CN215283384U

CN215283384U - Shower nozzle device and 3D printer

Info

Publication number: CN215283384U
Application number: CN202120258191.7U
Authority: CN
Inventors: 刘辉林; 唐京科; 陈春; 敖丹军; 杜联星
Original assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Current assignee: Shenzhen Chuangxiang 3D Technology Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-12-24
Anticipated expiration: 2031-01-29

Abstract

The utility model relates to a 3D prints technical field, discloses a shower nozzle device and 3D printer. The nozzle device comprises a throat pipe, a nozzle and a heating block, wherein the heating block is provided with a first fixing hole, and the throat pipe and the nozzle are respectively fixed at two ends of the first fixing hole; the outer side wall of one end, close to the heating block, of the throat pipe is provided with vertical teeth, tooth grooves matched with the vertical teeth are formed in the inner side wall of one end, close to the throat pipe, of the first fixing hole, the vertical teeth are inserted into the tooth grooves, so that the throat pipe is fixed to the first fixing hole, and a gap is formed between the outer side wall of the throat pipe and the inner side wall of the first fixing hole. The utility model discloses a reduce the heat conduction efficiency between heating piece and the choke, increased the radiating efficiency of choke simultaneously, prevent shower nozzle device putty and the inhomogeneous phenomenon of the ejection of compact, improved and printed precision and efficiency.

Description

Shower nozzle device and 3D printer

Technical Field

The utility model relates to a 3D prints technical field, especially relates to a shower nozzle device and 3D printer.

Background

The 3D printing technique is one of rapid prototyping techniques, and is a technique for obtaining a desired model by printing layer by layer on the basis of a digital model file using a bondable material such as plastic or some metal powder. In the conventional FDM3D printer, there is a nozzle heating element, and a heat sink module is disposed on the heating element. Usually, the throat is directly connected with the heating block of the nozzle through threads, the connection method enables the heat conduction between the throat and the heating block to be fast, and the heat dissipation of the throat is blocked. When the throat temperature was higher than preset temperature, the material silk in the throat became half molten state or molten state by solid-state, leaded to the shower nozzle putty this moment easily, phenomenon such as the ejection of compact is inhomogeneous, finally influences printing precision and efficiency.

Accordingly, there is a need for a nozzle device and a 3D printer to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Based on it, an object of the utility model is to provide a shower nozzle device and 3D printer, the utility model discloses a reduce the heat-conduction efficiency between heating piece and the choke, increased the radiating efficiency of choke simultaneously, prevent shower nozzle device putty and the inhomogeneous phenomenon of ejection of compact, improved printing precision and efficiency.

In order to achieve the purpose, the utility model adopts the following technical proposal:

in one aspect, a showerhead apparatus is provided, comprising:

the heating device comprises a throat pipe, a nozzle and a heating block, wherein the heating block is provided with a first fixing hole, and the throat pipe and the nozzle are respectively fixed at two ends of the first fixing hole;

the utility model discloses a heating device, including throat, heating piece, first fixed orifices, throat, vertical tooth, tooth's socket, throat, and the throat is close to be provided with on the lateral wall of heating piece one end and erects the tooth on the lateral wall of throat one end, first fixed orifices is close to be provided with on the inside wall of throat one end with erect the tooth's socket that the tooth matches, erect the tooth peg graft in the tooth's socket, so that the throat is fixed in first fixed orifices, just the lateral wall of throat with be provided with the clearance between the inside wall of first fixed orifices, realized reducing the heat conduction efficiency between heating piece and the throat, increased the radiating efficiency of throat simultaneously, prevent shower nozzle device putty and the inhomogeneous phenomenon of ejection of compact, improved printing precision and efficiency.

As a preferred technical scheme of the spray head device, the spray head device further comprises a heat insulation block, wherein the heat insulation block is arranged in the first fixing hole and is positioned between the throat pipe and the nozzle;

the throat pipe, the heat insulation block and the heating block are provided with material conveying holes which are communicated with each other, so that heat insulation between the nozzle and the throat pipe is realized.

As a preferred technical scheme of the spray head device, the heat insulation block is made of PEEK.

As a preferred technical scheme of the spray head device, the spray head device further comprises a heat dissipation assembly, wherein the heat dissipation assembly is fixed at one end, far away from the heating block, of the throat pipe, and the heat dissipation assembly is used for dissipating heat of the throat pipe.

As an optimal technical scheme of the spray head device, the heat dissipation assembly comprises a heat dissipation block, the heat dissipation block is provided with a second fixing hole, one end of the throat pipe, far away from the heating block, is installed in the second fixing hole, and a plurality of heat dissipation ribs are arranged on the side wall of the heat dissipation block, so that heat dissipation of the throat pipe is facilitated.

As a preferred technical solution of the nozzle device, the heat dissipation assembly further includes an air guide and a heat dissipation fan, the heat dissipation fan is installed on the heat dissipation block through the air guide, and the heat dissipation fan is configured to dissipate heat from the heat dissipation block, thereby improving heat dissipation efficiency of the throat pipe.

As an optimal technical scheme of shower nozzle device, the choke is the ladder pipe, the path section of ladder pipe install in the first fixed orifices, the big footpath section of ladder pipe install in the second fixed orifices improves choke radiating efficiency, and reduces the heat conduction efficiency between choke and the heating piece.

As an optimal technical scheme of the spray head device, the spray head device further comprises a material conveying pipe, one end of the material conveying pipe is installed at one end, far away from the throat pipe, of the second fixing hole, and a quick-connection clamping jaw is installed at the other end of the material conveying pipe to guide consumables.

As an optimal technical scheme of the spray head device, the silica gel protective sleeve is sleeved outside the nozzle, so that the heat dissipation efficiency of the nozzle is reduced.

In another aspect, a 3D printer is provided, which includes the spray head device according to any one of the above aspects.

The utility model has the advantages that:

the utility model discloses a middle nozzle device includes choke, nozzle and heating block, wherein choke and nozzle are fixed respectively in the both ends of the first fixed orifices of heating block, and communicate each other, and the heating block can heat the nozzle, makes the consumptive material in the nozzle be in the molten state, in order to carry out 3D printing shaping; the throat pipe is inserted into the tooth grooves in the first fixing hole through the vertical teeth, so that the throat pipe is fixed in the first fixing hole. The utility model discloses in, through erecting tooth fixed connection between the first fixed orifices of choke and heating piece, for threaded connection's mode, area of contact is little between the two, has reduced the efficiency of heating piece to choke heat conduction, is provided with the clearance moreover between the lateral wall of choke and the inside wall of first fixed orifices, and choke accessible clearance dispels the heat. The utility model discloses a reduce the heat conduction efficiency between heating piece and the choke, increased the radiating efficiency of choke simultaneously, prevent shower nozzle device putty and the inhomogeneous phenomenon of the ejection of compact, improved and printed precision and efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a showerhead apparatus according to an embodiment of the present invention;

fig. 2 is an exploded view of a sprinkler device according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a showerhead apparatus according to an embodiment of the present invention.

The figures are labeled as follows:

1. a throat; 11. vertical teeth; 2. a nozzle; 3. a heating block; 31. a first fixing hole; 4. a heat insulation block; 5. a heat dissipating component; 51. a heat dissipating block; 511. a second fixing hole; 512. heat dissipation ribs; 52. an air guide member; 53. a heat radiation fan; 6. a delivery pipe; 7. a quick-connection claw; 71. and (6) quickly connecting a hoop.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

In the prior art, the throat is directly connected with the heating block of the nozzle through threads, and the connection method enables the heat conduction between the throat and the heating block to be fast and the heat dissipation of the throat to be blocked. When the throat temperature was higher than preset temperature, the material silk in the throat became half molten state or molten state by solid-state, leaded to the shower nozzle putty this moment easily, phenomenon such as the ejection of compact is inhomogeneous, finally influences printing precision and efficiency.

To solve the above problem, as shown in fig. 1 to 3, the present embodiment provides a head apparatus including a throat 1, a nozzle 2, and a heating block 3.

Specifically, the heating block 3 is provided with a first fixing hole 31, and the throat 1 and the nozzle 2 are respectively fixed at two ends of the first fixing hole 31; the outer side wall of the throat pipe 1 close to one end of the heating block 3 is provided with vertical teeth 11, the inner side wall of the first fixing hole 31 close to one end of the throat pipe 1 is provided with tooth grooves matched with the vertical teeth 11, the vertical teeth 11 are inserted into the tooth grooves, so that the throat pipe 1 is fixed in the first fixing hole 31, and a gap is formed between the outer side wall of the throat pipe 1 and the inner side wall of the first fixing hole 31. The nozzle 2 is screwed to the first fixing hole 31. It should be noted that the heating principle of the heating block 3 is conventional in the prior art, and the detailed description thereof is omitted here. In this embodiment, a plurality of vertical teeth 11 are annularly arranged on the outer side wall of the throat pipe 1.

The throat 1 and the nozzle 2 are communicated with each other, and the heating block 3 can heat the nozzle 2, so that consumables in the nozzle 2 are in a molten state, and 3D printing forming is carried out. The throat pipe 1 is inserted into the tooth groove in the first fixing hole 31 through the vertical teeth 11, so that the throat pipe 1 is fixed in the first fixing hole 31. In this embodiment, through perpendicular tooth 11 fixed connection between the first fixed orifices 31 of choke 1 and heating block 3, for threaded connection's mode, area of contact is little between the two, has reduced the efficiency of heating block 3 to choke 1 heat conduction, is provided with the clearance moreover between the lateral wall of choke 1 and the inside wall of first fixed orifices 31, and choke 1 accessible clearance dispels the heat. This embodiment has realized reducing the heat conduction efficiency between heating block 3 and the choke 1, has increased the radiating efficiency of choke 1 simultaneously, prevents the inhomogeneous phenomenon of shower nozzle device putty and ejection of compact, has improved printing precision and efficiency. Preferably, the outside cover of nozzle 2 is equipped with the silica gel protective sheath, reduces nozzle 2's radiating efficiency to guarantee the constancy of nozzle 2 temperature.

Preferably, the nozzle device further comprises a heat insulation block 4, the heat insulation block 4 is also installed in the first fixing hole 31 and is located between the throat 1 and the nozzle 2, and the throat 1, the heat insulation block 4 and the heating block 3 are all provided with mutually communicated material conveying holes. In this embodiment, the heat insulation block 4 is assembled in the first fixing hole 31 by interference fit, and two ends of the heat insulation block are respectively abutted against the nozzle 2 and the throat pipe 1, so that heat insulation between the nozzle 2 and the throat pipe 1 is realized, and the consumable materials can be prevented from overflowing after being melted. Further preferably, in this embodiment, the material of the heat insulation block 4 is PEEK material.

Preferably, the nozzle device further comprises a heat dissipation assembly 5, wherein the heat dissipation assembly 5 is fixed at one end, far away from the heating block 3, of the throat pipe 1 and used for dissipating heat of the throat pipe 1, so that the heat dissipation efficiency of the throat pipe 1 is improved, the phenomena of material blockage and uneven discharging in the nozzle device are prevented, and the printing precision and efficiency are improved. Further, the heat dissipation assembly 5 includes a heat dissipation block 51, the heat dissipation block 51 is provided with a second fixing hole 511, one end of the throat 1, which is far away from the heating block 3, is installed in the second fixing hole 511, and a plurality of heat dissipation ribs 512 are arranged on the side wall of the heat dissipation block 51, so as to facilitate heat dissipation. Further preferably, the heat sink 5 further includes an air guide 52 and a heat dissipation fan 53, the heat dissipation fan 53 is mounted on the heat dissipation block 51 through the air guide 52, and the heat dissipation fan 53 is configured to dissipate heat from the heat dissipation block 51. In this embodiment, the heat dissipation fan 53 is fixed to the air guide 52 by screws, and the air guide 52 is fixed to the heat dissipation block 51 by screws, so that when the heat dissipation fan 53 operates, the heat dissipation block 51 is effectively cooled along the air guide 52 in the air direction.

Preferably, in this embodiment, the material of the throat pipe 1 is SUS304 stainless steel. The throat pipe 1 is a stepped pipe, and the small-diameter section of the stepped pipe is arranged in the first fixing hole 31, so that the heat conduction efficiency of the heating block 3 and the small-diameter section of the throat pipe 1 is reduced; the big footpath section of ladder pipe is installed in second fixed orifices 511, improves radiator unit 5 and to the radiating efficiency of big footpath section. In the embodiment, the outer diameter of the large-diameter section of the throat pipe 1 is 6mm, and the inner diameter is 4.2 mm; the external diameter of the small diameter section is 5mm, and the internal diameter is 4.2 mm.

Furthermore, the nozzle device also comprises a material conveying pipe 6, one end of the material conveying pipe 6 is arranged at one end, far away from the throat pipe 1, of the second fixing hole 511, and the other end of the material conveying pipe is provided with a quick-connection clamping claw 7. The consumables enter the nozzle 2 through the quick-connection clamping jaw 7, the material conveying pipe 6, the second fixing hole 511, the throat pipe 1 and the heat insulation block 4 in sequence, and the quick-connection clamping jaw 7 has a guiding effect on the consumables. The inner wall of one end, far away from the radiating block 51, of the conveying pipe 6 is provided with a clamping groove, the quick-connection clamping jaws 7 are provided with a plurality of clamping jaws, the clamping jaws are clamped in the clamping groove, fixing of the quick-connection clamping jaws 7 is achieved, and consumables can penetrate through the centers of the clamping jaws.

Preferably, the jaws 7 are not easy to assemble because the outer diameter of the jaws in their natural state is larger than the inner diameter of the feed hole of the feed pipe 6. Preferably, the quick-connection clamping jaws 7 are provided with quick-connection clamps 71, the quick-connection clamps 71 can be clamped and slidably mounted on the outer side walls of the plurality of clamping jaws, and the clamping jaws are tightened by the aid of mounting positions of the quick-connection clamps 71. When the quick-connection clamping jaws 7 are assembled, the quick-connection clamping hoops 71 are clamped on the side walls of the clamping jaws close to one ends of the material conveying pipes 6, so that the clamping jaws are contracted, the outer diameter is reduced, and the clamping jaws can conveniently penetrate through material conveying holes of the material conveying pipes 6. Then the quick-connection clamping jaws 7 are conveyed into the conveying hole of the conveying pipe 6, meanwhile, the quick-connection clamp 71 slides to the side far away from the conveying pipe 6, so that the heads of the clamping jaws are not limited by the quick-connection clamp 71, the elastic resetting is realized, the clamping jaws are clamped in the clamping grooves, and the assembling efficiency of the quick-connection clamping jaws 7 is improved.

Example two

The embodiment provides a 3D printer, which includes the nozzle device in the first embodiment, and includes the nozzle device described above, so that the advantages described in the first embodiment are achieved, the heat conduction efficiency between the heating block 3 and the throat pipe 1 is reduced, the heat dissipation efficiency of the throat pipe 1 is increased, the phenomena of material blockage and uneven discharging of the nozzle device are prevented, and the printing precision and efficiency are improved.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A spray head apparatus, comprising:

the device comprises a throat pipe (1), a nozzle (2) and a heating block (3), wherein the heating block (3) is provided with a first fixing hole (31), and the throat pipe (1) and the nozzle (2) are respectively fixed at two ends of the first fixing hole (31);

the outer side wall of one end, close to the heating block (3), of the throat pipe (1) is provided with vertical teeth (11), the inner side wall of one end, close to the throat pipe (1), of the first fixing hole (31) is provided with tooth grooves matched with the vertical teeth (11), the vertical teeth (11) are connected in the tooth grooves in an inserting mode, so that the throat pipe (1) is fixed in the first fixing hole (31), and gaps are formed between the outer side wall of the throat pipe (1) and the inner side wall of the first fixing hole (31).

2. Spray head device according to claim 1, further comprising an insulating block (4), said insulating block (4) being mounted inside said first fixing hole (31) and between said throat (1) and said nozzle (2);

the throat pipe (1), the heat insulation block (4) and the heating block (3) are provided with material conveying holes which are communicated with each other.

3. Spray head device according to claim 2, characterized in that the material of the insulating block (4) is PEEK.

4. The spray head device according to claim 1, further comprising a heat dissipation assembly (5), wherein the heat dissipation assembly (5) is fixed to one end of the throat (1) away from the heating block (3), and the heat dissipation assembly (5) is used for dissipating heat of the throat (1).

5. The spray head device according to claim 4, wherein the heat dissipation assembly (5) comprises a heat dissipation block (51), the heat dissipation block (51) is provided with a second fixing hole (511), one end of the throat (1) away from the heating block (3) is installed in the second fixing hole (511), and a plurality of heat dissipation ribs (512) are arranged on the side wall of the heat dissipation block (51).

6. The head apparatus according to claim 5, wherein the heat dissipating component (5) further comprises an air guide (52) and a heat dissipating fan (53), the heat dissipating fan (53) being mounted on the heat dissipating block (51) through the air guide (52), the heat dissipating fan (53) being configured to dissipate heat from the heat dissipating block (51).

7. The showerhead device according to claim 5, wherein the throat pipe (1) is a stepped pipe, a small diameter section of the stepped pipe is installed in the first fixing hole (31), and a large diameter section of the stepped pipe is installed in the second fixing hole (511).

8. The spray head device according to claim 5, further comprising a feed delivery pipe (6), wherein one end of the feed delivery pipe (6) is arranged at one end of the second fixing hole (511) far away from the throat pipe (1), and the other end of the feed delivery pipe is provided with a quick-connection claw (7).

9. Spray head device according to claim 1, characterized in that the spray nozzle (2) is externally sheathed with a silicone protective sleeve.

10. A 3D printer comprising a spray head device according to any one of claims 1 to 9.