CN107931608A - It is a kind of to scrape knife plate with compacting functions - Google Patents
It is a kind of to scrape knife plate with compacting functions Download PDFInfo
- Publication number
- CN107931608A CN107931608A CN201711154254.9A CN201711154254A CN107931608A CN 107931608 A CN107931608 A CN 107931608A CN 201711154254 A CN201711154254 A CN 201711154254A CN 107931608 A CN107931608 A CN 107931608A
- Authority
- CN
- China
- Prior art keywords
- scraper
- plate body
- section
- holding tank
- compacting
- 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
-
- 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
- B22F10/10—Formation of a green body
-
- 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
-
- 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
-
- 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 a kind of knife plate is scraped with compacting functions,It is related to 3D printing field,Including scraper plate body,The scraper plate body includes compacting section and scraper section,The inclined plane for the chamfered shape that the compacting section opens up for scraper plate body lower edge,The scraper section includes scraper and holding tank,The scraper plate body lower edge offers the holding tank,Holding tank includes the dovetail groove and cylinder groove connected from bottom to top,The scraper is fixedly connected with below the holding tank,The lower edge of scraper is outside arc surface and extended spot scraper plate body,The present invention in scraper plate body by setting inclined plane,Granular powder enters inclined plane and treats the scraping between surface sweeping of scraper section processing,Certain pre-compacted carries out powder by inclined plane,So as to greatly reduce the height loss after sintering,The scraper of arc surface reduces will not destroy the flatness in powdering face with hanging the frictional force contacted between surface sweeping,It is consistent with theoretical value that Forming Workpiece height has been effectively ensured,Improve formed product precision.
Description
Technical field
The present invention relates to 3D printing field, and in particular to a kind of to scrape knife plate with compacting functions.
Background technology
In recent years, 3D printing was quickly grown, and was more and more paid attention to continuous expand of application field be subject to each side.With
The appearance of national every favourable policy, increasing material manufacturing also receive the favor of capital, in a foreseeable future in, increasing material manufacturing neck
Domain certainly will welcome the growth of explosion type.Increasing material manufacturing belongs to advanced Digitized Manufacturing Technology, it can quickly make according to CAD model
Produce the part with complex geometric shapes.Increases material manufacturing technology collection cad technique, Numeric Control Technology, laser technology and material technology
It is the developing direction of following advanced manufacturing technology Deng modern scientific and technical result in one.
Increases material manufacturing technology species is various, in terms of metal increases material manufacturing technology, selective laser melting technology (SLM:
Selected Laser Melting) be great development prospect metal parts increases material manufacturing technology, in print procedure, laser
Beam with rapid melting metal dust and can obtain continuously molten road, can directly obtain almost arbitrary shape, have it is completely metallurgical
With reference to, high-precision intimate densified metal component.Other metal increasing material manufacturing methods that compare such as LENS, SLS, DLF, EBM etc.,
SLM has the advantages that forming efficiency is high, precision is high, good mechanical performance.Selective laser melting technology is using laser as heat source pair
Dusty material making choice property laser fusion, is a kind of moulding process for being piled into 3D solid from level to level by discrete point.Selection
Property laser melting process, before processing is started, will first heat up, and keep filled with the operating room of inert atmosphere (argon gas or nitrogen)
Below the fusing point of powder.During shaping, feed cylinder rises, powdering roller movement, first in one layer of workbench upper berth fixed thickness
Dusty material, then laser beam under the control of the computer according to cross section profile to where solid section powder carry out laser add
Work, dissolves powder and then reaches metallurgical binding one layer of solid contour of formation.After the completion of first layer sintering, workbench, which declines, to be set
Fixation thickness height, repave last layer powder, carry out next layer of sintering, can be again sharp after the powder not utilized is recovered
With so circulation, forms three-dimensional prototype parts.
In actual forming process, no matter using rigidity or flexible scraper plate, powder after sintering, molding prototype zero
The height of part can all be less than theoretical value because powder is granular in itself, it is inevitable between each other can there are gap, sinter molding
During these gaps will disappear and cause total height lower slightly, if can be in sinter molding Ian to granular powder pre-compacted
The height loss after sintering can be greatly reduced.
The content of the invention
Knife plate is scraped with compacting functions it is an object of the invention to provide a kind of, to solve on caused by the prior art
State multinomial defect.
A kind of to scrape knife plate, including scraper plate body with compacting functions, the scraper plate body includes compacting section and scraper section,
The inclined plane for the chamfered shape that the compacting section opens up for scraper plate body lower edge, the scraper section include scraper and holding tank, institute
State scraper plate body lower edge and offer the holding tank, holding tank includes the dovetail groove and cylinder groove connected from bottom to top, the appearance
Receive and the scraper be fixedly connected with below groove, the lower edge of scraper for arc surface and extended spot scraper plate body outside.
Preferably, the material of the scraper plate body is metal or ceramics.
Preferably, the material of the scraper is silica gel.
Preferably, the compacting section is located at the front of scraper section, and the scraper plate body first passes through compacting section contact particles shape
Powder, then by scraper section contact powder.
Preferably, the holding tank is multiple with scraper, is respectively and fixedly provided with scraper below each holding tank, each is scraped
Knife side contacts with each other.
The advantage of the invention is that：By setting inclined plane in scraper plate body, granular powder enters the present invention
Inclined plane and treat the processing of scraper section scrape surface sweeping between, certain pre-compacted is carried out to powder by inclined plane, so as to subtract significantly
Height loss after few sintering, the scraper of arc surface reduces will not destroy powdering face with hanging the frictional force contacted between surface sweeping
Flatness, be effectively ensured Forming Workpiece height it is consistent with theoretical value, improve formed product precision.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the present invention.
Fig. 2 is the bottom view of the present invention.
Wherein, 1- scraper plate bodies, 2- inclined planes, 3- scrapers, 4- dovetail grooves, 5- cylinder grooves.
Embodiment
To make the technical means, the creative features, the aims and the efficiencies achieved by the present invention easy to understand, with reference to
Embodiment, the present invention is further explained.
As shown in Figure 1 to Figure 2, a kind of to scrape knife plate, including scraper plate body 1 with compacting functions, the scraper plate body 1 is wrapped
Include compacting section and scraper section, the inclined plane 2 for the chamfered shape that the compacting section opens up for 1 lower edge of scraper plate body, the scraper section
Including scraper 3 and holding tank, 1 lower edge of scraper plate body offers the holding tank, and holding tank includes what is connected from bottom to top
Dovetail groove 4 and cylinder groove 5, are fixedly connected with the scraper 3 below the holding tank, the lower edge of scraper 3 is arc surface and extension
Locate outside scraper plate body 1.
In the present embodiment, the material of the scraper plate body 1 is metal or ceramics.
In the present embodiment：The material of the scraper 3 is silica gel, and scraper 3 is flexible scraper.
In the present embodiment, the compacting section is located at the front of scraper section, and the scraper plate body 1 first passes through compacting section contact
Granular powder, then powder is contacted by scraper section.
In the present embodiment, the holding tank is multiple with scraper 3, and scraper 3 is respectively and fixedly provided with below each holding tank,
Each 3 side of scraper contacts with each other.
The holding tank of the present invention using the dovetail groove 4 and cylinder groove 5 that connect from bottom to top, by dovetail groove 4 and scraper 3 into
Row is fixedly connected, and cylinder groove 5 plays the role of resisting moment of torsion, prevents scraper 3 from coming off out of holding tank 3.
The present invention operation principle be：During work, granular powder first touches the inclined plane 2 of scraper plate body 1, is inclining
Pre-compacted to be realized under the pressure on inclined-plane 2, then powder is scraped by the realization of scraper 3 of scraper section, the lower edge of scraper 3 is designed as arc surface,
So scraper 3 and powder contact surfaces frictional force, which diminish, avoids scratch to powder, while the gap of arc surface and powder contact surfaces
Certain compaction is played to powder.
Based on above-mentioned, for the present invention by setting inclined plane 2 in scraper plate body 1, granular powder enters inclined plane 2
With treat the processing of scraper section scrape surface sweeping between, certain pre-compacted is carried out to powder by inclined plane 2, so as to greatly reduce sintering
Height loss afterwards, the scraper 3 of arc surface reduces will not destroy the smooth of powdering face with hanging the frictional force contacted between surface sweeping
Degree, be effectively ensured Forming Workpiece height it is consistent with theoretical value, improve formed product precision.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, all things considered, is all merely illustrative, not the only.Institute
Have within the scope of the present invention or be included in the invention in the change being equal in the scope of the present invention.
Claims (5)
1. a kind of scrape knife plate with compacting functions, it is characterised in that including scraper plate body (1), the scraper plate body (1) includes
It is compacted section and scraper section, the inclined plane (2) for the chamfered shape that the compacting section opens up for scraper plate body (1) lower edge, the scraper
Section includes scraper (3) and holding tank, and scraper plate body (1) lower edge offers the holding tank, and holding tank is included from bottom to top
The dovetail groove (4) and cylinder groove (5) of connection, are fixedly connected with the scraper (3), the lower edge of scraper (3) below the holding tank
For arc surface and extended spot scraper plate body (1) outside.
2. a kind of knife plate is scraped according to claim 1 with compacting functions, it is characterised in that：The scraper plate body (1)
Material be metal or ceramics.
3. a kind of knife plate is scraped according to claim 1 with compacting functions, it is characterised in that：The material of the scraper (3)
Matter is silica gel.
4. a kind of knife plate is scraped according to claim 1 with compacting functions, it is characterised in that：The compacting section, which is located at, scrapes
Expect the front of section, the scraper plate body (1) first passes through the powder of compacting section contact particles shape, then contacts powder by scraper section.
5. a kind of knife plate is scraped according to claim 1 with compacting functions, it is characterised in that：The holding tank and scraper
(3) it is multiple, is respectively and fixedly provided with scraper (3) below each holding tank, each scraper (3) side contacts with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154254.9A CN107931608A (en) | 2017-11-20 | 2017-11-20 | It is a kind of to scrape knife plate with compacting functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154254.9A CN107931608A (en) | 2017-11-20 | 2017-11-20 | It is a kind of to scrape knife plate with compacting functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107931608A true CN107931608A (en) | 2018-04-20 |
Family
ID=61931893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711154254.9A Pending CN107931608A (en) | 2017-11-20 | 2017-11-20 | It is a kind of to scrape knife plate with compacting functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107931608A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112620659A (en) * | 2020-12-11 | 2021-04-09 | 西安增材制造国家研究院有限公司 | Powder scraping device for high-temperature printing system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201693176U (en) * | 2010-06-13 | 2011-01-05 | 华南理工大学 | Quick forming flexible preset metal powder spreading device |
| CN104043830A (en) * | 2014-06-30 | 2014-09-17 | 湖南华曙高科技有限责任公司 | Additive manufacturing device composite powder compacting and spreading device and method |
| JPWO2013157513A1 (en) * | 2012-04-19 | 2015-12-21 | 古河電気工業株式会社 | Superconducting cable connection structure |
| CN106392065A (en) * | 2016-09-30 | 2017-02-15 | 西安铂力特激光成形技术有限公司 | Flexible powder laying device and manufacturing method thereof |
| CN106623918A (en) * | 2016-09-27 | 2017-05-10 | 华南理工大学 | Automatic reversing inclined powder laying device and method for mechanical laser selective melting |
| CN105436501B (en) * | 2016-01-08 | 2017-10-03 | 江苏永年激光成形技术有限公司 | SLM band compacting functions scraper plates |
-
2017
- 2017-11-20 CN CN201711154254.9A patent/CN107931608A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201693176U (en) * | 2010-06-13 | 2011-01-05 | 华南理工大学 | Quick forming flexible preset metal powder spreading device |
| JPWO2013157513A1 (en) * | 2012-04-19 | 2015-12-21 | 古河電気工業株式会社 | Superconducting cable connection structure |
| CN104043830A (en) * | 2014-06-30 | 2014-09-17 | 湖南华曙高科技有限责任公司 | Additive manufacturing device composite powder compacting and spreading device and method |
| CN105436501B (en) * | 2016-01-08 | 2017-10-03 | 江苏永年激光成形技术有限公司 | SLM band compacting functions scraper plates |
| CN106623918A (en) * | 2016-09-27 | 2017-05-10 | 华南理工大学 | Automatic reversing inclined powder laying device and method for mechanical laser selective melting |
| CN106392065A (en) * | 2016-09-30 | 2017-02-15 | 西安铂力特激光成形技术有限公司 | Flexible powder laying device and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112620659A (en) * | 2020-12-11 | 2021-04-09 | 西安增材制造国家研究院有限公司 | Powder scraping device for high-temperature printing system |
| CN112620659B (en) * | 2020-12-11 | 2022-08-30 | 西安增材制造国家研究院有限公司 | Powder scraping device for high-temperature printing system |
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| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180420 |