JP2738019B2 - 3D molding equipment - Google Patents
3D molding equipmentInfo
- Publication number
- JP2738019B2 JP2738019B2 JP1130080A JP13008089A JP2738019B2 JP 2738019 B2 JP2738019 B2 JP 2738019B2 JP 1130080 A JP1130080 A JP 1130080A JP 13008089 A JP13008089 A JP 13008089A JP 2738019 B2 JP2738019 B2 JP 2738019B2
- Authority
- JP
- Japan
- Prior art keywords
- molding
- thixotropic
- molding material
- stage
- jet head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、成形用ステージと、熱照射或いは光照射に
よって硬化するチキソトロピー性成形材料を前記成形用
ステージ面に向けて吐出するインクジェットヘッドと、
当該ヘッドよりステージ面に向けて吐出積層されるチキ
ソトロピー性成形材料を熱照射或いは光照射によって硬
化させる手段と、外部入力された成形物の断面スライス
の情報に応じて当該材料の吐出位置や方向を相対的に変
化させる駆動手段と、更に前記インクジェットヘッドへ
前記チキソトロピー性成形材料を供給する手段とを備え
ている、成型品を成形するための三次元成形装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a molding stage, and an inkjet head that discharges a thixotropy molding material that is cured by heat irradiation or light irradiation toward the molding stage surface.
A means for curing the thixotropic molding material discharged and laminated from the head toward the stage surface by heat irradiation or light irradiation, and the discharge position and direction of the material according to the information of the cross-sectional slice of the molded product input externally. The present invention relates to a three-dimensional molding apparatus for molding a molded article, comprising: a driving means for relatively changing the composition; and a means for supplying the thixotropic molding material to the ink jet head.
〔従来の技術〕 既に、インクジェット方式で三次元成形を行う装置が
本出願人により提案されている（第２図）。この様式の
装置は、光硬化性の樹脂を小滴として吐出する複数のイ
ンクジェットヘッドと、当該インクジェットヘッドから
吐出された樹脂が積層するステージと、積層した樹脂を
硬化する手段としての光源と、樹脂の吐出途中に当該樹
脂の吐出位置や方向を相対的に変化させる制御手段とを
備え、前記インクジェットヘッドを用いて、外部入力さ
れた成形物断面スライスの情報に応じて、樹脂を積層さ
せて立体成形を行うようになっている。[Prior Art] An apparatus for performing three-dimensional molding by an ink jet method has already been proposed by the present applicant (FIG. 2). This type of apparatus includes a plurality of inkjet heads that eject photocurable resin as small droplets, a stage on which the resin ejected from the inkjet head is stacked, a light source as a means for curing the stacked resin, and a resin. Control means for relatively changing the discharge position and direction of the resin during the discharge of the resin, and using the ink-jet head, the resin is laminated according to the information of the externally input cross-sectional slice of the molded product to form a three-dimensional structure. Molding is performed.
しかしながら、このような装置では、インクジェット
ヘッドの目詰まりを防止するために粘度の低い樹脂を成
形材料として使用する傾向がある。そのために積層時に
たれや広がりが生じやすく、成形精度が低下するという
問題があった。However, such an apparatus tends to use a resin having a low viscosity as a molding material in order to prevent clogging of the inkjet head. For this reason, there is a problem that sagging and spreading easily occur during lamination, and the molding accuracy is reduced.
本発明の課題は、積層時のたれや広がりを防止して成
形精度を向上させるべく、チキソトロピー性を有する成
形材料を使用できることが可能である三次元成形装置を
提供することにある。An object of the present invention is to provide a three-dimensional molding apparatus capable of using a molding material having thixotropy to prevent sagging and spreading during lamination and improve molding accuracy.
上記の目的を達成するために本発明の三次元成形装置
は、成形用ステージと、熱照射或いは光照射によって硬
化するチキソトロピー性成形材料を前記成形用ステージ
面に向けて吐出するインクジェットヘッドと、当該ヘッ
ドよりステージ面に向けて吐出積層されるチキソトロピ
ー性成形材料を熱照射或いは光照射によって硬化させる
手段と、外部入力された成形物の断面スライスの情報に
応じて当該材料の吐出方向を相対的に変化させる駆動手
段とを備え、更に前記インクジェットヘッドへ前記チキ
ソトロピー性成形材料を供給する手段と、上記インクジ
ェットヘッドから吐出される前の当該流動性成形材料に
振動を付与するオシレーション手段を備えている。ここ
で、チキソトロピー性を有する物質は、静置すると分子
間力、水素結合等により弱い結合を形成し、見掛けの粘
度が著しく大きく、ゲルの態様を呈し、振動を与えると
弱い結合が切られて流動性のゾルに変わるものである。
チキソトロピー性を有する成形材料の流動性を増加する
ためには、当該材料をふりまぜたり、かきまぜたりする
のが適当であり、そのための手段としては、成形材料に
振動を与える装置や、当該材料を撹拌する装置が適す
る。すなわち、前記成形材料は、インクジェットヘッド
から吐出される時にはオシレーション手段により流動性
のゾルになり、ステージに付着すればゲルになるので、
従来の積層時のたれや広がりが防止される。In order to achieve the above object, the three-dimensional molding apparatus of the present invention is a molding stage, an inkjet head that discharges a thixotropic molding material that is cured by heat irradiation or light irradiation toward the molding stage surface, Means for curing the thixotropic molding material discharged and laminated from the head toward the stage surface by heat irradiation or light irradiation, and relatively changing the discharge direction of the material in accordance with the information on the cross-sectional slice of the molded product input externally A drive unit for changing the thixotropic molding material to the inkjet head; and an oscillation unit for applying vibration to the fluid molding material before being discharged from the inkjet head. . Here, a substance having thixotropic properties forms a weak bond due to intermolecular force, hydrogen bond, etc. when left to stand, an apparent viscosity is remarkably large, a gel state is exhibited, and when a vibration is given, the weak bond is cut. Instead of a fluid sol.
In order to increase the fluidity of the thixotropic molding material, it is appropriate to shake or stir the material, and as a means for this, a device for applying vibration to the molding material, A stirring device is suitable. That is, the molding material becomes a fluid sol by the oscillation means when ejected from the inkjet head, and becomes a gel when attached to the stage,
Sagging and spreading during conventional lamination are prevented.
〔実施例〕 以下に、本発明を具体化した一実施例を図面に基づい
て説明する。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
成形材料用タンク11に収容された成形材料は、公知の
光硬化性物質（例えば、ポリエステル、ウレタン、エポ
キシ、ポリエーテル、アクリル等のUV硬化性樹脂。光重
合開始剤や増感剤等を加えてもよい）を主成分としてお
り、チキソトロピー性を高くするために、水或いは有機
溶剤中へ微粒状で光硬化性物質を分散したり、極性の大
きな種々の添加物（例えば、金属石けんやアルキド樹脂
等のゲル化剤、微粉末シリカ、炭酸カルシウムベントナ
イト、有機ベントナイト等のコロイド粒子、ポリアミド
樹脂等）を加えたりして使用される。材料の流動性を増
加するために、オシレーション手段としての撹拌装置12
で撹拌するか又は／及び同じくオシレーション手段とし
ての圧電素子等の振動子13により振動を与えることによ
って、材料の分子間の弱い結合を切断し、当該材料をイ
ンクジェットヘッド14から吐出するまでゾル状の吐出容
易な液体とする。成形ステージ15に吐出積層後は、当該
材料がゲル状となって、たれや広がりが生じにくくな
り、これを光照射することによって精度の高い成形を実
現する。The molding material accommodated in the molding material tank 11 is made of a known photocurable substance (for example, a UV curable resin such as polyester, urethane, epoxy, polyether, acrylic, etc .; a photopolymerization initiator, a sensitizer, etc. May be used as a main component. In order to enhance the thixotropic property, a photocurable substance is dispersed in fine particles in water or an organic solvent, or various polar additives (for example, metal soap or alkyd) are used. A gelling agent such as a resin, colloidal particles such as fine powdered silica, calcium carbonate bentonite and organic bentonite, and a polyamide resin are used. Stirrer 12 as an oscillating means to increase the fluidity of the material
Or by vibrating with a vibrator 13 such as a piezoelectric element, also as an oscillation means, to break weak bonds between molecules of the material, and to discharge the material from the inkjet head 14 in a sol-like state. Liquid easy to discharge. After the ejection and lamination on the molding stage 15, the material becomes gel-like, and sagging and spreading hardly occur. By irradiating the material with light, highly accurate molding is realized.
本発明は以上に詳述した実施例に限定されるものでは
なく、その趣旨を逸脱しない範囲において種々の変更を
加えることができることはもちろんである。例えば、上
記実施例では、光硬化性樹脂を示したが、熱硬化性樹脂
を用いても同様の効果が得られる。The present invention is not limited to the embodiments described in detail above, and it is needless to say that various changes can be made without departing from the gist of the present invention. For example, in the above embodiment, a photocurable resin is shown, but the same effect can be obtained by using a thermosetting resin.
上記の構成を有する本発明の三次元成形装置において
は、チキソトロピー性成形材料を、オシレーション手段
によりゾル状にしてインクジェットヘッドにより吐出
し、積層硬化させているため、積層後に成形材料はすば
やくゲル状を回復するので、たれや広がりのない精度の
高い成形が可能となる。また、吐出の際にはゾル状であ
って容易に吐出可能であるのでジェットヘッドの目詰ま
りが生じない。In the three-dimensional molding apparatus of the present invention having the above configuration, the thixotropic molding material is discharged in a sol form by the oscillation means by the ink jet head and laminated and cured. Therefore, high-precision molding without sagging or spreading can be achieved. Further, at the time of ejection, the jet head is in a sol state and can be easily ejected, so that clogging of the jet head does not occur.
第１図は、本発明を具体化した一実施例の三次元成形装
置の全体の概略図である。 第２図は、従来のインクジェット式三次元成形装置の概
略図である。 〔符号の説明〕 11……タンク 12……撹拌装置 13……振動子 14……ジェットヘッド 15……成形ステージFIG. 1 is an overall schematic view of a three-dimensional forming apparatus according to one embodiment of the present invention. FIG. 2 is a schematic diagram of a conventional ink jet type three-dimensional molding apparatus. [Explanation of Signs] 11 Tank 12 Stirrer 13 Vibrator 14 Jet head 15 Forming stage
Claims (1)
照射によって硬化するチキソトロピー性成形材料を前記
成形用ステージ（15）面に向けて吐出するインクジェッ
トヘッド（14）と、当該ヘッド（14）よりステージ（1
5）面に向けて吐出積層されるチキソトロピー性成形材
料を熱照射或いは光照射によって硬化させる手段と、外
部入力された成形物の断面スライスの情報に応じて当該
材料の吐出位置や方向を相対的に変化させる駆動手段
と、更に前記インクジェットヘッド（14）へ前記チキソ
トロピー性成形材料を供給する手段とを備えている、成
型品を成形するための三次元成形装置にあって、 上記インクジェットヘッド（14）から吐出される前の当
該チキソトロピー性成形材料に振動を付与するオシレー
ション手段（12,13）を備えていることを特徴とする三
次元成形装置。1. A molding stage (15), an inkjet head (14) for discharging a thixotropic molding material which is cured by heat irradiation or light irradiation toward the molding stage (15) surface, and an ink jet head (14). ) Than stage (1
5) Means for curing the thixotropic molding material discharged and laminated toward the surface by heat irradiation or light irradiation, and the position and direction of discharge of the material relative to the cross-sectional slice information of the molded product input externally. A three-dimensional molding apparatus for molding a molded article, comprising: a driving means for changing the temperature of the ink-jet head (14); and a means for supplying the thixotropic molding material to the ink-jet head (14). 3.) A three-dimensional molding apparatus comprising: oscillation means (12, 13) for imparting vibration to the thixotropic molding material before being discharged from the thixotropic molding material.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1130080A JP2738019B2 (en) | 1989-05-25 | 1989-05-25 | 3D molding equipment |
| GB9011461A GB2233928B (en) | 1989-05-23 | 1990-05-22 | Apparatus and method for forming three-dimensional article |
| US07/527,286 US5059266A (en) | 1989-05-23 | 1990-05-23 | Apparatus and method for forming three-dimensional article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1130080A JP2738019B2 (en) | 1989-05-25 | 1989-05-25 | 3D molding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0315519A JPH0315519A (en) | 1991-01-23 |
| JP2738019B2 true JP2738019B2 (en) | 1998-04-08 |
Family
ID=15025510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1130080A Expired - Lifetime JP2738019B2 (en) | 1989-05-23 | 1989-05-25 | 3D molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2738019B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006130864A (en) * | 2004-11-09 | 2006-05-25 | Seiko Epson Corp | The molding method of solid molded object by liquid discharge method |
| JP2008279418A (en) * | 2007-05-14 | 2008-11-20 | National Institute Of Advanced Industrial & Technology | Method for producing three-dimensional structure body by free molding technique for three-dimensional shape |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5121329A (en) * | 1989-10-30 | 1992-06-09 | Stratasys, Inc. | Apparatus and method for creating three-dimensional objects |
| EP1424354B1 (en) * | 2002-11-28 | 2006-03-15 | Degussa AG | Laser-sinterable powder with metallic soaps, methods for preparing the same and moulded products thereof |
| ES2535842T3 (en) | 2004-02-24 | 2015-05-18 | Sumitomo Chemical Company, Limited | Insecticidal composition |
| JP5076067B2 (en) * | 2006-02-06 | 2012-11-21 | 株式会社Ｍｏ２コーポレーション | High pressure oxygen capsule and seal structure for high pressure oxygen capsule |
| JP4800074B2 (en) * | 2006-03-10 | 2011-10-26 | 国立大学法人大阪大学 | Manufacturing method of stereolithography |
| JP2007307071A (en) * | 2006-05-17 | 2007-11-29 | Sysys Co Ltd | Apparatus for treating lifestyle-related disease |
| US10406726B2 (en) * | 2014-11-27 | 2019-09-10 | Georgia-Pacific Chemicals Llc | Thixotropic, thermosetting resins for use in a material extrusion process in additive manufacturing |
| JP7437893B2 (en) * | 2019-07-26 | 2024-02-26 | 株式会社ミマキエンジニアリング | Photocurable 3D dispenser ink and method for producing three-dimensional objects |
| JP2021021008A (en) * | 2019-07-26 | 2021-02-18 | 株式会社ミマキエンジニアリング | Photohardenable ink for discharging |
| CN114207057B (en) * | 2019-07-26 | 2023-06-30 | 株式会社御牧工程 | Photocurable discharge ink and method for producing three-dimensional molded article |
-
1989
- 1989-05-25 JP JP1130080A patent/JP2738019B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006130864A (en) * | 2004-11-09 | 2006-05-25 | Seiko Epson Corp | The molding method of solid molded object by liquid discharge method |
| JP4639758B2 (en) * | 2004-11-09 | 2011-02-23 | セイコーエプソン株式会社 | 3D modeling method by liquid ejection method |
| JP2008279418A (en) * | 2007-05-14 | 2008-11-20 | National Institute Of Advanced Industrial & Technology | Method for producing three-dimensional structure body by free molding technique for three-dimensional shape |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0315519A (en) | 1991-01-23 |
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