Automobile spoiler injection mold with zigzag cooling system

Abstract

The utility model belongs to mould technical field relates to a kind of automobile spoiler injection mould with zigzag cooling system.The utility model, including automobile spoiler forming lower mould and automobile spoiler forming upper mould, automobile spoiler forming lower mould is equipped with spoiler forming protrusion, the bottom of automobile spoiler forming upper mould is equipped with spoiler forming recessed cavity, the position of spoiler forming protrusion and spoiler forming recessed cavity corresponds and shape is matched, spoiler forming protrusion has spoiler lower end forming part in it, spoiler forming recessed cavity has spoiler upper end forming part in it.The utility model in use process, adopt zigzag shape's water inlet and outlet pipeline, increase water flow path length while reducing resistance, improve the cooling water volume in unit time, speed up heat exchange speed, significantly shorten injection cooling cycle.

Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to an injection mold for an automotive spoiler with a tortuous cooling system. Background Technology

[0002] In automotive parts manufacturing, spoilers, as crucial aerodynamic components, often have irregular curved surfaces. After injection molding, they require rapid cooling to ensure dimensional accuracy and production efficiency. Traditional injection mold cooling systems typically employ single-pipe or simple parallel pipe designs, which suffer from the following problems: 1. Dispersed cooling pipe layouts result in insufficient contact with the spoiler's molding surface, leading to uneven cooling and defects such as localized shrinkage and deformation; 2. Inlet and outlet water pipes are mostly straight, resulting in slow water flow and limited volume, leading to low cooling efficiency and prolonged injection cycles; 3. The upper and lower mold cooling systems lack zoning design, making it impossible to precisely control the heat dissipation needs of different areas of the spoiler (such as edges and center), further impacting production efficiency and product quality. Therefore, there is an urgent need to design an automotive spoiler injection mold with a tortuous cooling system that enables rapid cooling with large water volume and precise zoning temperature control, to solve the problems of low cooling efficiency and unstable product quality in traditional technologies.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a car spoiler mold that can make the injection molded part structure more compact [Application No.: 202220727792.2]. This mold includes a first horizontal plate, a lower mold fixedly connected to the top of the first horizontal plate, an upper mold above the lower mold, a second horizontal plate fixedly connected to the top of the upper mold, a first fixing block fixedly connected to the top of the second horizontal plate, a first mold cavity and a second mold cavity respectively opened at the bottom of the upper mold and the top of the lower mold, respectively, and feed holes opened on both the first fixing block and the upper mold. Limiting chambers are fixedly connected to both side walls of the lower mold, and a moving block is provided inside the limiting chamber. A threaded hole is opened on the moving block, and a threaded rod is threadedly connected to the threaded hole. The end of the threaded rod away from the lower mold passes through the side wall of the limiting chamber and is fixedly connected to a crank handle. However, this solution is still prone to defects such as insufficient fit, uneven cooling, and localized shrinkage and deformation during the cooling process. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing an injection mold for an automotive spoiler with a tortuous cooling system.

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

[0006] A car spoiler injection mold with a tortuous cooling system includes a lower mold and an upper mold. The lower mold has a spoiler forming protrusion, and the upper mold has a spoiler forming cavity at its bottom. The spoiler forming protrusion and the spoiler forming cavity are positioned and matched in shape. The spoiler forming protrusion has a lower spoiler forming part, and the spoiler forming cavity has an upper spoiler forming part. The lower spoiler forming part and the upper spoiler forming part are directly opposite each other. The lower mold has a lower modular multi-directional cooling structure, which is positioned corresponding to the lower spoiler forming part. The upper mold has an upper modular multi-directional cooling structure and an injection molded part, which is positioned corresponding to the upper spoiler forming part.

[0007] In the aforementioned automotive spoiler injection mold with a tortuous cooling system, the upper modular multi-directional cooling structure and the injection molded part are arranged alternately.

[0008] In the aforementioned automotive spoiler injection mold with a tortuous cooling system, the lower modular multi-directional cooling structure includes a cooling pipe located on the left side of the lower end face of the spoiler, a cooling pipe located in the middle of the lower end face of the spoiler, and a cooling pipe located on the right side of the lower end face of the spoiler, all disposed within the lower mold of the automotive spoiler. The cooling pipes on the left, middle, and right sides of the lower end face of the spoiler are located below the lower end forming part of the spoiler.

[0009] In the aforementioned automotive spoiler injection mold with a tortuous cooling system, the cooling pipe on the left side of the lower end face of the spoiler, the cooling pipe in the middle of the lower end face of the spoiler, and the cooling pipe on the right side of the lower end face of the spoiler are arranged in parallel to each other.

[0010] In the aforementioned injection mold for an automotive spoiler with a tortuous cooling system, the lower mold for forming the automotive spoiler is provided with a first tortuous water inlet / outlet pipe, a second tortuous water inlet / outlet pipe, and a third tortuous water inlet / outlet pipe. The cooling pipe on the left side of the lower end face of the spoiler is connected to the first tortuous water inlet / outlet pipe, the cooling pipe in the middle of the lower end face of the spoiler is connected to the second tortuous water inlet / outlet pipe, and the cooling pipe on the right side of the lower end face of the spoiler is connected to the first tortuous water inlet / outlet pipe.

[0011] In the above-mentioned automotive spoiler injection mold with a tortuous cooling system, the upper modular multi-directional cooling structure includes a cooling pipe on the left side of the upper surface of the spoiler, a cooling pipe in the middle of the upper surface of the spoiler, and a cooling pipe on the right side of the upper surface of the spoiler, all disposed in the upper mold of the automotive spoiler. The cooling pipe on the left side of the upper surface of the spoiler, the cooling pipe in the middle of the upper surface of the spoiler, and the cooling pipe on the right side of the upper surface of the spoiler are located above the upper molding part of the spoiler.

[0012] In the above-mentioned injection mold for an automotive spoiler with a tortuous cooling system, the upper mold for forming the automotive spoiler is provided with a first tortuous water inlet / outlet pipe, a second tortuous water inlet / outlet pipe, and a third tortuous water inlet / outlet pipe. The cooling pipe on the left side of the upper surface of the spoiler is connected to the first tortuous water inlet / outlet pipe, the cooling pipe in the middle of the upper surface of the spoiler is connected to the second tortuous water inlet / outlet pipe, and the cooling pipe on the right side of the upper surface of the spoiler is connected to the third tortuous water inlet / outlet pipe.

[0013] In the above-mentioned injection mold for an automotive spoiler with a tortuous cooling system, the lower end forming part of the spoiler includes a lower end forming surface of the spoiler disposed within the spoiler forming protrusion, and the upper end forming part of the spoiler includes an upper end forming surface of the spoiler disposed within the spoiler forming cavity, with the lower end forming surface of the spoiler and the upper end forming surface of the spoiler facing each other.

[0014] In the above-mentioned injection mold for an automotive spoiler with a tortuous cooling system, the injection molded part includes a plurality of injection tubes disposed in the upper mold of the automotive spoiler, and the injection tubes are connected to the upper molding surface of the spoiler.

[0015] In the above-mentioned injection mold for an automotive spoiler with a tortuous cooling system, the upper mold for forming the automotive spoiler is provided with a mold closing protrusion, and the lower mold for forming the automotive spoiler is provided with a mold closing cavity, the shapes of the mold closing protrusion and the mold closing cavity being adapted to each other.

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

[0017] 1. This utility model adopts a tortuous water inlet and outlet pipe, which increases the length of the water flow path while reducing resistance, increases the cooling water volume per unit time, accelerates the heat exchange speed, and significantly shortens the injection molding cooling cycle.

[0018] 2. The upper and lower molds of this utility model are respectively equipped with a grouped multi-directional cooling structure. Cooling pipes are arranged separately for the left, middle and right areas of the lower end face and upper end face of the spoiler to achieve targeted cooling of different areas and avoid local overheating or insufficient cooling.

[0019] 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

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a partial structural schematic diagram of the present invention.

[0022] Figure 3 This is a partial structural schematic diagram of another aspect of this utility model.

[0023] Figure 4 This is a schematic diagram of the upper mold for forming a car spoiler.

[0024] In the diagram: 1. Lower mold for car spoiler forming; 2. Upper mold for car spoiler forming; 3. Spoiler forming protrusion; 4. Spoiler forming cavity; 5. Lower end forming part of spoiler; 6. Upper end forming part of spoiler; 7. Lower modular multi-directional cooling structure; 8. Injection molded part; 9. Cooling pipe on the left side of the lower end face of spoiler; 10. Cooling pipe in the middle of the lower end face of spoiler; 11. Cooling pipe on the right side of the lower end face of spoiler; 12. First bend inlet / outlet water pipe of the lower mold; 13. Lower... 14. Second bend water inlet / outlet pipe of the lower mold; 15. Third bend water inlet / outlet pipe of the lower mold; 16. Cooling pipe on the left side of the upper surface of the spoiler; 17. Cooling pipe in the middle of the upper surface of the spoiler; 18. Cooling pipe on the right side of the upper surface of the spoiler; 19. First bend water inlet / outlet pipe of the upper mold; 20. Second bend water inlet / outlet pipe of the upper mold; 21. Third bend water inlet / outlet pipe of the upper mold; 22. Lower molded surface of the spoiler; 23. Upper molded surface of the spoiler; 24. Injection pipe; 25. Mold closing protrusion; 26. Mold closing cavity. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-4 As shown, an injection mold for an automotive spoiler with a tortuous cooling system includes a lower spoiler forming mold 1 and an upper spoiler forming mold 2. The lower spoiler forming mold 1 has a spoiler forming protrusion 3, and the upper spoiler forming mold 2 has a spoiler forming cavity 4 at its bottom. The spoiler forming protrusion 3 and the spoiler forming cavity 4 are positioned and shaped accordingly. The spoiler forming protrusion 3 has a lower spoiler forming portion 5, and the spoiler forming cavity 4 has... The spoiler has an upper forming part 6, and a lower forming part 5 is arranged opposite to the upper forming part 6. The lower mold 1 for forming the spoiler is provided with a lower modular multi-directional cooling structure 7, which corresponds to the position of the lower forming part 5. The upper mold 2 for forming the spoiler is provided with an upper modular multi-directional cooling structure 8 and an injection molded part 9, which corresponds to the position of the upper forming part 6.

[0027] In this embodiment, during mold closing, the spoiler forming protrusion 3 of the lower mold 1 for forming the spoiler is embedded in the spoiler forming cavity 4 of the upper mold 2 for forming the spoiler, and the two form a sealed cavity through shape adaptation; the lower molded part 5 and the upper molded part of the spoiler serve as the lower and upper inner walls of the cavity, respectively, jointly defining the forming shape of the spoiler; the lower modular multi-directional cooling structure 7 is close to the lower part of the spoiler forming part 5, and the upper modular multi-directional cooling structure 8 is close to the upper part of the spoiler forming part 6, forming an "upper and lower wrapping" cooling range. The precise fit of the concave and convex structures ensures the sealing of the cavity and avoids leakage of molten plastic during injection molding; the positional correspondence between the cooling structure and the forming part ensures that the cooling medium can directly act on the forming surface of the spoiler, improving the heat exchange efficiency; the independent layout of the injection molded part 9 and the cooling structure realizes the synchronous coordination of injection molding and cooling.

[0028] Combination Figure 1-4 As shown, the upper multi-directional cooling structure 8 and the injection molded part 9 are arranged alternately.

[0029] Specifically, the cooling pipes of the upper modular multi-directional cooling structure 8 are linearly distributed along the edge and center of the upper molding part 6 of the spoiler, and the injection pipes of the injection molded part 9 are inserted in the gaps between the cooling pipes. The two do not overlap or obstruct each other in the internal space of the upper mold 2 of the car spoiler.

[0030] Combination Figure 2 , Figure 3 As shown, the lower modular multi-directional cooling structure 7 includes a cooling pipe 10 on the left side of the lower end face of the spoiler, a cooling pipe 11 in the middle of the lower end face of the spoiler, and a cooling pipe 12 on the right side of the lower end face of the spoiler, all disposed in the lower mold 1 of the spoiler. The cooling pipe 10 on the left side of the lower end face of the spoiler, the cooling pipe 11 in the middle of the lower end face of the spoiler, and the cooling pipe 12 on the right side of the lower end face of the spoiler are located below the lower end forming part 5 of the spoiler.

[0031] In this embodiment, the direction of the cooling pipe 10 on the left side of the lower end face of the spoiler is parallel to the left edge contour of the lower end forming part 5 of the spoiler. The cooling pipe 11 in the middle of the lower end face of the spoiler is arranged laterally along the middle of the forming part. The cooling pipe 12 on the right side of the lower end face of the spoiler is symmetrically distributed on both sides of the middle cooling pipe with the left cooling pipe. All three are close to the lower surface of the lower end forming part 5 of the spoiler. The partitioned cooling pipes can provide differentiated cooling for the thickness difference of different areas of the lower end of the spoiler (such as thinner edges and thicker middle), avoiding over-cooling of thin areas or insufficient cooling of thick areas. The multi-pipe design expands the cooling coverage area and improves the overall cooling uniformity.

[0032] The three cooling pipes 10 on the left side of the lower end face of the spoiler, 11 in the middle of the lower end face of the spoiler, and 12 on the right side of the lower end face of the spoiler are arranged in parallel to each other.

[0033] In this embodiment, the axial directions of the three cooling pipes are completely consistent and parallel to the length direction of the lower end forming part 5 of the spoiler. The spacing between adjacent cooling pipes is equal, ensuring that the distance between each cooling pipe and the forming surface is uniform.

[0034] Combination Figure 2-3 As shown, the lower mold 1 for forming the car spoiler is provided with a first curved water inlet / outlet pipe 13, a second curved water inlet / outlet pipe 14, and a third curved water inlet / outlet pipe 15. The cooling pipe 10 on the left side of the lower end face of the spoiler is connected to the first curved water inlet / outlet pipe 13, the cooling pipe 11 in the middle of the lower end face of the spoiler is connected to the second curved water inlet / outlet pipe 14, and the cooling pipe 12 on the right side of the lower end face of the spoiler is connected to the first curved water inlet / outlet pipe 13.

[0035] In this embodiment, the first tortuous water inlet and outlet pipe 13 of the lower mold is connected to the left cooling pipe 10 and the right cooling pipe 12 of the lower end face of the spoiler through a branch interface, forming a parallel structure of "one inlet and two outlets"; the second tortuous water inlet and outlet pipe 14 of the lower mold is connected to the cooling pipe 11 in the middle of the lower end face of the spoiler, forming an independent loop; all three tortuous pipes extend the water flow path by multiple 90° bends.

[0036] The upper modular multi-directional cooling structure 8 includes a left cooling pipe 16, a middle cooling pipe 17, and a right cooling pipe 18 on the upper surface of the spoiler, all disposed within the upper mold 2 of the spoiler. The left cooling pipe 16, the middle cooling pipe 17, and the right cooling pipe 18 on the upper surface of the spoiler are located above the upper molding part 6 of the spoiler.

[0037] In this embodiment, the distribution positions of the left-side cooling pipe 16, the middle cooling pipe 17, and the right-side cooling pipe 18 on the upper surface of the spoiler are symmetrical with the three cooling pipes of the lower mold, corresponding to the left, middle, and right regions of the upper surface of the spoiler, respectively. The cooling pipes are close to the upper surface of the upper molding part 6 of the spoiler, forming a "pinch" structure of opposing cooling with the cooling pipes of the lower mold. The symmetrical partitioned cooling design allows the upper and lower surfaces of the spoiler to be cooled simultaneously, avoiding thermal stress imbalance caused by unilateral cooling and reducing product warping deformation. The upper mold cooling pipes cover the key heat dissipation area of ​​the upper molding part, forming a synergistic effect with the lower mold cooling, further shortening the cooling time.

[0038] The upper mold 2 for forming the car spoiler is provided with a first curved water inlet / outlet pipe 19, a second curved water inlet / outlet pipe 20, and a third curved water inlet / outlet pipe 21. The cooling pipe 16 on the left side of the upper surface of the spoiler is connected to the first curved water inlet / outlet pipe 19, the cooling pipe 17 in the middle of the upper surface of the spoiler is connected to the second curved water inlet / outlet pipe 20, and the cooling pipe 18 on the right side of the upper surface of the spoiler is connected to the third curved water inlet / outlet pipe 21.

[0039] In this embodiment, the three tortuous inlet and outlet water pipes of the upper mold are the same as those of the lower mold, all of which adopt a multi-segment bend design and are independently connected to the corresponding cooling pipes (the left pipe connects to the first pipe, the middle pipe connects to the second pipe, and the right pipe connects to the third pipe). The tortuous pipes of the upper and lower molds are connected in parallel through an external water system, and the water flow can be controlled synchronously or independently. The independent tortuous pipes allow the flow rate and velocity of each cooling area of ​​the upper mold to be adjusted individually. For example, for the thicker area in the middle of the upper surface of the baffle plate, the flow rate can be increased through the second tortuous inlet and outlet water pipe 20 of the upper mold. Together with the pipes of the lower mold, they form an "upper and lower coordinated temperature control" system to further improve the cooling accuracy.

[0040] Combination Figure 1-4 As shown, the lower end forming part 5 of the spoiler includes a lower end forming surface 22 of the spoiler disposed in the spoiler forming protrusion 3, and the upper end forming part 6 of the spoiler includes an upper end forming surface 23 of the spoiler disposed in the spoiler forming cavity 4. The lower end forming surface 22 of the spoiler and the upper end forming surface 23 of the spoiler are directly opposite each other.

[0041] In this embodiment, the curved profile of the lower end molding surface 22 of the spoiler is completely consistent with the design shape of the lower end of the spoiler, and the curved profile of the upper end molding surface 23 of the spoiler is completely consistent with the design shape of the upper end of the spoiler; the distance between the two is equal to the design thickness of the spoiler, and the normal direction of each point is kept aligned to ensure the accuracy of the cavity shape.

[0042] Combination Figure 1-4 As shown, the injection molded part 9 includes a plurality of injection tubes 24 disposed in the upper mold 2 for forming the car spoiler, and the injection tubes 24 are connected to the upper molding surface 23 of the spoiler.

[0043] In this embodiment, the inlet end of the injection tube 24 is connected to the outlet of an external injection molding machine, and the outlet end is opened at the feeding point of the upper molding surface 23 of the baffle plate (usually the middle or edge of the cavity, a non-critical area). The direction of the injection tube avoids the cooling pipes of the upper modular multi-directional cooling structure 8 to ensure no cross-interference.

[0044] Combination Figure 1-4 As shown, the upper mold 2 for forming the car spoiler is provided with a mold closing protrusion 25, and the lower mold 1 for forming the car spoiler is provided with a mold closing cavity 26. The shapes of the mold closing protrusion 25 and the mold closing cavity 26 are matched.

[0045] In this embodiment, the mold-closing protrusion 25 is a cuboid or conical structure and is located at the four corners of the edge of the upper mold 2 for forming the car spoiler; the mold-closing cavity 26 is a groove that matches the shape of the protrusion and is located at the corresponding position of the lower mold 1 for forming the car spoiler; when the mold is closed, the protrusion is completely embedded in the cavity.

[0046] The working principle of this utility model is as follows:

[0047] The upper mold 2 and lower mold 1 of the car spoiler are precisely positioned by the engagement of the mold closing protrusion 25 and the mold closing cavity 26. The spoiler forming protrusion 3 and the spoiler forming cavity 4 close to form a sealed cavity. The lower molded surface 22 and the upper molded surface 23 of the spoiler form the inner wall of the cavity, ensuring the product's shape accuracy. Molten plastic is injected into the cavity through the injection tube 24 of the injection molding part 9. The outlet end of the injection tube is directly connected to the upper molded surface 23 of the spoiler, and the entire cavity is quickly filled under pressure. At this time, the cooling systems of the upper and lower molds are in a pre-start state, and the cooling medium circulates at a low speed to avoid premature cooling that may affect the filling effect. In the lower mold, the cooling medium enters and exits through the first bend of the water pipe 13. The lower mold's second bend inlet / outlet water pipe 14 and the lower mold's third bend inlet / outlet water pipe 15 flow into the left side cooling pipe 10, the middle cooling pipe 11, and the right side cooling pipe 12 on the lower end face of the spoiler, respectively. They absorb heat by closely adhering to the lower end forming surface 22 of the spoiler. In the upper mold, the cooling medium flows into the upper mold's upper end face's upper left side cooling pipe 16, the middle cooling pipe 17, and the right side cooling pipe 18 via the upper mold's first bend inlet / outlet water pipe 19, the upper mold's second bend inlet / outlet water pipe 20, and the upper mold's third bend inlet / outlet water pipe 21, respectively. It absorbs heat by closely adhering to the upper end forming surface 23 of the spoiler. After cooling is completed, the upper mold and the lower mold separate, and the formed spoiler is removed from the cavity under the action of the ejection mechanism, and the mold enters the next production cycle.

[0048] 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 replace them, without departing from the spirit of this utility model.

[0049] Although this article uses a lot of terms such as: 1. lower mold for automotive spoiler forming; 2. upper mold for automotive spoiler forming; 3. spoiler forming protrusion; 4. spoiler forming cavity; 5. lower end forming part of spoiler; 6. upper end forming part of spoiler; 7. lower modular multi-directional cooling structure; 8. upper modular multi-directional cooling structure; 9. injection molded part; 10. left side cooling pipe of lower end face of spoiler; 11. middle cooling pipe of lower end face of spoiler; 12. right side cooling pipe of lower end face of spoiler; 13. first bend inlet and outlet water pipe of lower mold; 14. second bend inlet of lower mold. The terms used include: water outlet pipe 14, lower mold third bend water inlet / outlet pipe 15, left side cooling pipe on the upper surface of the spoiler 16, middle cooling pipe on the upper surface of the spoiler 17, right side cooling pipe on the upper surface of the spoiler 18, first bend water inlet / outlet pipe on the upper mold 19, second bend water inlet / outlet pipe on the upper mold 20, third bend water inlet / outlet pipe on the upper mold 21, lower end forming surface of the spoiler 22, upper end forming surface of the spoiler 23, injection pipe 24, mold closing protrusion 25, and mold closing cavity 26. However, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An injection mold for an automotive spoiler with a tortuous cooling system, comprising a lower mold (1) for forming the automotive spoiler and an upper mold (2) for forming the automotive spoiler, characterized in that, The lower mold (1) for forming the car spoiler is provided with a spoiler forming protrusion (3), and the bottom of the upper mold (2) for forming the car spoiler is provided with a spoiler forming cavity (4). The spoiler forming protrusion (3) and the spoiler forming cavity (4) are positioned and matched in shape. The spoiler forming protrusion (3) has a lower spoiler forming part (5), and the spoiler forming cavity (4) has an upper spoiler forming part (6). The lower spoiler forming part (5) and the spoiler forming part (6) are provided in the lower mold (1) for forming the car spoiler. The upper part of the spoiler forming part (6) is set directly opposite each other. The lower mold (1) of the car spoiler forming part is provided with a lower modular multi-directional cooling structure (7). The lower modular multi-directional cooling structure (7) corresponds to the position of the lower part of the spoiler forming part (5). The upper mold (2) of the car spoiler forming part is provided with an upper modular multi-directional cooling structure (8) and an injection molded part (9). The upper modular multi-directional cooling structure (8) corresponds to the position of the upper part of the spoiler forming part (6).

2. The injection mold for an automotive spoiler with a tortuous cooling system according to claim 1, characterized in that, The upper multi-directional cooling structure (8) and the injection molded part (9) are arranged alternately.

3. The injection mold for an automotive spoiler with a tortuous cooling system according to claim 2, characterized in that, The lower modular multi-directional cooling structure (7) includes a left cooling pipe (10), a middle cooling pipe (11), and a right cooling pipe (12) on the lower end face of the spoiler, all disposed in the lower mold (1) of the spoiler. The left cooling pipe (10), the middle cooling pipe (11), and the right cooling pipe (12) on the lower end face of the spoiler are located below the lower end forming part (5) of the spoiler.

4. The injection mold for an automotive spoiler with a tortuous cooling system according to claim 3, characterized in that, The three cooling pipes (10) on the left side of the lower end face of the spoiler, (11) in the middle of the lower end face of the spoiler, and (12) on the right side of the lower end face of the spoiler are arranged in parallel to each other.

5. The injection mold for an automotive spoiler with a tortuous cooling system according to claim 4, characterized in that, The lower mold (1) for forming the car spoiler is provided with a first curved water inlet / outlet pipe (13), a second curved water inlet / outlet pipe (14), and a third curved water inlet / outlet pipe (15). The cooling pipe (10) on the left side of the lower end face of the spoiler is connected to the first curved water inlet / outlet pipe (13). The cooling pipe (11) in the middle of the lower end face of the spoiler is connected to the second curved water inlet / outlet pipe (14). The cooling pipe (12) on the right side of the lower end face of the spoiler is connected to the first curved water inlet / outlet pipe (13).

6. The injection mold for an automotive spoiler with a tortuous cooling system according to claim 1, characterized in that, The upper modular multi-directional cooling structure (8) includes a left cooling pipe (16), a middle cooling pipe (17), and a right cooling pipe (18) on the upper surface of the spoiler, all located within the upper mold (2) of the spoiler. The left cooling pipe (16), the middle cooling pipe (17), and the right cooling pipe (18) on the upper surface of the spoiler are located above the upper molding part (6) of the spoiler.

7. The injection mold for an automotive spoiler with a tortuous cooling system according to claim 6, characterized in that, The upper mold (2) for forming the car spoiler is provided with a first curved water inlet / outlet pipe (19), a second curved water inlet / outlet pipe (20), and a third curved water inlet / outlet pipe (21). The cooling pipe (16) on the left side of the upper surface of the spoiler is connected to the first curved water inlet / outlet pipe (19), the cooling pipe (17) in the middle of the upper surface of the spoiler is connected to the second curved water inlet / outlet pipe (20), and the cooling pipe (18) on the right side of the upper surface of the spoiler is connected to the third curved water inlet / outlet pipe (21).

8. The injection mold for an automotive spoiler with a tortuous cooling system according to claim 1, characterized in that, The lower end forming part (5) of the spoiler includes a lower end forming surface (22) of the spoiler disposed in the spoiler forming protrusion (3), and the upper end forming part (6) of the spoiler includes an upper end forming surface (23) of the spoiler disposed in the spoiler forming cavity (4). The lower end forming surface (22) of the spoiler and the upper end forming surface (23) of the spoiler are directly opposite each other.

9. The injection mold for an automotive spoiler with a tortuous cooling system according to claim 1, characterized in that, The injection molded part (9) includes a plurality of injection tubes (24) disposed in the upper mold (2) for forming the car spoiler, and the injection tubes (24) are connected to the upper molding surface (23) of the spoiler.

10. The injection mold for an automotive spoiler with a tortuous cooling system according to claim 1, characterized in that, The upper mold (2) for forming the car spoiler is provided with a mold closing protrusion (25), and the lower mold (1) for forming the car spoiler is provided with a mold closing cavity (26). The shapes of the mold closing protrusion (25) and the mold closing cavity (26) are matched.

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