KR101644017B1 - Support laminating system for three dimensionally printed structure and three dimensional printing method using the same - Google Patents

Support laminating system for three dimensionally printed structure and three dimensional printing method using the same Download PDF

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Publication number
KR101644017B1
KR101644017B1 KR1020150050589A KR20150050589A KR101644017B1 KR 101644017 B1 KR101644017 B1 KR 101644017B1 KR 1020150050589 A KR1020150050589 A KR 1020150050589A KR 20150050589 A KR20150050589 A KR 20150050589A KR 101644017 B1 KR101644017 B1 KR 101644017B1
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KR
South Korea
Prior art keywords
viscoelastic solution
dimensional printing
supply unit
chamber
viscoelastic
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Application number
KR1020150050589A
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Korean (ko)
Inventor
최경현
당현우
김형찬
고정범
양봉수
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제주대학교 산학협력단
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Publication of KR101644017B1 publication Critical patent/KR101644017B1/en

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    • B29C67/0085—
    • B29C67/0088—
    • B29C67/0092—
    • B29C67/0096—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)

Abstract

According to the present invention, disclosed are a support structure layering system for a three-dimensional printed structure; and a three-dimensional printing method using the same. The support structure layering system for a three-dimensional printed structure can easily apply a support structure and remove the same during a three-dimensional printing process. The support structure layering system for a three-dimensional printed structure comprises: a chamber forming a closed structure by a side wall; a bed plate which is mounted on the lower part of the chamber to support a three-dimensional printed structure, and has penetrating holes; and a viscoelastic solution supply unit which is connected to the penetrating holes, and supplies a viscoelastic solution into the chamber in order to support a lamination material during a layering process of the lamination material to form the three-dimensional printed structure. The viscoelastic solution supply unit sequentially injects the viscoelastic solution into each layer where the lamination material is layered so that the viscoelastic solution has the same height as the layer.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supporting structure laminating system for a three-dimensional printing structure, and a three-dimensional printing method using the same.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supporting structure laminating system for laminating a supporting structure used to prevent deflection of a three-dimensional structure during three-dimensional printing, and a three-dimensional printing method using the same.

3D printing is a kind of technology for producing three dimensional objects by stacking layers of thin films made by spraying and solidifying powder or liquid. This 3D printing technology is a technique of making actual products And it is widely used to identify the problem of the actual product by producing the same prototype.

The three-dimensional printing technology is briefly described as follows. The object to be created is stored as image data through three-dimensional scanning, and then the object drawn in three dimensions is cut as if it is differential, The process consists of stacking layers (layers) one by one and completing the objects from the bottom to the top (rapid prototyping).

As a method for preventing sagging of a three-dimensional structure in the process of laminating such a layer, a method of laminating the supporting structures for stacking the layers for the three-dimensional structure is used.

However, according to this method, there is a problem that additional material is consumed in the stacking of the supporting structure, and when the three-dimensional structure is completed, the supporting structure must be removed.

Japanese Patent Application Laid-Open No. 10-1407050 (June 4, 2014)

DISCLOSURE Technical Problem The present invention has been made to solve the above problems and it is an object of the present invention to provide a support structure laminating system of a three-dimensional printing structure capable of easily applying and removing a supporting structure in a three- .

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise forms disclosed. Other objects, which will be apparent to those skilled in the art, It will be possible.

According to an aspect of the present invention, there is provided a printing apparatus including a chamber for forming a closed structure by sidewalls, a bed plate provided at a lower portion of the chamber for supporting a three-dimensional printing structure and having a through- And a viscoelastic solution supply unit for supplying a viscoelastic solution for supporting the layered material when the layered material is formed for forming the 3D printing structure into the chamber, And the viscoelastic solution having the same height as the layer is sequentially injected into the support structure stacking system of the three-dimensional printing structure.

According to the support structure laminating system of the three-dimensional printing structure of the present invention, the viscoelastic solution supply unit includes: a storage tank connected to a through hole of the bed plate and accommodating the viscoelastic solution; A control valve provided between the accommodation tank and the pneumatic pressure applying unit, and a control unit for controlling the operation of the pneumatic pressure applying unit and the control valve.

According to another aspect of the present invention, there is provided a method of forming a three-dimensional printing structure, the method including a laminating step of laminating a laminated material to form a layer constituting the three-dimensional printing structure, and a viscoelastic solution injecting step of injecting the viscoelastic solution at the same height as the layer, Dimensional printing structure is formed by alternately repeating the laminating step and the viscoelastic solution injecting step to form the three-dimensional printing structure.

According to the three-dimensional printing method of the present invention, the layered material and the viscoelastic solution may be formed of a material that does not mix with each other.

The three-dimensional printing method of the present invention may further include, after completion of the formation of the three-dimensional printing structure, the viscoelastic solution supply unit recovering the viscoelastic solution through the through-holes of the bed plate.

According to the present invention, it is possible to provide a support structure stacking system in which the support structure is easily applied and removed by injecting a viscoelastic solution into a chamber in which the stacked materials are stacked.

Also, after the formation of the three-dimensional printing structure is completed, the viscoelastic solution can be recovered and the supporting structure can be reused, thereby solving the problem that the material used for the supporting structure is consumed.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a support structure laminating system of a three-dimensional printing structure according to an embodiment of the present invention. Fig.
FIG. 2 is a view sequentially illustrating a three-dimensional printing method using the supporting structure laminating system of the three-dimensional printing structure shown in FIG. 1; FIG.
3 is a view showing a viscoelastic solution recovery process after completion of formation of a three-dimensional printing structure.

Hereinafter, a support structure laminating system for a three-dimensional printing structure and a three-dimensional printing method using the same will be described in detail with reference to the drawings.

1 is a view illustrating a support structure laminating system of a three-dimensional printing structure according to an embodiment of the present invention.

Referring to FIG. 1, the support structure stacking system of the three-dimensional printing structure includes a chamber 110, a bed plate 120, and a viscoelastic solution supply unit 130.

The chamber 110 has sidewalls forming a closed structure and provides a space in which a three-dimensional printing process is performed. That is, a laminating process for forming the three-dimensional printing structure 200 is performed in the space surrounded by the side wall of the chamber 110.

The bed plate 120 is installed at a lower portion of the chamber 110 and functions to support the three-dimensional printing structure 200. The stacking process of the three-dimensional printing structure 200 is performed on the upper surface of the bed plate 120.

A through hole 125 is formed in the bed plate 120 to inject the viscoelastic solution 300 into the chamber 110 or to discharge the viscoelastic solution 300 in the chamber 110. The through-holes 125 may be provided on the bed plate 125 in a plurality of numbers.

The viscoelastic solution supply unit 130 is connected to the through hole 125 of the bed plate 120 and functions to supply the viscoelastic solution 300 into the chamber 110 during the 3D printing process.

The viscoelastic solution 300 functions to support the laminated material when the laminated material (for example, a liquid resin) for forming the three-dimensional printing structure 200 is laminated. The viscoelastic solution 300 is a liquid having properties of a liquid and a solid at the same time. When injected into the chamber 110, the viscoelastic solution 300 has a liquid-like property and is solidified like a solid after injection, And has a strong rigidity to support it. The laminate material and the viscoelastic solution 300 should be formed of a material that does not intermix with each other.

The viscoelastic solution supply unit 130 is configured to sequentially inject the viscoelastic solutions 310 and 320 having the same height for each of the layers 210 and 220 on which the layered materials are stacked. The viscoelastic solution supply unit 130 can be configured to control the supply of the viscoelastic solution 300 by pneumatic pressure and is configured to control the supply of the viscous solution 300 to the reservoir tank 131, , A control unit, and the like.

The accommodation tank 131 is connected to the through hole 125 of the bed plate 120 and accommodates the viscoelastic solution 300 therein.

The pneumatic pressure application unit 132 is for applying pneumatic pressure to the accommodation tank 300 and includes a negative pressure application unit 132a and a static pressure application unit 132b for applying a negative pressure (negative pressure) and a positive pressure (positive pressure) . The negative pressure application part 132a and the static pressure application part 132b are selectively operated to discharge the viscoelastic solution 300 of the accommodation tank 131 or to suck the viscoelastic solution 300 into the accommodation tank 131. [

The control valve 133 is provided between the accommodation tank 131 and the air pressure applying unit 132 to intermittently control the flow of the air pressure. The control valve 133 may be connected to the storage tank 131, the negative pressure applying unit 132a, and the constant pressure applying unit 132b in the form of a three-way valve.

The control unit is configured to control the operation of the air pressure applying unit 132 and the control valve 133. The control unit controls the operation of the static pressure applying unit 132b and the control valve 133 so that the viscoelastic solution 300 is injected into the chamber 110 by a predetermined amount (amount corresponding to each layer). The negative pressure applying section 132a and the static pressure applying section 132b may be provided with an air valve 134 for controlling the inflow and outflow of air, which is operated under the control of the control section.

FIG. 2 is a view sequentially showing a three-dimensional printing method using the supporting structure laminating system of the three-dimensional printing structure shown in FIG. 1, and FIG. 3 is a view showing a viscoelastic solution collecting process after the formation of the three-dimensional printing structure is completed.

First, as shown in FIG. 2 (a), a layer 210 is formed by stacking a layered material to form a three-dimensional printing structure 200. The viscoelastic solution 310 is injected at the same height as the layer 210 as shown in FIG.

Next, another layer 220 is formed by laminating a layered material on the layer 210 laminated in the step (a) as shown in (c). Then, the viscoelastic solution 320 is injected at the same height as the layer 220 as shown in (d). As a result, the viscoelastic solution 310 in the chamber 110 is pushed upward.

(B) and (d) of the viscoelastic solution 300 are alternately repeated so that the three-dimensional printing structure to be produced as shown in (e) (200) can be completed.

After the formation of the three-dimensional printing structure 200 is completed as shown in FIG. 3, the viscoelastic solution supply unit 130 may be operated to recover the viscoelastic solution 300. When the control unit operates the negative pressure applying unit 132a to apply a negative pressure to the accommodation tank 131, the viscoelastic solution 300 in the chamber 110 is supplied to the accommodation tank 131 through the through hole 125 of the bed plate 120 ). ≪ / RTI > The viscoelastic solution thus recovered in the receiving tank 131 can be reused in a subsequent 3D printing process.

The support structure stacking system of the three-dimensional printing structure and the three-dimensional printing method using the three-dimensional printing structure described above are not limited to the structure and method of the embodiment described above, but various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention .

Claims (5)

A chamber defining a closed structure by sidewalls;
A bed plate provided at a lower portion of the chamber to support the three-dimensional printing structure and having a through-hole; And
And a viscoelastic solution supply unit connected to the through-hole for supplying a viscoelastic solution for supporting the layered material into the chamber when stacking the layered material for forming the three-dimensional printing structure,
Wherein the viscoelastic solution supply unit sequentially injects a viscoelastic solution having the same height as the layer for each layer on which the layered material is stacked. 2. The viscoelastic solution supply unit according to claim 1,
A receiving tank connected to a through hole of the bed plate and accommodating the viscoelastic solution;
A pneumatic pressure applying unit for applying a pneumatic pressure to the storage tank;
A control valve installed between the accommodation tank and the pneumatic pressure applying unit; And
And a control unit for controlling operations of the pneumatic pressure applying unit and the control valve. A three-dimensional printing method using a supporting structure laminating system of a three-dimensional printing structure according to claim 1,
A laminating step of laminating the laminated materials to form a layer constituting the three-dimensional printing structure;
Wherein the viscoelastic solution supply unit injects the viscoelastic solution at the same height as the layer,
Wherein the three-dimensional printing structure is formed by alternately repeating the laminating step and the viscoelastic solution injecting step. The method of claim 3,
Wherein the layered material and the viscoelastic solution are formed of a material that does not mix with each other. The method of claim 3,
After completion of the formation of the three-dimensional printing structure,
Wherein the viscoelastic solution supply unit recovers the viscoelastic solution through a through-hole of the bed plate.

KR1020150050589A 2015-04-10 2015-04-10 Support laminating system for three dimensionally printed structure and three dimensional printing method using the same KR101644017B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111836720A (en) * 2018-01-16 2020-10-27 西门子股份公司 Support structure for three-dimensional printing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000505737A (en) * 1996-09-04 2000-05-16 ズィー コーポレイション Three-dimensional plate material system and its use
US20080111282A1 (en) * 2006-11-10 2008-05-15 Baojun Xie Process for Making Three Dimensional Objects From Dispersions of Polymer Colloidal Particles
KR20130141561A (en) * 2010-11-01 2013-12-26 가부시키가이샤 키엔스 Modeling material for forming photoshaped article by ink-jet photoshaping method, support material for shape supporting during formation of photoshaped article by the photoshaping method, and process for producing photoshaped article by the photoshaping method
KR101407050B1 (en) 2013-11-07 2014-06-12 비즈텍코리아 주식회사 3D printer using variable vat layer laminate method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000505737A (en) * 1996-09-04 2000-05-16 ズィー コーポレイション Three-dimensional plate material system and its use
US20080111282A1 (en) * 2006-11-10 2008-05-15 Baojun Xie Process for Making Three Dimensional Objects From Dispersions of Polymer Colloidal Particles
KR20130141561A (en) * 2010-11-01 2013-12-26 가부시키가이샤 키엔스 Modeling material for forming photoshaped article by ink-jet photoshaping method, support material for shape supporting during formation of photoshaped article by the photoshaping method, and process for producing photoshaped article by the photoshaping method
KR101407050B1 (en) 2013-11-07 2014-06-12 비즈텍코리아 주식회사 3D printer using variable vat layer laminate method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111836720A (en) * 2018-01-16 2020-10-27 西门子股份公司 Support structure for three-dimensional printing

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