Three dimensional manufacturing apparatus and method for manufacturing three dimensional manufactured product

Abstract

A three dimensional manufactured product is manufactured A speed of filing an uncured light curing resin in a space for a next layer is enhanced, to improve a manufacturing speed. One surface of a container housing a light curing resin is configured by a gas-permeable sheet that faces the light curing resin, and transmits irradiation light of a light irradiating apparatus, and a light transmitting plate disposed at an outer side of the container from the gas permeable member. A pressurizing chamber controllable in pressure by a pressure controlling apparatus is defined between the gas-permeable sheet and the light transmitting plate. At moving a manufacturing stage, an inside of the pressurizing chamber is de-pressurized to cause the gas-permeable sheet to perform concave surface deformation, and at a time of performing light irradiation, gas in the pressurizing chamber is caused to permeate into the light curing resin by pressurizing.

What is claimed is: 
     
         1 . A three dimensional manufacturing apparatus, comprising:
 a container that includes a gas permeable member disposed to be in contact with a light curing resin, and a light transmitting member disposed at an opposite side to the light curing resin, of the gas permeable member, and houses the light curing resin;   a light irradiating apparatus that performs light irradiation to the light curing resin housed in the container;   a moving apparatus that moves a site cured by light irradiation by the light irradiating apparatus in a direction to separate from the gas permeable member;   a pressurizing chamber that is defined by the gas permeable member and the light transmitting member;   a pressure controlling apparatus that controls pressure of gas inside the pressurizing chamber; and   a controlling unit that controls the light irradiating apparatus, the moving apparatus and the pressure controlling apparatus.   
     
     
         2 . The three dimensional manufacturing apparatus according to  claim 1 , wherein the controlling unit
 moves the cured site in the direction to separate from the gas permeable member by the moving apparatus, and de-pressurizes the gas inside the pressurizing chamber by the pressure controlling apparatus, after curing the light curing resin by light irradiation by the light irradiating apparatus, and   pressurizes the gas inside the pressurizing chamber by the pressure controlling apparatus, after moving by the moving apparatus is ended.   
     
     
         3 . The three dimensional manufacturing apparatus according to  claim 1 , wherein the gas includes oxygen or ozone. 
     
     
         4 . The three dimensional manufacturing apparatus according to  claim 1 , wherein the light curing resin is a radical polymerization resin material of acrylate. 
     
     
         5 . The three dimensional manufacturing apparatus according to  claim 4 , wherein as an oligomer, the light curing resin of the acrylate is an oligomer of urethane acrylate, epoxy acrylate, polyester acrylate or acryl acrylate, or a composite of urethane acrylate, epoxy acrylate, polyester acrylate and acryl acrylate. 
     
     
         6 . The three dimensional manufacturing apparatus according to  claim 1 , wherein a material of the gas permeable member is PFA, PTFE, PP or PE. 
     
     
         7 . A method for manufacturing a three dimensional manufactured product, comprising:
 irradiating light to a light curing resin that is housed in a container including a gas permeable member disposed to be in contact with the light curing resin, and a light transmitting member disposed at an opposite side to the light curing resin, of the gas permeable member, to cure the light curing resin, and injecting gas to between the gas permeable member and the light transmitting member; and   moving the cured light curing resin in a direction to separate from the gas permeable member and de-pressurizing the gas between the gas permeable member and the light transmitting member.   
     
     
         8 . The method for manufacturing a three dimensional manufacture product according to  claim 7 , further comprising additively manufacturing a three dimensional manufactured product by repeatedly executing the curing and the de-pressurizing. 
     
     
         9 . The method for manufacturing a three dimensional manufactured product according to  claim 7 , wherein the gas includes oxygen or ozone. 
     
     
         10 . The method for manufacturing a three dimensional manufactured product according to  claim 7 , wherein the light curing resin is a radical polymerization resin material of acrylate. 
     
     
         11 . The method for manufacturing a three dimensional manufactured product according to  claim 10 , wherein as an oligomer, the light curing resin of the acrylate is an oligomer of urethane acrylate, epoxy acrylate, polyester acrylate or acryl acrylate, or a composite of urethane acrylate, epoxy acrylate, polyester acrylate and acryl acrylate. 
     
     
         12 . The method for manufacturing a three dimensional manufactured product according to  claim 7 , wherein a material of the gas permeable member is PFA, PTFE, PP or PE. 
     
     
         13 . A non-transitory computer-readable recording medium storing a readable control program for operating a computer to execute a method for manufacturing a three dimensional manufactured product, comprising:
 irradiating light to a light curing resin that is housed in a container including a gas permeable member disposed to be in contact with the light curing resin, and a light transmitting member disposed at an opposite side to the light curing resin, of the gas permeable member, and injecting gas to between the gas permeable member and the light transmitting member to cure the light curing resin; and   moving the cured light curing resin in a direction to separate from the gas permeable member and de-pressurizing the gas between the gas permeable member and the light transmitting member.   
     
     
         14 . A shape date supplied to a three dimensional manufacturing apparatus for manufacturing a three dimensional manufactured product, the three dimensional manufacturing apparatus comprising:
 a container that includes a gas permeable member disposed to be in contact with a light curing resin, and a light transmitting member disposed at an opposite side to the light curing resin, of the gas permeable member, and houses the light curing resin;   a light irradiating apparatus that performs light irradiation to the light curing resin housed in the container;   a moving apparatus that moves a site cured by light irradiation by the light irradiating apparatus in a direction to separate from the gas permeable member;   a pressurizing chamber that is defined by the gas permeable member and the light transmitting member;   a pressure controlling apparatus that controls pressure of gas inside the pressurizing chamber; and   a controlling unit that controls the light irradiating apparatus, the moving apparatus and the pressure controlling apparatus.   
     
     
         15 . A container holding a light curing resin for used in a three dimensional manufacturing apparatus, comprising:
 a light transmitting portion having a hydrophilic surface contacting the light curing resin.   
     
     
         16 . The container according to  claim 15 , wherein the hydrophilic surface has a liquid droplet height of 550 μm or less and a liquid droplet diameter of 15.00 mm or more in a liquid droplet shape examination.