CN204934492U - A kind of windmill molding sand cooling device - Google Patents
A kind of windmill molding sand cooling device Download PDFInfo
- Publication number
- CN204934492U CN204934492U CN201520632566.6U CN201520632566U CN204934492U CN 204934492 U CN204934492 U CN 204934492U CN 201520632566 U CN201520632566 U CN 201520632566U CN 204934492 U CN204934492 U CN 204934492U
- Authority
- CN
- China
- Prior art keywords
- molding sand
- charging hopper
- windmill
- hollow tube
- cooling
- 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
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
This patent application discloses a kind of windmill molding sand cooling device belonging to foundary industry field, low to cooling effectiveness in existing molding sand cooling procedure, the dry not problem of cooled molding sand has made improvement.Specifically comprising for storing the charging hopper of molding sand reclaimed, interting the some transversal hollow pipes on charging hopper sidewall, be arranged on the windmill of charging hopper upper portion side wall.Cooling fluid is poured in hollow tube, to take out from sand box and high temperature molding sand through screening is poured into after in charging hopper and dropped on the blade of windmill, drive windmill rotate to molding sand carry out air-cooled and slow down molding sand fall speed, cooling fluid in the molding sand fallen and hollow tube is carried out heat exchange and is reached the object reducing molding sand temperature, horizontally set hollow tube makes the molding sand of charging hopper core can lower the temperature with the molding sand of periphery simultaneously, enable molding sand uniform decrease in temperature, make cooling effectiveness higher, cooling effect is better.
Description
Technical field
The utility model relates to foundary industry field, is specifically related to a kind of windmill molding sand cooling device.
Background technology
At casting manufacture field, Technology of EPC is as the foundry goods forming method of a kind of advanced person, world in recent years obtains and develops rapidly, especially in automobile manufacture industry, the part producing coloured and ferrous metal dynamical system can be widely used in, as foundry goods such as cylinder block, cylinder cover, bent axle, gearbox, air inlet pipe, blast pipe and brake hubs.Lost foam casting adopts foam mould and dry moulding, becomes foundry goods after pouring metal melt by casting mold cooled and solidified.In the process, molten metal major part heat will be transmitted on sand mold, and the temperature of sand is raised, and the local sand temperature particularly contacted with foundry goods even can up to a few Baidu.In actual production, lost foam casting is produced Sand and can repeatedly be reused, to reduce parts machining process costs, if but the sand temperature of reuse can not get effective control, adopt high temperature modification sand molding that bubbles model will be caused to damage, therefore lost foam casting is in large-scale continuous production, and the cooling of molding sand seems particularly important.At present, existing molding sand cooling adopts the mode of water-cooled and air-cooled cooperation mostly, first after a procedure with the temperature of the molding sand of high temperature spraying water smoke reduction molding sand, then provides wind to blow over molding sand by devices such as blower fans and molding sand is lowered the temperature.Although this type of cooling can reduce the temperature of the molding sand of superficial layer effectively, but the cooling effect being positioned at the molding sand of mid portion is unsatisfactory, cooling effectiveness is low, and cooled molding sand contains larger moisture, cast(ing) surface can be made in Reusability process in casting process with contact with moisture, bubble to occur to be oxidized or to produce, reduce the quality of foundry goods.
Chinese patent CN201231301Y discloses a kind of molding sand cooling device, comprise charging sand hopper, cooling end and sandbox, described cooling end comprises a cavity and is located at the hollow tube of the interior some vertical arrangement of cavity, gap between each hollow tube inner chamber or each hollow tube forms the flow channel of molding sand, which is provided with the sand inlet that can be communicated with charging sand hopper and the sand export that can be communicated with sandbox; Gap between each hollow tube adjoined with above-mentioned flow channel or each hollow tube inner chamber form the cooling duct that can be connected with cooling source; Between sandbox and cooling end, be also provided with the sand temperature modulator of a controlled sand export keying processed.Make to be dispersed into much downward branch during molding sand heat exchange, and can successfully automatically fall very much, the heat exchange dead angle formed when avoiding molding sand blocking and the cooling failure phenomenon that causes, improve heat exchanger effectiveness.But this cooling device in use high temperature molding sand is poured directly on hollow tube, the larger impact continued is produced to hollow tube, permanent use easily makes the thinning even perforation of tube wall on the upside of hollow tube cause cooling fluid to leak afterwards, causes molding sand to keep dry, affects castability.
Utility model content
High and the molding sand cooling device that molding sand is kept dry of the cooling effectiveness that the purpose of this utility model is to provide a kind of available buffer molding sand to fall.
For achieving the above object, basic technology scheme of the present utility model is as follows: a kind of windmill molding sand cooling device, comprise charging hopper, low-temperature receiver, storage tank, the upper end of described charging hopper is provided with charging aperture, the lower end of charging hopper is provided with discharging opening, described charging hopper is rectangular box, and the bottom angled of charging hopper is arranged, and described discharging opening is positioned at the side of charging hopper bottom low side; The sidewall of charging hopper is interspersed with the hollow tube that multiple-layer horizontal direction is arranged, and every layer is distributed with some hollow tubes, has gap between hollow tube; The two ends of described hollow tube reach outside charging hopper, and one end of hollow tube is connected with low-temperature receiver, and the other end is connected with storage tank.Also comprise the support be fixed on the sidewall of charging hopper top one, described support has two, windmill is fixed with between support, described windmill comprises two ends and is fixed in the equally distributed rectangular paddle plate of hoop in rotating shaft on support and rotating shaft respectively, and described rectangular paddle plate is positioned at the below of charging hopper charging aperture; Oblique support bar is connected with between described support and sidewall.
The principle of this programme: during operation, high temperature molding sand after screening is poured in charging hopper and stores, molding sand drops on the vane plate of windmill, under the Action of Gravity Field and percussion of molding sand, windmill is rotated, windmill rotates and makes the flowing of the air in charging hopper carry out air-cooled to molding sand, and windmill stops the molding sand fallen simultaneously.Molding sand whereabouts is filled up the gap between hollow tube and is fully contacted with the outer wall of hollow tube, then in hollow tube, cooling fluid is filled with by low-temperature receiver, cooling fluid by hollow tube and molding sand carry out heat exchange make air-cooled after molding sand temperature reduce further, cooling fluid after heat exchange flows out from the other end of hollow tube, continues in hollow tube, be filled with cooling fluid and makes molding sand continued down until the temperature of the cooling fluid flowed out in hollow tube reaches required temperature.
The advantage of this programme is: arrange windmill at the sidewall on charging hopper top and utilize molding sand to carry out air-cooled to the molding sand that the impact of air vane plate drives windmill to rotate falling, slow down the speed that molding sand falls simultaneously, reduce molding sand to the impact of hollow tube, make the longer service life of hollow tube.Wherein adopt the vane plate of rectangle, make the contact area of vane plate and molding sand and air larger, the wind formed in rotation process is larger, better to the cooling effect of molding sand.Horizontally disposed hollow tube can make in the middle of charging hopper and peripheral molding sand can carry out heat exchange with hollow tube, makes molding sand can uniform decrease in temperature, improves cooling effectiveness.Not and contact with moisture, the molding sand after cooling does not keep dry state the casting that can be directly used in once this programme Sand in charging hopper.
Preferred version one, based on scheme one improve.Described hollow tube is U-shaped pipe, and the bending part of U-shaped pipe is positioned at the outside of charging hopper.Adopt the above-mentioned cooling fluid that arranges to enter and carry out heat exchange at the bending part of U-shaped pipe and the external world after hollow tube and molding sand carry out a heat exchange and to leave a part of heat, and then enter charging hopper and molding sand carries out secondary heat exchange.Make the time of cooling fluid in hollow tube longer like this, make molding sand and cooling fluid to carry out twice heat exchange, make heat exchange more abundant, further increase cooling effectiveness.
Preferred version two, based on scheme one improve, described cooling fluid is the water of temperature below 30 degrees Celsius.The water of less than 30 degrees Celsius be most convenient take make cost low, and specific heat of water holds and can reach 4200J/ (Kg. DEG C) and can absorb heat energy in molding sand in a large number, further increases cooling effectiveness.
Preferred version three, based on the one of scheme or preferred version one or preferred version two improve, described hollow tube is made of aluminum.Under same condition, the thermal conductivity of aluminium is only second to silver and copper, and aluminium is conventional industrial materials, compares with the cost performance of other materials of aluminum better, greatly reduces cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1 of the present utility model.
Detailed description of the invention
Below by detailed description of the invention, the utility model is described in further detail:
Embodiment 1, as shown in Figure 1: a kind of windmill molding sand cooling device, comprises charging hopper 1, low-temperature receiver 3, storage tank.The upper end of described charging hopper 1 is provided with charging aperture 5, and the lower end of charging hopper 1 is provided with discharging opening 7, and described charging hopper 1 is rectangular box; The sidewall of charging hopper 1 is interspersed with the hollow tube 2 that multiple-layer horizontal direction is arranged, and described hollow tube 2 is made of aluminum.Every layer is distributed with some hollow tubes 2, has gap between hollow tube 2; The two ends of described hollow tube 2 reach outside charging hopper 1; One end of described hollow tube 2 is connected with low-temperature receiver 3, and the other end is connected with storage tank.Described hollow tube 2 is U-shaped pipe, and the bending part of U-shaped pipe is positioned at the outside of charging hopper 1.Also comprise the support be fixed on the sidewall of charging hopper 1 top one, described support has two, is fixed with rotating shaft between support, and in described rotating shaft, hoop is evenly distributed with rectangular paddle plate, and described rectangular paddle plate is positioned at the below of charging aperture 7; Oblique support bar is connected with between described support and sidewall.Described rectangular paddle plate and rotating shaft form windmill 4.
In the present embodiment, during operation, high temperature molding sand 6 after screening is poured in charging hopper 1 by conveyer belt 8 and stores, high temperature molding sand 6 enters charging hopper 1 from charging aperture 5 and drops on the vane plate of windmill 4, because the impact that molding sand 6 is downward makes windmill 4 rotate, windmill 4 makes the flowing of the air in charging hopper 1 carry out air-cooled to molding sand 6, slows down the speed that molding sand 6 falls simultaneously, the impulsive force of molding sand 6 pairs of hollow tubes 2 is reduced, ensure that the service life of hollow tube 2.The gap that the molding sand 6 fallen fills up between hollow tube 2 fully contacts with the outer wall of hollow tube 2, then in hollow tube 2, is filled with water by low-temperature receiver 3.Water carries out first time heat exchange by hollow tube 2 and molding sand 6 makes the temperature of molding sand 6 reduce, water after heat exchange carries out heat exchange at the bending part of U-shaped pipe and the external world and to leave a part of heat, and then enter charging hopper 1 and carry out secondary heat exchange with molding sand 6, then flow out from the other end of hollow tube 2.Continue in hollow tube 2, be filled with water and make molding sand 6 continued down until molding sand 6 cools.Make the time of water in hollow tube 2 longer like this, make molding sand 6 and water to carry out twice heat exchange, make heat exchange more abundant, further increase cooling effectiveness.Cooled molding sand 6 can take out by discharging opening 7 casting be directly used in next time.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (4)
1. a windmill molding sand cooling device, comprises charging hopper, low-temperature receiver, storage tank, the upper end of described charging hopper is provided with charging aperture, and the lower end of charging hopper is provided with discharging opening, described charging hopper is rectangular box, and the bottom angled of charging hopper is arranged, and described discharging opening is positioned at the side of charging hopper bottom low side; It is characterized in that, the sidewall of charging hopper is interspersed with the hollow tube that multiple-layer horizontal direction is arranged, and every layer is distributed with some hollow tubes, has gap between hollow tube; The two ends of described hollow tube reach outside charging hopper, and one end of hollow tube is connected with low-temperature receiver, and the other end is connected with storage tank; Also comprise the support be fixed on the sidewall of charging hopper top one, described support has two, windmill is fixed with between support, described windmill comprises two ends and is fixed in the equally distributed rectangular paddle plate of hoop in rotating shaft on support and rotating shaft respectively, and described rectangular paddle plate is positioned at the below of charging hopper charging aperture; Oblique support bar is connected with between described support and sidewall.
2. windmill molding sand cooling device according to claim 1, is characterized in that, described hollow tube is U-shaped pipe, and the bending part of U-shaped pipe is positioned at the outside of charging hopper.
3. windmill molding sand cooling device according to claim 1, is characterized in that, described cooling fluid is the water of temperature below 30 degrees Celsius.
4., according to the arbitrary described windmill molding sand cooling device of claims 1 to 3, it is characterized in that, described hollow tube is made of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632566.6U CN204934492U (en) | 2015-08-21 | 2015-08-21 | A kind of windmill molding sand cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520632566.6U CN204934492U (en) | 2015-08-21 | 2015-08-21 | A kind of windmill molding sand cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204934492U true CN204934492U (en) | 2016-01-06 |
Family
ID=55001948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520632566.6U Expired - Fee Related CN204934492U (en) | 2015-08-21 | 2015-08-21 | A kind of windmill molding sand cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204934492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436030A (en) * | 2018-03-20 | 2018-08-24 | 李同贵 | Environment-friendly type molding sand cools down retracting device |
-
2015
- 2015-08-21 CN CN201520632566.6U patent/CN204934492U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436030A (en) * | 2018-03-20 | 2018-08-24 | 李同贵 | Environment-friendly type molding sand cools down retracting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105108057A (en) | Windmill molding sand cooling device | |
| CN105499504B (en) | A kind of technique of lost foam casting wearing piece | |
| CN103147120B (en) | A kind of device for directionally solidifying of superalloy | |
| CN106799469B (en) | A kind of preparation method of the compound sand core of permanent mold casting | |
| CN204934492U (en) | A kind of windmill molding sand cooling device | |
| CN201728358U (en) | Fired mold precision casting type shell quick-cooling device | |
| CN105108058A (en) | Molding sand cooling device | |
| CN103909216B (en) | A kind of Lost Form Casting Production Line sand preparing system | |
| CN204934490U (en) | A kind of horizontal molding sand cooling device | |
| CN203155942U (en) | Quickly cooled silica gel mould | |
| CN202951845U (en) | Hub feeding gating system | |
| CN105033174A (en) | Spiral molding sand cooling device | |
| CN104014742A (en) | Casting process and casting mould of large propeller hub body | |
| CN204934491U (en) | A kind of molding sand cooling device | |
| CN105081210A (en) | Transverse sand cooling device | |
| CN108339945B (en) | Casting mold and casting method for large disc type complex structure parts | |
| CN203235927U (en) | Ingot casting device solidifying steel ingots sequentially from bottom to top | |
| CN204122691U (en) | A kind of novel casting fusible pattern | |
| CN204934493U (en) | A kind of spiral molding sand cooling device | |
| CN114559623A (en) | Mold cooling device for machine manufacturing production | |
| CN208214225U (en) | A kind of chill structure solving casting and chill contact surface stomata | |
| CN111842786A (en) | Sand warehouse with cooling function for lost foam casting | |
| CN106734971A (en) | A kind of easy mold release high-efficiency environment friendly casting device | |
| CN203155943U (en) | Water-cooled casting molding device utilizing evanescent mode | |
| CN206509473U (en) | A kind of metal pattern cast for wind-power electricity generation fan blade |
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: 20160106 Termination date: 20160821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |