CN106493308B - A kind of gate valve casting of the low cost without riser - Google Patents
A kind of gate valve casting of the low cost without riser Download PDFInfo
- Publication number
- CN106493308B CN106493308B CN201710013108.8A CN201710013108A CN106493308B CN 106493308 B CN106493308 B CN 106493308B CN 201710013108 A CN201710013108 A CN 201710013108A CN 106493308 B CN106493308 B CN 106493308B
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- cavity
- gate valve
- core
- chamber
- groove profile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a kind of inexpensive gate valve casting without riser, including cope（1）And drag box（2）, cope（1）It is interior to be equipped with upper sluice valve-type chamber（3）, upper sluice valve-type chamber（3）It is interior to be equipped with upper core（4）, the drag box（2）It is interior to be equipped with lower gate valve cavity（5）, lower gate valve cavity（5）It is interior to be equipped with lower core（6）；The upper sluice valve-type chamber（3）Including upper flashboard groove profile chamber（31）, upper flashboard groove profile chamber（31）One end is equipped with upper orifice cavity（32）, upper flashboard groove profile chamber（31）It is equipped with upper rib cavity（33）, upper rib cavity（33）It is equipped with outlet piece（34）.The present invention has the characteristics that gate valve finished surface close structure can be made, improves gate valve product qualified rate, reduces production cost and improve production efficiency.
Description
Technical field
The present invention relates to a kind of gate valve production technologies, are a kind of inexpensive gate valve castings production practical techniques without riser.
Background technology
Its structure of bigbore gate valve is complex, and its thickness is unevenly distributed, using current upper drag box die joint into
During row casting gate valve, after molten iron filling cavity, need to carry out reexpansion, cooling contraction is then carried out from the bottom up, by institute
With the characteristic of spheroidal graphite cast-iron, it can cause the top partly and large area wall thickness bit comparison is loose, structure is not close.And gate valve is cast
Part generally requires to carry out secondary operation after completing to cast, in the surface of gate valve and internal heavy wall position processing bolt hole, bearing
The operations such as hole, so wherein more loose surface are just extremely easily damaged, and cause gate valve that can not use, and are needed to scrap and be cast again
It makes, reduces qualification rate, improve production cost, reduce production efficiency.Moreover, because existing gate valve is being produced
When, it needs to set multiple riser feeding techniques, in this way after the completion of casting, huge running gate system and a large amount of will be formed
Riser, and each riser weighs more kilograms of 30-50, causes the raw material needed for product more, production cost is higher, while has produced
Into also needing to cut off at riser, labor intensity is both increased, is also wasted raw material.Therefore, there is gate valve surfaces for existing technology
Short texture, product qualification rate are low, production cost is high and the problems such as low production efficiency.
Invention content
The object of the present invention is to provide a kind of inexpensive gate valve casting without riser.It has can make gate valve finished product
Surface texture is close, raising gate valve product qualified rate, reduces the characteristics of production cost and raising production efficiency.
Technical scheme of the present invention：A kind of gate valve casting of the low cost without riser, including cope and drag box, cope
Interior to be equipped with upper sluice valve-type chamber, upper sluice valve-type intracavitary is equipped with upper core, lower gate valve cavity, lower sluice valve-type is equipped in the drag box
Intracavitary is equipped with lower core；The upper sluice valve-type chamber includes the upper flashboard groove profile chamber that section is square structure, upper flashboard groove profile chamber one
Upper orifice cavity of the end equipped with semi-cylindrical in configuration, upper flashboard groove profile cavity wall are equipped with rib cavity on one group, upper rib cavity
Top is equipped with outlet piece；The upper core and lower core include the nozzle core of semi-cylindrical in configuration, and nozzle core is equipped with lock
Board slot core, flashboard groove-type core front and rear sides are respectively provided with one group of groove core；Between the upper sluice valve-type chamber and lower gate valve cavity
Equipped with gate valve main body.
In a kind of aforementioned inexpensive gate valve casting without riser, the upper rib cavity is surrounded on upper flashboard groove profile intracavitary
Wall is arranged.
In a kind of aforementioned inexpensive gate valve casting without riser, the lower gate valve cavity includes section for square structure
Lower flashboard groove profile chamber, lower flashboard groove profile chamber one end are equipped with the mo(u)ld bottom half cavity main body of semi-cylindrical in configuration, are set on lower flashboard groove profile cavity wall
There is rib cavity under one group；The lower rib cavity is surrounded on lower flashboard groove profile cavity wall arrangement.
In a kind of aforementioned inexpensive gate valve casting without riser, it is additionally provided on the upper sluice valve-type cavity wall and cope
The corresponding upper annulus cavity of interior nozzle core.
In a kind of aforementioned inexpensive gate valve casting without riser, it is additionally provided on the lower sluice valve-type cavity wall and drag box
The corresponding lower annulus cavity of interior nozzle core.
Compared with prior art, the present invention is by changing parting method of original gate valve in sandbox, in gate valve level
Heart face is die joint, by the symmetrical parting of gate valve, forms two nozzles with semi-cylindrical in configuration, therefore in upper and lower sandbox respectively
The nozzle cavity of semi-cylindrical in configuration is formed, the nozzle cavity of traditional cylindrical structure is substituted, ensure that the upper and lower circular surface of gate valve
Structure it is close so that gate valve is not in that asking for gate valve damage rupture is generated due to material is loose when carrying out secondary operation
Topic improves the qualification rate of gate valve finished product, simultaneously because the raising of qualification rate, there is no need to carry out that casting is repeated several times to make lock
Valve is met the requirements, and is thus just reduced production cost, is improved production efficiency.Using the matter Feeding Characteristics of spheroidal graphite cast-iron, by adopting
Replace traditional riser feeding mode with outlet piece, greatly reduce the use cost of raw material, and be not necessary to it
Working process again without the generation of waste material, alleviates the labor intensity of worker, reduces production cost.In conclusion this hair
It is bright have can make gate valve finished surface close structure, improve gate valve product qualified rate, reduce production cost and improve production
The characteristics of efficiency.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the sectional view of Fig. 1；
Fig. 3 is the side view of Fig. 1；
Fig. 4 is the structure diagram of gate valve finished product.
Description of symbols in attached drawing：1- copes, 2- drag boxs, the upper sluice valve-type chambers of 3-, 4- upper cores, sluice valve-type under 5-
Chamber, core under 6-, 7- nozzle cores, 8- flashboard groove-type cores, 9- groove cores, the upper annulus cavities of 10-, annulus cavity under 11-,
12- gate valve main bodys, 31- upper flashboard groove profile chambers, 32- upper orifice cavities, the upper rib cavities of 33-, 34- outlet pieces, 51- lower flashboard slots
Cavity, 52- mo(u)ld bottom half cavity main bodies, rib cavity under 53-.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples, but not as the foundation limited the present invention.
Embodiment.A kind of gate valve casting of the low cost without riser, is formed as shown in Figures 1 to 4, including cope 1 under
Sandbox 2, cope 1 is interior to be equipped with upper sluice valve-type chamber 3, and upper core 4 is equipped in upper sluice valve-type chamber 3, is equipped with down in the drag box 2
Gate valve cavity 5, lower gate valve cavity 5 is interior to be equipped with lower core 6；The upper sluice valve-type chamber 3 includes the upper flashboard that section is square structure
Groove profile chamber 31,31 one end of upper flashboard groove profile chamber is equipped with the upper orifice cavity 32 of semi-cylindrical in configuration, on 31 inner wall of upper flashboard groove profile chamber
Equipped with rib cavity 33 on one group, upper 33 top of rib cavity is equipped with outlet piece 34；The upper core 4 and lower core 6 include
The nozzle core 7 of semi-cylindrical in configuration, nozzle core 7 are equipped with flashboard groove-type core 8, and 8 front and rear sides of flashboard groove-type core are respectively provided with one
Group groove core 9；Gate valve main body 12 is formed between the upper sluice valve-type chamber 3 and lower gate valve cavity 5.
The upper rib cavity 33 is surrounded on 31 inner wall of upper flashboard groove profile chamber arrangement.
The lower gate valve cavity 5 includes the lower flashboard groove profile chamber 51 that section is square structure, 51 one end of lower flashboard groove profile chamber
Mo(u)ld bottom half cavity main body 52 equipped with semi-cylindrical in configuration, 52 inner wall of lower flashboard groove profile chamber are equipped with rib cavity 53 under one group；Under described
Rib cavity 53 is surrounded on 51 inner wall of lower flashboard groove profile chamber arrangement.
It is additionally provided on upper 3 inner wall of sluice valve-type chamber and the corresponding upper annulus cavity of nozzle core 7 in cope 1
10。
It is additionally provided on lower 4 inner wall of gate valve cavity and the corresponding lower annulus cavity of nozzle core 7 in drag box 2
11。
Cavity and core in the upper and lower sandbox is opposite with facing the half-sectional gate valve external structure cutd open with horizontal parting
It should.
The operation principle of the present invention：The molten iron injection of nodular cast iron material is poured into pipe, molten iron flows into cavity through pouring pipe,
Molten iron discharges the air in cavity from outlet piece, after having molten iron entrance inside outlet piece, shows to fill in cavity
Molten iron then stops casting.Molten iron by from the bottom up, from low temperature to high-temperature shrinkage in the way of carry out up time solidification, in the mistake of cooling
It is carried out in journey from feeding.
Claims (5)
1. a kind of gate valve casting of the low cost without riser, it is characterised in that：Including cope（1）And drag box（2）, cope
（1）It is interior to be equipped with upper sluice valve-type chamber（3）, upper sluice valve-type chamber（3）It is interior to be equipped with upper core（4）, the drag box（2）It is interior to be equipped with lower lock
Valve-type chamber（5）, lower gate valve cavity（5）It is interior to be equipped with lower core（6）；The upper sluice valve-type chamber（3）It is square structure including section
Upper flashboard groove profile chamber（31）, upper flashboard groove profile chamber（31）One end is equipped with the upper orifice cavity of semi-cylindrical in configuration（32）, brake application board slot
Cavity（31）Inner wall is equipped with rib cavity on one group（33）, upper rib cavity（33）Top is equipped with outlet piece（34）；On described
Core（4）With lower core（6）Include the nozzle core of semi-cylindrical in configuration（7）, nozzle core（7）It is equipped with flashboard groove-type core
（8）, flashboard groove-type core（8）Front and rear sides are respectively provided with one group of groove core（9）；The upper sluice valve-type chamber（3）With lower gate valve cavity
（5）Between be equipped with gate valve main body（12）.
2. a kind of inexpensive gate valve casting without riser according to claim 1, it is characterised in that：The upper rib cavity
（33）It is surrounded on upper flashboard groove profile chamber（31）Inner wall is arranged.
3. a kind of inexpensive gate valve casting without riser according to claim 1, it is characterised in that：The lower gate valve cavity
（5）Including the lower flashboard groove profile chamber that section is square structure（51）, lower flashboard groove profile chamber（51）One end is equipped with semi-cylindrical in configuration
Mo(u)ld bottom half cavity main body（52）, lower flashboard groove profile chamber（51 ）Inner wall is equipped with rib cavity under one group（53）；The lower rib cavity
（53）It is surrounded on lower flashboard groove profile chamber（51）Inner wall is arranged.
4. a kind of inexpensive gate valve casting without riser according to claim 1, it is characterised in that：The upper sluice valve-type chamber
（3）It is additionally provided on inner wall and cope（1）Interior nozzle core（7）Corresponding upper annulus cavity（10）.
5. a kind of inexpensive gate valve casting without riser according to claim 3, it is characterised in that：The lower gate valve cavity
（5 ）It is additionally provided on inner wall and drag box（2）Interior nozzle core（7）Corresponding lower annulus cavity（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710013108.8A CN106493308B (en) | 2017-01-09 | 2017-01-09 | A kind of gate valve casting of the low cost without riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710013108.8A CN106493308B (en) | 2017-01-09 | 2017-01-09 | A kind of gate valve casting of the low cost without riser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106493308A CN106493308A (en) | 2017-03-15 |
| CN106493308B true CN106493308B (en) | 2018-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710013108.8A Active CN106493308B (en) | 2017-01-09 | 2017-01-09 | A kind of gate valve casting of the low cost without riser |
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| Country | Link |
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| CN (1) | CN106493308B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580812B (en) * | 2018-04-23 | 2019-11-15 | 芜湖市华邦流体科技有限公司 | A kind of gate valve sand box used for casting |
| CN108273962A (en) * | 2018-04-23 | 2018-07-13 | 芜湖市华邦流体科技有限公司 | A kind of handwheel casting mold of Simple gate valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190874A (en) * | 2014-07-28 | 2014-12-10 | 兰州兰石集团有限公司 | High-temperature high-pressure ultralow sulfur-and-phosphorus valve body casting forming process |
| CN204430198U (en) * | 2015-01-04 | 2015-07-01 | 中核苏阀横店机械有限公司 | Ultra-large type butterfly valve inner chamber shaping core |
| JP5867938B1 (en) * | 2014-12-18 | 2016-02-24 | 株式会社鷹取製作所 | Mold and mold manufacturing method |
| WO2016075844A1 (en) * | 2014-11-14 | 2016-05-19 | 株式会社鷹取製作所 | Mold |
| CN206474641U (en) * | 2017-01-09 | 2017-09-08 | 浙江欧冶达机械制造有限公司 | The inexpensive gate valve casting without rising head |
-
2017
- 2017-01-09 CN CN201710013108.8A patent/CN106493308B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190874A (en) * | 2014-07-28 | 2014-12-10 | 兰州兰石集团有限公司 | High-temperature high-pressure ultralow sulfur-and-phosphorus valve body casting forming process |
| WO2016075844A1 (en) * | 2014-11-14 | 2016-05-19 | 株式会社鷹取製作所 | Mold |
| JP5867938B1 (en) * | 2014-12-18 | 2016-02-24 | 株式会社鷹取製作所 | Mold and mold manufacturing method |
| CN204430198U (en) * | 2015-01-04 | 2015-07-01 | 中核苏阀横店机械有限公司 | Ultra-large type butterfly valve inner chamber shaping core |
| CN206474641U (en) * | 2017-01-09 | 2017-09-08 | 浙江欧冶达机械制造有限公司 | The inexpensive gate valve casting without rising head |
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| Publication number | Publication date |
|---|---|
| CN106493308A (en) | 2017-03-15 |
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Address after: 313009 Zhengdao Road 333, Lianshi Town, Nanxun District, Huzhou City, Zhejiang Province Patentee after: Zhejiang Oyeda Machinery Manufacturing Co., Ltd. Address before: 313013 South Side of 18Hao Road, Lianshi Town Industrial Function Zone, Nanxun District, Huzhou City, Zhejiang Province (333 Lianxi Avenue) Patentee before: Zhejiang Ou Ye reaches Machinery Manufacturing Co., Ltd. |
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