Patents by Inventor Atsushi Shirasaki
Atsushi Shirasaki 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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Publication number: 20240066763Abstract: There is provided an apparatus for taking out a molded product that facilitates setting of a user-set lower limit value while maintaining on-off control. A negative pressure control portion includes a determining portion for determining a pressure valve resumption time period that is used to resume a suctioning operation such that an inflection point does not become lower than a user-set lower limit value. The negative pressure control portion continuously performs an off operation, which is performed to keep a pressure valve closed until the pressure valve resumption time period elapses after the suctioning operation is stopped, and an on operation, which is performed to open the pressure valve and keep the pressure valve open until a negative pressure reaches a stable value or an upper limit set value, until suctioning of a molded product is canceled.Type: ApplicationFiled: August 21, 2023Publication date: February 29, 2024Inventors: Hiroki Kida, Atsushi Shirasaki, Kazutaka Ando
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Publication number: 20220176553Abstract: A conveying apparatus that facilitates setting of an operation mode and setting of appropriate conditions during teaching is provided. An input determination section determines whether or not a combination of a conveyable weight and an operation mode input from an input portion is appropriate. A motor parameter determination section determines one or more motor parameters of at least one servoamplifier for one or more servomotors based on the operation mode and the conveyable weight determined as appropriate by the input determination section. The one or more motor parameters include a maximum speed and a maximum acceleration of the one or more servomotors. A parameter change section allows a speed and an acceleration of the one or more servomotors to be changed up to the maximum speed and the maximum acceleration, respectively.Type: ApplicationFiled: December 6, 2021Publication date: June 9, 2022Inventors: Fumitake Watanabe, Atsushi Shirasaki, Kazutaka Ando
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Patent number: 10987834Abstract: There is provided an apparatus for taking out a molded product, the apparatus being capable of suppressing displacement vibration of an attachment mounted at a leading end of an approach frame by means of active control using an electromagnetic actuator that has necessary power. One or more electromagnetic actuators are disposed at a portion of the approach frame, positioned opposite to the attachment with respect to a movable base. An active vibration suppressing system suppresses the displacement vibration of the attachment by causing the one or more electromagnetic actuators to generate a vibration in the same phase as the displacement vibration of the attachment.Type: GrantFiled: July 19, 2019Date of Patent: April 27, 2021Assignee: YUSHIN PRECISION EQUIPMENT CO., LTD.Inventors: Fumitake Watanabe, Kazutaka Ando, Atsushi Shirasaki
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Teaching method for system for taking out molded product and apparatus for taking out molded product
Patent number: 10976727Abstract: An image display device displays an image such that a pair of reference symmetric structure portions, e.g. a pair of guide pins, are included in a captured image displayed on a display section, the pair of reference symmetric structure portions being located symmetrically with respect to a second virtual plane which extends in the opening direction and the vertical direction and includes a virtual center line of the molding apparatus which extends in the opening direction. A teaching execution section is used to determine the lateral position of an approach frame in the take-out operation by changing the position of the approach frame such that the center of an imaging range is located at a middle position between the pair of reference symmetric structure portions included in the captured image.Type: GrantFiled: September 10, 2020Date of Patent: April 13, 2021Assignee: YUSHIN PRECISION EQUIPMENT CO., LTD.Inventors: Fumitake Watanabe, Atsushi Shirasaki, Kazutaka Ando -
TEACHING METHOD FOR SYSTEM FOR TAKING OUT MOLDED PRODUCT AND APPARATUS FOR TAKING OUT MOLDED PRODUCT
Publication number: 20210080933Abstract: An image display device displays an image such that a pair of reference symmetric structure portions, e.g. a pair of guide pins, are included in a captured image displayed on a display section, the pair of reference symmetric structure portions being located symmetrically with respect to a second virtual plane which extends in the opening direction and the vertical direction and includes a virtual center line of the molding apparatus which extends in the opening direction. A teaching execution section is used to determine the lateral position of an approach frame in the take-out operation by changing the position of the approach frame such that the center of an imaging range is located at a middle position between the pair of reference symmetric structure portions included in the captured image.Type: ApplicationFiled: September 10, 2020Publication date: March 18, 2021Inventors: Fumitake Watanabe, Atsushi Shirasaki, Kazutaka Ando -
Patent number: 10603829Abstract: An apparatus for taking out a molded product is provided, the apparatus being capable of suppressing displacement vibration of an attachment mounted at a leading end of each of one or more approach frames by active control using one or more electromagnetic actuators. The apparatus includes an active vibration suppressing system. One or more electromagnetic actuators are mounted to the attachment of each approach frame or each approach frame.Type: GrantFiled: December 6, 2016Date of Patent: March 31, 2020Assignee: YUSHIN PRECISION EQUIPMENT CO., LTD.Inventors: Fumitake Watanabe, Atsushi Shirasaki, Takayo Kotani
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Patent number: 10486342Abstract: There is provided an apparatus for taking out a molded product, the apparatus being capable of suppressing displacement vibration of an attachment mounted at a leading end of an approach frame by means of active control using an electromagnetic actuator that has necessary power. One or more electromagnetic actuators are disposed at a portion of the approach frame, positioned opposite to the attachment with respect to a movable base. An active vibration suppressing system suppresses the displacement vibration of the attachment by causing the one or more electromagnetic actuators to generate a vibration in the same phase as the displacement vibration of the attachment.Type: GrantFiled: December 19, 2017Date of Patent: November 26, 2019Assignee: YUSHIN PRECISION EQUIPMENT CO., LTD.Inventors: Fumitake Watanabe, Kazutaka Ando, Atsushi Shirasaki
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Publication number: 20190337195Abstract: There is provided an apparatus for taking out a molded product, the apparatus being capable of suppressing displacement vibration of an attachment mounted at a leading end of an approach frame by means of active control using an electromagnetic actuator that has necessary power. One or more electromagnetic actuators are disposed at a portion of the approach frame, positioned opposite to the attachment with respect to a movable base. An active vibration suppressing system suppresses the displacement vibration of the attachment by causing the one or more electromagnetic actuators to generate a vibration in the same phase as the displacement vibration of the attachment.Type: ApplicationFiled: July 19, 2019Publication date: November 7, 2019Inventors: Fumitake Watanabe, Kazutaka Ando, Atsushi Shirasaki
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Patent number: 10377059Abstract: An apparatus for taking out a molded product that is capable of suppressing displacement vibration of an attachment in a shorter time than ever without using a large-scaled electric actuator. An active controller performs active control in conjunction with the positioning, control by the servomotor. At the beginning of the active control, the positioning control is primarily performed by the servomotor, and then the active control is positively performed by the active controller using an electric actuator. Compared with when only the active control is performed for vibration suppression, a lighter and smaller electric actuator can be employed.Type: GrantFiled: August 16, 2017Date of Patent: August 13, 2019Assignee: YUSHIN PRECISION EQUIPMENT CO., LTD.Inventors: Fumitake Watanabe, Atsushi Shirasaki, Koji Tachibana
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Patent number: 10377072Abstract: An apparatus for taking out a molded product that is capable of suppressing displacement vibration of an attachment in a shorter time than ever without using a large-scaled electric actuator. An active controller starts active control after the amplitude of displacement vibration of the take-out head as an attachment has been attenuated to a predetermined setting by means of positioning control by a servomotor or when the amplitude can be considered as having been attenuated to the predetermined setting. The positioning control is first performed by the servomotor, and then the active control is performed by the active controller using an electric actuator which is light in weight and small in size.Type: GrantFiled: August 14, 2017Date of Patent: August 13, 2019Assignee: YUSHIN PRECISION EQUIPMENT CO., LTD.Inventors: Fumitake Watanabe, Atsushi Shirasaki, Koji Tachibana
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Publication number: 20180178417Abstract: There is provided an apparatus for taking out a molded product, the apparatus being capable of suppressing displacement vibration of an attachment mounted at a leading end of an approach frame by means of active control using an electromagnetic actuator that has necessary power. One or more electromagnetic actuators are disposed at a portion of the approach frame, positioned opposite to the attachment with respect to a movable base. An active vibration suppressing system suppresses the displacement vibration of the attachment by causing the one or more electromagnetic actuators to generate a vibration in the same phase as the displacement vibration of the attachment.Type: ApplicationFiled: December 19, 2017Publication date: June 28, 2018Inventors: Fumitake Watanabe, Kazutaka Ando, Atsushi Shirasaki
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Publication number: 20180050478Abstract: An apparatus for taking out a molded product that is capable of suppressing displacement vibration of an attachment in a shorter time than ever without using a large-scaled electric actuator. An active controller starts active control after the amplitude of displacement vibration of the take-out head as an attachment has been attenuated to a predetermined setting by means of positioning control by a servomotor or when the amplitude can be considered as having been attenuated to the predetermined setting. The positioning control is first performed by the servomotor, and then the active control is performed by the active controller using an electric actuator which is light in weight and small in size.Type: ApplicationFiled: August 14, 2017Publication date: February 22, 2018Inventors: Fumitake Watanabe, Atsushi Shirasaki, Koji Tachibana
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Publication number: 20180050470Abstract: An apparatus for taking out a molded product that is capable of suppressing displacement vibration of an attachment in a shorter time than ever without using a large-scaled electric actuator. An active controller performs active control in conjunction with the positioning, control by the servomotor. At the beginning of the active control, the positioning control is primarily performed by the servomotor, and then the active control is positively performed by the active controller using an electric actuator. Compared with when only the active control is performed for vibration suppression, a lighter and smaller electric actuator can be employed.Type: ApplicationFiled: August 16, 2017Publication date: February 22, 2018Inventors: Fumitake Watanabe, Atsushi Shirasaki, Koji Tachibana
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Publication number: 20170165888Abstract: An apparatus for taking out a molded product is provided, the apparatus being capable of suppressing displacement vibration of an attachment mounted at a leading end of each of one or more approach frames by active control using one or more electromagnetic actuators. The apparatus includes an active vibration suppressing system. One or more electromagnetic actuators are mounted to the attachment of each approach frame or each approach frame.Type: ApplicationFiled: December 6, 2016Publication date: June 15, 2017Inventors: Fumitake Watanabe, Atsushi Shirasaki, Takayo Kotani