Abstract: A device for guiding and compressing a sliver running through the device in a travel direction includes first and second guide elements adjoining one another in the travel direction. Each guide element has two opposite first sides and two opposite second sides. Each guide element is formed of two face-to-face disposed wall elements which are spaced from one another perpendicularly to the travel direction and which form the first sides of the guide element. The second sides of each guide element are open in a direction perpendicular to the travel direction. The first and second guide elements are offset at an angle with respect to one another as related to the travel direction.

Abstract: A regulated drawing unit for drawing fiber material includes an inlet through which the fiber material passes before being drafted; an outlet through which the fiber material passes after being drafted; a first arrangement defining a drawing field including drawing roll pairs spaced from one another in a direction of advance of fiber material; a drive system operatively connected to at least one of the drawing roll pairs for setting an extent of draft of the drawing field; a programmable control system having a memory and being connected to the drive system; a sensor for determining the mass of the fiber material running through a location and for applying signals to the memory; and a second arrangement for deriving information from data stored in the memory for adjusting the roll pair. The second arrangement includes a third arrangement for forming, from the information, a spectrogram of the fiber material and for evaluating properties of the spectrogram to use such properties in adjusting the roll pair.

Abstract: A fiber processing machine includes a fiber processing roll carrying a roll clothing on a circumferential surface thereof; an operationally substantially stationary carding segment carrying a segment clothing for cooperating with the roll clothing along a circumferential length portion thereof; a strip-supporting component fixedly held on a machine frame and having a supporting surface; and a segment-supporting strip extending circumferentially along the roll and being held on the supporting surface of the strip-supporting component. The segment-supporting strip has an upper surface supporting the carding segment at opposite end portions thereof and a lower surface opposite the upper surface. A radial distance between the clothing points of the segment clothing and the clothing points of the roll clothing is determined and is changeable by the shape and/or the position of the segment-supporting strip.

Abstract: A roll for advancing fiber material has a roll surface provided with a sawtooth clothing which includes a plurality of teeth separated from one another by respective tooth gaps each having a gap bottom. Each tooth has a frontal flank oriented in a direction of roll rotation and a tooth point. Each tooth having a tooth height h.sub.2 measured from the roll surface to the tooth point and a tooth gap height h.sub.3 measured from the tooth gap bottom to the tooth point. The tooth height h.sub.2 and the tooth gap height h.sub.3 are small for defining a small fill volume between teeth. Each tooth has a back angle .gamma. having a magnitude of at least approximately 90.degree. and further has a large tooth division t and a large pitch P for defining a large open space about the teeth.

Abstract: A system includes a first drawing frame having a sliver output; a second drawing frame having a sliver input; and a conveyor apparatus for supplying, in a closed circuit, sliver-filled coiler cans from the output of the first drawing frame to the input of the second drawing frame and for supplying empty coiler cans from the input of the second drawing frame to the output of the first drawing frame. The conveyor apparatus includes first and second storage devices for supporting thereon a plurality of sliver-filled coiler cans and empty coiler cans, respectively. The storage devices are formed of respective conveyor tracks, each having a conveying device.

Abstract: A fiber processing machine includes a fiber processing component and a material-removing roll supported to be in contact with the fiber processing component for removing material therefrom. The material-removing roll includes a radially deformable resilient circumferential surface and a material-removing substance carried at least indirectly by the resilient surface.

Abstract: A fiber processing machine includes a sliver guiding device having first and second wall elements as well as first, second, third and fourth wall faces. The first and second wall faces which form part of the first and second wall elements, respectively, are oriented toward and spaced from one another to define a first gap. The third and fourth wall faces are oriented toward and spaced from one another to define a second gap. Some of the wall faces are convergent for densifying a sliver running through the first and second gaps. At least one of the first and second wall elements is stationary during operation. First and second cooperating withdrawing rolls immediately adjoin the first gap for pulling the sliver therethrough upon their rotation. The first and second withdrawing rolls define a bight into which the first and second wall faces extend. The first and second withdrawing rolls have respective first and second circumferential roll surface portions forming the bight.

Abstract: A method of measuring fiber material while being processed by fiber processing components of a carding machine, includes the following steps: measuring fiber length and nep number at an outlet of the carding machine; applying measured values of the fiber length and nep number to a control and regulating device; forming, in the control and regulating device, optimized machine setting data for the fiber length and the nep number; and applying the optimized machine setting data to at least one of the fiber processing components affecting fiber length and nep number.

Abstract: An apparatus for making a fiber batt includes an opening roll for opening fibers fed thereto; a fiber removing device directing an air stream to the opening roll for removing the opened fiber therefrom; a downwardly open fiber gathering hood; an arrangement for introducing into the hood an air stream carrying the opened fiber removed from the opening roll; an air-pervious, continuously moving fiber gathering surface covered by the fiber gathering hood; an arrangement for forcing air from the fiber gathering hood through the fiber gathering surface for depositing the fibers thereon to form a fiber batt; and an arrangement for heating the fibers with a heated air stream in a zone between the opening roll and the fiber gathering surface for effecting a heat treatment of the fibers, such as a binding of the fibers with a binding agent mixed to the fibers.

Abstract: A method of measuring fiber while being processed by a fiber processing machine, includes the following steps: measuring the length of fiber at an inlet of the fiber processing machine; measuring the length of fiber at an outlet of the fiber processing machine; and forming a difference between the values measured at the inlet and the values measured at the outlet for determining an extent of shortening to which the fiber is subjected as the fiber passes through the fiber processing machine.

Abstract: A carding machine includes a main carding cylinder having a cylinder axis and a cylinder clothing; and traveling flats cooperating with the main carding cylinder along a circumferential length portion thereof. The traveling flats include a plurality of flat bars each having a flat bar clothing cooperating with the cylinder clothing; and a drive for moving the flat bars in unison in an endless path having a working leg in which the flat bar clothings cooperate with the cylinder clothing and a return leg. The working leg extends circumferentially about a portion of the main carding cylinder. The carding machine further has a flexible bend having a convex surface and being supported on the machine frame laterally of the main carding cylinder; and a slide guide supported on the flexible bend. The slide guide has a convex surface supporting the flat bars for sliding motion thereon along the working leg.

Abstract: A carding machine includes a main carding cylinder and an apparatus for introducing fiber material to the main carding cylinder. The apparatus includes a fiber feeding device and at least one licker-in having a sawtooth clothing and being disposed between the fiber feeding device and the main carding cylinder. The apparatus further has at least one pin roll having a pin clothing and being flanked by the fiber feeding device and the licker-in .

Abstract: An apparatus includes a carding machine which has a web trumpet gathering a running fiber web into sliver and a calender roll pair arranged immediately downstream of the web trumpet for pulling the sliver therethrough. The apparatus further includes a sliver coiler having a rotary coiler head through which the sliver passes and a first sliver trumpet having an inlet which constitutes the inlet opening for the coiler head. A sliver drawing unit is arranged at the inlet opening for the coiler head for drawing the sliver running therethrough prior to entering the coiler head. Further, a second sliver trumpet is arranged at the inlet end of the drawing unit for guiding the sliver thereto.

Abstract: A combination of a sliver intake assembly for guiding and introducing simultaneously a plurality of slivers into a drawing frame and a suction assembly for removing waste, such as dust or fiber fly. The combination includes an emplacement situated below the sliver intake assembly for accommodating a plurality of coiler cans from which slivers are withdrawn by the sliver intake assembly. The suction assembly has a suction duct which extends along the sliver intake assembly in a region thereof for drawing waste thereinto by vacuum.

Abstract: An apparatus for measuring the thickness of running sliver includes a body having inner walls defining a funnel-shaped cavity through which the sliver passes; a contact finger having an end portion for contacting the running sliver at the narrow end of the cavity; a support arrangement for movably securing the contact finger to the body; a device for urging the end portion of the contact finger into resilient contact with the running sliver for pressing the running sliver against a stationary component at the narrow end of the contact finger, whereby the contact finger performs excursions in response to thickness variations of the running sliver; and a transducer connected with the contact finger to transform displacements thereof into electrical signals. There is further provided an air stream generating arrangement for driving an air stream through the space which accommodates the contact finger, whereby the contact finger is exposed to the air stream.

Abstract: An apparatus for detecting foreign substances in a fiber tuft stream and for separating the foreign substances therefrom, includes a conduit guiding the fiber tuft stream therethrough in a conveying direction; a metal detector situated at a first location of the conduit for detecting a metal substance in flight and for emitting signals representing the metal substance; a first separating device situated at a second location of the conduit downstream of the first location as viewed in the conveying direction; a first control device connected to the metal detector and the first separating device for operating the first separating device in response to a signal emitted by the metal detector for removing the detected metal substance; an optical sensor situated at a third location of the conduit for detecting a non-metal substance in flight and for emitting signals representing the non-metal substance; a second separating device situated at a fourth location of the conduit; a second control device connected to the

Abstract: An apparatus for detecting a foreign substance in a fiber tuft stream and for separating the foreign substance therefrom. The apparatus includes a conduit guiding the fiber tuft stream therethrough in a conveying direction; an optical sensor system situated at a first location of the conduit for detecting a foreign substance in flight and for emitting signals representing the foreign substance; a separating device situated at a second location of the conduit downstream of the first location as viewed in the conveying direction; an evaluating device for processing the signals; a control device connected to the optical sensor system, the separating device and the evaluating device for operating the separating device; and an opening device situated in the conduit upstream of the optical sensor system as viewed in the conveying direction for opening the fiber tufts prior to passage thereof past the optical sensor system.

Abstract: An apparatus for treating fiber and producing a fiber lap therefrom, includes a fiber feeder; a carding machine including a multi-roll licker-in assembly receiving the fiber material from the feeder, a main carding cylinder receiving fiber material from the licker-in assembly, a plurality of carding flats supported about a circumferential portion of the main carding cylinder and cooperating therewith, and a doffer receiving fiber material from the main carding cylinder; and a fiber lap forming device including a pneumatic fiber stripping device which has a blower for directing an airstream generally tangentially to the doffer for removing and entraining fiber material from the doffer, a hood having an inner face defining a chamber situated above and downstream of said doffer for receiving fiber material carried from the doffer by the airstream, a continuously driven, air-pervious receiving member having an upper face and an underside, and a suction device facing the underside of the receiving member for gener

Abstract: A fiber processing apparatus includes a plurality of serially-arranged fiber processing components for forming and advancing a fiber web and for gathering the web into a sliver. Some of the components are spaced by a clearance from one another such that the fiber web, while passing from one of the components to an adjoining, spaced component has a length portion unsupported by either of the adjoining components. There are further provided an imaging apparatus which has an illuminating device directing a light beam onto a surface area of the unsupported length portion of the running web; and a camera for sensing the light of the surface area lit by the illuminating device. An electronic image processing unit is connected to the camera for examining signals received therefrom.

Abstract: A coiler can transporting assembly for advancing coiler cans in a transporting direction to a sliver-producing textile machine. The assembly includes coiler cans each having a bottom forming a conveying face; and a conveyor element having a discharge end and an upper transporting surface engaging the conveying face of the coiler cans when in an upright, standing position on the conveyor element. The conveying face and the transporting surface have a low friction value relative to one another. A can-stopping device is situated at a location along the conveyor element and has first and second states. In the first state the can-stopping device blocks advancement of a coiler can while the conveyor element continues to move in the transporting direction. In the second state the can-stopping device allows advancement of a coiler can therethrough.