Abstract: In an apparatus for the fibre-sorting or fibre-selection of fibre material which is supplied by means of a supply device to a fibre-sorting device, mechanical means are present which generate a combing action to remove non-clamped constituents such as short fibres. Downstream of the supply device there are arranged at least two rotatably mounted rollers with clamping devices for the fibre bundles, and the supply device comprises a feed unit, which feed unit comprises a feed roller and at least one feed tray defining a nip between said feed roller and said feed tray, and the retaining force in the nip optimally retains the short fibres completely or substantially completely in the nip during separation of a fibre bundle by said clamping devices.

Abstract: In an apparatus and a method for the fibre-sorting or fibre-selection of a fibre bundle comprising textile fibres, especially for combing, which is supplied by means of supply device to a fibre-sorting device, especially a combing device, and which is removed by a take-off device, to enable the productivity to be substantially increased and an improved combed bundle to be obtained, downstream of the supply device there are arranged at least two rotatably mounted rollers rotating rapidly without interruption, which are provided with clamping devices for the fibre bundle, wherein an actuating device for adjusting geometric and/or speed-related variables in the relationship of the rollers to one another are associated with at least one roller.

Abstract: In an apparatus for the fiber-sorting or fiber-selection of a fiber bundle comprising textile fibers, especially for combing, fiber is supplied by a supply device to a fiber-sorting device, especially a combing device. Clamping devices clamp the fiber bundle at a distance from its free end, and a mechanical device combs the free end to loosen and remove non-clamped constituents, for example, short fibers, neps, dust and the like. To increase productivity and obtain an improved combed sliver, downstream of the supply device there are at least two rotatably mounted rollers rotating rapidly without interruption, which are provided with the clamping devices, and measured value sensors for detecting values relating to the fibers or machine settings are connected to a control and regulation device, which is arranged to effect actions in dependence on the measured values.

Abstract: In an apparatus for the fiber-sorting or fiber-selection a fiber bundle which is supplied by means of a supply device to a fiber-sorting device in which clamping devices are provided which clamp the fiber bundle at a distance from its free end, and in which a mechanical device is present which generates a combing action, for removal of the combed fiber material a revolving element is present.

Abstract: In an apparatus for the fiber-sorting or fiber-selection of a fiber bundle comprising textile fibers, especially for combing, which is supplied to a fiber-sorting device, especially a combing device, having clamping devices which clamp the fiber bundle at a distance from its free end, which is combed to remove non-clamped constituents, the clamping devices each comprise two clamping jaws. To increase productivity and to enable an improved combed sliver to be obtained, downstream of the supply device there are arranged at least two rotatably mounted rollers rotating rapidly without interruption, the clamping devices being spaced apart in the region of the periphery of the rollers, and each clamping device comprising at least one nipper part at least partially of a lightweight material. The clamping jaws may have a high coefficient of friction in the region of their clamping surfaces.

Abstract: In an apparatus for the fiber-sorting or fiber-selection of a fiber bundle comprising textile fibers, especially for combing, clamping devices are provided which clamp the fiber bundle at a distance from its free end, and a mechanical arrangement is present which generates a combing action from the clamping site to the free end, in order to loosen and remove non-clamped constituents. To enable productivity to be substantially increased in a simple manner and an improved combed sliver to be obtained, downstream of the supply device there are arranged at least two rotatably mounted rollers, clamping devices being distributed spaced apart in the region of at least one said roller's periphery, and the arrangement for generating a combing action is inside the roller.

Abstract: In an apparatus for the fiber-sorting or fiber-selection of a fiber bundle comprising textile fibers, especially for combing, which is supplied by a supply device to a fiber-sorting device, especially a combing device, having clamping devices which clamp the fiber bundle at a distance from its free end, which is combed to remove non-clamped constituents, the clamping devices each comprise two clamping jaws. To increase productivity and to enable an improved combed sliver to be obtained, downstream of the supply device there are arranged at least two rotatably mounted rollers rotating rapidly without interruption, the clamping devices being spaced apart in the region of the periphery of the rollers, and the clamping jaws of the each clamping device are arranged to be movable in relation to one another and separately drivable.

Abstract: In an apparatus for the fibre-sorting or fibre-selection of a fibre bundle comprising textile fibres, especially for combing, which is supplied to a fibre-sorting device, especially a combing device, having clamping devices which clamp the fibre bundle at a distance from its free end, which is combed to remove non-clamped constituents, the clamping devices each comprise two clamping jaws. To increase productivity and to enable an improved combed sliver to be obtained, downstream of the supply device there are arranged at least two rotatably mounted rollers rotating rapidly without interruption, the clamping devices being spaced apart in the region of the periphery of the rollers, and each clamping device comprising at least one nipper part which is at least partially resilient. The clamping jaws may have a high coefficient of friction in the region of their clamping surfaces.

Abstract: In an apparatus at a carding machine for cotton, synthetic fibers and the like, wherein at least one card flat having a card flat clothing is present, the card flat clothing is attached to the card flat, and the clothing is located opposite a roller, for example the cylinder, and an attaching means is present between the card flat and the card flat clothing. In order to make possible, in simple manner, a dimensionally stable clothed card flat and simpler and faster re-clothing (clothing replacement), at least one hook-and-loop closure is present between the card flat and those regions of the card flat clothing which face the card flat.

Abstract: In an apparatus for the fiber-sorting or fiber-selection of a fiber bundle comprising textile fibers, especially for combing, which is supplied by a supply device to a fiber-sorting device, especially a combing device, having clamping devices, which clamp the fiber bundle at a distance from its free end, for combing to remove non-clamped constituents, at least one take-off device with a sliver-forming element is present, downstream of which is a drafting system. To increase productivity and improve the combed sliver, the fiber-sorting device has at least two rotatably mounted rollers rotating rapidly without interruption, having the clamping devices and between the sliver-forming element and the drafting system the at least one fiber sliver is present in the form of a fiber structure having a width greater than its height, for example, following spreading by a web-spreader.

Abstract: In an apparatus at a spinning preparation machine, especially a flat card, roller card or the like, for the purpose of monitoring, a clothed, rapidly rotating roller lies opposite to at least one clothed and/or non-clothed component, and the spacing a between the components lying opposite to one another is changeable. To avoid contact between the components lying opposite to one another in a simple manner, in order to monitor the spacing, there is located opposite to the clothing of the roller, spaced therefrom, a sensor that is arranged to respond in the event of contact between clothing and sensor.

Abstract: In an apparatus for the fiber-sorting or fiber-selection of fiber material which is supplied by means of a supply device to a fiber-sorting device, and a mechanical device is present which generates a combing action to remove non-clamped constituents such as short fibers, a clamping element is present. Downstream of the supply device there are arranged at least two rotatably mounted rollers with clamping devices for the fiber bundles, and the device for generating a combing action is associated with a said roller, wherein for the suction of the supplied fiber bundles, at least one suction device is associated with the clamping devices in the region of the transfer of the fiber bundle from the supply device to the first roller and/or in the region of the transfer of the fiber material from the first roller to the second roller.

Abstract: An apparatus on a spinning preparation machine for monitoring and/or adjusting clearances at components has a clothed, high-speed roller located facing at least one clothed and/or unclothed component and the clearance between the components facing one another is alterable. The roller and opposed component(s) are electrically isolated with respect to one another and are connected as contact elements to an electrical power supply line in which a measuring device for ascertaining contact is located. In order to avoid an undesirably heavy contact between the components, electric signals are emitted upon contacts with the clothing of the roller and the measuring device is arranged quantitatively to determine the contacts.

Abstract: In an apparatus at a spinning preparation machine, especially a flat card, roller card or the like, a clothed, rapidly rotating roller is located opposite at least one component at a spacing. In order, by means that are simple and that save time, to make it possible to set a modified carding gap when components having different parameters (construction, properties) are replaced, the component has an electronic storage unit in which information relating to the nature of the component is arranged to be stored. A writing device for writing in the information and a reading device for reading out the information may be provided.

Abstract: In an apparatus on a combing machine for monitoring the noil percentage, having a supply device, a combing device for combing out fiber material to be combed and at least one device for forming a combed sliver, at least one arrangement is present for continuous automatic generation of a signal representing the noil percentage when the combing machine is running, the arrangement comprising at least one measuring device for the quantity of supplied fiber material and at least one measuring device for the quantity of combed fiber material and a calculating means for determining the noil percentage. For monitoring and optimization of the noil percentage, the or each measuring device for measuring the amount of combed fiber material may comprise a measuring device for a comber sliver having a feeler element or a contactless sensor.

Abstract: In a device on a drafting system for textile fiber slivers with weighting of the upper rolls of the drafting system which comprises roll pairs arranged one behind the other, the pairs having lower and upper rolls, the rotating journals at the ends of the upper roll are mounted by means of bearing elements and the bearing elements each have at least one rolling-element bearing having an immovable outer housing (outer ring) and an internal rotational body (inner ring). In order to provide a structurally simple way in which the bearing housings can be mounted on or removed from the presser roll in a simple, quick and reliable manner, the bearing elements are in the form of rolling-element bearings and there is a coupling between the journal and the rotational body.

Abstract: In a device on a draw frame having a drafting system for textile fiber slivers with weighting of the upper rolls of the drafting system which comprises roll pairs arranged one behind the other, the pairs having lower and upper rolls, the rotating journals at the ends of the upper roll are mounted by means of bearing elements and the bearing elements each have at least one deep-groove ball bearing having an immovable outer housing (outer ring) and an internal rotational body (inner ring). In order to provide a structurally simple way in which the bearing housings can be mounted on or removed from the presser roll in a simple, quick and reliable manner, the bearing elements are in the form of deep-groove ball bearings and there is a coupling between the journal and the rotational body.

Abstract: In a device on a spinning preparation machine, having a drafting system for drawing at least one fibre silver with drafting system rollers, forming drafting roller pairs, having power transmission means for driving the drafting system rollers and having a drive motor, the drive of the drafting system rollers is effected from different sides. In order to reduce the number of drive elements and to effect a substantial improvement in efficiency, the drive motor has two rotating drive elements, the drive of at least one roller pair being effected from one side by the first drive element and the drive of at least one other roller pair being effected from the other side by the second drive element.

Abstract: In an apparatus for the fiber-sorting or fiber-selection of a fiber bundle, especially for combing, which is supplied by means of supply device to a fiber-sorting device, especially a combing device, in which a mechanical device is present which generates a combing action to loosen and remove non-clamped constituents, and a clamping element is present for transfer of the supplied fiber material. To enable productivity to be increased in a simple manner and an improved combed sliver to be obtained, downstream of the supply device there are arranged two rotatably mounted rollers, which are provided with clamping devices for the fiber material having clamping elements that are distributed spaced apart in the region of the roller periphery and co-operate with counter-elements, the counter-elements in the case of the first roller being arranged opposite the roller periphery and in the case of the second roller on or in the roller.

Abstract: A saw-tooth clothing for rollers and/or cylinders of flat cards or roller cards has a foot region and an adjoining tooth region (blade) in which teeth have been formed by cutting, with a tooth front a tooth back and two side flanks, wherein between the tooth back and the tooth front of two adjacent teeth there is a gullet and the teeth consist of at least two portions, with a first portion, forming a technologically effective region. In order to provide a clothing that retains a high level of aggressiveness over its lifetime, the first portion of the tooth front is convex or approximately convex in the direction of movement of the clothing.