US3661334A - Device for reducing contact pressure of a bobbin contacting a drive drum of a thread winding arrangement - Google Patents

Device for reducing contact pressure of a bobbin contacting a drive drum of a thread winding arrangement Download PDF

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Publication number
US3661334A
US3661334A US866346A US3661334DA US3661334A US 3661334 A US3661334 A US 3661334A US 866346 A US866346 A US 866346A US 3661334D A US3661334D A US 3661334DA US 3661334 A US3661334 A US 3661334A
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US
United States
Prior art keywords
bobbin
support arm
bobbin support
lever
drive drum
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
US866346A
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English (en)
Inventor
Felix Graf
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.)
Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
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Publication of US3661334A publication Critical patent/US3661334A/en
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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
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/40—Arrangements for rotating packages
    • B65H54/52—Drive contact pressure control, e.g. pressing arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
    • B65H2601/524—Vibration
    • 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 loading spring means is attached to the bob- [56] References cued bin support arm in the vicinity of the bobbin and is hinged to UNITED STATES PATENTS the machine frame via the aforesaid lever, so that the guide element of the bobbin support arm deflects this lever and the 2,753,125 7/1956 Wurmlt ..242/18 DD loading spring means over a certain distance while the bobbin 2,957,635 10/1960 Bisbe;
  • the present invention broadly deals with textile apparatus and, more specifically, relates to an improved device or apparatus for reducing the contact pressure of a bobbin contacting a drive drum of a thread winding arrangement such as used, for example, on take-up, draw-winding and spin-drawwinding machines.
  • bobbin support arms are known to the art in which helical springs are axially arranged on the bobbin pivoting shaft in order to generate the contact pressure
  • the influence of the springs is suppressed during such time as the bobbin is in its so-called idle position, (i.e., in the bobbin change or exchange position) by means of a ratchet device.
  • one end of the spring has been inserted into the support arm and the other end into the machine frame.
  • Another, more specific object of the present invention relates to the provision of an improved device of the aforementioned type which utilizes simple means and provides for a fast initial drop in the contact pressure and subsequently an almost constant contact pressure.
  • Still a further object of the present invention relates to an improved device for reducing the contact pressure of a bobbin contacting a drive drum of a winding arrangement for threads or the like, wherein such contacting pressure is adaptable to the requirements of the respective processing conditions by means of easily exchangeable elements.
  • a further, important object of the present invention re lates to the provision of an improved device for the reduction of the contact pressure of a bobbin contacting the drive drum of a thread winding arrangement possessing a design which is as compact as possible.
  • the invention contemplates the provision of an improved device for the reduction of the contact pressure of a bobbin contacting a drive drum of a winding arrangement for threads or the like, which is of the type incorporating a pivotable bobbin support arm and loading spring means providing the bobbin contact pressure.
  • a guide element for determining the position of a lever pivotably arranged on the machine frame.
  • the loading spring means is attached to the bobbin support arm in the vicinity of the bobbin and is hinged to the machine frame via the lever, so that the guide element of the bobbin support arm deflects such lever and the loaded spring means through a certain distance when the bobbin support arm is tilted.
  • FIG. 1 is a'schematic elevational view of a preferred embodiment of inventive winding arrangement at the beginning of the package build or formation;
  • FIG. 2 is a view similar to the winding arrangement of FIG. 1, but showing the arrangement of the components at the end of the winding operation;
  • FIG. 3 depicts the winding arrangement of FIG. I in a position wherein the bobbin support arm is completely tilted out into its bobbin change or exchange position;
  • FIG. 4 is a graph plotting bobbin contact pressure as a function of package diameter, such bobbin contact pressure being plotted along the ordinate and the package diameter along the abscissa of such graph.
  • a thread 1 consisting of one or more endless filaments, is transferred through the action of a traversing thread guide element 2 onto a bobbin 5, the traversing thread guide element 2 being guided by a grooved drum 4 supported in the machine frame 3.
  • Bobbin 5 is rotatably supported by a pivotably mounted bobbin support arm 6 and is frictionally driven through contacting a friction drive drum 7 arranged at the machine frame 3.
  • thread 1 or the like is wound-or taken-up in layers at a constant speed upon the bobbin 5.
  • the contact or contacting pressure of the bobbin 5 upon the drive drum 7, which is required for this purpose, is provided by means of a tension spring 8.
  • This tension spring 8 has its upper end hingedly or pivotably connected, at location A, to the bobbin support arm, and similarly its lower end is hingedly connected, at location B, to a lever 9.
  • This lever 9 is mounted at the machine frame 3 and pivots in a plane parallel to the plane of pivoting of the bobbin support arm 6.
  • the pivot axis C of the lever 9 is arranged at approximately the same height as the pivot axis or location D of the bobbin support arm 6, but is located somewhat farther to the inside, as shown.
  • a roll or roller member 10 which cooperates or works in concert with a guide curve or cam 11, also sometimes referred to as cam surface, provided at the lever 9.
  • the bobbin support arm 6 is provided with a projection or protruding arm portion 12 which is directed downwards, and the end of which rests against a suitable stop member 13 provided at the machine frame 3 when the bobbin support arm 6 is tilted out fully into its bobbin change position.
  • a damping device 14 is hinged to the projecting arm portion or projection 12 for the purpose of damping vibrations caused by out-of-round bobbins or tubes. This device also serves to protect the bobbin support bearings, as otherwise the still empty bobbin would .contact the drive drum 7 with a hard impact when the bobbin support arm is tilted back.
  • the hinge or pivot points A and B of spring member 8 and the hinge point C of the lever 9 are located on a straight line g when the empty bobbin 5 contacts the drive drum 7. Moreover, the distance of the guide curve or cam 11 of the lever 9 from the roll 10 arranged on the bobbin support arm 6 is chosen such that no deflection of the spring pivot points, out of this straight line, is efiected in this position. Now, as best observed by referring to FlG.
  • the distances between the guide roll 10 and the guide curve or cam 11 are chosen such that the action of the spring force increases as the bobbin support arm 6 swings through its vertical position, by virtue of which arrangement the component of the force tilting this bobbin support arm 6 counterclockwise and generated by the increasing package weight is over-compensated as tilting continues.
  • the guide curve or cam surface 11 it is possible, after the arm 6 has passed its vertical position, to achieve an initial pronounced or sharp drop in the contact pressure and, subsequently, an approximately constant contact pressure, as best evidenced by referring to the graph of F IG. 4.
  • the contact pressure present between the bobbin and drive drum must be relatively high at the initial stages of package build-up to counteract any possible danger of slippage of the empty bobbin on the drive drum. This danger is progressively reduced as the thread package builds-up at the bobbin so that when, for instance, the bobbin support arm has been pivoted into its vertical position, in other words has moved through a predetermined initial angle of tilt or pivotal movement between its starting position when the bobbin is empty and such vertical position, sufficient thread has now been wound onto the bobbin to ensure against slippage and thus, thereafter, the previously prevailing higher contact pressure may drop quite sharply. Thereafter, the contact pressure is maintained approximately constant at a reduced level throughout formation of the package, so that the undesirable lateral squeezing out of thread layers is suppressed.
  • the guide curve 11 arranged on the lever 9 extends upwardly, vertically at first (FIG. 1), and then follows a quadrant or quarter circle path 16.
  • the end point of the quadrant 16 is arranged approximately at right angles to its starting point.
  • the lever 9 is also provided with a projection means or guide curve zone 17 which, when the bobbin support arm 6 is tilted out fully, as shown, extends approximately parallel to this bobbin support ann 6 and permits tilting of such arm 6 over a neutral or dead-center position T.
  • the bobbin support arm 6 even if unloaded, that is, after doffing the full package, cannot tilt back by itselfany longer.
  • a device for reducing the contact pressure of a bobbin having a bobbin axis and which contacts a drive drum of a winding arrangement for threads or the like wound into a thread package on the bobbin comprising a pivotable bobbin support arm, means for mounting said bobbin support arm for pivotal movement from a starting position where the empty bobbin contacts the drive drum through a vertical position as the thread package progressively builds-up on the bobbin and into a fully tilted-out bobbin-change position where the bobbin is out of contact with the drive drum, loading spring means cooperating with said pivotable bobbin support arm for providing the bobbin contact pressure, a machine frame, a lever pivotably attached at said machine frame, said lever being provided with a cam surface, a guide element provided for said bobbin support arm engageable with said cam surface for determining the position of said lever, said spring means being attached at one end to said bobbin support arm at the vicinity of the bobbin axis and at its other end to said
  • cam surface is designed such that it deflects said lever and spring means when said bobbin support arm moves through said vertical position.
  • cam surface defines a quadrant of a circle which at its lower end is directed upwardly in the direction of said bobbin support arm and then at its upper end is directed laterally towards said bobbin support arm.
  • a device for reducing the contact pressure of abobbin having a bobbin axis and which contacts a drive drum of a winding arrangement for threads or the like wound into a thread package on the bobbin comprising a pivotable bobbin support arm, means for mounting said bobbin support arm for pivotal movement from a starting position where the empty bobbin contacts the drive drum through a vertical position as the thread package progressively builds-up on the bobbin and into a fully tilted-out bobbin-change position where the bob- 6 bin is out of contact with the drive drum, loading spring means cooperating with said pivotable bobbin support arm for providing the bobbin contact pressure, a machine frame, a lever pivotablylarranged at said machine frame, said lever being provided with a cam surface, a guide element carried by said bobbin support arm and engageable with said cam surface for determining the position of said lever, said spring means being attached at one end to said bobbin support arm at the vicinity of the bobbin axis and at its other end to

Landscapes

  • Winding Filamentary Materials (AREA)
  • Winding Of Webs (AREA)
US866346A 1968-10-21 1969-10-14 Device for reducing contact pressure of a bobbin contacting a drive drum of a thread winding arrangement Expired - Lifetime US3661334A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1574268A CH481827A (de) 1968-10-21 1968-10-21 Vorrichtung zum Vermindern des Anpressdruckes einer auf einer Treibwalze aufliegenden Spule einer Aufwindvorrichtung von Fäden

Publications (1)

Publication Number Publication Date
US3661334A true US3661334A (en) 1972-05-09

Family

ID=4411570

Family Applications (1)

Application Number Title Priority Date Filing Date
US866346A Expired - Lifetime US3661334A (en) 1968-10-21 1969-10-14 Device for reducing contact pressure of a bobbin contacting a drive drum of a thread winding arrangement

Country Status (5)

Country Link
US (1) US3661334A (de)
CH (1) CH481827A (de)
DE (1) DE1952726C3 (de)
FR (1) FR2021132A1 (de)
GB (1) GB1271828A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841574A (en) * 1970-09-01 1974-10-15 Barmag Barmer Maschf Winding device for synthetic threads
US3991950A (en) * 1973-02-09 1976-11-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for making yarn packages of cheese form by a textile machine
US4022390A (en) * 1974-09-16 1977-05-10 Ateliers De Constructions Bourgeas-Fourgeirol Device for yarn spooling
US5054706A (en) * 1987-10-02 1991-10-08 Granger Maurice Device to adjust and dispense webs of rolled up material
US6572050B1 (en) * 1999-04-14 2003-06-03 Dupont-Toray Co. Ltd. Process for winding elastomeric fiber package

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3718391A1 (de) * 1986-06-06 1987-12-23 Barmag Barmer Maschf Kreuzspulmaschine
DE19534333B4 (de) * 1995-09-15 2009-02-19 Oerlikon Textile Gmbh & Co. Kg Spulenrahmen-Entlastungsvorrichtung für die Spuleinrichtung einer Kreuzspulen herstellenden Textilmaschine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR770474A (fr) * 1934-03-21 1934-09-14 Perfectionnements au bobinage des fils
GB530856A (en) * 1939-06-26 1940-12-23 William Gibson Improvements in or relating to roll winding machines
US2753125A (en) * 1953-08-10 1956-07-03 Joh Jacob Rieter & Co Ltd Method and apparatus for winding up strands of synthetic filaments
US2957635A (en) * 1955-01-21 1960-10-25 Du Pont Yarn winding
US3009661A (en) * 1960-06-24 1961-11-21 Du Pont Improved textile yarn windup mechanism
GB898038A (en) * 1959-10-15 1962-06-06 Sdruzeni Podniku Textilniho St Device for regulating the pressure between yarn packages and driving drums during yarn winding
US3363850A (en) * 1965-09-20 1968-01-16 American Enka Corp Constant pressure drive used in the formation of yarn packages
US3430875A (en) * 1967-06-19 1969-03-04 Whitin Machine Works Winding apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE34976C (de) * H. C. SERGEANT in New-York, Nr. 15 Dey Street, V. St. A Bohrmaschine für festes Gestein
US1267977A (en) * 1916-11-28 1918-05-28 Barber Colman Co Winder.
US2150951A (en) * 1936-01-15 1939-03-21 Du Pont Apparatus for the production of artificial thread
DE915193C (de) * 1942-11-12 1954-07-15 Schlafhorst & Co W Spulvorrichtung
AT211200B (de) * 1958-08-30 1960-09-26 Sdruzeni Podniku Textilniho St Vorrichtung zum Konstanthalten des Anpreßdruckes der Spule an die Antriebswalze bei Spulmaschinen
FR1404353A (fr) * 1964-08-19 1965-06-25 Barmag Barmer Maschf Dispositif d'alimentation du fil pour machines textiles
GB1138335A (en) * 1965-03-31 1969-01-01 Scragg & Sons Winding packages of bulked yarn
US3991950A (en) * 1973-02-09 1976-11-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for making yarn packages of cheese form by a textile machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR770474A (fr) * 1934-03-21 1934-09-14 Perfectionnements au bobinage des fils
GB530856A (en) * 1939-06-26 1940-12-23 William Gibson Improvements in or relating to roll winding machines
US2753125A (en) * 1953-08-10 1956-07-03 Joh Jacob Rieter & Co Ltd Method and apparatus for winding up strands of synthetic filaments
US2957635A (en) * 1955-01-21 1960-10-25 Du Pont Yarn winding
GB898038A (en) * 1959-10-15 1962-06-06 Sdruzeni Podniku Textilniho St Device for regulating the pressure between yarn packages and driving drums during yarn winding
US3009661A (en) * 1960-06-24 1961-11-21 Du Pont Improved textile yarn windup mechanism
US3363850A (en) * 1965-09-20 1968-01-16 American Enka Corp Constant pressure drive used in the formation of yarn packages
US3430875A (en) * 1967-06-19 1969-03-04 Whitin Machine Works Winding apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841574A (en) * 1970-09-01 1974-10-15 Barmag Barmer Maschf Winding device for synthetic threads
US3991950A (en) * 1973-02-09 1976-11-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Method and apparatus for making yarn packages of cheese form by a textile machine
US4022390A (en) * 1974-09-16 1977-05-10 Ateliers De Constructions Bourgeas-Fourgeirol Device for yarn spooling
US5054706A (en) * 1987-10-02 1991-10-08 Granger Maurice Device to adjust and dispense webs of rolled up material
US6572050B1 (en) * 1999-04-14 2003-06-03 Dupont-Toray Co. Ltd. Process for winding elastomeric fiber package

Also Published As

Publication number Publication date
FR2021132A1 (de) 1970-07-17
DE1952726B2 (de) 1980-05-22
CH481827A (de) 1969-11-30
GB1271828A (en) 1972-04-26
DE1952726C3 (de) 1986-03-27
DE1952726A1 (de) 1970-06-18

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