JPH0820073A - Method and apparatus for generating three-dimensional shape - Google Patents

Abstract

PURPOSE:To generate a three-dimensional structure at high speed and to make apparatus equipment simple and inexpensive. CONSTITUTION:A predetermined amt. of a liquid resin is supplied into a container 1 and a droplet jet head 4 is scanned by an X-Y stage 2 to be set to a desired position and a curing liquid is ejected as liquid droplets from a plurality of nozzle orifices to cure the desired position of the liquid resin in the container 1. Thereafter, a bottom plate 3 is lowered and the liquid is newly supplied and the scanning of the droplet jet head 4 and the ejection and curing of the liquid are repeated to obtain a desired three-dimensional structure.

Description

Detailed Description of the Invention

[0001]

This invention relates to the synthesis of two liquids,
The present invention relates to a method and an apparatus for creating a three-dimensional structure in which one liquid is cured to harden the other liquid to create a three-dimensional object, and particularly to a method and an apparatus suitable for producing a metal piece mold.

[0002]

2. Description of the Related Art Currently known three-dimensional structure creation methods include thermosetting, laser light CVD, building blocks, thin plate cutting or lamination, FDM, LOM, photolysis, stereolithography, and the like. Japanese Patent Application Laid-Open No. 5-154925
In recent years, the stereolithography method as disclosed in Japanese Patent Publication has become widely used. In this method, laser light is selectively irradiated from above the photocurable resin to gradually create a desired three-dimensional shape.

[0003]

However, in the method of irradiating the photocurable resin with the laser beam, it is necessary to limit the scanning speed of the laser beam because the amount of light required for curing the resin material is irradiated. Therefore, there was a problem that the creation speed could not be increased beyond a certain level.

The present invention has been made in view of such conventional problems, and provides a three-dimensional structure creating method and the same, which can increase the creation speed and make the equipment of the apparatus simpler and cheaper. The purpose is to provide.

[0005]

In order to achieve the above-mentioned object, the method for creating a three-dimensional shape according to the present invention creates a three-dimensional structure by dropping a curing liquid into an uncured liquid resin as a main component and solidifying it. It is characterized by doing.

In order to achieve the above object, the method for creating a three-dimensional shape according to the present invention is characterized in that a three-dimensional structure is created by dropping an uncured liquid resin into a hardening liquid and solidifying the resin.

In order to achieve the above object, the method for creating a three-dimensional shape according to the present invention is characterized by creating a three-dimensional structure by dropping a solution containing ions into an uncured liquid anaerobic resin and solidifying the solution. And

In order to achieve the above object, the method for creating a three-dimensional shape according to the present invention is characterized by creating a three-dimensional structure by dropping an uncured liquid anaerobic resin into a solution containing ions and solidifying the solution. And

In order to achieve the above object, the method for creating a three-dimensional shape according to the present invention is characterized in that a three-dimensional structure is created by dropping a molten resin into a liquid and cooling and solidifying the resin.

The three-dimensional shape creating method according to the present invention can also be characterized in that the liquid to be dropped is ejected as a droplet from a nozzle to solidify only a desired position shape.

In order to achieve the above object, the three-dimensional shape creating method according to the present invention is characterized in that uncured thermosetting resin is impregnated with hot fine particles so as to be partially solidified.

The method for creating a three-dimensional shape according to the present invention may be configured to add a filler to the resin material used.

The method for creating a three-dimensional shape according to the present invention may be configured to give a vibration to the reaction system to accelerate the curing reaction.

A three-dimensional shape creating apparatus according to the present invention is an apparatus for carrying out any one of the above three-dimensional structure creating methods, and is an apparatus for carrying out any one of the above three-dimensional structure creating methods. And a nozzle for ejecting a liquid in the form of a droplet or a powder for solidifying only a desired position of the main agent, and means for positioning and driving the nozzle.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a three-dimensional structure creating apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a three-dimensional structure creating apparatus according to the present invention. In the figure, 1 is a container, 2 is an XY stage, and the container 1 has a bottom plate 3 which is vertically movable in the figure. The XY stage 2 is arranged on the upper surface thereof. A droplet jetting head 4 is provided on the XY stage 2 so that droplets can be jetted onto the uncured liquid surface filled in the container 1. Reference numeral 5 in the drawing denotes a liquid supply port through which a liquid resin or the like to be cured is supplied into the container 1.

FIG. 2 is a perspective view showing an example of the droplet jetting head 4, which has a plurality of nozzle holes 6, a cleaning blade 7 for preventing liquid dripping, a gutter 8 for collecting defective droplets, and a liquid supply hole 9. Is equipped with.

In the apparatus of this embodiment, the container 1 is fed from the liquid supply port 5.
A predetermined amount of liquid resin or the like is supplied in the inside, and the droplet jetting head 4 is scanned by the X and Y stages 2 to be positioned at a desired position, and the liquid for curing from the plurality of nozzle holes 6 is made into droplets. It is jetted at a proper time (for example, like the droplet group 10 in FIG. 2) to cure a desired position of the liquid resin or the like in the container 1. After that, the movable bottom plate 3 is lowered and the liquid supply port 5
The liquid is newly supplied from the above, the droplet jet head 4 is again scanned by the X and Y stages 2 to be positioned at a desired position, and the liquid for hardening is jetted from the nozzle hole 6 and hardened. By repeating this work, a three-dimensional structure, for example, FIG.
The cured portion 11 shown in is formed.

Examples of the uncured liquid resin as the main component supplied into the container 1 include area resin and epoxy resin.
Curing agents for this include acid anhydrides, amines, and mixed solutions thereof.

Contrary to the above embodiment, a hardening liquid may be placed in the container 1 and the uncured liquid resin may be dripped into it to solidify. It is also possible to add a solution containing ions to the uncured liquid anaerobic resin to solidify it, or vice versa, but the anaerobic resin and solution may be a combination such as an accelerator for tetraethylene glycol dimethacrylate. To be Further, the resin in a molten state can be dropped into the liquid to be cooled and solidified. In this case, by providing a means for cooling the substrate (for example, the bottom plate 3 in the illustrated embodiment) itself for forming the structure, The creation speed can be increased. Further, the composition of water, oil or the like is selected as the cooling liquid according to the dropped resin. Further, the uncured thermosetting resin can be partially solidified by driving hot fine particles such as high temperature droplets, and the heat fine particles can be powder other than high temperature droplets.
Fillers such as filler, carbon resin, and whiskers may be added to the resin material.

Further, in each of the above-mentioned embodiments, the liquid droplet ejecting means may be, in addition to the liquid jet nozzle, an electrostrictive element, a bubble, a voltage, an air flow or the like, or an electrostatic force. Further, it is possible to give a vibration to the reaction system to accelerate the hardening reaction, but as a vibrating means, an ultrasonic vibrating element is considered, and a higher effect can be obtained if it is synchronized with the ejection of the droplet.

[0021]

In the method for creating a three-dimensional structure according to the first aspect of the present invention, a reaction is caused by dripping the curing liquid to enable the creation of a three-dimensional shape, and therefore an energy source such as laser light is not required. There is an effect that it becomes possible to easily create a shape.

In the method for creating a three-dimensional structure according to claim 2, a reaction is caused by dripping the uncured liquid resin, and a three-dimensional shape can be created. Therefore, an energy source such as laser light is not required. There is an effect that it becomes possible to easily create a shape.

In the method for creating a three-dimensional structure according to claim 3, since a reaction is caused by dripping the ion-containing solution and a three-dimensional shape can be created, an energy source such as laser light is not required, There is an effect that the shape can be easily created.

In the method for creating a three-dimensional structure according to the fourth aspect, a reaction occurs by dripping the uncured anaerobic resin, and a three-dimensional shape can be created. Therefore, an energy source such as laser light is not required. Therefore, there is an effect that the shape can be easily created.

In the three-dimensional structure creating method of the fifth aspect, since the liquid resin is dripped into the liquid and cooled to be directly solidified, in addition to the common effects described above, it is possible to more easily perform shape creation. There is an effect that.

In the three-dimensional structure creating method according to the sixth aspect, since the head having the nozzle is scanned and the liquid to be dropped is ejected from this nozzle, in addition to the above-mentioned common effect, a curing reaction unlike the photocuring by the laser is performed. There is no need to wait at all, and as a result, it is possible to simultaneously carry out curing while ejecting droplets, which has the effect of further increasing the creation speed.

In the method for creating a three-dimensional structure according to claim 7, since the thermosetting resin is impregnated with the hot fine particles to cure the thermosetting resin, an energy source such as a laser beam is not required and the shape can be easily created. The effect is that you will be able to.

In the three-dimensional structure creating method according to the eighth aspect, since the filler is added to the resin agent, in addition to the common effects described above, it is possible to maintain a good shape after curing.
Moreover, there is an effect that the curing time can be shortened.

In the method for creating a three-dimensional structure according to claim 9, since the reaction system is vibrated, in addition to the common effects described above, the shape after curing can be maintained in a good shape and the curing time can be increased. The effect is that it can be shortened significantly.

In the three-dimensional structure creating apparatus of the tenth aspect, a nozzle for ejecting a liquid in the form of liquid droplets or a powder for solidifying only a desired position of the main agent, and a means for positioning and driving the nozzle. Since it includes and, there is an effect that a simple structure that does not require an energy source such as laser light can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a three-dimensional structure creation device according to the present invention.

FIG. 2 is a perspective view showing an example of the droplet jet head of FIG.

[Explanation of symbols]

 1 Container 2 XY Stage 3 Bottom Plate 4 Droplet Ejection Head 5 Liquid Supply Port 6 Nozzle Hole 7 Cleaning Blade 8 Gutter 9 Liquid Supply Hole 10 Droplet Group 11 Curing Section

Claims (10)

[Claims] 1. A method for creating a three-dimensional structure, characterized in that a three-dimensional structure is created by dropping a curing liquid onto an uncured liquid resin as a main component and solidifying the resin. 2. A three-dimensional structure creating method characterized by creating a three-dimensional structure by dropping an uncured liquid resin into a hardening liquid to solidify it. 3. A method for creating a three-dimensional structure, which comprises creating a three-dimensional structure by dropping a solution containing ions into an uncured liquid anaerobic resin and solidifying the solution. 4. A three-dimensional structure creating method characterized by creating a three-dimensional structure by dropping an uncured liquid anaerobic resin into a solution containing ions to solidify it. 5. A method for creating a three-dimensional structure, which comprises creating a three-dimensional structure by dropping a resin in a molten state into a liquid to cool and solidify the resin. 6. The three-dimensional structure creating method according to any one of claims 1 to 5, wherein the liquid to be dropped is ejected as a liquid droplet from a nozzle to solidify only a desired position shape. . 7. A method for creating a three-dimensional structure, characterized in that hot particles such as high-temperature droplets are injected into an uncured thermosetting resin to partially solidify it. 8. A method for creating a three-dimensional structure, which comprises adding a filler to the resin material used in any one of claims 1 to 5 or claim 7. 9. The method for creating a three-dimensional structure according to any one of claims 1 to 4 or 6 to 8, wherein a vibration is applied to the reaction system to accelerate the hardening reaction. 10. An apparatus for carrying out any one of the above three-dimensional structure creation methods, comprising jetting a liquid in the form of droplets,
Alternatively, a three-dimensional structure creating apparatus including a nozzle for spraying powder to solidify only a desired position of the main agent, and a unit for positioning and driving the nozzle.