CN105922580A - Forming cylinder and printer with same - Google Patents
Forming cylinder and printer with same Download PDFInfo
- Publication number
- CN105922580A CN105922580A CN201610264480.1A CN201610264480A CN105922580A CN 105922580 A CN105922580 A CN 105922580A CN 201610264480 A CN201610264480 A CN 201610264480A CN 105922580 A CN105922580 A CN 105922580A
- Authority
- CN
- China
- Prior art keywords
- piston
- ring
- elastic
- moulding cylinder
- sealing ring
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/30—Platforms or substrates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
Abstract
The invention relates to a forming cylinder which comprises a forming cylinder wall and a piston arranged in the forming cylinder wall, wherein the piston comprises a piston body, the forming cylinder further comprises at least one sealing ring, at least one inner groove surrounding the outer peripheral wall is formed in the outer peripheral wall of the piston body, and the sealing ring is adapted to the inner groove and props against the inner wall of the forming cylinder. According to the forming cylinder and the printer with same, the sealing ring is arranged between the outside of the piston body and the inner wall of the forming cylinder, so that the piston keeps propping against the wall of the forming cylinder while moving relative to the wall of the forming cylinder, thus achieving the purpose of preventing gas leakage.
Description
Technical field
The present invention relates to a kind of moulding cylinder and there is the printer of this moulding cylinder, particularly relating to a kind of 3D(three-dimensional with this moulding cylinder, three-dimensional) printer.
Background technology
3D printer is also known as three-dimensional printer, it is that one utilizes Rapid Prototyping technique, based on mathematical model file, use the powder to be formed that metal or nonmetallic materials are made, successively being melted/melt by the powder to be formed tiled, then the printing device that molding constructs the entity of three-dimensional is piled up in solidification.General 3D printer includes a moulding cylinder, when carrying out 3D and printing, after having sintered one layer of powder to be formed, the piston in formation cylinder can be moved with relative molding casing wall (as the piston in formation cylinder declines a layering), the sintering action of the completeest one layer of powder to be formed.But, powder to be formed is tens microns spherical mostly, if piston and the sealing effectiveness shaped between casing wall are not enough, is easily caused between piston and molding casing wall generation leakage powder, the possibility of gas leakage.If it occur that gas leakage, then content oxygen amount in moulding cylinder can be caused higher, and then be likely to result in powder to be formed and oxygen reaction, explode, and then create certain potential safety hazard.
Summary of the invention
In view of the foregoing, it is necessary to the moulding cylinder of a kind of sealing effectiveness improved between piston and molding casing wall is provided and there is the printer of this moulding cylinder.
A kind of moulding cylinder, the piston of this molding casing wall it is positioned at including a molding casing wall and one, this piston includes a piston only, this moulding cylinder also includes at least one sealing ring, the periphery wall of this piston only is provided with at least one inner groovy around this periphery wall, this sealing ring is suitable with this inner groovy, and inconsistent with the inwall of this molding casing wall.
Further, this moulding cylinder farther includes an elastic mechanism, this elastic mechanism includes one first elastic ring, one second elastic ring and some between the elastic collar member of the first elastic ring and second and can the elastic of movable telescopic, this first elastic ring contacts at this inner groovy, and sealing ring is positioned at the outside of described second elastic ring.
Further, this sealing ring includes outer ring and inner ring, and the wall of this outer ring is provided with the arcwall face for connecting outer ring upper and lower side, and the wall of this inner ring is provided with the arcwall face for connecting inner ring upper and lower side or plane.
A kind of printer, including a laser aid and moulding cylinder as above, this laser aid is arranged on the top of workbench, and moulding cylinder is located at the lower section of workbench, and the laser beam that this laser aid sends is directed at the upper surface of this piston only.
Compared to prior art, moulding cylinder of the present invention and there is the printer of this moulding cylinder sealing ring is set by outer at piston only and this molding casing wall inwall, so that keep inconsistent with molding casing wall when piston is relative to molding casing wall relative motion, and then reach to prevent the purpose of gas leakage, the leakage of to be formed powder so also when piston only moves, can be reduced or avoided relative to inwall.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of printer the first better embodiment of the present invention.
Fig. 2 is the generalized section that the piston only in Fig. 1 is installed with sealing ring.
The generalized section of Tu3Shi Tu2 Elastic mechanism.
Partial enlarged drawing at IV in Tu4Shi Tu3 Elastic mechanism.
Fig. 5 is the schematic perspective view of printer the second better embodiment of the present invention.
Main element symbol description
| Moulding cylinder | 10 |
| Workbench | 20 |
| Perforation | 22 |
| Piston | 16 |
| Piston cylinder | 162 |
| Piston rod | 164 |
| Piston only | 166 |
| Molding casing wall | 18 |
| Printer | 100、102 |
| Inwall | 181 |
| Sealing ring | 19 |
| Processor | 80 |
| Upper surface | 171 |
| Inner groovy | 177 |
| Periphery wall | 175 |
| Elastic mechanism | 40 |
| Outer ring | 191 |
| Inner ring | 193 |
| Elastic | 410 |
| First elastic ring | 407 |
| Second elastic ring | 405 |
| Laser aid | 90 |
| First fixture | 401 |
| Second fixture | 403 |
| Elastic component | 409 |
Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Referring to Fig. 1, the first better embodiment of printer 100 of the present invention includes moulding cylinder 10 and a workbench 20, in wherein this moulding cylinder 10 is located in this workbench 20.
Specifically, this workbench 20 offers a perforation 22, and this moulding cylinder 10 is arranged in this perforation 22, and the opening of this moulding cylinder 10 is directed at this perforation 22.
Please join and read Fig. 2 in the lump, this moulding cylinder 10 includes that a piston 16, at least is set in the sealing ring 19 outside this piston 16 and for housing the molding casing wall 18 of this piston 16 and this sealing ring 19, and wherein this piston 16 can move up and down along Z axis under the control of a processor 80 in the inwall 181 of this molding casing wall 18.In present embodiment, this molding casing wall 18 is substantially tubular.
This piston 16 includes piston rod 164 and the piston only 166 that a piston cylinder 162, can stretch, and this piston cylinder 162 is positioned at the bottom of this moulding cylinder 10.One end of this piston rod 164 connects this piston cylinder 162, and the other end connects this piston only 166.When this piston cylinder 162 drives this piston rod 164 to extend, this piston only 166 can be mobile along this molding casing wall 18 inwall 181 upwards (Z axis positive direction in Fig. 1), until the upper surface 171 of this piston only 166 and the upper surface flush of this workbench 20.In present embodiment, powder to be formed can be laid on the upper surface 171 of this piston only 166, and is moved relative to the inwall 181 of molding casing wall 18 by this piston only 166, so reaches the purpose that 3D prints.It addition, in present embodiment, this powder to be formed can be made up of metal or nonmetallic materials.
Please continue to refer to Fig. 2, this piston only 166 is in addition to including this upper surface 171, and this piston only 166 also includes a lower surface 173 being oppositely arranged with upper surface 171 and the periphery wall 175 arranged along this upper surface 171 with lower surface 173 circumferential direction.In present embodiment, one end of the piston rod 164 of this piston 16 connects this piston cylinder 162, and the other end connects the lower surface 173 of this piston only 166.
In present embodiment, this periphery wall 175 being provided with at least one inner groovy 177 arranged around this piston 16 periphery wall 175, each of which inner groovy 177 is for housing a sealing ring 19.In present embodiment, the quantity of this sealing ring 19 is not more than the quantity of this inner groovy 177.
Each sealing ring 19 all includes outer ring 191 and an inner ring 193.The wall of this outer ring 191 is provided with the arcwall face for connecting outer ring 191 upper and lower side, the wall of this inner ring 193 is provided with the arcwall face for connecting 183 lower ends on inner ring or plane, as when the outer ring 191 of sealing ring 19 be arcwall face, inner ring 193 for plane time, the cross section of this sealing ring 19 is then D font；When the outer ring 191 of sealing ring 19 be arcwall face, inner ring 193 for arcwall face time, the cross section of this sealing ring 19 be then selenodont or is O font.In present embodiment, this sealing ring 19 is viscous by wear-resisting glue, heatproof glue, Pilus Caprae seu Ovis, at least one material is made in politef.
In present embodiment, when sealing ring 19 is arranged in the inner groovy 177 of correspondence, the inner ring 193 of this sealing ring 19 can contact with corresponding inner groovy 177, and the outer ring 191 of this sealing ring 19 is also inconsistent with the inwall 181 of this molding casing wall 18, and then reaches to prevent the purpose of gas leakage.So also can be when piston only 166 to move relative to inwall 181, the outer ring 191 of sealing ring 19 can be reduced or avoided the leakage of powder to be formed.
Referring to and Fig. 3, in present embodiment, this piston 16 may also include at least one elastic mechanism 40.This inner groovy 177 can be used for housing this elastic mechanism 40 and sealing ring 19, and this elastic mechanism 40 is between corresponding sealing ring 19 and inner groovy 177.
Please also refer to Fig. 4, in present embodiment, this elastic mechanism 40 includes one first elastic ring 407,1 second elastic ring 405 and some is arranged between this first elastic ring 407 second elastic ring 405 and can the elastic 410 of movable telescopic.In present embodiment, each elastic 410 all includes one first fixture 401,1 second fixture 403 and is arranged at the elastic component 409 between this first fixture 401 and the second fixture 403.In present embodiment, this elastic component 409 can be a spring, and this first fixture 401 and the second fixture 403 are respectively provided with a protuberance, and this spring deducts between this first fixture 401 and 403 liang of protuberances of the second fixture.When this elastic mechanism 40 is between corresponding sealing ring 19 and inner groovy 177, first elastic ring 407 of this elastic mechanism 40 is for inconsistent with inner groovy 177, second elastic ring 405 of this elastic mechanism 40 is for inconsistent with the inner ring 193 of sealing ring 19, the outer ring 191 of this sealing ring 19 contacts at the inwall 181 of molding casing wall 18, so prevents the purpose of gas leakage.
Due to when carrying out 3D and printing, piston 16 in moulding cylinder 10 can occur relative motion in inwall 181, so after use after a while, the outer ring 191 of sealing ring 19 may be worn, but owing to this elastic mechanism 40 is arranged between corresponding sealing ring 19 and inner groovy 177, so when abrasion occurs in sealing ring 19, this elastic mechanism 40 can continue to keep inconsistent with inwall 181 for the outer ring 191 of this sealing ring 19 by elastic deformation, so reaches the purpose extending the service life of sealing ring 19.
In present embodiment, this periphery wall 175 is provided with 4 inner groovies 177, wherein inner groovy 1 houses the sealing ring of an O font cross section, inner groovy 2 houses elastic mechanism 40 and a sealing ring for a D font cross section, inner groovy 3 does not house sealing ring, and inner groovy 4 houses elastic mechanism 40 and a sealing ring for a selenodont cross section.In present embodiment, the material of the sealing ring being positioned in different inner groovy is identical or part is identical or different.
Refer to Fig. 5, the printer 102 provided for the present invention the second better embodiment.This printer 102 also includes a laser aid 90.This laser aid 90 is arranged on the top of this workbench 20, and the laser beam that this laser aid 90 sends is accurate with the upper surface 171 of this piston only 166, is used for being sintered action.
The beneficial effect that printer 100 in beneficial effect that printer 102 in this second better embodiment is possessed and the first embodiment is possessed is identical, does not repeats them here.
Those skilled in the art will be appreciated that; above embodiment is intended merely to the present invention is described; and it is not used as limitation of the invention; as long as within the spirit of the present invention, made above example suitably change and change all to fall is asked within the scope of protection in the present invention.
Claims (9)
1. a moulding cylinder, the piston of this molding casing wall it is positioned at including a molding casing wall and one, this piston includes a piston only, it is characterized in that: this moulding cylinder also includes at least one sealing ring, the periphery wall of this piston only is provided with at least one around the inner groovy of this periphery wall, one sealing ring and an inner groovy are suitable, and inconsistent with the inwall of this molding casing wall.
2. moulding cylinder as claimed in claim 1, it is characterized in that: this inner groovy is additionally provided with an elastic mechanism, this elastic mechanism includes one first elastic ring, one second elastic ring and some between the elastic collar member of the first elastic ring and second and can the elastic of movable telescopic, this first elastic ring contacts at this inner groovy, and sealing ring is positioned at the outside of described second elastic ring.
3. moulding cylinder as claimed in claim 2, it is characterised in that: each elastic includes one first fixture, one second fixture and is arranged at the elastic component between this first fixture and the second fixture.
4. moulding cylinder as claimed in claim 3, it is characterised in that: this sealing ring includes outer ring and inner ring, and the wall of this outer ring is provided with the arcwall face for connecting outer ring upper and lower side, and the wall of this inner ring is provided with the arcwall face for connecting inner ring upper and lower side or plane.
5. moulding cylinder as claimed in claim 4, it is characterised in that: the shape of cross section of this sealing ring is selenodont or D font or O font.
6. moulding cylinder as claimed in claim 1, it is characterised in that: this sealing ring is viscous by wear-resisting glue, heatproof glue, Pilus Caprae seu Ovis, at least one material is made in politef.
7. moulding cylinder as claimed in claim 6, it is characterised in that: the quantity of this inner groovy be at least 2, and the material of the piston packing being positioned in difference inner groovy is identical or part is identical or different.
8. moulding cylinder as claimed in claim 7, it is characterised in that: this piston is controlled by a processor, to move in this molding casing wall.
9. a printer, including a laser aid and moulding cylinder as claimed in any of claims 1 to 8 in one of claims, this laser aid is arranged on the top of workbench, and moulding cylinder is located at the lower section of workbench, and the laser beam that this laser aid sends is directed at the upper surface of this piston only.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610264480.1A CN105922580B (en) | 2016-04-26 | 2016-04-26 | Moulding cylinder and the printer with the moulding cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610264480.1A CN105922580B (en) | 2016-04-26 | 2016-04-26 | Moulding cylinder and the printer with the moulding cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105922580A true CN105922580A (en) | 2016-09-07 |
| CN105922580B CN105922580B (en) | 2018-02-13 |
Family
ID=56836310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610264480.1A Active CN105922580B (en) | 2016-04-26 | 2016-04-26 | Moulding cylinder and the printer with the moulding cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105922580B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344237A (en) * | 2017-06-28 | 2017-11-14 | 南京中科煜宸激光技术有限公司 | A kind of moulding cylinder and cylinder inner carrier body section method of adjustment for powdering formula increasing material manufacturing equipment |
| CN108941559A (en) * | 2018-07-27 | 2018-12-07 | 广东汉邦激光科技有限公司 | The assembly method of the moulding cylinder of 3D printer and 3D printer |
| CN109049691A (en) * | 2018-09-27 | 2018-12-21 | 武汉阿尔法激光有限公司 | A kind of 3D printer leakproof working cylinder |
| CN110280761A (en) * | 2019-07-02 | 2019-09-27 | 宁波哈勒姆电子科技有限公司 | A kind of metal powder 3D printer seal-moving device and its implementation method |
| CN111070675A (en) * | 2019-12-26 | 2020-04-28 | 珠海赛纳三维科技有限公司 | Molding cylinder and molding device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751784A (en) * | 1968-09-06 | 1973-08-14 | Int Harvester Co | Manufacturing process for piston engines having compression ring sealing |
| CN105014071A (en) * | 2015-07-02 | 2015-11-04 | 西安交通大学 | Metal laser selective melting forming double-piston controllable preheating powder cylinder |
| CN204749284U (en) * | 2015-06-11 | 2015-11-11 | 广东奥基德信机电有限公司 | Master cylinder piston structure of SLS powder 3D printer |
| CN204842978U (en) * | 2015-07-28 | 2015-12-09 | 昆明七零五所科技发展总公司 | High accuracy elevating system of laser sintering 3D printer |
-
2016
- 2016-04-26 CN CN201610264480.1A patent/CN105922580B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3751784A (en) * | 1968-09-06 | 1973-08-14 | Int Harvester Co | Manufacturing process for piston engines having compression ring sealing |
| CN204749284U (en) * | 2015-06-11 | 2015-11-11 | 广东奥基德信机电有限公司 | Master cylinder piston structure of SLS powder 3D printer |
| CN105014071A (en) * | 2015-07-02 | 2015-11-04 | 西安交通大学 | Metal laser selective melting forming double-piston controllable preheating powder cylinder |
| CN204842978U (en) * | 2015-07-28 | 2015-12-09 | 昆明七零五所科技发展总公司 | High accuracy elevating system of laser sintering 3D printer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107344237A (en) * | 2017-06-28 | 2017-11-14 | 南京中科煜宸激光技术有限公司 | A kind of moulding cylinder and cylinder inner carrier body section method of adjustment for powdering formula increasing material manufacturing equipment |
| CN108941559A (en) * | 2018-07-27 | 2018-12-07 | 广东汉邦激光科技有限公司 | The assembly method of the moulding cylinder of 3D printer and 3D printer |
| CN109049691A (en) * | 2018-09-27 | 2018-12-21 | 武汉阿尔法激光有限公司 | A kind of 3D printer leakproof working cylinder |
| CN110280761A (en) * | 2019-07-02 | 2019-09-27 | 宁波哈勒姆电子科技有限公司 | A kind of metal powder 3D printer seal-moving device and its implementation method |
| CN111070675A (en) * | 2019-12-26 | 2020-04-28 | 珠海赛纳三维科技有限公司 | Molding cylinder and molding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105922580B (en) | 2018-02-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20190823 Address after: 528400 No. 23 Tongji West Road, Nantou Town, Zhongshan City, Guangdong Province (1st and 2nd floors of Hongji Industrial City Phase I) Patentee after: GUANGDONG HANBANG 3D TECHNOLOGY CO., LTD. Address before: Six District, Guangdong City, Zhongshan Province Torch Development Zone, No. 8 Min Min Road, building A Co-patentee before: Liu Jianye Patentee before: GUANGDONG HANBANG 3D TECHNOLOGY CO., LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Forming cylinder and printer with same Effective date of registration: 20191111 Granted publication date: 20180213 Pledgee: Bank of China Limited by Share Ltd Zhongshan branch Pledgor: GUANGDONG HANBANG 3D TECHNOLOGY CO., LTD. Registration number: Y2019440000190 |