An injection-molding device and an injection molding method

Japanese Patent JP6130533

B2

The present invention provides an injection molding apparatus and an injection molding method for a resin material containing reinforcing fibers capable of preventing or suppressing an irregularity in a content of the reinforcing fibers, and obtaining a stable molding quality. The injection molding apparatus of the present invention includes: a heating cylinder 201; a screw 10 that is provided rotatably in an inner portion of the heating cylinder 201; a resin feed hopper 207 that feeds a resin pellet P; and a fiber feed device 213 that is provided ahead of the resin feed hopper 207 and feeds reinforcing fibers into the heating cylinder 201. The screw 10 includes a first stage 21 that is located on a rear side, and in which the resin pellet P is melted, and a second stage 22 that is located on a front side, and in which the melted resin pellet P and the reinforcing fibers F are mixed, and a lead L2 of a second thread 28 provided in the second stage 22 is larger than a lead L1 of a first thread 27 provided in the first stage 21.

Toshihiko Kariya
Naoki Toda
Munehiro Shinoda
Kiyoshi Kinoshita
Yuji Yamaguchi
Kousuke Ikeda
Suzumura Yuji
Hitoshi Onuma
Ryoji Okabe
Masanori Takahashi

JP2016030644A

May 17, 2017

February 22, 2016

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u-mhi Platec Co., Ltd.
MITSUBISHI HEAVY INDUSTRIES,LTD.

B29C45/18; B29C45/46

JP8091164A
JP6238655A
JP2000263547A
JP2007015382A
JP2014046631A
JP10156901A

Mitsuru Oba
Horikawa Miyuki
Yuko Otake
Yamashita Seiko

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