CN101412077B - Lower push rod with venting plug - Google Patents
Lower push rod with venting plug Download PDFInfo
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- CN101412077B CN101412077B CN 200810136360 CN200810136360A CN101412077B CN 101412077 B CN101412077 B CN 101412077B CN 200810136360 CN200810136360 CN 200810136360 CN 200810136360 A CN200810136360 A CN 200810136360A CN 101412077 B CN101412077 B CN 101412077B
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- venting plug
- push rod
- lower push
- passage
- installing hole
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Abstract
The invention discloses a lower pushing rod provided with a venting plug, which comprises a venting plug and a lower pushing rod, wherein the pushing end surface of the lower pushing rod is provided with a venting plug mounting hole, the lower pushing rod is provided inside with a channel by which the venting plug mounting hole is communicated with the outside, and when the venting plug is arranged in the venting plug mounting hole, air flow enters the venting plug mounting hole through a vent hole on the venting plug and discharged by the channel; and, when the core is pushed, the pushing rod has the effect of pushing the core. The lower pushing rod provided with the venting plug has the advantages of realizing the pushing core as well as air exhaust, and resolving the problems of small deep cavity and not solidification.
Description
Technical field
The present invention relates to a kind of lower push rod with venting plug.
Background technology
In the cold-box process process, existing core often has the core bottom and stretches out several long pin, and these outstanding positions are positioned at the deep and stenosis of cold-box die cavity, is difficult in the coremaking process solidify, after placing venting plug, be not easy to ejecting of core again at these positions.
Summary of the invention
The object of the present invention is to provide a kind of lower push rod that is applied in the band venting plug of the deep and stenosis of die cavity.
In order to reach above purpose, the technical solution used in the present invention is: a kind of lower push rod with venting plug, comprise venting plug and lower push rod, offer the venting plug installing hole on the top end face of described lower push rod, have in the described lower push rod and be communicated with venting plug installing hole and extraneous passage, in the time of in venting plug is contained in the venting plug installing hole, air-flow is discharged from passage after the steam vent on the venting plug enters the venting plug installing hole.
Described passage comprises that described second channel is linked up the described first passage and the external world along the first passage that axially extends to its bottom from its top ends of described lower push rod with along the second channel that radially extends and be positioned at described first passage end of described lower push rod.
Because the present invention has adopted above technical scheme, its advantage is: in the coremaking process, the dark and stenosis for die cavity, the lower push rod of band venting plug is set, can exhaust when core solidifies, air communication is crossed the steam vent on the venting plug, enter the venting plug installing hole after, discharge from passage, and lower push rod plays the plunger tip effect when plunger tip.The lower push rod of this band venting plug can realize that plunger tip again can exhaust, has solved the problem that does not solidify in less dark chamber.
Description of drawings
Accompanying drawing 1 is that master of the present invention looks partial sectional view.
The specific embodiment
Further set forth concrete structure of the present invention and operation principle below in conjunction with accompanying drawing.
Shown in accompanying drawing 1, a kind of lower push rod with venting plug, comprise venting plug 1 and lower push rod 2, offer venting plug installing hole 3 on the top end face of lower push rod 2, have in the lower push rod 2 and be communicated with venting plug installing hole 3 and extraneous passage 4, in the time of in venting plug 1 is contained in venting plug installing hole 3, air-flow is discharged from passage 4 after the steam vent on the venting plug 16 enters venting plug installing hole 3.
Passage 4 comprises that second channel 8 is linked up the first passage 7 and the external worlds along the first passage 7 that axially extends to its bottom from its top ends of lower push rod 2 with along the second channel 8 that radially extends and be positioned at first passage 7 ends of lower push rod 2.
In the coremaking process, the dark and stenosis for die cavity, the lower push rod of band venting plug is set, as shown in Figure 1, can exhaust when core solidifies, air communication is crossed the steam vent 6 on the venting plug 1, enter venting plug installing hole 3 after, discharge from first passage 7 and second channel 8, and lower push rod plays the plunger tip effect when plunger tip.To sum up, the lower push rod of band venting plug can realize that plunger tip again can exhaust, has solved the problem that does not solidify in less dark chamber.
Claims (2)
1. lower push rod with venting plug, comprise venting plug and lower push rod, it is characterized in that: offer the venting plug installing hole on the top end face of described lower push rod, have in the described lower push rod and be communicated with venting plug installing hole and extraneous passage, in the time of in venting plug is contained in the venting plug installing hole, air-flow is discharged from passage after the steam vent on the venting plug enters the venting plug installing hole.
2. the lower push rod of band venting plug according to claim 1, it is characterized in that: described passage comprises that described second channel is linked up the described first passage and the external world along the first passage that axially extends to its bottom from its top ends of described lower push rod with along the second channel that radially extends and be positioned at described first passage end of described lower push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810136360 CN101412077B (en) | 2008-11-28 | 2008-11-28 | Lower push rod with venting plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810136360 CN101412077B (en) | 2008-11-28 | 2008-11-28 | Lower push rod with venting plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101412077A CN101412077A (en) | 2009-04-22 |
| CN101412077B true CN101412077B (en) | 2011-01-26 |
Family
ID=40592935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810136360 Active CN101412077B (en) | 2008-11-28 | 2008-11-28 | Lower push rod with venting plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101412077B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940126A (en) * | 2019-05-05 | 2019-06-28 | 合肥江淮铸造有限责任公司 | One kind being vented plunger tip bar with form |
-
2008
- 2008-11-28 CN CN 200810136360 patent/CN101412077B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101412077A (en) | 2009-04-22 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215217, No. 1999, Xiao Xi Road, Tongli Town, Wujiang District, Jiangsu, Suzhou Patentee after: Suzhou Mingzhi Technology Co., Ltd Address before: 215217, No. 1, same highway, Tongli Town, Jiangsu, Wujiang Patentee before: SUZHOU MINGZHI TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |