Measuring Or Storing Patents (Class 139/452)
  • Patent number: 10662557
    Abstract: A textile machine receives a plurality of yarns from respective feeders, each provided with a control unit that calculates, for each garment produced, the amount of yarn consumed (YCmeas) and compares it with a reference consumption value (YCref). If the difference exceeds a preset limit value (% max) that indicates an anomaly, then an alarm is generated. Periodically, the control unit calculates an average consumption value (YCmed) on the basis of a preset number (Nmed) of already-finished garments, and compares it with the reference consumption value (YCref). If the difference exceeds a preset threshold value (% maxmed), then the reference consumption value (Yref) is set to the average consumption value (Ymed).
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: May 26, 2020
    Assignee: L.G.L. ELECTRONICS S.P.A.
    Inventors: Pietro Zenoni, Luca Gotti
  • Patent number: 10280032
    Abstract: Accumulation-type thread feeder including: a body, which bears a rotary drum on which turns of thread from a spool are wound; a tension sensor for detecting value of tension of exiting thread and a detector for detecting thread quantity accumulated on the drum; a light-reflecting element on the drum or functionally associated therewith, such light generated by light a generator borne by a support arranged alongside the drum, the support associated with a detector to detect light reflected by the reflecting element, the reflected light varying as a function of the quantity of thread wound on the rotary drum, the detection allowing detection of such thread quantity. The detector is a light-sensitive member directly receiving the light reflected by the reflecting element along the entire surface of the drum, the member allowing determination of thread density on the drum.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: May 7, 2019
    Assignee: BTSR INTERNATIONAL S.P.A.
    Inventor: Tiziano Barea
  • Patent number: 10246291
    Abstract: A yarn feeder may comprise a driver and a winding wheel. The driver has a front cover, a rear cover, a stator disc and a rotor disc, and the front cover and the rear cover are configured to fit together to form a housing therebetween which accommodates the stator disc and the rotor disc therein. The stator disc has a first through hole, and a plurality of teeth are formed around the first through hole to enable a couple of coils to be wound thereon. The rotor disc has a connecting hole, and a plurality of magnetic members are formed around the connecting hole. A connecting base extended from a first end of the winding wheel is engaged with the connecting hole, and the driver is connected to a tension controller to detect the tension of yarn and further to control the rotational speed of the driver.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: April 2, 2019
    Assignee: Sunshine Kinetics Technology Co. Ltd.
    Inventor: Shen-Te Feng
  • Patent number: 10221507
    Abstract: A weft yarn measuring and storing device of a loom includes a drive roller, a support shaft, a support lever is turnably mounted to the support shaft, a feed roller that is rotatably mounted to the support lever and pressed to be contacted against the drive roller by a spring force so that the feed roller is rotated by rotation of the drive roller to pinch a weft yarn therebetween for feeding, and a storing drum that takes up and stores the fed weft yarn. The weft yarn measuring and storing device further includes a friction resistance imparting portion that imparts the support lever a friction resistance against turning of the support lever.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: March 5, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yasushi Yamauchi, Haruo Shimazaki, Natsuki Kakiuchi
  • Patent number: 9809413
    Abstract: A winding device for winding a strand like winding material is disclosed. The winding device includes a winding disk onto which the strand like winding material is wound, and a housing being arranged adjacently to the winding disk. The winding disk is prevented from moving, for example, from twisting, by at least one magnetic holding device. The magnetic holding device has a first magnetic arrangement, which is connected torque proof to the housing, and a second magnetic arrangement, which is connected torque proof to the winding disk, each magnetic arrangement having a north pole N and a south pole S. Between the first and second magnetic arrangements there is a gap. The first and second magnetic arrangements are magnetically coupled across the gap, wherein the strand shaped winding material is guided through the gap.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: November 7, 2017
    Assignee: Maschinenfabrik Niehoff GmbH & Co. KG
    Inventor: Hubert Reinisch
  • Patent number: 9656798
    Abstract: Capsule for preparing a predetermined quantity of beverage suitable for consumption using an extractable product, for instance roast and ground coffee, comprising a circumferential first wall, a second wall closing the circumferential first wall at a first end, a perforate and/or porous third wall closing the circumferential first wall at a second, open, end opposite the second wall arranged for draining the prepared beverage from the capsule, wherein the first, second and third wall enclose an inner space comprising the extractable product, wherein the extractable product in the inner space of the capsule has been, at least partly compacted. The invention further relates to a method for manufacturing such a capsule, a system comprising such a capsule for preparing a beverage and a method for preparing of a beverage.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: May 23, 2017
    Assignee: Koninklijke Douwe Egberts B.V.
    Inventors: Ralf Kamerbeek, Cornelis van Bergen, Angenita Dorothea van Loon-Post, Hendrik Cornelis Koeling
  • Patent number: 9598261
    Abstract: A method for supplying a thread to a textile machine without creating torsions thereof includes picking up the thread from a reel, winding it on a rotary drum driven by an electric motor thereof and supplying such thread to the textile machine, preferably at constant tension and/or quantity. The method provides for measuring the amount of thread leaving the rotary drum and the amount of thread wound thereon and intervening on the rotation of such drum so the amount of thread leaving the drum is equivalent to the amount loaded thereon to avoid the creation of torsion on the thread. A device for implementing such method is also disclosed.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: March 21, 2017
    Assignee: BTSR INTERNATIONAL S.P.A.
    Inventor: Tiziano Barea
  • Patent number: 9480282
    Abstract: A feed device for a linear airflow separator that eliminates the use of a winnower in the separation of tobacco products. The feed device includes an adjustable angle baffle deflector in combination with an air knife. The air-fed adjustable angle baffle deflector feeds with non-product contact and as a result does not lead to mechanical degradation of the treated material. The air knife is fed with air from a high pressure blower having a variable frequency drive. The feed device treats the product with air only, thereby eliminating mechanical contact with the product and resulting in higher separation yields and higher operating efficiency than conventional recirculating pneumatic separators.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: November 1, 2016
    Assignee: Evans MacTavish Agricraft, Inc.
    Inventor: Sam Levy
  • Patent number: 9394635
    Abstract: A weft feeder device for threads, in particular for weaving looms, of the type comprising a main body (1) within which there is housed an electric motor for the driving of a rotary shaft (2), the rotary shaft (2) driving into rotation, with its middle portion, a rotor (3), and a drum (T) rotatably mounted on the end portion of said rotary shaft (2) and kept fixed by magnetic means (6, 7), and wherein there are furthermore provided pairs of optical emitting/receiving sensors (E, R) are respectively arranged on the drum (T) and on an extension of the main body (I) of the weft feeder device which extends laterally to the lateral surface of the drum (T), said pairs of sensors (E, R) being apt to detect the presence/absence of a thread passing therebetween.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: July 19, 2016
    Assignee: ROJ S.R.L.
    Inventors: Alessandro Ballabio, Marco Covelli
  • Patent number: 9353468
    Abstract: A drum has a plurality of yarn loops wound thereon which are to be unwound upon request from a downstream machine. A weft-braking device provided with a braking member having a circular profile is biased against a delivery edge of the drum by driving elements. The yarn is adapted to run between the delivery edge and the braking member to receive a braking action by friction from them. The driving elements comprise at least one piezoelectric actuator which is deformable in response to a voltage applied thereto and has a movable operative end which is operatively connected to the braking member and a stationary operative end which is anchored to a stationary support.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: May 31, 2016
    Assignee: L.G.L. ELECTRONICS S.P.A.
    Inventors: Giorgio Bertocchi, Giovanni Pedrini, Pietro Zenoni
  • Patent number: 9328437
    Abstract: Apparatus for the intermediate storage of two band-like weft materials (1, 21) for a weaving machine (3), with two storage containers (7, 27) in which respectively a U-shaped loop (12, 22) of a weft material (1, 21) can be formed. Machine elements (14, 34) for the application of tensile forces (15, 35) onto the weft material (1, 21) in the inner space (9, 29) of the respective storage container (7, 27) are present. The inner spaces (9, 29) of the two storage containers (7, 27) respectively orient one of their two narrow sides (10, 30) toward one another. Deflection elements (16, 36) are respectively arranged on the storage container (7, 27) in such a manner so that the respective weft material (1, 21) can be supplied to the inner space (9, 29) in a region (17, 37) that lies closer to that one of the two narrow sides (11, 31) of this inner space (9, 29), which is not oriented toward the inner space (9, 29) of the respective other storage container (7, 27).
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: May 3, 2016
    Assignee: Lindauer DORNIER Gesellschaft mbH
    Inventors: Herbert Mueller, Thomas Laukamp, Dirk Janicijevic, Johannes Louven, Nicolas Mega, Michael Langer
  • Patent number: 9303338
    Abstract: The weft-braking device comprises a first annular plate coaxially supported in front of the delivery end of a stationary drum of a yarn feeder, and a second annular plate which is coaxially biased against the first annular plate by driving elements. The yarn is adapted to run between the annular plates in order to receive a braking action by friction. The driving elements comprise at least one piezoelectric actuator, which is deformable in response to a voltage applied thereto and has a movable operative end which is operatively connected to the second annular plate and a stationary operative end which is anchored to a stationary support.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 5, 2016
    Assignee: L.G.L. ELECTRONICS S.P.A.
    Inventors: Giorgio Bertocchi, Giovanni Pedrini, Pietro Zenoni
  • Patent number: 9169584
    Abstract: A method and means are disclosed for measured control of tape-like warps for shedding and taking-up operations when producing woven materials comprising tape-like warps and wefts. According to this invention, a displaceable contact surface of the warp control device is located between the warp supply source and the shedding device. The warp control device includes a displaceable member for providing contact surface to displace at least some of the tape-like warp for releasing them in a measured way for shed forming and taking-up operations. Further, the contact surfaces are retracted for enabling shed closing and measured taking-up.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: October 27, 2015
    Assignee: TAPE WEAVING SWEDEN AB
    Inventor: Nandan Khokar
  • Patent number: 9126799
    Abstract: A storage feed device for a yarn which unwinds from a corresponding bobbin and is fed to a textile machine. The device includes a rotary or fixed drum and an optical sensor member arranged to sense the movement of the yarn towards the textile machine. The optical sensor includes a plurality of emitters and receivers between which a light beam is generated and is interrupted by the yarn during its movement. The optical sensor includes a first fixed part and a second fixed part which includes the emitter and receiver elements, the first part being coaxial with the rotary member, the second being annular and surrounding the first part, the yarn moving between the parts.
    Type: Grant
    Filed: November 3, 2012
    Date of Patent: September 8, 2015
    Assignee: BTSR INTERNATIONAL S.P.A.
    Inventor: Tiziano Barea
  • Patent number: 8965553
    Abstract: Group of optic sensors (S) in a weft feeder, in particular for weaving looms, comprising one or more pairs of emitting sensors (E) and receiving sensors (R) arranged on a portion of the weft feeder (C) which extends laterally to the drum (T) of the weft feeder whereon the coils of the weft thread are wound, so as to form optic radiation going-paths from each of said emitting sensors (E) to a reflecting surface (9) provided on said drum (T) and optic radiation back-paths, from said reflecting surface (9) to corresponding receiving sensors (R), for detecting the presence/absence of a thread which crosses said paths. The optic sensors (E, R) are of the SMT type and are wired on a printed-circuit board (8) with an optic axis parallel to the plane of said board (8). A first group of total-reflection mirrors (V), one for each pair of emitting/receiving sensors (E, R), is inclined so as to deviate the optic radiation from the plane of the board (8) to a plane perpendicular to or inclined with respect to the same.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 24, 2015
    Assignee: RJO S.r.l.
    Inventors: Paolo Ricci, Luca Bagatin
  • Publication number: 20130276934
    Abstract: Group of optic sensors (S) in a weft feeder, in particular for weaving looms, comprising one or more pairs of emitting sensors (E) and receiving sensors (R) arranged on a portion of the weft feeder (C) which extends laterally to the drum (T) of the weft feeder whereon the coils of the weft thread are wound, so as to form optic radiation going-paths from each of said emitting sensors (E) to a reflecting surface (9) provided on said drum (T) and optic radiation back-paths, from said reflecting surface (9) to corresponding receiving sensors (R), for detecting the presence/absence of a thread which crosses said paths. The optic sensors (E, R) are of the SMT type and are wired on a printed-circuit board (8) with an optic axis parallel to the plane of said board (8). A first group of total-reflection mirrors (V), one for each pair of emitting/receiving sensors (E, R), is inclined so as to deviate the optic radiation from the plane of the board (8) to a plane perpendicular to or inclined with respect to the same.
    Type: Application
    Filed: December 21, 2011
    Publication date: October 24, 2013
    Applicant: ROJ S.R.L.
    Inventors: Paolo Ricci, Luca Bagatin
  • Publication number: 20130276933
    Abstract: A weft feeder device for threads, in particular for weaving looms, of the type comprising a main body (1) within which there is housed an electric motor for the driving of a rotary shaft (2), the rotary shaft (2) driving into rotation, with its middle portion, a rotor (3), and a drum (T) rotatably mounted on the end portion of said rotary shaft (2) and kept fixed by magnetic means (6, 7), and wherein there are furthermore provided pairs of optical emitting/receiving sensors (E, R) are respectively arranged on the drum (T) and on an extension of the main body (I) of the weft feeder device which extends laterally to the lateral surface of the drum (T), said pairs of sensors (E, R) being apt to detect the presence/absence of a thread passing therebetween.
    Type: Application
    Filed: December 13, 2011
    Publication date: October 24, 2013
    Applicant: ROJ S.R.L.
    Inventors: Alessandro Ballabio, Marco Covelli
  • Publication number: 20130168480
    Abstract: A drum has a plurality of yarn loops wound thereon which are to be unwound upon request from a downstream machine. A weft-braking device provided with a braking member having a circular profile is biased against a delivery edge of the drum by driving elements. The yarn is adapted to run between the delivery edge and the braking member to receive a braking action by friction from them. The driving elements comprise at least one piezoelectric actuator which is deformable in response to a voltage applied thereto and has a movable operative end which is operatively connected to the braking member and a stationary operative end which is anchored to a stationary support.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 4, 2013
    Applicant: L.G.L. ELECTRONICS S.P.A.
    Inventor: L.G.L. ELECTRONICS S.P.A.
  • Patent number: 8220500
    Abstract: A power loom includes a frame, a plurality of warps, a weft spool, a plurality of wefts, and a speed adjustment device. The speed adjustment device includes a support rack, a rotation shaft, a drive motor, a sensor, a press member, and a press rod. Thus, when the output speed of the wefts is gradually reduced to a preset value, the wefts are tensioned and moved upward, and the press member is moved upward to touch the sensor which sends a signal to actuate the drive motor which increases the rotation speed of the rotation shaft and the weft spool to increase the output speed of the wefts largely so that the wefts can be pulled outward from the weft spool quickly to prevent the wefts from being torn or broken due to an excessive pulling force.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: July 17, 2012
    Inventor: Shun-Hsing Wang
  • Patent number: 7762288
    Abstract: A method for insertion of a weft thread (2, 3, 4) on a weaving loom whereby insertion parameter is determined and in which on the one hand at least one control parameter for an insertion is adapted or, on the other hand, at least one control parameter for a weaving cycle is adapted. A weaving loom with control devices (41,42) and a selection device (43) for the application of a method as stated above.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: July 27, 2010
    Assignee: PICANOL N.V.
    Inventor: Patrick Puissant
  • Publication number: 20100071799
    Abstract: Yarn loops are unwound from a stationary weft-winding drum during a weft insertion. A weft-braking device locks the yarn unwinding from the drum at the end of the insertion, and comprises at least one braking member which is arranged by side of the drum near its delivery end and is movable under control of an actuator between a resting position in which it is spaced from the outer surface of the drum and does not interfere with the unwinding yarn, and an operative position in which it engages the outer surface of the drum and cooperates with it to brake the yarn.
    Type: Application
    Filed: September 18, 2009
    Publication date: March 25, 2010
    Inventors: Giovanni Pedrini, Ruggero Magoni
  • Patent number: 7654290
    Abstract: A method for transporting the weft thread through the shed of an air-jet weaving machine having a nozzle fed with a flowing transportation medium, wherein the portion, changeable along the weft thread, of the natural thread charges arranged irregularly on the weft thread is contactlessly registered by means of an electrode array, wherein the changing total charge is determined on the electrode array, wherein the periodic change in the total charge is evaluated for determining the axial velocity of the weft thread, and wherein the nozzle of the weaving machine is controlled as a function of the axial velocity of the weft.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: February 2, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jan Colditz, Matthias Sachse
  • Patent number: 7650913
    Abstract: A weaving machine starts-up in slow speed operation during a first weaving cycle following the machine start. To help avoid weft breaks, a method is provided to hold a weft thread inserted into the loom shed during the first weaving cycle. A sensor monitors the weft insertion. The inserted weft thread is held by binding threads at a location downstream from an inlet side of the loom shed, before the weft thread is bound by the warp threads. The binding of the weft thread by the binding threads is carried out dependent on a signal of the sensor.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: January 26, 2010
    Assignee: Lindauer DORNIER Gesellschaft mbH
    Inventors: Valentin Krumm, Wolfgang Metzler, Dieter Teufel
  • Publication number: 20090288730
    Abstract: The loom, in particular a ribbon loom, has at least one electrically-driven thread transport device for the weft threads for processing at least one thread or a group of threads over at least the distance between two lengths of weft. It also contains a fabric outlet for the woven fabrics and an electronic control device for controlling the loom based on a pattern program for the woven fabrics to be produced. The loom can be better adjusted to the woven fabrics to be produced, in other words to the pattern and the thread material used, if the control device has control means for adjusting automatically at the thread transport device the feed length of the thread to be delivered according to the data predefined in the pattern program, the fabric outlet, and the width of the woven fabrics to be produced.
    Type: Application
    Filed: April 20, 2007
    Publication date: November 26, 2009
    Inventor: Francisco Speich
  • Patent number: 7543610
    Abstract: A thread clamp for a rapier head (1) is presented which contains a clamping part (4) for firmly clamping a weft thread (3) and an actuator (5) for moving the clamping part (4). The actuator (5) includes a ferromagnetic core (12), an armature (11) and at least one winding (13) which is arranged on the core or armature in order to produce a magnetic field in the latter and to move the armature and the clamping part, which is operatively connected to the latter, with the core (12) having two limbs (12.1, 12.2) between which the armature (11) is movably arranged, and with each limb being provided with a permanent magnet (14.1, 14.2) in order to hold the armature at one of the two rest positions in the current-free state of the winding.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: June 9, 2009
    Assignee: Sultex AG
    Inventors: Erich Kläui, Marius Bachofen, Dietmar Markward
  • Publication number: 20090101228
    Abstract: A projectile-weaving machine is equipped with a weft yarn feeder having a stationary storage body for intermediately storing a yarn store consisting of windings, the weft feeder comprising a passive hollow balloon breaker functionally associated to a withdrawal rim of the storage body. In addition to the passive balloon breaker, several yarn control elements are separated in circumferential direction for being actively moved by a drive from an outer rest position into an inner operative position which without totally stopping withdrawn weft yarn are brought into a mechanical engagement on the weft yarn upstream from the withdrawal rim and starting with an end phase of an insertion on the weft yarn while the weft yarn is taken off from the yarn store over the withdrawal rim.
    Type: Application
    Filed: October 7, 2008
    Publication date: April 23, 2009
    Inventor: Fiorenzo Ghiardo
  • Publication number: 20090084461
    Abstract: Method for introducing a weft thread in a weaving machine which comprises a device (10) for introducing a weft thread (3, 64), which method comprises adjusting a control parameter and adapting the number of insertions for determining the mean deviation of an insertion parameter. Weaving machine which comprises a device (10) for employing an abovementioned method.
    Type: Application
    Filed: April 5, 2006
    Publication date: April 2, 2009
    Inventor: Patrick Puissant
  • Patent number: 7475709
    Abstract: The invention relates to a method for inserting weft yarn material, comprising an insertion system in a loom. According to the invention, for every insertion the insertion system (A) is supplied with a substantial part of the weft yarn required for the insertion in a loose and substantially tension-free manner so as to be intermittently pulled off. A tubular package of adjacent windings is produced from the weft yarn material on an inner mechanical support (S) by way of an at least substantially continuous winding process and is conveyed forward in withdrawal direction. For an insertion, a number of windings that corresponds at least approximately to the weft yarn section intended to be inserted is detached or set free from the support while maintaining its tubular configuration without yarn tension. The weft yarn material is withdrawn directly inwardly from the frontmost winding and then further along the tube axis (X).
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: January 13, 2009
    Assignee: IROPA AG
    Inventors: Bjorn Halvarsson, Patrik Magnusson, Anders Svanstrom
  • Publication number: 20080178959
    Abstract: A catching device (1) for holding an inserted weft thread in a rapier weaving machine having at least one rapier (6), which is movable along a rapier track (6a), includes a holding channel (5) which can be mounted in a stationary manner on the rapier weaving machine in order to take up a thread end of the inserted weft thread (9) and to hold it. In addition, the catching device includes a deflection nozzle (3) which can be mounted in stationary manner on the rapier weaving machine in order to deflect the thread end of the inserted weft thread to the holding channel (5).
    Type: Application
    Filed: November 21, 2007
    Publication date: July 31, 2008
    Applicant: Sultex AG
    Inventor: Marcel Christe
  • Patent number: 7156337
    Abstract: The invention relates to a method for inserting weft yarn material, comprising an insertion system in a loom. According to the invention, for every insertion the insertion system (A) is supplied with a substantial part of the weft yarn required for the insertion in a loose and substantially tension-free manner so as to be intermittently pulled off. A tubular package of adjacent windings is produced from the weft yarn material on an inner mechanical support (S) by way of an at least substantially continuous winding process and is conveyed forward in withdrawal direction. For an insertion, a number of windings that corresponds at least approximately to the weft yarn section intended to be inserted is detached or set free from the support while maintaining its tubular configuration without yarn tension. The weft yarn material is withdrawn directly inwardly from the frontmost winding and then further along the tube axis (X).
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: January 2, 2007
    Assignee: Iropa AG
    Inventors: Bjorn Halvarsson, Patrik Magnusson, Anders Svanstrom
  • Patent number: 7134458
    Abstract: A method of producing a reinforcing fiber woven fabric, for producing on a weaving machine a reinforcing fiber woven fabric from wefts of reinforcing fiber yarns and warps of reinforcing fiber yarns, the method comprising providing, on a weft supply passage for supplying a weft from a weft bobbin to the weaving machine, a weft unwinding means for laterally unwinding weft from the weft bobbin, and a weft storing cylinder body for sucking along with air, part of weft thus unwound and directed toward the weaving machine and temporarily storing it therein, contactingly supporting weft, minimized in generation of twist by means of lateral unwinding, by a weft contacting means provided in the weft storing cylinder body while being stored in the weft storing cylinder, and preventing the generation of twist of weft being stored by the supporting; a production device therefore, and a reinforcing fiber woven fabric produced therefrom.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: November 14, 2006
    Assignee: Toray Industries, Inc.
    Inventors: Ikuo Horibe, Kiyoshi Momma, Akira Nishimura
  • Patent number: 7040353
    Abstract: A weft yarn deflection brake including a braking element 5 which can be adjusted in timed fashion and by its variable braking force, a drive motor 6 for said braking element and a control device CU connected with said drive motor 6 is equipped by a position detection means E associated to said braking element 5. Said position detecting means E is connected to an adjustment means 9 for functional parameters of the deflection brake. During operation functional parameters as e.g. the braking force and the time of the activation of the deflection brake are varied adaptively in order to assure a performance of the deflection brake which is deemed to be optimal for the insertion system. At selected points in time known target positions of the braking element are set and compared with the actual positions. In case that deviations are detected a respective functional parameter is varied.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: May 9, 2006
    Assignee: Iropa AG
    Inventor: Marco Covelli
  • Patent number: 6997215
    Abstract: The method for weaving low flaw cloths (4) comprises an elimination of weft thread sections which have irregularities (22, 22?). The method is carried out by means of a weaving machine (1) which in the presence of an irregularity on a weft thread (2) to be woven can be controlled in such a manner that at least one weft thread section which comprises the irregularity can be removed from the cloth being formed after an insertion operation. The irregularity is in each case detected by a sensor (23a, 23b, 23c) prior to the feeding in of the weft thread into a thread store (21). After the detection of the irregularity an incorporation of the weft thread into the cloth is prevented in that a shed forming apparatus (100), for example a dobby for the moving of heald frames (10), is controlled in such a manner that that all warp threads (3) of the cloth to be formed are deflected either downwardly or upwardly into positions to the side of a weft thread insertion line (2?).
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: February 14, 2006
    Assignee: Sultex AG
    Inventor: Andrea Bühlmann
  • Patent number: 6983771
    Abstract: A feeding device for a mechanical weaving machine, including a winding element which can be driven in a rotating manner, a stationary storage, and at least one stop element. The stop element can be axially and radially moved in relation to the storage body, between an unwinding position releasing thread yarn and a stop position wherein the stop element is applied to the foremost winding and which ends the weft insertion. A yarn clamp is arranged downstream from the stop element, which initiates the respective weft insertion, and which can be switched between a passive position and a clamping position. The storage body has a small diameter, and the stop element is moved axially to the stop position solely by the windings due to a transport motion of the windings on the storage body.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: January 10, 2006
    Assignee: Iropa AG
    Inventors: Björn Halvarsson, Patrik Magnusson, Anders Svanström
  • Patent number: 6976511
    Abstract: A yarn processing system includes a weft yarn feeding device with a control unit and a power loom which consumes weft yarn. In operation, a run-signal is generated by the power loom that initializes the start-up of the weaving operation. A start-signal that is derived from the run-signal is transmitted to the feeding device. The start-signal is generated externally of the feeding device. The drive motor of the feeding device is driven at a predetermined speed, after receiving the external start-signal in order to prevent an undesired reduction of the size of a yarn store by the initial consumption demand of the start-up of the weaving operation of the power loom. A signal transmitting connection is provided in the yarn processing system between the power loom and a control unit of the feeding device for transmitting the start-signal.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: December 20, 2005
    Assignee: Iropa AG
    Inventor: Marco Covelli
  • Patent number: 6953066
    Abstract: The method of disposing the weft, in a loom for displacing the weft led into a weft insert nozzle by jetting the air current from a guide nozzle disposed in a reed sley and releasing the weft from the upstream side of the weft inset nozzle to the vicinity of an intake of an discharge device, is characterized in that, when displacing the weft to the vicinity of the intake, the reed sley is stopped at a position where the air current from the guide nozzle is directed to the vicinity of the intake.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: October 11, 2005
    Assignee: Tsudakoma Kogyo Kabushiki Kaisha
    Inventors: Hidetomo Yoneda, Mutsuo Fujitani
  • Patent number: 6948532
    Abstract: A method for the weft insertion in a jet weaving machine is proposed, in which in each work cycle a weft thread (S1) of predeterminable length which is to be inserted is drawn off from a winding drum (3) of a thread supply apparatus (2), the weft thread (S1) is inserted into an open shed (17) by means of a main nozzle (11) which is fed with a transport medium, is bound in into the cloth (G) through the change of shed, and is severed at the cloth edge which is near the main nozzle (11). In each work cycle the drawing off of the weft thread (S1) to be inserted is interrupted at least once in such a manner that at first a first predeterminable thread length is released for the drawing off from the winding drum (3) and then at least one further predeterminable thread length is also released for the drawing off from the winding drum (3).
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: September 27, 2005
    Assignee: Sultex AG
    Inventor: Klaus Berktold
  • Patent number: 6941976
    Abstract: The invention relates to a method for the control of a power-loom yarn feed device, whereby a drive motor for a rotating winding element is accelerated, decelerated or stopped, on demand, for yarn storage and, in order to avoid slack yarn during the stopping of the motor, the motor is independently driven slowly during a crawl phase, such that the motor is first stopped and then after stopping is slowly rotated in the crawl phase.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: September 13, 2005
    Assignee: Iropa AG
    Inventors: Paer Josefsson, Patrik Jedheimar
  • Patent number: 6918414
    Abstract: A weft length measuring storage unit is characterized by comprising avoidance mechanism for setting said weft length measuring storage unit such that a weft is not measured its length or stored while maintaining operable one or more driven members which are driven by the main shaft of a loom to measure the weft or stored before the loom is at least inched or reversed.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: July 19, 2005
    Assignee: Tsudakoma Kogyo Kabushiki Kaisha
    Inventors: Masaru Anada, Shinnichi Hongo
  • Patent number: 6868871
    Abstract: A method for controlling the motion of a yarn stopper magnet in a measuring feeder for textile machines, preferably for weaving machines of the air-or waterjet-type. The stopper magnet has an armature connected to a yarn stopper element, which armature co-acts with at least one electromagnetic coil in order to achieve the desired motion of the stopper magnet. During an initial part of the motion of the stopper element, the electromagnetic coil is supplied with a voltage with an amplitude considerably exceeding the average level of the voltage during the remaining part of the motion, in order to achieve an optimally fast motion with a low input energy amount and thereby a low heat development, as well as low kinetic energy (speed) of the stopper element at the end of its motion.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: March 22, 2005
    Assignee: Iropa AG
    Inventors: Birger Johansson, Henrik Svensson
  • Patent number: 6810918
    Abstract: A supply spool supplies a weft thread through an adjustable actuated thread brake and a thread tension sensor to a weft thread accumulator, from which an accumulated insertion length of the thread is provided to a weft insertion device. The tension sensor provides a measured actual thread tension signal to a control arrangement, which compares the actual tension to a selected rated tension, and, dependent on the deviation therebetween, provides a control signal to an actuator of the thread brake, so that the actual thread tension constantly corresponds to the selected rated tension. Another sensor provides a signal indicating a change from an empty spool to a full spool. Responsive thereto, the control arrangement actuates the thread brake to an adjustable starting brake setting as a coarse adjustment. Then the self-regulating fine adjustment is continued. A constant winding tension and thread accumulation length are achieved in the thread accumulator.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: November 2, 2004
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Werner Birner, Herbert Reinhardt, Christian Hannes
  • Patent number: 6752177
    Abstract: A self-adjusting braking device for weft feeders, comprising a frustum-shaped braking body that acts on a thread, is suspended elastically in front of the drum of the feeder and is pushed into elastic tangent contact with the drum along an exit circumference of the drum. The braking body has, at a larger-diameter region thereof designed to make contact with the drum, a discontinuous annular contact element, with a plurality of through slits which are arranged so as to be equidistant and delimit a row of contact laminas.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: June 22, 2004
    Assignee: L.G.L. Electronics S.p.A.
    Inventors: Pietro Zenoni, Rosario Castelli, Giovanni Pedrini
  • Patent number: 6752178
    Abstract: A method for inserting a longitudinally elastic yarn from a yarn supply into a shuttleless weaving machine. The yarn is first removed with positive yarn feed from the yarn supply. Afterwards, the yarn in intermediately stored in adjacent windings with a predetermined elongation while using a winding speed that is synchronized with the positive feed speed, and for each insertion process, the yarn is released only with a predetermined insertion length.
    Type: Grant
    Filed: January 16, 2003
    Date of Patent: June 22, 2004
    Assignee: Iropa AG
    Inventor: Kurt Arne Gunnar Jacobsson
  • Patent number: 6739357
    Abstract: A device for smoothening the unwinding from the cylinder of the loops of yarn of the weft reserve in weft suppliers for fluid jet looms, is described. The device comprises a pneumatic device capable of subjecting the yarn to a fluid flow, such as an air stream, having at least one motion component directed in the running direction of the yarn. The flow, independently from the dimensional and superficial characteristics of the yarn, maintains the latter constantly under mechanical tension, so that the slackening of the loops wound on the terminal portion of the cylinder of the supplier is prevented.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: May 25, 2004
    Assignee: L.G.L. Electronics S.p.A.
    Inventors: Giovanni Pedrini, Ruggero Magoni
  • Patent number: 6726139
    Abstract: A method and apparatus for feeding a thread to a textile machine in a twist-free manner, which thread has a band-like character. The thread is taken twist-free from a stock and is stored on a stationary storage drum in a thread feeding apparatus. The thread feeding apparatus has a rotatable central shaft and a winding element which protrudes therefrom. During operation of the thread feeding apparatus, functional twists are produced in the thread only during the transition from the central shaft into the winding element. The twists are inhibited from being transported oppositely to the thread path direction and are regularly conveyed to the storage drum in almost perfect match with the rotations of the central shaft. At least one guide gap that is stationary in relation to the central shaft is provided along the thread path in the area of transition of the central shaft into the winding element.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: April 27, 2004
    Assignee: Iropa AG
    Inventor: Sture Persson
  • Patent number: 6691942
    Abstract: The invention relates to a yarn feeding device with a stationary storage drum and an adjustable yarn pitch. The yarn feeding device comprises a motor housing, a drive shaft of a winding element and a storage drum. Said storage drum consists of meshing finger-shaped cages. The finger-shaped advance cage has an advance bushing that is eccentric and skew with respect to the drive shaft. A backturn detent for the take-up element is mounted in said advance cage. The backturn detent is furthermore interposed between the finger-shaped advance cage and the drive shaft.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: February 17, 2004
    Assignee: Iropa AG
    Inventors: Paer Josefsson, Alf Bengtsson
  • Patent number: 6637692
    Abstract: A yarn feeder including a stationary storage body and a yarn brake having a brake element which axially contacts the storage body. The brake element is embodied by a truncated cone-shaped, thin-walled braking band which is held externally in an elastic, circular retaining membrane joined to a carrier ring that is concentric to the brake band. At least outside the retaining area for the brake band, several areas having a reduced wall thickness are provided in the retaining membrane.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: October 28, 2003
    Assignee: Iropa AG
    Inventor: Kurt Arne Gunnar Jacobsson
  • Publication number: 20030122018
    Abstract: The invention relates to a thread that is fed to a textile machine in a twist-free manner and has a band-like character. The thread is taken from a stock in a twist-free manner and is mounted on a stationary storage drum in a thread feeding appliance having a rotatable central shaft and a winding element which protrudes therefrom and towards the outside. Said thread is supplied to the textile machine in an overhead manner and by means of the storage drum. During operation of the thread feeding appliance, functional twists are produced in the thread only during transition from the central shaft into the winding element. Said twists are inhibited from being transported back against the thread path direction and, together with the thread, are regularly conveyed to the storage drum in almost perfect match with the rotations of the central shaft.
    Type: Application
    Filed: October 29, 2002
    Publication date: July 3, 2003
    Inventor: Sture Persson
  • Patent number: 6572047
    Abstract: A ring-shaped, thin walled braking body with a circumferentially continuous and conical braking surface in a yarn brake for a yarn feeding device. The braking body is held by a first spring assembly in its outer region in a ring-shaped carrying structure. The braking body is formed as a closed circular ring with the conical braking surface positioned adjacent to the inner diameter. The braking surface is continued by a plurality of outwardly extending lamellas having an arc curvature. The lamellas define the first spring assembly. The outer ends of the spring lamellas are interconnected by a ring element which can be mounted to the carrying structure. In a yarn feeding device equipped with the yarn brake, the carrying structure is supported in an universal joint such that it can tilt relative to the support to all sides.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: June 3, 2003
    Assignee: Iropa AG
    Inventor: Fiorenzo Ghiardo
  • Patent number: 6546967
    Abstract: In an arrangement for the linear measurement and magazine storage of thread (7) ahead of the pick in looms or textile machines (18) use is made of thread feed elements (1) and thread length-measuring elements (2) together with magazines (6) designed to store a predetermined length of thread ahead of the pick in the machine. Elements (5, 5′) reversing parts of the thread are designed to bring about interaction with thread parts between the thread support elements. The reversing elements are designed, during said interaction, to displace thread parts in directions that deviate from the feed direction into the magazine or magazines to a position or positions therein. The reversing elements are designed, after the introduction of read parts into the magazines, to return to their starting positions or home positions. The magazines are designed with devices, which retain parts of the thread in said positions.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: April 15, 2003
    Assignee: Texo AB
    Inventor: Bo Lindblom