US3355118A - Device for removing a foot bunch of yarn from a cop - Google Patents

Device for removing a foot bunch of yarn from a cop Download PDF

Info

Publication number
US3355118A
US3355118A US549912A US54991266A US3355118A US 3355118 A US3355118 A US 3355118A US 549912 A US549912 A US 549912A US 54991266 A US54991266 A US 54991266A US 3355118 A US3355118 A US 3355118A
Authority
US
United States
Prior art keywords
yarn
cop
foot
bunch
tube
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
US549912A
Other languages
English (en)
Inventor
Kupper Wilhelm
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3355118A publication Critical patent/US3355118A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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

  • the finally-wound length of yarn on cops and like bobbins coming from a spinning machine extends from the tip of the cop in relatively steep helical turns about the body of yarn down to the foot of the tubular core or quill carrying the yarn. A number of further turns are wound onto the foot, thereby forming a reserve winding of yarn or so-called foot bunch.
  • the foot bunch must be removed to obtain a fairly straight starting length of yarn capable of being seized for commencing the unwinding of yarn from the cop.
  • the opening of the suction tube acting as a suction nozzle for inducting the foot bunch, has a width smaller than the diameter of the body of yarn wound on the cop but larger than the diameter of the tubular core or quill of the cop.
  • the suction tube is removed, by relative motion between tube and cop, a sufficient distance to permit entry of a scissors-type cutter into the free space between the tube and the cop for severing the length of yarn which has been sucked away.
  • Another object of the invention is to render readying devices of the above-mentioned type more reliable and considerably less susceptible to mechanical trouble.
  • the device for readying the cop by removing a foot bunch therefrom comprises a pneumatic suction tube of curved, preferably U-shaped configuration, having a nozzle end engageable over the foot portion of the cop and a nozzle opening of width larger than the core diameter but smaller than the yarn-body diameter of the cop to be readied; and I further provide stationary yarn severing means mounted in the bight of the curved tube and engageable by yarn from the foot bunch sucked into the tube, the
  • the heretofore necessary relative motion between the severing cutter and the suction tube as well as the control mechanism needed for the control of such relative motion are eliminated.
  • the curvature of the tube has the effect of forcing the yarn, under the suction produced by an air current, into the vicinity of and directly against the severing means.
  • the cop and suction tube are thereafter disengaged from one another, the yarn is stressed and the excessive length thereof is separated at and by the severing device despite the fact that the severing device remains stationary.
  • the entire construction of the readying device is greatly simplified.
  • the severing means need no longer consist of scissors but may be formed simply of a cutting edge or preferably of several cutting edges forming an angle between each other similar to the angle between the legs of open scissors.
  • the yarn is then automatically severed when, for example, the cop is being moved out of the suction tube opening.
  • a control mechanism for actuating the severing device is likewise unnecessary.
  • the curved suction tube is preferably provided with a longitudinal slot formed in the inner bight side thereof, i.e. at the locality of the smallest radius of curvature, and the severing device is placed opposite the slot outside of the tube.
  • the yarn which is pneumatically pulled off the cop will pass through the slot of the suction tube thus forming at the slot a chord of the curvature, so that the yarn is readily and reliably placed against or into the severing device. Since the severing device is mounted outside of the suction tube, it can be more readily inspected or replaced, for example when its cutting edge has become dull or has to be cleaned.
  • the free end of the foot bunch may become entangled with the original starting or inner end of the yarn wound upon the cop, this inner end being located beneath the wound-up body of yarn and extending freely away from the foot of the core close to the outer end of the yarn.
  • Such entanglement of the inner and outer ends of yarn may aggrevate the proper removal of the foot bunch.
  • the removal of the foot bunch is further facilitated by providing the suction tube opening with barbs whose free points face in the direction of flow of the suction air current.
  • any twisting between the inner and outer ends of yarn is torn open mechanically by the barbs, and the foot bunch can then be reliably removed by the current of air.
  • FIG. 1 is a sectional view of the device constructed in accordance with my invention, shown in conjunction with a cop whose foot bunch is not yet removed;
  • FIG. 2 is a similar view of the device as in FIG. 1 but in a subsequent operating stage in which the foot bunch has been removed and the cop has been moved out of the nozzle opening of the device;
  • FIG. 3 is a plan view of the cutting device of FIGS. 1 and 2.
  • the cop 1 has an outer length of yarn extending from the tip end over the body of yarn in steep helical turns 2 down to the foot 20 of the tubular core where the yarn forms a reserve winding or foot bunch 3.
  • the starting or inner end of yarn 2b extends from beneath the yarn body and beneath the foot bunch 3.
  • the outer end of the yarn terminates in a short length at 2a.
  • the inner end 212 and the outer end 2a may become twisted together if they are too long. Any entangled portion of yarn, however, is shown removed in FIG. 1 either by cutting both ends 2a, 212 before placing the cop into the device or by the disentangling effect of the barbs still to be hereinafter described.
  • a collar 4a engages over the body of yarn with ample clearance to leave an annular interspace for the passage of air.
  • the suction tube 4 is provided with a longitudinal slot 5 on its inner bight side where the radius of curvature is smallest.
  • a cutter member 6 which is fastened to the collar 4a of the suction tube by means of a screw 7.
  • the nozzle opening of the tube 4 located at the bottom of the collar 4a has a width smaller than the diameter of the yarn body but larger than the diameter of the core foot 20. Consequently, when the cop is fully inserted, the yarn body rests against an annular shoulder formed at the bottom of the collar 4a.
  • the circular nozzle opening is provided with a number of peripherally distributed barbs 8 whose points are directed inwardly with respect to the nozzle opening and in the direction of the air flow.
  • FIG. 2 illustrates a stage in which the foot bunch is removed and the cop 1 is being lifted away from the nozzle tube 4.
  • the yarn end 2a is now lengthened and pulled through the slot 5 into the severing member 6.
  • the yarn end 20 is cut by the member 6.
  • the embodiment of the severing device shown in FIG. 3 is formed by three blades 6a, 6b, 60, such as safety razor blades.
  • the blades 6a and 6c are located one above the other, and the blade 6b is mounted between the two others. According to FIG. 2, the yarn then is pulled into the angle formed between the cutting edges of the blades 6a, 6b and 60.
  • the severing device need not be formed of cutting means.
  • the severing device may also be formed of clamping members in which the yarn is clamped fast so that it will be torn when the cop is being removed.
  • the removal of foot bunches from cops in a device according to the invention is preferably effected as follows:
  • the suction tube is fixedly mounted on the fabricating machine, for example a yarn winding machine, in
  • the cop which the cop is to be used.
  • the cop is inserted from above into the suction nozzle and is then lifted and lowered a short distance several times.
  • This provides several advantages.
  • the lifting and lowering as mentioned above, loosens any twisting of the yarn ends 2a and 2b as may be present at the cop foot.
  • the repeated closing and opening of the nozzle opening produces a shock current of air which promotes the removal of the foot bunch from the core.
  • the subsequent removal of the cop from the suction tube opening causes severing of the sucked-off length of yarn automatically without any special auxiliary or control means, while simultaneously greatly shortening the remaining steep turns of yarn leading to the tip of the cop.
  • the device according to the invention is advantageously applicable with automatic as well as non-automatic winding machines.
  • nonautomatic winding machines the invention offers the advantage that the attending person need only push the cop several times briefly into the suction tube opening in order to eliminate the foot bunch, without the necessity of previously pulling the bunch off the cop by a rather time-consuming operation.
  • automatic winding machines the invention has the further advantage that it may be mounted along a conveyor which carries the cops to the individual winding stations, so that the cops are sequentially liberated from their respective foot bunches, that is, a device according to the invention may take the place of a readying device as shown in Patent No. 3,043.- 529 with the result of simplifying and improving the construction and performance of the readying equipment.
  • a device for readying a cop by removing a foot bunch therefrom comprising a pneumatic suction tube of curved shape forming a bight, said tube having a nozzle end adapted to receive the foot portion of the cop to be readied and having a nozzle opening of a diametrical size between the diametrical sizes of the respective core and yarn-doby of the cop, and yarn severing means securely mounted in the bight of said tube, said yarn severing means and yarn from the foot bunch of the cop being mutually engageable for severing the yarn.
  • said suction tube being substantially U-shaped and having a longitudinal slot in the inward side of its bight whereby the suction pulls the yarn through said slot, said severing means being mounted outside said tube and opposite said slot in the suction path of the yarn.
  • said severing means comprising two blades with respective cutting edges forming an angle between each other having its vertex opposite said slot, said edges extending from said vertex toward said tube in a plane transverse to the longitudinal direction of said slot.
  • a cop readying device comprising barbs mounted on said tube and distributed about said nozzle opening, said barbs having their respective tips pointing in the suction direction of said tube.
  • said nozzle end of said curved suction tube having a collar protruding axially beyond said nozzle opening and having a larger diameter than said yarn body so as to form an annular interspace when the cop is being inserted into said collar, said tube having an inwardly protruding annular shoulder between said collar and said nozzle opening, said shoulder forming an abutment for the yarn body of the cop being readied; and said severing means 5 6 comprising a cutter blade mounted on said collar at the 3,043,529 7/1962 Furst 2-4-235.6 outward side thereof. 3,059,866 10/ 1962 Reiners 24235 .6 References Cited 3,111,280 11/1963 Reiners et a1.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US549912A 1965-05-26 1966-05-13 Device for removing a foot bunch of yarn from a cop Expired - Lifetime US3355118A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER0040719 1965-05-26

Publications (1)

Publication Number Publication Date
US3355118A true US3355118A (en) 1967-11-28

Family

ID=7406147

Family Applications (1)

Application Number Title Priority Date Filing Date
US549912A Expired - Lifetime US3355118A (en) 1965-05-26 1966-05-13 Device for removing a foot bunch of yarn from a cop

Country Status (5)

Country Link
US (1) US3355118A (enrdf_load_html_response)
BE (1) BE681601A (enrdf_load_html_response)
CH (1) CH435068A (enrdf_load_html_response)
DE (1) DE1560567A1 (enrdf_load_html_response)
GB (1) GB1141333A (enrdf_load_html_response)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3559904A (en) * 1968-03-16 1971-02-02 Reiners Walter Device for removing the starting end of a coil-wound textile yarn from the bore of a core on which the coil is wound
US3608843A (en) * 1968-06-25 1971-09-28 Schweiter Ag Maschf Method and apparatus for the pneumatic removal of the foot winding or lap from cops
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
JPS5038597Y1 (enrdf_load_html_response) * 1974-09-04 1975-11-07
JPS5230834U (enrdf_load_html_response) * 1975-08-20 1977-03-04
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
US4660780A (en) * 1984-04-05 1987-04-28 Murata Kikai Kabushiki Kaisha Yarn end finding device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4009319A1 (de) * 1990-03-23 1991-09-26 Schlafhorst & Co W Vorrichtung zum aufsuchen und schneiden von fadenenden am huelsenfuss von spinnkopsen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750125A (en) * 1953-08-14 1956-06-12 Reiners Walter Suction device for holding the thread ends of full bobbins
US2755857A (en) * 1950-12-27 1956-07-24 Reiners Walter Apparatus for removing an end of a thread from a spool
US3043529A (en) * 1957-08-01 1962-07-10 Reiners Walter Apparatus for preparing coils of yarn for further fabrication
US3059866A (en) * 1957-04-20 1962-10-23 Reiners Walter Method and means for readying spinning cops
US3111280A (en) * 1957-08-19 1963-11-19 Reiners Walter Coil winding machine with automatic coil-exchanging and yarn-tying devices
US3203634A (en) * 1961-12-11 1965-08-31 Reiners Walter Suction device for removing a starting length of yarn from a textile coil
US3257083A (en) * 1963-03-26 1966-06-21 Reiners Walter Suction device for withdrawing a starting length of yarn from a textile coil

Patent Citations (7)

* 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
US2750125A (en) * 1953-08-14 1956-06-12 Reiners Walter Suction device for holding the thread ends of full bobbins
US3059866A (en) * 1957-04-20 1962-10-23 Reiners Walter Method and means for readying spinning cops
US3043529A (en) * 1957-08-01 1962-07-10 Reiners Walter Apparatus for preparing coils of yarn for further fabrication
US3111280A (en) * 1957-08-19 1963-11-19 Reiners Walter Coil winding machine with automatic coil-exchanging and yarn-tying devices
US3203634A (en) * 1961-12-11 1965-08-31 Reiners Walter Suction device for removing a starting length of yarn from a textile coil
US3257083A (en) * 1963-03-26 1966-06-21 Reiners Walter Suction device for withdrawing a starting length of yarn from a textile coil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US3559904A (en) * 1968-03-16 1971-02-02 Reiners Walter Device for removing the starting end of a coil-wound textile yarn from the bore of a core on which the coil is wound
US3608843A (en) * 1968-06-25 1971-09-28 Schweiter Ag Maschf Method and apparatus for the pneumatic removal of the foot winding or lap from cops
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
JPS5038597Y1 (enrdf_load_html_response) * 1974-09-04 1975-11-07
US4103836A (en) * 1975-06-25 1978-08-01 W. Schlafhorst & Co. Undoing or removing the thread ends of textile bobbins
US4036444A (en) * 1975-07-03 1977-07-19 Maschinenfabrik Schweiter Ag Apparatus for pneumatically separating a foot lap from a spinning cop
JPS5230834U (enrdf_load_html_response) * 1975-08-20 1977-03-04
US4660780A (en) * 1984-04-05 1987-04-28 Murata Kikai Kabushiki Kaisha Yarn end finding device

Also Published As

Publication number Publication date
CH435068A (de) 1967-04-30
GB1141333A (en) 1969-01-29
DE1560567A1 (de) 1970-10-01
BE681601A (enrdf_load_html_response) 1966-10-31

Similar Documents

Publication Publication Date Title
US2481031A (en) Winding method and apparatus
US4108388A (en) Method for catching, severing and rethreading a thread and an apparatus for implementing the method
US3355118A (en) Device for removing a foot bunch of yarn from a cop
US3283489A (en) Device and method for producing a yarn package
US4063696A (en) Slotted take-up package tube for open-end spinning machines
US5115629A (en) Method and apparatus for preparing yarn ends to be spliced
US4662574A (en) Thread reserve forming device
US3059866A (en) Method and means for readying spinning cops
US3251560A (en) Winding machine
US3136494A (en) Method and means for preparing spinning cops for rewinding
US2373513A (en) Tension and bloom control device
US3814347A (en) Starting device for yarn carrier
JPH026035Y2 (enrdf_load_html_response)
US3031149A (en) Method and means for readying a yarn coil to be unwound
US4953799A (en) Cutting apparatus for severing trailing yarns on spinning bobbins
US2614771A (en) Bobbin with strand end attaching means
US2870971A (en) Winding machine and method of doffing and thread-in
US3165275A (en) Coil winding machine with yarn severing device
US3373948A (en) Method and device for pneumatically removing the tip or foot bunch from supply coils
US3043529A (en) Apparatus for preparing coils of yarn for further fabrication
US4058264A (en) Yarn wound package provided with a transfer tail wind and method for forming the transfer tail wind
US4094134A (en) Thread end cutting apparatus in spinning machine
CZ133893A3 (en) Device for removing supporting turns, especially reserve turns and/or ends of fibers within the region of a cop bobbin foot
US3523651A (en) Apparatus for catching an end of a feed yarn in a pirn winder and the like
US3377031A (en) Device for pulling the leading end of yarn from a textile coil