US3595491A - Method and apparatus for securing the end or tail of a textile strand to a wound package - Google Patents

Method and apparatus for securing the end or tail of a textile strand to a wound package Download PDF

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Publication number
US3595491A
US3595491A US877181A US3595491DA US3595491A US 3595491 A US3595491 A US 3595491A US 877181 A US877181 A US 877181A US 3595491D A US3595491D A US 3595491DA US 3595491 A US3595491 A US 3595491A
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Prior art keywords
thread
package
needle
guide
pointed end
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Expired - Lifetime
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US877181A
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English (en)
Inventor
Archille O Bourque
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMERICAN AND EFIRD THREAD MILLS Inc
AMERICAN AND EFIRD THREAD MILLS
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AMERICAN AND EFIRD THREAD MILLS
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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
    • B65H65/00—Securing material to cores or formers
    • B65H65/005—Securing end of yarn in the wound or completed package
    • 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

  • the usual method of tucking the thread tail between outer thread layers of a wound package is by manual use of a latch needle of the type used in many circular knitting machines, and wherein the needle is thrust through outer layers of the package by hand, the thread tail is looped through the hook of the needle, and then the operator withdraws the needle from the package, and then from the thread tail, to leave the same tucked between adjacent thread layers of the package.
  • Apparatus for performing such tucking operation automatically on a winding machine is disclosed in a German U.S. Pat. No.
  • the method according to the instant invention comprises guiding a thread or yarn strand from a source through the eye of a needle or other elongate pointed thread guide to a rotating support while traversing the needle parallel to the support to form a wound package thereon, stopping rotation of the support and the package when the package has reached a predetermined diameter, then imparting a longitudinal forward thrust to the needle while causing the pointed end of the needle, its eye, and the thread extending through the eye to penetrate the package and project through outer thread layers of the package, then withdrawing the needle from the package while leaving a loop of the thread tucked firmly between adjacent layers of the thread on the package, and then parting the thread adjacent the needle.
  • the apparatus comprises a rotatable package support, and a traversing thread guiding means including a needle or other pointed thread guide having an eye therethrough through which thread passes from a source to the support during the winding of a thread package on the support.
  • Means are provided responsive to the building of the package to a predetermined diameter, for stopping rotation of the support and the package thereon and then imparting a longitudinal forward thrust to the needle toward and into the package between adjacent outer layers of the thread on the package, and then for retracting the needle from the package.
  • the path and range of movement of the needle during its longitudinal thrust and subsequent retraction are such as to leave a loop of the thread extending from the needle tucked between the adjacent outer thread layers of the package so that, upon subsequent parting of the thread ad- 5 jacent the needle, the thus formed thread tail is firmly secured to the body of the package.
  • the needle is provided with a longitudinally extending groove in its surface facing oppositely from the direction of travel of the thread through the needle and extending rearwardly from the eye of the needle.
  • Such groove accommodates the thread therein and substantially shields the thread from the outer thread layers of the package as the tucking operation is being performed so that the thread moves readily along the groove during insertion of the needle into the package, and so that the needle will readily move relative to the thread during retrac tion of the needle, thereby preventing the needle from pulling the tucked loop of thread, then clamped between the outer thread layers of the package, back out of the package.
  • FIG. 1 is a schematic perspective view of an illustrative embodiment of the-thread guiding and tucking apparatus of this invention applied to a conventional winding machine;
  • FIG. 3 is a rear elevation looking at the right-hand side of FIG. 2;
  • FIG. 5 is a view similar to FIG. 4, but showing the thread guide occupying a withdrawn position after having had its pointed end thrust through the package as in FIG. 4, and showing the loop of thread tucked firmly between outer thread layers of the package;
  • FIG. 6 is an enlarged longitudinal vertical sectional view through the needle embodying the pointed thread guide of this invention.
  • FIG. 7 is an enlarged transverse sectional view through the thread guiding needle taken substantially along line 7-7 in FIG. 6;
  • FIG. 8 is a view similar to FIGS. 2, 4 and 5 showing the filled package after being doffed, with clamping and cutting means located between the thread guide and the doffed package.
  • the apparatus for carrying out the method of this invention is capable of adaptation to many different types of winding machines, but which are of the general type including one or more thread guides and an associated rotatable support for supporting thread carriers thereon, and wherein relative traversing movement is effected between the thread guide or guides and the rotatable support during winding of thread on the support.
  • Exemplary winding machines of this general type are disclosed in U.S. Pat. Nos. 1,328,196; 2,449,328; 2,763,443; and 3,216,667.
  • the apparatus of this invention is shown in association with the automatic-winding mechanism of a winding machine of the type shown in U.S. Pat. No. 2,676,763, issued Apr. 27, 1954 to H. T.
  • idler spindle shaft 1 1 Upon an empty carrier subsequently being positioned between shafts l1, l2, idler spindle shaft 1 1 is extended to engage and move the carrier against the other spindle shaft 12.
  • a suitable drive mechanism 14 (FIG. 1) imparts rotation to driven spindle shaft 12 and thus to the active carrier and idler spindle shaft 11 to initiate a winding operation.
  • Drive mechanism 14 also is operatively connected to a traversing means which may include a helical traverse cam 15 rotatable in casing 13, and which is engaged by a follower 16a on a traversing shaft 16 for imparting reciprocatory traversing movement thereto in timed relation to rotation of carrier 14 and its package P. Since the operation of shafts 11, 12 and 16 and the means for efiecting such operation are well known, a further detailed illustration and description thereof is deemed unnecessary.
  • the width and depth of groove 22 in needle 20 should be such as to loosely accommodate a length of the thread therewithin so that the thread is free to travel along the groove without being clamped against the needle by an adjacent layer or layers of thread during insertion and withdrawal of the needle relative to the package P.
  • Suitable tensioning means 25 (FIG. 1) is provided between thread source 23 and thread guiding needle 20 for maintaining the thread under normal tension during the winding operation, and which is operable to relieve tension in the thread during the tucking and dofflng operations.
  • tensioning means 25 may include a pair of tension discs 25a of well known type such as are disclosed in FIGS. 5 and 6 of U.S. Pat. No. 1,853,020, dated Apr. 5, 1932.
  • the discs 250 are adjusted for the desired tension by a spring 25b and a nut 25c.
  • a suitable automatic tension-relieving means or wedge 26, normally spaced from discs 25a, is moved between discs 25a to separate the same and then thereby relieve tension in the thread Tduring each tucking operation, as will be later described.
  • bracket 30 includes an upper elongate body 31 which may be made from metal, plastic or any suitable material, and which extends traversely with respect to traversing shaft 16, and in which needle 20 is mounted for longitudinal movement.
  • the body 31 of bracket 30 has a longitu dinally extending passage or cavity 32 therein which is open along one side thereof, but which terminates short of the forward end of body 31, with the front wall of the body 31 being slidably penetrated by needle 20.
  • An arm 40 which is preferably integral with the body 31 of bracket 30, extends downwardly from adjacent the front end of body 31 and has a hub 41 thereon (FIG. 3) which surrounds traversing shaft 16.
  • the hub 41 of bracket 30 and a hub 42 of rocker arm 37 are mounted on an eccentric sleeve 44 loosely penetrated by traversing shaft 16. It should be noted that the axis of traversing shaft 16 is offset relative to the axis of eccentric sleeve 44.
  • the hub 41 of thread guide bracket 30 is adjustably secured on sleeve 41, as by a setscrew 45, and the hub 42 of rocker arm 37 is freely pivotal on sleeve 44.
  • restraining collars 46, 47 are suitably secured on traversing shaft 16 in sliding engagement with opposite ends of eccentric sleeve 44 to prevent relative axial movement between bracket 30 and rocker arm 37 during reciprocation of traversing shaft 16.
  • Hub 41 serves to space rocker arm 37 from the arm 40 of thread guide bracket 30, and proximal surfaces of these arms are provided with respective abutments 50, 51 (FIGS. 2, 4 and 5) thereon which engage opposite ends of a compression spring 52 therebetween.
  • Spring 52 normally urges or biases rocker arm 37 rearwardly relative to bracket 30 against an adjustment screw or stop carried by an outwardly projecting rear portion or cover 53 of body 31.
  • a suitable wear-resistant nose member 54 may be provided on the forward end of the body 31 of bracket 30 and below needle 20 for engagement with the periphery of the package P during the winding thereof.
  • the major portion of the weight of bracket 30 is disposed forwardly of the vertical plane of shaft 16 so as to overbalance bracket 30 and rocker arm 37 in a forward direction thus result in the wear resistant nose member 54 resting against the periphery of the package P throughout the winding thereof.
  • a suitable limiting rod or abutment 55 may be provided forwardly of thread guide bracket 30 to limit its downward movement, if necessary, during the doffing of filled package carriers and donning of empty package carriers.
  • Conventional or other suitable means may be provided for automatically stopping traversal of needle 20 parallel to thread package P and for stopping rotation of spindle shafts ll, 12 and package P upon a predetermined amountofthread 7' being wound on the then active carrier 10.
  • a clutch 14a which may be of the electromagnetic type. Clutch 14a is connected to a source of electrical energy 60 through a manually operable master switch 61 and a normally closed drive control switch 62 to cause drive mechanism 14 to drive spindle shaft 12 and traverse cam 15 during the winding of thread on the active carrier 10.
  • a measuring means 63 which may be in the form of an automatically or manually resetable yardage counter, is operatively associated with drive mechanism 14.
  • a lobe or projection on a drive control cam 63a operated by counted 63, will engage and open drive control switch 62 to break the circuit to clutch 14a and thereby interrupt the drive connection from drive mechanism 14 to driven spindle shaft 12 and to traverse cam 15, thus stopping the winding operation.
  • a manual override switch 64 in parallel circuit with drive control switch 62, may be closed for manual control of clutch 140 when desired.
  • a representative embodiment of needle operating means comprises an activator broadly designated at 66 and including an elongate bar 67 disposed closely adjacent and rearwardly of rocker arm 37.
  • Bar 67 extends substantially parallel with traversing shaft 16 and is of such length that when bar 67 is moved forwardly, it will engage and impart forward movement to rocker arm 37 and thereby impart corresponding forward movement to needle 20 regardless of the position that the bracket 30 and arm 37 may occupy upon completion of the winding of the package P.
  • Such movement of bar 67 is cf fected upon the rotation of the package P and the traversal of thread guide bracket 30 and rocker arm 37 being terminated.
  • Activator bar 67 is carried by a lever 70 pivotally mounted, as at 71, on a stationary part of the winder. Suitable means are provided for moving bar 67 forwardly to engage and impart a forward stroke to arm 37. It is important to note that thread guide bracket 30 not only maintains needle 20 in an attitude substantially perpendicular to the axis of the rotatable support embodied in spindle shafts l1, 12 but it also is operable to align needle 20 in substantially tangential relationship to the periphery of thread package P upon a predetermined amount of thread being wound on the package.
  • Thread guide bracket 30 is arranged to guide the point of needle 20, during longitudinal reciprocation thereof, along a chord line of the package closely adjacent the periphery of the package, but located closer to the axis of the package than that of the periphery of the package.
  • Such alignment of needle 20 may be readily established in accordance with the diameter of the filled thread package to be wound by loosening setscrew 45 (FIGS. 2 and 3) and manually angularly adjusting thread guide bracket 30 about and relative to eccentric sleeve 44, and then tightening setscrew 45, it being noted that such adjusting will raise and lower the needle 20 relative to package P and will also change the angular position of needle 20 relative to package P.
  • the position of thread guiding needle 20 relative to the filled or completely wound package P, and the extent of the forward stroke of actuator bar 67, are such that the point of needle 20 and its eye 21 move in a substantially tangential path with respect to the completely wound package P and between adjacent outer layers of thread thereon, with the point and eye 21 of the needle being thrust through and beyond the corresponding layers. ln so doing, the eye of needle 20 moves relative to the thread as it pulls the then untensioned thread from the source in the form of a loop.
  • the thread at its point of ingress 72 into package P, lays in the groove 22 of needle 20 so that the thread is not unduly ten sioned as it is being drawn through the passage or tunnel being formed by the needle 20 between adjacent layers of thread on package P during ingress of the needle through package P.
  • the eye 21 of needle 20 is thrust beyond the pierced portion of package P sufficiently to expose a substantial bight 73 of the thread loop beyond the pierced portion of package P, as shown in FIG. 4.
  • actuator bar 67 moves rearwardly, permitting spring 52 to return rocker arm 37 rearwardly, thereby to retract and entirely withdraw needle 20 from package P, as shown in FIG. 5.
  • the needle 20 prevents excessive binding of the thread against needle 20
  • the needle readily moves rearwardly relative to the looped portion of the thread, and the thread loop is progressively clamped between adjacent layers of thread previously wound on the package, as the needle withdraws from the package, thus leaving a tucked loop of thread firmly secured in the package.
  • Any suitable means may be provided for parting the thread adjacent needle 20 following each tucking operation.
  • a representative embodiment of suitable thread parting means will be later described.
  • the means for imparting movement to activator 66 may comprise a fluid-operated ram broadly designated at and including a cylinder 81 having a piston 82 therein which is urged in a forward direction by a suitable spring 83.
  • Piston 82 carries a piston rod 84 whose forward portion is pivotally connected, as at 85, to a lower portion of lever 70.
  • a conduit 86 connects the front end of cylinder 81 to one side of a suitable electrically operable four-way valve 87 whose core 90 normally is biased to a first position by a suitable spring 91, and whose core may be moved to a second or active position as by means of a solenoid 92.
  • One side of solenoid 92 is connected to the source of electrical energy 60 through master switch 61, and the other side of solenoid 92 is connected to one side of a normally closed needle-retracting switch 94 secured on the body 31 of thread guide bracket 30.
  • Switch 94 includes an actuating member 95 positioned forwardly of and in the path of arm 37 so that, as arm 37 moves forwardly, it engages actuating member 95 to change the state of switch 94 upon needle 20 being thrust the desired distance into the package P and to thereby break the circuit to solenoid 92.
  • actuating member 95 positioned forwardly of and in the path of arm 37 so that, as arm 37 moves forwardly, it engages actuating member 95 to change the state of switch 94 upon needle 20 being thrust the desired distance into the package P and to thereby break the circuit to solenoid 92.
  • spring 52 upon switch 94 breaking the circuit to solenoid 92, spring 52 then returns nee dle 20 to the retracted or withdrawn position with respect to the package P.
  • ln series circuit with needle-retracting switch 94 and solenoid 92 is a thread guide control switch or needle control switch which is normally opened, but which, upon the opening of drive control switch 62 by the counter 63, is moved to closed position by means of a lobe or projection on a suitable cam 101, driven by counter 63.
  • switch 100 is closed.
  • a suitable time-delay-relay 102 is inter posed in the electrical circuit between switch 100 and solenoid 92 so that, assuming that needle-retracting switch 94 is closed, solenoid 92 will be energized at a predetermined time following the deenergization of the clutch 14a of drive mechanism 14.
  • valve 87 Upon energization of solenoid 92, the core 90 of valve 87 is positioned to direct fluid pressure from a suitable source 105 through conduit 86 into the front end of cylinder 8!. This causes piston 82 and piston rod 84 to move from left to right and thereby impart a forward stroke to activator bar 67 which, in turn, imparts forward thrust to needle 20 in the manner heretofore described.
  • counter 63 may be reset manually or automatically, in a well-known manner, thus returning switch 100 to open position and returning switch 62 to closed position to initiate the winding of a succeeding package P.
  • Needle-retracting switch 94 may be of a type which will close automatically upon switch 100 being returned to the closed position, or needle retracting switch 94 may be in the form of a toggle switch whose actuating member 95 may be returned to closed position manually after the thread guide control switch 100 is opened.
  • tension relieving means or wedge 26 is pivotally mounted on a fixed part of the winder, and has the armature or plunger of a solenoid 104 connected thereto.
  • the coil of solenoid 104 may be in series circuit between timedelay-relay 102 and needle-retracting switch 94.
  • solenoid 104 will be activated as each forward thrust of needle is initiated.
  • solenoid 104 Upon being activated, solenoid 104 will move wedge 26 between tension discs a to separate them and thereby to relieve the tension in the thread between the source 23 and thread guiding needle 20.
  • the thread 'I and necdle 20 may move freely relative to each other during the reciprocal tucking operation of needle 20.
  • a suitable delay means may be provided to maintain energization of tension relieving solenoid 104 for a predetermined period of time following withdrawal of needle 20, so that, for example, the doffing of a filled package and donning of an empty carrier may be effected before discs 25a resume application of tension to thread 7.
  • Such delay means need not be used in all instances however.
  • any suitable means may be provided for parting the thread adjacent needle 20 following each tucking operation.
  • a thread clamping and cutting means broadly designated at 120 and spaced below the level of spindle shaft 12 and above the previously doffed package P now in container C.
  • the thread clamping and cutting means may include vertically spaced upper and lower pairs of grippers of clamping jaws 121, 122 and 123, 124, with a pair of cutting blades 125, 126 spaced between the pairs of clamping jaws 121,122and 123,124.
  • suitable means actuates the cutting blades 125, 126 to sever the thread between the clamping jaws. At least the upper clamping jaws 121, 122 continue to clamp the thread until a new empty carrier is properly located and held between the spindle shafts 11, 12. The thread then is retained against the end of the empty carrier by the head of the driven spindle shaft 12. At about thetime that the succeeding winding operation is initiated; i.e., at about the time that the new carrier 10 starts rotating, both the upper and lower clamping jaws release the thread therefrom so as to release the previously wound package and so that the thread from needle 20 will be wound about the new carrier 10 as it rotates in a clockwise direction in 1 108. 1 and 2. Any suitable means, not shown, may be provided for subsequently withdrawing the thread clamping and cutting means out of the vertical plane of a succeeding completed thread package so as not to obstruct the dropping of the succeeding completedthread package into container C. As is usual, any suitable means, not shown, may be provided for subsequently withdrawing the thread
  • a method which includes moving the thread package with the loop of thread tucked therein away from the thread guide while causing the moving thread package to pull a length of thread through the thread guide following the withdrawal of the pointed end of the thread guide from the package, then parting the thread at a point between the thread guide and the thus moved package, then positioning another carrier adjacent the thread guide while retaining the end of the thread then extending from the thread guide against one end of said other carrier, and then rotating said other carrier to wind a number of layers of thread thereon to form a succeeding thread package.
  • said thread guide is provided with an eye adjacent its pointed end for guiding the thread therethrough, said thread guide also having an elongate longitudinally extending groove in that surface of said guide facing away from the carrier and opposite from the direction of travel of the thread through said guide, said groove extending rearwardly from said eye of said guide, and the width and depth of said groove accommodating the thread therein while the pointed end of said guide is being thrust through and withdrawn from the package to prevent the thread from being clamped against said thread guide by the outer thread layers during movement of the pointed end of said guide between such outer thread layers.
  • said thread guide comprises an elongate needle, means supporting said needle for longitudinal movement forwardly toward and rearwardly from said carrier and its package, traversing means for traversing said. needle supporting means substantially parallel to said rotatable support, said means for stopping rotation of said support including means for stopping said traversing means, and said means for thrusting and withdrawing the pointed end of said thread guide including means responsive to said predetermined amount of thread being wound on said carrier for imparting a reciprocatory forward and rearward motion to said needle.
  • said needle supporting means comprises a bracket in which said needle is guided for longitudinal movement therein, said means for imparting a longitudinal reciprocatory motion to said needle including actuator means operatively associated with said needle and movable relative to said bracket, and said responsive means including means for imparting a reciproeatory motion to said actuator means and thereby to move said needle forwardly and rearwardly in succession relative to the package.
  • Apparatus according to claim 13 including a shaft positioned adjacent and extending substantially parallel with said rotatable support, said needle supporting means comprising a bracket pivotally mounted on said shaft and having abutment means thereon normally resting against the package being wound,.means mounting said needle for longitudinal movement relative to said bracket, an actuator member movably mounted adjacent said bracket and engaging said mounting means, yieldable means normally urging said needle and said actuator member to a rearward position relative to said bracket, and said means responsive to a predetermined amount of thread being wound on the package including means for imparting a forward movement to and then releasing said actuator member whereby a reciprocatory forward and rearward motion is imparted to said needle.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Sewing Machines And Sewing (AREA)
  • Winding Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US877181A 1969-11-17 1969-11-17 Method and apparatus for securing the end or tail of a textile strand to a wound package Expired - Lifetime US3595491A (en)

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US87718169A 1969-11-17 1969-11-17

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US3595491A true US3595491A (en) 1971-07-27

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US877181A Expired - Lifetime US3595491A (en) 1969-11-17 1969-11-17 Method and apparatus for securing the end or tail of a textile strand to a wound package

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US (1) US3595491A (es)
JP (1) JPS4837051B1 (es)
ES (2) ES385524A1 (es)
GB (1) GB1287990A (es)
NL (1) NL7016663A (es)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5332170A (en) * 1991-02-22 1994-07-26 Superba Method and device for fastening the yarn end of a bobbin
US6419283B1 (en) * 2000-10-24 2002-07-16 Belmont Textile Machinery Company Automatic knot-tying machine
US6484961B2 (en) * 1999-12-29 2002-11-26 Superba Machine for tucking, labelling and palletizing spools at the outlet of a winder or any other machine producing spools of thread and process practiced by this machine
US20030111841A1 (en) * 2001-12-14 2003-06-19 Superba (Societe Anonyme) Process and device for knotting a yarn on a spool
US20040007636A1 (en) * 2001-12-18 2004-01-15 Sergio Gualchierani Device and method for anchoring the terminal turns of the yarn to a cop of yarn
CN101707945B (zh) * 2007-06-21 2012-08-01 Ssm萨罗瑞士麦特雷有限公司 丝线缚紧装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE190417C (es) *
GB190209357A (en) * 1902-04-23 1903-04-23 Edmund Norbury Baines Improvements in Balling Machines for Yarn, Thread, Twine & the like.
FR421819A (fr) * 1910-10-25 1911-03-06 Albert Charles Boitel Dispositif pour arreter le bout du fil des canettes dans les machines à enrouler les bobines des machines à broder
US1527751A (en) * 1924-02-07 1925-02-24 Firm Vogtlandische Maschinenfa Device for fixing the free thread ends of the spools of embroidery machines
US2163578A (en) * 1935-06-06 1939-06-27 American Thread Co Winding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE190417C (es) *
GB190209357A (en) * 1902-04-23 1903-04-23 Edmund Norbury Baines Improvements in Balling Machines for Yarn, Thread, Twine & the like.
FR421819A (fr) * 1910-10-25 1911-03-06 Albert Charles Boitel Dispositif pour arreter le bout du fil des canettes dans les machines à enrouler les bobines des machines à broder
US1527751A (en) * 1924-02-07 1925-02-24 Firm Vogtlandische Maschinenfa Device for fixing the free thread ends of the spools of embroidery machines
US2163578A (en) * 1935-06-06 1939-06-27 American Thread Co Winding machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5332170A (en) * 1991-02-22 1994-07-26 Superba Method and device for fastening the yarn end of a bobbin
US6484961B2 (en) * 1999-12-29 2002-11-26 Superba Machine for tucking, labelling and palletizing spools at the outlet of a winder or any other machine producing spools of thread and process practiced by this machine
US6419283B1 (en) * 2000-10-24 2002-07-16 Belmont Textile Machinery Company Automatic knot-tying machine
US6641181B2 (en) * 2000-10-24 2003-11-04 Belmont Textile Machinery Co., Inc. Automatic knot-tying machine
US20030111841A1 (en) * 2001-12-14 2003-06-19 Superba (Societe Anonyme) Process and device for knotting a yarn on a spool
US6964437B2 (en) * 2001-12-14 2005-11-15 Superba (Societa Anonyme) Process and device for knotting a yarn on a spool
US20040007636A1 (en) * 2001-12-18 2004-01-15 Sergio Gualchierani Device and method for anchoring the terminal turns of the yarn to a cop of yarn
CN101707945B (zh) * 2007-06-21 2012-08-01 Ssm萨罗瑞士麦特雷有限公司 丝线缚紧装置

Also Published As

Publication number Publication date
ES385524A1 (es) 1973-10-01
DE2054131A1 (de) 1971-05-27
GB1287990A (es) 1972-09-06
ES413149A1 (es) 1976-01-16
DE2054131B2 (de) 1975-06-19
JPS4837051B1 (es) 1973-11-08
NL7016663A (es) 1971-05-19

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