US3608843A - Method and apparatus for the pneumatic removal of the foot winding or lap from cops - Google Patents

Method and apparatus for the pneumatic removal of the foot winding or lap from cops Download PDF

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Publication number
US3608843A
US3608843A US828975A US3608843DA US3608843A US 3608843 A US3608843 A US 3608843A US 828975 A US828975 A US 828975A US 3608843D A US3608843D A US 3608843DA US 3608843 A US3608843 A US 3608843A
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US
United States
Prior art keywords
foot
cop
lap
suction tube
airstream
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
US828975A
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English (en)
Inventor
Wernfried Siedlich
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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Filing date
Publication date
Application filed by Machinenfabrik Schweiter AG filed Critical Machinenfabrik Schweiter AG
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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
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/086—Preparing supply packages
    • 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 novel method and apparatus for pneumatically removing the foot winding or Ilap from spinning cops or bobbins is disclosed.
  • the method aspects of the invention contemplate exposing the foot lap, as the cop rotates, to an airstream over a portion of its circumference, the airstream acting upon the section of the foot lap in an essentially axial direction.
  • the novel apparatus comprises a rotatable support and clamping installation for replaceably receiving the cop as well as a suction tube for surrounding the free end of the cop.
  • the suction tube is tapered in the area of the cop foot and is closed off by a bottom portion at the conical end thereof, the bottom portion having a nozzlelike opening eccentrically disposed outside of the axis of the suction tube, the opening being aligned with the foot lap section acted upon by the airstream when a cop is inserted in the suction tube.
  • the instant invention generally relates to the removal of foot lap from cops and specifically concerns a novel method and apparatus for pneumatically removing the foot laps from spinning cops or bobbins.
  • the foot lap which represents a plastically or deformably shapeable ring
  • the foot lap section which was first acted upon by the airstream is moved forward.
  • the foot lap section following the cop in a rotational direction is moved, and so forth, until the foot lap has reached the edge of the supporting means whereupon it jumps off the supporting means and whereafter the yarn is then forcibly carried along by the airstream.
  • the yarn windings of the foot lap are widened such that the foot lap is additionally loosened relative to its supporting means which serves to further facilitate the onward moving of the foot lap sections in each stepwise operation.
  • the instant invention also concerns and discloses a novel apparatus for carrying out the above-described method for pneumatically removing foot lap from cops.
  • This novel apparatus itself is equipped with a rotatable support and clamping installation serving to replaceably receive the cop and is further equipped with a suction tube surrounding the free end of the cop.
  • this apparatus is characterized such that the suction tube is tapered in the area of the cop foot and is further closed ed by a bottom portion at its conical end.
  • the bottom portion has a nozzlelike or jetlike opening disposed outside or eccentrically of the axis of the suction tube, this opening being aligned with the foot lap section acted upon by the airstream when a cop is inserted into the suction tube.
  • the nozzlelike or jetlike opening provided eccentrically in the bottom portion of the suction tube permits a concentration of the airstream achieved through suitably aligning the positioning of the nozzle opening with a foot lap section in the area of the foot lap section to be acted upon.
  • the inside of the conical end of the suction tube can be provided with guide surfaces or baffles, such as by setting ofi' or inwardly tapering the cones interior surface, such guide surfaces or baffles being directed toward the nozzle opening.
  • FIG. 1 depicts a perspective illustration, partially in section, of a suction tube constructed in accordance with the instant invention having an inserted cop;
  • FIG. 2 depicts a front plan view of a further embodiment of the inventive suction tube
  • FIG. 3 depicts a side elevational view, partially in cross section, of the novel suction tube depicted in FIG. 2;
  • FIG. 4! schematically depicts a partial illustration of an apparatus for the pneumatic removal of the foot lap from cops, such view being illustrated in cross section.
  • FIG. I For purposes of removing in a pneumatic fashion the foot lap from cops, reference is initially made to FIG. I wherein a suction tube 5 is depicted having a sufficient inside width or diameter so as to surround a cop 6 with radial play. Suction tube 5 exhibits an internal conical shape in the area of the inside end of the cop which also tapers conically. Suction tube 5 is closed off by a bottom portion 7 at its tapered end. Bottom portion 7 is provided with a nozzlelike or jetlike opening b disposed outside or eccentric of the axis of the suction tube, opening 8 being aligned with the section of foot lap 6 which is to be acted upon by the airstream, this feature being particularly well illustrated in FIG. 4.
  • Nozzlelike opening a is provided with a shape which is suitably curved and slit in its circumferential direction.
  • suction tube 5 merges into a suitable suction duct 9 to the side of the bottom portion 7 opposite the cop.
  • the conical end of the suction tube is preferably suitably provided with guide surfaces or bafiles.
  • FIGS. 2 and 3 wherein this type of varied embodiment of the instant invention is depicted.
  • the conical inside surface of the suction tube is set ofi or inwardly tapering so as to achieve a stronger inclination of the surface portion 11 disposed below the nozzle or jet 8 toward the nozzle 8.
  • the jacket of the cylindrical section 5' of the suction tube is preferably constructed such that it can be pivoted or folded out about a suitable hinge joint 12 such that the cop 6 can be inserted into the suction tube 5 from the side.
  • the stroke for loading and unloading the apparatus is substantially shortened as will be described in still further detail hereinbelow.
  • the apparatus as schematically depicted in FIG. 4 for pneumatically removing the foot lap from the cops comprises, in addition to the suction tube 5 having a nozzle 8 and a cutting knife 10' discussed above, a support and clamping device 13 for replaceably taking up the cop 6.
  • the support and clamping device 13 can be seen to comprise a shaft 15 which is set in motion by a drive means 14, shaft 15 suitably rotated in a direction counter to the winding direction of the cop.
  • a centering head 16 is mounted in shaft 15 in an axially displaceable manner against the action of a spring 17.
  • a carriage 19 is disposed on shaft 15 and is axially displaceable against the action of a spring 18.
  • Carriage 19 can be controlled via a linkage 20 disposed on the machine frame 21.
  • three clamping jaws 22 are preferably provided, each clamping jaw being structured as a lever arm and being mounted rotatably at the free end of shaft 15 against spring 23 and support bolt 24.
  • lever arms 22 cooperate with suitable guide surfaces at carriage 19.
  • the support and clamping device 13 is slightly moved to the right by further movement of carriage 19 to the right such that cop 6 is freed by means of its free end from the bottom section 7 of suction sleeve or tube 5.
  • the foot lap 6 can be suctioned off as the cop 6 rotates, and thereafter, the yarn thus suctioned off can be cut off by means of a knife 10' in the above-described manner.
  • untwisting of the foot lap 6 is accomplished with the end of the yarn being clamped firmly, through the rotational direction of cop 6 running counter to the winding direction.
  • suction tube or sleeve 5 and knife 10' along with the nonillustrated loading and unloading means for the cop can be performed in known manner by control members which need not further be described herein for an understandin ofth e instant invention.
  • control members which need not further be described herein for an understandin ofth e instant invention.
  • a method for pneumatically removing the foot lap from cops having a foot comprising the steps of, rotating the cop, exposing the foot lap at the foot of the cop to an airstream as the cop rotates and constraining the airstream in an essentially axial direction upon a portion of the foot lap over a portion of the circumference of the cop, forwardly displacing that circumferential portion of the foot lap exposed to the axially directed airstream in a direction towards the end of the foot of the cop, then as the cop rotates exposing a further circumferential portion of the foot lap trailing the previously forwardly displaced foot lap portion to the axially directed airstream to again forwardly displace such further portion of the foot lap, and repeatedly subjecting the trailing portions of the foot lap during rotation of the cop to the action of the axially directed airstream to loosen windings of the foot lap and finally to move such foot lap completely ofi the foot of the cop.
  • An apparatus for pneumatically removing the foot lap from cops having a foot end, and a head end
  • said apparatus comprising a rotatable support and clamping device for replaceably receiving and rotatably clamping the region of said head end of the cop, a suction tube surrounding said foot end of the cop, said suction tube conically tapering off in the area of said foot end of the cop and being closed ofi" by a bottom portion at its conical end, said bottom portion having a substantially nozzlelike opening outside and eccentric to the axis of said suction tube, said opening being aligned with the foot lap section to be acted upon by the airstream when the cop is inserted in said suction tube.
  • An apparatus pursuant to claim 2 further including a yam-cutting knife disposed on the suction side of said bottom portion immediately following the same.
  • said support and clamping device further includes clamping jaws for the cop, said clamping jaws being operable in dependency upon said axial displacement of said support and clamping device.
  • suction tube comprises a cylindrical jacket foldable in halves.

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  • Spinning Or Twisting Of Yarns (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
US828975A 1968-06-25 1969-05-29 Method and apparatus for the pneumatic removal of the foot winding or lap from cops Expired - Lifetime US3608843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH946568A CH478705A (de) 1968-06-25 1968-06-25 Verfahren und Einrichtung zum pneumatischen Entfernen des Fusswickels von Spinnkopsen

Publications (1)

Publication Number Publication Date
US3608843A true US3608843A (en) 1971-09-28

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Application Number Title Priority Date Filing Date
US828975A Expired - Lifetime US3608843A (en) 1968-06-25 1969-05-29 Method and apparatus for the pneumatic removal of the foot winding or lap from cops

Country Status (6)

Country Link
US (1) US3608843A (enrdf_load_stackoverflow)
AT (1) AT301401B (enrdf_load_stackoverflow)
BE (1) BE734100A (enrdf_load_stackoverflow)
CH (1) CH478705A (enrdf_load_stackoverflow)
FR (1) FR2011621A1 (enrdf_load_stackoverflow)
GB (1) GB1266238A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897022A (en) * 1970-05-18 1975-07-29 Savio Spa Eliminate tail-ends of yarn and to pick up the end of the end of the wound yarn
US4036353A (en) * 1975-07-03 1977-07-19 Maschinenfabrik Schweiter Ag Transfer apparatus for gripping and holding a spinning cop
US4036444A (en) * 1975-07-03 1977-07-19 Maschinenfabrik Schweiter Ag Apparatus for pneumatically separating a foot lap from a spinning cop
US4103836A (en) * 1975-06-25 1978-08-01 W. Schlafhorst & Co. Undoing or removing the thread ends of textile bobbins
US4570867A (en) * 1982-08-06 1986-02-18 W. Schlafhorst & Co. Device for sucking-up and holding a thread
US4619416A (en) * 1983-07-19 1986-10-28 Murata Kikai Kabushiki Kaisha Yarn end finding apparatus
US4660780A (en) * 1984-04-05 1987-04-28 Murata Kikai Kabushiki Kaisha Yarn end finding device
US4911371A (en) * 1987-08-07 1990-03-27 Karl Mayer Textilmaschinenfabrik Gmbh Thread end searching arrangement
US4921179A (en) * 1988-06-24 1990-05-01 W. Schlafhorst & Co. Method and apparatus for positioning a yarn end for unwinding
US6182879B1 (en) * 1998-03-26 2001-02-06 Zinser Textilmaschinen Gmbh Device for moving a thread to a winding sleeve driven by a friction roller
CN105473480A (zh) * 2013-08-29 2016-04-06 村田机械株式会社 纱线拉出装置、纱线卷取装置以及接头方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843553A1 (de) * 1988-12-23 1990-07-05 Schlafhorst & Co W Garnlieferaggregat eines spulautomaten
EP3650381B1 (en) * 2018-11-08 2024-06-05 Lakshmi Machine Works Ltd. Broken yarn picking arrangement for ring spinning machine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755857A (en) * 1950-12-27 1956-07-24 Reiners Walter Apparatus for removing an end of a thread from a spool
US3059866A (en) * 1957-04-20 1962-10-23 Reiners Walter Method and means for readying spinning cops
US3136494A (en) * 1956-10-18 1964-06-09 Reiners Walter Method and means for preparing spinning cops for rewinding
FR1399262A (fr) * 1964-06-19 1965-05-14 Konink Textielfabrikenen Nijve Procédé et dispositif pour démêler et dérouler les extrémités de fil d'une canette
US3203634A (en) * 1961-12-11 1965-08-31 Reiners Walter Suction device for removing a starting length of yarn from a textile coil
US3236464A (en) * 1962-02-03 1966-02-22 Reiners Walter Device for removing a starting length of yarn from a textile coil
US3355118A (en) * 1965-05-26 1967-11-28 Reiners Walter Device for removing a foot bunch of yarn from a cop
US3373948A (en) * 1965-12-02 1968-03-19 Reiners Walter Method and device for pneumatically removing the tip or foot bunch from supply coils
US3406920A (en) * 1966-02-17 1968-10-22 Reiners Walter Device for releasing the starting end of a coil-wound thread held fast by a reserve winding

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2755857A (en) * 1950-12-27 1956-07-24 Reiners Walter Apparatus for removing an end of a thread from a spool
US3136494A (en) * 1956-10-18 1964-06-09 Reiners Walter Method and means for preparing spinning cops for rewinding
US3059866A (en) * 1957-04-20 1962-10-23 Reiners Walter Method and means for readying spinning cops
US3203634A (en) * 1961-12-11 1965-08-31 Reiners Walter Suction device for removing a starting length of yarn from a textile coil
US3236464A (en) * 1962-02-03 1966-02-22 Reiners Walter Device for removing a starting length of yarn from a textile coil
CH411648A (de) * 1962-02-03 1966-04-15 Reiners Walter Dr Ing Pneumatisches Verfahren und Vorrichtung zum Aufsuchen und Abziehen des Fadenanfanges einer ganz oder teilweise gefüllten Textilspule
FR1399262A (fr) * 1964-06-19 1965-05-14 Konink Textielfabrikenen Nijve Procédé et dispositif pour démêler et dérouler les extrémités de fil d'une canette
US3355118A (en) * 1965-05-26 1967-11-28 Reiners Walter Device for removing a foot bunch of yarn from a cop
US3373948A (en) * 1965-12-02 1968-03-19 Reiners Walter Method and device for pneumatically removing the tip or foot bunch from supply coils
US3406920A (en) * 1966-02-17 1968-10-22 Reiners Walter Device for releasing the starting end of a coil-wound thread held fast by a reserve winding

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897022A (en) * 1970-05-18 1975-07-29 Savio Spa Eliminate tail-ends of yarn and to pick up the end of the end of the wound yarn
US4103836A (en) * 1975-06-25 1978-08-01 W. Schlafhorst & Co. Undoing or removing the thread ends of textile bobbins
US4036353A (en) * 1975-07-03 1977-07-19 Maschinenfabrik Schweiter Ag Transfer apparatus for gripping and holding a spinning cop
US4036444A (en) * 1975-07-03 1977-07-19 Maschinenfabrik Schweiter Ag Apparatus for pneumatically separating a foot lap from a spinning cop
US4570867A (en) * 1982-08-06 1986-02-18 W. Schlafhorst & Co. Device for sucking-up and holding a thread
US4619416A (en) * 1983-07-19 1986-10-28 Murata Kikai Kabushiki Kaisha Yarn end finding apparatus
US4660780A (en) * 1984-04-05 1987-04-28 Murata Kikai Kabushiki Kaisha Yarn end finding device
US4911371A (en) * 1987-08-07 1990-03-27 Karl Mayer Textilmaschinenfabrik Gmbh Thread end searching arrangement
US4921179A (en) * 1988-06-24 1990-05-01 W. Schlafhorst & Co. Method and apparatus for positioning a yarn end for unwinding
US6182879B1 (en) * 1998-03-26 2001-02-06 Zinser Textilmaschinen Gmbh Device for moving a thread to a winding sleeve driven by a friction roller
CN105473480A (zh) * 2013-08-29 2016-04-06 村田机械株式会社 纱线拉出装置、纱线卷取装置以及接头方法

Also Published As

Publication number Publication date
AT301401B (de) 1972-09-11
CH478705A (de) 1969-09-30
FR2011621A1 (enrdf_load_stackoverflow) 1970-03-06
DE1922879A1 (de) 1970-04-02
GB1266238A (enrdf_load_stackoverflow) 1972-03-08
BE734100A (enrdf_load_stackoverflow) 1969-11-17

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