US3505712A - Apparatus for forming flat weft loops for a nonwoven netting - Google Patents

Apparatus for forming flat weft loops for a nonwoven netting Download PDF

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Publication number
US3505712A
US3505712A US770885*A US3505712DA US3505712A US 3505712 A US3505712 A US 3505712A US 3505712D A US3505712D A US 3505712DA US 3505712 A US3505712 A US 3505712A
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United States
Prior art keywords
shaft
loops
weft loops
flat weft
guide
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Expired - Lifetime
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US770885*A
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Henri Servage
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Moulinage et Retorderie de Chavanoz SA
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Moulinage et Retorderie de Chavanoz SA
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    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
    • D04H3/045—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles for net manufacturing
    • 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/12—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with filaments or yarns secured together by chemical or thermo-activatable bonding agents, e.g. adhesives, applied or incorporated in liquid or solid form

Definitions

  • the invention relates to an apparatus for forming flat weft loops in the manufacture of nonwoven netting.
  • a shaft carries on its axis at least two tubular members which extend radially outwardly from the shaft for rotation therewith.
  • the yarn from each bobbin is guided through a separate one of said tubular members and, as the latter rotate, at least two flat weft loops are formed on guide bars which are spaced apart but located radially inwardly of the open ends of the tubular members.
  • the present invention relates to a method and apparatus for the manufacture of nonwoven netting.
  • nonwoven nettings In a known method and apparatus for the manufacture of nonwoven nettings as described in French Patent No. 1,208,968 and addition No. 79,765 thereto, a web of flattened loops parallel to the weft thread is produced by a rotating element, these loops being immediately after their formation enclosed between two webs of warp threads and attached to them. These nonwoven nettings may be used as reinforcements in stratified materials.
  • the rotary element may be a tubular member, rotating on a hollow support shaft which serves as a feeder for the weft thread, and winds the latter into loops about a pair of spaced apart support arms.
  • an apparatus for forming the flat weft loops for .a non woven netting such apparatus comprising a rotatable shaft with at least two bobbins mounted coaxially on the shaft, the shaft carrying at least two tubular bent members through each of which a thread may be passed, a pair of spaced apart stationary guide bars being positioned nearer to the axis of the shaft than the tubular bent members so that on rotation of the shaft and the members at least two series of flat weft loops are formed on the guide bars.
  • the apparatus of the invention is much superior to the known apparatus having a heavy rotating circular rim carrying two or more bobbins, because of the moving masses, rotating with considerable inertia and at considerable distance from the axis.
  • the rotating masses are positioned in the axis itself and the inertia of the rotating members may be kept low.
  • two bobbins 18 are positioned co-axially in two supports 19 mounted on cages 16.
  • the two cages 16 form an axial frame attached to a rotating shaft 21, mounted, in a bearing 20, and in two bearings 4.
  • the cages 16 are each traversed by a bar 17 with a hole 17' in the centre.
  • a thread 2 or 1 unwinds from each bobbin 18 and passes through the holes 17 of the two bars.
  • the thread 2 passes through an orifice 24 in the lateral bar, follows this bar to the right hand cage, passes back through the bar at 25 and passes through an orifice 23 in the end bar at the front of the right hand cage.
  • the thread 1, unwinding from a bobbin in the right hand cage passes through the hole 17' in the bar 17, and then directly through an orifice 22 in the end bar of the right hand cage.
  • the shaft 21 is pierced by two longitudinal, symmetrical passages 26" and 27" with lateral openings 26 and 27 upstream and 26' and 27' downstream.
  • the thread 1 passes through the passage 26" between the openings 26 and 26', and the thread 2 passes through the passage 27" between the openings 27 and 27.
  • the shaft 21, which is driven by means of a transmission pulley 3, carries two opposite arms 5 and 6 which carry tubular bent member 7 and 7' which guide the threads 1 and 2.
  • the shaft also carries, beyond the arms 5 and 6, a beam 8, 8' which is held in the horizontal position by suitable means.
  • the shaft 21 can rotate for this purpose in the hub 9 of the beam.
  • the beam 8, 8 is provided with two bent guide bars 11 and 11', the end portions of which converge.
  • the beam also carries two symmetrical bobbins 13, 13 from which two edge threads 28 and 28 unwind and pass through the two guides 12, 12', symmetrically arranged on the beam 8, 8'.
  • the two bent bars guide the edge threads 28 and 28 towards a device consisting of a pair of rollers 14.
  • the lower roller is directly underneath the upper roller and thus cannot be seen in the drawing.
  • a web of warp threads, not illustrated, is fed from above to the nip of the rollers 14, another web of warp threads, not illustrated, is fed from below to the nip of the rollers 14.
  • Apparatus for forming flat weft loops, for a nonwoven netting comprising, in combination:
  • each said crossbar including means defining an aperture for the passage of a thread from a bobbin.
  • said shaft including means defining a plurality of longitudinal bores therethrough, each bore being effective to lead a thread from a bobbin to the associated tubular member.
  • Apparatus for forming flat weft loops, for a nonwoven netting comprising, in combination:

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)

Description

2 April 14, 1970 H. SERVAGE 3,505,712
APPARATUS FOR FORMING FLAT WEFT LOOPS FOR A NONWOVEN NETTING Original Filed Jan. 27, 1965 lnuen/or Hen 0-; Se!" z aga p By Attorneys United States Patent 0 rm. (:1. D02g 3/00,- D0411 3/08 US. Cl. 281 6 Claims ABSTRACT OF THE DISCLOSURE The invention relates to an apparatus for forming flat weft loops in the manufacture of nonwoven netting. A shaft carries on its axis at least two tubular members which extend radially outwardly from the shaft for rotation therewith. The yarn from each bobbin is guided through a separate one of said tubular members and, as the latter rotate, at least two flat weft loops are formed on guide bars which are spaced apart but located radially inwardly of the open ends of the tubular members.
The present invention relates to a method and apparatus for the manufacture of nonwoven netting.
Application Ser. No. 770,885 is a continuation of application Ser. No. 428,359, filed J an. 27, 1965, now abancloned.
In a known method and apparatus for the manufacture of nonwoven nettings as described in French Patent No. 1,208,968 and addition No. 79,765 thereto, a web of flattened loops parallel to the weft thread is produced by a rotating element, these loops being immediately after their formation enclosed between two webs of warp threads and attached to them. These nonwoven nettings may be used as reinforcements in stratified materials. The rotary element may be a tubular member, rotating on a hollow support shaft which serves as a feeder for the weft thread, and winds the latter into loops about a pair of spaced apart support arms.
According to the present invention, there is provided an apparatus for forming the flat weft loops for .a non woven netting such apparatus comprising a rotatable shaft with at least two bobbins mounted coaxially on the shaft, the shaft carrying at least two tubular bent members through each of which a thread may be passed, a pair of spaced apart stationary guide bars being positioned nearer to the axis of the shaft than the tubular bent members so that on rotation of the shaft and the members at least two series of flat weft loops are formed on the guide bars.
The apparatus of the invention is much superior to the known apparatus having a heavy rotating circular rim carrying two or more bobbins, because of the moving masses, rotating with considerable inertia and at considerable distance from the axis. In the present apparatus, the rotating masses are positioned in the axis itself and the inertia of the rotating members may be kept low.
In order that the invention may more readily be understood the following description is given of one example of apparatus according to the invention. Reference is made to the accompanying drawing in which the sole figure is a plan view of the apparatus.
Referring to the drawing, two bobbins 18 are positioned co-axially in two supports 19 mounted on cages 16. The two cages 16 form an axial frame attached to a rotating shaft 21, mounted, in a bearing 20, and in two bearings 4.
The cages 16 are each traversed by a bar 17 with a hole 17' in the centre. A thread 2 or 1 unwinds from each bobbin 18 and passes through the holes 17 of the two bars. Beyond the hole 17' in the bar 17 of the left hand cage the thread 2 passes through an orifice 24 in the lateral bar, follows this bar to the right hand cage, passes back through the bar at 25 and passes through an orifice 23 in the end bar at the front of the right hand cage.
On the other hand, the thread 1, unwinding from a bobbin in the right hand cage passes through the hole 17' in the bar 17, and then directly through an orifice 22 in the end bar of the right hand cage.
The shaft 21 is pierced by two longitudinal, symmetrical passages 26" and 27" with lateral openings 26 and 27 upstream and 26' and 27' downstream. The thread 1 passes through the passage 26" between the openings 26 and 26', and the thread 2 passes through the passage 27" between the openings 27 and 27.
The shaft 21, which is driven by means of a transmission pulley 3, carries two opposite arms 5 and 6 which carry tubular bent member 7 and 7' which guide the threads 1 and 2. The shaft also carries, beyond the arms 5 and 6, a beam 8, 8' which is held in the horizontal position by suitable means. The shaft 21 can rotate for this purpose in the hub 9 of the beam.
The beam 8, 8 is provided with two bent guide bars 11 and 11', the end portions of which converge. The beam also carries two symmetrical bobbins 13, 13 from which two edge threads 28 and 28 unwind and pass through the two guides 12, 12', symmetrically arranged on the beam 8, 8'.
The two bent bars guide the edge threads 28 and 28 towards a device consisting of a pair of rollers 14. The lower roller is directly underneath the upper roller and thus cannot be seen in the drawing.
A web of warp threads, not illustrated, is fed from above to the nip of the rollers 14, another web of warp threads, not illustrated, is fed from below to the nip of the rollers 14.
During rotation of the shaft 21 and of the members 7, 7 the threads 1 and 2 form fiat successive loops on the bars 11 and 11' and sliding over the converging end portions these loops fall onto the edge threads 28, 28' which carry them away between the two webs of warp threads and into the rollers where the two webs of warp threads are attached to the loops of the weft, so that when the assembly is dried a nonwoven, glue netting for reinforcing stratified articles is formed.
That which is claimed is:
1. Apparatus for forming flat weft loops, for a nonwoven netting, said apparatus comprising, in combination:
(a) a shaft mounted for rotation about its axis;
(b) means on said shaft for mounting at least two bobbins on said shaft axis;
(c) at least two tubular members, each extending radially outwardly from said shaft, for rotation therewith;
(d) an open end to each of said tubular members spaced radially outwardly from said shaft axis;
(e) guide means for guiding a thread from each of said bobbins to said tubular members; and
(f) spaced apart guide bar means located radially inwardly of said open ends of said tubular member, whereby, upon rotation of said shaft and tubular members, at least two fiat weft loops are formed on said guide bar means.
2. Apparatus as specified in claim 1 and including a multiple frame secured to said shaft effective to form at least two cages each constituting said bobbin mounting means.
3. Apparatus as specified in claim 2 in which said multiple frame comprises:
(a) a pair of longitudinal bars substantially parallel to said shaft;
(b) a transverse crossbar extending between said longitudinal bars for each said bobbin; and
(0) each said crossbar including means defining an aperture for the passage of a thread from a bobbin.
4. Apparatus as specified in claim 1, said shaft including means defining a plurality of longitudinal bores therethrough, each bore being effective to lead a thread from a bobbin to the associated tubular member.
5. Apparatus for forming flat weft loops, for a nonwoven netting, said apparatus comprising, in combination:
(a) a shaft mounted for rotation about its axis;
(b) means on said shaft for mounting at least two bobbins on said shaft axis;
(c) at least two guide members, each extending radially outwardly from said shaft, for rotation therewith;
(d) guide means for guiding a thread from each of said bobbins to said guide members; and
(e) spaced apart guide bar means located radially inwardly of the ends of said guide member, whereby, upon rotation of said shaft and guide members, at least two flat weft loops are formed on said guide bar means.
6. Apparatus as specified in claim 5 and including a multiple frame secured to said shaft effective to form at least two cages each constituting said bobbin mounting means.
References Cited UNITED STATES PATENTS 3,154,452 10/1964 Hartbauer 156-178 2,847,056 8/1958 Vanlaer 156-4'33 XR PHILIP DIER, Primary Examiner US. Cl. X.R. 156-181, 430, 441
US770885*A 1964-01-28 1968-09-23 Apparatus for forming flat weft loops for a nonwoven netting Expired - Lifetime US3505712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR961770A FR1391900A (en) 1964-01-28 1964-01-28 Improvement in the manufacture of non-woven screens

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US3505712A true US3505712A (en) 1970-04-14

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US (1) US3505712A (en)
AT (1) AT252164B (en)
BE (1) BE658937A (en)
CH (1) CH434183A (en)
DE (1) DE1635539A1 (en)
ES (1) ES308642A1 (en)
FR (1) FR1391900A (en)
GB (1) GB1011218A (en)
NL (1) NL6501010A (en)
SE (1) SE315263B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638290A (en) * 1970-09-04 1972-02-01 Deering Milliken Res Corp Apparatus for producing nonwoven fabrics
US3643300A (en) * 1969-11-07 1972-02-22 Chavanoz Moulinage Retorderie Apparatus for producing nonwoven scrim fabrics
US3646647A (en) * 1970-03-19 1972-03-07 Deering Milliken Res Corp Apparatus for the production of nonwoven materials
US3885279A (en) * 1973-06-18 1975-05-27 Deering Milliken Res Corp Yarn feed guide arms
US4045847A (en) * 1970-10-02 1977-09-06 Walford Richard L Apparatus for the manufacture of weft inserted non-woven fabrics
CN104674460A (en) * 2015-03-09 2015-06-03 常州纽兰德复合材料有限公司 Method for making non-woven mesh composite non-woven fabric with rotary weft laying method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2518594A1 (en) * 1981-12-23 1983-06-24 Chomarat & Cie DEVICE FOR THE PRODUCTION OF A TEXTILE TABLE OF SONS EXTENDING TRANSVERSE IN RELATION TO THE LENGTH OF THE SAME
FR2802554B1 (en) 1999-12-17 2002-03-01 Chavanoz Ind REDUCED THICKNESS TEXTILE GRID

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847056A (en) * 1955-02-25 1958-08-12 Vanlaer Pierre Georges Auguste Method and apparatus for producing reinforced sheet material
US3154452A (en) * 1959-02-13 1964-10-27 Crown Zellerbach Corp Method and apparatus for making reinforced web

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847056A (en) * 1955-02-25 1958-08-12 Vanlaer Pierre Georges Auguste Method and apparatus for producing reinforced sheet material
US3154452A (en) * 1959-02-13 1964-10-27 Crown Zellerbach Corp Method and apparatus for making reinforced web

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3643300A (en) * 1969-11-07 1972-02-22 Chavanoz Moulinage Retorderie Apparatus for producing nonwoven scrim fabrics
US3646647A (en) * 1970-03-19 1972-03-07 Deering Milliken Res Corp Apparatus for the production of nonwoven materials
US3638290A (en) * 1970-09-04 1972-02-01 Deering Milliken Res Corp Apparatus for producing nonwoven fabrics
US4045847A (en) * 1970-10-02 1977-09-06 Walford Richard L Apparatus for the manufacture of weft inserted non-woven fabrics
US3885279A (en) * 1973-06-18 1975-05-27 Deering Milliken Res Corp Yarn feed guide arms
CN104674460A (en) * 2015-03-09 2015-06-03 常州纽兰德复合材料有限公司 Method for making non-woven mesh composite non-woven fabric with rotary weft laying method
CN104674460B (en) * 2015-03-09 2016-09-28 常州纽兰德复合材料有限公司 The method that rotary paving latitude legal system makes non-woven mesh compound nonwoven cloth

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ES308642A1 (en) 1965-12-16
CH434183A (en) 1967-04-30
BE658937A (en) 1965-05-17
DE1635539A1 (en) 1970-11-19
FR1391900A (en) 1965-03-12
AT252164B (en) 1967-02-10
SE315263B (en) 1969-09-29
GB1011218A (en) 1965-11-24
NL6501010A (en) 1965-07-29

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