JP2016055469A - Method and device for producing stereoscopic object, and tabular body, temporally solidifying material or precursor thereof, or member for forming concave part to be used therein - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and a device for producing a stereoscopic object, in each of which the stereoscopic object can be molded simply on a horizontal plane, and to provide a tabular body, a temporally solidifying material or a precursor thereof, or a member for forming a concave part, which is used in the method and the device for producing the stereoscopic object.SOLUTION: The method for producing the stereoscopic object is used for producing the stereoscopic object 7 by using the device 6 for producing the stereoscopic object, which device includes: a molding part 1 for molding the stereoscopic object 7 by successively stacking a molding material one by one; and a molding stand 5 on which the stereoscopic object 7 is molded by the molding part 1. The method for producing the stereoscopic object comprises: a molding stand formation step of supplying the temporally solidifying material 3 of a liquid or slurry state to at least a part of the concave part of the tabular body 2, which has the concave part on at least one main flat surface and is disposed in a working area of the molding part 1, and solidifying the temporally solidifying material 3 to obtain a solidified material 4 so that the molding stand 5 including the tabular body 2 and the solidified material 4 is formed; and a molding step of successively stacking the molding material one by one on the solidified material 4 in the molding stand 5 to mold the stereoscopic object 7.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a three-dimensional object manufacturing method, a three-dimensional object manufacturing device, and a plate-like body, a solidified material with time or a precursor thereof, or a recess forming member used in the three-dimensional object manufacturing method and the three-dimensional object manufacturing device.

  A so-called 3D printer is known as an apparatus for manufacturing a three-dimensional object. As one of methods for modeling a three-dimensional solid object in such an apparatus, a layered modeling method is known. For example, Patent Document 1 discloses an apparatus for creating a three-dimensional physical object having a predetermined shape by sequentially depositing a number of layers that solidify on a base member in a desired pattern.

Japanese Patent Laid-Open No. 03-158228

  In a 3D printer using the additive manufacturing method, after forming a first layer by discharging a molten modeling material such as a resin from a printer head onto a modeling table, the second and subsequent layers are stacked on the first layer. Thus, a three-dimensional object is manufactured. At this time, if the surface of the modeling table is not horizontal, it is easy to cause problems in sequentially stacking modeling materials, and it is difficult to manufacture a desired three-dimensional object.

  Conventionally, in order to ensure the level of the surface of the modeling table, for example, a method of adjusting several screws provided at the lower part of the modeling table while checking the level with a level. Such a conventional method is complicated and it is difficult to ensure high levelness. In addition, recently, the first layer formed by automatically measuring the tilt of the surface of the modeling table in advance and changing the ejection amount of the modeling material for each position when forming the first layer accordingly A technology has been developed in which the upper surface of the second surface is a horizontal surface and the second and subsequent layers are formed on the horizontal surface. However, a three-dimensional object manufactured using such a technique tends to be formed on an inclined surface, and a problem that the three-dimensional object itself is inclined on a horizontal plane is likely to occur.

  The present invention has been made in view of such a conventional situation, and a three-dimensional object manufacturing method and a three-dimensional object manufacturing apparatus capable of easily modeling a three-dimensional object on a horizontal plane, and the three-dimensional object manufacturing method and It aims at providing the plate-shaped object used for a three-dimensional object manufacturing apparatus, a temporal solidification material or its precursor, or the member for recessed part formation.

  The inventors of the present invention have made extensive studies to solve the above problems. As a result, it was found that the above-mentioned problems can be solved by solidifying a liquid or slurry-like solidified material in a recess to form a horizontal plane, and forming a three-dimensional object on the horizontal plane, and the present invention has been completed. . Specifically, the present invention provides the following.

  A first aspect of the present invention is a three-dimensional object using a three-dimensional object manufacturing apparatus including a modeling part that sequentially stacks modeling materials to model a three-dimensional object, and a modeling table on which the three-dimensional object is modeled by the modeling part. In which at least one main plane has a recess, and at least a part of the recess of the plate-like body arranged in the work area of the modeling part is in a liquid or slurry state. A modeling including supplying the time-solidified material and solidifying the time-solidified material to obtain a solidified material, thereby forming the solidified material that forms a horizontal plane in at least a part of the concave portion of the plate-shaped material. It is a three-dimensional object manufacturing method including a modeling table forming step of forming a table and a modeling step of modeling a three-dimensional object by sequentially laminating the modeling material on the solidified material in the modeling table.

  A second aspect of the present invention is a three-dimensional object manufacturing apparatus that manufactures a three-dimensional object by sequentially stacking modeling materials, the modeling part that sequentially stacks the modeling material and models the three-dimensional object, and the above A modeling table on which the three-dimensional object is modeled by the modeling unit, and the modeling table has a recess in at least one main plane, and the recess of the plate-like body arranged in the work area of the modeling unit At least one of the plate-like body and the concave portion of the plate-like body is formed by supplying a time-solidified material in a liquid or slurry state to at least a part of the plate and solidifying the time-solidified material to obtain a solidified product. It is the solid thing manufacturing apparatus containing the said solidified material which forms a horizontal surface in a part.

The 3rd aspect of this invention is a plate-shaped body which has a recessed part in at least one main plane used for the said solid object manufacturing method or the said solid object manufacturing apparatus.
The fourth aspect of the present invention is a liquid or slurry solidified material or precursor thereof used in the three-dimensional object manufacturing method or the three-dimensional object manufacturing apparatus.
5th aspect of this invention is a member for recessed part formation used for the said solid object manufacturing method or the said solid object manufacturing apparatus, Comprising: The said plate shape so that a recessed part may be formed with the said plate-shaped object or the said modeling stand. It is the member for recessed part formation attached to a body or the said modeling stand.

  According to the present invention, a three-dimensional object manufacturing method and a three-dimensional object manufacturing device capable of easily modeling a three-dimensional object on a horizontal plane, a plate-like body used in the three-dimensional object manufacturing method and the three-dimensional object manufacturing device, and solidification with time A material or a precursor thereof, or a recess forming member can be provided.

It is a figure which shows typically the solid thing manufacturing method which concerns on embodiment of this invention. It is a figure which shows typically the usage type of the member for recessed part formation which concerns on embodiment of this invention.

<Three-dimensional object manufacturing method>
The three-dimensional object manufacturing method according to the present invention is a three-dimensional object using a three-dimensional object manufacturing apparatus including a modeling part that sequentially stacks modeling materials to model a three-dimensional object and a modeling table on which the three-dimensional object is modeled by the modeling part. A three-dimensional object manufacturing method for manufacturing an object, which has a recess on at least one main plane, and is liquid or slurry in at least a part of the recess of the plate-like body arranged in the work area of the modeling part The solidified material that forms a horizontal plane in at least a part of the concave portion of the plate-like body is obtained by supplying the time-solidified material and solidifying the time-solidified material to obtain a solidified product. A modeling table forming step of forming a modeling table and a modeling step of modeling a three-dimensional object by sequentially laminating the modeling material on the solidified material in the modeling table.
Hereinafter, the three-dimensional object manufacturing method according to the present invention will be described with reference to FIG. FIG. 1 is a diagram schematically showing a three-dimensional object manufacturing method according to an embodiment of the present invention.

In this embodiment, a modeling stand formation process is a process shown by Fig.1 (a) and FIG.1 (b).
First, in FIG. 1A, at least one main plane has a recess, and at least a part of the recess of the plate-like body 2 disposed in the work area of the modeling unit 1 is in a liquid or slurry state over time. The solidifying material 3 is supplied. The depth of the recess is not particularly limited as long as the solidified material 3 in liquid or slurry form can be supplied, and the solidified material 4 having a horizontal plane is formed by solidifying the solidified material 3 over time. -10 cm, preferably 3-7 cm. The supply amount of the time-solidified material 3 is not particularly limited, and examples thereof include an amount such that the depth of the time-solidified material 3 supplied to the recess is 1 to 5 mm, preferably about 2 to 4 mm.

  Modeling part 1 constitutes a part of solid thing manufacturing device 6 mentioned below. The modeling part 1 has a discharge port (not shown) for a modeling material at the bottom, and discharges the modeling material through this discharge port. The modeling material is not particularly limited as long as it can be used to manufacture a three-dimensional object with a 3D printer, and a conventionally known modeling material can be used. Examples of the modeling material include thermoplastic resins such as PLA (polylactic acid) resin and ABS resin. The work area of the modeling unit 1 refers to an area where the modeling unit 1 can discharge the modeling material.

  The plate-like body 2 includes a bottom surface and a side surface extending vertically upward from the end of the bottom surface with respect to the bottom surface, and has a recess formed by the bottom surface and the side surface. However, the configuration of the plate-like body 2 is not limited to the above, and for example, the cross section of the concave portion may have a curved line such as a downwardly convex arc in its contour. Further, the shape of the bottom surface of the plate-like body 2 is not particularly limited, and examples thereof include circles, ellipses, triangles, quadrangles (squares, rectangles, parallelograms, trapezoids, etc.), and polygons such as hexagons. .

  The plate-like body 2 may be formed from one type of material, or may be formed from two or more types of materials. For example, the bottom surface and the side surface may be made of different materials. In this case, examples of the bottom surface include a veneer plate and an MDF plate, and examples of the side surface include a plastic plate and a tape.

  It is preferable that the plate-like body 2 is fixedly disposed in the work area of the modeling unit 1. In the present embodiment, unlike the prior art, since it is not necessary to ensure the level of the plate-like body 2 itself, it is not necessary to adjust the level of the plate-like body with screws, and the plate-like body 2 is fixed. Can do. By fixing and arranging the plate-like body 2, especially when the plate-like body 2 becomes large, the plate-like body 2 is supplied at the time of supplying or solidifying the solidified material 3 over time, at the time of modeling the three-dimensional object 7, etc. Are less likely to be displaced, and it is difficult for problems to occur in the formation of the solidified product 4 and the modeling of the three-dimensional object 7. The means for fixing the plate-like body 2 is not particularly limited, and examples thereof include screws, tapes, and adhesives.

  The liquid or slurry aging solidification material 3 is not particularly limited as long as it is a material that is liquid or slurry at the time of preparation and solidifies over time. In achieving the object of the present invention, a material that is liquid or slurry at the time of preparation and maintains a liquid or slurry at the time of supply to at least a part of the recess, and that solidifies quickly after the supply. Preferably there is. The liquid or slurry solidified material 3 over time may be solidified under any conditions, for example, it may be solidified at room temperature, or it may be solidified under heating. From the viewpoint of the above, it is preferable that it is solidified at room temperature.

  It is preferable that the solidified material 4 of the time-solidified material 3 in a liquid or slurry state is one that can easily fix the first layer formed by the modeling material discharged from the modeling unit 1. When the solidified material 4 is easy to fix the first layer, the laminated material is less likely to be displaced at the time of the second and subsequent layers, and a desired three-dimensional object can be easily manufactured.

  It is preferable that the solidified material 4 of the liquid or slurry aging solidified material 3 has heat resistance to the modeling material discharged from the modeling unit 1. Usually, a modeling material is discharged with respect to the solid substance 4 from the modeling part 1 as a melt formed by heating. If the solidified material 4 has heat resistance with respect to the modeling material discharged from the modeling unit 1, the solidified material 4 is less likely to be deformed or modified by heat, and the horizontal plane formed from the solid material 4 is easily maintained.

  It is preferable that the solidified material 4 of the time-solidified material 3 in a liquid or slurry form is one in which the manufactured three-dimensional object is easily peeled off. When the solidified product 4 has such characteristics, when the manufactured three-dimensional product is peeled from the solidified product 4, the three-dimensional product is unlikely to receive unnecessary force and is not easily deformed.

  Examples of the solidified material 3 over time in liquid or slurry form include, for example, liquid silicone compositions such as room temperature curable liquid silicone compositions and thermosetting liquid silicone compositions; gypsum slurry; phenol resins, epoxy resins, melamine resins, urea resins. Liquid compositions containing curable resins such as polyurethane (for example, compositions containing curable resins and solvents); polyolefins (polyethylene, polypropylene, polycyclic olefins, etc.), polystyrene, AS resin, ABS resin, polyvinyl chloride , Polyacrylonitrile, (meth) acrylic resin, cellulosic resin, elastomer, aliphatic polyamide (nylon 6, nylon 6,6, nylon 12, nylon 6,12 etc.), aromatic polyamide (MXD nylon etc.), aromatic polyester Resin (polyethylene terephthalate resin, polyethylene Butylene terephthalate resin, polyethylene naphthalate resin, etc.), polycarbonate, polyacetal, polyphenylene ether resin, polyarylene sulfide (polyphenylene sulfide resin, etc.), polysulfone, polyimide, liquid crystalline polymer (liquid crystal polyester, liquid crystal polyester amide, liquid crystal polyamide, etc.), etc. A melt of a thermoplastic resin, a melt of a solid composition containing a thermoplastic resin, a liquid composition containing a thermoplastic resin (for example, a composition containing a thermoplastic resin and a solvent), and the like. A composition and a gypsum slurry are preferable, and a silicone composition is preferable. As a commercial item of a silicone type composition, Siloprene RTV-2K 1406 (made by Momentive Performance Materials Japan LLC) etc. are mentioned, for example. Examples of commercially available gypsum slurry include SL plaster (manufactured by Yoshino Gypsum Co., Ltd.).

  When the concave portion has a large area or when the solidification rate of the time-solidifying material 3 is high, the surface of the time-solidifying material 3 supplied to the concave portion may be flattened. Thereby, even in the above case, it becomes easier to obtain a horizontal plane by solidifying the solidified material 3 with time.

  Next, in FIG. 1 (b), the solidified material 4 that forms a horizontal surface in at least a part of the recesses of the plate-like body 2 and the plate-like body 2 by solidifying the solidified material 3 with time to obtain a solidified product 4. Forming table 5 is formed.

  The method for solidifying the time-solidified material 3 is not particularly limited, and can be appropriately selected according to the type of the time-solidified material 3. Examples thereof include a method of standing at room temperature and a method of standing under heating. Can be mentioned.

  In FIG. 1B or FIG. 1C, a three-dimensional object manufacturing apparatus 6 includes a modeling unit 1 that sequentially stacks modeling materials to model a three-dimensional object, and a modeling table on which the three-dimensional object is modeled by the modeling unit 1. 5. The three-dimensional object manufacturing apparatus 6 is a so-called 3D printer, and appropriately includes a frame, a data input unit, a data processing unit, and the like not shown in FIG. The configuration of the three-dimensional object manufacturing apparatus 6 is not particularly limited, and may be, for example, a delta type (parallel link) 3D printer or a three-axis type 3D printer.

  In this embodiment, a modeling process is a process shown by FIG.1 (c). In a modeling process, a modeling material is discharged from the modeling part 1 to the solidified material 4, a 1st layer is formed, a 2nd layer or later is laminated | stacked on this 1st layer, and the solid object 7 is manufactured. Since the first layer is formed on the horizontal plane of the solidified product 4, troubles are less likely to occur when forming the second layer and subsequent layers by sequentially stacking modeling materials, and the desired three-dimensional object 7 can be easily formed. Can be manufactured.

  In FIG. 1A, the liquid or slurry aging solidification material 3 is supplied to at least a part of the concave portion of the plate-like body 2. However, the used modeling table 5 is liquid or slurry aging solidification. In the case of having a recess having a depth that allows the solid material 4 to be formed by supplying the material 3, at least a part of the recess of the modeling table 5 is used instead of using the plate 2. In addition, a liquid or slurry-like solidification material 3 may be supplied. Thus, in this embodiment, the used modeling stand 5 can be reused.

<Three-dimensional object manufacturing device>
The three-dimensional object manufacturing apparatus according to the present invention is a three-dimensional object manufacturing apparatus that manufactures a three-dimensional object by sequentially stacking modeling materials, and a modeling unit that sequentially stacks the modeling materials to model the three-dimensional object; A modeling table on which the three-dimensional object is modeled by the modeling unit, and the modeling table has a recess in at least one main plane, and the plate-like body arranged in the work area of the modeling unit. Formed by supplying a solidified material in liquid or slurry form to at least a part of the recess and solidifying the solidified material over time to obtain a solidified product, and at least the recesses of the plate and the plate Part of the solidified product forming a horizontal plane. The three-dimensional object manufacturing apparatus according to the embodiment of the present invention is a three-dimensional object manufacturing apparatus 6 including a modeling unit 1 and a modeling table 5 as illustrated in FIG. 1B or FIG. Details of the modeling unit 1, the modeling table 5, and the three-dimensional object manufacturing apparatus 6 are as described above.

<Plate-like body having a recess in at least one main plane>
The plate-shaped body which has a recessed part in the at least one main plane which concerns on this invention is used for the solid object manufacturing method which concerns on this invention, or the solid object manufacturing apparatus which concerns on this invention. The details of the plate-like body having a recess in at least one main plane are as described above.

<Liquid or slurry solidification material over time or its precursor>
The liquid or slurry-like solidified material or precursor thereof according to the present invention is used for the three-dimensional object manufacturing method according to the present invention or the three-dimensional object manufacturing apparatus according to the present invention. The details of the liquid or slurry solidification material with time are as described above. The said precursor means the raw material before preparing a liquid or slurry-like solidification material with time. For example, in the case of a silicone composition, a two-pack type silicone composition in which silicone and a curing catalyst are separately packaged may be mentioned. In the case of a gypsum slurry, a gypsum powder before being dispersed in water or a powder material containing a gypsum powder and an additive may be used. In the case of a melt of a thermoplastic resin, a solid thermoplastic resin before being melted by heat is exemplified.

<Recess forming member>
The member for forming a recess according to the present invention is used for the three-dimensional object manufacturing method according to the present invention or the three-dimensional object manufacturing apparatus according to the present invention, so as to form the recess together with the plate-shaped body or the modeling table. It is attached to the plate-shaped body or the modeling table.
Hereinafter, the recess forming member according to the present invention will be described with reference to FIG. FIG. 2 is a diagram schematically showing a usage pattern of the recess forming member according to the embodiment of the present invention.

  In FIG. 2A, the recess forming member 8 is attached to the modeling table 5 and forms a recess together with the modeling table 5. By forming the recesses in this way, the recesses in the used modeling table 5 can be deepened, and the number of times that the solidified material 4 can be formed by supplying the solidified material 3 to the recesses increases. Therefore, the frequency | count of reusing the used modeling stand 5 can be increased.

  In FIG. 2 (b), the recess forming member 8 is attached to the plate-like body 2 instead of being attached to the modeling table 5, and forms a recess together with the plate-like body 2. Also in this case, similarly to the case of FIG. 2A, the number of times of reusing the used modeling table 5 can be increased.

  The material for the recess forming member according to the present invention is not particularly limited, and may be the same as or different from the material for the side surface of the plate-like body 2, and examples thereof include a plastic plate and a tape.

DESCRIPTION OF SYMBOLS 1 Modeling part 2 Plate-shaped body 3 Temporarily solidified material 4 Solidified material 5 Modeling table 6 Three-dimensional object manufacturing apparatus 7 Three-dimensional object 8 Recess formation member

Claims (7)

It is a three-dimensional object manufacturing method for manufacturing a three-dimensional object using a three-dimensional object manufacturing apparatus that includes a modeling part that sequentially stacks modeling materials to model a three-dimensional object, and a modeling table on which the three-dimensional object is modeled by the modeling part. And
Supplying at least a part of the concave portion of the plate-like body, which has a concave portion on at least one main plane, and is disposed in the work area of the modeling portion, supplies the temporal solidifying material in the form of liquid or slurry. And forming a solidified product to form a solidified table including the solidified product that forms a horizontal plane in at least a part of the concave portion of the plate-shaped body, and a solidified product,
A modeling step of modeling a three-dimensional object by sequentially laminating the modeling material on the solidified material in the modeling table,
A three-dimensional object manufacturing method including   The three-dimensional object manufacturing method according to claim 1, wherein the plate-like body is fixedly disposed in a work area of the modeling unit.   3. The three-dimensional object manufacturing according to claim 1, wherein, in the modeling table forming step, the time-solidified material is supplied to at least a part of the concave part of the plate-like body including the solidified substance in at least a part of the concave part. Method. A three-dimensional object manufacturing apparatus that manufactures a three-dimensional object by sequentially stacking modeling materials,
A modeling unit that sequentially stacks the modeling material to model the three-dimensional object;
A modeling table on which the three-dimensional object is modeled by the modeling unit;
With
The modeling table has a recess in at least one main plane, and supplies a liquid or slurry-like solidified material to at least a part of the recess of the plate-like body arranged in the work area of the modeling unit. An apparatus for producing a three-dimensional object, comprising: solidifying the time-solidified material to obtain a solidified product, and comprising the plate-like body and the solidified product forming a horizontal plane in at least a part of the concave portion of the plate-like body.   The plate-shaped body which has a recessed part in at least one main plane used for the solid object manufacturing method of any one of Claim 1 to 3, or the solid object manufacturing apparatus of Claim 4.   A liquid or slurry solidified material or precursor thereof used in the three-dimensional object manufacturing method according to any one of claims 1 to 3 or the three-dimensional object manufacturing apparatus according to claim 4.   It is a member for recessed part formation used for the solid thing manufacturing method of any one of Claim 1 to 3, or the solid thing manufacturing apparatus of Claim 4, Comprising: A recessed part is formed with the said plate-shaped object or the said modeling stand. A member for forming a recess, which is attached to the plate or the modeling table so as to form.

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