Abstract: Circular comb for a combing machine for combing textile fibers, comprising a base body with a center longitudinal axis, a peripheral surface and two end faces, a plurality of bar tacks, which are arranged on the peripheral surface of the base body and define a combing region of the circular comb, a plurality of fastening devices attached to the base body for the non-positive connection of one of the bar tacks in each case to the base body and unlocking units to release the non-positive connections, each unlocking unit having an unlocking device and an unlocking means to actuate the unlocking device, wherein the unlocking units are accessible from outside the combing region, in particular from at least one of the end faces, and an additional positive securing connection to secure the bar tacks is provided on the base body.

Abstract: Circular comb for a combing machine for combing textile fibres, comprising a base body with a centre longitudinal axis, a peripheral surface and two end faces, a plurality of bar tacks, which are arranged on the peripheral surface of the base body and define a combing region of the circular comb, a plurality of fastening devices attached to the base body for the non-positive connection of one of the bar tacks in each case to the base body and unlocking units to release the non-positive connections, each unlocking unit having an unlocking device and an unlocking means to actuate the unlocking device, wherein the unlocking units are accessible from outside the combing region, in particular from at least one of the end faces, and an additional positive securing connection to secure the bar tacks is provided on the base body.

Abstract: With a set, in particular for fixed combs or round combs on textile combing machines, comprising a plurality of needles which are arranged adjacent to each other, whereby each needle comprises a foot section and a tip section, and whereby between the tip sections of adjacent needles, a free opening area is formed, in which the fibres to be combed can penetrate during combing, it is provided that the needles are produced by punching, that at least the front end of the tip section is angular or previously bent, and that the needle density is >=33 needles per cm.

Abstract: In porcupine clothing for textile machines, in particular combing machines, comprising a plurality of combing segments disposed one after the other in the direction of rotation of the porcupine, each combing segment being formed by successive serrated punched cut-outs with a root and with teeth that face away from the root, with the configuration of the teeth of the clothing changing in the direction of rotation, it is provided that the clothing (1), in its entirety, is embodied such that the parameters which include the distance (T) between the teeth (13) and/or the angle of engagement (E) and/or the free passage (D) between the teeth (13) and/or the height (H) of the teeth (13) change at varying angular positions seen in the circumferential direction of the clothing (1).

Abstract: In a top comb for a combing machine, having at least one row of stamped needles that are arranged in a parallel side-by-side relation and enclosed between two cover plates with a free needle projection (8) being left free, wherein compressed air channels are formed between the cover plates and adjacent pairs of needles are provided, in order to increase the efficiency of the cleaning effect, that the needles (1,1′,1″) incorporate embossings such that the congruent embossings of adjacent needles form an air channel (9,9′,9″), wherein the embossings taper in their widths towards the outlet area (outlet opening 11,11′,11″).

Abstract: In card clothing for a textile machine comprising a plurality of adjacent spaced-apart needles or serrated punched cut-outs disposed in rows, wherein the needles or serrated punched cut-outs are stamped and accordingly have a non-rectangular cross-sectional geometry, wherein a free passage zone for the fibers being combed is formed between the spaced-apart needles or serrated punched cut-outs, it is provided that the free passage zone (A) steadily widens viewed in the direction of travel of the sliver.

Abstract: The invention relates to a top comb for a textile treating or processing machine, especially a combing machine. Said top comb comprises a plurality of needles that are arranged in at least one row in a side-by-side parallel relation. Said needles, at least in some sections, have a pitch unequal 90° relative to the theoretical plane of movement of the fiber strip to be combed. A nipper unit is mounted before the top comb in the direction f movement and a pair of take-down rollers after the top comb. The aim of the invention is to improve the combing capacity of such a top comb. To this end, the needles of the top comb have a pitch (&agr;) 92°, especially 95° in the area of the free needle point.

Abstract: The invention is directed to saw tooth fittings for preparatory textile machines including combing machines for wool or cotton wool and carding machines. The saw tooth fittings can be strips or saw tooth elements having a tooth or a plurality teeth including a first tip at a free end of either the tooth or each of the plurality of teeth. The tooth or each of the plurality of teeth have a forwarding combing edge which is concavely curved at least from a foot portion to a second tip of either the tooth or each of the plurality of teeth. The second tip is located between the first tip and the foot portion. The second tip extends forwardly from the combing front edge in the direction of combing thereby improving the combing effect.

Abstract: In a needle for a needle bar or rod, the needle comprising a fastening area at its foot and above this an actively combing tip area, the needle being a stamped element and the fastening area having a recess closed or open outwards for the needle to be slipped on a support rod, the recess being non-circular or having projections or indents corresponding to the cross-section of the support rod such that the needle is disposed non-rotatably on the support rod, it is provided, with a view to convenience of replacement and simplicity of design of a needle bar, that for textile combing machines, in particular drawing equipments, for intersecting machines, feed combs, top combs, round combs or the like, the tip area is distinctly higher than the fastening area and is made approximately oval in cross-sectional shape by stamping.

Abstract: In a feed comb arrangement for a combing machine comprising an intermittently driven pair of feed rollers preceding the feed comb arrangement in the transport direction of the fiber web to be combed and a take-down arrangement, in particular in the form of take-down rollers, following the feed comb arrangement, it is provided for the purpose of increasing smoothness of running, of avoiding accumulations of impurities and of attaining an effective transport that the feed comb arrangement is formed by a plurality of fallers, which are intermittently driven in synchronization with the combing operation and which are covered with needles or saw-toothed stamped elements, respectively, which fallers extend on their two outer ends into closed guideways in such a manner, that during part of the route of rotation the needles or saw-toothed points, respectively, engage with the fiber web and on the other hand the needles or saw-toothed points, respectively, upwardly leave the fiber web after having traveled a transport

Abstract: In a method for cleaning the needle bar, in particular a top comb for textile machinery, comprising at least one row of needles or needle-like stamped elements, which are held between two cover plates, whereby the needle tips protrude, while forming free passageways, by a certain amount between those free passageways beyond the lower edge of the cover plates, and whereby compressed air is guided through the free passageways, it is provided, in order to attain an optimum guidance of the fiber band and a complete combing, that depending on the working cycle of the machine, into which the needle bar is inserted, the free passageways between the needles, respectively the region before the needles are alternately activated with overpressure or underpressure.

Abstract: In a needle bar carrier with a needle bar comprising a plurality of needles anchored in a plastic bar, the needle bar being attachable to the needle bar carrier by form locking and for the purpose of achieving a very stable connection between the needle bar and the needle bar carrier along with a simple and defined release it is provided that the plastic bar is arrested in holes of the needle bar carrier by the plastic material of the plastic bar being thermally or chemically joined by solving or melting while forming a projection extending into or beyond the hole.

Abstract: For achieving the cleaning of the space between the combing elements and thus for attaining a considerably improved combing effect in a combing element, in particular a needle or a stamped sawtooth element, for spinning machines, the combing element is provided with at least one compressed air channel in the shape of a groove (4) in the combing element itself, leading from a fastening area in the direction of the tip area (3).

Abstract: Air channels (11) are provided in a needle strip for the removal of contaminants that are deposited in the open passageways (F) between the needle points (4), which air channels can be connected to a compressed air source or a vacuum source via an air chamber (15). With die-cut and swaged needles (1), the air channels (11) are preferably formed by an extension of the swaging (10) into the region between the cover plates (2,3). Pursuant to the cleaning process, compressed air, preferably pulsed, is directed at the point region for cleaning purposes.

Abstract: A drawhead for drawing equipment having a plurality of fallers or the like disposed parallel to each other along a closed guideway at a predetermined distance from one another. In such a drawhead it is expected to achieve the transfer of large forces parallel to the guideway in a simple manner, while avoiding all sliding friction. This is achieved by equipping each faller with at least two pivot bearing elements of differing diameters placed axially next to each other in such a way that the pivot bearing elements of adjacent fallers are disposed in such a way that two adjacent pivot bearing elements with smaller diameters adjoin each pivot bearing element with a larger diameter and that two pivot bearing elements having larger diameters adjoin each pivot bearing element with a smaller diameter.

Abstract: The invention relates to an opening cylinder for open-end spinning machines or the like comprising a cylindrical basic body (1) with helically extending grooves (2) for the accommodation for fittings. To achieve high combing quality with easy replaceability of the fittings and low cost weight-saving design of the basic body, it is provided according to the invention that the grooves (2) for the accommodation of the root (9) of a needle-bar (8) exhibit an undercut and run at an acute angle (.alpha.) to the longitudinal axis (3) of the cylindrical basic body (1).

Abstract: Saw toothed metal parts as outfits for comb segment of a porcupine for textile machines such as combing machines in which each metal part has a stilt functioning as the holding component in the comb segment and a plurality of teeth extending outwardly from the stilt, the said teeth being inclined in pointed angle to the radial direction of the comb segment in the direction of rotation of the comb segment, the height of the centers of the teeth increasing in the direction of rotation. The angle of action that is the angle between the front face of a tooth and the radius passing through the tip of the tooth, as well as the distance between the centers of the teeth increase in the direction of rotation of the comb segment.

Abstract: A stretch head for a stretching mechanism includes a plurality of needle rods which move along a generally planar working path and a return path. Linear motor means are operable to move the needle rods along the planar working path along material to be warped and along the return path, and screw means move the needle rods between the two paths.

Abstract: Toothed edging apparatus for mounting on a rotatable support of a textile machine includes tooth segments each having a plurality of teeth elements arranged generally along an arc and a foot portion from which the teeth elements extend, the foot portion being mounted on the rotatable support of the textile machine. At least one recess is provided in the segments, and a holding element passes through the recesses and is secured to the support for holding a plurality of such segments on the rotatable support, the holding element having a longitudinal axis disposed generally parallel to the axis of the rotatable support.

Abstract: A releasably interlockable needlestrip and needle-carrier for textile machines includes a generally U-shaped elongated needle carrier having legs defining a longitudinally extending recess therebetween. A plurality of protuberances are provided on one of the legs projecting into the recess. A bracket member is positionable in abutting relationship with a needlestrip and one of the legs thereof is positionable in abutting relationship with the top face of the needlestrip, the needlestrip and bracket member when positioned in such abutting relationship being dimensioned and configured to fit within the recess of the needle carrier.