CN214392249U - Gravity casting mold for aluminum alloy thin-wall shell casting - Google Patents
Gravity casting mold for aluminum alloy thin-wall shell casting Download PDFInfo
- Publication number
- CN214392249U CN214392249U CN202120318648.9U CN202120318648U CN214392249U CN 214392249 U CN214392249 U CN 214392249U CN 202120318648 U CN202120318648 U CN 202120318648U CN 214392249 U CN214392249 U CN 214392249U
- Authority
- CN
- China
- Prior art keywords
- water inlet
- alloy thin
- flow channel
- aluminum alloy
- liquid flow
- 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.)
- Active
Links
Images
Abstract
The utility model provides a gravity casting mould for aluminum alloy thin-wall shell castings, which comprises an upper mould, a lower mould and an ejection mechanism; a product cavity for accommodating an aluminum alloy thin-wall shell casting to be cast is formed between the upper die and the lower die; the left side and the right side of the lower die are both provided with water inlets, and the left water inlet and the right water inlet are arranged in an axisymmetric manner; the left water inlet and the right water inlet are respectively communicated with the product cavity through a left aluminum liquid flow channel and a right aluminum liquid flow channel; the left water inlet, the left aluminum liquid flow channel, the product cavity, the right aluminum liquid flow channel and the right water inlet form an omega-shaped structure integrally; and a riser is arranged on the upper die and is positioned in the center of the product cavity. The utility model discloses an aluminum alloy thin wall casing gravity casting mould for foundry goods is difficult for appearing cold shut, shrinkage cavity, and the feeding is effectual.
Description
Technical Field
The utility model relates to a gravity casting technique especially relates to a gravity casting mould that is used for casting aluminum alloy thin wall casing foundry goods product.
Background
Many processes are used to form metallic materials into desired articles, such as casting, forging, extruding, rolling, drawing, stamping, cutting, powder metallurgy, and the like. Among them, casting is the most basic, most common and widespread process.
The casting is divided into gravity casting and pressure casting according to the pouring process of molten metal. Gravity casting refers to a process of pouring molten metal into a casting mold under the action of earth gravity, and is also called casting. The molten metal is poured into a hollow mold made of a high-temperature resistant material under the action of gravity, and after condensation, a product with a desired shape is obtained, namely casting. The resulting article is a casting.
In the prior art, the defects of difficult casting molding, cold shut, shrinkage cavity and the like easily exist in the process of casting an aluminum alloy thin-wall shell product by gravity, and particularly the defects easily appear in a large thin-wall cast product with the length of 460mm, the width of 190mm, the height of 175mm and the wall thickness of only about 4 mm.
SUMMERY OF THE UTILITY MODEL
The utility model provides a casting moulding is effectual, is difficult for appearing cold shut, shrinkage cavity, and the effectual gravity casting mould for aluminum alloy thin wall casing foundry goods of feeding.
In order to achieve the above object, the utility model provides a following technical scheme: a gravity casting mould for an aluminum alloy thin-wall shell casting comprises an upper mould, a lower mould and an ejection mechanism; a product cavity for accommodating an aluminum alloy thin-wall shell casting to be cast is formed between the upper die and the lower die; the left side and the right side of the lower die are both provided with water inlets, and the left water inlet and the right water inlet are arranged in an axisymmetric manner; the left water inlet and the right water inlet are respectively communicated with the product cavity through a left aluminum liquid flow channel and a right aluminum liquid flow channel; the left water inlet, the left aluminum liquid flow channel, the product cavity, the right aluminum liquid flow channel and the right water inlet form an omega-shaped structure integrally; and a riser is arranged on the upper die and is positioned in the center of the product cavity.
A left water inlet and a right water inlet are arranged, and the two water inlets are arranged in an axisymmetric manner, so that aluminum liquid enters from two ends of the length direction of the model, the liquid rises for forming, a dead head is designed in the center of the top of the product, and oxide skin, slag, gas and the like entering the cavity can be discharged through the dead head; and simultaneously, the riser at the top can also play a certain feeding role. The riser is arranged at the central position, so that the aluminum liquid can be molded more uniformly, and the molding of a thin-wall product is facilitated.
Preferably, slag collecting bags are respectively arranged at the connecting positions of the left aluminum liquid flow channel and the right aluminum liquid flow channel and the product cavity. The connecting part of the runner and the product cavity is provided with the slag collecting bag, so that the slag collecting bag is positioned at a lower position and is favorable for collecting casting aluminum slag under the action of gravity.
Preferably, the ejection mechanism comprises a top plate and more than two ejector pins; one end of the ejector pin is fixed on the top plate, and the other end of the ejector pin is abutted to the slag collecting bag. The top plate drives the ejector pin to eject a product under the action of an external driving force, the other end of the ejector pin is abutted to the position of the slag collecting bag, and the slag collecting bag does not belong to the product, and the wall thickness of the position of the slag collecting bag is much thicker than that of other parts, so that the ejection defect cannot be generated.
Preferably, the upper die is provided with an upper die leg, and the lower die is provided with a lower die leg. The upper die leg and the lower die leg are favorable for demoulding of the upper die and the lower die.
Preferably, the upper die, the lower die, the ejection mechanism, the product cavity and the riser are all in an axisymmetric structure. The axial symmetry structure is beneficial to reducing the processing cost and is beneficial to forming thin-wall products.
Compared with the prior art, the beneficial effects of the utility model are that:
two water inlets are axially and symmetrically arranged, so that aluminum liquid enters from two ends of the length direction of the model, the liquid rises for forming, a riser is designed in the center of the top of the product, and oxide skin, slag, gas and the like entering the cavity can be discharged through the riser; and simultaneously, the riser at the top can also play a certain feeding role. The riser is arranged at the central position, so that the aluminum liquid can be molded more uniformly, and the molding of a thin-wall product is facilitated.
Drawings
Fig. 1 is a schematic external structural view of the present invention;
fig. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic sectional view taken along line A-A of FIG. 2;
fig. 4 is the structure schematic diagram of the utility model after pouring and when demoulding.
Detailed Description
The embodiment of the gravity casting mold for aluminum alloy thin-wall shell castings according to the present invention is further described with reference to fig. 1 to 4.
A gravity casting mould for an aluminum alloy thin-wall shell casting comprises an upper mould 1, a lower mould 2 and an ejection mechanism 3; a product cavity 4 for accommodating an aluminum alloy thin-wall shell casting to be cast is formed between the upper die 1 and the lower die 2; the left side and the right side of the lower die 2 are both provided with water inlets, and the left water inlet 21 and the right water inlet 22 are arranged in an axisymmetric manner; the left water inlet 21 and the right water inlet 22 are respectively communicated with the product cavity 4 through a left aluminum liquid runner 23 and a right aluminum liquid runner 24; the left water inlet 21, the left aluminum liquid runner 23, the product cavity 4, the right aluminum liquid runner 24 and the right water inlet 22 form an omega-shaped structure integrally; a riser 11 is arranged on the upper die 1, and the riser 11 is positioned at the center of the product cavity 4. The upper die 1, the lower die 2, the ejection mechanism 3, the product cavity 4 and the riser 11 are all in an axisymmetric structure. The axial symmetry structure is beneficial to reducing the processing cost and is beneficial to forming thin-wall products.
During pouring, aluminum liquid enters from the left water inlet 21 and the right water inlet 22 respectively, the two water inlets are arranged in an axisymmetric manner, so that the aluminum liquid enters from the two ends of the length direction of the model, the liquid rises for forming, the top center of the product is provided with the riser 11, and oxide skin, slag, gas and the like entering the cavity can be discharged through the riser 11; and the riser 11 at the top can also play a certain feeding role. The riser 11 is arranged at the central position, so that the aluminum liquid can be molded more uniformly, and the molding of a thin-wall product is facilitated.
And slag collecting bags 5 are respectively arranged at the joints of the left aluminum liquid flow channel 23 and the right aluminum liquid flow channel 24 and the product cavity 4. The slag collecting ladle 5 is positioned at a lower position, and is beneficial to collecting the casting aluminum slag under the action of gravity.
The ejection mechanism 3 comprises a top plate 31 and more than two ejector pins 32; one end of the thimble 32 is fixed on the top plate 31, and the other end of the thimble 32 is abutted against the slag collection bag 5.
After pouring is finished, the upper die 1 is moved away, the top plate 31 drives the ejector pin 32 to eject a product under the action of an external driving force, the other end of the ejector pin 32 abuts against the position of the slag collection bag 5, and the slag collection bag 5 does not belong to the product, and the wall thickness of the position of the slag collection bag 5 is much thicker than that of other parts, so that ejection defects cannot be generated.
The upper die 1 is provided with an upper die foot 6, and the lower die is provided with a lower die foot 7.
It should be understood that any modification, equivalent replacement, and improvement made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (5)
1. The utility model provides an aluminum alloy thin wall is gravity casting mould for casing foundry goods which characterized in that: the ejection mechanism comprises an upper die, a lower die and an ejection mechanism; a product cavity for accommodating an aluminum alloy thin-wall shell casting to be cast is formed between the upper die and the lower die; the left side and the right side of the lower die are both provided with water inlets, and the left water inlet and the right water inlet are arranged in an axisymmetric manner; the left water inlet and the right water inlet are respectively communicated with the product cavity through a left aluminum liquid flow channel and a right aluminum liquid flow channel; the left water inlet, the left aluminum liquid flow channel, the product cavity, the right aluminum liquid flow channel and the right water inlet form an omega-shaped structure integrally; and a riser is arranged on the upper die and is positioned in the center of the product cavity.
2. The gravity casting mold for aluminum alloy thin-walled shell castings according to claim 1, characterized in that: and slag collecting bags are respectively arranged at the positions where the left aluminum liquid flow channel and the right aluminum liquid flow channel are connected with the product cavity.
3. The gravity casting mold for aluminum alloy thin-walled shell castings according to claim 2, characterized in that: the ejection mechanism comprises a top plate and more than two ejector pins; one end of the ejector pin is fixed on the top plate, and the other end of the ejector pin is abutted to the slag collecting bag.
4. The gravity casting mold for aluminum alloy thin-walled shell castings according to claim 1, characterized in that: the upper die is provided with an upper die foot, and the lower die is provided with a lower die foot.
5. The gravity casting mold for aluminum alloy thin-walled shell castings according to claim 1, characterized in that: the upper die, the lower die, the ejection mechanism, the product cavity and the riser are all in an axisymmetric structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120318648.9U CN214392249U (en) | 2021-02-04 | 2021-02-04 | Gravity casting mold for aluminum alloy thin-wall shell casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120318648.9U CN214392249U (en) | 2021-02-04 | 2021-02-04 | Gravity casting mold for aluminum alloy thin-wall shell casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214392249U true CN214392249U (en) | 2021-10-15 |
Family
ID=78020484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120318648.9U Active CN214392249U (en) | 2021-02-04 | 2021-02-04 | Gravity casting mold for aluminum alloy thin-wall shell casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214392249U (en) |
-
2021
- 2021-02-04 CN CN202120318648.9U patent/CN214392249U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210590371U (en) | Quick refrigerated integral type lamp body shell injection moulding mould | |
| CN214392249U (en) | Gravity casting mold for aluminum alloy thin-wall shell casting | |
| CN211661053U (en) | Aluminum alloy die-casting die | |
| CN106623856A (en) | Method and device for improving quality of squeezing and casting piston casting | |
| CN105903927A (en) | Squeeze casting mold for automobile wheel hub | |
| CN216540775U (en) | High-yield aluminum alloy die-casting die | |
| CN106426789A (en) | Double-parting-surface structure die capable of achieving stable and rapid parting | |
| CN112658226B (en) | Unequal-thickness deep cavity shell type aluminum alloy component extrusion casting device and using method thereof | |
| CN211248270U (en) | Magnesium metal die casting die with supplementary alignment device just can collect waste material | |
| CN113927017A (en) | Sub vehicle frame aluminium low pressure casting mould | |
| CN108081558A (en) | A kind of injection mold and its method of work that can accelerate injecting products cooling and demolding | |
| CN215966244U (en) | Secondary die opening device of hydraulic metal die | |
| CN105834359A (en) | Casting mold of gravity casting machine | |
| CN213288624U (en) | Die casting die of ECU controller aluminum alloy shell | |
| CN211915436U (en) | High-precision arc magnesium alloy casting | |
| CN211588490U (en) | Die for producing magnesium alloy product | |
| CN214814648U (en) | Die casting machine is used in die casting production | |
| CN209110152U (en) | A kind of knife striking cylinder integral type die casting | |
| CN217831809U (en) | Prevent damaged ejecting structure of seal groove meat deficiency | |
| CN212792887U (en) | All-metal gravity casting mold for medium-sized thin-wall box-type aluminum castings | |
| CN213671756U (en) | Die-casting die capable of improving magnesium alloy forming quality | |
| CN217617651U (en) | External cooling feeding mechanism of gravity casting forming die for automobile aluminum alloy die castings | |
| CN219503717U (en) | Powder metallurgy die | |
| CN212792940U (en) | Improve die-casting device of boss structure foundry goods internal quality | |
| CN219211573U (en) | Sheet metal part die casting die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |