EP0494181A1 - Procede et dispositif de demelage et de nettoyage de produits fibreux. - Google Patents

Procede et dispositif de demelage et de nettoyage de produits fibreux.

Info

Publication number
EP0494181A1
EP0494181A1 EP90913807A EP90913807A EP0494181A1 EP 0494181 A1 EP0494181 A1 EP 0494181A1 EP 90913807 A EP90913807 A EP 90913807A EP 90913807 A EP90913807 A EP 90913807A EP 0494181 A1 EP0494181 A1 EP 0494181A1
Authority
EP
European Patent Office
Prior art keywords
opening
air flow
fiber material
housing
rollers
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
EP90913807A
Other languages
German (de)
English (en)
Other versions
EP0494181B1 (fr
Inventor
Akiva Pinto
Guenter Lucassen
Manfred Scholbrock
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 EP0494181A1 publication Critical patent/EP0494181A1/fr
Application granted granted Critical
Publication of EP0494181B1 publication Critical patent/EP0494181B1/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
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/08—Opening or cleaning fibres, e.g. scutching cotton by means of air draught arrangements

Definitions

  • the invention relates to a method and a device for opening and cleaning fiber material according to the preamble of the main claim or claim 2.
  • Such a method is used to obtain fiber material, in particular cotton fibers, as early as possible, i.e. after a bale opening process, effective cleaning.
  • Automatic high-performance picking and egrenier methods during the harvesting and ginning of the cotton have caused the degree of contamination of many types of cotton to rise sharply.
  • a baffle plate arranged above and between the opening rollers does not enable cleaning to be intensified, since it does not lead to an increase in the number of fibers flowing around the opening rollers, but rather increases the pressure loss in the transport air. . ,
  • a separating plate is arranged as a baffle between the rollers.
  • the feed and discharge channel runs transversely to the axes of the opening rollers.
  • the separating plate leads to a strong disturbance of the air flow and thus to flow loss that lead to increased air and energy consumption. Furthermore, a separation of the air flow from the fiber material flow is not possible to a sufficient extent with the aid of the separating plate.
  • the invention is therefore based on the object of developing a method and a device of the type mentioned at the outset in such a way that the separation of the air and fiber material stream is improved, thereby enabling an improved cleaning action with reduced air and energy requirements.
  • the fiber material fed in via the inlet pipe socket and carried in an inlet-side transport air flow is guided vertically from above onto the rear inlet-side end of the first opening roller in the fiber transport direction tangentially between the housing wall and the opening roller, the direction of rotation of the opening roller running in the entry region in the direction of the housing wall .
  • the fiber material flow is separated from the transport air flow on the inlet side, so that on the one hand a first partial air flow as the main flow without fiber material, due to the dynamic pressure that forms, can reach the outlet pipe socket diagonally above the first opening roller without increased air resistance, while that due to inertia Fiber material flow taken up by the first opening roller with a relatively small portion of the transport air flow, namely a second partial air flow, spirally revolves around both opening rollers several times.
  • the steepness of this spiral Circulations around both opening rollers is considerably reduced, since only a small axial component of the partial air flow acts in the area of the opening rollers in the direction of the outlet pipe socket.
  • the axial component of the second partial air flow running tangentially around the opening rolls can be induced by the first partial air flow running diagonally above the first opening roll.
  • the number of revolutions of the fiber material is considerably increased due to the low axial component of the second partial air flow and thus the cleaning effect is improved.
  • the flow rate of the first partial air flow is considerably reduced relative to the transport air flow due to the cross-sectional expansion in the interior of the housing 3, while the flow speed of the second partial air flow decreases due to the rapid rotation of the opening roller of the peripheral speed. adapts opening rollers. Since the first partial air flow can flow to the outlet pipe socket almost unhindered, the air requirement and the pressure loss are reduced.
  • the fiber material can be sucked in again by the inlet-side transport air flow and transported further.
  • An important advantage of the invention is that no guide plates causing a pressure loss are required in the peripheral region of the opening rollers.
  • the first opening roller in the fiber transport direction is equipped with needles.
  • the opening roller equipped with needles enables a finer resolution of the supplied fiber flakes and thereby a better separation of foreign components on the first grate segment in the fiber transport direction.
  • the second opening roller in the fiber transport direction can be at least partially equipped with pins attached to air conveying strips. The strips on this opening roller increase the air flow carried along and thereby also improve the separation performance in the case of smaller foreign components on the second grate segment.
  • the opening rollers are inclined downwards from the entry side to the exit side. Such an inclination has the advantage that the spiral forward movement is supported by gravity.
  • the first collecting chamber below the baffle between the grate segments of the opening rollers heavy and large-volume foreign components that could not be separated on the grate segments due to their size can advantageously be collected.
  • a major advantage of this collection chamber is that large and heavy foreign components can be separated without any appreciable loss of fiber, since although the inlet slot has a large opening cross section, the closed collection chamber does not allow any appreciable air flow. Because of the air entrained by the opening rollers, there is strong swirling in the first collecting chamber, but this means that any flakes of fiber that have fallen into the collecting chamber are also swirled out again, so that ultimately only the heavy parts in the collecting chamber that could lead to significant malfunctions are collected.
  • the collecting chamber can be connected to a first disposal channel via a flap or the like.
  • the flap to the first disposal channel can then be opened at regular or irregular intervals, as a result of which the foreign matter falls into the first disposal channel, which is disposed of after the flap has been closed.
  • the guide plate is preferably designed as an impact wedge which is triangular in cross section, the tip of which is directed upwards. Heavy parts that are pushed outwards due to centrifugal forces hit the impact wedge and fall into the collecting area.
  • the first inlet slot in the fiber material transport direction is limited by an adjustable guide plate running over the entire length of the opening rollers, by means of which the angle of impact of the fiber material flow against the impact wedge can be adjusted.
  • a funnel-shaped second collecting chamber is arranged under the grate segments, into which the first collecting chamber and the first disposal channel protrude, a second disposal channel at the lower end of the second collecting space containing the smaller foreign material deposited on the grate segments parts of the fiber material, e.g. Trash, continuously dissipates. In this way, trash material and excreted heavy parts can be removed separately and fed to different collection points.
  • the inlet pipe socket is preferably arranged on the side opposite the disposal channels above the first opening roller.
  • the fiber material falls then vertically from above onto the first opening roller and is moved from there in a screwing motion due to the rotational movement of the first opening roller.
  • Fig. 1 is a perspective view of the opening and cleaning device
  • Fig. 2 is a schematic front view of the opening and cleaning device
  • FIG 3 shows a front view of a second exemplary embodiment.
  • the opening and cleaning device is provided with a pair of parallel opening rollers 2 and 4 mounted in a housing 3 and parallel to one another in FIGS. 1 to 3.
  • the fibers are first fed vertically through the transport air flow 6 through the inlet pipe socket 8 at one end of the first opening roller 2 in the transport direction and supported by a partial air flow 10 without an axial flow component of the transport air flow 6 axially along the length of the opening rollers 2, 4 spirally moved, rotating at high speed.
  • the much larger main air flow than the partial air flow 9 of the transport air flow 6 flows over the opening rollers 2, 4 almost parallel to the opening rollers 2, 4 to a horizontally and axially above and between the opening rollers 2, 4 emerging from the housing 3 outlet pipe socket 30, and combines there with the partial air flow 32 resulting partly from the partial air flow 10 and partly generated by the opening roller 4 to the transport air flow 34 for the removal of the cleaned fiber material.
  • the fiber material does not follow the main air flow in the partial air flow 9 due to gravitational and inertial forces.
  • the partial air flow 9 inevitably develops due to the dynamic pressure.
  • the incoming transport air flow 6 has no axial component, but is directed essentially tangentially to the first opening roller in the transport direction.
  • only a partial air stream 10 is inevitably carried along with the fiber material, while the partial air stream 9 deflected in the axial direction remains in a plane above the two opening rollers 2, 4 and almost flows directly to the outlet pipe socket 30.
  • Due to the only weak axial component of the partial air flow 10, the fiber material can circulate around the two opening rollers 2, 4 particularly frequently and can therefore be cleaned particularly intensively.
  • the fiber material circulates around the opening rollers 2.4 axially in the form of an 8, the change to the other opening roller 2.4 taking place between the opening rollers 2.4 due to the rotation of the opening rollers 2.4 in the same direction.
  • the axes of the opening rollers 2.4 can also be inclined relative to the horizontal, which influences the number of revolutions of the fiber material can be taken. In an embodiment not shown, the inclination of the axes parallel to one another is downward on the outlet side.
  • Contaminations separated from the opening rollers 2, 4 fall through grate segments 12, 14 into a funnel-shaped collecting container 16 arranged below the grate segments, from which they are sucked off in a continuous transport air flow 20 via a disposal channel, for example a suction channel 18 can be removed or removed mechanically.
  • the opening rollers 2, 4 rotate continuously while the fibers are transported along the opening rollers.
  • the first opening roller 2 in the fiber transport direction is provided with needles 22 arranged one behind the other in the longitudinal direction of the opening roller and extending radially outward. These needles gently and intensively clean the fiber material as they flow through the cleaning device.
  • the opening roller 4 on the other hand, is provided with pins 24, which are likewise arranged one behind the other in the longitudinal direction of the rollers, with every second row of pins being arranged on an air conveyor bar 26, which serves to swirl the air and the amount of air carried along with the opening roller 4 to enlarge. It is provided that the amount of air carried by the air conveyor strips 26 is pressed into collecting chambers described later.
  • the needles of the opening roller 2 bring about an improved opening of the fiber material fed in flake form.
  • the cleaned fiber material is transported away in the end 28 of the housing 3 opposite the inlet pipe socket 8 via the outlet pipe socket 30 in the transport air flow 34 to the next processing stage.
  • the fiber material is conveyed by the opening roller 4 in a partial air flow 32 under the suction effect of the partial air flow 9 to the outlet pipe socket 30 and combined to form the transport air flow 34.
  • the partial air flow 32 is at least partially generated with the aid of the air conveyor strips 26.
  • an impact wedge 40 with a triangular cross-section with an upwardly oriented tip is arranged.
  • the impact wedge 40 runs over the entire length of the opening rollers 2, 4 and parallel to them.
  • a wide inlet slot 42, 44 is provided for the respective opening rollers 2, 4, through which heavy and large-volume foreign components are separated into a collecting space 46.
  • This collecting space 46 also extends over the entire length of the opening rollers and has in its area facing the opening roller 2 a guide plate 48 which can be adjusted with respect to the angular position. The width of both inlet slots 42, 44 can be adjusted.
  • the collecting space 46 is kept closed at the bottom by two pivotable bottom flaps 52, 54, so that it is sealed against the disposal channel located under the bottom flaps 52, 54.
  • the air carried by the opening rollers 2, 4 leads in the collecting space 46 to the swirls shown with an arrow in the figures, which, however, are used insofar as good fibers, which have reached the collecting space 46, are also whirled out again are, while heavy parts and large-volume parts remain in the collecting space and are disposed of there at predetermined time intervals or as required by opening the flaps 52, 54.
  • the impurities present in the plenum 46 entering 'a discharge channel 56 which extends over the entire length there d plenum 46 extends from which they can then, for example, taken away in an air stream 58 after closing the valves 52,54.
  • the opening and cleaning device thus makes it possible to feed even heavy parts and large-volume foreign parts separately from the collecting points separated from the smaller foreign parts and trash parts separated on the grate segments 12, 14.
  • the two disposal channels 18 and 56 are also located in the end face 28 of the opening and cleaning device.
  • the grate segments 12 of the opening roller 2 begin in the direction of rotation at an angle of approximately 45 * from Horizontal and end in an angular range between 5 * and 10 * behind the vertical.
  • the surface 62 of the impact wedge 40 facing the opening roller 4 serves as a guide surface for the foreign components accelerated radially outwards due to the impact of the pins 24 of the opening roller 4 and for the air carried by the air conveyor strips 26, the guide surface 62 for these foreign components and directs the air directly into the plenum 46 via the inlet slot 44.
  • the air can exit through the inlet slot 42 again from the collecting space 46 and rinse out the light fibers and feed the opening roller 2.
  • FIG. 3 shows a second exemplary embodiment, in which the second opening roller 4 likewise has a collecting space 68.
  • the third collecting space 68 is arranged in the direction of rotation following the grate segment 14 and can be disposed of, for example, via an opening in the end wall 28.
  • the collecting space 68 is open to the opening roller 4, a guide plate 70 being arranged in the opening.
  • Two opening slots 72, 74 are formed by the guide plate 70.
  • the air carried by the air conveying strips 26 can also flow through the collecting space 68 and rinse out fibers that have entered the collecting space, while heavy parts remain therein. Due to asymmetrical arrangement of the control A different dynamic pressure can be generated in the opening slots 72, 74 so that the air can penetrate through one opening slot and exit through the other.

Landscapes

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

Abstract

Un dispositif de démêlage et de nettoyage de produits fibreux comprend deux cylindres de démêlage (2, 4) parallèles, agencés horizontalement dans un logement (3) au-dessus de segments de grille (12, 14). Ces cylindres tournent dans le même sens et leurs rayons d'action (36, 38) se touchent presque sur le plan horizontal. Une tubulure (8) d'admission est tangentiellement orientée par rapport à une extrémité du premier cylindre de démêlage (2), dans le sens de transport des fibres, et une tubulure de sortie (30) fait horizontalement saillie hors du logement (3) du côté du logement (3) opposé à la tubulure d'admission (8). Un courant d'air (6, 34) amène ou enlève les produits fibreux par ces deux tubulures. La tubulure d'admission (8) dirige les produits fibreux verticalement sur le côté du premier cylindre de démêlage (2) opposé au deuxième cylindre de démêlage (4), entre le logement (3) et le cylindre de démêlage (2). Le sens de rotation du cylindre de démêlage (2) diverge du deuxième cylindre de démêlage (4) au niveau de l'entrée du produit fibreux et concorde à sa périphérie avec le sens de la chute du produit fibreux le long du logement (3). La tubulure de sortie (30) est agencée axialement entre les cylindres de démêlage (2, 4) et sort du logement (3) au-dessus de ceux-ci (2, 4).
EP90913807A 1989-09-27 1990-09-27 Procede et dispositif de demelage et de nettoyage de produits fibreux Expired - Lifetime EP0494181B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3932282 1989-09-27
DE3932282A DE3932282A1 (de) 1989-09-27 1989-09-27 Vorrichtung zum oeffnen und reinigen von fasergut

Publications (2)

Publication Number Publication Date
EP0494181A1 true EP0494181A1 (fr) 1992-07-15
EP0494181B1 EP0494181B1 (fr) 1993-12-22

Family

ID=6390315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90913807A Expired - Lifetime EP0494181B1 (fr) 1989-09-27 1990-09-27 Procede et dispositif de demelage et de nettoyage de produits fibreux

Country Status (5)

Country Link
US (1) US5343597A (fr)
EP (1) EP0494181B1 (fr)
JP (1) JPH05500540A (fr)
DE (2) DE3932282A1 (fr)
WO (1) WO1991005095A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3913119A1 (fr) 2020-05-22 2021-11-24 Maschinenfabrik Rieter AG Système de transport de sortie dans une préparation des fibres

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IT1244148B (it) * 1990-11-05 1994-07-08 Marzoli & C Spa Procedimento e dispositivo per migliorare il grado di omogenizzazione di materiale in fiocchi di fibre, in particolare di cotone, in un miscelatore o simile
IT1283424B1 (it) * 1996-07-11 1998-04-21 Marzoli & C Spa Apritoio a doppio tamburo e relativo procedimento di apertura e pulizia ad azione progressiva per fibre in fiocco
EP1080259B1 (fr) 1998-05-26 2003-11-12 Maschinenfabrik Rieter Ag Dispositif d'enlevement de salissures
ITMI20001840A1 (it) 1999-08-30 2001-02-28 Truetzschler Gmbh & Co Kg Dispositivo per l'apertura e pulizia di materiale in fibre.
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US6263545B1 (en) 2000-02-17 2001-07-24 Akiva Pinto Batt forming apparatus
US6615455B1 (en) * 2002-09-16 2003-09-09 Akiva Pinto Fiber opening apparatus
US7386919B2 (en) * 2006-11-20 2008-06-17 Akiva Pinto Textile recycling apparatus
EP2225411A1 (fr) * 2007-12-31 2010-09-08 MARZOLI S.p.A. Ouvreur axial pour le traitement de touffes de fibres
CH702443A1 (de) * 2009-12-17 2011-06-30 Rieter Ag Maschf Reinigungsvorrichtung für Faserflocken.
CN102586956B (zh) * 2012-02-22 2013-12-25 常熟市伟成非织造成套设备有限公司 纤维开松机
CN104047074A (zh) * 2014-06-27 2014-09-17 常熟市振泰不织布有限公司 一种不织布混棉装置
WO2016003905A1 (fr) * 2014-06-29 2016-01-07 Profile Products L.L.C. Appareil d'ouverture de fibre de paillis et de milieu de culture
US10889758B2 (en) 2014-06-29 2021-01-12 Profile Products, L.L.C. Naturally dyed mulch and growing media
AU2015284367A1 (en) 2014-06-29 2017-02-02 Profile Products L.L.C. Bark and wood fiber growing medium
US11686021B2 (en) * 2014-06-29 2023-06-27 Profile Products L.L.C. Growing medium and mulch fiber opening apparatus
US10266457B2 (en) 2014-06-29 2019-04-23 Profile Products L.L.C. Bark and wood fiber growing medium
CN104294413A (zh) * 2014-10-24 2015-01-21 河北浩丽羊绒科技有限公司 双辊羊绒开松机
US9903052B2 (en) * 2015-04-17 2018-02-27 The United States Of America, As Represented By The Secretary Of Agriculture Lint cleaning system for cotton processing
CN105420856A (zh) * 2015-12-24 2016-03-23 北京中棉工程技术有限公司 一种针式皮棉清理机
CH713995A2 (de) * 2017-07-17 2019-01-31 Rieter Ag Maschf Reinigungsvorrichtung.
CN108441990B (zh) * 2018-05-25 2023-07-11 阜阳恒泰纺织有限公司 一种具有清棉功能的开棉机
CN111074355B (zh) * 2019-12-26 2022-02-08 安徽省墨凡嘉羽绒制品有限公司 一种羽绒服生产工序用绒毛洗涤设备
CN112064152B (zh) * 2020-09-08 2021-07-09 浙江理工大学 高效的防缠自动抓棉机
DE202020107466U1 (de) 2020-12-22 2022-03-25 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an oder in einer Textilmaschine und damit ausgestattete Textilmaschine
DE102020134592A1 (de) 2020-12-22 2022-06-23 Trützschler GmbH & Co Kommanditgesellschaft Verfahren zum Betreiben einer Vorrichtung an oder in einer Textilmaschine und damit betriebene Textilmaschine
DE102020134590A1 (de) * 2020-12-22 2022-06-23 Trützschler GmbH & Co Kommanditgesellschaft Abfallabführung an einer Textilmaschine mit mehreren Öffnungswalzen, damit ausgestattete Textilmaschine und Anlage
CN113308767A (zh) * 2021-06-11 2021-08-27 福建省晋江市恒丰喷胶棉织造有限公司 一种用于保暖棉制造的开松装置及其使用方法

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Publication number Priority date Publication date Assignee Title
EP3913119A1 (fr) 2020-05-22 2021-11-24 Maschinenfabrik Rieter AG Système de transport de sortie dans une préparation des fibres

Also Published As

Publication number Publication date
JPH05500540A (ja) 1993-02-04
DE59003980D1 (de) 1994-02-03
DE3932282A1 (de) 1991-04-04
WO1991005095A1 (fr) 1991-04-18
US5343597A (en) 1994-09-06
EP0494181B1 (fr) 1993-12-22

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