CN104722711B - Local cooling water spraying device for investment casting shell and preparation method of device - Google Patents
Local cooling water spraying device for investment casting shell and preparation method of device Download PDFInfo
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- CN104722711B CN104722711B CN201510155247.5A CN201510155247A CN104722711B CN 104722711 B CN104722711 B CN 104722711B CN 201510155247 A CN201510155247 A CN 201510155247A CN 104722711 B CN104722711 B CN 104722711B
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- water
- local cooling
- cooling water
- assembly
- steel plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a local cooling water spraying device for an investment casting shell. The device comprises a grid supporting rack which is provided with a plurality of assemblies for a water spraying unit to pass through and fixed, wherein an elastic unit penetrating through the assemblies on the upper part is arranged below one of the assemblies, the lower part of the elastic unit corresponds to a proximity switch, and the proximity switch is connected with an electromagnetic valve and a pipeline pump of the water spray unit through a lead; the elastic unit comprises a U-shaped support fixedly arranged on the lower surface of the assembly, a spring is fixed at the inner bottom of the U-shaped support, the upper end of the spring is fixedly connected with an elastic piece which is mounted in the assembly and is higher than the assembly, a connecting rod which extends downward and penetrates through the spring and the bottom of the U-shaped support is fixed on the lower surface of the elastic piece, and the lower end of the connecting rod corresponds to the proximity switch. The invention further discloses a preparation method of the water spraying device. The local cooling water spraying device disclosed by the invention is simple in structure and convenient to operate and maintain, and can spray water to and cool isolated hot spots of castings in different heights.
Description
Technical field
The present invention relates to a kind of model casting cast shell Local cooling water injector and preparation method thereof.
Background technology
In full form casting process, shrinkage cavity（Pine）It is one of modal defect of investment-casting, shrinkage cavity（Pine）Prevent can
With using simultaneous solidification and consecutive solidification method.Consecutive solidification method control when should ensure that foundry goods in process of setting to feeding constituent element
Direction forms certain positive temperature gradient distribution, and the cooldown rate of solidification starting point should be more greatly.Simultaneous solidification should be kept away when controlling
Exempt from isolated thermal center.For being difficult to arrange the isolated thermal center of ingate and rising head, should manage to improve the solidification cooling at this.?
In sand casting, isolated thermal center can arrange interior external chill to improve its solidification cooling.But for model casting, due to type
Shell is through high-temperature roasting, and shell is poured into a mould at high operating temperatures, and in roasting process, chill easily aoxidizes, the heat absorption effect of high temperature chill
Rate is also poor;Next to that the isolated thermal center of some foundry goods in middle part it is impossible to get wet by shell to realize isolated thermal center
The setting rate at place controls；Therefore investment-casting isolates a process often stubborn problem of thermal center.
Content of the invention
The purpose of the present invention is for overcoming above-mentioned the deficiencies in the prior art, providing a kind of model casting cast shell local cold
But water injector and preparation method thereof, this apparatus structure is simple, operation and easy to maintenance, substantially increases casting quality.
For achieving the above object, the present invention adopts following technical proposals：
A kind of model casting pours into a mould shell Local cooling water injector, including a grid-like bracing frame, on support frame as described above
It is provided with the assembly that some confession water spray unit pass through and can be fixed, be provided with a top below one of which assembly and pass through this
The Flexible element of assembly, Flexible element bottom is corresponding with a proximity switch, and proximity switch passes through the electricity of wire and water spray unit
Magnet valve is connected with pipeline pump；
Described Flexible element includes a U-shaped support being fixed on assembly lower surface, and U-shaped support inner bottom part fixes a bullet
Spring, spring upper end is installed in assembly with one and exceeds the shell fragment bottom of assembly and is fixedly linked, shell fragment lower surface is fixed one to
The lower connecting rod extending and passing through spring and U-shaped support bottom, connecting rod lower end is corresponding with proximity switch.
Support frame as described above includes latticed supporting surface and is fixed on the supporting leg of latticed supporting surface bottom.
Described some inter-modules are on the centrage being fixedly installed on latticed supporting surface length direction.
Described assembly is elongate steel plate, and steel plate length direction is provided with the groove of up/down perforation.
Described shell fragment is installed in described groove, and under normal condition, shell fragment upper end exceeds upper surface of steel plate, shell fragment lower end one
Partially below lower surface of steel plate.
Described water spray unit includes some universal water pipes through assembly, and universal water pipe is connected on water knockout drum, water knockout drum
Water inlet pass through pipeline UNICOM to storage tank, described pipeline is respectively arranged with electromagnetic valve and pipeline pump.
The top surface of described storage tank is above ground level, and storage tank is provided with tap water filling pipe.
Water leg is provided with the ground of support frame as described above bottom, water leg is communicated with storage tank by return pipe.
One steel disc is fixed with the lower end of described connecting rod.
A kind of model casting pours into a mould the preparation method of shell Local cooling water injector, comprises the following steps：
1）With screw-thread steel and angle bar welding bracing frame, the supporting surface of bracing frame is latticed, makees propping up of bracing frame with angle bar
Support leg；
2）It is spaced the steel plate that groove is cut in some pieces of centres of welding in supporting surface length direction middle part successively；
3）A U-shaped support is welded wherein, in the built-in spring of U-shaped support, spring one below the groove of one block of steel plate
End is fixed with U-shaped support bottom, the other end with the groove being installed on steel plate and exceed the shell fragment bottom of steel plate and be fixedly connected, bullet
In the middle of piece lower surface, welding extends downwardly and passes through the connecting rod of spring and U-shaped support bottom, and the connecting rod other end welds a steel
Piece；
4）A water knockout drum is provided below in steel plate one side stand component, water knockout drum surrounding and top pick out a universal water respectively
Pipe, water knockout drum connects with steel tube storage tank, steel pipe is provided with electromagnetic valve and pipeline pump, and water storage box top is above ground level, storage
Tap water filling pipe is arranged on water tank；
5）Place water leg to patch below bracing frame, water leg is by return pipe UNICOM to storage tank；
6）A normally opened proximity switch corresponding with connecting rod steel disc is fixed, proximity switch is respectively below U-shaped support centre
It is connected with electromagnetic valve and pipeline pump.
During present invention application, when the shell fragment on bracing frame is depressed by shell, connecting rod is contacted with proximity switch, is also turned on
Electromagnetic valve and the control circuit of pipeline pump (with reference to isg40-125A type), start water system, realize shell is sprayed water, it is right to reach
Foundry goods isolates the purpose that thermal center improves rate of cooling.
Present configuration is simple, is easy to operation and maintenance, according to Production requirement, can change the universal water pipe of different length,
Realize the water-spraying control of the isolated thermal center to differing heights foundry goods.
Brief description
Fig. 1 is the structure schematic front view of the present invention；
Fig. 2 is the partial enlarged drawing of linked system in Fig. 1；
Fig. 3 is the concrete schematic diagram of bracing frame in Fig. 1；
Fig. 4 is proximity switch, electromagnetic valve, the circuit diagram of pipeline pump；
Fig. 5 is to simulate the isolated thermal center to foundry goods to carry out water-spraying control.
Wherein 1, shell fragment, 2, spring, 3, U-shaped support, 4, proximity switch, 5, connecting rod, 6, conduit switch, 7, water knockout drum
8th, electromagnetic valve, 9, universal water pipe, 10, water leg, 11, tap water filling pipe, 12, pipeline pump 13, supporting surface, 14, bracing frame,
15th, steel plate, 16, groove, 17, supporting leg, 18 reducings switches, 19, storage tank, 20, return pipe.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As Figure 1-Figure 5, model casting cast shell Local cooling water injector, including a grid-like bracing frame 14,
The assembly that some confession water spray unit pass through and can be fixed is provided with support frame as described above 14, arranges below one of which assembly
A top is had to pass through the Flexible element of this assembly, Flexible element bottom is corresponding with a proximity switch 4, proximity switch 4 passes through to lead
Line is connected with the electromagnetic valve 8 of water spray unit and pipeline pump 12；
Flexible element includes a U-shaped support 3 being fixed on assembly lower surface, and U-shaped support 3 inner bottom parts fix a spring 2,
Spring 2 upper end extends upward above assembly, and the shell fragment 1 exceeding assembly with is fixedly linked, and shell fragment 1 lower surface fixes one
Extend downwardly and pass through spring 2 and the U-shaped connecting rod 5 supporting 3 bottoms, connecting rod 5 lower end is corresponding with proximity switch 4.
Bracing frame 14 includes latticed supporting surface 13 and the supporting leg 17 being fixed on latticed supporting surface bottom.Some assemblies
Interval is fixedly installed on the centrage of latticed supporting surface 13 length direction.Assembly is elongate steel plate 15, and steel plate 15 is long
Degree direction is provided with the groove 16 of up/down perforation.
Water spray unit includes some universal water pipes 9 through assembly, and universal water pipe 9 is respectively arranged with conduit switch 6 He
Reducing switch 18, universal water pipe 9 is connected on water knockout drum 7, and the water inlet of water knockout drum 7 passes through pipeline UNICOM to storage tank 19, institute
State and electromagnetic valve 8 and pipeline pump 12 are respectively arranged with pipeline.
The top surface of storage tank 19 is above ground level, and storage tank 19 is provided with tap water filling pipe 11.Bracing frame 14 bottom
Water leg 10 is provided with ground, water leg 10 is communicated with storage tank 19 by return pipe 20.It is fixed with the lower end of connecting rod 5
One steel disc.
Preparation model casting pours into a mould an example of shell Local cooling water injector：
First, it is that the welding of 50mm*50mm angle bar is grown as shown in Figure 3 with the screw-thread steel of a diameter of ∮ 14mm and cross dimensions a width of
The bracing frame 14 of 2000mm*470mm（Can lengthen according to producing needs）, the supporting surface 13 of bracing frame 14 is well subformat, well
Lattice length and width size is 100mm*100mm, is that supporting leg 17 made by 50mm*50mm angle bar with cross dimensions（Periphery arranges 6）, highly
For 400mm（As shown in Figure 3）；Weld 3 pieces in supporting surface length direction middle part successively（Can increase according to producing needs）As
The a width of 100mm*240mm thickness of long * shown in Fig. 3 is 5mm, and the steel plate 15 of wide * a length of 3mm*200mm groove 16, steel are cut in centre
Plate 15 is spaced 320mm.
2nd, make linkage.As shown in Fig. 2 weld a height below groove 16 on steel plate 15 for 100mm width being
The U-shaped support 3 of 100mm, supports 3 built-in free heights to be the spring 2 of 50mm steel wire diameter 1mm for 90mm central diameter U-shaped,
Spring one end is fixed with U-shaped support 3 bottoms, and shell fragment 1 bottom of a length of 3mm*20mm*200mm of other end * high with wide * is fixed,
Spring, in the U-bracket below steel plate, is not passed through groove, and shell fragment exceeds steel plate 5mm, shell fragment total height 20mm, and steel plate is convex
Play 5mm, steel plate 5mm thickness is that is to say, that shell fragment also protrudes into 10mm in U-bracket, plus spring free height 90mm is exactly that U-shaped props up
Frame height 100mm, so spring is free state.In the middle of shell fragment lower surface, welding extends downwardly and passes through spring and U-shaped support
One length of bottom is the connecting rod 5 of a diameter of 10mm of 100mm, a height of 10mm* of the long * width * of connecting rod 5 other end welding one
10mm*2mm steel disc.
3rd, water supply installation.A clematis stem water knockout drum 7, water knockout drum are provided below in steel plate one side stand component as shown in Fig. 1 Fig. 2
Surrounding and top pick out a universal water pipe 9 respectively（Universal water pipe length needs to select according to production）, universal water pipe 9 sets respectively
It is equipped with conduit switch 6 and reducing switch 18, water knockout drum 7 uses ∮ 215 fastener for connection to storage tank 19（Size is as schemed）（With thickness it is
5mm steel plate welds）, setting electromagnetic valve 8 and pipeline pump 12, storage tank 19 top 100mm above ground level on steel pipe.Set on storage tank
Put tap water filling pipe 11.
4th, water recovery apparatus.The water leg 10 of patch ground placing height 50mm below bracing frame, hydrops are flowed into by return pipe 20
Storage tank 19.
5th, spray water control system.Fix a normally opened proximity switch 4 at lower section 17mm in the middle of spring support 3, proximity switch with
Electromagnetic valve 8, pipeline pump 12 connect.
When the shell fragment 1 on bracing frame 14 is depressed by shell, connecting rod 5 is connected with proximity switch 4, is also turned on electromagnetic valve 8 He
Pipeline pump 12 (with reference to isg40-125A type), starts water system, realizes shell is sprayed water, and reaches the isolated thermal center to foundry goods and carries
The purpose of high rate of cooling.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not model is protected to the present invention
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay the various modifications that creative work can make or deformation still within protection scope of the present invention.
Claims (10)
1. a kind of model casting pours into a mould shell Local cooling water injector, it is characterized in that, including a grid-like bracing frame, described
The assembly that some confession water spray unit pass through and can be fixed is provided with support, below one of which assembly, is provided with a top
Through the Flexible element of this assembly, Flexible element bottom is corresponding with a proximity switch, and it is single with water spray that proximity switch passes through wire
The electromagnetic valve of unit is connected with pipeline pump；Described Flexible element includes a U-shaped support being fixed on assembly lower surface, U-shaped support
Inner bottom part fixes a spring, and spring upper end is installed in assembly with one and exceeds the shell fragment bottom of assembly and is fixedly linked, under shell fragment
Fix one on surface to extend downwardly and pass through the connecting rod of spring and U-shaped support bottom, connecting rod lower end is relative with proximity switch
Should.
2. model casting as claimed in claim 1 pours into a mould shell Local cooling water injector, it is characterized in that, support frame as described above bag
Purse rope trellis supporting surface and the supporting leg being fixed on latticed supporting surface bottom.
3. model casting as claimed in claim 2 pours into a mould shell Local cooling water injector, it is characterized in that, described some assemblies
Interval is fixedly installed on the centrage of latticed supporting surface length direction.
4. model casting as claimed in claim 1 pours into a mould shell Local cooling water injector, it is characterized in that, described assembly is length
Bar steel plate, and steel plate length direction is provided with the groove of up/down perforation.
5. model casting as claimed in claim 4 pours into a mould shell Local cooling water injector, it is characterized in that, described shell fragment is installed
In described groove, under normal condition, shell fragment upper end exceeds upper surface of steel plate, and a shell fragment lower end part is less than lower surface of steel plate.
6. model casting as claimed in claim 1 pours into a mould shell Local cooling water injector, it is characterized in that, described water spray unit
Including some universal water pipes through assembly, universal water pipe is connected on water knockout drum, and the water inlet of water knockout drum passes through pipeline UNICOM
To storage tank, described pipeline is respectively arranged with electromagnetic valve and pipeline pump.
7. model casting as claimed in claim 6 pours into a mould shell Local cooling water injector, it is characterized in that, described storage tank
Top surface is above ground level, and storage tank is provided with tap water filling pipe.
8. model casting as claimed in claim 6 pours into a mould shell Local cooling water injector, it is characterized in that, under support frame as described above
Water leg is provided with the ground in portion, water leg is communicated with storage tank by return pipe.
9. model casting as claimed in claim 1 pours into a mould shell Local cooling water injector, it is characterized in that, described connecting rod
One steel disc is fixed with lower end.
10. a kind of model casting pours into a mould the preparation method of shell Local cooling water injector, it is characterized in that, comprises the following steps：
1）With screw-thread steel and angle bar welding bracing frame, the supporting surface of bracing frame is latticed, makees the supporting leg of bracing frame with angle bar；
2）It is spaced the steel plate that groove is cut in some pieces of centres of welding in supporting surface length direction middle part successively；
3）A U-shaped support is welded wherein, in the built-in spring of U-shaped support, spring one end and U below the groove of one block of steel plate
Type supports bottom to fix, the other end with the groove being installed on steel plate and exceed the shell fragment bottom of steel plate and be fixedly connected, under shell fragment
In the middle of surface, welding extends downwardly and passes through the connecting rod of spring and U-shaped support bottom, and the connecting rod other end welds a steel disc；
4）A water knockout drum is provided below in steel plate one side stand component, water knockout drum surrounding and top pick out a universal water pipe respectively, point
Hydrophone connects with steel tube storage tank, and steel pipe is provided with electromagnetic valve and pipeline pump, and water storage box top is above ground level, on storage tank
Setting tap water filling pipe；
5）Place water leg to patch below bracing frame, water leg is by return pipe UNICOM to storage tank；
6）Fix a normally opened proximity switch corresponding with connecting rod steel disc below U-shaped support centre, proximity switch respectively with electricity
Magnet valve and pipeline pump connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155247.5A CN104722711B (en) | 2015-04-03 | 2015-04-03 | Local cooling water spraying device for investment casting shell and preparation method of device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155247.5A CN104722711B (en) | 2015-04-03 | 2015-04-03 | Local cooling water spraying device for investment casting shell and preparation method of device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104722711A CN104722711A (en) | 2015-06-24 |
| CN104722711B true CN104722711B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510155247.5A Active CN104722711B (en) | 2015-04-03 | 2015-04-03 | Local cooling water spraying device for investment casting shell and preparation method of device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482818A (en) * | 2018-12-14 | 2019-03-19 | 山西天海泵业有限公司 | Model casting locally dips in water-cooling method |
| CN111215579A (en) * | 2020-01-10 | 2020-06-02 | 湖州南丰机械制造有限公司 | Casting process for preventing internal continuous thermal joint shrinkage cavity |
| CN112916805B (en) * | 2021-01-14 | 2022-10-18 | 万泰和汽车材料（武汉）有限公司 | Molten aluminum casting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7779892B2 (en) * | 2007-05-09 | 2010-08-24 | United Technologies Corporation | Investment casting cores and methods |
| CN103506575A (en) * | 2013-03-29 | 2014-01-15 | 洛阳洛北重工机械有限公司 | Casting technique of coal mining machine casting evanescent mould of |
| CN203751235U (en) * | 2013-12-26 | 2014-08-06 | 浙江工商职业技术学院 | Tooth mold of drum type wheel foam mold |
| CN204584188U (en) * | 2015-04-03 | 2015-08-26 | 莱芜市泰钢新材料有限责任公司 | Model casting cast shell Local cooling water injector |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 271100 west head, West Avenue, Laiwu, Shandong Applicant after: Yanshan Laiwu New Material Co., Ltd. Address before: 271100 west head, West Avenue, Laiwu, Shandong Applicant before: Laiwu Taigang Investment Casting Co., Ltd. |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Yongsheng Inventor after: Lv Xuejin Inventor after: Hu Anjun Inventor after: Cao Naihong Inventor after: Wang Kai Inventor after: Bo Junhai Inventor after: Zhang Chengfang Inventor before: Lv Xuejin Inventor before: Hu Anjun Inventor before: Cao Naihong Inventor before: Wang Kai Inventor before: Bo Junhai Inventor before: Zhang Chengfang |
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| COR | Change of bibliographic data | ||
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| GR01 | Patent grant |