CN114559061A - Self-repairing powder spreading scraper and self-repairing method thereof - Google Patents
Self-repairing powder spreading scraper and self-repairing method thereof Download PDFInfo
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- CN114559061A CN114559061A CN202210184941.XA CN202210184941A CN114559061A CN 114559061 A CN114559061 A CN 114559061A CN 202210184941 A CN202210184941 A CN 202210184941A CN 114559061 A CN114559061 A CN 114559061A
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- Prior art keywords
- powder
- scraper
- spreading
- powder spreading
- repairing
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- 239000000843 powder Substances 0.000 title claims abstract description 150
- 230000007480 spreading Effects 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims description 12
- 230000008569 process Effects 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 3
- 238000010410 dusting Methods 0.000 claims description 2
- 230000008439 repair process Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007639 printing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
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- 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
- 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]
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
Abstract
The invention discloses a self-repairing powder spreading scraper which comprises at least two powder spreading scrapers arranged in the powder spreading direction of a powder spreading plane, wherein knife edges between adjacent powder spreading scrapers are arranged in an aligned mode; each powder paving scraper can horizontally slide in the direction perpendicular to the powder paving direction, so that the self-repairing of the notch of the powder paving scraper is realized. The beneficial effects of the invention are: 1) the powder spreading scrapers are arranged along the powder spreading direction, so that adjacent powder spreading scrapers can slide along the length direction of the scrapers when the gaps appear on the edges of the powder spreading scrapers, the gaps are filled, and the scrapers are repaired; 2) spread the planar powder range of powder and set up the scraper along spreading the powder direction outside and repair and reset, the scraper when the breach needs to be repaired appearing, through the wedge dog that the scraper repaired reset and set up, make the scraper slide to realize the automatic restoration of scraper.
Description
Technical Field
The invention relates to the technical field of 3D printing scrapers, in particular to a self-repairing powder laying scraper and a self-repairing method thereof.
Background
In the powder bed laser melting metal 3D printing technology, a scraper is used as powder laying equipment and is directly related to the quality of laid powder, and the quality of the scraper is very important to the printing success rate. In the printing process, the part may be partially warped and higher than the powder plane, and the part is scraped with the scraper, so that the scraper is notched. Therefore, the powder spreading effect is affected, printing has to be stopped, the printing chamber is opened, and the operation is continued after the scraper is replaced. The process is time-consuming, the printing efficiency is influenced, the part is cooled, and the continuous printing effect of the part is influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a self-repairing powder laying scraper which is convenient and fast in structural design and repair and a self-repairing method thereof.
The technical scheme of the invention is as follows:
a self-repairing powder spreading scraper comprises at least two powder spreading scrapers arranged in the powder spreading direction of a powder spreading plane, and knife edges between adjacent powder spreading scrapers are arranged in an aligned mode; each powder paving scraper can horizontally slide in the direction perpendicular to the powder paving direction, so that the self-repairing of the notch of the powder paving scraper is realized.
Further, spread the setting of whitewashed scraper and spreading on whitewashed scraper frame, spread and be equipped with the spout on the whitewashed scraper frame, spread the whitewashed scraper and include scraper main part and set up the slider at scraper main part top, just the slider cooperation sets up in the spout.
Further, be equipped with scraper slide device on the shop's powder scraper, and can realize shop's powder scraper through scraper slide device and slide each other.
Furthermore, the scraper sliding device comprises a wedge-shaped stop block and a sliding block matched with the wedge-shaped stop block; the sliding block sets up the one end at shop's powder scraper, the setting of wedge dog is on shop's powder plane, and the wedge dog is located shop powder planar normal shop powder scope outside.
Furthermore, the sliding block comprises a pulley bracket and a pulley arranged on the pulley bracket.
A self-repairing method of a self-repairing powder-laying scraper comprises the following steps:
1) arranging powder spreading scrapers at the front and back adjacent positions on the powder spreading plane along the powder spreading direction, and installing the powder spreading scrapers and the powder spreading scraper frame in a matched manner;
2) a scraper repairing position is arranged outside the powder spreading range of the powder spreading plane along the powder spreading direction, and a wedge-shaped stop block is arranged on the scraper repairing position;
3) in the normal powder paving process, the powder paving scraper moves in the powder paving range along the powder paving direction in two directions; when a gap of the powder paving scraper needs to be repaired, the powder paving scraper slides in the length direction of the powder paving scraper through the interaction between the pulley and the wedge-shaped block, so that the gap of the scraper is filled;
4) and returning the powder paving scraper to the powder paving range for normal powder paving.
The invention has the beneficial effects that:
1) through spreading the powder direction and setting up two at least powder scrapers for spread the powder scraper edge of a knife and can slide adjacent powder scraper along scraper length direction appearing the breach, realize filling to breach department, thereby realize the scraper and restore.
2) Spread the planar powder range of powder and set up the scraper along spreading the powder direction outside and repair and reset, the scraper when the breach needs to be repaired appearing, through the wedge dog that the scraper repaired reset and set up, make the scraper slide to realize the automatic restoration of scraper.
3) Spread the selfreparing function of whitewashed scraper, need not to open when the scraper is damaged and print the bin and change the scraper, and the selfreparing is changed the scraper relatively and is greatly shortened consuming time, improves and influences printing efficiency, and can not lead to the part cooling, improves the part and continues to print the effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the installation structure of the powder spreading scraper of the present invention;
FIG. 3 is a schematic view of a half-section of the present invention;
FIG. 4 is a schematic view of the powder spreading blade of the present invention in a normal powder spreading state;
FIG. 5 is a schematic view of the dusting blade of the present invention in a repaired state;
in the figure: 1. spreading a powder plane; 2. spreading a powder scraper; 201. a scraper body; 202. a slider; 3. spreading a powder scraper frame; 301. a chute; 4. a pulley bracket; 5. a pulley; 6. a wedge-shaped block.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-5, a self-repairing powder spreading scraper comprises a powder spreading plane 1, a powder spreading scraper 2, a scraper main body 201, a sliding block 202, a powder spreading scraper frame 3, a sliding groove 301, a pulley support 4, a pulley 5 and a wedge-shaped stopper 6.
Example (b):
two powder spreading scrapers 2 are arranged in the powder spreading direction of the powder spreading plane 1, the two powder spreading scrapers are arranged in close proximity, and the knife edges of the two powder spreading scrapers 2 are arranged in alignment; each powder paving scraper 2 can horizontally slide in the direction perpendicular to the powder paving direction, so that the self-repairing of the notch of the powder paving scraper 2 is realized.
The powder spreading scraper 2 is arranged on the powder spreading scraper frame 3, and the powder spreading scraper frame 3 is provided with a sliding groove 301.
Shop's powder scraper 2 includes scraper main part 201 and sets up the slider 202 at scraper main part 201 top, and the slider 202 cooperation sets up in spout 301 to realize shop's powder scraper 2's sliding guide and sliding stability.
One end of each of the two powder paving scrapers 2 is provided with a pulley bracket 4, the pulley brackets 4 are positioned at the same side of the powder paving scrapers 2, and pulleys 5 are arranged on the pulley brackets 4; wedge-shaped stoppers 6 are arranged outside the normal powder spreading range on the powder spreading plane 1, and the positions of the wedge-shaped stoppers 6 correspond to the positions of the pulleys 5 one by one;
when pulley 5 and wedge dog 6 contact, under the effect on the 6 inclined planes of wedge dog, two powder scraper 2 of shop of drive take place to slide each other, and damaged scraper breach is filled up by another scraper like this to the selfreparing of powder scraper 2 is spread in the realization.
A self-repairing method of a self-repairing powder-spreading scraper comprises the following specific steps:
1) two powder spreading scrapers 2 are arranged on the powder spreading plane 1 at the front and back adjacent positions along the powder spreading direction, and the powder spreading scrapers 2 are installed with a powder spreading scraper frame 3 in a matching way;
2) a scraper repairing position is arranged outside the powder spreading range of the powder spreading plane 1 along the powder spreading direction, and a pair of wedge-shaped stop blocks are arranged on the scraper repairing position;
3) in the normal powder laying process, the powder laying scraper 2 moves along the powder laying direction in a two-way mode within the powder laying range; when a gap of the powder paving scraper 2 needs to be repaired, the powder paving scraper 2 slides in the length direction of the powder paving scraper 2 through the interaction between the pulley 5 and the wedge block 6, so that the gap of the scraper is filled;
4) the powder paving scraper 2 returns to the powder paving range to conduct normal powder paving;
5) and self-repairing is completed.
The invention adopts double-layer scraper technology (or multiple layers, at least two layers), and the two layers of scrapers can slide in the extension direction. When defects such as gaps appear on the scrapers, the two scrapers are staggered at the gaps through staggered sliding of the scrapers between the two layers, so that the whole scraper plane is restored to be horizontal, and the powder spreading plane is horizontal.
The embodiments described in this specification are only part of the forms that can be realized by the inventive concept, and the scope of the present invention should not be limited to the specific forms set forth in the embodiments, and the scope of the present invention and the equivalent technical means that can be conceived by those skilled in the art from the technical concept of the present invention.
Claims (6)
1. The self-repairing powder spreading scraper is characterized by comprising at least two powder spreading scrapers (2) arranged in the powder spreading direction of a powder spreading plane (1), and knife edges between the adjacent powder spreading scrapers (2) are arranged in an aligned mode; each powder paving scraper (2) can horizontally slide in the direction perpendicular to the powder paving direction, so that the self-repairing of the notch of the powder paving scraper (2) is realized.
2. The self-repairing powder spreading scraper of claim 1, wherein the powder spreading scraper (2) is arranged on a powder spreading scraper frame (3), a sliding groove (301) is formed in the powder spreading scraper frame (3), the powder spreading scraper (2) comprises a scraper main body (201) and a sliding block (202) arranged at the top of the scraper main body (201), and the sliding block (202) is arranged in the sliding groove (301) in a matched mode.
3. The self-repairing powder paving scraper blade of claim 1, characterized in that a scraper sliding device is arranged on the powder paving scraper blade (2), and the powder paving scraper blades (2) can slide mutually through the scraper sliding device.
4. The self-repairing powder spreading scraper of claim 3, wherein the scraper sliding device comprises a wedge-shaped stopper (6) and a sliding block matched with the wedge-shaped stopper (6); the sliding block sets up the one end at shop's powder scraper (2), wedge dog (6) set up on shop's powder plane (1), and wedge dog (6) are located the normal shop powder scope outside of shop's powder plane (1).
5. A self-repairing dusting scraper according to claim 4, characterised in that the sliding block comprises a pulley bracket (4) and a pulley (5) arranged on the pulley bracket (4).
6. The self-repairing method of the self-repairing powder-laying scraper blade of any one of claims 1-5, characterized by comprising the following steps:
1) arranging powder spreading scrapers (2) on the powder spreading plane (1) at positions close to the front and the back along the powder spreading direction, and installing the powder spreading scrapers (2) and the powder spreading scraper frame (3) in a matched mode;
2) a scraper repairing position is arranged outside the powder spreading range of the powder spreading plane (1) along the powder spreading direction, and a wedge-shaped stop block is arranged on the scraper repairing position;
3) in the normal powder laying process, the powder laying scraper (2) moves in the powder laying range along the powder laying direction in two directions; when a gap of the powder paving scraper (2) needs to be repaired, the powder paving scraper (2) slides in the length direction of the powder paving scraper (2) through the interaction between the pulley (5) and the wedge-shaped block (6), so that the gap of the scraper is filled;
4) and the powder spreading scraper (2) returns to the powder spreading range to perform normal powder spreading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210184941.XA CN114559061A (en) | 2022-02-28 | 2022-02-28 | Self-repairing powder spreading scraper and self-repairing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210184941.XA CN114559061A (en) | 2022-02-28 | 2022-02-28 | Self-repairing powder spreading scraper and self-repairing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114559061A true CN114559061A (en) | 2022-05-31 |
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ID=81715960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210184941.XA Pending CN114559061A (en) | 2022-02-28 | 2022-02-28 | Self-repairing powder spreading scraper and self-repairing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114559061A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116967482A (en) * | 2023-09-18 | 2023-10-31 | 山东创瑞激光科技有限公司 | Foldable scraper structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111990A (en) * | 2016-08-30 | 2016-11-16 | 西安铂力特激光成形技术有限公司 | A kind of two-way powder laying device and selective laser melting unit |
| CN106475562A (en) * | 2016-11-22 | 2017-03-08 | 上海航天精密机械研究所 | A kind of double scraper power spreading device of increasing material manufacturing attritive powder and its method |
| CN108099183A (en) * | 2017-11-27 | 2018-06-01 | 安徽拓宝增材制造科技有限公司 | A kind of two-way powder laying device of double scrapers |
| CN109732085A (en) * | 2018-12-13 | 2019-05-10 | 上海航天设备制造总厂有限公司 | A kind of double scraper mixing power spreading devices and application method for 3D printing |
| CN113524669A (en) * | 2021-07-07 | 2021-10-22 | 山东创瑞激光科技有限公司 | Powder falling and scraping structure suitable for double-laser printing equipment |
-
2022
- 2022-02-28 CN CN202210184941.XA patent/CN114559061A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111990A (en) * | 2016-08-30 | 2016-11-16 | 西安铂力特激光成形技术有限公司 | A kind of two-way powder laying device and selective laser melting unit |
| CN106475562A (en) * | 2016-11-22 | 2017-03-08 | 上海航天精密机械研究所 | A kind of double scraper power spreading device of increasing material manufacturing attritive powder and its method |
| CN108099183A (en) * | 2017-11-27 | 2018-06-01 | 安徽拓宝增材制造科技有限公司 | A kind of two-way powder laying device of double scrapers |
| CN109732085A (en) * | 2018-12-13 | 2019-05-10 | 上海航天设备制造总厂有限公司 | A kind of double scraper mixing power spreading devices and application method for 3D printing |
| CN113524669A (en) * | 2021-07-07 | 2021-10-22 | 山东创瑞激光科技有限公司 | Powder falling and scraping structure suitable for double-laser printing equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116967482A (en) * | 2023-09-18 | 2023-10-31 | 山东创瑞激光科技有限公司 | Foldable scraper structure |
| CN116967482B (en) * | 2023-09-18 | 2023-12-05 | 山东创瑞激光科技有限公司 | Foldable scraper structure |
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| SE01 | Entry into force of request for substantive examination | ||
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20240126 |
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| AD01 | Patent right deemed abandoned |