EP0468985A1 - Dispositif pour l'alimentation d'une matiere fibreuse sous forme de flocons. - Google Patents

Dispositif pour l'alimentation d'une matiere fibreuse sous forme de flocons.

Info

Publication number
EP0468985A1
EP0468985A1 EP90905468A EP90905468A EP0468985A1 EP 0468985 A1 EP0468985 A1 EP 0468985A1 EP 90905468 A EP90905468 A EP 90905468A EP 90905468 A EP90905468 A EP 90905468A EP 0468985 A1 EP0468985 A1 EP 0468985A1
Authority
EP
European Patent Office
Prior art keywords
shaft
air
duct
air flow
filling
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
EP90905468A
Other languages
German (de)
English (en)
Other versions
EP0468985B1 (fr
Inventor
Akiva Pinto
Guenter Lucassen
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.)
Hollingsworth GmbH
Hergeth Hollingsworth GmbH
Original Assignee
Hollingsworth GmbH
Hergeth Hollingsworth 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
Application filed by Hollingsworth GmbH, Hergeth Hollingsworth GmbH filed Critical Hollingsworth GmbH
Publication of EP0468985A1 publication Critical patent/EP0468985A1/fr
Application granted granted Critical
Publication of EP0468985B1 publication Critical patent/EP0468985B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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 invention relates to a device for feeding flake fiber material to processing machines according to the preamble of the main claim.
  • Such feeding devices are used, for example, for cards or cards, but also for opening and cleaning machines.
  • a known device for feeding fiber processing machines e.g. Carding, carding, punching machines or the like is known for example from DE-OS 36 25 311.
  • the feed device has an upper filling shaft with perforated walls from which the transport air flow can be removed.
  • a feed roller is arranged which interacts with an impact or opening roller.
  • a feed shaft with also partially perforated shaft walls leads to a pair of feed rollers via which the nonwoven fabric is fed to the subsequent processing machine.
  • Tangential to the impact roller, but behind the impact point a stream of compressed air is blown in, which emerges again at the perforated shaft walls of the feed shaft and is fed to a fan for recirculation.
  • the transport air flow which emerges at the upper filling shaft, is discharged via a separate exhaust air duct.
  • a separate exhaust air duct Such a feeding device only allows the compression of the fibers in the feed shaft, but does not help to reduce the dust carried with cotton fiber flakes.
  • the invention is based on the object of further developing the feed device of the type mentioned at the outset in such a way that a reduction in the proportion of dust in the fiber flakes is made possible.
  • the transport air flow is advantageously carried out inside the housing in an exhaust duct essentially parallel to the filling and feed duct to an exhaust air connection at the lower part of the machine.
  • This exhaust air connection is arranged downstream of the air-permeable shaft wall of the feed shaft and can thereby also additionally discharge the compressed air flow which has been separated from the fibers and which is particularly enriched with dust and foreign particles after the point of impact between the feed and impact roller.
  • a partial air flow of the transport air flow led out of the filling shaft is used as the compression air flow, the branch point being arranged downstream of the air-permeable shaft wall of the filling shaft, but in front of the air-permeable shaft wall of the feed shaft.
  • the branched-off partial air stream is directed tangentially to the beater roller at the nip point between the feed and beater rollers, which advantageously means that the branched-off partial air stream is not only used as a compressed air stream, but also at the point of impact in the nip point the blowing effect supports the removal of dust and foreign particles from the fiber flakes.
  • the compression stream enriched with the waste and dust particles is then not recirculated but disposed of directly via the exhaust duct.
  • the partial air flow can be shut off and released alternately, as a result of which a pump effect occurs in the feed shaft, which enables a self-cleaning effect on the air-permeable shaft wall of the feed shaft, thereby clogging the air-permeable shaft wall, e.g. a screen wall, prevented, and a smooth continuous operation guaranteed.
  • the exhaust air duct can be at least partially intermittently shut off downstream of the air-permeable duct wall of the filling duct. In this way, a self-cleaning effect on the air-permeable shaft wall can also be achieved in the filling shaft. Shutting off can be done via slides or flaps, which can also be divided across the width of the shaft and can be operated alternately. An exemplary embodiment of the invention is explained in more detail below with reference to the single drawing.
  • the figure shows a feed device for a card, but the air duct is also suitable for a feed opening of an opening and cleaning machine.
  • the fiber material in flake form is fed via a transport channel 10 to an upper filling shaft 1, which is connected via an air-permeable shaft wall 2 to an exhaust air space 3, which is a component of an exhaust air shaft 4, which extends from the exhaust air chamber 3 to the lower part of the machine to an exhaust air connection 5 runs essentially parallel to the filling shaft 1 and the feed shaft 6 arranged underneath.
  • This exhaust duct 4 is arranged within the housing 7 of the feed device.
  • a feed roller 8 is arranged which interacts with an impact or opening roller 9, from which the feed shaft 6 extends tangentially.
  • the feed shaft 6 also has an at least partially air-permeable shaft wall 11, which is also open to the exhaust shaft 4.
  • flaps or slides 12 are arranged which are opened or closed intermittently, whereby a pump effect is generated in the filling shaft, which prevents the air-permeable intermediate wall 2 from clogging.
  • the shut-off valves and slide valves can also only release part of the shaft width.
  • a ventilator 14 is arranged in the exhaust air duct 4 in the section below the filling duct 1, which fan controls a partial air flow B of the transmission branches off air stream A and tangentially to the beater roller feeds the nip between feed roller 8 and beater roller 9, via a pivotable slide 15 which intermittently holds or releases the suction opening 16 of the fan 14, is a pulsating blowing in of the partial air stream B. possible.
  • the partial air flow B is shown behind the impact point in the feed shaft 6 as a compression flow C, which in the lower region of the feed shaft 6 passes through the air-permeable shaft wall 11 of the feed shaft 6, identified by the arrows D, into the exhaust air shaft 4, in order to mix there with the transport air stream E reduced by the partial air stream B and to be disposed of as exhaust air F via the exhaust air connection 5.
  • the feed shaft 6 is slightly inclined from the vertical by the feed roller 8 by approximately 10 'and passes into a shaft chute 18 without take-off rollers, via which the nonwoven fabric is fed to a card 20.
  • the exhaust air connection 5 can be connected to an exhaust air disposal 22 of the card 20.

Abstract

Dans un dispositif destiné à l'alimentation d'une matière fibreuse sous forme de flocons à destination de machines de traitement muni d'un conduit de remplissage supérieur (1) disposé dans un boîtier, ledit conduit possède sur sa partie inférieure un cylindre d'alimentation (8) qui coopère avec un cylindre frappeur ou ouvreur (9) d'où part tangentiellement un conduit d'alimentation (6), le conduit de remplissage (1) ainsi que le conduit d'alimentation (6) présentant une paroi (2, 11) au moins partiellement perméable à l'air, une compression pneumatique intervenant en outre dans le conduit d'alimentation par insufflation d'un flux d'air de compression (C) et le flux d'air de transport (A) étant évacué sur la paroi (2) perméable à l'air du conduit de remplissage (1), il est prévu que le flux d'air de transport (A) soit évacué dans un conduit d'évacuation (3, 4) essentiellement parallèle aux conduits de remplissage et d'alimentation (1, 6) à l'intérieur du boîtier (7) jusqu'à un raccord d'évacuation d'air (5) se trouvant en aval de la paroi (11) perméable à l'air du conduit d'alimentation, qu'à un point de dérivation entre le conduit de remplissage (1) et le conduit d'alimentation (6) un flux d'air partiel (B) du flux d'air de transport (A) soit introduit dans le conduit d'alimentation (6) comme flux d'air de compression (C) et que le flux d'air de compression (D) sortant de la paroi (11) perméable à l'air du conduit d'alimentation soit introduit, en aval du point de dérivation, dans le conduit d'évacuation d'air (4).
EP90905468A 1989-04-17 1990-04-10 Dispositif pour l'alimentation d'une matiere fibreuse sous forme de flocons Expired - Lifetime EP0468985B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3912565A DE3912565A1 (de) 1989-04-17 1989-04-17 Vorrichtung zum speisen von in flockenform befindlichem fasergut
DE3912565 1989-04-17

Publications (2)

Publication Number Publication Date
EP0468985A1 true EP0468985A1 (fr) 1992-02-05
EP0468985B1 EP0468985B1 (fr) 1993-08-04

Family

ID=6378845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90905468A Expired - Lifetime EP0468985B1 (fr) 1989-04-17 1990-04-10 Dispositif pour l'alimentation d'une matiere fibreuse sous forme de flocons

Country Status (5)

Country Link
US (1) US5197162A (fr)
EP (1) EP0468985B1 (fr)
JP (1) JPH04504738A (fr)
DE (2) DE3912565A1 (fr)
WO (1) WO1990012909A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6553630B1 (en) 2001-04-11 2003-04-29 TRüTZSCHLER GMBH & CO. KG Device for setting the distance between adjoining fiber clamping and fiber transfer locations in a fiber processing system
WO2011058467A1 (fr) 2009-11-12 2011-05-19 Marzoli S.P.A. Dispositif d'alimentation de fibres pour alimenter en touffe une machine de travail, par exemple une machine a carder

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4434251B4 (de) * 1994-09-24 2006-02-23 Trützschler GmbH & Co KG Speiseeinrichtung für Karden, Krempeln o. dgl. für Textilfasermaterial
GB2294700B (en) * 1994-09-24 1998-09-16 Truetzschler Gmbh & Co Kg Method and device for charging a textile machine
DE19522995B4 (de) * 1994-10-10 2006-03-16 Trützschler GmbH & Co KG Vorrichtung zum Abscheiden von aufgelösten Faserflocken aus einem Luftstrom, z.B. Flockenbeschickung für eine Karde, Reiniger o. dgl.
EP0894878A3 (fr) 1997-07-30 2000-04-19 Maschinenfabrik Rieter Ag Nettoyeur de flocons
FR2766846B1 (fr) * 1997-08-04 1999-10-22 Thibeau Dispositif de formation d'un voile de fibres en bourre, en particulier pour le chargement d'une machine textile telle qu'une carde
DE10118067A1 (de) * 2001-04-11 2002-10-17 Truetzschler Gmbh & Co Kg Vorrichtung an einer Krempel oder Karde zur Vergleichmäßigung des Faserflors oder -bandes
DE502005005719D1 (de) * 2004-11-04 2008-11-27 Rieter Ag Maschf Reinigungsvorrichtung für faserflocken

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2634250B2 (de) * 1976-07-30 1978-08-17 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Verfahren und Vorrichtung zum Beschicken einer Karde mit Fasermaterial
CH624437A5 (fr) * 1977-07-18 1981-07-31 Rieter Ag Maschf
US4154485A (en) * 1977-08-16 1979-05-15 Fiber Controls Corporation Web-former
DE2804413C3 (de) * 1978-02-02 1981-10-08 Trützschler GmbH & Co KG, 4050 Mönchengladbach Verfahren und Vorrichtung zum Beschicken einer Karde
US4476611A (en) * 1980-11-17 1984-10-16 Automatic Material Handling, Inc. Fiber feeding apparatus with fiber leveling means
US4387486A (en) * 1981-04-17 1983-06-14 Automatic Material Handling, Inc. Control system for fiber processing apparatus
US4404710A (en) * 1981-05-29 1983-09-20 Rando Machine Corporation Apparatus for feeding fibers to carding machines and the like
US4403374A (en) * 1981-06-17 1983-09-13 Rando Machine Corporation Means for controlling density of non-woven fiber webs
DE3128564A1 (de) * 1981-07-18 1983-02-03 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum abliefern eines faserflockenvlieses, insbesondere zum beschicken einer textilmaschine, z. b. einer karde
US4394790A (en) * 1981-12-30 1983-07-26 Automatic Material Handling, Inc. Fiber feeding apparatus with controlled air flow
US4510647A (en) * 1982-10-13 1985-04-16 Keller Alex J Method and apparatus for controlling fiber density
EP0113819A3 (fr) * 1982-12-21 1984-08-22 Maschinenfabrik Rieter Ag Procédé pour le traitement des flocons de fibres et dispositif pour la mise en oeuvre de ce procédé
US4520530A (en) * 1983-09-02 1985-06-04 Akiva Pinto Fiber feeding apparatus with a pivoted air exhaust wall portion
DE3336654A1 (de) * 1983-10-08 1985-04-25 Hergeth Hollingsworth GmbH, 4408 Dülmen Speisevorrichtung fuer karden, krempel u. dgl.
DE3503574A1 (de) * 1985-02-02 1986-08-07 Trützschler GmbH & Co KG, 4050 Mönchengladbach Vorrichtung zum beschicken einer karde oder krempel mittels zweier fuellschaechte
US4657444A (en) * 1985-07-24 1987-04-14 Hergeth Hollingsworth Gmbh Synchronized chute feed control system and method
IT8620811A0 (it) * 1985-09-11 1986-06-17 Monchengladbach Rep Fed German Dispositivo di regolazione e comando del cilindro introduttore di un dispositivo alimentatore di fiocco.
DE3617526A1 (de) * 1986-05-24 1987-11-26 Truetzschler & Co Verfahren und vorrichtung zum speisen einer anzahl von karden, krempeln o. dgl.
JPS6420326A (en) * 1987-07-13 1989-01-24 Ohara Tekkosho Kk Apparatus for feeding cotton to card
DE3904317A1 (de) * 1989-02-14 1990-08-16 Hollingsworth Gmbh Vorrichtung zum pneumatischen speisen von fasergut zu einem schacht u. dgl.
US4970759A (en) * 1989-04-14 1990-11-20 Roberson James H Textile fiber processing apparatus and method
JPH03130420A (ja) * 1989-10-12 1991-06-04 Howa Mach Ltd カード給綿機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9012909A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6553630B1 (en) 2001-04-11 2003-04-29 TRüTZSCHLER GMBH & CO. KG Device for setting the distance between adjoining fiber clamping and fiber transfer locations in a fiber processing system
WO2011058467A1 (fr) 2009-11-12 2011-05-19 Marzoli S.P.A. Dispositif d'alimentation de fibres pour alimenter en touffe une machine de travail, par exemple une machine a carder

Also Published As

Publication number Publication date
DE3912565A1 (de) 1990-10-18
US5197162A (en) 1993-03-30
DE59002216D1 (de) 1993-09-09
EP0468985B1 (fr) 1993-08-04
JPH04504738A (ja) 1992-08-20
WO1990012909A1 (fr) 1990-11-01

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