Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting
Reexamination Certificate
2009-02-23
2011-12-13
Heitbrink, Jill (Department: 1743)
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
C264S040500, C425S145000
Reexamination Certificate
active
08075817
ABSTRACT:
The invention is to provide an in-line screw type injection molding machine which can have a simplified configuration of an injection mechanism and a metering mechanism. The in-line screw type injection molding machine is characterized by comprising: a metering motor9which rotationally drives a rear end side of a screw; a screw mechanism which includes a nut body rotating integrally with the screw, and a screw shaft fitted to the nut body, the screw mechanism converting rotational motion of the screw shaft into linear motion of the screw through the nut body; an injection motor16which rotationally drives the screw shaft; an injection motor drive circuit which drives the injection motor16to allow a position of the screw to follow a predetermined position command pattern; a metering motor drive circuit which drives the metering motor9to allow rotation of the metering motor9to follow a predetermined speed setting pattern; and an adder-subtracter circuit which adds or subtracts a speed setting pattern signal of the metering motor drive circuit to or from a speed command signal of the injection motor drive circuit so as to compensate an axial displacement of the screw caused by the rotation of the metering motor9.
REFERENCES:
patent: 5869108 (1999-02-01), Hiraoka
patent: 6365075 (2002-04-01), Kamiguchi et al.
patent: 6733265 (2004-05-01), Schmidt
patent: 7234928 (2007-06-01), Emoto et al.
patent: 2004/0173925 (2004-09-01), Melkus
patent: 2006/0288791 (2006-12-01), Shiozawa et al.
patent: 2011/0159133 (2011-06-01), Taniguchi
patent: 1 316 406 (2003-06-01), None
patent: 5-77287 (1993-03-01), None
patent: 5-345337 (1993-12-01), None
patent: 9-254221 (1997-09-01), None
patent: 2000-71304 (2000-03-01), None
patent: 2002-321264 (2002-11-01), None
patent: 2006-346873 (2006-12-01), None
patent: WO 99/65660 (1999-12-01), None
International Search Report dated Mar. 24, 2009 including English-translation (Four (4) pages).
Crowell & Moring LLP
Heitbrink Jill
Toyo Machinery & Metal Co., Ltd.
LandOfFree
In-line screw type injection molding machine and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with In-line screw type injection molding machine and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In-line screw type injection molding machine and method of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4309274