Dry contact lens color printing equipment

Abstract

The utility model relates to the technical field of contact lens automatic production, in particular to contact lens dry sheet color printing equipment which comprises a dry sheet feeding unit, a dry sheet carrier used for bearing dry sheets, a carrying unit used for operating the dry sheet carrier and a dry sheet color printing unit used for printing patterns on the dry sheets. The dry sheet receiving unit is used for receiving the printed dry sheets; the dry sheet to be subjected to transfer printing is moved to a carrying unit and is carried and placed on a dry sheet carrier in the carrying unit; the dry sheet carrier moves to a dry sheet color printing unit for pattern color printing; moving the dry sheet carrier to a dry sheet receiving unit, and carrying the dry sheet carrier to a receiving disc; the dry contact lens color printing equipment replaces a traditional die printing production process, so that complex process steps are reduced, and the production efficiency is greatly improved; the dry sheets can be stored in advance, and the stored dry sheets are subjected to rapid color printing according to market requirements, so that rapid on-demand production is realized, the scheduling is reduced, the production efficiency of a production line is improved, and the market adaptability is extremely high.

Description

TECHNICAL FIELD

[0001] The utility model relates to contact lens automation production technical field, concretely is a kind of contact lens dry piece printing equipment. BACKGROUND

[0002] In the production of color contact lenses, the conventional lens pattern printing is to print the pattern in the mold, and then form the liquid raw material in the mold to achieve the printing effect. This method is relatively complex, and it is difficult to quickly produce color contact lenses in large quantities.

[0003] Dry piece printing is a special contact lens manufacturing process. By placing the printing after the mold separation and piece taking, colorless transparent pieces can be produced on a large scale, which is convenient for production scheduling and saves production costs. After mold separation and piece taking, the dry piece is printed with different patterns and colors to become different personalized beauty lens products.

[0004] Currently, the technical support of related equipment is relatively weak, there is no mature equipment that can directly print on dry pieces, and it cannot meet market demand, so it is urgent to provide a solution. INVENTION CONTENTS

[0005] The utility model aims at providing a contact lens dry piece printing equipment that can realize rapid on-demand production, reduce scheduling and improve production efficiency.

[0006] To achieve the above purpose, the utility model provides the following technical scheme.

[0007] A contact lens dry piece printing equipment includes a dry piece feeding unit, a dry piece carrier for carrying dry pieces, a carrying unit for moving the dry piece carrier, a dry piece printing unit for printing patterns on dry pieces, and a dry piece collecting unit for collecting printed dry pieces.

[0008] When working, the dry piece feeding unit moves the dry piece to be printed to the carrying unit. The dry piece feeding unit carries and places the dry piece to be printed on the dry piece carrier in the carrying unit. The carrying unit moves the dry piece carrier with the dry piece to be printed to the dry piece printing unit, and the dry piece printing unit prints patterns on the dry piece to be printed. The carrying unit moves the dry piece carrier with the printed dry piece to the dry piece collecting unit. The dry piece collecting unit carries the printed dry piece from the dry piece carrier to the collecting tray, and completes the dry piece unloading.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] In actual use, the loading, running, color printing and unloading of the contact lens dry sheet are cooperated; the dry sheet loading unit is matched with the carrying unit, the automatic placement of the dry sheet is realized, the dry sheet carrier is moved and circulated, the automatic loading of the dry sheet is completed, the dry sheet color printing unit quickly prints the dry sheet in batches, and the color printing efficiency is improved; in combination with the material receiving unit, the dry sheet after printing is quickly loaded into a tray, and the overall production efficiency and product quality of the dry sheet color printing operation are improved.

[0011] The contact lens dry sheet color printing equipment replaces the traditional mold printing production process, reduces the complex process steps, greatly improves the production efficiency, can store the dry sheet in advance, quickly prints the stored dry sheet according to market demand, thereby realizing quick on-demand production, reducing the scheduling, improving the production efficiency of the production line, and having strong market adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure schematic view of the utility model;

[0013] Figure 2 It is a three-dimensional structure schematic view of the utility model;

[0014] Figure 3 It is a three-dimensional structure schematic view of the dry sheet loading unit of the utility model;

[0015] Figure 4 It is a structure schematic view of the dry sheet loading unit of the utility model;

[0016] Figure 5 It is a structure schematic view of the carrying unit of the utility model;

[0017] Figure 6 It is a three-dimensional structure schematic view of the carrying unit of the utility model;

[0018] Figure 7 It is Figure 6 It is an enlarged structure schematic view of the middle B;

[0019] Figure 8 It is a three-dimensional structure schematic view of the carrying unit of the utility model from another angle;

[0020] Figure 9 It is an internal structure schematic view of the dry sheet carrier of the utility model;

[0021] Figure 10 It is a three-dimensional structure schematic view of the dry sheet color printing unit of the utility model;

[0022] Figure 11 It is Figure 10 It is an enlarged structure schematic view of the middle A;

[0023] Figure 12A structure schematic view of the dry sheet printing color unit of the utility model;

[0024] Figure 13 A structure schematic view of another perspective of the dry sheet printing color unit of the utility model;

[0025] Figure 14 A three-dimensional structure schematic view of the material receiving unit of the utility model. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0027] Reference Figures 1-14 As shown in the figure, a contact lens dry sheet printing color equipment includes a dry sheet feeding unit 200, a dry sheet carrier 800 for carrying dry sheets, a carrying unit 300 for operating the dry sheet carrier 800, a dry sheet printing color unit 400 for printing patterns on the dry sheets, and a dry sheet material receiving unit 500 for receiving the printed dry sheets; the dry sheet feeding unit 200 moves the dry sheets to be printed to the carrying unit 300; the dry sheet feeding unit 200 carries and places the dry sheets to be printed on the dry sheet carrier 800 in the carrying unit 300; the carrying unit 300 moves the dry sheet carrier 800 with the dry sheets to be printed to the dry sheet printing color unit 400, and the dry sheet printing color unit 400 prints patterns on the dry sheets to be printed; the carrying unit 300 moves the dry sheet carrier 800 with the printed dry sheets to the dry sheet material receiving unit 500; the dry sheet material receiving unit 500 carries the printed dry sheets from the dry sheet carrier 800 to the material receiving tray 710, and completes the dry sheet discharging.

[0028] The contact lens dry sheet printing color equipment integrates the feeding, operation, printing color and discharging of the contact lens dry sheets, realizes direct printing color on the dry sheets, and can realize automatic batch production. The contact lens dry sheet printing color equipment replaces the traditional mold printing production process, reduces the complex process steps, and greatly improves the production efficiency; in actual application, the dry sheets can be stored in advance, the stored dry sheets are quickly printed by using the contact lens dry sheet printing color equipment according to market demand, so that quick on-demand production is realized, the production efficiency of the production line is improved, and the contact lens dry sheet printing color equipment has strong market adaptability.

[0029] In the embodiment, the dry sheet feeding unit 200 includes a carrier tray carrying mechanism 210 for carrying the dry sheet carrier tray 110, a vision mechanism 220 for visually positioning the dry sheets, a carrier table mechanism 230 for transferring the dry sheets, and a dry sheet carrying mechanical arm 240 for carrying the dry sheets to the dry sheet carrier 800;

[0030] The tray carrying mechanism 210 carries the film tray 110 to the stage mechanism 230, the stage mechanism 230 moves the film tray 110 to the vision mechanism 220, the vision mechanism 220 visually positions the film to be printed in the film tray 110; the film carrying mechanical arm 240 carries the film from the film tray 110 to the film carrier 800, completing the film feeding.

[0031] The tray carrying mechanism 210 is used for carrying and feeding the film tray 110, improving the film feeding efficiency; the vision mechanism 220 visually positions the film to be printed in the film tray 110, so as to assist the film carrying mechanical arm 240 to accurately position and grasp, improve the accuracy in the film feeding and carrying process, and reduce the waste film; the empty film tray 110 is moved by the stage mechanism 230 to the tray carrying mechanism 210, waits for the tray carrying mechanism 210 to carry out the empty film tray 110, and carries the film tray 110 again into the stage mechanism 230, improves the film feeding efficiency, so as to expand the adaptation to multiple types of automatic production lines.

[0032] The film feeding unit 200 combines the film carrying, film identification and film carrying actions, cooperates with the vision mechanism to visually position and guide the film, and realizes the efficient and accurate film feeding in combination with the film carrying mechanical arm 240.

[0033] In the embodiment, the tray carrying mechanism 210 includes a tray moving driving device 211, a tray lifting driving device 212 drivenly connected with the tray moving driving device 211 at the execution end, and a tray tool 213 drivenly connected with the tray lifting driving device 212 at the execution end; the tray lifting driving device 212 drives the tray tool 213 to lift and move, so that the tray tool 213 realizes the pick-and-place action on the film tray 110; the tray moving driving device 211 drives the tray lifting driving device 212 and the tray tool 213 to move, thereby carrying the film to be printed.

[0034] Specifically, the tray moving driving device 211 can adopt a linear motor, the tray lifting driving device 212 can adopt a lifting cylinder; the tray tool 213 can adopt a gripper or a suction cup, which can realize the tray clamping and placing.

[0035] In the embodiment, the carrier mechanism 230 comprises a rotary table driving device 231 and a carrier table surface 232 connected with the rotary table driving device 231 at the driving end, and a plurality of carrier positioning grooves 233 are formed in the carrier table surface 232; the carrier transport mechanism 210 transports the dry plate carrier 110 to the carrier positioning groove 233, the rotary table driving device 231 drives the carrier table surface 232 to rotate, and drives the dry plate carrier 110 placed in the carrier positioning groove 233 to enter the visual mechanism 220, and after the carrier table surface 232 finishes the transport of the dry plate to be printed, the rotary table driving device 231 drives the carrier table surface 232 to move, and moves the empty dry plate carrier 110 to the carrier transport mechanism 210 for carrying out.

[0036] Specifically, the rotary table driving device 231 can adopt a rotary motor, the carrier mechanism 230 has a compact structure, the rotary table driving device 231 is used to drive the carrier table surface 232 to rotate, so that it rotates and feeds between the carrier transport mechanism 210 and the dry plate transport mechanical arm 240, which facilitates the feeding of the dry plate carrier 110 carrying dry plates and the carrying out of the empty dry plate carrier 110, thereby improving the production efficiency.

[0037] In the embodiment, a light supplementing lamp plate 250 is further arranged below the carrier table surface 232. Specifically, the light of the light supplementing lamp plate 250 passes through the carrier positioning groove 233 to supplement the light for the bottom of the dry plate carrier 110, and assist the visual mechanism 220 to visually recognize the dry plate.

[0038] In the embodiment, a carrier storage 100 is further arranged at the carrier transport mechanism 210; the carrier transport mechanism 210 transports the dry plate carrier 110 carrying the dry plate to be printed from the carrier storage 100 to the carrier mechanism 230; and the carrier transport mechanism 210 transports the empty dry plate carrier 110 from the carrier mechanism 230 to the carrier storage 100.

[0039] In the embodiment, the visual mechanism 220 comprises an identification lens 223 for identifying the dry plate and an identification column 221 for mounting the identification lens 223; the identification column 221 is mounted at one end of the carrier mechanism 230 close to the dry plate transport mechanical arm 240; and the identification lens 223 is slidably mounted on the identification column 221 by using a sliding rail module 222.

[0040] In actual application, the identification lens 223 acquires the image of the dry plate in the dry plate carrier 110, accurately positions the dry plate by using the identification points, and transmits the positioning to the dry plate transport mechanical arm 240, so as to provide precision calibration and assistance for the transport work of the dry plate transport mechanical arm 240, improve the transport efficiency and accuracy, avoid damaging the fragile dry plate, and reduce the loss of the dry plate.

[0041] In the embodiment, the dry film printing unit 400 comprises a pad printing head assembly 410, a pad printing lifting mechanism 430 for driving the pad printing head assembly 410 to lift, a stencil mechanism 440 for providing the pad printing head assembly 410 with a printing pattern, and a cleaning mechanism 420 for cleaning the pad printing head assembly 410; the pad printing lifting mechanism 430 comprises a lifting connecting plate 432 for mounting the pad printing head assembly 410, and a pad printing lifting driving device 431 for driving the lifting connecting plate 432 to lift.

[0042] The pad printing lifting mechanism 430 drives the pad printing head assembly 410 to the cleaning mechanism 420, and the cleaning mechanism 420 cleans the execution end of the pad printing head assembly 410; the pad printing lifting mechanism 430 drives the pad printing head assembly 410 to the stencil mechanism 440, so that the execution end of the pad printing head assembly 410 contacts the stencil mechanism 440 to obtain the printing pattern; and the pad printing lifting mechanism 430 drives the pad printing head assembly 410 to the dry film carrier 800, so that the ink on the execution end of the pad printing head assembly 410 is printed on the dry film on the dry film carrier 800.

[0043] In actual application, the pad printing lifting mechanism 430 can adjust the height of the pad printing head assembly 410 to meet the requirements of different heights in the cleaning, ink dipping, and printing actions in the dry film pad printing operation; the pad printing lifting mechanism 430 simultaneously drives multiple pad printing head assemblies 410 to the cleaning mechanism 420, and the cleaning mechanism 420 cleans the execution end of the pad printing head assembly 410 to avoid the influence of residual ink on the quality of the printing operation; the stencil mechanism 440 is ready with the printing pattern ink, and the pad printing head assembly 410 contacts to obtain; the pad printing lifting mechanism 430 drives the pad printing head assembly 410 with the printing pattern ink to the dry film carrier 800, and drives the pad printing head assembly 410 to contact the dry film on the dry film carrier 800, and prints the printing pattern ink on the dry film.

[0044] The dry film printing unit can complete the cleaning, ink dipping, and printing operations in one station, can realize single-time multi-batch printing on demand, has a compact structure, occupies a small space, and has high pad printing efficiency. Specifically, the pad printing lifting driving device 431 can adopt a linear motor to realize the lifting operation of the lifting connecting plate 432 at different heights; and the pad printing connecting plate 432 can be used to assemble multiple pad printing head assemblies 410 on demand.

[0045] In the embodiment, the pad printing head assembly 410 comprises a pad printing rubber head 411, a fine adjustment sliding table 412 for adjusting the installation position of the pad printing rubber head 411 in the Y axis, and an adjusting buckle 413 arranged at the upper adjusting end of the fine adjustment sliding table 412 and used for connecting with the lifting connecting plate 432. Specifically, the fine adjustment sliding table 412 can be a micro sliding table which is manually or automatically adjusted, the pad printing rubber head 411 is installed at the lower adjusting end of the fine adjustment sliding table 412 to realize the fine adjustment of the position of the pad printing rubber head 411 in the Y axis, the adjusting buckle 413 is arranged at the upper adjusting end of the fine adjustment sliding table 412 and connected with the lifting connecting plate 432, the adjusting buckle 413 is provided with an assembly hole, the fine adjustment sliding table 412 can be quickly adjusted by a bolt, and the adjusting buckle 413 is provided with a fine adjustment scale for conveniently marking the offset position to realize the fine adjustment of the position of the pad printing rubber head 411 in the X axis and improve the adaptability.

[0046] In the embodiment, the cleaning mechanism 420 comprises a cleaning overturning driving device 421, a belt disc assembly 423, and a wiping driving device 422 for driving the belt disc assembly 423 to wipe the pad printing head assembly 410, the belt disc assembly 423 and the wiping driving device 422 are both installed on a cleaning connecting plate 424, and the cleaning connecting plate 424 is drivingly connected with the execution end of the cleaning overturning driving device 421.

[0047] During the cleaning action, the cleaning overturning driving device 421 drives the cleaning connecting plate 424 to move the belt disc assembly 423 to below the pad printing head assembly 410, the pad printing lifting mechanism 430 drives the pad printing head assembly 410 to contact the belt disc assembly 423 to realize the cleaning and wiping.

[0048] Specifically, the cleaning overturning driving device 421 can be a rotary air cylinder for rotating the cleaning connecting plate 424, after cleaning, the cleaning overturning driving device 421 drives the belt disc assembly 423 to rotate back to avoid the collision of the pad printing head assembly 410 in the subsequent pad printing action, and the cleaning mechanism which can rotate back saves the equipment space.

[0049] In the embodiment, the belt disc assembly 423 comprises a cleaning belt disc 4231 and cleaning auxiliary rollers 4233 for tensioning the cleaning belt, the cleaning belt disc 4231 is fixed on the cleaning connecting plate 424 and connected with the output end of the wiping driving device 422, and the cleaning auxiliary rollers 4233 are all installed on a roller frame 4232 to tension and support the cleaning belt, the pad printing head assembly 410 contacts the tensioned cleaning belt to realize the ink wiping, and the roller frame 4232 is connected with the cleaning connecting plate 424.

[0050] Specifically, the cleaning belt disc 4231 is provided with two cleaning belt discs, one is used for winding the cleaning belt for cleaning the pad printing head assembly 410, and the other is used for winding the cleaned cleaning belt, and the wiping driving device 421 can be a rotary motor.

[0051] In the embodiment, the stencil mechanism 440 comprises a stencil body 443, a stencil body driving device 441 for driving the stencil body 443 to move, an ink box 444 for applying ink, and a top box frame 445 for supporting the ink box 444 and the stencil body 443 to slide against each other; the stencil body 443 and the ink box 444 always slide against each other; when the stencil body 443 is driven by the stencil body driving device 441 to move to the position of the pad printing head assembly 410, the stencil body 443 and the ink box 444 slide against each other, and the ink on the ink box 444 is applied on the stencil body 443, waiting for the pad printing head assembly 410 to contact the stencil body 443 and dip the ink.

[0052] Specifically, the stencil body 443 can be a patterned steel plate, the top box frame 445 is used for mounting the ink box 444, and the ink box 444 is always in contact with the stencil body 443; the stencil body 443 is driven by the stencil body driving device 441 to move, so that the ink in the ink box 444 is applied on the stencil body 443.

[0053] In the embodiment, the execution end of the stencil body driving device 441 is drivingly connected with a stencil body fine adjustment frame 442 for manually fine adjusting the position of the stencil body 443.

[0054] In the embodiment, the pad printing lifting mechanism 430, the stencil mechanism 440, and the cleaning mechanism 420 are all mounted on a pad printing frame body 450; and the pad printing lifting mechanism 430 is located above the dry film carrier 800.

[0055] In the embodiment, the carrying unit 300 comprises a carrying ring frame 320, a plurality of carrying sliding tables 340 for loading the dry film carrier 800, a positioning assembly 330 for positioning the carrying sliding tables 340, and a carrying driving device 310 for driving the carrying ring frame 320 to feed; the carrying sliding tables 340 are assembled on the carrying ring frame 320, the carrying driving device 310 drives the carrying ring frame 320 to rotate along the pad printing direction, drives the carrying sliding tables 340 to move on the carrying ring frame 320, and further drives the dry film carrier 800 to move; the carrying sliding tables 340 are positioned by the positioning assembly 330, and thus the positioning of the dry film carrier 800 is realized, which facilitates feeding, discharging, and pad printing.

[0056] The carrying driving device 310 can be a driving motor, and the positioning assembly 330 positions the carrying sliding tables 340, and assists the carrying sliding tables 340 to stop at the predetermined positions of the dry film feeding, discharging, and dry film printing as needed; the carrying unit 300 realizes continuous feeding of a plurality of dry film carriers 800, which facilitates continuous pad printing of a plurality of dry films and improves the pad printing efficiency.

[0057] In the embodiment, the carrier ring frame 320 comprises a ring track 321, a transmission wheel 322 and a transmission belt 323; the transmission belt 323 is arranged around the two transmission wheels 322, and a plurality of transmission blocks 324 for connecting the carrier sliding table 340 are arranged on the transmission belt 323; the carrier sliding table 340 is slidingly arranged on the ring track 321, and the carrier sliding table 340 is assembled and connected with the transmission blocks 324. The output end of the carrier driving device 310 is connected with and drives the transmission wheel 322 to rotate, the transmission wheel 322 drives the transmission belt 323 to rotate, the transmission belt 323 drives the carrier sliding table 340 to move on the ring track 321 through the transmission blocks 324, and the dry film carrier 800 is realized to circulate and turnover in a loop, so that the dry film to be transferred is continuously conveyed to the transfer direction, and the transfer efficiency is improved.

[0058] In the embodiment, the carrier sliding table 340 comprises a sliding table carrier plate 342 for mounting the dry film carrier 800 and a sliding table side plate 341 mounted on both sides of the sliding table carrier plate 342; the lower end of the sliding table side plate 341 on one side is provided with a sliding table clamping groove 343 for assembled connection with the transmission block 324, and the outer end surface of the sliding table side plate 341 on the other side is provided with a positioning groove plate 345 for cooperation with the positioning assembly 330; the inner side of the sliding table side plate 341 is provided with a sliding roller 344 for assembly with the ring track 321.

[0059] Specifically, the dry film carrier 800 is mounted on the sliding table carrier plate 342, and the sliding table side plate 341 is arranged on both sides of the sliding table carrier plate 342; the inner side end surface of the sliding table side plate 341 is mounted with the sliding roller 344 for rolling abutment with the ring track 321 to assist the sliding table carrier plate 342 to slide; the lower end of the sliding table side plate 341 on one side is provided with the sliding table clamping groove 343 for assembly with the sliding block 324; and the outer end surface of the sliding table side plate 341 on the other side is provided with the positioning groove plate 345 for facilitating the positioning assembly 330 to position the carrier sliding table 340.

[0060] In the embodiment, the positioning assembly 330 comprises a positioning wedge block 335 and a positioning driving device 331 for driving the positioning wedge block 335 to be embedded in the positioning groove plate 345. Specifically, the positioning driving device 331 can adopt a pneumatic cylinder for driving the positioning wedge block 335 to be embedded in the positioning groove plate 345.

[0061] In the embodiment, the plurality of positioning wedges 335 are mounted on the positioning rods 333, and the positioning rods 333 are rotationally mounted on the positioning shaft seats 332; the driving end of the positioning driving device 331 is drivingly connected with the driving link 334, one end of the driving link 334 is rotationally connected with the positioning driving device 331, and the other end of the driving link 334 is connected with the positioning rod 333; the positioning driving device 331 pushes the driving link 334 to drive the positioning rod 333 to rotate with the positioning shaft seat 332 as a reference, and then the positioning rod 333 drives the positioning wedge 335 to rotate and embed the positioning wedge 335 into the positioning groove plate 345, so as to complete the positioning of the whole carrying slide table 340, and then realize the positioning function of the predetermined position of the dry film carrier 800.

[0062] In the embodiment, the dry film carrier 800 comprises a carrier base 810 and a dry film suction head 830 mounted on the carrier base 810 and used for sucking the dry film; the carrier base 810 is provided with an air path port 820 connected with the dry film suction head 830.

[0063] The carrier base 810 is provided with an internal air path 811, the dry film suction head 830 is provided with a plurality of film suction holes 831, the air path port 820 is mounted on one side port of the internal air path 811, and the dry film suction head 830 is mounted on the other side port of the internal air path 811; the air path port 820, the internal air path 811 and the film suction hole 831 are communicated; a plurality of air path ports 820 are connected with a gas and electricity slip ring 840, and the gas and electricity slip ring 840 is connected with an external air extraction device.

[0064] Specifically, the external air extraction device is used for air extraction, air is branched through the gas and electricity slip ring 840, and a plurality of air path ports 820 are connected; when the dry film is placed on the dry film suction head 830, the film suction hole 831 is blocked, negative pressure is formed, and the dry film is adsorbed on the dry film suction head 830, so as to realize the loading of the dry film.

[0065] In the embodiment, the dry film collecting unit 500 is provided with a disc moving device 600 and a collecting disc device 700 at a discharging position; the dry film collecting unit 500 comprises a collecting mechanism 510 and a collecting tool 520; the collecting disc device 700 comprises a disc collecting mechanism 720, a disc collecting tool 730 and a collecting disc warehouse 740.

[0066] The receiving mechanism 510 drives the receiving tool 520 to the dry sheet carrier 800 on the carrying unit 300; the receiving tool 520 picks up the printed dry sheet from the dry sheet carrier 800; the receiving mechanism 510 drives the receiving tool 520 to move, thereby moving the printed dry sheet to the plate moving device 600, and placing the printed dry sheet in the receiving tray 710 of the plate moving device 600; the plate moving device 600 moves the receiving tray 710 carrying the printed dry sheet to the receiving tray device 700; the receiving tray mechanism 720 drives the receiving tray tool 730 to carry the receiving tray 710 carrying the printed dry sheet from the plate moving device 600 to the receiving tray warehouse 740, and drives the receiving tray tool 730 to carry the empty receiving tray 710 from the receiving tray warehouse 740 to the plate moving device 600.

[0067] Specifically, the receiving mechanism 510 comprises a receiving X-axis driving device 512, a receiving Y-axis driving device 511 and a receiving lifting driving device 513, and the receiving mechanism 510 can realize XYZ three-axis driving structure; the receiving tool 520 can adopt a suction cup or a clamping jaw and the like, which can pick up and place multiple dry sheets. The receiving tray mechanism 720 comprises a receiving tray displacement driving device 723, a receiving tray lifting driving device 722 and a rotating disc driving device 721; the receiving tray tool 730 can adopt a clamping jaw or a suction cup and the like, which can realize the tool for grabbing and placing the receiving tray 710.

[0068] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or adopt similar ways to replace them, without deviating from the scope defined by the spirit of the present application.

Claims

1. A dry contact lens printing device, characterized in that, It includes a dry sheet feeding unit (200), a dry sheet carrier (800) for carrying dry sheets, a transport unit (300) for operating the dry sheet carrier (800), a dry sheet printing unit (400) for printing patterns on the dry sheets, and a dry sheet receiving unit (500) for receiving the printed dry sheets. During operation, the dry sheet feeding unit (200) moves the dry sheet to be printed to the transport unit (300); the dry sheet feeding unit (200) transports the dry sheet to be printed and places it on the dry sheet carrier (800) in the transport unit (300); the transport unit (300) moves the dry sheet carrier (800) containing the dry sheet to be printed to the dry sheet printing unit (400), and the dry sheet printing unit (400) prints patterns on the dry sheet to be printed; the transport unit (300) moves the dry sheet carrier (800) containing the printed dry sheet to the dry sheet receiving unit (500); the dry sheet receiving unit (500) transports the printed dry sheet from the dry sheet carrier (800) to the receiving tray (710).

2. The contact lens dry printing device according to claim 1, characterized in that, The dry sheet loading unit (200) includes a tray transport mechanism (210) for transporting the dry sheet tray (110), a vision mechanism (220) for visual positioning of the dry sheet, a platform mechanism (230) for transferring the dry sheet, and a dry sheet transport robot arm (240) for transporting the dry sheet onto the dry sheet carrier (800). During loading, the tray transport mechanism (210) transports the dry sheet tray (110) to the platform mechanism (230), the platform mechanism (230) moves the dry sheet tray (110) to the vision mechanism (220), the vision mechanism (220) performs visual positioning of the dry sheet to be transferred in the dry sheet tray (110); the dry sheet transport robot arm (240) transports the dry sheet to be transferred from the dry sheet tray (110) to the dry sheet carrier (800), thus completing the loading of the dry sheet.

3. The contact lens dry printing device according to claim 2, characterized in that, The pallet transport mechanism (210) includes a pallet moving drive device (211), a pallet lifting drive device (212) driven by the execution end of the pallet moving drive device (211), and a pallet tooling (213) driven by the execution end of the pallet lifting drive device (212). The tray lifting drive device (212) drives the tray fixture (213) to move up and down, so that the tray fixture (213) can pick up and place the dry film tray (110); the tray moving drive device (211) drives the tray lifting drive device (212) and the tray fixture (213) to move, thereby transporting the dry film to be printed.

4. The contact lens dry printing device according to claim 2, characterized in that, The platform mechanism (230) includes a turntable drive device (231) and a tray platform (232) driven and connected to the execution end of the turntable drive device (231). The tray platform (232) is provided with a plurality of tray positioning slots (233). The tray transport mechanism (210) transports the dry film tray (110) to the tray positioning slot (233). The turntable drive device (231) drives the tray table (232) to rotate, which in turn drives the dry film tray (110) placed in the tray positioning slot (233) to enter the vision mechanism (220). After the dry film to be transferred on the tray table (232) is transported, the turntable drive device (231) drives the tray table (232) to rotate, which moves the empty dry film tray (110) to the tray transport mechanism (210). The tray transport mechanism (210) removes the empty dry film tray (110).

5. The contact lens dry printing device according to claim 2, characterized in that, The tray transport mechanism (210) is also provided with a tray hopper (100); the tray transport mechanism (210) transports the dry sheet tray (110) containing the dry sheet to be transferred from the tray hopper (100) to the platform mechanism (230); the tray transport mechanism (210) transports the empty dry sheet tray (110) from the platform mechanism (230) to the tray hopper (100); The vision mechanism (220) includes an identification lens (223) for identifying dry film and an identification column (221) for mounting the identification lens (223); the identification column (221) is mounted on one end of the platform mechanism (230) near the dry film handling robot arm (240); the identification lens (223) is slidably mounted on the identification column (221) using a sliding track module (222).

6. The contact lens dry printing device according to claim 1, characterized in that, The dry film printing unit (400) includes a pad printing head assembly (410), a pad printing lifting mechanism (430) for driving the pad printing head assembly (410) to rise and fall, a pattern plate mechanism (440) for providing pad printing patterns to the pad printing head assembly (410), and a cleaning mechanism (420) for cleaning the pad printing head assembly (410); the pad printing lifting mechanism (430) includes a lifting connecting plate (432) for mounting the pad printing head assembly (410), and a pad printing lifting drive device (431) for driving the lifting connecting plate (432) to rise and fall. When printing patterns on the dry film to be printed, the pad printing lifting mechanism (430) drives the pad printing head assembly (410) to the cleaning mechanism (420), and the cleaning mechanism (420) cleans the execution end of the pad printing head assembly (410); the pad printing lifting mechanism (430) drives the pad printing head assembly (410) to the drawing plate mechanism (440), so that the execution end of the pad printing head assembly (410) contacts the drawing plate mechanism (440) to obtain the pattern to be printed; the pad printing lifting mechanism (430) drives the pad printing head assembly (410) to the dry film carrier (800) so that the ink on the execution end of the pad printing head assembly (410) is printed on the dry film on the dry film carrier (800).

7. The contact lens dry printing device according to claim 6, characterized in that, The cleaning mechanism (420) includes a cleaning flip drive (421), a reel assembly (423), and a wiping drive (422) that drives the reel assembly (423) to wipe the pad printing head assembly (410); the reel assembly (423) and the wiping drive (422) are both mounted on a cleaning connecting plate (424), which is connected to the execution end of the cleaning flip drive (421); During the cleaning action, the cleaning flipping drive device (421) drives the cleaning connecting plate (424) to move the tray assembly (423) below the pad printing head assembly (410), and the pad printing lifting mechanism (430) drives the pad printing head assembly (410) to contact the tray assembly (423) to achieve cleaning and wiping. The reel assembly (423) includes a cleaning reel (4231) and a cleaning auxiliary roller (4233) for tensioning the cleaning belt; the cleaning reel (4231) is fixed on the cleaning connecting plate (424) and the cleaning reel (4231) is connected to the output end of the wiping drive device (422); multiple cleaning auxiliary rollers (4233) are mounted on the roller frame (4232) to tension and support the cleaning belt, and the transfer printing head assembly (410) contacts the tensioned cleaning belt to achieve ink removal; the roller frame (4232) is connected to the cleaning connecting plate (424).

8. The contact lens dry printing device according to claim 6, characterized in that, The drawing board mechanism (440) includes a printed circuit board (443), a board drive device (441) for driving the printed circuit board (443) to move, an ink cartridge (444) for coating ink, and a top box frame (445) for supporting the ink cartridge (444) to slide against the printed circuit board (443). The printed circuit board (443) and the ink cartridge (444) are always in sliding contact. When the board driving device (441) drives the printed circuit board (443) to move to the transfer head assembly (410), the printed circuit board (443) and the ink cartridge (444) slide relative to each other, so that the ink is coated on the printed circuit board (443), and the transfer head assembly (410) is waiting to contact the printed circuit board (443) and pick up the ink.

9. The contact lens dry printing device according to claim 1, characterized in that, The transport unit (300) includes a transport ring frame (320), a plurality of transport slides (340) for loading dry sheet carriers (800), a positioning assembly (330) for positioning the transport slides (340), and a transport drive device (310) for driving the transport ring frame (320) to feed materials; the transport slides (340) are mounted on the transport ring frame (320); During operation, the transport drive device (310) drives the transport ring frame (320) to rotate along the printing direction, causing the transport slide (340) to move on the transport ring frame (320), thereby driving the dry sheet carrier (800) to move; the positioning component (330) positions the transport slide (340), thereby achieving the positioning of the dry sheet carrier (800); The transport ring frame (320) includes a ring track (321), a drive wheel (322), and a drive belt (323); the drive belt (323) is wound around two drive wheels (322), and the drive belt (323) is provided with a plurality of drive protrusions (324) for connecting the transport slide (340); the transport slide (340) is slidably mounted on the ring track (321), and the transport slide (340) is assembled and connected with the drive protrusions (324); The output end of the vehicle drive device (310) is connected to and drives the transmission wheel (322) to rotate. The transmission wheel (322) drives the transmission belt (323) to rotate. The transmission belt (323) drives the vehicle slide (340) to move on the circular track (321) through the transmission protrusion (324). The transport slide (340) includes a slide plate (342) for mounting the dry film carrier (800) and slide side plates (341) mounted on both sides of the slide plate (342); the lower end of one slide side plate (341) is provided with a slide slot (343) for assembly and connection with the transmission protrusion (324), and the outer end face of the other slide side plate (341) is provided with a positioning slot plate (345) for cooperating with the positioning assembly (330); the inner side of the slide side plate (341) is provided with a sliding roller (344) for assembly with the annular track (321). The positioning component (330) includes a positioning wedge (335) and a positioning drive device (331) for driving the positioning wedge (335) to embed into the positioning slot plate (345). Multiple positioning wedges (335) are mounted on positioning rods (333), which are rotatably mounted on positioning shaft seats (332); the execution end of the positioning drive device (331) is driven by a drive link (334), one end of the drive link (334) is rotatably connected to the positioning drive device (331), and the other end is connected to the positioning rod (333). The positioning drive device (331) pushes the drive link (334) to drive the positioning rod (333) to rotate around the positioning shaft seat (332) as a reference. Then the positioning rod (333) drives the positioning wedge (335) to rotate and embeds the positioning wedge (335) into the positioning groove plate (345).

10. The contact lens dry printing device according to claim 1, characterized in that, The dry sheet receiving unit (500) is equipped with a transfer device (600) and a receiving tray device (700) at the unloading point; the dry sheet receiving unit (500) includes a receiving mechanism (510) and a receiving fixture (520); the receiving tray device (700) includes a receiving mechanism (720), a receiving fixture (730), and a receiving tray hopper (740); During material collection, the collecting mechanism (510) drives the collecting fixture (520) to the dry sheet carrier (800) on the transport unit (300); the collecting fixture (520) picks up the printed dry sheet from the dry sheet carrier (800); the collecting mechanism (510) drives the collecting fixture (520) to move, thereby moving the printed dry sheet to the transfer device (600), and placing the printed dry sheet in the collecting tray (710) at the transfer device (600); The transfer device (600) moves the receiving tray (710) carrying the printed dry film to the receiving mechanism (720); the receiving mechanism (720) drives the receiving fixture (730) to transport the receiving tray (710) from the transfer device (600) to the receiving tray hopper (740), and then the receiving mechanism (720) drives the receiving fixture (730) to transport the empty receiving tray (710) from the receiving tray hopper (740) to the transfer device (600).

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