CN202097369U - Cold core sand-lined outer mold for engine blocks - Google Patents
Cold core sand-lined outer mold for engine blocks Download PDFInfo
- Publication number
- CN202097369U CN202097369U CN2011201665945U CN201120166594U CN202097369U CN 202097369 U CN202097369 U CN 202097369U CN 2011201665945 U CN2011201665945 U CN 2011201665945U CN 201120166594 U CN201120166594 U CN 201120166594U CN 202097369 U CN202097369 U CN 202097369U
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- China
- Prior art keywords
- sand
- cold core
- sandbox
- flask
- core sand
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- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a cold core sand-lined outer mold for engine blocks. The cold core sand-lined outer mold comprises a cope flask and a drag flask which are closed together, the cope flask and the drag flask are respectively provided with sand-jetting holes, hardened cold core sand layers are respectively jetted to cover the inner cavity walls of the iron pattern cavities of the cope flask and the drag flask, and the surface profiles of the cold core sand layers are matched with the shape of the outer wall of a cast engine block. Since the cope flask and the drag flask are respectively provided with the sand-jetting holes, during casting manufacturing, the mixed cold core sand can be jetted into the cavities of the cope flask and the drag flask via the sand-jetting holes and shaped, and the novel casting technique and the novel method in which the sand covers the inner walls of the cope flask and the drag flask by means of hardener to form the molding sand layers increase the dimensional precision of rough castings, reduce the weights of rough castings, thoroughly change the environment of a molding site, haves no dust pollution, greatly reduce labor intensity and energy consumption, increase labour productivity, and can realize clean production.
Description
Technical field
The utility model relates to casting technology field, and especially a kind of engine cylinder-body cold core covers the sand external mold.
Background technology
The casting technique of Traditional engine cylinder body adopts greensand mo(u)lding mostly, and produced on-site workman's working strength is big, and environomental pollution source is many, and efficient is low, can not realize cleaner production, and spray quality and dimensional accuracy can not guarantee.
The utility model content
The technical problem that the utility model will solve is: overcome the deficiency of existing greensand mo(u)lding, provide a kind of and cast that cost specific humidity sand cost is low, casting dimension accuracy is high, engine cylinder-body cold core in light weight, that the working environment of workers good, labour intensity is low and labor productivity is high covers the sand external mold.
The utility model solves the technical scheme that its technical problem adopted: a kind of engine cylinder-body cold core covers the sand external mold; The patrix sandbox and the counterdie sandbox that comprise mutual closure; Offer sand-spraying hole respectively on described patrix sandbox and the counterdie sandbox; Spray the cold core layer of sand that is coated with curing on the swage die cavity internal chamber wall of patrix sandbox and counterdie sandbox respectively, the surface profile of said cold core layer coincide with the outer wall shape of cast cylinder body.
Even for guaranteeing to penetrate sand, described sand-spraying hole is distributed on patrix sandbox and the counterdie sandbox.
Described patrix sandbox and counterdie sandbox closing face two ends have the locating hole that mould assembling is used.
The beneficial effect of the utility model is: the utility model is offered sand-spraying hole respectively on upper and lower sand case, when casting mold is made, can the cold core sand that mix be ejected into respectively in the die cavity of upper and lower sand case through sand-spraying hole; Form device for sand coated iron mould on its surface, and solidify, thereby reduce labor intensity through curing agent; Raise labour productivity; Change the work on the spot environment, accomplish no dust pollution, realize cleaner production; And improved the blank quality and the dimensional accuracy of foundry goods, also alleviated blank weight.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the sectional structure sketch map of A-A among Fig. 1.
Fig. 3 is the sketch map of said patrix sandbox of the utility model and counterdie sandbox closing face locating hole.
1. patrix sandboxes, 2. counterdie sandboxes, 3. sand-spraying holes, 4. cold core layers of sand, 5. locating holes, 6. dead heads among the figure
The specific embodiment
Combine accompanying drawing that the utility model is further described now.The sketch map that these accompanying drawings are simplification is only explained the basic structure of the utility model in a schematic way, so it only shows the formation relevant with the utility model.
Cover the sand external mold like Fig. 1, Fig. 2, a kind of engine cylinder-body cold core shown in Figure 3; Be used to make single cylinder or bi-block engine cylinder body; The patrix sandbox 1 and counterdie sandbox 2 that comprise mutual closure; Offer sand-spraying hole 3 respectively on described patrix sandbox 1 and the counterdie sandbox 2; Also offer dead head 6 on the patrix sandbox 1, spray the cold core layer of sand 4 that is coated with curing on the swage die cavity internal chamber wall of patrix sandbox 1 and counterdie sandbox 2 respectively, the surface profile of said cold core layer of sand 4 coincide with the outer wall shape of cast cylinder body.
Described sand-spraying hole 3 is distributed on patrix sandbox 1 and the counterdie sandbox 2, and is even to guarantee sandblast; Simultaneously, have the locating hole 5 that mould assembling is used at the two ends of described patrix sandbox 1 and counterdie sandbox 2 closing faces.
The utility model is offered sand-spraying hole 3 respectively on upper and lower sand case 1,2; When casting mold is made; Can the cold core sand blasting that mix be gone into to be placed with the casting mould inner chamber of loose tool through sand-spraying hole 3; After solidifying through curing agent, cover into cold core layer of sand 4, form device for sand coated iron mould at the inwall of upper and lower sand case 1,2.When wherein the single-cylinder engine cylinder body is cast, in the spindle hole of cylinder body, offer dead head 6, form bottom pour mold through the mud core; During the casting of multicylinder engine cylinder body, dead head 6 is opened on the periphery of cylinder body.
Above-mentioned embodiment is only for explaining the technical conceive and the characteristics of the utility model; Its purpose is to let the personage that is familiar with this technology can understand the content of the utility model and implements; Can not limit the protection domain of the utility model with this; All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed in the protection domain of the utility model.
Claims (3)
1. an engine cylinder-body cold core covers the sand external mold; The patrix sandbox (1) and the counterdie sandbox (2) that comprise mutual closure; It is characterized in that: offer sand-spraying hole (3) respectively on described patrix sandbox (1) and the counterdie sandbox (2); Spray the cold core layer of sand (4) that is coated with curing on the swage die cavity internal chamber wall of patrix sandbox (1) and counterdie sandbox (2) respectively, the surface profile of said cold core layer of sand (4) coincide with the outer wall shape of cast cylinder body.
2. engine cylinder-body cold core according to claim 1 covers the sand external mold, it is characterized in that: described sand-spraying hole (3) is distributed on patrix sandbox (1) and the counterdie sandbox (2).
3. engine cylinder-body cold core according to claim 1 covers the sand external mold, it is characterized in that: described patrix sandbox (1) and counterdie sandbox (2) closing face two ends have the locating hole (5) that mould assembling is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201665945U CN202097369U (en) | 2011-05-23 | 2011-05-23 | Cold core sand-lined outer mold for engine blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201665945U CN202097369U (en) | 2011-05-23 | 2011-05-23 | Cold core sand-lined outer mold for engine blocks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202097369U true CN202097369U (en) | 2012-01-04 |
Family
ID=45383403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201665945U Expired - Fee Related CN202097369U (en) | 2011-05-23 | 2011-05-23 | Cold core sand-lined outer mold for engine blocks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202097369U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211147A (en) * | 2011-05-23 | 2011-10-12 | 江苏鑫和泰机械集团有限公司 | Engine block cold core sand coated external mould and manufacturing method thereof |
| CN107884258A (en) * | 2017-11-24 | 2018-04-06 | 四川共享铸造有限公司 | A kind of sand core strength test block mould |
-
2011
- 2011-05-23 CN CN2011201665945U patent/CN202097369U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211147A (en) * | 2011-05-23 | 2011-10-12 | 江苏鑫和泰机械集团有限公司 | Engine block cold core sand coated external mould and manufacturing method thereof |
| CN102211147B (en) * | 2011-05-23 | 2013-04-24 | 江苏鑫和泰机械集团有限公司 | Manufacturing method of engine block cold core sand coated external mould |
| CN107884258A (en) * | 2017-11-24 | 2018-04-06 | 四川共享铸造有限公司 | A kind of sand core strength test block mould |
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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: 20120104 Termination date: 20200523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |