CN107901324B - Pouring method for double-layer fan blades - Google Patents
Pouring method for double-layer fan blades Download PDFInfo
- Publication number
- CN107901324B CN107901324B CN201711060212.9A CN201711060212A CN107901324B CN 107901324 B CN107901324 B CN 107901324B CN 201711060212 A CN201711060212 A CN 201711060212A CN 107901324 B CN107901324 B CN 107901324B
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- China
- Prior art keywords
- blade
- circle
- hub
- layer
- double
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Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 210000003205 muscle Anatomy 0.000 claims description 28
- 238000001746 injection moulding Methods 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 description 9
- 229920003023 plastic Polymers 0.000 description 9
- 238000000465 moulding Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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 provides a pouring method of a double-layer fan blade, wherein the double-layer fan blade comprises a hub, an inner layer blade and an outer layer blade, the inner layer blade is sleeved on the outer side of the hub, the outer layer blade is sleeved on the outer side of the inner layer blade, and the pouring method comprises the following steps: a. both the hub and the outer blade are provided with inlet gates; b. opening the gate at the hub for pouring, and opening the gate on the outer blade after a set time. According to the pouring method for the double-layer fan blade, the pouring gates are arranged on the hub and the outer-layer blade, so that the pressure required during injection molding can be reduced, the outer-layer blade and the inner-layer blade can be fully filled at the same time, and the dimensional index, the weight index, the deformation index and the dynamic balance index of the double-layer fan blade are ensured to meet the requirements.
Description
Technical Field
The invention relates to the technical field of fan blade pouring, in particular to a pouring method of a double-layer fan blade.
Background
The existing fan blades are poured in by adopting needle point type hot runner hot nozzles at the hub of a fan blade wheel, so that the pouring balance is achieved, the dynamic balance is met, and when the double-layer fan blades are poured in, if the double-layer fan blades are only poured in from the hub of the double-layer fan blades, the injection pressure is high, and the blades which are positioned at the inner layer or the outer layer can not be fully filled at the same time, the dynamic balance of the double-layer fan blades can not be ensured.
Disclosure of Invention
In order to solve the technical problem, the pouring method of the double-layer fan blade is provided, which can ensure that the rubber material reaches the tail end of the fan blade at the same time and reduce the injection pressure.
A pouring method of a double-layer fan blade comprises a hub, an inner layer blade and an outer layer blade, wherein the inner layer blade is sleeved on the outer side of the hub, the outer layer blade is sleeved on the outer side of the inner layer blade, and the pouring method comprises the following steps:
step a, arranging inlet gates on the hub and the outer side blades;
and b, opening the gate at the hub to perform pouring, and opening the gate on the outer blade after a set time.
The thickness of the inner layer blade is larger than that of the outer layer blade.
In step a, a pin point type or pin valve type hot runner hot nozzle is adopted as the inlet gate at the hub, and a pin valve type hot runner hot nozzle is adopted as the inlet gate at the outer blade.
In the step b, the set time is calculated according to the size of the inner layer blade, the pouring pressure and the size of the pouring gate.
The inner blade with still be provided with the dark muscle of circle between the outer blade, all keeping away from of inboard blade wheel hub's one end all set up in on the dark muscle of circle, all outer blade evenly distributed in on the lateral surface of the dark muscle of circle, in step a advance the runner on the blade in the outside is in the position of the dark muscle of circle.
The inlayer blade with still be provided with the dark muscle of circle between the outer blade, all keeping away from of inboard blade wheel hub's one end all set up in on the dark muscle of circle, all outer blade evenly distributed in on the lateral surface of the dark muscle of circle, in step a the runner that advances on the blade in the outside is in the dark muscle of circle is kept away from the side of inboard blade, and with the position intercommunication of the dark muscle of circle.
The number of the outer side blades is multiple, a space is reserved between every two adjacent outer side blades, and in the step a, one inlet gate is arranged in each space.
According to the pouring method for the double-layer fan blade, the pouring gates are arranged on the hub and the outer-layer blade, so that the pressure required during injection molding can be reduced, the outer-layer blade and the inner-layer blade can be fully filled at the same time, and the dimensional index, the weight index, the deformation index and the dynamic balance index of the double-layer fan blade are ensured to meet the requirements.
Drawings
Fig. 1 is a schematic structural view of a double-layer fan blade of the pouring method for the double-layer fan blade provided by the invention;
in the figure:
1. a hub; 2. an inner layer blade; 3. outer layer blades; 4. the circle is deep.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the pouring method for the double-layer fan blade includes a hub 1, an inner layer blade 2 and an outer layer blade 3, the inner layer blade 2 is sleeved on the outer side of the hub 1, the outer layer blade 3 is sleeved on the outer side of the inner layer blade 2, and the pouring method includes:
step a, arranging inlet gates on the hub 1 and the outer side blades;
and b, opening the gate at the hub 1 to perform gate casting, and opening the gate on the outer blade after a set time.
After the die is closed, the main runner supplies plastic to all the inlet gates, the inlet gates on the hub 1 begin to perform injection molding, when the plastic flows to the tail end of the inner-layer blade 2, the inlet gates on the outer-layer blade 3 begin to perform injection molding, and the plastic basically reaches the tail end of the blade at the same time, so that the product size index, the weight index, the deformation index and the dynamic balance index can meet the requirements.
The thickness of inlayer blade 2 is greater than the thickness of outer blade 3, and the time of also moulding plastics inlayer blade 2 is greater than outer blade 3's time, consequently, need mould plastics wheel hub 1 and inlayer blade 2 earlier, and then can guarantee that the plastic arrives simultaneously inlayer blade 2 outer blade 3's end.
In the step a, a needle point type or needle valve type hot runner hot nozzle is adopted as the gate inlet at the hub 1, a needle valve type hot runner hot nozzle is adopted as the gate inlet at the outer blade, the needle valve type hot runner hot nozzle comprises a valve needle, and the opening and closing of the needle valve type hot runner hot nozzle are controlled by controlling the valve needle, so that the injection molding time of the outer-layer blade 3 is controlled.
In step b, the set time is calculated according to the size of the inner layer blade 2, the pouring pressure and the size of the pouring gate.
When moulding plastics double-deck blade, when the mould is modular structure, inlayer blade 2 with still be provided with the dark muscle 4 of circle between the outer blade 3, all keeping away from of inboard blade wheel hub 1's one end all set up in on the dark muscle 4 of circle, all outer blade 3 evenly distributed in on the lateral surface of the dark muscle 4 of circle, in step a advance the runner on the blade in the outside is in the position of the dark muscle 4 of circle reduces injection pressure, is favorable to the production of moulding plastics.
When moulding plastics double-deck blade, when the mould is for inlaying the piece together formula structure, inlayer blade 2 with still be provided with the dark muscle 4 of circle between the outer blade 3, all keeping away from of inboard blade wheel hub 1's one end all set up in on the dark muscle 4 of circle, all outer blade 3 evenly distributed in on the lateral surface of the dark muscle 4 of circle, in step a advance runner on the outside blade is in the dark muscle 4 of circle is kept away from the side of inboard blade, advance on the latent circle of runner commentaries on classics the dark muscle 4 of circle on with the position intercommunication of the dark muscle 4 of circle.
The number of the outer side blades is multiple, a space is reserved between every two adjacent outer side blades, and in the step a, one inlet gate is arranged in each space.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. The utility model provides a method of watering of advancing of double-deck fan blade, double-deck fan blade includes wheel hub (1), inlayer blade (2) and outer blade (3), the outside at wheel hub (1) is established to inlayer blade (2) cover, the outside at inlayer blade (2) is established to outer blade (3) cover, its characterized in that: the pouring method comprises the following steps:
step a, arranging inlet gates on the hub (1) and the outer side blades;
b, opening the gate at the hub (1) for pouring, and opening the gate on the outer blade after a set time.
2. A method of teeming as claimed in claim 1, wherein: the thickness of the inner layer blade (2) is larger than that of the outer layer blade (3).
3. A method of teeming as claimed in claim 1, wherein: in the step a, a pin point type or pin valve type hot runner hot nozzle is adopted as the inlet gate at the hub (1), and a pin valve type hot runner hot nozzle is adopted as the inlet gate at the outer blade.
4. A method of teeming as claimed in claim 1, wherein: in the step b, the set time is calculated according to the size of the inner layer blade (2), the pouring pressure and the pouring gate size.
5. A method of teeming as claimed in claim 1, wherein: inlayer blade (2) with still be provided with the dark muscle of circle (4) between outer blade (3), all keeping away from of inboard blade the one end of wheel hub (1) all set up in on the dark muscle of circle (4), all outer blade (3) evenly distributed in on the lateral surface of the dark muscle of circle (4), in step a the runner that advances on the blade in the outside is in the position of the dark muscle of circle (4).
6. A method of teeming as claimed in claim 1, wherein: inlayer blade (2) with still be provided with the dark muscle of circle (4) between outer blade (3), all keeping away from of inboard blade the one end of wheel hub (1) all set up in on the dark muscle of circle (4), all outer blade (3) evenly distributed in on the lateral surface of the dark muscle of circle (4), in step a the runner that advances on the blade in the outside is in the dark muscle of circle (4) is kept away from the side of inboard blade, and with the position intercommunication of the dark muscle of circle (4).
7. A method of teeming as claimed in claim 1, wherein: the number of the outer side blades is multiple, a space is reserved between every two adjacent outer side blades, and in the step a, one inlet gate is arranged in each space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711060212.9A CN107901324B (en) | 2017-11-01 | 2017-11-01 | Pouring method for double-layer fan blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711060212.9A CN107901324B (en) | 2017-11-01 | 2017-11-01 | Pouring method for double-layer fan blades |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107901324A CN107901324A (en) | 2018-04-13 |
| CN107901324B true CN107901324B (en) | 2020-07-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711060212.9A Active CN107901324B (en) | 2017-11-01 | 2017-11-01 | Pouring method for double-layer fan blades |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107901324B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799197A (en) * | 2018-05-31 | 2018-11-13 | 珠海格力精密模具有限公司 | The method of blade structure, air conditioner and blade structure detection |
| CN114589868B (en) * | 2022-02-23 | 2023-07-21 | 浙江得业电机科技有限公司 | High dynamic balance fan blade |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1689784A (en) * | 2004-04-26 | 2005-11-02 | 博格华纳公司 | Plastic fans having improved fan ring weld line strength |
| JP2008240565A (en) * | 2007-03-26 | 2008-10-09 | Mitsuba Corp | Fan |
| CN202360455U (en) * | 2011-12-08 | 2012-08-01 | 陈国荣 | Double-layered fan impeller |
| CN203175906U (en) * | 2013-03-06 | 2013-09-04 | 福州斯狄渢电热水器有限公司 | Double-fan-blade fan |
| TW201410990A (en) * | 2012-09-12 | 2014-03-16 | Wan-Ju Chang | Double layer fan blade structure for fan |
| CN206475391U (en) * | 2017-01-23 | 2017-09-08 | 珠海格力大金精密模具有限公司 | Axial-flow leaf injection mold enters adhesive dispenser |
-
2017
- 2017-11-01 CN CN201711060212.9A patent/CN107901324B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1689784A (en) * | 2004-04-26 | 2005-11-02 | 博格华纳公司 | Plastic fans having improved fan ring weld line strength |
| JP2008240565A (en) * | 2007-03-26 | 2008-10-09 | Mitsuba Corp | Fan |
| CN202360455U (en) * | 2011-12-08 | 2012-08-01 | 陈国荣 | Double-layered fan impeller |
| TW201410990A (en) * | 2012-09-12 | 2014-03-16 | Wan-Ju Chang | Double layer fan blade structure for fan |
| CN203175906U (en) * | 2013-03-06 | 2013-09-04 | 福州斯狄渢电热水器有限公司 | Double-fan-blade fan |
| CN206475391U (en) * | 2017-01-23 | 2017-09-08 | 珠海格力大金精密模具有限公司 | Axial-flow leaf injection mold enters adhesive dispenser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107901324A (en) | 2018-04-13 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 519070 No. 789 Jinji Road, Qianshan, Zhuhai City, Guangdong Province (Mold Factory) Applicant after: ZHUHAI GREE PRECISION MOLD Co.,Ltd. Applicant after: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI Address before: 519070 No. 789 Jinji Road, Qianshan, Shenzhen, Guangdong Province (Mold Factory) Applicant before: ZHUHAI GREE PRECISION MOLD Co.,Ltd. Applicant before: GREE ELECTRIC APPLIANCES Inc. OF ZHUHAI |
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