In a drafting system (1) for a textile machine, in particular an air-spinning machine, for drafting a strand-shaped fibre band fed to the drafting system, having a plurality of roller pairs arranged in succession in a running direction (A) of the fibre band and each having a top roller (3) and a bottom roller (4), and a weighting device for applying a load to the top roller (3) of the plurality of roller pairs; wherein the respective bottom roller (4) is mounted and held in a housing (2) of the drafting system (1), wherein the respective top roller (3) is mounted and held in the housing (2) of the drafting system (1) by means of a top roller carrier (30) which can be pivoted about a rotary axis.

A drafting system unit for a drafting system of a spinning machine having a first top roller and a second top roller spaced apart therefrom, characterized in that an apron cage to which negative pressure can be applied is arranged between the first top roller and the second top roller for guiding an air-permeable apron in circulation jointly around the apron cage and an apron top roller, the apron top roller being formed by the first top roller or by a third top roller that is assigned to the apron cage and arranged on the same side as the first and second top roller in relation to the fiber band being transported. The apron cage has at least one through-opening, to which negative pressure can be applied, for applying suction air to the fiber band running between the first and second top roller, through the air-permeable apron.

Drafting system unit having a weighting arm and to a weighting arm for a drafting system unit for drafting a fiber band at a workstation of a textile machine, said weighting arm having a support arm and a top roller body, which is detachably mounted on a retaining device connected to the support arm. In order to provide a drafting system having a weighting arm and to provide a weighting arm for a drafting system unit for drafting a fiber band at a workstation of a textile machine, which drafting system and weighting arm can, in a user-friendly manner, be inspected, repaired and/or adapted to the fiber band material to be drafted and allow the top roller bodies to be easily replaced, there is provision for the top roller body to have an actuation section, which protrudes beyond the support arm in longitudinal axis direction of the top roller body.

A spinning machine having several spinning positions, the spinning machine having an air flow supply unit for providing compressed air and/or suction air at the spinning positions and a drafting system support extending along the spinning positions, for detachably arranging drafting systems at the spinning positions. In order to provide a spinning machine that allows compressed air and/or suction air to be supplied to the spinning positions in an energy-efficient manner, it is provided that the drafting system support is designed as a longitudinally channeled tube body having a flow connection to the air flow supply unit and having connection openings assigned to the individual spinning positions.

An apron drafting system for a spinning machine as well as a carrying device for an apron drafting system of a spinning machine, with a first and a second support, each of which is configured for detachably accommodating an apron bridge and/or for rotatably bearing a drawing roller is provided. In order to provide a carrying device for an apron drafting system as well as an apron drafting system of a spinning machine, which enable an apron to be changed quickly, there is provision with the carrying device for the first support to have a base element and a guide section detachably connected to the base element and having a bearing opening for rotatably bearing the drawing roller as well as a first mounting opening for accommodating a first bearing section of the apron bridge.

A supporting frame for a drafting system unit for drafting a fiber band at a workstation of a textile machine as well as a drafting system comprising such a drafting system unit. In order to make a drafting system and a drafting system unit available, the supporting frame has a coupling section and a locking unit for detachably connecting the supporting frame to an assigned workstation.

A supporting frame for a drafting system unit for drafting a fiber band at a workstation of a textile machine as well as a drafting system comprising such a drafting system unit. In order to make a drafting system and a drafting system unit available, the supporting frame has a coupling section and a locking unit for detachably connecting the supporting frame to an assigned workstation.

A drafting system unit for a drafting system of a spinning machine. In a fiber band transport direction (R), the drafting system unit has a first top roller and a second top roller spaced apart therefrom, which are provided for drafting a fiber band, transported from the first to the second top roller, in cooperation with accordingly assigned bottom rollers, the respective axes of rotation of the first and second top roller extending transversely to the fiber band transport direction. The drafting system unit is characterized in that an apron cage to which negative pressure can be applied is arranged between the first top roller and the second top roller for guiding an air-permeable apron in circulation jointly around the apron cage and an apron top roller, the apron top roller being formed by the first top roller or by a third top roller that is assigned to the apron cage and arranged on the same side as the first and second top roller in relation to the fiber band being transported. The apron cage has at least one through-opening, to which negative pressure can be applied, for applying suction air to the fiber band running between the first and second top roller, through the air-permeable apron.

The invention relates to an air jet spinning machine and a drafting system unit for a spinning unit of an air jet spinning machine for producing a thread or roving from a supplied fiber strip, with at least one front roller pair consisting of a front top roller on a load carrier and a driven front bottom roller on a bottom roller carrier and forming a clamping line, and a bearing element arranged on the bottom roller carrier for movably bearing an air jet spinning nozzle. In order to provide a drafting system unit for a spinning unit of an air jet spinning machine and an air jet spinning machine which has a reliable pivotable air jet spinning nozzle which, if necessary, can be released from the bottom roller carrier in a simple manner, it is provided that the bottom roller carrier comprises a bearing element having a free end, via which the air jet spinning nozzle can be received, wherein the bearing element forms a pivot axis for pivoting the air jet spinning nozzle between an operating position and a second position spaced apart therefrom, wherein the bearing element is connected to a portion spaced apart from the free end on the bottom roller carrier.

In a drafting system (1) for a textile machine, in particular an air-spinning machine, for drafting a strand-shaped fibre band fed to the drafting system, having a plurality of roller pairs arranged in succession in a running direction (A) of the fibre band and each having a top roller (3) and a bottom roller (4), and a weighting device for applying a load to the top roller (3) of the plurality of roller pairs; wherein the respective bottom roller (4) is mounted and held in a housing (2) of the drafting system (1), wherein the respective top roller (3) is mounted and held in the housing (2) of the drafting system (1) by means of a top roller carrier (30) which can be pivoted about a rotary axis.