Liquid injection and mold closing equipment for contact lens astigmatism sheet

Abstract

The utility model relates to the technical field of automatic production of contact lenses, in particular to liquid injection and mold closing equipment for light diffusion sheets of contact lenses, which comprises a temporary storage dust removal mechanism for temporarily storing an upper mold, a rotary pickup mechanism for carrying and rotating the upper mold, and a mold closing module for driving the rotary pickup mechanism to move, during rotary mold closing, an upper mold is carried to the temporary storage dust removal mechanism, the temporary storage dust removal mechanism carries out dust removal on the upper mold and then temporarily stores and places the upper mold, the mold closing module drives the rotary picking mechanism to reach the temporary storage dust removal mechanism to obtain the upper mold, the rotary picking mechanism rotates the upper mold to a specified angle, and the mold closing module drives the rotary picking mechanism to place the upper mold on the lower mold. Mold closing is completed; according to the utility model, the overall structure is compact, the functions of temporary storage, dust removal, rotary alignment and placement and die assembly are integrated, and the rapid rotary alignment of the contact lens astigmatism sheet can be completed without redundant turnover and complex actions, so that the processing automation of the astigmatism sheet is improved, and the production and processing efficiency of the contact lens is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to contact lens automation production technical field, specifically is a kind of contact lens astigmatism piece's injection liquid combined die equipment. BACKGROUND

[0002] Astigmatism is a kind of abnormal manifestation of dioptric, when parallel light enters eye, due to the dioptric power of eye on different meridian is not equal, cannot gather in a point, to cause not to form clear object image;

[0003] Due to the existence of complex surface of astigmatism contact lens, one of the most important processes in the preparation process of contact lens astigmatism piece is the positioning of the combined die angle of mold, because only the stable astigmatism axis can play a role in correcting astigmatism. At present, the contact lens astigmatism combined die equipment of domestic full-mold pressing process is still in the blank stage. In order to adapt to the automation trend of production and processing, it is urgent to need related equipment and technical support. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of injection liquid combined die equipment of contact lens astigmatism piece, which can be automatically circulated, injection liquid, alignment adjustment and press tightly combined die.

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

[0006] A kind of injection liquid combined die equipment of contact lens astigmatism piece, including the carrier turnover unit of turnover lower die carrier, be provided with the injection liquid unit of lower die injection liquid along the turnover path of the carrier turnover unit, for adjusting the adjustment combined die unit and combined die pressing unit of the alignment mold cooperation of upper die;

[0007] The lower die carrier with the lower die to be injected liquid is driven to the injection liquid unit by the turnover unit, the injection liquid unit injects liquid into the empty lower die of lower die carrier, the lower die carrier carrying the lower die after injection liquid is driven to the adjustment combined die unit by the turnover unit;The adjustment combined die unit picks up and adjusts the upper die, and places the upper die in the lower die after injection liquid;The matched upper die and lower die are driven to the combined die pressing unit by the turnover unit, and the combined die pressing unit combines the upper die and the lower die, to complete the combined die.

[0008] Further, the inlet end of the turnover unit is provided with a lower die feeding unit, and the inlet end and the outlet end of the turnover unit are provided with a pallet unit for carrying the lower die carrier;

[0009] The pallet unit is used to carry the lower die carrier with the lower die to be injected liquid from the outlet end of the lower die feeding unit to the turnover unit, and carry the lower die carrier with the mold after combined die pressing from the turnover unit;

[0010] Further, the tray carrying unit comprises a tray tool, a tray lifting drive for driving the tray tool to lift, and a tray linear drive for driving the tray tool to move;

[0011] The tray linear drive drives the tray lifting drive to move between the lower mold loading unit, the turnover unit, and the lower mold unloading unit; the tray lifting drive drives the tray tool to lift to pick up and place the lower mold carrier;

[0012] The lower mold loading unit comprises a lower mold conveying device for moving the lower mold carrier loaded with the lower mold to the turnover unit, and a dust removal device for removing dust from the moving lower mold carrier.

[0013] Further, the liquid injection unit comprises a liquid storage bin for storing liquid material, and a liquid injection device for injecting the liquid material into the lower mold.

[0014] Further, the loading part of the mold adjusting and closing unit is further provided with an upper mold loading unit and a temporary storage mechanism; the upper mold loading unit comprises an upper mold feeding device and an upper mold carrying mechanism;

[0015] The upper mold feeding device transports the tray loaded with the upper mold to the upper mold carrying mechanism; the upper mold carrying mechanism carries the upper mold to be closed to the temporary storage mechanism;

[0016] Further, the temporary storage mechanism comprises a mold storage rack for placing the upper mold, the mold storage rack is connected to a dust removal cavity for collecting and dispersing clean gas, the dust removal cavity is connected to an air amplifier, and the air amplifier is connected to an external clean gas source.

[0017] When the upper mold is located at the mold storage rack and is not placed, the air amplifier connects to the external clean gas source, the dust removal cavity collects and disperses clean gas to guide the gas to blow the upper mold above the mold storage rack, and after the dust removal is completed, the upper mold is placed on the mold storage rack.

[0018] Further, the mold adjusting and closing unit comprises a pickup adjusting mechanism, a mold closing drive mechanism for driving the pickup adjusting mechanism to move, an upper mold recognition mechanism for acquiring a mark point of the upper mold, and a lower mold recognition mechanism for acquiring a mark point of the lower mold;

[0019] The upper mold recognition mechanism and the lower mold recognition mechanism respectively acquire the mark point of the upper mold and the mark point of the lower mold; the pickup adjusting mechanism picks up and adjusts the upper mold to match the mark point of the upper mold with the mark point of the lower mold; the mold closing drive mechanism drives the pickup adjusting mechanism to move the upper mold to the lower mold; the mold closing drive mechanism drives the pickup adjusting mechanism to place the upper mold in the lower mold in a correct position, and completes the mold closing.

[0020] Further, the mold closing drive mechanism comprises a mold closing translation drive and a mold closing lifting drive;

[0021] The mold closing lifting drive is installed at the execution end of the mold closing translation drive; and the execution end of the mold closing lifting drive is provided with a mold closing frame plate for installing a pickup adjusting mechanism.

[0022] Further, the pickup adjusting mechanism comprises a pickup executor, an adjusting drive, and a drive mounting frame.

[0023] The adjusting drive is installed in the drive mounting frame, and drives the pickup executor to rotate forward or reversely until the mark point of the upper mold matches the mark point of the lower mold; and the pickup executor is used for picking up and placing the upper mold to be closed.

[0024] Further, a plurality of adjusting drives are installed in the drive mounting frame, and each adjusting drive is provided with a reset sensor at the side thereof; one end of the output shaft of the adjusting drive is connected with the pickup executor, and the other end is provided with a reset trigger piece.

[0025] When the adjusting drive drives the pickup executor to reset, the pickup executor rotates coaxially with the reset trigger piece, and the reset sensor determines that the pickup executor has returned to the initial position through the signal triggered by the reset trigger piece, and the resetting is completed.

[0026] Further, the mold closing and pressing unit comprises a pressing assembly, a pressing lifting drive for driving the pressing assembly to lift, and a pressing linear drive for driving the pressing assembly to move.

[0027] The pressing linear drive drives the pressing lifting drive to move, and then drives the pressing assembly to the mold to be pressed, the pressing lifting drive makes the pressing assembly contact and press the upper mold to be pressed, and the upper mold is closed and pressed with the lower mold after liquid injection.

[0028] Further, the pressing assembly comprises a pressing frame plate installed at the execution end of the pressing lifting drive, a pressing block mounting plate movably installed on the pressing frame plate, and a plurality of pressing standard blocks movably installed on the pressing block mounting plate.

[0029] Further, the turnover unit is further provided with an auxiliary support, and the liquid injection unit, the mold closing adjusting unit, the mold closing and pressing unit, and the tray carrying unit are installed within the turnover range of the turnover unit through the auxiliary support.

[0030] Compared with the prior art, the mold closing and pressing device has the following beneficial effects:

[0031] In actual use, the turnover unit drives the lower mold carrier to be filled with liquid to transfer, when the turnover unit drives the lower mold carrier to be filled with liquid to be located at the liquid filling unit, the liquid filling unit injects the liquid material into the empty lower mold of the lower mold carrier, and the liquid filling action is completed; the turnover unit moves the lower mold carrier loaded with the lower mold after liquid filling to the adjusting mold closing unit, the adjusting mold closing unit picks up the upper mold, adjusts the upper mold to match the lower mold, and places the matched upper mold in the lower mold after liquid filling; the turnover unit moves the lower mold carrier loaded with the matched mold closing mold to the mold closing and pressing unit, and the mold closing unit presses the placed upper mold in the lower mold;

[0032] The liquid filling and mold closing equipment for the contact lens astigmatism sheet has compact overall structure, integrates the functions of astigmatism sheet matching and mold closing, lower mold liquid filling and upper and lower mold pressing, integrates multiple processes, reduces redundant turnover, improves the processing efficiency of the astigmatism sheet, reduces the time, labor and equipment site cost caused by setting up independent equipment for astigmatism sheet mold closing, and improves the processing efficiency and quality of the contact lens as a whole. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a top view schematic diagram of the overall structure of the utility model;

[0034] Figure 2 It is a top view schematic diagram of the overall structure of the utility model;

[0035] Figure 3 It is a top view schematic diagram of the overall structure of the utility model;

[0036] Figure 4 It is a partial enlarged schematic diagram of B of the utility model;

[0037] Figure 5 It is a front view schematic diagram of the adjusting mold closing unit of the utility model;

[0038] Figure 6 It is a side view schematic diagram of the adjusting mold closing unit of the utility model;

[0039] Figure 7 It is a top view schematic diagram of the adjusting mold closing unit of the utility model;

[0040] Figure 8 It is a partial enlarged schematic diagram of A of the utility model. DETAILED DESCRIPTION

[0041] 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.

[0042] REFERENCE Figures 1-8As shown, a lens mold injection and assembly device for a contact lens astigmatic lens, comprising a carrier turnover unit 200 for turnover of a lower mold carrier 210, an injection unit 300 for injection of a lower mold arranged along a turnover path of the carrier turnover unit 200, an adjustment and assembly unit 400 for adjusting an upper mold to be matched with the lower mold, and a mold assembly and pressing unit 500;

[0043] The turnover unit 200 drives the lower mold carrier 210 loaded with the lower mold to be injected to the injection unit 300, the injection unit 300 injects liquid into the empty lower mold in the lower mold carrier 210, and the turnover unit 200 drives the lower mold carrier 210 loaded with the injected lower mold to the adjustment and assembly unit 400; the adjustment and assembly unit 400 picks up and adjusts the upper mold, and places the adjusted upper mold in the injected lower mold; the turnover unit 200 drives the matched upper and lower molds to the mold assembly and pressing unit 500, and the mold assembly and pressing unit 500 presses the upper and lower molds to complete the mold assembly.

[0044] In actual use, the turnover unit 200 drives the lower mold carrier 210 to be injected to perform turnover transmission, when the turnover unit 200 drives the lower mold carrier 210 to be located at the injection unit 300, the injection unit 300 injects liquid into the empty lower mold in the lower mold carrier 210, and completes the injection action; the turnover unit 200 moves the lower mold carrier 210 loaded with the injected lower mold to the adjustment and assembly unit 400, the adjustment and assembly unit 400 picks up the upper mold, adjusts the upper mold to match the lower mold, and places the matched upper mold in the injected lower mold; the turnover unit 200 moves the lower mold carrier 210 loaded with the matched mold to the mold assembly and pressing unit 500, and the mold assembly unit presses the placed upper mold in the lower mold.

[0045] The lens mold injection and assembly device for a contact lens astigmatic lens has a compact overall structure, integrates the functions of astigmatic lens matching and mold assembly, lower mold injection, and upper and lower mold pressing, integrates multiple processes, reduces redundant turnover, and improves the processing efficiency of the astigmatic lens; reduces the time, labor, and equipment site costs caused by setting up independent equipment for astigmatic lens mold assembly, and improves the processing efficiency and quality of the contact lens as a whole.

[0046] In this embodiment, a lower mold loading unit 100 is arranged at the inlet end of the turnover unit 200, and the inlet end and the outlet end of the turnover unit 200 are provided with a pallet unit 600 for carrying the lower mold carrier 210; the pallet unit 600 is used to carry the lower mold carrier 210 loaded with the lower mold to be injected from the outlet end of the lower mold loading unit 100 to the turnover unit 200, and carry the lower mold carrier 210 loaded with the mold assembly and pressing mold from the turnover unit 200;

[0047] Preferably, the turnover unit 200 is a disc type turnover device, the turnover path is a circle, the feeding end of the turnover unit 200 is provided with the lower mold feeding unit 100 for providing the lower mold material; and the feeding end and the discharging end of the turnover unit 100 are coincident positions, the disc carrying unit 600 is used to realize the feeding of the lower mold carrier 210 loaded with the lower mold to be injected and the discharging of the lower mold carrier 210 loaded with the mold after the mold is closed.

[0048] The disc carrying unit 600 in the embodiment comprises a disc carrying tool 630, a disc carrying lifting drive 620 for driving the disc carrying tool 630 to lift, and a disc carrying linear drive 610 for driving the disc carrying tool 630 to move; the disc carrying linear drive 610 drives the disc carrying lifting drive 620 to move between the lower mold feeding unit 100, the turnover unit 200 and the discharging position of the lower mold carrier 210; the disc carrying lifting drive 620 drives the disc carrying tool 630 to lift to pick up and place the lower mold carrier 210;

[0049] Preferably, the disc carrying lifting drive 620 is a lifting cylinder, the disc carrying linear drive 610 is a linear motor, and the disc carrying tool 630 is a component such as a suction cup or a clamping jaw that can realize the picking of the material disc; the disc carrying tool 630 is driven to reciprocate to realize the feeding and discharging of the lower mold carrier 210.

[0050] In the embodiment, the lower mold feeding unit 100 comprises a lower mold conveying device 130 for moving the lower mold carrier 210 loaded with the lower mold to be injected to the turnover unit 200, and a dust removal device 110 for removing dust from the moving lower mold carrier 210.

[0051] Preferably, the lower mold conveying device 130 is a material disc conveying belt, and the dust removal device 110 is an electrostatic dust collector for removing dust from the lower mold carrier 210 and the lower mold placed thereon conveyed by the lower mold conveying device 130.

[0052] In the embodiment, the injection unit 300 comprises a liquid storage bin 310 for storing liquid material and an injection device 320 for injecting the liquid material into the lower mold.

[0053] Preferably, the liquid storage bin 310 is a constant temperature storage bin to ensure the stability of the liquid material to be injected and improve the quality of injection and subsequent processing; and the injection device 320 is a multi-hole injection needle group for injecting the liquid material into the lower mold.

[0054] In the embodiment, the feeding end of the adjustment mold closing unit 400 is further provided with an upper mold feeding unit 700 and a temporary storage mechanism 440; the upper mold feeding unit 700 comprises an upper mold feeding device 710 and an upper mold carrying mechanism 720; the upper mold feeding device 710 conveys the material disc loaded with the upper mold to the upper mold carrying mechanism 720; and the upper mold carrying mechanism 720 carries the upper mold to be closed to the temporary storage mechanism 440.

[0055] Preferably, the upper mold feeding device 710 is a mold tray device carrying the upper mold, and the upper mold carrying mechanism 720 is a carrying mechanism with suction function, which carries the upper mold in the upper mold feeding device 710 to the temporary storage mechanism 440 to provide the required upper mold with mold clamping for the mold clamping unit 400;

[0056] In the embodiment, the temporary storage mechanism 440 includes a mold storage rack 441 for placing the upper mold, the mold storage rack 441 is connected to a dust removal cavity 442 for collecting and dispersing cleaning gas, the dust removal cavity 442 is connected to an air amplifier 443, and the air amplifier 443 is connected to an external cleaning gas source; when the upper mold is located at the mold storage rack 441 and is not placed, the air amplifier 443 is connected to the external cleaning gas source, and after the dust removal cavity 442 collects and disperses the cleaning gas, the gas is guided to blow the upper mold above the mold storage rack 441, and after the dust removal is completed, the upper mold is placed on the mold storage rack;

[0057] In the embodiment, the temporary storage mechanism 440 includes a mold storage rack 441, the mold storage rack 441 is connected to a dust removal cavity 442 for collecting and dispersing cleaning gas, the dust removal cavity 442 is connected to an air amplifier 443, and the air amplifier 443 is connected to an external cleaning gas source; the cleaning gas is ion wind with electrostatic dust removal function.

[0058] In the embodiment, the mold clamping unit 400 includes a mold clamping driving mechanism 420 for driving the pickup adjustment mechanism 430 to move, an upper mold recognition mechanism 411 for obtaining the marker point of the upper mold, and a lower mold recognition mechanism 412 for obtaining the marker point of the lower mold;

[0059] The upper mold recognition mechanism 411 and the lower mold recognition mechanism 412 respectively obtain the marker point of the upper mold and the marker point of the lower mold; the pickup adjustment mechanism 430 picks up and adjusts the upper mold to match the marker point of the upper mold with the marker point of the lower mold; the mold clamping driving mechanism 420 drives the pickup adjustment mechanism 430 to move the upper mold to the lower mold; the mold clamping driving mechanism 420 drives the pickup adjustment mechanism 430 to align and place the upper mold in the lower mold, and completes the mold clamping;

[0060] First, the upper mold recognition mechanism 411 and the lower mold recognition mechanism 412 obtain the marker points required for the upper mold and the lower mold to be matched and clamped, the mold clamping driving mechanism 420 drives the pickup adjustment mechanism 430 to pick up the upper mold to be clamped, and moves to the lower mold, and then the pickup adjustment mechanism 430 adjusts the upper mold to match the upper mold recognition point with the lower mold recognition point, and then the mold clamping driving mechanism 420 drives the pickup adjustment mechanism 430 to move the upper mold to the lower mold, and places the upper mold in the lower mold, and completes the mold clamping;

[0061] The recognition points of the upper mold and the lower mold are quickly recognized, the astigmatism axis matching function of the astigmatism sheet is integrated with the pick-and-place function, the quick rotation alignment of the contact lens astigmatism sheet is completed without extra turnover and complex actions, the automation of the astigmatism sheet processing is improved, and the contact lens production and processing efficiency is improved.

[0062] In the embodiment, the mold clamping driving mechanism 420 comprises a mold clamping translation driving 421 and a mold clamping lifting driving 422.

[0063] The mold clamping lifting driving 422 is installed at the execution end of the mold clamping translation driving 421, and the execution end of the mold clamping lifting driving 422 is provided with a mold clamping frame plate 423 for installing the pick-and-place adjusting mechanism 430.

[0064] The mold clamping translation driving 421 and the mold clamping lifting driving 422 are both linear motor modules with high-precision control, which can control the mold clamping frame plate 423 to realize accurate hovering and drive the pick-and-place adjusting mechanism 430.

[0065] In the embodiment, the pick-and-place adjusting mechanism 430 comprises a pick-and-place executor 435, an adjusting driving 432, and a driving mounting frame 431.

[0066] The adjusting driving 432 is installed in the driving mounting frame 431, and the adjusting driving 432 drives the pick-and-place executor 435 to rotate forward or reverse until the mark point of the upper mold matches the mark point of the lower mold; the pick-and-place executor 435 is used for picking and placing the upper mold to be clamped.

[0067] In the embodiment, a plurality of adjusting driving 432 are installed in the driving mounting frame 431, and each adjusting driving 432 is provided with a reset sensor 434 on the side; one end of the output shaft of the adjusting driving 432 is connected with the pick-and-place executor 435, and the other end is provided with a reset trigger piece 433.

[0068] When the pick-and-place executor 435 is driven by the adjusting driving 432 to reset, the pick-and-place executor 435 rotates coaxially with the reset trigger piece 433, and the reset sensor 434 determines that the pick-and-place executor 435 has returned to the initial position through the signal triggered by the reset trigger piece 433, and the reset is completed.

[0069] The pickup executor 435 adopts a pneumatic suction nozzle in the embodiment, the adjustment drive 432 selects a double-shaft type coded stepper motor, and synchronous output of the double shafts can be realized; the rotating output at one end is provided with a start trigger piece for triggering the reset inductor 434 to determine whether the pickup executor 435 reaches the initial position during the reset action; the output shaft at the other end is used to drive the pickup executor 435 to realize high-precision rotation and drive the upper mold to rotate until the upper mold is aligned with the lower mold; a plurality of adjustment drives 432 are arranged in a matrix as needed to adapt to different types of trays, realize single completion of the rotating die combining operation of multiple molds, improve the synchronization rate of each operation, and further improve the efficiency of the rotating die combining operation.

[0070] In the embodiment, the upper mold recognition mechanism 411 is provided with an upper mold light source 413 for supplementing light for the upper mold; the upper mold light source 413 cooperates with the upper mold recognition mechanism 411 to supplement light for the upper mold, so that the mark point information of the upper mold is more clearly acquired, the accuracy of adjusting the combined mold is improved, and the overall production and processing efficiency is further improved.

[0071] In the embodiment, the combined mold pressing unit 500 includes a pressing assembly 530, a pressing lifting drive 520 for driving the pressing assembly 530 to lift, and a pressing linear drive 510 for driving the pressing assembly 530 to move; the pressing linear drive 510 drives the pressing lifting drive 520 to move, and then drives the pressing assembly 530 to the mold to be pressed, so that the pressing lifting drive 520 makes the pressing assembly 530 contact and press the upper mold to be pressed, and the upper mold is combined and pressed with the lower mold after liquid injection.

[0072] In the embodiment, the pressing assembly 530 includes a pressing frame plate 531 mounted at the execution end of the pressing lifting drive 520, a pressing block mounting plate 532 movably mounted on the pressing frame plate 531, and a plurality of pressing standard blocks 533 movably mounted on the pressing block mounting plate 532; the mounting pitch of the plurality of pressing standard blocks 533 is consistent with the mold pitch of the lower mold carrier 210.

[0073] The pressing block mounting plate 532 is movably assembled on the pressing frame plate 531 by means of a detachable assembly structure such as a bolt or a buckle; the pressing standard block 532 is a prefabricated standard weight block; the pressing standard block 532 can be quickly adjusted corresponding to different lower mold carriers 210 and different models of molds, is suitable for various production lines, trays and mold standards, and improves the pressing efficiency of the upper and lower molds and the adjustment and debugging efficiency of the production line.

[0074] In the embodiment, the turnover unit 200 is further provided with an auxiliary support 220, and the liquid injection unit, the adjustment and combination unit 400, the combined mold pressing unit 500 and the tray carrying unit 600 are all installed within the turnover range of the turnover unit 200 through the auxiliary support 220.

[0075] 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 liquid injection and molding device for astigmatic contact lenses, characterized in that, The application relates to a mold injection system, which comprises a mold carrier turnover unit (200) for turnover of a lower mold carrier (210), an injection unit (300) for injection of liquid into the lower mold arranged along a turnover path of the mold carrier turnover unit (200), an adjustment mold closing unit (400) for adjusting an upper mold to be matched with the lower mold, and a mold closing and pressing unit (500). The mold carrier turnover unit (200) drives the lower mold carrier (210) loaded with a lower mold to be injected with liquid to the injection unit (300), the injection unit (300) injects liquid into the empty lower mold in the lower mold carrier (210), the mold carrier turnover unit (200) drives the lower mold carrier (210) loaded with the lower mold after injection to the adjustment mold closing unit (400), the adjustment mold closing unit (400) picks up and adjusts the upper mold and places the upper mold into the lower mold after injection, the mold carrier turnover unit (200) drives the matched upper mold and lower mold to the mold closing and pressing unit (500), and the mold closing and pressing unit (500) closes and presses the upper mold and the lower mold to complete mold closing.

2. The apparatus for molding a contact lens with a prism wedge according to claim 1, wherein The mold carrier turnover unit (200) is provided with a lower mold loading unit (100) at an inlet end, and the inlet end and an outlet end of the mold carrier turnover unit (200) are provided with a tray carrying unit (600) for carrying the lower mold carrier (210). The tray carrying unit (600) is used for carrying the lower mold carrier (210) loaded with a lower mold to be injected from the outlet end of the lower mold loading unit (100) to the mold carrier turnover unit (200), and carrying the lower mold carrier (210) loaded with the mold after closing and pressing from the mold carrier turnover unit (200).

3. The apparatus for molding a contact lens with a prism wedge of claim 2, wherein, The tray carrying unit (600) comprises a tray carrying tool (630), a tray lifting drive (620) for driving the tray carrying tool to lift, and a tray linear drive (610) for driving the tray carrying tool (630) to move. The tray linear drive (610) drives the tray lifting drive (620) to move between the lower mold loading unit (100), the mold carrier turnover unit (200) and the lower mold carrier (210) outlet, and the tray lifting drive (620) drives the tray carrying tool (630) to lift, grab and place the lower mold carrier (210). The lower mold loading unit (100) comprises a lower mold conveying device (130) for moving the lower mold carrier (210) loaded with a lower mold to be injected to the mold carrier turnover unit (200), and a dust removal device (110) for removing dust from the moving lower mold carrier (210).

4. The apparatus for molding a contact lens with a prism wedge of claim 1 wherein, The injection unit (300) comprises a liquid storage bin (310) for storing liquid material and an injection device (320) for injecting the liquid material into the lower mold.

5. The apparatus for molding a contact lens with a prism wedge of claim 1 wherein, The upper mold loading unit (700) of the adjustment mold closing unit (400) is further provided with an upper mold loading unit (700) and a temporary storage mechanism (440), and the upper mold loading unit (700) comprises an upper mold feeding device (710) and an upper mold carrying mechanism (720). The upper mold feeding device (710) carries a tray loaded with an upper mold to the upper mold carrying mechanism (720), and the upper mold carrying mechanism (720) carries the upper mold to be closed to the temporary storage mechanism (440).

6. The apparatus for molding a contact lens with a prism wedge of claim 5, wherein, The temporary storage mechanism (440) comprises a die storage rack (441) for placing the upper die, the die storage rack (441) is connected to a dust removal cavity (442) for collecting and distributing clean gas, the dust removal cavity (442) is communicated with an air amplifier (443), and the air amplifier (443) is connected to an external clean gas source; When the upper die is located at the die storage rack (441) and is not placed, the air amplifier (443) is connected to the external clean gas source, the dust removal cavity (442) collects and distributes clean gas, and then guides the clean gas to blow the upper die above the die storage rack (441), and after the dust removal is completed, the upper die is placed on the die storage rack.

7. The apparatus for molding a contact lens with a prism wedge of claim 1 wherein, The adjusting and closing unit (400) comprises a pickup adjusting mechanism (430), a closing driving mechanism (420) for driving the pickup adjusting mechanism (430) to move, an upper die recognition mechanism (411) for acquiring a mark point of the upper die, and a lower die recognition mechanism (412) for acquiring a mark point of the lower die; The upper die recognition mechanism (411) and the lower die recognition mechanism (412) acquire the mark point of the upper die and the mark point of the lower die respectively; the pickup adjusting mechanism (430) picks up and adjusts the upper die so that the mark point of the upper die matches the mark point of the lower die; the closing driving mechanism (420) drives the pickup adjusting mechanism (430) to move the upper die to the lower die; and the closing driving mechanism (420) drives the pickup adjusting mechanism (430) to place the upper die in the lower die in a position, and the closing is completed.

8. The apparatus for molding a contact lens with a prism wedge of claim 7, wherein, The closing driving mechanism (420) comprises a closing translation driving (421) and a closing lifting driving (422); The closing lifting driving (422) is installed at an execution end of the closing translation driving (421); and the execution end of the closing lifting driving (422) is provided with a closing rack plate (423) for installing the pickup adjusting mechanism (430).

9. The apparatus for molding a contact lens with a prism wedge of claim 7, wherein, The pickup adjusting mechanism (430) comprises a pickup executor (435), an adjusting driving (432), and a driving mounting rack (431); The adjusting driving (432) is installed in the driving mounting rack (431), the adjusting driving (432) drives the pickup executor (435) to rotate forward or reversely until the mark point of the upper die matches the mark point of the lower die; and the pickup executor (435) is used for picking up and placing the upper die to be closed.

10. The apparatus for molding a contact lens with a prism wedge of claim 9, wherein, A plurality of adjusting drivings (432) are installed in the driving mounting rack (431), each adjusting driving (432) is provided with a reset sensor (434) at a side thereof; one end of an output shaft of the adjusting driving (432) is connected to the pickup executor (435), and the other end is provided with a reset trigger piece (433); When the pickup executor (435) is reset by the adjusting driving (432) after the adjustment of the upper die is completed, the pickup executor (435) rotates coaxially with the reset trigger piece (433), and the reset sensor (434) determines that the pickup executor (435) has returned to the initial position through the signal triggered by the reset trigger piece (433), the reset is completed, and the pickup executor (435) waits for the next adjustment of the upper die.

11. The apparatus for molding a contact lens with a prism wedge of claim 1, wherein, The mold closing and pressing unit (500) comprises a pressing assembly (530), a pressing lifting drive (520) for driving the pressing assembly (530) to lift, and a pressing linear drive (510) for driving the pressing assembly (530) to move; The pressing linear drive (510) drives the pressing lifting drive (520) to move, and then drives the pressing assembly (530) to the mold to be closed and pressed, and the pressing lifting drive (520) makes the pressing assembly (530) contact and press the upper mold to be closed and pressed, and closes and presses the upper mold and the lower mold after liquid injection.

12. The apparatus for molding a contact lens with a prism wedge of claim 11 wherein, The pressing assembly (530) comprises a pressing frame plate (531) mounted on the execution end of the pressing lifting drive (520), a pressing block mounting plate (532) movably mounted on the pressing frame plate (531), and a plurality of pressing standard blocks (533) movably mounted on the pressing block mounting plate (532).

13. The apparatus for molding a contact lens with a prism wedge of claim 2, wherein, The turnover unit (200) is further provided with an auxiliary support (220), and the liquid injection unit, the mold adjusting unit (400), the mold closing and pressing unit (500), and the tray carrying unit (600) are all installed in the turnover range of the turnover unit (200) through the auxiliary support (220).

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