System for arranging objects at a multi-entrance work group , comprising: - a conveyor adapted to convey the oriented objects in a single row along a conveying path up to a pickup section of the conveying path , - a screw distributor arranged at the pickup section and extending along a predetermined number of entrance points of the multi-entrance work group , said screw distributor comprising a helical wall shaped and operable in rotation so as to engage a number of said objects corresponding to the predetermined number of entrance points and position each of the engaged objects in one of said entrance points , respectively, characterized in that the system is comprising : - an orientation device for orienting the objects with a desired orientation, and in that - the conveyor is connected to the orientation device , and in that the conveyor comprises: - a support structure forming a channel extended along the conveyor path and adapted to receive a single row of objects , and - one or more support and sliding surfaces extended along the conveyor path and adapted to support the objects in the channel , wherein the single objects are supported in the channel with an open end facing upwards and with a closed end facing downwards, - a blowing system which directs one or more air flows into the channel in such a way as to move the objects along the conveyor path and to exercise on them, in the pickup section , an accumulation thrust in pressing contact against each other in an output direction towards the screw conveyor . - a conveyor adapted to convey the oriented objects in a single row along a conveying path up to a pickup section of the conveying path , - a screw distributor arranged at the pickup section and extending along a predetermined number of entrance points of the multi-entrance work group , said screw distributor comprising a helical wall shaped and operable in rotation so as to engage a number of said objects corresponding to the predetermined number of entrance points and position each of the engaged objects in one of said entrance points , respectively, - an orientation device for orienting the objects with a desired orientation, and in that - the conveyor is connected to the orientation device , and in that the conveyor comprises: - a support structure forming a channel extended along the conveyor path and adapted to receive a single row of objects , and - one or more support and sliding surfaces extended along the conveyor path and adapted to support the objects in the channel , wherein the single objects are supported in the channel with an open end facing upwards and with a closed end facing downwards, - a blowing system which directs one or more air flows into the channel in such a way as to move the objects along the conveyor path and to exercise on them, in the pickup section , an accumulation thrust in pressing contact against each other in an output direction towards the screw conveyor . - a support structure forming a channel extended along the conveyor path and adapted to receive a single row of objects , and - one or more support and sliding surfaces extended along the conveyor path and adapted to support the objects in the channel , wherein the single objects are supported in the channel with an open end facing upwards and with a closed end facing downwards, - a blowing system which directs one or more air flows into the channel in such a way as to move the objects along the conveyor path and to exercise on them, in the pickup section , an accumulation thrust in pressing contact against each other in an output direction towards the screw conveyor . <EOS>