US3593394A - Apparatus having improved control means for producing nonwoven fabrics - Google Patents

Apparatus having improved control means for producing nonwoven fabrics Download PDF

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Publication number
US3593394A
US3593394A US874121A US3593394DA US3593394A US 3593394 A US3593394 A US 3593394A US 874121 A US874121 A US 874121A US 3593394D A US3593394D A US 3593394DA US 3593394 A US3593394 A US 3593394A
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thread
support
rotation
sections
sensing
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US874121A
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Milton M Bolles
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Deering Milliken Research Corp
Milliken Research Corp
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Milliken Research Corp
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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

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  • William Petry ABSTRACT Apparatus for producing nonwoven net fabrics composed of adhered warp and weft thread sheets, including means for winding a continuous weft thread around thread support means to form a plurality of thread sections which are 4 advanced in generally spaced parallel relation to form the weft sheet, and means operatively associated with the winding means for sensing a predetermined condition and for advancing the thread sections in response thereto to facilitate uniform positioning of the thread sections in the weft sheet.
  • Apparatus for producingnonwoven textile net fabrics are well known.
  • One type of such apparatus comprises means for continuously winding one or more.v continuous threads about a pair of spaced thread support members ina plurality of parallel loops, or thread sections, which are moved laterally along the support membersin generally parallel spaced relation'to form a weft thread sheet.
  • One or more warp thread sheets are brought by suitable guide means. into contiguous coplanar relation with the moving weft sheet and are adhesively secured thereto to-form the composite nonwoven net fabric.
  • These fabrics are widely used as reinforcement in various laminated products, such as synthetic polymeric sheets and films, paper sheets, andthe like, and as a support backing for carpets and multipart materials, such as ceramic orwooden floor tiles.
  • Such net fabrics also are used. as packing materials, screening material for windows, doors and the like.
  • the spaced yamsupport members consist of a pair of elongate helical'members, such as springs, which extend generally parallel to eachother in-side-by-side, spaced relation and are mountedfor rotation about their longitudinal axes.
  • the means for winding acontinuous thread aboutthe support members to form the weftsheet comprises a rotating tubular thread guide arm, the outer-end of' which'describes a circularpath about the supportmembers such that, as'the continuous thread is continuously wound about the supported and having a thread guide attached thereto formovement about the spaced helical threadsupport members.
  • Such'winding mechanism is especially desirable for use in apparatusfor' formingwide width'net fabricsandat high operational speeds wherein theuse of the rotating thread guide armwinding mechanism has-operational disadvantages caused by inertialand vibration-effects, thread :windage lag, and large vertical space requirements for rotation.
  • FIG. 1 is a schematic side elevation view with parts broken away'of the improved apparatus for forming nonwoven textile net fabrics incorporating features of the present invention
  • FIG. 2 is a plan view of the apparatus shown in FIG. 1;
  • FIG. 3 is an enlarged schematic perspective view of the weft sheet'forming section of the apparatus of F IGS; l and 2 and' showing in more'detail the drive and'control components for operating the winding and weft sheet forming sections of the apparatus;
  • FIG. 4 is a schematic wiring diagram of the control mechanism of the winding and weft-sheet-forming sections
  • FIG. 5 is an enlarged vertical sectional view through the stopcollar of one of the clutch-brake mechanisms of the drive means shown in FIG. 3; and- FIG.- 6 is an enlarged schematic perspective view of one thread support member of the weft-sheet-forming section of a modified form of the apparatus, and showing the location of the sensingmeans'to detect the actual presence'of the continuous thread forming the weft sheet.
  • FIGS. 1 and 2 show a schematic-side elevation and a plan view, respectively
  • apparatus for continuously forming nonwoven net fabrics
  • apparatus generally includes a thread-winding section 10, a weft-sheet-forming section 12, a warp and'weftsheet-combining section 14, and a takeup roll 16 for collecting the composite nonwoven net fabric.
  • thread-winding section includes thread-winding means comprising an endless flexible member or belt which is mounted on a pair of spaced apart pulleys 22, 24 for movement in a generally racetrack-shaped path.
  • Thread-winding means comprising an endless flexible member or belt which is mounted on a pair of spaced apart pulleys 22, 24 for movement in a generally racetrack-shaped path.
  • Support shafts 25, 26 of pulleys 22, 24 are suitably mounted for rotation in bearings 27, 28 on a support frame 29 and shaft 26 is drivingly connected by suitable sprocket and chain drive arrangement 30 to the drive shaft 31 ofa motor 32.
  • the weft-sheet-forming section 12 includes thread support means comprising a pair of elongate spaced thread support members or hollow cylinders 40, 41 which extend in generally parallel side-by-side relation, are of substantially identical construction, and are rotatably supported adjacent their ends in split bearings 42-45 mounted on a support frame 46.
  • each of the cylinders has been helically cut or slotted, and surrounding the cylinders 40, 41 intermediate their length and in fixed relation thereon are split gears 50, 52 which are rotatably driven by intermeshing gears 54, 56, respectively.
  • Support shafts 58, S9 of the respective gears 54, 56 are drivingly connected by a sprocket and chain arrangement 60 and shaft 31, respectively, to the drive motor 32.
  • the warp and weft-sheet-combining section 14 includes a pair of nip rolls 60, 62 which are rotatably supported by suitable means, not shown, between the outer end portions of the helical cylinders.
  • the thread sections R being advanced along cylinders 40, 41 approach the outer ends of the cylinders, they pass between and are engaged by the nip rolls 60, 62 where one or more sheets 64, 66 of warp threads supplied from a suitable source, not shown, are combined therewith and pass between the rolls.
  • the combined sheets pass in contiguous coplanar relation by guide rollers through an adhesive bath 68 where a suitable adhesive is applied thereto.
  • the composite sheet thereafter passes over the surface of heated drying rolls 70, 72 where the adhesive is dried and cured to secure the warp and weft sheets together, and the thus formed nonwoven net fabric is accumulated on the collection roll 16.
  • heated drying rolls 70, 72 where the adhesive is dried and cured to secure the warp and weft sheets together, and the thus formed nonwoven net fabric is accumulated on the collection roll 16.
  • one or more of the rolls in the warp and weft-sheet-combining section, as well as the collection roll 16 may be suitably driven to move the composite sheet through the latter part of the apparatus.
  • selvage threads 74, 76 are supplied from packages mounted on a cross arm 77 and pass through the centers of the support cylinders 40, 41 to be positioned within the loop ends of the weft thread sections.
  • the selvage threads strengthen the composite nonwoven net product to provide additional support to the weft sheet during its passage through the final sections of the apparatus.
  • this sensing means includes a pair of sensor elements or photoelectric cells 80, 82 respectively positioned at each end of the flexible belt 20 adjacent the pulleys 22, 24. Photoelectric cells 80, 82 are disposed in inwardly facing relation so that the light sources thereof are directed against the outer surface of the belt 20 as it passes around the adjacent support pulleys.
  • a portion of the outer surface of the belt 20 immediately behind the thread guide rod 34 in the direction of movement of the belt are light-reflective means, such as a white-painted transverse stripe 20a across the belt.
  • the light-reflective characteristics of the stripe 200 are such that as the stripe passes the light beam of each of the photoelectric cells 80, 82, it reflects back to the photoelectric cells an increased intensity of the light.
  • the selvage thread packages and their supporting cross arm have been omitted from HO. 3 for convenience to better show the operation of the winding and weft-sheet-forming sections of the apparatus.
  • Each of the photoelectric cells 80, 82 are electrically connected to incremental rotation clutch-brake mechanisms 84, 86, respectively, which control the advancement of the weft thread sections along cylinders 40,41 in response to actuation by the photoelectric cells.
  • Clutch-brake mechanisms 84, 86 may be of identical construction and of the type No. 500339 Model S Clutch-Brake made by Precision Specialties, Inc, of Pitman, New Jersey.
  • Each of the clutch-brake mechanisms operate independently of each other and in response to its respective photoelectric cell to accurately start and stop the rotation of the adjacent thread support cylinder while itself being driven by a continuously rotating source of power from the motor 32.
  • Clutch-brake member 84 operatively connects the continuously driven drive shaft section 58a to shaft section 58b
  • clutch-brake member 86 operatively connects the continuously driven shaft 31 to shaft 59.
  • each mechanism includes an input hub 87 and an output shaft 88.
  • the input hubs of the mechanisms 84, 86 are free to turn at all times and are connected to the continuously rotating input drive shafts 31, 58a, respectively, while the output shafts of the mechanisms are suitably connected to the output shafts 58b and 59, respectively.
  • the continuous thread can be positively placed within the helix of each of the support cylinders during passage of the thread guide rod thereabout while the cylinder is stopped, and the cylinder then independently rotated one revolution to advance the thread section and locate the empty helix of the cylinder in proper position for reception of the next thread section.
  • rotation of the thread support cylinders is initiated only as the thread guide rod passes the cylinder, thereby compensating for possible advancement or retardation of the thread guide rod due to slippage or inadvertent stretching of the belt during its movement about the pulleys.
  • FIG. 4 shows the photoelectric cell 80 connected by way of an amplifier 101 to a relay switch 102 which controls the power supply to the solenoid 94 of clutch-brake mechanism 84.
  • sensing means other than the photoelectric type may be employed, e.g., mechanical, electrical, etc., and in lieu of sensing the presence of a portion of the belt or rotating tubular guide arm, the sensing means might detect the actual presence of the thread passing onto the support members.
  • Apparatus for producing nonwoven net fabrics comprising thread support means, thread-winding means rnovable about said support means for winding a continuous thread thereabout to form a plurality of thread sections, said thread support means including means for advancing the thread sections in generally parallel spaced relation to form a weft sheet of threads, and means operatively associated with said winding means for sensing a predetermined condition and for advancing the thread sections in response thereto to facilitate uniform positioning of the thread sections in the weft sheet.
  • sensing means comprises means for sensing the position of the movable thread-winding means to advance the thread sections in response thereto.
  • said thread support means includes at least one elongate helical support member and said advancing means includes means for rotating the member about its longitudinal axis to move the thread sections in spaced relation along the helices of the member to form the weft sheet; and said means for advancing the sections in response to said sensing means comprises means for controlling the rotation of the support member.
  • said rotation controlling means includes means for initiating rotation of said support member in response to said sensing means.
  • controlling means further includes means for rotating said support member a single revolution in response to said sensing means.
  • said thread support means includes a pair of elongate helical thread support members, means mounting said members in generally parallel, side-by-side spaced relation for rotation about their respective longitudinal axes and for receiving the continuous thread from the thread winding means in a plurality of thread sections therebetween; and said advancement means comprises means for controlling the rotation of said support members in response to said sensing means to facilitate uniform placement of the thread sections between the helices of the members.
  • said rotationcontrolling means includes means for initiating rotation of said support members in response to said sensing means for a predetermined amount of revolution thereof.
  • said threadwinding means includes an endless flexible member, a thread guide mounted on said flexible member, means mounting said member for movement of said thread guide in a path around said thread support members to wind a continuous thread thereon to form the sections therebetween; and wherein said sensing means includes indicator means on said endless flexible member, and sensor means adjacent the path of movement of said thread guide and flexible member for detecting the passage of said indicator means thereby.
  • said indicator means includes light-reflective means on said flexible member and said sensor means includes light-responsive means positioned adjacent the path of travel of said flexible member for actuation by said light-reflective means to initiate rotation of said support member.
  • rotationcontrolling means includes clutch-brake means operatively connecting said means for rotating the support members to said support members.
  • clutchbrake means includes means for initiating rotation of the support members and for stopping rotation of the support members after a predetermined amount of revolution thereof.
  • said sensor means includes a sensor element located at each end of said path and adjacent each thread support member to detect the passage of said indicator means thereby; and said rotationcontrolling means includes means operatively connected to each of said sensor elements for independently controlling the rotation of the thread support member adjacent said sensor element.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Woven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
US874121A 1969-11-05 1969-11-05 Apparatus having improved control means for producing nonwoven fabrics Expired - Lifetime US3593394A (en)

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US87412169A 1969-11-05 1969-11-05

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US3593394A true US3593394A (en) 1971-07-20

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US (1) US3593394A (enrdf_load_stackoverflow)
BE (1) BE758534A (enrdf_load_stackoverflow)
CA (1) CA934649A (enrdf_load_stackoverflow)
DE (1) DE7041068U (enrdf_load_stackoverflow)
ES (1) ES385215A1 (enrdf_load_stackoverflow)
FI (1) FI50545C (enrdf_load_stackoverflow)
FR (1) FR2067004B1 (enrdf_load_stackoverflow)
GB (1) GB1296582A (enrdf_load_stackoverflow)
NL (1) NL7015874A (enrdf_load_stackoverflow)
SE (1) SE373890B (enrdf_load_stackoverflow)
ZA (1) ZA707497B (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793816A (en) * 1972-02-29 1974-02-26 Fuji Spinning Co Ltd Continuous yarn treating method
US3921265A (en) * 1974-09-30 1975-11-25 Deering Milliken Res Corp Method and apparatus to produce non-woven fabric
US4045847A (en) * 1970-10-02 1977-09-06 Walford Richard L Apparatus for the manufacture of weft inserted non-woven fabrics
US4173874A (en) * 1977-01-17 1979-11-13 Sulzer Morat Gmbh Apparatus on a textile machine for the feeding of yarns, slivers or other fibrillar materials
US4173873A (en) * 1977-01-17 1979-11-13 Sulzer Morat Gmbh Apparatus on a textile machine for feeding yarn, sliver or fibrous materials
US4189811A (en) * 1978-03-29 1980-02-26 E. I. Du Pont De Nemours And Company Method for producing non-woven webs of cross-laid strands
US4602973A (en) * 1984-05-22 1986-07-29 Apsley Metals Limited Manufacture of non-woven fabric
US5039372A (en) * 1988-08-05 1991-08-13 Compagnie Generale Des Etablissements Michelin - Michelin Et Cie Component elements of an apparatus for the manufacture of a tire reinforcement
US5111672A (en) * 1989-09-27 1992-05-12 Karl Mayer Textilmaschinenfabrik Gmbh Weft thread insertion arrangement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2521180A1 (fr) * 1982-02-08 1983-08-12 Vandermarliere Charles Perfectionnements aux appareils fabriquant des grilles textiles et grilles textiles obtenues avec lesdits appareils

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1358094A (en) * 1916-11-18 1920-11-09 Savage Tire Company Loom element
US2962080A (en) * 1956-12-12 1960-11-29 Gen Gummed Products Inc Apparatus for producing reinforced composite layer material
US3340584A (en) * 1965-06-17 1967-09-12 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
US3430312A (en) * 1967-01-31 1969-03-04 Warren Wendell Drummond Fiber winding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1358094A (en) * 1916-11-18 1920-11-09 Savage Tire Company Loom element
US2962080A (en) * 1956-12-12 1960-11-29 Gen Gummed Products Inc Apparatus for producing reinforced composite layer material
US3340584A (en) * 1965-06-17 1967-09-12 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
US3430312A (en) * 1967-01-31 1969-03-04 Warren Wendell Drummond Fiber winding machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045847A (en) * 1970-10-02 1977-09-06 Walford Richard L Apparatus for the manufacture of weft inserted non-woven fabrics
US3793816A (en) * 1972-02-29 1974-02-26 Fuji Spinning Co Ltd Continuous yarn treating method
US3921265A (en) * 1974-09-30 1975-11-25 Deering Milliken Res Corp Method and apparatus to produce non-woven fabric
US4173874A (en) * 1977-01-17 1979-11-13 Sulzer Morat Gmbh Apparatus on a textile machine for the feeding of yarns, slivers or other fibrillar materials
US4173873A (en) * 1977-01-17 1979-11-13 Sulzer Morat Gmbh Apparatus on a textile machine for feeding yarn, sliver or fibrous materials
US4189811A (en) * 1978-03-29 1980-02-26 E. I. Du Pont De Nemours And Company Method for producing non-woven webs of cross-laid strands
US4602973A (en) * 1984-05-22 1986-07-29 Apsley Metals Limited Manufacture of non-woven fabric
US5039372A (en) * 1988-08-05 1991-08-13 Compagnie Generale Des Etablissements Michelin - Michelin Et Cie Component elements of an apparatus for the manufacture of a tire reinforcement
US5111672A (en) * 1989-09-27 1992-05-12 Karl Mayer Textilmaschinenfabrik Gmbh Weft thread insertion arrangement

Also Published As

Publication number Publication date
NL7015874A (enrdf_load_stackoverflow) 1971-05-07
FI50545B (enrdf_load_stackoverflow) 1975-12-31
SE373890B (enrdf_load_stackoverflow) 1975-02-17
FR2067004B1 (enrdf_load_stackoverflow) 1974-09-20
FI50545C (fi) 1976-04-12
GB1296582A (enrdf_load_stackoverflow) 1972-11-15
ZA707497B (en) 1971-07-28
ES385215A1 (es) 1973-04-01
CA934649A (en) 1973-10-02
DE7041068U (de) 1971-08-12
FR2067004A1 (enrdf_load_stackoverflow) 1971-08-13
BE758534A (fr) 1971-04-16

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