KR20230101508A - Electrode for 3D printing apparatus using selective electrochemical additive manufacturing and method of manufacturing the same - Google Patents

Abstract

The present invention relates to an electrode for a three-dimensional printing device using selective electrochemical electrodeposition, a manufacturing method thereof, and a manufacturing device thereof, and specifically to the electrode used in a three-dimensional printing device using selective electrochemical electrodeposition, a manufacturing method of the electrode, and a manufacturing device of the electrode capable of selectively laminating metal raw materials on a substrate using selective-electrochemical additive manufacturing (S-ECAM). The electrode for a three-dimensional printing device using selective electrochemical electrodeposition of the present invention comprises a glass tube; a metal wire; and a sealing part.

Description

Electrode for 3D printing apparatus using selective electrochemical electrodeposition and manufacturing method thereof {Electrode for 3D printing apparatus using selective electrochemical additive manufacturing and method of manufacturing the same}

The present invention relates to an electrode for a 3D printing device using selective electrochemical electrodeposition, a method for manufacturing the same, and an apparatus for manufacturing the same, and in detail, using a selective-electrochemical additive manufacturing (S-ECAM) method. It relates to an electrode used in a 3D printing device using selective electrochemical electrodeposition capable of selectively laminating a metal raw material on a substrate, a method for manufacturing the electrode, and a device for manufacturing the electrode.

3D printing technology uses additive manufacturing, which laminates materials such as polymeric materials, plastics, or metal powder, based on three-dimensional design data, to produce physical models, prototypes, tools, and parts. It is a technique to shape the back.

As for 3D printing methods, liquid-based and powder-based methods are mainly used depending on the characteristics of the raw material used. In the liquid-based method, polymer synthetic resin in liquid state is used to laminate layers one by one according to the shape of the object and then laminated. The powder-based method is a method that goes through the process of melting or sintering the metal raw material made in the form of powder.

3D printers using polymers or plastics as dual raw materials can be implemented in a liquid-based method and are widely used, whereas metal raw materials are difficult to implement in a liquid-based method and can be implemented mainly in a powder-based method. Due to price, complex processing method, high sintering temperature, and risk of explosion, unlike 3D printers using plastic raw materials, it is not widely used.

On the other hand, as a prior art for solving the above problems, a method of selectively stacking a metal raw material on a substrate using a selective electrochemical deposition method (S-ECAM, Selective-ElectroChemical Additive Manufacturing) is used to create a three-dimensional structure of a metal. A 3D printing device implementing printing has been disclosed.

For example, the 3D printing device uses an electrode as an anode and a substrate as a cathode to form an appropriate gap between each facing surface, immersing it in an electrolyte, and applying a current to stack the electrodes on the substrate along the moving path of the electrode. By this, 3D printing of metal can be implemented.

The present invention relates to an electrode used in a 3D printing device using selective electrochemical deposition capable of selectively laminating a metal raw material on a substrate using electrochemical additive manufacturing (ECAM), and the electrode. A manufacturing method is provided.

In addition, the present invention provides a device capable of manufacturing an electrode used in a 3D printing device using selective electrochemical electrodeposition, which can selectively layer a metal raw material on a substrate using a layering method by electrochemical electrodeposition.

An electrode used in a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention includes a glass tube; a metal wire penetrating the glass tube; and a sealing part sealing the upper part of the glass tube in a state in which the metal wire protrudes, wherein the lower part of the glass tube is sealed, and the lower surface of the metal wire is at the center of the lower bottom surface of the sealed glass tube. It can be exposed in a flat state with the lower bottom.

In addition, in the electrode used in the 3D printing apparatus using selective electrochemical electrodeposition according to an embodiment of the present invention, the metal wire is connected to a platinum wire constituting a lower surface of the metal wire and the platinum wire, and the sealing part A copper wire protruding outward may be included.

In addition, in the electrode used in the 3D printing apparatus using selective electrochemical electrodeposition according to an embodiment of the present invention, the bottom sealing of the glass tube is formed by applying heat to the lower part of the glass tube, and the sealing part is formed by applying heat to the upper part of the glass tube. It can be formed by applying silicon.

On the other hand, the manufacturing method of the electrode used in the 3D printing device using the selective electrochemical electrodeposition according to an embodiment of the present invention, the metal wire insertion step of inserting the metal wire through the glass tube; Sealing the lower portion of the glass tube by applying heat to the lower portion of the glass tube; a polishing step of polishing the bottom of the sealed glass tube so that the bottom of the metal wire is exposed in a flat state with the bottom of the glass tube; and sealing the top of the glass tube in a state where the metal wire protrudes by applying silicon to the top of the glass tube.

In addition, in the method of manufacturing an electrode used in a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention, the metal wire is a platinum wire formed on the bottom of the metal wire and exposed to the bottom of the flat glass tube. and a copper wire connected to the platinum wire and protruding upward from the glass tube, and the manufacturing method may include a step of forming a metal wire connecting the platinum wire and the copper wire.

On the other hand, the electrode used in the 3D printing apparatus using selective electrochemical electrodeposition according to an embodiment of the present invention is insert-molded with a body made of a thermosetting resin and penetrating the center of the body (insert-molding) A metal wire may be included, and a bottom of the metal wire may be exposed in a flat state with the bottom of the body at a central portion of the bottom of the body, and an upper portion of the metal wire may protrude outward from the top of the body.

In addition, in the electrode used in the 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention, the metal wire is connected to a platinum wire exposed at the center of the bottom of the flat body and the platinum wire, A copper wire protruding outward from the top of the body may be included.

In addition, in the electrode used in the 3D printing apparatus using selective electrochemical electrodeposition according to an embodiment of the present invention, the lower part of the body may have a tapered shape.

On the other hand, a method for manufacturing an electrode used in a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention includes a mold preparation step of preparing a mold having a hollow hole; a metal wire insertion step of inserting a metal wire through the hollow hole; a metal wire fixing step of aligning and fixing the metal wire to the center of the hollow hole; an insert molding step of injecting and curing a thermosetting resin into the hollow hole to form a body of the electrode that is insert-molded in a state in which the metal wire passes through the hollow hole; a mold separation step of separating the insert-molded body from the mold with the metal wire penetrating therethrough; and a polishing step of polishing the lower surface of the insert-molded body with the metal wire passing therethrough to make the lower surface of the metal wire flat with the lower surface of the body.

In addition, the method of manufacturing an electrode used in a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention further includes a processing step of processing the lower part of the body in which the metal wire is insert-molded into a tapered shape can do.

In addition, in the method of manufacturing an electrode used in a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention, the metal wire is a platinum wire that forms the bottom of the metal wire and is exposed to the center of the bottom of the body. and a copper wire connected to the platinum wire and protruding upward from the body, and the manufacturing method may include a step of forming a metal wire connecting the platinum wire and the copper wire.

In addition, in the method for manufacturing an electrode used in a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention, the mold is a glass tube, and the mold separation step may be a step of removing the glass tube by breaking it. there is.

Meanwhile, a 3D printing apparatus using selective electrochemical deposition according to an embodiment of the present invention includes a tub accommodating an electrolyte; a substrate placed in a state of being immersed in the electrolyte contained in the tub; an electrode holder to which the electrode is fixed; a power supply unit for applying power to the substrate and the electrode; a driving unit controlling movement of the electrode holder; and a control unit controlling the driving unit and the power supply unit to selectively electrodeposit and stack the metal ions included in the electrolyte on the substrate.

According to the electrode and the manufacturing method of the electrode according to an embodiment of the present invention having the configuration as described above, the electrode used in the 3D printing device using selective electrochemical electrodeposition can be easily manufactured.

In addition, according to the electrode and the manufacturing method of the electrode according to an embodiment of the present invention, it is not necessary to seal separately, durability can be improved, and the same and constant electrode can be manufactured regardless of the skill level of the operator.

In addition, according to the electrode and the manufacturing apparatus of the electrode according to an embodiment of the present invention, it is possible to easily manufacture the electrode in which the metal wire is aligned in the center.

The effects according to the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims and detailed description. You will be able to.

1 is a diagram schematically showing a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention;
2 is a cross-sectional view schematically showing an electrode for a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention;
Figure 3 is a view showing the bottom of the electrode according to Figure 2,
4 is a flow chart showing a method of manufacturing an electrode according to FIG. 2;
5 is a schematic cross-sectional view of an electrode for a 3D printing device using selective electrochemical electrodeposition according to another embodiment of the present invention;
Figure 6 is a view showing the bottom of the electrode according to Figure 5,
7 is a flowchart showing a method of manufacturing an electrode according to FIG. 5;
8 is a vertical cross-sectional view schematically showing an apparatus for manufacturing an electrode according to FIG. 5;
9 is a horizontal cross-sectional view of a second horizontal support unit according to another embodiment;
10 is a view of a state viewed from the left to the right of the second horizontal support according to FIG.

Hereinafter, an electrode used in a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention, a method of manufacturing the electrode, and a device for manufacturing the electrode will be described with reference to the accompanying drawings.

In the description with reference to the accompanying drawings, the same elements are given the same reference numerals, and redundant description thereof will be omitted.

In the drawings, the thickness or size of each layer (film), region, pattern, or structure may be modified or exaggerated for clarity and convenience of explanation, and the present invention is not limited by the relative size or thickness shown in the accompanying drawings.

Meanwhile, each embodiment may be implemented independently or together, and some components may be excluded in accordance with the purpose of the invention.

In addition, directional terms such as 'upper', 'lower', 'upper', 'lower', 'one', 'the other', 'upper', 'bottom', 'upper', 'lower', etc. refer to the orientation of the disclosed drawings. may be used in connection with As components of embodiments of the present invention may be positioned in a variety of orientations, directional terms are used for purposes of illustration and not limitation.

In addition, terms such as first and second may be used to describe various components, but the components are not limited to the above terms and may be used for the purpose of distinguishing one component from another.

1 is a diagram schematically showing a 3D printing apparatus using selective electrochemical electrodeposition according to an embodiment of the present invention.

Referring to FIG. 1 , a 3D printing device 10 according to an embodiment of the present invention includes a tub 12 accommodating an electrolyte 11 and an electrolyte 11 accommodated in the tub 12. A substrate 13 placed in a immersed state, an electrode holder 14 to which an electrode 20 is fixed, a power supply unit 15 for applying power to the substrate 13 and the electrode 20, The driving unit 16 for controlling the movement of the electrode holder 14, and the driving unit 16 and the power supply unit 15 are controlled to selectively release the metal ions contained in the electrolyte 11 onto the substrate 13. It may include a control unit 17 for electrodeposition and lamination.

Bottom surfaces of the substrate 13 and the electrode 20 may be spaced apart from each other by a predetermined interval in a state of facing each other and immersed in the electrolyte solution 11 accommodated in the tub 12 .

For example, the substrate 13 may be immersed in the electrolyte solution 11 accommodated in the tub 12 while being placed in the tub 12, and the electrode 20 may affect the operation of the driving unit 16. By the movement of the electrode holder 14, the bottom surface of the electrode 20 is immersed in the electrolyte solution 11 accommodated in the tub 12 and can face the substrate 13 at a predetermined interval.

In addition, in a state in which the substrate 13 and the bottom surface of the electrode 20 face each other at a predetermined interval and are immersed in the electrolyte solution 11 accommodated in the tub 12, the control unit 17 controls the power supply unit ( 15) to apply power to the substrate 13 and the electrode 20 by setting the electrode 20 to (+) and the substrate 13 to (-), the substrate 13 has the Metal ions included in the electrolyte solution 11 may be deposited on the region 18 where the bottom surface of the electrode 20 faces each other through electrochemical deposition.

Accordingly, the control unit 17 controls the driving unit 16 and the power supply unit 15 to selectively electrodeposit and stack metal ions included in the electrolyte 11 on the substrate 13 .

The driver 16 is a component for controlling the movement of the electrode holder 14, and may be provided to drive the electrode holder 14 in horizontal and vertical directions.

For example, the driving unit 16 moves the electrode holder 14 horizontally so that the position on which the metal ions are stacked on the substrate 13 can be selected. After the stacking of the layers is complete, the electrode holder 14 may be moved vertically by approximately the height of the stacked one layer to adjust the gap between the substrate 13 and the lower surface of the electrode 20 .

That is, the driver 16 may drive the electrode holder 14 to adjust the three-dimensional displacement including the gap between the lower surface of the electrode 20 and the substrate 13 .

FIG. 2 is a cross-sectional view schematically illustrating an electrode for a 3D printing device using selective electrochemical electrodeposition according to an embodiment of the present invention, and FIG. 3 is a view showing the bottom of the electrode according to FIG. 2 .

Referring to FIGS. 2 and 3 , the electrode 20 according to an embodiment of the present invention may include a glass tube 21 and a metal wire 22 penetrating the glass tube 21 .

In addition, the lower portion of the glass tube 21 may be sealed. For example, the lower sealing of the glass tube 21 may be formed by applying heat.

In addition, as shown in FIG. 3, in the center of the bottom surface 23 of the sealed glass tube 21, the bottom surface 24 of the metal wire 22 is in a flat state with the bottom surface 23 of the glass tube 21. may be exposed. For example, by polishing the bottom of the sealed glass tube 21 with sandpaper or the like, the bottom surface 24 of the metal wire 22 is exposed in a flat state with the bottom surface 23 of the glass tube 21. can do.

When power is applied to the substrate 13 and the electrode 20 and electrochemical deposition occurs, bubbles are generated. Since these bubbles interfere with stable electrochemical deposition and deteriorate the quality of lamination, In order to improve the quality, it is necessary to ensure that the generated air bubbles are smoothly removed.

However, when the bottom surface 24 of the metal wire 22 goes inward from the bottom surface 23 of the glass tube 21 to form a predetermined space or protrudes beyond the bottom surface 23 of the glass tube 21, the generation The generated air bubbles stay in the space or stick to the protruding portion of the metal wire 22, and thus the generated air bubbles cannot be smoothly removed.

Therefore, in order to improve the lamination quality, it is preferable that the bottom surface 24 of the metal wire 22 and the bottom surface 23 of the glass tube 21 are exposed in a flat state.

Then, as shown in FIG. 1, when the lower portion of the electrode 20 is immersed in the electrolyte solution 11 accommodated in the tub 12, the metal wire 22 is surrounded by the glass tube 21, and the Only the bottom surface 24 of the metal wire 22 may be exposed to the electrolyte solution 11 .

Therefore, when power is applied to the metal wire 22 through the power supply unit 15 in a state where the lower portion of the electrode 20 is immersed in the electrolyte 11 accommodated in the tub 12, the metal wire ( 22) may be laminated by electrodepositing metal ions included in the electrolyte 11 on a region on the substrate 13 facing the bottom surface 24, and at this time, the glass tube 21 is formed by the metal wire 22 It will perform the function of the insulating film surrounding it.

In addition, the upper part of the glass tube 21 is not immersed in the electrolyte 11 contained in the tub 12, but foreign substances such as electrolyte, water, and dust are present in the glass tube 21 accommodating the metal wire 22. It is necessary to prevent inflow into the inside 25, and the metal wire 22 needs to protrude to the outside so that power can be applied.

To this end, the electrode 20 may include a sealing portion 26 for sealing an upper portion of the glass tube 21 in a state in which the metal wire 22 protrudes.

The sealing part 26 may be formed by applying silicon in a state where the metal wire 22 protrudes upward from the glass tube 21 .

In addition, the metal wire 22 comprises a platinum wire 27 exposed at the center of the bottom 23 of the flat glass tube 21 forming the bottom 24 of the metal wire 22, and the platinum wire 27 ) and may include a copper wire 28 protruding outward of the sealing part 26, and the platinum wire 27 and the copper wire 28 may be electrically connected by soldering 29. .

In general, when power is applied while the metal is immersed in the electrolyte, since the metal is eroded by a galvanic corrosion reaction, the metal wire to which power is applied while being exposed to the electrolyte 11 ( 22) needs to be made of platinum (Pt) or titanium (Ti), which has less galvanic corrosion reactivity among metals. Since platinum has better electrical conductivity than titanium, platinum is used in the metal wire 22 ) It is preferable to achieve the bottom 24 of.

In addition, since the platinum is an expensive metal material, in order to lower the total cost of the electrode 20, the portion other than the bottom 24 of the metal wire 22 has excellent electrical conductivity and relatively inexpensive copper wire 28 is used this is preferable

At this time, the metal wire 22 can be used as a copper wire 28 whose bottom is coated with platinum, but the diameter of the electrode 20 generally used in the 3D printing device 10 using selective electrochemical electrodeposition. Since the size must be very small, it is difficult to manufacture the copper wire 28 whose bottom surface is coated with platinum, and rather increases the manufacturing cost.

Therefore, as in the present embodiment, the lower part of the metal wire 22 uses the platinum wire 27 so that the lower surface 24 of the metal wire 22 is formed by the platinum wire 27, and the sealing The upper portion of the metal wire 22 protruding outward from the portion 26 uses a copper wire 28, and solders 29 to the platinum wire 27 and the copper wire 28 to electrically connect them. desirable.

4 is a flowchart illustrating a method of manufacturing an electrode according to FIG. 2 .

Referring to FIG. 4, the manufacturing method (S20) of the electrode 20 includes a metal wire insertion step (S21) of inserting a metal wire 22 through a glass tube 21, and a bottom of the glass tube 21. A glass tube lower sealing step (S22) of sealing the lower part of the glass tube 21 by applying heat, and polishing the lower lower surface 23 of the sealed glass tube 21 so that the lower surface 24 of the metal wire 22 is A polishing step (S23) of exposing the bottom surface 23 of the glass tube 21 in a flat state, and applying silicon to the top of the glass tube 21 so that the metal wire 22 protrudes, and the glass tube ( 21) may include sealing the top of the glass tube (S24).

Although the drawing shows that the glass tube upper sealing step (S24) is performed after the polishing step (S23), the glass tube upper sealing step (S24) is performed after the metal wire insertion step (S21). It may be performed before the glass tube lower sealing step (S22) and the polishing step (S23), but the present invention is not limited thereto.

On the other hand, the metal wire 22 forms the lower surface 24 of the metal wire 22 and is exposed to the lower surface 23 of the flat glass tube 21, the platinum wire 27 and the platinum wire 27 As described above, it may include a copper wire 28 that is connected and protrudes to the top of the glass tube 21 .

To this end, the manufacturing method (S20) may further include a metal wire forming step (S25) of connecting the platinum wire 27 and the copper wire 28 by soldering 29.

According to the electrode 20 having the configuration described above and the manufacturing method (S20), the electrode 20 used in the 3D printing device 10 using selective electrochemical electrodeposition can be easily manufactured.

5 is a cross-sectional view schematically illustrating an electrode for a 3D printing device using selective electrochemical electrodeposition according to another embodiment of the present invention, and FIG. 6 is a view showing the bottom of the electrode according to FIG. 5 .

5 and 6, the electrode 30 according to the present embodiment includes a body 33 made of a thermosetting resin, and a metal that is insert-molded while penetrating the center of the body 33. A wire 22 may be included.

In addition, as shown in FIG. 6, in the center of the bottom surface 34 of the body 33, the bottom surface 24 of the metal wire 22 is exposed in a flat state with the bottom surface 34 of the body 33. can

For example, the lower surface 24 of the metal wire 22 is exposed in a flat state with the lower surface 34 of the body 33 by polishing the lower surface 34 of the body 33 with sandpaper or the like. can be made

Exposing the lower surface 24 of the metal wire 22 in a flat state with the lower surface 23 of the glass tube 21 is to improve the quality of lamination by electrochemical electrodeposition, as described above.

Also, an upper portion of the metal wire 22 may protrude outward from an upper portion of the body 33 .

Then, as shown in FIG. 1, when the lower portion of the electrode 20 is immersed in the electrolyte solution 11 accommodated in the tub 12, the metal wire 22 is surrounded by the body 33. Only the bottom surface 24 of the metal wire 22 may be exposed to the electrolyte solution 11, and the metal wire 22 may be exposed through the upper part of the metal wire 22 protruding outward from the upper part of the body 33. power can be applied.

Therefore, when power is applied to the metal wire 22 through the power supply unit 15 in a state where the lower portion of the electrode 20 is immersed in the electrolyte 11 accommodated in the tub 12, the metal wire ( 22) may be laminated by electrodepositing metal ions included in the electrolyte 11 on a region on the substrate 13 facing the bottom surface 24, and at this time, the body 33 is formed by the metal wire 22 It will perform the function of the insulating film surrounding it.

In addition, the lower portion 35 of the body 33 may have a tapered shape. For example, the lower portion 35 of the body 33 may have a tapered shape by boring.

As such, if the lower portion 35 of the body 33 has a tapered shape, air bubbles generated during electrodeposition are adsorbed to the lower portion 35 of the body 33 to prevent electrochemical deposition from being hindered. The electrodeposition quality can be improved.

On the other hand, the metal wire 22 is connected to the platinum wire 27 exposed on the bottom 34 of the body 33 by forming the bottom 24 of the metal wire 22, and the platinum wire 27 and may include the copper wire 28 protruding from the top of the body 33 as described above.

7 is a flowchart illustrating a method of manufacturing an electrode according to FIG. 5 .

Referring to FIG. 7, the manufacturing method (S30) of the electrode 30 includes a mold preparation step (S31) of preparing a mold having a hollow hole, and inserting a metal wire 22 through the hollow hole. A penetrating step (S32), a metal wire fixing step (S33) of aligning and fixing the metal wire 22 to the center of the hollow hole, and injecting a thermosetting resin into the hollow hole to cure it so that the metal wire 22 is formed. An insert molding step (S34) of forming the body 33 of the electrode 30 that is insert-molded while penetrating the hollow hole, and the body 33 that is insert-molded with the metal wire 22 passing therethrough A mold separation step (S35) of separating the mold from the mold, and polishing the bottom surface 34 of the body 33, which is insert-molded with the metal wire 22 penetrating, to polish the bottom surface 24 of the metal wire 22. ) may include a polishing step (S36) of flattening the lower surface 34 of the body 33.

In addition, the manufacturing method (S30) may further include a processing step (S37) of processing the lower portion of the body 33 in which the metal wire 22 is insert-molded into a tapered shape.

A glass tube may be used as the mold, and the mold separation step (S35) may be a step of removing the glass tube by breaking it.

On the other hand, the metal wire 22 is connected to the platinum wire 27 exposed on the bottom 34 of the body 33 by forming the bottom 24 of the metal wire 22, and the platinum wire 27 and may include a copper wire 28 protruding upward from the body 33, and in the manufacturing method S30, the platinum wire 27 and the copper wire 28 are connected by soldering 29 It is as described above that a metal wire forming step may be further included.

According to the electrode 30 having the configuration described above and the manufacturing method (S30), compared to the electrode 20 and the manufacturing method (S20) according to the above-described embodiment, the upper and lower parts of the body 33 There is no need for separate sealing, durability can be improved, and the same and constant electrode can be manufactured regardless of the skill level of the operator.

8 is a vertical cross-sectional view schematically illustrating an apparatus for manufacturing an electrode according to FIG. 5 .

Referring to FIG. 8, the electrode manufacturing apparatus 100 according to an embodiment of the present invention includes a base 102, a vertical support part 104 provided vertically on one side of the base 102, and the vertical support part 104 ) A first horizontal support 110 extending horizontally to one side of the vertical support 104 and a second horizontal support 120 extending horizontally to one side of the first horizontal support 110 and located above the first horizontal support 110 , The mold support portion 130 provided in the first horizontal support portion 110 may be included.

In addition, the mold support part 130 is provided with a mold seating part 135 in which the mold 134 having a hollow hole 133 is seated, and a lower portion of the mold seating part 135 is provided in the hollow hole 133. An insertion hole 137 into which a lower end of the inserted metal wire 22 is inserted may be formed.

The hollow hole 133 of the mold 135 is a space in which the thermosetting resin is injected and hardened, and the size of the hollow hole 133 may have the size of the body 33 of the electrode 30 to be manufactured.

In addition, a seating portion 114 on which the mold support portion 130 is seated is provided on the first horizontal support portion 110, and the mold support portion 130 may be detachably provided on the seating portion 114. .

In addition, the mold support part 130 may be made of an elastic material so that the mold 134 is forcibly fitted into the mold seating part 135 . For example, the mold support part 130 may be made of a rubber material.

Then, the mold seating portion 135 prepares a plurality of mold support portions 130 prepared according to the size of the mold 134, and attaches one of the plurality of mold support portions 130 to the seating portion 114. By detaching, it is possible to manufacture electrodes 30 of various sizes.

In addition, the manufacturing apparatus 100 may include a first fixing part 125 provided on the second horizontal support part 120 and fixing an upper end of the metal wire 22 inserted into the hollow hole 133. can

Then, the upper end of the metal wire 22 is fixed to the first fixing part 125 so that it can maintain a state of being inserted into the hollow hole 133 .

The first fixing part 125 may be provided in various forms to fix the upper end of the metal wire 22 . For example, the first fixing part 125 may be provided in the form of a clamp for clamping the upper end of the metal wire 22, or a tape, adhesive, etc. for attaching and fixing the upper end of the metal wire 22. It may be provided in a form, the present invention is not limited by the specific configuration of the first fixing part (125).

In addition, the manufacturing apparatus 100 is located above the second horizontal support part 120 and injects the thermosetting resin into the hollow hole 133 of the mold 134 seated on the mold seating part 135. (103).

An epoxy resin may be used as the thermosetting resin.

Also, the mold 134 may be a glass tube.

On the other hand, in the 3D printing device 10 using the selective electrochemical electrodeposition, since the area where the electrodeposition is made is the area on the substrate 13 facing the bottom surface 24 of the metal wire 22, precise 3 For dimensional metal printing, it is necessary to place the lower surface 24 of the metal wire 22 at the center of the lower surface 34 of the body 33 .

Therefore, when manufacturing the electrode 30, it is important that the bottom surface 24 of the metal wire 22 is positioned at the center of the bottom surface 34 of the body 33 of the electrode 30.

To this end, the insertion hole 137 may be located at the center of the hollow hole 133 . Then, the metal wire 22 may be aligned with the central portion of the bottom surface of the hollow hole 133 corresponding to the bottom surface 33 of the electrode 30 .

In addition, it is necessary to fix the metal wire 22 while aligning it to the center of the lower surface of the hollow hole 133 .

In a state in which the metal wire 22 is inserted into the hollow hole 133, a thermosetting resin is injected into the hollow hole 133. At this time, the metal wire 22 is moved by the injected thermosetting resin and the hollow hole This is because the central alignment of the hole 133 may be misaligned.

To this end, the insertion hole 137 may be formed such that the lower end of the metal wire 22 can be press fit. For example, the insertion hole 137 may be made of an elastic material such as rubber, and the size of the insertion hole 137 may be the same as that of the metal wire 22 .

Alternatively, the size of the insertion hole 137 may be larger than the size of the metal wire 22 by a size within an error range. Then, the metal wire 22 can be easily inserted into the insertion hole 137, and even if the metal wire 22 inserted into the insertion hole 137 moves, it can move within the error range.

In addition, the second horizontal support part 120 supports the upper part of the metal wire 22 inserted into the hollow hole 133, and the first support located on the vertical plane of the center of the hollow hole 133 A face 123 may be provided.

Then, in a state in which the metal wire 22 is inserted into the hollow hole 133, the lower end is inserted into the insertion hole 137, and the upper end is fixed to the first fixing part 125, and the metal wire 22 is inserted into the insertion hole 137. As the upper portion of the wire 22 is supported on the first support surface 123 , it may be fixed in a state aligned with the central portion of the hollow hole 133 .

In addition, the manufacturing apparatus 100 may include a third horizontal support 140 extending horizontally from one side of the vertical support 104 and located below the first horizontal support 110.

The third horizontal support part 140 supports the lower part of the metal wire 22 inserted into the insertion hole 137, and the second support surface located on the vertical plane of the center of the hollow hole 133 ( 142) may be provided.

Then, in a state in which the metal wire 22 is inserted into the hollow hole 133, the lower end is inserted into the insertion hole 137 and passed through, and the upper end is fixed to the first fixing part 125, The upper part of the metal wire 22 is supported on the first support surface 123, and the lower part of the metal wire 22 inserted into the insertion hole 137 is supported on the second support surface 142. Accordingly, it can be fixed in a state aligned with the center of the hollow hole 133.

On the other hand, the metal wire 22 is connected to the platinum wire 27 protruding from the lower part of the hollow hole 133 and inserted into the insertion hole 137 and to the upper part of the platinum wire 27, so that the first A first copper wire 281 supported on the support surface 123 and a second copper wire 283 connected to a lower portion of the platinum wire 27 and supported on the second support surface 142 may be included. there is.

This is to expose the lower surface of the platinum wire 27 to the center of the lower surface 34 of the body 33 of the electrode 30 and to reduce the manufacturing cost, and a detailed description thereof is as described above.

9 is a horizontal cross-sectional view of a second horizontal support according to another embodiment, and FIG. 10 is a view of the second horizontal support according to FIG. 9 viewed from left to right.

9 and 10, the upper part of the metal wire 22, for example, the first copper wire 281 is inserted into the first support surface 123 of the second horizontal support part 120. 1 vertical groove 127 may be formed.

The first vertical groove 127 may be formed long in a vertical direction on the center of the hollow hole 133 . For example, the first vertical groove 127 may be formed long in the vertical direction such that the center of the first vertical groove 127 is positioned on the center line 132 of the hollow hole 133 .

Then, in a state in which the metal wire 22 is inserted into the hollow hole 133, the lower end is inserted into the insertion hole 137, and the upper end is fixed to the first fixing part 125, and the metal wire 22 is inserted into the insertion hole 137. As the upper part of the wire 22 is inserted into the first vertical groove 127, it can be firmly fixed in a state aligned with the center of the hollow hole 133.

In addition, the metal wire 22 protrudes from the lower part of the hollow hole 133 and is connected to the platinum wire 27 inserted into the insertion hole 137 and the upper part of the platinum wire 27 to make the first As described above, the first copper wire 281 inserted into the vertical groove 127 may be included.

Meanwhile, although not shown in the drawings, on the second support surface 142 of the third horizontal support part 140, similarly to the first support surface 123 of the second horizontal support part 120, the metal wire For example, a second vertical groove portion into which the second copper wire 283 is inserted may be formed at the lower portion of 22.

Like the first vertical groove 127 , the second vertical groove may be formed long in the vertical direction on the center of the hollow hole 133 . For example, the second vertical groove may be formed long in the vertical direction such that the center of the second vertical groove is positioned on the center line 132 of the hollow hole 133 .

Then, in a state in which the metal wire 22 is inserted into the hollow hole 133, the lower end is inserted into the insertion hole 137 and passed through, and the upper end is fixed to the first fixing part 125, As the upper part of the metal wire 22 is inserted into the first vertical groove 127 and the lower part of the metal wire 22 inserted into the insertion hole 137 is inserted into the second vertical groove, It can be more firmly fixed in a state aligned with the center of the hollow hole 133.

In addition, the metal wire 22 protrudes from the lower part of the hollow hole 133 and is connected to the platinum wire 27 inserted into the insertion hole 137 and the upper part of the platinum wire 27 to make the first It may include a first copper wire 281 inserted into the vertical groove 127 and a second copper wire 283 connected to the lower part of the platinum wire 27 and inserted into the second vertical groove. It's like a bar.

According to the electrode manufacturing apparatus 100 having the above configuration, it can be easily manufactured so that the bottom 24 of the metal wire 22 is positioned at the center of the bottom 34 of the body 33 of the electrode 30. .

As described above, the present invention is an electrode used in a 3D printing device using selective electrochemical electrodeposition capable of selectively laminating a metal raw material on a substrate using a lamination method by electrochemical electrodeposition, and manufacturing of the electrode As it relates to a method and an apparatus for manufacturing the electrode, the embodiment may be changed into various forms. Therefore, the present invention is not limited by the embodiments disclosed herein, and all forms changeable by those skilled in the art will also fall within the scope of the present invention.

10: 3D printing device using selective electrochemical electrodeposition
20, 30: Electrode for 3D printing device using selective electrochemical electrodeposition
100: Electrode manufacturing device for 3D printing device using selective electrochemical electrodeposition

Claims (14)

In the electrode used in a three-dimensional printing device using selective electrochemical electrodeposition capable of selectively laminating a metal raw material on a substrate using a layering method by electrochemical electrodeposition,
glass tube;
a metal wire penetrating the glass tube; and
A sealing part sealing the upper part of the glass tube in a state in which the metal wire protrudes; includes,
The lower part of the glass tube is sealed,
An electrode for a three-dimensional printing device using selective electrochemical electrodeposition, characterized in that the bottom of the metal wire is exposed in a flat state with the bottom of the bottom of the glass tube at the center of the bottom of the bottom of the sealed glass tube. According to claim 1,
The metal wire comprises a platinum wire forming the bottom of the metal wire, and a copper wire connected to the platinum wire and protruding outside the sealing portion Electrode for a three-dimensional printing device using selective electrochemical electrodeposition. According to claim 1,
The lower sealing of the glass tube is formed by applying heat to the lower part of the glass tube,
The sealing portion electrode for a three-dimensional printing device using selective electrochemical electrodeposition, characterized in that formed by coating the upper portion of the glass tube with silicon. According to any one of claims 1 to 3,
The three-dimensional printing device using the selective electrochemical electrodeposition,
a tub accommodating the electrolyte;
a substrate placed in a state of being immersed in the electrolyte contained in the tub;
an electrode holder to which the electrode is fixed;
a power supply unit for applying power to the substrate and the electrode;
a driving unit controlling movement of the electrode holder; and
An electrode for a three-dimensional printing device using selective electrochemical electrodeposition, characterized in that it comprises a; control unit for controlling the driving unit and the power supply unit to selectively electrodeposit and stack metal ions included in the electrolyte solution on the substrate. In the manufacturing method of an electrode used in a three-dimensional printing device using selective electrochemical electrodeposition capable of selectively laminating a metal raw material on a substrate using a lamination method by electrochemical electrodeposition,
A metal wire insertion step of inserting a metal wire through the glass tube;
Sealing the lower portion of the glass tube by applying heat to the lower portion of the glass tube;
a polishing step of polishing the bottom of the sealed glass tube so that the bottom of the metal wire is exposed in a flat state with the bottom of the glass tube; and
A method of manufacturing an electrode for a 3D printing device using selective electrochemical electrodeposition, comprising: sealing an upper portion of the glass tube by applying silicon to the upper portion of the glass tube to seal the upper portion of the glass tube in a state in which the metal wire protrudes. . According to claim 5,
The metal wire includes a platinum wire formed on the bottom of the metal wire and exposed to the bottom of the flat glass tube, and a copper wire connected to the platinum wire and protruding upward from the top of the glass tube,
The method of manufacturing an electrode for a three-dimensional printing device using selective electrochemical electrodeposition, characterized in that it comprises a step of forming a metal wire connecting the platinum wire and the copper wire. In the electrode used in a three-dimensional printing device using selective electrochemical electrodeposition capable of selectively laminating a metal raw material on a substrate using a layering method by electrochemical electrodeposition,
It includes a body made of a thermosetting resin and a metal wire that is insert-molded while penetrating the center of the body,
At the center of the bottom of the body, the bottom of the metal wire is exposed in a flat state with the bottom of the body,
An electrode for a three-dimensional printing device using selective electrochemical electrodeposition, characterized in that the upper portion of the metal wire protrudes outward from the upper portion of the body. According to claim 7,
The metal wire is for a three-dimensional printing device using selective electrochemical deposition, characterized in that it comprises a platinum wire exposed to the center of the bottom of the body, and a copper wire connected to the platinum wire and protruding outward from the upper part of the body. electrode. According to claim 7,
An electrode for a three-dimensional printing device using selective electrochemical electrodeposition, characterized in that the lower portion of the body has a taper shape. According to any one of claims 7 to 9,
The three-dimensional printing device using the selective electrochemical electrodeposition,
a tub accommodating the electrolyte;
a substrate placed in a state of being immersed in the electrolyte contained in the tub;
an electrode holder to which the electrode is fixed;
a power supply unit for applying power to the substrate and the electrode;
a driving unit controlling movement of the electrode holder; and
An electrode for a three-dimensional printing device using selective electrochemical electrodeposition, characterized in that it comprises a; control unit for controlling the driving unit and the power supply unit to selectively electrodeposit and stack metal ions included in the electrolyte solution on the substrate. In the manufacturing method of an electrode used in a three-dimensional printing device using selective electrochemical electrodeposition capable of selectively laminating a metal raw material on a substrate using a lamination method by electrochemical electrodeposition,
Mold preparation step of preparing a mold having a hollow hole;
a metal wire insertion step of inserting a metal wire through the hollow hole;
a metal wire fixing step of aligning and fixing the metal wire to the center of the hollow hole;
an insert molding step of injecting and curing a thermosetting resin into the hollow hole to form a body of the electrode that is insert-molded in a state in which the metal wire passes through the hollow hole;
a mold separation step of separating the insert-molded body from the mold with the metal wire penetrating therethrough; and
3D printing using selective electrochemical electrodeposition comprising a; polishing step of polishing the lower surface of the insert-molded body with the metal wire passing therethrough to make the lower surface of the metal wire flat with the lower surface of the body. Method for manufacturing an electrode for a device. According to claim 11,
The electrode manufacturing method comprises a processing step of processing the lower part of the body in which the metal wire is insert-molded into a tapered shape. According to claim 11,
The metal wire includes a platinum wire that forms a bottom surface of the metal wire and is exposed in the center of the bottom surface of the body, and a copper wire connected to the platinum wire and protruding upward from the top of the body;
The method of manufacturing an electrode for a three-dimensional printing device using selective electrochemical electrodeposition, characterized in that it comprises a step of forming a metal wire connecting the platinum wire and the copper wire. According to claim 11,
The mold is a glass tube, and the mold separation step is a method of manufacturing an electrode for a three-dimensional printing device using selective electrochemical electrodeposition, characterized in that the glass tube is damaged and removed.

Images