CN208303891U - A kind of sealing device of 3D printer moulding cylinder - Google Patents
A kind of sealing device of 3D printer moulding cylinder Download PDFInfo
- Publication number
- CN208303891U CN208303891U CN201820852429.7U CN201820852429U CN208303891U CN 208303891 U CN208303891 U CN 208303891U CN 201820852429 U CN201820852429 U CN 201820852429U CN 208303891 U CN208303891 U CN 208303891U
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- China
- Prior art keywords
- gas
- moulding cylinder
- sealing device
- circular hole
- lead screw
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Abstract
The utility model discloses a kind of sealing device of 3D printer moulding cylinder, which is equipped with molding casing wall, working plate, lead screw plate, moulding cylinder bottom.Lead screw plate upper end-face edge is equipped with groove, is equipped with gas-flow closure circle in groove.Gas-flow closure circle is equipped with gas piping.Gas piping connects charge and discharge gas tank.Charge and discharge gas tank gives sealing ring inflation/deflation, and air gauge shows atmospheric pressure value, realizes the controllable of sealing dynamics.
Description
[technical field]
The utility model relates to 3D increasing material manufacturing equipment, are specifically related to a kind of sealing device of 3D printer moulding cylinder.
[background technique]
SLM technology is completely melt under the heat effect of laser beam using metal powder, molding one through cooled and solidified
Kind technology.Under the effect of high laser energy density, metal powder is completely melt, can be achieved and solid metal smelting after cooling
Gold solder synthesis type.SLM technology is exactly based on this process, and accumulation molds the rapid shaping technique of 3D solid layer by layer.
During laser sintered, working cylinder needs to carry out between forming worktable and work casing wall by sealing device close
Envelope, prevents powder from leaking down.Powder, which leaks down, to damage the lead screw and motor of working cylinder processing platform bottom, increase dimension
Shield and cleaning work, reduce the service life of equipment.
To solve the above problems, Chinese patent CN201610926075.1 discloses a kind of Anti-powder-leakage device of working cylinder,
Preferable sealing effect is realized, but the dynamics sealed is uncontrollable.
[utility model content]
For technological deficiency of the existing technology, the utility model devises a kind of sealing dress of 3D printer moulding cylinder
It sets, realizes the controllable of sealing dynamics.
The technical solution of the utility model includes:
A kind of sealing device of 3D printer moulding cylinder, the moulding cylinder include molding casing wall, working plate, lead screw plate, silk
Thick stick pair of nut.
The lead screw plate upper end-face edge is equipped with groove, and the groove has circular hole one；It is close that inflation is equipped in the groove
Seal；The gas-flow closure circle has gas piping；The molding casing wall is equipped with circular hole two；The gas piping passes through circular hole
One, two；The gas piping connects charge and discharge gas tank；The gas piping branch is equipped with air gauge.
Further, the working plate is fixed with lead screw plate with screw.
Further, the circular hole one, be respectively equipped with sealing ring one, sealing ring two in circular hole two.
Further, the gas-flow closure circle contact moudling casing wall side is equipped with sawtooth lines.
Further, the length of the gas piping is greater than the height of forming worktable lifting, does not hinder the liter of workbench
Drop；The gas piping is flexible conduit；The flexible conduit is silica gel.
Further, the gas-flow closure circle is silica gel by inner layer material, and surface layer is felt.
The beneficial effects of the utility model are:
The utility model provides a kind of gas-flow closure circle, and internal layer is silica gel, and outer layer is felt.By giving gas-flow closure circle
Inflation/deflation makes its expansion or shrinkage, realizes the controllable of sealing dynamics,
[Detailed description of the invention]
Fig. 1 is the utility model sealing device schematic diagram.
It is as follows that corresponding structure is numbered in figure:
1, working plate 2, screw 3, lead screw plate 3-1, groove 4, molding casing wall 5, gas-flow closure circle 6, gas piping
7, one 7-1 of circular hole, sealing ring 1, two 8-1 of circular hole, sealing ring 29, charge and discharge gas tank 10, air gauge 11, feed screw nut
It is secondary
[specific embodiment]
Embodiment 1 is the sealing device of the utility model moulding cylinder with reference to Fig. 1, and moulding cylinder includes molding casing wall 4, molding
Working plate 1, lead screw plate 3, screw pair 11.Working plate 1 and lead screw plate 3 are fixed with screw 2；3 upper end-face edge of lead screw plate is equipped with
Groove 3-1, the groove 3-1 have circular hole 1；Gas-flow closure circle 5 is equipped in groove 3-1；Gas-flow closure circle 5 has gas
Body pipeline 6；It forms casing wall 4 and is equipped with circular hole 28；Gas piping 6 passes through circular hole one, two, and connects charge and discharge gas tank 9；Charge and discharge gas tank 9
Carry out gas charge and discharge to gas-flow closure circle 5, the expansion of gas-flow closure circle 5 and contraction, realize the controllable sealing of dynamics；Gas piping
6 branches are equipped with the air pressure size of the detection sealing of air gauge 10, and the length of gas piping 6 is greater than the height that working plate 1 is gone up and down, does not hinder
Hinder the lifting of working plate 1；Gas piping 6 is flexible conduit, is silica gel material.
Embodiment 2 is distinguished with embodiment 1, is respectively equipped with one 7-1 of sealing ring, two 8-1 of sealing ring in circular hole one, two；
5 contact moudling casing wall of gas-flow closure circle, 4 side is equipped with sawtooth lines 5-1；5 internal layer of gas-flow closure circle is silica gel, and surface layer is felt.
Other embodiment is same as Example 1.
The above content is only to illustrate the technical idea of the utility model, and the protection model of the utility model cannot be limited with this
Enclose, it is all according to the utility model proposes technical idea, any changes made on the basis of the technical scheme each falls within this reality
Within protection scope with novel claims.
Claims (6)
1. a kind of sealing device of 3D printer moulding cylinder, the moulding cylinder includes molding casing wall, working plate, lead screw plate, lead screw
Pair of nut, it is characterised in that: the lead screw plate upper end-face edge is equipped with groove, and the groove has circular hole one；In the groove
Equipped with gas-flow closure circle；Gas piping is connected below the gas-flow closure circle；The molding casing wall lower end is equipped with circular hole two；It is described
Gas piping passes through circular hole one, two；The gas piping connects charge and discharge gas tank；The gas piping branch is equipped with air gauge.
2. a kind of sealing device of 3D printer moulding cylinder according to claim 1, it is characterised in that: the working plate with
Lead screw plate is fixed with screw.
3. a kind of sealing device of 3D printer moulding cylinder according to claim 1, it is characterised in that: the circular hole one,
Sealing ring one, sealing ring two are respectively equipped in circular hole two.
4. a kind of sealing device of 3D printer moulding cylinder according to claim 1, it is characterised in that: the gas-flow closure
It encloses contact moudling casing wall side and is equipped with sawtooth lines.
5. a kind of sealing device of 3D printer moulding cylinder according to claim 1, it is characterised in that: the gas piping
Length be greater than forming worktable lifting height；The gas piping is flexible conduit；The flexible conduit is silica gel.
6. a kind of sealing device of 3D printer moulding cylinder according to claim 1, it is characterised in that: the gas-flow closure
Circle is silica gel by internal layer, and surface layer is felt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820852429.7U CN208303891U (en) | 2018-06-04 | 2018-06-04 | A kind of sealing device of 3D printer moulding cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820852429.7U CN208303891U (en) | 2018-06-04 | 2018-06-04 | A kind of sealing device of 3D printer moulding cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208303891U true CN208303891U (en) | 2019-01-01 |
Family
ID=64709466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820852429.7U Active CN208303891U (en) | 2018-06-04 | 2018-06-04 | A kind of sealing device of 3D printer moulding cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208303891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259995A1 (en) * | 2019-06-24 | 2020-12-30 | SLM Solutions Group AG | Seal system |
| EP3929472A1 (en) * | 2020-06-26 | 2021-12-29 | Peter Lehmann AG | Sealing device for additive manufacturing apparatus |
-
2018
- 2018-06-04 CN CN201820852429.7U patent/CN208303891U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259995A1 (en) * | 2019-06-24 | 2020-12-30 | SLM Solutions Group AG | Seal system |
| JP2022533466A (en) * | 2019-06-24 | 2022-07-22 | エスエルエム ソルーションズ グループ アーゲー | seal system |
| JP7219356B2 (en) | 2019-06-24 | 2023-02-07 | エスエルエム ソルーションズ グループ アーゲー | seal system |
| US11584075B2 (en) | 2019-06-24 | 2023-02-21 | SLM Solutions Group AG | Seal system |
| EP3929472A1 (en) * | 2020-06-26 | 2021-12-29 | Peter Lehmann AG | Sealing device for additive manufacturing apparatus |
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