阅读说明：本技术 一种3D打印机用新型Dragon Hotend打印头 (Novel Dragon Hotend printing head for 3D printer ) 是由 刘伟 万东东 吴进 唐庆忱 于 2019-12-16 设计创作，主要内容包括：本发明公开了一种3D打印机用新型Dragon Hotend打印头,包括：连接组件,所述连接组件包括转接头、第一内螺纹孔、转接头锁紧螺丝和卡槽；散热组件,所述散热组件包括上散热块、散热管、散热片、下散热块、散热体和散热翅片；加热组件,所述加热组件包括加热块锁紧螺丝管；喉管上端与散热体过盈配合,下端与熔融管过盈配合,熔融管与散热体螺纹连接,可以现耗材充分散热,避免耗材在喉管中熔化堵料现象,同时喉管壁厚仅0.05-0.1毫米,其隔热效果相比传统打印头效果优良很多,同时采用4根支撑管连接在加热块与散热体之间,较大幅度增加组件的固有刚度,完全杜绝打印头在高速移动打印过程中导致的喉管薄壁断裂现象。(The invention discloses a novel Dragon Hotend printing head for a 3D printer, which comprises: the connecting assembly comprises an adapter, a first internal thread hole, an adapter locking screw and a clamping groove; the radiating assembly comprises an upper radiating block, a radiating pipe, a radiating fin, a lower radiating block, a radiating body and a radiating fin; a heating assembly comprising a heating block locking screw tube; the choke upper end and radiator interference fit, lower extreme and fusion pipe interference fit, fusion pipe and radiator threaded connection, can the consumptive material fully dispel the heat now, avoid the consumptive material to melt putty phenomenon in the choke, the choke wall thickness is only 0.05-0.1 millimeter simultaneously, it is good a lot more than traditional printer head effect to insulate against heat the effect, adopt 4 stay tubes to connect simultaneously between heating block and radiator, the inherent rigidity of great range increase subassembly stops completely to beat printer head and prints the choke thin wall rupture phenomenon that the in-process leads to at high speed removal.)

1. A3D printer is with novel Dragon Hotend's printer head which characterized in that includes:

the connecting assembly (10), the connecting assembly (10) comprises an adapter (11), a first internal threaded hole (12), an adapter locking screw (13) and a clamping groove (14);

the radiating assembly (20) comprises an upper radiating block (21), a radiating pipe (22), a radiating fin (23), a lower radiating block (24), a radiating body (25) and radiating fins (26);

heating element (30), heating element (30) includes heating block locking screw (31), heating rod (32), power cord (33), second internal thread hole (34), heating block (35), third internal thread hole (36), stay tube (37), heating hole (38), locking groove (39) and melting pipe (310), the inside of radiating block (24) is offered quantity and is two following radiating block (24) the central point for second internal thread hole (34) of symmetry center symmetry down, the inside threaded connection of second internal thread hole (34) has heating block locking screw (31), the top of heating block locking screw (31) runs through heating block (35) and radiating block (24) down in proper order and extends to the inside of radiating block (24) down, heating block (35) and radiating block (24) are through heating block locking screw (31) fixed connection down, a third internal threaded hole (36) is formed in the bottom of the heating block (35), a heating hole (38) is formed in one side of the heating block (35), a locking groove (39) is formed in the heating hole (38), a heating rod (32) is arranged in the heating hole (38), and a power line (33) is fixedly connected to one side, far away from the heating block (35), of the heating rod (32);

the printing assembly (40) comprises a connecting pipe (41), a throat pipe (42), a nozzle (43), a spray hole (44) and an external thread (45).

2. The new Dragon Hotend printhead for 3D printer according to claim 1, wherein: the outer side wall of the nozzle (43) is provided with an external thread (45), the external thread (45) is matched with the third internal threaded hole (36), the bottom of the nozzle (43) is provided with a spray hole (44), the top of the spray hole (44) is provided with a melting pipe (310), and the inner side wall of the melting pipe (310) is provided with a throat pipe (42).

3. The new Dragon Hotend printhead for 3D printer according to claim 1, wherein: draw-in groove (14) have been seted up to the inside of adapter (11), the inside sliding connection of draw-in groove (14) has connecting pipe (41), the bottom and the choke (42) of connecting pipe (41) are linked together.

4. The new Dragon Hotend printhead for 3D printer according to claim 1, wherein: the outer side wall of the throat pipe (42) is fixedly connected with a radiator (25), and radiating fins (26) are welded on the outer side wall of the radiator (25).

5. The new Dragon Hotend printhead for 3D printer according to claim 1, wherein: the bottom of adapter (11) is seted up quantity and is two first internal thread hole (12) that the central point that uses adapter (11) is symmetry, the bottom of adapter (11) is provided with radiating block (21), the inside that radiating block (21) extended to first internal thread hole (12) is run through on the top of adapter locking screw (13), the lateral wall and first internal thread hole (12) threaded connection of adapter locking screw (13).

6. The new Dragon Hotend printhead for 3D printer according to claim 1, wherein: go up the bottom fixedly connected with quantity of radiating block (21) and be four evenly distributed's cooling tube (22), the lateral wall welding of cooling tube (22) has fin (23), the bottom welding of cooling tube (22) has radiating block (24) down.

7. The new Dragon Hotend printhead for 3D printer according to claim 1, wherein: the wall thickness of the throat (42) is 0.05-0.1 mm.

8. The new Dragon Hotend printhead for 3D printer according to claim 1, wherein: the bottom end of the lower radiating block (24) is in threaded connection with four supporting pipes (37) which are uniformly distributed, and the bottom ends of the supporting pipes (37) penetrate through the heating block (35) and extend to the inside of the heating block (35).

Technical Field

The invention relates to the technical field of printers, in particular to a novel Dragon Hotend printing head for a 3D printer.

Background

The 3D printing is more and more widely applied in industry, and is more and more favored by users due to the advantages of simple forming, convenient adjustment, low cost, short sample-out period and the like.

The basic principle of the FDM-level 3D printer is that a motor drives an extrusion wheel, consumables are fed in a filamentous mode, pass through a radiator and a throat pipe, are heated and converted into micron-sized filaments at a nozzle, and are stacked, solidified and molded according to the section outline of a 3D model along with the movement of a sprayer, and a real object part is finally formed. Wherein, the heat radiator, the throat, the heating block and the nozzle jointly form a printing head (Hotend).

At present, a throat pipe and a radiator in a traditional printing head are connected through internal threads, and filamentous consumables sequentially pass through the printing head from top to bottom, so that the requirement on heat insulation of the throat pipe is very strict, and if heat cannot be effectively blocked, the consumables are directly melted at the middle lower part of the throat pipe, so that blockage is caused, and printing cannot be performed. Therefore, a novel Dragon Hotend printing head for a 3D printer is provided.

Disclosure of Invention

The invention aims to provide a novel Dragon Hotend printing head for a 3D printer, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a novel Dragon Hotend printhead for a 3D printer, comprising:

the connecting assembly comprises an adapter, a first internal thread hole, an adapter locking screw and a clamping groove;

the radiating assembly comprises an upper radiating block, a radiating pipe, a radiating fin, a lower radiating block, a radiating body and a radiating fin;

the heating component comprises a heating block locking screw, a heating rod, a power line, a second internal thread hole, a heating block, a third internal thread hole, a supporting tube, a heating hole, a locking groove and a melting tube, the lower radiating block is internally provided with two second internal thread holes which are symmetrical by taking the central point of the lower radiating block as a symmetrical center, the inner thread of the second internal thread hole is connected with a heating block locking screw, the top end of the heating block locking screw sequentially penetrates through the heating block and the lower heat dissipation block and extends to the inner part of the lower heat dissipation block, the heating block and the lower radiating block are fixedly connected through a heating block locking screw, a third internal thread hole is arranged at the bottom of the heating block, a heating hole is formed in one side of the heating block, a locking groove is formed in the heating hole, a heating rod is arranged in the heating hole, and a power line is fixedly connected to one side, far away from the heating block, of the heating rod;

the printing component comprises a connecting pipe, a throat pipe, a nozzle, a spray hole and external threads.

As further preferable in the present technical solution: the outer side wall of the nozzle is provided with an external thread, the external thread is matched with the third internal threaded hole, the bottom of the nozzle is provided with a spray hole, the top of the spray hole is provided with a melting pipe, and the inner side wall of the melting pipe is provided with a throat pipe.

As further preferable in the present technical solution: the adapter comprises an adapter body and is characterized in that a clamping groove is formed in the adapter body, a connecting pipe is connected to the inside of the clamping groove in a sliding mode, and the bottom of the connecting pipe is communicated with a throat pipe.

As further preferable in the present technical solution: the outer side wall of the throat pipe is fixedly connected with a radiator, and radiating fins are welded on the outer side wall of the radiator.

As further preferable in the present technical solution: the bottom of adapter is seted up quantity and is two the first internal thread hole that uses the central point of adapter as the symmetry center symmetry, the bottom of adapter is provided with the radiating block, the inside that the radiating block extended to first internal thread hole is run through on the top of adapter locking screw, adapter locking screw's lateral wall and first internal thread hole threaded connection.

As further preferable in the present technical solution: go up the bottom fixedly connected with quantity of radiating block and be four evenly distributed's cooling tube, the lateral wall welding of cooling tube has the fin, the bottom welding of cooling tube has lower radiating block.

As further preferable in the present technical solution: the wall thickness of the throat pipe is 0.05-0.1 mm.

As further preferable in the present technical solution: the bottom threaded connection of lower radiating block has the evenly distributed's that quantity is four stay tubes, the bottom of stay tube all runs through the inside that the heating block extended to the heating block.

Compared with the prior art, the invention has the beneficial effects that: choke upper end and radiator interference fit, lower extreme and fusion pipe interference fit, the fusion pipe links together through screw thread and radiator, can realize the abundant heat dissipation of consumptive material, the consumptive material phenomenon of putty is melted in the choke has been avoided, and simultaneously, the choke wall thickness is only 0.05-0.1 millimeter, it is good a lot of that traditional printer head effect is compared to thermal-insulated effect, and simultaneously, adopt 4 stay tubes to connect between heating block and radiator, great range has increased the inherent rigidity of subassembly, the choke thin wall rupture phenomenon that the printer head leads to at the high-speed removal printing in-process of having stopped completely.

Drawings

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

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a front view of the present invention;

fig. 4 is a side view of the present invention.

In the figure: 10. a connecting assembly; 11. an adapter; 12. a first internally threaded bore; 13. the adapter locking screw; 14. a card slot; 20. a heat dissipating component; 21. an upper heat dissipation block; 22. a radiating pipe; 23. a heat sink; 24. a lower heat dissipation block; 25. a heat sink; 26. a heat dissipating fin; 30. a heating assembly; 31. locking screws of the heating block; 32. a heating rod; 33. a power line; 34. a second internally threaded bore; 35. a heating block; 36. a third internally threaded bore; 37. supporting a tube; 38. heating the hole; 39. a locking groove; 310. a fusion pipe; 40. a printing assembly; 41. connecting pipes; 42. a throat; 43. a nozzle; 44. spraying a hole; 45. and (4) external threads.

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.