The invention relates to a method and an apparatus for feeding an installation with fibres, which installation is fed with fibre tufts, the fibre tufts are opened at least partially and fed by means of a feed apparatus to a pneumatic feeding installation, which guides the fibres into the reservoir of at least one fibre-processing machine, especially a flat card, roller card, opener or cleaner.

The invention is characterised in that, by means of a regulating circuit into which the actual pressure values measured and further processed in the pneumatic feeding installation are introduced, and into which the mass flow of the further processed fibres measured and further processed at at least one fibre-processing machine is introduced, the optimal operating point of the installation is determined by means of a regulating algorithm, and a signal is passed to an actuator of the feed apparatus for regulating the amount of fibre tufts.

The invention relates to a method and an apparatus for feeding an installation with fibres, which installation is fed with fibre tufts, the fibre tufts are opened at least partially and fed by means of a feed apparatus to a pneumatic feeding installation, which guides the fibres into the reservoir of at least one fibre-processing machine, especially a flat card, roller card, opener or cleaner.

The invention is characterised in that, by means of a regulating circuit into which the actual pressure values measured and further processed in the pneumatic feeding installation are introduced, and into which the mass flow of the further processed fibres measured and further processed at at least one fibre-processing machine is introduced, the optimal operating point of the installation is determined by means of a regulating algorithm, and a signal is passed to an actuator of the feed apparatus for regulating the amount of fibre tufts.

A device and method for regulating pressure in a flock feed include a storage device disposed for receipt of fiber flocks, an exhaust air fan having a drive, and a controller in communication with the drive. A filling level measurement device and a pressure measurement device are provided in the storage device. The controller is configured to regulate the drive to achieve a target pressure as sensed by the pressure measurement device that is based on a filling level of the fiber flocks determined by the filling level measurement device.

A device and method for regulating pressure in a flock feed include a storage device disposed for receipt of fiber flocks, an exhaust air fan having a drive, and a controller in communication with the drive. A filling level measurement device and a pressure measurement device are provided in the storage device. The controller is configured to regulate the drive to achieve a target pressure as sensed by the pressure measurement device that is based on a filling level of the fiber flocks determined by the filling level measurement device.

A system and corresponding method are provided for controlling production in a blow room, the blow room including a controller, a supplying machine having a supplying part, and a machine to be supplied that has a filling level measurement. The supplying machine and the machine to be supplied are connected to the controller. A production area is defined for the supplying machine and includes a minimum production and a maximum production. Production of the supplying part of the supplying machine is determined based on a filling level of the filling level measurement. When production of the production area drops below the minimum production, the supplying part of the supplying machine is shut down, the shutdown taking place independently of the filling level of the machine to be supplied.

A system and corresponding method are provided for controlling production in a blow room, the blow room including a controller, a supplying machine having a supplying part, and a machine to be supplied that has a filling level measurement. The supplying machine and the machine to be supplied are connected to the controller. A production area is defined for the supplying machine and includes a minimum production and a maximum production. Production of the supplying part of the supplying machine is determined based on a filling level of the filling level measurement. When production of the production area drops below the minimum production, the supplying part of the supplying machine is shut down, the shutdown taking place independently of the filling level of the machine to be supplied.

A system and corresponding method are provided for controlling production in a blow room, the blow room including a controller, a supplying machine having a supplying part, and a machine to be supplied that has a filling level measurement. The supplying machine and the machine to be supplied are connected to the controller. A production area is defined for the supplying machine and includes a minimum production and a maximum production. Production of the supplying part of the supplying machine is determined based on a filling level of the filling level measurement. When production of the production area drops below the minimum production, the supplying part of the supplying machine is shut down, the shutdown taking place independently of the filling level of the machine to be supplied.

A device and method for regulating pressure in a flock feed include a storage device disposed for receipt of fiber flocks, an exhaust air fan having a drive, and a controller in communication with the drive. A filling level measurement device and a pressure measurement device are provided in the storage device. The controller is configured to regulate the drive to achieve a target pressure as sensed by the pressure measurement device that is based on a filling level of the fiber flocks determined by the filling level measurement device.

A device and method for regulating pressure in a flock feed include a storage device disposed for receipt of fiber flocks, an exhaust air fan having a drive, and a controller in communication with the drive. A filling level measurement device and a pressure measurement device are provided in the storage device. The controller is configured to regulate the drive to achieve a target pressure as sensed by the pressure measurement device that is based on a filling level of the fiber flocks determined by the filling level measurement device.

Crosslapper, in particular arranged at the outlet from a carding device producing a web of fibers, in particular nonwoven fibers, comprising a front belt carrying the web of fibers in the crosslapper to an infeed or accumulator carriage, a rear belt carrying the accumulated web to a layering carriage and an apron on an upper strand (2; 2; 2) of which the layering carriage deposits the web accumulated by the accumulator carriage alternately on the bias in one direction and in the other direction to form a lap (N) moving at a speed V1(t) that varies as a function of time, in particular in a periodic manner, the crosslapper also comprising an output belt strand (20; 20; 20) on which the lap (N) leaves the crosslapper at a speed V2(t) that is different from the speed V1(t), in particular at a constant speed, the lap (N) undergoing at least one turn between the upper strand (2; 2; 2) and the output belt strand (20; 20; 20), in particular through 180, around a roller (3.2; 4.1; 3.7) mounted such that it can move in translation along the output belt strand (20; 20; 20), the lap (N) being sandwiched between another strand, turned in the opposite direction to the upper strand (2), of the apron and the output belt strand (20) and/or between another strand, turned in the opposite direction to the upper strand (2; 2), of the apron and an upper strand of an intermediate apron (30; 30) and/or between a lower strand of an intermediate apron (30; 30) and the output belt strand (20; 20).