CN202639245U - High efficient vacuum casting method dedicated sandbox - Google Patents
High efficient vacuum casting method dedicated sandbox Download PDFInfo
- Publication number
- CN202639245U CN202639245U CN 201120437097 CN201120437097U CN202639245U CN 202639245 U CN202639245 U CN 202639245U CN 201120437097 CN201120437097 CN 201120437097 CN 201120437097 U CN201120437097 U CN 201120437097U CN 202639245 U CN202639245 U CN 202639245U
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- Prior art keywords
- sandbox
- wall
- sand box
- handle
- crossbeam
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Abstract
The utility model discloses a high efficient vacuum casting method dedicated sandbox, comprises a sandbox inner wall and a sand box outer wall. A negative pressure chamber is formed between the two walls. The sandbox inner wall is provided with an air pumping hole and a filter sieve arranged on the position of the pumping hole. A crossbeam is arranged on the upper part inside the sand box, and meshes are arranged on the crossbeam which can be used for air pumping. According to the utility model, the crossbeam used for pumping air from the sandbox is arranged in the sandbox, solving the problem of nonuniform negative pressure present in sandbox usage. The sandbox of the utility model is simple in structure, and convenient in manufacture and use.
Description
Technical field
The utility model relates to a kind of Casting Equipment, specifically a kind of Special sand box for high-efficiency V method casting.
Background technology
The casting of V method is a kind of casting method of environmental protection, and development is rapid at home at present, and technique is increasingly mature.The casting of V method is the abbreviation of vacuum sealed molding or vacuum moulding casting technique, its principle is to utilize plastic sheeting to cover modeling and seal sandbox, rely on the air in the vavuum pump extraction type, rely on inside and outside pressure official post sand grains consolidation, form a kind of formative method of required die cavity.Using the benefit of V method casting is that molding sand does not use binding agent, and knockout is easy, and it is minimum that Foundry quartz sand reduces to, and sand grains can be reused mostly, saves cost.
Utilizing at present V method casting and use sandbox, generally is to bleed around sandbox, causes the sandbox internal negative pressure inhomogeneous, larger the closer to the inner wall of sand box negative pressure, thereby causes the foundry goods global density inhomogeneous, affects casting quality.
Summary of the invention
For the problem that present technology exists, the utility model provides a kind of crossbeam that arranges in sandbox, is used for the Special sand box for high-efficiency V method casting of bleeding to sandbox.
The technical solution of the utility model is: a kind of Special sand box for high-efficiency V method casting, comprise casing, described casing comprises inner wall of sand box and sandbox outer wall, consist of negative pressure chamber between the two-layer sandbox wall, be provided with a plurality of aspirating holes on the described inner wall of sand box and cover the filter screen that filter sand is used on the aspirating hole, the sandbox inner and upper is provided with crossbeam, is provided with the mesh of bleeding on the crossbeam; Described filter screen is pressed on the described inner wall of sand box by the screen cloth pressing plate, the left and right sides of described sandbox outer wall is provided with the check valve of outwards bleeding for vavuum pump, described sandbox outer wall the right and left also respectively arranges a mould turnover and hangs handle, described sandbox outer wall and described mould turnover hang and are provided with dowel hole between handle, both sides respectively are provided with sandbox and hang handle before and after the described sandbox outer wall, also are provided with the horizontal molding seat board with buckle on the sandbox outer wall.
Further be: the mesh of described filter screen is less than sand grains, and the diameter of aspirating hole is greater than sand grains.
Further be: described mould turnover hangs handle and sandbox hangs the middle part diameter of handle less than end diameter.
Further be: the every side in the described sandbox outer wall left and right sides is provided with at least one described check valve, and the both sides, front and back respectively are provided with at least one sandbox and hang handle, also is provided with at least two on the sandbox outer wall with the horizontal molding seat board of buckle.
The beneficial effects of the utility model are: the utility model arranges crossbeam in sandbox, be used for bleeding to sandbox, and the problem that the negative pressure that has occurred when having solved present use sandbox is inhomogeneous, and the utility model is simple in structure, is convenient to make, and easy to use.
Description of drawings
Fig. 1 is the half sectional view of the utility model Special sand box for high-efficiency V method casting front view;
Fig. 2 is the partial sectional view of the utility model Special sand box for high-efficiency V method casting top view;
Among the figure: 1-sandbox outer wall, the 2-inner wall of sand box, the 3-filter screen, 4-negative pressure chamber, 5-screen cloth pressing plate, the 6-aspirating hole, the 7-crossbeam, the 8-mould turnover hangs handle, the 9-dowel hole, the 10-check valve, the horizontal molding seat board of 11-, the 12-sandbox hangs handle.
The specific embodiment
In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment, and this embodiment only is used for explaining the utility model, does not consist of the restriction to the utility model protection domain.
As shown in Figure 1, 2, the utility model provides a kind of Special sand box for high-efficiency V method casting, comprise inner wall of sand box 2 and sandbox outer wall 1, consist of negative pressure chamber 4 between the two-layer sandbox wall, be provided with aspirating hole 6 on the inner wall of sand box 2 and be installed in the filter screen 3 that aspirating hole place filter sand is used, described filter screen 3 covers on the described aspirating hole 6, and the sandbox inner and upper is provided with crossbeam 7, be provided with mesh on the crossbeam 7, can be used for bleeding; Filter screen 3 usefulness screen cloth pressing plates 5 are pressed on the inner wall of sand box 2, the left and right sides of sandbox outer wall 1 is respectively arranged with the check valve 10 of outwards bleeding for vavuum pump, preferably, every side is provided with two check valves 10, sandbox outer wall 1 the right and left respectively arranges a mould turnover and hangs handle 8, sandbox outer wall 1 and mould turnover hang 8 of handles and are provided with dowel hole 9, hang handle 8 by dowel hole 9 connection sandbox outer walls 1 and mould turnover, both sides, sandbox outer wall 1 front and back respectively are provided with sandbox and hang handle 12, preferably, every side is provided with two sandboxes and hangs handle 12, make things convenient for sandbox to move, also be provided with the horizontal molding seat board 11 with buckle on the sandbox outer wall 1, preferably, be equipped with two horizontal molding seat boards 11 in both sides, sandbox outer wall 1 front and back, play the effect of supporting sandbox integral body.
The mesh of filter screen 3 is less than sand grains, and the diameter of aspirating hole 6 is greater than sand grains.
Mould turnover hangs handle 8 and sandbox hangs the middle part diameter of handle 12 less than end diameter.
The utility model arranges crossbeam 7 in sandbox, is used for bleeding to sandbox, and the problem that the negative pressure that has occurred when having solved present use sandbox is inhomogeneous, and the utility model is simple in structure, is convenient to make, and easy to use.
Claims (4)
1. Special sand box for high-efficiency V method casting, comprise casing, it is characterized in that: described casing comprises inner wall of sand box (2) and sandbox outer wall (1), consist of negative pressure chamber (4) between the two-layer sandbox wall, be provided with a plurality of aspirating holes (6) on the described inner wall of sand box (2) and cover the filter screen that filter sand is used on the aspirating hole (3), the sandbox inner and upper is provided with crossbeam (7), the mesh that is provided with to bleed on the crossbeam (7); Described filter screen (3) is pressed on the described inner wall of sand box (2) by screen cloth pressing plate (5), the left and right sides of described sandbox outer wall (1) is provided with the check valve (10) of outwards bleeding for vavuum pump, described sandbox outer wall (1) the right and left also respectively arranges a mould turnover and hangs handle (8), described sandbox outer wall (1) and described mould turnover hang and are provided with dowel hole (9) between handle (8), both sides respectively are provided with sandbox and hang handle (12) before and after the described sandbox outer wall (1), also are provided with the horizontal molding seat board (11) with buckle on the sandbox outer wall (1).
2. Special sand box for high-efficiency V method casting as claimed in claim 1, it is characterized in that: the mesh of described filter screen (3) is less than sand grains, and the diameter of aspirating hole (6) is greater than sand grains.
3. Special sand box for high-efficiency V method casting as claimed in claim 1, it is characterized in that: described mould turnover hangs handle (8) and sandbox hangs the middle part diameter of handle (12) less than end diameter.
4. Special sand box for high-efficiency V method casting as claimed in claim 1, it is characterized in that: the every side in described sandbox outer wall (1) left and right sides is provided with at least one described check valve (10), the both sides, front and back respectively are provided with at least one sandbox and hang handle (12), also are provided with at least two on the sandbox outer wall (1) with the horizontal molding seat board (11) of buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120437097 CN202639245U (en) | 2011-11-08 | 2011-11-08 | High efficient vacuum casting method dedicated sandbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120437097 CN202639245U (en) | 2011-11-08 | 2011-11-08 | High efficient vacuum casting method dedicated sandbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202639245U true CN202639245U (en) | 2013-01-02 |
Family
ID=47408423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120437097 Expired - Fee Related CN202639245U (en) | 2011-11-08 | 2011-11-08 | High efficient vacuum casting method dedicated sandbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202639245U (en) |
-
2011
- 2011-11-08 CN CN 201120437097 patent/CN202639245U/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: 20130102 Termination date: 20131108 |