Mould pressing device for carbon-carbon composite material

Abstract

The utility model discloses a mould pressing device of a carbon-carbon composite material, which comprises an upper mould and a lower mould, the upper surface of the lower mould is provided with a mould groove, the bottom of the mould groove is provided with a groove, a top frame flush with the groove is arranged in the groove, the bottom of the top frame is fixedly connected with a first spring, and the first spring is fixed with the lower mould. A rotating groove is formed in the bottom of the groove, a rotating ring is rotationally connected into the rotating groove, a plurality of guide grooves are formed in the top of the rotating ring, guide columns are arranged in the guide grooves, a plurality of sliding holes communicated with the rotating groove are formed in the circumferential inner wall of the groove, and wedge-shaped blocks are slidably connected into the sliding holes. According to the mold pressing device, a worker can conveniently take out formed finished products, the use convenience of the mold pressing device is improved, the top frame cannot easily move, and the use stability of the mold pressing device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon-carbon composite materials, in particular to a molding device for carbon-carbon composite materials. Background Art

[0002] Carbon / carbon composite material is a carbon matrix composite material reinforced by carbon fiber and its fabric, which has the advantages of low density, high strength, high specific modulus, high thermal conductivity, low expansion coefficient, good friction performance, good thermal shock resistance, and high dimensional stability.

[0003] After retrieval, a molding fixture for a carbon-carbon crucible support announced with the publication number of CN219749000U can adapt to different processes by setting a pressure ring and replacing pressure rings with different thicknesses, and can control the forming tension of the crucible support preform, avoid cracking, and improve production efficiency and product quality. However, after pressing and forming, the finished product sometimes fits with the mold groove, resulting in the difficulty of separating the finished product from the mold, and thus it is difficult to take out the finished product. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a molding device for carbon-carbon composite materials is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A molding device for carbon-carbon composite materials includes an upper mold and a lower mold. The upper surface of the lower mold is provided with a mold groove, and a groove is opened at the bottom of the mold groove. A top frame flush with the groove is arranged in the groove. The bottom of the top frame is fixedly connected with a first spring, and the first spring is fixed to the lower mold. A rotating groove is opened at the bottom of the groove, and a rotating ring is rotatably connected in the rotating groove. A plurality of guiding grooves are opened at the top of the rotating ring, and guiding columns are arranged in the plurality of guiding grooves. A plurality of sliding holes communicating with the rotating groove are opened on the circumferential inner wall of the groove, and a plurality of wedge-shaped blocks are slidably connected in the plurality of sliding holes. The plurality of wedge-shaped blocks are respectively fixed to the plurality of guiding columns. A plurality of clamping holes are opened on the circumferential outer wall of the top frame, and the wedge-shaped blocks are clamped with the clamping holes. A second spring is fixedly connected to one side of the plurality of sliding holes, and the second spring is fixed to the wedge-shaped block. A connecting component for rotating the rotating ring is arranged in the lower mold.

[0007] As a further scheme of the utility model, the connecting component includes an avoidance groove, which is opened on one side of the lower mold and communicates with the rotating groove. A push handle is fixedly connected to one side of the rotating ring, and the push handle extends out of the lower mold through the avoidance groove.

[0008] As a further solution of the utility model, two guide rails are fixedly connected to one side of the lower mold, a protective cover is slidably connected to the outer sides of the two guide rails, and the push handle is located inside the protective cover.

[0009] As a further solution of the utility model, baffles for supporting the protective cover are fixedly connected to the bottom ends of the two guide rails.

[0010] As a further solution of the utility model, second magnetic blocks are fixedly connected to the top ends of the two guide rails, and a first magnetic block is fixedly connected to the top outer wall of the protective cover.

[0011] As a further solution of the utility model, two fixing seats are fixedly connected to both sides of the lower mold.

[0012] As a further solution of the utility model, rubber pads are fixedly connected to the bottoms of the multiple fixing seats, and the rubber pads are as long as the fixing seats.

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

[0014] 1. Through the combined use of the first spring and the top frame, after the pressing and forming, under the action of the compressed first spring, the top frame can be pushed upward, so that the top frame pushes out the formed finished product in the mold cavity, facilitating the staff to take out the formed finished product and improving the convenience of using the molding device.

[0015] 2. Through the combined use of the wedge block and the card hole, the wedge block is inserted into the card hole on the top frame, so that the top frame can be fixed and the top frame will not move easily, improving the stability of using the molding device. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a molding device for carbon-carbon composite materials proposed by the utility model;

[0017] Figure 2 It is a partial sectional structural schematic diagram of a molding device for carbon-carbon composite materials proposed by the utility model;

[0018] Figure 3 It is a partial enlarged structural schematic diagram of a molding device for carbon-carbon composite materials proposed by the utility model.

[0019] In the figure: 1, upper mold; 2, fixing seat; 3, lower mold; 4, rubber pad; 5, protective cover; 6, first magnetic block; 7, second magnetic block; 8, top frame; 9, groove; 10, sliding hole; 11, rotating groove; 12, rotating ring; 13, wedge block; 14, avoiding groove; 15, baffle; 16, push handle; 17, guide post; 18, guide groove; 19, first spring; 20, second spring; 21, card hole. Specific embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, and not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present utility model.

[0021] Referring to Figures 1 - 3 , a molding device for a carbon-carbon composite material, including an upper mold 1 and a lower mold 3. A mold groove is formed on the upper surface of the lower mold 3, and a groove 9 is formed at the bottom of the mold groove. A top frame 8 flush with the groove 9 is arranged in the groove 9. A first spring 19 is welded to the bottom of the top frame 8, and the first spring 19 is fixed to the lower mold 3. A rotating groove 11 is formed at the bottom of the groove 9, and a rotating ring 12 is rotatably connected in the rotating groove 11. A plurality of guiding grooves 18 are formed at the top of the rotating ring 12. Guiding columns 17 are arranged in the plurality of guiding grooves 18. A plurality of sliding holes 10 communicating with the rotating groove 11 are formed on the circumferential inner wall of the groove 9. Wedge blocks 13 are slidably connected in the plurality of sliding holes 10. The plurality of wedge blocks 13 are respectively fixed to the plurality of guiding columns 17. A plurality of clamping holes 21 are formed on the circumferential outer wall of the top frame 8, and the wedge blocks 13 are clamped with the clamping holes 21. A second spring 20 is welded to one side of the plurality of sliding holes 10, and the second spring 20 is fixed to the wedge block 13. A connecting component for rotating the rotating ring 12 is arranged in the lower mold 3. When the rotating ring 12 is rotated, the guiding column 17 will move along the guiding groove 18 during the rotation process. The guiding column 17 will drive the wedge block 13 to move into the sliding hole 10. The wedge block 13 will squeeze the second spring 20 and disengage from the clamping hole 21 on the top frame 8. At this time, the top frame 8 is no longer fixed, and the compressed first spring 19 will push the top frame 8 upward through its own elastic force, so that the top frame 8 will eject the molded mold in the mold groove, facilitating the staff to take out the molded finished product.

[0022] In the present utility model, the connection component includes an avoidance groove 14 which is opened on one side of the lower die 3 and is communicated with the rotation groove 11. A push handle 16 is welded to one side of the rotating ring 12, and the push handle 16 passes through the avoidance groove 14 and extends out of the lower die 3. Two guide rails are fixed to one side of the lower die 3 by bolts. A protective cover 5 is slidably connected to the outer sides of the two guide rails, and the push handle 16 is located inside the protective cover 5. The push handle 16 is covered by the protective cover 5, so that foreign objects can be prevented from colliding with the push handle 16. Baffles 15 for supporting the protective cover 5 are fixed to the bottom ends of the two guide rails by bolts. Second magnets 7 are bonded to the top ends of the two guide rails. A first magnet 6 is bonded to the top outer wall of the protective cover 5, and the first magnet 6 and the second magnet 7 can be adsorbed. The protective cover 5 is pulled to move upward along the guide rails, so that the second magnet 7 on the protective cover 5 is adsorbed to the first magnet 6, thereby fixing the position of the protective cover 5. Then, the push handle 16 is pulled to move in the avoidance groove 14, and the push handle 16 will drive the rotating ring 12 to rotate. Two fixing seats 2 are welded to both sides of the lower die 3. Rubber pads 4 are bonded to the bottoms of the multiple fixing seats 2, and the rubber pads 4 are as long as the fixing seats 2.

[0023] Working principle: When in use, the protective cover 5 is pulled to move upward along the guide rails, so that the second magnet 7 on the protective cover 5 is adsorbed to the first magnet 6, thereby fixing the position of the protective cover 5. Then, the push handle 16 is pulled to move in the avoidance groove 14, and the push handle 16 will drive the rotating ring 12 to rotate. During the rotation of the rotating ring 12, the guide post 17 will move along the guide groove 18. The guide post 17 will drive the wedge block 13 to move into the sliding hole 10. The wedge block 13 will squeeze the second spring 20 and disengage from the card hole 21 on the top frame 8. At this time, the top frame 8 is no longer fixed, and the first spring 19 in the compressed state will push the top frame 8 upward through its own elastic force, so that the top frame 8 will eject the mold formed in the mold groove, facilitating the staff to take out the formed finished product and improving the convenience of using the molding device.

[0024] Finally, it should be noted that: for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A molding device for carbon-carbon composite materials, comprising an upper mold (1) and a lower mold (3), wherein a mold groove is formed on the upper surface of the lower mold (3), characterized in that: The bottom of the mold groove is provided with a groove (9), and a top frame (8) flush with the groove (9) is provided in the groove (9). A first spring (19) is fixedly connected to the bottom of the top frame (8), and the first spring (19) is fixed to the lower mold (3). The bottom of the groove (9) is provided with a rotating groove (11), and a rotating ring (12) is rotatably connected in the rotating groove (11). A plurality of guide grooves (18) are provided on the top of the rotating ring (12), and a plurality of guide columns (17) are provided in each of the plurality of guide grooves (18). The inner wall of the groove (9) is provided with a plurality of guide columns (17) which are aligned with the rotating ring. A sliding hole (10) is connected to the movable groove (11), and a plurality of the sliding holes (10) are slidably connected with a wedge block (13), and the plurality of the wedge blocks (13) are respectively fixed to a plurality of guide columns (17). A plurality of clamping holes (21) are opened on the circumferential outer wall of the top frame (8), and the wedge blocks (13) are clamped with the clamping holes (21). A second spring (20) is fixedly connected to one side of the plurality of sliding holes (10), and the second spring (20) is fixed to the wedge block (13), and a connecting component for rotating the swivel (12) is provided in the lower mold (3).

2. A carbon-carbon composite material molding device according to claim 1, characterized in that: The connection assembly comprises a avoidance groove (14), the avoidance groove (14) is arranged on one side of the lower mould (3), and the avoidance groove (14) is communicated with the rotation groove (11), one side of the rotating ring (12) is fixedly connected with a push handle (16), and the push handle (16) passes through the avoidance groove (14) and extends out of the lower mould (3).

3. A carbon-carbon composite material molding device according to claim 2, characterized in that: One side of the lower mold (3) is fixedly connected to two guide rails, the outer sides of the two guide rails are slidably connected to a protective cover (5), and the push handle (16) is located inside the protective cover (5).

4. A carbon-carbon composite material molding device according to claim 3, characterized in that: The bottom ends of the two guide rails are fixedly connected with baffles (15) for supporting the protective cover (5).

5. A carbon-carbon composite material molding device according to claim 4, characterized in that: The top ends of the two guide rails are fixedly connected to a second magnetic block (7), and the top outer wall of the protective cover (5) is fixedly connected to a first magnetic block (6).

6. A carbon-carbon composite material molding device according to claim 1, characterized in that: Two fixing seats (2) are fixedly connected to both sides of the lower mold (3).

7. A carbon-carbon composite material molding device according to claim 6, characterized in that: The bottoms of the plurality of fixing seats (2) are all fixedly connected to rubber pads (4), and the rubber pads (4) are of the same length as the fixing seats (2).

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