JP2017061067A - Three-dimensional decorative molding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional decorative molding apparatus capable of directly molding a three-dimensional molded object for decoration on a substrate with high definition in a short time.SOLUTION: A three-dimensional decorative molding apparatus 1 molds a three-dimensional decoration on a substrate as an object to be decorated by use of a photocurable resin. The three-dimensional decorative molding apparatus 1 includes a molding table 10, a first resin supply head 20, a second resin supply head 30, and a light irradiation device 40. The first resin supply head 20 is disposed above the molding table 10 and supplies a photocurable resin for a skeleton as droplets on a substrate. The second resin supply head 30 is disposed above the molding table 10 and supplies a photocurable resin for decoration on the substrate, the resin supplied as droplets smaller than the droplets discharged from the first resin supply head 20.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a three-dimensional decorative modeling apparatus that can directly apply a three-dimensional decoration to a substrate.

  Conventionally, based on the cross-sectional image data obtained by slicing the three-dimensional data of the modeling object into a plurality, the photo-curing resin is cured in a layer shape of a predetermined cross-section, and the next layer is formed to be stacked, A three-dimensional modeling apparatus for modeling a target three-dimensional modeled object is known.

  For example, Patent Document 1 discloses a so-called inkjet type three-dimensional modeling apparatus. In this three-dimensional modeling apparatus, after the photocurable resin is ejected linearly in the scanning direction from the inkjet head to the modeling stage, the inkjet head is moved in the sub-scanning direction, and light is again linearly scanned in the scanning direction. By repeating the discharge of the curable resin, one layer of the modeling material layer is formed. Thereafter, the one layer of the modeling material layer is irradiated with light to form a cured layer, and a plurality of cured layers are continuously laminated on the cured layer to form a three-dimensional structure. As described above, according to the ink jet method, the photocurable resin as the modeling material is discharged as fine droplets, and thus a high-definition modeling material layer can be formed. As a result, a high-definition three-dimensional structure can be formed.

Japanese Patent Laying-Open No. 2015-036234

  By the way, in the above cited reference 1, in order to perform higher-definition three-dimensional modeling, the frequency of the voltage applied to the inkjet head is increased, or the scanning speed of the modeling stage and the inkjet head is decreased. It is disclosed to increase the resolution in the scanning direction. Further, it has been disclosed to increase the resolution in the sub-scanning direction by increasing the nozzle resolution of the ink-jet head or by moving the ink-jet head in the sub-scanning direction to a nozzle pitch or less. Further, it is disclosed that the resolution in the height direction is increased by reducing the amount of lowering of the modeling stage or the amount of lift of the inkjet head. However, since such high resolution greatly increases the modeling time, it is required to increase the definition of the three-dimensional structure in a shorter time.

  The present invention has been made in view of such a point, and the purpose thereof is a three-dimensional decorative modeling capable of directly modeling a three-dimensional structure for decoration on a substrate in a higher definition and in a short time. Is to provide a device.

  The technology disclosed herein provides a three-dimensional decorative modeling apparatus including a modeling table, a first resin supply head, a second resin supply head, and a light irradiation device. In this three-dimensional decorative modeling apparatus, the modeling table places a base material to be decorated. The first resin supply head is provided above the modeling table and supplies the photocurable resin for the skeleton as droplets onto the substrate. The second resin supply head is provided above the modeling table, and supplies the decorative photocurable resin onto the substrate as droplets smaller than the droplets discharged from the first resin supply head. The light irradiation device irradiates light for curing at least one of the photocurable resin for the skeleton and the photocurable resin for decoration supplied to the substrate.

  According to the present invention, after the decorative body skeleton is formed on the base material using the photocurable resin for the skeleton having a larger droplet, the decorative photocurable resin having the smaller droplet is used for the decoration body. The surface morphology can be smoothed. Thereby, the precise decoration of the surface form can be applied to the base material in a shorter time.

It is a perspective view of the three-dimensional decoration modeling apparatus concerning one embodiment. It is a perspective view which shows the state which opened the front cover provided in the case of the three-dimensional decoration modeling apparatus which concerns on one Embodiment. It is the disassembled perspective view which showed typically the principal part of the three-dimensional decoration modeling apparatus which concerns on one Embodiment. It is the top view which showed typically the principal part of the three-dimensional decoration modeling apparatus which concerns on one Embodiment. It is the VV sectional view taken on the line of FIG. It is the figure which illustrated typically the arrangement of the discharge nozzle of the 2nd resin supply head. It is a block diagram of the three-dimensional decoration modeling apparatus concerning one embodiment. (A) a discharge image in a plan view of a droplet discharged by the first resin supply head, and (b) a discharge image in a plan view of a droplet discharged by the second resin supply head thereon ( c) It is a figure which shows the discharge image in a cross sectional view. (A) It is a schematic diagram which shows the image of the vertical cross-section image data of STL data, and the image of (b) smoothing cross-section image data. It is the figure which illustrated typically the arrangement of the discharge nozzle of other 2nd resin supply heads.

  Hereinafter, a three-dimensional decorative modeling apparatus according to an embodiment of the present invention will be described with reference to the drawings. It should be noted that the embodiments described herein are not intended to limit the present invention. Matters other than the matters specifically mentioned in the present embodiment and necessary for the implementation of the present invention are based on the teachings of the implementation of the invention described in this specification and the common general technical knowledge at the time of filing. It can be understood by a trader. Further, the drawings do not necessarily show actual dimensional relationships. In the drawings, members / parts having the same action are denoted by the same reference numerals, and redundant descriptions are omitted or simplified as appropriate.

  Further, in this specification, the “inkjet method” means a liquid supply method for supplying a liquid to a target position by discharging a liquid such as a photocurable resin or a photocurable resin ink as fine droplets. Means. The method for forming droplets is not particularly limited. For example, various conventionally known methods including various continuous methods such as a binary deflection method or a continuous deflection method and various on-demand methods such as a thermal method or a piezoelectric element method can be employed without any particular limitation. .

<First embodiment>
FIG. 1 is a perspective view of a three-dimensional decorative shaping apparatus 1 according to an embodiment. Reference numerals U, D, F, Rr, L, and R in the drawings indicate front, rear, left, and right in the vertical direction upper, lower, and horizontal directions, respectively. However, these are only directions for convenience of explanation, and do not limit the installation mode of the three-dimensional decorative shaping apparatus 1 at all. Symbol Y indicates the main scanning direction. A symbol X indicates a sub-scanning direction orthogonal to the main scanning direction. Reference sign Z indicates the height direction. The main scanning direction Y is a direction in which a later-described second resin supply head 30 (see FIG. 4) moves. In the present embodiment, the main scanning direction Y coincides with the left-right direction. The sub-scanning direction X is a direction orthogonal to the main scanning direction, and corresponds to the front-rear direction in this embodiment. However, the main scanning direction Y and the sub-scanning direction X are not particularly limited, and can be set as appropriate according to the form of the three-dimensional decorative shaping apparatus 1.

  The three-dimensional decorative shaping apparatus 1 performs decoration by forming a three-dimensional decorative body made of a photocurable resin on a base material to be decorated. The material and shape of the substrate are not particularly limited. For example, the shape may be a flexible sheet or a rigid plate-like flat object, or may be any three-dimensional object such as various cases, daily necessities, small electronic devices, small parts, etc. . Material is organic materials such as acrylic resin, polyethylene terephthalate (PET), acrylonitrile / butadiene / styrene (ABS) copolymer, polycarbonate (PC), thermoplastic polyurethane (TPU), paper, natural leather, cloth, etc. Materials, metal alloys such as aluminum alloys, gold, silver, copper, and stainless steel, and inorganic materials such as ceramics, ceramics, and glass can be widely used.

  First, the configuration of the three-dimensional decorative modeling apparatus 1 will be described. As shown in FIG. 1, the three-dimensional decorative modeling apparatus 1 is generally formed in a box shape. That is, the three-dimensional decorative modeling apparatus 1 includes a case 90 having a base portion 91, a left wall portion 92, a right wall portion 93, a top surface portion 94, a front surface portion 95 and a back surface portion 96, and a front cover 97. ing. The front cover 97 has two surfaces that are flush with the top surface portion 94 and the front surface portion 95. The front cover 97 is fixed to the top surface portion 94 so as to be rotatable upward about the rear end portion as an axis. As shown in FIG. 2, when the front cover 97 is opened upward, the internal space of the case 90 communicates with the external space. Then, by closing the front cover 97, the internal space and the external space of the case 90 are blocked. The front cover 97 is provided with a window 97a. The window 97a is formed of, for example, an acrylic plate that is transparent to visible light. Further, the window 97a is processed to absorb ultraviolet rays. Therefore, the user can visually recognize the internal space from the window portion 97a even when the front cover 97 is closed. In addition, by providing such a case 90 with excellent airtightness, it is possible to perform modeling without leaking light such as ultraviolet rays generated from the light irradiation device 40 described later. In addition, it is possible to prevent dust and the like from entering the internal space from the external space and stain the surface of the decorative body that has been formed, and finish the decoration beautifully.

  3 shows the three-dimensional decorative modeling apparatus in a state where the left wall portion 92, the right wall portion 93, the top surface portion 94, the front surface portion 95, the rear surface portion 96, and the front cover 97 of the three-dimensional decorative modeling device 1 are removed. 1 is shown. The base portion 91 is provided with a partition member 98 perpendicular to the left-right direction. The three-dimensional decorative modeling apparatus 1 is roughly divided into a modeling area 98A and a control area 98B by the partition member 98. The modeling area 98 </ b> A is a space that occupies the left side of the partition member 98. In the modeling area 98A, the modeling table 10, the first resin supply head 20, the second resin supply head 30, the light irradiation device 40, the surface modification device 80, and the like are disposed. The control area 98 </ b> B is a space that occupies the right side of the partition member 98. In the control area 98B, a control device 60 (see FIG. 7) that controls the operation of each part of the three-dimensional decorative shaping apparatus 1, a cleaning unit (not shown) that cleans the second resin supply head 30, which will be described later, and the like. Is arranged. The modeling area 98A and the control area 98B communicate with each other above the partition member 98. In this connected portion, the guide rail 32 extends in the left-right direction Y across the modeling area 98A and the control area 98B.

  As shown in FIG. 1, the operation panel 2 is provided on the top surface portion 94 that covers the control area 98 </ b> B of the three-dimensional decorative modeling apparatus 1. The operation panel 2 includes a display unit and an input unit. On the display unit, information on the state of the three-dimensional decorative shaping apparatus 1, operation contents, operation conditions, and the like is displayed. The input unit is used by the user to input information displayed on the display unit and instructions for the operation of each unit of the three-dimensional decorative shaping apparatus 1. For example, the user can move the modeling table 10 described later forward by pressing a predetermined button of the input unit. Further, for example, the user can start, primarily stop, or end the modeling by the three-dimensional decorative modeling apparatus 1 by pressing a predetermined button of the input unit. A signal input from the input unit of the operation panel 2 is sent to a control device 60 described later provided in the control area 98B. And based on the input signal, the control apparatus 60 controls operation | movement of each part of the three-dimensional decoration shaping apparatus 1. FIG.

  A modeling table 10 is provided near the center of the modeling area 98A. A base material is placed on the modeling table 10, and the decorative body is directly modeled on the base material on the modeling table 10. As illustrated in FIG. 3, the modeling table 10 is disposed on the moving mechanism 12 and is configured to be movable in the vertical direction Z and the front-back direction X within the modeling area 98A. Thereby, the base material on the modeling table 10 can be relatively moved in three dimensions with respect to a first resin supply head and a second resin supply head described later. The base portion 91 is provided with a slide rail 16 extending in the front-rear direction X. The modeling table 10 is moved in the front-rear direction along the slide rail 16 via the moving mechanism 12. The moving mechanism 12 is slidably engaged with the slide rail 16. The moving mechanism 12 is slid in the front-rear direction X on the slide rail 16 by the table driving device 13. The table driving device 13 is disposed on the base portion 91 in order to move the modeling table 10. Although it does not specifically limit as the table drive device 13, For example, it is a motor. Thereby, the modeling table 10 is arranged in front of or behind the guide rail 32. Further, the moving mechanism 12 includes a table lifting device 14. The table elevating device 14 is installed inside the moving mechanism 12. The table lifting device 14 can move the modeling table 10 in the vertical direction Z. The distance that the table lifting device 14 can move in the vertical direction Z can be designed to be larger than the height of the three-dimensional shape of the decorative body formed on the base material. For example, the movable distance in the vertical direction Z of the table elevating device 14 in the present embodiment is about 50 mm or more (for example, about 100 mm). Although it does not specifically limit as the table raising / lowering apparatus 14, The cylinder mechanism is employ | adopted here. Thereby, the modeling table 10 can move in the up-down direction Z. In addition, the modeling table 10 may be equipped with the fixing jig for mounting a base material stably so that attachment or detachment is possible. The fixing jig may be an adhesive member that adheres the lower surface (non-decorative surface) of the base material to the upper surface of the modeling table 10, or a fixing frame that suppresses the movement of the base material in the horizontal direction. Alternatively, it may be a holder that follows at least a part of the shape of the substrate and fixes the substrate.

  A sensor 18 is provided below the guide rail 32 and above the modeling table 10. The sensor 18 can sense the position of the object placed on the modeling table 10. When the substrate is placed on the modeling table 10, the sensor 18 senses the surface height of the substrate. Then, the table elevating device 14 adjusts the height of the modeling table 10 so that the surface height of the base material becomes a height suitable for modeling. Further, the sensor 18 senses the position of the base material on the modeling table 10. Then, the table driving device adjusts the position of the modeling table 10 in the front-rear direction so that the modeling start position of the base material is a position suitable for the start of modeling. Thereby, modeling can always be performed with high modeling accuracy.

  A cartridge housing portion 50 is provided on the left side of the modeling area 98A. A large cartridge 51 filled with a photocurable resin for a skeleton and a cartridge 52 filled with a photocurable resin for decoration are detachably accommodated in the cartridge accommodating portion 50. The photocurable resin is a liquid having viscosity in an uncured state, and is a resin having a property of being cured by irradiation with light such as ultraviolet rays. The large cartridge 51 stores an uncured resin for mainly modeling the skeleton of the decorative body formed on the base material. Since a resin for modeling the skeleton may be required in a larger amount than a photocurable resin for decoration, for example, a cartridge containing a photocurable resin for skeleton contains a photocurable resin for decoration The large cartridge 51 can be larger than the cartridge to be used. In the cartridge 52, a photocurable resin for applying a finer decoration to the skeleton of the decorative body formed of the skeleton photocurable resin is stored in an uncured state. The high-definition decoration is, for example, refinement of the surface form, coloration, and the like.

  In the present embodiment, a plurality of photocurable resins are used as decorative photocurable resins. Accordingly, the cartridge housing portion 50 is provided with a housing space for the cartridge 52 that can house, for example, six cartridges 52CL, 52W, 52C, 52M, 52Y, and 52K. The cartridge 52CL stores a colorless and transparent photocurable resin (clear ink). The cartridge 52W stores a white photocurable resin (white ink) containing a white pigment. The cartridge 52C stores a photocurable resin (cyan ink) colored in cyan including a blue pigment. The cartridge 52M stores a photocurable resin (magenta ink) colored magenta including a red pigment. The cartridge 52Y stores a photocurable resin (yellow ink) colored yellow including a yellow pigment. The cartridge 52K stores a black-colored photocurable resin (black ink) containing a black pigment.

  Of the above-described colored photo-curable resins (inks), four types of inks, cyan ink, magenta ink, yellow ink, and black ink, are color inks used to form a full-color image. Called ink. The type and number of ink for forming a full-color image are not particularly limited. For example, in addition to the four types of ink described above, six types of color inks including gold ink and silver ink may be used. The cartridge accommodating portion 50 may be provided with a cartridge 52 accommodating space corresponding to the number of inks to be used.

  The clear ink is mainly ink ejected on the surface of the process color ink. The clear ink is a transparent (typically colorless and transparent) ink and is used when it is desired to give a glossy color to the surface. White ink is used when coloring white. The white ink is generally used as, for example, a base ink because the photocurable resin for the skeleton is transparent. After ejecting white ink onto the surface of the photo-curing resin for the skeleton that forms the skeleton of the decorative body, the process color ink is discharged without affecting the color of the skeleton of the decorative body. Can be added to the decorative body. The clear ink and the white ink are called so-called special color inks.

  The three-dimensional decorative modeling apparatus 1 includes an ink supply system (not shown). The ink supply system is a system for supplying the photocurable resin stored in the large cartridge 51 and the cartridge 52 to the first resin supply head 20 and the second resin supply head 30, which will be described later. The ink supply system connects the large cartridge 51 and the first resin supply head 20 via an ink tube or the like. The ink supply system supplies the photocurable resin stored in the large cartridge 51 to the nozzles of the first resin supply head 20 through the ink tube by the supply pump. The ink supply system connects each cartridge 52 and the second resin supply head 30 via an ink tube or the like. The ink supply system supplies the stored ink to the nozzles of the second resin supply head 30 through the ink tube by the supply pump for each cartridge 52.

  The first resin supply head 20 is an ink jet type supply device that discharges and supplies a photocurable resin for a skeleton in the form of droplets. In the present embodiment, the first resin supply head 20 is an ink jet head (so-called line head) in which a plurality of resin discharge nozzles are arranged in a line on the lower surface. As shown in FIGS. 4 and 5, the first resin supply head 20 is provided above the modeling table 10 in parallel with the guide rail 32. The first resin supply head 20 is disposed behind the guide rail 32. The first resin supply head 20 is arranged so that the dimension in the left-right direction (main scanning direction) is larger than the dimension of the modeling table 10 and covers the modeling table 10 above. The first resin supply head 20 is connected to the large cartridge 51 as described above, and can discharge the photocurable resin for the skeleton stored in the large cartridge 51 toward the modeling table 10. The first resin supply head 20 can eject droplets of photocurable resin in a line at a time in the main scanning direction Y. Therefore, when the modeling table 10 moves below the first resin supply head 20 in the sub-scanning direction X, the first resin supply head 20 ejects a photocurable resin droplet onto the entire surface of the modeling table 10. be able to. Moreover, the 1st resin supply head 20 can discharge the photocurable resin for frame | skeleton only to the desired position on the modeling table 10 by controlling a discharge nozzle. For example, the photocurable resin for skeleton can be discharged only to a desired portion of the surface of the substrate placed on the modeling table 10.

  The second resin supply head 30 is an ink jet type supply device that discharges a photocurable resin for decoration into droplets and supplies it to a substrate. On the lower surface of the second resin supply head 30, there are provided discharge nozzles (not shown) corresponding to the number of cartridges 52 for storing a decorative photocurable resin. The discharge nozzle is connected to each cartridge 52 as described above, and can discharge the decorative photocurable resin (ink) stored in the cartridge 52. The second resin supply head 30 is slidably provided on the guide rail 32 via the carriage 34. The carriage 34 is engaged with the guide rail 32. In the vicinity of the right end and the left end of the guide rail 32, pulleys (not shown) are respectively provided. A servo motor 36 is connected to one pulley. An endless belt (not shown) is wound around these two pulleys. When the servo motor 36 drives the pulley, the belt travels between the two pulleys. The carriage 34 is fixed to the belt. With such a configuration, the carriage 34 moves in the main scanning direction Y along the guide rail 32 as the belt travels. The second resin supply head 30 is configured to be movable in the main scanning direction Y along the guide rail 32 by driving the servo motor 36. The second resin supply head 30 is disposed in front of the guide rail 32.

  The guide rail 32 is installed so that the second resin supply head 30 can move in the main scanning direction Y from the right end of the modeling table 10 to above the left end. The second resin supply head 30 is directed toward the base material placed on the modeling table 10 at any timing during the movement of the main scanning direction Y in the left direction Y1 and the movement in the right direction Y2. Ink is ejected. In FIG. 4 and the like, the left direction Y1 refers to the direction from right to left, and the right direction Y2 refers to the direction from left to right. In the following description, the left direction Y1 is also referred to as the going direction, and the right direction Y2 is also referred to as the returning direction. Therefore, when the modeling table 10 moves below the guide rails 32 in the sub-scanning direction X, the second resin supply head 30 discharges the decorative photocurable resin droplets onto the entire surface of the modeling table 10. Can do. Further, the second resin supply head 30 can discharge the decorative photo-curable resin only at a desired position on the modeling table 10 by controlling the discharge nozzle.

  The droplets discharged from the first resin supply head 20 can be made relatively coarse. For example, the nozzle resolution of the first resin supply head 20 in the present embodiment can be about 70 to 300 dpi, and is 150 dpi (150 nozzles per inch, pitch is 169 μm) as an example. Further, the droplets ejected by the second resin supply head 30 can be made relatively small and fine. For example, the nozzle resolution of the second resin supply head 30 in the present embodiment is higher than the resolution of the first resin supply head and can be about 200 to 2000 dpi. As an example, 1440 dpi (1440 nozzles per inch) The pitch is 17.6 μm). Further, for example, the volume of the liquid droplets ejected by the second resin supply head 30 is preferably 1/2 or less of the volume of the liquid droplets ejected from the first resin supply head 20, and is 1/4 or less. Is more preferable, and it is more preferable that it is 1/6 or less. In the present embodiment, for example, when the volume of liquid droplets discharged from the first resin supply head 20 is about 50 to 100 pL, the volume of liquid droplets discharged from the second resin supply head 30 is about 5 to 10 pL (for example, 1 / 10 volume) is preferable.

  FIG. 6 is a diagram schematically showing the arrangement of the discharge nozzles of the second resin supply head 30, and is a view of the second resin supply head 30 as viewed from below. As shown in FIG. 5, the second resin supply head 30 includes a plurality of nozzle rows 38CL, 38W, 38C, 38M, 38Y, and 38K having a plurality of discharge nozzles arranged in the sub-scanning direction X. The second resin supply head 30 has two nozzle rows 38CL for discharging clear ink, two nozzle rows 38W for discharging white ink, one nozzle row 38C for discharging cyan ink, and 1 for discharging magenta ink. One nozzle row 38M, one nozzle row 38Y that discharges yellow ink, and one nozzle row 38K that discharges black ink are provided. These nozzle rows 38CL, 38W, 38C, 38M, 38Y, 38K are arranged in the main scanning direction Y. Here, the order of the nozzle rows 38CL, 38W, 38C, 38M, 38Y, 38K arranged from one side in the main scanning direction Y to the other side (left direction Y1) in the second resin supply head 30 is 38CL, 38W, 38K, The order is 38Y, 38M, 38C, 38W, 38CL. With such an arrangement, the nozzle array in front of the process direction ink is ejected prior to the discharge of the process color ink, regardless of whether the second resin supply head 30 moves in either the direction of return Y1 or the direction of return Y2. White ink can be discharged from 38W. In addition, even when the second resin supply head 30 travels in either the going direction Y1 or the return direction Y2, after the process color ink is ejected, the clear ink is ejected from the nozzle row 38CL behind the traveling direction. Can do.

  The light irradiation device 40 irradiates light for curing to the photocurable resin for skeleton supplied to the base material. The light irradiation device 40 includes an ultraviolet light emitting diode as a light source. The ultraviolet light-emitting diode is preferable because it can emit high-luminance light with a small amount of power and does not generate heat during light emission. The light source of the light irradiation device 40 is not limited to the ultraviolet light emitting diode, and may be another light source such as a halogen lamp. In the present embodiment, as shown in FIGS. 4 and 5, a plurality of light irradiation devices 41, 42 and 43 are provided.

  A first light irradiation device 41 is provided above the modeling table 10 in parallel with the guide rail 32. The first light irradiation device 41 is a line type light irradiation device in which a plurality of ultraviolet light emitting diodes are arranged in a line. The 1st light irradiation apparatus 41 is arrange | positioned so that the dimension of the main scanning direction Y is larger than the dimension of the modeling table 10, and covers the modeling table 10 upwards. The dimension of the first light irradiation device 41 in the main scanning direction Y is substantially equal to the dimension of the first resin supply head 20 in the main scanning direction Y. The first light irradiation device 41 and the first resin supply head 20 are arranged side by side in the sub-scanning direction X. 4 and 5, the first light irradiation device 41 is disposed in front of the first resin supply head 20. The 1st light irradiation apparatus 41 is attached to the front of the 1st resin supply head 20 via the connection member which is not illustrated, for example. Accordingly, the first light irradiation device 41 can quickly irradiate the curing light to the skeleton photocurable resin discharged from the first resin supply head 20.

  The second light irradiation device 42 and the third light irradiation device 43 are provided so as to move together with the second resin supply head 30. For example, the second light irradiation device 42 and the third light irradiation device 43 are provided at positions where the second resin supply head 30 is sandwiched in the main scanning direction Y. The 2nd light irradiation apparatus 42 and the 3rd light irradiation apparatus 43 are each attached to the right side surface and the left side surface of the 2nd resin supply head 30 via the connection member which is not shown in figure, for example. Therefore, when viewed from one side in the main scanning direction Y, the second light irradiation device 42 and the third light irradiation device 43 overlap the second resin supply head 30 (see FIG. 5). The second light irradiation device 42 emits light when the second resin supply head 30 ejects ink while proceeding in the traveling direction Y1, and instantaneously irradiates the ejected ink with light. The third light irradiation device 43 emits light when the second resin supply head 30 ejects ink while moving in the return direction Y2, and instantaneously irradiates the ejected ink with light. As described above, the second light irradiation device 42 and the third light irradiation device 43 quickly irradiate the curing light to the ink (decorative photocurable resin) ejected from the second resin supply head 30. . The ink discharged from the second resin supply head 30 starts to be cured by light irradiation. Further, the ejected ink is landed on the substrate or the previously supplied photo-curable resin in a semi-cured state that is not completely cured. As a result, the process color ink and the special color ink do not intermingle with each other, and are fixed on the base material or the photocurable resin previously supplied.

  The three-dimensional decorative modeling apparatus 1 can include a surface modification apparatus 80. The surface modification device 80 is a device that improves the wettability of the surface of the base material, for example, when a base material made of a material having a low familiarity (wetting property) with the skeleton photo-curing resin is used. The wettability of the surface of the substrate can be increased by roughening the physical shape of the surface structure such as blasting or peening, but in the technique disclosed herein, the substrate is formed by chemical treatment or optical treatment. Surface modification is performed by introducing a functional group having polarity such as a hydroxyl group or a carboxyl group on the surface. As such surface modification, plasma treatment, corona treatment, plasma flame treatment or excimer lamp treatment under atmospheric pressure can be employed. Further, as the surface modification device 80, a plasma generator that generates plasma under atmospheric pressure, a corona treatment device that generates corona discharge under atmospheric pressure, a flame plasma generator that generates flame plasma under atmospheric pressure, an excimer An excimer lamp that generates light can be used. In the present embodiment, a line plasma generator capable of generating atmospheric pressure plasma in a line shape is used as the surface modification device 80. The surface modification device 80 is provided in parallel with the guide rail 32 above the modeling table 10. The surface modification device 80 is arranged so that the dimension in the main scanning direction Y is larger than the dimension of the modeling table 10 and covers the modeling table 10 above. The dimension of the surface modification device 80 in the main scanning direction Y is substantially equal to the dimension of the first resin supply head 20 in the main scanning direction Y. The surface modification device 80, the first resin supply head 20, and the first light irradiation device 41 are arranged side by side in the sub-scanning direction X. In FIG. 4, the surface modification device 80 is disposed behind the first light irradiation device 41 and the first resin supply head 20. The surface modification device 80 is attached to the rear of the first resin supply head 20 via a connecting member (not shown), for example. Therefore, the surface modification device 80 can suitably improve the wettability of the surface of the base material before the skeleton photocurable resin is discharged from the first resin supply head 20.

  FIG. 7 is a block diagram showing main elements of the three-dimensional decorative shaping apparatus 1. As shown in FIG. 7, the three-dimensional decorative modeling apparatus 1 includes a control device 60. The control device 60 is composed of a microcomputer, and is provided in the control area 98B of the three-dimensional decorative shaping apparatus 1 as described above. The control device 60 includes a table driving device 13 and a table lifting device 14, a sensor 18, a first resin supply head 20, a second resin supply head 30, and a servo motor 36 among the moving mechanisms 12 of the modeling table 10. The light irradiation devices 41, 42, and 43 and the surface modification device 80 are communicably connected. The control device 60 controls the height of the modeling table 10 and the position in the sub-scanning direction by controlling the table driving device 13 and the table lifting device 14 based on information from the sensor 18. The control device 60 controls the surface modification device 80 to improve the wettability of the surface of the base material when necessary. The control device 60 controls the discharge operation of the photocurable resin of the first resin supply head 20 by controlling the first resin supply head 20. The control device 60 controls the ink ejection operation of the second resin supply head 30 by controlling the second resin supply head 30 and the servo motor 36. The control device 60 controls the timing of irradiating the discharged photocurable resin with light by controlling the light emitting diodes of the light irradiation devices 41, 42, and 43. As will be described later, the control device 60 may include a first control device 61, a second control device 62, and a data processing unit 63.

  The three-dimensional decorative modeling apparatus 1 includes a storage unit 70 that stores information necessary for modeling. The memory | storage part 70 is not specifically limited about the data content and memory structure to memorize | store. In the present embodiment, the storage unit 70 is provided as an electronic circuit in the control area 98 </ b> B of the three-dimensional decorative shaping apparatus 1. In the present embodiment, the storage unit 70 includes a first storage unit 71 and a second storage unit 72. The 1st memory | storage part 71 memorize | stores the data regarding the decoration given with respect to a base material. More specifically, the 1st memory | storage part 71 memorize | stores the STL data of the decoration body modeled with respect to a base material. The STL data is data that expresses information related to the three-dimensional shape of the decorative object in an STL (Standard Triangulated Language) format. The STL data includes information on the color in addition to the position information of each part of the decorative body. The STL data of the decorative body also includes information on the shape of the decorated surface of the base material that is the decorated object. The STL data can be stored in the first storage unit 71 from an external storage medium (not shown) or a computer by a user operation, for example. The second storage unit 72 stores horizontal cross-sectional image data (hereinafter referred to as horizontal slice data) obtained by dividing the STL data into a plurality of horizontal planes. The horizontal slice data may be stored in the second storage unit 72 from an external storage medium (not shown) or a computer by a user operation, for example. Alternatively, the horizontal slice data may be created by a computer (not shown) in the three-dimensional decorative shaping apparatus 1 based on the STL data stored in the first storage unit 71 and stored in the second storage unit 72. As will be described later, the storage unit 70 may include a third storage unit 73, a fourth storage unit 74, and the like.

  Next, the modeling operation of the three-dimensional decorative modeling apparatus 1 according to this embodiment will be described. In this embodiment, a three-dimensional decoration is given to the surface of an arbitrary base material. For example, the user stores STL data related to the shape of the decorative body to be applied to the surface of the base material, which is the decoration object, in the first storage unit 71. The STL data stored in the first storage unit 71 is processed in the three-dimensional decorative shaping apparatus 1 and stored in the second storage unit 72 as horizontal slice data. In addition, the user lifts and opens the front cover 97 and operates the operation panel 2 to move the modeling table 10 forward. And the base material which is a to-be-decorated object is mounted on the modeling table 10. FIG. Thereafter, the user lowers the front cover 97, closes the case 90, and operates the operation panel 2 to send an instruction to start modeling to the three-dimensional decorative modeling apparatus 1. At this time, the user can send information on whether or not the surface modification process is necessary for the base material to the three-dimensional decorative shaping apparatus 1 by operating the operation panel 2, for example.

  The three-dimensional decorative modeling apparatus 1 starts modeling the decorative body on the base material based on the horizontal slice data. First, the sensor 18 confirms the position of the base material placed on the modeling table 10. The control device 60 moves the modeling table 10 in the front-rear direction and the up-down direction so that the position of the base material is appropriate with respect to the first resin supply head 20 based on the position information of the base material from the sensor 18. . Moreover, in this embodiment, the case which consists of a steel can as a base material is employ | adopted, and it sets so that surface modification may be performed. Therefore, the control device 60 controls the surface modification device 80 to perform the surface modification treatment of the base material. For example, the control device 60 operates the surface modification device 80 while the first layer of the decorative body is formed. Thereby, the plasma generated from the surface modification device 80 can be supplied to the surface of the base material to improve the wettability of the surface. Moreover, the control apparatus 60 controls so that each part of the three-dimensional decoration modeling apparatus 1 implements modeling of the 1st layer based on horizontal slice data. Each part performs modeling according to the following procedure in accordance with an instruction from the control device 60.

  The modeling of each layer is performed, for example, in the sub-scanning direction X from the front to the rear of the base material. Therefore, at the start of modeling, the modeling table 10 moves to an appropriate position slightly behind the guide rail 32 so that the front end of the base material is positioned directly below the first resin supply head 20. The modeling table 10 moves from the rear to the front as the following first layer modeling proceeds. At the time of modeling, first, (S1) the first resin supply head 20 applies the photocurable resin for the skeleton to the first row at the front end of the base material based on the information in the first row of the horizontal slice data of the first layer. Supply in line. FIG. 8A shows a planar view image of the skeleton-use photocurable resin supplied to the substrate at this time.

  Next, (S2) the modeling table 10 moves forward by one pitch. And (S3-1) 1st light irradiation apparatus 41 irradiates the light for hardening with respect to the photocurable resin for frame | skeletons of the 1st row supplied to the base material. Further, (S3-2) the first resin supply head 20 supplies the photocurable resin for the skeleton in a line shape to the second row of the base material based on the information of the second row of the horizontal slice data of the first layer. To do. Then, again (S4) the modeling table 10 moves forward by one pitch.

  (S5-1) The 1st light irradiation apparatus 41 irradiates the light for hardening with respect to the photocurable resin for frame | skeleton of the 2nd row supplied to the base material. (S5-2) The first resin supply head 20 supplies the photocurable resin for the skeleton in a line shape to the third row of the base material based on the information in the third row of the horizontal slice data of the first layer. To do. (S5-3) The second resin supply head 30 is formed on the cured first-column skeleton photocurable resin based on the information in the first row of the first slice of horizontal slice data. Of ink (a photocurable resin for decoration). At this time, the second resin supply head 30 supplies ink while moving in the direction Y1 in the main scanning direction Y. The second resin supply head 30 supplies ink while moving in the return direction Y2 in the main scanning direction Y as necessary. Further, the second resin supply head 30 supplies ink while repeatedly moving in the going direction Y1 and the returning direction Y2, as necessary. In addition, in the information in the first column of the horizontal slice data of the first layer, when the photocurable resin for the second layer skeleton is supplied on the photocurable resin for the skeleton, the second resin supply The head 30 does not supply ink onto the photocurable resin for the skeleton in the first row. In other words, the second resin supply head 30 supplies ink onto the skeleton photocurable resin exposed on the surface. The second resin supply head 30 supplies the white ink prior to the supply of the process color ink when supplying the process color ink based on the horizontal slice data of the first layer. (S5-4) The second light irradiation device 42 emits light behind the second resin supply head 30 in order to cure the supplied first row of ink. Thereby, modeling of the first row of the first layer is completed.

  Subsequently, (S4) movement of the modeling table 10 and (S5-1) curing of the photocurable resin for the skeleton, (S5-2) supply of the photocurable resin for the skeleton, (S5-3). ) Supplying the decorative photocurable resin and (S5-4) curing the decorative photocurable resin are repeated as appropriate. Thus, the first layer (two-dimensional surface) can be formed.

  Further, the second and subsequent layers can be formed in the same manner as the first layer. By modeling each layer based on the horizontal slice data of each layer, a three-dimensional decorative body can be modeled.

  FIG. 8B shows an image in plan view when a decorative photocurable resin (ink) is supplied on the skeleton photocurable resin. FIG. 8C shows an image of a cross-sectional view when a decorative photocurable resin (ink) is supplied on the skeleton photocurable resin. The decorative photocurable resin droplets supplied from the second resin supply head 30 are smaller than the skeleton photocurable resin droplets. For this reason, the gap between the droplet-shaped photocurable resins for the skeleton is filled with the droplet-shaped photocurable resin for decoration, and the surface shape of the skeleton is smoothed. Thus, a high-definition decorative body can be modeled by modeling the surface of the decorative body with fine droplets. Moreover, a high-definition color can be given to a decoration body by supplying the photocurable resin for decoration as a smaller droplet.

  As described above, according to the three-dimensional decorative modeling apparatus 1 of the present embodiment, a decorative body can be modeled on the base material with a photocurable resin for a skeleton having relatively large droplets, and in a shorter time. The skeleton of the decorative body can be formed. Moreover, a more precise decorative body can be modeled with a photocurable resin for decoration with smaller droplets. Therefore, the surface of the skeleton of the decorative body can be refined by combining these droplets. As a result, it is possible to apply a precise decoration of the surface form directly to the base material in a shorter time. In addition, it is possible to apply a precise decoration only to a portion requiring a high degree of precision, and it is possible to perform a high-quality decoration at a low cost. In addition, for example, it is possible to obtain a final product without the need to finish (smooth) a three-dimensional decorative body that has been shaped manually.

  According to this embodiment, the surface of the skeleton of the decorative body formed using the photocurable resin for a skeleton having larger droplets can be smoothed by the decorative photocurable resin having the smaller droplets. Therefore, for example, by smoothing a portion of the skeleton of the decorative body that is exposed on the surface, it is possible to efficiently model a precise decoration of the surface form. Thereby, decoration with high designability can be simply given with respect to a base material.

  According to this embodiment, a color resin is used as a decorative photocurable resin with smaller droplets. Thereby, the surface of a decoration body can be colored, for example, and the designability of a decoration body can be improved economically. Moreover, it is possible to color the decorative body in full color by using a plurality of color resins as the decorative photocurable resin. Thereby, the decoration excellent in aesthetics can be given with respect to a base material.

  According to this embodiment, the second resin supply head can easily move in the main scanning direction with respect to the modeling table by moving the carriage. Moreover, the photocurable resin for decoration is mainly supplied only to the part corresponding to the surface of the decorative body. That is, the decorative photocurable resin may be supplied at the end of the decorative body in the main scanning direction. Alternatively, the decorative photocurable resin may be supplied in a plurality of times in order to improve the design. According to this embodiment, the second resin supply head can be easily moved in the main scanning direction by the movement of the carriage. In addition, for example, it is possible to easily supply the decorative photocurable resin locally to a predetermined site.

  According to this embodiment, the first resin supply head and the light irradiation device exist above the modeling table in the main scanning direction, and supply of the photocurable resin for the skeleton in the main scanning direction to the modeling table. Can be performed in a short time at a time. Therefore, it is possible to secure time for curing relatively large droplets discharged from the first resin supply head without increasing the modeling time. The first resin supply head and the light irradiation device are arranged side by side in the sub-scanning direction. Therefore, by moving the modeling table by one pitch, the light irradiation device can irradiate the light for curing the droplets ejected in a line form from the first resin supply head. In addition, the first resin supply head can eject droplets of the next line. Thereby, modeling can be performed efficiently. Furthermore, since the modeling table is movable in the vertical direction, for example, the next hardened layer can be formed on the hardened layer by moving the hardened layer formed in a layer shape downward by one layer. Thereby, the decorative body of a three-dimensional shape can be modeled efficiently.

  According to this embodiment, the surface of the base material can be modified to a characteristic (for example, hydrophilicity) that is familiar to the resin by the surface modification device 80 such as a plasma generator. Thereby, the adhesiveness and joining strength of the surface of a base material and a decoration body can be improved.

  According to this embodiment, the plasma generator, which is an example of the surface modification device 80, the first resin supply head, and the light irradiation device are arranged in this order in the sub-scanning direction. Therefore, by moving the modeling table in the sub-scanning direction, the base material is sequentially subjected to plasma processing, supply of the photocurable resin for the skeleton, and curing of the supplied resin. Thereby, a decorative body can be modeled efficiently.

  In the said embodiment, the instruction | indication of the surface treatment of the base material by the surface modification apparatus 80 was transmitted to the three-dimensional decoration shaping apparatus 1 by operating the operation panel 2, for example. However, various instructions to the three-dimensional decorative shaping apparatus 1 are not limited to being transmitted via the operation panel 2. The three-dimensional decorative shaping apparatus 1 can be configured to be capable of bidirectional communication with an external computer (not shown) via, for example, a wired or wireless connection means (including a data communication network). Therefore, any of various instructions to the three-dimensional decorative shaping apparatus 1 can be transmitted using an external computer. For example, communication with the 3D decorative modeling apparatus 1 can be performed using a dedicated application for operating the 3D decorative modeling apparatus 1. Thereby, since the three-dimensional decorative shaping apparatus 1 can be used simply and comfortably, it is preferable.

  In the above embodiment, the second resin supply head 30 supplies the white ink prior to supplying the process color ink. The clear ink was not supplied after the process color ink was supplied. Therefore, the finish of the decorative body was finished with a matte texture with no gloss. However, the ink supply form of the second resin supply head 30 is not limited to this. For example, the second resin supply head 30 can use clear ink as a decorative photocurable resin with smaller droplets. Further, the second resin supply head 30 may supply, for example, clear ink after supplying the process color ink. Information on whether or not to supply clear ink can be included in, for example, STL data. Thus, by supplying the clear resin to the outermost surface of the decorative body, it is possible to give the decorative body gloss. Thereby, glossiness can be given to a decoration object. Therefore, for example, a high-quality texture can be given to a three-dimensional decorative body, and decoration with high added value can be implemented.

  In the said embodiment, after hardening the photocurable resin for frame | skeleton supplied to each row | line | column of each layer, the site | part exposed on the surface among the photocurable resins for skeleton | cured hardened | cured in each row | line | column of each layer each time In addition, a photocurable resin (ink) for decoration is supplied from the second resin supply head 30. However, the ink supply form of the second resin supply head 30 is not limited to this. For example, the second resin supply head 30 can supply the photocurable resin (ink) for decoration to the surface of the skeleton after all the modeling of the skeleton of the decorative body by the first resin supply head 20 is completed. it can. Further, the second resin supply head 30 can supply the photocurable resin (ink) for decoration on the skeleton of the decorative body in multiple layers with a necessary thickness. Thereby, even when a step is formed at the end of each layer, it is preferable because the step is more smoothly relaxed by supplying a photocurable resin (ink) for decoration.

  Further, when the second resin supply head 30 supplies the clear ink after supplying the process color ink, the time from the supply of the clear ink to the curing (light irradiation by the light irradiation device 40) is set to be longer. Also good. For example, the time from the supply of the clear ink by the second resin supply head 30 to the light irradiation by the light irradiation device 40 may be set to be twice or more the normal time (for example, about several seconds). This is preferable because the supplied clear ink droplets are integrated with the surrounding droplets and become familiar, and the surface of the decorative body becomes smoother.

  In the above embodiment, as shown in FIG. 6, the discharge nozzles of the second resin supply head 30 include two nozzle rows 38CL and 38W for discharging special color inks such as clear ink and white ink, cyan ink, One nozzle array 38C, 38M, 38Y, and 38K ejects process color inks such as magenta ink, yellow ink, and black ink. However, the arrangement of the discharge nozzles of the second resin supply head 30 is not limited to this. For example, as shown in FIG. 10, the second resin supply head 30 may include a plurality (for example, two) of nozzle rows 38C, 38M, 38Y, and 38K for process color ink. At this time, the process color ink nozzle rows 38C, 38M, 38Y, and 38K are moved in the main scanning direction Y from the center to the going direction Y1 and the returning direction Y1 as 38K, 38C, 38M, 38Y, 38Y, 38M, 38C, and 38K. They can be arranged in order so that the arrangement to Y2 is the same. The second resin supply head 30 can include more (for example, four) the number of nozzle rows 38W of white ink than the number of nozzle rows of one process color ink among the special color inks. Furthermore, the second resin supply head 30 can include more (for example, eight) the number of clear ink nozzle rows 38CL than the number of white ink nozzle rows 38CL among the special color inks. With such a configuration, it is possible to easily and quickly supply clear ink and white ink that are frequently used. Further, the clear ink nozzle row 38CL may include, for example, a first clear ink nozzle row 38CL1 and a second clear ink nozzle row 38CL2. The first clear ink nozzle row 38CL1 can be, for example, a nozzle row that discharges clear ink supplied to the skeleton of the decorative body, mainly for the purpose of smoothing the skeleton of the decorative body. The second clear ink nozzle row 38CL2 can be, for example, a nozzle row that discharges clear ink to be supplied to the surface of the smoothed decorative body for the purpose of imparting gloss to the decorative body. With such a configuration, the supply of the clear ink from the second resin supply head 30 can be controlled more simply. The special color ink nozzle rows 38CL (38CL1 and 38CL2) and 38W can also be arranged in order so that the arrangement of the nozzle rows is the same in the going direction Y1 and the returning direction Y2.

  The three-dimensional decorative shaping apparatus 1 according to the first embodiment of the present invention has been described above. However, the three-dimensional decorative modeling apparatus according to the present invention is not limited to the three-dimensional decorative modeling apparatus 1 according to the first embodiment, and can be implemented in various other modes. Next, the second embodiment will be briefly described. In the following description, the same components as those already described are denoted by the same reference numerals, and the description thereof is omitted.

<Second embodiment>
Hereinafter, the three-dimensional decorative modeling apparatus according to the second embodiment will be described. In 2nd embodiment, in the case of modeling of the three-dimensional decoration body by the three-dimensional decoration modeling apparatus 1, the level | step difference which may generate | occur | produce in the edge part of each layer is relieve | moderated still more smoothly. The three-dimensional decorative modeling apparatus 1 includes a third storage unit 73 and a fourth storage unit 74 as shown in the block diagram of FIG. The control device 60 includes a first control device 61, a second control device 62, and a data processing unit 63. The first control device 61, the second control device 62, and the data processing unit 63 may be configured by hardware, and are functional when a central processing unit (hereinafter referred to as a CPU) executes a computer program. It may be realized. The first control device 61, the second control device 62, and the data processing unit 63 are typically realized functionally by the CPU executing a computer program. When any of the first control device 61, the second control device 62, and the data processing unit 63 is configured by hardware, the hardware typically includes some electronic circuits in the control device 60. Is provided in the control area 98B.

  The third storage unit 73 stores vertical slice image data (hereinafter, referred to as vertical slice data) obtained by dividing the STL data stored in the first storage unit into a plurality of pieces on a vertical plane including the main scanning direction Y. The vertical slice data may be stored in the third storage unit 73 from an external storage medium (not shown) or a computer by a user operation, for example. Alternatively, the vertical slice data is created by a computer (not shown) provided in the three-dimensional decorative shaping apparatus 1 based on the STL data stored in the first storage unit 71 and stored in the third storage unit 73. Also good.

  The data processing unit 63 smoothes the contour of the vertical slice data stored in the third storage unit 73 and creates smoothed cross-sectional image data. FIG. 9A illustrates an image of vertical slice data, and FIG. 9B illustrates an image of smoothed sectional image data. In the vertical slice data of FIG. 9A, a step is formed between the end of one layer (layer) and the end of the next layer (layer) continuous to the layer. Thus, since the decorative body produced by the three-dimensional decorative modeling apparatus 1 is three-dimensionalized by laminating cross-sectional layers, a level difference (unevenness) corresponding to the thickness of the layer (layer) is inevitably formed. Can be done. Therefore, a step is also formed between one layer and the next layer that is continuous to the skeleton of the decorative body that is shaped based on the STL data. Such a three-dimensional shape error such as a step, unlike a planar shape error, is a shadow that can be perceived by the human eye at a position that is not normally seen when light is irradiated from a predetermined direction. Can be formed. For this reason, the three-dimensional structure has a unique problem that three-dimensional shape errors such as unevenness and steps are further conspicuous, unlike a printed body on a two-dimensional plane. For example, there is a drawback in that a linear streak can be seen in the number of stacked layers at the interface of the stacked cured layers. In particular, such a shape error should be avoided in the three-dimensional decorative modeling apparatus 1 that forms a three-dimensional modeled object having high decorative elements. Therefore, the data processing unit 63 smoothes the cross-sectional image data (FIG. 9 (FIG. 9 (FIG. 9)) by smoothing the vertical slice data (see FIG. 9 (a)) without cutting the cross-sectional portion. b) create). The smoothing process in the data processing unit 63 can be implemented by using, for example, various known algorithms such as path smoothing and error diffusion method, and a known CAD function.

  As described above, the fourth storage unit 74 stores the smoothed slice image data created by the data processing unit 63. The smoothed vertical slice data is not limited to being generated by the data processing unit 63, and may be stored in the fourth storage unit 74 from an external storage medium or a computer (not shown) by a user operation, for example.

  The first controller 61 controls the first resin supply head so as to supply the skeleton photocurable resin from the first resin supply head 20 based on the horizontal cross-sectional image data stored in the second storage unit 72. A 1st light irradiation apparatus irradiates the light for hardening sequentially with respect to the supplied photocurable resin for frame | skeletons. Thereby, the frame | skeleton of the target three-dimensional ornamental body can be modeled on a base material.

  The second controller 62 uses the horizontal cross-sectional image data stored in the second storage unit 72 and the smoothed slice data stored in the fourth storage unit 74 to outline the skeleton photo-curing resin on the vertical plane. To control the operation of the second resin supply head 30. That is, first, the second control device 62 moves the second resin supply head 30 in the main scanning direction Y, so that the second resin supply head 30 is placed above the end of the cured skeleton photocurable resin. Arrange. Then, the second resin supply head 30 is controlled to discharge the decorative photocurable resin droplets. The ejection amount of the decorative photocurable resin droplet is an amount corresponding to the difference between the horizontal cross-sectional image data and the smoothed slice data. That is, the second resin supply head 30 supplies the decorative photocurable resin while reciprocating the going direction Y1 and the returning direction Y2 in the main scanning direction Y a plurality of times in order to smooth one step. Thereby, the three-dimensional decorative shaping apparatus 1 can create a decorative body with higher accuracy by smoothly relaxing the steps seen at the end of each cross-sectional layer.

  According to the above embodiment, after the decoration body is formed using the photocurable resin for the skeleton having larger droplets, the surface shape in the height direction of the decoration body is formed by the photocurable resin for decoration having the smaller droplets. Can be smoothed. Thereby, the peculiar stripe-like level difference seen in a three-dimensional structure can be eased with high accuracy. Therefore, more precise decoration can be efficiently applied to the substrate.

DESCRIPTION OF SYMBOLS 1 3D decoration modeling apparatus 10 Modeling table 20 1st resin supply head 30 2nd resin supply head 40 Light irradiation apparatus 50 Cartridge accommodating part 60 Control apparatus 62 2nd memory | storage part

Claims (9)

An apparatus for modeling a three-dimensional decoration with a photocurable resin on a base material to be decorated,
A modeling table on which the substrate is placed;
A first resin supply head that is provided above the modeling table and supplies the photocurable resin for a skeleton as droplets onto the substrate;
A second resin supply head that is provided above the modeling table and supplies a decorative photocurable resin as droplets smaller than droplets discharged from the first resin supply head;
A light irradiation device for irradiating light for curing at least one of the photocurable resin for the skeleton and the photocurable resin for decoration supplied to the substrate;
A three-dimensional decorative molding apparatus. A controller for controlling the first resin supply head, the second resin supply head, and the light irradiation device;
The controller is
After causing the first resin supply head to supply the photocurable resin for the skeleton onto the base material,
The light irradiation device is cured by irradiating light to the supplied photocurable resin for the skeleton,
After the second resin supply head supplies the decorative photocurable resin onto the cured photocurable resin for the skeleton,
The light irradiation device is configured to irradiate and cure the supplied photocurable resin for decoration,
The three-dimensional decorative modeling apparatus according to claim 1.   The three-dimensional decorative modeling apparatus according to claim 1 or 2, wherein the second resin supply head is configured to be capable of discharging at least one colored color resin.   The said 2nd resin supply head is a three-dimensional decoration modeling apparatus of any one of Claims 1-3 comprised so that discharge of colorless and transparent clear resin is possible. A carriage that is above the modeling table and is movable in a main scanning direction, which is one direction along a horizontal plane;
5. The three-dimensional decorative modeling apparatus according to claim 1, wherein the second resin supply head is fixed to the carriage. The first resin supply head and the light irradiation device have a line shape with dimensions to cover the modeling table over the main scanning direction, and are arranged in parallel with each other in the sub-scanning direction,
The said modeling table is a direction along a horizontal surface, Comprising: The subscanning direction orthogonal to the said main scanning direction and the vertical direction are comprised so that a movement is possible, The structure of any one of Claims 1-5. Three-dimensional decorative modeling equipment.   The three-dimensional decorative modeling apparatus according to any one of claims 1 to 6, further comprising a surface modification device that increases wettability of the surface of the substrate. Provided with a surface modification device that improves the wettability of the surface of the substrate,
The surface modification device has a line shape with a dimension covering the modeling table in the main scanning direction, and on the side opposite to the light irradiation device side of the first resin supply head in the sub-scanning direction, The three-dimensional decorative modeling apparatus according to claim 6, which is arranged in parallel. A first storage unit for storing STL data of the decorative body;
A second storage unit for storing horizontal slice image data obtained by dividing the STL data into a plurality of horizontal planes;
A third storage unit for storing vertical slice image data obtained by dividing the STL data into a plurality of vertical planes including the main scanning direction;
A data processing unit that smoothes the contour of the vertical cross-sectional image data and creates smoothed cross-sectional image data;
A fourth storage unit for storing the created smoothed cross-sectional image data;
A first controller that controls the first resin supply head to supply the droplets of the photocurable resin for the skeleton from the first resin supply head based on the horizontal cross-sectional image data;
Based on the horizontal cross-sectional image data and the smoothed cross-sectional image data, the two-resin supply head so as to supply the droplets of the decorative photo-curable resin to the end of the supplied photo-curable resin for the skeleton A second control device for controlling
A three-dimensional decorative shaping apparatus according to claim 1, comprising:

Images