CN104226918A - Valve sand casting mold - Google Patents
Valve sand casting mold Download PDFInfo
- Publication number
- CN104226918A CN104226918A CN201410515503.2A CN201410515503A CN104226918A CN 104226918 A CN104226918 A CN 104226918A CN 201410515503 A CN201410515503 A CN 201410515503A CN 104226918 A CN104226918 A CN 104226918A
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- Prior art keywords
- sand
- core
- mold
- valve
- sand mold
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Abstract
The invention discloses a valve sand casting mold, belongs to the field of casting molding, and in particular relates to a sand casting mold. The mold comprises a sand box, a sand mold, a mold core and an anti-adhering coating, wherein the mold core is of a structure with one main core and four auxiliary cores; the auxiliary cores are arranged around the main core; the four auxiliary cores are connected together through an annular pouring gate; an opening is formed in the annular pouring gate and is connected with a main pouring gate; a plurality of exhaust holes are formed in the upper side of the body of the main core; the anti-adhering coating is arranged on one surface, on which a cavity is formed by the sand mold and the mold core, of the sand mold, and coats the outer side of the sand mold. By adopting the valve sand casting mold, the defects that a cast piece is relatively poor in size precision after being processed for multiple times, and the probability of sand washing, sand inclusion and pores is high, are effectively overcome.
Description
Technical field
The invention belongs to casting and molding field, be specifically related to a kind of valve sand mold casting mold.
Technical background
The casting method of foundry goods is produced in sand casting in sand mold.Steel, iron and most of non-ferrous alloy casting all can obtain with sand mould casting method.The Modeling Material used due to sand casting is cheap and easy to get, and Casting mold manufacturing is easy, and to the single-piece production of foundry goods, produce by batch and produce in a large number and all can adapt to, for a long time, be the basic technology in Foundry Production always.
At present, valve foundry goods mainly adopts greensand mold dry sand core to cast, and the foundry goods of production is repeatedly finished size precision is poor, and easily produce the defects such as sand washing, burning into sand, pore, meanwhile, the peeling of foundry goods is also effort of taking a lot of work.
Summary of the invention
The invention provides a kind of valve sand mold casting mold, the casting accuracy solving production is poor, produces the problems such as sand washing, burning into sand, sand holes and casting falling sand.
For achieving the above object, the technical solution used in the present invention is as follows:
Valve sand mold casting mold, comprises sandbox, sand mold, core and anti-stick coating, it is characterized in that: core adopts the auxiliary cored structure of a main core four; Described auxiliary core is centered around main core surrounding, and four auxiliary cores are linked together by the running channel of annular, and ring gate has an opening to be connected on main running channel; Multiple steam vent is provided with on the upside of the core body of described main core; Described anti-stick coating forms the one side of cavity at sand mold and core, is coated in outside sand mold.
Described sandbox has horn-like sprue gate.
Beneficial effect of the present invention is:
One, adopt the how auxiliary cored structure of a main core, the discreet portions such as the bolt hole of auxiliary core on casting valve, ensure that the disposal molding of foundry goods, avoid repeatedly processing, and improve casting accuracy;
Two, outside sand mold, scribble anti-stick coating, effectively reduce foundry goods burning into sand, the problems such as sand hole, improve casting yield.
Three, on the core body of core, have multiple steam vent, improve the venting quality in casting process.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark in figure: 1 is sandbox, and 2 is sand mold, and 3 is main core, and 4 is anti-stick coating, and 5 is auxiliary core, and 6 is sprue gate, and 7 is ring gate, and 8 is pore.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is further described.
As shown in Figure 1, valve sand mold casting mold, comprises sandbox 1, and sand mold 2, core and anti-stick coating 4, is characterized in that: core adopts a main core 3 four auxiliary core 5 structure, core has multiple pore 8.Valve sand mold casting mold of the present invention, sandbox 1 arranges bell mouth shape sprue gate 6, the hidden danger avoiding molten iron to spill bringing.Core adopts the auxiliary cored structure of a main core four, and main core is used for the main body of casting valve, the bolt hole of auxiliary core on casting valve.The valve one-shot forming of producing thus, need not carry out secondary operations auger shell keyhole again, ensure that the precision of valve and attractive in appearance.Be interconnected with ring gate 7 between main core 3 and auxiliary core 5.The upper and lower both sides of main core all have steam vent 8, strengthen exhaust performance.The molding sand building sand mold both can adopt cheap but that effect is poor common green-sand, also can adopt price costly but the good resin sand of effect, was certainly also fine for both are used in combination.The one side forming cavity at molding sand and core coats anti-stick coating, after having built, effectively can reduce knockout when removing sand mold, save knockout treatment step man-hour, enhance productivity.
Claims (2)
1. a valve sand mold casting mold, comprises sandbox, sand mold, core and anti-stick coating, it is characterized in that: core adopts the auxiliary cored structure of a main core four; Described auxiliary core is centered around main core surrounding, and four auxiliary cores are linked together by the running channel of annular, and ring gate has an opening to be connected on main running channel; Multiple steam vent is provided with on the upside of the core body of described main core; Described anti-stick coating forms the one side of cavity at sand mold and core, is coated in outside sand mold.
2. valve sand mold casting mold as claimed in claim 1, is characterized in that: described sandbox has horn-like sprue gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515503.2A CN104226918A (en) | 2014-09-30 | 2014-09-30 | Valve sand casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515503.2A CN104226918A (en) | 2014-09-30 | 2014-09-30 | Valve sand casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104226918A true CN104226918A (en) | 2014-12-24 |
Family
ID=52216320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410515503.2A Pending CN104226918A (en) | 2014-09-30 | 2014-09-30 | Valve sand casting mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104226918A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001416A (en) * | 2016-07-14 | 2016-10-12 | 辽宁森远增材制造科技有限公司 | Laser 3D printer capable of finishing high-precision sand mold manufacture at one step |
| CN106001448A (en) * | 2016-06-23 | 2016-10-12 | 太仓市顺昌锻造有限公司 | Mold used for casting valve body |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201751050U (en) * | 2010-04-20 | 2011-02-23 | 繁昌县金科铸造有限责任公司 | Cast forming lower die of gate valve cover |
| CN201832952U (en) * | 2010-11-04 | 2011-05-18 | 广东省韶铸集团有限公司 | Pouring cup convenient for removing after being poured |
| CN202824536U (en) * | 2012-11-09 | 2013-03-27 | 济南方德利模具有限公司 | Improved core |
| CN203109172U (en) * | 2013-04-01 | 2013-08-07 | 溧阳市新力机械铸造有限公司 | Improved forming casting die for valve body castings |
| CN203356534U (en) * | 2013-06-27 | 2013-12-25 | 徐州亿龙玉石有限公司 | Sand molding pouring cup |
| CN203578677U (en) * | 2013-10-18 | 2014-05-07 | 重庆市极鼎金属铸造有限责任公司 | Sand mould casting die |
| CN204075084U (en) * | 2014-09-30 | 2015-01-07 | 成都市翻鑫家科技有限公司 | A kind of valve sand mold casting mold |
-
2014
- 2014-09-30 CN CN201410515503.2A patent/CN104226918A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201751050U (en) * | 2010-04-20 | 2011-02-23 | 繁昌县金科铸造有限责任公司 | Cast forming lower die of gate valve cover |
| CN201832952U (en) * | 2010-11-04 | 2011-05-18 | 广东省韶铸集团有限公司 | Pouring cup convenient for removing after being poured |
| CN202824536U (en) * | 2012-11-09 | 2013-03-27 | 济南方德利模具有限公司 | Improved core |
| CN203109172U (en) * | 2013-04-01 | 2013-08-07 | 溧阳市新力机械铸造有限公司 | Improved forming casting die for valve body castings |
| CN203356534U (en) * | 2013-06-27 | 2013-12-25 | 徐州亿龙玉石有限公司 | Sand molding pouring cup |
| CN203578677U (en) * | 2013-10-18 | 2014-05-07 | 重庆市极鼎金属铸造有限责任公司 | Sand mould casting die |
| CN204075084U (en) * | 2014-09-30 | 2015-01-07 | 成都市翻鑫家科技有限公司 | A kind of valve sand mold casting mold |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001448A (en) * | 2016-06-23 | 2016-10-12 | 太仓市顺昌锻造有限公司 | Mold used for casting valve body |
| CN106001416A (en) * | 2016-07-14 | 2016-10-12 | 辽宁森远增材制造科技有限公司 | Laser 3D printer capable of finishing high-precision sand mold manufacture at one step |
| CN106001416B (en) * | 2016-07-14 | 2018-08-14 | 辽宁森远增材制造科技有限公司 | The disposable laser 3D printing machine completed high-precision sand mold and made |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141224 |