Abstract: The invention relates to combing element for a circular comb of a combing machine that is connectable to a base body of the circular comb via fastening means. The combing element has a plurality of adjacently situated clothing elements oriented transversely with respect to the longitudinal direction of the combing element and provided with a toothed clothing. The combing element has a mounting bar with a supporting surface on which the clothing elements rest. The ends of the clothing elements protrude beyond the lateral faces of the mounting bar adjoining the supporting surface, and the clothing elements are joined to the mounting bar by means of at least one weld seam applied between the base surfaces of the ends of the clothing elements that protrude beyond the supporting surface of the mounting bar and the mounting bar.

Abstract: An arrangement for a rotatable circular comb for processing fibers supplied in the form of a fiber band has arrangement sections fastened on a circular cylindrical mantle surface that is rotatable about an axis of rotation in a direction of rotation. The arrangement sections are arranged behind one another in a circumferential direction of the circular cylindrical mantle surface such that the arrangement sections successively engage the fiber band in an engagement sequence when the arrangement is rotated in the direction of rotation. A first one of the arrangement sections that engages the fiber band first in the engagement sequence upon rotation of the arrangement is an engagement section and the arrangement sections arranged successively behind the engagement section are follower sections. The engagement section has a lesser combing effect than at least one of the follower sections. At least one of the follower sections has a greater length in the circumferential direction than the engagement section.

Abstract: A straight wool-combing machine (10) has, instead of the conventional pair of detaching rollers, a pair of jaws (30, 32) for gripping the combed end of a tuft and for separating it, by a withdrawal movement, from the rest of the fibre sliver (M). The pair of jaws (30, 32) has a suction fan (31) for transporting the combed fibres pneumatically to a collecting store.

Abstract: The circular comb segment is constructed to leave a large free space at the front edge to avoid deflecting a tuft delivered from a nipper unit away from the foremost needles or clothing points at the front edge. The comb segment may be provided with recesses at the sides of the front edge to receive screws for fixing the segment to a comb roller or may be provided with projecting lugs for securement to a comb roller. In one embodiment, the lugs may be replaced by clamping plates which engage against a reduced lip at the front edge of the segment or engaged within a recess or groove at the front edge. In still another embodiment, the comb segment may be provided with an inwardly offset projection to be received in a recess of the roller and secured therein.

Abstract: The comber has at least one combing head comprising an oscillating nipper unit with an intermittently rotatable feed roller for advancing the lap feed to be combed in the combing head. An electric motor is provided to rotate the fed roller and is energized with drive pulses by a control unit. The magnitudes and phases of the drive pulses are adjustable in the control unit relative to the movements of the nipper unit. Consequently, the angle through which the feed roller rotates during a single reciprocation of the nipper unit and the instant of time of such rotation can be readily adjusted steplessly even with the comber runner. Also, a closed-loop control is possible if the angle through which the feed roller rotates is so adjusted in the control unit by a controller that the yarn count, as determined continuously by a sensor of the combed sliver deliver by the combing head always remains substantially constant.

Abstract: An improved combing cylinder utilized for a combing machine provided with a fringe control member having a chevron shaped cross section and a forwardly inclined surface sloped toward the cylindrical boss of the combing cylinder, with respect to the direction of rotation of the combing cylinder. The fringe control member is rigidly mounted on the combing cylinder at a position downstream of the needle segment of the combing cylinder, in a condition satisfying the timing whereby the tip line surface of the fringe control member closely faces the bottom detaching roller when the detaching rollers start to change their direction of rotation from a reverse rotation to a normal rotation. The radius of the forward end of the fringe control member is made smaller than the radius of a peripheral surface of the tip end of the combing needles of the needle segment, so that a recessed portion is formed adjacent to and behind the last alignment of combing needles of the needle segment.

Abstract: The drive mechanism for the feed roll of a combing machine employs a freewheel having an inner member secured to the feed roll and a concentric outer member secured to the pivotal arm which mounts the top nipper. In addition, locking elements are disposed between the inner and outer members and the outer member provided with a sawtooth configuration so that the locking elements may lock during rotation of the outer member under the influence of the arm and may move into a released position during an opposite rotation of the outer member. The lost motion or idle travel in the changeover between the released position and the locking position is quite reduced. Thus, feeds are always of substantially exactly the same magnitude with a resulting improvement in the produced sliver.

Abstract: In a combing machine, in particular for combing of cotton, having a combing roller with at least one combing segment, conveying devices for the fiber tuft to be combed, and an upper and lower nipper for fixing the fiber tuft during the engagement of the combing segment, where the upper and/or lower nippers are seated pivotable in a forward and backward direction on an axis located above the comb cylinder, it has been provided, in order to attain a high operating speed while reducing the transfer paths and the mass to be moved, to derive the drive for the pivot movement of the upper and/or lower nippers directly from the drive for the combing roller by means of a cam drive.

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 circular comb arrangement in which a segment-shaped member has individual needle strips located parallel to each other and connected by pressure strips fastened to the segment-shaped member under pressure. The latter has a cutout holding all needle strips and pressure strips. The pressure strips are in the form of a flexible lamination having a free end fastened inside the cutout of the segment-shaped member. A pressure member is connected to the lamination, and one pressure surface of the pressure member is in contact with the subsequent needle strip as supporting surface. Behind the last needle strip, there is located a clamping strip which is detachably connected to the segment-shaped member. The clamping strip presses all needle strips and pressure members against one another and against a support surface ahead of the first needle strip.

Abstract: A pin roll includes a roll body having wedge grooves therein disposed parallel to the axis of the roll body. Pinstrips are disposed in the wedge grooves, and clamping wedges are disposed in the wedge grooves to hold the pinstrips therein. At least two parallel pegs in the roll body are disposed generally transversely of the wedge grooves. The clamping wedges have means defining oblique slots extending from the bottom thereof with the pegs being disposed in the oblique grooves. Operable means operable in a longitudinal direction and engageable with the wedge means are operable to effect securing and releasing of the pinstrips.