CN207592733U - A kind of casting cylinder cap mold - Google Patents
A kind of casting cylinder cap mold Download PDFInfo
- Publication number
- CN207592733U CN207592733U CN201721824921.5U CN201721824921U CN207592733U CN 207592733 U CN207592733 U CN 207592733U CN 201721824921 U CN201721824921 U CN 201721824921U CN 207592733 U CN207592733 U CN 207592733U
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- CN
- China
- Prior art keywords
- inner cavity
- lower die
- upper mold
- precasting
- casting
- 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
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Abstract
The utility model discloses a kind of casting cylinder cap molds, it includes upper die and lower die, the upper mold is equipped with the inner cavity I for casting forming, the lower die is equipped with the inner cavity II for casting forming, the lower die is equipped with cast gate, the cast gate is connected with inner cavity II, inner cavity I when the upper mold is closed up with lower die, inner cavity II connects and forms forming cavity, the upper mold is equipped with precasting pin, the precasting pins position is in inner cavity I, the precasting pin is extend into inner cavity II, one end of the precasting pin is connect with lower die, the precasting pin is internally provided with water storage blind hole, the water storage blind hole is isolated with inner cavity I, one end of the water storage blind hole is connected with upper mold perimeter.The precasting pin position and structure of casting cylinder cap mould inside are optimized so that it can obtain the purpose for the heat dissipation performance for improving entire mold convenient for radiating and rationally being set convenient for the region of space layout on the basis of the purpose for realizing original blowhole.
Description
Technical field
The utility model is related to a kind of casting cylinder cap molds.
Background technology
The engine cylinder cover of automobile using casting technique produce, due to casting formed semi-finished product in structure with finished product
Structure is consistent, therefore the position that the position, width there are thinner thickness are shorter.If it is obtained by the production technology to drill on casting
Bolt hole needed for cylinder cap installation, then casting will certainly be carried out subtracting material mode and processed, this processing method for casting and
Speech has the hidden danger of damage casting.In order to avoid such material mode that subtracts is used to produce cylinder cap, in the prior art using improvement mold knot
The mode of structure forms bolt hole in casting cycle, increases precasting pin, the exterior contour and spiral shell of precasting pin mainly in mold
The inner surface of keyhole is identical, and molten metal is wrapped in outside precasting pin during casting, and bolt is just formd around precasting pin after cooling
Hole.
The mold of casting cylinder cap includes upper die and lower die in the prior art, and precasting pin is arranged in lower die.Metal during casting
Melt is out of, the cast gate of lower die enters mold forming cavity, and thus, lower die is always positioned at closest to smelting furnace in casting cycle
Position.For the open space position residing for upper mold, lower die is in narrow space, not only near to heat source, and
And it is unfavorable for radiating.So the structure of precasting pin is unfavorable for it plays cooling effect, and then lead to lower die in casting cycle
Heat dissipation performance it is not high, that is, the heat dissipation performance of entire mold is high.
Invention content
The technical problems to be solved in the utility model is how to improve the heat dissipation of the casting cylinder cap mold with precasting pin
Performance.
In order to solve the above technical problems, the utility model adopts the following technical solution：Casting cylinder cap mold includes upper
Mould and lower die, the upper mold is equipped with the inner cavity I for casting forming, the lower die is equipped with the inner cavity II for being used for casting forming, institute
Lower die is stated equipped with cast gate, the cast gate is connected with inner cavity II, inner cavity I when the upper mold is closed up with lower die, inner cavity II connect and
Forming cavity is formed, the upper mold is equipped with precasting pin, and in inner cavity I, the precasting pin is extend into inner cavity II the precasting pins position,
One end of the precasting pin is connect with lower die, and the precasting pin is internally provided with water storage blind hole, the water storage blind hole and inner cavity I every
From one end of the water storage blind hole is connected with upper mold perimeter.
The precasting pin of casting cylinder cap mold is arranged in upper mold, and upper mold is in open space during casting operation
It is interior, therefore more air can be contacted, also have enough spaces for adding other component.Structure while precasting pin position optimization
It is improved, water storage blind hole is passed through the heat dissipation performance that upper mold is remarkably improved under the situation of cooling water.Improve entire mould as a result,
The heat dissipation performance of tool.
In order to which the cooling water inside water storage blind hole is made to be more prone to convection current, the heat conductivility of raising precasting pin is described
The width of water storage blind hole from inside and outside toward direction on gradually increase.
The optional structure of water storage blind hole has coniform, pyramid-shaped, round table-like, prism-frustum-shaped.The preferred water storage of the technical program is blind
The structure in hole is in round table-like, which has the advantages that convenient for production.
The utility model uses above-mentioned technical proposal：The precasting pin position and structure of casting cylinder cap mould inside obtain excellent
Change so that it can be convenient for radiating and rationally being set convenient for the region of space layout, in the purpose for realizing original blowhole
On the basis of obtain the purpose of the heat dissipation performance for improving entire mold.
Description of the drawings
The utility model is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of structure diagram for casting cylinder cap mold of the utility model.
Specific embodiment
As shown in Figure 1.It casts cylinder cap and includes upper mold 1 and lower die 2 with mold.Upper mold 1 is equipped with the inner cavity I for casting forming
4th, lower die 2 is equipped with the inner cavity II 5 for casting forming, and 2 bottom of lower die is additionally provided with the cast gate 3 for inputting molten metal, cast gate 3
Directly connected with inner cavity II 5.Upper mold 1 is close together with lower die 2 during use, and inner cavity I 4 connects to form forming cavity with inner cavity II 5.
In order to precast the bolt hole on cylinder cap in casting cycle, precasting pin 6 is equipped in upper mold 1,6 overall structure of precasting pin is circle
Cylindricality, it be threadably secured in upper mold 1, precasting pin 6 is located in inner cavity I 4 after installation.Precasting pin 6 is internally provided with width
Spend from inside and outside toward direction on the water storage blind hole 7 that gradually increases, the water storage blind hole 7 is in round table-like in the present embodiment.Due to
Water storage blind hole 7 is blind hole structure, therefore it does not connect with inner cavity I 4 and is isolated thus is also at the state being isolated with forming cavity.In advance
1 surface of upper mold is exposed to descend in the position that connect with upper mold 1 of casting pin 6, thus the one end for the water storage blind hole 7 being arranged in precasting pin 6 and
1 perimeter of upper mold connects.
In use, upper mold 1 and lower die 2 are closed up, precasting pin 6 is extend into inner cavity II 5, and one end of precasting pin 6 and lower die 2
Close connection, the gap between precasting pin 6 and lower die 2 are not enough to flow into molten metal melt, that is, one end of precasting pin 6
It is tightly connected with 2 liquid of lower die.Water storage blind hole 7 is connected with external chilled(cooling) water supply (CWS) pipeline so that 7 inside of water storage blind hole is full of cold
But water.The upper mold 1 and lower die 2 closed up are placed in above casting equipment, and molten metal melt is flowed into from cast gate 3 in forming cavity.Casting
Heat passes to cooling water at precasting pin 6 in part forming process, and the cooling water in water storage blind hole 7 generates convection current after being heated, and promotees
The cooling water at this is made to generate flowing, and then obtain highly significant at precasting pin 6 with the cooling water in chilled(cooling) water supply (CWS) pipeline
Cooling radiation processes, improve the heat dissipation performance of entire mold as a result,.
Claims (3)
1. a kind of casting cylinder cap mold, the casting cylinder cap include upper mold (1) and lower die (2) with mold, the upper mold (1) is equipped with
Inner cavity I (4), the lower die (2) for casting forming are set on the lower die (2) equipped with the inner cavity II (5) for casting forming
There is cast gate (3), the cast gate (3) connects with inner cavity II (5), inner cavity I (4), inner cavity when the upper mold (1) is closed up with lower die (2)
II (5) connect and form forming cavity, it is characterised in that：The upper mold (1) is equipped with precasting pin (6), and the precasting pin (6) is positioned at interior
In chamber I (4), the precasting pin (6) is extend into inner cavity II (5), and one end of the precasting pin (6) is connect with lower die (2), described
Precasting pin (6) is internally provided with water storage blind hole (7), and the water storage blind hole (7) is isolated with inner cavity I (4), the water storage blind hole (7)
One end is connected with upper mold (1) perimeter.
2. cylinder cap mold is cast according to claim 1, it is characterised in that：The width of the water storage blind hole (7) is from inner
It is outer toward direction on gradually increase.
3. cylinder cap mold is cast according to claim 2, it is characterised in that：The water storage blind hole (7) is in round table-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721824921.5U CN207592733U (en) | 2017-12-22 | 2017-12-22 | A kind of casting cylinder cap mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721824921.5U CN207592733U (en) | 2017-12-22 | 2017-12-22 | A kind of casting cylinder cap mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207592733U true CN207592733U (en) | 2018-07-10 |
Family
ID=62767561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721824921.5U Expired - Fee Related CN207592733U (en) | 2017-12-22 | 2017-12-22 | A kind of casting cylinder cap mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207592733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548835A (en) * | 2019-09-04 | 2019-12-10 | 重庆新红旗缸盖制造有限公司 | Method for preventing cylinder cover from shrinkage porosity |
-
2017
- 2017-12-22 CN CN201721824921.5U patent/CN207592733U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548835A (en) * | 2019-09-04 | 2019-12-10 | 重庆新红旗缸盖制造有限公司 | Method for preventing cylinder cover from shrinkage porosity |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180710 Termination date: 20211222 |