Patents by Inventor Yoshimoto Unno
Yoshimoto Unno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8186989Abstract: When controlling each operational process in a molding cycle by variably controlling the number of revolutions of a drive motor 3 in a hydraulic pump 2, a hydraulic pump 2 where at least multiple fixed discharge flow rate Qo and Qs can be set is used as the hydraulic pump 2. At the same time, the fixed discharge flow rates Qo . . . are set corresponding to operational processes based upon predetermined conditions in advance, respectively, and the hydraulic pump 2 is switched to the fixed discharge flow rates Qo . . . by corresponding to each operational process at the time of molding. At the same time, each operational process is controlled by variably controlling the number of revolutions of the drive motor 3.Type: GrantFiled: September 7, 2006Date of Patent: May 29, 2012Assignee: Nissei Plastic Industrial Co., Ltd.Inventors: Hiroshi Yamaura, Yoshimoto Unno
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Patent number: 8168097Abstract: An injection molding machine 1 includes mode selection means 8 that can selectively switch between a first control mode M1 and a second control mode M2. In the first control mode M1, 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 means 5 and 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 means 6 and a pressure target value Pic, whereas, in the second control mode M2, 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 means 7 and that is related to the pump pressure of the hydraulic pump 4 and a pressure target value Ppc.Type: GrantFiled: February 27, 2009Date of Patent: May 1, 2012Assignee: Nissei Plastic Industrial Co., Ltd.Inventors: Takashi Hakoda, Toshimi Kato, Yoshimoto Unno, Hirofumi Murata, Kiyoshi Nakamura
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Patent number: 8163223Abstract: When controlling each operational process in a molding cycle by variably controlling the number of revolutions of a drive motor 3 in a hydraulic pump 2, a hydraulic pump 2 where at least multiple fixed discharge flow rate Qo and Qs can be set is used as the hydraulic pump 2. At the same time, the fixed discharge flow rates Qo . . . are set corresponding to operational processes based upon predetermined conditions in advance, respectively, and the hydraulic pump 2 is switched to the fixed discharge flow rates Qo . . . by corresponding to each operational process at the time of molding. At the same time, each operational process is controlled by variably controlling the number of revolutions of the drive motor 3.Type: GrantFiled: June 17, 2008Date of Patent: April 24, 2012Assignee: Nissei Plastic Industrial Co., Ltd.Inventors: Hiroshi Yamaura, Yoshimoto Unno
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Patent number: 7896637Abstract: When constructing an injection molding machine M that is equipped with hydraulic pumps 2, which control discharge flow rates by variably controlling the number of revolutions of a drive motor 3, and that drives hydraulic actuators 4a . . . by these hydraulic pumps 2; the injection molding machine M is equipped with a hydraulic drive member 6 having multiple hydraulic pumps 2p and 2q, and a hydraulic oil supply circuit 5 jointly or individually supplying hydraulic oil to be discharged from multiple hydraulic pumps 2p and 2q to a hydraulic actuator 4a, 4b, 4c, 4d or 4e selected from the multiple hydraulic actuators 4a . . . .Type: GrantFiled: September 7, 2006Date of Patent: March 1, 2011Assignee: Nissei Plastic Industrial Co., Ltd.Inventors: Hiroshi Yamaura, Yoshimoto Unno
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Publication number: 20090218710Abstract: An injection molding machine 1 includes mode selection means 8 that can selectively switch between a first control mode M1 and a second control mode M2. In the first control mode M1, 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 means 5 and 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 means 6 and a pressure target value Pic, whereas, in the second control mode M2, 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 means 7 and that is related to the pump pressure of the hydraulic pump 4 and a pressure target value Ppc.Type: ApplicationFiled: February 27, 2009Publication date: September 3, 2009Inventors: Takashi HAKODA, Toshimi KATO, Yoshimoto UNNO, Hirofumi MURATA, Kiyoshi NAKAMURA
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Patent number: 7519450Abstract: An actuator is driven by use of a power drive source, while drive output of the power drive source is switched among a plurality of different drive outputs. Values of a physical quantity regarding an operation state of the actuator and a physical quantity regarding energy consumption corresponding to the operation state are detected. One of the drive outputs is selected on the basis of the detected values and in accordance with a predetermined selection method, and the actuator is driven with the selected drive output.Type: GrantFiled: July 7, 2005Date of Patent: April 14, 2009Assignee: Nissei Plastic Industrial Co Ltd.Inventors: Hiroshi Yamaura, Yoshimoto Unno
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Publication number: 20080258326Abstract: When controlling each operational process in a molding cycle by variably controlling the number of revolutions of a drive motor 3 in a hydraulic pump 2, a hydraulic pump 2 where at least multiple fixed discharge flow rate Qo and Qs can be set is used as the hydraulic pump 2. At the same time, the fixed discharge flow rates Qo . . . are set corresponding to operational processes based upon predetermined conditions in advance, respectively, and the hydraulic pump 2 is switched to the fixed discharge flow rates Qo . . . by corresponding to each operational process at the time of molding. At the same time, each operational process is controlled by variably controlling the number of revolutions of the drive motor 3.Type: ApplicationFiled: June 17, 2008Publication date: October 23, 2008Inventors: Hiroshi Yamaura, Yoshimoto Unno
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Publication number: 20070052138Abstract: When controlling each operational process in a molding cycle by variably controlling the number of revolutions of a drive motor 3 in a hydraulic pump 2, a hydraulic pump 2 where at least multiple fixed discharge flow rate Qo and Qs can be set is used as the hydraulic pump 2. At the same time, the fixed discharge flow rates Qo . . . are set corresponding to operational processes based upon predetermined conditions in advance, respectively, and the hydraulic pump 2 is switched to the fixed discharge flow rates Qo . . . by corresponding to each operational process at the time of molding. At the same time, each operational process is controlled by variably controlling the number of revolutions of the drive motor 3.Type: ApplicationFiled: September 7, 2006Publication date: March 8, 2007Inventors: Hiroshi Yamaura, Yoshimoto Unno
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Publication number: 20070054007Abstract: When constructing an injection molding machine M that is equipped with hydraulic pumps 2, which control discharge flow rates by variably controlling the number of revolutions of a drive motor 3, and that drives hydraulic actuators 4a . . . by these hydraulic pumps 2; the injection molding machine M is equipped with a hydraulic drive member 6 having multiple hydraulic pumps 2p and 2q, and a hydraulic oil supply circuit 5 jointly or individually supplying hydraulic oil to be discharged from multiple hydraulic pumps 2p and 2q to a hydraulic actuator 4a, 4b, 4c, 4d or 4e selected from the multiple hydraulic actuators 4a . . . .Type: ApplicationFiled: September 7, 2006Publication date: March 8, 2007Inventors: Hiroshi Yamaura, Yoshimoto Unno
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Publication number: 20060006565Abstract: An actuator is driven by use of a power drive source, while drive output of the power drive source is switched among a plurality of different drive outputs. Values of a physical quantity regarding an operation state of the actuator and a physical quantity regarding energy consumption corresponding to the operation state are detected. One of the drive outputs is selected on the basis of the detected values and in accordance with a predetermined selection method, and the actuator is driven with the selected drive output.Type: ApplicationFiled: July 7, 2005Publication date: January 12, 2006Inventors: Hiroshi Yamaura, Yoshimoto Unno