CN218660474U - A3D printer for laser vibration material disk - Google Patents
A3D printer for laser vibration material disk Download PDFInfo
- Publication number
- CN218660474U CN218660474U CN202221501324.XU CN202221501324U CN218660474U CN 218660474 U CN218660474 U CN 218660474U CN 202221501324 U CN202221501324 U CN 202221501324U CN 218660474 U CN218660474 U CN 218660474U
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- China
- Prior art keywords
- powder
- printer
- storage hopper
- spreading
- machine table
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 title description 4
- 239000000843 powder Substances 0.000 claims abstract description 202
- 230000007246 mechanism Effects 0.000 claims abstract description 64
- 230000007480 spreading Effects 0.000 claims abstract description 28
- 238000007648 laser printing Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims description 7
- 238000000149 argon plasma sintering Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 abstract 1
- 238000007639 printing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 238000000110 selective laser sintering Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000020610 powder formula Nutrition 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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Classifications
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- 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 utility model provides a 3D printer, which comprises a forming table, a laser printing head and a powder spreading mechanism; the powder spreading mechanism is arranged on the upper portion of the powder storage hopper, the powder spreading mechanism is arranged on the lower portion of the powder storage hopper, the powder storage hopper is arranged on the lower portion of the powder spreading mechanism, and the powder spreading mechanism can convey powder in the powder storage hopper to the powder discharge port. The utility model discloses 3D printer is through setting up the powder storage hopper in platform one side to this when spreading powder mechanism and removing this end, for spreading powder mechanism and supply the powder, above-mentioned powder storage hopper still is linked together through landslide and powder groove, thereby in time retrieves to recycle the powder of spreading powder mechanism scraping at every turn.
Description
Technical Field
The utility model belongs to the technical field of 3D prints, concretely relates to 3D printer for laser vibration material disk makes.
Background
The current 3D printing technology can be broadly divided into Fused Deposition Modeling (FDM), stereo Stereolithography (SLA), and powder modeling, wherein the powder modeling 3D printing technology can be subdivided into two broad categories, selective Laser Sintering (SLS) and Selective Laser Melting (SLM). For selective laser sintering 3D printing, the basic working principle is as follows: firstly, a layer of powder is paved on a forming table by a powder paving mechanism, then the powder is sintered according to a required cross section pattern through laser, after the sintering is finished, the forming table descends by a certain height, and then a layer of powder is paved on the forming table, and the required three-dimensional object is obtained through circulating layer-by-layer printing.
The powder supply mode of the existing laser sintering 3D printer can be divided into lower powder supply and upper powder supply, wherein the upper powder supply is that a powder feeding device is specifically arranged on a powder paving mechanism, powder is poured downwards in the walking process of the powder paving mechanism and is strickleed by a scraper, and finally, redundant powder is stricken into a powder groove. The powder supply mode has the biggest problem that the powder filled in the powder laying mechanism at one time is limited, and a large powder storage hopper needs to be arranged on the powder laying mechanism to meet the requirement of printing large-size objects, so that a series of obstacles are brought to the smooth operation of the powder laying mechanism.
SUMMERY OF THE UTILITY MODEL
Not enough to exist among the prior art, the utility model provides a 3D printer for laser vibration material disk makes for supply powder formula to spread powder mechanism and continuously supply the opposition problem between powder and the part volume on solving.
The utility model discloses a following technical means realizes above-mentioned technical purpose.
A laser sintering 3D printer: the surface of the machine table is movably connected with a powder spreading mechanism, the top of the powder spreading mechanism is provided with a powder supply funnel, and the opening degree of the powder supply funnel is adjustable; a powder groove is formed in one side of the machine table, a powder storage hopper is arranged on one side, close to the powder groove, of the machine table, the lower end of the powder groove is communicated with the powder storage hopper, a discharge hole is formed in the upper portion of the powder storage hopper, and when the powder spreading mechanism moves to the position of the powder storage hopper, the discharge hole is just opposite to the powder supply hopper; the powder storage hopper is internally provided with a powder feeding mechanism, and the powder feeding mechanism can convey powder in the powder storage hopper to the discharge hole.
Further, the powder feeding mechanism comprises an annular conveyor belt which is vertically arranged, and a plurality of buckets are uniformly arranged on the surface of the conveyor belt.
Furthermore, the end part of the discharge hole is connected with a turning plate through a spring rotating shaft, the turning plate is positioned on a moving path of the bucket, and when the turning plate is not influenced by external force, the turning plate is in an inclined upward tilting state.
Furthermore, a torsion spring is arranged in the spring rotating shaft.
Further, a feeding hole is formed in the outer side of the powder storage hopper.
Furthermore, two guide rails are symmetrically arranged on two sides of the upper surface of the machine table, and the powder spreading mechanism is movably connected between the two guide rails.
Furthermore, a valve is arranged at the bottom of the powder supply funnel and comprises a sleeve and a cylindrical valve core, and the valve core is rotatably connected in the sleeve; powder outlets are symmetrically formed in the upper side and the lower side of the sleeve, a powder passing channel is formed in the valve core, and the powder passing channel is matched with the powder outlets to achieve adjustment of the opening of the powder supply funnel.
Furthermore, the lower end of the powder paving mechanism is provided with a scraper and a powder pressing roller which are respectively positioned on two sides of the powder outlet.
Furthermore, the middle part of the machine table is provided with a forming cylinder, a forming table is arranged in the forming cylinder, and a laser printing head is arranged above the forming table. The bottom of the forming cylinder is provided with a lifting mechanism, and the lifting mechanism is connected with the forming table.
The utility model has the advantages that:
(1) The utility model provides a 3D printer, through setting up the powder storage hopper in one side of the machine platform to this when spreading the powder mechanism and moving to this end, supply the powder for spreading the powder mechanism, thus effectively reduce the structural dimension who spreads the powder mechanism, improve its steady operation ability, also indirectly promoted simultaneously and spread the powder quality; the powder storage hopper is also communicated with the powder groove through a landslide, so that the powder scraped by the powder paving mechanism each time is timely recycled.
(2) In the 3D printer of the utility model, the powder in the powder storage hopper is conveyed upwards in a bucket mode, and the turning plate structure is arranged to receive the falling powder when the bucket turns each time, so that the powder conveyed each time is ensured to fall into the discharge hole as much as possible; meanwhile, the turning plate structure can also be turned over by the turning plate structure, so that the interference influence on the operation of the bucket is avoided.
(3) The utility model discloses the setting is at the valve of spreading powder mechanism lower extreme, through the rotation angle of regulation and control case, can effective control valve aperture size to can construct the moving speed looks adaptation with the shop powder of difference, promote and spread the powder quality.
Drawings
Fig. 1 is a structure diagram of the 3D printer of the present invention;
fig. 2 is a structure diagram of a printing table printed by the 3D printer of the present invention;
FIG. 3 is a structural diagram of the powdering device of the present invention;
FIG. 4 is a structural diagram of the powder spreading mechanism of the present invention;
fig. 5 is a structure view of the valve body of the present invention.
Reference numerals:
1-a laser print head; 2-a powder spreading mechanism; 21-powder supply funnel; 22-a scraper;
23-a powder pressing roller; 24-a sleeve; 25-powder outlet; 26-a valve core;
27-a powder passage; 3-a guide rail; 4-a machine table; 41-forming cylinder;
42-a forming table; 43-a lifting mechanism; 5-powder groove; 51-landslide;
6-powder storage hopper; 61-a discharge port; 62-a feed port; 63-a conveyor belt;
64-a bucket; 65-turning over the board; 66-spring spindle.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1 and 2, in the 3D printer, a concave forming cylinder 41 is disposed in the middle of the machine table 4, a forming table 42 is disposed in the forming cylinder 41, and the forming table 42 is movably connected with the forming cylinder 41 and can slide up and down along the forming cylinder 41; the bottom of the forming cylinder 41 is provided with a lifting mechanism 43, and the lifting mechanism 43 is connected with the forming table 42, so that the forming table 4 is supported and lifted through the lifting mechanism 41; the lifting mechanism 43 may specifically adopt an existing lifting structure such as a screw lifting structure, and thus the specific structural composition thereof is not described herein. A laser printing head 1 is suspended above the machine table 4, and the printing range of the laser printing head 1 can cover the whole forming table 42. Two guide rails 3 are symmetrically arranged on two sides of the upper surface of the machine table 4, a powder laying mechanism 2 is connected between the two guide rails 3, and the powder laying mechanism 2 can be supported on the guide rails 3 and moves along the surface of the forming table 42.
The surface of the machine table 4 is further provided with a powder groove 5, the powder groove 5 is positioned on one side of the forming table 42 and is positioned on a moving path of the powder paving mechanism 2, so that the powder paving mechanism 2 can scrape redundant powder on the forming table 42 into the powder groove 5. A powder storage hopper 6 is arranged on the side of the machine table 4, and the lower end of the powder groove 5 is communicated with the powder storage hopper 6 through a landslide 51.
As shown in fig. 1 and 3, an inlet 62 is provided outside the powder storage hopper 6 to supply powder to the powder storage hopper 6 from the outside. The upper part of the inner side of the powder storage hopper 6 is provided with a discharge port 61, the discharge port 61 is specifically of a ramp structure, and when the powder paving mechanism 2 moves to the end of the powder storage hopper 6, the lower end of the discharge port 61 is just opposite to the powder supply hopper 21 at the top of the powder paving mechanism 2. A powder feeding mechanism is arranged in the powder storage hopper 6 and used for conveying the powder stored at the bottom of the powder storage hopper 6 to the discharge port 61 above and further sliding out from the discharge port 61. The powder feeding mechanism comprises an annular conveyor belt 63 which is vertically arranged, and a plurality of buckets 64 which are uniformly arranged on the surface of the conveyor belt 63, wherein the upper end of the conveyor belt 63 is higher than the discharge hole 61; during the operation of the conveyor belt 63, the bucket 64 is driven to scoop the powder from the bottom of the powder storage hopper 6, and then the powder is conveyed to the top of the powder storage hopper 6, and the powder is poured into the discharge port 61 during the process of turning the top.
As shown in fig. 3, a turning plate 65 is connected to the upper end of the discharge port 61, and the turning plate 65 is connected to the discharge port 61 through a spring rotating shaft 66. The flap 65 is located in the moving path of the bucket 64 and is used for helping the discharging port 61 to receive powder poured out by the bucket 64. A torsion spring is arranged in the spring rotating shaft 66, and the turning plate 65 is kept in an obliquely upward tilting state shown in fig. 1 under the action of the torsion spring under the condition of normally not receiving external force; when the bucket 64 presses the turning plate 65 downwards, the turning plate 65 turns downwards around the spring rotating shaft 66, so that the bucket 64 is avoided from a passage; once the bucket 64 is removed, the flap 65 is turned upwards and returns to the original state under the action of the torsion spring.
As shown in fig. 4 and 5, a powder supply funnel 21 is arranged at the top of the powder spreading mechanism 2, and a valve is arranged at the bottom of the powder supply funnel 21. The valve includes a sleeve 24 and a spool 26; the valve core 26 is a cylindrical structure and is rotatably connected in the sleeve 24. The upper side and the lower side of the sleeve 24 are symmetrically provided with powder outlets 25, and the valve core 26 is provided with corresponding powder passing channels 27. By rotating the valve core 26, the powder passing channel 27 and the powder outlet 25 can be combined or staggered, wherein when the powder passing channel 27 rotates to a vertical state, the powder outlets 25 on the upper side and the lower side are completely combined with the powder passing channel 27, so that the upper powder outlet 25 and the lower powder outlet 25 are communicated through the powder passing channel 27, and the valve is in an open state and has the largest opening degree; when the powder passing channel 27 rotates to a horizontal state, for example, the powder passing channel 27 is staggered with the powder outlets 25 at the upper and lower sides, and the valve is in a closed state.
The lower end of the powder spreading mechanism 2 is also provided with a scraper 22 and a powder pressing roller 23, and the scraper 22 and the powder pressing roller 23 are respectively positioned at two sides of the powder outlet 25. When powder is spread, the opening degree of the valve is controlled by adjusting the rotation angle of the valve core 26, so that the powder discharging speed of the powder spreading mechanism 2 is controlled, meanwhile, in the process that the powder spreading mechanism 2 moves towards one end, the powder on the table top is scraped to be flat by the scraper 22, when the scraper 22 scrapes redundant powder into the powder groove 5, the powder spreading mechanism 2 moves reversely, and at the moment, the powder on the forming table 42 is compacted by the powder pressing roller 23.
In the printing process of the 3D printer, when the powder spreading mechanism 2 scrapes redundant powder on the table top into the powder groove 5, the powder can be collected into the powder storage hopper 6 again through the landslide 51, then the powder in the powder storage hopper 6 is output to the discharge port 61 through the powder feeding mechanism, and the powder is supplemented to the powder supply hopper 21 at the top of the powder spreading mechanism 2 through the discharge port 61. Therefore, the volume size of the powder paving mechanism 2 can be properly reduced, the running stability of the powder paving mechanism is improved, and the powder paving quality is finally and indirectly improved.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The present invention is not limited to the above embodiments, and any obvious improvement, replacement or deformation that can be made by those skilled in the art without departing from the essence of the present invention belongs to the protection scope of the present invention.
Claims (9)
1. The utility model provides a 3D printer which characterized in that: the laser sintering 3D printer is characterized in that a forming cylinder (41) is arranged in the middle of a machine table (4), a forming table (42) is arranged in the forming cylinder (41), and a laser printing head (1) is arranged above the forming table (42); the surface of the machine table (4) is movably connected with a powder spreading mechanism (2), the top of the powder spreading mechanism (2) is provided with a powder supply funnel (21), and the opening of the powder supply funnel (21) is adjustable; a powder groove (5) is formed in one side of the machine table (4), a powder storage hopper (6) is arranged on one side, close to the powder groove (5), of the machine table (4), the lower end of the powder groove (5) is communicated with the powder storage hopper (6), a discharge hole (61) is formed in the upper portion of the powder storage hopper (6), and when the powder spreading mechanism (2) moves to the position where the powder storage hopper (6) is located, the discharge hole (61) is just opposite to the powder supply hopper (21); and a powder feeding mechanism is arranged in the powder storage hopper (6), and can convey powder in the powder storage hopper (6) to the discharge hole (61).
2. The 3D printer of claim 1, wherein: the powder feeding mechanism comprises an annular conveying belt (63) which is vertically arranged, and a plurality of buckets (64) are uniformly arranged on the surface of the conveying belt (63).
3. The 3D printer of claim 2, wherein: the end part of the discharge port (61) is connected with a turning plate (65) through a spring rotating shaft (66), the turning plate (65) is positioned on the moving path of the bucket (64), and when the external force is not applied, the turning plate (65) is in an inclined upward tilting state.
4. The 3D printer of claim 3, wherein: a torsion spring is arranged in the spring rotating shaft (66).
5. The 3D printer of claim 1, wherein: and a feeding hole (62) is formed in the outer side of the powder storage hopper (6).
6. The 3D printer of claim 1, wherein: two guide rails (3) are symmetrically arranged on two sides of the upper surface of the machine table (4), and the powder spreading mechanism (2) is movably connected between the two guide rails (3).
7. The 3D printer of claim 1, wherein: the bottom of the powder supply funnel (21) is provided with a valve, the valve comprises a sleeve (24) and a cylindrical valve core (26), and the valve core (26) is rotatably connected in the sleeve (24); powder outlets (25) are symmetrically formed in the upper side and the lower side of the sleeve (24), a powder passing channel (27) is formed in the valve core (26), and the powder passing channel (27) is matched with the powder outlets (25) to adjust the opening of the powder supply funnel (21).
8. The 3D printer of claim 7, wherein: the lower end of the powder paving mechanism (2) is provided with a scraper (22) and a powder pressing roller (23), and the scraper and the powder pressing roller are respectively positioned on two sides of the powder outlet (25).
9. The 3D printer of claim 1, wherein: the bottom of the forming cylinder (41) is provided with a lifting mechanism (43), and the lifting mechanism (43) is connected with the forming table (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221501324.XU CN218660474U (en) | 2022-06-16 | 2022-06-16 | A3D printer for laser vibration material disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221501324.XU CN218660474U (en) | 2022-06-16 | 2022-06-16 | A3D printer for laser vibration material disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218660474U true CN218660474U (en) | 2023-03-21 |
Family
ID=85533811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221501324.XU Expired - Fee Related CN218660474U (en) | 2022-06-16 | 2022-06-16 | A3D printer for laser vibration material disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218660474U (en) |
-
2022
- 2022-06-16 CN CN202221501324.XU patent/CN218660474U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230321 |