JPH02108519A - Formation of three-dimensional shape and device therefor - Google Patents
Formation of three-dimensional shape and device thereforInfo
- Publication number
- JPH02108519A JPH02108519A JP63263779A JP26377988A JPH02108519A JP H02108519 A JPH02108519 A JP H02108519A JP 63263779 A JP63263779 A JP 63263779A JP 26377988 A JP26377988 A JP 26377988A JP H02108519 A JPH02108519 A JP H02108519A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- light
- resin liquid
- photosetting
- reflecting
- 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.)
- Granted
Links
- 230000015572 biosynthetic process Effects 0.000 title description 2
- 239000011347 resin Substances 0.000 claims abstract description 97
- 229920005989 resin Polymers 0.000 claims abstract description 97
- 239000007788 liquid Substances 0.000 claims abstract description 93
- 239000000463 material Substances 0.000 claims abstract description 29
- 230000001678 irradiating effect Effects 0.000 claims abstract description 10
- 238000000016 photochemical curing Methods 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 37
- 239000006249 magnetic particle Substances 0.000 claims description 23
- 239000000758 substrate Substances 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 16
- 238000005507 spraying Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 13
- 238000001723 curing Methods 0.000 description 8
- 230000035515 penetration Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
- B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、三次元形状の形成方法および装置に関し、
光の照射によって硬化する光硬化性樹脂を用いて、立体
的な三次元形状を有する物品を成形製造する方法、およ
び、この方法を実施するための装置に関するものである
。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method and apparatus for forming a three-dimensional shape,
The present invention relates to a method of molding and manufacturing an article having a three-dimensional shape using a photocurable resin that is cured by irradiation with light, and an apparatus for carrying out this method.
光硬化性樹脂を用いて三次元形状を形成する方法は、複
雑な三次元形状を、成形型や特別な加工工具等を用いる
ことなく、簡単かつ正確に形成することができる方法と
して、各種の製品モデルや立体模型の製造等に利用する
ことが考えられており、例えば、特開昭６２−３５９６
６号公報、特開昭６１−１１４８１７号公報等に開示さ
れている。The method of forming three-dimensional shapes using photocurable resin is a method that can easily and accurately form complex three-dimensional shapes without using molds or special processing tools. It is considered to be used for manufacturing product models and three-dimensional models.
This method is disclosed in Japanese Patent Application Laid-Open No. 61-114817, etc.
第６図には、従来の一般的な、光硬化性樹脂を用いた三
次元形状の成形方法の一例を示しており、樹脂液槽１に
貯えられた液状の光硬化性樹脂２に対して、液面上方か
ら集光レンズ３０で集光されたレーザービーム等の光ビ
ーム３を照射することによって、光ビーム３の焦点位置
付近の、液面から一定の深さまでの光硬化性樹脂液２を
硬化させ、光ビーム３の照射位置を順次移動させること
によって、所定のパターンを有する光硬化層４０を形成
する。この光硬化層４０の上に新たな光硬化性樹脂液２
を供給し、この光硬化性樹脂液２を再び光ビーム３で所
定のパターン状に硬化させれば、前記光硬化層４０の上
に別のパターンを有する光硬化層４０が形成される。こ
のようにして、複数層の光硬化層４０・・・を順次積み
重ねていけば、所望の三次元形状を有する成形品４が形
成できる。FIG. 6 shows an example of a conventional general method of molding a three-dimensional shape using a photocurable resin, and shows how the liquid photocurable resin 2 stored in the resin liquid tank 1 is By irradiating a light beam 3 such as a laser beam focused by a condensing lens 30 from above the liquid surface, the photocurable resin liquid 2 is heated to a certain depth from the liquid surface near the focal position of the light beam 3. A photocured layer 40 having a predetermined pattern is formed by curing and sequentially moving the irradiation position of the light beam 3. A new photocurable resin liquid 2 is placed on this photocurable layer 40.
is supplied and the photocurable resin liquid 2 is cured again in a predetermined pattern with the light beam 3, thereby forming a photocurable layer 40 having another pattern on the photocurable layer 40. In this way, by sequentially stacking a plurality of photocuring layers 40..., a molded article 4 having a desired three-dimensional shape can be formed.
前記のような、従来の三次元形状の形成方法において、
形成される三次元形状の寸法または形状精度を高めるに
は、積み重ねる光硬化層の形状および厚みを正確に制御
する必要がある。光硬化層の厚みを正確に制御するには
、光硬化性樹脂の液面に照射する光ビームの焦点位置や
光エネルギーの強度によって決定される光ビームの浸透
深さが重要になってくる。In the conventional three-dimensional shape forming method as described above,
In order to improve the size or shape accuracy of the three-dimensional shape formed, it is necessary to accurately control the shape and thickness of the photocured layers to be stacked. In order to accurately control the thickness of the photocurable layer, the penetration depth of the light beam, which is determined by the focal position of the light beam irradiated onto the liquid surface of the photocurable resin and the intensity of the light energy, is important.
ところが、従来の三次元形状の形成方法では、光ビーム
の照射エネルギーのバラツキや、光硬化性樹脂液の液面
高さのバラツキ等によって光ビームの浸透深さが変わる
ので、形成される光硬化層の厚みが変動し、均一な厚み
の光硬、化層が得られず、そのため形成された三次元形
状の寸法精度や外観品質が悪くなるという問題があった
。However, in conventional methods for forming three-dimensional shapes, the penetration depth of the light beam changes due to variations in the irradiation energy of the light beam, variations in the liquid level of the photocurable resin liquid, etc. There was a problem in that the thickness of the layer varied, making it impossible to obtain a photohardening layer with a uniform thickness, and as a result, the dimensional accuracy and appearance quality of the formed three-dimensional shape deteriorated.
そこで、この発明の課題は、均一な厚みを有し、品質の
良好な光硬化層が得られる三次元形状の形成方法および
装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus for forming a three-dimensional shape by which a photocured layer having a uniform thickness and good quality can be obtained.
上記課題を解決する、この発明のうち、請求項１記載の
三次元形状の形成方法は、光硬化性樹脂に光を照射して
光硬化層を形成し、こめ光硬化層を複数層積み重ねて、
所望の三次元形状を形成する方法において、光硬化層の
表面に光反射層を形成するとともに、この光反射層の上
に光硬化性樹脂を供給した後、この光硬化性樹脂に光を
照射することによって、次層の光硬化層を形成するよう
にしている。A method for forming a three-dimensional shape according to claim 1 of the present invention that solves the above problems includes irradiating a photocurable resin with light to form a photocured layer, and then stacking a plurality of photocured layers. ,
In the method of forming a desired three-dimensional shape, a light-reflecting layer is formed on the surface of the photo-curing layer, a photo-curing resin is supplied on the light-reflecting layer, and then the photo-curing resin is irradiated with light. By doing so, the next photocurable layer is formed.
請求項２記載の三次元形状の形成方法は、光反射層が、
光反射材を光硬化層の表面に散布することによって形成
されるようにしている。In the method for forming a three-dimensional shape according to claim 2, the light reflecting layer comprises:
It is formed by scattering a light reflecting material on the surface of the photocuring layer.
請求項３記載の三次元形状の形成方法は、光反射層が、
光反射性磁性粒子に磁界を作用させて、光硬化層の表面
に一様に分布させることによって形成されるようにして
いる。In the method for forming a three-dimensional shape according to claim 3, the light reflecting layer comprises:
A magnetic field is applied to the light-reflecting magnetic particles so that they are uniformly distributed on the surface of the photo-cured layer.
請求項４記載の三次元形状の形成装置は、光硬化性樹脂
液を溜める樹脂液槽と、樹脂液層の液面付近に光ビーム
を照射する光照射機構を備え、樹脂液槽内で光硬化層を
形成して順次積み重ねる三次元形状の形成装置において
、樹脂、液槽で形成された光硬化層の表面に光反射材を
散布する光反射材散布機構を備えているようにしている
。The apparatus for forming a three-dimensional shape according to claim 4 is provided with a resin liquid tank for storing a photocurable resin liquid, and a light irradiation mechanism for irradiating a light beam near the liquid surface of the resin liquid layer. A three-dimensional shape forming apparatus for forming cured layers and stacking them one after another is equipped with a light-reflecting material dispersing mechanism for dispersing a light-reflecting material onto the surface of the photo-cured layer formed in a resin or liquid bath.
請求項５記載の三次元形状の形成装置は、光硬化性樹脂
液を溜める樹脂液槽と、樹脂液層の液面付近に光ビーム
を照射する光照射機構を備え、樹脂液槽内で光硬化層を
形成して順次積み重ねる三次元形状の形成装置において
、光硬化性樹脂液中に分散された光反射性磁性粒子に対
して磁界を作用させる磁場発生機構を備えているように
している。The apparatus for forming a three-dimensional shape according to claim 5 is provided with a resin liquid tank for storing a photocurable resin liquid, and a light irradiation mechanism for irradiating a light beam near the liquid surface of the resin liquid layer. A three-dimensional shape forming apparatus for forming hardened layers and stacking them one after another is equipped with a magnetic field generating mechanism that applies a magnetic field to light-reflecting magnetic particles dispersed in a photocurable resin liquid.
請求項１記載の方法によれば、前段階で硬化された光硬
化層の表面に光反射層を形成し、この光反射層の上で光
硬化性樹脂に光を照射して硬化させるので、照射された
光の一部が光反射層で反射され、この反射された光のエ
ネルギーも光硬化性樹脂の光硬化作用に役立ち、光エネ
ルギーを有効に利用することができて、硬化効率を高め
硬化速度を向上させることができる。また、照射する光
の浸透深さが、硬化させようとする光硬化性樹脂の厚み
よりも深くなっても、光反射層で反射されるので、前段
階で硬化された光硬化層の中まで入ることはな（、目的
とする光硬化性樹脂のみに光硬化作用を与えることがで
きる。According to the method according to claim 1, a light-reflecting layer is formed on the surface of the photo-curing layer that has been cured in the previous step, and the photo-curing resin is cured by irradiating light on the light-reflecting layer. A part of the irradiated light is reflected by the light reflection layer, and the energy of this reflected light also helps the photocuring effect of the photocurable resin, allowing effective use of light energy and increasing curing efficiency. Curing speed can be improved. In addition, even if the penetration depth of the irradiated light is deeper than the thickness of the photocurable resin to be cured, it will be reflected by the light reflective layer, so it will penetrate into the photocurable layer that was cured in the previous step. The photocuring effect can be applied only to the target photocurable resin.
請求項２記載の方法によれば、請求項１記載の方法の実
施に際し、光反射材を光硬化層の表面に散布して光反射
層を形成するので、通常の光硬化性樹脂を用いる三次元
形状の形成方法に、光反射材の散布工程を追加するだけ
で、前記請求項１記載の方法の作用を簡単に果たすこと
ができる。According to the method according to claim 2, when carrying out the method according to claim 1, a light reflecting material is sprayed on the surface of the photocurable layer to form a light reflecting layer, so that a tertiary layer using a normal photocurable resin is not used. The effect of the method according to claim 1 can be easily achieved by simply adding a step of dispersing the light reflecting material to the method of forming the original shape.
請求項３記載の方法は、請求項１記載の方法の実施に際
し、光硬化性樹脂内で光反射性磁性粒子に磁界を作用さ
せことによって、光反射性磁性粒子が磁界の方向にした
がって配向した状態に並んで層状に集まるので、光反射
性磁性粒子を光硬化層の全面に一様な厚みで分布させる
ことができ、光反射層の厚みや反射特性等を均一に形成
することができる。In the method according to claim 3, when carrying out the method according to claim 1, a magnetic field is applied to the light-reflecting magnetic particles within a photocurable resin, so that the light-reflecting magnetic particles are oriented in the direction of the magnetic field. Since the light-reflecting magnetic particles are arranged in a layered manner, the light-reflecting magnetic particles can be distributed over the entire surface of the photocuring layer with a uniform thickness, and the light-reflecting layer can be formed to have a uniform thickness and reflective properties.
請求項４記載の装置は、光反射付散布機構を備えている
ことによって、光硬化層の表面に光反射材を散布するこ
とができ、前記した請求項２記載の方法を良好に実施す
ることができる。The apparatus according to claim 4 is equipped with a scattering mechanism with light reflection, so that the light reflecting material can be sprayed on the surface of the photocured layer, and the method according to claim 2 can be successfully carried out. Can be done.
請求項５記載の装置は、磁場発生機構を備えていること
によって、樹脂液中の光反射性磁性粒子に磁界を作用さ
せ光硬化層の表面に一様に分布させて、均一な光反射層
を形成することができ、前記した請求項３記載の方法を
良好に実施することができる。The apparatus according to claim 5 is provided with a magnetic field generation mechanism, so that a magnetic field is applied to the light-reflecting magnetic particles in the resin liquid and uniformly distributed on the surface of the photo-curing layer, thereby creating a uniform light-reflecting layer. can be formed, and the method according to claim 3 described above can be carried out satisfactorily.
ついで、この発明を、実施例を示す図面を参照しながら
、以下に詳しく説明する。Next, the present invention will be explained in detail below with reference to the drawings showing examples.
第１図は、成形装置の全体構造を示している。FIG. 1 shows the overall structure of the molding device.
樹脂液槽１には液状の光硬化性樹脂２が溜められている
。樹脂液槽１の中には、その上で光硬化層４０を形成す
る成形台５が設けられている。成形台５は昇降アーム５
０に固定され、昇降アーム５０はボールネジ５１等の回
転−直線運動変換機構を介してＺ軸（垂直軸）方向移動
制御装置５３に連結され、このＺ軸方向移動制御装置５
３の作動をコンピュータ６で制御することによって、成
形台５の昇降を自由に制御できるようになっている。ボ
ールネジ５１の一端にはエンコーダ５２が取り付けられ
てあって、ボールネジ５１の回転量すなわち成形台５の
昇降量を検出してコンピュータ６に伝える。A liquid photocurable resin 2 is stored in a resin liquid tank 1. A molding table 5 on which a photocuring layer 40 is formed is provided in the resin liquid tank 1 . The molding table 5 is a lifting arm 5
0, and the lifting arm 50 is connected to a Z-axis (vertical axis) direction movement control device 53 via a rotation-linear motion conversion mechanism such as a ball screw 51, and this Z-axis direction movement control device 5
By controlling the operation of the molding table 3 by the computer 6, the raising and lowering of the molding table 5 can be freely controlled. An encoder 52 is attached to one end of the ball screw 51 to detect the amount of rotation of the ball screw 51, that is, the amount of elevation of the molding table 5, and transmits the detected amount to the computer 6.
樹脂液槽１の上方には、硬化用の光ビーム３を発生する
紫外線レーザー等の発生装置３３、光フィルタ３２、光
ビーム３の方向を転換する反射鏡３１および集光レンズ
３０等からなる光照射機構が設けられており、樹脂液槽
１に収容した光硬化性樹脂ｉｌ＆２の液面付近に焦点を
結ぶように光ビーム３が照射される。これらの基本的な
構造については、光硬化性樹脂を用いる通常の三次元形
状の形成装置と同様である。Above the resin liquid tank 1, there is a light beam consisting of a generator 33 such as an ultraviolet laser that generates a light beam 3 for curing, an optical filter 32, a reflector 31 that changes the direction of the light beam 3, a condenser lens 30, etc. An irradiation mechanism is provided, and a light beam 3 is irradiated so as to be focused near the liquid level of the photocurable resin il&2 contained in the resin liquid tank 1. The basic structure of these devices is the same as that of a normal three-dimensional shape forming device using a photocurable resin.
樹脂液槽１の側方には、光反射材６０の散布機構を備え
ている。光反射付散布機構は、反射材タンク７０とその
下部に設けられた散布ノズル７１がＸＹ駆動装置７２に
支持されている。ＸＹ駆動装置７２は、前記Ｚ方向移動
制御装置５３とともにコンピュータ６で制御され、散布
ノズル７１を樹脂液槽１の側方から、樹脂液槽１の中央
で形成される光硬化層４０の上方位置へと移動させて、
光反射材タンク７０内の光反射材６０を形成された光硬
化層４０の上方に散布できるようになってイル。この光
反射材タンク７０には、光ビーム３に対する光反射性の
高い金属や金属化合物、その他の材料からなる粒状の光
反射材６０が収容されている。A scattering mechanism for a light reflecting material 60 is provided on the side of the resin liquid tank 1. The spraying mechanism with light reflection includes a reflecting material tank 70 and a spraying nozzle 71 provided at the bottom thereof, which are supported by an XY drive device 72. The XY drive device 72 is controlled by the computer 6 together with the Z direction movement control device 53, and moves the spray nozzle 71 from the side of the resin liquid tank 1 to a position above the photocuring layer 40 formed in the center of the resin liquid tank 1. move it to
The light reflecting material 60 in the light reflecting material tank 70 can be sprayed above the formed photocuring layer 40. This light-reflecting material tank 70 accommodates a granular light-reflecting material 60 made of metal, metal compound, or other material that is highly reflective to the light beam 3 .
第２図には、上記のような装置を使用する三次元形状の
形成方法を工程順に示している。FIG. 2 shows a method for forming a three-dimensional shape using the above-mentioned apparatus in the order of steps.
まず、第２図（ａ）に示すように、樹脂液槽ｌに沈めた
成形台５と液面との間に、集光レンズ３０を用いて、液
面付近に焦点を有し、所定の光エネルギーや浸透深さに
設定された硬化用の光ビーム３を照射する。硬化用の光
ビーム３が照射された樹脂液２は硬化して、所定パター
ンの光硬化層４０が形成される。First, as shown in FIG. 2(a), a condenser lens 30 is used between the molding table 5 submerged in the resin liquid tank l and the liquid surface, and the focal point is near the liquid surface. A curing light beam 3 whose light energy and penetration depth are set is irradiated. The resin liquid 2 irradiated with the curing light beam 3 is cured, and a photocured layer 40 having a predetermined pattern is formed.
つぎに、第２図（ｂ）に示すように、光反射材タンク７
０が、樹脂液槽１の側方から中央上方に進出し、形成さ
れた光硬化層４０の表面に散布ノズル７１から光反射材
６０を散布して光反射層６を形成する。光反射材６０は
、光硬化層４０の表面に一様に分布するように、光硬化
層４０の表面に出来るだけ均等に散布するのが好ましい
。Next, as shown in FIG. 2(b), the light reflecting material tank 7
0 advances from the sides of the resin liquid tank 1 to the upper center, and the light reflective material 60 is sprayed from the spray nozzle 71 onto the surface of the formed photocured layer 40 to form the light reflective layer 6. It is preferable that the light reflecting material 60 is spread as evenly as possible on the surface of the photocured layer 40 so that it is uniformly distributed on the surface of the photocured layer 40 .
第２図（Ｃ）に示すように、成形台５を下降させて、形
成された光硬化層４０を樹脂液２内に沈ませ、光硬化層
４０の上に新たな樹脂液２を供給した後、再び光ビーム
３を照射して２Ｎ目の光硬化層４０を形成すれば、先に
形成された光硬化層４０の上に新たな光硬化層４０が積
層される。その後、第２図（ｄｌに示すように、再び光
反射材６０の散布を行う。このような工程を繰り返すこ
とによって、複数層に積層された光硬化層４０が形成さ
れる。As shown in FIG. 2(C), the molding table 5 was lowered to submerge the formed photocured layer 40 into the resin liquid 2, and a new resin liquid 2 was supplied onto the photocured layer 40. After that, if the light beam 3 is irradiated again to form the 2Nth photocured layer 40, a new photocured layer 40 is laminated on the previously formed photocured layer 40. Thereafter, as shown in FIG. 2 (dl), the light reflecting material 60 is again sprayed. By repeating such steps, a plurality of laminated photocuring layers 40 are formed.
第３図は、上記方法における光硬化作用を詳しく示して
おり、光硬化層４０の上の光硬化性樹脂液２に照射され
た光ビーム３は、樹脂液２に浸透しながら、その部分の
樹脂液２を光硬化させる。FIG. 3 shows in detail the photocuring effect in the above method, in which the light beam 3 irradiated onto the photocurable resin liquid 2 on the photocurable layer 40 penetrates into the resin liquid 2 and damages the area. The resin liquid 2 is photocured.
光ビーム３が光硬化層４０の表面の光反射層６に到達す
ると反射されて、再び上方の液面側に戻ることになるの
で、反射された光ビーム３が通過する部分の樹脂液２に
再び光硬化作用を行うことになる。すなわち、光硬化層
４０の上の樹脂液２には、光ビーム３が二重に照射され
て光硬化作用を行うことになり、光ビーム３の光エネル
ギーを無駄なく有効に利用して、樹脂液２の光硬化を能
率良く行うことができ、硬化時間の短縮および形成され
た光硬化層４０の品質を向上させることができる。When the light beam 3 reaches the light reflection layer 6 on the surface of the photocuring layer 40, it is reflected and returns to the upper liquid surface side, so that the part of the resin liquid 2 through which the reflected light beam 3 passes The photocuring action will be performed again. That is, the resin liquid 2 on the photocuring layer 40 is irradiated with the light beam 3 in a double manner to perform a photocuring effect, and the light energy of the light beam 3 is effectively utilized without wasting the resin. The photocuring of the liquid 2 can be carried out efficiently, the curing time can be shortened, and the quality of the formed photocured layer 40 can be improved.
光反射層６より下方の光硬化ｒＨ４０には光ビーム３が
浸透しないので、硬化済みの光硬化層４０に光ビーム３
が浸透して光硬化層４０に悪影響を与える心配がない。Since the light beam 3 does not penetrate into the photocured rH 40 below the light reflection layer 6, the light beam 3 does not penetrate into the photocured rH 40 that has already been cured.
There is no need to worry about penetrating the photocurable layer 40 and adversely affecting the photocurable layer 40.
また、光ビーム３の浸透深さを、光硬化層４０の表面位
置に正確に合わせず、少し深めに設定しておけば、光ビ
ーム３が光反射層６で反射されて樹脂液２に対する光硬
化作用が有効に果たせるので、この方法では、光ビーム
３の浸透深さを正確に設定しておく必要がない。In addition, if the penetration depth of the light beam 3 is set to be a little deeper without accurately matching the surface position of the photocuring layer 40, the light beam 3 will be reflected by the light reflection layer 6, and the light will not be transmitted to the resin liquid 2. Since the hardening effect can be effectively achieved, this method does not require an accurate setting of the penetration depth of the light beam 3.
つぎに、第４図および第５図には別の実施例を示してい
る。この実施例も基本的には前記第１図の実施例と同様
の構成を備えているので、共通する個所には同じ符号を
付けるとともに、重複する説明は省略する。Next, FIGS. 4 and 5 show another embodiment. This embodiment basically has the same structure as the embodiment shown in FIG. 1, so common parts are given the same reference numerals and redundant explanations will be omitted.
この実施例では、予め光硬化性樹脂液２に光反射性磁性
粒子６１を分散しておく。光反射性磁性粒子６１は、前
記実施例で用いた光反射材６０と同様に光反射性を有す
るとともに、磁性を有する金属材料等からなり、磁界の
作用を受けて磁気的に配向するものを用いる。そして、
三次元形状の形成装置としては、前記実施例における光
反射付散布機構の代わりに、磁場発生機構を備えている
磁場発生機構は、樹脂液槽１の上下に対向して配置され
る一対の磁場発生器８０．８１を備え、このうち下方の
磁場発生器８１は固定されているが、上方の磁場発生器
８０は樹脂液槽１の中央と樹脂液１の外との間を移動す
るように設けられている。すなわち、上方の磁場発生器
８０は、樹脂液槽１の側方に回転可能に設けられた回転
駆動装置８２の回転腕８３に支持されており、回転腕８
３の回転に伴って、樹脂液槽１の上方中央から側方へと
移動できるようになっている。これは、光ビーム３を照
射する際に、磁場発生器８０が邪魔にならないように逃
がしておくためである。磁場発生器８０を光ビーム３の
照射光路の外、例えば、図中の反射鏡３１よりも上方に
設置する場合には、光ビーム３の照射の邪魔にならない
ので、磁場発生器８０が固定されたままであっても構わ
ない。磁場発生器８０．８１は磁場制御装置８４に連結
され、磁場発生器８０．８１の間の樹脂液槽１に対して
、下方から上方に向かう磁界、または、逆に上方から下
方に向かう磁界を適当な強度で作用させ得るようになっ
ている。磁場制御装置８４は、前記した成形台５のＺ軸
方向移動制御装置５３とともにコンピュータ６で制御さ
れるようになっている。In this embodiment, light-reflecting magnetic particles 61 are dispersed in the photocurable resin liquid 2 in advance. The light-reflecting magnetic particles 61 have light-reflecting properties like the light-reflecting material 60 used in the above embodiment, and are made of a magnetic metal material or the like, and are magnetically oriented under the action of a magnetic field. use and,
As a three-dimensional shape forming device, the magnetic field generating mechanism is equipped with a magnetic field generating mechanism instead of the scattering mechanism with light reflection in the above embodiment. The lower magnetic field generator 81 is fixed, but the upper magnetic field generator 80 is movable between the center of the resin liquid tank 1 and the outside of the resin liquid 1. It is provided. That is, the upper magnetic field generator 80 is supported by a rotary arm 83 of a rotary drive device 82 rotatably provided on the side of the resin liquid tank 1.
3, the resin liquid tank 1 can be moved from the upper center to the side. This is to keep the magnetic field generator 80 out of the way when irradiating the light beam 3. When the magnetic field generator 80 is installed outside the irradiation optical path of the light beam 3, for example, above the reflecting mirror 31 in the figure, the magnetic field generator 80 is fixed so that it does not interfere with the irradiation of the light beam 3. It doesn't matter if it's just as it is. The magnetic field generators 80.81 are connected to the magnetic field control device 84, and apply a magnetic field from below to the top, or vice versa, to the resin liquid tank 1 between the magnetic field generators 80.81. It is designed so that it can be applied with appropriate strength. The magnetic field control device 84 is controlled by the computer 6 together with the Z-axis direction movement control device 53 of the forming table 5 described above.
第５図は、上記のような装置を使用する三次元形状の形
成方法を示しており、基本的には、前記した第１図の実
施例で説明した方法と同様にして、成形台５の上で順次
、光硬化層４０を形成し積層していく。FIG. 5 shows a method for forming a three-dimensional shape using the above-mentioned apparatus. Basically, the forming table 5 is A photocuring layer 40 is sequentially formed and laminated on top.
まず、第５図（ａｌに示すように、成形台５の上で光ビ
ーム３を照射して光硬化Ｊｉｉ４０を形成する。First, as shown in FIG. 5 (al), a light beam 3 is irradiated on a molding table 5 to form a photocured Jii 40.
この段階では、樹脂液２中の光反射性磁性粒子６１の磁
気的配向はバラバラである。第５図（ｂ）に示すように
、成形台５および光硬化層４を樹脂液２の下方に沈め、
光硬化層４の上に樹脂液２を供給する。ついで、磁場発
生器８０を樹脂液槽ｌの上方に配置させて、樹脂液槽ｌ
に対して、下方から上方に向かう磁界ｍを作用させる。At this stage, the magnetic orientation of the light-reflecting magnetic particles 61 in the resin liquid 2 is varied. As shown in FIG. 5(b), the molding table 5 and the photocuring layer 4 are submerged below the resin liquid 2,
The resin liquid 2 is supplied onto the photocurable layer 4. Next, the magnetic field generator 80 is placed above the resin liquid tank l, and the magnetic field generator 80 is placed above the resin liquid tank l.
A magnetic field m is applied from below to above.
樹脂液２中に分散された光反射性磁性粒子６１は、磁界
の作用で磁界ｍの方向に従って磁気的に配向するととも
に、液面側に移動して液面付近に層状に集まる。The light-reflecting magnetic particles 61 dispersed in the resin liquid 2 are magnetically oriented according to the direction of the magnetic field m by the action of the magnetic field, move toward the liquid surface, and gather in a layer near the liquid surface.
その後、第５図（Ｃ）に示すように、磁場発生器８０に
よる磁界を反転させて、樹脂液槽１の上方から下方に向
かう磁界ｍ′を作用させると、液面付近で磁気的に配向
して層状に集まっていた光反射性磁性粒子６１が、逆方
向に磁気的に配向させられるとともに液面から下方側に
移動させられ、樹脂液１内の光硬化層４０の表面に付着
して光反射層６が形成されることになる。つぎに、磁界
の作用を止めて、樹脂液槽ｌ上方の磁場発生器８０を樹
脂液槽１の側方に退出させた後、第５図（ｄ）に示すよ
うに、光ビーム３を照射すれば、光反射層６の上の光硬
化性樹脂液２が光硬化して、先に硬化された光硬化Ｊｉ
ｉ４０の上に次層の光硬化層４０が形成されて積み重ね
られる。その後、第５図（８１に示すように、再び成形
台５を沈めて、光硬化１’ｉ４０の上に樹脂液２を供給
して、下方から上方に向かう磁界ｍを作用させると、樹
脂液２中に分散された光反射性磁性粒子が再び磁気的に
配向させられて液面に層状に集まる。Thereafter, as shown in FIG. 5(C), when the magnetic field generated by the magnetic field generator 80 is reversed and a magnetic field m' directed downward from the top of the resin liquid tank 1 is applied, the resin is magnetically oriented near the liquid surface. The light-reflecting magnetic particles 61, which had gathered in a layered manner, are magnetically oriented in the opposite direction and moved downward from the liquid surface, and adhere to the surface of the photocuring layer 40 in the resin liquid 1. A light reflecting layer 6 will be formed. Next, after stopping the action of the magnetic field and moving the magnetic field generator 80 above the resin liquid tank 1 to the side of the resin liquid tank 1, the light beam 3 is irradiated as shown in FIG. 5(d). Then, the photocurable resin liquid 2 on the light reflective layer 6 is photocured, and the photocurable resin liquid 2 on the light reflection layer 6 is photocured.
The next layer of photocuring layer 40 is formed and stacked on top of i40. Thereafter, as shown in FIG. 5 (81), the molding table 5 is submerged again, the resin liquid 2 is supplied onto the photo-curing 1'i40, and a magnetic field m directed from below to above is applied. The light-reflecting magnetic particles dispersed in 2 are magnetically oriented again and gather in a layer on the liquid surface.
このような工程を繰り返すことによって、複数層の光硬
化層４０が積み重ねられた三次元形状を有する成形品４
が製造されるのである。この実施例においても、前記実
施例で第３図によって説明したのと同様に、光反射層６
による光ビーム３の反射作用が行われる。By repeating these steps, a molded product 4 having a three-dimensional shape in which multiple photocured layers 40 are stacked is produced.
is manufactured. In this embodiment as well, the light reflecting layer 6
The reflection action of the light beam 3 is carried out by.
この実施例では、光反射層６の材料として光反射性磁性
粒子６１を用い、磁界の作用によって光反射性磁性粒子
６１を−様な厚みの薄い層状に集めて光硬化層４０の表
面に付着させるので、光反射層６の厚みや反射特性が均
一になり、反射された光ビーム３による光硬化性樹脂液
２の光硬化作用も全体にわたって均一になる。したがっ
て、形成された光硬化層４０の品質性能も局部的なバラ
ツキの少ない均一なものとなる。In this embodiment, light-reflecting magnetic particles 61 are used as the material of the light-reflecting layer 6, and by the action of a magnetic field, the light-reflecting magnetic particles 61 are collected into a thin layer with a --like thickness and attached to the surface of the photo-curing layer 40. As a result, the thickness and reflection characteristics of the light reflecting layer 6 become uniform, and the photocuring action of the photocurable resin liquid 2 by the reflected light beam 3 also becomes uniform over the entire surface. Therefore, the quality performance of the formed photocured layer 40 is also uniform with little local variation.
なお、この実施例において、光反射性磁性粒子６１は、
予め樹脂液２に混合攪拌して分散させておくだけでもよ
いが、光硬化層４０の形成段階に合わせて、順次、必要
な量の光反射性磁性粒子６１を樹脂液２に追加供給して
もよい。磁界の作用方向や強さは、使用する光反射性磁
性粒子６１の材質や、形成しようとする光反射層６の厚
み等に応じて適当に調整される。In this example, the light-reflecting magnetic particles 61 are as follows:
Although it is possible to simply mix and stir the particles into the resin liquid 2 and disperse them in advance, the necessary amount of light-reflective magnetic particles 61 may be added to the resin liquid 2 in sequence according to the formation stage of the photocuring layer 40. Good too. The direction and strength of the magnetic field are appropriately adjusted depending on the material of the light-reflecting magnetic particles 61 used, the thickness of the light-reflecting layer 6 to be formed, and the like.
光硬化層４０の表面に光反射層６を形成する方法として
は、上記実施例のほかに、形成された光硬化層４０の表
面にエキシマレーザ−を照射して粗面化させる方法も採
用でき、そのほか、光硬化層４０の表面に、光反射性の
高い膜または薄層を、物理的あるいは化学的手段で形成
する方法が通用できる。As a method for forming the light reflecting layer 6 on the surface of the photo-cured layer 40, in addition to the above embodiments, a method of roughening the surface of the formed photo-cured layer 40 by irradiating the surface with an excimer laser can also be adopted. In addition, a method of forming a highly light-reflective film or thin layer on the surface of the photocurable layer 40 by physical or chemical means can be used.
以上に説明した、この発明のうち、請求項１記載の三次
元形状の形成方法によれば、光硬化層の表面に形成され
た光反射層で、照射された光を反射して上方の光硬化性
樹脂に有効に作用させることができるので、光硬化作用
が効率的に行われ、硬化時間を短縮できるとともに、十
分な光硬化作用が行われた光硬化層は、その品質や性能
が優れたものとなる。また、光反射層よりも下方の光硬
化層には光が浸透しなくなるので、硬化済みの光硬化層
に光が照射されて悪影響を与える心配もない、したがっ
て、照射する光の浸透深さを厳密に設定しなくても、光
反射層から上の光硬化性樹脂のみを確実に光硬化させる
ことができ、光の制御や調整が簡単になる。According to the method for forming a three-dimensional shape according to claim 1 of the present invention described above, the light reflecting layer formed on the surface of the photocuring layer reflects the irradiated light and directs the light upward. Since it can effectively act on the curable resin, the photo-curing effect is carried out efficiently and the curing time can be shortened, and the photo-curing layer with sufficient photo-curing effect has excellent quality and performance. It becomes something. In addition, since light does not penetrate into the photo-cured layer below the light-reflecting layer, there is no need to worry about the light irradiating the cured photo-curing layer and having an adverse effect. Therefore, the penetration depth of the irradiated light can be reduced. Even without strict settings, only the photocurable resin above the light reflection layer can be reliably photocured, making it easy to control and adjust light.
請求項２記載の発明によれば、請求項１記載の発明の上
記効果に加え、光反射材の散布という極めて簡単な手段
で光反射層を形成することができる。According to the invention set forth in claim 2, in addition to the above effects of the invention set forth in claim 1, a light reflecting layer can be formed by an extremely simple means of dispersing a light reflecting material.
請求項３記載の発明によれば、請求項１記載の発明の上
記効果に加え、光反射性磁性粒子に磁界を作用させるだ
けで、光反射性磁性粒子を光硬化層の全面に−様な厚み
で分布させて、光り反射層の厚みや反射特性等を均一に
形成することができる。According to the invention set forth in claim 3, in addition to the above-mentioned effects of the invention set forth in claim 1, by simply applying a magnetic field to the light-reflecting magnetic particles, the light-reflecting magnetic particles can be applied to the entire surface of the photocuring layer in a similar manner. By distributing the thickness, the thickness, reflection characteristics, etc. of the light-reflecting layer can be formed uniformly.
請求項４記載の装置は、光反射材散布機構を備えておく
だけで、前記した請求項２記載の方法を良好に実施する
ことができる。The apparatus according to claim 4 can satisfactorily carry out the method according to claim 2 simply by being provided with a light-reflecting material dispersing mechanism.
請求項５記載の装置は、磁場発生機構を備えておくだけ
で、前記した請求項３記載の方法を良好に実施すること
ができる。The apparatus according to claim 5 can successfully implement the method according to claim 3 simply by being provided with a magnetic field generating mechanism.
第１図はこの発明の実施例を示す三次元形状の形成装置
の全体構造図、第２図は形成方法を工程順に示す説明図
、第３図は光硬化作用を示す説明図、第４図は別の実施
例を示す装置全体の構造図、第５図は形成方法を工程順
に示す説明図、第６図は従来例の概略構成図である。
ｌ・・・樹脂液槽 ２・・・光硬化性樹脂液 ３・・・
光ビーム ４０・・・光硬化層 ５・・・成形台 ６・
・・光反射層 ６０・・・光反射材 ６１・・・光反射
性磁性粒子７０・・・光反射材タンク ７１・・・散布
ノズル ８０８１・・・磁場発生器
代理人 弁理士 松 本 武 彦
第６図Fig. 1 is an overall structural diagram of a three-dimensional shape forming apparatus showing an embodiment of the present invention, Fig. 2 is an explanatory drawing showing the forming method in the order of steps, Fig. 3 is an explanatory drawing showing the photocuring effect, Fig. 4 5 is a structural diagram of the entire device showing another embodiment, FIG. 5 is an explanatory diagram showing the forming method in the order of steps, and FIG. 6 is a schematic structural diagram of a conventional example. l... Resin liquid tank 2... Photocurable resin liquid 3...
Light beam 40... Photo-cured layer 5... Molding table 6.
...Light-reflecting layer 60...Light-reflecting material 61...Light-reflecting magnetic particles 70...Light-reflecting material tank 71...Spraying nozzle 8081...Magnetic field generator agent Patent attorney Takehiko Matsumoto Figure 6
Claims (1)
の光硬化層を複数層積み重ねて、所望の三次元形状を形
成する方法において、光硬化層の表面に光反射層を形成
するとともに、この光反射層の上に光硬化性樹脂を供給
した後、この光硬化性樹脂に光を照射することによって
、次層の光硬化層を形成することを特徴とする三次元形
状の形成方法。 ２ 光反射層が、光反射材を光硬化層の表面に散布する
ことによって形成される請求項１記載の三次元形状の形
成方法。 ３ 光反射層が、光反射性磁性粒子に磁界を作用させて
、光硬化層の表面に一様に分布させることによって形成
される請求項１記載の三次元形状の形成方法。 ４ 光硬化性樹脂液を溜める樹脂液槽と、樹脂液槽の液
面付近に光ビームを照射する光照射機構を備え、樹脂液
槽内で光硬化層を形成して順次積み重ねる三次元形状の
形成装置において、樹脂液槽で形成された光硬化層の表
面に光反射材を散布する光反射材散布機構を備えている
ことを特徴とする三次元形状の形成装置。 ５ 光硬化性樹脂液を溜める樹脂液槽と、樹脂液層の液
面付近に光ビームを照射する光照射機構を備え、樹脂液
槽内で光硬化層を形成して順次積み重ねる三次元形状の
形成装置において、光硬化性樹脂液中に分散された光反
射性磁性粒子に対して磁界を作用させる磁場発生機構を
備えていることを特徴とする三次元形状の形成装置。[Claims] 1. A method in which a photocurable resin is irradiated with light to form a photocured layer, and a plurality of photocured layers are stacked to form a desired three-dimensional shape. It is characterized by forming a light-reflecting layer on the substrate, supplying a photo-curing resin onto the light-reflecting layer, and then irradiating the photo-curing resin with light to form the next photo-curing layer. A method for forming a three-dimensional shape. 2. The method for forming a three-dimensional shape according to claim 1, wherein the light-reflecting layer is formed by scattering a light-reflecting material on the surface of the photocured layer. 3. The method for forming a three-dimensional shape according to claim 1, wherein the light-reflecting layer is formed by applying a magnetic field to the light-reflecting magnetic particles and uniformly distributing them on the surface of the photo-curing layer. 4 A resin liquid tank that stores a photocurable resin liquid and a light irradiation mechanism that irradiates a light beam near the liquid surface of the resin liquid tank, and a three-dimensional shape that forms a photocurable layer in the resin liquid tank and stacks them one after another. A three-dimensional shape forming apparatus characterized in that the forming apparatus is equipped with a light reflecting material dispersing mechanism for dispersing a light reflecting material onto the surface of a photocured layer formed in a resin liquid bath. 5 A resin liquid tank that stores a photocurable resin liquid and a light irradiation mechanism that irradiates a light beam near the liquid surface of the resin liquid layer, and a three-dimensional shape that forms photocurable layers in the resin liquid tank and stacks them one after another. A three-dimensional shape forming apparatus characterized in that the forming apparatus is equipped with a magnetic field generating mechanism that applies a magnetic field to light-reflecting magnetic particles dispersed in a photocurable resin liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63263779A JP2613929B2 (en) | 1988-10-19 | 1988-10-19 | Method and apparatus for forming a three-dimensional shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63263779A JP2613929B2 (en) | 1988-10-19 | 1988-10-19 | Method and apparatus for forming a three-dimensional shape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02108519A true JPH02108519A (en) | 1990-04-20 |
| JP2613929B2 JP2613929B2 (en) | 1997-05-28 |
Family
ID=17394161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63263779A Expired - Lifetime JP2613929B2 (en) | 1988-10-19 | 1988-10-19 | Method and apparatus for forming a three-dimensional shape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2613929B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08127073A (en) * | 1994-10-31 | 1996-05-21 | Mitsubishi Electric Corp | Minute mechanism part and production thereof |
| US20110123728A1 (en) * | 2009-11-25 | 2011-05-26 | Ricoh Company, Ltd. | Thin film manufacturing method and thin film element |
| CN105196537A (en) * | 2015-05-07 | 2015-12-30 | 南京百川行远激光科技有限公司 | Laser linear scanning-type fast formation system for UV-curing three-dimensional printing |
| CN105291430A (en) * | 2014-07-17 | 2016-02-03 | 迪斯尼实业公司 | Three dimensional (3D) printer and filament material providing scanning protection for 3D printed objects |
| CN112166039A (en) * | 2018-04-06 | 2021-01-01 | 聚合-医药有限公司 | Methods and compositions for photopolymerizable additive manufacturing |
| JP2021015866A (en) * | 2019-07-11 | 2021-02-12 | 大同特殊鋼株式会社 | Bond magnet manufacturing device, bond magnet manufacturing method, and bond magnet |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3442620B2 (en) * | 1997-07-25 | 2003-09-02 | 三菱電機株式会社 | Three-dimensional molding apparatus and three-dimensional molding method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63263780A (en) * | 1987-04-22 | 1988-10-31 | Fujikura Ltd | Manufacture of josephson element |
-
1988
- 1988-10-19 JP JP63263779A patent/JP2613929B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63263780A (en) * | 1987-04-22 | 1988-10-31 | Fujikura Ltd | Manufacture of josephson element |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08127073A (en) * | 1994-10-31 | 1996-05-21 | Mitsubishi Electric Corp | Minute mechanism part and production thereof |
| US20110123728A1 (en) * | 2009-11-25 | 2011-05-26 | Ricoh Company, Ltd. | Thin film manufacturing method and thin film element |
| CN105291430A (en) * | 2014-07-17 | 2016-02-03 | 迪斯尼实业公司 | Three dimensional (3D) printer and filament material providing scanning protection for 3D printed objects |
| US9914262B2 (en) | 2014-07-17 | 2018-03-13 | Disney Enterprises, Inc. | Print method using a three dimensional (3D) printer to provide scanning protection for printed 3D objects |
| CN105196537A (en) * | 2015-05-07 | 2015-12-30 | 南京百川行远激光科技有限公司 | Laser linear scanning-type fast formation system for UV-curing three-dimensional printing |
| CN112166039A (en) * | 2018-04-06 | 2021-01-01 | 聚合-医药有限公司 | Methods and compositions for photopolymerizable additive manufacturing |
| CN112166039B (en) * | 2018-04-06 | 2023-09-05 | 聚合-医药有限公司 | Methods and compositions for photopolymerized additive manufacturing |
| JP2021015866A (en) * | 2019-07-11 | 2021-02-12 | 大同特殊鋼株式会社 | Bond magnet manufacturing device, bond magnet manufacturing method, and bond magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2613929B2 (en) | 1997-05-28 |
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