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US3811261A - Systems for monitoring yarns in multicoil production textile machines - Google Patents

Systems for monitoring yarns in multicoil production textile machines Download PDF

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Publication number
US3811261A
US3811261A US00261409A US26140972A US3811261A US 3811261 A US3811261 A US 3811261A US 00261409 A US00261409 A US 00261409A US 26140972 A US26140972 A US 26140972A US 3811261 A US3811261 A US 3811261A
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US
United States
Prior art keywords
yarn
control means
coil
yarns
logic
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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
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US00261409A
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English (en)
Inventor
E Felix
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.)
Zellweger Uster AG
USTER FACTORIES
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Zellweger Uster AG
USTER FACTORIES
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Publication date
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1616—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material characterised by the detector
    • D01H13/1658—Associated actuators with mutual actuation, e.g. for two or more running yarns

Definitions

  • the present invention relates in general to textile machines, and more particularly to improvements in or relating'to circuits for monitoring yarns in multicoil production machines in the textile industry.
  • Yarn feelers are advantageously provided as so-called thermosensors. disclosed for example in U.S. Pat. application Ser. No. 97,66l of Dec. l4, l970 now US. Pat. No. 3.756.524.
  • the logic combination of thesignals produced by each of the yarn feelers controls a certain switching condition and this switching conditon is changed as soon as one of the signals drops out to produce a new combination which requires this change.
  • FIG. 1 is a schematic diagram showingtwo neighboring coils with yarn feelers under correct operating conditions
  • FIG. 2 is a schematic diagram showing two neighboring coils with yarn feelers under incorrect operating conditions.
  • FIG. 3 is a schematic diagram showing two neighboring coils with simple running yarns.
  • multifilament production machines are illustrated; however, the inventive principle can also be applied to production machines with only a single yarn per coil.
  • the three yarns ll, 12 and 13 run up to the spinning point 10 and the yarns 21, 22 and, 23 up to the neighboring spinning place 20.
  • Each of the yarns is monitored by means of at least one yarn feeler.
  • These yarn feelers are provided in such a manner that they produce a signal, for instance, as long as the yarn runs therethrough; whereas, this signal. is interrupted if no yarn is detected by the feeler.
  • one yarn monitor 14, 15 and 16'; 24, 25 and 26) is situated near the spinning point (10; 20) and further yarn monitors (l7, l8 and 19; 27, 28 and 29) immediately near the reserve coil (not shown).
  • the evaluating unit 30 gives a signal to, for example, a relay 3] which stops the spinning point 10.
  • the signals provided by both feelers associated with the broken yarn will be interrupted, which condition is recognized by the evaluating unit 30 as an indication that only spinning point 10 is to be stopped.
  • the corresponding signals at the evaluating unit 30 must, according to the invention, indicate the condition of an incorrect operation in connection with an adjacent spinning point, for example by means of the signal derived from feeler l9, and operate a further relay 32 so as to trigger the stopping of the entire machine, or as a variant, the stopping of the spinning point which is situated close to spinning point 10.
  • a further pair of electronic yarn feelers 38, 39 is placed close to the coils 42, 43. Both the contacts of the mechanical yarn feelers 34, 36 and the outputs of the electronic yarn feelers 38, 39 are connected to the evaluating circuits 44, 45 which deteet the logic combinations of signals at the output terminals and control theswitches working on the respectiveor respective or the adjacent spinning point.
  • Yarn feelers can be of any conventional construction, if they detect a yarn break and are capable of producing a stopping of the spinning point. Consequently,- both mechanical and electronic yarn feelers are useful for producing the logic combinations necessary to operation of the evaluating unit.
  • the evaluating unit should render productive all coils
  • the evaluating unit should stop the respective coil, for example by means of a switching device such as relay 31 in FIG. I;
  • the evaluating unit should generate .a signal which stops the neighboring coils or the entire machine, for instance by means of a switching device such as relay-32 in P16. 1.
  • the circuit arrangement is useful also for rovings and slivers.
  • the monitoring is effected in these cases not by means of yarn feelers,'but generally by feelers.
  • Of special interest is the monitoring of spinning frames of the ring spinning system for worsted yarns, where normally two rovings are combined on one coil and the feelers are placed directly before the drafting zone. If two rovings are present, the working conditions are normal. If both rovings are absent, this can be the fault of the roving coils, which means that no serious disturbance is present. If, however, only one roving is present, probably the serious case is present thatthe second roving is wound on a false coil; in this case a special control signal has to be produced to stop the spinning frame.
  • Circuit for monitoring yarns in a multicoil textile machine comprising at least one yarn feeler associated with each yarn providing a control signal in the absence of detection of the yarn and logiccontrol means responsive to a plurality of said controlsignals for selec-' tively controllingthe operation of said textile mechine, each coil of the machine being associatedwith a plurality of yarnsand at least two yarn feelers being associated with each yarn at spaced points along the length thereof, said logic control means including comtrol means for stopping the operation of said coils, and logic circuit means responsive to absence of control signals from both yarn feelers associated with the same yarn for actuating said control means to stop the coil associated with that yarn.
  • Circuit for monitoring yarns in a multicoil textile machine comprising at least one yarn feeler associated with eachyarn providing a control signal in the absence of detection of the yarn and logic control means responsive to a plurality of said control signals for selectively controlling the operation of said textile machine, each coil of the machine being associated with a plurality of yarns and at least two yarn feelers being associated with each yarn at spaced points along the length thereof, said logic control means including control means for stopping the operation of said coils, and logic circuit means responsive to receipt of a control signal from only one yarn feeler associated with a given yarn for actuating said control means to stop the coil associated with that yarn and at least one adjacent coil.
  • Circuit for monitoring yarns in a multicoil textile machine comprising at least one yarn feeler associated with each yarn providing a controlsignal in the absence of detection of the yarn and logic control means responsive to a plurality of said control signals for selectively controlling the operation of said textile machine, said logic control means including control, means for stopping the operation of ,said coils, and logic circuit means responsive to absence of control signals from at least two yarn feelers associated with adjacent yarns attached to the same coil for actuating said control means to stop that coil and at least one adjacent coil.
  • circuit according to claim 4 wherein said logic circuit means is responsive to absence of control signals from at least two yarn feelers associated with adjacent yarns attached to the same coil for actuating said control means to stop all of the coils of the machine.
  • Circuit for monitoring yarns in a multicoil textile machine comprising at least one yarn feeler associated with each yarn providing a control signal in the absence of detection of the yarn and logic control means responsive to a'plurality of said control signals for selec-. tively controlling the operation of said textile machine, two yarns being combined on each coil and said logic control means including control means for stopping the operation of said coils, and logic circuit means for detecting absence of a control signal from only one yarn feeler for actuating said control means to stop the associatedcoil and atleast one adjacent coil.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US00261409A 1971-06-10 1972-06-09 Systems for monitoring yarns in multicoil production textile machines Expired - Lifetime US3811261A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH843771A CH531981A (de) 1971-06-10 1971-06-10 Schaltungsanordnung zur Überwachung mehrspindliger Verarbeitungsmaschinen der Textilindustrie

Publications (1)

Publication Number Publication Date
US3811261A true US3811261A (en) 1974-05-21

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US00261409A Expired - Lifetime US3811261A (en) 1971-06-10 1972-06-09 Systems for monitoring yarns in multicoil production textile machines

Country Status (5)

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US (1) US3811261A (de)
CH (1) CH531981A (de)
DE (1) DE2220797A1 (de)
FR (1) FR2140470B1 (de)
GB (1) GB1384291A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630213A (en) * 1983-09-30 1986-12-16 E. I. Du Pont De Nemours And Company Method of reducing throughput of spinning pumps
US4919172A (en) * 1988-04-19 1990-04-24 Lindauer Dornier Gesellschaft Mbh Method and apparatus for plying a weft thread directly in an air nozzle loom
US5086542A (en) * 1990-11-30 1992-02-11 Franklin James R Electronic stop motion for textile draw frame

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3536889A1 (de) * 1985-10-16 1987-04-16 Zinser Textilmaschinen Gmbh Luntenbruchfuehler

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US27501A (en) * 1860-03-13 Halsey d
US2576936A (en) * 1949-04-12 1951-12-04 American Viscose Corp Hydraulically driven twisting apparatus
US3084499A (en) * 1962-05-16 1963-04-09 Du Pont Thread break detector
US3364670A (en) * 1966-02-24 1968-01-23 Maremont Corp Spindle control mechanism
US3523415A (en) * 1968-09-26 1970-08-11 Parks Cramer Co Apparatus for reporting ends down on textile yarn forming machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US27501A (en) * 1860-03-13 Halsey d
US2576936A (en) * 1949-04-12 1951-12-04 American Viscose Corp Hydraulically driven twisting apparatus
US3084499A (en) * 1962-05-16 1963-04-09 Du Pont Thread break detector
US3364670A (en) * 1966-02-24 1968-01-23 Maremont Corp Spindle control mechanism
US3523415A (en) * 1968-09-26 1970-08-11 Parks Cramer Co Apparatus for reporting ends down on textile yarn forming machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630213A (en) * 1983-09-30 1986-12-16 E. I. Du Pont De Nemours And Company Method of reducing throughput of spinning pumps
US4919172A (en) * 1988-04-19 1990-04-24 Lindauer Dornier Gesellschaft Mbh Method and apparatus for plying a weft thread directly in an air nozzle loom
US5086542A (en) * 1990-11-30 1992-02-11 Franklin James R Electronic stop motion for textile draw frame

Also Published As

Publication number Publication date
GB1384291A (en) 1975-02-19
FR2140470A1 (de) 1973-01-19
DE2220797A1 (de) 1972-12-21
CH531981A (de) 1972-12-31
FR2140470B1 (de) 1977-12-23

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