Title:
発泡樹脂成形品の製造方法及び製造装置
Document Type and Number:
Japanese Patent JP7338376
Kind Code:
B2
Abstract:
To provide a method and apparatus capable of producing a foamed resin molded article having an appearance of excellent quality by solving a problem which occurs when taking out the foamed resin molded article from a mold.SOLUTION: There is provided a method for producing a foamed resin molded article 110 by filling a foamable resin 72 in a cavity 46 formed on a separation surface of a first mold 36 and a second mold 38, which comprises (a) a step of filling a foamable resin in a cavity; (b) a step of cooling a first resin portion adjacent to the first mold and a second resin portion adjacent to the second mold and cooling the second resin portion more than the first resin portion; (c) a step of foaming the foamable resin to form the foamed resin molded article containing air bubbles in the resin, (d) a step of separating the first mold from the foamed resin molded article while the foamed resin molded article is left in the second mold and (e) a step of separating the foamed resin molded article from the second mold by pushing the foamed resin molded article toward the direction to the first mold from the second mold.SELECTED DRAWING: Figure 3
Inventors:
Keisuke Higashinakagawa
Mitsuharu Kaneko
Masaaki Onishi
Mitsuharu Kaneko
Masaaki Onishi
Application Number:
JP2019179421A
Publication Date:
September 05, 2023
Filing Date:
September 30, 2019
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
B29C45/73; B29C44/00; B29C45/78
Domestic Patent References:
| JP2014091314A | ||||
| JP2005324422A | ||||
| JP2003266469A | ||||
| JP2012250387A |
Attorney, Agent or Firm:
Takuji Yamada
Mikio Tanaka
Mikio Tanaka