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 flat clothing for a revolving flat of a carding machine includes a foundation and a plurality of clothing tips formed from U-shaped wire hooks penetrating through the foundation and situated in adjacent rows with a row spacing between successive rows. A row offset in the direction of the length of the foundation is defined between the clothing tips in the adjacent rows such that the clothing tips are not situated one behind the other in successive rows. At least two successive zones are defined, wherein each zone has at least three rows of hooks and the row offset of the first zone differs from the row offset of the second zone. A row spacing between each row in the second zone and a following adjacent row, viewed in the fiber running direction, is different from the row spacing between the row and a preceding adjacent row.

A flat clothing for a revolving flat of a carding machine includes a foundation and a plurality of clothing tips formed from U-shaped wire hooks penetrating through the foundation and situated in adjacent rows with a row spacing between successive rows. A row offset in the direction of the length of the foundation is defined between the clothing tips in the adjacent rows such that the clothing tips are not situated one behind the other in successive rows. At least two successive zones are defined, wherein each zone has at least three rows of hooks and the row offset of the first zone differs from the row offset of the second zone. A row spacing between each row in the second zone and a following adjacent row, viewed in the fiber running direction, is different from the row spacing between the row and a preceding adjacent row.

A preparation device prepares a sample of textile fibers, in particular cotton fibers, applicable to analysis and/or measuring apparatuses respectively for analyzing and/or measuring characteristics of the textile fibers forming the sample. The preparation device includes a comb body that can be coupled in a sliding manner along a rectilinear guide that faces a perforated plate against which to press a mass of textile fibers forming protuberances projecting from the holes of the perforated plate. The comb body is arranged to grip tufts of textile fibers from such protuberances. The preparation device also includes at least one brush that is mounted in a sliding manner along a rectilinear guide facing the perforated plate and that is arranged to brush the textile fibers forming the protuberances before the comb body grips the tufts.

The present invention refers to a preparation device (10) for preparing a sample of textile fibers, in particular cotton fibers, applicable to analysis and/or measuring apparatuses respectively for analyzing and/or measuring characteristics of the textile fibers forming said sample, wherein the preparation device (10) comprises a comb body (11) that can be coupled in a sliding manner along a rectilinear guide (12) that faces a perforated plate (13) against which to press a mass (M) of textile fibers forming protuberances projecting from the holes of the perforated plate (13), wherein the comb body (11) is arranged to grip tufts of textile fibers from such protuberances and is characterized in that it comprises at least one brush (14) that is mounted in a sliding manner along a rectilinear guide facing the perforated plate (13) and that is arranged to brush the textile fibers forming the protuberances before the comb body grips said tufts.

A device and a method are provided for machining running surfaces on head end pieces of revolving flats. The device has a base frame with a longitudinal axis and is provided with clamping devices for fixing the revolving flat at at least two points distributed on the longitudinal axis. The device comprises two chip-removal machining devices which are arranged outboard the clamping devices viewed in the direction of the longitudinal axis. A sliding guide is provided for accommodating the clamping devices in the device.

A device and a method are provided for machining running surfaces on head end pieces of revolving flats. The device has a base frame with a longitudinal axis and is provided with clamping devices for fixing the revolving flat at at least two points distributed on the longitudinal axis. The device comprises two chip-removal machining devices which are arranged outboard the clamping devices viewed in the direction of the longitudinal axis. A sliding guide is provided for accommodating the clamping devices in the device.