CN214926219U - Composite material bent sheet forming die - Google Patents
Composite material bent sheet forming die Download PDFInfo
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- CN214926219U CN214926219U CN202120508400.9U CN202120508400U CN214926219U CN 214926219 U CN214926219 U CN 214926219U CN 202120508400 U CN202120508400 U CN 202120508400U CN 214926219 U CN214926219 U CN 214926219U
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- silica gel
- composite material
- gel gasket
- boss
- upper cover
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The utility model discloses a composite material bending thin plate forming die, which comprises a base, an upper cover and a silica gel gasket; the base is provided with an inner cavity and a sealing groove, the shape of the inner cavity is matched with the shape of the composite material to be molded, and the sealing groove is arranged around the periphery of the inner cavity for a circle; the upper cover is provided with an air nozzle interface which is communicated with two opposite surfaces of the upper cover; the silica gel gasket is clamped between the base and the upper cover, the silica gel gasket covers the inner cavity, a boss is arranged on one surface of the silica gel gasket, a circle of boss is arranged around the periphery of the silica gel gasket, and the boss is embedded in the sealing groove; the scheme has low requirement on production equipment, simple manufacture, low cost and environmental protection, the manufactured carbon fiber product has less post rework, good quality and high yield, and the problem that the existing forming method can not take processing quality and cost into consideration is practically solved.
Description
Technical Field
The utility model relates to a combined material processing field, in particular to combined material crooked sheet metal forming die.
Background
The advanced composite material has a series of advantages of high specific strength, specific modulus, excellent corrosion resistance, fatigue resistance, designability and the like, and the thin plate made of the composite material is light and convenient, has high cost performance, and is mainly used for covering in the aviation field, bonding and reinforcing with a non-metal material shell, decorating products in various fields and the like.
At present, the forming process of the composite material bent plate mainly comprises compression molding of a hot pressing table and heating, curing and forming of a vacuumizing hot pressing tank. The artware manufactured by the two methods has good quality, but the cost of the input equipment is high. The compression molding efficiency is high, the operation is simple, but the requirement on the quality of the mold is high, and the early-stage investment preparation period is long; the early stage vacuumizing preparation work for heating, curing and forming of the vacuumizing autoclave is troublesome, the efficiency is low, and the vacuum bag cannot be reused and is not environment-friendly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a combined material crooked sheet metal forming die to solve the problem that current forming method can't compromise processingquality and cost.
In order to solve the technical problem, the utility model provides a composite material bending thin plate forming die, which comprises a base, an upper cover and a silica gel gasket; the base is provided with an inner cavity and a sealing groove, the shape of the inner cavity is matched with the shape of the composite material to be molded, and the sealing groove is arranged in a circle around the periphery of the inner cavity; the upper cover is provided with an air nozzle interface which is communicated with two opposite surfaces of the upper cover; the silica gel gasket centre gripping in the base with between the upper cover, the silica gel gasket covers the inner chamber, silica gel gasket one surface is equipped with the boss, the boss centers on the week side of silica gel gasket arranges the round, the boss embedding in the seal groove.
In one embodiment, the height of the boss is 3-5 mm greater than the depth of the sealing groove.
In one embodiment, the shore hardness of the boss is between 10 and 20 degrees.
In one embodiment, an arc-shaped concave surface is arranged in the middle of the inner cavity, a containing groove is arranged on the periphery of the arc-shaped concave surface, a circle of the containing groove is arranged around the periphery of the arc-shaped concave surface, and the containing groove is arranged between the arc-shaped concave surface and the sealing groove.
In one embodiment, an arc transition surface is disposed between the receiving groove and the sealing groove.
The utility model has the advantages as follows:
because the silica gel gasket is clamped between the base and the upper cover, the silica gel gasket covers the inner cavity, a boss is arranged on one surface of the silica gel gasket, a circle of boss is arranged around the periphery of the silica gel gasket, the boss is embedded in the sealing groove, therefore, when in production, the assembled composite material bent sheet forming die can be placed on a heating table for heating, and the inner part of the composite material bent thin plate forming die is inflated and pressurized through the air nozzle interface so as to utilize the expansion of the silica gel gasket to compact the pre-impregnated composite material, can accomplish combined material's bending shaping, whole scheme is very low to production facility's requirement, and the preparation is concise, and is with low costs, the environmental protection, and the carbon fiber product later stage reworking that makes out is few, and is of high quality, and the yields is high, has solved the problem that current forming method can't compromise processingquality and cost conscientiously.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the embodiments will be briefly described below, and obviously, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a composite material provided by an embodiment of the present invention;
fig. 2 is a schematic view of a base structure provided in an embodiment of the present invention;
fig. 3 is a schematic structural view of a silica gel gasket provided in an embodiment of the present invention;
fig. 4 is a schematic view of an assembly state structure of a silica gel gasket according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an assembly manner of the composite material and the silica gel gasket provided by the embodiment of the present invention;
fig. 6 is a schematic structural diagram of a composite material molding state provided by an embodiment of the present invention.
The reference numbers are as follows:
10. pre-impregnating the composite material; 11. bending the thin plate by the composite material;
20. a base; 21. an inner cavity; 22. a sealing groove; 23. an arc-shaped concave surface; 24. a receiving groove; 25. an arc transition surface;
30. an upper cover; 31. an air nozzle interface;
40. a silica gel gasket; 41. and (4) a boss.
Detailed Description
The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
The utility model provides a composite material bending sheet forming die, as shown in figures 1 to 6, comprising a base 20, an upper cover 30 and a silica gel gasket 40; the base 20 is provided with an inner cavity 21 and a sealing groove 22, the shape of the inner cavity 21 is matched with the shape of the composite material to be molded, and the sealing groove 22 is arranged around the periphery of the inner cavity for a circle; the upper cover 30 is provided with an air nozzle interface 31, and the air nozzle interface 31 is communicated with two opposite surfaces of the upper cover 30; the silica gel gasket 40 is clamped between the base 20 and the upper cover 30, the silica gel gasket 40 covers the inner cavity 21, a boss 41 is arranged on one surface of the silica gel gasket 40, the boss 41 surrounds the silica gel gasket 40 in a circle, and the boss 41 is embedded into the sealing groove 22.
The specific application mode comprises the following steps:
step S1, manufacturing a composite material bent sheet forming die according to the shape of the composite material to be formed, wherein the composite material bent sheet forming die comprises a base 20 and an upper cover 30; the base 20 is provided with an inner cavity 21 and a sealing groove 22, the shape of the inner cavity 21 is matched with the shape of the composite material to be molded, and the sealing groove 22 is arranged around the periphery of the inner cavity 21 for a circle; the upper cover 30 is provided with an air nozzle interface 31, and the air nozzle interface 31 is communicated with two opposite surfaces of the upper cover 30;
step S2, manufacturing a silica gel gasket 40 and the silica gel gasket 40 according to the shape of the composite material to be molded, wherein a boss 41 is arranged on one surface of the silica gel gasket 40, and the boss 41 is arranged around the periphery of the silica gel gasket 40 for a circle;
step S3, coating a release agent in the inner cavity 21, and then pasting the prepreg composite material 10 on the surface of the inner cavity 21;
step S4, embedding the boss 41 into the sealing groove 22, so that the silicone gasket 40 covers the prepreg composite material 10, and then pressing the silicone gasket 40 with the upper cover 30;
step S5, placing the assembled composite material bent thin plate forming die on a heating table for heating, and inflating and pressurizing the interior of the composite material bent thin plate forming die through an air nozzle interface 31 so as to utilize the expansion of the silica gel gasket 40 to compact the prepreg composite material 10;
in step S6, the molding process is completed, and the molded composite material bent sheet 11 is taken out from the composite material bent sheet molding die.
In the mode of vacuum bag machine-shaping, not only the operation is complicated, and the vacuum bag is damaged easily moreover, and this scheme requires lowly to the equipment of production, and the preparation is concise, with low costs, and the environmental protection, the carbon fiber goods later stage reworking that makes out is few, of high quality, and the yields is high, has solved the problem that current forming method can't compromise processingquality and cost conscientiously.
Preferably, the height of the boss 41 is 3-5 mm greater than the depth of the sealing groove 22, and after the arrangement mode is adopted, the upper cover 30 and the base 20 can be ensured to stably clamp the silica gel gasket 40, wherein the upper cover 30 and the base 20 can be screwed and fixed by using bolts.
Preferably, the shore hardness of the boss 41 is between 10 degrees and 20 degrees, and after the arrangement mode is adopted, the hardness and the deformation capacity of the boss 41 can be ensured, so that an important guarantee is provided for the sealing performance in the manufacturing process.
Preferably, the middle part of the inner cavity 21 is provided with an arc-shaped concave surface 23, the periphery of the arc-shaped concave surface 23 is provided with a receiving groove 24, the receiving groove 24 is arranged around the periphery of the arc-shaped concave surface 23 in a circle, and the receiving groove 24 is arranged between the arc-shaped concave surface 23 and the sealing groove 22; the curved concave surface 23 is provided for the prepreg composite material 10 to be pressed and molded, and the receiving groove 24 is used for partially receiving the silicone rubber gasket 40, so as to ensure the silicone rubber gasket 40 to be tightly adhered to the prepreg composite material 10 after being expanded.
Preferably, an arc transition surface 25 is arranged between the accommodating groove 24 and the sealing groove 22, and after the arrangement mode is adopted, the silica gel gasket 40 can be conveniently and tightly attached to the transition position of the accommodating groove 24 and the sealing groove 22, so that the air tightness in the production process is improved.
Preferably, in step S2, a proper amount of silica gel raw material is prepared, vacuumized, poured and filled on a silica gel pad mold, placed on a heating table for heating and vulcanizing, cooled, removed from the mold and trimmed to obtain the silica gel pad 40; after the molding method is adopted, the expansion deformation of the silica gel gasket 40 in the subsequent operation can be ensured, so that the prepreg composite material 10 can be tightly pressed.
Preferably, in step S5, the heating is performed at a temperature of 140 to 180 ℃; with this arrangement, it is possible to ensure a suitable temperature, thereby facilitating the production of a composite material bent sheet 11 of excellent quality.
Preferably, in step S5, the pressure for inflation is between 0.4MPa and 0.8 MPa; with this arrangement, it is possible to ensure a suitable air pressure for producing the composite material bent sheet 11 of excellent quality.
Preferably, in step S6, the composite material bent sheet forming mold is water-cooled, and then the upper cover 30 and the silica gel gasket 40 are sequentially removed to take out the formed composite material bent sheet 11; after the operation mode is adopted, the difficulty in removing the composite material bent thin plate 11 is reduced, so that the removal of the composite material bent thin plate 11 is facilitated.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (5)
1. A composite material bending sheet forming die is characterized in that,
comprises a base, an upper cover and a silica gel gasket;
the base is provided with an inner cavity and a sealing groove, the shape of the inner cavity is matched with the shape of the composite material to be molded, and the sealing groove is arranged in a circle around the periphery of the inner cavity;
the upper cover is provided with an air nozzle interface which is communicated with two opposite surfaces of the upper cover;
the silica gel gasket centre gripping in the base with between the upper cover, the silica gel gasket covers the inner chamber, silica gel gasket one surface is equipped with the boss, the boss centers on the week side of silica gel gasket arranges the round, the boss embedding in the seal groove.
2. The composite material bent sheet forming die as claimed in claim 1, wherein the height of the boss is 3-5 mm greater than the depth of the sealing groove.
3. The composite curved sheet forming die of claim 1, wherein the boss has a shore hardness of between 10 degrees and 20 degrees.
4. The composite material bent sheet forming die as claimed in claim 1, wherein an arc-shaped concave surface is provided in a middle portion of the inner cavity, and a receiving groove is provided around the arc-shaped concave surface, the receiving groove being arranged around a circumference of the arc-shaped concave surface, the receiving groove being disposed between the arc-shaped concave surface and the sealing groove.
5. The composite material bent sheet forming die as claimed in claim 4, wherein an arc transition surface is provided between the receiving groove and the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120508400.9U CN214926219U (en) | 2021-03-10 | 2021-03-10 | Composite material bent sheet forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120508400.9U CN214926219U (en) | 2021-03-10 | 2021-03-10 | Composite material bent sheet forming die |
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| CN214926219U true CN214926219U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120508400.9U Active CN214926219U (en) | 2021-03-10 | 2021-03-10 | Composite material bent sheet forming die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021943A (en) * | 2021-03-10 | 2021-06-25 | 广州雷迅创新科技股份有限公司 | Composite material bent sheet forming method and die |
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2021
- 2021-03-10 CN CN202120508400.9U patent/CN214926219U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021943A (en) * | 2021-03-10 | 2021-06-25 | 广州雷迅创新科技股份有限公司 | Composite material bent sheet forming method and die |
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