WO2010067445A1 - 三次元インクジェットプリンタ - Google Patents
三次元インクジェットプリンタ Download PDFInfo
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- WO2010067445A1 WO2010067445A1 PCT/JP2008/072551 JP2008072551W WO2010067445A1 WO 2010067445 A1 WO2010067445 A1 WO 2010067445A1 JP 2008072551 W JP2008072551 W JP 2008072551W WO 2010067445 A1 WO2010067445 A1 WO 2010067445A1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J23/00—Power drives for actions or mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
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- 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
Definitions
- the present invention relates to a three-dimensional ink jet printer that prints on a medium surface by ejecting ink from the ink jet head onto the surface of the medium having a three-dimensional shape.
- a general inkjet printer prints on the surface of a medium by ejecting ink from an inkjet head onto a flat medium conveyed on a platen.
- Patent Document 1 a three-dimensional ink jet printer described in Patent Document 1 has been conceived because of a demand for printing on a three-dimensional medium.
- the three-dimensional inkjet printer described in Patent Document 1 moves up and down a media holding unit that holds a three-dimensional shape medium and moves an ink jet while relatively moving the media holding unit and the inkjet head in a three-dimensional space. Ink is ejected from the head to the media surface.
- Patent Document 1 has a problem that the image quality of the printed image cannot be sufficiently improved because the positional relationship between the ink jet head and the medium differs depending on the print position.
- an object of the present invention is to provide a three-dimensional ink jet printer that can make the positional relationship between an ink jet head and a medium uniform and improve the quality of a printed image.
- the ink jet printer prints on the surface of the medium by ejecting ink from the ink jet head onto the surface of the medium while relatively moving the medium holding unit that holds the three-dimensional shape medium and the ink jet head.
- a Y-axis drive unit that moves the inkjet head in a Y-axis direction that is a main scanning direction, and a media holding unit that moves in a Z-axis direction that is a vertical direction perpendicular to the Y-axis direction.
- a Z-axis support unit that is movably supported, an X-axis drive unit that moves the Z-axis support unit in the Y-axis direction and the X-axis direction perpendicular to the Z-axis direction, and the media holding unit that moves in the Z-axis direction
- a Z-axis drive unit, and the media holding unit swings the media in an A-axis direction that is a rotation direction around an axis in the Y-axis direction.
- the drive unit three-dimensional ink jet printer, characterized in that it comprises a B-axis driving unit for rotating the medium is in the B-axis direction in the direction of rotation about an axis perpendicular to the Y-axis direction.
- the Y-axis drive unit moves the inkjet head and the medium relatively in the Y-axis direction
- the Z-axis drive unit moves the inkjet head and the medium to the Z-axis.
- the ink jet head and the medium are relatively moved in the X axis direction by the X-axis drive unit
- the ink jet head and the medium are relatively moved in the A axis direction by the A axis drive unit.
- the inkjet head and the medium can be relatively moved in the B-axis direction by the B-axis drive unit.
- the inkjet head and the medium are relatively moved by the 5-axis control of the Y-axis, the X-axis, the Z-axis, the A-axis, and the B-axis, so that the inkjet head is independent of the printing position of the media. Since the distance between the medium and the medium and the surface direction of the medium with respect to the ink jet head can be made uniform, the quality of the printed image can be improved.
- the media holding part is supported by the Z-axis support part and protrudes in the X-axis direction, and is supported by the tip part of the arm part and swings in the A-axis direction by the A-axis drive part. It is preferable to further include an A-axis rotating portion that is moved, and a media attaching portion that is attached to the A-axis rotating portion and is rotated in the B-axis direction by the B-axis driving portion to hold the media.
- the A-axis rotating portion that swings in the A-axis direction is supported by the arm portion that protrudes in the X-axis direction from the Z-axis supporting portion. Since the media attachment portion rotated in the axial direction is held, the media can move in the three-dimensional space without being interfered by the Z-axis support portion.
- the present invention it is possible to make the positional relationship between the ink jet head and the printing position of the medium uniform, and to improve the quality of the printed image.
- FIG. 2 is a sectional view taken along line II-II in FIG.
- FIG. 2 is a partial perspective view of the three-dimensional inkjet printer shown in FIG. 1.
- SYMBOLS 1 Three-dimensional inkjet printer, 10 ... Base, 11, 12 ... Support leg, 13 ... Operation panel, 14 ... 1st control apparatus, 15 ... Maintenance station, 16 ... 2nd control apparatus, 17 ... Supporting girder, 18a, 18b ... Y-axis guide rail, 19a, 19b ... X-axis guide rail, 20 ... ink jet head, 21 ... head carriage, 22 ... Y-axis drive unit, 23 ... X-axis drive unit, 31 ... X table, 32 ... Z-axis Support part, 33a, 33b ... Side wall part, 34 ... Top plate part, 35 ... Elevating mechanism, 36a, 36b ...
- FIG. 1 is a front view of the three-dimensional ink jet printer according to the present embodiment
- FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1
- FIG. 3 is a diagram of one of the three-dimensional ink jet printers shown in FIG. FIG.
- the left-right direction in FIG. 1 front-rear direction in FIG. 2 is the Y-axis direction
- the front-rear direction in FIG. 1 left-right direction in FIG. 2
- the up-down direction in FIG. (Vertical direction of 2) is defined as the Z-axis direction.
- the three-dimensional inkjet printer 1 relatively moves an inkjet head 20 that ejects ink and a media holding unit 40 that holds a three-dimensional media M.
- an image or the like is printed on the surface of the medium M by ejecting ink from the inkjet head 20.
- the three-dimensional ink jet printer 1 has a pair of left and right support legs 11 and 12 erected on a base 10 serving as a base along the Y-axis direction.
- a first control device 14 equipped with an operation panel 13 for receiving an instruction operation by an operator is fixed to the support leg 11 arranged on the right side in the Y-axis direction, and the support leg arranged on the left side in the Y-axis direction.
- a second control device 16 on which a maintenance station 15 for cleaning the inkjet head 20 is mounted is fixed to the leg 12.
- the first control device 14 and the second control device 16 are control devices that perform relative movement control between a medium holding unit 40 and an inkjet head 20 described later, ink ejection control of the inkjet head 20, and the like.
- the first control device 14 and the second control device 16 are described as separate units, but may be physically and functionally divided into a plurality of units. Also good.
- a support girder 17 extending along the Y-axis direction is stretched.
- a pair of Y-axis guide rails 18 a and 18 b extending in the extending direction of the support beam 17 are arranged on the upper surface of the support beam 17 in parallel in the X-axis direction.
- a head carriage 21 on which the inkjet head 20 is mounted is attached to the pair of Y-axis guide rails 18a and 18b so as to be movable in the Y-axis direction.
- the inkjet head 20 prints a color image on the medium M held by the medium holding unit 40 by discharging ink of a plurality of colors. For this reason, the inkjet head 20 is provided with a plurality of nozzles that eject inks such as yellow, magenta, cyan, and black. The inkjet head 20 is disposed at the lower end of the head carriage 21 so as to face the medium M held by the medium holding unit 40.
- the head carriage 21 is connected to a Y-axis drive unit 22 attached to the support beam 17.
- the Y-axis drive unit 22 includes, for example, a Y-axis drive motor that rotates about an axis in the Y-axis direction, a ball screw connected to the Y-axis drive motor, and a ball bearing that serves as a bearing for the ball screw.
- This is realized by a known mechanism composed of
- the head carriage 21 is rotated by the Y-axis drive table by the drive control of the Y-axis drive unit 22 by the first control device 14 or the second control device 16, and is guided to the pair of Y-axis guide rails 18a and 18b. And move in the Y-axis direction.
- the maintenance station 15 moves up and down to clean the nozzle of the inkjet head 20.
- a pair of X-axis guide rails 19a and 19b extending in the X-axis direction are arranged in parallel in the Y-axis direction between the pair of support legs 11 and 12.
- An X table 31 for mounting the media holding unit 40 is attached to the pair of X axis guide rails 19a and 19b so as to be movable in the X axis direction.
- the X table 31 is a table for moving the media holding unit 40 relative to the inkjet head 20 in the X-axis direction, and is connected to the X-axis drive unit 23 attached to the base 10.
- the X-axis drive unit 23 includes, for example, an X-axis drive motor that rotates around an axis in the X-axis direction, a ball screw connected to the X-axis drive motor, and a ball bearing that serves as a bearing for the ball screw.
- the X table 31 is guided by a pair of X axis guide rails 19a and 19b by the rotation of the X axis drive table by the drive control of the X axis drive unit 23 by the first control device 14 or the second control device 16. And move in the X-axis direction.
- the X table 31 is provided with a Z-axis support portion 32 extending in the Z-axis direction.
- the Z-axis support part 32 is a support member that supports the media holding part 40 so as to be movable up and down in the Z-axis direction. For this reason, a pair of side wall portions 33a and 33b erected in the Z-axis direction and a top plate portion 34 that connects the upper surfaces of the pair of side wall portions 33a and 33b are attached to the Z-axis support portion 32. And between the pair of side wall portions 33a, 33b, an elevating mechanism 35 for lifting the media holding portion 40 in the Z-axis direction is attached along the side wall portions 33a, 33b.
- the elevating mechanism 35 is disposed between the pair of side wall portions 33a and 33b and is fixed to the X table 31, and is connected to the output shaft of the Z axis drive motor 37 so as to extend in the Z axis direction.
- the ball screw 38 is erected, and the ball bearing 39 is a bearing of the ball screw 38 and is connected to the media holding unit 40.
- the ball screw 38 is rotated by the drive control of the Z-axis drive motor 37 by the first control device 14 or the second control device 16, and the ball bearing 39 is moved up and down in the Z-axis direction by the rotation of the ball screw 38.
- the media holding unit 40 moves up and down in the Z-axis direction.
- the media holding unit 40 holds the medium M in a rotatable manner.
- the media holding part 40 includes a Z table 41 attached to the ball bearing 39 of the lifting mechanism 35, a pair of arm parts 42a and 42b protruding from the Z table 41 in the X-axis direction, and a pair of arm parts 42a, An A-axis rotating part 43 that is rotatably attached to 42 b and a chuck 44 that is rotatably attached to the A-axis rotating part 43 and holds the medium M are configured.
- the pair of arm portions 42a and 42b are disposed to face each other in the Y-axis direction, and hold the A-axis rotating portion 43 so as to be swingable. That is, a rotating shaft extending in the Y-axis direction is attached to the tip of a pair of opposed arm portions 42a and 42b, and an A-axis rotating portion 43 is attached to this rotating shaft.
- the output shaft of the A-axis drive motor 45 fixed to one arm portion 42a is connected to the rotating shaft.
- the A-axis drive motor 45 is rotationally driven in the A-axis direction, which is the rotation direction around the rotation axis attached to the pair of arm portions 42a and 42b. For this reason, when the A-axis drive motor 45 is driven to rotate, the A-axis rotating portion 43 can swing in the A-axis direction.
- the A-axis rotating unit 43 holds the chuck 44 rotatably. That is, the A-axis rotating unit 43 is for the B-axis that is driven to rotate in the B-axis direction, which is the rotation direction around the rotation axis, with the axis perpendicular to the rotation axis of the A-axis rotating unit 43 as the rotation axis.
- a drive motor 46 is attached.
- a chuck 44 that holds the medium M is attached to the output shaft of the B-axis drive motor 46. For this reason, when the B-axis drive motor 46 is driven to rotate, the chuck 44 can be rotated in the B-axis direction.
- the rotation of the Z-axis drive motor 37, the A-axis drive motor 45, and the B-axis drive motor 46 causes the media M held by the chuck 44 of the media holding unit 40 to move up and down in the Z-axis direction. At the same time, it rotates in the A-axis direction and the B-axis direction.
- a pair of Z-axis guide rails 36a and 36b erected in the Z-axis direction are arranged in parallel in the Y-axis direction on the Z-axis support portion 32 on the rear side in the X-axis direction.
- a weight 50 having a predetermined weight is attached to the pair of Z-axis guide rails 36a and 36b so as to be movable up and down in the Z-axis direction.
- the weight 50 is formed in a cube and is for balancing the weight with the media holding unit 40.
- a pair of pulleys 51a and 51b are rotatably supported on the upper portion of the Z-axis support portion 32, and a wire 52 is stretched over each pulley 51a and 51b.
- the wire 52 is a metal wire in which one metal wire or a large number of metal wires are knitted, and has high rigidity against a load in the tensile direction.
- the wire 52 is passed through a pair of hooks attached to the weight 50, and both ends thereof are fixed to the Z table 41 of the media holding unit 40 with screws or the like. Therefore, the media holding unit 40 and the weight 50 are suspended from the Z-axis support unit 32 by the wire 52.
- the weight 50 has the same weight as the weight of the media holding unit 40 or the media holding unit 40 in order to balance the weight with the media holding unit 40 via the wire 52 spanned over the pulleys 51a and 51b.
- the weight is set to be the same as the total weight of the medium M held by the medium holding unit 40.
- the weight 50 is a weight obtained by adding a predetermined weight to the weight of the medium holding unit 40.
- the first control device 14 or the second control device 16 includes the X-axis drive unit 23, the Y-axis drive unit 22, the Z-axis drive motor 37, A By driving and controlling the shaft drive motor 45 and the B-axis drive motor 46, the inkjet head 20 and the medium M move relatively in a three-dimensional space.
- the inkjet head 20 moves horizontally in the Y-axis direction with respect to the medium M.
- the medium M moves horizontally in the X-axis direction with respect to the inkjet head 20.
- the Z-axis drive motor 37 By driving and controlling the Z-axis drive motor 37, the medium M moves up and down in the Z-axis direction with respect to the inkjet head 20.
- the A-axis drive motor 45 By controlling the drive of the A-axis drive motor 45, the medium M swings (rotates) in the A-axis direction with respect to the inkjet head 20.
- the B-axis drive motor 46 the medium M rotates in the B-axis direction with respect to the inkjet head 20.
- each axis is driven and controlled so that the separation distance between the inkjet head 20 and the printing position of the medium M matches the surface direction of the printing position of the medium M with respect to the inkjet head 20. Meanwhile, ink ejection control of the inkjet head 20 is performed. Thereby, a high-quality image can be printed on the surface of the three-dimensional media M.
- the Y-axis drive unit 22 moves the inkjet head 20 in the Y-axis direction with respect to the medium M
- the X-axis drive unit 23 performs inkjet.
- the medium M is moved in the X-axis direction with respect to the head 20
- the medium M is moved in the Z-axis direction with respect to the inkjet head 20 by the Z-axis drive motor 37
- the inkjet head 20 is moved by the A-axis drive motor 45.
- the medium M can be swung in the A-axis direction, and the medium M can be rotated in the B-axis direction with respect to the inkjet head 20 by the B-axis drive motor 46.
- the ink-jet head 20 and the medium M are relatively moved by the 5-axis control of the Y-axis, the X-axis, the Z-axis, the A-axis, and the B-axis, so that the print position of the medium M is not affected. Since the distance between the inkjet head 20 and the medium M and the surface direction of the medium M with respect to the inkjet head 20 can be made uniform, the quality of the printed image can be improved.
- the A-axis rotating portion 43 swinging in the A-axis direction is supported by the arm portion 42 protruding in the X-axis direction from the Z-axis support portion 32. Since the chuck 44 rotated in the B-axis direction is held by the shaft rotating portion 43, the medium M can move in the three-dimensional space without being interfered by the Z-axis support portion 32.
- each axis is described as being moved using a ball screw mechanism.
- the inkjet head 20 and the medium M can be moved by any means as long as the inkjet head 20 and the medium M can move relative to each axis. May be.
- the present invention can be used as a three-dimensional ink jet printer that discharges ink from an ink jet head onto a three-dimensional media surface and prints on the medium surface.
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Abstract
Description
Claims (2)
- 三次元形状のメディアを保持するメディア保持部とインクジェットヘッドとを相対的に移動させながら前記メディアの表面に前記インクジェットヘッドからインクを吐出して前記メディア表面に印刷を行う三次元インクジェットプリンタであって、
前記インクジェットヘッドを主走査方向であるY軸方向に移動させるY軸用駆動部と、
前記メディア保持部をY軸方向に垂直な昇降方向であるZ軸方向に移動可能に支持するZ軸支持部と、
前記Z軸支持部をY軸方向及びZ軸方向に垂直なX軸方向に移動させるX軸用駆動部と、
前記メディア保持部をZ軸方向に移動させるZ軸用駆動部と、
を有し、
前記メディア保持部は、
Y軸方向の軸周りの回転方向であるA軸方向に前記メディアを揺動させるA軸用駆動部と、
Y軸方向に垂直な軸周りの回転方向であるB軸方向に前記メディアを回転させるB軸用駆動部と、
を備えることを特徴とする三次元インクジェットプリンタ。 - 前記メディア保持部は、
前記Z軸支持部に支持されてX軸方向に突出するアーム部と、
前記アーム部の先端部に支持されて前記A軸用駆動部によりA軸方向に揺動されるA軸回転部と、
前記A軸回転部に取り付けられて前記B軸用駆動部によりB軸方向に回転され、前記メディアを保持するメディア取付部と、
を更に備えることを特徴とする請求項1に記載の三次元インクジェットプリンタ。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020107027483A KR101256978B1 (ko) | 2008-12-11 | 2008-12-11 | 3차원 잉크젯 프린터 |
EP08878744.5A EP2283932B1 (en) | 2008-12-11 | 2008-12-11 | Three-dimensional inkjet printer |
JP2010541936A JP5407092B2 (ja) | 2008-12-11 | 2008-12-11 | 三次元インクジェットプリンタ |
CN200880129858.0A CN102066007B (zh) | 2008-12-11 | 2008-12-11 | 三维喷墨打印机 |
PCT/JP2008/072551 WO2010067445A1 (ja) | 2008-12-11 | 2008-12-11 | 三次元インクジェットプリンタ |
US12/948,787 US8308271B2 (en) | 2008-12-11 | 2010-11-18 | 3D inkjet printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2008/072551 WO2010067445A1 (ja) | 2008-12-11 | 2008-12-11 | 三次元インクジェットプリンタ |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/948,787 Continuation US8308271B2 (en) | 2008-12-11 | 2010-11-18 | 3D inkjet printer |
Publications (1)
Publication Number | Publication Date |
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WO2010067445A1 true WO2010067445A1 (ja) | 2010-06-17 |
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ID=42242456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2008/072551 WO2010067445A1 (ja) | 2008-12-11 | 2008-12-11 | 三次元インクジェットプリンタ |
Country Status (6)
Country | Link |
---|---|
US (1) | US8308271B2 (ja) |
EP (1) | EP2283932B1 (ja) |
JP (1) | JP5407092B2 (ja) |
KR (1) | KR101256978B1 (ja) |
CN (1) | CN102066007B (ja) |
WO (1) | WO2010067445A1 (ja) |
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KR102221292B1 (ko) | 2019-02-21 | 2021-02-26 | 순천향대학교 산학협력단 | 3차원 표면 프린팅 방법 |
CN109761608A (zh) * | 2019-03-07 | 2019-05-17 | 江苏师范大学 | 一种基于直写成型3d打印技术制备棒状复合透明陶瓷的方法 |
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Also Published As
Publication number | Publication date |
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US8308271B2 (en) | 2012-11-13 |
JP5407092B2 (ja) | 2014-02-05 |
EP2283932B1 (en) | 2015-02-11 |
KR101256978B1 (ko) | 2013-04-19 |
CN102066007B (zh) | 2014-01-15 |
US20110115849A1 (en) | 2011-05-19 |
EP2283932A4 (en) | 2014-02-12 |
CN102066007A (zh) | 2011-05-18 |
KR20110008317A (ko) | 2011-01-26 |
JPWO2010067445A1 (ja) | 2012-05-17 |
EP2283932A1 (en) | 2011-02-16 |
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