WO2001025519A1 - Toile a flux d'air regule pour transporteur par gravite pneumatique - Google Patents

Toile a flux d'air regule pour transporteur par gravite pneumatique Download PDF

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Publication number
WO2001025519A1
WO2001025519A1 PCT/US2000/027845 US0027845W WO0125519A1 WO 2001025519 A1 WO2001025519 A1 WO 2001025519A1 US 0027845 W US0027845 W US 0027845W WO 0125519 A1 WO0125519 A1 WO 0125519A1
Authority
WO
WIPO (PCT)
Prior art keywords
filler
yams
binder
layers
yam
Prior art date
Application number
PCT/US2000/027845
Other languages
English (en)
Inventor
Gary B. Springer
John E. Hayes, Jr.
Original Assignee
American Solid Woven Corporation
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 American Solid Woven Corporation filed Critical American Solid Woven Corporation
Priority to AU10755/01A priority Critical patent/AU1075501A/en
Publication of WO2001025519A1 publication Critical patent/WO2001025519A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D27/00—Woven pile fabrics
    • D03D27/02—Woven pile fabrics wherein the pile is formed by warp or weft
    • D03D27/10—Fabrics woven face-to-face, e.g. double velvet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2433/00—Closed loop articles
    • B32B2433/02—Conveyor belts

Definitions

  • the present invention relates to airflow fabrics that are used in air gravity conveyors; in particular, the present invention relates to an improved weaving pattern for an airflow fabric.
  • Air gravity conveyors are useful in conveying granulated and powdered materials, such as concrete, flour, alumina, barite, and many other dry powders.
  • a typical air gravity conveyor is illustrated in Fig. 1.
  • the air gravity conveyor 200 comprises a hopper 204 that feeds the powdered material 202 onto an airflow fabric, which is enclosed within a chute 208.
  • the airflow fabric separates the upper and lower plenum 210 and 212 of the chute 208 and extends the entire length of the chute 208. Pressurized air is introduced into the lower plenum through the air inlet 206, which is forced through the airflow fabric and flows into the upper plenum 210.
  • Airflow fabric is constructed using various weaving patterns, depending upon the desired porosity. Prior art weaving patterns showing a high, medium and low porosity are illustrated in Figs. 2, 3, and 4, respectively. These weaving patterns have common characteristics: a plurality of filler yarn layers that are woven together by at least two binder yarns. With reference to the high porosity fabric illustrated in Fig.
  • a plurality of filler yarns 302 runs longitudinally the length of the fabric 300 and are held together by a pair of warp yarns 304, which are woven around the filler yarn 302 in a sinusoidal manner.
  • the warp yarns 304 weave in opposite directions around the filler yarns 302, much like a two sinusoidal functions that are 180° out of phase.
  • Three layers of the filler yarns 302, with surrounding warp yarn 304, are woven together using binder yarn 306.
  • the binder yarn 306 is woven in the same manner as the warp yarn 304, much like a pair of sinusoidal functions that are 180° out of phase. As can be seen in Figs.
  • decreasing the porosity of the fabric 300 dramatically increases the number of filler yarns 302 and corresponding warp yarns 304.
  • the weight of the resulting fabric substantially increases, while the fabric becomes less flexible.
  • the weaving patterns that are currently employed within the art require a relatively large amount of yam, which increases manufacturing time and the weight of the resulting fabric.
  • the present invention is an improved weaving pattern for airflow fabric.
  • the pattern uses gut construction positioned between a pair of filler yam layers.
  • Each filler yam layer is bound using a pair of warp yams that weave in opposite directions, much like a pair of sinusoidal functions that are 180° out of phase.
  • With the high and medium porosity fabric only a single binder yarn surrounds the layers of filler yam. In low porosity, a pair of binder yams are used, but the yams are woven more like sinusoidal functions that are 90° out of phase.
  • a major feature of the present invention is the weaving pattern, which uses a unique binder arrangement and gut construction. Instead of using a pair of binder yams, the present invention uses of a single binder yam to secure the filler yam. With the use of gut construction, the fabric reduces the layers of filler yarn needed. As a result, the total amount of yam needed for the fabric is reduced.
  • a major advantage of the present invention is the use of less yarn to manufacture the fabric. As a result, the manufacturing time to produce the fabric is also reduced. With fewer filler yarns, the fabric can be produce much more quickly and inexpensively.
  • Fig. 1 is a side view of a prior art air gravity conveyor with using an airflow fabric
  • Fig. 2 is a side cross-sectional view of a high porosity prior art airflow fabric
  • Fig. 3 is a side cross-sectional view of a medium porosity prior art airflow fabric
  • Fig. 4 is a side cross-sectional view of a low porosity prior art airflow fabric
  • Fig. 5 is a side cross-sectional view of a high porosity airflow fabric, according to a preferred embodiment of the present invention
  • Fig. 6 is a side cross-sectional view of a medium porosity airflow fabric, according to a preferred embodiment of the present invention.
  • Fig. 7 is a side cross-sectional view of a low porosity airflow fabric, according to a preferred embodiment of the present invention.
  • the present invention is an improved weaving pattern for airflow fabric.
  • the weaving patterns showing a high, medium and low porosity are illustrated in Figs. 5, 6, and 7, respectively.
  • the fabric is illustrated with the yarns positioned in a spaced-apart manner.
  • the yam will be preferably woven to a tightness that is common in the industry.
  • each uses gut positioned between at least one pair of filler yarn layers.
  • the binder yam position in each pattern also differs from the prior art. With the high and medium porosity fabric, only a single binder yam surrounds the layers of filler yam.
  • Gut construction refers to a mesh that extends longitudinally the length of the fabric. Referring to Fig. 5, a fabric with high porosity construction is illustrated. A plurality of filler yarns 30 run longitudinally the length of the fabric 10 and are held together by a pair of warp yams 40, which are woven around filler yam 30 in a sinusoidal manner. Warp yams 40 weave in opposite directions around filler yams 30, much like a pair of sinusoidal functions that are 180° out of phase. Gut construction 20 is positioned between the two layers of filler yam 30. A single binder yam 50 is woven around the layers of filler yam
  • a fabric with medium porosity construction is illustrated.
  • a plurality of filler yams 30 run longitudinally the length of the fabric 10 and are held together by a pair of warp yams 40, which are woven around filler yarn 30 in a sinusoidal manner like a pair of sinusoidal functions that are 180° out of phase.
  • Gut construction 20 is positioned between the two layers of filler yam 30. In order to decrease porosity, the gut construction 20 is increased in thickness.
  • single binder yam 50 is woven around the layers of filler yam 30 in a sinusoidal manner, such that the binder yam is wrapped around each filler yam 30.
  • the present invention uses much less yam to create the desired air flow characteristics.
  • a fabric with low porosity construction is illustrated.
  • a plurality of filler yams 30 run longitudinally the length of the fabric 10 and are held together by a pair of warp yams 40, which are woven around filler yam 30 in a sinusoidal manner like a pair of sinusoidal functions that are 180° out of phase.
  • Two layers of gut construction 20 are positioned between the three layers of filler yam 30. In order to decrease porosity, the gut construction 20 is increased in thickness.
  • a first binder yam 50 and second binder yam 52 are woven around the layers of filler yam 30 in a sinusoidal manner, such that the pair of binder yams 50 and 52 are woven like a pair of sinusoidal functions that are 90° out of phase with each other.

Abstract

Cette invention se rapporte à un motif tissé amélioré pour une toile à flux d'air, ce motif utilisant une construction en boyau (20) placée entre une paire de couches de fils de charge (30). Chaque couche de fils de charge (30) est liée à l'aide d'une paire de fils de chaîne (40) qui sont tissés dans des directions opposées, à la façon de deux fonctions sinusoïdales déphasées selon un angle de 180°. Lors de l'utilisation de la toile dans des conditions de porosité élevées et moyennes, un seul fil de liaison (50) entoure les couches de fils de charge. Dans des conditions de faible porosité, une paire de fils de liaison (50 et 52) sont utilisés, mais ces fils sont tissés à la façon de deux fonctions sinusoïdales déphasées selon un angle de 90°.
PCT/US2000/027845 1999-10-06 2000-10-06 Toile a flux d'air regule pour transporteur par gravite pneumatique WO2001025519A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU10755/01A AU1075501A (en) 1999-10-06 2000-10-06 Regulated airflow fabric for an air gravity conveyor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41366299A 1999-10-06 1999-10-06
US09/413,662 1999-10-06

Publications (1)

Publication Number Publication Date
WO2001025519A1 true WO2001025519A1 (fr) 2001-04-12

Family

ID=23638124

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/027845 WO2001025519A1 (fr) 1999-10-06 2000-10-06 Toile a flux d'air regule pour transporteur par gravite pneumatique

Country Status (2)

Country Link
AU (1) AU1075501A (fr)
WO (1) WO2001025519A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6427728B1 (en) 1998-12-14 2002-08-06 The Goodyear Tire & Rubber Company Conveyor belting with reinforcing fabric formed from three interlaced layers
WO2007093109A1 (fr) * 2006-02-15 2007-08-23 Sinoma Science & Technology Co. Ltd. Tissu à liaison de couches, creux, tridimensionnel
WO2010046842A1 (fr) * 2008-10-21 2010-04-29 Filterteks Filtre Ve Kece Sanayi A.S. Courroie de transport pneumatique angulaire
CN102268765A (zh) * 2010-06-07 2011-12-07 罗莱家纺股份有限公司 一种全棉立体面料及其制造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527488A (en) * 1950-04-10 1950-10-24 Huron Portland Cement Company Apparatus for conveying materials
US4261392A (en) * 1978-08-09 1981-04-14 Scapa Dryers, Inc. Dryer felt having soft, bulky surface
US4467839A (en) * 1981-04-28 1984-08-28 Scapa Inc. Papermakers fabric using differential melt yarns
US5080141A (en) * 1986-03-12 1992-01-14 Vorwerk & Co. Interholding Gmbh Multiply fabric having center portion with delicate warp threads and lateral portions with robust threads
US5558207A (en) * 1995-04-12 1996-09-24 Globe International, Inc. Belting having sealed edge and method of manufacture
US5887630A (en) * 1996-10-23 1999-03-30 Asten, Inc. Papermakers fabric with enhanced cmd support and stacking

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527488A (en) * 1950-04-10 1950-10-24 Huron Portland Cement Company Apparatus for conveying materials
US4261392A (en) * 1978-08-09 1981-04-14 Scapa Dryers, Inc. Dryer felt having soft, bulky surface
US4467839A (en) * 1981-04-28 1984-08-28 Scapa Inc. Papermakers fabric using differential melt yarns
US5080141A (en) * 1986-03-12 1992-01-14 Vorwerk & Co. Interholding Gmbh Multiply fabric having center portion with delicate warp threads and lateral portions with robust threads
US5558207A (en) * 1995-04-12 1996-09-24 Globe International, Inc. Belting having sealed edge and method of manufacture
US5887630A (en) * 1996-10-23 1999-03-30 Asten, Inc. Papermakers fabric with enhanced cmd support and stacking

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6427728B1 (en) 1998-12-14 2002-08-06 The Goodyear Tire & Rubber Company Conveyor belting with reinforcing fabric formed from three interlaced layers
WO2007093109A1 (fr) * 2006-02-15 2007-08-23 Sinoma Science & Technology Co. Ltd. Tissu à liaison de couches, creux, tridimensionnel
JP2009526920A (ja) * 2006-02-15 2009-07-23 中材科技股▲分▼有限公司 三次元織の中空層接続織物
US8114792B2 (en) 2006-02-15 2012-02-14 Sinoma Science & Technology Co. Ltd. Three-dimensional woven hollow layer-connecting fabric
WO2010046842A1 (fr) * 2008-10-21 2010-04-29 Filterteks Filtre Ve Kece Sanayi A.S. Courroie de transport pneumatique angulaire
CN102268765A (zh) * 2010-06-07 2011-12-07 罗莱家纺股份有限公司 一种全棉立体面料及其制造方法

Also Published As

Publication number Publication date
AU1075501A (en) 2001-05-10

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