公开(公告)号：US20180093413A1

公开(公告)日：2018-04-05

申请号：US15562516

申请日：2016-03-31

Applicant: Kyoraku Co., Ltd.

Inventor： Ryohei YUASA ,  Takashi NOMURA ,  Naoki UEDA

IPC: B29C64/118 ,  B29C47/00 ,  B29C47/06 ,  C08L55/02 ,  C08J5/04 ,  B33Y70/00

CPC classification number: B29C64/118 ,  B29C48/02 ,  B29C48/022 ,  B29C48/05 ,  B29C48/18 ,  B29C48/21 ,  B29C48/266 ,  B29C48/49 ,  B29C48/905 ,  B29C48/908 ,  B29C48/92 ,  B29C64/209 ,  B29C64/314 ,  B29C67/00 ,  B29C2948/92123 ,  B29C2948/92438 ,  B29C2948/92619 ,  B29C2948/92942 ,  B29K2055/02 ,  B29K2105/16 ,  B29K2507/04 ,  B29K2509/00 ,  B29K2995/007 ,  B33Y70/00 ,  C08J5/042 ,  C08L55/02

Abstract: A molded resin strand includes a first layer containing thermoplastic resin, and a second layer covering the first layer and containing thermoplastic resin exhibiting physical properties different from those of the first layer. For example, the second layer is melt-extruded with the second layer covering the first layer. A three-dimensional object is modeled by lamination deposition by fusion between adjacent second layers. In a molded resin strand manufacturing method, a melt-kneaded resin material is continuously extruded from a ferrule of an extruder. The extruded molded resin strand is vacuum-sucked while passing through a sizing device. Subsequently, the molded resin strand is wound up after cooling solidification. The sizing device is provided with a space having a circular cross section, and a surface of the sizing device facing the space is provided with a plurality of vacuum suction grooves.