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:
Oct. 25, 2016
Filed:
Apr. 06, 2011
Masaaki Ikarashi, Nagoya, JP;
Mamoru Kawasaki, Nagoya, JP;
Masaaki Ikarashi, Nagoya, JP;
Mamoru Kawasaki, Nagoya, JP;
MITSUBISHI HEAVY INDUSTRIES PLASTIC TECHNOLOGY CO., LTD., Nagoya-shi, JP;
Abstract
A hydraulic supply device of an injection molding machine is provided with: a first main hydraulic power source including a first main hydraulic pump having a variable capacity and driven by a first constant rotational speed motor, and a first main discharge pipe through which working oil flows; an auxiliary hydraulic power source including an auxiliary hydraulic pump driven by a servo motor and operated at a specific capacity, an auxiliary discharge pipe through which the working oil flows, and a check valve that regulates the inflow of working oil to the auxiliary hydraulic pump; a hydraulic control unit that controls the first main hydraulic power source and the auxiliary hydraulic power source; a junction pipe at which the first main discharge pipe and the auxiliary discharge pipe join; and a switching unit that switches the supply/non-supply of working oil for a hydraulic actuator.