Patent ID: 9289961
Filing Date: 2016-03-22
CPC Classification: B65B

Claim Text:
1. A method for producing bags containing fiber material, comprising: forming at least one continuous layer of fiber material; separating in succession portions of fiber material from the continuous layer and moving the portions along a predetermined path; feeding each portion of fiber material to respective containment and compaction elements of a first transfer conveyor; feeding an ordered succession of bags for containing respective portions of fiber material to respective supporting elements of a second transfer conveyor; transferring the portions of fiber material from the containment and compaction elements of the first transfer conveyor into respective housings of a third transfer conveyor; transferring the portions of fiber material from the housings of the third transfer conveyor into the respective containment bags carried by supporting elements of the second transfer conveyor; transferring the containment bags housing respective portions of fiber material from the respective supporting elements of the second transfer conveyor to a fourth transfer conveyor; and moving in succession the bags housing respective portions of fiber material to a folding unit at which the bags are closed; providing that the supporting elements of the second transfer conveyor are hollow and are each shaped to receive, fitted around the supporting element, one of the bags for containing a portion of fiber material, and performing both the transfer of the portions of fiber material from the housings of the third transfer conveyor into respective containment bags carried by the supporting elements of the second transfer conveyor and the transfer of the containment bags housing respective portions of fiber material from the respective supporting elements of the second transfer conveyor to the fourth transfer conveyor with a pushing mechanism without interruption.