CN202984581U - Vertical type green sand inner shell type modeling structure - Google Patents

Vertical type green sand inner shell type modeling structure Download PDF

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Publication number
CN202984581U
CN202984581U CN 201320003572 CN201320003572U CN202984581U CN 202984581 U CN202984581 U CN 202984581U CN 201320003572 CN201320003572 CN 201320003572 CN 201320003572 U CN201320003572 U CN 201320003572U CN 202984581 U CN202984581 U CN 202984581U
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China
Prior art keywords
sand
shell
shell mould
modeling
cast
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CN 201320003572
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Chinese (zh)
Inventor
刘德太
高杨
崔志强
吴振红
韩兵
李程
朱昊
万玉青
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FUXIN JIUFENG HYDRAULIC Co Ltd
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FUXIN JIUFENG HYDRAULIC Co Ltd
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Abstract

The utility model belongs to casting equipment in the machinery industry, and particularly relates to a vertical type green sand inner shell type modeling structure. The vertical type green sand inner shell type modeling structure comprises a sand box (3), casting sand (2), a cast part (4) and a core (1), wherein a parting line is available between an upper sand box and a lower sand box (3), the casting sand (2) in the lower sand box (3) forms a precoated sand shell mould (5) according to the shape of the cast part (4), the core (1) is arranged in the precoated sand shell mould (5), so that a gap having the shape of the cast part (4) is formed between the core (1) and the precoated sand shell mould (5), a dead head (6) is arranged above a parting line X between the upper sand box (3) and the lower sand box (3), and the dead head (6) is communicated with the gap having the shape of the cast part (4). According to the vertical type green sand inner shell type modeling structure, the venting capacity can be improved, the probability for generating blow holes can be reduced, and the yield of the cast part can be improved by 15%; a shell type enhanced type cavity hardness dead head is adopted in the process of casting, so that the feeding capacity can be enhanced, and the product quality can be improved; and the height of the shell type dead head is lower than that of the casting sand by 40%, so that the technical product yield can be improved, and the consumption of raw materials can be reduced.

Description

Shell mould modeling structure in vertical damp sand
Technical field
The utility model belongs to machinery industry casting equipment, particularly shell mould modeling structure in a kind of vertical damp sand.
Background technology
At present, at the foundry goods such as hydraulic pump or the hydraulic valve cast iron that all belongs to the high trade mark used, its hardness is very high, therefore high for the feeding of foundry goods and sand mold, core exhaust requirements, but traditional green sand moulding and die cavity hardness do not reach requirement, cause molten iron to expand, cause difficulty to feeding a casting, the mould somatotype of damp sand can only divide from the centre of mould on the other hand, and because the mould of top box has certain height, feeding head gets increases height thereupon, rising head is higher, molten iron is just larger to the static pressure that sand mold produces, and sand mold is expanded also large, and feeding is also just more difficult.In addition, due to the limitation that is subjected to tidal stencils somatotype technique, the core in the sand mold chamber is the accumbency state, causes exhaust problem at casting cycle, makes foundry goods easily produce gas hole defect, affects the quality of product.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, and a kind of sand mold chamber hardness that improves is provided, and is conducive to shell mould modeling structure in the vertical damp sand of gas discharging and feeding a casting.
The technical scheme that the utility model technical solution problem adopts is: in vertical damp sand, the shell mould modeling structure comprises sandbox, molding sand, foundry goods, fuse, be characterized in being parting line between upper and lower sandbox, molding sand in drag box is pressed foundry goods shape precoated sand shell mould processed, cored in the precoated sand shell mould, make type between fuse and precoated sand shell mould become the space of foundry goods shape, be provided with rising head above the parting line of cope and drag box, rising head is communicated with the space of foundry goods shape.
The beneficial effects of the utility model are: in vertical damp sand, the shell mould modeling structure has strengthened exhaust capacity, reduce the probability that bleb produces, make the yield rate of foundry goods improve 15%, in when casting owing to adopting shell mould to strengthen die cavity hardness rising head, feeding capacity also is enhanced, has improved the quality of product, the shell mould rising head reduces by 40% than the height of sand mold, improve product yield, reduce raw-material consumption.
Description of drawings
Illustrate with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of shell mould modeling structure in vertical damp sand.
In figure, the 1-fuse; The 2-molding sand; The 3-sandbox; The 4-foundry goods; 5-precoated sand shell mould; The 6-rising head; The X-parting line.
The specific embodiment
Embodiment, with reference to accompanying drawing 1, in vertical damp sand, the shell mould modeling structure is to be parting line X in the middle of vertical upper drag box 3, next precoated sand shell mould 5 in the middle of molding sand 2 in sandbox 3 below, precoated sand shell mould 5 is with making in hot box of external form film tool, at the interior threading fuse 1 of precoated sand shell mould 5, make the space that forms foundry goods 4 shapes between fuse 1 and precoated sand shell mould 5, fuse 1 and 5 typings of precoated sand shell mould are cemented.Be communicated with foundry goods 4 shape spaces in cope 3 on parting line X and be provided with rising head 6, the foundry goods liquation of the high trade mark forms foundry goods 4 in rising head 6 is cast to space between precoated sand shell mould 5 and fuse 1, complete simultaneously the feeding process.

Claims (1)

1. shell mould modeling structure in a vertical damp sand, comprise sandbox (3), molding sand (2), foundry goods (4), fuse (1), it is characterized in that upper, be parting line between drag box (3), molding sand (2) in drag box (3) is pressed foundry goods (4) shape precoated sand shell mould processed (5), cored (1) in precoated sand shell mould (5), make type between fuse (1) and precoated sand shell mould (5) become the space of foundry goods (4) shape, be provided with rising head (6) above the parting line (X) of cope (3) and drag box (3), rising head (6) is communicated with the space of foundry goods (4) shape.
CN 201320003572 2013-01-06 2013-01-06 Vertical type green sand inner shell type modeling structure Active CN202984581U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320003572 CN202984581U (en) 2013-01-06 2013-01-06 Vertical type green sand inner shell type modeling structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320003572 CN202984581U (en) 2013-01-06 2013-01-06 Vertical type green sand inner shell type modeling structure

Publications (1)

Publication Number Publication Date
CN202984581U true CN202984581U (en) 2013-06-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320003572 Active CN202984581U (en) 2013-01-06 2013-01-06 Vertical type green sand inner shell type modeling structure

Country Status (1)

Country Link
CN (1) CN202984581U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104043780A (en) * 2014-06-24 2014-09-17 南通华东油压科技有限公司 Vane pump casting mold and casting process thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104043780A (en) * 2014-06-24 2014-09-17 南通华东油压科技有限公司 Vane pump casting mold and casting process thereof

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