US20020033012A1 - Method and apparatus for the simultaneous centralized control of the yarn brakes of twist spindles of a two-for-one twisting machine - Google Patents

Method and apparatus for the simultaneous centralized control of the yarn brakes of twist spindles of a two-for-one twisting machine Download PDF

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Publication number
US20020033012A1
US20020033012A1 US09/953,129 US95312901A US2002033012A1 US 20020033012 A1 US20020033012 A1 US 20020033012A1 US 95312901 A US95312901 A US 95312901A US 2002033012 A1 US2002033012 A1 US 2002033012A1
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United States
Prior art keywords
yarn
brake
teeth
axial
twist
Prior art date
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Abandoned
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US09/953,129
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English (en)
Inventor
Heinz Kamp
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.)
Volkmann GmbH and Co KG
Original Assignee
Volkmann GmbH and Co KG
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Filing date
Publication date
Application filed by Volkmann GmbH and Co KG filed Critical Volkmann GmbH and Co KG
Assigned to VOLKMANN GMBH & CO. reassignment VOLKMANN GMBH & CO. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAMP, HEINZ
Publication of US20020033012A1 publication Critical patent/US20020033012A1/en
Abandoned legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/16—Framework; Casings; Coverings ; Removal of heat; Means for generating overpressure of air against infiltration of dust; Ducts for electric cables
    • D01H1/166—Framework; Casings; Coverings ; Removal of heat; Means for generating overpressure of air against infiltration of dust; Ducts for electric cables for two-for-one type
    • 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
    • D01H13/106—Regulating tension by devices acting on running yarn and not associated with supply or take-up devices for double-twist spindle

Definitions

  • the present invention relates to a method and apparatus for the simultaneous centralized control of capsule-like yarn brakes of several twist spindles of a two-for-one twisting machine.
  • DE 44 08 262 C2 discloses an apparatus for the central control of a capsule-like yarn brake of a twisting machine, especially a two-for-one twisting machine.
  • This conventional apparatus includes a control device and a common compressed air unit which is communicated with the twist spindles via connecting units each associated with a respective twist spindle and operable to deliver air pulses to a pressurized air cylinder coupled to a brake ring of the respective twist spindle, the control device controlling the common compressed air unit to deliver pressurized air pulses to the pressurized air cylinders, whereby the pressurized air cylinders, upon receipt of the air pulses, effect an axial displacement of the rotatable brake rings of all of the capsule-like yarn brakes over a predetermined extent.
  • DE PS 32 43 157 discloses a twist spindle having a capsule-like yarn brake, which is supported between upper and lower brake rings.
  • the upper brake ring is mounted to a support body at the lower end of a yarn intake conduit of a twist spindle and is resiliently biased by a spring in the direction of the lower, second brake ring.
  • the support body is provided with a plurality of support shoulders distributed around its circumference at different axial positions so that a respective one of the support shoulders is supported on a stationary detent.
  • An adjustment of the braking force of the capsule-like yarn brake is effected in a manner such that the yarn intake conduit is raised against the force of the spring which biases the support body and, thereafter, the yarn intake conduit is rotated through a pre-determined angular range of traverse such that another support shoulder of the support body comes to rest against the detent.
  • This conventional device is thus directed to an individual adjustment and, especially, a manual individual adjustment, of each individual capsule-like yarn brake.
  • the present invention offers a solution to the challenge of providing a method and an apparatus for the simultaneous centralized controlled adjustment of the capsule-like yarn brakes of a plurality of twist spindles of a two-for-one twisting machine such that the need for a dedicated pressurized air system can be avoided.
  • the present invention is particularly characterized in that it exerts, in a purely mechanical operation implemented via a plurality of yarn balloon guides commonly supported on a support frame, a sufficiently high pressure on the yarn intake conduits of a plurality of twist spindles such that the yarn intake conduits, which each support one of the two respective brake rings of the respective twist spindle, are axially displaced against the bias of a spring force to an extent such that a brake ring rotation advances the brake ring to a different axial position relative to the other, second respective brake ring following each release of the yarn intake conduit from the axial pressure thereon.
  • FIG. 1 is a sectional view of a two-for-one twisting machine having a plurality of yarn balloon guides commonly mounted on a yarn guide frame, which is movable upwardly and downwardly;
  • FIG. 2 is an enlarged sectional view of a twist spindle having a hollow shaft in which a capsule-like yarn brake is disposed;
  • FIGS. 3 a - 3 c are each an enlarged perspective view of a portion of the adjustment unit at a respective different position thereof during movement of the adjustment unit to adjust the braking force of the twist spindle relative to a stationary detent;
  • FIG. 4 is an enlarged perspective view of a variation of the one embodiment of the adjustment unit.
  • FIG. 5 is an enlarged perspective view of a twist spindle having a variation of the embodiment of a yarn balloon guide.
  • FIG. 1 shows a sectional view of a two-for-one twisting machine which supports the yarn balloon guides 9 of a plurality of twist spindles S arranged in neighboring relation to one another, the yarn balloon guides 9 being commonly mounted to a common yarn guide frame 11 which is movable—in a not illustrated guide—upwardly and downwardly parallel to the axes of the twist spindles S in the direction of the double arrow F 1 .
  • the yarn guide frame 11 is suspended by means of suspension hangers 12 on a shaft 13 , which is rotatably driven by a rotation drive 14 operatively coupled to a motor 15 .
  • the downward movement of the yarn guide frame 11 is effected under the influence of gravity by corresponding controlled actuation of the motor 15 .
  • the yarn balloon guides 9 can be displaced downwardly through corresponding adjustment of the yarn guide frame 11 to such an extent that the yarn balloon guides 9 exert a downward pressure on the yarn intake conduits 3 of a plurality of the twist spindles S, whereby the yarn intake conduits 3 are pressed downwardly.
  • FIG. 2 shows a portion of the hollow shaft 2 of a rotationally symmetric housing 16 in which is disposed a capsule-like yarn brake 11 and an adjustment unit 18 which is responsive to downward pressure on the yarn intake conduit 3 , the adjustment unit 18 being operable to effect a variation of the braking force of the capsule-like yarn brake 11 .
  • the adjustment unit 18 is secured to the bottom end of the yarn intake conduit 3 and comprises a cylindrical housing 27 open towards its bottom for receipt therein of a helical spring 28 which biases the adjustment unit 18 upwardly.
  • the housing 16 is closed on its topside by a threaded cover 19 through which the yarn intake conduit 3 is guided outwardly of the housing 16 .
  • the capsule-like yarn brake 11 includes a bullet-like brake which, in conventional manner, is comprised of two displaceable tube portions 11 . 1 and 11 . 2 biased by a spring to move axially away from one another and each of which includes a cup or cap-shaped end portion.
  • the lower tube portion 11 . 2 is supported against a brake ring 20 , which is disposed in a brake ring carrier 21 disposed in an axial guide or groove 21 . 1 .
  • the brake ring carrier 21 which is supported against a helical spring 22 , is sealingly guided in a housing bore 16 .
  • a yarn threading system of this type is described in DE 44 08 262 C2 and is, in any event, the basic configuration of the yarn intake assembly as described in the hereinafter-described adjustment unit 18 .
  • a first annular upper toothed rim 40 is disposed on the adjustment unit 18 above the housing 27 and a second annular lower tooth rim 41 is disposed above the housing 27 as well.
  • the upwardly directed teeth of the lower toothed rim 41 form therebetween axial spaces in the form of openings/slots whose bases or bottoms form notches or, respectively, support shoulders which are distributed about the circumference of the toothed rim at differing axial heights therearound and each notch or support shoulder is engaged upon its turn by a radially inwardly projecting detent 29 as a function of the rotational position of the adjustment unit 18 .
  • the downwardly directed teeth of the upper-toothed rim 40 form therebetween axially extending slots opening downwardly or, respectively, form downwardly opening notches.
  • FIGS. 3 a - 3 c for a description of the configuration of the teeth of the two toothed rims 40 and 41 ; the arrow F 2 indicates the rotational direction of the adjustment unit 18 .
  • the flanks 40 . 1 and 41 . 1 of the teeth of the upper and lower toothed rims 40 and 41 which extend in the rotational direction F 2 have substantially axial extents.
  • the down sloping flanks 40 . 2 or, respectively, 41 . 2 of the upper and lower toothed rims 40 and 41 are configured as respective rising or falling angled surfaces which form an angle of approximately 45° relative to the rotational direction.
  • the tips or peaks of the teeth of the upper-toothed rim 40 are offset from the tips or peaks of the teeth of the lower toothed rim 41 in the rotational direction by an amount which is slightly greater than the diameter of the detent 29 .
  • FIG. 3 a shows an operational condition in which the lower toothed rim 41 is engaged by the detent 29 such that the detent is seated in a notch I between two neighboring teeth of the lower toothed rim with the portion of the adjustment unit 18 comprised of the lower toothed rim 41 being upwardly biased by the spring 28 . If the adjustment unit 18 is displaced downwardly in the direction of the arrow F 3 via a downward pressure on the yarn intake conduit 3 , the detent initially assumes the position shown by the broken lines 29 ′ seen in FIG. 3 b. Upon further downward pressure on the yarn intake conduit 3 , the detent traverses along the toothed flank 40 .
  • the adjustment unit 18 is again biased upwardly, as seen in FIG. 3 c, in the direction of the arrow F 4 due to the biasing action of the spring 28 so that the detent 29 —following the path shown by the bent arrow F 6 —seats into the next following notch 11 , whereby there follows a sliding movement of the detent 29 along the flank 41 . 2 in the direction of the rotation direction F 2 upon a further partial rotation of the adjustment unit 18 .
  • the braking force can thus be adjusted in a step-wise manner through individual downward pressure and release sequences of the yarn intake conduit 3 until the braking force has been increased to a maximum value, which value is predetermined by the depth of the deepest notch in the lower toothed rim 41 .
  • the yarn braking force can be increased until the detent 29 is eventually seated in the deepest notch of the lower toothed rim 41 .
  • the detent 29 is moved into the next following—that is—the highest disposed notch—of the lower toothed rim 41 , which corresponds to the braking force adjustment position of the lowest value.
  • the toothed rims 40 ′, 41 ′ can be configured as lower components freely rotatable relative to the remainder of the adjustment unit 18 but not, however, adjustable relative thereto in the axial direction, with the toothed rims 40 ′, 41 ′ being supported by, from below, a collar of the housing 27 and, from above, a detent body 60 which is securely mounted via, for example, a threaded screw 61 , on the yarn intake conduit 3 .
  • the yarn balloon guides can alternatively be configured to be self-centering with respect to the associated yarn intake conduits 3 —e.g., as truncated ball-shaped yarn balloon guides 9 ′, as seen in FIG. 5.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US09/953,129 2000-09-16 2001-09-14 Method and apparatus for the simultaneous centralized control of the yarn brakes of twist spindles of a two-for-one twisting machine Abandoned US20020033012A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10045909.9 2000-09-16
DE10045909A DE10045909A1 (de) 2000-09-16 2000-09-16 Verfahren und Einrichtung zum gleichzeitigen, zentral gesteuerten Einstellen von Kapselfadenbremsen mehrerer Doppeldraht-Zwirnspindeln

Publications (1)

Publication Number Publication Date
US20020033012A1 true US20020033012A1 (en) 2002-03-21

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US09/953,129 Abandoned US20020033012A1 (en) 2000-09-16 2001-09-14 Method and apparatus for the simultaneous centralized control of the yarn brakes of twist spindles of a two-for-one twisting machine

Country Status (6)

Country Link
US (1) US20020033012A1 (cs)
EP (1) EP1188851A2 (cs)
JP (1) JP2002138330A (cs)
CN (1) CN1343801A (cs)
CZ (1) CZ20013322A3 (cs)
DE (1) DE10045909A1 (cs)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080159067A1 (en) * 2005-04-18 2008-07-03 Collette Nv Continuous Granulator and Method of Continuous Granulation of Powder Material
US20090028477A1 (en) * 2004-10-11 2009-01-29 Heinz Fink Bearing Arrangement for a Creel
US7866589B2 (en) 2005-10-19 2011-01-11 Oerlikon Textile Gmbh & Co. Kg Wind-on device for workstations of two-for-one twisters and ply twisters
US8707667B2 (en) 2011-08-26 2014-04-29 Oerlikon Textile Gmbh & Co. Kg Textile machine with a plurality of workstations

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005049376A1 (de) * 2005-10-15 2007-04-19 Saurer Gmbh & Co. Kg Fadenbremse
CN106367856B (zh) * 2016-11-17 2019-01-22 安徽日发纺织机械有限公司 一种大卷装气动穿纱倍捻锭子
WO2020129079A1 (en) * 2018-12-18 2020-06-25 Parthassarathy N Ring-traveller system of a ring spinning machine
CN115449944B (zh) * 2022-09-24 2024-03-15 上海嘉麟杰纺织科技有限公司 一种长条豹纹面料生产方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243157C2 (de) * 1982-11-23 1985-01-24 Palitex Project-Company Gmbh, 4150 Krefeld Fadenbremse mit zugeordneter druckluftbetätigter Einfädelvorrichtung, insbesondere für Doppeldraht-Zwirnspindeln
EP0620301B1 (de) * 1993-04-13 1997-06-18 Palitex Project-Company GmbH Einrichtung zum Einstellen von Kapselfadenbremsen an Zwirnmaschinen, insbesondere Doppeldraht-Zwirnmaschinen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090028477A1 (en) * 2004-10-11 2009-01-29 Heinz Fink Bearing Arrangement for a Creel
US20080159067A1 (en) * 2005-04-18 2008-07-03 Collette Nv Continuous Granulator and Method of Continuous Granulation of Powder Material
US8708551B2 (en) * 2005-04-18 2014-04-29 Collette Nv Continuous granulator and method of continuous granulation of powder material
US7866589B2 (en) 2005-10-19 2011-01-11 Oerlikon Textile Gmbh & Co. Kg Wind-on device for workstations of two-for-one twisters and ply twisters
US8707667B2 (en) 2011-08-26 2014-04-29 Oerlikon Textile Gmbh & Co. Kg Textile machine with a plurality of workstations

Also Published As

Publication number Publication date
CN1343801A (zh) 2002-04-10
CZ20013322A3 (cs) 2002-04-17
JP2002138330A (ja) 2002-05-14
DE10045909A1 (de) 2002-04-11
EP1188851A2 (de) 2002-03-20

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Legal Events

Date Code Title Description
AS Assignment

Owner name: VOLKMANN GMBH & CO., GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KAMP, HEINZ;REEL/FRAME:012175/0936

Effective date: 20010905

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE