High-gloss spray-free electric vehicle front panel injection molding mold

Abstract

The utility model provides a kind of high light spray-free paint electric vehicle front wall injection molding mold, belong to mould technical field.It includes upper die plate and lower die plate, the upper die plate and lower die plate between being provided with forming cavity, the lower die plate downside being provided with top plate, the lower die plate being provided with the ejection mechanism connected with forming cavity on, the lower die plate top surface is protrudingly provided with the forming insert block that constitutes forming cavity.Setting forming insert block in lower die plate, its front end and rear end are respectively inclined and set front headlamp mounting hole forming plane and U type splicing part forming plane, cooperate the first oblique top component, second oblique top component and side core-pulling component set in view of, the vulnerable parts such as front headlamp mounting hole place and edge are accurately ejected and formed, the design disperses the ejection force, avoids local excessive force when ejecting, effectively solves the problem of electric vehicle front wall ejection damage.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a high-gloss, paint-free injection molding mold for the front of an electric vehicle. Background Technology

[0002] The front panel of an electric vehicle is generally formed by injection molding. Because the front panel and lower mold plate cover a large area, the front panel is often easily damaged during ejection, especially at the headlight mounting holes and the edges of the front panel.

[0003] For example, a Chinese patent discloses an injection molding mold for the front panel of a shared electric vehicle [application number: 202323222265.X], which includes an upper mold plate with an injection port inside. An upper mold base is provided below the upper mold plate, and a lower mold base is pressed against the bottom of the upper mold base. An upper mold core and a lower mold core are provided between the upper mold base and the lower mold base. An upper limit block and a lower limit block are provided on the upper mold base and the lower mold base, respectively. A positioning hole and a positioning post are provided on the upper mold base and the lower mold base, respectively. A ring protrusion and a ring groove are pressed against the upper mold base and the lower mold base, respectively. A support block, a top plate and a lower mold plate are provided below the lower mold base. A sliding column and a spring are provided above the top plate, and an inclined push rod and a vertical push rod are provided upward in the middle of the top plate. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a high-gloss, paint-free injection molding die for the front of an electric vehicle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-gloss, paint-free injection molding mold for the front of an electric vehicle includes an upper mold plate and a lower mold plate. A molding cavity is provided between the upper and lower mold plates. A top plate is provided on the lower side of the lower mold plate. An ejection mechanism connected to the molding cavity is provided on the lower mold plate. A molding insert forming the molding cavity is protruding from the top surface of the lower mold plate. The front end of the molding insert is inclined to have a headlight mounting hole molding plane that abuts against the bottom of the upper mold plate. The rear end of the molding insert is inclined to have a U-shaped splice molding plane that connects to the bottom of the upper mold plate. The ejection mechanism includes a first inclined ejector assembly located at the headlight mounting hole molding plane and two sets of second inclined ejector assemblies located on both sides of the molding insert. Two side core-pulling assemblies are symmetrically arranged on both sides of the U-shaped splice molding plane and connected to the rear end of the molding insert at the rear end of the lower mold plate.

[0007] In the aforementioned high-gloss, paint-free electric vehicle front bulkhead injection molding mold, the cross-section of the headlight mounting hole forming plane is circular.

[0008] In the above-mentioned high-gloss paint-free electric vehicle front bulkhead injection molding mold, the first inclined top component includes several first inclined top blocks arranged circumferentially along the headlight mounting hole forming plane. The bottom of the first inclined top block is connected to the top plate through a first inclined top rod, and the first inclined top rod is inclined at the center of the headlight mounting hole forming plane.

[0009] In the above-mentioned high-gloss paint-free electric vehicle front bulkhead injection molding mold, the second inclined ejector assembly includes several second inclined ejector blocks. The several second inclined ejector blocks extend from the side of the U-shaped splice forming plane along the outer edge of the forming insert to the front headlight mounting hole forming plane. The bottom of the second inclined ejector block is connected to the top plate through a second inclined ejector rod. The second inclined ejector rod is inclined towards the center of the forming insert.

[0010] In the aforementioned high-gloss, paint-free electric vehicle front bulkhead injection molding mold, the first and second inclined ejector rods are connected to the top plate via a sliding transition structure.

[0011] In the aforementioned high-gloss, paint-free electric vehicle front bulkhead injection molding mold, the sliding transition structure includes a transition base fixed on the top plate and having a T-shaped limiting groove. A limiting slider is slidably connected in the limiting groove, and the bottom of the first and second inclined push rods is fixedly connected to a transition block that is rotatably connected to the limiting slider.

[0012] In the above-mentioned high-gloss paint-free electric vehicle front bulkhead injection molding mold, the side core-pulling assembly includes a slider seat fixed on the lower template, a core-pulling slider slidably connected on the slider seat, a molding part protruding from the front end of the core-pulling slider and abutting against the rear end of the molding insert, and also includes a core-pulling drive assembly disposed on the upper template, the core-pulling drive assembly including a drive rod inclinedly fixed to the bottom of the upper template, the drive rod being inclinedly inserted into the core-pulling slider.

[0013] In the above-mentioned high-gloss paint-free electric vehicle front bulkhead injection molding mold, the lower template is also provided with a limiting block corresponding to the core-pulling slider. The limiting block is located outside the core-pulling slider. The outer end of the core-pulling slider is fixedly connected with a reset screw that is slidably connected to the limiting block. A reset spring is sleeved on the reset screw. A pressure sensor is also provided at the bottom of the limiting block.

[0014] In the aforementioned high-gloss, paint-free electric vehicle front bulkhead injection molding mold, the upper template is also equipped with a multi-point glue injection mechanism.

[0015] In the aforementioned high-gloss, paint-free electric vehicle front bulkhead injection molding mold, the multi-point injection mechanism includes a T-shaped manifold plate disposed on the upper side of the upper template. The bottom end of the T-shaped manifold plate is fixedly connected to a first injection tube connected to the headlight mounting hole molding plane and two second injection tubes connected to the U-shaped splice molding plane. The first injection tube is connected to the molding cavity from the outer edge of the headlight mounting hole molding plane through a first side injection channel disposed on the headlight mounting hole molding plane. The second injection tubes are connected to the molding cavity from the outer edge of the U-shaped splice molding plane through a second side injection channel disposed on the U-shaped splice molding plane.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. By setting a forming insert in the lower template, with the front and rear ends of the insert inclinedly set as the headlight mounting hole forming plane and the U-shaped splice forming plane, and in conjunction with the first inclined top component, the second inclined top component and the side core pulling component, the headlight mounting hole and other vulnerable parts are precisely ejected and formed. This design disperses the ejection force and avoids excessive local force during ejection, effectively solving the problem of damage to the front of the electric vehicle during ejection.

[0018] 2. The first inclined top assembly adopts several first inclined top blocks arranged circumferentially along the forming plane of the headlight mounting hole. The first inclined top blocks are connected to the top plate by the first inclined top rod and are inclined towards the center, which can make the first inclined top blocks gradually detach from the edge of the product. The circumferentially distributed inclined top blocks make the force at the headlight mounting hole even, and the inclined top rod achieves smooth ejection, avoiding the deformation or damage of the mounting hole that may be caused by single-point ejection, and improving the ejection safety at the headlight mounting hole.

[0019] 3. Several second inclined push blocks of the second inclined push assembly extend from the side of the U-shaped splice forming plane along the outer edge of the forming insert to the forming plane of the headlight mounting hole. The second inclined push rod is inclined towards the center of the forming insert. This structure forms a continuous and uniform push force on the front edge of the electric vehicle, covering the vulnerable edge area. Moreover, the inclination of the second inclined push rod towards the center of the forming insert allows the second inclined push block to gradually detach from the product edge, solving the damage problem caused by uneven edge force under the traditional push method.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is a structural diagram of the lower template;

[0024] Figure 4 This is a schematic diagram of the ejection mechanism;

[0025] Figure 5 This is a schematic diagram of the side core-pulling assembly. Detailed Implementation

[0026] like Figures 1-5 As shown, a high-gloss, paint-free electric vehicle front bulkhead injection molding mold includes an upper mold plate 1 and a lower mold plate 2. A molding cavity 3 is provided between the upper mold plate 1 and the lower mold plate 2. A top plate 4 is provided on the lower side of the lower mold plate 2. An ejection mechanism 5 connected to the molding cavity 3 is provided on the lower mold plate 2. A molding insert 6 forming the molding cavity 3 is protruding from the top surface of the lower mold plate 2. The front end of the molding insert 6 is inclined to a headlight mounting hole molding plane 7 that abuts against the bottom of the upper mold plate 1. The rear end of the molding insert 6 is inclined to a U-shaped splice part molding plane 8 that is connected to the bottom of the upper mold plate 1. The ejection mechanism 5 includes a first inclined ejector component 9 provided at the headlight mounting hole molding plane 7 and two sets of second inclined ejector components 10 provided on both sides of the molding insert 6. Two side core-pulling components 11 are symmetrically provided at the rear end of the lower mold plate 2, located on both sides of the U-shaped splice part molding plane 8 and connected to the rear end of the molding insert 6.

[0027] In this invention, a forming insert is set in the lower template, with the front and rear ends of which are respectively inclined to form the headlight mounting hole forming plane and the U-shaped splicing part forming plane. With the targeted first inclined top component, second inclined top component and side core pulling component, the headlight mounting hole and other vulnerable parts such as the edge are accurately ejected and formed. This design disperses the ejection force and avoids excessive local force during ejection, effectively solving the problem of damage to the front of the electric vehicle when ejected.

[0028] Specifically, the cross-section of the headlight mounting hole forming plane 7 is circular. The circular cross-section of the headlight mounting hole forming plane precisely matches the shape of the headlight mounting hole. This design ensures that the headlight mounting hole is subjected to uniform stress during the forming process, avoids local stress concentration caused by improper forming plane shape, and reduces the risk of damage when the headlight mounting hole is ejected.

[0029] Specifically, the first inclined top assembly 9 includes several first inclined top blocks 12 arranged circumferentially along the headlight mounting hole forming plane 7. The bottom of each first inclined top block 12 is connected to the top plate 4 via a first inclined top rod 13, which is inclined towards the center of the headlight mounting hole forming plane 7. The first inclined top assembly uses several first inclined top blocks arranged circumferentially along the headlight mounting hole forming plane. The first inclined top blocks are connected to the top plate via the first inclined top rod and are inclined towards the center, allowing the first inclined top blocks to gradually detach from the product edge. The circumferentially distributed inclined top blocks ensure balanced force at the headlight mounting hole, and the inclined top rod enables smooth ejection, avoiding deformation or damage to the mounting hole that may be caused by single-point ejection, thus improving the ejection safety at the headlight mounting hole.

[0030] Specifically, the second inclined top assembly 10 includes a plurality of second inclined top blocks 14. These blocks extend from the side of the U-shaped splice forming plane 8 along the outer edge of the forming insert 6 to the headlight mounting hole forming plane 7. The bottom of each second inclined top block 14 is connected to the top plate 4 via a second inclined top rod 15, which is inclined towards the center of the forming insert 6. The plurality of second inclined top blocks of the second inclined top assembly extend from the side of the U-shaped splice forming plane along the outer edge of the forming insert to the headlight mounting hole forming plane. The second inclined top rod is inclined towards the center of the forming insert. This structure creates a continuous and uniform ejection force on the front edge of the electric vehicle, covering vulnerable edge areas. Furthermore, the inclination of the second inclined top rod towards the center of the forming insert allows the second inclined top blocks to gradually detach from the product edge, solving the damage problem caused by uneven edge force under traditional ejection methods.

[0031] Specifically, the first inclined push rod 13 and the second inclined push rod 15 are connected to the top plate 4 through a sliding transition structure 16. The connection between the first and second inclined push rods and the top plate through the sliding transition structure allows the inclined push rods to slide adaptively during the push-out process. This design eliminates rigid friction and stress accumulation during push-out, making the push-out action smoother and avoiding additional damage to the front of the electric vehicle due to poor movement.

[0032] Specifically, the sliding transition structure 16 includes a transition base fixed to the top plate 4 and having a T-shaped limiting groove. A limiting slider is slidably connected within the limiting groove. The bottoms of the first inclined push rod 13 and the second inclined push rod 15 are fixedly connected to a transition block that is rotatably connected to the limiting slider. In the sliding transition structure, the limiting slider slides within the T-shaped limiting groove, and the transition block is rotatably connected to the limiting slider. This structure enables multi-directional adaptive adjustment of the inclined push rod during ejection, ensuring that the ejection force is always perpendicular to the molding surface, further reducing local impact forces during ejection and protecting the electric vehicle front bulkhead molding part.

[0033] Specifically, the side core-pulling assembly 11 includes a slider seat 17 fixed on the lower template 2, with a core-pulling slider 18 slidably connected to the slider seat 17. The front end of the core-pulling slider 18 has a protruding forming part 19 that abuts against the rear end of the forming insert 6. It also includes a core-pulling drive assembly mounted on the upper template 1. The core-pulling drive assembly includes a drive rod 20 tilted and fixed to the bottom of the upper template 1, which is tilted and inserted into the core-pulling slider 18. The side core-pulling assembly drives the core-pulling slider to slide via the drive rod. The front forming part of the core-pulling slider abuts against the rear end of the forming insert. This design achieves precise forming and stable core pulling of complex parts such as U-shaped splices, avoiding the pulling damage to the rear end of the front section caused by traditional core-pulling methods and ensuring the integrity of the edge of the formed part.

[0034] Specifically, the lower template 2 is also provided with a limiting block 21 corresponding to the core-pulling slider 18. The limiting block 21 is located on the outside of the core-pulling slider 18. A reset screw 22 that is slidably connected to the limiting block 21 is fixed to the outer end of the core-pulling slider 18. A reset spring 23 is sleeved on the reset screw 22. A pressure sensor 24 is also provided at the bottom of the limiting block 21. The limiting block of the side core-pulling assembly limits the core-pulling slider, and the reset screw and reset spring realize the automatic reset of the core-pulling slider. The pressure sensor monitors the pressure. This structure ensures that the core-pulling process is stable and controllable, avoids damage to the molded parts caused by excessive or insufficient core pulling, and at the same time, pressure monitoring can detect abnormalities in time, reducing the scrap rate.

[0035] Specifically, the upper mold plate 1 is also equipped with a multi-point glue injection mechanism 25. The multi-point glue injection mechanism on the upper mold plate allows the molten material to be injected into the molding cavity from multiple positions. This design solves the problem of uneven molten material flow caused by traditional single-point glue injection, ensuring that all parts of the front of the electric vehicle are fully filled and the pressure is balanced, reducing the possibility of damage during ejection due to filling defects.

[0036] Specifically, the multi-point injection mechanism 25 includes a T-shaped diverter plate 26 disposed on the upper side of the upper template 1. The bottom end of the T-shaped diverter plate 26 is fixedly connected to a first injection tube 27 connected to the headlight mounting hole forming plane 7 and two second injection tubes 28 connected to the U-shaped splice forming plane 8. The first injection tube 27 is connected to the forming cavity 3 from the outer edge of the headlight mounting hole forming plane 7 through a first side injection channel 29 disposed on the headlight mounting hole forming plane 7. The second injection tubes 28 are connected to the forming cavity 3 from the outer edge of the U-shaped splice forming plane 8 through a second side injection channel 30 disposed on the U-shaped splice forming plane 8. The T-shaped flow divider of the multi-point injection mechanism injects glue through the first injection tube and the second injection tube, respectively, from the flow channel on the outer edge of the headlight mounting hole molding plane and the U-shaped splice molding plane. This layout allows the glue gate to be formed on the side of the product, reducing the impact of the glue gate on the surface quality of the product. It also ensures that the molten material is evenly distributed throughout the molding cavity, avoiding excessive or insufficient local filling pressure, ensuring the overall structural strength of the electric vehicle front end is consistent, and reducing the probability of damage due to structural weakness during ejection.

[0037] The working principle of this utility model is as follows: by setting a forming insert in the lower template, the front and rear ends of which are respectively inclined to form the headlight mounting hole forming plane and the U-shaped splicing part forming plane. With the targeted first inclined top component, second inclined top component and side core pulling component, the headlight mounting hole and other vulnerable parts such as the edge are accurately ejected and formed. This design disperses the ejection force and avoids excessive local force during ejection, effectively solving the problem of damage to the front of the electric vehicle when ejected.

[0038] The headlight mounting hole has a circular cross-section, precisely matching the shape of the headlight mounting hole. This design ensures uniform stress distribution during the forming process, avoiding localized stress concentration caused by improper forming plane shape, and reducing the risk of damage during ejection. The first inclined ejector assembly uses several first inclined ejector blocks arranged circumferentially along the forming plane of the headlight mounting hole. These blocks are connected to the top plate by first inclined ejector rods and tilted towards the center, allowing the first inclined ejector blocks to gradually detach from the product edge. The circumferentially distributed inclined ejector blocks ensure balanced stress distribution at the headlight mounting hole, and the tilted ejector rods achieve smooth ejection, avoiding deformation or damage to the mounting hole that may occur with single-point ejection, thus improving the ejection safety of the headlight mounting hole. The second inclined ejector assembly has several second inclined ejector blocks extending from the side of the U-shaped splice forming plane along the outer edge of the forming insert to the forming plane of the headlight mounting hole. The second inclined ejector rods extend towards the forming insert... The inclined center of the block creates a continuous and uniform ejection force on the edge of the electric vehicle's front bulkhead, covering vulnerable areas. The second inclined ejector bar, tilted towards the center of the molding insert, allows the second inclined ejector bar to gradually detach from the product edge, solving the damage problem caused by uneven edge force in traditional ejection methods. The first and second inclined ejector bars are connected to the top plate via a sliding transition structure, allowing the inclined ejector bars to slide adaptively during ejection. This design eliminates rigid friction and stress accumulation during ejection, making the ejection action smoother and preventing additional damage to the electric vehicle's front bulkhead due to poor movement. In the sliding transition structure, the limiting slider slides within a T-shaped limiting groove, and the transition block is rotatably connected to the limiting slider. This structure enables multi-directional adaptive adjustment of the inclined ejector bar during ejection, ensuring the ejection force is always perpendicular to the molding surface, further reducing local impact forces during ejection and protecting the electric vehicle's front bulkhead molding.

[0039] The side core-pulling assembly drives the core-pulling slider to slide via a drive rod. The front forming part of the core-pulling slider abuts against the rear end of the forming insert. This design enables precise forming and smooth core pulling of complex parts such as U-shaped splices, avoiding the pulling damage to the front and rear ends of the traditional core-pulling method and ensuring the integrity of the edge of the molded part. The limiting block of the side core-pulling assembly limits the core-pulling slider, and the reset screw and reset spring realize the automatic reset of the core-pulling slider. The pressure sensor monitors the pressure. This structure ensures that the core-pulling process is stable and controllable, avoiding damage to the molded part caused by over- or under-pulling. At the same time, pressure monitoring can detect abnormalities in time and reduce the scrap rate.

[0040] The upper mold is equipped with a multi-point injection mechanism, which allows molten material to be injected into the molding cavity from multiple locations. This design solves the problem of uneven molten material flow caused by traditional single-point injection, ensuring that all parts of the electric vehicle front end are fully filled and the pressure is balanced. This reduces the likelihood of damage during ejection due to filling defects. The T-shaped diverter plate of the multi-point injection mechanism injects molten material through the first injection tube and the second injection tube, respectively, from the flow channel on the outer edge of the molding plane of the headlight mounting hole and the molding plane of the U-shaped splice. This layout allows the injection gate to be formed on the side of the product, reducing the impact of the injection gate on the outer surface quality of the product. It also ensures that the molten material is evenly distributed throughout the molding cavity, avoiding excessive or insufficient local filling pressure. This ensures the consistent overall structural strength of the electric vehicle front end and reduces the probability of damage due to structural weakness during ejection.

[0041] 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.

Claims

1. A high-gloss, paint-free injection molding die for the front of an electric vehicle, comprising an upper mold plate (1) and a lower mold plate (2), characterized in that, A forming cavity (3) is provided between the upper template (1) and the lower template (2). A top plate (4) is provided on the lower side of the lower template (2). An ejection mechanism (5) connected to the forming cavity (3) is provided on the lower template (2). A forming insert (6) that forms the forming cavity (3) is provided on the top surface of the lower template (2). The front end of the forming insert (6) is inclined to provide a headlight mounting hole forming plane (7) that abuts against the bottom of the upper template (1). The rear end of the forming insert (6) is inclined to provide a U-shaped splicing part forming plane (8) connected to the bottom of the upper template (1). The ejection mechanism (5) includes a first inclined ejection component (9) provided at the headlight mounting hole forming plane (7) and two sets of second inclined ejection components (10) provided on both sides of the forming insert (6). The rear end of the lower template (2) is symmetrically provided with two side core-pulling components (11) that are provided on both sides of the U-shaped splicing part forming plane (8) and connected to the rear end of the forming insert (6).

2. The high-gloss, paint-free electric vehicle front bulkhead injection molding mold according to claim 1, characterized in that, The cross-section of the headlight mounting hole forming plane (7) is circular.

3. The high-gloss, paint-free electric vehicle front bulkhead injection molding mold according to claim 2, characterized in that, The first inclined top assembly (9) includes several first inclined top blocks (12) arranged circumferentially along the headlight mounting hole forming plane (7). The bottom of the first inclined top block (12) is connected to the top plate (4) through a first inclined top rod (13). The first inclined top rod (13) is inclined at the center of the headlight mounting hole forming plane (7).

4. The high-gloss, paint-free electric vehicle front bulkhead injection molding mold according to claim 3, characterized in that, The second inclined top assembly (10) includes a plurality of second inclined top blocks (14). The plurality of second inclined top blocks (14) extend from the side of the U-shaped splice forming plane (8) along the outer edge of the forming insert (6) to the forward headlight mounting hole forming plane (7). The bottom of the second inclined top block (14) is connected to the top plate (4) through a second inclined top rod (15). The second inclined top rod (15) is inclined toward the center of the forming insert (6).

5. The high-gloss, paint-free electric vehicle front bulkhead injection molding mold according to claim 4, characterized in that, The first inclined push rod (13) and the second inclined push rod (15) are connected to the top plate (4) through a sliding transition structure (16).

6. The high-gloss, paint-free electric vehicle front bulkhead injection molding mold according to claim 5, characterized in that, The sliding transition structure (16) includes a transition base fixed on the top plate (4) and having a T-shaped limiting groove. A limiting slider is slidably connected in the limiting groove. The bottom of the first inclined push rod (13) and the second inclined push rod (15) is fixedly connected to a transition block that is rotatably connected to the limiting slider.

7. The high-gloss, paint-free electric vehicle front bulkhead injection molding mold according to claim 1, characterized in that, The side core-pulling assembly (11) includes a slider seat (17) fixed on the lower template (2), a core-pulling slider (18) is slidably connected on the slider seat (17), the front end of the core-pulling slider (18) is provided with a forming part (19) that abuts against the rear end of the forming insert (6), and also includes a core-pulling drive assembly disposed on the upper template (1), the core-pulling drive assembly includes a drive rod (20) that is inclinedly fixed to the bottom of the upper template (1), the drive rod (20) is inclinedly inserted into the core-pulling slider (18).

8. The high-gloss, paint-free electric vehicle front bulkhead injection molding mold according to claim 7, characterized in that, The lower template (2) is also provided with a limiting block (21) corresponding to the core-pulling slider (18). The limiting block (21) is located outside the core-pulling slider (18). The outer end of the core-pulling slider (18) is fixedly connected with a reset screw (22) that is slidably connected to the limiting block (21). A reset spring (23) is sleeved on the reset screw (22). A pressure sensor (24) is also provided at the bottom of the limiting block (21).

9. The high-gloss, paint-free electric vehicle front bulkhead injection molding mold according to claim 1, characterized in that, The upper template (1) is also provided with a multi-point glue injection mechanism (25).

10. The high-gloss, paint-free electric vehicle front bulkhead injection molding mold according to claim 9, characterized in that, The multi-point glue injection mechanism (25) includes a T-shaped diverter plate (26) set on the upper side of the upper template (1). The bottom end of the T-shaped diverter plate (26) is fixedly connected to a first injection tube (27) connected to the headlight mounting hole forming plane (7) and two second injection tubes (28) connected to the U-shaped splice forming plane (8). The first injection tube (27) is connected to the forming cavity (3) from the outer edge of the headlight mounting hole forming plane (7) through a first side glue injection channel (29) set on the headlight mounting hole forming plane (7). The second injection tubes (28) are connected to the forming cavity (3) from the outer edge of the U-shaped splice forming plane (8) through a second side glue injection channel (30) set on the U-shaped splice forming plane (8).

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