A composite material forming tool

By designing composite material molding fixtures and combining components such as limit plates, slide bars, one-way valves, and threaded rods, the problem that existing fixtures cannot be applied to autoclaves, hot presses, and ovens has been solved, enabling effective processing of composite materials under multiple process conditions.

CN116728840BActive Publication Date: 2026-03-31ANHUI JIALIQI ADVANCED COMPOSITES TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-11
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing composite material molding fixtures are not suitable for processing autoclaves, hot presses, and ovens, and cannot meet the needs of different molding processes.

Method used

A composite material molding fixture was designed, including a base, a lower mold, and an upper mold. By setting components such as a limiting plate, a limiting block, a sliding rod, a one-way valve, and a threaded rod, the fixture is applicable to autoclaves, hot presses, and ovens. The one-way valve is used in conjunction with a vacuum pump to evacuate the vacuum. The sliding rod drives the limiting plate to move. The sliding connection between the limiting block and the limiting plate fixes the sealing film. The threaded rod drives the pressure plate to descend and provide pressure.

Benefits of technology

It enables the effective processing of composite materials in autoclaves, hot presses, and ovens, ensuring the multi-process applicability of the tooling and improving processing flexibility and precision.

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Abstract

The application discloses a composite material forming tool, and belongs to the technical field of composite material processing, which comprises a base, a lower die installed on the base, an upper die installed above the lower die, a plurality of slide rods slidingly installed on the base, a first limiting plate installed at one end of the slide rod, a second limiting plate slidingly installed on the first limiting plate, and a first limiting block slidingly installed on the second limiting plate. The lower die, the one-way valve, the first limiting plate and the second limiting block are cooperated with each other, so that the tool is applicable to a hot pressing tank. The one-way valve is cooperated with the vacuum pump, so that vacuumizing can be carried out. The slide rod is slidingly arranged on the base, so that the first limiting plate can be driven to move. The first limiting plate can press the sealing film. The second limiting block is arranged, so that the sealing film can be clamped on the lower die, and the composite material can be processed by using the hot pressing tank. The upper die and the lower die are cooperated with each other, so that the tool can be applicable to a hot pressing machine.
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Description

Technical Field

[0001] This invention relates to a molding tooling, and more particularly to a composite material molding tooling, belonging to the field of composite material processing technology. Background Technology

[0002] The wings require the use of composite materials in their manufacturing process. These composite materials need to be processed and shaped using autoclaves, hot presses, and ovens. However, existing composite material molding fixtures can only be used for compression molding and cannot meet the different molding processes required for the parts. They are not suitable for processing in autoclaves, hot presses, and ovens. Summary of the Invention

[0003] The main purpose of this invention is to solve the problem that it cannot be applied to autoclaves, hot presses, and ovens for processing.

[0004] The objective of this invention can be achieved by adopting the following technical solution:

[0005] A composite material molding fixture includes a base and a lower mold mounted on the base. An upper mold is mounted above the lower mold. Multiple sliding rods are slidably mounted on the base. A first limiting plate is mounted on one end of each sliding rod. A second limiting plate is slidably mounted on the first limiting plate. A first limiting block is slidably mounted on the second limiting plate. The upper mold has a first limiting groove that cooperates with the first limiting block. The second limiting block is mounted on the first limiting plate. The lower mold has a second limiting groove that cooperates with the second limiting block. Multiple mounting grooves are formed on the lower mold. Mounting blocks are installed inside the mounting grooves. A breathable cloth is provided on the mounting blocks. A one-way valve is positioned above the breathable cloth. A third limiting plate is slidably mounted on the base. A first insert rod is mounted on one end of the third limiting plate. A first slot that cooperates with the first insert rod is formed on each sliding rod. A support frame is mounted on the top of the base. A threaded rod is rotatably mounted on the support frame. A pressure plate is rotatably mounted on the bottom of the threaded rod.

[0006] Preferably, a first slider is installed on the third limiting plate, a first sliding groove is provided on the base to cooperate with the first slider, and a first grip is installed on the third limiting plate.

[0007] Preferably, the first slider has a cavity, a spring is installed inside the cavity, a retaining ball is installed at one end of the spring, and the base has multiple slots that cooperate with the retaining ball.

[0008] Preferably, the bottom of the mounting block is equipped with an insert block, the base has a second slot that cooperates with the insert block, the top of the mounting block is equipped with a second connecting bracket, and the second connecting bracket has a connecting groove that cooperates with the one-way valve.

[0009] Preferably, a plug rod is installed at the bottom of the support frame, and a slot is provided on the base to cooperate with the plug rod. The base is connected to the plug rod by a first bolt.

[0010] Preferably, a first connecting frame is installed on the top of the first limiting block, the first connecting frame is connected to the second limiting plate by a second bolt, the second limiting plate has a plurality of threaded holes that cooperate with the second bolt, and a third handle is installed on the top of the first connecting frame.

[0011] Preferably, a second slider is installed on the second limiting plate, and a second groove is provided on the first limiting block to cooperate with the second slider.

[0012] Preferably, guide blocks are installed on both sides of the second limiting plate, and guide grooves that cooperate with the guide blocks are provided on the first limiting plate.

[0013] Preferably, the top of the lower mold has a groove, and a sealing gasket is installed inside the groove.

[0014] Preferably, the top of the lower mold is equipped with multiple guide rods, which are threadedly connected to the lower mold, and the upper mold has guide holes adapted to the guide rods.

[0015] The beneficial technical effects of this invention are as follows: According to the composite material molding fixture of this invention, by setting a lower mold, a one-way valve, a first limiting plate, and a second limiting block in cooperation, the fixture can be adapted to an autoclave. By setting a one-way valve in conjunction with a vacuum pump, vacuuming can be performed. By setting a sliding rod to slide on the base, the first limiting plate can be moved. By setting a first limiting plate, the sealing film can be pressed tightly. By setting a second limiting block, the sealing film can be secured to the lower mold, enabling the composite material to be processed in an autoclave. By setting an upper mold and a lower mold in cooperation, the fixture can be adapted to a hot press. By setting an installation block, the one-way valve can be disassembled, preventing the one-way valve from affecting the pressing of the upper and lower molds. By setting a second limiting block and a first limiting plate, the lower mold can be limited. By setting a first limiting block and a second limiting plate, the lower mold can be limited. The two limiting plates can limit the upper mold, lock the upper and lower molds together after hot pressing, and adapt the tooling to the dryer. A threaded rod lowers the pressure plate to press the upper mold, providing pressure during use in the dryer. A plug rod engages with the first slot to fix the moved slide rod, preventing the first limiting plate from moving. It can simultaneously limit both the first and second limiting plates. A sliding connection between the second and first limiting plates allows the second limiting plate to be slid into the first limiting plate for storage when not in use. Similarly, a sliding connection between the second and second limiting blocks allows the first limiting block to be slid into the second limiting plate for storage when not in use, preventing the second limiting plate from interfering with the pressing of the upper and lower molds. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the composite material molding tooling according to the present invention;

[0017] Figure 2 This is a schematic diagram of the pressure plate structure of a preferred embodiment of the composite material molding tooling according to the present invention;

[0018] Figure 3 This is a schematic diagram of a support frame structure according to a preferred embodiment of the composite material molding tooling of the present invention;

[0019] Figure 4 This is a schematic diagram of the base structure of a preferred embodiment of the composite material molding tooling according to the present invention;

[0020] Figure 5 This is a schematic diagram of a sealing gasket structure according to a preferred embodiment of the composite material molding tooling of the present invention;

[0021] Figure 6 This is a schematic diagram of a one-way valve structure according to a preferred embodiment of the composite material molding tooling of the present invention;

[0022] Figure 7 This is a schematic diagram of the mounting block structure of a preferred embodiment of the composite material molding tooling according to the present invention;

[0023] Figure 8 This is a schematic diagram of the first slider structure of a preferred embodiment of the composite material molding tooling according to the present invention;

[0024] Figure 9 This is a schematic diagram of the first limiting block structure of a preferred embodiment of the composite material molding tooling according to the present invention;

[0025] Figure 10 This is a schematic diagram of the second slider structure according to a preferred embodiment of the composite material molding tooling of the present invention;

[0026] Figure 11 This is a schematic diagram of the upper mold structure of a preferred embodiment of the composite material molding tooling according to the present invention;

[0027] Figure 12 This is a schematic diagram of a guide rod structure according to a preferred embodiment of the composite material molding tooling of the present invention;

[0028] Figure 13 This is a schematic diagram of a ball clamping structure according to a preferred embodiment of the composite material molding tooling of the present invention.

[0029] In the diagram: 1. Base; 2. Upper mold; 3. Guide rod; 4. First limiting plate; 5. Second limiting plate; 6. First connecting frame; 7. Sliding rod; 8. Third limiting plate; 9. Fourth limiting plate; 10. Lower mold; 11. Sealing gasket; 13. Mounting block; 14. Insert block; 15. Breathable cloth; 16. Second connecting frame; 17. One-way valve; 18. First slider; 19. Ball catcher; 20. Second slider; 21. Spring; 22. Guide block; 23. First insert rod; 24. First limiting block; 25. Second limiting block; 26. Pressure plate; 27. Threaded rod; 28. Second insert rod; 29. ​​Support frame. Detailed Implementation

[0030] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0031] like Figures 1-13As shown, the composite material molding fixture provided in this embodiment includes a base 1 and a lower mold 10 mounted on the base 1. An upper mold 2 is mounted above the lower mold 10. Multiple sliding rods 7 are slidably mounted on the base 1. A first limiting plate 4 is mounted on one end of each sliding rod 7. A second limiting plate 5 is slidably mounted on the first limiting plate 4. A first limiting block 24 is slidably mounted on the second limiting plate 5. A first limiting groove that cooperates with the first limiting block 24 is provided on the upper mold 2. A second limiting block 25 is mounted on the first limiting plate 4. A second limiting groove that cooperates with the second limiting block 25 is provided on the lower mold 10. Multiple mounting grooves are provided on the lower mold 10. Mounting blocks 13 are mounted inside the mounting grooves. A breathable cloth 15 is provided on the mounting blocks 13. A one-way valve 17 is installed above the gas cloth 15. A third limiting plate 8 is slidably mounted on the base 1. A first insert rod 23 is installed at one end of the third limiting plate 8. A first slot is opened on the slide rod 7 to cooperate with the first insert rod 23. A support frame 29 is installed on the top of the base 1. A threaded rod 27 is rotatably mounted on the support frame 29. A pressure plate 26 is rotatably mounted on the bottom of the threaded rod 27. The threaded rod 27 is rotatably connected to the pressure plate 26 through a bearing. By setting the lower mold 10, one-way valve 17, first limiting plate 4 and second limiting block 25 to cooperate with each other, the tooling can be adapted to the autoclave. By setting the one-way valve 17 in conjunction with the vacuum pump, vacuuming can be performed. By setting the slide rod 7 to slide on the base 1, it can drive the first limiting plate 4 to move. The positioning plate 4 can press the sealing film. By setting the second limiting block 25, the sealing film can be stuck on the lower mold 10, enabling the composite material to be processed in a hot press. By setting the upper mold 2 and the lower mold 10 to cooperate with each other, the tooling can be adapted to a hot press. By setting the threaded rod 27 to drive the pressure plate 26 to descend, the upper mold 2 can be pressed, providing pressure when used in a dryer. By setting the mounting block 13, the one-way valve 17 can be disassembled, preventing the one-way valve 17 from affecting the pressing of the upper mold 2 and the lower mold 10. By setting the second limiting block 25 and the first limiting plate 4, the lower mold 10 can be limited. By setting the first limiting block 24 and the second limiting plate 5, the upper mold 2 can be limited, allowing the upper mold to be pressed after hot pressing. The tooling 2 and lower mold 10 are locked together, allowing the tooling to be adapted to the dryer. The first insert rod 23 engages with the first slot to fix the moved slide rod 7, preventing the first limiting plate 4 from moving and simultaneously limiting the first limiting plate 4 and the second limiting plate 5. The second limiting plate 5 is slidably connected to the first limiting plate 4, allowing it to be slid into the first limiting plate 4 for storage when not in use. Similarly, the second limiting block 25 is slidably connected to the second limiting plate 5, allowing the first limiting block 24 to be slid into the second limiting plate 5 for storage when not in use, preventing the second limiting plate 5 from interfering with the pressing of the upper mold 2 and lower mold 10. The bottom of the support frame 29 is equipped with an insert rod 28.The base 1 has a second slot that mates with the second insert rod 28. The base 1 is connected to the second insert rod 28 by a first bolt. By setting the second insert rod 28 to engage with the second slot, the pressure plate 26 can be disassembled when the mold is not in use in the dryer.

[0032] In this embodiment, as Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10 As shown, a first slider 18 is installed on the third limiting plate 8, and a first groove is provided on the base 1 to cooperate with the first slider 18. A first handle is installed on the third limiting plate 8. By setting the first slider 18 to slide in the first groove, the third limiting plate 8 can slide on the base 1, which facilitates the insertion and removal of the first insertion rod 23. A cavity is provided on the first slider 18, and a spring 21 is installed inside the cavity. A retaining ball 19 is installed on one end of the spring 21. Multiple retaining slots are provided on the base 1 to cooperate with the retaining ball 19. By setting the retaining ball 19 to engage with the retaining slots, the first insertion rod 23 can be fixed after movement, which can improve the stability of the first insertion rod 23 after insertion. A fourth limiting plate 9 is installed on the other end of the slider 7, and a second handle is installed on the fourth limiting plate 9. The second handle facilitates the pulling of the slider 7, and in turn facilitates the pulling of the first limiting plate 4 and the second limiting plate 5. A first connecting frame 6 is installed on the top of the first limiting block 24. The first connecting frame 6 is connected to the second limiting plate 5 by a second bolt. The second limiting plate 5 has multiple threaded holes that cooperate with the second bolt. A third handle is installed on the top of the first connecting frame 6. The first limiting block 24 can be fixed after it has moved by the second bolt. The first limiting block 24 can be fixed after it has been inserted, thereby limiting the upper mold 2. A second slider 20 is installed on the second limiting plate 5. A second sliding groove that cooperates with the second slider 20 is opened on the first limiting block 24. The first limiting block 24 can be guided and limited by the sliding connection between the second slider 20 and the second sliding groove. Guide blocks 22 are installed on both sides of the second limiting plate 5. Guide grooves that cooperate with the guide blocks 22 are opened on the first limiting plate 4. The second limiting plate 5 can be guided and limited by the sliding connection between the guide blocks 22 and the guide grooves.

[0033] In this embodiment, as Figure 2 , Figure 3 and Figure 4As shown, a plug block 14 is installed at the bottom of the mounting block 13, and a second slot that mates with the plug block 14 is provided on the base 1. A second connecting bracket 16 is installed at the top of the mounting block 13, and a connecting groove that mates with the one-way valve 17 is provided on the second connecting bracket 16. By setting the plug block 14 to engage with the second slot, it is easy to disassemble and install the one-way valve 17. By setting the second connecting bracket 16, the one-way valve 17 can be limited. A groove is provided at the top of the lower mold 10, and a sealing gasket 11 is installed inside the groove. By setting the sealing gasket 11, the sealing performance can be improved when the one-way valve 17 is evacuated.

[0034] In this embodiment, as Figure 1 and Figure 9 As shown, multiple guide rods 3 are installed on the top of the lower mold 10. The guide rods 3 are connected to the lower mold 10 by threads. The upper mold 2 has guide holes that are compatible with the guide rods 3. By setting the guide rods 3, the upper mold 2 can be guided and limited during hot pressing. By setting the threads, the guide rods 3 can be disassembled when not in use. The guide rods 3 can be disassembled when the tooling is used in the autoclave.

[0035] In this embodiment, as Figures 1-13 As shown in the figure, the working process of a composite material molding fixture provided in this embodiment is as follows:

[0036] Step 1: When the tooling needs to be placed in the autoclave, place the composite material to be processed in the lower mold 10, lay the sealing film, push the slide rod 7, insert the second limit block 25 into the second limit groove, and fix the four sides of the sealing film in the sealing groove. Pull the first insert rod 23, the base 1 squeezes the retaining ball 19, the spring 21 shortens, the first slider 18 slides in the first slide groove, and the retaining ball 19 is pulled out from one of the retaining grooves. Insert the first insert rod 23 into the slide rod 7, and the retaining ball 19 is inserted into the other retaining groove to fix the slide rod 7. Connect the vacuum pump to the one-way valve 17 to evacuate the vacuum. After evacuation, place the tooling in the autoclave.

[0037] Step 2: During hot pressing, place the material to be hot pressed onto the lower mold 10, insert the second limiting block 25 into the lower mold 10, insert the first insert rod 23 into the first slot to fix the slide rod 7, disassemble the one-way valve 17, install the guide rod 3 onto the lower mold 10, place the upper mold 2 onto the lower mold 10, pass the guide hole through the guide rod 3, and use a hot press to hot press the tooling;

[0038] Step 3: Place the tooling into the drying oven, insert the second limiting block 25 into the lower mold 10, pull the second limiting plate 5, the guide block 22 slides in the guide groove, slide the second limiting plate 5 and the first limiting block 24 out from the first limiting plate 4, pull the first limiting block 24, the second slider 20 slides in the second slide groove, insert the first limiting block 24 into the first limiting groove, and turn the second bolt into the first connecting frame 6 and the second limiting plate 5 to fix the first limiting block 24.

[0039] In summary, in this embodiment, the composite material molding fixture, through the interaction of the lower mold 10, one-way valve 17, first limiting plate 4, and second limiting block 25, enables the fixture to be used in an autoclave. The one-way valve 17, in conjunction with a vacuum pump, enables vacuuming. The sliding rod 7, sliding on the base 1, moves the first limiting plate 4, which in turn presses the sealing film. The second limiting block 25 secures the sealing film to the lower mold 10, allowing the composite material to be processed in an autoclave. The interaction of the upper mold 2 and lower mold 10 enables the fixture to be used in a hot press. The threaded rod 27 lowers the pressure plate 26, pressing the upper mold 2. It can provide pressure when used in the dryer. By setting the mounting block 13, the one-way valve 17 can be disassembled, preventing the one-way valve 17 from affecting the pressing of the upper mold 2 and the lower mold 10. By setting the second limiting block 25 and the first limiting plate 4, the lower mold 10 can be limited. By setting the first limiting block 24 and the second limiting plate 5, the upper mold 2 can be limited. It can lock the upper mold 2 and the lower mold 10 after hot pressing, and make the tooling adaptable to the dryer. By setting the first insert 23 to engage with the first slot, the sliding rod 7 can be fixed after movement, preventing the first limiting plate 4 from moving, and simultaneously limiting the first limiting plate 4 and the second limiting plate 5. By setting the second limiting plate 5 to slide with the first limiting plate 4, it can... When the second limiting plate 5 is not in use, it can be slid into the first limiting plate 4 for storage. By setting the second limiting block 25 to slide into the second limiting plate 5, the first limiting block 24 can be slid into the second limiting plate 5 for storage when the first limiting block 24 is not in use, thus preventing the second limiting plate 5 from affecting the pressing of the upper mold 2 and the lower mold 10. By setting the first slider 18 to slide into the first slide groove, the third limiting plate 8 can slide on the base 1, which facilitates the removal and insertion of the first insert rod 23. By setting the locking ball 19 to engage with the locking groove, the first insert rod 23 can be fixed after movement, which can improve the stability of the first insert rod 23 after insertion. By setting the second grip, it is easy to pull the slider 7, and thus easy to pull the first limiting plate 4. The positioning plate 4 and the second limiting plate 5, by setting the second bolt, can fix the moved first limiting block 24, and can fix the inserted first limiting block 24, thereby limiting the upper mold 2. By setting the second slider 20 to slide and connect with the second slide groove, the first limiting block 24 can be guided and limited. By setting the guide block 22 to slide and connect with the guide groove, the second limiting plate 5 can be guided and limited. By setting the insert block 14 to engage with the second slot, the one-way valve 17 can be easily disassembled and installed. By setting the second connecting bracket 16, the one-way valve 17 can be limited. By setting the sealing gasket 11, the sealing performance of the one-way valve 17 can be improved when vacuuming. By setting the guide rod 3, the upper mold 2 can be guided and limited during hot pressing.The guide rod 3 can be disassembled without using the threaded connection, and can also be removed when the tooling is used in the autoclave.

[0040] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A composite material forming tool, characterized by, The utility model provides a mould, including base (1) and install lower mould (10) on base (1), install upper mould (2) on the upper of lower mould (10), a plurality of slide bars (7) are slidably installed on base (1), one end of slide bar (7) is installed with first limit board (4), second limit board (5) is slidably installed on first limit board (4), first limit block (24) is slidably installed on second limit board (5), first limit groove that is cooperated with first limit block (24) is seted up on upper mould (2), second limit block (25) is installed on first limit board (4), and second limit groove that is cooperated with second limit block (25) is seted up on lower mould (10), a plurality of installation groove are seted up on lower mould (10), and installation block (13) is installed in installation groove, breathable cloth (15) is arranged on installation block (13), one-way valve (17) is arranged on the top of breathable cloth (15), third limit board (8) is slidably installed on base (1), first plug rod (23) is installed on one end of third limit board (8), and first plug groove that is cooperated with first plug rod (23) is seted up on slide bar (7), support frame (29) is installed on the top of base (1), threaded rod (27) is rotatably installed on support frame (29), pressure plate (26) is rotatably installed on the bottom of threaded rod (27), first sliding block (18) is installed on third limit board (8), and first sliding slot that is cooperated with first sliding block (18) is seted up on base (1), first handle is installed on third limit board (8), cavity is seted up on first sliding block (18), spring (21) is installed in the inside of cavity, one end of spring (21) is installed with ball (19), a plurality of clamping grooves that are cooperated with ball (19) are seted up on base (1), second sliding block (20) is installed on second limit board (5), and second sliding slot that is cooperated with second sliding block (20) is seted up on first limit block (24), guide block (22) is installed on the both sides of second limit board (5), and guide slot that is cooperated with guide block (22) is seted up on first limit board (4).

2. A composite material forming tool according to claim 1, wherein The bottom of installation block (13) is installed with plug block (14), and the second plug groove that is cooperated with plug block (14) is seted up on base (1), the top of installation block (13) is installed with second connecting frame (16), and the connecting slot that is cooperated with one-way valve (17) is seted up on second connecting frame (16).

3. The composite forming tool of claim 1, wherein The bottom of support frame (29) is installed with second plug rod (28), and the plug groove that is cooperated with second plug rod (28) is seted up on base (1), and base (1) is connected with second plug rod (28) through first bolt.

4. The composite forming tool of claim 1, wherein, The top of the first limiting block (24) is provided with a first connecting frame (6), the first connecting frame (6) is connected with the second limiting plate (5) through a second bolt, a plurality of threaded holes matched with the second bolt are formed in the second limiting plate (5), and the top of the first connecting frame (6) is provided with a third handle.

5. The composite forming tool of claim 1, wherein The top of the lower mold (10) is provided with a groove, and the inside of the groove is provided with a sealing gasket (11).

6. The composite forming tool of claim 1, wherein The top of the lower mold (10) is provided with a plurality of guide rods (3), the guide rods (3) are connected with the lower mold (10) through threads, and the upper mold (2) is provided with guide holes matched with the guide rods (3).

Citation Information

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