US3626440A - Yarn-piecing apparatus and method with yarn collation by vacuum - Google Patents

Yarn-piecing apparatus and method with yarn collation by vacuum Download PDF

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Publication number
US3626440A
US3626440A US20365A US2036570A US3626440A US 3626440 A US3626440 A US 3626440A US 20365 A US20365 A US 20365A US 2036570 A US2036570 A US 2036570A US 3626440 A US3626440 A US 3626440A
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United States
Prior art keywords
yarn
roller
piecing
entrained
mouth
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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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US20365A
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English (en)
Inventor
Albert D Harmon
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Maremont Corp
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Maremont Corp
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Filing date
Publication date
Application filed by Maremont Corp filed Critical Maremont Corp
Priority to US20365A priority Critical patent/US3626440A/en
Priority to CA097152A priority patent/CA922877A/en
Priority to GB58047/70A priority patent/GB1282379A/en
Priority to CH334871A priority patent/CH517650A/de
Priority to DE2111316A priority patent/DE2111316C3/de
Application granted granted Critical
Publication of US3626440A publication Critical patent/US3626440A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D01H15/013—Carriages travelling along the machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing

Definitions

  • the vacuum means has a mouth opening positioned below and close to the roller so as to be in line with the yarn-end entrained on the roller and depending therefrom.
  • the vacuum means in a yarn-collating action, draws in air currents and with them draws the other end into engagement with the entrained end.
  • the entrained end at this time is clamped and twisted to hold it in a spaced away relation to the vacuum means mouth and to impart to it an overtwist. It is then released to untwist and in so doing intertwines with the other end collated therewith.
  • the roller then is rotated to unentrain the first end.
  • the mouth of the vacuum means in preferred embodiments, is bevelled and/or has grooves in line with the threadline of the entrained end to permit close, yet spaced away relation thereto for better yarn collation.
  • this invention relates to avacuum yam-accumulator or collatingmeans closely associated with said roller for assisting
  • some yarn delivery as sembly such as the delivery rolls of a textile machine
  • some yarn take-up device such as a package former, e.g. the rotatable spindle of a textile twisting and winding frame; and indeed such delivery assembly and package former may be on the same textile machine, although this is not a present requirement.
  • a further problem occurs with piecing devices which employ a freely rotatable roller or the like as the nosepiece element effective in bringing the yarn ends to be pieced into piecing contact with one another during the critical piecing-up step.
  • lintlike accumulations tend to accrete between the roller and its supporting shaft and/or the points of attachment of the roller shaft and the supporting arms of the nosepiece.
  • such accumulations prevent free rotation of the roller, which rotation as will be later explained is vital to successful yarn-piecing. This results in a functional inoperativeness of the piecing apparatus.
  • Another object of this invention is to provide such an improved apparatus and method which maintains the roller free of other wise incapacitating accretions of lintlike fibers.
  • Yet another object of this invention is to provide such an improved apparatus and method which assures such piecing over a measurable and extended length of the ends to be pieced without slubs.
  • a yet other object of the invention is to provide such an improved apparatus and method which maintains the roller free of incapacitating lint-like accretions.
  • Yet another object of thisinvention is to provide such an improved apparatus and method wherein during vacuum collation of the yarn-ends to be pieced abrasion thereof is obviated.
  • vacuum means so associated and positioned is capable of developing a sufficient flow of vacuum-drawn air through said openingsuch that it can move the delivery yarn-end away from its normally downward direction laterally. toward the threadline of the borne yarn-end during the critical piecing-up step. in this way, the delivery yarn-end is licked in" toward the borne-end in a collating action and makes contact therewith for intertwining andpiecing therewith, upon release of the borne-end from its held position of entrainment on the nosepiece roller element.
  • the channel configuration of the vacuum meansopening aids in directing the delivery yarn-end toward the borne-end by guiding the currents of air entering said opening.
  • the walls of the opening are spaced away from the most extreme laterally inward threadline position of the borne yarn-end and the delivery-end which is licked in during the critical piecing up um om step.
  • the present improvement comprises in combination with a yarn-end piecing device, a freely rotatable, yarn-end entraining roller on the protrudable yarn-proffering nosepiece assembly of said device, and vacuum means associated with said roller having an outwardly faced opening from said nosepiece in spaced relation to said roller whereby the threadline of yarn entrained over said roller is in line with said opening and spaced away therefrom and in close association therewith.
  • the method of the present invention comprises the steps of entraining an end of yarn over a freely rotatable roller element of a yarn-proffering nosepiece of a yarn piecing device; clamping said yarn-end thereover while imparting twist to said yarn, moving said nosepiece toward na end of yarn to be joined with said entrained yarn-end; actuating a vacuum means, which is in close association with said roller and the threadline of said entrained yarn, having an opening adjacent said threadline but spaced away therefrom whereby said other yarn-end is drawn toward said entrained threadline; and releasing said entrained yarn-end from said roller and concomitantly rotating said roller whereby said other yarn-end is joined to said released yarn-end and moved with it away from said nosepiece.
  • the nosepiece is advanced toward the delivery assembly of the textile machine.
  • the threadline of the yarn entrained over the roller nosepiece and thereupon clamped closely approaches the threadline of the delivery yarn, the latter under the aegis of currents of air being drawn into the open end or mouth of the vacuum means is licked away from the vacuum cleaning tube associated with the delivery assembly and into contact with the entrained yarn-end threadline.
  • the entrained yarn-end during this interval is being twisted from its other end by the takeup device to which it is connected, to provide a rather high degree of twist, commonly known as overtwist.
  • the nosepiece is advanced to a point where the nonrotating, but otherwise freely rotatable roller makes contact with the continuously rotating lower delivery roll.
  • the entrained yarnend is unclamped, the roller is driven by the delivery roll and the unclamped overwound or overtwisted yarn-end untwists joining in this action the licked in delivery yarn in contact therewith forming a continuous strand of pieced yarn between the delivery rolls of the textile machine to the takeup device.
  • the collating action of the air currents drawn into the aforesaid vacuum means of the invention provides positive engagement of the delivery yarn with the entrained yarn despite prior misalignment of the threadlines thereof, yet since the mouth of the vacuum means is always spaced away from the entrained threadline, abrasion thereof is obviated, assuring a nonweakened piecing of the yam-ends.
  • FIG. 1 in side elevation partially in section, shows the roller-containing nosepiece of the piecing device as it begins its approach toward the delivery assembly of the textile machine prior to clamping of the yarn-end bome thereby, and the mouthpiece of the present vacuum means in close association with said roller.
  • FIG. 2 in similar view, shows the entrained yarn-end clamped, the nosepiece in a more advanced position and the delivery yarns threadline being licked or drawn toward the entrained yarns threadline under the influence of air currents being drawn into the open end of the present vacuum means.
  • FIG. 3 in similar view, shows contact of the roller with the delivery roll, unclamping of the entrained yarn, engagement of the delivery yarn with the entrained yarn and piecing by untwist of the overtwist of the unclamped yarn with the lickedin and contacting delivery yarn.
  • FIG. 4 in yet similar view shown the now pieced yarn extending as a continuous strand vand the piecing device nosepiece moved or with drawn from the textile machine.
  • FIG. 5 taken approximately along line 5-5 of FIG. 1, shows a front view of the mouthpiece of the present vacuum means in close association with the roller and the entrained yarn-end, the latter two partially broken away in fragmentary view.
  • An automatic yarn-piecing device patrolling along and scanning the delivery positions of the textile machine, had detected the ends-down condition, stopped and aligned itself adjacent the appropriate delivery assembly and its corresponding takeup device, fixed a yarn such as a seed yarn" at one end to the take up device or alternately withdrew a portion of the parted yarn fixed to the takeup device, taken other necessary actions such as threading the corresponding traveler or the like and elevated itself to a position in line with the delivery assembly of the textile machine and the yarn-end still issuing therefrom.
  • the yarn end D issuing from between the nip of the delivery rolls l2 and 14 of delivery assembly I0 of the textile machine downwardly depends therefrom and is aspirated into a vacuum tube 16 associated with delivery 10 through an adjacent orifice 18; thereby, yarn-end D is positioned such that its depending threadline is generally adjacent to and trained on a portion of lower roll 14 and is substantially but not necessarily precisely perpendicular to the longitudinal direction of said rolls 12, I4.
  • the yarn-proffering nosepiece assembly generally designated as 20, positioned as aforesaid, it comprises a nosepiece assembly support arm 22 connected (not shown) to the nosepiece elevating and advancement-retroction actuating mechanism (not shown) of the piecing device; intermediate arm 22 and pivotably connected thereat (not shown) is a forwardly extending yarn-clamping and -severing arm 24; positioned at the forward ends, and respectively at the upper and lower opposing sides thereof, of arms 22, 24 are clamping and yarn-severing jaws 26, 28, jaw 26 optionally being of a resilient material; fixed to the forward end of arm 22 and projecting therefrom are roller shaft supporting arms 30, which optionally may be resiliently mounted (not shown) for pressure-forced inward movement, said arms 30 supporting therebetween at an intermediate point thereof a bifurcate yarn guide 32, and at the forward end portion thereof a roller support shaft 34 having mounted thereon for free rotation thereabout a yarn-entraining roller 36', and a tube portion 40 of said vacuum means of the invention having
  • mouth 42 has a bevelled opening in the downward direction
  • the walls of which in section may be rectangular in a preferred embodiment, and on their outer faces may be linear or, in the most preferred embodiment, may have at their upper and lower opposing faces knotches or grooves centered so as to be substantially in line with the bifurcate opening of yarn guide 32, the phantom line joining the apexes of the upper and lower grooves being indicated as 42A, in this and succeeding figures.
  • nosepiece 20 continues its approach to delivery assembly until roller 36 makes contact with lower roll 14, grasping in the bite produced both yarn-end Y and .6 knotches permit yarn-end Y to be in close, spaced relation to mouth 42 throughout the piecing operation and in very close,
  • yarn-collating vacuum means for collating an end of yarn with another end of yarn entrained over and having a depending threadline from said roller, for piecing therewith,
  • said vacuum means has an open mouth element for drawing thereinto currents of air, said element being fixed to said apparatus relative to said roller so as to face said depending threadline.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US20365A 1970-03-17 1970-03-17 Yarn-piecing apparatus and method with yarn collation by vacuum Expired - Lifetime US3626440A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US20365A US3626440A (en) 1970-03-17 1970-03-17 Yarn-piecing apparatus and method with yarn collation by vacuum
CA097152A CA922877A (en) 1970-03-17 1970-11-02 Yarn-piecing apparatus and method with yarn collation by vacuum
GB58047/70A GB1282379A (en) 1970-03-17 1970-12-07 Yarn-piecing apparatus and method with yarn collation by vacuum
CH334871A CH517650A (de) 1970-03-17 1971-03-08 Verfahren und Vorrichtung zum Verbinden der abgerissenen Enden eines in einer Spinnmaschine od. dgl. laufenden Garnes
DE2111316A DE2111316C3 (de) 1970-03-17 1971-03-10 Vorrichtung in einer Spinnmaschine zum Anspinnen eines gewissen von der Spule einer Spindel abgezogenen Garnes an das aus den Lieferwalzen eines vorgeschalteten Streckwerkes austretende Faserband

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20365A US3626440A (en) 1970-03-17 1970-03-17 Yarn-piecing apparatus and method with yarn collation by vacuum

Publications (1)

Publication Number Publication Date
US3626440A true US3626440A (en) 1971-12-07

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US20365A Expired - Lifetime US3626440A (en) 1970-03-17 1970-03-17 Yarn-piecing apparatus and method with yarn collation by vacuum

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US (1) US3626440A (de)
CA (1) CA922877A (de)
CH (1) CH517650A (de)
DE (1) DE2111316C3 (de)
GB (1) GB1282379A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822539A (en) * 1972-10-24 1974-07-09 Ici Ltd Threadable yarn treatment tube
US3924394A (en) * 1973-10-10 1975-12-09 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US3924393A (en) * 1973-10-10 1975-12-09 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US3925975A (en) * 1973-10-10 1975-12-16 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US4485615A (en) * 1981-03-16 1984-12-04 Pigalev Evgeny Y Apparatus for piecing yarn to broken end of a fibrous strand in a spinning machine
US4550560A (en) * 1983-03-30 1985-11-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method for piecing fasciated yarn
US4970855A (en) * 1987-06-24 1990-11-20 Maschinenfabrik Rieter Ag Method and apparatus for piecing a reserve feed stock with a production feed stock
US5295348A (en) * 1991-04-05 1994-03-22 Fritz Stahlecker Process and apparatus for start spinning at a multi-spinning station spinning machine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753349C2 (de) * 1977-11-30 1983-03-24 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Verfahren und Vorrichtung zum Anspinnen eines Umwindegarnes
DE2930798C2 (de) * 1979-07-28 1983-03-31 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Verfahren und Vorrichtung zum Anspinnen eines Umwindegarnes
DE3034909C2 (de) * 1980-04-16 1985-01-24 Ivanovskij tekstil'nyj institut imeni M.V. Frunze, Ivanovo Vorrichtung zum maschinellen Rückführen und Andrehen eines gebrochenen Garns auf Spinnmaschinen
DE3015839A1 (de) * 1980-04-24 1981-10-29 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Ansetzvorrichtung zum beheben von fadenbruechen an einer ringspinnmaschine
FR2576327A1 (fr) * 1985-01-24 1986-07-25 Alsacienne Constr Mat Tex Perfectionnement pour bras de rattacheur automatique
EP0388938A1 (de) * 1989-03-22 1990-09-26 Maschinenfabrik Rieter Ag Verfahren zum Betrieb einer Spinnmaschine sowie Bedienroboter zur Durchführung des Verfahrens
DE4205164C1 (en) * 1992-02-20 1993-05-06 Zinser Textilmaschinen Gmbh, 7333 Ebersbach, De Process to eliminate yarn breakage in ring spinning machine - by sucking non-spun slubbing into yarn breakage suction pipe and attaching it to yarn

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3398521A (en) * 1967-05-08 1968-08-27 Leesona Corp Textile machine
US3466862A (en) * 1967-07-20 1969-09-16 Nadezhda Ivanovna Artamonova Means for catching a broken yarn and piecing it to the sliver,particularly for use with spinning frames and spinning and twisting frames

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB958262A (en) * 1961-07-29 1964-05-21 Cotton Silk & Man Made Fibres Thread piecing device
JP2538286B2 (ja) 1987-11-09 1996-09-25 三洋電機株式会社 脱水洗濯機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3398521A (en) * 1967-05-08 1968-08-27 Leesona Corp Textile machine
US3466862A (en) * 1967-07-20 1969-09-16 Nadezhda Ivanovna Artamonova Means for catching a broken yarn and piecing it to the sliver,particularly for use with spinning frames and spinning and twisting frames

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822539A (en) * 1972-10-24 1974-07-09 Ici Ltd Threadable yarn treatment tube
US3924394A (en) * 1973-10-10 1975-12-09 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US3924393A (en) * 1973-10-10 1975-12-09 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US3925975A (en) * 1973-10-10 1975-12-16 Fritz Stahlecker Apparatus for piecing a thread in an open-end spinning unit
US4485615A (en) * 1981-03-16 1984-12-04 Pigalev Evgeny Y Apparatus for piecing yarn to broken end of a fibrous strand in a spinning machine
US4550560A (en) * 1983-03-30 1985-11-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method for piecing fasciated yarn
US4970855A (en) * 1987-06-24 1990-11-20 Maschinenfabrik Rieter Ag Method and apparatus for piecing a reserve feed stock with a production feed stock
US5295348A (en) * 1991-04-05 1994-03-22 Fritz Stahlecker Process and apparatus for start spinning at a multi-spinning station spinning machine

Also Published As

Publication number Publication date
DE2111316B2 (de) 1974-07-04
DE2111316A1 (de) 1972-03-16
CH517650A (de) 1972-01-15
DE2111316C3 (de) 1984-10-25
CA922877A (en) 1973-03-20
GB1282379A (en) 1972-07-19

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