US3043528A - Method and apparatus for automatically fixing the end of the thread or yarn of a wound package to the package support - Google Patents

Method and apparatus for automatically fixing the end of the thread or yarn of a wound package to the package support Download PDF

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Publication number
US3043528A
US3043528A US98969A US9896961A US3043528A US 3043528 A US3043528 A US 3043528A US 98969 A US98969 A US 98969A US 9896961 A US9896961 A US 9896961A US 3043528 A US3043528 A US 3043528A
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US
United States
Prior art keywords
thread
package
support
core
auxiliary winding
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
US98969A
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English (en)
Inventor
Siegenthaler Walter
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 Scharer AG
Original Assignee
Schaerer Maschf
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 Schaerer Maschf filed Critical Schaerer Maschf
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Publication of US3043528A publication Critical patent/US3043528A/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
    • B65H65/00—Securing material to cores or formers
    • B65H65/005—Securing end of yarn in the wound or completed package
    • 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 present invention concerns a method and an apparatus for automatically fixing the end of the thread or yarn of a wound bobbin or package to the package support at the end of the winding operation.
  • the method according to the invention comprises the steps of producing an auxiliary winding at the running-off end of the package support and axially spaced from the body of the main package, said auxiliary winding being produced in a plane inclined at an angle to the axis of rotation of the support, axially displacing said auxiliary winding on the support into a plane extending at right angles to the said axis of rotation, lifting a portion of the displaced auxiliary winding from contact with the support at a point revolving around the periphery of the support, and placing the thread running-up to the support underneath the lifted portion of the auxiliary windings, whereby said thread is covered by the auxiliary winding making contact again with the support immediately behind said revolving lifted portion of the winding.
  • a further object of the invention is the provision of an apparatus for carrying out the above defined method.
  • this apparatus comprises a rotatable package support, a drivercoupled to one end of the support, a freely rotatable bearing head frictionally engaging the other end of the package support, a centrifugal lever pivotally mounted on said bearing head for movement in an axial plane, said centrifugal lever having a lever arm abutting against the surface of the package support in proximity to the frictionally engaged end thereof when the bearing head rotates, said lever arm being provided with an inclined surface adapted, upon rotation of said bearing head, to coincide with the path of the running-up thread forming an auxiliary winding on said support, and to engage underneath said auxiliary winding.
  • FIG. 1 digr-ammatically shows the package support mounted in its driving device and coupled to the bearing head, during the production of the auxiliary winding
  • FIG. 2 is an axial section through the bearing head, drawn to a larger scale, showing the production of the auxiliary winding at the running-off end of the package support.
  • FIGS. 3 and 4 are views similar to FIG. 2 showing a first and a second phase of the relative rotation of the bearing head and the package support occurring after a braking of the support.
  • FIG. 5 shows diagrammatic views of the one end, with the auxiliary winding in various phases of fixing the end of the thread.
  • FIG. 6 is a side view of the end of the support showing the end of the thread fixed by the auxiliary winding.
  • numeral 1 represents the bobbin supporting core of a weft winding machine, which core is clamped for rotation with a driver 2.
  • the running-off end 1a of the core 1 is slightly rounded and mounted with frictional engagement in a coupling socket 3 of a bearing head 4.
  • the coupling socket 3 is enclosed by a diametrically slotted outer shell 5 of the bearing head 4.
  • An approximately -G-shaped centrifugal lever 7 is supported on a pin 11 for pivotal movement in an axial plane in the slot 12 of the peripheral shell 5.
  • the arm 7a of the lever 7 is formed as centrifugal weight for the lighter arm 7b.
  • This arm 7b axially projects out of the coupling socket 3 and terminates in a wedge-shaped tapering finger 8, the external surface of which forms an acute angle with the axis of rotation of the core, when said finger abuts against the core end 1a.
  • the bearing head 4 is mounted to be freely rotatable upon a pin 9.
  • the mode of operation of the described device is as follows: During the normal winding of a package, the core 1 is rotated by the driver 2. The end 1a of the core, mounted with frictional engagement in the coupling socket, drives the bearing head 4 at the same speed. After the thread guide 10 (FIG. 1) has carried out the required number of strokes along the core 1 for producing the package A, it is moved out of the zone of the main package A and into the zone of the free core end 1a, so that the thread tangentially passes onto the end of the core at a point situated axially outward, i.e. towards the right of the end of the finger 8, which end abuts against the core owing to centrifugal action.
  • the bearing head 4 which by means of the coupling socket 3 only frictionally engages the core end, utilizes its flywheel inertia and continues to rotate for a sort time at undiminished velocity, whereby a relative rotation between the core 1 and the finger 8 results, as the finger 8 rotates in advance of the core 1.
  • the driving direction of the core 1 is indicated in FIGS. 1-3 by an arrow (1. Owing to the lead of the finger 8 with respect to the core 1 the auxiliary winding B, engaged by said finger from underneath, is forced from its inclined position with respect to the axis of the core into a radial plane (FIG. 3).
  • a method for automatically fixing the end of the thread or yarn of a wound pack-age to the package support which comprises the steps of producing an auxiliary winding at the running-off end of the package support and axially spaced from the body of the main package, said auxiliary winding being produced in a plane inclined at an angle to the axis of rotation of the support, axially displacing said auxiliary Winding on the support into a plane extending at right angles to the said axis of rotation'to loosen the winding, lifting a portion of the displaced auxiliary winding from contact with the support at a point revolving around the periphery of the support,
  • Apparatus for automatically fixing the end of the thread or yarn of a wound package to the package support comprising a rotatable package support, a driver coupled to one end of the support, a freely rotatable bearing head frictionally engaging the other end of the package support, a centrifugal lever pivotally mounted on said bearing head for movement in an axial plane, said centrifugal lever having a lever arm abutting against the surface of the package support in proximity to the frictionally engaged end thereof when the bearing head r0- tates, said lever arm being provided with an inclined surface adapted, upon rotation of said bearing head, to coincide with the path of the running-up thread forming an auxiliary winding on said support, and to engage underneath said auxiliary winding.
  • centrifugal lever is C-shaped and is mounted in said bearing head so as to be movable in an axial plane, said lever having two arms of unequal weight, the heavier arm serving as a centrifugal weight, While the free end portion of the lighter arm forms the inclined surface adapted to engage the auxiliary winding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
US98969A 1960-03-31 1961-03-28 Method and apparatus for automatically fixing the end of the thread or yarn of a wound package to the package support Expired - Lifetime US3043528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH364260A CH377255A (de) 1960-03-31 1960-03-31 Verfahren und Einrichtung zum selbsttätigen Fixieren des Fadenendes einer Spulenwicklung auf dem Wicklungsträger

Publications (1)

Publication Number Publication Date
US3043528A true US3043528A (en) 1962-07-10

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ID=4260360

Family Applications (1)

Application Number Title Priority Date Filing Date
US98969A Expired - Lifetime US3043528A (en) 1960-03-31 1961-03-28 Method and apparatus for automatically fixing the end of the thread or yarn of a wound package to the package support

Country Status (6)

Country Link
US (1) US3043528A (de)
BE (1) BE594192A (de)
CH (1) CH377255A (de)
ES (1) ES262720A1 (de)
GB (1) GB941389A (de)
NL (2) NL253557A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385533A (en) * 1965-05-24 1968-05-28 Mackie & Sons Ltd J Winding mechanisms
US4058264A (en) * 1974-07-25 1977-11-15 Teijin Limited Yarn wound package provided with a transfer tail wind and method for forming the transfer tail wind
CN101839355A (zh) * 2009-03-16 2010-09-22 喜开理株式会社 旋转型切换阀

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1141604A (en) * 1914-06-09 1915-06-01 Albert Belz Spooling-machine.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1141604A (en) * 1914-06-09 1915-06-01 Albert Belz Spooling-machine.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385533A (en) * 1965-05-24 1968-05-28 Mackie & Sons Ltd J Winding mechanisms
US4058264A (en) * 1974-07-25 1977-11-15 Teijin Limited Yarn wound package provided with a transfer tail wind and method for forming the transfer tail wind
CN101839355A (zh) * 2009-03-16 2010-09-22 喜开理株式会社 旋转型切换阀
CN101839355B (zh) * 2009-03-16 2014-06-18 喜开理株式会社 旋转型切换阀

Also Published As

Publication number Publication date
ES262720A1 (es) 1961-04-16
CH377255A (de) 1964-04-30
GB941389A (en) 1963-11-13
NL120145C (de)
NL253557A (de)
BE594192A (fr) 1960-12-16

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