Electric vehicle LED headlamp lens mold

Abstract

The utility model provides an electric vehicle LED headlamp lens mold, and belongs to the field of injection molds. The injection mold comprises a movable mold plate and a fixed mold plate, a molding area is arranged in the movable mold plate, a plurality of mold cores are arranged in the molding area, an injection molding channel is arranged in the molding area, the injection molding channel is located among the mold cores, the injection molding channel comprises a plurality of flow guide channels communicated with the corresponding mold cores, and the flow guide channels are communicated with the mold cores. An ejection structure is arranged in the movable mold plate and comprises a plurality of ejection rods connected with the movable mold plate in a sliding mode, and the ejection rods are placed in the mold core and the flow guide channel respectively.

Description

Technical Field

[0001] This utility model belongs to the field of injection molds, and in particular relates to a mold for an LED headlight lens for electric vehicles. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. It is widely used in industrial manufacturing. When using an injection mold, the raw material undergoes molding, cooling, and demolding within the mold to obtain the preliminary molded product.

[0003] When manufacturing LED headlight lenses for electric vehicles, the plastic part has a simple structure and regular shape, so the core does not need to be designed with a complex structure, and the injection molding speed is relatively fast. However, existing molds often only have one core, and the overall production speed is relatively slow.

[0004] For example, Chinese patent literature discloses a jewelry injection mold [patent application number: CN2010337612.0], which includes a mold body comprising a stationary mold and a moving mold. The stationary mold includes a left template and a right template. The left template has a left mold hole, and the right template has a right mold hole. The number of left and right mold holes is the same, and the diameter of the left mold hole is larger than that of the right mold hole. Both the left and right templates have injection ports. A rotating block is provided between the left and right templates, with a rotating shaft and a through rod on the rotating block. The moving mold has left and right templates with the same structure as the stationary mold, and a notch is provided on the moving mold. However, this mold cannot produce multiple plastic parts in a single injection molding process, resulting in low production efficiency. Utility Model Content

[0005] The purpose of this utility model is to address the above-mentioned problems by providing a mold for an LED headlight lens for electric vehicles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An LED headlight lens mold for electric vehicles includes a moving mold plate and a fixed mold plate. The moving mold plate has a molding area with several cores and an injection channel located between the cores. The injection channel includes several guide channels that communicate with the corresponding cores. The moving mold plate has an ejection structure with several ejector rods that are slidably connected to the moving mold plate. The ejector rods are placed inside the cores and the guide channels, respectively.

[0008] In the aforementioned electric vehicle LED headlight lens mold, the injection channel also includes a material retention channel. The injection channel includes two intersecting guide channels. The moving mold plate has four cores. Each guide channel is connected to a core at both ends. The intersection of the guide channels is located within the material retention channel.

[0009] In the aforementioned electric vehicle LED headlight lens mold, there is a push rod at the end near the guide channel and at the intersection of the two guide channels.

[0010] In the aforementioned LED headlight lens mold for electric vehicles, a ring of forming cavities is provided around the core, and the ejection structure also includes several top blocks that are slidably connected to the moving template. A portion of the top block extends into the forming cavity and is flush with the forming surface of the forming cavity.

[0011] In the aforementioned electric vehicle LED headlight lens mold, the ejection structure includes a lifting cavity located below the moving template. The lifting cavity is provided with a lifting plate, and the lifting plate is provided with a plurality of top shafts that slide through into the moving template. The plurality of top shafts are respectively connected to a top rod and a top block.

[0012] In the aforementioned electric vehicle LED headlight lens mold, a base plate is provided below the lifting cavity, and a connecting hole is provided in the base plate. The lifting plate is connected to an external linear actuator through the connecting hole.

[0013] In the aforementioned electric vehicle LED headlight lens mold, a stepped retaining surface is provided on the top shaft connected to the top block. When the mold is closed, the stepped retaining surface abuts against the moving template.

[0014] In the aforementioned electric vehicle LED headlight lens mold, the connection between the flow channel and the core is constricted, and its bottom is inclined.

[0015] In the aforementioned electric vehicle LED headlight lens mold, the fixed template and the moving template are respectively provided with a number of cooling holes.

[0016] In the aforementioned electric vehicle LED headlight lens mold, the moving template has a recessed cavity, and several cores are located in the recessed cavity. When the mold is closed, the fixed template abuts against the inner walls of the four sides of the recessed cavity.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] 1. The injection molding liquid is injected into the guide channel in the injection channel, and then injected into the molding cavity formed between each core and the fixed and moving mold plates for molding. Multiple plastic parts can be formed by injection molding in sequence, and multiple plastic parts can be produced in one injection, which improves work efficiency.

[0019] 2. During the injection molding process, a large amount of injection fluid is required, and the amount of injection fluid exceeds the amount required for the plastic part. This is to prevent empty packages or missing parts from occurring during the molding process. Therefore, during the injection molding process, the excess injection fluid will be left in the material channel.

[0020] 3. Because the flow channel is small, it is easy to break and remain in the mold during the ejection process. Therefore, by setting the ejector pin at the flow channel, this part of the plastic part is ejected during the ejection process, and it is not necessary to clean the inside of the mold multiple times after the plastic part is ejected. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure;

[0022] Figure 2 yes Figure 1 A diagram showing the hidden template;

[0023] Figure 3 yes Figure 2 A diagram showing the effect of hiding the animated template;

[0024] Figure 4 yes Figure 3 A structural diagram from another direction;

[0025] Figure 5 This is a structural diagram of the base plate.

[0026] In the figure: moving template 10, fixed template 11, forming area 12, core 13, guide channel 14, ejection structure 15, ejector rod 16, residual material channel 17, forming cavity 18, ejector block 19, lifting cavity 20, lifting plate 21, ejector shaft 22, bottom plate 23, connecting hole 24, cooling hole 25, recessed cavity 26. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] This utility model provides a mold for an electric vehicle LED headlight lens, combined with... Figure 1-5 As shown, the device includes a moving template 10 and a fixed template 11. The moving template 10 has a molding area 12, which contains a plurality of cores 13. The molding area 12 also has an injection channel located between the cores 13. The injection channel includes a plurality of flow channels 14 that communicate with the corresponding cores 13. The moving template 10 has an ejection structure 15, which includes a plurality of ejector rods 16 that are slidably connected to the moving template 10. The ejector rods 16 are respectively placed inside the cores 13 and inside the flow channels 14.

[0029] In this embodiment, during the injection molding process, the injection molding liquid is injected into the guide channel 14 in the injection channel, and then injected into the plastic part molding cavity formed between each core 13, the fixed template 11, and the moving template 10 for molding. Multiple plastic parts can be formed by sequential injection molding. After molding and cooling, the moving template 10 separates from the fixed template 11, and the ejector structure 15 works to move several ejector rods 16 upward to eject the plastic part out of the moving template 10.

[0030] The injection channel also includes a waste material channel 17. The injection channel includes two intersecting flow channels 14. The moving mold plate 10 has four cores 13. Each flow channel 14 is connected to a core 13 at both ends. The intersection of the flow channels 14 is located in the waste material channel 17.

[0031] In this embodiment, since multiple plastic parts are molded at once, a large amount of injection liquid is required during the injection molding process, and the amount of injection liquid exceeds the amount required for the plastic parts. To prevent empty packages or missing parts from occurring during the molding process, the excess injection liquid is left in the material channel 17 during the injection molding process.

[0032] A push rod 16 is provided near the end of the flow channel 14 and at the intersection of the two flow channels 14.

[0033] In this embodiment, the injection molding liquid is injected into the core 13 through the flow channel 14. After cooling and molding, the excess injection molding liquid will be formed in the flow channel 14. Since the flow channel 14 is small, it is easy to break and remain in the mold during the ejection process. Therefore, the ejector rod 16 provided at the flow channel 14 ejects this part of the plastic part during the ejection process, so that the mold interior does not need to be cleaned multiple times after the plastic part is ejected.

[0034] The core 13 is surrounded by a molding cavity 18. The ejection structure 15 also includes several top blocks 19 that are slidably connected to the moving template 10. A portion of the top block 19 extends into the molding cavity 18 and is flush with the molding surface of the molding cavity 18.

[0035] In this embodiment, the molding cavity 18 is used to mold the outer ring of the plastic part. Since the molding cavity 18 is recessed in the moving template 10, the part of the plastic part is embedded in the moving template 10 during molding, and the part is pushed out by the top block 19.

[0036] The ejection structure 15 includes a lifting cavity 20 located below the moving template 10. The lifting cavity 20 is provided with a lifting plate 21. The lifting plate 21 is provided with a plurality of top shafts 22 that slide through into the moving template 10. The plurality of top shafts 22 are respectively connected to the top rod 16 and the top block 19.

[0037] In this embodiment, during the ejection process, the lifting plate 21 moves upward, thereby driving several ejector rods 16 and ejector blocks 19 to move upward and eject the plastic part.

[0038] The lifting cavity 20 is provided with a base plate 23 below it, and the base plate 23 is provided with a connecting hole 24. The lifting plate 21 is connected to an external linear actuator through the connecting hole 24.

[0039] In this embodiment, the linear actuator is located outside the mold. The output shaft of the linear actuator is connected to the lifting plate 21 through the connecting hole 24, thereby driving the lifting plate 21 to move. Placing the linear actuator outside the mold facilitates subsequent mold replacement.

[0040] The top shaft 22 connected to the top block 19 is provided with a stepped retaining surface, which abuts against the moving template 10 when the mold is closed.

[0041] In this embodiment, when the mold is closed, the stepped surface on the top shaft 22 will abut against the moving template 10. In this state, the top block 19 is flush with the molding surface, thereby preventing the top block 19 from being ejected from the molding surface and causing molding failure.

[0042] The connection between the flow channel 14 and the core 13 is constricted, and its bottom is inclined.

[0043] In this embodiment, the size of the narrowing at the injection entrance of the core 13 is minimized as much as possible to reduce defects in this part after demolding.

[0044] The fixed template 11 and the moving template 10 are respectively provided with a number of cooling holes 25.

[0045] In this embodiment, a cooling water pipe for injecting coolant is inserted into the cooling hole 25 for rapid prototyping and improving production efficiency.

[0046] The moving template 10 has a recessed cavity 26, and several cores 13 are located in the recessed cavity 26. When the mold is closed, the fixed template 11 abuts against the four inner walls of the recessed cavity 26.

[0047] In this embodiment, since the injection molding environment is under high pressure, the fixed template 11 is embedded in the moving template 10 and abuts against the fixed template 11 through the inner walls of the four sides of the recessed cavity 26, thereby preventing the fixed template 11 and the moving template 10 from shifting relative positions and preventing the molding of the plastic part from failing.

[0048] The working principle of this utility model is as follows: When the mold is closed, the fixed mold plate 11 is embedded in the moving mold plate 10, so that the fixed mold plate 11 is embedded in the moving mold plate 10 and abuts against the fixed mold plate 11 through the four inner walls of the recessed cavity 26, thereby preventing the fixed mold plate 11 and the moving mold plate 10 from shifting relative positions. Then, the injection molding step is performed. The injection molding liquid is injected into the core 13 through the guide channel 14. After the injection molding is completed and cooled and formed, the moving mold plate 10 and the fixed mold plate 11 are separated. Then, the linear actuator works to make the lifting plate 21 move upward, thereby driving several ejector rods 16 and ejector blocks 19 to move upward and eject the plastic part.

[0049] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0050] Although this article frequently uses terms such as moving template 10, fixed template 11, forming area 12, core 13, guide channel 14, ejection structure 15, ejector rod 16, excess material channel 17, forming cavity 18, ejector block 19, lifting cavity 20, lifting plate 21, top shaft 22, bottom plate 23, connecting hole 24, cooling hole 25, recessed cavity 26, etc., these terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.

Claims

1. An electric vehicle LED headlamp lens mold characterized by, The injection molding machine comprises a movable mold plate (10) and a fixed mold plate (11), the movable mold plate (10) is provided with a molding area (12), the molding area (12) is provided with a plurality of cores (13), the molding area (12) is provided with an injection channel, the injection channel is located between the plurality of cores (13), the injection channel comprises a plurality of flow guide channels (14) in communication with the corresponding cores (13), the movable mold plate (10) is provided with an ejection structure (15), the ejection structure (15) comprises a plurality of ejector rods (16) in sliding connection with the movable mold plate (10), and the plurality of ejector rods (16) are respectively arranged in the cores (13) and the flow guide channels (14).

2. The electric vehicle LED headlamp lens mold of claim 1, wherein, The injection channel further comprises a surplus material channel (17), the injection channel comprises two intersecting flow guide channels (14), the movable mold plate (10) is provided with four cores (13), the two ends of each flow guide channel (14) are in communication with a core (13) respectively, and the intersection of the flow guide channels (14) is located in the surplus material channel (17).

3. The electric vehicle LED headlamp lens mold of claim 2, wherein, An end portion close to the flow guide channel (14) and the intersection of the two flow guide channels (14) are respectively provided with an ejector rod (16).

4. The electric vehicle LED headlamp lens mold of claim 1, wherein, The core (13) is provided with a molding cavity (18) around, the ejection structure (15) further comprises a plurality of ejection blocks (19) in sliding connection with the movable mold plate (10), and one part of the ejection blocks (19) extends into the molding cavity (18) and is flush with the molding surface of the molding cavity (18).

5. The electric vehicle LED headlamp lens mold of claim 4, wherein, The ejection structure (15) comprises a lifting cavity (20) located below the movable mold plate (10), the lifting cavity (20) is provided with a lifting plate (21), the lifting plate (21) is provided with a plurality of lifting shafts (22) slidingly arranged into the movable mold plate (10), and the plurality of lifting shafts (22) are connected with the ejector rods (16) and the ejection blocks (19) respectively.

6. The electric vehicle LED headlamp lens mold of claim 5, wherein, The lifting cavity (20) is provided with a bottom plate (23) below, the bottom plate (23) is provided with a connecting hole (24), and the lifting plate (21) is connected with an external linear driver through the connecting hole (24).

7. The electric vehicle LED headlamp lens mold of claim 5, wherein, The lifting shaft (22) connected with the ejection block (19) is provided with a stepped clamping surface, and the stepped clamping surface abuts against the movable mold plate (10) when the mold is closed.

8. The electric vehicle LED headlamp lens mold of claim 1, wherein, The connection between the flow guide channel (14) and the core (13) is in the shape of a necking, and the bottom thereof is in the shape of an inclination.

9. The electric vehicle LED headlamp lens mold of claim 1, wherein, The fixed mold plate (11) and the movable mold plate (10) are respectively provided with a plurality of cooling holes (25).

10. The electric vehicle LED headlamp lens mold of claim 1, wherein, The movable mold plate (10) is provided with a recessed cavity (26), and the plurality of cores (13) are located in the recessed cavity (26), and the fixed mold plate (11) abuts against the inner walls of four sides of the recessed cavity (26) when the mold is closed.

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