Abstract: A dunnage conversion machine (36) converts a sheet stock material into a dunnage product that is relatively thicker and less dense than the stock material, but is relatively thin and sufficiently flexible to function as a protective wrap. The conversion machine includes a feed mechanism (40) that advances a sheet stock material therethrough and a connecting mechanism (42) downstream of the feed mechanism. The connecting mechanism retards the passage of the sheet stock material therethrough by feeding the stock material therethrough at a slower rate than the feed mechanism feeds the stock material to the connecting mechanism. This causes the stock material to randomly crumple in a longitudinal space between the feed mechanism and the connecting mechanism. The connecting mechanism connects multiple overlapping layers of sheet stock material together as they pass therethrough, including connecting at least one crumpled sheet to one side of one other sheet.

Abstract: A textile stuffer box comprises a housing assembly having a yarn entrance and a yarn exit, and cooperating interior chamber-forming surfaces. The chamber-forming surfaces defines a multi-stage internal crimping chamber for receiving and accumulating a moving length of ply-twisted yarn between the entrance and exit of the housing assembly. The crimping chamber comprising an upstream fixed-volume stage and a downstream adjustable-volume stage. A weight-balanced gate selectively adjusts a volume of the downstream adjustable-volume stage of the crimping chamber, thereby controlling axial compression of yarn accumulating inside the upstream fixed-volume stage of the crimping chamber.

Abstract: A device for shaping at least one thread-like material (1), which is formed in a forming unit and is deposited on a transporting device (6) for the subsequent thermosetting process, wherein a retaining means (4, 14, 15, 22) and a drivable, curved depositing tube (5) are arranged one after the other in the thread transporting direction.

Abstract: A method and a device for crimping a multifilament thread are described. The thread is blown by means of a transport nozzle through a compressed air stream guided in a thread channel into a gas-permeable compression chamber. Inside the compression chamber, the thread is compressed to form a thread plug, which is then continuously removed through an outlet of the compression chamber. The compression and the removal of the thread plug are monitored by measuring the pressure of the compressed air stream. According to the invention, a plurality of pressures of the compressed air stream in the compression chamber are measured at a plurality of measurement points distributed over the length of the compression chamber for monitoring the thread plug formation in order to perform the compressing and cooling of the thread plug with a uniform filling of the compression chamber.

Abstract: The invention relates to methods for simultaneously producing crimped fiber strips in parallel, in particular filter tow strips, in a crimping machine (KM) having an inlet region (3), a squeezing zone (6) formed between two transport rollers (4, 5), and a compression channel (7), comprising the following steps: a) simultaneously feeding in parallel a plurality of fiber strips (1, 2) via the inlet region (3), wherein the fiber strips are guided separately in the inlet region (3), using a first separating device (31), b) simultaneously transporting and compacting in parallel the fiber strips in the squeezing zone (6) by way of the two transport rollers (4, 5), and c) simultaneously crimping in parallel the fiber strips in the compression channel (7), wherein the fiber strips are guided separately in method step b) by using a second separating device (61) and in method step c) by using a third separating device (71), and wherein the first, second and third separating devices (31, 61, 71) are designed such that t

Abstract: A cheek plate device is provided for a stuffer box crimper, which has brackets, adjusting mechanisms, cheek plates, a base frame and a pair of nip rollers. The adjusting mechanisms are mounted on the brackets, which can slide relative to the bracket. The cheek plates are mounted on the inside of the adjusting mechanisms. Two identical brackets, adjusting mechanisms and cheek plates are mounted symmetrically at two sides of the pair of nip rollers and affixed on the base frame. The cheek plate device further comprises fluid thrust devices, which include fluid inlets and cylinders located on the brackets. One end of the adjusting mechanism is inserted into and coupled with the cylinder. The fluid of the thrust device flows into the cylinders through the inlets and pushes, via the adjusting mechanisms, the cheek plates toward the sides of the nip rollers. The thrust device can work hydraulically or pneumatically.

Abstract: A cheek plate device for a stuffer box crimper, comprising a bracket, adjusting mechanisms, cheek plates, a base, a pair of nip rollers and thrust devices. The adjusting mechanisms, which can slide relative to the bracket, are arranged on the bracket, the cheek plates are installed on the inner sides of the adjusting mechanisms, a pair of identical brackets, adjusting mechanisms and cheek plates are symmetrically installed on each side of the pair of nip rollers and affixed on the base. The adjusting mechanisms have adjusting blocks and elastic devices, the elastic devices are installed at the ends of the adjusting blocks and push against the thrust devices, the thrust devices push the adjusting blocks via the elastic devices, and the adjusting blocks push the two cheek plates moving towards the sides of the pair of nip rollers.

Abstract: Thread-crimping machines with enhanced throughput are detailed. One or more drive rolls forming parts of the machines may be grooved to group centrally the entering threads without materially adversely impacting driving and crimping operations of the machines. Thread-focusing components also may be employed upstream of the inlet areas.

Abstract: A texturizing apparatus comprising a drive housing having a false twist inlet to allow a plurality of yarns to enter the drive housing, a pair of opposing counter-rotating nip rollers positioned downstream of the false twist inlet, each nip roller having a circumferential drive surface adapted to engage the plurality of yarns and at least one circumferential spacer surface, and means for applying compression to one of the nip rollers to force the at least one circumferential spacer surfaces of the pair of nip rollers toward each other. The drive housing further having a drive outlet positioned downstream of the pair of counter-rotating nip rollers through which the plurality of yarns may exit the drive housing. The texturizing apparatus can also include a stuffer box having at least one movable flapper door and a box inlet positioned proximate the box inlet and of a size to allow the plurality of yarns to enter the interior of the suffer box.

Abstract: In a method and apparatus for securing engagement between fastening components of a pre-fastened garment the fastening components are aligned in at least partially overlapping relationship with each other and engaged with each other to define an engagement seam. The fastening components are then flexed at the engagement seam to generate a shear stress at the seam to thereby promote increased engagement between the fastening components. In another embodiment, the fastening components are delivered in a predetermined direction to a nip and then drawn into the nip at a speed greater than the speed at which the fastening components are delivered to the nip. The fastening components are passed through the nip generally to squeeze the fastening components together at the engagement seam for promoting enhanced engagement between the fastening components.

Abstract: The crimper has a pair of feed rollers to supply fiber traveling therebetween. The feed rollers rotate at a first speed. A pair of outlet rollers receive fiber from the feed rollers and rotate at a second speed slower than the first speed. A pair of side walls sandwich the feed rollers and the outlet rollers. A pair of floating scrapers are supported by move with the feed rollers, the outlet rollers and the side walls. Fluid is supplied to and ejected from the scrapers such that a fluid bearing is created at least between the scrapers and the feed rollers. There are two pairs of outlet rollers with a belt rotating about each pair of outlet rollers. For each pair, a first of the outlet rollers is adjacent to the scraper and a second of the outlet rollers is displaced from the scraper. A space between the scrapers defines a crimping chamber. The first outlet rollers are moved toward and away from one another, thereby causing the crimping chamber to open and close.

Abstract: A method is disclosed for producing polyester fibers having uniform primary and secondary crimps. The method includes the steps of advancing fibers into a stuffer box having an upper doctor blade and a lower doctor blade, positioning the upper doctor blade and the lower doctor blade such that the doctor blade gap is broad enough to permit the formation of secondary crimps and yet is narrow enough to maintain primary and secondary crimp uniformity, and then applying a longitudinal force against the advancing fibers to impart uniform primary and secondary crimps.

Abstract: A device for crimping synthetic thread bundles or strips has a machine frame, two rollers supported in a machine frame and forming between their jacket a narrow roller gap for delivering a thread bundle or strip, with the first roller provided on its face ends with edge disks which embrace the second roller with slight play and form there, between an annular channel, the edge disks having inside faces forming two opposed boundary faces, a compression chamber having a rectangular cross-section, enclosed by boundary faces, and located in the annular channel between the edge disks, an outer adapter contacting the second roller in scrapper like fashion, engaging the annular channel and having a wall face oriented toward the first roller and forming a third boundary face of the compression chamber, and drive mechanisms provided for the two rollers and having motors which are designed for a circumferential speed of the rollers of up to at least 1,000 m/min.

Abstract: A device for crimping synthetic bundles or slivers of yarns, the device has a stuffing box provided with an inlet for a yarn bundle or sliver and including a movable press plate and a stationary counter plate opposite to the press plate, two axially parallel rollers disposed at the inlet for the yarn bundle or sliver and forming a gap through which the yarn bundle or sliver enters the stuffing box, a pivot arm pivotally mounted on a stationary pivot bearing, one of the two axially parallel rollers being rotatably mounted at a fixed position in a machine frame, another of the two axially parallel rollers being seated on the pivot arm so as to be rotatable about a rotation axis thereof and the press plate being pivotally connected to the pivot arm by means of a rocker so as to be pivotable about the rotation axis of the roller seated on the pivot arm or another rotation axis parallel with the rotation axis of the roller seated on the pivot arm, whereby the gap between the rollers is varied, a contact pressure d

Abstract: A device for crimping synthetic thread bundles or bands has a stuffing chamber, a pair of rollers supplying a thread bundle or band into the stuffing chambers, a pressing disk covering a roller gap at end sides of the rollers, a clamping element including and axially reciprocating piston which presses the pressing disks against the end surfaces of the rollers, a rotary drive having a drive unit for producing a reciprocating movement and an apparatus for converting the reciprocating movement in a stepped rotation of the pressing disks, the clamping element being fixedly connected with the rotary drive to form a structural group, the structural group having a single rotatably supported and axially displaceable driven element which axially engages the pressing disk and is fixedly connected with it for joint rotation, the piston of the clamping element being clampable inside the structural group axially against the driven element, the rotary drive having a swivel motor with a swiveling shaft which is reciprocatin

Abstract: A stuffer box crimping unit provided with a crimping chamber and two feed rolls associated with the chamber and located upstream thereof, has pressure disks associated on both sides in side walls of the crimping chamber at the level of the nip between the two feed rolls. These two disks are not only made from a material provided for wear, but also from a separate carrier disk made of appropriate material. The carrier disk is a wear element shaped like a lid and made of the nonferrous metal intended for wear in the direction facing the pressure roll nip. This wear element is readily replaced and there is no need any longer for regrinding the wear surfaces of pressure disks so that the disks can be reused.

Abstract: A device for the crimping of synthetic yarns, bundles or bands, which includes a pair of pressure rollers and a subsequent stuffer box chamber having two plates, arranged parallel to the axes of the rollers, of which one is mounted at least partially movable for reducing the chamber area, and two lateral walls, closing off the chamber to a nip of the pressure rollers. At the level of the nip of the pressure rollers and in each case positioned adjacent to the edge area of the end surface of a rollers, a pressure disk is provided onto. An adjustment unit which is connected to at least one sensing device, which holds, through the adjustment unit, the pressure disk against the end surface of the roller under a pressure force. The sensing device is constructed as an instrument for determining the bending, adjusted on the basis of the pressure force, of a carrier for the pressure disk and the pressure force is adjustable in dependence on the continuously determined bending of the carrier.

Abstract: Crimping of cables of synthetic fiber is performed by an arrangement in which a cable is supplied by rotatable compression rolls with a high speed into a compression chamber, and a cooling air is supplied into the compression chamber, wherein water is added to the cooling air in form of fine droplets.

Abstract: A stuffer box crimper wherein the crimper roll surfaces comprise a hard wear resistant coating between opposite edge portions of the parent metal of the roll.

Abstract: Textile fibers are crimped by rotating opposed crimping rolls about spaced rotary axes to force-feed the fibers through a nip defined by the rolls and into a stuffer box. A pair of cheek plates are pressed against the ends of the rolls such that a front face of each cheek plate retains the fibers against lateral displacement from the nip, and such that the center of each cheek plate is offset relative to the nip in a direction toward one of the rotary axes. Lubricant is pumped through a passage extending centrally through each cheek plate and onto the front face thereof.

Abstract: In the crimping of textile fibers, opposed rolls are rotated to force-feed the fibers through a nip defined by the rolls and into a stuffer box. A pair of cheek plates are pressed against the ends of the opposed rolls such that a front surface of each cheek plate engages ends of both rolls adjacent the nip to retain the fibers against lateral displacement from the nip. Atomized lubricating liquid is sprayed toward an inlet of the nip and against portions of the ends of the rolls approaching the nip, and against backsides of the cheek plates.

Abstract: An apparatus for crimping cables formed of synthetic filaments during a continuous spinning-stretching process includes two pressing rolls which form a crimping chamber into which a cable to be crimped by the rolls is inserted. One of the rolls is displaced from an operative position to a readiness position at a full apparatus speed. Upon displacement of the pressing roll into the ready-to-operate position, a gap between the rolls becomes wider and the crimping chamber opens longitudinally so that a passage is formed, which allows the cable to be inserted into the chamber from the front side thereof by means of a suction injector.

Abstract: A stuffer box crimping device has a pair of feed pressure rolls and a stuffer box arranged downstream thereof. The stuffer box is laterally delimited by side panels extending up to a nip of the pressure rolls. Pressure plates are supported in the side panels at the level of the pressure roll nip, the pressure plates being in contact with end faces of the rolls with an adjustable pressure. In order to prevent the heating up of the pressure plates during rotation of the pressure rolls, the pressure plates are designed to be cooled during operation. For this purpose, a unit is provided for supplying a cooling liquid against the pressure plate; the liquid being continuously discharged again from the unit after contacting the pressure plate.

Abstract: Novel construction of a stuffer box crimper by means of multiple precision ground plates held together in side-by-side contacting relationship and dowel-aligned so that the crimper rolls and other movable components are readily and properly aligned.

Abstract: A cheekplate holder assembly for use in a stuffer box crimper for continuous filament tow, with the cheekplate and its holder assembly as a unit being safely and readily removable from and reinsertable into the stuffer box crimper and the cheekplate movable into operative position against the endfaces of the feedrolls of the stuffer box crimper without stopping the rotation of the feedrolls.

Abstract: A flexible backing member is provided to bear in supporting relation against one side of a moveable ribbon sideplate in a stuffer box crimper to provide a smooth, elastic curved surfaced path for the ribbon sideplate to move thereagainst in all positions of its adjustment, with one end of the flexible backing member being connected in cantilevered manner at a location in or beyond the exit end of the crimping chamber.

Abstract: A tow crimping apparatus that includes a pair of advancing rolls associated with a crimping chamber is provided with a movable roll to permit controlled loading of the nip between the rolls. The controlled loading is accomplished through a pressure chamber linked to the movable roll and having a restricter in the pressure supply line to the pressure chamber.