A machine for shelling and slicing in one

By designing an integrated shell and sheet removal machine, using a combination of pneumatic expansion mechanism, hydraulic clamps and vacuum adsorption mechanism, the precise positioning and separation of contact lens silicone molds is achieved, solving the problem of lens damage caused by existing devices, and improving the degree of automation and production efficiency.

CN116872404BActive Publication Date: 2025-07-08JILIN REALCON CONTACT LENS CO LTD
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Patent Information

Application Number
CN202310879352.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-18
Publication Date
2025-07-08
Estimated Expiration
2043-07-18

AI Technical Summary

Technical Problem

Existing contact lens decapsulation and removal devices are prone to damage to the lens, and the degree of automation is insufficient, affecting production efficiency.

Method used

A shell-removing and sheet removal integrated machine is designed, including a frame body, guide rail, vibration loading device, fork-feeding and alignment device, table clamping device, transfer device, shell-removing device, sheet removal device and stacking device. The precise positioning and separation of the silicone mold is achieved through the combination of pneumatic expansion mechanism, hydraulic clamp, vacuum adsorption mechanism, etc.

Benefits of technology

It improves the automation level of contact lenses, reduces the risk of lens damage, and improves production efficiency and tablet quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the technical field of shelling and lens-taking of silicone molds for contact lenses, and specifically relates to an integrated shelling and lens-taking machine, which is used in cooperation with a silicone mold for contact lenses and includes: a frame body, a guiding track, a vibrating feeding device, a fork feeding and alignment device, a table clamping device, a transfer device, a shelling device, a lens-taking device, and a stacking device. Both ends of the guiding track are open, and its side wall is fixedly arranged with the frame body. The vibrating feeding device is a vibrating feeding tray, which is arranged on one side of the frame body and is connected to one end of the guiding track in a communicating manner for the feeding operation of the silicone mold. The transfer device is arranged along the guiding direction of the guiding track and is used for transporting the silicone mold to the transfer device and the shelling device for shelling and lens-taking operations. The integrated shelling and lens-taking machine includes at least one transfer device. When the number of transfer devices is greater than one, the shelling device is detachably and fixedly connected to the silicone mold, thereby realizing the position switching of the silicone mold on different transfer devices.
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Description

Technical Field

[0001] The present invention relates to the technical field of the shell removal and lens picking of silicone molds for contact lenses, and specifically relates to an integrated machine for shell removal and lens picking. Background Art

[0002] In the past, for contact lens shell removal and lens picking devices, generally, heating and ultrasonic methods were used to separate the contact lens from the mold, and the lens was taken out of the mold by vibration and other methods to achieve the integration of shell removal and lens picking. However, this method will affect the contact lens itself and is likely to cause damage to the contact lens.

[0003] Chinese Patent with Document Number CN215791136U discloses a fully automated contact lens detachment device, which realizes the full automation of contact lens detachment. On the one hand, it improves the qualified rate of lens detachment, and on the other hand, it effectively prevents the lens from contacting powder and causing powder to adhere to the lens. However, its shell removal operation is mainly achieved through a heating process, which will cause disturbance to the contact lens.

[0004] Chinese Patent with Document Number CN103465410B discloses an ultrasonic demolding device and its method for manufacturing contact lenses. The present invention has the advantages of extremely short demolding time, improved production speed, and the contact lens being in a dry state after demolding, which improves the accuracy of subsequent detection processes. However, its shell removal operation is mainly carried out by ultrasonic vibration, which is likely to cause damage to the contact lens.

[0005] Therefore, how to design an integrated machine for shell removal and lens picking to reduce the possibility of contact lens damage while improving the degree of automation and production efficiency has become a technical problem to be solved. Summary of the Invention

[0006] The purpose of the present invention is to provide an integrated machine for shell removal and lens picking to solve the above problems.

[0007] To achieve the above objectives, the following technical solutions are provided:

[0008] A shelling and slicing integrated machine is used in cooperation with a silicone contact lens mold. The silicone mold includes an alignment shell, a lens, and a housing. The shelling and slicing integrated machine includes: a frame body, a guiding track, a vibrating feeding device, a fork feeding and aligning device, a table clamping device, a transfer device, a shelling device, a slicing device, and a stacking device. The two ends of the guiding track are open, and its side wall is fixedly arranged with the frame body for conveying the silicone contact lens mold. The vibrating feeding device is a vibrating feeding tray, which is arranged on one side of the frame body and communicated with one end of the guiding track for feeding the silicone mold. The transfer device is arranged along the guiding direction of the guiding track for transporting the silicone mold to the transfer device and the shelling device for shelling and slicing operations. The shelling and slicing integrated machine includes at least one transfer device. When the number of transfer devices is greater than one, the shelling device is detachably and fixedly connected to the silicone mold, so as to realize the position switching of the silicone mold on different transfer devices.

[0009] Preferably, both the lens and the housing of the silicone mold are arc-shaped structures. The lens is arranged inside the housing and their arc surfaces face the same direction. One end of the opening of the lens is tightly attached and sealed to the housing, so that the housing can limit the movement of the lens. The alignment shell includes a first protrusion extending along the opening end of the housing and a second protrusion perpendicular to the axial direction of the first protrusion. The guiding track is a cuboid structure with symmetric grooves along its length direction in the middle. The silicone mold is placed on both ends of the grooved position of the guiding track through the second protrusion and can move along the grooved direction.

[0010] Preferably, the fork feeding and aligning device is arranged close to the guiding track. The fork feeding and aligning device includes a first cylinder and a fork body. The fork body consists of fixed teeth at both ends and intermediate teeth in the middle, and includes at least two intermediate teeth. The lengths of the intermediate teeth are sequentially increased in one direction for separating each silicone mold one by one and fixing them at different positions on the fork body.

[0011] Preferably, the end of the intermediate tooth close to the guiding track is provided with a rounded corner, and its two side walls extend close to each other to form a rounded corner conical structure. The axis of the rounded corner cone is offset by a certain angle along the axis of the intermediate tooth in the direction of the increasing length of the intermediate tooth, and thus deviates from the moving direction of the fork body. The first cylinder can drive the fork body to move and apply a force to the first protrusion on the silicone mold whose direction is not perpendicular to the grooved direction of the guiding track.

[0012] Preferably, the transfer device includes a second cylinder and a transfer tray. Cylindrical protrusions matching the silicone mold are arranged on the transfer tray at a certain interval, and the intervals of the cylindrical protrusions are the same as the intervals of the silicone molds on the fork body. The cylindrical protrusions are vertically provided with through openings on their side walls for the shelling device to separate the silicone mold from the transfer device.

[0013] Preferably, the table clamping device includes a hydraulic clamp for clamping off the first protrusion of the silica gel mold. The hydraulic clamp is matched with the guiding track. During the process of the hydraulic clamp clamping off the first protrusion, negative deformation occurs at both ends of the silica gel mold clamped by the hydraulic clamp, and positive deformation occurs at the other two ends perpendicular thereto along the grooving direction of the guiding track, thereby separating the lens from the housing.

[0014] Preferably, the shell removing device includes a pneumatic expanding mechanism which can be arranged to expand along the opening direction of the cylindrical protrusion on the transfer device. One end of the pneumatic expanding mechanism close to the transfer device is a threaded structure for taking out the residual material in the silica gel mold.

[0015] Preferably, the sheet taking device includes a vacuum adsorption mechanism and a pushing head. The vacuum adsorption mechanism is used for vacuum absorbing the lens in the silica gel mold. One end of the vacuum adsorption mechanism close to the silica gel mold is arranged in an arc shape, and the arc direction thereof is opposite to the arc orientation of the lens. When the vacuum adsorption mechanism moves towards the lens and abuts against it, a closed space is formed between them. The vacuum adsorption mechanism can continue to move towards the lens, and then drive the middle parts of the two opposite arcs to move closer to each other without contact, so as to discharge the gas in the closed space to form vacuum adsorption. The pushing head is used for pushing the housing of the silica gel mold to be recessed inward to separate it from the lens.

[0016] Preferably, the stacking device includes a tray and two tray mechanisms arranged perpendicular to each other. The two tray mechanisms are respectively used for stacking empty trays and trays full of lenses, and a tray guide rail for conveying the trays is arranged between the two tray mechanisms. The tray mechanism includes a third air cylinder, a one-way stop block and a wall support column for supporting the tray. When the third air cylinder acts, its pushing end can be arranged to fit and / or not fit with the outer edge of the tray. The third air cylinder can drive the tray to move up and / or down along the tray mechanism according to its fitting relationship with the outer edge of the tray.

[0017] Preferably, the vacuum adsorption mechanism can move towards the tray to convey the lens, and can also replenish gas into the closed space to release the vacuum adsorption, so that the lens falls into the tray.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. When there are multiple transfer devices in the present invention, after the previous transfer device sends the silica gel mold to the corresponding shell removing device, the pneumatic expanding mechanism at the shell removing device acts to expand and press the silica gel mold. At this time, the previous transfer device can return to its original position to perform the next round of material transfer operation, and the subsequent transfer device can correspondingly move to the lower part of the pneumatic expanding mechanism to prepare for transporting materials. At this time, the pneumatic expanding mechanism performs a rising action to take away the residual material in the silica gel mold, realizing the coordinated cooperation of multiple mechanisms and improving the degree of automation;

[0020] 2. The first protrusion on the silicone mold of the present invention is connected to the outer shell and is not an integrally formed structure. When the first protrusion is clamped and stressed by a hydraulic pliers, the first protrusion receives a pair of shear forces with the same magnitude and opposite directions. Since the inside of the first protrusion is a cavity, the shear forces on the two cross-sections are respectively manifested as separate bending actions. The bending action received by the first protrusion will also be transmitted to the outer shell, thereby causing a certain degree of deformation of the outer shell. At this time, the corresponding relationship between the outer shell and the lens is damaged, manifested as a certain small gap is generated between the two, resulting in the destruction of the relatively sealed setting. For the setting with the same arc angle, it is also manifested as air entering the sealed space, destroying its internal airtightness, eliminating the vacuum effect. Moreover, the first protrusion and the outer shell are not integrally formed, and the connection point between the two is the weakest position under stress. Before the outer shell generates excessive strain, the first protrusion breaks off flush along the connection point between the two. Therefore, no excessive gap will be generated between the outer shell and the lens, and the lens will not be damaged due to the deformation of the outer shell; the second protrusion is a structure for moving along the guiding track. The silicone mold is erected on the guiding track through the second protrusion and then driven by the transfer device to move, improving the processing efficiency of the silicone mold and the quality of taking lenses of contact lenses;

[0021] 3. After the silicone mold corresponding to the first position in the sorting arrives, the subsequent silicone molds are pushed by it. When the corresponding positions of the previous silicone mold and the fork body are aligned and its movement is restricted by the teeth on the fork body at both ends, the subsequent silicone mold does not contact the fork body, and its position is pushed by the previous silicone mold to the corresponding position of the next middle tooth, on the side of the rounded cone. At this time, the fork body continues to move. Due to the offset of its orientation, the driving force of the rounded cone on the silicone mold will cause the silicone mold to move towards the corresponding position on the fork body. Then, after each silicone mold is positioned in turn, it is stuck in the corresponding position on the fork body, realizing the precise positioning and separation of the silicone molds;

[0022] 4. One end of the vacuum adsorption mechanism of the present invention close to the silicone mold is arranged in an arc shape, and the arc direction thereof is opposite to the arc orientation of the lens. When the vacuum adsorption mechanism moves towards the lens and abuts against it, a closed space is formed between the two. The vacuum adsorption mechanism can continue to move towards the lens, and then can drive the middle parts of the two opposite arcs to move closer to each other without contacting each other, for exhausting the gas in the closed space to form a vacuum adsorption. The ejector head is used to push the outer shell of the silicone mold to sink inward, so that it is separated from the lens;

[0023] 5. By switching the fitting relationship between the third cylinder and the outer edge of the tray, the two tray mechanisms for loading the trays and stacking can be switched respectively, which is convenient for adjustment in different processes. When they are fitted, the driving action of the third cylinder causes the upper tray on the one-way stop block in the tray mechanism to fall, that is, the pushing end of the cylinder blocks the flipping of the one-way stop block, and the tray follows the third cylinder to fall. When they are not fitted, there is a certain gap between the third cylinder and the tray. When the one-way stop block is located in the gap between them, it flips and plays a supporting role for the tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present invention;

[0025] Figure 2 is Figure 1 an enlarged schematic diagram of the structure at a in

[0026] Figure 3 is a three-dimensional schematic diagram of a partial structure of the present invention;

[0027] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at b in

[0028] Figure 5 is Figure 3 an enlarged schematic diagram of the structure at c in

[0029] Figure 6 is a schematic diagram of the cooperation relationship between the transfer device and the ejector head;

[0030] Figure 7 is a schematic structural diagram of the tray mechanism;

[0031] Figure 8 is a schematic plan view of a partial structure of the present invention Figure 1 ;

[0032] Figure 9 is a schematic plan view of a partial structure of the present invention Figure 2 ;

[0033] Figure 10 is a schematic plan view of a partial structure of the present invention Figure 3 ;

[0034] Figure 11 is a schematic structural diagram of a silicone mold for contact lenses;

[0035] In the figure: 10 - frame, 101 - guiding track, 201 - lens, 202 - housing, 203 - first protrusion, 204 - second protrusion, 30 - vibrating feeding tray, 40 - fork feeding and alignment device, 401 - first cylinder, 402 - fork body, 403 - fixed tooth, 404 - intermediate tooth, 50 - hydraulic clamp, 60 - transfer device, 601 - second cylinder, 602 - transfer tray, 603 - cylindrical protrusion, 70 - pneumatic expansion mechanism, 801 - vacuum adsorption mechanism, 802 - ejecting head, 90 - stacking device, 901 - tray mechanism, 902 - tray guide rail, 903 - third cylinder, 904 - one-way stop block, 905 - buttress column. Detailed implementation mode

[0036] Next, in combination with the embodiments of the present invention, the technical solutions in the structural schematic diagrams of the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figure 1-11 shown, a shelling and sheet-taking integrated machine is used in cooperation with a silicone mold for contact lenses. The silicone mold includes an alignment shell, a lens 201 and a housing 202. The shelling and sheet-taking integrated machine includes: a frame 10, a guiding track 101, a vibrating feeding device, a fork feeding and alignment device 40, a table clamping device, a transfer device 60, a shelling device, a sheet-taking device and a stacking device 90. Both ends of the guiding track 101 are open, and its side wall is fixedly arranged with the frame 10 for conveying the silicone mold for contact lenses. The vibrating feeding device is a vibrating feeding tray 30. The vibrating feeding tray 30 is arranged on one side of the frame 10 and is communicated with one end of the guiding track 101 for the feeding operation of the silicone mold. The transfer device 60 is arranged along the guidance of the guiding track 101 for transporting the silicone mold to the transfer device 60 and the shelling device for shelling and sheet-taking operations. The shelling and sheet-taking integrated machine includes at least one transfer device 60. When the number of transfer devices 60 is greater than one, the shelling device is detachably fixedly connected to the silicone mold, so as to realize the position switching of the silicone mold on different transfer devices 60;

[0038] In this embodiment, when there are multiple transfer devices 60, after the previous transfer device 60 sends the silicone mold to the corresponding shelling device, the pneumatic expansion mechanism 70 at the shelling device acts to expand and press the silicone mold. At this time, the previous transfer device 60 can return to its original position for the next round of material transfer operation, and the subsequent transfer device 60 can correspondingly move to the lower part of the pneumatic expansion mechanism 70 to prepare for transporting materials. At this time, the pneumatic expansion mechanism 70 performs a rising action to take away the residual materials in the silicone mold;

[0039] In some embodiments, both the lens 201 and the housing 202 of the silicone mold are arc-shaped structures. The lens 201 is disposed within the housing 202 and the arc surfaces of both face the same direction. One end of the opening of the lens 201 is hermetically sealed and attached to the housing 202. Thus, the housing 202 can restrict the movement of the lens 201. The alignment shell includes a first protrusion 203 extending along the opening end of the housing 202 and a second protrusion 204 extending in a direction perpendicular to the axial direction of the first protrusion 203. The guiding track 101 is a cuboid structure with symmetrically grooved openings along its length in the middle. The silicone mold is mounted on both ends of the grooved position of the guiding track 101 through the second protrusion 204 and can move along the grooved direction.

[0040] In this embodiment, the arc angles of the lens 201 and the housing 202 can be set to be the same. At this time, the air in the sealed space formed between the two due to relative sealing is squeezed out by the mating lens 201 and housing 202, generating a certain vacuum effect inside the sealed space, which further promotes the restriction of the movement of the lens 201 by the housing 202, thereby ensuring the fastening of the lens 201. The arc angles of the lens 201 and the housing 202 can also be set differently. At this time, the main position for fastening the lens 201 is the sealed portion between the lens 201 and the housing 202. By the abutment of the housing 202 and the lens 201, the lens 201 is prevented from falling off. The first protrusion 203 is a protrusion extending along the opening end of the housing 202. The first protrusion 203 is connected to the housing 202 and is not an integrally formed structure. When the first protrusion 203 is clamped by the hydraulic pliers 50 and subjected to force, the first protrusion 203 receives a pair of shearing forces with the same magnitude and opposite directions. Since the interior of the first protrusion 203 is a cavity, the shearing forces on the two cross-sections are respectively manifested as separate bending actions. The bending action received by the first protrusion 203 is also transmitted to the housing 202, thereby causing a certain degree of deformation of the housing 202. At this time, the corresponding relationship between the housing 202 and the lens 201 is damaged, manifested as the generation of a certain small gap between the two, resulting in the destruction of the relative sealing setting. For the setting with the same arc angle, it is also manifested as the entry of air into the sealed space, destroying its internal airtightness and eliminating the vacuum effect. Moreover, since the first protrusion 203 and the housing 202 are not integrally formed, the connection point between the two is the weakest position under force. Before the housing 202 generates excessive strain, the first protrusion 203 breaks off flush along the connection point between the two. Therefore, no excessive gap will be generated between the housing 202 and the lens 201, and the lens 201 will not be damaged due to the deformation of the housing 202. The second protrusion 204 is a structure for moving along the guiding track 101. The silicone mold is mounted on the guiding track 101 through the second protrusion 204 and is thus driven by the transfer device 60 to move.

[0041] In some embodiments, the fork feeding and alignment device 40 is disposed close to the guiding track 101. The fork feeding and alignment device 40 includes a first cylinder 401 and a fork body 402. The fork body 402 is composed of fixing teeth 403 at both ends and intermediate teeth 404, and includes at least two intermediate teeth 404. The lengths of the intermediate teeth 404 are sequentially increased along one direction, and are used to separately separate each silica gel mold and fix them at different positions on the fork body 402;

[0042] In this embodiment, the silica gel molds are sequentially and conformally conveyed to the guiding track 101 by the vibrating feeding tray 30. The fork feeding and alignment device 40 can judge the position of the silica gel mold through one of a displacement sensor and a photoelectric sensor. When it is detected that the silica gel mold in the first sorted position is conveyed to the frontmost position of the fork body 402, the vibrating feeding tray 30 stops feeding. At this time, the subsequent silica gel molds stop moving and no longer push the front silica gel mold to move forward. At this time, the longest intermediate tooth 404 of the fork feeding and alignment device 40 separates the silica gel molds in the first sorted position and the second sorted position, so that they correspond to different positions on the fork body 402. While the silica gel mold in the second sorted position is pushed into alignment by the intermediate tooth 404, it also pushes the subsequent silica gel molds to move backward. Since the lengths of the intermediate teeth 404 are sequentially increased, the positions of the silica gel molds that have been aligned are fixed by the corresponding intermediate teeth 404 and will no longer be affected by the subsequent unaligned silica gel molds. Each intermediate tooth 404 sequentially performs the separation and alignment operation in a cycle to separately separate each silica gel mold;

[0043] In some embodiments, one end of the intermediate tooth 404 close to the guiding track 101 is provided with a rounded corner, and its two side walls extend close to each other to form a rounded corner conical structure. The axis of the rounded corner cone is offset by a certain angle along the axis of the intermediate tooth 404 in the direction of the increasing length of the intermediate tooth 404, and thus deviates from the moving direction of the fork body 402. The first cylinder 401 can drive the fork body 402 to move and apply a force to the first protrusion 203 on the silica gel mold whose direction is not perpendicular to the grooving direction of the guiding track 101;

[0044] In this embodiment, after the silica gel mold corresponding to the first sorted position arrives, the subsequent silica gel molds are pushed by it. When the front silica gel mold corresponds to the corresponding position in the fork body 402 and its movement is restricted by the teeth on the fork body 402 at both ends, the subsequent silica gel mold does not contact the fork body 402, and its position is pushed by the front silica gel mold to the corresponding position of the next intermediate tooth 404 and is located on one side of the rounded corner cone. At this time, the fork body 402 continues to move. Due to the bias of its orientation, the driving force of the rounded corner cone on the silica gel mold will cause the silica gel mold to move towards the corresponding position on the fork body 402. Thus, after each silica gel mold is sequentially positioned, it is stuck in the corresponding position on the fork body 402;

[0045] In some embodiments, the transfer device 60 includes a second cylinder 601 and a transfer tray 602. Cylindrical protrusions 603 matching the silicone mold are provided on the transfer tray 602 at a certain interval, and the intervals of the cylindrical protrusions are the same as those of the silicone mold on the fork body 402. The cylindrical protrusions 603 are provided with through openings perpendicular to their side walls for the shelling device to separate the silicone mold from the transfer device 60. On the one hand, the through openings of the cylindrical protrusions 603 can avoid generating a vacuum, which makes it difficult to take out the silicone mold. On the other hand, it is convenient for the pneumatic expansion mechanism 70 to perform the expansion operation to separate the silicone mold from the transfer device 60.

[0046] In some embodiments, the table clamping device includes a hydraulic clamp 50. The hydraulic clamp 50 is used to clamp off the first protrusion 203 of the silicone mold. The hydraulic clamp 50 cooperates with the guide rail 101. During the process of the hydraulic clamp 50 clamping off the first protrusion 203, negative deformation occurs at both ends of the silicone mold clamped by the hydraulic clamp 50, and positive deformation occurs at the other two ends perpendicular to it along the grooving direction of the guide rail 101, thereby separating the lens 201 from the outer shell 202.

[0047] In some embodiments, the shelling device includes a pneumatic expansion mechanism 70. The pneumatic expansion mechanism 70 can be arranged to expand along the opening direction of the cylindrical protrusion 603 on the transfer device 60. One end of the pneumatic expansion mechanism 70 close to the transfer device 60 is a threaded structure for taking out the residual material in the silicone mold.

[0048] In some embodiments, the sheet taking device includes a vacuum adsorption mechanism 801 and a top head 802. The vacuum adsorption mechanism 801 is used to vacuum adsorb the lens 201 in the silicone mold. One end of the vacuum adsorption mechanism 801 close to the silicone mold is arranged in an arc shape, and the arc direction is opposite to the arc direction of the lens 201. When the vacuum adsorption mechanism 801 moves towards the lens 201 and abuts against it, a closed space is formed between them. The vacuum adsorption mechanism 801 can continue to move towards the lens 201, and then drive the middle parts of the two opposite arcs to move closer to each other without contacting, so as to discharge the gas in the closed space to form vacuum adsorption. The top head 802 is used to push the outer shell 202 of the silicone mold to dent inward to separate it from the lens 201.

[0049] In some embodiments, the stacking device 90 includes a tray and two tray mechanisms 901 arranged perpendicularly to each other. The two tray mechanisms 901 are used to stack an empty tray and a tray loaded with lenses 201, respectively. A tray guide rail 902 for conveying the tray is provided between the two tray mechanisms 901. The tray mechanism 901 includes a third cylinder 903, a one-way stopper 904, and a buttress column 905 for supporting the tray. When the third cylinder 903 is in motion, its pushing end may be in contact with and / or not in contact with the outer edge of the tray. The third cylinder 903 may drive the tray to move along the tray mechanism 901 according to the contact relationship between the third cylinder 903 and the outer edge of the tray. Move upward and / or downward; by switching the fitting relationship between the third cylinder 903 and the outer edge of the pallet, the two pallet mechanisms 901 for loading and stacking can be switched, which is convenient for adjustment in different processes. When the two are fitted together, the driving effect of the third cylinder 903 prompts the pallet on the one-way stopper 904 set in the pallet mechanism 901 to fall, that is, the pushing end of the cylinder blocks the flipping of the one-way stopper 904, and the pallet falls with the third cylinder 903. When the two are not fitted together, a certain gap is set between the third cylinder 903 and the pallet, and the one-way stopper 904 flips when it is located in the gap between the two, thereby supporting the pallet;

[0050] In some embodiments, the vacuum adsorption mechanism 801 can move and transport the lens 201 to the tray, and can also add gas into the closed space to release the vacuum adsorption, thereby allowing the lens 201 to fall into the tray.

Claims

1. A shelling and slicing integrated machine, which is used in cooperation with a silicone mold for contact lenses. The silicone mold includes an alignment shell, a lens and a housing, and is characterized in that: The integrated shelling and slicing machine includes: a frame body, a guiding track, a vibrating feeding device, a fork feeding and aligning device, a table clamping device, a transfer device, a shelling device, a slicing device, and a stacking device. The two ends of the guiding track are open, and its side walls are fixedly arranged with the frame body, and are used for conveying the silicone molds of contact lenses. The vibrating feeding device is a vibrating feeding tray, which is arranged on one side of the frame body and is communicated with one end of the guiding track, and is used for the feeding operation of the silicone molds. The transfer device is arranged along the guiding direction of the guiding track and is used for transporting the silicone molds to the transfer device and the shelling device for shelling and slicing operations. The integrated shelling and slicing machine includes at least one transfer device. When the number of transfer devices is greater than one, the shelling device is detachably and fixedly connected to the silicone mold, so as to realize the position switching of the silicone mold on different transfer devices; Both the lens and the outer shell of the silicone mold are arc-shaped structures, and the arc angles of the lens and the outer shell are set to be the same. The lens is arranged inside the outer shell and the arc surfaces of the two face the same direction. One end of the opening of the lens is hermetically attached to the outer shell, so that the outer shell can limit the movement of the lens. The alignment shell includes a first protrusion extending along the opening end of the outer shell and a second protrusion extending in a direction perpendicular to the axial direction of the first protrusion. The guiding track is a cuboid structure with symmetric grooves in the middle along its length direction. The silicone mold is supported on both ends of the grooved position of the guiding track through the second protrusion and can move along the grooving direction; The shelling device includes a pneumatic expansion mechanism, which can expand along the opening direction of the cylindrical protrusion on the transfer device. One end of the pneumatic expansion mechanism close to the transfer device is a threaded structure, which is used to take out the residual material in the silicone mold.

2. The integrated hulling and slicing machine according to claim 1, characterized in that: The fork feeding and aligning device is arranged close to the guiding track. The fork feeding and aligning device includes a first cylinder and a fork body. The fork body consists of fixed teeth at both ends and intermediate teeth in the middle, and includes at least two intermediate teeth. The lengths of the intermediate teeth are sequentially increased along one direction, and are used to separate each silicone mold successively and fix them in different positions on the fork body.

3. The integrated hulling and slicing machine according to claim 2, characterized in that: One end of the intermediate tooth close to the guiding track is provided with a rounded corner, and its two side walls extend close to each other to form a rounded corner conical structure. The axis of the rounded corner cone is offset by a certain angle along the axis of the intermediate tooth in the direction of the increase of the intermediate tooth, and thus deviates from the moving direction of the fork body. The first cylinder can drive the fork body to move and apply a force to the first protrusion on the silicone mold whose direction is not perpendicular to the grooving direction of the guiding track.

4. The shelling and slicing integrated machine according to claim 3, characterized in that: The transfer device includes a second cylinder and a transfer tray. The transfer tray is provided with cylindrical protrusions matching the silicone molds at certain intervals, and the intervals of the cylindrical protrusions are the same as the intervals of the silicone molds on the fork body. The cylindrical protrusions penetrate and open perpendicular to their side walls, and are used for the shelling device to separate the silicone mold from the transfer device.

5. The shelling and slicing integrated machine according to claim 4, wherein: The table clamp device includes a hydraulic clamp, which is used to clamp off the first protrusion of the silicone mold. The hydraulic clamp cooperates with the guide track. During the process of the hydraulic clamp clamping off the first protrusion, the two ends of the silicone mold clamped by the hydraulic clamp produce negative deformation, and the other two ends perpendicular to it produce positive deformation along the groove direction of the guide track, thereby separating the lens from the shell.

6. The integrated hulling and slicing machine according to claim 5, characterized in that: The film taking device includes a vacuum adsorption mechanism and an ejection head. The vacuum adsorption mechanism is used to vacuum absorb the lens in the silicone mold. The end of the vacuum adsorption mechanism close to the silicone mold is arranged in an arc shape, and the direction of its arc surface is opposite to the arc surface of the lens. When the vacuum adsorption mechanism moves toward the lens and abuts against it, the two form a closed space. The vacuum adsorption mechanism can continue to move toward the lens, and then drive the middle parts of the two oppositely arranged arc surfaces to move closer but not in contact, so as to discharge the gas in the closed space to form vacuum adsorption. The ejection head is used to push the outer shell of the silicone mold inward to separate it from the lens.

7. The dehulling and slicing integrated machine according to claim 6, wherein: The stacking device includes a tray and two tray mechanisms arranged perpendicular to each other, the two tray mechanisms are used to stack empty trays and trays full of lenses, respectively, and a tray guide rail for conveying trays is provided between the two tray mechanisms, the tray mechanism includes a third cylinder, a one-way stopper and a buttress column for supporting the tray, when the third cylinder is actuated, its pushing end can be in contact with and / or not in contact with the outer edge of the tray, and the third cylinder can drive the tray to move upward and / or downward along the tray mechanism according to the contact relationship between the third cylinder and the outer edge of the tray.

8. The integrated hulling and slicing machine according to claim 7, characterized in that: The vacuum adsorption mechanism can move and transport the lens to the tray, and can also add gas into the closed space to release the vacuum adsorption, thereby allowing the lens to fall into the tray.

Citation Information

Patent Citations

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    CN215791136U

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