CN213257113U

CN213257113U - Powder return pipeline device of metal 3D printing equipment

Info

Publication number: CN213257113U
Application number: CN202022093817.1U
Authority: CN
Inventors: 李小英; 张承良
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-05-25
Anticipated expiration: 2030-09-22

Abstract

The utility model belongs to the technical field of 3D printing equipment, in particular to a powder return pipeline device of metal 3D printing equipment, which comprises a first supporting plate and a second supporting plate, wherein the inner sides of the first supporting plate and the second supporting plate are fixedly connected with a second supporting plate and a connecting plate, and the front side of the connecting plate is fixedly connected with a first bearing; this metal 3D printing apparatus returns powder pipe installation, through controlling the work of second motor, it rotates to drive second conveyer belt, under the conveying effect of conveyer belt, under the normal running fit of second pivot, drive first conveyer belt and rotate, thereby drive the cam and rotate, the cam rotates and drives the screening funnel through the horizontal block and carry out reciprocating motion from top to bottom, the powder of first screening net and second screening net in the screening funnel is sieved, can filter great cubic powder, thereby better retrieve the powder and recycle, through seting up the second and leak the powder hole, can be defeated to storing up the powder incasement with the metal powder that the screening finishes.

Description

Powder return pipeline device of metal 3D printing equipment

Technical Field

The utility model belongs to the technical field of 3D printing apparatus, concretely relates to metal 3D printing apparatus returns whitewashed pipe device.

Background

3D prints one kind of quick forming technique, also known as additive manufacturing it is one kind and uses digital model file as the basis, but the technique of applying adhesive material such as powdered metal or plastics, constructs the object through the mode of printing layer by layer, can be stained with on the printing panel after 3D printing apparatus returns the powder pipe device and prints and to glue the dust, and the dust is difficult to clear up, influences the result of use of 3D printing apparatus returns the powder pipe device.

Most structures of the existing metal 3D printing equipment powder return pipeline device are single, the 3D printing equipment powder return pipeline device can generate dust when printing to fly into the air, too much dust flies into the air, the dust is easy to be inhaled by a user, the damage to health is avoided, the utilization rate of the alloy powder formed by laser cladding or laser 3D printing at present is only 40% -60%, half of the powder is directly wasted, the existing device has certain limitation, the existing device does not have a reprocessing function, the powder cannot be well recycled, a part of massive powder cannot be screened and recycled, and certain waste is caused.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a metal 3D printing apparatus returns whitewashed pipe installation has screening effectual and the effectual characteristics of powder of returning.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a metal 3D printing apparatus returns powder pipe installation, includes first backup pad and second backup pad, the equal fixedly connected with second supporting shoe in inboard and the connecting plate of first backup pad and second backup pad, the first bearing of front side fixedly connected with of connecting plate, the first bearing internal rotation is connected with the second pivot, the top fixedly connected with second motor of second supporting shoe, the one end fixedly connected with second conveyer belt of second motor output shaft, the second conveyer belt is connected with first conveyer belt wheel through the conveyer belt transmission, first conveyer belt wheel fixed connection is on the surface of second pivot, first conveyer belt wheel back fixedly connected with cam, connecting plate and first conveyer belt wheel fixed connection, the surface overlap joint of cam has the horizontal piece.

The top fixedly connected with connecting rod of horizontal piece, the top fixedly connected with screening funnel of connecting rod, the second leaks whitewashed hole has been seted up to the bottom of screening funnel inner wall, first spout and second spout have been seted up to the side of screening funnel inner wall, sliding connection has first screening net in the first spout, sliding connection has the second screening net in the second spout, the inboard of first backup pad and second backup pad is all seted up flutedly, sliding connection has first slide bar in the recess, the sliding connection of the surface of first slide bar has first slider, the equal fixedly connected with fixed block of one end of first slider, two the fixed block is with the outside fixed connection of screening funnel.

The utility model discloses a powder printing machine, including first backup pad and second backup pad, the top fixedly connected with workstation of first backup pad and second backup pad, set up the first hourglass powder hole of a plurality of in the workstation, the top fixedly connected with of workstation inhales the powder subassembly, the top fixedly connected with printing assembly of workstation, printing assembly includes the arm and prints the shower nozzle, print shower nozzle fixed connection in the bottom of arm, arm fixed connection is at the top of workstation, the side fixedly connected with dust absorption head of printing the shower nozzle, the top fixedly connected with hose of dust absorption head, the one end of hose has the return powder pipe through connecting pipe threaded connection, the surface of return powder pipe is provided with the dust absorption pump, dust absorption pump fixed connection is in the side of workstation.

As a further aspect of the present invention: inhale whitewashed subassembly and include first motor, installation piece and second slide bar, the equal fixed connection of first motor, installation piece and second slide bar is at the top of workstation, fixedly connected with positive thread post on the output shaft of first motor, the one end fixedly connected with reverse thread post of positive thread post, the first pivot of one end fixedly connected with of reverse thread post, the surface rotation of first pivot is connected with the second bearing, second bearing fixed connection is in the side of installation piece, the equal threaded connection in surface of positive thread post and reverse thread post has the screw cap, the sliding surface of second slide bar is connected with two second sliders, two fixedly connected with brush with powder between second slider and the screw cap.

As a further aspect of the present invention: fixedly connected with mounting panel between first backup pad and the second backup pad, set up the third spout in the mounting panel, sliding connection has the powder storage box in the third spout.

As a further aspect of the present invention: the equal fixedly connected with first supporting block in inboard of first backup pad and second backup pad, fixedly connected with spring between the top of first supporting block and the bottom of fixed block.

As a further aspect of the present invention: the front sides of the first screening net and the second screening net are fixedly connected with handles, the mechanical arm is fixedly connected with a pipe sleeve, and the pipe sleeve is sleeved with the powder return pipe and the hose.

As a further aspect of the present invention: the top of workstation is provided with button switch, button switch passes through wire electric connection with second motor, first motor and dust absorption pump.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the metal 3D printing equipment powder return pipeline device drives the second conveying belt wheel to rotate by controlling the second motor to work, under the conveying action of the conveying belt, the first conveying belt wheel is driven to rotate under the rotation matching of the second rotating shaft, so that the cam is driven to rotate, the cam rotates to drive the screening funnel to reciprocate up and down through the transverse block, the powder on the first screening net and the powder on the second screening net in the screening funnel are screened, larger block-shaped powder can be filtered, the powder can be better recycled, the screened metal powder can be conveyed into the powder storage box by arranging the second powder leakage hole, the metal powder which is not melted by laser and the larger block-shaped powder can be screened by arranging the first screening net and the second screening net, the recycled powder is screened, the quality of the recycled powder is guaranteed, and under the matching of the first sliding block sliding on the surface of the first sliding rod, can cooperate the vibration of screening funnel, stability when the guarantee screening funnel vibrates.

2. This metal 3D printing apparatus returns powder pipe installation, through seting up first hourglass powder hole, can be with the powder that is not by laser melting at the printing in-process, directly fall on the workstation panel after in getting into the screening funnel through first hourglass powder hole, open through control dust absorption pump, the dust absorption pump is at the inside negative pressure that produces of powder return pipe, it can pass through the hose to return the powder pipe, and the powder that produces when printing is inhaled to the dust absorption head of printing shower nozzle one side in the powder return pipe, and carry to the screening funnel in through dust absorption pump and powder return pipe, thereby when having solved the user equipment, the device can produce the powder when printing and fly away to the air, too much powder is flown away in the air, easily inhaled by the user, influence the problem of the security that the device used.

3. The metal 3D printing equipment powder return pipeline device drives the positive thread column to rotate and drive the negative thread column to rotate by controlling the operation of the first motor, can drive the two thread caps to move oppositely, drives the powder cleaning brush to move oppositely under the matching of the sliding of the second sliding block on the second sliding rod, sweeps powder on the workbench into the first powder leakage hole, leaks into the screening funnel, is connected into the third sliding groove by the powder storage box in a sliding way, is convenient to take out the powder storage box, cleans the powder storage box, can reduce the vibration force borne by the screening funnel through the elastic action of the spring, avoids the damage of the screening funnel caused by the overlarge vibration force, thereby ensuring the screening effect on the powder, ensuring the stability of the first screening net and the second screening net, conveniently takes out the first screening net and the second screening net for cleaning by pulling the handle, and sets the pipe sleeve, can be with powder return pipe and hose fixed to the arm on, avoid its landing to influence work.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a front view section of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1;

FIG. 3 is a schematic view of the powder sucking assembly of FIG. 1 according to the present invention;

fig. 4 is a schematic three-dimensional structure view of the workbench shown in fig. 1 according to the present invention;

in the figure: 1. a first support plate; 2. a first bearing; 3. a connecting plate; 4. a first slide bar; 5. a groove; 6. a first slider; 7. a powder returning pipe; 8. a dust suction pump; 9. pipe sleeve; 10. a connecting pipe; 11. a hose; 12. a printing assembly; 121. a mechanical arm; 122. printing a spray head; 13. a dust collection head; 14. a powder suction assembly; 1401. a first motor; 1402. a threaded cap; 1403. a positive threaded post; 1404. a reverse-threaded post; 1405. a first rotating shaft; 1406. a second bearing; 1407. mounting blocks; 1408. cleaning and brushing; 1409. a second slider; 1410. a second slide bar; 15. a first powder leakage hole; 16. a work table; 17. screening a funnel; 18. a first chute; 19. a first screening net; 20. a fixed block; 21. a spring; 22. a first support block; 23. a second chute; 24. a second screening mesh; 25. a second support plate; 26. mounting a plate; 27. a handle; 28. a third chute; 29. a powder storage box; 30. a second support block; 31. a second powder leakage hole; 32. a connecting rod; 33. a transverse block; 34. a cam; 35. a first conveyor belt pulley; 36. a conveyor belt; 37. a second belt pulley; 38. a second motor; 39. a push button switch; 40. a second rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: a powder return pipeline device of a metal 3D printing device comprises a first supporting plate 1 and a second supporting plate 25, wherein the inner sides of the first supporting plate 1 and the second supporting plate 25 are fixedly connected with a second supporting block 30 and a connecting plate 3, the front side of the connecting plate 3 is fixedly connected with a first bearing 2, a second rotating shaft 40 is rotatably connected with the first bearing 2, the top of the second supporting block 30 is fixedly connected with a second motor 38, the second motor 38 is controlled to work to drive a second conveying belt wheel 37 to rotate, under the conveying action of a conveying belt 36, under the rotation coordination of the second rotating shaft 40, a first conveying belt wheel 35 is driven to rotate, so as to drive a cam 34 to rotate, the cam 34 rotates to drive a screening funnel 17 to reciprocate up and down through a transverse block 33, so as to screen the powder on a first screening net 19 and a second screening net 24 in the screening funnel 17, and filter out larger block-shaped powder, thereby better recycling the powder.

One end fixedly connected with second transfer belt wheel 37 of second motor 38 output shaft, second transfer belt wheel 37 is connected with first transfer belt wheel 35 through the transmission of conveyer belt 36, first transfer belt wheel 35 fixed connection is on the surface of second pivot 40, first transfer belt wheel 35 back fixedly connected with cam 34, connecting plate 3 and first transfer belt wheel 35 fixed connection, the surface overlap joint of cam 34 has horizontal block 33, the top fixedly connected with connecting rod 32 of horizontal block 33, the top fixedly connected with screening funnel 17 of connecting rod 32, second hourglass powder hole 31 has been seted up to the bottom of screening funnel 17 inner wall, through seting up second hourglass powder hole 31, can be defeated to storing up in the powder case 29 with the metal powder that finishes screening.

A first chute 18 and a second chute 23 are arranged on the side surface of the inner wall of the screening funnel 17, a first screening net 19 is connected in the first chute 18 in a sliding way, a second screening net 24 is connected in the second chute 23 in a sliding way, by providing the first and second sieving nets 19 and 24, the metal powder that is not melted by the laser can be sieved with the larger lump powder, the recycled powder is screened, the quality of the recycled powder is guaranteed, grooves 5 are formed in the inner sides of the first supporting plate 1 and the second supporting plate 25, a first sliding rod 4 is connected in the grooves 5 in a sliding mode, a first sliding block 6 is connected on the surface of the first sliding rod 4 in a sliding mode, through first slider 6 under the gliding cooperation in first slide bar 4 surface, can cooperate screening funnel 17's vibration, stability when guarantee screening funnel 17 vibrates, the equal fixedly connected with fixed block 20 of one end of first slider 6, the outside fixed connection of two fixed blocks 20 and screening funnel 17.

Top fixedly connected with workstation 16 of first backup pad 1 and second backup pad 25, set up the first hourglass powder hole 15 of a plurality of in the workstation 16, through seting up first hourglass powder hole 15, can be with not being printed the in-process by laser melting's powder, directly drop on the workstation 16 panel after get into in the screening funnel 17 through first hourglass powder hole 15, powder subassembly 14 is inhaled to the top fixedly connected with of workstation 16, the top fixedly connected with printing assembly 12 of workstation 16, printing assembly 12 includes arm 121 and printing shower nozzle 122, printing shower nozzle 122 fixed connection is in the bottom of arm 121, arm 121 fixed connection is at the top of workstation 16, the side fixedly connected with dust absorption head 13 of printing shower nozzle 122.

The top fixedly connected with hose 11 of dust absorption head 13, there is powder return pipe 7 one end of hose 11 through connecting pipe 10 threaded connection, the surface of powder return pipe 7 is provided with dust absorption pump 8, dust absorption pump 8 fixed connection is in the side of workstation 16, open through controlling dust absorption pump 8, dust absorption pump 8 produces the negative pressure in powder return pipe 7 is inside, powder return pipe 7 can pass through hose 11, and the dust absorption head 13 of printing shower nozzle 122 one side will print the powder that produces and inhale in powder return pipe 7, and carry to screening funnel 17 through dust absorption pump 8 and powder return pipe 7, thereby when having solved the user equipment, the device can produce the powder when printing and float to the air, too much powder floats to the air, be inhaled by the user, influence the problem of the security of device use.

The powder sucking component 14 comprises a first motor 1401, a mounting block 1407 and a second sliding rod 1410, the first motor 1401, the mounting block 1407 and the second sliding rod 1410 are all fixedly connected to the top of the workbench 16, a positive thread column 1403 is fixedly connected to an output shaft of the first motor 1401, the positive thread column 1403 is driven to rotate by controlling the first motor 1401 to drive a reverse thread column 1404 to rotate, two thread caps 1402 can be driven to move in opposite directions, a powder cleaning brush 1408 is driven to move in opposite directions by the sliding fit of a second sliding block 1409 on the second sliding rod 1410, powder on the workbench 16 is swept into a first powder leakage hole 15 and leaks into a screening funnel 17, one end of the positive thread column 1403 is fixedly connected with the reverse thread column 1404, one end of the reverse thread column 1404 is fixedly connected with a first rotating shaft 1405, the surface of the first rotating shaft 1405 is rotatably connected with a second bearing 1406, the second bearing 1406 is fixedly connected to the side surface of the mounting block 1407, the surfaces of the positive threaded column 1403 and the negative threaded column 1404 are each threadedly connected with a threaded cap 1402, and the surface of the second slide bar 1410 is slidably connected with two second sliders 1409.

Fixedly connected with brush 1408 clearly between two second sliders 1409 and screw cap 1402, fixedly connected with mounting panel 26 between first backup pad 1 and the second backup pad 25, third spout 28 has been seted up in the mounting panel 26, through storing up powder case 29 sliding connection in third spout 28, conveniently take out storage powder case 29, clear up storage powder case 29, sliding connection has storage powder case 29 in third spout 28, the equal first supporting block 22 of fixedly connected with in inboard of first backup pad 1 and second backup pad 25, fixedly connected with spring 21 between the top of first supporting block 22 and the bottom of fixed block 20, elastic action through spring 21, can reduce the vibrational force that screening funnel 17 received, avoid the too big damage that causes screening funnel 17 of vibrational force, thereby guarantee the screening effect to the powder, guarantee the stability of first screening net 19 and second screening net 24.

The equal fixedly connected with handle 27 in front side of first screening net 19 and second screening net 24, through pulling handle 27, conveniently take out first screening net 19 and second screening net 24 and clear up, fixedly connected with pipe box 9 on arm 121, pipe box 9 cup joints with powder return pipe 7 and hose 11, through setting up pipe box 9, can be with powder return pipe 7 and hose 11 fixed to arm 121 on, avoid its landing to influence work.

The utility model discloses a theory of operation does:

s1, firstly, the dust suction pump 8 is controlled to be started by clicking the button switch 39, the dust suction head 13 on the side of the printing nozzle 122 conveys the powder flying in the printing process into the screening hopper 17 through the hose 11 and the powder return pipe 7, when the printing work is finished, part of the powder is scattered on the workbench 16, the first motor 1401 is controlled to start working by clicking the button switch 39, the positive threaded column 1403 is driven to rotate to drive the reverse threaded column 1404 to rotate, and simultaneously the two threaded caps 1402 are driven to move oppositely under the sliding fit of the second sliding block 1409 on the surface of the second sliding rod 1410, so that the two powder cleaning brushes 1408 move oppositely, the powder on the surface of the workbench 16 is cleaned, and the cleaned powder falls into the screening hopper 17 through the first powder leakage hole 15;

s2, by clicking the button switch 39, the second motor 38 is controlled to start working, the second belt pulley 37 is driven to rotate, under the conveying action of the conveyor belt 36, the first conveyor belt wheel 35 is driven to rotate under the rotation coordination of the second rotating shaft 40, the cam 34 is driven to rotate, the cam 34 rotates to drive the screening funnel 17 to reciprocate up and down through the cross block 33, under the matching of the first sliding block 6 sliding on the first sliding rod 4 and the elastic action of the spring 21, the first screening net 19 and the second screening net 24 are driven to shake, firstly, the powder falling on the first screening net 19 is screened, the powder which is not melted by laser falls on the second screening net 24, wherein, the larger block-shaped powder is left on the first screening net 19, the powder sequentially passes through the vibrating second screening net 24, and finally the more standard powder falls into the storage box through the second powder leakage hole 31;

s3, after the device is used for a certain time, pulling the handle 27, taking out the first screening net 19 and the second screening net 24 under the matching of the first screening net 19 sliding in the first chute 18 and the second screening net 24 sliding in the second chute 23, and cleaning the powder on the first screening net 19 and the second screening net 24.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a metal 3D printing apparatus returns powder pipe installation, includes first backup pad (1) and second backup pad (25), its characterized in that: the inner sides of the first supporting plate (1) and the second supporting plate (25) are fixedly connected with a second supporting block (30) and a connecting plate (3), the front side of the connecting plate (3) is fixedly connected with a first bearing (2), a second rotating shaft (40) is rotatably connected with the first bearing (2), the top of the second supporting block (30) is fixedly connected with a second motor (38), one end of an output shaft of the second motor (38) is fixedly connected with a second conveying belt wheel (37), the second conveying belt wheel (37) is in transmission connection with a first conveying belt wheel (35) through a conveying belt (36), the first conveying belt wheel (35) is fixedly connected to the surface of the second rotating shaft (40), the back of the first conveying belt wheel (35) is fixedly connected with a cam (34), and a transverse block (33) is lapped on the surface of the cam (34);

the top of the transverse block (33) is fixedly connected with a connecting rod (32), the top of the connecting rod (32) is fixedly connected with a screening funnel (17), a second powder leakage hole (31) is formed at the bottom of the inner wall of the screening funnel (17), a first sliding chute (18) and a second sliding chute (23) are formed on the side surface of the inner wall of the screening funnel (17), a first screening net (19) is connected in the first chute (18) in a sliding way, a second screening net (24) is connected in the second chute (23) in a sliding way, the inner sides of the first supporting plate (1) and the second supporting plate (25) are respectively provided with a groove (5), a first slide bar (4) is connected in the groove (5) in a sliding way, a first slide block (6) is connected on the surface of the first slide bar (4) in a sliding way, one end of each first sliding block (6) is fixedly connected with a fixed block (20), and the two fixed blocks (20) are fixedly connected with the outer side of the screening hopper (17);

the top fixedly connected with workstation (16) of first backup pad (1) and second backup pad (25), seted up the first hourglass powder hole of a plurality of (15) in workstation (16), the top fixedly connected with of workstation (16) inhales powder subassembly (14), the top fixedly connected with printing module (12) of workstation (16), printing module (12) includes arm (121) and printing shower nozzle (122), printing shower nozzle (122) fixed connection is in the bottom of arm (121), arm (121) fixed connection is at the top of workstation (16), the side fixedly connected with dust absorption head (13) of printing shower nozzle (122), the top fixedly connected with hose (11) of dust absorption head (13), the one end of hose (11) has powder return pipe (7) through connecting pipe (10) threaded connection, the surface of powder return pipe (7) is provided with dust absorption pump (8), the dust suction pump (8) is fixedly connected to the side surface of the workbench (16).

2. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that: the powder sucking component (14) comprises a first motor (1401), an installation block (1407) and a second sliding rod (1410), wherein the first motor (1401), the installation block (1407) and the second sliding rod (1410) are all fixedly connected to the top of a workbench (16), a positive thread column (1403) is fixedly connected to an output shaft of the first motor (1401), a reverse thread column (1404) is fixedly connected to one end of the positive thread column (1403), a first rotating shaft (1405) is fixedly connected to one end of the reverse thread column (1404), a second bearing (1406) is rotatably connected to the surface of the first rotating shaft (1405), the second bearing (1406) is fixedly connected to the side face of the installation block (1407), threaded caps (1402) are respectively connected to the surfaces of the positive thread column (1403) and the reverse thread column (1404), and two second sliding blocks (1409) are slidably connected to the surface of the second sliding rod (1410), a cleaning brush (1408) is fixedly connected between the two second sliding blocks (1409) and the threaded cap (1402).

3. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that: fixedly connected with mounting panel (26) between first backup pad (1) and second backup pad (25), third spout (28) have been seted up in mounting panel (26), sliding connection has powder storage box (29) in third spout (28).

4. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that: the equal fixedly connected with first supporting block (22) in inboard of first backup pad (1) and second backup pad (25), fixedly connected with spring (21) between the top of first supporting block (22) and the bottom of fixed block (20).

5. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that: the front sides of the first screening net (19) and the second screening net (24) are fixedly connected with handles (27), the mechanical arm (121) is fixedly connected with a pipe sleeve (9), and the pipe sleeve (9) and the powder return pipe (7) are sleeved with the hose (11).

6. The metal 3D printing equipment powder return pipeline device according to claim 1, characterized in that: the top of the workbench (16) is provided with a button switch (39), and the button switch (39) is electrically connected with the second motor (38), the first motor (1401) and the dust collection pump (8) through conducting wires.