CN109676972B - Integral forming die for carbon fiber blade - Google Patents
Integral forming die for carbon fiber blade Download PDFInfo
- Publication number
- CN109676972B CN109676972B CN201811521862.3A CN201811521862A CN109676972B CN 109676972 B CN109676972 B CN 109676972B CN 201811521862 A CN201811521862 A CN 201811521862A CN 109676972 B CN109676972 B CN 109676972B
- Authority
- CN
- China
- Prior art keywords
- pressurizing
- blade
- die
- lower die
- inner cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 21
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 21
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000004744 fabric Substances 0.000 claims description 11
- 238000000465 moulding Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/08—Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
- B29L2031/082—Blades, e.g. for helicopters
Abstract
The invention belongs to a structure forming technology, and relates to an integral forming die for a carbon fiber blade. The invention comprises an upper die, a lower die, a pressurizing block and a pressurizing bolt; the upper die is a cover plate, and the parting surface of the upper die is in a cutting edge shape; the inner cavity profile of the lower die is consistent with the outer surface of the blade; two blade shoulders and a blade tip in the inner cavity surface of the lower die are respectively provided with a pressurizing block; the pressurizing blocks correspond to the pressurizing bolts respectively; the pressurizing blocks are sliding blocks and slide along corresponding sliding grooves; the sliding groove is arranged in the inner cavity of the lower die and extends along the length direction of the blade in the profile of the inner cavity; the pressurizing bolt passes through the lower die from the outside of the lower die, and the top end of the pressurizing bolt is contacted with the pressurizing block; after the die is assembled, the three pressing blocks are respectively pushed into the forming positions along the respective sliding grooves by the pressing bolts.
Description
Technical Field
The invention belongs to a structure forming technology, and relates to an integral forming die for a carbon fiber blade.
Background
The carbon fiber blade mainly comprises an aluminum flange and a carbon fiber blade body. The traditional mould is divided into an upper mould and a lower mould, the upper mould and the lower mould are provided with fiber cloth, after the mould is closed, the clearance is larger, and the part of the formed blade has the phenomenon of insufficient strength, so the mould can be used for a general blade, but the blade with higher requirements on carbon fiber can generate the following defects if the blade mould is designed according to the traditional technological method: the fiber cloth is discontinuous, so that the overall strength of the blade is insufficient, and the field practical use requirement cannot be met; the slippage phenomenon of the carbon fiber cloth layer can be necessarily generated in the mold closing process, so that the mold closing is difficult and the molding is difficult; the carbon fiber cloth at the blade shoulder and the blade tip of the blade is loose, and the local strength is insufficient.
Disclosure of Invention
The purpose of the invention is that: the integral forming die for the carbon fiber blade is provided to solve the problem of insufficient quality of the blade produced by the traditional die.
A carbon fiber blade integral molding die comprises an upper die, a lower die, a pressurizing block and a pressurizing bolt; the upper die is a cover plate, and the parting surface of the upper die is in a cutting edge shape; the inner cavity profile of the lower die is consistent with the outer surface of the blade; two blade shoulders and a blade tip in the inner cavity surface of the lower die are respectively provided with a pressurizing block; the pressurizing blocks correspond to the pressurizing bolts respectively; the pressurizing blocks are sliding blocks and slide along corresponding sliding grooves; the sliding groove is arranged in the inner cavity of the lower die and extends along the length direction of the blade in the profile of the inner cavity; the pressurizing bolt passes through the lower die from the outside of the lower die, and the top end of the pressurizing bolt is contacted with the pressurizing block; after the die is assembled, the three pressing blocks are respectively pushed into the forming positions along the respective sliding grooves by the pressing bolts.
Further, the distance between the pressurizing block and the blade forming position is 5-10 mm before the die assembly, so that the laying of the carbon fiber cloth is not prevented at the initial stage of die assembly of the blade.
Further, the pressurizing blocks correspond to two pressurizing bolts respectively.
Further, the pressing block was 8mm from the blade molding position before mold closing.
The invention provides an integral forming die for a carbon fiber blade, which has the following advantages: the parting surface of the upper die is in a cutting edge shape, so that the blades can be smoothly ejected; meanwhile, the front edge and the rear edge of the blade are smooth and excessive, so that the beautiful appearance of the blade is ensured, and the design requirement of the blade is met; in addition, the die assembly position is accurate, the overall dimension of the blade is ensured, the slippage of the carbon fiber cloth in the die assembly process is prevented, and the die assembly gap is ensured. All carbon fiber cloth required by the blade is paved on the lower die, so that the carbon fiber cloth can be continuous, and the strength of the blade is ensured; the upper die is simple in structure and easy to process, and the processing period of the die is shortened. The lower die adopts the pressurizing block to locally pressurize, so that the overall size of the blade is ensured, the three carbon fiber cloth layers are more compacted, the local quality of the blade is ensured, and the design requirement of the blade is met.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of FIG. 1 along the parting plane;
FIG. 3 is a schematic cross-sectional view of any of the blades after they are clamped;
FIG. 4 is an enlarged schematic view of the trailing edge of the blade after clamping:
FIG. 5 is an enlarged schematic view of the blade trailing edge before closing the mold:
FIG. 6 is an enlarged schematic view of the blade leading edge after clamping:
FIG. 7 is an enlarged schematic view of the leading edge of the blade before clamping:
FIG. 8 is a schematic view of the chute position;
wherein, 1-upper mould, 2-lower mould, 3-briquetting, 4-compression bolt, 5-blade, 6-blade leading edge, 7-blade trailing edge, 8-She Jian spout, 9-apex spout.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
A carbon fiber blade integral molding die comprises an upper die 1, a lower die 2, a pressurizing block 3 and a pressurizing bolt 4; the upper die 1 is a cover plate, and the parting surface of the upper die is in a cutting edge shape; the inner cavity profile of the lower die 2 is consistent with the outer surface of the blade 5; two blade shoulders and a blade tip in the inner cavity molded surface of the lower die 2 are respectively provided with a pressurizing block 3; the pressurizing blocks 3 correspond to the pressurizing bolts 4 respectively; the pressurizing block 3 is a sliding block and slides along corresponding sliding grooves 8 and 9; the sliding grooves 8 and 9 are arranged in the inner cavity of the lower die 2 and extend along the length direction of the blade 5 in the inner cavity profile; the pressurizing bolt 4 passes through the lower die 2 from the outside of the lower die 2, and the top end of the pressurizing bolt 4 is contacted with the pressurizing block 3; after the mold is closed, the three pressing blocks 3 are pushed into the molding position by the pressing bolts 4 along the respective slide grooves 8, 9.
The distance between the pressurizing block 3 and the forming position of the blade 5 before the die assembly is 5-10 mm, so that the laying of the carbon fiber cloth is not prevented at the initial stage of die assembly of the blade.
The pressurizing blocks 3 correspond to two pressurizing bolts 4 respectively.
In the preferred embodiment, the pressing block 3 is 8mm from the blade molding position before mold clamping.
Claims (4)
1. A carbon fiber blade integral molding die is characterized in that: the die comprises an upper die, a lower die, a pressurizing block and a pressurizing bolt; the upper die is a cover plate, and the parting surface of the upper die is in a cutting edge shape; the inner cavity profile of the lower die is consistent with the outer surface of the blade; two blade shoulders and a blade tip in the inner cavity surface of the lower die are respectively provided with a pressurizing block; the pressurizing blocks correspond to the pressurizing bolts respectively; the pressurizing blocks are sliding blocks and slide along corresponding sliding grooves; the sliding groove is arranged in the inner cavity of the lower die and extends along the length direction of the blade in the profile of the inner cavity; the pressurizing bolt passes through the lower die from the outside of the lower die, and the top end of the pressurizing bolt is contacted with the pressurizing block; after the die is assembled, the three pressing blocks are respectively pushed into the forming positions along the respective sliding grooves by the pressing bolts.
2. The mold according to claim 1, characterized in that: the distance between the pressurizing block and the blade forming position is 5-10 mm before die assembly, so that the laying of the carbon fiber cloth is not prevented at the initial stage of die assembly of the blade.
3. The mold according to claim 1, characterized in that: the pressurizing blocks correspond to two pressurizing bolts respectively.
4. A mould according to claim 2, characterized in that: the distance between the pressurizing block and the blade forming position before die assembly is 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521862.3A CN109676972B (en) | 2018-12-12 | 2018-12-12 | Integral forming die for carbon fiber blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521862.3A CN109676972B (en) | 2018-12-12 | 2018-12-12 | Integral forming die for carbon fiber blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109676972A CN109676972A (en) | 2019-04-26 |
| CN109676972B true CN109676972B (en) | 2024-04-09 |
Family
ID=66187685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811521862.3A Active CN109676972B (en) | 2018-12-12 | 2018-12-12 | Integral forming die for carbon fiber blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109676972B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232141A (en) * | 2007-02-22 | 2008-10-02 | Toray Ind Inc | Wind mill blade, its mold, and its manufacturing method |
| CN103831980A (en) * | 2012-11-27 | 2014-06-04 | 比亚迪股份有限公司 | Preparation method of notched curved fiber pipe and mould |
| CN105415709A (en) * | 2015-12-16 | 2016-03-23 | 上海晋飞新材料科技有限公司 | Forming process and making die for antiflaming camber beam formed through 3D nylon air duct |
| CN205467426U (en) * | 2016-03-02 | 2016-08-17 | 成都飞机工业（集团）有限责任公司 | Be used for fashioned mechanical pressure device of compound material covering |
| CN108177360A (en) * | 2017-12-25 | 2018-06-19 | 航天神舟飞行器有限公司 | The forming frock and its forming method of unmanned plane composite wing integral panel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9726192B2 (en) * | 2015-03-31 | 2017-08-08 | Assa Abloy Entrance Systems Ab | Fan blades and associated blade tips |
-
2018
- 2018-12-12 CN CN201811521862.3A patent/CN109676972B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008232141A (en) * | 2007-02-22 | 2008-10-02 | Toray Ind Inc | Wind mill blade, its mold, and its manufacturing method |
| CN103831980A (en) * | 2012-11-27 | 2014-06-04 | 比亚迪股份有限公司 | Preparation method of notched curved fiber pipe and mould |
| CN105415709A (en) * | 2015-12-16 | 2016-03-23 | 上海晋飞新材料科技有限公司 | Forming process and making die for antiflaming camber beam formed through 3D nylon air duct |
| CN205467426U (en) * | 2016-03-02 | 2016-08-17 | 成都飞机工业（集团）有限责任公司 | Be used for fashioned mechanical pressure device of compound material covering |
| CN108177360A (en) * | 2017-12-25 | 2018-06-19 | 航天神舟飞行器有限公司 | The forming frock and its forming method of unmanned plane composite wing integral panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109676972A (en) | 2019-04-26 |
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