CN111483144A

CN111483144A - Powder paving device of 3D printer

Info

Publication number: CN111483144A
Application number: CN202010385229.7A
Authority: CN
Inventors: 朱苗苗
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-09
Filing date: 2020-05-09
Publication date: 2020-08-04

Abstract

The invention discloses a powder spreading device of a 3D printer, which comprises a lower charging barrel with an opening at the lower end, wherein a conveying mechanism is arranged at the upper end of the barrel wall at one side of the lower charging barrel, and the conveying mechanism and the upper end of the lower charging barrel are jointly provided with a storage mechanism. So that the powder is spread and laid more uniformly.

Description

Powder paving device of 3D printer

Technical Field

The invention relates to a powder laying device of a 3D printer, and belongs to the technical field of 3D printers.

Background

3D printing is one of rapid prototyping technologies, and is a technology for constructing an object by using a powder material (powder for short) and a layer-by-layer printing mode on the basis of a digital model file.

When the existing powder spreading device of the printer is used, the powder is only spread through uniform reciprocating back and forth of the powder spraying nozzle, the powder is easy to form accumulation on the back and forth reciprocating track, and then the powder spreading of the powder spreading machine is not uniform, so that the powder spreading device of the 3D printer needs to be designed.

Disclosure of Invention

The invention aims to solve the problems, and provides a powder laying device of a 3D printer, which solves the problem that when the existing powder laying device of the printer is used, powder is laid back and forth only through a powder spraying nozzle at a constant speed, so that powder laying is easy to form accumulation on a back and forth reciprocating track, and further the powder laying of the powder laying machine is uneven.

In order to solve the above problems, the present invention provides a technical solution:

the utility model provides a shop's powder device of 3D printer, includes a lower feed cylinder that is the setting of lower extreme opening, a conveying mechanism is installed to the section of thick bamboo wall upper end of one side wherein of lower feed cylinder, a storage mechanism is installed jointly to conveying mechanism and the upper end of lower feed cylinder, a actuating mechanism is installed to the last actuating mechanism of installing of conveying mechanism, the internally mounted of lower feed cylinder has a stone mechanism, the upper end section of thick bamboo wall that the upper end of stone mechanism runs through lower feed cylinder just installs an impact mechanism, conveying mechanism passes through drive mechanism and is connected with stone mechanism.

Preferably, the conveying mechanism comprises a conveying sleeve with an opening at one end, the conveying sleeve is fixedly connected to the upper end of the cylinder wall of one side of the lower cylinder, the opening at one end of the conveying sleeve is communicated with the lower cylinder, the cylinder wall of one side, far away from the lower cylinder, of the conveying sleeve is rotatably connected with a rotating rod through a second bearing, one end of the rotating rod extends to the outside of the conveying sleeve, the other end of the rotating rod penetrates through the conveying sleeve and extends to the inside of the lower cylinder, and the rotating rod is located on the rod wall inside the conveying sleeve and is fixedly connected with a conveying blade in a spiral shape.

Preferably, the storage mechanism comprises a connecting pipe, the connecting pipe is fixedly connected to the upper end cylinder wall of the conveying sleeve, the connecting pipe is communicated with the conveying sleeve, a storage box is fixedly connected to the upper end of the connecting pipe, an inner cavity of the storage box is arranged in an inclined manner, the inner cavity of the storage box is communicated with the connecting pipe, a supporting block is fixedly connected to one side, far away from the connecting pipe, of the lower surface of the storage box, and the supporting block is fixedly connected to one side edge of the upper surface of the lower charging barrel.

Preferably, the driving mechanism comprises a driving motor, the driving motor is fixedly connected to one side edge of the lower surface of the conveying sleeve, a first driving wheel is fixedly connected to the output end of the driving motor through a coupler, a second driving wheel is fixedly connected to the wall of the rotating rod of the position of the first driving wheel, and a driving belt is connected between the first driving wheel and the second driving wheel in a driving mode.

Preferably, the powder spreading mechanism comprises a fixed rod, the fixed rod is rotatably connected to the upper end barrel wall of the lower charging barrel through a first bearing, the upper end of the fixed rod penetrates through the upper surface of the lower charging barrel and extends upwards, the fixed rod is located on the rod wall inside the lower charging barrel and is fixedly connected with a material receiving disk, a material receiving groove is formed in the upper surface of the material receiving disk, the bottom of the material receiving groove is in a surrounding shape and penetrates through the fixed rod at uniform equal intervals, a plurality of discharging holes are formed in the bottom of the material receiving groove, and a plurality of smoothing rods are fixedly connected to the lower end rod wall of the fixed rod at uniform equal intervals in a surrounding shape.

Preferably, the striking mechanism includes a rolling disc, rolling disc fixed connection is located the outside one end of feed cylinder down at the dead lever, the upper surface of rolling disc rotates through first pivot and is connected with a connecting rod, corresponds a connecting hole has been seted up on the storage case lateral wall of connecting rod position, corresponds a striking chamber has been seted up to the storage incasement portion of connecting hole other end aperture department position, the one end that the rolling disc was kept away from to the connecting rod runs through the connecting hole and extends to the inside in striking chamber, the one end that the connecting rod is located striking intracavity portion rotates through the second pivot and is connected with an striking piece, the one end that the connecting rod was kept away from to the striking piece offsets with the chamber wall in striking chamber.

Preferably, the transmission mechanism comprises a first bevel gear and a second bevel gear, the first bevel gear is fixedly sleeved on the rod wall of the fixed rod corresponding to the rotating rod, the second bevel gear is fixedly sleeved on the rod wall of the rotating rod in the lower charging barrel, and the first bevel gear is meshed with the second bevel gear.

Preferably, a valve is arranged on the connecting pipe.

The invention has the beneficial effects that:

1. the invention relates to a powder paving device of a 3D printer, which is characterized in that when the powder paving device is used, a driving motor is started to drive a rotating rod to rotate, powder in a storage box enters a conveying sleeve through a connecting pipe, the rotating rod drives a conveying blade to convey the powder in a discharging barrel into the discharging barrel, the rotating rod drives a fixing rod to rotate through the matching of a first bevel gear and a second bevel gear, the fixing rod drives a material receiving plate to rotate, the powder uniformly falls into a material receiving groove on the material receiving plate and then uniformly falls onto a processed supporting plate through a discharging hole, and meanwhile, the fixing rod drives a leveling rod to avoid leveling the powder, so that the powder paving and the powder paving are uniform.

2. The invention relates to a powder spreading device of a 3D printer, wherein when the powder spreading device is used, a fixed rod synchronously drives a rotating disc to rotate, the rotating disc can drive a connecting rod to reciprocate back and forth when rotating, the connecting rod drives a collision block to reciprocate back and forth in a collision cavity, and the collision block is further driven to collide with the wall of the collision cavity back and forth, so that powder is prevented from remaining in the inner cavity of a storage box.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.

FIG. 1 is a front cut-away view of the present invention;

FIG. 2 is a top cut away view of the present invention;

FIG. 3 is a top cut away view of the feed barrel of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;

fig. 5 is an enlarged view of the portion B of fig. 1 according to the present invention.

In the figure: 1. feeding the material barrel; 2. a conveying mechanism; 21. a delivery sleeve; 22. rotating the rod; 23. a conveying blade; 3. a material storage mechanism; 31. a connecting pipe; 32. a material storage box; 33. a support block; 4. a drive mechanism; 41. a drive motor; 42. a first drive pulley; 43. a second transmission wheel; 44. a transmission belt; 5. a powder spreading mechanism; 51. fixing the rod; 52. a take-up pan; 53. a material receiving groove; 54. a blanking hole; 55. smoothing the rod; 6. an impact mechanism; 61. rotating the disc; 62. a connecting rod; 63. connecting holes; 64. an impingement chamber; 65. an impact block; 7. a transmission mechanism; 71. a first bevel gear; 72. a second bevel gear; 8. and (4) a valve.

The specific implementation mode is as follows:

as shown in fig. 1 to 5, the following technical solutions are adopted in the present embodiment:

a powder paving device of a 3D printer comprises a lower charging barrel 1 with an opening at the lower end, a conveying mechanism 2 is arranged at the upper end of the barrel wall of one side of the lower charging barrel 1, the conveying mechanism 2 and the upper end of the lower charging barrel 1 are jointly provided with a material storage mechanism 3, a driving mechanism 4 is arranged on the conveying mechanism 2, a material paving mechanism 5 is arranged in the lower charging barrel 1, the upper end of the material paving mechanism 5 penetrates through the barrel wall of the upper end of the lower charging barrel 1 and is provided with an impact mechanism 6, the conveying mechanism 2 is connected with the material paving mechanism 5 through a transmission mechanism 7, the conveying mechanism 2 is driven by the driving mechanism 4 to operate, the conveying mechanism 2 conveys powder in the material storage mechanism 3 to the material paving mechanism 5 in the lower charging barrel 1, meanwhile, the conveying mechanism 2 drives the powder paving mechanism 5 through the transmission mechanism 7 to uniformly pave the powder, and synchronously drives the impact mechanism 6 to impact the material storage mechanism, avoiding powder remaining inside the storage mechanism 3.

Wherein, conveying mechanism 2 includes a conveying sleeve 21 that is one end opening setting, conveying sleeve 21 fixed connection is in the section of thick bamboo wall upper end of feed cylinder 1 one of them side down, the one end opening part of conveying sleeve 21 is linked together with feed cylinder 1 down, one side section of thick bamboo wall that conveying sleeve 21 kept away from feed cylinder 1 down is connected with a dwang 22 through the second bearing rotation, one of them one end of dwang 22 extends to the outside of conveying sleeve 21, the other end of dwang 22 runs through conveying sleeve 21 and extends to the inside of feed cylinder 1 down, dwang 22 is a transport blade 23 of heliciform fixedly connected with on being located the pole wall of conveying sleeve 21 inside.

Wherein, storage mechanism 3 includes a connecting pipe 31, connecting pipe 31 fixed connection is on the upper end section of thick bamboo wall of conveying sleeve 21, connecting pipe 31 is linked together with conveying sleeve 21, a storage case 32 of upper end fixedly connected with of connecting pipe 31, the inner chamber of storage case 32 is the slope form setting, the inner chamber of storage case 32 is linked together with connecting pipe 31, a supporting shoe 33 of one side fixedly connected with of connecting pipe 31 is kept away from to the lower surface of storage case 32, supporting shoe 33 fixed connection is at one side edge of feed cylinder 1 upper surface under.

The driving mechanism 4 includes a driving motor 41, the driving motor 41 is fixedly connected to an edge of one side of the lower surface of the conveying sleeve 21, an output end of the driving motor 41 is fixedly connected with a first driving wheel 42 through a coupler, a second driving wheel 43 is fixedly connected to a wall of the rotating rod 22 corresponding to the position of the first driving wheel 42, and a driving belt 44 is connected between the first driving wheel 42 and the second driving wheel 43 in a driving manner.

Wherein, spread powder mechanism 5 and include a dead lever 51, dead lever 51 rotates through first bearing and connects on the upper end section of thick bamboo wall of feed cylinder 1 down, the upper end of dead lever 51 runs through the upper surface of feed cylinder 1 down and upwards extends, dead lever 51 is located a take-up (stock) pan 52 of fixedly connected with on the pole wall of feed cylinder 1 inside down, take-up (stock) pan 52's upper surface has been seted up one and has been connect silo 53, the bottom that connects silo 53 is the even equidistance of form of encircleing about dead lever 51 and has run through and has seted up a plurality of unloading hole 54, be on the lower extreme pole wall of dead lever 51 and circle a plurality of root of the even.

Wherein, striking mechanism 6 includes a rolling disc 61, rolling disc 61 fixed connection is located the outside one end of feed cylinder 1 at dead lever 51, the upper surface of rolling disc 61 rotates through first pivot and is connected with a connecting rod 62, a connecting hole 63 has been seted up on the storage case 32 lateral wall that corresponds the connecting rod 62 position, a striking chamber 64 has been seted up to the storage case 32 inside that corresponds the other end aperture department position of connecting hole 63, the one end that the rolling disc 61 was kept away from to connecting rod 62 runs through connecting hole 63 and extends to the inside of striking chamber 64, the connecting rod 62 is located the inside one end of striking chamber 64 and rotates through the second pivot and is connected with a striking piece 65, the one end that connecting rod 62 was kept away from to striking piece 65 offsets with the chamber wall that strikes chamber.

The transmission mechanism 7 comprises a first bevel gear 71 and a second bevel gear 72, the first bevel gear 71 is fixedly sleeved on the rod wall of the fixed rod 51 corresponding to the rotating rod 22, the second bevel gear 72 is fixedly sleeved on the rod wall of the rotating rod 22 in the lower charging barrel 1, and the first bevel gear 71 is meshed with the second bevel gear 72.

Wherein, a valve 8 is arranged on the connecting pipe 31.

The using state of the invention is as follows: the invention relates to a powder spreading device of a 3D printer, when in use, firstly, a driving motor 41 is started to drive a first driving wheel 42 to rotate, the first driving wheel 42 drives a second driving wheel 43 to rotate through a driving belt 44, the second driving wheel 43 drives a rotating rod 22 to rotate, at the moment, a valve 8 can be opened, powder in a storage box 32 enters a conveying sleeve 21 through a connecting pipe 31, the rotating rod 22 drives a conveying blade 23 to convey the powder entering the conveying sleeve 21 to a discharging barrel 1 and falls into a receiving groove 53 on a receiving tray 52, when the rotating rod 22 rotates, a fixing rod 51 can be driven to rotate through the meshing transmission of a first bevel gear 71 and a second bevel gear 72, the fixing rod 51 drives the receiving tray 52 to rotate, so that the powder uniformly falls into the receiving groove 53 and is uniformly discharged downwards through a discharging hole 54 at the bottom of the receiving tray 53, meanwhile, the fixing rod 51 drives the smoothing rod 55 to smooth the falling powder, so that the powder on the processing table is more uniformly laid; and dead lever 51 can drive rolling disc 61 synchronous rotation when rotating, and rolling disc 61 can drive one of them one end rotary motion of connecting rod 62 when rotating, and then drives the other end of connecting rod 62 and do reciprocating motion back and forth, and connecting rod 62 drives striking block 65 and is synchronous motion in striking chamber 64 for striking block 65 strikes with the chamber wall that strikes chamber 64, makes storage case 32 vibrations this moment, avoids having the powder to produce in the inside of storage case 32 and remains.

While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a shop's powder device of 3D printer, its characterized in that, includes a lower feed cylinder (1) that is the setting of lower extreme opening, a conveying mechanism (2) are installed to the section of thick bamboo wall upper end of one side wherein of feed cylinder (1) down, a storage mechanism (3) are installed jointly to conveying mechanism (2) and the upper end of feed cylinder (1) down, install a actuating mechanism (4) on conveying mechanism (2), the internally mounted of feed cylinder (1) has a stone mechanism (5) down, the upper end section of thick bamboo wall of feed cylinder (1) and install an striking mechanism (6) down run through in the upper end of stone mechanism (5), conveying mechanism (2) are connected with stone mechanism (5) through drive mechanism (7).

2. The powder paving device of the 3D printer according to claim 1, characterized in that: conveying mechanism (2) are including one and are conveying sleeve (21) that one end opening set up, conveying sleeve (21) fixed connection is in the section of thick bamboo wall upper end of feed cylinder (1) one of them one side down, the one end opening part of conveying sleeve (21) is linked together with feed cylinder (1) down, one side section of thick bamboo wall that feed cylinder (1) was kept away from down in conveying sleeve (21) is rotated through the second bearing and is connected with a dwang (22), wherein one end of dwang (22) extends to the outside of conveying sleeve (21), the other end of dwang (22) runs through conveying sleeve (21) and extends to the inside of feed cylinder (1) down, dwang (22) are located and are one transport blade (23) of heliciform fixed connection on the pole wall of conveying sleeve (21) inside.

3. The powder paving device of the 3D printer according to claim 2, characterized in that: storage mechanism (3) include a connecting pipe (31), connecting pipe (31) fixed connection is on the upper end section of thick bamboo wall of transport sleeve (21), connecting pipe (31) are linked together with transport sleeve (21), storage case (32) of upper end fixedly connected with of connecting pipe (31), the inner chamber of storage case (32) is the slope form setting, the inner chamber and connecting pipe (31) of storage case (32) are linked together, one side fixedly connected with supporting shoe (33) of connecting pipe (31) are kept away from to the lower surface of storage case (32), supporting shoe (33) fixed connection is in one side edge of feed cylinder (1) upper surface down.

4. The powder paving device of the 3D printer according to claim 2, characterized in that: actuating mechanism (4) include a driving motor (41), driving motor (41) fixed connection is in one side edge of conveying sleeve (21) lower surface, first drive wheel (42) of shaft coupling fixedly connected with is passed through to the output of driving motor (41), corresponds second drive wheel (43) of fixedly connected with on dwang (22) pole wall of first drive wheel (42) position, the transmission is connected with a drive belt (44) between first drive wheel (42) and second drive wheel (43).

5. The powder paving device of the 3D printer according to claim 3, characterized in that: the powder paving mechanism (5) comprises a fixing rod (51), the fixing rod (51) is rotatably connected to the upper end barrel wall of the lower charging barrel (1) through a first bearing, the upper end of the fixing rod (51) penetrates through the upper surface of the lower charging barrel (1) and extends upwards, the fixing rod (51) is located on the rod wall inside the lower charging barrel (1) and is fixedly connected with a material receiving disk (52), a material receiving groove (53) is formed in the upper surface of the material receiving disk (52), the bottom of the material receiving groove (53) penetrates through a plurality of material discharging holes (54) in a surrounding manner at uniform equal intervals relative to the fixing rod (51), and a plurality of leveling rods (55) are fixedly connected to the lower end rod wall of the fixing rod (51) in a surrounding manner at uniform equal intervals.

6. The powder paving device of the 3D printer according to claim 4, characterized in that: the striking mechanism (6) comprises a rotating disc (61), the rotating disc (61) is fixedly connected with one end of the fixed rod (51) positioned outside the lower charging barrel (1), the upper surface of the rotating disc (61) is rotatably connected with a connecting rod (62) through a first rotating shaft, a connecting hole (63) is arranged on the side wall of the material storage box (32) corresponding to the connecting rod (62), a striking cavity (64) is arranged in the material storage box (32) corresponding to the position of the orifice at the other end of the connecting hole (63), one end of the connecting rod (62) far away from the rotating disc (61) penetrates through the connecting hole (63) and extends to the inside of the impact cavity (64), one end of the connecting rod (62) positioned in the impact cavity (64) is rotatably connected with an impact block (65) through a second rotating shaft, one end of the impact block (65), which is far away from the connecting rod (62), is abutted against the cavity wall of the impact cavity (64).

7. The powder paving device of the 3D printer according to claim 5, characterized in that: the transmission mechanism (7) comprises a first bevel gear (71) and a second bevel gear (72), the first bevel gear (71) is fixedly sleeved on the rod wall of the position, corresponding to the rotating rod (22), of the fixing rod (51), the second bevel gear (72) is fixedly sleeved on the rod wall of the rotating rod (22) located inside the lower charging barrel (1), and the first bevel gear (71) is meshed with the second bevel gear (72).

8. The powder paving device of the 3D printer according to claim 3, characterized in that: the connecting pipe (31) is provided with a valve (8).