Injection mold structure for manufacturing headlamp bottom shell

Abstract

The utility model relates to the technical field of injection molds, in particular to an injection mold structure for manufacturing a headlamp bottom shell, the injection mold structure comprises a fixed mold and a movable mold, and is provided with a pouring mechanism, a profile sliding block mechanism and an ejection mechanism for forming and ejecting the headlamp bottom shell, and the profile sliding block mechanism comprises a sliding seat and a driving inclined rod to form a side wall groove; and the ejection mechanism realizes ejection of the product through an ejection plate and an ejector pin. In addition, the structure is provided with a cooling system to optimize the cooling effect in the whole injection molding process, so that the production efficiency and the product quality of the headlamp bottom shell are effectively improved, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of molds, and in particular to an injection mold structure for manufacturing headlight housings. Background Art

[0002] In modern automotive manufacturing, the headlight housing, as a key component of automotive headlights, directly impacts the performance and manufacturing cost of the entire vehicle through its quality and production efficiency. Headlight housings are typically manufactured using injection molding, a process that offers advantages such as high production efficiency, low cost, and ease of molding complex shapes. However, with the rapid development of the automotive industry and consumers' increasing demands for vehicle quality, higher requirements are being placed on the manufacturing precision, surface quality, and production efficiency of headlight housings.

[0003] The injection mold structure for manufacturing headlight housings using related technologies mainly consists of two parts: a fixed mold and a moving mold. These two parts work together to form a cavity for injection molding the headlight housing. During the injection molding process, molten plastic is injected into the cavity through a gating mechanism and solidifies after the mold cools to form the headlight housing.

[0004] The molds in the relevant technologies have the following defects: When manufacturing headlight housings, traditional injection molds face challenges in design, process, materials and lifespan, especially in ensuring high-precision molding of details such as side wall grooves. Utility Model Content

[0005] The purpose of this application is to overcome the above-mentioned technical problems and provide an injection mold structure for manufacturing headlight housings.

[0006] An injection mold structure for manufacturing a headlight base shell includes a fixed mold and a moving mold, and further includes a casting mechanism, a positioning slider mechanism, and an ejection mechanism. The fixed mold and the moving mold cooperate to form a cavity for injection molding the headlight base shell, the shape of the cavity being adapted to the shape of the headlight base shell. The casting mechanism is disposed on the fixed mold and is used to inject molten plastic into the cavity. The positioning slider mechanism is disposed on the moving mold or the fixed mold and is used to form grooves on the sidewalls of the headlight base shell during the injection molding process. The ejection mechanism is disposed on the moving mold or the fixed mold and is used to eject the headlight base shell from the cavity after injection molding is completed.

[0007] By adopting the above technical solution, the injection mold structure for manufacturing headlight base shells enables efficient production of headlight base shells. Specifically, the cavity formed by the cooperation of the fixed mold and the moving mold ensures the precise molding of the headlight base shell; the casting mechanism accurately injects molten plastic into the cavity, improving injection precision; the introduction of the mold positioning slider mechanism allows the mold to precisely control the molding of details such as side wall grooves during the injection process. This mechanism, through precise design and manufacturing, ensures the stability and accuracy of the slider during movement, thereby achieving precise control over the shape, size, and position of the grooves, greatly improving the manufacturing precision of the headlight base shell and ensuring product quality; the ejection mechanism facilitates the smooth ejection of the headlight base shell after injection molding, simplifying the part removal operation and improving production efficiency.

[0008] Preferably, the positioning slider mechanism includes a sliding seat and a driving inclined rod. The sliding seat slides and engages with the moving mold. The driving inclined rod is fixed to the fixed mold. The sliding seat has a driving inclined hole, and the driving inclined rod passes through the driving inclined hole, with the driving inclined rod sliding and engaging with the driving inclined hole. A protrusion is fixedly provided on the side of the sliding seat near the cavity, and the protrusion is used to form the groove of the headlight bottom shell sidewall.

[0009] By adopting the above technical solution, the positioning slider mechanism includes a sliding seat and a driving slant rod. The sliding seat slides and engages with the moving mold, and the driving slant rod is fixed on the fixed mold. The sliding seat has a driving slant hole, through which the driving slant rod passes and slides and engages with it. A protrusion is fixedly provided on the side of the sliding seat near the cavity. The protrusion is used to form the groove of the headlight bottom shell sidewall. This design enables the accurate formation of the groove structure of the headlight bottom shell sidewall during the injection molding process, thereby improving the molding accuracy of the injection molded part.

[0010] Preferably, a first guide rod is fixedly provided on the sliding seat, and a first guide block is fixedly provided on the moving mold. The first guide block has a first guide hole, and the first guide rod passes through the first guide hole, with the first guide rod slidingly engaging with the first guide hole.

[0011] By adopting the above technical solution, the first guide rod on the sliding seat slides and engages with the first guide hole of the first guide block on the moving mold, ensuring the precise guidance of the position slider mechanism during the injection molding process, improving molding accuracy, reducing the deviation of the sliding seat during the movement process, and enhancing the stability of the entire mold structure.

[0012] Preferably, a first anti-detachment block is fixedly provided at the end of the first guide rod, and a first spring is sleeved on the first guide rod; one end of the first spring abuts against the first anti-detachment block, and the other end of the first spring abuts against the first guide block.

[0013] By adopting the above technical solution, a first anti-detachment block is added to the end of the first guide rod and a first spring is sleeved on the first guide rod, which can effectively prevent the first guide rod from falling off during the working process, improve the stability and reliability of the sliding seat when it moves, and ensure the smooth operation of the sliding seat during the injection molding process.

[0014] Preferably, it also includes a cooling system disposed in the fixed mold and / or the moving mold for cooling the cavity during the injection molding process.

[0015] By adopting the above technical solution, a cooling system is added. This cooling system is set in the fixed mold and / or moving mold to cool the cavity during the injection molding process, thereby accelerating the curing process of the headlight base and improving production efficiency.

[0016] Preferably, the cooling system includes water channels and a cooling medium, wherein the water channels are disposed in the fixed mold and / or the moving mold, and are used to cool the cavity by means of the cooling medium.

[0017] By adopting the above technical solution, the addition of a cooling system enables cooling of the mold cavity during injection molding, thereby accelerating the curing speed of the headlight base and improving production efficiency. Specifically, the water channels and cooling medium effectively reduce the mold cavity temperature, accelerate plastic curing, and shorten the production cycle.

[0018] Preferably, the ejection mechanism includes a top plate and a plurality of ejector pins. The top plate slides with the moving mold, and one end of the plurality of ejector pins is fixedly connected to the top plate. The moving mold has a plurality of pin holes, which communicate with the cavity. The ejector pins correspond one-to-one with the pin holes, and the ejector pins pass through the pin holes. The ejector pins slide with the moving mold, and the ejector pins are used to eject the headlight base shell when the mold is opened.

[0019] By adopting the above technical solution, the ejection mechanism includes a top plate and multiple ejector pins. The top plate slides and engages with the moving mold, and one end of each ejector pin is fixedly connected to the top plate. Multiple pin holes are opened on the moving mold, and the pin holes are interconnected with the cavity. Each ejector pin corresponds to a pin hole, and the ejector pin passes through the pin hole. The ejector pin slides and engages with the moving mold. The ejector pin is used to eject the headlight base shell when the mold is opened, thereby achieving smooth ejection of the headlight base shell and improving production efficiency.

[0020] Preferably, a second guide rod is fixedly provided on the top plate, and a second guide hole is provided on the moving mold. The second guide rod passes through the second guide hole, and the second guide rod slides in conjunction with the second guide hole.

[0021] By adopting the above technical solution, the second guide rod fixedly installed on the top plate slides and cooperates with the second guide hole on the moving mold, which can ensure the stability and guiding accuracy of the top plate during the movement process, thereby improving the stability and reliability of the ejection mechanism and avoiding deviation or jamming during the ejection process.

[0022] Preferably, a second anti-detachment block is fixedly provided at the end of the second guide rod, and a second spring is sleeved on the second guide rod; one end of the second spring abuts against the second anti-detachment block, and the other end of the second spring abuts against the surface of the moving mold.

[0023] By adopting the above technical solution, a second anti-detachment block and a second spring are added, which improves the stability of the top plate during the sliding process, effectively prevents the top plate from detaching from the second guide rod, and improves the reliability of the ejection mechanism.

[0024] Preferably, both the fixed mold and the moving mold are threaded with eye bolts 10.

[0025] By adopting the above technical solution, lifting eye bolts 10 are added to the fixed mold and the moving mold, which facilitates the safe and efficient installation and disassembly of the mold using lifting equipment, thereby improving production efficiency and reducing the labor intensity of operators.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The positioning slider mechanism can accurately form the groove on the side wall of the headlight base, improving the surface quality and dimensional accuracy of the product;

[0028] 2. The ejection mechanism is reasonably designed to ensure that the headlight base shell can be stably ejected after injection molding, thus improving the reliability of demolding;

[0029] 3. The cooling system effectively shortens the curing time of the headlight housing and improves production efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the injection mold structure for manufacturing the headlight base shell in the embodiments of this application.

[0031] Figure 2 This is a schematic diagram of the position slider mechanism in an embodiment of this application.

[0032] Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0033] Figure 4 This is a schematic diagram of the ejection mechanism in the embodiments of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Fixed mold; 11. Drive slant block; 2. Moving mold; 21. First guide block; 22. Mounting groove; 3. Casting mechanism; 4. Sliding block mechanism; 41. Sliding seat; 42. Drive slant rod; 43. Drive slant hole; 44. Protrusion; 45. First guide rod; 46. First anti-detachment block; 47. First spring; 5. Ejection mechanism; 51. Top plate; 52. Ejector pin; 53. Second guide rod; 54. Second anti-detachment block; 55. Second spring; 6. Cavity; 7. Cooling system; 8. Mounting channel; 9. Second guide block; 91. Guide groove; 10. Lifting eye bolt. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0037] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0038] This application provides an injection mold structure for manufacturing a headlight base shell, referring to... Figure 1 and Figure 2 The injection mold structure for manufacturing the headlight base shell includes a fixed mold 1 and a moving mold 2, as well as a gating mechanism 3, a positioning slider mechanism 4, and an ejection mechanism 5. The fixed mold 1 and the moving mold 2 cooperate to form a cavity 6 for injection molding the headlight base shell, the shape of which is adapted to the shape of the headlight base shell. The gating mechanism 3 is mounted on the fixed mold 1 and communicates with the cavity 6, used to inject molten plastic into the cavity 6. The positioning slider mechanism 4 is mounted on either the moving mold 2 or the fixed mold 1 and is used to form grooves on the sidewalls of the headlight base shell during the injection molding process. The ejection mechanism 5 is mounted on the moving mold 2 and is used to eject the headlight base shell from the cavity 6 after injection molding, achieving the effects of improving the surface quality and dimensional accuracy of the headlight base shell during injection molding and simplifying the ejection mechanism 5, thereby improving the overall reliability of the mold.

[0039] Reference Figure 2 and Figure 3The positioning slider mechanism 4 includes a sliding seat 41 and a driving inclined rod 42. The sliding seat 41 slides and engages with the moving mold 2. The moving mold 2 has a mounting groove 22, in which a second guide block 9 is fixedly installed. The second guide block 9 has a through guide groove 91, through which the sliding seat 41 passes. The sliding seat 41 slides and engages with the guide groove 91, increasing the stability of the sliding seat 41. The driving inclined rod 42 is fixed to the fixed mold 1. The sliding seat 41 has a driving inclined hole 43, through which the driving inclined rod 42 slides and engages with the driving inclined hole 43. A driving inclined block 11 is fixedly installed on the side of the fixed mold 1 near the moving mold 2. The side of the driving inclined block 11 near the sliding seat 41 has a first inclined surface, and the side of the sliding seat 41 near the driving inclined block 11 has a second inclined surface. The surface of the first inclined surface abuts against the surface of the second inclined surface. The axis of the driving inclined hole 43 is parallel to the first inclined surface, and the axis of the driving inclined hole 43 is parallel to the second inclined surface. A protrusion 44 is fixedly provided on the side of the sliding seat 41 near the cavity 6 for forming the groove of the side wall of the headlight bottom shell.

[0040] Reference Figure 3 A first guide rod 45 is provided on the sliding seat 41, and a first guide block 21 is provided on the moving mold 2. The first guide block 21 has a first guide hole, through which the first guide rod 45 passes, and the first guide rod 45 slides in conjunction with the first guide hole. The first guide rod 45 is a rectangular guide post or a cylindrical guide post. A first anti-detachment block 46 is provided at the end of the first guide rod 45, and a first spring 47 is sleeved on the first guide rod 45. One end of the first spring 47 abuts against the first anti-detachment block 46, and the other end of the first spring 47 abuts against the first guide block 21.

[0041] Reference Figure 1 The cooling system 7 is located in the fixed mold 1 and / or the moving mold 2, and is used to cool the cavity 6 during the injection molding process to accelerate the curing of the headlight base. The cooling system 7 includes water channels and a cooling medium. An installation channel 8 is provided in the fixed mold 1 and / or the moving mold 2, and the water channels are located within the installation channel 8. The cavity 6 is cooled by the cooling medium. The water channels adopt a serpentine or spiral design, and the cooling speed of the cavity 6 is adjusted by regulating the flow rate and temperature of the cooling medium. On the one hand, by optimizing the cooling path and cooling medium parameters, the temperature distribution within the cavity 6 is made more uniform; on the other hand, by enhancing the cooling effect, the curing time of the product is shortened, and production efficiency is improved.

[0042] Reference Figure 2 and Figure 4The ejection mechanism 5 includes a top plate 51 and multiple ejector pins 52. There are two top plates 51, which are fixedly connected and slidably disposed inside the moving mold 2. The top plates 51 and the moving mold 2 are in sliding engagement. One end of each ejector pin 52 is fixedly connected to the top plate 51. The moving mold 2 has multiple pin holes that communicate with the cavity 6. Each ejector pin 52 corresponds to a pin hole and passes through the pin hole, slidingly engaging with the moving mold 2. The ejector pins 52 are used to eject the headlight base shell during mold opening. (Refer to...) Figure 4 A second guide rod 53 is provided on the top plate 51, and a second guide hole is provided on the moving mold 2. The second guide rod 53 passes through the second guide hole and is slidably fitted with the second guide hole. The second guide rod 53 is a guide post or screw with high straightness. A second anti-detachment block 54 is provided at the end of the second guide rod 53, and a second spring 55 is sleeved on the second guide rod 53. One end of the second spring 55 abuts against the second anti-detachment block 54, and the other end of the second spring 55 abuts against the surface of the moving mold 2. By increasing the load capacity of the second spring 55, the top plate 51 is ensured to move smoothly during ejection, and the deviation is reduced by the guiding effect of the second guide rod 53.

[0043] Reference Figure 1 Both the fixed mold 1 and the moving mold 2 are fitted with threaded eye bolts 10. The threaded portion of the eye bolts 10 can be selected with different diameter specifications, and the bolt length can be adjusted according to actual conditions. They are made of stainless steel or high-strength alloy material to meet lifting requirements. The top of the eye bolts 10 is equipped with a handle for easy lifting operations by workers.

[0044] The implementation principle of this embodiment is as follows: by optimizing the positioning slider mechanism 4, the guiding accuracy between the sliding seat 41 and the moving mold 2 is increased, and the curing time of the product is further shortened by the design of the cooling system 7. The ejection mechanism 5 simplifies the overall structure and improves the reliability of the ejection process, ultimately achieving the goal of improving the surface quality and dimensional accuracy of the headlight base shell. At the same time, the ejection mechanism 5 is simplified, increasing the reliability and production efficiency of the entire injection mold.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An injection mold structure for manufacturing headlight base shells, characterized in that: The device includes a fixed mold (1) and a moving mold (2), as well as a casting mechanism (3), a positioning slider mechanism (4), and an ejection mechanism (5). The fixed mold (1) and the moving mold (2) cooperate to form a cavity (6) for injection molding a headlight base shell, and the shape of the cavity (6) is adapted to the shape of the headlight base shell. The casting mechanism (3) is set on the fixed mold (1) and is used to inject molten plastic into the cavity (6). The positioning slider mechanism (4) is set on the moving mold (2) or the fixed mold (1) and is used to form a groove on the side wall of the headlight base shell during the injection molding process. The ejection mechanism (5) is set on the moving mold (2) or the fixed mold (1) and is used to eject the headlight base shell from the cavity (6) after the injection molding is completed.

2. The injection mold structure for manufacturing a headlight base shell according to claim 1, characterized in that: The positioning slider mechanism (4) includes a sliding seat (41) and a driving inclined rod (42). The sliding seat (41) slides with the moving mold (2). The driving inclined rod (42) is fixed on the fixed mold (1). The sliding seat (41) has a driving inclined hole (43). The driving inclined rod (42) passes through the driving inclined hole (43) and slides with the driving inclined hole (43). A protrusion (44) is fixedly provided on the side of the sliding seat (41) near the cavity (6). The protrusion (44) is used to form the groove of the side wall of the headlight bottom shell.

3. The injection mold structure for manufacturing a headlight base shell according to claim 2, characterized in that: A first guide rod (45) is fixedly provided on the sliding seat (41), and a first guide block (21) is fixedly provided on the moving mold (2). A first guide hole (22) is provided on the first guide block (21), and the first guide rod (45) passes through the first guide hole (22). The first guide rod (45) slides and engages with the first guide hole (22).

4. The injection mold structure for manufacturing a headlight base shell according to claim 3, characterized in that: A first anti-detachment block (46) is fixedly provided at the end of the first guide rod (45), and a first spring (47) is sleeved on the first guide rod (45); one end of the first spring (47) abuts against the first anti-detachment block (46), and the other end of the first spring (47) abuts against the first guide block (21).

5. The injection mold structure for manufacturing a headlight base shell according to claim 1, characterized in that: It also includes a cooling system (7) disposed in the fixed mold (1) and / or the moving mold (2) for cooling the cavity (6) during injection molding to accelerate the curing of the headlight base.

6. The injection mold structure for manufacturing a headlight base shell according to claim 5, characterized in that: The cooling system (7) includes water channels disposed in the fixed mold (1) and / or the moving mold (2) for cooling the cavity (6) by means of a cooling medium.

7. The injection mold structure for manufacturing a headlight base shell according to claim 1, characterized in that: The ejection mechanism (5) includes a top plate (51) and a plurality of ejector pins (52). The top plate (51) slides with the moving mold (2), and one end of the plurality of ejector pins (52) is fixedly connected to the top plate (51). The moving mold (2) has a plurality of pin holes, which are interconnected with the cavity (6). The ejector pins (52) correspond one-to-one with the pin holes. The ejector pins (52) pass through the pin holes and slide with the moving mold (2). The ejector pins (52) are used to eject the headlight base shell when the mold is opened.

8. The injection mold structure for manufacturing a headlight base shell according to claim 7, characterized in that: The top plate (51) is fixedly provided with a second guide rod (53), and the moving mold (2) is provided with a second guide hole (23). The second guide rod (53) passes through the second guide hole (23) and slides with the second guide hole (23).

9. The injection mold structure for manufacturing a headlight base shell according to claim 8, characterized in that: A second anti-detachment block (54) is fixedly provided at the end of the second guide rod (53), and a second spring (55) is sleeved on the second guide rod (53); one end of the second spring (55) abuts against the second anti-detachment block (54), and the other end of the second spring (55) abuts against the surface of the moving mold (2).

10. The injection mold structure for manufacturing a headlight base shell according to claim 1, characterized in that: Both the fixed mold (1) and the moving mold (2) are threaded with eye bolts (10).

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