Dry contact lens parting and taking equipment

Abstract

The utility model relates to the technical field of automatic production of contact lenses, in particular to dry contact lens mold splitting and taking equipment which comprises a mold carrying unit, a demolding unit, a lens 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 to work, and dry sheets are taken out from an upper mold in batches after a lower mold of the mold is quickly split, so that automatic and quick batch mold splitting and sheet taking are 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; the dry contact lens mold splitting and taking equipment is compact in overall structure, 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 utility model relates to contact lens automation production technical field, concretely is a kind of contact lens dry piece mold separation and take piece equipment. BACKGROUND

[0002] In the production process of contact lens dry piece, after injection in lower mould, it is made with upper mould, after forming and curing, the upper mould and lower mould need to be opened, the lens is separated from mould, and the complete contact lens (dry piece) is taken out.

[0003] In the production stage of dry piece demolding separation and taking, artificial or semi-automatic mold separation is usually used, and the labor intensity of workers is large using this way, the production efficiency is relatively low, and the finished product rate and the qualified rate are relatively low, cannot satisfy market demand, therefore urgently need to provide a kind of solution. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of contact lens dry piece mold separation and take piece equipment, which can automatically carry and feed, quickly demold, efficiently mold separate and take piece, and batch into tray.

[0005] To achieve the above object, the utility model provides the following technical scheme.

[0006] A kind of contact lens dry piece mold separation and take piece equipment, including the mold carrying unit for carrying mould, the demolding unit for opening mould upper mould and lower mould, the take piece unit for taking out and moving dry piece, and the placing unit for receiving and placing dry piece;When working, the mold carrying unit carries multiple moulds from the feeding tray to the demolding unit;The demolding unit separates the upper mould and lower mould of mould and moves the upper mould carrying dry piece to the take piece unit, the take piece unit takes out dry piece from the upper mould and moves to the placing unit, and the placing unit moves and places dry piece into the receiving tray.

[0007] Compared with prior art, the utility model has the beneficial effects as follows.

[0008] In actual use, the tray carrying unit provides the mold separation and take piece mould in batch and quickly, improves mould feeding efficiency;The demolding unit and the take piece unit cooperate, quickly mold separate the lower mould, take out dry piece from the upper mould in batch, realize automatic batch and quick mold separation and take piece, improve dry piece taking efficiency;And the placing unit efficiently places dry piece into tray, avoids redundant turnover work, realizes dry piece quick tray receiving;The contact lens dry piece mold separation and take piece equipment has compact overall structure, reduces manual operation in mold separation and take piece production stage, improves mold separation and take piece efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the top view schematic diagram of the utility model;

[0010] Figure 2 is a schematic diagram of the three-dimensional structure of the present utility model;

[0011] Figure 3 is a schematic diagram of the structure of the mold carrying unit of the present utility model;

[0012] Figure 4 is a schematic diagram of the three-dimensional structure of the mold stripping unit of the present utility model;

[0013] Figure 5 is a schematic diagram of the three-dimensional structure of the mold pushing mechanism in the mold stripping unit of the present utility model;

[0014] Figure 6 is Figure 5 is an enlarged schematic diagram of position A in the present utility model;

[0015] Figure 7 is a schematic diagram of the structure of the film taking unit of the present utility model;

[0016] Figure 8 is a schematic diagram of the three-dimensional structure of the mold handling mechanism in the film taking unit of the present utility model;

[0017] Figure 9 is a schematic diagram of the structure of the placing unit of the present utility model;

[0018] Figure 10 is a schematic diagram of the placing unit of the present utility model. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0020] Reference Figures 1-10 As shown in the figure, a contact lens dry film mold separating and film taking equipment includes a mold carrying unit 100 for carrying molds, a mold stripping 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 film, and a placing unit 800 for collecting and placing the dry film;

[0021] The mold carrying unit 100 carries a plurality of molds from the feeding tray 911 to the mold stripping unit 200; the mold stripping unit 200 separates the upper mold and the lower mold of the mold to strip the dry film from the lower mold, and transfers the upper mold carrying the dry film to the film taking unit 700; the film taking unit 700 takes out the dry film from the upper mold and transfers it to the placing unit 800; and the placing unit 800 transfers and places the dry film into the collecting tray 921.

[0022] In actual use, the disc carrying unit quickly provides a plurality of molds to be demolded and sheeted in batches, improving the mold feeding efficiency; the demolding unit 200 and the sheet taking unit 700 cooperate to quickly demold the mold and take out the dry sheets in batches from the upper mold, realizing automatic and rapid batch demolding and sheet taking, improving the dry sheet taking efficiency; and the dry sheets are efficiently placed into the tray by the placing unit 800, avoiding the redundant turnover work, and realizing rapid tray feeding of the dry sheets; the contact lens dry sheet demolding and sheet taking device has a simple overall process, reduces the manual operation in the demolding and sheet taking production stage, and improves the demolding and sheet taking efficiency.

[0023] In the embodiment, the feeding end of the mold carrying unit 100 is provided with a feeding bin 910 for providing a feeding tray 911 to the mold carrying unit 100, and the discharging end of the placing unit 800 is provided with a collecting bin 920 for providing a collecting tray 921 to the placing unit 800.

[0024] Specifically, the feeding bin 910 and the collecting bin 920 can continuously provide the feeding tray 911 and the collecting tray 921, improving the efficiency of the equipment at the feeding and collecting ends, so that the equipment is further adapted to the automatic production process.

[0025] In the embodiment, the mold carrying unit 100 includes a mold carrying tool 110, a mold carrying displacement mechanism 120 for driving the mold carrying tool 110 to displace, 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 feeding sliding table 160 for feeding the turned over mold to the demolding unit 200; the mold carrying displacement mechanism 120 drives the mold carrying tool 110 to carry and place the mold on the mold turning frame 130, and the mold turning frame 130 fixes the mold; the mold feeding sliding table mechanism 160 moves to the mold turning frame 130, the mold turning mechanism 140 drives the mold turning frame 130 to turn over the mold, and places the mold on the mold feeding sliding table mechanism 160, and the mold feeding sliding table mechanism 160 moves the mold to the demolding unit 200.

[0026] Specifically, the mold turning frame 130 adopts the structure of a suction cup frame to fix and place the mold to be demolded; the mold carrying tool 110 can adopt a suction cup or a gripper to realize picking and placing of the mold; the mold turning mechanism 140 includes a mold turning rotary driving device 141 and a mold turning lifting driving device 142 for driving the mold turning rotary driving device 141 to lift; the mold carrying displacement mechanism 120 drives the mold carrying tool 110 to carry a plurality of molds, and then the mold turning lifting driving device 142 cooperates with the mold turning rotary driving device 141 to turn over the mold, so that the upper mold faces downward and the outer convex surface of the lower mold faces upward; the mold is quickly moved to the demolding unit 200 by the mold feeding sliding table mechanism 160, so as to be subjected to subsequent demolding and demolding operation, improve the overall demolding and sheet taking efficiency, and greatly improve the mold feeding efficiency.

[0027] In this embodiment, the demolding unit 200 includes a demolding material handling mechanism 220 for handling the mold to be demolded, a mold falling frame 230 for placing the mold to be demolded, a demolding mechanism 210 for extruding and separating the mold, and a mold pushing mechanism 240 for pushing the demolded mold into the demolding conveying mechanism 260; the demolding material handling mechanism 220 handles the mold to be demolded from the discharge end of the mold handling unit 100 to the mold falling frame 230, the demolding mechanism 210 extrudes the lower mold of the mold to separate the upper mold from the lower mold, and the upper mold carrying the dry sheet is pushed from the mold falling frame 230 to the mold pushing mechanism 240, and the mold pushing mechanism 240 pushes the upper mold carrying the dry sheet into the demolding conveying mechanism 260, and the demolding conveying mechanism 260 conveys and transfers the demolded upper mold carrying the dry sheet.

[0028] Specifically, the demolding material handling mechanism 220 is responsible for handling the mold to be demolded, realizes continuous mold feeding, and places the mold to be demolded in the mold falling frame 230, realizes batch rapid feeding of the mold; the demolding mechanism 210 extrudes the lower mold, so that the upper mold carrying the dry sheet is separated from the lower mold, and the upper mold carrying the dry sheet is sent from the mold falling frame 230 to the mold pushing mechanism 240, realizing batch rapid separation of the lower mold and the upper mold; then the mold pushing mechanism 240 pushes the upper mold carrying the dry sheet into the demolding conveying mechanism 260, and conveys and transfers the upper mold carrying the dry sheet to the sheet taking unit 700 for subsequent dry sheet taking operation, which has very practicality and universality; the demolding unit 200 uses the demolding mechanism to cooperate with the mold falling frame to complete the rapid demolding of the upper mold carrying the dry sheet, and the mold pushing mechanism cooperates with the demolding conveying mechanism to quickly convey and transfer the upper mold carrying the dry sheet separated from the lower mold; improve the efficiency of contact lens dry sheet production.

[0029] In this embodiment, a plurality of mold falling holes 231 are formed on the mold falling frame 230, and the mold falling holes 231 are used for feeding the upper mold carrying the dry sheet; the demolding material handling mechanism 220 handles the mold to be demolded to the mold falling hole 231; specifically, the diameter of the mold falling hole 231 is greater than that of the upper mold and less than that of the lower mold.

[0030] Specifically, the mold falling hole 231 is used to block and position the separated lower mold after demolding, so that the upper mold carrying the dry sheet can smoothly enter the mold pushing mechanism 240.

[0031] In this embodiment, the demolding material handling mechanism 220 includes a demolding material handling displacement driving device 221, a demolding material handling lifting driving device 222 drivingly connected to the execution end of the demolding material handling displacement driving device 221, and a demolding material handling tool 223 drivingly connected to the execution end of the demolding material handling lifting driving device 222; the side of the demolding material handling tool 223 is further provided with a surplus material pushing plate 224.

[0032] The demolding and conveying displacement driving device 221 drives the demolding and conveying lifting driving device 222 to move, and then drives the demolding and conveying tool 223 to carry the mold to be demolded from the mold carrying unit 100 to the demolding hole 231 on the mold falling frame 230; when the demolding and conveying tool 223 enters the mold falling frame 230, the demolding and conveying tool 223 drives the demolding plate 224 to push the lower mold above the demolding hole 231 away from the demolding hole 231.

[0033] Specifically, the demolding and conveying tool 223 can adopt a suction cup or a clamping jaw that can batch pick the mold to be demolded; in the demolding and conveying process, the demolding and conveying tool 223 is driven by the demolding and conveying displacement driving device 221 to drive the demolding and conveying lifting driving device 222 to carry the mold to be demolded; in the feeding process, the demolding and conveying tool 223 is pushed away from the demolding hole 231 by the excess material pushing plate 244 after demolding, so as to facilitate the placement of the mold to be demolded and remove the excess material after the last demolding.

[0034] In the embodiment, the demolding mechanism 210 includes a top and bottom mold lifting driving device 211, and a plurality of top mold columns 212 drivingly connected to the execution end of the top and bottom mold lifting driving device 211; the top and bottom mold lifting driving device 211 drives the top mold column 212 to press the bottom mold, until the bottom mold is separated from the upper mold carrying the dry sheet.

[0035] Specifically, the top mold column 212 adopts a column with a top bead at the end, the top and bottom mold lifting driving device 211 drives the top mold column 212 to descend, and the top bead at the end of the top mold column 212 contacts with the outer convex surface of the bottom mold, and the top mold column 212 contacts and extrudes the outer convex surface of the bottom mold; during the demolding process, the top mold column 212 continuously descends, and the dry sheet and the upper mold are pushed out of the inner concave wall of the bottom mold, and the mold demolding is completed.

[0036] In the embodiment, the mold pushing mechanism 240 includes a mold pushing driving device 241, a mold pushing fork plate 242 drivingly connected to the execution end of the mold pushing driving device 241, and a mold receiving groove plate 243 for carrying the upper mold; after demolding, the upper mold carrying the dry sheet enters the mold receiving groove plate 243 from the mold falling frame 230, and the mold pushing driving device 241 drives the mold pushing fork plate 242 to push the upper mold into the demolding conveying mechanism 260. The mold receiving groove plate 243 is provided with a plurality of mold guide grooves 246 for guiding the movement of the upper mold, and the distal end of the mold pushing fork plate 242 is provided with a plurality of mold pushing forks 245 matched with the mold guide grooves 246.

[0037] Specifically, the mold receiving groove plate 243 is provided with a plurality of guide mold grooves 246, each of which is used to independently guide an upper mold carrying a dry sheet. When the push mold driving device 241 drives the push mold fork plate 242, the push mold fork 245 at the end of the demolding fork plate 242 pushes the upper mold in the corresponding guide mold groove 246, realizing the unified action of the plurality of upper molds, completing the batch of upper molds, and efficiently pushing the upper molds carrying the dry sheets after demolding to the demolding conveying mechanism 260 for conveying the demolded upper molds to the next station.

[0038] In this embodiment, the mold receiving groove plate 243 is also provided with an upper mold positioning mechanism 250, and the mold receiving groove plate 243 is provided with an upper mold positioning hole 244; the execution end of the upper mold positioning mechanism 250 passes through the upper mold positioning hole 244 to position the upper mold carrying the dry sheet after demolding into the mold receiving groove plate 243. The upper mold positioning mechanism 250 includes an upper mold positioning driving device 251, and an upper mold positioning column 252 installed at the execution end of the upper mold positioning driving device 251 and passing through the upper mold positioning hole 244; before the upper mold carrying the dry sheet enters the mold receiving groove plate 243, the upper mold positioning driving device 251 drives the upper mold positioning column 252 to pass through the upper mold positioning hole 244, and the upper mold carrying the dry sheet after demolding is positioned at the end of the upper mold positioning column 252; when the push mold driving device 241 drives the push mold fork plate 242 to contact and push the upper mold, the upper mold positioning driving device 251 drives the upper mold positioning column 252 to retract, canceling the positioning of the upper mold.

[0039] Specifically, the upper mold positioning mechanism 250 is used to position the upper mold carrying the dry sheet falling into the mold receiving groove plate 243 during the demolding process, avoiding deviation during falling or entering.

[0040] In this embodiment, the sheet taking unit 700 includes a sheet taking carrier plate 710 for placing a plurality of upper molds carrying dry sheets, an upper mold handling mechanism 720 for blocking and pushing the upper mold, a demolding mechanism 740 for pressing the upper mold to separate the upper mold from the dry sheet, and a dry sheet transfer mechanism 730 for picking up and transferring the dry sheet after demolding; the upper mold carrying the dry sheet is placed on the sheet taking carrier plate 710, the demolding mechanism 740 pushes the upper mold against the upper mold handling mechanism 720, and the demolding mechanism 740 continuously presses the upper mold to separate the upper mold from the dry sheet; the dry sheet transfer mechanism 730 picks up the dry sheet after demolding from the upper mold and carries the dry sheet to the placing unit 800, and the upper mold handling mechanism 720 pushes the demolded upper mold away from the sheet taking carrier plate 710.

[0041] In actual use, the film taking carrier plate 710 is used to place the upper mold loaded with the dry film which has been separated from the lower mold, the upper mold stripping mechanism 740 pushes the upper mold to abut against the upper mold handling mechanism 720, continuously pushes and extrudes the upper mold, so that the upper mold is deformed to a certain extent to separate the dry film attached thereto; the dry film transfer mechanism 730 picks up and transfers the dry film separated from the upper mold out of the film taking carrier plate 710, and the upper mold handling mechanism 720 pushes the upper mold residue separated from the dry film out of the film taking carrier plate 710, and leaves a space for the next film taking operation; the film taking unit 700 uses the upper mold handling mechanism to position and extrude the upper mold together with the upper mold stripping mechanism to complete the separation of the upper mold and the dry film, realize batch dry film stripping, and quickly transfer the separated dry film and the upper mold out of the film taking carrier plate through the dry film transfer mechanism and the upper mold handling mechanism, realize the action of quickly taking the film and cleaning the mold residue, realize automatic film taking operation, and improve the overall processing efficiency of the contact lens dry film.

[0042] In this embodiment, the film taking carrier plate 710 is provided with a plurality of upper mold grooves 711 for placing the upper mold; the upper mold stripping mechanism 740 includes an upper mold driving device 741 and an extrusion push plate 742 connected with the driving end of the upper mold driving device 741; the upper mold driving device 741 drives the extrusion push plate 742 to push the upper mold loaded with the dry film to move in the upper mold groove 711, and continuously press the upper mold loaded with the dry film to the upper mold handling mechanism 720 until the upper mold and the dry film are separated. Specifically, the upper end surface of the film taking carrier plate 710 is provided with a plurality of upper mold grooves 711 for guiding the upper mold to move, so as to avoid the deviation of the upper mold during movement and improve the efficiency of the separation of the upper mold and the dry film.

[0043] In this embodiment, the edge of the extrusion push plate 742 is provided with an extrusion concave tooth 743; specifically, the extrusion concave tooth 743 with a certain concave arc can prevent the deviation of the upper mold during pushing.

[0044] In this embodiment, the dry film transfer mechanism 730 includes a transfer displacement driving device 731, a transfer rotation driving device 732 and a transfer tool 733; the transfer displacement driving device 731 drives the transfer rotation driving device 732 to drive the transfer tool 733 to the film taking carrier plate 710, picks up and transfers the dry film after stripping out of the film taking carrier plate 710; during picking up and transferring, the transfer rotation driving device 732 drives the transfer tool 733 to rotate to accurately realize picking up and placing.

[0045] Specifically, the transfer displacement driving device 731 is an XZ-axis double-shaft linear motor, used to drive the transfer rotating driving device 732 and the transfer tool 733 to move in double axes. The transfer tool 733 is a suction cup or a gripper, which can pick up the dry sheet. The transfer rotating driving device 732 can rotate the transfer tool 733 as needed, and rotate the transfer tool 733 in the processes of picking up, transferring and placing, so as to improve the adaptability of the transfer action to various equipment layouts.

[0046] In the embodiment, the upper mold processing mechanism 720 includes an upper mold processing driving device 721 and an upper mold connecting plate 722 connected with the driving end of the upper mold processing driving device 721. The end of the upper mold connecting plate 722 is provided with a positioning tooth plate 723. The demolding mechanism 740 pushes the upper mold loaded with the dry sheet and abuts against the positioning tooth plate 723, and continuously extrudes 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 drive the positioning tooth plate 723 to push the upper mold separated from the dry sheet, so that the upper mold moves away from the sheet taking carrier plate 710.

[0047] Specifically, the positioning tooth plate 723 assists in positioning the upper mold in the processes of extruding and separating the upper mold and in the process of pushing the separated upper mold, so as to avoid the deviation of the upper mold in the pushing process.

[0048] In the embodiment, the sheet taking carrier plate 710 is also provided with an upper mold collecting hopper 770. 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 separated from the dry sheet into the collecting hopper 770. The collecting hopper 770 is used to collect the residual material of the upper mold separated from the dry sheet.

[0049] In the embodiment, the shaping mechanism 750 and the shaping lifting mechanism 760 driving the shaping mechanism 750 to lift are also included. When the upper mold loaded with the dry sheet is pushed and abuts against the upper mold processing mechanism 720, the shaping lifting mechanism 760 drives the shaping mechanism 750 to lift, so that the driving end of the shaping mechanism 750 penetrates through the sheet taking carrier plate 710 and extends into the concave surface of the upper mold.

[0050] Specifically, the driving end of the shaping mechanism 750 extends into the concave surface of the upper mold, supports the concave surface of the upper mold to a certain extent, avoids the serious deformation of the upper mold in the extrusion demolding process of the demolding mechanism 740 and in the sheet taking process of the dry sheet transfer mechanism 730 after demolding, reduces the damage or falling of the dry sheet caused by the serious deformation of the upper mold, improves the success rate of sheet taking, and reduces the waste sheet.

[0051] In the embodiment, the taking plate carrier 710 is provided with a shaping hole 712 through which the shaping mechanism 750 passes. The shaping mechanism 750 comprises a shaping rod 752 and a rotary driving device 751 for driving the shaping rod 752 to rotate; the output end of the rotary driving device 751 is connected with a plurality of shaping rods 752, and the rotary driving device 751 drives the shaping rod 752 extending into the concave surface of the upper mold to rotate. Specifically, the shaping rod 752 extends into the concave surface of the upper mold to support the concave surface of the upper mold to a certain extent, avoiding excessive extrusion, and the rotatable shaping rod 752 can rotate as required, facilitating demolding.

[0052] In the embodiment, a lifting guide rod 761 is further included, and the execution end of the shaping lifting mechanism 760 is connected with and drives the shaping mechanism 750 to slide up and down on the lifting guide rod 761, thereby driving the shaping rod 752 of the shaping mechanism 750 to extend into the concave surface of the upper mold.

[0053] In the embodiment, the placing unit 800 comprises a sheet turning assembly 810, a tray placing rack 840 for placing a material receiving tray 921, a sheet turning driving device 820 for driving the sheet turning assembly 810 to turn, and a tool driving mechanism 830 for driving the sheet turning driving device 820 to move.

[0054] The dry sheet taken out of the mold is transported to the sheet turning assembly 810, which fixes the dry sheet; the sheet turning driving device 820 drives the sheet turning assembly 810 to turn so that the dry sheet fixed on the sheet turning assembly 810 is turned over; the tool driving mechanism 830 drives the sheet turning driving device 820 with the sheet turning assembly 810 to move to the tray placing rack 840, and the sheet turning assembly 810 places the dry sheet into the material receiving tray 921.

[0055] Specifically, the sheet turning assembly 810 is used to fix the dry sheet with a specific incoming direction; the tray placing rack 921 is used to temporarily place the empty material receiving tray 921, and the sheet turning driving device 820 can adopt a rotary air cylinder to drive the sheet turning assembly 810 to turn over, so that the fixed dry sheet changes the fixed direction, facilitating subsequent tray placing action; the placing unit 800 adopts the sheet turning assembly to load and fix a plurality of dry sheets, thereby increasing the number of single tray placing and placing; the sheet turning driving device realizes secondary direction change of the incoming dry sheet, and adapts to various tray placing and placing state requirements; the tool driving mechanism drives the sheet turning driving device and the sheet turning assembly to move reciprocatingly quickly and stably, realizes automatic and rapid batch dry sheet tray placing of the contact lens dry sheet, and improves the overall production efficiency of the contact lens.

[0056] In the embodiment, the sheet turning assembly 810 comprises a tool rack 811 and a plurality of pickup assemblies 812 mounted on the tool rack 811; the pickup assembly 812 is used to fix the dry sheet transported.

[0057] Specifically, the picking assembly 812 can adopt a suction nozzle or a gripper, etc. that can realize dry film picking and placing; a plurality of picking assemblies 812 are installed on the tool holder 811, which can realize synchronous tray placing of a plurality of dry films, and improve the dry film tray placing efficiency.

[0058] In the embodiment, the tool driving mechanism 830 includes a tool displacement driving device 831 and a tool lifting driving device 832 drivingly connected with the execution end of the tool displacement driving device 831; the tool displacement driving device 831 drives the tool lifting driving device 832 to move the film turning assembly 810 to the material receiving tray 921 together with the film turning driving device 820. Specifically, the tool displacement driving device 831 can adopt a linear motor, and the tool lifting driving device 832 can adopt a pneumatic cylinder.

[0059] In the embodiment, the film turning assembly 810 is further provided with an electrostatic dust removal assembly 880; when the tool driving mechanism 830 drives the film turning driving device 820 to move the film turning assembly 810 through the electrostatic dust removal assembly 880, the electrostatic dust removal assembly 880 performs dust removal work on the dry film, thereby improving the product quality.

[0060] In the embodiment, the tray placing rack 840 is further provided with a tray moving driving mechanism 850 and a tray moving tool 860 drivingly connected with the execution end of the tray moving driving mechanism 850; the tray moving driving mechanism 850 drives the tray moving tool 860 to carry the material receiving tray 921 loaded with the dry film out of the tray placing rack 840.

[0061] In the embodiment, the tray moving driving mechanism 850 includes a tray displacement driving device 851, a tray lifting driving device 852 drivingly connected with the execution end of the tray displacement driving device 851, and a tool turning driving device 853 drivingly connected with the execution end of the tray lifting driving device 852; the tray displacement driving device 851 drives the tray lifting driving device 852 to move with the tool turning driving device 853, so that the tray moving tool 860 picks up the material receiving tray 921 loaded with the dry film at the tray placing rack 840.

[0062] Specifically, the tray displacement driving device 851 can adopt a linear motor, the tray lifting driving device 852 can adopt a pneumatic cylinder, and the tray moving tool 860 can adopt a gripper or a pneumatic disc, etc. that can pick up and place the material receiving tray 921.

[0063] In the embodiment, the execution end of the tool steering driving device 853 is drivingly connected with two plate moving tools 860; one of the plate moving tools 860 picks up the loaded material receiving plate 921 with dry sheets at the plate placing rack 840, and the other plate moving tool 860 picks up the unloaded material receiving plate 921 at the receiving plate; when the tool steering driving device 853 rotates, the plate moving tool 860 that picks up the unloaded material receiving plate 921 rotates to the plate placing rack 840; at the same time, the plate moving tool 860 that picks up the loaded material receiving plate 921 with dry sheets moves to the receiving plate.

[0064] In the embodiment, the two plate moving tools are preferably used to realize synchronous clamping and placing of the double tools, and the positions of the unloaded and loaded material receiving plates 921 are rotated and changed by the tool steering driving device 853, so that the material receiving plate 921 is quickly fed and discharged in a single action.

[0065] In the embodiment, the demolding unit 200 and the sheet taking unit 700 are connected with a mold trimming unit 300 for trimming the edges of the dry sheets, a softening unit 400 for softening the dry sheets, a pre-separation mold unit 500 for pre-separating the dry sheets from the upper mold, and a sheet taking and moving unit 600 for transferring the upper mold with the dry sheets between the pre-separation mold unit 500 and the sheet taking unit 700; the upper mold with the dry sheets enters the mold trimming unit 300 from the demolding unit 200, and the dry sheets are trimmed by the mold trimming unit 300; the trimmed dry sheets and the upper mold enter the softening unit 400 from the mold trimming unit 300, and the dry sheets are softened by the softening unit 400; the softened dry sheets and the upper mold are moved to the pre-separation mold unit 500, the dry sheets attached to the upper mold are broken from the vacuum state, and the dry sheets are pre-separated from the upper mold; the pre-separated dry sheets and the upper mold are moved to the sheet taking and moving unit 600, and the upper mold with the dry sheets is moved to the sheet taking unit 700 by the sheet taking and moving unit 600.

[0066] Specifically, the mold trimming unit 300 removes the edge and corner materials of the dry sheets, improves the quality of the finished contact lenses, and avoids defects such as burrs; the softening unit 400 softens the dry sheets by humidifying and heating, so as to facilitate demolding; the pre-separation mold unit 500 breaks the vacuum state between the dry sheets and the upper mold, so as to facilitate subsequent demolding and sheet taking actions; the sheet taking and moving unit 600 is completed by a heating table and a moving mechanical arm, and the dry sheets after breaking the vacuum are temporarily placed on the heating table, the dry sheets and the lower mold are further heated and softened, and then the upper mold with the dry sheets is moved to the sheet taking unit 700 in batches, so as to continuously and automatically feed the sheet taking unit 700.

[0067] Specifically, the mold trimming unit 300, the softening unit 400, the pre-separation mold unit 500, and the sheet taking and moving unit 600 can be realized by the technical features and technical solutions disclosed in the prior art, and thus the embodiment will not be described in detail.

[0068] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the scope defined by the spirit of the present application.

Claims

1. A contact lens dry cast demolding apparatus, characterized by, The mold carrying unit (100) is used for carrying the mold, the demolding unit (200) is used for opening the upper mold and the lower mold of the mold, the piece taking unit (700) is used for taking out and transferring the dry piece, and the placing unit (800) is used for placing the dry piece into a tray; During operation, the mold carrying unit (100) carries a plurality of molds from the feeding tray (911) to the demolding unit (200); the demolding unit (200) separates the upper mold and the lower mold of the mold and transfers the upper mold carrying the dry piece to the piece taking unit (700); the piece taking unit (700) takes out the dry piece from the upper mold and transfers the dry piece to the placing unit (800); and the placing unit (800) transfers and places the dry piece into the receiving tray (921).

2. The contact lens dry cast demolding apparatus of claim 1, wherein, The feeding end of the mold carrying unit (100) is provided with a feeding bin (910) for providing the mold carrying unit (100) with the feeding tray (911), and the discharging end of the placing unit (800) is provided with a receiving bin (920) for providing the placing unit (800) with the receiving tray (921).

3. The contact lens dry cast demolding apparatus of claim 1, wherein, The mold carrying unit (100) comprises a mold carrying tool (110), a mold carrying displacement mechanism (120) for driving the mold carrying tool (110) to displace, a mold turning frame (130), a mold turning mechanism (140) for driving the mold turning frame (130) to turn and lift, and a mold feeding sliding table mechanism (160) for feeding the turned mold to the demolding unit (200). During operation, the mold carrying displacement mechanism (120) drives the mold carrying tool (110) to carry and place the mold on the mold turning frame (130), and the mold turning frame (130) fixes the mold; the mold feeding sliding table mechanism (160) moves to the mold turning frame (130), the mold turning mechanism (140) drives the mold turning frame (130) to turn the mold, and places the mold on the mold feeding sliding table mechanism (160), and the mold feeding sliding table mechanism (160) transfers the mold to the demolding unit (200).

4. The contact lens dry cast demolding apparatus of claim 1, wherein, The demolding unit (200) comprises a demolding feeding mechanism (220) for carrying the mold to be demolded, a mold falling frame (230) for placing the mold to be demolded, a mold separating mechanism (210) for pressing and separating the mold, and a mold pushing mechanism (240) for pushing the demolded mold into the demolding conveying mechanism (260); During operation, the demolding feeding mechanism (220) carries the mold to be demolded from the discharging end of the mold carrying unit (100) to the mold falling frame (230), the mold separating mechanism (210) presses the lower mold of the mold to separate the upper mold and the lower mold, and pushes the upper mold carrying the dry piece from the mold falling frame (230) into the mold pushing mechanism (240), the mold pushing mechanism (240) pushes the upper mold carrying the dry piece into the demolding conveying mechanism (260), and the demolding conveying mechanism (260) conveys and transfers the demolded upper mold carrying the dry piece.

5. The contact lens dry cast demolding apparatus of claim 4, wherein, The falling die frame (230) is provided with a plurality of falling die holes (231) for feeding the upper die loaded with the dry sheet; the demolding material conveying mechanism (220) conveys the mold to be demolded to the falling die hole (231); the demolded upper die loaded with the dry sheet passes through the falling die hole (231) and enters the pushing die mechanism (240); The demolding material conveying mechanism (220) comprises a demolding material conveying displacement driving device (221), a demolding material lifting driving device (222) driving connected with the execution end of the demolding material conveying displacement driving device (221), and a demolding material tool (223) driving connected with the execution end of the demolding material lifting driving device (222); the side of the demolding material tool (223) is further provided with a surplus material pushing plate (224); During operation, the demolding material conveying displacement driving device (221) drives the demolding material lifting driving device (222) to move, thereby driving the demolding material tool (223) to convey the mold to be demolded from the discharging end of the mold conveying unit (100) to the falling die hole (231) on the falling die frame (230); when the demolding material tool (223) enters the falling die frame (230), the demolding material tool (223) drives the surplus material pushing plate (224) to push the demolded lower die above the falling die hole (231) away from the falling die hole (231); The demolding mechanism (210) comprises a top and bottom die lifting driving device (211) and a plurality of top die columns (212) driving connected with the execution end of the top and bottom die lifting driving device (211); the top and bottom die lifting driving device (211) drives the top die column (212) to press the bottom die, until the bottom die is separated from the upper die loaded with the dry sheet.

6. The contact lens dry cast demolding apparatus of claim 4, wherein, The pushing die mechanism (240) comprises a pushing die driving device (241), a pushing die fork plate (242) driving connected with the execution end of the pushing die driving device (241), and a die receiving groove plate (243) for bearing the upper die; During operation, the demolded upper die loaded with the dry sheet enters the die receiving groove plate (243) from the falling die frame (230), and the pushing die driving device (241) drives the pushing die fork plate (242) to push the upper die into the demolding 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 pushing die fork plate (242) is provided with a plurality of pushing die forks (245) matched with the die guide grooves (246); The die receiving groove plate (243) is further provided with an upper die positioning mechanism (250), and the die receiving groove plate (243) is provided with an upper die positioning hole (244); The execution end of the upper die positioning mechanism (250) passes through the upper die positioning hole (244) to position the demolded upper die loaded with the dry sheet entering the die receiving groove plate (243); The upper die positioning mechanism (250) comprises an upper die positioning driving device (251) and an upper die positioning column (252) driving connected with the execution end of the upper die positioning driving device (251). Before the upper mold loaded with the dry film enters the mold receiving groove plate (243), the upper mold positioning driving device (251) drives the upper mold positioning column (252) to pass through the upper mold positioning hole (244), and after demolding, the upper mold loaded with the dry film is positioned at the end of the upper mold positioning column (252); when the mold pushing driving device (241) drives the mold pushing fork plate (242) to contact and push the upper mold, the upper mold positioning driving device (251) drives the upper mold positioning column (252) to retract, thereby canceling the positioning of the upper mold.

7. The contact lens dry cast demolding apparatus of claim 1, wherein, The film taking unit (700) comprises a film taking carrier plate (710) for placing a plurality of upper molds loaded with dry films, an upper mold handling mechanism (720) for blocking and pushing the upper mold, a demolding mechanism (740) for pressing the upper mold to separate the upper mold from the dry film, and a dry film transfer mechanism (730) for picking up and transferring the dry film after demolding; In operation, the upper mold loaded with the dry film is placed at the film taking carrier plate (710), the demolding mechanism (740) pushes the upper mold against the upper mold handling mechanism (720), and the demolding mechanism (740) continuously presses the upper mold to separate the upper mold from the dry film; the dry film transfer mechanism (730) picks up the dry film after demolding and transfers the dry film to the placing unit (800), and the upper mold handling mechanism (720) pushes the demolded upper mold away from the film taking carrier plate (710).

8. The contact lens dry cast demolding apparatus of claim 7, wherein, The film taking carrier plate (710) is provided with a plurality of upper mold grooves (711) for placing the upper mold; the demolding mechanism (740) comprises a top mold driving device (741) and a pressing plate (742) connected to the top mold driving device (741) at the driving end; the edge of the pressing plate (742) is provided with pressing concave teeth (743); When separating the upper mold from the dry film, the top mold driving device (741) drives the pressing plate (742) to push the upper mold loaded with the dry film to move in the upper mold groove (711), and continuously press the upper mold loaded with the dry film to the upper mold handling mechanism (720) until the upper mold is separated from the dry film.

9. The contact lens dry cast demolding apparatus of claim 7, wherein, The upper mold handling mechanism (720) comprises an upper mold handling driving device (721) and an upper mold connecting plate (722) connected to the upper mold handling driving device (721) at the driving end; the end of the upper mold connecting plate (722) is provided with a positioning tooth plate (723); In operation, the demolding mechanism (740) pushes the upper mold loaded with the dry film against the positioning tooth plate (723) and continuously presses until the upper mold is separated from the dry film; the upper mold handling driving device (721) drives the upper mold connecting plate (722) to push the demolded upper mold to move away from the film taking carrier plate (710).

10. The contact lens dry cast demolding apparatus of claim 7, wherein, Further comprising a shaping mechanism (750) and a shaping lifting mechanism (760) for driving the shaping mechanism (750) to lift; When the upper mold carrying the dry film is pushed and abuts against the upper mold processing mechanism (720), the shaping lifting mechanism (760) drives the shaping mechanism (750) to lift, so that the execution end of the shaping mechanism (750) penetrates through the film taking carrier plate (710) and extends into the concave surface of the upper mold; the shaping hole (712) is formed in the film taking carrier plate (710) to facilitate the penetration of the shaping mechanism (750); The shaping mechanism (750) comprises a shaping rod (752) and a rotary driving device (751) for driving the shaping rod (752) to rotate; the output end of the rotary driving device (751) is connected with a plurality of shaping rods (752), and the rotary driving device (751) drives the shaping rod (752) extending into the concave surface of the upper mold to rotate; The lifting guide rod (761) is further provided, and the execution end of the shaping lifting mechanism (760) is connected with and drives the shaping mechanism (750) to slide up and down on the lifting guide rod (761), so as to drive the shaping rod (752) of the shaping mechanism (750) to extend into the concave surface of the upper mold.

11. The contact lens dry cast demolding apparatus of claim 1, wherein, The placing unit (800) comprises a film turning assembly (810), a disc placing rack (840) for placing the material receiving disc (921), a dry film turning driving device (820) for driving the film turning assembly (810) to turn, and a tool driving mechanism (830) for driving the dry film turning driving device (820) to move; When working, the dry film taken out of the mold is conveyed to the film turning assembly (810), and the dry film is fixed by the film turning assembly (810); the dry film turning driving device (820) drives the film turning assembly (810) to turn so that the dry film fixed on the film turning assembly (810) is turned over; the tool driving mechanism (830) drives the dry film turning driving device (820) to move to the disc placing rack (840) with the film turning assembly (810), and the dry film is placed into the material receiving disc (921) by the film turning assembly (810).

12. The contact lens dry cast demolding apparatus of claim 11, wherein, The film turning assembly (810) comprises a tool rack (811) and a plurality of pickup assemblies (812) mounted on the tool rack (811); the pickup assembly (812) is used for fixing the dry film conveyed; The tool driving mechanism (830) comprises a tool displacement driving device (831) and a tool lifting driving device (832) drivingly connected with the execution end of the tool displacement driving device (831); the tool displacement driving device (831) drives the tool lifting driving device (832) to move the film turning assembly (810) to the material receiving disc (921) with the dry film turning driving device (820); The film turning assembly (810) is further provided with an electrostatic dust removal assembly (880); when the tool driving mechanism (830) drives the dry film turning driving device (820) to move through the electrostatic dust removal assembly (880) with the film turning assembly (810), the electrostatic dust removal assembly (880) performs dust removal operation on the dry film.

13. The contact lens dry cast demolding apparatus of claim 11, wherein, The disc placing rack (840) is further provided with a disc moving driving mechanism (850) and a disc moving tool (860) drivingly connected with the execution end of the disc moving driving mechanism (850); The disk moving driving mechanism (850) drives the disk moving tool (860) to carry the tray (921) loaded with the dry film out of the tray arranging rack (840); The disk moving driving mechanism (850) comprises a disk moving displacement driving device (851), a disk moving lifting driving device (852) connected with the driving end of the disk moving displacement driving device (851), and a tool turning driving device (853) connected with the driving end of the disk moving lifting driving device (852); The disk moving displacement driving device (851) drives the disk moving lifting driving device (852) to move with the tool turning driving device (853), so that the disk moving tool (860) picks up the tray (921) loaded with the dry film at the tray arranging rack (840); The driving end of the tool turning driving device (853) is connected with two disk moving tools (860); when one of the disk moving tools (860) picks up the tray (921) loaded with the dry film at the tray arranging rack (840), the other disk moving tool (860) picks up the empty tray (921) at the tray collecting rack; when the tool turning driving device (853) rotates, the disk moving tool (860) picking up the empty tray (921) rotates to the tray arranging rack (840); at the same time, the disk moving tool (860) picking up the tray (921) loaded with the dry film moves to the tray collecting rack.

14. The contact lens dry cast demolding apparatus of claim 1, wherein, The mold repairing unit (300) is arranged between the demolding unit (200) and the film taking unit (700), and the film taking and moving unit (600) is arranged between the demolding unit (200) and the film taking unit (700); The tray (921) loaded with the dry film is moved from the demolding unit (200) to the mold repairing unit (300), and the dry film is trimmed by the mold repairing unit (300); the trimmed dry film and the tray (921) are moved from the mold repairing unit (300) to the softening unit (400), and the dry film is softened by the softening unit (400); the softened dry film and the tray (921) are moved to the pre-separation unit (500), the dry film is broken vacuum by the pre-separation unit (500), and the dry film is pre-separated from the tray (921); the pre-separated dry film and the tray (921) are moved to the film taking and moving unit (600), and the tray (921) loaded with the dry film is moved to the film taking unit (700) by the film taking and moving unit (600).

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