US3165275A - Coil winding machine with yarn severing device - Google Patents

Coil winding machine with yarn severing device Download PDF

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Publication number
US3165275A
US3165275A US251330A US25133063A US3165275A US 3165275 A US3165275 A US 3165275A US 251330 A US251330 A US 251330A US 25133063 A US25133063 A US 25133063A US 3165275 A US3165275 A US 3165275A
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United States
Prior art keywords
yarn
gripper
seizing
severing device
coil
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Expired - Lifetime
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US251330A
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English (en)
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Furst Stefan
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • My invention relates to machines for winding yarn from bobbins or other yarn supplying coils into packages, such as cheeses or cones, of the shape and size desired for further fabrication of the yarn.
  • my invention relates to coil winding machines in which, upon depletion of a yarn supply coil or in the event of yarn breakage between supply coil and take-up spool, an automatic yarn seeking device, equipped with pneumatic and/or mechanical grippers, seizes the yarn ends from the new or undepleted supply coil and from the take-up spoolyand conveys the two ends to a readyingposition, such as to a knotting device where the ends are tied together before the winding operation is .
  • the yarn coming from the supply coil breaks somewhere between a yarn tension er and the take-up spool.
  • the free length of yarn extending from the take-up spool and no longer held by a yarn tensioner or other means may then fling about or flutter and become attached to adjacent machine parts, particularly in machines operating with a current of air for removing lint or for other cleaning purposes.
  • the gripper thereafter seizing the yarn, will carry a doubled thread to the knotter.
  • the resulting knots are faulty. That is, they comprise double threads or loose thrurns which may cause stoppage or defective products during further fabrication in textile manufacture, because such faulty spots must no longer be present in the yarn during subsequent warping, weaving or knitting operations.
  • Another object of my invention is to minimize such trouble by reliably preventing the supply of double threads to the knotter. Another object of my invention is to achieve the just-mentioned result automatically with the aid of means of utmost simplicity that can readily be mounted on a winding machine or on the individual winding stations of a muiti-station machine.
  • I provide a winding machine of the above-mentioned type with a normally inactive yarn severing device, and mount the device in the yarn path at a location which, with respect to the yarntravel direction, lies behind the position where the gripping means of the yarn-end seizing equipment engage and commence entraining the end of the yarn coming from the supply coil.
  • This seizing position of the gripper is the one at which the yarn of the supply coil becomes at tached to the gripper shortly before the gripper conveys the yarn and to a ready position, preferably toward the above-mentioned knotter.
  • the yarn severing device may be mounted on any desired point of the yarn path between the just-mentioned seizing position and the ready position.
  • the severing device may be mounted directly on the gripper itself or on other components of the winding machine such as the yarn tensioner, yarn cleaner or slub-catcher, and other yarn guiding or yarn clamping members.
  • the normally inactive severing device is provided with control means so as to become operative to sever the yarn down to a given length, in proper correlation to the operation of the above-mentioned yarn-end gripper means which, as mentioned, enter into action in response to yarn breakage or generally in response to absence of yarn on the path between supply coil and take-up spool.
  • a suction nozzle behind the last yarn-clamping location and behind the yarn severing device is then available for eliminating the length of yarn severed from the yarn supply by operation of the severing device.
  • a suction nozzle does not satisfactorily operate in all cases. It may happen that the length of yarn sucked into the nozzle becomes clamped or is drawn too far into the nozzle so that it can no longer be pulled out of the nozzle by the gripper. The gripper then carries double threads to the knotter as in any other case where the broken thread has become caught at a machine part. By virtue of the present invention, such faults'are no longer encountered.
  • the severing device is preferably designed as a cutting mechanism with a fixed or movable cutting edge, as a scissors-type mechanism; or the severing operation may be performed by burning the yarn, such as by an electrically actuated in the event the winding operation becomes interrupted, for example by response of the conventional yarn feeler or guard to absence of yarn due to breakage or due to depletion of the supply coil.
  • such automatic control in dependence upon occurrence of winding trouble or operation of the yarn feeler is obtained by making the actuation of the severing device dependent upon the position of the yarn-end seizing gripper. Since the travel of the gripper is controlled by a yarn feeler or similar detector responsive to absence of yarn, the severing device is then also operated in response to such winder trouble as well as in the desired correlation to the movement of the gripper.
  • PEG. 1 is a lateral elevation of the yarn severing device in conjunction with a schematically illustrated winding machine
  • FIG. 2 is a plan view of the severing device, the view being taken in the direction of the arrow marked Il in FIG. 1.
  • the illustrated machine comprises a rigid frame structure 1 in which the shaft 2b of a yarn guiding drum 2 is journalled.
  • a journalling bracket 4 is pivoted at 4b to the structure it and supports a rotatable take-up spool 3.
  • the yarn F is supplied by a yarn-supply coil 12 here shown as a spinning cop.
  • the coil 12 is seated on a peg 120 of a member 12b-which is pivotally mounted on the structure 1 and assumes the illustrated position during the winding operation.
  • the yarn passes from supply coil 12 over a yarn'guiding member 13 and through a yarn tensioner 14 2; seeking and knotting operation described below, the spool 3' is somewhat lifted from the drum 2 and at standstill, or it may rotate in the unwinding direction'while yarn from the spool is being pulled toward the knotter.
  • the guiding drum 2 is provided in. the conventional manner with a yarn guiding groove that extends around as Well as longitudinally of the drum and forms a curve'closed upon itself so that the yarn passing through the groove onto the spool 3 is being reciprocated along the spool in order to form a cross-wound package.
  • U.S. Patent 2,969,198 or the copending application-of Fiirst et al. Serial No. 203,540, filed June 19, 1962, both assigned to the assignee of the present invention.
  • the machine is provided with a yarn seeking device of the above-mentioned kind.
  • the gripper means of the device comprises two grippers 5 and 6 both designed as suction tubes for cooperation with a knotter 7 mounted on the frame structure 1.
  • the suction tube 5 has a tubular portion 5b pivoted to the structure 1 to permit rotary movement of gripper 5. During such movement, the
  • tubular pivot portion 6b connected to the same source of' suction.
  • gripper tube 6 its nozzle opening 6 moves on a circle shown by a dot-and-- dash line 60.
  • the two grippers 5 and 6 are controlled to move to the respective active positions 5d and 6d shown by dash-and-dot lines.
  • the suction opening of gripper 6, now in position 6d inducts the yarn end from the supply coil 12.
  • the two yarn ends, thus gripped by suction are thereafter conveyed to the knotter 7 as grippers 5 and 6 move to the illustrated full-line positions. Thereafter the knotter 7 is active to tie the yarn I ends together, whereafter the winding; operation can be resumed.
  • a pin 16 fastened to the gripper 6- hits upon the arm 17 of a lever which is pivotally mounted on the supporting bracket 15, of the yarn cleaner 15.
  • the pin 16 then turns the lever arm 17 counterclockwise in opposition to the force of a return spring 19.
  • the arm 18 of the. lever is linked to a cutter member 20 which is pivotally rotatable about a fixed pin 21 and forms a leg of a scissorsmechanism whose second'leg 22 is firmly joined with the supporting bracket 15'.
  • the yarn F, located betweenthe two legs of'the scissors mechanism, is thus cut;olf,.and the suction tube 10 then eliminates the residual portion F. 1
  • the nozzle opening of suction gripper 6,.n0w reaching the position 6d is effective to entrain the shortened yarn'end and to carry it to the knotter 7. Sincethe free yarn end, now extending onlyfrom the location of the nozzle opening 2 to the cutting. location, is very short, this entire lengthis readily sucked into the ripper 6 so thatonly a single thread is conveyed to the knotter under all circumstances, thus reliably preventing the formationof doublethrums or loops at the resulting knot.
  • the above-mentioned yarn feeler which releases the. operation Of. the grippers 5, 6, andof the'severing deyiceini response to the disappearance of yarn along the path is schematically shown at 26; It consists of'a spring-biased lever pivoted at 25d to the machine frame structure 1 and normally resting against the yarn F as long as the yarn is being wound and hence under suflicient tension between the yarn cleaner 15 and the yarn guiding drum 2. Upon yarn breakage or depletion of supply coil 12, the yarn feeler 25 will deflect clockwise. This deflecting motion releases the above-described operation of the gripper means and of the severing device.
  • the feeler-controlled means for actuating the grippers may be identical with those described and illustrated in U.S.'Patents No.
  • a yarn-coil winding .m-achine having take-up spool means, supply-coil holderv means, yarn guiding means defining a yarn path from said spool means to said holder means, and two grippers movable in response to absence of yarn on said path for seizing the yarn ends and conveying them from the 1 spool means and the supply coil respectively, in combination, a yarn severing device mounted on said machine near said path at a place which, relative to the yarn-travel direction, lies behind the yarn-end seizing location of the gripper for seizing the yarn end of the supply coil, said severing device being normally inactive and being actuable to sever the yarn to prevent entrainment of a double thrumby said latter gripper, and control means connected with. said severing device and operably responsive to the movement of said gripper toward said yarn-end seizing location for actuating said severing device. to cut the sup-ply coil yarn end shortly prior to yarn seizureby said gripper
  • a yarn-coil winding machine having take-up spool means, supply-coil holder means, yarn guiding means defining a yarn path from said spool means to said holder means and comprising a yarn clamping member for retaining the yarn end from the supply coil in the event of yarn breakage, a knotter, and two grippers movable in response to yarn breakage for entraining the respective yarn ends from the spool means and the supply coil to said knotter, one of said grippers having a yarnend seizing location on said path between said holder and said clamping member for seizing the yarn-end from the supply coil, in combination, a yarn severing device comprising a normally inactive cutter mechanism engageable, when active, with the yarn for cutting the yarn end to a given length, said mechanism being mounted on said machine in proximity of said clamping member and behind said member in the yarn-travel direction, and control means connected with said mechanism and operably responsive to the movement of said one gripper toward said yarn-end seizing loaction for actuating said cutter mechanism to
  • a yarn-coil Winding machine having take-up spool means, supply-coil holder means, yarn guiding means defining a yarn path from said spool means to said holder means and comprising a yarn clamping member for retaining the yarn end from the supply coil in the event of yarn breakage, a knotter, and two grippers movable in response to yarn breakage for entraining the respective yarn'ends from the spool means and the supply coil to said knotter, one of said grippers having a yarnend seizing location on said path between said holder and said clamping member for seizing the yarn-end from the supply coil, in combination, a yarn severing device comprising a normally inactive cutter mechanism engageable, when active, with the yarn for cutting the yarn end to a given length, said mechanism being mounted on said machine in proximity of said clamping member and behind said member in the yarn-travel direction, and control means comprising a movable member for actuating said cutter mechanism, and said one gripper having a structure engageable with said member during
  • a yarn-coil winding machine having take-up spool means, supply-coil holder means, yarn guiding means defining a yarn path from said spool means to said holder means and comprising a yarn clamping member for retaining the yarn end from the supply coil in the event of yarn breakage, a knotter, and two grippers movable in response to yarn breakage for entraining the respective yarn ends from the spool means and the supply coil to said knotter, one of said girppers having a yarnend seizing location on said path between said holder and said clamping member for seizing the yarn-end from the supply coil, in combination, a yarn severing device comprising a normally inactive cutter mechanism comprising a normally open pair of scissor legs engageable, when active, with theyarn for cutting the yarn end to a given length, said mechanism being mounted on said machine in proximity of said clamping member and behind said member in the yarn-travel direction, and control means having a movable member linked with one of said scissor legs

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Winding Filamentary Materials (AREA)
  • Basic Packing Technique (AREA)
US251330A 1962-01-13 1963-01-14 Coil winding machine with yarn severing device Expired - Lifetime US3165275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER0031867 1962-01-13

Publications (1)

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US3165275A true US3165275A (en) 1965-01-12

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US251330A Expired - Lifetime US3165275A (en) 1962-01-13 1963-01-14 Coil winding machine with yarn severing device

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US (1) US3165275A (ja)
BE (1) BE627039A (ja)
CH (1) CH397495A (ja)
DE (1) DE1560527A1 (ja)
GB (1) GB1035361A (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472108A (en) * 1967-09-12 1969-10-14 Leesona Corp Yarn clearer
JPS5512818A (en) * 1978-07-04 1980-01-29 Murata Mach Ltd Pneumatic yarn ending
JPS5522033A (en) * 1978-07-27 1980-02-16 Murata Mach Ltd Pneumatic ending
US4202506A (en) * 1976-05-03 1980-05-13 W. Schlafhorst & Co. Device for monitoring thread travel
US5188304A (en) * 1987-02-27 1993-02-23 Savio S.P.A. Device and process for the handling and the control of the thread on a coner machine during the operation of spool change and of thread joining
US5322228A (en) * 1991-05-20 1994-06-21 Sumitomo Electric Industries, Inc. Method for screening optical fiber and apparatus for carrying out method
EP0659674A1 (en) * 1993-12-24 1995-06-28 MENEGATTO S.r.l. Device for cutting yarn when inserting yarn on a yarn-holder cop in automated winding apparatus
US20170321351A1 (en) * 2016-05-06 2017-11-09 Rieter Ingolstadt Gmbh Method for Handling a Thread End and a Winding Station

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733870A (en) * 1951-01-09 1956-02-07 Furst

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733870A (en) * 1951-01-09 1956-02-07 Furst

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472108A (en) * 1967-09-12 1969-10-14 Leesona Corp Yarn clearer
US4202506A (en) * 1976-05-03 1980-05-13 W. Schlafhorst & Co. Device for monitoring thread travel
JPS5512818A (en) * 1978-07-04 1980-01-29 Murata Mach Ltd Pneumatic yarn ending
JPS5648431B2 (ja) * 1978-07-04 1981-11-16
JPS5522033A (en) * 1978-07-27 1980-02-16 Murata Mach Ltd Pneumatic ending
JPS5649828B2 (ja) * 1978-07-27 1981-11-25
US5188304A (en) * 1987-02-27 1993-02-23 Savio S.P.A. Device and process for the handling and the control of the thread on a coner machine during the operation of spool change and of thread joining
US5322228A (en) * 1991-05-20 1994-06-21 Sumitomo Electric Industries, Inc. Method for screening optical fiber and apparatus for carrying out method
US5441215A (en) * 1991-05-20 1995-08-15 Sumitomo Electric Industries, Ltd. Slitted winding wheel for optical fiber
US5472128A (en) * 1991-05-20 1995-12-05 Sumitomo Electric Industries, Ltd. Method and apparatus for sucking an optical fiber
AU669795B2 (en) * 1991-05-20 1996-06-20 Sumitomo Electric Industries, Ltd. An apparatus for sucking an optical fiber
EP0659674A1 (en) * 1993-12-24 1995-06-28 MENEGATTO S.r.l. Device for cutting yarn when inserting yarn on a yarn-holder cop in automated winding apparatus
US5549254A (en) * 1993-12-24 1996-08-27 Menegatto S.R.L. Device for cutting yarn when inserting yarn on a yarn-holder cop in automated winding apparatus
US20170321351A1 (en) * 2016-05-06 2017-11-09 Rieter Ingolstadt Gmbh Method for Handling a Thread End and a Winding Station
US10465312B2 (en) * 2016-05-06 2019-11-05 Rieter Ingolstadt Gmbh Method for handling a thread end and a winding station

Also Published As

Publication number Publication date
DE1560527A1 (de) 1969-11-27
GB1035361A (en) 1966-07-06
BE627039A (ja)
CH397495A (de) 1965-08-15

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