CN214605914U - Powder supply mechanism used in selective laser sintering forming device - Google Patents
Powder supply mechanism used in selective laser sintering forming device Download PDFInfo
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- CN214605914U CN214605914U CN202120737281.4U CN202120737281U CN214605914U CN 214605914 U CN214605914 U CN 214605914U CN 202120737281 U CN202120737281 U CN 202120737281U CN 214605914 U CN214605914 U CN 214605914U
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Abstract
The utility model relates to a powder supply mechanism used in a selective laser sintering forming device, which comprises an aluminum profile frame and two powder supply boxes; the powder supply boxes are fixed on two sides of the aluminum profile frame, an arc-shaped groove is arranged at the upper end opening of each powder supply box and the side adjacent to the aluminum profile frame, the arc-shaped grooves are inclined inwards, and the tail ends of the arc-shaped grooves are powder leakage openings; a scraper is arranged at the upper port of the powder supply box and is connected with a synchronous belt through a scraper gear, the synchronous belt is sleeved outside two synchronous belt wheels, and each synchronous belt wheel is connected with a synchronous stepping motor; the powder supply box bottom plate comprises a powder box upper plate and a powder box lower plate, a lead screw penetrates through the powder box lower plate and is fixedly connected with the powder box upper plate, the lead screw is in threaded connection with the powder box lower plate, a stepping motor is lifted to output an output shaft, the powder box upper plate is in sliding connection with the powder box wall, and the powder box lower plate is fixedly connected with the powder box wall. The utility model discloses can supply with different kinds of powder simultaneously, realize preparing the shaping part by different powder sintering.
Description
The technical field is as follows:
the utility model relates to a selectivity laser sintering shaping technical field, concretely relates to supply powder mechanism that uses among selectivity laser sintering forming device.
Background art:
3D printing (3 DP), a technique for rapid prototyping, also known as additive manufacturing, is a technique that constructs an object by printing layer by layer using a bondable material, such as powdered metal or non-metal, based on a digital model file. 3D printing is typically achieved using digital technology material printers. The method is often used for manufacturing models in the fields of mold manufacturing, industrial design and the like, and is gradually used for directly manufacturing some products, and parts printed by the technology are already available. The technology has applications in jewelry, footwear, industrial design, construction, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firearms, and other fields. The development of 3D printing manufacturing technology industrialization has strategic significance on structure transformation in China, and the 3D printing technology can promote structure transformation adjustment in China and improve the manufacturing level.
The Selective Laser Sintering (SLS) process is the most advanced 3D printing technique, which is called laser sintering technique for short, and mainly uses powder and the like as materials, and the principle is to laser sinter powder materials to combine and form the powder materials. The SLS technique also uses the principle of layup build-up forming, except that it first lays a layer of powder material, preheats the material to near the melting point, scans the layer across the cross-section with a laser to raise the powder temperature to the melting point, then sinters to form a bond, and then repeats the process of laying and sintering until the entire mold is formed. The powder plays an important role in the forming process of parts, but at present, the powder supply box cannot supply different types of powder simultaneously, and only one type of powder can be laid in the whole powder laying process.
The invention content is as follows:
the utility model aims at providing a supply powder mechanism that uses among selectivity laser sintering forming device, the powder mechanism that supplies that uses among this kind of selectivity laser sintering forming device is arranged in solving the whole problem of laying powder in-process and only can laying same kind of powder among the present selectivity laser sintering technology.
The utility model provides a technical scheme that its technical problem adopted is: the powder supply mechanism used in the selective laser sintering forming device comprises an aluminum profile frame and two powder supply boxes; the powder supply boxes are fixed on two sides of the aluminum profile frame, an arc-shaped groove is arranged at the upper end opening of each powder supply box and the side adjacent to the aluminum profile frame, the arc-shaped grooves are inclined inwards, and the tail ends of the arc-shaped grooves are powder leakage openings; a scraper is arranged at the upper port of the powder supply box and is connected with a synchronous belt through a scraper gear, the synchronous belt is sleeved outside two synchronous belt wheels, and each synchronous belt wheel is connected with a synchronous stepping motor; the powder supply box bottom plate comprises a powder box upper plate and a powder box lower plate, a lead screw penetrates through the powder box lower plate and is fixedly connected with the powder box upper plate, the lead screw is in threaded connection with the powder box lower plate, a stepping motor is lifted to output an output shaft, the powder box upper plate is in sliding connection with the powder box wall, and the powder box lower plate is fixedly connected with the powder box wall.
The utility model discloses following beneficial effect has:
the utility model discloses can supply with different types of powder simultaneously, can prepare the shaping part by different powder sintering, realize that selectivity laser sintering SLS mixes and supplies the powder, change and supply the single current situation of powder.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a powder supply box of the present invention;
FIG. 3 is a schematic view of a lifting device according to the present invention;
FIG. 4 is a schematic view of the selective laser sintering molding apparatus of the present invention;
FIG. 5 is a schematic view of the connection relationship between the arc-shaped groove, the linear guide rail and the powder spreading roller system in FIG. 4.
In the figure: 1, an aluminum profile frame; 2, a powder supply box; 3, an arc-shaped groove; 4, scraping a cutter; 5, a synchronous stepping motor; 6, synchronous belts; 7 lifting device; 8, putting the powder box on a plate; 9, a lower plate of the powder box; 10 leading screws; 11 lifting the stepping motor; 12 powder box wall; 13 linear guide rails; 14 a preheating device; 15 a powder roller system; 16, painting; 17 forming a forming box; 18 galvanometer systems; 19 a recovery tank.
The specific implementation mode is as follows:
the invention will be further explained with reference to the drawings:
as shown in fig. 1 to fig. 3, the powder supply mechanism used in the selective laser sintering molding device includes an aluminum profile frame 1, two powder supply boxes 2; the powder supply boxes 2 are fixed on two sides of the aluminum profile frame 1, an arc-shaped groove 3 is arranged at the side, adjacent to the aluminum profile frame 1, of the upper port of each powder supply box 2, the arc-shaped grooves 3 are inclined inwards, and an arc-shaped groove powder leakage opening is formed in the tail end of a powder leakage channel of each arc-shaped groove 3; a scraper 4 is arranged at the upper port of the powder supply box 2, the scraper 4 is connected with a synchronous belt 6 through a scraper gear, the synchronous belt 6 is sleeved outside two synchronous belt wheels, and each synchronous belt wheel is connected with a synchronous stepping motor 5; the powder supply box 2 bottom plate comprises a powder box upper plate 8 and a powder box lower plate 9, a screw rod 10 penetrates through the powder box lower plate 9 and is fixedly connected with the powder box upper plate 8, the screw rod 10 is in threaded connection with the powder box lower plate 9, an output shaft of a lifting stepping motor 11 is connected with the screw rod 10, the powder box upper plate 8 is in sliding connection with a powder box wall 12, and the powder box lower plate 9 is fixedly connected with the powder box wall 12. The upper powder box plate 8, the lower powder box plate 9, the lead screw 10 and the lifting stepping motor 11 form a lifting device 7.
The scraper 4 bottom is tangent but does not influence the removal of scraper 4 with supplying the 2 upper surfaces of powder case, and synchronous stepping motor 5 can realize just reversing, drives 6 reciprocating motion of hold-in range to drive scraper 4 reciprocating motion, the powder that will supply powder case 2 to supply from this indirect drive scraper 4 scrapes the hourglass powder passageway of going into arc wall 3, spills from the hourglass powder mouth.
When the utility model is used in a selective laser sintering forming device, as shown in fig. 4 and 5, a forming box 17, two recycling boxes 19, a galvanometer system 18, a linear guide rail 13, a preheating device 14, a powder spreading roller system 15 and two powder brushes 16 of the selective laser sintering forming device are all arranged on an aluminum profile frame 1; the vibrating mirror system 18 is arranged at the top of the aluminum profile frame 1, the linear guide rail 13 and the preheating device 14 are fixed at the middle position of the aluminum profile frame 1, the powder spreading roller system 15 is connected with the linear guide rail 13 in a sliding manner, and a powder brush 16 is respectively arranged at the position where the powder spreading roller system stops for a short time in motion and used for cleaning powder attached to the surface of the powder spreading roller; and a forming box 17 is arranged below the powder leakage openings of the two arc-shaped grooves, two recycling boxes 19 are respectively arranged on two sides of the forming box 17, and the painting 16 is positioned at the upper end openings of the corresponding recycling boxes 19.
The powder that two confession powder casees supplied with is two kinds of different kinds of powder, and the powder of retrieving in two collection box is also different kinds of powder, and the powder that the left side supplied powder case to supply can be retrieved to the collection box on the right, and the powder that the right side supplied powder case to supply can be retrieved to the collection box on the left.
The selective laser sintering forming device supplies powder, spreads the powder, and the surplus powder is retrieved and the laser sintering process is: after the device is started, the lifting device at the bottom of the powder supply box 2 filled with the powder a moves upwards for a certain height, the scraper 4 pushes the powder into the arc-shaped groove 3 under the driving of the stepping motor, powder a finally leaks from a powder leakage opening through a powder leakage channel of the arc-shaped groove 3 and falls to the upper surface of a partition plate between the forming box 17 and the recovery box 19, at the moment, the powder spreading roller system 15 is driven by the stepping motor on the linear guide rail 13 to move from right to left until the powder spreading roller is contacted with the left powder brush 16, the powder spreading is completed, the rest powder is pushed into the recovery box 19, then the powder spreading roller rotates under the rotation of the stepping motor, the powder brush 16 repeatedly cleans the powder a attached to the surface of the powder spreading roller, the powder recovery is completed, meanwhile, after the laser beam emitted by the laser emitter in the galvanometer system 18 is emitted twice by the Y galvanometer and the X galvanometer, the direction is changed twice, and finally laser sintering is carried out on the laid powder through a field lens; after sintering, the powder supply box 2 starts to supply powder again, the steps are repeated, and finally the residual powder falls into the recovery box 19.
Claims (1)
1. The utility model provides a powder mechanism that supplies that uses in selectivity laser sintering forming device which characterized in that: the powder supply mechanism used in the selective laser sintering forming device comprises an aluminum profile frame (1) and two powder supply boxes (2); the powder supply boxes (2) are fixed on two sides of the aluminum profile frame (1), an arc-shaped groove (3) is arranged at the upper end of each powder supply box (2) and on the side adjacent to the aluminum profile frame (1), the arc-shaped grooves (3) are inclined inwards, and the tail ends of the arc-shaped grooves (3) are powder leakage openings; a scraper (4) is arranged at the upper end opening of the powder supply box (2), the scraper (4) is connected with a synchronous belt (6) through a scraper gear, the synchronous belt (6) is sleeved outside two synchronous belt wheels, and each synchronous belt wheel is connected with a synchronous stepping motor (5); the bottom plate of the powder supply box (2) comprises a powder box upper plate (8) and a powder box lower plate (9), a lead screw (10) penetrates through the powder box lower plate (9) and is fixedly connected with the powder box upper plate (8), the lead screw (10) is in threaded connection with the powder box lower plate (9), a step motor (11) is lifted to output an output shaft of the lead screw (10), the powder box upper plate (8) is in sliding connection with a powder box wall (12), and the powder box lower plate (9) is fixedly connected with the powder box wall (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120737281.4U CN214605914U (en) | 2021-04-12 | 2021-04-12 | Powder supply mechanism used in selective laser sintering forming device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120737281.4U CN214605914U (en) | 2021-04-12 | 2021-04-12 | Powder supply mechanism used in selective laser sintering forming device |
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| CN214605914U true CN214605914U (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120737281.4U Active CN214605914U (en) | 2021-04-12 | 2021-04-12 | Powder supply mechanism used in selective laser sintering forming device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643711A (en) * | 2022-03-11 | 2022-06-21 | 湖北第二师范学院 | Desktop level mixes supplies non-metallic powder 3D printer of powder formula |
-
2021
- 2021-04-12 CN CN202120737281.4U patent/CN214605914U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643711A (en) * | 2022-03-11 | 2022-06-21 | 湖北第二师范学院 | Desktop level mixes supplies non-metallic powder 3D printer of powder formula |
| CN114643711B (en) * | 2022-03-11 | 2024-04-02 | 湖北第二师范学院 | Desktop-level mixed powder-supply type nonmetal powder 3D printer |
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