CN209775590U - Carbon fiber vacuum bag pressing forming die - Google Patents
Carbon fiber vacuum bag pressing forming die Download PDFInfo
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- CN209775590U CN209775590U CN201920285338.4U CN201920285338U CN209775590U CN 209775590 U CN209775590 U CN 209775590U CN 201920285338 U CN201920285338 U CN 201920285338U CN 209775590 U CN209775590 U CN 209775590U
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Abstract
The utility model relates to a carbon fiber vacuum bag press forming die, which comprises a vacuum bag and a forming die, wherein the forming die comprises an upper die core and a lower die core, a high temperature resistant sealing strip is arranged between the upper die core and the lower die core, and the upper die core and the lower die core are matched to form a sealing cavity; the prepreg carbon fiber cloth is laid on the lower die core, the vacuum bag covers the prepreg carbon fiber cloth, the periphery of the vacuum bag is hermetically bonded with the lower die core through rubber, and a die cavity is formed between the vacuum bag and the lower die core. The design is reasonable, the functions of drawing die forming and vacuum autoclave are integrated, so that the problems that large carbon fiber products are produced without an ultra-large vacuum autoclave are solved, the problems that die accessories cannot resist high temperature and are easy to damage in the vacuum autoclave are solved, the problems that the autoclave consumes a small amount of resources each time and queues up when the amount of the accessories is large are solved, and the pre-paved carbon fiber-impregnated cloth is further pressurized by utilizing a bag pressing process.
Description
Technical Field
the utility model relates to a mould field of making, concretely relates to moulded die is pressed to carbon fiber vacuum bag.
Background
The compression molding of the carbon fiber is realized through a molding die and an autoclave together, no ultra-large vacuum autoclave is used for producing large carbon fiber products at the present stage, and die accessories are not high-temperature resistant and are easy to damage in the vacuum autoclave, so that the problems of resource waste when the autoclave is used in small quantity every time and waiting when the autoclave is used in large quantity are solved.
Disclosure of Invention
In order to solve the problem, the utility model provides a carbon fiber vacuum bag presses moulded die, reasonable in design, integrated drawing die shaping and vacuum autoclave function to solve and know not have the large-scale carbon fiber product of super large vacuum autoclave production, solve the problem that the mould annex is not high temperature resistant easy bad in vacuum autoclave, solve the autoclave and waste of resources when the volume is little at every turn, wait the problem of lining up when the volume is big, and utilize the bag to press the technology, further pressurize to the carbon fiber cloth that soaks of presprearranging.
The technical scheme of the utility model:
A carbon fiber vacuum bag compression molding die is connected with a die temperature machine, the die temperature machine controls the heating and cooling of a die, and compression molding is carried out on pre-impregnated carbon fiber cloth; the prepreg carbon fiber cloth is laid on the lower die core, the vacuum bag covers the prepreg carbon fiber cloth, the periphery of the vacuum bag is hermetically bonded with the lower die core through rubber, and a die cavity is formed between the vacuum bag and the lower die core.
Bag pressing technology: the vacuum generator is used for vacuumizing the die cavity, so that air, water vapor and volatile matters in the die cavity are pumped out, and the phenomenon that the surface quality is influenced due to the formation of air holes on the surface of resin in the product forming process is avoided; the vacuum environment can shorten the curing time and improve the mechanical property of the product; to avoid delamination of the article; compressed air is injected into the sealing cavity of the upper mold core air inlet box, the pressure in the sealing cavity is increased along with the increase of the amount of the compressed air, and the pre-impregnated carbon fiber cloth is extruded by the vacuum bag, so that the pre-impregnated carbon fiber cloth is pressurized to flow into the mold cavity when the temperature of the pre-impregnated carbon fiber cloth is not high and the flowability is high.
When the pressure is continuously increased to the set pressure, the vacuum of the mold cavity is kept, and the mold is heated and cooled by the control of the mold temperature controller, so that the functions of mold forming and autoclave are realized.
Further improvement and refinement are made to above-mentioned technical scheme, air inlet and compressed air pipeline between be provided with the air-vent valve of taking the pressure release function, be convenient for adjust mould inner chamber pressure, utilize the governing valve to carry out the pressure release before the die sinking simultaneously, guarantee die sinking safety.
The technical scheme is further improved and refined, and aiming at some products with barbs, a plurality of barb sliding blocks are arranged on the periphery of the lower die core, the barb sliding blocks are in sealing contact with the lower die core, the upper die core and the lower die core are matched, and a sealing cavity is formed among the upper die core, the lower die core and the barb sliding blocks.
The technical scheme is further improved and refined, the barb slide block is rotatably arranged on the periphery of the lower die core through a driving connecting rod mechanism, and the barb slide block is provided with a locking device.
Further improvement and refinement are made to above-mentioned technical scheme, locking device include slider locking board and locking cylinder, slider locking board corresponds installs at last mould benevolence lateral wall, along with last mould benevolence and lower mould benevolence compound die, slider locking board pressure is in the barb slider outside, locking cylinder fixed mounting is on lower mould benevolence, is located barb slider below, is provided with the latch segment on the locking cylinder piston rod, locking cylinder drive latch segment removes and presses in the barb slider outside.
The technical scheme is further improved and refined, and the heat insulation plates are arranged at the top and the four walls of the upper die core, at the bottom and the four walls of the upper die core, so that the heating temperature in the die cavity is favorably ensured.
The utility model has the advantages that the design is reasonable, the functions of the forming die, the vacuum bag and the die temperature controller are integrated, thereby solving the problems that no super-large vacuum autoclave is used for producing large carbon fiber products, the die accessories are not high temperature resistant and easy to damage in the vacuum autoclave, and the problems of resource waste when the autoclave is small in quantity each time and queuing and waiting when the quantity is large are solved; and further pressurizing the pre-paved carbon fiber-impregnated cloth by utilizing a bag pressing process.
Drawings
Fig. 1 is a schematic structural view of a carbon fiber vacuum bag press forming die.
Fig. 2 is a front view of a carbon fiber vacuum bag compression mold.
Fig. 3 is a top view of a carbon fiber vacuum compression molding die.
3 fig. 3 4 3 is 3 a 3 schematic 3 sectional 3 view 3 in 3 the 3 direction 3 of 3 a 3- 3 a 3 in 3 fig. 3 3 3. 3
In the figure, a lower die core 2 of an upper die core 1 and a lower die core 2 of the upper die core have water inlet and outlet collecting blocks 6, vacuum bags 9 are provided with inverted hooks, sliding blocks 3 drive a connecting rod mechanism 4, a sliding block locking plate 7 is provided with a locking block 8 of a cylinder 5 in a locking mode.
Detailed Description
As shown in fig. 1-4, a carbon fiber vacuum bag compression molding die is connected with a die temperature machine, the die temperature machine controls the heating and cooling of the die, and the compression molding of pre-impregnated carbon fiber cloth comprises a vacuum bag 9 and a molding die, the molding die comprises an upper die core 1 and a lower die core 2, a high temperature resistant sealing strip is arranged between the upper die core 1 and the lower die core 2, the upper die core 1 and the lower die core 2 are assembled to form a sealed cavity, a vacuum exhaust hole is arranged on the lower die core 2, the vacuum exhaust hole is connected with an independently arranged vacuum generating device through an air pipe, an air inlet is arranged on the upper die core 1, the air inlet is connected with a compressed air pipeline, circulation pipelines are respectively arranged in the upper die core 1 and the lower die core 2, two ends of the circulation pipelines are connected through a water inlet and outlet water collecting block; the prepreg carbon fiber cloth is laid on the lower mold core 2, the vacuum bag 9 covers the prepreg carbon fiber cloth, the periphery of the vacuum bag 9 is hermetically bonded with the lower mold core 2 through rubber, and a mold cavity is formed between the vacuum bag 9 and the lower mold core 2; a pressure regulating valve with a pressure relief function is arranged between the air inlet and the compressed air pipeline, so that the pressure in the inner cavity of the mold can be conveniently regulated, and meanwhile, the pressure relief is carried out by utilizing the regulating valve before the mold opening, so that the safety of the mold opening is ensured; aiming at some products with barbs, a plurality of barb sliding blocks 3 are arranged on the periphery of the lower die core 2, the barb sliding blocks 3 are in sealing contact with the lower die core 2, the upper die core 1 and the lower die core 2 are assembled, and a sealing cavity is formed among the upper die core 1, the lower die core 2 and the barb sliding blocks 3; the barb sliding block 3 is rotationally arranged on the periphery of the lower die core 2 through a driving connecting rod mechanism 4, and a locking device is arranged on the barb sliding block 3; the locking device comprises a sliding block locking plate 7 and a locking cylinder 5, the sliding block locking plate 7 is correspondingly arranged on the side wall of the upper die core 2, along with the assembly of the upper die core 1 and the lower die core 2, the sliding block locking plate 7 is pressed on the outer side of the inverted hook sliding block 3, the locking cylinder 5 is fixedly arranged on the lower die core 2 and is positioned below the inverted hook sliding block 3, a locking block 8 is arranged on a piston rod of the locking cylinder 5, and the locking cylinder 5 drives the locking block 8 to move and press on the outer side of the inverted hook sliding block 3; the top and the four walls of the upper mold core 1, the bottom and the four walls of the upper mold core are provided with heat insulation plates, so that the heating temperature in the mold cavity can be ensured.
The utility model discloses during the use, at present lay the preimpregnation carbon cloth in lower mould benevolence manually, cover the vacuum bag on the preimpregnation carbon cloth, through rubber cement adhesion lower mould benevolence all around, start vacuum generator, form the vacuum environment between vacuum bag and lower mould benevolence, upper mould benevolence and lower mould benevolence compound die, let in compressed air from the upper mould benevolence inlet port, along with the increase of compressed air volume, increase rapidly the sealed chamber pressure between upper mould benevolence and the lower mould benevolence, the mould temperature machine control of ventilating heats the mould, the vacuum bag extrudes preimpregnation carbon cloth, stop when reaching the set pressure; keeping the pressure and the vacuum of the mold cavity, continuously heating the mold through the control of a mold temperature controller, cooling the mold through the control of the mold temperature controller after heating to 150 ℃, and cooling to 30 ℃ to finish the curing and shaping of the pre-impregnated carbon fiber cloth; and (5) relieving pressure, opening the die and taking out the molded product.
Because of the limited character expression, there exists an infinite concrete structure objectively, for those skilled in the art, without departing from the principle of the present invention, a plurality of improvements, decorations or changes can be made, and the above technical features can be combined in a proper way; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the invention.
Claims (6)
1. The utility model provides a moulded die is pressed to carbon fiber vacuum bag, it is connected with the mould temperature machine, and mould temperature machine control heats and cools off the mould, to the compression molding of preimpregnation carbon cloth, its characterized in that: the vacuum forming mould comprises a vacuum bag and a forming mould, wherein the forming mould comprises an upper mould core and a lower mould core, a high-temperature resistant sealing strip is arranged between the upper mould core and the lower mould core, the upper mould core and the lower mould core are matched to form a sealing cavity, a vacuum exhaust hole is arranged on the lower mould core, the vacuum exhaust hole is connected with an independently arranged vacuum generating device through an air pipe, an air inlet is arranged on the upper mould core, the air inlet is connected with a compressed air pipeline, circulating pipelines are respectively arranged in the upper mould core and the lower mould core, two ends of each circulating pipeline are connected through water inlet and outlet collecting blocks, and the; the prepreg carbon fiber cloth is laid on the lower die core, the vacuum bag covers the prepreg carbon fiber cloth, the periphery of the vacuum bag is hermetically bonded with the lower die core through rubber, and a die cavity is formed between the vacuum bag and the lower die core.
2. The carbon fiber vacuum bag press forming die as claimed in claim 1, wherein: and a pressure regulating valve with a pressure relief function is arranged between the air inlet and the compressed air pipeline.
3. The carbon fiber vacuum bag press forming die as claimed in claim 1, wherein: the periphery of the lower mold core is provided with a plurality of barb sliding blocks, the barb sliding blocks are in sealing contact with the lower mold core, the upper mold core and the lower mold core are assembled, and a mold cavity is formed among the upper mold core, the lower mold core and the barb sliding blocks.
4. The carbon fiber vacuum bag press forming die as claimed in claim 3, wherein: the barb slide block is rotationally arranged on the periphery of the lower die core through a driving connecting rod mechanism, and the barb slide block is provided with a locking device.
5. The carbon fiber vacuum bag press forming die as claimed in claim 4, wherein: the locking device comprises a sliding block locking plate and a locking air cylinder, the sliding block locking plate is correspondingly installed on the side wall of the upper die core, along with the die assembly of the upper die core and the lower die core, the sliding block locking plate is pressed on the outer side of the barb sliding block, the locking air cylinder is fixedly installed on the lower die core and respectively located on two sides below the barb sliding block, a locking block is arranged on a piston rod of the locking air cylinder, and the locking air cylinder drives the locking block to move and press on the outer side of the barb sliding block.
6. The carbon fiber vacuum bag press forming die as claimed in claim 1, wherein: and heat insulation plates are arranged on the top and the four walls of the upper die core, the bottom and the four walls of the upper die core.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018208009949 | 2018-05-28 | ||
| CN201820800994 | 2018-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209775590U true CN209775590U (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920285338.4U Active CN209775590U (en) | 2018-05-28 | 2019-03-07 | Carbon fiber vacuum bag pressing forming die |
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| CN (1) | CN209775590U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693398A (en) * | 2018-05-28 | 2019-04-30 | 苏州华特时代碳纤维有限公司 | Carbon fiber vacuum flexible bag moulding mould and its heat pressing process |
| CN110978566A (en) * | 2019-12-31 | 2020-04-10 | 东莞艾可迅复合材料有限公司 | Solidification forming device of integrated mold |
-
2019
- 2019-03-07 CN CN201920285338.4U patent/CN209775590U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109693398A (en) * | 2018-05-28 | 2019-04-30 | 苏州华特时代碳纤维有限公司 | Carbon fiber vacuum flexible bag moulding mould and its heat pressing process |
| CN109693398B (en) * | 2018-05-28 | 2023-12-29 | 苏州华特时代碳纤维有限公司 | Carbon fiber vacuum bag pressing and forming die and hot pressing process thereof |
| CN110978566A (en) * | 2019-12-31 | 2020-04-10 | 东莞艾可迅复合材料有限公司 | Solidification forming device of integrated mold |
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