US3873044A - Dual function in-line tensiometer-yarn tension controller - Google Patents

Dual function in-line tensiometer-yarn tension controller Download PDF

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Publication number
US3873044A
US3873044A US406506A US40650673A US3873044A US 3873044 A US3873044 A US 3873044A US 406506 A US406506 A US 406506A US 40650673 A US40650673 A US 40650673A US 3873044 A US3873044 A US 3873044A
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US
United States
Prior art keywords
pulleys
yarn
pulley
continuous
tensile member
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
US406506A
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English (en)
Inventor
Thomas A Flower
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.)
Honeywell International Inc
Original Assignee
Allied Chemical Corp
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 Allied Chemical Corp filed Critical Allied Chemical Corp
Priority to US406506A priority Critical patent/US3873044A/en
Priority to CH1140374A priority patent/CH602469A5/xx
Priority to IT28363/74A priority patent/IT1022827B/it
Priority to DE19742448775 priority patent/DE2448775A1/de
Priority to AT823774A priority patent/AT345132B/de
Priority to BE149495A priority patent/BE821029A/fr
Priority to NL7413482A priority patent/NL7413482A/xx
Priority to LU71090A priority patent/LU71090A1/xx
Priority to FR7434657A priority patent/FR2247412B1/fr
Application granted granted Critical
Publication of US3873044A publication Critical patent/US3873044A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/36—Floating elements compensating for irregularities in supply or take-up of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/40—Applications of tension indicators
    • 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

  • ABSTRACT A dual-function in-line tensiometer-yarn tension controller to constantly maintain and measure tension on a running length of continuous filament comprising in combination a housing with an elongated slot, a first, second and third yarn guide, a narrow, very flexible, thin, continuous metal band, and an opposed pair of spring loaded pulleys have been designed.
  • the first and third guides have been mounted at one end of the slot in the housing, and the second guide is slidably mounted in the slot and fixed to the metal band.
  • the band is mounted to pass around the pulleys under tension and the pulleys are rotatably mounted at either end of the slot in the housing with the band width facing the slot.
  • One of the pulleys is spring-loaded to bias against rotational movement and the other is spring loaded to bias against motion toward the other pulley.
  • This invention relates to a filament tension controller or a dual-function in-line tensiometer-yarn tension controller to constantly maintain and measure tension on a running length of continuous filament, such as multifilament, or monofilament yarn, either natural or synthetic.
  • In-line tensioners are known, for example, US. Pat. 3,599,300.
  • Tensioning apparatus which can also indicate the amount of tension is also known in US. Pat. No. 3,692,251 and tension meters are known for example in US. Pat. No. 3,344,664.
  • Prior art inline devices generally respond to about a minimum 20 gram change in the tension in the running length of filament. Small fluctions do not cause response.
  • the device of this invention is designed so it can be sensitive to as small as a 1 gram change in yarn tension, 1
  • the device of this invention not only has fast response and low inertia, it provides a long storage, if necessary, during transfer of yarn from one bobbin to another. It also has small physical size, controllable tension curves, and linear travel.
  • This device can be used to constantly maintain and measure tension in any filament process operation where a running length of continuous filament, natural or synthetic, exists. For example, it can be used in the continuous processing of yarn, synthetic or natural, monofilament or multifilament yarn to be used for tire and industrial uses, apparel, or carpets.
  • the apparatus of this invention is a yarn tension controller or a dual-function in-line tensiometer-tension controller constantly maintaining and/or measuring tension on a running length of yarn
  • a yarn guide means to restrain the yarn guide to movement in one line or plane, such as a frame, or other rigid member, a highly flexible, highly responsive, continuous tensile member having low mass, such as a narrow thin continuous metal band, an opposed pair of pulleys, an optional means to measure position of the yarn guide, means to provide tension in the continuous tensile member, such as means to bias one of the pulleys against motion toward the other pulley attached to the pulley; this bias means could be a spring; means to bias at least one pulley against rotational movement attached to the pulley, such as a spring attached with a noncontinuous, highly flexible, highly responsive, tensile member having low mass, such as a noncontinuous narrow thin metal band.
  • the means to bias at least one of the pulleys against rotational movement operates to urge rotation of the pulley opposite to the rotation caused by the action of the yarn on the movable guide mounted on the continuous tensile member or band.
  • the guide is restrained in the means to restrain the yarn guide movement in one line or plane and fixably mounted on the continuous tensile member.
  • This movable yarn guide then moves along the line which can be any line congruent with and parallel to a line between and perpendicular to the pulley axes and extending from one pulley axis to the other pully axis.
  • These opposed pairs of pulleys are mounted with their axes parallel to one another and spaced apart.
  • the continuous tensile member is mounted to pass around the pulleys under tension and the pulleys are rotatably mounted at either end of the means to restrain the yarn guide.
  • the yarn tension controller or dual-function in-line tensiometer-yarn tension controller to constantly maintain and/or measure tension on a running length of yarn comprises, in combination, a housing with an elongated slot, 21 first, second and third yard guide, a narrow, thin, highly flexible, continuous tensile member and an opposed pair of spring loaded pulleys.
  • An optional means to measure the position of the second yarn guide can also be used in combination.
  • the first and third guides are flxably mounted at one end of the slot in the housing and the second guide is slidably mounted in the slot and fixably mounted on the band.
  • the band is mounted to pass around the pulleys under tension, and the pulleys are rotatably mounted at either end of the slot in the housing with the band width facing the slot.
  • One of the pulleys is spring loaded to bias rotational movement and the other pulley is spring loaded tobias against motion transverse to the pulley axis.
  • the preferred means to attach the means to bias against rotational movement of the pulley is a noncontinuous, highly flexible, highly responsive tensile member having low mass.
  • Either the continuous or the noncontinuous tensile member can be a narrow, thin, highly flexible metal band, a high strength synthetic polymer ribbon or high strength low mass cable.
  • the means to bias the pulleys can be a helical coil spring or any other type of spring or possibly a hydraulic system with spring-like characteristics.
  • the bias means against the rotational movement could be a torsional spring to cause wind-up.
  • a metal band is used in the preferred embodiment, it must be a low mass, highly flexible highly responsive metal band having thickness less than 0.01 inch.
  • the continuous bands should have a preferable thickness of from about 0.001 to 0.008 inch and noncontinuous metal band should have a preferable thickness from about 0.0001 to about 0.004 inch.
  • the width of the metal band is relatively unimportant but can run from a fraction of an inch to several inches wide.
  • the preferable method to attach the means to bias the pulley against rotational movement is to attach a narrow, thin, noncontinuous highly flexible metal band to a smaller pulley integral with the pu ley upon which the continuous band is mounted.
  • the small diameter pulley provides a mechanical advantage by the ratio of large to small diameter.
  • the ration of diameters of the large pulley to the small pulley should be from about 2 to l to about 10 to l and the noncontinuous band thickness should correlate with the small pulley diameter.
  • the yarn guide of this invention can be anyof the known types of guides such as pin, ceramic slot, metal slot or preferably, a rotatingwheel.
  • FIG. 1 is a top view ofthe housing and yarn guides.
  • FIG. 2 is a side elevation view of the housing with the cover removed.
  • FIG. 3 is a front elevation cross-sectional view of the housing.
  • FIG. 4 is a partial front elevation cross-sectional view DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • the drawings describe the preferred embodiment. Like numbers describe like elements in all the drawmgs.
  • FIG. 1 the top view of the housing and yarn guides shows housing 1 and yarn guides 2, 3 and 4.
  • Yarn guide 3 is shown in mounting 25.
  • FIG. 2 the elevation side view, the housing with the cover removed, yarn guide 4 is shown in slot 5 in housing I mounted on continuous metal band 6.
  • Noncontinuous metal band 7 connects pulley 10 with spring 12 mounted on rod 13 fixed in mounted bracket 14.
  • Opposed pulleys 8 and 9 are both spring loaded.
  • Pulley 8 is spring loaded to bias against motion toward the opposite pulley, such as transverse to the axis of the pulley, by spring 11 mounted between ball members 22 and 23 as shown.
  • Pulleys 9 and 10 are an integral piece mounted on axle 24. As-can be seen, pulley-10 is much smaller than pulley 9 for mechanical advantage.
  • Pulleys 8, 9 and 10 are mounted on stationary axles 24 and 26 by antifriction bearings,such as ball bearings.
  • Axle 24 is rigidly mounted in the side of housing I and into mounting assembly '15.
  • Axle 26 is similarly mounted as shown.
  • Yarn guide 4 is attached to mounting assembly 21 in a fixed position on continuous metal band 6 by passing continuous metal band 6 over pins 19 and and securing.
  • Mounting assembly 21 contains pins 19 and 20 and rollers 16, 17 and 18, shown moreclearly in FIG. 4, to maintain mounting 21 in line with slot 5 in housing 1.
  • FIG. 3 shows a front cross-section view of housing with elements as described above shown in a front view relationship.
  • FIG. 4 shows a partial front cross-sectional view of the housing 1 clearly showing how the yarn guide 4 is mounted on the metal band and mounted in a slot of the housing by means of the rollers 16, 17, 18 and pins 19 and 20 and mounting assembly. 21 as described above. Yarn guide 4 is removed to show the details.
  • FIG. 5 shows housing 1 with scale 27 mounted thereon to measure the position of movable yarn guide 4 as it moves along a line or plane in slot 5, not seen in this view.
  • the apparatus of this invention operates as follows.
  • the running length of yarn passes over yarn guide 2, travels around movable yarn guide 4 and back over yarn guide 3.
  • Yarn guides 2.and 3 are optional in that the running length of yarn can simply be looped around movable yarn guide 4 as in prior art patents US. Pat. Nos. 3,350,022, 2,176,182 and 3,393,880.
  • the movable yarn guide then regulates tension by the unique action of the apparatus of this invention. Also, by use of the scale 27 it can measure tension in a relative manner, which could be calibrated oneach apparatus to an absolute number.
  • the movable yarn guide 4 moves in slot 5 on the continuous tensile member or band 6.
  • Movement of guide 4 is subject to the biasing means or spring 12, band 7 and rod 13 on pulley 9 as shown in FIGS. 2 and 3.
  • the tension of the running length of yarn is regulated by the bending modulus of the continuous tensile member or band 6 as it bends around pulleys 8 and 9 and by the spring 12 and bending modulus of band 7 (noncontinuous tensile member) as it bends around pulley 10.
  • Band 6 is held taut by biasing means or spring 11 biasing pulley 8 by means of ball member Hand 23.
  • a dual-function in-line tensiometer-yarn tension controller to constantly maintain and measure tension on a running length of yarn comprising in combination a movable yarn guide,
  • said urging means including a resiliently biased, noncontinuous, highly flexible, highly responsive tensile member having low mass, said one direction of rotation being opposite to the direction of rotation caused by movement of said guide and said continuous tensile member due to a tensioned yarn.
  • a dual-function in-line tensiometer-yarn tension controller to constantly maintain and measure tension on a running length of continuous filaments comprising in combination a housing having an elongated slot,
  • said first and third guides fixably mounted at one end of said housing
  • a tensiometer-yarn tension controller of claim 3 wherein said noncontinuous tensile member is connected to said pulley by means of another pulley integral with and on the same axis with said pulley and having a smaller diameter.
  • the tensiometer-yarn tension controller of claim 7 wherein the ratio of the diameter of the integral pulleys is from about 2 to l to about 10 to l.
  • An in-line yarn tension controller to maintain tension on a running length of yarn comprising in combination a movable yarn guide,
  • said movable yarn guide mounted rigidly upon said continuous tensile member
  • said means for urging said one of said pulleys to rotate in one direction of rotation includes a resiliently biased, noncontinuous, highly flexible, highly responsive tensile member having low mass.
  • said means to provide tension is a means to bias either one of said pulleys against motion toward the other pulley.
  • both said continuous and said noncontinuous'tensile members are a narrow, flexible, thin, metal band.
  • both said means to provide tension and said means for urging said one of said pulleys to rotate include springs.
  • An in-line yarn tension controller to constantly maintain tension on a running length of continuous filament comprising in combination a housing with'an elongated slot,
  • said first and third guides fixably mounted at one end of said slot and said housing
  • said band mounted to pass around said pulleys under tension said pulleys rotatably mounted at either end of said slot in said housing with the band width facing said slot
  • said means for urging said one of said pulleys to rotate in one direction of rotation includes a resiliently biased, noncontinuous, highly flexible, highly responsive tensile member havinglow mass.

Landscapes

  • Tension Adjustment In Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
US406506A 1973-10-15 1973-10-15 Dual function in-line tensiometer-yarn tension controller Expired - Lifetime US3873044A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US406506A US3873044A (en) 1973-10-15 1973-10-15 Dual function in-line tensiometer-yarn tension controller
CH1140374A CH602469A5 (fr) 1973-10-15 1974-08-21
IT28363/74A IT1022827B (it) 1973-10-15 1974-10-11 Regolatore rispettivamente misuratore per la regolazione della tensione di filamenti
DE19742448775 DE2448775A1 (de) 1973-10-15 1974-10-12 Fadenspannungsregler bzw. -messer
AT823774A AT345132B (de) 1973-10-15 1974-10-14 Schleifenfuehrung zur regelung bzw. konstanthaltung und/oder messung der spannung eines laufenden garnes bzw. fadens
BE149495A BE821029A (fr) 1973-10-15 1974-10-14 Appareil pour reguler et mesurer la tension d'un fil en defilement
NL7413482A NL7413482A (nl) 1973-10-15 1974-10-14 Draadspanningsregelaar respectievelijk -meter.
LU71090A LU71090A1 (fr) 1973-10-15 1974-10-14
FR7434657A FR2247412B1 (fr) 1973-10-15 1974-10-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US406506A US3873044A (en) 1973-10-15 1973-10-15 Dual function in-line tensiometer-yarn tension controller

Publications (1)

Publication Number Publication Date
US3873044A true US3873044A (en) 1975-03-25

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Application Number Title Priority Date Filing Date
US406506A Expired - Lifetime US3873044A (en) 1973-10-15 1973-10-15 Dual function in-line tensiometer-yarn tension controller

Country Status (9)

Country Link
US (1) US3873044A (fr)
AT (1) AT345132B (fr)
BE (1) BE821029A (fr)
CH (1) CH602469A5 (fr)
DE (1) DE2448775A1 (fr)
FR (1) FR2247412B1 (fr)
IT (1) IT1022827B (fr)
LU (1) LU71090A1 (fr)
NL (1) NL7413482A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311285A (en) * 1980-07-07 1982-01-19 Allied Corporation Yarn winding method and apparatus to maintain tension during tail formation
US5101735A (en) * 1990-08-27 1992-04-07 Williams Matti I Constant tension apparatus and method with eccentric cam to regulate tension
US20080303259A1 (en) * 2007-06-08 2008-12-11 Jerry Edwards Towed vehicle protection device
US20150233465A1 (en) * 2014-02-14 2015-08-20 GM Global Technology Operations LLC Thermal bypass valve using shape memory alloys

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1626658A (en) * 1922-04-29 1927-05-03 Westinghouse Lamp Co Manufacture of incandescent lamps
US1904678A (en) * 1928-08-11 1933-04-18 Celanese Corp Dynamometer
US2472142A (en) * 1946-11-08 1949-06-07 Boulin Instr Corp Tensiometer
US2570486A (en) * 1947-02-12 1951-10-09 American Viscose Corp Deflection tensiometer
US3177708A (en) * 1960-06-14 1965-04-13 Tensitron Inc Tension meter
US3210994A (en) * 1963-10-31 1965-10-12 Erwin J Saxl Tension gage and control for filamentary materials
US3344664A (en) * 1965-04-08 1967-10-03 Tensitron Inc Tension meter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1626658A (en) * 1922-04-29 1927-05-03 Westinghouse Lamp Co Manufacture of incandescent lamps
US1904678A (en) * 1928-08-11 1933-04-18 Celanese Corp Dynamometer
US2472142A (en) * 1946-11-08 1949-06-07 Boulin Instr Corp Tensiometer
US2570486A (en) * 1947-02-12 1951-10-09 American Viscose Corp Deflection tensiometer
US3177708A (en) * 1960-06-14 1965-04-13 Tensitron Inc Tension meter
US3210994A (en) * 1963-10-31 1965-10-12 Erwin J Saxl Tension gage and control for filamentary materials
US3344664A (en) * 1965-04-08 1967-10-03 Tensitron Inc Tension meter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311285A (en) * 1980-07-07 1982-01-19 Allied Corporation Yarn winding method and apparatus to maintain tension during tail formation
US5101735A (en) * 1990-08-27 1992-04-07 Williams Matti I Constant tension apparatus and method with eccentric cam to regulate tension
US20080303259A1 (en) * 2007-06-08 2008-12-11 Jerry Edwards Towed vehicle protection device
US8708369B2 (en) * 2007-06-08 2014-04-29 Jerry A. Edwards Towed vehicle protection device
US20150233465A1 (en) * 2014-02-14 2015-08-20 GM Global Technology Operations LLC Thermal bypass valve using shape memory alloys
US9951858B2 (en) * 2014-02-14 2018-04-24 GM Global Technology Operations LLC Thermal bypass valve using shape memory alloys

Also Published As

Publication number Publication date
CH602469A5 (fr) 1978-07-31
BE821029A (fr) 1975-04-14
LU71090A1 (fr) 1975-06-24
AT345132B (de) 1978-08-25
NL7413482A (nl) 1975-04-17
ATA823774A (de) 1977-12-15
IT1022827B (it) 1978-04-20
FR2247412B1 (fr) 1979-05-25
DE2448775A1 (de) 1975-04-17
FR2247412A1 (fr) 1975-05-09

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