KR20150089240A - A 3D Printer - Google Patents

A 3D Printer Download PDF

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Publication number
KR20150089240A
KR20150089240A KR1020140009634A KR20140009634A KR20150089240A KR 20150089240 A KR20150089240 A KR 20150089240A KR 1020140009634 A KR1020140009634 A KR 1020140009634A KR 20140009634 A KR20140009634 A KR 20140009634A KR 20150089240 A KR20150089240 A KR 20150089240A
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South Korea
Prior art keywords
printer
unit
molten material
present
nozzle
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KR1020140009634A
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Korean (ko)
Inventor
노영진
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노영진
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Priority to KR1020140009634A priority Critical patent/KR20150089240A/en
Publication of KR20150089240A publication Critical patent/KR20150089240A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)

Abstract

The present invention relates to a printer comprising: a printer head unit for discharging a molten material; And a printer stage unit for printing an object by laminating the molten material, wherein the printer head unit includes a nozzle unit and a molten material supply unit for supplying the molten material to the nozzle unit, The present invention relates to a 3D printer further comprising an electric field application device and a cooling means for discharging the molten metal through the cooling means by the pressure drop caused by the air discharge of the electric field applying device and the nozzle portion, The printing time can be shortened because the temperature can be lowered to a predetermined temperature before being discharged through the portion.

Description

3D Printer {A 3D Printer}

The present invention relates to a 3D printer, and more particularly, to a 3D printer capable of improving a printing speed.

As is well known, the 3D printing method corresponds to a technique of printing through three-axis movement of X axis, Y axis and Z axis in comparison with the conventional 2D printing method of printing through two-axis motion of the X axis and Y axis.

In the 3D printing method, there are various printing methods according to a method of forming a lamination method or a form, for example, a rapid forming method and an FDM method.

The rapid prototyping method corresponds to a method in which a three-dimensional design is performed by software, and then a three-dimensional printing is performed by stacking layers of hardened powders or liquids in layers. FDM (Fused Deposition Modeling) And the like are formed by sequentially laminating materials changed in the state.

Other information about the 3D printing method can be found in the following documents.

- 3D printing technology - ASTM F43 sub-committee on terminology (F2792)

- Large, Hollow Metal Parts by 3D Printing - Copyright 1989-2000, 3DPTM Laboratory, MIT

On the other hand, in the FDM (Fused Deposition Modeling) method, materials changed in a molten state at a constant high temperature are sequentially laminated, and materials changed in a high-temperature molten state are laminated, There is a problem.

That is, since the printed article can be firmly formed only when it is cooled to a predetermined temperature in a high-temperature molten state, printing must be performed in consideration of a time period during which the high-temperature molten state is cooled to a predetermined temperature. There is a dot.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a 3D printer capable of improving printing speed.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to solve the above-mentioned problems, the present invention provides a printer comprising: a printer head unit for discharging a molten material; And a printer stage unit for printing an object by laminating the molten material, wherein the printer head unit includes a nozzle unit and a molten material supply unit for supplying the molten material to the nozzle unit, And a cooling means for cooling the 3D printer.

The present invention also provides a 3D printer including an air inlet for injecting air and an air outlet for discharging air injected through the air inlet.

Further, the present invention provides a 3D printer further comprising an electric field applying device in which a first pole is connected to a certain region of the nozzle portion and a second pole is connected to a certain region of the printer stage portion.

Further, the present invention may further include an auxiliary nozzle unit inserted into an end of the nozzle unit, wherein the auxiliary nozzle unit includes: an insertion unit inserted into the nozzle unit; A melt discharge unit for discharging the melt discharged from the nozzle unit; And a hollow portion through which the melt can flow.

Further, the present invention provides a 3D printer further comprising an electric field applying device in which a first pole is connected to a certain region of the nozzle portion and a second pole is connected to a certain region of the auxiliary nozzle portion.

Further, the present invention provides a 3D printer further comprising an insulating material positioned in a certain region of the hollow portion.

Further, the present invention provides a 3D printer, wherein the insulating material includes a predetermined groove, and the predetermined groove extends from the insertion portion to the melt discharge portion.

Further, in the present invention, the air outlet is connected to the predetermined groove, and the air discharged from the air outlet flows into the insertion portion along the predetermined groove, and is discharged to the melt discharge portion .

Since the 3D printer according to the present invention includes the cooling means for cooling the molten material, the molten material in the molten state at a high temperature can be lowered to a predetermined temperature before being discharged through the nozzle portion, It is not necessary to consider the time during which the molten state is cooled to the predetermined temperature, so that the printing time can be shortened.

In the present invention, the first pole is connected to a certain region of the nozzle portion, and the second pole is connected to a certain region of the printer stage portion, and the electric field is applied through the electric field applying device to the molten material discharged through the nozzle portion The dropping speed can be increased.

Further, in the present invention, by forming the electric field area between the nozzle part and the auxiliary nozzle part, the dropping speed is increased in the electric field area, and accordingly, the printing time can be shortened as the dropping rate of the melt increases.

1 is a schematic perspective view showing a 3D printer of a general structure.
2 is a schematic perspective view showing a 3D printer according to a first embodiment of the present invention.
3 is a schematic perspective view showing a 3D printer according to a second embodiment of the present invention.
FIG. 4A is a schematic perspective view illustrating a 3D printer according to a third embodiment of the present invention, and FIG. 4B is a schematic perspective view illustrating an auxiliary nozzle unit of a 3D printer according to a third embodiment of the present invention.
FIG. 5A is a schematic perspective view illustrating a 3D printer according to a fourth embodiment of the present invention, and FIG. 5B is a schematic perspective view illustrating an auxiliary nozzle unit of a 3D printer according to a fourth embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. &Quot; and / or "include each and every combination of one or more of the mentioned items. ≪ RTI ID = 0.0 >

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" And can be used to easily describe a correlation between an element and other elements. Spatially relative terms should be understood in terms of the directions shown in the drawings, including the different directions of components at the time of use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic perspective view showing a 3D printer of a general structure.

Referring to FIG. 1, a 3D printer 10 having a general structure is a device for three-dimensionally moving an object to perform printing on the outside of a printing object made of a plane and a curved surface. The apparatus includes a printer head 20 for discharging a molten material, And a printer stage unit 11 for printing an object by laminating molten material.

More specifically, the printer head unit 20 includes a nozzle unit 21 for discharging a molten material and includes a molten material supply unit 22 for supplying a molten material to the nozzle unit 21 can do.

At this time, in the present invention, the powdered material can be melted at a high temperature to supply the molten material to the molten material supply unit 22. Alternatively, the molten material supply unit may include a separate heating unit and a powdered material container The molten material can be directly melted in the melted material supply part 22 by melting the powder material by the heating part.

This is changeable according to the needs of the user and does not limit the configuration of the molten material supply unit in the present invention.

However, in the present invention, it is preferable that a molten material, that is, a molten material, is supplied to the nozzle unit 21 through the molten material supply unit 22.

Next, the printer stage unit 11 is a region for printing an object by laminating the molten material discharged from the nozzle unit, that is, the molten material is laminated on the printer stage unit 11, ) Of the object.

Meanwhile, as described above, the 3D printing method corresponds to a technique of printing through three-axis movement of X axis, Y axis and Z axis, as compared with the conventional 2D printing method of printing through biaxial motion of the X axis and Y axis .

Accordingly, the 3D printer 10 of a general structure may include driving means for performing three-axis movement in the X-axis, the Y-axis, and the Z-axis.

That is, the 3D printer 10 having a general structure may include a first axis driving means for X axis movement, a second axis driving means for Y axis movement, and a third axis driving means for Z axis movement.

In the above description, the first axis drive means to the third axis drive means perform X-axis, Y-axis and Z-axis motions, respectively. However, this is for convenience of explanation only, The first shaft driving means may be defined as Y-axis moving means, the second shaft driving means may be defined as X-axis driving means, and the third shaft driving means may be defined as Z-axis moving means.

Therefore, in the present invention, the meaning of X, Y, Z is not limited.

Hereinafter, for convenience of explanation, the first axis driving means is for X axis movement, the second axis driving means is for Y axis movement, and the third axis driving means is for Z axis movement .

As shown in FIG. 1, a 3D printer 10 having a general structure includes a first shaft driving means 30 for X-axis movement, a second shaft driving means 40 for Y-axis movement, And a third axis driving means (50).

1, the printer head 20 of the 3D printer 10 having a general structure is located in a predetermined region of the first shaft driving means 30, and the printer head 20 ), It is possible to perform X-axis movement.

The printer stage unit 11 of the general structure 3D printer 10 is located in a certain region of the second shaft driving means 40 and moves in the Y axis direction by the movement of the printer stage unit 11 itself You can exercise.

The first axis driving means 30 of the 3D printer 10 of the general structure is connected to the third axis driving means 50 so that the first axis driving means 30 is connected to the third axis driving means 30, Vertical motion is performed through the rotary shaft 50 to perform Z-axis movement.

That is, the 3D printer 10 of the general structure includes a first shaft driving means 30 for X-axis movement, a second shaft driving means 40 for Y-axis movement, and a third shaft driving means 50, the X, Y, and Z-axis motions can be performed, and the respective driving means for performing the X, Y, and Z-axis motions are well known in the art, so a detailed description thereof will be omitted In addition, the present invention does not limit the kind of such driving means.

The molten material is supplied to the nozzle unit 22 from the nozzle unit 22 through the molten material supply unit 22 and the molten material is supplied from the nozzle unit 22 to the printer stage unit 11 can print an object on the printer stage portion 11 by a molten material.

At this time, in order to sequentially laminate the materials changed to the molten state at a constant high temperature, the changed materials are laminated at a high temperature in a molten state, and therefore, printing time is increased.

That is, since the printed article can be firmly formed only when it is cooled to a predetermined temperature in a high-temperature molten state, printing must be performed in consideration of a time period during which the high-temperature molten state is cooled to a predetermined temperature. There is a dot.

Hereinafter, a 3D printer according to the present invention will be described.

2 is a schematic perspective view showing a 3D printer according to a first embodiment of the present invention. The 3D printer according to the first embodiment of the present invention may refer to the 3D printer of the general structure of FIG. 1, except as described below.

Referring to FIG. 2, the 3D printer 100 according to the first embodiment of the present invention includes a printer head unit 120 for discharging a molten material, a printer stage unit 111 for stacking the molten material and printing an object, . ≪ / RTI >

More specifically, the print head unit 120 includes a nozzle unit 121 for discharging a molten material and may include a molten material supply unit 122 for supplying a molten material to the nozzle unit 121 have.

At this time, in the present invention, the powdered material can be melted at a high temperature to supply the molten material to the molten material supply unit 122. Alternatively, the molten material supply unit may be provided with a separate heating unit and a powdered material container The molten material can be directly melted in the molten material supply unit 122 by melting the powder material by the heating unit.

However, in the present invention, it is preferable that the molten material, that is, the molten material, is supplied to the nozzle unit 121 through the molten material supply unit 122.

The printer stage portion 111 is a region for printing an object by laminating the molten material discharged from the nozzle portion, that is, the molten material is stacked on the printer stage portion 111, It is possible to print an object on the screen.

In addition, the 3D printer 100 according to the first embodiment of the present invention may include driving means for performing three-axis movement in the X-axis, the Y-axis, and the Z-axis.

That is, the 3D printer 100 according to the first embodiment of the present invention includes a first axis driving means for X axis movement, a second axis driving means for Y axis movement, and a third axis driving means for Z axis movement .

More specifically, as shown in FIG. 2, the 3D printer 100 according to the first embodiment of the present invention includes a first axis driving means 130 for X-axis movement, a second axis driving means 130 for Y- Means 140 and third axis drive means 150 for Z-axis motion.

2, the printer head 120 of the 3D printer 100 having a general structure is located in a predetermined region of the first axis driving means 130, and the printer head 120 ), It is possible to perform X-axis movement.

In the 3D printer 100 according to the first embodiment of the present invention, the printer stage unit 111 is located in a predetermined region of the second shaft driving unit 140, By movement, Y-axis movement can be done.

In the 3D printer 100 according to the first embodiment of the present invention, the first shaft driving means 130 is connected to the third shaft driving means 150, and the first shaft driving means 130 By performing the vertical vertical motion through the third axis driving means 150, the Z axis movement can be performed.

That is, the 3D printer 100 according to the first embodiment of the present invention includes a first axis driving means 130 for X axis movement, a second axis driving means 140 for Y axis movement, By including the third axis driving means 150, the X, Y, and Z axis motions can be performed. Since each of the driving means for performing the X, Y, and Z axis motions corresponds to a well-known technical field, A description thereof will be omitted, and there is no limitation on the kind of such driving means in the present invention.

2, the 3D printer 100 according to the first embodiment of the present invention includes a cooling unit 160 located in a predetermined area of the nozzle unit 121. [

The cooling means 160 is for lowering the temperature of the molten material, and it is preferable that the coolant is sprayed to the end of the nozzle portion 121.

At this time, the cooling unit 160 may include an air inlet 161 for injecting air and an air outlet 162 for discharging the air injected through the air inlet.

That is, the cooling means 160 injects air through the air inlet 161, and the injected air is discharged through the air outlet 162, so that the temperature of the molten material discharged from the nozzle portion is maintained at a constant temperature Can be lowered.

Although not shown in the drawing, the air inlet may be filled with compressed air, and may further include a separate air compression means for providing the compressed air, that is, a compressor device.

As described above, in the case of a general 3D printer, since a changed material is laminated at a high temperature in a molten state, a printed article can be firmly formed only at a high temperature in a molten state, It takes a considerable time to cool down to a certain temperature and therefore requires a lot of printing time.

However, since the present invention includes the cooling means for cooling the molten material, the molten material in the molten state at a high temperature can be lowered to a predetermined temperature before being discharged through the nozzle portion, It is not necessary to take the time to be cooled by the temperature into account, thereby shortening the printing time.

3 is a schematic perspective view showing a 3D printer according to a second embodiment of the present invention. The 3D printer according to the second embodiment of the present invention can refer to the 3D printer according to the first embodiment of the present invention except for the following.

As described above, the 3D printer according to the first embodiment of the present invention includes the cooling means for cooling the molten material, so that the printing time can be shortened.

In the second embodiment of the present invention, the printing time can be shortened through the electric field applying device 170 together with the cooling water stage described above.

That is, in the 3D printer according to the second embodiment of the present invention, the first pole 171 is connected to a certain region of the nozzle unit 121, the second pole 172 is connected to a certain region of the printer stage unit 111, And an electric field applying device 170 connected to the electric field applying device 170. The electric field applying device 170 can increase the falling rate of the molten material discharged through the nozzle portion.

For example, an anode is connected to the nozzle unit, an anode is connected to the printer stage unit, and an electric field area is formed between the nozzle unit and the printer stage unit, so that the melt discharged from the nozzle unit is discharged from the electric field area The dropping rate is increased, and accordingly, the printing time can be shortened as the dropping rate of the melt increases.

FIG. 4A is a schematic perspective view illustrating a 3D printer according to a third embodiment of the present invention, and FIG. 4B is a schematic perspective view illustrating an auxiliary nozzle unit of a 3D printer according to a third embodiment of the present invention. The 3D printer according to the third embodiment of the present invention may refer to the 3D printer according to the second embodiment of the present invention, except as described below.

As described above, in the 3D printer according to the second embodiment of the present invention, the first pole is connected to a certain region of the nozzle unit 121, and the second pole is connected to a certain region of the printer stage unit 111 And the rate of falling of the molten material discharged through the nozzle portion can be increased through the electric field applying device.

4A and 4B, in the third embodiment of the present invention, by applying an electric field directly to the nozzle unit 121 through the separate auxiliary nozzle unit 190, the printing time Can be shortened.

More specifically, the 3D printer according to the third embodiment of the present invention includes an auxiliary nozzle unit 190 inserted into an end of the nozzle unit 121.

As shown in FIG. 4B, the auxiliary nozzle unit 190 includes an insertion portion 191 for insertion into the nozzle portion, and includes a melt discharge portion 192 for discharging the melt discharged from the nozzle portion And a hollow portion through which the melt can flow.

That is, the auxiliary nozzle unit can be fastened to the nozzle unit through the insertion unit, and the melt discharged from the nozzle unit flows through the hollow part and is finally discharged through the melt discharge unit.

At this time, a certain region of the hollow portion may include an insulating material 193, and the insulating material not only hardens the connection between the auxiliary nozzle portion and the nozzle portion, but also prevents the auxiliary nozzle portion and the nozzle portion from being short-circuited.

4A, in the 3D printer according to the third embodiment of the present invention, the first pole 181 is connected to a certain region of the nozzle unit 121, and the second pole 182 is connected to the auxiliary nozzle unit And an electric field applying device 180 connected to a predetermined region of the electric field applying device 190. The falling rate of the molten material discharged through the nozzle portion can be increased through the electric field applying device.

At this time, in order to prevent short-circuiting when applying an electric field to the auxiliary nozzle unit and the nozzle unit, an insulating material may be included in a certain region of the hollow portion of the auxiliary nozzle unit.

As described above, in the third embodiment of the present invention, for example, a cathode is connected to the nozzle unit, an anode is connected to the auxiliary nozzle unit, and an electric field area is formed between the nozzle unit and the auxiliary nozzle unit , The dropping speed in the electric field area is increased, and accordingly, the printing time can be shortened as the dropping rate of the melt increases.

FIG. 5A is a schematic perspective view illustrating a 3D printer according to a fourth embodiment of the present invention, and FIG. 5B is a schematic perspective view illustrating an auxiliary nozzle unit of a 3D printer according to a fourth embodiment of the present invention. The 3D printer according to the fourth embodiment of the present invention may refer to the 3D printer according to the third embodiment of the present invention except for the following.

As described above, in the 3D printer according to the third embodiment of the present invention, by applying an electric field directly to the nozzle unit 121 through the separate auxiliary nozzle unit 190, the printing time Can be shortened.

At this time, the auxiliary nozzle unit 190 includes an inserting unit 191 for inserting into the nozzle unit; A melt discharge unit 192 for discharging the melt discharged from the nozzle unit; And a hollow portion through which the melt can flow, and an insulating material 193 may be included in a certain region of the hollow portion.

Referring to FIG. 5B, in the fourth embodiment of the present invention, the insulating material 193 includes predetermined grooves 196a and 196b.

The predetermined grooves 196a and 196b may extend from the inserting portion 191 of the auxiliary nozzle portion to the melt discharging portion 192. In this case, In the present invention, it may be at least one or more.

5A and 5B, a 3D printer according to a fourth embodiment of the present invention includes a cooling unit 160. The cooling unit 160 includes an air inlet 161 for injecting air, And an air outlet 162 for discharging the air injected through the air inlet. The air outlet 162 is connected to predetermined grooves 196a and 196b of the insulating material 193 .

That is, the air discharged from the air outlet may flow into the inserting portion 191 of the auxiliary nozzle portion along the predetermined groove of the insulating material, and may be discharged to the melt discharging portion 192.

In this case, in order to increase the dropping speed of the melt simultaneously with the cooling of the melt, the air is introduced into the insertion portion of the auxiliary nozzle portion and the air is discharged to the melt discharge portion.

That is, due to the air supplied to the inserting portion of the auxiliary nozzle portion, that is, the compressed air, the insertion portion has a pressure lowered according to the Bernoulli principle, and the pressure drop of the inserting portion increases the discharge speed of the melt.

At the same time, since the compressed air can lower the temperature of the molten liquid, in the present invention, the rate of drop of the molten liquid through the compressed air supplied to the insertion portion and discharged to the molten liquid discharging portion together with the cooling of the molten liquid is Can be increased simultaneously.

In the fourth embodiment of the present invention, similarly to the third embodiment described above, by applying an electric field directly to the nozzle unit 121 through the auxiliary nozzle unit 190, as the falling rate of the molten liquid increases, The printing time can be shortened.

Therefore, in the present invention, by applying the electric field directly to the nozzle portion through the auxiliary nozzle portion, the falling rate of the melt is increased, and the drop rate of the melt is increased through the pressure drop according to the Bernoulli principle, Can be further increased.

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, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Claims (8)

A printer head unit for discharging molten material; And
And a printer stage unit for printing the object by laminating the molten material,
Wherein the printer head portion includes a nozzle portion and a molten material supply portion for supplying the molten material to the nozzle portion,
And a cooling unit located in a certain region of the nozzle unit. The method according to claim 1,
Wherein the cooling means includes an air inlet for injecting air and an air outlet for discharging the air injected through the air inlet. The method according to claim 1,
Wherein the first pole is connected to a certain region of the nozzle portion and the second pole is connected to a certain region of the printer stage portion. 3. The method of claim 2,
Further comprising an auxiliary nozzle unit inserted into an end of the nozzle unit,
Wherein the auxiliary nozzle unit comprises: an insertion unit for insertion into the nozzle unit; A melt discharge unit for discharging the melt discharged from the nozzle unit; And a hollow portion through which the melt can flow. 5. The method of claim 4,
Wherein the first electrode is connected to a certain region of the nozzle portion and the second electrode is connected to a certain region of the auxiliary nozzle portion. 6. The method of claim 5,
And an insulating material located in a certain region of the hollow portion. The method according to claim 6,
Wherein the insulating material includes a predetermined groove,
Wherein the predetermined groove is formed to extend from the insertion portion to the melt discharge portion. 8. The method of claim 7,
The air outlet is connected to the predetermined groove,
Wherein the air discharged from the air discharge port flows into the insertion portion along the predetermined groove and is discharged to the melt discharge portion.
KR1020140009634A 2014-01-27 2014-01-27 A 3D Printer KR20150089240A (en)

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CN105945243A (en) * 2016-07-14 2016-09-21 辽宁森远增材制造科技有限公司 Vacuum material feeding and material distributing device of laser 3D printing machine for sand mould manufacturing
KR20170032118A (en) 2015-09-14 2017-03-22 장동규 3d printer
WO2018121176A1 (en) * 2016-12-26 2018-07-05 唐富强 Full-colour 3d print head
KR20190000580A (en) * 2017-06-23 2019-01-03 충남대학교산학협력단 3D printer system and 3D printing method using it
KR20190046187A (en) * 2017-10-25 2019-05-07 한국기계연구원 Structure Manufacturing Device for Maintain Moldable Shape
KR20190053472A (en) 2017-11-10 2019-05-20 김선호 3D Printer Cooling System Using Arc Contraction Nozzles by Cooled Shielding Gas
KR102332535B1 (en) * 2020-07-17 2021-12-01 비즈 주식회사 Wire arc directed energy deposition 3d printing apparatus for flattening outer surface
KR102402644B1 (en) * 2021-04-02 2022-05-26 재단법인 한국탄소산업진흥원 Compactor For 3D Printer
KR20240012035A (en) 2022-07-20 2024-01-29 이성웅 3d printer printing products with enhanced endurance
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170032118A (en) 2015-09-14 2017-03-22 장동규 3d printer
CN105945243A (en) * 2016-07-14 2016-09-21 辽宁森远增材制造科技有限公司 Vacuum material feeding and material distributing device of laser 3D printing machine for sand mould manufacturing
CN105945243B (en) * 2016-07-14 2017-11-24 辽宁森远增材制造科技有限公司 Sand mold makes the vacuum feeding distribution device with laser 3D printing machine
WO2018121176A1 (en) * 2016-12-26 2018-07-05 唐富强 Full-colour 3d print head
KR20190000580A (en) * 2017-06-23 2019-01-03 충남대학교산학협력단 3D printer system and 3D printing method using it
KR20190046187A (en) * 2017-10-25 2019-05-07 한국기계연구원 Structure Manufacturing Device for Maintain Moldable Shape
KR20190053472A (en) 2017-11-10 2019-05-20 김선호 3D Printer Cooling System Using Arc Contraction Nozzles by Cooled Shielding Gas
KR102332535B1 (en) * 2020-07-17 2021-12-01 비즈 주식회사 Wire arc directed energy deposition 3d printing apparatus for flattening outer surface
KR102402644B1 (en) * 2021-04-02 2022-05-26 재단법인 한국탄소산업진흥원 Compactor For 3D Printer
KR20240012035A (en) 2022-07-20 2024-01-29 이성웅 3d printer printing products with enhanced endurance
WO2024101528A1 (en) * 2022-11-11 2024-05-16 주식회사 티앤알바이오팹 Blower apparatus for improving 3d structure printing process

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