EP2119817B1 - Conduit d'alimentation - Google Patents

Conduit d'alimentation Download PDF

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Publication number
EP2119817B1
EP2119817B1 EP09160196.3A EP09160196A EP2119817B1 EP 2119817 B1 EP2119817 B1 EP 2119817B1 EP 09160196 A EP09160196 A EP 09160196A EP 2119817 B1 EP2119817 B1 EP 2119817B1
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EP
European Patent Office
Prior art keywords
fibers
feed
supply
fiber
supply duct
Prior art date
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EP09160196.3A
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German (de)
English (en)
Other versions
EP2119817A3 (fr
EP2119817A2 (fr
Inventor
Hubert A. Hergeth
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Individual
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Publication of EP2119817A2 publication Critical patent/EP2119817A2/fr
Publication of EP2119817A3 publication Critical patent/EP2119817A3/fr
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Publication of EP2119817B1 publication Critical patent/EP2119817B1/fr
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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
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/40—Feeding apparatus
    • 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
    • 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
    • D01G23/08—Air draught or like pneumatic arrangements

Definitions

  • feeding shafts for cards or carding machines have been known in the textile industry. These machines supply a fiber mat for feeding carding or carding.
  • a well-known method of Rieter AG consisted of simple shafts, which were blown at 90 ° to the axial direction of the take-off rolls of the shafts with a fiber-air mixture.
  • the fibers which could not be taken up in one of the shafts, were blown in excess into a collecting tower and then fed back to the shafts via a feed roller pair.
  • the feed shafts had no air filters.
  • Blends of different fibers deposit high density fibers on entry and low density fibers on the opposite end.
  • a pneumatic feeding of several feed shafts via a closed loop known via a switchable deflection device can be carried out feeding of fibers in opposite directions of flow.
  • a part of the loop is disadvantageously closed by the deflection, so that a dead space is formed, in which deposit previously not fed fibers. Only by switching the deflection in the opposite direction of flow of these fibers are again promoted to the feed shafts and achieved a uniform feed.
  • a pneumatic fiber feeder that delivers fibers to a number of fiber processing machines.
  • the fibers are drawn from a needled feed roller into a stream of air which flows in a supply channel which is connected to the upper ends of vertical feed channels of a number of processing machines.
  • baffles are arranged in the feed channel adjacent to the upper ends of the feed channels to deflect the fibers into the feed channels.
  • the feed channels are oscillated in the transverse direction to ensure a uniformly dense distribution of fibers in the feed channels.
  • the airflow, after passing through all the feed channels, is returned to the blower. There, the remaining fibers are removed from the air stream, which is then returned to the feed roller.
  • a conveying device for feeding fiber material to a number of cards, which are combined into groups or rows.
  • the fibers are fed via a feed channel and a blower onto a conveyor belt which extends from an inlet opening to an outlet opening.
  • a portion of the fibers lying on the conveyor belt in each case a shaft, of which three shafts are arranged in pairs next to each other.
  • a device for feeding food chutes of a web forming machine in which a fiber transporting air flow along the inputs of the wells and then passed through a filter device, so that fibers that are still present in the air stream when it has passed the shafts, filtered out become.
  • the object of the invention is to provide a uniform fiber deposition in a feed chute across the width.
  • more fibers are fed laterally into the well than are withdrawn from the well.
  • the surplus fibers leave the shaft at the side opposite the feed opening through an exit opening.
  • the amount of recycled fibers can be measured by dimming light barriers in the return channel. This measurement is taken into account in determining the fiber feed to prevent overfilling the circuit with fibers.
  • the scheme illustration 1 illustrates the invention.
  • Fibers from a feeder 1 are fed by metering rollers 2, which determine the amount of fiber to be fed by the variable speed, an opening device 3 and transferred into an air stream 4.
  • a fan 5 blows the fibers laterally in the axial direction of a feed chute 13 through a feed channel 6 in the upper part 7 of the feed chute 13.
  • the air velocity decreases. With the low air speed, the fibers can no longer be transported and settle at the point. Excess fibers reach the exit 8 of the feed chute and are sucked back to a fiber feed 10.
  • Photocells 9 are briefly darkened by the passing fibers. The time of darkening is a measure of surplus fiber.
  • the fiber mat 15 is pulled off by at least one take-off roll 14.
  • the fiber distribution is through a sieve surface 11th and improves air return of the air leaked through the screen surface. If the strainer surfaces are free, there is less resistance to the air than at the outlet 8, and the air passes more easily via a branch 12 to a return line. In this way, the fibers deposit increasingly at the places where there are still no fibers.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (1)

  1. Conduit d'alimentation pour une machine textile de formation d'étoffe non tissée, comprenant un ventilateur (5) raccordé à un point d'injection de fibres (10), lequel point d'injection achemine des fibres à un flux d'air (4), le ventilateur (5) soufflant le flux d'air (4), avec les fibres qui lui sont acheminées, à travers un canal d'acheminement (6) latéralement par rapport à la direction de l'axe du conduit d'alimentation (13) et parallèlement à la direction de l'axe d'un rouleau de tirage (14) dans la partie supérieure (7) du conduit d'alimentation (13), et comprenant une sortie (8), laquelle est également disposée dans la partie supérieure (7) du conduit d'alimentation (13), sur le côté du conduit d'alimentation (13), lequel côté se trouvant à l'opposé de la bouche du canal d'acheminement (6), les fibres excédentaires parvenues jusqu'à la sortie (8) étant aspirées en arrière vers le point d'injection de fibres (10) par le biais d'une conduite de retour,
    caractérisé en ce
    qu'une surface de tamis (11) se trouve dans la partie supérieure du conduit d'alimentation (13) et au-dessous ainsi qu'entre la sortie (8) et la bouche du canal d'acheminement (6), sur laquelle surface de tamis se déposent les fibres qui parviennent dans le conduit d'alimentation (13), et
    en ce qu'il existe un retour d'air formé par une dérivation (12) raccordée au conduit d'alimentation (13), par le biais de laquelle dérivation l'air sortant de la surface de tamis (11) parvient jusqu'à la conduite de retour, par le biais de laquelle conduite de retour les fibres parvenues jusqu'à la sortie (8) sont aussi aspirées vers le point d'injection de fibres (10).
EP09160196.3A 2008-05-15 2009-05-14 Conduit d'alimentation Active EP2119817B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008023692A DE102008023692A1 (de) 2008-05-15 2008-05-15 Chutespeisung

Publications (3)

Publication Number Publication Date
EP2119817A2 EP2119817A2 (fr) 2009-11-18
EP2119817A3 EP2119817A3 (fr) 2011-05-18
EP2119817B1 true EP2119817B1 (fr) 2019-01-02

Family

ID=40976316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09160196.3A Active EP2119817B1 (fr) 2008-05-15 2009-05-14 Conduit d'alimentation

Country Status (5)

Country Link
EP (1) EP2119817B1 (fr)
CN (1) CN101619511A (fr)
DE (1) DE102008023692A1 (fr)
ES (1) ES2717617T3 (fr)
TR (1) TR201904452T4 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108441971A (zh) * 2018-05-23 2018-08-24 史小军 高强高模聚乙烯纤维纺丝原液制备装置
EP3699334B1 (fr) * 2019-02-21 2023-08-09 Oskar Dilo Maschinenfabrik KG Dispositif d'alimentation d'une installation de formation du non-tissé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145426A (en) * 1961-01-25 1964-08-25 Nihon Spindle Mfg Co Ltd Automatic raw material feed for carding machines
DE1234598B (de) * 1960-01-15 1967-02-16 T M M Res Ltd Hartford Works Foerdervorrichtung zum Heranfuehren des Fasergutes zu einer Anzahl zu Gruppen oder Reihen zusammengefasster Karden
JPS4813173B1 (fr) * 1970-12-11 1973-04-25
JPS49108910U (fr) * 1972-12-28 1974-09-18
SU1265223A1 (ru) * 1985-04-01 1986-10-23 Ивановский Ордена "Знак Почета" Энергетический Институт Им.В.И.Ленина Устройство дл питани волокном группы чесальных машин

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2121890A1 (en) * 1971-01-16 1972-08-25 Bisinger Bernhard Pneumatic fibre feed - supplying fibres to series of fibre processing machines
CH546833A (de) 1972-01-04 1974-03-15 Rieter Ag Maschf Vorrichtung zum abscheiden von aufgeloesten faserflocken aus einem foerderluftstrom.
CH599990A5 (fr) 1975-07-16 1978-06-15 Rieter Ag Maschf
DE2720340C3 (de) * 1977-05-06 1981-10-01 Trützschler GmbH & Co KG, 4050 Mönchengladbach Verfahren und Vorrichtung zum Abscheiden von Faserflocken aus einem Transportluftstrom in einen Ablagerungsschacht
DE4131758A1 (de) * 1991-09-24 1993-03-25 Hollingsworth Gmbh Vorrichtung und verfahren zum pneumatischen speisen von mehreren speiseschaechten
GB9502440D0 (en) * 1995-02-08 1995-03-29 Camelot Superabsorbents Ltd Device for metering fibres
EP0877105A1 (fr) * 1997-05-07 1998-11-11 Maschinenfabrik Rieter Ag Appareil de préparation à la filature

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1234598B (de) * 1960-01-15 1967-02-16 T M M Res Ltd Hartford Works Foerdervorrichtung zum Heranfuehren des Fasergutes zu einer Anzahl zu Gruppen oder Reihen zusammengefasster Karden
US3145426A (en) * 1961-01-25 1964-08-25 Nihon Spindle Mfg Co Ltd Automatic raw material feed for carding machines
JPS4813173B1 (fr) * 1970-12-11 1973-04-25
JPS49108910U (fr) * 1972-12-28 1974-09-18
SU1265223A1 (ru) * 1985-04-01 1986-10-23 Ивановский Ордена "Знак Почета" Энергетический Институт Им.В.И.Ленина Устройство дл питани волокном группы чесальных машин

Also Published As

Publication number Publication date
DE102008023692A1 (de) 2009-11-19
CN101619511A (zh) 2010-01-06
TR201904452T4 (tr) 2019-05-21
EP2119817A3 (fr) 2011-05-18
ES2717617T3 (es) 2019-06-24
EP2119817A2 (fr) 2009-11-18

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