Carbon fiber automobile spoiler sizing mold

Abstract

The utility model provides a kind of carbon fiber automobile spoiler sizing die, including sizing die one and sizing die two, sizing die one and sizing die two between still being provided with sizing die three, the sizing die one, sizing die two and sizing die three are arc, the sizing die three is located in the inside of sizing die one and sizing die two arc, sizing die two lower end is opened with sizing recess two, sizing recess one is opened with sizing die one upper end, sizing die three arc protruding outside is provided with sizing protrusion, the sizing recess two, sizing recess one and sizing protrusion jointly form the sizing die cavity for accommodating carbon fiber spoiler, the utility model realizes one-step method preparation carbon fiber automobile spoiler;Traditional two molds are disassembled to form three molds, can be well adapted to new foam strip manufacturing carbon fiber spoiler process, simplify production process, improve efficiency, reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a carbon fiber automotive rear wing shaping mold. Background Technology

[0002] The process of inflatable molding of airbags is usually called the air-blowing molding method. First, an airbag with an inflation port is prefabricated. During molding, compressed air is injected into the airbag through the inflation port, causing the airbag to expand and allowing the carbon fiber material covering the airbag to adhere to the mold, where it is then heated and cured. This process first requires the preparation of a conformal airbag, which is then folded appropriately and inserted into the mold with the carbon fiber attached. Because the airbag needs to be made appropriately large, it can fully expand after inflation to support the carbon fiber. This process adds an extra step of airbag manufacturing, increasing costs and labor. At the same time, the airbag is prone to rupture when heated, causing product scrap, and the airbag interface is also prone to air leakage, leading to product defects. According to statistics, the defect rate of the airbag inflation method reaches about 20%.

[0003] The method of molding carbon fiber with foamed core material first involves making the core material using foaming raw materials and foaming molds, or buying pre-foamed foam boards and carving them out with a carving machine. This increases the number of process steps, significantly increasing the process cost and labor. Furthermore, the traditional directional mold consists of two parts, upper and lower, which is difficult to adapt well to the new foamed strip filling preparation process. The operation process is complicated, the production efficiency is low, and the molding quality is poor.

[0004] For relevant patent documents, please refer to: CN114603876A. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a carbon fiber car rear wing shaping mold, which enables the one-step production of carbon fiber car rear wings. It disassembles the traditional two-piece mold into three-piece mold, which can be well adapted to the new foam strip manufacturing process of carbon fiber rear wings, simplifying the production process and improving efficiency.

[0006] To solve the above problems, the technical solution adopted by this utility model is: a carbon fiber car rear wing shaping mold, including shaping mold one and shaping mold two, and shaping mold three is also provided between shaping mold one and shaping mold two. Shaping mold one, shaping mold two and shaping mold three are all arc-shaped. Shaping mold three is located inside the arc of shaping mold one and shaping mold two. Shaping mold two has a shaping groove two at its lower end, shaping mold one has a shaping groove one at its upper end, and shaping mold three has a shaping protrusion on the outer side of the arc-shaped protrusion. Shaping groove two, shaping groove one and shaping protrusion together form a shaping mold cavity for accommodating carbon fiber rear wing. Shaping mold two is pressed into shaping mold one by a first bolt, the inner side of the arc of shaping mold three is pressed into shaping mold one by a second bolt, and the outer side of the arc of shaping mold three is pressed into shaping mold one under the pressure of shaping mold two.

[0007] Preferably, the inner arc of the shaping mold is provided with a support member, which includes a support block 2 integrally formed with the shaping mold and a support block 1 detachably connected to the shaping mold.

[0008] Preferably, the shaping protrusion has sealing protrusions protruding outward on both sides.

[0009] Preferably, the second shaping mold includes large ends located on both sides and a flat strip located between the two large ends, wherein the thickness of the bottom edge of the large ends is greater than the thickness of the edge of the flat strip.

[0010] Preferably, the shaping mold has positioning ends on both sides, and the positioning ends can cooperate with the corresponding large end.

[0011] Preferably, a positioning protrusion is formed at the lower end of the large end, and a positioning groove that matches the positioning protrusion is formed at the upper end of the positioning end.

[0012] Preferably, the positioning protrusion is a semi-cylindrical shape, and the length directions of the two positioning protrusions are parallel to each other.

[0013] The beneficial effects of this utility model are as follows:

[0014] By setting a third shaping mold on the inner side of the arc between shaping mold one and shaping mold two, the inner side of the carbon fiber tail wing is supported and limited by shaping mold three, ensuring the quality of carbon fiber tail wing molding. The traditional two molds are disassembled into three molds, which can be well adapted to the process of making carbon fiber tail wing with new foam strips. Furthermore, the inner and outer arc sides of shaping mold three are tightly pressed together, ensuring the sealing and stability of the directional mold cavity and improving the quality of the finished carbon fiber tail wing. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the three-dimensional structure of the carbon fiber tail fin of this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the carbon fiber automotive rear wing shaping mold of this utility model.

[0017] Figure 3 This utility model Figure 2 A schematic diagram of the rear view structure.

[0018] Figure 4 This utility model Figure 2 A side view structural diagram.

[0019] Figure 5 This utility model Figure 2 A magnified structural diagram at point A.

[0020] Figure 6 This is an exploded structural diagram of the carbon fiber automotive rear wing molding die of this utility model.

[0021] Figure 7 This is a three-dimensional structural diagram of the molding die of this utility model.

[0022] Figure 8 This utility model Figure 7 A schematic diagram of the structure viewed from below.

[0023] Figure 9 This utility model Figure 7 A schematic diagram of the main structure.

[0024] Figure 10 This is a three-dimensional structural diagram of the shaping mold three of this utility model.

[0025] Figure 11 This utility model Figure 10 A schematic diagram of the main structure.

[0026] Figure 12 This is a three-dimensional structural diagram of the molding die of this utility model.

[0027] Figure 13 This utility model Figure 12 A top-view structural diagram.

[0028] Figure 14 This is a flowchart illustrating the manufacturing process of a carbon fiber car rear wing.

[0029] In the diagram: 100, carbon fiber tail wing; 110, enlarged section; 120, narrowed section; 200, shaping mold one; 210, support component; 211, support block one; 212, support block two; 220, shaping groove one; 230, positioning end; 300, shaping mold two; 310, shaping groove two; 320, large end; 321, positioning protrusion; 330, flat strip; 400, shaping mold three; 410, shaping protrusion; 411, sealing protrusion. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] See attached document Figure 1 - Appendix Figure 14 A manufacturing process for a carbon fiber car rear wing is disclosed, using a carbon fiber car rear wing shaping mold. The main improvements include the following modules: The mold design is improved, changing the original two-part mold to a three-part combined mold; screening the foaming raw material—epoxy foaming raw material—and making it into a paste, which is then rolled into 0.5mm sheets for later use; cutting it into strips and evenly filling the mold cavity surrounded by carbon fiber material; the carbon fiber material and the mold structure are also changed to a three-piece combination, bonded together by the pressure of the mold, the adhesive force of the resin on the carbon fiber, and the packaging material to form a complete product; this invention reduces production steps, reducing two steps to one, reducing labor time by 50%, and saving more than 30% of energy consumption. The same method can also be applied to other energy-saving and weight-reducing products.

[0032] The carbon fiber tail wing 100 is arc-shaped and is formed by hot pressing. The carbon fiber tail wing 100 includes a narrowing part 120 that protrudes outward and an enlarged part 110 that is concave inward. The upper and lower surfaces of the narrowing part 120 gradually contract and eventually form a cone-shaped apex on the outside. The enlarged part 110 is concave inside. The carbon fiber tail wing 100 has a hollow structure inside and a vertical cross-section similar to a V-shape.

[0033] The improved carbon fiber car rear wing shaping mold includes shaping mold 1 200, shaping mold 2 300, and shaping mold 3 400 sandwiched between shaping mold 1 200 and shaping mold 2 300 on the concave side. Shaping mold 1 200, shaping mold 2 300, and shaping mold 3 400 are all positioned and locked together by bolts. Shaping mold 1 200, shaping mold 2 300, and shaping mold 3 400 together form a shaping mold cavity to accommodate the raw material of the carbon fiber car rear wing. After hot pressing and forming, shaping mold 1 200, shaping mold 2 300, and shaping mold 3 400 are removed to finally obtain the shaped carbon fiber rear wing 100.

[0034] Specifically, the shaping mold 200 includes a support component 210, which includes a support block 211 and a support block 212. The support block 212 is integrally formed with the shaping mold 200. The support block 211 and the shaping mold 200 are detachably connected by bolts. Both the support block 211 and the support block 212 are horizontally arranged on the concave side of the shaping mold 200, which can provide support at the bottom and ensure the overall stability of the shaping mold 200 during processing. The support block 211 is determined according to the actual processing size and requirements. Increasing the support block 211 can improve the stability of the overall structure during processing, while reducing the support block 211 can reduce the volume and weight on both sides.

[0035] The upper end of the shaping mold 200 has a concave shaping groove 220, which forms the bottom of the shaping mold cavity and supports the carbon fiber raw material from the bottom to ensure stability during the hot pressing process. The inner wall and overall shape of the shaping groove 220 are determined according to the shape of the bottom of the carbon fiber tail wing 100.

[0036] The bottom inner wall of the second shaping mold 300 is recessed to form the second shaping groove 310. The second shaping groove 310 and the first shaping groove 220 cooperate to form the upper and lower surfaces of the shaping mold cavity. Similarly, the inner wall and overall shape of the second shaping groove 310 are determined according to the shape of the top of the carbon fiber tail wing 100.

[0037] The second shaping mold 300 includes large end 320s on both sides and a flat strip 330 between the two large end 320s. The thickness of the bottom edge of the large end 320 is greater than the thickness of the edge of the flat strip 330. Positioning ends 230 are formed on both sides of the first shaping mold 200. The positioning ends 230 can cooperate with the corresponding large end 320 to achieve preliminary positioning. At the same time, the outer edge of the first shaping mold 200 is thicker and extends upward in the vertical direction. It can cooperate with the thinner flat strip 330 to form an interception and protection structure on the outside of the flat strip 330. It can effectively intercept and protect the carbon fiber tail wing 100 material during the positioning process.

[0038] Furthermore, a positioning protrusion 321 is formed at the lower end of the large end 320, and a positioning groove that matches the positioning protrusion 321 is formed at the upper end of the positioning end 230. In the mating state, the positioning protrusion 321 and the positioning groove can cooperate to achieve initial positioning, further ensuring the stability of the clamping and positioning between the first shaping mold 200 and the second shaping mold 300.

[0039] The positioning protrusion 321 here is a semi-cylindrical shape. The two positioning protrusions 321 are parallel to each other in the length direction. During the positioning process, the second shaping mold 300 can be controlled to have a small tilt angle. First, the positioning protrusion 321 is controlled to contact the positioning groove to realize the positioning of the lateral degree of freedom of the first shaping mold 200 and the second shaping mold 300. Then, the second shaping mold 300 is controlled to gradually deflect to a horizontal state to realize the positioning of the longitudinal and vertical degrees of freedom, and finally ensure the positioning and forming of the overall structure.

[0040] By controlling the initial tilt angle of the second shaping mold 300, it is possible to avoid contact between the carbon fiber tail wing 100 material attached to the outside of the second shaping mold 300 and the surface of the first shaping mold 200 during the initial positioning process, thereby reducing the contact area and time between the second shaping mold 300 and the first shaping mold 200. After the lateral positioning is completed, the second shaping mold 300 located above is then controlled to deflect to a horizontal state for gradual and rapid positioning and clamping.

[0041] During the clamping and positioning process, the shaping mold 200 is located at the bottom and serves as a load-bearing and limiting unit. To further ensure the stability of the shaping mold 200 during the clamping and positioning process, clamps such as vises can be used to clamp and limit the load-bearing component 210 on the outside of the shaping mold 200, preventing displacement of the shaping mold 200 during the clamping and positioning process. This further ensures the stability of the overall structure during the clamping and positioning process and guarantees the quality of the finished product.

[0042] The third shaping mold 400, located between the second shaping mold 300 and the first shaping mold 200, is positioned on the concave side. It can support and limit the enlarged portion 110 of the carbon fiber tail wing 100 from the middle position, ensuring that the carbon fiber tail wing 100 has a certain thickness in the end.

[0043] Specifically, a shaping protrusion 410 is formed on the outer side of the shaping mold 3 400. The shaping protrusion 410 can form the surface of the concave side of the shaping mold cavity. According to the requirements of the carbon fiber tail wing 100 shape, the shaping mold 3 400 can be changed into the required shape.

[0044] The first molding die 200 forms a closed support structure at the bottom, the second molding die 300 forms a closed support structure at the top, and the third molding die 400 forms a closed support structure on the concave side. This structure can support and limit the raw material of the carbon fiber tail wing 100 from multiple positions, ensuring the stability of the carbon fiber tail wing 100 molding. By improving the structure of the molds, there is no need for built-in airbags for support, simplifying the processing steps. Furthermore, the first molding die 200, the second molding die 300, and the third molding die 400 can interlock and press tightly against each other after being fixed with bolts. This minimizes the entry of moisture during hot pressing and prevents the foamed core material from collapsing during heating, thus ensuring the quality of the finished carbon fiber tail wing 100.

[0045] On both sides of the shaping protrusion 410, there are sealing protrusions 411 protruding outward. The sealing protrusions 411 can form a U-shaped mating surface with the outer shaping mold 2 300 and shaping mold 1 200. While shaping and positioning the shaping mold 1 200 and shaping mold 2 300, the sealing gap can also be extended by protruding outward, which can further ensure the quality of the carbon fiber tail wing 100 extrusion molding, and further prevent moisture from entering during the heating process, thus ensuring the quality of the hot-pressed product.

[0046] A manufacturing process for a carbon fiber automotive rear wing specifically includes the following steps:

[0047] Step 1: Raw material preparation. Select the foaming raw material—epoxy foaming raw material, and make the epoxy foaming raw material into a paste. Thickeners, such as fumed silica, can be added to the foaming material. Roll it into 0.5mm sheets for later use. When using, cut it into strips to make it easier to fill the mold cavity surrounded by carbon fiber material. The design structure of carbon fiber material and corresponding shaping mold is also changed to a three-piece combination. The pressure of the mold, the adhesion of the resin on the carbon fiber, and the foaming material are bonded together to form a complete product. The carbon fiber raw material and foaming raw material are classified and sorted according to the shape of shaping mold 1 200, shaping mold 2 300, and shaping mold 3 400, namely material A, material B, and material C. The three materials with different shapes are placed in different storage containers and sorted.

[0048] Step Two: Adhere materials A, B, and C to their corresponding shaping molds 200, 300, and 400 respectively. When applying them, they must be placed in the corresponding positions of the shaping grooves and protrusions, without misalignment. Materials A, B, and C are all carbon fiber raw materials, which are long, curved sheets with a certain degree of flexibility. They are manually applied to the corresponding positions along the length of the shaping grooves and protrusions. After shaping, materials A, B, and C are pressed tightly together and then fused together after hot pressing to form the three surfaces of the carbon fiber tail wing 100.

[0049] Step 3: After the above materials are laid out, shape mold 1 200 is placed horizontally on the processing platform surface. First, shape mold 3 400 is installed in the predetermined position on the inner side of the upper end of shape mold 1 200, and shape mold 1 200 and shape mold 3 400 are locked and positioned using bolts. Positioning bolts facing upward are set on the upper end of shape mold 1 200, and bolt holes running vertically through the surface of shape mold 3 400 are opened. Multiple positioning bolts are tightened along the arc length of shape mold 1 200 and shape mold 3 400 for positioning. During the installation of positioning bolts, the bolts on both sides are first rotated to half position for initial positioning, then the positioning bolt in the middle position is inserted and tightened, and finally the positioning bolts on both sides are tightened to ensure the accuracy and stability of the overall structure positioning. The positioning bolts can be positioned by tapping or locked by thread.

[0050] It is important to note that at the point where the materials of the shaping mold 1 200 and the shaping mold 3 400 come into contact, carbon fiber strips should be inserted to fill the gaps. The carbon fiber strips must be inserted all the way in to avoid gaps or cracks that could cause abnormal cracks or other marks on the outside of the finished carbon fiber tail wing 100.

[0051] Reinforcing material, also made of carbon fiber cloth, needs to be applied to the contact area between the materials of shaping mold 1 (200) and shaping mold 3 (400). The main function of the reinforcing material is to increase the local strength of the joint. Foaming strips are also applied to the surface of shaping mold 1 (200). The foaming strips need to be evenly distributed and the quantity must be sufficient. The foaming material is located inside the carbon fiber material. During the subsequent hot pressing process, the volume of the foaming material increases due to heat, which can support the outer carbon fiber material from the inside. At the same time, the outer side of the carbon fiber material is rigidly limited by the joint limiting of shaping mold 1 (200), shaping mold 2 (300), and shaping mold 3 (400), which can prevent the carbon fiber material from deforming indefinitely. Finally, it is shaped into a carbon fiber tail wing 100 with a solid V-shaped vertical cross section.

[0052] The foaming material here is pre-manufactured as a strip material, preferably a sheet with a thickness of 0.5mm. The length is determined according to the length and curvature of the carbon fiber tail wing 100, and is usually less than 0.3 times the overall length of the carbon fiber tail wing 100. Its length dimension is smaller than the length of the carbon fiber tail wing 100. The foaming material is stacked and bonded to the surface of the carbon fiber material along the length direction of the carbon fiber material. After the foaming material is placed, the carbon fiber material on the shaping mold 200 is then folded at the corner. The carbon fiber material is also in sheet form, and the size of the sheet carbon fiber material is relatively large. The edge is bent towards the inside of the mold. On the one hand, this can gather the excess carbon fiber material and avoid abnormal edges of the carbon fiber material. At the same time, by folding at the corner along the curvature of the carbon fiber material, the inner foaming material can also be folded and bonded, covering and limiting the inner foaming material, ensuring that the foaming material expands in the center position. After the carbon fiber material is folded, a refrigerant is used for shaping to prevent the carbon fiber material from returning to its original position under its own stress, ensuring the accuracy and stability of the carbon fiber material and the foaming material after folding and shaping.

[0053] It should be noted that the sheet-like foam material here is relatively stable when not heated and will not expand. During the hot pressing process, it expands from the inside to the outside when heated.

[0054] During the processing, it is important to note that multiple layers of sheet foam need to be laid to meet the processing requirements of carbon fiber tail wing 100 with different thicknesses. At the same time, the multiple layers of sheet foam are interlocked, and the gaps between adjacent layers are located in different vertical planes. The multiple layers of sheet foam are in an interlocking state, which can enhance the stability of the sheet during the laying process, and also ensure that the gaps are located in different positions after heating. The foam material in different positions fully expands and adaptively fills the gaps, ensuring the density of the inside of the foam sheet.

[0055] The sheet foaming process is carried out according to the following steps: After the carbon fiber raw material on the surface of the shaping mold 200 is laid, the bottom first layer is laid using sheet foaming. The first foam sheet is folded in half, and the lengths of the upper and lower parts of the folded foam sheet are not the same. The longer side of the folded foam sheet is placed closer to the carbon fiber raw material. The remaining unfilled areas are then filled with foam sheets. When the length of the farthest foam sheet is greater than the remaining gap, the foam sheet is also folded or trimmed (the last foam sheet at the top is trimmed, and the rest are folded). This method allows for the rapid laying of multiple foam sheets, and the connection gaps between different layers of foam sheets are controlled to be in different vertical planes, improving the efficiency of foam sheet laying while minimizing waste of foam sheets.

[0056] The aforementioned refrigerant can be a spray refrigerant, which will not have too much impact on the surface of the foamed raw material and carbon fiber raw material, avoiding the introduction of new impurities, and can quickly set the carbon fiber raw material and foamed raw material during the processing time.

[0057] On the shaping mold 2300, attach the carbon fiber strip material along the outer edge of the unidirectional yarn, making sure the 3K yarn is exposed, and pay attention to the direction and mark it clearly.

[0058] Step 4: Cover the finished shaping mold 2 300 onto the top of shaping mold 1 200 and lock it in place with bolts. Finally, push it to one side of the press for pressure. Press it together in a heated environment and wait for the materials to bond together as one. Then, wait for the overall structure to cool naturally. Finally, remove shaping mold 1 200, shaping mold 2 300 and shaping mold 3 400, and take out the finished carbon fiber tail wing 100 inside, completing the processing and manufacturing of a carbon fiber tail wing 100.

[0059] During the closing process of the second shaping mold 300 and the first shaping mold 200, the positioning protrusions 321 on both sides are used for initial positioning. During the positioning process, the second shaping mold 300 is first tilted at a predetermined angle, and the positioning protrusions 321 are first controlled to contact the positioning groove to achieve the positioning of the lateral degree of freedom of the first shaping mold 200 and the second shaping mold 300. Then, the second shaping mold 300 is gradually deflected to a horizontal state to achieve the positioning of the longitudinal and vertical degrees of freedom, and finally ensure the positioning and forming of the overall structure. The above method can reduce the impact of contact with the outer layer of sheet foam material, ensure the stability of the multi-layer foam material, and ultimately improve the quality of the finished product.

[0060] By controlling the initial tilt angle of the second shaping mold 300, it is possible to avoid contact between the carbon fiber tail wing 100 material attached to the outside of the second shaping mold 300 and the surface of the first shaping mold 200 during the initial positioning process, thereby reducing the contact area and time between the second shaping mold 300 and the first shaping mold 200. After the lateral positioning is completed, the second shaping mold 300 located above is then controlled to deflect to a horizontal state for gradual and rapid positioning and clamping.

[0061] After the second molding die 300 is closed, the carbon fiber raw materials on the surfaces of the first molding die 200, the second molding die 300, and the third molding die 400 can tightly press the inner foam material together. At the same time, the three carbon fiber raw materials press against each other and fuse together in the subsequent hot pressing process to form the three arc-shaped long sides of the carbon fiber tail wing. The inner foam material expands after being heated. During the hot pressing process, the inner side of the carbon fiber tail wing is squeezed by the foam material and fits against the inner wall of the first molding die 200, the second molding die 300, and the third molding die 400. At the same time, the first molding die 200, the second molding die 300, and the third molding die 400 are in a relatively fixed position under the fixation of bolts, which limits the carbon fiber raw materials from the outside. After hot pressing and heat preservation for a certain period of time, the foam material fully expands and the outer carbon fiber raw materials press against each other and fuse together, finally forming a smooth surface and a solid inner carbon fiber tail wing 100.

[0062] The foamed material is irreversible after heating and is in a state of normal expansion, which plays an effective supporting role on the inside, ensuring the stability of the carbon fiber tail wing 100 after molding and cooling.

[0063] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A carbon fiber automotive rear wing shaping mold, comprising shaping mold one (200) and shaping mold two (300), characterized in that: A third shaping mold (400) is also provided between shaping mold one (200) and shaping mold two (300). The shaping mold one (200), shaping mold two (300) and shaping mold three (400) are all arc-shaped. The shaping mold three (400) is located inside the arc of shaping mold one (200) and shaping mold two (300). The lower end of shaping mold two (300) has shaping groove two (310), the upper end of shaping mold one (200) has shaping groove one (220), and the outer side of the arc-shaped protrusion of shaping mold three (400) has shaping protrusion (410). The shaping groove two (310), shaping groove one (220) and shaping protrusion (410) together form a shaping mold cavity for accommodating carbon fiber tail wing (100). The second shaping mold (300) is pressed against the first shaping mold (200) by the first bolt. The inner arc of the third shaping mold (400) is pressed against the first shaping mold (200) by the second bolt. The outer arc of the third shaping mold (400) is pressed against the first shaping mold (200) under the extrusion of the second shaping mold (300).

2. The carbon fiber automotive rear wing shaping mold according to claim 1, characterized in that, The inner side of the first molding die (200) is provided with a support member (210). The support member (210) includes a support block two (212) integrally formed with the first molding die (200), and also includes a support block one (211) detachably connected to the first molding die (200).

3. The carbon fiber automotive rear wing shaping mold according to claim 1, characterized in that, The shaping protrusion (410) has sealing protrusions (411) that protrude outward on both sides.

4. The carbon fiber automotive rear wing shaping mold according to claim 1, characterized in that, The second shaping mold (300) includes large end (320) on both sides and a flat strip (330) between the two large end (320), the thickness of the bottom edge of the large end (320) is greater than the thickness at the edge of the flat strip (330).

5. The carbon fiber automotive rear wing shaping mold according to claim 4, characterized in that, The shaping mold (200) has positioning ends (230) formed on both sides, and the positioning ends (230) can cooperate with the corresponding large end (320).

6. The carbon fiber automotive rear wing shaping mold according to claim 5, characterized in that, The lower end of the large end (320) has a positioning protrusion (321), and the upper end of the positioning end (230) has a positioning groove that matches the positioning protrusion (321).

7. A carbon fiber automotive rear wing shaping mold according to claim 6, characterized in that, The positioning protrusion (321) is a semi-cylindrical shape, and the length directions of the two positioning protrusions (321) are parallel to each other.

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