JP5418325B2 - Modeling method - Google Patents

Description

  The present invention relates to a modeling method and the like.

Conventionally, a lamination method is known as one of methods for modeling a solid (modeling method). In the laminating method, generally, a solid body can be formed by laminating each of a plurality of cross-sectional elements that define a solid external shape while sequentially forming a cross-sectional pattern.
In such a lamination method, a method called a liquid binder method is conventionally known (see, for example, Patent Document 1).

JP-T-2003-531220 gazette

In the liquid binder method described in Patent Document 1, a method of forming a cross-sectional pattern by drawing a cross-sectional element with a liquid binder on a layer of powder material spread in layers is employed. Such a liquid binder method is also called a powder lamination method.
By the way, as a powder material, for example, plaster can be considered. A shaped object obtained by solidifying a powder material such as gypsum generally has a brittle property. For this reason, a molded object obtained by solidifying a powder material such as gypsum is likely to be cracked or chipped.
That is, the conventional modeling method has a problem that it is difficult to increase the strength of the modeled object.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  [Application Example 1] A solid to be shaped is divided into a plurality of cross-sectional elements, and a powder having a property of being cured by receiving the application of the first liquid for each of the cross-sectional elements is applied to the first liquid. By layering a powder bundle having a configuration bundled with a resin having solubility, a layer forming step of forming a powder bundle layer with the powder bundle, and by applying the first liquid material to the powder bundle layer, A first drawing step of drawing the cross-sectional element as a first cross-sectional pattern with the first liquid on the powder bundle layer, and a second liquid having a property of being cured by receiving active energy, the first cross-sectional pattern A plurality of cross-sectional elements including: a second drawing step of drawing the cross-sectional element as a second cross-sectional pattern by applying to the second cross-sectional pattern; and an energy applying step of applying the active energy to the second cross-sectional pattern. Molding method comprising the shaping step, it is characterized in that sequentially carried over.

The modeling method of this application example includes a modeling process.
In the modeling process, the solid to be modeled is divided into a plurality of cross-sectional elements, and for each cross-sectional element, a layer forming process, a first drawing process, a second drawing process, and an energy application process are performed. In order.
In the layer forming step, a powder bundle layer is formed with a powder bundle by laying a powder bundle having a configuration in which the powder is bundled with a resin in a layer shape. Thereby, it is possible to make it difficult for the powder to scatter. As a result, it is possible to easily suppress adhesion to the modeling apparatus or the like, and thus it is possible to easily maintain the reliability of the modeling apparatus.
In the first drawing step, the liquid material is applied to the powder bundle layer, thereby drawing the cross-sectional element as the first cross-sectional pattern with the first liquid material on the powder bundle layer.
Here, the resin is soluble in the first liquid. Further, the powder has a property of being cured by receiving the application of the first liquid. For this reason, when the first cross-sectional pattern is drawn with the first liquid material on the powder bundle layer, the first liquid material dissolves the resin and is applied to the powder in the powder bundle overlapping the first cross-sectional pattern. Thereby, in the area | region which overlaps with a 1st cross-sectional pattern, powder hardens | cures. As a result, a first cross-sectional pattern can be formed.

In the second drawing step, the second liquid is applied to the first cross-sectional pattern so as to draw the cross-sectional element as the second cross-sectional pattern. The second liquid has a property of being cured by receiving active energy.
After the second drawing process, in the energy application process, active energy is applied to the second cross-sectional pattern. Thereby, the second cross-sectional pattern is cured. As a result, the first cross-sectional pattern can be reinforced with the second cross-sectional pattern. That is, the strength of the cross-sectional pattern based on the cross-sectional element can be easily increased.
And in this modeling method, since a layer formation process, a 1st drawing process, a 2nd drawing process, and an energy grant process are carried out sequentially over a plurality of section elements, a solid in which a plurality of section patterns overlap is formed. Can be shaped.
According to this modeling method, since the strength of the cross-sectional pattern based on the cross-sectional elements can be easily increased, it is possible to easily increase the strength of a solid in which a plurality of cross-sectional patterns overlap.

  Application Example 2 In the modeling method described above, the powder bundle has a configuration in which the powder is wrapped with the resin in the form of a film.

  In this application example, the powder bundle has a configuration in which the powder is wrapped with a film-like resin. Thereby, a powder bundle layer can be formed with the powder bundle which has the structure which wrapped powder with film-form resin.

  Application Example 3 In the modeling method described above, in the layer formation step, the powder bundle layer is formed by arranging a plurality of the powder bundles.

  In this application example, the powder bundle layer can be formed by arranging a plurality of powder bundles in the layer forming step.

  Application Example 4 In the above modeling method, the second liquid material has photocurability that is a property of being cured by being irradiated with light, and in the energy application step, the second liquid material A modeling method, wherein the liquid is irradiated with the light.

  In this application example, the second liquid material has photocurability. The photo-curing property is a property that cures when irradiated with light. In the energy application step, the second liquid material is irradiated with light. Thereby, the 2nd liquid which comprises a section element can be hardened.

  Application Example 5 In the above modeling method, the first liquid body contains water, the resin exhibits water solubility, and the powder is cured by receiving the application of water. A modeling method characterized by having a certain hydraulic property.

In this application example, the first liquid body contains water. The resin exhibits water solubility. Moreover, the powder has hydraulic properties. Hydraulic property is a property of being cured by application of water.
With the above configuration, the first cross-sectional pattern can be formed with the first liquid containing water.

  [Application Example 6] A modeling method as described above, wherein the powder is plaster.

  In this application example, the powder is gypsum. Thereby, a 1st cross-section pattern can be formed by apply | coating the 1st liquid body containing water to gypsum.

  Application Example 7 In the modeling method described above, the resin functions as a binder of the powder by being dissolved in the first liquid body.

  In this application example, the resin functions as a powder binder by being dissolved in the first liquid body, so that the powders can be easily held together. As a result, the strength of the cross-sectional pattern can be further increased, so that the strength of the modeled object can be further increased.

  Application Example 8 In the above modeling method, the second liquid material contains a pigment.

  In this application example, the second liquid material contains a pigment. Thereby, a colored cross-sectional pattern can be formed.

  Application Example 9 In the modeling method described above, in the first drawing step, the first cross-sectional pattern is formed on the powder bundle layer by discharging the first liquid material onto the powder bundle layer by an inkjet method. A modeling method characterized by drawing.

  In this application example, in the first drawing step, the first cross-section pattern can be drawn on the powder bundle layer by discharging the first liquid material onto the powder bundle layer by an inkjet method.

  Application Example 10 In the modeling method described above, in the second drawing step, the second cross-sectional pattern is formed on the powder bundle layer by discharging the second liquid material onto the powder bundle layer by an inkjet method. A modeling method characterized by drawing.

  In this application example, in the second drawing step, the second cross-sectional pattern can be drawn on the powder bundle layer by discharging the second liquid material onto the powder bundle layer by an inkjet method.

The perspective view which shows the structure of the outline of the modeling system in this embodiment. The perspective view which shows the structure of the outline of the modeling apparatus in this embodiment. The front view when the carriage in this embodiment is seen in the A viewing direction in FIG. FIG. 6 is a bottom view of the ejection head in the present embodiment. Sectional drawing in the BB line in FIG. The block diagram which shows the structure of the outline of the modeling system in this embodiment. The figure which shows the flow of the drawing process in this embodiment. The figure which shows the flow of the exposure process in this embodiment. The figure which shows the flow of the modeling method in this embodiment. The figure explaining the some cross-sectional element in this embodiment. Sectional drawing explaining the laminated body in this embodiment. The figure which shows the flow of the modeling method in this embodiment. The enlarged view of the D section in Fig.12 (a). The figure which shows the flow of the manufacturing method of the gypsum capsule in this embodiment. The figure which shows the flow of the modeling method in this embodiment. The figure which shows the flow of the modeling method in this embodiment. The figure which shows the flow of the modeling method in this embodiment.

Embodiments will be described with reference to the drawings. In addition, in each drawing, in order to make each structure the size which can be recognized, the structure and the scale of a member may differ.
The modeling system 1 of this embodiment has the computer 3 and the modeling apparatus 5 as shown in FIG.
The computer 3 performs arithmetic processing for extracting a plurality of cross-sectional elements from the shape data of the solid 7 that is a modeling target. Further, the computer 3 outputs the extracted section element data (hereinafter referred to as section data) to the modeling apparatus 5.
The modeling apparatus 5 models the solid 7 by drawing cross-sectional elements based on the cross-sectional data output from the computer 3 and sequentially stacking the drawn cross-sectional elements.

As shown in FIG. 2, which is a perspective view showing a schematic configuration, the modeling device 5 in the embodiment includes a table 9, a table transport device 11, a carriage 12, a carriage transport device 13, a carriage lifting device 15, And an exposure device 17.
The carriage 12 is provided with a head unit 14.
In the modeling apparatus 5, a desired pattern is drawn on the workpiece W by discharging the liquid material as droplets from the head unit 14 while changing the relative position of the head unit 14 and the workpiece W in plan view. can do. In the present embodiment, the modeling apparatus 5 draws a cross-sectional element on the workpiece W based on the cross-sectional data output from the computer 3 (FIG. 1).
In the figure, the Y direction indicates the moving direction of the workpiece W, and the X direction indicates a direction orthogonal to the Y direction in plan view. A direction orthogonal to the XY plane defined by the X direction and the Y direction is defined as the Z direction.

As shown in FIG. 2, the table transport device 11 includes a surface plate 21, a guide rail 23a, and a guide rail 23b.
The surface plate 21 is made of a material having a small coefficient of thermal expansion, such as stone, and is placed so as to extend along the Y direction. The guide rail 23 a and the guide rail 23 b are disposed on the upper surface 21 a of the surface plate 21. Each of the guide rail 23a and the guide rail 23b extends along the Y direction. The guide rail 23a and the guide rail 23b are arranged in a state where there is a gap in the X direction.
The table 9 is provided in a state of facing the upper surface 21a of the surface plate 21 with the guide rail 23a and the guide rail 23b interposed therebetween. The table 9 is placed on the guide rail 23 a and the guide rail 23 b in a state where it floats from the surface plate 21. The table 9 has a table surface 9a that is a surface on which the workpiece W is placed. The table surface 9a is directed to the side (upper side) opposite to the surface plate 21 side. The table 9 is guided along the Y direction by the guide rail 23a and the guide rail 23b, and is configured to be able to reciprocate on the surface plate 21 along the Y direction.

The table 9 is configured to reciprocate in the Y direction by a moving mechanism and a power source (not shown). As the moving mechanism, for example, a mechanism combining a ball screw and a ball nut, a linear guide mechanism, or the like may be employed. In the present embodiment, a table transport motor described later is employed as a power source for moving the table 9 along the Y direction. Various motors such as a stepping motor, a servo motor, and a linear motor can be adopted as the table transport motor.
The power from the table transport motor is transmitted to the table 9 through the moving mechanism. Thereby, the table 9 can reciprocate along the guide rail 23a and the guide rail 23b, ie, along the Y direction. That is, the table transport device 11 can reciprocate the workpiece W placed on the table surface 9a of the table 9 along the Y direction.
Further, the table transport device 11 has a table position detection device to be described later. The table position detection device detects the position of the table 9 in the Y direction. Based on the detection result of the table position detection device, the position of the workpiece W in the Y direction can be grasped.

The head unit 14 has a head plate 31 and an ejection head 33 as shown in FIG. 3 which is a front view when the carriage 12 is viewed in the direction A in FIG.
As shown in FIG. 4 which is a bottom view, the discharge head 33 has a nozzle surface 35. A plurality of nozzles 37 are formed on the nozzle surface 35. In FIG. 4, the nozzles 37 are exaggerated and the number of the nozzles 37 is reduced in order to easily show the nozzles 37.
In the ejection head 33, the plurality of nozzles 37 constitute twelve nozzle rows 39 arranged along the Y direction. The twelve nozzle rows 39 are arranged in a state where there is a gap in the X direction. In each nozzle row 39, the plurality of nozzles 37 are formed at a predetermined nozzle interval P along the Y direction.

In the following, when each of the 12 nozzle rows 39 is identified, the nozzle row 39a, the nozzle row 39b, the nozzle row 39c, the nozzle row 39d, the nozzle row 39e, the nozzle row 39f, the nozzle row 39g, the nozzle row 39h, The notation of nozzle row 39i, nozzle row 39j, nozzle row 39k, and nozzle row 39m is used.
In the ejection head 33, the nozzle row 39a and the nozzle row 39b are shifted from each other by a distance of P / 2 in the Y direction. The nozzle row 39c and the nozzle row 39d are also shifted from each other by a distance of P / 2 in the Y direction. Similarly, the nozzle row 39e and the nozzle row 39f are also shifted from each other by a distance of P / 2 in the Y direction, and the nozzle row 39g and the nozzle row 39h are also shifted from each other by a distance of P / 2 in the Y direction. Similarly, the nozzle row 39i and the nozzle row 39j are also shifted from each other by a distance of P / 2 in the Y direction, and the nozzle row 39k and the nozzle row 39m are also shifted from each other by a distance of P / 2 in the Y direction.

The ejection head 33 includes a nozzle plate 46, a cavity plate 47, a vibration plate 48, and a plurality of piezoelectric elements 49, as shown in FIG. doing.
The nozzle plate 46 has a nozzle surface 35. The plurality of nozzles 37 are provided on the nozzle plate 46.
The cavity plate 47 is provided on the surface opposite to the nozzle surface 35 of the nozzle plate 46. A plurality of cavities 51 are formed in the cavity plate 47. Each cavity 51 is provided corresponding to each nozzle 37 and communicates with each corresponding nozzle 37. A functional liquid 53 (liquid material) is supplied to each cavity 51 from a tank (not shown).

The diaphragm 48 is provided on the surface of the cavity plate 47 opposite to the nozzle plate 46 side. The vibration plate 48 vibrates in the Z direction (longitudinal vibration), thereby enlarging or reducing the volume in the cavity 51.
The plurality of piezoelectric elements 49 are respectively provided on the surface of the diaphragm 48 opposite to the cavity plate 47 side. Each piezoelectric element 49 is provided corresponding to each cavity 51 and faces each cavity 51 with the diaphragm 48 interposed therebetween. Each piezoelectric element 49 expands based on the drive signal. Thereby, the diaphragm 48 reduces the volume in the cavity 51. At this time, pressure is applied to the functional liquid 53 in the cavity 51. As a result, the functional liquid 53 is discharged as droplets 55 from the nozzle 37. The method of discharging the droplet 55 by the discharge head 33 is one of ink jet methods. The ink jet method is one of coating methods.

As shown in FIG. 3, the ejection head 33 having the above configuration is supported by the head plate 31 with the nozzle surface 35 protruding from the head plate 31.
As shown in FIG. 3, the carriage 12 supports a head unit 14. Here, the head unit 14 is supported by the carriage 12 with the nozzle surface 35 facing downward in the Z direction.
In the present embodiment, the longitudinal vibration type piezoelectric element 49 is adopted, but the pressurizing means for applying pressure to the functional liquid 53 is not limited to this, and for example, the lower electrode and the piezoelectric layer A flexural deformation type piezoelectric element in which an electrode and an upper electrode are laminated may be employed. Further, as the pressurizing means, a so-called electrostatic actuator that generates static electricity between the diaphragm and the electrode, deforms the diaphragm by electrostatic force, and ejects droplets from the nozzles can be employed. Furthermore, the structure which generate | occur | produces a bubble in a nozzle using a heat generating body, and gives a pressure to a functional liquid with the bubble may be employ | adopted.

In this embodiment, as the functional liquid 53, two kinds of liquid bodies that are cured by receiving active energy and liquid bodies containing water are employed. Hereinafter, the functional liquid 53 that is cured by receiving active energy is referred to as a curable functional liquid 57. Further, the functional liquid 53 composed of a liquid containing water is called an aqueous functional liquid 59.
In this embodiment, light is adopted as the active energy. That is, in this embodiment, the curable functional liquid 57 has photocurability that is a property of being cured by receiving light irradiation. Furthermore, in this embodiment, ultraviolet light is adopted as light for curing the curable functional liquid 57. The curable functional liquid 57 is insoluble in the cured state.
As the curable functional liquid 57 that is cured by receiving light irradiation, a resin material to which a photocuring agent is added can be used. As the resin material, for example, an acrylic or epoxy resin material may be employed. As the photocuring agent, for example, a radical polymerization type photopolymerization initiator or a cationic polymerization type photopolymerization initiator may be employed.
Examples of radical polymerization type photopolymerization initiators include isobutyl benzoin ether, isopropyl benzoin ether, benzoin ethyl ether, benzoin methyl ether, benzyl, hydroxycyclohexyl phenyl ketone, diethoxyacetophenone, chlorothioxanthone, and isopropylthioxanthone. .
Examples of the cationic polymerization type photopolymerization initiator include aryl sulfonium salt derivatives, allyl iodonium salt derivatives, diazonium salt derivatives, and triazine initiators.

Curability having unique functions by adding functional materials such as pigments and dyes such as pigments and surface modifying materials such as lyophilicity and liquid repellency to the curable functional liquid 57 having the above-described configuration. A functional liquid 57 can be generated.
In the curable functional liquid 57 containing pigments such as pigments and dyes, for example, cross-sectional elements drawn on the workpiece W can be expressed in color. Hereinafter, the curable functional liquid 57 containing a pigment such as a pigment or a dye is referred to as a color paint.
Further, for example, by adopting a resin material having optical transparency as the resin material as a component of the curable functional liquid 57, the functional liquid 53 having optical transparency can be configured. Hereinafter, the functional liquid 53 having light transmittance is referred to as a light-transmitting paint. The curable functional liquid 57 having such light permeability can be used as a clear ink, for example.
As the use of the clear ink, for example, a use as an overcoat layer for covering an image, a use as a base layer before forming an image, and the like can be considered. In the following, the curable functional liquid 57 applied as a base layer is referred to as a base paint.
As the base paint, not only the light-transmitting paint but also a curable functional liquid 57 obtained by adding various pigments to the light-transmitting paint can be employed.

In the present embodiment, five types of color paints having different colors are employed as the curable functional liquid 57. In the five types of color paints, colors different from each other are yellow (Y), magenta (M), cyan (C), black (K), and white (W), respectively.
In the following description, when the five types of the curable functional liquid 57 are identified for each color, the curable functional liquid 57Y, the curable functional liquid 57M, the curable functional liquid 57C, the curable functional liquid 57K, and the curable function The notation liquid 57W is used.
Examples of pigments that can be applied to color paints include azo pigments, which are a kind of organic pigments, and polycyclic pigments.
Examples of yellow (Y) pigments include azo pigments such as fast yellow and disazo yellow, and polycyclic pigments such as isoindolinone yellow.
Examples of the magenta (M) pigment include quinacridone magenta, which is a polycyclic pigment, and unsubstituted quinacridone.
Examples of the cyan (C) pigment include phthalocyanine blue which is a polycyclic pigment.
Examples of the black (K) pigment include carbon black, and examples of the white (W) pigment include titanium oxide.

In the present embodiment, since different five color paints (curable functional liquid 57) are employed, color expression in the three-dimensional object 7 can be realized.
In the ejection head 33, the 12 nozzle rows 39 (FIG. 4) described above are divided for each color of the functional liquid 53. In the present embodiment, the nozzles 37 belonging to the nozzle row 39a and the nozzle row 39b discharge the curable functional liquid 57K as the droplets 55. The nozzles 37 belonging to the nozzle row 39c and the nozzle row 39d discharge the curable functional liquid 57C as droplets 55. The nozzles 37 belonging to the nozzle row 39e and the nozzle row 39f discharge the curable functional liquid 57M as droplets 55. The nozzles 37 belonging to the nozzle row 39g and the nozzle row 39h discharge the curable functional liquid 57Y as droplets 55. The nozzles 37 belonging to the nozzle row 39i and the nozzle row 39j discharge the curable functional liquid 57W as droplets 55. The nozzles 37 belonging to the nozzle row 39k and the nozzle row 39m discharge the aqueous functional liquid 59 as droplets 55.

As shown in FIG. 2, the carriage transport device 13 includes a gantry 61 and a guide rail 63. Further, the carriage transport device 13 includes a carriage position detection device (not shown) described later and a carriage transport motor (not shown) described later.
The gantry 61 extends in the X direction and straddles the table transport device 11 in the X direction. The gantry 61 faces the table transport device 11 on the side opposite to the surface plate 21 side of the table 9. The gantry 61 is supported by a column 67a and a column 67b. The column 67a and the column 67b are provided at positions facing each other in the X direction across the surface plate 21. Each of the support columns 67a and the support columns 67b protrudes above the table 9 in the Z direction. Thereby, a gap is maintained between the gantry 61 and the table 9.

The guide rail 63 is provided on the surface plate 21 side of the gantry 61. The guide rail 63 extends along the X direction, and is provided across the width of the gantry 61 in the X direction.
The carriage 12 described above is supported by the guide rail 63. In a state where the carriage 12 is supported by the guide rail 63, the nozzle surface 35 of the discharge head 33 faces the table 9 side in the Z direction. The carriage 12 is guided along the X direction by the guide rail 63 and is supported by the guide rail 63 in a state where the carriage 12 can reciprocate in the X direction. In plan view, the nozzle surface 35 and the table surface 9a of the table 9 face each other with a gap therebetween when the carriage 12 overlaps the table 9.
The carriage position detection device detects the position of the carriage 12 in the X direction.

The carriage 12 is configured to reciprocate in the X direction by a moving mechanism and a power source (not shown). As the moving mechanism, for example, a mechanism combining a ball screw and a ball nut, a linear guide mechanism, or the like may be employed. In the present embodiment, a carriage transport motor described later is employed as a power source for moving the carriage 12 along the X direction. As the carriage conveyance motor, various motors such as a stepping motor, a servo motor, and a linear motor can be employed.
The power from the carriage transport motor is transmitted to the carriage 12 via the moving mechanism. Thus, the carriage 12 can reciprocate along the guide rail 63, that is, along the X direction. That is, the carriage conveyance device 13 can reciprocate the head unit 14 supported by the carriage 12 along the X direction.

The carriage lifting / lowering device 15 includes the above-described support 67a and support 67b. The carriage lifting / lowering device 15 includes a lifting / lowering position detection device (not shown) described later and a lifting motor (not shown) described later.
The column 67a has a guide rail 69a. The column 67b has a guide rail 69b. Each of the guide rail 69a and the guide rail 69b extends along the Z direction. The guide rail 69a and the guide rail 69b guide the gantry 61 so as to be movable up and down along the Z direction. That is, the column 67a and the column 67b support the gantry 61 in a state in which it can be moved up and down in the Z direction via the guide rail 69a and the guide rail 69b.

The gantry 61 is configured to be movable up and down in the Z direction by a lifting mechanism and a power source (not shown). As the lifting mechanism, for example, a mechanism in which a ball screw and a ball nut are combined, a linear guide mechanism, or the like can be employed. In the present embodiment, a lifting motor, which will be described later, is employed as a power source for lifting the gantry 61 along the Z direction. As the lifting motor, for example, various motors such as a stepping motor, a servo motor, and a linear motor can be employed.
The power from the lifting motor is transmitted to the gantry 61 via the lifting mechanism. Thereby, the mount frame 61 can be moved up and down along the guide rail 69a and the guide rail 69b, that is, along the Z direction. That is, the carriage lifting / lowering device 15 can lift / lower the head unit 14 supported by the carriage 12 along the Z direction.
The lift position detection device detects the position of the carriage 12 in the Z direction. The position of the ejection head 33 in the Z direction can be grasped based on the detection result of the lift position detection device.

The exposure device 17 includes a support column 81 and a light source device 83. The exposure device 17 is a device that irradiates the cross-sectional element drawn on the workpiece W with ultraviolet light. The exposure device 17 is provided on one end side of the surface plate 21 in the Y direction.
The support column 81 is provided on one end side in the Y direction of the surface plate 21 and straddles the surface plate 21 in the X direction in plan view.
The light source device 83 is provided at a position overlapping the surface plate 21 in plan view. The light source device 83 is suspended from the beam portion 81a of the column 81 downward in the Z direction. Note that a gap is maintained between the table 9 and the light source device 83 in a state where the table 9 and the light source device 83 overlap each other in plan view.

With the above configuration, the table 9 can be superimposed on the light source device 83 in plan view.
The light source device 83 has a light source (not shown). The light source emits ultraviolet light. As the light source, for example, a mercury lamp, a metal halide lamp, a xenon lamp, an excimer lamp, or the like can be employed.
Ultraviolet light from the light source of the light source device 83 is irradiated from the light source device 83 toward the surface plate 21. For this reason, the ultraviolet light from the light source device 83 can reach the workpiece W placed on the table 9 in a state where the table 9 and the light source device 83 are superimposed on each other in plan view.

As illustrated in FIG. 6, the modeling apparatus 5 includes a control unit 111 that controls the operation of each of the above-described configurations. The control unit 111 includes a CPU (Central Processing Unit) 113, a drive control unit 115, and a memory unit 117. The drive control unit 115 and the memory unit 117 are connected to the CPU 113 via the bus 119.
The modeling apparatus 5 includes a carriage transport motor 121, a table transport motor 122, a lift motor 124, a carriage position detection device 125, a table position detection device 126, and a lift position detection device 127. .
The carriage transport motor 121, the table transport motor 122, and the lifting motor 124 are connected to the control unit 111 via the input / output interface 133 and the bus 119, respectively. Further, the carriage position detection device 125, the table position detection device 126, and the lift position detection device 127 are also connected to the control unit 111 via the input / output interface 133 and the bus 119, respectively.

The carriage transport motor 121 generates power for driving the carriage 12 along the X direction. The table transport motor 122 generates power for driving the table 9. The elevating motor 124 generates power for elevating the carriage 12 along the Z direction.
The carriage position detection device 125 detects the position of the carriage 12 in the X direction. The table position detection device 126 detects the position of the table 9 in the Y direction. The lift position detection device 127 detects the position of the carriage 12 in the Z direction.
The ejection head 33 and the light source device 83 are also connected to the control unit 111 via the input / output interface 133 and the bus 119, respectively. The computer 3 is also connected to the control unit 111 via the input / output interface 133 and the bus 119.

The CPU 113 performs various arithmetic processes as a processor. The drive control unit 115 controls driving of each component. The memory unit 117 includes a RAM (Random Access Memory), a ROM (Read-Only Memory), and the like. In the memory unit 117, an area for storing program software 135 in which a procedure for controlling the operation of the modeling apparatus 5 is described, a data development unit 137 that is a region for temporarily developing various data, and the like are set. Examples of data developed in the data development unit 137 include cross-sectional data indicating cross-sectional elements to be drawn, program data such as drawing processing, and the like.
The drive control unit 115 includes a motor control unit 141, a position detection control unit 143, a discharge control unit 145, and an exposure control unit 147.

The motor control unit 141 individually controls driving of the carriage transport motor 121, driving of the table transport motor 122, and driving of the lifting motor 124 based on a command from the CPU 113.
The position detection control unit 143 individually controls the carriage position detection device 125, the table position detection device 126, and the lift position detection device 127 based on a command from the CPU 113.
The position detection control unit 143 causes the carriage position detection device 125 to detect the position of the carriage 12 in the X direction based on a command from the CPU 113 and outputs the detection result to the CPU 113.

Further, the position detection control unit 143 causes the table position detection device 126 to detect the position of the table 9 in the Y direction based on a command from the CPU 113 and outputs the detection result to the CPU 113.
Further, the position detection control unit 143 causes the lift position detection device 127 to detect the position of the carriage 12 in the Z direction based on a command from the CPU 113 and outputs the detection result to the CPU 113.
The discharge controller 145 controls the driving of the discharge head 33 based on a command from the CPU 113.
The exposure control unit 147 controls the light emission state of the light source of the light source device 83 based on a command from the CPU 113.

Here, the drawing process in the modeling apparatus 5 will be described.
In the modeling apparatus 5, when the control unit 111 (FIG. 6) acquires cross-sectional data from the computer 3 via the input / output interface 133 and the bus 119, the drawing process illustrated in FIG. 7 is performed by the CPU 113 for each cross-sectional data.
Here, in the cross-sectional data, the cross-sectional elements to be drawn are expressed in a bitmap shape. The drawing of the cross-sectional element on the workpiece W is performed with the droplet 55 being ejected from the ejection head 33 at a predetermined cycle while the ejection head 33 and the workpiece W are relatively reciprocated while the ejection head 33 faces the workpiece W. This is done by discharging.

In the drawing process, the CPU 113 first outputs a carriage conveyance command to the motor control unit 141 (FIG. 6) in step S1. At this time, the motor control unit 141 controls driving of the carriage transport motor 121 to move the carriage 12 to the forward path start position of the drawing area. Here, the drawing area is an area where the locus drawn along the Y direction by the table 9 shown in FIG. 2 and the locus drawn along the X direction by the ejection head 33 overlap. The forward path start position is a position where the forward path when the carriage 12 is reciprocated is started. In the present embodiment, the forward path start position is located on the column 67a side of the surface plate 21 in the X direction. The forward path start position is located outside the surface plate 21 in plan view.
Next, in step S2, the CPU 113 outputs a substrate transport command to the motor control unit 141 (FIG. 6). At this time, the motor control unit 141 controls the drive of the table transport motor 122 to move the workpiece W to the drawing area.

Next, in step S3, the CPU 113 outputs a carriage scanning command to the motor control unit 141 (FIG. 6). At this time, the motor control unit 141 controls the drive of the carriage transport motor 121 to start the reciprocation of the carriage 12.
Here, in the reciprocating movement of the carriage 12, the carriage 12 reciprocates between the above-described forward path start position and the backward path start position. That is, the path that returns from the forward path start position to the forward path start position and returns to the forward path start position is one round trip of the carriage 12. For this reason, in the present embodiment, the path from the forward path start position to the return path start position is the forward path of the carriage 12. On the other hand, the path from the return path start position to the forward path start position is the return path of the carriage 12.
The return path start position is a position facing the forward path start position with the surface plate 21 (FIG. 2) sandwiched in the X direction. The return path start position is located outside the surface plate 21 in plan view. For this reason, the forward path start position and the backward path start position are opposed to each other with the surface plate 21 sandwiched in the X direction in plan view.

Next, in step S4, the CPU 113 outputs a discharge command to the discharge control unit 145 (FIG. 6). At this time, the discharge controller 145 controls the drive of the discharge head 33 and discharges the droplet 55 from each nozzle 37 based on the cross-sectional data. As a result, the forward drawing is performed.
Next, in step S5, the CPU 113 determines whether or not the position of the carriage 12 has reached the return path start position. At this time, if it is determined that the position of the carriage 12 has reached the return path start position (Yes), the process proceeds to step S6. On the other hand, if it is determined that the position of the carriage 12 has not reached the return path start position (No), the process waits until the position of the carriage 12 reaches the return path start position.

In step S6, the CPU 113 outputs a discharge stop command to the discharge control unit 145 (FIG. 6). At this time, the ejection control unit 145 stops driving the ejection head 33 and stops ejection of the droplet 55 from each nozzle 37. Thereby, the drawing in the forward path is completed.
Next, in step S7, the CPU 113 outputs a line feed command to the motor control unit 141 (FIG. 6). At this time, the motor control unit 141 controls driving of the table transport motor 122 to move the work W in the Y direction (new line), and move a new area in the work W where a pattern is to be drawn to the drawing area.
Next, in step S8, the CPU 113 outputs a discharge command to the discharge control unit 145 (FIG. 6). At this time, the discharge controller 145 controls the drive of the discharge head 33 and discharges the droplet 55 from each nozzle 37 based on the cross-sectional data. As a result, drawing on the return path is performed.

Next, in step S9, the CPU 113 determines whether the position of the carriage 12 has reached the forward path start position. At this time, if it is determined that the position of the carriage 12 has reached the forward path start position (Yes), the process proceeds to step S10. On the other hand, if it is determined that the position of the carriage 12 has not reached the forward path start position (No), the process waits until the position of the carriage 12 reaches the forward path start position.
In step S10, the CPU 113 outputs a discharge stop command to the discharge control unit 145 (FIG. 6). At this time, the ejection control unit 145 stops driving the ejection head 33 and stops ejection of the droplet 55 from each nozzle 37. Thereby, drawing on the return path is completed.

Next, in step S <b> 11, the CPU 113 determines whether drawing of the cross-sectional element based on the cross-sectional data is finished. At this time, if it is determined that the drawing of the cross-sectional element is finished (Yes), the processing is finished. On the other hand, if it is determined that the drawing of the cross-sectional element is not completed (No), the process proceeds to step S12.
In step S12, the CPU 113 outputs a line feed command to the motor control unit 141 (FIG. 6), and then shifts the processing to step S4. At this time, in step S12, the motor control unit 141 controls the driving of the table transport motor 122 to move the work W in the Y direction (new line), and to draw a new area in the work W where a pattern is to be drawn. Move to.

Next, the exposure process in the modeling apparatus 5 will be described.
In the modeling apparatus 5, when the drawing process with the curable functional liquid 57 is completed, the exposure process shown in FIG. 8 is started by the CPU 113. The exposure process is performed every time the drawing process is performed with the curable functional liquid 57 based on the cross-sectional data.
In the exposure process, the CPU 113 first outputs a substrate transport command to the motor control unit 141 (FIG. 6) in step S31. At this time, the motor control unit 141 controls the drive of the table transport motor 122 to move the workpiece W to the exposure area. The exposure area is an area overlapping the exposure device 17 in plan view.

Next, in step S32, the CPU 113 outputs an exposure command to the exposure control unit 147 (FIG. 6). At this time, the exposure control unit 147 controls the driving of the light source of the exposure device 17 to turn on the light source of the exposure device 17.
Next, in step S33, the CPU 113 outputs an exposure stop command to the exposure control unit 147 (FIG. 6), and then ends the process. At this time, in step S <b> 33, the exposure control unit 147 controls the driving of the light source of the exposure apparatus 17 to turn off the light source of the exposure apparatus 17.
As described above, the cross-sectional element is exposed to ultraviolet light.

Here, the flow of the modeling method in the present embodiment will be described.
As shown in FIG. 9, the modeling method in the present embodiment includes a cross-section data generation step S51, a modeling step S52, and a cleaning step S53.
Furthermore, the modeling step S52 includes a layer forming step S521, a first drawing step S522, a second drawing step S523, and an exposure step S524.
In the cross-section data generation step S51, as described above, a plurality of cross-section data is generated from the shape data of the solid 7 that is the modeling target. In the cross section data generation step S51, the computer 3 generates cross section data.

In the modeling system 1, the computer 3 extracts a plurality of cross-sectional elements from the shape data of the solid 7 to be modeled. As shown in FIG. 10, the three-dimensional body 7 includes a plurality of cross-sectional elements 161. When a plurality of cross-sectional elements 161 are sequentially stacked, a solid 7 that is a modeling target is formed. That is, the plurality of cross-sectional elements 161 are elements that form the shape of the solid 7 that is a modeling target. In this example, an example in which the solid 7 is divided into three cross-sectional elements 161 is shown. In the following, when each of the three cross-sectional elements 161 is individually identified, the three cross-sectional elements 161 are expressed as cross-sectional elements 161 _j (j is an integer from 1 to 3). In addition, each of the cross-sectional elements 161 _j in this example has a thickness t _j .
The computer 3 generates a plurality of cross-sectional data based on the extracted plurality of cross-sectional elements 161. At this time, one section data is generated from one section element 161. Each of the plurality of cross-section data is output to the modeling apparatus 5.

In the layer forming step S521, as shown in FIG. 11, a layer 162 is formed with gypsum for each cross-sectional element 161 shown in FIG. At this time, the layer 162 is formed with a thickness corresponding to the thickness t _j of the cross-sectional element 161 _j for each cross-sectional element 161.
After the layer forming step S521, in the first drawing step S522, the cross-sectional element 161 is drawn by applying the aqueous functional liquid 59 to the gypsum layer 162 based on the cross-sectional data. In the first drawing step S <b> 522, drawing of the cross-sectional element 161 is performed based on the drawing process (FIG. 7) in the modeling apparatus 5. The cross-sectional element 161 drawn with the aqueous functional liquid 59 is referred to as a first cross-sectional pattern 166.
Here, the aqueous functional liquid 59 contains water. For this reason, the area | region which overlaps with the 1st cross-sectional pattern 166 drawn with the aqueous | water-based functional liquid 59 in the layer 162 of a gypsum hardens | cures.

After the first drawing step S522, in the second drawing step S523, the cross-sectional element 161 is drawn by applying the curable functional liquid 57 to the gypsum layer 162 based on the cross-sectional data. In 2nd drawing process S523, drawing of the cross-sectional element 161 is performed based on the drawing process in the modeling apparatus 5 (FIG. 7). The cross-sectional element 161 drawn with the curable functional liquid 57 is called a second cross-sectional pattern 168.
In the second drawing step S523, the second cross-sectional pattern 168 is drawn by applying the curable functional liquid 57 in an overlapping manner on the first cross-sectional pattern 166 drawn in the first drawing step S522 in the plaster layer 162. . That is, in the same sectional element 161, the first sectional pattern 166 and the second sectional pattern 168 overlap each other.
After the second drawing step S523, in the exposure step S524, the second sectional pattern 168 is exposed with ultraviolet light by the exposure device 17 for each drawn second sectional pattern 168. Thereby, the second cross-sectional pattern 168 is cured.

In modeling process S52, layer formation process S521, 1st drawing process S522, 2nd drawing process S523, and exposure process S524 are sequentially implemented over all the cross-sectional elements 161. FIG. That is, the layer forming step S521, the first drawing step S522, the second drawing step S523, and the exposure step S524 are repeatedly performed until the sectional data of the new sectional element 161 to be drawn is exhausted. Thereby, the laminated body 163 shown in FIG. 11 can be formed. In the stacked body 163, a plurality of cross-sectional patterns 165 are overlapped. In each cross-sectional pattern 165 _j , the first cross-sectional pattern 166 _j and the second cross-sectional pattern 168 _j described above are combined. In the laminate 163, uncured gypsum 167 is attached to the cross-sectional pattern 165.
After repeatedly performing the layer forming step S521, the first drawing step S522, the second drawing step S523, and the exposure step S524 over the plurality of cross-sectional elements 161, in the cleaning step S53, uncured gypsum adhering to the solid 7 167 is washed.
By the above, the solid 7 can be formed. The stereoscopic 7 are shaped by the method described above, since the first cross-sectional pattern 166 _j and a second cross-sectional pattern 168 _j are combined in each cross section pattern 165 _j, to easily increase the strength of the cross pattern 165 _j Can do. As a result, the strength of the solid 7 in which the plurality of cross-sectional patterns 165 overlap can be easily increased.

  In the present embodiment, the first drawing step S522 and the second drawing step S523 are realized by a drawing process in the modeling apparatus 5. In the present embodiment, in the first drawing step S522, the application step of the aqueous functional liquid 59 (drawing of the first cross-sectional pattern 166) is performed based on the drawing process (FIG. 7) in the modeling apparatus 5. Moreover, in 2nd drawing process S523, the application | coating process (drawing of the 2nd cross-sectional pattern 168) of the sclerosing | hardenable functional liquid 57 is implemented based on the drawing process (FIG. 7) in the modeling apparatus 5. FIG.

Here, the flow of modeling process S52 is demonstrated for the solid 7 shown in FIG. 10 as an example.
First, in the layer forming step S521, as shown in FIG. 12 (a), to form a layer 171 ₁ in plaster work W such as a substrate.
Here, in this embodiment, as shown in FIG. 13 which is an enlarged view of a D portion in FIG. 12A, a gypsum capsule 173 is employed as a gypsum mode. In the gypsum capsule 173, powdery gypsum 175 is bundled with a resin 177.
The resin 177 has a film-like aspect and exhibits water solubility. In this embodiment, PVA (polyvinyl alcohol) is adopted as the resin 177.
In the gypsum capsule 173, the gypsum 175 is bundled with the resin 177 by wrapping the powdery gypsum 175 with the film-like resin 177. In other words, the gypsum 175 is held by the resin 177.

As a method for manufacturing the gypsum capsule 173, for example, the following method can be adopted.
First, as shown in FIG. 14A, a PVA sheet 183a is laid between a pair of molds 181a and 181b, and then gypsum 175 is placed side by side on the sheet 183a.
Next, a PVA sheet 183b is laid between the plaster 175 and the mold 181b.
Next, as shown in FIG. 14B, the pair of molds 181a and 181b are closed. That is, the sheet 183a and the sheet 183b are sandwiched between the mold 181a and the mold 181b.
Next, the sheet 183a and the sheet 183b are heated to a temperature of about 100 to 120 ° C. through the mold 181a and the mold 181b. Thereby, the sheets 183a and 183b are pressure-bonded (heat sealed).
By the above, the gypsum capsule 173 can be manufactured. An arbitrary size can be adopted as the size of the gypsum capsule 173. When the molded article is required to be dense, it is preferable that the size of the gypsum capsule 173 is small.

In the layer forming step S521, by laying a plurality of gypsum capsule 173, to form a layer 171 ₁ shown in Figure 12 (a).
The thickness of the layer 171 ₁ is set to the thickness of t ₁ as shown in FIG. As described above, the thickness t ₁ is the thickness of the cross-sectional element 161 ₁ (FIG. 10).
Following formation of the layer 171 _1, in the first drawing step S522, as shown in FIG. 12 (b), the aqueous functional fluid 59 by ejecting droplets 55 from the ejection head 33, the water-based functional fluid in the layer 171 ₁ 59 to draw the first cross-sectional pattern 166 ₁ based on the cross sectional element 161 _1. At this time, in the layer 171 _1, water-based functional fluid 59 is applied to the gypsum capsule 173 in the region overlapping the first section pattern 166 _1. As described above, the aqueous functional liquid 59 contains water. Therefore, in the gypsum capsule 173 to which the aqueous functional liquid 59 is applied, the aqueous functional liquid 59 adheres to the gypsum 175 after the resin 177 is dissolved in the aqueous functional liquid 59. As a result, in the layer 171 ₁ , the gypsum 175 in the region overlapping the first cross-sectional pattern 166 ₁ is cured.

Following the first draw step S522, in the second drawing step S523, as shown in FIG. 12 (c), the curable functional liquid 57 by ejecting droplets 55 from the ejection head 33, curability layer 171 ₁ drawing a second cross-sectional pattern 168 ₁ based on the cross sectional element 161 by _a functional fluid 57. At this time, in the layer 171 ₁ , the curable functional liquid 57 is applied to the first cross-sectional pattern 166 ₁ that overlaps the second cross-sectional pattern 168 ₁ .
Following the second drawing step S523, in the exposure step S524, as shown in FIG. 12 (d), it is irradiated with ultraviolet light 187 into the curable functional liquid 57 constituting the second cross-sectional pattern 168 _1. At this time, the irradiation of the ultraviolet light 187 with respect to the curable functional liquid 57 is performed based on the exposure process (FIG. 8) described above. Thus, the curable functional liquid 57 constituting the second cross-sectional pattern 168 ₁ is cured. As a result, cross-sectional pattern 165 ₁ shown in FIG. 15 (a) can be formed.

Following the exposure step S524, in the layer forming step S521, as shown in FIG. 15 (a), by laying a plurality of gypsum capsule 173 on layer 171 _1, a layer 171 ₂ on layer 171 _1. At this time, the thickness of the layer 171 ₂ is set to the thickness of t ₂ . As described above, the thickness t ₂ is the thickness of the cross-sectional element 161 ₂ (FIG. 10).
Following formation of the layer 171 _2, in the first drawing step S522, as shown in FIG. 15 (b), by ejecting the water-based functional fluid 59 as droplets 55 from the ejection head 33, the water-based functional fluid in the layer 171 ₂ 59 to draw the first cross-sectional pattern 166 ₂ based on the cross sectional element 161 _2. At this time, in the layer 171 _2, aqueous functional fluid 59 is applied to the gypsum capsule 173 in the region overlapping the first section pattern 166 _2. In the gypsum capsule 173 to which the aqueous functional liquid 59 is applied, the aqueous functional liquid 59 adheres to the gypsum 175 after the resin 177 is dissolved in the aqueous functional liquid 59. As a result, in the layer 171 _2, gypsum 175 in the region overlapping the first section pattern 166 ₂ is cured.

Following the first draw step S522, in the second drawing step S523, as shown in FIG. 15 (c), by ejecting a curable functional liquid 57 from the ejection head 33 as droplets 55, curability layer 171 ₂ drawing a second cross-sectional pattern 168 ₂ based on the cross sectional element 161 ₂ at the functional fluid 57. At this time, in the layer 171 _2, the first cross-sectional pattern 166 _2-curable functional liquid 57 that overlaps the second cross-sectional pattern 168 ₂ is applied.
Following the second drawing step S523, in the exposure step S524, as shown in FIG. 16 (a), irradiated with ultraviolet light 187 into the curable functional liquid 57 constituting the second cross-sectional pattern 168 _2. At this time, the irradiation of the ultraviolet light 187 with respect to the curable functional liquid 57 is performed based on the exposure process (FIG. 8) described above. Thus, the curable functional liquid 57 constituting the second cross-sectional pattern 168 ₂ is cured. As a result, cross-sectional pattern 165 ₂ shown in FIG. 16 (b) can be formed.

Following the exposure step S524, in the layer forming step S521, as shown in FIG. 16 (b), by laying a plurality of gypsum capsule 173 on the layer 171 _2, to form a layer 171 ₃ on layer 171 _2. At this time, the thickness of the layer 171 ₃ is set to a thickness of t ₃ . As described above, the thickness t ₃ is the thickness of the cross-sectional element 161 ₃ (FIG. 10).
Subsequent to the formation of the layer 171 ₃ , in the first drawing step S 522, as shown in FIG. 16C, the aqueous functional liquid 59 is ejected as droplets 55 from the ejection head 33, thereby causing the layer 171 ₃ to eject the aqueous functional liquid. 59 to draw the first cross-sectional pattern 166 ₃ based on the cross sectional element 161 _3. At this time, in the layer 171 ₃ , the aqueous functional liquid 59 is applied to the gypsum capsule 173 in the region overlapping the first cross-sectional pattern 166 ₃ . In the gypsum capsule 173 to which the aqueous functional liquid 59 is applied, the aqueous functional liquid 59 adheres to the gypsum 175 after the resin 177 is dissolved in the aqueous functional liquid 59. As a result, in the layer 171 ₃ , the gypsum 175 in the region overlapping the first cross-sectional pattern 166 ₃ is cured.

Following the first draw step S522, in the second drawing step S523, as shown in FIG. 17 (a), the curable functional liquid 57 by ejecting droplets 55 from the ejection head 33, curability layer 171 ₃ drawing a second cross-sectional patterns 168 ₃ based on the cross sectional element 161 ₃ functional fluid 57. At this time, in the layer 171 ₃ , the curable functional liquid 57 is applied to the first cross-sectional pattern 166 ₃ overlapping the second cross-sectional pattern 168 ₃ .
Following the second drawing step S523, in the exposure step S524, as shown in FIG. 17 (b), is irradiated with ultraviolet light 187 into the curable functional liquid 57 constituting the second cross-sectional patterns 168 _3. At this time, the irradiation of the ultraviolet light 187 with respect to the curable functional liquid 57 is performed based on the exposure process (FIG. 8) described above. Thus, the curable functional liquid 57 constituting the second cross-sectional pattern 168 ₃ is cured. As a result, the cross-sectional pattern 165 ₃ shown in FIG. 17 (c) may be formed.
In the present embodiment, the layer 171 _1, layer by layer 171 ₂ and layer 171 _3, the gap amount between the respective ejection heads 33 and the layer 171 _1, a layer 171 ₂ and layer 171 ₃ is adjusted. This can be achieved by controlling the drive of the lifting motor 124 shown in FIG.
With the above, a stacked body 163 shown in FIG. 17C can be formed.

And in washing | cleaning process S53, the non-hardened gypsum capsule 173 is washed away by wash | cleaning the laminated body 163. FIG. Thereby, the solid 7 can be formed.
In the cleaning step S53, for example, a liquid such as alcohol or acetone can be employed as the cleaning agent. Resin 177 (FIG. 13) that bundles gypsum 175 has a property that it is difficult to dissolve in these cleaning agents.
In the cleaning step S53, the laminate 163 is immersed in a cleaning agent. The bonded state between the gypsum capsules 173 can be released by immersing the laminate 163 in the cleaning agent. For this reason, the gypsum capsule 173 can be washed away by immersing the laminate 163 in the cleaning agent. At this time, cleaning can be promoted by heating the cleaning agent or irradiating the laminate 163 with ultrasonic waves in the cleaning agent.

In this embodiment, the gypsum capsule 173 corresponds to the powder bundle, each of the layers 171 ₁ , 171 ₂ and 171 ₃ corresponds to the powder bundle layer, the aqueous functional liquid 59 corresponds to the first liquid, and is cured. The sexual function liquid 57 corresponds to the second liquid material.
In this embodiment, the layer 171 _1, layer by layer 171 ₂ and layer 171 _3, since the formed overlapping with the first cross-sectional pattern 166 and a second cross-sectional pattern 168, it is possible to easily increase the strength of the cross pattern 165 . As a result, the strength of the solid 7 in which the plurality of cross-sectional patterns 165 overlap can be easily increased.

In this embodiment, since the gypsum capsule 173 in which the powdery gypsum 175 is wrapped with the film-like resin 177 is employed, it is possible to make it difficult for the gypsum 175 powder to be scattered. As a result, it is possible to easily suppress the adhesion of the powder to the modeling apparatus 5 and the like, so that the reliability of the modeling apparatus 5 can be easily maintained.
In the present embodiment, in the layer forming step S521, the plurality of gypsum capsules 173 are laid to form each of the layers 171 ₁ , 171 _2, and 171 ₃ . Therefore, for example, the uncured gypsum 175 can be easily washed out as compared with the case where each of the layers 171 ₁ , 171 _2, and 171 ₃ is constituted by one gypsum capsule 173. As a result, the solid 7 can be easily modeled. Moreover, since each of the layer 171 ₁ , the layer 171 _2, and the layer 171 ₃ is formed by laying a plurality of gypsum capsules 173, a high-definition solid 7 can be formed.

Further, in the present embodiment, in the first drawing step S522, when the resin 177 dissolved in the functional liquid 53 penetrates between powders of powdery gypsum 175, it may function as a binder that holds the powders together. In this embodiment, the layers 171 ₁ , 171 ₂ and 171 ₃ are formed by laying a plurality of gypsum capsules 173, so that the resin 177 dissolved in the functional liquid 53 penetrates between the gypsum 175 powders. It's easy to do. For this reason, it is possible to further increase the strength of the shaped solid 7.
Further, by applying heat treatment to the solid 7, it is possible to easily increase the adhesion between the resin 177 that has penetrated between the powders and the powder. As a result, the strength of the shaped solid 7 can be further enhanced by heat treatment. As the heat treatment, various methods such as a method of irradiating the solid 7 with infrared rays and a method of heating the solid 7 in a furnace such as a clean oven can be adopted.

In the present embodiment, a gypsum capsule 173 in which gypsum 175 is wrapped with a film-like resin 177 is used as a mode in which gypsum 175 is bundled. However, the mode in which the gypsum 175 is bundled is not limited to the gypsum capsule 173. As a mode of binding the gypsum 175, for example, a mode in which the gypsum 175 is kneaded into the resin 177 can be adopted.
In the gypsum capsule 173, the gypsum 175 does not have to be wrapped in the film-like resin 177. If the powder is fixed to the resin 177, the gypsum 175 may protrude from the resin 177. That is, gypsum 175 only needs to be bundled with resin 177. In other words, the gypsum 175 may be held by the resin 177. Thereby, it is possible to easily suppress the powder of the gypsum 175 from being scattered.

  In the present embodiment, in each of the first drawing step S522 and the second drawing step S523, an ink jet method that is one of the application methods is employed as a method of applying the functional liquid 53. However, the coating method is not limited to the inkjet method, and a dispensing method, a printing method, or the like can also be employed. However, it is preferable to employ the ink jet method in that an arbitrary amount of the functional liquid 53 can be easily applied to an arbitrary portion of the workpiece W.

  In this embodiment, five kinds of color paints of yellow, magenta, cyan, black and white are employed. However, the color of the color paint is not limited to these five types. As the color of the color paint, for example, one kind or more of any kind of color paint such as seven kinds obtained by adding light cyan or light magenta to these five kinds can be adopted.

Moreover, in this embodiment, although light is employ | adopted as active energy for promoting hardening of the curable functional liquid 57, active energy is not limited to light, For example, heat can also be employ | adopted. In other words, as the curable functional liquid 57, a liquid having thermosetting property that is cured by being heated can be employed.
In this case, the exposure device 17 is replaced with a heating device, and the exposure step S524 is replaced with a heating step. In the heating step, the cross-sectional pattern 165 can be formed by heating the curable functional liquid 57 constituting the second cross-sectional pattern 168 with a heating device.

DESCRIPTION OF SYMBOLS 1 ... Modeling system, 5 ... Modeling apparatus, 7 ... Solid, 33 ... Discharge head, 35 ... Nozzle surface, 37 ... Nozzle, 53 ... Functional liquid, 55 ... Droplet, 57 ... Hardening functional liquid, 57Y, 57M, 57C 57K, 57W ... curable functional fluid, 59 ... aqueous functional fluid, 161 ... cross-sectional element, 163 ... laminate, 165 ... cross-sectional pattern, 166 ... first cross-sectional pattern, 168 ... second cross-sectional pattern, 171 ₁ , 171 ₂ , 171 ₃ ... layer, 173 ... gypsum capsule, 175 ... gypsum, 177 ... resin, 181a, 181b ... mold, 183a, 183b ... sheet, 187 ... ultraviolet light.

Claims (10)

The solid to be shaped is divided into a plurality of cross-sectional elements, and for each cross-sectional element,
A powder bundle having a configuration in which a powder having a property of being cured upon application of the first liquid is bundled with a resin that is soluble in the first liquid is laid in layers, whereby the powder bundle is powdered with the powder bundle. A layer forming step of forming a layer;
A first drawing step of drawing the cross-sectional element as a first cross-sectional pattern with the first liquid on the powder bundle layer by applying the first liquid to the powder bundle layer;
A second drawing step of drawing the cross-sectional element as a second cross-sectional pattern by applying a second liquid material having a property of being cured by receiving active energy so as to overlap the first cross-sectional pattern;
An energy application step of applying the active energy to the second cross-sectional pattern;
Including a modeling step of sequentially performing the plurality of cross-sectional elements.
A modeling method characterized by this. The powder bundle has a configuration in which the powder is wrapped with the film-like resin.
The modeling method according to claim 1, wherein: In the layer formation step, the powder bundle layer is formed by arranging a plurality of the powder bundles.
The modeling method according to claim 1 or 2, characterized in that. The second liquid material has photocurability, which is a property of being cured by receiving light irradiation,
In the energy application step, the second liquid is irradiated with the light.
The shaping | molding method as described in any one of Claims 1 thru | or 3 characterized by the above-mentioned. The first liquid contains water,
The resin exhibits water solubility,
The powder has hydraulic properties that are properties of being cured upon application of the water,
The modeling method according to any one of claims 1 to 4, wherein: The powder is gypsum,
The modeling method according to claim 5, wherein: The resin functions as a binder of the powder by dissolving in the first liquid.
The modeling method according to any one of claims 1 to 6, wherein: The second liquid contains a pigment,
The modeling method according to claim 1, wherein: In the first drawing step, the first liquid pattern is drawn onto the powder bundle layer by an inkjet method to draw the first cross-sectional pattern on the powder bundle layer.
The modeling method according to any one of claims 1 to 8, wherein: In the second drawing step, the second cross-sectional pattern is drawn on the powder bundle layer by discharging the second liquid material onto the powder bundle layer by an inkjet method.
The modeling method according to any one of claims 1 to 9, wherein

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