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US 10,377,059 B2Granted
Apparatus for taking out molded product
AssigneeYushin Precision Equipment Co., Ltd.
InventorsFumitake Watanabe, Atsushi Shirasaki, Koji Tachibana
Life of this patent
Estimating the term…
Abstract
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.
Claims27
An apparatus for taking out a molded product, comprising:
- a positioning servo device using a servomotor;
- an approach frame controlled by the positioning servo device and having an attachment mounted thereon;
- a displacement vibration detector operable to detect a displacement vibration of the attachment;
- and,
- an active controller including an electric actuator and configured to perform active control to suppress the displacement vibration of the attachment by causing the electric actuator to apply to the attachment a vibration having an antiphase to the displacement vibration detected by the displacement vibration detector, wherein:
- the active controller performs the active control in conjunction with at least positioning control performed by the positioning servo device;
- and
- the active controller performs limited active control with a lower output than a maximum output from the electric actuator until an amplitude of the displacement vibration has been attenuated to a predetermined setting.
5 more elements
An apparatus for taking out a molded product, comprising:
- a positioning servo device using a servomotor;
- an approach frame controlled by the positioning servo device and having an attachment mounted thereon;
- a displacement vibration detector operable to detect a displacement vibration of the attachment;
- and,
- an active controller including an electric actuator and configured to perform active control to suppress the displacement vibration of the attachment by causing the electric actuator to apply to the attachment a vibration having an antiphase to the displacement vibration detected by the displacement vibration detector, wherein:
- the active controller performs the active control in conjunction with at least positioning control performed by the positioning servo device;
- and,
- the active controller performs limited active control with a lower output than a maximum output from the electric actuator until an amplitude of the displacement vibration can be considered as having been attenuated to a predetermined setting.
5 more elements
An apparatus for taking out a molded product comprising:
- a belt transport mechanism or a rope transport mechanism driven by a servomotor;
- a pull-out frame;
- a movable base movably mounted on the pull-out frame;
- a lift frame mounted on the movable base;
- a take-out head attached to a leading end of the lift frame;
- a displacement vibration detector operable to detect a displacement vibration of the take-out head;
- and
- an active controller including an electric actuator and configured to perform active control to suppress a displacement vibration of the take-out head by causing the electric actuator to apply to the take-out head a vibration having an antiphase to the displacement vibration detected by the displacement vibration detector, wherein:
- the active controller starts the active control in conjunction with positioning control performed by the servomotor, but performs the active control with a lower output than a maximum output from the electric actuator until an amplitude of the displacement vibration of the take-out head has been attenuated to a predetermined setting by means of the servomotor's function of positioning control and the active control.
6 more elements
An apparatus for taking out a molded product comprising:
- a belt transport mechanism or a rope transport mechanism driven by a servomotor;
- a pull-out frame;
- a movable base movably mounted on the pull-out frame;
- a lift frame mounted on the movable base;
- a take-out head attached to a leading end of the lift frame;
- a displacement vibration detector operable to detect a displacement vibration of the take-out head;
- and
- an active controller including an electric actuator and configured to perform active control to suppress a displacement vibration of the take-out head by causing the electric actuator to apply to the take-out head a vibration having an antiphase to the displacement vibration detected by the displacement vibration detector, wherein:
- the active controller starts the active control in conjunction with positioning control performed by the servomotor, but performs limited active control with a lower output than a maximum output from the electric actuator until an amplitude of the displacement vibration can be considered as having been attenuated to a predetermined setting by means of the servomotor's function of positioning control and the active control.
6 more elements
Dependencies are inferred from the claim text.