EP0312805A1 - Production control - Google Patents

Production control Download PDF

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Publication number
EP0312805A1
EP0312805A1 EP88115800A EP88115800A EP0312805A1 EP 0312805 A1 EP0312805 A1 EP 0312805A1 EP 88115800 A EP88115800 A EP 88115800A EP 88115800 A EP88115800 A EP 88115800A EP 0312805 A1 EP0312805 A1 EP 0312805A1
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EP
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Prior art keywords
production
change
machine
processing
width
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EP88115800A
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German (de)
French (fr)
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EP0312805B1 (en
Inventor
Robert Demuth
Paul Staeheli
René Waeber
Christoph Gründler
Franz Maechler
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/02—Hoppers; Delivery shoots

Definitions

  • the present invention relates to fiber processing machines or systems with a plurality of different fiber processing stages.
  • a short-staple spinning mill comprises a plurality of fiber-processing stages between the bale store and the bobbin packing or bobbin conveying system.
  • the fibers are processed in the form of an elongated, coherent structure (ribbon, sliver, yarn), while in the "upstream” stages the fibers are processed in various, non-contiguous or relatively coarse Shapes are processed, e.g. free-flying, as a cotton wool, in bales, etc.
  • the principle can be used to control or regulate a fiber processing plant.
  • a target value for the overall production of a processing stage can be determined and the processing range of this stage can be changed accordingly, either directly or as a function of a determined deviation in a target / actual comparison.
  • the invention is particularly advantageous where the machine works with a template in the form of a wadding and in particular in the control or regulation of a feed machine for a card sliver.
  • the invention also encompasses a fiber processing device with means for controlled change in the processing range of this device.
  • the device could, for example, comprise a working element of variable effective length, for example a working element consisting of a plurality of adjacent, individually drivable working elements, so that the number of elements in operation can be controlled.
  • This variant could be used for bale removal, as already indicated in our European patent application No. 221 306.
  • the length of the work organ can be kept constant while the width of the template can be changed.
  • the width of a filling shaft (parallel to the length of the feed roller) of a feed machine could be changed, for example as described in DOS 3149965 or DOS 3542816.
  • the invention is advantageous both in a continuous system and in a batch system, i.e. the individual stages can normally run with a continuously changeable production, or they can work in the so-called stop / go mode, the production remaining constant within a go interval.
  • the invention can advantageously be combined with other control methods, e.g. In our European patent No.93235 we describe a method for optimizing stop / go conditions in a bale removal machine. Fine production changes have to be accepted. Such fine production changes could e.g. be carried out with the help of the present invention, so that the specific production and thereby the quality remains constant.
  • a target value for the total production of a stage can represent either the current production or the average (effective) production of the stage. However, the latter can only last for a certain period of time (measurement) are determined, taking into account any production fluctuations (eg switch-off intervals during stop / go operation, changes in current production during "continuous" operation).
  • Fig. 1 shows four processing stages of the blowroom / opener of a short batch spinning mill.
  • Level K represents the carding machine
  • level S the card feed
  • level M a mixing operation
  • level B the bale removal.
  • Other stages can also be provided, for example an additional cleaning stage between bale removal and mixing.
  • the entire system is controlled by a master computer uP, a control signal q representing the total production of the card is obtained and supplied to the master computer ⁇ P, so that the latter can determine the corresponding production of each stage upstream of the cards via corresponding lines s, m, b. This controls the material flow MF1, MF2, MF3 between the different stages.
  • each upstream stage determines its production on the basis of two signals, namely one Signal from the host computer ⁇ P and a signal from the immediately downstream stage.
  • This arrangement is well known and can operate either continuously or discontinuously, as previously described.
  • a production change in an upstream stage is usually carried out by changing a roller speed, a conveying speed or a "processing depth” (e.g. the removal depth of a bale opener).
  • a processing depth e.g. the removal depth of a bale opener.
  • Fig. 2 shows schematically a material template V and a work roll W of a job.
  • the roller W normally has a predetermined working length L, which is provided, for example, with a clothing or with noses or teeth in order to be able to process fibers over the entire length L.
  • the technology depends on the speed of the roller W, its clothing, the (predetermined) thickness t of the template V and the fiber density in the template.
  • a necessary change in production is usually effected by changing the roller speed.
  • the clothing type, template thickness and template density cannot be changed accordingly, this means a change in technology (i.e. quality) in the conventional process.
  • a Production change is carried out by changing the effective length L and / or the effective width B, all other parameters can be kept constant and in particular the flow rate per hour per unit length of the work roll W can be kept constant.
  • Fig. 2 shows schematically by dashed lines two possibilities for changing the production in this way, namely a “spreading” or “narrowing" of the original width, e.g. between the values B and B1, and an extension or abbreviation of the working length L by assembling the roller W from adjacent, individually drivable roller parts W1 to W4.
  • the invention is not restricted to the use in connection with work organs in the form of rollers and also not to a template in the form of a cotton wool.
  • a cleaning station where the fibers are transported through the machine in the form of free-flying flakes, the effective working width of the machine could also be changed according to this invention.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Paper (AREA)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

A change in the production of a fibre-processing machine is made by a change of the processing width (B). <IMAGE>

Description

Die vorliegende Erfindung bezieht sich auf faserverar­beitende Maschinen bzw. faserverarbeitende Anlagen mit einer Mehrzahl verschiedener faserverarbeitender Stufen.The present invention relates to fiber processing machines or systems with a plurality of different fiber processing stages.

Stand der TechnikState of the art

Eine Kurzstapelspinnerei umfasst eine Mehrzahl faser­verarbeitender Stufen zwischen dem Ballenlager und der Spulenpackerei bzw. dem Spulenfördersystem. In den "nachgeschalteten" Stufen, normalerweise nach der Karderie, werden die Fasern in der Form eines längli­chen, zusammenhängenden Gebildes (Band, Lunte, Garn) verarbeitet, während in den "vorgeschalteten" Stufen die Fasern in verschiedenen, nicht zusammenhängenden bzw. relativ groben Formen verarbeitet werden, z.B. freifliegend, als eine Watte, in Ballen usw..A short-staple spinning mill comprises a plurality of fiber-processing stages between the bale store and the bobbin packing or bobbin conveying system. In the "downstream" stages, usually after the carding machine, the fibers are processed in the form of an elongated, coherent structure (ribbon, sliver, yarn), while in the "upstream" stages the fibers are processed in various, non-contiguous or relatively coarse Shapes are processed, e.g. free-flying, as a cotton wool, in bales, etc.

Dabei ist es bekannt, dass die "Bearbeitung" der Fa­ sern in diesen vorgeschalteten Stufen einen wesentli­chen Einfluss auf die Qualität des Endproduktes aus­übt. Es ist auch bekannt, dass diese "Bearbeitung" von der Durchflussmenge pro Zeiteinheit (die "Produktion") in jeder Verarbeitungsstufe abhängig ist, was zu Anstrengungen geführt hat, die Produktion durch "kontinuierlichen" Betrieb der Anlage so weit wie möglich über Zeit zu vergleichmässigen und dabei durchschnittlich eine bessere Qualität (z.B. Reinigungsgrad) zu erreichen.It is known that the "processing" of the company in these upstream stages has a significant influence on the quality of the end product. It is also known that this "processing" is dependent on the flow rate per unit of time (the "production") at each processing stage, which has led to efforts to make production as uniform as possible over time by "continuously" operating the plant and at the same time achieve a better quality (e.g. degree of cleaning).

Das Problem liegt aber darin, dass kleinere unvermeid­bare Veränderungen der Produktion nicht leicht aus­geglichen werden können, so dass die durchschnittlich bessere Qualität durch kleinere, aber doch unangeneh­me Qualitätsschwankungen erkauft werden muss.The problem, however, is that smaller, unavoidable changes in production cannot be easily compensated for, so that the better quality on average has to be bought through smaller but unpleasant quality fluctuations.

Die ErfindungThe invention

Gemäss dieser Erfindung werden Produktionsänderungen, d.h. Änderungen des Materialdurchflusses pro Zeitein­heit, einer faserverbeitenden Maschine durch Änderung der "Verarbeitungsbreite" bewerkstelligt, d.h. durch Änderung der Breite des Materialflusses (quer zur Flussrichtung) durch die Verarbeitungsorgane der Maschine, ohne dabei die Durchflussmenge pro Zeit­und Längeneinheit der Breite wesentlich zu ändern. Damit kann die "spezifische Produktion" (die Produktion pro Längeneinheit der effektiven Maschinenbreite) im wesentlichen konstant gehalten werden, was eine ungefähr konstante Qualität bedeutet. Die Gesamtproduktion der Maschine (Durchfluss pro Zeiteinheit über der ganzen Breite) kann aber in einer kontrollierbaren Art und Weise verändert werden.According to this invention will be changes in the production, ie, changes in the material flow per unit time, a faserverbeitenden machine accomplished by changing the "processing width", that is, by changing the width of the material flow (transverse to the direction of flow) by the processing elements of the machine, without the flow rate per unit time and unit length to change the width significantly. The "specific production" (the production per unit length of the effective machine width) can thus be kept essentially constant, which means an approximately constant quality. The overall production of the machine (flow per unit of time across the entire width) can, however, be changed in a controllable manner.

Das Prinzip kann zur Steuerung oder Regelung einer fa­serverarbeitenden Anlage ausgenützt werden. Wie bei einem konventionellen Steuer- oder Regelverfahren, kann ein Sollwert für die Gesamtproduktion einer Verarbeitungsstufe bestimmt werden und die Verarbeitungsbreite dieser Stufe entsprechend verändert werden, entweder direkt oder in Abhängigkeit von einer festgestellten Abweichung bei einem Soll/Ist-Vergleich.The principle can be used to control or regulate a fiber processing plant. As with a conventional control method, a target value for the overall production of a processing stage can be determined and the processing range of this stage can be changed accordingly, either directly or as a function of a determined deviation in a target / actual comparison.

Die Erfindung ist besonders vorteilhaft, wo die Ma­schine mit einer Vorlage in der Form einer Watte ar­beitet und insbesondere in der Steuerung oder Rege­lung einer Speisemaschine für einen Kardenstrang.The invention is particularly advantageous where the machine works with a template in the form of a wadding and in particular in the control or regulation of a feed machine for a card sliver.

Die Erfindung umfasst auch eine faserverarbeitende Vorrichtung mit Mitteln zur kontrollierten Verände­rung der Verarbeitungsbreite dieser Vorrichtung. Die Vorrichtung könnte z.B. ein Arbeitsorgan veränderba­rer effektiver Länge umfassen, z.B. ein Arbeitsorgan, das aus einer Mehrzahl nebeneinanderliegender, indi­viduell antreibbarer Arbeitselemente besteht, so dass die Anzahl in Betrieb stehender Elemente gesteuert werden kann. Diese Variante könnte bei der Ballenab­tragung benutzt werden, wie in unserer europäischen Patentanmeldung Nr. 221 306 schon angedeutet wurde. In einer anderen Variante kann aber die Länge des Arbeitsorgans konstant gehalten werden, während die Breite der Vorlage veränderbar ist. Es könnte z.B. die Breite eines Füllschachtes (parallel zur Länge der Speisewalze) einer Speisemaschine geändert werden, beispielsweise, wie in DOS 3149965 oder DOS 3542816 beschrieben worden ist.The invention also encompasses a fiber processing device with means for controlled change in the processing range of this device. The device could, for example, comprise a working element of variable effective length, for example a working element consisting of a plurality of adjacent, individually drivable working elements, so that the number of elements in operation can be controlled. This variant could be used for bale removal, as already indicated in our European patent application No. 221 306. In another variant, the length of the work organ can be kept constant while the width of the template can be changed. For example, the width of a filling shaft (parallel to the length of the feed roller) of a feed machine could be changed, for example as described in DOS 3149965 or DOS 3542816.

Die Erfindung ist sowohl in einer kontinuierlich ar­beitenden Anlage als auch in einer diskontinuierlich arbeitenden Anlage vorteilhaft, d.h. die individuel­len Stufen dürfen normalerweise mit einer kontinuier­lich veränderbaren Produktion laufen, oder sie dürfen im sogenannten Stop/Go-Modus arbeiten, wobei die Pro­duktion innerhalb eines Go-Intervalls konstant bleibt. Die Erfindung kann vorteilhafterweise mit anderen Steuer- und Regelverfahren kombiniert werden, z.B. in unserem europäischen Patent No.93235 beschreiben wir ein Verfahren zur Optimierung von Stop/Go-Verhältnissen in einer Ballenabtragungsma­schine. Dabei müssen feine Produktionsänderungen in Kauf genommen werden. Solche feinen Produktions­änderungen könnten z.B. mit Hilfe der vorliegenden Erfindung durchgeführt werden, so dass die spezifische Produktion und dadurch die Qualität konstant bleibt.The invention is advantageous both in a continuous system and in a batch system, i.e. the individual stages can normally run with a continuously changeable production, or they can work in the so-called stop / go mode, the production remaining constant within a go interval. The invention can advantageously be combined with other control methods, e.g. In our European patent No.93235 we describe a method for optimizing stop / go conditions in a bale removal machine. Fine production changes have to be accepted. Such fine production changes could e.g. be carried out with the help of the present invention, so that the specific production and thereby the quality remains constant.

Ein Verfahren zur Regelung der Kardenspeisung ist in unserer schweizerischen Patentanmeldung Nr. 3109/87 beschrieben worden. Dieses Verfahren wurde primär zur Anwendung mit einem Stop/Go Betriebsmodus konzipiert, um die mit dem "kontinuierlichen" Betrieb verbundenen Qualitätsschwankungen zu vermeiden. Die Kombination eines Verfahrens gemäss 3109/87 mit dem nun vorliegen­den Verfahren bringt aber wesentlich grössere Frei­heit zur Bestimmung des Betriebsmodus.A method for regulating the card feed has been described in our Swiss patent application No. 3109/87. This method was primarily designed for use with a stop / go operating mode in order to avoid the quality fluctuations associated with "continuous" operation. The combination of a method according to 3109/87 with the now available method, however, brings much greater freedom to determine the operating mode.

Ob ein "kontinuierlicher" oder diskontinuierlicher (Stop/Go) Betriebsmodus gewählt wird, kann ein Soll­wert für die Gesamtproduktion einer Stufe entweder die momentane Produktion oder die durchschnittliche (effektive) Produktion der Stufe darstellen. Letztere kann aber nur über eine gewisse Zeit- (Mess-)periode festgestellt werden, wobei allfällige Produktions­schwankungen (z.B. Ausschaltintervalle beim Stop/Go Betrieb, Aenderungen der momentanen Produktion beim "kontinuierlichen" Betrieb) berücksichtigt werden müssen.Whether a "continuous" or discontinuous (stop / go) mode of operation is selected, a target value for the total production of a stage can represent either the current production or the average (effective) production of the stage. However, the latter can only last for a certain period of time (measurement) are determined, taking into account any production fluctuations (eg switch-off intervals during stop / go operation, changes in current production during "continuous" operation).

Die Erfindung wird nun anhand der beiliegenden Figu­ren näher erläutert. Es zeigt:

  • Fig. 1 Eine schematische Darstellung einer faserver­arbeitenden Anlage einer Kurzstapelspinnerei, und
  • Fig. 2 eine schematische Darstellung einer Arbeits­stelle dieser Anlage zur Erklärung des neuen Prinzips.
The invention will now be explained in more detail with reference to the accompanying figures. It shows:
  • Fig. 1 is a schematic representation of a fiber processing system of a short staple spinning mill, and
  • Fig. 2 is a schematic representation of a job of this system to explain the new principle.

Fig. 1 zeigt vier Verarbeitungsstufen der Putzerei / Öffnerei einer Kurzstapelspinnerei. Die Stufe K stellt die Karderie dar, die Stufe S die Kardenspei­sung, die Stufe M eine Mischoperation und die Stufe B die Ballenabtragung. Es können auch andere Stufen vor­gesehen werden, z.B. eine zusätzliche Reinigungsstufe zwischen der Ballenabtragung und dem Mischen. Die ganze Anlage ist von einem Leitrechner uP gesteuert, wobei ein die Gesamtproduktion der Karderie darstel­lendes Steuersignal q gewonnen und an den Leitrechner µP geliefert wird, so dass Letzterer die entsprechen­de Produktion jeder den Karden vorgeschalteten Stufe über entsprechende Leitungen s, m, b bestimmen kann. Dadurch wird der Materialfluss MF1, MF2, MF3 zwischen den verschiedenen Stufen gesteuert. Es können auch Rückkoppelungen r zwischen den Stufen vorgesehen wer­den, so dass jede vorgeschaltete Stufe ihre Produk­tion anhand von zwei Signalen bestimmt, nämlich einem Signal vom Leitrechner µP und einem Signal von der un­mittelbar nachgeschalteten Stufe. Diese Anordnung ist wohlbekannt und kann entweder kontinuierlich oder dis­kontinuierlich arbeiten, wie schon einleitend be­schrieben wurde.Fig. 1 shows four processing stages of the blowroom / opener of a short batch spinning mill. Level K represents the carding machine, level S the card feed, level M a mixing operation and level B the bale removal. Other stages can also be provided, for example an additional cleaning stage between bale removal and mixing. The entire system is controlled by a master computer uP, a control signal q representing the total production of the card is obtained and supplied to the master computer µP, so that the latter can determine the corresponding production of each stage upstream of the cards via corresponding lines s, m, b. This controls the material flow MF1, MF2, MF3 between the different stages. Feedback r between the stages can also be provided, so that each upstream stage determines its production on the basis of two signals, namely one Signal from the host computer µP and a signal from the immediately downstream stage. This arrangement is well known and can operate either continuously or discontinuously, as previously described.

Eine Produktionsänderung in einer vorgeschalteten Stu­fe wird normalerweise durch Änderung einer Walzendreh­zahl, einer Fördergeschwindigkeit oder einer "Bearbei­tungstiefe" (z.B. die Abtragtiefe eines Ballenöff­ners) durchgeführt. Dies bedeutet aber jedesmal eine Änderung der "spezifischen Produktion", d.h. der Durchflussmenge (P) pro Zeiteinheit (h) pro Längen­einheit (L) der "Verarbeitungsbreite". Letzterer Begriff wird nun anhand der Fig. 2 näher erläutert werden.A production change in an upstream stage is usually carried out by changing a roller speed, a conveying speed or a "processing depth" (e.g. the removal depth of a bale opener). However, this always means a change in the "specific production", i.e. the flow rate (P) per unit time (h) per unit length (L) of the "processing width". The latter term will now be explained in more detail with reference to FIG. 2.

Fig. 2 zeigt schematisch eine Materialvorlage V und eine Arbeitswalze W einer Arbeitsstelle. Die Walze W hat normalerweise eine vorbestimmte Arbeitslänge L, welche z.B. mit einer Garnitur oder mit Nasen oder Zähnen versehen ist, um Fasern über die ganze Länge L verarbeiten zu können. Die Vorlage V hat normalerwei­se eine entsprechende Breite B (B = L), so dass Fa­sern über die ganze Länge L an die Walze W geliefert werden. Die Technologie (Faserbearbeitung) hängt von der Drehzahl der Walze W, ihrer Garnitur, der (vorbe­stimmten) Dicke t der Vorlage V und der Faserdichte in der Vorlage ab. Eine notwendige Produktionsände­rung wird normalerweise durch Änderung der Walzendreh­zahl bewirkt. Da aber die Garniturart, Vorlagedicke und Vorlagedichte nicht entsprechend geändert werden können, bedeutet dies beim konventionellen Verfahren eine Technologie- (sprich Qualitäts-) Änderung. Ge­mäss dieser Erfindung wird vorgeschlagen, dass eine Produktionsänderung durch eine Änderung der effekti­ven Länge L und/oder der effektiven Breite B durchge­führt wird, wobei alle anderen Parameter konstant ge­halten werden können und insbesondere die Durchfluss­menge pro Stunde pro Längeneinheit der Arbeitswalze W konstant gehalten werden kann.Fig. 2 shows schematically a material template V and a work roll W of a job. The roller W normally has a predetermined working length L, which is provided, for example, with a clothing or with noses or teeth in order to be able to process fibers over the entire length L. The template V normally has a corresponding width B (B = L), so that fibers are supplied to the roller W over the entire length L. The technology (fiber processing) depends on the speed of the roller W, its clothing, the (predetermined) thickness t of the template V and the fiber density in the template. A necessary change in production is usually effected by changing the roller speed. However, since the clothing type, template thickness and template density cannot be changed accordingly, this means a change in technology (i.e. quality) in the conventional process. According to this invention it is proposed that a Production change is carried out by changing the effective length L and / or the effective width B, all other parameters can be kept constant and in particular the flow rate per hour per unit length of the work roll W can be kept constant.

Fig. 2 zeigt schematisch durch gestrichelte Linien zwei Möglichkeiten zur Veränderung der Produktion auf diese Weise, nämlich eine "Ausbreitung" bzw. "Ein­engung" der Vorlagenbreite, z.B. zwischen den Werten B und B1, und eine Verlängerung bzw. Abkürzung der Ar­beitslänge L durch Zusammenstellung der Walze W aus nebeneinanderliegenden, individuell antreibbaren Wal­zenteilen Wl bis W4.Fig. 2 shows schematically by dashed lines two possibilities for changing the production in this way, namely a "spreading" or "narrowing" of the original width, e.g. between the values B and B1, and an extension or abbreviation of the working length L by assembling the roller W from adjacent, individually drivable roller parts W1 to W4.

Normalerweise wird es nicht sinnvoll sein, eine Ände­rung der Arbeitslänge L durchzuführen ohne eine ent­sprechende Änderung der Vorlagenbreite B , weil sonst unter bestimmten Betriebsverhältnissen Randteile der Vorlage V nicht bearbeitet werden, was sich auch nach­teilig auswirken könnte.Normally, it will not make sense to change the working length L without a corresponding change in the original width B, because otherwise, under certain operating conditions, marginal parts of the original V will not be processed, which could also have a disadvantageous effect.

Die Erfindung ist nicht auf die Anwendung im Zusammen­hang mit Arbeitsorganen in der Form von Walzen einge­schränkt und auch nicht auf eine Vorlage in der Form einer Watte. In einer Reinigungsstelle, wo die Fasern in der Form von frei fliegenden Flocken durch die Ma­schine transportiert werden, könnte auch die effekti­ve Arbeitsbreite der Maschine gemäss dieser Erfindung geändert werden.The invention is not restricted to the use in connection with work organs in the form of rollers and also not to a template in the form of a cotton wool. In a cleaning station where the fibers are transported through the machine in the form of free-flying flakes, the effective working width of the machine could also be changed according to this invention.

Claims (7)

1. Ein Verfahren zur Durchführung einer kontrol­lierbaren Aenderung der Produktion einer faserverarbeitenden Maschine dadurch gekenn­zeichnet, dass die Produktionsänderung durch eine Aenderung der Verarbeitungsbreite der Maschine bewerkstelligt wird.1. A method for carrying out a controllable change in the production of a fiber processing machine, characterized in that the production change is brought about by a change in the processing range of the machine. 2. Ein Verfahren gemäss Anspruch 1 dadurch ge­kennzeichnet, dass bei einer Aenderung der Gesamtproduktion der Maschine, die spezifische Produktion im wesentlichen kon­stant gehalten wird.2. A method according to claim 1, characterized in that when the total production of the machine changes, the specific production is kept essentially constant. 3. Ein Verfahren gemäss Anspruch 1 oder 2 da­durch gekennzeichnet, dass die Aenderung ge­steuert oder geregelt wird.3. A method according to claim 1 or 2, characterized in that the change is controlled or regulated. 4. Ein Verfahren gemäss Anspruch 3 dadurch ge­kennzeichnet, dass die Maschine eine watte­verarbeitende Kardenspeisemaschine ist und ein Steuer- bzw. Regelsignal von den Karden gewonnen wird.4. A method according to claim 3, characterized in that the machine is a cotton-processing card feeding machine and a control signal is obtained from the cards. 5. Eine faserverarbeitende Vorrichtung, dadurch gekennzeichnet, dass Mittel zur kontrollier­ten Veränderung der Verarbeitungsbreite die­ser Vorrichtung vorhanden sind.5. A fiber processing device, characterized in that means are provided for controlled change in the processing range of this device. 6. Eine Vorrichtung gemäss Anspruch 5 dadurch gekennzeichnet, dass die Mittel ein Arbeits­organ variabler effektiver Länge umfassen.6. A device according to claim 5, characterized in that the means comprise a working element of variable effective length. 7. Eine Vorrichtung gemäss Anspruch 5 oder 6 dadurch gekennzeichnet, dass die Mittel eine Speisevorrichtung zur Speisung einer Vorlage variabler Breite umfassen.7. A device according to claim 5 or 6, characterized in that the means comprise a feed device for feeding a template of variable width.
EP88115800A 1987-10-07 1988-09-26 Production control Expired - Lifetime EP0312805B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3911/87 1987-10-07
CH391187 1987-10-07

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EP0312805A1 true EP0312805A1 (en) 1989-04-26
EP0312805B1 EP0312805B1 (en) 1991-11-21

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US (1) US4928353A (en)
EP (1) EP0312805B1 (en)
JP (1) JPH01118674A (en)
KR (1) KR890006878A (en)
CN (1) CN1032823A (en)
DE (1) DE3866330D1 (en)
ES (1) ES2028968T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
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US6408221B1 (en) 1989-05-23 2002-06-18 Maschinenfabrik Reiter Ag Method of and installation for optimizing the process of cleaning cotton

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EP0399315A1 (en) * 1989-05-23 1990-11-28 Maschinenfabrik Rieter Ag Optimal cleaning operation
US6408221B1 (en) 1989-05-23 2002-06-18 Maschinenfabrik Reiter Ag Method of and installation for optimizing the process of cleaning cotton

Also Published As

Publication number Publication date
US4928353A (en) 1990-05-29
DE3866330D1 (en) 1992-01-02
KR890006878A (en) 1989-06-16
JPH01118674A (en) 1989-05-11
EP0312805B1 (en) 1991-11-21
ES2028968T3 (en) 1992-07-16
CN1032823A (en) 1989-05-10

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