A contact lens mold tray facilitating automated identification control
By installing LED lights on the mold material tray and combining them with a control device, automated identification and manual observation of the mold material tray are achieved, solving the problem of inconvenient identification of the mold material tray in the existing technology and improving detection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HORIEN CONTACT LENS
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-09
AI Technical Summary
While existing contact lens mold trays can accurately identify the status of mold products during automated identification and control, they do not facilitate operators' direct observation and identification of defective products.
Several LED light groups are installed on the mold material tray. Through the transparent placement cavity and the material tray, different colored LED lights are used to indicate the mold status. The color of the lights is controlled by a control device and combined with the vision system of the automated equipment for identification.
It improves the detection efficiency and accuracy of mold material trays in the automated identification and control process, while also making it easier for operators to visually observe defective products, reducing manual intervention and improving production efficiency.
Smart Images

Figure CN224332815U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a contact lens mold tray that is easy to automate identification and control. Background Technology
[0002] As a common vision correction tool, the design and use of mold trays in the manufacturing process of contact lenses have a significant impact on product quality and production efficiency. In the production of contact lenses, mold trays are mainly used to store and transport contact lens molds, serving as a crucial link between various production steps.
[0003] Regarding mold feeding, CN211337599U discloses "a contact lens mold feeding device" which includes a feeding tray, a feeding strip, a first stop, a second stop, a separator, an anti-static device, a flipping device, and a lifting device. This device is reasonably designed and has a low failure rate, which can improve the quality of contact lenses and increase feeding efficiency.
[0004] However, existing contact lens mold trays still have some problems in automated production processes. First, although existing mold trays can accurately identify the product status in the mold during automated identification and control, it is not convenient for operators to visually observe and identify defective products.
[0005] Therefore, there is an urgent need for a contact lens mold tray that can improve the efficiency and accuracy of automated recognition while facilitating intuitive human observation. Utility Model Content
[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a contact lens mold tray that facilitates automated identification and control. By incorporating LED lights, it provides illumination for convenient inspection while allowing operators to easily identify the pass rate of lenses by color. This objective is achieved as follows:
[0007] This utility model proposes a contact lens mold tray that is easy to automatically identify and control, including a shell, a placement cavity inside the shell, a plurality of LED light groups installed on the lower surface of the placement cavity, a mold tray slidably installed inside the placement cavity, a plurality of material holes on the mold tray, the material holes being arranged corresponding to the LED light groups, and the mold tray and the placement cavity being made of transparent material.
[0008] Furthermore, a control device is installed on the upper part of the housing. The LED light group is electrically connected to the control device. The control device is used to control the color of the LED light group and also to provide power to the LED light group for convenient control of the light group's color.
[0009] Furthermore, a slide rail is provided on the upper part of the outer shell, and a slider is installed on the upper part of the mold material tray. The slide rail and the slider are installed together for easy installation.
[0010] Furthermore, a handle is installed on one side of the mold tray to facilitate manual or machine installation.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: by installing several LED lights on the lower surface of the placement cavity and arranging them corresponding to the material holes on the mold material tray, the lighting conditions during detection are increased, improving the detection efficiency and accuracy of the contact lens mold material tray in the automated identification and control process; by controlling the color change of the LED lights through the control device, the operator can intuitively observe the location of the defective products, which is convenient for subsequent processing; the slide rail opened on the upper part of the outer shell cooperates with the slider installed on the upper part of the mold material tray, so that the mold material tray can slide smoothly, which is convenient for the operator to operate. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the upward viewing angle after the combination of a contact lens mold tray for easy automated identification and control.
[0013] Figure 2 This is a top-view schematic diagram of the outer shell of a contact lens mold tray that is easy to automatically identify and control;
[0014] Figure 3 This is a top-view diagram of a contact lens mold tray that facilitates automated identification and control.
[0015] Figure 4 This is a frontal view of the outer shell of a contact lens mold tray that facilitates automated identification and control.
[0016] Figure 5 This is a frontal view of a contact lens mold tray that is easy to automate identification and control.
[0017] In the diagram: 1. Control device, 2. Housing, 3. Mold tray, 4. Handle, 5. LED light group, 6. Slide rail, 7. Slider, 8. Material hole, 9. Placement cavity. Detailed Implementation
[0018] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.
[0019] Example 1
[0020] Please refer to Figure 1-5This utility model proposes a contact lens mold tray 3 that is easy to automatically identify and control. It includes a shell 2, a placement cavity 9 is opened inside the shell 2, several LED lights are installed on the lower surface of the placement cavity 9, the mold tray 3 is slidably installed inside the placement cavity 9, and several material holes 8 are opened on the mold tray 3. The material holes 8 are arranged corresponding to the LED lights. The mold tray 3 and the placement cavity 9 are made of transparent material.
[0021] Specifically, the outer casing 2 is made of ABS engineering plastic, possessing sufficient strength and durability. The overall shape of the outer casing 2 is a cuboid, with a length of 300mm, a width of 200mm, and a height of 50mm. The upper part of the outer casing 2 has an open structure, facilitating the use of the placement cavity 9 and the installation of the mold tray 3. The placement cavity 9 is located inside the outer casing 2, with a depth of 30mm, a length of 280mm, and a width of 180mm. A 10mm gap is left between the four walls of the placement cavity 9 and the inner wall of the outer casing 2 for installing circuitry and other auxiliary devices.
[0022] Understandably, several LEDs are mounted on the lower surface of the placement cavity 9. These LEDs are surface-mounted onto a circuit board on the lower surface of the placement cavity 9. There are 36 LEDs arranged in a 6×6 matrix, with a spacing of 40mm between them. Each LED has a power of 0.5W and a brightness of 100 lumens. The LEDs emit red, green, and blue light, which can be used to indicate different states of the contact lens mold. A mold material tray 3 is slidably mounted inside the placement cavity 9. The mold material tray 3 is 10mm thick, 270mm long, and 170mm wide, with a 5mm gap between it and the placement cavity 9 to facilitate smooth sliding within the cavity. The mold material tray 3 has several material holes 8, the number of which is the same as the number of LED lights. Each material hole 8 has a diameter of 20mm and a depth of 8mm. The bottom of the material hole 8 is 2mm away from the bottom surface of the mold material tray 3, ensuring that the light from the LED lights can pass through the bottom of the material hole 8 and illuminate the contact lens mold inside the material hole 8.
[0023] Understandably, the feed holes 8 are arranged correspondingly to the LED lights, with an LED light directly below each feed hole 8. When the LED light is on, the light can pass through the bottom of the feed hole 8 and illuminate the contact lens mold inside, enabling status identification and automated recognition of the contact lens mold. Both the mold tray 3 and the placement cavity 9 are made of transparent materials. The mold tray 3 is made of transparent polycarbonate material with a light transmittance of over 90%, and the bottom of the placement cavity 9 is also made of transparent polycarbonate material to ensure that the light from the LED lights can pass through effectively.
[0024] Understandably, a control device 1 is mounted on the upper part of the housing 2. The control device 1 includes a control circuit board and a control panel. The control circuit board is mounted on one side of the upper part of the housing 2, and the control panel is mounted on the top of the housing 2. The control panel has a power switch, a mode selection button, and status indicator lights. The control device 1 integrates a microprocessor and a power management module, and has sufficient processing power to control the working status of the LED lights.
[0025] Understandably, the LED lights are electrically connected to the control device 1. The control device 1 is connected to the LED lights via a ribbon cable. The ribbon cable uses a flexible circuit board, is 0.2mm thick and 10mm wide, and is arranged along the side wall of the placement cavity 9, without affecting the sliding of the mold tray 3. The control device 1 is used to control the color of the LED lights. It can be set to emit red, green, or blue light as needed, and can also be set to flash or remain constantly lit. Different colors and lighting modes are used to indicate different states of the contact lens mold. The control device 1 is also used to provide power to the LED lights. The control device 1 integrates a power management module and is powered by a battery, which is sufficient to meet the power needs of 14 LED lights. The control device 1 is also equipped with overcurrent protection and short-circuit protection functions to ensure the safe operation of the LED lights and circuits.
[0026] Understandably, the upper part of the outer shell 2 is provided with a slide rail 6, located on both sides of the upper part of the outer shell 2. The slide rail 6 is 280mm long, 5mm wide, and 3mm deep. The slide rail 6 is made of stainless steel with a polished surface, resulting in a low coefficient of friction to ensure smooth sliding of the mold tray 3. Limiting blocks are provided at both ends of the slide rail 6 to prevent the mold tray 3 from sliding out of the outer shell 2. A slider 7 is installed on the upper part of the mold tray 3, located on both sides of the mold tray 3, corresponding to the slide rail 6. The slider 7 is 20mm long, 5mm wide, and 3mm high, and is made of nylon material, which has good wear resistance and self-lubricating properties. The slide rail 6 and slider 7 are installed together, with the slider 7 embedded in the slide rail 6. The mold tray 3 can slide smoothly along the direction of the slide rail 6, with a sliding stroke of 200mm, which is sufficient to allow the mold tray 3 to slide completely out of the placement cavity 9, facilitating the operator to pick up and put away the contact lens mold.
[0027] Understandably, a handle 4 is installed on one side of the mold tray 3. The handle 4 is located at the front end of the mold tray 3, and its length is 100mm, width is 20mm, and height is 15mm. The handle 4 is made of ABS engineering plastic with anti-slip texture on the surface to ensure that the operator can grip it firmly. The handle 4 is connected to the mold tray 3 by screws, and the connection is firm and reliable. The operator can pull the mold tray 3 through the handle 4 to make the mold tray 3 slide along the slide rail 6 for easy loading and unloading of contact lens molds.
[0028] In use, the operator first turns on the power to the control device 1, and then sets the working mode of the LED light through the control panel. Next, the operator pulls out the mold tray 3 using handle 4, places the contact lens mold into the material hole 8, and then pushes the mold tray 3 back in. The LED light will emit different colors of light according to the set working mode. The light passes through the bottom of the transparent placement cavity 9 and the bottom of the mold tray 3, illuminating the contact lens mold in the material hole 8, thus indicating the status of the contact lens mold.
[0029] Automated equipment can use a vision system to identify different colors of light, thereby determining the status of contact lens molds and enabling automated control. For example, red light may indicate that the contact lens mold needs to be replaced, green light may indicate that the mold can continue to be used, and blue light may indicate that the mold is being processed. In this way, automated identification and control of contact lens molds can be achieved, improving production efficiency and reducing manual intervention.
[0030] Example 2
[0031] Based on Embodiment 1, a contact lens mold tray 3 that is easy to automatically identify and control includes a shell 2, a placement cavity 9 is provided inside the shell 2, a number of LED lights are installed on the lower surface of the placement cavity 9, the mold tray 3 is slidably installed inside the placement cavity 9, a number of material holes 8 are provided on the mold tray 3, the material holes 8 are arranged corresponding to the LED lights, and the mold tray 3 and the placement cavity 9 are made of transparent material.
[0032] A control device 1 is mounted on the upper part of the outer casing 2. The control device 1 includes a control circuit board and a control panel. The control circuit board is mounted on one side of the upper part of the outer casing 2, and the control panel is mounted on the top of the outer casing 2. The control panel is equipped with a power switch, a mode selection button, and status indicator lights. The control device 1 integrates a microprocessor and a power management module, which has stronger processing capabilities and can realize more complex control functions.
[0033] The LED light is electrically connected to the control device 1. The control device 1 is connected to the LED light via a ribbon cable. The ribbon cable is made of a flexible circuit board with a thickness of 0.15mm and a width of 12mm. The ribbon cable is arranged along the side wall of the placement cavity 9 and does not affect the sliding of the mold tray 3. The control device 1 is used to control the color of the LED light. It can be set to emit red, green, blue, yellow, purple, or white light as needed, and different color combinations can be used to indicate different states of the contact lens mold.
[0034] Control device 1 also provides power to the LED lights. It integrates a power management module that converts external AC power into DC power required by the LED lights. The power management module accepts 220V AC input and outputs two DC power sources: 3.3V and 5V, with maximum output currents of 1.5A and 2.5A respectively, meeting the power supply needs of LED lights with different power ratings. Control device 1 is also equipped with overcurrent protection, overvoltage protection, and short-circuit protection to ensure the safe operation of the LED lights and circuitry.
[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A contact lens mold tray that facilitates automated identification and control, characterized in that, The device includes an outer shell, an inner cavity, a plurality of LED light groups mounted on the lower surface of the inner cavity, a mold material tray slidably mounted inside the inner cavity, a plurality of material holes on the mold material tray, the material holes being arranged corresponding to the LED light groups, and the mold material tray and the inner cavity being made of transparent material.
2. The contact lens mold tray according to claim 1, characterized in that, A control device is installed on the upper part of the housing. The LED light group is electrically connected to the control device. The control device is used to control the color of the LED light group and also to provide power to the LED light group.
3. The contact lens mold tray according to claim 1, characterized in that, The upper part of the outer shell is provided with a slide rail, and the upper part of the mold material tray is equipped with a slider. The slide rail and the slider are installed together.
4. The contact lens mold tray according to claim 1, characterized in that, A handle is installed on one side of the mold tray.