Traveling Flat Patents (Class 19/102)
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Patent number: 8640309Abstract: A device attaches a flexible clothing in the form of a clothing strip to a card flat bar of a revolving card flat. The card flat bar has a card flat foot with a clothing take-up surface and a web lying above the card flat foot. At least two clips are provided on the clothing strip. The device includes means to accommodate and hold the card flat bar and the clothing strip. The device furthermore includes press rams, which are guided in a moveable manner transversely to the longitudinal direction of the card flat bar and from both sides parallel to the clothing take-up surface of the card flat bar. By means of the movement of the press rams, an integral formation of the clips on the card flat foot is caused. The press rams have a drive with compression hoses.Type: GrantFiled: February 1, 2012Date of Patent: February 4, 2014Assignee: Maschinenfabrik Rieter AGInventors: Jürg Ott, Hans-Peter Schatzmann
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Patent number: 7735200Abstract: In an apparatus at a spinning preparation machine, especially a card, having a clothed roller, at least machine element located opposite the roller clothing and spaced radially therefrom, and having two fixed lateral holding devices on which work elements are mounted, first and second measuring elements, connected to a control device are provided for detecting variables linked to the dimensions of the roller. The first measuring element comprises a temperature probe for the temperature of the roller surface. The second measuring element comprises a rotational speed sensor for the roller speed. To allow an actual carding nip to be determined, permitting a comparison with a preset carding nip, a third measuring element for the temperature of the holding devices is provided and the control device determines the actual spacing for the roller and the side panels.Type: GrantFiled: June 28, 2006Date of Patent: June 15, 2010Assignee: Truetzschler GmbH & Co. KGInventors: Gerd Pferdmenges, Robert Többen, Thomas Schmitz, Armin Leder
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Patent number: 7627931Abstract: An apparatus on a carding machine for processing textile fibres, with a cylinder, has, in the preliminary carding zone, after carding zone and/or underneath carding zone, covering elements which lie opposite the cylinder clothing. A fixed carding element is associated with at least one cover element. The spacing of the cylinder clothing from the clothing of the fixed carding element is smaller than the spacing from the cover element. In order to reduce nep formation, to allow improved carding work and to give a better carding result, between at least one clothing strip of the fixed carding element and a cover element arranged upstream and/or downstream thereof, there is arranged an air guide element the spacing of which with respect to the cylinder clothing gradually decreases or increases.Type: GrantFiled: March 15, 2006Date of Patent: December 8, 2009Assignee: Trützschler GmbH & Co. KGInventors: Achim Breuer, Wilfried Weber
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Patent number: 7587792Abstract: In an apparatus at a flat card for cotton, synthetic fibres and the like, wherein at least one stationary carding element comprising a carrying element with at least one clothing element is associated with a clothed roller, for example a cylinder, the tips of the clothing elements and the tips of the clothing of the roller lie opposite one another with a spacing and the carrying element has a hollow space. In order for the carrying element to be dimensionally stable in operation even when exposed to heat, the cross-sectional shape of the carrying element does not include an enclosed hollow space, and the opening is arranged in a region remote from the tips of the clothing element.Type: GrantFiled: December 14, 2006Date of Patent: September 15, 2009Assignee: Truetzschler GmbH & Co. KGInventor: Thomas Schmitz
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Patent number: 7162776Abstract: An arrangement in a spinning preparation machine is provided. The arrangement has a clothed roll having clothing presenting free ends; flat bar slide elements; clothed flat bars having clothing presenting free ends and cooperating with the clothing of the clothed roll, the flat bars having slide guides which glide on the flat bar slide elements; and a measuring apparatus comprising at least one sensor arranged for detecting a distance between a reference surface and at least one of the free ends of the clothing of the clothed roll and the free ends of the clothing of the clothed flat bars.Type: GrantFiled: October 30, 2003Date of Patent: January 16, 2007Assignee: Trützschler GmbH & Co. KGInventor: Thomas Schmitz
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Patent number: 7082646Abstract: An apparatus for on card cleaning and grinding of revolving flats (4) in a carding machine is disclosed. The apparatus mounts an interchangeable rotary cleaning brush (14) or grinding wheel (16) on a wheel drive (11) so that the wheel can be spun around an axis lateral to the path of the revolving flats (4). During a carding operation the height of the cleaning brush (14) is accurately adjusted by a precision feeding mechanism so that the brush cleans down to the surface of the revolving flats of the revolving flats (4) and so cleans and polishes the wires (4b) and the fouling which commonly accumulates beneath the points (4c) of the wires. The brush (14) can readily be replaced by a grinding wheel with a peripheral grinding surface.Type: GrantFiled: July 23, 2004Date of Patent: August 1, 2006Assignee: The Indian Card Clothing Co., Ltd.Inventors: Mehul Kunjbihari Trivedi, Bankim Ishwarlal Mistry, Ashok Kumar Pal
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Patent number: 7076839Abstract: A card top bar for a carding machine, has a carrying member and a releasable clothing portion in which card top bar there are provided two card top heads, each of which slides on a slideway, the card top heads comprise at least one sliding region, which is in contact with the slideway, and at least one fixing region, which is in engagement with the rest of the card top bar and which at the same time holds the sliding region. In order to improve the card top bar, the card top heads are in engagement with the carrier for the clothing.Type: GrantFiled: June 3, 2003Date of Patent: July 18, 2006Assignee: Trützschler GmbH & Co. KGInventors: Michael Schürenkrämer, Armin Leder
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Patent number: 7073229Abstract: In an apparatus on a carding machine for textile fibres, for example, cotton, synthetic fibres and the like, comprising revolving card flat bars equipped with clothing, in which a space is present between the tips of the card flat clothings and the tips of the cylinder clothing and the card flat clothings form an adjustable angle with the cylinder clothing, the ends of the card-flat bars each slide with one part on a first curved slideway and with another part on a second curved slideway and the sliding-contact surfaces of the slideways—viewed circumferentially—are different distances from one another. To produce an apparatus that is structurally simple and easy to assemble, enables the carding intensity of the card flat bars to be individually adjusted and allows wear of the clothing of the card flat bars to be reduced, the sliding-contact surfaces are arranged so that the distances between the sliding-contact surfaces both increase and decrease.Type: GrantFiled: April 23, 2004Date of Patent: July 11, 2006Assignee: Trützschler GmbH & Co. KGInventors: Achim Breuer, Christoph Färber
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Patent number: 7062819Abstract: A cogged-belt drive device for drawing along mobile flats of flat cards, in which the cogged belts are equipped, in their development facing the flat guides, with scraping or cleaning elements that eliminate the accumulation of foreign bodies from the guides on which the resting elements of the card flats are drawn along.Type: GrantFiled: December 20, 2001Date of Patent: June 20, 2006Assignee: Marzoli S.p.A.Inventors: Silvano Patelli, Marco Facchinetti, Giovanni Battista Pasini
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Patent number: 7055221Abstract: A flat end head with a mounting section for the flat rod and at least one sliding surface for progressive movement on a sliding guide of a card is made of a polymer material. The polymer material may be fiber-reinforced. Further, the polymer material may include a solid lubricant. The sliding guide may also be made of a polymer material. An apparatus for replacing a flat end head on a flat rod is also provided.Type: GrantFiled: December 3, 2004Date of Patent: June 6, 2006Assignee: Maschinenfabrik Rieter AGInventor: Peter Gujer
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Patent number: 6748628Abstract: A drive belt assembly for a revolving flat card includes a flexible belt. At least a pair of connecting elements are integrally formed with the belt. The connecting elements include a cross-beam with an inclined surface. A locking element is disposed between the pair of connecting elements in order to prevent the connecting elements from approaching one another. The locking element is removable from the pair of connecting elements to allow for the approaching of the connecting elements to one another.Type: GrantFiled: June 20, 2002Date of Patent: June 15, 2004Assignee: Maschinenfabrik Rieter AGInventors: Christian Sauter, Paul Cahannes, Peter Weber
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Patent number: 6704970Abstract: A flat bar assembly is provided for use with a carding machine having a carding cylinder, the carding cylinder having clothing. The assembly has a flat bar, flat bar clothing attached to the flat bar, and an equalizing layer between the flat bar and the flat bar clothing. The flat bar clothing is for positioning opposite the carding cylinder clothing, and the equalizing layer fills a space between the flat bar and the flat bar clothing to compensate for distance differences between the flat bar clothing and the flat bar and to locate the flat bar clothing at a predetermined position relative to the flat bar.Type: GrantFiled: August 15, 2002Date of Patent: March 16, 2004Assignee: Trützschler GmbH & Co. KGInventors: Andreas Ebenhoh, Gerd Pferdmenges, Armin Leder
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Patent number: 6691373Abstract: A carding machine includes a carding cylinder and a plurality of traveling flat bars. Each flat bar has a flat bar clothing carried on an underside of the flat bar for cooperating with the cylinder clothing. The flat bar clothing of the flat bars is oriented at an adjustable angle to the cylinder clothing. Each flat bar has first and second flat bar parts at a longitudinal flat bar end. A first arcuate slide guide is supported adjacent a radial face of the carding cylinder, and the first flat bar part of the flat bars rides on the first slide guide. A second arcuate slide guide is supported adjacent the radial face of the carding cylinder, and the second flat bar part of the flat bars rides on the second slide guide. The second slide guide is wedge-shaped and is shiftable in a circumferential direction of the carding cylinder.Type: GrantFiled: May 9, 2002Date of Patent: February 17, 2004Assignee: Trützschler GmbH & Co. KGInventor: Armin Leder
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Publication number: 20040000035Abstract: A carding machine comprises a main drum fed by a feed system with roughly attenuated and cleaned fibres, a plurality of fixed clothed segments, and opening cylinders or briseurs which feed the said main drum at different points of the main drum.Type: ApplicationFiled: June 30, 2003Publication date: January 1, 2004Inventors: Claudio Locatelli, Silvano Patelli
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Publication number: 20040000034Abstract: A card top bar for a carding machine, has a carrying member and a releasable clothing portion in which card top bar there are provided two card top heads, each of which slides on a slideway, the card top heads comprise at least one sliding region, which is in contact with the slideway, and at least one fixing region, which is in engagement with the rest of the card top bar and which at the same time holds the sliding region.Type: ApplicationFiled: June 3, 2003Publication date: January 1, 2004Applicant: TRUTZSCHLER GMBH & CO. KGInventors: Michael Schurenkramer, Armin Leder
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Publication number: 20030221293Abstract: Flat end head with a mounting section for the flat rod and at least one sliding surface for progressive movement on a sliding guide of a card said sliding guide consisting of a polymer material.Type: ApplicationFiled: April 9, 2003Publication date: December 4, 2003Applicant: MASCHINENFABRIK RIETER AGInventor: Peter Gujer
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Patent number: 6578237Abstract: Device for cleaning the guides of travelling flats in a flat carding machine, to eliminate from these deposits of foreign material found in the carded fibrous material, consisting in fitting the travelling flats assembly with flats provided with scraping or cleaning elements which come into contact with the surfaces of the guides on which the elements on which the flats rest are pulled.Type: GrantFiled: December 20, 2001Date of Patent: June 17, 2003Assignee: Marzoli S.p.A.Inventors: Silvano Patelli, Marco Facchinetti, Giovanni Battista Pasini
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Publication number: 20030070261Abstract: A flat bar is provided for use in a carding machine having a roller with clothing. The flat bar is for arranging opposite the clothing on the roller. The flat bar has a flat bar support body having a recess, a clothing support having a first side, the first side being positioned in the recess, flat bar clothing attached to a second side of the clothing support, the second side being opposite the first side, and at least one fastening element that secures the first side of the clothing support in the recess.Type: ApplicationFiled: November 13, 2002Publication date: April 17, 2003Inventor: Gerd Pferdmenges
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Patent number: 6477742Abstract: A carding machine includes a main carding cylinder having a cylindrical surface carrying a cylinder clothing; a cover arrangement extending along a part of the cylindrical surface at a clearance therefrom to define a space between the cylinder clothing and the cover arrangement; a first opening provided in the cover arrangement and communicating with the space between the cylinder clothing and the cover arrangement; and a device for generating a pressurized air stream. The device communicates with the first opening for introducing the pressurized air stream through the first opening into the space between the cylinder clothing and the cover arrangement to impinge upon the cylinder clothing carrying fiber material thereon. A second opening which is provided in the cover arrangement communicates with the space between the cylinder clothing and the cover arrangement for removing the pressurized air stream, laden with waste material separated from the fiber material.Type: GrantFiled: January 15, 2002Date of Patent: November 12, 2002Assignee: Trützschler GmbH & Co. KGInventors: Gerd Pferdmenges, Robert Pischel
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Publication number: 20020069486Abstract: The invention relates to a device for adjusting the work gap between the points of flat clothings and the points of the cylinder clothing of a card, whereby the flat bars provided with clothings are led across a partial area of the drum circumference on both sides of the card on respective, convex bent sliding guides, and whereby their sliding surfaces with regard to the drum axis of rotation are being radially adjustable. Each sliding guide has the form of a sandwich type design with a radially inner support which can also be divided into individual supporting sections, and into a radially outer, continuous flex bend, whereby between the flex bend and the radially inner support a centre core is provided which is provided with one or several adjusting elements.Type: ApplicationFiled: August 1, 2001Publication date: June 13, 2002Applicant: Maschinenfabrik Rieter AGInventors: Olivier Wust, Christoph Staheli, Christian Sauter, Rene Schmid, Gotz Theodor Gresser, Jurg Faas
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Patent number: 6353972Abstract: A carding machine includes a main carding cylinder and a traveling flats assembly including flat bars circulating in a path and cooperating with the main carding cylinder. The carding machine further includes an apparatus for cleaning the flat bars. The apparatus includes a stationary track extending adjacent and transversely to the travel path of the flat bars; a carriage mounted on the track for back-and-forth travel thereon between opposite track ends; a blow nozzle mounted on the carriage and oriented at an oblique angle to the flat bar clothing of a flat bar situated in an effective range of the blow nozzle; and an arrangement for supplying pressurized air to the blow nozzle for causing it to eject an air jet for impinging on the flat bar clothing and for propelling the carriage along the track.Type: GrantFiled: April 30, 2001Date of Patent: March 12, 2002Assignee: Trützschler GmbH & Co. KGInventor: Erwin Berner
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Patent number: 6314620Abstract: A carding machine includes flat bars traveling in an endless path. First and second end rolls periodically reverse the travel direction of each flat bar. First and second drive shafts carry and rotate the respective first and second end rolls. An apparatus for cleaning the flat bars includes a throughgoing, eccentric aperture provided in a radial wall of the first end roll. At any time at least two mutually adjoining flat bars, situated on the first end roll, are aligned at least partially with the aperture. A suction inlet adjoins the radial wall of the first end roll for being periodically brought into alignment with the aperture as the first end roll rotates. A suction chamber is formed by a space bounded by the adjoining flat bars and a surface of the first drive shaft.Type: GrantFiled: April 12, 2001Date of Patent: November 13, 2001Assignee: Trützschler GmbH & Co. KGInventors: Armin Leder, Gerd Pferdmenges
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Publication number: 20010023520Abstract: A carding machine includes a main carding cylinder and a traveling flats assembly including flat bars circulating in a path and cooperating with the main carding cylinder. The carding machine further includes an apparatus for cleaning the flat bars. The apparatus includes a stationary track extending adjacent and transversely to the travel path of the flat bars; a carriage mounted on the track for back-and-forth travel thereon between opposite track ends; a blow nozzle mounted on the carriage and oriented at an oblique angle to the flat bar clothing of a flat bar situated in an effective range of the blow nozzle; and an arrangement for supplying pressurized air to the blow nozzle for causing it to eject an air jet for impinging on the flat bar clothing and for propelling the carriage along the track.Type: ApplicationFiled: April 30, 2001Publication date: September 27, 2001Inventor: Erwin Berner
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Publication number: 20010020318Abstract: A carding machine includes flat bars traveling in an endless path. First and second end rolls periodically reverse the travel direction of each flat bar. First and second drive shafts carry and rotate the respective first and second end rolls. An apparatus for cleaning the flat bars includes a throughgoing, eccentric aperture provided in a radial wall of the first end roll. At any time at least two mutually adjoining flat bars, situated on the first end roll, are aligned at least partially with the aperture. A suction inlet adjoins the radial wall of the first end roll for being periodically brought into alignment with the aperture as the first end roll rotates. A suction chamber is formed by a space bounded by the adjoining flat bars and a surface of the first drive shaft.Type: ApplicationFiled: April 12, 2001Publication date: September 13, 2001Inventors: Armin Leder, Gerd Pferdmenges
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Publication number: 20010018781Abstract: An arrangement for a carding machine for parallel arrangement of fibers, includes a carding track; a plurality of flat bars arranged for being guided along the carding track; clothing positioned respectively on each flat bar, the clothing including clothing structure that engages in the fibers; and a mechanism for releaseably fastening the clothing to each flat bar.Type: ApplicationFiled: February 20, 2001Publication date: September 6, 2001Inventor: Gerhard Wurst
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Patent number: 6269522Abstract: A method and apparatus for operating a carding machine having a drum with a drum fitting and a plurality of card flats wherein each card flat is provided with a card flat fitting. A predetermined distance between the drum fitting and the card flat fittings is adjusted by conditioning the running surfaces of the card flats.Type: GrantFiled: November 18, 1999Date of Patent: August 7, 2001Assignee: Graf & Cie AGInventors: Ralph A. Graf, Stefan Geisser
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Patent number: 6226837Abstract: A carding machine includes a main carding cylinder, a travelling flats assembly having a plurality of flat bars provided with a clothing cooperating with the clothing of the main carding cylinder; an endless flat bar driving element trained about end sprockets and circulating the flat bars in an endless path; a flat cleaning device supported at a location above the flat bar driving element and including a rotatably supported flat brush roller. A gearing is provided which has an input shaft connected to a power drive, a first output shaft connected to one of the end sprockets for circulating the flat bar driving element and a second output shaft connected to the flat brush roller for rotating the same. The first and second output shafts have a constant distance from one another.Type: GrantFiled: September 30, 1999Date of Patent: May 8, 2001Assignee: Trützschler GmbH & Co. KGInventors: Armin Leder, Helmut Mösges
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Patent number: 6167594Abstract: A carding machine includes a main carding cylinder, a travelling flats assembly having a plurality of flat bars provided with a clothing cooperating with the clothing of the main carding cylinder; an endless flat bar driving element trained about end sprockets and circulating the flat bars in an endless path; a flat cleaning device supported at a location above the flat bar driving element and including a rotatably supported flat brush roller. A shifting device is provided for raising the flat bar driving element and the flat bars situated at the location towards the flat brush roller for establishing a contacting relationship between the flat brush roller and the clothing of the respective flat bars and for lowering the flat bar driving element and the flat bars situated at the location away from the flat brush roller for discontinuing a contacting relationship between the flat brush roller and the clothing of the respective flat bars.Type: GrantFiled: September 30, 1999Date of Patent: January 2, 2001Assignee: Tr{umlaut over (u)}tzschler GmbH & Co., KGInventor: Thomas Steinert
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Patent number: 6101680Abstract: A flat of a revolving flat card is provided with a clothing the points of which are subdivided into groups. The flat preferentially presents an area provided with clothing of a length of more than 1000 mm. The groups each may present a "heel", or a clothing plane each respectively, facing the main drum. The groups can be formed by respective clothing strips (flexible clothing) fastened on a support member to extend in the longitudinal direction thereof, or by saw tooth wire strips (metallic card clothing) arranged side by side and extending in transverse direction of the flat.Type: GrantFiled: August 31, 1998Date of Patent: August 15, 2000Assignee: Maschinenfabrik Rieter AGInventors: Beat Naf, Theodore Gresser Gotz, Jurg Faas
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Patent number: 6081971Abstract: A traveling flats assembly of a carding machine includes first and second end sprockets; an endless belt supported by the first and second end sprockets; a plurality of flat bars arranged in a series along the belt; a coupling arrangement for connecting the flat bars to the belt for being carried by the lower belt flight through a working zone in which the flat bars cooperate with the main carding cylinder of the carding machine and for being carried by the upper belt flight through a return zone; a supporting component having an arcuate supporting surface; a first concave slide guide extending parallel to one part of a circumference of the first end sprocket for guiding and holding the flat bars as they travel about the first end sprocket; a second concave slide guide extending parallel to one part of a circumference of the second end sprocket for guiding and holding the flat bars as they travel about the second end sprocket; and a convex slide guide extending through the work zone and lying on the supportinType: GrantFiled: June 7, 1999Date of Patent: July 4, 2000Assignee: Trutzschler GmbH & Co. KGInventors: Armin Leder, Ralf Meger
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Patent number: 6047446Abstract: A carding machine includes a main carding cylinder having a cylinder axis and carrying a cylinder clothing on a circumferential surface thereof and a traveling flats assembly cooperating with the main carding cylinder along a circumferential length portion thereof. The traveling flats assembly includes a plurality of flat bars each having a flat bar clothing cooperating with the cylinder clothing; and a drive member for moving the flat bars in unison in an endless path; a rigid support member fixedly held on a machine frame laterally of the main carding cylinder and having a convex supporting surface; and a slide guide at least indirectly held on the supporting surface of the support member. The slide guide has a convex upper surface supporting the flat bars for sliding motion thereon and an opposite, lower surface. The radial distance between clothing points of the flat bar clothings and the carding cylinder clothing are determined and are changeable by the shape and/or the position of the slide guide.Type: GrantFiled: June 4, 1999Date of Patent: April 11, 2000Assignee: Trutzschler GmbH & Co. KGInventors: Armin Leder, Robert Pischel
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Patent number: 5974628Abstract: A feed roller with clothing, the so-called taker-in (1A), feeds a first carding cylinder (3,) which presents it to a second carding cylinder (7) which rotates at greater speed than that of the first carding cylinder and which in turn presents the material to a third even faster carding cylinder (11), which in turn presents it to the doffer (13); the clothings (3A,7A,11A) of the successive cylinders are gradually thicker-set and more inclined.Type: GrantFiled: March 13, 1997Date of Patent: November 2, 1999Inventor: Marcello Giuliani
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Patent number: 5974629Abstract: 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.Type: GrantFiled: December 10, 1997Date of Patent: November 2, 1999Assignee: Trutzschler GmbH & Co. KGInventors: Ferdinand Leifeld, Stefan Schlichter
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Patent number: 5956811Abstract: In some embodiments, the drive belt for receiving the flats in a revolving flat card employs pairs of connecting elements for snap-fitting into an aperture in an end head at one end of a flat. Each connecting element has an inclined surface which extends from the body of the belt to form an acute angle of from 60.degree. to 80.degree.. The end head of each flat has a rectangular opening to receive the pair of connecting elements and has transverse molding each provided with an inclined surface to mate with the inclined surfaces of the connecting elements of the belt. In another embodiment, the drive belt employs pairs of ribs of simple rectangular section to engage within a buckle element of a flat while each rib is able to flex about a root of the rib at the belt body.Type: GrantFiled: July 15, 1996Date of Patent: September 28, 1999Assignee: Rieter Machine Works, Ltd.Inventors: Paul Cahannes, Oliver Wuest
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Patent number: 5926919Abstract: A carding machine for treating a fibrous feedstock and having an adjustable cleaning device arranged at any position on the machine where removal of waste from the feedstock is required while undergoing treatment, and a machine management device for monitoring the waste removal by the cleaning device and for providing a compensatory feedback adjustment of the cleaning device when the monitored waste deviates from a desired state, in which the monitoring of the waste removed can comprise a weighing device, an optical device, or a filter device which acts on a stream of air-borne waste.Type: GrantFiled: July 7, 1997Date of Patent: July 27, 1999Assignee: Carding Specialist LimitedInventor: John Varga
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Patent number: 5894636Abstract: Method for producing a card sliver and carding machine therefor. The flexible bend of a card is set automatically by the machine control by means of a controllable actuator system on the basis of a wear characteristic, this characteristic representing the wear as a function of the production of a given material.Type: GrantFiled: December 2, 1996Date of Patent: April 20, 1999Assignee: Maschinenfabrik Rieter AGInventors: Christian Sauter, Jurg Faas
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Patent number: 5761770Abstract: A carding flat and a system for guiding and driving it in a card with moving flats driven by articulated chains, in which coupling between the flats and chains is achieved by a form fit using recesses and projections without fixed retention devices, so that these elements are not mutually constrained in the direction perpendicular to the chain movement.Type: GrantFiled: July 20, 1995Date of Patent: June 9, 1998Assignee: Fratelli Marzoli & C. S.p.A.Inventors: Claudio Locatelli, Silvano Patelli, Antonio Cossandi
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Patent number: 5749126Abstract: A carding flat and a system for guiding and driving it in a card with moving flats driven by toothed belts, in which coupling between the flats and belts is achieved by a form fit between cavities and projections without fixed retention means, so enabling these elements to freely rotate about the coupling axis.Type: GrantFiled: March 3, 1997Date of Patent: May 12, 1998Assignee: F.LLI Marzoli & C. S.p.A.Inventors: Silvano Patelli, Antonio Cossandi, Giovanni Battista Pasini
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Patent number: 5745955Abstract: A sliding flat formed from section bars for a card with moving flats driven by toothed drive belts, with upper return guides for the flats. The flats are provided in their ends with pins for cylindrical coupling with the toothed belts, said coupling pins projecting from the toothed belt such that it is they which rest on the return guides instead of the teeth of the toothed belt.Type: GrantFiled: March 3, 1997Date of Patent: May 5, 1998Assignee: F.LLI Marzoli & C. S.p.A.Inventors: Silvano Patelli, Antonio Cossandi, Giovanni Battista Pasini
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Patent number: 5625924Abstract: Method for producing a card sliver and carding machine therefor. The flexible bend of a card is set automatically by the machine control by means of a controllable actuator system on the basis of a wear characteristic, this characteristic representing the wear as a function of the production of a given material.Type: GrantFiled: July 28, 1995Date of Patent: May 6, 1997Assignee: Maschinenfabrik Rieter AGInventors: Christian Sauter, Jurg Faas
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Patent number: 5398381Abstract: A fiber processing machine includes a fiber processing roll carrying a first clothing on the surface thereof; and a countermember carrying a second clothing thereon. The first and second clothings cooperate with one another during operation of the fiber processing machine. A sensor determines a clearance between facing points of the first and second clothings. The sensor is mounted on the countermember and faces the first clothing when effecting measurement of the clearance.Type: GrantFiled: October 22, 1993Date of Patent: March 21, 1995Assignee: Truzschler GmbH & Co. KGInventors: Stefan Schlichter, Ferdinand Leifeld
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Patent number: 5295284Abstract: The working width of a carding machine for short staple fiber carding is reduced. As a result, the precision of the working elements and the complete arrangement is increased. The productivity of the carding machine is thus also increased.Type: GrantFiled: March 15, 1991Date of Patent: March 22, 1994Assignee: Maschinenfabrik Rieter AGInventors: Robert Demuth, Paul Staheli, Kurt Weber, Peter Fritzsche
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Patent number: 5272791Abstract: A carding machine comprises a first carding cylinder, a roller and plate for feeding material to be carded on to the first carding cylinder, a second carding cylinder, a roller and takerin for transferring material from the first to the second carding cylinder, and a roller for stripping carded material from the second carding cylinder. The first and second carding cylinders are driven in the same direction of rotation. A single set of flats is driven along a closed path, parts of which pass immediately adjacent to an arc of the circumference of each of the first and second carding cylinders. The flats thus cooperate in carding actions with both carding cylinders in turn.Type: GrantFiled: May 10, 1993Date of Patent: December 28, 1993Assignee: Carding Specialists (Canada) Ltd.Inventor: Michael J. Rimmer
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Patent number: 5142742Abstract: A main cylinder casing segment for use with a revolving flat on a card, each of the segments including opposite end portions, adapted for fastening on a frame of the card, and a longitudinal body between the end portions for covering the main cylinder. The body includes two plate-shaped parts, a first of the parts has a surface adapted to be inwardly directed toward a working area of the card, during operation of the card, and a second of the parts constituting a stiffener for the segment. Further, the first part of the second part are connected for transferring bending stresses between the parts. The segment is thus formed as a hollow body, preferably extruded.Type: GrantFiled: December 4, 1990Date of Patent: September 1, 1992Assignee: Maschinenfabrik Rieter AGInventors: Daniel Erni, Paul Staheli
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Patent number: 5142741Abstract: A method and apparatus for cleaning or carding textile fibers between a fine cleaning or carding drum (2) with clothing (7) fixed thereon and carding elements (5) surrounding said drum, a clothing (9, 10, 11, 12, 13, 14) also being provided thereon. The teeth (9, 10, 11, 12, 13, 14) of the carding elements (5) are so provided differently in the direction of movement (8) of the rotating drum (2) that the tooth (9), for example, has what is known as a negative carding direction with a relatively large angle (.alpha.) and the tooth (14) a positive carding direction with a relatively small angle (.alpha.) and the teeth therebetween have different attack angles as shown in FIG. 3. This gives different cleaning or carding effects within a predetermined peripheral zone of the drum.Type: GrantFiled: December 4, 1990Date of Patent: September 1, 1992Assignee: Maschinenfabrik Rieter AGInventors: Robert Demuth, Peter Fritzsche, Eduard Nussli, Paul Staheli
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Patent number: 5127134Abstract: A cooling system and method for a carding machine having covering elements covering the swift of the card and a revolving flats arrangement defining the main carding zone. Heat is removed from the covering elements and/or the revolving flats arrangement by passing a heat-receiving medium, such as a liquid or gas, through ducts formed in covering element segments and/or between adjacent flats of the revolving flats arrangement.Type: GrantFiled: December 5, 1990Date of Patent: July 7, 1992Assignee: Maschinenfabrik Rieter AGInventors: Robert Demuth, Daniel Erni, Peter Fritzche
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Patent number: 5090092Abstract: A carding flat assembly has regenerated and reconditioned members B and junctures at end portions of the T-shaped cast iron flat member A through the provision of a slide C defining spaced ledges for sliding upon the flexible bend of the carding machine and a projection D extending inwardly of the T-shaped cast iron flat beyond the juncture having integral securement in the assembly.Type: GrantFiled: August 31, 1990Date of Patent: February 25, 1992Assignee: John D. Hollingsworth on Wheels, Inc.Inventor: Gene A. Dempsey
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Patent number: 5075930Abstract: A card is provided with a cover assembly adapted to provide enhanced cleaning efficiency. The cover is 4 covers in one with each part being set at a prescribed distance from the carding cylinder to induce increased cleaning. Air drawn through a gap at the first cover disturbs and intermingles with the fibers and loosen dirt. The fourth cover exerts centripetal action to strip away waste from the fiber.Type: GrantFiled: December 19, 1989Date of Patent: December 31, 1991Assignee: Crosrol LimitedInventors: Peter Carey, Michael Carstairs
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Patent number: 5022121Abstract: A carding machine including a carding drum and a plurality of carding elements cooperating with the carding drum is provided with a cleaning belt carrying a card cloth and mounted for displacement transversely of the direction of rotation of the carding drum, and an exhaustor device cooperating with the cleaning belt. The card cloth conveys contaminations contained in the fibre material towards one side, resulting in transverse displacement of the fibre material and thus in an uneven thickness of the fibre web. The contaminations are moreover not completely removed, but rather accumulated on one side of the fibre web.Type: GrantFiled: July 24, 1989Date of Patent: June 11, 1991Assignee: Hollingsworth GmbHInventor: Hans Rutz
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Patent number: 4996746Abstract: The flat cleaning apparatus employs a comb for loosening fibers and dirt particles carried by the revolving flats of the revolving flat clothing. In addition, a casing which travels across the width of the revolving system has a suction nozzle for drawing up the loosened strips of fibers and dirt particles. In addition, a brush is provided downstream of the suction nozzle which is movable relative to the flats to clean between the flats so as to release deep-seated dirt after the strips are removed. The brush is mounted in a chamber which communicates with the suction nozzle so that a suction force is available for removing the deep-seated dirt brought up by the brush.Type: GrantFiled: August 21, 1989Date of Patent: March 5, 1991Assignee: Rieter Machine Works, Ltd.Inventors: Giuseppe Verzilli, Robert Demuth