PROCEDIMENTO E DISPOSITIVO PER L'ASPORTAZIONE DI FIOCCHI DI FIBRE DA BALLE DI FIBRE TESSILI, PER ESEMPIO DI COTONE, FIBRE ARTIFICIALI O SIMILI

摘要

A method of detaching fiber tufts from an upper surface of fiber bales by a detaching device. Each fiber bale has, prior to performing a detaching operation thereon, a height portion defining an upper zone in which a fiber density increases downwardly; a height portion defining a lower zone in which the fiber density decreases downwardly; and a height portion defining a middle zone in which the fiber density is at a maximum, constant value as viewed vertically. The method includes the steps of propelling the detaching device at a travelling speed above the fiber bales in forward and return passes; detaching fiber tufts from the upper bale surface during the passes; periodically displacing the detaching device with a vertical feed as the bales are consumed; advancing the removed fiber tufts to a fiber tuft advancing device; and varying the travelling speed as a function of the decreasing actual height of the fiber bales.