CN202291364U - Sand box for negative pressure casting - Google Patents
Sand box for negative pressure casting Download PDFInfo
- Publication number
- CN202291364U CN202291364U CN2011203648408U CN201120364840U CN202291364U CN 202291364 U CN202291364 U CN 202291364U CN 2011203648408 U CN2011203648408 U CN 2011203648408U CN 201120364840 U CN201120364840 U CN 201120364840U CN 202291364 U CN202291364 U CN 202291364U
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- China
- Prior art keywords
- sand box
- negative pressure
- metal hose
- pressure casting
- sandbox
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a sand box for negative pressure casting. The sand box for negative pressure casting comprises a sand box main body, wherein an extraction pipe is arranged at the upper end of the sand box main body; a bracket is fixed at the top of the sand box main body; the extraction pipe is fixed on the bracket; and a metal hose is mounted on the extraction pipe within the sand box main body. Through the adoption of the sand box for negative pressure casting disclosed by the utility model, a stainless steel mesh is replaced by the metal hose and the air is sucked through the gap of the metal hose; because the gap is small and the metal hose has a better effect than the stainless steel mesh and is very hard to be burned out, the safety of a vacuum pump in operation is largely improved, the service life of the sand box is largely prolonged and the yield of the casts is largely increased; meanwhile, the sand box adopting the structure is very convenient in the manufacturing and using process without the need of the partition board and the stainless steel mesh, so that the production cost of the cast is also reduced.
Description
Technical field
The utility model relates to the die casting field, particularly relates to a kind of sandbox that is used for negative pressure casting.
Background technology
In order to improve surface quality of continuous castings and casting accuracy, now a lot of products all adopt the technology of negative pressure casting to cast.Owing in casting process, will vacuumize, the employed sandbox of present most manufacturer all adopts spacer structure, and sandbox is divided into double-layer structure up and down with dividing plate; Sand is stacked on the upper strata, and lower floor is a bleed-off passage, and several holes has evenly distributed on the dividing plate; In order to prevent that sand from sucking from the hole; Influence the safe handling of vavuum pump, one deck stainless steel mesh cloth is arranged on dividing plate, be fixed on the dividing plate with press strip all around.There is following shortcoming in actual use in the sandbox of this structure: 1, because the not anti-burning of stainless steel mesh cloth; Scalded into big hole easily,, will be caused collapse phenomenon like untimely discovery; Cause the generation of substandard products and influence the safe operation of vavuum pump, so must often change stainless steel mesh cloth; 2, the sandbox of this structure is more loaded down with trivial details in manufacturing and use, when changing screen cloth, will push down with press strip all around, will guarantee that simultaneously screen cloth itself is not by scratch; 3, higher to the quality requirement of stainless steel mesh cloth itself.
The utility model content
The technical problem that the utility model mainly solves provides a kind of novel sandbox that is used for negative pressure casting, can guarantee that sand can not get in the vavuum pump, and cancel the practicality of sandbox internal partition, has reduced manufacturing cost.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of sandbox that is used for negative pressure casting is provided; Comprise the sandbox body, said sandbox body upper end is provided with exhaust tube, and the sandbox bodies top is fixed with support; Said exhaust tube is fixed on the said support, on the exhaust tube of said sandbox body interior metal hose is installed.
In preferred embodiment of the utility model, said metal hose and exhaust tube welding.
In preferred embodiment of the utility model, be provided with seal between said exhaust tube and the metal hose.
The beneficial effect of the utility model is: the sandbox that the utility model is used for negative pressure casting adopts metal hose to replace stainless steel mesh cloth, and it is air-breathing to utilize the space of metal hose to realize, because its space is little; Its effect is better than stainless steel mesh cloth, because metal hose is difficult to burn out, has improved the security of vavuum pump operation and the service life of sandbox so greatly; And finished casting rate; Simultaneously, adopt the sandbox of this structure, very convenient in manufacturing and use; Need not dividing plate and stainless steel mesh cloth, reduced the production cost of foundry goods.
Description of drawings
Fig. 1 is the perspective view that the utility model is used for sandbox one preferred embodiment of negative pressure casting;
The mark of each parts is following in the accompanying drawing: 1, sandbox body, 2, exhaust tube, 3, metal hose, 4 seals, 5, support.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection domain of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1, the utility model embodiment comprises:
A kind of sandbox that is used for negative pressure casting; Comprise sandbox body 1, said sandbox body 1 upper end is provided with exhaust tube 2, and sandbox body 1 top is fixed with support 5; Said exhaust tube 2 is fixed on the said support 5, on the exhaust tube 2 of said sandbox body 1 inside metal hose 3 is installed.
Wherein, said metal hose 3 and exhaust tube 2 welding.
Be provided with seal 4 between said exhaust tube 2 and the metal hose 3, prevent exhaust tube 2 gas leakage, improved the processing characteristics of sandbox.
The sandbox that the utility model is used for negative pressure casting has following advantage:
1, adopt metal hose 3 to replace stainless steel mesh cloth, it is air-breathing to utilize the space of metal hose 3 to realize, because its space is little, its effect is better than stainless steel mesh cloth;
2, because metal hose 3 is difficult to burn out, improved the security of vavuum pump operation and the service life of sandbox so greatly, and finished casting rate;
3, be provided with seal 4 between exhaust tube 2 and the metal hose 3, prevent exhaust tube 2 gas leakage, improved the processing characteristics of sandbox;
4, simultaneously, adopt the sandbox of this structure, in manufacturing and use, easily, need not dividing plate and stainless steel mesh cloth, reduced the production cost of foundry goods.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (3)
1. sandbox that is used for negative pressure casting; It is characterized in that: comprise sandbox body (1); Said sandbox body (1) upper end is provided with exhaust tube (2); Sandbox body (1) top is fixed with support (5), and said exhaust tube (2) is fixed on the said support (5), on the exhaust tube (2) of said sandbox body (1) inside metal hose (3) is installed.
2. the sandbox that is used for negative pressure casting according to claim 1 is characterized in that: said metal hose (3) and exhaust tube (2) welding.
3. the sandbox that is used for negative pressure casting according to claim 1 is characterized in that: be provided with seal (4) between said exhaust tube (2) and the metal hose (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203648408U CN202291364U (en) | 2011-09-27 | 2011-09-27 | Sand box for negative pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203648408U CN202291364U (en) | 2011-09-27 | 2011-09-27 | Sand box for negative pressure casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202291364U true CN202291364U (en) | 2012-07-04 |
Family
ID=46360344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203648408U Expired - Fee Related CN202291364U (en) | 2011-09-27 | 2011-09-27 | Sand box for negative pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202291364U (en) |
-
2011
- 2011-09-27 CN CN2011203648408U patent/CN202291364U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20120927 |