Method for operating a vacuum handling device
AssigneeJ. Schmalz GmbH
InventorsWalter Dunkmann, Gernot Schmierer
Life of this patent
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Abstract
A method is proposed for operating a vacuum handling device controlled by a programmable controller (39) which can be connected to a machine controller (10), with at least one vacuum generator (28) and with a number of gripper modules (20), which are connected to the vacuum generator and are each equipped with a first pressure sensor (46) and with a control valve (44) for the vacuum in the gripper module, and which are connected to the programmable controller. The control valve in the gripper module is closed in a first switching state (vacuum on) of the programmable controller and is detected up to the control valve (44) by means of a second pressure sensor (78) in the vacuum generator.
Claims20
A method for operating a vacuum handling device controlled by a programmable controller, the programmable controller being connected to a machine controller, the vacuum handling device having at least one vacuum generator and several gripper modules which are connected to the vacuum generator, each gripper module having a first pressure sensor and a control valve for underpressure in a respective gripper module, wherein each gripper module is connected to the programmable controller, the method comprising the steps of:
- a) closing the control valve in a gripper module in a first vacuum on switching state of the programmable controller;
- and
- b) detecting an underpressure between the control valve and the vacuum generator using a second pressure sensor in the vacuum generator.
Dependencies are inferred from the claim text.