CN203972789U - A kind of lost foam casting sandbox assembly - Google Patents
A kind of lost foam casting sandbox assembly Download PDFInfo
- Publication number
- CN203972789U CN203972789U CN201420431583.9U CN201420431583U CN203972789U CN 203972789 U CN203972789 U CN 203972789U CN 201420431583 U CN201420431583 U CN 201420431583U CN 203972789 U CN203972789 U CN 203972789U
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- sandbox
- pipe
- lost foam
- frock
- air intake
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Abstract
The utility model relates to lost foam casting field, is specifically related to a kind of lost foam casting sandbox assembly, and it comprises sandbox frock and vacuum generating system; Described sandbox frock comprises sandbox main body, rectangle exhaust pipe and exhaust tube is set, and the lower surface of described exhaust pipe is provided with air intake window, and the arranged outside of described air intake window has sieve plate, between described sieve plate and air intake window, is provided with Air Filter; Described vacuum generating system comprises the primary dust removing device, vavuum pump and the steam-water separator that are linked in sequence, and the import of described primary dust removing device is connected with the exhaust tube of sandbox frock, and vavuum pump is driven by motor.This device use time, waste gas arrange outward and treatment effect good, can improve workshop environment, avoided the problem of atmosphere pollution in cavityless casting casting process.Be conducive to improve molten iron mold-filling capacity, improve the rate of climb of molten iron, the surface smoothness of raising foundry goods, improve the quality of products.
Description
Technical field
The utility model relates to a kind of lost foam casting sandbox assembly.
Background technology
Lost foam casting is to replace mold to carry out moulding with foam mould, and model does not take out, and directly carries out molten metal casting, and foam mould high-temperature gasification disappears, thereby obtains desirable foundry goods.But, when foam mould high-temperature gasification, can produce a large amount of gas, if gas can not be discharged in time, cavity pressure is excessive, speed and the quality of impact casting, and foundry goods there will be elephant skin and folder carbon phenomenon to a certain degree, especially, while casting large part, even may cause foundry goods to be scrapped.Therefore, for lost foam casting, need to design a kind of can combustion gas sandbox and the vacuum extractor that sandbox is bled.
Existing sandbox exhaust performance is bad.At present cavityless casting is embedded in the white mould of EPS in resin bonded sand mould and runs into high temperature liquid iron and gasify immediately in the time of cast, and discharges outside casting mold and burn, and when burning, waste gas is normally discharged to workshop, and damage ratio is more serious.In order to address this problem, reduce pollution, in continent, this type of enterprise is provided with trolley exhaust device in Japan, when cast, flue dust cover is moved to cast sandbox top, then exhales pernicious gases by enclosure.But its shortcoming: the one, exhaust apparatus cost is large.The 2nd, often there is phase mutual interference with shop traveller in mobile device, exhaust apparatus can not be in time, and affect exhaust effect.
Utility model content
Technical problem to be solved in the utility model is to provide the negative pressure casting sandbox assembly that a kind of exhaust performance is good, simple in structure.
The utility model adopts following technical scheme:
A kind of lost foam casting sandbox assembly, comprises sandbox frock and vacuum generating system; Described sandbox frock comprises sandbox main body, is arranged at the rectangle exhaust pipe in sandbox main body and the exhaust tube being communicated with described exhaust pipe in sandbox main body wall is set, described exhaust pipe comprises multiple longitudinal blast pipes and multiple transverse row tracheae, described longitudinal blast pipe and the orthogonal intersection of transverse row tracheae, longitudinally the infall of blast pipe and transverse row tracheae interconnects, the lower surface of described exhaust pipe is provided with air intake window, the arranged outside of described air intake window has sieve plate, between described sieve plate and air intake window, is provided with Air Filter;
Described vacuum generating system comprises the primary dust removing device, vavuum pump and the steam-water separator that are linked in sequence, and the import of described primary dust removing device is connected with the exhaust tube of sandbox frock, and vavuum pump is driven by motor;
Described primary dust removing device is wet dust separater, it comprises wet type venturi scrubber, Venturi tube, water pump, circulating water pool, blow-off pipe and sedimentation basin, described Venturi tube is arranged at described wet type venturi scrubber entrance point, Venturi tube is connected with the exhaust tube of sandbox frock by pipeline, the water inlet pipe of described water pump is communicated with circulating water pool, the outlet pipe of water pump is connected with the trunnion place of described Venturi tube, the bottom discharge openings of described wet type venturi scrubber is communicated with sedimentation basin, described sedimentation basin top is communicated with circulating water pool by pipeline, described sedimentation basin bottom is provided with blow-off pipe.
Further improve as the utility model, described vacuum generating system also comprises two-stage dust removal device, and described two-stage dust removal device is arranged between primary dust removing device and vavuum pump.
Further improve as the utility model, on the upper edge of described sandbox body and lower edge, be provided with eaves board, between described eaves board, be provided with gusset, described gusset is vertically welded on sandbox body.
Further improve as the utility model, the two side of described sandbox body is provided with suspension ring, and described sandbox body inner side is provided with the stiffener of welding hanging ring.
Good effect of the present utility model is as follows:
The utility model is simple in structure, combine use by sandbox and the vacuum generating system with gas exhaust piping, the gas that in casting process, the white mould high-temperature gasification of EPS produces is discharged in time, avoid the too high air pressure of the inner formation of die cavity, the speed and the quality that have ensured casting are that the yield rate of foundry goods improves greatly.The outer row of waste gas and treatment effect are good, can improve workshop environment, have avoided the problem of atmosphere pollution in cavityless casting casting process.Be conducive to improve molten iron mold-filling capacity, improve the rate of climb of molten iron, the surface smoothness of raising foundry goods, improve the quality of products.
The blast pipe intermeshing in sandbox forms exhaust pipe, air intake window is set on exhaust pipe and ventilates, and on air intake window, fixes Air Filter by sieve plate, has realized unobstructed exhaust and has prevented that sand is inhaled in exhaust pipe.
In vacuum generating system, use dust arrester, can first the sand and dust in air-flow be gone out, prevent that sand and dust from damaging vavuum pump.Two-stage dedusting can ensure that the sand and dust in air-flow are completely removed.Carry out dedusting by venturi type Wet-way dust-collector, trickle dust can be removed, when avoiding vavuum pump to damage, that can try one's best removes fine particle, avoids causing air pollution.
Brief description of the drawings
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is the plan structure schematic diagram of the utility model sandbox;
Accompanying drawing 3 is the utility model sandbox sectional structure schematic diagram;
Accompanying drawing 4 is the utility model sandbox side-looking structural representation;
Accompanying drawing 5 is the utility model Air Filter mounting structure schematic diagram;
Accompanying drawing 6 is the utility model sieve plate structural representation;
Accompanying drawing 7 is the mounting structure schematic diagram of the utility model suspension ring;
Accompanying drawing 8 is the structural representation of the utility model dust arrester.
In the accompanying drawings: 1-1 sandbox main body, 1-2 exhaust tube, the longitudinal blast pipe of 1-3,1-4 transverse row tracheae, 1-5 air intake window, 1-6 Air Filter, 1-7 sieve plate, 1-8 eaves board, 1-9 gusset, 1-10 suspension ring, 1-11 stiffener, 2-1 primary dust removing device, 2-2 vavuum pump, 2-3 motor, 2-4 steam-water separator, 2-5 two-stage dust removal device, 21 Venturi tubes, 22 water pumps, 23 circulating water pools, 24 blow-off pipes, 25 sedimentation basins, 26 wet type venturi scrubbers.
Detailed description of the invention
Below in conjunction with accompanying drawing 1-8 and detailed description of the invention, the utility model is described in further detail.
A kind of lost foam casting sandbox assembly as shown in Figure 1, comprises sandbox frock and vacuum generating system, and the import of vacuum generating system is connected with the bleeding point of sandbox assembly.
As shown in Figure 2, described sandbox frock comprises sandbox main body 1-1, is arranged at the rectangle exhaust pipe in sandbox main body 1-1 and the exhaust tube 1-2 being communicated with described exhaust pipe on sandbox main body 1-1 sidewall is set, described exhaust pipe comprises multiple longitudinal blast pipe 1-3 and multiple transverse row tracheae 1-4, described longitudinal blast pipe 1-3 and the orthogonal intersection of transverse row tracheae 1-4, longitudinally the infall of blast pipe 1-3 and transverse row tracheae 1-4 interconnects.
As shown in Figure 5, the lower surface of described exhaust pipe is provided with air intake window 1-5, and the arranged outside of described air intake window 1-5 has sieve plate 1-7, between described sieve plate 1-7 and air intake window 1-5, is provided with Air Filter 1-6; Described Air Filter 1-6 adopts 100 order stainless (steel) wires.
As shown in accompanying drawing 2,3,4, on the upper edge of described sandbox body 1-1 and lower edge, be provided with eaves board 1-8, between described eaves board 1-8, be provided with gusset 1-9, described gusset 1-9 is vertically welded on sandbox body 1-1.The two side of described sandbox body 1-1 is provided with suspension ring 1-10, and described sandbox body 1-1 inner side is provided with the stiffener 1-11 of welding hanging ring 1-10.
As shown in Figure 1, described vacuum generating system comprises the primary dust removing device 2-1, two-stage dust removal device 2-5, vavuum pump 2-2 and the steam-water separator 2-4 that are linked in sequence, the import of described primary dust removing device 2-1 is connected with the exhaust tube 1-2 of sandbox frock, and vavuum pump 2-2 is driven by motor 2-3.Motor 2-3 drives vavuum pump 2-2 work, and vavuum pump 2-2 import is connected with the outlet of two-stage dust removal device 2-5, and the outlet of vavuum pump 2-2 is connected with steam-water separator 2-4.Described primary dust removing device 2-1 and two-stage dust removal device 2-5 all adopt wet dedusting.
Referring to accompanying drawing 8, described primary dust removing device 2-1 is wet dust separater, it comprises wet type venturi scrubber 26, Venturi tube 21, water pump 22, circulating water pool 23, blow-off pipe 24 and sedimentation basin 25, described Venturi tube 21 is arranged at described wet type venturi scrubber 26 entrance points, Venturi tube 21 is connected with the exhaust tube 1-2 of sandbox frock by pipeline, the water inlet pipe of described water pump 22 is communicated with circulating water pool 23, the outlet pipe of water pump 22 is connected with the trunnion place of described Venturi tube 21, the bottom discharge openings of described wet type venturi scrubber 26 is communicated with sedimentation basin 25, described sedimentation basin 25 tops are communicated with circulating water pool 23 by pipeline, described sedimentation basin 25 bottoms are provided with blow-off pipe 24.Described two-stage dust removal device 2-5 can be and the Wet-way dust-collector of primary dust removing device 2-1 same structure, can be also cyclone dust removal.
Air-flow sharply accelerates at the trunnion place of Venturi tube 21, the water that water pump is injected to trunnion place is driven atomization by air-flow, molecule in air-flow settles down after being wrapped up by water smoke, after forming mud, enter into sedimentation basin 25 by the bottom discharge openings of venturi scrubber 26, mud is through precipitation, clear water above flow in circulating water pool 23 and continues to be utilized, and bottom mud is regularly discharged by blow-off pipe 24.
In the time that casting mold is poured into a mould, vacuumize and can accelerate exhaust velocity and reduce capacity, reduce the fltting speed in metal liquid stream forward position, improve liquid stream mold-filling capacity.Reduce cast(ing) surface carbon black defect.The burning that also can suppress to steep mold material, impels gasification, improves environment, increases the mobility of molten metal.Mouldability, makes foundry goods profile more clean clearly demarcated.
Vacuumize the burning that negative pressure can suppress to steep mold, accelerate cracking, decomposition, vaporization, change environment, make to steep the time shorten that mold thermal decomposition product stops in high-temperature region, the possibility of bubble mold deep pyrolytic reduces.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record previous embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technical scheme.
Claims (4)
1. a lost foam casting sandbox assembly, is characterized in that: comprise sandbox frock and vacuum generating system;
Described sandbox frock comprises sandbox main body (1-1), be arranged at the rectangle exhaust pipe in sandbox main body (1-1) and the exhaust tube (1-2) being communicated with described exhaust pipe on sandbox main body (1-1) sidewall is set, described exhaust pipe comprises multiple longitudinal blast pipes (1-3) and multiple transverse row tracheae (1-4), described longitudinal blast pipe (1-3) and the orthogonal intersection of transverse row tracheae (1-4), longitudinally the infall of blast pipe (1-3) and transverse row tracheae (1-4) interconnects, the lower surface of described exhaust pipe is provided with air intake window (1-5), the arranged outside of described air intake window (1-5) has sieve plate (1-7), between described sieve plate (1-7) and air intake window (1-5), be provided with Air Filter (1-6),
Described vacuum generating system comprises the primary dust removing device (2-1), vavuum pump (2-2) and the steam-water separator (2-4) that are linked in sequence, the import of described primary dust removing device (2-1) is connected with the exhaust tube (1-2) of sandbox frock, and vavuum pump (2-2) is driven by motor (2-3);
Described primary dust removing device (2-1) is wet dust separater, it comprises wet type venturi scrubber (26), Venturi tube (21), water pump (22), circulating water pool (23), blow-off pipe (24) and sedimentation basin (25), described Venturi tube (21) is arranged at described wet type venturi scrubber (26) entrance point, Venturi tube (21) is connected with the exhaust tube (1-2) of sandbox frock by pipeline, the water inlet pipe of described water pump (22) is communicated with circulating water pool (23), the outlet pipe of water pump (22) is connected with the trunnion place of described Venturi tube (21), the bottom discharge openings of described wet type venturi scrubber (26) is communicated with sedimentation basin (25), described sedimentation basin (25) top is communicated with circulating water pool (23) by pipeline, described sedimentation basin (25) bottom is provided with blow-off pipe (24).
2. a kind of lost foam casting sandbox assembly according to claim 1, it is characterized in that: described vacuum generating system also comprises two-stage dust removal device (2-5), described two-stage dust removal device (2-5) is arranged between primary dust removing device (2-1) and vavuum pump (2-3).
3. a kind of lost foam casting sandbox assembly according to claim 1, it is characterized in that: on the upper edge of described sandbox body (1-1) and lower edge, be provided with eaves board (1-8), between described eaves board (1-8), be provided with gusset (1-9), described gusset (1-9) is vertically welded on sandbox body (1-1).
4. a kind of lost foam casting sandbox assembly according to claim 1, it is characterized in that: the two side of described sandbox body (1-1) is provided with suspension ring (1-10), described sandbox body (1-1) inner side is provided with the stiffener (1-11) of welding hanging ring (1-10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431583.9U CN203972789U (en) | 2014-08-01 | 2014-08-01 | A kind of lost foam casting sandbox assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420431583.9U CN203972789U (en) | 2014-08-01 | 2014-08-01 | A kind of lost foam casting sandbox assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203972789U true CN203972789U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420431583.9U Expired - Fee Related CN203972789U (en) | 2014-08-01 | 2014-08-01 | A kind of lost foam casting sandbox assembly |
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| Country | Link |
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| CN (1) | CN203972789U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108232A (en) * | 2018-09-21 | 2019-01-01 | 山西华翔集团股份有限公司 | V method casting pressure stabilizing filter device and V method casting system |
| CN109986031A (en) * | 2018-12-29 | 2019-07-09 | 汉中华燕科技开发有限公司 | A kind of sandbox |
| CN113894249A (en) * | 2021-08-20 | 2022-01-07 | 山东国耀金属科技有限公司 | Lost foam casting combustion white mold device with vacuum auxiliary mold taking function |
-
2014
- 2014-08-01 CN CN201420431583.9U patent/CN203972789U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109108232A (en) * | 2018-09-21 | 2019-01-01 | 山西华翔集团股份有限公司 | V method casting pressure stabilizing filter device and V method casting system |
| CN109986031A (en) * | 2018-12-29 | 2019-07-09 | 汉中华燕科技开发有限公司 | A kind of sandbox |
| CN113894249A (en) * | 2021-08-20 | 2022-01-07 | 山东国耀金属科技有限公司 | Lost foam casting combustion white mold device with vacuum auxiliary mold taking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20200801 |
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| CF01 | Termination of patent right due to non-payment of annual fee |