Batt-forming machine of a batt-forming line of a system for flock fibre treatment, comprising: - at least one inlet pipe for supplying the fibre to be processed; - at least one outlet pipe for the supplying of the processed fibre to a subsequent batt-forming machine or to a subsequent machine for other processing; - at least two silos, operatively connected to the inlet pipe for accumulating the fibre to be processed; - a processing area, down-line from each silo, comprising: a) at least one pair of feeding wheels (20, 22), that rotate respectively around a first axis of rotation, such as to convey the fibres that descend from the silo down-line from said wheels, for example, counter-rotating; b) an opening wheel, disposed down-line of the feeding wheels (20, 22), turning around a second axis of rotation, disposed between and substantially parallel to the first axes of rotation, so that the opening wheel intercepts the fibre driven by the feeding wheels (20, 22); c) a driving roller, disposed down-line of the opening wheel with respect to the fibre flow, turning around a third axis of rotation, superficially covered to engage the fibre and draw it down-line; d) an opening roller, disposed down-line of the driving roller, turning around a fourth axis of rotation, parallel to the second and first axes (W and Z); e) an outlet opening, disposed down-line of the opening roller, from which the open fibre is aspired, in communication with the outlet pipe of the machine; said machine being characterized in that each silo feeds a respective processing area and the respective outlet opening of each of said processing area convey the processed fibre into a same joining pipe, connected to the outlet pipe of the machine. - at least one inlet pipe for supplying the fibre to be processed; - at least one outlet pipe for the supplying of the processed fibre to a subsequent batt-forming machine or to a subsequent machine for other processing; - at least two silos, operatively connected to the inlet pipe for accumulating the fibre to be processed; - a processing area, down-line from each silo, comprising: a) at least one pair of feeding wheels (20, 22), that rotate respectively around a first axis of rotation, such as to convey the fibres that descend from the silo down-line from said wheels, for example, counter-rotating; b) an opening wheel, disposed down-line of the feeding wheels (20, 22), turning around a second axis of rotation, disposed between and substantially parallel to the first axes of rotation, so that the opening wheel intercepts the fibre driven by the feeding wheels (20, 22); c) a driving roller, disposed down-line of the opening wheel with respect to the fibre flow, turning around a third axis of rotation, superficially covered to engage the fibre and draw it down-line; d) an opening roller, disposed down-line of the driving roller, turning around a fourth axis of rotation, parallel to the second and first axes (W and Z); e) an outlet opening, disposed down-line of the opening roller, from which the open fibre is aspired, in communication with the outlet pipe of the machine; said machine being characterized in that each silo feeds a respective processing area and the respective outlet opening of each of said processing area convey the processed fibre into a same joining pipe, connected to the outlet pipe of the machine. a) at least one pair of feeding wheels (20, 22), that rotate respectively around a first axis of rotation, such as to convey the fibres that descend from the silo down-line from said wheels, for example, counter-rotating; b) an opening wheel, disposed down-line of the feeding wheels (20, 22), turning around a second axis of rotation, disposed between and substantially parallel to the first axes of rotation, so that the opening wheel intercepts the fibre driven by the feeding wheels (20, 22); c) a driving roller, disposed down-line of the opening wheel with respect to the fibre flow, turning around a third axis of rotation, superficially covered to engage the fibre and draw it down-line; d) an opening roller, disposed down-line of the driving roller, turning around a fourth axis of rotation, parallel to the second and first axes (W and Z); e) an outlet opening, disposed down-line of the opening roller, from which the open fibre is aspired, in communication with the outlet pipe of the machine;