EP0044408A1 - Procédé de surveillance d'une installation pour le mélange de fibres textiles et dispositif pour la mise en oeuvre de ce procédé - Google Patents

Procédé de surveillance d'une installation pour le mélange de fibres textiles et dispositif pour la mise en oeuvre de ce procédé Download PDF

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Publication number
EP0044408A1
EP0044408A1 EP81104610A EP81104610A EP0044408A1 EP 0044408 A1 EP0044408 A1 EP 0044408A1 EP 81104610 A EP81104610 A EP 81104610A EP 81104610 A EP81104610 A EP 81104610A EP 0044408 A1 EP0044408 A1 EP 0044408A1
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EP
European Patent Office
Prior art keywords
fibers
fiber
during
switch
quantity measuring
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.)
Granted
Application number
EP81104610A
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German (de)
English (en)
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EP0044408B1 (fr
Inventor
Rudolf Wildbolz
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.)
Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to AT81104610T priority Critical patent/ATE13448T1/de
Publication of EP0044408A1 publication Critical patent/EP0044408A1/fr
Application granted granted Critical
Publication of EP0044408B1 publication Critical patent/EP0044408B1/fr
Expired legal-status Critical Current

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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
    • D01G7/00—Breaking or opening fibre bales
    • 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 present invention relates to a method for monitoring a mixing plant for textile staple fibers of different types, in which each type is conveyed from a fiber metering unit to a mixing device and the fibers mixed in this are fed to a storage device, and in which the feed times during the The amount of fiber supplied to the storage device is somewhat larger than the amount of fiber taken from this storage device and as a result the fiber supply to the storage device is interrupted during repetitive time intervals, the metering units supplying fibers individually and in succession during such time intervals, the latter for monitoring the metering units in the normal way Mixed mode of conveyed fiber quantity can be used.
  • Fiber mixtures which consist of fibers of different types or types.
  • it can be a mixture of natural and synthetic fibers are fibers of different colors or different quality. It is important that the fiber mixtures, as well as threads spun or twisted from them, are of a uniform quality.
  • the fibers or fiber flakes emerging from the mixing plant must have a mixing ratio which lies within clearly defined tolerance limits. If this is, for example, a source material for the manufacture of articles in the clothing industry, tolerance limits which have not been observed can mean a violation of legal regulations.
  • the already known monitoring methods in which the monitoring takes place during the time intervals during which the fiber supply to the storage or filling shaft is interrupted, have the disadvantage of relatively great inaccuracy.
  • the reason for this is that during the start-up and run-down phase of the conveyance, the amount of fiber conveyed by an individually working metering unit deviates greatly from the normally conveyed amount of fibers of constant value. If one wants to get rid of the inaccuracy caused by these deviations, the disadvantage of a longer measuring time has to be accepted. This means that more fiber material has to be used for the measurement operation and the measurements can be carried out less often. As a result, monitoring becomes worse and more expensive.
  • the individually operated dosing unit can be run for a relatively long time, so that during the start-up and run-down phase coming deviations from the amount of fibers of constant value are hardly significant. In this case, however, a standstill of the machine following the mixing system must be accepted during the monitoring process.
  • a sufficient accuracy of the mixing ratio should be ensured in a simple manner and the disadvantages mentioned should be eliminated in that the conveyed fibers are fed to a quantity measuring device and measured within such repeating time intervals, during which there is constant fiber conveyance.
  • the device for carrying out the method comprises a mixing system which comprises a plurality of fiber metering units and, arranged downstream of this, a mixing device and a store, the device having a first switch and a quantity measuring device. It is characterized in that a second switch is provided between the first switch and the quantity measuring device for optionally guiding fibers to the quantity measuring device.
  • the invention results in a very reliable and precise monitoring of different types of fibers or fiber flakes, so that the fiber quantities supplied by the fiber metering units to the mixing device can be dimensioned and kept constant exactly in accordance with prescribed values and thus the mixing ratio can be exactly maintained. Thanks to the much shorter measurement time, those with the mixed Fa to be eberwachungsvorgangs not stopped fibers to their further processing gespiesenen machines for performing the U, that is, the monitoring can be performed during the operation of these machines is normally on. In comparison with the method in which each layer has a single monitoring is performed, the individual U can be eberwachonne according to the present invention in much shorter time intervals performed. This gives the very essential advantages that deviations from target values are recognized earlier and that relatively short-term fluctuations can also be determined.
  • the device shown in FIG. 1 has two or more fiber metering units 11 (11.1 and 11.2), to which, as indicated by arrows 12, fiber material, which consists largely of fiber flakes but also contains individual fibers, is fed.
  • fiber material which consists largely of fiber flakes but also contains individual fibers.
  • the metering units 11 are designed in such a way that they continuously promote a constant and selectable amount of weight of fibers during operation per unit time. Fibers of a certain type are fed to each metering unit 11, fibers of different types reaching the different units 11.1 and 11.2. The amount of fibers conveyed by the different units 11 per unit time will generally be different.
  • An example of a practical application is, for example, a conveyance of 67% cotton in the metering unit 11.1 and a conveyance of 33% polyester in the metering unit 11.2, the percentages denoting the ratio by weight of the fiber quantities conveyed per unit of time.
  • two to four dosing units 11 are used at the same time.
  • a mixing device 13 Following the metering units 11 there is a mixing device 13 and after this a first switch 14. From the latter, in one continuous position of the switch 14, the fibers arrive at a store 15 and from there to subsequent further processing machines, for example cards 16.
  • the fibers are conveyed to a second switch 17 , through which they either reach a collecting container 18 in their continuous position or a quantity measuring device 19, for example a balance, in their switched position.
  • the arrangement with the parts 17, 18 and 19 is used to measure the fiber quantities conveyed by the fiber metering units 11 and is again detailed in FIG. 2 illustrated.
  • pneumatic conveying of the fibers by tubes is required.
  • the fiber webs designed as tubes 25 and 26 lead from the second switch 17 to the quantity measuring device 19 or to the receptacle 18.
  • the quantity measuring device 19 designed as a scale is constructed in such a way that the fibers fed to it can be weighed by means of a weighing element 27.
  • An evaluation device 30 is connected to the weighing member 27 via an electrical connection 29. It has a keypad 31 for entering information, an information output point 32 and a display point 33.
  • the memory 15 is provided with a signal device 20 which supplies a signal when the memory 15 is at a minimum and at a maximum filling level. Monitoring the fill level can e.g. by light barriers provided in the memory 15 or by the weight exerted by the fibers.
  • the signals of the device 20 are fed to a control device 34, which may be located in the evaluation device 30, for example.
  • one type of fiber is continuously fed to one of the fiber metering units 11. Of each of the D osierüen 11 conveyed fibers pass into the mixing unit 13 where they are mixed together. If the fibers, as assumed in this example, pneumatically by Pipes are transported, so you get in the tube supplied by the metering units 11 mixing by itself, so that it works as a mixing device. In normal operation, the switch 14 is set in such a way that the mixed fibers arrive at the store 15 and from there to the machines serving further processing, such as the card 16 for example.
  • the data desired for the production and the corresponding mixing ratio are entered into the evaluation device 30 and stored therein.
  • the fiber metering units 11 are stopped. This is followed by a rinsing time during which the fibers still present in the fiber webs are transported to the store 15. If a monitoring operation is now programmed, the switch 14 is switched from the continuous to the deflecting position and at the same time the unit to be monitored, for example the dosing unit 11.1, is switched on, so that only these fibers are supplied. The latter reach the collecting container 18 via the switches 14 and 17.
  • the switch 17 After a short running-in period, after which the corresponding fiber metering unit 11.1 has reached its normal production again, the switch 17 is positioned from the direct passage to the deflected passage, so that the fibers no longer to the receptacle 18, but to the quantity measuring device 19.
  • the duration of the fiber supply to the quantity measuring device 19 is determined by the data initially entered by means of the keypad 31. After this fiber supply to men Genmess owned 19 the switch 17 is switched back to direct passage towards the receptacle 18. At the same time, the individually operated fiber metering unit 11.1 is brought to a standstill.
  • the switch 14 is also reset to a passage running through to the store 15, whereby the system is again ready for normal operation. It is switched on again as soon as the signal indicating the minimum filling value of the memory 15 is sent by the signal device 20.
  • the material introduced into the quantity measuring device 19 can be weighed automatically, and the weight can be read off the display 33.
  • the weight of the fibers, which are introduced into the quantity measuring device 19 by the various units 11 during the monitoring processes, can also be printed continuously on an information strip which runs out at the information output point 32.
  • the process just described is illustrated for better clarity in FIG. 3.
  • the timing is in the abscissa direction.
  • the straight lines indicate that the facility in question is in operation.
  • the dosing units 11 and the cards 16 work during the normal mixing process (before the time t1).
  • the switch 14 is in the position (14d) which is continuous with the store 15.
  • the switch 14 After the stoppage of the Faserdosierillonen 11 remains during the first rinse time, which lasts from the time tl to time t2, the switch 14 in the memory 1 to 5 , Through position (14d).
  • the switch 14 is switched, as a result of which the fibers are guided towards the switch 17 in the deflected direction (14s).
  • the latter is set for direct passage (17d) to the container 18.
  • the unit 11.1. acts, put it back into operation.
  • the switch 17 is switched (17s), as a result of which the fibers reach the quantity measuring device 19.
  • the supply of fibers to the quantity measuring device 19 takes place in the partial area lying between the times t3 and t4 of the time interval lasting from the time t1 to the time t7.
  • the switch 17 is switched back to direct passage (17d) at time t4.
  • the metering unit 11.1 is switched off again, and the remaining fibers still present in the fiber channels are then washed away into the container 18, which is ended at time t6.
  • the metering units 11 are put into operation again and the switch 14 is switched back to direct passage (14d) to the memory 15 at the latest at this time t7 .
  • the total amount of fibers supplied by them during a given time interval that is the amount of fibers F shown in the exemplary embodiment in FIG. 3 below, is weighed and the time difference between t2 and t6 is selected.
  • the inaccuracy of the measurement caused by the increasing and decreasing fiber quantities in the start-up or run-down phase (from t2 to t3 or from t5 to t6) is accepted with this type of monitoring.
  • Another monitoring method tries to eliminate the error caused by the inaccurate measurement in the start-up and run-down phase by selecting the fiber quantities used for the measurement sample to be relatively large, so that this inaccuracy in comparison to the total amount of fibers practically does not occur Weight drops. Monitoring according to this latter method is not possible without interrupting the operation of the cards 16 or another subsequent machine.
  • the amount of fiber limited to the partial area between the times t3 and t4 is now removed for the measurement. Since the amount of fiber conveyed per unit of time is constant over this entire area, there are no deviations from the correct amount of fiber actually conveyed within the partial area (t3 ... t4) on which the measurement is based from the metering unit to be monitored.
  • the one dosing unit delivers 850 g and the second dosing unit 150 g fibers per weighing, i.e. for a period of 12 s. These quantities are called batches. If it is desired that the batches are of equal weight for monitoring, the measuring times entered (into the keypad 31 of the evaluation device 30) must total 24 seconds for the two units 11.1 and 11.2 for the dosing unit delivering 85% of the fibers 3 , 6 s and 20.4 s for the dosing unit providing 15% of the fibers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Reinforced Plastic Materials (AREA)
EP81104610A 1980-07-23 1981-06-15 Procédé de surveillance d'une installation pour le mélange de fibres textiles et dispositif pour la mise en oeuvre de ce procédé Expired EP0044408B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81104610T ATE13448T1 (de) 1980-07-23 1981-06-15 Verfahren zum ueberwachen einer mischanlage fuer textile stapelfasern und vorrichtung zu dessen durchfuehrung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH561080 1980-07-23
CH5610/80 1980-07-23

Publications (2)

Publication Number Publication Date
EP0044408A1 true EP0044408A1 (fr) 1982-01-27
EP0044408B1 EP0044408B1 (fr) 1985-05-22

Family

ID=4296481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104610A Expired EP0044408B1 (fr) 1980-07-23 1981-06-15 Procédé de surveillance d'une installation pour le mélange de fibres textiles et dispositif pour la mise en oeuvre de ce procédé

Country Status (8)

Country Link
US (1) US4399590A (fr)
EP (1) EP0044408B1 (fr)
JP (1) JPS5751819A (fr)
AT (1) ATE13448T1 (fr)
BR (1) BR8104737A (fr)
DE (1) DE3170585D1 (fr)
ES (1) ES8302130A1 (fr)
IN (1) IN154895B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151063A1 (de) * 1981-12-23 1983-07-28 Trützschler GmbH & Co KG, 4050 Mönchengladbach Verfahren und vorrichtung zum mischen von textilfasern
EP0093235A1 (fr) * 1982-05-04 1983-11-09 Maschinenfabrik Rieter Ag Procédé pour ouvrir des balles de fibres
EP0402940A2 (fr) * 1989-06-16 1990-12-19 Maschinenfabrik Rieter Ag Procédé de mélange de fibres textiles
EP0409772A1 (fr) * 1989-07-18 1991-01-23 Maschinenfabrik Rieter Ag Procédé de traitement optimal des fibres textiles d'une provenance différente
EP0622480A1 (fr) * 1993-04-20 1994-11-02 Maschinenfabrik Rieter Ag Procédé de dosage des quantités préalablement déterminées de flocons de fibres de qualité et/ou de couleur différente
DE10053353B4 (de) * 2000-10-27 2013-06-06 Hubert Hergeth Bandwaage
CN104846498A (zh) * 2015-06-16 2015-08-19 李先登 高效全时空混棉纺纱方法
CN110055649A (zh) * 2019-05-15 2019-07-26 江南大学 混纺纱的智能生产方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59116424A (ja) * 1982-12-22 1984-07-05 Nippon Spindle Mfg Co Ltd 混打綿機に対する原綿自動供給方法
AU629231B2 (en) * 1988-09-06 1992-10-01 Maschinenfabrik Rieter A.G. A method of blending textile fibres
US8030000B2 (en) * 2002-02-21 2011-10-04 Alere San Diego, Inc. Recombinase polymerase amplification

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1374523A (fr) * 1963-08-30 1964-10-09 Installation de filature automatique
CH472514A (de) * 1965-07-21 1969-05-15 Fiber Controls Corp Zyklisch arbeitende Steuerungseinrichtung zum Abmessen und Ausgeben von Material
US4103398A (en) * 1977-07-05 1978-08-01 Wise Industries, Inc. Method and apparatus for blending textile fibers
FR2466521A1 (fr) * 1979-10-02 1981-04-10 Schubert & Salzer Maschinen Procede et dispositif destines a ouvrir et a melanger des balles de fibres

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2156893A (en) * 1938-10-07 1939-05-02 Henry A Wallace Cotton sampler apparatus
US2166811A (en) * 1939-01-17 1939-07-18 Henry A Wallace Cotton sample selecting device
US2320544A (en) * 1941-07-30 1943-06-01 George E Gaus Cotton sampler apparatus
US3110182A (en) * 1959-12-23 1963-11-12 Botany Ind Inc Cotton sampling apparatus
US4301573A (en) * 1979-06-18 1981-11-24 Gunter & Cooke, Inc. Fiber processing apparatus and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1374523A (fr) * 1963-08-30 1964-10-09 Installation de filature automatique
CH472514A (de) * 1965-07-21 1969-05-15 Fiber Controls Corp Zyklisch arbeitende Steuerungseinrichtung zum Abmessen und Ausgeben von Material
US4103398A (en) * 1977-07-05 1978-08-01 Wise Industries, Inc. Method and apparatus for blending textile fibers
FR2466521A1 (fr) * 1979-10-02 1981-04-10 Schubert & Salzer Maschinen Procede et dispositif destines a ouvrir et a melanger des balles de fibres

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151063A1 (de) * 1981-12-23 1983-07-28 Trützschler GmbH & Co KG, 4050 Mönchengladbach Verfahren und vorrichtung zum mischen von textilfasern
US4531262A (en) * 1981-12-23 1985-07-30 Trutzschler Gmbh & Co. Kg System for blending textile fibers
EP0093235A1 (fr) * 1982-05-04 1983-11-09 Maschinenfabrik Rieter Ag Procédé pour ouvrir des balles de fibres
EP0402940A2 (fr) * 1989-06-16 1990-12-19 Maschinenfabrik Rieter Ag Procédé de mélange de fibres textiles
EP0402940A3 (fr) * 1989-06-16 1992-01-08 Maschinenfabrik Rieter Ag Procédé de mélange de fibres textiles
EP0409772A1 (fr) * 1989-07-18 1991-01-23 Maschinenfabrik Rieter Ag Procédé de traitement optimal des fibres textiles d'une provenance différente
EP0622480A1 (fr) * 1993-04-20 1994-11-02 Maschinenfabrik Rieter Ag Procédé de dosage des quantités préalablement déterminées de flocons de fibres de qualité et/ou de couleur différente
DE10053353B4 (de) * 2000-10-27 2013-06-06 Hubert Hergeth Bandwaage
CN104846498A (zh) * 2015-06-16 2015-08-19 李先登 高效全时空混棉纺纱方法
CN110055649A (zh) * 2019-05-15 2019-07-26 江南大学 混纺纱的智能生产方法
CN110055649B (zh) * 2019-05-15 2021-06-08 江南大学 混纺纱的智能生产方法

Also Published As

Publication number Publication date
EP0044408B1 (fr) 1985-05-22
US4399590A (en) 1983-08-23
JPH0217644B2 (fr) 1990-04-23
JPS5751819A (en) 1982-03-26
BR8104737A (pt) 1982-04-13
ATE13448T1 (de) 1985-06-15
ES504335A0 (es) 1983-01-01
ES8302130A1 (es) 1983-01-01
IN154895B (fr) 1984-12-22
DE3170585D1 (en) 1985-06-27

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