US3194001A - Textile yarn severing devices - Google Patents

Textile yarn severing devices Download PDF

Info

Publication number
US3194001A
US3194001A US320965A US32096563A US3194001A US 3194001 A US3194001 A US 3194001A US 320965 A US320965 A US 320965A US 32096563 A US32096563 A US 32096563A US 3194001 A US3194001 A US 3194001A
Authority
US
United States
Prior art keywords
thread
spring
convolutions
coil spring
tension
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
US320965A
Other languages
English (en)
Inventor
Forward Philip
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.)
Ernest Scragg and Sons Ltd
Original Assignee
Ernest Scragg and Sons Ltd
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 Ernest Scragg and Sons Ltd filed Critical Ernest Scragg and Sons Ltd
Application granted granted Critical
Publication of US3194001A publication Critical patent/US3194001A/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
    • 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
    • B65H54/026—Doubling winders, i.e. for winding two or more parallel yarns on a bobbin, e.g. in preparation for twisting or weaving
    • 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
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/71—Arrangements for severing filamentary materials
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/393—Web restrainer

Definitions

  • said actuating means may include a thread-engaging member which is held against a bias by thread tension and which moves under the bias upon loss of thread tension.
  • the actuating means may include an electrical thread failure detector.
  • the invention also provides, in a textile machine in which two or more threads are treated simultaneously, thread severing means operative to sever one thread or some threads upon breakage of another comprising a pivotally mounted arm adapted to be retained in a first position by engaging both or all threads and biassed to move to a second position when one thread breaks, and, in moving to said second position, to release catch means normally holding apart the turns of a close-coiled spring between which turns the threads can run, whereby the other thread or threads are severed.
  • the invention provides thread severing means comprising an electrical thread detector which upon breakage of a thread causes a solenoid to be energized to release a normally extended close-coiled spring between the turns of which the threads run, whereby the other thread or threads are severed.
  • FIGURE 1 is a perspective view of the severing means in a first position prior to actuation
  • FIGURE 2 is a similar view of the means in a second actuated position
  • FIGURE 3 is an elevation of a thread breakage detector.
  • the severing means comprises a close-coiled spring 11, which is shown extended in FIGURE 1 and closed in FIGURE 2.
  • the spring 11 is fixed at one end on a block 12, adapted to be mounted in a textile machine, and at the other end on a slider 13, which is movable along $194M) l Patented July 13,1965
  • the slider 13 is connected to the block 12 by catch means consisting of a link 15 pivotedon the block 12 and a link 16 pivoted to the link 15 and to the slider 13.
  • the spring 11 is held extended as shown in FIGURE 1 by the linkage being held in a position close to its dead centre position by a projection 15a on the link 15 abutting the end of a screw 17 fixed in the block 12. Pressure on the link 15 in an anti-clockwise sense takes the linkage through its dead centre position and releases the spring 11.
  • the pressure referred to is applied to the link 15 by rod 18 which slides in a groove 19 in the block 12 and has a ramp 18a for a purpose hereinafter described, and an abutment 18b which engages the link 15.
  • the rod 18 is moved in the direction of the arrow by an arm 21 (FIG- URE 3) pivoted at 22 in a textile machine, falling from its full-line position to its dashed-line position, the arm 21 acting ona pin 23 on the rod 13 to move the rod from its full-line to its dashed-line position.
  • the arm 21 carries a yoke 24, each arm 24a, 24b of which engages a thread 25a, 25b to maintain the arm 21 in its full-line position, the yoke 24 being pivoted so that if either thread breaks, the yoke 24 turns on the arm 21 and is released from the other thread permitting the arm to.
  • a disc indicator 26 is carried by the arm 21 so that an operator can detect thread breakage from a distance.
  • Thread guides 27 guide the threads 25a, 25b to run normally clear of the turns of the spring 11.
  • Pivoted on the block 12 is an arm 28 which rests on the rod 18 and which is lifted by engagement with the ramp 18a on movement of the rod 18, thereby lifting the yarns 25a, 25b (if still present) to run each between an adjacent pair of turns of the spring 11. This action occurs just tracts a piece of ferromagnetic material whereby to move the rod 13.
  • Thread severing apparatus comprising, in combination, a coil spring which in its unstressed state has convolutions 'which press against each other; releasable stretching means operatively connected to said coil spring for stretching the latter into a tensioned condition where the convolutions of said spring are spaced from each other and for releasably holding said coil spring in said stretched condition, the said releasable stretching means when released freeing said coil spring to contract due to its inherent resiliency to its unstressed state; means for detecting a drop in the tension of a thread and for automatically releasing said stretching means whereby said coil spring will contract to its condition where its con- 7 volutions press against each other; and thread guide means positioning the thread at least when a drop in tension thereof is detected between a pair of convolutions of the spring so that when the latter said pair of convolutions thereof will snap against and grip the thread to sever the same.
  • Thread severing apparatus comprising, in combina tion, a coil spring having in its unstressed state convolutions which press against each other; toggle linkage means operatively connected to said coil spring for stretching the latter to a condition where its convolutions are spaced from each other when said toggle linkage means is in an operating position slightly beyondadeadcenter ,position thereof; means responding automatically to a drop in the tension ofa'thread for engaging said toggle linkage means and displacing the latter from said operative position back/through said dead-center position thereof to release said coil springrwhichedue to vits inherent resiliency immediately contracts to its unstressed 7 state; and thread guide means guiding the thread at least when the drop in tension thereof is detected between a pair of thelconvolutions of the spring so that when the thread tension drops said pair of spring convolutions will snap against the thread to grip and sever the latter;
  • Thread severing apparatus comprising, incombina tion, a coilspring which in its unstressedvstate has con '15' means. operatively connected to said coil spring for stretching the latter to a condition where said convoluvolutions which press against each other; toggle linkage tionsthereof are spaced from each other'andfor maintirrns; detecting means for detecting a drop in the tension of a thread, said detecting means being operatively connectedto said release member for automatically shifting the latter in said groove of'said block when the thread tension dropsthrough a distance sufficient-to displace said one lever byengagement with said projection'throughan anglei displacing'the toggle levers back'through their dead-center position whereupon said spring contracts to "*1 its "unstressed state while drawing said slide member towardfsaid block; and guide means guiding the thread between a pair ofconvolutions ofthe spring at least when 7 said detectingmeans detects a dropgin said tension so thread to grip and sever the, latter.
  • thrcadigu ide means'normally guid- 4 j ing a-thread when the latter is :undertensiodalorigzi path a adjacent but clear of said spring;-and an arm extending beneath the thread and automatically raised by said release means, when the thread tension drops, toan, elevathat 'said pair ofsaid convolutionswillsnap against the J5;-'Apparatus as recitedin claim 4 and wherein said thread guideimeans includes guide members which guide the. thread along a path clear of thecoil spring, and an arm pivotally connected to said block and j-having a normalrest position freeingthe thread for movement clear of said spring, said release member having a ramp which, upon movement of said projection toward said one lever,
  • Thread severing apparatus comprising, in combination, a coil spring having convolutions which in an uristressed state of said coil spring press againsteach other;
  • said .block being formed with a guide grooveliextending' transversely of said rod; a slidemember formed with a bore throughwhich said rod extends and fixed to anend of said spring distant 'from said guide block,- said slide ot threads are guided bysaid guide meansclear of said spring when said threads are under normal tension, said arm when swung by.
  • said ramp displacing said pair of ,threads into spaceslbetweenconvolutions of said spring 'to be gripped and severed'thereby
  • said detecting means including a lever normally having a substantially upright position, means pivotally supporting said' lever for free turning movement, a yoke pivotally carried by an upper portion of said lever and engaging said threads to hold said lever in; said substantially upright position, whereppon'when either of said threads undergoesa drop in tensiori said ,yoke will turn to release said lever which automatically falls, said'release member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US320965A 1962-11-01 1963-11-01 Textile yarn severing devices Expired - Lifetime US3194001A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4132062 1962-11-01

Publications (1)

Publication Number Publication Date
US3194001A true US3194001A (en) 1965-07-13

Family

ID=10419143

Family Applications (1)

Application Number Title Priority Date Filing Date
US320965A Expired - Lifetime US3194001A (en) 1962-11-01 1963-11-01 Textile yarn severing devices

Country Status (4)

Country Link
US (1) US3194001A (de)
CH (1) CH411643A (de)
DE (1) DE1283133B (de)
ES (1) ES293097A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306508A (en) * 1965-06-28 1967-02-28 Associated Ideas Inc Cutting mechanism
US4027121A (en) * 1975-10-10 1977-05-31 Cutler-Hammer, Inc. Yarn trapper for yarn detector switch
US20100257449A1 (en) * 2009-04-07 2010-10-07 Clearslide, Inc. Mixed content type presentation system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481982A (en) * 1921-04-21 1924-01-29 Eclipse Textile Devices Inc Automatic electromagnet rover stop or breaker for spinning machines
US1554491A (en) * 1925-02-12 1925-09-22 Bottomley William Trap device for use in machines or frames employed in the preparation or treatment of yarn or thread
US2886941A (en) * 1957-06-11 1959-05-19 Jr Agnew H Bahnson Combined roving break-back and feed mechanism for textile processing machines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936511A (en) * 1954-08-06 1960-05-17 William Hollins & Company Ltd Yarn clearing apparatus
BE565234A (de) * 1957-03-01
DE1098866B (de) * 1957-05-02 1961-02-02 Franz Mueller Maschinenfabrik Spulmaschine
FR1267655A (fr) * 1959-11-07 1961-07-21 Mueller Franz Maschf Casse-fil à compensation pour bobinoirs à fils croisés ou analogues
FR1301682A (fr) * 1961-09-22 1962-08-17 Philips Nv Mécanisme sectionneur pour appareils destinés au nettoyage des fils textiles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481982A (en) * 1921-04-21 1924-01-29 Eclipse Textile Devices Inc Automatic electromagnet rover stop or breaker for spinning machines
US1554491A (en) * 1925-02-12 1925-09-22 Bottomley William Trap device for use in machines or frames employed in the preparation or treatment of yarn or thread
US2886941A (en) * 1957-06-11 1959-05-19 Jr Agnew H Bahnson Combined roving break-back and feed mechanism for textile processing machines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306508A (en) * 1965-06-28 1967-02-28 Associated Ideas Inc Cutting mechanism
US4027121A (en) * 1975-10-10 1977-05-31 Cutler-Hammer, Inc. Yarn trapper for yarn detector switch
US20100257449A1 (en) * 2009-04-07 2010-10-07 Clearslide, Inc. Mixed content type presentation system
US9311618B2 (en) * 2009-04-07 2016-04-12 Clearslide, Inc. Mixed content type presentation system

Also Published As

Publication number Publication date
ES293097A1 (es) 1964-03-16
CH411643A (de) 1966-04-15
DE1283133B (de) 1968-11-14

Similar Documents

Publication Publication Date Title
US3854356A (en) Thread cutting and clamping means
GB1071508A (en) Improvements in severing devices for the threads on double chain stitch sewing machines
US3194001A (en) Textile yarn severing devices
US3055251A (en) Spring tensioned cutting wire device
US2446647A (en) Apparatus for detecting imperfections in filamentary materials
US2137613A (en) Device for cleaning strand material
GB897563A (en) Thread cutting mechanisms for sewing machines
ES359254A1 (es) Un dispositivo de control de la tession de un hilo.
GB2030603A (en) Threaddelivery device for textile machines
US2640662A (en) Thread tensioning device
US2590398A (en) Thread feeding device for thread testing machines
US3650128A (en) Stop motion control device for knitting machines
US3154992A (en) Pivoted cutter for running yarn line
US2924931A (en) Thread feeding stop device for yarn-forming machine
US2786257A (en) Tape-applying device
US1940498A (en) Braider carrier
US2776805A (en) Regulator release means
US3076251A (en) Yarn inspection apparatus
US3209559A (en) Equipment for circular knitting machines
US1791289A (en) Stop motion
US2211332A (en) Leader bar for threading roller machines with strip material
GB1028541A (en) Gauging arrangement for monitoring ribbon thread thickness
US2423630A (en) Yarn-tension or take-up device, primarily for knitting machines
US2831390A (en) Multiple strand carrier for braiding machines
US2134018A (en) Detector for stop motion mechanism in winding machines