Warp Selecting And Separating Patents (Class 28/202)
  • Patent number: 8032995
    Abstract: The device is used for separating a partial quantity of threads from a thread layer by means of a movable separating means, wherein the thread layer is formed from a plurality of adjacently arranged threads. The device includes a movement device for moving the separating means relative to the thread layer, a control device for controlling the movement device and a detection device for detecting threads, wherein the detection device allows the detection of a reference position relative to the thread layer and the movement device can be controlled in such a manner that the separating means can be brought to a working position relative to the thread layer and can execute a separating movement in which the separating means is at least partially inserted between two adjacent threads.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: October 11, 2011
    Assignee: Staubli AG Pfaffikon
    Inventors: Paul Metzler, Martin Hunziker
  • Publication number: 20100031484
    Abstract: The device is used for separating a partial quantity of threads from a thread layer by means of a movable separating means, wherein the thread layer is formed from a plurality of adjacently arranged threads. The device includes a movement device for moving the separating means relative to the thread layer, a control device for controlling the movement device and a detection device for detecting threads, wherein the detection device allows the detection of a reference position relative to the thread layer and the movement device can be controlled in such a manner that the separating means can be brought to a working position relative to the thread layer and can execute a separating movement in which the separating means is at least partially inserted between two adjacent threads.
    Type: Application
    Filed: June 21, 2007
    Publication date: February 11, 2010
    Applicant: STAUBLI AG PFAFFIKON
    Inventors: Paul Metzler, Martin Hunziker
  • Patent number: 7356893
    Abstract: In order, during the processing of a thread layer, which is tensioned in tensioning means and exhibits threads running parallel to one another, to be able to vary the sequence of the processing of the threads, a storage device is proposed for the temporary deposition of at least one of the threads which can be separated from a thread layer. The storage device is provided with at least one storage means, which exhibits at least one retaining means for the retention of one or more threads under tension, whereby the minimum of one retaining means is arranged outside the plane of the thread layer. In addition, the storage device exhibits at least one transfer means, with which the thread can be transferred to the storage means.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: April 15, 2008
    Assignee: Stäubli ag Pfäffikon
    Inventor: Walter Bachmann
  • Patent number: 6199787
    Abstract: A method of winding yarn into hanks, comprising the steps of loading a beam having a sheet of parallel ends of yarn wound thereon onto a rotatable beam stand; unwinding the sheet from the beam and passing the sheet through a nip between two reciprocating rolls; separating the parallel ends of yarn in the sheet from each other; and guiding each of the separated ends of yarn to a rotatable reel. The ends of yarn are then wound onto the rotatable reel by rotating the beam to release the sheet wound thereon; rotating the interacting rolls to draw the sheet through the nip; and rotating the reel to wind each separated end of yarn onto the reel. The rotational velocity of the beam and of the reciprocating rolls are controlled so as to keep the tension on the sheet of yarns below a defined value. By controlling tension, one reduces the likelihood of thread breakage and causes the yarns to be wound onto the reels in the form of loose hanks.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: March 13, 2001
    Inventors: Asif Jaffar, Mohammad Ismail Jaffar
  • Patent number: 5794319
    Abstract: A method and a device for drawing warp threads into harness elements of a weaving machine through use of a drawing-in member which effects a reciprocating movement and with at least one conveying device for harness elements. In order to increase the capacity of devices of this type, the drawing-in member is constructed to carry out a reciprocating movement which is short compared with the length of the warp threads. This is done by providing a transporting device that transports the warp thread to a point in front of a weaving reed.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: August 18, 1998
    Assignee: Staubli AG
    Inventor: Martin Hunziker
  • Patent number: 5355566
    Abstract: The drawing-in machine contains a drawing-in frame having a clamped warp-thread layer, a selecting member for selecting the individual warp threads of the warp-thread layer, and an apparatus for presenting the selected warp threads to a drawing-in member. The apparatus for presenting the warp threads has a transport clamp (31) of adjustable stroke for the controlled transport of the separated thread end to a position to be received by the drawing-in member, a guide element (32) for controlling the thread during the transport operation and a thread holding device (21) for controlling the thread during the drawing-in. Full control of the thread is thereby ensured, and faults are largely eliminated.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: October 18, 1994
    Assignee: Zellweger Uster AG
    Inventors: Hermann Eglseer, Hans Wilhelm
  • Patent number: 5274894
    Abstract: An automatic drawing-in machine separates warp yarn ends from one another and presents a separated end portion to a pick-up location in alignment with harness components such as a heald and/or a drop wire and/or a reed gap which have themselves been brought to their intended drawing-in positions by different, separately operated systems. Then a drawing-in member engages the yarn end and pulls it through the designed harness component(s). The drawing-in machine (SE) contains a drawing-in member, an arrangement for manipulating the individual harness elements, and a control stage (SM) for controlling the various functions of the drawing-in machine. The latter is composed of modules (PM, SM, XM, AM) for the various functions. The individual modules forming functional, independent units and being connected to one another via interfaces. The modules are controlled by a higher-level computer of the control stage (SM), via which the cross connections between the individual modules also run.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: January 4, 1994
    Assignee: Zellweger Uster AG
    Inventors: Hans Wilhelm, Karl Schlegel
  • Patent number: 5243742
    Abstract: A warp supplying apparatus comprising a warp gripping chuck for gripping a leading end portion of a warp thread, a cutter for cutting the leading end portion of the warp thread gripped by the warp gripping chuck, the cutter being provided above the warp gripping chuck, a suction nozzle that is provided below the warp gripping chuck and draws in a cut end portion of the warp thread cut by the cutter, a suction box provided between the warp gripping chuck and the suction nozzle for drawing in and guiding the cut end portion to the suction nozzle, the suction box being formed with a suction chamber and a slit through which the cut end portion is drawn in within the suction chamber by suction, and a warp conveying unit for conveying the cut end portion within the suction chamber from the warp gripping chuck to the suction nozzle.
    Type: Grant
    Filed: October 20, 1992
    Date of Patent: September 14, 1993
    Assignee: Teijin Seiki Co., Ltd.
    Inventors: Yoshihide Nishimura, Hiroshi Yamada
  • Patent number: 5134759
    Abstract: A plate for a separator for the successive seizure and separation of threads held in an array has a leading edge and at least one hook-shaped recess in the leading edge. The recess has a depth in the direction of plate movement which is greater than half the width of the recess. Between a hook tip and the leading edge there extends a fender edge at an angle of 15.degree. to 90.degree. relative to the direction of plate movement. The hook tip is rounded with a radius of up to 10% of the width of the hook-shaped recess.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: August 4, 1992
    Assignee: Hermann Wangner GmbH & Co. KG
    Inventors: Hans-Eugen Hacker, Klaus Esser
  • Patent number: 5099555
    Abstract: A thread separating apparatus separates an outermost thread from a large number of threads arranged substantially parallel and in close proximity to each other within one plane. The apparatus has a movable table that is movable in a direction which is parallel to the plane in which the threads are arranged and which is substantially perpendicular to the threads. A thread guide member and a thread separating device project from the movable table in the direction of movement of the movable table. The guide member has a slit in which threads are to be aligned. The thread separating device has a pair of separating members which can be opened and closed as desired to separate the outermost thread from the other threads. The movable table is further provided with a detector for detecting in a non-contact manner a diameter of thread which is to be separated, and a switch that is activated by the separated thread.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: March 31, 1992
    Assignee: CKD Corporation
    Inventor: Tetsuo Okuda
  • Patent number: 5003675
    Abstract: A separator for successively seizing threads held in an array includes a frame, in which at least one plate is guided for seizing the threads. The frame is displaceable toward and away from the array. Each plate carries a piercing needle which pierces the thread for seizing it. Each plate can have two piercing needles disposed at a distance from one another and pointing towards one another.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: April 2, 1991
    Assignee: Herman Wangner GmbH & Co. KG
    Inventors: Klaus Esser, Hans-Eugen Hacker
  • Patent number: 4974300
    Abstract: The invention concerns a thread separator for seaming machines, especially the seaming of dewwatering webs, drying webs, felts and so on. The object underlying the invention consists therein to optimize the reliability of the function of the thread separator by configuring their gripper needles such that the singling out of each foremost thread of a row of warp threads of the web is ensured and each piercing and taking with of the following thread is avoided. It is proposed to construct the gripper needles as separator needles, providing them with special hooks, of which at least two are located with respect to the upper side and the lower side of the web strip related to the row of threads in the same or parallel level opposite to one another, the tips thereof being directed to the opposing thread surface, respectively. The separator needles are provided with concave apertures adpated to the diameter of the thread which is to be separated on grasping it.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: December 4, 1990
    Assignee: F. Oberdorfer GmbH & Co., KG, Industriegewebe-Technik
    Inventor: Fritz Vohringer
  • Patent number: 4894893
    Abstract: Here is disclosed an apparatus for successive drawing-in of warp through repsective reed blade gaps of a reed in the automatic loom, comprising a nozzle disposed above the reed which is movable transversely of the reed blades and extended from an upper portion to a bottom side thereof by a warp end feeding slit having its upper opening serving as a warp end inlet, its lower opening serving as a warp end outlet and its front opening narrower than the interior of the warp feeding slit itself; and the nozzle is further provided therein with an air injection port adapted to inject a stream of pressurized air downwardly into the warp end feeding slit substantially in the form of a parallel-flow and thereby to produce an air stream flowing from the warp end inlet towards the warp end outlet under an ejector effect.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: January 23, 1990
    Assignee: C K D Kabushiki Kaisha
    Inventor: Tetsuo Okuda
  • Patent number: 4866821
    Abstract: A separator for successively seizing threads (14) held in an array (28) includes a frame (10) having a front face or recess gap (12) and in which two or more strap or bar needles (15, 16, 18) are slidably disposed side by side. Each needle is provided with a pair of facing hooks (20, 22; 24, 26) at opposite sides of a cutout in its forward edge for cooperatively seizing a single thread for separation when the needles are driven in opposite directions.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: September 19, 1989
    Assignee: Hermann Wangner GmbH & Co. KG
    Inventors: Hans-Eugen Hacker, Peter Defranceski
  • Patent number: 4860411
    Abstract: The invention concerns a thread separator for seaming machines, especially the seaming of dewatering webs, drying webs, felts and so on.The object underlying the invention consists therein to optimize the reliablility of the function of the thread separator by configuring their gripper needles such that the singling out of each foremost thread of a row of warp threads of the web is ensured and each piercing and taking with of the following thread is avoided.It is proposed to construct the gripper needles as separator needles, providing them with special hooks, of which at least two are located with respect to the upper side and the lower side of the web strip related to the row of threads in the same or parallel level opposite to one another, the tips thereof being directed to the opposing thread surface, respectively. The separator needles are provided with concave apertures adapted to the diameter of the thread which is to be separated on grasping it.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: August 29, 1989
    Assignee: F. Oberdorfer GmbH & Co. KG, Industriegewebe-Technik
    Inventor: Fritz Vohringer
  • Patent number: 4584829
    Abstract: Separate strands of embroidery floss are separated by drawing a bundle of strands of the floss through a slot and then separating individual strands which have passed through the slot and threading them through different non-aligned, spaced-apart slots by providing a tension on the downstream strands sufficient to pull them through the various slots.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: April 29, 1986
    Inventor: H. Jessie Heinke
  • Patent number: 4545099
    Abstract: The warp threads presented from a curtain of threads are slightly spread apart and tensioned by a constantly rotating tensioning shaft with an enlarged part. A sleeve with a screw-like guidance groove is slipped over the last part of the tensioning shaft, this sleeve being switched as needed by means of a coupling to be driven in synchronization with the tensioning shaft or to be shut off in a specific angular position. The sleeve is provided at its beginning with a knife-like guide beak which during rotation separates the outermost warp thread from the curtain of threads and deposits it into the guidance groove. The spacing between the turns of the groove corresponds to the spacing between the draw-in needles. When the sleeve is stopped, the separated warp threads individually deposited into the turns of the groove are arranged in the proper transfer position to the draw-in needles.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: October 8, 1985
    Assignee: Lindauer Dornier Gesellschaft mbH
    Inventors: Claus Tovenrath, Frank Tovenrath
  • Patent number: 4164805
    Abstract: An apparatus for dividing warps by means of leases, which is of the type having divider elements for the momentary edge warp end or thread and a feeder for the divided or separated threads for feeding such threads to tying elements. The divider elements separate the edge warp thread from the warp sheet in that the divider or separator elements, together with lease cords defining the lease following the separation of a thread, change their position relative to the warp sheet in such a manner that all threads following the edge warp thread are displaced away therefrom and the feeder only then moves through the complete path needed for the infeed of the separated thread to the tying elements when in fact a thread has been separated. Means ensure that the divider elements only then change their position relative to the warp sheet when the feeder has moved theough its complete path.
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: August 21, 1979
    Assignee: Zellweger Uster Ltd.
    Inventor: Alois Altenweger