WO2019131326A1 - Three-dimensional formed object and method for manufacturing same - Google Patents

Three-dimensional formed object and method for manufacturing same Download PDF

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Publication number
WO2019131326A1
WO2019131326A1 PCT/JP2018/046558 JP2018046558W WO2019131326A1 WO 2019131326 A1 WO2019131326 A1 WO 2019131326A1 JP 2018046558 W JP2018046558 W JP 2018046558W WO 2019131326 A1 WO2019131326 A1 WO 2019131326A1
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Prior art keywords
outer shell
shell
dimensional structure
filling
thickness
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PCT/JP2018/046558
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French (fr)
Japanese (ja)
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前田　直人
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株式会社びーふる
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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
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • 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
    • B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
    • 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
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/379—Handling of additively manufactured objects, e.g. using robots
    • 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
    • B33Y80/00—Products made by additive manufacturing

Definitions

  • the present invention relates to a three-dimensional structure and a method of manufacturing the same.
  • Patent Document 1 discloses a method of manufacturing a model of a target based on three-dimensional data of a target obtained by imaging using a three-dimensional measuring device, and the first part and the second part of the model Are prepared from materials different from each other, three-dimensional data of a part of the object is obtained by photographing with a three-dimensional measuring device, and processing is performed on the material of the first part based on the obtained three-dimensional data; A manufacturing method is described in which the machined first and second parts are integrated by joining them together. By doing this, it is possible to reduce the time required for imaging and processing of materials for obtaining three-dimensional data in forming a three-dimensional model of the target person.
  • Patent Document 1 when a plurality of parts are divided and shaped to have a weight that can be manufactured by a 3D printer, in addition to requiring labor for connecting the parts, the strength of the joint is There is a problem that it may become insufficient.
  • This invention is made in view of such a subject, and makes it a main purpose to provide the model which has the outstanding texture and sufficient intensity
  • strength. Another object is to provide a method of manufacturing this model.
  • the present invention adopts the following means in order to achieve the above-mentioned main objects.
  • the three-dimensional structure of the present invention is A light transmitting outer shell having a hollow space portion and shaped into a contour of a predetermined shape; A filling portion made of an opaque filler filled in the hollow space portion; Characterized by It is a thing.
  • the outer shell is shaped into a light-transmissive outline having a predetermined shape, and has a hollow space portion, and the hollow space portion is filled with a filler to form a filling portion.
  • the hollow space portion is filled with a filler to form a filling portion.
  • the filler may be made of a material that is stronger than the material of which the outer shell is made.
  • the hollow space portion is filled with the filler made of the material having high strength, and therefore the strength can be enhanced.
  • the thickness of the outer shell may be 0.4 mm or more and 1.2 mm or less.
  • the thickness of the outer shell may be characterized by being a non-uniform thickness.
  • the color of the filling portion seen through the outer shell changes between the thick portion and the thin portion, so that the change in the visible color can be expressed without changing the color of the filling portion. it can.
  • the present invention when the present invention is applied to a person or humanoid character, the color of the skin of the person or humanoid character changes, so that the real human-like texture, in addition, it is not a toy Can express such a sense of luxury.
  • the outer shell has a white or milky white light transmitting property
  • the filling portion has a color selected from the group consisting of skin color, white, orange, brown and black. It may be a feature.
  • the filling portion is visually recognized, it is visually recognized through the white or milky-white shell, so that it is possible to give a texture similar to the skin of an organism.
  • the thickness of the shell is uneven, the thick part has a strong white or milky effect and the thin part has a small white or milky effect. For this reason, when the present invention is applied to the skin of a humanoid model, reality can be produced on the texture of the skin of a three-dimensional object.
  • the outer shell may be a UV curable resin containing a pigment. Even when a pigment is contained in the outer shell by using an ultraviolet curing resin for the outer shell, the resin containing the pigment can be processed at high speed even if a 3D printer is used to form the resin by a method of curing the resin by ultraviolet irradiation. And, it can be cured uniformly. For this reason, since resin which contains a pigment in an outer shell can be used, the choice of resin which can be modeled can be increased.
  • the method for producing a three-dimensional structure of the present invention is A method for producing a three-dimensional structure having a predetermined structure, comprising: a light transmitting outer shell located on an outer surface position of a predetermined structure; and an opaque filler filled inside the outer shell. There, Forming the outer shell by laminating translucent powders; Filling the filling material inside the shell formed in the forming step; Characterized in that, It is a thing.
  • the weight of the outer shell is reduced by filling the inside of the outer shell with an opaque filler. Therefore, when forming an outer shell using a 3D printer, it is possible to reduce the possibility of forming defects due to weight.
  • the inner side with the filler it is possible to produce a three-dimensional structure having a sense of strength and weight while reducing the possibility of defects in forming the outer shell.
  • the outer shell is translucent and the filler is opaque, the color of the filler is visually recognized through the translucent shell, and the surface of the three-dimensional object is a real product. It is possible to express the human-like texture, or the luxury feeling as if it were not a toy.
  • FIG. 2 is a perspective view showing an outline of a configuration of a humanoid model 20.
  • FIG. 2 is a cross-sectional view showing an outline of a configuration of a humanoid model 20.
  • 5 is a flowchart showing an example of a method of manufacturing the humanoid model 20.
  • a humanoid model 20 which is an example of an embodiment of the present invention will be described in detail based on the drawings briefly described above.
  • the embodiments and drawings to be described below exemplify a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations, and within the scope not departing from the gist of the present invention It can be changed as appropriate.
  • a humanoid model is described here as an example, the present invention is not limited to one imitating a human being, and may be a virtual human such as an anime character or a character of a book, and objects, animals and plants are It may be anthropomorphic.
  • the humanoid model 20 corresponding to the three-dimensional structure of the present invention is a humanoid model imitating a humanoid as shown in FIG. 1, and as shown in FIG. 40 is formed by covering in the state which has translucency.
  • the powder is stacked using a 3D printer to form the outer shell 40 (step S110, corresponding to the “forming step” of the present invention)
  • the inner shell 40 is formed.
  • the filler is filled (step S120, corresponding to the "filling step” of the present invention) to form the filling portion 30.
  • the outer shell 40 having the hollow space 42 located on the outside of the filling portion 30 of the humanoid model 20 with the 3D printer the formation is performed with the 3D printer as compared with the case without the hollow space 42.
  • the weight of the shell 40 can be reduced, and the possibility of failure due to weight can be reduced.
  • the filling portion 30 by forming the filling portion 30 by filling the filler at a position where the outer shell 40 is covered by the outer shell 40 after forming the outer shell 40, the strength can be increased as compared with the case where the filling portion 30 is not provided. it can.
  • the resins that are mainly used in molding with 3D printers have low strength and are weak to heat, and when using a human shape, there are many cases that support the entire weight with two feet, so The effect of applying the invention to the humanoid model 20 is particularly large.
  • the filling portion 30 by forming the filling portion 30 by being filled with the filler, the weight is increased as compared with the case where the hollow space 42 is not filled with anything, so that it is possible to produce a sense of weight and luxury.
  • the whole including the clothing portion is covered with the outer shell 40, the clothing portion and the decorative portion may be separately worn, and only the portion excluding these portions may be covered with the outer shell 40. .
  • the outer shell 40 is formed in a light transmitting state.
  • the outer shell 40 is formed in a thickness having translucency.
  • the thickness having translucency can be appropriately selected according to the material and color, but for example, acrylic resin such as polymethyl methacrylate resin, ABS resin, polylactic acid resin, woodlike filament, In the case of using a polypropylene resin, polyurethane resin, copper filament, flexible filament, gypsum, etc. and containing a white or milky white pigment, for example, a thickness of 2.0 mm or less is preferable, and a thickness of 1.2 mm or less More preferable.
  • the outer shell 40 can be made to be translucent by appropriately reducing the thickness according to the light shielding performance of the pigment.
  • the filling portion 30 is filled with a colored resin member, and is made of, for example, polyurethane resin, polypropylene resin, ABS resin, vinyl chloride resin, acrylic resin, silicone resin, rubber, etc.
  • the filling part 30 is formed by being filled.
  • the filler is not particularly limited, but is preferably a heavy material. By doing this, it is possible to give the humanoid model 20 a sense of weight, so that it can give a sense of luxury when the consumer takes it. Moreover, it is preferable that it is what has intensity
  • a color of the filling part 30 it is preferable that it is a color which represents skin of a creature, such as white, skin color, wheat color, for example.
  • a color which represents skin of a creature such as white, skin color, wheat color, for example.
  • the thickness of the outer shell 40 is formed with a non-uniform thickness of 0.4 mm or more and 1.2 mm or less. Specifically, the thickness of the outer side of the outer shell 40 and the inner side of the outer shell 40 (the boundary between the hollow space 42 and the outer shell 40) is 0.4 mm at the thinnest portion and 1.2 mm at the thickest portion It is formed to be By doing this, even if the color of the filling portion 30 is the same, a natural change occurs in the color when viewed through the outer shell 40 depending on the thickness of the outer shell 40, so that a realistic sense of luxury can be produced. be able to.
  • non-uniform thickness means, as shown in FIG. 2, the thickness of the outer shell 40 in the cut surface cut in the portion A in FIG. 1 and the cut in the portion B in FIG. Not only the thickness of the outer shell 40 in the surface is thin, but also in the same cut surface, there are cases where thick and thin portions of the outer shell 40 exist.
  • the shell 40 contains a pigment of a predetermined color such as white or milky white
  • the white or milky shell 40 is used.
  • natural skin texture can be produced, and natural reality can be produced on the skin of the humanoid model 20.
  • the thickness of the outer shell 40 is an uneven thickness between thick and thin portions, by including a white or milky pigment in the outer shell 40, natural skin texture is expressed. It can further produce natural reality.
  • the filling portion 30 is formed by being filled with the opaque filler by the translucent outer shell 40, The color is visually recognized through the shell 40, which can produce a sense of luxury.
  • the outer shell 40 is formed to have a non-uniform thickness, the color of the filling portion 30 viewed through the outer shell 40 changes in accordance with the thickness of the outer shell 40.
  • a real human-like texture can be produced as the skin quality of the model 20.
  • the filler is a heavier material than the outer shell 40, it is heavier than the case where the human-shaped model 20 is formed of the same material as the outer shell 40, giving a sense of weight and luxury. Can.
  • the thickness of the outer shell 40 is 0.4 mm or more and 1.2 mm or less, the weight that can be formed by the 3D printer and the necessary strength are compatible, and the color of the filling portion 30 via the outer shell 40 Can be easily viewed.
  • the shell 40 is white or milky white and translucent, and the filling part is any one of white, orange, brown and black, the filling is carried out through the white or milky shell 40.
  • the filling is carried out through the white or milky shell 40.
  • the outer shell 40 is an ultraviolet curable resin containing a white or milky white pigment, it is possible to uniformly cure the resin containing a pigment even if using a 3D printer that forms the resin by a method of curing the ultraviolet irradiation. it can. In other words, since it is possible to use a resin containing a pigment in the outer shell, it is possible to increase the choice of formable resin.
  • the outer shell 40 contains a white or milky white pigment, but the color of the pigment contained is not limited to white or milky white, and includes pigments of various colors. Or a pigment of a plurality of colors may be included.
  • the outer shell 40 may not contain a pigment. In any case, since the filling portion 30 is visually recognized through the outer shell 40, a high-class feeling can be produced.
  • the outer shell 40 is a material having translucency, but may be a colorless and transparent material, or may be a colored and transparent material, and is transparent including a pigment. It may be a raw material. In any case, since the filling portion 30 is visually recognized through the outer shell 40, a high-class feeling can be produced as compared with the case where the outer shell 40 is not provided.
  • the thickness of the outer shell 40 is not uniform, but may be uniform. Also in this case, the same effect as that of the above-described embodiment can be obtained.
  • it can be used as a model field, in particular, as a humanoid model.

Abstract

[Problem] To make it possible to provide a model having excellent texture and adequate strength. [Solution] A hollow space 42 of a translucent shell 40 is filled with a non-transparent filler, whereby a filled part 30 is formed, and the color of the filled part 30 is therefore visible through the shell 40. Through this configuration, the filled part 30 is visible through the translucent shell 40, and a sense of transparency and luxuriousness can thereby be produced. Furthermore, strength can be increased relative to a case in which there is no filled part 30.

Description

三次元造形物及びこの製造方法Three-dimensional structure and method of manufacturing the same
　本発明は、三次元造形物及びこの製造方法に関する。 The present invention relates to a three-dimensional structure and a method of manufacturing the same.
　近年、３Ｄプリンタを用いた三次元造形物の造形が増えてきており、様々な造形方法により三次元造形物が造形されている。例えば、特許文献１には、三次元計測装置を用いて撮影することにより得られる対象の三次元データに基づいて対象の模型を製造する方法であって、模型の第１部と第２部とを互いに異なる材質の材料によってそれぞれ準備し、三次元計測装置による撮影で対象の一部分の三次元データを得て、得られた三次元データに基づいて第１部の材料に対して加工を行い、加工された第１部と第２部とを互いに接合することによって一体化する製造方法が記載されている。こうすることにより、対象人物の立体造形を造形するに当たって、三次元データを得るための撮影及び材料の加工に要する時間を低減することができる。 In recent years, modeling of a three-dimensional structure using a 3D printer has been increasing, and three-dimensional structures are formed by various modeling methods. For example, Patent Document 1 discloses a method of manufacturing a model of a target based on three-dimensional data of a target obtained by imaging using a three-dimensional measuring device, and the first part and the second part of the model Are prepared from materials different from each other, three-dimensional data of a part of the object is obtained by photographing with a three-dimensional measuring device, and processing is performed on the material of the first part based on the obtained three-dimensional data; A manufacturing method is described in which the machined first and second parts are integrated by joining them together. By doing this, it is possible to reduce the time required for imaging and processing of materials for obtaining three-dimensional data in forming a three-dimensional model of the target person.
特開平１１－２１６２７３号公報Japanese Patent Application Laid-Open No. 11-216273
　ところで、近年になって、様々なキャラクターを模した模型が人気を博しており、種々の模型が製造されている。これらの模型は、模型の形状がキャラクターを模しているだけでなく、キャラクター等の細部にまでわたる再現性や質感等、品質に対する要求が高くなると共に、等身大の模型等大型化も求められており、高品質で十分な強度が求められている。 By the way, in recent years, models imitating various characters have gained popularity, and various models have been manufactured. In these models, not only the shape of the model imitates the character, but the demand for quality such as reproducibility and texture extending to details of the character and the like becomes high, and upsizing of the life-size model is also required. High quality and sufficient strength are required.
　しかしながら、従来の金型を用いてこの模型を作製しようとすると、キャラクター等の細部（例えば、髪の毛や肌の質感、臨場感のあるポーズ等）を再現することができないという課題がある。また、例えば、３Ｄプリンタ等を用いた立体造形によってこの模型を作製しようとすると、３Ｄプリンタでは重量のある模型を造形することができないため、模型に重量感を与えることができないという課題がある。 However, when trying to produce this model using a conventional mold, there is a problem that details such as characters and the like (for example, the texture of hair and skin, a pose with a sense of reality, etc.) can not be reproduced. In addition, for example, when this model is to be produced by three-dimensional modeling using a 3D printer or the like, there is a problem that the model can not be given a sense of weight because the 3D printer can not model a heavy model.
　また、特許文献１に記載のように、３Ｄプリンタで作製可能な重量にするために複数のパーツに分割して造形すると、パーツを結合する労力が必要となることに加え、結合部の強度が不十分になる可能性があるという課題がある。 Further, as described in Patent Document 1, when a plurality of parts are divided and shaped to have a weight that can be manufactured by a 3D printer, in addition to requiring labor for connecting the parts, the strength of the joint is There is a problem that it may become insufficient.
　本発明は、このような課題に鑑みなされたものであり、優れた質感と十分な強度を有する模型を提供することを主目的とする。また、この模型の製造方法を提供することも目的とする。 This invention is made in view of such a subject, and makes it a main purpose to provide the model which has the outstanding texture and sufficient intensity | strength. Another object is to provide a method of manufacturing this model.
　本発明は、上述の主目的を達成するために以下の手段を採った。 The present invention adopts the following means in order to achieve the above-mentioned main objects.
　本発明の三次元造形物は、
　中空空間部を有し、所定の形状の輪郭状に造形され、透光性を有する外殻と、
　前期中空空間部に充填された不透明な充填材からなる充填部と、
　を備えたことを特徴とする、
　ものである。 The three-dimensional structure of the present invention is
A light transmitting outer shell having a hollow space portion and shaped into a contour of a predetermined shape;
A filling portion made of an opaque filler filled in the hollow space portion;
Characterized by
It is a thing.
　この三次元造形物は、外殻が所定の形状の透光性を有する輪郭形状に造形されることで中空空間部を有し、この中空空間部に充填材が充填され充填部が形成される。このように中空空間部を設けることにより、外殻の重量を軽減することができるため、３Ｄプリンタを用いて外殻を造形する際、重量により造形が失敗する可能性を低減することができる。また、外殻は透光性を有し、充填部が不透明であるため、充填部の色が透光性を有する外殻を介して視認されることになる。こうすることにより、外殻を有しない場合と比較すると、三次元造形物の表面に透明感や高級感を与えることができる。 In this three-dimensional structure, the outer shell is shaped into a light-transmissive outline having a predetermined shape, and has a hollow space portion, and the hollow space portion is filled with a filler to form a filling portion. . By providing the hollow space portion in this manner, the weight of the shell can be reduced, and therefore, when the shell is molded using a 3D printer, the possibility of modeling failure due to weight can be reduced. In addition, since the outer shell is translucent and the filling portion is opaque, the color of the filling portion is visually recognized through the translucent outer shell. By doing this, the surface of the three-dimensional structure can be given a sense of transparency and high-quality as compared to the case where it does not have an outer shell.
　本発明の三次元造形物において、前記充填材は、前記外殻を構成する素材よりも強度の強い素材からなることを特徴としてもよい。こうすることにより、中空空間部により強度の強い素材からなる充填材が充填されることになるため、強度を高めることができる。 In the three-dimensional structure of the present invention, the filler may be made of a material that is stronger than the material of which the outer shell is made. By this, the hollow space portion is filled with the filler made of the material having high strength, and therefore the strength can be enhanced.
　本発明の三次元造形物において、前記外殻の厚さは、０．４ミリメートル以上１．２ミリメートル以下であることを特徴としてもよい。こうすることにより、充填部の色が同一であっても、外殻の厚さによって外殻を介して視認する際の色に自然な変化が生じるため、リアルな高級感を演出することができる。このとき、外殻の厚さが０．４ミリメートル以上とすることで、３Ｄプリンタで三次元造形する際、十分な強度を得ることができる。また、外殻の厚さを１．２ミリメートル以下とすることで、外殻を介して充填部の色を容易に視認することができる。 In the three-dimensional structure of the present invention, the thickness of the outer shell may be 0.4 mm or more and 1.2 mm or less. By doing this, even if the color of the filling portion is the same, a natural change occurs in the color when viewed through the outer shell due to the thickness of the outer shell, so it is possible to produce a realistic luxury feeling . At this time, when the thickness of the outer shell is 0.4 mm or more, sufficient strength can be obtained when three-dimensional forming with a 3D printer. Further, by setting the thickness of the outer shell to 1.2 mm or less, the color of the filling portion can be easily visually recognized through the outer shell.
　本発明の三次元造形物において、前記外殻の厚さは、不均一の厚さであることを特徴としてもよい。こうすることにより、厚い部分と薄い部分とで外殻を介して視認される充填部の色が変化するため、充填部の色を変化させることなく、視認される色の変化を表現することができる。また、人物や人型のキャラクターに本発明を適用した場合には、人物や人型のキャラクターの肌の色が変化することになり、本物の人間のような質感、付言すると、玩具でないかのような高級感を表現することができる。 In the three-dimensional structure of the present invention, the thickness of the outer shell may be characterized by being a non-uniform thickness. By doing this, the color of the filling portion seen through the outer shell changes between the thick portion and the thin portion, so that the change in the visible color can be expressed without changing the color of the filling portion. it can. In addition, when the present invention is applied to a person or humanoid character, the color of the skin of the person or humanoid character changes, so that the real human-like texture, in addition, it is not a toy Can express such a sense of luxury.
　本発明の三次元造形物において、前記外殻は、白色又は乳白色の透光性を有し、前記充填部は、肌色、白色、橙色、茶色及び黒色からなる群から選ばれる色を有することを特徴としてもよい。こうすることにより、充填部が視認される際、白色又は乳白色の外殻を介して視認されることになるため、生物の肌と似た質感を与えることができる。付言すると、外殻の厚さが不均一であるため、厚い部分は白色又は乳白色の影響が強くなり、薄い部分は白色又は乳白色の影響が小さくなる。このため、人型模型の肌部に本発明を適用した場合、三次元造形物の肌の質感にリアリティを演出することができる。 In the three-dimensional structure of the present invention, the outer shell has a white or milky white light transmitting property, and the filling portion has a color selected from the group consisting of skin color, white, orange, brown and black. It may be a feature. By doing this, when the filling portion is visually recognized, it is visually recognized through the white or milky-white shell, so that it is possible to give a texture similar to the skin of an organism. In addition, because the thickness of the shell is uneven, the thick part has a strong white or milky effect and the thin part has a small white or milky effect. For this reason, when the present invention is applied to the skin of a humanoid model, reality can be produced on the texture of the skin of a three-dimensional object.
　本発明の三次元造形物において、前記外殻は、顔料を含む紫外線硬化樹脂であることを特徴としてもよい。外殻に紫外線硬化樹脂を用いることで、外殻に顔料を含ませた場合であっても、紫外線照射によって樹脂を硬化させる方法で造形する３Ｄプリンタを用いても、顔料を含む樹脂を高速で、かつ、均一に硬化させることができる。このため、外殻に顔料を含む樹脂を使用することができるため、造形可能な樹脂の選択肢を増加させることができる。 In the three-dimensional structure of the present invention, the outer shell may be a UV curable resin containing a pigment. Even when a pigment is contained in the outer shell by using an ultraviolet curing resin for the outer shell, the resin containing the pigment can be processed at high speed even if a 3D printer is used to form the resin by a method of curing the resin by ultraviolet irradiation. And, it can be cured uniformly. For this reason, since resin which contains a pigment in an outer shell can be used, the choice of resin which can be modeled can be increased.
　本発明の三次元造形物の製造方法は、
　所定の構造の外面位置に位置し、透光性を有する外殻と、前記外殻の内側に充填される不透明な充填材と、を備えた所定の構造を有する三次元造形物の製造方法であって、
　透光性を有する粉体を積層して前記外殻を形成する形成ステップと、
　前記形成ステップで形成した前記外殻の内側に前記充填材を充填する充填ステップと、
　を含むことを特徴とする、
　ものである。 The method for producing a three-dimensional structure of the present invention is
A method for producing a three-dimensional structure having a predetermined structure, comprising: a light transmitting outer shell located on an outer surface position of a predetermined structure; and an opaque filler filled inside the outer shell. There,
Forming the outer shell by laminating translucent powders;
Filling the filling material inside the shell formed in the forming step;
Characterized in that,
It is a thing.
　この三次元造形物の製造方法では、透光性を有する粉体を積層して前記外殻を形成した後に、外殻の内側に不透明な充填材を充填することにより、外殻の重量を軽減することができるため、３Ｄプリンタを用いて外殻を造形する際、重量により造形不良となる可能性を低減することができる。加えて、内側に充填材を充填することにより、外殻を造形する際の不良の可能性を低減しつつ、強度及び重量感を有する三次元造形物を製造することができる。また、外殻は透光性を有し、充填材が不透明であるため、充填材の色が透光性を有する外殻を介して視認されることになり、三次元造形物の表面に本物の人間のような質感、付言すると、玩具でないかのような高級感を表現することができる。 In this method of manufacturing a three-dimensional structure, after the light-transmitting powder is laminated to form the outer shell, the weight of the outer shell is reduced by filling the inside of the outer shell with an opaque filler. Therefore, when forming an outer shell using a 3D printer, it is possible to reduce the possibility of forming defects due to weight. In addition, by filling the inner side with the filler, it is possible to produce a three-dimensional structure having a sense of strength and weight while reducing the possibility of defects in forming the outer shell. In addition, since the outer shell is translucent and the filler is opaque, the color of the filler is visually recognized through the translucent shell, and the surface of the three-dimensional object is a real product. It is possible to express the human-like texture, or the luxury feeling as if it were not a toy.
人型模型２０の構成の概略を示す斜視図である。FIG. 2 is a perspective view showing an outline of a configuration of a humanoid model 20. 人型模型２０の構成の概略を示す断面図である。FIG. 2 is a cross-sectional view showing an outline of a configuration of a humanoid model 20. 人型模型２０の製造方法の一例を示すフローチャートである。5 is a flowchart showing an example of a method of manufacturing the humanoid model 20.
　次に、上記簡単に説明した図面に基づいて、本発明の実施の形態の一例である人型模型２０について詳しく説明する。以下に説明する実施の形態及び図面は、本発明の実施形態の一部を例示するものであり、これらの構成に限定する目的に使用されるものではなく、本発明の要旨を逸脱しない範囲において適宜変更することができる。なお、ここでは人型模型を一例として説明するが、人間を模したものに限定されるものではなく、アニメのキャラクターや書籍の登場人物等の仮想の人間であっても良く、物や動植物が擬人化されたものであってもよい。 Next, a humanoid model 20 which is an example of an embodiment of the present invention will be described in detail based on the drawings briefly described above. The embodiments and drawings to be described below exemplify a part of the embodiments of the present invention, and are not used for the purpose of limiting to these configurations, and within the scope not departing from the gist of the present invention It can be changed as appropriate. Although a humanoid model is described here as an example, the present invention is not limited to one imitating a human being, and may be a virtual human such as an anime character or a character of a book, and objects, animals and plants are It may be anthropomorphic.
　本発明の三次元構造物に相当する人型模型２０は、図１に示すように、人型を模した人型模型であって、図２に示すように、充填部３０の外側を外殻４０が透光性を有する状態で覆うことにより形成されている。具体的には、図３に示すように、３Ｄプリンタを用いて粉体を積層し外殻４０を形成した後に（ステップＳ１１０，本発明の「形成ステップ」に相当）、外殻４０の内側に充填材を充填し（ステップＳ１２０，本発明の「充填ステップ」に相当）充填部３０を形成する。このように人型模型２０の充填部３０の外側に位置し、中空空間４２を有する外殻４０を３Ｄプリンタで造形することにより、中空空間４２を有しない場合と比較して、３Ｄプリンタで造形する際の外殻４０の重量を低減することができ、重量による不良の可能性を低減することができる。加えて、外殻４０を造形後に外殻４０に覆われる位置に充填材を充填することにより充填部３０を形成することで、充填部３０を有しない場合と比較して、強度を高めることができる。特に、３Ｄプリンタでの造形で主に使用される樹脂は、強度が低かったり、熱に弱かったりするものが多く、人型にする場合、二足で全体の重量を支えるケースが多いため、本発明を人型模型２０に適用する効果が特に大きい。加えて、充填材を充填することで充填部３０を形成することにより、中空空間４２に何も充填しない場合と比較して重量が増加するため、重量感及び高級感を演出することができる。なお、ここでは、着衣部分を含む全体を外殻４０で覆うものとしたが、着衣部分や装飾部を別途着装するものとし、これらの部分を除く部分のみを外殻４０で覆うものとしてもよい。 The humanoid model 20 corresponding to the three-dimensional structure of the present invention is a humanoid model imitating a humanoid as shown in FIG. 1, and as shown in FIG. 40 is formed by covering in the state which has translucency. Specifically, as shown in FIG. 3, after the powder is stacked using a 3D printer to form the outer shell 40 (step S110, corresponding to the “forming step” of the present invention), the inner shell 40 is formed. The filler is filled (step S120, corresponding to the "filling step" of the present invention) to form the filling portion 30. As described above, by forming the outer shell 40 having the hollow space 42 located on the outside of the filling portion 30 of the humanoid model 20 with the 3D printer, the formation is performed with the 3D printer as compared with the case without the hollow space 42. The weight of the shell 40 can be reduced, and the possibility of failure due to weight can be reduced. In addition, by forming the filling portion 30 by filling the filler at a position where the outer shell 40 is covered by the outer shell 40 after forming the outer shell 40, the strength can be increased as compared with the case where the filling portion 30 is not provided. it can. In particular, many of the resins that are mainly used in molding with 3D printers have low strength and are weak to heat, and when using a human shape, there are many cases that support the entire weight with two feet, so The effect of applying the invention to the humanoid model 20 is particularly large. In addition, by forming the filling portion 30 by being filled with the filler, the weight is increased as compared with the case where the hollow space 42 is not filled with anything, so that it is possible to produce a sense of weight and luxury. Here, although the whole including the clothing portion is covered with the outer shell 40, the clothing portion and the decorative portion may be separately worn, and only the portion excluding these portions may be covered with the outer shell 40. .
　このとき、外殻４０は、透光性を有する状態で形成される。具体的には、外殻４０を造形する際、外殻４０の材質に応じて、透光性を有する厚さに造形する。このとき、透光性を有する厚さとは、材質や色に応じて、適宜選択することができるが、例えば、ポリメタクリル酸メチル樹脂等のアクリル樹脂、ＡＢＳ樹脂、ポリ乳酸樹脂、ウッドライクフィラメント、ポリプロピレン樹脂、ポリウレタン樹脂、銅フィラメント、フレキシブルフィラメント、石膏等を用い、白色又は乳白色の顔料を含む場合には、例えば、２．０ミリメートル以下の厚さが好ましく、１．２ミリメートル以下の厚さがより好ましい。こうすることにより、外殻４０を介して中空空間４２に充填された充填部３０を視認することができ、透明感や高級感を演出することができる。なお、遮光性の高い顔料を用いる場合には、顔料の遮光性能に応じて、適宜薄くすることにより、外殻４０に透光性を持たせることができる。 At this time, the outer shell 40 is formed in a light transmitting state. Specifically, when forming the outer shell 40, according to the material of the outer shell 40, the outer shell 40 is formed in a thickness having translucency. At this time, the thickness having translucency can be appropriately selected according to the material and color, but for example, acrylic resin such as polymethyl methacrylate resin, ABS resin, polylactic acid resin, woodlike filament, In the case of using a polypropylene resin, polyurethane resin, copper filament, flexible filament, gypsum, etc. and containing a white or milky white pigment, for example, a thickness of 2.0 mm or less is preferable, and a thickness of 1.2 mm or less More preferable. By doing this, it is possible to visually recognize the filling portion 30 filled in the hollow space 42 through the outer shell 40, and it is possible to produce a sense of transparency and a sense of luxury. In the case of using a pigment having a high light shielding property, the outer shell 40 can be made to be translucent by appropriately reducing the thickness according to the light shielding performance of the pigment.
　充填部３０は、有色の樹脂製部材が充填されてなり、例えば、ポリウレタン樹脂やポリプロピレン樹脂、ＡＢＳ樹脂、塩化ビニル樹脂、アクリル樹脂、シリコーン樹脂、ゴム等からなり、外殻４０の内側に充填材が充填されることで充填部３０が形成されている。このとき、充填材は特に限定されるものではないが、重量の重い材質であることが好ましい。こうすることにより、人型模型２０に重量感を与えることができるため、需要者が手に取った際、高級感を与えることができる。また、充填材として、強度が強いもの、又は、耐熱性の優れたものであることが好ましい。こうすることにより、外殻４０を造形する際に使用する素材として、強度や耐熱性に優れた素材に限定されることなく、３Ｄプリンタで使用可能な種々の素材を使用することができるため、３Ｄプリンタで造形する際の素材の選択の自由度を向上させることができる。 The filling portion 30 is filled with a colored resin member, and is made of, for example, polyurethane resin, polypropylene resin, ABS resin, vinyl chloride resin, acrylic resin, silicone resin, rubber, etc. The filling part 30 is formed by being filled. At this time, the filler is not particularly limited, but is preferably a heavy material. By doing this, it is possible to give the humanoid model 20 a sense of weight, so that it can give a sense of luxury when the consumer takes it. Moreover, it is preferable that it is what has intensity | strength or is excellent in heat resistance as a filler. By doing this, various materials usable in the 3D printer can be used without being limited to materials excellent in strength and heat resistance as materials used when modeling the outer shell 40. It is possible to improve the degree of freedom in the selection of materials when forming with a 3D printer.
　また、充填部３０の色としては、例えば、白色や肌色、小麦色等、生き物の肌を表す色であることが好ましい。こうすることにより、外殻４０を介して充填部３０が視認された際、外殻４０を有しない場合と比較して、人間の肌に近いような印象を視認者に与えることができる。言い換えると、人型模型２０のリアリティを出すことができるため、より高級感を出すことができる。 Moreover, as a color of the filling part 30, it is preferable that it is a color which represents skin of a creature, such as white, skin color, wheat color, for example. In this way, when the filling portion 30 is viewed through the outer shell 40, an impression similar to human skin can be given to the viewer as compared with the case where the outer shell 40 is not provided. In other words, since the reality of the humanoid model 20 can be provided, a more sophisticated feeling can be provided.
　また、図２に示すように、外殻４０の厚さは、０．４ミリメートル以上１．２ミリメートル以下の不均一な厚さで形成されている。具体的には、外殻４０の外側と外殻４０の内側（中空空間４２と外殻４０との境界）の厚さが、最も薄い部分で０．４ミリメートル、最も厚い部分で１．２ミリメートルとなるように形成されている。こうすることにより、充填部３０の色が同一であっても、外殻４０の厚さによって外殻４０を介して視認する際の色に自然な変化が生じるため、リアルな高級感を演出することができる。このとき、外殻４０の厚さが０．４ミリメートル以上とすることで、３Ｄプリンタで三次元造形する際、十分な強度を得ることができる。また、外殻４０の厚さを１．２ミリメートル以下とすることで、外殻４０を介して充填部３０の色を容易に視認することができる。なお、ここで「不均一の厚さ」とは、図２に示すように、図１のＡ部で切断した切断面における外殻４０の厚さが厚く、図１のＢ部で切断した切断面における外殻４０の厚さが薄い状態だけでなく、同一の切断面においても、外殻４０の厚さが厚い部分と薄い部分が存在する場合も含むものとする。 Further, as shown in FIG. 2, the thickness of the outer shell 40 is formed with a non-uniform thickness of 0.4 mm or more and 1.2 mm or less. Specifically, the thickness of the outer side of the outer shell 40 and the inner side of the outer shell 40 (the boundary between the hollow space 42 and the outer shell 40) is 0.4 mm at the thinnest portion and 1.2 mm at the thickest portion It is formed to be By doing this, even if the color of the filling portion 30 is the same, a natural change occurs in the color when viewed through the outer shell 40 depending on the thickness of the outer shell 40, so that a realistic sense of luxury can be produced. be able to. At this time, when the thickness of the outer shell 40 is 0.4 mm or more, sufficient strength can be obtained when three-dimensional forming with a 3D printer. Moreover, the color of the filling part 30 can be easily visually recognized through the outer shell 40 by setting the thickness of the outer shell 40 to 1.2 mm or less. Here, "non-uniform thickness" means, as shown in FIG. 2, the thickness of the outer shell 40 in the cut surface cut in the portion A in FIG. 1 and the cut in the portion B in FIG. Not only the thickness of the outer shell 40 in the surface is thin, but also in the same cut surface, there are cases where thick and thin portions of the outer shell 40 exist.
　更に、外殻４０には、白色又は乳白色等、所定の色の顔料が含まれているため、外殻４０を介して充填部３０が視認される際に、白色又は乳白色の外殻４０を介して視認されることになり、外殻４０が透明な場合と比較して、自然な肌の質感を演出することができ、人型模型２０の肌部に自然なリアリティを演出することができる。特に、外殻４０の厚さを厚い部分と薄い部分の不均一な厚さとした場合には、外殻４０に白色又は乳白色の顔料を含ませることにより、自然な肌の質感が表現されるため、自然なリアリティを更に演出することができる。 Furthermore, since the shell 40 contains a pigment of a predetermined color such as white or milky white, when the filling portion 30 is viewed through the shell 40, the white or milky shell 40 is used. As compared with the case where the outer shell 40 is transparent, natural skin texture can be produced, and natural reality can be produced on the skin of the humanoid model 20. In particular, when the thickness of the outer shell 40 is an uneven thickness between thick and thin portions, by including a white or milky pigment in the outer shell 40, natural skin texture is expressed. It can further produce natural reality.
　以上詳述した本実施の形態の人型模型２０によれば、透光性を有する外殻４０によって不透明な充填材が充填されることで充填部３０が形成されているため、充填部３０の色が外殻４０を介して視認されることになり、高級感を演出することができる。このとき、外殻４０は不均一な厚さで形成されているため、外殻４０を介して視認される充填部３０の色が外殻４０の厚さに応じて変化することになり、人型模型２０の肌質として本物の人間のような質感を演出することができる。 According to the humanoid model 20 of the present embodiment described above, since the filling portion 30 is formed by being filled with the opaque filler by the translucent outer shell 40, The color is visually recognized through the shell 40, which can produce a sense of luxury. At this time, since the outer shell 40 is formed to have a non-uniform thickness, the color of the filling portion 30 viewed through the outer shell 40 changes in accordance with the thickness of the outer shell 40. A real human-like texture can be produced as the skin quality of the model 20.
　また、外殻４０よりも充填材は重い素材であるため、外殻４０と同一の素材で人型模型２０を造形する場合と比較して、重量が重くなり、重量感と高級感を与えることができる。 In addition, since the filler is a heavier material than the outer shell 40, it is heavier than the case where the human-shaped model 20 is formed of the same material as the outer shell 40, giving a sense of weight and luxury. Can.
　更に、外殻４０の厚さが０．４ミリメートル以上１．２ミリメートル以下であるため、３Ｄプリンタで造形可能な重さと必要な強度を両立すると共に、外殻４０を介して充填部３０の色を容易に視認することができる。 Furthermore, since the thickness of the outer shell 40 is 0.4 mm or more and 1.2 mm or less, the weight that can be formed by the 3D printer and the necessary strength are compatible, and the color of the filling portion 30 via the outer shell 40 Can be easily viewed.
　更にまた、外殻４０には白色又は乳白色で透光性を有し、充填部は、白色、橙色、茶色、黒色のいずれかの色であるため、白色又は乳白色の外殻４０を介して充填部３０が視認されることにより、生物の肌と似た質感を与え質感にリアリティを演出することができる。 Furthermore, since the shell 40 is white or milky white and translucent, and the filling part is any one of white, orange, brown and black, the filling is carried out through the white or milky shell 40. By visually recognizing the part 30, it is possible to give a texture similar to the skin of an organism and to render reality in the texture.
　そして、外殻４０は、白色又は乳白色の顔料を含む紫外線硬化樹脂であるため、紫外線照射によって樹脂を硬化させる方法で造形する３Ｄプリンタを用いても、顔料を含む樹脂をムラ無く硬化させることができる。言い換えると、外殻に顔料を含む樹脂を使用することができるため、造形可能な樹脂の選択肢を増加させることができる。 And, since the outer shell 40 is an ultraviolet curable resin containing a white or milky white pigment, it is possible to uniformly cure the resin containing a pigment even if using a 3D printer that forms the resin by a method of curing the ultraviolet irradiation. it can. In other words, since it is possible to use a resin containing a pigment in the outer shell, it is possible to increase the choice of formable resin.
　なお、本発明は上述した実施形態に何ら限定されることはなく、本発明の技術的範囲に属する限り種々の態様で実施し得ることはいうまでもない。 It is needless to say that the present invention is not limited to the above-mentioned embodiment at all, and can be implemented in various modes within the technical scope of the present invention.
　例えば、上述した実施の形態では、外殻４０に白色又は乳白色の顔料を含むものとしたが、含まれる顔料の色は白色又は乳白色に限定されるものではなく、種々の色の顔料を含んでいても良いし、複数の色の顔料が含まれていてもよい。また、外殻４０には、顔料が含まれていなくてもよい。いずれの場合であっても、充填部３０が外殻４０を介して視認されることになるため、高級感を演出することができる。 For example, in the above-described embodiment, the outer shell 40 contains a white or milky white pigment, but the color of the pigment contained is not limited to white or milky white, and includes pigments of various colors. Or a pigment of a plurality of colors may be included. The outer shell 40 may not contain a pigment. In any case, since the filling portion 30 is visually recognized through the outer shell 40, a high-class feeling can be produced.
　上述した実施の形態では、外殻４０は透光性を有する素材であるものとしたが、無色透明な素材であっても良いし、有色透明な素材であってもよいし、顔料を含む透明な素材であってもよい。いずれの場合であっても、外殻４０を介して充填部３０が視認されることになるため、外殻４０を有しない場合と比較して、高級感を演出することができる。 In the embodiment described above, the outer shell 40 is a material having translucency, but may be a colorless and transparent material, or may be a colored and transparent material, and is transparent including a pigment. It may be a raw material. In any case, since the filling portion 30 is visually recognized through the outer shell 40, a high-class feeling can be produced as compared with the case where the outer shell 40 is not provided.
　上述した実施の形態では、外殻４０の厚さは不均一であるものとしたが、均一であってもよい。この場合も、上述した実施の形態と同様の効果が得られる。 In the embodiment described above, the thickness of the outer shell 40 is not uniform, but may be uniform. Also in this case, the same effect as that of the above-described embodiment can be obtained.
　上述した実施の形態で示すように、模型分野、特に人型模型として利用することができる。 As shown in the above-mentioned embodiment, it can be used as a model field, in particular, as a humanoid model.
　２０…人型模型、３０…充填部、４０…外殻、４２…中空空間。 20: Human model, 30: Filling portion, 40: Outer shell, 42: Hollow space.

Claims (7)

  1. 　中空空間部を有し、所定の形状の輪郭状に造形され、透光性を有する外殻と、
    　前記中空空間部に充填された不透明な充填材からなる充填部と、
    　を備えたことを特徴とする、
    　三次元造形物。     A light transmitting outer shell having a hollow space portion and shaped into a contour of a predetermined shape;
    A filling portion made of an opaque filling material filled in the hollow space portion;
    Characterized by
    Three-dimensional object.
  2. 　前記充填材は、前記外殻を構成する素材よりも強度の強い素材からなることを特徴とする、
    　請求項１に記載の三次元造形物。     The filler is characterized in that it is made of a material that is stronger than the material that constitutes the shell.
    The three-dimensional structure according to claim 1.
  3. 　前記外殻の厚さは、０．４ミリメートル以上１．２ミリメートル以下であることを特徴とする、
    　請求項１又は２に記載の三次元造形物。     The thickness of the outer shell is 0.4 mm or more and 1.2 mm or less,
    The three-dimensional structure according to claim 1 or 2.
  4. 　前記外殻の厚さは、不均一の厚さであることを特徴とする、
    　請求項１から３のいずれか１項に記載の三次元造形物。     The thickness of the shell is characterized by a non-uniform thickness,
    The three-dimensional structure according to any one of claims 1 to 3.
  5. 　前記外殻は、白色又は乳白色の透光性を有し、
    　前記充填部は、肌色、白色、橙色、茶色及び黒色からなる群から選ばれる色を有することを特徴とする、
    　請求項１から４のいずれか１項に記載の三次元造形物。     The shell has a white or milky white light transmitting property,
    The filling part has a color selected from the group consisting of skin color, white, orange, brown and black.
    The three-dimensional structure according to any one of claims 1 to 4.
  6. 　前記外殻は、顔料を含む紫外線硬化樹脂であることを特徴とする、
    　請求項１から５のいずれか１項に記載の三次元造形物。     The outer shell is a UV curable resin containing a pigment,
    The three-dimensional structure according to any one of claims 1 to 5.
  7. 　所定の構造の外面位置に位置し、透光性を有する外殻と、前記外殻の内側に充填される不透明な充填材と、を備えた所定の構造を有する三次元造形物の製造方法であって、
    　透光性を有する粉体を積層して前記外殻を形成する形成ステップと、
    　前記形成ステップで形成した前記外殻の内側に前記充填材を充填する充填ステップと、
    　を含むことを特徴とする、
    　三次元造形物の製造方法。     A method for producing a three-dimensional structure having a predetermined structure, comprising: a light transmitting outer shell located on an outer surface position of a predetermined structure; and an opaque filler filled inside the outer shell. There,
    Forming the outer shell by laminating translucent powders;
    Filling the filling material inside the shell formed in the forming step;
    Characterized in that,
    A method of manufacturing a three-dimensional object.
PCT/JP2018/046558 2017-12-26 2018-12-18 Three-dimensional formed object and method for manufacturing same WO2019131326A1 (en)

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JP2002036374A (en) * 2000-07-28 2002-02-05 Ntt Data Corp Method for manufacturing colored molding made of curable resin, colored molding made of curable resin and apparatus for molding
WO2012132463A1 (en) * 2011-03-31 2012-10-04 国立大学法人神戸大学 Method for manufacturing three-dimensional molded model and support tool for medical treatment, medical training, research, and education
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