CN214645928U

CN214645928U - 3D printer beats printer head with high flow

Info

Publication number: CN214645928U
Application number: CN202120732469.XU
Authority: CN
Inventors: 吴进; 万东东; 刘伟
Original assignee: Jiangsu Ruilisi 3d Technology Co ltd
Current assignee: Jiangsu Ruilisi 3d Technology Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-09
Anticipated expiration: 2031-04-12

Abstract

The utility model discloses a 3D printer beats printer head with high flow, including radiator, choke, heating piece and nozzle, the choke links to each other with feedstock channel and nozzle, the upper end of choke with the radiator links to each other, the lower extreme of choke with the heating piece links to each other, the bottom of choke is connected with the capillary, the capillary with the nozzle adopts welding sealing to connect. The utility model discloses a beat the choke and the nozzle sealing connection of printer head, the condition that printing consumables leaked the material can not appear printing the in-process.

Description

3D printer beats printer head with high flow

Technical Field

The utility model relates to a 3D prints the field, and more specifically the high flow beats printer head for 3D printer that says so.

Background

The basic principle of the FDM-level 3D printer is that a motor drives an extrusion wheel, consumables are fed in a filament shape, pass through a radiator and a throat, are heated and melted 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 to finally form a real object part.

The printing head part comprises a radiator, a throat pipe, a heating block and a nozzle, wherein the lower end of the throat pipe is generally connected with the heating block to transfer heat to printing consumables. The upper end of the throat pipe is connected with the radiator, heat is transmitted to the radiator and dissipated through the fan, and internal consumable materials are prevented from softening and blocking materials. The bottom of the throat pipe is connected with the nozzle, and printing consumables enter the nozzle after passing through the throat pipe. However, the bottom of the throat pipe is generally directly inserted into the nozzle in the prior art, the sealing performance of the joint of the throat pipe and the nozzle is not strong, and the situation of material leakage of consumable materials can occur in the printing process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 3D printer beats printer head with high flow, the utility model discloses a beat printer head's choke and nozzle sealing connection, the condition that printing consumables leaked the material can not appear printing the in-process.

The technical scheme is as follows:

the utility model provides a 3D printer is with high flow beats printer head, includes radiator, choke, heating block and nozzle, the choke links to each other with feedstock channel and nozzle, the upper end of choke with the radiator links to each other, the lower extreme of choke with the heating block links to each other, the bottom of choke is connected with the capillary, the capillary with the nozzle adopts welding sealing connection.

Further, the bottom of the capillary tube is positioned inside the heating block, and the height of the heating block is 15mm-60 mm.

Furthermore, a connecting assembly is arranged on the heat dissipation body, and the heat dissipation body is connected with the throat pipe through the connecting assembly.

Furthermore, coupling assembling includes first connecting piece and second connecting piece, first connecting piece with the second connecting piece links to each other, the second connecting piece is located first connecting piece with between the lateral wall of choke, first connecting piece pass through the second connecting piece to the effort is applyed to the choke.

Furthermore, the second connecting piece is provided with a first side face and a second side face which are oppositely arranged, the first connecting piece is connected with the first side face, and the second side face is tightly attached to the side wall of the throat pipe.

Furthermore, a connecting hole is formed in the second connecting piece, and the bottom of the first connecting piece is located in the connecting hole.

Furthermore, an accommodating cavity is formed in the heat radiating body, and the second connecting piece is accommodated in the accommodating cavity.

Furthermore, a threaded hole is formed in the side wall of the heat radiation body, the threaded hole is communicated with the containing cavity, the first connecting piece is in threaded connection with the threaded hole, and the bottom of the first connecting piece penetrates through the threaded hole and then is connected with the second connecting piece.

Further, the first connecting piece is a locking screw, and the second connecting piece is a fastening pin.

The top of the heat radiation body is provided with an adapter, and the adapter is connected with the heat radiation body.

The advantages or principles of the invention are explained below:

1. the utility model discloses a high flow beats printer head and is provided with the capillary bottom the choke, and the capillary adopts welding sealing connection with the nozzle, has promoted the joint strength and the leakproofness of capillary and nozzle, and the junction of choke and nozzle does not have leak passage, and the phenomenon that printing consumables leaked the material can not appear in the printing process.

2. The utility model sets the length of the heating block to 15mm-60 mm. Preferably, the length of heating block is 22mm, has lengthened the length of printing consumptive material melting section, and the extrusion capacity of consumptive material increases in the unit interval, has satisfied large-traffic printing demand.

Drawings

FIG. 1 is a perspective view of a high flow printhead;

FIG. 2 is a front view of a high flow printhead;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

description of reference numerals:

10. a heat sink; 20. a throat; 30. a heating block; 40. a nozzle; 21. a capillary tube; 50. a connecting assembly; 51. a first connecting member; 52. a second connecting member; 521. a first side surface; 522. a second side surface; 523. connecting holes; 11. a threaded hole; 60. an adapter; 12. a heat dissipation fin.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "center", "inner", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

As shown in fig. 1 to 3, the present embodiment discloses a high-flow printhead for a 3D printer, including a heat sink 10, a throat 20, a heating block 30, and a nozzle 40, wherein a feeding channel is disposed in the heat sink, the throat 20 is connected to the feeding channel and the nozzle 40, an upper end of the throat 20 is connected to the heat sink 10, and a lower end of the throat 20 is connected to the heating block 30. A heating rod is provided in the heating block 30, and heating is performed by the heating rod. The printing consumables of the 3D printer enter through the feeding channel, pass through the throat pipe 20, are heated and melted by the heating block 30 and then are sprayed out through the nozzle 40, and printing is completed.

The bottom of the throat pipe 20 is connected with a capillary 21, and the capillary 21 is connected with the nozzle 40 in a welding and sealing manner. Before the capillary 21 is welded to the nozzle 40, it is necessary to insert the bottom of the capillary 21 into the nozzle 40, and then laser welding is performed at the joint of the capillary 21 and the nozzle 40. After laser welding, the throat pipe 20 and the nozzle 40 form an integrated structure, the connection strength and the sealing performance of the throat pipe 20 and the nozzle 40 are improved, a leakage channel does not exist at the joint of the throat pipe 20 and the nozzle 40, the phenomenon of material leakage of printing consumables can not occur in the printing process, and the reliability of the printing process is greatly improved.

The material of the nozzle 40 of the present embodiment may be brass, red copper, steel, or the like.

The bottom of the capillary tube 21 is located inside the heating block 30, the height of the heating block 30 is 15mm-60mm, and preferably, the height of the heating block 30 is 22 mm. The height of heating piece 30 is passed through to this embodiment to lengthened the purpose of printing consumables melting section, the printing consumables extrusion capacity increase of unit interval has satisfied large-traffic printing demand, and printing speed is faster, and printing efficiency is higher.

The lower end of the throat pipe 20 of this embodiment is screwed to the heating block 30. In order to connect the heat dissipation body 10 and the throat 20, a connection assembly 50 is arranged on the heat dissipation body 10, and the heat dissipation body 10 is connected with the throat 20 through the connection assembly 50.

Preferably, the connecting assembly 50 includes a first connecting member 51 and a second connecting member 52, the first connecting member 51 is connected to the second connecting member 52, the second connecting member 52 is located between the first connecting member 51 and the sidewall of the throat 20, and the first connecting member 51 applies a force to the throat 20 through the second connecting member 52.

Further, the second connecting member 52 has a first side 521 and a second side 522 which are oppositely arranged, the first connecting member 51 is connected with the first side 521, and the second side 522 is closely attached to the side wall of the throat 20. The first connector 51 applies a force to the second connector 52 through the first side 521, and the second connector 52 transmits the force to the throat 20, so that the throat 20 and the heating body 10 are fixedly connected.

In order to realize the connection between the first connecting piece 51 and the second connecting piece 52, a connecting hole 523 is provided on the second connecting piece 52, and the bottom of the first connecting piece 51 is located in the connecting hole 523. In order to fix the second connecting element 52 to the heating body 10, an accommodating cavity is provided in the heating body 10, in which the second connecting element 52 is accommodated.

The side wall of the heat radiation body 10 is provided with a threaded hole 11, the threaded hole 11 is communicated with the containing cavity, the first connecting piece 51 is in threaded connection with the threaded hole 11, and the bottom of the first connecting piece 51 penetrates through the threaded hole 11 and then is connected with the second connecting piece 52. Preferably, the first connecting member 51 is a locking screw, and the second connecting member 52 is a fastening pin.

When the throat pipe 20 is connected with the radiator 10, the locking screw passes through the threaded hole 11 and then is connected with the fastening pin, the fastening pin is additionally arranged between the throat pipe 20 and the locking screw, the locking screw directly acts on the fastening pin, and the fastening pin transmits locking force to the throat pipe 20, so that the throat pipe 20 is locked. The embodiment avoids the direct contact between the locking screw and the throat pipe 20, can effectively protect the throat pipe 20 and prevent the locking screw from damaging the throat pipe 20.

In the embodiment, the throat 20 and the radiator 10 are locked and fixed by the locking screw and the fastening pin, and the locking and fixing mode facilitates the detachment of the throat 20, so that the detachment of the throat 20 is simpler and more convenient.

The top of the heat sink 10 is provided with an adapter 60, and the adapter 60 is connected with the heat sink 10. In practical applications, different adapters 60 may be connected to different printer mechanisms to enable the high-flow printhead to adapt to different models of printers.

The heat dissipation fin 12 is arranged on the heat dissipation body 10, and heat dissipation is performed through the heat dissipation fin 12.

The embodiment of the present invention is not limited to this, according to the above-mentioned content of the present invention, the common technical knowledge and the conventional means in the field are utilized, without departing from the basic technical idea of the present invention, the present invention can also make other modifications, replacements or combinations in various forms, all falling within the protection scope of the present invention.

Claims

1. The utility model provides a 3D printer is with high flow beats printer head, includes radiator, choke, heating block and nozzle, the choke links to each other with feedstock channel and nozzle, the upper end of choke with the radiator links to each other, the lower extreme of choke with the heating block links to each other, its characterized in that, the bottom of choke is connected with the capillary, the capillary with the nozzle adopts welding sealing connection.

2. The high flow printhead for a 3D printer according to claim 1, wherein the bottom of the capillary tube is located inside the heater block, and the height of the heater block is 15mm to 60 mm.

3. The high-flow printing head for the 3D printer according to any one of claims 1 or 2, wherein a connecting assembly is arranged on the heat dissipation body, and the heat dissipation body is connected with the throat pipe through the connecting assembly.

4. The high flow printhead for a 3D printer of claim 3, wherein the connection assembly includes a first connector and a second connector, the first connector being connected to the second connector, the second connector being positioned between the first connector and the sidewall of the throat, the first connector applying a force to the throat through the second connector.

5. The high flow printhead for a 3D printer of claim 4, wherein the second connector has a first side and a second side opposite to each other, the first connector being connected to the first side, the second side being in close contact with a side wall of the throat.

6. The high flow printhead for a 3D printer according to claim 4, wherein the second connecting member has a connecting hole therein, and a bottom of the first connecting member is located in the connecting hole.

7. The high-flow printing head for the 3D printer according to claim 4, wherein an accommodating cavity is formed in the heat dissipation body, and the second connecting member is accommodated in the accommodating cavity.

8. The high-flow printing head for the 3D printer according to claim 7, wherein a threaded hole is formed in a side wall of the heat radiating body, the threaded hole is communicated with the accommodating cavity, the first connecting piece is in threaded connection with the threaded hole, and the bottom of the first connecting piece is connected with the second connecting piece after penetrating through the threaded hole.

9. The high flow printhead for a 3D printer of claim 8, wherein the first connector is a locking screw and the second connector is a fastening pin.

10. The high-flow printing head for the 3D printer according to claim 1, wherein an adapter is arranged on the top of the heat dissipation body, and the adapter is connected with the heat dissipation body.