Top sheet mechanism and contact lens demoulding device and operation method thereof

Abstract

The present invention discloses a top sheet mechanism and a contact lens demolding device and an operating method thereof, which is a transparent top sheet mechanism. The top sheet mechanism of the present invention at least includes: a clamping claw module and a push rod module, the push rod module includes a plurality of inner push rods and a plurality of outer push rods correspondingly surrounding the inner push rods, wherein the plurality of inner push rods and the plurality of outer push rods are correspondingly arranged below the accommodating groove; thereby, the present invention effectively separates the lens from the plasticizing mold through the design of the inner push rods and the outer push rods, which has the major advantage of improving the success rate of lens removal.

Description

Technical Field

[0001] The present invention relates to a contact lens demoulding device, and more particularly to a push rod module having an inner push rod and an outer push rod, so as to effectively improve the success rate of removing lenses, a contact lens demoulding device and an operating method thereof. Background Art

[0002] Due to the popularity of electronic products and their long-term use, the number of people wearing contact lenses has doubled, increasing the demand for contact lenses. Therefore, how to improve the production time of contact lenses and increase the lens yield has gradually become an issue that the industry urgently needs to solve.

[0003] Conventional contact lens demolding equipment is broadly categorized into various demolding methods, including water-based demolding, ultrasonic demolding, and ejection demolding. However, water-based demolding requires the lens to be immersed in a liquid to soften and release the lens during the manufacturing process, and manual inspection is also required. This process is not only cumbersome and time-consuming, but also requires a significant amount of manpower. Ultrasonic demolding utilizes ultrasound to release the lens from the mold through frequency and vibration. However, if the lens material is highly viscous, demolding takes a long time and is difficult to achieve, which can lead to incomplete demolding and lens breakage, resulting in an increase in defective products. Ejection demolding utilizes an ejector rod to directly push the lens out of the mold. However, conventional ejector rods are all solid rods, and most of them push directly against the mold through the top surface of the solid rod. Therefore, if the push position is offset, the lens can easily break, resulting in undesirable situations. Furthermore, if the lens material is highly viscous, forcefully ejecting the lens can exacerbate the breakage.

[0004] In view of the above-mentioned deficiencies, how to effectively avoid lens damage during removal and improve the yield rate of lens removal through innovative hardware design is a problem that developers and researchers in the contact lens equipment industry must continue to work hard to overcome and solve. Summary of the Invention

[0005] The main purpose of the present invention is to provide a top sheet mechanism and a contact lens demoulding device and an operating method thereof. The top sheet mechanism has a structural design with an inner ejector rod and an outer ejector rod, which can effectively improve the advantage of successful lens removal.

[0006] In order to achieve the above-mentioned implementation purpose, the inventors propose a top sheet mechanism, which is arranged in a contact lens demolding device, and the top sheet mechanism at least includes: a clamping claw module, which includes at least a first module block and a second module block, and a plurality of accommodating grooves are formed between the first module block and the second module block; a push rod module, which includes a plurality of inner push rods and a plurality of outer push rods correspondingly surrounding the outside of the inner push rods, wherein a plurality of the inner push rods and a plurality of the outer push rods are correspondingly arranged below the accommodating grooves; wherein the other end of the plurality of outer push rods of the push rod module relative to the accommodating groove abuts against an outer push rod linkage block, and an outer push rod driving unit is further provided on one side of the outer push rod linkage block; and the other end of the plurality of inner push rods of the push rod module relative to the accommodating groove abuts against an inner push rod linkage block, and an inner push rod driving unit is further provided on one side of the inner push rod linkage block, wherein the inner push rod driving unit is arranged parallel to the outer push rod driving unit. Accordingly, the structural design of the ejector mechanism having an inner ejector rod and an outer ejector rod can effectively improve the success rate of removing the lens.

[0007] As described above, the top sheet mechanism is provided with a pressing module above the clamping jaw module, and the pressing module includes at least one pressing member, and a plurality of slots are provided above the pressing member, and the pressing member is electrically connected to a pressing drive unit, so that the plurality of slots are correspondingly arranged on the plurality of the receiving grooves of the clamping jaw module, and is driven downward by the pressing drive unit, and the pressing member is driven to press downward and contact the clamping jaw module.

[0008] The ejector mechanism as described above further comprises a bracket assembly, and at least one track module is provided above the bracket assembly for allowing the ejector module to perform lateral movement.

[0009] In the top sheet mechanism as described above, the first module block of the clamping jaw module is electrically connected to a first opening and closing drive unit; and the second module block is electrically connected to a second opening and closing drive unit.

[0010] In the top sheet mechanism as described above, the top end of the outer push rod protrudes from the top end of the inner push rod.

[0011] In the top sheet mechanism as described above, the top end of the outer push rod is flush with the top end of the inner push rod.

[0012] In the ejector mechanism as described above, the outer ejector rod and the inner ejector rod are synchronously lifted and gradually separate the lens from the plasticizing mold.

[0013] In the ejector mechanism as described above, the outer ejector rod and the inner ejector rod are lifted in an alternating manner to gradually separate the lens from the plasticizing mold.

[0014] In order to achieve another implementation purpose mentioned above, the present inventors have proposed a contact lens demolding device, which comprises at least: a feeding mechanism, which provides a plurality of plasticizing molds, wherein the plasticizing molds include an upper mold and a lower mold corresponding to one side of the upper mold, wherein a contact lens is disposed between the upper and lower molds; a mold separation mechanism, which is disposed after the feeding mechanism and is used to separate the upper and lower molds of the plasticizing molds; a flipping mechanism, which is disposed after the mold separation mechanism and is used to flip the lower mold and contact lens retained after mold separation; a top plate mechanism as described above, which is disposed after the flipping mechanism and uses a push rod module to squeeze the lower mold to separate the contact lens from the lower mold; and a robot arm removal mechanism, which is disposed after the top plate mechanism and is provided with a suction nozzle to remove the contact lens from the lower mold and place it on a glass carrier. Accordingly, the structural design of the top plate mechanism with an inner push rod and an outer push rod can effectively improve the yield rate of lens removal.

[0015] The contact lens demoulding device as described above is further provided with a residual material detection mechanism, which is arranged between the mold separation mechanism and the flipping mechanism to detect residual material on the lower mold and the contact lens.

[0016] The contact lens demolding device as described above is further provided with a pre-clamping mechanism, which is arranged between the top plate mechanism and the flipping mechanism. A pre-clamping claw module applies lateral pressure to the lower mold of the plasticizing mold at least once, so that a micro gap is generated between the contact lens and the lower mold.

[0017] The contact lens demoulding device as described above is further provided with a residual material detection mechanism, which is arranged between the top plate mechanism and the flip mechanism to detect residual material on the lower mold and the contact lens.

[0018] The contact lens demolding device as described above is further provided with a pre-elevating mechanism, which is arranged between the feeding mechanism and the demolding mechanism, and is clamped and fixed to the lower mold by a pre-elevating clamping claw module, and then the lower mold is pressed down by at least one pre-elevating rod provided at one end of the pre-elevating clamping claw module, so that a micro gap is generated between the upper mold and the lower mold.

[0019] In order to achieve another embodiment of the present invention, the present inventors have proposed an operating method for a contact lens demolding device, which is applicable to the contact lens demolding device described above, and comprises at least the following steps: Step 1: a feeding step, wherein a plurality of plasticizing molds are provided by the feeding mechanism; Step 2: a plasticizing mold separation step, wherein the upper mold and the lower mold of the plasticizing mold are separated by the separation mechanism, which is disposed after the feeding mechanism; Step 3: a flipping step, wherein the lower mold and the contact lens retained after the separation are flipped by the flipping mechanism, which is disposed after the separation mechanism; Step 4: a flipping step, wherein the lower mold and the contact lens retained after the separation are flipped by the flipping mechanism; Step 5: a flipping step, wherein the upper mold and the lower mold of the contact lens retained after the separation are flipped by the flipping mechanism. Step 4: Lens ejection step, in which the ejector mechanism, located behind the flip mechanism, squeezes the lower mold using the ejector module to separate the contact lens from the lower mold. Step 5: Robotic lens removal step, in which the robotic arm mechanism, located behind the ejector mechanism, removes the contact lens from the lower mold using the suction nozzle and places it on a glass carrier. Step 6: Automatic optical lens inspection step, in which the quality of the contact lenses is inspected using at least one inspection station. Step 7: Classification and tray discharge step, in which the inspected contact lenses are sorted and discharged.

[0020] The operating method of the contact lens demoulding equipment as described above, wherein after the step 2 and before the step 3, further comprises the following step: a residual material detection step, in which the residual material of the lower mold and the contact lens is detected by the residual material detection mechanism.

[0021] The method for operating the contact lens demolding device as described above, wherein between step three and step four, the following step is further included: a pre-clamping step, wherein the pre-clamping mechanism is used to apply lateral pressure to the lower mold of the plasticizing mold at least once through a pre-clamping jaw module, so that a micro gap is generated between the contact lens and the lower mold.

[0022] The operating method of the contact lens demolding equipment as described above, wherein the following steps are further included between step one and step two: a pre-elevation mold separation step, using the pre-elevation mechanism and clamping and fixing it to the lower mold through a pre-elevation clamping claw module, and then pressing the lower mold downward with at least one pre-elevation rod provided at one end of the pre-elevation clamping claw module to create a micro gap between the upper mold and the lower mold.

[0023] The operating method of the contact lens demoulding equipment as described above, wherein the following step is further included after step three and before step four: a residual material detection step, in which the residual material of the lower mold and the contact lens is detected by the residual material detection mechanism.

[0024] The operating method of the contact lens demolding equipment as described above, wherein after this step and before the step four, further includes the following steps: a clamping and pressing step, in which the lower mold is clamped laterally by the clamping claw module of the top sheet mechanism, and the outer ring fixed to the lower mold is pressed down by a pressing module.

[0025] Thus, the ejector mechanism and contact lens demoulding device and operating method of the present invention mainly utilize the structural design of the inner ejector rod and the outer ejector rod to effectively improve the success rate of removing the lens and other major advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 : A three-dimensional diagram of the ejector module of a preferred embodiment of the ejector mechanism of the present invention.

[0027] Figure 2 : A three-dimensional diagram of a preferred embodiment of the top plate mechanism of the present invention.

[0028] Figure 3A : A side view of a preferred embodiment of the top plate mechanism of the present invention.

[0029] Figure 3B : Another side view of a preferred embodiment of the top plate mechanism of the present invention.

[0030] Figure 4A : Operation schematic diagram of a preferred embodiment of the top sheet mechanism of the present invention (1).

[0031] Figure 4B : Schematic diagram of the operation of one preferred embodiment of the top plate mechanism of the present invention (two).

[0032] Figure 4C : Operation schematic diagram of one preferred embodiment of the top sheet mechanism of the present invention (three).

[0033] Figure 5 : A three-dimensional diagram of the clamping module of a preferred embodiment of the top plate mechanism of the present invention.

[0034] Figure 6 : A three-dimensional diagram of a second preferred embodiment of the top plate mechanism of the present invention.

[0035] Figure 7A : Side view of a second preferred embodiment of the top plate mechanism of the present invention.

[0036] Figure 7B : Another side view of a second preferred embodiment of the top sheet mechanism of the present invention.

[0037] Figure 8 : A schematic diagram of a preferred embodiment of a contact lens demoulding device of the present invention.

[0038] Figure 9 : Flowchart of one preferred embodiment of contact lens demoulding equipment of the present invention.

[0039] Figure 10 : A schematic diagram of a second preferred embodiment of a contact lens demoulding device of the present invention.

[0040] Figure 11 : Flowchart of its second preferred embodiment of contact lens demoulding equipment of the present invention.

[0041] Figure 12 : A three-dimensional view of the lower clamping jaws of the mold separation mechanism of a preferred embodiment of the contact lens demoulding device of the present invention.

[0042] Figure 13 : A schematic diagram of the upper mold clamping of the parting mechanism of a preferred embodiment of the contact lens demoulding device of the present invention.

[0043] Figure 14 : A schematic diagram of the lower mold clamping of the parting mechanism of a preferred embodiment of the contact lens demoulding device of the present invention.

[0044] Figure 15 : A three-dimensional diagram of the flipping mechanism of one preferred embodiment of the contact lens demoulding device of the present invention.

[0045] Figure 16 : A three-dimensional diagram of the pre-clamping mechanism of a preferred embodiment of a contact lens demoulding device of the present invention.

[0046] Figure 17 : A schematic diagram of the film-taking action of one preferred embodiment of the contact lens demoulding device of the present invention.

[0047] Figure 18 : A three-dimensional diagram of the pre-top mechanism of the second preferred embodiment of the contact lens demoulding equipment of the present invention.

[0048] Figure 19 : A schematic diagram of the operation of the pre-top mechanism of the second preferred embodiment of the contact lens demoulding equipment of the present invention.

[0049] Figure 20 : A three-dimensional diagram of the splitting mechanism of the second preferred embodiment of the contact lens demoulding device of the present invention.

[0050] Figure 21 : The mold splitting diagram of the mold splitting mechanism of the second preferred embodiment of the contact lens demoulding equipment of the present invention.

[0051] Description of the figure number:

[0052] 100: Top sheet mechanism 10: Clamping claw module

[0053] 11: First module block 111: First opening and closing drive unit

[0054] 12: Second module block 121: Second opening and closing drive unit

[0055] 13: Storage tank

[0056] 20: ejector module 21: inner ejector

[0057] 211: Inner push rod linkage block 212: Inner push rod drive unit

[0058] 22: External ejector 221: External ejector linkage block

[0059] 222: External ejector drive unit 24: Bracket assembly

[0060] 25: Track Module

[0061] 30: Pressing die 31: Pressing parts

[0062] 311: slotted 32: pressed drive unit

[0063] 200: feeding mechanism 300: parting mechanism

[0064] 301: Upper clamp 3011 Upper clamp first module

[0065] 3012 Upper clamping jaw Second module block 302: Lower clamping jaw

[0066] 3021 Lower clamping jaw first module block 3022 Lower clamping jaw second module block

[0067] 3023 Lower jaw first drive unit 3024 Lower jaw second drive unit

[0068] 400: Residue detection agency

[0069] 500: flip mechanism 510: carrier 520: Flip drive unit

[0070] 600: Pre-clamping mechanism 610: Pre-clamping jaw module

[0071] 700: Robotic arm taking film mechanism 710: Suction nozzle

[0072] 800: Pre-top mechanism 810: Pre-top clamping module 820: Pre-ejector

[0073] 1000: Contact lens demoulding equipment

[0074] P: Plasticizing mold PU: Upper mold

[0075] PD: lower mold G: lens. DETAILED DESCRIPTION

[0076] First, see Figure 1 and Figure 2Figure 2 shows a perspective view of a push rod module and a perspective view of the push rod mechanism of a preferred embodiment of the present invention. A push rod mechanism is provided, disposed within a contact lens demolding device. The push rod module 100 comprises at least: a clamping jaw module 10; and a push rod module 20. The push rod module 20 comprises a plurality of inner push rods 21 and a plurality of outer push rods 22 surrounding the inner push rods 21. The push rod mechanism's structural design, comprising both inner and outer push rods, effectively improves lens removal success.

[0077] Please also refer to Figure 3A and Figure 3B The figure shows a side view and another side view of a preferred embodiment of the ejector mechanism of the present invention. In one embodiment of the present invention, the ejector module 20 includes a plurality of inner ejectors 21 and a plurality of outer ejectors 22, wherein the plurality of inner ejectors 21 and the plurality of outer ejectors 22 are correspondingly arranged below the accommodating groove 13; wherein the plurality of outer ejectors 22 of the ejector module 20 are abutted against an outer ejector linkage block 221 at the other end relative to the accommodating groove 13, and an outer ejector driving unit 222 is further provided on one side of the outer ejector linkage block 221; and the plurality of inner ejectors 21 of the ejector module 20 are abutted against an inner ejector linkage block 211 at the other end relative to the accommodating groove 13, and an inner ejector driving unit 212 is further provided on one side of the inner ejector linkage block 211, wherein the inner ejector driving unit 212 is The outer ejector rod driving unit 222 is arranged in parallel; in one embodiment of the present invention, the top end of the outer ejector rod 22 protrudes from the top end of the inner ejector rod 21, and the outer ejector rod 22 and the inner ejector rod 21 gradually peel the lens from the plasticizing mold in any manner such as synchronous lifting, progressive lifting or staggered lifting; in another embodiment of the present invention, the top end of the outer ejector rod 22 is aligned with the top end of the inner ejector rod 21, and the outer ejector rod 22 and the inner ejector rod 21 gradually peel the lens from the plasticizing mold in any manner such as synchronous lifting, progressive lifting or staggered lifting; accordingly, the inner ejector rod 21 and the outer ejector rod 22 can operate independently through the outer ejector rod driving unit 222 and the inner ejector rod driving unit 212, and can each be combined with a lifting method to press the plasticizing mold so that the lens can be completely peeled off, thereby improving the yield rate.

[0078] Please also refer to Figures 4A to 4CAs shown, it is a schematic diagram (1), (2) and (3) of the operation of a preferred embodiment of the ejector mechanism of the present invention. In one embodiment of the present invention, the other end of the plurality of inner ejectors 21 relative to the accommodating groove 13 is abutted against the inner ejector linkage block 211, and the inner ejector driving unit 212 is further provided on one side of the inner ejector linkage block 211, and the plurality of outer ejectors 22 are correspondingly arranged below the accommodating groove 13; wherein the other end of the plurality of outer ejectors 22 of the ejector module 20 relative to the accommodating groove 13 is abutted against the outer ejector linkage block 221, and the outer ejector driving unit 222 is further provided on one side of the outer ejector linkage block 221; when the present invention is actually implemented, first, the clamping jaw module 10 of the ejector mechanism 100 is able to clamp and fix at least one lower mold PD (such as Figure 4A ), and the outer ring of the lower mold PD of the plasticizing mold P is pressed by the outer ejector 22 of the ejector mold assembly 20 (such as Figure 4B ); Then, the inner push rod 21 presses the center of the lower mold PD of the plasticizing mold P (such as Figure 4C ), and then gradually create gaps between the contact lens G in the plasticizing mold P and completely peel off the contact lens G by staggered lifting, progressive lifting, or synchronous lifting, which can effectively reduce the rate of fragmentation during peeling. However, the lifting method of the present invention is not limited to this and will not be described in detail here.

[0079] Please also refer to Figure 5 The figure shows a three-dimensional diagram of a clamping module of a preferred embodiment of the top sheet mechanism of the present invention. In the embodiment, the clamping module 10 includes at least a first module block 11 and a second module block 12, and a plurality of accommodating grooves 13 are formed between the first module block 11 and the second module block 12, wherein the plurality of accommodating grooves 13 are correspondingly provided with a plurality of plasticizing molds P. In one embodiment of the present invention, the first module block 11 of the clamping module 10 is electrically connected to a first opening and closing drive unit 111; and the second module block 12 is electrically connected to a second opening and closing drive unit 121; when the present invention is actually implemented, the first opening and closing drive unit 111 and the second opening and closing drive unit 121 respectively drive the first module block 11 and the second module block 12 to move linearly, so that the first module block 11 and the second module block 12 can approach or move away from each other, so as to achieve the function of clamping and positioning the plasticizing mold.

[0080] Please also refer to Figure 6 and Figure 7A and Figure 7BThe figure shows a stereoscopic view, a side view and another side view of the second preferred embodiment of the top sheet mechanism of the present invention. In the second preferred embodiment of the top sheet mechanism of the present invention, the present invention further provides a top sheet mechanism 100, which is arranged in a contact lens demolding device, and the top sheet mechanism 100 at least includes: a clamping jaw module 10; and a push rod module 20, the push rod module 20, including a plurality of inner push rods 21 and a plurality of outer push rods 22 correspondingly surrounding the inner push rods 21; wherein a pressing module 30 is further provided above the clamping jaw module 10, and the pressing module 30 includes at least a pressing part 31, the pressing part 32 1 is provided with a plurality of slots 311 on the top, and the pressing member 31 is electrically connected to a pressing driving unit 32, so that the plurality of slots 311 are correspondingly arranged on the plurality of receiving grooves 13 of the clamping jaw module 10. The pressing driving unit 32 drives the pressing member 31 downward, and drives the pressing member 31 to press downward and contact the receiving grooves 13 of the clamping jaw module 10, thereby effectively pressing and positioning the plasticizing mold P, avoiding displacement of the plasticizing mold and resulting in defects during lens peeling or difficulty in peeling due to adhesion due to the characteristics of the lens.

[0081] See also Figure 8 and Figure 10 , which are schematic diagrams of a preferred embodiment of a contact lens demoulding device of the present invention and a schematic diagram of a second preferred embodiment thereof, the present invention provides a contact lens demoulding device 1000, the contact lens demoulding device 1000 comprising at least: a feeding mechanism 200, providing a plurality of plasticizing molds P, wherein the plasticizing mold P comprises an upper mold PU and a lower mold PD correspondingly arranged on one side of the upper mold PU, wherein a contact lens G is arranged between the upper mold PU and the lower mold PD; a mold separation mechanism 300, disposed after the feeding mechanism 200, and used for separating the upper mold PU and the lower mold PD of the plasticizing mold P; a flipping mechanism 500, disposed after the mold separation mechanism 300, and used for flipping the lower mold PD and the contact lens G retained after mold separation; a top sheet mechanism 100 as described above (such as Figure 2 or Figure 6), which is arranged behind the flipping mechanism 500, and uses the ejector module 20 to extrude the lower mold PD to separate the contact lens G from the lower mold PD; a robot arm film taking mechanism 700, which is arranged behind the ejector mechanism 100, and is provided with a suction nozzle 710, for taking the contact lens G from the lower mold PD and placing it on a glass carrier; accordingly, the present invention further provides an operating method of a contact lens demolding device, which is applicable to a contact lens demolding device as described above, which at least includes the following steps: Step 1 S1: a feeding step, through the feeding mechanism 200, providing a plurality of the plasticizing molds P, for feeding the material into a row through a vibration plate, and the number of rows is customized according to user needs. Step 2 S2: Plasticizing mold separation step, through the mold separation mechanism 300, which is arranged behind the feeding mechanism 200 and is used to separate the upper mold PU and the lower mold PD of the plasticizing mold P; Step 3 S3: Flipping step, through the flipping mechanism 500, which is arranged behind the mold separation mechanism 300, and is used to flip the lower mold PD and the contact lens G retained after mold separation; Step 4 S4: Lens ejection step, through the ejector mechanism 100 arranged behind the flipping mechanism 500, using the ejector module 20 to squeeze the lower mold PD, so that the contact lens G and the lower mold PD are separated. The mold PD is separated; step five S5: a robotic arm lens taking step, through the robotic arm taking mechanism 700 set behind the top plate mechanism 100, and the contact lens G is taken out from the lower mold PD by the suction nozzle 710 and placed on a glass carrier; step six S6: an automatic optical lens inspection step, through at least one inspection station to inspect the quality of the contact lens G; and step seven S7: a classification and tray discharge step, the inspected contact lens G is classified and discharged; accordingly, the structural design of the top plate mechanism with an inner ejector rod and an outer ejector rod can effectively improve the yield rate of lens removal.

[0082] Please also refer to Figure 8 and Figure 9 FIG. 1 is a schematic diagram and flow chart of a preferred embodiment of a contact lens demolding device according to the present invention. In one embodiment of the present invention, the contact lens demolding device is a color lens demolding device. The device further comprises a residual material detection mechanism 400, which is disposed between the mold separation mechanism 300 and the flipping mechanism 500 and is used to detect residual material in the lower mold PD and the contact lens G. A pre-clamping mechanism 600 is disposed between the ejection mechanism 100 and the flipping mechanism 500 and applies at least one lateral pressure to the lower mold PD of the plasticizing mold P via a pre-clamping jaw module 610, thereby creating a micro-gap between the contact lens G and the lower mold PD. Furthermore, the present invention provides an operating method for a contact lens demolding device, applicable to the contact lens demolding device described above (i.e., a color lens demolding device), comprising at least the following steps:

[0083] Step 1 S1: a material feeding step, wherein a plurality of the plasticizing molds P are provided through the material feeding mechanism 200, and are used to feed the materials in rows through the vibration plate, and the number of rows can be customized according to user needs.

[0084] Step 2 S2: Plasticizing mold separation step; please refer to Figure 20 FIG. 1 is a perspective view of a mold separation mechanism of a contact lens demolding device according to the present invention, wherein the mold separation mechanism 300 comprises an upper clamping jaw 301 and a lower clamping jaw 302, wherein the upper clamping jaw 301 further comprises an upper clamping jaw first module block 3011 and an upper clamping jaw second module block 3012, wherein the upper clamping jaw first module block 3011 of the upper clamping jaw 301 is electrically connected to an upper clamping jaw first driving unit (not shown); and the upper clamping jaw second module block 3012 is electrically connected to an upper clamping jaw second driving unit (not shown). By clamping the upper clamping jaw first module block 3011 and the upper clamping jaw second module block 3012, the lower mold PD of the plasticizing mold P is fixed. Please also refer to FIG. Figures 12 to 14 1 and 2 are a perspective view of the lower clamping jaw of the mold separation mechanism, a schematic diagram of the upper mold clamping, and a schematic diagram of the lower mold clamping of a preferred embodiment of the contact lens demolding device of the present invention, wherein the lower clamping jaw 302 further includes a lower clamping jaw first module block 3021 and a lower clamping jaw second module block 3022, wherein the lower clamping jaw first module block 3021 of the lower clamping jaw 302 is electrically connected to the lower clamping jaw first driving unit 3023; and the lower clamping jaw second module block 3022 is electrically connected to the lower clamping jaw second module block 3023. The drive unit 3024 is primarily located behind the feed mechanism 200 via the mold separation mechanism 300 and is used to separate the upper mold PU from the lower mold PD of the plasticizing mold P. Specifically, the mold separation mechanism 300 clamps the lower mold PD of the plasticizing mold P with the upper clamping jaw 301 and then deforms the upper mold PU with an overpressure force using the lower clamping jaw 302, creating a gap between the upper mold PU and the lower mold PD. The upper clamping jaw 301 then pulls the upper mold PU upward and moves it to the inspection station for testing. After step 2 S2 and before step 3 S3, the following step S21 is further included: a residual material inspection step, in which a residual material inspection mechanism 400 inspects the lower mold PD and the contact lens G for residual material, thereby determining the quality of the contact lens within the lower mold of the plasticizing mold.

[0085] Step 3 S3: Flip step, please refer to Figure 15 FIG. 1 is a perspective view of a flipping mechanism of a preferred embodiment of a contact lens demolding apparatus according to the present invention. The flipping mechanism places the lower mold PD of the plasticized mold P after inspection on a carrier plate 510. The flipping mechanism 500, which is located behind the mold separation mechanism 300, flips the carrier plate 510 180 degrees using a flipping drive unit 520. This flips the lower mold PD and the contact lens G retained after mold separation, placing the contact lens G side upward.

[0086] The steps S3 and S4 further include the following step S31: pre-clamping step. Figure 16 FIG. 1 is a perspective view of a pre-clamping mechanism of a preferred embodiment of the contact lens demolding apparatus of the present invention. The pre-clamping mechanism 600, through a pre-clamping jaw module 610, applies at least one lateral pressure to the lower mold PD of the plasticizing mold P, thereby creating a micro-gap between the contact lens G and the lower mold PD. This effectively improves the integrity and success rate of the finished lens after subsequent processing. The pre-clamping jaw module 610 has substantially the same structure as the lower clamping jaw 302, and therefore will not be further described here.

[0087] Step 4 S4: Lens ejection step, through the ejection mechanism 100 arranged behind the flip mechanism 500, the lower mold PD is squeezed by the ejector module 20 to separate the contact lens G from the lower mold PD; in the actual implementation of the present invention, the clamping claw module 10 of the ejection mechanism 100 is able to clamp and fix the lower mold PD of the plasticizing mold P, and the outer ejector 22 of the ejector module 20 presses the outer ring of the lower mold PD of the plasticizing mold P; then, the inner ejector 21 presses the center of the lower mold PD of the plasticizing mold P, and then, in a staggered lifting manner, gradually creates a gap between the contact lens G in the plasticizing mold P and completely peels it off, which can effectively reduce the rate of fragmentation during peeling.

[0088] Step 5 S5: Robotic arm takes the lens, please refer to Figure 17 The figure shows a schematic diagram of the lens removal operation of a preferred embodiment of the contact lens demolding device of the present invention. The contact lens demolding device 1000 utilizes the robotic lens removal mechanism 700, located behind the ejection mechanism 100, to remove the contact lens G from the lower mold PD via the suction nozzle 710 and place it on a glass carrier. The robotic arm of the robotic lens removal mechanism 700 effectively drives the suction nozzle gripper to remove the contact lens G to the glass carrier of the automated optical inspection station. The negative pressure air from the suction nozzle 710 of the suction nozzle gripper draws the contact lens G to the drop point through the pores in the outer ring of the suction nozzle 710. Positive pressure air then blows the contact lens G through the central channel, thereby preventing the lens from shifting or misaligning due to air flow.

[0089] Step 6 S6: Automatic optical lens inspection, in which the quality of the contact lenses G is inspected at at least one inspection station; and Step 7 S7: Sorting and sorting the inspected contact lenses G for discharge. This allows the contact lens demolding device 1000 to effectively inspect the quality of the contact lenses G at the inspection stations and achieve an automatic stripping method, effectively improving the success rate of lens removal.

[0090] Also, please refer to Figure 10 and Figure 11 The figure shows a schematic diagram and a flow chart of a second preferred embodiment of the contact lens demoulding device of the present invention. In another embodiment of the present invention, the contact lens demoulding device is a dry contact lens demoulding device, which is further provided with a residual material detection mechanism 400. The residual material detection mechanism 400 is arranged between the ejection mechanism 100 and the flipping mechanism 500, and is used to detect residual material on the lower mold PD and the contact lens G. A pre-elevation mechanism 800 is also provided. The pre-elevation mechanism 800 is arranged between the feeding mechanism 200 and the mold separation mechanism 300, and is clamped and fixed to the lower mold PD by a pre-elevation clamping module 810. The lower mold PD is then pressed down by at least one pre-elevation rod 820 provided at one end of the pre-elevation clamping module 810, so that a micro gap is generated between the upper mold PU and the lower mold PD. In addition, the present invention further provides an operating method of the contact lens demoulding device, which is applicable to the contact lens demoulding device as described above (i.e., dry contact lens demoulding device), and comprises at least the following steps:

[0091] Step 1 S1: feeding step, through the feeding mechanism 200, provide multiple plasticizing molds P for feeding through the material pipe, and adjust the amount of single feeding according to user needs. Among them, the following step S11 is included between step 1 S1 and step 2 S2: pre-top mold separation step, please refer to Figures 18 and 19 As shown in the figure, it is a three-dimensional diagram of the pre-elevating mechanism of the second preferred embodiment of the contact lens demolding device of the present invention and a schematic diagram of the operation of the pre-elevating mechanism, wherein the contact lens demolding device 1000 is further provided with a pre-elevating mechanism 800, which is clamped and fixed to the lower mold PD by a pre-elevating clamping jaw module 810, and then the lower mold PD is pressed down by at least one pre-elevating rod 820 provided at one end of the pre-elevating clamping jaw module 810, so that a micro gap is generated between the upper mold PU and the lower mold PD.

[0092] Step 2 S2: Plasticizing mold splitting step, please refer to Figures 20 to 21 1 and 2, which are three-dimensional diagrams of the mold separation mechanism and the three-dimensional diagram of the mold separation mechanism of the second preferred embodiment of the contact lens demolding equipment of the present invention, respectively. The mold separation mechanism 300 is arranged after the feeding mechanism 200 to separate the upper mold PU and the lower mold PD of the plasticizing mold P; in detail, the upper clamping jaw 301 of the mold separation mechanism 300 clamps the lower mold PD of the fixed plasticizing mold P, and the lower clamping jaw 302 of the mold separation mechanism 300 clamps the upper mold PU of the fixed plasticizing mold P, and the lower clamping jaw 302 applies lateral pressure to slightly deform the upper mold PU and then pulls it downward to separate the upper mold PU and the lower mold PD of the plasticizing mold P.

[0093] Step 3 S3: Flip step, please refer to Figure 15FIG. 1 is a perspective view of a flipping mechanism of a preferred embodiment of the contact lens demolding apparatus according to the present invention. The flipping mechanism 500 is disposed behind the mold-parting mechanism 300 and is used to flip the lower mold PD and the contact lens G retained after mold parting. Specifically, the lower mold PD and the contact lens G after mold parting are placed on a carrier 510. The flipping mechanism 500, disposed behind the mold-parting mechanism 300, flips the carrier 510 180 degrees using a flipping drive unit 520, so that the contact lens G is positioned upward. The process further includes the following step S32 after step 3 S3 and before step 4 S4: a residual material detection step, in which the lower mold PD and the contact lens G are inspected for residual material by a residual material detection mechanism 400, thereby detecting the quality of the contact lens within the lower mold of the plasticizing mold. After step S32 and before step S4, the following step S33 is further included: a clamping and pressing step, in which the lower mold PD is clamped laterally by the clamping claw module 10 of the top sheet mechanism 100, and the outer ring fixed to the lower mold PD is pressed downward by a pressing module 30, which can effectively press and position the plasticizing mold P, thereby preventing the plasticizing mold from shifting and causing defects during lens peeling, or preventing lens peeling from becoming difficult due to adhesion due to lens characteristics.

[0094] Step 4 S4: The lens ejection step, through the ejection mechanism 100 disposed behind the flip mechanism 500, uses the ejector module 20 to squeeze the lower mold PD to separate the contact lens G from the lower mold PD. This is mainly done by gradually pressing the spherical area of ​​the lower mold PD of the plasticizing mold P in a progressive lifting manner, so that a micro gap is generated between the contact lens G and the plasticizing mold P in a tightly fitted state, until the lower mold PD of the plasticizing mold P and the contact lens G are completely separated, which can effectively reduce the rate of fragmentation during separation.

[0095] Step 5 S5: The robotic arm removes the lens. The robotic arm removes the lens G from the lower mold PD using the suction nozzle 710 and places it on a glass carrier. The robotic arm of the robotic arm removes the lens 700, effectively driving the suction nozzle gripper to remove the lens G to the glass carrier of the automated optical inspection station. Negative pressure air from the suction nozzle 710 draws the lens G to the drop point through the outer pores of the nozzle 710. Positive pressure air then blows the lens G through the central channel, effectively preventing the lens from shifting or misaligning due to air flow.

[0096] Step 6 S6: Automatic optical lens inspection, in which the quality of the contact lenses G is inspected at at least one inspection station; and Step 7 S7: Sorting and sorting the inspected contact lenses G for discharge. This allows the contact lens demolding device 1000 to effectively inspect the quality of the contact lenses G at the inspection stations and achieve an automatic stripping method, effectively improving the success rate of lens removal.

[0097] As can be seen from the above implementation description, compared with the existing technologies and products, the present invention has the following advantages:

[0098] 1. The present invention's ejector mechanism utilizes the design of inner and outer ejector rods to effectively separate the lens from the plasticizing mold, thereby increasing the success rate of lens removal.

[0099] 2. The ejector module of the present invention gradually creates gaps in the contact lens of the plasticizing mold and completely peels off the contact lens through staggered lifting, progressive lifting or synchronous lifting, which can effectively reduce the rate of fragmentation during peeling.

Claims

1. A top sheet mechanism, characterized in that: Arranged in a contact lens demoulding device (1000), the top sheet mechanism (100) comprises at least: A clamping jaw module (10) comprises at least a first module block (11) and a second module block (12), wherein a plurality of accommodating grooves (13) are formed between the first module block (11) and the second module block (12); A push rod module (20) includes a plurality of inner push rods (21) and a plurality of outer push rods (22) correspondingly surrounding the inner push rods (21), wherein the plurality of inner push rods (21) and the plurality of outer push rods (22) are correspondingly arranged below the accommodating groove (13); The other end of the plurality of outer push rods (22) of the push rod module (20) relative to the receiving groove (13) is abutted against an outer push rod linkage block (221), and one side of the outer push rod linkage block (221) is further provided with an outer push rod driving unit (222); and the other end of the plurality of inner push rods (21) of the push rod module (20) relative to the receiving groove (13) is abutted against an inner push rod linkage block (211), and one side of the inner push rod linkage block (211) is further provided with an inner push rod driving unit (212), wherein the inner push rod driving unit (212) is arranged in parallel with the outer push rod driving unit (222).

2. The top sheet mechanism according to claim 1, wherein: A pressing module (30) is further provided above the clamping module (10), and the pressing module (30) includes at least one pressing piece (31), and a plurality of slots (311) are provided above the pressing piece (31), and the pressing piece (31) is electrically connected to a pressing drive unit (32), so that the plurality of slots (311) are correspondingly provided on the plurality of receiving grooves (13) of the clamping module (10), and is driven downward by the pressing drive unit (32), and the pressing piece (31) is driven downward to press and contact the clamping module (10).

3. The top sheet mechanism according to claim 1 or 2, wherein: It further comprises a bracket assembly (24), and at least one track module (25) is provided above the bracket assembly (24) for allowing the top rod module (20) to move laterally.

4. The top sheet mechanism according to claim 1 or 2, wherein: The first module block (11) of the clamping jaw module (10) is electrically connected to a first opening and closing drive unit (111); and the second module block (12) is electrically connected to a second opening and closing drive unit (121).

5. The top sheet mechanism according to claim 1 or 2, characterized in that: The top end of the outer push rod (22) protrudes from the top end of the inner push rod (21).

6. The top sheet mechanism according to claim 5, wherein: The outer push rod (22) and the inner push rod (21) are lifted synchronously.

7. The top sheet mechanism according to claim 5, wherein: The outer push rod (22) and the inner push rod (21) are lifted alternately.

8. The top sheet mechanism according to claim 1 or 2, wherein: The top end of the outer push rod (22) is aligned with the top end of the inner push rod (21).

9. The top sheet mechanism according to claim 8, wherein: The outer push rod (22) and the inner push rod (21) are lifted synchronously.

10. The top sheet structure according to claim 8, wherein: The outer push rod (22) and the inner push rod (21) are lifted alternately.

11. A contact lens demoulding device, characterized in that: At least: A feeding mechanism (200) is provided with a plurality of plasticizing molds (P), wherein the plasticizing mold (P) comprises an upper mold (PU) and a lower mold (PD) correspondingly arranged on one side of the upper mold (PU), wherein a contact lens (G) is arranged between the upper mold (PU) and the lower mold (PD); a mold splitting mechanism (300) disposed behind the feeding mechanism (200) and used for splitting the upper mold (PU) and the lower mold (PD) of the plasticizing mold (P); a flipping mechanism (500) disposed behind the mold splitting mechanism (300) for flipping the lower mold (PD) and the contact lens (G) retained after mold splitting; A top sheet mechanism (100) according to any one of claims 1 to 10, arranged behind the flip mechanism (500), and configured to separate the contact lens (G) from the bottom mold (PD) by squeezing the bottom mold (PD) through a push rod module (20); A robot sheet-taking mechanism (700) is arranged behind the top sheet mechanism (100) and is provided with a suction nozzle (710) for taking the contact lens (G) out of the lower mold (PD) and placing it on a glass carrier.

12. The contact lens demoulding device according to claim 11, wherein A residual material detection mechanism (400) is further provided. The residual material detection mechanism (400) is provided between the mold splitting mechanism (300) and the flipping mechanism (500) and is used to detect residual material on the lower mold (PD) and the contact lens (G).

13. The contact lens demoulding device according to claim 12, wherein: A pre-clamping mechanism (600) is further provided. The pre-clamping mechanism (600) is provided between the top sheet mechanism (100) and the flip mechanism (500). A pre-clamping jaw module (610) applies at least one lateral pressure to the lower mold (PD) of the plasticizing mold (P), thereby generating a micro gap between the contact lens (G) and the lower mold (PD).

14. The contact lens demoulding device according to claim 11, wherein: A residual material detection mechanism (400) is further provided. The residual material detection mechanism (400) is provided between the top plate mechanism (100) and the flip mechanism (500) and is used to detect residual material on the lower mold (PD) and the contact lens (G).

15. The contact lens demolding device as described in claim 14 is further provided with a pre-elevating mechanism (800), which is arranged between the feeding mechanism (200) and the demolding mechanism (300), and is clamped and fixed to the lower mold (PD) by a pre-elevating clamping claw module (810), and then the lower mold (PD) is pressed down by at least one pre-elevating rod (820) provided at one end of the pre-elevating clamping claw module (810), so that a micro gap is generated between the upper mold (PU) and the lower mold (PD).

16. A method for operating a contact lens demoulding device, characterized in that: The contact lens demoulding device (1000) according to claim 11 comprises at least the following steps: Step 1 (S1): a feeding step, providing a plurality of the plasticizing molds (P) through the feeding mechanism (200); Step 2 (S2): a plasticizing mold splitting step, wherein the splitting is achieved by the splitting mechanism (300), the splitting mechanism (300) being arranged behind the feeding mechanism (200) and being used to split the upper mold (PU) and the lower mold (PD) of the plasticizing mold (P); Step three (S3): a flipping step, wherein the flipping mechanism (500) is arranged behind the mold splitting mechanism (300) to flip the lower mold (PD) and the contact lens (G) retained after mold splitting; Step 4 (S4): a lens ejection step, wherein the top plate mechanism (100) disposed behind the flip mechanism (500) squeezes the lower mold (PD) by means of the ejector module (20), thereby separating the contact lens (G) from the lower mold (PD); Step five (S5): a step of taking a lens by a robotic arm, wherein the robotic arm taking mechanism (700) disposed behind the top plate mechanism (100) and the nozzle (710) are used to take the contact lens (G) out of the lower mold (PD) and place it on a glass carrier; Step six (S6): an automatic optical lens inspection step, wherein the quality of the contact lens (G) is inspected by at least one inspection station; as well as Step seven (S7): sorting and discharging step, the contact lenses (G) after inspection are sorted and discharged.

17. The operating method of the contact lens demoulding device according to claim 16, wherein: The method further includes the following step (S21) after step 2 (S2) and before step 3 (S3): a residual material detection step, in which a residual material detection mechanism (400) is used to detect the residual material of the lower mold (PD) and the contact lens (G).

18. The operating method of the contact lens demoulding device according to claim 17, wherein: The process further includes the following step (S31) between step three (S3) and step four (S4): a pre-clamping step, wherein a pre-clamping mechanism (600) is used to apply at least one lateral pressure to the lower mold (PD) of the plasticizing mold (P) through a pre-clamping jaw module (610), so as to generate a micro gap between the contact lens (G) and the lower mold (PD).

19. The operating method of the contact lens demoulding device according to claim 16, wherein: The following step (S11) is further included between step one (S1) and step two (S2): a pre-pushing mold splitting step, in which a pre-pushing mechanism (800) is used to clamp and fix the pre-pushing clamping module (810) to the lower mold (PD), and then at least one pre-pushing rod (820) provided at one end of the pre-pushing clamping module (810) is used to press down the lower mold (PD), so that a micro gap is generated between the upper mold (PU) and the lower mold (PD).

20. The operating method of the contact lens demoulding device according to claim 19, wherein: After step three (S3) and before step four (S4), the following step S32 is further included: a residual material detection step, in which the lower mold (PD) and the contact lens (G) are inspected for residual material through a residual material detection mechanism (400).

21. The operating method of the contact lens demolding equipment as described in claim 20, wherein after step S32 and before step four (S4), the following step (S33) is further included: a clamping and pressing step, wherein the lower mold (PD) is clamped laterally by the clamping module (10) of the top plate mechanism (100), and the outer ring fixed to the lower mold (PD) is pressed down by a pressing module (30).

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