CN207941932U - Compressor casing sand core negative pressure air entraining device - Google Patents
Compressor casing sand core negative pressure air entraining device Download PDFInfo
- Publication number
- CN207941932U CN207941932U CN201721915320.5U CN201721915320U CN207941932U CN 207941932 U CN207941932 U CN 207941932U CN 201721915320 U CN201721915320 U CN 201721915320U CN 207941932 U CN207941932 U CN 207941932U
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- pressure air
- entraining device
- air entraining
- sand core
- 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
- 238000005266 casting Methods 0.000 claims abstract description 17
- 238000013022 venting Methods 0.000 claims description 22
- 230000007547 defect Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Casting Devices For Molds (AREA)
Abstract
The utility model discloses a kind of compressor casing sand core negative pressure air entraining device, including casting machine, the top of the casting machine is equipped with mold, is provided with mold cavity in the mold, the mold cavity is communicated with negative pressure air entraining device.The compressor casing sand core negative pressure air entraining device of the utility model, compared with casting process is vented naturally, this mode exhaust effect is more preferable, contributes to the defect for solving product air holes, substantially increases product quality, reasonable for structure, easy to operate, is easy to use.
Description
Technical field
The utility model is related to a kind of compressor casing casting process auxiliary smoke discharging devices, specifically, are related to one kind and calm the anger
Casing sand core negative pressure air entraining device, belongs to casting technology field.
Background technology
Compressor casing blank is by the way of metal mold gravitational casting at present, and external mold is metal mold, and product cavity is by overlay film
Sand sand core is formed, and when carrying out compressor casing cast, sand core is heated to will produce gas, and the gas of generation passes through the exhaust on mold
Plug discharge cavity, for the more complex pressure shell of product structure, sand core is relatively complicated, and the gas forming amount bigger of casting process is poured
It is more difficult completely by the venting plug natural excrement on mold to note process gas, thus is easy to cause product and gas hole defect occurs, it is existing
There is technology that can not solve the problems, such as this.
In summary, the existing technology has inconveniences and defects in actual use, so it is necessary to be improved.
Invention content
The technical problems to be solved in the utility model is to provide a kind of compressor casing sand core negative pressure bleed for the above deficiency
Device, can be more preferable with exhaust effect, contributes to the defect for solving product air holes, substantially increases product quality, reasonable for structure, behaviour
Facilitate, is easy to use.
In order to solve the above technical problems, the utility model uses following technical scheme：Compressor casing sand core negative pressure bleed fills
It sets, including casting machine, the top of the casting machine is equipped with mold, and mold cavity, the mold cavity are provided in the mold
It is communicated with negative pressure air entraining device.
A kind of prioritization scheme, the negative pressure air entraining device are three way type structure.
Further, the pipe diameter of the three way type structure of the negative pressure air entraining device is φ 20mm.
Further, the negative pressure air entraining device includes air inlet, exhaust outlet and air entry, and the air inlet connects high pressure
Gas, the exhaust outlet are connected to mold cavity for the high pressure gas that air inlet is passed through, the air entry to be discharged.
Further, air entry connection die venting road is connected to mold cavity.
Further, it is provided with the sprue gate being connected to mold cavity at the top of the mold, mould is equipped in the mold
Has exhaust duct, the die venting road is connected to mold cavity, and the die venting road is connected to negative pressure air entraining device.
Further, it is connected to by die venting slot between the die venting road and mold cavity.
Further, the inlet port pipeline is 2-3 times of exhaust port side duct length.
The utility model after the above technical solution is adopted, compared with prior art, has the following advantages：
For the utility model compared with casting process is vented naturally, this mode exhaust effect is more preferable, helps to solve product gas
The defect in hole substantially increases product quality, reasonable for structure, easy to operate, is easy to use.
The utility model is described in detail with reference to the accompanying drawings and examples.
Description of the drawings
Fig. 1 is compressor casing gravity-assist pouring machine and mold assembling schematic diagram；
Fig. 2 is the structural schematic diagram of compressor casing sand core negative pressure air entraining device；
In figure,
1- casting machines, 2- molds, 3- negative pressure air entraining device air inlets, 4- negative pressure air entraining device exhaust outlets, 5- negative pressure bleeds
Device air entry, 6- die ventings road, 7- die venting slots, the sprue gates 8-.
Specific implementation mode
For a clearer understanding of the technical features, objectives and effects of the utility model, existing control description of the drawings
Specific embodiment of the present utility model.
A kind of 1 compressor casing sand core negative pressure air entraining device of embodiment
The utility model provides a kind of compressor casing sand core negative pressure air entraining device, including casting machine 1, the casting machine 1
Top is equipped with mold 2, be provided with mold cavity in the mold 2, and the top of the mold 2 is provided with to be connected to mold cavity
Sprue gate 8.It is equipped with die venting road 6 in the mold 2, passes through die venting between the die venting road 6 and mold cavity
Slot 7 is connected to.The die venting road 6 is communicated with negative pressure air entraining device.
The negative pressure air entraining device is three way type structure, and a diameter of φ 20mm of three-way pipe, the negative pressure air entraining device includes
Air inlet 3, exhaust outlet 4 and air entry 5.The air inlet 3 connects high pressure gas, and the exhaust outlet 4 is logical for air inlet 3 to be discharged
The high pressure gas entered, the air entry 5 are connected to die venting road 6.
3 end pipe road of the air inlet is 2-3 times of 4 end duct length of exhaust outlet.
1 is compressor casing gravity-assist pouring machine in figure, and compressor casing mold 2 is placed in top, and negative pressure is connected below mold 2 and is drawn
Device of air, this device is three way type, including the air inlet 3 of negative pressure air entraining device, the exhaust outlet 4 of negative pressure air entraining device, negative pressure draw
The air entry 5 of device of air, the air inlet 3 connect high pressure gas, and the high pressure gas of entrance is discharged by exhaust outlet 4, in high pressure
The lower air entry of gas effect 5 can form negative pressure, the die venting road 6 of 5 connecting mold of air entry, 2 lower section, molten aluminum in casting process
Mold cavity is injected from sprue gate 8, sand core, which touches, at this time can send out more gas after high temperature aluminum water, and gas is from die venting
Slot 7 enters die venting road 6, forces to be discharged by this gas under the action of negative pressure, can effectively reduce product air holes defect
Occur.
For the utility model compared with casting process is vented naturally, this mode exhaust effect is more preferable, helps to solve product gas
The defect in hole substantially increases product quality, reasonable for structure, easy to operate, is easy to use.
The above is the citing of the utility model preferred forms, wherein the part that do not address in detail is this field
The common knowledge of those of ordinary skill.The scope of protection of the utility model is based on the contents of the claims, any to be based on this reality
The equivalent transformation carried out with novel technical inspiration is also within the protection scope of the utility model.
Claims (8)
1. compressor casing sand core negative pressure air entraining device, it is characterised in that：Including casting machine（1）, the casting machine（1）Top set
There is mold（2）, the mold（2）It is inside provided with mold cavity, the mold cavity is communicated with negative pressure air entraining device.
2. compressor casing sand core negative pressure air entraining device as described in claim 1, it is characterised in that：The negative pressure air entraining device is
Three way type structure.
3. compressor casing sand core negative pressure air entraining device as described in claim 1, it is characterised in that：The negative pressure air entraining device
The pipe diameter of three way type structure is φ 20mm.
4. compressor casing sand core negative pressure air entraining device as described in claim 1, it is characterised in that：The negative pressure air entraining device packet
Include air inlet（3）, exhaust outlet（4）And air entry（5）, the air inlet（3）Connect high pressure gas, the exhaust outlet（4）For
Air inlet is discharged（3）The high pressure gas being passed through, the air entry（5）It is connected to mold cavity.
5. compressor casing sand core negative pressure air entraining device as claimed in claim 4, it is characterised in that：The air entry（5）Connection
Die venting road（6）It is connected to mold cavity.
6. compressor casing sand core negative pressure air entraining device as described in claim 1, it is characterised in that：The mold（2）Top
It is provided with the sprue gate being connected to mold cavity（8）, the mold（2）It is interior to be equipped with die venting road（6）, the die venting road
（6）It is connected to mold cavity, the die venting road（6）It is connected to negative pressure air entraining device.
7. compressor casing sand core negative pressure air entraining device as claimed in claim 6, it is characterised in that：The die venting road（6）
Pass through die venting slot between mold cavity（7）Connection.
8. compressor casing sand core negative pressure air entraining device as claimed in claim 4, it is characterised in that：The air inlet（3）End pipe
Road is exhaust outlet（4）Hold duct length 2-3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721915320.5U CN207941932U (en) | 2017-12-31 | 2017-12-31 | Compressor casing sand core negative pressure air entraining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721915320.5U CN207941932U (en) | 2017-12-31 | 2017-12-31 | Compressor casing sand core negative pressure air entraining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207941932U true CN207941932U (en) | 2018-10-09 |
Family
ID=63701282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721915320.5U Expired - Fee Related CN207941932U (en) | 2017-12-31 | 2017-12-31 | Compressor casing sand core negative pressure air entraining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207941932U (en) |
-
2017
- 2017-12-31 CN CN201721915320.5U patent/CN207941932U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |