JP2016141129A - Three-dimensional shaping apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional shaping apparatus that, when a three-dimensional shaped object is remove from a stage, can prevent the three-dimensional shaped object from being deformed and damaged and allows the three-dimensional shaped object to be easily removed from the stage.SOLUTION: A three-dimensional shaping apparatus includes a stage 50 holding a resin material discharged from a nozzle. The stage 50 comprises a first member 51 with a first shaping surface 52, a second member 61 with a second shaping surface 62 adjacent to the first shaping surface 52, and a third member 68 connected to the first member 51 and the second member 61. The third member 68 moves the second member 61 downward to set the second shaping surface 62 below the first shaping surface 52 and moves the second member 61 upward to set the first shaping surface 52 below the second shaping surface 62.SELECTED DRAWING: Figure 2

Description

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

  2. Description of the Related Art Conventionally, a three-dimensional modeling apparatus that forms a three-dimensional model by sequentially laminating resin materials having a predetermined cross-sectional shape and curing the resin material is known.

  As this type of three-dimensional modeling apparatus, for example, as shown in the cited document 1, a three-dimensional modeling apparatus including a modeling head including a nozzle that discharges a resin material and a stage that holds the discharged resin material is used. Are known. By discharging the resin material from the nozzle, a three-dimensional structure is formed on the stage. Further, as shown in the cited document 2, a tank containing a liquid photocurable resin, a light source for irradiating light disposed below the tank, and a vertically movable stage disposed above the tank, A three-dimensional modeling apparatus provided is known. A three-dimensional structure is formed on the lower surface of the stage by irradiating light to the liquid photocurable resin accommodated in the tank and curing the photocurable resin.

JP 2000-280354 A JP 2003-039564 A

  By the way, after the modeling of the three-dimensional structure is completed, the three-dimensional structure is removed from the stage. The completed three-dimensional structure is fixed to the stage. For this reason, the three-dimensional structure must be removed from the stage by pulling the three-dimensional structure or inserting a spatula between the three-dimensional structure and the stage. However, when the three-dimensional structure is pulled off from the stage by pulling the three-dimensional structure, a pulling force is applied to the three-dimensional structure, and the three-dimensional structure may be deformed or damaged. . In addition, by inserting a spatula between the three-dimensional structure and the stage, when the three-dimensional structure is peeled off from the stage, a force is applied only to the portion where the spatula is inserted in the three-dimensional structure, There is a risk that the portion may be deformed or damaged. In particular, the larger the contact area between the three-dimensional structure and the stage, the greater the force for peeling the three-dimensional structure from the stage, and the higher the risk of deformation and damage.

  The present invention has been made in view of such points, and its purpose is to prevent deformation and breakage of the three-dimensional structure when removing the three-dimensional structure from the stage, and to easily remove the three-dimensional structure from the stage. It is to provide a three-dimensional modeling apparatus that can be removed.

  A three-dimensional modeling apparatus according to the present invention is a three-dimensional modeling apparatus that models a three-dimensional structure by sequentially curing a resin material and sequentially laminating resins having a predetermined cross-sectional shape, and includes a nozzle that discharges the resin material. And a stage that is disposed below the modeling head and holds the resin material discharged from the nozzle. The stage holds the resin material discharged from the nozzle. A first member having a first modeling surface, a second member having a second modeling surface that holds the resin material discharged from the nozzle and is adjacent to the first modeling surface in plan view, and A first member and a third member coupled to the second member, and when the vertical position of the first modeling surface and the second modeling surface is the same, the first modeling from the nozzle Surface and the second structure The resin material is discharged onto a surface, the third member moves the second member downward, places the second modeling surface below the first modeling surface, and moves the second member upward And the first modeling surface is arranged below the second modeling surface.

  According to the three-dimensional modeling apparatus according to the present invention, the third member is configured to move the second member downward and dispose the second modeling surface below the first modeling surface. For this reason, a force in a direction facing downward from the second modeling surface is applied to the three-dimensional modeling object formed on the first modeling surface and the second modeling surface. At this time, the downward movement of the three-dimensional structure is regulated by the first modeling surface. For this reason, only the second modeling surface moves downward, and the three-dimensional modeling object is peeled off from the second modeling surface. On the other hand, the third member is configured to move the second member upward and to dispose the first modeling surface below the second modeling surface. For this reason, a force in a direction directed upward from the second modeling surface is applied to the three-dimensional modeling object formed on the first modeling surface and the second modeling surface. For this reason, the three-dimensional structure moves upward together with the second modeling surface, and the three-dimensional structure is peeled off from the first modeling surface. Thus, when the three-dimensional structure is peeled off from the first modeling surface and the second modeling surface, a uniform force is applied to the three-dimensional structure from the first modeling surface and the second modeling surface, respectively. The deformation and breakage of the three-dimensional structure can be prevented. Further, the three-dimensional structure can be easily peeled off from the first modeling surface and the second modeling surface by moving the second member in the vertical direction. Note that the modeling of the three-dimensional model is performed when the first modeling surface and the second modeling surface of the stage are flush with each other. That is, when the vertical positions of the first modeling surface and the second modeling surface are the same, the resin material is discharged from the nozzle to the first modeling surface and the second modeling surface. For this reason, when the surface of the stage where the resin material is discharged is uneven, it is possible to prevent a problem that the three-dimensional structure to be modeled is partially displaced.

  A three-dimensional modeling apparatus according to the present invention is a three-dimensional modeling apparatus that models a three-dimensional structure by curing a photocurable resin material and sequentially laminating a resin having a predetermined cross-sectional shape. A tank that houses the tank, a stage having the light passing part through which the light is irradiated to the photocurable resin, and a light source that emits light is disposed below the stage. An optical device that irradiates the photocurable resin in the tank with light from the light source through the light passage part, and a photocurable resin in the tank that is provided so as to be movable up and down above the tank and descends. And a stage for lifting the photocurable resin cured by being irradiated with the light when it is raised, and the stage holds the cured photocurable resin. A first member comprising: and the curing And a third member connected to the first member and the second member, the second member having a second modeling surface that is adjacent to the first modeling surface in a bottom view. And when the vertical position of the first modeling surface and the second modeling surface is the same, the stage is immersed in a photocurable resin in the tank, and the third member is The second member is moved downward, the second modeling surface is disposed below the first modeling surface, the second member is moved upward, and the first modeling surface is moved to the second modeling surface. It is comprised so that it may arrange | position below.

  According to the 3D modeling apparatus according to the present invention, when the 3D model is peeled off from the first model surface and the second model surface, the first model surface and the second model surface are respectively changed to the 3D model. Since a uniform force is applied, deformation and breakage of the three-dimensional structure can be prevented. Further, the three-dimensional structure can be easily peeled off from the first modeling surface and the second modeling surface by moving the second member in the vertical direction.

  According to an aspect of the present invention, the first modeling surface is constituted by a plurality of first holding surfaces, the second modeling surface is constituted by a plurality of second holding surfaces, and the plurality of first holding surfaces. And the plurality of second holding surfaces are alternately arranged.

  According to the said aspect, when peeling a 3D modeling object from a 1st modeling surface and a 2nd modeling surface, the force added to a 3D modeling object from a 1st modeling surface and a 2nd modeling surface is disperse | distributed. For this reason, the deformation | transformation and damage of a three-dimensional structure can be prevented more reliably.

  According to one aspect of the present invention, either the first modeling surface or the second modeling surface is configured by a plurality of holding surfaces, and the plurality of holding surfaces are not adjacent to each other.

  According to the said aspect, when peeling a 3D modeling object from a 1st modeling surface and a 2nd modeling surface, the force added to a 3D modeling object from a 1st modeling surface and a 2nd modeling surface is disperse | distributed. For this reason, the deformation | transformation and damage of a three-dimensional structure can be prevented more reliably.

  According to an aspect of the present invention, the first member includes a first support portion including the first modeling surface and a first surface located on the opposite side of the first modeling surface, and the first support portion. And a main body portion provided with a facing surface facing the first support portion, wherein the second member includes the second modeling surface and the second modeling surface. A second support portion having a second surface located on the opposite side, and the stage is disposed between the first support portion and the second support portion and the main body portion, and has a detachable stopper. Provided, when the vertical positions of the first modeling surface and the second modeling surface are the same, the vertical positions of the first surface and the second surface are the same, and the stopper is The first surface and the second surface are in contact with the facing surface.

  According to the said aspect, it becomes easy to make the vertical position of the 1st modeling surface and the 2nd modeling surface the same. Moreover, since the stopper is detachable, when the three-dimensional structure is to be peeled off from the first modeling surface and the second modeling surface, the second member can be moved upward and downward by removing the stopper.

  According to an aspect of the present invention, the third member is a screw, the screw is rotatably fixed to the first member, and the second member includes a female screw portion that engages with the screw. As the screw rotates, it moves up and down.

  According to the above aspect, the second member can be moved upward and downward by a simple configuration in which the screw is rotated. That is, the relative positional relationship between the first modeling surface and the second modeling surface can be easily changed.

  ADVANTAGE OF THE INVENTION According to this invention, when removing a three-dimensional structure from a stage, while preventing a deformation | transformation and damage of a three-dimensional structure, the three-dimensional structure apparatus which can remove a three-dimensional structure from a stage easily is provided. be able to.

It is a perspective view which shows the structure of the three-dimensional modeling apparatus which concerns on one Embodiment. It is a side view which shows the stage which concerns on one Embodiment. It is a top view which shows the stage which concerns on one Embodiment. It is a side view which shows the stage which concerns on one Embodiment, and is a side view which shows the state which the 2nd member moved below. It is a side view which shows the stage which concerns on one Embodiment, and is a side view which shows the state which the 2nd member moved upwards. It is a side view showing the state where the stopper was attached to the stage concerning one embodiment. It is a perspective view which shows the stopper which concerns on one Embodiment. It is a side view which shows the state by which the three-dimensional structure was modeled on the stage which concerns on one Embodiment. It is a side view which shows the state by which the three-dimensional structure was torn off from the 2nd modeling surface of the stage which concerns on one Embodiment. It is a side view which shows the state by which the three-dimensional structure was torn off from the 1st modeling surface of the stage which concerns on one Embodiment. It is sectional drawing which shows the structure of the three-dimensional modeling apparatus which concerns on other one Embodiment. It is a side view which shows the stage which concerns on other one Embodiment. It is sectional drawing which shows the structure of the three-dimensional modeling apparatus which concerns on other one Embodiment. It is a top view which shows the stage which concerns on other one Embodiment. It is a top view which shows the stage which concerns on other one Embodiment. It is a top view which shows the stage which concerns on other one Embodiment.

<First Embodiment>
Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the three-dimensional modeling apparatus 10 according to the present embodiment models a three-dimensional modeled object by sequentially curing a resin material and sequentially laminating resins having a predetermined cross-sectional shape. In the following description, a case where a thermoplastic resin is used as the resin material will be described as an example. However, the application target of the present invention is not intended to be limited to this kind of resin material.

  In the following description, unless otherwise specified, the symbol X in the drawings indicates the X axis and represents the left-right direction. The symbol Y in the drawing indicates the Y axis and indicates the front-rear direction. The symbol Z in the drawing indicates the Z axis and indicates the vertical direction. These are only directions for convenience of explanation, and do not limit the installation mode of the three-dimensional modeling apparatus 10 at all.

  As shown in FIG. 1, the three-dimensional modeling apparatus 10 includes a housing 20, a modeling head 30, a stage 50, a cartridge 70, a control device 80, and a moving mechanism 90. In FIG. 1, the stage 50 is illustrated in a simplified manner.

  The overall operation of the three-dimensional modeling apparatus 10 is controlled by the control device 80. The configuration of the control device 80 is not particularly limited. For example, the control device 80 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 shown in FIG. 1, the housing 20 includes a right side wall 20A, a left side wall 20B, a bottom wall 20C, a rear wall 20D, and an upper wall 20E. An opening 22 is formed in the housing 20 from the upper side to the front side.

  As shown in FIG. 1, the moving mechanism 90 is disposed in the housing 20. The moving mechanism 90 includes a guide rail 92 and a moving member 94. The guide rail 92 extends in the X-axis direction of the XYZ orthogonal coordinate system. The guide rail 92 extends in the left-right direction. The guide rail 92 is connected to the right side wall 20A and the left side wall 20B. The moving member 94 is movably provided on the guide rail 92. The moving member 94 moves in the X-axis direction under the driving force of a first motor (not shown). The first motor is controlled by the control device 80. The moving member 94 moves in the left-right direction. A guide rail 96 is provided on the moving member 94. The guide rail 96 extends in the Z-axis direction of the XYZ orthogonal coordinate system. The guide rail 96 extends in the vertical direction.

  As shown in FIG. 1, the modeling head 30 is disposed in the housing 20. The modeling head 30 is provided on the moving member 94. The modeling head 30 is movably provided on the guide rail 96. The modeling head 30 includes a main body 32, a nozzle 34 that discharges a resin material, a heater 36, a roller gear 38A, and a roller gear 38B. The main body 32 is movably provided on the guide rail 96. The main body 32 moves in the Z-axis direction under the driving force of a second motor (not shown). The main body 32 moves in the vertical direction. The nozzle 34 discharges the thermoplastic resin 72 conveyed from the cartridge 70 to the stage 50. The heater 36 applies heat to the thermoplastic resin 72 conveyed from the cartridge 70. The heater 36 is attached to the main body 32. The heater 36 is disposed above the nozzle 34. The roller gear 38 </ b> A and the roller gear 38 </ b> B are provided in the main body portion 32. The roller gear 38A and the roller gear 38B are controlled by the control device 80. The roller gear 38A and the roller gear 38B are spaced apart from each other. The roller gear 38A and the roller gear 38B rotate by receiving a driving force of a third motor (not shown). The third motor is controlled by the control device 80. The thermoplastic resin 72 conveyed from the cartridge 70 passes between the roller gear 38A and the roller gear 38B. The thermoplastic resin 72 is conveyed to the nozzle 34 by the rotation of the roller gear 38A and the roller gear 38B.

  As shown in FIG. 1, the cartridge 70 is disposed on the upper wall 20 </ b> E of the housing 20. The arrangement location of the cartridge 70 is not particularly limited. The cartridge 70 contains a thermoplastic resin 72. The cartridge 70 is replaceable.

  The stage 50 holds the thermoplastic resin 72 discharged from the nozzle 34. As shown in FIG. 1, the stage 50 is disposed in the housing 20. The stage 50 is disposed below the modeling head 30. The stage 50 is provided on the bottom wall 20 </ b> C of the housing 20. The stage 50 is movably provided on a guide rail (not shown) provided in the housing 20. The stage 50 moves in the Y-axis direction under the driving force of a fourth motor (not shown). The stage 50 moves in the front-rear direction. The fourth motor is controlled by the control device 80.

  As shown in FIG. 2, the stage 50 includes a first member 51, a second member 61, and a third member 68. The third member 68 is connected to the first member 51 and the second member 61.

  As shown in FIG. 2, the first member 51 includes a first support portion 55 and a main body portion 56. The main body portion 56 is disposed below the first support portion 55 so as to be spaced apart. The body portion 56 is formed with a through hole 56H into which the third member 68 is inserted. The first support portion 55 includes a first modeling surface 52. The thermoplastic resin 72 (see FIG. 1) discharged from the nozzle 34 (see FIG. 1) is held on the first modeling surface 52. As shown in FIG. 3, the first modeling surface 52 includes a plurality of first holding surfaces 53. The first holding surface 53 is formed in a rectangular shape. The thermoplastic resin 72 discharged from the nozzle 34 is held on the first holding surface 53. As shown in FIG. 2, the first support portion 55 includes a first surface 54. The first surface 54 is located on the opposite side of the first support portion 55 from the first modeling surface 52 (first holding surface 53). The main body 56 includes a facing surface 57. The facing surface 57 faces the first support portion 55. The facing surface 57 faces the first surface 54. 3 indicates the first holding surface 53. In FIG.

  As shown in FIG. 2, the second member 61 includes a second support portion 65. The second support portion 65 is formed with a female screw portion 66 into which the third member 68 is inserted. The second support portion 65 includes a second modeling surface 62. The thermoplastic resin 72 (see FIG. 1) discharged from the nozzle 34 (see FIG. 1) is held on the second modeling surface 62. As shown in FIG. 3, the second modeling surface 62 is adjacent to the first modeling surface 52 in plan view. The second modeling surface 62 is composed of a plurality of second holding surfaces 63. The second holding surface 63 is formed in a rectangular shape. The thermoplastic resin 72 discharged from the nozzle 34 is held on the second holding surface 63. The plurality of second holding surfaces 63 and the plurality of first holding surfaces 53 are alternately arranged. As shown in FIG. 2, the second support portion 65 includes a second surface 64. The second surface 64 is located on the opposite side of the second support portion 65 from the second modeling surface 62 (second holding surface 63). When the vertical positions of the first modeling surface 52 and the second modeling surface 62 are the same, the vertical positions of the first surface 54 and the second surface 64 are the same. When the vertical positions of the first modeling surface 52 and the second modeling surface 62 are the same, the distance between the first surface 54 and the facing surface 57 is the same as the distance between the second surface 64 and the facing surface 57. is there. When the vertical positions of the first modeling surface 52 and the second modeling surface 62 are the same, the thermoplastic resin 72 is discharged from the nozzle 34 to the first modeling surface 52 and the second modeling surface 62. Note that the symbol B in FIG. 3 indicates the second holding surface 63.

  As shown in FIG. 2, the third member 68 is attached to the main body portion 56 of the first member 51. The third member 68 is rotatably attached to the main body portion 56 of the first member 51. The third member 68 rotates in response to a driving force of a fifth motor (not shown). The third member 68 may be configured to rotate manually. The third member 68 is a screw. The third member 68 includes a head portion 68A and leg portions 68B. The third member 68 is inserted into a through hole 56 </ b> H formed in the main body portion 56. The third member 68 is inserted into a female screw portion 66 formed in the second support portion 65. The leg portion 68B is inserted into the through hole 56H. The leg portion 68B is inserted into the female screw portion 66. A fixing member 68C is attached to the leg portion 68B. The fixing member 68C is attached to the main body portion 56 in the direction opposite to the head portion 68A. The fixing member 68 </ b> C is in contact with the facing surface 57 of the main body portion 56. The fixing member 68 </ b> C fixes the third member 68 to the main body portion 56. The leg portion 68B includes a male screw portion 68D. The male screw portion 68D is formed in a portion of the leg portion 68B that is inserted into the female screw portion 66 formed in the second support portion 65. The male screw portion 68D of the leg portion 68B meshes with the female screw portion 66 of the second support portion 65. The male screw portion 68D is not formed in a portion of the leg portion 68B that is inserted into the through hole 56H.

  As shown in FIG. 4, the third member 68 is configured to move the second member 61 downward when the third member 68 is rotated clockwise. The second member 61 moves downward as the third member 68 rotates. The third member 68 is configured to dispose the second modeling surface 62 below the first modeling surface 52 by rotating the third member 68 clockwise.

  As shown in FIG. 5, the third member 68 is configured to move the second member 61 upward when the third member 68 is rotated counterclockwise. The second member 61 moves upward as the third member 68 rotates. The third member 68 is configured to dispose the first modeling surface 52 below the second modeling surface 62 by rotating the third member 68 counterclockwise. The third member 68 moves the second member 61 upward when rotating the third member 68 clockwise, and moves the second member 61 when rotating the third member 68 counterclockwise. It may be moved downward.

  As shown in FIG. 6, the stage 50 includes a stopper 85. The stopper 85 is disposed between the first support portion 55 and the second support portion 65 and the main body portion 56. The stopper 85 is detachable. As shown in FIG. 7, the stopper 85 includes a central wall 85C, a right side wall 85R, and a left side wall 85L. The central wall 85C extends in the X-axis direction. The right side wall 85R and the left side wall 85L extend in the Y-axis direction. The central wall 85C is connected to the right side wall 85R and the left side wall 85L. The lengths of the central wall 85C, the right side wall 85R, and the left side wall 85L in the Z-axis direction are the same. As shown in FIG. 6, when the vertical positions of the first modeling surface 52 and the second modeling surface 62 are the same, the stopper 85 contacts the first surface 54, the second surface 64, and the facing surface 57. . That is, the central wall 85C, the right side wall 85R, and the left side wall 85L are in contact with the first surface 54, the second surface 64, and the facing surface 57.

  Next, an example of operation | movement of the three-dimensional modeling apparatus 10 of this embodiment is demonstrated. First, as shown in FIG. 6, a stopper 85 is disposed between the first support portion 55 and the second support portion 65 and the main body portion 56. When the stopper 85 cannot be disposed between the first support part 55 and the second support part 65 and the main body part 56, that is, when the stage 50 is in the state shown in FIG. By rotating counterclockwise, the stopper 85 is disposed between the first support portion 55 and the second support portion 65 and the main body portion 56. Then, the stopper 85 is brought into contact with the first surface 54, the second surface 64, and the facing surface 57 by rotating the third member 68 clockwise. Thereby, the position of the up-down direction of the 1st modeling surface 52 and the 2nd modeling surface 62 becomes the same.

  As shown in FIG. 8, when the vertical positions of the first modeling surface 52 and the second modeling surface 62 are the same, the nozzle 34 (see FIG. 1) changes the first modeling surface 52 and the second modeling surface 62. A thermoplastic resin 72 (see FIG. 1) is discharged, and a three-dimensional structure 75 is formed on the first modeling surface 52 and the second modeling surface 62. The three-dimensional structure 75 is fixed to the first modeling surface 52 and the second modeling surface 62. After the modeling of the three-dimensional structure 75 is completed, the stopper 85 is removed from the stage 50. If the vertical positions of the first modeling surface 52 and the second modeling surface 62 are the same, the first modeling surface 52 and the second modeling surface 62 are removed from the nozzle 34 with the stopper 85 removed from the stage 50. Alternatively, the thermoplastic resin 72 may be discharged.

  As shown in FIG. 9, when the third member 68 is rotated clockwise, the third member 68 moves the second member 61 downward. At this time, a force directed downward from the second modeling surface 62 is applied to the three-dimensional modeling object 75, but downward movement of the three-dimensional modeling object 75 is restricted by the first modeling surface 52. For this reason, only the second modeling surface 62 moves downward, and the three-dimensional modeling object 75 is peeled off from the second modeling surface 62.

  Next, as shown in FIG. 10, when the third member 68 is rotated counterclockwise, the third member 68 moves the second member 61 upward. At this time, a force in a direction directed upward from the second modeling surface 62 is applied to the three-dimensional model 75. For this reason, the three-dimensional structure 75 moves upward together with the second modeling surface 62, and the three-dimensional structure 75 is peeled off from the first modeling surface 52.

  In the above-described embodiment, first, the third member 68 is rotated clockwise to peel the three-dimensional structure 75 from the second modeling surface 62, and then the third member 68 is rotated counterclockwise. By rotating, the three-dimensional structure 75 is peeled off from the first modeling surface 52, but the present invention is not limited to this. That is, first, the third member 68 is rotated counterclockwise to peel the three-dimensional structure 75 from the first modeling surface 52, and then the third member 68 is rotated clockwise to rotate 3D. The three-dimensional structure 75 may be peeled off from the second modeling surface 62.

  As described above, according to the three-dimensional modeling apparatus 10, as shown in FIG. 9, the third member 68 moves the second member 61 downward, and moves the second modeling surface 62 below the first modeling surface 52. It is comprised so that it may arrange. For this reason, a force in a direction directed downward from the second modeling surface 62 is applied to the three-dimensional modeling object 75 formed on the first modeling surface 52 and the second modeling surface 62. At this time, the downward movement of the three-dimensional structure 75 is restricted by the first modeling surface 52. For this reason, only the second modeling surface 62 moves downward, and the three-dimensional modeling object 75 is peeled off from the second modeling surface 62. On the other hand, as shown in FIG. 10, the third member 68 is configured to move the second member 61 upward and dispose the first modeling surface 52 below the second modeling surface 62. For this reason, a force in a direction facing upward from the second modeling surface 62 is applied to the three-dimensional modeling object 75 formed on the first modeling surface 52 and the second modeling surface 62. For this reason, the three-dimensional structure 75 moves upward together with the second modeling surface 62, and the three-dimensional structure 75 is peeled off from the first modeling surface 52. As described above, when the three-dimensional structure 75 is peeled off from the first modeling surface 52 and the second modeling surface 62, the uniform force is applied to the three-dimensional structure from the first modeling surface 52 and the second modeling surface 62, respectively. Therefore, deformation and breakage of the three-dimensional structure 75 can be prevented. Further, the three-dimensional structure 75 can be easily peeled from the first modeling surface 52 and the second modeling surface 62 by moving the second member 61 in the vertical direction. The modeling of the three-dimensional structure 75 is performed when the first modeling surface 52 and the second modeling surface 62 of the stage 50 are flush with each other. That is, when the vertical positions of the first modeling surface 52 and the second modeling surface 62 are the same, the thermoplastic resin 72 is discharged from the nozzle 34 to the first modeling surface 52 and the second modeling surface 62. For this reason, when the surface of the stage 50 from which the thermoplastic resin 72 is discharged is uneven, it is possible to prevent the occurrence of a problem that the three-dimensional structure 75 to be modeled is partially displaced.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, as shown in FIG. 3, the plurality of first holding surfaces 53 and the plurality of second holding surfaces 63 are alternately arranged. Thereby, when the three-dimensional structure 75 is peeled from the first modeling surface 52 and the second modeling surface 62, the force applied to the three-dimensional structure 75 from the first modeling surface 52 and the second modeling surface 62 is dispersed. . For this reason, deformation and breakage of the three-dimensional structure 75 can be more reliably prevented.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, as shown in FIG. 6, when the vertical positions of the first modeling surface 52 and the second modeling surface 62 are the same, the first surface 54 and the second surface. The position of 64 in the vertical direction is the same, and the stopper 85 contacts the first surface 54, the second surface 64, and the facing surface 57. Thus, by arranging the stopper 85 between the first support portion 55 and the second support portion 65 and the main body portion 56, the vertical positions of the first modeling surface 52 and the second modeling surface 62 are the same. It becomes easy to make. Moreover, since the stopper 85 is detachable, when the three-dimensional structure 75 is peeled off from the first modeling surface 52 and the second modeling surface 62, the second member 61 moves upward and downward by removing the stopper 85. It becomes possible.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, as shown in FIG. 2, the third member 68 is a screw, and the second member 61 moves in the vertical direction as the third member 68 rotates. . As described above, the second member 61 can be moved upward and downward by a simple configuration in which the screw is rotated. That is, the relative positional relationship between the first modeling surface 52 and the second modeling surface 62 can be easily changed.

Second Embodiment
In the first embodiment, the case where a thermoplastic resin is used as the resin material has been described as an example. However, in the present embodiment, a case where a liquid photocurable resin is used will be described as an example. As shown in FIG. 11, the three-dimensional modeling apparatus 110 includes a table 111, a tank 112, a stage 50, an optical device 114, a case 125, and a control device 80.

  As shown in FIG. 11, the base 111 is supported by the case 125. An opening 121 is formed in the base 111. The opening 121 is a part through which light applied to the photocurable resin 123 passes. The shape of the opening 121 is not particularly limited. For example, the opening 121 is formed in a rectangular shape in plan view.

  As shown in FIG. 11, the tank 112 contains a liquid photocurable resin 123. The tank 112 is placed on the table 111. The tank 112 is arrange | positioned so that attachment to the base 111 is possible. The tank 112 is, for example, a container formed in a rectangular shape in plan view. The tank 112 covers the opening 121 of the table 111 when placed on the table 111. The tank 112 overlaps the opening 121 of the table 111 in plan view. The tank 112 is formed of a material that can transmit light, for example, a transparent resin material. An example of the transparent resin material is an acrylic resin.

  As shown in FIG. 11, the stage 50 is disposed above the tank 112. The stage 50 is disposed above the opening 121 of the table 111. The stage 50 is a member that can be raised and lowered. The stage 50 pulls up the photocurable resin 123 cured by irradiation with light from the projector 131 of the optical device 114 from the tank 112. The stage 50 is configured to be immersed in the photocurable resin 123 in the tank 112 when lowered. The stage 50 is configured to lift up the photocurable resin 123 that has been irradiated with light and cured when it is raised.

  As shown in FIG. 11, the stand 111 is provided with a column 141 extending in the vertical direction. A slider 142 is attached in front of the support post 141. The slider 142 can move up and down along the column 141 and moves upward or downward by the motor 143. The stage 50 is attached to the slider 142. As shown in FIG. 11, the stage 50 is moved upward or downward by the motor 143. The support post 141 indirectly supports the stage 50 through a slider 142 so as to be movable up and down. However, the column 141 may support the stage 50 directly.

  As shown in FIG. 12, the first member 51 of the stage 50 is attached to the slider 142. The main body portion 56 of the first member 51 is attached to the slider 142. The slider 142 is formed with a through hole 142H into which the third member 68 is inserted. The third member 68 is rotatably attached to the slider 142. The main body portion 56 is disposed so as to be spaced above the first support portion 55.

  The cured photocurable resin 123 is held on the first modeling surface 52 and the second modeling surface 62. The second modeling surface 62 is adjacent to the first modeling surface 52 in the bottom view. The stage 50 is configured to be immersed in the photocurable resin 123 in the tank 112 when the first modeling surface 52 and the second modeling surface 62 have the same vertical position.

  As shown in FIG. 11, the optical device 114 is disposed below the table 111. The optical device 114 is a device that irradiates the liquid photocurable resin 123 contained in the tank 112 with light having a predetermined wavelength. The optical device 114 includes a projector 131 and a mirror 132. The optical device 114 is accommodated in a case 125 provided below the table 111. The optical device 114 is supported by the case 125.

  As shown in FIG. 11, the projector 131 is an example of a light source that emits light. However, the light source of the optical device 114 is not limited to the projector 131. The projector 131 is disposed below the front part of the base 111. The projector 131 includes a lens 134. The lens 134 is disposed at the rear part of the projector 131. Light is emitted from the front to the rear through the lens 134. The light projecting direction of the projector 131 is not particularly limited.

  As shown in FIG. 11, the mirror 132 reflects the light from the projector 131 toward the tank 112. The mirror 132 is disposed below the opening 121 formed in the table 111. The light emitted from the projector 131 is reflected by the mirror 132 and applied to the photocurable resin 123 in the tank 112 through the opening 121 of the table 111. 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 131 passes through the opening 121. In the present embodiment, the light irradiation direction is adjusted by adjusting the position of the projector 131 prior to modeling the three-dimensional structure, but the light irradiation direction is adjusted by adjusting the angle of the mirror 132. You may adjust.

  The control device 80 is connected to a motor 143 that controls the slider 142 to which the stage 50 is attached to move up and down. The control device 80 controls the motor 143. The control device 80 drives the motor 143 to move the slider 142 and the stage 50 upward or downward. The control device 80 is connected to the projector 131 of the optical device 114. The control device 80 controls the projector 131 of the optical device 114. The control device 80 controls energy, light intensity, light amount, light wavelength band, light shape, light irradiation position, light emission timing, and the like emitted from the projector 131.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, as shown in FIG. 12, when the three-dimensional model 75 is peeled off from the first modeling surface 52 and the second modeling surface 62, the first modeling surface 52. In addition, since a uniform force is applied to the three-dimensional structure 75 from the second modeling surface 62, deformation and breakage of the three-dimensional structure 75 can be prevented. Further, the three-dimensional structure 75 can be easily peeled from the first modeling surface 52 and the second modeling surface 62 by moving the second member 61 in the vertical direction.

<Third Embodiment>
As shown in FIG. 13, the slider 142 includes a stopper 185. The stopper 185 is disposed between the first support portion 55 and the second support portion 65 and the main body portion 56. The stopper 185 is detachable. When the stopper 185 contacts the first surface 54 (see FIG. 2) and the second surface 64 (see FIG. 2) and the opposing surface 57 (see FIG. 2), the first modeling surface 52 (see FIG. 2) and the first surface 2 The vertical position of the modeling surface 62 (see FIG. 2) is the same.

<Fourth embodiment>
FIG. 14 is a plan view showing a stage 50 according to the fourth embodiment. As shown in FIG. 14, the first modeling surface 52 is composed of a single first holding surface 53. Four openings 52 </ b> X are formed in the first modeling surface 52. The second modeling surface 62 includes four second holding surfaces 63. The second holding surface 63 overlaps the opening 52 </ b> X formed in the first modeling surface 52. The plurality of second holding surfaces 63 are not adjacent to each other. The number of the 2nd modeling surface 62 is not specifically limited.

  According to the three-dimensional modeling apparatus 10 of the present embodiment, as shown in FIG. 14, the plurality of second holding surfaces 63 are not adjacent to each other. Thereby, when the three-dimensional structure 75 is peeled from the first modeling surface 52 and the second modeling surface 62, the force applied to the three-dimensional structure 75 from the first modeling surface 52 and the second modeling surface 62 is dispersed. . For this reason, deformation and breakage of the three-dimensional structure 75 can be more reliably prevented.

<Fifth Embodiment>
FIG. 15 is a plan view showing a stage 50 according to the fifth embodiment. As shown in FIG. 15, the first holding surface 53 and the second holding surface 63 are formed in a triangular shape. In the X-axis direction, the first holding surface 53 and the second holding surface 63 are alternately arranged. In the Y-axis direction, the first holding surfaces 53 are adjacent to each other. In the Y-axis direction, the second holding surfaces 63 are adjacent to each other.

<Sixth Embodiment>
FIG. 16 is a plan view showing a stage 50 according to the sixth embodiment. As shown in FIG. 16, the first holding surface 53 and the second holding surface 63 are formed in a rectangular shape. The first holding surface 53 and the second holding surface 63 extend in the X-axis direction. In the Y-axis direction, the first holding surface 53 and the second holding surface 63 are alternately arranged.

  In the embodiment described above, the vertical positions of the first modeling surface 52 and the second modeling surface 62 are determined by disposing the stopper 85 between the first support portion 55 and the second support portion 65 and the main body portion 56. Although it was the same, it is not limited to this. For example, a mark may be provided on the third member 68. In this case, when the third member 68 is rotated and the mark is at a predetermined position, the vertical positions of the first modeling surface 52 and the second modeling surface 62 may be the same.

50 Stage 51 First member 52 First modeling surface 53 First holding surface 61 Second member 62 Second modeling surface 63 Second holding surface 68 Third member 70 Cartridge 85 Stopper

Claims (6)

A three-dimensional modeling apparatus that molds a three-dimensional structure by sequentially curing a resin material and sequentially laminating a resin having a predetermined cross-sectional shape,
A modeling head equipped with a nozzle for discharging a resin material;
A stage disposed below the modeling head and holding the resin material discharged from the nozzle; and
The stage is
A first member having a first modeling surface on which the resin material discharged from the nozzle is held;
The resin material discharged from the nozzle is held, a second member having a second modeling surface adjacent to the first modeling surface in plan view;
A third member coupled to the first member and the second member;
When the vertical positions of the first modeling surface and the second modeling surface are the same, the resin material is discharged from the nozzle to the first modeling surface and the second modeling surface,
The third member moves the second member downward, disposes the second modeling surface below the first modeling surface, moves the second member upward, and moves the first modeling surface. Is a three-dimensional modeling apparatus configured to be disposed below the second modeling surface. A three-dimensional modeling apparatus that models a three-dimensional structure by curing a photocurable resin material and sequentially laminating a resin having a predetermined cross-sectional shape,
A tank containing a photocurable resin;
A table on which the tank is placed and has a light passage part that allows light to be applied to the photocurable resin to pass through;
An optical device disposed below the table, having at least a light source that emits light, and irradiating the light curable resin in the tank with light from the light source through the light passage unit;
A stage that is provided so as to be movable up and down above the tank, immerses in the photocurable resin in the tank when lowered, and lifts the photocurable resin cured by being irradiated with the light when rising, With
The stage is
A first member having a first modeling surface on which the cured photocurable resin is retained;
The cured photocurable resin is retained, and a second member having a second modeling surface adjacent to the first modeling surface in a bottom view;
A third member coupled to the first member and the second member;
The stage is immersed in the photocurable resin in the tank when the vertical positions of the first modeling surface and the second modeling surface are the same,
The third member moves the second member downward, disposes the second modeling surface below the first modeling surface, moves the second member upward, and moves the first modeling surface. Is a three-dimensional modeling apparatus configured to be disposed below the second modeling surface. The first modeling surface is composed of a plurality of first holding surfaces,
The second modeling surface is composed of a plurality of second holding surfaces,
The three-dimensional modeling apparatus according to claim 1, wherein the plurality of first holding surfaces and the plurality of second holding surfaces are alternately arranged. One of the first modeling surface and the second modeling surface is composed of a plurality of holding surfaces,
The three-dimensional modeling apparatus according to claim 1, wherein the plurality of holding surfaces are not adjacent to each other. The first member is arranged with a first support portion including the first modeling surface and a first surface located on the opposite side of the first modeling surface, and spaced above or below the first support portion. And a main body portion provided with a facing surface facing the first support portion,
The second member includes a second support portion including the second modeling surface and a second surface located on the opposite side of the second modeling surface,
The stage is disposed between the first support part and the second support part and the main body part, and includes a detachable stopper,
When the vertical positions of the first modeling surface and the second modeling surface are the same, the vertical positions of the first surface and the second surface are the same, and the stopper is the first surface. The three-dimensional modeling apparatus according to any one of claims 1 to 4, wherein the three-dimensional modeling apparatus is in contact with a surface, the second surface, and the facing surface. The third member is a screw;
The screw is rotatably fixed to the first member;
6. The three-dimensional modeling apparatus according to claim 1, wherein the second member includes an internal thread portion that engages with the screw, and moves in the vertical direction as the screw rotates.

Images