CN216683359U - Shower nozzle heat abstractor of 3D printer - Google Patents

Abstract

The utility model provides a spray head heat dissipation device of a 3D printer, wherein the printer spray head comprises a spray head assembly, a flow guide cover sleeved on the spray head assembly and a heat radiator arranged on one side of the flow guide cover, wherein the flow guide cover is in a shape of Chinese character 'Wu', and comprises a horizontal flow guide frame and an inclined flow guide frame which are mutually communicated, the horizontal flow guide frame is in a cuboid structure, through holes are formed in the upper part and the lower part of the horizontal flow guide frame, a shell of the spray head assembly sequentially penetrates through the through holes to be fixed in the horizontal flow guide frame, the inclined flow guide frame is arranged on one side of the horizontal flow guide frame, and the inclined flow guide frame extends downwards and is gradually close to a nozzle of the spray head assembly; the radiator is arranged on the other side of the horizontal flow guide frame. Compared with the traditional mode of respectively radiating the shell and the nozzle by utilizing two radiators, the device is simpler in structure, and one radiator is saved.

Description

Shower nozzle heat abstractor of 3D printer

Technical Field

The utility model relates to the field of 3D printing, in particular to a spray head heat dissipation device of a 3D printer.

Background

FDM is a shorthand form of "Fused Deposition Modeling", that is, Fused Deposition Modeling, and is popular in the art, in which a material is melted into a liquid state by high temperature, extruded by a print head, then solidified, and finally arranged in a three-dimensional space to form a three-dimensional object. In the printing process, the shell of the printer nozzle and the nozzle are required to be continuously radiated to prevent thermal damage to other mechanisms and to cool the printing wire. A common way of dissipating heat is to provide heat sinks at the housing and at the nozzle head, respectively, but this structure is relatively complicated. Therefore, it is an urgent need to solve the problem of providing a simple-structure heat dissipation device for a 3D printer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a spray head heat dissipation device of a 3D printer.

The technical scheme of the utility model is as follows: a spray head heat dissipation device of a 3D printer comprises a spray head assembly, a flow guide cover and a heat radiator, wherein the flow guide cover is sleeved on the spray head assembly, the heat radiator is arranged on one side of the flow guide cover, the flow guide cover is in a shape of Chinese character Wu, and comprises a horizontal flow guide frame and an inclined flow guide frame which are mutually communicated, the horizontal flow guide frame is in a cuboid structure, through holes are formed in the upper part and the lower part of the horizontal flow guide frame, a shell of the spray head assembly sequentially penetrates through the through holes to be fixed in the horizontal flow guide frame, the inclined flow guide frame is installed on one side of the horizontal flow guide frame, extends downwards and is gradually close to a spray nozzle of the spray head assembly; the radiator is arranged on the other side of the horizontal flow guide frame.

Preferably, the horizontal backflow frame and the inclined flow guide frame are connected through a buckle.

Preferably, the flow channel of the inclined flow guide frame is gradually narrowed along the air outlet.

Preferably, the heat sink is a fan.

Preferably, the showerhead assembly further comprises:

a connection pipe disposed inside the case, into which a printing wire is inserted;

the upper half part of the throat pipe is positioned in the shell and is abutted against the bottom of the connecting pipe and communicated with the connecting pipe, printing wires penetrate through the connecting pipe and then enter the throat pipe, and the lower end of the throat pipe extends out of the shell;

the lower end of the throat pipe is inserted into the heating block, and the upper end of the nozzle is communicated with the bottom of the throat pipe and inserted into the heating block.

Preferably, the outer portion of the housing is threaded.

The technical scheme has the following advantages or beneficial effects: in the shower nozzle heat abstractor of above-mentioned 3D printer, utilize a radiator just can realize dispelling the heat simultaneously to the casing and the nozzle of shower nozzle subassembly, dispel the heat to the casing and prevent to print the silk material and advance a silk effect in the choke too early softening influence, dispel the heat to the nozzle and cool off shower nozzle subassembly spun printing silk, compare in the traditional mode that utilizes two radiators to carry out the heat dissipation to casing, nozzle respectively, above-mentioned device structure is simpler, has practiced thrift a radiator. In addition, the air outlet of the inclined flow guide frame is relatively narrow, so that the convergence of air flow is facilitated, sufficient air flow is guaranteed to be accurately blown to the nozzle, and heat dissipation is facilitated

Drawings

Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are, however, to be regarded as illustrative and explanatory only and are not restrictive of the scope of the utility model.

Fig. 1 is a schematic overall structure diagram of a nozzle heat dissipation device of a 3D printer according to the present invention;

fig. 2 is a right side view of a head heat sink of a 3D printer according to the present invention;

fig. 3 is a schematic structural diagram of a nozzle assembly in a nozzle heat dissipation device of a 3D printer according to the present invention;

FIG. 4 is a cross-sectional view of a 3D printer head heat sink of the present invention taken along the direction A-A;

fig. 5 is a schematic structural view of a dome in a head heat dissipation device of a 3D printer according to the present invention;

fig. 6 is a bottom view of a dome in a nozzle heat sink of a 3D printer according to the present invention;

in the drawings: 1. a showerhead assembly; 11. a housing; 12. a connecting pipe; 13. a throat; 14. a heating block; 15. a nozzle; 16. a heating rod; 2. a pod; 21. a horizontal flow guiding frame; 211. a through hole; 22. inclining the flow guide frame; 221. an air outlet; 3. a heat sink.

Detailed Description

The following describes a 3D printer head heat dissipation device in detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Meanwhile, the terms "first", "second", etc. are merely used for distinguishing names of various components, and have no primary and secondary relationship, so that the present invention is not to be construed as limited.

As shown in fig. 1 and 2, a heat dissipation device for a nozzle of a 3D printer includes:

the spray head assembly 1 at least comprises a spray head and a spray nozzle 15 arranged at the bottom of the spray head and is used for realizing a printing function;

the air guide sleeve 2 is sleeved on the spray head assembly 1 and used for guiding airflow for radiating the shell 11 of the spray head assembly 1 to the spray nozzle 15 at the bottom of the spray head assembly 1 and radiating the airflow at the spray nozzle 15;

and the radiator 3 is arranged on one side of the air guide sleeve 2 and is used for conveying airflow to the air guide sleeve 2.

Specifically, when the nozzle assembly 1 is in operation, the radiator 3 is started to deliver normal-temperature air flow to the air guide sleeve 2, and the air flow passes through the housing 11 and then blows to the nozzle 15 to cool the nozzle 15. Through above-mentioned structure, utilize a radiator 3 just can realize dispelling the heat simultaneously to shower nozzle subassembly 1's casing 11 and nozzle 15, dispel the heat to casing 11 and prevent to print the silk material and soften the influence into the silk effect too early in the choke, dispel the heat to nozzle 15 and cool off shower nozzle subassembly 1 spun printing silk, compare in the traditional mode that utilizes two radiators 3 to dispel the heat to casing 11, nozzle 15 respectively, above-mentioned device structure is simpler, has practiced thrift a radiator 3.

Further, as shown in fig. 3 and 4, the head assembly 1 includes:

a housing 11;

a connection pipe 12 disposed inside the case 11, the printing wire being inserted into the connection pipe 12;

the upper half part of the throat 13 is positioned in the shell 11 and is abutted against the bottom of the connecting pipe 12 and communicated with the connecting pipe 12, printing wires pass through the connecting pipe 12 and then enter the throat 13, and the lower end of the throat 13 extends out of the shell 11; a heating block 14, wherein the lower end of the throat 13 is inserted into the heating block 14;

a nozzle 15 communicating with the bottom of the throat 13, and the nozzle 15 is inserted into the heating block 14.

Specifically, the wire feeding power assembly continuously conveys printing wires into the connecting pipe 12, the printing wires pass through the throat 13, are melted under the heating action of the heating block 14 and enter the nozzle 15, and are printed on the working platform through the nozzle 15, so that 3D printing is realized. In addition, the outside of the shell 11 is threaded to enlarge the outer surface, facilitate heat dissipation and prevent damage to the upper end screw feeding mechanism.

Further, the showerhead assembly 1 further includes a heating rod 16, and the heating rod 16 is communicated with the heating block 14 to heat the heating block 14.

Further, as shown in fig. 5 and 6, the pod 2 is shaped like a "chinese character" and specifically, the pod 2 includes:

the horizontal flow guide frame 21 is of a cuboid structure, through holes 211 are formed in the upper portion and the lower portion of the horizontal flow guide frame 21, the shell 11 of the spray head assembly 1 penetrates through the upper through hole 211 and the lower through hole 211 to be clamped in the horizontal flow guide frame 21, and airflow passes through the horizontal flow guide frame 21 to dissipate heat of the shell 11;

the inclined guide frame 22 is installed on one side of the horizontal guide frame 21 and communicated with the horizontal guide frame 21, extends downwards and inclines along the position close to the nozzle 15, and airflow of the horizontal backflow frame enters the inclined backflow frame and then blows towards the nozzle 15.

Further, the horizontal backflow frame and the inclined flow guide frame 22 are connected through a buckle.

Further, the flow channel of the inclined flow guiding frame 22 gradually narrows along the air outlet 221, so that the air outlet 221 of the inclined flow guiding frame 22 is relatively narrow, which is beneficial to convergence of air flow, and ensures that sufficient air flow is accurately blown to the nozzle 15.

Further, the heat sink 3 is installed at the other side of the horizontal guide frame 21 to blow cooling air into the horizontal guide frame 21. It is worth pointing out that the heat sink 3 may be a fan.

In the shower nozzle heat abstractor of above-mentioned 3D printer, utilize a radiator 3 just can realize dispelling the heat simultaneously to shower nozzle subassembly 1's casing 11 and nozzle 15, dispel the heat to casing 11 and prevent to print the silk material and advance a silk effect in the too early softening influence of choke, dispel the heat to nozzle 15 and cool off shower nozzle subassembly 1 spun printing silk, compare in traditional two radiators 3 of utilization respectively to casing 11, nozzle 15 carries out radiating mode, the above-mentioned device structure is simpler, a radiator 3 has been practiced thrift. In addition, the air outlet 221 of the inclined flow guide frame 22 is relatively narrow, so that the convergence of air flow is facilitated, sufficient air flow is guaranteed to be accurately blown to the nozzle 15, and heat dissipation is facilitated.

Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the utility model. Any and all equivalent ranges and contents within the scope of the claims should be considered to be within the intent and scope of the present invention.

Claims (6)

1. The utility model provides a shower nozzle heat abstractor of 3D printer, its characterized in that, printer nozzle includes shower nozzle subassembly (1), cover establishes kuppe (2) on shower nozzle subassembly (1) and sets up radiator (3) in kuppe (2) one side, wherein, kuppe (2) are "chinese character thin" form, including horizontal water conservancy diversion frame (21) and the slope water conservancy diversion frame (22) of mutual UNICOM, horizontal water conservancy diversion frame (21) are the cuboid structure, and through-hole (211) have all been seted up to top and below, casing (11) of shower nozzle subassembly (1) pass in proper order through-hole (211) are fixed in horizontal water conservancy diversion frame (21), slope water conservancy diversion frame (22) are installed in one side of horizontal water conservancy diversion frame (21), its downwardly extending just is close to gradually nozzle (15) department of shower nozzle subassembly (1); the radiator (3) is arranged on the other side of the horizontal flow guide frame (21).

2. The nozzle heat sink of 3D printer according to claim 1, wherein the horizontal backflow frame and the inclined diversion frame (22) are connected by a snap fit.

3. The nozzle heat dissipation device of a 3D printer according to claim 1, wherein the flow channel of the inclined flow guiding frame (22) is gradually narrowed along the air outlet (221).

4. The nozzle heat sink of a 3D printer according to claim 1, wherein the heat sink (3) is a fan.

5. The nozzle heat sink of a 3D printer according to claim 1, wherein the nozzle assembly (1) further comprises:

a connection tube (12) placed inside the housing (11) and into which a printing filament is inserted;

the upper half part of the throat (13) is positioned in the shell (11), abuts against the bottom of the connecting pipe (12) and is communicated with the connecting pipe (12), printing wires penetrate through the connecting pipe (12) and then enter the throat (13), and the lower end of the throat (13) extends out of the shell (11);

the lower end of the throat pipe (13) is inserted into the heating block (14), and the upper end of the nozzle (15) is communicated with the bottom of the throat pipe (13) and inserted into the heating block (14).

6. The nozzle heat sink of a 3D printer according to claim 5, wherein the exterior of the housing (11) is threaded.

Images