CN203956018U - Casting sprue mold for engine high-strength thin-walled cylinder head cover - Google Patents
Casting sprue mold for engine high-strength thin-walled cylinder head cover Download PDFInfo
- Publication number
- CN203956018U CN203956018U CN201420435373.7U CN201420435373U CN203956018U CN 203956018 U CN203956018 U CN 203956018U CN 201420435373 U CN201420435373 U CN 201420435373U CN 203956018 U CN203956018 U CN 203956018U
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- ingate
- piece
- block
- cylinder head
- casting
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- Expired - Fee Related
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- 238000005266 casting Methods 0.000 title claims abstract description 27
- 239000004794 expanded polystyrene Substances 0.000 claims description 4
- 208000037656 Respiratory Sounds Diseases 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010923 batch production Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004512 die casting Methods 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract 1
- 239000003110 molding sand Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 239000003643 water by type Substances 0.000 description 4
- 238000004781 supercooling Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses an engine high strength thin wall cylinder head cover casting runner mould, including upper mould and bed die, upper mould and bed die are mutually supported and connected, the upper mould includes direct casting stick, cross gate piece, ingate piece and ingate piece, the direct casting stick is vertically arranged on the cross gate piece, the side sets up the ingate piece around the cross gate piece, the end of the ingate piece sets up the ingate piece, the ingate piece is Z type ingate piece, the cross section of the ingate piece is rectangle, the ingate piece is flat horn mouth shape, the bed die casting mould; the utility model discloses after batch production verifies, the technology yield is improved to 91% by original 55%, and the yield is improved to 98% by original 80%, and the crackle ratio is reduced to 1.17% by original 20%, and improvement that this technology is showing foundry goods yield and yield, very big reduction the crackle defect, the effect is very outstanding, is worth promoting and applying.
Description
Technical field
The utility model belongs to auto parts and components casting technology field, is specifically related to the high-strength thin-walled cylinder head cover casting of a kind of engine runner mould.
Technical background
Along with the implementation energetically of energy-saving and emission-reduction policy, the design of part of automobile engine has been done larger breakthrough in high-strength thin-walledization direction, wall thickness as the cylinder head cover of diesel engine cylinder block also requires to accomplish 4.5mm, and its length direction approaches 1000mm, and cross direction size is in 350mm left and right, belong to a rectangular-shaped piece, because of wall thickness, partial structurtes design sudden change obviously, casting stress is concentrated at structural mutation position, cause after casting falling sand the ratio of crackle very large, casting deformation is serious, causes production cost high.Traditional pouring technology design, for inclination bottom filling, because foundry goods bottom is an inclined-plane, so running channel is also with type inclined design, but the crackle ratio that this kind of pouring technology causes is always in 20% left and right, product yield only has 55%, a kind of automobile-used valve mechanism cover and manufacturing process thereof are disclosed in CN 103557085 A, comprise valve mechanism cover body, the enclosure interior of described valve mechanism cover body has many crisscross reinforcements, and the short transverse of every reinforcement is consistent with the short transverse of valve mechanism cover body; Each boss sidewall with installing hole in described valve mechanism cover body housing is all connected with reinforcement; Its manufacturing process comprises following step: 1) mould manufacture; 2) sand mold manufacture; 3) moulding by casting, but the cylinder head of its production is thicker, and adopted reinforcement, although improved intensity, but do not meet the requirement of energy-saving and emission-reduction, and a casting difficult problem in unresolved thin-walled situation, therefore need a kind of mould that can solve engine thin wall cylinder housing.
Utility model content
Main purpose of the present utility model is to provide a kind of simple in structure, easy and simple to handle, and can greatly improve the runner mould of high-strength thin-walled yield rate.
In order to address the above problem the technical solution adopted in the utility model: the high-strength thin-walled cylinder head cover casting of a kind of engine runner mould, comprise mold and bed die, described mold cooperatively interacts and is connected with bed die, described mold comprises and directly waters rod, cross gate piece, ingate piece and ingate piece, the described rod that directly waters is vertically arranged on cross gate piece, the all sides of described cross gate piece arrange ingate piece, described ingate piece end arranges ingate piece, described ingate piece is Z-type running channel piece, the cross section of described ingate piece is rectangle, described ingate piece is flat bell mouth shape, described bed die casting die.
Described ingate piece is flat trapezoidal shape.
The described rod that directly waters is for rounding frustum or cylinder table.
Described mold is expanded polystyrene (EPS) product.
The utility model is according to the shape of cylinder head cover, adopt expanded polystyrene (EPS) to make running channel piece, realize the moulding of integral runner, adopt monoblock running channel piece to make it can ensure the complete of running channel simultaneously, avoid carrying out while resetting running channel after sand mold, easily be subject to the impact of operator's qualification, may cause running channel to cave in and cause the phenomenon of moulding failure; According to the contraction feature of foundry goods, change the method for traditional shrinkage factor entirety Uniting, adopt and design in the different shrinkage factor of six direction of X, Y, Z solid space, the ingate piece being connected with cross gate piece in horizontal parting bottom surface, the running gate system of " Z " type of employing structure, cross-sectional area is the ingate of flat rectangle, has greatly reduced the tension of running gate system to foundry goods Y-direction, i.e. tension in width cast direction; Place in structural change arranges the ingate piece that is flat bell mouth shape, can increase temperature herein, reduces super cooling tendency, improves cast properties, has also reduced the crack defect of foundry goods.
Casting die described in the utility model is cylinder head cover mould in fact, place it in molding sand case, and running channel piece is placed in cylinder head cover mould, and ingate piece is contacted with the inwall of cylinder head cover mould, thus running channel formed, then cover molding sand thereon and compress, set again after pore, lift cast case top, take out cylinder head cover mould, again cast case is got togather again, then just can prepare cast.
The utility model is after batch production checking, product yield is increased to 91% by original 55%, yield rate is increased to 98% by original 80%, crackle ratio is reduced to 1.17% by original 20%, this technique has improved casting yield and yield rate significantly, greatly reduce crack defect, effect is very outstanding, is worthy to be popularized and applies.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model mold;
Fig. 2 is the structural representation of the utility model cylinder head cover mould;
Fig. 3 is the side view of the utility model ingate piece and ingate piece;
Fig. 4 is the top view of the utility model ingate piece and ingate piece;
Fig. 5 is the utility model overall structure schematic diagram.
1-directly waters excellent 2-cross gate piece 3-ingate piece 4-casting die 5-ingate buccal mass A 6-ingate buccal mass.
Detailed description of the invention
As shown in Fig. 1,3 and 4: mold adopts moulded mode, adopt and cross gate piece 2 is set directly watering excellent 1 bottom, and in 2 weeks sides of cross gate piece, ingate piece 3 is set, and the cross-sectional area of ingate piece 3 is flat rectangle and presents Z-type, so greatly reduce the tension of running gate system to foundry goods Y-direction, i.e. tension in width cast direction; At ingate piece 3 ends, ingate buccal mass 6 is set, and is flat bell mouth shape, the cast area while making it can increase cast, increases temperature herein, reduces super cooling tendency, improves cast properties, has also reduced the crack defect of foundry goods; Ingate buccal mass A5 is arranged on cross gate piece two ends, and what cross gate piece 2 both sides ingate pieces 3 were connected is ingate piece 6; But wherein the ingate buccal mass A5 at two ends slightly have any different in person realize function be identical, be all connected with Z-shaped ingate piece 3 ends, and be all flat bell mouth shape or flat trapezoidal shape.
As shown in Figure 2, it is the mould of the utility model cast member, places it in the cast cavity that can form cast member in molding sand, can form the shape of foundry goods, in bore, running channel is set at an upper portion thereof.
As shown in Figure 5: it is the structural representation after the utility model combination, combine with casting die 4 for running channel in fact, but the shape while not covering molding sand, in the time covering molding sand, casting die is arranged in lower box, and running channel is arranged in upper box, it can be separated upper lower box, and take out casting die, then get togather.
The utility model is according to the shape of cylinder head cover, adopt expanded polystyrene (EPS) to make running channel piece, realize the moulding of integral runner, adopt integral runner piece to make it can ensure the complete of running channel simultaneously, avoid carrying out while resetting running channel after sand mold, easily be subject to the impact of operator's qualification, may cause running channel to cave in and cause the phenomenon of moulding failure; According to the contraction feature of foundry goods, change the method for traditional shrinkage factor entirety Uniting, adopt and design in the different shrinkage factor of six direction of X, Y, Z solid space, the ingate piece being connected with cross gate piece in horizontal parting bottom surface, the running gate system of " Z " type of employing structure, cross-sectional area is the ingate of flat rectangle, has greatly reduced the tension of running gate system to foundry goods Y-direction, i.e. tension in width cast direction; Place in structural change arranges the ingate piece that is flat bell mouth shape, can increase temperature herein, reduces super cooling tendency, improves cast properties, has also reduced the crack defect of foundry goods.
Bed die described in the utility model is cylinder head cover mould in fact, place it in molding sand, and running channel piece is placed in cylinder head cover mould, and ingate piece is contacted with the inwall of cylinder head cover mould, thus running channel formed, then cover molding sand thereon and compress, set again after pore, will lift cast case top, take out cylinder head cover mould, again cast case is got togather again, then just can prepare to have poured into a mould.
The utility model is after batch production checking, product yield is increased to 91% by original 55%, yield rate is increased to 98% by original 80%, crackle ratio is reduced to 1.17% by original 20%, this technique has improved casting yield and yield rate significantly, greatly reduce crack defect, effect is very outstanding, is worthy to be popularized and applies.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435373.7U CN203956018U (en) | 2014-08-04 | 2014-08-04 | Casting sprue mold for engine high-strength thin-walled cylinder head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420435373.7U CN203956018U (en) | 2014-08-04 | 2014-08-04 | Casting sprue mold for engine high-strength thin-walled cylinder head cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203956018U true CN203956018U (en) | 2014-11-26 |
Family
ID=51916658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420435373.7U Expired - Fee Related CN203956018U (en) | 2014-08-04 | 2014-08-04 | Casting sprue mold for engine high-strength thin-walled cylinder head cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203956018U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077492A (en) * | 2016-08-24 | 2016-11-09 | 宁夏朗盛精密制造技术有限公司 | The Boftom gating system of matrix distribution formula |
| CN106180572A (en) * | 2016-08-31 | 2016-12-07 | 广西玉柴机器股份有限公司 | For casting the apparatus for pouring of integrated form Composite cylinder lid |
| CN106925722A (en) * | 2017-03-10 | 2017-07-07 | 长沙合丰耐磨材料有限公司 | Production overlength, the running gate system of ultra-thin aluminum alloy casting |
| CN108339940A (en) * | 2018-04-28 | 2018-07-31 | 共享智能铸造产业创新中心有限公司 | Running gate system and casting mold for manufacturing compresser cylinder casting |
-
2014
- 2014-08-04 CN CN201420435373.7U patent/CN203956018U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077492A (en) * | 2016-08-24 | 2016-11-09 | 宁夏朗盛精密制造技术有限公司 | The Boftom gating system of matrix distribution formula |
| CN106180572A (en) * | 2016-08-31 | 2016-12-07 | 广西玉柴机器股份有限公司 | For casting the apparatus for pouring of integrated form Composite cylinder lid |
| CN106925722A (en) * | 2017-03-10 | 2017-07-07 | 长沙合丰耐磨材料有限公司 | Production overlength, the running gate system of ultra-thin aluminum alloy casting |
| CN106925722B (en) * | 2017-03-10 | 2019-01-01 | 长沙合丰耐磨材料有限公司 | Produce overlength, the running gate system of ultra-thin aluminum alloy casting |
| CN108339940A (en) * | 2018-04-28 | 2018-07-31 | 共享智能铸造产业创新中心有限公司 | Running gate system and casting mold for manufacturing compresser cylinder casting |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 |