A forming die for a light-transmitting mounting base of a vehicle headlamp

Abstract

The application relates to the field of vehicle part production and discloses a light-transmitting mounting seat forming die for a vehicle headlamp, which comprises an injection molding machine frame body, a net mold plate is arranged in the injection molding machine frame body, hydraulic cylinders are arranged at the top of the four corners of the net mold plate, a movable mold plate is slidably connected to the top of the net mold plate, an upper die is arranged on the inner wall of the movable mold plate, a lower die is arranged on the top of the net mold plate, a lower forming cavity and an upper forming cavity are respectively arranged on the side of the upper die and the lower die, first flow channels are arranged at the two ends of the upper die, a second flow channel is arranged at one end of the lower die, a plurality of mounting columns are arranged on the inner wall of the lower die, springs are arranged on the inner wall of the mounting columns, a jack rod is slidably connected to the inner wall of the mounting columns, and a plurality of pressing rods are fixedly connected to the inner wall of the upper die. The synchronous elastic design of the plurality of jack rods and the springs arranged at the four corners of the die achieves a more efficient and smoother demolding effect.

Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing, specifically to a molding die for a headlight light-transmitting mounting base. Background Technology

[0002] With the rapid development of the automotive industry, consumers' demands for vehicle exterior design and lighting performance are constantly increasing. As an important component of the car's front visual appeal, the structural design and assembly precision of headlights are receiving increasing attention. Especially in the market trend of pursuing high brightness, precise light distribution, and stronger decorative effects, the light-transmitting mounting bracket inside the headlight is gradually evolving from a single structure to a multi-functional and high-precision design. The light-transmitting mounting bracket not only needs to support the light source structure but also undertakes multiple functions such as light transmission guidance, component positioning, and thermal deformation control, which places more stringent technical requirements on its material properties, molding precision, and structural stability.

[0003] As a key structural component in automotive lighting systems, headlight light-transmitting mounting brackets are typically mass-produced using injection molding. These products have relatively complex shapes and require high dimensional accuracy, placing high demands on mold design and molding processes. Current technology generally employs traditional injection molds with upper and lower molds, guiding molten plastic into the mold cavity through runners, where the product is formed after cooling. However, existing molds still have many shortcomings in practical applications and urgently need improvement.

[0004] First, the demolding structure of existing molds is relatively simple, usually using a single push rod or angled ejector mechanism for ejection. When dealing with products with complex contours or thin-walled structures, this type of demolding method is prone to incomplete demolding, resulting in product deformation, sticking to the mold, or even breakage, thus reducing the product qualification rate.

[0005] Secondly, during the mold opening and closing process, the guiding accuracy between the moving template and the fixed template is difficult to guarantee. Some structures may experience micro-displacement during the mold closing stage due to the lack of effective positioning and matching, resulting in cavity misalignment or mold gaps, which in turn affects the dimensional accuracy and surface quality of the molded parts. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a molding die for a car headlight light-transmitting mounting base, which solves the problems of low demolding efficiency, inaccurate cavity fit, and uneven cooling during the injection molding process.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a molding die for a car headlight light-transmitting mounting base, comprising an injection molding machine frame, a clean template installed inside the injection molding machine frame, hydraulic cylinders installed at the four corners of the top of the clean template, a movable template slidably connected to the top of the clean template, an upper mold installed on the inner wall of the movable template, and a lower mold installed on the top of the clean template. A lower molding cavity and an upper molding cavity are respectively opened on the adjacent side of the upper mold and the lower mold. A first flow channel is opened at both ends of one end of the upper mold, and a second flow channel is opened at one end of the lower mold.

[0009] By adopting the above technical solution, the upper and lower molds are set relative to each other, and the upper and lower molding cavities are respectively opened to form a complete product cavity, ensuring the accurate reproduction of the product's geometric structure. The first and second flow channels set at both ends of the mold together form a complete injection channel, which effectively realizes the uniform filling of molten plastic and avoids defects such as flow marks and bubbles in the product. This significantly improves the molding quality and production efficiency of the automotive headlight light-transmitting mounting base.

[0010] Preferably, the inner wall of the lower mold is equipped with multiple mounting columns, the inner wall of each mounting column is equipped with a spring, the inner wall of each mounting column is slidably connected with a push rod, and the inner wall of the upper mold is fixedly connected with multiple pressure rods.

[0011] By adopting the above technical solution, during the mold closing process, the pressure rod presses down to store energy in the spring and pushes the ejector rod to a pre-tightened state; when the mold opens, the spring releases its elastic potential energy, driving the ejector rod to push the molded part upward, thus achieving automatic demolding. This structure, through a multi-point elastic ejection method, effectively improves the synchronization and flexible control of the demolding action, avoiding problems such as uneven loading and jamming commonly found in traditional centralized demolding structures.

[0012] Preferably, the upper mold is slidably connected to one end of the lower mold, and they fit together to form a molding cavity.

[0013] By adopting the above technical solution, the sliding interlocking structure not only improves the assembly accuracy between mold components but also enhances the sealing of the molding cavity, which is conducive to the uniform filling of molten material during injection molding and prevents quality defects such as flash and overflow. At the same time, this structure facilitates the guidance and control of mold opening and closing, improves the overall operational stability and mold life, and further ensures the consistency of the product's outline and injection molding quality.

[0014] Preferably, the top rods are arranged in a rectangular pattern inside the lower forming cavity, the pressure rods are arranged in a rectangular pattern inside the upper forming cavity, and the pressure rods are slidably connected to one end of the mounting column.

[0015] By adopting the above technical solution, during the mold closing process, the pressure rod compresses the spring inside the mounting column downwards and pre-presses the ejector pin; when the mold opens, the spring force is released evenly, and the ejector pin pushes upwards as a whole, smoothly demolding the product. The rectangular arrangement structure effectively improves the synchronicity of the ejection action, preventing warping and deformation caused by uneven force on the product, while reducing local wear, extending the service life of the mold, and further optimizing the surface quality and geometric accuracy of the molded parts.

[0016] Preferably, the inner wall of the upper mold is provided with a first cooling pipe, and the interior of the lower mold is provided with a second cooling pipe.

[0017] By adopting the above technical solutions, the heat released by the molten plastic is quickly removed during the injection molding process, shortening the cooling time and increasing the production cycle. At the same time, the dual-sided cooling arrangement can significantly improve the uniformity of cooling, avoid molding defects such as uneven shrinkage and internal stress accumulation caused by local overheating, and ensure the dimensional stability and structural strength of the product.

[0018] Preferably, the top of the upper mold is provided with a filling port, which is connected to the second flow channel and the first flow channel respectively, for injecting plastic slurry into the molding cavity formed by the lower molding cavity and the upper molding cavity.

[0019] By adopting the above technical solution, the top-to-bottom design of the injection port helps the plastic material to quickly and symmetrically fill the mold cavity space formed by the upper and lower molding cavities during injection molding, thereby reducing incomplete filling, flow deviation, or stagnation. The top-feed design also effectively reduces air bubble accumulation during injection, improves the density and surface quality of the molded material, further enhances the stability of the injection molding process and the consistency of the finished product, and meets the dual requirements of injection efficiency and balanced filling for complex structural parts.

[0020] Preferably, one end of the upper mold is fixedly connected to a positioning guide post, and a limit groove is formed on one side of the top of the lower mold, with the positioning guide post slidably connected inside the limit groove.

[0021] By adopting the above technical solution, the alignment accuracy of the upper and lower molds during opening and closing movements is ensured through the cooperation between the guide pillars and the limiting grooves, effectively preventing poor cavity assembly caused by mold misalignment or displacement. This design not only improves the assembly reliability and repeatability of the mold structure, but also enhances the contour consistency and dimensional accuracy of the product, reduces defects such as burrs and misalignments caused by deviations, and strengthens the stability of mold operation and the quality control capability of the injection molding process.

[0022] Preferably, the hydraulic cylinder penetrates the clear template and is fixedly connected to the moving template, and the moving template is slidably connected to one end of the injection molding machine frame.

[0023] By adopting the above technical solution, the hydraulic cylinder, as a power source, achieves stable driving of the mold opening and closing action by precisely controlling its extension and retraction stroke, effectively improving the uniformity of force and the synchronization of action when the mold closes. The sliding connection between the moving platen and the frame body further ensures the guiding accuracy during its movement, preventing deviation and jamming, and ensuring that the upper and lower molds maintain a good alignment state throughout the injection molding cycle.

[0024] Preferably, the spring is located at the bottom of the top rod, and the mounting post has a positioning groove inside to limit the vertical movement of the top rod.

[0025] By adopting the above technical solution, during the mold opening process, the spring pops out the ejector rod upward to push the product out of the mold. At the same time, the positioning groove limits the rising height of the ejector rod, avoiding problems such as ejector rod displacement or jamming due to excessive stroke, thus improving the safety and controllability of the demolding action.

[0026] A light-transmitting mounting bracket for automotive headlights includes a headlight mounting base, which is obtained by injecting plastic slurry into a molding cavity formed by a lower molding cavity and an upper molding cavity, cooling and demolding. One end of the headlight mounting base is provided with multiple mounting holes, and multiple lamp cups are installed at one end of the headlight mounting base.

[0027] Working principle: The user first correctly installs the upper and lower molds onto the moving and net mold plates within the injection molding machine frame, and aligns them using positioning guide pillars. The two parts of the mold form the upper and lower molding cavities. During injection, molten material enters the first and second runners through the sprue and fills the mold cavities.

[0028] During injection molding, the hydraulic system controls the opening and closing of the mold via hydraulic cylinders, ensuring uniform pressure distribution and eliminating gaps when the mold is closed. The cooling system within the mold cools the plastic through first and second cooling pipes, ensuring the stability of the plastic molding process. After molding, the demolding mechanism located between the lower and upper molds activates when the mold opens. Multiple ejector pins and springs work synchronously and elastically at the four corners of the mold. These components cooperate to provide appropriate elastic force, facilitating demolding. The ejector pins apply upward force, combined with the reaction force of the springs, allowing the molded part to smoothly detach when the mold opens, avoiding the dragging phenomenon found in traditional demolding methods. This improves production efficiency and processing quality.

[0029] This invention provides a molding die for a light-transmitting mounting base for automotive headlights. It has the following advantages:

[0030] 1. This invention achieves a more efficient and smoother demolding effect by setting multiple ejector pins and springs at the four corners of the mold in a synchronized elastic design. Unlike the single demolding method commonly found in existing technologies, the innovative demolding mechanism of this invention effectively avoids the dragging phenomenon during traditional demolding through the synergistic action of multiple elastic forces, reducing operational difficulty, improving production efficiency, and significantly reducing the need for manual intervention.

[0031] 2. This invention achieves high-precision mold docking through the precise combination of the first and second flow channels, ensuring perfect fit of the molding cavity. As a result, the material flow is more uniform during injection molding, avoiding molding defects caused by mold errors, and significantly improving product stability and consistency. Compared with the imprecise mold fit in the prior art, the design of this invention improves production efficiency and molding quality. Attached Figure Description

[0032] Figure 1 This is a perspective view of the present invention;

[0033] Figure 2 This is a schematic diagram showing the disassembly of the upper mold position according to the present invention;

[0034] Figure 3 This is a schematic diagram of the positioning guide post structure of the present invention;

[0035] Figure 4 This is a bottom view of the upper mold of the present invention;

[0036] Figure 5 This is a top view of the lower mold of the present invention;

[0037] Figure 6 This is an exploded view of the mounting column structure of the present invention;

[0038] Figure 7 This is a schematic diagram of the headlight mounting bracket structure of the present invention;

[0039] Figure 8 This is a rear view schematic diagram of the headlight mounting bracket of the present invention;

[0040] Figure 9 This is a schematic cross-sectional view of the mounting column of the present invention.

[0041] The components include: 1. Injection molding machine frame; 2. Positioning guide post; 3. Limiting groove; 4. Net template; 5. Moving template; 6. Upper mold; 7. Lower mold; 8. First runner; 9. Filling port; 10. Second runner; 11. Lower molding cavity; 12. Upper molding cavity; 13. First cooling pipe; 14. Second cooling pipe; 15. Headlight mounting base; 16. Mounting hole; 17. Lamp reflector; 18. Pressure rod; 19. Mounting post; 20. Ejector rod; 21. Spring; 22. Hydraulic cylinder. Detailed Implementation

[0042] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see the appendix Figure 1 -Appendix Figure 3 This invention provides a molding die for a car headlight light-transmitting mounting base, comprising: an injection molding machine frame 1, a clear template 4 installed inside the injection molding machine frame 1, hydraulic cylinders 22 installed at the four corners of the top of the clear template 4, a movable template 5 slidably connected to the top of the clear template 4, an upper mold 6 installed on the inner wall of the movable template 5, and a lower mold 7 installed on the top of the clear template 4. A lower molding cavity 11 and an upper molding cavity 12 are respectively opened on the adjacent sides of the upper mold 6 and the lower mold 7. A first flow channel 8 is opened at both ends of one end of the upper mold 6, and a second flow channel 10 is opened at one end of the lower mold 7. The upper mold 6 is slidably connected to one end of the lower mold 7, and they interlock to form a molding cavity. The hydraulic cylinders 22 penetrate the clear template 4 and are fixedly connected to the movable template 5, which is slidably connected to one end of the injection molding machine frame 1.

[0044] Specifically, the injection molding machine frame 1 provides stable support for the entire mold system. The clear mold plate 4 is installed inside the frame, serving to support and fix the mold. Hydraulic cylinders 22 are installed at the four top corners of the clear mold plate 4. The hydraulic cylinders 22 drive the moving mold plate 5 to slide during mold closing and opening via hydraulic pressure. The hydraulic cylinders 22 penetrate the clear mold plate 4 and are fixedly connected to the moving mold plate 5, making the movement of the moving mold plate 5 smoother. This design reduces mold deformation and movement errors during high-pressure injection molding.

[0045] The moving mold plate 5 is slidably connected to the top of the clear mold plate 4. Under the control of the hydraulic cylinder 22, the moving mold plate 5 can accurately adjust the relative position between the upper mold 6 and the lower mold 7. The combination of the upper mold 6 and the lower mold 7 forms two molding cavities—the upper molding cavity 12 and the lower molding cavity 11. The injection molding material flows into these molding cavities through the first runner 8 and the second runner 10. These runners are rationally arranged, allowing the molten material to flow smoothly into the mold, avoiding problems such as obstructed flow or material accumulation. The precise fit between the upper mold 6 and the lower mold 7 ensures that every detail in the injection molding process is accurately formed, avoiding molding defects caused by poor fit in traditional molds.

[0046] Please see the appendix Figure 6 -Appendix Figure 9The lower mold 7 has multiple mounting posts 19 installed on its inner wall, and springs 21 are installed on the inner wall of each mounting post 19. Ejector rods 20 are slidably connected to the inner wall of each mounting post 19. The upper mold 6 has multiple pressure rods 18 fixedly connected to its inner wall. The ejector rods 20 are arranged in a rectangular pattern inside the lower forming cavity 11, and the pressure rods 18 are arranged in a rectangular pattern inside the upper forming cavity 12. The pressure rods 18 are slidably connected to one end of each mounting post 19. Springs 21 are located at the bottom of the ejector rods 20, and positioning grooves are provided inside the mounting posts 19 to limit the vertical movement of the ejector rods 20.

[0047] Specifically, the inner wall of the lower mold 7 is provided with multiple mounting pillars 19, and springs 21 are installed on the inner wall of the mounting pillars 19. Ejector pins 20 are slidably connected to the inner wall of the mounting pillars 19. This design allows the ejector pins 20 to enter the molding cavity when the mold is closed, and when the mold is opened, the ejector pins 20 are pushed upwards by the springs 21, smoothly ejecting the molded part from the mold. The ejector pins 20 are arranged in a rectangular layout, evenly distributed within the lower molding cavity 11, to ensure that the molded part does not encounter local resistance when it detaches from the mold, making the demolding process smoother and more efficient.

[0048] Multiple pressure rods 18 are fixedly connected to the inner wall of the upper mold 6. The pressure rods 18 are arranged in a rectangle inside the upper forming cavity 12, and are slidably connected to one end of the mounting post 19. This design allows the pressure rods 18 to work in conjunction with the ejector pin 20 when the mold opens, ejecting the molded part from the mold. The coordinated work of the pressure rods 18 and the ejector pin 20 ensures a uniform distribution of demolding force, reducing the possibility of the molded part getting stuck due to unidirectional thrust, thereby improving demolding efficiency and stability.

[0049] In addition, a positioning groove is provided inside the mounting column 19 to limit the vertical movement of the ejector pin 20, ensuring the vertical movement accuracy of the ejector pin 20 during the demolding process. The positioning groove prevents the ejector pin 20 from excessively moving or deviating during the entire demolding process, ensuring that the ejector pin 20 can smoothly push the molded part, avoiding demolding failure or damage to the molded part that may be caused by misoperation of the ejector pin 20.

[0050] Spring 21 is located at the bottom of ejector pin 20. When the mold opens, the elasticity of spring 21 provides sufficient demolding force, enabling ejector pin 20 to effectively push the molded part out of the mold, ensuring smooth demolding each time. Compared with traditional molds that rely on a single demolding system, the combination of multiple ejector pins 20 and pressure pins 18 not only increases the demolding speed but also makes the force more uniform during the demolding process, reducing the problem of part damage or mold jamming caused by uneven demolding.

[0051] Please see the appendix Figure 5 -Appendix Figure 6 The inner wall of the upper mold 6 is provided with a first cooling pipe 13, and the interior of the lower mold 7 is provided with a second cooling pipe 14.

[0052] Specifically, the first cooling pipe 13 and the second cooling pipe 14 are located around the molding cavities of the upper mold 6 and the lower mold 7, respectively. The design of the cooling pipes not only ensures that the temperature of the injection molding material is uniformly regulated within a suitable timeframe, but also avoids molding defects caused by localized overheating or undercooling of the mold. For example, localized overheating of the mold can lead to uneven flow of the plastic material, resulting in air bubbles or incomplete filling, while undercooling may prevent the plastic material from completely filling the mold, leading to molding defects. Through the precise cooling fluid circulation of the first cooling pipe 13 and the second cooling pipe 14, the temperature of the molten material is balanced during injection molding, thereby ensuring the cooling rate of the mold and the stability of the molded plastic part.

[0053] The cooling system also offers the advantage of flexibility. By adjusting the placement of the cooling pipes, the flow rate and temperature of the cooling fluid can be customized to meet the specific needs of different types of plastics in each production run. This customized cooling design avoids the uneven cooling issues inherent in traditional molds, improves injection molding efficiency and product quality, and reduces molding defects caused by uneven cooling, such as warpage, cracks, or surface imperfections.

[0054] Optimizing the cooling system also protects the mold's lifespan. During high-frequency injection molding, rapid temperature fluctuations can cause wear and damage to the mold material. By optimizing the cooling system's layout, internal temperature variations are balanced, reducing thermal stress during production and effectively extending the mold's lifespan.

[0055] Please see the appendix Figure 4 -Appendix Figure 6 The top of the upper mold 6 is provided with a filling port 9, which is connected to the second flow channel 10 and the first flow channel 8 respectively, and is used to inject plastic slurry into the molding cavity formed by the lower molding cavity 11 and the upper molding cavity 12.

[0056] Specifically, the design of the sprue 9 allows the injection material to smoothly enter the runner system from the top of the mold. The through-flow design of the sprue 9 with the first runner 8 and the second runner 10 ensures that the molten plastic can flow quickly and evenly into the upper molding cavity 12 and the lower molding cavity 11. This layout ensures that when the mold is closed, the plastic material can be simultaneously and evenly distributed to all parts of the mold, avoiding molding defects caused by uneven filling in traditional molds, such as bubbles, flow marks, or insufficient injection.

[0057] The design of the runner system is crucial. The first runner 8 and the second runner 10 are connected to the molding cavity via the sprue 9, enabling the molten plastic to be accurately delivered to every corner of the mold. Furthermore, the location of the sprue 9 takes into account the material's flowability during injection molding and the mold's filling efficiency. By rationally setting the position of the sprue 9, the material can quickly enter the core of the mold, reducing the residence time of the molten material in the runner, thus helping to speed up the injection molding cycle and improve production efficiency.

[0058] Please see the appendix Figure 3 One end of the upper mold 6 is fixedly connected to a positioning guide post 2, and a limiting groove 3 is opened on one side of the top of the lower mold 7. The positioning guide post 2 is slidably connected inside the limiting groove 3.

[0059] Specifically, a positioning guide post 2 is fixedly connected to one end of the upper mold 6, and a limiting groove 3 is formed on one side of the top of the lower mold 7. The positioning guide post 2 is slidably connected inside the limiting groove 3. This design allows the upper mold 6 and the lower mold 7 to stably engage during the operation of the injection molding machine and ensures that the molds maintain a precise relative position when closed. The cooperation between the positioning guide post 2 and the limiting groove 3 is similar to a guiding system, which can guide the upper mold 6 and the lower mold 7 to maintain the correct movement trajectory when closing and opening, avoiding offset or jamming caused by poor mold fit.

[0060] When the mold closes, the positioning guide post 2, in cooperation with the limiting groove 3, ensures the symmetry and precision of all mold components, preventing mold deformation or uneven filling caused by inaccurate positioning. At the same time, the design of the limiting groove 3 also prevents mold misalignment, avoiding molding defects or mold damage caused by mold misalignment during high-pressure injection molding.

[0061] Furthermore, this design reduces vibration and impact during injection molding machine operation, providing a more stable molding process. The sliding connection of the positioning guide post 2 and the cooperation of the limiting groove 3 help the mold maintain good alignment, thereby improving production efficiency and product yield.

[0062] Please see the appendix Figure 7 -Appendix Figure 8 A light-transmitting mounting bracket for automotive headlights includes a headlight mounting bracket 15, which is obtained by injecting plastic slurry into a molding cavity formed by a lower molding cavity 11 and an upper molding cavity 12, cooling and demolding. One end of the headlight mounting bracket 15 is provided with multiple mounting holes 16, and multiple lamp cups 17 are installed at one end of the headlight mounting bracket 15.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding die for a light-transmitting mounting base for automotive headlights, comprising: The injection molding machine frame (1) is characterized in that a clean template (4) is installed inside the injection molding machine frame (1), and a hydraulic cylinder (22) is installed at each of the four corners of the top of the clean template (4). A movable template (5) is slidably connected to the top of the clean template (4). An upper mold (6) is installed on the inner wall of the movable template (5), and a lower mold (7) is installed on the top of the clean template (4). A lower molding cavity (11) and an upper molding cavity (12) are respectively opened on the side of the upper mold (6) and the lower mold (7). A first flow channel (8) is opened at both ends of one end of the upper mold (6), and a second flow channel (10) is opened at one end of the lower mold (7).

2. The molding die for a vehicle headlight light-transmitting mounting base according to claim 1, characterized in that: The inner wall of the lower mold (7) is equipped with multiple mounting columns (19), the inner wall of the mounting columns (19) is equipped with springs (21), the inner wall of the mounting columns (19) is slidably connected with push rods (20), and the inner wall of the upper mold (6) is fixedly connected with multiple pressure rods (18).

3. The molding die for a vehicle headlight light-transmitting mounting base according to claim 1, characterized in that: The upper mold (6) is slidably connected to one end of the lower mold (7), and they fit together to form a molding cavity.

4. The molding die for a vehicle headlight light-transmitting mounting base according to claim 2, characterized in that: The top rods (20) are arranged in a rectangular shape inside the lower forming cavity (11), and the pressure rods (18) are arranged in a rectangular shape inside the upper forming cavity (12). The pressure rods (18) are slidably connected to one end of the mounting column (19).

5. The molding die for a vehicle headlight light-transmitting mounting base according to claim 1, characterized in that: The inner wall of the upper mold (6) is provided with a first cooling pipe (13), and the interior of the lower mold (7) is provided with a second cooling pipe (14).

6. The molding die for a vehicle headlight light-transmitting mounting base according to claim 1, characterized in that: The top of the upper mold (6) is provided with a filling port (9), which is connected to the second flow channel (10) and the first flow channel (8) respectively, and is used to inject plastic slurry into the molding cavity formed by the lower molding cavity (11) and the upper molding cavity (12).

7. The molding die for a vehicle headlight light-transmitting mounting base according to claim 1, characterized in that: One end of the upper mold (6) is fixedly connected to a positioning guide post (2), and a limiting groove (3) is opened on one side of the top of the lower mold (7). The positioning guide post (2) is slidably connected inside the limiting groove (3).

8. The molding die for a vehicle headlight light-transmitting mounting base according to claim 1, characterized in that: The hydraulic cylinder (22) passes through the net template (4) and is fixedly connected to the moving template (5), which is slidably connected to one end of the injection molding machine frame (1).

9. A molding die for a vehicle headlight light-transmitting mounting base according to claim 2, characterized in that: The spring (21) is located at the bottom of the top rod (20), and the mounting column (19) has a positioning groove inside, which is used to limit the vertical movement of the top rod (20).

10. A headlight light-transmitting mounting base for automobiles, comprising a molding die for a headlight light-transmitting mounting base according to any one of claims 1-9, characterized in that, Includes a headlight mounting base (15), which is obtained by injecting plastic slurry into the molding cavity formed by the lower molding cavity (11) and the upper molding cavity (12) and cooling and demolding. One end of the headlight mounting base (15) is provided with multiple mounting holes (16), and multiple lamp cups (17) are installed on one end of the headlight mounting base (15).

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