CN214820067U - Mould for carbon fiber product molding and autoclave process - Google Patents
Mould for carbon fiber product molding and autoclave process Download PDFInfo
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- CN214820067U CN214820067U CN202022937475.7U CN202022937475U CN214820067U CN 214820067 U CN214820067 U CN 214820067U CN 202022937475 U CN202022937475 U CN 202022937475U CN 214820067 U CN214820067 U CN 214820067U
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Abstract
The utility model discloses a mould for molding carbon fiber products and a mould shared by autoclave processes, which comprises an upper mould and a lower mould, wherein a mould cavity is formed between the upper mould and the lower mould; still include the air pocket and switch the slider, switch the slider inlay and put go up the one side of mould and lower mould, and be located the outside of mould die cavity, the internal portion of bag of air pocket is in the mould die cavity to be located treat that the shaping carbon fiber product is inside, its sack passes through switch the slider and stretch out the mould. The utility model can meet the use requirements of the mould pressing technology and the autoclave technology respectively by the design of the shape changing slide block and the combination of the vacuum bag, thereby realizing dual purposes of one mould, improving the utilization efficiency of the mould and saving the development cost of the mould; the flexible manufacturing of the carbon fiber product is realized through the design and the use of the air bag; the prepared carbon fiber product has clear appearance texture and excellent appearance quality.
Description
Technical Field
The utility model relates to a carbon-fibre composite shaping technical field especially relates to a carbon-fibre goods shaping is with mould pressing and autoclave technology sharing mould.
Background
The carbon fiber composite material has high specific strength and specific rigidity and good impact resistance, has unique fiber texture appearance, and can be used as a substitute of a metal material for automobile exterior trimming parts. Meanwhile, the carbon fiber composite material has a good vibration absorption effect, has a large buffering effect on impact, reduces the generation of impact fragments and improves the safety. The autoclave process and the mold pressing process are widely used as the traditional forming mode of the composite material, and are favored by light-weight manufacturers of the automobile composite material.
The autoclave process has the advantages of uniform molding temperature and pressure, good appearance quality of molded products, large equipment investment, high single-piece production cost and low efficiency; the mould pressing process has the advantages of high forming efficiency and low equipment investment, and has the defects of low appearance quality of formed products, easy existence of pinholes, poor grease and the like. The existing carbon fiber forming die can only be suitable for one forming process, an autoclave process or a die pressing process, and when different products need different forming processes, forming dies suitable for different processes need to be prepared, so that the die development amount is large, the cost is high, and the storage is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a carbon-fibre composite becomes with mould pressing and autoclave technology sharing mould, can solve the above-mentioned problem that exists among the prior art.
In order to solve the technical problem, the utility model discloses a technical scheme be: the mould comprises an upper mould and a lower mould, wherein a mould cavity is formed between the upper mould and the lower mould; still include the air pocket and switch the slider, switch the slider inlay and put go up the one side of mould and lower mould, and be located the outside of mould die cavity, the internal portion of bag of air pocket is in the mould die cavity to be located treat that the shaping carbon fiber product is inside, its sack passes through switch the slider and stretch out the mould.
In a preferred embodiment of the present invention, the switching slider includes an upper slider and a lower slider, wherein the lower slider and the upper slider are fixed to the lower mold and the upper mold, respectively, the upper surface of the lower slider is provided with a groove, and a passage of the air bag opening is formed between the upper slider.
In a preferred embodiment of the present invention, the air bag is a nylon air bag.
In a preferred embodiment of the present invention, the thickness of the air bag is 0.05-0.09 mm.
In a preferred embodiment of the present invention, the groove is a horn-shaped structure, and the small-diameter end faces the outside of the mold.
In a preferred embodiment of the present invention, the groove has a rectangular structure.
In a preferred embodiment of the present invention, the mold further comprises a vacuum bag, the vacuum bag is disposed on the upper mold and is sealed and fixed with the periphery of the lower mold; the vacuum bag is also sealed and fixed with the part of the air bag extending out of the switching slide block.
In a preferred embodiment of the present invention, the lower mold further has a first slider and a second slider, and the first slider is detachably mounted on a side of the lower mold opposite to the switching slider; the second sliding block is detachably mounted on one side, adjacent to the switching sliding block, of the lower die.
In a preferred embodiment of the present invention, the parting line of the first slider and the second slider on the lower mold is located at the R-angle center line of the carbon fiber product.
In a preferred embodiment of the present invention, heating pipes are uniformly distributed in the upper die and the lower die of the mold.
The utility model has the advantages that: the utility model relates to a carbon fiber goods shaping is with mould pressing and autoclave technology sharing mould, through the design of the type changing slider, combine the vacuum bag, can satisfy the operation requirement of mould pressing technology and autoclave technology respectively, realize a mould dual-purpose, improved the utilization efficiency of mould, practice thrift mould development cost; the flexible manufacturing of the carbon fiber product is realized through the design and the use of the air bag; the prepared carbon fiber product has clear appearance texture and excellent appearance quality.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of a mold for molding a carbon fiber product and an autoclave process of the present invention;
FIG. 2 is a schematic view of the internal structure of the upper die;
FIG. 3 is a schematic view of the switching slider shown in the configuration for use in a molding process;
FIG. 4 is a schematic diagram of the fast slide down configuration of the switching slider of FIG. 3;
FIG. 5 is a schematic diagram of the switching slider applied to an autoclave process;
FIG. 6 is a schematic diagram of the structure of the switching slider of FIG. 5;
FIG. 7 is a schematic view of a mold used in a molding process;
FIG. 8 is a schematic view of a mold applied to an autoclave process;
the parts in the drawings are numbered as follows: 1. the mold comprises an upper mold, 2 parts of a lower mold, 3 parts of an air bag, 4 parts of a switching slide block, 5 parts of a heating pipeline, 6 parts of a vacuum bag, 7 parts of a vacuum valve, 8 parts of high-temperature-resistant sealant, 9 parts of an autoclave, 10 parts of a carbon fiber product, 11 parts of a coarse guide block, 12 parts of a fine guide block, 13 parts of a mold lifting hand, 21 parts of a first slide block, 22 parts of a second slide block, 41 parts of an upper slide block, 42 parts of a lower slide block, 421 parts of a horn-shaped structure and 422 parts of a rectangular structure.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1-8, an embodiment of the present invention includes:
the utility model discloses a carbon fiber product shaping is with mould pressing and autoclave technology sharing mould, including last mould 1, lower mould 2, air pocket 3 and switching slider 4.
And a mold cavity is formed between the upper mold 1 and the lower mold 2. Go up the inside of mould 1 and lower mould 2 and evenly arranged heating tube 5, heating tube 5 can adopt steam heating, also can adopt oil heating, and its purpose makes and goes up mould 1 and lower mould 2 thermally equivalent to improve carbon fiber product's shaping quality.
The air bag 3 is a nylon air bag, and the wall thickness of the nylon air bag is 0.05-0.09 mm. The bag body of the air bag 3 is arranged in the mold cavity and is positioned in the carbon fiber product to be molded, and the bag opening of the air bag extends out of the mold through the switching slide block.
The switching slide block 4 is embedded at one side of the upper die 1 and the lower die 2 and is positioned outside the die cavity. Specifically, the switching slider 4 includes an upper slider 41 and a lower slider 42, wherein the upper slider 41 is fixed on the upper die 1, the lower slider 42 is fixed on the lower die 2, a groove is formed on the upper surface of the lower slider 42, and a channel through which the bag opening of the air bag 3 extends out of the die is formed between the groove and the upper slider 41.
Go up the mould 1 and lie in the periphery in shaping membrane chamber installs thick guide block 11 and smart guide block 12, wherein, thick guide block 11 has 4, lies in 4 angles departments of going up the mould for go up the compound die direction of mould 1, have on the lower mould 2 with thick guide block 11 complex guiding hole. And mold lifting hands 13 are also arranged at two ends of the upper mold 1 and used for manually or by a gantry crane to lift the upper mold 1 for mold closing.
The mould can be used in a mould pressing process and an autoclave process respectively.
Example 1
Is used in the molding process.
The groove on the lower die 42 of the switching slider 4 is a horn-shaped structure 421, and the small-caliber end of the horn-shaped structure faces the outside of the die.
The wall thickness of the air bag 3 is 0.07mm, and the width of the bag mouth is 50 mm. The sack of air pocket 3 is followed the recess of the horn structure of slider 4 stretches out outside the mould to insert the air cock in its sack, adopt the adhesive tape with the air cock and the sack winding of air pocket 3 fixed, then insert this air cock part locking fix switch between slider 4's top shoe 41 and gliding block 42, and communicate compressed air through the air cock. The modeling structure of the air bag 3 is consistent with the carbon fiber product to be molded.
The method for forming the carbon fiber product by using the mould and adopting the mould pressing process comprises the following steps:
preheating an upper die 1, a lower die 2, a first sliding block 21 and a second sliding block 22 to 30 ℃, then pasting a layer of 3K carbon fiber prepreg in the film cavities of the upper die 1 and the lower die 2, trimming the first layer of material sheet along the edge of the film cavity of the die, then fixing the first sliding block to the corresponding position of the lower die 2, and pasting a layer of 12K carbon fiber prepreg without trimming;
placing the air bag 3 in the lower die 2, folding and wrapping the air bag 3 by projecting 10mm of the edge of a second layer material sheet (12K carbon fiber prepreg), wherein the air bag 3 is provided with an air nozzle and is locked in a horn-shaped structure groove of the switching slide block 4; and fixing the second slide block 22 at the corresponding position of the lower die 2, and finally closing and locking the upper die 1 and the lower die 2. In the forming process, the heating pipelines 5 of the upper die 1 and the lower die 2 are connected with a steam pipeline, and then the whole die is placed in a die press to be pressurized, so that the carbon fiber product is prepared.
Example 2
The method is used in an autoclave molding process.
The groove on the lower die 42 of the switching slider 4 has a rectangular structure 422.
The wall thickness of the air bag 3 is 0.07mm, and the width of the bag mouth is 50 mm. And the bag opening of the air bag 3 penetrates through the groove of the rectangular structure of the sliding block 4 and extends out of the mold. The modeling structure of the air bag 3 is consistent with the carbon fiber product to be molded.
The mould also comprises a vacuum bag 6, the vacuum bag 6 is sleeved on the upper mould 1 and is sealed and fixed with the periphery of the lower mould 2 by adopting high-temperature sealant 8; the vacuum bag 6 and the part of the air bag 3 extending out of the switching slide block 4 are sealed and fixed by high-temperature sealant 8. The vacuum bag 6 is designed and used, so that air leakage can be prevented from being generated in a mold closing gap between the upper mold 1 and the lower mold 2.
The vacuum bag 6 is also provided with a vacuum valve 7, and the vacuum bag is pumped into a negative pressure environment through the vacuum valve 7.
The method for molding the carbon fiber product by utilizing the mold and adopting the autoclave process comprises the following steps:
preheating an upper die 1, a lower die 2, a first sliding block 21 and a second sliding block 22 to 30 ℃, then pasting a layer of 3K carbon fiber prepreg in the film cavities of the upper die 1 and the lower die 2, trimming the first layer of material sheet along the edge of the film cavity of the die, then fixing the first sliding block to the corresponding position of the lower die 2, and pasting a layer of 12K carbon fiber prepreg without trimming;
the air bag 3 is placed in the lower die 2, the edge of a second layer material sheet (12K carbon fiber prepreg) protrudes by 10mm and is folded to wrap the air bag 3, the bag opening of the air bag 3 penetrates through the shape changing slide block 4, the second slide block 22 is fixed at the corresponding position of the lower die 2, and finally the upper die 1 and the lower die 2 are locked in a matched mode. The vacuum bag 6 is sleeved on the upper die 1 and sealed along the edge of the lower die 2 of the die, rings at two sides of the die are reserved, a shear edge is formed at an air blowing opening of the vacuum bag 6 and is adhered to a bag opening of the air bag 3 by high-temperature sealant 8, and air is exhausted through a vacuum valve 7 on the vacuum bag 6, so that vacuum negative pressure of-0.092 MPa is achieved in the whole vacuum bag 6 and the air bag 8.
Then the whole mould is placed into an autoclave 9, positive pressure in the autoclave 9 is blown into the air bag through the bag opening of the air bag 3, and the preformed carbon fiber prepreg in the mould is formed in the autoclave 9 under the high-temperature and high-pressure environment to obtain the carbon fiber product.
The utility model relates to a carbon fiber product becomes with mould pressing and autoclave technology sharing mould has following advantage:
1. by the design of the shape-changing slide block and the combination of the vacuum bag, the use requirements of a mould pressing process and an autoclave process can be met respectively, one mould has two purposes, the utilization efficiency of the mould is improved, and the development cost of the mould is saved;
2. the flexible manufacturing of the carbon fiber product is realized through the design and the use of the air bag;
3. the parting line of the die is designed at the R corner central line of the product, so that the large surface of the product can be effectively prevented from being disconnected and spliced by carbon fiber textures, the appearance textures of the product can be improved, and the appearance quality of the product can be improved.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. A mould shared by moulding and autoclave processes for forming carbon fiber products comprises an upper mould and a lower mould, wherein a mould cavity is formed between the upper mould and the lower mould; the carbon fiber product forming die is characterized by further comprising an air bag and a switching sliding block, wherein the switching sliding block is embedded in one side of the upper die and one side of the lower die and is positioned outside the die cavity, the bag body of the air bag is arranged in the die cavity and is positioned inside a carbon fiber product to be formed, and the bag opening of the air bag extends out of the die through the switching sliding block.
2. The mold for molding a carbon fiber product and the autoclave process as claimed in claim 1, wherein the switching slider comprises an upper slider and a lower slider, wherein the lower slider and the upper slider are fixed on the lower mold and the upper mold respectively, and the upper surface of the lower slider is provided with a groove to form a channel of the air bag opening with the upper slider.
3. The mold for molding a carbon fiber product as claimed in claim 2, wherein the air bag is a nylon air bag.
4. The mold for molding a carbon fiber product according to claim 3, wherein the thickness of the air bag is 0.05 to 0.09 mm.
5. The mold for molding a carbon fiber product as claimed in claim 2, wherein the groove has a trumpet shape with a small diameter end facing the outside of the mold.
6. The mold for molding a carbon fiber product according to claim 2, wherein the groove has a rectangular configuration.
7. The mold for molding a carbon fiber product according to claim 6, further comprising a vacuum bag surrounding the upper mold and sealingly fixed to the outer periphery of the lower mold; the vacuum bag is also sealed and fixed with the part of the air bag extending out of the switching slide block.
8. The mold for molding a carbon fiber product and the autoclave process as claimed in claim 5 or 6, wherein the lower mold further comprises a first slide block and a second slide block, the first slide block is detachably mounted on a side of the lower mold opposite to the switching slide block; the second sliding block is detachably mounted on one side, adjacent to the switching sliding block, of the lower die.
9. The mold for molding a carbon fiber product and the autoclave process as claimed in claim 8, wherein the parting line of the first and second sliders on the lower mold is located at the center line of the R-angle of the carbon fiber product.
10. The mold for molding carbon fiber products and autoclave process as claimed in claim 5 or 6, wherein heating pipes are uniformly distributed in the upper mold and the lower mold of the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022937475.7U CN214820067U (en) | 2020-12-10 | 2020-12-10 | Mould for carbon fiber product molding and autoclave process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022937475.7U CN214820067U (en) | 2020-12-10 | 2020-12-10 | Mould for carbon fiber product molding and autoclave process |
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| CN214820067U true CN214820067U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022937475.7U Active CN214820067U (en) | 2020-12-10 | 2020-12-10 | Mould for carbon fiber product molding and autoclave process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114619681A (en) * | 2022-01-24 | 2022-06-14 | 荆门劲驰汽车配件股份有限公司 | Method for preparing cavity type carbon fiber parts through integral forming |
-
2020
- 2020-12-10 CN CN202022937475.7U patent/CN214820067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114619681A (en) * | 2022-01-24 | 2022-06-14 | 荆门劲驰汽车配件股份有限公司 | Method for preparing cavity type carbon fiber parts through integral forming |
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