CN214926220U - Carbon fiber shell forming die - Google Patents
Carbon fiber shell forming die Download PDFInfo
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- CN214926220U CN214926220U CN202120508405.1U CN202120508405U CN214926220U CN 214926220 U CN214926220 U CN 214926220U CN 202120508405 U CN202120508405 U CN 202120508405U CN 214926220 U CN214926220 U CN 214926220U
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- carbon fiber
- inner cavity
- sealing groove
- upper cover
- sealing ring
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Abstract
The utility model discloses a carbon fiber shell forming die, which comprises a base, an upper cover, a sealing ring, demoulding cloth and a vacuum bag film; 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 carbon fiber shell to be formed, 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 sealing ring is embedded into the sealing groove and clamped between the base and the upper cover; the demoulding cloth is arranged in the inner cavity; the vacuum bag film is covered on the demoulding cloth; therefore, the scheme has low requirement on production equipment, simple manufacture, low cost and environmental protection, and the manufactured carbon fiber product has less post rework, good quality and high yield, thereby practically solving the problem that the existing forming method can not give consideration to both processing quality and cost.
Description
Technical Field
The utility model relates to a carbon fiber material processing field, in particular to carbon fiber housing forming die.
Background
Carbon fiber is a new high-tech material widely applied to the fields of aviation, sports goods, machinery, automobiles and the like, has a series of advantages of light weight, higher strength than steel, high specific strength and modulus, excellent corrosion resistance, fatigue resistance, designability and the like, and the manufactured shell has the soft processability, unique appearance and the like of textile fiber, and is favored by the masses.
At present, the mature shell forming process mainly comprises four forming processes of SMC, RTM, vacuum bag pressing, autoclave and the like. Wherein, most products adopt an autoclave process autoclave forming method, the investment in the early stage is large, the cost is high, and the process is complex. The method is not suitable for small-batch production of micro-enterprises or product samples and the like, so that the optimization and simplification of the process and the reduction of the process cost become problems to be solved urgently.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a carbon fiber shell 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 carbon fiber shell forming die, which comprises a base, an upper cover, a sealing ring, demoulding cloth and a vacuum bag film; 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 carbon fiber shell to be formed, and a circle of sealing groove is arranged 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 sealing ring is embedded into the sealing groove and clamped between the base and the upper cover; the demolding cloth is arranged in the inner cavity; the vacuum bag film is covered on the demolding cloth.
Preferably, the thickness of the sealing ring is larger than the depth of the sealing groove by 3-5 mm.
Preferably, the shore hardness of the sealing ring is between 10 and 20 degrees.
Preferably, the edge of the demolding cloth extends out of the edge of the inner cavity and is placed inside the sealing groove.
Preferably, an edge of the vacuum bag film extends beyond the sealing groove.
Preferably, the inside of the sealing groove is a step surface, one surface of the sealing ring is step-shaped and matched with the step surface, and the vacuum bag film is clamped between the sealing ring and the sealing groove.
The utility model has the advantages as follows:
because the sealing washer embedding in the seal groove, the sealing washer centre gripping in the base with between the upper cover, the drawing of patterns cloth is located the inner chamber, the vacuum bag membrane cover in on the drawing of patterns cloth, so when carrying out production, will assemble forming die places and heats on the warm table, and the warp the air cock interface is right forming die is inside aerifys the pressurization, in order to utilize vacuum bag membrane inflation compresses tightly presoaked epoxy carbon cloth can accomplish the bending of carbon fiber shell, so this scheme requires lowly to the equipment of production, 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 current forming method effectively and can't compromise processingquality and cost's problem.
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 carbon fiber housing provided in 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 diagram of a seal ring according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a forming mold provided in an embodiment of the present invention;
fig. 5 is a schematic view of a manufacturing method of a carbon fiber housing according to an embodiment of the present invention.
The reference numbers are as follows:
10. a carbon fiber housing; 11. pre-dipping epoxy resin carbon cloth; 12. demolding the cloth; 13. vacuum bag film;
20. a base; 21. an inner cavity; 22. a sealing groove;
30. an upper cover; 31. an air nozzle interface;
40. and (5) sealing rings.
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 carbon fiber shell forming die, as shown in figures 1 to 5, comprising a base 20, an upper cover 30, a sealing ring 40, a demoulding cloth 12 and a vacuum bag film 13; 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 carbon fiber shell 10 to be formed, 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; the sealing ring 40 is embedded into the sealing groove 22, and the sealing ring 40 is clamped between the base 20 and the upper cover 30; the demoulding cloth 12 is arranged in the inner cavity 21; the vacuum bag film 13 is covered on the release cloth 12.
The specific application mode comprises the following steps:
step S1, manufacturing a forming die according to the shape of the carbon fiber shell 10 to be formed, wherein the 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 carbon fiber shell 10 to be formed, 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 the seal ring 40 according to the shape of the seal groove 22;
step S3, coating a release agent in the inner cavity 21, then adhering a pre-impregnated epoxy resin carbon cloth 11 on the surface of the inner cavity 21, adhering a release cloth 12 on the pre-impregnated epoxy resin carbon cloth 11, and adhering a vacuum bag film 13 on the release cloth 12;
step S4, embedding the seal ring 40 into the seal groove 22, and pressing the seal ring 40 with the upper cover 30;
step S5, placing the assembled forming die on a heating table for heating, and inflating and pressurizing the inside of the forming die through an air nozzle interface 31 so as to utilize the vacuum bag film 13 to expand and compact the pre-impregnated epoxy resin carbon cloth 11;
step S6, the molding process is completed, and the carbon fiber housing 10 molded by the epoxy resin-impregnated carbon cloth 11 is taken out from the molding die.
Compared with an autoclave forming method by an autoclave process, the method has the advantages of low requirement on production equipment, simple manufacture, low cost, environmental protection, less post rework of the manufactured carbon fiber product, good quality and high yield, and the problem that the existing forming method cannot give consideration to both processing quality and cost is solved practically.
Preferably, in step S2, the thickness of the sealing ring 40 is greater than the depth of the sealing groove 22 by 3-5 mm, and after this arrangement, the sealing ring 40 can be stably clamped between the upper cover 30 and the base 20, wherein the upper cover 30 and the base 20 can be screwed and fixed by bolts.
Preferably, in step S2, a proper amount of silica gel raw material is prepared, then the silica gel raw material is poured into the mold and filled, the mold is placed on a heating table for heating and vulcanizing, and the sealing ring 40 is obtained by demolding and trimming after cooling, so that the quality of the sealing ring 40 can be ensured, and the air tightness in the production process is guaranteed.
Preferably, in step S2, the shore hardness of the sealing ring 40 is set to be between 10 degrees and 20 degrees, and after the setting mode is adopted, the hardness and the deformation capability of the sealing ring 40 can be ensured, so that an important guarantee is provided for the sealing performance in the manufacturing process.
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 production of the carbon fiber casing 10 excellent in 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 carbon fiber casing 10 of excellent quality.
Preferably, in step S6, the forming mold is water-cooled, and the formed carbon fiber shell 10 is taken out by demolding in water; after the operation mode is adopted, the difficulty in removing the carbon fiber shell 10 is reduced, so that the composite material is convenient to remove.
Preferably, in step S3, the edge of the release fabric 12 extends beyond the edge of the cavity 21 and is disposed inside the sealing groove 22, and the release fabric 12 can cover the epoxy resin-impregnated carbon fabric 11 completely by extending the coverage of the release fabric 12.
Preferably, in step S3, the edge of the vacuum bag film 13 extends beyond the sealing groove 22, and the vacuum bag film 13 covers the entire surface of the release fabric 12 by extending the coverage of the vacuum bag film 13, and the amount of the vacuum bag film 13 exceeding the width of the sealing groove 22 is preferably set to be more than twice as large as the width of the vacuum bag film 13, and at the same time, the vacuum bag film 13 has enough area to sufficiently press the release fabric 12 after inflation and pressurization.
Preferably, the inside of the sealing groove 22 is a step surface, one surface of the sealing ring 40 is step-shaped matched with the step surface, and the vacuum bag film 13 is clamped between the sealing ring 40 and the sealing groove 22, so that after the arrangement mode is adopted, the clamping firmness of the sealing ring 40 and the sealing groove 22 to the vacuum bag film 12 is improved.
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 (6)
1. A carbon fiber shell forming die is characterized in that,
comprises a base, an upper cover, a sealing ring, demoulding cloth and a vacuum bag film;
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 carbon fiber shell to be formed, and a circle of sealing groove is arranged 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 sealing ring is embedded into the sealing groove and clamped between the base and the upper cover;
the demolding cloth is arranged in the inner cavity;
the vacuum bag film is covered on the demolding cloth.
2. The carbon fiber shell forming die of claim 1, wherein the thickness of the sealing ring is 3-5 mm greater than the depth of the sealing groove.
3. The carbon fiber shell molding mold according to claim 1, wherein the shore hardness of the sealing ring is between 10 degrees and 20 degrees.
4. The carbon fiber shell molding die of claim 1, wherein an edge of the release cloth extends beyond an edge of the inner cavity and is positioned within the sealing groove.
5. The carbon fiber shell molding die of claim 1, wherein an edge of the vacuum bag film extends beyond the sealing groove.
6. The carbon fiber shell molding die of claim 5, wherein a step surface is arranged inside the sealing groove, one surface of the sealing ring is a step shape matched with the step surface, and the vacuum bag film is clamped between the sealing ring and the sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120508405.1U CN214926220U (en) | 2021-03-10 | 2021-03-10 | Carbon fiber shell forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120508405.1U CN214926220U (en) | 2021-03-10 | 2021-03-10 | Carbon fiber shell forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214926220U true CN214926220U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120508405.1U Active CN214926220U (en) | 2021-03-10 | 2021-03-10 | Carbon fiber shell forming die |
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| CN (1) | CN214926220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021953A (en) * | 2021-03-10 | 2021-06-25 | 广州雷迅创新科技股份有限公司 | Carbon fiber shell forming method and mold |
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2021
- 2021-03-10 CN CN202120508405.1U patent/CN214926220U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021953A (en) * | 2021-03-10 | 2021-06-25 | 广州雷迅创新科技股份有限公司 | Carbon fiber shell forming method and mold |
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