US3643300A - Apparatus for producing nonwoven scrim fabrics - Google Patents

Apparatus for producing nonwoven scrim fabrics Download PDF

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Publication number
US3643300A
US3643300A US85368A US3643300DA US3643300A US 3643300 A US3643300 A US 3643300A US 85368 A US85368 A US 85368A US 3643300D A US3643300D A US 3643300DA US 3643300 A US3643300 A US 3643300A
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US
United States
Prior art keywords
thread
shaft
threads
spaced
support
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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.)
Expired - Lifetime
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US85368A
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English (en)
Inventor
Pierre Seguin
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.)
Moulinage et Retorderie de Chavanoz SA
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Moulinage et Retorderie de Chavanoz SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H81/00—Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for
    • 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

Definitions

  • the invention relates to a device for making nonwoven scrim, [52] US. Cl. ..28/1 CL, 156/181, l56/43Q, which device comprises a rotary member distributing two weft l56/441 threads drawn from two fixedly mounted bobbins. It permits [5 l Int. Cl ..D02g 3/00, D04h 3/08 th r d tion f nonwoven scrim of various constructions. [58] ..28/l,21;l56/l8l,430,44l
  • SHEET 2 [IF 3 44 22 24 g 23 i I l' i nmlllmnm.
  • the present invention relates to a device for making nonwoven scrim or net fabrics.
  • nonwoven scrim fabrics we mean fabrics composed of any network constituted on the one hand by longitudinal warp and/or selvage threads and on the other by transverse weft threads, adhered together without interlacing of the warp and weft threads.
  • a device for making textile scrim fabrics comprising a rotary member distributing two weft threads around two selvage and/or warp threads, characterized in that it has two weft thread bobbins fixedly mounted one on the inside and the other on the outside of the space or volume bound by the rotation of the thread-distributing rotary member.
  • these bobbins are combined with means for guiding the weft threads into the rotary member substantially along its axis of rotation and the bobbins are situated respectively on the inside and on the outside of said space.
  • the rotary member can be constituted in simple fashion by a disk bearing two hollow guides, or by a hollow tube or cross arm.
  • the rotary member is driven in rotation by a hollow shaft serving as a guide for one of the weft threads, the other thread being directed substantially along the axis of rotation of the rotary member by a centering and guidance element such as an eyelet or the like.
  • At least one of the bobbins bearing the weft threads may itself be disposed substantially along the axis of rotation of the rotary member.
  • the weft threads are deposited by the rotary element on conical spirals according to French Pat. No. 1,524,991 or U.S. Pat. No. 3,422,51 l, which permits a gradual expansion of the loops of the weft threads as they are formed.
  • the scrim fabrics formed can be combined continuously with sheets of other warp threads, textile fabrics, papers, metal sheets, various films, and the like.
  • the scrim fabrics according to the present invention may be made of any filament or natural, mineral, artificial or synthetic thread.
  • FIG. 1 represents a plan view of the weft sheet-forming portion of a device for producing nonwoven scrim
  • FIG. 2 is an end view of the device taken generally along the section AA of FIG. 1 which illustrates the system for feeding the selvage threads and one of the weft threads;
  • FIGS. 3, 4 and 5 show various forms of construction of a scrim produced by the device according to the invention.
  • the weft thread distribution device consists of a rotary member comprising; two bent, tubular arms 1 and 2 radially mounted on a hollow shaft 3 which is rotatably mounted in two bearings 4 and 5 and driven by a transmission belt 6 and pulley 7 connected to a power supply, not shown.
  • a main pinion 8 mounted on the shaft 3 forward of the bent arms l and 2 is a main pinion 8 driving a chain 9 which engages the teeth of two other pinions 10 and 11 which drive in rotation spaced thread support members consisting of hollow cones 12, 13 and their respective cylindrical spirals or springs 14, 15.
  • the pinions 10, 11, hollow cones 12, 13 and springs 14l,15 are supported on a cross member 40 which is attached by a sleeve bearing or the like to the rotatable shaft 3 so that the position of cross member 40 may remain fixed during rotation of shaft 3.
  • a supporting stop member 41, 42 is positioned below and engages each spring 14, 15, respectively.
  • a weft thread bobbin 23 and two selvage thread bobbins 28, 29 are suitably mounted on a support frame 44 located within the space generated by rotation of the bent arms 1 and 2 and below the main pinion and drive chain.
  • the selvage threads drawn from bobbins 28, 29 are kept at sufficient tension by tension devices 30 and 31 and pass axially through the hollow cones l2, l3 and springs 14, 15.
  • Support frame 44 is supportably freely attached by suitable means, not shown, to the support shaft 3 and fixed to the cross member 40.
  • two calender rolls 16 and 17 Positioned in nip relation between the springs 14, 15 are two calender rolls 16 and 17, and two sheets of warp threads 32, 33 are fed respectively from above and below the calender rolls by suitable means, not shown, into the nip portion of the rolls where they are combined with the weft thread sheet, as will be explained.
  • a first weft thread 18 drawn from a bobbin 19 passes into the hollow axis of shaft 3, through the bent hollow arm 1 of the rotary member and is wrapped about hollow cones 12, 13 to form a plurality of weft thread sections or reaches extending therebetween.
  • the loop ends of the weft thread reaches slide down and engage the helices of the springs 14 and 15 and the reaches are moved along the springs during their rotation so that the weft thread forms a plurality of spaced, generally parallel weft thread reaches 18a.
  • the selvage threads 20, 21 drawn from bobbins 28 and 29 are kept at sufficient tension, thanks to tension devices 30 and 31 and pass along the axis of rotation of the hollow cones 12, 13 and springs 14, 15, respectively, to be located within the looped ends of the weft thread reaches.
  • a second weft thread 22 drawn from the bobbin 23 traverses a centering guide 24 and bent conduit 25, a tension device 26 and a centering eyelet 27 situated on the axis of the shaft 3 before entering the bent arm 2 of the rotary member.
  • Weft thread 22 is then guided and deposited in reaches 220 about the selvage threads 20 and 21 in the same manner as described with respect to weft thread 18.
  • weft thread reaches 18a, 22a pass along the helices of the springs, they engage and are sandwiched between the incoming warp thread sheets 32, 33 to emerge from the calender rolls 16, 17 in a nonwoven scrim construction consisting of a weft thread layer secured between two warp thread layers and supported by selvage threads 20, 21.
  • the threads of the combined sheets or layers are thereafter bonded to each other at their crossover points by suitable means, such as the application of an adhesive, to product the composite scrim product.
  • various scrim constructions can be provided by varying the pitch and rotational speeds of the respective support springs 14 and 15.
  • the device shown in FIG. 1 is provided on one side with a thread support member comprising a simple one spiral spring 14 having a pitch, i.e., the distance between helices, of twice the distance between adjacent weft threads in the final scrim product, while the other spring 15 is provided with a double spiral having a pitch four times the distance between weft threads in the final scrim product.
  • continuous glass weft threads of 680 dtex are fed from supply packages 19 and 23 through guide arms 1 and 2 which are rotated at a speed of 500 r.p.m.
  • Two sheets of warp threads formed of 340 dtex continuous glass filaments having eight warp threads per centimeter are combined with the weft threads (which are arranged at four weft threads per centimeter) to form a scrim width of one meter at a production rate of 5 meters per minute.
  • the threads are adhered in the sheet by application of a plastisized vinyl adhesive and dried in a three meter oven having an interior temperature of 130 C.
  • the placement of the weft thread supply package support means in the manner disclosed permits continuous placement of a pair of continuous threads about the spaced thread support members of a scrim manufacturing apparatus without the necessity of rotating the thread supply package.
  • the concept of the present invention may be employed with scrim producing machines utilizing thread winding devices other than the type described.
  • stationary support members for the thread packages could be readily employed with a continuous belttype thread such as winding device disclosed in copending US. Pat. application No. 796,l 35 filed Feb. 3, 1969.
  • Apparatus for producing nonwoven scrim fabrics comprising spaced thread support members for receiving a pair of continuous threads wound thereabout to provide a plurality of thread reaches extending therebetween, stationary means for supporting first and second thread supply packages, means for guiding first and second continuous threads from the supported packages and for winding the threads continuously about said spaced thread support members, and said means for supporting the first thread package positioned within the volume generated by movement of the path of the second thread as it is guided from its supply package to said thread support members.
  • winding means includes first and second thread uide outlet means movable in a closed path about said space thread support members, said first and second thread outlet means being spaced along said closed path of movement for separately guiding the threads, and means for moving said outlet means about said spaced thread support embers to wind the first and second threads thereabout.
  • said guiding and winding means further comprises a rotatable support shaft having means for guiding the pair of threads therealong, means attached to and extending radially from said shaft for directing each of the threads outwardly of the shaft in different directions, said radially extending means including said thread guide outlet means displaced radially and along the axis of said shaft from the point of departure of the threads therefrom in the direction of said spaced thread support means, and means for rotating said support shaft to move said outlet means is a closed path about said spaced thread support members.
  • said radially extending means comprises 'a' pair of hollow guide arms extending outwardly from said shaft in opposite directions, the outer end portions of said guide arms being bent in the direction of said spaced thread support members and having said thread outlet means at the outer ends thereof.
  • Apparatus as defined in claim 4 wherein said means for guiding the weft threads along the rotatable support shaft includes means for guiding the threads for movement in opposite directions along the shaft, and wherein said means for supporting the first and second thread supply packages are located on opposite sides of the path of movement of said radially extending thread guide means.
  • Apparatus for producing nonwoven scrim "fabrics comprising spaced thread support members for receiving a pair of continuous threads wound thereabout provide a plurality of thread reaches therebetween, a rotatable drive shaft, means mounting said shaft for rotation, a pair of thread guide arms attached to and extending outwardly from said shaft for rotation therewith, outer end portions of each said guide arms containing a thread outlet positioned adjacent said spaced thread support members whereby rotation of said shaft and guide arms moves said outlets in a closed path about said spaced members, means for supporting a first thread package adjacent one end of said shaft and a second thread package adjacent the other end thereof on the opposite sides of the plane of movement of said guide arms, and means for guiding threads from packages on each of said package support means along said shaft to said guide arms.
  • one of said thread package support means is positioned within the volume generated by the rotational movement of said thread guide arms, and means attaching said one package support means to said shaft for positional support thereby.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
US85368A 1969-11-07 1970-10-30 Apparatus for producing nonwoven scrim fabrics Expired - Lifetime US3643300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6938635A FR2067607A5 (US20080094685A1-20080424-C00004.png) 1969-11-07 1969-11-07

Publications (1)

Publication Number Publication Date
US3643300A true US3643300A (en) 1972-02-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
US85368A Expired - Lifetime US3643300A (en) 1969-11-07 1970-10-30 Apparatus for producing nonwoven scrim fabrics

Country Status (14)

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US (1) US3643300A (US20080094685A1-20080424-C00004.png)
JP (1) JPS4817502B1 (US20080094685A1-20080424-C00004.png)
AU (1) AU2191470A (US20080094685A1-20080424-C00004.png)
BE (1) BE756344A (US20080094685A1-20080424-C00004.png)
CA (1) CA927729A (US20080094685A1-20080424-C00004.png)
CH (1) CH530501A (US20080094685A1-20080424-C00004.png)
DE (1) DE2054448C3 (US20080094685A1-20080424-C00004.png)
ES (1) ES192834Y (US20080094685A1-20080424-C00004.png)
FI (1) FI50546C (US20080094685A1-20080424-C00004.png)
FR (1) FR2067607A5 (US20080094685A1-20080424-C00004.png)
NL (1) NL165234C (US20080094685A1-20080424-C00004.png)
NO (1) NO125939B (US20080094685A1-20080424-C00004.png)
RO (1) RO57640A (US20080094685A1-20080424-C00004.png)
ZA (1) ZA707512B (US20080094685A1-20080424-C00004.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108708A (en) * 1975-01-09 1978-08-22 Milliken Research Corporation Scrim machine
US4242779A (en) * 1977-04-24 1981-01-06 Les Fils D'auguste Chomarat & Cie Apparatus for the manufacture of non-woven textile fabrics
US4369554A (en) * 1977-04-27 1983-01-25 Les Fils D'auguste Chomarat & Cie Method for the manufacture of non-woven textile fabrics
IT201900015180A1 (it) * 2019-08-28 2021-02-28 Lorenzo Coppini Un metodo e un sistema per la creazione di un tessuto non tessuto

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802554B1 (fr) 1999-12-17 2002-03-01 Chavanoz Ind Grille textile d'epaisseur reduite

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390439A (en) * 1965-10-21 1968-07-02 Johnson & Johnson Apparatus for cross-laying fibrous material
US3422511A (en) * 1965-10-20 1969-01-21 Chavanoz Moulinage Retorderie Method and apparatus for making a non-woven fabric
US3505712A (en) * 1964-01-28 1970-04-14 Chavanoz Moulinage Retorderie Apparatus for forming flat weft loops for a nonwoven netting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505712A (en) * 1964-01-28 1970-04-14 Chavanoz Moulinage Retorderie Apparatus for forming flat weft loops for a nonwoven netting
US3422511A (en) * 1965-10-20 1969-01-21 Chavanoz Moulinage Retorderie Method and apparatus for making a non-woven fabric
US3390439A (en) * 1965-10-21 1968-07-02 Johnson & Johnson Apparatus for cross-laying fibrous material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4108708A (en) * 1975-01-09 1978-08-22 Milliken Research Corporation Scrim machine
US4242779A (en) * 1977-04-24 1981-01-06 Les Fils D'auguste Chomarat & Cie Apparatus for the manufacture of non-woven textile fabrics
US4369554A (en) * 1977-04-27 1983-01-25 Les Fils D'auguste Chomarat & Cie Method for the manufacture of non-woven textile fabrics
IT201900015180A1 (it) * 2019-08-28 2021-02-28 Lorenzo Coppini Un metodo e un sistema per la creazione di un tessuto non tessuto

Also Published As

Publication number Publication date
NO125939B (US20080094685A1-20080424-C00004.png) 1972-11-27
DE2054448B2 (de) 1979-01-18
JPS4817502B1 (US20080094685A1-20080424-C00004.png) 1973-05-30
ZA707512B (en) 1971-08-25
NL165234B (nl) 1980-10-15
FR2067607A5 (US20080094685A1-20080424-C00004.png) 1971-08-20
AU2191470A (en) 1972-05-11
FI50546B (US20080094685A1-20080424-C00004.png) 1975-12-31
NL165234C (nl) 1981-03-16
DE2054448A1 (de) 1971-05-13
CH530501A (fr) 1972-11-15
ES192834Y (es) 1975-01-16
CA927729A (en) 1973-06-05
BE756344A (fr) 1971-03-01
ES192834U (es) 1974-09-16
NL7015946A (US20080094685A1-20080424-C00004.png) 1971-05-11
DE2054448C3 (de) 1979-09-06
FI50546C (fi) 1976-04-12
RO57640A (US20080094685A1-20080424-C00004.png) 1975-01-15

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