CN220248932U - Hydraulic vacuumizing device for die - Google Patents
Hydraulic vacuumizing device for die Download PDFInfo
- Publication number
- CN220248932U CN220248932U CN202321623631.XU CN202321623631U CN220248932U CN 220248932 U CN220248932 U CN 220248932U CN 202321623631 U CN202321623631 U CN 202321623631U CN 220248932 U CN220248932 U CN 220248932U
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- valve body
- connecting hole
- valve rod
- valve
- sealing
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- 238000007789 sealing Methods 0.000 claims abstract description 36
- 230000000903 blocking effect Effects 0.000 claims description 21
- 238000005086 pumping Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 6
- 238000005266 casting Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 229910001338 liquidmetal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model belongs to the technical field of mold vacuumizing, and provides a hydraulic vacuumizing device for a mold, which comprises the following components: valve body, exhaust tube and valve rod, the inside cavity that is provided with of valve body, valve body lateral wall and valve body top all are equipped with the connecting hole with the cavity intercommunication, and the exhaust tube is inserted in the connecting hole of valve body lateral wall, and valve rod mobilizable inserts establishes the valve body, and wherein, the tip that the valve rod is close to the connecting hole at valve body top is formed with sealing portion, and the connecting hole at valve body top has the portion of leaning on with valve rod axis parallel arrangement, sealing portion and the portion parallel arrangement of leaning on, and sealing portion and the portion of leaning on the activity of leaning on are leaned on. Compared with the prior art, the sealing valve has the advantages that the sealing part is formed on the valve rod, the connecting hole at the top is provided with the abutting part which is arranged in parallel with the axis of the valve rod, and the sealing part is arranged in parallel with the abutting part, so that the sealing part is movably abutted against the abutting part of the valve body, the plugging effect can be ensured, and the quality of a casting cast after the die is ensured.
Description
Technical Field
The utility model belongs to the technical field of mold vacuumizing, and particularly relates to a hydraulic vacuumizing device for a mold.
Background
Pressure casting is a method in which liquid or semi-liquid metal is filled into a die cavity of a die casting mold at a high speed under high pressure and is rapidly solidified under pressure to obtain a casting. In order to ensure the quality of castings, a mold vacuumizing device is usually arranged in a mold, so that negative pressure is formed in a mold cavity, unsaturated liquid or semi-liquid metal can be pumped out of the mold through the mold vacuumizing device by utilizing the pressure generated by vacuum, and the problems of air trapping and chromatic aberration are reduced and air holes are improved. Meanwhile, the vacuumizing device can improve the pressure flow direction in the die, improve the fluidity of the metal feed liquid in the die, and enable the filling effect to be better, thereby improving the quality of products.
Fig. 5 is a schematic illustration of an existing hydraulic vacuum-pumping device, wherein a sealing needle (conical table) is arranged at the top end of a valve rod on the vacuum-pumping device, a mold is closed, metal feed liquid is entrained in the extracted gas in the vacuum-pumping process of the vacuum-pumping device, the metal feed liquid is adhered between the sealing needle and a valve body, the needle cannot be reset, and a gap is formed between the needle and the valve body, so that the hydraulic vacuum-pumping cannot be normally used, and an improvement is provided for the structure.
Disclosure of Invention
The utility model aims to solve the technical problem of the prior art, and provides a hydraulic vacuumizing device for improving the plugging effect of a die.
The technical scheme adopted for solving the technical problems is as follows: a hydraulic vacuum apparatus for a mold is proposed, comprising: the valve body is internally provided with a cavity, the side wall of the valve body and the top of the valve body are respectively provided with a connecting hole communicated with the cavity, the exhaust pipe is inserted into the connecting hole of the side wall of the valve body, the valve rod is movably inserted into the valve body,
the end part of the valve rod, which is close to the connecting hole at the top of the valve body, is provided with a sealing part, the connecting hole at the top of the valve body is provided with an abutting part which is arranged in parallel with the axis of the valve rod, the sealing part is arranged in parallel with the abutting part, and the sealing part is movably abutted against the abutting part.
In the hydraulic vacuumizing device for the die, a blocking portion is formed at the end portion, close to the connecting hole in the top of the valve body, of the valve rod, the blocking portion is perpendicular to the sealing portion, the connecting hole in the top of the valve body is provided with a first limiting portion, and the first limiting portion is movably abutted to the blocking portion.
In the hydraulic vacuumizing device for the die, the connecting hole at the top of the valve body is provided with the limiting groove, the side face of the limiting groove is provided with the abutting part, the bottom face of the limiting groove is provided with the first limiting part, the top end of the valve rod is provided with the boss, the side face of the boss is provided with the sealing part, the bottom face is provided with the blocking part, and the boss is movably abutted to the limiting groove.
In the hydraulic vacuum-pumping device for a die, the connecting hole at the top of the valve body is provided with a large end extending outwards along the axial direction of the hole, and the large end is connected with the abutting part.
In the hydraulic vacuumizing device for the die, a buffer part is formed at the end part of the valve rod, which is close to the connecting hole at the top of the valve body, and the buffer part is arranged adjacent to the blocking part, and the connecting hole at the top of the valve body is provided with a second limiting part, the second limiting part is connected with the first limiting part, and the buffer part is movably abutted to the second limiting part.
In the hydraulic vacuumizing device for the die, the buffer parts are radially arranged towards the blocking part.
In the hydraulic vacuumizing device for the die, the driving end of the oil cylinder is connected with the tail of the valve rod.
Compared with the prior art, the sealing valve has the advantages that the sealing part is formed on the valve rod, the connecting hole at the top is provided with the abutting part which is arranged in parallel with the axis of the valve rod, and the sealing part is arranged in parallel with the abutting part, so that the sealing part is movably abutted against the abutting part of the valve body, the plugging effect can be ensured, and the quality of a casting cast after the die is ensured.
Drawings
FIG. 1 is a schematic view of the structure of the present hydraulic vacuum apparatus;
FIG. 2 is a cross-sectional view of the present hydraulic vacuum apparatus;
FIG. 3 is a schematic illustration of the structure of a valve stem;
FIG. 4 is a schematic structural view of the valve body;
fig. 5 is a schematic diagram of the structure of the old product.
In the drawing the view of the figure,
1. a valve body; 100. a connection hole; 101. a limit groove; 102. an abutting portion; 103. a first limit part; 104. a large end; 105. a second limit part; 106. a chamber;
2. an exhaust pipe;
3. a valve stem; 300. a sealing part; 301. a blocking portion; 302. a boss; 303. a buffer section;
4. and (5) an oil cylinder.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 and 2, a hydraulic vacuum apparatus for a mold includes: valve body 1, exhaust tube 2 and valve rod 3.
Specifically, the valve body 1 is set as a vacuum valve, the inside of the valve body 1 is provided with a cavity 106, the side wall of the valve body 1 and the top of the valve body 1 are both provided with connecting holes 100 communicated with the cavity 106, one end of the exhaust pipe 2 is connected with a vacuum station arranged outside, the other end of the exhaust pipe 2 is connected with the connecting hole 100 of the side wall of the valve body 1, the valve rod 3 is movably inserted into the valve body 1, a sealing part 300 is formed on the side part of the top end of the valve rod 3, the connecting hole 100 at the top of the valve rod 3 is provided with an abutting part 102 which is parallel to the axis of the valve rod 3, the sealing part 300 is also parallel to the abutting part 102, and when the valve rod moves along the axial direction, the sealing part 300 can abut against the abutting part 102 to realize a blocking effect, or separate from the abutting to realize air extraction.
As shown in fig. 1 to 4, in order to enable the valve rod 3 to block the connection hole 100 at the top of the valve body 1, a blocking portion 301 is formed at the top of the valve rod 3, the blocking portion 301 is disposed perpendicular to the sealing portion 300, and the connection hole 100 at the top of the valve body 1 has a first limiting portion 103, and the first limiting portion 103 is disposed perpendicular to the abutting portion 102, so that the blocking portion 301 can abut against the first limiting portion 103 movably.
It should be noted that the vertical height of the sealing portion 300 is longer than the transverse width of the blocking portion 301, and this arrangement has the advantage that the valve rod 3 is separated from the connecting hole 100 at the top of the valve body 1 in the vacuum pumping state, during the air pumping process, the metal material entrained in the air will adhere to the abutting portion 102 and other positions, and when the vacuum pumping is completed, the valve rod 3 acts and makes the sealing portion 300 vertically move downwards to abut against the sealing portion 300, and the metal material adhered on the sealing portion 300 is scraped to the first limiting portion 103, so that the sealing of the connecting hole 100 at the top of the valve rod 3 and the valve body 1 is realized.
Further, as shown in fig. 2 to 4, the connecting hole 100 at the top of the valve body 1 has a limit groove 101, an abutment 102 is formed on a side surface of the limit groove 101, a first limit 103 is formed on a bottom surface of the limit groove 101, a boss 302 is provided on a top end of the valve rod 3, a sealing 300 is formed on a side surface of the boss 302, a blocking 301 is formed on a bottom surface of the sealing portion 300, and the boss 302 movably abuts against the limit groove 101.
Further, in order to enable the valve rod 3 to be quickly detached from or quickly abutted against the connection hole 100 at the top of the valve body 1, as shown in fig. 4, the connection hole 100 at the top of the valve body 1 has a large end 104 extending outwardly in the axial direction of the hole, the large end 104 is connected to the abutment 102, and the large end 104 is provided to enable the boss 302 of the valve rod 3 to be located in the connection hole 100 at the top of the valve body 1 without interfering with other structures inside the die.
Specifically, as shown in fig. 2 and 3, the end portion of the valve rod 3, which is close to the connecting hole 100 at the top of the valve body 1, forms a buffer portion 303, the buffer portion 303 is radially arranged towards the blocking portion 301, the buffer portion 303 is adjacent to the blocking portion 301, the connecting hole 100 at the top of the valve body 1 is provided with a second limiting portion 105 matched with the buffer portion 303, the second limiting portion 105 is connected with the first limiting portion 103, and the buffer portion 303 is movably abutted against the second limiting portion 105, so that the sealing effect is further achieved.
Further, as shown in fig. 1 and 2, in order to enable the valve rod 3 to be separated from or abut against the connecting hole 100 at the top of the valve body 1, the vacuum device is provided with an oil cylinder 4, and the driving end of the oil cylinder 4 is connected with the tail of the valve rod 3, so that when the oil cylinder 4 works, the driving end of the oil cylinder 4 can drive the valve rod 3 to move vertically.
It should be noted that, this hydraulic vacuum-pumping device sets up in the mould (not shown in the figure), and valve body 1 is located the mold core of mould, and during the die-casting of mould compound die, exhaust tube 2 is connected to the vacuum station, and the metal feed liquid is washed into the die cavity for the inside air of mould is taken out from the connecting hole 100 in valve body 1 top, produces the negative pressure in the mould, and hydro-cylinder 4 pulls valve rod 3, makes boss 302 and spacing groove 101 realize supporting tightly, forms sealed shutoff.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
Claims (7)
1. A hydraulic vacuum apparatus for a mold, comprising: the valve body is internally provided with a cavity, the side wall of the valve body and the top of the valve body are respectively provided with a connecting hole communicated with the cavity, the exhaust pipe is inserted into the connecting hole of the side wall of the valve body, the valve rod is movably inserted into the valve body,
the end part of the valve rod, which is close to the connecting hole at the top of the valve body, is provided with a sealing part, the connecting hole at the top of the valve body is provided with an abutting part which is arranged in parallel with the axis of the valve rod, the sealing part is arranged in parallel with the abutting part, and the sealing part is movably abutted against the abutting part.
2. The hydraulic vacuum pumping device for the die set forth in claim 1, wherein a blocking portion is formed at an end portion of the valve rod, which is close to the connecting hole at the top of the valve body, and the blocking portion is perpendicular to the sealing portion, and the connecting hole at the top of the valve body has a first limiting portion, and the first limiting portion is movably abutted against the blocking portion.
3. The hydraulic vacuum-pumping device for a die according to claim 2, wherein the connecting hole at the top of the valve body is provided with a limit groove, the side surface of the limit groove is provided with the abutting part, the bottom surface of the limit groove is provided with the first limit part, the top end of the valve rod is provided with a boss, the side surface of the boss is provided with the sealing part, the bottom surface is provided with the blocking part, and the boss is movably abutted against the limit groove.
4. A hydraulic vacuum apparatus for a mold according to claim 3, wherein the connection hole at the top of the valve body has a large end extending outwardly in the axial direction of the hole, and the large end is connected to the abutting portion.
5. The hydraulic vacuum pumping device for the die according to claim 2, wherein a buffer part is formed at the end part of the valve rod, which is close to the connecting hole at the top of the valve body, and the buffer part is arranged adjacent to the blocking part, and the connecting hole at the top of the valve body is provided with a second limiting part, the second limiting part is connected with the first limiting part, and the buffer part is movably abutted against the second limiting part.
6. The hydraulic vacuum apparatus for a mold according to claim 5, wherein the buffer portion is radially arranged toward the blocking portion.
7. The hydraulic vacuum apparatus for a mold of claim 2, further comprising a cylinder, wherein the drive end of the cylinder is connected to the tail of the valve stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321623631.XU CN220248932U (en) | 2023-06-26 | 2023-06-26 | Hydraulic vacuumizing device for die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321623631.XU CN220248932U (en) | 2023-06-26 | 2023-06-26 | Hydraulic vacuumizing device for die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220248932U true CN220248932U (en) | 2023-12-26 |
Family
ID=89233812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321623631.XU Active CN220248932U (en) | 2023-06-26 | 2023-06-26 | Hydraulic vacuumizing device for die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220248932U (en) |
-
2023
- 2023-06-26 CN CN202321623631.XU patent/CN220248932U/en active Active
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| GR01 | Patent grant |