CN209813077U

CN209813077U - Double-nozzle 3D printer

Info

Publication number: CN209813077U
Application number: CN201920538290.3U
Authority: CN
Inventors: 葛正浩; 丁瑾; 柴德敏; 王少华
Original assignee: Shaanxi University of Science and Technology
Current assignee: Shaanxi University of Science and Technology
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2019-12-20
Anticipated expiration: 2029-04-19

Abstract

The utility model discloses a double-nozzle 3D printer, which realizes double-nozzle printing by the transverse and longitudinal movement of two groups of extrusion devices on a horizontal plane, the vertical up-and-down movement of a workbench and the movement coordination of a nozzle and the workbench; the printer adopts an extrusion device based on the extrusion principle, and compared with the traditional 3D printer, the used raw material reduces the step of extruding granular materials into filamentous materials, reduces the energy consumption in the 3D printing process, and saves the printing time and the printing cost; two sets of extrusion device can use two kinds of materials as printing the former material, and the design uses the dual spray, can use the bimaterial to accomplish the printing task, and this kind of mode has enlarged the application scope who prints the finished product, makes the finished product kind of printing abundanter various.

Description

Double-nozzle 3D printer

Technical Field

The utility model belongs to the 3D printing apparatus field, concretely relates to dual spray 3D printer.

Background

The existing 3D printer is based on a fused deposition technology, the raw material preparation of the existing 3D printer needs to extrude granules into filamentous materials, and in a working state, the single-head 3D printer needs to stack the fused wires layer by layer, so that the printing cost is high. Because only one wire can be used, the limitation on the printed finished product is large.

In summary, it is desired to develop a method for directly using granules as raw materials of a 3D printer, and a dual nozzle is designed to be used, so that a printing task can be completed by using dual materials. Therefore, the cost of the printing process is reduced, and the application range of the printed finished product is expanded.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough of prior art, the utility model aims to provide a dual spray 3D printer based on extrude the principle reduces the energy consumption, practices thrift and prints the cost, enlarges and prints the scope.

In order to achieve the above object, the utility model adopts the following technical scheme:

a double-nozzle 3D printer comprises an extrusion device, an extrusion device moving part, a machine body, a workbench moving part and a 3D printer shell;

the two groups of extrusion devices are arranged on the extrusion device moving parts, the extrusion devices move in the horizontal plane through the extrusion device moving parts, and the extrusion device moving parts are connected with the machine body through corner pieces; the workbench is arranged on a workbench moving part, the workbench can vertically move up and down through the workbench moving part, the workbench moving part is arranged in the machine body through a linear bearing and a vertical support frame, and a shell of the 3D printer is arranged outside the machine body;

the printing sample is placed on the workbench, and the workbench moves up and down in the vertical direction through the transverse and longitudinal movement of the two groups of extrusion devices on the horizontal plane, so that the double-nozzle printing is realized through the movable matching of the spray head and the workbench.

Further, the extrusion device comprises a motor, a speed reducer, a hopper, a charging barrel, a screw, a heating ring and a nozzle;

the screw rod is arranged in the material cylinder and extends to the nozzle at the bottom of the material cylinder, the heating ring is arranged outside the material cylinder, the motor is connected with the screw rod after being connected with the speed reducer, and the hopper is arranged on one side of the material cylinder and is communicated with the material cylinder through a material conveying pipe.

Further, the workbench is formed by connecting a polished rod base plate, a screw rod base plate and a workbench panel through bolts, wherein the workbench panel is positioned at the uppermost surface of the polished rod base plate, the screw rod base plate and the workbench panel;

the worktable moving part comprises a polish rod and lead screws which are vertically arranged, the two lead screws are connected with the machine body through vertical bearing seats and distributed on two sides of the worktable, the polish rod is connected with the machine body through vertical supporting frames and distributed around the worktable, and the motor is connected with the lead screws through a coupler to drive the lead screws to rotate; the polished rod base plate is provided with a hole for the polished rod to pass through, the linear bearing is installed at the position of the hole, the polished rod is connected with the polished rod base plate through the linear bearing, and the screw rod base plate is fixed with a screw rod nut and connected with the screw rod base plate through the nut.

Further, extrusion device moving part comprises two sets of linear modules, and first linear module transversely sets up and installs on the organism, and the second linear module vertically sets up and installs on first linear module, drives the second linear module at the horizontal plane through first linear module and follows lateral shifting, and two sets of extrusion device pass through extruder support mounting respectively on the second linear module, and the second linear module drive extrusion device is at the horizontal plane along longitudinal shifting.

Furthermore, a fan is respectively arranged at the tail end of the extruder bracket.

Further, the machine body comprises a bottom support frame, a top support frame and a vertical support frame, the bottom support frame and the top support frame are connected through the vertical support frame, and the top support frame is connected with the extrusion device moving part.

Furthermore, a motor fixing and supporting frame is arranged at the bottom end close to the vertical supporting frame, motor supporting frames are connected to two sides of the lower end of the motor fixing and supporting frame, and a motor used for driving a lead screw is installed on the motor supporting frames.

The utility model has the advantages that:

the utility model discloses a dual spray 3D printer, two sets of extrusion devices are installed on extrusion device moving part, and the printing sample is laid on the workstation, through the horizontal and longitudinal movement of two sets of extrusion devices on the horizontal plane, the workstation reciprocates in the vertical direction, through the removal cooperation of shower nozzle and workstation, realizes dual spray printing; the printer adopts extrusion device based on the principle of extruding, and compared with the traditional 3D printer, the used raw material reduces the step of extruding the granules into filiform materials, reduces the energy consumption of the 3D printing process, and saves the printing time and the printing cost.

In addition, when this printer accomplished the print task, two sets of extrusion device can use two kinds of materials as printing the former material, and the design uses the dual spray, can use the dual material to accomplish the print task, and this kind of mode has enlarged the application scope of printing the finished product, makes the finished product kind of printing abundanter various.

Drawings

FIG. 1 is the overall structure diagram of the present invention

FIG. 2 is a schematic view of an extrusion apparatus

FIG. 3 is a sectional view of an extrusion apparatus

FIG. 4 is a cross-sectional view of a cartridge

In the figure: 1. a motor; 2. a speed reducer; 3. a charging barrel connecting frame; 4. a hopper; 5. a hexagon bolt; 6. a charging barrel; 7. heating a ring; 8. a screw; 9. a charging barrel connecting plate; 10. a delivery pipe; 11. a material melting pipe; 12. a flange; 13. a nozzle; 14. a fan; 15. a first set of linear modules; 16. a connecting rod; 17. a coupling; 18. a support platform; 19. a bottom support frame; 20. a vertical support frame; 21. a top support frame; 22. the motor fixes the supporting frame; 23. a corner fitting; 24. a polish rod backing plate; 25. a screw base plate; 26. a table top plate; 27. a bolt; 28. a lead screw; 29. a polish rod; 30. a vertical bearing seat; 31. a 3D printer housing; 32. a motor support frame; 33. a linear bearing; 34. a second set of linear modules; 35. a lead screw nut; 36. a motor support frame; 37. a vertical support frame.

Detailed Description

The present invention will be described in further detail with reference to the following specific examples, which should not be construed as limiting the invention.

As shown in fig. 1, the utility model discloses a dual spray 3D printer, including extrusion device, extrusion device moving part, organism, workstation moving part and the six parts of 3D printer shell constitute.

The extrusion device is connected with the extrusion device moving part through a supporting platform 18, the extrusion device moving part is connected with the machine body through an angle piece 23, the machine body is connected with the workbench moving part through a linear bearing 33 and a vertical supporting frame 37, and the workbench moving part is connected with the workbench panel 26 through a 25 screw rod base plate and a 24 polished rod base plate.

Be provided with two extrusion device, print the sample and lay on the workstation, extrusion device passes through extrusion device moving part and realizes horizontal and longitudinal movement on the horizontal plane, and the workstation passes through the reciprocating of workstation moving part realization vertical direction, through the removal cooperation of shower nozzle and workstation, realizes that the dual spray prints.

As shown in fig. 2 and 3, the extrusion apparatus includes a motor 1, a decelerator 2, a barrel 6, a screw 8, a heating ring 7, and a nozzle 13. The top motor 1 of the extrusion device is connected with the speed reducer 2 through the hexagon bolts 5, the motor 1 and the speed reducer 2 are connected with the charging barrel 6 through the hexagon bolts 5 on the charging barrel connecting frame 3, the screw rod 8 is arranged in the charging barrel 6, and the heating ring 7 is arranged outside the charging barrel 6.

As shown in fig. 4, the charging barrel 6 is connected with the charging barrel connecting frame 3 through the charging barrel connecting plate 9, the material conveying pipe 10 is communicated with the charging barrel 6 through the charging barrel connecting plate 9, the material melting pipe 11 is connected with the material melting pipe 11 through the flange 12, the screw rod 8 in the charging barrel extends to the nozzle 13 at the bottom of the charging barrel 6, the other end of the charging barrel connecting frame 3 is provided with the feeding port hopper 4 and is communicated with the charging barrel 6, the hopper 4 is connected with the material conveying pipe 10, and the hopper 4 is fixedly connected with the charging barrel connecting frame 3 through the hexagon bolt 5.

Specifically, two identical extrusion devices are respectively mounted on the extrusion device moving part through an extruder support, and two fans 14 are respectively mounted at two ends of the bottom of the extruder support.

The moving parts of the extrusion device are connected by two sets of linear modules through the support platform 18 using hex bolts. Wherein, one side of the first group of linear modules 15 is connected with the first module motor through the motor support frame 32 by using a hexagon bolt, and the first module motor rotates to drive the connecting rod 16 to be connected with the other side of the linear modules 15, so that the lead screw of the first group of linear modules 15 on the other side rotates to drive the second group of linear modules 34 on the first group of linear modules 15 to move. One end of the second group of linear modules 34 is connected with a second module motor, a screw driven by the second module motor rotates, so that an extruding device installed on the screw of the second group of linear modules 34 is driven to move, the upper end of the second group of linear modules 34 is connected with the extruder bracket through the supporting platform 18, and the extruding device is installed on the second group of linear modules 34 through the extruder bracket.

The extruder body is connected by a bottom support 19 to a vertically upwardly disposed support 20, and by top supports 21 on either side. The top support 21 is connected to the extruder moving parts. Near the bottom end of the machine body, another set of motor fixing and supporting frame 22 is connected, and motor supporting frames 36 are connected to two sides of the lower end of the motor fixing and supporting frame 22, and the angle pieces 23 are used for the above fixing and connecting.

The working table is composed of a set of polish rod backing plates 24, screw rod backing plates 25 and a working table panel 26 which are connected through bolts 27, wherein the working table panel 26 is located at the uppermost part of the three.

The moving part of the extrusion device workbench is connected with a screw rod 28 through a coupler 17 by a motor, and the screw rod 28 and the screw rod backing plate 25 are fixed through a screw rod nut 35. The polish rod 29 is fixed around the worktable 26 by a linear bearing 33, and connects the worktable 26, the polish rod pad 24 and the screw pad 25.

Specifically, the worktable moving part connects the screw rod 28 with the machine body through the vertical bearing seat 30, and connects the polish rod 29 around the worktable panel 26 with the machine body through the vertical supporting frame 37 through the top supporting frame 21.

The 3D printer shell 31 is connected with the 3D printer body.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.

Claims

1. The utility model provides a dual spray 3D printer which characterized in that: the extrusion device comprises an extrusion device, an extrusion device moving part, a machine body, a workbench moving part and a 3D printer shell;

2. The dual head 3D printer of claim 1, wherein: the extruding device comprises a motor (1), a speed reducer (2), a hopper (4), a charging barrel (6), a screw (8), a heating ring (7) and a nozzle (13);

screw rod (8) are arranged in feed cylinder (6) and are extended to nozzle (13) department of feed cylinder (6) bottom in, and outside feed cylinder (6) were arranged in to heating collar (7), motor (1) were connected with screw rod (8) after linking to each other with reduction gear (2), hopper (4) set up in feed cylinder (6) one side and put through mutually with feed cylinder (6) through conveying pipeline (10).

3. The dual head 3D printer of claim 1, wherein: the workbench is connected by a polish rod base plate (24), a screw rod base plate (25) and a workbench panel (26) through bolts (27), wherein the workbench panel (26) is positioned at the uppermost surface of the polish rod base plate, the screw rod base plate (25) and the workbench panel (26);

the workbench moving part comprises a polish rod (29) and lead screws (28) which are vertically arranged, the two lead screws (28) are connected with the machine body through vertical bearing seats (30) and distributed on two sides of the workbench, the polish rod (29) is connected with the machine body through vertical supporting frames (37) and distributed around the workbench, and a motor is connected with the lead screws (28) through couplers (17) to drive the lead screws to rotate; the polished rod base plate (24) is provided with a hole for the polished rod to pass through, the linear bearing (33) is installed at the position of the hole, the polished rod (29) is connected with the polished rod base plate (24) through the linear bearing (33), the screw rod base plate (25) is fixedly provided with a screw rod nut (35), and a screw rod (28) is connected with the screw rod base plate (25) through the nut (35).

4. The dual head 3D printer of claim 1, wherein: the extrusion device moving part is composed of two groups of linear modules, a first linear module (15) is transversely arranged and installed on the machine body, a second group of linear modules (34) is longitudinally arranged and installed on the first linear module (15), the second group of linear modules (34) are driven by the first linear module (15) to transversely move on the horizontal plane, the two groups of extrusion devices are respectively installed on the second group of linear modules (34) through the extruder bracket, and the second group of linear modules (34) drive the extrusion devices to longitudinally move on the horizontal plane.

5. The dual head 3D printer of claim 4, wherein: and the tail ends of the extruder brackets are respectively provided with a fan.

6. The dual head 3D printer according to any one of claims 1-5, wherein: the machine body comprises a bottom support frame (19), a top support frame (21) and a vertical support frame (20), the bottom support frame (19) and the top support frame (21) are connected through the vertical support frame (20), and the top support frame (21) is connected with the extrusion device moving part.

7. The dual head 3D printer of claim 6, wherein: a motor fixing and supporting frame (22) is arranged at the bottom end close to the vertical supporting frame (20), motor supporting frames (36) are connected to two sides of the lower end of the motor fixing and supporting frame (22), and a motor used for driving a lead screw (28) is installed on the motor supporting frames (36).