CN101786151A - Low pressure casting die of silencer body - Google Patents
Low pressure casting die of silencer body Download PDFInfo
- Publication number
- CN101786151A CN101786151A CN201010106663A CN201010106663A CN101786151A CN 101786151 A CN101786151 A CN 101786151A CN 201010106663 A CN201010106663 A CN 201010106663A CN 201010106663 A CN201010106663 A CN 201010106663A CN 101786151 A CN101786151 A CN 101786151A
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- die
- side die
- low pressure
- pressure casting
- silencer body
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Abstract
The invention discloses a low pressure casting die of a silencer body, comprising a square side die formed by a left side die, a right side die, a front side die and a rear side die, and an upper die and a lower die, wherein the upper die is provided with a product ejection mechanism; and the tops of the front side die, the rear side die, the left side die and the right side die are respectively provided with exhaust gaps. The product prepared by the casting die has high dimensional precision, stable quality, excellent appearance quality and high process yield and can replace the imported products. In addition, the exhaust gaps formed by combined vanes are arranged on the front side die, the rear side die, the left side die and the right side die, which can effectively solve the exhaust problems of the air in the cavity and the air emitted by the sand cores during production process, thus putting an end to the defect of shortage of pores and gates.
Description
Technical field
The present invention relates to mould manufacturing field, particularly a kind of low pressure casting die of silencer body.
Background technology
What silencer body as shown in Figure 1 adopted at present is metal mold (containing core) gravitational casting, its product of producing exists that dimensional accuracy is relatively poor, inherent quality is unstable (qualification rate is very low under pressure integrity test), low, the defect of high cost of product yield, and its presentation quality is also very poor simultaneously.
Low pressure casting is to make liquid metals filling die cavity under pressure, to form a kind of method of foundry goods, has the following advantages:
1. to fill type more steady for liquid metals; 2. casting forming is good, helps forming the foundry goods of clear-cut, any surface finish, and is more favourable for the shaping of large thin wall casting; 3. foundry goods dense structure, the mechanical performance height; 4. improved the technology recovery rate of molten metal, do not needed rising head generally speaking, the recovery rate of molten metal is improved greatly, recovery rate generally can reach more than 80%.In addition, working condition is good; Equipment is simple, easily realizes mechanization and automation, also is the outstanding advantage of low pressure casting.
But, in the process of its low pressure casting die of research, need solve the problems such as discharge that gas and core are got angry in the die cavity in process of production, to stop the defective of pore and misrun in view of the concrete structure of silencer body.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of low pressure casting die of silencer body, not only can solve the existing problem of existing gravity casting die, and overcome the defective of pore and misrun.
The objective of the invention is to be achieved through the following technical solutions: this low pressure casting die of silencer body, comprise cubic side form and the upper die and lower die formed by left side mould, right side mould, preceding side form and rear side mould, described patrix is provided with the product ejecting mechanism, bed die is provided with cast gate, and the top of described preceding side form, back side form, left side mould and right side mould is respectively arranged with the blade combining structure that is used for exhaust.
Further, described blade combining structure is formed with the same direction overlap joint in its long edge by a plurality of blades, and the junction of adjacent blades offers exhaust gap;
Further, the exhaust gap on described same die body size is consistent and be parallel to each other;
Further, the width of described exhaust gap is 0.05～0.15mm;
Further, the width of described exhaust gap is 0.1mm;
Further, the end diameter of described cast gate is 95mm, highly is 70mm, and draw taper is 5 °.
The invention has the beneficial effects as follows:
The present invention adopts metal mold (containing core) low-pressure casting process, and finished size precision height, the steady quality that makes, presentation quality is outstanding, product yield is high, can the substituting import one product; In addition, offer the exhaust gap of being made up of combined blade on the side form of front, rear, left and right, this kind exhaust combining structure can solve the discharge problem that gas and core are got angry in the die cavity in process of production effectively, has stopped the defective of pore and misrun.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can obtain instruction from the practice of the present invention to investigating hereinafter.Target of the present invention and other advantages can realize and obtain by following specification and claims.
Description of drawings
In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing, wherein:
Fig. 1 is the structural representation of silencer body;
Fig. 2 is a mould structure schematic diagram of the present invention (having removed patrix among the figure);
Fig. 3 be Fig. 2 along A to schematic diagram;
Fig. 4 is a upper mould front view of the present invention;
Fig. 5 is the structural representation of blade combining structure of the present invention.
Fig. 6 is the A place enlarged drawing of Fig. 5.
The specific embodiment
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment only for the present invention is described, rather than in order to limit protection scope of the present invention.
As Fig. 2, Fig. 3 and shown in Figure 4, low pressure casting die of silencer body of the present invention, comprise the cubic side form formed by left side mould 1, right side mould 2, preceding side form 3 and back side form 4 and patrix 5, counterdie 6, patrix 5 is provided with the product ejecting mechanism, bed die is provided with cast gate 7, and in the present embodiment, the end diameter of cast gate is 95mm, highly be 70mm, draw taper is 5 °.
As Fig. 5, shown in Figure 6, the top of preceding side form of the present invention, back side form, left side mould and right side mould is respectively arranged with the blade combining structure 8 that is used for exhaust.Blade combining structure 8 is formed with the same direction in its long edge overlap joint by a plurality of blades 9, and the junction of adjacent blades 9 offers exhaust gap, and is in the exhaust gap size unanimity on the same die body and is parallel to each other.In the present embodiment, the width d of exhaust gap is 0.1mm, and this width is repeatedly tested the preferred values that obtains for basis, and size can either satisfy the exhaust needs, and the while can not cause die cavity material cold flow again or split.
Adopt the advantage of exhaust combining structure of the present invention to be: 1 compares with other processing methods (for example line cutting), is convenient to be processed into required exhaust gap width (0.1mm); 2 is very narrow because of exhaust gap, is difficult for stopping up; 3. being convenient to pull down cleaning after stopping up safeguards.By adopting this exhaust combining structure, can solve the discharge problem that gas and core are got angry in the die cavity in process of production effectively, stopped the defective of pore and misrun.
Mould assembling action of the present invention: bed die maintains static, the mould all around that closes successively earlier, and mould again closes.
Die sinking action of the present invention: open mould all around successively earlier, open patrix again, product rises to certain height with patrix, and the ejecting mechanism of patrix just pushes up product from mould.
Finished size precision height, the steady quality that the present invention makes, presentation quality is outstanding, product yield is high, can the substituting import one product.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the aim and the scope of the technical program, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (6)
1. low pressure casting die of silencer body, comprise cubic side form and the upper die and lower die formed by left side mould, right side mould, preceding side form and rear side mould, described patrix is provided with the product ejecting mechanism, it is characterized in that: bed die is provided with cast gate, and the top of described preceding side form, back side form, left side mould and right side mould is respectively arranged with the blade combining structure that is used for exhaust.
2. low pressure casting die of silencer body according to claim 1 is characterized in that: described blade combining structure is formed with the same direction overlap joint in its long edge by a plurality of blades, and the junction of adjacent blades offers exhaust gap.
3. low pressure casting die of silencer body according to claim 2 is characterized in that: exhaust gap on described same die body size is consistent and be parallel to each other.
4. low pressure casting die of silencer body according to claim 3 is characterized in that: the width of described exhaust gap is 0.05～0.15mm.
5. low pressure casting die of silencer body according to claim 4 is characterized in that: the width of described exhaust gap is 0.1mm.
6. low pressure casting die of silencer body according to claim 1 is characterized in that: the end diameter of described cast gate is 95mm, highly is 70mm, and draw taper is 5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101066633A CN101786151B (en) | 2010-02-05 | 2010-02-05 | Low pressure casting die of silencer body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101066633A CN101786151B (en) | 2010-02-05 | 2010-02-05 | Low pressure casting die of silencer body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101786151A true CN101786151A (en) | 2010-07-28 |
| CN101786151B CN101786151B (en) | 2012-07-11 |
Family
ID=42529606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101066633A Expired - Fee Related CN101786151B (en) | 2010-02-05 | 2010-02-05 | Low pressure casting die of silencer body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101786151B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052584A (en) * | 2019-05-22 | 2019-07-26 | 西南交通大学 | A kind of heat dissipation board fabrication method |
| CN112872327A (en) * | 2021-01-12 | 2021-06-01 | 重庆擎一模具制造有限公司 | Low-pressure casting die |
-
2010
- 2010-02-05 CN CN2010101066633A patent/CN101786151B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052584A (en) * | 2019-05-22 | 2019-07-26 | 西南交通大学 | A kind of heat dissipation board fabrication method |
| CN112872327A (en) * | 2021-01-12 | 2021-06-01 | 重庆擎一模具制造有限公司 | Low-pressure casting die |
| CN112872327B (en) * | 2021-01-12 | 2022-03-01 | 重庆擎一模具制造有限公司 | Low-pressure casting die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101786151B (en) | 2012-07-11 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20220205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |