Abstract: The invention relates to a compressed-air-operated vacuum generator or vacuum gripper having at least two vacuum units, wherein each vacuum unit has a suction chamber, an intake opening which opens into the suction chamber, an outflow opening which opens out of the suction chamber, and at least one drive air opening which opens into the outflow opening between the intake opening and the outflow opening, and wherein the vacuum units operate on the basis of at least two different principles (Venturi, Bernoulli, Coanda, vortex, etc.) for generating a negative pressure.

Abstract: The present invention is directed toward a method for operating a vacuum generator using pressure fluid to generate the vacuum. The vacuum generator has a pressure port for pressure fluid supply, and a suction point. During a work cycle, the pressure fluid supply is activated at least once and then deactivated again at least once. An active period is measured during which the pressure fluid supply is activated during the work cycle.

Abstract: The present invention relates to a method for monitoring the operating state of a device, including a communication circuit and antenna for wireless transmission of signals to and from a base device arranged on the device, including the steps of: transitioning between first and second operating states, wherein the first operating state corresponds to a position of an interfering object in spaced relation to the antenna and the second operating state corresponds to a position of the interfering object closer in relation to the antenna; interference of the signal transmission between the antenna and the base device by the interfering object when in its closer position, wherein the interfering object does not interfere with the signal transmission when in its spaced position; detection of at least one of the occurrence or lack of interference with the signal transmission for determination of a transition between the operating states.

Abstract: The present invention relates to a gripping device for holding articles in place, including a base that has a receiving surface that faces an article for holding it in place, the base having at least one passage guide that leads to a passage opening in the receiving surface, and the receiving surface has at least one nanostructure portion on which a plurality of nanostructure elements are arranged.

Abstract: A device for generating an negative pressure comprises a plurality of ejectors and a receiving device therefor. The receiving device comprises at least one connection for a compressed air line, the connection protruding into a compressed air distribution system to which a compressed air channel of each ejector can be connected, and each ejector being provided with an negative pressure channel that can be connected to the negative pressure system of the ejector. The receiving device forms a holding frame and a quick-change system for the ejectors, and can be connected to the ejectors by means of control lines, and to a machine control system.

Abstract: A pneumatic vacuum generator includes at least one venturi nozzle having a flow cross section which deviates for a circularity. The venturi nozzle may thus have a substantial rectangular or non-circular flow cross section like for example an oval flow cross section or an elliptical flow cross section. At least two plates are disposed in parallel relationship and joined in sandwich construction, with one of the plates constructed to accommodate the venturi nozzle.

Abstract: A vacuum gripper includes a suction plate for gripping an object. The suction plate has a lid and a suction bottom which define a suction chamber there between and engage formfittingly at least on one side within one another via a tongue and groove joint extending in parallel relation to a gripping plane. The tongue and groove joint includes a groove on one of the suction bottom and lid, and a tongue which is formed on the other one of the suction bottom and lid and fits into the groove.

Abstract: The invention relates to a compressed-air-operated vacuum generator or vacuum gripper having at least two vacuum units, wherein each vacuum unit has a suction chamber, an intake opening which opens into the suction chamber, an outflow opening which opens out of the suction chamber, and at least one drive air opening which opens into the outflow opening between the intake opening and the outflow opening, and wherein the vacuum units operate on the basis of at least two different principles (Venturi, Bernoulli, Coanda, vortex, etc.) for generating a negative pressure.

Abstract: A pneumatically actuated area vacuum gripper for gripping and, if necessary, separating workpieces is provided by the present disclosure. In particular, the vacuum gripper is used with thin, flexible workpieces, and has a suction chamber, which has a suction wall with perforations, to be placed on the workpiece. An ejector nozzle has a connection and an outlet, the ejection nozzle being connected to the suction chamber via its connection, and the outlet of the ejector nozzle opening to the outside or into an exhaust air duct, and the suction inlet of the ejector nozzle empties into the suction chamber, whereby the direction of the air stream in the connection coming from the suction chamber corresponds to the direction of the main air conveyance in the ejector nozzle.

Abstract: The invention relates to a vacuum handling device (46) for fixing or transporting work pieces (44) comprising a plurality of components, wherein at least one of the components is provided with an RFID tag (10) and the RFID tag is provided with an RFID chip (14) and an antenna (12), wherein a switching element (16) is provided for the galvanic isolation of the RFID chip and antenna between the RFID chip and the antenna.

Abstract: The invention relates to a vacuum handling device (46) for fixing or transporting work pieces (44) comprising a plurality of components, wherein at least one of the components is provided with an RFID tag (10) and the RFID tag is provided with an RFID chip (14) and an antenna (12), wherein a switching element (16) is provided for the galvanic isolation of the RFID chip and antenna between the RFID chip and the antenna

Abstract: A vacuum gripper includes a suction plate for gripping an object. The suction plate has a lid and a suction bottom which define a suction chamber there between and engage formfittingly at least on one side within one another via a tongue and groove joint extending in parallel relation to a gripping plane. The tongue and groove joint includes a groove on one of the suction bottom and lid, and a tongue which is formed on the other one of the suction bottom and lid and fits into the groove.

Abstract: A pneumatic vacuum generator includes at least one venturi nozzle having a flow cross section which deviates for a circularity. The venturi nozzle may thus have a substantial rectangular or non-circular flow cross section like for example an oval flow cross section or an elliptical flow cross section. At least two plates are disposed in parallel relationship and joined in sandwich construction, with one of the plates constructed to accommodate the venturi nozzle.

Abstract: A device for generating an negative pressure comprises a plurality of ejectors and a receiving device therefor. The receiving device comprises at least one connection for a compressed air line, the connection protruding into a compressed air distribution system to which a compressed air channel of each ejector can be connected, and each ejector being provided with an negative pressure channel that can be connected to the negative pressure system of the ejector. The receiving device forms a holding frame and a quick-change system for the ejectors, and can be connected to the ejectors by means of control lines, and to a machine control system.

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.

Abstract: The invention concerns an underpressure surface gripping device with an extruded profile having a hollow chamber, a vacuum plate which is mounted parallel to the extruded profile, at least one flow through opening which connects the extruded profile to the vacuum plate, and with an ejector as a vacuum generator, wherein the ejector is inserted into the hollow chamber of the extruded profile and the suction opening of the ejector communicates with the flow through opening.

Abstract: A pneumatically actuated area vacuum gripper for gripping and, if necessary, separating workpieces is provided by the present disclosure. In particular, the vacuum gripper is used with thin, flexible workpieces, and has a suction chamber, which has a suction wall with perforations, to be placed on the workpiece. An ejector nozzle has a connection and an outlet, the ejection nozzle being connected to the suction chamber via its connection, and the outlet of the ejector nozzle opening to the outside or into an exhaust air duct, and the suction inlet of the ejector nozzle empties into the suction chamber, whereby the direction of the air stream in the connection coming from the suction chamber corresponds to the direction of the main air conveyance in the ejector nozzle.