Invention Grant
- Patent Title: Resin molding apparatus and resin molding method
- Patent Title (中): 树脂成型装置和树脂成型法
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Application No.: US12226266Application Date: 2007-04-20
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Publication No.: US07919035B2Publication Date: 2011-04-05
- Inventor: Toru Hirata
- Applicant: Toru Hirata
- Applicant Address: JP Shinagawa-Ku, Tokyo
- Assignee: Sumitomo Heavy Industries, Ltd.
- Current Assignee: Sumitomo Heavy Industries, Ltd.
- Current Assignee Address: JP Shinagawa-Ku, Tokyo
- Agency: Squire, Sanders & Dempsey (US) LLP
- Priority: JP2006-116420 20060420
- International Application: PCT/JP2007/058652 WO 20070420
- International Announcement: WO2007/123210 WO 20071101
- Main IPC: B29C45/26
- IPC: B29C45/26

Abstract:
Disclosed is a resin molding apparatus capable of enhancing transfer accuracy, reducing the cost of a molding apparatus, and shortening a molding cycle. The resin molding apparatus includes a first mold; a second mold disposed in opposition to the first mold; a transfer plate (34) attached to one of the first and second molds and comprising a transfer surface bearing a pattern of pits and projections and oriented toward a cavity (C1, C2); and a thermal insulation layer (40) disposed between the transfer plate (34) and the one of the first and second molds and formed through growth from the transfer plate (34) side or from the one of the first and second mold sides. Being disposed between the transfer plate (34) and the one of the first and second molds, the thermal insulation layer (40) can restrain dissipation of thermal energy of a molding material toward the mold. This can restrain formation of a skin layer, which would otherwise result from a sharp drop in temperature of the molding material, whereby transfer accuracy can be enhanced.
Public/Granted literature
- US20090057955A1 Resin Molding Apparatus and Resin Molding Method Public/Granted day:2009-03-05
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