CN208960936U - A kind of evaporative pattern sandbox with permeability cell pressure ring - Google Patents
A kind of evaporative pattern sandbox with permeability cell pressure ring Download PDFInfo
- Publication number
- CN208960936U CN208960936U CN201821372264.XU CN201821372264U CN208960936U CN 208960936 U CN208960936 U CN 208960936U CN 201821372264 U CN201821372264 U CN 201821372264U CN 208960936 U CN208960936 U CN 208960936U
- Authority
- CN
- China
- Prior art keywords
- permeability cell
- evaporative pattern
- pressure ring
- pattern sandbox
- 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.)
- Expired - Fee Related
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Abstract
A kind of evaporative pattern sandbox with permeability cell pressure ring of the utility model, belongs to lost foam casting processing equipment field；It proposes that one kind can be accelerated to stablize ventilative hole site, improves a kind of evaporative pattern sandbox with permeability cell pressure ring of casting accuracy；A kind of technical solution are as follows: evaporative pattern sandbox with permeability cell pressure ring, comprising: evaporative pattern sandbox, permeability cell and pressure ring；Molding sand and mold are loaded inside the evaporative pattern sandbox, the permeability cell is vertically arranged in the evaporative pattern sandbox between molding sand and mold, the permeability cell is the tubular structure of both ends open, the permeability cell lower part is provided with several transpiration holes, the permeability cell top is provided with retaining ring, movable set pressure ring on the permeability cell of the retaining ring upper end, the pressure ring are the ring assembling structure of symmetrical configuration and even density, and the utility model can be widely applied to lost foam casting field.
Description
Technical field
A kind of evaporative pattern sandbox with permeability cell pressure ring of the utility model, belongs to lost foam casting processing equipment field.
Background technique
Lost foam casting is that foam mould is combined using bindless dry sand, the mistake of the cavityless casting of vacuum pumping technology
Journey.At low cost due to this casting method small investment, casting dimensional accuracy is high, and any surface finish substantially reduces labor intensity and changes
Into operating environment, it can be achieved that foundry's clean manufacturing.
During lost foam casting, Bai Mo meets molten iron gasification, and the gas of generation penetrates into sand body under sandbox subnormal ambient,
Finally detached by vaccum-pumping equipment.But molten iron temperature is high, a large amount of gas that molten iron will be generated with the speed that is exceedingly fast after the gasification of white mould
Body can not penetrate into sand body in time, and gas expansion squeezes molding sand, cause molding sand mold to change, reduce casting accuracy.
To accelerate white mould gasification loss speed, air hole is added between molding sand mold.Air hole lighter weight, white
Still there is slight gas extrusion molding sand phenomenon in mould gasification, causes ventilative hole site that slight shift occurs, be unfavorable for type
Sand die table.
Utility model content
To overcome above-mentioned technical problem, it can accelerate to stablize ventilative hole site the utility model proposes one kind, improve casting
A kind of evaporative pattern sandbox with permeability cell pressure ring of precision.
To realize the above-mentioned technical purpose, the utility model proposes technical solution are as follows: a kind of disappearing with permeability cell pressure ring
Lose sand case, comprising: evaporative pattern sandbox, permeability cell and pressure ring；Molding sand and mold are loaded inside the evaporative pattern sandbox, it is described
Tracheae is vertically arranged in the evaporative pattern sandbox between molding sand and mold, and the permeability cell is the tubular structure of both ends open, institute
It states permeability cell lower part and is provided with several transpiration holes, the permeability cell top is provided with retaining ring, on the permeability cell of the retaining ring upper end
Movable set pressure ring, the pressure ring are the ring assembling structure of even density.
Evaporative pattern sandbox bottom is provided with vacuum-pumping tube.
It is provided with molding sand partition in evaporative pattern sandbox above the vacuum-pumping tube, is provided on the molding sand partition several
Through-hole is provided with strainer in the through-hole.
The filter for preventing molding sand from entering is provided on permeability cell in the transpiration hole.
The ventilative pipe diameter is 5~10cm.
The pressure ring internal diameter is 5.1~10.1cm.
The transpiration hole diameter is 1~1.5cm.
The utility model has the beneficial effect that
One, the utility model ring structure is symmetrical, uniform quality, can directly be set on permeability cell, using pressure ring quality,
Impact of the gas of white mould gasification to permeability cell is reduced, further stable type sand mo(u)ld type improves casting accuracy.
Two, retaining ring is provided on the utility model permeability cell, retaining ring has the function of accepting pressure ring, integrally weigh convenient for pressure ring
Amount is evenly distributed on permeability cell.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is vent pipe structure schematic diagram；
In figure: 1 is evaporative pattern sandbox, and 2 be permeability cell, and 3 be pressure ring, and 4 be transpiration hole, and 5 be retaining ring.
Specific embodiment
As shown in Fig. 1 to 2: a kind of evaporative pattern sandbox with permeability cell pressure ring, comprising: evaporative pattern sandbox 1, permeability cell 2
With pressure ring 3；Molding sand is loaded inside the evaporative pattern sandbox 1 and mold, the permeability cell 2 are vertically arranged between molding sand and mold
Evaporative pattern sandbox 1 in, the permeability cell 2 be both ends open tubular structure, 2 lower part of permeability cell is provided with several ease gas
Hole 4,2 top of permeability cell are provided with retaining ring 5, movable set pressure ring 3 on the permeability cell 2 of 5 upper end of retaining ring, the pressure ring
3 be the ring assembling structure of even density.
1 bottom of evaporative pattern sandbox is provided with vacuum-pumping tube.
It is provided with molding sand partition in evaporative pattern sandbox 1 above the vacuum-pumping tube, if being provided on the molding sand partition
Dry through-hole is provided with strainer in the through-hole.
The filter for preventing molding sand from entering is provided on permeability cell 2 in the transpiration hole 4.
2 diameter of permeability cell is 5~10cm.
3 internal diameter of pressure ring is 5.1~10.1cm.
4 diameter of transpiration hole is 1~1.5cm.
The utility model use process is as follows:
Sand is infused in 1 bottom of evaporative pattern sandbox of the utility model, and molding sand is under shock effect, after keeping close formation state,
By white mould place evaporative pattern sandbox 1 in, and if permeability cell 2 be vertically placed between extra dry white wine mould evaporative pattern sandbox 1 inside, disappearance
Molding sand is re-injected inside sand case 1, completely covers white mould up to molding sand, shakes evaporative pattern sandbox 1 again, molding sand will be white
After mould internal interstices through-hole is completely covered, 1 upper end of evaporative pattern sandbox is covered with plastic foil, and (plastic foil has mutually fits with permeability cell 2
The through-hole answered), the vacuum evacuation device of 1 bottom of evaporative pattern sandbox detaches gas, keeps 1 internal negative pressure environment of evaporative pattern sandbox, thoroughly
2 upper end movable set pressure ring 3 of tracheae, removes plastic foil, is poured.
Claims (7)
1. a kind of evaporative pattern sandbox with permeability cell pressure ring, it is characterised in that: include: evaporative pattern sandbox (1), permeability cell (2)
With pressure ring (3)；Molding sand is loaded inside the evaporative pattern sandbox (1) and mold, the permeability cell (2) are vertically arranged at molding sand and mould
In evaporative pattern sandbox (1) between tool, the permeability cell (2) is the tubular structure of both ends open, and permeability cell (2) lower part is set
It is equipped with several transpiration holes (4), permeability cell (2) top is provided with retaining ring (5), on the permeability cell (2) of retaining ring (5) upper end
Movable set pressure ring (3), the pressure ring (3) are the ring assembling structure of even density.
2. a kind of evaporative pattern sandbox with permeability cell pressure ring according to claim 1, it is characterised in that: the disappearance sand
Case (1) bottom is provided with vacuum-pumping tube.
3. a kind of evaporative pattern sandbox with permeability cell pressure ring according to claim 2, it is characterised in that: the vacuum-pumping tube
It is provided with molding sand partition in the evaporative pattern sandbox (1) of top, several through-holes are provided on the molding sand partition, are set in the through-hole
It is equipped with strainer.
4. a kind of evaporative pattern sandbox with permeability cell pressure ring according to claim 1 or claim 2, it is characterised in that: the ease gas
The filter for preventing molding sand from entering is provided on permeability cell (2) in hole (4).
5. a kind of evaporative pattern sandbox with permeability cell pressure ring according to claim 1 or claim 2, it is characterised in that: described ventilative
Pipe (2) diameter is 5~10cm.
6. a kind of evaporative pattern sandbox with permeability cell pressure ring according to claim 1 or claim 2, it is characterised in that: the pressure ring
(3) internal diameter is 5.1~10.1cm.
7. a kind of evaporative pattern sandbox with permeability cell pressure ring according to claim 1 or claim 2, it is characterised in that: the ease gas
Hole (4) diameter is 1~1.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372264.XU CN208960936U (en) | 2018-08-24 | 2018-08-24 | A kind of evaporative pattern sandbox with permeability cell pressure ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372264.XU CN208960936U (en) | 2018-08-24 | 2018-08-24 | A kind of evaporative pattern sandbox with permeability cell pressure ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208960936U true CN208960936U (en) | 2019-06-11 |
Family
ID=66753817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821372264.XU Expired - Fee Related CN208960936U (en) | 2018-08-24 | 2018-08-24 | A kind of evaporative pattern sandbox with permeability cell pressure ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208960936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669721A (en) * | 2022-03-18 | 2022-06-28 | 江西亿丰精密铸造有限公司 | Nodular cast iron lost foam sand box |
-
2018
- 2018-08-24 CN CN201821372264.XU patent/CN208960936U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114669721A (en) * | 2022-03-18 | 2022-06-28 | 江西亿丰精密铸造有限公司 | Nodular cast iron lost foam sand box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190611 Termination date: 20210824 |