DE2621196A1 - Thread breakage monitoring system - uses forces acting on guiding eye to produce electrical signal - Google Patents

Thread breakage monitoring system - uses forces acting on guiding eye to produce electrical signal

Info

Publication number
DE2621196A1
DE2621196A1 DE19762621196 DE2621196A DE2621196A1 DE 2621196 A1 DE2621196 A1 DE 2621196A1 DE 19762621196 DE19762621196 DE 19762621196 DE 2621196 A DE2621196 A DE 2621196A DE 2621196 A1 DE2621196 A1 DE 2621196A1
Authority
DE
Germany
Prior art keywords
sensors
eye
forces acting
eyelet
electrical signal
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Withdrawn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
DE19762621196
Other languages
German (de)
Inventor
Karl H Ing Grad Kessler
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.)
KESSLER KARL H ING
Original Assignee
KESSLER KARL H ING
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 KESSLER KARL H ING filed Critical KESSLER KARL H ING
Priority to DE19762621196 priority Critical patent/DE2621196A1/en
Publication of DE2621196A1 publication Critical patent/DE2621196A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)

Abstract

The equipment monitors all kinds of threads and wires running through a guiding eye for breakage. The forces acting on the eye (4) are used to generate an electrical signal, and to give easy distortion of the eye, its mounting shank (2) can be weakened (3) at one point. The shank can be supported via sensors generating electrical signals from its mounting clamp, the sensors being of piezoelectric or similar material whose electrical resistance alters under compression or tension loads. The eye can be flexibly mounted, the distortion being detected by magnetic, inductive, capacitative or photoelectric units, or pneumatically or by semiconductor.

Description

Fadenbruch-Meldeeinrichtung Bei der Verarbeitung von Fäden und Drähten aller Art ist die Meldung eines Fadenbruches von großer Bedeutung. Thread breakage reporting device When processing threads and wires of all kinds, reporting a thread breakage is of great importance.

Ein Fadenbruch tritt vor allen Dingen bei Aufspulvorgängen ein.A thread break occurs primarily during winding processes.

Mit Rücksieht darauf, daß in modernen Fertigungsanlagen oft Tausende von Wickelstellen vorhanden sind, kann sich nur ein Verfahren durchsetzen, welches ohne großen technischen Aufwand, bezogen auf die einzelne Wickelstelle, doch ein sicheres Überwachen aller Einzelfäden gestattet.With regard to the fact that in modern production plants there are often thousands of winding points are present, only one procedure can prevail, which without great technical effort, based on the individual winding point, but one safe monitoring of all individual threads is permitted.

Mit der nachstehend beschriebenen Erfindung ist es gelungen, ein sehr einfach herzustellendes Überwachungsgerät zu entwickeln.With the invention described below it has been possible to achieve a very easy to manufacture monitoring device to develop.

Darüber hinaus ist es auch möglich, die bisher bei Fadenführern üblichen Abmessungen einzuhalten, so daß die Nachrüstung bereits bestehender Anlagen unproblematisch ist.In addition, it is also possible to use the thread guides that have been customary up to now Dimensions must be adhered to, so that retrofitting of existing systems is unproblematic is.

Das Konzept der Erfindung ist in Fig.l dargestellt.The concept of the invention is shown in Fig.l.

Der Befestigungsschaft des Überwachungsgerätes (1) ist im Maschinengestell fest eingespannt. Dieser Schaft hat an der Stelle (3) einen geschwächten Querschnitt, so daß der verlängerte Schaft mit der Öse (4) ein schwingungsfähiges Gebilde bildet.The fastening shaft of the monitoring device (1) is in the machine frame firmly clamped. This shaft has a weakened cross-section at point (3), so that the elongated shaft with the eyelet (4) forms a vibratory structure.

Mit dem Schaft (1) ist die Hülse (3) einseitig fest verbunden.The sleeve (3) is firmly connected on one side to the shaft (1).

In Richtung der Öse (4) ist der Schaft an zwei senkrecht zur Durchlaufrichtung des Fadens (lo) liegenden Stellen zur Hülse (2) abgestützt. Die Abstützung (5), (6) besteht aus einem Material, welches auf Druckbelastung seinen Widerstand ändert oder eine elektrische Ladung abgibt.In the direction of the eyelet (4), two of the shaft are perpendicular to the direction of passage of the thread (lo) lying points on the sleeve (2) supported. The support (5), (6) consists of a material that changes its resistance when subjected to pressure or emits an electrical charge.

Der Faden (lo) läuft in der üblichen Art und Weise durch die Öse (4) und wird auf den Wickeldorn bzw. Spulenkörper (9) aufgewickelt.The thread (lo) runs in the usual way through the eyelet (4) and is wound onto the mandrel or bobbin (9).

Bei diesem Wickelvorgang ubt der Faden auf die Öse Kräfte aus.During this winding process, the thread exerts forces on the eyelet.

Diese Kräfte werden von den Sensoren (5), (6) aufgenommen und in elektrisch verwertbare Signale umgewandelt. Soweit ein Fadenbruch auftritt, fallen die auf die Öse (4) wirkenden Kräfte fort, so daß auch die elektrische Signalerzeugung unterbleibt.These forces are picked up by the sensors (5), (6) and converted electrically usable signals converted. If a thread break occurs, it is noticeable the eyelet (4) acting forces continue, so that the electrical signal generation does not occur.

Eine prinzipielle schaltungsanordnung, aus welcher die einfachheit des Verfahrens ersichtlich ist, ist in Fig. 2 abgebildet.A basic circuit arrangement from which the simplicity of the method can be seen, is shown in FIG.

Die Sensoren (5), (6) sind z.B. in eine wheatstonsche Brücke geschaltet, welche mit einer Gleichspannung gespeist wird.The sensors (5), (6) are e.g. connected in a Wheatstone bridge, which is fed with a DC voltage.

Zu der Speisung kann bemerkt werden, daß alle Überwachungsgeräte von einem Netzgerät versorgt werden können.Regarding the supply it can be noted that all monitoring devices from can be supplied by a power supply unit.

Der andere Zweig der Brückenschaltung führt zu einem einfachen RC-Verstärker (7), welcher die von den Sensoren (5), (6) kommenden Signale so ve-stärkt, daß sie eine Signallampe (8) ein- bzw.The other branch of the bridge circuit leads to a simple RC amplifier (7), which so ve-strengthens the signals coming from the sensors (5), (6) that they a signal lamp (8) on or off

ausschalten können. Die Signallampen können unmittelbar an der Überwachungsstelle angebracht werden, wobei man zweckmäßigerweise die Schaltung so gestaltet, daß diese bei Fadenbruch die Signallampe zum Aufleuchten bringt.can turn off. The signal lamps can be used directly at the monitoring point be attached, it is expedient to design the circuit so that this lights up the signal lamp if the thread breaks.

Das Überwachungspersonal kann dementsprechend sofort erkennen, wo ein Fadenbruch aufgetreten ist. Darüber hinaus ist auch noch eine zentrale Warnvorrichtung ansteuerbar.The monitoring staff can therefore immediately see where a thread break has occurred. In addition, there is also a central warning device controllable.

Als Sensoren (5), (6) wird man vorzugsweise gummielastische Materillen, welche unter Druckbelastung ihren Widerstand verändern, verwenden. Es ist aber auch denkbar, hier piezoelektrische Sensoren einzusetzen, welche unter Druckbelastung in bekannter Weise eine elektrische Ladung abgeben.The sensors (5), (6) are preferably rubber-elastic materials, which change their resistance under pressure. It is also conceivable to use piezoelectric sensors here, which are under pressure give off an electrical charge in a known manner.

Weitere Möglichkeiten bestehen durch die Verwendung kapazitiver, induktiver oder magnetischer Sensoren. Auch die pneumatische Signalerfassung mit diesen ist denkbar.Further possibilities exist through the use of capacitive, inductive ones or magnetic sensors. Also the pneumatic signal acquisition with these is conceivable.

Es sind auch Fälle vorstellbar, bei welchen anstelle einer Schwächung des Schaftes eine Trennung in zwei Teile sinnvoll wäre.Cases are also conceivable in which instead of a weakening Separating the shaft into two parts would make sense.

L e e r s e i t eL e r s e i t e

Claims (6)

Patentansprüche 1. Faden- und Drahtbruchüberwachungseinrichtung für durchlaufende Fäden und Drähte aller Art, dadurch gekennzeichnet, daß die auf die Fadenführungsöse wirkenden Kräfte zur elektrischen Signalerzeugung herangezogen werden. Claims 1. Thread and wire break monitoring device for continuous threads and wires of all kinds, characterized in that the Forces acting on the thread guide eyelet are used to generate electrical signals will. 2. wie 1., dadurch gekennzei(:hnet, daß der Halteschaft der Öse zur leichteren Verformbarkeit an einer Stelle geschwächt ausgeführt wird.2. As 1., thereby marked (: hnet that the holding shaft of the eyelet for easier deformability is executed weakened at one point. 3. wie 1. und 2., dadurch gekennzeichnet, daß der die Öse tragende durch die Schwächung beweglich gemachte Schaft über elektrische Signale erzeugende Sensoren kräftemäßig am Einspannteil des Schaftes abgestützt wird.3. As 1. and 2., characterized in that the one carrying the eyelet Shaft made movable by the weakening via electrical signals Sensors is supported in terms of force on the clamping part of the shaft. 4. wie 1. bis 3., dadurch gekennzeichnet, daß die Sensoren aus einem Material bestehen, welches unter Druck bzw. Zugbelastung den elektrischen Widerstand verändert.4. As 1. to 3., characterized in that the sensors from one Material are made, which under pressure or tensile load the electrical resistance changes. 5. wie 1. bis 3., jedoch dadurch gekennzeichnet, daß als Sensoren piezoelektrisch wirksames Material verwendet wird.5. As 1. to 3., but characterized in that as sensors piezoelectrically effective material is used. 6. wie 1. bis 3., dadurch gekennzeichnet, daß die Abstützung elastisch erfolgt, jedoch die Meßwerterfassung auf magnetischer, induktiver, kapazitiver, magnetoelastischer, fotoelektrischer, auf Halbleiterbasis oder nach einer pneumatischen Methode erfolgt6. As 1. to 3., characterized in that the support is elastic takes place, but the measured value acquisition on magnetic, inductive, capacitive, Magnetoelastic, photoelectric, semiconductor-based or pneumatic Method is done
DE19762621196 1976-05-13 1976-05-13 Thread breakage monitoring system - uses forces acting on guiding eye to produce electrical signal Withdrawn DE2621196A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19762621196 DE2621196A1 (en) 1976-05-13 1976-05-13 Thread breakage monitoring system - uses forces acting on guiding eye to produce electrical signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762621196 DE2621196A1 (en) 1976-05-13 1976-05-13 Thread breakage monitoring system - uses forces acting on guiding eye to produce electrical signal

Publications (1)

Publication Number Publication Date
DE2621196A1 true DE2621196A1 (en) 1977-12-01

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DE19762621196 Withdrawn DE2621196A1 (en) 1976-05-13 1976-05-13 Thread breakage monitoring system - uses forces acting on guiding eye to produce electrical signal

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DE (1) DE2621196A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330094A (en) * 1979-03-26 1982-05-18 Stephan Mayer Method and apparatus for measuring the length of a thread withdrawn overhead from a thread carrier
WO1987004418A1 (en) * 1986-01-27 1987-07-30 Iro, Aktiebolaget Yarn storing device
EP0459322A1 (en) * 1990-05-28 1991-12-04 ROJ ELECTROTEX S.p.A. Instrument to measure yarn tension and weft yarn feeder equipped with said measuring instrument
EP0866015A2 (en) * 1997-01-28 1998-09-23 Carmelo Angelo Cortese Unit for detecting the integrity of textile yarns

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4330094A (en) * 1979-03-26 1982-05-18 Stephan Mayer Method and apparatus for measuring the length of a thread withdrawn overhead from a thread carrier
WO1987004418A1 (en) * 1986-01-27 1987-07-30 Iro, Aktiebolaget Yarn storing device
EP0459322A1 (en) * 1990-05-28 1991-12-04 ROJ ELECTROTEX S.p.A. Instrument to measure yarn tension and weft yarn feeder equipped with said measuring instrument
US5144988A (en) * 1990-05-28 1992-09-08 Roj Electrotex S.P.A. Weft feeder with instrument for measuring yarn tension
EP0866015A2 (en) * 1997-01-28 1998-09-23 Carmelo Angelo Cortese Unit for detecting the integrity of textile yarns
EP0866015A3 (en) * 1997-01-28 1999-04-21 Carmelo Angelo Cortese Unit for detecting the integrity of textile yarns

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