Optical element molding control system based on temperature-pressure coupling control

Through the optical component forming control system controlled by temperature-pressure coupling, heating parts, cooling parts and temperature sensors are integrated to achieve temperature uniformity and pressure stability of the optical component forming process, solving the problems of uneven heating and uneven cooling in the prior art, and improving the quality and consistency of optical components.

CN120196158BActive Publication Date: 2025-08-26BEIJING WEIQIAO GUOKE NEW ENERGY TECH RES INST CO LTD +1
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Patent Information

Application Number
CN202510689720.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-27
Publication Date
2025-08-26
Estimated Expiration
2045-05-27

AI Technical Summary

Technical Problem

The layout of heating elements in existing optical component molding equipment is unreasonable and the control system responds slowly, resulting in inaccurate temperature control, unstable pressure output and uneven cooling, affecting the quality and consistency of optical components.

Method used

The optical component forming control system adopts temperature-pressure coupling control, and the integrated block module and the load-bearing module are equipped with heating parts, cooling parts and temperature sensors respectively. The heating and cooling parameters are adjusted in real time by controlling the equipment to ensure temperature uniformity and pressure stability.

Benefits of technology

Improve heating efficiency and cooling uniformity, ensure the shape consistency of optical components and internal stress distribution, reduce defect risks, optimize equipment structure and improve system reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure relates to the technical field of optical element molding control process, and discloses an optical element molding control system based on temperature-pressure coupling control, including an optical element molding device and a control device, wherein the optical element molding device includes: a driving module, integrated with a pressure sensor, the pressure sensor is used to detect the output pressure of the driving module; a pressing block module, the driving module is connected to the pressing block module to drive the pressing block module to move, the pressing block module is integrated with a first heating element, a first cooling element and a first temperature sensor, the first temperature sensor is used to detect the first temperature of the pressing block module; a supporting module, located below the pressing block module, for clamping the mold together with the pressing block module, the supporting module is integrated with a second heating element, a second cooling element and a second temperature sensor, the second temperature sensor is used to detect the second temperature of the supporting module. The above system can improve the accuracy of the optical element molding process, ensure that the temperature changes are uniform and smooth, and the pressure output is more stable.
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Description

Technical Field

[0001] The present disclosure relates to the technical field of optical element molding control process, for example, to an optical element molding control system based on temperature-pressure coupling control. Background Art

[0002] Optical component molding is an advanced manufacturing process used to produce high-precision, complex-shaped optical components such as optical lenses and fiber optic connectors. Optical component molding technology first requires placing a blank into a mold. The mold is then heated to create a viscoelastic state. Pressure is then applied to the mold to force the blank into the desired shape, filling the mold cavity. After the blank cools, the desired optical component is finally obtained.

[0003] The control accuracy of heating, pressurizing and cooling in the optical element molding process will directly affect the quality of the optical element. In the related art, it is difficult to achieve precise control of temperature due to unreasonable layout of heating elements in optical element molding equipment or slow response of the control system. This may lead to local overheating or insufficient heating, which in turn affects the quality and consistency of the optical element. Furthermore, since the error of the control system affects the stable pressure output, it leads to shape deviation of the finished product or uneven distribution of internal stress. In addition, due to the uneven cooling of the cooling elements in the optical element molding equipment, cracks or other structural defects may appear in the optical element. It can be seen that the related art has problems such as inaccurate temperature control, unstable pressure output and uneven cooling process, which seriously affect the quality of the final optical element. Summary of the Invention

[0004] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0005] The embodiments of the present disclosure provide an optical element molding control system based on temperature-pressure coupling control, which can improve the accuracy of the optical element molding process, ensure uniform and smooth temperature changes, and more stable pressure output.

[0006] The present disclosure provides an optical element molding control system based on temperature-pressure coupling control, including an optical element molding device and a control device. The optical element molding device includes:

[0007] The driving module is integrated with a pressure sensor, which is used to detect the output pressure of the driving module;

[0008] A pressing module, a driving module in transmission connection with the pressing module to drive the pressing module to move, the pressing module integrating a first heating element, a first cooling element and a first temperature sensor, the first temperature sensor being used to detect a first temperature of the pressing module;

[0009] A carrying module is located below the pressing module and is used to clamp the mold together with the pressing module. The carrying module is integrated with a second heating element, a second cooling element and a second temperature sensor. The second temperature sensor is used to detect a second temperature of the carrying module.

[0010] The control device is configured to:

[0011] After controlling the driving module to drive the pressing block module to move toward the carrying module to contact the mold, adjusting the operating parameters of the first heating element and the second heating element according to the first temperature and the second temperature respectively;

[0012] According to the output pressure, the driving module is controlled to adjust the movement stroke of the pressing module and apply the target pressure to the mold;

[0013] The operating parameters of the first cooling member and the operating parameters of the second cooling member are adjusted according to the first temperature and the second temperature, respectively.

[0014] In some embodiments, the control device is configured to:

[0015] After the mold is placed on the carrier module, the driving module is controlled to drive the pressing block module to move toward the carrier module to contact the mold;

[0016] adjusting the operating parameters of the first heating element and the second heating element according to the first temperature and the second temperature, respectively, so that the blank in the mold enters a viscoelastic state;

[0017] The driving module adjusts the movement stroke of the pressing module according to the output pressure, applies the target pressure to the mold and maintains it for a preset time, so that the blank is deformed into an optical component of a specified shape;

[0018] adjusting the working parameters of the first cooling member and the second cooling member according to the first temperature and the second temperature, respectively, to lower the temperature of the mold so as to cool and solidify the optical element;

[0019] The driving module is controlled to drive the pressing module away from the bearing module.

[0020] In some embodiments, the control device is configured to:

[0021] adjusting the operating parameters of the first heating element according to the first temperature and adjusting the operating parameters of the second heating element according to the second temperature, so that the first temperature and the second temperature are maintained in a preset temperature range, thereby causing the blank in the mold to enter a viscoelastic state;

[0022] The driving module is controlled to drive the pressing module to move toward the carrying module until the output pressure reaches a preset pressure range. The moving stroke of the pressing module is then dynamically adjusted by the driving module according to the output pressure to keep the output pressure within the preset pressure range, thereby deforming the blank into an optical element of a specified shape.

[0023] After a preset time, the first heating element and the second heating element are controlled to stop working, the operating parameters of the first cooling element are adjusted according to the first temperature, and the operating parameters of the second cooling element are adjusted according to the second temperature, so that the first temperature and the second temperature are reduced to the initial temperature;

[0024] The driving module is controlled to drive the pressing module away from the bearing module.

[0025] In some embodiments, the first heating element includes a first electric heating tube, the second heating element includes a second electric heating tube, and the control device, the first electric heating tube, and the second electric heating tube are all electrically connected to an external power module;

[0026] The control device is configured to: send a first control instruction to the power supply module according to the first temperature and the second temperature, instructing the power supply module to adjust the heating power of the first electric heating tube and the heating power of the second electric heating tube, so that the first temperature and the second temperature are maintained in a preset temperature range, thereby making the blank in the mold enter a viscoelastic state.

[0027] In some embodiments, the first cooling element includes a first water cooling module, the second cooling element includes a second water cooling module, the first water cooling module and the second water cooling module are both connected to an external water pump module, and the control device is electrically connected to the water pump module;

[0028] The control device is configured to: send a second control instruction to the water pump module according to the first temperature and the second temperature, instructing the water pump module to adjust the flow rate of cooling water in the first water cooling module and the second water cooling module, so that the first temperature and the second temperature are reduced to the target temperature according to the preset cooling rate, and the temperature of the mold is reduced to allow the optical element to cool and solidify.

[0029] In some embodiments, the second cooling element includes a liquid nitrogen spray module, the liquid nitrogen spray module is in communication with an external liquid nitrogen drive module, and the control device is electrically connected to the liquid nitrogen drive module;

[0030] The control device is configured to: send a third control instruction to the liquid nitrogen driving module according to the second temperature, instructing the liquid nitrogen driving module to adjust the flow rate of liquid nitrogen in the liquid nitrogen injection module so that the second temperature is reduced to the target temperature according to a preset cooling rate, thereby reducing the temperature of the mold to cool and solidify the optical element.

[0031] In some embodiments, the optical element molding control system further includes a sealed cabin and a vacuum gauge, the pressing block module and the carrying module are both disposed inside the sealed cabin, a portion of the vacuum gauge is disposed inside the sealed cabin to measure the air pressure inside the sealed cabin, the sealed cabin is communicated with an external vacuum pump, and the control device is electrically connected to the vacuum pump and the vacuum gauge;

[0032] The control device is configured to: after the mold is placed on the carrier module, suck the air in the sealed cabin through a vacuum pump according to the air pressure in the cabin, so that the air pressure in the cabin is maintained in a preset air pressure range.

[0033] In some embodiments, the pressing block module includes a pressing block for contacting the mold, a first heating element and a first temperature sensor are disposed inside the pressing block, and a first cooling element is disposed above the pressing block.

[0034] In some embodiments, the first heating element includes a first electric heating tube, the number of the first electric heating tube is multiple, and the pressing block has a first end surface for contacting the mold;

[0035] A first number of first electric heating tubes is used as a first electric heating tube group, and a second number of first electric heating tubes is used as a second electric heating tube group, wherein the first number is greater than the second number;

[0036] The first electric heating tubes in the first electric heating tube group are arranged in a direction parallel to the first end surface, and the first electric heating tubes in the second electric heating tube group are arranged in a direction parallel to the first end surface;

[0037] In a direction perpendicular to the first end surface, the second electric heating tube assembly is closer to the first end surface than the first electric heating tube assembly;

[0038] The symmetric center of the area occupied by the first electric heating tube group is aligned with the symmetric center of the area occupied by the second electric heating tube group.

[0039] In some embodiments, the carrying module includes a carrying block for contacting the mold, and the second heating element and the second temperature sensor are disposed inside the carrying block.

[0040] In some embodiments, the second heating element includes a second electric heating tube, the number of the second electric heating tube is multiple, and the bearing block has a second end surface for contacting the mold;

[0041] The third number of the second electric heating tubes is used as a third electric heating tube group, and the fourth number of the second electric heating tubes is used as a fourth electric heating tube group, wherein the third number is greater than the fourth number;

[0042] The second electric heating tubes in the third electric heating tube group are arranged in a direction parallel to the second end surface, and the second electric heating tubes in the fourth electric heating tube group are all arranged in a direction parallel to the second end surface;

[0043] In a direction perpendicular to the second end surface, the fourth electric heating tube group is closer to the second end surface than the third electric heating tube group;

[0044] The symmetric center of the area occupied by the third electric heating tube group is aligned with the symmetric center of the area occupied by the fourth electric heating tube group.

[0045] In some embodiments, the second cooling member includes a second water cooling module, and the second water cooling module is disposed below the supporting block.

[0046] In some embodiments, the second cooling member includes a liquid nitrogen spray module having a plurality of nozzles, and the plurality of nozzles are spaced apart along the periphery of the carrier block.

[0047] In some embodiments, the drive module includes a motor, an electric cylinder, a transmission shaft assembly and a support, and the transmission shaft assembly is integrated with a pressure sensor;

[0048] The electric cylinder is fixed to the support, the motor is connected to one end of the transmission shaft group through the electric cylinder, and the other end of the transmission shaft group is connected to the pressing block module.

[0049] In some embodiments, the transmission shaft assembly is provided with a linkage plate, and the support includes a support column, a support plate, and a guide column;

[0050] The support plate is fixed to the support column, and the electric cylinder is fixed to the support plate;

[0051] The guide column is parallel to the transmission shaft group, the guide column is fixedly connected to the linkage plate, and the guide column is slidably arranged on the support plate.

[0052] The optical element molding control system based on temperature-pressure coupling control provided by the embodiments of the present disclosure can achieve the following technical effects:

[0053] In the optical element molding control system based on temperature-pressure coupling control provided by the disclosed embodiments, the pressing block module and the supporting module in the optical element molding equipment are integrated with a first heating element and a second heating element, respectively. Because the pressing block module and the supporting module can jointly clamp the mold, during operation, the first heating element and the second heating element simultaneously heat the mold from two directions through the pressing block module and the supporting module, respectively, resulting in more uniform heating of the blank in the mold and improved heating efficiency.

[0054] Furthermore, the pressing block module and the carrier module are each integrated with a primary cooling element and a secondary cooling element. During the cooling phase, these elements first cool the pressing block module and the carrier module, and then these two modules simultaneously cool the mold from two directions. This design ensures a more gradual and uniform cooling rate for the molded optical component, reducing the risk of optical defects.

[0055] The pressing module and the carrier module are equipped with a first and second temperature sensor, respectively, enabling them to accurately detect the first temperature of the pressing module and the second temperature of the carrier module. Based on real-time feedback from the first and second temperature sensors, the operating parameters of the first and second heating elements are dynamically adjusted during the heating phase; and the operating parameters of the first and second cooling elements are adjusted during the cooling phase, ensuring more precise temperature control during the heating and cooling processes.

[0056] Furthermore, the optical component molding equipment integrates a pressure sensor into the drive module, enabling more accurate detection of the drive module's output pressure. Furthermore, because the pressure sensor is located away from the heating and cooling elements, it is less susceptible to temperature fluctuations, further ensuring the accuracy of the pressure sensor's pressure detection results. Based on real-time data from the pressure sensor, the control device controls the drive module to dynamically adjust the travel of the pressure block module, thereby maintaining a constant pressure output. This not only ensures consistent optical component shape but also optimizes internal stress distribution, reducing quality issues caused by pressure fluctuations.

[0057] By integrating the first heating element, first cooling element, and first temperature sensor into the pressing block module, and the second heating element, second cooling element, and second temperature sensor into the carrier module, the device structure is simplified, the spatial layout is optimized, and motion interference issues are avoided. This design significantly improves the overall performance and reliability of the system.

[0058] The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0060] Figure 1 1 is a schematic structural diagram of an optical element molding control system based on temperature-pressure coupling control provided by an embodiment of the present disclosure;

[0061] Figure 2 is a schematic diagram of a portion of the structure of an optical element molding device provided by an embodiment of the present disclosure;

[0062] Figure 3 is a schematic diagram of a briquetting module provided by an embodiment of the present disclosure;

[0063] Figure 4 is a schematic diagram of a carrier module provided by an embodiment of the present disclosure;

[0064] Figure 5 This is a schematic diagram of a portion of the structure of a drive module provided by an embodiment of the present disclosure;

[0065] Figure 6 This is a simplified connection diagram of an optical element molding control system based on temperature-pressure coupling control and auxiliary equipment provided by an embodiment of the present disclosure;

[0066] Figure 7 It is a schematic diagram of a control device provided by an embodiment of the present disclosure.

[0067] The following are the descriptions of the accompanying figures:

[0068] 100 optical component molding equipment;

[0069] 1 driver module;

[0070] 11 pressure sensor, 12 motor, 13 electric cylinder, 14 transmission shaft assembly, 15 support, 16 vacuum gauge;

[0071] 2. Block module;

[0072] 21 first heating element, 211 first electric heating tube, 22 first cooling element, 221 first water cooling module, 23 first temperature sensor, 24 pressing block, 241 first end surface;

[0073] 3 bearing modules;

[0074] 31 second heating element, 311 second electric heating tube, 32 second cooling element, 321 second water cooling module, 322 liquid nitrogen injection module, 3221 nozzle, 3222 main line, 33 second temperature sensor, 34 bearing block, 341 second end surface;

[0075] 4 sealed cabins;

[0076] 41 hatch, 42 observation window, 43 vacuum valve, 44 nitrogen valve, 45 cooling water interface;

[0077] 5 bellows;

[0078] 200 control equipment, 300 vacuum pump;

[0079] 400 power module, 500 water pump module, 600 liquid nitrogen drive module. DETAILED DESCRIPTION

[0080] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0081] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0082] Unless otherwise stated, the term "plurality" means two or more.

[0083] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0084] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0085] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0086] The embodiment of the present disclosure provides an optical element molding control system based on temperature-pressure coupling control, which can be used to manufacture optical elements. The materials of the optical elements can be glass, ceramics, thermoplastic materials, thermosetting materials, etc. Figures 1 to 5 As shown, the optical element molding control system includes an optical element molding device 100 and a control device 200. The control device 200 can be electrically connected to some electrical components and some auxiliary devices in the optical element molding device 100 to control the optical element molding device 100 to complete the molding process of the blank.

[0087] In the disclosed embodiment, the optical element molding apparatus 100 includes a drive module 1, a pressing module 2, and a supporting module 3. The drive module 1 can drive the pressing module 2 to move toward or away from the supporting module 3. The supporting module 3 is used to support the mold. When the pressing module 2 approaches the supporting module 3, the pressing module 2 and the supporting module 3 can jointly clamp the mold. Here, the mold cavity is used to load the blank.

[0088] The drive module 1 is integrated with a pressure sensor 11, which is used to detect the output pressure of the drive module 1. The drive module 1 and the pressure sensor 11 are both electrically connected to the control device 200. The control device 200 can control the drive module 1 to move the pressing module 2 toward or away from the carrier module 3. When the pressing module 2 contacts the mold, the control device 200 can control the drive module 1 to adjust the movement of the pressing module 2 based on the output pressure, so that the pressing module 2 can apply the target pressure to the mold and maintain it for a preset duration.

[0089] The driving module 1 is in transmission connection with the pressing module 2, and the driving module 1 can drive the pressing module 2 to move. The pressing module 2 is integrated with a first heating element 21, a first cooling element 22, and a first temperature sensor 23. The first temperature sensor 23 is used to detect the first temperature of the pressing module 2. The first heating element 21, the first cooling element 22, and the first temperature sensor 23 can be directly or indirectly electrically connected to the control device 200. The control device 200 can adjust the operating parameters of the first heating element 21 according to the first temperature, and adjust the operating parameters of the first cooling element 22 according to the first temperature.

[0090] The carrier module 3 is located below the pressing module 2. The carrier module 3 is integrated with a second heating element 31, a second cooling element 32, and a second temperature sensor 33. The second temperature sensor 33 is used to detect the second temperature of the carrier module 3. The second heating element 31, the second cooling element 32, and the second temperature sensor 33 can be directly or indirectly electrically connected to the control device 200. The control device 200 can adjust the operating parameters of the second heating element 31 according to the second temperature and adjust the operating parameters of the second cooling element 32 according to the second temperature.

[0091] The control device 200 can control the optical element molding device 100 to complete the molding process of the blank. The control device 200 is configured to: after controlling the driving module 1 to drive the pressure block module 2 to move toward the supporting module 3 to contact the mold, adjust the working parameters of the first heating element 21 and the working parameters of the second heating element 31 according to the first temperature and the second temperature respectively; control the driving module 1 to adjust the moving stroke of the pressure block module 2 according to the output pressure to apply the target pressure to the mold; adjust the working parameters of the first cooling element 22 and the working parameters of the second cooling element 32 according to the first temperature and the second temperature respectively.

[0092] Optionally, the compression molding process may include the following steps:

[0093] (1) The blank is placed into the cavity of the mold, and then the mold is placed on the supporting module 3 of the optical element molding equipment 100.

[0094] (2) After the mold is placed on the carrier module 3 , the control device 200 controls the driving module 1 to drive the pressing module 2 to move toward the carrier module 3 to contact the mold.

[0095] (3) The control device 200 adjusts the working parameters of the first heating element 21 and the working parameters of the second heating element 31 according to the first temperature and the second temperature, respectively, so that the blank in the mold enters a viscoelastic state.

[0096] By adjusting the operating parameters of the first and second heating elements 21 and 31, the control device 200 can cause the first and second heating elements 21 and 31 to heat the pressing module 2 and the supporting module 3, respectively. Because the pressing module 2 and the supporting module 3 now jointly clamp the mold, the first and second heating elements 21 and 31 simultaneously heat the mold from two directions, respectively, through the pressing module 2 and the supporting module 3. When the temperature in the mold reaches the blank's transformation temperature (e.g., 600°C to 750°C), the blank in the mold enters a viscoelastic state.

[0097] (4) The control device 200 controls the driving module 1 to adjust the movement stroke of the pressing module 2 according to the output pressure, applies the target pressure to the mold and maintains it for a preset time, so that the blank is deformed into an optical element of a specified shape.

[0098] The control device 200 can control the pressing module 2 to move toward the supporting module 3, so that the blank of the mold is gradually deformed into an optical element of a specified shape. When the pressure applied to the mold by the pressing module 2 reaches the target pressure, the control device 200 controls the driving module 1 according to the output pressure to dynamically adjust the movement stroke of the pressing module 2, so that the pressing module 2 stably applies the target pressure to the mold and maintains the preset time. Within the preset time, the blank can continue to flow in the mold cavity to fill the cavity as much as possible, so that the shape of the optical element is more accurate. Here, the specific values ​​of the target pressure and the preset time can be determined according to the specific type of the blank. For example, the value of the preset time can be between 30 seconds and 300 seconds.

[0099] (5) The control device 200 adjusts the working parameters of the first cooling member 22 and the working parameters of the second cooling member 32 according to the first temperature and the second temperature, respectively, to reduce the temperature of the mold so that the optical element is cooled and solidified.

[0100] The control device 200 adjusts the working parameters of the first cooling member 22 and the working parameters of the second cooling member 32. The first cooling member 22 and the second cooling member 32 first cool the pressing block module 2 and the supporting module 3, and then cools the mold from two directions at the same time through the pressing block module 2 and the supporting module 3, so that the optical elements in the mold are cooled and solidified.

[0101] (6) The control device 200 controls the driving module 1 to drive the pressing module 2 away from the carrying module 3.

[0102] (7) Remove the mold and take out the optical element from the mold.

[0103] It is understandable that after the pressing module 2 is separated from the supporting module 3, the mold is no longer clamped, so the mold can be directly removed from the supporting module 3 and the optical element can be removed from the mold.

[0104] In the optical element molding control system based on temperature-pressure coupling control provided by the embodiments of the present disclosure, the pressing module 2 and the supporting module 3 in the optical element molding apparatus 100 are respectively integrated with a first heating element 21 and a second heating element 31. Because the pressing module 2 and the supporting module 3 can jointly clamp the mold, during operation, the first heating element 21 and the second heating element 31 simultaneously heat the mold from two directions through the pressing module 2 and the supporting module 3, respectively, so that the blank in the mold is heated more evenly and the heating efficiency is improved.

[0105] Furthermore, the pressing module 2 and the carrier module 3 are each integrated with a first cooling element 22 and a second cooling element 32. During the cooling phase, the first cooling element 22 and the second cooling element 32 first cool the pressing module 2 and the carrier module 3, and then simultaneously cool the mold from two directions through the pressing module 2 and the carrier module 3. This design ensures a more gradual and uniform cooling rate for the molded optical component, thereby reducing the risk of defects in the optical component.

[0106] The pressing module 2 and the supporting module 3 are respectively equipped with a first temperature sensor 23 and a second temperature sensor 33, which enable them to accurately detect the first temperature of the pressing module 2 and the second temperature of the supporting module 3. Based on the real-time feedback from the first and second temperature sensors 23 and 33, the operating parameters of the first heating element 21 and the second heating element 31 are dynamically adjusted during the heating phase; and the operating parameters of the first and second cooling elements 22 and 32 are adjusted during the cooling phase, ensuring more precise temperature control during the heating and cooling processes.

[0107] Furthermore, the optical element molding apparatus 100 integrates a pressure sensor 11 into the drive module 1, enabling more accurate detection of the output pressure of the drive module 1. Furthermore, since the pressure sensor 11 is located away from the heating and cooling elements, the impact of temperature changes on the pressure sensor 11 is avoided, further ensuring the accuracy of the pressure detection results of the pressure sensor 11. Based on the real-time data provided by the pressure sensor 11, the control device 200 can control the drive module 1 to dynamically adjust the travel of the pressure block module 2, thereby maintaining a constant pressure output. This not only ensures the consistency of the optical element shape but also optimizes the internal stress distribution of the optical element, reducing quality issues caused by pressure fluctuations.

[0108] By integrating the first heating element 21, the first cooling element 22, and the first temperature sensor 23 into the pressing module 2, and the second heating element 31, the second cooling element 32, and the second temperature sensor 33 into the carrier module 3, the device structure is simplified, the spatial layout is optimized, and motion interference issues are avoided. This design significantly improves the overall performance and reliability of the system.

[0109] In some embodiments, the control device 200 is configured to: adjust the working parameters of the first heating element 21 according to the first temperature, adjust the working parameters of the second heating element 31 according to the second temperature, so that the first temperature and the second temperature are maintained in a preset temperature range, so that the blank in the mold enters a viscoelastic state. Control the driving module 1 to drive the pressing block module 2 to move toward the carrying module 3 until the output pressure reaches the preset pressure range, and then control the driving module 1 to dynamically adjust the moving stroke of the pressing block module 2 according to the output pressure, so that the output pressure is maintained in the preset pressure range, so that the blank is deformed into an optical element of a specified shape. After a preset time, control the first heating element 21 and the second heating element 31 to stop working, adjust the working parameters of the first cooling element 22 according to the first temperature, and adjust the working parameters of the second cooling element 32 according to the second temperature, so that the first temperature and the second temperature are reduced to the target temperature. Control the driving module 1 to drive the pressing block module 2 away from the carrying module 3.

[0110] In the embodiment of the present disclosure, the preset temperature range can be determined according to the blank transformation temperature. When the first temperature and the second temperature are maintained in the preset temperature range, the temperature in the mold can reach the blank transformation temperature.

[0111] In the embodiment of the present disclosure, the preset pressure interval can be determined according to the target pressure. When the output pressure of the driving module 1 is maintained in the preset pressure interval, the pressing module 2 can stably apply the target pressure to the mold.

[0112] In the embodiment of the present disclosure, the target temperature may be an ambient temperature or a preset default temperature. When the first temperature and the second temperature are reduced to the target temperature, it should be ensured that the optical element is completely cured.

[0113] In some embodiments, combined Figures 1 to 6 As shown, the optical element molding control system also includes a sealed cabin 4 and a vacuum gauge 16. The pressing module 2 and the carrier module 3 are both disposed within the sealed cabin 4. A portion of the vacuum gauge 16 is disposed within the sealed cabin 4 to measure the air pressure within the sealed cabin 4. The sealed cabin 4 is in communication with an external vacuum pump 300, and the control device 200 is electrically connected to the vacuum pump 300 and the vacuum gauge 16.

[0114] In the process where the control device 200 can control the optical element molding device 100 to complete the molding of the blank, it is necessary to open the hatch 41 of the sealed cabin 4 and place the mold on the carrier module 3 of the optical element molding device 100. After the mold is placed on the carrier module 3, the control device 200 sucks the air in the sealed cabin 4 through the vacuum pump 300 according to the air pressure in the cabin, so that the air pressure in the cabin is maintained in the preset air pressure range. When the air pressure in the cabin is maintained in the preset air pressure range, the control device 200 controls the drive module 1 to drive the pressure block module 2 to move toward the carrier module 3 to contact the mold, and then executes subsequent steps. Here, the sealed cabin 4 provides an environment close to vacuum. Completing the molding process of the blank in such an environment can reduce the gas content in the blank, thereby reducing the amount of bubbles and surface defects in the optical element, and improving the quality of the final molded optical element.

[0115] In some embodiments, the drive module 1 includes a motor 12, an electric cylinder 13, a drive shaft assembly 14, and a support 15. The drive shaft assembly 14 is integrated with a pressure sensor 11. The electric cylinder 13 is fixed to the support 15. The motor 12 is connected to one end of the drive shaft assembly 14 via the electric cylinder 13. The other end of the drive shaft assembly 14 is connected to the pressing module 2. The motor 12 is electrically connected to a control device 200. The control device 200 can control the motor 12 to output rotational motion. The electric cylinder 13 can convert the rotational motion of the motor 12 into linear motion, thereby driving the drive shaft assembly 14 along its axial direction. The drive shaft assembly 14 drives the pressing module 2 toward or away from the carrier module 3.

[0116] In some embodiments, combined Figures 1 to 6 As shown, the first heating element 21 includes a first electric heating tube 211, and the second heating element 31 includes a second electric heating tube 311. The control device 200, the first electric heating tube 211, and the second electric heating tube 311 are all electrically connected to an external power supply module 400. The control device 200 is configured to send a first control instruction to the power supply module 400 based on the first temperature and the second temperature, instructing the power supply module 400 to adjust the heating power of the first electric heating tube 211 and the heating power of the second electric heating tube 311 so that the first temperature and the second temperature are maintained within a preset temperature range, thereby causing the blank in the mold to enter a viscoelastic state.

[0117] The control device 200, in conjunction with the power module 400, can send a first control instruction to the power module 400 based on the real-time monitored first and second temperatures to precisely adjust the heating power of the first and second electric heating tubes 211 and 311. This feedback-based control system enables high-precision temperature control, ensuring that the blank uniformly and accurately reaches its viscoelastic state.

[0118] In some embodiments, combined Figures 1 to 6 As shown, the first cooling element 22 includes a first water-cooling module 221, and the second cooling element 32 includes a second water-cooling module 321. The first water-cooling module 221 and the second water-cooling module 321 are both in communication with an external water pump module 500, and the control device 200 is electrically connected to the water pump module 500. The control device 200 is configured to send a second control instruction to the water pump module 500 based on the first temperature and the second temperature, instructing the water pump module 500 to adjust the flow rate of cooling water in the first water-cooling module 221 and the second water-cooling module 321, so that the first temperature and the second temperature are reduced to the target temperature according to the preset cooling rate, thereby reducing the temperature of the mold and cooling and solidifying the optical element.

[0119] By monitoring the first and second temperatures in real time, the control device 200 can send corresponding control instructions based on the actual temperatures to adjust the operating parameters of the water pump module 500, thereby precisely regulating the flow rate of cooling water in the first and second water cooling modules 221 and 321. This ensures that the mold and the optical components within it cool at a preset rate. The slow and even cooling process helps reduce thermal stress in the optical components and prevent defects such as cracks and deformation caused by rapid cooling.

[0120] In some embodiments, combined Figures 1 to 6 As shown, the second cooling element 32 includes a liquid nitrogen injection module 322, which is in communication with an external liquid nitrogen driving module 600. The control device 200 is electrically connected to the liquid nitrogen driving module 600. The control device 200 is configured to send a third control instruction to the liquid nitrogen driving module 600 based on the second temperature, instructing the liquid nitrogen driving module 600 to adjust the flow rate of liquid nitrogen in the liquid nitrogen injection module 322 so that the second temperature is reduced to the target temperature at a preset cooling rate, thereby reducing the temperature of the mold and cooling and solidifying the optical element.

[0121] In the disclosed embodiment, a liquid nitrogen injection module 322 is used as the second cooling element 32, and nitrogen cooling is applied only after the optical element molding process is completed. This design cleverly utilizes the efficient cooling capacity of liquid nitrogen while ensuring that the cooling medium does not adversely affect the quality of the final product. Specifically, after the optical element is molded and achieves the desired shape and structure, the control device 200 sends a precise third control instruction to the liquid nitrogen drive module 600 based on the real-time temperature of the carrier module 3 (i.e., the second temperature). This enables the liquid nitrogen injection module 322 to adjust the liquid nitrogen flow rate according to a preset cooling rate, effectively reducing the temperature of the mold and the optical element therein, promoting rapid and uniform cooling and solidification of the optical element. Because the liquid nitrogen is introduced after the optical element has been finalized and acts directly on the mold exterior rather than the interior, it ensures that the nitrogen creates a cooling environment only around the mold surface and does not penetrate into the interior of the optical element. This means that the presence and use of nitrogen will not interfere with or change the properties of the blank itself, nor will it leave any residue inside the optical element or cause other potential quality issues.

[0122] In some embodiments, the pressing block module 2 includes a pressing block 24 for contacting the mold, the first heating element 21 and the first temperature sensor 23 are disposed inside the pressing block 24 , and the first cooling element 22 is disposed above the pressing block 24 .

[0123] Placing the first heating element 21 inside the pressing block 24 directly heats the pressing block 24, achieving rapid and uniform heat transfer through direct contact between the pressing block 24 and the mold. This ensures that the blank quickly enters a viscoelastic state, facilitating the smooth progress of the subsequent molding process. The design of the first cooling element 22 above the pressing block 24 allows for rapid reduction of the temperature of the pressing block 24 when necessary, indirectly cooling the mold and the optical elements therein through heat conduction, helping to control the cooling rate and reduce stress concentration or cracks caused by excessive temperature differences.

[0124] In some embodiments, there are multiple first electric heating tubes 211, and the pressing block 24 has a first end surface 241 for contacting the mold. The first number of first electric heating tubes 211 is referred to as a first electric heating tube group, and the second number of first electric heating tubes 211 is referred to as a second electric heating tube group, where the first number is greater than the second number. Each first electric heating tube 211 in the first electric heating tube group is arranged parallel to the first end surface 241, and each first electric heating tube 211 in the second electric heating tube group is arranged parallel to the first end surface 241. In a direction perpendicular to the first end surface 241, the second electric heating tube group is closer to the first end surface 241 than the first electric heating tube group. The center of symmetry of the area occupied by the first electric heating tube group is aligned with the center of symmetry of the area occupied by the second electric heating tube group. The values ​​of the first and second numbers can be determined based on actual design requirements. For example, the first number can be 4 and the second number can be 2.

[0125] In some embodiments, a plurality of first electric heating tubes 211 are disposed around the first temperature sensor 23 , which can make the temperature detected by the first temperature sensor 23 more accurate.

[0126] In the disclosed embodiment, different regions within the compact 24 have different distances from the mold, resulting in different heat conduction paths. Specifically, the region near the first end face 241 is in direct contact with the mold, making it easier for heat to be transferred to the mold. Therefore, reducing the number of first electric heating tubes 211 in this region can avoid local overheating. The region away from the first end face 241 is farther from the mold and suffers from greater heat loss. By increasing the number of first electric heating tubes 211 in this region, energy attenuation during the heat transfer process can be compensated. Therefore, by limiting the direction perpendicular to the first end face 241, the second electric heating tube group containing fewer first electric heating tubes 211 is closer to the first end face 241 than the first electric heating tube group containing more first electric heating tubes 211, thereby ensuring a more balanced temperature distribution within the overall compact 24. Furthermore, the centers of symmetry of the distribution areas of the first and second electric heating tube groups are aligned, meaning that the heat output is symmetrically distributed around a geometric center. This symmetrical structure helps to form a more uniform and symmetrical temperature field. Through the above design, the temperature of each position of the first end surface 241 can be made more uniform, so that the mold can obtain consistent heat input conditions during the heating stage, thereby ensuring that the overall time for the blank to enter the viscoelastic state is consistent and the deformation behavior is consistent.

[0127] In some embodiments, the carrier module 3 includes a carrier block 34 for contact with the mold, with the second heating element 31 and the second temperature sensor 33 disposed within the carrier block 34. Placing the second heating element 31 within the carrier block 34 directly heats the carrier block 34, achieving rapid and uniform heat transfer through direct contact between the carrier block 34 and the mold. This ensures that the blank quickly reaches a viscoelastic state, facilitating the molding process.

[0128] In some embodiments, there are multiple second electric heating tubes 311, and the support block 34 has a second end surface 341 for contacting the mold. A third number of second electric heating tubes 311 is defined as a third electric heating tube group, and a fourth number of second electric heating tubes 311 is defined as a fourth electric heating tube group, where the third number is greater than the fourth number. Each second electric heating tube 311 in the third electric heating tube group is arranged parallel to the second end surface 341, and each second electric heating tube 311 in the fourth electric heating tube group is arranged parallel to the second end surface 341. In a direction perpendicular to the second end surface 341, the fourth electric heating tube group is closer to the second end surface 341 than the third electric heating tube group. The center of symmetry of the area occupied by the third electric heating tube group is aligned with the center of symmetry of the area occupied by the fourth electric heating tube group. The values ​​of the third and fourth numbers can be determined based on actual design requirements. For example, the third number can be 4 and the fourth number can be 2.

[0129] In the disclosed embodiment, different regions within the support block 34 have different heat conduction paths due to their varying distances from the mold. Specifically, the area near the second end face 341 is in direct contact with the mold, making heat transfer to the mold easier. Therefore, reducing the number of second electric heating tubes 311 in this area can avoid local overheating. Regions farther from the second end face 341 are further from the mold and experience greater heat loss. By increasing the number of second electric heating tubes 311 in this area, energy attenuation during heat transfer can be compensated. Therefore, by limiting the direction perpendicular to the second end face 341, the fourth electric heating tube group containing fewer second electric heating tubes 311 is closer to the first end face 241 than the third electric heating tube group containing more second electric heating tubes 311, ensuring a more balanced temperature distribution within the support block 34. Furthermore, the centers of symmetry of the distribution areas of the third and fourth numbers of second electric heating tubes 311 are aligned, meaning that the heat output is symmetrically distributed around a common geometric center. This symmetrical structure contributes to a more uniform and symmetrical temperature field. Through the above design, the temperature of each position of the second end surface 341 can be made more uniform, so that the mold can obtain consistent heat input conditions during the heating stage, thereby ensuring that the overall time for the blank to enter the viscoelastic state is consistent and the deformation behavior is consistent.

[0130] In some embodiments, a plurality of second electric heating tubes 311 are disposed around the second temperature sensor 33 , which can make the temperature detected by the second temperature sensor 33 more accurate.

[0131] In some embodiments, when the second cooling element 32 includes a second water-cooling module 321, the second water-cooling module 321 is disposed below the carrier block 34. The design of the second cooling element 32 below the carrier block 34 allows the temperature of the carrier block 34 to be quickly reduced when needed, indirectly cooling the mold and the optical elements therein through heat conduction, helping to control the cooling rate and reduce stress concentration or cracks caused by excessive temperature differences.

[0132] In some embodiments, the liquid nitrogen spray module 322 includes multiple nozzles 3221 spaced apart along the periphery of the carrier block 34. Because the multiple nozzles 3221 are arranged in a ring around the carrier block 34, liquid nitrogen can be sprayed simultaneously from multiple directions onto the carrier block 34 and the surrounding mold surface, avoiding large local temperature differences and uneven cooling. This helps to quickly and evenly cool the entire carrier block 34, thereby driving the temperature field of the mold and the optical elements therein to a uniform level, reducing defects such as thermal stress and cracks caused by uneven cooling.

[0133] In some embodiments, the liquid nitrogen spray module 322 includes a main line 3222 that communicates with an external liquid nitrogen drive module 600. The main line 3222 is disposed around the carrier block 34. A plurality of nozzles 3221 are disposed on the main line 3222 and spaced apart along the extension direction of the main line 3222, thereby achieving a plurality of nozzles 3221 spaced apart along the periphery of the carrier block 34.

[0134] In some embodiments, the sealed cabin 4 is provided with an observation window 42 , through which a user can view the interior of the sealed cabin 4 .

[0135] In some embodiments, the sealed cabin 4 is provided with a vacuum valve 43 , and the sealed cabin 4 is connected to an external vacuum pump 300 through the vacuum valve 43 .

[0136] In some embodiments, the sealed cabin 4 is provided with a nitrogen valve 44 , and the liquid nitrogen injection module 322 is connected to the external liquid nitrogen driving module 600 through the nitrogen valve 44 .

[0137] In some embodiments, the sealed cabin 4 is provided with a cooling water interface 45 , and the first water cooling module 221 and the second water cooling module 321 can be connected to the external water pump module 500 through the cooling water interface 45 .

[0138] In some embodiments, the transmission shaft assembly 14 is disposed through the sealed cabin 4, and the end of the transmission shaft assembly 14 located within the sealed cabin 4 is fixedly connected to the first cooling member 22. A bellows 5 is provided at the connection between the transmission shaft assembly 14 and the sealed cabin 4 to form a seal therebetween, thereby ensuring the vacuum level of the sealed cabin 4.

[0139] Combine Figure 7 As shown, the control device 200 provided in the embodiment of the present disclosure includes a processor 201 and a memory 202. Optionally, the device 200 may also include a communication interface 203 and a bus 204. The processor 201, communication interface 203, and memory 202 may communicate with each other via the bus 204. The communication interface 203 may be used for information transmission. The processor 201 may invoke logic instructions stored in the memory 202 to control the optical element molding apparatus 100 to complete the blank molding process.

[0140] In addition, the logic instructions in the memory 202 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0141] Memory 202, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods of the embodiments of the present disclosure. Processor 201 executes the program instructions / modules stored in memory 202 to perform functional applications and data processing, specifically controlling optical element molding apparatus 100 to complete the blank molding process.

[0142] The memory 202 may include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 202 may include a high-speed random access memory and a non-volatile memory.

[0143] The embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions. The control device 200 controls the optical element molding device 100 to complete the molding process of the blank by executing the instructions.

[0144] The technical solutions of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, among other media capable of storing program code.

[0145] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. Moreover, the terms used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, the singular forms "a", "an" and "the" are intended to also include the plural forms unless the context clearly indicates otherwise. Similarly, the term "and / or" as used in this application means any and all possible combinations of one or more of the associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be referred to the description of the method part.

[0146] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0147] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices and equipment) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units may be merely a logical functional division. In actual implementation, other divisions may be used, such as combining or integrating multiple units or components into another system, or omitting or disabling some features. Furthermore, the couplings or direct couplings or communication connections shown or discussed may be through interfaces, indirect couplings or communication connections between devices or units, and may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of these units may be selected to implement the embodiments according to actual needs. Furthermore, the functional units in the disclosed embodiments may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit.

[0148] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. An optical element molding control system based on temperature-pressure coupling control, characterized in that: The optical element molding device (100) comprises an optical element molding device (100) and a control device (200), wherein the optical element molding device (100) comprises: The driving module (1) is integrated with a pressure sensor (11), and the pressure sensor (11) is used to detect the output pressure of the driving module (1); A pressing module (2), a driving module (1) is in transmission connection with the pressing module (2) to drive the pressing module (2) to move, the pressing module (2) is integrated with a first heating element (21), a first cooling element (22) and a first temperature sensor (23), and the first temperature sensor (23) is used to detect a first temperature of the pressing module (2); A bearing module (3) is located below the pressing module (2) and is used to clamp the mold together with the pressing module (2). The bearing module (3) is integrated with a second heating element (31), a second cooling element (32) and a second temperature sensor (33). The second temperature sensor (33) is used to detect a second temperature of the bearing module (3); The pressing block module (2) includes a pressing block (24) for contacting the mold, a first heating element (21) and a first temperature sensor (23) are arranged inside the pressing block (24), and a first cooling element (22) is arranged above the pressing block (24); The bearing module (3) includes a bearing block (34) for contacting the mold, a second heating element (31) and a second temperature sensor (33) are arranged inside the bearing block (34), and the second cooling element (32) includes a second water cooling module (321), and the second water cooling module (321) is arranged below the bearing block (34); The control device (200) is configured to: After controlling the driving module (1) to drive the pressing module (2) to move toward the carrying module (3) to contact the mold, respectively adjusting the operating parameters of the first heating element (21) and the operating parameters of the second heating element (31) according to the first temperature and the second temperature; According to the output pressure, the driving module (1) is controlled to adjust the movement stroke of the pressing module (2) to apply the target pressure to the mold; The operating parameters of the first cooling member (22) and the operating parameters of the second cooling member (32) are adjusted according to the first temperature and the second temperature, respectively.

2. The optical element molding control system according to claim 1, characterized in that: The control device (200) is configured to: After the mold is placed on the carrier module (3), the driving module (1) is controlled to drive the pressing block module (2) to move toward the carrier module (3) to contact the mold; adjusting the operating parameters of the first heating element (21) and the operating parameters of the second heating element (31) according to the first temperature and the second temperature, respectively, so that the blank in the mold enters a viscoelastic state; The moving stroke of the pressing module (2) is adjusted by the driving module (1) according to the output pressure, and the target pressure is applied to the mold and maintained for a preset time, so that the blank is deformed into an optical element of a specified shape; Adjusting the working parameters of the first cooling member (22) and the working parameters of the second cooling member (32) according to the first temperature and the second temperature respectively, lowering the temperature of the mold so as to cool and solidify the optical element; The driving module (1) is controlled to drive the pressing module (2) away from the bearing module (3).

3. The optical element molding control system according to claim 2, characterized in that: The control device (200) is configured to: Adjusting the operating parameters of the first heating element (21) according to the first temperature and adjusting the operating parameters of the second heating element (31) according to the second temperature, so that the first temperature and the second temperature are maintained within a preset temperature range, thereby causing the blank in the mold to enter a viscoelastic state; The driving module (1) is controlled to drive the pressing module (2) to move toward the carrying module (3) until the output pressure reaches a preset pressure range, and then the driving module (1) is controlled to dynamically adjust the movement stroke of the pressing module (2) according to the output pressure so that the output pressure is maintained within the preset pressure range, thereby deforming the blank into an optical element of a specified shape; After a preset time, the first heating element (21) and the second heating element (31) are controlled to stop working, the working parameters of the first cooling element (22) are adjusted according to the first temperature, and the working parameters of the second cooling element (32) are adjusted according to the second temperature, so that the first temperature and the second temperature are reduced to the target temperature; The driving module (1) is controlled to drive the pressing module (2) away from the bearing module (3).

4. The optical element molding control system according to claim 3, characterized in that: The first heating element (21) includes a first electric heating tube (211), the second heating element (31) includes a second electric heating tube (311), and the control device (200), the first electric heating tube (211), and the second electric heating tube (311) are all electrically connected to an external power supply module (400); The control device (200) is configured to send a first control instruction to the power module (400) according to the first temperature and the second temperature, instructing the power module (400) to adjust the heating power of the first electric heating tube (211) and the heating power of the second electric heating tube (311), so that the first temperature and the second temperature are maintained in a preset temperature range, thereby causing the blank in the mold to enter a viscoelastic state.

5. The optical element molding control system according to claim 3, characterized in that: The first cooling element (22) includes a first water cooling module (221), the second cooling element (32) includes a second water cooling module (321), the first water cooling module (221) and the second water cooling module (321) are both connected to an external water pump module, and the control device (200) is electrically connected to the water pump module; The control device (200) is configured to send a second control instruction to the water pump module according to the first temperature and the second temperature, instructing the water pump module to adjust the flow rate of cooling water in the first water cooling module (221) and the second water cooling module (321), so that the first temperature and the second temperature are reduced to the target temperature according to the preset cooling rate, thereby reducing the temperature of the mold and allowing the optical element to cool and solidify.

6. The optical element molding control system according to claim 3, characterized in that: The second cooling element (32) includes a liquid nitrogen injection module (322), the liquid nitrogen injection module (322) is communicated with an external liquid nitrogen drive module (600), and the control device (200) is electrically connected to the liquid nitrogen drive module (600); The control device (200) is configured to send a third control instruction to the liquid nitrogen driving module (600) according to the second temperature, instructing the liquid nitrogen driving module (600) to adjust the flow rate of liquid nitrogen in the liquid nitrogen injection module (322) so that the second temperature is reduced to a target temperature according to a preset cooling rate, thereby reducing the temperature of the mold and allowing the optical element to cool and solidify.

7. The optical element molding control system according to claim 1, characterized in that: The device further comprises a sealed cabin (4) and a vacuum gauge (16), wherein the pressing block module (2) and the carrying module (3) are both arranged inside the sealed cabin (4), a portion of the vacuum gauge (16) is arranged inside the sealed cabin (4) to measure the air pressure inside the sealed cabin (4), the sealed cabin (4) is connected to an external vacuum pump, and the control device (200) is electrically connected to the vacuum pump and the vacuum gauge (16); The control device (200) is configured to: after the mold is placed on the carrier module (3), suck the air in the sealed cabin (4) through a vacuum pump according to the air pressure in the cabin, so that the air pressure in the cabin is maintained in a preset air pressure range.

8. The optical element molding control system according to claim 1, wherein: The first heating element (21) includes a first electric heating tube (211), the number of the first electric heating tube (211) is multiple, and the pressing block (24) has a first end surface (241) for contacting the mold; A first number of first electric heating tubes (211) is used as a first electric heating tube group, and a second number of first electric heating tubes (211) is used as a second electric heating tube group, wherein the first number is greater than the second number; Each first electric heating tube (211) in the first electric heating tube group is arranged in a direction parallel to the first end surface (241), and each first electric heating tube (211) in the second electric heating tube group is arranged in a direction parallel to the first end surface (241); In a direction perpendicular to the first end surface (241), the second electric heating tube assembly is closer to the first end surface (241) than the first electric heating tube assembly; The symmetric center of the area occupied by the first electric heating tube group is aligned with the symmetric center of the area occupied by the second electric heating tube group.

9. The optical element molding control system according to claim 1, characterized in that: The second heating element (31) includes a second electric heating tube (311), the number of the second electric heating tube (311) is multiple, and the bearing block (34) has a second end surface (341) for contacting the mold; A third number of second electric heating tubes (311) is used as a third electric heating tube group, and a fourth number of second electric heating tubes (311) is used as a fourth electric heating tube group, wherein the third number is greater than the fourth number; Each second electric heating tube (311) in the third electric heating tube group is arranged in a direction parallel to the second end surface (341), and each second electric heating tube (311) in the fourth electric heating tube group is arranged in a direction parallel to the second end surface (341); In a direction perpendicular to the second end surface (341), the fourth electric heating tube group is closer to the second end surface (341) than the third electric heating tube group; The symmetric center of the area occupied by the third electric heating tube group is aligned with the symmetric center of the area occupied by the fourth electric heating tube group.

10. The optical element molding control system according to claim 1, wherein: The second cooling member (32) includes a liquid nitrogen spray module (322), and the liquid nitrogen spray module (322) has a plurality of nozzles (3221). The plurality of nozzles (3221) are arranged at intervals along the periphery of the supporting block (34).

11. The optical element molding control system according to claim 1, wherein: The driving module (1) includes a motor (12), an electric cylinder (13), a transmission shaft assembly (14) and a support (15), wherein the transmission shaft assembly (14) is integrated with a pressure sensor (11); The electric cylinder (13) is fixed to the support (15), the motor (12) is connected to one end of the transmission shaft group (14) through the electric cylinder (13), and the other end of the transmission shaft group (14) is connected to the pressing block module (2).

Citation Information

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