公开(公告)号：US11759989B2

公开(公告)日：2023-09-19

申请号：US17931325

申请日：2022-09-12

Applicant: SHIBAURA MACHINE CO., LTD.

Inventor： Koji Mizunuma ,  Yuusuke Uno ,  Masahiro Tanada

IPC: B29C48/08 ,  B29C48/305 ,  B29C48/91 ,  B29C48/12 ,  F21V8/00 ,  B29C48/88 ,  B29C48/00 ,  B29C43/22 ,  B29C43/46 ,  B29C48/31 ,  B29C59/04 ,  G02B5/02 ,  B29C45/27 ,  B29C43/24 ,  B29L11/00

CPC classification number: B29C48/08 ,  B29C43/222 ,  B29C43/46 ,  B29C45/2737 ,  B29C48/0011 ,  B29C48/0022 ,  B29C48/12 ,  B29C48/305 ,  B29C48/313 ,  B29C48/91 ,  B29C48/914 ,  B29C59/04 ,  G02B5/02 ,  G02B6/0065 ,  B29C43/24 ,  B29C2043/466 ,  B29K2995/0026 ,  B29L2011/0075

Abstract: An extruding unit, a forming roll unit and a thick portion forming mechanism are provided. The extruding unit has an ejecting slit which ejects sheet-shaped molten resin. The ejecting slit includes a standard gap portion and an enlarged gap portion. The standard gap portion is formed as a gap having a constant size. The enlarged gap portion is formed as a gap larger than the standard gap portion in a position corresponding to a thick portion. The thick portion forming mechanism forms one or several thick portions which are thicker than other portion, in the sheet-shaped molten resin continuously in the extrusion direction.

公开(公告)号：US20230001620A1

公开(公告)日：2023-01-05

申请号：US17931325

申请日：2022-09-12

Applicant: Shibaura Machine Co., Ltd.

Inventor： Koji Mizunuma ,  Yuusuke Uno ,  Masahiro Tanada

IPC: B29C48/08 ,  B29C48/305 ,  B29C48/91 ,  B29C48/12 ,  F21V8/00 ,  B29C48/88 ,  B29C48/00 ,  B29C43/22 ,  B29C43/46 ,  B29C48/31 ,  B29C59/04 ,  G02B5/02 ,  B29C45/27

Abstract: An extruding unit, a forming roll unit and a thick portion forming mechanism are provided. The extruding unit has an ejecting slit which ejects sheet-shaped molten resin. The ejecting slit includes a standard gap portion and an enlarged gap portion. The standard gap portion is formed as a gap having a constant size. The enlarged gap portion is formed as a gap larger than the standard gap portion in a position corresponding to a thick portion. The thick portion forming mechanism forms one or several thick portions which are thicker than other portion, in the sheet-shaped molten resin continuously in the extrusion direction.