Feed device for dough blanks, in particular for dough strands preformed for pretzel production and method for feeding dough blanks

摘要

Feed device for dough blanks (3, 3 '), in particular for pretzel-preformed dough strands comprising a first conveyor belt (1) and at least a second conveyor belt (2) connected in series, the dough blanks (3) at the beginning of the feed process on the first conveyor belt (1) are arranged and from the first conveyor belt (1) to the second conveyor belt (2) are passed, wherein the speed of the at least one second conveyor belt (2) by a predetermined amount is higher than the speed of the first conveyor belt, whereby the dough blanks (3) are stretched during the transfer from the first conveyor belt (1) to the second conveyor belt (2) and aligned parallel to the conveying direction of the second conveyor belt (2), the feeding device comprising a sensor (4) corresponding to the first conveyor belt Conveyor (1) facing away from the end of a second conveyor belt (2) transported incoming dough blank is detected and thereby damped, wherein the sensor remains damped until the dough blank is no longer in the detection range of the sensor, wherein based on the Bedämpfungsdauer of the sensor (4) and the conveying speed of the second conveyor belt (2) in a controller, the length of the stretched and parallel to the conveying direction of the second conveyor belt (2) aligned dough blank (3) can be determined and wherein in the event that the determined length of the dough blank (3) exceeds a desired length plus / minus a predetermined length offset or lower, the second conveyor belt (2) so controllable in that the dough blank (3, 3 ') reaches the end of the second conveyor belt (2), where it is transferred by the further rotation of the conveyor belt (2) to a container or to another conveyor belt, whereby the dough blank (3, 3 ') is sorted out, wherein for the case that the determined length of the dough blank (3') of the desired length plus / minus corresponds to a predetermined length offset, the second e conveyor belt (2) is controlled such that the dough blank (3 ') from the second conveyor belt (2) is transported until it with respect to the longitudinal axis of another conveyor belt or a transfer chute for forwarding the dough blanks (3, 3') is arranged centrally on the device for processing the dough blanks.