JP2014113759A - Three-dimensional contouring method and three-dimensional apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a three-dimensional contouring method and a three-dimensional apparatus each capable of improving the energy saving prospect and safety.SOLUTION: In a three-dimensional contouring method for forming a three-dimensional object having a desired shape, sets of information on the respective lengths and configuration order of a three-dimensional raw material 3 consisting of a solid and configured, in a case where a three-dimensional object scheduled to be contoured is zoned by zoning a three-dimensional space in a state where the respective zones exist as bar-shaped entities, at a site where the three-dimensional object of each zone exists and a support material 4 consisting of a solid and configured at a site where the three-dimensional object does not exist underneath the three-dimensional raw material 3 are generated, and after three-dimensional raw materials 3 and support materials 4 of specified lengths have been configured in a specified order within the respective zones on the basis of these sets of information, mutually adjacent three-dimensional raw materials 3 are joined while the support materials 4 are being removed.

Description

  The present invention relates to a three-dimensional modeling method and a three-dimensional modeling apparatus for modeling a three-dimensional object having a desired shape from a workpiece.

  Conventionally, as a three-dimensional modeling method for creating a three-dimensional shape of a three-dimensional model, a cutting RP (Rapid Prototyping) method, an optical modeling method, a hot melt lamination method, a powder modeling method, and the like are known. In the cutting RP method, a desired solid is formed by cutting or cutting a solid material that is easy to process, such as foamed polystyrene (for example, see Patent Document 1). The cutting RP method does not require a special material, but it is difficult to form a shape in which a space is formed below a solid to be formed, that is, a so-called undercut shape, and operation noise is high due to cutting. On the other hand, in the optical modeling method, the hot melt lamination method, and the powder modeling method, modeling is performed based on data of a cross-sectional group obtained by slicing a solid to be modeled into a plurality of layers. For this reason, the optical modeling method, the hot melt lamination method, and the powder modeling method have an advantage that an undercut shape, which has been difficult with the cutting RP method, can be easily modeled and the operation sound is small.

  In general, in the optical modeling method, the liquid surface of the liquid photocurable resin liquid is irradiated with an ultraviolet laser to cure the photocurable resin on the liquid surface portion to form a cured layer having one cross section. The hardened layer is placed on the modeling table, and this modeling table is lowered from the liquid level by the thickness of the previous hardened layer, and the liquid level is irradiated again with an ultraviolet laser to Laminate a new hardened layer. By repeating such an operation, a solid having a desired shape is formed. When modeling the undercut shape, the support material is also formed while being cured in each layer in order to support the solid from below, and finally the support material is removed.

  In the hot melt lamination method, a thermoplastic resin serving as a three-dimensional material is melted at a high temperature and extruded from the tip of a nozzle onto a modeling table little by little, and layer formation is repeated while sequentially heat-welding to form a desired solid. When modeling an undercut shape, the thermoplastic resin which becomes a support material in order to support a solid body from below is also extruded from another nozzle to form a layer, and finally the support material is removed. By forming a release layer between the solid body and the support material, the support material may be easily removed (see, for example, Patent Document 2).

  The powder molding method lays powder materials that are three-dimensional materials in layers, repeats layer formation while directly sintering by irradiating with a high-power laser beam, or adding a binder with an inkjet method to cure the powder. A desired solid is formed as a combination of materials. When modeling an undercut shape by a powder modeling method, a powder material will play the role of a support material. For this reason, a support material is unnecessary and the powder material which is not finally sintered should just be removed.

  However, in the optical modeling method, the hot melt lamination method, and the powder modeling method, in order to change the state of the three-dimensional material, it is necessary to install a laser irradiation device and a heating device, and the energy consumption during modeling is large. In addition, each of these methods often becomes high temperature due to heating, and is difficult to work safely. Furthermore, many three-dimensional materials (photo-curing resins) used in stereolithography are harmful and require careful handling, such as spilling when slanted due to liquids, which is also difficult to secure.

  This invention is made | formed in view of the above problem, The objective is to provide the three-dimensional modeling method and three-dimensional modeling apparatus which can aim at an energy saving and the improvement of safety | security.

  In order to solve the above-mentioned problems, the invention of claim 1 is a three-dimensional modeling method for forming a three-dimensional object having a desired shape, and divides a solid to be modeled by a section that divides a three-dimensional space so that each section has a rod shape. Information on the length and arrangement order of a solid material made of a solid placed in a place where a solid exists in each section and a support material made of a solid placed in a place below the solid material where a solid does not exist Based on this information, a solid material and a support material having a predetermined length are arranged in a predetermined order for each section, and then the support material is removed and adjacent solid materials are joined to each other.

  Since the present invention uses a solid three-dimensional material that does not require a state change, there is no need to install a laser irradiation device or a heating device, and there is an excellent effect that energy saving and safety can be improved.

1 is a perspective view of a main part showing a configuration of a stereoscopic image forming apparatus according to an embodiment. The perspective view which shows an example of a stacked body. The schematic diagram which shows the structure of the three-dimensional modeling apparatus provided with the nozzle. The perspective view which shows an example of a solid | solid. The perspective view which shows the principal part structure of a stacked body. The perspective view which shows the principal part structure of a stacked body. The perspective view explaining a removal adhesion process.

  Hereinafter, an embodiment in which the present invention is applied to a three-dimensional modeling method and a three-dimensional modeling apparatus will be described with reference to the drawings. FIG. 1 is a main part perspective view showing the configuration of the three-dimensional modeling apparatus according to this embodiment. The three-dimensional modeling apparatus according to the present embodiment includes a control unit that divides a solid to be modeled by a section that partitions a three-dimensional space so that each section has a rod shape. And this control part produces | generates the information of the length of the solid material arrange | positioned in the location where the solid in each division exists, and the support material arrange | positioned in the location where a solid does not exist under the solid material, and arrangement order It is characterized by.

  As shown in FIG. 1, the stereoscopic image forming apparatus according to the present embodiment is arranged above the modeling table 1 and the supply unit that supplies the three-dimensional material 3 and the support material 4 on the modeling table 1. 2 are provided. The supply unit 2 includes a three-dimensional material storage unit 5 that stores a rod-shaped three-dimensional material 3 and a support material storage unit 6 that stores a rod-shaped support material 4. The three-dimensional material 3 is arranged in a section where a solid to be shaped should exist. The support material 4 is arranged so as to support the three-dimensional material from below although there is no solid to be formed. And this support material 4 is comprised at least in part by a solid solution type adhesive, and a solution type adhesive recovers adhesiveness by melt | dissolving in solvents, such as water. The supply unit 2 can be moved in the direction of arrow X · X ′ (hereinafter simply referred to as X) and in the direction of arrow Y · Y ′ (hereinafter simply referred to as Y) by an input signal from a control unit (not shown). Is controlled. Here, the control unit divides the modeling table 1 into a lattice shape, and obtains position information (X and Y directions) of the sections, and information on the length and arrangement order of the three-dimensional material and support material in each section (Z direction). ing.

  The three-dimensional material storage unit 5 of the supply unit 2 includes a three-dimensional material injection port 5 a that stores the three-dimensional material 3 in a line in the X direction and injects the three-dimensional material 3 toward the modeling table 1. The three-dimensional material storage unit 5 includes a three-dimensional material supply roller 7 that feeds a predetermined amount of the three-dimensional material 3 one by one toward the three-dimensional material injection port 5a in a three-dimensional material injection path 5b that communicates with the three-dimensional material injection port 5a. Yes. The three-dimensional material outlet 5 a of the three-dimensional material storage unit 5 includes a three-dimensional material cutting member 8 that cuts the three-dimensional material 3 injected from the three-dimensional material injection port 5 a by the three-dimensional material supply roller 7 at a predetermined position. The three-dimensional material storage unit 5 has a bottom surface 5c inclined obliquely downward toward the three-dimensional material injection path 5b in order to move the stored three-dimensional material 3 by its own weight to the three-dimensional material injection path 5b.

  Similarly, the support material storage unit 6 of the supply unit 2 includes support material injection ports 6 a that store the support materials 4 in a line in the X direction and inject the support materials 4 toward the modeling table 1. . The support material storage unit 6 includes a support material supply roller 9 that feeds the support material 4 one by one toward the support material injection port 6a on the support material injection path 6b communicating with the support material injection port 6a. Yes. The support material injection port 6 a of the support material storage unit 6 includes a support material cutting member 10 that cuts the support material 4 injected from the support material injection port 6 a by the support material supply roller 9 at a predetermined position. The support material storage section 6 has a bottom surface 6c inclined obliquely downward toward the support material injection path 6b so that the support material 4 to be stored is moved by its own weight to the support material injection path 6b.

  The supply unit 2 configured in this manner cuts the three-dimensional material 3 and the support material 4 with a necessary length, and stacks the cut three-dimensional material 3 and the support material 4 on a predetermined section of the modeling table 1.

  The three-dimensional modeling apparatus having the above-described configuration operates as follows. First, a control part partitions the solid which should be modeled by the partition which divides three-dimensional space so that each partition may become rod shape, and obtains the positional information (X, Y direction) of a partition. And this control part is information on the length and arrangement order of the three-dimensional material 3 arranged at a place where a solid exists in each section and the support material 4 arranged below the three-dimensional material 3 at a place where a solid does not exist ( Z direction).

  And the supply unit 2 is piled up to a predetermined division in order from the solid material 3 or the support material 4 with the low height from the modeling stand 1 based on the information from a control part. For example, the supply unit 2 shown in FIG. 1 first moves in the X direction and the Y direction so that the support material injection port 6 a is above the section 1 </ b> A set on the modeling table 1. The sections 1A and 1A 'are sections in which the support material 4 having the smallest length is arranged in the first stage. Then, the supply unit 2 feeds the support material 4 in the support material storage unit 6 by a support material supply roller 9 by a predetermined length, cuts it by the support material cutting member 10, and cuts the cut support material 4 a of the modeling table 1. Stack on compartments 1A, 1A '. Similarly, the supply unit 2 stacks the supporting members 4 in the order of decreasing height in the other sections adjacent to the sections 1A and 1A '. Next, after the predetermined support material 4 is stacked, the supply unit 2 moves the three-dimensional material injection port 5a so as to come vertically above a predetermined section, for example, the section 1B adjacent to the section 1A. Then, the three-dimensional material 3 in the three-dimensional material storage unit 5 is sent out for a predetermined length by the three-dimensional material supply roller 7, cut by the three-dimensional material cutting member 8, and the cut three-dimensional material 3b is stacked on the section 1B. Similarly, the supply unit 2 stacks the three-dimensional materials 3 in the order of increasing height in the other sections adjacent to the sections 1B and 1B '. In this manner, the support material 4 or the three-dimensional material 3 is stacked in the descending order of the other sections of the modeling table 1.

  At this time, the supply unit 2 not only directly stacks the three-dimensional material 3 or the support material 4 on the section on the modeling table 1. The supply unit 2 stacks the three-dimensional material 3 or the support material 4 on the cut surface of the three-dimensional material 3 or the support material 4 previously stacked. In this way, the three-dimensional material 3 and the support material 4 are stacked for all the sections arranged in the XY direction. Thereby, for example, as shown in FIG. 2, a stack 11 is formed in which a three-dimensional material 3 stacked in a shape that bisects wine glasses in the Z direction and a support material 4 that supports the three-dimensional material 3 are stacked. The 1 shows an example in which the three-dimensional material 3 or the support material 4 is stacked while the supply unit 2 moves only in the X direction, but the three-dimensional material 3 is moved on all sections while moving in the X direction or the Y direction. Or it cannot be overemphasized that the support material 4 may be stacked in order with a short height.

  By the way, in the three-dimensional modeling apparatus and the three-dimensional modeling method according to the present embodiment, it is assumed that the rod-shaped three-dimensional material 3 and the rod-shaped support material 4 that are very small cut surfaces are stacked. Therefore, when the three-dimensional material 3 and the support material 4 are stacked, the three-dimensional material 3 and the support material 4 may be preliminarily bonded. For example, the three-dimensional modeling apparatus shown in FIG. 3 includes a nozzle 12 that is a liquid-liquid discharging unit that discharges droplets made of a solvent onto the cut surfaces of the three-dimensional material 3 and the support material 4. For example, the nozzle 12 is made of a solvent on the cut surface of the support material 4t after the support material 4t is stacked on a predetermined section on the modeling table 1 and before the solid material 3 is stacked on the support material 4t. A droplet 13 is discharged. The supply unit 2 stacks the three-dimensional material 3 on the cut surface of the support material 4t in which the droplets 13 are dropped and the adhesiveness is restored. Thereby, when stacking the three-dimensional material 3 and the support material 4, it becomes difficult to shift the position.

  Moreover, in the three-dimensional modeling apparatus and three-dimensional modeling method according to the present embodiment, as shown in FIGS. 1 and 3, the three-dimensional material 3 and the support material 4 are laminated on the modeling table 1 placed horizontally. ing. However, the present invention is not limited to this. For example, a modeling table formed in an L-shape may be installed obliquely from the horizontal direction, and the three-dimensional material and the support material may be stacked in order from the section located below. As a result, the three-dimensional material and the support material are supported not only by the cut surface but also by other members adjacent to the surface parallel to the stacking direction of the three-dimensional material (hereinafter referred to as the side surface), so that it is difficult to shift the position. Become.

  Next, the support material 4 is removed from the stacked body 11 of the three-dimensional material 3 and the support material 4 and the adjacent three-dimensional material 3 is bonded to each other. In this step, first, the stack 11 of the three-dimensional material 3 and the support material 4 is immersed in a solvent such as water. Thereby, the support material 4 is dissolved and removed in the solvent. Further, the support material 4 dissolved in the solvent penetrates between the three-dimensional material 3 and the three-dimensional material 3 by a capillary phenomenon, and bonds the three-dimensional material 3 to each other. Thereafter, by removing the stack only made of the three-dimensional material 3 from the solvent, for example, a wineglass-shaped stack 11 ′ as shown in FIG. 4 can be obtained.

  In the three-dimensional modeling apparatus and the three-dimensional modeling method according to the present embodiment, it is assumed that when the support material 4 is removed, positional displacement between the three-dimensional materials is likely to occur. Therefore, surface processing may be performed on the side surface of the three-dimensional material. For example, the three-dimensional material 14 shown in FIG. 5 has minute irregularities formed on the side surfaces formed in a substantially quadrangular prism shape. Thereby, the frictional force between the adjacent solid materials 14 increases, and it is possible to suppress the positional displacement of the solid materials 14 in the stacking direction or the direction intersecting the stacking direction during the removal of the support material 4. Further, the corners of the three-dimensional material 14 are chamfered. As a result, the support material 15 dissolved during the bonding process is easily immersed in the space between the three-dimensional materials 14 by a capillary phenomenon, and the three-dimensional materials 14 are easily bonded to each other.

  Further, the three-dimensional material 16 and the support material 17 shown in FIG. 6 have shapes in which the shapes of the side surfaces adjacent to each other can be fitted to each other. Thereby, the position shift to the direction which cross | intersects the stacking direction of the solid material 16 in an adhesion | attachment process can be prevented. Moreover, the surface area which adjacent solid material 16 contacts increases, the support material 17 melt | dissolved in the solvent becomes easy to osmose | permeate by a capillary phenomenon, and it becomes easy to adhere | attach the solid material 16.

  Moreover, when removing a support material, it is preferable to use a specific gravity close to the specific gravity of the three-dimensional material, more preferably a solvent having the same specific gravity, and gradually inject the solvent from below. For example, as shown in FIG. 7, after the stacked body 11 composed of the three-dimensional material 3 and the support material 4 is placed in the container 20, the solvent 21 is gradually introduced from the inlet 20 a provided below the side surface of the container 20. It is better to inject it. Thus, by using the solvent 21 having a specific gravity close to that of the three-dimensional material 3, it is possible to prevent the three-dimensional material 3 from being displaced in the stacking direction by its own weight during the bonding process. In addition, by gradually injecting the solvent 21 from below, it intersects with the stacking direction of the three-dimensional material 3 as compared with the case where it is immersed in the solvent 21 in an amount sufficient to immerse all the stacked bodies 11. Positional displacement in the direction can be prevented.

  A conventionally known material can be used as the three-dimensional material, the support material, and the solvent for dissolving the support material used in the present embodiment, and general-purpose mass-production materials that can be easily handled can be used. For example, by using cardboard cut to a partition size as a three-dimensional material, using starch paste as a support material, and using water as a solvent, a modeling operation can be performed easily and safely.

  Moreover, although the example which removes a support material by dissolving in a solvent was demonstrated in this embodiment, you may melt and remove a support material with a heat | fever. In this case, it is sufficiently possible to save energy by using a support material having a low melting point.

  The present invention is not limited to the three-dimensional supply device shown in FIGS. 1 to 7 and can be modified as appropriate. For example, in the present embodiment, an example in which the supply unit 2 is configured to be movable in the X and Y directions is illustrated. However, the present invention has a configuration in which the modeling table 1 and the supply unit 2 can change relative positions. I just need it. Further, in the present embodiment, an example in which the supply unit 2 stores both the three-dimensional material 3 and the support material 4 is illustrated. However, for example, the three-dimensional material and the support material are provided in the supply unit having an operation mechanism independent from each other. May be stored respectively. Further, in the present embodiment, the configuration in which the three-dimensional material 3 and the support material 4 are stored in a row and moved to the three-dimensional material injection path 5b and the support material injection path 6b by their own weight is illustrated. However, for example, the supply unit 2 may store the three-dimensional material and the support material in multiple rows, and includes a delivery mechanism that forcibly sends the three-dimensional material and the support material toward the injection port without depending on its own weight. May be.

What has been described above is merely an example, and the present invention has a specific effect for each of the following modes.
(Aspect A)
In a three-dimensional modeling method for forming a three-dimensional object having a desired shape, a solid to be modeled is divided by a section that divides a three-dimensional space so that each section has a rod shape, and is arranged at a place where a solid in each section exists. Information on the length and arrangement order of the three-dimensional material and the support material made of a solid arranged at a position where no solid exists below the three-dimensional material, and based on this information, a predetermined length for each section After arranging the three-dimensional material and the support material in a predetermined order, the support material is removed and the adjacent three-dimensional material is joined to each other.
According to this, as explained about the above-mentioned embodiment, the solid solid material which does not need to change a state is used. That is, there is no need to change the state of the three-dimensional material, such as solidifying the solid once and then solidifying it as in the case of stereolithography, such as solid from liquid, hot-melt lamination method or powder method. Therefore, unlike the conventional stereolithography method, powder method, and hot melt lamination method, it is not necessary to install a laser irradiation device or a heating device, and energy saving can be achieved. In addition, there is almost no heat generation during the modeling work, and it is possible to improve work safety. Furthermore, solid solid materials are easier to handle and have better safety than liquid three-dimensional materials such as photocurable resins. In the cutting RP method, a solid three-dimensional material that does not need to be changed in the same manner as in the present invention is used, but as described above, it is difficult to form an undercut shape and the operating sound is large. Become. On the other hand, according to the present invention, it is easy to form an undercut shape and the operating sound can be reduced.
(Aspect B)
In the three-dimensional modeling method of (Aspect A), the three-dimensional material and the support material are arranged in a predetermined order while being cut into a predetermined length.
According to this, as described in the above embodiment, the three-dimensional material and the support material are cut into necessary lengths and then arranged. Therefore, the number of processes is reduced and positional deviation is less likely to occur compared to the case where a plurality of three-dimensional materials and support materials cut into the minimum unit are arranged.
(Aspect C)
In the three-dimensional modeling method of (Aspect A) or (Aspect B), the support material containing at least a part of the solution-based adhesive is dissolved in a solvent, thereby removing the support material and joining the adjacent three-dimensional materials. To do.
According to this, as described in the above embodiment, a support material made of a solid solution adhesive is dissolved and used for joining three-dimensional materials. Therefore, unlike the conventional stereolithography method, powder method, and hot melt lamination method, it is not necessary to install a laser irradiation device or a heating device, and energy saving can be achieved.
(Aspect D)
(Aspect C) In the three-dimensional modeling method, when the three-dimensional material is arranged on the support material, the three-dimensional material is arranged after discharging the solvent on the support material.
According to this, as described in the above embodiment, when the three-dimensional material is arranged on the support material, the three-dimensional material and the support material are pre-joined, and the three-dimensional material and the support material are less likely to be misaligned. Become.
(Aspect E)
In the three-dimensional modeling method of (Aspect C) or (Aspect D), a solvent having the same specific gravity as that of the three-dimensional material is gradually injected into the container containing the three-dimensional material and the support material from the bottom of the container. Thus, the support material is removed and the adjacent three-dimensional material is joined.
According to this, as explained about the above-mentioned embodiment, when removing a support material, position shift of a solid material can be controlled.
(Aspect F)
In a three-dimensional modeling apparatus that forms a solid with a desired shape, a solid to be modeled by a section that divides a three-dimensional space so that each section becomes a rod shape, and is arranged at a place where a solid in each section exists And a generating means for generating information on the length and arrangement order of the solid material and a support material made of a solid disposed below the solid material at a location where the solid does not exist. After each of the three-dimensional material and the support material having a predetermined length are arranged in a predetermined order, the support material is removed and the adjacent three-dimensional materials are joined to each other.
According to this, as explained about the above-mentioned embodiment, the solid solid material which does not need to change a state is used. That is, there is no need to change the state of the three-dimensional material, such as solidifying the solid once and then solidifying it as in the case of stereolithography, such as solid from liquid, hot-melt lamination method or powder method. Therefore, unlike the conventional stereolithography method, powder method, and hot melt lamination method, it is not necessary to install a laser irradiation device or a heating device, and energy saving can be achieved. In addition, there is almost no heat generation during the modeling work, and it is possible to improve work safety. Furthermore, solid solid materials are easier to handle and have better safety than liquid three-dimensional materials such as photocurable resins.
(Aspect G)
The three-dimensional modeling apparatus according to (Aspect F) includes an arrangement unit that arranges the solid material and the support material in a predetermined order while cutting the solid material and the support material to a predetermined length.
According to this, as described in the above embodiment, the three-dimensional material and the support material are cut into necessary lengths and then arranged. Therefore, the number of processes is reduced and positional deviation is less likely to occur compared to the case where a plurality of three-dimensional materials and support materials cut into the minimum unit are arranged.
(Aspect H)
In the three-dimensional modeling apparatus according to (Aspect F) or (Aspect G), the support material includes at least a part of a solution-based adhesive that can be dissolved in a solvent, and is removed by dissolving in the solvent. Glue the above three-dimensional material.
A support material made of a solid solution adhesive is used for joining three-dimensional materials. Therefore, unlike the conventional stereolithography method, powder method, and hot melt lamination method, it is not necessary to install a laser irradiation device or a heating device, and energy saving can be achieved.
(Aspect I)
In the three-dimensional modeling apparatus according to (Aspect H), when the three-dimensional material is disposed on the support material, the three-dimensional modeling apparatus includes droplet discharge means for discharging a solvent on the support material.
According to this, as described in the above embodiment, when the three-dimensional material is arranged on the support material, the three-dimensional material and the support material are pre-joined, and the three-dimensional material and the support material are less likely to be misaligned. Become.
(Aspect J)
In the three-dimensional modeling apparatus according to (Aspect H) or (Aspect I), a solvent having the same specific gravity as that of the three-dimensional material is gradually injected into the container containing the three-dimensional material and the support material from the bottom of the container. .
According to this, as explained about the above-mentioned embodiment, when removing a support material, position shift of a solid material can be controlled.
(Aspect K)
(Aspect F) (Aspect G) (Aspect H) In the three-dimensional modeling apparatus of (Aspect I) or (Aspect J), minute unevenness is formed on the adjacent surface of another three-dimensional material.
According to this, as explained in the above embodiment, when the support material is removed, it is possible to suppress the positional deviation of the three-dimensional material.
(Aspect L)
(Aspect F) (Aspect G) (Aspect H) In the 3D modeling apparatus of (Aspect I) or (Aspect J), the three-dimensional material has a shape that can be fitted with another adjacent three-dimensional material or support material. .
According to this, as explained in the above embodiment, when the support material is removed, it is possible to suppress the positional deviation of the three-dimensional material.
(Aspect M)
(Aspect F) (Aspect G) (Aspect H) (Aspect I) (Aspect J) In the three-dimensional modeling apparatus of (Aspect K) or (Aspect L), the support material is a solution-based adhesive that is soluble in water. It is contained at least in part and is removed by dissolving in water.
According to this, as explained about the above-mentioned embodiment, it is not necessary to use a special solution for removing the support material or joining the three-dimensional materials, and use water having excellent versatility and safety. Can do.

DESCRIPTION OF SYMBOLS 1 Modeling table 2 Supply unit 3, 14, 16 Solid material 4, 15, 17 Support material 5 Solid material storage part 6 Support material storage part 7 Solid material supply roller 8 Solid material cutting member 9 Support material supply roller 10 Support material cutting member 11 Stack 12 Nozzle 13 Droplet 20 Container 21 Solvent

JP-A-9-216200 JP 9-24552 A

Claims (13)

In the three-dimensional modeling method for forming a solid with a desired shape,
A solid to be shaped is partitioned by a partition that divides the three-dimensional space so that each partition becomes a rod shape, and a solid material made of a solid placed in a place where a solid in each partition exists, and a solid below the solid material To generate information on the length and arrangement order of the support material made of solid arranged in a place where there is no
Based on this information, a solid material having a predetermined length for each section and a support material are arranged in a predetermined order, and then the support material is removed and adjacent solid materials are joined to each other. Modeling method. In the three-dimensional modeling method of Claim 1,
A three-dimensional modeling method, wherein the three-dimensional material and the support material are arranged in a predetermined order while being cut into a predetermined length. In the three-dimensional modeling method according to claim 1 or 2,
A three-dimensional modeling method, wherein a support material containing at least a part of a solution-based adhesive is dissolved in a solvent to remove the support material and to join the adjacent three-dimensional materials. In the three-dimensional modeling method of Claim 3,
When arranging the three-dimensional material on the support material, the three-dimensional modeling method is characterized by arranging the three-dimensional material after discharging the solvent onto the support material. In the three-dimensional modeling method according to claim 3 or 4,
The support material is removed by gradually injecting the solvent having the same specific gravity as the solid material into the container containing the solid material and the support material from the bottom of the container, and the adjacent solid material A three-dimensional modeling method characterized by joining the two. In a three-dimensional modeling apparatus that forms a solid with a desired shape,
A three-dimensional material made up of a solid that is to be shaped by a section that divides the three-dimensional space so that each section is in a rod shape, and is placed in a place where a solid in each section exists, and below the three-dimensional material and A generation means for generating information on the length and arrangement order of a support material made of a solid arranged in a place where a solid does not exist,
Based on this information, a solid material and a support material having a predetermined length are arranged in a predetermined order for each section, and then the support material is removed and the adjacent solid materials are joined to each other. 3D modeling device. The three-dimensional modeling apparatus according to claim 6,
A three-dimensional modeling apparatus, comprising: an arrangement unit that arranges the three-dimensional material and the support material in a predetermined order while cutting into a predetermined length. In the three-dimensional modeling apparatus of Claim 6 or 7,
The support material includes at least a part of a solution-based adhesive that can be dissolved in a solvent, is removed by dissolving in the solvent, and adheres the adjacent three-dimensional material. . The three-dimensional modeling apparatus according to claim 8,
A three-dimensional modeling apparatus comprising: a droplet discharge unit that discharges a solvent onto the support material when the solid material is disposed on the support material. In the three-dimensional modeling apparatus of Claim 8 or 9,
A three-dimensional modeling apparatus characterized by gradually injecting a solvent having the same specific gravity as that of the three-dimensional material into a container containing the three-dimensional material and the support material from the bottom of the container. In the three-dimensional modeling apparatus of Claim 6, 7, 8, 9, or 10,
The three-dimensional modeling apparatus, wherein the three-dimensional material has minute irregularities formed on adjacent surfaces of another three-dimensional material. In the three-dimensional modeling apparatus according to claim 6, 7, 8, 9, or 10,
The three-dimensional modeling apparatus, wherein the three-dimensional material has a shape that can be fitted with another adjacent three-dimensional material or support material. In the three-dimensional modeling apparatus according to claim 6, 7, 8, 9, 10, 11, or 12,
The three-dimensional modeling apparatus characterized in that the support material includes at least a part of a solution-based adhesive that is soluble in water, and is removed by dissolving in water, and the three-dimensional material is bonded.