JP2016097626A - Three-dimensional molding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional molding apparatus that can mold a three-dimensional molded object while avoiding a whitened portion in a tank made of a resin.SOLUTION: A three-dimensional molding apparatus 1 includes: a molding apparatus main body including a tank that is made of a resin material and houses a photocurable resin, and an optical device that includes at least a light source to emit light and irradiates a photocurable resin housed in the tank with the light from the light source; and a control device 16 for controlling the optical device. The control device 16 includes: a specifying unit 52 that specifies a scheduled region for molding where a first three-dimensional molded object is to be molded in the tank; and a light irradiation unit 60 to control the optical device in such a manner that prior to successively stacking resin layers having a cross-sectional shape of the first three-dimensional molded object by curing the photocurable resin, the optical device varies the light from the light source into light at a wavelength where the photocurable resin is not cured, and displays the specified scheduled region for molding by the varied light in the tank.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a three-dimensional modeling apparatus.

  2. Description of the Related Art Conventionally, there is known a three-dimensional modeling apparatus that models a three-dimensional modeled object by irradiating light to a liquid photocurable resin accommodated in a tank and curing the photocurable resin.

  This type of three-dimensional modeling apparatus prepares a three-dimensional structure by preparing a cross-sectional shape of a three-dimensional structure, curing a photocurable resin, and sequentially laminating resin layers having shapes corresponding to the cross-sectional shape. To do. For example, as shown in Patent Document 1, the three-dimensional modeling apparatus is placed on a table in which an opening is formed, a resin tank placed on the table and containing a photocurable resin, and the tank. And a vertically movable holder. An optical device including a light source that irradiates light, a mirror, and the like is disposed below the table. The light emitted from the light source is reflected by the mirror and irradiated to the photocurable resin in the tank through the opening of the table. Of the photocurable resin stored in the tank, the portion irradiated with light is cured.

  By controlling the light irradiation position, the position of the resin to be cured can be appropriately changed, and a desired cross-sectional shape can be formed in the cured resin layer. By sequentially raising the holder, a desired cross-sectional shape is continuously formed downward. In this way, a desired three-dimensional structure is formed.

JP 2003-39564 A

  By the way, when modeling a three-dimensional structure using the same resin tank over a long period of time, the portion irradiated with light in the tank may become cloudy white (hereinafter, this is referred to as “white”). ")". When irradiating light to the whitened tank and trying to cure the photocurable resin in the tank, a part of the light is blocked by the whitened part of the tank, and the photocurable property near the whitened part of the tank The resin may not cure properly. Thereby, desired cross-sectional shape cannot be formed and there exists a possibility that the quality of a molded article may fall.

  This invention is made | formed in view of this point, The objective is to provide the three-dimensional modeling apparatus which can model a three-dimensional modeling thing avoiding the whitened part among resin-made tanks. It is.

  The three-dimensional modeling apparatus according to the present invention prepares the cross-sectional shape of the three-dimensional modeled object, forms the three-dimensional modeled object by sequentially curing the photocurable resin and sequentially laminating the resin layers having the cross-sectional shape. It is a three-dimensional modeling apparatus, and is provided with at least a tank that is molded of a resin material and contains the photocurable resin, and a light source that emits light, and the photocurable resin in which light from the light source is stored in the tank An optical device that irradiates the optical device, and a control device that controls the optical device, and the control device is a modeling plan in which the first three-dimensional object is modeled in the tank Before the photocuring resin hardens the photocurable resin and sequentially laminates the cross-sectional resin layers of the first three-dimensional structure, the photocurable resin emits light from the light source. Change to light with a wavelength that does not cure, Includes a light irradiation unit for controlling the optical device so as to display on the tank constant is shaped scheduled regions by the modified light.

  According to the three-dimensional modeling apparatus according to the present invention, the light irradiation unit changes the light from the light source to light having a wavelength at which the photocurable resin does not cure before modeling the first three-dimensional modeled object. And an optical apparatus displays a modeling plan area | region on a tank with the changed light. As a result, even when the whitened portion exists in the tank, the operator can determine whether or not the whitened portion and the modeling planned region overlap. When the whitened part and the modeling planned area overlap, the operator can change the modeling planned area to a part that is not whitened in the tank. As a result, it is possible to model the first three-dimensional structure excellent in quality while avoiding the whitened portion of the resin tank.

  According to one aspect of the present invention, the control device includes a dividing unit that divides a region irradiated with light from the light source into a plurality of blocks in the tank, and the modeling of the first three-dimensional structure. A first counting unit that counts the number of times the light of the light source has been irradiated for each of the blocks divided by the dividing unit in the modeling of the second three-dimensional modeled object that has been shaped before; The plurality of blocks include a first block and a second block that has been irradiated with light from the light source, and the number of times of irradiation is less than that of the first block, and the light irradiation unit includes the photocurable resin. The optical device emits light having a luminance corresponding to the number of times of irradiation counted by the first counter before the resin layer having the cross-sectional shape of the first three-dimensional structure is sequentially laminated. When displaying on the block, from the light source The optical is changed so that light is light having a wavelength at which the photocurable resin does not cure and has a predetermined luminance, and the first block is irradiated with the changed first light. Before the apparatus is controlled and the photocurable resin is cured and the cross-sectional resin layers of the first three-dimensional structure are sequentially laminated, the number of irradiations counted by the first counting unit When the optical device displays light having a corresponding luminance on the second block, the light from the light source is light having a wavelength at which the photocurable resin is not cured, and is different from the luminance of the first light. The optical device is controlled to irradiate the second block with the changed second light.

  According to the above aspect, the worker has irradiated the light irradiated during the modeling of the second three-dimensional structure in each divided block before starting the modeling of the first three-dimensional structure. The number of times can be grasped by the difference in the luminance of light. Thereby, even if it is a case where the whitening of a tank cannot be recognized visually, the part whitened with the brightness | luminance of light can be recognized after completion | finish of modeling of a 2nd three-dimensional structure. As a result, when the whitened part and the modeling plan area | region of a 1st three-dimensional structure overlap, the operator can change a modeling plan area | region to the part which is not whitening among tanks.

  According to an aspect of the present invention, the control device models the first three-dimensional structure for each of the blocks divided by the dividing unit before starting the modeling of the first three-dimensional structure. A second counting unit that counts the number of times of irradiation with which the light from the light source is irradiated, and the plurality of blocks have a third block and the number of times of irradiation with which the light from the light source is irradiated is the third. The light irradiation unit cures the photocurable resin and sequentially laminates the resin layers having a cross-sectional shape of the first three-dimensional structure before the second block. When the optical device displays light with a luminance corresponding to the number of times of irradiation counted by the counting unit on the third block, the light from the light source is light having a wavelength at which the photocurable resin does not cure. Change to third light with a predetermined brightness Then, the optical device is controlled to irradiate the third block with the changed third light, and the photocurable resin is cured to obtain a cross-sectional shape of the first three-dimensional structure. When the optical device displays light having a luminance corresponding to the scheduled number of irradiations counted by the second counting unit on the fourth block before sequentially laminating the resin layers, the light from the light source is photocured. The light is changed to the fourth light having a wavelength different from that of the third light, which is light having a wavelength at which the resin does not cure, and the fourth block is irradiated with the changed fourth light. Control the optical device.

  According to the said aspect, the light irradiated to a 1st and 2nd block and the light irradiated to a 3rd and 4th block may be combined. Thereby, when modeling a 1st three-dimensional structure from now on, the part whitened in the middle of modeling among tanks can be recognized based on the difference in the brightness | luminance of light. As a result, when the part that is whitened in the middle of the modeling of the first three-dimensional modeled object and the planned modeling area overlap in the tank, the worker models the part that is not whitened in the middle of the modeling in the tank. The planned area can be changed.

  According to an aspect of the present invention, the control device includes a setting unit that sets the specified planned shaping area in a predetermined position of the tank, and the setting unit is counted by the first counting unit. The shaping planned area is set in a block whose number of irradiations is less than a predetermined value.

  According to the above aspect, for example, when the tank is whitened when the number of times of irradiation counted by the first counting unit is a predetermined value, the setting unit does not overlap the whitened portion and the modeling planned region. The modeling planned area is automatically set to a block that is not whitened. Thereby, the 1st three-dimensional structure excellent in quality can be modeled.

  According to an aspect of the present invention, the control device includes a setting unit that sets the specified planned shaping area in a predetermined position of the tank, and the setting unit is counted by the first counting unit. The modeling planned area is set in a block in which the total number of times of irradiation and the scheduled number of irradiations counted by the second counter is less than a predetermined value.

  According to the said aspect, for example, even if it is a case where whitening has not occurred in a certain block before modeling the first three-dimensional modeled object, the number of times of irradiation and the second counted by the first counting unit. When the total number of irradiation times counted by the counting unit is equal to or greater than a predetermined value, the block is predicted to be whitened during the modeling of the first three-dimensional structure. For this reason, the setting unit is predicted to be whitened during the modeling of the first three-dimensional modeled object in order to prevent the quality of the modeled product from being deteriorated due to the whitening of the block during the modeling process. The modeling planned area is automatically set so that the part and the modeling planned area do not overlap. Thereby, the 1st three-dimensional structure excellent in quality can be modeled.

  According to an aspect of the present invention, the control device includes a notifying unit that notifies the replacement of the tank, and the notifying unit is configured to set the first counting unit when the setting unit sets the planned shaping area. In the case where it is inevitable that the block to be shaped with the irradiation count counted by the above-mentioned predetermined value and the planned shaping area overlap even if the shaping planned area is moved in the tank, or the first counting When the total number of times of irradiation counted by the unit and the planned number of irradiations counted by the second counting unit overlaps the block to be shaped and the modeling planned region, the modeling planned region is defined as the tank. If it is unavoidable even if it is moved in the process, the replacement of the tank is notified before the modeling of the first three-dimensional model is started.

  According to the said aspect, when whitening progresses over the whole tank and a 1st three-dimensional molded item cannot be modeled avoiding the whitened block, it is 1st with respect to an operator. Before starting the modeling of the three-dimensional model, it is possible to prompt the exchange of the tank. Accordingly, it is possible to prevent the first three-dimensional structure from being formed using the whitened tank.

  The three-dimensional modeling apparatus according to the present invention prepares the cross-sectional shape of the three-dimensional modeled object, forms the three-dimensional modeled object by sequentially curing the photocurable resin and sequentially laminating the resin layers having the cross-sectional shape. It is a three-dimensional modeling apparatus, and is provided with at least a tank that is molded of a resin material and contains the photocurable resin, and a light source that emits light, and the photocurable resin in which light from the light source is stored in the tank An optical device that irradiates the optical device, and a control device that controls the optical device, and the control device is a modeling plan in which the first three-dimensional object is modeled in the tank A specifying unit for specifying a region, a dividing unit for dividing a region irradiated with light of the light source in the tank into a plurality of blocks, and a first modeled before modeling of the first three-dimensional modeled object. 2 in the modeling of a three-dimensional structure, A first counter that counts the number of times the light from the light source has been irradiated for each of the blocks divided by the split, and a cross section of the first three-dimensional structure by curing the photocurable resin. An output unit that outputs the specified modeling planned region and outputs the number of irradiations counted by the first counting unit for each block before sequentially laminating the resin layers having shapes; .

  According to the three-dimensional modeling apparatus according to the present invention, before modeling the first three-dimensional modeled object, the output unit outputs the modeling target area, and the modeling of the second three-dimensional modeled object uses the light source. The number of times of irradiation with light is output for each block. The operator can determine whether the block is whitened based on the number of times the light from the light source has been irradiated in the modeling of the second three-dimensional structure. Moreover, the operator can judge whether the whitened part and the modeling plan area | region overlap after completion | finish of modeling of a 2nd three-dimensional molded item. When the whitened part and the modeling planned area overlap, the operator can change the modeling planned area to a part that is not whitened in the tank. As a result, it is possible to model the first three-dimensional structure excellent in quality while avoiding the whitened portion of the resin tank.

  According to an aspect of the present invention, the output unit outputs a first color to a block in which the number of irradiations counted by the first counting unit is a predetermined value or more among the plurality of blocks. A second color different from the first color is output to a block in which the number of irradiations counted by the first counter is less than a predetermined value.

  According to the above aspect, for example, when the tank is whitened when the number of irradiations counted by the first counting unit is a predetermined value, the operator whitens the block by checking the first color. Can be easily recognized. Thereby, even if it is a case where an operator cannot recognize the whitening of a tank visually, does the whitened part and modeling shaping area overlap after completion | finish of modeling of a 2nd three-dimensional molded item? It is possible to easily determine whether or not. When the whitened part and the modeling planned area overlap, the operator can change the modeling planned area to a part that is not whitened in the tank.

  According to an aspect of the present invention, the control device models the first three-dimensional structure for each of the blocks divided by the dividing unit before starting the modeling of the first three-dimensional structure. A second counting unit that counts the number of times of irradiation with which the light from the light source is irradiated, and the output unit cures the photo-curable resin and has a cross-sectional shape of the first three-dimensional structure. Before sequentially laminating the resin layers, the total number of irradiations counted by the first counting unit and the planned number of irradiations counted by the second counting unit is output for each block.

  According to the said aspect, for example, even if it is a case where whitening has not occurred in a certain block before modeling the first three-dimensional modeled object, the number of times of irradiation and the second counted by the first counting unit. When the total number of irradiation times counted by the counting unit is equal to or greater than a predetermined value, the block is predicted to be whitened during the modeling of the first three-dimensional structure. Even in such a case, the operator can grasp in advance that the block is whitened during the modeling of the first three-dimensional structure. Thereby, the operator can change the shaping | molding plan area | region avoiding the said block.

  According to an aspect of the present invention, the control device includes a setting unit that sets the specified planned shaping area in a predetermined position of the tank, and the setting unit is counted by the first counting unit. The shaping planned area is set in a block whose number of irradiations is less than a predetermined value.

  According to the above aspect, for example, when the tank is whitened when the number of times of irradiation counted by the first counting unit is a predetermined value, the setting unit does not overlap the whitened portion and the modeling planned region. The modeling planned area is automatically set to a block that is not whitened. Thereby, the 1st three-dimensional structure excellent in quality can be modeled.

  According to an aspect of the present invention, the control device includes a setting unit that sets the specified planned shaping area in a predetermined position of the tank, and the setting unit is counted by the first counting unit. The modeling planned area is set in a block in which the total number of times of irradiation and the scheduled number of irradiations counted by the second counter is less than a predetermined value.

  According to the said aspect, for example, even if it is a case where whitening has not occurred in a certain block before modeling the first three-dimensional modeled object, the number of times of irradiation and the second counted by the first counting unit. When the total number of irradiation times counted by the counting unit is equal to or greater than a predetermined value, the block is predicted to be whitened during the modeling of the first three-dimensional structure. For this reason, the setting unit is predicted to be whitened during the modeling of the first three-dimensional modeled object in order to prevent the quality of the modeled product from being deteriorated due to the whitening of the block during the modeling process. The modeling planned area is automatically set so that the part and the modeling planned area do not overlap. Thereby, the 1st three-dimensional structure excellent in quality can be modeled.

  According to an aspect of the present invention, the control device includes a notifying unit that notifies the replacement of the tank, and the notifying unit is configured to set the first counting unit when the setting unit sets the planned shaping area. In the case where it is inevitable that the block to be shaped with the irradiation count counted by the above-mentioned predetermined value and the planned shaping area overlap even if the shaping planned area is moved in the tank, or the first counting When the total number of times of irradiation counted by the unit and the planned number of irradiations counted by the second counting unit overlaps the block to be shaped and the modeling planned region, the modeling planned region is defined as the tank. If it is unavoidable even if it is moved in the chamber, the replacement of the tank is notified before the modeling of the first three-dimensional model is started.

  According to the said aspect, when whitening progresses over the whole tank and a 1st three-dimensional molded item cannot be modeled avoiding the whitened block, it is 1st with respect to an operator. Before starting the modeling of the three-dimensional model, it is possible to prompt the exchange of the tank. Accordingly, it is possible to prevent the first three-dimensional structure from being formed using the whitened tank.

  ADVANTAGE OF THE INVENTION According to this invention, the three-dimensional modeling apparatus which can model a three-dimensional modeling thing avoiding the whitened part among resin-made tanks can be provided.

It is sectional drawing of the three-dimensional modeling apparatus which concerns on one Embodiment of this invention. It is a top view of the three-dimensional modeling apparatus concerning one embodiment of the present invention. It is a block diagram which shows the main elements of the three-dimensional modeling apparatus which concerns on one Embodiment of this invention. It is a figure which shows an example by which the modeling plan area | region was specified to the modeling area | region where light is irradiated among tanks. It is a figure which shows the state with which the modeling plan area | region and the whitened part overlapped when the modeling plan area | region was displayed on the tank. It is a figure which shows the state where the modeling plan area | region and the whitened part have not overlapped when the modeling plan area | region was displayed on the tank. It is a block diagram which shows the main elements of the three-dimensional modeling apparatus which concerns on other one Embodiment of this invention. It is a figure which shows an example in which the modeling area | region irradiated with light among a tank was divided | segmented into the some block. It is a figure which shows an example by which the modeling plan area | region was pinpointed in the modeling area | region divided | segmented into the some block. It is a block diagram which shows the main elements of the three-dimensional modeling apparatus which concerns on other one Embodiment of this invention. It is a figure which shows an example by which the modeling plan area | region was pinpointed in the modeling area | region divided | segmented into the some block. It is a figure which shows an example in which the modeling plan area | region was set so that the modeling modeling area | region and the part to be whitened may not overlap. It is a block diagram which shows the main elements of the three-dimensional modeling apparatus which concerns on other one Embodiment of this invention. It is a perspective view which shows the structure of a three-dimensional structure. It is a graph which shows the irradiation frequency | count of the light irradiated to each block of a modeling plan area | region. It is a figure which shows the state by which the frequency | count of irradiation completed of the light irradiated to each block of a modeling area | region was displayed. It is a figure which shows an example in which the modeling plan area | region was changed so that the modeling planned area | region and the whitened part and the whitened part may not overlap. It is a block diagram which shows the main elements of the three-dimensional modeling apparatus which concerns on other one Embodiment of this invention. It is a figure which shows the state by which the frequency | count of irradiation of the light irradiated to each block of a modeling area | region and the irradiation frequency | count of the light irradiated to each block of a modeling plan area | region were displayed. It is a figure which shows an example in which the modeling plan area | region was changed so that the modeling planned area | region and the whitened part and the whitened part may not overlap.

  Hereinafter, a three-dimensional modeling apparatus according to an embodiment of the present invention will be described with reference to the drawings. The embodiments described herein are, of course, not intended to limit the present invention in particular. Further, members / parts having the same action are denoted by the same reference numerals, and redundant description is omitted or simplified.

  FIG. 1 is a cross-sectional view of a three-dimensional modeling apparatus 10 according to this embodiment. FIG. 2 is a plan view of the three-dimensional modeling apparatus 10. In the following description, the left and right in FIG. 1 are the front and the rear of the three-dimensional modeling apparatus 1 unless otherwise specified. The top, bottom, left, and right in FIG. 2 are the left, right, front, and back of the three-dimensional modeling apparatus 10, respectively. Reference numerals F, Rr, L, and R in the drawings indicate front, rear, left, and right, respectively. However, these are only directions for convenience of explanation, and do not limit the installation mode of the three-dimensional modeling apparatus 10 at all.

  The three-dimensional modeling apparatus 10 prepares a cross-sectional shape of a three-dimensional modeled object, forms a three-dimensional modeled object by sequentially laminating a resin layer having a shape corresponding to the cross-sectional shape by curing a liquid photocurable resin. It is a device to do. The “cross-sectional shape” is a cross-sectional shape when a three-dimensional structure is sliced horizontally for each predetermined thickness (for example, 0.1 mm). “Photocurable resin” is a resin that cures when irradiated with light having a predetermined wavelength.

  As shown in FIG. 1, the three-dimensional modeling apparatus 10 includes a modeling apparatus main body 10 </ b> A and a control apparatus 16. The modeling apparatus main body 10 </ b> A includes a table 11, a tank 12, a holder 13, an optical device 14, and a case 25.

  As shown in FIG. 1, the table 11 is supported by the case 25. An opening 21 is formed in the table 11. The opening 21 is a part through which light applied to the photocurable resin 23 passes. The shape of the opening 21 is not particularly limited. In the present embodiment, as shown in FIG. 2, the opening 21 is formed in a rectangular shape in plan view.

  As shown in FIG. 1, the tank 12 contains a liquid photocurable resin 23. The tank 12 is placed on the table 11. The tank 12 is arrange | positioned so that attachment to the base 11 is possible. As shown in FIG. 2, the tank 12 is a rectangular container in plan view. The tank 12 covers the opening 21 of the table 11 while being placed on the table 11. The tank 12 overlaps the opening 21 of the table 11 in plan view. The tank 12 includes a bottom wall 12A having a rectangular shape in plan view, a left side wall 12B, a right side wall 12C, a front side wall 12D, and a rear side wall 12E that stand from the left end, right end, front end, and rear end of the bottom wall 12A. It has. When the tank 12 is placed on the table 11, a part of the bottom wall 12 </ b> A is located above the opening 21 of the table 11. Here, the rear portion of the bottom wall 12 </ b> A is located above the opening 21. The entire bottom wall 12 </ b> A may be located above the opening 21 of the base 11. At least the bottom wall 12A of the tank 12 is formed of a material capable of transmitting light, for example, a transparent resin material. In the present embodiment, the entire tank 12 is formed of a resin material. The entire tank 12 is formed of, for example, an acrylic resin. A silicone layer 30 is provided on the surface of the bottom wall 12 </ b> A of the tank 12. The silicone layer 30 suppresses the photocurable resin 23 from sticking to the bottom wall 12A.

  As shown in FIG. 1, the holder 13 is disposed above the tank 12. The holder 13 is disposed above the opening 21 of the table 11. As shown in FIG. 2, the holder 13 is formed in a rectangular shape in plan view. The shape of the holder 13 is not particularly limited. The holder 13 is a member that can be raised and lowered. The holder 13 pulls up the photocurable resin 23 cured by irradiation with light from the projector 31 of the optical device 14 from the tank 12. The holder 13 is configured to be immersed in the photocurable resin 23 in the tank 12 when lowered. The holder 13 is configured to lift the photocurable resin 23 that has been irradiated with light and cured when the holder 13 is raised. As shown in FIG. 1, the base 11 is provided with a support column 41 extending in the vertical direction. A slider 42 is attached in front of the column 41. The slider 42 can freely move up and down along the support column 41, and moves upward or downward by the motor 43. The holder 13 is attached to the slider 42. The holder 13 is moved upward or downward by the motor 43. The support column 41 indirectly supports the holder 13 via a slider 42 so as to be movable up and down. However, the support column 41 may directly support the holder 13. The holder 13 is disposed in front of the support column 41.

  As shown in FIG. 1, the optical device 14 is disposed below the table 11. The optical device 14 is a device that irradiates the liquid photocurable resin 23 contained in the tank 12 with light having a predetermined wavelength. The optical device 14 includes a projector 31 and a mirror 32. The optical device 14 is accommodated in a case 25 provided below the table 11. The optical device 14 is supported by the case 25. In the present embodiment, the optical device 14 is disposed below the table 11, but is not limited thereto. The optical device 14 may be disposed above or on the side of the table 11.

  As shown in FIG. 1, the projector 31 is an example of a light source that emits light. However, the light source of the optical device 14 is not limited to the projector 31. In the present embodiment, the projector 31 is disposed below the front portion of the table 11. The projector 31 is disposed in front of the holder 13. The projector 31 includes a lens 34. The lens 34 is disposed at the rear part of the projector 31. Light is emitted from the front to the rear through the lens 34. The light projecting direction of the projector 31 is not particularly limited. Here, more light is emitted from the projector 31 than below the horizontal plane passing through the optical axis 34A of the lens 34.

  As shown in FIG. 1, the mirror 32 reflects the light from the projector 31 toward the tank 12. The mirror 32 is disposed below the opening 21 formed in the table 11. The mirror 32 is disposed behind the projector 31. The mirror 32 is arranged so as to be aligned with the projector 31 in the front-rear direction. The mirror 32 is disposed so as to be inclined forward and downward. The light emitted from the projector 31 is reflected by the mirror 32 and is applied to the photocurable resin 23 in the tank 12 through the opening 21 of the table 11. Here, prior to modeling the three-dimensional modeled object, it is necessary to adjust the light irradiation direction so that all the light emitted from the projector 31 passes through the opening 21. In the present embodiment, the light irradiation direction is adjusted by adjusting the position of the projector 31 prior to modeling the three-dimensional structure, but the light irradiation direction is adjusted by adjusting the angle of the mirror 32. You may adjust.

  As shown in FIG. 1, the three-dimensional modeling apparatus 10 may be provided with a cover 45. The cover 45 is a member that covers the tank 12, the holder 13, the support column 41, and the like disposed above the table 11. The cover 45 can make it difficult for dust from the outside to enter the photocurable resin 23 in the tank 12. Further, the cover 45 can prevent the irradiated light from leaking outside. The cover 45 is preferably made of a material that blocks light including a wavelength that cures the photocurable resin 23. The cover 45 may be an opaque cover.

  Next, the control device 16 will be described. The control device 16 is connected to a motor 43 that controls the slider 42 to which the holder 13 is attached to move up and down. The control device 16 is connected to the projector 31 of the optical device 14. The control device 16 controls the motor 43. The control device 16 drives the motor 43 to move the slider 42 and the holder 13 upward or downward. The control device 16 controls the projector 31 of the optical device 14. The control device 16 controls energy, light intensity, light amount, light wavelength band, light shape, light irradiation position, light emission timing, and the like emitted from the projector 31. The configuration of the control device 16 is not particularly limited. For example, the control device 16 is a computer, and may include a central processing unit (hereinafter referred to as a CPU), a ROM storing a program executed by the CPU, a RAM, and the like.

  As illustrated in FIG. 3, the control device 16 includes a creation unit 50, a specification unit 52, a change unit 61, and a light irradiation unit 60.

  The creation unit 50 creates a cross-sectional shape of a three-dimensional structure to be modeled by the three-dimensional modeling apparatus 10. The creation unit 50 creates slice data obtained by converting the cross-sectional shape into data. Note that the control device 16 may not include the creation unit 50. In this case, the cross-sectional shape data may be created in advance by a personal computer or the like, or may be distributed existing cross-sectional shape data.

  As shown in FIG. 4, the specifying unit 52 is based on the data of each cross-sectional shape created by the creating unit 50 in the modeling region 80 (see also FIG. 2) in the tank 12 where the light of the projector 31 is irradiated. The modeling planned area | region 82 where the 1st three-dimensional molded item is modeled is specified. The first three-dimensional structure is a three-dimensional structure to be formed from now on. The modeling planned area 82 is an area in the tank 12 where the light from the projector 31 is actually irradiated. As shown in FIG. 2, the modeling area 80 is an area overlapping the opening 21 in the tank 12.

  The changing unit 61 changes the modeling planned area 82 specified by the specifying unit 52 to a predetermined position in the tank 12. The changing unit 61 sets the modeling planned area 82 at a predetermined position in the modeling area 80. In this embodiment, the operator determines which position in the modeling area 80 the modeling planned area 82 is set to.

  The light irradiation unit 60 changes the wavelength of light emitted from the projector 31 of the optical device 14. The light irradiation unit 60 cures the light curable resin 23 and sequentially laminates the first three-dimensional cross-sectional resin layers, so that the light from the projector 31 does not cure the light from the projector 31. Change to a light consisting of The light irradiation unit 60 controls the projector 31 to display the specified modeling scheduled area 82 on the tank 12 with the changed light. The light irradiation unit 60 controls the projector 31 so that the planned modeling region 82 specified by the specifying unit 52 is displayed on the silicone layer 30 disposed on the surface of the bottom wall 12A of the tank 12 by the changed light. When the light irradiation unit 60 starts the modeling of the first three-dimensional structure, that is, when the photocurable resin 23 is cured and the lamination of the resin layer having the cross-sectional shape of the first three-dimensional structure is started. The light from the projector 31 is changed to light having a wavelength at which the photocurable resin 23 is cured. The light irradiation unit 60 controls the projector 31 to irradiate the modeling planned region 82 with light having a wavelength at which the photocurable resin 23 is cured. When the modeling planned area 82 is changed by the changing unit 61, the light irradiation unit 60 projects the light having a wavelength at which the photocurable resin 23 is cured to the changed modeling planned area 82. To control.

  As shown in FIG. 5, before the photocurable resin 23 is cured and the cross-sectional resin layers of the first three-dimensional structure are sequentially laminated, light having a wavelength at which the photocurable resin 23 is not cured is projected to the projector. From 31, the modeling region 80 of the tank 12 is irradiated. Thereby, the modeling planned area | region 82 is displayed on the modeling area | region 80 of the tank 12. FIG. Reference numeral 90 in FIG. 5 is a whitened portion of the tank 12. In the example shown in FIG. 5, it can be confirmed that the whitened portion 90 and the modeling planned region 82 overlap. For this reason, as shown in FIG. 6, the operator can change the modeling planned area 82 to a portion of the tank 12 that is not whitened by the changing unit 61.

  As described above, according to the three-dimensional modeling apparatus 10, the light irradiation unit 60 has a wavelength at which the photocurable resin 23 does not cure the light from the projector 31 before modeling the first three-dimensional modeled object. Change to light. And the projector 31 displays the modeling plan area | region 82 on the tank 12 with the changed light. As a result, even when the whitened portion 90 exists in the tank 12, the operator can determine whether or not the whitened portion 90 and the modeling area 82 overlap. When the whitened portion 90 and the modeling planned region 82 overlap, the operator can change the modeling planned region 82 to a portion of the tank 12 that is not whitened. As a result, the first three-dimensional structure excellent in quality can be formed by avoiding the whitened portion 90 in the resin tank 12.

Second Embodiment
FIG. 7 is a block diagram illustrating main elements of the three-dimensional modeling apparatus 10 according to the second embodiment. As shown in FIG. 7, the control device 16 includes a creating unit 50, a specifying unit 52, a light irradiation unit 60A, a storage unit 48, a dividing unit 54, a first counting unit 56, a setting unit 62A, And a notification unit 64A.

  As shown in FIG. 8, the dividing unit 54 divides the modeling area 80 (see also FIG. 2) into a plurality of blocks 84. The dividing unit 54 divides the modeling region 80 into a plurality of blocks 84 in a lattice shape. How to divide the modeling area 80 is determined in advance. The method for dividing the modeling region 80 is not particularly limited. The modeling region 80 may be divided into more blocks 84. The dividing unit 54 does not actually divide the modeling area 80 of the tank 12 into a plurality of blocks 84 but, for example, divides the modeling area 80 displayed on the program into a plurality of blocks 84.

  The first counting unit 56 outputs the light of the projector 31 for each block 84 divided by the dividing unit 54 in the modeling of the second three-dimensional modeled object modeled before the modeling of the first three-dimensional modeled object. Count the number of irradiations with. The first counting unit 56 counts the number of irradiations for each block 84 from the start of modeling of the second three-dimensional modeled object until the modeling is completed. The number of irradiations counted by the first counting unit 56 is stored in the storage unit 48. When the modeling of the first three-dimensional structure is started after the modeling of the second three-dimensional structure is completed, the first counting unit 56 is configured for each block 84 at the end of the modeling of the second three-dimensional structure. Is added to the number of irradiations for each block 84 from the start of modeling of the first three-dimensional structure to the end of modeling. As described above, the first counting unit 56 counts the total number of times of irradiation for each block 84 regardless of the number of three-dimensional shaped objects. Reference numeral 92 in FIG. 9 indicates a portion irradiated with light from the projector 31 (hereinafter, referred to as an irradiation portion 92). The plurality of blocks 84 present in the irradiation portion 92 include a block 84A and a block 84B. In the present embodiment, the block 84B has a smaller number of irradiations with the light emitted from the projector 31 than the block 84A.

  The setting unit 62 </ b> A sets the modeling planned area 82 specified by the specifying unit 52 at a predetermined position in the tank 12. The setting unit 62 </ b> A sets the modeling planned area 82 at a predetermined position in the modeling area 80. The setting unit 62A sets the modeling planned area 82 in the block 84 whose number of irradiations counted by the first counting unit 56 is less than a predetermined value. The setting unit 62A sets the planned modeling area 82 so that the block 84 whose number of irradiations counted by the first counting unit 56 is equal to or greater than a predetermined value and the modeling planned area 82 do not overlap. The predetermined value is the number of times light has been irradiated from the projector 31 when the tank 12 is whitened. The predetermined value is stored in the storage unit 48 in advance.

  60 A of light irradiation parts respond | corresponded to the frequency | count of irradiation completed counted by the 1st count part 56, before hardening the photocurable resin 23 and laminating | stacking the resin layer of the cross-sectional shape of a 1st three-dimensional structure sequentially. When the projector 31 displays the luminance light on the block 84A, the light from the projector 31 is changed to first light having a predetermined luminance that is light having a wavelength at which the photocurable resin 23 is not cured. The light irradiation unit 60A controls the projector 31 so as to irradiate the block 84A with the changed first light. The light irradiation unit 60 </ b> A may increase the brightness of light as the number of irradiations counted by the first counting unit 56 increases. 60 A of light irradiation parts may make the brightness | luminance of light small, so that the frequency | count of irradiation completed counted by the 1st counting part 56 increases. The number of irradiations counted by the first counting unit 56 and the luminance of light may have a one-to-one correspondence. The light irradiation unit 60A is light having a wavelength at which the photocurable resin 23 does not cure the light from the projector 31 when the number of times of irradiation counted by the first counting unit 56 is equal to or greater than the first threshold. The first light having a predetermined luminance may be used. In this case, the first threshold value is stored in the storage unit 48 in advance. The first threshold is, for example, the number of times light has been irradiated from the projector 31 when the tank 12 is whitened. The first threshold value may be any number less than the number of times of light irradiation from the projector 31 when the tank 12 is whitened.

  60 A of light irradiation parts respond | corresponded to the frequency | count of irradiation completed counted by the 1st count part 56, before hardening the photocurable resin 23 and laminating | stacking the resin layer of the cross-sectional shape of a 1st three-dimensional structure sequentially. When the projector 31 displays the luminance light on the block 84B, the second light having a luminance different from the luminance of the first light is light having a wavelength at which the photocurable resin 23 does not cure the light from the projector 31. Change to 60 A of light irradiation parts control the projector 31 so that the changed 2nd light may be irradiated to the block 84B. The light irradiation unit 60A is light having a wavelength at which the photocurable resin 23 does not cure the light from the projector 31 when the number of times of irradiation counted by the first counting unit 56 is less than the first threshold. You may make it the 2nd light which has a different brightness | luminance from the brightness | luminance of 1 light. The second light may be greater than the luminance of the first light. The second light may be smaller than the luminance of the first light.

  60 A of light irradiation parts change the light from the projector 31 into the light which has a wavelength which the photocurable resin 23 hardens | cures, when modeling of a 1st three-dimensional molded item is started. 60 A of light irradiation parts control the projector 31 so that the modeling planned area | region 82 may be irradiated with the light which has a wavelength which the photocurable resin 23 hardens | cures. When the modeling area 82 is set by the setting unit 62A, the light irradiation unit 60A projects the light having a wavelength at which the photocurable resin 23 is cured to the set modeling area 82. To control.

  The notification unit 64A notifies the replacement of the tank 12 before starting the modeling of the first three-dimensional structure. Note that the notification method is not particularly limited, and examples thereof include visual display and notification by voice. In the present embodiment, the operator is visually notified through the display device 46 (see FIG. 7). The notification unit 64A is configured such that when the setting unit 62A sets the modeling planned region 82, the block 84 and the modeling planned region 82 whose number of irradiations counted by the first counting unit 56 is equal to or greater than the predetermined value overlap. If it is unavoidable to move the modeling planned area 82 in the tank 12, the replacement of the tank 12 is notified before the modeling of the first three-dimensional model is started. That is, before starting the modeling of the first three-dimensional modeled object, if the modeling planned area 82 is set to any position in the modeling area 80, the modeling planned area 82 and the block 84 having the predetermined value or more overlap. In addition, the notification unit 64A notifies the replacement of the tank 12. The control device 16 may not include the notification unit 64A. In this case, the tank 12 is replaced at the operator's discretion. Moreover, the control apparatus 16 does not need to be provided with the setting part 62A, when the changing part 61 is provided. In this case, the modeling planned area 82 is changed based on the operator's judgment.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, the operator starts the second three-dimensional modeled object in each block 84 divided by the dividing unit 54 before starting the modeling of the first three-dimensional modeled object. It is possible to grasp the number of times of irradiation of the light irradiated at the time of modeling by the difference in the luminance of the light. Thereby, even if it is a case where the whitening of the tank 12 cannot be recognized visually, after the modeling of the second three-dimensional modeled object, the part 90 whitened by the luminance of light can be recognized. it can. As a result, when the whitened portion 90 and the modeling planned area 82 of the first three-dimensional model overlap, the operator changes the modeling planned area 82 to a part that is not whitened in the tank 12. Can do.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, for example, when the tank 12 is whitened when the number of irradiations counted by the first counting unit 56 is a predetermined value, the setting unit 62A has a whitened portion The modeling planned area 82 is automatically set in the block 84 that is not whitened so that 90 and the modeling planned area 82 do not overlap. Thereby, the 1st three-dimensional structure excellent in quality can be modeled.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, whitening proceeds over the entire tank 12, and when the first three-dimensional modeled object cannot be modeled avoiding the whitened block, It is possible to prompt the operator to replace the tank 12 before starting the modeling of the first three-dimensional structure. Accordingly, it is possible to prevent the first three-dimensional structure from being formed using the whitened tank 12.

<Third Embodiment>
FIG. 10 is a block diagram illustrating main elements of the three-dimensional modeling apparatus 10 according to the third embodiment. As shown in FIG. 10, the control device 16 includes a creating unit 50, a specifying unit 52, a light irradiation unit 60A, a storage unit 48, a dividing unit 54, a first counting unit 56, a setting unit 62B, A notification unit 64B and a second counting unit 58 are provided.

  The second counting unit 58 irradiates the light of the projector 31 when modeling the first three-dimensional structure for each block 84 divided by the dividing unit 54 before starting the modeling of the first three-dimensional structure. Count the number of scheduled irradiations. That is, the second counting unit 58 previously counts the number of times of irradiation with light from the projector 31 necessary for modeling the first three-dimensional modeled object for each block 84. In addition, when modeling one or more other three-dimensional structures simultaneously with the modeling of the first three-dimensional structure, the second counting unit 58 is provided for each of the blocks 84 divided by the dividing unit 54. The total number of scheduled irradiations of a plurality of three-dimensional structures is counted. A symbol 82 in FIG. 11 indicates a portion (that is, a modeling planned region 82) irradiated with light from the projector 31 when modeling the first three-dimensional modeled object. The plurality of blocks 84 existing in the modeling planned area 82 include a block 84Q and a block 84R. In the present embodiment, the block 84R has a smaller number of scheduled irradiations with the light of the projector 31 than the block 84Q.

  The setting unit 62B sets the modeling target region 82 in the block 84 in which the total number of irradiations counted by the first counting unit 56 and the number of irradiations counted by the second counting unit 58 is less than a predetermined value. . The setting unit 62 </ b> B sets the planned modeling area 82 so that the block 84 whose total number of times is equal to or greater than a predetermined value does not overlap with the planned modeling area 82.

  The light irradiation unit 60A further sets the irradiation number of times counted by the second counting unit 58 before the photocurable resin 23 is cured and the cross-sectional resin layers of the first three-dimensional structure are sequentially laminated. When the projector 31 displays the light having the corresponding luminance on the block 84Q, the light from the projector 31 is changed to the third light having a predetermined luminance that is light having a wavelength at which the photocurable resin 23 is not cured. The light irradiation unit 60A controls the projector 31 so as to irradiate the block 84Q with the changed third light. The light irradiation unit 60 </ b> A may increase the luminance of the light as the planned number of irradiations counted by the second counting unit 58 increases. 60 A of light irradiation parts may make the brightness | luminance of light small, so that the irradiation scheduled frequency | count counted by the 2nd counting part 58 increases. The planned number of irradiations counted by the second counting unit 58 and the luminance of light may have a one-to-one correspondence. The light irradiation unit 60A is light having a wavelength at which the photocurable resin 23 does not cure the light from the projector 31 when the scheduled number of irradiations counted by the second counting unit 58 is equal to or greater than the second threshold. Alternatively, the third light having a predetermined luminance may be used. In this case, the second threshold value is stored in the storage unit 48 in advance.

  The light irradiation unit 60A further sets the irradiation number of times counted by the second counting unit 58 before the photocurable resin 23 is cured and the cross-sectional resin layers of the first three-dimensional structure are sequentially laminated. When the projector 31 displays the light having the corresponding luminance on the block 84R, the light having the wavelength at which the photocurable resin 23 does not cure the light from the projector 31 and having a luminance different from the luminance of the third light. Change to light. The light irradiation unit 60A controls the projector 31 so as to irradiate the block 84R with the changed fourth light. The light irradiation unit 60A is light having a wavelength at which the photocurable resin 23 does not cure the light from the projector 31 when the irradiation schedule counted by the second counting unit 58 is less than the second threshold. The fourth light may have a luminance different from the luminance of the light. The fourth light may be greater than the luminance of the third light. The fourth light may be smaller than the luminance of the third light.

  When the modeling area 82 is set by the setting unit 62B, the light irradiation unit 60A projects the light having a wavelength at which the photocurable resin 23 is cured to the set modeling area 82. To control.

  When the setting unit 62B sets the modeling planned area 82, the notification unit 64B is configured so that the total number of irradiations counted by the first counting unit 56 and the scheduled irradiations counted by the second counting unit 58 is the above. If it is inevitable that the block 84 and the planned modeling area 82 that are equal to or larger than the predetermined value overlap the planned modeling area 82 in the tank 12, before the modeling of the first three-dimensional model is started. , Notify the exchange of the tank 12.

  As shown in FIG. 11, among the blocks 84 where the irradiation portion 92 and the modeling planned region 82 specified by the specifying unit 52 overlap, in the block 84X, the number of irradiated times and the second count counted by the first counter 56. When the total number of irradiation times counted by the unit 58 is equal to or greater than a predetermined value, the setting unit 62B sets the modeling planned area 82 so that the block 84X and the modeling planned area 82 do not overlap (see FIG. 12). ).

  According to the three-dimensional modeling apparatus 10 of the present embodiment, the light applied to the block 84A and the block 84B may be combined with the light applied to the block 84Q and the block 84R. Thereby, when modeling a 1st three-dimensional structure from now on, the block 84X which whitens in the middle of modeling among the tanks 12 can be recognized based on the difference in the brightness | luminance of light. As a result, when the block 84 </ b> X that is whitened in the middle of the modeling of the first three-dimensional modeled object in the tank 12 and the modeling planned area 82 overlap, the operator whitens in the middle of the modeling in the tank 12. The modeling planned area 82 can be changed to a portion not to be processed.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, for example, before the first three-dimensional modeled object is modeled, the first counter 56 counts even if whitening has not occurred in a certain block. When the total number of irradiations performed and the planned number of irradiations counted by the second counting unit 58 exceeds a predetermined value, the block is predicted to be whitened during the modeling of the first three-dimensional structure. Is done. For this reason, the setting unit 62B and the part that is whitened in the middle of the modeling of the first three-dimensional modeled object and the modeling plan in order to prevent deterioration of the quality of the modeled object due to the whitening of the block in the middle of modeling The modeling planned area 82 is automatically set so that the area 82 does not overlap. Thereby, the 1st three-dimensional structure excellent in quality can be modeled.

<Fourth embodiment>
FIG. 13 is a block diagram illustrating main elements of the three-dimensional modeling apparatus 10 according to the fourth embodiment. As illustrated in FIG. 13, the control device 16 includes a creating unit 50, a specifying unit 52, a storage unit 48, a dividing unit 54, a first counting unit 56, a setting unit 62A, a notification unit 64A, and an output. 66A. Here, the case where the three-dimensional structure 86 shown in FIG. 14 is modeled will be described as an example. As shown in FIG. 15, when modeling the three-dimensional structure 86, the scheduled irradiation times N of light irradiated to the respective blocks 84 </ b> A, 84 </ b> B, 84 </ b> C, 84 </ b> D, 84 </ b> E are 100, 80, 60, 40, 20.

  As illustrated in FIG. 16, the output unit 66 </ b> A cures the photocurable resin 23 and sequentially laminates the resin layers having a cross-sectional shape of the three-dimensional structure 86, and the modeling planned region 82 specified by the specifying unit 52. Is output. The output unit 66 </ b> A outputs the modeling area 82 to the display device 47. An example of the display device 47 is a liquid crystal display. The modeling planned area 82 is displayed on the display device 47. The output unit 66A outputs the number of irradiations counted by the first counting unit 56 for each block 84 before the photocurable resin 23 is cured and the cross-sectional resin layers of the three-dimensional structure 86 are sequentially laminated. To do. The output unit 66A outputs the number of irradiated times counted by the first counting unit 56 to the display device 47 for each block 84. The number of irradiations counted by the first counting unit 56 is displayed on the display device 47 for each block 84. For example, when the modeling of the three-dimensional structure 86 is performed twice in the tank 12, as illustrated in FIG. 16, the output unit 66A outputs the number of irradiations 200 to the block 84A and the number of irradiations to the block 84B. 160, the number of irradiations 120 is output to the block 84C, the number of irradiations 80 is output to the block 84D, and the number of irradiations 40 is output to the block 84E.

  The output unit 66 </ b> A outputs the first color to the block 84 in which the number of irradiations counted by the first counting unit 56 among the plurality of blocks 84 is a predetermined value or more, and the first counting unit among the plurality of blocks 84. A second color different from the first color may be output to the block 84 whose number of irradiations counted by 56 is less than a predetermined value. This predetermined value may be the number of times the light from the projector 31 has been irradiated when the tank 12 is whitened. In addition, regarding the block 84 in which the number of times of irradiation counted by the first counting unit 56 is less than a predetermined value, the color may be changed according to the number of times of irradiation.

  The notification unit 64A visually notifies the operator of the exchange of the tank 12 through the display device 47 (see FIG. 13) before starting the modeling of the three-dimensional model 86. The notification method may be notification by voice or the like.

  As shown in FIG. 16, the output unit 66 </ b> A is irradiated by the first counting unit 56 before the photocurable resin 23 is cured and the resin layers having the cross-sectional shapes of the three-dimensional structure 86 are sequentially laminated. By outputting the number of times for each block 84, it is possible to confirm which part of the tank 12 is whitened. For example, when the tank 12 is whitened when the number of irradiated times is 180 or more, it is confirmed that the block 84A of the tank 12 is whitened. Moreover, when the tank 12 turns white when the number of irradiations is 180 or more, the output unit 66A may output red to the block. Thereby, the operator can recognize that the red block is whitened. As illustrated in FIG. 17, the setting unit 62 </ b> A sets the planned modeling area 82 so that the block 84 </ b> A and the planned modeling area 82 do not overlap. The control device 16 controls the projector 31 to irradiate the modeling planned region 82 with light having a wavelength at which the photocurable resin 23 is cured. When the modeling planned area 82 is set by the setting unit 62A, the control device 16 causes the projector 31 to irradiate the set modeling planned area 82 with light having a wavelength at which the photocurable resin 23 is cured. Control. In addition, even if the control device 16 does not include the setting unit 62A, if the control unit 16 includes the changing unit 61, the operator can recognize the whitened portion (block 84A). The modeling plan area | region 82 can be changed to the part which is not whitening among the tanks 12. FIG.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, before the three-dimensional model 86 is modeled, the output unit 66A outputs the modeling target area 82 and before the three-dimensional model 86 is modeled. For each block 84, the number of irradiations with which the light of the projector 31 is irradiated in the modeling of the modeled second three-dimensional model is output. The operator can determine whether the block 84 is whitened based on the number of times of irradiation with the light of the projector 31 in modeling the second three-dimensional modeled object. Further, the operator can determine whether or not the whitened portion 90 and the modeling planned area 82 overlap after the completion of the modeling of the second three-dimensional modeled object. When the whitened portion 90 and the modeling planned region 82 overlap, the operator can change the modeling planned region 82 to a portion of the tank 12 that is not whitened. As a result, the three-dimensional structure 86 excellent in quality can be modeled by avoiding the whitened portion 90 of the resin tank 12.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, for example, when the tank 12 is whitened when the number of times of irradiation counted by the first counting unit 56 is a predetermined value, the operator confirms the first color. By doing so, it can be easily recognized that the block 84A is whitened. Thereby, even if it is a case where an operator cannot recognize the whitening of the tank 12 visually, the whitened part 90 and the modeling planned area 82 after the modeling of the second three-dimensional model is completed. Can be easily determined. When the whitened portion 90 and the modeling planned region 82 overlap, the operator can change the modeling planned region 82 to a portion of the tank 12 that is not whitened.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, for example, when the tank 12 is whitened when the number of irradiations counted by the first counting unit 56 is a predetermined value, the setting unit 62A has a whitened portion The planned modeling area 82 is automatically set in a block that is not whitened so that 90 and the planned modeling area 82 do not overlap. Thereby, the three-dimensional structure 86 excellent in quality can be modeled.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, whitening progresses over the entire tank 12, and when the three-dimensional model 86 cannot be modeled while avoiding the whitened block, the operator On the other hand, the exchange of the tank 12 can be urged before the modeling of the three-dimensional model 86 is started. Thereby, it is possible to prevent the three-dimensional structure 86 from being formed using the whitened tank 12.

<Fifth Embodiment>
FIG. 18 is a block diagram illustrating main elements of the three-dimensional modeling apparatus 10 according to the fifth embodiment. As illustrated in FIG. 18, the control device 16 includes a creation unit 50, a specification unit 52, a storage unit 48, a division unit 54, a first counting unit 56, a setting unit 62B, a notification unit 64B, and an output. 66A and the 2nd counting part 58 are provided.

  The output unit 66A further cures the photocurable resin 23 and sequentially laminates the resin layers having the cross-sectional shape of the three-dimensional structure 86, and the irradiation count and the second count counted by the first counting unit 56. The total number of times of irradiation and the number of times of irradiation counted by the unit 58 is output for each block 84. The output unit 66 </ b> A outputs the total number of irradiations counted by the first counting unit 56 and the scheduled number of irradiations counted by the second counting unit 58 to the display device 47 for each block 84. The total number of irradiations counted by the first counting unit 56 and the scheduled number of irradiations counted by the second counting unit 58 is displayed on the display device 47 for each block 84. For example, when the modeling of the three-dimensional structure 86 is performed twice in the tank 12, as shown in FIG. 19, the output unit 66A outputs the number of irradiations 200 to the block 84A and the number of irradiations to the block 84B. 160, the number of irradiations 120 is output to the block 84C, the number of irradiations 80 is output to the block 84D, and the number of irradiations 40 is output to the block 84E. Further, the output unit 66A outputs the total number 300 to the block 84F, outputs the total number 240 to the block 84G, outputs the total number 180 to the block 84H, outputs the total number 120 to the block 84I, and outputs to the block 84J. The total number of times 60 is output. Further, the output unit 66A outputs the scheduled irradiation number 100 to the block 84K, outputs the scheduled irradiation number 80 to the block 84L, outputs the scheduled irradiation number 60 to the block 84M, and outputs the scheduled irradiation number 40 to the block 84N. The scheduled number of irradiations 20 is output to the block 84O.

  The output unit 66A further outputs a block 84 in which the total number of times of irradiation counted by the first counting unit 56 and the scheduled number of irradiations counted by the second counting unit 58 among the plurality of blocks 84 is a predetermined value or more. Outputs the first color, and among the plurality of blocks 84, the total number of times of irradiation counted by the first counting unit 56 and the number of irradiations counted by the second counting unit 58 is less than a predetermined value. 84 may output a second color different from the first color.

  As shown in FIG. 19, before the photocurable resin 23 is cured and the resin layers having the cross-sectional shapes of the three-dimensional structure 86 are sequentially laminated, the number of irradiated times and the second count counted by the first counter 56. By outputting the total number of times of irradiation with the number of irradiations counted by the unit 58 for each block 84, which part of the tank 12 is whitened and which part of the tank 12 may be whitened in the future. Can be confirmed. For example, when the tank 12 is whitened when the number of times of irradiation is 180 or more, it is confirmed that the block 84A and the block 84F of the tank 12 are already whitened. Moreover, it is confirmed that the block 84G and the block 84H are whitened in the middle of modeling the three-dimensional model 86 next. As illustrated in FIG. 20, the setting unit 62B sets the planned modeling area 82 so that the blocks 84A, 84F, 84G, and 84H and the planned modeling area 82 do not overlap. When the modeling area 82 is set by the setting unit 62B, the control device 16 causes the projector 31 to irradiate the set modeling area 82 with light having a wavelength at which the photocurable resin 23 is cured. Control. In addition, even when the control device 16 does not include the setting unit 62B, when the change unit 61 is provided, the worker can whiten the portion (blocks 84A and 84F) and the portion to be whitened from now on. Since the (blocks 84G and 84H) can be recognized, the shaping planned area 82 can be changed to a portion of the tank 12 that is not whitened and a portion that is not whitened.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, before the three-dimensional model 86 is modeled, even when no whitening occurs in the blocks 84G and 84H, the first counting unit 56 counts them. When the total number of times of irradiation and the number of times of irradiation counted by the second counting unit 58 exceeds a predetermined value, it is predicted that the blocks 84G and 84H are whitened during the modeling of the three-dimensional structure 86. . Even in such a case, the operator can grasp in advance that the blocks 84G and 84H are whitened while the three-dimensional structure 86 is being formed. Thereby, the operator can change the shaping | molding plan area | region 82 avoiding the said blocks 84G and 84H.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, the setting unit 62B prevents the quality of the three-dimensional model 86 from being deteriorated due to whitening of the blocks 84G and 84H during the modeling of the three-dimensional model 86. Therefore, the planned modeling area 82 is automatically set so that the blocks 84G and 84H predicted to be whitened during the modeling of the three-dimensional model 86 do not overlap with the planned modeling area 82. Thereby, the three-dimensional structure 86 excellent in quality can be modeled.

  In the above-described embodiment, the first counting unit 56 counts the number of times the light of the projector 31 has been irradiated for each block 84 divided by the dividing unit 54, but is not limited thereto. For example, the first counting unit 56 may count the irradiated time when the light of the projector 31 is irradiated for each block 84 divided by the dividing unit 54.

  In the above-described embodiment, the second counting unit 58 counts the number of times of irradiation scheduled to be irradiated with the light of the projector 31 when modeling a three-dimensional structure for each block 84 divided by the dividing unit 54. However, it is not limited to this. For example, the second counting unit 58 may count the scheduled irradiation time during which the light of the projector 31 is irradiated when a three-dimensional structure is formed for each block 84 divided by the dividing unit 54.

  In the second to fifth embodiments described above, the control device 16 does not include the changing unit 61, but may include the changing unit 61. In this case, the modeling planned area 82 can be automatically set by the setting units 62A and 62B, or can be arbitrarily set by the operator by the changing unit 61.

DESCRIPTION OF SYMBOLS 1 3D modeling apparatus 12 Tank 16 Control apparatus 31 Projector 52 Specification part 54 Dividing part 56 1st counting part 58 2nd counting part 60, 60A, 60B Light irradiation part 62A, 62B Setting part 64A, 64B Notification part 66A, 66B Output Part 80 Modeling area 82 Modeling planned area 84 block

Claims (12)

A three-dimensional modeling apparatus for preparing the three-dimensional structure by preparing a cross-sectional shape of a three-dimensional structure, curing a photocurable resin, and sequentially laminating the resin layers having the cross-sectional shape,
An optical device that is molded of a resin material and contains the photocurable resin; and a light source that emits light; and an optical device that irradiates the photocurable resin contained in the vessel with light from the light source; A modeling apparatus main body comprising:
A control device for controlling the optical device,
The controller is
A specifying unit for specifying a modeling planned area in which the first three-dimensional modeled object is modeled in the tank;
The light from the light source is changed to light having a wavelength at which the photocurable resin is not cured before the photocurable resin is cured and the cross-sectional resin layers of the first three-dimensional structure are sequentially laminated. And a light irradiation unit that controls the optical device so as to display the specified modeling planned region on the tank by the changed light. The control device includes a dividing unit that divides a region of the tank that is irradiated with light from the light source into a plurality of blocks;
In the modeling of the second three-dimensional modeled object modeled before the modeling of the first three-dimensional modeled object, the light from the light source has been irradiated for each of the blocks divided by the dividing unit. A first counting unit for counting the number of times,
The plurality of blocks include a first block and a second block in which the number of times of irradiation with the light from the light source is smaller than that of the first block,
The light irradiation unit corresponds to the number of irradiations counted by the first counting unit before the photocurable resin is cured and the resin layers having a cross-sectional shape of the first three-dimensional structure are sequentially stacked. When the optical device displays the light having the brightness on the first block, the light from the light source is changed to the first light having a predetermined brightness that is light having a wavelength at which the photocurable resin is not cured. Then, the optical device is controlled so as to irradiate the changed first light to the first block, and the photo-curing resin is cured to obtain a cross-sectional shape of the first three-dimensional structure. Before sequentially laminating the resin layers, when the optical device displays the light of the brightness corresponding to the number of irradiations counted by the first counting unit on the second block, the light from the light source is photocured. Light with a wavelength that does not cure the functional resin 2. The optical device is controlled to change to second light having a luminance different from the luminance of the first light, and to irradiate the second block with the changed second light. 3D modeling equipment. The control device irradiates the light of the light source when modeling the first three-dimensional structure for each of the blocks divided by the dividing unit before starting the modeling of the first three-dimensional structure. A second counting unit that counts the number of times the irradiation is performed,
The plurality of blocks include a third block and a fourth block in which the number of times of irradiation with which light from the light source is irradiated is smaller than that of the third block,
The light irradiation unit corresponds to the planned number of irradiations counted by the second counting unit before the photocurable resin is cured and the resin layers having the cross-sectional shape of the first three-dimensional structure are sequentially stacked. When the optical device displays the light having the brightness on the third block, the light from the light source is changed to the third light having a predetermined brightness that is light having a wavelength at which the photocurable resin is not cured. Then, the optical device is controlled to irradiate the third block with the changed third light, and the photocurable resin is cured to obtain a cross-sectional shape of the first three-dimensional structure. When the optical device displays light having a luminance corresponding to the scheduled number of irradiations counted by the second counting unit on the fourth block before sequentially laminating the resin layers, the light from the light source is photocured. Light with a wavelength that does not cure the functional resin The optical device is controlled to change to a fourth light having a luminance different from a luminance of the third light, and to irradiate the fourth block with the changed fourth light. 3D modeling equipment. The control device includes a setting unit that sets the specified modeling planned area at a predetermined position of the tank,
The three-dimensional modeling apparatus according to claim 2 or 3, wherein the setting unit sets the modeling target region in a block in which the number of irradiations counted by the first counting unit is less than a predetermined value. The control device includes a setting unit that sets the specified modeling planned area at a predetermined position of the tank,
The setting unit sets the planned shaping area in a block in which a total number of times of irradiation counted by the first counting unit and a planned number of irradiation counted by the second counting unit is less than a predetermined value. The three-dimensional modeling apparatus according to claim 3. The control device includes a notification unit that notifies the replacement of the tank,
The notification unit is configured such that when the setting unit sets the modeling planned area, the block whose number of irradiations counted by the first counting unit is equal to or greater than the predetermined value overlaps the modeling modeling area, If it is unavoidable even if the modeling planned area is moved in the tank, or the total number of irradiations counted by the first counting unit and the number of irradiations counted by the second counting unit is If it is inevitable that the block of the predetermined value or more and the planned modeling area overlap even if the planned modeling area is moved in the tank, before the modeling of the first three-dimensional model is started The three-dimensional modeling apparatus according to claim 4, wherein the tank replacement is notified. A three-dimensional modeling apparatus for preparing the three-dimensional structure by preparing a cross-sectional shape of a three-dimensional structure, curing a photocurable resin, and sequentially laminating the resin layers having the cross-sectional shape,
An optical device that is molded of a resin material and contains the photocurable resin; and a light source that emits light; and an optical device that irradiates the photocurable resin contained in the vessel with light from the light source; A modeling apparatus main body comprising:
A control device for controlling the optical device,
The controller is
A specifying unit for specifying a modeling planned area in which the first three-dimensional modeled object is modeled in the tank;
A dividing unit that divides a region of the tank that is irradiated with light from the light source into a plurality of blocks;
In the modeling of the second three-dimensional modeled object modeled before the modeling of the first three-dimensional modeled object, the light from the light source has been irradiated for each of the blocks divided by the dividing unit. A first counter for counting the number of times;
Before the photocurable resin is cured and the cross-sectional resin layers of the first three-dimensional structure are sequentially laminated, the specified modeling area is output and counted by the first counting unit. And an output unit that outputs the number of irradiations performed for each block.   The output unit outputs a first color to a block in which the number of irradiations counted by the first counting unit among the plurality of blocks is a predetermined value or more, and the first counting unit among the plurality of blocks. The three-dimensional modeling apparatus according to claim 7, wherein a second color different from the first color is output to a block in which the number of irradiations counted by the step is less than a predetermined value. The control device irradiates the light of the light source when modeling the first three-dimensional structure for each of the blocks divided by the dividing unit before starting the modeling of the first three-dimensional structure. A second counting unit that counts the number of times the irradiation is performed,
The output unit cures the photocurable resin and sequentially laminates the cross-sectional resin layers of the first three-dimensional structure, and the number of irradiations counted by the first counting unit and the first count The three-dimensional modeling apparatus according to claim 7 or 8, wherein a total number of times of irradiation with the number of times counted by the two-counting unit is output for each block. The control device includes a setting unit that sets the specified modeling planned area at a predetermined position of the tank,
The three-dimensional modeling apparatus according to any one of claims 7 to 9, wherein the setting unit sets the planned modeling area in a block whose number of irradiations counted by the first counting unit is less than a predetermined value. . The control device includes a setting unit that sets the specified modeling planned area at a predetermined position of the tank,
The setting unit sets the planned shaping area in a block in which a total number of times of irradiation counted by the first counting unit and a planned number of irradiation counted by the second counting unit is less than a predetermined value. The three-dimensional modeling apparatus according to claim 9. The control device includes a notification unit that notifies the replacement of the tank,
The notification unit is configured such that when the setting unit sets the modeling planned area, the block whose number of irradiations counted by the first counting unit is equal to or greater than the predetermined value overlaps the modeling modeling area, If it is unavoidable even if the modeling planned area is moved in the tank, or the total number of irradiations counted by the first counting unit and the number of irradiations counted by the second counting unit is If it is inevitable that the block of the predetermined value or more and the planned modeling area overlap even if the planned modeling area is moved in the tank, before the modeling of the first three-dimensional model is started The three-dimensional modeling apparatus according to claim 10 or 11, which notifies the replacement of the tank.

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