CN110733149B - Rapid pouring forming die for wind power blade shell and manufacturing method thereof - Google Patents
Rapid pouring forming die for wind power blade shell and manufacturing method thereof Download PDFInfo
- Publication number
- CN110733149B CN110733149B CN201911023801.9A CN201911023801A CN110733149B CN 110733149 B CN110733149 B CN 110733149B CN 201911023801 A CN201911023801 A CN 201911023801A CN 110733149 B CN110733149 B CN 110733149B
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- Prior art keywords
- blade shell
- arc
- flow guiding
- diversion
- flow guide
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000003292 glue Substances 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 239000011152 fibreglass Substances 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims description 30
- 229920005989 resin Polymers 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 6
- 238000010112 shell-mould casting Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000001802 infusion Methods 0.000 claims 2
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 4
- 239000004576 sand Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/36—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and impregnating by casting, e.g. vacuum casting
-
- 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
- B29L2031/085—Wind turbine blades
Abstract
The invention discloses a rapid pouring forming die for a wind power blade shell and a manufacturing method thereof, and the rapid pouring forming die comprises a blade shell die female die and a flow guide pipe network, wherein the surface of glass fiber reinforced plastic of the blade shell die female die is formed into an arc-shaped surface which is suitable for the shape of a blade, a plurality of flow guide grooves are uniformly distributed on the arc-shaped surface, each flow guide groove extends to the other end along one end of the blade shell die female die, the flow guide pipe network is arranged on the arc-shaped surface and consists of a plurality of flow guide pipes, the flow guide pipes are crisscrossed to form a reticular structure, the flow guide pipes which are intersected in pairs are mutually communicated, the number of longitudinal flow guide pipes is the same as that of the flow guide grooves, one longitudinal flow guide pipe is correspondingly arranged in one flow guide groove, the two ends of each flow guide pipe are glue injection points, and a plurality of glue outlet holes are formed on the upper surface of each flow guide pipe. The invention realizes the rapid molding of the mold, saves molding time, saves product yield, avoids the defect risks of enveloping the bottom surface of the product and dry sand, and improves the quality of the product.
Description
Technical Field
The invention relates to the technical field of wind turbine generator system blade mould structures and diversion systems, in particular to a rapid pouring forming mould for a wind turbine blade shell and a manufacturing method thereof.
Background
At present, the traditional manufacturing method of the blade shell is to respectively lay a structural cloth layer, a girder, a core material and the like on the SS surface and the PS surface of the blade, and then to place auxiliary diversion materials on the surface of the structural layer after the structural layer is completely laid. Then, a vacuum pumping and maintaining system is manufactured, and finally, resin is introduced. The resin is sequentially pushed to be poured and molded on the surface of the structural layer through the surface diversion material from the surface to the bottom in the thickness direction, and in the width (chord direction) and length (axial direction). The disadvantage is that the resin of the blade shell is introduced into the molding process for a long time. The resin is introduced into the structural layer of the product to be infiltrated through a conventional flow guide pipe, and the steps are analogized from one side to the other side in sequence. Typically, to save time, the middle feed tube is opened first and the resin is pushed from the middle of the product to both sides of the front and rear edges. However, the whole process time is longer due to the larger surface of the product, and the requirement on the gel time of the resin is higher. Another disadvantage is that the flow guiding means guides the flow of the resin from the upper surface to the bottom surface of the product in the thickness direction of the product. If the surface resin is conducted too quickly, the supply of the bottom resin is slower to infiltrate and the flow rate of the surface resin is not synchronous, which is likely to cause the phenomenon of lack of resin on the bottom surface or partial resin surrounding on the bottom surface of the product, so that the product has serious defects. After the pouring is finished, whether the pouring quality of the bottom surface of the product is good or not is not determined, so that the technological process is difficult to control, and the influence factors are more.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a rapid pouring forming die for a wind power blade shell and a manufacturing method thereof, which change the existing resin flow guiding mode from the surface of a product to the bottom surface and from the middle of the product to two sides into a uniform forming mode from the surface of the die (namely the bottom surface of the product) to the surface of the product, realize rapid forming of the die, greatly save forming time, save production efficiency, avoid defect risks of enveloping the bottom surface of the product and dry sand, and improve product quality.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the utility model provides a wind-powered electricity generation blade shell fills forming die fast, includes blade shell mould female die, still includes the water conservancy diversion pipe net, the glass steel surface of blade shell mould female die forms to the arc profile of adaptation blade shape, and the equipartition has a plurality of guiding channels on the arc profile, and every guiding channel extends to the other end along the one end of blade shell mould female die, the water conservancy diversion pipe net is located on the arc profile to constitute by a plurality of honeycomb ducts, and this a plurality of honeycomb ducts vertically and horizontally staggered constitutes network structure, communicates each other between the two crisscross honeycomb ducts, the quantity of fore-and-aft honeycomb duct is the same with the quantity of guiding channel, and a fore-and-horizontally honeycomb duct corresponds locates in the guiding channel, the both ends of honeycomb duct are the injecting glue point, and the upper surface of every honeycomb duct still is formed with a plurality of glue outlets, is connected through advancing the glue hose with the injecting glue point with the supporting resin machine of mould, realizes following the mould surface that blade shell bottom surface to the resin water conservancy diversion shaping mode of blade shell surface.
Further, the lower surface of the flow guide pipe is shaped to adapt to the shape of the flow guide groove, the upper surface of the flow guide pipe is shaped to adapt to the arc-shaped surface of the arc-shaped surface, and the arc-shaped surface of the longitudinal flow guide pipe is flush with the arc-shaped surface.
A method for manufacturing a rapid pouring molding die of a wind power blade shell comprises the following steps,
1) Processing the surface of the glass fiber reinforced plastic of the female die of the blade shell into an arc-shaped surface which is suitable for the shape of the blade, and processing a plurality of diversion trenches on the arc-shaped surface, wherein each diversion trench extends from one end of the female die of the blade shell to the other end of the female die of the blade shell;
2) Assembling a diversion pipe network, wherein the lower surface of each diversion pipe is processed into a shape suitable for diversion grooves, the upper surface of each diversion pipe is processed into an arc-shaped surface suitable for an arc-shaped surface, a plurality of glue outlets are processed on the upper surface of each diversion pipe for diversion resin in the pouring process, glue injection points are arranged at two ends of each diversion pipe, the diversion pipes are crisscrossed to form a reticular structure, the number of the diversion pipes is the same as that of the diversion grooves, and the assembled diversion pipe network is arranged on the arc-shaped surface in a mode that one diversion pipe corresponds to one diversion groove, so that the upper surface of each diversion pipe is level with the arc-shaped surface;
3) The method comprises the steps of selecting to increase or decrease glue injection points according to the requirements of blade shell molding in different areas, connecting a resin machine matched with a mold with the selected glue injection points through a glue injection hose, and blocking the unnecessary glue injection points to form a glue injection system;
4) And sequentially paving a blade shell structural layer and an air extraction vacuum system, and connecting the air extraction vacuum system with a vacuum pump to realize a resin flow guiding forming mode from the surface of the die, namely the bottom surface of the blade shell to the surface of the blade shell.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the invention, the existing resin flow guiding mode from the surface of the product to the bottom surface and from the middle of the product to the two sides is changed into the molding mode from the surface of the mold (namely the bottom surface of the product) to the surface of the product through the design of the flow guiding groove and the flow guiding pipe network, so that the resin introducing efficiency is high, the optimization and the rapid molding of the mold are realized, the molding time is greatly saved, and the product yield is saved.
2. The mold provided by the invention provides a stable diversion and drainage channel through the design of the diversion pipe network, avoids the risk of resin surrounding on the bottom surface of the product, reduces the filling time, reduces the filling risk and improves the product quality.
Drawings
Fig. 1 is a schematic diagram of the operation of the mold of the present invention.
Fig. 2 is an enlarged view of a portion of the mold of the present invention.
Fig. 3 is a schematic structural view of the diversion trench of the present invention.
Fig. 4 is a schematic structural diagram of a diversion pipe network according to the present invention.
Fig. 5 is a schematic structural diagram of a flow guiding tube according to the present invention.
Detailed Description
The invention will be further illustrated with reference to specific examples.
As shown in fig. 1 to 5, the rapid filling forming mold for wind power blade shells of this embodiment includes a female mold 1 for blade shells, and further includes a flow guiding pipe network, the surface of the female mold 1 for blade shells is formed into an arc-shaped surface 101 adapted to the shape of the blade, and a plurality of flow guiding grooves 102 are uniformly distributed on the arc-shaped surface 101, each flow guiding groove 102 extends to the other end along one end of the female mold 1 for blade shells, the flow guiding pipe network is arranged on the arc-shaped surface 101 and is composed of a plurality of flow guiding pipes 201, the lower surface of the flow guiding pipe 201 is formed into a shape adapted to the flow guiding grooves 102, the upper surface of the flow guiding pipe network is formed into an arc-shaped surface adapted to the arc-shaped surface 101, two ends of the flow guiding pipes 201 are provided with glue injection points 2012, the upper surface of the flow guiding pipe network is further formed with a plurality of glue outlet holes 2011, the flow guiding pipes 201 are crisscross to form a net-shaped flow guiding structure, the two intersecting flow guiding pipes 201 are mutually communicated and are connected through connectors 202, the connectors 202 are arranged on the upper surface of the flow guiding pipes 201, most preferably the lower surface of the flow guiding pipes 201 are arranged on the surface of the flow guiding pipe, the product is less in influence on the product forming appearance, the quantity of the flow guiding pipes 201 is equal to the flow guiding grooves 201, and the quantity of the flow guiding pipes is equal to the flow guiding pipes 201, and the flow guiding pipes are corresponding to the flow guiding pipes 201, namely, the flow guiding pipes 201 are enabled to have the same length, and the flow guiding pipe surface to have the effect on the flow guiding pipes to be aligned with the surface of the flow guiding pipe 201, and the surface is formed by the corresponding to the flow guiding pipe 201.
The manufacturing method of the rapid pouring molding die for the wind power blade shell comprises the following steps,
1) The method comprises the steps of processing the surface of glass fiber reinforced plastic of a female die 1 of a blade shell into an arc-shaped surface 101 adapting to the shape of a blade, processing a plurality of diversion trenches 102 on the arc-shaped surface 101, wherein each diversion trench 102 extends to the other end along one end of the female die 1 of the blade shell, and arranging a feeding pipe on the surface of a structural layer in a mode of manually processing the surface of the glass fiber reinforced plastic in advance, wherein risks are uncontrollable;
2) The method comprises the steps of assembling a diversion pipe network, wherein the diversion pipe network is formed by assembling a plurality of special diversion pipes 201, the lower surface of the diversion pipe 201 is processed to adapt to the shape of a diversion groove 102, the upper surface of the diversion pipe 201 is processed to adapt to the arc surface of an arc-shaped molded surface 101, a plurality of glue outlet holes 2011 are processed and are used for diversion resin in the pouring process, two ends of the diversion resin are glue injection points 2012, the diversion pipes 201 are crisscrossed to form a net-shaped diversion structure, the number of the longitudinal diversion pipes 201 is the same as that of the diversion grooves 102, the assembled diversion pipe network is arranged on the arc-shaped molded surface 101 in a mode that one longitudinal diversion pipe 201 corresponds to one diversion groove 102, the upper surface of the diversion pipe 201 is guaranteed to be flush with the arc-shaped molded surface 101, and the influence of the diversion pipe 201 on the appearance of product molding is minimized;
3) Selecting to increase or decrease glue injection points 2012 according to the requirements of blade shell molding in different areas, connecting a resin machine 3 matched with a mold with the selected glue injection points 2012 through a glue injection hose, and plugging the unwanted glue injection points 2012 to form a glue injection system;
4) And a structural layer of the blade shell and an air extraction vacuum system are paved in sequence, and the air extraction vacuum system is connected with a vacuum pump 4, so that a resin flow guiding forming mode from the surface of the die, namely the bottom surface of the blade shell to the surface of the blade shell is realized.
The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so variations in shape and principles of the present invention should be covered.
Claims (3)
1. The utility model provides a wind-powered electricity generation blade shell fills forming die fast, includes blade shell mould bed die, its characterized in that: the novel plastic flow guiding device comprises a blade shell die, and is characterized by further comprising a flow guiding pipe network, wherein the surface of the glass fiber reinforced plastic of the blade shell die is formed into an arc-shaped surface which is suitable for the shape of a blade, a plurality of flow guiding grooves are uniformly distributed on the arc-shaped surface, each flow guiding groove extends to the other end along one end of the blade shell die, the flow guiding pipe network is arranged on the arc-shaped surface and consists of a plurality of flow guiding pipes, the flow guiding pipes are crisscrossed to form a net structure, the flow guiding pipes intersecting with each other in pairs are mutually communicated, the number of the longitudinal flow guiding pipes is identical to that of the flow guiding grooves, one longitudinal flow guiding pipe is correspondingly arranged in one flow guiding groove, the two ends of each flow guiding pipe are provided with glue injecting points, a plurality of glue injecting holes are further formed in the upper surface of each flow guiding pipe, and a resin machine matched with the die is connected with the glue injecting points through a glue injecting hose, so that the resin flow guiding forming mode from the surface of the blade shell bottom to the surface of the blade shell.
2. The rapid infusion molding die for a wind turbine blade shell according to claim 1, wherein: the lower surface of the flow guide pipe is formed into a shape suitable for the flow guide groove, the upper surface of the flow guide pipe is formed into an arc-shaped surface suitable for the arc-shaped surface, and the arc-shaped surface of the longitudinal flow guide pipe is flush with the arc-shaped surface.
3. A method for manufacturing a rapid infusion molding die for a wind turbine blade shell according to claim 1, comprising the following steps,
1) Processing the surface of the glass fiber reinforced plastic of the female die of the blade shell into an arc-shaped surface which is suitable for the shape of the blade, and processing a plurality of diversion trenches on the arc-shaped surface, wherein each diversion trench extends from one end of the female die of the blade shell to the other end of the female die of the blade shell;
2) Assembling a diversion pipe network, wherein the lower surface of each diversion pipe is processed into a shape suitable for diversion grooves, the upper surface of each diversion pipe is processed into an arc-shaped surface suitable for an arc-shaped surface, a plurality of glue outlets are processed on the upper surface of each diversion pipe for diversion resin in the pouring process, glue injection points are arranged at two ends of each diversion pipe, the diversion pipes are crisscrossed to form a reticular structure, the number of the diversion pipes is the same as that of the diversion grooves, and the assembled diversion pipe network is arranged on the arc-shaped surface in a mode that one diversion pipe corresponds to one diversion groove, so that the upper surface of each diversion pipe is level with the arc-shaped surface;
3) The method comprises the steps of selecting to increase or decrease glue injection points according to the requirements of blade shell molding in different areas, connecting a resin machine matched with a mold with the selected glue injection points through a glue injection hose, and blocking the unnecessary glue injection points to form a glue injection system;
4) And sequentially paving a blade shell structural layer and an air extraction vacuum system, and connecting the air extraction vacuum system with a vacuum pump to realize a resin flow guiding forming mode from the surface of the die, namely the bottom surface of the blade shell to the surface of the blade shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911023801.9A CN110733149B (en) | 2019-10-25 | 2019-10-25 | Rapid pouring forming die for wind power blade shell and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911023801.9A CN110733149B (en) | 2019-10-25 | 2019-10-25 | Rapid pouring forming die for wind power blade shell and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN110733149A CN110733149A (en) | 2020-01-31 |
| CN110733149B true CN110733149B (en) | 2024-03-26 |
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| CN201911023801.9A Active CN110733149B (en) | 2019-10-25 | 2019-10-25 | Rapid pouring forming die for wind power blade shell and manufacturing method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113021942A (en) * | 2021-03-09 | 2021-06-25 | 中材科技风电叶片股份有限公司 | Vacuum integrated system for manufacturing wind power blade and control method for vacuum integrated system |
| CN114953503A (en) * | 2022-05-16 | 2022-08-30 | 株洲时代新材料科技股份有限公司 | Wind power blade integrated pouring forming system and method and wind power blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6555045B2 (en) * | 1999-01-11 | 2003-04-29 | Northrop Grumman Corporation | Grooved mold apparatus and process for forming fiber reinforced composite structures |
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