CN117862513A - Integrated preparation device and preparation method for 3D printing metal powder - Google Patents
Integrated preparation device and preparation method for 3D printing metal powder Download PDFInfo
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- CN117862513A CN117862513A CN202410281841.8A CN202410281841A CN117862513A CN 117862513 A CN117862513 A CN 117862513A CN 202410281841 A CN202410281841 A CN 202410281841A CN 117862513 A CN117862513 A CN 117862513A
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- 239000002184 metal Substances 0.000 title claims abstract description 105
- 239000000843 powder Substances 0.000 title claims abstract description 75
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
- 238000010146 3D printing Methods 0.000 title claims abstract description 17
- 238000003723 Smelting Methods 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 11
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 11
- 241001330002 Bambuseae Species 0.000 claims abstract description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 11
- 239000011425 bamboo Substances 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 14
- 238000007790 scraping Methods 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 2
- 238000000889 atomisation Methods 0.000 abstract description 8
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000005192 partition Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011960 computer-aided design Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000009689 gas atomisation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The invention discloses an integrated preparation device and a preparation method of 3D printing metal powder, which belong to the field of preparation of 3D printing metal powder and comprise an L-shaped support, wherein an atomization cylinder is fixedly connected to the upper half part of the right side surface of the vertical part of the support, a smelting furnace is fixedly connected to the upper part of the atomization cylinder, and a first telescopic rod and a second telescopic rod are fixedly connected to the outer side surface of the atomization cylinder close to the upper part in an annular equidistant manner; the upper end of the first telescopic rod is fixedly connected with a furnace cover, and the lower end surface of the furnace cover is close to the central position and is fixedly connected with two electrode bars at equal intervals in an annular mode. The device is through setting up the blade on the jib for metal liquid can cause the impact to the blade when contacting the blade, thereby drive the blade rotation, and then drive the jib rotation, make the scraper blade follow the jib synchronous rotation, can scrape the attached metal powder on the atomizing section of thick bamboo inner wall through the scraper blade, avoid metal powder to form on the atomizing section of thick bamboo inner wall and pile up, improve metal powder's output.
Description
Technical Field
The invention relates to the field of 3D printing metal powder preparation, in particular to a 3D printing metal powder integrated preparation device and a preparation method.
Background
The 3D printing technology is a rapid manufacturing technology that converts a digital model into a physical model through Computer Aided Design (CAD) and Computer Aided Manufacturing (CAM) technologies. 3D printing techniques can produce articles of various shapes, including metallic articles. In 3D printing of metal articles, metal powders are required.
At present, the preparation of spherical metal powder mainly adopts a crucible smelting gas atomization technology and a rotating electrode induction smelting gas atomization technology, but after the powder is successfully prepared, the particle sizes of the metal powder are different under the influence of the preparation precision, so that the collected metal powder is inconvenient to use.
Through retrieving, grant chinese patent with publication number CN211887906U, disclosed a fine metal powder preparation device, provided a technical scheme, the metal powder that will prepare through the atomizing tower sieves according to the granule size, obtains the metal powder of different granule, is favorable to three kinds of different metal powder of granule to screen simultaneously.
Although the metal powder of different particles can be obtained through screening in the above-mentioned patent, however, the in-process that metal liquid atomizes into powder in the atomizing tower, it is unavoidable that some powder can diffuse to the inner wall of atomizing tower, and as time goes by, because the atomizing tower inner wall lacks the scraping, metal powder can gradually form and pile up on the atomizing tower inner wall, not only influences the whereabouts of follow-up powder, also causes the output reduction of metal powder.
Therefore, a 3D printing metal powder integrated preparation device and a preparation method are provided.
Disclosure of Invention
The invention aims to provide a 3D printing metal powder integrated preparation device and a preparation method, which are used for solving the problems that the metal powder gradually forms accumulation on the inner wall of an atomization tower due to the lack of scraping on the inner wall of the atomization tower, so that the falling of the follow-up powder is affected and the yield of the metal powder is reduced.
In order to solve the problems, the invention adopts the following technical scheme.
The utility model provides a metal powder integration preparation facilities is printed to 3D, includes the support of L type structure, the right side upper half of the vertical part of support is fixedly connected with atomizing section of thick bamboo, atomizing section of thick bamboo top fixedly connected with smelting furnace, atomizing section of thick bamboo lateral surface is close to upper position annular equidistance fixedly connected with a first telescopic link and a second telescopic link;
the upper end of the first telescopic rod is fixedly connected with a furnace cover, two electrode rods are fixedly connected to the lower end face of the furnace cover close to the central position in an annular equidistant manner, a lower end discharge pipe of the smelting furnace extends into the atomizing cylinder, a suspender is arranged at the central position inside the smelting furnace, and a ferrule is fixedly sleeved on the annular outer side face of the suspender close to the upper position of the discharge pipe of the smelting furnace;
the upper end of the second telescopic rod is fixedly connected with a hanging plate, and the upper end of the hanging rod penetrates through the furnace cover and is rotationally connected with the hanging plate through a bearing;
the lower end of the suspension rod extends to the central position inside the atomizing cylinder, a plurality of blades are fixedly connected to the annular outer side surface of the suspension rod close to the lower position at equal intervals in an annular shape, one side of the blades, facing the discharge pipe of the smelting furnace, is in a concave shape, the bottom of blade is fixedly connected with the buffer board jointly, annular equidistance fixedly connected with a plurality of baffle on the jib annular lateral surface of blade top position, the scraper blade of support fixedly connected with type structure is passed through to the hanger plate bottom.
Further, the annular inner wall of the atomizing cylinder is fixedly connected with an air pipe at a position close to the upper position, and a plurality of spray heads are communicated with the air pipe at equal intervals in an annular mode.
Further, be close to fixedly connected with grinds the case on the support of discharge gate below position of atomizing section of thick bamboo, grind the incasement portion and rotate through the roller and be connected with two grinding rollers, grind case leading flank and be close to right side fixedly connected with motor, the output shaft of motor and the roller fixed connection of right side grinding roller, two the fixed cover of front side roller of grinding roller is equipped with master gear and pinion respectively, and master gear and pinion meshing.
Further, roller tip of both sides around the pinion is fixedly connected with carousel respectively, two one side that the carousel kept away from each other is close to the edge position and all rotates and be connected with the crank, two the equal fixedly connected with connecting rod of one end that the carousel was kept away from to the crank, two all the slip cap is equipped with the pole cover on the connecting rod, and pole cover passes through fixed plate fixed connection with the grinding case respectively.
Further, be equipped with right-hand member downward sloping guide plate below the grinding case discharge gate, the guide plate right-hand member rotates the grafting and has a horizontal pole, the front and back both ends of horizontal pole rotate the cover and are equipped with the extension board, and the bottom fixed connection of extension board lower extreme and support, symmetrical fixedly connected with two branches around the guide plate left end, two the lower extreme of connecting rod rotates the cover respectively and establishes on the branch of corresponding position.
The application method of the 3D printing metal powder integrated preparation device comprises the following steps:
s1: conveying the metal raw materials into a smelting furnace, starting a first telescopic rod to drive a furnace cover to move downwards to close the furnace cover, then powering on an electrode rod, and melting the metal raw materials by using high temperature generated by an electrode arc;
s2: after all the metal raw materials in the smelting furnace are melted, a second telescopic rod is started to drive a suspender to move upwards, so that a ferrule leaves the upper end position of a discharging pipe of the smelting furnace, metal liquid directly enters an atomizing cylinder through the discharging pipe of the smelting furnace, and a gas pipe in the atomizing cylinder sprays high-pressure gas, so that the metal liquid is atomized into powder;
s3: the blade is impacted in the process that the metal liquid flows into the atomizing cylinder, so that the blade is driven to rotate, the suspender is driven to rotate, the scraping plate can synchronously rotate, the inner wall of the atomizing cylinder is scraped by the scraping plate, and atomized metal powder is prevented from being attached to the inner wall of the atomizing cylinder;
s4: the atomized metal powder falls into the grinding box, and under the grinding action of the two grinding rollers, the precision of the metal powder is improved.
Compared with the prior art, the invention has the beneficial effects that:
1. this scheme is through setting up the blade on the jib for metal liquid can cause the impact to the blade when contacting the blade, thereby drive the blade rotation, and then drive the jib rotation, make the scraper blade follow the jib synchronous rotation, can scrape the attached metal powder on the atomizing section of thick bamboo inner wall through the scraper blade, avoid metal powder to form on the atomizing section of thick bamboo inner wall and pile up, improve metal powder's output.
2. According to the scheme, the smelting furnace and the atomizing cylinder are combined together, so that molten metal in the smelting furnace can be directly discharged into the atomizing cylinder to be contacted with high-pressure gas to form metal powder, the processing steps are reduced, the processing mode is simpler and more convenient, the working efficiency is improved, and the situation that safety accidents are caused by dumping of high-temperature metal in the transferring process is avoided.
3. According to the scheme, the grinding box is arranged below the atomizing barrel, so that the metal powder can be subjected to grinding treatment, and the precision of the metal powder is improved.
Drawings
FIG. 1 is a schematic perspective view of the first embodiment of the present invention;
FIG. 2 is a schematic diagram of a second perspective structure of the present invention;
FIG. 3 is a schematic perspective view of a third embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of FIG. 1;
FIG. 5 is a schematic cross-sectional view of FIG. 2;
FIG. 6 is an enlarged schematic view of FIG. 1 at A;
FIG. 7 is an enlarged schematic view of FIG. 4 at B;
fig. 8 is an enlarged schematic view at C in fig. 5.
The reference numerals in the figures illustrate:
1. a support; 11. a support plate; 12. a cross bar; 13. a deflector; 2. a smelting furnace; 21. a first telescopic rod; 22. a furnace cover; 23. an electrode rod; 24. a second telescopic rod; 25. a hanger plate; 3. an atomizing cylinder; 31. a boom; 32. a ferrule; 33. a partition plate; 34. a blade; 35. a scraper; 36. an air pipe; 37. a buffer plate; 4. a grinding box; 41. a grinding roller; 42. a motor; 43. a main gear; 44. a pinion gear; 5. a turntable; 51. a crank; 52. a rod sleeve; 53. a connecting rod; 54. a supporting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Referring to fig. 1 to 7, a 3D printing metal powder integrated preparation device and a preparation method thereof, the device comprises an L-shaped support 1, wherein an atomization tube 3 is fixedly connected to the upper half part of the right side surface of the vertical part of the support 1, a smelting furnace 2 is fixedly connected to the upper part of the atomization tube 3, and a first telescopic rod 21 and a second telescopic rod 24 are fixedly connected to the outer side surface of the atomization tube 3 close to the upper part in an annular equidistant manner;
the upper end of the first telescopic rod 21 is fixedly connected with a furnace cover 22, two electrode rods 23 are fixedly connected to the lower end surface of the furnace cover 22 at equal intervals near the central position in a ring shape, a lower end discharge pipe of the smelting furnace 2 extends into the atomizing cylinder 3, a hanging rod 31 is arranged at the central position inside the smelting furnace 2, and a ferrule 32 is fixedly sleeved above the annular outer side surface of the hanging rod 31 near the upper part of the discharge pipe of the smelting furnace 2;
the upper end of the second telescopic rod 24 is fixedly connected with a hanging plate 25, and the upper end of the hanging rod 31 penetrates through the furnace cover 22 and is rotatably connected with the hanging plate 25 through a bearing;
the lower extreme of jib 31 extends to the inside central point of atomizing section of thick bamboo 3, the annular lateral surface of jib 31 is close to a plurality of blade 34 of annular equidistance fixedly connected with in lower position, and blade 34 is sunken form towards one side of smelting furnace 2 discharging pipe, the bottom of blade 34 is fixedly connected with buffer plate 37 jointly, annular equidistance fixedly connected with a plurality of baffle 33 on the annular lateral surface of jib 31 of blade 34 top position, scraper blade 35 of cantilever plate 25 bottom through pillar fixedly connected with type structure.
By adopting the technical scheme, in the initial state, the pipe mouth at the upper end of the discharging pipe at the bottom of the smelting furnace 2 is blocked by the ferrule 32 on the suspender 31, the upper end of the suspender 31 exceeds the upper end face of the smelting furnace 2, so that the furnace cover 22 can slide upwards along the suspender 31 to open the furnace mouth of the smelting furnace 2, thereby facilitating the transportation of the metal raw materials into the smelting furnace, then the first telescopic rod 21 is started to drive the furnace cover 22 to slide downwards along the suspender 31 until the smelting furnace 2 is covered, then the electrode rod 23 is electrified, the lower end of the electrode rod 23 is buried in the metal raw materials for arcing, besides the heat generated by the arc between the electrode rod 23 and the metal raw materials, the metal raw materials generate considerable heat when the electric current passes through the metal raw materials, so that the metal raw materials are melted, after the metal raw materials are completely melted, the second telescopic rod 24 is started to drive the hanging plate 25 to move upwards, thereby driving the hanging rod 31 to move upwards, so that the ferrule 32 leaves the upper end pipe orifice of the discharging pipe of the smelting furnace 2, so that molten metal liquid can flow out of the smelting furnace 2, both the hanging rod 31 and the ferrule 32 are made of refractory materials, the melting in the process of heating and melting metal raw materials is avoided, the annular inner wall of the atomizing cylinder 3 is fixedly connected with the air pipe 36 at the upper position, a plurality of spray heads are annularly and equidistantly communicated on the air pipe 36, high-pressure gas is conveyed into the air pipe 36 through the high-pressure air pump in the process of flowing the metal liquid into the atomizing cylinder 3, the high-pressure gas is sprayed out at a high speed through the spray heads on the air pipe 36 and collides with the metal liquid flowing downwards, thereby crushing the metal liquid into fine particles, condensing the fine particles into solid powder, combining the smelting furnace 2 and the atomizing cylinder 3, the step of pouring the high-temperature metal liquid out of the smelting furnace 2 and transferring the high-temperature metal liquid to the atomizing barrel 3 in the prior art is omitted, so that the processing efficiency is improved, and the situation that dangerous accidents are caused by easy dumping of the high-temperature metal liquid in the transferring process is avoided. In the process that the hanging rod 31 is pulled up, the partition plate 33 and the blades 34 are lifted synchronously until the partition plate 33 enters the discharging pipe at the bottom of the smelting furnace 2, the blades 34 are moved to the upper part of the air pipe 36, the scraping plate 35 is close to the lower part of the air pipe 36, in the process that the metal liquid in the smelting furnace 2 flows downwards through the discharging pipe of the smelting furnace 2, the metal liquid is separated into a space through the partition plate 33, the whole metal liquid is separated into a plurality of fine flows, each blade 34 is impacted, one side of the blades 34 facing the discharging pipe of the smelting furnace 2 is concave, the impact effect on the blades 34 is improved, the blades 34 are easier to rotate, the hanging rod 31 is driven to rotate, the scraping plate 35 is driven to rotate, the leakage holes are evenly formed in the upper end face of the buffer plate 37, the metal liquid is dispersed after being impacted to the buffer plate 37, the contact area of the metal liquid and the high-pressure air is increased, the metal liquid can be atomized into the metal powder better, the metal powder can be separated into a plurality of fine flows around due to the influence of air flows in the process that the metal powder is formed, the metal powder is contacted with the high-pressure air, the metal powder can be scraped on the inner wall 2 due to the fact that the scraping plate is adhered to the inner wall 2, and the inner wall 2 is formed on the inner wall 2 due to the fact that the scraping plate is adhered to the inner wall 2 is more synchronously, and the metal powder is scraped on the inner wall 2, and the inner wall 2 is prevented from being adhered to the inner wall 2 due to the inner wall 2 is formed due to the fact that the scraping friction is adhered to the inner wall is in the inner wall is rotated.
As shown in fig. 1 to 7, a grinding box 4 is fixedly connected to a support 1 near the lower position of a discharge hole of an atomizing cylinder 3, two grinding rollers 41 are rotatably connected to the inside of the grinding box 4 through roller shafts, a motor 42 is fixedly connected to the front side of the grinding box 4 near the right side, an output shaft of the motor 42 is fixedly connected with the roller shafts of the grinding rollers 41 on the right side, a main gear 43 and a pinion 44 are fixedly sleeved on the front side roller shafts of the grinding rollers 41 respectively, the main gear 43 and the pinion 44 are meshed, roller shaft ends of the pinion 44 are fixedly connected with a turntable 5 respectively, two sides, far away from each other, of the turntable 5 are respectively and rotatably connected with a crank 51, one ends, far away from the turntable 5, of the two crank 51 are respectively and fixedly connected with a connecting rod 53, rod sleeves 52 are respectively and fixedly connected with the grinding box 4 through fixing plates, a guide plate 13 with the lower end of the grinding roller shafts of the grinding roller 41 inclined downward is arranged below the discharge hole of the grinding box 41, a guide plate 13 is respectively and a rotary plate 12 is respectively and fixedly connected with two guide plates 11, two guide plates are respectively and are fixedly connected with two guide plates 11 at the two ends of the front and the two ends of the guide plate 11, and the guide plates are respectively, and two guide plates are fixedly connected with two guide plates 11 are respectively, and two guide plates are fixedly connected with two guide plates 53.
By adopting the technical scheme, the metal powder formed in the atomizing cylinder 3 falls into the grinding box 4 under the action of gravity, the motor 42 drives the main gear 43 to rotate anticlockwise, so as to drive the auxiliary gear 44 to rotate clockwise, and further drive the two grinding rollers 41 to rotate in opposite directions to grind the metal powder falling between the two grinding rollers 41, the ground metal powder falls onto the guide plate 13, and as the turntable 5 is fixedly connected to the front roller shaft and the rear roller shaft of the left grinding roller 41, the two cranks 51 are driven to synchronously rotate eccentrically around the turntable 5, and further drive the two connecting rods 53 to do reciprocating rectilinear motion back and forth in the rod sleeve 52 respectively, so that the left end of the guide plate 13 continuously vibrates back and forth, because the right end of the guide plate 13 is inclined downwards, the metal powder flows rightwards along the guide plate 13, four filter screens are uniformly distributed on the bottom plate of the guide plate 13, and the lower part of each filter screen is fixedly connected with a guide groove, the mesh diameter of each filter screen is 150-500 mu m coarse powder, 44-150 mu m medium powder, 10-44 mu m fine powder and 0.5-10 mu m superfine powder in sequence from left to right, the superfine powder is smaller than 0.5 mu m, the bottom plate of the support 1 at the lower part of each guide groove is provided with a receiving groove, and the bottom plate of the support 1 at the lower part of the right end of the guide plate 13 is also provided with a receiving groove, so that the classification of the metal powder is completed in the process of rightward flowing of the metal powder.
The application method of the 3D printing metal powder integrated preparation device comprises the following steps:
s1: the metal raw material is conveyed into the smelting furnace 2, the first telescopic rod 21 is started to drive the furnace cover 22 to move downwards to close the furnace cover 22, then the electrode rod 23 is electrified, and the metal raw material is melted by the high temperature generated by the electrode arc;
s2: after all the metal raw materials in the smelting furnace 2 are melted, the second telescopic rod 24 is started to drive the hanging rod 31 to move upwards, so that the ferrule 32 is separated from the upper end position of the discharging pipe of the smelting furnace 2, metal liquid directly enters the atomizing cylinder 3 through the discharging pipe of the smelting furnace 2, and the air pipe 36 in the atomizing cylinder 3 sprays high-pressure air, so that the metal liquid is atomized into powder;
s3: the blade 34 is impacted in the process that the metal liquid flows into the atomizing barrel 3, so that the blade 34 is driven to rotate, the suspender 31 is driven to rotate, the scraping plate 35 can synchronously rotate, the inner wall of the atomizing barrel 3 is scraped by the scraping plate 35, and atomized metal powder is prevented from being attached to the inner wall of the atomizing barrel 3;
s4: the atomized metal powder falls into the grinding box 4, and the accuracy of the metal powder is improved by the grinding action of the two grinding rolls 41.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (6)
1. 3D prints metal powder integration preparation facilities, its characterized in that: the device comprises an L-shaped support (1), wherein an atomizing cylinder (3) is fixedly connected to the upper half part of the right side surface of the vertical part of the support (1), a smelting furnace (2) is fixedly connected to the upper part of the atomizing cylinder (3), and a first telescopic rod (21) and a second telescopic rod (24) are fixedly connected to the outer side surface of the atomizing cylinder (3) close to the upper part in an annular equidistant manner;
the upper end of the first telescopic rod (21) is fixedly connected with a furnace cover (22), two electrode rods (23) are fixedly connected to the lower end surface of the furnace cover (22) close to the central position in an annular equidistant manner, a lower end discharge pipe of the smelting furnace (2) extends into the atomizing cylinder (3), a suspender (31) is arranged at the central position inside the smelting furnace (2), and a ferrule (32) is fixedly sleeved on the annular outer side surface of the suspender (31) close to the upper position of the discharge pipe of the smelting furnace (2);
the upper end of the second telescopic rod (24) is fixedly connected with a hanging plate (25), and the upper end of the hanging rod (31) penetrates through the furnace cover (22) and is rotationally connected with the hanging plate (25) through a bearing;
the utility model discloses a smelting furnace (2) discharging pipe, including jib (31), scraper blade (25), jib (25) are fixed in position, jib (31) lower extreme extends to the inside central point of atomizing section of thick bamboo (3), the annular lateral surface of jib (31) is close to a plurality of blade (34) of annular equidistance fixedly connected with in lower position, and one side of blade (34) towards smelting furnace (2) discharging pipe is sunken form, the common fixedly connected with buffer board (37) in bottom of blade (34), annular equidistance fixedly connected with a plurality of baffle (33) on the annular lateral surface of jib (31) of position above blade (34), scraper blade (35) of pillar fixedly connected with type structure are passed through to the bottom of hanger plate (25).
2. The integrated 3D printing metal powder preparation device according to claim 1, wherein: the annular inner wall of the atomizing cylinder (3) is fixedly connected with an air pipe (36) near the upper position, and a plurality of spray heads are annularly and equidistantly communicated on the air pipe (36).
3. The integrated 3D printing metal powder preparation device according to claim 1, wherein: be close to fixedly connected with grinds case (4) on support (1) of discharge gate below position of atomizing section of thick bamboo (3), grind inside two grinding roller (41) of being connected with of case (4) through the roller rotation, grind case (4) leading flank and be close to right side fixedly connected with motor (42), the output shaft of motor (42) and the roller fixed connection of right side grinding roller (41), two the front side roller of grinding roller (41) is fixed the cover respectively and is equipped with master gear (43) and pinion (44), and master gear (43) and pinion (44) meshing.
4. A 3D printed metal powder integrated fabrication device according to claim 3, characterized in that: roller shaft ends of front and back both sides of pinion (44) are fixedly connected with carousel (5) respectively, two one side that carousel (5) kept away from each other is close to edge position and all rotates and be connected with crank (51), two the equal fixedly connected with connecting rod (53) of one end that carousel (5) were kept away from to crank (51), two all slip cap is equipped with pole cover (52) on connecting rod (53), and pole cover (52) are through fixed plate fixed connection respectively with grinding case (4).
5. The integrated 3D printing metal powder preparation device according to claim 4, wherein: the grinding box (4) discharge gate below is equipped with right-hand member downward sloping guide plate (13), guide plate (13) right-hand member rotates and peg graft has a horizontal pole (12), the front and back both ends of horizontal pole (12) rotate the cover and are equipped with extension board (11), and extension board (11) lower extreme and the bottom fixed connection of support (1), symmetrical fixedly connected with two branch (54) around guide plate (13) left end, two the lower extreme of connecting rod (53) rotates the cover respectively and establishes on branch (54) of corresponding position.
6. A method of use for a 3D printed metal powder integrated manufacturing apparatus as defined in any one of claims 1 to 5, characterized in that: the method comprises the following steps:
s1: conveying the metal raw materials into a smelting furnace (2), starting a first telescopic rod (21) to drive a furnace cover (22) to move downwards so as to close the furnace cover (22), then electrifying an electrode rod (23), and melting the metal raw materials by utilizing high temperature generated by an electrode arc;
s2: after all the metal raw materials in the smelting furnace (2) are melted, a second telescopic rod (24) is started to drive a hanging rod (31) to move upwards, so that a ferrule (32) leaves the upper end position of a discharging pipe of the smelting furnace (2), metal liquid directly enters an atomizing cylinder (3) through the discharging pipe of the smelting furnace (2), and a gas pipe (36) in the atomizing cylinder (3) sprays high-pressure gas to atomize the metal liquid into powder;
s3: the blade (34) is impacted in the process that the metal liquid flows into the atomizing barrel (3), so that the blade (34) is driven to rotate, the suspender (31) is driven to rotate, the scraping plate (35) can synchronously rotate, the inner wall of the atomizing barrel (3) is scraped by the scraping plate (35), and atomized metal powder is prevented from being attached to the inner wall of the atomizing barrel (3);
s4: the atomized metal powder falls into the grinding box (4), and the accuracy of the metal powder is improved under the grinding action of the two grinding rollers (41).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410281841.8A CN117862513A (en) | 2024-03-13 | 2024-03-13 | Integrated preparation device and preparation method for 3D printing metal powder |
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| CN202410281841.8A CN117862513A (en) | 2024-03-13 | 2024-03-13 | Integrated preparation device and preparation method for 3D printing metal powder |
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