CN104128566A - A new valve body casting head structure - Google Patents
A new valve body casting head structure Download PDFInfo
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- CN104128566A CN104128566A CN201410376802.2A CN201410376802A CN104128566A CN 104128566 A CN104128566 A CN 104128566A CN 201410376802 A CN201410376802 A CN 201410376802A CN 104128566 A CN104128566 A CN 104128566A
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- cap mouth
- feeding
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- valve body
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Abstract
The invention relates to the field of casting, and in particular to a new valve body casting head structure. The new valve body casting head structure can ensure the internal quality assurance of products, and meanwhile can increase the utilization rate of materials through arrangement of feeding heads on two products; the feeding heads are communicated with air, the casting head is directly contacted with the air, and enough feeding effect can be obtained by use of atmospheric pressure; compared with a closed riser in the prior art, the feeding effect of the casting head structure is increased by 50%-70%, the qualified rate of air tightness of products is greater than 99.5%; in addition, the casting fillet radius is not less than1 / 5 of the feeding head radius and is not greater than 15 mm, so that a casting fillet can fully meet the sequential solidification principle of aluminum alloy casting; and by arrangement of a e feed port in the middle of an ingate, two products can be casted by operation once, the product quality can be ensured, and meanwhile the production efficiency is greatly improved.
Description
Technical field
The present invention relates to casting field, relate in particular to a kind of novel dead head structure of valve body.
Background technology
Mould is the indispensable key tool of casting field, and Mould Machining has the advantages such as shaping speed is fast, steady quality, in different field, is used widely.
In prior art, arrange unreasonablely for the mould structure of casting of automobile exhaust gas recirculation valve, as directly poured into a mould from the installed surface of product, cause product easily to produce defect; Secondly, because product is less, and in prior art, the cap mouth of mould arranges unreasonablely, causes waste of material, the follow-up cutting operation of product inconvenient and easily damage the deficiency of product; Again, mould of the prior art once only can be cast a product, and production efficiency is low.
Summary of the invention
The novel dead head structure of a kind of valve body provided by the invention, be intended to overcome in prior art for the mould structure of casting of automobile exhaust gas recirculation valve arrange unreasonable, easily make product produce defect, deficiency that production efficiency is low.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of novel dead head structure of valve body, comprise product ontology and the inner core that is used to form product ontology inner chamber, described product ontology has two, between two product ontologies, be provided with for making to cast the ingate that liquid passes through, also comprise the charging aperture for supply with casting liquid in ingate, described charging aperture is arranged on the centre position of ingate length direction, on two product ontologies, be equipped with feeding cap mouth, described feeding cap mouth communicates with air, between described feeding cap mouth and product, be also provided with the curving of castings, the radius of the described curving of castings be not less than feeding cap port radius 1/5 and be not more than 15 millimeters.
As preferably, between two product ontologies, be also provided with and share cap mouth, the diameter of described shared cap mouth is 1.3 times to 1.5 times of feeding cap mouth diameter, described shared cap mouth communicates with air, share cap mouth by arranging, casting liquid in feeding cap mouth also can play the effect of product ontology being carried out to feeding, further makes constant product quality, has improved the casting accuracy of product.
As preferably, also comprise and be arranged on the cap oral pore of being convenient to feeding cap mouth following process on feeding cap mouth, the degree of depth of described cap oral pore equals the length of feeding cap mouth, the use of feeding cap mouth is, in exhaust, product is carried out to feeding, there is the character of expanding with heat and contract with cold in casting liquid, therefore, need to arrange after feeding cap mouth prevents from casting liquid cooling but and have defect on product, owing to being provided with the coefficient of thermal expansion and contraction of multiple feeding cap mouths and metal little on product ontology, therefore, be positioned at less that the casting liquid of feeding cap mouth uses, by cap oral pore is set, reduce the volume of casting liquid in feeding cap mouth, avoid waste of material, reduce the casting cost of product.
As preferably, described shared cap mouth is provided with and makes shared cap mouth be convenient to the cap hole of following process, and the degree of depth in described cap hole equals to share the length of cap mouth, by cap hole is set, reduce the volume of casting liquid in shared cap mouth, avoided waste of material, reduced the manufacturing cost of product.
As preferably, described feeding cap mouth and shared cap mouth upper surface are positioned at isoplanar, by making feeding cap mouth end face and shared cap mouth upper surface be positioned at same plane, mould is convenient to arrange and feeding cap mouth is equated with the pressure of casting liquid in shared cap mouth, has improved the casting accuracy of product.
As preferably, described cap oral pore be shaped as the truncated cone-shaped that upper end diameter is greater than lower end diameter, be set to truncated cone-shaped by the shape of cap oral pore, improved the pressure that is positioned at feeding cap mouth casting liquid, further improve the feeding effect of feeding cap mouth, improved the precision of product.
As preferably, described cap hole be shaped as the truncated cone-shaped that upper end diameter is greater than lower end diameter, be set to truncated cone-shaped by the shape in cap hole, improved and be positioned at the pressure that shares cap mouth and cast liquid, improved the precision of product.
The novel dead head structure of a kind of valve body provided by the invention, tool has the following advantages: by feeding cap mouth is all set on two products, improve the utilization rate of material in ensureing interiors of products quality; By feeding cap mouth is communicated with air, rising head directly contacts with air, utilizes atmospheric pressure to accomplish enough feeding effects, and cap mouth structure increases 50%-70% with respect to blind riser feeding effect in prior art, product dense structure property is improved largely, and air-tightness qualification rate is greater than 99.5%; In addition, by make the radius of the curving of castings be not less than feeding cap port radius 1/5 and be not more than 15 millimeters, the curving of castings can fully meet the consecutive solidification principle of aluminium alloy casting, ensures product quality; By charging aperture being arranged on to the middle part of ingate, realize once-through operation and can cast two products, in ensureing product quality, production efficiency increases substantially.
Brief description of the drawings
Accompanying drawing 1 is the product schematic diagram of the novel dead head structure die sinking rear mold inner chamber of a kind of valve body of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the novel dead head structure of a kind of valve body of the present invention is described further.Because casting technique is to utilize the inner chamber of mould to cast out qualified product, in order to make dies cavity structure clear, in accompanying drawing, only draw the shape of casting rear mold inner chamber product, as shown in Figure 1, a kind of novel dead head structure of valve body, comprise product ontology 1 and the inner core 2 that is used to form product ontology 1 inner chamber, described product ontology 1 has two, between two product ontologies 1, be provided with for making to cast the ingate 3 that liquid passes through, also comprise for the charging aperture 4 to the interior supply casting of ingate 3 liquid, described charging aperture 4 is arranged on the centre position of ingate 3 length directions, on two product ontologies 1, be equipped with feeding cap mouth 5, described feeding cap mouth 5 communicates with air, between described feeding cap mouth 5 and product, be also provided with the curving of castings, the radius of the described curving of castings be not less than feeding cap mouth 5 radiuses 1/5 and be not more than 15 millimeters.
In order to have improved the precision of product, the feeding cap mouth 5 on each product should at least arrange two, and on each product, feeding cap mouth 5 should be distributed on product ontology 1, so that feeding cap mouth 5 has good feeding effect.
Optionally, between two product ontologies 1, be also provided with and share cap mouth 6, the diameter of described shared cap mouth 6 is 1.3 times to 1.5 times of feeding cap mouth 5 diameters, described shared cap mouth 6 communicates with air, because shared cap mouth 6 is the shared cap mouth of two products, therefore, should make to share the diameter that cap mouth 6 diameters are greater than feeding cap mouth 5, while specifically setting, the curving of castings also should be set between feeding cap mouth 5 and product, and the selection mode of described curving of castings diameter is identical with the selection mode of the curving of castings on feeding cap mouth 5.
Optionally, also comprise and be arranged on the cap oral pore 7 of being convenient to feeding cap mouth 5 following process on feeding cap mouth 5, the degree of depth of described cap oral pore 7 equals the length of feeding cap mouth 5, described cap oral pore 7 be shaped as the truncated cone-shaped that upper end diameter is greater than lower end diameter, the diameter of described cap oral pore 7 should carry out choose reasonable according to the coefficient of thermal expansion and contraction of casting liquid, and the casting liquid that diameter of cap oral pore 7 should make to be positioned at feeding cap mouth 5 can meet the quality requirement of product.
Optionally, described shared cap mouth 6 is provided with and makes to share cap mouth 6 and be convenient to the cap hole 8 of following process, and the degree of depth in described cap hole 8 equals to share the length of cap mouth 6, described cap hole 8 be shaped as the truncated cone-shaped that upper end diameter is greater than lower end diameter.
Optionally, described feeding cap mouth 5 is positioned at isoplanar with shared cap mouth 6 upper surfaces, and feeding cap mouth 5 is contour with shared cap mouth 6 upper surfaces.
Technique scheme in use, casting liquid enters ingate 3 by charging aperture 4, after entering ingate 3, casting liquid enters the product main body that is positioned at ingate 3 two ends, because product main body communicates with feeding cap mouth 5, shared cap mouth 6, therefore, casting liquid can enter in feeding cap mouth 5 and shared cap mouth 6 entering after product ontology 1, after the casting liquid in feeding cap mouth 5 reaches suitable height, stops injecting casting liquid; Then, cooling die, mould is in cooling procedure, and because casting liquid has the character of expanding with heat and contract with cold, in mold cools down process, the casting liquid that is positioned at feeding cap mouth 5 and shared cap mouth 6 can add on product ontology 1, thereby is cast as qualified product; By feeding cap mouth 5 is all set on two products, in ensureing interiors of products quality, improve the utilization rate of material; By feeding cap mouth 5 is communicated with air, rising head directly contacts with air, utilizes atmospheric pressure to accomplish enough feeding effects, waters and emits structure to increase 50%-70% with respect to blind riser feeding effect in prior art, and products air tightness qualification rate is greater than 99.5%; In addition, by make the radius of the curving of castings be not less than feeding cap mouth 5 radiuses 1/5 and be not more than 15 millimeters, the curving of castings can fully meet the consecutive solidification principle of aluminium alloy casting, ensures product quality; By charging aperture 4 being arranged on to the middle part of ingate 3, realize once-through operation and can cast two products, in ensureing product quality, production efficiency increases substantially.
These are only the preferred embodiment of the present invention, be intended to embody outstanding technique effect of the present invention and advantage, is not the restriction to technical scheme of the present invention.Those skilled in the art will appreciate that all amendments of making based on the technology of the present invention content, variation or substitute technology feature, all should be covered by the technology category of claims opinion of the present invention.
Claims (7)
1. the novel dead head structure of a valve body, comprise product ontology (1) and be used to form the inner core (2) of product ontology (1) inner chamber, it is characterized in that: described product ontology (1) has two, between two product ontologies (1), be provided with for making to cast the ingate (3) that liquid passes through, also comprise the charging aperture (4) for supply with casting liquid in ingate (3), described charging aperture (4) is arranged on the centre position of ingate (3) length direction, on two product ontologies (1), be equipped with feeding cap mouth (5), described feeding cap mouth (5) communicates with air, between described feeding cap mouth (5) and product, be also provided with the curving of castings, the radius of the described curving of castings be not less than feeding cap mouth (5) radius 1/5 and be not more than 15 millimeters.
2. the novel dead head structure of a kind of valve body according to claim 1, it is characterized in that: between two product ontologies (1), be also provided with and share cap mouth (6), the diameter of described shared cap mouth (6) is 1.3 times to 1.5 times of feeding cap mouth (5) diameter, and described shared cap mouth (6) communicates with air.
3. the novel dead head structure of a kind of valve body according to claim 1, it is characterized in that: also comprise and be arranged on the cap oral pore (7) of being convenient to feeding cap mouth (5) following process on feeding cap mouth (5), the degree of depth of described cap oral pore (7) equals the length of feeding cap mouth (5).
4. the novel dead head structure of a kind of valve body according to claim 2, it is characterized in that: described shared cap mouth (6) is provided with and makes shared cap mouth (6) be convenient to the cap hole (8) of following process, and the degree of depth in described cap hole (8) equals to share the length of cap mouth (6).
5. the novel dead head structure of a kind of valve body according to claim 1, is characterized in that: described feeding cap mouth (5) is positioned at isoplanar with shared cap mouth (6) upper surface.
6. the novel dead head structure of a kind of valve body according to claim 3, is characterized in that: described cap oral pore (7) be shaped as the truncated cone-shaped that upper end diameter is greater than lower end diameter.
7. the novel dead head structure of a kind of valve body according to claim 4, is characterized in that: described cap hole (8) be shaped as the truncated cone-shaped that upper end diameter is greater than lower end diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376802.2A CN104128566B (en) | 2014-08-01 | 2014-08-01 | A kind of dead head structure of valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376802.2A CN104128566B (en) | 2014-08-01 | 2014-08-01 | A kind of dead head structure of valve body |
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| CN104128566A true CN104128566A (en) | 2014-11-05 |
| CN104128566B CN104128566B (en) | 2016-08-24 |
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| CN201410376802.2A Expired - Fee Related CN104128566B (en) | 2014-08-01 | 2014-08-01 | A kind of dead head structure of valve body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815963A (en) * | 2015-04-24 | 2015-08-05 | 南通华东油压科技有限公司 | Low-strength heating riser for 4WEH16 valve molding line |
| CN108176818A (en) * | 2017-11-20 | 2018-06-19 | 上海圣德曼铸造海安有限公司 | The sand mould structure of automobile driving system differential casing |
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| FR2596487A1 (en) * | 1986-03-27 | 1987-10-02 | Sereg Soc | Method for producing a pipework fitting component, and pipework fitting component obtained by implementing the said method |
| JP2007125615A (en) * | 2005-10-04 | 2007-05-24 | Mitsubishi Materials Corp | Mold for precisely casting high melting point metal hollow drum-shaped casting and precise casting method for high melting point metal hollow drum-shaped casting using the mold |
| CN203281810U (en) * | 2013-06-08 | 2013-11-13 | 温州锐特铸造有限公司 | Highly anti-corrosion nickel base alloy large valve body pouring device |
| CN103418750A (en) * | 2013-07-22 | 2013-12-04 | 洛阳市兴荣工业有限公司 | Spherical valve main body casting technology |
| CN203330348U (en) * | 2013-05-17 | 2013-12-11 | 衡阳风顺车桥有限公司 | Insulated feeder without sand adhesion on root for steel casting |
| CN103611888A (en) * | 2013-11-14 | 2014-03-05 | 宁波华平金属制品有限公司 | Precoated sand casting mold for manufacturing four copper valve body casting pieces by one mold |
| CN103624218A (en) * | 2013-10-25 | 2014-03-12 | 宝鸡石油机械有限责任公司 | Casting method of hollow crankshaft of slurry pump |
| CN203944800U (en) * | 2014-08-01 | 2014-11-19 | 浙江振义汽车部件有限公司 | A kind of novel dead head structure of valve body |
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2014
- 2014-08-01 CN CN201410376802.2A patent/CN104128566B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2596487A1 (en) * | 1986-03-27 | 1987-10-02 | Sereg Soc | Method for producing a pipework fitting component, and pipework fitting component obtained by implementing the said method |
| JP2007125615A (en) * | 2005-10-04 | 2007-05-24 | Mitsubishi Materials Corp | Mold for precisely casting high melting point metal hollow drum-shaped casting and precise casting method for high melting point metal hollow drum-shaped casting using the mold |
| CN203330348U (en) * | 2013-05-17 | 2013-12-11 | 衡阳风顺车桥有限公司 | Insulated feeder without sand adhesion on root for steel casting |
| CN203281810U (en) * | 2013-06-08 | 2013-11-13 | 温州锐特铸造有限公司 | Highly anti-corrosion nickel base alloy large valve body pouring device |
| CN103418750A (en) * | 2013-07-22 | 2013-12-04 | 洛阳市兴荣工业有限公司 | Spherical valve main body casting technology |
| CN103624218A (en) * | 2013-10-25 | 2014-03-12 | 宝鸡石油机械有限责任公司 | Casting method of hollow crankshaft of slurry pump |
| CN103611888A (en) * | 2013-11-14 | 2014-03-05 | 宁波华平金属制品有限公司 | Precoated sand casting mold for manufacturing four copper valve body casting pieces by one mold |
| CN203944800U (en) * | 2014-08-01 | 2014-11-19 | 浙江振义汽车部件有限公司 | A kind of novel dead head structure of valve body |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104815963A (en) * | 2015-04-24 | 2015-08-05 | 南通华东油压科技有限公司 | Low-strength heating riser for 4WEH16 valve molding line |
| CN108176818A (en) * | 2017-11-20 | 2018-06-19 | 上海圣德曼铸造海安有限公司 | The sand mould structure of automobile driving system differential casing |
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| Publication number | Publication date |
|---|---|
| CN104128566B (en) | 2016-08-24 |
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