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Title:
INJECTION MOLDING METHOD
Document Type and Number:
WIPO Patent Application WO/2012/173224
Kind Code:
A1
Abstract:
A pressure sensor (27) is inserted into a tip of a heating cylinder (13) of an injection molding device (10). During a measurement process, a little amount of grain-shaped biomass resin (45) and a little amount of powder-shaped additive (46) are supplied from constant feeders (52, 54) to a hopper (40) lying at an inlet (28). Right below the inlet (28), a material is supplied through certain periods of time with an opening left in a space in the heating cylinder (13). A controller (25) calculates a backing power (PJ) of a screw (14) based on a pressure value detected with the pressure sensor (27), and controls a driving unit (18) so that the power multiplied by a coefficient (K) (1.2 ~ 2.0) becomes a driving power (PH) added to the screw (14).

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Inventors:
OGURA TOHRU (JP)
KAWASAKI HIDETOSHI (JP)
FUJIWARA MORIO (JP)
Application Number:
PCT/JP2012/065334
Publication Date:
December 20, 2012
Filing Date:
June 15, 2012
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
OGURA TOHRU (JP)
KAWASAKI HIDETOSHI (JP)
FUJIWARA MORIO (JP)
International Classes:
B29C45/50; B29C45/77
Foreign References:
JPH07164492A1995-06-27
JPH09254206A1997-09-30
JP2003211508A2003-07-29
Attorney, Agent or Firm:
KOBAYASHI, KAZUNORI (JP)
Kazunori Kobayashi (JP)
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Claims:



 
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