CN205926998U - Eliminate device of airtight space of mould negative pressure - Google Patents
Eliminate device of airtight space of mould negative pressure Download PDFInfo
- Publication number
- CN205926998U CN205926998U CN201620715593.4U CN201620715593U CN205926998U CN 205926998 U CN205926998 U CN 205926998U CN 201620715593 U CN201620715593 U CN 201620715593U CN 205926998 U CN205926998 U CN 205926998U
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- CN
- China
- Prior art keywords
- piston
- mould
- negative pressure
- connecting rod
- hole
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides an eliminate device of airtight space of mould negative pressure, including the piston, mould and piston hole, the well lower part at the mould is opened to the piston hole, the piston is by the pull ring, the connecting rod, the air vent, the piston crown, the gaseous ring is constituteed, the one end welded connection of connecting rod has the pull ring, the other end welded connection of connecting rod has the piston head, the outward flange nestification at piston head top has the gaseous ring, the gaseous ring material is elastic material, the check valve is located the air vent department of piston crown, one -way valve housing material adopts soft materials, the piston slides just in the piston hole, and the piston takes out in can following the piston hole. The airtight space vacuum device of mould is eliminated to this kind, has eliminated the space negative pressure that exists between wax spare and the mould, has played fine guard action to wax spare, has avoided getting the destruction that an in -process caused to wax spare.
Description
Technical field
This utility model is related to part technical field of processing equipment and in particular to easily producing the wax part processing of space negative pressure
Equipment.
Background technology
Wax-pattern technology is also named model casting, hot investment casting.It is a kind of casting side for traditional casting technique
Method.It can obtain relatively accurate contoured and higher casting accuracy.Compared with widespread practice it is：Making required blank first (can
Made allowance is very little or not made allowance) electrode, then use electrode corrosion mode concrete, form cavity.Again with the method for casting
Casting wax, obtains original wax-pattern.At present, wax room is penetrated after wax machine completes to penetrate wax, during taking wax part, between some wax part and moulds
There is confined space, produce negative pressure, pickup easily causes the deformation of wax part, breakage.
Content of the invention
The problems of wax machine is penetrated for wax room in prior art complete to penetrate after wax, take during wax part, this practicality is new
The device of a kind of elimination mould confined space negative pressure that type provides, it is possible to achieve eliminate space negative pressure.
To achieve these goals, the technical solution adopted in the utility model is as follows：
A kind of device eliminating mould confined space negative pressure, including piston, mould and piston hole, described piston hole is opened in mould
The middle and lower part of tool, during pickup, can effectively eliminate the space negative pressure of mould generation, and described piston slides in piston in the hole and piston can
To take out from piston hole, facilitate air gun to pass through piston hole and inflate toward in mould, described piston is the connecting rod by draw ring, passage,
Piston crown, compression ring forms, and one end of described connecting rod has been welded to connect draw ring, and the other end of connecting rod has been welded to connect piston head,
The outward flange of described piston head is nested with compression ring, eliminates the gap of piston and piston hole.
Described compression ring material is elastomeric material it is ensured that air-tightness between piston and piston hole.
At the passage that described check valve is located in piston crown, not only saved space but also saved material.
Described check valve sheathing material adopts soft material, eliminates the gap of check valve and piston head.
The beneficial effects of the utility model show：
Wax room is penetrated after wax machine completes to penetrate wax, during taking wax part, eliminates the space negative pressure existing between wax part and mould,
Wax part is played a very good protection, it is to avoid during pickup wax part damaged.
Brief description
Fig. 1 is a kind of overall cross-sectional view of the device eliminating mould confined space negative pressure of this utility model.
Fig. 2 is a kind of cross-sectional view of the piston of device eliminating mould confined space negative pressure of this utility model.
Fig. 3 be this utility model a kind of eliminate mould confined space negative pressure Fig. 2 of device in a-quadrant enlarged drawing.
In figure 1, mould, 2, piston hole, 3, piston, 301, draw ring, 302, connecting rod, 303, passage, 304, piston crown,
305th, check valve, 306, compression ring.
Specific embodiment
Piston hole 2 as shown in Figure 1 is opened in the middle and lower part of mould 1, and piston 3 slides in piston hole 2 and piston 3 can be from
Take out in piston hole 2.
Piston 3 as shown in Figure 2 is the connecting rod 302 by draw ring 301, passage 303, piston crown 304, check valve 305,
Compression ring 306 composition, draw ring 301 is to be welded to connect with connecting rod 302, and connecting rod 302 is to be welded to connect with piston crown 304, unidirectional
Valve 305 is arranged in piston crown 304 and is connected with passage 303, is hollow in the middle of connecting rod 302 and piston crown 304,
Hollow space be passage 303, be nested with compression ring 306 outside top land 304, compression ring 306 material be elastomeric material it is ensured that
Air-tightness between piston 3 and piston hole 2；
When taking wax part, pull out piston 3, pull draw ring 301 so that piston 3 is skidded off along piston hole 2, after piston 3 takes out, by air gun
Put into piston hole 2 position to be blown, wax part is easy for coming off, meanwhile, piston 3 has an individual event passage, single
Item passage is made up of passage 303 and check valve 305, and during piston 3 skids off, piston hole 2 forms confined space negative pressure, that is,
External pressure is more than piston hole 2 internal gas pressure, and therefore check valve 305 works, and makes inner and outer air pressure consistent, facilitates piston 3 to take out；Avoid
When taking piston 3, form negative pressure in piston hole 2, facilitate piston 3 to take off, air one-way flow direction is draw ring 301 to piston head
Portion 304；When penetrate wax machine to mould 1 in penetrate before wax, promote draw ring 301 so that the piston 3 is pushed along piston hole 2, because check valve 305
Air circulation in hindrance blocks piston hole 2, prevents from penetrating wax liquor during wax and is flowed out by piston hole 2.
Claims (3)
1. a kind of device eliminating mould confined space negative pressure, is characterized in that, including piston, mould and piston hole, described piston
Hole is opened in the middle and lower part of mould, and described piston slides in piston in the hole and piston can take out from piston hole, and described piston is
By draw ring, connecting rod, passage, piston crown, compression ring forms, and one end of described connecting rod has been welded to connect draw ring, connecting rod another
End has been welded to connect piston head, is hollow in the middle of described connecting rod and described piston crown, and hollow space is described passage,
The outward flange of described piston head is nested with compression ring.
2. a kind of device eliminating mould confined space negative pressure according to claim 1, is characterized in that, the material of described compression ring
Expect for elastomeric material.
3. a kind of device eliminating mould confined space negative pressure according to claim 1, is characterized in that, described piston crown
It is provided with check valve at interior passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620715593.4U CN205926998U (en) | 2016-07-07 | 2016-07-07 | Eliminate device of airtight space of mould negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620715593.4U CN205926998U (en) | 2016-07-07 | 2016-07-07 | Eliminate device of airtight space of mould negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205926998U true CN205926998U (en) | 2017-02-08 |
Family
ID=57928431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620715593.4U Expired - Fee Related CN205926998U (en) | 2016-07-07 | 2016-07-07 | Eliminate device of airtight space of mould negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205926998U (en) |
-
2016
- 2016-07-07 CN CN201620715593.4U patent/CN205926998U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20200707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |