The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2012
Filed:
Feb. 27, 2009
Takashi Hakoda, Nagano-ken, JP;
Toshimi Kato, Nagano-ken, JP;
Yoshimoto Unno, Nagano-ken, JP;
Hirofumi Murata, Nagano-ken, JP;
Kiyoshi Nakamura, Nagano-ken, JP;
Takashi Hakoda, Nagano-ken, JP;
Toshimi Kato, Nagano-ken, JP;
Yoshimoto Unno, Nagano-ken, JP;
Hirofumi Murata, Nagano-ken, JP;
Kiyoshi Nakamura, Nagano-ken, JP;
Nissei Plastic Industrial Co., Ltd., Hanishina-Gun, Nagano-Ken, JP;
Abstract
An injection molding machineincludes mode selection meansthat can selectively switch between a first control mode Mand a second control mode M. In the first control mode M, control is performed by a first control system Cf in which a screw speed is controlled by feedback with a speed detection value Vd that is detected by screw speed detection meansand a speed target value Vfc, and an injection pressure is controlled by feedback with a pressure detection value Pid that is detected by injection pressure detection meansand a pressure target value Pic, whereas, in the second control mode M, control is performed by a second control system Cs in which the screw speed is open-loop controlled with a speed target value Vsc, and a pump pressure is controlled by feedback with a pressure detection value Ppd that is detected by pump pressure detection meansand that is related to the pump pressure of the hydraulic pumpand a pressure target value Ppc.