CN206474641U - The inexpensive gate valve casting without rising head - Google Patents

The inexpensive gate valve casting without rising head Download PDF

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Publication number
CN206474641U
CN206474641U CN201720019613.9U CN201720019613U CN206474641U CN 206474641 U CN206474641 U CN 206474641U CN 201720019613 U CN201720019613 U CN 201720019613U CN 206474641 U CN206474641 U CN 206474641U
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CN
China
Prior art keywords
die cavity
gate valve
core
chamber
groove profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201720019613.9U
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Chinese (zh)
Inventor
宁林祥
程邦军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Ou Ye Reaches Machinery Manufacturing Co Ltd
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Zhejiang Ou Ye Reaches Machinery Manufacturing Co Ltd
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Priority to CN201720019613.9U priority Critical patent/CN206474641U/en
Application granted granted Critical
Publication of CN206474641U publication Critical patent/CN206474641U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of inexpensive gate valve casting without rising head, including cope(1)And drag box(2), cope(1)It is interior to be provided with upper sluice valve-type chamber(3), upper sluice valve-type chamber(3)It is interior to be provided with upper core(4), described drag box(2)It is interior to be provided with lower gate valve die cavity(5), lower gate valve die cavity(5)It is interior to be provided 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 provided with upper orifice die cavity(32), upper flashboard groove profile chamber(31)It is provided with upper rib die cavity(33), upper rib die cavity(33)It is provided with outlet piece(34).The utility model has the characteristics of can making gate valve finished surface close structure, raising gate valve product qualified rate, reduction production cost and improve production efficiency.

Description

The inexpensive gate valve casting without rising head
Technical field
The utility model is related to a kind of gate valve production technology, is a kind of practical skill of gate valve castings production of the low cost without rising head Art.
Background technology
Its structure of bigbore gate valve is complex, and its thickness skewness, is entered using current upper drag box die joint During row casting gate valve, it is necessary to carry out reexpansion after molten iron filling die cavity, 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 casting is completed, in the surface of gate valve and internal heavy wall position processing bolt hole, bearing Hole etc. is operated, and so wherein more loose surface is just extremely easily damaged, and is caused gate valve not use and is cast again, it is necessary to scrap Make, reduce qualification rate, improve production cost, reduce production efficiency.Existing gate valve is additionally, since to be produced When, it is necessary to set multiple riser feeding techniques, so after the completion of casting, huge running gate system will be formed and substantial amounts of emitted Mouthful, and each rising head weighs many kilograms of 30-50, the raw material needed for causing product is more, and production cost is higher, is completed while producing Also need to cut off at rising head, both add labor intensity, also waste raw material.Therefore, existing technology has gate valve surface knot Structure is loose, product qualification rate is low, production cost is high and the problems such as low production efficiency.
Utility model content
The purpose of this utility model is that there is provided a kind of inexpensive gate valve casting without rising head.It, which has, can make gate valve The characteristics of finished surface close structure, raising gate valve product qualified rate, reduction production cost and raising production efficiency.
The technical solution of the utility model:The inexpensive gate valve casting without rising head, including cope and drag box, cope Interior to be provided with upper sluice valve-type chamber, upper sluice valve-type intracavitary is provided with upper core, described drag box and is provided with lower gate valve die cavity, lower sluice valve-type Intracavitary is provided 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 die cavity of the end provided with semi-cylindrical in configuration, upper flashboard groove profile cavity wall is provided with rib die cavity, upper rib die cavity on one group Top is provided with outlet piece;The upper core and lower core include the mouth of pipe core of semi-cylindrical in configuration, and mouth of pipe core is provided 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 die cavity Provided with gate valve main body.
In the foregoing inexpensive gate valve casting without rising head, the upper rib die cavity is surrounded on upper flashboard groove profile intracavitary wall cloth Put.
In the foregoing inexpensive gate valve casting without rising head, the lower gate valve die cavity includes the lower lock that section is square structure Board slot die cavity, lower flashboard groove profile chamber one end is provided with the mo(u)ld bottom half cavity main body of semi-cylindrical in configuration, and lower flashboard groove profile cavity wall is provided with one The lower rib die cavity of group;The lower rib die cavity is surrounded on lower flashboard groove profile cavity wall arrangement.
In the foregoing inexpensive gate valve casting without rising head, be additionally provided with the upper sluice valve-type cavity wall with cope The corresponding upper annulus die cavity of mouth of pipe core.
In the foregoing inexpensive gate valve casting without rising head, be additionally provided with the lower sluice valve-type cavity wall with drag box The corresponding lower annulus die cavity of mouth of pipe core.
Compared with prior art, the utility model is by changing parting method of original gate valve in sandbox, with gate valve water Flat median plane is die joint, by the symmetrical parting of gate valve, forms two mouths of pipe with semi-cylindrical in configuration, therefore in upper and lower sandbox The mouth of pipe die cavity of semi-cylindrical in configuration is formed respectively, substitutes the mouth of pipe die cavity of traditional cylindrical structure, it is ensured that the upper and lower circle of gate valve Surface texture it is close so that gate valve carry out secondary operation when be not in produce gate valve damage rupture because material is loose Problem, improves the qualification rate of gate valve finished product, simultaneously because the raising of qualification rate, avoids the need for carrying out that casting is repeated several times making Gate valve, which is met, to be required, is thus just reduced production cost, is improved production efficiency.Using the matter Feeding Characteristics of spheroidal graphite cast-iron, pass through Replace traditional riser feeding mode using outlet piece, greatly reduce the use cost of raw material, but also need not pair Its working process, generation without waste material again, alleviates the labor intensity of workman, reduces production cost.In summary, originally Utility model, which has, can make gate valve finished surface close structure, improve gate valve product qualified rate, reduction production cost and carry The characteristics of high efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is Fig. 1 sectional view;
Fig. 3 is Fig. 1 side view;
Fig. 4 is the structural representation of gate valve finished product.
Description of symbols in accompanying drawing:Sluice valve-type under 1- copes, 2- drag boxs, the upper sluice valve-type chambers of 3-, 4- upper cores, 5- Annulus die cavity under core under chamber, 6-, 7- mouth of pipe cores, 8- flashboard groove-type cores, 9- groove cores, the upper annulus die cavities of 10-, 11-, 12- gate valve main bodys, 31- upper flashboard groove profile chambers, 32- upper orifice die cavities, the upper rib die cavities of 33-, 34- outlet pieces, 51- lower flashboards Rib die cavity under groove profile chamber, 52- mo(u)ld bottom half cavity main bodies, 53-.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, but is limited not as to the utility model Foundation.
Embodiment.The inexpensive gate valve casting without rising head, is constituted as shown in Figures 1 to 4, including cope 1 and drag box 2, interior be provided with upper sluice valve-type chamber 3, upper sluice valve-type chamber 3 of cope 1 is provided with upper core 4, provided with lower gate valve in described drag box 2 Lower core 6 is provided with die cavity 5, lower gate valve die cavity 5;The upper sluice valve-type chamber 3 includes the upper flashboard groove profile that section is square structure Chamber 31, one end of upper flashboard groove profile chamber 31 is provided with the upper orifice die cavity 32 of semi-cylindrical in configuration, and the inwall of upper flashboard groove profile chamber 31 is provided with Rib die cavity 33 on one group, the upper top of rib die cavity 33 is provided with outlet piece 34;The upper core 4 and lower core 6 include semicircle The mouth of pipe core 7 of rod structure, mouth of pipe core 7 be provided with flashboard groove-type core 8, the front and rear sides of flashboard groove-type core 8 be respectively provided with one group it is recessed Groove-type core 9;Gate valve main body 12 is formed between the upper sluice valve-type chamber 3 and lower gate valve die cavity 5.
The upper rib die cavity 33 is surrounded on the inwall of upper flashboard groove profile chamber 31 arrangement.
The lower gate valve die cavity 5 includes the lower flashboard groove profile chamber 51 that section is square structure, the one end of lower flashboard groove profile chamber 51 Mo(u)ld bottom half cavity main body 52 provided with semi-cylindrical in configuration, the inwall of lower flashboard groove profile chamber 51 is provided with rib die cavity 53 under one group;Under described Rib die cavity 53 is surrounded on the inwall of lower flashboard groove profile chamber 51 arrangement.
The upper annulus die cavity corresponding with the mouth of pipe core 7 in cope 1 is additionally provided with the upper inwall of sluice valve-type chamber 3 10。
The lower annulus die cavity corresponding with the mouth of pipe core 7 in drag box 2 is additionally provided with the lower inwall of gate valve die cavity 5 11。
Die cavity and core in the upper and lower sandbox is relative with the half-sectional gate valve external structure for facing to cut open with horizontal parting Should.
Operation principle of the present utility model:The molten iron injection of nodular cast iron material is poured into pipe, molten iron is flowed into through pouring pipe Die cavity, molten iron discharges the air in die cavity from outlet piece, after having molten iron entrance inside outlet piece, shows in die cavity Full of molten iron, then stop casting.Molten iron by from the bottom up, from low temperature to high-temperature shrinkage in the way of carry out up time solidification, cooling During carry out from feeding.

Claims (5)

1. the inexpensive gate valve casting without rising head, it is characterised in that:Including cope (1) and drag box (2), cope (1) is interior Provided with upper sluice valve-type chamber (3), it is provided with upper sluice valve-type chamber (3) in upper core (4), described drag box (2) and is provided with lower sluice valve-type Lower core (6) is provided with chamber (5), lower gate valve die cavity (5);The upper sluice valve-type chamber (3) includes the brake application that section is square structure Board slot die cavity (31), upper flashboard groove profile chamber (31) one end is provided with the upper orifice die cavity (32) of semi-cylindrical in configuration, upper flashboard groove profile chamber (31) inwall is provided with rib die cavity (33) on one group, and upper rib die cavity (33) top is provided with outlet piece (34);The upper core (4) and lower core (6) includes the mouth of pipe core (7) of semi-cylindrical in configuration, mouth of pipe core (7) is provided with flashboard groove-type core (8), lock Board slot core (8) front and rear sides are respectively provided with one group of groove core (9);Between the upper sluice valve-type chamber (3) and lower gate valve die cavity (5) Provided with gate valve main body (12).
2. gate valve casting of the low cost without rising head according to claim 1, it is characterised in that:The upper rib die cavity (33) It is surrounded on upper flashboard groove profile chamber (31) inwall arrangement.
3. gate valve casting of the low cost without rising head according to claim 1, it is characterised in that:The lower gate valve die cavity (5) Including the lower flashboard groove profile chamber (51) that section is square structure, lower flashboard groove profile chamber (51) one end is provided with the mo(u)ld bottom half of semi-cylindrical in configuration Cavity main body (52), lower flashboard groove profile chamber (51) inwall is provided with rib die cavity (53) under one group;Lower rib die cavity (53) ring It is around in lower flashboard groove profile chamber (51) inwall arrangement.
4. gate valve casting of the low cost without rising head according to claim 1, it is characterised in that:The upper sluice valve-type chamber (3) The upper annulus die cavity (10) corresponding with the mouth of pipe core (7) in cope (1) is additionally provided with inwall.
5. gate valve casting of the low cost without rising head according to claim 3, it is characterised in that:The lower gate valve die cavity (5) The lower annulus die cavity (11) corresponding with the mouth of pipe core (7) in drag box (2) is additionally provided with inwall.
CN201720019613.9U 2017-01-09 2017-01-09 The inexpensive gate valve casting without rising head Withdrawn - After Issue CN206474641U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720019613.9U CN206474641U (en) 2017-01-09 2017-01-09 The inexpensive gate valve casting without rising head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720019613.9U CN206474641U (en) 2017-01-09 2017-01-09 The inexpensive gate valve casting without rising head

Publications (1)

Publication Number Publication Date
CN206474641U true CN206474641U (en) 2017-09-08

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Application Number Title Priority Date Filing Date
CN201720019613.9U Withdrawn - After Issue CN206474641U (en) 2017-01-09 2017-01-09 The inexpensive gate valve casting without rising head

Country Status (1)

Country Link
CN (1) CN206474641U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106493308A (en) * 2017-01-09 2017-03-15 浙江欧冶达机械制造有限公司 A kind of gate valve foundry goods of low cost without rising head
CN111136223A (en) * 2020-01-07 2020-05-12 浙江精恒铜业股份有限公司 Impeller casting process method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106493308A (en) * 2017-01-09 2017-03-15 浙江欧冶达机械制造有限公司 A kind of gate valve foundry goods of low cost without rising head
CN106493308B (en) * 2017-01-09 2018-06-15 浙江欧冶达机械制造有限公司 A kind of gate valve casting of the low cost without riser
CN111136223A (en) * 2020-01-07 2020-05-12 浙江精恒铜业股份有限公司 Impeller casting process method

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AV01 Patent right actively abandoned

Granted publication date: 20170908

Effective date of abandoning: 20180615

AV01 Patent right actively abandoned