WO2017083911A1 - Appareil permettant de distribuer uniformément des fibres sur un transporteur - Google Patents

Appareil permettant de distribuer uniformément des fibres sur un transporteur Download PDF

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Publication number
WO2017083911A1
WO2017083911A1 PCT/AU2016/051096 AU2016051096W WO2017083911A1 WO 2017083911 A1 WO2017083911 A1 WO 2017083911A1 AU 2016051096 W AU2016051096 W AU 2016051096W WO 2017083911 A1 WO2017083911 A1 WO 2017083911A1
Authority
WO
WIPO (PCT)
Prior art keywords
fibres
conveyor
conduit
chute
common
Prior art date
Application number
PCT/AU2016/051096
Other languages
English (en)
Inventor
Eric Roberts
Original Assignee
Everbright Innovations Pty Ltd
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
Priority claimed from AU2015904736A external-priority patent/AU2015904736A0/en
Application filed by Everbright Innovations Pty Ltd filed Critical Everbright Innovations Pty Ltd
Publication of WO2017083911A1 publication Critical patent/WO2017083911A1/fr

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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
    • D04H1/736—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged characterised by the apparatus for arranging fibres

Definitions

  • the present invention relates to an apparatus for evenly distributing fibres onto a conveyor. More particularly, but not exclusively, the invention relates to distributing recycled fibres onto a conveyor and to forming a fibrous web.
  • Examples of the invention seek to solve, or at least ameliorate, one or more disadvantages of previous method and apparatus for distributing fibres onto a conveyor.
  • an apparatus for evenly distributing fibres onto a conveyor comprising: at least one screw feeder for distributing fibres across the conveyor, the or each screw feeder being disposed in a respective conduit extending transverse to the conveyor and configured for displacing fibres, the or each conduit having a plurality of spaced apart distribution openings in a lower portion thereof for providing fibres into a respective delivery chute associated with each conduit, wherein the delivery chute of each conduit converges into a common chute, and
  • a plurality of vertically spaced pairs of spaced apart rollers having blades formed thereon and disposed between the common chute and the conveyor and configured for mixing fibres falling from the delivery chute toward the conveyor.
  • the rollers that are vertically spaced are transversely offset so that blades from each roller can pass beside blades of a corresponding vertically spaced roller.
  • the rollers from each pair are configured to rotate in opposite directions.
  • the apparatus comprises three pairs of spaced apart rollers. Preferably, the spacing of the lowermost pair is less than the spacing of the uppermost pair.
  • the common chute can have an upper roller with blades formed thereon in a lower portion thereof for breaking clumps of fibres falling from the common chute.
  • the common chute constricts toward the upper roller.
  • the apparatus can include a pair of parallel screw feeders extending across the conveyor.
  • the screw feeders may be configured to displace fibres in opposite directions.
  • a common end of each conduit is connected on one side of the conveyor to allow fibres to travel across the conveyor in both directions.
  • an end of each conduit that is not connected is in communication with a collection bin so that fibres returning from the conduits are returned to the collection bin where they are mixed with fresh material and returned to the conduits.
  • a side of each delivery chute is defined by a conveyor extending into the common chute.
  • the size of an opening of each delivery chute can be varied.
  • the distribution openings of each conduit can be aligned with the distribution openings of the other conduit.
  • Figure 1 is an end view of an upper portion of an apparatus for evenly distributing fibres onto a conveyor of one embodiment of the invention
  • Figure 2 is plan view of the apparatus of Figure 1;
  • Figure 3 is a schematic sectional side view of the apparatus of Figure 1;
  • Figure 4 is a schematic side view of the apparatus of Figure 1;
  • Figure 5 is a close end view of the apparatus of Figure 1;
  • Figure 6 is a close side view of the apparatus of Figure 1;
  • Figure 7 is a schematic side view of a complete apparatus for evenly distributing fibres onto a conveyor of one embodiment of the invention.
  • Figure 8 is a schematic sectional side view of a lower portion of the apparatus.
  • FIG. 1 there is shown an upper portion 10a of an apparatus 10 according to a preferred embodiment of the present invention.
  • the apparatus 10 is configured for evenly distributing fibres onto a conveyor.
  • the upper portion 10a is in the form of a feeder for a mixing head and is configured to be used with a mixing head 10b illustrated in Figures 7 and 8 and forming a lower portion of the apparatus 10.
  • the apparatus 10 comprises at least one screw feeder, though in the illustrated embodiment the apparatus 10 includes a pair of screw feeders 12, 14, each driven by a respective motor 16, 18 and configured for distributing fibres across the conveyor. Each screw feeder is disposed in a respective conduit 20, 22 extending transverse to the conveyor and configured for displacing fibres in opposite directions. As illustrated in Figure 2, screw feeder 12 is configured for displacing fibres in direction X toward the left of the page and screw feeder 14 is configured for displacing fibres in direction Y to the right of the page.
  • the screw feeders 12, 14 may be configured to distribute fibres in the same direction. It will also be appreciated that the operating speed of screw feeders 12 and 14 may be varied in accordance with the type of fibre being distributed and the size of web to be formed.
  • Each conduit 20, 22 has a plurality of spaced apart distribution openings, schematically illustrated as arrow 24 in Figure 1, formed in a lower portion of the conduit 20, 22 for providing fibres into a respective delivery chute 26, 28 (refer Figure 3) associated with each conduit 20, 22.
  • the delivery chute 26, 28 of each conduit 20, 22 converges into a common chute 32, in which a roller 34 having blades formed thereon is disposed for mixing and breaking up fibres falling from the common chute 32 toward the conveyor.
  • the roller 34 is configured for breaking clumps of fibres falling from the common chute 32 so as to prevent fibres sticking together in clumps. So as to direct the falling fibres onto the roller 34, the common chute 32 constricts toward the roller 34.
  • each delivery chute 26, 28 is defined by a respective conveyor 36, 38 extending into the common chute 32 for encouraging fibres to fall toward the roller 34.
  • Each conveyor preferably has a rough surface to assist in the mixing and break up of the fibres, as well as urging the fibres in a downward direction.
  • each delivery chute 26, 28 An inner side of each delivery chute 26, 28 is defined by an expandable deflector 30, which is operable to expand a distance Z into the delivery chutes 26, 28 so that the size of an opening of each delivery chute 26, 28 can be varied by varying the size of the deflector 30.
  • the amount of fibres passing through each distribution opening can be controlled so as to vary the height of the fibrous web being formed.
  • the deflector 30 can also be used to prevent long fibres passing toward the conveyor.
  • the distribution openings 24 of each conduit can be aligned with the distribution openings of the other conduit, though in other forms they may be offset.
  • the spacing and location of the distribution openings 24 is selected so as to provide an even distribution of fibres across the conveyor.
  • each conduit 20, 22 is connected on one side of the conveyor by conduit 40 to allow fibres to travel across the conveyor in each direction.
  • fibres will travel in direction X, with some escaping the conduit 20 through the distribution openings 24, and return along direction Y with further fibres escaping conduit 22 through the distribution openings 24 as they return, thereby resulting in an even distribution of fibres across the conveyor.
  • each end of the conduit may be connected to a source of fibres.
  • each may act independently and the end of each conduit may be separately connected to a source of fibres and the fibres may travel in either direction across the conveyor.
  • each conduit 20, 22 that is not connected via conduit 40 is in communication with a collection bin 42 so that fibres returning from the conduits 20, 22 are returned to the collection bin 42 where they are mixed with fresh material and returned to the conduits 20, 22.
  • Collection bin 42 is in communication with supply conduit 46 for supplying fibres to conduit 22 for distribution by feed screw 12, and in communication with return conduit 44 for returning fibres from conduit 22, thereby providing a distribution circuit for fibres.
  • Figures 7 and 8 illustrate apparatus 10 fitted with a distribution head 10b including a plurality of vertically spaced pairs 52, 54, 56 of spaced apart rollers 52a, 52b, 54a, 54b, 56a, 56b having blades formed thereon and disposed between the common chute 32 and the conveyor and configured for mixing fibres falling from the common 32 chute toward the conveyor.
  • a distribution head 10b including a plurality of vertically spaced pairs 52, 54, 56 of spaced apart rollers 52a, 52b, 54a, 54b, 56a, 56b having blades formed thereon and disposed between the common chute 32 and the conveyor and configured for mixing fibres falling from the common 32 chute toward the conveyor.
  • rollers that are vertically spaced, 52a/54a/56a and 52b/54b/56b are transversely offset (i.e. across the width of the conveyor) so that blades from each roller can pass beside blades of the spaced roller.
  • the blades taper towards a tip and have an aspect ratio in the order of 18 to 20: 1 from the base to the tip.
  • rollers are offset so that the spacing between adjacent is approximately 5mm.
  • larger fibre particles cannot pass without breaking up.
  • rollers from each pair 52, 54, 56 are configured to rotate in opposite directions.
  • rollers 52a, 54a, 56a are illustrated in Figure 8 as rotating counter clockwise while rollers 52b, 54b, 56b rotate clockwise.
  • the fibres fall they are engaged by blades of the rollers and lifted into the air, further mixing the fibres and breaking up any clumps.
  • blades of the rollers may take many forms and that each roller may be differently configured.
  • the blades of the rollers are 270mm long and 5mm thick.
  • conduits 20, 22 may take forms other than circular and may be an open trough for example.
  • Rollers 52, 54, 56 may be driven by variable speed motors, such as variable speed drives, that their operation can be independently controlled as required, so that apparatus 10 can be used across a range of different fibres and webs.
  • rollers can also be driven in various combinations of rotation and speed.
  • roller 52a rotates clockwise and roller 52b rotates anti-clockwise
  • roller 56a rotates anti-clockwise while roller 56b rotates clockwise.
  • roller pair 54 roller 54a rotates anti-clockwise and roller 54b rotates clockwise, with this roller pair 54 running at between 20% and 80% faster than pairs 52 and 56. This creates a turbulence zone which further facilitates the fibre mixing and distribution.
  • the apparatus 10 allows for improved mixing of fibres, approaching a normal distribution of fibre size and length, and provides a more even distribution of fibres across a conveyor, thereby allowing the apparatus to be used with many different types of fibres, in particular recycled fibres.
  • Specific examples fibres that can be used include carbon fibres, cottons and synthetics.

Landscapes

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

Abstract

L'invention concerne un appareil permettant de distribuer uniformément des fibres sur un transporteur, comprenant : au moins un distributeur à vis permettant de répartir des fibres sur le transporteur, chaque distributeur à vis étant disposé dans un conduit respectif s'étendant transversalement vers le transporteur et étant conçu afin de déplacer les fibres, chaque conduit ayant une pluralité d'ouvertures de distribution espacées dans sa partie inférieure afin de fournir des fibres dans une goulotte de distribution respective associée à chaque conduit, la goulotte de distribution de chaque conduit convergeant dans une goulotte commune, et une pluralité de paires espacées verticalement de rouleaux espacés les uns des autres ayant des pales et disposés entre la goulotte commune et le transporteur et conçus afin de mélanger des fibres tombant de la goulotte de distribution vers le transporteur.
PCT/AU2016/051096 2015-11-17 2016-11-16 Appareil permettant de distribuer uniformément des fibres sur un transporteur WO2017083911A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2015904736A AU2015904736A0 (en) 2015-11-17 Apparatus for evenly distributing fibres onto a conveyor
AU2015904736 2015-11-17

Publications (1)

Publication Number Publication Date
WO2017083911A1 true WO2017083911A1 (fr) 2017-05-26

Family

ID=58717108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2016/051096 WO2017083911A1 (fr) 2015-11-17 2016-11-16 Appareil permettant de distribuer uniformément des fibres sur un transporteur

Country Status (1)

Country Link
WO (1) WO2017083911A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112647196A (zh) * 2020-12-29 2021-04-13 李启虎 一种纤维纺织机及纺织工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2416944A1 (de) * 1973-06-18 1975-01-09 Spinnerei Karl Marx Veb Vorrichtung zum oeffnen und mischen von faserballen
US4734957A (en) * 1985-12-04 1988-04-05 Hergeth Hollingsworth Gmbh Feeding duct
EP0485014B1 (fr) * 1990-11-06 1997-09-03 FRATELLI MARZOLI & C. S.p.A. Appareil de mélange pour matériau fibreux, notamment pour les fibres de coton
EP0877105A1 (fr) * 1997-05-07 1998-11-11 Maschinenfabrik Rieter Ag Appareil de préparation à la filature
DE10053622A1 (de) * 1999-10-29 2001-07-12 Ake Innotech Gmbh Automatisier Faserspender zur Herstellung von Faservliesen und seine Anwendung
US20070163087A1 (en) * 2006-01-16 2007-07-19 Akiva Pinto Fiber web forming apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2416944A1 (de) * 1973-06-18 1975-01-09 Spinnerei Karl Marx Veb Vorrichtung zum oeffnen und mischen von faserballen
US4734957A (en) * 1985-12-04 1988-04-05 Hergeth Hollingsworth Gmbh Feeding duct
EP0485014B1 (fr) * 1990-11-06 1997-09-03 FRATELLI MARZOLI & C. S.p.A. Appareil de mélange pour matériau fibreux, notamment pour les fibres de coton
EP0877105A1 (fr) * 1997-05-07 1998-11-11 Maschinenfabrik Rieter Ag Appareil de préparation à la filature
DE10053622A1 (de) * 1999-10-29 2001-07-12 Ake Innotech Gmbh Automatisier Faserspender zur Herstellung von Faservliesen und seine Anwendung
US20070163087A1 (en) * 2006-01-16 2007-07-19 Akiva Pinto Fiber web forming apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112647196A (zh) * 2020-12-29 2021-04-13 李启虎 一种纤维纺织机及纺织工艺

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