CN214645927U

CN214645927U - 3D printer is with novel printer head that beats

Info

Publication number: CN214645927U
Application number: CN202120732460.9U
Authority: CN
Inventors: 吴进; 万东东; 姚立伟
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 is with novel printer head that beats, including radiator unit, choke, heating element, nozzle, feed channel and nozzle are connected to the choke, the choke is located radiator unit's middle part, heating element is located radiator unit's below, the last first connecting piece that is equipped with of radiator unit, the last corresponding position of heater unit is equipped with the second connecting piece, radiator unit passes through first connecting piece the second connecting piece with heating element links to each other, first connecting piece with radiator unit is a body coupling. The utility model discloses a printer head's radiator is less with the area of contact of heating piece, avoids the heat transfer between heating piece and the radiator as far as possible, can avoid the choke heat more simultaneously, avoids the interior material softening windrow of consuming of choke.

Description

3D printer is with novel printer head that beats

Technical Field

The utility model relates to a 3D printer field, more specifically the utility model relates to a 3D printer is with novel beating printer head that says so.

Background

The 3D printer of FDM technology generally uses filiform or granular consumables, and the consumables are made to enter a molten state through temperature control, extruded through a nozzle and laid and molded according to a set path under the control of a program. The extrusion control part of the consumable is called a printing head (Hotend), the printing head is composed of a radiator, a throat pipe, a heating block and a nozzle, the printing head is a core component of the 3D printer, and the performance of the printing head directly influences the overall performance of the 3D printer.

Temperature control is 3D beats printer head's important function, dispels the heat to the choke fast effectively, can reduce the temperature before the consumptive material gets into the nozzle fusion chamber for the consumptive material can keep the rigidity, improves the response speed that the consumptive material fed and withdraws. The radiator is in contact with the throat pipe, heat is transferred to the radiator from the throat pipe through heat conduction, forced convection heat dissipation is carried out on the radiator through the heat dissipation fan, and the heat can be rapidly dispersed.

However, in the 3D printer, the radiator inevitably comes into direct or indirect contact with the heating block, and the heat transferred from the heating block affects the radiation of the radiator. It is therefore desirable to minimize contact between the heat spreader and the heating block. In the existing 3D print head, the heat radiator and the heating block are generally connected by a throat, that is, the throat is respectively connected with the heat radiator and the heating block by a thread. In this connection mode, the wall thickness of the heat insulation section is generally set to be about 0.5mm, so that the heat of the throat part is more when the printing head is in a working state, and the material consumption in the throat is easy to soften the piled material, thereby causing the printing blockage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a 3D printer is with novel printer head that beats, the utility model discloses a printer head's radiator is less with the area of contact of heating piece, and the heat transfer between avoiding heating piece and the radiator as far as possible can avoid the choke heat more simultaneously, and the interior material consumption of avoiding the choke softens the windrow.

The technical scheme is as follows:

the utility model provides a 3D printer is with novel printer head that beats, includes radiator unit, choke, heating element, nozzle, feed channel and nozzle are connected to the choke, the choke is located radiator unit heater unit's middle part, heating element is located radiator unit's below, the last first connecting piece that is equipped with of radiator unit, the last corresponding position of heater unit is equipped with the second connecting piece, radiator unit passes through first connecting piece the second connecting piece with heating element links to each other, first connecting piece with radiator unit is connection as an organic whole.

Furthermore, the first connecting piece is a connecting column, and the second connecting piece is a connecting groove; or, the first connecting piece is a connecting groove, and the second connecting piece is a connecting column.

Furthermore, the number of the first connecting pieces is three, and the three first connecting pieces are uniformly distributed on the heat dissipation assembly.

Further, three first connecting pieces enclose a triangular structure.

Furthermore, a third connecting piece is further arranged on the heat dissipation assembly, a fourth connecting piece is arranged at a corresponding position on the heating assembly, and the heat dissipation assembly is connected with the heating assembly through the third connecting piece and the fourth connecting piece.

Furthermore, the third connecting piece is arranged on the first connecting piece, and the fourth connecting piece is arranged on the second connecting piece.

Furthermore, the number of the third connecting pieces is two, and the two third connecting pieces are arranged on the heat dissipation assembly oppositely.

Furthermore, the heat dissipation assembly comprises a heat dissipation outer frame and a heat dissipation body, the heat dissipation body is located inside the heat dissipation outer frame, and the first connecting piece is located at the bottom of the heat dissipation outer frame.

Furthermore, a gap is arranged between the bottom of the heat dissipation outer frame and the heating block.

Further, an adapter is arranged above the heat dissipation assembly and fixedly connected with the heat dissipation assembly.

The advantages or principles of the invention are explained below:

1. the utility model discloses a beat printer head and be equipped with first connecting piece on radiator unit, be equipped with the second connecting piece on heating element, radiator unit passes through first connecting piece, second connecting piece and links to each other with heating element. The heat dissipation assembly and the heating assembly do not need to be connected through the throat pipe, so that the heat of the throat pipe is prevented from being more, and printing consumables are prevented from being softened and accumulated in the throat pipe. The heat dissipation assembly is connected with the heating assembly through the first connecting piece and the second connecting piece, so that the contact area between the heat dissipation assembly and the heating assembly can be reduced, and heat transfer is reduced.

2. The number of the first connecting pieces is three, and the number of the first connecting pieces is three connecting columns. When the heat dissipation assembly is connected and fixed with the heating assembly, the three connecting pieces can play a limiting role, so that the heat dissipation assembly and the heating assembly can be assembled together more accurately. The three connecting columns have certain stability, the area of a contact surface can be reduced to the maximum extent, and the heat transfer of the heating assembly is blocked as much as possible.

3. Because first connecting piece and radiator unit structure as an organic whole, under the prerequisite of guaranteeing antitorque and locking fixed, can also reduce the equipment step when the equipment, improve the packaging efficiency.

Drawings

Fig. 1 is a perspective view of a print head of the first embodiment;

fig. 2 is a front view of the print head of the first embodiment;

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

FIG. 4 is a schematic structural diagram of a printhead according to another embodiment;

description of reference numerals:

10. a heat dissipating component; 20. a throat; 30. a heating assembly; 40. a nozzle; 11. a heat dissipation outer frame; 31. a heating block; 12. a first connecting member; 32. a second connecting member; 13. a third connecting member; 33. a fourth connecting member; 50. a fastener; 14. a heat sink; 15. a heat dissipating fin; 16. a heat dissipation air duct; 60. and (6) an adapter.

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.

The first embodiment:

as shown in fig. 1 to 3, the present embodiment discloses a novel print head for a 3D printer, which includes a heat dissipation assembly 10, a throat 20, a heating assembly 30, and a nozzle 40. The throat pipe 20 is connected with the feeding channel and the nozzle 40, the throat pipe 20 is located in the middle of the heat dissipation assembly 10 and the heating assembly 30, and the heating assembly 30 is located below the heat dissipation assembly 10. The consumable for 3D printing enters the throat pipe 20 through the feeding channel, is radiated by the heat radiation component 10, is heated and melted by the heating component 30 and then is sprayed out through the nozzle 40, and accordingly printing is achieved.

Preferably, the heat dissipation assembly 10 of the present embodiment at least includes the heat dissipation frame 11, and the heating assembly 30 at least includes the heating block 31. A space is arranged between the bottom of the heat dissipation outer frame 11 and the heating block 31. In order to realize the connection and fixation of the heat dissipation assembly 10 and the heating assembly 30, a first connecting piece 12 is arranged on the heat dissipation outer frame 11, a second connecting piece 32 is arranged at a corresponding position of the heating block 31, and the heat dissipation outer frame 11 is connected with the heating block 31 through the first connecting piece 12 and the second connecting piece 32. The first connecting member 12 is integrally connected with the heat dissipation outer frame 11.

The heat dissipation assembly 10 and the heating assembly 30 of the embodiment do not need to be connected through the throat pipe 20, so that the heat of the throat pipe 20 is prevented from being too much, and the printing consumables are prevented from being softened and accumulated in the throat pipe 20. The heat dissipation assembly 10 and the heating assembly 30 are connected through the first connecting piece 12 and the second connecting piece 32, so that the contact area between the heat dissipation assembly 10 and the heating assembly 30 can be reduced, and heat transfer is reduced.

Preferably, the first connecting member 12 is a connecting column, and the second connecting member 32 is a connecting groove matched with the connecting column. In another embodiment, the second connector 32 can be provided as a connecting column, and the first connector 12 is a connecting groove matched with the connecting column. When the heat dissipation frame 11 is connected to the heating block 31, the connection column is inserted into the connection groove to establish connection and fixation.

The connecting columns can be of different structures such as cylinders, triangular columns and square columns, and the number of the connecting columns can be set to be one, two, three or more.

In this embodiment, three first connecting members 12 are disposed on the heat dissipation frame 11, and the three first connecting members 12 are uniformly distributed at the bottom of the heat dissipation frame 11. Further, three first connecting pieces 12 enclose a triangular structure.

When the heat dissipation assembly 10 is fixedly connected with the heating assembly 30, the three connecting columns can play a limiting role, so that the heat dissipation assembly 10 and the heating assembly 30 can be assembled together more accurately. The three connecting columns have certain stability, and can reduce the area of the contact surface to the maximum extent and block the heat transfer of the heating component 30 as much as possible. Meanwhile, as the first connecting piece 12 and the heat dissipation assembly 10 are of an integral structure, the assembling steps can be reduced during assembling on the premise of ensuring torsion resistance and locking fixation, and the assembling efficiency is improved.

In order to further realize the connection and fixation of the heat dissipation assembly 10 and the heating assembly 30, a third connecting member 13 is further disposed on the heat dissipation outer frame 11, a fourth connecting member 33 is disposed at a corresponding position on the heating block 31, and the heat dissipation outer frame 11 and the heating block 31 are connected through the third connecting member 13 and the fourth connecting member 33.

Preferably, there are two third connecting members 13, two third connecting members 13 are oppositely disposed on the heat dissipation assembly 10, and the two third connecting members 13 are respectively located between two adjacent first connecting members 12. Preferably, the third connecting member 13 and the fourth connecting member 33 may be both connecting holes, and the further connection and fixation between the heat dissipation frame 11 and the heating block 31 is realized by nailing the fastener 50 into the third connecting member 13 and the fourth connecting member 33.

The "fastener 50" may be a screw, a bolt, or other components capable of achieving fixed connection.

The heat dissipation assembly 10 further comprises a heat dissipation body 14, the heat dissipation body 14 is located inside the heat dissipation outer frame 11, and heat dissipation fins 15 are fixedly connected to the heat dissipation body 14 and the heat dissipation outer frame 11. In order to achieve a better heat dissipation effect, a heat dissipation air duct 16 is further provided on the heat dissipation outer frame 11.

The adapter 60 is arranged above the heat dissipation outer frame 11, and the adapter 60 is fixedly connected with the heat dissipation outer frame 11. Preferably, the heat dissipation frame 11 and the adapter 60 can be fixed by screw threads.

Second embodiment:

the present embodiment is not shown in the drawings, and the present embodiment is further described below with reference to fig. 1 to 3.

This embodiment also discloses a 3D printer is with novel printer head that beats, and is different from first embodiment:

the number of the third connecting pieces 13 and the number of the fourth connecting pieces 33 in this embodiment are three, the third connecting pieces 13 are disposed on the first connecting pieces 12, and the fourth connecting pieces 33 are disposed on the second connecting pieces 32. Preferably, the first connecting member 12 is a connecting column, and the third connecting member 13 is a connecting hole, which is disposed in the middle of the connecting column. The second link 32 is a link groove, and the fourth link 33 is also a link hole located inside the link groove.

When the heating assembly 30 is fixedly connected with the heat dissipation assembly 10, the connecting column is firstly inserted into the connecting groove for preliminary fixing, and then the fasteners 50 are nailed into the third connecting piece 13 and the fourth connecting piece 33 for further fixing connection.

The connection method between the heating assembly 30 and the heat dissipation assembly 10 disclosed in the first and second embodiments can also be used in the print head shown in fig. 4, and the structure of the print head is not particularly limited, and the connection method can be adopted.

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 novel printer head that beats, includes radiator unit, choke, heating element, nozzle, feed channel and nozzle are connected to the choke, the choke is located radiator unit heating element's middle part, heating element is located radiator unit's below, a serial communication port, the last first connecting piece that is equipped with of radiator unit, the last corresponding position of heater unit is equipped with the second connecting piece, radiator unit passes through first connecting piece the second connecting piece with heating element links to each other, first connecting piece with radiator unit is a body coupling.

2. The novel print head for a 3D printer according to claim 1, wherein the first connecting member is a connecting post and the second connecting member is a connecting groove; or, the first connecting piece is a connecting groove, and the second connecting piece is a connecting column.

3. The novel print head for the 3D printer according to any of claims 1 or 2, wherein there are three first connectors, and three first connectors are evenly distributed on the heat sink assembly.

4. The novel printhead for a 3D printer of claim 3 wherein three of said first connectors define a triangular configuration.

5. The novel printing head for the 3D printer according to any one of claims 1 or 2, wherein a third connecting piece is further arranged on the heat dissipation assembly, a fourth connecting piece is arranged at a corresponding position on the heating assembly, and the heat dissipation assembly is connected with the heating assembly through the third connecting piece and the fourth connecting piece.

6. The novel print head for a 3D printer according to claim 5, wherein the third connecting member is disposed on the first connecting member, and the fourth connecting member is disposed on the second connecting member.

7. The novel printing head for the 3D printer according to claim 5, wherein the number of the third connecting members is two, and the two third connecting members are oppositely arranged on the heat dissipation assembly.

8. The novel printing head for the 3D printer according to claim 1, wherein the heat dissipation assembly comprises a heat dissipation frame and a heat dissipation body, the heat dissipation body is located inside the heat dissipation frame, and the first connecting piece is located at the bottom of the heat dissipation frame.

9. The novel print head for the 3D printer according to claim 8, wherein a space is provided between the bottom of the heat dissipation frame and the heating assembly.

10. The novel printing head for the 3D printer according to claim 1, wherein an adapter is arranged above the heat dissipation assembly, and the adapter is fixedly connected with the heat dissipation assembly.