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:
Mar. 07, 2006
Filed:
Oct. 03, 2003
Haruyuki Matsubayashi, Shizuoka, JP;
Yukio Iimura, Shizuoka, JP;
Takashi Yamazaki, Shizuoka, JP;
Akira Kanda, Shizuoka, JP;
Takamitsu Yamashita, Shizuoka, JP;
Yutaka Yamaguchi, Shizuoka, JP;
Masamitsu Suzuki, Shizuoka, JP;
Haruyuki Matsubayashi, Shizuoka, JP;
Yukio Iimura, Shizuoka, JP;
Takashi Yamazaki, Shizuoka, JP;
Akira Kanda, Shizuoka, JP;
Takamitsu Yamashita, Shizuoka, JP;
Yutaka Yamaguchi, Shizuoka, JP;
Masamitsu Suzuki, Shizuoka, JP;
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Abstract
An electric injection molding machine capable of maintaining a quality of molded articles and capable of suppressing a variation of weight of articles molded by a mold having a plurality of cavities when transferring molding conditions in a hydraulic injection molding machine as they are to the electric injection molding machine. This electric injection molding machine has an electric injection mechanism for injecting a molding material into a mold by a drive force of an electric motor, an injection control unit and a servo driver for controlling the injection motor so as to follow the injection speed reference, and an reference compensation unit for compensating the injection speed reference based on the characteristics of the hydraulic drive system so that fluctuation characteristics of the injection speed with respect to the injection pressure when controlling the electric injection mechanism approximate the fluctuation characteristics of the injection speed with respect to the injection pressure in the hydraulic injection mechanism performing the injection of the molding material to the mold by the hydraulic drive system.