CN202951864U - Active exhaust device - Google Patents

Active exhaust device Download PDF

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Publication number
CN202951864U
CN202951864U CN 201220542941 CN201220542941U CN202951864U CN 202951864 U CN202951864 U CN 202951864U CN 201220542941 CN201220542941 CN 201220542941 CN 201220542941 U CN201220542941 U CN 201220542941U CN 202951864 U CN202951864 U CN 202951864U
Authority
CN
China
Prior art keywords
compressed air
vacuum extractor
pipeline
exhaust
mould
Prior art date
Application number
CN 201220542941
Other languages
Chinese (zh)
Inventor
陈志�
王志学
李甲天
Original Assignee
中信戴卡股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 中信戴卡股份有限公司 filed Critical 中信戴卡股份有限公司
Priority to CN 201220542941 priority Critical patent/CN202951864U/en
Application granted granted Critical
Publication of CN202951864U publication Critical patent/CN202951864U/en

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Abstract

The utility model discloses an active exhaust device. The active exhaust device consists of an electromagnetic valve (1), a vacuumizing device compressed air inlet (2), a vacuumizing device compressed air outlet (3), a vacuumizing device negative pressure port (4), a mould exhaust plug (5) and pipelines (6), wherein the electromagnetic valve (1) is connected with the vacuumizing device compressed air inlet (2) through one pipeline; and the mould exhaust plug (5) is connected with the vacuumizing device negative pressure port (4) through one pipeline. The active exhaust device has the advantage of solving the problem that casting defects are caused because the exhaust of a mould is blocked and the cavity pressure of the mould is formed in the mould filling process of low-pressure casting of liquid metal.

Description

A kind of initiative exhaust device
Technical field
The utility model relates to a kind of exhaust apparatus, relates to specifically a kind of low pressure casting die initiative exhaust device of compressed air as power that utilize.
Background technology
In low pressure casting process, liquid metal fills type under pressure in mold cavity, mold cavity is airtight die cavity, need to discharge rapidly mould in the process that gas in die cavity is filled with at liquid metal, mostly adopt a large amount of venting plugs in low pressure casting die, the cavity pressure that the gap mode produces while relying on liquid metal to fill type carrys out exhaust, existence due to cavity pressure, in mold filling process of casting usually with the volume gas, the final defect that produces bleb, even bring the casting flaw of misrun, and the mode of employing initiative exhaust, at the liquid metal cavity filling process simultaneously, exhaust apparatus is outwards extracted the gas in die cavity out, reduce the pressure in mold cavity, the foundry goods misrun of freely not bringing due to exhaust will be reduced, the defects such as pore, also will reduce the quantity of venting plug, reduce the Mould Machining manufacturing cost.
Summary of the invention
The technical problem that the utility model solves is for low pressure casting die provides a kind of low pressure casting die initiative exhaust device of compressed air as power that utilize, to reduce the casting flaw freely do not caused due to die venting.
The technical solution adopted in the utility model is: a kind of initiative exhaust device, by magnetic valve, vacuum extractor, pipeline, die venting plug, formed, the compressed-air actuated unlatching of solenoid control, vacuum extractor connects venting plug by pipeline, and the die venting plug is installed on mould.
As a kind of improvement, the utility model is comprised of magnetic valve, vacuum extractor compressed air inlet, vacuum extractor compressed air outlet, vacuum extractor negative pressure mouth, die venting plug, pipeline, magnetic valve is connected with the vacuum extractor compressed air inlet by pipeline, and the die venting plug is connected with vacuum extractor negative pressure mouth by pipeline.
The signal of telecommunication that magnetic valve is set according to die casting machine, when low pressure casting fills type and starts, magnetic valve starts, compressed air line is open-minded, vacuum extractor work, vacuum extractor is by pipeline connecting mold venting plug, realize in venting plug that certain vacuum is arranged, make gas active flow in mold cavity to the die venting plug, reduce in mold cavity the cavity pressure formed while due to liquid metal, filling type.
The beneficial effects of the utility model are, solve in low pressure casting liquid metal cavity filling process die venting not smooth, form mold cavity pressure, cause the problem of casting flaw.
The accompanying drawing explanation
Fig. 1 is the utility model schematic diagram.
In figure: the 1-magnetic valve; 2-vacuum extractor compressed air inlet; 3-vacuum extractor compressed air outlet; 4-vacuum extractor negative pressure mouth; 5-die venting plug; The 6-pipeline;
The specific embodiment
The technical solution adopted in the utility model is: magnetic valve 1, vacuum extractor compressed air inlet 2, vacuum extractor compressed air outlet 3, vacuum extractor negative pressure mouth 4, die venting plug 5, pipeline 6, consist of.Magnetic valve 1 is connected with vacuum extractor compressed air inlet 2 by pipeline 6, and die venting plug 5 is connected with vacuum extractor negative pressure mouth 4 by pipeline 6.
The signal of telecommunication that magnetic valve 1 is set according to die casting machine, when low pressure casting fills type and starts, magnetic valve starts, compressed air line 6 is open-minded, the work of compressed air vacuum extractor, vacuum extractor negative pressure mouth 4 connecting mold venting plugs 5, realize in venting plug that certain vacuum is arranged, make gas active flow in mold cavity to the die venting plug, reduce in mold cavity the cavity pressure formed while due to liquid metal, filling type.
Magnetic valve 1 is opened, compressed air enters vacuum extractor compressed air inlet 2 by pipeline 6, at vacuum extractor compressed air outlet 3, flow out, produce negative pressure at vacuum extractor negative pressure mouth 4, die venting plug 5 connects vacuum extractor negative pressure mouth 4 by pipeline 6, at the interior generation certain vacuum of die venting plug 5 degree, initiatively mold cavity gas is discharged.

Claims (1)

1. an initiative exhaust device, by magnetic valve (1), vacuum extractor compressed air inlet (2), vacuum extractor compressed air outlet (3), vacuum extractor negative pressure mouth (4), die venting plug (5), pipeline (6), formed, it is characterized in that: magnetic valve (1) is connected with vacuum extractor compressed air inlet (2) by pipeline (6), and die venting plug (5) is connected with vacuum extractor negative pressure mouth (4) by pipeline (6).
CN 201220542941 2012-10-23 2012-10-23 Active exhaust device CN202951864U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220542941 CN202951864U (en) 2012-10-23 2012-10-23 Active exhaust device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220542941 CN202951864U (en) 2012-10-23 2012-10-23 Active exhaust device

Publications (1)

Publication Number Publication Date
CN202951864U true CN202951864U (en) 2013-05-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220542941 CN202951864U (en) 2012-10-23 2012-10-23 Active exhaust device

Country Status (1)

Country Link
CN (1) CN202951864U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104399896A (en) * 2014-11-15 2015-03-11 安徽省新方尊铸造科技有限公司 Technology for improving metal mold casting moulding by negative pressure method
CN105458179A (en) * 2016-01-15 2016-04-06 无锡蠡湖增压技术股份有限公司 Metal mold with ventilation equipment
CN105798263A (en) * 2016-05-01 2016-07-27 中信戴卡股份有限公司 Gas exhausting device for low-pressure casting die for aluminum alloy vehicle wheel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104399896A (en) * 2014-11-15 2015-03-11 安徽省新方尊铸造科技有限公司 Technology for improving metal mold casting moulding by negative pressure method
CN105458179A (en) * 2016-01-15 2016-04-06 无锡蠡湖增压技术股份有限公司 Metal mold with ventilation equipment
CN105798263A (en) * 2016-05-01 2016-07-27 中信戴卡股份有限公司 Gas exhausting device for low-pressure casting die for aluminum alloy vehicle wheel

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