CN111774569A

CN111774569A - Metal 3D printer with atomizing device

Info

Publication number: CN111774569A
Application number: CN202010788184.8A
Authority: CN
Inventors: 方彬; 王捍天
Original assignee: Nanjing Institute of Industry Technology
Current assignee: Nanjing Institute of Industry Technology
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2020-10-16

Abstract

The invention discloses a metal 3D printer with an atomization device, wherein a fixed rod is horizontally arranged on the inner wall of a shell, a sliding plate is connected onto the fixed rod in a sliding mode, a discharge nozzle is vertically arranged on the side wall of the sliding plate, the side wall of the discharge nozzle is connected with a rotating block in a surrounding and rotating mode, a power assembly is installed on the outer wall of the top of the rotating block, the top of the power assembly and the side wall of the sliding plate are mutually fixed, the discharge nozzle is symmetrically connected with two feeding pipes on the side wall of the upper end of the sliding plate, a cleaning assembly penetrates through the inside of the top end of the discharge nozzle, a power motor is arranged on one side of the cleaning assembly and drives the cleaning assembly, an air guide ring which is hollow inside is connected onto the top of the rotating block, a plurality of connecting pipes are connected onto the side wall. The invention has the advantages of crushing larger particles, clearing blockage, adjusting atomization range, realizing uniform atomization and the like.

Description

Metal 3D printer with atomizing device

Technical Field

The invention relates to the technical field of metal 3D printers, in particular to a metal 3D printer with an atomizing device.

Background

A 3D printer, also known as a three-dimensional printer (3DP), is a machine that is an additive manufacturing technique, i.e., a rapid prototyping technique, which is based on a digital model file, and manufactures a three-dimensional object by printing a layer of adhesive material on a layer by layer using an adhesive material such as a special wax material, powdered metal, or plastic.

Traditional metal printer all comes to export the material through the pipeline, the scope that gives off when leading to the material blowout is less, when printing large tracts of land object, just need long-time machine reciprocating motion, printing efficiency is lower, and some equipment that has atomizing device are because its atomizing spray tube track is fixed, and then in the use of reality, can not adjust the atomizing scope of its metal consumptive material, the high spraying scope that just can make the consumptive material of need adjusting printer nozzle is great, but more difficult to control like this, it is inhomogeneous to cause the spraying easily.

The metal printer need consume the metal consumptive material when using, and the demand particle diameter of this kind of metal consumptive material is less, is difficult to produce, and is expensive, and the consumptive material can not satisfy the requirement totally usually in the use of reality, and then can often appear the phenomenon that ejection of compact pipeline blockked up, and the material of selecting is relatively poor, and the thickness is inhomogeneous, and easy rigid coupling becomes the piece, incompletely melts the reason, the trouble of clearance pipeline ten minutes.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide a metal 3D printer with an atomizing device, and solves the problems that the atomizing device cannot be adjusted, material particles are large, and a pipeline is easy to block.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a metal 3D printer with an atomization device comprises a shell, wherein a fixed rod is horizontally arranged on the inner wall of the shell, a sliding plate is connected onto the fixed rod in a sliding mode, a discharge nozzle is vertically arranged on the side wall of the sliding plate, the side wall of the discharge nozzle is connected with a rotating block in a surrounding and rotating mode, a power assembly is installed on the outer wall of the top of the rotating block, the top of the power assembly and the side wall of the sliding plate are fixed with each other, the side wall of the discharge nozzle, which is located at the upper end of the sliding plate, is symmetrically connected with two feeding pipes, a cleaning assembly penetrates through the top of the discharge nozzle, a power motor is arranged on one side of the cleaning assembly and drives the cleaning assembly, the top of the rotating block is connected with an air guide ring which is hollow in the inner portion, a plurality of connecting pipes are connected onto the side, the utility model discloses a fixed pipe's air guide device, including rotating block, air guide ring, fixed pipe, air guide ring, air guide pipe, adjusting part, air guide ring and connecting pipe, the internally mounted of rotating block has adjusting part, adjusting part rotates with the lateral wall of fixed pipe to be connected, the upper end lateral wall of air guide ring encircles and rotates and is connected with the go-between that link up mutually, the outer wall.

As a further improvement of the invention, the power assembly comprises a fixed ring and a driving motor, the fixed ring is fixed on the side wall of the upper end of the rotating block in a surrounding manner, the driving motor is fixedly connected with the side wall of the sliding plate, an output shaft of the driving motor is connected with a power gear, and the power gear is meshed with a gear on the fixed ring.

As a further improvement of the invention, the cleaning assembly comprises a rotating pipe, the inner wall of the rotating pipe is slidably connected with a central rod, the central rod and the outer wall of the bottom end of the rotating pipe are both fixed with crushing pieces in a surrounding manner, the top of the central rod is rotatably connected with a telescopic rod fixed with the side wall of the sliding plate, the rotating pipe is rotatably connected with the inner wall of the discharging spray head through a bearing, and the output shaft of the power motor is rotatably connected with a connecting gear ring sleeved at the lower end of the central rod through a driving gear.

As a further improvement of the invention, the adjusting assembly comprises a rotating bearing and a pull rod, the bottom of the rotating bearing is connected with a plurality of electric lifting rods in a surrounding and rotating mode, the electric lifting rods are fixed with the inner wall of the rotating block, and two ends of the pull rod are respectively connected with the rotating bearing and the side wall of the fixed pipe in a rotating mode through rotating shafts.

As a further improvement of the invention, the side wall of the bottom end of the air guide ring is fixedly connected with the rotating block, and the air guide ring is rotatably connected with the discharging spray head through a bearing.

As a further improvement of the invention, the rotating block is cylindrical, a plurality of grooves are formed in the positions, corresponding to the fixed pipes, of the outer wall of the rotating block in a surrounding mode, and the outer wall of the bottom end of each fixed pipe is rotatably connected with the inner wall of each groove.

Compared with the prior art, the invention has the following beneficial effects:

1. through the mutual matching of the cleaning assembly at the top of the discharging spray head and the power motor, when the device is used, the power motor drives the connecting toothed ring to rotate through the driving gear, the connecting toothed ring drives the rotating pipe and the internal central rod to rotate, then, larger particles at the top of the discharging spray head can be damaged through the crushing pieces at the bottom of the rotating pipe and the internal central rod, the probability that metal particles block a pipeline can be effectively reduced, meanwhile, the telescopic rod at the top of the central rod drives the central rod to move towards the bottom, and then, the crushing pieces at the bottom of the central rod can move towards the bottom of the discharging spray head while rotating, so that the blocked part can be cleaned in a rotating mode when the discharging spray head is blocked, the dredging is carried out, the manual operation is not needed, and the disassembly;

2. through the mutual matching of the rotating block and the power assembly, the power assembly drives the rotating block to rotate, and then the rotating block can drive the fixed pipe inside the rotating block to rotate, so that the fixed pipe can rotate around the discharging nozzle when gas is sprayed out, the flowing direction of the gas around the bottom of the discharging nozzle is more uniform, and the sprayed metal particles can be uniformly dispersed and cannot incline to one side;

3. through the mutual cooperation of dead lever and adjusting part, wherein electric lift pole drives rolling bearing up-and-down reciprocating motion, and then rolling bearing passes through the pull rod and drives fixed pipe rotation, makes the export of fixed socle portion carry out the incline, and then can change gaseous blowout direction, makes gas flow direction and ejection of compact shower nozzle contained angle change to atomizing scope when can adjusting the metal particles blowout as required, easy operation.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at the position A of the present invention;

FIG. 3 is a schematic structural view of a discharge nozzle according to the present invention;

FIG. 4 is a sectional view showing the internal structure of the cleaning assembly of the present invention;

FIG. 5 is a schematic view of the inner structure of the air guide ring of the present invention;

FIG. 6 is a top view of the internal structure of the adjustment assembly of the present invention;

in the drawings: 1. a housing; 2. fixing the rod; 3. a sliding plate; 4. a discharge nozzle; 5. rotating the block; 6. a power assembly; 601. a fixing ring; 602. a drive motor; 603. a power gear; 7. a feed pipe; 8. cleaning the assembly; 801. rotating the tube; 802. a connecting toothed ring; 803. a center pole; 804. crushing the slices; 805. a telescopic rod; 9. a power motor; 901. a drive gear; 10. a gas guide ring; 11. a connecting pipe; 12. a fixed tube; 13. an adjustment assembly; 131. a rotating bearing; 132. an electric lifting rod; 133. a pull rod; 134. a rotating shaft; 14. a connecting ring; 15. an air duct.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention relates to a metal 3D printer with an atomizing device, which comprises a shell 1, wherein a fixed rod 2 is horizontally arranged on the inner wall of the shell 1, a sliding plate 3 is connected onto the fixed rod 2 in a sliding manner, a discharge nozzle 4 is vertically arranged on the side wall of the sliding plate 3, a rotating block 5 is connected onto the side wall of the discharge nozzle 4 in a surrounding and rotating manner, a power assembly 6 is arranged on the outer wall of the top of the rotating block 5, the top of the power assembly 6 and the side wall of the sliding plate 3 are fixed with each other, two feed pipes 7 are symmetrically connected onto the side wall of the discharge nozzle 4, which is positioned at the upper end of the sliding plate 3, a cleaning assembly 8 is arranged in the top end of the discharge nozzle 4 in a penetrating manner, a power motor 9 is arranged on one side of the cleaning assembly 8, the power motor 9 drives the cleaning assembly 8, and an air guide ring 10 which is, the utility model discloses a pneumatic device, including air guide ring 10, be connected with a plurality of connecting pipes 11 on the lateral wall of air guide ring 10 around being connected with, the equal fixed pipe 12 of bottom of every connecting pipe 11 fixedly connected with, the internally mounted of turning block 5 has adjusting part 13, adjusting part 13 rotates with the lateral wall of fixed pipe 12 to be connected, the upper end lateral wall of air guide ring 10 encircles and rotates and is connected with the go-between 14 that link up mutually, the outer wall of go-between 14 is provided with a plurality of air ducts 15 that link up mutually, air duct 15 link up mutually with connecting pipe 11 through. The discharge nozzle 4 is made of metal.

As shown in fig. 1, the power assembly 6 includes a fixed ring 601 and a driving motor 602, the fixed ring 601 is fixed around the upper end side wall of the rotating block 5, the driving motor 602 is fixedly connected with the side wall of the sliding plate 3, an output shaft of the driving motor 602 is connected with a power gear 603, and the power gear 603 is meshed with a gear on the fixed ring 601. Start driving motor 602, drive the rotation of the power gear 603 that links to each other with driving motor 602 output shaft, the rotation of power gear 603 drives rather than the solid fixed ring 601's of meshing rotation, thereby drive and gu fixed ring 601 encircle the rotation of fixed turning block 5, then turning block 5 can drive its inside fixed pipe 12 and rotate, and make fixed pipe 12 when blowout inert gas, can be rotatory round ejection of compact shower nozzle 4, make the gas flow direction around ejection of compact shower nozzle 4 bottom more even, metal particle can evenly disperse when guaranteeing the blowout, can not incline to one side.

As shown in fig. 2, 3 and 4, the cleaning assembly 8 includes a rotating pipe 801, an inner wall of the rotating pipe 801 is slidably connected with a central rod 803, the central rod 803 and an outer wall of a bottom end of the rotating pipe 801 are both fixed with crushing pieces 804 in a surrounding manner, a top of the central rod 803 is rotatably connected with an expansion link 805 fixed with a side wall of the sliding plate 3, the rotating pipe 801 is rotatably connected with an inner wall of the discharging nozzle 4 through a bearing, and an output shaft of the power motor 9 is rotatably connected with a connecting toothed ring 802 sleeved on a lower end of the central rod 803 through a driving gear 901. Starting power motor 9, it is rotatory to drive through drive gear 901 and connect ring gear 802, then it is rotatory to drive rotating tube 801 and inside well core rod 803, then it is rotatory to drive the crushing piece 804 of rotating tube 801 and inside well core rod 803 bottom, can carry out the damage effect with the great granule at ejection of compact shower nozzle 4 top, can effectually reduce the probability that metal particle blockked up ejection of compact shower nozzle 4 inside, telescopic link 805 through well core rod 803 top drives well core rod 803 and removes to the bottom, then make the crushing piece 804 of well core rod 803 bottom rotatory simultaneously, can remove to ejection of compact shower nozzle 4's bottom, and then when ejection of compact shower nozzle 4 takes place to block up, can rotate the clearance to the position of jam, dredge, need not manual operation, need not to dismantle the clearance.

As shown in fig. 3 and 6, the adjusting assembly 13 includes a rotating bearing 131 and a pull rod 133, a plurality of electric lifting rods 132 are rotatably connected to the bottom of the rotating bearing 131, the electric lifting rods 132 are fixed to the inner wall of the rotating block 5, and both ends of the pull rod 133 are rotatably connected to the rotating bearing 131 and the side wall of the fixed pipe 12 through a rotating shaft 134. The electric lifting rod 132 drives the rotating bearing 131 to reciprocate up and down, and then the rotating bearing 131 drives the fixed pipe 12 to rotate through the pull rod 133, so that the outlet at the bottom of the fixed pipe 12 deflects, and the spraying direction of the gas can be changed.

As shown in fig. 3, the sidewall of the bottom end of the air guide ring 10 is fixedly connected with the rotating block 5, and the air guide ring 10 is rotatably connected with the discharging nozzle 4 through a bearing.

As shown in fig. 6, the rotating block 5 is cylindrical, a plurality of grooves are formed around the outer wall of the rotating block 5 corresponding to the fixed tubes 12, and the outer wall of the bottom end of each fixed tube 12 is rotatably connected with the inner wall of each groove. The rotating block 5 is made of metal, and the fixed pipe 12 is driven to rotate by the rotation of the rotating block 5.

The working principle is as follows: when equipment is used, the effect of the feeding pipe 7 through the two sides of the top of the discharging spray head 4, wherein the feeding pipe 7 is connected with materials, so that metal particles can enter the inside of the discharging spray head 4, in the flowing process of the metal particles, the larger particles can be gradually pushed to the top of the discharging spray head 4, the power motor 9 is started, the driving gear 901 drives the connecting toothed ring 802 to rotate, the connecting toothed ring 802 drives the rotating pipe 801 and the inside central rod 803 to rotate, then the crushing sheet 804 at the bottom of the rotating pipe 801 and the inside central rod 803 is driven to rotate, the larger particles at the top of the discharging spray head 4 can be damaged, and the probability that the metal particles block the inside of the discharging spray head 4 can be effectively reduced. In addition, the telescopic rod 805 at the top of the central rod 803 drives the central rod 803 to move towards the bottom, so that the crushing piece 804 at the bottom of the central rod 803 can move towards the bottom of the discharging nozzle 4 while rotating, and further when the discharging nozzle 4 is blocked, the blocked part can be cleaned by rotating, so that the dredging is realized, the manual operation is not needed, and the disassembly and the cleaning are not needed. Wherein inert gas is connected to air duct 15, air duct 15 link up with connecting pipe 11 mutually through leading gaseous ring 10, connecting pipe 11 link up with fixed pipe 12 mutually, and then make fixed pipe 12 can spout inert gas, when the metal particle blowout, it is rotatory to drive turning block 5 through power component 6, then turning block 5 can drive its inside fixed pipe 12 and rotate, and make fixed pipe 12 when spouting inert gas, can be rotatory round ejection of compact shower nozzle 4, make the gas flow direction around ejection of compact shower nozzle 4 bottom more even, metal particle can evenly disperse when guaranteeing the blowout, can not incline to one side. The whole printing and processing process is carried out in the shell 1 which is full of inert gas protection, so that the metal powder is prevented from reacting with active gas at high temperature and even exploding, and the safety of the processing process is ensured. When the metal particle atomizing dispersion scope is adjusted to needs, drive rolling bearing 131 up-and-down motion through electric lift rod 132, rolling bearing 131 drives fixed pipe 12 through pull rod 133 and rotates then, makes the export of fixed pipe 12 bottom incline, and then can change gaseous blowout direction for gas flow direction and 4 contained angles of ejection of compact shower nozzle change, thereby can adjust the atomizing scope when metal particle spouts as required, easy operation. The bottom of the inner wall of the shell 1 is provided with a manufacturing panel, hot melt materials in the discharging spray head 4 are extruded from the discharging spray head 4 and then deposited on the manufacturing panel, after the previous layer of materials are solidified, the hot melt materials are continuously extruded from the discharging spray head 4 onto the previous layer of solidified materials, and an entity is manufactured through layer-by-layer printing. The connection mode of the manufacturing panel and the discharging collision head 4 can set the manufacturing panel and the discharging collision head 4 to move relatively in three dimensions according to the prior art, the prior art is mature, and the detailed description is omitted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a metal 3D printer with atomizing device which characterized in that: the cleaning device comprises a shell (1), wherein a fixed rod (2) is horizontally arranged on the inner wall of the shell (1), a sliding plate (3) is connected onto the fixed rod (2) in a sliding manner, a discharging spray nozzle (4) is vertically arranged on the side wall of the sliding plate (3), the side wall of the discharging spray nozzle (4) is connected with a rotating block (5) in a surrounding and rotating manner, a power assembly (6) is installed on the outer wall of the top of the rotating block (5), the top of the power assembly (6) and the side wall of the sliding plate (3) are fixed with each other, two feeding pipes (7) are symmetrically connected to the side wall of the discharging spray nozzle (4) at the upper end of the sliding plate (3), a cleaning assembly (8) penetrates through the inside of the top end of the discharging spray nozzle (4), a power motor (9) is arranged on one side of the, the top of turning block (5) is connected with inside hollow air ring (10), encircle on the lateral wall of air ring (10) and be connected with a plurality of connecting pipes (11), the equal fixedly connected with fixed pipe (12) in bottom of every connecting pipe (11), the internally mounted of turning block (5) has adjusting part (13), adjusting part (13) rotates with the lateral wall of fixed pipe (12) and is connected, the upper end lateral wall of air ring (10) encircles and rotates and is connected with go-between (14) that link up mutually, the outer wall of go-between (14) is provided with a plurality of air ducts (15) that link up mutually, air duct (15) link up mutually with connecting pipe (11) through air ring (10).

2. The metal 3D printer with the atomizing device as set forth in claim 1, wherein: the power assembly (6) comprises a fixing ring (601) and a driving motor (602), the fixing ring (601) is fixed on the side wall of the upper end of the rotating block (5) in a surrounding mode, the driving motor (602) is fixedly connected with the side wall of the sliding plate (3), an output shaft of the driving motor (602) is connected with a power gear (603), and the power gear (603) is meshed with a gear on the fixing ring (601).

3. The metal 3D printer with the atomizing device as set forth in claim 1, wherein: the cleaning assembly (8) comprises a rotating pipe (801), the inner wall of the rotating pipe (801) is connected with a central rod (803) in a sliding mode, crushing pieces (804) are fixedly arranged on the outer walls of the bottom ends of the central rod (803) and the rotating pipe (801) in a surrounding mode, the top of the central rod (803) is connected with a telescopic rod (805) fixed to the side wall of the sliding plate (3) in a rotating mode, the rotating pipe (801) is connected with the inner wall of the discharging spray nozzle (4) in a rotating mode through a bearing, and the output shaft of the power motor (9) is connected with a connecting toothed ring (802) sleeved at the lower end of the central rod (803).

4. The metal 3D printer with the atomizing device as set forth in claim 1, wherein: adjusting part (13) include rolling bearing (131) and pull rod (133), the bottom of rolling bearing (131) is encircleed to rotate and is connected with a plurality of electric lift pole (132), electric lift pole (132) are fixed mutually with the inner wall of turning block (5), the both ends of pull rod (133) all rotate with the lateral wall of rolling bearing (131) and fixed pipe (12) respectively through axis of rotation (134) and are connected.

5. The metal 3D printer with the atomizing device as set forth in claim 1, wherein: the side wall of the bottom end of the air guide ring (10) is fixedly connected with the rotating block (5), and the air guide ring (10) is rotatably connected with the discharging spray head (4) through a bearing.

6. The metal 3D printer with the atomizing device as set forth in claim 1, wherein: the rotating block (5) is cylindrical, a plurality of grooves are formed in the positions, corresponding to the fixed pipes (12), of the outer wall of the rotating block (5) in a surrounding mode, and the outer wall of the bottom end of each fixed pipe (12) is rotatably connected with the inner wall of each groove.