US3680299A - Textile yarn production control apparatus and method - Google Patents

Textile yarn production control apparatus and method Download PDF

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Publication number
US3680299A
US3680299A US62370A US3680299DA US3680299A US 3680299 A US3680299 A US 3680299A US 62370 A US62370 A US 62370A US 3680299D A US3680299D A US 3680299DA US 3680299 A US3680299 A US 3680299A
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traversed
machine
traversed machine
textile yarn
yarn
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US62370A
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English (en)
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Charles D Lee Jr
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Parks Cramer Co
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Parks Cramer Co
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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
    • D01H13/32—Counting, measuring, recording or registering devices

Definitions

  • the aforementioned related inventions are concerned with improving the efficiency of operation in certain textile strand producing operations by the provision of apparatus for detecting the ends down condition of textile yarn or thread forming apparatus such as spinning and twisting machines.
  • apparatus is provided within a textile room, such as a spinning room, for moving detector means along the textile apparatus in a predetermined manner, for registering the response of the detector means, and for communicating and processing data concerning ends down on the textile yarn forming machines.
  • a further object of the present invention is the establishment of communication from a central data processing facility back to the mill room apparatus from which ends down data originated, so that signals indicative of a comparison of determined and standard conditions may be directed to those machines which are to perform an indicated function in effecting variations in the production of textile yarn.
  • signals identified to particular machines are encoded and transmitted following the comparison of determined ends down conditions with predetermined standard conditions. Such transmitted signals are received, processed to decipher the identification thereof with the particular machine and the comparative relation of determined and standard conditions, and are then applied to effect variation in the production of textile yarn.
  • variation in the production of textile yarn eflectedin response to the accumulation and processing of data is distinct and different from prior art arrangements in which efiorts toward optimization of yarn production have been made by controlling the speed of a spinning machine in response to yarn package formation, and particularly to the builder motion, or by other systems not making use of a central data processing facility to serve a number of machines.
  • Builder motion responsive speed controls have heretofore been adopted in Europe, while United States practice has employed a constant speed drive.
  • spinning machine speed variation by builder motion controls is intended to avoid excessive yarn breakage during certain intervals of time during the formation of yarn packages, but fails to take into consideration the end down operating condition of the frame being controlled.
  • FIG. I is a diagrammatic view, partially schematic, of apparatus in accordance with the present-invention
  • FIG. 2 is a schematic circuit diagram of a word generator as used in the apparatus of FIG. 1;
  • FIG. 3 is an elevation view of a textile yarn forming machine included in the apparatus illustrated in FIG. 1, and having a schematic diagram of additional elements of the apparatus in accordance with the present invention.
  • FIG. 4 is an illustration, partly schematic and partly in perspective, of elements of the apparatus shown in FIG. 3.
  • data concerning ends down conditions of monitored textile yarn forming machines is presented to a receiver 20 in the form of binary word signals encoded by means moving with the traveling unit which monitors ends of yarn (such as the traveling pneumatic cleaner 10 of FIG. 3 having detector means moving therewith).
  • Binary word signals appearing at the receiver 20 are passed to a word convertor 21 in order to be deciphered for processing of data.
  • the frame identification means 22 establishes, from the signals appearing at the word convertor 21, the particular one of the textile yarn forming machines to which data then being processed is identified.
  • the comparator 24 functions as a means for comparing a determined ends down condition of the traversed machine, as signaled by a traveling unit monitoring ends of yarn thereon and as transmitted and processed through the other elements of the apparatus, with a predetermined standard condition.
  • the predetermined standard condition is established by a standard signaling means 25 which also directs a signal to the comparator 24.
  • the standard signaling means 25 is programmed in accordance with a desired characteristic of operation for a traversed machine, such as a predetermined profile of conditions acceptable during incremental periods of time or the characteristics of the yarn being produced on the traversed machine. As certain bases of such programs are fully disclosed hereinafter, possibilities for other programs will become more clear to persons skilled in the operation of textile yarn forming machines.
  • the operating conditions thereof will vary with a wide number of factors, including the particular build used on bobbins mounted on the spindles of the machine.
  • the interval of time immediately following start up of a spinning frame, when the early wound layers of a bobbin build are being formed is a hard spin period.
  • the term hard spin refers to the fact that ends down per thousand spindle hours are substantially higher during this period than during the period when the main body of yarn is being wound about the bobbin, which is referred to as an easy spin period by way of contrast.
  • Another hard spin period typically occurs immediately prior to the doffing of filled bobbins from the spinning frame, while the last few layers of yarn are being applied thereto.
  • the standard signaling means 25 may be programmed in relation to the builder motion of a textile machine or to running time from the end of a doff period, to take into consideration the relative number of ends down which may occur on a traversed machine during such periods, Thus, if operation of a spinning frame is considered economically feasible with only relatively few ends down during a hard spin period and with a higher number of ends down during an easy spin period, the standard signaling means 25 is programmed in accordance with such a predetermined profile of conditions. The present invention contemplates that such a profile may vary in other ways, being directed to maintaining ends down at Ya generally uniform rate through both hardf and easy spin periods or in any desired ratios.
  • breakage of a drive tape would be indicated by the presence of four or more ends down, distributed evenly on both sides of a spinning frame in a pattern corresponding to the spindles otherwise driven by the tape.
  • the presence of a lap-up about a roll in the drafting system would be indicated by a pair of adjacent ends being down in a pattern corresponding to a common roll weighting system.
  • a speed signal to slow down the frame would be deferred and operation at normal or accelerated speeds would continue.
  • signals from the frame identification means 22 and the comparator 24 are delivered to a word generator 26 (diagrammed in FIG. 2) for encoding of a signal identified t0v a particular machine and correlated with the comparison of determined and standard conditions.
  • a word generator 26 (diagrammed in FIG. 2) for encoding of a signal identified t0v a particular machine and correlated with the comparison of determined and standard conditions.
  • flops are serially shifted therefrom through a plurality of and gates 43, 44, 45, 46 in response to shift signals from an oscillator 48 and a counter 49.
  • the oscillator 48 and counter 49 the data bit signals present in parallel in the I-K flipflops 35, 26, 37, 38 are arranged in series with a plurality of clock pulse signals passing through a clock signal train including an arrangement of three or gates 51, 52, 53.
  • Clock and data bit signals thus arranged in series by operation of the oscillator 48 and counter 49 are applied to the key up and key down inputs of a frequency modulated transmitter 28 coupled to trolley bar conductors (one of which is shown in FIG. 3 as conductor 55) which extend adjacent the traversed textile machine and along a trackway 56 which supports the traveling unit for traversal of the textile yarn forming machines.
  • the means for effecting variation in the production of textile'yarn by traversed machine in accordance with a transmitted, encoded signal desirably comprises means for cooperating with a main drive electrical motor 58 for the traversed machine.
  • main drive electrical motors are alternating current motors, and the rate of production of textile yarn by a spinning frame may be varied by modulating at least one characteristic of electrical current delivered thereto, so that the rotational speed of the motor is thereby varied.
  • transmitted signals appearing on the trolley bar conductors passing over the traversed machine are applied to a receiver 59, encoded words passing through the receiver are converted by a word convertor 60 and signals indicating the comparative relation of the determined and standard conditions are applied for varying the rotational speed of the main drive alternating current electrical motor 58.
  • that data bit signal included in an encoded word which is correlated to the comparative relation of the determined and standard conditions may be either an upshift signal or a downshift signal.
  • the up and down shift signals are separated and separately applied to actuating solenoid devices 61, 62.
  • Each of the actuating solenoid devices is operatively connected to a corresponding pawl 64, 65 which engages a corresponding ratchet wheel 66, 67.
  • Each of the pawls 64, 65 is provided with a cross lifting bar 68, 69 which extends under the other of the pawls.
  • an upshift solenoid such as thesolenoid 61
  • the corresponding pawl 64 is drawn toward the solenoid 61 (to the left in FIG. 4) so that the lifting bar 68 raises the other pawl 65 and the engagement of the pawl 64 with the ratchet wheel 66 rotates a coupled shaft 70.
  • the shaft 70 is operatively connected with a movable contact 71 of a variable resistor generally indicated at 72.
  • the variable resistor 72 is included in an alternating current power modulating circuit, here represented as including a Triac 74, Diac 75 and timing capacitor 76.
  • alternating current power modulating circuit here represented as including a Triac 74, Diac 75 and timing capacitor 76.
  • signals indicating the comparative relation of determined and standard conditions may be reported to and accumulated in an appropriate memory or other data storage means.
  • the speed control means incorporate some means for indicating the relative speed at which the main drive motor 58 is being operated.
  • such means is provided in the form of an incandescent lamp 78 electrically connected in parallel with the drive motor 58 and in series with the Triac 74.
  • the relative brilliance of the incandescent lamp 78 also fluctuates.
  • a supervisor wishing a quick approximation as to the relative operating speeds of a plurality of spinning frames so equipped need only compare the relative brilliance of the lamps thus associated with each of the plurality of frames.
  • transmission and reception may be effected through a variety of other techniques.
  • transmission and reception may be by emission of radio frequency, by coupling of signals to a conductor used solely as a signal conductor, or by modulation of lamps or the like positioned in spaced relation to other elements of the system.
  • reception would be by a tuned radio receiver, by coupling to the signal conductors or by photosensors.
  • Such transmission and reception may also be directly to the yarn forming machine, as hereinabove disclosed, or may be indirectly through a receiver mounted on and moving with one of the traveling units.
  • Variable speed drive through means of a thyristor control is preferred in accordance with the present invention, but it is contemplated that such control may also be accomplished through controlled slippage clutches or mechanically variable transmission devices interposed between a constant speed motor and the operating elements of a yarn forming machine.
  • said comparing, encoding and transmitting means includes means for generating and emitting a binary word signal identified to said traversed machine.
  • said means for generating and emitting a binary word signal comprises means for generating aplurality of data bit signals and means for serially arranging said plurality of data bit signals into a single, multiple bit, word.
  • said comparing, encoding and transmitting means includes means for generating and emitting frequency modulated electrical energy at a frequency identified to said traversed machine
  • said comparing, encoding and transmitting means includes means programmed in, accordance with a predetermined profile of conditions acceptable during incremental periods of time from start-up of a traversed machine to doffing of filled bobbins therefrom.
  • said system further has a trolley conductor extending adjacent one or more of said machines for movement of a traveling unit therealong and wherein said comparing, encoding and transmitting means comprises means for generating a radio frequency carrier, means for frequency modulating the radio frequency carrier and means coupling a resultant frequency modulated signal onto said trolley conductor.
  • said yarn forming machines each comprise a main drive alternating current electrical motor and wherein said receiving, deciphering and rate varying means comprises means for modulating at least one characteristic of electrical current delivered to said motor and thereby for varying the rotational speed thereof.
  • a method of optimizing the rates of production of textile yarn forming machines wherein ends of yarn normally formed on one or more of the machines are monitored and reports are made to a data processing system which determines the ends down conditions of traversed machines, the method comprising the steps of comparing a determined ends down condition of a traversed machine with a predetermined standard condition correlated to optimum yarn production by the traversed machine,
  • a method according to claim 12 wherein the step of comparing determined and standard conditions includes weighting the comparison in accordance with a predetermined profile of conditions acceptable during incremental periods of time from start-up of a traversed machine to doffing of filled bobbins therefrom.
  • a method according to claim 12 wherein the step of comparing determined and standard conditions includes weighting the comparison in accordance with the characteristics of the yarn being produced.
  • step of encoding and transmitting a control signal comprises generating and emitting frequency modulated electrical energy at a frequency identified to the traversed machine.
  • step of transmitting a control signal comprises coupling frequency modulated electrical energy to a trolley conductor along which a traveling detector unit moves in monitoring the traversed machine.
  • step of encoding and transmitting a speed control signal comprises generating and emitting a binary word signal identified to the traversed machine.
  • step of generating a binary word signal comprises serially arranging a plurality of data bit signals into a single, multiple bit, word.
  • step of effecting the production of textile yarn comprises modulating at least one characteristic of alternating electrical current delivered to a main drive motor for the traversed machine to thereby govern the rotational speed thereof.
  • a method according to claim 12 further comprising the step of accumulating control signal data over an extended period of time for analysis to aid in determining the relative efficiency of the textile yarn forming machines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US62370A 1970-08-10 1970-08-10 Textile yarn production control apparatus and method Expired - Lifetime US3680299A (en)

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US6237070A 1970-08-10 1970-08-10

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US (1) US3680299A (de)
JP (1) JPS52149B1 (de)
CH (1) CH558431A (de)
DE (1) DE2140067B2 (de)
FR (1) FR2102169B1 (de)
GB (1) GB1359494A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789595A (en) * 1971-12-20 1974-02-05 Leesona Corp Automatic control system for correcting textile machinery malfunctions from sensed and stored malfunction data
US3877210A (en) * 1972-09-15 1975-04-15 Elitex Zavody Textilniho System for measuring the count and twist of spun yarn in open-end spinning
US3877209A (en) * 1972-09-15 1975-04-15 Elitex Zavody Textilniho System for measuring the draft of open-end spinning machines
US3878671A (en) * 1972-09-15 1975-04-22 Elitex Zavody Textilniho System for measuring the twist of spun yarn in open-end spinning
US3885232A (en) * 1972-03-24 1975-05-20 Asahi Chemical Ind Apparatus for the treatment of yarn thickness variation signals
US3945181A (en) * 1973-08-11 1976-03-23 Toray Industries, Inc. Process and apparatus for measuring uniformity of physical properties of yarn
US3995417A (en) * 1974-07-15 1976-12-07 Palitex Project-Company G.M.B.H. Process and apparatus for counting yarn breakages
US4019310A (en) * 1975-04-15 1977-04-26 Elitex, Koncern Textilniho Strojirenstvi Apparatus for digitally monitoring operating parameters of an open-end spinning machine
US4030082A (en) * 1972-03-24 1977-06-14 Asahi Kasei Kogyo Kabushiki Kaisha Apparatus for the treatment of yarn thickness variation signals
US4043107A (en) * 1973-07-06 1977-08-23 Leuze-Electronic Kg Arrangement for automatically controlling the travel speed of yarns, filaments, and the like in machines processing the same
US4047371A (en) * 1975-12-13 1977-09-13 Hans Stahlecker Spinning machine facility with a plurality of open end spinning machines and at least one servicing instrument
US4137699A (en) * 1977-03-31 1979-02-06 Hans Stahlecker Textile machine with devices for determination of the transverse dimension of running yarn
US4194349A (en) * 1978-04-26 1980-03-25 Parks-Cramer Company Apparatus and method for gathering and displaying information
US4475331A (en) * 1981-06-12 1984-10-09 Schubert & Salzer, A.G. Spinning machine, especially an open-end spinning machine, with a plurality of spinning units and with a maintenance device movable along the machine

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS210059B1 (en) * 1978-12-29 1982-01-29 Karel Mikulecky Device for the control,adjustment and regulation of the working place e.g.textile production unit or machine with the said units
DE3624212A1 (de) * 1986-07-16 1988-01-28 Tsnii Promy Lubyanykh Volokon Verfahren und anordnung zur steuerung einer spinnmaschine
JPH0720800B2 (ja) * 1988-03-01 1995-03-08 村田機械株式会社 紡績工場における品質管理システム
DE3840095A1 (de) * 1988-11-28 1990-05-31 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum uebermitteln unterschiedlicher arbeitsbefehle an mindestens einen entlang einer spinnereimaschine verfahrbaren bedienlaeufer
DE3928755A1 (de) * 1989-08-30 1991-03-07 Rieter Ag Maschf Verfahren zur regelung der arbeitsgeschwindigkeit einer ringspinnmaschine
DE4402582C2 (de) * 1994-01-28 1997-12-04 Zinser Textilmaschinen Gmbh Verfahren und Vorrichtung zur Optimierung der Spinngeometrie einer Ringspinnmaschine
DE102011112364A1 (de) 2011-09-02 2013-03-07 Oerlikon Textile Gmbh & Co. Kg Offenend-Rotorspinnmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3403866A (en) * 1966-03-14 1968-10-01 Leesona Corp Textile machine
US3445997A (en) * 1961-06-14 1969-05-27 Roberto Escursell Prat Automatic thread joiner and continuous spinning machines
US3486319A (en) * 1968-06-24 1969-12-30 Parks Cramer Co Apparatus and method for detecting,piecing-up and reporting ends down on spinning machines
US3498039A (en) * 1968-07-29 1970-03-03 Leesona Corp Control system
US3523413A (en) * 1968-02-19 1970-08-11 Parks Cramer Co Apparatus and method for detecting and reporting ends down on textile machines
US3623310A (en) * 1970-05-25 1971-11-30 Parks Cramer Co Electrostatic charge sensitive ends down detecting apparatus and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160223B (de) * 1959-11-07 1963-12-27 Bayer Ag Vorrichtung zur kontinuierlichen photoelektrischen UEberwachung laufender Fadenscharen
BE676645A (de) * 1966-02-17 1966-07-18
FR1515876A (fr) * 1966-07-18 1968-03-08 Louis Lepoutre & Cie S A Dispositif d'asservissement de la vitesse de machines textiles au taux de casse des fils

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445997A (en) * 1961-06-14 1969-05-27 Roberto Escursell Prat Automatic thread joiner and continuous spinning machines
US3373551A (en) * 1965-05-08 1968-03-19 Gillono Matteo Automatic apparatus for binding broken yarns on spinning machines
US3403866A (en) * 1966-03-14 1968-10-01 Leesona Corp Textile machine
US3523413A (en) * 1968-02-19 1970-08-11 Parks Cramer Co Apparatus and method for detecting and reporting ends down on textile machines
US3486319A (en) * 1968-06-24 1969-12-30 Parks Cramer Co Apparatus and method for detecting,piecing-up and reporting ends down on spinning machines
US3498039A (en) * 1968-07-29 1970-03-03 Leesona Corp Control system
US3623310A (en) * 1970-05-25 1971-11-30 Parks Cramer Co Electrostatic charge sensitive ends down detecting apparatus and method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789595A (en) * 1971-12-20 1974-02-05 Leesona Corp Automatic control system for correcting textile machinery malfunctions from sensed and stored malfunction data
US4030082A (en) * 1972-03-24 1977-06-14 Asahi Kasei Kogyo Kabushiki Kaisha Apparatus for the treatment of yarn thickness variation signals
US3885232A (en) * 1972-03-24 1975-05-20 Asahi Chemical Ind Apparatus for the treatment of yarn thickness variation signals
US3877210A (en) * 1972-09-15 1975-04-15 Elitex Zavody Textilniho System for measuring the count and twist of spun yarn in open-end spinning
US3877209A (en) * 1972-09-15 1975-04-15 Elitex Zavody Textilniho System for measuring the draft of open-end spinning machines
US3878671A (en) * 1972-09-15 1975-04-22 Elitex Zavody Textilniho System for measuring the twist of spun yarn in open-end spinning
US4043107A (en) * 1973-07-06 1977-08-23 Leuze-Electronic Kg Arrangement for automatically controlling the travel speed of yarns, filaments, and the like in machines processing the same
US3945181A (en) * 1973-08-11 1976-03-23 Toray Industries, Inc. Process and apparatus for measuring uniformity of physical properties of yarn
US3995417A (en) * 1974-07-15 1976-12-07 Palitex Project-Company G.M.B.H. Process and apparatus for counting yarn breakages
US4019310A (en) * 1975-04-15 1977-04-26 Elitex, Koncern Textilniho Strojirenstvi Apparatus for digitally monitoring operating parameters of an open-end spinning machine
US4047371A (en) * 1975-12-13 1977-09-13 Hans Stahlecker Spinning machine facility with a plurality of open end spinning machines and at least one servicing instrument
US4137699A (en) * 1977-03-31 1979-02-06 Hans Stahlecker Textile machine with devices for determination of the transverse dimension of running yarn
US4194349A (en) * 1978-04-26 1980-03-25 Parks-Cramer Company Apparatus and method for gathering and displaying information
US4475331A (en) * 1981-06-12 1984-10-09 Schubert & Salzer, A.G. Spinning machine, especially an open-end spinning machine, with a plurality of spinning units and with a maintenance device movable along the machine

Also Published As

Publication number Publication date
CH558431A (de) 1975-01-31
DE2140067A1 (de) 1972-02-17
JPS52149B1 (de) 1977-01-05
DE2140067B2 (de) 1976-08-05
GB1359494A (en) 1974-07-10
FR2102169A1 (de) 1972-04-07
FR2102169B1 (de) 1976-04-02

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