251; before the upper die carrying the dry sheet enters the die connection slot plate 243, the upper die positioning driving device 251 drives the upper die positioning column 252 to pass through the upper die positioning hole 244, and the upper die carrying the dry sheet after demoulding falls on the end of the upper die positioning column 252 to be positioned; when the push die driving device 241 drives the push die fork plate 242 to push the upper die, the upper die positioning driving device 251 drives the upper die positioning column 252 to retract. Specifically, the upper mold positioning mechanism 250 is used to position the upper mold carrying the dry sheet that falls into the mold receiving groove plate 243 during the demolding process to prevent it from deviating during the falling or entering process.

[0057] In this embodiment, the film taking unit 700 includes a film taking carrier plate 710 of an upper mold, an upper mold processing mechanism 720, an upper mold stripping mechanism 740, and a dry film transfer mechanism 730;

[0058] In step S30, it also includes:

[0059] S31. The upper mold containing the dry film is placed on the film carrier 710;

[0060] S32. The demolding mechanism 740 pushes the upper mold tightly against the upper mold processing mechanism 720, and the demolding mechanism 740 continues to squeeze the upper mold to separate the upper mold from the dry sheet;

[0061] S33. The dry sheet transfer mechanism 730 picks up the dry sheet after demolding from the upper mold and transports the dry sheet to the placement unit 800;

[0062] S34. The upper mold processing mechanism 720 pushes the demoulded upper mold away from the film-taking carrier 710.

[0063] In actual use, the film carrier 710 is used to place the upper mold carrying the dry film that has been separated from the lower mold. The upper mold demolding mechanism 740 pushes the upper mold to abut the upper mold against the upper mold processing mechanism 720, and continues to push and squeeze the upper mold, so that the upper mold is deformed to a certain extent to separate it from the dry film attached to it; the dry film transfer mechanism 730 picks up the dry film that has been separated from the upper mold and transfers it out of the film carrier 710, and the upper mold processing mechanism 720 pushes the upper mold residue that has been demolded and separated from the dry film out of the film carrier 710, leaving a vacant placement position waiting for the next film retrieval operation.

[0064] The film taking unit 700 adopts a demoulding mechanism and an upper mold processing mechanism to position and extrude the upper mold together, complete the separation of the upper mold and the dry film, and realize the demoulding of batches of dry films; and through the dry film transfer mechanism and the upper mold processing mechanism, the separated dry film and the upper mold are quickly transported out of the film taking carrier 710 respectively, to realize the action of fast film taking and cleaning the residual material of the mold; realize the automated dry film taking operation, and improve the overall processing efficiency of contact lens dry films.

[0065] In this embodiment, the film-taking carrier plate 710 is provided with a plurality of upper die grooves 711 for placing the upper die; the upper die stripping mechanism 740 includes an upper die driving device 741 and an extrusion push plate 742 drivingly connected to the execution end of the upper die driving device 741;

[0066] The upper mold driving device 741 drives the extrusion push plate 742 to push the upper mold carrying the dry film to move in the upper mold groove 711, and pushes the upper mold carrying the dry film to the upper mold processing mechanism 720 and continues to pressurize until the upper mold is separated from the dry film.

[0067] Specifically, the upper end surface of the film carrier 710 is provided with a plurality of upper mold grooves 711 for guiding the upper mold, so that the demolding mechanism 740 can push the upper mold to move, avoid the upper mold from shifting when moving, and improve the demolding and separation efficiency of the upper mold and the dry film.

[0068] 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 curvature can prevent the upper mold from deflecting during the pushing process.

[0069] In this embodiment, the dry film transfer mechanism 730 includes a transfer displacement drive device 731, a transfer rotation drive device 732 and a transfer tool 733; the transfer displacement drive device 731 drives the transfer rotation drive device 732 and then drives the transfer tool 733 to the film carrier 710, picks up the demolded dry film and transfers it out of the film carrier 710; during the picking and transferring process, the transfer rotation drive device 732 drives the transfer tool 733 to rotate so that the transfer tool 733 can accurately pick up and place.

[0070] Specifically, the transfer displacement drive device 731 is an XZ-axis dual-axis linear motor, which is used to drive the transfer rotation drive device 732 and the transfer tooling 733 to perform dual-axis movement. The transfer tooling 733 is a tooling such as a suction cup or a clamp that can pick up the dry film; the transfer rotation drive device 732 can rotate the transfer tooling 733 as needed. During the picking, transferring and placing processes, the transfer tooling 733 can be rotated as needed, thereby improving the adaptability of the transfer action to various equipment layouts.

[0071] In this embodiment, the upper mold processing mechanism 720 includes an upper mold processing driving device 721, and an upper mold connecting plate 722 that is driven and connected to the execution end of the upper mold processing driving device 721; a positioning tooth plate 723 is provided at the end of the upper mold connecting plate 722; the upper mold demolding mechanism 740 pushes the upper mold carrying the dry sheet and presses it into the positioning tooth plate 723, and continues to squeeze until the upper mold is separated from the dry sheet; the upper mold processing driving device 721 drives the upper mold connecting plate 722 to move, and then drives the positioning tooth plate 723 to push the upper mold separated from the dry sheet to move, so that the upper mold leaves the film carrier 710.

[0072] In this embodiment, an upper die receiving hopper 770 is also provided at the sheet taking carrier plate 710 , and the upper die processing driving device 721 drives the upper die connecting plate 722 to drive the positioning tooth plate 723 to push the upper die after the dry sheet is separated into the receiving hopper 770 .

[0073] In this embodiment, it 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 film is pushed and 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 film carrier 710 and extends into the inner concave surface of the upper mold.

[0074] Specifically, the execution end of the shaping mechanism 750 extends into the inner concave surface of the upper mold, providing support to the inner concave surface of the upper mold to a certain extent, thereby preventing the upper mold from being severely deformed during the extrusion and demolding process of the upper mold demolding mechanism 740 and the film taking process of the dry film transfer mechanism 730 after demolding, reducing damage or falling of the dry film caused by severe deformation of the upper mold, improving the success rate of film taking and reducing waste films.

[0075] In this embodiment, the sheet-taking carrier 710 is provided with a shaping hole 712 for the shaping mechanism 750 to pass through; the shaping mechanism 750 includes a shaping rod 752 and a rotation drive device 751 for driving the shaping rod 752 to rotate; the output end of the rotation drive device 751 is connected to a plurality of shaping rods 752, and the rotation drive device 751 drives the shaping rods 752 extending into the inner concave surface of the upper mold to rotate. Specifically, the shaping rods 752 extend into the inner concave surface of the upper mold to support the inner concave surface of the upper mold to a certain extent to avoid excessive extrusion, and the rotatable shaping rods 752 can be rotated as required to facilitate demoulding.

[0076] In this embodiment, a lifting guide rod 761 is also included. The execution end of the shaping lifting mechanism 760 is connected to and drives the shaping mechanism 750 to lift and slide on the lifting guide rod 761, thereby driving the shaping rod 752 of the shaping mechanism 750 to extend into the inner concave surface of the upper mold.

[0077] In this embodiment, the placement unit 800 includes a flip assembly 810, a swing tray frame 840 for placing a receiving tray 921, a dry sheet flip driving device 820 for driving the flip assembly 810 to flip, and a tooling driving mechanism 830 for driving the dry sheet flip driving device 820 to move;

[0078] In step S40, it also includes:

[0079] S41. The dry sheet removed from the mold is transported to the flap assembly 810, which fixes the dry sheet;

[0080] S42. The dry film flip driving device 820 drives the flap assembly 810 to flip so that the dry film fixed on the flap assembly 810 flips in the direction of rotation;

[0081] S43. The tooling drive mechanism 830 drives the dry film flipping drive device 820 to move the flipping assembly 810 to the swing plate rack 840,

[0082] S44. The sheet turning assembly 810 places the dry sheets into the receiving tray 921.

[0083] Specifically, the dry film flipping drive device 820 can adopt a rotating cylinder, and the dry film flipping drive device 820 drives the flipping assembly 810 to flip and change direction, so that the fixed dry film changes its direction, which is convenient for the subsequent tray placement action; the placement unit 800 adopts the flipping assembly 810 to load and fix multiple dry films, thereby increasing the number of trays placed in a single tray; the dry film flipping drive device realizes the secondary direction change of the incoming dry films, and adapts to various tray placement state requirements; the tooling drive mechanism 830 drives the dry film flipping drive device 820 and the flipping assembly 810 to perform fast and stable operations, thereby realizing the automated and rapid batch placement of contact lens dry films, thereby improving the overall production efficiency of contact lenses.

[0084] In this embodiment, the film turning assembly 810 includes a tooling frame 811 and a plurality of picking assemblies 812 installed on the tooling frame 811; the picking assemblies 812 fix the transferred dry films.

[0085] Specifically, the picking component 812 can use a suction nozzle or a clamping claw to pick up and place the dry film; multiple picking components 812 are installed on the tooling frame 811, which can realize the synchronous placement of multiple dry films and improve the efficiency of placing the dry films into the tray.

[0086] In this embodiment, the tooling driving mechanism 830 includes a tooling displacement driving device 831 and a tooling lifting driving device 832 drivingly connected to the execution end of the tooling displacement driving device 831; the tooling displacement driving device 831 drives the tooling lifting driving device 832 to move the sheet flipping assembly 810 to the receiving tray 921 with the dry sheet flipping driving device 820; specifically, the tooling displacement driving device 831 can adopt a linear motor, and the tooling lifting driving device 832 can adopt a cylinder.

[0087] In this embodiment, an electrostatic dust removal assembly 880 is also provided at the flap assembly 810; when the tooling drive mechanism 830 drives the dry film flipping drive device 820 to move the flap assembly 810 past the electrostatic dust removal assembly 880, the electrostatic dust removal assembly 880 performs dust removal on the dry film to improve product quality.

[0088] In this embodiment, a plate moving drive mechanism 850 is also provided at the swing plate rack 840, and a plate moving tooling 860 is drivingly connected to the execution end of the plate moving drive mechanism 850; the plate moving drive mechanism 850 drives the plate moving tooling 860 to move the receiving tray 921 carrying the dry slices out of the swing plate rack 840 from the swing plate rack 840.

[0089] In this embodiment, the plate moving drive mechanism 850 includes a plate moving displacement drive device 851, a plate moving lifting drive device 852 drivingly connected to the execution end of the plate moving displacement drive device 851, and a tooling steering drive device 853 drivingly connected to the execution end of the plate moving lifting drive device 852; the plate moving displacement drive device 851 drives the plate moving lifting drive device 852 to move with the tooling steering drive device 853, so that the plate moving tooling 860 picks up the receiving tray 921 containing dry sheets at the swing tray rack 840.

[0090] Specifically, the plate shifting drive device 851 may adopt a linear motor, the plate shifting lifting drive device 852 may adopt a cylinder, and the plate shifting tooling 860 may adopt a tooling such as a clamp or an air disc that can pick up and place the receiving tray 921 .

[0091] In the present embodiment, the execution end drive of the tooling steering drive device 853 is connected to two tray moving tools 860; when one of the tray moving tools 860 picks up the receiving tray 921 loaded with dry sheets at the tray swing rack 840, the other tray moving tool 860 picks up the empty receiving tray 921 at the closing tray; when the tooling steering drive device 853 rotates, the tray moving tool 860 that picks up the empty receiving tray 921 is rotated to the tray swing rack 840; at the same time, the tray moving tool 860 that picks up the receiving tray 921 loaded with dry sheets is moved to the closing tray.

[0092] The present embodiment preferably has two tray transfer tools to realize synchronous clamping and placement of the two tools, and the tool steering drive device 853 rotates and reverses the positions of the empty and loaded receiving trays 921, so as to achieve rapid loading and unloading of the receiving trays 921 in a single action.

[0093] In this embodiment, the present invention further comprises a mold trimming unit 300 for trimming the burrs of the dry sheet, a softening unit 400 for softening the dry sheet, a pre-mold separation unit 500 for pre-separating the dry sheet from the upper mold, and a sheet transfer unit 600 for transferring the upper mold carrying the dry sheet between the pre-mold separation unit 500 and the sheet taking unit 700.

[0094] Between steps S10-S20, the following is also included:

[0095] S101. The upper mold carrying the dry sheet enters the mold repairing unit 300 from the demolding unit 200;

[0096] S102. The mold repair unit 300 trims the dry sheet; the trimmed dry sheet and the upper mold enter the softening unit 400 from the mold repair unit 300;

[0097] S103. The softening unit 400 softens the dry sheet; the softened dry sheet and the upper mold are moved to the pre-mold unit 500;

[0098] S104. The pre-mold separation unit 500 performs vacuum breaking treatment on the dry sheet attached to the upper mold to pre-separate the dry sheet from the upper mold;

[0099] S105 . The pre-separated dry sheet and upper mold are moved to the sheet picking and transferring unit 600 , and the sheet picking and transferring unit 600 transfers the upper mold carrying the dry sheet to the sheet picking unit 700 .

[0100] Specifically, the mold repairing unit 300 removes the scraps of the dry lens to improve the quality of the finished contact lens dry lens and avoid burrs and defects; the softening unit 400 humidifies, heats and softens the dry lens to facilitate demolding of the dry lens; the pre-mold separation unit 500 breaks the vacuum state between the dry lens and the upper mold to facilitate subsequent demolding and film removal; the film removal and transfer unit 600 is completed by a heating table and a transfer robot arm, and the dry lens after the vacuum is broken is temporarily placed on the heating table, and the dry lens and the lower mold are further heated and softened, and then the upper mold to be removed is transferred to the film removal unit 700 in batches, and the film removal unit 700 is automatically and continuously fed.

[0101] Specifically, the mold repairing unit 300, the softening unit 400, the pre-mold splitting unit 500, and the sheet taking and transferring unit 600 can all be realized by the technical features and technical solutions recorded in the prior art, so they are not described in detail in this embodiment.

[0102] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways without departing from the scope defined by the spirit of the present invention.

Claims

1. A method for removing contact lens dry lenses from molds, characterized in that: The method comprises a mold moving unit (100), a demoulding unit (200), a film taking unit (700), and a placing unit (800); the specific steps are as follows: S10. The mold moving unit (100) moves a plurality of molds from the loading tray (911) in batches to the demoulding unit (200); S20. The demoulding unit (200) separates the upper mold and the lower mold of the mold, and transfers the upper mold carrying the dry film to the film taking unit (700); S30. The sheet taking unit (700) takes out the dry sheet from the upper mold and transfers it to the placement unit (800); S40. The placement unit (800) transfers and places the dry sheets into the receiving tray (921).

2. A contact lens dry sheet separation and sheet removal method according to claim 1, characterized in that: The feeding end of the mold moving unit (100) is provided with a loading bin (910) for providing a loading tray (911) to the mold moving unit (100), and the discharging end of the placement unit (800) is provided with a receiving bin (920) for providing a receiving tray (921) to the placement unit (800).

3. A contact lens dry sheet separation and sheet removal method according to claim 1, characterized in that: The mold moving unit (100) comprises a mold moving tool (110), a mold moving displacement mechanism (120), a mold turning frame (130), a mold turning mechanism (140), and a mold sending slide (160); In step S10, it also includes: S11. The mold moving mechanism (120) drives the mold moving tool (110) to move the mold and place it on the mold turning frame (130); S12. The mold turning frame (130) fixes the mold; the mold sending slide mechanism (160) moves to the mold turning frame (130); S13. The mold turning mechanism (140) drives the mold turning frame (130) to turn the mold over and place the mold on the mold sending slide mechanism (160); S14. The mold-transferring slide mechanism (160) transfers the mold to the demoulding unit (200).

4. A contact lens dry sheet separation and sheet removal method according to claim 1, characterized in that: The demoulding unit (200) comprises a demoulding material transport mechanism (220), a mold drop frame (230), a demoulding mechanism (210), and a mold pushing mechanism (240); In step S20, it also includes S21. The demoulding and transporting mechanism (220) transports the mold from the discharge end of the mold transporting unit (100) to the mold drop frame (230); S22. The demolding mechanism (210) squeezes the lower mold of the mold to separate the upper mold from the lower mold of the mold, and pushes the upper mold carrying the dry sheet from the mold frame (230) into the push mold mechanism (240); S23. The mold pushing mechanism (240) pushes the upper mold carrying the dry sheet into the demoulding conveying mechanism (260), and the demoulding conveying mechanism (260) conveys and transfers the upper mold carrying the dry sheet.

5. A contact lens dry sheet separation and sheet removal method according to claim 4, characterized in that: The die drop frame (230) is provided with a plurality of die drop holes (231), and the die drop holes (231) are used to drop the upper die carrying the dry sheet; In step S21, the demoulding material transporting mechanism (220) transports the mold to the mold drop hole (231); In step S22, the upper mold carrying the dry sheet passes through the mold drop hole (231) and enters the mold push mechanism (240).

6. A contact lens dry sheet separation and sheet removal method according to claim 5, characterized in that: The demoulding material transport mechanism (220) comprises a demoulding material transport displacement driving device (221), a demoulding material transport lifting driving device (222) drivingly connected to the execution end of the demoulding material transport displacement driving device (221), and a demoulding material transport tool (223) drivingly connected to the execution end of the demoulding material transport lifting driving device (222); a residual material pushing plate (224) is also provided on the side of the demoulding material transport tool (223); The demoulding material transport displacement driving device (221) drives the demoulding material transport lifting driving device (222) to move, thereby driving the demoulding material transport tooling (223) to transport the mold from the discharge end of the mold moving unit (100) to the mold drop hole (231) on the mold drop frame (230); when the demoulding material transport tooling (223) enters the mold drop frame (230), the demoulding material transport tooling (223) drives the residual material pushing plate (224) to push the demoulded lower mold above the mold drop hole (231) away from the mold drop hole (231); The demoulding mechanism (210) comprises a top-bottom mold lifting drive device (211) and a plurality of top mold columns (212) drivingly connected to the execution end of the top-bottom mold lifting drive device (211); the top-bottom mold lifting drive device (211) drives the top mold columns (212) to press the bottom mold until the bottom mold is separated from the upper mold carrying the dry sheet.

7. A contact lens dry sheet separation and sheet removal method according to claim 4, characterized in that: The die-pushing mechanism (240) comprises a die-pushing driving device (241), a die-pushing fork plate (242) drivingly connected to the die-pushing driving device (241), and a die-receiving groove plate (243) for carrying the upper die; After demoulding, the upper mold carrying the dry sheet enters the mold receiving groove plate (243) from the mold drop frame (230), and the mold pushing driving device (241) drives the mold pushing fork plate (242) to push the upper mold into the demoulding conveying mechanism (260); The die receiving groove plate (243) is provided with a plurality of die guide grooves (246) for guiding the movement of the upper die, and the end of the die pushing fork plate (242) is provided with a plurality of die pushing forks (245) matching the die guide grooves (246).

8. A contact lens dry sheet separation and sheet removal method according to claim 7, characterized in that: The die connecting groove plate (243) is also provided with an upper die positioning mechanism (250), and an upper die positioning hole (244) is provided on the die connecting groove plate (243); The execution end of the upper die positioning mechanism (250) passes through the upper die positioning hole (244) to position the upper die carrying the dry sheet after demoulding and entering the die groove plate (243); The upper die positioning mechanism (250) comprises an upper die positioning driving device (251) and an upper die positioning column (252) drivingly connected to the execution end of the upper die positioning driving device (251); Before the upper die carrying the dried sheet enters the die receiving groove plate (243), the upper die positioning driving device (251) drives the upper die positioning column (252) to pass through the upper die positioning hole (244), and after demoulding, the upper die carrying the dried sheet falls on the end of the upper die positioning column (252) and is positioned; when the push die driving device (241) drives the push die fork plate (242) to push the upper die, the upper die positioning driving device (251) drives the upper die positioning column (252) to contract.

9. A contact lens dry lens mold separation and sheet removal method according to claim 1, characterized in that: The film taking unit (700) comprises a film taking carrier plate (710) of an upper mold, an upper mold processing mechanism (720), an upper mold stripping mechanism (740), and a dry film transfer mechanism (730); In step S30, it also includes: S31. The upper mold carrying the dry film is placed on the film carrier (710); S32. The demoulding mechanism (740) pushes the upper mold tightly against the upper mold processing mechanism (720), and the demoulding mechanism (740) continuously squeezes the upper mold to separate the upper mold from the dry sheet; S33. The dry sheet transfer mechanism (730) picks up the dry sheet after demoulding from the upper mold and moves the dry sheet to the placement unit (800); S34. The upper mold processing mechanism (720) pushes the demoulded upper mold away from the film-taking carrier (710).

10. A contact lens dry sheet separation and sheet removal method according to claim 9, characterized in that: The sheet-taking carrier (710) is provided with a plurality of upper die grooves (711) for placing upper dies; the upper die stripping mechanism (740) comprises an upper die driving device (741) and an extrusion push plate (742) drivingly connected to the execution end of the upper die driving device (741); the edge of the extrusion push plate (742) is provided with extrusion concave teeth (743); When the upper mold is separated from the dry sheet, the upper mold driving device (741) drives the extrusion push plate (742) to push the upper mold carrying the dry sheet to move in the upper mold groove (711), and pushes the upper mold carrying the dry sheet to the upper mold processing mechanism (720) and continues to apply pressure until the upper mold is separated from the dry sheet.

11. A contact lens dry lens mold separation and sheet removal method according to claim 9, characterized in that: The upper mold processing mechanism (720) comprises an upper mold processing driving device (721) and an upper mold connecting plate (722) drivingly connected to the execution end of the upper mold processing driving device (721); a positioning tooth plate (723) is provided at the end of the upper mold connecting plate (722); The upper mold release mechanism (740) pushes the upper mold carrying the dry film and presses it against the positioning tooth plate (723), and continues to squeeze until the upper mold is separated 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 push the upper mold separated from the dry film to move, so that the upper mold leaves the film removal carrier (710).

12. A contact lens dry sheet separation and sheet removal method according to claim 9, characterized in that: It also includes a shaping mechanism (750) and a shaping lifting mechanism (760) for driving the shaping mechanism (750) to lift and lower. When the upper mold carrying the dry film is pushed and 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 film-taking carrier (710) and extends into the inner concave surface of the upper mold; the film-taking carrier (710) is provided with a shaping hole (712) for the shaping mechanism (750) to pass through; The shaping mechanism (750) comprises a shaping rod (752) and a rotation driving device (751) for driving the shaping rod (752) to rotate; the output end of the rotation driving device (751) is connected to a plurality of shaping rods (752), and the rotation driving device (751) drives the shaping rod (752) extending into the inner concave surface of the upper mold to rotate; It also includes a lifting guide rod (761), and the execution end of the shaping lifting mechanism (760) is connected to and drives the shaping mechanism (750) to lift and slide on the lifting guide rod (761), thereby driving the shaping rod (752) of the shaping mechanism (750) to extend into the inner concave surface of the upper mold.

13. A contact lens dry lens mold separation and sheet removal method according to claim 1, characterized in that: The placement unit (800) comprises a film turning assembly (810), a plate swing frame (840), a dry film turning drive device (820) and a tooling drive mechanism (830); In step S40, it also includes: S41. The dry sheet removed from the mold is transported to the flap assembly (810), and the flap assembly (810) fixes the dry sheet; S42. The dry film flipping driving device (820) drives the flipping assembly (810) to flip so that the dry film fixed on the flipping assembly (810) flips and changes direction; S43. The tooling drive mechanism (830) drives the dry film flipping drive device (820) to move the film flipping assembly (810) to the swing plate rack (840). S44. The sheet turning assembly (810) places the dry sheets into the receiving tray (921).

14. A contact lens dry sheet separation and sheet removal method according to claim 13, characterized in that: The film turning assembly (810) comprises a tooling frame (811) and a plurality of picking assemblies (812) mounted on the tooling frame (811); the picking assemblies (812) are used to pick up dry films; The tooling drive mechanism (830) comprises a tooling displacement drive device (831) and a tooling lifting drive device (832) drivingly connected to the execution end of the tooling displacement drive device (831); the tooling displacement drive device (831) drives the tooling lifting drive device (832) to move the sheet flipping assembly (810) to the receiving tray (921) with the dry sheet flipping drive device (820); The flap assembly (810) is also provided with an electrostatic dust removal assembly (880); when the tooling drive mechanism (830) drives the dry film flipping drive device (820) to move the flap assembly (810) past the electrostatic dust removal assembly (880), the electrostatic dust removal assembly (880) performs dust removal on the dry film.

15. A contact lens dry lens mold separation and sheet removal method according to claim 13, characterized in that: The pan swing frame (840) is also provided with a pan moving drive mechanism (850), and a pan moving tool (860) is drivingly connected to the execution end of the pan moving drive mechanism (850); The tray moving driving mechanism (850) drives the tray moving tool (860) to move the receiving tray (921) carrying the dried slices out of the tray swinging frame (840); The plate shifting driving mechanism (850) comprises a plate shifting driving device (851), a plate shifting lifting driving device (852) drivingly connected to the execution end of the plate shifting lifting driving device (851), and a tooling steering driving device (853) drivingly connected to the execution end of the plate shifting lifting driving device (852); The tray shifting drive device (851) drives the tray lifting drive device (852) to move with the tooling steering drive device (853), so that the tray shifting tooling (860) picks up the receiving tray (921) carrying the dried slices at the tray swinging frame (840).

16. According to the method for separating and removing dry contact lens sheets according to claim 14, the execution end of the tooling steering drive device (853) is driven and connected to two tray-moving tools (860); when one of the tray-moving tools (860) picks up a receiving tray (921) loaded with dry sheets at the tray-swinging rack (840), the other tray-moving tool (860) picks up an empty receiving tray (921) at the receiving tray; When the tooling steering drive device (853) rotates, the tray transfer tooling (860) for picking up the empty material receiving tray (921) rotates to the tray swinging frame (840); at the same time, the tray transfer tooling (860) for picking up the material receiving tray (921) loaded with dried sheets moves to the receiving tray position.

17. A contact lens dry lens mold separation and sheet removal method according to claim 1, characterized in that: It also includes a mold repair unit (300), a softening unit (400), a pre-mold separation unit (500), and a film taking and transferring unit (600) located between the demoulding unit (200) and the film taking unit (700) processes; Between steps S10-S20, the following is also included: S101. The upper mold carrying the dry sheet enters the mold repairing unit (300) from the demoulding unit (200); S102. The mold repair unit (300) trims the dry sheet; the trimmed dry sheet and the upper mold enter the softening unit (400) from the mold repair unit (300); S103. The softening unit (400) softens the dry sheet; the softened dry sheet and the upper mold are moved to the pre-mold unit (500); S104. The pre-mold separation unit (500) performs vacuum breaking treatment on the dry sheet attached to the upper mold to pre-separate the dry sheet from the upper mold; S105. The pre-separated dry sheet and upper mold are moved to the sheet picking and transferring unit (600), and the sheet picking and transferring unit (600) transfers the upper mold carrying the dry sheet to the sheet picking unit (700).

18. A contact lens dry lens mold separation and lens removal system, characterized in that: The method for separating and removing contact lens dry lenses as described in any one of claims 1 to 17 comprises a mold moving unit (100) for moving the mold, a demoulding unit (200) for opening the upper mold and the lower mold of the mold, a film removal unit (700) for removing and transferring the dry lenses, and a placement unit (800) for collecting the dry lenses and placing them on a plate.

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