CN207814432U - Piston sealing structure - Google Patents
Piston sealing structure Download PDFInfo
- Publication number
- CN207814432U CN207814432U CN201820131367.0U CN201820131367U CN207814432U CN 207814432 U CN207814432 U CN 207814432U CN 201820131367 U CN201820131367 U CN 201820131367U CN 207814432 U CN207814432 U CN 207814432U
- Authority
- CN
- China
- Prior art keywords
- sealing
- piston
- sealing structure
- sealing element
- piston plate
- 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 discloses a kind of piston sealing structures, it is used for selective laser melting 3D printer, the 3D printer includes babinet, the piston plate set on cabinet wall, and the sealing structure includes being set to multiple sealing elements between the piston plate and babinet, the spacer for being set to the sealing strip and the cover board on the piston plate and sealing element.The utility model is simple in structure, applicability is wide, good airproof performance and service life are long.
Description
Technical field
The present invention relates to increases material manufacturing technology fields, and in particular to a kind of piston sealing structure can be used for nylon SLS
And in metal powder SLM.
Background technology
3D printing technique is one kind of rapid shaping technique, be mainly the mathematical model file of STL is in one format base
Plinth is sliced mathematical model using Slice Software, generates code, i.e. printing path, then controlled by controller, with
The materials such as metal or resin are raw material, are successively printed by modes such as heating and build object.
The one kind of laser sintering and moulding as 3D printing technique, using nylon powder as raw material, by controlling laser
Scan path can generate the shape in some section of object, then recycle scraper or powdering rod by plastic powders from powder supply cylinder
Push formation cylinder to, forms one layer of new powder bed to print new cross section profile.In the print procedure of laser sintering and moulding,
Platform makees elevating movement in moulding cylinder outer frame body, it is necessary to assure the sealing between platform and moulding cylinder outer frame body.Therefore, it is molded
Platform leakproofness in cylinder plays a crucial role in sintering process.
Existing piston structure is all used on hydraulic cylinder and cylinder, needs to bear high pressure, but service life and leakproofness
It is all difficult to ensure, especially under the working environment of metal 3D printer, it is more difficult to ensure service life.
Invention content
In order to solve the above technical problems, we have proposed a kind of piston sealing structure, sealed reliable and service life
It is long.
In order to achieve the above objectives, technical scheme is as follows：
Piston sealing structure, is used for selective laser melting 3D printer, and the 3D printer includes babinet, is set to
The piston plate of cabinet wall, the sealing structure include being set to multiple sealing elements between the piston plate and babinet, being set to institute
The spacer and the cover board on the piston plate and sealing element for stating sealing element.
Preferably, the sealing element includes at least two sealing strips, and the spacer is set between described two sealing strips, and
It is set between babinet and piston plate.
Preferably, the sealing element is sealing rubber strip.
Preferably, there are two relatively V-shaped notches in Y types or tool for the sealing element.
Preferably, the spacer is partition board, and with the groove for housing the sealing element.
Through the above technical solutions, inventive piston sealing structure, is sealed using sealing rubber strip, it is being put into groove
Afterwards, it is deformed, reaches working condition, the screen resilience by rubber is sealed, therefore sealed reliable, service life are long.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, others are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram of the piston sealing structure disclosed in the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of the sealing element disclosed in another embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
With reference to schematic diagram, specific embodiments of the present invention will be described in further detail.
Referring to Fig.1, piston sealing structure, is used for selective laser melting 3D printer, and the 3D printer includes
Babinet 1, set on the piston plate 2 of 1 inner wall of babinet, the sealing structure include be set to it is multiple close between the piston plate 2 and babinet 1
Sealing 3, the spacer 4 for being set to the sealing element 3 and the cover board 5 on the piston plate 2 and sealing element 3.
Specifically, the sealing element 3 includes at least two sealing rubber strips, the spacer 4 is set to described two sealings
It between item, and is set between babinet 1 and piston plate 2, is sealed using sealing rubber strip, the material of the rubber strip can be fluorubber
It can also be silicon rubber, after being put into groove, be deformed, reach working condition, the screen resilience by rubber is sealed, therefore close
Envelope is reliable, service life is long.
It should be pointed out that in order to which rubber strip in use does not generate movement, the cross section of the sealing element can be in Y
Type or tool are there are two relatively V-shaped notch, with reference to Fig. 2, which includes an at least elastic ring 6, be disposed adjacent to
Few two V-type circles 7 and an at least support ring 8, the elastic ring is for providing axial pressing force.
Specifically, the spacer 4 is partition board, and with the groove for housing the sealing element 3.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (5)
1. piston sealing structure, is used for selective laser melting 3D printer, the 3D printer includes babinet, is set to case
The piston plate of internal wall, which is characterized in that the sealing structure include the multiple sealing elements being set between the piston plate and babinet,
Between be set to the sealing element spacer and the cover board on the piston plate and sealing element.
2. piston sealing structure according to claim 1, which is characterized in that the sealing element includes at least two sealings
Item, the spacer are set between described two sealing strips, and are set between babinet and piston plate.
3. piston sealing structure according to claim 2, which is characterized in that the sealing element is sealing rubber strip.
4. piston sealing structure according to claim 2, which is characterized in that the sealing element is in there are two Y types or tools
Relatively V-shaped notch.
5. piston sealing structure according to claim 1, which is characterized in that the spacer is partition board, and with appearance
Set the groove of the sealing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820131367.0U CN207814432U (en) | 2018-01-26 | 2018-01-26 | Piston sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820131367.0U CN207814432U (en) | 2018-01-26 | 2018-01-26 | Piston sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207814432U true CN207814432U (en) | 2018-09-04 |
Family
ID=63325410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820131367.0U Expired - Fee Related CN207814432U (en) | 2018-01-26 | 2018-01-26 | Piston sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207814432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112026170A (en) * | 2020-07-31 | 2020-12-04 | 山东省机械设计研究院 | 3D printer piston system |
-
2018
- 2018-01-26 CN CN201820131367.0U patent/CN207814432U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112026170A (en) * | 2020-07-31 | 2020-12-04 | 山东省机械设计研究院 | 3D printer piston system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20190126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |