KR101712433B1 - Cooling system for 3d printer nozzle - Google Patents

Cooling system for 3d printer nozzle Download PDF

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Publication number
KR101712433B1
KR101712433B1 KR1020150176751A KR20150176751A KR101712433B1 KR 101712433 B1 KR101712433 B1 KR 101712433B1 KR 1020150176751 A KR1020150176751 A KR 1020150176751A KR 20150176751 A KR20150176751 A KR 20150176751A KR 101712433 B1 KR101712433 B1 KR 101712433B1
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KR
South Korea
Prior art keywords
nozzle
air
heat sink
filament
supply pipe
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Application number
KR1020150176751A
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Korean (ko)
Inventor
전석준
Original Assignee
주식회사 시티일렉
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Priority to KR1020150176751A priority Critical patent/KR101712433B1/en
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Publication of KR101712433B1 publication Critical patent/KR101712433B1/en

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    • B29C67/0085—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling

Abstract

The present invention relates to a filament supply pipe to which filaments are fed; A nozzle provided at a lower end of the filament supply pipe; A heat block disposed above the nozzle to heat the filament supply pipe; A heat sink disposed above the heat block for cooling the filament supply pipe; And a cooling unit for sequentially cooling the heat sink and the filament injected from the nozzle using outside air.

Description

{COOLING SYSTEM FOR 3D PRINTER NOZZLE}

The present invention relates to a cooling system of a nozzle for a 3D printer, and more particularly, to a cooling system of a nozzle for a 3D printer for manufacturing a predetermined solid body while melt-extruding a filament as a molding material and stacking the filament.

Generally, a 3D printer refers to a machine that prints (shapes) a real three-dimensional shape based on a three-dimensional drawing (data) created by a computer design program.

That is, after the three-dimensional drawing is completed by using a CAD or a 3D modeling program, the corresponding data is transmitted to the printer through a predetermined data interface, and the 3D printer creates a corresponding stereoscopic object based on the transmitted drawing data .

Then, a virtual cross section is formed on the basis of the drawing data, and a continuous layer is formed while fusing a filament material such as ABS plastic through a nozzle, and the solid object is formed by fusion.

The 3D printer uses an actual filament made of thermoplastics. The filament can be injected into the filament supply pipe 2 shown in FIG. 7 and injected through the nozzle 1. In FIG. In this case, since the filaments injected from the nozzle 1 are layered and laminated, they must be melted before being injected from the nozzle 1, so that the filament supply pipe 2 is provided with a heat block 3) are provided.

However, the nozzle 1 of the conventional 3D printer has a problem that filaments melted by the heat block 3 are expanded in the filament supply tube 2 and stick to the inner wall of the filament supply tube 2.

That is, the filament is heated by the heat block 3 and is instantaneously expanded inside the filament supply pipe 2. At this time, the friction area (contact area) between the expanded filament and the inner wall of the filament supply pipe 2, So that the molten filament sticks to the inner wall of the filament supply pipe 2. [

The problem is that even if the filament is completely injected through the nozzle 1, the filament remains in a hardened state on the inner wall of the filament supply pipe 2, The quality of the output is lowered, and the nozzle 1 is seriously clogged to cause the failure of the 3D printer device.

7, the problem is solved by providing the heat sink 4 on the outer circumferential surface of the filament supply pipe 2. However, in the above-described method, the temperature of the filament supply pipe 2 So that the filaments still stick to the inner wall of the filament supply pipe 2.

Meanwhile, the melted filaments injected from the conventional 3D printer nozzle 1 are stacked with a plurality of layers to produce an output. At this time, the molten filament is naturally cooled at room temperature and takes a long time, Time is delayed. Further, the melted filaments can not be completely cured in the process of being laminated with a plurality of layers, and flow down to the lower layer side occurs.

The above problem is solved by performing a separate operation for smoothing the surface of the output even when the output is finished, thereby slowing the production time of the output.

Therefore, the applicant of the present invention has proposed the present invention to solve the above-mentioned problems, and as a prior art document related thereto, Korean Patent Laid-Open No. 10-2015-0094414 entitled " 3D printer extruder "

The present invention provides a cooling system for a nozzle for a 3D printer which is configured to sequentially cool a filament supply pipe and a filament injected from a nozzle by using external air as one cooling means have.

The present invention relates to a filament supply pipe to which filaments are fed; A nozzle provided at a lower end of the filament supply pipe; A heat block disposed above the nozzle to heat the filament supply pipe; A heat sink disposed above the heat block for cooling the filament supply pipe; And a cooling unit circulating outside air to cool the heat sink and the filament injected from the nozzle.

The cooling unit may include: an air inlet disposed to face the heat sink; a duct connected to the air inlet to form an air outlet disposed toward a lower portion of the nozzle; And a cooling fan provided inside the duct.

The air inlet of the duct may partially accommodate the heat sink and may be larger than the size of the heat sink or the cooling fan so that outside air passed through the heat sink and outside air not passing through the heat sink may be introduced. .

The duct may include a mixing space through which the outside air passing through the heat sink and the outside air not passing through the heat sink can be mixed with each other.

Further, the cooling fan may be arranged to face the heat sink accommodated in the air inlet.

In addition, the duct may have an internal space that gradually decreases from the mixing space toward the air outlet so as to increase the flow rate or the flow rate of the mixed outside air in the mixing space.

The air outlet of the duct may be detachably provided with an air guide portion uniformly guiding the external air over the entire circumferential surface of the filament discharged from the nozzle.

The air guide unit may include an insertion member communicably connected to the air outlet; And circulates external air introduced through the insertion member along the circumferential direction of the nozzle. A circulation member having a receiving hole through which a part of the lower end of the nozzle can be received; And a circulating air outlet for discharging the air flowing along the circulation member in the entire circumferential direction of the outer circumferential surface of the filament discharged from the nozzle.

Further, the circulating air outlet may be formed along the entire inner surface of the circulation member that defines the receiving hole.

The insertion member may be provided with a branching member for branching the flow direction of the external air so that external air discharged through the air outlet may flow along the forming direction of the circulation member.

The cooling system of the nozzle for a 3D printer according to the present invention is characterized in that the cooling system of the nozzle for 3D printer firstly cools the heat sink when the external air is introduced into the air inlet of the duct and the external air cooled by the heat sink is discharged to the air outlet The filaments injected from the nozzles are cooled secondarily, so that the heat sink and the filaments injected from the nozzles can be simultaneously cooled by only one cooling fan.

In addition, since the cooling system of the nozzle for a 3D printer of the present invention can increase the cooling efficiency of the heat sink, it is possible to prevent the filament residue from adhering to the inner wall of the filament supply tube and to smoothly flow the filament in the filament supply tube do.

In addition, the cooling system of the nozzle for a 3D printer of the present invention can cool the melted filament injected from the nozzle by using outside air without naturally cooling the nozzle, thereby improving the output speed of the 3D printer.

In addition, the cooling system of the nozzle for a 3D printer of the present invention can prevent the melted filament injected from the nozzle from flowing down or spreading in the course of natural cooling, thereby improving the quality of the output, The productivity of the output can be increased because the output finishing operation is not performed.

1 is a perspective view of a cooling system of a nozzle for a 3D printer according to an embodiment of the present invention;
2 is a cross-sectional view of the cooling system shown in Fig.
Figure 3 is a side view of the cooling system in the direction of arrow A shown in Figure 1;
4 is a perspective view of an air guide according to an embodiment of the present invention;
FIG. 5 is a sectional view of the air guide shown in FIG. 4 as viewed from the front; FIG.
FIG. 6 is a sectional view of the air guide shown in FIG. 5 as seen from a plane; FIG.
7 is a view showing a configuration of a conventional nozzle for a 3D printer.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings.

It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Hereinafter, a cooling system 100 of a nozzle for a 3D printer according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 6. FIG. In describing the present invention, a detailed description of known functions and configurations incorporated herein will be omitted so as not to obscure the gist of the invention.

1 to 3, a cooling system 100 of a nozzle for a 3D printer according to an embodiment of the present invention includes a filament supply pipe 110 to which filaments are supplied, a lower end of the filament supply pipe 110 A heat block 130 disposed at an upper portion of the nozzle 120 to heat the filament supply pipe 110 and a heater 120 disposed at an upper portion of the heat block 130, A heat sink 140 for preventing overheating of the heat sink 110; And a cooling unit 200 for sequentially cooling the heat sink 140 and the filament injected from the nozzle 120 using external air.

The filament supply pipe 110 can receive a filament to be a base material of the output through a filament supply reel (not shown) and a feed roll. The filament supply pipe 110 is connected to a three-dimensional feeding mechanism (not shown) The X axis, the Y axis, and the Z axis direction.

The nozzle 120 is supplied to the filament supply pipe 110 and is heated by the heat block 130 to inject the melted filament onto the bed. As described above, the nozzle 120 is provided at the lower end of the filament supply pipe 110 do.

The heat block 130 may be disposed on the lower end of the filament supply pipe 110 in the longitudinal direction of the nozzle 120. The heating block 130 receives power from an unillustrated power source to generate instantaneous strong heat so that the filament supply pipe 110 is heated by the heat block 130 to melt the filament have.

The heat sink 140 may be disposed on a portion of the filament supply pipe 110 in a longitudinal direction while being disposed on the heat block 130. The heat sink 140 may have a configuration in which a plurality of heat radiation fins are spaced apart from each other by a predetermined distance and disposed along the entire outer circumferential surface or the circumferential surface of the filament supply pipe 110. The heat sink 140 may prevent the filament supply pipe 110 from being overheated by the heat block 130.

Air at room temperature or cooling can be heat exchanged with the heat sink 140 while passing through the heat sink 140 having a plurality of heat dissipating fins formed so as to surround the outer circumferential surface of the filament supply pipe 110, The temperature of the heat sink 140 is lowered and the filament supply pipe 110 is cooled. Therefore, the air that has passed through the heat sink 140 is in a state of higher temperature than the air of normal temperature.

The cooling system 100 of the nozzle for the 3D printer configured as described above may include the configuration of the nozzle for the conventional 3D printer described in the background art of the present invention.

That is, since the filament supply pipe 110, the nozzle 120, the heat block 130, and the heat sink 140 are applied to a known nozzle for a 3D printer, A detailed description of the configuration is omitted.

The cooling unit 200 according to an embodiment of the present invention increases the heat dissipation effect of the heat sink 140 by allowing external air to flow into the heat sink 140, And the melted filament being jetted from the nozzle 120 is cooled by using the outside air introduced into the sink 140 side.

The cooling unit 150 includes a duct 210 having both ends vertically connected to the heat sink 140 and the nozzle 120 in the direction in which the nozzle 120 is disposed, And may include a cooling fan 220.

One end of the duct 210 is an air inlet 211 through which the outside air flows and the other end of the duct 210 is connected with the outside air flowing into the air inlet 211 And becomes the air outlet 213 to be discharged.

2, the air inlet 211 may be disposed to face the heat sink 140 while accommodating a part of the heat sink 140. That is, the heat sink 140 may be partially inserted into the air inlet 211 of the duct 210. Therefore, the air that has passed through the heat sink 140 can be introduced into the air inlet 211 of the duct 210. As described above, the heat absorbed by the heat sink 140 while passing through the heat sink 140, and the air whose temperature has risen can be introduced into the air inlet 211.

The air inlet 211 may have a size or area larger than the size or area formed by the heat sink 140. Accordingly, when the cooling fan 220 is operated, the air inlet 211 is connected to the outside air a via the plurality of radiating fins of the heat sink 140 and the plurality of radiating fins 220 of the heat sink 140, And the outside air a 'not passing through the cooling fan 220 may be introduced.

The outside air a flowing into the air inlet 211 through the heat sink 140 and the cooling fan 220 flows into the space between the plurality of heat radiation fins of the heat sink 140, It is possible to cool the lengthwise portion of the filament supply pipe 110 provided with the heat sink 140 and the heat sink 140 by forcibly blowing by the heater 220.

The external air a 'flowing directly into the air inlet 211 without passing through the heat sink 140 can cool the longitudinal portion of the filament supply pipe 110.

The temperature of the outside air a flowing into the air inlet 211 via the heat sink 140 is lower than the temperature of the outside air a 'not passed through the heat sink 140 . In other words, since the outside air (a) passing through the heat sink 140 is raised in the process of passing through the plurality of heat radiation fins of the heat sink 140, Is higher than the temperature of the air (a ').

Therefore, if only the external air (a) passed through the heat sink 140 is used to cool the filament injected from the nozzle 120, the cooling efficiency may be lowered.

However, the cooling system 100 according to an embodiment of the present invention is configured such that the air inlet 211 of the duct 210 can also receive external air a 'not passing through the heat sink 140 The external air a passed through the heat sink 140 and the external air a 'not passing through the heat sink 140 are mixed with each other in the duct 210 to form the heat sink 140, The temperature of the outside air (a) passing through the pipe For this, the air inlet 211 of the duct 210 is preferably formed larger than the cooling fan 220 or larger than the heat sink 140.

At this time, the duct 210 is provided with a mixing space S in which the outside air a passed through the heat sink 140 and the outside air a 'not passing through the heat sink 140 can be mixed .

2, the mixing space S may be formed so as to be curved so that the flow of the external air a. A 'may be stagnated for a while, The introduced outside air a, a 'may be stagnantly mixed while being struck against the inner wall of the duct 210 forming the mixing space S.

As described above, when the outside air a passed through the heat sink 140 and the outside air a 'not passed through the heat sink 140 are mixed in the mixing space S of the duct 210 , The temperature of the outside air a via the heat sink 140 can be lowered by the outside air a 'not passing through the heat sink 140.

That is, the temperature of the outside air mixed in the mixing space S is lower than the temperature of the outside air a passed through the heat sink 140, and the outside air a ' ) Than the temperature of the air.

External air having a temperature lower than the temperature of the external air (a) passed through the heat sink 140 is discharged from the air outlet 213 of the duct 210, The filament can be cooled.

Here, the air outlet 213 may be formed to adjust the distance to the nozzle 120 and the air injection angle with respect to the nozzle 120.

2, the duct 210 is formed in the mixing space S so as to increase the flow rate or flow rate of the external air mixed in the mixing space S, It is possible to form an inner space gradually becoming narrower toward the formed direction.

The cooling fan 220 can be operated by receiving power from a power source unit (not shown), and draws outside air to the air inlet 211 side. The cooling fan 220 may be disposed inside the air inlet 211 in a state where the cooling fan 220 is disposed to face the heat sink 140.

Since the external air having a low flow rate can be introduced into the heat sink 140 by the cooling fan 220, the cooling of the filament supply pipe 110 can be facilitated and the cooling efficiency can be increased.

The cooling system 100 of the nozzle for a 3D printer according to an embodiment of the present invention configured as described above is configured to cool the heat sink 140 in the course of the external air being introduced into the air inlet 211 of the duct 210 . Since the external air cooled by the heat sink 140 is discharged to the air outlet 213 of the duct 210, the melted filament injected from the nozzle 120 is cooled, There is an advantage that not only the heat sink 140 and the filament supply pipe 110 are cooled but also the molten filament degree injected from the nozzle 120 can be cooled at the same time by only one cooling fan 220 for allowing air to flow therethrough .

Since the air outlet 213 of the duct 210 is disposed on one side of the nozzle 120, the melted filament injected from the nozzle 120 is discharged from the air outlet 213 It can be bent in one direction by air. That is, the nozzle 120 can not be sprayed in the vertical direction at the end of the nozzle 120, and can be sprayed on the nozzle 120 while being bent by the external air discharged from the air outlet 213.

If the filament is bent in the nozzle 120 as described above, the filaments may not be stacked according to the set drawing data, resulting in a problem that the quality of the output is lowered.

In order to compensate for the above disadvantages, the cooling system 100 of the nozzle for a 3D printer according to an embodiment of the present invention uniformly distributes the outside air uniformly over the entire circumferential direction of the filament being jetted from the nozzle 120 And guide air guiding unit 230. Fig.

4 to 6, the air guide 230 may be detachably installed in the air outlet 213 of the duct 210, and may communicate with the air outlet 213 And the outer air introduced through the insertion member 231 is circulated and discharged along the circumferential direction of the molten filament injected from the nozzle 120 or the nozzle 120, A circulation member 233 having a receiving hole 233a capable of receiving a part of the lower end of the circulation member 233 and air flowing along the circulation member 233 is discharged to the entire circumferential direction of the filament being jetted from the nozzle 120 And a circulating air outlet 235.

The insertion member 231 may be inserted into the opened opening of the air outlet 213 and may be detachably coupled to the air outlet 213 by a known coupling method, have. The insertion member 231 may receive external air discharged from the air outlet 213 and may transfer the air to the circulation member 233.

When the insertion member 231 is coupled to the air outlet 213, the circulation member 233 may be formed to surround the lower end of the nozzle 120. At this time, Is inserted into the receiving hole 233a. For example, in an embodiment of the present invention, the circulation member 233 has a donut shape. However, the present invention is not limited thereto, and the outer surface of the filament injected from the lower end of the nozzle 120 or the nozzle 120 And can be formed into various shapes as long as the entire shape can be covered.

The circulation member 233 circulates the external air introduced through the insertion member 231 along the outer surface of the lower end of the nozzle 120.

At this time, the outside air circulating and flowing along the circulation member 233 may be discharged through the circulation air outlet 235.

The circulation air outlet 235 is formed along the entire inner surface of the circulation member 233 defining the receiving hole 233a so that the nozzle 120 having the lower end inserted into the receiving hole 233a The outer air can be uniformly transmitted to the entire outer surface of the filament.

Therefore, since the filament blown from the nozzle 120 uniformly acts on the entire outer surface of the filament by the air guide portion 230 having the above-described structure, the filament blown from the nozzle 120 It can be uniformly cooled without being bent or biased to one side by the outside air, and can be injected while maintaining the straightness on the nozzle 120 without being biased to one side by the pressure of the outside air.

6, external air discharged through the air outlet 213 flows into the insertion member 231 of the air guide unit 230 along the forming direction of the circulation member 233 A branching member 237 for branching the flow direction of the external air may be provided.

The branching member 237 is provided at an inner center of the insertion member 231 so that external air discharged from the air discharge port 213 and flowing into the insertion member 231 is discharged from the insertion member 231 So that it can be branched into both sides in the width direction and introduced into the circulation member 233.

The external air that is branched by the branch member 237 and flows into the circulation member 233 circulates in the circumferential direction along the inner wall of the circulation member 233 and flows through the circulation air outlet 233a And can be discharged toward the entire outer surface of the filament injected from the nozzle 120.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments.

Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

100: Nozzle cooling system for 3D printer
110: filament supply pipe 120: nozzle
130: heat block 140: heat sink
200: cooling section 210: duct
211: air inlet 213: air outlet
220: cooling fan 230: air guide
231: insertion member 233: circulation member
237:

Claims (10)

A filament supply pipe to which a filament is supplied;
A nozzle provided at a lower end of the filament supply pipe;
A heat block disposed above the nozzle to heat the filament supply pipe;
A heat sink disposed above the heat block to prevent overheating of the filament supply pipe; And
A cooling unit for sequentially cooling the heat sink and the filament injected from the nozzle using outside air; Lt; / RTI >
The cooling unit may include: a duct having an air inlet disposed to face the heat sink and an air outlet disposed toward a lower portion of the nozzle; And a cooling fan provided inside the duct,
The air outlet of the duct is provided with an air guide portion for uniformly guiding outside air to the entire outer peripheral surface of the filament discharged from the nozzle,
Wherein the air guide portion includes: an insertion member communicably connected to the air outlet; A circulation member circulating the external air introduced through the insertion member along the circumferential direction of the nozzle and having a receiving hole capable of receiving a part of the lower end of the nozzle; And a circulation air outlet for discharging the air flowing along the circulation member to the entire circumferential direction of the outer circumferential surface of the filament discharged from the nozzle.
delete The method according to claim 1,
The air inlet of the duct is formed to have a size larger than the size of the heat sink or the cooling fan to partially receive the heat sink and allow outside air passed through the heat sink and external air not passed through the heat sink to flow Wherein the cooling system is a nozzle for a 3D printer.
The method of claim 3,
Wherein the duct has a mixing space in which external air passing through the heat sink and external air not passing through the heat sink can be mixed with each other through the air inlet, .
The method of claim 3,
Wherein the cooling fan is disposed to face the heat sink accommodated in the air inlet.
5. The method of claim 4,
Wherein the duct has an internal space that gradually decreases from the mixing space toward the air outlet so as to increase the flow rate or flow rate of the mixed outside air in the mixing space.
delete delete The method according to claim 1,
Wherein the circulating air outlet comprises:
Wherein the nozzle is formed along the entire inner surface of the circulation member forming the receiving hole.
The method according to claim 1,
Wherein the insertion member is provided with a branching member for branching the flow direction of the outside air so that the outside air discharged through the air outlet can flow along the forming direction of the circulation member. Cooling system.
KR1020150176751A 2015-12-11 2015-12-11 Cooling system for 3d printer nozzle KR101712433B1 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101884420B1 (en) 2018-03-21 2018-08-01 서경진 Nozzle heat dissipation unit of 3D printer using thermosyphon and manufacturing method thereof
WO2018213559A1 (en) * 2017-05-17 2018-11-22 Slice Engineering LLC Adaptable high-performance extrusion head for fused filament fabrication systems
KR20180126958A (en) 2017-05-19 2018-11-28 (주)지이엠플랫폼 Nozzle device for 3D printer
KR102060251B1 (en) * 2018-08-21 2019-12-30 김해섭 Apparatus for dispensing material of 3D printer
KR102062741B1 (en) * 2018-03-13 2020-01-06 주식회사 포던테크 Thermal reproduction device of 3D printer
KR20200063369A (en) 2018-11-23 2020-06-05 주식회사 네오시즈 Nozzle neck cooling system of 3D printer and 3D printer using it
KR20200075934A (en) 2018-12-12 2020-06-29 한성대학교 산학협력단 Cooling system of 3d printer being capable of printing soft materials
KR102610144B1 (en) * 2022-06-17 2023-12-04 김이강 Slot Die and Slit Nozzle Coating Apparatus Equipped With Heat Dissipation Structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002500966A (en) * 1998-01-26 2002-01-15 ストラタシス・インコーポレイテッド Rapid prototype system with filament supply spool monitoring
KR100880593B1 (en) * 2007-10-04 2009-01-30 한국기계연구원 A layer manufacturing apparatus
KR20150116585A (en) * 2014-04-08 2015-10-16 키오스크코리아(주) Nozzle structure of three-dimensional printer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002500966A (en) * 1998-01-26 2002-01-15 ストラタシス・インコーポレイテッド Rapid prototype system with filament supply spool monitoring
KR100880593B1 (en) * 2007-10-04 2009-01-30 한국기계연구원 A layer manufacturing apparatus
KR20150116585A (en) * 2014-04-08 2015-10-16 키오스크코리아(주) Nozzle structure of three-dimensional printer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018213559A1 (en) * 2017-05-17 2018-11-22 Slice Engineering LLC Adaptable high-performance extrusion head for fused filament fabrication systems
CN110770002A (en) * 2017-05-17 2020-02-07 切片工程有限责任公司 Adaptable high performance extrusion head for fuse manufacturing system
US10875244B2 (en) 2017-05-17 2020-12-29 Slice Engineering LLC Adaptable high-performance extrusion head for fused filament fabrication systems
CN110770002B (en) * 2017-05-17 2022-05-17 切片工程有限责任公司 Adaptable high performance extrusion head for fuse manufacturing system
KR20180126958A (en) 2017-05-19 2018-11-28 (주)지이엠플랫폼 Nozzle device for 3D printer
KR102062741B1 (en) * 2018-03-13 2020-01-06 주식회사 포던테크 Thermal reproduction device of 3D printer
KR101884420B1 (en) 2018-03-21 2018-08-01 서경진 Nozzle heat dissipation unit of 3D printer using thermosyphon and manufacturing method thereof
KR102060251B1 (en) * 2018-08-21 2019-12-30 김해섭 Apparatus for dispensing material of 3D printer
KR20200063369A (en) 2018-11-23 2020-06-05 주식회사 네오시즈 Nozzle neck cooling system of 3D printer and 3D printer using it
KR20200075934A (en) 2018-12-12 2020-06-29 한성대학교 산학협력단 Cooling system of 3d printer being capable of printing soft materials
KR102610144B1 (en) * 2022-06-17 2023-12-04 김이강 Slot Die and Slit Nozzle Coating Apparatus Equipped With Heat Dissipation Structure

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