US3037716A - Method of and device for applying an end winding at the top of wound weft bobbins and cops - Google Patents

Method of and device for applying an end winding at the top of wound weft bobbins and cops Download PDF

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Publication number
US3037716A
US3037716A US818408A US81840859A US3037716A US 3037716 A US3037716 A US 3037716A US 818408 A US818408 A US 818408A US 81840859 A US81840859 A US 81840859A US 3037716 A US3037716 A US 3037716A
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US
United States
Prior art keywords
winding
yarn
bobbin
windings
separator
Prior art date
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
Application number
US818408A
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English (en)
Inventor
Dietiker Ernst
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.)
Machinenfabrik Schweiter AG
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Machinenfabrik Schweiter AG
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Publication date
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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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/34—Traversing devices; Package-shaping arrangements for laying subsidiary winding, e.g. transfer tails
    • 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 device and method according to the present invention enables a winding having a very short yarn end to be formed in a very simple manner, said yarn end being prevented from unwinding itself.
  • a particular advantage of the invention resides in the fact that the securing of the end winding is effected without employing a loop.
  • the method according to this invention consists in that the yarn is continuously Wound directly on the bobbin tube at one point of the end winding so that a groove is formed at the center of the winding, the lateral windings of which cover the yarn entering the groove from either side, a member conducting the yarn towards the bobbin tube being employed to form the said groove.
  • the method is performed by means of a device comprising a yarn guide plate, a member forming a groove in the end winding and a checking pin limiting the width of the winding at the side of the bobbin tip.
  • a device comprising a yarn guide plate, a member forming a groove in the end winding and a checking pin limiting the width of the winding at the side of the bobbin tip.
  • FIG. 1 is a cross-sectional view taken along line II in FIG. showing the method according to this invention
  • FIG. 2 is an end view of the device in operative position from the bobbin side
  • FIG. 3 is a plan view of the device
  • FIG. 4 shows an end view of the device swivelled into inoperative position
  • FIGS. 5 and 6 show an end view respectfully, of the yarn guide during the formation of the end winding
  • FIG. 7 shows a plan view of a completed bobbin with an end winding secured against unwinding.
  • the device for the formation of the end winding comprises a holder 4a which may, by way of example, be attached to the counter member 4 of the bobbin support.
  • a holder 4a which may, by way of example, be attached to the counter member 4 of the bobbin support.
  • Rotatably connected to this holder 4m is the spindle 5 to which a one-arm lever 6 is attached by means of a pin 7.
  • a further two-arm lever 8 Secured to the spindle 5 is a further two-arm lever 8 which carries an adjusting screw 9 at one end 8a and, at the other, a spring eye engaged by a tension spring 10 and a pressure bar 10a which moves the device into operative position.
  • a tension spring 10 and a pressure bar 10a Arranged on the lever and a plan view,
  • a yarn guide plate 11 in which the checking pin 12 (FIG. 1) is supported and forced downward by the spring 12a.
  • This checking pin 12 is provided with a conical free end 13 which is flared outwards.
  • Screwed to the yarn guide plate 11 by means of screws 15 is a winding separator member 14 so that its edge is directed at the point of entry 11a (FIG. 5) of the supplied yarn 18.
  • This winding separator member forms a groove in the yarn winding and continuously conducts the thread to the bottom of the groove directly to the outer surface of the bobbin member 1.
  • the yarn guide plate 11 and the winding separator member 14 may also be formed integrally.
  • the lever 6 can be so adjusted by the adjusting screw 9 that the winding separator member 14 is removed from the surface of the bobbin tube by one thickness of the yarn while the checking pin 12 has its edge facing the winding lightly engaging the bobbin tube with its conical end under the pressure of spring 12a and is thereby rotated. As best seen in FIGS. 1 and 2, only the edge of the conical end of the checking pin facing the winding engages the tube. This enables it to rotate while protecting both the bobbin and the windings against friction.
  • the checking pin forms an acute angle with the bobbin surface.
  • the first group or layers of the end winding are applied on the entry side of the yarn guide plate 11.
  • the yarn 18 passed about the edge of the yarn guide plate 11 is deviated from the yarn windings formed but, owing to its position of entry determined by the yarn guide plate 11 and the yarn tension, always displays the tendency to return to its natural position, i.e. normal to the bobbin axis.
  • the winding so produced very quickly inhibits the spreading of the yarn on this side of the winding separator member, which causes a group or number of layers to be wound on the as yet free side of the winding separator member as well, the individual coils of yarn passing underneath the separator member.
  • the thread wound on the bobbin tube may be displaced thereon in axial direction of the bobbin tube by the thread subsequently wound up at the same location. Due to this fact it is possible that the thread with its windings on the bobbin tube will form first a winding portion on the side of the yarn guide plate 11, i.e. the separator member 14 nearer the winding 16.
  • the separator member 14 Due to the fact that the separator member 14 is retracted from between the two winding portions, they will, due to their tension, fill the gap or groove between them so that a more or less uniform end winding is formed, in which the thread end of the end winding itself is covered by previously produced windings or turns of the end winding. Thus unwinding of the thread end from the end winding is prevented.
  • a device for applying a separate end winding to a bobbin tube comprising a yarn guide plate, a winding separator member affixed to said guide plate for forming a groove in an end winding, and a checking pin resiliently mounted in said guide plate for limiting the width of the end winding on the side of one of the ends of said bobbin tube.
  • a device including a spring engaging said checking pin, urging the checking pin to engage the bobbin tube under pressure, said checking pin limiting the width of the end winding in the direction towards said one end of said bobbin tube.
  • a device according to claim 2, said checking pin being located and extending at an acute angle to the surface of said bobbin tube end.
  • checking pin is provided with a conical head provided with an enlarged end face, the edge of said end face engaging the bobbin tube when the end winding is applied.
  • a device and means movably mounting said yarn guide plate and said winding separator member for movement in a direction towards the bobbin.
  • a method of applying a separate end winding to the the end of wound bobbins and cops comprising the steps of, continuously winding a continuous strand of yarn to form a multiple turn yarn pile adjacent one end of a bobbin while simultaneously maintaining at least the peripheral turns of said pile in separate sections on opposite sides of a recess having side wall portions defined by spaced turns of said pile tensioned for movement toward one another, then directing an incoming end portion of said continuous strand into said recess, while maintaining at least the peripheral turns of said pile in separate sections, and thereafter ceasing to maintain the peripheral turns of said pile in separate sections, whereby said wall portions collapse and at least said spaced turns of said pile move toward one another thereby embedding said end portion of said continuous strand in said pile.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Winding Filamentary Materials (AREA)
US818408A 1958-06-10 1959-06-05 Method of and device for applying an end winding at the top of wound weft bobbins and cops Expired - Lifetime US3037716A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH3037716X 1958-06-10

Publications (1)

Publication Number Publication Date
US3037716A true US3037716A (en) 1962-06-05

Family

ID=4573605

Family Applications (1)

Application Number Title Priority Date Filing Date
US818408A Expired - Lifetime US3037716A (en) 1958-06-10 1959-06-05 Method of and device for applying an end winding at the top of wound weft bobbins and cops

Country Status (5)

Country Link
US (1) US3037716A (enrdf_load_stackoverflow)
CH (1) CH359641A (enrdf_load_stackoverflow)
DE (1) DE1137985B (enrdf_load_stackoverflow)
FR (1) FR1226932A (enrdf_load_stackoverflow)
NL (2) NL101702C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216667A (en) * 1963-07-25 1965-11-09 Leesona Corp Winding machine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278309B (de) * 1960-11-15 1968-09-19 Reiners Walter Dr Ing Vorrichtung zum Festlegen der Fadenenden an Textilspulen
DE1277090B (de) * 1961-05-16 1968-09-05 Reiners Walter Dr Ing Verfahren und Vorrichtung zum Festlegen des Fadenendes an einer Garnspule
DE1248159B (de) * 1964-09-10 1967-08-24 Standard Elektrik Lorenz Ag Vorrichtung an Wickelmaschinen mit umlaufendem Fadenfuehrer fuer elektrische Spulen
DE3483482D1 (de) * 1983-05-20 1990-11-29 Rieter Ag Maschf Vorrichtung zum einlegen von spulenhuelsen.
US4595151A (en) * 1984-05-18 1986-06-17 Rieter Machine Works, Ltd. Bobbin inserting device
DE4202962A1 (de) * 1992-02-01 1993-08-05 Schlafhorst & Co W Vorrichtung zum bilden einer fadenreserve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1179459A (en) * 1915-01-14 1916-04-18 Crompton & Knowles Loom Works Winding-machine.
US1334427A (en) * 1918-06-29 1920-03-23 Jenckes Spinning Company Winding-machine
GB142298A (en) * 1919-05-05 1920-05-06 Thomas Andrew Improvements in bobbins, cops or like bodies of yarn and in the winding of and mechanism for winding such bobbins, cops, or like bodies of yarn in ring spinning machinesand other machines having ring rails or other yarn guiding means moved like ring rails
US1572157A (en) * 1925-09-09 1926-02-09 Louis Malina Yarn winding
US1614879A (en) * 1920-07-14 1927-01-18 Barber Colman Co Method of spinning
US2395891A (en) * 1943-10-14 1946-03-05 American Viscose Corp Yarn package
US2695138A (en) * 1949-07-06 1954-11-23 Abbott Worsted Mills Inc Winding machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2650769A (en) * 1946-06-13 1953-09-01 Draper Corp Bunch building method and apparatus
DE1001166B (de) 1952-02-01 1957-01-17 Richard Carl Guetermann Verfahren zur Herstellung einer bewickelten Spule mit festgelegtem Fadenanfang und -ende sowie Spulmaschine zur Durchfuehrung des Verfahrens

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1179459A (en) * 1915-01-14 1916-04-18 Crompton & Knowles Loom Works Winding-machine.
US1334427A (en) * 1918-06-29 1920-03-23 Jenckes Spinning Company Winding-machine
GB142298A (en) * 1919-05-05 1920-05-06 Thomas Andrew Improvements in bobbins, cops or like bodies of yarn and in the winding of and mechanism for winding such bobbins, cops, or like bodies of yarn in ring spinning machinesand other machines having ring rails or other yarn guiding means moved like ring rails
US1614879A (en) * 1920-07-14 1927-01-18 Barber Colman Co Method of spinning
US1572157A (en) * 1925-09-09 1926-02-09 Louis Malina Yarn winding
US2395891A (en) * 1943-10-14 1946-03-05 American Viscose Corp Yarn package
US2695138A (en) * 1949-07-06 1954-11-23 Abbott Worsted Mills Inc Winding machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216667A (en) * 1963-07-25 1965-11-09 Leesona Corp Winding machine

Also Published As

Publication number Publication date
FR1226932A (fr) 1960-08-18
NL101702C (enrdf_load_stackoverflow)
DE1137985B (de) 1962-10-11
NL240039A (enrdf_load_stackoverflow)
CH359641A (de) 1962-01-15

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