CN212884876U - Manufacturing system of sand core for casting of wind power base casting - Google Patents
Manufacturing system of sand core for casting of wind power base casting Download PDFInfo
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- CN212884876U CN212884876U CN202021215598.3U CN202021215598U CN212884876U CN 212884876 U CN212884876 U CN 212884876U CN 202021215598 U CN202021215598 U CN 202021215598U CN 212884876 U CN212884876 U CN 212884876U
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Abstract
A manufacturing system of a sand core for casting of a wind power base casting comprises a core box, a core frame and molding sand; the core bar is positioned in the core box, a gap for manufacturing a core print is reserved between the lower part of the core bar and the bottom surface of the core box, and molding sand is filled in the gap; and molding sand is filled between the core bar and the inner wall of the core box, and the molding sand and the core bar form a sand core. The structure of the core rod comprises: the coaming, the top surface and the main body support rib; the top edges of the enclosing plates are sequentially connected with the edges of the top surface to enclose a cavity, and the bottom surface of the cavity is connected with main body supporting ribs; the main body support rib is formed by splicing lattices formed by connecting a plurality of rib plates; the top surface is provided with a plurality of lower sand openings; the two opposite ends of the top surface are provided with a corresponding cold air inlet and a corresponding cold air outlet; the top surface is connected with a hook connecting device. The sand core made by the system saves raw materials, and the weight of the sand core is lightened, so that the lifting risk is reduced.
Description
Technical Field
The patent of the utility model mainly relates to product casting application, mainly to control resin sand quantity in the manufacturing process of large-scale wind-powered electricity generation base class foundry goods, reduction in production cost improves production safety and the novel special core bone of design.
Particularly, the core rod is placed in a core box mold during casting and molding, and the core rod is suitable for safely lifting, accelerating the cooling of a casting, reducing cost and improving efficiency.
Background
In the casting field, the price of the raw materials floats greatly, the rising of the price leads to the increase of the production cost, the requirement on the product quality is higher and higher, the market competition is fierce, enterprises face the product price competition, the profit is greatly reduced, and the enterprise operation is difficult.
The administrative strength of safety departments on the safety production of enterprises is getting tighter and tighter, the safety production is the guarantee of smooth operation of the enterprises, and the safety production of the enterprises can be guaranteed only by the designed safety production tools.
Wind power castings are developed towards large volume, and the casting requirements are not easily met by adopting the conventional core rod.
Generally, a common core is a simple structure composed of a steel plate, a channel steel, and the like, and is limited to enhancing the overall strength of a sand core and preventing deformation of the sand core, so that the amount of resin sand required for molding is greatly increased, the cost of raw materials is increased, and the time and labor are long in the manufacturing process, and the production efficiency is low. Especially for the casting of the base product in the wind power product, the waste caused by the adoption of the traditional core bone is more serious.
Disclosure of Invention
Wind power castings are developed towards large volume, and the casting requirements are not easily met by adopting the conventional core rod. In order to solve the technical problem, the utility model provides a manufacturing system of a sand core for casting of a wind power base casting, which comprises a core box, a core frame and molding sand; the core bar is positioned in the core box, a gap for manufacturing a core print is reserved between the lower part of the core bar and the bottom surface of the core box, and molding sand is filled in the gap; and molding sand is filled between the core bar and the inner wall of the core box, and the molding sand and the core bar form a sand core.
The structure of the core rod comprises: the coaming, the top surface and the main body support rib; the top edges of the enclosing plates are sequentially connected with the edges of the top surface to enclose a cavity, and the bottom surface of the cavity is connected with main body supporting ribs; the main body support rib is formed by splicing lattices formed by connecting a plurality of rib plates;
the top surface is provided with a plurality of lower sand openings; the two opposite ends of the top surface are provided with a corresponding cold air inlet and a corresponding cold air outlet; the top surface is connected with a hook connecting device.
Furthermore, a detachable baffle is connected to the lower sand opening; the cold air inlet and the cold air outlet are connected with detachable baffles.
Furthermore, the molding sand for making the core print fills the lattices of the main body support ribs and the gaps for making the core print from top to bottom.
Further, the structure of the lifting hook is as follows: the top surface is provided with a through hole, a partition board is vertically connected in the through hole, and the partition board is provided with a lifting hole.
Preferably, the coaming, the top surface and the rib plate are made of steel plates, a welding structure is arranged between the coaming and the top surface, a welding structure is arranged between the rib plate and the rib plate, and a welding structure is arranged between the rib plate and the coaming. The rib plates are provided with through holes which are beneficial to hanging sand.
Preferably, the partition plate is made of a steel plate and welded in the through hole of the hook structure.
Furthermore, a plurality of sand hanging ribs are vertically connected outside the coaming of the core bar. Preferably, the material of hanging the sand muscle is the steel sheet, opens the through-hole that helps hanging the sand on the steel sheet.
In the embodiment, steel folded edges facing the inner cavity of the core are welded on the sand outlet, the cold air inlet, the cold air outlet and the inner edge of the through hole of the hook structure.
The advantages and beneficial effects are that:
1. the sand core manufactured by the system can realize the function of saving raw materials, the weight of the manufactured sand core is lightened, and the lifting risk is reduced.
2. This system can be through reducing the sand volume down, and then reduce the sand time down, reduces intensity of labour, promotes production efficiency.
3. The sand core manufactured by the system reduces the thickness of a sand layer, effectively improves the heat conduction speed, and can accelerate the cooling of the casting when ventilation is carried out on the outer side because the core bone is hollow.
Drawings
FIG. 1 is a schematic view showing a sand core manufacturing system of this example from a top view (a state in which a core rod is placed in a core box and sand is not yet poured)
FIG. 2a is a schematic representation of the configuration of a sand core made by the manufacturing system of the present example;
FIG. 2b is a schematic cross-sectional view of a sand core made by the manufacturing system of the present example;
FIG. 3 is a schematic front view of the core bar of the present example;
FIG. 4 is a schematic reverse view of the mandrel of the present example;
FIG. 5 is a schematic cross-sectional view of a hook attachment;
FIG. 6 is a schematic cross-sectional view of the lower sand port;
in the figure: the sand core comprises a core box 1, a core frame 2, molding sand 3, a sand core 4, a surrounding plate 5, a top surface 6, main body support ribs 7, rib plates 8, lattices 9, a lower sand opening 10, a cold air inlet 11, a cold air outlet 12, a lifting hook connecting device 13, through holes 14 of a lifting hook structure, a partition plate 15, sand hanging ribs 16 and steel folding edges 17.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
referring to fig. 1, a manufacturing system of a foundry sand core for a wind-power base casting includes a core box, a core frame and foundry sand; the core bar is positioned in the core box, a gap for manufacturing a core print is reserved between the lower part of the core bar and the bottom surface of the core box, and molding sand is filled in the gap; and molding sand is filled between the core bar and the inner wall of the core box, and the molding sand and the core bar form a sand core.
With reference to fig. 2 to 4, the core rod has a structure including: the coaming, the top surface and the main body support rib; the top edges of the enclosing plates are sequentially connected with the edges of the top surface to enclose a cavity, and the bottom surface of the cavity is connected with main body supporting ribs; the main body support rib is formed by splicing lattices formed by connecting a plurality of rib plates;
the top surface is provided with a plurality of lower sand openings; the two opposite ends of the top surface are provided with a corresponding cold air inlet and a corresponding cold air outlet; the top surface is connected with a hook connecting device.
The lower sand port is connected with a detachable baffle (in this example, a wood plate can be adopted); the cold air inlet and the cold air outlet are connected with a detachable baffle (in this case, a wood plate can be adopted).
The molding sand for making the core print fills the lattices of the main body support ribs and the gaps for making the core print from top to bottom.
Referring to fig. 5, the hook has the structure: the top surface is provided with a through hole, a partition board is vertically connected in the through hole, and the partition board is provided with a lifting hole.
The coaming, the top surface and the rib plate are made of steel plates, a welding structure is arranged between the coaming and the top surface, a welding structure is arranged between the rib plate and the rib plate, and a welding structure is arranged between the rib plate and the coaming. The rib plates are provided with through holes which are beneficial to hanging sand.
The partition plate is made of steel plates and welded in the through hole of the hook structure.
And a plurality of sand hanging ribs are vertically connected outside the coaming of the core bar. Preferably, the material of hanging the sand muscle is the steel sheet, opens the through-hole that helps hanging the sand on the steel sheet.
Referring to fig. 6, in this example, steel flanges facing the inner cavity of the core are welded to the sand outlet, the cold air inlet, the cold air outlet and the inner edge of the through hole of the hook structure.
The principle and the use of the technical scheme of the embodiment are as follows:
when the core box molding system is used for molding a core box, the core rod of the embodiment is placed in the core box as shown in figure 1, and sand begins to fall.
The space between the outside of the core bar and the core box is used for normal sand discharging.
The inner cavity of the core rod is filled with sand through a sand filling opening until the sand mold is submerged in the main body support rib (used for fixing the core rod and the molding sand); and then all the sand outlet, the air inlet and the air outlet are tightly covered by wood plates. And then, filling the core box with sand, wherein the upper surface of the molding sand layer does not exceed the top surface of the core bar.
And taking the wood board away after the sand discharging is finished, and finishing the molding of the sand core after the sand mold is hardened.
Because the inside cavity of the core bar does not have sand, the sand consumption can be saved, and the weight of the whole sand core is lighter than that of the traditional core bar sand core, so that the lifting process is safer.
And air outlet holes are reserved corresponding to the air inlet and the air outlet in the outer mold molding process.
When the sand core manufactured by the system is used for casting the sand box, after molten iron pouring is finished, the air outlet pipeline of the air blower is placed into the air inlet, cold air is introduced into the air inlet, hot air in the core frame is discharged from the air outlet, casting cooling is accelerated, and efficiency is improved. In addition, when casting, if the heat dissipation of the sand core position in the cavity is slow, the uniformity of the cooling time of molten iron can be affected, local crystal grains of a casting are large, and the overall mechanical performance is affected. The sand core manufactured by the system can accelerate the molten iron cooling time of the position of the sand core to be close to the cooling speed of the outer side of the cavity, and is beneficial to improving the integral mechanical property of the casting.
Claims (7)
1. A manufacturing system of a sand core for casting of a wind power base casting comprises a core box, a core frame and molding sand; the core bar is positioned in the core box, a gap for manufacturing a core print is reserved between the lower part of the core bar and the bottom surface of the core box, and molding sand is filled in the gap; the molding sand is filled between the core bar and the inner wall of the core box, and the molding sand is characterized in that
The structure of the core rod comprises: the coaming, the top surface and the main body support rib; the top edges of the enclosing plates are sequentially connected with the edges of the top surface to enclose a cavity, and the bottom surface of the cavity is connected with main body supporting ribs; the main body support rib is formed by splicing lattices formed by connecting a plurality of rib plates;
the top surface is provided with a plurality of lower sand openings; the two opposite ends of the top surface are provided with a corresponding cold air inlet and a corresponding cold air outlet; the top surface is connected with a hook connecting device.
2. The manufacturing system of the foundry sand core for the wind-power base casting as recited in claim 1, wherein a detachable baffle is connected to said lower sand port; the cold air inlet and the cold air outlet are connected with detachable baffles.
3. The system of claim 1, wherein the sand for the core head fills the lattice of the supporting ribs of the main body and the gaps for the core head from top to bottom.
4. The system of claim 1, wherein the hook is configured to: the top surface is provided with a through hole, a partition board is vertically connected in the through hole, and the partition board is provided with a lifting hole.
5. The manufacturing system of the sand core for casting of the wind-power base casting according to claim 1, wherein the enclosure plate, the top surface and the rib plate are made of steel plates, a welding structure is arranged between the enclosure plate and the top surface, a welding structure is arranged between the rib plate and the rib plate, and a welding structure is arranged between the rib plate and the enclosure plate; the rib plates are provided with through holes which are beneficial to hanging sand.
6. The system of claim 4, wherein the partition is made of steel plate.
7. The manufacturing system of the sand core for casting of the wind power base casting according to claim 1, wherein a plurality of sand hanging ribs are vertically connected to the outside of the coaming of the core bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021215598.3U CN212884876U (en) | 2020-06-28 | 2020-06-28 | Manufacturing system of sand core for casting of wind power base casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021215598.3U CN212884876U (en) | 2020-06-28 | 2020-06-28 | Manufacturing system of sand core for casting of wind power base casting |
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| CN212884876U true CN212884876U (en) | 2021-04-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433810A (en) * | 2022-02-10 | 2022-05-06 | 鞍钢矿山机械制造有限公司 | 10M3Core iron for pouring casting of rear wall casting of electric bucket |
| CN115415484A (en) * | 2022-08-24 | 2022-12-02 | 四川共享铸造有限公司 | Core making method of sand core for casting |
| CN115533042A (en) * | 2022-10-21 | 2022-12-30 | 浙江欧冶达机械制造股份有限公司 | Casting method of large nodular iron casting |
-
2020
- 2020-06-28 CN CN202021215598.3U patent/CN212884876U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433810A (en) * | 2022-02-10 | 2022-05-06 | 鞍钢矿山机械制造有限公司 | 10M3Core iron for pouring casting of rear wall casting of electric bucket |
| CN114433810B (en) * | 2022-02-10 | 2024-02-02 | 鞍钢矿山机械制造有限公司 | 10M 3 Core iron for pouring electric bucket rear wall casting |
| CN115415484A (en) * | 2022-08-24 | 2022-12-02 | 四川共享铸造有限公司 | Core making method of sand core for casting |
| CN115533042A (en) * | 2022-10-21 | 2022-12-30 | 浙江欧冶达机械制造股份有限公司 | Casting method of large nodular iron casting |
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