Molding method and molding apparatus

Patent metadata

Field	Value
Publication number	US-8956563-B2
Application number	US-201414187606-A
Country	US
Kind code	B2
Filing date	Feb 24, 2014
Priority date	Mar 2, 2010
Publication date	Feb 17, 2015
Grant date	Feb 17, 2015

Abstract

A molding method includes drawing cross-section elements of a three-dimensional object as a molding target on a drawing surface of a drawing stand with a liquid whose curing is precipitated by receiving activation energy as cross-section patterns; applying the activation energy to the liquid configuring the cross-section patterns in a state in which the cross-section patterns is pinched between the drawing stand and a molding stand; and detaching the cross-section patterns after being applied with the activation energy from the drawing stand and transferring the cross-section patterns to the molding stand side, wherein the drawing surface has a liquid repellent area that is an area representing liquid repellency for the liquid and a lyophilic area that is independently formed in an island shape within the liquid repellent area and is an area representing lyophillicity stronger than that of the liquid repellent area for the liquid.

First claim

What is claimed is:

1. A molding method comprising:
dividing a three-dimensional object as a molding target into a plurality of cross-section elements and drawing the cross-section elements as cross-section patterns on a drawing surface of a drawing stand, the drawing surface having a liquid whose curing is precipitated by receiving activation energy;
applying the activation energy to the liquid configuring the cross-section patterns in a state in which the cross-section patterns drawn on the drawing stand is pinched between the drawing stand and a molding stand; and
detaching the cross-section patterns after being applied with the activation energy from the drawing stand and transferring the cross-section patterns to the molding stand,
wherein, in the dividing of the three-dimensional object and the drawing of the cross-section elements, the cross-section patterns are drawn on the drawing surface that has a liquid repellent area that has liquid repellency for the liquid,
the drawing surface has a plurality of lyophilic areas that are independently formed in an island shape with a gap between the plurality of lyophilic areas within the liquid repellent area,
a lyophilicity of each of the plurality of lyophilic areas is larger than a lyophilicity of the liquid repellent area, and
in the drawing the cross-section elements as the cross-section patterns, the cross-section patterns are maintained in the gap between the plurality of lyophilic areas.

2. The molding method according to claim 1 ,
wherein the liquid has photo curability that is a property of being precipitated to be cured by receiving irradiation of light, and
wherein, in the applying of the activation energy, the liquid is irradiated with the light.

3. The molding method according to claim 1 , wherein, in the dividing of the three-dimensional object and the drawing of the cross-section elements, the cross-section patterns are drawn on the drawing surface by ejecting the liquid to the drawing stand using an ink jet method.

Assignees

• Seiko Epson Corp

Inventors

• Okamoto Eiji
• Hirai Toshimitsu
• Ishida Kohei

Classifications

• B33Y30/00

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

• B29C64/264

  Arrangements for irradiation · CPC title

• B29L2009/00

  Layered products · CPC title

• B29C64/112 Primary

  using individual droplets, e.g. from jetting heads · CPC title

• B29C35/08

  by wave energy or particle radiation {(B29C64/00, B29C71/04 take precedence)} · CPC title