Vacuum suction device and operating process for sucking and transporting light objects such as chip elements has valve control of suction and releasing overpressure

摘要

A vacuum suction device comprises a suction head (21) for a workpiece (W) and a two-position valve (24) for applying vacuum (22) or overpressure (23). The releasing overpressure is equal to, or less than, the surrounding pressure so that the workpiece is released by its own weight. An Independent claim is also included for an operating process for the above.