CN201815655U - Metal mould negative pressure air extractor - Google Patents
Metal mould negative pressure air extractor Download PDFInfo
- Publication number
- CN201815655U CN201815655U CN2010205379488U CN201020537948U CN201815655U CN 201815655 U CN201815655 U CN 201815655U CN 2010205379488 U CN2010205379488 U CN 2010205379488U CN 201020537948 U CN201020537948 U CN 201020537948U CN 201815655 U CN201815655 U CN 201815655U
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- pipe
- caliber
- heavy caliber
- negative pressure
- small
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Abstract
The utility model discloses a metal mould negative pressure air extractor which is characterized by comprising a large-caliber bent pipe (1) and a small-caliber blow pipe (2), wherein one end of the large-caliber bent pipe (1) is provided with a long-edge pipe (11), the other end of the large-caliber bent pipe (1) is provided with a short-edge pipe (12), one end of the small-caliber blow pipe (2) is connected at a bent part of the large-caliber bent pipe (1), an axis line (3) of the small-caliber blow pipe (2) and the axis line (3) of the long-edge pipe (11) of the large-caliber bent pipe (1) are positioned on a same straight line, and the short-edge pipe (12) of the large-caliber bent pipe (1) can be communicated with a vent hole (5) in a bottom die (4) of a metal mould. The metal mould negative pressure air extractor has the advantages that by adopting the air extraction principle that negative pressure is formed by blowing air from the small-caliber pipe to the large-caliber bent pipe, gas generated by moulding sand in pouring is extracted from a core print through the vent hole in the bottom die, thus greatly improving the finished product ratio of castings.
Description
Technical field:
The utility model relates to a kind of mould matching appliances, especially relates to the matching appliances of metal type cast mould, specifically is a kind of metal type dies negative pressure ventilation device.
Background technology:
The metal type cast mould is when some foundry goods of cast (as: automobile cylinder cap), need to install many cores, in casting process, the aluminium liquid of degree more than 700 flows into metal mold cavity and contacts with core, core can produce the gas bubble of emerging under the high temperature etch, if bubble is not in time discharged, be wrapped in the aluminium liquid, will cause foundry goods inside to contain bubble, make foundry goods become waste product and scrap.Existing method for exhausting mainly is by the exhaust of core core print nature, this exhaust mode, though the rule of complying with the nature, most of gas can be discharged, but exhaust is slow, has influenced poring rate and job schedule, and under many circumstances, a lot of cores are placed in the following profile of casting mold, and it is difficult that the gas of its generation is discharged, often become the casting quality qualification rate not high principal element.
The utility model content:
The technical problems to be solved in the utility model is at the problem and shortage that above-mentioned prior art exists, to provide a kind of and can discharge the gas that produces when pouring into a mould smoothly, thereby improve the metal type dies negative pressure ventilation device of casting yield.
Technical solution of the present utility model is:
Metal type dies negative pressure ventilation device, comprise a heavy caliber bend pipe and a small-bore blowpipe, one end of heavy caliber bend pipe is a long side pipe, the other end is the minor face pipe, one end of small-bore blowpipe is connected the turn of bilge of heavy caliber bend pipe, the axial line of the long side pipe of the axial line of small-bore blowpipe and heavy caliber bend pipe is on the same straight line, and the venthole on the minor face Guan Keyu metal type dies bed die of heavy caliber bend pipe is connected.
The using method of this device is, the minor face pipe of heavy caliber bend pipe is connected with venthole on the metal type dies bed die, small-bore blowpipe is connected on the blower pump, start blower pump, air-flow enters the heavy caliber bend pipe from small-bore pipe, owing to the variation of caliber produces siphonage, become low pressure by the hyperbar of small-bore blowpipe to the long side pipe of heavy caliber bend pipe and formed negative pressure in the long side pipe in other words, because the minor face pipe of heavy caliber bend pipe is communicated with the venthole on the bed die, the gas that core in the mould produces when cast will be drawn out of continually from the venthole of core print on bed die.
Compared with prior art, the utlity model has following advantage: because the utility model adopts the structure of a heavy caliber bend pipe and a small-bore blowpipe, take to blow and formation negative pressure ventilation principle to the heavy caliber bend pipe from small-bore pipe, make the gas that core in the mould produces when cast, be drawn out of continually from the venthole of core print on bed die, thereby improve finished casting rate widely.
Improve as optimizing, the diameter of described heavy caliber bend pipe and the diameter ratio of small-bore blowpipe are 2: 1.This diameter ratio, the negative pressure best results of generation.
As improvement, the pipe end of the minor face pipe of heavy caliber bend pipe is provided with a connecting seat, and Connection Block is provided with screw.Adopting this structure, mainly is to make things convenient for being connected of heavy caliber bend pipe and bed die venthole.
Description of drawings:
Accompanying drawing is the utility model metal type dies negative pressure ventilation apparatus structure schematic diagram.
Shown in the figure: 1, heavy caliber bend pipe, 11, long side pipe, 12, the minor face pipe, 13, Connection Block, 2, small-bore blowpipe, 3, axial line, 4, bed die, 5, venthole, 6, core print.
The specific embodiment:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Shown in the accompanying drawing, the utility model metal type dies negative pressure ventilation device, comprise a heavy caliber bend pipe 1 and a small-bore blowpipe 2, one end of heavy caliber bend pipe 1 is a long side pipe 11, the other end of heavy caliber bend pipe 1 is a minor face pipe 12, one end of small-bore blowpipe 2 is connected the turn of bilge of heavy caliber bend pipe 1, on the same straight line in axial line 3 places of the axial line 3 of small-bore blowpipe 2 and the long side pipe 11 of heavy caliber bend pipe 1, the minor face pipe 12 of heavy caliber bend pipe 1 can be connected with the venthole 5 on the metal type dies bed die 4.
Improve as optimizing, the diameter ratio of the diameter of described heavy caliber bend pipe 1 and small-bore blowpipe 2 is 2: 1.
As improvement, the pipe end of the minor face pipe 12 of heavy caliber bend pipe 1 is provided with Connection Block 13, and Connection Block 13 is provided with the screw that is connected and fixed usefulness.
Using method of the present utility model is, the minor face pipe 12 of heavy caliber bend pipe 1 is connected with venthole 5 on the metal type dies bed die 4, small-bore blowpipe 2 is connected on the blower pump, start blower pump, air-flow enters heavy caliber bend pipe 1 from small-bore blowpipe 2, owing to the variation of caliber produces siphonage, become low pressure by the hyperbar of small-bore blowpipe 2 to the long side pipe 11 of heavy caliber bend pipe 1 and formed negative pressure in the long side pipe 11 in other words, because the minor face pipe 12 of heavy caliber bend pipe 1 is communicated with the venthole 5 on the bed die 4, the gas that core in the mould produces when cast will be drawn out of continually from the venthole 4 of core print 6 on bed die 4.
Claims (3)
1. metal type dies negative pressure ventilation device, it is characterized in that: comprise a heavy caliber bend pipe (1) and a small-bore blowpipe (2), one end of described heavy caliber bend pipe (1) is long side pipe (11), the other end of described heavy caliber bend pipe (1) is minor face pipe (12), one end of described small-bore blowpipe (2) is connected the turn of bilge of described heavy caliber bend pipe (1), the axial line (3) of described small-bore blowpipe (2) is on the same straight line with the axial line (3) of the long side pipe (11) of heavy caliber bend pipe (1), and the minor face pipe (12) of described heavy caliber bend pipe (1) can be connected with the venthole (5) on the metal type dies bed die (4).
2. metal type dies negative pressure ventilation device as claimed in claim 1 is characterized in that: the diameter ratio of the diameter of described heavy caliber bend pipe (1) and described small-bore blowpipe (2) is 2: 1.
3. metal type dies negative pressure ventilation device as claimed in claim 1 is characterized in that: the pipe end of the minor face pipe (12) of described heavy caliber bend pipe (1) is provided with Connection Block (13), and described Connection Block (13) is provided with the screw that is connected and fixed usefulness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205379488U CN201815655U (en) | 2010-09-13 | 2010-09-13 | Metal mould negative pressure air extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205379488U CN201815655U (en) | 2010-09-13 | 2010-09-13 | Metal mould negative pressure air extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201815655U true CN201815655U (en) | 2011-05-04 |
Family
ID=43913626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205379488U Expired - Fee Related CN201815655U (en) | 2010-09-13 | 2010-09-13 | Metal mould negative pressure air extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201815655U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671291A (en) * | 2013-12-10 | 2014-03-26 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Micro-pressure air exhaust device |
| 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 |
| CN107234187A (en) * | 2017-06-27 | 2017-10-10 | 深圳市汇创达科技股份有限公司 | A kind of metal clips processing accessory for producing absorption affinity using blowing |
-
2010
- 2010-09-13 CN CN2010205379488U patent/CN201815655U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671291A (en) * | 2013-12-10 | 2014-03-26 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Micro-pressure air exhaust device |
| 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 |
| CN107234187A (en) * | 2017-06-27 | 2017-10-10 | 深圳市汇创达科技股份有限公司 | A kind of metal clips processing accessory for producing absorption affinity using blowing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20130913 |