Monitor And Record Patents (Class 57/265)
  • Patent number: 8220242
    Abstract: According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, stub distance, mass increase (?M) of a stub, slub diameter increase, stub diameter, slub length (LE) and/or slub total mass. At least one result of the evaluation is outputted in the form of a graphic representation, for example as a scatter diagram. Such a graphic representation provides a clear representation of the measurement results. The occurring data is reduced and may be divided up into different categories.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: July 17, 2012
    Assignee: Uster Technologies, AG
    Inventors: Christine Meixner, Gabriela Peters, Sandra Edalat-Pour
  • Patent number: 8220241
    Abstract: According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase (?M) of a slub, slub diameter increase, slub diameter, slub length (LE) and/or slub total mass. At least one result of the evaluation is outputted in the form of a graphic representation, for example as a scatter diagram. Such a graphic representation provides a clear representation of the measurement results. The occurring data is reduced and may be divided up into different categories.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: July 17, 2012
    Assignee: Uster Technologies, AG
    Inventors: Christine Meixner, Gabriela Peters, Sandra Edalat-Pour
  • Patent number: 8033090
    Abstract: Method for the bidirectional transmission of data between one or more textile machines (1) producing cross-wound bobbins and/or one or more same-level and/or higher level control systems with a device (2) for transmitting data to a transport medium, which is used for the transporting of data located on the transport medium, the transport medium being in operative connection with the textile machine (1) producing cross-wound bobbins to transmit data via the device (2). According to the invention, a memory, a hard disc, a magnetic tape, a writable compact disc (CD), a writable digital versatile disc (DVD), a magneto-optical disc (MO disc), a minidisc (MD) or a digital memory card provided in a mobile telephone or a palm-top computer (personal digital assistant) are used as the transporting medium and the device (2) is integrated in an exchangeable manner in the textile machine (1).
    Type: Grant
    Filed: September 30, 2006
    Date of Patent: October 11, 2011
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventor: Olav Birlem
  • Patent number: 8001759
    Abstract: An improved method for operating a textile machine having plural workstations comprising exchangeable components, each having a readable and writable transponder arranged on or integrated in the exchangeable components. During the lifecycle of the exchangeable components at least the operating data which influence the wearing of the exchangeable components are automatically stored on the respective transponder. Textile machines for carrying out the method are characterised by arranging in the region of each workstation at least one transceiver for writing and reading the transponders attached to or integrated in the exchangeable components.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: August 23, 2011
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventors: Heinz-Georg Wassenhoven, Hans Grecksch
  • Patent number: 7836674
    Abstract: According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase (?M) of a slub, slub diameter increase, slub diameter, slub length (LE) and/or slub total mass. At least one result of the evaluation is outputted in the form of a graphic representation, for example as a scatter diagram. Such a graphic representation provides a clear representation of the measurement results. The occurring data is reduced and may be divided up into different categories.
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: November 23, 2010
    Assignee: Uster Technologies
    Inventors: Christine Meixner, Gabriela Peters, Sandra Edalat-Pour
  • Patent number: 7832190
    Abstract: According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase of a slub, slub diameter increase, slub diameter, slub length and/or slub total mass. On evaluation, a measurement curve is produced from the values of the scanning, and an area (A(x)) between the measurement curve and a previously determined base yarn mass is computed. A permanent increase in the course of the area (A(x)) is used as a criterion for the presence of a slub. Slubs may be differentiated from yarn imperfections in a reliable manner by way of the area (A(x)).
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: November 16, 2010
    Assignee: Uster Technologies AG
    Inventors: Christine Meixner, Gabriela Peters, Sandra Edalat-Pour
  • Publication number: 20080288101
    Abstract: According to the method for characterizing fancy yarn, at least one characteristic of the fancy yarn is scanned along the longitudinal direction of the fancy yarn. Values of the scanning are evaluated and the results of the evaluation are outputted. The results of the evaluation are the fancy yarn parameters such as base yarn mass, base yarn diameter, slub distance, mass increase of a slub, slub diameter increase, slub diameter, slub length and/or slub total mass. On evaluation, a measurement curve is produced from the values of the scanning, and an area (A(x)) between the measurement curve and a previously determined base yarn mass is computed. A permanent increase in the course of the area (A(x)) is used as a criterion for the presence of a slub. Slubs may be differentiated from yarn imperfections in a reliable manner by way of the area (A(x)).
    Type: Application
    Filed: November 15, 2006
    Publication date: November 20, 2008
    Applicant: USTER TECHNOLOGIES AG
    Inventors: Christine Meixner, Gabriela Peters, Sandra Edalat-Pour
  • Patent number: 7386975
    Abstract: A method for determining the effects of a fancy yarn by measuring the yarn diameter. The yarn sections between the effect areas are referred to as webs. The effect area is determined in that the beginning of the effect is defined by meeting a first criterion and the end of the effect is defined by meeting a second criterion. A specifiable number of the largest diameters is determined between the beginning and end of the effect, an average is formed from the diameters determined, which is specified as the diameter of the effect, and the effect length is determined from the beginning and end of the effect.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: June 17, 2008
    Assignee: Oerlikon Textile GmbH & Co. KG
    Inventor: Iris Biermann
  • Patent number: 7137238
    Abstract: A yarn quality assurance method and a yarn processing machine set up for implementing the method according to the invention is proposed comprising at least one feeding spool receiver 24, 30 set up to receive respectively at least one feeding spool 20, 29 from which yarns can be taken off, and a multifilament yarn manufacturing unit 5 to which yarns are supplied from the feeding spools 20, 29 via thread runs with respectively one thread tension. According to the invention, a thread tension regulating module 25 with a thread tension sensor is arranged in at least one controlled thread run 1 between the relevant feeding spool receiver 24 and the multifilament yarn manufacturing unit 5, wherein the thread tension regulating module 25 is set up to derive a control value from a thread tension measured by the thread tension sensor and to keep the thread tension constant in a predetermined thread tension range.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: November 21, 2006
    Assignee: Schärer Schweiter Mettler AG
    Inventors: Davide Maccabruni, Robin Gutbrod
  • Patent number: 6907309
    Abstract: The invention relates to a textile machine with at least one first service unit capable of traveling along a guide rail alongside a plurality of processing stations of the textile machine, and with a control system for the control of the travel movement of the service unit. The control system can determine data on travel path delimitations, predetermined return points and/or obstacles available, and the control system controls the travel movement as a function of the data of the travel path delimitations, the predetermined return points and/or the obstacles.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: June 14, 2005
    Assignee: Rieter Ingolstadt Spinnermaschau AG
    Inventor: Martin Zipperer
  • Patent number: 6877305
    Abstract: The invention relates to a method and to a device for detecting a thickening in a running thread. The thread runs through a forked guide element which is moved away from an initial position by a thickening in the thread, thereby triggering a signal. While the guide element is moved away, it allows the thread having the thickening to continue running and is then returned to its initial position.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: April 12, 2005
    Assignee: Zimmer Aktiengesellschaft
    Inventors: Andreas Weichel, Stefan Seibel
  • Patent number: 6817170
    Abstract: A method of and apparatus for monitoring the processing of a multifilament yarn to indicate a number of protrusions in the yarn is provided. In this method, a multifilament yarn is passed through a light beam directed from a light emitting device to a light receiving device, and the amount of light received by the light receiving device is measured at predetermined time intervals. From the measured amounts of light over a predetermined time period a measuring and computing device produces a frequency distribution, and a threshold level representative of an ideal yarn is calculated from the frequency distribution. The number of measurements that fall outside that threshold level is recorded and is indicative of the number of filament breaks and loops in the yarn.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: November 16, 2004
    Assignee: Fibrevision Limited
    Inventor: David Charles Eaton
  • Patent number: 6751938
    Abstract: The independent torsioning unit consists of two different units: the case frame and the programming and control unit. The case frame houses the spindle axis, the electrical motor, the drive belt, the yarn guide, the vertical deflection roller, the horizontal deflection pulley and the impulse reader. The programming and control unit consists of a processor, the programming keyboard and a frequency converter that supplies and controls the motor. The independent torsioning unit is used as an auxiliary feeding machine that enhances the performance of any type of main processing machine.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: June 22, 2004
    Inventor: Jordi Galan I Llongueras
  • Patent number: 6666012
    Abstract: During the pneumatic holding of a yarn spun from fibers, the intensity of the air stream holding the yarn is changed to adapt to the prevailing working conditions. Such a change in intensity of this air stream can take place here in adaptation to different work phases and/or to the character of the held yarn. In order to reduce the intensity of the air stream, a secondary air stream may be fed to it at a point which is not reached by the yarn held by the air stream, or the cross-section of a pneumatic device conveying the air stream is changed. The pneumatic device is associated with an air control device which influences the intensity of the air stream and is connected to a control device which can be adjusted or programmed to take various working conditions into account. By means of the air control device an opening can be controlled through which the line can be connected to the atmosphere surrounding it.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: December 23, 2003
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Harald Widner, Sebastian Brandl
  • Publication number: 20030097830
    Abstract: The device for measuring the mass and/or the moisture of a material running through a spinning preparation machine is distinguished in that it has a microwave resonator (15, 18) and associated adapted measurement electronics. The method for measuring the mass and/or the moisture of a material running through a spinning preparation machine is distinguished in that the measurement is carried out with the aid of microwaves.
    Type: Application
    Filed: November 26, 2002
    Publication date: May 29, 2003
    Applicant: TEWS Elektronik
    Inventors: Rainer Herrmann, Manfred Tews, Udo Schlemm
  • Patent number: 6536643
    Abstract: A yarn breakage position detecting device and method of detecting a yarn breakage position involves a running yarn tension detector arranged at a reference position and that outputs a tension signal by which occurrence of yarn breakage is detected, and passage of the end of a broken yarn through the reference position is then calculated based on the time period from occurrence of yarn breakage to passage of the broken yarn end through the reference position. The yarn breakage time is stored as a time at which the tension signal becomes a peak value and/or a time at which the tension signal begins to decrease below a steady state tension value. The time when the yarn passes through the reference position is stored as a time at which the tension signal becomes lower than a lower limit value and/or a time at which natural oscillation begins.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: March 25, 2003
    Assignees: Teijin Limited, Teijin Seiki Textile Machinery Co., Ltd.
    Inventors: Hiroaki Kusuzono, Bunji Hamasu, Mitsumasa Sasaki, Shunzo Naito
  • Publication number: 20030037531
    Abstract: A method of and apparatus for monitoring the processing of a multifilament yarn to indicate a number of protrusions in the yarn is provided. In this method, a multifilament yarn is passed through a light beam directed from a light emitting device to a light receiving device, and the amount of light received by the light receiving device is measured at predetermined time intervals. From the measured amounts of light over a predetermined time period a measuring and computing device produces a frequency distribution, and a threshold level representative of an ideal yarn is calculated from the frequency distribution. The number of measurements that fall outside that threshold level is recorded and is indicative of the number of filament breaks and loops in the yarn.
    Type: Application
    Filed: August 21, 2002
    Publication date: February 27, 2003
    Applicant: Fibrevision Limited
    Inventor: David Charles Eaton
  • Patent number: 6352214
    Abstract: In a method for identifying the spinning position of cops, each cop is provided with an individual marker. The marker is read at the rewinding machine for determining the corresponding spinning position. The marker can e.g. consist of a bar code applied to an end of the cop's tube. With this system it becomes easy to attribute yarn parameters determined at the rewinding machine to individual spinning positions.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: March 5, 2002
    Assignee: Gebruder Loepfe AG
    Inventors: Urs Wild, Christian Hunziker, Heinrich Scherer, Zdenek Mazura
  • Patent number: 6349530
    Abstract: In the case of ring spinning with condensing devices there is a risk that the yarns of the individual cops have a varying degree of hairiness. This can result in faults in the end product, for example a woven fabric. In order to avoid such faults, the ring spinning machine is connected to a monitoring station, in which the yarns are automatically monitored for hairiness; the cops, based on the monitoring results, are then automatically sorted.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: February 26, 2002
    Assignees: Hans Stahlecker
    Inventor: Fritz Stahlecker
  • Patent number: 6339921
    Abstract: A piecing device with an evaluation arrangement for determining parameters of an automatic piecing process at a spinning station (1) of an open-end spinning frame, wherein a control device is provided which, initially in a test phase, controls the creation of at least one test piecing without a supplementary delivery of additional fiber and the subsequent removal of the created test piecing. The evaluation device is designed for determining the length of a thinner extent of the test piecing downstream of the test piecing as viewed in the direction of yarn travel, and for the determination from the detected length of the thinner extent an amount of supplementary delivery of additional fiber required for compensating the thinner extent. A reduction of the draft which is effective during the test phase assures an interference-free checking of the test piecing. The optimization phase for piecings is shortened and leads to a more accurate result when determining the supplementary delivery of additional fiber.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: January 22, 2002
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Manfred Lassmann, Heribert Mertens
  • Patent number: 6303938
    Abstract: A method for detecting untextured or defectively textured yarn segments in textured filament yarns during the texturing process, in which the textured yarn is continuously measured by the measurement, conditioning and evaluation of high-frequency measurement signals as evidence of untextured or defectively textured yarn segments.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: October 16, 2001
    Assignees: Deutsche Institute fur Textil-und Faserforschung, Stiftung des Offentlichen Rechts
    Inventors: Helmut Weinsdorfer, Beiheng Cui
  • Patent number: 6279307
    Abstract: The present invention introduces a yarn y that is unwound from a supply bobbin 1 into a control member 3 for controlling the propagation of twisting toward a supply bobbin, then introduces the yarn into a friction-disk-type false twister 4 to suppress fluff, and finally controls the yarn feeding speed in the friction-disk-type false twister in order to control the yarn tension. The present invention can reduce the amount of fluff on a yarn that is unwound from a supply bobbin and wound around a winding package and control the yarn tension. Therefore, the present invention eliminates the needs for a special device for controlling the tension.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: August 28, 2001
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Fumiaki Nakaji, Tomonari Ikemoto
  • Patent number: 6276122
    Abstract: The invention concerns an apparatus for the guidance of a spun thread in a spinning station, wherein, after the thread has been produced, it runs in its travel direction through a withdrawal device, a measuring instrument, and a traversing apparatus. The invention makes possible a smooth and stable thread guidance between the withdrawal device and the traversing apparatus, so that both the run of the thread and the quality of wound filament of the thread can be monitored. Between the measuring instrument and the traverse apparatus, at least one deflection roll is provided.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: August 21, 2001
    Assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
    Inventors: Thorsten Büchner, Bernd Bahlmann, Edmund Schuller
  • Patent number: 6244030
    Abstract: The invention relates to a process and device for monitoring the quality of yarns. In order to differentiate extraneous materials in a yarn section front the yarn itself and from other extraneous materials more effectively, a signal (10) derived from the yarn (8) must be classified in a classification field (16). On the basis of that classification, the extraneous materials contained in the yarn and their types can be determined.
    Type: Grant
    Filed: February 24, 1999
    Date of Patent: June 12, 2001
    Assignee: Zellweger Luwa AG
    Inventors: Werner Arb, Christoph Färber
  • Patent number: 6216432
    Abstract: The method which is applicable to the inspection of bobbins of yarn of any size, color and material, is based on the acquisition of images of the surface of the bobbin and on their processing by a computer program in order to evaluate defects, and comprises various steps of exploring the bobbin (1) taking a plurality of images of various areas of said bobbin, each step occurring under specific conditions of lighting and relative position of particular image sensors (3, 4) in order to identify specific defects, displacing either the bobbin (1) or the image acquisition device (3, 4), or bot to explore, sector by sector, the whole surface of interest, each of the focused images, related to a particular defect being processed individually by the evaluation program.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: April 17, 2001
    Assignee: Cognivision Research, S.L.
    Inventors: Albert Sanfeliu Cortes, Antoni Llorens Castello
  • Patent number: 6212868
    Abstract: The spinning rotors of open-end spinning aggregates are supported on supporting discs. For the purposes of non-contact revolution counting, a front side of a supporting disc is provided with at least one permanent magnet. A signal receiver of a maintenance device selectively arrangeable at the spinning aggregates is arranged at the permanent magnet. The distance between the permanent magnet and the signal receiver is bridged by a ferromagnetic information transmitter, which is preferably arranged on a swivelling housing section of the spinning aggregate.
    Type: Grant
    Filed: November 17, 1999
    Date of Patent: April 10, 2001
    Inventor: Hans Braxmeier
  • Patent number: 6134871
    Abstract: To enable malfunctions in the spindle drive motors of an individual-spindle-drive type textile machine in which each spindle has a rotating member (a false twisting member 5) for twisting yarn and a motor 15 for rotating the rotating member to be easily determined, a driver 30 for controlling the rotational speed of the motor 15 for each spindle and an alarm means 44 for notifying operators of a malfunction in the driver 30 are provided for each spindle.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: October 24, 2000
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Yuriko Kishimura
  • Patent number: 6112508
    Abstract: Apparatus for monitoring yarns on spinning machines includes a sensor which is disposed such that it can travel along a track in front of the production stations. In order to permit each spinning station of a spinning machine to be monitored to an extent such that mavericks and other forms of unevenness in the yarn can be located, the sensor (2) is formed and disposed to detect the diameter of the yarn.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: September 5, 2000
    Assignee: Zellweger Luwa AG
    Inventor: Ernst Felix
  • Patent number: 5966211
    Abstract: An optoelectronic sensor device (S) for detecting a yarn passing through a scanning zone (3) comprises at least one light source (L, L'), at least one photoelectric receiver (R1, R2) which is responsive to light variations and which is connected to an evaluation circuit (C), and a slit aperture (A1, A1) arranged between the yarn and the receiver. In a weft-yarn measuring and storing device (F), the sensor device (S) forms a withdrawal sensor for the yarn which is withdrawn overhead from the storage body (B). According to the invention at least two receivers that are closely adjacent to each other are oriented towards the scanning zone, with the receiving surfaces (4, 5) of the receivers being each covered by an upstream slit aperture (A1, A2), except for a limited area. The slit apertures (A1, A2) are arranged relative to one another at an acute angle of not more than 90.degree..
    Type: Grant
    Filed: April 13, 1998
    Date of Patent: October 12, 1999
    Assignees: IRO AB, Picanol N.V.
    Inventor: Henrik Lilja
  • Patent number: 5844494
    Abstract: Method of diagnosing failures in a production process of a synthetic filament yarn, in which a first process parameter dependent on the process control is continuously measured and evaluated, and in which as a function of the evaluation or course derived therefrom an indication signal is generated, there being continuously measured and evaluated at least a second reference parameter dependent on the process control, and the indication signal being generated, when an error-typical behavior is found in the first and in at least one additional parameter.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: December 1, 1998
    Assignee: Barmag AG
    Inventors: Jorg Spahlinger, Manfred Mayer, Ulrich Enders, Bernd Neumann
  • Patent number: 5832709
    Abstract: A method includes dividing a yarn into various sections with reference to the pieced yarn section, with each section being characteristic of the piecing process. A yarn profile in each section is measured and evaluated against criteria specific to each section, whereby a yarn defect and its position on the yarn are determined and from which the cause for the defect is determined. The pieced yarn section is also divided into three subsections and each subsection is measured and evaluated against certain subsection criteria for the detection of fluff, trash accumulation and fiber sloughing.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: November 10, 1998
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Manfred Lassmann, Heribert Mertens
  • Patent number: 5592849
    Abstract: A yarn unevenness information analyzing apparatus which can perform an analysis of periodic yarn unevennesses without being restricted by another analysis of non-periodic yarn unevennesses. Signals from a large number of yarn evenness detectors are inputted to a CPU for yarn unevenness analysis by way of a first switch for changing over the signals in a short period to successively output the signals and a second switch for changing over the signals in a long period to successively output the signals.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: January 14, 1997
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventors: Kazuhiko Nakade, Shujiro Suzuki, Masakatsu Hasegawa
  • Patent number: 5555712
    Abstract: A sliver quality judging method in a textile machine which method can judge whether a spindle whose operating condition is bad is defective or not. Statistics are taken with respect to yarn quality information, including the breakage of yarn, uniformity, etc., for each spindle, then a spindle inferior in such yarn quality is picked out, and from the form of changes with time in the yarn quality information of that spindle there is made judgment whether the spindle is defective or sliver is of poor quality.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: September 17, 1996
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Kazuhiko Nakade
  • Patent number: 5537811
    Abstract: A method and apparatus for simultaneously cleansing and grading yarn produced by a spinning or spooling machine with a plurality of spindles or primary spools. One spindle processor is associated with each spindle. The spindle-processor grades in a grading plane containing a cleansing envelope. All yarn defects located outside the cleansing envelope in the grading plane are considered unacceptable defects and are excised from the yarn.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: July 23, 1996
    Assignee: Roospark Ag
    Inventors: Roger Pidoux, Peter Haldemann
  • Patent number: 5440870
    Abstract: A method and apparatus for monitoring the quality of the yarn processed on a false twist texturing machine is disclosed, and which includes sensing the tension of the advancing yarn at a location immediately downstream of the false twist unit, and determining the coefficient of variation of the sensed tension. An error signal is generated whenever the coefficient of variation exceeds a predetermined upper limit and whenever the coefficient of variation drops below a predetermined lower limit. Also, an alarm signal is generated whenever the error signal exceeds the predetermined upper limit for a predetermined time, and whenever the error signal drops below the predetermined lower limit for a predetermined time, and the alarm signals are counted so as to provide an indication of the quality of the yarn.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: August 15, 1995
    Assignee: Barmag AG
    Inventor: Bernd Neumann
  • Patent number: 5423169
    Abstract: A process to test the monitoring function of an electronic sensor at the work station of a textile machine in order to avoid wrong decisions by the control unit of the work station. The sensors are tested during operation. For a brief time span a second sensor of the same type is located at the same time within the operating range of the sensor of the working station so that its function overlaps in time with that of the sensor of the work station. During the time of overlap the logical levels of the two sensors are detected, compared with each other and classified as result of the test.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: June 13, 1995
    Assignee: Rieter Ingolstadt Spinneremaschinenbau AG
    Inventor: Lochbronner Hubert
  • Patent number: 5347449
    Abstract: A method and system is provided for eliminating malfunctions in textile machines, in particular spinning machines. Malfunction signals are transmitted from the machine to a process control computer that controls the elimination of the malfunctions. The process control computer activates an alarm call transmitter that calls a desired specialist for removing the malfunction in a certain machine.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: September 13, 1994
    Assignee: Maschinenfabrik Rieter AG
    Inventors: Urs Meyer, Roland Beringer
  • Patent number: 5287692
    Abstract: In a transport medium for yarn or the like which comprises a medium for transporting directly or indirectly a yarn or the like, such as a tray for fitting upright a bobbin thereon, and media capable of writing therein and reading therefrom of various information on the yarn, the media attached to the transporting medium.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: February 22, 1994
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Junichi Matsubayashi
  • Patent number: 5272864
    Abstract: A yarn exchange and doffing device in a two-for-one twister without lowering of efficiency is proposed. A yarn breakage spindle passing mechanism is provided on the device body which travels along spindles of a two-for-one twister and the mechanism stores a yarn breakage spindle judged to be unnecessary for stoppage.
    Type: Grant
    Filed: July 29, 1992
    Date of Patent: December 28, 1993
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Tadashi Suzuki
  • Patent number: 5182900
    Abstract: A method for checking operation of a pneumatic splicer for joining two yarn ends at a textile machine includes feeding splicing gas for a predetermined period of time to a splicer to be checked for splicing a particular yarn batch without having yarn ends laid in place in a splicing conduit of a splicer head of the splicer to be checked. At least one status variable of outflowing splicing gas is measured during the predetermined period of time at a given opening in the splicer head. A reference value is measured at another splicer producing replicable spliced joints meeting a previously defined quality and being identical to the splicer being checked, by feeding splicing gas to the other splicer without yarn ends being laid in place in the splicing conduit and measuring the reference value at a given opening in the splicer head. The at least one status variable is compared with the measured reference value and deviations are ascertained.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: February 2, 1993
    Assignee: W. Schlafhorst AG & Co.
    Inventors: Dieter Horak, Hans-Heinz Schafer
  • Patent number: 5181374
    Abstract: For the setting of yarn clearers for fineness control the number of permissible false alarms for a given yarn length, i.e. the permissible alarm frequency, is fixed. During the clearing process measured values of the fineness are recorded continuously, and their distribution is determined. From this distribution of the measured values and from the predetermined permissible alarm frequency, response limits are fixed independently on the basis of statistical regularities. Thus, the yarn clearers can be set automatically in an optimum manner on the basis of actual production circumstances, and mistakes between yarns differing only slightly in their fineness cannot occur.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: January 26, 1993
    Assignee: Zellweger Uster AG
    Inventor: Kurt Aeppli
  • Patent number: 5119308
    Abstract: A control system for a spinning machine wherein a nonsteady yarn irregularity is measured on the real time basis and results of the measurement is displayed in a concentrated manner or directly displayed on a package. A computing device for computing a standard deviation from a yarn irregularity signal is provided so that a uniformity of a yarn irregularity is evaluated in addition to a thickness and a length of the yarn irregularity.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: June 2, 1992
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Yoshihiko Samoto
  • Patent number: 4918914
    Abstract: A method of monitoring yarn quality in a yarn texturing process comprises measuring the velocity of the travelling yarn at two locations and comparing the measured velocities. At a first location the yarn tension is sufficient to draw out the crimp and at a second location the tension is lower such that the crimp is developed. Apparatus for performing this method comprises a measuring device to measure the peripheral speed of a driving roller which is part of a nip-feed device serving to feed a crimped yarn at the first location from a false twist device to a second heater of a false twist texturing machine. At the second location between the second heater and a third feed device of the machine is a second velocity measuring device which comprises an inlet tube, an outlet tube and two discs of brass which form spaced measuring stations spaced by an insulating body.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: April 24, 1990
    Assignee: Rieter Scragg Limited
    Inventor: David C. Eaton
  • Patent number: 4909027
    Abstract: Successive groups of thread paths in multi-spindle textile apparatus are equipped with individual monitoring systems. In each system, a joint monitoring element (S,E,L) is provided which has a bundle of rays (L). The latter is moved transversely to the thread running direction, passes thereby over the production points (1-8) arranged in rows and is interrupted or attenuated at each production point by the respective thread. The shading of the bundle of rays caused thereby is assessed as criterion for the presence of the thread concerned.The process makes possible an on-line production and quality monitoring on multi-spindle textile machines, for example ring spinning frames, with a reasonable expenditure.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: March 20, 1990
    Assignee: Zellweger Uster AG
    Inventor: Ernst Felix
  • Patent number: 4891974
    Abstract: An apparatus and method for determining characteristics of staple fiber yarn by measuring the change in the yarn diameter after twisting or untwisting of the yarn. The yarn thickness of a length of yarn is measured during a first measuring process and subsequently, by a second measuring process after the twist is released. The two series of values of yarn thickness or diameter can then be compared with one another to determine certain characteristics of the sampled yarn.
    Type: Grant
    Filed: September 23, 1988
    Date of Patent: January 9, 1990
    Assignee: W. Schlafhorst & Co.
    Inventor: Heinz-Georg Wassenhoven
  • Patent number: 4888944
    Abstract: A common monitoring system with a light beam is provided for a group of two or more production units arranged in a row. The beam passes through the thread balloon formed by the moving thread of each of these production units and is intermittently interrupted or attenuated by the moving thread in each balloon. The resulting shading is converted into an electric signal in a receiver of the monitoring system.The threads of the individual production units can be identified by evaluating the relationships of amplitude, time and phase between the individual shading impulses.The process enables on-line production and quality control to be carried out on multi-spindle textile machines such as ring spinning machines at an acceptable cost.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: December 26, 1989
    Assignee: Zellweger Uster AG
    Inventor: Ernst Felix
  • Patent number: 4848075
    Abstract: A method and apparatus for automatically adjusting the tensile force ratio between axially moving outer and inner threads of cabled yarn during manufacture of such yarn in a cabling machine in which the actual tensile force ratio is measured in the region of the thread guide eye of the cabling machine, such measured tensile force ratio is compared with a desired tensile force ratio and the thread guide eye of the cabling machine is axially adjusted to provide a desired height of the thread balloon in the yarn cabling machine to provide a desired outer and inner thread tensile force ratio. Suitable apparatus, preferably in the form of a hand held instrument is provided for automatically performing such adjustment of the tensile force ratio.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: July 18, 1989
    Assignee: Palitex Project Company GmbH
    Inventor: Johannes Frentzel-Beyme
  • Patent number: 4843808
    Abstract: Bobbins spun in a ring spinning machine are conveyed sequentially to a measuring, counting and sorting device located between the ring spinning machine and an automatic winder that winds yarn from the bobbins. The measuring, counting and sorting device senses the presence of a bobbin, counts the bobbins being sensed, senses yarn and bobbin characteristics and compares the characteristics with predetermined standards. The device separates bobbins whose characteristics differ from the standard. Data regarding the operation of the spinning machine and operation of the winding machine are combined with the data obtained by the measuring, counting and sorting device and statistically evaluated for display or for controlling the production of the spinning machine and winding machine or for controlling conveyance of the packages from the winding machine.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: July 4, 1989
    Assignee: W. Schlafhorst & Co.
    Inventors: Joachim Ruge, Edmund Wey, Gregor Gabald
  • Patent number: 4838019
    Abstract: A spinning frame control system in which a spinning frame is connected with a winder by means of a bobbin conveyance path and an empty bobbin return path. Identification marks in the form of concentric circles are fixed onto conveyance mediums for conveying spinning bobbins each independently, and readers for the identification mark are disposed in the bobbin feed position from the spinning frame to the conveyance mediums and also in the return path of bobbins discharged from the winder.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: June 13, 1989
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Yutaka Ueda
  • Patent number: 4839815
    Abstract: The invention provides a method of monitoring yarn package offtake performance comprising withdrawing yarn from a package, for a predetermined period of time continuously measuring the tension of said yarn at predetermined time intervals throughout said withdrawal and updating the obtained tension distribution data with each tension measurement. The method also includes noting the maximum and minimum tensions measured and the limiting values of a range of tensions outside which range only a predetermined proportion of said measured tensions fall, and determining an offtake performance factor from said maximum, minimum and limiting values of tensions.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: June 13, 1989
    Assignee: Rieter Scragg Limited
    Inventors: David C. Eaton, Christopher J. Lawrence