A precision dispensing apparatus and method for dispensing optical glass drops

Abstract

The application discloses a precision feeding device and method for optical glass drops. It belongs to the technical field of optical glass forming and mainly solves the problems of drop precision drift, non-steady-state material waste and low system intelligence in the prior art. The main features are that a partition plate divides a discharge crucible into two parts only connected at the bottom, a liquid level monitoring unit is used for real-time monitoring of the liquid level height of the glass liquid in the discharge crucible, the collector is provided with a rotating mechanism, the outer wall of the feeding communication pipe and the discharge pipe is provided with an annular heating belt, and the control unit is signal-connected with the liquid level monitoring unit and is configured to automatically adjust the temperature control parameters of the feeding communication pipe and the motion parameters of the extrusion drum according to the real-time data of the liquid level height so as to maintain the liquid level height at a preset value. The application is especially suitable for the automatic batch production of special optical glasses such as high refractive index and low dispersion and can be used for the blank preparation of precision optical devices such as mobile phone lenses, vehicle-mounted cameras, AR / VR optical elements and the like.

Description

Technical Field

[0001] This invention belongs to the field of optical glass forming technology, specifically relating to a precision feeding device and method for optical glass droppers. It is suitable for the mass production of optical preform blanks with high precision and stability requirements, and is especially suitable for the automated dropper forming process of high refractive index, low dispersion, and special environmentally friendly optical glass used in precision optical devices such as mobile phone lenses, automotive cameras, AR / VR optical components, and medical endoscopes, realizing intelligent and precise manufacturing processes. Background Technology

[0002] In the manufacturing chain of optical components, the preparation of glass preforms through drop forming is a crucial upstream process. The weight accuracy, shape consistency, and internal quality of the preform directly determine the yield rate of subsequent molding or cold processing steps and the performance of the final optical component. Existing technologies, such as the drop forming device disclosed in patent CN-16332478A, while achieving basic metering and drop functions, still face the following critical technical bottlenecks in meeting the high-precision and high-efficiency production requirements of today's optical industry: 1. Unstable source control leads to drift in dispensing accuracy: Existing equipment uses open-loop or simple proportional control to maintain a rough balance between inflow and outflow. However, the viscosity of optical glass melt is extremely sensitive to temperature (a 1°C change can lead to a 5%-10% change in viscosity), and factors such as crucible thermal deformation and ambient temperature fluctuations during production cause unavoidable slow changes in the glass melt level within the feeding crucible. This level drift directly alters the initial hydraulic conditions and effective displacement volume of each extrusion drum movement, resulting in a trend deviation in dispensing weight. This deviation is cumulative and periodic, difficult to completely eliminate through operator experience, and becomes a core obstacle limiting further improvements in dispensing accuracy.

[0003] 2. Material waste in unsteady-state processes: During equipment cold start-up and heating, process parameter adjustments, mold changes, temporary shutdowns, or sudden fluctuations in production (such as bubbles or rapid temperature changes), the molten glass flowing from the discharge pipe is often intermittent, dispersed, and irregularly shaped, failing to form qualified droplets. Traditional handling methods either involve discarding the waste or shutting down for cleaning. For special optical glasses doped with rare earth elements (such as lanthanum, yttrium, niobium, and tungsten), precious metals, or requiring complex manufacturing processes, raw material costs are high, and the material loss due to a single adjustment or abnormal shutdown is significant. Furthermore, frequent shutdowns for cleaning severely impact the overall utilization rate of the equipment.

[0004] 3. Low level of automation, difficulty in process inheritance and optimization: Existing equipment relies heavily on the experience of operators for parameter setting and process adjustment, resulting in inconsistent process stability. Production parameters for different batches and grades of glass are difficult to digitally store and accurately reproduce, hindering process standardization and the ability to quickly change over multiple product types.

[0005] Therefore, stabilizing liquid levels, reducing the loss of unsteady materials, and intelligentizing processes are essential to improve product precision and enhance industrial competitiveness. Summary of the Invention

[0006] The purpose of this invention is to address the problems in existing technologies, such as unstable weight due to liquid level drift, material waste in unsteady processes, and insufficient intelligence. It provides an innovative precision optical glass feeding device and method, aiming to achieve fully automatic and closed-loop control of the liquid level, eliminating the impact of liquid level drift on the weight of the drop, so that the standard deviation of the drop weight is controlled within a very small range during continuous production, thereby improving the dropping accuracy. Simultaneously, by setting up an online collection and recycling device for molten glass, all molten glass in abnormal production states can be recycled and reused in the production process, significantly reducing the manufacturing cost of the drop.

[0007] The technical solution of the feeding device of the present invention is: a precision feeding device for optical glass droplets, comprising a discharge crucible, an extrusion drum disposed within the discharge crucible, an inlet connecting pipe and a discharge pipe respectively disposed on opposite sides of the discharge crucible, a partition disposed within the discharge crucible, an aggregator disposed below the discharge pipe, and a control unit, characterized in that: it further comprises a liquid level monitoring unit; the partition divides the discharge crucible into two parts connected only at the bottom, the extrusion drum is located in the discharge crucible on the side of the inlet connecting pipe, and the liquid level monitoring unit is used to monitor the liquid level height of the glass melt in the discharge crucible on the side of the discharge pipe in real time; the aggregator is provided with a rotating mechanism for rotating it to a tilted state and a horizontal state, and the rotating mechanism is signal-connected to the control unit; the outer walls of the inlet connecting pipe and the discharge pipe are respectively provided with annular heating belts and multi-segment temperature control devices, which can control the temperature in different zones; the control unit is signal-connected to the liquid level monitoring unit and is configured to automatically adjust the temperature control parameters of the inlet connecting pipe and the motion parameters of the extrusion drum according to the real-time data of the liquid level height, so as to maintain the liquid level height stable at a preset value.

[0008] The liquid level monitoring unit in the technical solution of the feeding device of the present invention is a high-temperature resistant laser rangefinder, which is set above the discharge crucible, and its installation position is provided with a high-temperature resistant quartz observation window protection structure.

[0009] The method by which the control unit adjusts the temperature control parameters of the feed pipe in the technical solution of the feeding device of the present invention includes: fine-tuning the temperature set value of the feed pipe heater to change the flow rate of the glass melt flowing into the discharge crucible; the control unit adopts PID, fuzzy control or adaptive control algorithm to dynamically output adjustment commands according to the liquid level deviation.

[0010] The method by which the control unit adjusts the motion parameters of the extrusion drum in the technical solution of the feeding device of the present invention includes: fine-tuning the lifting frequency, descent depth or rotation speed of the extrusion drum; the extrusion drum is driven by a servo motor and has high-precision position feedback and torque control capabilities to achieve micro-flow compensation.

[0011] In the technical solution of the feeding device of the present invention, the upper part of the aggregator is an open opening for easy receiving, the lower part is a conical opening for easy guiding and releasing, and the middle part is a cavity that facilitates storage and fusion with a smooth transition and an ultra-smooth inner surface.

[0012] The feed device of the present invention integrates a heating system, a miniature weighing sensor, and a rapid release mechanism in its aggregator; it also includes an infrared temperature detector located above the aggregator for real-time monitoring of the temperature of the molten glass inside the aggregator.

[0013] The technical solution of the feeding device of the present invention also includes a collector; the collector is a crucible with a constant temperature function, which is located on the lower side of the collector.

[0014] In the technical solution of the feeding device of the present invention, the control unit is configured to trigger the aggregator to rotate to the tilting state when the equipment is started, stopped, paused, mold is changed, parameters are calibrated, or an abnormal dripping is detected; the control unit is also connected to the main control system of the production line, supporting remote command triggering and automatic switching of process modes.

[0015] The technical solution of the forming method of the present invention is: a method for forming optical glass droplets, characterized by comprising the following steps: (1) The liquid level monitoring unit collects the liquid level data in the discharge crucible in real time; (2) The control unit compares the real-time liquid level with the preset value. If the deviation exceeds the threshold, the feed temperature or extrusion parameters are adjusted to compensate. (3) During abnormal dripping periods, collect the molten glass for reuse.

[0016] In the technical solution of the molding method of the present invention, the control unit calls and loads corresponding control parameters according to the preset process formula to realize rapid changeover production of multiple types of glass materials.

[0017] The beneficial effects of this invention are: 1. Enhanced precision and stability: Through closed-loop liquid level control, the precision of droplet weight control is improved from ±2% to within ±0.5%, which is significantly better than the existing open-loop system, providing a guarantee for the manufacture of high-precision optical components.

[0018] 2. Improve material utilization: The concentrator transforms the waste start-up and debugging materials in traditional processes into qualified products. Combined with the recycling device, the overall material utilization rate exceeds 99%. For precious rare earth special optical glass, a single production line can save up to one million yuan in raw material costs per year.

[0019] 3. Intelligent and adaptive capabilities: It can automatically adapt to different glass grades, automatically compensate for equipment wear and environmental changes, and reduce reliance on operator skills.

[0020] 4. Improved Production Efficiency: Nearly eliminates debugging waste and downtime for cleaning, increasing overall equipment efficiency by over 20%. The fully digital process package supports rapid changeover, meeting the flexible production needs of multiple varieties and small batches.

[0021] 5. Quality Traceability: The system records key parameters (liquid level, temperature, extrusion parameters, aggregation state, etc.) during the production of each drop of material, enabling product quality traceability and providing data support for process optimization and quality analysis.

[0022] This invention features stable liquid level, reduced loss of unsteady materials, and intelligent process, making it particularly suitable for the automated mass production of special optical glasses with high refractive index and low dispersion. It can also be used for the preparation of blanks for precision optical devices such as mobile phone lenses, automotive cameras, and AR / VR optical components. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the discharge crucible structure of an existing drop ball forming device.

[0024] Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the converging device of the present invention in a transitional state between straight-through and tilted states.

[0026] Figure 4 This is a schematic diagram of the convergence device of the present invention in a tilted state.

[0027] Figure 5 This is a schematic diagram of the convergent in the straight-through state of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1-Discharge crucible; 2-Extrusion drum; 3-Inlet connecting pipe; 4-Discharge pipe; 5-Baffle; 6-Liquid level monitoring unit; 7-Collector; 8-Infrared temperature detector; 9-Glass liquid droplet; 10-Collector. Detailed Implementation

[0029] The present invention will be further described below with reference to the structural diagram.

[0030] like Figures 2 to 5 As shown, an embodiment of a precision feeding device and method for optical glass droplets is disclosed. The feeding device includes a discharge crucible 1, an extrusion drum 2, an inlet connecting pipe 3, a discharge pipe 4, a partition 5, a liquid level monitoring unit 6, a collector 7, an infrared temperature detector 8, a collector 10, and a control unit.

[0031] The discharge crucible 1, made of platinum-rhodium alloy or reinforced platinum, is used to temporarily store high-temperature optical glass melt at 1200℃~1400℃. It features multi-zone independent temperature control, precisely maintaining the cavity temperature within the optimal plastic range of the glass melt (typically 80-100℃ lower than the melting temperature), ensuring fluidity to promote fusion while preventing excessive flow that could cause it to lose its shape. A partition 5 divides the discharge crucible 1 into two interconnected zones, left and right, preventing glass melt stagnation at the bottom and preventing surges caused by the movement of the extrusion drum 2 that could affect control accuracy. Both zones have conical tops with central through-holes. The feed connecting pipe 3 is located on the right side of the discharge crucible 1, connecting to the upstream melting furnace for continuous and stable replenishment of glass melt. The discharge pipe 4 is located on the left side of the discharge crucible 1, used to discharge glass melt from the discharge crucible 1. Both the feed connecting pipe 3 and the discharge pipe 4 have annular heating bands on their outer walls and multi-segment temperature control devices, allowing for zoned temperature control. The extrusion drum 2 is located inside the discharge crucible 1 on the side of the feed connecting pipe 3. Its upper end passes through a top through-hole and is connected to a high-precision servo motor via a ball screw or cam mechanism. The control unit programmably controls the high-precision servo motor to drive the extrusion drum 2 to achieve reciprocating motion, and controls the descent speed, depth, holding time, and upward reset action of the extrusion drum 2, precisely controlling the extrusion volume. The liquid level monitoring unit 6 uses a non-contact high-temperature resistant laser rangefinder based on the laser triangulation principle. It is installed above the left side of the discharge crucible 1, and its installation position is protected by a high-temperature resistant quartz observation window. Its probe extends into the crucible through the top through-hole via the high-temperature resistant quartz glass window, avoiding direct contact with the molten glass vapor. The liquid level is observed through the high-temperature resistant glass window, and the liquid level height signal is collected in real-time and continuously. The signal is transmitted to the control unit via a shielded cable for measurement, real-time monitoring of the molten glass level in the discharge crucible 1 in the left side area, ranging from 0 to 300 mm, with an accuracy of ±0.1 mm. The infrared temperature detector 8 is located above the collector 7, and collects the temperature changes of the molten glass 9 inside the collector in real-time and continuously. The collector 7 is located below the discharge pipe 4. It features a rotating mechanism that allows it to rotate to both tilted and horizontal positions, and this mechanism is connected to the control unit. The collector 7 has an open top for easy receiving, a conical bottom for easy guiding of release, and a smoothly transitioning middle section for storage and fusion. Its inner surface is ultra-smooth, significantly reducing glass melt adhesion. The collector 7 integrates a heating system, a miniature weighing sensor, and a rapid release mechanism to monitor the quality of the collected glass melt in real time, determining whether the target forming weight has been reached. However, this data is only used for internal logic within the collector 7 and does not participate in the closed-loop feedback control of the main feeding system. The collector 7 is equipped with a pneumatic tilting mechanism to ensure that the collected droplets are released completely and cleanly. The collector 10 is a crucible with a constant temperature function, located on the lower side of the collector 7. Once a certain amount has accumulated in the crucible, it is returned to the melting furnace via an external robotic arm or by manual intervention.

[0032] The control unit uses an industrial-grade PLC or embedded industrial computer, running dedicated control software, and has data storage, alarm recording, and Ethernet communication functions. The control unit is signal-connected to the liquid level monitoring unit 6 and is configured to automatically adjust the temperature control parameters of the feed pipe 3 and the motion parameters of the extrusion drum 2 based on real-time liquid level data to maintain the liquid level stable at a preset value. The control unit adjusts the temperature control parameters of the feed pipe 3 by: fine-tuning the temperature setpoint of the heater in the feed pipe 3; temperature changes alter the viscosity of the molten glass inside the pipe, thereby precisely controlling its flow rate into the feeding crucible, thus changing the flow rate of molten glass into the discharge crucible 1. This is the "slow main channel" for regulating the liquid level, used to handle slow disturbances and maintain macroscopic balance; the control unit uses PID, fuzzy control, or adaptive control algorithms to dynamically output adjustment commands based on the liquid level deviation. The control unit adjusts the motion parameters of the extrusion drum 2 in several ways: when the liquid level deviation is large or a rapid response is required, it fine-tunes the servo drive parameters of the extrusion drum 2, such as slightly changing its lifting cycle or reference position, or fine-tuning the lifting frequency, descent depth, or rotation speed of the extrusion drum 2 as a rapid compensation method. The extrusion drum 2 is driven by a servo motor and has high-precision position feedback and torque control capabilities to achieve micro-flow compensation. Through the above closed loop, the liquid level fluctuation in the metering chamber of the feeding crucible 1 is forcibly locked within an extremely narrow range of ±0.5mm, providing completely consistent hydrostatic starting conditions for each stroke of the extrusion drum 7, ensuring the long-term stability of the extruded volume. The control unit is configured to trigger the aggregator 7 to rotate to the tilting state when the equipment starts up, stops, pauses, changes molds, calibrates parameters, or detects abnormal dripping. The control unit is also connected to the main control system of the production line, supporting remote command triggering and automatic switching of process modes.

[0033] The control unit includes a closed-loop control module: the signal from the liquid level monitoring unit 6 is filtered and temperature compensated before being transmitted to the industrial-grade control unit in real time; the control unit adopts a composite control strategy (such as using PID for the main control and introducing temperature change rate for feedforward) to automatically adjust the "temperature flow rate at the feed end" or the "extrusion frequency and depth at the discharge end" to form a multi-variable collaborative closed-loop feedback mechanism, forcing the liquid level to be locked at the set value, thus overcoming the response lag and nonlinearity problems of a single adjustment method.

[0034] The control unit includes a recycling module: the collector 7 has three states; when the control unit receives a shutdown command, process alarm, mold not in position signal, or manual adjustment command, it immediately triggers the rotation mechanism to drive the collector 7 to rotate to the "tilting state," guiding the molten glass flowing out of the discharge pipe 4. The collector 10 has active heat preservation or auxiliary heating functions to maintain the flowability of the molten glass. After recycling, it can be directly returned to the melting furnace, realizing closed-loop reuse.

[0035] During system startup or debugging, the control unit instructs the drive mechanism to rapidly rotate the converger 7 to a tilted position, as shown below. Figure 4 As shown; when the system is running smoothly, convergence 7 is in a pass-through state. Figure 2 As shown; when the system detects unstable incoming materials, it triggers the aggregator 7 to add a transition state—first rotating to the state shown. Figure 2 As shown, the residence time is extended until the molten glass reaches a suitable temperature before rotating it to the desired state. Figure 3 As shown; after the system detects that the incoming material is stable and the operation is smooth, the transition state is triggered and disappears.

[0036] The optical glass drop forming method includes the following steps: (1) The liquid level monitoring unit 6 collects the liquid level data in the discharge crucible 1 in real time; (2) The control unit compares the real-time liquid level with the preset value. If the deviation exceeds the threshold, the feed temperature or extrusion parameters are adjusted to compensate. (3) During abnormal dripping periods, collect the molten glass for reuse.

[0037] Closed-loop control method: (1) During system initialization, set the target liquid level height of the discharge crucible 1 to H0 (e.g., 150 mm) and set the control threshold ΔH = 1 mm; (2) The liquid level monitoring unit 6 collects the current liquid level height Ht in real time with a period of 100ms; (3) The control unit calculates the deviation ΔH = Ht - H0 and outputs the adjustment amount according to the preset PID parameters; (4) If ΔH>Ht - H0, it means that the inflow is greater than the outflow. The control unit will appropriately increase the heating temperature of the feed connecting pipe 3 (to reduce viscosity and accelerate flow), and at the same time / or appropriately increase the descent frequency of the extrusion drum 2 to increase the discharge. (5) If ΔH < - (Ht - H0) (liquid level is too low), then reduce the feed temperature or slow down the extrusion frequency and reduce the discharge, and wait for the liquid level to rise; (6) During the dynamic adjustment process, the system prioritizes adjusting the feed temperature because its effect is more stable; when the deviation is large, the extrusion drum 2 fine adjustment is introduced as a fast response means to achieve "coarse adjustment + fine adjustment" composite control. (7) Through the above-mentioned coordinated adjustment, ΔH is always maintained within the range of ±0.5mm, thereby ensuring that the liquid level is consistent each time the extrusion drum moves, the volume fluctuation of the extrusion is less than 0.2%, and the weight of the dripping material is highly stable.

[0038] Recycling methods: Combination Figures 3 to 5 During normal production, the aggregator 7 is rotated to... Figure 5In this state, the glass melt collection crucible is idle, the outlet of the discharge pipe 4 and the outlet of the collector 7 are on the same vertical line, and the glass melt can drip into the rotating receiving tray or mold below through the outlet of the collector.

[0039] When the equipment needs to be stopped, mold changed for debugging, or the control system detects an alarm indicating that the dripping weight is out of tolerance: (1) The control unit immediately pauses the operation of the extrusion drum 2 and issues a command for the aggregator 7 to rotate to Figure 4 Once the status is reached, it is confirmed by the limit switch; (2) At this time, if it is necessary to empty the discharge crucible 1 or handle the abnormality, a small amount of discharge can be started manually or automatically. The high temperature glass liquid (about 1400°C) falls directly into the collector 10 through the collector 7. (3) The heating system of collector 10 works continuously to prevent the glass melt from cooling and solidifying, and the heat preservation time can reach more than 30 minutes; (4) After debugging is completed or the fault is eliminated, the control unit commands to resume production; or after the batch ends, the robot arm holds the collector 10 to pour the molten glass into the melting furnace for recycling. (5) In a fully automated production line, the glass melt in collector 10 can be directly sent back to the melting furnace for reuse.

[0040] When the infrared temperature detector 8 detects that the temperature of the molten glass 9 is too low or too high, it triggers the collector 7 to increase the transition state, first rotating to... Figure 3 In this state, the collector 7 adjusts the heating power to bring the temperature of the molten glass 9 to the set temperature, and then rotates to... Figure 5 In this state, material is then supplied to the dripping mold.

[0041] Application Scenarios: This invention is particularly suitable for the precision dispensing production of high-refractive-index (nd>1.8) low-melting-point glass, high Abbe number glass, or special environmentally friendly lead-free glass. These types of glass have high raw material costs and stringent requirements for process stability. The system has been successfully applied to the D-ZLaF5* optical component manufacturing line, increasing the dispensing weight CPK value from 1.0 to 1.67, reducing debugging waste by 92%, and saving over 400,000 yuan in raw material costs annually. Simultaneously, the system supports integration with the factory's MES system, enabling real-time uploading of production data and generation of process optimization suggestions, providing a data foundation for intelligent manufacturing.

[0042] The control unit calls and loads corresponding control parameters according to the preset process formula to realize rapid changeover production of multiple types of glass materials.

[0043] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present invention should still fall within the scope of the patent of the present invention.

Claims

1. A precision feeding device for optical glass droplets, comprising a discharge crucible (1), an extrusion drum (2) disposed within the discharge crucible (1), an inlet connecting pipe (3) and a discharge pipe (4) respectively disposed on opposite sides of the discharge crucible (1), a partition (5) disposed within the discharge crucible (1), an aggregator (7) disposed below the discharge pipe (4), and a control unit, characterized in that: It also includes a liquid level monitoring unit (6); the partition (5) divides the discharge crucible (1) into two parts that are connected only at the bottom, the extrusion drum (2) is located in the discharge crucible (1) on the side of the feed connecting pipe (3), and the liquid level monitoring unit (6) is used to monitor the liquid level height of the glass liquid in the discharge crucible (1) on the side of the discharge pipe (4) in real time; the collector (7) is provided with a rotating mechanism to rotate it to a tilted state and a horizontal state, and the rotating mechanism is connected to the control unit by signal; the outer walls of the feed connecting pipe (3) and the discharge pipe (4) are respectively provided with annular heating belts and multi-segment temperature control devices, which can control the temperature in different zones; the control unit is connected to the liquid level monitoring unit (6) by signal and is configured to automatically adjust the temperature control parameters of the feed connecting pipe (3) and the motion parameters of the extrusion drum (2) according to the real-time data of the liquid level height, so as to maintain the liquid level height stable at the preset value.

2. The precision feeding device for optical glass droplets according to claim 1, characterized in that: The liquid level monitoring unit (6) is a high-temperature resistant laser rangefinder, which is set above the discharge crucible (1), and its installation position is equipped with a high-temperature resistant quartz observation window protection structure.

3. The precision feeding device for optical glass droplets according to claim 1 or 2, characterized in that: The control unit adjusts the temperature control parameters of the feed pipe (3) by: fine-tuning the temperature setting value of the heater of the feed pipe (3) to change the flow rate of the glass liquid flowing into the discharge crucible; the control unit adopts PID, fuzzy control or adaptive control algorithm to dynamically output adjustment commands according to the liquid level deviation.

4. The precision feeding device for optical glass droplets according to claim 3, characterized in that: The control unit adjusts the motion parameters of the extrusion drum (2) by fine-tuning the lifting frequency, descent depth or rotation speed of the extrusion drum (2); the extrusion drum (2) is driven by a servo motor and has high-precision position feedback and torque control capabilities to achieve micro-flow compensation.

5. A precision feeding device for optical glass droplets according to any one of claims 1-2 and 4, characterized in that: The aggregator (7) has an open top for easy reception, a tapered bottom for easy guidance and release, and a smooth transition between the middle and middle sections for easy storage and fusion. The inner surface is treated with an ultra-smooth finish.

6. The precision feeding device for optical glass droplets according to claim 5, characterized in that: The collector (7) integrates a heating system, a miniature weighing sensor and a rapid release mechanism; it also includes an infrared temperature detector (8) located above the collector (7) for real-time monitoring of the temperature of the molten glass inside the collector (7).

7. A precision feeding device for optical glass droplets according to any one of claims 1-2, 4, and 6, characterized in that: It also includes a collector (10); the collector (10) is a crucible with a constant temperature function, which is located on the lower side of the collector (7).

8. A precision feeding device and method for optical glass droplets according to any one of claims 1-2, 4, and 6, characterized in that: The control unit is configured to trigger the aggregator (7) to rotate to the tilting state when the equipment is started, stopped, paused, mold is replaced, parameters are calibrated, or an abnormal dripping is detected; the control unit is also connected to the main control system of the production line and supports remote command triggering and automatic switching of process mode.

9. A method for forming optical glass droplets using a precision feeding device for optical glass droplets according to any one of claims 1-8, characterized in that: Includes the following steps: (1) The liquid level monitoring unit (6) collects the liquid level data in the discharge crucible (1) in real time; (2) The control unit compares the real-time liquid level with the preset value. If the deviation exceeds the threshold, the feed temperature or extrusion parameters are adjusted to compensate. (3) During abnormal dripping periods, collect the molten glass for reuse.

10. The optical glass drop forming method according to claim 9, characterized in that: The control unit calls and loads corresponding control parameters according to the preset process formula to realize rapid changeover production of multiple types of glass materials.

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