CN108453253A - Powder supply mechanism for SLM printers - Google Patents
Powder supply mechanism for SLM printers Download PDFInfo
- Publication number
- CN108453253A CN108453253A CN201810038631.0A CN201810038631A CN108453253A CN 108453253 A CN108453253 A CN 108453253A CN 201810038631 A CN201810038631 A CN 201810038631A CN 108453253 A CN108453253 A CN 108453253A
- Authority
- CN
- China
- Prior art keywords
- fixed plate
- plate
- supply mechanism
- powdering
- powder supply
- 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.)
- Pending
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
- 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]
-
- 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
- B22F10/70—Recycling
- B22F10/73—Recycling of 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
- B22F12/22—Driving means
- B22F12/224—Driving means for motion along a direction within the plane of a layer
-
- 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
- B22F12/60—Planarisation devices; Compression devices
- B22F12/67—Blades
-
- 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
Abstract
The invention discloses the powder supply mechanisms for SLM printers, including：Frame body, the first fixed plate, the second fixed plate and powdering plate；The lower surface of frame body is provided with the first fixing groove, first fixed plate is fixed in the first fixing groove, second fixed plate is fixed on the side of the first fixed plate, powdering plate is arranged between the first fixed plate and the second fixed plate, and fixed the top of powdering plate by the clamping action of two fixed plates, the side of powdering plate towards the second fixed plate is provided with angular cut.The powder supply mechanism overcomes powder supply mechanism in the prior art effectively cannot equably be laid with raw material powder on the table, when being laid with raw material using powder-laying roller, the centrifugal force for moving generation is easy that powder is made to shed the problem of the powder bed completed influences powdering quality.
Description
Technical field
The present invention relates to 3D metallic prints fields, and in particular, to a kind of powder supply mechanism for SLM printers.
Background technology
Selective laser melting (abbreviation SLM) is a kind of rapid shaping technique being widely used, during processing
So that material powder is completely melt with laser, does not need adhesive, molding precision and mechanical property are all than SLS (selective lasers
Fusing) it to get well, it is not limited by part shape complexity, is not needed any moulds of industrial equipment, have a wide range of application.
In the course of work of SLM type 3D metallic print machines, need raw material powder being equably laid on print platform,
Laser aid is recycled to carry out selective melting, but powder supply mechanism in the prior art cannot be effectively uniform by raw material powder
Ground is laid on workbench, and when being laid with raw material using powder-laying roller, the centrifugal force for moving generation is easy powder is made to shed to complete
Powder bed influence powdering quality.
Therefore it provides a kind of can equably be laid with raw material powder on the table in use, to improve
The problem of powder supply mechanism for SLM printers of print quality is urgent need to resolve of the present invention.
Invention content
In view of the above technical problems, the purpose of the present invention is overcome powder supply mechanism in the prior art cannot effectively will be former
Feed powder end is equably laid on the table, and when being laid with raw material using powder-laying roller, the centrifugal force for moving generation is easy that powder is made to throw
Be sprinkled upon the problem of powder bed completed influences powdering quality, to provide it is a kind of in use can be equal by raw material powder
It is laid on workbench evenly, to improve the powder supply mechanism for SLM printers of print quality.
To achieve the goals above, the present invention provides a kind of powder supply mechanisms for SLM printers, described to be used for SLM
The powder supply mechanism of printer includes：Frame body, the first fixed plate, the second fixed plate and powdering plate；The lower surface of the frame body is arranged
There are the first fixing groove, first fixed plate to be fixed in first fixing groove, second fixed plate is fixed on described
The side of one fixed plate, the powdering plate is arranged between first fixed plate and second fixed plate, and passes through two pieces
The clamping action of fixed plate fixes the top of the powdering plate, and the side of the powdering plate towards second fixed plate is set
It is equipped with angular cut.
Preferably, the powder supply mechanism for SLM printers further includes：Fixing piece, the frame body and the fixing piece
Between be connected by connector, and the connector can along vertical direction slide on the fixing piece.
Preferably, the side vertical of the fixing piece is provided with sliding slot, and the connector part is fastened on the sliding slot,
The connector can be slided along the length direction of the sliding slot, and the connector can also be locked on the sliding slot.
Preferably, it is provided in the sliding slot and multiple rows of first mounting hole, the company is set from top to bottom along vertical direction
It is provided on fitting and is bolted on the cunning with matched second mounting hole of first mounting hole, the connector
On slot.
Preferably, first fixed plate inner hollow setting, and the lower surface of first fixed plate be provided with it is more
A air suction opening, dust catcher is provided on the frame body, and the suction inlet of the dust catcher passes through conduit and first fixed plate
Inside is connected.
Preferably, the side that first fixed plate is in contact with the powdering plate is provided with the second fixing groove, the paving
It is provided on powder plate and the matched protrusion of the second fixing groove.
Preferably, the side that second fixed plate is in contact with the powdering plate is provided with rubber pad.
Preferably, it is fixed by multiple screws between second fixed plate and first fixed plate.
According to above-mentioned technical proposal, provided by the present invention for SLM printers powder supply mechanism when in use, using described
The powdering plate is clamped by the first fixed plate and second fixed plate, and driving device drives the frame body in workbench
Upper movement, to being equably laid with raw material powder on the table, wherein the powdering plate is towards second fixed plate
Side is provided with angular cut, so that the powdering plate can preferably be laid with raw material powder.Provided by the present invention for SLM
The powder supply mechanism of printer overcomes powder supply mechanism in the prior art that cannot raw material powder be equably effectively laid on work
On platform, when being laid with raw material using powder-laying roller, the centrifugal force for moving generation is easy that powder is made to shed in the powder bed influence completed
The problem of powdering quality.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide further understanding of the present invention, an and part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 be the present invention a kind of preferred embodiment in the structure of the powder supply mechanism for SLM printers that provides
Schematic diagram；
Fig. 2 be the present invention a kind of preferred embodiment in the side view of the powder supply mechanism for SLM printers that provides
Figure；
Fig. 3 be the present invention a kind of preferred embodiment in the powder supply mechanism upper frame for SLM printers that provides
Front view；
Fig. 4 be the present invention a kind of preferred embodiment in first in the powder supply mechanism for SLM printers that provides
The structural schematic diagram of fixed plate；
Fig. 5 be the present invention a kind of preferred embodiment in powdering in the powder supply mechanism for SLM printers that provides
The sectional view of plate.
Reference sign
1 frame body, 2 second fixed plate
3 powdering plate, 4 connector
5 fixing piece, 6 sliding slot
7 first fixed plate, 8 dust catcher
9 first mounting hole, 10 air suction opening
11 second fixing groove, 12 protrusion
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality that " upper and lower, inside and outside " etc. is included in the term
Only represent orientation of the term under normal service condition, or be those skilled in the art understand that be commonly called as, and be not construed as pair
The limitation of the term.
As shown in Figs. 1-5, a kind of powder supply mechanism for SLM printers provided by the invention, it is described to be used for SLM printers
Powder supply mechanism include：Frame body 1, the first fixed plate 7, the second fixed plate 2 and powdering plate 3；The lower surface of the frame body 1 is provided with
First fixing groove, first fixed plate 7 are fixed in first fixing groove, and second fixed plate 2 is fixed on described
The side of one fixed plate 7, the powdering plate 3 is arranged between first fixed plate 7 and second fixed plate 2, and passes through
The clamping action of two fixed plates fixes the top of the powdering plate 3, and the powdering plate 3 is towards second fixed plate 2
Side be provided with angular cut 13.
According to above-mentioned technical proposal, provided by the present invention for SLM printers powder supply mechanism when in use, using described
The powdering plate 3 is clamped by the first fixed plate 7 and second fixed plate 2, and driving device drives the frame body 1 in work
Make to move on platform, to equably be laid with raw material powder on the table, wherein the powdering plate 3 is solid towards described second
The side of fixed board 2 is provided with angular cut 13, so that the powdering plate 3 can preferably be laid with raw material powder.The present invention carries
Supply the powder supply mechanism for SLM printers overcome powder supply mechanism in the prior art cannot effectively by raw material powder equably
It is laid on the table, when being laid with raw material using powder-laying roller, the centrifugal force for moving generation is easy to make powder to shed to complete
Powder bed influences the problem of powdering quality.
In a kind of preferred embodiment of the present invention, the powder supply mechanism for SLM printers further includes：It is fixed
Part 5 is connected between the frame body 1 and the fixing piece 5 by connector 4, and the connector 4 can be in the fixing piece 5
On slide along vertical direction, adjusted indirectly between the powdering plate 3 and the workbench by sliding the connector 4
Distance, is arranged the fixing piece 5 and can facilitate and dismounted to the frame body 1.
In a kind of preferred embodiment of the present invention, the side vertical of the fixing piece 5 is provided with sliding slot 6, described
4 part of connector is fastened on the sliding slot 6, and the connector 4 can be slided along the length direction of the sliding slot 6, and institute
Stating connector 4 can also be locked on the sliding slot 6, by slide the connector 4 adjust indirectly the powdering plate 3 with
The distance between described workbench completes that the connector 4 is locked on the sliding slot 6 after adjusting.
It is arranged from top to bottom along vertical direction in a kind of preferred embodiment of the present invention, in the sliding slot 6 more
Mounting hole 9 is ranked first, is provided on the connector 4 and first mounting hole, 9 matched second mounting hole, the connection
Part 4 is bolted on the sliding slot 6, behind the position for adjusting the connector 4, recycles bolt by the connector 4
It is fixed in the sliding slot 6, simple operation, and the connector 4 is also fixedly sufficiently stable.
In a kind of preferred embodiment of the present invention, the inner hollow of first fixed plate 7 is arranged, and described the
The lower surface of one fixed plate 7 is provided with multiple air suction openings 10, and dust catcher 8, the suction of the dust catcher 8 are provided on the frame body 1
Dirt mouth is connected by conduit with the inside of first fixed plate 7, when in use, after completing printing, can be remained on workbench
Extra raw material powder can recycle extra raw material powder using the dust catcher 8, process and the powdering mistake of recycling
Journey is the same, only starts dust catcher 8, and first fixed plate 7 moves, extra raw material powder by the air suction opening 10 into
Enter into the dust catcher 8.
The present invention a kind of preferred embodiment in, first fixed plate 7 be in contact with the powdering plate 3 one
Side is provided with the second fixing groove 11, be provided in the powdering plate 3 with second fixing groove 11 matched raised 12, solid
Timing is arranged described raised 12 in second fixing groove 11, then second fixed plate 2 is fixed on described first and is consolidated
On fixed board 7, to fix the powdering plate 3, described raised 12 play the role of limit so that the powdering plate 3 is fixed
Ground more consolidates.
The present invention a kind of preferred embodiment in, second fixed plate 2 be in contact with the powdering plate 3 one
Side is provided with rubber pad, and the rubber pad can effectively increase the friction between two fixed plate 2 and the powdering plate 3
Power, to further increase 3 fixed stability of the powdering plate.
In a kind of preferred embodiment of the present invention, lead between second fixed plate 2 and first fixed plate 7
It crosses multiple screws to fix, which facilitates the close journey adjusted between second fixed plate 2 and first fixed plate 7
Degree, to control the aid power to the powdering plate 3, but also powdering plate 3 described in easy disassembly.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (8)
1. a kind of powder supply mechanism for SLM printers, which is characterized in that the powder supply mechanism for SLM printers includes：
Frame body (1), the first fixed plate (7), the second fixed plate (2) and powdering plate (3)；The lower surface of the frame body (1) is provided with first
Fixing groove, first fixed plate (7) are fixed in first fixing groove, and second fixed plate (2) is fixed on described
The side of one fixed plate (7), the powdering plate (3) setting first fixed plate (7) and second fixed plate (2) it
Between, and the top of the powdering plate (3) is fixed by the clamping action of two fixed plates, the powdering plate (3) is towards institute
The side for stating the second fixed plate (2) is provided with angular cut (13).
2. the powder supply mechanism according to claim 1 for SLM printers, which is characterized in that described to be used for SLM printers
Powder supply mechanism further include：Fixing piece (5) is connected between the frame body (1) and the fixing piece (5) by connector (4), and
The connector (4) can along vertical direction be slided on the fixing piece (5).
3. the powder supply mechanism according to claim 1 for SLM printers, which is characterized in that the side of the fixing piece (5)
Face is vertically arranged with sliding slot (6), and the connector (4) is partly fastened on the sliding slot (6), and the connector (4) being capable of edge
The length direction sliding of the sliding slot (6), and the connector (4) can also be locked on the sliding slot (6).
4. the powder supply mechanism according to claim 3 for SLM printers, which is characterized in that in the sliding slot (6) along
Multiple rows of first mounting hole (9) is arranged in vertical direction from top to bottom, is provided on the connector (4) and first mounting hole
(9) matched second mounting hole, the connector (4) are bolted on the sliding slot (6).
5. the powder supply mechanism according to claim 3 for SLM printers, which is characterized in that first fixed plate (7)
Inner hollow setting, and the lower surface of first fixed plate (7) is provided with multiple air suction openings (10), on the frame body (1)
It is provided with dust catcher (8), the suction inlet of the dust catcher (8) is connected by conduit with the inside of first fixed plate (7).
6. the powder supply mechanism according to claim 1 for SLM printers, which is characterized in that first fixed plate (7)
The side being in contact with the powdering plate (3) is provided with the second fixing groove (11), is provided on the powdering plate (3) and described
Two fixing grooves (11) are matched raised (12).
7. the powder supply mechanism according to claim 6 for SLM printers, which is characterized in that second fixed plate (2)
The side being in contact with the powdering plate (3) is provided with rubber pad.
8. the powder supply mechanism according to claim 7 for SLM printers, which is characterized in that second fixed plate (2)
It is fixed by multiple screws between first fixed plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810038631.0A CN108453253A (en) | 2018-01-16 | 2018-01-16 | Powder supply mechanism for SLM printers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810038631.0A CN108453253A (en) | 2018-01-16 | 2018-01-16 | Powder supply mechanism for SLM printers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108453253A true CN108453253A (en) | 2018-08-28 |
Family
ID=63221421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810038631.0A Pending CN108453253A (en) | 2018-01-16 | 2018-01-16 | Powder supply mechanism for SLM printers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108453253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036904A (en) * | 2019-12-17 | 2020-04-21 | 安徽恒利增材制造科技有限公司 | Metal powder spreading device of small 3D printer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1397222B1 (en) * | 2001-05-21 | 2005-03-09 | Bu:St] Gmbh | Procedure for the production of a work piece with exact geometry . |
| CN105033251A (en) * | 2015-07-02 | 2015-11-11 | 西安交通大学 | Double-piston metal laser selective melting molding equipment |
| CN105383059A (en) * | 2015-12-02 | 2016-03-09 | 吉林大学 | 3D printing method and device for multi-material powder laying and molding |
| CN205128921U (en) * | 2015-11-20 | 2016-04-06 | 北京易加三维科技有限公司 | A initiative washing type shop powder scraper device for selective laser sintering equipment |
| CN205272601U (en) * | 2015-12-02 | 2016-06-01 | 吉林大学 | Powder and fashioned 3D printing device are spread to many materials |
| CN205270862U (en) * | 2016-01-11 | 2016-06-01 | 南京前知智能科技有限公司 | Powder mechanism of shop of selectivity laser melting equipment |
| CN106001565A (en) * | 2016-06-29 | 2016-10-12 | 中北大学 | Selective laser sintering (SLS) powder spreading device |
-
2018
- 2018-01-16 CN CN201810038631.0A patent/CN108453253A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1397222B1 (en) * | 2001-05-21 | 2005-03-09 | Bu:St] Gmbh | Procedure for the production of a work piece with exact geometry . |
| CN105033251A (en) * | 2015-07-02 | 2015-11-11 | 西安交通大学 | Double-piston metal laser selective melting molding equipment |
| CN205128921U (en) * | 2015-11-20 | 2016-04-06 | 北京易加三维科技有限公司 | A initiative washing type shop powder scraper device for selective laser sintering equipment |
| CN105383059A (en) * | 2015-12-02 | 2016-03-09 | 吉林大学 | 3D printing method and device for multi-material powder laying and molding |
| CN205272601U (en) * | 2015-12-02 | 2016-06-01 | 吉林大学 | Powder and fashioned 3D printing device are spread to many materials |
| CN205270862U (en) * | 2016-01-11 | 2016-06-01 | 南京前知智能科技有限公司 | Powder mechanism of shop of selectivity laser melting equipment |
| CN106001565A (en) * | 2016-06-29 | 2016-10-12 | 中北大学 | Selective laser sintering (SLS) powder spreading device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036904A (en) * | 2019-12-17 | 2020-04-21 | 安徽恒利增材制造科技有限公司 | Metal powder spreading device of small 3D printer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160297110A1 (en) | Cooling device of print head in 3D printer | |
| WO2016169004A1 (en) | Cooling method and device for print head of 3d printer | |
| JP2009119602A (en) | Printer | |
| CN108453253A (en) | Powder supply mechanism for SLM printers | |
| CN105798112A (en) | Punching machine for panel processing | |
| CN104842558B (en) | 3D printer print platform | |
| CN108453255A (en) | Multi-functional SLM printers | |
| CN210548103U (en) | Quick detach small-size SLM printer of quick change formula | |
| CN201023251Y (en) | Cutting device | |
| CN210792429U (en) | Inferior gram force plate printing machine | |
| CN216705952U (en) | Large-breadth movable wind field and scraper integrated powder spreading device suitable for selective laser melting | |
| CN206217347U (en) | Full automatic rotating disc type fine positioning printing platform | |
| CN108453252A (en) | Novel SLM printers | |
| CN210702869U (en) | Full-automatic all-in-one of remodeling of C shaped steel structure | |
| CN108213430A (en) | For the driving device of powdering mechanism | |
| JPWO2017086006A1 (en) | Cylindrical printing jig and printing apparatus using cylindrical printing jig | |
| CN102019757B (en) | Manufacturing method of liquid discharge head | |
| CN218366512U (en) | Heat dissipation nozzle for 3D printer | |
| CN111791479A (en) | 3D color printer and printing control method | |
| CN205522996U (en) | Solid quick -witted conveying mechanism of light | |
| CN215550852U (en) | Plastic uptake machine and vacuum plastic uptake forming device | |
| CN210363022U (en) | Synchronous pulley drive motor mounting position adjusting mechanism of industrial inkjet printer | |
| CN113093493A (en) | Office printer for increasing powder yield by vibrating, smashing and bonding carbon powder | |
| CN211138611U (en) | Intelligent environment-friendly digital printing equipment | |
| CN214774009U (en) | 3D printer of convenient maintenance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180828 |
|
| WD01 | Invention patent application deemed withdrawn after publication |