EP0340756B1 - Procédé et dispositif pour surveiller l'égalisation d'au moins un ruban de fibres dans un banc d'étirage contrôlé - Google Patents

Procédé et dispositif pour surveiller l'égalisation d'au moins un ruban de fibres dans un banc d'étirage contrôlé Download PDF

Info

Publication number
EP0340756B1
EP0340756B1 EP89108023A EP89108023A EP0340756B1 EP 0340756 B1 EP0340756 B1 EP 0340756B1 EP 89108023 A EP89108023 A EP 89108023A EP 89108023 A EP89108023 A EP 89108023A EP 0340756 B1 EP0340756 B1 EP 0340756B1
Authority
EP
European Patent Office
Prior art keywords
limiting value
regulator
measuring member
comparison
working range
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.)
Revoked
Application number
EP89108023A
Other languages
German (de)
English (en)
Other versions
EP0340756A1 (fr
Inventor
Herbert König
Gerhard Stähle
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.)
Truetzschler GmbH and Co KG
Original Assignee
Truetzschler GmbH and Co KG
Zinser Textilmaschinen GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6353625&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0340756(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Truetzschler GmbH and Co KG, Zinser Textilmaschinen GmbH filed Critical Truetzschler GmbH and Co KG
Publication of EP0340756A1 publication Critical patent/EP0340756A1/fr
Application granted granted Critical
Publication of EP0340756B1 publication Critical patent/EP0340756B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/22—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to presence of irregularities in running material
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities

Definitions

  • the invention relates to a method and a device for monitoring the uniformity of at least one fiber structure in a regulating drafting system, in particular in a draw frame, wherein deviations in the mass of the fiber structure are detected by at least one measuring element and compensated for by a controller and at least one actuator.
  • regulating drafting devices have a regulating system for comparing fiber bundles, which detects and compensates for deviations in the mass of the fiber bundle from a desired value over short lengths.
  • This control system can be designed as a regulation or as a controller.
  • the regulating drafting units often have a further regulating system which records deviations over long lengths and essentially serves to keep numbers. This regulation system is always designed as a regulation.
  • the elements of these regulating systems can be subject to malfunctions which not only do not make the fiber structure uniform, but which even deteriorate the uniformity of the fiber structure. Such malfunctions are not readily recognizable with the help of previously known devices and methods and lead in particular to routes with their high Material throughput quickly to large quantities of defective products.
  • a device for titer regulation of the slivers on small, medium and long lengths of spinning preparation is already known from the prior art (CH-A 557895).
  • an input-side measuring element for detecting fiber sliver mass fluctuations is used, as well as an associated control device for controlling an output-side roller drive, the exact delay being controlled by a speed monitoring device on the drafting rollers.
  • a so-called transducer system is used here, which converts the distance between two opposing rollers through which a belt runs into an electrical signal.
  • fixed measured variables are used to obtain a strip of as constant a density as possible at the exit of a card and at the same time to ensure that the strip is evenly deposited in a rotary pot.
  • Another state of the art is a method for operating a section used for doubling and drawing fiber slivers (DE-A-3212891).
  • the individual fiber bands to be doubled are monitored separately for fluctuations in mass, in particular for the presence or absence of individual fiber bands, a signal being triggered when a predetermined fiber band thickness limit value is exceeded or undershot. This triggering is dependent on the input signals from the measuring elements.
  • a measuring element which consists of a light source, a band channel, an adjustment screen and two photocells (Melliand Textile Reports, 49, 5, page 525).
  • a beam of light penetrates the continuous belt in the belt channel and the setting screen and strikes one photo cell each.
  • Intermediate elements become electromagnetic Brakes actuated, which change the speed of discharge cylinders of a drafting system via an epicyclic gear mechanism and thereby influence the warpage in the desired sense.
  • the invention has for its object to provide a method and an apparatus of the type mentioned, in which malfunctions of control systems, such as measuring elements, controllers, actuators are easily recognizable and thus the operation of control systems can be better monitored.
  • the measured values of the measuring element and / or the control signals of the controller are compared with at least one adjustable limit value, a display and / or switching process being triggered when the limit value is exceeded.
  • the limit value is advantageously chosen such that it is not reached during normal operation of the regulating device. On the other hand, exceeding this draws the operator's attention to a possible malfunction of the regulating system or the measuring element.
  • the limit is chosen to be only slightly higher than the values which occur during normal operation, it is generally sufficient to draw the operator's attention to the signal. If, on the other hand, a significantly higher limit value is provided, it is advantageous to switch off the machine when it is exceeded. Both of the aforementioned limit values can also be monitored simultaneously.
  • the operator must check the feed belt: If its unevenness is greater than normal, the operation of the upstream machines must be checked. If, on the other hand, the unevenness of the Original material is normal, there is suspicion of malfunction of the regulating device and / or the measuring elements.
  • the fiber structure delivered by the regulating drafting device must be checked. If its mass fluctuation lies within the intended limit values, there is suspicion of a malfunction of the measuring element that detects long-period fluctuations - it thus indicates a deviation, which obviously does not exist. If, on the other hand, the intended limit values of the unevenness in the fiber structure are actually exceeded, there is suspicion of malfunction of the regulating system and / or of the measuring element that detects short-term fluctuations.
  • a regulating drafting system has two schematically illustrated roller pairs 1 and 2, which are each driven by drive motors 7 and 9 and drive shafts 6 and 8.
  • a fiber structure 3 runs through the two pairs of rollers 1 and 2.
  • the roller pairs 1 and 2 are preceded by a short-time measuring element 4, which is connected to a controller 10 via a line 15.
  • This controller 10 is connected via a line 21 to the drive 9 and via lines 18 and 20 with the drive 7 in operative connection.
  • the measured values of the measuring element 4 control the controller 10 in a manner known per se so that it influences the rotational speed of the drive motor 9 of the pair of rollers 1 via line 21 in the sense of reducing a deviation of the fiber structure 3 determined by the measuring element 4 from the predetermined desired value.
  • a long-term measuring element 5 is arranged behind the roller pairs 1 and 2 in the area of the fiber structure 3, which is connected to the controller 10 via lines 16 and 17. As described above for the measuring element 4, the measuring element 5 also influences the delivery speed of the pair of rollers by means of the controller 10 in the sense of reducing a detected strip weight deviation.
  • the measuring element 5 is connected via the line 16 to an actual-target comparison point 12, which is connected via a line 19 to an adjusting device 13 for the limit value range, as well as a setting switch 11 and a display device 14.
  • the measured values of the measuring element 5 are compared with the set limit value of the setting device 13, the display device 14 or a switching operation of the switching mechanism 11 being triggered when the limit value is exceeded, as a result of which the drives 7 and 9 are switched off.
  • the limit value set by the setting device 13 is exceeded, an operator is made aware of a possible malfunction of the regulating system or the measuring elements 4 or 5.
  • the limit value defined by the setting device 13 is only slightly higher than the normal value, it is sufficient if the signal lamp 14 lights up. If, on the other hand, a significantly higher limit value is provided, it is expedient to shut down the drives 7 and 9 of the regulating drafting device via the setting switch 11 in order to prevent the delivery of defective strip.
  • the line 21 between the controller 10 and the drive motor 9 is connected via a line 22 to an adjusting device 13 ⁇ for a wide limit range and a setting switch 11. Another connection is made via line 23 to a further adjusting device 13 'for a narrower area, this adjusting device 13 being connected to a signal lamp 14.
  • the control signal emitted by the controller 10 exceeds the limit set on the adjusting device 13 ', the normal working range of the control signals of the controller 10, the signal lamp 14 lights up. If, on the other hand, the limit value set on the adjusting device 13 ', the normal working range of the actuating signals is exceeded, the drive motors 9 and 7 of the roller pairs 1 and 2 are separated from the mains by the actuating switch 11 and stopped.
  • the operator must first check the supply belt 3 (arrow II). If the unevenness is greater than normal, the operation of the upstream machine must be checked. If, on the other hand, the unevenness of the original material is normal, there is suspicion of malfunction of the controller 10 or the measuring element 4.
  • FIG. 2 can be simplified in that only one adjusting device 13 analogous to the embodiment according to FIG. 1 is used.
  • the invention has the effect that the mode of operation of the regulating systems is monitored in a simple manner, malfunctions being recognized in good time and thus the manufacture of defective products being effectively avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (7)

1. Procédé de surveillance de l'égalisation d'au moins une bande de tissu non-tissé dans un banc d'étirage à régulation, notamment dans une étireuse, qui permet de relever des écarts de la masse du matériau non-tissé, par rapport à une valeur consigne, au moyen d'au moins un élément capteur, et de compenser ces écarts par l'intermédiaire d'un régulateur et d'au moins un élément de réglage final, caractérisé en ce que les valeurs mesurées par l'élément capteur (4, 5) et/ou les signaux de réglage final du régulateur (10) sont comparés au moins à une valeur limite réglable, et en ce qu'en cas de dépassement de la valeur limite, l'on déclenche une signalisation (14) et/ou une opération de commande.
2. Procédé selon la revendication 1, caractérisé en ce que les signaux de réglage final du dispositif régulateur sont comparés à la valeur limite réglable donnée.
3. Procédé selon la revendication 1, caractérisé en ce que les valeurs mesurées par un élément capteur (5) disposé en aval du système réglé sont comparées à la valeur limite réglable donnée.
4. Procédé selon l'une des revendications 2 ou 3, caractérisé en ce qu'il incorpore une valeur limite qui est proche de la plage de fonctionnement du régulateur (10), voire de l'élément capteur (4, 5), ainsi qu'une valeur limite qui est plus éloignée de la plage de fonctionnement du régulateur (10), voire de l'élément capteur (4, 5).
5. Dispositif permettant la mise en application du procédé selon l'une des revendications précédentes, caractérisé en ce que la sortie du régulateur (10) est reliée, par l'intermédiaire d'un point (12) de comparaison valeur EFFECTIVE/ CONSIGNE, à au moins un dispositif (13; 13′; 13˝) de réglage de la valeur limite et un dispositif (14) de signalisation, et/ou à un interrupteur (11) de réglage final.
6. Dispositif permettant la mise en application du procédé selon l'une des revendications 1 à 4, caractérisé en ce que la sortie d'un élément capteur (5) disposé en aval du système réglé communique, par l'intermédiaire-d'un point (12) de comparaison valeur EFFECTIVE/CONSIGNE, avec au moins un dispositif (13) de réglage de la valeur limite et un dispositif (14) de signalisation, et/ou avec un interrupteur (11) de réglage final.
7. Dispositif selon les revendications 5 ou 6, caractérisé en ce que le dispositif (13′; 13˝) de réglage est réalisé de manière à prédéfinir deux valeurs limites réglables de façon indépendante l'une de l'autre, dont une valeur limite, qui est plus proche de la plage de fonctionnement du régulateur (10), voire de l'élément capteur (4, 5), est prévue pour activer un dispositif (14) de signalisation, et dont une valeur limite, qui est plus éloignée de la plage de fonctionnement du régulateur (10), est prévue pour activer un interrupteur (11) de réglage final.
EP89108023A 1988-05-04 1989-05-03 Procédé et dispositif pour surveiller l'égalisation d'au moins un ruban de fibres dans un banc d'étirage contrôlé Revoked EP0340756B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3815200 1988-05-04
DE3815200A DE3815200C2 (de) 1988-05-04 1988-05-04 Verfahren und Vorrichtung zur Überwachung des Vergleichmäßigens mindestens eines Faserverbandes in einem Regulierstreckwerk

Publications (2)

Publication Number Publication Date
EP0340756A1 EP0340756A1 (fr) 1989-11-08
EP0340756B1 true EP0340756B1 (fr) 1991-12-04

Family

ID=6353625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108023A Revoked EP0340756B1 (fr) 1988-05-04 1989-05-03 Procédé et dispositif pour surveiller l'égalisation d'au moins un ruban de fibres dans un banc d'étirage contrôlé

Country Status (2)

Country Link
EP (1) EP0340756B1 (fr)
DE (2) DE3815200C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7103440B2 (en) 2001-12-11 2006-09-05 Rieter Ingolstadt Spinnereimaschinenbau Ag Use of microwaves for sensors in the spinning industry

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019469A1 (de) * 1990-06-19 1992-01-02 Hoechst Ag Verfahren zur ueberwachung der gleichmaessigkeit von spinnfaserkabeln
CH683347A5 (de) * 1990-06-25 1994-02-28 Rieter Ag Maschf Steuerung bzw. Regelung einer Faserverarbeitungsanlage.
US5509179A (en) * 1990-06-25 1996-04-23 Mondini; Giancarlo Autoleveller draw frame having process feed back control system
EP0477589B1 (fr) * 1990-09-26 1996-04-24 Maschinenfabrik Rieter Ag Procédé pour la correction d'un signal de mesure déterminé pour la masse d'un ruban de carde d'un régulateur d'étirage pour des rubans de carde avec un organe de mesure de sortie
DE4219777A1 (de) * 1992-06-17 1993-12-23 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zur Signalanalyse einer Regulierstrecke
DE19537345C2 (de) * 1994-11-25 2000-05-25 Rieter Ag Maschf Verfahren zum Steuern einer Spinnmaschine sowie zugehörige Spinnmaschine
DE50104822D1 (de) 2000-11-08 2005-01-20 Rieter Ag Maschf Steuerung von Spinnstellen in einer Spinnmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE720200C (de) * 1938-07-01 1942-04-28 Aeg Vorrichtung an Strecken zur Regelung des Verzuges
CH328036A (de) * 1954-12-31 1958-02-28 Zellweger Uster Ag Verfahren und Vorrichtung zur automatischen Regulierung des Gewichtes pro Längeneinheit von Textilmaterial der Spinnerei
BE768780A (fr) * 1971-06-21 1971-11-03 Texcontrol Appareil textile destine a la regulation du titre a court, moyen et long termes des rubans de fibres en preparation de filature
US3829751A (en) * 1973-04-20 1974-08-13 Gen Electric Apparatus for controlling variation in a characteristic of strand-like material
DE3212891A1 (de) * 1982-04-06 1983-10-06 Zinser Textilmaschinen Gmbh Verfahren zum betreiben einer strecke und strecke
SE442915B (sv) * 1984-07-25 1986-02-03 Barnaulskij Ok B Avtomatiki Forfarande for metning av diametern hos en trad
CH668781A5 (de) * 1984-09-25 1989-01-31 Zellweger Uster Ag Verfahren und vorrichtung zur optimierung des streckprozesses bei regulierstrecken der textilindustrie.
IT1227771B (it) * 1986-07-04 1991-05-06 Zinser Textilmaschinen Gmbh Procedimento e dispositivo per regolare lo stiro di un nastro di fibre in una macchina tessile.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7103440B2 (en) 2001-12-11 2006-09-05 Rieter Ingolstadt Spinnereimaschinenbau Ag Use of microwaves for sensors in the spinning industry

Also Published As

Publication number Publication date
DE58900523D1 (de) 1992-01-16
DE3815200A1 (de) 1989-11-16
EP0340756A1 (fr) 1989-11-08
DE3815200C2 (de) 1998-01-29

Similar Documents

Publication Publication Date Title
DE68926199T2 (de) Streckvorrichtung mit selbsttätigem Ausgleich
DE2704241C3 (de) Vorrichtung zum Erzeugen eines gleichmäßigen, kontinuierlichen Faserbandes
EP1817448B1 (fr) Procede pour optimiser le rendement de la production d'un metier a filer
CH668437A5 (de) Verfahren und vorrichtung zum erzeugen einer gleichmaessigen, kontinuierlichen fasermenge.
EP0412448B1 (fr) Système d'étirage avec commande maillée
DE2543839B1 (de) Vorrichtung zum erzeugen eines gleichmaessigen textilen faserbandes
EP0036002B1 (fr) Dispositif de commande de la vitesse de rotation des broches d'un banc a broches
EP1902990A1 (fr) Dispositif pour une machine de prétraitement de filature
EP0340756B1 (fr) Procédé et dispositif pour surveiller l'égalisation d'au moins un ruban de fibres dans un banc d'étirage contrôlé
WO1993018213A1 (fr) Procede et dispositif de regulation de l'etirage dans un banc d'etirage
EP0289010B1 (fr) Procédé et dispositif pour la surveillance et le maintien d'une qualité de fil prédéterminée
EP0224683B1 (fr) Procédé de réglage de la tension du tissu sur une laineuse
DE4304988C1 (de) Verfahren und Vorrichtung zur Herstellung eines Vlieses mit veränderlicher Dicke
CH694055A5 (de) Vorrichtung an einer Strecke zur Verarbeitung eines Faserverbandes aus Faserbändern.
EP0978581B1 (fr) Machine pour le traitement de matériau textile avec banc d'étirage
DE19925271B4 (de) Streckwerk für eine Spinnereimaschine, insbesondere eine Regulierstrecke für Baumwolle, Chemiefasern u. dgl.
EP1009870A1 (fr) Banc d'etirage regule
DE19809875A1 (de) Vorrichtung zum Zuführen von Faserbändern an Streckwerken von Spinnereimaschinen, insbesondere von Strecken
DE3519301A1 (de) Vorrichtung mit mindestens einer spulstelle zum herstellen der wicklung einer kreuzspule
DE3218471C2 (de) Vorrichtung zur Herstellung eines Effektgarnes
EP0751244B1 (fr) Procédé pour le réglage de la force de tension de fil
WO2007022658A1 (fr) Systeme d'alimentation en flocons
DE2220748B2 (de) Verfahren und vorrichtung zur vergleichmaessigung des querschnitts oder des gewichtes pro laengeneinheit eines mittels karde oder krempel produzierten faserbandes
EP0678601A2 (fr) Banc d'étirage contrôlé
DE10161522A1 (de) Spinnmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE FR IT LI

17P Request for examination filed

Effective date: 19891012

17Q First examination report despatched

Effective date: 19901130

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR IT LI

REF Corresponds to:

Ref document number: 58900523

Country of ref document: DE

Date of ref document: 19920116

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: TRUETZSCHLER GMBH & CO. KG

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: SCHUBERT & SALZER MASCHINENFABRIK AG

Effective date: 19920731

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

26 Opposition filed

Opponent name: ZELLWEGER USTER AG

Effective date: 19920904

Opponent name: SCHUBERT & SALZER MASCHINENFABRIK AG

Effective date: 19920731

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19930511

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930527

Year of fee payment: 5

Ref country code: CH

Payment date: 19930527

Year of fee payment: 5

R26 Opposition filed (corrected)

Opponent name: RIETER INGOLSTADT SPINNEREIMASCHINENBAU AG * 92090

Effective date: 19920731

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: TRUETZSCHLER GMBH & CO. KG

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 19930827

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO