Siemens Aktiengesellschaft

Gerhard Obier

Holger Schererz

Frank Gerstenberg

Werner Frank

Erich Groegor

Joachim Kuehnapfel

The invention relates to a device for the delivery of flat objects to a friction/suction picking device with a suction head, the objects standing in a stack on a thin edge thereof on a support surface arranged on a stop surface and transported in the direction of the picking point using conveyor means. A sensor for measuring the vacuum in the suction head, is arranged on or in the suction head, which is connected to the drive controller on the conveyor means. Depending on the measured vacuum the conveyor means can be controlled such that the front object has an inclination as low as possible with the lowest possible stack pressure on the at least one friction picking device.

Apparatus for feeding flat items

A method for controlling an intermediate stacking device for flat shipments, in particular in letter sorting facilities, comprising a stacking device (SR) on a movable stacking cart (SW), a bottom transporting belt (UB) on which the shipments are positioned crosswise to the belt movement direction, and a separating device with a withdrawal means (AR), as well as a shipment sensor (FH,), which detects the shipments at the separating device. In order to correct without problems a slanted position of the shipment stack at the separating device, the normal operational control of the intermediate stacking device becomes invalid if a predetermined time interval during which no shipments are detected at the withdrawal means (AR) is exceeded, the supply of shipments to the intermediate stacking device is interrupted, the bottom transporting belt (UB) is stopped, and the stacking cart (SW) is put into motion in the direction of the separating device. If a shipment is once more detected at the withdrawal means and taking into account a preferably linearly dependent lag time that depends on the measured filling level of the intermediate stacking device, the compression movement of the stacking cart (SW) is stopped, the supply of shipments to the intermediate stacking device is resumed again and the drives for bottom transporting belt (UB) and stacking cart (SW) are again controlled in the normal operation.

Method for controlling an intermediate stacking device for flat shipments

Device and process for intermediate stacking of items

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Berlin, Germany

Gerhard Obier