EP0282745A1 - Verfahren und Vorrichtung zur Produktions- und Qualitätsüberwachung der Produktionsstellen an mehrspindligen Textilmaschinen - Google Patents

Verfahren und Vorrichtung zur Produktions- und Qualitätsüberwachung der Produktionsstellen an mehrspindligen Textilmaschinen Download PDF

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Publication number
EP0282745A1
EP0282745A1 EP88102184A EP88102184A EP0282745A1 EP 0282745 A1 EP0282745 A1 EP 0282745A1 EP 88102184 A EP88102184 A EP 88102184A EP 88102184 A EP88102184 A EP 88102184A EP 0282745 A1 EP0282745 A1 EP 0282745A1
Authority
EP
European Patent Office
Prior art keywords
production
transmitter
thread
receiver
production sites
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.)
Withdrawn
Application number
EP88102184A
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German (de)
English (en)
French (fr)
Inventor
Ernst 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
Original Assignee
Zellweger Uster AG
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 Zellweger Uster AG filed Critical Zellweger Uster AG
Publication of EP0282745A1 publication Critical patent/EP0282745A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
    • B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
    • B65H63/0324—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators using photo-electric sensing means, i.e. the defect signal is a variation of light energy
    • 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
    • D01H13/1633—Electronic actuators
    • D01H13/165—Photo-electric sensing means
    • 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
    • D01H13/26—Arrangements facilitating the inspection or testing of yarns or the like in connection with spinning or twisting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • 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

  • the invention is now to provide a method which enables production and quality monitoring of the production sites on multi-spindle textile machines at a reasonable cost.
  • the invention relates to a method for production and quality monitoring of the production sites on multi-spindle textile machines, the production sites being arranged in rows and that of each product tional running thread executes a transverse movement in the manner of a balloon and thereby envelops a rotationally symmetrical body referred to below as a spatial element.
  • the method according to the invention is characterized in that a common monitoring device is provided for at least two production sites, which has a radiation beam, that the radiation beam is guided through the spatial elements at the at least two production locations and is intermittently interrupted or weakened in each spatial element by the moving thread and that the resulting shading is converted into an electrical signal in a receiver and used as a basis for further evaluation.
  • the basic idea of the invention is therefore to monitor several production sites with a common monitoring device, whereby the costs per production site are reduced accordingly.
  • One bundle of rays is thus guided through several thread balloons, the cross-section of the thread bundle preferably being selected to be small in relation to the balloon diameter.
  • each thread now crosses the bundle of rays twice per revolution. There is a high probability that there is only one thread in the beam at any given time. The smaller the number of production sites, the greater the probability.
  • the invention further relates to a device for performing the above-mentioned method with a monitoring device.
  • the device according to the invention is characterized in that at least two production sites are assigned a common monitoring device, which has a transmitter for a radiation beam and a receiver for the latter and is arranged such that the radiation beam penetrates the spatial elements at the at least two production sites, and that means for Evaluation of the intensity fluctuations of the radiation beam occurring at the receiver are provided.
  • 1a and 1b schematically show four production stations 21, 22, 23 and 24, which are spindles of a ring spinning machine.
  • 10 the ring bench
  • 11 the ring
  • 12 a thread guide (the so-called "Sauschwänzchen")
  • 16 the so-called "Sauschwänzchen”
  • a thread 1, 2, 3, 4 runs from the thread guide 12 to the ring 11 and thereby forms a thread balloon 13 in which it occupies a current position 31, 32, 33 and 34, respectively.
  • the four production sites 21 to 24 arranged in rows are assigned a common monitoring device, which has a transmitter 5 for a light beam 7 and a receiver 6 for this.
  • the bundle of rays 7 is guided through the center of the balloons 13 and is thus continuously traversed by the threads 1 to 4 as they rotate, namely twice per revolution. A corresponding shading occurs with each crossing at the receiver 6.
  • the rotation speed of all the balloons on the same machine is approximately the same, but is not synchronous.
  • the time for one revolution is thus at least approximately known. If, as in the example shown, with a monitoring device for four production sites, shading has occurred eight times (2 times 4) for one revolution, all the threads are still intact.
  • FIG. 2 shows a corresponding pulse diagram in which the time t is plotted on the abscissa and the shading A, which results from the threads 1, 2, 3, 4 in the beam, is plotted on the ordinate.
  • Each shading by one of the threads 1 to 4 is symbolized by a corresponding shading pulse A1 to A4, A1 ⁇ to A4 ⁇ .
  • the pulse train is purely random, but is always offset by a half-cycle of 180 °.
  • the guidance of the beam 7 through the center of the balloons 13 is only one example.
  • the beam of rays can, for example, also be displaced in parallel or be guided obliquely according to FIGS. 3a, 3b, wherein it includes an angle a with the horizontal H and an angle b with the connecting line K of the axes of the production sites 21, 22, 23, 24.
  • a plurality of beams can also be formed by a single light transmitter 5 and a plurality of light-sensitive receivers 6, 6 ⁇ (FIG. 5), or a plurality of light transmitters 5 and a single light-sensitive receiver 6.
  • the following explanations are limited to just a few examples.
  • the diameter of the thread can be inferred from the time course and the intensity of the shading pulse.
  • the task is only partially solved when a thread break is detected within a production group.
  • the second part of the task is to identify the position of the production points 21, 22, 23, 24 where the thread breakage has occurred, i.e. the identification of the production site.
  • FIG. 3a This object can be achieved, for example, with an arrangement according to FIG. 3a.
  • the beam 7 no longer traverses the thread balloons through their center, but at different distances from the center.
  • FIG. 1 in which a possible thread break is determined after exactly half a rotation period, differences can be found in this example.
  • the pulse spacing corresponds to an angle c or d.
  • FIG. 4 shows how the different which angles present in the pulse diagram. For the sake of clarity, the angle d is not entered; it represents the addition of the angle c to 360 °.
  • FIG. 6 shows the corresponding pulse diagrams of the shadows in the two beams 7, 8.
  • FIG. 5 In order to make the determination of the belonging of the individual shading impulses to the relevant spindles even clearer and simpler, the arrangement of FIG. 5 can be modified according to FIG. 7.
  • a further transmitter 25 is arranged between the two receivers 6, 6 Fig (FIG. 5) and a further receiver 26, 26 ⁇ on each side of the transmitter 5.
  • the balloons are traversed by two pairs of beams 7, 8 and 7 ⁇ , 8 ⁇ .
  • the evaluation of the shading pulses to the receiver 6, 6, and 26, 26 Auselle is carried out for each pair of receivers in the manner described with reference to FIGS. 5 and 6, the signals of the two pairs of receivers being related to one another. This makes the assignment of the shading impulses to the individual spindles clearer and more reliable, but on the other hand the effort is also greater.
  • FIG. 8 shows a possible position of two beams 7, 8 next to the spindles 16.
  • Fig. 10 shows the arrangement of Fig. 9 in even greater detail.
  • 17 denotes a radiation emitter, for example a luminescent diode
  • the arrow 18 denotes the direction of the beams 7, 8.
  • Such beams are generally wide-ranging (with the exception of laser beams).
  • the rays thus also strike the receiving elements 19 and 20. These can be commercially available photodiodes.
  • the beam 7 now arises between the transmitter 17 and the receiving element 19, the beam 8 between the transmitter 17 and the receiving element 20.
  • electrical pulses are generated, as shown in FIGS. 2, 4 and 6.
  • the time shift enables the identification of the production site, while the size of the shading corresponds to the diameter of the thread.
  • the shading represents a voltage or a current pulse that is easy to measure.
  • the time difference between the pulses is pure time measurements that can be determined very precisely with simple means. Voltage or current can easily be converted into binary signals, and together with the time measurement, ideal conditions for electronic data processing arise; microprocessors are particularly suitable.
  • FIGS. 1a, 3a, 3b, 5, 7 and 9 they are only schematically entered as a straight line with a punctiform cross section.
  • the cross-section of the beams 7, 8 is determined on the one hand by the luminous surface of the transmitter 17 and on the other hand by the surface of the receiving elements 19 and 20. If these areas are approximately the same size, the impulses of the individual production sites are independent of their position, which simplifies the evaluation.
  • FIG. 12a shows a pulse as it is generated in principle by the production site 21 from FIG. 11, and FIG. 12b shows a corresponding pulse from the production site 24 (FIG. 11).
  • the number of production sites can further be limited by problems with the optics, since the light intensity decreases with the square of the distance from the receiver to the transmitter. Disturbing light and noise can cover up the useful signal. A considerable improvement is possible if the light is modulated in a known manner. External influences can thus be eliminated.
  • the previous statements have been limited to the detection of thread breaks.
  • the size of the shading is also a measure of the diameter of the thread in the relevant beam. Even if the transmitter and receiver areas are of the same size, the intensity of shading is not only dependent on the diameter, but also on the position of the thread between the transmitter and receiver. This is illustrated with reference to FIG. 13.
  • the transmitter 17 sends its light to the receiver 19 and the thread 1 is located directly at the receiver 19 (FIG. 13b). In this case the shading is almost equal to the diameter of the thread 1.
  • FIG. 13 a the thread 1 is drawn approximately in the middle between the receiver 19 and the transmitter 17. It is quite obvious that the shadowing in this case is greater (almost double). This property can be used to identify the production site of the thread in question if it can be assumed that the thread diameter is sufficiently constant (or an average of several passes is formed).
  • a given position corresponds to a precisely defined shading for a given diameter. If the thread diameter changes as a result of irregularities, the size of the shading also changes. Since the thread also runs through the balloon in the longitudinal direction, a different point in the thread is always scanned.
  • the known quality parameters such as the coefficient of variation of the non-uniformity, the spectrogram, etc. can be calculated from a sufficient number of sampling points. A seamless pulse train is not necessary. Interruptions are permitted because there is enough material and time for an "on-line" measurement.
  • the size of the shading is included in the evaluation, it is not only inexpensive to produce a thread break detection, but also to achieve comprehensive quality monitoring of each individual production site.
  • FIG. 14 shows yet another possibility for the position of the bundle of rays through the balloons, in that the beam 7 is thrown back from the transmitter 5 onto a mirror 9 and from there as a reflected beam 7 ⁇ onto a receiver 6.
  • Pulse sequences similar to those in the example according to FIG. 5 arise. However, only one transmitter and one receiver are necessary here. However, the length of the beam 7 is twice as long.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
EP88102184A 1987-03-19 1988-02-15 Verfahren und Vorrichtung zur Produktions- und Qualitätsüberwachung der Produktionsstellen an mehrspindligen Textilmaschinen Withdrawn EP0282745A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1042/87 1987-03-19
CH1042/87A CH671972A5 (en。) 1987-03-19 1987-03-19

Publications (1)

Publication Number Publication Date
EP0282745A1 true EP0282745A1 (de) 1988-09-21

Family

ID=4201104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102184A Withdrawn EP0282745A1 (de) 1987-03-19 1988-02-15 Verfahren und Vorrichtung zur Produktions- und Qualitätsüberwachung der Produktionsstellen an mehrspindligen Textilmaschinen

Country Status (6)

Country Link
US (1) US4888944A (en。)
EP (1) EP0282745A1 (en。)
JP (1) JPS63256732A (en。)
CH (1) CH671972A5 (en。)
DD (1) DD268006A5 (en。)
IN (1) IN170813B (en。)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505317A1 (de) * 1991-03-19 1992-09-23 Gebrüder Sulzer Aktiengesellschaft Fadenführungsvorrichtung an einer Webmaschine mit ortsfester Schussfaden-Vorratsspule
DE102015005328A1 (de) 2015-04-27 2016-10-27 Saurer Germany Gmbh & Co. Kg Vorrichtung und Verfahren zum Ermitteln des Durchmessers eines durch einen laufenden Faden gebildeten Fadenballons an einer Arbeitsstelle einer Textilmaschine
DE102016001164A1 (de) 2016-02-02 2017-08-03 Saurer Germany Gmbh & Co. Kg Verfahren und Vorrichtung zum Betreiben einer Arbeitsstelle einer fadenballonbildenden Textilmaschine
DE102016001099A1 (de) 2016-02-02 2017-08-03 Saurer Germany Gmbh & Co. Kg Vorrichtung und Verfahren zum Ermitteln des Durchmessers eines durch einen laufenden Faden gebildeten Fadenballons an einer Arbeitsstelle einer fadenballonbildenden Textilmaschine

Families Citing this family (6)

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Publication number Priority date Publication date Assignee Title
US5270951A (en) * 1990-05-22 1993-12-14 Barmag Ag Method and apparatus for storing error signals
CA2109668C (en) * 1993-11-22 1998-02-24 Frederick H.G. Simmons Automatic control of armour tape tension
DE10003861A1 (de) 2000-01-28 2001-08-02 Truetzschler Gmbh & Co Kg Vorrichtung zur Erfassung der Bewegung und/oder des Vorhandenseins eines Textilfaserbandes aus Baumwolle und/oder Chemiefaser, insbesondere an einer Srecke
CA2899102C (en) 2004-06-29 2017-08-01 Instrumar Limited Fibre monitoring apparatus and method
US7983785B2 (en) 2004-06-30 2011-07-19 Instrumar Limited Fibre monitoring apparatus and method
CN103415455B (zh) * 2011-03-16 2016-11-16 乌斯特技术股份公司 表征伸长织物测试材料的设备和方法

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GB1283528A (en) * 1968-12-18 1972-07-26 Crabtree Engineering Group Col An improved method and apparatus for detecting yarns
DE2134527A1 (de) * 1971-07-10 1973-01-25 Hoechst Ag Photoelektrische vorrichtung zur ueberwachung einer vielzahl changierender faeden auf bruch
DE2516980A1 (de) * 1975-04-17 1976-10-28 Jacobi E & Co Kg Photoelektrischer detektor zum erfassen eines lunten- bzw. garnbruchs

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CH601093A5 (en。) * 1976-11-05 1978-06-30 Zellweger Uster Ag
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US4160360A (en) * 1978-07-27 1979-07-10 Owens-Corning Fiberglas Corporation Optical strand sensor for detecting a filament being wound and twisted on a spool
CH635299A5 (de) * 1979-03-26 1983-03-31 Mayer Stephan Verfahren und vorrichtung zum messen der laenge eines von einem spinnkops oder von einer in wilder wicklung bewickelten garnspule ueber kopf abgezogenen fadens.
JPS5940926B2 (ja) * 1980-06-26 1984-10-03 村田機械株式会社 糸状物体のバル−ン評価方法
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CH655917A5 (de) * 1982-03-11 1986-05-30 Loepfe Ag Geb Elektronische abfrageschaltung zur ueberwachung einer vielzahl von fadenlaufstellen an einer textilmaschine.

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
GB1283528A (en) * 1968-12-18 1972-07-26 Crabtree Engineering Group Col An improved method and apparatus for detecting yarns
DE2134527A1 (de) * 1971-07-10 1973-01-25 Hoechst Ag Photoelektrische vorrichtung zur ueberwachung einer vielzahl changierender faeden auf bruch
DE2516980A1 (de) * 1975-04-17 1976-10-28 Jacobi E & Co Kg Photoelektrischer detektor zum erfassen eines lunten- bzw. garnbruchs

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505317A1 (de) * 1991-03-19 1992-09-23 Gebrüder Sulzer Aktiengesellschaft Fadenführungsvorrichtung an einer Webmaschine mit ortsfester Schussfaden-Vorratsspule
US5201346A (en) * 1991-03-19 1993-04-13 Sulzer Brothers Limited Thread feeding guide arrangement to a weft accumulator tube
DE102015005328A1 (de) 2015-04-27 2016-10-27 Saurer Germany Gmbh & Co. Kg Vorrichtung und Verfahren zum Ermitteln des Durchmessers eines durch einen laufenden Faden gebildeten Fadenballons an einer Arbeitsstelle einer Textilmaschine
EP3088577A1 (de) 2015-04-27 2016-11-02 Saurer Germany GmbH & Co. KG Vorrichtung und verfahren zum ermitteln des durchmessers eines durch einen laufenden faden gebildeten fadenballons an einer arbeitsstelle einer textilmaschine
US10000867B2 (en) 2015-04-27 2018-06-19 Saurer Germany Gmbh & Co. Kg Device and method for determining the diameter of a yarn balloon formed by a running yarn at a workstation of a textile machine
DE102016001164A1 (de) 2016-02-02 2017-08-03 Saurer Germany Gmbh & Co. Kg Verfahren und Vorrichtung zum Betreiben einer Arbeitsstelle einer fadenballonbildenden Textilmaschine
DE102016001099A1 (de) 2016-02-02 2017-08-03 Saurer Germany Gmbh & Co. Kg Vorrichtung und Verfahren zum Ermitteln des Durchmessers eines durch einen laufenden Faden gebildeten Fadenballons an einer Arbeitsstelle einer fadenballonbildenden Textilmaschine
EP3202964A1 (de) 2016-02-02 2017-08-09 Saurer Germany GmbH & Co. KG Verfahren und vorrichtung zum betreiben einer arbeitsstelle einer fadenballonbildenden textilmaschine
KR20170092123A (ko) * 2016-02-02 2017-08-10 자우러 저머니 게엠베하 운트 코. 카게 섬유 기계를 형성하는 얀 발룬의 워크스테이션에서 연속 쓰레드에 의해 형성된 얀 발룬의 직경을 측정하는 장치 및 방법
EP3208370A1 (de) 2016-02-02 2017-08-23 Saurer Germany GmbH & Co. KG Vorrichtung und verfahren zum ermitteln des durchmessers eines durch einen laufenden faden gebildeten fadenballons an einer arbeitsstelle einer fadenballonbildenden textilmaschine
US11235945B2 (en) 2016-02-02 2022-02-01 Saurer Technologies GmbH & Co. KG Device and method for determining the diameter of a yarn balloon formed by a continuous yarn at a workstation of a yarn balloon forming textile machine

Also Published As

Publication number Publication date
US4888944A (en) 1989-12-26
IN170813B (en。) 1992-05-23
JPS63256732A (ja) 1988-10-24
CH671972A5 (en。) 1989-10-13
DD268006A5 (de) 1989-05-17

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