| 摘要 |
PURPOSE: A unit for controlling vacuum of pickers and a picker apparatus having the unit are provided to prevent fail of a braking pressure in a picker when the picker is vacuum-destructed. CONSTITUTION: A vacuum control unit(100) comprises a connecting passageway, a discharge passageway, a vacuum provider(130), a supply passageway(140), a control valve(150), a pressure controller(160), and an air tank(170). The connecting passageway is connected to a plurality of plurality of pickers. The discharge passageway is connected to the connecting passageway and discharge air inside a picker to form vacuum in the picker. The supply passageway supplies air to the picker through the connecting passageway to destruct the vacuum of the picker. A control valve selectively connects the connecting passageway to a discharge passageway or a supply passageway. |
