US3769786A - Regulating belt tension in tangential-belt drive arrangement for the whorls of a yarn-twisting machine - Google Patents

Regulating belt tension in tangential-belt drive arrangement for the whorls of a yarn-twisting machine Download PDF

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Publication number
US3769786A
US3769786A US00230682A US3769786DA US3769786A US 3769786 A US3769786 A US 3769786A US 00230682 A US00230682 A US 00230682A US 3769786D A US3769786D A US 3769786DA US 3769786 A US3769786 A US 3769786A
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United States
Prior art keywords
belt
slider
tension
pressure
elements
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Expired - Lifetime
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US00230682A
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English (en)
Inventor
A Greive
T Tiemann
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.)
Hamel Zwirnmaschinen GmbH
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Hamel Zwirnmaschinen GmbH
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/24—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles
    • D01H1/241—Driving or stopping arrangements for twisting or spinning arrangements, e.g. spindles driven by belt

Definitions

  • a motor may be coupled UNITED STATES PATENTS toone of the threaded elements and to the switch to operate this motor and readjust tension automatically.
  • 3,638,781 2/1972 Comley 74/242.1lC X 2,689,448 9/1954 Winslow et al. 57/105 10 Claims, 5 Drawing Figures Patented Nov. 6, 1973
  • the present invention relates to an apparatus for regulating the tension in a belt of a tangential-belt-drive arrangement for driving one or more rows of whorls in a yarn-twisting machine. More specifically this invention concerns a method of and and apparatus for ad justing the tension in such a drive arrangement used in thread or yarn spinning and twisting installations.
  • the tension of the belt in such arrangements is of extreme importance. If the belt loosens, the inertia or friction at each whorl will greatly decrease energy transmission to the spindles, thereby making these spindles rotate at a reduced rate so that the spinning or twisting will take place nonuniformly. This problem is aggravated by the great length of the belt, since the capacity of stretch in a belt is directly proportional to its length.
  • Another object is to provide improved apparatus for regulating the belt tension in such an arrangement.
  • a further object is to provide an apparatus which is relatively simple and which accurately maintains the tension in such a belt-drive arrangement above a certain minimum.
  • SUMMARY OF THE INVENTION tween the slider and the support such that relative rotation of these elements in one sense will displace the slider and increase belt tension.
  • the sensitive device responsive to fluid pressure
  • a switch such that when the force exerted by the elements against the slider drops below a predetermined level corresponding to minimum belt tension the switch is actuated.
  • Means is provided to rotate one of the elements to regulate this tension when the switch is actuated.
  • Such means can be a simple motor connected by a gear to one of the threaded elements and operated directly by the pressure switch.
  • FIG. 1 is a side view, partly in section, showing a first embodiment of the present invention
  • FIGS. 2 and 3 are views similar to FIG. 1 showing two further embodiments of the present invention
  • FIG. 4 is a top view of the embodiment of FIG. 3;
  • FIG. 5 is a diagrammatic view of the control circuit of FIGS. 3 and 4. l
  • a drivearrangement has a pair of uprights 10 and 10 between which a pair of horizontal beams 12 and 12' extend.
  • a pair of parallel and horizntal tie rods 14 and 14 are carried in seats 16 on the two uprights 10 and 10' and a slider 18 is displaceable along these rods 16 and 16'.
  • the slider 18 carries an electric drive motor 20 having a vertical output shaft 22 on which a drive pulley 24 is mounted.
  • a flat drive belt 26 is spanned over this pulley and engages the whorls of spindles 84 with the help of idler pulleys or wheels 83 that urge this belt 26 into tangential contact with these whorls 85. Empty cores are fitted over these spindles 84 for twisting yarn.
  • a forklike support 28 rotatably supports an internally threaded nut 31 on the support 10. This nut 31 is pro vided with a bevel gear 30 embraced by the support 28.
  • a threaded spindle 32 is received in thenut 31 and has an unthreaded end portion 34 formed with an axial slot into which fits a key 40 on a bore 36 in an extension 38 of the slider 18.
  • the end of the unthreaded portion bears on a piston-cylinder arrangement 42 constituted by a piston 44 formed on the spindle 32, and a cylinder 46 provided on the slider 18 together forming a chamber filled with hydraulic fluid.
  • a diaphragm can beprovided in place of the piston 44.
  • a conduit 48 connects the chamber 46 with a pressure-sensitive switch 50 comprising a wiper 54 pivotal through a 270 arc and engageable at the arc extremeties with adjustably displaceable sectors 52 and 52' connected to a normally open latching relay 55 in turn connected through wires 56 to a drive motor 58 carrying a bevelgear 60 meshing with the gear 30.
  • a pressure-sensitive switch 50 comprising a wiper 54 pivotal through a 270 arc and engageable at the arc extremeties with adjustably displaceable sectors 52 and 52' connected to a normally open latching relay 55 in turn connected through wires 56 to a drive motor 58 carrying a bevelgear 60 meshing with the gear 30.
  • the device functions as follows:
  • the wiper 54 will lie between the sectors 52 and 52' and the motor 58'will not operate.
  • Themotor 20 will turn and drive the two rows of spindles 84.
  • the wiper 54 will move back, counterclockwise, until it engages the sector 52. This will close and latch the relay 55 and cause the motor 58 to operate and screw the sleeve 31 around the threaded spindle 32, thereby moving the slider 18 to the right as seen in FIG. 1. Such movement will increase belt tension, thereby moving the wiper 54 clockwise until it engages the sector 52. Once this sector is engaged the relay 55 is unlatched and the motor 58 is stopped.
  • the provision of the second sector 52' eliminates hunting of the circuit.
  • the outer sector contact 52 may be on disk with respect to which the inner sector contact 52 is angularly adjustable to vary the spacing between contacts 52 and 52 (and 152 and 152').
  • FIG. 1 Reference numerals of FIG. 1 are increased by 100 and used wherever applicable in FIG. 2, where similar structure is shown.
  • the slider 118 supports the drive motor 120 whose shaft 122 carries a two-belt pulley 74.
  • the slider 62 serves as mount for a vertical shaft 64 carrying a two-part pulley 66 whose upper region 68 is looped by the belt 126 and whose lower part 70 is connected via two V-belts 72 to the pulley 74.
  • a spindle 76 is threaded into the slider 62 at 80 and is connected axially to the slider 118 at 78. This spindle 76 is provided with a handwheel 82 that allows the user to adjust tension in the belts 72 by separating the carriages 62 and 116. Both sliders 116 and 62 are displaced by the spindle 132 as in the FIG. 1 embodiment.
  • Members 52 and 152 constitute circuit-closing contacts while members 52', 152' are circuit-opening con tacts.
  • FIGS. 3-5 structure identical to that of FIG. 1 is shown with its referencenumeral increased by 200.
  • the spindle 232 is provided on its unthreaded portion 234 with a handwheel 88 and this spindle has its threaded portion 92 threaded into the support 210 at 90.
  • a bearing 86 is provided between spindle 234 and piston 244.
  • the support itself constitutes one of the adjustment elements.
  • the indicator 250 has a wiper 254 which is engageable with a pair of displaceable sectors 96 and 98, the latter being further counterclockwise than the the wiper 254 and one contact of a normally open relay 95 and its other side connected to one side of a signal horn and lamp 94 and to two relays 95 and 97. These relays are both shown in the actuated positions.
  • the wiper will move back on into the sector 98 where it will close the normally open relay 95 through leads 100, which in turn operates the normally closed heavyduty relay 97 that shuts off the supply of power from three-phase source 93 to motor 220. Actuation of the hand wheel to tighten the belt is all that is needed to return the drive to operation.
  • the switches 89 can be used to cut out either of the sectors 96 or 98, if desired.
  • a minimum of working parts serves to keep a predetermined amount of tension in the belt which engages the whorls of the many bobbin-carrying spindles.
  • An apparatus for regulating the tension in the belt of a tangential-belt-drive arrangement having a belt spanned over a drive pulley and tangentially engaging a plurality of bobbin spindles comprising:
  • a slidable member displaceable on said support member and rotatably carrying one of said pulleys whereby sliding of said slidable member in one direction increases the tension in said belt
  • fluid-pressure-sensitive means between one of said elements and one of said members for producing a signal on force exerted by said elements against said slidable member dropping below a predetermined level representing a minimum belt tension
  • said pressure-sensitive means includes a fluid-pressure sensor between said one element and said one member and a switch operatively connected thereto, said switch being connected to said rotating means.
  • said pressure sensor includes a cylinder body and a piston body, one of said bodies being mounted on said one element and the other body on said one member.
  • a method of regulating the tension in a tangentialbelt-drive arrangement having a pulley carried on a slider displaceable relative to a support to adjust the belt tension by means of a pair of threadedly interengaged elements braced between the slider and the support, said method comprising the steps of:

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00230682A 1971-03-02 1972-03-01 Regulating belt tension in tangential-belt drive arrangement for the whorls of a yarn-twisting machine Expired - Lifetime US3769786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712109888 DE2109888A1 (de) 1971-03-02 1971-03-02 Tangentialriemenantrieb fuer Spindeln von Spinn- und Zwirnmaschinen

Publications (1)

Publication Number Publication Date
US3769786A true US3769786A (en) 1973-11-06

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US00230682A Expired - Lifetime US3769786A (en) 1971-03-02 1972-03-01 Regulating belt tension in tangential-belt drive arrangement for the whorls of a yarn-twisting machine

Country Status (9)

Country Link
US (1) US3769786A (de)
AT (1) AT330035B (de)
BR (1) BR7201061D0 (de)
CH (1) CH529232A (de)
DE (1) DE2109888A1 (de)
FR (1) FR2128557B1 (de)
GB (1) GB1348872A (de)
HU (1) HU164435B (de)
IT (1) IT953427B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679389A (en) * 1985-02-13 1987-07-14 Zinser Textilmaschinen Gmbh Spinning or twisting machine
US5069027A (en) * 1988-08-11 1991-12-03 Fritz Stahlecker Tangential belt drive for spinning or twisting machines

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921988A1 (de) * 1989-07-04 1991-01-17 Rieter Ag Maschf Textilmaschine, insbesondere ringspinnmaschine, sowie verfahren zur steuerung des antriebs einer solchen maschine
DE3939593A1 (de) * 1989-11-30 1991-06-06 Palitex Project Co Gmbh Tangentialriemenantrieb fuer spindeln einer textilmaschine, insbesondere einer zwirnmaschine
DE19500150C2 (de) * 1995-01-04 2002-10-10 Ksb Ag Aus einer Arbeitsmaschine und einem Motor bestehendes Aggregat
DE102017124132A1 (de) * 2017-10-17 2019-04-18 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren bzw. Vorrichtung zum Betreiben einer Ringspinnmaschine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1860955A (en) * 1931-09-24 1932-05-31 Atwood Machine Co Spinning and twisting machine
US2176839A (en) * 1938-08-08 1939-10-17 Atwood Machine Co Spindle driving means for textile machines
US2279537A (en) * 1941-02-11 1942-04-14 Atwood Machine Co Spinning and twisting frame
US2689448A (en) * 1952-03-03 1954-09-21 Stevens & Co Inc J P Motor drive unit for textile winding machines and the like
US3638781A (en) * 1970-01-30 1972-02-01 Movor & Coulson Ltd Conveyor belt-tensioning means

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1860955A (en) * 1931-09-24 1932-05-31 Atwood Machine Co Spinning and twisting machine
US2176839A (en) * 1938-08-08 1939-10-17 Atwood Machine Co Spindle driving means for textile machines
US2279537A (en) * 1941-02-11 1942-04-14 Atwood Machine Co Spinning and twisting frame
US2689448A (en) * 1952-03-03 1954-09-21 Stevens & Co Inc J P Motor drive unit for textile winding machines and the like
US3638781A (en) * 1970-01-30 1972-02-01 Movor & Coulson Ltd Conveyor belt-tensioning means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679389A (en) * 1985-02-13 1987-07-14 Zinser Textilmaschinen Gmbh Spinning or twisting machine
US5069027A (en) * 1988-08-11 1991-12-03 Fritz Stahlecker Tangential belt drive for spinning or twisting machines

Also Published As

Publication number Publication date
GB1348872A (en) 1974-03-27
CH529232A (de) 1972-10-15
AT330035B (de) 1976-06-10
BR7201061D0 (pt) 1973-06-07
FR2128557B1 (de) 1976-10-29
ATA154572A (de) 1975-08-15
HU164435B (de) 1974-02-28
IT953427B (it) 1973-08-10
FR2128557A1 (de) 1972-10-20
DE2109888A1 (de) 1972-09-14

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