Abstract: A fastening mechanism is provided to detachably fasten and position a compaction module on a drafting unit of a spinning machine, wherein the compaction module has a carrier, which is provided with at least one suction channel that is connected to suction inserts of compaction elements that are movably mounted on the carrier. A coupling device using the fastening mechanism. In order to ensure simple and positionally accurate attachment of a compaction module, the fastening mechanism is composed of at least one clamping element that has retaining elements for fixed and positioned fastening on the spinning machine and is provided with a first receiving slot, which is open on one side and has a retaining section, by means of which a retaining element fastened on the carrier can form a positive-fitting clamped connection.

Abstract: A cleaner for a fiber bundle feeder, which nips and discharges a strip of fiber bundle with a top roller and a bottom roller, in a fore-spinning frame includes a support member located above the top roller and a tubular clearer having an inner diameter that is greater than an outer diameter of the support member. The tubular clearer is rotatable around the support member by the top roller such that the tubular clearer is located at a position where the tubular clearer is in contact with the top roller and a position where the tubular clearer is separated from the top roller. The tubular clearer is configured to block a fiber. A suction unit is configured to draw in the fiber that has been blocked by the tubular clearer.

Abstract: The invention relates to a compacting unit (VM) for compacting a fiber composite supplied by a drafting unit (2) of a spinning machine, wherein the compacting unit (VM) has a beam (20) on which at least one suction drum (17) equipped with a suction zone (Z) is rotatably mounted on an axle (22) and a clamping roller (33) mounted on the beam (20) is in contact with the suction drum to form a clamping line (P) at the end of the suction zone (Z) under the action of a pressure element (F2) mounted on the beam. To improve the known devices of loading mechanisms for clamping rollers on suction drums (17), it is proposed that the clamping roller (33) is mounted so it is rotationally movable on a pressure arm (72) which is equipped with a spring element (F2) and is mounted on the beam (20) so it can pivot over a pivot axis (24).

Abstract: A device for transporting fibre material between a drawing frame and a loop-forming machine is described. The device contains at least two transport units which are disposed in succession and have respectively one inlet- and outlet opening, said transport units being formed from respectively one twisting member (16a, 16b, 16c) and one transport pipe (17a, 17b, 17c) connected thereto, there being provided between an outlet end (28) of a preceding transport unit (16a, 17a) and the inlet end of a subsequent transport unit (16b, 17b) a gap (27a, 27b) which is intended for forming an air removal opening. According to the invention, a suction device (31a, 31b) is disposed in the region of this gap (27a, 27b) (FIG. 4).

Abstract: A method and apparatus are provided for removing broken filaments from a continuous filament tow (60) traveling at a tow velocity between a source and a collector. The tow (60) is contacted with a rotatable, cylindrical roller (13), having an axis of rotation and an outer surface, located in the path of travel by the tow from the source to the collector. The axis of rotation is oriented generally perpendicular to the direction of travel of the tow (60). The roller (13) rotates in a direction counter to the direction of travel of the tow (60) to lift broken fibers from the tow. The lifted broken fibers are entrained in an airflow created by a tubular vacuum header (12) to remove the broken fibers from the tow.

Abstract: A drafting frame is provided with at least one compaction unit in which a belt with a perforation under suction serves to draw together the fibers of a drafted roving. The belt is juxtaposed with a stripper spaced from the belt to remove fiber accommodations thereon. The gap between the stripper edge and the belt is adjustable.

Abstract: A textile machine is provided with drafting equipment for drafting fiber material. The drafting equipment includes a suction device disposed to remove dirt separated from the fiber material. The textile machine further includes a guiding device configured to guide fiber material into an inlet of the drafting equipment. The guiding device further includes a dirt separating device configured therewith so that dirt particles are separated from the fiber material prior to the fiber material reaching the inlet of the drafting equipment.

Abstract: A fluff cleaning truck moves along the textile machine being operated to efficiently and automatically remove fluff. The cleaning truck is loaded with cleaning members and travels along the frame of a textile machine and stops at a desired position to clean at all once desired portions of the textile machine being operated by unit of plural spindles.

Abstract: In the case of an arrangement for the cleaning of the circumferential surface of a delivery roller pair of a drafting unit of a spinning machine, devices are provided for the reinforcing of the cleaning effect while the drafting unit starts up again after a stoppage. Heating devices are also disclosed for heating the pressure rollers before a piecing operation is started.

Abstract: In the case of a spinning machine having a plurality of drafting units arranged next to one another which each comprise a stripping device, a cleaning device for the stripping devices is provided which can be moved along the spinning machine. The cleaning device, in each case, moves the stripping devices from an operating position into a cleaning position, in which the cleaning of the stripping device is carried out.

Abstract: A unit drafting mechanism of a spinning machine, having at least one unit drafting mechanism and provided with a pair of slide metals disposed on roller stands facing each other, and a plurality of bottom rollers and top rollers journaled on these slide metals in a rotatable condition, wherein each bottom roller is provided with an axial air passage formed coaxially with its center axis, air jet apertures are radially formed at both end portions near the bearing bores of the slide metals, each aperture is connected to the axial air passage, and the axial air passage is connected to a source of compressed air, whereby the possible deposition of flies in the circumference around the journal portions of the draft rollers can be effectively eliminated by continuously or intermittently supplying compressed air through the axial air passage of the bottom rollers.

Abstract: In the case of a drafting unit for a spinning machine, a loading support is provided which has two arms extending in parallel with respect to one another at a distance which accommodate the holding devices for the shafts of the pressure roller twins and which are reinforced to form a frame by means of cross-struts. In addition, a cover is provided which covers the loading support and the pressure rollers and which can be swiveled away without interrupting the spinning operation.

Abstract: Known pneumatic pipe conveyor installations for fibres, particularly for textile fibre strands, comprise a conveyor pipe and a selectively operable feeder apparatus for feeding the fibres to the inlet opening of the conveyor pipe.For permitting the feeder apparatus to be automatically stopped in response to the formation of a fibre congestion adjacent the inlet opening of the conveyor pipe, there is provided a pressure-receiving surface (6) at least partially surrounding the inlet opening (5) of the conveyor pipe (2) and operatively connected to a switch (7) adapted to generate a stop signal for stopping operation of the feeder apparatus (3) in response to the pressure acting on the pressure-receiving surface (6) exceeding a predetermined value.The pneumatic pipe conveyor installation is useful for conveying fibre strands or slubbings in the textile industry.

Abstract: An apparatus for making a yarn consists of at least one ring spinning mechanism and a drawing mechanism, which precedes the ring spinning mechanism and defines at least one draft path for drawing a fibrous roving and includes two delivery rollers defining a clamping nip for the drawn roving, wherein one of said delivery rollers constitutes behind the clamping nip a guiding surface for deflecting the drawn roving. In order to increase the strength of the yarn, it is proposed that the delivery roller which constitutes the guiding surface for deflecting the roving constitutes at least near the delivery end of the guiding surface a slideway for guiding the roving transversely to its axis as the roving is twisted between the ring spinning mechanism and the drawing mechanism.

Abstract: An arrangement for mounting a suction tube on a fly frame, roving frame, ring spinning machine or the like for collecting broken ends of yarn at the outlet rollers of the machine. The suction tube has a suction end and an opposite end connected through a flexible sealing sleeve to a collection chamber, with the sleeve permitting the suction tube to pivot between different positions. A mounting rod is secured to and extends between the stanchions of the machine frame intermediate the collection chamber and the outlet rollers, and a support arrangement is mounted on the rod and includes a retaining mechanism for positioning the suction tube and releasably retaining it in an operative position in which the suction end is proximal the outlet rollers and an inoperative position in which the suction end is spaced from the outlet rollers. In one embodiment the suction tube is pivotally mounted on one arm of the support and releasably retained in a slot in another arm of the support.

Abstract: A suction tube for a fly frame, roving frame, ring spinning machine or the like for collecting broken ends of yarn at the outlet rollers of the machine. The suction tube is connected to a collection chamber through a flexible sealing sleeve that permits the suction tube to pivot between its operative and inoperative positions. The suction tube comprises a suction end disposed under the bottom roller of the outlet rollers that has a body portion formed with a suction opening therein, an opposite end connected to the flexible sealing sleeve, and a pair of side walls projecting upwardly from the suction end body portion toward the bottom roller and longitudinally beyond the suction opening on opposite sides of the yarn for confining the suction substantially to the bottom roller and the yarn path.

Abstract: A textile comber drawbox shut-off and method are disclosed for terminating the supply of suction air to the drawbox during doffing. Suction air shut-off assemblies B are placed in suction lines 56 leading to vacuum cleaning nozzles 50, 52 of the drawback which clean coiler units A during drawing off of combed sliver 48. Pivotal flapper valves C are tied together by air cylinder D for simultaneous operation. In accordance with the method, upon a prescribed amount of sliver being deposited in cans 26, the comber and supply of suction air are stopped. Following doffing of the full cans, the comber is restarted and the supply of suction air remains shut off by closed valves C. After approximately 60 seconds, of high operation speed, the closure valves C are simultaneously actuated to once again establish suction air in drawbox enclosure 28 for cleaning.

Abstract: In an apparatus for advancing a bundle of filaments, a pair of rolls defines a nip through which the bundle passes. A blower blows a stream of gas across an outer periphery of at least one of the rolls in a direction opposite the direction of rotation of that roll to dislodge adhering filaments therefrom. This prevents filaments from lapping the roll. The gas stream forms an obtuse angle with a radius extending from the point of intersection of the gas stream and the roll periphery.

Abstract: A method for reducing broken fibers on the surface of a carbon fiber bundle involves passing the yarn past a suction nozzle having an extended trailing edge which impacts the broken fibers as they pass the slot breaking off the fibers. The broken fibers are transported to a disposal station. The differential in elevation of the leading and trailing edges of the intake slot of the nozzle provide an exposed impacting edge.

Abstract: The spinning machine comprises a drafting frame for drawing sliver and at least one fiber suction station connected to a vacuum source associated with this drafting frame. To save energy each fiber suction station is provided with a sensing means for detection of broken fiber or roving and throttling means for throttling the suction. The throttling means is adjustable to a throttled position in the air stream which considerably reduces the air flowing into the fiber suction duct. This throttling means is also automatically disengagable into a position resulting in a considerably increased air flow rate following detection of broken fiber or roving by the sensing means.

Abstract: Dust extraction apparatus for a drawframe of the type comprising a pair of table-like creels (3), on each of which are disposed a set of bollards (5) arranged such that multiple slivers of cotton can be drawn in parallel relationship into a set of differential drafting rollers (2), the dust extraction apparatus comprising a plurality of air inlet vents positioned, for example, on each creel table at or around each bollard and at or around each guide-fork (20), and further air inlet vents, for example, at or around each set of differential drafting rollers, each vent being connected to outlet ducting (6, 9, 12) providing substantially constant suction and incorporating a filter adapted to continuously remove particles of dust etc. from the air within the ducting at a substantially constant rate.

Abstract: In order to remove broken threads and debris from textile drawing equipment having a drawing cylinder, a suction pipe connected to an air pressure sink is provided with a triangular suction opening at the drawing cylinder for removing the broken threads and debris. For substantially improved performance at essentially the same air throughput, the suction pipe, in continuation of its triangular suction opening, is provided with a triangular cross-section being congruent with the triangular suction opening and extending along a major portion of the length of the suction pipe, such as to the vicinity of its connection to the air pressure sink.

Abstract: A device for interrupting the feed of a roving to drawing frames of a thread spinning machine of the type wherein each drawing frame comprises a plurality of pairs of upper and lower drawing rollers, of which the lower drawing roller, located on a roving in-feed side of the drawing frame, is provided with a clamping segment for interrupting the roving feed in a released position thereof in response to a broken-end detector, which monitors the presence of a spun thread, is improved by the provision of a suction device, associated with the drawing rollers on a thread formation side of the drawing frames, for collecting rovings present in a drawing frame when the roving feed thereto is interrupted. In accordance with a perferred embodiment, the suction device comprises suction tubes which are mounted for movement away from the drawing rollers and lockable in respective operating and nonoperating positions.

Abstract: A spinning frame having a frame mount, a plurality of spindles and, suction elements for each spindle, a ventilating fan arranged in the frame mount and connected to the suction elements, and a filter on the pressure side of the ventilating fan, the filter forming at least part of the rear wall of the frame mount, and including pneumatic cleaning means for the filter, said cleaning means including a suction arm which is movable along the filter and is connected to a suction device.

Abstract: For automatic feeding of slivers through drawing rollers there is provided a sliver-processing frame having drawing rollers, tubes for conveying slivers to be drawn and a plurality of suction elements connected to a common source of low pressure wherein the drawing rollers are enclosed in a casing of which the interior is connected to the source of low pressure the casing having inlet orifices for admitting cleaning air to the surfaces of the drawing rollers, one end of each tube leading into the casing.

Abstract: The spindles of a flyer spinning frame are each mounted in respective chambers which are defined by telescopically slidable rings. The lowest ring on each sleeve is sealingly fixed on a spindle rail, while the uppermost ring on each sleeve is attached to a common, vertically movable support. The chambers, which are open at the top, are connected to the suction side of a ventilating fan by ducts, which extend through the spindle rail, and by flexible lines.

Abstract: A pneumatic cleaning apparatus arranged at the infeed table of a spinning machine, especially a drafting arrangement, wherein the infeed table possesses a number of sliver infeed locations. Each infeed location has operatively associated therewith a pair of rolls, forming a nip, for conveying in each case a sliver from a sliver supply, for instance a can. Each infeed location further has operatively associated therewith sliver guide elements arranged neighboring the related pair of rolls. At least the sliver guide elements are operatively associated with an air conducting means operatively connected with a negative pressure source.

Abstract: Apparatus is disclosed for capturing lint, dust, fly and the like particulate matter released by the passage of sliver to the trumpet of an orbital sliver coiler utilizing an annular plenum arranged to surround the circumferential path of travel of the trumpet of the coiler. The plenum is formed with a stationary outer plenum section having an outlet connected to a suction hose, and a rotating inner plenum section formed with an inlet opening arranged adjacent and moving with the trumpet of the coiler. Air and particulate matter released by the sliver is drawn through the inlet opening into the plenum.

Abstract: A yarn rupture-suction installation or broken end-collecting installation for the drafting systems or drafting gears of spinning machines, comprising a respective suction head for each drafting system connected with an air pressure sink and having a substantially slot-shaped suction opening associated with a delivery or feed roller of each drafting system. The suction opening extends from one end situated close to the spinning triangle to an end situated closer to an air pressure sink in the direction of flow of the air.The method of operating such installation and for preventing clogging of the suction head thereof contemplates imparting to a ruptured yarn piece or broken end leading to the rupture location a different position than the path of travel of the fiber material which is further delivered to the drafting system.

Abstract: A cleaning device is disclosed for the scraper blades of a clearing roller in a spinning machine such as a card, the improvement consisting in that there is a cleaning element for each of such blades, the cleaning element resting on such blade, control means being also provided for impressing a reciprocation to said cleaning elements in sliding contact with the blades, suction means being provided in front of the roller and blade ends.