Title:
SCREW FOR INJECTION MOLDING MACHINE, INJECTION MOLDING MACHINE, AND INJECTION MOLDING METHOD
Document Type and Number:
WIPO Patent Application WO/2016/113776
Kind Code:
A1
Abstract:
Provided is a screw that is for use in an injection molding machine and that makes it possible to benefit from the kneading effect of a multi-start screw while minimizing the received friction resistance. The screw for an injection molding machine is provided with a first stage 20 on the upstream side and a second stage 30 on the downstream side. The screw for an injection molding machine is characterized in that: the first stage 20 is provided with a compression section 22 comprising a main scraper 25 and an auxiliary scraper 26 having a smaller outer diameter than the main scraper 25; and the second stage 30 is provided with a multi-start screw section 31, said multi-start screw section being provided on the upstream side and comprising a plurality of scrapers, and a fin kneading section 32 provided downstream from the multi-start screw section.
Inventors:
NOBUTA MUNEHIRO (JP)
TODA NAOKI (JP)
KARIYA TOSHIHIKO (JP)
YAMAGUCHI TAKESHI (JP)
KINOSHITA KIYOSHI (JP)
TODA NAOKI (JP)
KARIYA TOSHIHIKO (JP)
YAMAGUCHI TAKESHI (JP)
KINOSHITA KIYOSHI (JP)
Application Number:
PCT/JP2015/000156
Publication Date:
July 21, 2016
Filing Date:
January 15, 2015
Export Citation:
Assignee:
MITSUBISHI HEAVY IND PLASTIC TECHNOLOGY CO LTD (JP)
International Classes:
B29C45/60; B29C45/50
Domestic Patent References:
| WO2012056565A1 | 2012-05-03 |
Foreign References:
| JP2006527665A | 2006-12-07 | |||
| JPH06218781A | 1994-08-09 | |||
| JP2000289087A | 2000-10-17 | |||
| JPH01146925U | 1989-10-11 |
Attorney, Agent or Firm:
OBA, Mitsuru et al. (JP)
Mitsuru Oba (JP)
Mitsuru Oba (JP)
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