Carbon fiber mold for forming automobile rear bumper

Abstract

The invention relates to the field of carbon fiber molds, in particular to a carbon fiber mold for forming an automobile rear bumper, which comprises a bottom mold, and the bottom mold is provided with a main forming groove matched with the outline of the automobile rear bumper; a first side wing forming piece is arranged at the top of the bottom die and used for accurately forming a side wing structure on one side of an automobile rear bumper. A second side wing forming piece is arranged at the bottom of the bottom die and used for accurately forming a side wing structure on the other side of the automobile rear bumper. An end forming piece is arranged at the end of the bottom die and used for forming the shape of the end of the automobile rear bumper. The first side wing forming piece, the second side wing forming piece, the end forming piece and the main forming groove are jointly enclosed to form a cavity used for forming the rear bumper of the automobile. The forming precision is improved, the mold stability is enhanced, and the service life is prolonged.

Description

Technical Field

[0001] The present application relates to the field of carbon fiber molds, and in particular to a carbon fiber mold for molding a rear bumper of an automobile. Background Art

[0002] In the current automobile manufacturing industry, lightweighting has become an important development trend to reduce fuel consumption and improve vehicle performance. Carbon fiber resin materials are widely used in the manufacture of automobile parts, especially the manufacture of automobile rear bumpers, due to their high strength, low density and good corrosion resistance. As an important part of the automobile body, the rear bumper not only has the function of protecting the rear structure of the vehicle, but also affects the appearance and safety of the entire vehicle. Therefore, how to ensure the molding accuracy and quality of the rear bumper has become one of the key issues.

[0003] The overall structure of the rear bumper of a car is usually an irregular curved surface structure to meet the requirements of vehicle appearance and aerodynamics. At the same time, various bolt holes and first positioning holes need to be set on the rear bumper to facilitate connection and positioning with other components at the rear of the car. In addition, there are multiple raised connectors on the edge of the rear bumper, which are used to match the grooves at the rear of the car to firmly fix the rear bumper to the rear of the car.

[0004] When molding complex curved structures, the carbon fiber molds in the related art often have difficulty in ensuring the accuracy and consistency of the mold cavity. This may lead to uneven curved surfaces of the bumper after molding, or even deformation. In addition, for details such as bolt holes, first positioning holes, and connectors on the bumper, the molds in the related art also have certain difficulties in molding, which are prone to dimensional deviations or inaccurate shapes. Summary of the invention

[0005] In order to overcome the above technical problems, the present application provides a carbon fiber mold for molding a rear bumper of an automobile.

[0006] The carbon fiber mold for molding a rear bumper of an automobile provided in the present application adopts the following technical solution: A carbon fiber mold for molding a rear bumper of an automobile comprises a bottom mold, on which a main molding groove matching the outer contour of the rear bumper of the automobile is formed; a first side wing molding piece is arranged on the top of the bottom mold, and the first side wing molding piece is used to accurately mold the side wing structure on one side of the rear bumper of the automobile; a second side wing molding piece is arranged on the bottom of the bottom mold, and the second side wing molding piece is used to accurately mold the side wing structure on the other side of the rear bumper of the automobile; an end molding piece is arranged at the end of the bottom mold, and the end molding piece is used to mold the end shape of the rear bumper of the automobile; the first side wing molding piece, the second side wing molding piece, the end molding piece and the main molding groove are enclosed together to form a cavity for molding the rear bumper of the automobile.

[0007] By adopting the above technical scheme, the main molding groove on the bottom mold is consistent with the contour of the rear bumper of the car, ensuring the high precision and consistency of the main cavity, and avoiding the problem of uneven or deformed bumper surface after molding. The first wing molding piece and the second wing molding piece are respectively located at the top and bottom of the bottom mold, which can accurately mold the wing structure on both sides of the rear bumper of the car, and improve the shape accuracy of the wing part. The end molding piece is arranged at the end of the bottom mold, which can accurately mold the end shape of the rear bumper of the car, ensuring that the details of the end meet the requirements. The first wing molding piece, the second wing molding piece, the end molding piece and the main molding groove together enclose the cavity, making the cavity structure of the entire mold more complete and accurate, and improving the molding quality. In addition, this mold is suitable for the process of pasting materials and baking molding, which improves production efficiency and product quality. The main molding groove, the first wing molding piece, the second wing molding piece and the end molding piece on the bottom mold work together to form a complete cavity, ensuring the accurate molding of various parts of the rear bumper of the car.

[0008] Optionally, a curved surface molding groove for molding a rear bumper of an automobile is formed on a side of the first wing molding piece close to the molding cavity, and the curved surface molding groove is a symmetrical structure.

[0009] By adopting the above technical solution, a curved surface forming groove for forming the rear bumper of the automobile is provided on one side of the first side wing forming part close to the cavity, and the curved surface forming groove is a symmetrical structure. The side wing structures on both sides of the rear bumper of the automobile can be formed more accurately, ensuring the symmetry and aesthetics of the rear bumper of the automobile. At the same time, the symmetrical structure also helps to improve the stability and service life of the mold, and reduces the production error caused by asymmetry.

[0010] Optionally, a plurality of hanging rings are provided on the first wing forming member.

[0011] By adopting the above technical solution, the multiple lifting rings provided on the first wing forming part can facilitate the handling and installation of the mold, thereby improving the operation efficiency and safety. The lifting rings make the mold more stable during the lifting process, thereby reducing the risk of mold damage caused by improper operation.

[0012] Optionally, the second wing molding member includes a plurality of molding seats, and the plurality of molding seats are all fixed on the bottom mold, and each of the molding seats is provided with a molding component for molding the plug-in member.

[0013] By adopting the above technical solution, the second wing molding is composed of a plurality of molding seats, each of which is fixed on the bottom mold and is provided with a molding assembly for molding the plug-in part, so that the molding of the plug-in part is more accurate and stable, and the precision and consistency of the mold are improved, thereby ensuring that the position of the molded automobile rear bumper plug-in part is accurate and the shape is consistent, and the connection reliability between the rear bumper and the rear of the automobile is enhanced.

[0014] Optionally, the molding assembly includes a plurality of molding protrusions, and the plurality of molding protrusions are fixed on the molding seat. A molding groove is formed on one side of the molding protrusion close to the main molding groove, and the molding groove is adapted to the shape of the connector.

[0015] By adopting the above technical solution, the molding assembly includes a plurality of molding protrusions, which are fixed on the molding seat, and each molding protrusion is provided with a molding groove on one side close to the main molding groove, and the shape of the molding groove is adapted to the shape of the plug-in component. The molding protrusion can accurately mold the plug-in component on the bumper, ensuring that the shape and position of the plug-in component are highly consistent, thereby improving the stability and reliability of the bumper installation.

[0016] Optionally, a plurality of first positioning grooves are formed on the bottom mold, the forming seats correspond to the first positioning grooves one by one, and the outer side walls of the forming seats are connected to the inner side walls of the first positioning grooves.

[0017] By adopting the above technical solution, the first positioning groove enables the molding seat to be accurately positioned, ensuring the relative position between the molding seat and the bottom mold is stable, thereby improving the molding accuracy and consistency. In addition, the outer wall of the molding seat is in close contact with the inner wall of the first positioning groove, further enhancing the stability of the structure, preventing displacement during the molding process, and ensuring the size and shape accuracy of the molded part.

[0018] Optionally, a second positioning groove is formed at the end of the bottom mold, and the outer side wall of the end forming piece abuts against the inner side wall of the second positioning groove.

[0019] By adopting the above technical solution, the outer wall of the end molded part abuts against the inner wall of the second positioning groove of the bottom mold, ensuring the precise positioning between the end molded part and the bottom mold, improving the molding accuracy and consistency, avoiding molding errors caused by position offset, and thus improving the molding quality of the rear bumper of the car.

[0020] Optionally, an end of the first side wing forming piece extends out of an end of the bottom mold, a top of the end forming piece abuts against a surface of the first side wing forming piece, and the end forming piece is fixedly connected to the first side wing forming piece.

[0021] By adopting the above technical solution, the end of the first side wing molding part extends out of the end of the bottom mold, so that the end molding part can better dock with the first side wing molding part, ensuring that the shape of the end of the rear bumper of the automobile after molding is more accurate. The top of the end molding part abuts against the surface of the first side wing molding part, increasing the contact area between the two and improving the stability and reliability of the mold. The end molding part is fixedly connected to the first side wing molding part, further enhancing the rigidity and stability of the entire mold, preventing displacement or deformation during the molding process, thereby ensuring the quality of the molded product.

[0022] Optionally, a first positioning column is fixedly provided on the end forming piece, a first positioning hole is opened on the first wing forming piece, and the first positioning column is plug-fitted into the first positioning hole.

[0023] By adopting the above technical solution, the positioning between the end molding and the first wing molding is more accurate and reliable, ensuring the relative position stability of each component during the molding process, and improving the assembly accuracy and molding quality of the mold. Specifically, the plug-in cooperation between the first positioning column and the first positioning hole effectively prevents displacement during the molding process, ensuring the consistency of the size and shape of the bumper after molding.

[0024] Optionally, a plurality of support columns are fixedly disposed on the bottom mold, and connecting pieces are fixedly disposed on the support columns.

[0025] By adopting the above technical solution, the multiple support columns fixed on the bottom mold can enhance the rigidity and stability of the mold and avoid deformation caused by uneven force during the molding process. The connectors fixed on the support columns can be easily connected to other equipment or devices, improving the efficiency of mold installation and disassembly, thereby improving production efficiency and mold service life.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By opening a main molding groove that matches the contour of the rear bumper of the automobile on the bottom mold, and respectively arranging a first side wing molding piece and a second side wing molding piece on the top and bottom of the bottom mold, the mold can accurately mold the side wing structure of the rear bumper of the automobile, significantly improving the molding accuracy and consistency, and effectively solving the problem of dimensional deviation that is prone to occur when molding the side wing structure of the rear bumper in the prior art; 2. An end forming piece is arranged at the end of the bottom mold, and the end forming piece, the first side wing forming piece, the second side wing forming piece and the main forming groove together enclose a cavity, thereby ensuring the precise forming of the end shape of the rear bumper of the automobile, improving the overall forming quality, and avoiding the problems caused by inaccurate end shape; 3. The synergistic effect between the first wing molding part, the second wing molding part and the end molding part enables the mold to better adapt to the requirements of the complex curved surface structure of the rear bumper of the automobile, improves the molding efficiency and yield rate, and reduces the difficulty of subsequent processing and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a carbon fiber mold used for molding a rear bumper of an automobile in an embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram from another perspective of the carbon fiber mold used for molding the rear bumper of an automobile in an embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of the first wing forming part in the embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the structure of the second side wing forming part in the embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of the structure of the bottom mold in the embodiment of the present application.

[0032] Figure 6 It is a schematic diagram of the structure of the end forming part in the embodiment of the present application.

[0033] Description of reference numerals: 1. Bottom mold; 11. Main molding groove; 12. First positioning groove; 13. Second positioning groove; 14. Support column; 15. Connector; 16. Second positioning column; 2. First wing molding part; 21. Curved molding groove; 22. Hanging ring; 23. First positioning hole; 24. First holding column; 25. Second positioning hole; 3. Second wing molding part; 31. Molding seat; 32. Molding assembly; 321. Molding protrusion; 322. Molding groove; 4. End molding part; 41. First positioning column; 42. Second holding column. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be the common meanings understood by those skilled in the art to which this application belongs. The "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components.

[0036] The present application embodiment discloses a carbon fiber mold for molding a rear bumper of an automobile. Figure 1 The carbon fiber mold for molding the rear bumper of an automobile comprises a bottom mold 1, which can be made of stainless steel to increase its wear resistance and high temperature resistance. Another option is to use aluminum alloy material to reduce the weight of the mold and improve production efficiency.

[0037] The bottom of the bottom mold 1 is integrally formed with three support columns 14, which are arranged at intervals along the length direction of the bottom mold 1. The bottom end of each support column 14 is a flat structure, which increases the stability of the carbon fiber mold. The function of the support column 14 is to support and fix the entire mold to ensure its stability during the molding process. The support column 14 can be made of high-strength steel material to withstand greater pressure.

[0038] Reference Figure 2 The side wall of each support column 14 is fixedly provided with an L-shaped connector 15, which is used to connect with other devices and can be threaded or snap-fitted to facilitate disassembly and maintenance. The connector 15 can be made of stainless steel to improve its corrosion resistance and service life.

[0039] Reference Figure 1 and Figure 2 The bottom mold 1 is provided with a main molding groove 11 that matches the outer contour of the rear bumper of the automobile. The top of the bottom mold 1 is fixedly provided with a first wing molding piece 2, and the first wing molding piece 2 is used to accurately mold the wing structure on one side of the rear bumper of the automobile. The bottom of the bottom mold 1 is fixedly provided with a second wing molding piece 3, and the second wing molding piece 3 is used to accurately mold the wing structure on the other side of the rear bumper of the automobile. Both ends of the bottom mold 1 are fixedly provided with end molding pieces 4, and the end molding pieces 4 are used to mold the end shape of the rear bumper of the automobile. The first wing molding piece 2, the second wing molding piece 3, the end molding piece 4 and the main molding groove 11 are enclosed together to form a cavity for molding the rear bumper of the automobile.

[0040] Reference Figure 3The first side wing molding part 2 is provided with a curved molding groove 21 for molding the rear bumper of the automobile on one side close to the mold cavity, and the curved molding groove 21 is a symmetrical structure. The side wing structures on both sides of the rear bumper of the automobile can be molded more accurately, ensuring the symmetry and aesthetics of the rear bumper of the automobile. At the same time, the symmetrical structure also helps to improve the stability and service life of the mold, and reduce the production error caused by asymmetry.

[0041] Reference Figure 1 and Figure 2 , a plurality of lifting rings 22 are provided on the first wing forming part 2. The plurality of lifting rings 22 provided on the first wing forming part 2 can facilitate the handling and installation of the mold, and improve the operation efficiency and safety. The design of the lifting ring 22 makes the mold more stable during the lifting process, and reduces the risk of mold damage caused by improper operation.

[0042] Continue to refer to Figure 1 and Figure 2 A plurality of first gripping columns 24 are provided on opposite sides of the first wing molding 2, which increases the convenience for the staff to install and remove the first wing molding 2. A plurality of second gripping columns 42 are fixedly provided on the end molding 4, which increases the convenience for the staff to install and remove the end molding 4.

[0043] Reference Figure 1 , Figure 4 and Figure 5 The second wing forming part 3 includes a plurality of forming seats 31, which are all fixed on the bottom mold 1. The bottom mold 1 is provided with a plurality of first positioning grooves 12. The forming seats 31 correspond to the first positioning grooves 12 one by one, and the outer side wall of the forming seat 31 is connected to the inner side wall of the first positioning groove 12. The setting of the first positioning groove 12 enables the forming seat 31 to be accurately positioned, ensuring the relative position between the forming seat 31 and the bottom mold 1 is stable, thereby improving the forming accuracy and consistency. In addition, the outer side wall of the forming seat 31 is in close contact with the inner side wall of the first positioning groove 12, further enhancing the stability of the structure, preventing displacement during the forming process, and ensuring the accuracy of the size and shape of the formed part.

[0044] Reference Figure 4, each forming seat 31 is provided with a forming assembly 32 for forming a plug-in component, the forming assembly 32 includes a plurality of forming protrusions 321, the plurality of forming protrusions 321 are fixed on the forming seat 31, and a forming groove 322 is provided on the side of the forming protrusion 321 close to the main forming groove 11, and the forming groove 322 is adapted to the shape of the plug-in component. The forming assembly 32 includes a plurality of forming protrusions 321, these forming protrusions 321 are fixed on the forming seat 31, and a forming groove 322 is provided on the side of each forming protrusion 321 close to the main forming groove 11, and the shape of the forming groove 322 is adapted to the shape of the plug-in component. The forming protrusions 321 can accurately form the plug-in component on the bumper, ensuring that the shape and position of the plug-in component are highly consistent, thereby improving the stability and reliability of the bumper installation.

[0045] Reference Figure 1 and Figure 5 The end of the bottom mold 1 is provided with a second positioning groove 13, and the outer side wall of the end molded piece 4 abuts against the inner side wall of the second positioning groove 13. The outer side wall of the end molded piece 4 abuts against the inner side wall of the second positioning groove 13 of the bottom mold 1, ensuring the precise positioning between the end molded piece 4 and the bottom mold 1, improving the molding accuracy and consistency, avoiding the molding error caused by position offset, and thus improving the molding quality of the rear bumper of the automobile.

[0046] Reference Figure 1 , the end of the first wing molding part 2 extends out of the end of the bottom mold 1, the top of the end molding part 4 abuts against the surface of the first wing molding part 2, and the end molding part 4 is fixedly connected to the first wing molding part 2. The end of the first wing molding part 2 extends out of the end of the bottom mold 1, so that the end molding part 4 can better dock with the first wing molding part 2, ensuring that the shape of the end of the rear bumper of the automobile after molding is more accurate. The top of the end molding part 4 abuts against the surface of the first wing molding part 2, increasing the contact area between the two and improving the stability and reliability of the mold. The end molding part 4 is fixedly connected to the first wing molding part 2, further enhancing the rigidity and stability of the entire mold, preventing displacement or deformation during the molding process, thereby ensuring the quality of the molded product.

[0047] Reference Figure 3 and Figure 5, the two end forming pieces 4 are integrally formed with first positioning posts 41, the lower surface of the first wing forming piece 2 is provided with two first positioning holes 23, the first positioning posts 41 correspond to the first positioning holes 23 one by one, and the first positioning posts 41 and the first positioning holes 23 are plugged in. The top of the bottom mold 1 is integrally formed with a plurality of second positioning posts 16, and the plurality of second positioning posts 16 are arranged at intervals along the length direction of the bottom mold 1, and the lower surface of the first wing forming piece 2 is provided with a plurality of second positioning holes 25, and the plurality of second positioning holes 25 are located between the two first positioning holes 23, and the plurality of second positioning holes 25 are arranged at intervals along the length direction of the bottom mold 1. The second positioning posts 16 correspond to the second positioning holes 25 one by one, and the second positioning posts 16 and the second positioning holes 25 are plugged in. The firmness of the installation of the first wing forming piece 2 and the two end forming pieces 4 is ensured, and the assembly accuracy and molding quality of the mold are improved.

[0048] The implementation principle of this embodiment is as follows: the main molding groove 11 on the bottom mold 1 is consistent with the contour of the rear bumper of the automobile, ensuring the high precision and consistency of the main mold, and avoiding the problem of uneven or deformed curved surface of the bumper after molding. The first wing molding piece 2 and the second wing molding piece 3 are respectively located at the top and bottom of the bottom mold 1, which can accurately mold the wing structures on both sides of the rear bumper of the automobile, and improve the shape accuracy of the wing part. The end molding piece 4 is arranged at the end of the bottom mold 1, which can accurately mold the end shape of the rear bumper of the automobile, and ensure that the details of the end meet the requirements. The first wing molding piece 2, the second wing molding piece 3, the end molding piece 4 and the main molding groove 11 together enclose a cavity, making the cavity structure of the entire mold more complete and accurate, and improving the molding quality. In addition, this mold is suitable for the process of pasting materials and baking molding, which improves production efficiency and product quality. The main molding groove 11 on the bottom mold 1, the first wing molding piece 2, the second wing molding piece 3 and the end molding piece 4 work together to form a complete cavity, ensuring the accurate molding of various parts of the rear bumper of the automobile.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A carbon fiber mold for molding a rear bumper of an automobile, characterized in that: The invention comprises a bottom mold (1), wherein the bottom mold (1) is provided with a main molding groove (11) which matches the outer contour of the rear bumper of an automobile; a first side wing molding piece (2) is arranged at the top of the bottom mold (1), and the first side wing molding piece (2) is used to accurately mold the side wing structure on one side of the rear bumper of the automobile; a second side wing molding piece (3) is arranged at the bottom of the bottom mold (1), and the second side wing molding piece (3) is used to accurately mold the side wing structure on the other side of the rear bumper of the automobile; an end molding piece (4) is arranged at the end of the bottom mold (1), and the end molding piece (4) is used to mold the end shape of the rear bumper of the automobile; the first side wing molding piece (2), the second side wing molding piece (3), the end molding piece (4) and the main molding groove (11) are enclosed together to form a cavity for molding the rear bumper of the automobile.

2. The carbon fiber mold for molding a rear bumper of an automobile according to claim 1, characterized in that: A curved surface molding groove (21) for molding a rear bumper of an automobile is provided on a side of the first wing molding piece (2) close to the molding cavity, and the curved surface molding groove (21) is a symmetrical structure.

3. The carbon fiber mold for molding a rear bumper of an automobile according to claim 1, characterized in that: A plurality of lifting rings (22) are provided on the first wing forming member (2).

4. The carbon fiber mold for molding a rear bumper of an automobile according to claim 3, characterized in that: The second wing molding component (3) comprises a plurality of molding seats (31), the plurality of molding seats (31) are all fixed on the bottom mold (1), and each molding seat (31) is provided with a molding component (32) for molding the plug-in component.

5. The carbon fiber mold for molding a rear bumper of an automobile according to claim 4, characterized in that: The molding assembly (32) comprises a plurality of molding protrusions (321), the plurality of molding protrusions (321) are all fixed on the molding seat (31), and a molding groove (322) is provided on one side of the molding protrusions (321) close to the main molding groove (11), and the molding groove (322) is adapted to the shape of a connector on a rear bumper of an automobile.

6. The carbon fiber mold for molding a rear bumper of an automobile according to claim 5, characterized in that: The bottom mold (1) is provided with a plurality of first positioning grooves (12), the forming seats (31) correspond to the first positioning grooves (12) one by one, and the outer side walls of the forming seats (31) are connected to the inner side walls of the first positioning grooves (12).

7. The carbon fiber mold for molding a rear bumper of an automobile according to claim 1, characterized in that: A second positioning groove (13) is provided at the end of the bottom mold (1), and the outer side wall of the end molding piece (4) abuts against the inner side wall of the second positioning groove (13).

8. The carbon fiber mold for molding a rear bumper of an automobile according to claim 1, characterized in that: The end of the first wing forming part (2) extends out from the end of the bottom mold (1), the top of the end forming part (4) abuts against the surface of the first wing forming part (2), and the end forming part (4) is fixedly connected to the first wing forming part (2).

9. The carbon fiber mold for molding a rear bumper of an automobile according to claim 8, characterized in that: A first positioning column (41) is fixedly provided on the end forming piece (4), a first positioning hole (23) is provided on the first wing forming piece (2), and the first positioning column (41) is plugged into and matched with the first positioning hole (23).

10. The carbon fiber mold for molding a rear bumper of an automobile according to claim 1, characterized in that: A plurality of support columns (14) are fixedly arranged on the bottom mold (1), and a connecting piece (15) is fixedly arranged on the support column (14).

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