EP2449156B1 - Dispositif d'ouverture axiale - Google Patents

Dispositif d'ouverture axiale Download PDF

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Publication number
EP2449156B1
EP2449156B1 EP10740306.5A EP10740306A EP2449156B1 EP 2449156 B1 EP2449156 B1 EP 2449156B1 EP 10740306 A EP10740306 A EP 10740306A EP 2449156 B1 EP2449156 B1 EP 2449156B1
Authority
EP
European Patent Office
Prior art keywords
opener
compartment
fibre
tufts
processed
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.)
Not-in-force
Application number
EP10740306.5A
Other languages
German (de)
English (en)
Other versions
EP2449156A1 (fr
Inventor
Mario Mascheretti
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.)
Marzoli Machines Textile SRL
Original Assignee
Marzoli Machines Textile SRL
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Publication date
Application filed by Marzoli Machines Textile SRL filed Critical Marzoli Machines Textile SRL
Publication of EP2449156A1 publication Critical patent/EP2449156A1/fr
Application granted granted Critical
Publication of EP2449156B1 publication Critical patent/EP2449156B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/04—Opening or cleaning fibres, e.g. scutching cotton by means of beater arms
    • 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
    • D01G9/06—Opening or cleaning fibres, e.g. scutching cotton by means of toothed members
    • 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
    • D01G9/12—Combinations of opening or cleaning machines

Definitions

  • the present invention relates to an axial opener for the treatment of fibres in tufts.
  • the treatments are performed on different machines, in that, to obtain best results, they need to be repeated a number of times in an increasingly thorough manner.
  • the fibres are picked from bales by a picker, so as to obtain tufts transported by currents of air.
  • the fibre in tufts is subsequently treated in a device for removing impurities, such as stones or nonferrous materials mixed with the tufts, before passing to an axial opener, where the tufts undergo a first opening of the fibre and a first separation from the impurities.
  • impurities such as stones or nonferrous materials mixed with the tufts
  • the fibres undergo further cleaning, alignment and drawing operations on horizontal openers and carding machines to obtain the fibre web.
  • the design of the axial opener proves particularly important in that it is the first machine on the processing line, where the fibre in tufts is opened and liberated of its coarser impurities.
  • the condition in which the fibre in tufts leaves the axial opener significantly influences the efficacy of the treatments performed downline of said opener.
  • the purpose of the present invention is to make an axial opener for a fibre processing line able to overcome the drawbacks of the known art and to satisfy the above requirements, especially to process large quantities of fibre while maintaining high quality and homogeneous characteristics of the processed tufts.
  • reference numeral 1 globally denotes an assembly for the treatment of fibres in tufts, constituting a part of a fibre processing line.
  • the assembly shown comprises a feed pipe 2 for the transport of the fibre F to be processed, for example coming from a picker.
  • the assembly 1 comprises two separate feed pipes 2a, 2b ( figure 2b ).
  • the assembly comprises a feed device 4 suitable for separating the dusty air from the fibre.
  • the fibre F to be processed is transported by the device 4 through a suction effect exerted by a fan 5 housed in said device 4.
  • An air expulsion pipe 6 protrudes from the device 4 for the release of the dusty air A sucked in.
  • the fan is housed externally to the device 4.
  • the assembly 1 comprises an axial opener 8, positioned downline of the feed device 4, comprising an input pipe 10 which connects it to said feed device 4.
  • the input pipe 10 extends mainly along an input axis X, positioned substantially vertical to a ground plane T which the opener lies on.
  • the opener 8 comprises a box-like casing 12, towards which the input pipe 10 transports the fibre to be processed.
  • the input pipe 10 comprises an initial section 14 of decreasing cross-section, for example linearly upline to downline, in other words, in the assembly shown, from the feed device 4 towards the casing 12 of the opener.
  • the opener comprises a first opener roller 16, housed in a first compartment 18, motorised and rotatable around a first rotation axis Y.
  • the first roller 16 is provided with first opening means distributed along its lateral surface, suitable for entangling the tufts to open them when pulled.
  • said opening means comprise a plurality of pegs 20, projecting from the lateral surface of the roller, in a rectilinear, broken or ramified direction to have multiple points.
  • the pegs 20 are positioned along an imaginary helicoidal line traced around the lateral surface of the roller.
  • the opener 8 comprises, in addition, a second opener roller 22, housed in a second compartment 24, motorised and rotatable around a substantially parallel second rotation axis Z and, for example, coplanar to a horizontal plane (in relation to the ground plane T) passing through the rotation axis Y of the first roller 16.
  • the second roller 22 is provided with second opening means distributed along its lateral surface, for example structurally and functionally similar to the opening means described above.
  • the input pipe 10 feeds the fibre to be processed F to the first 18 and second compartment 24, contemporaneously.
  • the opener 8 comprises a single exit pipe 30, which extends from where the two compartments 18, 24 join or from the communal intermediate compartment.
  • the assembly 1 comprises a fan to which the exit pipe 30 is connected, to suck the fibre being processed through the compartments 18, 24, from the input pipe 10 towards the exit pipe 30.
  • the opener 8 comprises, in addition, separating means, partially positioned upline of the cleaner rollers, suitable for separating the flow of fibres to be processed F and direct it towards the first compartment 18 and towards the second compartment 24 of the opener 8.
  • the separating means comprise a separation wall 42, having a free side facing or in the input pipe 10, on the incoming side of the fibre to be processed and separated so as to form two separate passages of the fibre towards the two compartments 18, 24 of the opener 8.
  • the separation wall 42 extends partially into the input pipe 10, to separate the fibre before this reaches the compartments 18, 24 where the opener rollers 16, 22 are housed.
  • the separation wall 42 in addition, extends along the rotation axis Y, Z of the rollers 16, 22, so as to keep the first compartment 18 separate from the second compartment 24.
  • the fibre to be processed F is thereby separated into two flows to be processed, separately processed by the first roller 16 and by the second roller 22, without mutual interference.
  • the processed fibre is reunited downline of the two opener rollers and is sent for subsequent processing through the exit pipe 30.
  • the separation wall 42 comprises two portions:
  • the separation wall 42 extends solely downline of the input pipe, without penetrating it; in other words, according to said embodiment, the side of the separation wall 42 is positioned at the end of the input pipe 10.
  • the separation wall 42 comprises solely the longitudinal portion 42a, without any bosses going back up the input pipe 10 in the direction of the incoming fibre F.
  • the separation wall 42 extends with its axial portion 42b all along the input pipe 10, even protruding out of it, on the side connected to the feed device 4; in other words, according to such embodiment, the side of the separation wall 42 extends as far as the roller of the feed device 4.
  • the separating means comprise a blower device 46 suitable for blowing air to deviate the incoming flow of tufts towards the first and the second compartment.
  • the blower device 46 has air exit holes positioned along the side facing the incoming flow of fibres.
  • the holes are positioned along the free side of the axial portion, facing the incoming flow of fibre.
  • the opener 8 comprises cleaning means suitable to cooperate with a respective roller 16, 22 to separate impurities from the fibres being processed.
  • the cleaning means comprise a grid 50 which extends in an arch around its respective cleaning roller 16, 22 along said rotation axis Y, Z, in the area below this in the direction of the force of gravity.
  • the grids 50 are positioned under the rollers 16, 22, so that by centrifugal force and reciprocal collision of the fibres, impurities such as husks are separated from the tufts being processed.
  • the grids 50 are adjustable, so as to enable adjustment according to the type and degree of dirt of the fibre to be processed.
  • the impurities separated from the fibre are removed from the opener by appropriate conveyance and transport devices of the accumulated impurities.
  • the fibre to be processed F in other words the fibre in tufts still considerably dirty and mixed with impurities, is transported, for example aspirated, towards the feed device 4, where the small impurities and dust are separated by collision
  • the fibre to be processed F is then sent to the input pipe 10 which contemporaneously feeds the two compartments 18, 24, separating the flow of fibre into two flows, each processed by an opener roller.
  • the flow of fibre is divided between the two compartments by deviator means, for example functioning with a jet of air.
  • the separation which is performed downline of the separator device, takes place in fact in a section in which the fibre is already evenly spread over the width of the feed pipe to the rollers and in which the speed of the flow is low, helped by the force of gravity.
  • this makes the separation less influenced by agents such as the high speed of the flow or different suction powers, which might otherwise cause one compartment to fill more or less than the other, as happens in T or Y separators positioned along the feed pipes to the machines.
  • each opener roller processes about half of the total fibres being treated on the processing line, advantageously minimising the quantity of fibre processed in the individual compartments and the differences in the degree of processing of the two flows of fibre, with excellent quality results of the processing performed and of the homogeneity of the tufts.
  • the tufts entangled on the pegs of the opening means tend to pass from one peg to another, progressively moving towards the exit, for example by air suction, undergoing a sort of unravelling which opens the tufts.
  • the tufts dragged in rotation collide against the grid 50, so as to cause the separation of further impurities such as husks.
  • the opener according to the present invention resolves the drawbacks of the known art inasmuch as it renders unnecessary the design of openers for large quantities of fibre difficult to construct and unacceptably large while also enabling high quality, uniformly processed fibre tufts to be obtained.
  • the opener according to the present invention makes it possible to reduce construction costs compared to constructing two independent fibre processing lines.
  • the opener according to the present invention makes it possible to concentrate in a single machine the salient treatments, high technological and important for the quality of the fibre, dividing the flow of fibre to achieve high quality, while the transport of the fibre between the various machines occurs for the entire flow of fibre in a single pipe.

Landscapes

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

Claims (15)

  1. Dispositif d'ouverture axial (8) pour le traitement de fibres en touffes comprenant:
    - un tuyau d'entrée (10) pour l'amenée de la fibre à traiter;
    - un premier rouleau de dispositif d'ouverture (16) logé dans un premier compartiment (18), pouvant tourner autour d'un premier axe de rotation (Y), doté de premiers moyens d'ouverture distribués le long de sa surface latérale, adapté pour enchevêtrer les touffes afin de les ouvrir lors de la traction;
    - un second rouleau de dispositif d'ouverture (22) logé dans un second compartiment (24), pouvant tourner autour d'un second axe de rotation (Z), doté de seconds moyens d'ouverture distribués le long de sa surface latérale, dans lequel le tuyau d'entrée amène la fibre à traiter au premier et au second compartiment;
    - un seul tuyau de sortie (30) communiquant avec la jonction entre le premier et le second compartiment ou un compartiment commun intermédiaire pour amener la fibre en vue d'un traitement ultérieur;
    - des moyens de séparation positionnés partiellement en amont des rouleaux d'ouverture (16, 28) séparant le flux de fibres à traiter à l'aide de la force de gravité et le dirigeant en partie vers le premier compartiment (18) et en partie vers le second compartiment (24) du dispositif d'ouverture.
  2. Dispositif d'ouverture selon la revendication 1, dans lequel lesdits moyens de séparation séparent les premier et second compartiments l'un de l'autre pour éviter le transit de fibre en traitement dans le premier compartiment vers le second compartiment et vice versa.
  3. Dispositif d'ouverture selon la revendication 1 ou 2, dans lequel lesdits moyens de séparation comprennent une paroi de séparation (42) avec un côté faisant face au flux entrant de touffes à séparer.
  4. Dispositif d'ouverture selon la revendication 3, dans lequel la paroi de séparation comprend une partie longitudinale (42a) qui s'étend le long de l'axe de rotation des rouleaux pour séparer les deux compartiments.
  5. Dispositif d'ouverture selon la revendication 4, dans lequel la paroi de séparation comprend une partie axiale (42b) qui s'étend le long du tuyau d'entrée (10) c'est-à-dire dans la direction du flux entrant de touffes à séparer.
  6. Dispositif d'ouverture selon la revendication 5, dans lequel la partie axiale (42b) de la paroi de séparation (42) s'étend le long du tuyau d'entrée (10) en faisant saillie de celui-ci à l'endroit où il est relié à la machinerie en amont du dispositif d'ouverture.
  7. Dispositif d'ouverture selon l'une quelconque des revendications précédentes, dans lequel les moyens de séparation comprennent une soufflante soufflant de l'air pour dévier le flux entrant de touffes vers les premier et second compartiments.
  8. Dispositif d'ouverture selon la revendication 7, dans lequel ladite soufflante présente des trous de sortie le long du côté libre de la paroi de séparation.
  9. Dispositif d'ouverture selon les revendications 5 et 8, dans lequel les trous sont positionnés le long du côté libre de la partie axiale de la paroi de séparation.
  10. Dispositif d'ouverture selon l'une quelconque des revendications précédentes, dans lequel les premiers et seconds axes de rotation sont parallèles.
  11. Dispositif d'ouverture selon l'une quelconque des revendications précédentes, dans lequel les premier et second compartiments sont contenus dans un seul réceptacle de type boîte (12).
  12. Dispositif d'ouverture selon l'une quelconque des revendications précédentes, dans lequel les dispositifs d'ouverture comprennent une pluralité de chevilles (20) faisant saillie de la surface latérale du rouleau.
  13. Dispositif d'ouverture selon l'une quelconque des revendications précédentes, comprenant des moyens de nettoyage coopérant avec un rouleau respectif pour séparer les impuretés des fibres en traitement.
  14. Assemblage (1) pour le traitement de fibres en touffes, comprenant :
    - un dispositif d'ouverture axial (8) fabriqué selon l'une quelconque des revendications précédentes,
    - un ventilateur (40) ;
    dans lequel le tuyau de sortie (30) du dispositif d'ouverture est relié audit ventilateur pour aspirer les touffes en traitement au travers des compartiments, du tuyau d'entrée vers le tuyau de sortie et pour les mélanger.
  15. Assemblage (1) pour le traitement de fibres en touffes, comprenant :
    - un tuyau d'amenée (2) des fibres en traitement ;
    - un dispositif d'alimentation (4) séparant les impuretés relativement lourdes de la fibre transportée, relié au tuyau d'amenée ;
    - un dispositif d'ouverture axial (8) fabriqué selon l'une quelconque des revendications 1 à 13 ;
    dans lequel le tuyau d'entrée (10) du dispositif d'ouverture est relié au dispositif d'alimentation (4).
EP10740306.5A 2009-06-30 2010-06-29 Dispositif d'ouverture axiale Not-in-force EP2449156B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBS2009A000121A IT1395044B1 (it) 2009-06-30 2009-06-30 Apritoio a flusso assiale
PCT/IB2010/052970 WO2011001379A1 (fr) 2009-06-30 2010-06-29 Dispositif d'ouverture axiale

Publications (2)

Publication Number Publication Date
EP2449156A1 EP2449156A1 (fr) 2012-05-09
EP2449156B1 true EP2449156B1 (fr) 2015-03-04

Family

ID=41683206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10740306.5A Not-in-force EP2449156B1 (fr) 2009-06-30 2010-06-29 Dispositif d'ouverture axiale

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Country Link
EP (1) EP2449156B1 (fr)
CN (1) CN102482803A (fr)
BR (1) BRPI1012940A2 (fr)
IT (1) IT1395044B1 (fr)
WO (1) WO2011001379A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBS20110114A1 (it) * 2011-08-05 2013-02-06 Marzoli Spa Apritoio per fibra in fiocchi di una linea di preparazione alla cardatura
US9801813B2 (en) 2013-10-17 2017-10-31 Sentiss Pharma Private Limited Preservative-free ophthalmic pharmaceutical formulation
CN109518310B (zh) * 2019-01-15 2024-04-02 天津工业大学 一种异纤分拣机剔除系统喷管板

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE198422C (fr) *
DE1073915B (de) * 1960-01-21 Whitin Machine Works, Whitinsville, Mass. (V. St. A.) Maschine zum Öffnen und Reinigen von Fasergut
ITTO20010518A1 (it) * 2001-05-31 2002-12-01 Marzoli Spa Apritoio e procedimento di apritura.
DE10214389A1 (de) * 2002-03-30 2003-10-16 Truetzschler Gmbh & Co Kg Vorrichtung in der Spinnereivorbereitung zum Abscheiden der Transportluft beim Beschicken von Fasermaterial, z.B. Baumwolle o. dgl., zu einer Verarbeitungsmaschine
CN2811335Y (zh) * 2005-06-08 2006-08-30 江苏迎阳无纺机械有限公司 开松机
CN2825661Y (zh) * 2005-09-15 2006-10-11 刘继东 棉花开松装置
US20090101294A1 (en) * 2007-10-23 2009-04-23 Fairfield Processing Corp. Process for making bamboo fiberfill and articles thereof
CN201236234Y (zh) * 2008-07-04 2009-05-13 张祺田 单打手强力清棉机改良结构

Also Published As

Publication number Publication date
CN102482803A (zh) 2012-05-30
EP2449156A1 (fr) 2012-05-09
WO2011001379A1 (fr) 2011-01-06
ITBS20090121A1 (it) 2011-01-01
IT1395044B1 (it) 2012-09-05
BRPI1012940A2 (pt) 2018-03-20

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