US3699809A - Apparatus for detecting the tension of yarns delivered from a rotary yarn beam - Google Patents

Apparatus for detecting the tension of yarns delivered from a rotary yarn beam Download PDF

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Publication number
US3699809A
US3699809A US126489A US3699809DA US3699809A US 3699809 A US3699809 A US 3699809A US 126489 A US126489 A US 126489A US 3699809D A US3699809D A US 3699809DA US 3699809 A US3699809 A US 3699809A
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US
United States
Prior art keywords
tension
suspension arm
yarns
yarn beam
yarn
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
US126489A
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English (en)
Inventor
Tokuji Komatsu
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.)
Tsudakoma Corp
Original Assignee
Tsudakoma Industrial Co 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 Tsudakoma Industrial Co Ltd filed Critical Tsudakoma Industrial Co Ltd
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Publication of US3699809A publication Critical patent/US3699809A/en
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H13/00—Details of machines of the preceding groups
    • 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
    • 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
    • B65H2701/38—Thread sheet, e.g. sheet of parallel yarns or wires

Definitions

  • ABSTRACT An apparatus for detecting the tension of yarns delivered from a rotary ,yarn beam that is movably [3O] Forelgn Apphcatmn Pnonty Dam supported at one end and supported for rotative April 16, 1970 Japan ..45/37030 movement on a pivotal arm at the other end.
  • the tension of the yarn causes the pivotal movement of the U-S. arm contacts and actuates an adjacently posi- CI- tioned detector that produces a ignal corresponding [58] Field of Search ..73/143; 242/75. 44 to the amount f tension
  • a visual indicator and a braking mechanism can be actuated by this signal.
  • the present invention relates to an apparatus for detecting tension of yarns being delivered from a rotary yarn beam.
  • a separate roller or rollers are provided in the yarn delivering path. Detection of the yarn tension is carried out through'a direct contact of the roller or rollers with the yarns.
  • This detection mechanism is, due to the direct contact of the yarns with the rollers, accompanied with a considerable disadvantage that the yarn sheets may be disturbed by the rollers resulting in an undesirable entanglement of adjacent yarns and yarn, quality is thereby degraded through such direct contact with the rollers.
  • the present invention provides a novel apparatus of a simple structure for detecting tension of yarns being delivered from a yarn beam correctly throughout an entire period of one yarn delivering cycle without any disturbance to the operation and any damage on the yarns.
  • the apparatus of the present invention utilizes a pivotal suspension arm holding a beam core shaft, which pivoting is caused by the tension operating on the yarn.
  • a detection terminal is accordingly actuated, and a signal is produced in proportion to the tension magnitude, i.e., the pivoting magnitude.
  • the signal may be used for-a visible indication of the tension and when required, for a control of a braking action to be exerted on the beam rotation.
  • FIG. 1 is a perspective illustration of one embodiment of the present invention.
  • FIG. 2 is a view of a modified embodiment'of the present invention seen in an axial direction of a yarn beam.
  • FIG. 1 an illustrated arrangement of the tension detecting apparatus of the present invention is shown.
  • One end 2a of a yarn beam 1 is supported by a stand 3 in an arrangement that is freely movable in diametral directions like a flexible joint mechanism.
  • a predetermined braking force is exerted upon the yarn beam 1 by a braking mechanism 4 disposed in combination with the stand 3 via a gear 6 connected to the braking mechanism 4 and a further gear 7 mounted timily on a core shaft 8 of the yarn beam 1 in an arrangement meshing with the gear 6.
  • another end 2b of the yarn beam 1 is mounted on a seat 9 formed on a lower end of a suspension arm 11, an upper end of which is pivotally mounted on a shaft 12 fixed to a stationary stand 13.
  • the yarn beam 1 is illustrated with two-dot chain lines for a clear illustration of the entire mechanism.
  • Yarns 14 are delivered from the yarn beam 1 in a sheet form upon corresponding axial rotation of the yarn beam 1.
  • a visible tension indicator 18 Being connected to this detection terminal 17 via an electric connection (not shown), a visible tension indicator 18 is provided.
  • a visible braking force indicator 19 Being connected to this detection terminal 17 via an electric connection (not shown), there is provided a visible tension indicator 18 is provided. Further, being connected to the braking mechanism 4 via an electric connection (not shown), there is provided a visible braking force indicator 19.
  • the magnitude of the pressure operative on the detection terminal 17 is proportional to the magnitude of the tension operating on the yarns 14 during the yarn delivery.
  • the detection terminal 17 emits an electric signal according to the magnitude of the pressure, and this signal is carried to the tension indicator 18 for a visible indication of the detected yarn tension.
  • FIG. 2 An arrangement illustrating this restrain of the pivoting movement of the suspension arm 11 is shown in FIG. 2, wherein the suspension arm 1 1 in the vicinity of its lower end is provided with a tension spring2l for urging the suspension arm 11 towards a counterdelivery direction of the tensioned yarns 14.
  • a spiral spring may be substituted for this tension spring 21 being mounted, for example, on the fixed shaft 12 in an arrangement to urge the suspension arm 11 in a direction for the above-described effect.
  • the tension operating on the yarns during their delivery from the yarn beam can be exactly detected without any possible damage of the yarn quality and complication of the mechanism for this function.
  • Apparatus for detecting tension of delivered yarns comprising a rotary yarn beam from which the yarns are delivered, said yarn beam having a first end and an opposite second end;
  • a fixed first stand providing a first seat to support said first end of said yarn beam, said first end being supportingly mounted to be transversely movable on said first seat to provide a flexible rotating support therebetween;
  • suspension arm pivotally mounted at its upper part on said second shaft, said suspension arm having a lowerpart formed as a second seat to support said second end of said yarn beam and allow swinging movement of said second end in response to changing tension of the yarns;
  • said suspension arm means comprises a projection adapted to provide a pressure contact with said detection means, the magnitude of the pressure determining the m itude of the signal enerated.
  • % Apparatus accordi g to claim 1 in which a tension indicator is associated with said detection means, said tension indicator being operable by the signal to give a visible indication of the tension of the yarns.
  • braking means is operable connected with said yarn beam to control the rotation thereof, and said braking means is operated by the signal to apply braking force to the yarn beam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Looms (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US126489A 1970-04-16 1971-03-22 Apparatus for detecting the tension of yarns delivered from a rotary yarn beam Expired - Lifetime US3699809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1970037030U JPS4938467Y1 (es) 1970-04-16 1970-04-16

Publications (1)

Publication Number Publication Date
US3699809A true US3699809A (en) 1972-10-24

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ID=12486227

Family Applications (1)

Application Number Title Priority Date Filing Date
US126489A Expired - Lifetime US3699809A (en) 1970-04-16 1971-03-22 Apparatus for detecting the tension of yarns delivered from a rotary yarn beam

Country Status (5)

Country Link
US (1) US3699809A (es)
JP (1) JPS4938467Y1 (es)
DE (1) DE2117967C3 (es)
FR (1) FR2077173A5 (es)
GB (1) GB1279072A (es)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466316A (en) * 1980-10-31 1984-08-21 Fuji Photo Film Co., Ltd. Photographic film trailing end cutting method and apparatus
US4842207A (en) * 1987-11-02 1989-06-27 Underground Technologies, Inc. Device for detecting and measuring the tension on a cable
US4890368A (en) * 1988-09-29 1990-01-02 Reed-Chatwood, Inc. Warper with tension isolator and tension controller
US5628227A (en) * 1994-10-06 1997-05-13 Htrc Automation Inc. Method and apparatus for determining at least one sheet stretch value of a roll of material
US6010089A (en) * 1998-09-11 2000-01-04 Rjs Corporation Tension control device
US20080001015A1 (en) * 2006-06-14 2008-01-03 Ching-Fong Hsieh Capstan
US20140206503A1 (en) * 2013-01-22 2014-07-24 Gorbel, Inc. Medical rehab lift system and method with horizontal and vertical force sensing and motion control
US10398618B2 (en) 2015-06-19 2019-09-03 Gorbel, Inc. Body harness
US10478371B2 (en) 2013-01-22 2019-11-19 Gorbel, Inc. Medical rehab body weight support system and method with horizontal and vertical force sensing and motion control

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006023529B4 (de) * 2006-05-19 2008-07-03 Tensometric-Meßtechnik GmbH Anordnung zur Zugkraftmessung von Endlosmaterial

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1103131A (en) * 1913-07-29 1914-07-14 George D De Grandpre Warp-thread-tension indicator for dressers.
US2430022A (en) * 1945-01-04 1947-11-04 Lambach Fritz Warp yarn feeding means for warp knitting machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1103131A (en) * 1913-07-29 1914-07-14 George D De Grandpre Warp-thread-tension indicator for dressers.
US2430022A (en) * 1945-01-04 1947-11-04 Lambach Fritz Warp yarn feeding means for warp knitting machines

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466316A (en) * 1980-10-31 1984-08-21 Fuji Photo Film Co., Ltd. Photographic film trailing end cutting method and apparatus
US4842207A (en) * 1987-11-02 1989-06-27 Underground Technologies, Inc. Device for detecting and measuring the tension on a cable
US4890368A (en) * 1988-09-29 1990-01-02 Reed-Chatwood, Inc. Warper with tension isolator and tension controller
US5628227A (en) * 1994-10-06 1997-05-13 Htrc Automation Inc. Method and apparatus for determining at least one sheet stretch value of a roll of material
US6010089A (en) * 1998-09-11 2000-01-04 Rjs Corporation Tension control device
US20080001015A1 (en) * 2006-06-14 2008-01-03 Ching-Fong Hsieh Capstan
US20140206503A1 (en) * 2013-01-22 2014-07-24 Gorbel, Inc. Medical rehab lift system and method with horizontal and vertical force sensing and motion control
US9510991B2 (en) * 2013-01-22 2016-12-06 Gorbel, Inc. Medical rehab lift system and method with horizontal and vertical force sensing and motion control
US10470964B2 (en) 2013-01-22 2019-11-12 Gorbel, Inc. Medical rehab lift system and method with horizontal and vertical force sensing and motion control
US10478371B2 (en) 2013-01-22 2019-11-19 Gorbel, Inc. Medical rehab body weight support system and method with horizontal and vertical force sensing and motion control
US10398618B2 (en) 2015-06-19 2019-09-03 Gorbel, Inc. Body harness

Also Published As

Publication number Publication date
DE2117967C3 (de) 1973-11-22
DE2117967B2 (de) 1973-05-03
GB1279072A (en) 1972-06-21
FR2077173A5 (es) 1971-10-15
DE2117967A1 (de) 1971-10-28
JPS4938467Y1 (es) 1974-10-22

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