CN219648667U - Fixed-point vacuumizing mold for aluminum castings - Google Patents
Fixed-point vacuumizing mold for aluminum castings Download PDFInfo
- Publication number
- CN219648667U CN219648667U CN202321075888.6U CN202321075888U CN219648667U CN 219648667 U CN219648667 U CN 219648667U CN 202321075888 U CN202321075888 U CN 202321075888U CN 219648667 U CN219648667 U CN 219648667U
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- Prior art keywords
- fixed
- movable die
- die holder
- wall
- core
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 34
- 238000005266 casting Methods 0.000 title claims abstract description 30
- 238000004512 die casting Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model relates to a fixed-point vacuumizing mold for aluminum castings, which comprises a fixed mold base and a movable mold base; the inner wall of the fixed die holder is provided with a fixed die core, and the fixed die holder is provided with a feed inlet; the inner wall of the movable die holder is provided with a movable die core; the outer wall of the movable die holder is fixed with a support column, and the movable die holder is fixed on a moving part in the die casting machine through the support column; an oil cylinder is arranged on the outer wall of the movable die holder, and a push rod is fixed at the end part of a piston rod of the oil cylinder; the ejector rod penetrates through the inner wall and the outer wall of the movable die holder in a sliding manner, a through hole is formed in the position, opposite to the ejector rod, of the movable die core, the tail end of the ejector rod is fixed at the end part of a piston rod of the oil cylinder, the front end of the ejector rod is provided with a material ejection part, and the material ejection part is sleeved in the through hole; the ejector rod is sleeved with a sealing ring; an air outlet is arranged on the outer side wall of the movable die holder, and an exhaust groove is also arranged on the movable die holder. The utility model effectively ensures the compactness of the inside of the formed aluminum casting and improves the yield of products.
Description
Technical Field
The utility model relates to the technical field of aluminum casting processing, in particular to a fixed-point vacuumizing mold for an aluminum casting.
Background
Aluminum castings refer to devices and devices of pure aluminum or aluminum alloys obtained by casting processes. Aluminum or aluminum alloy parts of various shapes and sizes obtained by casting aluminum or aluminum alloy heated to a liquid state into a cavity using a sand mold or a metal mold are generally called aluminum die castings.
When the aluminum casting is die-cast, the protruding part of the thick meat at the tail end is not filled enough, the inside is loose, and shrinkage cavities and air holes exist; after the subsequent processing of the part, the air hole exposes the product poorly, and when the pressure is maintained by gas detection, the product leaks due to the loose inside the part.
Therefore, it is desirable to provide a fixed-point vacuum-pumping mold for aluminum castings, so as to solve the above technical problems.
Disclosure of Invention
The utility model aims to provide a fixed-point vacuumizing mold for aluminum castings, which effectively ensures the compactness of the inside of the molded aluminum castings and improves the yield of products.
In order to achieve the aim of the utility model, the fixed-point vacuumizing mould for the aluminum castings comprises a fixed mould base and a movable mould base;
a fixed mold core is arranged on the inner wall of the fixed mold base, a feed inlet is arranged on the fixed mold base, and the feed inlet is communicated with a runner in the fixed mold core; the fixed die seat is fixed in a fixing piece in the die casting machine;
the inner wall of the movable die holder is provided with a movable die core, the movable die core is matched with the fixed die core, and a flow passage of the movable die core and a flow passage of the fixed die core form a cavity for forming an aluminum casting; the outer wall of the movable die holder is fixedly provided with a support column, the movable die holder is fixed on a moving part in the die casting machine through the support column, and the movable die core is opposite to the fixed die core;
an oil cylinder is arranged on the outer wall of the movable die holder, and an ejector rod is fixed at the end part of a piston rod of the oil cylinder; the ejector rod penetrates through the inner wall and the outer wall of the movable die holder in a sliding mode, a through hole is formed in the position, opposite to the ejector rod, of the movable die core, the tail end of the ejector rod is fixed at the end part of a piston rod of the oil cylinder, the front end of the ejector rod is provided with a material ejection part, and the material ejection part is sleeved in the through hole; the ejector rod is sleeved with a sealing ring;
the air outlet is formed in the outer side wall of the movable die holder, the movable die holder is further provided with an air exhaust groove, one end of the air exhaust groove is communicated with a through hole in the movable die core, and the other end of the air exhaust groove is communicated with the air outlet.
Preferably, the number of the sealing rings is two.
Preferably, a steel sleeve is sleeved in the through hole of the movable mold core, and the ejection part of the ejector rod is sleeved in the steel sleeve in a sliding manner.
Compared with the prior art, the fixed-point vacuumizing mold for the aluminum castings has the advantages that:
(1) Before the aluminum casting is formed, the air outlet exhausts the air in the cavity formed by the movable mold core and the fixed mold core, and the compact internal structure of the formed product is effectively ensured by the action of the ejector rod, so that the air holes and shrinkage cavities are greatly reduced, and the yield of the product is effectively ensured;
(2) Simple structure and convenient use.
Drawings
Fig. 1 is a schematic structural diagram of a fixed die holder in the embodiment;
fig. 2 is a schematic structural view 1 of a movable die holder in the embodiment;
fig. 3 is a schematic structural view 2 of a movable die holder in the embodiment;
fig. 4 is an exploded view of the movable die holder in the embodiment;
fig. 5 is a schematic structural view of the ejector pin in the present embodiment;
fig. 6 is a schematic structural view of a fixed-point vacuum-pumping mold for aluminum castings according to the embodiment.
Detailed Description
The utility model is further described below with reference to the drawings and specific examples.
Examples
The fixed-point vacuumizing mold for the aluminum castings comprises a fixed mold base 1 and a movable mold base 4;
as shown in fig. 1, a fixed mold core 2 is mounted on the inner wall of the fixed mold seat 1, a feed inlet 3 is arranged on the fixed mold seat 1, and the feed inlet 3 is communicated with a runner in the fixed mold core 2; the fixed die seat 1 is fixed in a fixing piece in the die casting machine.
As shown in fig. 2, a movable mold core 5 is mounted on the inner wall of the movable mold base 4, the movable mold core 5 is matched with the fixed mold core 2, and a runner of the movable mold core 5 and a runner of the fixed mold core 2 form a cavity for molding an aluminum casting; as shown in fig. 3, the outer wall of the movable die holder 4 is fixed with a support column 7, the movable die holder 4 is fixed on a moving member in the die casting machine through the support column 7, and the movable die core 5 is opposite to the fixed die core 2.
An oil cylinder 8 is arranged on the outer wall of the movable die holder 4, and a push rod 11 is fixed at the end part of a piston rod of the oil cylinder 8; the ejector rod 11 penetrates through the inner wall and the outer wall of the movable die holder 4 in a sliding manner, a through hole is formed in the position, opposite to the ejector rod 11, of the movable die core 5, as shown in fig. 5, the tail end of the ejector rod 11 is fixed at the end part of a piston rod of the oil cylinder 8, the front end of the ejector rod 11 is provided with a material ejection part 12, and the material ejection part 12 is sleeved in the through hole; the ejector rod 11 is sleeved with the sealing rings 13, in this embodiment, the number of the sealing rings 13 is two, so that a sealing effect is better achieved, and external air is effectively prevented from entering the runner of the movable mold.
As shown in fig. 4, the outer side wall of the movable mold base 4 is provided with an air outlet 6, the movable mold base 4 is further provided with an air exhaust groove 9, one end of the air exhaust groove 9 is communicated with a through hole on the movable mold core 5, and the other end of the air exhaust groove 9 is communicated with the air outlet 6.
As shown in fig. 6, after the movable die holder 4 and the fixed die holder 1 are respectively installed in the die casting machine, the die casting machine is started, so that the movable die core 5 on the movable die holder 4 and the fixed die core 2 on the fixed die holder 1 are closed, aluminum liquid is poured into the die casting machine through the feed inlet 3 on the fixed die holder 1, the feed inlet 3 is sealed by the aluminum liquid at the moment, the air outlet 6 is connected with an external vacuumizing machine through a pipeline, at the moment, the air in a cavity formed by the movable die core 5 and the fixed die core 2 is exhausted, the aluminum liquid is continuously poured into the die casting machine through the feed inlet 3 until the die casting is formed in the cavity, when the aluminum casting is nearly solidified in the cavity, the oil cylinder 8 is started, the material ejection part 12 on the ejector rod 11 is driven to move in the through hole on the movable die core 5, the aluminum casting which is nearly formed is extruded, the internal structure of the aluminum casting is compact, air holes in the aluminum casting are reduced, and after the aluminum casting is formed, the die casting is separated from the fixed die holder 1 and the movable die holder 4, and the formed aluminum casting is taken down.
In this embodiment, as shown in fig. 4, the through hole of the movable mold core 5 is sleeved with the steel sleeve 10, and the ejection portion 12 of the ejector rod 11 is slidably sleeved in the steel sleeve 10, so that after long-time use, the steel sleeve with serious abrasion is replaced, and the steel sleeve can be continuously used after being replaced with a new steel sleeve.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (3)
1. The fixed-point vacuumizing mold for the aluminum castings is characterized by comprising a fixed mold base and a movable mold base;
a fixed mold core is arranged on the inner wall of the fixed mold base, a feed inlet is arranged on the fixed mold base, and the feed inlet is communicated with a runner in the fixed mold core; the fixed die seat is fixed in a fixing piece in the die casting machine;
the inner wall of the movable die holder is provided with a movable die core, the movable die core is matched with the fixed die core, and a flow passage of the movable die core and a flow passage of the fixed die core form a cavity for forming an aluminum casting; the outer wall of the movable die holder is fixedly provided with a support column, the movable die holder is fixed on a moving part in the die casting machine through the support column, and the movable die core is opposite to the fixed die core;
an oil cylinder is arranged on the outer wall of the movable die holder, and an ejector rod is fixed at the end part of a piston rod of the oil cylinder; the ejector rod penetrates through the inner wall and the outer wall of the movable die holder in a sliding mode, a through hole is formed in the position, opposite to the ejector rod, of the movable die core, the tail end of the ejector rod is fixed at the end part of a piston rod of the oil cylinder, the front end of the ejector rod is provided with a material ejection part, and the material ejection part is sleeved in the through hole; the ejector rod is sleeved with a sealing ring;
the air outlet is formed in the outer side wall of the movable die holder, the movable die holder is further provided with an air exhaust groove, one end of the air exhaust groove is communicated with a through hole in the movable die core, and the other end of the air exhaust groove is communicated with the air outlet.
2. A fixed point vacuum die for aluminum castings according to claim 1, wherein the number of said sealing rings is two.
3. The fixed point vacuum-pumping mould for aluminum castings according to claim 1 or 2, wherein a steel sleeve is sleeved in the through hole of the movable mould core, and the ejection part of the ejector rod is sleeved in the steel sleeve in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321075888.6U CN219648667U (en) | 2023-05-06 | 2023-05-06 | Fixed-point vacuumizing mold for aluminum castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321075888.6U CN219648667U (en) | 2023-05-06 | 2023-05-06 | Fixed-point vacuumizing mold for aluminum castings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219648667U true CN219648667U (en) | 2023-09-08 |
Family
ID=87861443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321075888.6U Active CN219648667U (en) | 2023-05-06 | 2023-05-06 | Fixed-point vacuumizing mold for aluminum castings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219648667U (en) |
-
2023
- 2023-05-06 CN CN202321075888.6U patent/CN219648667U/en active Active
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