CN105290336B - Hollow type wheel core with positioning and degassing function - Google Patents
Hollow type wheel core with positioning and degassing function Download PDFInfo
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- CN105290336B CN105290336B CN201510796191.1A CN201510796191A CN105290336B CN 105290336 B CN105290336 B CN 105290336B CN 201510796191 A CN201510796191 A CN 201510796191A CN 105290336 B CN105290336 B CN 105290336B
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- core
- positioning
- hollow type
- type wheel
- degassing function
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Abstract
The present invention relates to the hollow type wheel core with positioning and degassing function, including core body, it is characterised in that：The core body is the hollow structure with core die cavity, several rectangle positioning bodies and several cylindrical positioning bodies being evenly distributed for being evenly distributed are provided with the outer peripheral face of core body, the rectangle positioning body and cylindrical positioning body alternate setting in circumferencial direction.The present invention is simple in construction, reasonable in design, can greatly promote the yields of wheel product cast, improves productivity effect.
Description
Technical field
The present invention relates to the wheel core that the hollow type wheel of gravitational casting uses in cast, specifically a kind of tool
There is the hollow type wheel core of positioning and degassing function, belong to automobile component processing and manufacturing technology.
Background technology
In the prior art, the hollow type aluminum-alloy wheel of some gravitational castings, it is required because its hollow die cavity is larger
Core volume it is also bigger, traditional core using solid construction can cause make core sand serious waste.For solution
Certainly this problem, some cores are designed using hollow type, but due to hollow type core lighter in weight, when wheel die is poured into a mould, in
Buoyancy of the casement core in aluminium liquid is excessive, and positioning is unstable, easily causes wheel product central cavity wall thickness to produce skew and make
Into product rejection.And existing hollow type core die cavity is closed, when wheel product is poured into a mould, the gas in core die cavity
Thermal expansion can be produced, easily causes hidden danger of quality.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of to have positioning and degassing function
Hollow type wheel core, its is simple in construction, reasonable in design, can greatly promote the yields of wheel product cast, improves production
Benefit.
According to technical scheme provided by the invention：Hollow type wheel core with positioning and degassing function, including core
Body, it is characterised in that：The core body is the hollow structure with core die cavity, is provided with the outer peripheral face of core body
Several rectangle positioning bodies being evenly distributed and several cylindrical positioning bodies for being evenly distributed, the rectangle positioning body and
Cylindrical positioning body alternates setting in circumferencial direction.
As a further improvement on the present invention, offered on the core body wall at least one by core die cavity and the external world
The steam vent of insertion.
As a further improvement on the present invention, the steam vent is opened on rectangle positioning body.
As a further improvement on the present invention, the aperture of the steam vent is 5mm.
As a further improvement on the present invention, the wall thickness of the core body is 8 ~ 12mm.
As a further improvement on the present invention, the wall thickness of the core body is 10mm.
The present invention compared with prior art, has the following advantages that：
1st, core design of the present invention is hollow type, is solved due to the sand core volume situation of serious waste sand greatly,
Using this kind of structure, sand can be greatlyd save；Wall thickness such as core body is 10mm, can save sand more than 45%.
2nd, two kinds of positioning bodies have been designed and produced on core of the invention, both positioning bodies can be when wheel product be poured into a mould
Coordinate with mould, it is ensured that core positioning is firm, ensures the quality of production of wheel product.
3rd, core design of the invention steam vent, steam vent penetrates core die cavity with extraneous, the sand when wheel is poured into a mould
The gas of core pattern intracavitary can be drained into wheel die gas extraction system after producing thermal expansion by steam vent, and it is hidden will not to produce quality
Suffer from.
Brief description of the drawings
Fig. 1 is the structure top view of the embodiment of the present invention.
Fig. 2 is A-A in Fig. 1 to sectional view.
Fig. 3 is the structural representation using the hollow type wheel that the cast of wheel core forms in Fig. 1.
Embodiment
With reference to specific drawings and examples, the invention will be further described.
As shown in Figure 1 and Figure 2, in embodiment there is the hollow type wheel core of positioning and degassing function to be used to make Fig. 3
In ARASHI WR007 disc-brake rear wheels.The hollow type wheel core mainly includes core body 1, and the core body 1 is tool
There is the hollow structure of core die cavity, several Hes of rectangle positioning body 2 being evenly distributed are provided with the outer peripheral face of core body 1
Several cylindrical positioning bodies 3 being evenly distributed, the rectangle positioning body 2 and cylindrical positioning body 3 are at circumferencial direction interval
It is arranged alternately.By setting two kinds of above-mentioned positioning bodies, when wheel product is poured into a mould, positioning body coordinates with mould, it can be ensured that
Core positioning is firm, ensures the quality of production of wheel product.In the embodiment of the present invention, the thickness d of described rectangle positioning body 2 is
33mm, width w are 24mm；The diameter R of the cylindrical positioning body is 9mm.
As indicated with 2, in the embodiment of the present invention, offered on the wall of core body 1 at least one by core die cavity and outer
The steam vent 4 of boundary's insertion, the gas when wheel is poured into a mould in core die cavity can be drained into car after producing thermal expansion by steam vent 4
Take turns in mould gas extraction system, hidden danger of quality will not be produced.Preferably, the steam vent 4 is opened on rectangle positioning body 2, exhaust
The aperture in hole 4 is 5mm.
Exemplified by, ARASHI WR007 disc-brake rear wheels are hollow type wheel, and core needs placement to enter, is adapted in cast
The weight of the solid sand core of this wheel is about 1.6Kg, and consumption sand amount is relatively more.Even if there is such weight, but if do not have
There is reliable positioning, core still easily shifts when wheel is poured into a mould and causes wheel product defect occur, and fraction defective is reachable
More than 1%.
After the hollow type core for using the present invention instead, the weight of the core only has 0.85Kg or so, greatlys save sand use
Amount.And two kinds of position bodies on core can ensure that core does not shift, fraction defective is almost nil.
Claims (4)
1. the hollow type wheel core with positioning and degassing function, including core body（1）, it is characterised in that：The core
Body（1）For the hollow structure with core die cavity, in core body（1）Outer peripheral face be provided with several and be evenly distributed
Rectangle positioning body（2）The cylindrical positioning body being evenly distributed with several（3）, the rectangle positioning body（2）Determine with cylinder
Position body（3）Setting is alternated in circumferencial direction；
The core body（1）Offered on wall at least one by core die cavity and the steam vent of extraneous insertion（4）；
The steam vent（4）It is opened in rectangle positioning body（2）On.
2. the hollow type wheel core with positioning and degassing function as claimed in claim 1, it is characterised in that：The exhaust
Hole（4）Aperture be 5mm.
3. the hollow type wheel core with positioning and degassing function as claimed in claim 1, it is characterised in that：The core
Body（1）Wall thickness be 8 ~ 12mm.
4. the hollow type wheel core with positioning and degassing function as claimed in claim 1, it is characterised in that：The core
Body（1）Wall thickness be 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796191.1A CN105290336B (en) | 2015-11-18 | 2015-11-18 | Hollow type wheel core with positioning and degassing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796191.1A CN105290336B (en) | 2015-11-18 | 2015-11-18 | Hollow type wheel core with positioning and degassing function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105290336A CN105290336A (en) | 2016-02-03 |
| CN105290336B true CN105290336B (en) | 2018-01-09 |
Family
ID=55188534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510796191.1A Active CN105290336B (en) | 2015-11-18 | 2015-11-18 | Hollow type wheel core with positioning and degassing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105290336B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106583665A (en) * | 2016-12-01 | 2017-04-26 | 西峡县内燃机进排气管有限责任公司 | Casting method for D-5B exhaust manifold |
| CN111558690B (en) * | 2020-06-15 | 2021-07-27 | 新兴铸管股份有限公司 | Core box of annular sand core |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0036273A2 (en) * | 1980-03-13 | 1981-09-23 | Caterpillar Tractor Co. | Method of, and pattern for use in, forming a sand mould, and method of producing an annular casting using the mould |
| CN101367125B (en) * | 2007-08-17 | 2011-07-27 | 通用汽车环球科技运作公司 | Casting method of noise-damped, vented brake rotors with embedded inserts |
| CN203578679U (en) * | 2013-11-27 | 2014-05-07 | 青岛大运机械有限公司 | Expendable pattern casting mold |
| CN203751237U (en) * | 2014-01-21 | 2014-08-06 | 浙江今飞凯达轮毂股份有限公司 | Sand core mold and sand core |
| CN203843116U (en) * | 2014-05-14 | 2014-09-24 | 佛山市南海中南铝车轮制造有限公司 | Aluminum alloy automobile hub mould structure |
| CN205270755U (en) * | 2015-11-18 | 2016-06-01 | 江苏中联铝业有限公司 | Well casement wheel psammitolite with location and exhausting function |
-
2015
- 2015-11-18 CN CN201510796191.1A patent/CN105290336B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0036273A2 (en) * | 1980-03-13 | 1981-09-23 | Caterpillar Tractor Co. | Method of, and pattern for use in, forming a sand mould, and method of producing an annular casting using the mould |
| CN101367125B (en) * | 2007-08-17 | 2011-07-27 | 通用汽车环球科技运作公司 | Casting method of noise-damped, vented brake rotors with embedded inserts |
| CN203578679U (en) * | 2013-11-27 | 2014-05-07 | 青岛大运机械有限公司 | Expendable pattern casting mold |
| CN203751237U (en) * | 2014-01-21 | 2014-08-06 | 浙江今飞凯达轮毂股份有限公司 | Sand core mold and sand core |
| CN203843116U (en) * | 2014-05-14 | 2014-09-24 | 佛山市南海中南铝车轮制造有限公司 | Aluminum alloy automobile hub mould structure |
| CN205270755U (en) * | 2015-11-18 | 2016-06-01 | 江苏中联铝业有限公司 | Well casement wheel psammitolite with location and exhausting function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105290336A (en) | 2016-02-03 |
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