CN205571334U - Casting die utensil of dysmorphism combustion chamber piston - Google Patents
Casting die utensil of dysmorphism combustion chamber piston Download PDFInfo
- Publication number
- CN205571334U CN205571334U CN201620424630.6U CN201620424630U CN205571334U CN 205571334 U CN205571334 U CN 205571334U CN 201620424630 U CN201620424630 U CN 201620424630U CN 205571334 U CN205571334 U CN 205571334U
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- China
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- rising head
- external mold
- combustion chamber
- kidney
- casting die
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Abstract
The utility model relates to a casting die utensil of dysmorphism combustion chamber piston, including external mold, centre form, top mould, external mold and fixed by the tang cover is put into at the centre form top, the external mold top is provided with a mould, the top mould is connected with waist shape rising head through riser bush, be provided with the rising head clamp plate on the waist shape rising head, the inner chamber of waist shape rising head is reduced by supreme down gradually. The utility model discloses to have cylindrical rising head now and change waist shape rising head into and be aided with the blind riser, and reinforce the heat preservation effect, and then promoted rising head feeding rate, casting quality improves thereupon by a wide margin.
Description
Technical field
This utility model relates to piston production mould, is specifically related to the casting die of a kind of engine with special combustion chamber piston.
Background technology
nullNon-processing engine with special combustion chamber piston is in casting process，There is the most universal defect phenomenon is loosening at end face rising head，Piston for some end face band non-processing engine with special combustion chamber，Reason due to structure，Backform can not arrange excessive rising head，Cause riser feeding amount not enough，Thus produce defect，For solving this type of defect，One is the structure using traditional cylindrical rising head，Increase wall thickness and the height of rising head，The second is to improve pouring temperature and change cooling technique，To increase the temperature of backform，Though both approaches can play certain effect，But after improving temperature，Aluminum water setting time is long，Affect production efficiency，Simultaneously because after processing rising head，Feeding channel lengthens，Also it is difficult to effectively play the effect of riser feeding，Therefore in actual production，Waste product because producing batch when pouring technology or pouring condition change often occurs，The average level of this series products foundary loss quality control is typically about 10% in the industry.In order to improve yield rate, reducing quality cost, development of new casting die structure is quite necessary.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of simple in construction, can promote riser supplement shrink efficiency, it is to avoid feeding is bad and the casting die of the engine with special combustion chamber piston of loose or shrinkage cavity that causes.
For solving above-mentioned technical problem, the casting die of this utility model a kind of engine with special combustion chamber piston, including external mold, interior mould, backform；Described interior mould top is inserted external mold and is fixed by seam set, and described external mold is provided above backform, and described backform is connected by riser buss kidney-shaped rising head, and described kidney-shaped rising head is provided with rising head pressing plate；The inner chamber of described kidney-shaped rising head is gradually reduced from the bottom to top.During this utility model operation, kidney-shaped rising head increases volume and shortens Feeding channel relative to traditional cylindrical rising head and enhance insulation effect, is effectively increased feeding rate, meets the mechanism of consecutive solidification so that finally cool down at rising head.
Further, it is additionally provided with heat-insulation layer between described riser buss and kidney-shaped rising head.It effectively reduces the conduction of heat between kidney-shaped rising head and backform.
Further, described external mold is additionally provided with blind riser.During piston casting solidification, first blind riser provides feeding aluminum liquid, to strengthen feeding effect to thick large part.
Further, described kidney-shaped rising head is centrally positioned on backform.During piston casting, aluminum liquid relaxation shrinkage is implemented more efficient control by it, and product qualified rate is greatly improved.
Existing cylindrical rising head is changed into kidney-shaped rising head and is aided with blind riser by this utility model, and it enhances insulation effect, and then improves riser feeding rate, and casting quality is greatly improved therewith.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is kidney-shaped rising head top view of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described:
As shown in Figure 1 and Figure 2, the casting die of this utility model a kind of engine with special combustion chamber piston, including external mold 1, interior mould 2, backform 4；Described interior mould 2 top is inserted external mold 1 and is fixed by seam set 3, and described external mold 1 is provided above backform 4, and described backform 4 is connected by riser buss 5 kidney-shaped rising head 6, and described kidney-shaped rising head 6 is provided with rising head pressing plate 7；The inner chamber 6a volume of described kidney-shaped rising head 6 is gradually reduced from the bottom to top.
It is additionally provided with heat-insulation layer 8 between described riser buss 5 and kidney-shaped rising head 6.
Described external mold 1 is additionally provided with blind riser 9.
Described kidney-shaped rising head 6 is centrally positioned on backform 4.
Main target of the present utility model: one is the feeding effect being effectively increased rising head, and two is to set up effective Feeding channel, the loose or shrinkage cavity caused because feeding is bad to ensure top thickness large part to avoid when solidification.
During casting, aluminum melt is by cast gate 1a inclined casting, and controls poring rate well, and aluminum melt enters die cavity 10 rear section aluminum melt and enters in blind riser 9 and kidney-shaped rising head 6.Piston cools down formative stage, and in blind riser 9, aluminum melt is first to its thickness large part offer feeding aluminum melt, increases feeding effect with auxiliary, it is to avoid generation feeding is bad and loosening or shrinkage cavity of causing, and is incubated aluminum melt enforcement feeding in good kidney-shaped rising head 6 simultaneously.
This utility model changes the cylindrical rising head of conventional piston mould into kidney-shaped rising head 6, so arranges and rising head volume can be significantly increased.In order to strengthen kidney-shaped rising head 6 insulation effect, meeting the mechanism of consecutive solidification, the calcium silicate heat-preserving filling excellent thermal insulation performance in heat-insulation layer 8 is cotton, to reduce the conduction of heat between kidney-shaped rising head 6 and backform 4.
In order to shorten the Feeding channel of top thickness large part, further enhance feeding capacity, external mold 1 arranges blind riser 9, thermal insulation coatings is brushed after interior brill steam vent beyond the Great Wall heat-preservation cotton, during piston solidification, first blind riser 9 provides feeding aluminum melt to thick large part, increases feeding effect with auxiliary.
This utility model, in actual production, coordinates inclined casting, controls poring rate so that casting quality improves a lot, and product qualified rate can improve to about 5%, has suitable dissemination.
Claims (4)
1. a casting die for engine with special combustion chamber piston, including external mold (1), interior mould (2), backform (4)；Described interior mould (2) top is inserted external mold (1) and is fixed by seam set (3), it is characterized in that: described external mold (1) is provided above backform (4), described backform (4) is connected by riser buss (5) kidney-shaped rising head (6), and described kidney-shaped rising head (6) is provided with rising head pressing plate (7)；The inner chamber (6a) of described kidney-shaped rising head (6) is gradually reduced from the bottom to top.
The casting die of engine with special combustion chamber piston the most according to claim 1, is characterized in that: be additionally provided with heat-insulation layer (8) between described riser buss (5) and kidney-shaped rising head (6).
The casting die of engine with special combustion chamber piston the most according to claim 1, is characterized in that: described external mold (1) is additionally provided with blind riser (9).
4., according to the casting die of described engine with special combustion chamber piston arbitrary in claims 1 to 3, it is characterized in that: described kidney-shaped rising head (6) is centrally positioned on backform (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620424630.6U CN205571334U (en) | 2016-05-11 | 2016-05-11 | Casting die utensil of dysmorphism combustion chamber piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620424630.6U CN205571334U (en) | 2016-05-11 | 2016-05-11 | Casting die utensil of dysmorphism combustion chamber piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205571334U true CN205571334U (en) | 2016-09-14 |
Family
ID=56857420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620424630.6U Expired - Fee Related CN205571334U (en) | 2016-05-11 | 2016-05-11 | Casting die utensil of dysmorphism combustion chamber piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205571334U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695298A (en) * | 2017-11-24 | 2018-02-16 | 天台县银兴机械铸造有限公司 | Engine rocker room mould with blind riser |
| CN108453231A (en) * | 2018-02-01 | 2018-08-28 | 浙江宝琳自动化设备有限公司 | Profile-followed control cold mold and its application method |
| CN114054680A (en) * | 2021-11-05 | 2022-02-18 | 安徽省恒泰动力科技有限公司 | Single-cavity die for feeding riser and large-cylinder-diameter piston |
| CN114130999A (en) * | 2021-11-05 | 2022-03-04 | 安徽省恒泰动力科技有限公司 | Whole core mould assembly structure |
| CN114799072A (en) * | 2022-05-20 | 2022-07-29 | 安徽省恒泰动力科技有限公司 | Feeding head mould of forming combustion chamber and feeding method thereof |
-
2016
- 2016-05-11 CN CN201620424630.6U patent/CN205571334U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107695298A (en) * | 2017-11-24 | 2018-02-16 | 天台县银兴机械铸造有限公司 | Engine rocker room mould with blind riser |
| CN107695298B (en) * | 2017-11-24 | 2024-01-09 | 浙江银兴机械股份有限公司 | Engine rocker arm chamber forming die with blind riser |
| CN108453231A (en) * | 2018-02-01 | 2018-08-28 | 浙江宝琳自动化设备有限公司 | Profile-followed control cold mold and its application method |
| CN114054680A (en) * | 2021-11-05 | 2022-02-18 | 安徽省恒泰动力科技有限公司 | Single-cavity die for feeding riser and large-cylinder-diameter piston |
| CN114130999A (en) * | 2021-11-05 | 2022-03-04 | 安徽省恒泰动力科技有限公司 | Whole core mould assembly structure |
| CN114799072A (en) * | 2022-05-20 | 2022-07-29 | 安徽省恒泰动力科技有限公司 | Feeding head mould of forming combustion chamber and feeding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20200511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |