Title:
MOLDING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/071215
Kind Code:
A1
Abstract:
[Problem] To provide a molding method with which it is possible to significantly improve molding efficiency.
[Solution] A first sheet-shaped resin and a second sheet-shaped resin in a molten state extruded from an extruder are directly dropped downward to be arranged between divided molds. Air between one divided mold and the first sheet-shaped resin is depressurized to bring the first sheet-shaped resin into intimate contact with a mold cavity of the one divided mold, and air between the other divided mold and the second sheet-shaped resin is depressurized to bring the second sheet-shaped resin into intimate contact with a mold cavity of the other divided mold. Mold closing is performed with an intermediate mold interposed between the divided molds brought into intimate contact with the respective sheet-shaped resins. The intermediate mold has protrusion parts butted against the outsides of outer edges of the mold cavities of the respective divided molds.
Inventors:
NIIMI TAKAYA (JP)
HAYASHI YOSUKE (JP)
MURAO KENICHI (JP)
HAYASHI YOSUKE (JP)
MURAO KENICHI (JP)
Application Number:
PCT/JP2019/037736
Publication Date:
April 09, 2020
Filing Date:
September 26, 2019
Export Citation:
Assignee:
KYORAKU CO LTD (JP)
International Classes:
B29C51/02; B29C49/04; B29C49/48; B29C51/10; B29C51/30
Foreign References:
| JP2006068930A | 2006-03-16 | |||
| JPS5388573U | 1978-07-20 | |||
| JP2011073422A | 2011-04-14 | |||
| JP2013049196A | 2013-03-14 |
Attorney, Agent or Firm:
ASANO Noriko (JP)
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