Integrated composite material I-shaped reinforcing rib co-curing forming mold

Abstract

The invention provides an integrated composite material I-shaped reinforcing rib co-curing forming die. The integrated composite material I-shaped reinforcing rib co-curing forming die comprises a bottom die, a left forming main die, a right forming main die and an upper cover plate. The left forming main die is arranged on the bottom die and is provided with a first mounting groove; the right forming main die is arranged on the bottom die and is opposite to the left forming main die, and a second mounting groove is formed in the right forming main die; the upper cover plate is arranged in the first mounting groove and the second mounting groove; wherein the bottom die, the left forming main die, the right forming main die and the upper cover plate are encircled to form a cavity for forming the I-shaped reinforcing rib, the left forming main die and the right forming main die are steel dies, and the upper cover plate is a soft die. Accurate manufacturing of the reinforcing rib can be achieved, and on the basis that the forming quality and forming precision of the reinforcing rib are further improved, the production cost is reduced, the operation steps are simplified, and the manual operation time is saved.

Description

Technical Field

[0001] This invention relates to the field of composite material manufacturing technology, and more specifically, to an integral composite material I-shaped reinforcing rib co-curing molding die. Background Technology

[0002] Composite materials, with their typical advantages such as high strength and lightweight, are increasingly being used in aerospace, automotive, and shipbuilding industries. Among these applications, stiffened wall panels are a major form of composite material component manufacturing, significantly contributing to reduced product weight, increased driving range, and optimized energy efficiency. Consequently, the manufacturing industry is placing increasingly higher demands on the molding quality and production efficiency of composite stiffened wall panels and other components. Mold research is also gradually shifting towards reducing production costs, improving efficiency, and simplifying processing steps to meet the needs of large-scale production.

[0003] Existing composite material reinforced panel molding methods mainly include co-bonding and co-curing. Among them, the advantage of co-curing molds is that they can achieve one-time integral molding of the reinforcing ribs and skin structure, eliminating the need for subsequent processes such as gluing and sanding. This helps to reduce assembly errors, improve the integrity and load-bearing capacity of the overall structure, and shorten the production cycle and improve production efficiency.

[0004] Existing co-curing molding dies still have several problems: First, the demolding process is cumbersome, requiring the handling of numerous components. Second, mold preparation is difficult and time-consuming. Many components require replacement of the release material before assembly, which is labor-intensive for composite panel molding processes with numerous and long reinforcing ribs. Furthermore, the removal of release material after each use is manpower and time-consuming, hindering production efficiency. Third, the large number of mold components leads to significant cumulative errors during assembly. Manual mold assembly inevitably introduces minor positioning errors; the more components there are, the greater the accumulated error between operation steps. Fourth, economic efficiency is low. The side baffles in existing molds do not participate in the final co-curing of the component structure; they are only used as pre-formed components of the I-beam ribs before being placed in the can for molding. Each canning process also consumes a large amount of uncured AIRPAD rubber, hindering cost reduction. Therefore, existing I-beam reinforcing rib co-curing molds still have considerable room for improvement. Summary of the Invention

[0005] (a) Technical problems to be solved The technical problem to be solved by the present invention is that existing co-curing molding molds have problems such as complicated demolding steps, difficult mold preparation, long time consumption, large cumulative errors in the assembly process, and low economic benefits.

[0006] (II) Technical Solution To achieve the above objectives, the technical solution adopted by the present invention is as follows: A co-curing mold for integral composite material I-shaped reinforcing ribs is provided, comprising a bottom mold, a left main molding mold, a right main molding mold, and a top cover plate. The left main molding mold is disposed on the bottom mold and has a first mounting groove. The right main molding mold is disposed on the bottom mold and is opposite to the left main molding mold, and has a second mounting groove. The top cover plate is disposed within the first and second mounting grooves. The bottom mold, the left main molding mold, the right main molding mold, and the top cover plate together form a cavity for molding the I-shaped reinforcing rib. The left and right main molding molds are steel molds, and the top cover plate is a flexible mold. This technical solution achieves an integral design, reduces the number of parts, and lowers assembly errors. The steel mold provides stability, and the flexible mold enhances sealing and adaptability, thereby improving molding accuracy and efficiency.

[0007] Preferably, the top surface of the upper cover plate is 1 mm to 5 mm higher than the top surface of the left forming main mold, ensuring that pressure can be evenly applied to the I-shaped reinforcing rib through the upper cover plate. After the upper cover plate is removed, the top part of the forming main mold above the I-shaped rib is divided into demolding lever points. During demolding, the main mold can be easily separated from the I-shaped rib by tapping the protruding part of the top surface of the forming main mold, simplifying the operation, reducing tool dependence, and improving demolding safety.

[0008] Preferably, the top cover plate consists of an intermediate layer and outer layers disposed on both sides of the intermediate layer. The outer layers are vulcanized AIRPAD rubber layers, and the intermediate layer is a multi-layer carbon fiber prepreg or a multi-layer glass fiber prepreg. Based on the characteristics of the I-beam reinforcing rib structure, the dimensional changes of the composite material's I-beam reinforcing rib structure in the transverse direction are relatively small before and after curing; the main dimensional changes are in the vertical direction. The top cover plate is disposed in the vertical direction and is formed by a composite of multi-layer carbon fiber / glass fiber prepreg and AIRPAD rubber layers. The multi-layer carbon fiber / glass fiber prepreg has a certain rigidity, enabling it to withstand high-pressure environments and achieve pressure equalization. The AIRPAD rubber layer has a certain flexibility, allowing it to adapt to pressure during curing, fill tiny gaps, and reduce defects.

[0009] Preferably, the bottom width of the first mounting groove is equal to the width of the upper left flange of the I-shaped reinforcing rib, and the bottom width of the second mounting groove is equal to the width of the upper right flange of the I-shaped reinforcing rib.

[0010] Preferably, the left forming main mold has a threaded hole for demolding on its side opposite to the right forming main mold. This technical solution enables mechanical demolding using standard demolding tools, replacing manual hammering, reducing labor intensity, and improving demolding efficiency, and is especially suitable for large or deep molds.

[0011] Preferably, the right forming main mold has a threaded hole for demolding on its side opposite to the left forming main mold. This technical solution enables mechanical demolding using standard demolding tools, replacing manual hammering, reducing labor intensity, and improving demolding efficiency, and is especially suitable for large or deep molds.

[0012] Preferably, the left forming main mold and the right forming main mold are made of metal.

[0013] Preferably, the left forming main mold is further provided with a first vertical groove and a first bottom horizontal groove, one end of the first vertical groove is connected to the first mounting groove, and the other end of the first vertical groove is connected to the first bottom horizontal groove. The right forming main mold is further provided with a second vertical groove and a second bottom horizontal groove, one end of the second vertical groove is connected to the second mounting groove, and the other end of the second vertical groove is connected to the second bottom horizontal groove.

[0014] Preferably, the width of the first bottom transverse groove is equal to the width of the lower left flange of the I-shaped reinforcing rib, and the bottom width of the second bottom transverse groove is equal to the width of the lower right flange of the I-shaped reinforcing rib.

[0015] Preferably, the depth of the first vertical groove and the depth of the second vertical groove are both half the web thickness of the I-shaped reinforcing rib.

[0016] (III) Beneficial Effects The above-described technical solution of the present invention has at least the following advantages: 1. The integrated composite material I-shaped reinforcing rib co-curing molding mold provided by the present invention has a cavity size equal to the size of the I-shaped reinforcing rib to be formed. The molding is carried out using a net size mold, and the component does not need to be processed by material reduction after molding, thus improving manufacturing efficiency.

[0017] 2. This invention achieves an integrated design for the co-curing molding die of the I-beam reinforcing ribs. This design reduces the number of parts to be disassembled during demolding, simplifies the demolding process, and allows the die to bear force as a whole, making it easier to disassemble. 3. This invention greatly reduces the workload of mold preparation and improves production efficiency. It eliminates the tedious overall assembly operation of the main molding mold in the preparation of the curing process, significantly saves labor costs, shortens the mold preparation time, and can greatly improve production efficiency. 4. The mold of the present invention has fewer components, resulting in less cumulative error during assembly and improving the forming accuracy of the I-shaped reinforcing rib; 5. This invention reduces the use and consumption of auxiliary materials, significantly lowers production costs, and has high economic benefits. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the integrated composite material I-shaped reinforcing rib co-curing molding die provided in an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of the I-shaped reinforcing rib provided in an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of a typical I-beam reinforcing rib co-curing mold provided by the proportion.

[0022] The labels for the attached figures are as follows: 10. I-shaped reinforcing rib; 11. Upper left flange; 12. Upper right flange; 13. Lower left flange; 14. Lower right flange; 15. Web plate; 1. Bottom mold; 2. Left main forming mold; 3. Right main forming mold; 4. Top cover plate; 5. Cavity; 6. Threaded hole for demolding; 21. First mounting groove; 22. First vertical groove; 23. First bottom horizontal groove; 31. Second mounting groove; 32. Second vertical groove; 33. Second bottom horizontal groove; 100. Bottom plate mold; 200. Left forming mold; 300. Right forming mold; 400. Top mold; 500. Upper left stop bar; 600. Upper right stop bar; 700. Left side baffle; 800. Right side baffle; 900. Forming cavity. Detailed Implementation

[0023] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0024] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this invention will be described in more detail below with reference to specific embodiments: like Figure 1 and Figure 2 As shown, this embodiment of the invention provides an integral composite material I-shaped reinforcing rib co-curing molding die, including a bottom mold 1, a left molding main mold 2, a right molding main mold 3, and an upper cover plate 4; the left molding main mold 2 is disposed on the bottom mold 1 and has a first mounting groove 21; the right molding main mold 3 is disposed on the bottom mold 1 and is opposite to the left molding main mold 2, and has a second mounting groove 31; the upper cover plate 4 is disposed in the first mounting groove 21 and the second mounting groove 31; wherein, the bottom mold 1, the left molding main mold 2, the right molding main mold 3, and the upper cover plate 4 together form a cavity 5 for molding the I-shaped reinforcing rib, the left molding main mold 2 and the right molding main mold 3 are steel molds, and the upper cover plate 4 is a soft mold.

[0027] In one embodiment, the top surface of the upper cover plate 4 is 1 mm to 5 mm higher than the top surface of the left forming main mold 2.

[0028] In one embodiment, the top cover plate 4 consists of an intermediate layer and outer layers disposed on both sides of the intermediate layer. The outer layers are vulcanized AIRPAD rubber layers, and the intermediate layer is a multi-layer carbon fiber prepreg or a multi-layer glass fiber prepreg.

[0029] In one embodiment, the bottom width of the first mounting groove 21 is equal to the width of the upper left flange 11 of the I-shaped reinforcing rib 10, and the bottom width of the second mounting groove 31 is equal to the width of the upper right flange 12 of the I-shaped reinforcing rib 10.

[0030] In one embodiment, the left forming main mold 2 has a demolding threaded hole 6 on the side opposite to the right forming main mold 3.

[0031] In one embodiment, the right forming main mold 3 has a demolding threaded hole 6 on the side opposite to the left forming main mold 2.

[0032] In one embodiment, the left forming main mold 2 and the right forming main mold 3 are made of metal.

[0033] In one embodiment, the left forming main mold 2 is further provided with a first vertical groove 22 and a first bottom horizontal groove 23. One end of the first vertical groove 22 is connected to the first mounting groove 21, and the other end of the first vertical groove 22 is connected to the first bottom horizontal groove 23. The right forming main mold 3 is further provided with a second vertical groove 32 and a second bottom horizontal groove 33. One end of the second vertical groove 32 is connected to the second mounting groove 31, and the other end of the second vertical groove 32 is connected to the second bottom horizontal groove 33.

[0034] In one embodiment, the width of the first bottom transverse groove 23 is equal to the width of the lower left flange 13 of the I-shaped reinforcing rib 10, and the bottom width of the second bottom transverse groove 32 is equal to the width of the lower right flange 14 of the I-shaped reinforcing rib 10.

[0035] In one embodiment, the depth of the first vertical groove 22 and the depth of the second vertical groove 32 are both half the thickness of the web 15 of the I-shaped reinforcing rib 10.

[0036] The following are specific embodiments and comparative examples provided by the present invention: Comparative Example See a typical co-curing mold for I-beam reinforcing ribs. Figure 3 Its components include a base mold 100, a left forming mold 200, a right forming mold 300, a top mold 400, a left upper baffle 500, a right upper baffle 600, a left baffle 700, and a right baffle 800 made of metal. After the above components are assembled, they enclose to form a forming cavity 900 for forming I-shaped reinforcing ribs.

[0037] Although this mold has eliminated the need for extra width allowance at the top and bottom edges of reinforcing ribs and eliminated the need for pre-treatment molds, thus simplifying the molding process to some extent, some problems still exist: First, the demolding process is cumbersome, involving many parts. After the ribs are pre-formed and before co-curing, the left baffle 700 and right baffle 800 need to be removed. After co-curing, demolding requires removing the top mold 400, the upper left baffle 500, the upper right baffle 600, the left forming mold 200, and the right forming mold 300, each with a different removal direction and method, requiring numerous auxiliary tools and making the operation inconvenient. Secondly, mold preparation is difficult and time-consuming. The top mold (400), upper left baffle (500), upper right baffle (600), left baffle (700), and right baffle (800) all require replacement of the release material before assembly. This involves a significant workload for the molding process of composite panel parts with numerous and long reinforcing ribs. Furthermore, the removal of release material is required after each use, consuming considerable manpower and time, which is detrimental to improving production efficiency.

[0038] Third, the mold has many parts, leading to a large cumulative error during assembly. Manual mold assembly inevitably introduces minor positioning errors; the more components there are, the greater the accumulated error between operational steps.

[0039] Fourth, the economic efficiency is low. The left baffle 700 and right baffle 800 do not participate in the final co-curing of the part structure; they are only used as pre-formed components of the I-beam ribs after assembly. Uncured AIRPAD rubber is used to seal the openings at the lower edges of the corresponding I-beam reinforcing ribs in the left molding main mold 2 / right molding main mold 3 to prevent resin leakage. Furthermore, each insertion of the side baffles into the mold requires a large amount of uncured AIRPAD rubber and release material. A significant portion of this mold does not participate in the final part structure, and each curing cycle consumes a large amount of auxiliary materials, which is detrimental to reducing production costs. Therefore, the existing co-curing mold for I-beam reinforcing ribs still has considerable room for improvement.

[0040] Example 1 The I-shaped reinforcing rib 10 has a length of 1000 mm, an upper edge width of 20 mm, an upper edge thickness of 3 mm, a lower edge width of 50 mm, a lower edge thickness of 3 mm, a web thickness of 3 mm, a web height of 40 mm, and a flat lower edge. It is prepared using the integrated composite material I-shaped reinforcing rib co-curing molding die provided by this invention.

[0041] (1) The left forming main mold 2 is made of Q235 steel, with a length of 1000 mm and a bottom width of 23.5 mm. The left forming main mold 2 has a first step and a second step. The upper surface of the first step is 15 mm wide and 46 mm high. The upper surface of the second step is 8.5 mm wide and 40 mm high. The left side of the left forming main mold 2 has no demolding thread hole. The demolding is performed by tapping the upper surface of the left forming main mold 2, which is higher than the upper edge of the I-shaped reinforcing rib. The two right sides of the left forming main mold 2 are flat and are respectively attached to the web and the left side of the upper edge of the I-shaped reinforcing rib. The lower surface is attached to the upper surface of the left flange of the lower edge of the corresponding I-shaped reinforcing rib. (2) The right forming main mold 3 is made of Q235 steel, with a length of 1000 mm and a bottom width of 23.5 mm. The right forming main mold 3 has a third step and a fourth step. The upper surface of the third step is 15 mm wide and 46 mm high. The upper surface of the fourth step is 8.5 mm wide and 40 mm high. The left side of the right forming main mold 3 has no demolding thread hole. The demolding is performed by tapping the upper surface of the right forming main mold 3 above the upper edge of the I-shaped reinforcing rib. Both left sides of the right forming main mold 3 are flat and are respectively attached to the right side of the web and upper edge of the I-shaped reinforcing rib. The lower surface is attached to the upper surface of the right flange of the lower edge of the corresponding I-shaped reinforcing rib.

[0042] (3) The upper cover plate 4 is made of 16 layers of carbon fiber prepreg. Its upper and lower surfaces have the upper edge of the I-shaped reinforcing ribs. The length is 1000 mm, the width is 20 mm, and the thickness is 4 mm. After assembly, its height is 2 mm higher than the upper surface of the left molding main mold 2 and the right molding main mold 3. The specific molding steps are as follows: First, skin prepreg is laid on the bottom mold 1 and pre-compacted to obtain a skin preform. Reinforcing rib prepreg is laid on the surface of the left forming main mold 2 and pre-compacted to obtain a left C-shaped preform. Reinforcing rib prepreg is laid on the surface of the right forming main mold 3 and pre-compacted to obtain a right C-shaped preform. Reinforcing rib prepreg is laid on the flat mold and pre-compacted to obtain a flat preform. R-corner filling prepreg is prepared. The left forming main mold 2 with the left C-shaped preform, the right forming main mold 3 with the right C-shaped preform, the upper flat preform, the lower flat preform, the R-corner filling prepreg, and the upper cover plate are assembled to obtain an I-shaped rib preform assembly. The I-shaped rib preform assembly is then combined with the bottom mold 1 with a dummy part having the same surface after skin curing to form a rib preform assembly. The surface of the skin dummy part and the I-shaped rib are consistent. After assembly, auxiliary materials are placed, vacuum sealed, and preformed in a can. The preforming process should be determined based on the adaptability of the prepreg process: while ensuring internal quality, the stiffener web should be compressed to the necessary thickness to prevent the stiffener thickness from being affected by chemical compression during co-curing, which could lead to insufficient precision in stiffener position control. The preformed I-shaped stiffener preform is combined with the skin preform, auxiliary materials are placed, vacuum-sealed, and then placed in an autoclave for co-curing. After co-curing, the top cover plate 4 is removed, and the side end face of the first mounting groove 21 is tapped to demold the left main mold 2. Then, the side end face of the second mounting groove 31 is tapped to demold the right main mold 3. Finally, after demolding the bottom mold, the composite material stiffened wall panel structure is obtained.

[0043] Example 2 The I-shaped reinforcing rib is 2200 mm long, 30 mm wide at the top, and 4 mm thick at the top; it is 80 mm wide at the bottom and 4 mm thick at the bottom; the web is 4 mm thick and 60 mm high; the bottom edge is curved. It is prepared using the integrated composite material I-shaped reinforcing rib co-curing molding die provided by this invention.

[0044] (1) The left forming main mold 2 is made of Q235 steel, with a length of 2200 mm and a bottom width of 38 mm. The left forming main mold 2 has a first step and a second step. The upper surface of the first step is 25 mm wide and 66 mm high. The upper surface of the second step is 13 mm wide and 60 mm high. The left side of the left forming main mold 2 has 3 demolding threaded holes 6 for demolding. The two right sides of the left forming main mold 2 are flat and are respectively attached to the left side of the web of the reinforcing rib and the upper edge. The lower surface profile is attached to the upper surface of the left flange of the lower edge of the corresponding reinforcing rib. (2) The right forming main mold 3 is made of Q235 steel, with a length of 2200 mm and a bottom width of 38 mm. The right forming main mold 3 has a third step and a fourth step. The upper surface of the third step is 25 mm wide and 66 mm high. The upper surface of the fourth step is 13 mm wide and 60 mm high. The left side of the right forming main mold 3 has 3 demolding threaded holes 6 for demolding. The two left sides of the right forming main mold 3 are both flat and are respectively attached to the right side of the web of the reinforcing rib and the upper edge. The lower surface profile is attached to the upper surface of the right flange of the lower edge of the corresponding reinforcing rib.

[0045] (3) The upper cover plate 4 is composed of three layers of materials. The upper and lower layers are Airpad rubber, and the middle layer is composed of 8 layers of carbon fiber prepreg. Its upper and lower surfaces have the upper edge of the I-shaped reinforcing ribs. It is 2200 mm long, 20 mm wide, and 4 mm thick. After assembly, its height is 2 mm higher than the upper surface of the left molding main mold 2 and the right molding main mold 3.

[0046] The specific molding steps are as follows: First, skin prepreg is laid on the bottom mold 1 and pre-compacted to obtain a skin preform. Reinforcing rib prepreg is laid on the surface of the left forming main mold 2 and pre-compacted to obtain a left C-shaped preform. Reinforcing rib prepreg is laid on the surface of the right forming main mold 3 and pre-compacted to obtain a right C-shaped preform. Reinforcing rib prepreg is laid on the flat mold and pre-compacted to obtain a flat preform. R-corner filling prepreg is prepared. The left forming main mold 2 with the left C-shaped preform, the right forming main mold 3 with the right C-shaped preform, the upper flat preform, the lower flat preform, the R-corner filling prepreg, and the upper cover plate are assembled to obtain an I-shaped rib preform assembly. The I-shaped rib preform assembly is then combined with the bottom mold 1 with a dummy part having the same surface after skin curing to form a rib preform assembly. The surface of the skin dummy part and the I-shaped rib are consistent. After assembly, auxiliary materials are placed, vacuum sealed, and preformed in a can. The preforming process should be determined based on the adaptability of the prepreg process: While ensuring internal quality, the stiffener web should be compressed to the necessary thickness to prevent the stiffener thickness from being affected by chemical compression during co-curing, which could lead to insufficient precision in stiffener position control. The preformed I-shaped stiffener preform is then combined with the skin preform, auxiliary materials are placed, and it is vacuum-sealed and placed in an autoclave for co-curing. After co-curing, the top cover plate 4 is removed, and the demolding tool is connected to the demolding threaded hole 6 of the left main mold 2. The left main mold 2 is then demolded using the demolding tool. Next, the demolding tool is connected to the demolding threaded hole 6 of the right main mold 3. Finally, after demolding the bottom mold, the co-cured composite material stiffened wall panel structure is obtained.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mold for co-curing and molding integrated composite material I-shaped reinforcing ribs, characterized in that, include: Bottom mold; A left forming main mold is disposed on the bottom mold, and the left forming main mold is provided with a first mounting groove; The right forming main mold is disposed on the bottom mold and is opposite to the left forming main mold. The right forming main mold is provided with a second mounting groove. The upper cover plate is disposed in the first mounting groove and the second mounting groove; The bottom mold, the left forming main mold, the right forming main mold, and the upper cover plate together form a cavity for forming I-shaped reinforcing ribs. The left forming main mold and the right forming main mold are steel molds, and the upper cover plate is a soft mold.

2. The integral composite material I-shaped reinforcing rib co-curing molding die as described in claim 1, characterized in that, The top surface of the upper cover plate is 1 mm to 5 mm higher than the top surface of the left forming main mold.

3. The integrated composite material I-shaped reinforcing rib co-curing molding die as described in claim 1, characterized in that, The top cover is formed by stacking and combining vulcanized AIRPAD rubber layers, multi-layer carbon fiber prepreg or multi-layer glass fiber prepreg, and vulcanized AIRPAD rubber layers.

4. The integral composite material I-shaped reinforcing rib co-curing molding die as described in claim 1, characterized in that, The bottom width of the first mounting groove is equal to the width of the upper left flange of the I-shaped reinforcing rib, and the bottom width of the second mounting groove is equal to the width of the upper right flange of the I-shaped reinforcing rib.

5. The integral composite material I-shaped reinforcing rib co-curing molding die as described in claim 1, characterized in that, The left forming main mold has a demolding threaded hole on its side opposite to the right forming main mold.

6. The integral composite material I-shaped reinforcing rib co-curing molding die as described in claim 1, characterized in that, The right forming main mold has a demolding threaded hole on its side opposite to the left forming main mold.

7. The integral composite material I-shaped reinforcing rib co-curing molding die as described in claim 1, characterized in that, The left and right forming main molds are made of metal.

8. The integral composite material I-shaped reinforcing rib co-curing molding die as described in claim 1, characterized in that, The left forming main mold is also provided with a first vertical groove and a first bottom horizontal groove. One end of the first vertical groove is connected to the first mounting groove, and the other end of the first vertical groove is connected to the first bottom horizontal groove. The right forming main mold is also provided with a second vertical groove and a second bottom horizontal groove. One end of the second vertical groove is connected to the second mounting groove, and the other end of the second vertical groove is connected to the second bottom horizontal groove.

9. The integrated composite material I-shaped reinforcing rib co-curing molding die as described in claim 8, characterized in that, The width of the first bottom transverse groove is equal to the width of the lower left flange of the I-shaped reinforcing rib, and the bottom width of the second bottom transverse groove is equal to the width of the lower right flange of the I-shaped reinforcing rib.

10. The integral composite material I-shaped reinforcing rib co-curing molding die as described in claim 8, characterized in that, The depth of the first vertical groove and the depth of the second vertical groove are both half the web thickness of the I-shaped reinforcing rib.

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