US3155331A - Yarn winding machine with yarn severing and tension sensing means - Google Patents

Yarn winding machine with yarn severing and tension sensing means Download PDF

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Publication number
US3155331A
US3155331A US24385462A US3155331A US 3155331 A US3155331 A US 3155331A US 24385462 A US24385462 A US 24385462A US 3155331 A US3155331 A US 3155331A
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United States
Prior art keywords
yarn
strand
severing
guard
pin
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Expired - Lifetime
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English (en)
Inventor
Thomas E Pitts
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.)
Leesona Corp
Original Assignee
Leesona Corp
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Filing date
Publication date
Priority to BE640465D priority Critical patent/BE640465A/xx
Application filed by Leesona Corp filed Critical Leesona Corp
Priority to US24385462 priority patent/US3155331A/en
Priority to CH1472963A priority patent/CH418194A/de
Priority to GB4884363A priority patent/GB1072860A/en
Application granted granted Critical
Publication of US3155331A publication Critical patent/US3155331A/en
Assigned to JOHN BROWN INDUSTRIES LTD., A CORP. OF DE. reassignment JOHN BROWN INDUSTRIES LTD., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LEESONA CORPORATION; 333 STRAWBERRY FIELD RD., WARWICK, RI. A CORP. OF MA.
Assigned to LEESONA CORPORATION reassignment LEESONA CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE 3-31-81 STATE OF DELAWARE Assignors: JOHN BROWN INDUSTRIES LTD.
Anticipated expiration legal-status Critical
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
    • 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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/04—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to excessive tension or irregular operation of apparatus
    • 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
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/872—With guard means

Definitions

  • the present invention relates to winding machines, and relates, more particularly, to a yarn sensing and severing device which is operative to detect and sever a strand of yarn running from a supply bobbin to a take-up unit of a winding machine when the yarn on said bobbin has become snagged, snarled or otherwise impeded from free unwinding.
  • yarn is employed in a general sense to apply to all kinds of strand material, either textile or otherwise and the designation package is intended to mean the product of a winding or twisting machine hatever its form.
  • At least two circumferentially spaced packages of yarn are mounted at the supply end of the winding machine upon a carrier arranged for rotation about a vertical axis, the carrier being automatically rotated to remove one supply package from an active unwinding position and bring another package thereto in the event the yarn on the first package runs out, or breaks in the vicinity of the package while yarn is being supplied to the take-up unit of the winding machine.
  • a fresh reserve package is shifted from its reserve position to the active unwinding position a lead end of said fresh reserve yarn supply package is moved automatically from an inactive position into an active unwinding yarn path.
  • said lead yarn end is caused to pass beneath and engage with a shoulder of an axially movable sensing pin having a body portion projecting above the top panel'of' a yarn servicing housing of the Winding machine.
  • the lower end of the axially movable pin projects downwardly into the yarn servicing section housing and is aligned therein with a rotatable cam.
  • the sensing pin is restrained from engagement with said cam by virtue of the yarn strand engaging with a shoulder of the pin.
  • an object of the present invention is to provide an automatic means for sensing snaris, snags or other obstructions which prevent the free unwinding of yarn from an active yarn supply package.
  • Another object of the present invention is to provide means for automatically severing a yarn strand running from a supply package when the strand has become obstructed from free unwinding off the package.
  • Still another object of the present invention is to provide a means for automatically clamping the yarn in position while sensing and severing is taking place.
  • Yet a' further object of the present invention is to provide a means operative automatically after the presentation of each free yarn supply package whereby the sensing and, if necessary, severing will take place.
  • Anadditional object of the presentinvention is to provide a means for automatically monitoring the tension condition of the yarn in its initial withdrawal from the active supply package which is simple in construction and durable and reliable in use.
  • the invention accordingly comprises the apparatus possessing the construction, combination of elements and arrangement of parts which are exemplified in the following detailed disclosure and the scope of the application which .will be indicated in the claims.
  • FIG. 1 is a front elevational view of a portion of a winding machine incorporating the present invention
  • FIG. 2 is an exploded view showing the details of the present invention. i
  • FIG. 3 is an enlarged front elevational view of a portion of a winding machine illustrating the position of various elements of the present invention when sensing a strand of yarn which is in free condition for-Withdrawal from the active supply package;
  • FIG. 4 is a view similar to FIG. 3 but showing the position of the elements in connection with a strand of yarn which is impeded from free withdrawal from the yarn supply package;
  • FIG. 5 is a rear elevational view of clamping and guard elements of the invention showing the operative connection therebetween.
  • the present invention comprises a cutting member mounting a blade, a guard for enclosing the cutting Patented Nov. 3, 1964 member, a clamp for holding the yarn in position while the sensing and severing operations are performed, and means for operating the components.
  • the cutting unit and guard normally lay in a rest or inoperative position at one side of the path of a strand of yarn extending from a supply bobbin to its take-up unit.
  • the strand of yarn is secured along its run prior to operation of the take-up unit by the clamp whereupon the strand is engaged by the guard and cutting member.
  • the yarn is not free to unwind off the supply package it will, when clamped, resist the movement of the guard and cutting member.
  • the cutting member which is positively actuated, will advance beyond the guard while the guard is restrained by the yarn strand. Such advancement of the cutting member exposes its cutting blade to the yarn whereupon the yarn is severed. In the event the yarn strand is free on the supplypackage so that it may be unwound therefrom it will yield from its normal path when contacted by the cutting member and guard. The blade is thus retained under the guard and the yarn is not severed but, rather, is eventually released from the clamp, cutting member and guard for advancement to the takeup unit.
  • the Winding machine is provided with a forwardly extending yarn servicing section which includes a top panel 12 and a front wall 14.
  • the yarn servicing section 10 provides a housing for enclosing certain of the operating parts of the winding machine and, additionally, provides a mounting upon which further operating components of the winding machine are situated.
  • the top panel 12 supports a yarn tension unit 16, the upper portion of which is formed as a tubular cap 13 through which is axially pierced a yarn sensing pin 20.
  • the yarn sensing pin 24 is provided with a shoulder (not herein illustrated) beneath which the running strand of yarn from supply I package S is passed.
  • a shoulder not herein illustrated
  • the pin is released to fall downwardly and engage with a rotatable cam of the general type illustratted fragmentarily at 22 and supported on shaft 24.
  • Rotation of cam 22 thereupon initiates the introduction of a reserve yarn package, shown at S, to the active unwinding position shown as being occupied by supply package S (FIG. 1).
  • the pin will be prevented from descending into engagement with cam 22 and package S will not be moved to the active unwinding position.
  • One side of the opening is provided with a surface of constant radius as at 60, said surface 60 extending downwardly from a notch at 62 in the upper region of said opening.
  • the uppermost end of plate 58 is folded at a right angle to the main body of said member to provide a tab 64.
  • Tab 64 supports a U-shaped clamp 66 thereon in a position overlaying the forward end of top panel 12.
  • a mating anvil 68 is fixed at the forward end of top panel 12 in position to have the clamp 66 abut thereagainst.
  • a metal shield or guard 70 constructed of a pair of spaced parallel sides 72 and 74 joined together along one of their edges by a web 76, is supported rather loosely on shaft 50 outwardly from and in juxtaposed relation with plate 58.
  • the sides 72 and 74 of guard 70 are provided with aligned V-shaped notches 78 in their margins thereof remote from web 76.
  • side 74 has an ear 80 folded inwardly therefrom, said ear terminating approximately midway between the two sides 72 and 74.
  • the spaced sides 72 and 74 of guard 70 serve to enclose a member 86 therebetween.
  • Member 86 conforms in shape generally to the marginal boundries of sides 72 and 74.
  • said member is provided with a slot 88 in alignment with the previously related V-shaped notches 78 in sides 72 and 74.
  • slot 88 is somewhat deeper than the V-shaped notches 78, the rear or bottom of the slot terminating at a recess 90 midway across the member.
  • a blade 92 is seated in recess 90, being held in position by a screw 94. It will be observed in FIG. 2 that blade 92 spans the slot 88 at the rear portion thereof. Further, to facilitate the cutting action of blade 92 it is disposed with its cutting surface on an incline. Thus, a strand of yarn coming in contact with the blade will tend to slide longitudinally along the cutting surface thereof.
  • a further recess or cavity 96 is provided in the lower section of member 86, the outer edges of this cavity presenting a pair of opposite walls 97 and 98.
  • cavity as has a D-shaped bore 100 through the lower section. for receiving. shaft, 50. therein, the flat 102, of the bore being arranged to mate firmlywiththe ,flattedport on 52 of shaft 50.
  • Thishub providesthemounting means for a scissors spring 1.06, said. spring being coiled loosely. around the. hublllA and extendingupwardly therefrom in. a...pair offspaced-apartlegs 107. and 108, one of the legs,10.7. bearing. against the interimv of wall 97 and the. oppositeleg 1 0,8 similarly pressingagainst the wall 98.
  • tab 80 An understanding of the purpose of tab 80, previously described, is best obtained with reference to FIG. 2.
  • tab 80 With. member 86 situated between,walls.72. and. 74 of guard 70 tab 80 is engaged with, leg 10.8 of spring 106 between. said leg and. wall. 98..
  • BIG. 3. counterclockwi thrust
  • member 86 Projecting from. the rearward side of member 86 is a short.stud.109., Normally stud, 109. is positionedin notch 62. to, in effect, fasten member 86 and. plate 58 together for. cooperative movement.
  • shaft 50 has a flange 110 at its rearmost end.
  • a rearwardly projecting pin 112. has one. of its ends embedded in, fiange 110, the opposite. end. ofsaid pin. terminating in, the course of a generally vertical-path 1141' of cam, 22
  • Cam, path. 114 is provided at its lowermost end with a radiallip or platform. 11 5.
  • Said. platform 116 does. notspan the entire transverse dimension of cam path. 114. but, rather, extends, from a. sheer. wall. 118 of the path to a point generally midway across the path.
  • a slot 120 is, constituted at theinterior end of the platform 116 between said platform. and, an. upright wall 122 of path 114.
  • rib. 12.4 The forward end. of rib. 12 4, i.e., the end nearest to platform 11G, is tapered. or beveled as at 126 toprovide a guide track for camming pin 112 into path 114.
  • shaft 50 is surrounded by a torsion. spring, 1128.. One end. of this. spring. is secured in one side of flange. 110 and the opposing spring end is connected into wall 14.
  • Spring 128 thereby pro.- vides a counterclockwise biasing force to shaft 50.- and the components supported thereon.
  • stop pin 130 is affixed. in the. outside face of wall 14 and extends out wardly into the. path of guard 70.
  • contact of guard 7.0 with pin 13.0 will restrain the guard and its companion member 86 from. further counterclockwise rotationr
  • rotation of said shaft will also. be restrained by the stop pin,
  • a strand of yarn Y is withdrawn from active unwinding supply package S and threaded through yarn guide 38, passed through loop 36' of bail 3'4 and, subsequently, is engaged in yarn tension unit 16 after which the yarn strand Y is carried to a suitable yarn take-up unit not herein illustrated.
  • a further reserve yarn strand Y is withdrawn from reserve supply package S, the reserve yarn strand being threaded over bail 34 with its terminal end being suitablysecured by means not herein illustrated but which means may be a suitable suction p e in the p pan l 12 o yarn erv cing ction :0-
  • means may be a suitable suction p e in the p pan l 12 o yarn erv cing ction :0-
  • guard70 connected, to member 86 through spring 106, and plate 58 which is movable cooperatively withmember 86by means of stud 109, areboth urged in the same clockwise direction as the member.
  • this movement of guard '70 and plate 58 along with member 86 vent y en a yarn.
  • Said surface 60 having a surface of constant radius generated relative to the axis of shaft 50, receives stud 109 under the continued biasing force of member 86 which continues to move clockwise. From this point on stud 109 will slide down surface 60 to maintain its clamping force on yarn strand Y as member 86 advances clockwise. The yarn strand Y, now slides to the bottom of notches 78 of guard 70 whereby the yarn is deflected out of its normal straight-line path as shown in FIG. 1 to the. position of FIG. 3. In the course of suchdeflection if the 'yarn strand is free to unwind from reserve supply package S the yarn will simply move away from its path, some small portion of yarn being unwound off the package S to compensate for the deflection.
  • the yarn will be protected from severance by blade $2 due to the fact that notches 78 of guard 76 hold it away from contact with said blade which is seated beyond the depth of the notches.
  • the yarn is impeded from unwinding from reserve supply package S when member 86 and guard 70 are swung so as to engage the yarn in the respective slot 88 and notches 73 the strand Y will resist the clockwise movement of guard 70. Notwithstanding this, member 86 will continue to swing clockwise due to its positive engagement with shaft 50. In consequence thereof the yarn will actually hold the guard 70 back from further swinging movement as shown in FIG. 4.
  • member 89 will, in effect, separate from the guard, the resistance or tension of the entangled strand between clamp 66 and supply package S being adequate to overcome the biasing effect of spring 106.
  • member 86 swinging through a greater clockwise path than guard 76.
  • blade 92 is carried forwardly to an exposed position (FIG. 4), the yarn thereupon riding onto said blade 92 and being severed.
  • the driving pin 112 will slide through slot 120.
  • Guard 70, plate 58 and member 86 will be swung abruptly rearwardly to their rest positions as shown in FIG. 1 under the influence of spring 128, guard 70 coming to rest against stop pin 13!
  • pin 112 passes through slot 120 it is, of course, released from the control of cam 22.
  • the pin In order that the system may be recocked for a subsequent sensing operation the pin must be re-engaged with the cam, This is accomplished inthe following manner.
  • cam 22 serves to position pin 112 and platform 1.16 in alignment with and in close proximity to each other for a further sensing movement in a like cycle to that just described.
  • a winding machine adapted to advance a strand of yarn from a supply source to a take-up unit, said machine including sensing means for detecting an interruption in said advancing strand of yarn, and actuating means operable cooperatively with said sensing means to present a fresh strand of yarn for winding upon interruption of said advancing strand
  • the improvement therein comprising, a clamping member arranged to grip said strand between said supply source and said take-up unit, severing means movable from a first position spaced from said yarn strand to a second position interposed in the path of the strand between said supply source and said clamping member, means connnected with and operable by said actuating means for moving said severing means from said first position to said second position, a guard member normally enclosing said severing means and movable cooperatively therewith, said guard member being arranged to contact said strand of yarn, and resilient means yieldably connecting said severing means and said guard member, said resilient means being yieldable
  • said severing means includes a blade, said severing means having a guide slot therein for directing said strand to said blade.
  • said guard includes a yarn-receiving passage therein in alignment with said guide slot, said passage being shallower in depth than said guide slot.
  • a winding machine adapted to advance a strand of yarn from a supply thereof onto a winding package, said machine including sensing means for detecting an interruption in said advancing strand of yarn, and actuating means operable cooperatively with said sensing means to present a fresh strand of yarn for winding upon interruption of said advancing strand, the improvement therein comprising, yarn severing means, a member for mounting said severing means, connecting means for engaging said member with said actuating means, said connecting means being operable cooperatively with said actuating means to operate said severing means and sever said fresh strand of yarn when the tension therein exceeds a predetermined value.
  • a winding machine adapted to advance a strand of yarn from a supply thereof onto a winding package, said winding machine including sensing means for detecting an interruption in said advancing strand of yarn, and actuating means operable cooperatively with said sensing means to present a fresh strand of yarn for winding upon interruption of said advancing strand, the
  • tension measuring means for measuring the tension in said fresh strand of yarn
  • yarn severing means operably connected with said last mentioned means, a member for mounting said tension measuring means and said severing means thereon
  • connecting means for engaging said member with said actuating means
  • said connecting means being opsaid winding machine including sensing means for detecting an interruption in said advancing strand of yarn, and actuting means operable cooperatively with said sensing means to present a fresh strand of yarn for Winding upon interruption of said advancing strand
  • the improvement therein comprising, detecting means for detecting an impediment, preventing the substantially free feeding of yarn from said supply to said winding package, yarn severing means operably connected with said last mentioned means, a member for mounting said detecting means and said severing means thereon, connecting means for engaging said member with said actuating means, said connecting means being operable cooperatively with said actuating means to operate said detecting means as said fresh strand of yarn is presented for Winding, said severing means being oper

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
US24385462 1962-12-11 1962-12-11 Yarn winding machine with yarn severing and tension sensing means Expired - Lifetime US3155331A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE640465D BE640465A (ja) 1962-12-11
US24385462 US3155331A (en) 1962-12-11 1962-12-11 Yarn winding machine with yarn severing and tension sensing means
CH1472963A CH418194A (de) 1962-12-11 1963-12-02 Wickelmaschine
GB4884363A GB1072860A (en) 1962-12-11 1963-12-11 Yarn severing device for use in a winding machine

Applications Claiming Priority (1)

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US24385462 US3155331A (en) 1962-12-11 1962-12-11 Yarn winding machine with yarn severing and tension sensing means

Publications (1)

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US3155331A true US3155331A (en) 1964-11-03

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US24385462 Expired - Lifetime US3155331A (en) 1962-12-11 1962-12-11 Yarn winding machine with yarn severing and tension sensing means

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US (1) US3155331A (ja)
BE (1) BE640465A (ja)
CH (1) CH418194A (ja)
GB (1) GB1072860A (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511448A (en) * 1968-03-13 1970-05-12 Leesona Corp Yarn inspection apparatus
FR2369365A1 (fr) * 1976-10-30 1978-05-26 Bayer Ag Procede et appareil pour couper des cables de fibres
US5158241A (en) * 1989-06-19 1992-10-27 Barmag Ag Apparatus for cutting an advancing yarn
EP0995711A2 (de) * 1998-10-23 2000-04-26 W. SCHLAFHORST AG & CO. Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine
EP2620533A3 (en) * 2012-01-30 2014-04-02 Murata Machinery, Ltd. Winding device
US20150053808A1 (en) * 2013-08-22 2015-02-26 Murata Machinery, Ltd. Filament Winding Apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4016964A1 (de) * 1990-05-25 1991-11-28 Anastasios Anastasiadis Verfahren und vorrichtung zum fuehren eines fadens von einem fadenspeicher zu einer strick- oder wirkstelle einer strick- oder wirkmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US592440A (en) * 1897-10-26 Haoulduperrouzel
US1096890A (en) * 1913-05-10 1914-05-19 James E Burke Stop-motion for knitting-machines.
US2263466A (en) * 1938-05-31 1941-11-18 Charles M Mccarthy Rope cutting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US592440A (en) * 1897-10-26 Haoulduperrouzel
US1096890A (en) * 1913-05-10 1914-05-19 James E Burke Stop-motion for knitting-machines.
US2263466A (en) * 1938-05-31 1941-11-18 Charles M Mccarthy Rope cutting device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3511448A (en) * 1968-03-13 1970-05-12 Leesona Corp Yarn inspection apparatus
FR2369365A1 (fr) * 1976-10-30 1978-05-26 Bayer Ag Procede et appareil pour couper des cables de fibres
US5158241A (en) * 1989-06-19 1992-10-27 Barmag Ag Apparatus for cutting an advancing yarn
EP0995711A2 (de) * 1998-10-23 2000-04-26 W. SCHLAFHORST AG & CO. Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine
EP0995711A3 (de) * 1998-10-23 2000-11-15 W. SCHLAFHORST AG & CO. Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine
EP2620533A3 (en) * 2012-01-30 2014-04-02 Murata Machinery, Ltd. Winding device
US20150053808A1 (en) * 2013-08-22 2015-02-26 Murata Machinery, Ltd. Filament Winding Apparatus

Also Published As

Publication number Publication date
GB1072860A (en) 1967-06-21
CH418194A (de) 1966-07-31
BE640465A (ja) 1900-01-01

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AS Assignment

Owner name: JOHN BROWN INDUSTRIES LTD.; 100 WEST TENTH ST., WI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LEESONA CORPORATION; 333 STRAWBERRY FIELD RD., WARWICK, RI. A CORP. OF MA.;REEL/FRAME:003936/0206

Effective date: 19810501

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Owner name: LEESONA CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:JOHN BROWN INDUSTRIES LTD.;REEL/FRAME:003936/0238

Effective date: 19810331