CN115069974A - 3D prints metal powder vibration powder shifter with edulcoration function - Google Patents

3D prints metal powder vibration powder shifter with edulcoration function Download PDF

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Publication number
CN115069974A
CN115069974A CN202210868102.XA CN202210868102A CN115069974A CN 115069974 A CN115069974 A CN 115069974A CN 202210868102 A CN202210868102 A CN 202210868102A CN 115069974 A CN115069974 A CN 115069974A
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ring
powder
metal powder
conical
fixed mounting
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CN202210868102.XA
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赵小飞
陈露
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Jiangsu Deyou New Material Co ltd
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Jiangsu Deyou New Material Co ltd
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Priority to CN202210868102.XA priority Critical patent/CN115069974A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C5/00Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/06Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses a 3D printing metal powder vibrating screen powder machine with impurity removal function, belonging to the technical field of screen powder machines, wherein the wind power generated by a micro fan can be diffused outwards at the inner side of a conical tube through the arrangement of a conical air inlet pipe, a rotating ring and a wind deflector, the powder is blown towards the oblique lower part of the conical tube, so that the metal powder and the nonmetal powder with different qualities can be effectively distinguished, the nonmetal powder can be adsorbed by an electrostatic adsorption net when moving to the vicinity of the conical tube, the powder with different sizes can be discharged through different pipelines through the arrangement of a first hollow ring, a second hollow ring, a discharge pipe and the like, the subsequent checking work of workers is effectively reduced, the working efficiency is improved to a certain extent, and the screening hopper can be quickly overlapped and screened through the arrangement of a connecting ring, a bearing plate, a cover plate and the like, improve the sieve powder precision, effectual operating personnel's work burden that has reduced.

Description

3D prints metal powder vibration powder shifter with edulcoration function
Technical Field
The invention relates to the technical field of powder sifters, in particular to a 3D printing metal powder vibrating powder sifter with an impurity removal function.
Background
3D printing is a technology which is based on a digital model file, utilizes adhesive materials such as powdered metal or plastic and the like, constructs an object in a layer-by-layer printing mode, is a rapid forming technology, is often used for manufacturing models in the fields of mold manufacturing, industrial design and the like, and is then gradually used for directly manufacturing some products, and different objects need particles with different sizes, so that a powder screening machine is needed to screen out metal powder particles with proper sizes.
Among the prior art, the powder shifter is screening the during operation, mainly sieves out the granule of different volume sizes through the stack screening fill, and not only the dismouting is comparatively troublesome like this, increases operating personnel's work burden, and it is comparatively huge to make the equipment volume become easily moreover, increases working cost, and simultaneously, mix nonmetal granule easily in the metal powder, for example gravel, broken leaves and so on, be difficult to sieve out it, the wastrel appears easily when leading to the later stage to carry out 3D and print, and then increases working cost.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a 3D printing metal powder vibrating powder shifter with an impurity removal function, which can realize the rapid separation of metal powder and non-metal powder, accelerate the working efficiency of the powder shifter and reduce the inspection force of workers in the later period.
In order to solve the above problems, the present invention adopts the following technical solutions.
A3D printing metal powder vibrating powder sieving machine with impurity removal function comprises a hollow column, a U-shaped concave ring is fixedly installed at the upper end of the hollow column, a bottom sealing ring is fixedly installed at the lower portion of the inner surface of the hollow column, a plurality of first connecting rods are fixedly installed on the inner surface of the bottom sealing ring, a first separating ring is fixedly installed at one end, away from the bottom sealing ring, of the first connecting rods, a plurality of second connecting rods are fixedly installed on the inner surface of the first separating ring, a second separating ring is fixedly installed at one end, away from the first separating ring, of the second connecting rods, a conical pipe is fixedly installed at the upper end of the bottom sealing ring, an insulating ring is rotatably connected to the inner surface of the conical pipe, a plurality of metal rods are fixedly installed on the inner surface of the insulating ring, a rotating ring is fixedly installed at one end, away from the insulating ring, of the metal rods, a plurality of fixing rods are fixedly installed on the outer side of the lower end of the rotating ring, a wind guide plate is fixedly installed at one end, away from the rotating ring, of the fixing rods, the upper end of the rotating ring is rotatably connected with a conical air inlet pipe, the inner surface of the hollow column is provided with a micro fan communicated with the conical air inlet pipe, the upper end of the conical pipe is fixedly provided with an elastic conical hopper, the upper end of the elastic conical hopper is fixedly provided with a vibrating plate, the outer side of the vibrating plate is positioned in the inner cavity of the U-shaped concave ring, the outer side of the upper end of the vibrating plate is fixedly provided with a first screening hopper communicated with the elastic conical hopper, the outer side of the lower end of the vibrating plate is fixedly provided with an ultrasonic vibration motor, air flow generated by the micro fan is guided by the air inlet pipe, the conical air inlet pipe and the rotating ring to diffuse to the periphery, so that powder with small volume or light weight is blown outwards, and finally, the powder leaves through the first hollow ring, the second hollow ring and the discharge pipe respectively, so that metal powder and non-metal powder are separated.
Furthermore, an air inlet pipe is fixedly arranged between the upper part of the outer surface of the conical air inlet pipe and the micro fan together, a rotating shaft is fixedly arranged at the upper end of the air deflector, a plurality of fan blades are fixedly arranged between the outer surface of the rotating shaft and the inner surface of the rotating ring together, air flow enters the rotating ring through the air inlet pipe and the conical air inlet pipe to drive the fan blades to rotate, and finally the insulating ring is driven to rotate to rub with the conical pipe to generate static electricity.
Furthermore, the radius of the upper part of the air deflector is smaller than that of the lower part of the air deflector, the plurality of fixing rods are vertically connected to the outer surface of the air deflector, air flow flows downwards while flowing around, and powder is blown towards the inclined lower part of the conical tube, so that the non-metal powder is closer to the conical tube and is easier to be adsorbed by the electrostatic adsorption net.
Furthermore, the dead slot has been seted up to the internal surface of toper pipe, and the inside fixed mounting of dead slot has the electrostatic adsorption net, and the non-metallic powder wherein can be adsorbed to the electrostatic adsorption net, avoids non-metallic powder and the less metal powder of volume to drop away simultaneously, influences follow-up print work.
Furthermore, the lower end of the bottom sealing ring is fixedly provided with a first hollow ring, a second hollow ring and a discharge pipe, the first hollow ring is communicated with a gap between the bottom sealing ring and the first separating ring, the second hollow ring is communicated with a gap between the first separating ring and the second separating ring, the discharge pipe is communicated with an inner cavity of the second separating ring, metal powder and non-metal powder are separately discharged, and the metal powder and the non-metal powder are prevented from being mixed together again.
Furthermore, the upper parts of the first separating ring and the second separating ring are both arc-shaped structures, so that powder is prevented from staying at the upper ends of the first separating ring and the second separating ring, and the subsequent powder sieving work of the powder sieving machine is influenced.
Further, the inner cavity diapire fixed mounting of U type concave ring has the blotter, and the opening part internal surface fixed mounting of blotter has a plurality of elasticity telescopic rods, avoids vibration board and the repeated collision of U type concave ring to lead to damaging.
Furthermore, the end, far away from the U type concave ring, of the elastic telescopic rod is fixedly provided with an arc-shaped plate, the radian of the inner surface of the arc-shaped plate is equal to the radian of the outer surface of the U type concave ring, and abrasion of the vibration plate when the vibration plate is in collision contact with the elastic telescopic rod is reduced, so that the service life of the vibration plate is prolonged.
Furthermore, the outer surface of the first screening hopper is connected with a connecting ring in a sliding mode, the bearing ring is fixedly mounted on the inner surface of the connecting ring, the second screening hopper communicated with the first screening hopper is connected with the inner surface of the connecting ring in a sliding mode, the screening hoppers are overlapped through the connecting ring and the bearing ring, and finally the second screening hopper is sealed through the cover plate, so that the dismounting speed is accelerated, the working efficiency is improved, and the workload of operators is reduced.
Further, the upper end fixed mounting of vibration board has two screw rods, and the common sliding connection of surface of two screw rods has the apron, and the equal threaded connection of surface of two apron has the nut, comes to fight to the screening of the top through fixed apron and carries out the shutoff, avoids the vibration in-process, and the powder takes place to leak.
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, the conical air inlet pipe, the rotating ring and the air deflector are arranged on the inner side of the conical pipe, so that wind power generated by the micro fan can be diffused outwards on the inner side of the conical pipe, falling powder is blown outwards, metal powder and non-metal powder with different qualities are effectively distinguished, meanwhile, the first hollow ring, the second hollow ring and the discharge pipe are arranged on the bottom sealing ring, so that powder with different sizes can be discharged through different pipelines, the follow-up checking work of workers is effectively lightened, and the working efficiency is improved to a certain extent;
(2) the electrostatic adsorption net is arranged on the conical tube, so that the non-metal powder can be adsorbed on the electrostatic adsorption net when being blown to the vicinity of the conical tube by airflow, and the metal powder with smaller volume can leave through the first hollow ring, so that the metal powder and the non-metal powder are effectively separated, and the metal powder and the non-metal powder are prevented from being mixed together again after leaving;
(3) the fan blades are arranged on the rotating ring, so that the fan blades, the rotating ring and the insulating ring can be driven to rotate after air flow enters the rotating ring, static electricity is generated after the air flow is rubbed with the micro fan, meanwhile, the metal rod can shield an electric field, the static electricity is attached to the conical tube and the static electricity adsorption net, the static electricity is supplemented to the static electricity adsorption net, the static electricity adsorption net can continuously work, and the screening efficiency of the powder screening machine is effectively improved;
(4) the air deflector is arranged into a conical structure with a narrow upper part and a wide lower part, so that the airflow flows downwards while flowing horizontally around, and the powder is blown towards the oblique lower part of the conical tube, so that the non-metal powder is closer to the conical tube and is easier to be adsorbed by the electrostatic adsorption net;
(5) the upper parts of the first separating ring and the second separating ring are arranged into arc structures, so that powder cannot stay on the first separating ring and the second separating ring, powder residue in the powder screening machine can be effectively reduced, subsequent powder screening work is prevented from being influenced, and the work efficiency is accelerated to a certain extent;
(6) the buffering pad and the elastic telescopic rod are arranged on the U-shaped concave ring, so that the vibrating plate cannot excessively collide with the U-shaped concave ring during vibration, the vibrating plate is protected from being damaged, the service life of the vibrating plate is effectively prolonged, and the working cost is reduced to a certain extent;
(7) the second screening hopper and the bearing ring are arranged on the first screening hopper, so that the powder screening machine can be quickly superposed with different screening hoppers, the operation difficulty is reduced, the workload of operators is effectively reduced, and the working efficiency is improved to a certain extent;
(8) through set up screw rod and apron on vibration board for the apron can be fought to the sieve powder of the top and carry out the shutoff, avoids at the vibration in-process, and the powder takes place to leak, causes loss of property, through easy dismounting, the effectual work efficiency that has accelerated.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a bottom view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view of the connection structure of the air inlet pipe, the tapered air inlet pipe, the rotating ring, the metal rod and the insulating ring according to the present invention;
FIG. 5 is a schematic view of the inner structure of the rotating ring of the present invention;
FIG. 6 is a cross-sectional view of a tapered tube of the present invention;
FIG. 7 is an enlarged view taken at A of FIG. 6;
FIG. 8 is a schematic view of the connection structure of the vibrating plate, the elastic conical hopper and the first sieving hopper according to the present invention;
FIG. 9 is a schematic view of the connection structure of the connection ring and the secondary screening hopper of the present invention;
fig. 10 is an enlarged view of fig. 3 at B.
The numbering in the figures illustrates:
1. a hollow column; 11. a bottom sealing ring; 111. a first hollow ring; 1111. a first spacer ring; 112. a second hollow ring; 1121. a second divider ring; 113. a discharge pipe; 114. a first connecting rod; 115. a second connecting rod; 12. a tapered tube; 121. an empty groove; 122. an electrostatic adsorption net; 13. a micro fan; 131. an air inlet pipe; 14. an ultrasonic vibration motor; 2. a U-shaped concave ring; 21. a vibrating plate; 211. an elastic conical hopper; 212. a first screening hopper; 22. a threaded rod; 23. a cushion pad; 24. an elastic telescopic rod; 25. an arc-shaped plate; 3. a connecting ring; 31. a second screening hopper; 32. screening holes; 4. a cover plate; 5. an insulating ring; 51. a metal rod; 52. a rotating ring; 53. a conical air inlet pipe; 54. a fixing rod; 55. an air deflector; 551. a rotating shaft; 552. a fan blade.
Detailed Description
The technical solution 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 obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Please refer to fig. 1-10, a 3D printing metal powder vibrating screen powder machine with impurity removing function, including hollow column 1, the upper end fixed mounting of hollow column 1 has U-shaped concave ring 2, arbitrary vertical cross-section of U-shaped concave ring 2 is the U-shape, make things convenient for vibrating plate 21 to move in the inner chamber of U-shaped concave ring 2, the inner chamber diapire fixed mounting of U-shaped concave ring 2 has blotter 23, the internal surface fixed mounting of the opening part of blotter 23 has a plurality of elastic telescopic rods 24, avoid vibrating plate 21 and U-shaped concave ring 2 to collide repeatedly and lead to the damage, the one end fixed mounting that elastic telescopic rod 24 kept away from U-shaped concave ring 2 has arc 25, the internal surface radian of arc 25 equals the external surface radian of U-shaped concave ring 2, alleviate the wearing and tearing that take place when vibrating plate 21 and elastic telescopic rod 24 collide and contact, thereby prolong the life of vibrating plate 21.
Referring to fig. 2 to 3, a bottom sealing ring 11 is fixedly installed at the lower portion of the inner surface of the hollow column 1, a plurality of first connecting rods 114 are fixedly installed at the inner surface of the bottom sealing ring 11, a first separating ring 1111 is fixedly installed at one end of the plurality of first connecting rods 114 far away from the bottom sealing ring 11 together, a gap is reserved to facilitate separation of non-metal powder, a plurality of second connecting rods 115 are fixedly installed at the inner surface of the first separating ring 1111, a second separating ring 1121 is fixedly installed at one end of the plurality of second connecting rods 115 far away from the first separating ring 1111 together, the upper portions of the first separating ring 1111 and the second separating ring 1121 are both arc-shaped structures to prevent powder from staying at the upper ends of the first separating ring 1111 and the second separating ring 1121 to affect subsequent powder screening work, a first hollow ring 111, a second hollow ring 112 and a discharge pipe 113 are fixedly installed at the lower end of the bottom sealing ring 11, the first hollow ring 111 is communicated with the gap between the bottom sealing ring 11 and the first separating ring 1111, nonmetal powder is conveniently discharged, and the phenomenon that the nonmetal powder is mixed with metal powder again is avoided, the second hollow ring 112 is communicated with the gap between the first separating ring 1111 and the second separating ring 1121, so that the metal powder with small volume is conveniently passed through, the discharge pipe 113 is communicated with the inner cavity of the second separating ring 1121, the metal powder with large volume is difficult to be influenced by wind power, and can directly fall out through the discharge pipe 113.
Referring to fig. 6 to 7, a tapered tube 12 is fixedly mounted at the upper end of the bottom sealing ring 11, the tapered tube 12 is made of an insulating material, and is convenient to generate static electricity by rotating and rubbing with the insulating ring 5, so as to supplement the static electricity to the electrostatic adsorption net 122, so that the electrostatic adsorption net 122 can continuously work, meanwhile, the diameter of the upper part of the tapered tube 12 is smaller than that of the lower part thereof, so that the powder directly falls to the middle part of the bottom sealing ring 11, thereby enlarging the moving space of the non-metal powder, and further facilitating the separation of the non-metal powder and the metal powder, a hollow groove 121 is formed in the inner surface of the tapered tube 12, the electrostatic adsorption net 122 is fixedly mounted inside the hollow groove 121, the electrostatic adsorption net 122 can adsorb the non-metal powder therein, and the non-metal powder and the metal powder with a smaller volume are prevented from falling off at the same time, so as to influence the subsequent 3D printing work.
Referring to fig. 3-4, an insulating ring 5 is rotatably connected to an inner surface of the tapered tube 12, the insulating ring 5 rotates on the tapered tube 12 to generate friction and generate static electricity, so that the electrostatic adsorption net 122 can continuously perform adsorption work, a plurality of metal rods 51 are fixedly mounted on the inner surface of the insulating ring 5, the metal rods 51 can shield an electric field, so that the static electricity stays on the insulating ring 5 and the tapered tube 12, so as to avoid affecting the adsorption work of the electrostatic adsorption net 122, a rotating ring 52 is fixedly mounted at one end of the plurality of metal rods 51 far from the insulating ring 5, a plurality of fixing rods 54 are fixedly mounted at an outer side of a lower end of the rotating ring 52, an air deflector 55 is fixedly mounted at one end of the plurality of fixing rods 54 far from the rotating ring 52, an upper radius of the air deflector 55 is smaller than a lower radius thereof, that is, the air deflector 55 is tapered, so that when air flows to the surroundings, the air flows downward at the same time, the powder is blown obliquely downward of the tapered tube 12, so that the non-metal powder is closer to the tapered tube 12 and is more easily adsorbed by the electrostatic adsorption net 122, and the plurality of fixing rods 54 are vertically connected to the outer surface of the air deflector 55.
Referring to fig. 4-5, a rotating shaft 551 is fixedly installed at the upper end of the air deflector 55, a plurality of fan blades 552 are fixedly installed between the outer surface of the rotating shaft 551 and the inner surface of the rotating ring 52, an air flow enters the rotating ring 52 through the air inlet pipe 131 and the tapered air inlet pipe 53 to drive the fan blades 552 to rotate, so that the rotating ring 52, the metal bar 51 and the insulating ring 5 rotate, the tapered air inlet pipe 53 is rotatably connected to the upper end of the rotating ring 52 to prevent powder from staying on the tapered air inlet pipe 53, the micro-fan 13 communicated with the tapered air inlet pipe 53 is installed on the inner surface of the hollow column 1, and the air inlet pipe 131 is fixedly installed between the upper portion of the outer surface of the tapered air inlet pipe 53 and the micro-fan 13.
Referring to fig. 8-9, an elastic conical hopper 211 is fixedly mounted at the upper end of the conical tube 12, so that the elastic conical hopper 211 is convenient to deform along with the vibration of the vibration plate 21, and the stability of the lower part of the powder sieving machine is prevented from being affected, a vibration plate 21 is fixedly mounted at the upper end of the elastic conical hopper 211, the outer side of the vibration plate 21 is located in the inner cavity of the U-shaped concave ring 2, so that the vibration plate 21 is prevented from being separated from the device, two threaded rods 22 are fixedly mounted at the upper end of the vibration plate 21, the outer surfaces of the two threaded rods 22 are jointly and slidably connected with a cover plate 4, the cover plate 4 can plug the uppermost sieving hopper, so as to prevent powder from leaking during vibration, nuts are threadedly connected to the outer surfaces of the two cover plates 4, a first sieving hopper 212 communicated with the elastic conical hopper 211 is fixedly mounted at the outer side of the upper end of the vibration plate 21, and a connecting ring 3 is slidably connected to the outer surface of the first sieving hopper 212, the internal surface fixed mounting of go-between 3 has the carrier ring, the internal surface sliding connection of go-between 3 has the communicating second screening fill 31 with first screening fill 212, second screening fill 31 has screening hole 32, come the stack screening fill through go-between 3 and carrier ring, seals it through apron 4 at last to accelerate dismouting speed, provide work efficiency, alleviate operating personnel's work burden, the lower extreme outside fixed mounting of vibration board 21 has ultrasonic vibration motor 14.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims (8)

1. The utility model provides a 3D prints metal powder vibration powder shifter with edulcoration function, includes hollow post (1), its characterized in that: the upper end fixed mounting of hollow post (1) has U type concave ring (2), the internal surface lower part fixed mounting of hollow post (1) has back cover ring (11), the internal surface fixed mounting of back cover ring (11) has a plurality of first connecting rod (114), and is a plurality of the common fixed mounting of one end that back cover ring (11) was kept away from to first connecting rod (114) has first spacer ring (1111), the internal surface fixed mounting of first spacer ring (1111) has a plurality of second connecting rod (115), and is a plurality of the common fixed mounting of one end that first spacer ring (1111) was kept away from to second connecting rod (115) has second spacer ring (1121), the upper end fixed mounting of back cover ring (11) has conical tube (12), the internal surface rotation of conical tube (12) is connected with insulating ring (5), the internal surface fixed mounting of insulating ring (5) has a plurality of metal rod (51), a rotating ring (52) is fixedly mounted at one end of each metal rod (51) far away from the insulating ring (5), a plurality of fixing rods (54) are fixedly mounted at the outer side of the lower end of the rotating ring (52), an air deflector (55) is fixedly mounted at one end of each fixing rod (54) far away from the rotating ring (52), a conical air inlet pipe (53) is rotatably connected to the upper end of the rotating ring (52), a micro fan (13) communicated with the conical air inlet pipe (53) is mounted on the inner surface of the hollow column (1), an elastic conical hopper (211) is fixedly mounted at the upper end of the conical pipe (12), a vibrating plate (21) is fixedly mounted at the upper end of the elastic conical hopper (211), the outer side of the vibrating plate (21) is located in an inner cavity of the U-shaped concave ring (2), and a first sieving hopper (212) communicated with the elastic conical hopper (211) is fixedly mounted at the outer side of the upper end of the vibrating plate (21), an ultrasonic vibration motor (14) is fixedly arranged on the outer side of the lower end of the vibration plate (21);
an air inlet pipe (131) is fixedly arranged between the upper part of the outer surface of the conical air inlet pipe (53) and the micro fan (13), a rotating shaft (551) is fixedly arranged at the upper end of the air deflector (55), and a plurality of fan blades (552) are fixedly arranged between the outer surface of the rotating shaft (551) and the inner surface of the rotating ring (52);
an empty groove (121) is formed in the inner surface of the conical tube (12), and an electrostatic adsorption net (122) is fixedly mounted inside the empty groove (121).
2. The 3D printing metal powder vibrating screen machine with the impurity removing function according to claim 1, characterized in that: the radius of the upper part of the air deflector (55) is smaller than that of the lower part of the air deflector, and the fixed rods (54) are vertically connected to the outer surface of the air deflector (55).
3. The 3D printing metal powder vibrating screen machine with the impurity removing function according to claim 1, characterized in that: the lower extreme fixed mounting of back cover ring (11) has first hollow ring (111), hollow ring of second (112) and discharge pipe (113), first hollow ring (111) and back cover ring (11) and first spacer ring (1111) between the space communicate with each other, hollow ring of second (112) and first spacer ring (1111) and second spacer ring (1121) between the space communicate with each other, discharge pipe (113) and the inner chamber of second spacer ring (1121) communicate with each other.
4. The 3D printing metal powder vibrating screen machine with the impurity removing function according to claim 3, characterized in that: the upper parts of the first separating ring (1111) and the second separating ring (1121) are both arc-shaped structures.
5. The 3D printing metal powder vibrating screen machine with the impurity removing function according to claim 1, characterized in that: the inner cavity bottom wall of the U-shaped concave ring (2) is fixedly provided with a cushion pad (23), and the inner surface of the opening of the cushion pad (23) is fixedly provided with a plurality of elastic telescopic rods (24).
6. The 3D printing metal powder vibrating screen machine with the impurity removing function according to claim 5, characterized in that: one end, far away from the U-shaped concave ring (2), of the elastic telescopic rod (24) is fixedly provided with an arc-shaped plate (25), and the radian of the inner surface of the arc-shaped plate (25) is equal to that of the outer surface of the U-shaped concave ring (2).
7. The 3D printing metal powder vibrating screen machine with the impurity removing function according to claim 1, characterized in that: the outer surface of the first screening hopper (212) is connected with a connecting ring (3) in a sliding mode, the inner surface of the connecting ring (3) is fixedly provided with a bearing ring, and the inner surface of the connecting ring (3) is connected with a second screening hopper (31) communicated with the first screening hopper (212) in a sliding mode.
8. The 3D printing metal powder vibrating screen machine with the impurity removing function according to claim 1, characterized in that: the upper end fixed mounting of vibration board (21) has two screw rods (22), two the common sliding connection of surface of screw rod (22) has apron (4), two the equal threaded connection of surface of apron (4) has the nut.
CN202210868102.XA 2022-07-22 2022-07-22 3D prints metal powder vibration powder shifter with edulcoration function Pending CN115069974A (en)

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