KR20150114861A - Various colors are implemented three-dimensional printer - Google Patents

Various colors are implemented three-dimensional printer Download PDF

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Publication number
KR20150114861A
KR20150114861A KR1020140039640A KR20140039640A KR20150114861A KR 20150114861 A KR20150114861 A KR 20150114861A KR 1020140039640 A KR1020140039640 A KR 1020140039640A KR 20140039640 A KR20140039640 A KR 20140039640A KR 20150114861 A KR20150114861 A KR 20150114861A
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KR
South Korea
Prior art keywords
filament
nozzle head
ink
mixing chamber
mixing
Prior art date
Application number
KR1020140039640A
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Korean (ko)
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KR101610897B1 (en
Inventor
김동현
강민균
장광현
김성민
Original Assignee
(주) 허브인소프트
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Priority to KR1020140039640A priority Critical patent/KR101610897B1/en
Publication of KR20150114861A publication Critical patent/KR20150114861A/en
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Publication of KR101610897B1 publication Critical patent/KR101610897B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • B29C64/205—Means for applying layers
    • B29C64/209—Heads; Nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • 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
    • B33Y10/00—Processes of additive manufacturing
    • 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

Abstract

The present invention relates to a three-dimensional printer which can print an object to be printed having a surface of a three-dimensional form in various colors and, more specifically, to a three-dimensional printer capable of implementing various colors, where a nozzle head movable to a X, Y and Z axis discharges thermoplastic filament, which is produced capable of forming a product using a color selected by the user after mixing a color to be wanted by a user in the discharged filament.

Description

[0002] VARIOUS COLORS ARE IMPLEMENTED THREE-DIMENSIONAL PRINTER [0003]

The present invention relates to a three-dimensional printer capable of outputting a print object having a three-dimensional surface in various colors. More specifically, the present invention relates to a three-dimensional printer capable of outputting thermoplastic filaments in X, Y, The present invention relates to a three-dimensional printer in which various colors are implemented so that a user can mix colors desired by a user into a filament and then mold the product into a color selected by the user.

Generally, in order to produce a prototype having a three-dimensional shape, there is a mock-up production method manually performed by a design drawing, and a CNC milling production method using a computer control. Such a mock-up manufacturing method is manual, so it is difficult to precisely control the numerical value. It is not precisely matched with the design drawings, and it takes a considerable amount of time. The CNC milling production method allows precise numerical control, There are many disadvantages in that it is difficult to process these parts.

Due to these disadvantages, a three-dimensional printer method has recently emerged in which product designers and designers can directly produce three-dimensional prototypes using three-dimensional modeling created by a computer.

The product molding method of the 3D printer is divided into a so-called additive type in which a target object is formed in a two-dimensional plane form, a so-called additive type in which the object is melted and laminated while being laminated in three dimensions, . As a kind of the additive type, a wire or filament made of thermoplastic plastic is supplied through a supply reel and a transfer roll, and the supplied filament is melted in a heater nozzle mounted on a three-dimensional transfer mechanism relatively positioned with respect to the work table in XYZ three directions There is a filament melt lamination molding method in which a two-dimensional planar shape is formed by discharging it and a three-dimensional object is formed by laminating it on a work table.

Conventionally, a 3D printer which melts and laminated such filaments has conventionally been capable of molding into a single color, but it has been difficult to form products of various colors. In order to replace the color, it is necessary to replace the filament supply reel with a filament supply reel of a different color and then connect it to the heater nozzle again. Therefore, it takes much time to replace the filament, There is a problem that the appearance and integrity of the product deteriorates or the separation or structural strength of the material deteriorates.

However, since a plurality of heater nozzles are provided, the structure of the apparatus is complicated, and it takes a long time to perform the operation, and it is difficult to control the apparatus. Respectively. In addition, filaments having different colors can not be mixed well, resulting in a disadvantage that colors can not be realized in a desired color by a user.

Therefore, it is necessary to develop a three-dimensional printer capable of implementing various colors.

1. Registered patent publication No. 10-1346704 '3D printer capable of forming multicolor product' (registered on Dec. 24, 2013) 2. Open Patent Publication No. 10-2008-0041095 " 3D printer " (published on May 05, 2008) 3. Open Patent Publication No. 10-2013-0038101 'Three-dimensional printer for producing a high-resolution tooth model using multi-projection (Published date 2013.04.17)

In order to solve the problems of the present invention, it is possible to use only one head and one filament, so that a desired color of ink is injected into a filament so that various colors can be implemented in an output product, A three-dimensional printer capable of forming a product by mixing filaments and controlling the injection of ink by a user's choice.

A three-dimensional printer in which various colors are implemented according to the present invention includes a case 100 including a bottom plate 110 having a receiving space D formed therein and being seated on a bottom surface of the receiving space D; A nozzle head 200 located inside the case 100 and heating and melting the filament S supplied from one side and discharging the filament S to the outside; A first driving part 310 for moving the nozzle head 200 in the vertical direction and a second driving part 320 connected to the first driving part 310 to move the nozzle head 200 forward and backward, And a third driving part (330) connected to the second driving part (320) and moving the nozzle head (200) in the lateral direction; A filament supply unit 400 formed at one side of the case 100 to draw the filament S to the nozzle head 200; The inkjet head according to any one of claims 1 to 3, wherein the nozzle head (200) includes a plurality of nozzles (200) (500); The supply amount of the filament S supplied to the nozzle head 200 is adjusted so as to control the discharge amount of the filament S discharged from the nozzle head 200 and the amount of ink injected from the ink header 500 And a control unit (600) for controlling the display unit.

In the present invention, the nozzle head 200 includes an inlet 210 through which the filament S is drawn; A heating unit 221 operated by the control unit 600 to heat the filament S supplied from the inlet unit 210 and the heating unit 221 heating the filament S heated by the heating unit 221, A head body 220 including a mixing chamber 222 in which ink ejected from the mixing chamber 500 is mixed; And a discharge part (230) through which the respective filaments (S) mixed from the mixing chamber (222) are discharged; And a control unit.

In the present invention, a plurality of mixing protrusions 222-1 are formed on the inner surface of the mixing chamber 222 at predetermined intervals along the inner surface of the mixing chamber 222.

In the present invention, the mixing chamber (222) is provided with a mixing plate (700) having a plurality of mixing holes (710) formed therein.

The heating unit 221 may include a first heating unit 221-1 disposed above the head body 220 adjacent to the inlet unit 210 and a second heating unit 221-1 surrounding the mixing chamber 222. [ And a second heating part 221-2 formed in the second heating part 221-2.

The present invention relates to an ink jet recording head capable of outputting a printing object having various colors when an ink jetted from an ink header and a filament melted in a nozzle head are discharged to the outside through a mixing chamber, There is an advantage.

Further, the present invention has an advantage in that a defective color of a printing object can be reduced by allowing a mixed filament and ink to pass through a mixing chamber and to be smoothly mixed and output through a plurality of mixing protrusions and a mixing plate provided in the mixing chamber have.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the overall appearance of a three-dimensional printer according to the present invention. FIG.
2 is a partial perspective view showing a head portion of a three-dimensional printer of the present invention.
3 is a cross-sectional view showing the main internal configuration of the nozzle head portion of the present invention.
4 is a cross-sectional view showing another embodiment of the nozzle head portion of the present invention.
5 is a cross-sectional view showing another embodiment of the nozzle head portion of the present invention.
6 is a perspective view showing the mixing plate of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

FIG. 1 is a perspective view showing the overall structure of a three-dimensional printer according to the present invention, FIG. 2 is a partial perspective view of a head portion of a three-dimensional printer according to the present invention, Fig. 4 is a cross-sectional view showing another embodiment of the nozzle head portion of the present invention, Fig. 5 is a cross-sectional view showing another embodiment of the nozzle head portion of the present invention, and Fig. 6 is a perspective view showing the mixing plate of the present invention .

Referring to FIG. 1, the three-dimensional printer of the present invention has a case 100. The case 100 has a hollow shape so that a receiving space D is formed therein. A bottom plate 110 is formed on the bottom surface of the accommodation space D. The bottom plate 110 is formed in a plate shape having a predetermined thickness, and a printing object printed on a top surface of the bottom plate 110 through a nozzle head 200 described later can be manufactured and mounted

Referring to FIGS. 1 and 2, a nozzle head 200 is provided inside the case 100. The nozzle head 200 may be supplied with a filament S for producing and molding a printing object. At this time, the filament S can be supplied from the upper side of the nozzle head 200. The filament (S) is made of thermoplastic synthetic resin, and may be typically PLA, PVC, ABS, PPS resin, or the like. (Synthetic resin) other than the synthetic resins listed above.

In general, the filament S is supplied to the nozzle head 200 in a solid state. At this time, the nozzle head 200 receives power and heats the filament S by heating. Accordingly, the molten filament S is discharged to the outside of the nozzle head 200 in a liquid state to form a printing object.

Referring to FIG. 1, the case 100 is provided with a head moving means 300 for moving the nozzle head 200 when the nozzle head 200 forms a printing object. The head moving unit 300 includes a first driving unit 310 for moving the nozzle head 200 in the vertical direction and a second driving unit 320 for moving the nozzle head 200 in the forward and backward direction, And a third driving part 330 connected to the second driving part 320 to move the nozzle head 200 in the left and right direction.

First, the first driving unit 310 is constructed as a first moving plate 311 which is erected in the vertical direction and formed with threads and screws on the outer circumferential surface thereof and a first moving plate 312 which moves in the vertical direction along the first moving rod 311 .

The second driving unit 320 includes a second moving bar 321 connected to the first moving plate 312 and extending in the forward and backward directions and a second moving block 322 moving in the forward and backward directions along the second moving bar 321 And may be formed symmetrically on both sides of the first driving unit 310. [

The third driving part 330 is connected to the second moving block 322 at one side and the other side to move along the third moving rod 331 and the third moving rod 331 moving integrally with the second moving block 322 The third moving block 331 and the third moving block 332 in which the nozzle head 200 is fixed to one side.

Therefore, since the nozzle head 200 can freely move up and down, left and right, and back and forth directions, the printing object can be output in a three-dimensional shape, that is, three-dimensionally.

Referring to FIG. 1, a filament supply part 400 is formed on one side of the case 100. The filament supply part 400 is formed for the purpose of feeding the filament S to the nozzle head 200. That is, the filament S is wound on a cylindrical winding roller provided on the lower side of the case 100, and is fed to the nozzle head 200 by the filament feeding part 400 being pulled. At this time, a conveyance pipe 410 having a hollow inside to guide the filament S is formed between the filament supply unit 400 and the nozzle head 200. The filament S can be fed to the nozzle head 200 by being guided by the feed pipe 410 when the filament feeding part 400 pulls the filament S toward the nozzle head 200. [

Referring to FIG. 2, the nozzle head 200 is provided with an ink header 500 in which ink having a color selected by a user is received. The ink header 500 injects ink into the melted filament S heated by the nozzle head 200. After the filaments S and the ink are mixed, the filaments S, which have been changed in color by mixing with the ink, are discharged to the outside of the nozzle head 200. Accordingly, the printing object can be output so as to have the same color as the ink ejected from the ink header 500. [

Referring to FIG. 1, a control unit 600 is installed in the case 100. The control unit 600 controls the filament supply unit 400 and the ink header 500.

3, the control unit 600 controls the rotation speed of the filament supply unit 400 to adjust the supply amount of the filament S supplied to the nozzle head 200 . Therefore, the discharge amount of the filament S discharged from the nozzle head 200 can be controlled, and the thickness of the filament S discharged can be controlled by the user's choice.

In addition, the controller 600 controls the amount of ink ejected from the ink header 500 to explain that the ink header 500 is controlled by the controller 600. [ For example, if the intrinsic hue of the filament S is assumed to be white, the color of the ink may be output so as to have various saturation depending on the amount of ink jetted.

2 and 3, the nozzle head 200 includes a lead-in portion 210, a head body 220, and a discharge portion 230. The inlet 210 is connected to one side of the transfer tube 410 and is formed to guide the filament S into the nozzle head 200. The inlet 210 is preferably located above the nozzle head 200.

The head body 220 is provided with a heating part 221 for heating and melting the filament S supplied from the lead-in part 210. The heating part 221 is controlled by the control part 600 and operates. The head body 200 also includes a mixing chamber 222 in which the filament S heated by the heating portion 221 is melted. The ink injected from the filament S and the ink header 500 is mixed with the mixing chamber 222 while being moved along the mixing chamber 222.

The discharging unit 230 discharges the filament S mixed with the ink to the outside while moving along the mixing chamber 222. In addition, the discharging unit 230 may be manufactured in various sizes according to the size and shape of the printing object, and may be used according to the user's selection.

Referring to FIG. 4, the mixing chamber 222 may be formed to have a slanting gradient inside the head body 220. This is to maximize the moving path of the filament S passing through the mixing chamber 222 so that the ink and the filament S can be mixed well. At this time, the heating unit 221 is moved along the movement path of the mixing chamber 222, As shown in Fig.

Referring to FIG. 4, a mixing protrusion 222-1 protrudes from an inner surface of the mixing chamber 222. The plurality of mixing protrusions 222-1 are spaced apart from each other along the inner wall surface of the mixing chamber 222 at predetermined intervals. When the filament S injected with the ink moves in contact with the plurality of mixing protrusions 222-1, the mixing ratio of the ink and the filament S is increased.

5 and 6, the mixing chamber 222 is provided with a mixing plate 700 having a plurality of mixing holes 710 formed therein. The mixing plates 700 may be formed at a plurality of spaced apart intervals in the mixing chamber 222. That is, as the filaments S pass through the plurality of mixing holes 710, the ink and the filaments S are mixed. As the number of the mixing plates 700 increases, the mixing ratio can be increased.

Referring to FIG. 3, the heating unit 221 includes a first heating unit 221-1 and a second heating unit 221-2. The first heating part 221-1 is provided on the upper side of the head body 220 and is formed for primarily heating when the filament S is drawn into the inlet part 210. [ Thereafter, the filament S flows into the mixing chamber 222 together with ink ejected from the ink header 500. That is, when the ink is injected in a state where the filament S is primarily melted, smooth mixing of the ink and the filament S can be induced.

The second heating portion 221-2 is provided on the lower side of the head body 220 so as to surround the mixing chamber 222. This is formed for the purpose of continuously heating the filament S to prevent the filament S passing through the mixing chamber 222 from hardening.

The three-dimensional printer having various colors according to the present invention has an advantage that an ink header 500 for jetting ink to the nozzle head 200 is provided to output a printing object having various colors.

100: case 110: bottom plate
200: nozzle head 210: inlet
220: head body 221: heating part
221-1: first heating section 221-2: second heating section
222: mixing chamber 222-1: mixing projection
300: head moving means 310: first driving section
320: second driving part 330: third driving part
400: filament supply part 500: ink header
600: control unit 700: mixing plate
D: accommodation space S: filament

Claims (5)

A case including a bottom plate having a receiving space formed therein and seated on a bottom surface of the receiving space;
A nozzle head positioned inside the case and heating and melting the filament fed from one side and discharging the filament to the outside;
A second driving unit connected to the first driving unit to move the nozzle head in the forward and backward directions and a second driving unit connected to the second driving unit to move the nozzle head in the left- A head moving means including a third driving portion;
A filament supply part formed at one side of the case and pulling the filament to the nozzle head;
An ink header which is accommodated in the nozzle head and injects ink contained in the filament so that the melted filament is mixed with ink and is discharged to the nozzle head; And
And a control unit for controlling the supply amount of the filament supplied to the nozzle head to control the discharge amount of the filament discharged from the nozzle head and controlling the amount of ink injected from the ink headers. Three-dimensional printer. The method according to claim 1,
The nozzle head
An inlet through which the filament is drawn;
A head body including a heating part operated by the control part to heat the filament supplied from the inlet part and a mixing chamber in which the filament heated by the heating part and the ink jetted from the ink header are mixed; And
And a discharging portion through which the respective filaments mixed from the mixing chamber are discharged. 3. The method of claim 2,
And a plurality of mixing protrusions are formed on inner surfaces of the mixing chamber so as to protrude from the inner surface of the mixing chamber at predetermined intervals. 3. The method of claim 2,
Wherein the mixing chamber is provided with a mixing plate having a plurality of mixing holes formed therein. 5. The method according to any one of claims 2 to 4,
The heating unit includes a first heating unit disposed on the upper side of the head body adjacent to the inlet unit; And
And a second heating unit formed to surround the mixing chamber.
KR1020140039640A 2014-04-02 2014-04-02 Various colors are implemented three-dimensional printer KR101610897B1 (en)

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Cited By (7)

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CN107283839A (en) * 2017-08-02 2017-10-24 北京卫星制造厂 A kind of 3D printer multi-color printing head and its method
WO2017195947A1 (en) * 2016-05-12 2017-11-16 국민대학교 산학협력단 Three-dimensional printer head for discharging multiple molding melt solutions and three-dimensional printer comprising same
WO2018038326A1 (en) * 2016-08-22 2018-03-01 주식회사 쓰리디코리아 3d printing nozzle having enhanced ability to mix different materials, and 3d printer including same
WO2018160005A1 (en) * 2017-02-28 2018-09-07 주식회사 쓰리딜라이트 Device for aligning z-axis of 3d printer and method for aligning z-axis using same
JP2020529346A (en) * 2017-08-02 2020-10-08 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Method of Producing Tertiary Element Ground by Fused Deposition Modeling (FFF) Process
CN112172130A (en) * 2020-09-30 2021-01-05 武汉岩硕科技有限公司 Multi-nozzle 3D printing system
WO2021100000A1 (en) * 2019-11-19 2021-05-27 Veda Group B.V. 3d printer

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KR101968566B1 (en) * 2017-08-17 2019-04-12 군산대학교산학협력단 3D Printer nozzle
KR20190075210A (en) 2017-12-21 2019-07-01 (주)재파트 Nozzle head for 3D printer with painting function
EP3790727B1 (en) * 2018-05-07 2023-02-01 Signify Holding B.V. Color mixing nozzle
KR102158928B1 (en) 2019-01-11 2020-09-22 창원대학교 산학협력단 Change tool install structure for multi-color 3d printer and multi-color 3d printer comprising the same

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WO2017195947A1 (en) * 2016-05-12 2017-11-16 국민대학교 산학협력단 Three-dimensional printer head for discharging multiple molding melt solutions and three-dimensional printer comprising same
WO2018038326A1 (en) * 2016-08-22 2018-03-01 주식회사 쓰리디코리아 3d printing nozzle having enhanced ability to mix different materials, and 3d printer including same
WO2018160005A1 (en) * 2017-02-28 2018-09-07 주식회사 쓰리딜라이트 Device for aligning z-axis of 3d printer and method for aligning z-axis using same
CN107283839A (en) * 2017-08-02 2017-10-24 北京卫星制造厂 A kind of 3D printer multi-color printing head and its method
JP2020529346A (en) * 2017-08-02 2020-10-08 ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ Method of Producing Tertiary Element Ground by Fused Deposition Modeling (FFF) Process
WO2021100000A1 (en) * 2019-11-19 2021-05-27 Veda Group B.V. 3d printer
CN112172130A (en) * 2020-09-30 2021-01-05 武汉岩硕科技有限公司 Multi-nozzle 3D printing system

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