Title:
射出成形用金型
Document Type and Number:
Japanese Patent JP6652533
Kind Code:
B2
Abstract:
To provide an injection molding die capable of suppressing an occurrence of defects in resin molding caused by poor gas discharge at welds and resin flow terminals at a low cost.SOLUTION: An injection molding die 10 has a first mold 20, a second mold 30 which is freely openable and closable to the first mold 20 and forms a cavity 11 with the first mold 20 when closed to the first mold 20, and a lid member 35 securing a gas storage space 36 in a second mold recess 34 recessed from a second mold molding surface 31 of the second mold 30 in a mold clamping state by covering an opening of the second mold recess 34. The gas storage space 36 communicates with the cavity through a space between an opening inner peripheral surface of the second mold recess 34 and the lid member 35 or an air passage secured in a hole shape penetrating the lid member 35.SELECTED DRAWING: Figure 3
Inventors:
Etsuo Okahara
Application Number:
JP2017168947A
Publication Date:
February 26, 2020
Filing Date:
September 01, 2017
Export Citation:
Assignee:
Kumi Kasei Co., Ltd.
International Classes:
B29C45/34
Domestic Patent References:
| JP2014065266A | ||||
| JP5058243U | ||||
| JP10128802A |
Attorney, Agent or Firm:
Yasushi Matsunuma
Yuichiro Shimizu
Norihiko Ara
Masatake Shiga
Tadashi Takahashi
Suzuki Mitsuyoshi
Yuichiro Shimizu
Norihiko Ara
Masatake Shiga
Tadashi Takahashi
Suzuki Mitsuyoshi