Invention Grant
- Patent Title: Cold runner injection mold having an insulated gate
- Patent Title (中): 具有绝缘门的冷流道注塑模具
-
Application No.: US11168632Application Date: 2005-06-28
-
Publication No.: US07708550B2Publication Date: 2010-05-04
- Inventor: Kanji Sekihara , Atsushi Naito , Yoshihiro Okumura
- Applicant: Kanji Sekihara , Atsushi Naito , Yoshihiro Okumura
- Applicant Address: JP Tokyo
- Assignee: Konica Minolta Opto, Inc.
- Current Assignee: Konica Minolta Opto, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Brinks Hofer Gilson & Lione
- Priority: JP2004-191835 20040629
- Main IPC: B29C45/73
- IPC: B29C45/73
Abstract:
An injection mold and an injection molding apparatus having a movable mold and a fixed mold. Each of the movable/fixed molds has bases, and a runner, a gate and a cavity are formed. The gate is composed of recesses made in mutually opposite end surfaces of sleeve-like heat insulators provided for the bases. Thereby, the gate is heat-insulated, and resin in the gate is prevented from cooling down during a pressure retention step. Thus, the resin keeps fluidity longer.
Public/Granted literature
- US20050287243A1 Injection mold and injection molding apparatus Public/Granted day:2005-12-29
Information query
