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:
Nov. 02, 2010
Filed:
Oct. 01, 2008
Takashi Hakoda, Nagano-ken, JP;
Isamu Komamura, Nagano-ken, JP;
Toshimi Kato, Nagano-ken, JP;
Kiyoshi Nakamura, Nagano-ken, JP;
Takashi Hakoda, Nagano-ken, JP;
Isamu Komamura, Nagano-ken, JP;
Toshimi Kato, Nagano-ken, JP;
Kiyoshi Nakamura, Nagano-ken, JP;
Nissei Plastic Industrial Co., Ltd., Nagano, JP;
Abstract
The present invention comprises a speed feedback control system for carrying out speed feedback control on the basis of a speed detected value Vd obtained by converting a position detected value Xd obtained from a screw position sensor, a pressure feedback control system for carrying out a pressure feedback control on the basis of a pressure detected value Pdb obtained from an injection pressure sensor, and a VP switching control function portion Fc for carrying out switching from a speed control region to a pressure control region Zp when a pressure deviation Ep between a preset pressure set value Ps and the pressure detected value Pdb becomes a preset switching determination value Eps or less and carrying out the switching to the pressure control region Zp after control of a speed command value in the speed control region Zv by a predetermined control pattern Dp at this switching.