Contact lens lens hydration extraction dish

Abstract

The utility model provides a kind of contact lens lens hydration extraction disc, including extraction disc plate, multiple equal-interval array distribution's extraction cell are equipped on extraction disc plate, there is concave part in the center of extraction cell, there is the recess of containing lens in concave part, upper support column is equipped with extraction rib on the upside of concave part, lower support column is equipped with support boss on the downside, there is retaining ring on the upper end surface of extraction cell, retaining ring is opened gap and forms retaining wall, concave part is equipped with the through extraction grid through-hole. Multiple extraction disc plates can be stacked, and the support boss can fix the lens. The extraction disc is used for contact lens hydration, improves bearing and water exchange efficiency, protects the lens, and meets the processing requirements.

Description

Technical Field

[0001] This utility model relates to the field of contact lens processing technology, specifically to a contact lens hydration extraction plate. Background Technology

[0002] Contact lenses are more popular with consumers than traditional eyeglasses due to their superior vision correction range, safety, and wearing comfort, and their application in the vision correction field continues to expand. Most existing contact lenses are made from hydrophilic synthetic polymers. To further improve wearing comfort, the molded lenses need to be immersed in a specific hydration solution. This allows for greater water absorption, increasing the lens's softness and removing impurities remaining from the curing process. This process requires a specialized carrier that combines container and hydration extraction functions; this carrier is called an extraction tray in the industry. The structural design of the extraction tray directly affects the uniformity and efficiency of lens hydration and the integrity of the lens.

[0003] Current contact lens hydration trays on the market have significant structural defects, making them unsuitable for efficient lens processing. On one hand, existing trays have limited lens capacity, and when multiple trays are stacked, the large gaps between them cause lenses to easily float out of the hydration grid due to buoyancy in the hydration solution, resulting in lens loss and increased production waste. On the other hand, the grid structure of the trays is poorly designed, leading to low efficiency in the exchange of hydration solution between the inside and outside of the grid. This prevents lenses from quickly and fully contacting the solution, prolonging the hydration process and reducing overall production efficiency. Furthermore, after hydration, lenses often stick to the bottom of the grid due to insufficient surface wettability, making them prone to scratching or deformation during removal, affecting lens quality and failing to meet the demands of high-volume, high-efficiency contact lens manufacturing. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a contact lens hydration tray that improves the carrying capacity and water exchange efficiency during contact lens hydration.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A contact lens hydration tray includes a tray plate; multiple hydration grid units are arranged on the tray plate; the multiple hydration grid units are arranged in an equally spaced array; a recess is provided at the center of each hydration grid unit; a groove for holding a contact lens is provided in the recess; the cross-sectional shape of the recess is hemispherical; an upper support column is fixedly provided on the upper side of the recess, and a lower support column is fixedly provided on the lower side; the axes of the upper support column, the lower support column and the recess are coincident; a retaining ring is fixedly provided on the upper end face of the hydration grid unit, and multiple notches are opened on the retaining ring, with a retaining wall between two adjacent notches; a hydration grid rib is fixedly provided on the upper side of the recess, and a support boss is fixedly provided on the lower side; a hydration grid through hole is provided on the recess, and the hydration grid through hole penetrates the recess from top to bottom.

[0007] Preferably, the retaining ring has multiple notches; the number of retaining walls corresponds to the number of notches; the retaining walls and notches are alternately arranged with the axis of the lower recess as the center.

[0008] Preferably, the quenching through holes are configured in multiple ways; the multiple quenching through holes are arranged in a circular array with the axis of the recessed portion as the center.

[0009] Preferably, there are multiple ribs; the multiple ribs are arranged in a circular array with the axis of the recess as the center; the ribs are arranged between two adjacent rib through holes.

[0010] Preferably, there are multiple support bosses; the multiple support bosses are arranged in a circular array with the axis of the recessed portion as the center; the support bosses are arranged between two adjacent through holes.

[0011] Preferably, a water collection trough is provided at the upper end of the upper support column.

[0012] Preferably, when multiple extraction plates are stacked one on top of the other, the support protrusion of the recessed part of the upper extraction plate abuts and fixes the contact lens placed in the groove of the lower extraction plate to the extraction grid rib of the lower extraction plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] By setting multiple equally spaced arrayed extraction grid units on the extraction tray, each extraction grid unit can independently hold one contact lens. Compared with traditional extraction trays, this significantly increases the number of lenses that can be hydrated in a single process, making it better suited for mass production scenarios and improving processing efficiency.

[0015] When multiple extraction plates are stacked, the support protrusion of the concave part of the upper extraction plate can make precise contact with the baffle of the extraction grid unit of the lower extraction plate, so as to stably abut and fix the lens in the lower extraction grid unit to the extraction grid rib, effectively counteracting the buoyancy of the lens during the hydration process, preventing the lens from floating out of the extraction grid and reducing lens damage.

[0016] The quenching unit features quenching through holes that allow for longitudinal water inlet and outlet, while the notch on the baffle ring, in conjunction with the baffle wall, enables lateral water inlet and outlet. The synergistic effect of these two structures allows the hydration solution to enter the quenching unit from multiple directions, significantly improving the efficiency of solution exchange inside and outside the quenching unit. This ensures that the lens is in full and complete contact with the hydration solution, guaranteeing the hydration effect.

[0017] The ribs within the cubbling unit support the lens, reducing the contact area between the lens and the cubbling unit and lowering the risk of scratches or pressure damage to the lens during hydration and lens removal. At the same time, the water collection groove at the top of the upper support column retains some of the hydration solution, maintaining the lens's wetness after hydration and preventing the lens from sticking to the bottom of the cubbling unit due to dryness. This facilitates subsequent lens removal and further protects the lens from damage. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the chelating unit in this utility model;

[0021] Figure 4 This is a schematic diagram showing the arrangement of the support bosses in this utility model.

[0022] in:

[0023] 1. Extraction plate; 2. Extraction grid unit; 3. Extraction grid through hole; 4. Water collection trough; 5. Extraction grid rib; 6. Support boss; 7. Notch; 8. Retaining wall. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 4As shown, a contact lens hydration tray includes a tray plate 1; the tray plate 1 is provided with multiple hydration grid units 2; the multiple hydration grid units 2 are arranged in an equally spaced array; the tray plate 1 has 1012 hydration grid units 2; a recess is provided in the center of each hydration grid unit 2; a groove for holding contact lens is provided in the recess; each groove in the recess of each hydration grid unit 2 can hold one contact lens, increasing the load-bearing capacity of the tray plate 1; the cross-sectional shape of the recess is hemispherical, ensuring that the tray plates 1 can be stacked smoothly; an upper support column is fixedly provided on the upper side of the recess, and a lower support column is fixedly provided on the lower side; the axes of the upper support column, the lower support column and the recess are coincident; a retaining ring is fixedly provided on the upper end face of the hydration grid unit 2, and multiple notches 7 are provided on the retaining ring, with adjacent notches... A barrier wall 8 is set between 7; a grid rib 5 is fixedly set on the upper side of the recessed part, and a support protrusion 6 is fixedly set on the lower side. When the grid plates 1 are stacked, the support protrusion 6 restricts the contact lens in the groove of the recessed part, ensuring that the contact lens will not float out of the grid unit 2 due to buoyancy during the hydration process, thus reducing lens loss; a grid through hole 3 is set on the recessed part, which runs through the recessed part from top to bottom; during the hydration process, the grid rib 5 supports the contact lens, reducing the contact area between the lens and the grid unit 2, thereby reducing the risk of injury; the gap 7 between the grid through hole 3 and the barrier wall 8 in the grid unit 2 allows water to enter and exit from different directions (horizontal & vertical), ensuring all-round hydration of the lens, and increasing the efficiency of water exchange inside and outside the grid unit 2.

[0026] Furthermore, the retaining ring has multiple notches 7; the number of retaining walls 8 corresponds to the number of notches 7; the retaining walls 8 and notches 7 are alternately arranged with the axis of the lower recess as the center.

[0027] Furthermore, multiple through holes 3 are configured; the multiple through holes 3 are arranged in a circular array with the axis of the lower recess as the center.

[0028] Furthermore, multiple grating ribs 5 are configured; the multiple grating ribs 5 are arranged in a circular array with the axis of the lower recess as the center; the grating ribs 5 are arranged between two adjacent grating through holes 3.

[0029] Furthermore, multiple support bosses 6 are provided; the multiple support bosses 6 are arranged in a circular array with the axis of the lower recess as the center; the support bosses 6 are arranged between two adjacent through holes 3.

[0030] Furthermore, a water collection tank is provided at the upper end of the upper support column to retain a portion of the hydration solution, ensuring that the lens has a certain degree of wetness, preventing the lens from sticking to the quer unit 2, and facilitating the removal of the lens.

[0031] Furthermore, when multiple extraction plates 1 are stacked one on top of the other, the support protrusion 6 of the concave part of the upper extraction plate 1 abuts and fixes the contact lens placed in the groove of the lower extraction plate 1 onto the extraction grid rib 5 of the lower extraction plate 1.

[0032] How to use

[0033] Pre-treatment inspection: Before use, confirm that the grid unit 2, grid through hole 3, retaining wall 8 notch 7, support boss 6 and grid rib 5 of the grid plate 1 are undamaged and deformed, and ensure that the functions of each structure are intact to avoid affecting the hydration effect and lens safety.

[0034] Lens placement: Place the contact lenses to be hydrated one by one into the grid unit 2 of the hydration tray 1, so that the lenses are placed stably on the grid ribs 5. The grid ribs 5 reduce the contact area between the lenses and the grid unit 2, reducing the risk of scratches and pressure damage to the lenses. Only one lens is placed in each grid unit 2 to ensure that the lenses have enough space for hydration.

[0035] Extraction tray stacking: For batch processing, multiple extraction trays 1 containing lenses are stacked one on top of the other. During stacking, the support boss 6 of the concave part of the upper extraction tray 1 is precisely in contact with the baffle 8 of the extraction grid unit 2 of the lower extraction tray 1. The support boss 6 abuts and fixes the lenses in the lower extraction grid unit 2 to the extraction grid ribs 5, preventing the lenses from floating out of the extraction grid unit 2 due to buoyancy during the hydration process.

[0036] Hydration treatment: The stacked extraction trays are placed into a container filled with hydration solution, allowing the solution to fully enter each extraction unit 2 through the extraction grid through-holes 3 (vertical) and the notches 7 (horizontal) of the baffle wall 8, achieving all-round immersion hydration of the lens. During the hydration process, the solution inside and outside the extraction unit 2 is efficiently exchanged through the through-holes and notches 7, ensuring that the lens fully absorbs water and removes residues.

[0037] Moisturizing and Lens Removal: After hydration, remove the stacked hydration trays. The water collection groove at the top of the upper support column can retain some of the hydration solution to maintain lens hydration and prevent the lenses from sticking to the bottom of the hydration unit 2. Separate the stacked hydration trays 1 one by one, and directly remove the hydrated lenses from the hydration unit 2 for subsequent processing steps.

[0038] Specific Example 1: Contact Lens Hydration and Declawing in Full Immersion Mode, Used in Conjunction with Extraction Disc

[0039] 1. Pre-treatment of the hydration tray and lens loading: Select a hydration tray that meets the structural requirements for contact lens hydration. The tray includes a tray plate with 1012 equally spaced hydration grid units. Each grid unit has a hemispherical recess in the center, containing a groove for holding the lens. The upper side of the recess has hydration grid ribs and an upper support post, while the lower side has a support boss and a lower support post. The upper end face of the hydration unit has a retaining ring with a notch and a retaining wall. The recess also has a through-hole for hydration. Before use, check that the hydration units, through-holes, support bosses, and other structures are undamaged or deformed. Then, place the male and female shell molds with the molded dry lens one by one into the grooves of the hydration units, ensuring that the shell molds and lenses are stably supported on the hydration grid ribs. The hydration grid ribs reduce the contact area between the shell molds, lenses, and hydration units.

[0040] 2. Stacking and fixing of extraction trays: Stack multiple extraction trays with lenses loaded onto each other. When stacking, ensure that the support protrusion of the concave part of the upper extraction tray is in precise contact with the retaining wall of the extraction grid unit of the lower extraction tray. The support protrusion will stably abut and fix the shell mold and lens in the lower extraction grid unit, preventing the shell mold and lens from shifting due to buoyancy during the subsequent hydration process.

[0041] 3. Full Immersion Hydration Deshelling: The stacked extraction trays are placed entirely into a container filled with hydration solution, ensuring the trays are completely submerged. The hydration solution rapidly enters the extraction unit through the extraction grid through-holes (vertical) and retaining ring notches (lateral), ensuring full contact with the lens inside the shell mold. After contact with the hydration solution, the lens, utilizing the expansion properties of its hydrophilic synthetic polymer material, gradually absorbs the solution and expands. During this process, the adhesion between the lens and the male and female shell molds gradually weakens, ultimately resulting in the lens, along with its rough edges, completely separating from the shell mold, achieving automatic shell demolding.

[0042] 4. Lens Removal and Subsequent Processing: After hydration and decapsulation are completed, the extraction tray is removed from the container. A portion of the hydration solution is retained in the water collection tank at the top of the upper support column to maintain lens wettability and prevent the lenses from sticking to the bottom of the extraction unit. The stacked extraction trays are then disassembled sequentially, and the decapsulated lenses are directly removed from the extraction unit for subsequent cleaning and disinfection processes. The male and female lens shells are removed separately from the extraction unit for recycling or disposal.

[0043] Specific Implementation Example 2: Contact Lens Hydration and Decapsulation in Semi-Immersion Mode, Used in Conjunction with Extraction Disc

[0044] 1. Extraction plate adjustment and lens positioning: Select a contact lens hydration extraction plate with the same structure as in Example 1. After checking and confirming that the extraction grid through holes, barrier notches, extraction grid ribs and other structures are functioning normally, place the male and female shell molds with the molded dry lens in the groove of the extraction grid unit. Adjust the position of the shell mold so that the lens inside the shell mold is exactly aligned with the solution contact area of ​​the extraction grid unit. This ensures that only the lens part can contact the hydration solution during subsequent semi-immersion in water, while the rough edge part remains on the upper part of the shell mold and does not contact the solution.

[0045] 2. Stacking and limiting of extraction trays: Following the stacking method in Example 1, the extraction trays loaded with the shell mold and lens are stacked one on top of the other. The support boss of the upper extraction tray and the baffle of the lower extraction tray cooperate to fix the position of the shell mold and lens, preventing the shell mold from shifting during the semi-immersion process and causing the rough edges to come into contact with the solution.

[0046] 3. Semi-immersion hydration and shell removal: The stacked extraction trays are placed in a container filled with hydration solution. The solution level is controlled so that the solution only submerges the lens within the extraction unit, without contacting the burrs on the shell mold. The hydration solution enters the extraction unit through the extraction through-holes and baffle gaps, making full contact with the lens. After absorbing the solution, the lens expands and gradually separates from the male and female shell molds. The burrs, not in contact with the hydration solution, remain relatively stable and adhere to the shell mold, thus achieving automatic separation of the lens and burrs.

[0047] 4. Lens Removal and Shell Mold Processing: After hydration and shell removal, remove the extraction tray. Use the hydration solution retained in the water collection tank on the upper support column to keep the lens moist and prevent it from sticking. After disassembling the extraction tray, directly remove the lens that has been separated from the burrs from the extraction unit. No additional burr treatment is required before proceeding to the next process. Male and female shell molds with burrs are removed from the extraction unit, and the burrs are cleaned and recycled for reuse.

Claims

1. A hydration extraction disc for contact lenses, characterized in that, It includes a collection plate; the collection plate is provided with multiple collection grid units; the multiple collection grid units are arranged in an equally spaced array; the center of the collection grid unit is provided with a recess; the recess is provided with a groove for holding contact lens; the cross-sectional shape of the recess is hemispherical; an upper support column is fixedly provided on the upper side of the recess and a lower support column is fixedly provided on the lower side; the axes of the upper support column, the lower support column and the recess are coincident; a retaining ring is fixedly provided on the upper end face of the collection grid unit, the retaining ring has multiple notches, and the space between two adjacent notches is set as a retaining wall; a collection grid rib is fixedly provided on the upper side of the recess and a support boss is fixedly provided on the lower side; a collection grid through hole is provided on the recess, and the collection grid through hole runs through the recess from top to bottom.

2. The contact lens hydration tray as described in claim 1, characterized in that, The retaining ring has multiple notches; the number of retaining walls corresponds to the number of notches; the retaining walls and notches are alternately arranged with the axis of the lower recess as the center.

3. The contact lens hydration tray as described in claim 1, characterized in that, The grating through holes are configured in multiple ways; the multiple grating through holes are arranged in a circular array with the axis of the recessed portion as the center.

4. The contact lens hydration tray as described in claim 3, characterized in that, The ribs are configured in multiple ways; the multiple ribs are arranged in a circular array with the axis of the recess as the center; the ribs are arranged between two adjacent rib through holes.

5. The contact lens hydration tray as described in claim 3, characterized in that, The support bosses are configured in multiple ways; the multiple support bosses are arranged in a circular array with the axis of the recessed part as the center; the support bosses are arranged between two adjacent through holes.

6. The contact lens hydration tray as described in claim 1, characterized in that, A water collection trough is provided at the upper end of the upper support column.

7. The contact lens hydration tray as described in any one of claims 1 to 6, characterized in that, When multiple extraction plates are stacked one on top of the other, the support protrusion of the concave part of the upper extraction plate abuts and fixes the contact lens placed in the groove of the lower extraction plate to the extraction grid rib of the lower extraction plate.

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