CN111974994B - Intelligent quantitative powder laying device and method for designated area - Google Patents
Intelligent quantitative powder laying device and method for designated area Download PDFInfo
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- CN111974994B CN111974994B CN202010520208.1A CN202010520208A CN111974994B CN 111974994 B CN111974994 B CN 111974994B CN 202010520208 A CN202010520208 A CN 202010520208A CN 111974994 B CN111974994 B CN 111974994B
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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
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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
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Abstract
The invention relates to the technical field of additive manufacturing, in particular to a quantitative powder paving device and a quantitative powder paving method for an intelligent designated area, wherein the device comprises a powder scraping module and a powder falling module, a scraper is arranged between a scraper frame and a scraper pressing plate, the scraper frame is connected with a scraper base plate, the scraper base plate is connected with a linear motion module, a powder falling roller is connected with the inner wall of a flange bearing, a baffle control shaft is connected with the inner wall of a common deep groove ball bearing, a flow adjusting baffle I is inserted into a groove in front of a powder supply bin, and the flow adjusting baffle I is connected with the powder supply bin; the SLM or SLS equipment adopting the device can reduce the volume of the powder collecting cylinder, so that the whole occupied area of the forming device is reduced.
Description
Technical Field
The invention relates to the technical field of additive manufacturing, in particular to an intelligent quantitative powder laying device and method for an appointed area.
Technical Field
When the SLM technology is adopted for forming, in the currently adopted process, the powder spreading amount of each layer is estimated by a master of operating equipment, and the density of the powder after the powder becomes an entity is greater than the loose density of the powder, so that different areas of the second layer need different amounts of powder after the first layer is formed, and more powder is usually selected to be spread to ensure the precision of a formed part. And large particles generated in the forming process inevitably enter the powder receiving bin, so that the workload of powder recovery is increased.
Although some existing SLM equipment is provided with a powder recovery system, the price of the existing SLM equipment is too high, the SLM equipment cannot be born by organizations such as medium-sized and small enterprises and colleges, the old SLM equipment entering the market in the early years is not provided with the powder recovery system, and the powder screening time occupies a large part of the time for forming by adopting the SLM technology; the metal powder used for the SLM technology forming is usually only tens of microns in diameter, and can permeate into the blood of human body through the skin, especially when sieving powder, the metal powder is easier to enter the body of the person sieving powder, and causes serious damage to the health of the person sieving powder.
Disclosure of Invention
Aiming at the problems, the invention provides the device and the method for quantitatively paving the powder in the intelligently designated area, which can be used for calculating that each layer can be paved with different amounts of powder in different areas through an algorithm, and can greatly reduce the workload of powder recovery.
In order to realize the purpose, the invention adopts the following technical scheme:
an intelligent quantitative powder spreading device for an appointed area comprises a powder scraping module and a powder falling module;
the powder scraping module comprises a scraper, a scraper pressing plate, a scraper frame, a scraper substrate and a linear motion module; the scraper is arranged between the scraper frame and the scraper pressing plate, and the scraper frame is connected with the scraper pressing plate through a screw; the scraper frame is connected with the scraper substrate, and the scraper substrate is connected with the linear motion module and driven by the motor to move in two directions;
the transmission parts are all designed with sealing covers.
The powder falling module comprises a powder supply bin, a powder falling roller, a flow regulating baffle, a baffle control shaft, a spring, a flange bearing, a sleeve, a common deep groove ball bearing, a synchronous belt wheel, a synchronous belt, a baffle control shaft support, a high-precision motor and a controller; the powder supply bin is connected with the scraper substrate through a screw;
the powder falling roller is connected with the inner wall of a flange bearing, the flange bearing is arranged in stepped holes at two sides of the powder supply bin, the sleeve is fixed at the left end of the powder falling roller through base rice, and the synchronous pulley III is fixed at the right end of the powder falling roller through the base rice; a second synchronous belt wheel is fixed on a second high-precision motor through a base belt, and the second synchronous belt wheel and a third synchronous belt wheel are driven through a second synchronous belt; the vibration-damping rubber pad is adhered to the scraper base plate through glue, the high-precision motor II is installed on the scraper base plate through screws, and the vibration-damping rubber pad is clamped between the high-precision motor I and the scraper base plate.
The baffle control shaft is connected with the inner wall of a common deep groove ball bearing, the common deep groove ball bearing is arranged in a hole in a baffle control shaft support, a synchronous pulley IV is fixed on the baffle control shaft through a base meter, a synchronous pulley I is fixed on a high-precision motor I through the base meter, and the synchronous pulley IV is connected with the synchronous pulley I through a synchronous belt I;
the first flow regulating baffle is inserted into a groove in front of the powder supply bin, a boss on the lower surface is contacted with a boss on the baffle control shaft, and the first flow regulating baffle is connected with the powder supply bin through a spring; the connection mode of the flow regulating baffles II and III is the same as that of the flow regulating baffle I.
One end of the baffle control shaft is carved with a small groove, the heights of the baffle control shaft are respectively 0.6 mm, 0.9 mm, 1.3 mm, 1.9 mm and 2.7 mm, and three groups of bosses on the shaft are designed by adopting a control variable method; the controller controls the starting time, the running time and the rotating direction of the baffle control shaft driving motor.
A pressure sensor is arranged in the powder supply bin; the powder supply bin is divided into 6 areas by 5 partition boards, wherein the 6 areas comprise 3 powder storage areas and 3 powder supply areas; but the volumes of 3 powder storage areas and 3 powder supply areas are different, the volume of the area close to the air blowing port of the SLM equipment is the largest, the volume of the area close to the air inlet of the SLM equipment is the smallest, the volume of the middle area is in the middle, and the position of the powder outlet of the powder supply area is lower than that of the left side of the powder supply bin.
The powder falling roller is formed by 3D printing through filamentous PLA or ABS and is in a cup-shaped groove shape.
The flow control baffle bottom surface is 3 ~ 5 degrees with the contained angle that supplies the inside bottom surface in powder storehouse.
The flow regulation baffle, the baffle control shaft and the powder supply bin are formed by adopting an SLM (selective laser melting) technology, the flow regulation baffle and the baffle control shaft are made of 40CrNiMoA and comprise the following components: carbon C: 0.37 to 0.44, Si: 0.17-0.37, Mn: 0.50-0.80, S: allowable residual content is less than or equal to 0.025, phosphorus P: allowable residual content is less than or equal to 0.025, chromium Cr: 0.60 to 0.90, Ni: 1.25 to 1.65, Cu: allowable residual content is less than or equal to 0.25, molybdenum Mo: 0.15-0.25, and improves the wear resistance, strength and hardness.
An intelligent quantitative powder paving method for an appointed area comprises the following steps:
s1: establishing a three-dimensional model by using three-dimensional modeling software, slicing the three-dimensional model by using slicing software, and sending a file to SLM equipment by using 3D printer control software;
s2: resetting the baffle control shaft to enable the small groove on the baffle control shaft to return to the position of the baffle control shaft during initial installation;
s3: the controller analyzes the laser scanning path of the next layer of the SLM equipment system, and screens out the maximum X-axis coordinate and the minimum X-axis coordinate in the scanning path of the next layer;
S4: driving a high-precision motor to rotate to enable a baffle control shaft to rotate to a position meeting the thickness of a powder spreading layer set in slicing software, enabling a powder falling module to start to move a powder supplying bin, enabling a powder falling roller to start to rotate to bring powder from a powder storage area of the powder supplying bin to a powder supplying area, enabling the powder supplying bin to start to leak powder, and enabling powder flow rates of three areas of the powder supplying bin to be the same;
s5: when the powder feeding bin of the powder dropping module reaches the maximum X-axis coordinate position in S3, the baffle control shaft simultaneously rotates to the position meeting the powder amount required by the current position, and after analysis by the controller, if the laser scanning area is completely within the range of the flow adjusting baffle III, the baffle control shaft rotates by 35 degrees; if the laser scanning area is completely within the range of the flow adjusting baffle III and the flow adjusting baffle II, the angle which needs to be rotated by the baffle control shaft is 15 degrees; when the powder feeding bin of the powder dropping module reaches the minimum X-axis coordinate in S3, the control shaft is restored to the position in S4.
S6: the calculation method of the N value in S5 is:
s7: when the back surface of the scraper substrate reaches the leftmost end of the forming bin, the powder dropping roller stops rotating, the baffle control shaft resets, the powder supply bin stops leaking powder, and the powder dropping bin starts to move reversely and returns to the initial position;
S8: repeating the steps S2-S7 until the whole part is formed.
Compared with the prior art, the invention has the following advantages:
(1) the powder supply bin is convenient to mount and dismount, and powder is convenient to clean; (2) the device can quantitatively lay different amounts of powder in different specified rectangular areas, solves the problem that the powder laying amount of each layer is not accurately estimated manually in the traditional selective laser melting process, reduces pollution and waste of the powder, reduces workload during powder recovery, and reduces damage to the health of a powder sieving person in the powder sieving process; (3) the SLM or SLS equipment adopting the device can reduce the volume of the powder collecting cylinder, so that the whole occupied area of the forming device is reduced.
Drawings
FIG. 1 is a perspective view of the apparatus;
FIG. 2 is a cross-sectional view of the apparatus;
FIG. 3 is a schematic perspective view of a doctor blade module;
FIG. 4 is a schematic perspective view of a powder dropping module;
FIG. 5 is a front view of a doffing roller;
FIG. 6 is a perspective view of the damper control shaft;
1. a linear motion module; 2. a scraper substrate; 3. a high-precision motor I; 4. a synchronous belt wheel I; 5. a first synchronous belt; 6. a shock-absorbing rubber pad; 7. a second high-precision motor; 8. a second synchronous belt wheel; 9. a second synchronous belt; 10. a doctor holder; 11. a scraper press plate; 12. a powder falling roller; 13. a third synchronous belt wheel; 14. a powder supply bin; 15. a baffle control shaft support; 16. a common deep groove ball bearing; 17. a synchronous belt wheel IV; 18. a spring; 19. a first flow regulating baffle; 20. a flow regulating baffle II; 21. a flow regulating baffle III; 22. a baffle control shaft; 23. a molding bin; 24. a scraper; 25. a powder collecting bin.
Detailed Description
The invention is further described with reference to the following examples and the accompanying drawings.
An intelligent quantitative powder paving device and method for a designated area are suitable for laser selective melting (SLM) equipment or laser selective sintering (SLS) equipment adopting a moving hopper type powder paving.
Referring to fig. 1, the quantitative powder paving device for the intelligent designated area comprises a powder scraping module and a powder falling module.
As shown in fig. 3, the doctor module includes a doctor 24, a doctor holder 11, a doctor frame 10, a doctor base plate 2, and a linear motion module 1; the transmission parts are all designed with sealing covers.
The scraper 24 is arranged between the scraper frame 10 and the scraper pressing plate 11, the scraper frame 10 is connected with the scraper pressing plate 11 through screws, the scraper frame 10 is connected with the scraper substrate 2, and the scraper substrate 2 is connected with the linear motion module 1 and driven by a motor to move in two directions.
As shown in fig. 4 and fig. 1, the powder dropping module comprises a powder supply bin 14, a powder dropping roller 12, a first flow regulating baffle 19, a second flow regulating baffle 20, a third flow regulating baffle 21, a baffle control shaft 22, a spring 18, a flange bearing, a sleeve, a common deep groove ball bearing 16, a first synchronous pulley 4, a second synchronous pulley 8, a third synchronous pulley 13, a fourth synchronous pulley 17, a first synchronous belt 5, a second synchronous belt 9, a baffle control shaft support 15, a shock-absorbing rubber pad 6, a first high-precision motor 3, a second high-precision motor 7 and a controller; supply powder storehouse 14 to pass through the screw with scraper base plate 2 and link to each other, the left surface that supplies powder storehouse 14 is lower than the position that supplies powder district powder export, can avoid the powder to receive the influence of air current in the SLM equipment forming storehouse spreading the powder in-process, the part that supplies powder storehouse 14 and be connected is convenient for detach formula, when dismantling and supply powder storehouse 14, need not dismantle other parts, the work load of dismantling the part when reducing the change powder, supply the powder storehouse to control the powder volume that gets into and supply the powder district through rotating the powder roller that falls completely.
The powder falling roller 12 is connected with the inner wall of a flange bearing, the flange bearing is arranged in stepped holes at two sides of a powder supply bin 14, a sleeve is fixed at the left end of the powder falling roller 14 through base rice, and a third synchronous belt wheel 13 is fixed at the right end of the powder falling roller 12 through the base rice; the second synchronous belt wheel 8 is fixed on the second high-precision motor 7 through a base belt, and the second synchronous belt wheel 8 and the third synchronous belt wheel 13 are driven through a second synchronous belt 9; the damping rubber pad 6 is adhered to the scraper base plate 2 through glue, the high-precision motor II 7 is installed on the scraper base plate 2 through screws, and the damping rubber pad 6 is clamped between the high-precision motor I3 and the scraper base plate 2; the baffle control shaft 22 is connected with the inner wall of the common deep groove ball bearing 16, the common deep groove ball bearing 16 is arranged in a hole in the baffle control shaft support 15, the synchronous pulley four 17 is fixed on the baffle control shaft 22 through a base meter, the synchronous pulley one 4 is fixed on the high-precision motor one 3 through a base meter, and the synchronous pulley four 17 is connected with the synchronous pulley one 4 through a synchronous belt one 5; it is limited in its axial displacement in a normal deep groove ball bearing 16 by a sleeve and a synchronous pulley four 17.
As shown in fig. 5, the powder dropping roller 12 is designed to be a cup-shaped groove, powder is not easy to fall back to the surrounding powder in the rotation of the powder dropping roller, and the powder can only come out of the groove when the opening of the groove is downward, so that the powder blockage of a front powder spreading bin with small powder flow can be avoided, and the consumption of mechanical energy is greatly reduced; filamentous PLA or ABS is adopted for 3D printing forming, so that the processing time is shortened, and the processing cost is reduced.
The first flow adjusting baffle 19 is inserted into a groove in front of the powder supply bin, a boss on the lower surface is in contact with a boss on the baffle control shaft 22, the first flow adjusting baffle 19 is connected with the powder supply bin 14 through a spring, the spring ensures that the boss on the baffle control shaft is in constant contact with the boss on the first flow adjusting baffle, the boss on the flow adjusting baffle moves up and down in the sliding groove to adjust the distance between the boss and the inner bottom surface of the powder supply bin, so that the flow of powder is adjusted, and the connection mode of the second flow adjusting baffle and the third flow adjusting baffle is the same as that of the first flow adjusting baffle; as shown in fig. 6, the heights of the baffle control shafts are 0.6 mm, 0.9 mm, 1.3 mm, 1.9 mm and 2.7 mm, and the heights of the first flow regulating baffle 19, the second flow regulating baffle 20 and the third flow regulating baffle 21 are adjusted by rotating the baffle control shaft 22 by a controlled variable method, so as to further adjust the flow rate of the powder.
The controller controls the starting time, the running time and the rotating direction of the baffle control shaft 22 driving motor; the flow regulating baffle is connected with the powder supply bin through a spring so as to ensure that a boss on the flow regulating baffle can be tangent to the baffle control shaft at any time; the boss on the flow regulating baffle moves up and down in the chute to regulate the distance from the inner bottom surface of the powder supply bin 14, so as to regulate the flow of the powder; the bottom surface of the flow regulating baffle and the bottom surface inside the powder supply bin form an included angle of 3-5 degrees.
The flow regulation baffle, the baffle control shaft and the powder supply bin are formed by adopting an SLM technology, the flow regulation baffle and the baffle control shaft are made of 40CrNiMoA, and the flow regulation baffle and the baffle control shaft are made of carbon C: 0.37 to 0.44, Si: 0.17-0.37, Mn: 0.50-0.80, S: allowable residual content is less than or equal to 0.025, phosphorus P: allowable residual content is less than or equal to 0.025, chromium Cr: 0.60 to 0.90, Ni: 1.25 to 1.65, Cu: allowable residual content is less than or equal to 0.25, molybdenum Mo: 0.15-0.25, and improves the wear resistance, strength and hardness.
A pressure sensor is arranged in the powder supply bin 14, when the powder in the powder supply bin is not enough to process the next layer, the pressure sensing system gives an alarm, and the powder supply bin moves to the powder supply port to add the powder, so that the problem that the powder is not enough when the next layer of the formed part is formed, and the whole part is failed to process is avoided; the powder supply bin is divided into 6 areas by 5 partition boards, wherein the 6 areas comprise 3 powder storage areas and 3 powder supply areas; but 3 store up the volume inequality in powder district, 3 confession powder districts, the volume of the region that is close to SLM equipment blowing mouth is the biggest, and the volume of the region that is close to SLM equipment air intake is the minimum, and the volume of middle zone is central, can avoid the different influence of powder flow between three regions, and the flow of the accurate control of every regional powder of being convenient for improves the stability of device.
An intelligent quantitative powder paving method for a designated area comprises the following steps:
s1: establishing a three-dimensional model by using three-dimensional modeling software, slicing the three-dimensional model by using slicing software, and sending a file to SLM (selective laser melting) equipment by using 3D printer control software;
s2: resetting the damper control shaft 22 to return the upper slot thereof to the position at the time of initial installation;
s3: the controller analyzes the laser scanning path of the next layer of the SLM equipment system, and screens out the maximum X-axis coordinate and the minimum X-axis coordinate in the scanning path of the next layer;
s4: driving a high-precision motor I3 to rotate, so that a baffle control shaft 22 rotates to a position meeting the thickness of the powder spreading layer set in slicing software; assuming that the powder spreading thickness is 30 micrometers, the rotating angle of the baffle control shaft 22 is 50 degrees, the powder feeding bin 14 of the powder dropping module starts to move, the powder dropping roller 12 starts to rotate, powder is brought into the powder feeding area from the powder storage area of the powder feeding bin 14, the powder feeding bin 14 starts to leak powder, and the powder flow rates of three areas of the powder feeding bin 14 are the same;
s5: when the powder spreading module reaches the maximum X-axis coordinate in S3, the baffle control shaft 22 is simultaneously rotated to a position meeting the powder amount required by the current position; after the analysis of the controller, if the laser scanning area is completely within the range of the third flow adjusting baffle 21, the control shaft of the baffle rotates by 35 degrees; if the laser scanning area is completely within the range of the third flow regulating baffle 21 and the second flow regulating baffle 20, the angle that the baffle control shaft 22 needs to rotate at this time is 15 degrees (at this time, the powder amount leaked from the powder supply areas corresponding to the third flow regulating baffle and the second flow regulating baffle is N times of the previous powder amount, and the N value is 1.5); when the powder spreading module reaches the minimum X-axis coordinate in S3, the control shaft is restored to the position in S4;
S6: the calculation method of the N value in S5 is:
s7: when the back surface of the scraper substrate reaches the leftmost end of the forming bin 23, the powder dropping roller 12 stops rotating, the baffle control shaft 22 resets to stop powder leakage of the powder bin 14, and the powder dropping bin starts to move reversely and returns to the initial position;
s8: and repeating the steps S2-S7 until the whole part is formed.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (3)
1. An intelligent quantitative powder paving device for an appointed area is characterized by comprising a powder scraping module and a powder falling module;
the powder scraping module comprises a scraper, a scraper pressing plate, a scraper frame, a scraper substrate and a linear motion module; the scraper is arranged between the scraper frame and the scraper pressing plate, and the scraper frame is connected with the scraper pressing plate through a screw; the scraper frame is connected with the scraper substrate, and the scraper substrate is connected with the linear motion module and driven by the motor to move in two directions;
The powder falling module comprises a powder supply bin, a powder falling roller, a flow regulating baffle, a baffle control shaft, a spring, a flange bearing, a sleeve, a common deep groove ball bearing, a synchronous belt wheel, a synchronous belt, a baffle control shaft support, a high-precision motor and a controller; the powder feeding device comprises a powder feeding bin, a powder discharging bin, a powder adjusting baffle, a powder feeding roller, a powder adjusting baffle I, a powder adjusting baffle II and a powder adjusting baffle III, wherein the powder feeding bin is provided with a powder feeding roller, the powder feeding roller is provided with a powder feeding roller matching plate, the powder feeding roller matching plate is provided with a groove, the powder feeding roller matching plate is provided with a horizontal plate and a vertical plate, the vertical plate is matched with the powder feeding roller, the horizontal plate is provided with a groove at the left side of the vertical plate, and the flow adjusting baffle I, the flow adjusting baffle II and the flow adjusting baffle III are inserted into the groove; the synchronous belt comprises a first synchronous belt wheel, a second synchronous belt wheel, a third synchronous belt wheel and a fourth synchronous belt wheel, the synchronous belt comprises a first synchronous belt and a second synchronous belt, and the high-precision motor comprises a first high-precision motor and a second high-precision motor; the powder supply bin is connected with the scraper substrate through a screw; the powder falling roller is connected with the inner wall of a flange bearing, the flange bearing is arranged in stepped holes at two sides of the powder supply bin, the sleeve is fixed at the left end of the powder falling roller through base rice, and the synchronous pulley III is fixed at the right end of the powder falling roller through the base rice; the synchronous pulley I is fixed on the high-precision motor I through a base meter, the synchronous pulley II is fixed on the high-precision motor II through the base meter, the synchronous pulley IV is fixed on the baffle control shaft through the base meter, and the synchronous pulley II and the synchronous pulley III are driven through the synchronous pulley II; the vibration-damping rubber pad is adhered to the scraper base plate through glue, the high-precision motor II is arranged on the scraper base plate through a screw, and the vibration-damping rubber pad is clamped between the high-precision motor I and the scraper base plate; the baffle control shaft is connected with the inner wall of a common deep groove ball bearing, the common deep groove ball bearing is arranged in a hole in a baffle control shaft support, and a synchronous pulley IV is connected with a synchronous pulley I through a synchronous belt I;
Bosses on the lower surfaces of the first flow regulating baffle, the second flow regulating baffle and the third flow regulating baffle are in contact with bosses on the baffle control shaft, the bosses on the baffle control shaft are ensured to be tangent and in contact with bosses on the first flow regulating baffle all the time by springs connected with the powder supply bin through the first flow regulating baffle, the bosses on the flow regulating baffle drive the bosses in the grooves to move up and down to regulate the distance from the inner bottom surface of the powder supply bin, so that the flow of powder is regulated, the connection mode of the second flow regulating baffle and the third flow regulating baffle is the same as that of the first flow regulating baffle, and the bottom of the powder supply bin is arranged in an inclined plane with the lower left and the higher right; the distance between the axial outer surface of the boss of the baffle control shaft and the surface of the baffle control shaft is unequal;
the controller controls the starting time, the running time and the rotating direction of the baffle control shaft driving motor;
a pressure sensor is arranged in the powder supply bin; the powder supply bin is divided into 6 areas by 5 partition boards, wherein the 6 areas comprise 3 powder storage areas and 3 powder supply areas; but the volumes of 3 powder storage areas and 3 powder supply areas are different, the volume of the area close to the air blowing port of the SLM equipment is the largest, the volume of the area close to the air inlet of the SLM equipment is the smallest, the volume of the middle area is in the middle, and the position of the powder outlet of the powder supply area is lower than that of the left side of the powder supply bin.
2. The quantitative powder spreading device for the intelligent designated area as claimed in claim 1, wherein the powder dropping roller is formed by 3D printing by adopting filament PLA or ABS and is in the shape of a cup-shaped groove.
3. The powder device is characterized in that the included angle between the bottom surface of the flow adjusting baffle and the bottom surface of the powder supply bin is 3-5 degrees.
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| CN112676576A (en) * | 2020-12-21 | 2021-04-20 | 中北大学 | SLM forming method of chemical gradient Cr-Fe-Ni component alloy |
| CN116213756A (en) * | 2023-01-03 | 2023-06-06 | 中国航空制造技术研究院 | Method and device for paving powder in flexible area of selective laser melting |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001014126A1 (en) * | 1999-08-20 | 2001-03-01 | Eos Gmbh Electro Optical Systems | Device and method for generative production of a three-dimensional object |
| CN2767104Y (en) * | 2005-03-03 | 2006-03-29 | 同济大学 | Quick forming automatic powder-spreading device |
| CN1939707A (en) * | 2005-09-30 | 2007-04-04 | 3D系统公司 | Rapid prototyping and manufacturing system and method |
| CN201231215Y (en) * | 2008-07-23 | 2009-05-06 | 合肥波林新材料有限公司 | Powder layering device for bimetal composite material of single-block operation |
| CN101885062A (en) * | 2010-07-28 | 2010-11-17 | 武汉滨湖机电技术产业有限公司 | Rapid shaping automatic powder feeding and spreading device |
| CA2914769A1 (en) * | 2013-08-09 | 2015-02-12 | Xtrutech Ltd. | A method of compaction of a powder and a roller compaction device |
| CN108394094A (en) * | 2018-04-18 | 2018-08-14 | 浙江工业职业技术学院 | A kind of SLS rapid shapings double roller power spreading device |
| CN108465783A (en) * | 2018-06-28 | 2018-08-31 | 四川大学 | A kind of two-way sanding gear of molding sand 3D printing |
| CN109703014A (en) * | 2019-02-27 | 2019-05-03 | 共享智能铸造产业创新中心有限公司 | A kind of double suspension power spreading devices and its powdering method applied to 3D printer |
| CN111014676A (en) * | 2019-12-31 | 2020-04-17 | 西安赛隆金属材料有限责任公司 | Powder feeding device |
| CN111231317A (en) * | 2020-01-21 | 2020-06-05 | 武汉易制科技有限公司 | Powder paving device of 3D printer |
-
2020
- 2020-06-09 CN CN202010520208.1A patent/CN111974994B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001014126A1 (en) * | 1999-08-20 | 2001-03-01 | Eos Gmbh Electro Optical Systems | Device and method for generative production of a three-dimensional object |
| CN2767104Y (en) * | 2005-03-03 | 2006-03-29 | 同济大学 | Quick forming automatic powder-spreading device |
| CN1939707A (en) * | 2005-09-30 | 2007-04-04 | 3D系统公司 | Rapid prototyping and manufacturing system and method |
| CN201231215Y (en) * | 2008-07-23 | 2009-05-06 | 合肥波林新材料有限公司 | Powder layering device for bimetal composite material of single-block operation |
| CN101885062A (en) * | 2010-07-28 | 2010-11-17 | 武汉滨湖机电技术产业有限公司 | Rapid shaping automatic powder feeding and spreading device |
| CA2914769A1 (en) * | 2013-08-09 | 2015-02-12 | Xtrutech Ltd. | A method of compaction of a powder and a roller compaction device |
| CN108394094A (en) * | 2018-04-18 | 2018-08-14 | 浙江工业职业技术学院 | A kind of SLS rapid shapings double roller power spreading device |
| CN108465783A (en) * | 2018-06-28 | 2018-08-31 | 四川大学 | A kind of two-way sanding gear of molding sand 3D printing |
| CN109703014A (en) * | 2019-02-27 | 2019-05-03 | 共享智能铸造产业创新中心有限公司 | A kind of double suspension power spreading devices and its powdering method applied to 3D printer |
| CN111014676A (en) * | 2019-12-31 | 2020-04-17 | 西安赛隆金属材料有限责任公司 | Powder feeding device |
| CN111231317A (en) * | 2020-01-21 | 2020-06-05 | 武汉易制科技有限公司 | Powder paving device of 3D printer |
Non-Patent Citations (1)
| Title |
|---|
| 基于数字微喷的金属粉末三维打印实现方法研究;高宇等;《南京师范大学学报(工程技术版)》;20170920(第03期);全文 * |
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