JP2017030253A - Three-dimensional molding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide means for preventing reduction in accuracy of a three-dimensional molded object due to reduction in landing position accuracy of an uncured resin in the process of molding a three-dimensional object by discharging the uncured resin to a curing liquid accommodated in a container.SOLUTION: A three-dimensional molding apparatus includes: curing material supply means 113 for supplying a liquid curing material 102 and forming a curing material layer 102a; and molding material supply means 106 for discharging and supplying a molding material 107 to the curing material layer 102a. The apparatus forms a molded layer 108a that is a layer type molded object produced by solidifying the molding material 107 with the curing material 102 in the liquid curing material layer 102a.SELECTED DRAWING: Figure 1

Description

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

  As a three-dimensional modeling apparatus (three-dimensional modeling apparatus) for modeling a three-dimensional modeled object (three-dimensional modeled object), for example, one that models by a layered modeling method is known. In this method, a three-dimensional structure is formed by laminating layered objects (hereinafter also referred to as “modeling layer”).

  Conventionally, an uncured resin in a molten state is ejected from a head into a cooling liquid (curing liquid) such as water or oil in a container, and the three-dimensional object is formed by cooling and solidifying the uncured resin. Known (Patent Document 1).

Japanese Patent Laid-Open No. 08-20073

  By the way, when the uncured resin is discharged onto the surface of the curable liquid stored in the container, the liquid surface of the curable liquid is likely to shake, the landing position accuracy of the uncured resin is lowered, and the accuracy of the three-dimensional structure is increased. There is a problem that it takes a long time for modeling because it is necessary to wait for the modeling until the liquid level that is lowered or is shaken is stabilized.

  This invention is made | formed in view of said subject, and it aims at improving the precision of a three-dimensional molded item.

In order to solve the above problems, the three-dimensional modeling apparatus according to the present invention is:
A three-dimensional modeling apparatus that stacks layered modeling objects to model a three-dimensional modeling object,
A liquid curing material layer is formed, a modeling material is supplied to the curing material layer, and the layered modeling object in which the modeling material is solidified by the curing material of the curing material layer is provided. The configuration.

  According to the present invention, the accuracy of a three-dimensional model can be improved.

It is a typical explanatory view of the three-dimensional fabrication device concerning a 1st embodiment of the present invention. It is a typical explanatory view of the three-dimensional fabrication device concerning a 2nd embodiment of the present invention. It is a typical explanatory view of the three-dimensional fabrication device concerning a 3rd embodiment of the present invention. It is a typical explanatory view of the solid modeling device concerning a 4th embodiment of the present invention. It is typical explanatory drawing of the three-dimensional modeling apparatus which concerns on 5th Embodiment of this invention. It is a typical explanatory view of the three-dimensional fabrication device concerning a 6th embodiment of the present invention. It is explanatory drawing with which it uses for description of an effect | action of the support part in each embodiment. It is explanatory drawing with which explanation of other support parts is offered. It is typical explanatory drawing of the three-dimensional modeling apparatus which concerns on 7th Embodiment of this invention. It is a typical explanatory view of the three-dimensional fabrication device concerning an 8th embodiment of the present invention. It is typical explanatory drawing of the three-dimensional modeling apparatus which concerns on 9th Embodiment of this invention. It is typical explanatory drawing with which it uses for description of the formation process of the hardening material layer in the three-dimensional model | molding apparatus which concerns on 10th Embodiment of this invention. FIG. 13 is a schematic explanatory diagram for explaining the process following FIG. 12. FIG. 14 is a schematic explanatory diagram for explaining a process following the step in FIG. 13.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. A first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic explanatory view of the three-dimensional modeling apparatus according to the embodiment.

  This three-dimensional modeling apparatus includes a modeling tank 101 in which a three-dimensional model 108 is modeled. In the modeling tank 101, a modeling stage 104 on which a three-dimensional modeled object (layered modeled object) 108 is modeled is disposed so as to be movable up and down. The modeling stage 104 is moved up and down by an actuator 103 disposed outside the modeling tank 101.

  Above the modeling tank 101, a curing material supply unit 113, a modeling material supply unit 106, and a support material supply unit 112 are arranged.

  The curing material supply unit 113 is a unit that drops and supplies the liquid curing material (including a curing agent) 102. The modeling material supply unit 106 discharges and supplies a modeling material (including a modeling agent) 107 solidified by the curing material 102. The support material supply unit 112 is a unit that discharges and supplies a support material (including a support agent) 110 that is solidified by the curing material 102.

  The liquid curing material 102 is supplied to the surface of the modeling stage 104 by dropping the liquid curing material 102 onto the surface of the modeling stage 104 or the surface of the existing modeling layer 108a by the curing material supply unit 113. A hardened material layer 102a is formed which is wet and spreads on the surface of the existing modeling layer 108a to form a thin film.

  That is, the curing material supply means 113 constitutes a means for supplying a liquid curing material.

  By discharging the modeling material 107 to a required position of the curing material layer 102a by the modeling material supply means 106, the modeling material 107 is solidified by the curing material 102 of the curing material layer 102a, and the modeling layer 108a which is a layered modeling object is formed. It is formed.

  That is, the modeling material supply means 106 constitutes a means for supplying a modeling material to the liquid cured material layer. In this embodiment, the temperature of the curing material 102 (modeling material layer 102a) is lower than the freezing point of the modeling material 107, and the modeling material 107 is cooled and solidified by the curing material 102 by landing on the curing material layer 102a. Layer 108a is formed.

  By discharging the support material 110 to a required position of the cured material layer 102a by the support material supply means 112, the support material 110 is solidified by the cured material 102 of the cured material layer 102a, and a layered support layer 111a is formed. .

  That is, the support material supply means 112 constitutes means for supplying a support material to the hardened material layer. In the present embodiment, the temperature of the curing material 102 (modeling material layer 102a) is lower than the freezing point of the support material 110, and the support material 110 is cooled and solidified by the curing material 102 by landing on the curing material layer 102a. Layer 111a is formed.

  In this embodiment, the support material 110 is supplied by the support material supply means 112 to form the support layer 111a, and the support layer 111a supports the overhang portion of the modeling layer 108a by the support layer 111a, or the three-dimensional model to be modeled. A support portion 111 that comprehensively supports 108 is formed.

  Here, the curing material supply unit 113, the modeling material supply unit 106, and the support material supply unit 112 are held by a drive shaft member 121 arranged in a direction along the surface of the modeling stage 104 of the modeling tank 101.

  The drive shaft member 121 is rotationally driven by the actuator 105, so that the curing material supply unit 113, the modeling material supply unit 106, and the support material supply unit 112 are reciprocated along the surface of the modeling stage 104. In addition, the moving scanning mechanism of the hardening material supply means 113, the modeling material supply means 106, and the support material supply means 112 is not restricted to this.

  Lifting and lowering of the modeling stage 104 by the actuator 103, reciprocation of the curing material supply means 113, modeling material supply means 106 and support material supply means 112 by the actuator 105, supply control of the curing material 102 by the curing material supply means 113, modeling material supply means The control device 109 performs supply control of the modeling material 107 by 106, supply control of the support material 110 by the support material supply unit 112, and the like.

  Further, the curing material supply unit 113 is disposed on both sides of the modeling material supply unit 106 and the support material supply unit 112.

  Thereby, even when the modeling material supply unit 106 moves in any direction, the curing material 102 can be supplied prior to the supply of the modeling material 107 by the modeling material supply unit 106.

  Note that the curing material supply unit 113 can be configured by a line of dispensers, a liquid discharge head, or the like. Moreover, it can also be set as the mechanism which apply | coats the hardening material 102 to the surface, making the brush-shaped front-end | tip part which supplies the hardening material 102 contact the modeling layer 108a.

  Further, the modeling material supply unit 106 and the support material supply unit 112 can be configured by a liquid discharge head or a dispenser. Further, when using the liquid ejection head, different nozzle arrays arranged in the same head can be used as the modeling material supply unit 106 and the support material supply unit 112, respectively.

  Here, the curing material 102 has a property of cooling and solidifying the modeling material 107 and curing, and the modeling material 107 cured by the curing material 102 has a property of softening due to phase change. Preferably, the curing material 102 is a solidified material that cools and solidifies the modeling material 107 to a temperature equal to or lower than the freezing point of the modeling material 107, and the modeling material 107 solidified by the curing material 102 is softened as the temperature rises.

  The curing material 102 is a liquid in which the concentration is adjusted so that the freezing point is lower than the freezing point of the modeling material 107, the temperature is lower than the freezing point of the modeling material 107, and the temperature is controlled higher than the freezing point of the curing material 102. For example, a cooled glycerin aqueous solution can be used. Further, as the curing material 102, a liquid having a boiling point lower than the freezing point of the modeling material 107, for example, liquid nitrogen can be used. Further, a gas having a temperature lower than the freezing point of the modeling material 107, for example, a cooling carbon dioxide gas can be used.

  In other words, when the melting point or glass transition point of the three-dimensional structure is the temperature T [° C.], the temperature T is a temperature lower than the modeling environment or the use environment temperature of the three-dimensional structure, and the curing material is below the temperature T. It is a substance having a cooled freezing point lower than the temperature T or a substance having a boiling point equal to or lower than the temperature T.

  The support material 110 has a property of being cooled and solidified by the curing material 102 and has a physical property that can be separated from the three-dimensional structure 108. For example, if the three-dimensional model 108 is a member that does not dissolve in water, alcohol, or the like, the support material 110 uses a member that dissolves in water, alcohol, or the like, or a member that includes a release material that can be separated by applying physical force. To do.

  As the support material 110, a member having a melting point lower than the melting point of the modeling layer 108a or the three-dimensional model 108 or the temperature of the glass transition point can be used. Thereby, only the support layer 111a can be easily removed by heating at the melting point temperature of the support material 110.

  For example, by using water or a liquid containing water as a main component as the support material 110, the support layer 111a can be melted and removed by heating at several degrees Celsius.

  Next, the modeling operation by this three-dimensional modeling apparatus will be described.

  When performing modeling with this apparatus, the curing material 102 is dropped on the surface of the modeling stage 104 by the curing material supply means 113, and a thin film-shaped curing material layer 102 a in which the curing material 102 spreads on the surface of the modeling stage 104 is formed. .

  Then, the modeling material supply unit 106 and the support material supply unit 112 are moved, and the modeling material 107 or the support material 110 is discharged and supplied to a required position of the cured material layer 102a.

  The modeling material 107 discharged and landed at a desired position of the hardened material layer 102a is immediately solidified (cooled and solidified) by the hardened material 102, whereby a modeling layer 108a having a target shape is formed. Similarly, the support material 110 discharged and landed at a desired position of the hardened material layer 102a is immediately solidified (cooled and solidified) by the hardened material 102, thereby forming a support layer 111a having a target shape.

  As a result, the first modeling layer 108 a and the support layer 111 a are formed on the surface of the modeling stage 104.

  Thereafter, the curing material 102 is dropped on the surfaces of the first modeling layer 108a and the support layer 111a by the curing material supply means 113, and the curing material layer 102a is formed on the surfaces of the first modeling layer 108a and the support layer 111a. Form.

  Then, similarly to the first layer, the modeling material supply means 106 and the support material supply means 112 are moved, and the modeling material 107 or the support material 110 is discharged and supplied to a required position of the cured material layer 102a. The eye modeling layer 108a and the support layer 111a are formed.

  By repeating this operation, the three-dimensional model 108 in which the modeling layer 108a is stacked on the modeling stage 104 is modeled, and the support part 111 in which the support layer 111a is stacked is formed.

  The modeling data for forming the modeling layer 108a is given to the control device 109 as slice data obtained by slicing the three-dimensional model 108 to be modeled, and the control device 109 controls the position and supply (discharge) of the modeling material supply means 106 according to the modeling data. By doing so, the modeling layer 108a according to modeling data is formed.

  The modeling data for forming the support layer 111a is also given as slice data in the same manner as the modeling data of the modeling layer 108a, and the control device 109 controls the position and supply of the support material supply unit 112, thereby forming the support layer 111a. The

  In this way, a liquid cured material layer is formed, and a modeling material solidified with the curing material is supplied to the liquid cured material layer to form a layered modeled object, thereby forming a highly accurate three-dimensional modeled object. be able to.

  In addition, by forming a curing material layer and discharging (supplying) the modeling material to the curing material layer, the boiling point of the curing material is equal to or lower than the temperature of the modeling material (a condition in which rapid boiling occurs) However, since the thickness of the hardened material layer (thickness of the liquid film) is thin, rapid boiling does not occur. Also in this respect, the accuracy of the layered object is increased, and a highly accurate three-dimensional object can be formed.

  Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a schematic explanatory view of the three-dimensional modeling apparatus according to the embodiment.

  In the present embodiment, the modeling stage 104 includes an ultrasonic vibrator 122 that is a means for applying vibration to the hardened material layer 102a. The ultrasonic transducer 122 is driven by the control device 109. By driving the ultrasonic transducer 122, vibration can be applied to the hardened material layer 102a via the modeling stage 104.

  By operating the ultrasonic vibrator 122 and applying ultrasonic vibration to the hardening material layer 102a on the modeling stage 104, fine bubbles are generated in the hardening material layer 102a.

  Thus, overheating hardly occurs in the hardened material layer 102a, and when the modeling material 107 is landed on the hardened material 102 having a low boiling point, it is possible to prevent a sudden boiling.

  Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 3 is a schematic explanatory view of the three-dimensional modeling apparatus according to the embodiment.

  In the present embodiment, the modeling material supply unit 106 and the support material supply unit 112 are held by the drive shaft member 121 as in the first embodiment.

  On the other hand, the hardener supply means 113 is held by a drive shaft member 123 disposed in a direction along the surface of the modeling stage 104 of the modeling tank 101, and is reciprocated as the drive shaft member 123 is rotationally driven by the actuator 115. The The actuator 115 is driven and controlled by the control device 109. That is, the hardening material supply means 113 can be moved independently of the modeling material supply means 106 and the support material supply means 112.

  In this apparatus, the actuator 115 is driven and controlled to move the curing material supply means 113 to a required position, and the curing material supply means 113 cures the surface of the modeling stage 104 or the surfaces of the modeling layer 108a and the support layer 111a. The material 102 is dropped to form the hardened material layer 112a.

  Then, the actuator 105 is driven and controlled to move the modeling material supply unit 106 and the support material supply unit 112 to the required positions, and the modeling material supply unit 106 and the support material supply unit 112 use the modeling stage 104 surface or the modeling layer. The modeling material 107 and the support material 110 are supplied to the hardened material layer 112a on the surface of 108a and the support layer 111a.

  For example, the home position of the curing material supply unit 113 is the left end in FIG. 3, and the home position of the modeling material supply unit 106 and the support material supply unit 112 is the right end in FIG. After the hardener supply means 113 is reciprocated to the right and left, the modeling material supply means 106 and the support material supply means 112 are reciprocated to the left and right.

  The modeling material 107 supplied and supplied to the desired position of the hardened material layer 102a is immediately solidified (cooled and solidified) by the hardened material 102, thereby forming a modeling layer 108a having a target shape. Similarly, the support material 110 supplied to a desired position of the curing material layer 102a is immediately solidified (cooled and solidified) by the curing material 102, whereby the support layer 111a having a target shape is formed.

  Next, a fourth embodiment of the present invention will be described with reference to FIG. FIG. 4 is a schematic explanatory view of the three-dimensional modeling apparatus according to the embodiment.

  In the present embodiment, the modeling stage 104 is fixedly arranged in the modeling tank 101.

  On the other hand, the actuator 105 is held by a drive shaft member 124 arranged in the vertical direction, and is moved up and down (moved in the height direction) when the drive shaft member 124 is rotationally driven by the actuator 116. As the actuator 105 moves up and down, the modeling material supply unit 106 and the support material supply unit 112 move up and down with respect to the modeling stage 104.

  Further, the actuator 105 is provided with a curing material supply means 113 that supplies the curing material 102 from a direction along the surface of the modeling layer 108a. As a result, the hardening material supply means 113 also moves up and down in conjunction with the modeling material supply means 106 and the support material supply means 112 as the actuator 105 moves up and down.

  Further, by supplying the curing material 102 from the direction along the surface of the modeling layer 108a, the curing material 102 is easily layered (thinned) on the surface of the modeling stage 104 or the surfaces of the modeling layer 108a and the support layer 111a. .

  When modeling with this apparatus, the actuator 115 is driven and controlled to move the curing material supply means 113 to a required position, and the curing material supply means 113 causes the modeling stage 104 surface (first layer) or modeling layer 108a. In addition, the curing material 102 is supplied onto the surface of the support layer 111a (second and subsequent layers).

  Then, the modeling material 107 and the support material 110 are placed on the surface of the modeling stage 104 or the cured material layer 102a on the surface of the modeling layer 108a and the support layer 111a by the modeling material supply means 106 and the support material supply means 112. Discharge and supply.

  The modeling material 107 that has landed at a desired position of the curable material layer 102a is immediately solidified (cooled and solidified) by the curable material 102, so that a modeling layer 108a having a target shape is formed. Similarly, the support material 110 injected into a desired position of the curing material layer 102a is immediately solidified (cooled and solidified) by the curing material 102, whereby the support layer 111a having a target shape is formed.

  Then, after the target modeling layer 108a and the support layer 111a are formed, the actuator 116 is driven, and the modeling stage is provided for one modeling layer, the curing material supply unit 113, the modeling material supply unit 106, and the support material. The supply means 112 is raised.

  Thereafter, by supplying the curing material 102, the modeling material 107, and the support material 110 and repeating the modeling of the next modeling layer 108a and the support layer 111a, the three-dimensional modeled object 108 and the support part 111 are modeled. The

  Next, a fifth embodiment of the present invention will be described with reference to FIG. FIG. 5 is a schematic explanatory view of the three-dimensional modeling apparatus according to the embodiment.

  In this embodiment, the hardening material supply means 113 is fixedly arranged on the upper part of the modeling tank 101, and supplies the hardening material 102 from the direction along the surface of the modeling layer 108a. By supplying the curing material 102 from the direction along the surface of the modeling layer 108a, the curing material 102 flows on the surface of the modeling stage 104 or the surface of the modeling layer 108a to form the curing material layer 102a.

  On the other hand, similarly to the first embodiment, the modeling stage 104 is arranged to be movable up and down, and the modeling material supply means 106 and the support material supply means 112 are arranged to be movable in a direction along the surface of the modeling stage 104.

  When performing modeling with this apparatus, the modeling stage 104 is raised to a position where the curing material 102 for forming one layer of the curing material layer 102 a is supplied from the curing material supply means 113 to the surface of the modeling stage 104. And the hardening material 102 is supplied to the surface of the modeling stage 104 from the hardening material supply means 113, and the hardening material layer 102a is formed.

  Thereafter, the modeling material supply unit 106 and the support material supply unit 112 are moved, and the modeling material 107 and the support material 110 are discharged and supplied to the cured material layer 102a.

  The modeling material 107 discharged to a desired position of the curable material layer 102a is immediately solidified (cooled and solidified) by the curable material 102, thereby forming a modeling layer 108a having a target shape. Similarly, the support material 110 discharged to a desired position of the cured material layer 102a is immediately solidified (cooled and solidified) by the cured material 102, whereby the support layer 111a having a target shape is formed.

  After forming the first modeling layer 108a and the support layer 111a, the modeling stage 104 is lowered by one layer, and the curing material 102 is placed on the surfaces of the first modeling layer 108a and the support layer 111a by the curing material supply means 113. Then, the hardened material layer 102a is formed.

  The modeling material supply unit 106 and the support material supply unit 112 are moved, and the modeling material 107 and the support material 110 are discharged and supplied to the cured material layer 102a to form the second modeling layer 108a and the support layer 111a. To do. Thereafter, the same operation is repeated to form the three-dimensional structure 108 and the support unit 111.

  Thus, since the means for supplying the curing material does not move, a simple mechanism can be obtained.

  Next, a sixth embodiment of the present invention will be described with reference to FIG. FIG. 6 is a schematic explanatory view of the three-dimensional modeling apparatus according to the embodiment.

  In this embodiment, the cold air 102A is used as the curing material. By ejecting the cold air 102A from the hardener supply means 113A, the hard material layer 102a can be formed by supplying cold air from the position away from the modeling layer 108a to the surfaces of the existing modeling layer 108a and the support layer 111a. it can. That is, the hardener supply means 113 is arranged farther from the formation region of the modeling layer 108a than in the fifth embodiment.

  The other modeling steps are the same as in the fifth embodiment.

  As a result, the hardening material supply means 113 does not move, so that a simple mechanism can be obtained, and the hardening material supply means 113 can be separated from the formation region of the modeling layer 108a, so that the modeling material supply means 106, the support material supply means The reciprocation of 112 is not hindered, and the degree of freedom in design is improved.

  Next, the operation of the support portion in each of the above embodiments will be described with reference to FIGS. FIG. 7 is an explanatory diagram for explaining the operation of the support unit in the embodiment, and FIG. 8 is an explanatory diagram for explaining another support unit.

  As shown in FIG. 7, in each of the above embodiments, the support layer 111 a is formed together with the modeling layer 108 a constituting the three-dimensional model 108. That is, the support portion 111 that includes the three-dimensional structure 108 by forming the support layer 111a for each modeling layer 108a including the lower side of the overhang portion 602 of the modeling layer 108a, the side surface portion 603, and the upper surface portion 604. Is forming.

  In this case, the support material is a material that maintains the original shape even at a temperature at which the modeling layer 108a can be bonded. After the three-dimensional structure 108 is controlled to a temperature at which the modeling layer 108a can be bonded, and the modeling layer 108a is bonded, the support portion 111 is removed.

  On the other hand, as shown in FIG. 8, the support part 111 can be configured to form the support layer 111a only below the overhang part 602 of the modeling layer 108a.

  Here, when the modeling material has a high curing temperature or is a cell or the like, since it is not bonded unless the temperature is not lower than a certain temperature, the shape of the unsupported portion is broken when the temperature is returned to room temperature. In this case, by forming the comprehensive support portion 111 described in each embodiment shown in FIG. 7, even when the three-dimensional object 108 is formed with a material that is not bonded at a low temperature, it is supported by the support portion 111. It can be returned to room temperature while being bonded.

  Next, a method for thawing a three-dimensional model will be described.

  It is preferable to perform thawing and bonding of the three-dimensional modeled object 108 and removal of the support portion (layer) while gradually thawing or heating control gradually from the upper side in the direction of gravity.

  As a result, the support part (layer) can be removed while bonding even with materials that do not bond at low temperatures, and the support part supports the modeled object in the unbonded part, so that the three-dimensional modeling is performed while maintaining a stable state for a long time Thaw and combine objects.

  Next, a seventh embodiment of the present invention will be described with reference to FIG. FIG. 9 is a schematic explanatory view of the three-dimensional modeling apparatus according to the embodiment.

  Above the modeling tank 101, a temperature controller 118, which is a heating unit that generates a heat source such as warm air or infrared rays controlled in temperature and heats the three-dimensional model 108, is disposed.

  The modeling stage 104 can be moved up and down by the actuator 103, and can raise the three-dimensional model 108 immersed in the curing material 102. The modeling stage 104 and the actuator 103 constitute means for raising the three-dimensional model 108.

  In this embodiment, the three-dimensional object 108 and the support part 111 are heated by the temperature controller 118 which is a heating unit while being gradually raised, and the three-dimensional object 108 and the support part 111 are thawed or combined.

  That is, after the three-dimensional object 108 and the upper part of the support part 111 are thawed or combined by the temperature controller 118, the modeling stage 104 is further raised by the actuator 103, and the parts that have not been thawed or combined yet are heated to be thawed or combined. Let By repeating this operation, the three-dimensional object 108 and the entire support unit 111 are thawed or combined.

  In this way, the three-dimensional modeled object can be thawed or combined without losing support on the way by sequentially thawing or combining the modeled three-dimensional modeled object from the upper part toward the lower part. On the other hand, if the three-dimensional object 108 and the entire support unit 111 are heated at the same time, the shape of the three-dimensional object 108 is broken by thawing or bonding progressing from the surface and losing the support.

  In addition, when the shape of the three-dimensional model is a shape in which the width in the direction orthogonal to the stacking direction is widened or narrowed, the time required for thawing or bonding (thawing or bonding speed) varies depending on the part. Therefore, when heating and thawing or bonding a wide part, the rate of raising the modeling stage is slower than when heating and thawing or combining a narrow part, or until the modeling stage is raised. Increase the waiting time.

  As described above, it is preferable to control the rising speed or timing of the modeling stage in accordance with the time required for thawing or combining. The rising speed of the modeling stage or the waiting time until it is raised can be calculated from the area of the slice data and the degree of clogging.

  Next, an eighth embodiment of the present invention will be described with reference to FIG. FIG. 10 is a schematic explanatory view of the three-dimensional modeling apparatus according to the embodiment.

  The present embodiment is an example in which the support material supply means 112 for supplying the support material in the first embodiment is not provided.

  That is, when the three-dimensional model 108 to be modeled has a shape in which the upper modeling layer 108a is entirely included in the lower modeling layer 108b in the stacking direction, the three-dimensional model 108 can be formed without forming a support portion using a support material. Modeling can be performed.

  Next, a ninth embodiment of the present invention will be described with reference to FIG. FIG. 11 is a schematic explanatory diagram of the three-dimensional modeling apparatus according to the embodiment.

  In the present embodiment, a modeling material supply unit 206, a support material supply unit 212, and a curing material supply unit 213 are arranged above the modeling tank 101.

  The modeling material supply unit 206 discharges and supplies a liquid modeling material (including a modeling agent) 207. The curing material supply unit 213 is a unit that discharges and supplies a liquid curing material (including a curing agent) 202 that solidifies the liquid modeling material 207. The support material supply unit 212 is a unit that discharges and supplies a support material (including a support agent) 210 that is solidified by the curing material 202.

  The liquid modeling material 207 is supplied to the surface of the modeling stage 104 by dropping the liquid modeling material 207 onto the surface of the modeling stage 104 or the surface of the existing modeling layer 108a by the modeling material supply means 206, or A thin modeling material layer 207a is formed by spreading on the surface of the existing modeling layer 108a. That is, the modeling material supply means 206 constitutes a means for supplying a liquid modeling material.

  By discharging the curing material 202 to a required position of the modeling material layer 207a by the curing material supply means 213, the modeling material 207 of the modeling material layer 207a is solidified by the curing material 202, and the modeling layer 108a that is a layered modeling object is formed. It is formed. That is, the hardening material supply means 213 constitutes a means for supplying the hardening material to the modeling material layer.

  By discharging the support material 210 to a required position of the modeling material layer 207a by the support material supply unit 212, the support material 210 solidifies the modeling material 207 of the modeling material layer 207a, and the layered support layer 211a is formed. . That is, the support material supply means 212 constitutes means for supplying a support material to the modeling material layer.

  In this embodiment, the curing material 202 is discharged to a required position of the modeling material layer 207a to solidify the modeling material 207 of the modeling material layer 207a, thereby repeatedly forming the modeling layer 108a of the target shape, A three-dimensional model 108 is formed (modeled). Further, the support member 111 is repeatedly formed by discharging the support material 210 to a required position of the modeling material layer 207a and solidifying the modeling material 207 of the modeling material layer 207a, thereby forming the support layer 111a having the target shape. Is formed (modeled).

  Next, a tenth embodiment of the present invention will be described with reference to FIGS. FIG. 12 thru | or FIG. 14 is typical explanatory drawing with which it uses for description of the formation process of the hardening material layer in the three-dimensional model | molding apparatus based on the embodiment.

  In the present embodiment, a liquid curing material 102 is accommodated in the modeling tank 101. In the modeling tank 101, a modeling stage 104 on which the three-dimensional model 108 is modeled is disposed so as to be able to be moved up and down. The modeling stage 104 is moved up and down by an actuator 103 disposed outside the modeling tank 101. The modeling layer 103 is layered and modeled on the modeling stage 104.

  The forming process of the hardening material layer 102a in the present embodiment will be described. The modeling stage 104 is lowered from the state shown in FIG. 12 in which the hardening material 102 is not present on the surfaces of the modeling layer 108a and the support layer 111a.

  And as shown in FIG. 13, the surface of the modeling layer 108a and the support layer 111a is immersed in the liquid hardening | curing material 102. FIG. Thereafter, as shown in FIG. 14, the modeling stage 104 is raised so that the surfaces of the modeling layer 108 a and the support layer 111 a come out of the hardened material 102. Thereby, the thin-film-shaped hardening material layer 102a is formed in the surface of the modeling layer 108a and the support layer 111a.

  Therefore, the modeling material 107 and the support material 110 are discharged onto the cured material layer 102a to form the modeling layer 108a and the support layer 111a. In the initial state, the hardening material layer 102a is formed on the surface of the modeling stage 104 in the same process as described above.

  The liquid modeling material 107 is accommodated in the modeling tank 101 and the liquid modeling material layer 107a is formed on the surfaces of the modeling layer 108a and the support layer 111a by performing the same operation as in the present embodiment. Modeling similar to that of the ninth embodiment can be performed.

  In the above embodiments, as the liquid modeling material, an uncured liquid resin such as a urea resin or an epoxy resin can be used. As a curing material for this, for example, an acid anhydride, an amine, or a mixed solution thereof can be used. Moreover, as a liquid modeling material, water, gelatin aqueous solution, a gel material etc. can be used, for example, as a hardening material, cooled glycerol aqueous solution, liquid nitrogen etc. can be used.

DESCRIPTION OF SYMBOLS 101 Modeling tank 102 Curing material 102a Curing material layer 104 Modeling stage 106 Modeling material supply means 107 Modeling material 108 Three-dimensional modeled object 108a Modeling layer (layered modeled object)
DESCRIPTION OF SYMBOLS 110 Support material 111a Support layer 111 Support part 112 Support material supply means 113 Curing material supply means 202 Curing material 206 Modeling material supply means 207 Modeling material 207a Modeling material layer 210 Support material 212 Support material supply means 213 Curing material supply means

Claims (10)

A three-dimensional modeling apparatus that stacks layered modeling objects to model a three-dimensional modeling object,
A liquid curing material layer is formed, a modeling material is supplied to the curing material layer, and the layered modeling object in which the modeling material is solidified by the curing material of the curing material layer is provided. The three-dimensional modeling apparatus characterized by this. Means for supplying the liquid curing material;
Means for supplying the modeling material,
The three-dimensional modeling apparatus according to claim 1, wherein the means for supplying the curing material supplies the curing material while moving together with the means for supplying the modeling material. Means for supplying the liquid curing material;
The three-dimensional modeling apparatus according to claim 1, wherein the means for supplying the curing material supplies the curing material from a direction along a surface of the layered structure. In a modeling tank containing the liquid curing material,
After lowering the modeling stage on which the three-dimensional model is modeled, the surface of the modeling stage or the surface of the layered model is immersed in the liquid curing material,
The modeling stage is raised, the surface of the modeling stage or the surface of the layered model is taken out from the liquid cured material, and the thin curing material layer is formed on the surface of the modeling stage or the surface of the layered model The three-dimensional modeling apparatus according to claim 1, wherein the three-dimensional modeling apparatus is formed. Means for supplying a support material to the liquid cured material layer;
Forming a layered support layer in which the support material is solidified with the cured material of the cured material layer;
The support layer that forms a support portion that supports an overhang portion of the layered structure or a support portion that comprehensively supports a three-dimensional structure to be formed is formed in the support layer. 3D modeling equipment. The three-dimensional modeling apparatus according to any one of claims 1 to 5, further comprising means for heating the three-dimensional modeled object from above to defrost the three-dimensional modeled object. When the melting point or glass transition point of the three-dimensional structure is a temperature T [° C.]
The temperature T is a temperature lower than the modeling environment or the use environment temperature of the three-dimensional model,
The three-dimensional modeling apparatus according to any one of claims 1 to 6, wherein the curing material is a substance having a freezing point lower than the temperature T cooled to a temperature T or lower or a substance having a boiling point of the temperature T or lower. A three-dimensional modeling apparatus for forming a three-dimensional structure by supplying the modeling material to a curing material that cools and solidifies the modeling material to form a layered structure, and laminating the layered structure.
Means for raising the three-dimensional structure;
Heating means for heating the three-dimensional structure,
A three-dimensional modeling apparatus, wherein the three-dimensional model is heated by the heating unit while the three-dimensional model is gradually raised by the raising means, and the three-dimensional model is thawed. The three-dimensional model | molding apparatus of Claim 8 with which the speed which raises the said three-dimensional model | molding object is changed according to the speed | rate which the said three-dimensional model | molding object thaw | decombines or couple | bonds. A three-dimensional modeling apparatus that stacks layered modeling objects to model a three-dimensional modeling object,
Forming a liquid modeling material layer, supplying a curing material to the liquid modeling material layer, and forming the layered modeling object in which the modeling material of the modeling material layer is solidified with the curing material A three-dimensional modeling apparatus comprising:

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