A full-automatic pad printing equipment for multi-color contact lenses

Abstract

The utility model relates to contact lens manufacturing field, concretely is a kind of full-automatic pad printing equipment of multicolor contact lens, including rack;Mould feeding assembly, mould split module component, lower mould pretreatment component, pad printing assembly, solidification component, liquid injection component, mould closing assembly, mould discharging assembly.The utility model integrates the process of mould feeding, split, surface treatment, pad printing, liquid injection and mould closing, realizes the full-automatic production before contact lens forming, only needs an operator to supplement lower mould material at feeding assembly, greatly improves production efficiency and reduces the labor intensity of personnel.

Description

Technical Field

[0001] This utility model relates to the field of contact lens manufacturing technology, and in particular to a fully automatic pad printing device for multi-color contact lenses. Background Technology

[0002] Specialized resin molds are required for the production of contact lenses. Silicone hydrogel is injected into the bottom mold of the resin mold, and then the top mold is placed on top for pressing and curing, thus completing the production of the contact lens. With changing times and technological advancements, contact lenses are no longer just medical products with vision correction functions. Colored contact lenses with colored pigment layers or pattern layers can also be used to magnify the iris or sclera, or to change the pattern or color of the eyes, providing a decorative effect that makes the eyes more striking.

[0003] In current multi-colored contact lens production, after the mold is formed, the multi-lobed mold is typically cut into individual molds. These individual molds are then placed in a material tray and transferred between multiple processes, including pad printing, curing, liquid injection, and mold assembly. The equipment used for each of these processes is separate, requiring manual labor or transport equipment for subsequent steps. This process is inefficient and cannot meet the demands of mass production. Therefore, improving the efficiency of multi-colored contact lens production is a problem that those skilled in the art need to consider. Utility Model Content

[0004] The purpose of this invention is to provide a fully automated pad printing device for multi-color contact lenses, so as to solve the problems of low production efficiency of multi-color contact lenses in the prior art.

[0005] The technical solution of this utility model is: a fully automatic pad printing device for multi-color contact lenses, including a frame; The mold feeding assembly includes a feeding bin and a first transfer assembly. The mold is placed in the feeding bin via a material tray, and the first transfer assembly transfers the mold in the feeding bin to a first carrier plate connected to a first driving device. The mold parting assembly includes an upper mold parting device and an upper mold transfer assembly. The upper mold parting device separates and removes the upper mold of the mold from the first carrier plate and transfers it to the upper mold transfer assembly. The lower mold pretreatment assembly includes a second transfer assembly and a processing device. The second transfer assembly transfers the lower mold on the first carrier plate to the processing device for surface treatment, and then transfers it back to the first carrier plate. A pad printing assembly includes a pad printing transfer device, a pad printing stage, a pad printing device, a doctor blade device, and a second carrier plate connected to a second driving device. The pad printing transfer device transfers a lower mold onto the pad printing stage; the pad printing device drives a printing head to reciprocate between the doctor blade device and the lower mold to transfer pigment from the doctor blade device to the lower mold; the pad printing transfer device then transfers the lower mold onto the second carrier plate. The curing assembly includes a curing device and a third transfer assembly, wherein the third transfer assembly transfers the lower mold on the second carrier plate to the curing device for curing, and then transfers it to the third carrier plate connected to the third driving device; The liquid injection assembly includes a liquid injection needle, which moves above the third carrier plate to complete the liquid injection of the lower mold; The mold closing assembly includes a fourth transfer assembly and a pressing device. The pressing device is disposed above the third carrier plate. The fourth transfer assembly transfers the upper mold at the upper mold transfer assembly to the pressing device, thereby completing the mold closing of the upper mold and the lower mold. The mold unloading assembly includes a fifth transfer assembly and an unloading bin. The fifth transfer assembly transfers the module on the third carrier plate to the unloading bin, thus completing the mold unloading.

[0006] Preferably, the feeding hopper includes a first linear module and a first lifting device connected to the first linear module, two symmetrically arranged fourth carrier plates disposed above the first linear module, the two fourth carrier plates being connected by a fourth driving device and simultaneously connected to a second lifting device, and two symmetrical first support plates disposed above the first linear module, each of the two first support plates having a first support block rotatably connected to an adjacent side, the upper ends of the first support blocks extending towards each other and protruding from the first support plates; the upper surface of the first support block is horizontal and can rotate upward relative to the first support plate, and has a driving tendency to rotate in the opposite direction; The fourth driving device can drive the two fourth carrier plates to move simultaneously toward or relative to each other, and the second lifting device can drive the two fourth carrier plates to move simultaneously in the vertical direction; the first linear module drives the first lifting device to move at the fourth carrier plate and the first transfer component, transferring the material tray carrying the mold on the fourth carrier plate to directly below the first transfer component, and transferring the empty material tray to directly below the first pallet.

[0007] Preferably, the upper mold separating device includes a first suction head assembly and a sixth transfer assembly connected to the first suction head assembly; the first carrier plate moves to directly below the first suction head assembly under the drive of the first driving device, the first suction head assembly picks up the upper mold, and is transferred to the upper mold transfer assembly under the drive of the sixth transfer assembly; and is moved by the upper mold transfer assembly to directly below the fourth transfer assembly.

[0008] Preferably, the processing device includes an upper electrode plate and a fifth driving device capable of driving the upper electrode plate to move in the vertical direction, an electrode fixture plate, and a lower electrode plate disposed below the electrode fixture plate; The first driving device drives the first carrier plate carrying the lower mold to move to the second transfer component; the second transfer component transfers the lower mold to the electrode fixture plate; the upper electrode plate moves downward under the drive of the fifth driving device, and together with the lower electrode plate, completes the electrode surface treatment of the lower mold; then, under the drive of the second transfer component, the lower mold is transferred back to the first carrier plate.

[0009] Preferably, a rotary drive device is connected below the pad printing stage; Multiple scraper devices are provided; The pad printing assembly also includes a vision device and a sixth driving device connected to the vision device; The vision device is used to position the lower mold on the pad printing platform to obtain the position of the pad printing head.

[0010] Preferably, the pad printing assembly further includes a glue head cleaning device, wherein the pad printing device drives the glue head to the glue head cleaning device to clean the ink on the glue head.

[0011] Preferably, the pressing device further includes a seventh transfer assembly, on which a transfer plate is provided; The pressing device includes a pressing head assembly and a seventh driving device that drives the pressing head assembly to move in the vertical direction; After the fourth transfer component picks up the upper mold from the upper mold transfer component, it transfers it to the top of the transfer plate, and then moves to the pressure head component under the drive of the seventh transfer component; the pressure head component picks up the upper mold and moves downward under the drive of the seventh drive device to close the mold with the lower mold on the third carrier plate.

[0012] Preferably, the pressure head assembly includes multiple pressure heads, a suction nozzle is provided at the center of the pressure head, and multiple pressure rods are provided around the circumference of the suction nozzle; the lower end of the suction nozzle protrudes downward beyond the lower end of the pressure rods, and when the suction nozzle picks up the upper mold, the lower end face of the pressure rod abuts against the upper end face of the upper mold.

[0013] Preferably, the feeding hopper includes a second linear module and a third lifting device connected to the second linear module, two symmetrically arranged fifth carrier plates disposed above the second linear module, the two fifth carrier plates being connected by an eighth driving device and simultaneously connected to a fourth lifting device, and two symmetrical second support plates disposed above the second linear module, each of the two second support plates having a second support block rotatably connected to its adjacent side, the upper ends of the second support blocks extending towards each other and protruding from the second support plates; the upper surface of the second support block is horizontal and can rotate upward relative to the second support plate, and has a driving tendency to rotate in the opposite direction; The eighth driving device can drive the two fifth carrier plates to move simultaneously in opposite or opposite directions, and the fourth lifting device can drive the two fifth carrier plates to move simultaneously in the vertical direction; the second linear module drives the third lifting device to move at the fifth carrier plate and the fifth transfer assembly, transferring the empty tray at the fifth carrier plate to directly below the fifth transfer assembly, and transferring the tray carrying the mold to directly below the second pallet.

[0014] Compared with the prior art, the advantages of this utility model are: (1) This utility model integrates the processes of mold feeding, mold splitting, surface treatment, transfer printing, liquid injection and mold closing, realizing fully automated production before contact lens molding. Only one operator is needed to replenish the upper and lower mold materials at the feeding component, which greatly improves production efficiency and reduces the labor intensity of personnel. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure of the fully automatic pad printing equipment for multicolor contact lenses described in this utility model; Figure 2 This is a top view of the fully automatic pad printing equipment for multicolor contact lenses described in this utility model. Figure 3 This is a schematic diagram of the structure of the feeding hopper described in this utility model; Figure 4 This is a schematic diagram of the upper mold parting device of this utility model; Figure 5 This is a schematic diagram of the structure of the lower mold pretreatment component described in this utility model; Figure 6 This is a schematic diagram of the structure of the pad printing assembly described in this utility model; Figure 7 This is a schematic diagram of the pressing device described in this utility model; Figure 8 for Figure 7 Enlarged structural diagram at point A; Figure 9 This is a schematic diagram of the structure of the fourth transfer component of this utility model; Figure 10 This is a schematic diagram of the material feeding hopper described in this utility model.

[0016] Among them: rack 1; Mold feeding assembly 2, feeding bin 21, first transfer assembly 22, first drive device 23, first carrier plate 231, first linear module 24, first lifting device 25, fourth carrier plate 26, fourth drive device 261, second lifting device 262, first support plate 27, first support block 271. Mold parting assembly 3, upper mold parting device 31, first suction head assembly 311, sixth transfer assembly 312, upper mold transfer assembly 32; The lower mold pretreatment component 4, the second transfer component 41, the processing device 42, the upper electrode plate 421, the fifth driving device 422, the electrode fixture plate 423, and the lower electrode plate 424. Pad printing assembly 5, pad printing transfer device 51, pad printing stage 52, rotating device 521, pad printing device 53, pad printing head 531, doctor blade device 54, ink tank 541, vision device 55, sixth drive device 56, pad cleaning device 57. Curing component 6, curing device 61, third transfer component 62; Injection assembly 7, third drive device 71, third carrier plate 711, injection needle 72; Mold closing assembly 8, fourth transfer assembly 81, pressing device 82, seventh transfer assembly 821, transfer plate 822, pressing head assembly 83, pressing head 831, suction nozzle 832, pressing rod 833, seventh drive device 84; Mold unloading assembly 9, fifth transfer assembly 91, unloading bin 92, second linear module 93, third lifting device 94, fifth carrier plate 95, eighth drive device 951, fourth lifting device 952, second pallet 96, second support block 961. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments: like Figures 1-10As shown, this utility model is applied to the production of multi-colored contact lenses. Manually, a tray containing an eight-petal mold for contact lenses is loaded into a loading hopper. A first transfer assembly transfers the eight-petal mold from the tray to a first carrier plate. A first driving device drives the first carrier plate to separate the upper and lower molds at the upper mold separation device. The upper mold is placed on the upper mold transfer assembly for transfer, while the lower mold is transferred by a second transfer assembly to a lower mold processing device for surface treatment. After surface treatment, the lower mold is transferred back to the first carrier plate by the second transfer assembly. The transfer device removes the surface-treated lower mold from the first carrier plate and... The ink is transferred to the pad printing platform, where the lower mold is transferred using the pad printing device. Then, the pad printing transfer device transfers the printed lower mold to the second carrier plate. The third transfer assembly transfers the lower mold from the second carrier plate to the curing device for ink curing, and then transfers it to the third carrier plate. Driven by the third drive device, the lower mold is injected with ink through the injection assembly, and then moves to the pressing device. The fourth transfer assembly transfers the upper mold from the upper mold transfer assembly to the pressing device, where it is pressed against the lower mold. After pressing, the fifth transfer assembly transfers the lower mold to the unloading bin for unloading. Specifically: A fully automatic pad printing device for multicolor contact lenses includes a frame 1, and a mold feeding assembly 2, a mold separating assembly 3, a lower mold pretreatment assembly 4, a pad printing assembly 5, a curing assembly 6, a liquid injection assembly 7, a mold closing assembly 8, and a mold unloading assembly 9 arranged sequentially on the frame 1.

[0018] The mold loading assembly 2 includes a loading bin 21 and a first transfer assembly 22. The mold is placed in the loading bin 21 via a material tray, and the first transfer assembly 22 transfers the mold in the loading bin 21 to the first carrier plate 231 connected to the first drive device 23.

[0019] The feeding hopper 21 includes a first linear module 24 and a first lifting device 25 connected to the first linear module 24, two symmetrically arranged fourth carrier plates 26 above the first linear module 24, the two fourth carrier plates 26 being connected by a fourth driving device 261 and simultaneously connected to a second lifting device 262, and two symmetrical first support plates 27 above the first linear module 24. Each of the two first support plates 27 has a first support block 271 rotatably connected to one of its adjacent sides. The upper ends of the first support blocks 271 extend towards each other and protrude from the first support plates 27. The upper surface of the first support blocks 271 is horizontal and can rotate upward relative to the first support plates 27, and has a driving tendency to rotate in the opposite direction.

[0020] In this embodiment, the multi-layer tray containing the contact lens mold is placed manually on the fourth carrier plate 26, and the two sides of the lower end of the tray overlap the two fourth carrier plates 26 respectively. The first lifting device 25 moves to directly below the tray and lifts the tray upwards; the fourth carrier plates 26 move away from each other under the drive of the fourth driving device 261, and then move upwards to the upper tray under the drive of the second lifting device 262, with the two fourth carrier plates 26 approaching each other and inserting into the two tray supports; then the first lifting device 25 drives the tray downwards, with the upper tray overlapping the fourth carrier plate 26, and the lowest tray placed at the first lifting device 25; the tray is transferred out of the fourth carrier plate 26 by the first linear module 24, and the mold on the tray is removed and transferred to the first carrier plate 231 by the first transfer component 22; the empty tray moves directly below the first support plate 27 under the drive of the first linear module 24; the first lifting device 25 drives the tray upwards to above the first support block 271, the first support block 271 rotates upwards and then resets, and the first lifting device 25 drives the tray downwards to rest on the upper surface of the first support block 271.

[0021] The mold parting assembly 3 includes an upper mold parting device 31 and an upper mold transfer assembly 32. The upper mold parting device 31 separates and removes the upper mold from the first carrier plate 231 and transfers it to the upper mold transfer assembly 32. The upper mold parting device 31 includes a first suction head assembly 311 and a sixth transfer assembly 312 connected to the first suction head assembly 311. The first carrier plate 231 moves under the drive of the first driving device 23 to directly below the first suction head assembly 311. The first suction head assembly 311 picks up the upper mold and transfers it to the upper mold transfer assembly 32 under the drive of the sixth transfer assembly 312. The upper mold transfer assembly 32 then moves it directly below the fourth transfer assembly.

[0022] The lower mold pretreatment assembly 4 includes a second transfer assembly 41 and a processing device 42. The second transfer assembly 41 transfers the lower mold from the first carrier plate 231 to the processing device 42 for surface treatment, and then transfers it back to the first carrier plate 231. The processing device 42 includes an upper electrode plate 421, a fifth driving device 422 that can drive the upper electrode plate 421 to move vertically, an electrode fixture plate 423, and a lower electrode plate 424 disposed below the electrode fixture plate 423. The first driving device 23 drives the first carrier plate 231 carrying the lower mold to the second transfer assembly 41. The second transfer assembly 41 transfers the lower mold to the electrode fixture plate 423. The upper electrode plate 421 moves downward under the drive of the fifth driving device 422, and together with the lower electrode plate 424, completes the electrode surface treatment of the lower mold. Afterward, under the drive of the second transfer assembly 41, the lower mold is transferred back to the first carrier plate 231.

[0023] The pad printing assembly 5 includes a pad printing transfer device 51, a pad printing stage 52, a pad printing device 53, a doctor blade device 54, and a second carrier plate connected to a second drive device. The pad printing transfer device 51 transfers the lower mold onto the pad printing stage 52; the pad printing device 53 drives the ink head 531 to reciprocate between the doctor blade device 54 and the lower mold to transfer the ink from the doctor blade device 54 to the lower mold; the pad printing transfer device 51 transfers the lower mold onto the second carrier plate 63. A rotary drive device is connected below the pad printing stage 52; multiple doctor blade devices 54 are provided; the pad printing assembly 5 also includes a vision device 55 and a sixth drive device 56 connected to the vision device 55; the vision device 55 positions the lower mold on the pad printing stage 52 to obtain the position of the ink head 531 for printing.

[0024] In this embodiment, the pad printing assembly 5 is provided in two sets, each set of pad printing assemblies 5 performs pad printing on three colors, that is, the two sets of pad printing assemblies 5 have a total of six sets of ink scraping devices 54, which can complete the pad printing operation of six colors. The pad printing assembly 5 also includes a glue head cleaning device 57, in which the pad printing device 53 drives the glue head 531 to the glue head cleaning device 57 to clean the ink on the glue head 531.

[0025] During pad printing, the pad printing transfer device 51 transfers the lower mold from the first carrier plate 231 to the pad printing stage 52. The vision device 55 positions the lower mold, the ink trough 541 of the ink scraper 54, and the adhesive head cleaning device 57 respectively. The pad printing device 53 drives the adhesive strip to pick up ink in the first ink trough 541, transfer it to the first lower mold, and then move it to the adhesive head cleaning device 57 to clean the adhesive head 531. After that, the adhesive head 531 picks up ink in the second ink trough 541 and transfers it to the first lower mold, and then moves it to the adhesive head cleaning device 57 to clean the adhesive head 531. This process is repeated until all lower molds have been printed with three colors. After that, the lower mold is transferred to the second pad printing assembly 5 for the printing of the other three colors. After the pad printing is completed, the lower mold on the pad printing stage 52 is lowered and transferred to the second carrier plate 63 under the drive of the pad printing transfer device 51.

[0026] The lower end of the pad printing stage 52 is equipped with a rotating device 521. When the next lower die is being printed in the eight-lobed lower die, the rotating device 521 can drive the die to rotate, so that the corresponding lower die is rotated to the printing station.

[0027] The curing component 6 includes a curing device 61 and a third transfer component 62. The third transfer component 62 transfers the lower mold on the second carrier plate 63 into the curing device 61 for curing, and then transfers it to the third carrier plate 711 connected to the third driving device 71.

[0028] The injection assembly 7 includes an injection needle 72, which moves above the third carrier plate 711 to complete the injection of liquid into the lower mold. In this embodiment, the cured mold moves to the injection assembly 7 under the drive of the third carrier plate 711, and the injection needle 72 moves directly above the lower mold to inject liquid into the lower mold. After the injection is completed, the third carrier plate 711 drives the lower mold to move directly below the mold closing assembly 8.

[0029] The mold closing assembly 8 includes a fourth transfer assembly 81 and a pressing device 82. The pressing device 82 is disposed above the third carrier plate 711. The fourth transfer assembly 81 transfers the upper mold from the upper mold transfer assembly 32 to the pressing device 82, completing the mold closing of the upper and lower molds. The pressing device 82 also includes a seventh transfer assembly 821, on which a transfer plate 822 is disposed. The pressing device 82 includes a pressing head assembly 83 and a seventh driving device 84 that drives the pressing head assembly 83 to move in the vertical direction; after the fourth transfer assembly 81 picks up the upper mold at the upper mold transfer assembly 32, it transfers it to the top of the transfer plate 822, and then moves to the pressing head assembly 83 under the drive of the seventh transfer assembly 821; the pressing head assembly 83 picks up the upper mold and moves downward under the drive of the seventh driving device 84 to close the mold with the lower mold on the third carrier plate 711.

[0030] The pressure head assembly 83 includes multiple pressure heads 831. A suction nozzle 832 is provided at the center of the pressure head 831. Multiple pressure rods 833 are provided around the circumference of the suction nozzle 832. The lower end of the suction nozzle 832 protrudes downward beyond the lower end of the pressure rod 833. When the suction nozzle 832 picks up the upper mold, the lower end face of the pressure rod 833 abuts against the upper end face of the upper mold.

[0031] The mold unloading assembly 9 includes a fifth transfer assembly 91 and an unloading bin 92. The fifth transfer assembly transfers the module on the third carrier plate 711 to the unloading bin 92, completing the mold unloading. The unloading bin 91 includes a second linear module 93 and a third lifting device 94 connected to the second linear module 93. Two symmetrically arranged fifth carrier plates 95 are positioned above the second linear module 93. The two fifth carrier plates 95 are connected via an eighth drive device 951 and simultaneously connected to a fourth lifting device 952. Two symmetrical second support plates 96 are positioned above the second linear module 93. A second support block 961 is rotatably connected to the adjacent side of each of the two second support plates 96. The upper ends of the second support blocks 961 extend towards each other and protrude from the second support plates 96. The upper surface is horizontal and can rotate upward relative to the second support plate 96, with a driving tendency to rotate in the opposite direction; the eighth driving device 951 can drive the two fifth carrier plates 95 to move simultaneously in opposite directions, and the fourth lifting device 952 can drive the two fifth carrier plates 95 to move simultaneously in the vertical direction; the second linear module 93 drives the third lifting device 94 to move at the fifth carrier plate 95 and the fifth transfer assembly 91, transferring the empty material tray at the fifth carrier plate 95 to directly below the fifth transfer assembly 91, and transferring the material tray carrying the mold to directly below the second support plate 96. In this embodiment, the operation flow of the mold unloading assembly 9 is the opposite of the operation flow of the mold loading assembly 2, and the specific execution process will not be described in this embodiment.

[0032] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and therefore, all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

Claims

1. A fully automated pad printing device for multi-color contact lenses, characterized in that, Including racks; The mold feeding assembly includes a feeding bin and a first transfer assembly. The mold is placed in the feeding bin via a material tray, and the first transfer assembly transfers the mold in the feeding bin to a first carrier plate connected to a first driving device. The mold parting assembly includes an upper mold parting device and an upper mold transfer assembly. The upper mold parting device separates and removes the upper mold of the mold from the first carrier plate and transfers it to the upper mold transfer assembly. The lower mold pretreatment assembly includes a second transfer assembly and a processing device. The second transfer assembly transfers the lower mold on the first carrier plate to the processing device for surface treatment, and then transfers it back to the first carrier plate. A pad printing assembly includes a pad printing transfer device, a pad printing stage, a pad printing device, a doctor blade device, and a second carrier plate connected to a second drive device. The pad printing transfer device transfers a lower mold onto the pad printing stage. The pad printing device drives the ink head to reciprocate between the doctor blade device and the lower mold to transfer the ink from the doctor blade device to the lower mold. The pad printing transfer device transfers the lower mold to the second carrier plate; The curing assembly includes a curing device and a third transfer assembly, wherein the third transfer assembly transfers the lower mold on the second carrier plate to the curing device for curing, and then transfers it to the third carrier plate connected to the third driving device; The liquid injection assembly includes a liquid injection needle, which moves to above the third carrier plate to complete the liquid injection of the lower mold; The mold closing assembly includes a fourth transfer assembly and a pressing device. The pressing device is disposed above the third carrier plate. The fourth transfer assembly transfers the upper mold at the upper mold transfer assembly to the pressing device, thereby completing the mold closing of the upper mold and the lower mold. The mold unloading assembly includes a fifth transfer assembly and an unloading bin. The fifth transfer assembly transfers the module on the third carrier plate to the unloading bin to complete the mold unloading.

2. The fully automatic transfer printing equipment for multi-color contact lenses according to claim 1, characterized in that: The feeding hopper includes a first linear module and a first lifting device connected to the first linear module, two symmetrically arranged fourth carrier plates above the first linear module, the two fourth carrier plates being connected by a fourth driving device and simultaneously connected to a second lifting device, and two symmetrical first support plates above the first linear module. Each of the two first support plates has a first support block rotatably connected to its adjacent side. The upper ends of the first support blocks extend towards each other and protrude from the first support plates. The upper surface of the first support block is horizontal and can rotate upward relative to the first support plate, and has a driving tendency to rotate in the opposite direction. The fourth driving device can drive the two fourth carrier plates to move simultaneously toward or relative to each other, and the second lifting device can drive the two fourth carrier plates to move simultaneously in the vertical direction; the first linear module drives the first lifting device to move at the fourth carrier plate and the first transfer component, transferring the material tray carrying the mold on the fourth carrier plate to directly below the first transfer component, and transferring the empty material tray to directly below the first pallet.

3. The fully automatic transfer printing equipment for multi-color contact lenses according to claim 1, characterized in that: The upper mold separating device includes a first suction head assembly and a sixth transfer assembly connected to the first suction head assembly; the first carrier plate moves to directly below the first suction head assembly under the drive of the first driving device, the first suction head assembly picks up the upper mold, and is transferred to the upper mold transfer assembly under the drive of the sixth transfer assembly; and is moved by the upper mold transfer assembly to directly below the fourth transfer assembly.

4. The fully automatic transfer printing equipment for multi-color contact lenses according to claim 1, characterized in that: The processing device includes an upper electrode plate and a fifth driving device capable of driving the upper electrode plate to move in the vertical direction, an electrode fixture plate, and a lower electrode plate disposed below the electrode fixture plate. The first driving device drives the first carrier plate carrying the lower mold to move to the second transfer component; the second transfer component transfers the lower mold to the electrode fixture plate; the upper electrode plate moves downward under the drive of the fifth driving device, and together with the lower electrode plate, completes the electrode surface treatment of the lower mold; then, under the drive of the second transfer component, the lower mold is transferred back to the first carrier plate.

5. The fully automatic transfer printing equipment for multi-color contact lenses according to claim 1, characterized in that: A rotary drive device is connected below the pad printing stage; The ink scraping device is provided in multiple ways; The pad printing assembly also includes a vision device and a sixth driving device connected to the vision device; The vision device is used to position the lower mold on the pad printing platform to obtain the position of the pad printing head.

6. The fully automatic transfer printing equipment for multi-color contact lenses according to claim 5, characterized in that: The pad printing assembly also includes a glue head cleaning device, wherein the pad printing device drives the glue head to the glue head cleaning device to clean the ink from the glue head.

7. The fully automatic transfer printing equipment for multi-color contact lenses according to claim 1, characterized in that: The pressing device also includes a seventh transfer assembly, on which a transfer plate is provided; The pressing device includes a pressing head assembly and a seventh driving device that drives the pressing head assembly to move in the vertical direction; After the fourth transfer component picks up the upper mold from the upper mold transfer component, it transfers it to the top of the transfer plate, and then moves to the pressure head component under the drive of the seventh transfer component; the pressure head component picks up the upper mold and moves downward under the drive of the seventh drive device to close the mold with the lower mold on the third carrier plate.

8. The fully automatic transfer printing equipment for multi-color contact lenses according to claim 7, characterized in that: The pressure head assembly includes multiple pressure heads, with a suction nozzle at the center of each pressure head and multiple pressure rods around the circumference of the suction nozzle. The lower end of the suction nozzle protrudes downward beyond the lower end of the pressure rods. When the suction nozzle picks up the upper mold, the lower end face of the pressure rods abuts against the upper end face of the upper mold.

9. The fully automatic transfer printing equipment for multi-color contact lenses according to claim 6, characterized in that: The feeding hopper includes a second linear module and a third lifting device connected to the second linear module. Two symmetrically arranged fifth carrier plates are positioned above the second linear module. The two fifth carrier plates are connected via an eighth driving device and simultaneously connected to a fourth lifting device. Two symmetrical second support plates are also positioned above the second linear module. A second support block is rotatably connected to the adjacent side of each of the two second support plates. The upper ends of the second support blocks extend towards each other and protrude from the second support plates. The upper surface of the second support block is horizontal and can rotate upwards relative to the second support plate, with a driving tendency to rotate in the opposite direction. The eighth driving device can drive the two fifth carrier plates to move simultaneously in opposite or opposite directions, and the fourth lifting device can drive the two fifth carrier plates to move simultaneously in the vertical direction; the second linear module drives the third lifting device to move at the fifth carrier plate and the fifth transfer assembly, transferring the empty tray at the fifth carrier plate to directly below the fifth transfer assembly, and transferring the tray carrying the mold to directly below the second pallet.

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