KR20190115533A - Dual nozzle system, 3d printer using the system and method of making 3d things - Google Patents

Abstract

The present invention relates to a dual nozzle system, to a 3D printer using a dual nozzle system, and to a 3D shape implementation method using a dual nozzle. The dual nozzle system comprises: a first nozzle module for outputting a first to-be-printed material toward a bed; a second nozzle module for outputting a second to-be-printed material having a diameter narrower than the first to-be-printed material toward the bed; and a control module controlling the first nozzle module to output the first to-be-printed material in units of plane according to 3D shape data to form a pattern layer, controlling the second nozzle module so that the second to-be-printed material is output toward the pattern layer formed by the first nozzle module, and printing a 3D shape according to the 3D shape data on the bed.

Description

DUAL NOZZLE SYSTEM, 3D PRINTER USING THE SYSTEM AND METHOD OF MAKING 3D THINGS}

The present invention relates to a dual nozzle system, a three-dimensional printing apparatus to which a dual nozzle system is applied, and a three-dimensional shape realization method using a dual nozzle. More specifically, a dual nozzle system and a dual nozzle system to increase the resolution of a three-dimensional printed matter. The present invention relates to a three-dimensional printing method using the applied three-dimensional printing apparatus and a dual nozzle.

Recently, research has been actively conducted on 3D printers capable of printing 3D solid objects as well as 2D printers. Three-dimensional printer is a device for manufacturing a three-dimensional object by stacking the material in the form of a liquid or powder according to the design data in a process and lamination method. Various three-dimensional printers have been developed to date, and among them, Fused Deposition Modeling (FDM) is a representative method.

In the melt deposition modeling method, thin filament-like thermoplastics are melted in a nozzle and stacked in a thin film form. Therefore, the nozzle emits high heat enough to melt the plastic, and the plastic must be able to cure at room temperature.

However, the melt deposition modeling method is limited in reducing the diameter of the plastic by injecting the molten material through the output nozzle. That is, it is difficult to print the result with details, and the overall quality is low, such as the surface is not smooth.

One side of the present invention is the second nozzle to output a first to-be-printed material and the second to-be-printed material having a diameter narrower than the first to-be-printed material so as to complement the shape of the first to-be-printed material. Provided is a dual nozzle system comprising a nozzle module.

Another aspect of the present invention provides a three-dimensional printing apparatus to which a dual nozzle system is applied to perform two printings.

Another aspect of the present invention is to form a pattern layer by outputting the first to-be-printed material in units of planes according to the three-dimensional shape data and at the same time using a dual nozzle to output a second to-be-printed material for complementing the pattern layer. Provides a method of implementing a dimensional shape.

The dual nozzle system according to an aspect of the present invention for solving the above problems is a first nozzle module for outputting the first to-be-printed material toward the bed, the composite conductive yarn, the diameter narrower than the first to-be printed material toward the bed A second nozzle module for outputting a second to-be-printed material, and controlling the first nozzle module to output the first to-be-printed material in unit of planes according to three-dimensional shape data to form a pattern layer, A control module for controlling the second nozzle module to output the second to-be-printed material toward the pattern layer formed by the first nozzle module, so that the three-dimensional shape according to the three-dimensional shape data is printed on the bed. It may include.

The first nozzle module may output the first to-be-printed material which is a molten filament base material.

The second nozzle module may output the second to-be-printed material which is a conductive polymer solution material.

In addition, the first nozzle module may output the first to-be-printed material in a melt deposition modeling manner.

The second nozzle module may output the second to-be-printed material by an electric polyjet method.

The apparatus may further include a curing module configured to cure the first to-be-printed material or the second to-be-printed material loaded on the bed.

The apparatus may further include a cleaning module for cleaning the remaining to-be-printed material other than the three-dimensional shape data in the first to-be-printed material or the second to-be-printed material loaded on the bed.

The first nozzle module may include a first nozzle part for melting and extruding the first to-be-printed material in a solid state and a first nozzle moving part for supporting X, Y, and Z axis movements and rotations of the first nozzle part. It may include.

The second nozzle module may include a second nozzle portion in which the second substrate is formed in a solution state, and a voltage applying a voltage to the second nozzle unit to radiate the second substrate to induce charge. It may include a generator and a second nozzle moving unit for supporting the X, Y, Z axis movement and rotation of the second nozzle unit.

The control module may control the first nozzle module and the second nozzle module to move side by side so that the first to-be-printed material or the second to-be-printed material is output according to the three-dimensional shape data. have.

The control module may linearly rotate the first nozzle module or the second nozzle module to be horizontal with the bed, and the first or second print material may be changed according to the three-dimensional shape data. The output angle of the first nozzle module or the second nozzle module may be controlled to be output.

In addition, it may be a three-dimensional printing apparatus to which the dual nozzle system is applied.

In addition, the three-dimensional shape implementation method using a dual nozzle to solve the above problem is to form a pattern layer by outputting the first to-be-printed material on the bed in units of planes according to the three-dimensional shape data using the first nozzle module, Whenever the pattern layer is formed by the first to-be-printed material, a second diameter having a narrower diameter than that of the first to-be-printed material on the pattern layer or the bed according to the three-dimensional shape data using a second nozzle module. The shape of the pattern layer may be compensated by outputting the material to be printed.

The method may further include curing the first to-be-printed material laminated on the bed when the output of the first to-be-printed material is completed in units of planes according to three-dimensional shape data.

The method may further include curing the second to-be-printed material laminated on the pattern layer or the bed when the output of the second to-be-printed material is completed on the pattern layer or the bed.

According to the present invention, the dual nozzle may be configured to simultaneously perform additional printing to compensate for the shape of the output formed by the to-be-printed material.

In addition, the dual nozzle system is applied to a three-dimensional printing apparatus, which enables printing of a high-precision printout, and improves the quality by smoothing the surface of the printout.

1 is a view showing an application example of a dual nozzle system according to an embodiment of the present invention.
2 is a conceptual diagram showing the configuration of a dual nozzle system according to an embodiment of the present invention.
3 is a conceptual diagram illustrating a configuration of the first nozzle module illustrated in FIG. 2.
4 is a conceptual diagram illustrating a configuration of the second nozzle module illustrated in FIG. 2.
5 and 6 are views showing an example of use of a dual nozzle system according to another embodiment of the present invention.
7 is a flow chart of a three-dimensional shape implementation method using a dual nozzle according to an embodiment of the present invention.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

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

1 is a view showing an application example of a dual nozzle system according to an embodiment of the present invention.

Referring to FIG. 1, a dual nozzle system 1000 according to an exemplary embodiment may include a first nozzle module 100, a second nozzle module 200, and a control module 300.

The first nozzle module 100 may output the first to-be-printed material 101 in a melt deposition modeling manner. The second nozzle module 200 may output the second to-be-printed material 201 by an electric polyjet method. The control module 300 may control operations of the first nozzle module 100 and the second nozzle module 200.

The dual nozzle system 1000 according to an embodiment of the present invention may be applied to a 3D printing apparatus. A three-dimensional printing apparatus is a device that obtains three-dimensional shape data by scanning an object to be output with a three-dimensional scanner, and creates a three-dimensional object by using the three-dimensional shape data. The three-dimensional shape can be implemented by laminating a layer by layer.

The dual nozzle system 1000 according to the exemplary embodiment of the present invention may include a dual nozzle including the first nozzle module 100 and the second nozzle module 200, and may perform two printings. That is, according to the dual nozzle system 1000 according to the exemplary embodiment of the present invention, the control module 300 moves the first nozzle module 100 according to three-dimensional shape data while the first substrate 101 is bedbed. It can be controlled to be output on (10). The control module 300 moves the second to-be-printed material while moving the second nozzle module 200 so that the shape of the output formed by the first to-be-printed material 101 can be supplemented according to the three-dimensional shape data. 201 may be controlled to be output on the bed 10 or the first to-be-printed material 101.

As such, the dual nozzle system 1000 according to the exemplary embodiment of the present invention may be configured with dual nozzles to simultaneously perform additional printing for complementing the shape of the output formed by the to-be-printed material. The dual nozzle system 1000 according to an embodiment of the present invention may be applied to a three-dimensional printing apparatus to improve the quality by smoothing the surface of the output.

Hereinafter, each configuration of the dual nozzle system 1000 according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 2 to 4.

2 is a conceptual diagram illustrating a configuration of a dual nozzle system according to an exemplary embodiment of the present disclosure, FIG. 3 is a conceptual diagram illustrating a configuration of the first nozzle module illustrated in FIG. 2, and FIG. 4 is a second diagram illustrated in FIG. 2. It is a conceptual diagram which shows the structure of a nozzle module.

Referring to FIG. 2, the dual nozzle system 1000 according to an embodiment of the present invention may include a first nozzle module 100, a second nozzle module 200, a control module 300, a curing module 400, and a cleaning. Module 500 may be included.

The first nozzle module 100 may output the first to-be-printed material 101 toward the bed 10 of the 3D printing apparatus according to the 3D shape data. The first nozzle module 100 may output the first to-be-printed material 101 in a melt deposition modeling manner. The first to-be-printed material 101 may be a molten filament base material. The first to-be-printed material may stack approximately 0.75 mm of fiber on the bed 10. To this end, referring to FIG. 3, the first nozzle module 100 may include a first nozzle unit 110 and a first nozzle moving unit 130.

The first nozzle unit 110 may be configured to implement a melt deposition modeling method. For example, the first nozzle unit 110 may include a storage unit in which the first substrate 101 in the solid state is wound, an opening through which the first substrate 101 in the solid state is unwinded and introduced therein, It may be composed of a flow path for heating and melting the first to-be-printed material 101 to change into a liquid state, a heating unit for heating the flow path, and a discharge part for discharging the first to-be-printed material 101 in a liquid state. .

The first nozzle unit 110 may discharge the first substrate 101 in the liquid state onto the bed 10 by adopting a melt deposition modeling method. That is, the first nozzle unit 110 may melt and extrude the first to-be-printed material 101 in a solid state.

The first nozzle moving unit 130 may support the X, Y, Z axis movement and rotation of the first nozzle unit 110. The first nozzle moving unit 130 enables the movement and rotation of the first nozzle unit 110 by the angle control according to the motor driving. For example, the first nozzle moving unit 130 may include four motors and a system for controlling the same.

The second nozzle module 200 may output the second to-be-printed material 201 toward the bed 10 of the 3D printing apparatus according to the 3D shape data. The second nozzle module 200 may output the second to-be-printed material 201 by an electric polyjet method. The second substrate may be a conductive polymer solution material. The second to-be-printed material 201 may stack fine fibers of about 0.1 to 0.4 nm on the bed 10. That is, the second to-be-printed material 201 may have a diameter smaller than that of the first to-be-printed material 101 to smoothly process the surface of the shape formed by the first to-be-printed material 101. To this end, referring to FIG. 4, the second nozzle module 200 may include a second nozzle unit 210, a voltage generator 230, and a second nozzle mover 250.

The second nozzle unit 210 may be configured to implement an electric polyjet method. For example, the second nozzle unit 210 is a poly-syringe for storing and supplying the second substrate 201 in a solution state and the second substrate 201 are bound by the surface tension and then the voltage When applied, the charge is induced to the second substrate 201, and thus, the second nozzle 201 is discharged by the mutual repulsive force, and the inner diameter of the micronozzle is approximately 0.1 to 0.4 mm.

The second nozzle unit 210 may discharge the second print material 201 in the liquid state onto the bed 10 or the first print material 101 by adopting an electric polyjet method. That is, the second nozzle unit 210 is formed of the second to-be-printed material 201 in a solution state, and may emit the second to-be-printed material 201 when a voltage is applied by the voltage generator 230 described later. have.

The voltage generator 230 may apply a voltage to the second nozzle unit 210. As described above, when a voltage is applied to the second nozzle unit 210 by the voltage generator 230, charge is induced to the second to-be-printed material 201 formed at the end of the second nozzle unit 210. When the mutual repulsive force by induction is greater than the surface tension of the second to-be-printed material 201, the second to-be-printed material 201 may be output. The voltage generator 230 may apply a voltage of approximately 10 to 100 kV to the second nozzle unit 210.

The second nozzle moving unit 250 may support the X, Y, Z axis movement and rotation of the second nozzle unit 210. The second nozzle moving part 250 enables the movement and rotation of the second nozzle part 210 by the angle control according to the motor driving. For example, the second nozzle moving part 250 may include four motors and a system for controlling the same. The second nozzle mover 250 may operate in the same manner as the first nozzle mover 130 or may operate separately.

The control module 300 may control the first nozzle module 100 and the second nozzle module 200 so that the three-dimensional shape according to the three-dimensional shape data can be printed on the bed 10.

Specifically, the control module 300 may control the first nozzle module 100 to output the first to-be-printed material 101 in units of planes according to three-dimensional shape data. As a result, a pattern layer by the first to-be-printed material 101 may be formed on the bed 10, and the pattern layers may be stacked to form a target three-dimensional shape.

The control module 300 may control the first nozzle moving unit 130 to move or rotate the first nozzle unit 110. The control module 300 may control the first nozzle moving unit 130 to move or rotate the first nozzle unit 110. For example, the control module 300 may control the predetermined area according to the three-dimensional shape data on the bed 10 and the first nozzle unit 110 to face each other through the first nozzle moving unit 130. have. Alternatively, the control module 300 may control the separation interval between the bed 10 and the first nozzle unit 110 through the first nozzle moving unit 130. Alternatively, the control module 300 may control the first nozzle unit 110 to rotate in a cone shape according to a predetermined output angle according to the 3D shape data through the first nozzle moving unit 130.

The control module 300 outputs the second to-be-printed material 201 in units of planes according to three-dimensional shape data each time one pattern layer of the first to-be-printed material 101 is formed in the bed 10. The second nozzle module 200 may be controlled to control the second nozzle module 200. That is, the second to-be-printed material 201 may be output on the pattern layer formed by the bed 10 or the first to-be-printed material 101. As a result, the pattern layer formed by the first to-be-printed material 101 may be more precise, or may be output between the pattern layers formed and stacked by the first to-be-printed material 101 to be targeted. The surface of the shape can be smoothed. This is because the second to-be-printed material 201 has a smaller diameter than the first to-be-printed material 101. Alternatively, if necessary, the output of the second to-be-printed material 201 may be omitted.

The control module 300 may control the second nozzle moving unit 250 to move or rotate the second nozzle unit 210. The control module 300 outputs the second print material 201 in units of planes according to three-dimensional shape data to fill the empty portion of the pattern layer formed by the first print material 101. The second nozzle unit 210 may be moved or rotated to compensate for this. For example, the control module 300 may include a predetermined area and a second area according to three-dimensional shape data on the pattern layer formed by the bed 10 or the first to-be-printed material 101 through the second nozzle moving part 250. The nozzle unit 210 may be controlled to face each other. Alternatively, the control module 300 may control the separation interval between the bed 10 and the second nozzle unit 210 through the second nozzle moving unit 250. Alternatively, the control module 300 may control the second nozzle unit 210 to rotate in a cone shape according to a predetermined output angle according to the 3D shape data through the second nozzle moving unit 250.

On the other hand, the control module 300 controls the first nozzle module 100 and the second nozzle module 200 side by side according to the discharge method of the print material, or the first nozzle module 100 and the second nozzle module 200 ) Can be controlled separately. That is, the control module 300 may control the first nozzle module 100 and the second nozzle module 200 according to a discharge method such as a drop on demand method, a straight jet method, a spinning jet method, or the like.

Specifically, according to an embodiment of the present invention, the control module 300 is a first nozzle module 100 and the second nozzle module 200 to form a pattern layer in units of planes according to the three-dimensional shape data It can be controlled to move side by side. In this case, the first nozzle module 100 and the second nozzle module 200 are provided at a predetermined distance apart from each other, as shown in FIG. The printing material 201 may be output. That is, the second nozzle module 200 may be shaped to be spaced apart from the first nozzle module 100 by a predetermined distance, and the second nozzle module 200 may be formed on the first to-be-printed material 101 simultaneously with the output of the first to-be-printed material 101. 2 The to-be-printed material 201 can be output.

Alternatively, according to another embodiment of the present invention, the control module 300 rotates the first nozzle module 100 or the second nozzle module 200 to be horizontal with the bed 10, the first nozzle module The 100 or the second nozzle module 200 may be controlled to rotate according to a predetermined output angle and output the first to-be-printed material 101 or the second to-be-printed material 201. In this regard, it will be described with reference to FIGS. 5 and 6.

5 and 6 are views showing an example of use of a dual nozzle system according to another embodiment of the present invention.

Referring to FIG. 5, according to the dual nozzle system 1000 ′ according to another embodiment of the present invention, the control module 300 may linearly rotate the second nozzle module 200 to be horizontal with the bed 10. have. In addition, the control module 300 may control the first nozzle module 100 to rotate to output the first to-be-printed material 101 according to a predetermined output angle for forming the pattern layer according to the 3D shape data. .

When one pattern layer is formed on the bed 10 by the first to-be-printed material 101, as shown in FIG. 6, the control module 300 includes the first nozzle module 100 having the bed 10. It can be rotated linearly to be horizontal with. In addition, the control module 300 may control the second nozzle module 200 to be rotated according to a predetermined output angle for complementing the pattern layer according to the 3D shape data so that the second printed matter 201 is output. .

Referring to FIG. 2 again, the curing module 400 may cure the first substrate 101 or the second substrate 201 loaded on the bed 10.

The curing module 400 may harden the substrate to be in a liquid state by using any one of a laser curing method, a lamp curing method, a heat treatment method, or an ultraviolet curing method.

The curing module 400 may cure the first to-be-printed material 101 or the second to-be-printed material 201 output to the bed 10. The control module 300 may control the second substrate 201 to be output when the first substrate 101 is cured. This is because if the second to-be-printed material 201 is laminated in a state in which the first to-be-printed material 101 is a liquid, it cannot collapse its shape.

The cleaning module 500 may wash the remaining substrate generated from the first substrate 101 or the second substrate 201 on the bed 10. The cleaning module 500 includes remaining substrates other than the substrates forming the three-dimensional shape according to the three-dimensional shape data among the first substrate 101 or the second substrate 201 loaded on the bed 10. Can be washed. For example, the cleaning module 500 may include the same tray as the outer circumferential surface of the desired three-dimensional shape, and the first to-be-printed material 101 or the second to-be-printed material 201 is disposed on the bed 10. Whenever stacked in units, a tray may be installed and the remaining material in the liquid state may be washed using an ultrasonic cleaner or the like.

Hereinafter, a three-dimensional shape forming method according to the dual nozzle system 1000 will be described.

7 is a flow chart of a three-dimensional shape implementation method using a dual nozzle according to an embodiment of the present invention.

Referring to FIG. 7, the control module 300 may receive three-dimensional shape data (700). Three-dimensional shape data is data on the shape of the desired output, which can be obtained by scanning with a three-dimensional scanner.

The first nozzle module 100 may form the pattern layer by outputting the first to-be-printed material 101 according to the three-dimensional shape data under the control of the control module 300 (710).

The first nozzle module 100 may form the pattern layer by outputting the first to-be-printed material 101 in units of planes according to three-dimensional shape data. The first nozzle module 100 may output the first to-be-printed material 101 in a melt deposition modeling manner. The first to-be-printed material 101 may be a molten filament base material. The first nozzle module 100 may move and rotate in the X, Y, and Z axes so that the 3D shape according to the 3D shape data may be printed on the bed 10.

The first to-be-printed material 101 loaded onto the bed 10 by the first nozzle module 100 may be cured and washed 720.

The curing module 400 may cure the first to-be-printed material 101 output to the bed 10 using any one of a laser curing method, a lamp curing method, a heat treatment method, or an ultraviolet curing method. have. The cleaning module 500 may clean the remaining substrates other than the first substrate 101 forming the three-dimensional shape according to the three-dimensional shape data among the first substrates 101 loaded on the bed 10. have.

The second nozzle module 200 may complement the pattern layer by outputting the second to-be-printed material 201 according to the three-dimensional shape data under the control of the control module 300 (730).

The second nozzle module 200 may complement the pattern layer by outputting the second to-be-printed material 201 in units of planes according to three-dimensional shape data. For example, the second nozzle module 200 may output the second print material 201 on the pattern layer formed by the bed 10 or the first print material 101. As a result, the pattern layer formed by the first to-be-printed material 101 may be more precise, or may be output between the pattern layers formed and stacked by the first to-be-printed material 101 to be targeted. The surface of the shape can be smoothed. The second substrate may be a conductive polymer solution material. The second to-be-printed material 201 may stack fine fibers of about 0.1 to 0.4 nm on the bed 10. That is, the second to-be-printed material 201 may have a diameter smaller than that of the first to-be-printed material 101 to smoothly process the surface of the shape formed by the first to-be-printed material 101.

The second to-be-printed material 201 loaded onto the bed 10 or the first to-be-printed material 101 by the second nozzle module 200 may be cured and washed 740.

The curing module 400 may cure the second substrate 201 output to the bed 10 using any one of a laser curing method, a lamp curing method, a heat treatment method, or an ultraviolet curing method. have. The cleaning module 500 may clean the remaining substrates other than the second substrate 201 forming the three-dimensional shape according to the three-dimensional shape data among the second substrates 201 loaded on the bed 10. have.

The control module 300 may repeat the above steps until a pattern layer corresponding to all surfaces according to the 3D shape data is formed (750).

Such a three-dimensional shape implementation method using a dual nozzle according to an embodiment of the present invention is implemented in the form of program instructions that can be implemented as an application or executed through various computer components to be recorded on a computer-readable recording medium. Can be. The computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination.

The program instructions recorded on the computer-readable recording medium are those specially designed and configured for the present invention, and may be known and available to those skilled in the computer software arts.

Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical recording media such as CD-ROMs, DVDs, and magneto-optical media such as floptical disks. media), and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like.

Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules to perform the process according to the invention, and vice versa.

Although the above has been described with reference to the embodiments, those skilled in the art will understand that various modifications and changes can be made without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

1000: dual nozzle system
100: first nozzle module
101: first substrate
200: second nozzle module
201: second substrate
300: control module
400: curing module
500: washing module
10: Bed

Claims (15)

A first nozzle module for outputting a first to-be-printed material toward the bed;
A second nozzle module configured to output a second to-be-printed material having a diameter narrower than the first to-be-printed material toward the bed; And
The first nozzle module is controlled to output the first to-be-printed material in units of planes according to three-dimensional shape data to form a pattern layer, and the second nozzle is directed toward the pattern layer formed by the first nozzle module. And a control module for controlling the second nozzle module to output the printed matter, such that a three-dimensional shape according to the three-dimensional shape data is printed on the bed. The method of claim 1,
The first nozzle module,
A dual nozzle system for outputting the first substrate to be a molten filament base material. The method of claim 1,
The second nozzle module,
A dual nozzle system for outputting the second substrate to be a conductive polymer solution material. The method of claim 1,
The first nozzle module,
A dual nozzle system for outputting the first substrate by melt deposition modeling. The method of claim 1,
The second nozzle module,
A dual nozzle system for outputting the second to-be-printed material by an electric polyjet method. The method of claim 1,
And a curing module for curing the first substrate or the second substrate loaded on the bed. The method of claim 1,
And a cleaning module for cleaning the remaining substrates other than the three-dimensional shape data in the first substrate or the second substrate loaded on the bed. The method of claim 1,
The first nozzle module,
A first nozzle unit for melting and extruding the first to-be-printed material in a solid state; And
Dual nozzle system including a first nozzle moving unit for supporting the X, Y, Z axis movement and rotation of the first nozzle unit. The method of claim 1,
The second nozzle module,
A second nozzle unit in which the second to-be-printed material is formed in a solution state and radiates the second to-be-printed material when charge is induced;
A voltage generator for applying a voltage to the second nozzle unit; And
Dual nozzle system including a second nozzle moving portion for supporting the X, Y, Z axis movement and rotation of the second nozzle portion. The method of claim 1,
The control module,
The dual nozzle system controls the first nozzle module and the second nozzle module to move side by side so that the first to-be-printed material or the second to-be-printed material can be output according to the three-dimensional shape data. The method of claim 1,
The control module,
The first nozzle module or the second nozzle module is rotated linearly so as to be horizontal with the bed, and the first to print material or the second print material according to the three-dimensional shape data can be outputted Dual nozzle system for controlling the output angle of the nozzle module or the second nozzle module. A three-dimensional printing apparatus to which the dual nozzle system according to claim 1 is applied. By using the first nozzle module to output the first to-be-printed material on the bed in units of planes according to the three-dimensional shape data to form a pattern layer,
Whenever the pattern layer is formed by the first to-be-printed material, a second diameter having a narrower diameter than that of the first to-be-printed material on the pattern layer or the bed according to the three-dimensional shape data using a second nozzle module. A three-dimensional shape realization method using a dual nozzle to output the print material to complement the shape of the pattern layer. The method of claim 13,
When the output of the first to-be-printed material is completed in units of planes according to the three-dimensional shape data, the method of implementing a three-dimensional shape using a dual nozzle further comprising curing the first to-be-printed material laminated on the bed. The method of claim 13,
When the output of the second to-be-printed material is completed on the pattern layer or the bed, the three-dimensional shape is realized using a dual nozzle further comprising curing the second to-be-printed material stacked on the pattern layer or the bed. Way.