• Patent Title: Injection molded body, injection molding method, and injection molding die
  • Application No.: US14909076
    Application Date: 2014-07-28
  • Publication No.: US10695965B2
    Publication Date: 2020-06-30
  • Inventor: Hirohisa AbeSatoru Fukuzawa
  • Applicant: NTN CORPORATION
  • Applicant Address: JP Osaka
  • Assignee: NTN CORPORATION
  • Current Assignee: NTN CORPORATION
  • Current Assignee Address: JP Osaka
  • Agency: Hedman & Costigan, P.C.
  • Agent James V. Costigan; Kathleen A. Costigan
  • Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@713e23f6
  • International Application: PCT/JP2014/069825 WO 20140728
  • International Announcement: WO2015/016179 WO 20150205
  • Main IPC: B29C45/38
  • IPC: B29C45/38 B29C45/27 C08J5/00
Injection molded body, injection molding method, and injection molding die
Abstract:
A method for making a synthetic resin injection molded body that is gate-cut by die opening after injection molding by means of a pinpoint gate 9. A cavity 10 is filled with a molten resin, from a first sprue 6 that is provided coaxially with the injection direction of the molten resin, through a runner 7 that is provided in the perpendicular direction to the first sprue 6, via a pinpoint gate 9 that is formed on a tip part of a second sprue 8 that is provided horizontally to the injection direction of the molten resin, from a gate port 9a of the pinpoint gate 9 formed on a cavity plane that is in parallel with the die opening direction; after cooling, gate cutting is performed by means of die opening; and a molded body is taken out in an ejection step.
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