CN105290336A - Hollow type wheel sand core with positioning function and exhaust function - Google Patents
Hollow type wheel sand core with positioning function and exhaust function Download PDFInfo
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- CN105290336A CN105290336A CN201510796191.1A CN201510796191A CN105290336A CN 105290336 A CN105290336 A CN 105290336A CN 201510796191 A CN201510796191 A CN 201510796191A CN 105290336 A CN105290336 A CN 105290336A
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Abstract
The invention relates to a hollow type wheel sand core with a positioning function and an exhaust function. The hollow type wheel sand core comprises a sand core body and is characterized in that the sand core body is of a hollow type structure with a sand core cavity; a plurality of rectangular positioning bodies evenly distributed in the circumferential direction and a plurality of cylindrical positioning bodies evenly distributed in the circumferential direction are arranged on the outer circumferential face of the sand core body; and the rectangular positioning bodies and the cylindrical positioning bodies are alternately arranged in the circumferential direction. The hollow type wheel sand core is simple in structure, reasonable in design and capable of greatly increasing the pouring yield of wheel products and improving production benefits.
Description
Technical field
The wheel core that the hollow type wheel that the present invention relates to gravitational casting uses when pouring into a mould, specifically a kind of hollow type wheel core with location and degassing function, belongs to automobile component processing and manufacturing technical field.
Background technology
In the prior art, the hollow type aluminum-alloy wheel of some gravitational casting, because the die cavity of its hollow is comparatively large, required core volume is also larger, and the core of traditional employing solid construction can cause the serious waste making core sand.For head it off, some cores adopt hollow type design, but due to hollow type core lighter in weight, when wheel die is poured into a mould, the buoyancy of hollow type core in aluminium liquid is excessive, and location is unstable, easily causes wheel product central cavity wall thickness produce skew and cause product rejection.And existing hollow type core die cavity is airtight, when wheel product is poured into a mould, the gas in core die cavity can produce thermal expansion, easily causes hidden danger of quality.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of hollow type wheel core with location and degassing function, its structure is simple, reasonable in design, greatly can promote the yields of wheel product cast, improves productivity effect.
According to technical scheme provided by the invention: the hollow type wheel core with location and degassing function, comprise core body, it is characterized in that: described core body is the hollow structure with core die cavity, be provided with several circumferentially uniform rectangle positioning bodies and several circumferentially uniform cylindrical positioning bodies at the outer peripheral face of core body, described rectangle positioning body and cylindrical positioning body are arranged alternately at circumferencial direction interval.
As a further improvement on the present invention, described core body wall offers at least one by the through steam vent of core die cavity and the external world.
As a further improvement on the present invention, described steam vent is opened on rectangle positioning body.
As a further improvement on the present invention, the aperture of described steam vent is 5mm.
As a further improvement on the present invention, the wall thickness of described core body is 8 ~ 12mm.
As a further improvement on the present invention, the wall thickness of described core body is 10mm.
compared with prior art, tool has the following advantages in the present invention:
1, core design of the present invention is hollow type, solves the situation of serious waste sand because sand core volume is large, adopts this kind of structure, greatly can save sand; Wall thickness as core body is 10mm, can save sand more than 45%.
2, core of the present invention has designed and produced two kinds of positioning bodies, these two kinds of positioning bodies can coordinate with mould when wheel product is poured into a mould, and guarantee that core location is firm, ensure the quality of production of wheel product.
3, core design of the present invention steam vent, steam vent by core die cavity and the external world through, can be drained in wheel die gas extraction system by steam vent after the gas when wheel is poured into a mould in core die cavity produces thermal expansion, can not hidden danger of quality be produced.
Accompanying drawing explanation
Fig. 1 is the structure top view of the embodiment of the present invention.
Fig. 2 is that A-A in Fig. 1 is to sectional view.
Fig. 3 is the structural representation of the hollow type wheel adopting wheel core cast in Fig. 1.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1 and Figure 2, the WR007 disc-brake rear wheel of hollow type wheel core for the ARASHI in construction drawing 3 with location and degassing function in embodiment.This hollow type wheel core mainly comprises core body 1, described core body 1 is for having the hollow structure of core die cavity, be provided with several circumferentially uniform rectangle positioning body 2 and several circumferentially uniform cylindrical positioning bodies 3 at the outer peripheral face of core body 1, described rectangle positioning body 2 and cylindrical positioning body 3 are arranged alternately at circumferencial direction interval.By arranging two kinds of above-mentioned positioning bodies, when wheel product is poured into a mould, positioning body coordinates with mould, can guarantee that core location is firm, ensure 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, and width w is 24mm; The diameter R of described cylindrical positioning body is 9mm.
As indicated with 2, in the embodiment of the present invention, described core body 1 wall offers at least one by the through steam vent 4 of core die cavity and the external world, can be drained in wheel die gas extraction system by steam vent 4 after gas when wheel is poured into a mould in core die cavity produces thermal expansion, can not hidden danger of quality be produced.Preferably, described steam vent 4 is opened on rectangle positioning body 2, and the aperture of steam vent 4 is 5mm.
For example, the WR007 disc-brake rear wheel of ARASHI is hollow type wheel, and core needs placement to enter when pouring into a mould, and the weight being applicable to the solid sand core of this wheel is about 1.6Kg, and consumption sand amount is many.Even if there is such weight, but if do not located reliably, still easily there is skew when wheel is poured into a mould and cause wheel product to occur defect in core, fraction defective can reach more than 1%.
After using hollow type core of the present invention instead, the weight of this core only has about 0.85Kg, has greatly saved sand consumption.And two kinds of position bodies on core can ensure that core does not offset, fraction defective is almost nil.
Claims (6)
1. there is the hollow type wheel core of location and degassing function, comprise core body (1), it is characterized in that: described core body (1) is for having the hollow structure of core die cavity, be provided with several circumferentially uniform rectangle positioning bodies (2) and several circumferentially uniform cylindrical positioning bodies (3) at the outer peripheral face of core body (1), described rectangle positioning body (2) and cylindrical positioning body (3) are arranged alternately at circumferencial direction interval.
2. there is location and the hollow type wheel core of degassing function as claimed in claim 1, it is characterized in that: described core body (1) wall offers at least one by the through steam vent (4) of core die cavity and the external world.
3. there is the hollow type wheel core of location and degassing function as claimed in claim 2, it is characterized in that: described steam vent (4) is opened on rectangle positioning body (2).
4. there is the hollow type wheel core of location and degassing function as claimed in claim 2 or claim 3, it is characterized in that: the aperture of described steam vent (4) is 5mm.
5. there is the hollow type wheel core of location and degassing function as claimed in claim 1, it is characterized in that: the wall thickness of described core body (1) is 8 ~ 12mm.
6. there is the hollow type wheel core of location and degassing function as claimed in claim 1, it is characterized in that: the wall thickness of described core body (1) is 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 true CN105290336A (en) | 2016-02-03 |
| CN105290336B CN105290336B (en) | 2018-01-09 |
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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 |
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| CN (1) | CN105290336B (en) |
Cited By (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 |
| CN111558690A (en) * | 2020-06-15 | 2020-08-21 | 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 |
Cited By (3)
| 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 |
| CN111558690A (en) * | 2020-06-15 | 2020-08-21 | 新兴铸管股份有限公司 | Core box of annular sand core |
| CN111558690B (en) * | 2020-06-15 | 2021-07-27 | 新兴铸管股份有限公司 | Core box of annular sand core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105290336B (en) | 2018-01-09 |
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