EP0479983B1 - Process for optimizing yarn quality - Google Patents
Process for optimizing yarn quality Download PDFInfo
- Publication number
- EP0479983B1 EP0479983B1 EP91907547A EP91907547A EP0479983B1 EP 0479983 B1 EP0479983 B1 EP 0479983B1 EP 91907547 A EP91907547 A EP 91907547A EP 91907547 A EP91907547 A EP 91907547A EP 0479983 B1 EP0479983 B1 EP 0479983B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fibre
- accordance
- bale
- bales
- stripping
- 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.)
- Expired - Lifetime
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Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G99/00—Subject matter not provided for in other groups of this subclass
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G13/00—Mixing, e.g. blending, fibres; Mixing non-fibrous materials with fibres
Definitions
- the invention relates to a method for optimizing and keeping the fiber quality constant in the automated mixing of bales with textile fibers of different quality, according to the preamble of claim 1.
- the invention seeks to remedy this.
- the invention has for its object to provide a method for optimizing and maintaining the fiber quality in the automated mixing of bales with textile fibers of different quality, which enables the current mixing result to be continuously checked and corrected for one or more predetermined target values.
- the invention achieves the stated object with a method which has the features of claim 1 and a device for carrying out the method which has the features of claim 11.
- the quality of the fibers of a bale is measured not only once, as in the methods according to the prior art, but each bale is measured layer by layer, as a result of which variations in quality within an individual bale are better taken into account.
- the device for carrying out the method according to the invention shown schematically in FIG. 1, essentially consists of a bale removal device 2 with a fiber removal member 4 movably arranged along a transport path 3, a sampling device 6 attached to the removal member 4, which is arranged via a fiber pattern transport system 13, e.g. in the form of a mechanical conveyor belt or a pneumatic pipe transport system, is connected to an automatic measuring and control device 5.
- the removal member 4 is connected to the mixer 7 via a fiber transport system 14.
- the bales to be mixed with textile fibers of different quality 1 a , ... 1 k , ... 1 n are arranged on both sides along the transport path 3 of the fiber removal member 4 of the bale removal device 2.
- the fiber ablation element 4 is shifted from the bale by the measuring and control device 5 in order to remove the quantities and qualities of different fibers required for a desired fiber quality from the individual bales 1 a , ... 1 k , ... 1 n and feed the mixer 7.
- a fiber sample is taken from the processed bale 1 k by means of the sampling device 6 attached to the removal member 4 transported via the fiber pattern transport system 13 to the automatic measuring and control device 5 and analyzed there.
- the fiber sample to be analyzed is preferably taken from the surface of the processed bale 1 k facing the removal member 4.
- the fiber measuring lines (HVI) from Spinlab Inc. or Motion Control Inc. can be cited as examples of textile analysis devices typically used in measuring and control device 5.
- these analysis devices must be completely automated, so that the sample preparation and the sample transport also take place fully automatically.
- the adaptation of these devices known in textile analysis to a fully automated operation, as takes place in the method according to the invention, can be carried out by the average person skilled in the art with the usual knowledge and is therefore not described in more detail here.
- the quality parameters of the individual bales 1 a , ... 1 k , ... 1 n can either be determined in a conventional manner before the mixing operation and fed into the memory 8 of the measuring and control device 5.
- a sample can be taken from all the bales 1 a ,... 1 k ,... 1 n by means of the sampling device 6 and fed to the measuring and control device 5, and the data determined and analyzed be stored in memory 8.
- the removal device 4 is now controlled in such a way that the measuring and control device 5 is based on the stored quality parameters of the individual bales 1 a ,... 1 k ,... 1 n , and the desired target value for the fiber mixture to be achieved
- a removal program is calculated from suitable algorithms present in the memory 8 and can be executed by suitable control of the removal member 4 via the data line 9.
- the removal device 4 is preferably controlled via a digital interface 12 (typically RS232, V24, RS485 or LAN), which specifies the location and the respective height of the individual bales 1 a ,... 1 k ,... 1 n Amount of the fiber material to be transferred.
- a digital interface 12 typically RS232, V24, RS485 or LAN
- the superiority of the method according to the invention is now based on the fact that the quality parameters of the individual bales 1 a ,... 1 k ,... 1 n entered in the memory 8 of the measuring and control device 5 can be continuously updated, so that quality differences in detail Bales can be fully captured and taken into account in the mixing algorithm.
- the optimization of the individual fiber parameters takes place in such a way that the measuring and control device 5 calculates the theoretical fiber quality of the continuously achieved mixture on the basis of the continuously determined actual fiber qualities and fiber quantities, which have this quality, and with predetermined target values (maximum limits 10 and Minimum limit 11) is compared and, if necessary, corrected by changing the originally calculated removal program (see FIG. 2).
- the continuously performed comparative measurements of the fiber parameters can be shown optically (see FIG. 2) and / or processed into acoustic signals, which then enable manual control of the bale removal device 2. However, it is also possible to use these comparison measurements for the automatic control of the bale removal device 2.
- the measuring and control device 5 can also be used to monitor and control a plurality of bale removal devices 2 (two removal lines are shown by way of example in FIG. 2).
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zur Optimierung und Konstanthaltung der Faserqualität bei der automatisierten Mischung von Ballen mit textilen Fasern unterschiedlicher Qualität, gemäss dem Oberbegriff des Anspruchs 1.The invention relates to a method for optimizing and keeping the fiber quality constant in the automated mixing of bales with textile fibers of different quality, according to the preamble of claim 1.
Automatische Ballenabtragmaschinen sind bereits bekannt (z.B. Vom Typ UNIFLOC der Firma Rieter AG). Nachteilig ist aber deren fehlende Steuerung während des einmal programmierten Abtrag- und Mischvorgangs. Die Überprüfung ob eine gewünschte Faserqualität erreicht worden ist, kann erst nach erfolgter Mischung (von beispielsweise bis zu 100 Ballen) erfolgen und lässt somit keine Korrektur während des Mischvorgangs zu.Automatic bale removal machines are already known (e.g. of the UNIFLOC type from Rieter AG). The disadvantage, however, is their lack of control during the removal and mixing process that has been programmed. The check whether a desired fiber quality has been achieved can only be carried out after the mixing has been carried out (for example up to 100 bales) and thus does not permit any correction during the mixing process.
Hier will die Erfindung Abhilfe schaffen. Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Optimierung und Konstanthaltung der Faserqualität bei der automatisierten Mischung von Ballen mit textilen Fasern unterschiedlicher Qualität zu schaffen, welches eine laufende Überprüfung des aktuellen Mischresultats und Korrektur auf einen, bzw. mehrere vorgegebene Sollwerte ermöglicht.The invention seeks to remedy this. The invention has for its object to provide a method for optimizing and maintaining the fiber quality in the automated mixing of bales with textile fibers of different quality, which enables the current mixing result to be continuously checked and corrected for one or more predetermined target values.
Die Erfindung löst die gestellte Aufgabe mit einem Verfahren, welches die Merkmale des Anspruchs 1 aufweist, sowie einer Vorrichtung zur Durchführung des Verfahrens, welche die Merkmale des Anspruchs 11 aufweist.The invention achieves the stated object with a method which has the features of claim 1 and a device for carrying out the method which has the features of
Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass dank des erfindungsgemässen Verfahrens eine "on-line" Optimierung bei der automatisierten Mischung von Ballen mit textilen Fasern unterschiedlicher Qualität erfolgt.
Ballen schlechter Qualität und Ballen guter Qualität können dabei auf kontrollierte Weise - aufgrund von gerechneten und gemessenen Werten - zu einem Fasermaterial mittlerer Qualität gemischt werden. Der Mittelwert der Mischung bleibt konstant und variiert nicht mit dem momentanen Mittelwert aller Ballen, was schliesslich zu einer konstanten Faserqualität führt.The advantages achieved by the invention can essentially be seen in the fact that, thanks to the method according to the invention, "on-line" optimization takes place in the automated mixing of bales with textile fibers of different quality.
Bales of poor quality and bales of good quality can be mixed in a controlled manner - based on calculated and measured values - to form a medium-quality fiber material. The mean value of the mixture remains constant and does not vary with the current mean value of all bales, which ultimately leads to a constant fiber quality.
Beim erfindungsgemässen Verfahren wird die Qualität der Fasern eines Ballens nicht nur einmal gemessen, wie bei den Verfahren gemäss dem Stand der Technik, sondern jeder Ballen wird Schicht um Schicht gemessen, wodurch Streuungen der Qualität innerhalb eines einzelnen Ballens besser berücksichtigt werden.In the method according to the invention, the quality of the fibers of a bale is measured not only once, as in the methods according to the prior art, but each bale is measured layer by layer, as a result of which variations in quality within an individual bale are better taken into account.
Ein Ausführungsbeispiel der Erfindung, welches zugleich das Funktionsprinzip erläutert, ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.
- Fig. 1 zeigt eine schematische Darstellung einer Vorrichtung zur Durchführung des erfindungsgemässen Verfahrens; und
- Fig. 2 zeigt eine graphische Darstellung des aktuellen, mittels des erfindungsgemässen Verfahrens erzielten Parameterwertes der Mischung.
- Fig. 1 shows a schematic representation of an apparatus for performing the method according to the invention; and
- 2 shows a graphic representation of the current parameter value of the mixture achieved by means of the method according to the invention.
Die in Fig. 1 schematisch dargestellte Vorrichtung zur Durchführung des erfindungsgemässen Verfahrens besteht im wesentlichen aus einer Ballenabtragvorrichtung 2 mit einem längs eines Transportweges 3 beweglich angeordneten Faser-Abtragorgans 4, einer am Abtragorgan 4 angebrachten Probeentnahmevorrichtung 6, die über ein Fasermuster-Transportsystems 13, z.B. in Form eines mechanischen Förderbandes oder eines pneumatischen Rohrtransportsystems, mit einem automatischen Mess- und Steuergerät 5 verbunden ist.
Das Abtragorgan 4 ist über ein Faser-Transportsystem 14 mit dem Mischer 7 verbunden. Die zu mischenden Ballen mit textilen Fasern unterschiedlicher Qualität 1a,...1k,...1n sind beidseitig längs des Transportweges 3 des Faser-Abtragorgans 4 der Ballenabtragvorrichtung 2 angeordnet.The device for carrying out the method according to the invention, shown schematically in FIG. 1, essentially consists of a
The
Das Faser-Abtragorgan 4 wird dabei vom Mess- und Steuergerät 5 von einem Ballen zum anderen verschoben um die für eine gewünschte Faserqualität erforderlichen Mengen und Qualitäten unterschiedlicher Fasern von den einzelnen Ballen 1a,...1k,...1n abzutragen und dem Mischer 7 zuzuführen.The
Anlässlich der Abtragung der Fasern wird mittels der am Abtragorgan 4 angebrachten Probeentnahmevorrichtung 6 dem jeweils bearbeiteten Ballen 1k eine Faserprobe entnommen und über das Fasermuster-Transportsystems 13 zum automatischen Mess- und Steuergerät 5 transportiert und dort analysiert. Die zu analysierende Faserprobe wird vorzugsweise an der dem Abtragorgan 4 zugewandten Oberfläche des jeweils bearbeiteten Ballens 1k entnommen.On the occasion of the removal of the fibers, a fiber sample is taken from the processed bale 1 k by means of the sampling device 6 attached to the
Als Beispiele für typischerweise im Mess- und Steuergerät 5 zu verwendende textile Analysegeräte können die Fasermessstrassen (HVI) der Firmen Spinlab Inc. oder Motion Control Inc. angeführt werden. Diese Analysegeräte müssen allerdings, um für das erfindungsgemässe Verfahren Verwendung finden zu können, vollständig automatisiert sein, so dass auch die Mustervorbereitung und der Mustertransport vollautomatisch erfolgen. Die Anpassung dieser in der Textilanalytik bekannten Geräte an einen vollautomatisierten Betrieb, wie er im erfindungsgemässen Verfahren stattfindet, kann vom durchschnittlichen Fachmann mit den üblichen Kenntnissen durchgeführt werden und ist deshalb hier nicht näher beschrieben.The fiber measuring lines (HVI) from Spinlab Inc. or Motion Control Inc. can be cited as examples of textile analysis devices typically used in measuring and
Die Qualitätsparameter der einzelnen Ballen 1a,...1k,...1n können erstmals entweder vor dem Mischvorgang in konventioneller Weise ermittelt und in den Speicher 8 des Mess- und Steuergeräts 5 gefüttert werden. Es kann aber auch in einem ersten Lauf des Abtragorgans 4 über sämtliche Ballen 1a,...1k,...1n je ein Muster mittels der Probeentnahmevorrichtung 6 entnommen und dem Mess- und Steuergerät 5 zugeführt, analysiert und die ermittelten Daten im Speicher 8 abgelegt werden.For the first time, the quality parameters of the individual bales 1 a , ... 1 k , ... 1 n can either be determined in a conventional manner before the mixing operation and fed into the
Damit die Vorrichtung in Betrieb genommen werden kann muss lediglich noch die gewünschte Faserqualität der herzustellenden Fasermischung (in Form von Maximal- und Minimalwerten) in den Speicher 8 des Mess- und Steuergeräts 5 eingegeben werden.So that the device can be put into operation, only the desired fiber quality of the fiber mixture to be produced (in the form of maximum and minimum values) has to be entered into the
Die Steuerung des Abtragorgans 4 erfolgt nun in der Weise, dass das Mess- und Steuergeräts 5 aufgrund der gespeicherten Qualitätsparameter der einzelnen Ballen 1a,...1k,...1n, sowie des gewünschten Sollwerts für die zu erzielende Fasermischung aufgrund von im Speicher 8 vorhandenen, geeigneten Algorithmen ein Abtrag-Programm errechnet und dieses durch geeignete Steuerung des Abtragorgans 4 über die Datenleitung 9 ausführen lässt.The
Ein solcher Algorithmus kann beispielsweise folgende Schritte umfassen:
- a) Berechnung der Mengenanteile jedes Ballens um die geforderten Sollwerte zu erreichen;
- b) Fasern abtragen mittels
Abtragorgan 4; - c) Fasermuster entnehmen mittels Probeentnahmevorrichtung 6;
- d) Kontrolle ob Werte des Fasermusters mit denjenigen von in Schritt a) verwendeten übereinstimmen. Wenn nicht: Werte im
Speicher 8 des Mess- undSteuergeräts 5 korrigieren und wieder bei Schritt a) beginnen; - e) Wenn am Ausgang des Mischers 7 eine
weitere Probeentnahmevorrichtung 16 installiert ist, in grösseren Abständen Fasermuster entnehmen und mit den Sollwerten vergleichen. Stimmen diese nicht überein, so wird die Berechnungsart von Schritt a) korrigiert und Schritt a) neu ausgeführt.
- a) Calculation of the proportions of each bale to achieve the required target values;
- b) remove fibers by means of
removal member 4; - c) take fiber samples by means of a sampling device 6;
- d) Check whether the values of the fiber pattern match those used in step a). If not: correct the values in the
memory 8 of the measuring andcontrol device 5 and start again at step a); - e) If a
further sampling device 16 is installed at the outlet of the mixer 7, take fiber samples at larger intervals and with the desired values to compare. If these do not match, the calculation method of step a) is corrected and step a) is carried out again.
Vorzugsweise erfolgt die Steuerung des Abtragorgans 4 über eine digitale Schnittstelle 12 (typischerweise RS232, V24, RS485 oder LAN), welche den Standort und die jeweilige Höhe der einzelnen Ballen 1a,...1k,...1n sowie die vorausberechnete Menge des abzutragenden Fasermaterials überträgt.The
Die Überlegenheit des erfindungsgemässen Verfahrens liegt nun darin begründet, dass die im Speicher 8 des Mess- und Steuergeräts 5 eingegebenen Qualitätsparameter der einzelnen Ballen 1a,...1k,...1n laufend nachgeführt werden können, so dass Qualitätsunterschiede im einzelnen Ballen voll erfasst und im Mischungs-Algorithmus berücksichtigt werden können.The superiority of the method according to the invention is now based on the fact that the quality parameters of the individual bales 1 a ,... 1 k ,... 1 n entered in the
Dabei ist es möglich nicht nur einen einzigen, sondern mehrere Faserparameter, vorzugsweise Länge, Dicke, Reifegrad und Festigkeit der Einzelfasern, zu analysieren und zu überwachen.It is possible to analyze and monitor not just a single but several fiber parameters, preferably the length, thickness, degree of maturity and strength of the individual fibers.
Die Optimierung der einzelnen Faserparameter erfolgt derart, dass das Mess- und Steuergerät 5 aufgrund der laufend ermittelten tatsächlichen Faserqualitäten und Fasermengen, welche diese Qualität aufweisen, mittels geeigneter Algorithmen die theoretische Faserqualität der laufend erzielten Mischung errechnet und mit vorgegebenen Sollwerten (Maximallimite 10 und Minimallimite 11) vergleicht und falls notwendig durch Abänderung des ursprünglich errechneten Abtrag-Programms korrigiert (siehe Fig. 2).
Die laufend durchgeführten Vergleichsmessungen der Faserparameter können optisch dargestellt (siehe Fig. 2) und/oder zu akustischen Signalen verarbeitet werden, welche dann eine manuelle Steuerung der Ballenabtragvorrichtung 2 ermöglichen. Es ist aber auch möglich diese Vergleichsmessungen zur automatischen Steuerung der Ballenabtragvorrichtung 2 zu verwenden.The optimization of the individual fiber parameters takes place in such a way that the measuring and
The continuously performed comparative measurements of the fiber parameters can be shown optically (see FIG. 2) and / or processed into acoustic signals, which then enable manual control of the
Sowohl die manuelle, als auch die automatische Steuerung des Mischvorgangs erlaubt eine laufende Optimierung des Betriebs der Ballenabtragvorrichtung 2.Both the manual and the automatic control of the mixing process allow ongoing optimization of the operation of the
Das Mess- und Steuergerät 5 kann auch dazu benutzt werden mehrere Ballenabtragvorrichtungen 2 (in Fig. 2 sind beispielhaft zwei Abtragstrassen dargestellt) zu überwachen und zu steuern.The measuring and
Claims (14)
- Method for optimizing and maintaining a constant level of fibre quality in the automated mixing of bales of textile fibres of differing quality characterized in thata) bales of differing quality (1a ... 1k ... 1n) are incorporated in the transport path (3) of a fibre flock stripping element (4) of a bale stripping device (2),b) a fibre specimen is taken from each of the bales (1k) processed by the stripping element (4) and automatically analysed in a measurement and control device (5),c) the analysis values measured in step b) are continuously compared with set-point values by a program in the measurement and control device (5), andd) the comparison measurements continuously executed in step c) are used to maintain the mix values by instructing the bale stripping device (2) to take appropriate amounts of textile fibre material from the appropriate bales of differing quality (1a ... 1k ... 1n).
- Method in accordance with claim 1 characterized in that the fibre specimen is taken from the surface facing the stripping element (4) of the bale currently being processed (1k).
- Method in accordance with claim 1 or 2 characterized in that the differing quality parameters of the individual bales (1a ... 1k ... 1n) are stored in a memory (8) in the measurement and control device (5) before the start of the process.
- Method in accordance with one of the claims 1 to 3 characterized in that the analysis of the fibre specimens taken embraces the determination of a number of fibre properties, preferably the length and thickness of the individual fibres.
- Method in accordance with one of the claims 1 to 4 characterized in that the comparison measurements executed continuously in step c) are displayed optically and/or processed to give acoustic signals which permit the manual control of the bale stripping device (2).
- Method in accordance with one of the claims 1 to 4 characterized in that the comparison measurements executed continuously in step c) are used for automatic control of the bale stripping device (2).
- Method in accordance with one of the claims 1 to 6 characterized in that control of the stripping element (4) is effected through a digital interface (12) which incorporates the location and the current height of the individual bales (1a ... 1k ... 1n) and the previously calculated quantity of fibre material to be stripped.
- Method in accordance with one of the claims 1 to 7 characterized in that the analysis values measured in step b) are compared with a maximum limit (10) and a minimum limit (11).
- Method in accordance with one of the claims 1 to 8 characterized in that the fibre material taken by the stripping element (4) from the current bale (1k) is supplied by a fibre transport system 14 to a mixer (7) where it is mixed.
- Method in accordance with one of the claims 1 to 9 characterized in that fibre specimens are taken from the fibre mix created in the mixer (7) by means of a sampling device (16) mounted on the output from the mixer (7) and passed to the measurement and control device (5) for analysis and evaluation.
- Device for the implementation of the method in accordance with one of the claims 1 to 10 with a bale stripping device (2) with a stripping element (4) mounted to allow movement along a transport path (3), characterized in that it incorporates a sampling device (6) mounted on the stripping element (4) and an automatic measurement and control device (5).
- Device in accordance with claim 11 characterized in that a fibre specimen transport system 13, preferably in the form of a mechanical conveyor belt or a pneumatic pipe transport system is provided between the sampling device (6) and the automatic measurement and control device (5).
- Device in accordance with one of the claims 10 to 12 characterized in that a mixer (7) is additionally provided to which the fibre material taken from the current bale (1k) by the stripping element (4) is supplied via a fibre transport system (14).
- Device in accordance with claim 13 characterized in that a further sampling device (16) is provided at the output from the mixer (7).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1393/90 | 1990-04-25 | ||
| CH1393/90A CH681228A5 (en) | 1990-04-25 | 1990-04-25 | |
| PCT/CH1991/000096 WO1991016480A1 (en) | 1990-04-25 | 1991-04-23 | Process for optimizing yarn quality |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0479983A1 EP0479983A1 (en) | 1992-04-15 |
| EP0479983B1 true EP0479983B1 (en) | 1995-01-11 |
Family
ID=4209381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91907547A Expired - Lifetime EP0479983B1 (en) | 1990-04-25 | 1991-04-23 | Process for optimizing yarn quality |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5210909A (en) |
| EP (1) | EP0479983B1 (en) |
| JP (1) | JP2961116B2 (en) |
| CH (1) | CH681228A5 (en) |
| DE (1) | DE59104227D1 (en) |
| WO (1) | WO1991016480A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4415796B4 (en) * | 1994-05-05 | 2008-05-08 | TRüTZSCHLER GMBH & CO. KG | Bale removal method and device for removing fiber bales erected in at least one row |
| DE19722582A1 (en) * | 1996-08-08 | 1998-02-12 | Truetzschler Gmbh & Co Kg | Method and device in a spinning preparation plant (blow room) for the detection and evaluation of foreign substances |
| BR112018006948B1 (en) * | 2015-10-09 | 2022-07-19 | Ww Systems Ltda | METHOD TO FORM A HOMOGENIZED MIXTURE OF COTTON BALES FOR A SPINNING PROCESS |
| DE102015122807A1 (en) * | 2015-12-23 | 2017-06-29 | Temafa Maschinenfabrik Gmbh | Fiber processing plant and method for opening and mixing fiber material in a fiber processing plant |
| EP3999678A4 (en) * | 2019-07-16 | 2023-08-16 | Czinner, Robert | System, controller, and method for decortication processing |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1685596B2 (en) * | 1966-12-24 | 1978-06-29 | Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt | Working method and device for putting together fiber blends |
| US4100651A (en) * | 1977-06-22 | 1978-07-18 | Aldrich Machine Works | Apparatus and method for removing and blending fibers from a plurality of fiber bales |
| SU974196A1 (en) * | 1981-03-27 | 1982-11-15 | Ташкентское Научно-Производственное Объединение "Сигнал" | Raw cotton acceptance and checking method |
| DE3335792C2 (en) * | 1983-10-01 | 1985-11-28 | Trützschler GmbH & Co KG, 4050 Mönchengladbach | Device for determining the gaps between bales in a row of bales |
| DE3335763A1 (en) * | 1983-10-01 | 1985-04-18 | Trützschler GmbH & Co KG, 4050 Mönchengladbach | METHOD AND DEVICE FOR FEEDING FIBER MATERIAL TO A MULTIPLE NUMBER OF FIBER PROCESSING DEVICES |
| GB8524304D0 (en) * | 1985-10-02 | 1985-11-06 | Rieter Ag Maschf | Flock delivery systems |
| AU629231B2 (en) * | 1988-09-06 | 1992-10-01 | Maschinenfabrik Rieter A.G. | A method of blending textile fibres |
| JPH0351321A (en) * | 1989-07-17 | 1991-03-05 | Ohara Tekkosho:Kk | Device for weighting raw cotton and feeding it to blowing machine |
-
1990
- 1990-04-25 CH CH1393/90A patent/CH681228A5/de not_active IP Right Cessation
-
1991
- 1991-04-23 JP JP3506721A patent/JP2961116B2/en not_active Expired - Fee Related
- 1991-04-23 DE DE59104227T patent/DE59104227D1/en not_active Expired - Fee Related
- 1991-04-23 US US07/784,420 patent/US5210909A/en not_active Expired - Lifetime
- 1991-04-23 WO PCT/CH1991/000096 patent/WO1991016480A1/en active IP Right Grant
- 1991-04-23 EP EP91907547A patent/EP0479983B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0479983A1 (en) | 1992-04-15 |
| JP2961116B2 (en) | 1999-10-12 |
| US5210909A (en) | 1993-05-18 |
| JPH04506842A (en) | 1992-11-26 |
| DE59104227D1 (en) | 1995-02-23 |
| WO1991016480A1 (en) | 1991-10-31 |
| CH681228A5 (en) | 1993-02-15 |
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