Abstract: The present invention relates to a device, such as a carding machine, for processing fibers, said device comprising a cylinder, which is provided with a lining, and at least two carding segments which are arranged one after the other in the direction of rotation at least over an area of the circumference of said cylinder, each of said carding segments being provided with a toothed lining. The present invention aims at improving the efficiency of such a device especially in terms of fiber parallelization.

Abstract: A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.

Abstract: A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process. The yarn includes discontinuous and, optionally, continuous filaments.

Abstract: The present invention relates to a device, such as a carding machine, for processing fibres, said device comprising a cylinder, which is provided with a lining, and at least two carding segments which are arranged one after the other in the direction of rotation at least over an area of the circumference of said cylinder, each of said carding segments being provided with a toothed lining. The present invention aims at improving the efficiency of such a device especially in terms of fibre parallelization.

Abstract: The present invention relates to the application of fiber length measurement in the blowroom or carding room of a spinning mill. A method and an apparatus in a textile processing machine are described in which before and/or after a working element of the textile processing machine the nep count and/or the fiber length (staple) is determined, with an open-loop/closed-loop control unit being provided which receives the values for the fiber length and/or the nep count as input and determines therefrom the optimized machine setting data and outputs the same to at least one actuator of a working element which influences the nep count and/or the staple of the textile processing machine.

Abstract: The present invention relates to the application of fiber length measurement in the blowroom or carding room of a spinning mill. A method and an apparatus in a textile processing machine are described and claimed in which before and/or after a working element of the textile processing machine the nep count and/or the fiber length (staple) is determined, with an open-loop/closed-loop control unit being provided which receives the said values for the fiber length and/or the nep count as input values and determines therefrom the optimized machine setting data and outputs the same to at least one actuator of a working element which influences the nep count and/or the staple of the textile processing machine.

Abstract: A drafting equipment is provided with a small double belt for spinning machines with a fiber bundling zone which follows the pair of output rollers of the main drafting field and is followed by a pair of delivery rollers. A pneumatic compression device is provided between the pair of output rollers and the pair of delivery rollers. A pneumatic compression device is provided with a small perforated belt and a suction device extending on the side of the belt away from the fiber sliver and which sucks air through the fiber sliver between the pair of output rollers and the pair of delivery rollers.

Abstract: A sliver compactor is provided between a drafting roller of a drafting frame and the delivery unit which supplies the sliver to the spinning stations of the spinning machine. The sliver compactor has a shielding element juxtaposed with the perforated moving surface to which suction is applied and which reduces the suction force required to draw the fibers of the sliver into a compact form. The shielding element extends over a plurality of slivers and the respective spinning stations and a number of such shielding elements may be aligned over the length of the machine below the stretching field plane and secured on the machine frame.

Abstract: A sliver compactor is provided between a drafting roller of a drafting frame and the delivery unit which supplies the sliver to the spinning stations of the spinning machine. The sliver compactor has a shielding element juxtaposed with the perforated moving surface to which suction is applied and which reduces the suction force required to draw the fibers of the sliver into a compact form. The shielding element extends over a plurality of slivers and the respective spinning stations and a number of such shielding elements may be aligned over the length of the machine below the stretching field plane and secured on the machine frame.

Abstract: Method of and apparatus for bundling fibers of a sliver in the drafting frame of a spinning machine in which a fiber-bundling zone is provided downstream of the last pair of drafting rollers. The fiber-bundling zone can be formed with a transporter for the sliver, e.g. a belt, provided with an array of perforations having a width which is at least equal to the traversing width of the sliver. The suction orifice juxtaposed with the array of perforations of the belt is inclined to the direction of the travel of the sliver and preferably extends over the full width of the traversing motion. The edge of the orifice can be rectilinear or curved.

Abstract: The invention relates to a process and to a device for the determination of the adhesion tendency of cotton by using cotton samples, whereby the sample taken from the material to be tested is opened down to the individual fiber as in the spinning process, and the fibers thus obtained are deposited on a testing surface under the influence of a certain centrifugal force in the form of a fiber ring. Following complete feeding of the sample, the deposited fiber ring is removed and the quantity of the fibers remaining caught on the testing surface is counted.

Abstract: A drafting equipment is provided with a small double belt for spinning machines with a fiber bundling zone which follows the pair of output rollers of the main drafting field and is followed by a pair of delivery rollers. A pneumatic compression device is provided between the pair of output rollers and the pair of delivery rollers. A pneumatic compression device is provided with a small perforated belt and a suction device extending on the side of the belt away from the fiber sliver and which sucks air through the fiber sliver between the pair of output rollers and the pair of delivery rollers.

Abstract: A process and device for bundling a fiber composite which has been drafted in a drafting device having a pair of output rollers and a pair of delivery rollers gathers together the fiber composite leaving the pair of output rollers in a fiber bundling zone. The fiber composite is conveyed through the fiber bundling zone and supported through the fiber bundling zone on one side by a conveying plane which moves in the direction of conveyance of the fiber composite. A suction air stream is drawn through the fiber bundling zone at substantially a right angle to the conveying direction of the fiber composite. The suction air stream causes the gathering together of the fiber composite in the bundling zone at a width substantially equal to a desired width of the fiber composite.

Abstract: Disclosed is an improved ring and traveller system for spinning and twisting frames. At least the surface of the ring coming into contact with the traveller consists of a polycrystalline ceramic material and the ceramic surface of the ring has a surface structure with rounded grain boundaries which form a storage volume for a self-generating lubricating film of fibers. The traveller consists of a resilient carrier material, especially metal, and has a metal and/or ceramic surface, the hardness of which is greater than the hardness of the ceramic surface of the ring.

Abstract: A yarn splicing device for piecing spun yarns without knots. It contains a yarn splicing chamber and a small pipe through which fluid flows, at a distance from the yarn splicing chamber. The small pipe serves to receive a yarn end and to prepare it for the splicing process. The small pipe has a roughened inner surface which makes contact with the yarn end in a battering manner. In the process for the yarn end preparation, the small pipe is traversed turbulently by a fluid. The yarn end is battered by the turbulent flow against the roughened inner surface of the small pipe until the yarn end is free of twist.

Abstract: A process and a device for the air-conditioning of spinning material located in a container. The spinning material is air-conditioned for processing in a spinning machine which is essentially surrounded by any room climate. The spinning material is exposed in the container to a climate which is independent of the room climate. This causes, at least, the spinning material to be taken next out of the container to be air-conditioned in such manner that it is in an optimal climatic state for such further processing. Outlet openings of at least one air-conditioning duct or an air-conditioning plant are located on the container so that an air-conditioned fluid flows out of the outlet openings on at least the spinning material to be taken out next and the spinning material is in an optimal climatic state for further processing as it is then processed further.

Abstract: An air spinning device with an injection nozzle and a twisting nozzle is adjusted to the highest possible delivery speed for a desired yarn quality by predetermining the desired spinning tension of the yarn. According to the predetermined spinning tension, the highest possible delivery speed is regulated by changing the injection nozzle pressure and/or the spinning draft. Several spinning stations are installed on the air spinning device. At the spinning station, a measuring device to determine the yarn quality is installed between the twisting nozzle and the draw-off rollers. The measuring device is connected to adjusting devices of at least one spinning station. When the yarn quality is changed, the measuring device, together with the adjusting devices influences at least this spinning station.

Abstract: The fiber material (of which a yarn is to be spun) is drawn and combed after carding. In order to determine the combing intensity, a sample is taken from the fiber material after carding and is subjected to an analysis for fiber length and/or impurities. Certain limits are set for fiber length and/or impurities and the combing intensity is adjusted according to the results of the analysis. The fiber material treated with this combing intensity is again drawn and is then opened into individual fibers which are incorporated into a continuously spun and drawn-off yarn.

Abstract: To piece with a spinning device having a pneumatic twisting unit, a yarn end is back-fed from an output side, through the twisting unit, to drawing equipment, and then inserted laterally into a pair of drawing unit output rollers, from where it is drawn off through the twisting unit in the form of a continuous yarn with a rove being incorporated into it. During the back-feeding of the yarn end to the twisting unit input side, the yarn end is conveyed to a grasping device located at the side of the drawing equipment. The grasping device pulls the yarn end for subsequent insertion into the pair of output rollers past such rollers until such end is alongside the drawing equipment. A yarn presenting device is provided to convey to the grasping device the yarn end leaving the twisting unit input side.

Abstract: For piecing to a spinning device operating with a pneumatic torsion element, yarn is fed back through the torsion element into a readiness position alongside a drafting mechanism, while the roving is stopped before the end of the drafting zone. The roving is then released, whereby the forward roving end which is leaving the drafting mechanism, and which typically is rendered unsuitable for piecing due to stoppage of the roving, is sucked off. When a roving segment which remained in the drafting mechanism during the prior roving stoppage has been taken away, the roving and the yarn end are brought together and are simultaneously fed to the torsion element so as to be combined. To carry out this process, the drafting mechanism preferably includes before the end of its drafting zone at least one roving stopping device which may be controllable with feedback from a yarn monitor located adjacent the path of yarn being conveyed to a yarn take-up mechanism, such as a bobbin.