US3803673A - Device for removing yarn remainders from coil cores - Google Patents

Device for removing yarn remainders from coil cores Download PDF

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Publication number
US3803673A
US3803673A US00160677A US16067771A US3803673A US 3803673 A US3803673 A US 3803673A US 00160677 A US00160677 A US 00160677A US 16067771 A US16067771 A US 16067771A US 3803673 A US3803673 A US 3803673A
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US
United States
Prior art keywords
yarn
coil core
stripping means
coil
core
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
US00160677A
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English (en)
Inventor
W Kupper
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Application granted granted Critical
Publication of US3803673A publication Critical patent/US3803673A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H73/00—Stripping waste material from cores or formers, e.g. to permit their re-use
    • 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

  • Devices of this general type have as their function to make coil cores of all types employed in the textile industry reusable by removing therefrom all yarn remainders still adhering thereto which have not been completely used up during the working process or whose further processing is no longer profitable.
  • a device for removing a yarn remainder from a coil core comprising yarn stripping means accommodated to the diameter of a respective coil core, the coilcore and the yarn stripping means being relatively displaceable in the direction of the longitudinal axis of the coil core, the yarn stripping means including means for effecting the relative displacement of the coil core and the yarn stripping means in stair stepwise manner.
  • the remainder yarns caught between the core shaft and the yarn stripper are time and again freed during the shoving or shifting operation and, in the subsequent shoving stroke are reliably engaged by the yarn stripper and further shoved along the shaft of the coil core.
  • the removal of a yarn remainder loosened from a coil core shaft by the vocational stepwise relative displacement of a coil core and yarn stripper can be appreciably accelerated by a blast of air current directed toward the yarn remainder and/or a suction device for taking up the yarn remainder coordinated with the free end of the coil core.
  • the yarn stripping means comprises a plurality of yarn strippers each having separate means for guiding relative displacement of the coil core and the respective yarn stripper in the successive stepwise manner.
  • the yarn strippers are serially disposed along a line substantially perpendicular to the longitudinal axis of the coil core for successively acting upon the yarn remainder on the coil core, the guiding means of each of the yarn strippers comprising a member having guiding contours for guiding the coil core relative to the respective yarn stripper.
  • the yarn stripping means comprises a stationary stop member, and a displaceable stop member movable into a position wherein it has a surface substantially coplanar with a surface of the stationary stop member, each of the stop members being formed with substantially semicircular notches in the surfaces thereof, respectively, both of the stop members together constituting an apertured partition having a substantially circular aperture formed by both of the substantially semicircular notches.
  • the coilcores can consequently slide over the stationary stop member of the yarn stripper forming the lower half of the aperturcd partition, while the upper movable stop member of the stripper moves aside.
  • both stop members of the stripper relative to one another are of such dimension that, especially for conical coil cores the greatest possible lines of contact at the periphery of the core shaft, even for relatively large deviations in diameter, are provided.
  • the movable stop member is turnable about a center of rotation so disposed that any force applied by the yarn remainder on the movable stop member produces no lifting component but rather a component directed toward the core shaft. It is furthermore advantageous, in accordance with the invention, to provide a plunger engageable with the tip of the coil core for displacing the coil core in the axial direction thereof through the yarn stripper.
  • FIG. 1 is a side elevational view of the device for removing yarn remainders from coil cores according to the invention
  • FIG. 2 is a fragmentary, enlarged top plan view of FIG. 1;
  • FIG. 3 is a fragmentary end elevational view of FIG. 2 as seen from the right hand side thereof;
  • FIG. 4 is a side elevational view of a detail of FIG. 2.
  • FIG. 1 there is shown a device for removing yarn remainders from coil cores according to the invention which includes an upright frame wall 1 on which rollers 2, 3 and 4 are rotatably mounted.
  • the roller 2 is driven stepwise in the direction of the arrow 6 by a suitable transmission or gear train and accordingly displaces a conveyor belt 7 provided with coil-carrying troughs 8 in direction of the arrow 9.
  • Adjacent the roller 2 there is provided a supply container 10 for coil cores 1 I wound with yarn remainders 13, such as partly depleted spinning cops 01' the like;
  • a conveyor belt 12 is located below the roller 4 which supplies the coil cops 11.
  • the coil cores l1 On their path to'the conveyor belt 12, the coil cores l1 initially drop into the troughs 8 from the supply. container 10 and are fed by the conveyor belt 7 stepwise to yarn strippers 14.
  • four yarn strippers 14 are located one-after the other and are formed of a lower stationary part 15 and upper pivotally mounted parts 16 which are beveled at one side thereof (note FIG. 4) and are thereby able to be raised by the coil cores 1 1 proper as the latter are transported from one stripper 14 to the other.
  • the ends of the coil cores 11 are all maintained at the same level by a guide rail 17.
  • An air nozzle 18 is located above the roller 4 and blows a yarn remainder, that has been loosened by the strippers 14, in direction toward a collecting hopper or funnel 19 whose collecting capability may be enhanced by providing air suction flow therethrough.
  • the collecting hopper 19 is connected by a pipe 20 with a receptacle 21 from which accummulating yarn remainders can be removed from time to time.
  • the forced air flow blown through the nozzle 18 and suction air flow drawn through the collecting hopper 19 are produced by a fan or blower 22. In the interest of clarity, those members which press the ends of the coil cores 11 against the yarn strippers 14 are not shown in FIG. 1.
  • FIG. 2 In the enlarged fragmentary view of FIG. 2, the members pressing the ends of the coil cores 1] against the yarn strippers 14 are shown as being reciprocating rams or plungers 23.
  • FIG. 2 there are shown in greater detail the coil cores ll wound with yarn remainder 13, as well as the aforementioned troughs 8, into which the coil cores 11 are fed, which are secured to the conveyor belt 7.
  • the yarn strippers 14 in the embodiment shown in the drawing are disposed in series along a line extending in the direction perpendicular to the axes of the coil cores 11 as the latter are carried in the troughs 8, and the pivotable members 16 of the strippers 14 are pivotably mounted on a shaft 25.
  • Each of the strippers 14 is coordinated with a stop member 26 having a guiding contour 27.
  • the coil cores ll progress from the right-hand side to the lefthand side of the figure in direction of the arrow 9, as the conveyor belt 7 and the troughs 8 carried thereby and containing the coil cores 1 1 move in that direction. In the initial position of the coil core 11 at the righthand side of FIG.
  • the foot of the coil core is located in the first yarn stripper 14 at the right-hand side of the figure.
  • the coil core foot is shoved by the plunger 23 against the stop member 26 into the position 11' thereof shown in phantom.
  • the yarn remainder 13 carried by the coil core 11 is prevented by the members 15 and 16 of the stripper 14from sliding with the coil core end toward the position 1 l thereof and the windings thereof are caused to slide together somewhat and to loosen.
  • the foot of the coil core 11 is guided back along the guiding contour 27 to the position shown at the second stripper 14 on the right-hand side of FIG. 2. Due to the vocational step displacement produced thereby, an intermediate space 28 is formed 7 between the members 15 and 16, on the one hand, and
  • the intermediate space 28 is thus either free of yarn or affords space for threads that have fallen between the members 15 and 16 of the stripper 14 when the coil core 11 was inserted or when the yarn remainder 13 was initially bunched together by the first stripper 14. In the succeeding vocational step-like stripping movements even these threads of the yarn remainder are reliably shoved away by the front side of the next succeeding stripper 14. The process is repeated with the next-following strippers 14, which can be of such number as to ensure the loosening of all possible types of yarn remainder windings from the shaft of the coil core when it has passed the last stripper 14. As can be seen in FIG.
  • the coil core 11 remains in its trough 8 on the conveyor belt 7 while the previously loosened yarn remainder is blown by an'air current from the nozzle 18 towards and into the collecting hopper 19.
  • the conically narrowing shape of the coil cores 11 from foot to tip thereof facilitates the loosening and removing of the yarn remainders since the diameters of the originally wound turns thereof appear increasingly greater to the decreasing diameter of the conical core 14 as the yarn remainders are initially shoved by the yarn strippers l4 and then by the air jet from the nozzle 18 toward the narrowing tip of the core 14.
  • the stroke of plungers 23 are capable of being produced by conventional devices such as cam discs or the like.
  • the stroke movements of plungers 23 may be carried out in the direction of the double arrow 24, indicated in FIG. 3, by cam discs 32 which are affixed to a shaft 33.
  • the plungers 23 are mounted for axial movement in bearing blocks 34 and are biased against the cam discs 32 by means of pressure springs 35.
  • the shaft 33 is rotatably mounted in bearing blocks 36 and may be driven off of the gear train 5 shown in FIG. 1 through a drive member 37 and a pulley or disc 38 in synchronism with the conveyor belt 7.
  • FIG. 3 there is shown in end view especially clearly how the coil core 11 is guided during the yarn stripping operation.
  • the foot of the coil core 11 is disposed between the stationary member 15 and the pivotable member 16 of a yarn stripper l4, and the core tip is supported on the guide rail 17.
  • the center of rotation of the shaft is so disposed that the force exerted by the yarn remainder 13 against the pivotable member 16 cannot raise the latter from the shaft of the coil core 11 because a moment acting in a direction toward the shaft of the coil core 1 1 is produced.
  • FIG. 4 it is shown that the members 15 and 16 of the yarn stripper 14 are formed with respective recesses 29 and 30 thereby constituting together an apertured partition.
  • a plurality of mutually spaced yarn stripping means accommodated to the diameter of a respective coil core, means for advancing the coil core from one to another of said plurality of yarn stripping means, means for effecting relative displacement between said coil core and each of said stripping means in one direction parallel of the longitudinal axis of the coil core to loosen said yarn remainder on said coil core, the relative displacement between the coil core and the respective stripping means being successively greater as the coil core is advanced from one to another thereof, and guide means for effecting relative displacement between said coil core and each of said stripping means in an opposite direction to thereby effect vocational displacement of said coil core and said yarn stripping means.
  • each of said yarn stripping means comprises a stationary stop member, and a displaceable stop member movable into a position wherein it has a surface substantially coplanar with a surface of said stationary stop member, each of said stop members being formed with substantially semicircular notches in said surfaces thereof, respectively, both of said stop members together constituting an apertured partition having a substantially circular aperture formed by both of said substantially semicircular notches.
  • each of said guide means comprises a contoured element engaging the longitudinal end of said coil core, said contoured element having one portion offset relative to another portion thereof in' a direction parallel to the longitudinal axis of said coil core.
  • each of said yarn stripping means have separate means for effecting relative displacement of the coil core and the respective yarn stripping means.
  • each of said yarn stripping means are serially disposed along a line substantially perpendicular to the longitudinal axis of the coil core for successively acting upon the yarn remainder on the coil core, said guide means being provided for effecting relative displacement between each of said coil cores and each of said yarn stripping means and comprising a respective member having guiding contours for guiding and displacing the coil core relative to the respective yarn stripping means.

Landscapes

  • Spinning Or Twisting Of Yarns (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US00160677A 1970-07-08 1971-07-08 Device for removing yarn remainders from coil cores Expired - Lifetime US3803673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2033718A DE2033718C3 (de) 1970-07-08 1970-07-08 Vorrichtung zum Entfernen von auf Spulenhülsen befindlichen Garnresten

Publications (1)

Publication Number Publication Date
US3803673A true US3803673A (en) 1974-04-16

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ID=5776056

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US00160677A Expired - Lifetime US3803673A (en) 1970-07-08 1971-07-08 Device for removing yarn remainders from coil cores

Country Status (7)

Country Link
US (1) US3803673A (fr)
JP (1) JPS4826813B1 (fr)
BE (1) BE769586A (fr)
CH (1) CH525832A (fr)
DE (1) DE2033718C3 (fr)
FR (1) FR2100248A5 (fr)
GB (1) GB1361824A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148665A (en) * 1990-04-28 1992-09-22 Kabushiki Kaisha Murao And Company Roving bobbin carrier system
US5220714A (en) * 1991-03-22 1993-06-22 Kabushiki Kaisha Murao And Company Apparatus for removing residual roving from roving bobbin
US6470543B1 (en) 1999-07-27 2002-10-29 Vetrotex Deutschland Gmbh Method of and apparatus for removing yarn residue from tubes carrying same
CN102795515A (zh) * 2011-05-24 2012-11-28 常州市创信知识产权代理有限公司 废丝筒管剥皮机
US20150175380A1 (en) * 2013-12-20 2015-06-25 Rieter Cz S.R.O. Method for Removal of Yarn, Especially Faulty Yarn, from Inter-Storage of Yarn at Operating Unit of Textile Machine and Device for Carrying out the Method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0053090A1 (fr) * 1980-11-20 1982-06-02 Felix Mannhart AG Procédé et dispositif d'élimination de reste de fil sur une bobine
GB2301379A (en) * 1995-05-13 1996-12-04 Technological Research Company Apparatus for stripping yarn from textile tubes

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US993422A (en) * 1909-09-04 1911-05-30 Norman Dixon Walker Apparatus for stripping waste off single-headed tubes, bobbins, or pirns.
US1097943A (en) * 1913-08-04 1914-05-26 Draper Co Bobbin-stripping device.
US1097942A (en) * 1912-09-17 1914-05-26 Draper Co Bobbin-stripping apparatus.
US1183116A (en) * 1913-12-27 1916-05-16 Draper Co Bobbin-stripping device.
US1761695A (en) * 1929-03-21 1930-06-03 Charles H Robertson Quill-cleaning machine
US2036405A (en) * 1933-06-23 1936-04-07 Henry A Gale Bobbin stripper
DE669425C (de) * 1937-02-16 1938-12-24 Rudolf Horn Vorrichtung zum Abziehen der Garnreste von Koetzerspulen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US993422A (en) * 1909-09-04 1911-05-30 Norman Dixon Walker Apparatus for stripping waste off single-headed tubes, bobbins, or pirns.
US1097942A (en) * 1912-09-17 1914-05-26 Draper Co Bobbin-stripping apparatus.
US1097943A (en) * 1913-08-04 1914-05-26 Draper Co Bobbin-stripping device.
US1183116A (en) * 1913-12-27 1916-05-16 Draper Co Bobbin-stripping device.
US1761695A (en) * 1929-03-21 1930-06-03 Charles H Robertson Quill-cleaning machine
US2036405A (en) * 1933-06-23 1936-04-07 Henry A Gale Bobbin stripper
DE669425C (de) * 1937-02-16 1938-12-24 Rudolf Horn Vorrichtung zum Abziehen der Garnreste von Koetzerspulen

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5148665A (en) * 1990-04-28 1992-09-22 Kabushiki Kaisha Murao And Company Roving bobbin carrier system
US5220714A (en) * 1991-03-22 1993-06-22 Kabushiki Kaisha Murao And Company Apparatus for removing residual roving from roving bobbin
US6470543B1 (en) 1999-07-27 2002-10-29 Vetrotex Deutschland Gmbh Method of and apparatus for removing yarn residue from tubes carrying same
CN102795515A (zh) * 2011-05-24 2012-11-28 常州市创信知识产权代理有限公司 废丝筒管剥皮机
CN102795515B (zh) * 2011-05-24 2014-11-26 常州市创信知识产权代理有限公司 废丝筒管剥皮机
US20150175380A1 (en) * 2013-12-20 2015-06-25 Rieter Cz S.R.O. Method for Removal of Yarn, Especially Faulty Yarn, from Inter-Storage of Yarn at Operating Unit of Textile Machine and Device for Carrying out the Method
US9884739B2 (en) * 2013-12-20 2018-02-06 Rieter Cz S.R.O. Method for removal of yarn, especially faulty yarn, from inter-storage of yarn at operating unit of textile machine and device for carrying out the method

Also Published As

Publication number Publication date
GB1361824A (en) 1974-07-30
DE2033718B2 (de) 1978-06-22
FR2100248A5 (fr) 1972-03-17
BE769586A (fr) 1971-11-16
JPS4826813B1 (fr) 1973-08-16
DE2033718C3 (de) 1979-02-08
CH525832A (de) 1972-07-31
DE2033718A1 (de) 1972-01-20

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