US3727394A - Apparatus for preventing the curling and looping of the yarn in a traveler-ring twisting machine - Google Patents

Apparatus for preventing the curling and looping of the yarn in a traveler-ring twisting machine Download PDF

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Publication number
US3727394A
US3727394A US00094485A US3727394DA US3727394A US 3727394 A US3727394 A US 3727394A US 00094485 A US00094485 A US 00094485A US 3727394D A US3727394D A US 3727394DA US 3727394 A US3727394 A US 3727394A
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United States
Prior art keywords
thread
spindle
arm
weight
sensor
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US00094485A
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English (en)
Inventor
A Greive
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.)
Hamel GmbH
Hamel Zwirnmaschinen GmbH
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Hamel GmbH
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/10—Tension devices
    • D01H13/104—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/36—Floating elements compensating for irregularities in supply or take-up of material
    • 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

  • a thread-twisting apparatus comprises a supply device 'for feeding a thread to a thread-twisting assembly in- 3a .547/ x v3, we C PATENTEDAPR 1 7x975 v 27, 3 4
  • My present invention relates to a twisting or twining machine in which the yarn is paid off or deposited upon a spool of a spindle with the aid of a traveler ring and, more particularly, to a system in a twisting or twining apparatus for limiting the formation of curls or loops.
  • the thread sensor has a labile or unstable condition at which it applies only a limited tensioning force to the yarn which is readily overcome by the normal thread (balloon) tension but automatically tends to move into a stable position at which its tensioning force is sufficient to take up any loosening of the thread developing upon standstill of the spindle as noted earlier.
  • the thread sensor is rotatably mounted upon a threadguide rod over which the thread or yarnpasses from the feed rollers, preferably through an arch excess of aquadrant of this rod while the sensor is rotatably mounted upon the latter and is formed with a threadguide eye which, in its unstable state, lies along a tangent to the rod and in alignment with the guide eye of the twisting assembly.
  • the sensor may have a weight counterbalancing the eye-carrying shank v and so disposed as to create the unstable condition when theapplied by the sensor to the yarn is adjustable according to the gauge of the yarn, i.e. the yarn number.
  • the counter-balancing weight can be provided upon theforce arm and the moment of this weight can be adjusted in accordance with the yarn number by providing means enabling movement of the weight upon the latter arm toward and away from the fulcrum or replacement of the weight by another one.
  • the double-ann lever is provided with a circular may correspond to an axial plane of the spindle while the eye is ofl'set womewhat from this plane.
  • the other arm or shank of the lever, carrying the weight, may inelude with the spindle axisor this plane an angled of l-45 to ensure the unstable condition mentioned earlier.
  • the arms of the lever will include with one another an angle B l80a or anangle between 170 and 135.
  • the weight-carrying arm is provided with a guide groove or slot in which the weight is shiftableradially of the thread-guide rod and the fulcrum.
  • the weight retains the thread sensor in an unstablebalance condition in which the unbalancing contribution of the weight is in equilibrium with the normal thread tension under conditions in which the thread is undeflected, the weight thereby exerting only a minimum torque upon the lever in normal thread passage.
  • the thread or yarn is not noticeably stressed or tensioned. Upon standstill of the machine or the individual spindles, this torque is increased by rotation of the lever until the lever reaches a stable balance in which casejany thread loops are straightened and the fore, form in the yarn.
  • the double-arm lever in one embodiment, is formed from a 2 wire having the eye unitarily provided in a leg bent 'fulcrum. It has also been found to be advantageous to provide the weight and the weight-carrying arm with indexing means enabling a rapid setting of the weight for the particular thread type.
  • the thread-guide rod may provide the thread-guide rod with a flange, ring or shoulder which is axially fixed and is received between legs of the lever.
  • I may also provide the axial retaining means in the form of rings or shoulders engageable with flanks of the lever, especially when the latter is composed of synthetic resin or light metal. It has been found to be advantageous, in the latter case, to form the opening 'unitarily in the weight-carrying arm and to provide the weight within the opening and with a threaded spindle for the accurate adjustment of the weight.
  • the slot may be formed as a channel within the weight-carrying arm, the floor of the channel having a slot through which ascrew extends for clamping of the weight in any desired position.
  • the axial retaining ring or shoulder may be provided with a stop pin engageable with the eye-carrying arm to limit rotation of the thread sensor in one direction.
  • the pin may be provided on the lever and may be engageable with an abutment on the thread-guide rod.
  • FIG. 1 is a vertical cross-sectional view through the spindle bank of a twisting machine, showing one twisting assembly provided with a thread sensor, according to the present. invention, the sensor being in its unstable condition consistent with normal operation of the twisting device;
  • FIG. 2 is a front elevational view of the thread sen- V SPECIFIC nascnnrriou
  • the supply device comprises a driven roll 10' and an idler roll 10 through which the thread 12 is passed for feeding tothe spindle.
  • the thread 12 passes over a thread-guide rod 14 of cylindrical configuration, the rod 14 being engaged by the thread l2 over at least a quadrant of its length, especially in the operatingposition of the apparatus.
  • the thread 12 then passes through the eye 16 of the thread sensor, the eye beingformed as a bent-wire turn on the arm or shank 18 of a double-arm lever (FIG.2) bent from a single piece of wire.
  • the plane P also is a plane of the axis B of the spindle which will be described in greater detail hereinafter Hence, the thread 12 in the region 12' lies tangent to the thread-guide rod 14 and parallel to the plane P while passing through the eye 16 which is here aligned substantially with an eye 36 forming part of the twisting assembly, but is offset from the plane P.
  • the double-arm lever forming the thread sensor 20 is provided with a pair of wire turns 22 and 22' on, the respective legs 22d and 22b of a bight 28 forming the other arm of the lever.
  • the loops 22 and 22" therefore, provide journals by means of which the double-arm lever is swingably mounted upon the rod 14.
  • the axial constraint for the thread sensor 20 is provided by an axially fixed abutment ring 23 whichis received between the legs 22a and 22b and is provided with an axially extending pin 26 (FIG. 2) engageable with the arm 18 to limitthe swing of the lever and prevent the latter from. out of its unstable state in the counterclockwise sense as seen in FIG. 1.
  • the arm 28 includes an angle a with the plane P of to 45 in the unstable operating condition of the apparatus and hence the arms 28 and 18 include an angle )3 l80a as already indicated.
  • the arm 28 is formed, between the legs 22a and 22b, with a guide slot 29 in which the legs 22a and 22b form rails for the parallel guidance of a weight 30, 30' and 34 radially of the fulcrum as represented by the arrow C.
  • At least one of the two weight parts 30 and 30' is provided with a guide boss 32 extending longitudinally in the slot 29 and 1 preventing rotation when the screw 34, interconnecting these parts, is turned.
  • the weight parts 30 and 30 clampingly engage the legs 22a and 22b.
  • the weight may be shifted to change the distance L of the weight from the fulcrum and hence the moment of the weight.
  • the moment may be changed by replacing the weight via larger or smaller mass inasmuch as the moment is the product of the mass and a distance proportional to L.
  • the twisting assembly comprises a wirethread guide 36 which may be carried by a fixed part or a movable support rail 38 and is located above the spindle and inwardly of the orbit of the traveler ring 42.
  • the thread 12 after passing through the wire-thread guide 36, normally forms a balloon 54 which is confined by a balloon-Iimiting ring 40 mounted upon a support rail 50 and located above the traveler ring 42.
  • the latter surrounds the spindle core 44 and is carried by an annular rail 46 which may be mounted on the ring bank 48.
  • member 48 carrying the balloon-limiting ring, is movable proportionally to the member 48 or can be provided with means for independent movement.
  • the vertical displacement of member 48 is effected by conventional means, e.g. a thread or screw mechanism and carries the traveler ring upwardly and downwardly (arrow D) as the ring orbits the spindle generally represented at 52.
  • the spindle 52 is driven by an endless belt via conventional means not otherwise illustrated.
  • the thread balloon 54 there is formed in the twisting operation the usual thread balloon 54.
  • the thread balloon 54 collapses and the thread between the supply mechanism l0, l0 and the spindle or the yam-package core 44 becomes tensionless.
  • the thread sensor 20 thereupon swings in the clockwise sense (FIG. 3) into a stable condition, lifting the loose thread until it is agains under some tension to prevent the formation of loops or curls.
  • FIGS. 4 and 5 parts which are functionally similar to those of FIGS. l-3 have been identified with similar numerals increased by 100 whereas parts of FIGS. 6 and 7 which are similar to those described earlier are designated by numerals increased by 200.
  • the thread sensor 120 which is used in a system of the type shown in FIGS. 1 and 3, is composed of synthetic resin or a light metal and may be die-cast or injection-molded.
  • a threaded spindle 58 extends centrally of the groove and has a stub 60 received in a bore 64 while the outer end of the screw is joumaled at 64 in the arm 128 but is prevented from axial movement by the shoulder 72.
  • the end of the screw projecting beyond the arm 128 is provided with a knurled head 66 which The arm 118 is formed unitarily with the arm 128 g and a hub 120' is provided between them, the hub rotatably mounting the thread sensor upon the threadguide rod 114.
  • the rod 114 On one side of the thread sensor, the rod 114 is provided with a positioning ring 76 to prevent axial movement to the left while the other flank of the hub is engaged by an abutment ring 124 carried by the rod 114.
  • a pin 78 is provided in the arm 118 for engagement with a pin 126 carried by the ring'124, the pins being coplanar and extending axially. The pins prevent excessive rotation of the thread sensor in the counterclockwise direction.
  • a wire-thread guide is provided at the end of the arm 1 18, of course.
  • the double arm lever 220 is channeled so as to be open on one side, i.e. to the right in FIG. 6; Within the thread sensor220, i.e.
  • I in the channel of its arm 228, I provide a weight 330 which has a screw traversing a slot 80 in the floor'82 of this channel.
  • the head 84 of a knurled screw may be rotated to loosen the weight and permit it to be moved along the arm 228.
  • a suitable scale can be provided to indicate the position of the weight.
  • I provide a ring 86 upon which the double-arm lever is mounted and which carries a radial pin 88 engageable with abutrnents 90 and 90' to limit the angular displacement of thethreadsensing lever.
  • the legs 222a and 222b flanking the ring 86 cooperated with it to prevent axial movement of the thread sensor.
  • a thread-twisting apparatus comprising:
  • a traveler ring orbiting said spindle and shiftable vertically relative to said spindle therealong within the length of said spindle to deposit a coil of thread thereon;
  • thread-guide means including a stationary eye axially aligned with said spindle and located thereabove for feeding thread downwardly to said traveler a thread-supply device for feeding said thread downwardly normally on a straight line path through said eye; and a thread sensor engaging the thread between said eye and said device and efiective to tighten said thread only upon loosening thereof with reduction of tension in the thread and standstill of said spindle, said thread sensor including an arm normally parallel to'said thread path and provided with a thread engaging eye.
  • a thread-twisting apparatus comprising a supply device for feeding a thread to a thread-twisting assembly including a spindle through a traveler ring orbiting said spindle, the improvement which comprises a thread sensor engaging the thread between said traveler ring and said supply means and effective to tighten said thread only upon the loosening thereof with reduction of tension in the thread thread and standstill of the spindle, and a thread-guide rod between said supply means and said traveler ring, said thread passing over said rod, said thread sensor being pivotally mounted on said bar and having an unstable condition in which said thread is lightly engaged during normal tensioning, said sensor being automatically swingableinto .a stable position wherein said thread is straightened upon decrease in the tension applied to said thread by the spindle.
  • said thread sensor is a double-arm lever fulcrumed on said rod and having a first arm extending generally perpendicular to said rod and parallel to the axis of said spindle in the unstable condition of said sensor and engaging said thread, and a second arm including an angle of substantially to 45 with the axis of said spindle in said unstable condition of the sensor,'said second arm being provided with a weight, said means for adjusting the force with which said sensor bears upon said thread including means for shifting said weight along said second arm relative to said fulcrum, the last-mentioned means including a groove extending longitudinally of said second arm and receiving said weight.
  • said double-arm lever is formed from a single piece of wire and including a thread-guide eye formed at the end of the first arm, a pair of IlOOPS encircling said rod and pivotally mounting said lever thereon and a bight bridging said loops and forming said second arm, said bight having a pair of parallel legs, said weight having a gitudinally guiding the weight therein, said sensor further comprising a threaded spindle engaging said wei tand rotatable to shift said wei t on said-slot.
  • said second arm is formed with a channelreceiving said weight, the floor of said channel being formed with an elongated slot, and screw means traversing said slot and engaging said weight for adjustably positioning said' weight along said channel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
US00094485A 1969-12-04 1970-12-02 Apparatus for preventing the curling and looping of the yarn in a traveler-ring twisting machine Expired - Lifetime US3727394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691960970 DE1960970A1 (de) 1969-12-04 1969-12-04 Vorrichtung zur Verhinderung der Kringel- oder Schleifenbildung bei Ringzwirnmaschinen

Publications (1)

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US3727394A true US3727394A (en) 1973-04-17

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US00094485A Expired - Lifetime US3727394A (en) 1969-12-04 1970-12-02 Apparatus for preventing the curling and looping of the yarn in a traveler-ring twisting machine

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US (1) US3727394A (enrdf_load_stackoverflow)
AT (1) AT315032B (enrdf_load_stackoverflow)
CH (1) CH511301A (enrdf_load_stackoverflow)
DE (1) DE1960970A1 (enrdf_load_stackoverflow)
FR (1) FR2116309B1 (enrdf_load_stackoverflow)
GB (1) GB1283276A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777465A (en) * 1969-12-12 1973-12-11 Rhodiaceta Process and apparatus for manufacture of a thermoplastic yarn with residual twist
US3813869A (en) * 1972-08-30 1974-06-04 Nitto Shoji Kk Twist transmission device for a ring spinning apparatus
US4921186A (en) * 1989-07-21 1990-05-01 E. I. Du Pont De Nemours And Company Apparatus for use in withdrawing yarn from a wound yarn package
WO1993022751A1 (en) * 1992-04-30 1993-11-11 Cover Protection Ltd A method of making a flexible closure incorporating an alarm system
CN105780287A (zh) * 2016-05-13 2016-07-20 卡尔迈耶（中国）有限公司 一种张力片装置
ES2600314A1 (es) * 2016-08-22 2017-02-08 Twistperfect, S.L. Máquina retorcedora de hilos

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4215883A1 (de) * 1991-05-21 1992-11-26 Fehrer Ernst Ringspinnvorrichtung
CH717807A1 (de) * 2020-09-02 2022-03-15 Rieter Ag Maschf Spinnstelle einer Ringspinnmaschine, Ringspinnmaschine und Verfahren zum Betreiben einer Spinnstelle einer Ringspinnmaschine.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2361041A (en) * 1942-10-16 1944-10-24 Lasch Herbert Tensioning device for yarn throwing machines of the up-twister type
US2840979A (en) * 1955-04-29 1958-07-01 Deering Milliken Res Corp Yarn twisting apparatus
GB864716A (en) * 1958-05-29 1961-04-06 Ratti Spa Michele A tension compensator, in particular for the working of yarns in textile twisting machines
US3314224A (en) * 1963-02-06 1967-04-18 Hamel Gmbh Bobbin-building mechanism
US3577722A (en) * 1968-03-07 1971-05-04 Kazimerz Adamaszek Sensing device for automatic braking of the spindle in ring spinning and ring twisting machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2361041A (en) * 1942-10-16 1944-10-24 Lasch Herbert Tensioning device for yarn throwing machines of the up-twister type
US2840979A (en) * 1955-04-29 1958-07-01 Deering Milliken Res Corp Yarn twisting apparatus
GB864716A (en) * 1958-05-29 1961-04-06 Ratti Spa Michele A tension compensator, in particular for the working of yarns in textile twisting machines
US3314224A (en) * 1963-02-06 1967-04-18 Hamel Gmbh Bobbin-building mechanism
US3577722A (en) * 1968-03-07 1971-05-04 Kazimerz Adamaszek Sensing device for automatic braking of the spindle in ring spinning and ring twisting machines

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777465A (en) * 1969-12-12 1973-12-11 Rhodiaceta Process and apparatus for manufacture of a thermoplastic yarn with residual twist
US3813869A (en) * 1972-08-30 1974-06-04 Nitto Shoji Kk Twist transmission device for a ring spinning apparatus
US4921186A (en) * 1989-07-21 1990-05-01 E. I. Du Pont De Nemours And Company Apparatus for use in withdrawing yarn from a wound yarn package
WO1993022751A1 (en) * 1992-04-30 1993-11-11 Cover Protection Ltd A method of making a flexible closure incorporating an alarm system
GB2283352A (en) * 1992-04-30 1995-05-03 Cover Protection Ltd A method of making a flexible closure incorporating an alarm system
GB2283352B (en) * 1992-04-30 1995-12-06 Cover Protection Ltd A method of making a flexible closure incorporating an alarm system
US5677674A (en) * 1992-04-30 1997-10-14 Cover Protection Limited Method of making a flexible closure incorporating an alarm system
CN105780287A (zh) * 2016-05-13 2016-07-20 卡尔迈耶（中国）有限公司 一种张力片装置
ES2600314A1 (es) * 2016-08-22 2017-02-08 Twistperfect, S.L. Máquina retorcedora de hilos

Also Published As

Publication number Publication date
DE1960970A1 (de) 1971-06-09
FR2116309A1 (enrdf_load_stackoverflow) 1972-07-13
CH511301A (de) 1971-08-15
AT315032B (de) 1974-05-10
FR2116309B1 (enrdf_load_stackoverflow) 1974-09-20
GB1283276A (en) 1972-07-26

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