CN204486709U - A kind of lost foam mould - Google Patents
A kind of lost foam mould Download PDFInfo
- Publication number
- CN204486709U CN204486709U CN201520038475.XU CN201520038475U CN204486709U CN 204486709 U CN204486709 U CN 204486709U CN 201520038475 U CN201520038475 U CN 201520038475U CN 204486709 U CN204486709 U CN 204486709U
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- Prior art keywords
- counterdie
- airduct
- group
- shaped container
- feed pipe
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Abstract
The utility model discloses a kind of lost foam mould, comprising: counterdie, patrix, the airduct group being provided with feed pipe group and counterdie is vacuumized; Dividing plate group, it comprises at least two pieces of dividing plates, and described diaphragm internal has second of housing hydrogen sodium oxide molybdena and holds cavity, and described dividing plate adopts multilayer aperture metal screen not of uniform size to make; Workbench, the first U-shaped container of splendid attire feed liquid and the second U-shaped container of splendid attire calcium hydroxide aqueous solution is provided with in it, described first U-shaped container is provided with air inlet pipe, counterdie is partitioned into three cavitys by described dividing plate group, first U-shaped container of described workbench is communicated with the evaporative pattern in counterdie by stalk, and the second U-shaped container of described workbench is communicated with counterdie by airduct group.Lost foam mould of the present utility model, because being provided with airduct group and dividing plate therein, thus has yield rate high, and stability is strong, the beneficial effect of environmental protection more.
Description
Technical field
The utility model relates to a kind of mould used at present in casting.More particularly, the utility model relates to the evaporative pattern mold used when a kind of use is cast under vacuum conditions.
Background technology
Existing evaporative pattern mold is mainly used in that product structure is more complicated, and inside has cavity, and when adopting core to cast, in the situation that core not easily takes out, or casting accuracy requires higher, it is shaping needs Sectional Cast, and the later stage adopts the alloy-steel casting of welding assembly.
Specifically, in prior art, common lost foam casting fills molding sand in the counterdie placing evaporative pattern mold, evaporative pattern mold is fixed, and then liquid pipeline is watered in setting, to the Position input feed liquid at evaporative pattern mold place, evaporative pattern mold disappears in the high temperature action gasified of feed liquid, replaced the position at evaporative pattern mold script place by feed liquid, finally cooling forms foundry goods.
But in this casting, no matter adopt any material to make evaporative pattern, a certain amount of water and carbon dioxide can be produced in evaporative pattern mold gasification, there is larger gas forming amount simultaneously, if can not in time carbon dioxide be discharged, the surface of the foundry goods causing it to produce can produce carburization zone, affect the quality of foundry goods, especially when the foundry goods of casting alloy class, the yield rate of its foundry goods is low, and then production cost is increased, if gas forming amount is not controlled well, have no idea equally to ensure the quality of foundry goods, in casting cycle, easily occur that the phenomenon that molding sand comes off occurs in addition, the quality of product can not be guaranteed, poor stability.
In the prior art, there is evaporative pattern mold counterdie being carried out to vacuum setting, but it does not arrange separately special air draft pipe, counterdie is made to have the gas forming amount produced in gasification to can not get effective control at evaporative pattern mold, simultaneously insufficient to the absorption of carbon dioxide, affect the quality of foundry goods, and any process is not done to the carbon dioxide that vacuum is extracted out, to directly discharge in atmosphere, and air be polluted, is unfavorable for environmental protection.
Utility model content
An object of the present utility model solves at least the problems referred to above and/or defect, and provide the advantage will illustrated at least below.
The utility model also has an object to be to provide a kind of lost foam mould, it is absorbed the carbon dioxide produced in evaporative pattern mould gasification respectively by airduct group and dividing plate, and in the duty vacuumized, Synchronization Control is carried out to gas forming amount by airduct group, the yield rate of foundry goods is significantly improved, and the carbon dioxide that airduct group is extracted out is processed, environmental protection more, additionally by airduct group vacuumizing counterdie, to make between inside stuffing consolidation more, the situation not easily occurring coming off filler the casting quality that causes can not be guaranteed, the stability of mould is strengthened.
In order to realize, according to these objects of the present utility model and other advantage, providing a kind of lost foam mould, comprising:
Counterdie, its inside has the first accommodation cavity, and described first holds cavity bottom is provided with multiple strip groove;
Patrix, is provided with the first feed pipe group holding cavity filling filler and the airduct group vacuumized by counterdie in counterdie;
Dividing plate group, it comprises at least two pieces of dividing plates, and described diaphragm internal has second of housing hydrogen sodium oxide molybdena and holds cavity, and described dividing plate adopts multilayer aperture metal screen not of uniform size to make;
Workbench, is provided with the first U-shaped container of splendid attire feed liquid and the second U-shaped container of splendid attire calcium hydroxide aqueous solution, described first U-shaped container is provided with air inlet pipe in it;
Wherein, described patrix is positioned at above counterdie, and be communicated with counterdie with airduct group by feed pipe group, described counterdie is fixedly installed on the table, counterdie to be partitioned into three cavitys on the strip groove that described dividing plate group is arranged on counterdie, first U-shaped container of described workbench is communicated with the evaporative pattern in counterdie by stalk, and the second U-shaped container of described workbench is communicated with counterdie by airduct group.
Preferably, wherein, described feed pipe group comprises to the first feed pipe of counterdie each cavity filling filler and the second feed pipe to the second accommodation cavity filling NaOH in each dividing plate.
Preferably, wherein, the horizontal feed pipe that described first feed pipe, the second feed pipe comprise the first straight feed pipe respectively and be connected with the first straight feed pipe, and described horizontal feed pipe is also connected with the second straight feed pipe holding cavity connects with second in each cavity, each dividing plate.
Preferably, wherein, the free end of the described first straight feed pipe is connected with trumpet-shaped charging interface.
Preferably, wherein, the horizontal airduct that described airduct group comprises the first straight airduct and is connected with the first straight airduct, and described horizontal airduct is also connected with the straight airduct with second of each cavity connects.
Preferably, wherein, the free end of the described second straight airduct is connected with trumpet-shaped duct collar, the open end of described duct collar is provided with the metal screen that multilayer aperture is not of uniform size, described airduct group is by duct collar and each cavity connects, and the free end of the straight airduct of described airduct group first stretches in the calcium hydroxide aqueous solution in described second U-shaped container, is provided with vavuum pump in described horizontal airduct.
Preferably, wherein, described workbench is also provided with the 3rd U-shaped container of feed liquid processing, described 3rd U-shaped container is by stair-stepping input duct and the first U-shaped reservoir.
Preferably, wherein, described first U-shaped external container is also provided with heat-insulation layer, and the position that described first U-shaped container is communicated with input duct is also movably set with baffle plate, described input duct is provided with and controls the valve that feed liquid flows into the first U-shaped container.
Preferably, wherein, described stalk is provided with to the feed liquid entering counterdie carry out buffering cross section be the protuberance of arc.
Preferably, wherein, described air inlet pipe is positioned at outside side and is also provided with actuating unit.
The utility model at least comprises following beneficial effect: due to the airduct group arranged in patrix, it vacuumizes to keep carrying out first time absorption to the carbon dioxide in casting cycle while consolidation between filler to counterdie, the dividing plate group of simultaneously adding in counterdie, the NaOH arranged in it can to entering in filler, and do not have complete absorbed carbon dioxide to carry out double absorption, than traditional absorption mode, its absorption efficiency is higher, assimilation effect is better, and then make cast(ing) surface can not occur carburization zone because of the residual of carbon dioxide, make shaping after casting yield greatly improve.
Part is embodied by explanation below by other advantage of the present utility model, target and feature, part also will by research and practice of the present utility model by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of lost foam mould in an embodiment of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to description word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not allotted in " comprising " and " comprising " term or the existence of its combination or interpolation.
Fig. 1 shows according to a kind of lost foam mould way of realization of the present utility model, comprising:
Counterdie 100, its inside has the first accommodation cavity 110, described first holds cavity for holding evaporative pattern, and hold to evaporative pattern be fixed filler, as molding sand and NaOH, and described first accommodation cavity bottom is provided with multiple strip groove (not shown), and described groove is for holding dividing plate, and can treat that the size of cast arbitrarily adjusts the position of dividing plate by inner, be beneficial to casting;
Patrix 200, be provided with the feed pipe group 210 holding cavity 110 filling filler to first in counterdie 100 and the airduct group 220 vacuumized by counterdie 100, described feed pipe group is respectively used to hold cavity to first and fills molding sand and NaOH, to be fixed the first evaporative pattern held in cavity, described airduct group vacuumizes for keeping the counterdie being filled with filler, and the carbon dioxide enabling it produce in casting cycle is discharged;
Dividing plate group 300, it comprises at least two pieces of dividing plates 310, described dividing plate 310 inside has second of housing hydrogen sodium oxide molybdena and holds cavity 311, and described dividing plate 310 adopts multilayer aperture metal screen not of uniform size to make, it is with the NaOH of interior setting, to make in evaporative pattern gasification the moisture of fully discharging and carbon dioxide can directly and NaOH react, generate sodium carbonate and water, molding sand due to filler is dry sand, so unnecessary moisture can directly be sponged, can not have an impact to the quality of foundry goods;
Workbench 400, the first U-shaped container 410 of splendid attire feed liquid and the second U-shaped container 420 of splendid attire calcium hydroxide aqueous solution is provided with in it, described first U-shaped container 410 is provided with air inlet pipe 411, the pressure that described first U-shaped container is used for being provided by air inlet pipe provides feed liquid to the evaporative pattern being positioned at counterdie, splendid attire calcium hydroxide aqueous solution in described second U-shaped container is used for the carbon dioxide that airduct group is collected to react, generate calcium carbonate and water, it is prevented directly to be disposed in air, to the pollution that air causes;
Wherein, described patrix 200 is positioned at above counterdie 100, and be communicated with counterdie 100 with airduct group 220 by feed pipe group 210, described counterdie 100 is fixedly installed on workbench 400, so that counterdie 100 is partitioned into three cavitys 111,112,113 on the strip groove that described dividing plate group 300 is arranged on counterdie 100, first U-shaped container 410 of described workbench 400 is communicated with the evaporative pattern in counterdie 100 by stalk 412, and the second U-shaped container 420 of described workbench 400 is communicated with counterdie 100 by airduct group 220.The carbon dioxide adopting this scheme to be produced in the casting cycle of evaporative pattern by airduct group carries out first step absorption, the carbon dioxide that the NaOH arranged in dividing plate is used for airduct group fails to absorb in time carries out second step absorption, the carbon dioxide that the casting cycle of evaporative pattern is produced can fully be predominantly absorbed, prevent it from forming carburization zone at cast(ing) surface, and on the impact that the product quality of foundry goods causes, there is the favourable part improving yield rate, wherein, the sodium carbonate that NaOH and carbon dioxide reaction generate and water, sodium carbonate can dissolve in water, water is absorbed by molding sand again, can not have any impact to foundry goods, and the sodium carbonate dissolved in molding sand can be removed easily, can not use the secondary of molding sand and impact, additionally by airduct group extract out CO2 emission in calcium carbonate soln, its reaction generate calcium carbonate and water, can not pollute air, there is the favourable part of environmental protection.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, described feed pipe group 210 comprises to the first feed pipe 211 of counterdie each cavity filling filler and the second feed pipe 212 to the second accommodation cavity filling NaOH in each dividing plate.Adopt this scheme respectively to filling filler in the cavity of three in counterdie and dividing plate, it is quick that it has filling, and the favourable part be independent of each other each other.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, described first feed pipe 211, second feed pipe 212 comprises the first straight feed pipe 211 (a), 212 (a) and the horizontal feed pipe 211 (b) be connected with the first straight feed pipe, 212 (b) respectively, and described horizontal feed pipe is also connected with hold cavity connects with second in each cavity, each dividing plate the second straight feed pipe 211 (c), 212 (c).Adopt this scheme to make each cavity and interior second hold the filler filling speed of cavity unanimously, the favourable part of the phenomenon of diaphragm excursion or extruding mutually can not be caused.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, the free end of the described first straight feed pipe 211 (a), 212 (a) is connected with trumpet-shaped charging interface 211 (d), 212 (d).Adopt the charging interface of this scheme to have the open end holding filler, make filler charging favourable part smoothly.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, the horizontal airduct 222 that described airduct group 220 comprises the first straight airduct 221 and is connected with the first straight airduct, and described horizontal airduct is also connected with the straight airduct 223 with second of each cavity connects.Adopt this scheme to have to vacuumize three cavitys being filled with filler, its contact area is larger, is more conducive to the favourable part of the extraction of carbon dioxide simultaneously.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, the free end of the described second straight airduct 223 is connected with trumpet-shaped duct collar 224, the open end of described duct collar is provided with the metal screen that multilayer aperture is not of uniform size, described metal screen is used for preventing airduct group at work, the molding sand of cavity is rolled into airduct inside, and to the damage that vavuum pump causes, described airduct group is by duct collar and each cavity connects, and the free end of the straight airduct of described airduct group first stretches in the calcium hydroxide aqueous solution in described second U-shaped container, vavuum pump 224 is provided with in described horizontal airduct, it is for providing power, with shape that each chamber is evacuated, make to combine between the filler of filling in the first accommodation cavity tightr, fall into the product of casting liquid to casting in the process that can not disappear at evaporative pattern to pollute, and the carbon dioxide produced during casting is taken away simultaneously.The stable performance of mould when adopting this scheme to have a casting, and the favourable part that casting yield is high.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, described workbench is also provided with the 3rd U-shaped container 430 of feed liquid processing, described 3rd U-shaped container is by stair-stepping input duct 431 and the first U-shaped reservoir.Stair-stepping input duct makes the height between feed liquid have layering, can supplement feed liquid more smoothly, adopt this scheme have can be real-time the feed liquid of the first U-shaped container supplemented, have and eliminate the not enough favourable part to the adverse effect that casting produces of feed liquid.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, described first U-shaped external container is also provided with heat-insulation layer 413, the position that described first U-shaped container is communicated with input duct is also movably set with baffle plate 414, baffle plate is for providing access for the feed liquid of the first U-shaped container enters, and when not needing interpolation feed liquid, the first U-shaped container is closed, to ensure that its inner sealing is to pressurize to its inside by air inlet pipe, make feed liquid can enter counterdie by stalk smoothly, described input duct is provided with and controls the valve 432 that feed liquid flows into the first U-shaped container.Adopt this scheme to have to carry out insulation to feed liquid and prevent its temperature from declining to watering fluid origin adverse effect, and simultaneously for entering by stair-stepping feed liquid pipeline the favourable part that the feed liquid in the first U-shaped container provides access.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, described stalk 412 is provided with and the feed liquid entering counterdie is cushioned and cross section is the protuberance 412 (a) of arc.Adopt this scheme to have and have an effect for buffering to the feed liquid entering counterdie, make its feed liquid entering counterdie comparatively mild, impact can not be molded as to disappearance, and cause the favourable part of distortion.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
In another kind of example, described air inlet pipe 411 is positioned at outside side and is also provided with actuating unit 415.Adopt this scheme to have and provide pressure to air inlet pipe, make the feed liquid being arranged in the first U-shaped container can enter into stalk under the effect of the pressure, to realize the favourable part of casting.Further, this mode is a kind of explanation of preferred embodiments, but is not limited thereto.
Here the number of devices illustrated and treatment scale are used to simplify explanation of the present utility model.The application of lost foam mould of the present utility model, modifications and variations be will be readily apparent to persons skilled in the art.
As mentioned above, according to the utility model, one, due to the airduct group arranged in patrix, it vacuumizes to keep carrying out first time absorption to the carbon dioxide in casting cycle while consolidation between filler to counterdie, the dividing plate group of simultaneously adding in counterdie, the NaOH arranged in it can to entering in filler, and do not have complete absorbed carbon dioxide to carry out double absorption, than traditional absorption mode, its absorption efficiency is higher, assimilation effect is better, and then make cast(ing) surface can not occur carburization zone because of the residual of carbon dioxide, make shaping after casting yield greatly improve.
They are two years old, airduct group for vacuumizing in the utility model, its one end is communicated with counterdie, the other end is communicated with the aqueous solution that calcium hydroxide is housed, the carbon dioxide that airduct group is collected can directly react away, can not pollute air, more environmental protection, and the segmentation of airduct group and each section have the design of open end, airduct is vacuumized relative to traditional, its contact area is larger, vacuumizing effect is better, to make between the filler in counterdie consolidation more, do not have the phenomenon generation that filler comes off, the Product Precision of casting is higher, better effects if, the wire netting of airduct group open end design in addition, filler can not defendant's inspiration airduct at work to make airduct group, and airduct is resulted in blockage, or damage is caused to vavuum pump, the stability of mould itself and service life are significantly improved.
Its three, in the utility model, feed liquid being carried out to the first U-shaped container in real time and supplement, preventing feed liquid not enough in watering fluid origin impact, and the design of stalk, mild when making feed liquid enter counterdie, can not impact, there is the beneficial effect that stability is high.
Although embodiment of the present utility model is open as above, it is not restricted to listed in description and embodiment utilization.It can be applied to various applicable field of the present utility model completely.For those skilled in the art, can easily realize other amendment.Therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (10)
1. a lost foam mould, is characterized in that, comprising:
Counterdie, its inside has the first accommodation cavity, and described first holds cavity bottom is provided with multiple strip groove;
Patrix, is provided with the first feed pipe group holding cavity filling filler and the airduct group vacuumized by counterdie in counterdie;
Dividing plate group, it comprises at least two pieces of dividing plates, and described diaphragm internal has second of housing hydrogen sodium oxide molybdena and holds cavity, and described dividing plate adopts multilayer aperture metal screen not of uniform size to make;
Workbench, is provided with the first U-shaped container of splendid attire feed liquid and the second U-shaped container of splendid attire calcium hydroxide aqueous solution, described first U-shaped container is provided with air inlet pipe in it;
Wherein, described patrix is positioned at above counterdie, and be communicated with counterdie with airduct group by feed pipe group, described counterdie is fixedly installed on the table, counterdie to be partitioned into three cavitys on the strip groove that described dividing plate group is arranged on counterdie, first U-shaped container of described workbench is communicated with the evaporative pattern in counterdie by stalk, and the second U-shaped container of described workbench is communicated with counterdie by airduct group.
2. lost foam mould as claimed in claim 1, is characterized in that, described feed pipe group comprises to the first feed pipe of counterdie each cavity filling filler and the second feed pipe to the second accommodation cavity filling NaOH in each dividing plate.
3. lost foam mould as claimed in claim 2, it is characterized in that, the horizontal feed pipe that described first feed pipe, the second feed pipe comprise the first straight feed pipe respectively and be connected with the first straight feed pipe, and described horizontal feed pipe is also connected with the second straight feed pipe holding cavity connects with second in each cavity, each dividing plate.
4. lost foam mould as claimed in claim 3, it is characterized in that, the free end of the described first straight feed pipe is connected with trumpet-shaped charging interface.
5. lost foam mould as claimed in claim 1, is characterized in that, the horizontal airduct that described airduct group comprises the first straight airduct and is connected with the first straight airduct, and described horizontal airduct is also connected with the straight airduct with second of each cavity connects.
6. lost foam mould as claimed in claim 5, it is characterized in that, the free end of the described second straight airduct is connected with trumpet-shaped duct collar, the open end of described duct collar is provided with the metal screen that multilayer aperture is not of uniform size, described airduct group is by duct collar and each cavity connects, and the free end of the straight airduct of described airduct group first stretches in the calcium hydroxide aqueous solution in described second U-shaped container, is provided with vavuum pump in described horizontal airduct.
7. lost foam mould as claimed in claim 1, is characterized in that, described workbench is also provided with the 3rd U-shaped container of feed liquid processing, described 3rd U-shaped container is by stair-stepping input duct and the first U-shaped reservoir.
8. lost foam mould as claimed in claim 7, it is characterized in that, described first U-shaped external container is also provided with heat-insulation layer, the position that described first U-shaped container is communicated with input duct is also movably set with baffle plate, described input duct is provided with and controls the valve that feed liquid flows into the first U-shaped container.
9. lost foam mould as claimed in claim 1, is characterized in that, described stalk is provided with to carry out buffering cross section to the feed liquid entering counterdie be the protuberance of arc.
10. lost foam mould as claimed in claim 1, is characterized in that, described air inlet pipe is positioned at outside side and is also provided with actuating unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520038475.XU CN204486709U (en) | 2015-01-20 | 2015-01-20 | A kind of lost foam mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520038475.XU CN204486709U (en) | 2015-01-20 | 2015-01-20 | A kind of lost foam mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204486709U true CN204486709U (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520038475.XU Expired - Fee Related CN204486709U (en) | 2015-01-20 | 2015-01-20 | A kind of lost foam mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204486709U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117000951A (en) * | 2023-09-28 | 2023-11-07 | 靖江市鸿奕铸造机械有限公司 | Valve casting mould |
-
2015
- 2015-01-20 CN CN201520038475.XU patent/CN204486709U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117000951A (en) * | 2023-09-28 | 2023-11-07 | 靖江市鸿奕铸造机械有限公司 | Valve casting mould |
| CN117000951B (en) * | 2023-09-28 | 2023-12-15 | 靖江市鸿奕铸造机械有限公司 | Valve casting mould |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20180120 |