Card Clothing Patents (Class 19/114)
  • Patent number: 10865503
    Abstract: A sawtooth wire in which each tooth has a tooth tip and a tooth front having a first segment extending from the tooth tip towards a tooth side remote from a bearing edge and towards the tooth back and merging into a concave second segment that merges into a third segment extending towards the tooth side and merging into a concave fourth segment. that merges into a tooth back of the next tooth. The length of a tangent from a turning point of the second segment to the tooth side is greater than or equal to half the spacing between the tooth tip and the tooth side.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: December 15, 2020
    Assignee: TRUETZSCHLER GMBH & CO. KG
    Inventors: Peter Gäbler, Friedrich Haarer
  • Patent number: 10280535
    Abstract: An all-steel clothing for a flat card or roller card for processing textile fibers includes a sawtooth wire having teeth arranged one after another in a wire running direction. The tooth contour of the teeth is defined, starting from a tooth base, as at least transitioning into a tooth back, further transitioning into a tooth tip portion, further transitioning into a tooth face and again transitioning into a subsequent tooth base. The tooth tip portion has a predetermined tooth tip length (L) in the wire running direction and a tooth prominence on top of a part of the tooth tip portion. The tooth prominence has a tooth prominence length (l) which is less than the tooth tip length (L).
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: May 7, 2019
    Assignee: TRUETZSCHLER GMBH & CO. KG
    Inventor: Peter Gäbler
  • Patent number: 10100442
    Abstract: A circular comb for a comber includes a basic body fastened on a shaft in a rotationally locked manner. A comb clothing is supported on an outer circumference of the basic body and includes clothing tips that define an outer enclosing circle. A guide element following the basic body viewed in a combing direction of the comb clothing includes a first guide surface that adjoins the basic body, is arranged within the enclosing circle, and has a radial clearance from the enclosing circle. The guide element includes a second guide surface that adjoins and forms an obtuse angle with the first guide surface. A length of the second guide surface is at least twice as great as a length of the first guide surface, as viewed in a circumferential direction of the circular comb.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: October 16, 2018
    Assignee: Maschinenfabrik Rieter AG
    Inventor: Jacques Peulen
  • Patent number: 9663877
    Abstract: The card wire comprises a plurality of teeth inclined at an angle with the rib portion. The teeth have a front portion and a back portion joining at the tip of the teeth; and a base segment connecting the front portion to the back portion of the preceding tooth. The front portion is the inner portion of the tooth leaning towards the rib portion. The back portion is the outer portion of the tooth. The front portion comprises at least two undercut segments. The second undercut segment is spaced further away from the tip of the tooth than the first undercut segment. Each undercut segment has an undercut angle, being the minimum of the angles with the longitudinal direction of the card wire, of the tangents to each point of the part of the undercut segment going—when observed from the tip—inwards from the front portion.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: May 30, 2017
    Assignee: GROZ-BECKERT KG
    Inventor: Yuning Zhang
  • Patent number: 9433882
    Abstract: A filter membrane has at its flow in side a first metal fiber web, at least two metal fiber layers, and a fine and at least one coarser fiber layer. The fine fiber layer is located at the flow in side of the filter membrane and the at least one coarser fiber layer is located downstream of the fine fiber layer. The filter membrane has at its flow out side, a stack of one or more first two-dimensional metal structures with constant and regular openings. The filter membrane also has at least one set formed by a second metal fiber web and a stack of one or more second two-dimensional metal structure with constant and regular openings; the at least one set is provided in between the stack of one or more two-dimensional metal structures that are having constant and regular openings, and the first metal fiber web.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: September 6, 2016
    Assignee: NV BEKAERT SA
    Inventors: Frank Verschaeve, Inge Schildermans, Pavlos Papadopoulos
  • Patent number: 9404201
    Abstract: A metallic card wire has an elongated rib portion and teeth. The teeth have a front segment, a top segment and a back segment. The front segment has the connection of the tooth from the elongated rib portion and the front segment including a tip which is actively taking fibers in carding. The top segment has at least one hunch after the tip in the direction of the back segment. If more than one hunch is present the first hunch is the hunch positioned closest to the tip; if only one hunch is present this hunch is the first hunch. The back segment forms the connection of the top segment towards the elongated rib portion and the front segment of the next tooth.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: August 2, 2016
    Assignee: GROZ-BECKERT KG
    Inventor: Yuning Zhang
  • Patent number: 9145625
    Abstract: A card wire comprises an elongated rib portion and teeth. The teeth have a front portion and a back portion. The teeth hang over towards their front portion. The front portion and back portion merge at the tip of the tooth. The front portion comprises at least three sections: a first section extends from the tip of the tooth in the direction of the rib portion, a second section extends below the first section in the direction of the rib portion and a third section extends from the end of the second section in the direction of the rib portion. The second section comprises a straight part and a curved segment, wherein the straight part has a minimum length of 0.10 mm and the straight part has an angle between 10 and 30 degrees relative to the length direction of the card wire.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: September 29, 2015
    Assignee: GROZ-BECKERT KG
    Inventors: Yuning Zhang, Philip Furnier, Piet Vanacker, Laurent Peries
  • Patent number: 8943654
    Abstract: The invention relates to a clothing carrier (3) for flexible or semi-rigid clothings (2) for processing fiber material, wherein the clothing carrier (3) has a longitudinal direction (6) and a transverse direction (7). The transverse direction (6) corresponds to a working direction (A) of the clothing (2). The clothing carrier (3) exhibits a maximum tensile force (FL) in the longitudinal direction (6) which is greater than a maximum tensile force (FQ) in the transverse direction (7).
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: February 3, 2015
    Assignee: Graf + Cie AG
    Inventors: Günter Steinbach, Peter Artzt, Volker Jehle
  • Publication number: 20140331455
    Abstract: Electrospinning from a melt or solution by means of an electric field between a fibre source such as a spinneret or a bubble surface and a moving collector comprising a wire card of which the wires are electrically connected. The spinneret or melt or solution may be held at high potential and the wires earthed. The method produces an aligned nanofibre web that can be made into strands, yarns, cable or rope or non-woven fabrics such as stitch bonded and stitch knitted fabric.
    Type: Application
    Filed: August 29, 2012
    Publication date: November 13, 2014
    Inventors: George Stylios, Liang Luo
  • Patent number: 8863785
    Abstract: In the mounting device (1) in accordance with the invention, the mounting arm (4) is held on a guide arrangement (11), the guide direction of said guide arrangement being oriented parallel to the rotational axis of the drum (3) to be fitted. A force measuring arrangement 21 is provided to detect the tensile force in the profile wire 9, said force measuring arrangement detecting the total force acting on the mounting arm (4), at least in longitudinal direction of the wire. In doing so, essentially all the forces acting on the profile wire (9) are detected, namely, the braking forces of a brake arrangement (25) as well as the braking forces of other arrangements such as, for example of alignment arrangements 28, tilting arrangements 32 or the like.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: October 21, 2014
    Assignee: Groz-Beckert KG
    Inventors: Johannes Bruske, Benjamin Beck, Carmen Sautter
  • Publication number: 20140259537
    Abstract: A metallic card wire has an elongated rib portion and teeth. The teeth have a front segment, a top segment and a back segment. The front segment has the connection of the tooth from the elongated rib portion and the front segment including a tip which is actively taking fibres in carding. The top segment has at least one hunch after the tip in the direction of the back segment. If more than one hunch is present the first hunch is the hunch positioned closest to the tip; if only one hunch is present this hunch is the first hunch. The back segment forms the connection of the top segment towards the elongated rib portion and the front segment of the next tooth.
    Type: Application
    Filed: October 5, 2012
    Publication date: September 18, 2014
    Applicant: NV BEKAERT SA
    Inventor: Yuning Zhang
  • Patent number: 8789244
    Abstract: A wire profile having a rib portion and plurality of teeth over the length of said rib portion, wherein said plurality of teeth is inclined at an angle with respect to the said rib portion, wherein said teeth has a front portion and a back portion, wherein said front portion is the inner portion of the said teeth leaning towards the rib portion and said back portion is the outer portion of the said teeth, and wherein at least one teeth with said back portion comprises at least one nose cut segment.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: July 29, 2014
    Assignees: NV Bekaert SA, Bekaert Carding Solutions NV
    Inventors: Lieven Vangheluwe, Philip Furnier
  • Publication number: 20140173854
    Abstract: A method and an apparatus for separating sewing threads from pieces of carbon fibre mats or bundles of carbon fibres by means of rollers covered with card clothing. The mat pieces or fibre agglomerates are broken up and separated using the different mechanical properties of the fibres.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Inventor: Hubert Hergeth
  • Patent number: 8745826
    Abstract: A wire profile comprises a rib portion and a plurality of teeth over the length of the rib portion. The teeth are sloped with a back slope representing the backbone of the teeth and a front slope representing the side in direct contact with fiber. The back slope has a tangent forming a hack angle with the rib portion, and the front slope is divided into at least two segments, a tip segment converging with the back slope to form a tip of the teeth and serving to penetrate between fibers, and an undercut segment to retain the fibers. The undercut segment has a tangent forming an undercut angle with the rib portion, and the undercut angle is at each point in the undercut segment greater than the maximum of the hack angle and smaller than the smallest value of the tip angle.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: June 10, 2014
    Assignees: NV Bekaert SA, Bekaert Carding Solutions NV
    Inventors: Lieven Vangheluwe, Philip Furnier, Karel Van Eenooghe
  • Publication number: 20140020211
    Abstract: The invention relates to a clothing carrier (3) for flexible or semi-rigid clothings (2) for processing fiber material, wherein the clothing carrier (3) has a longitudinal direction (6) and a transverse direction (7). The transverse direction (6) corresponds to a working direction (A) of the clothing (2). The clothing carrier (3) exhibits a maximum tensile force (FL) in the longitudinal direction (6) which is greater than a maximum tensile force (FQ) in the transverse direction (7).
    Type: Application
    Filed: June 3, 2013
    Publication date: January 23, 2014
    Inventors: Günter Steinbach, Peter Artzt, Volker Jehle
  • Publication number: 20130340206
    Abstract: A working assembly (1) includes a rotatable hollow drum or cylinder (2) having a cylindrical wall (3) with ends having transverse header walls (4) with openings (16, 17), and with a longitudinal shaft (5). The external lateral surface of the cylindrical wall (3) has a clothing device intended to interact with the fibers being carded. First and second support uprights (6, 7) are fixed in operation, and adapted to support the ends of the shaft (5) of the drum or cylinder (2) for rotation about a preferably horizontal axis. The support uprights (6, 7) and the drum or cylinder (2) are configured and coupled with each other such as to define at least one fluid path for a flow of a refrigerating fluid, which extends through the openings (16, 17) and inside the drum or cylinder (2) and is adapted to cause cooling of the lateral cylindrical wall (3) thereof.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 26, 2013
    Inventor: Marco Fano
  • Patent number: 8590110
    Abstract: The invention relates to a saw-tooth clothing for rollers of a carding machine or a carder. The saw-tooth clothing has a multiplicity of successively arranged teeth, wherein each tooth has a tooth front and a tooth back and a tooth tip. The tooth backs of the teeth have in each case a certain distance from the tooth front of the in each case following tooth and form a tooth space which extends from a tooth root to the tooth tips. Between the tooth tips and the tooth root, the teeth have in each case on their tooth back and on their tooth front at least one embossment which reduces the distance between the tooth back of the teeth and the tooth front of the in each case following tooth.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: November 26, 2013
    Assignee: Graf + Cie AG
    Inventors: Josef Iten, Felix Hasler, Nikolaos Pavlou
  • Publication number: 20130133159
    Abstract: A wire profile having a rib portion and plurality of teeth over the length of said rib portion, wherein said plurality of teeth is inclined at an angle with respect to the said rib portion, wherein said teeth has a front portion and a back portion, wherein said front portion is the inner portion of the said teeth leaning towards the rib portion and said back portion is the outer portion of the said teeth, and wherein at least one teeth with said back portion comprises at least one nose cut segment.
    Type: Application
    Filed: July 11, 2011
    Publication date: May 30, 2013
    Inventors: Lieven Vangheluwe, Philip Furnier
  • Publication number: 20130042437
    Abstract: A wire profile for card clothing comprising a rib portion and plurality of teeth over the length of said rib portion, wherein said teeth are sloped with back slope representing the backbone of said teeth and front slope representing the side in direct contact with fibre, said back slope having a tangent forming a back angle with the rib portion, said front slope being divided into at least two segments, a tip segment converging with the said back slope to form a tip of said teeth and said tip segment serving to penetrate between fibres, said tip segment having a tangent forming a tip angle with the rib portion, and an undercut segment to retain the fibres, said undercut having a tangent forming an undercut angle with the rib portion, said undercut angle being at each point in the undercut segment greater than the maximum of the back angle and being smaller than the smallest value of the tip angle.
    Type: Application
    Filed: May 3, 2011
    Publication date: February 21, 2013
    Inventors: Lieven Vangheluwe, Philip Furnier, Karel Van Eenooghe
  • Patent number: 8341807
    Abstract: A mounting device 12 for producing all-steel card clothings 2 with improved mounting quality. The mounting device 12 comprises a guide arrangement 28 for guiding the profile wire 3. The guide arrangement 28 may comprise, for example, an angle adjustment arrangement 32 comprising two brake jaws 30, 31. The mounting device 12 has at least one longitudinal axis 34, 45, about which the guide arrangement 28 can be pivoted. The guide arrangement 28 can be pivoted manually, with the use of a motor or by spring force. In addition, the guide arrangement 28 and the angle adjustment arrangement 32, respectively, can be adjusted in linear direction, and horizontally and vertically in a direction transverse to the longitudinal direction of the profile wire 38. Optionally, the guide arrangement 28 may replace a separate brake arrangement as well as a separate alignment arrangement.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: January 1, 2013
    Assignee: Groz-Beckert KG
    Inventors: Rene Conzelmann, Benjamin Beck, Carmen Sautter
  • Publication number: 20120255143
    Abstract: The invention relates to a saw-tooth clothing for rollers of a carding machine or a carder. The saw-tooth clothing has a multiplicity of successively arranged teeth, wherein each tooth has a tooth front and a tooth back and a tooth tip. The tooth backs of the teeth have in each case a certain distance from the tooth front of the in each case following tooth and form a tooth space which extends from a tooth root to the tooth tips. Between the tooth tips and the tooth root, the teeth have in each case on their tooth back and on their tooth front at least one embossment which reduces the distance between the tooth back of the teeth and the tooth front of the in each case following tooth.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 11, 2012
    Applicant: Graf + Cie AG
    Inventors: Josef Iten, Felix Hasler, Nikolaos Pavlou
  • Publication number: 20110139291
    Abstract: In the mounting device (1) in accordance with the invention, the mounting arm (4) is held on a guide arrangement (11), the guide direction of said guide arrangement being oriented parallel to the rotational axis of the drum (3) to be fitted. A force measuring arrangement 21 is provided to detect the tensile force in the profile wire 9, said force measuring arrangement detecting the total force acting on the mounting arm (4), at least in longitudinal direction of the wire. In doing so, essentially all the forces acting on the profile wire (9) are detected, namely, the braking forces of a brake arrangement (25) as well as the braking forces of other arrangements such as, for example of alignment arrangements 28, tilting arrangements 32 or the like.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 16, 2011
    Applicant: Groz-Beckert KG
    Inventors: Johannes BRUSKE, Benjamin Beck, Carmen Sautter
  • Publication number: 20110138580
    Abstract: A mounting device 12 for producing all-steel card clothings 2 with improved mounting quality. The mounting device 12 comprises a guide arrangement 28 for guiding the profile wire 3. The guide arrangement 28 may comprise, for example, an angle adjustment arrangement 32 comprising two brake jaws 30, 31. The mounting device 12 has at least one longitudinal axis 34, 45, about which the guide arrangement 28 can be pivoted. The guide arrangement 28 can be pivoted manually, with the use of a motor or by spring force. In addition, the guide arrangement 28 and the angle adjustment arrangement 32, respectively, can be adjusted in linear direction, and horizontally and vertically in a direction transverse to the longitudinal direction of the profile wire 38. Optionally, the guide arrangement 28 may replace a separate brake arrangement as well as a separate alignment arrangement.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 16, 2011
    Applicant: Groz-Beckert KG
    Inventors: Rene CONZELMANN, Benjamin Beck, Carmen Sautter
  • Patent number: 7917999
    Abstract: In an apparatus at a carding machine for cotton, synthetic fibers and the like, wherein at least one card flat having a card flat clothing is present, the card flat clothing is attached to the card flat, and the clothing is located opposite a roller, for example the cylinder, and an attaching means is present between the card flat and the card flat clothing. In order to make possible, in simple manner, a dimensionally stable clothed card flat and simpler and faster re-clothing (clothing replacement), at least one hook-and-loop closure is present between the card flat and those regions of the card flat clothing which face the card flat.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: April 5, 2011
    Assignee: Truetzschler GmbH. & Co. KG
    Inventors: Armin Leder, Hans Rosemann
  • Publication number: 20100306965
    Abstract: A method for fastening a clothing strip (10) to a card-flat bar (21, 31) by a fastening means in the form of clips (25, 35) is presented. In this case, the clips (5, 25, 35) are integrally formed onto the card-flat foot (23, 33) by press rams (12) guided simultaneously from both sides of the card-flat bar (21, 31) and parallel to the plane of the clothing strip (10). The clip (25, 35) integrally formed onto the card-flat foot (23, 33) loops around the latter with a looping angle (?) of less than 90° and more than 30° (degrees of angle). A corresponding tool for carrying out the method and also a revolving card flat are likewise proposed.
    Type: Application
    Filed: November 28, 2007
    Publication date: December 9, 2010
    Applicant: MASCHINENFABRIK RIETER AG
    Inventor: Hans-Peter Schatzmann
  • Patent number: 7818848
    Abstract: A saw-tooth clothing for rollers and/or cylinders of flat cards or roller cards has a foot region and an adjoining tooth region (blade) in which teeth have been formed by cutting, with a tooth front a tooth back and two side flanks, wherein between the tooth back and the tooth front of two adjacent teeth there is a gullet and the teeth consist of at least two portions, with a first portion, forming a technologically effective region. In order to provide a clothing that retains a high level of aggressiveness over its lifetime, the first portion of the tooth front is convex or approximately convex in the direction of movement of the clothing.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: October 26, 2010
    Assignee: Truetzschler GmbH & Co. KG
    Inventor: Juergen Maerz
  • Publication number: 20100236025
    Abstract: In a card flat bar having a card flat clothing, the card flat clothing is magnetically attached to the card flat bar body and, in use, lies opposite a clothed roller. In order to hold the clothing element against the card flat bar in a structurally simple way in the event of an increase in force on the clothing, especially to prevent the card flat clothing from making contact with the cylinder clothing, and to allow quick replacement of the card flat clothing strip, on the fibre material inlet side of the card flat clothing—seen in the direction of rotation of the roller—there is associated with the card flat bar a counter-bearing, stop or the like with which a base of the clothing co-operates in the direction towards the cylinder.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 23, 2010
    Applicant: Truetzschler Gmbh & Co., KG
    Inventors: Armin Leder, Andreas Ebenhöh
  • Patent number: 7797798
    Abstract: In the case of a saw-tooth wire for producing a saw-tooth all-steel clothing for a roller or a carding element of a spinning room machine, having an elongate base region (foot) and an adjoining toothed region (blade) in which teeth are formed by cutting, the teeth comprising a tooth front, a tooth back and two side flanks, between the tooth back and the tooth front of two successively arranged teeth there is a gullet. To produce a saw-tooth wire, which comprises in particular teeth of exact and uniform tooth geometry, the teeth of the saw-tooth wire are made by treating with a laser device.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: September 21, 2010
    Assignee: Truetzschler GmbH & Co. KG
    Inventor: Hans Rosemann
  • Patent number: 7743470
    Abstract: In a method for manufacturing sawtooth card clothings and all-steel card clothings for processing textile fibers in a carding process, a sawtooth wire is produced by generating teeth on a wire blank sequentially behind one another in a longitudinal direction of the wire blank, wherein the teeth extend transversely to the longitudinal direction away from a base area. The sawtooth wire is subjected at least in the area of the teeth to a hardening process under exclusion of oxygen in the area of the sawtooth wire. A device for performing the method has a heating chamber having an inlet opening and an outlet opening for the sawtooth wire passing through the heating chamber. An arrangement for generating an inert gas atmosphere in the area of the sawtooth wire passing through the heating chamber is provided.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: June 29, 2010
    Assignee: Graf + Cie AG
    Inventor: Ralph A. Graf
  • Patent number: 7735201
    Abstract: Card wiring includes a first carding wire including a number of rough, pointed, first teeth, and a second carding wire having smooth, blunt teeth. The rough teeth include a rough surface having a first coefficient of friction, an attack angle, and a back angle. The smooth blunt teeth have a smooth surface including a second coefficient of friction. The first teeth are adjacent to and spaced apart from the second teeth. The first coefficient of friction is sufficiently greater than the second coefficient of friction so that, in use, a fiber engaged by the rough, pointed, first tooth and by the smooth, blunt second tooth will be held sufficiently longer by the first rough tooth so that the fiber will be pulled in a direction transverse to a direction of movement of a web engaged by the first and second carding wires. Three or more carding wires may be provided.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: June 15, 2010
    Assignee: NV Bekaert SA
    Inventor: Carlton L. Reeves
  • Patent number: 7673374
    Abstract: In an apparatus at a spinning room machine, especially a flat card, roller card, cleaner or the like, for drawing a clothing onto a roller using a drawing-on device, the spinning room machine has an electronic control and regulation device. In order to provide an apparatus that is simple in terms of equipment and that makes possible checking of the drawing-on procedure and/or of the measurement data, a measurement device for registering data ascertained during drawing-on is associated with the drawing-on device, and the measurement device co-operates with the electronic control and regulation device of the spinning room machine for permitting passage of data between the drawing-on device and the control and regulation device.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: March 9, 2010
    Assignee: FA. Truetzschler GmbH & Co. KG
    Inventor: Fritz Hösel
  • Patent number: 7665188
    Abstract: In an apparatus on a carding machine for cotton, synthetic fibers and the like, in which at least one flat bar with a flat clothing is present, in which a clothing strip having a flat clothing, preferably wire hooks, arranged in a strip-form support element, is secured to a support body of the flat bar and lies opposite the clothing of a roller, e.g. the cylinder, the spacing between a surface defined by the tips of the flat clothing and the tip circle of the cylinder clothing decreases in the direction of rotation of the cylinder. In order to be able to alter and adapt the angle (offset) in a simple manner in terms of mechanical engineering, the top face, of the clothing strip and the tip surface of the flat clothing are not aligned parallel with one another.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: February 23, 2010
    Assignee: Trützschler GmbH & Co. KG
    Inventor: Thomas Landmesser
  • Publication number: 20090293232
    Abstract: In an apparatus on a carding machine having a cylinder and at least one doffer, in which the cylinder and the doffer each have an all-steel clothing having saw teeth, the clothing on the cylinder and the clothing on the doffer each have a point density per square inch (ppsi). For achieving increased production rate with the same quality or improved quality with the same production rate, the clothing on the doffer has a point density of at least 400 ppsi, and the ratio between the point density of the clothing of the cylinder and the point density of the clothing of the doffer influences the proportion of the fibre mass that is transferred from the cylinder to the doffer per revolution of the cylinder in the sense of a higher production rate or higher quality of the card.
    Type: Application
    Filed: May 15, 2009
    Publication date: December 3, 2009
    Applicant: Truetzschler GmbH & Co., KG
    Inventors: Achim Breuer, Christoph Farber, Jurgen Marz
  • Publication number: 20090265892
    Abstract: A fixing device fixes toothed elements to a component of a textile machine. The component of the textile machine can be either a top comb, a circular comb or a card flat. The fixing device includes a stationary bearing surface for the toothed elements and a flexible spring leg for pressing the toothed elements to the bearing surface by use of a holding force. The fixing device includes a device for neutralizing the holding force of the spring leg.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 29, 2009
    Applicant: Graf & Cie AG
    Inventor: Urs Mueller
  • Patent number: 7559122
    Abstract: A method is proposed for fixing a clothing strip on a base surface of a flat rod by means of at least one clothing clip which comprises a first terminal section for attachment to the flat rod and a second terminal section for attachment to the clothing strip. The method is characterised in that a central section of the at least one clothing provided between the first and the second terminal section is deformed directly before or after the clothing clip has been placed against the flat rod. A corresponding clothing clip and a corresponding pressing tool are furthermore proposed.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: July 14, 2009
    Inventors: Hans-Peter Schatzmann, Jürg Ott
  • Publication number: 20090158558
    Abstract: A saw-tooth clothing for rollers and/or cylinders of flat cards or roller cards has a foot region and an adjoining tooth region (blade) in which teeth have been formed by cutting, with a tooth front a tooth back and two side flanks, wherein between the tooth back and the tooth front of two adjacent teeth there is a gullet and the teeth consist of at least two portions, with a first portion, forming a technologically effective region. In order to provide a clothing that retains a high level of aggressiveness over its lifetime, the first portion of the tooth front is convex or approximately convex in the direction of movement of the clothing.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 25, 2009
    Applicant: Truetzschler GmbH & Co. KG
    Inventor: Jurgen Marz
  • Publication number: 20090151127
    Abstract: In an apparatus at a carding machine for cotton, synthetic fibres and the like, wherein at least one card flat having a card flat clothing is present, the card flat clothing is attached to the card flat, and the clothing is located opposite a roller, for example the cylinder, and an attaching means is present between the card flat and the card flat clothing. In order to make possible, in simple manner, a dimensionally stable clothed card flat and simpler and faster re-clothing (clothing replacement), at least one hook-and-loop closure is present between the card flat and those regions of the card flat clothing which face the card flat.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 18, 2009
    Applicant: Truetzschler GmbH & Co. KG
    Inventors: Armin Leder, Hans Rosemann
  • Patent number: 7395581
    Abstract: In an apparatus at a spinning room machine, especially a carding machine, cleaner or the like, for drawing a clothing onto a roller using a roller drive unit, which apparatus comprises a drive motor arranged to be in drive connection with the roller drive unit or with at least one roller of the machine, the drive motor co-operates with a rotary speed adjustment device. In order to allow, by simple means, automatic matching of the actual value of the speed of rotation to a prespecified value of the speed of rotation, the drive motor co-operates with a closed-loop rotary speed control device which is incorporated into the control and regulation device of the spinning room machine.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: July 8, 2008
    Assignee: Trützschler GmbH & Co. KG
    Inventors: Fritz Hösel, Armin Leder
  • Patent number: 7360735
    Abstract: The present invention relates to a device for winding a card clothing onto a roll with a roll drive unit and a braking device acting on the card clothing for generating a winding pretension in a region of the card clothing between roll and braking device. To be able to record the winding operation in an improved way, a force measuring device is provided which is configured to measure the force acting on a mounting point of the braking device, essentially in a direction longitudinal to a winding direction of the card clothing.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: April 22, 2008
    Assignee: Hollingsworth GmbH
    Inventors: Hans-Ulrich Schneider, Axel Bauersachs
  • Patent number: 7325278
    Abstract: The present invention relates to an all-steel card clothing for rollers and/or cylinders of carding machines. Carding machines comprise rollers which are configured to actively take over raw fiber materials from rollers arranged upstream in work direction. Therefore, such card clothings have a relatively large front angle. The problem is that the stability of the card clothings suffers. According to the invention, the teeth have a head angle of >85° in order to solve this problem. The length of the head surface extending at said angle from the tooth tip to the tooth back corresponds to at least ¼ of the length of the tooth pitch. This achieves a considerably more stable card clothing while maintaining the high carding quality.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: February 5, 2008
    Assignee: Trützschler Card Clothing GmbH
    Inventor: Bernhard Bocht
  • Patent number: 7318253
    Abstract: In an arrangement at a carding machine for cotton, synthetic fibres and the like, at least one card top bar has a carrier and card top clothing. The card top clothing is fastened to the card top bar carrier and is positioned opposite to the clothing of a roller, e.g. the cylinder, and at least the regions of the clothing that face the card top bar carrier are made of a ferrous product, especially steel. In order to enable there to be obtained in simple manner a dimensionally stable clothed card top bar and simpler and more rapid reclothing (clothing replacement), at least one magnetic element is present between the card top bar carrier and the regions of the clothing member that face the card top bar carrier.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: January 15, 2008
    Assignee: Truetzschler GmbH & Co. KG
    Inventors: Nicole Elsasser, Thomas Landmesser
  • Publication number: 20080000053
    Abstract: In the case of a saw-tooth wire for producing a saw-tooth all-steel clothing for a roller or a carding element of a spinning room machine, having an elongate base region (foot) and an adjoining toothed region (blade) in which teeth are formed by cutting, the teeth comprising a tooth front, a tooth back and two side flanks, between the tooth back and the tooth front of two successively arranged teeth there is a gullet. To produce a saw-tooth wire, which comprises in particular teeth of exact and uniform tooth geometry, the teeth of the saw-tooth wire are made by treating with a laser device.
    Type: Application
    Filed: March 20, 2007
    Publication date: January 3, 2008
    Applicant: TRUTZSCHLER GmbH & Co. KG
    Inventor: Hans Rosemann
  • Publication number: 20070186386
    Abstract: In an apparatus on a carding machine for cotton, synthetic fibres and the like, in which at least one flat bar with a flat clothing is present, in which a clothing strip having a flat clothing, preferably wire hooks, arranged in a strip-form support element, is secured to a support body of the flat bar and lies opposite the clothing of a roller, e.g. the cylinder, the spacing between a surface defined by the tips of the flat clothing and the tip circle of the cylinder clothing decreases in the direction of rotation of the cylinder. In order to be able to alter and adapt the angle (offset) in a simple manner in terms of mechanical engineering, the top face, of the clothing strip and the tip surface of the flat clothing are not aligned parallel with one another.
    Type: Application
    Filed: February 14, 2007
    Publication date: August 16, 2007
    Applicant: Trutzschler GmbH & Co. KG
    Inventor: Thomas Landmesser
  • Patent number: 7055222
    Abstract: The invention relates to fastening means (in particular to so called clothing clips) for the fastening of clothing strips on flat rods, made of light metal or light metal alloys. Thereby the fastening means are laid-out in such a manner that, when the flat rods assume their operating temperature, these are not deformed.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: June 6, 2006
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Jürg Bischofberger, Hans-Rudolf Lörtscher, Peter Gujer, Christian Sauter
  • Patent number: 6996878
    Abstract: The present invention relates to a device, such as a carding machine, for processing fibers, said device comprising a cylinder, which is provided with a lining, and at least two carding segments which are arranged one after the other in the direction of rotation at least over an area of the circumference of said cylinder, each of said carding segments being provided with a toothed lining. The present invention aims at improving the efficiency of such a device especially in terms of fiber parallelization.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: February 14, 2006
    Assignee: Hollingsworth GmbH
    Inventors: Hermann Maidel, Peter Artzt, Volker Jehle, Bernhard Bocht
  • Patent number: 6978594
    Abstract: A sawtooth wire to be laid in a groove of a shredding-element-carrier of a disintegrating roll of an open-end spinning apparatus is brought into a shape, which essentially represents that shape, which the sawtooth wire is to assume on the shredding-element carrier. The sawtooth wire is preshaped on a dummy body, the circumference of which predominately conforms to that of the shredding-element carrier, or the sawtooth wire is directly preshaped on the shredding-element carrier of the disintegrating roll. The preshaped sawtooth wire is subsequently hardened, preferably inductively with the aid of a high frequency alternating current with a frequency of more than 1000 kHz. In this manner, a disintegrating roll is made, the abrasion resistant shredding element of which, after the preshaping, i.e., after is securement on the shredding-element carrier, is a hardened shredding element.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: December 27, 2005
    Assignee: Rieter Ingolstadt
    Inventors: Edmund Schuller, Klaus Schoberth, Josef Schermer, Heinrich Mayer, Herbert Kreis
  • Patent number: 6920671
    Abstract: A sawtooth wire for producing all-steel sawtooth clothing for the doffer and/or doffing cylinder of a carding machine with a plurality of teeth successively arranged in the longitudinal direction of the wire. Each tooth has a tooth breast beginning at the tooth bottom and extending in the direction toward the tooth tip and a tooth back that is connected with the tooth breast by two tooth flanks extending parallel to the longitudinal direction of the wire and that extends from the tooth tip in the direction of the following tooth bottom. At least one tooth flank has at least one profile segment that is located between the tooth tip and the tooth bottom and is provided with profiling.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: July 26, 2005
    Assignee: Graf + Cie AG
    Inventor: Ralph A. Graf
  • Patent number: 6874203
    Abstract: The present invention relates to a sawtooth wire for a cylinder lining, in particular for a doffer cylinder for a carding machine. In order to improve the take-over and delivery properties of the doffer cylinder to a subsequent stuffer cylinder, the sawtooth wire is implemented such that the back angle of the tooth angle of the individual teeth increases from the base to the tip of the respective tooth. Owing to this tooth design, it can be achieved that the tooth back is steep in the area of the tip of the tooth, whereby the delivery properties of the doffer cylinder to the subsequent stuffer cylinder will be improved, while the breast angle is large; this will facilitate the take-over of fibres from the main cylinder that rotates at a higher speed.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: April 5, 2005
    Assignee: Trützschler Card Clothing GmbH
    Inventor: Axel Bauersachs
  • Patent number: 6842947
    Abstract: 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: Grant
    Filed: April 9, 2003
    Date of Patent: January 18, 2005
    Assignee: Maschinenfabrik Rieter AG
    Inventor: Peter Gujer
  • Patent number: D858634
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: September 3, 2019
    Assignee: MOVING WALLS LTD
    Inventor: Jörg Boner