Injection molding processing equipment and method for lens base
The collaborative automated production process of the lens base injection molding equipment has solved the problems of low efficiency and poor precision in lens base injection molding production, and has achieved efficient and non-destructive sprue separation and product tray placement, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-08
- Publication Date
- 2026-03-13
AI Technical Summary
The existing injection molding production of lens mounts suffers from problems such as low production efficiency, high labor intensity, poor product consistency, burrs, stress damage or dimensional deviations caused by manual cutting of sprue, mismatched cycle time of automated equipment, and product deformation and difficulty in ensuring positioning accuracy caused by mechanical stamping.
The lens base injection molding equipment includes an injection molding machine, a receiving assembly, a material transfer assembly, an ultrasonic dewatering nozzle assembly, an alternating transfer assembly, and a material handling tray assembly. Through the coordinated operation of the injection molding robot, the XYZ transmission module, the ultrasonic dewatering nozzle die head, and the alternating transfer assembly, an automated production process is achieved. The ultrasonic dewatering nozzle technology is used for non-destructive separation of the sprue, and the alternating transfer assembly is used for parallel operation.
It improves production efficiency and product yield, reduces equipment downtime, ensures product precision and consistency, avoids deformation and damage caused by traditional mechanical stamping, and achieves highly efficient automated production.
Smart Images
Figure CN121650182A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of lens mount manufacturing technology, and in particular to a lens mount injection molding equipment and method. Background Technology
[0002] In the injection molding production of optical lens mounts, the product is usually molded together with the gating system (sprue), requiring multiple post-processing steps such as sprue removal, transfer, and tray placement. Currently, these processes are mostly completed manually or with scattered semi-automated equipment, resulting in low production efficiency, high labor intensity, and poor product consistency. Manually removing the sprue can easily produce burrs, stress damage, or dimensional deviations, directly affecting the assembly accuracy and optical performance of the lens barrel.
[0003] Existing automated demolding and tray-stacking equipment mostly employs a fixed-station sequential operation, such as completing material picking, desinking, and tray placement at a single location. This model leads to a mismatch between the cycle time of the injection molding machine and post-processing equipment. The robotic arm often needs to wait for the material to arrive, resulting in idle equipment and creating a production bottleneck. Furthermore, traditional mechanical stamping or cutting methods are prone to product deformation, microcracks, or surface scratches due to impact, and positioning accuracy is difficult to guarantee, affecting the accuracy and yield of subsequent automated tray placement. Summary of the Invention
[0004] To address the aforementioned issues, this invention maximizes production efficiency and optimizes human resources, and is particularly suitable for lens mount injection molding equipment in the field of mass production of lens mounts where strict requirements for cleanliness, precision, and production efficiency are required.
[0005] The technical solution adopted in this invention is: a lens base injection molding processing device, including an injection molding machine, a receiving assembly, a material transfer assembly, an ultrasonic dehydration port assembly, an alternating transfer assembly, and a material handling tray assembly. The injection molding machine is equipped with an injection molding robot, which is used to grab and transfer the injection-molded product to the receiving assembly. The receiving assembly is used to receive and position the product. The material transfer assembly is used to grab and transfer the product to the ultrasonic dehydration port assembly. The ultrasonic dehydration port assembly is used to dehydrate the product and cause the product after dehydration to fall onto the alternating transfer assembly. The alternating transfer assembly transfers the product to the material handling tray assembly. The material handling tray assembly is used to grab the product from the alternating transfer assembly and arrange it on a tray.
[0006] A further improvement to the above solution is that the injection molding machine includes a frame, an injection driving module, an injection fixing module, and an injection mold. The injection driving module and the injection fixing module are respectively disposed on both sides of the frame, and the injection mold is respectively disposed on the injection driving module and the injection fixing module. The injection driving module is used to drive the injection mold to move toward the injection fixing module to close the injection mold.
[0007] A further improvement to the above solution is that the injection molding robot includes an XYZ transmission module and an injection gripper. The XYZ transmission module is mounted on the frame, and the injection gripper is mounted on the XYZ transmission module. The XYZ transmission module is used to drive the injection gripper to reciprocate between the injection mold and the receiving assembly.
[0008] A further improvement to the above solution is that the receiving component is provided with a receiving fixture, a receiving mounting frame, and a receiving lifting module. The receiving component includes a receiving mounting frame and a receiving lifting module. The receiving mounting frame is used for fixed installation of the receiving lifting module. The receiving fixture is set on the receiving lifting module. The receiving lifting module is used to drive the receiving fixture to lift and lower, so as to receive the material supplied by the picking robot and then lower it to a specified height to facilitate the picking and transfer of material by the picking and transfer component.
[0009] A further improvement to the above scheme is that a waste recycling component is provided on one side of the receiving component. The waste recycling component includes a sprue guide plate, which is located on one side of the receiving component. A receiving bucket is provided at the bottom of the sprue guide plate for receiving waste.
[0010] A further improvement to the above solution is that the material handling and transfer assembly includes a material handling bracket, a material handling rotation module, a gripping drive module, and a transfer gripper. The material handling bracket is used to fix the material handling rotation module, and the material handling rotation module is used to drive the gripping drive module to rotate, so as to drive the transfer gripper to move between the receiving assembly, the waste recycling assembly, and the material discharging and positioning assembly.
[0011] A further improvement to the above solution is that the ultrasonic dehydration port assembly includes a dehydration port positioning frame and a dehydration port driving module. The dehydration port driving module is located above the dehydration port positioning frame. The dehydration port positioning frame is used for product positioning, and the dehydration port driving module is used to dehydrate the product on the dehydration port positioning frame.
[0012] A further improvement to the above solution is that the dehydration port positioning frame is provided with a dehydration port positioning groove and a lens base guide groove. The dehydration port positioning groove is used for positioning the lens base frame, and the lens base guide groove is used for positioning and guiding the lens base after the dehydration port is removed.
[0013] A further improvement to the above solution is that the dewatering port driving module includes a fixed bracket, a driving base, and a dewatering port mold head. The driving base is mounted on the fixed bracket, and the dewatering port mold head is mounted on the driving base. The dewatering port mold head is an ultrasonic dewatering port mold head. The driving base is used to drive the dewatering port mold head to move toward the dewatering port positioning frame to dewater the lens base.
[0014] A further improvement to the above solution is that the alternating transfer component includes a rotary drive module and an alternating turntable, the alternating turntable being provided with at least two alternating fixed stations, the fixed stations being used for product positioning after the dewatering outlet; the material handling and tray placement component includes a tray placement robot and a tray positioning module, the tray placement robot being used to grab products at the fixed stations and transfer them to the tray positioning module for tray placement.
[0015] A method for injection molding a lens mount, using lens mount injection molding equipment, the method comprising the following steps: Step S100, Injection Molding and Material Removal: Control the injection driving module of the injection molding machine to drive the injection mold to close and perform injection molding; after molding, open the mold, control the XYZ transmission module of the injection robot to drive the injection gripper to move to the mold cavity, grab the lens base product with the sprue, and transfer it to the receiving fixture of the receiving component. Step S200, receiving and pre-transfer: The receiving lifting module drives the receiving fixture carrying the product to rise, so as to receive the product from the injection molding robot; then, the receiving lifting module drives the receiving fixture to fall to a predetermined height, providing accurate positioning for the gripping operation of the material transfer component; Step S300, Product Transfer and Sprue Separation: The material handling rotation module of the material handling and transfer assembly drives the transfer gripper to rotate above the receiving fixture, and the gripping drive module drives the transfer gripper to descend and grip the product; subsequently, the material handling rotation module rotates to transfer the product and accurately place it in the dewatering positioning groove of the dewatering positioning frame of the ultrasonic dewatering outlet assembly; the drive seat of the dewatering outlet drive module drives the ultrasonic dewatering outlet head to descend, applying ultrasonic vibration to the product, causing the sprue and lens base to melt and separate at the connection point; the separated sprue is guided by the sprue guide plate to fall into the receiving bucket, completing the waste recycling; Step S400, Product transfer and buffering after dehydration: The lens base product after dehydration falls into the lens base guide groove of the dehydration positioning frame, and slides down through the guide groove or is guided by the auxiliary mechanism to the currently idle fixed position of the alternating turntable of the alternating transfer component; the rotation drive module drives the alternating turntable to rotate, rotating the position carrying the product to the working area of the material picking and placing component, while rotating another idle position to the receiving position, ready to receive the next product; Step S500, Product placement: The placement robot of the material handling and placement assembly moves to the fixed position above the alternating turntable and picks up the lens base product that has completed the dehydration process; then, the placement robot transfers the product to the material tray positioned on the material tray positioning module and places it precisely according to the preset pattern. Step S600, cyclic production: Repeat steps S100 to S500 until the preset production quantity is completed; wherein, the injection cycle of the injection molding machine, the robot arm action, the dewatering process and the tray movement are optimized and synchronized by the control system to achieve continuous automated production.
[0016] In step S100, after the injection molding robot grabs the product, its movement path is programmed and controlled during the transfer to the receiving fixture to avoid obstacles inside the equipment, and when placing the product, it ensures that the initial posture of the product on the receiving fixture is consistent with the required posture of the dewatering outlet positioning groove.
[0017] In step S300, the working parameters of the ultrasonic dewatering nozzle are set according to the material properties of the lens base, including ultrasonic frequency, amplitude and action time; during the dewatering process, the downward pressure applied by the dewatering nozzle drive module to the dewatering nozzle is controlled within a set range to ensure effective separation of the nozzle while avoiding damage to the lens base body.
[0018] In step S400, the rotation of the alternating turntable is coordinated with the dewatering action of the ultrasonic dewatering port assembly and the material handling action of the material handling and tray assembly in terms of timing. After the dewatering port assembly completes the dewatering of a product and places it into a fixed station, the alternating turntable rotates a certain angle (e.g., 180°, corresponding to two stations) so that the station enters the tray handling and material handling station, while the other empty station enters the product receiving station, thereby realizing the parallel operation of the dewatering and tray handling processes.
[0019] In step S500, the tray-positioning robot is equipped with a vision positioning system or a precise point-to-point control program to ensure accurate positioning when grasping products and that the accuracy of placing the products into the designated acupoints in the tray meets the requirements; the tray positioning module can automatically switch or index trays after a single tray is full.
[0020] The beneficial effects of this invention are: Compared to existing lens mount manufacturing methods, this invention utilizes the coordinated operation of an injection molding robot, a receiving assembly, a material handling and transfer assembly, an ultrasonic dehydration assembly, an alternating transfer assembly, and a material handling and tray assembly to form a complete closed-loop production chain from injection molding, precision receiving, automatic transfer, non-destructive dehydration, to intelligent tray placement. The ultrasonic dehydration technology achieves sprue separation at the molecular level through high-frequency mechanical vibration, resulting in a smooth, burr-free separation surface and avoiding product deformation, microcracks, or surface damage that can occur with traditional mechanical stamping. Simultaneously, the introduction of the alternating transfer assembly eliminates waiting time at single workstations, allowing products to quickly and orderly enter the next process after dehydration, improving product yield and quality consistency. The application of the alternating transfer assembly enables simultaneous loading / unloading and dehydration processes, minimizing equipment downtime. The material handling and tray assembly achieves precise and efficient automated tray placement through a preset program, significantly optimizing production cycle time and greatly increasing single-machine capacity compared to manual operation. This invention maximizes production efficiency and optimizes human resources while ensuring product precision and quality. It is particularly suitable for mass production of lens mounts where there are stringent requirements for cleanliness, precision, and production efficiency.
[0021] The lens mount injection molding method constructs a complete closed-loop automated production process from injection molding, automatic material handling, precision receiving, sprue separation, buffer transfer, and final automatic tray placement by controlling the coordinated operation of the injection molding robot, material handling and transfer components, ultrasonic dewatering components, alternating transfer components, and material handling and tray placement components. This method greatly reduces manual intervention, lowers reliance on operator skills, and effectively improves the intelligence level and stability of the production process. Through the optimization and synchronous control of the timing between each process, especially by introducing the alternating transfer components as a buffer, the three processes—injection molding, ultrasonic dewatering, and product tray placement—which might otherwise have different cycle times, can operate in parallel. This eliminates waiting time between processes, solves production bottlenecks, minimizes equipment idle time, and thus significantly optimizes the cycle time of the entire production line, greatly increasing the single-machine capacity. The ultrasonic dewatering technology utilizes high-frequency vibration energy to separate the sprue from the product at the molecular level. The separation surface is smooth and flat, without burrs or stress damage, avoiding product deformation, hidden cracks, or surface scratches that may occur with traditional mechanical stamping methods. By combining precise positioning at each stage (such as the lifting and positioning of the receiving fixture, the precise positioning of the dewatering outlet positioning slot, and the precise gripping and placement by the robotic arm), the dimensional accuracy and appearance quality of the final product are ensured, resulting in a high yield rate and good product consistency. The rotational movement of the material handling and transfer components achieves efficient space utilization and short-path transfer. The waste recycling component is seamlessly integrated with the main process, enabling automatic collection and cleaning of sprue waste, maintaining a clean working environment. This invention maximizes production efficiency, optimizes labor costs, and enhances the intelligence and reliability of the production process, making it particularly suitable for mass production of lens mounts where extremely high cleanliness, precision, and production efficiency are required. Attached Figure Description
[0022] Figure 1 This is a three-dimensional schematic diagram of the lens mount injection molding equipment of the present invention; Figure 2 for Figure 1 A three-dimensional schematic diagram of the injection molding equipment for the lens base from another perspective; Figure 3 for Figure 1 A three-dimensional schematic diagram of the injection molding equipment for the lens base from another perspective; Figure 4 for Figure 1 A three-dimensional schematic diagram of a portion of the injection molding equipment for the lens base; Figure 5 for Figure 1 A three-dimensional schematic diagram of a portion of the injection molding equipment for the lens base; Figure 6 This is a schematic flowchart of the lens mount injection molding method of the present invention.
[0023] Explanation of reference numerals in the attached drawings: Injection molding machine 1, frame 11, injection driving module 12, injection fixing module 13, injection mold 14, receiving assembly 2, receiving jig 21, receiving mounting bracket 22, receiving lifting module 23, waste recycling assembly 24, sprue guide plate 241, receiving bucket 242, material handling and transfer assembly 3, material handling bracket 31, material handling rotation module 32, gripping driving module 33, transfer gripper 34, ultrasonic dewatering port assembly 4. Dehydration port positioning frame 41, dehydration port positioning groove 411, lens base guide groove 412, dehydration port drive module 42, fixed bracket 421, drive seat 422, dehydration port mold head 423, alternating transfer assembly 5, rotary drive module 51, alternating turntable 52, fixed station 521, material picking and placing assembly 6, placing robot 61, material tray positioning module 62, injection molding robot 7, XYZ transmission module 71, injection molding gripper 72. Detailed Implementation
[0024] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.
[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Figures 1-5As shown, in one embodiment of the present invention, a lens base injection molding processing device is provided, including an injection molding machine 1, a receiving assembly 2, a material transfer assembly 3, an ultrasonic dehydration port assembly 4, an alternating transfer assembly 5, and a material handling tray assembly 6. The injection molding machine 1 is equipped with an injection molding robot 7, which is used to grasp and transfer the injection-molded product to the receiving assembly 2. The receiving assembly 2 is used to receive and position the product. The material transfer assembly 3 is used to grasp and transfer the product to the ultrasonic dehydration port assembly 4. The ultrasonic dehydration port assembly 4 is used to dehydrate the product, causing the product after dehydration to fall onto the alternating transfer assembly 5. The alternating transfer assembly 5 transfers the product to the material handling tray assembly 6, and the material handling tray assembly 6 is used to grasp the product from the alternating transfer assembly 5 and arrange it on a tray. This embodiment utilizes the coordinated operation of the injection molding robot 7, the receiving assembly 2, the material handling and transfer assembly 3, the ultrasonic dewatering assembly 4, the alternating transfer assembly 5, and the material handling and tray assembly 6 to form a complete closed-loop production chain from injection molding, precision receiving, automatic transfer, non-destructive dewatering, to intelligent tray placement. The ultrasonic dewatering technology achieves sprue separation at the molecular level through high-frequency mechanical vibration, resulting in a smooth, burr-free separation surface and avoiding product deformation, microcracks, or surface damage that can occur with traditional mechanical stamping. Simultaneously, the introduction of the alternating transfer assembly 5 eliminates waiting time at single workstations, allowing products to quickly and orderly enter the next process after dewatering, improving product yield and quality consistency. The application of the alternating transfer assembly 5 enables simultaneous loading / unloading and dewatering processes, minimizing equipment downtime. The material handling and tray assembly 6 achieves precise and efficient automated tray placement through a preset program, significantly optimizing the production cycle and greatly increasing single-machine capacity compared to manual operation. This embodiment maximizes production efficiency and optimizes human resources while ensuring product precision and quality, making it particularly suitable for mass production of lens mounts where strict requirements for cleanliness, precision, and production efficiency are required.
[0027] Injection molding machine 1 includes a frame 11, an injection driving module 12, an injection fixing module 13, and an injection mold 14. The injection driving module 12 and the injection fixing module 13 are respectively disposed on both sides of the frame 11. The injection mold 14 is disposed on both the injection driving module 12 and the injection fixing module 13. The injection driving module 12 drives the injection mold 14 to move towards the injection fixing module 13 to close the injection mold 14. This embodiment optimizes the mechanical structure of the injection molding machine 1 to construct a high-rigidity and high-stability molding platform. Specifically, the injection driving module 12 and the injection fixing module 13 are respectively disposed on both sides of the frame 11, forming a symmetrical force-bearing structure, effectively dispersing the huge stress during the mold closing process, and improving the stability and lifespan of the equipment operation. The injection mold 14 is disposed on the driving module and the fixing module, and the driving module precisely controls the moving side mold to complete the mold closing and opening actions.
[0028] The injection molding robot 7 includes an XYZ drive module 71 and an injection gripper 72. The XYZ drive module 71 is mounted on the frame 11, and the injection gripper 72 is mounted on the XYZ drive module 71. The XYZ drive module 71 drives the injection gripper 72 to reciprocate between the injection mold 14 and the receiving assembly 2. This embodiment uses a combination of the XYZ drive module 71 and the injection gripper 72 to achieve fully automated, high-precision material transfer from the mold cavity to the receiving assembly 2. The XYZ three-axis linear motion module constitutes a Cartesian coordinate robot with precise and controllable motion trajectory, enabling it to complete the material handling actions with the shortest path and fastest speed, directly optimizing the injection molding cycle. This robot is mounted on the frame 11, has a compact structure, and does not occupy additional floor space.
[0029] The receiving assembly 2 includes a receiving fixture 21, a receiving mounting frame 22, and a receiving lifting module 23. The receiving assembly 2 comprises the receiving mounting frame 22 and the receiving lifting module 23. The receiving mounting frame 22 is used to fix the receiving lifting module 23. The receiving fixture 21 is mounted on the receiving lifting module 23, and the receiving lifting module 23 drives the receiving fixture 21 to rise and fall, receiving the material supplied by the injection molding robot and then lowering it to a designated height for the material transfer assembly 3 to pick up and transfer the material. In this embodiment, the receiving assembly 2 has been functionally refined by introducing the receiving lifting module 23, giving it intelligent height adjustment capabilities. When the injection molding robot 7 arrives with the finished product, the lifting module can drive the receiving fixture 21 to rise to a preset height, actively welcoming and accurately receiving the injection-molded product, ensuring the stability and reliability of the transfer process. After successful receiving, the module can drive the fixture to fall to a fixed height optimized specifically for the material transfer assembly 3.
[0030] A waste recycling component 24 is provided on one side of the receiving component 2. The waste recycling component 24 includes a sprue guide plate 241, which is disposed on one side of the receiving component 2. A receiving bin 242 is provided at the bottom of the sprue guide plate 241 for receiving waste. This embodiment clarifies the adjacent layout of the waste recycling component 24 and the receiving component 2. By placing the sprue guide plate 241 on one side of the receiving component 2, the sprue waste separated at the ultrasonic dewatering station can be guided to the recycling area via the shortest path. The receiving bin 242 at the bottom enables centralized collection of waste.
[0031] The material handling and transfer assembly 3 includes a material handling bracket 31, a material handling rotation module 32, a gripping drive module 33, and a transfer gripper 34. The material handling bracket 31 is used to fix the material handling rotation module 32, which drives the gripping drive module 33 to rotate, thereby moving the transfer gripper 34 between the receiving assembly 2, the waste recycling assembly 24, and the discharge positioning assembly. This embodiment clarifies the core function of the material handling and transfer assembly 3: as a material flow hub, it performs precise material transfer tasks between multiple key workstations such as receiving, waste recycling, and discharge positioning. A single component enables complex multi-point to multi-point material scheduling, greatly simplifying the system structure. The material handling rotation module 32 provides efficient rotational motion, covering a large operating range, while the gripping drive module 33 and the transfer gripper 34 are responsible for precise gripping and release.
[0032] The ultrasonic dehydration port assembly 4 includes a dehydration port positioning frame 41 and a dehydration port driving module 42. The dehydration port driving module 42 is located above the dehydration port positioning frame 41. The dehydration port positioning frame 41 is used for product positioning, and the dehydration port driving module 42 is used to dehydrate the product on the dehydration port positioning frame 41. This embodiment specifies the structure of the ultrasonic dehydration port assembly 4, and its beneficial effects lie in the functional decoupling and space optimization of the separation station. Positioning the dehydration port driving module 42 above the dehydration port positioning frame 41 forms a stable "upper pressure, lower support" force-bearing structure, ensuring a smooth separation process and accurate product positioning.
[0033] The dehydration port positioning frame 41 is equipped with a dehydration port positioning groove 411 and a lens base guide groove 412. The dehydration port positioning groove 411 is used for positioning the lens base frame, and the lens base guide groove 412 is used for positioning and guiding the lens base after dehydration. In this embodiment, the key functional surfaces of the dehydration port positioning frame 41 have been optimized, and the dehydration port positioning groove 411 and the lens base guide groove 412 have been set. The dehydration port positioning groove 411 is used to perform final precise positioning and clamping of the lens base frame before dehydration, ensuring that its position remains stable when subjected to ultrasonic vibration and separation force. The lens base guide groove 412 is a key structure after the dehydration action occurs. It is precision machined to match the contour of the lens base. After the dehydration port mold head completes separation, the guide groove can immediately receive and guide the falling lens base, allowing it to slide onto the alternating transfer assembly 5 in a controllable and consistent posture.
[0034] The dewatering nozzle driving module 42 includes a fixed bracket 421, a driving base 422, and a dewatering nozzle head 423. The driving base 422 is mounted on the fixed bracket 421, and the dewatering nozzle head 423 is mounted on the driving base 422. The dewatering nozzle head 423 is an ultrasonic dewatering nozzle head 423. The driving base 422 is used to drive the dewatering nozzle head 423 to move towards the dewatering nozzle positioning frame 41 to dewater the lens base. In this embodiment, the dewatering nozzle driving module 42 is specifically designed to use an ultrasonic dewatering nozzle head 423. The ultrasonic dewatering nozzle technology converts high-frequency electrical signals into mechanical vibrations through a transducer and transmits them to the dewatering nozzle head 423, causing it to generate high-frequency micro-amplitude vibrations. When this head acts on the connection point (sprue) between the lens base and the nozzle support, the vibration energy is highly concentrated in this tiny area. Through intermolecular friction, heat is generated, instantly softening or melting the plastic, thus achieving clean and efficient separation with minimal vertical pressure.
[0035] The alternating transfer component 5 includes a rotary drive module 51 and an alternating turntable 52. The alternating turntable 52 has at least two alternating fixed stations 521, which are used for product positioning after the dewatering outlet. The material handling and tray-loading component 6 includes a tray-loading robot 61 and a tray positioning module 62. The tray-loading robot 61 is used to grab products at the fixed stations 521 and transfer them to the tray positioning module 62 for tray loading. This embodiment cleverly solves the cycle time matching and buffering problem between the dewatering outlet and tray loading processes through the collaborative design of the alternating transfer component 5 and the material handling and tray-loading component 6. The at least two fixed stations 521 on the alternating turntable 52 allow one station to simultaneously handle product receiving and positioning while the other station simultaneously handles tray loading and unloading, achieving parallel operation and eliminating waiting time between processes, which is key to improving the overall line efficiency.
[0036] like Figures 1-6 As shown, a lens mount injection molding method is used, employing lens mount injection molding equipment. The method includes the following steps: Step S100, Injection Molding and Material Removal: The injection driving module 12 of the injection molding machine 1 is controlled to drive the injection mold 14 to close and perform injection molding; after molding, the mold is opened, and the XYZ transmission module 71 of the injection manipulator 7 is controlled to drive the injection gripper 72 to move to the mold cavity, grip the lens base product with the sprue, and transfer it to the receiving fixture 21 of the receiving assembly 2; Step S200, receiving and preparing for transfer: The receiving lifting module 23 drives the receiving fixture 21 carrying the product to rise, so as to receive the product from the injection molding robot 7; then, the receiving lifting module 23 drives the receiving fixture 21 to descend to a predetermined height, so as to provide accurate positioning for the gripping operation of the material transfer component 3. Step S300, Product Transfer and Sprue Separation: The material handling rotation module 32 of the material handling and transfer assembly 3 drives the transfer gripper 34 to rotate above the receiving fixture 21, and the gripping drive module 33 drives the transfer gripper 34 to descend and grip the product; subsequently, the material handling rotation module 32 rotates to transfer the product and accurately place it in the dehydration port positioning groove 411 of the dehydration port positioning frame 41 of the ultrasonic dehydration port assembly 4; the drive seat 422 of the dehydration port drive module 42 drives the ultrasonic dehydration port mold head 423 to descend, applying ultrasonic vibration to the product, causing the sprue and lens base to melt and separate at the connection point; the separated sprue is guided by the sprue guide plate 241 into the receiving bucket 242, completing the waste recycling; Step S400, Product Transfer and Buffering after Dehydration: The lens base product after dehydration falls into the lens base guide groove 412 of the dehydration positioning frame 41, and slides down through the guide groove or is guided by an auxiliary mechanism to the currently idle fixed station 521 of the alternating turntable 52 of the alternating transfer assembly 5; the rotation drive module 51 drives the alternating turntable 52 to rotate, rotating the station carrying the product to the working area of the material picking and placing assembly 6, and at the same time rotating another idle station to the receiving position, ready to receive the next product; Step S500, Product placement: The placement robot 61 of the material handling and placement assembly 6 moves to the fixed station 521 of the alternating turntable 52 and picks up the lens base product that has completed the dehydration process; then, the placement robot 61 transfers the product to the material tray positioned on the material tray positioning module 62 and places it precisely according to the preset pattern. Step S600, cyclic production: Repeat steps S100 to S500 until the preset production quantity is completed; wherein, the injection cycle, robot arm action, dewatering process and tray movement of the injection molding machine 1 are optimized and synchronized by the control system to achieve continuous automated production.
[0037] This embodiment constructs a complete closed-loop automated production process from injection molding, automatic material handling, precision receiving, sprue separation, buffer transfer, and final automatic tray placement by controlling the coordinated operation of the injection molding robot 7, the material handling and transfer component 3, the ultrasonic dewatering component 4, the alternating transfer component 5, and the material handling and tray placement component 6. This method greatly reduces manual intervention, lowers the reliance on operator skills, and effectively improves the intelligence level and stability of the production process. Through the optimization and synchronous control of the timing between each process, especially by introducing the alternating transfer component 5 as a buffer, the three processes—injection molding, ultrasonic dewatering, and product tray placement—which might otherwise have different cycle times, can operate in parallel. This eliminates waiting time between processes, solves production bottlenecks, minimizes equipment idle time, and thus significantly optimizes the cycle time of the entire production line, greatly increasing the single-machine capacity. The ultrasonic dewatering technology uses high-frequency vibration energy to separate the sprue from the product at the molecular level. The separation surface is smooth and flat, without burrs or stress damage, avoiding product deformation, hidden cracks, or surface scratches that may occur with traditional mechanical stamping methods. By combining precise positioning at each stage (such as the lifting and positioning of the receiving fixture 21, the precise positioning of the dewatering outlet positioning groove 411, and the precise gripping and placement of the tray-mounting robot 61), the dimensional accuracy and appearance quality of the final product are ensured, resulting in a high yield rate and good product consistency. The rotational movement of the material handling and transfer component 3 achieves efficient space utilization and short-path transfer. The waste recycling component 24 is seamlessly integrated with the main process, enabling automatic collection and cleaning of sprue waste, maintaining a clean working environment. This embodiment maximizes production efficiency, optimizes labor costs, and enhances the intelligence and reliability of the production process, making it particularly suitable for mass production of lens mounts where extremely high cleanliness, precision, and production efficiency are required.
[0038] In step S100, after the injection molding robot 7 grasps the product, its movement path is programmed and controlled during the transfer to the receiving fixture 21 to avoid obstacles inside the equipment. Furthermore, when placing the product, it ensures that the initial posture of the product on the receiving fixture 21 matches the required posture of the dewatering outlet positioning groove 411. This embodiment, by programming and controlling the transfer path of the injection molding robot 7 to avoid internal obstacles, not only ensures the continuity of the automated process and equipment safety, but more importantly, by ensuring that the product is placed on the receiving fixture 21 in an initial posture consistent with the requirements of the dewatering outlet positioning groove 411, it lays a solid foundation for the subsequent one-time precise grasping of the material handling and transfer component 3 and its final accurate positioning in the dewatering outlet positioning groove 411. This reduces the need for secondary adjustments due to posture deviations from the source, improves the overall cycle time, and ensures the accuracy of inter-process transfer.
[0039] In step S300, the operating parameters of the ultrasonic dewatering die 423 are set according to the material characteristics of the lens base, including ultrasonic frequency, amplitude, and action time. During the dewatering process, the downward pressure applied by the dewatering drive module 42 to the dewatering die 423 is controlled within a set range to ensure effective separation of the dewatering nozzle while avoiding damage to the lens base body. This embodiment precisely sets key parameters such as ultrasonic frequency, amplitude, action time, and downward pressure according to the material characteristics of the lens base, enabling ultrasonic energy to be precisely applied to the nozzle connection. This controlled, energy-concentrated separation method can efficiently remove the dewatering nozzle while minimizing product whitening, cracks, internal stress, or structural damage common in traditional mechanical stamping methods. This ensures the integrity of the lens base body and the mechanical performance of optical components, significantly improving product yield and reliability.
[0040] In step S400, the rotation of the alternating turntable 52 is coordinated in timing with the dewatering action of the ultrasonic dewatering nozzle assembly 4 and the material handling and traying assembly 6. After the dewatering nozzle assembly 4 completes the dewatering of a product and places it into a fixed station 521, the alternating turntable 52 rotates a certain angle (e.g., 180°, corresponding to two stations), moving that station to the traying and material handling station, while simultaneously moving another empty station to the product receiving station, thus achieving parallel operation of the dewatering and traying processes. This embodiment achieves true parallel operation by precisely coordinating the rotation of the alternating turntable 52 with the dewatering and traying actions through a control system. The dewatering and traying processes are no longer sequential and waiting for each other, but are carried out independently at different stations simultaneously.
[0041] In step S500, the tray-positioning robot 61 is equipped with a vision positioning system or a precise point-to-point control program to ensure accurate positioning when grasping products and that the precision of placing the products into the designated acupoints in the tray meets the requirements. The tray positioning module 62 can automatically switch or index trays after a single tray is full. In this embodiment, the tray-positioning robot 61, combined with a vision positioning system or high-precision point-to-point control, can adaptively compensate for minor positional deviations of products on the alternating turntable 52, achieving precise grasping. It places the products into the designated acupoints in the tray with extremely high repeatability, meeting the stringent requirements for positional consistency of precision components in packaging and subsequent automated assembly. Combined with the automatic switching function of the tray positioning module 62, it achieves fully unmanned operation from single-product processing to batch packaging, reducing manual intervention, lowering the risk of mixed materials, and facilitating further integration into automated warehouses or AGV logistics systems.
[0042] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A lens mount injection molding processing device, characterized in that: The system includes an injection molding machine, a receiving assembly, a material handling and transfer assembly, an ultrasonic dehydration port assembly, an alternating transfer assembly, and a material handling and tray assembly. The injection molding machine is equipped with an injection molding robot, which is used to grasp and transfer the injection-molded product to the receiving assembly. The receiving assembly is used to receive and position the product. The material handling and transfer assembly is used to grasp and transfer the product to the ultrasonic dehydration port assembly. The ultrasonic dehydration port assembly is used to dehydrate the product, allowing it to fall onto the alternating transfer assembly. The alternating transfer assembly transfers the product to the material handling and tray assembly, which is used to grasp the product from the alternating transfer assembly and arrange it on a tray.
2. The lens mount injection molding equipment according to claim 1, characterized in that: The injection molding machine includes a frame, an injection driving module, an injection fixing module, and an injection mold. The injection driving module and the injection fixing module are respectively disposed on both sides of the frame. The injection mold is respectively disposed on the injection driving module and the injection fixing module. The injection driving module is used to drive the injection mold to move toward the injection fixing module to close the injection mold.
3. The lens mount injection molding equipment according to claim 2, characterized in that: The injection molding robot includes an XYZ transmission module and an injection gripper. The XYZ transmission module is mounted on the frame, and the injection gripper is mounted on the XYZ transmission module. The XYZ transmission module is used to drive the injection gripper to reciprocate between the injection mold and the receiving assembly.
4. The lens mount injection molding equipment according to claim 1, characterized in that: The receiving assembly includes a receiving fixture, a receiving mounting frame, and a receiving lifting module. The receiving assembly includes a receiving mounting frame and a receiving lifting module. The receiving mounting frame is used to fix the receiving lifting module. The receiving fixture is set on the receiving lifting module. The receiving lifting module is used to drive the receiving fixture to lift and lower, so as to receive the material supplied by the picking robot and then lower it to a specified height for the picking and transferring assembly to pick up and transfer the material. A waste recycling component is provided on one side of the receiving component. The waste recycling component includes a sprue guide plate, which is located on one side of the receiving component. A receiving bucket is provided at the bottom of the sprue guide plate for receiving waste.
5. The lens mount injection molding equipment according to claim 1, characterized in that: The material handling and transfer assembly includes a material handling bracket, a material handling rotation module, a gripping drive module, and a transfer gripper. The material handling bracket is used to fix the material handling rotation module in place, and the material handling rotation module is used to drive the gripping drive module to rotate, thereby causing the transfer gripper to move between the receiving assembly, the waste recycling assembly, and the material discharging and positioning assembly.
6. The lens mount injection molding equipment according to claim 1, characterized in that: The ultrasonic dehydration port assembly includes a dehydration port positioning frame and a dehydration port driving module. The dehydration port driving module is located above the dehydration port positioning frame. The dehydration port positioning frame is used for product positioning, and the dehydration port driving module is used to dehydrate the product on the dehydration port positioning frame.
7. The lens mount injection molding equipment according to claim 6, characterized in that: The dehydration port positioning frame is provided with a dehydration port positioning groove and a lens base guide groove. The dehydration port positioning groove is used for positioning the lens base frame, and the lens base guide groove is used for positioning and guiding the lens base after the dehydration port is removed.
8. The lens mount injection molding equipment according to claim 7, characterized in that: The dewatering port driving module includes a fixed bracket, a driving base, and a dewatering port mold head. The driving base is mounted on the fixed bracket, and the dewatering port mold head is mounted on the driving base. The dewatering port mold head is an ultrasonic dewatering port mold head. The driving base is used to drive the dewatering port mold head to move toward the dewatering port positioning frame to dewater the lens base.
9. The lens mount injection molding equipment according to claim 1, characterized in that: The alternating transfer component includes a rotary drive module and an alternating turntable. The alternating turntable is provided with at least two alternating fixed stations, which are used for product positioning after the dewatering port. The material handling and tray placement component includes a tray placement robot and a tray positioning module. The tray placement robot is used to grab products at the fixed stations and transfer them to the tray positioning module for tray placement.
10. A method for injection molding a lens mount, characterized in that: The method using the lens mount injection molding equipment as described in any one of claims 1 to 10 includes the following steps: Step S100, Injection Molding and Material Removal: Control the injection driving module of the injection molding machine to drive the injection mold to close and perform injection molding; after molding, open the mold, control the XYZ transmission module of the injection robot to drive the injection gripper to move to the mold cavity, grab the lens base product with the sprue, and transfer it to the receiving fixture of the receiving component. Step S200, receiving and pre-transfer: The receiving lifting module drives the receiving fixture carrying the product to rise, so as to receive the product from the injection molding robot; then, the receiving lifting module drives the receiving fixture to fall to a predetermined height, providing accurate positioning for the gripping operation of the material transfer component; Step S300, Product Transfer and Sprue Separation: The material handling rotation module of the material handling and transfer assembly drives the transfer gripper to rotate above the receiving fixture, and the gripping drive module drives the transfer gripper to descend and grip the product; subsequently, the material handling rotation module rotates to transfer the product and accurately place it in the dewatering positioning groove of the dewatering positioning frame of the ultrasonic dewatering outlet assembly; the drive seat of the dewatering outlet drive module drives the ultrasonic dewatering outlet head to descend, applying ultrasonic vibration to the product, causing the sprue and lens base to melt and separate at the connection point; the separated sprue is guided by the sprue guide plate to fall into the receiving bucket, completing the waste recycling; Step S400, Product transfer and buffering after dehydration: The lens base product after dehydration falls into the lens base guide groove of the dehydration positioning frame, and slides down through the guide groove or is guided by the auxiliary mechanism to the currently idle fixed position of the alternating turntable of the alternating transfer component; the rotation drive module drives the alternating turntable to rotate, rotating the position carrying the product to the working area of the material picking and placing component, while rotating another idle position to the receiving position, ready to receive the next product; Step S500, Product placement: The placement robot of the material handling and placement assembly moves to the fixed position above the alternating turntable and picks up the lens base product that has completed the dehydration process; then, the placement robot transfers the product to the material tray positioned on the material tray positioning module and places it precisely according to the preset pattern. Step S600, cyclic production: Repeat steps S100 to S500 until the preset production quantity is completed; wherein, the injection cycle of the injection molding machine, the robot arm action, the dewatering process and the tray movement are optimized and synchronized by the control system to achieve continuous automated production.