US3651543A - Apparatus for treating carded fibrous material for forming a web of said material - Google Patents

Apparatus for treating carded fibrous material for forming a web of said material Download PDF

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Publication number
US3651543A
US3651543A US823015A US3651543DA US3651543A US 3651543 A US3651543 A US 3651543A US 823015 A US823015 A US 823015A US 3651543D A US3651543D A US 3651543DA US 3651543 A US3651543 A US 3651543A
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conveyors
conveyor
fibrous material
longitudinal conveyors
longitudinal
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US823015A
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English (en)
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Madis Valdurovich Loo
Argo Alexandrovich Sillaots
Jury-Eduard Khansovich Kekhler
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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
    • 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
    • D04H1/74—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 orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above

Definitions

  • ABSTRACT An apparatus for treating carded fibrous material for fonning a web of such material, to be used in the production of nonwoven textile materials, wherein, in addition to two systems'of longitudinal'conveyors and a pair of aligned transverse conveyors disposed under these two systems of longitudinal conveyors, there are provided a device for turning a lap of fibrous material by 90", disposed above the second one of the two systems of longitudinal conveyors, and a pair of additional conveyors.
  • One of these two additional conveyors is inclined toward the transverse conveyor which is disposed under the first system of longitudinal conveyors and is itself disposed intermediate the two systems of longitudinal conveyors, the other of these two additional conveyors being disposed between the device for turning the lap of fibrous material by 90 and the second one of the two systems of longitudinal conveyors, the direction of travel of this last-mentioned one of the I two additional conveyors being opposite to that of the topmost one of the conveyors of the second system.
  • the present invention relates to machinery and apparatus, used in the textile industry, and, more particularly, it relates to apparatus for treating carded fibrous materials for forming a web, or lap of such material, to be used in the production of nonwoven textile materials.
  • One known kind of apparatus for treating carded fibrous materials for forming a web, or lap to be used in the production of nonwoven textile materials comprises two systems of longitudinal conveyors and a pair of axially aligned transverse conveyors, disposed, respectively, under the first and the second system of longitudinal conveyors.
  • Such fiber-treating apparatus is adapted to be installed immediately following a pair of carding engines and uses the fibers supplied by these engines for forming a lap in which the fibers extend laterally of this lap.
  • a lap of this kind is most suitable for the production of nonwoven materials with an internal layer of reinforcing fabric, or else for the production of nonwoven textile materials by a stitching-and-knitting method, where the tensile strength of such material in the Iongitudinal direction is due to the presence of the stitching threads.
  • the prior art has not yet known any apparatus for treating carded fibrous materials, which would be capable of forming selectively both laps with fibers extending exclusively in a lateral direction and also multi-ply laps in which fibers extend in perpendicular directions.
  • the present invention resides in an apparatus for treating carded fibrous material for forming a web of such material, to be used in the production of nonwoven textile materials, comprising two systems of Iongitudinal conveyors and two transverse conveyors, axially aligned with each other, each one of said two axially aligned transverse conveyors being disposed under the respective one of said two systems of longitudinal conveyors, in which apparatus, according to the present invention, there is provided a device for turning the direction of the feed of a lap of fibrous material by 90, said device being disposed above the second one of said two systems of longitudinal conveyors; and two additional conveyors; one of said two additional conveyors being inclined toward that one of said two transverse conveyors which is disposed under the first one of said two systems of longitudinal conveyors, said one additional conveyor being disposed intennediate said two systems of longitudinal conveyors, above said two transverse conveyors; the other one of said two additional conveyors being disposed intermediate said lap-turning device and said second one of said
  • the provision of the known fiber-treating and lap-forming apparatus with the two additional conveyors and the device for turning the direction of the feed of a lap of fibrous material by enables such improved apparatus to produce not only webs, or laps with fibers extending laterally of the laps, but also muIti-ply webs, or laps with fibers extending in perpendicular directions.
  • the upper end portion of said inclined additional conveyor is pivotally connected to the supporting structure of said device for changing the direction of the feed of a lap of fibrous material by 90
  • the bottom end portion of said inclined additional conveyor is carried by the supporting structure of that one of said two transverse conveyors which is disposed under the first one of said two systems of longitudinal conveyors, by means of a mechanism providing for adjusting the position of said bottom end portion in a vertical plane.
  • This adjustment makes it possible to raise the bottom portion of the inclined additional conveyor, whereby the apparatus can be used for producing a web, or lap with laterally extending fibers.
  • the apparatus when the bottom end portion of said inclined additional conveyor is lowered into its operating position, the apparatus produces multi-ply webs, or laps withfibers in the successive layers extending in perpendicular directions.
  • the dimensions of a fiber-treating lap-forming apparatus, embodying the present invention are practically not greater than those of the existing apparatus which is able to produce merely laps with fibers extending laterally thereof.
  • the apparatus, embodying the present invention features sharply increased versatility thanks to its being able to produce both webs, or laps with laterally extending fibers and webs, or laps wherein fibers extend in perpendicular directions.
  • FIG. 1 is a side elevation of an apparatus for treating carded fibrous material, embodying the invention
  • FIG. 2 is a plan view of the apparatus shown in FIG. 1;
  • FIG. 3 shows schematically the respective directions of the travel of the second system of longitudinal conveyors and of the additional conveyor in the apparatus for treating carded fibrous materials, embodying the invention.
  • the apparatus for treating carded fibrous materials for the production of nonwoven textile materials comprises two systems, 1 and 2 (FIG. 1), of longitudinal conveyors, arranged parallel to each other and disposed immediately following the respective carding engines (not shown in FIGS. 1, 2 and 3).
  • the apparatus also comprises two transverse conveyors, 3 and 4, aligned with one another.
  • the conveyor 3 underlies the first system I of longitudinal conveyors, whereas the conveyor 4 underlies the second system 2 of longitudinal conveyors.
  • the apparatus for treating fibrous materials also includes a device 5 for changing the direction of the feed of the web of carded fibrous material by 90, disposed above the system 2 of longitudinal conveyors, and a pair ofadditional conveyors 6 and 7, of which the conveyor 6 is inclined toward the transverse conveyor 3 and disposed intermediate the systems 1 and 2 of longitudinal conveyors, while the other additional conveyor 7 is disposed intermediate the system 2 of longitudinal conveyors and the device 5 for turning the carded web by 90.
  • the raised end portion of the inclined additional conveyor 6 is pivotally attached to the supporting structure of the device 5 for turning the carded web by 90, whereas the bottom end portion of the conveyor 6 is supported by the supporting structure of the transverse conveyor 3 and can be adjusted in a vertical plane by means of an adjusting mechanism including an externally threaded member, or screw 8, threadedly engaged with a nut 9, and a hollow sleeve received around the upper portion of the screw 8.
  • the bottom portion of the screw 8 is pivotally connected with the supporting frame of the transverse conveyor 3
  • the upper end portion of the hollow sleeve 10 is pivotally connected with the supporting frame of the inclined additional conveyor 6, and the bottom end portion of the hollow sleeve 10 bears against the nut 9.
  • the first system 1 of longitudinal conveyors incorporates a topmost conveyor-11, a compensating conveyor 12 and a laplaying conveyor 13, the topmost conveyor 11 being associated with a driving chain (not shown in FIGS. 1, 2 and 3) which transmits motion to the compensating conveyor 12 and laplaying conveyor 13.
  • the system 2 of longitudinal conveyors likewise incorporates a topmost conveyor 14, a compensating conveyor and a lap-laying conveyor 16, the topmost conveyor 14 being associated with a driving chain 17 (FIG. 3) which transmits motion to the compensating conveyor 15 and the lap-lying conveyor 16, the same driving chain 17 transmitting motion through a clutch 18 to the additional conveyor 7, so that the direction of travel of the latter is opposite to that of the topmost conveyor 14.
  • a driving chain 17 FIG. 3
  • the respective driving shafts of the topmost conveyors l1 and 14 of the systems 1 and 2 receive driving torque from the respective carding engines (not shown in the drawings) through the chain transmissions 20 and 21 (FIG. 2). Rotation is transmitted from these driving shafts, e.g., in the system 2 from the shaft of the conveyor 14, through a chain transmission 22 (FIG. 3) to the driving chain 23 of the bottommost conveyor, to Motion is transmitted in the system 1 of the longitudinal conveyors in a similar manner (not illustrated in the FIGS. 1, 2 and 3).
  • Motion is transmitted from the driving shaft of the topmost conveyor 14 of the system 2 through a variable speed gear 24 (FIG. 2), a reducer 25 and driving chains 26, 27 and 28 to the driving shaft of the transverse conveyor 4.
  • Motion is transmitted to the driving shaft of the inclined conveyor 6 from the driving shaft of the additional conveyor 7 through a bevel gear couple 29.
  • the reinforcing fabric unrolling and spreading mechanism 19 receives motion from the driving shaft of the transverse conveyor 3 through a chain transmission 32.
  • the herein described apparatus for treating carded fibrous materials, embodying the invention operates, as follows.
  • the lower end portion of the inclined conveyor 6 is raised into its lifted adjusted position by rotating the adjustment nut 9 about the screw 8 in a corresponding direction.
  • the transverse conveyor 3 is connected via the chain transmission 30 to the transverse conveyor 4, and the clutch 18 (FIG. 2) is disengaged, for the additional conveyors 6 and 7 to receive no driving torque through the chain 17 (FIG. 3).
  • the fabric unrolling and spreading mechanism 19 (FIG. 1) is connected via the chain transmission 32 to the driving shaft of the transverse conveyor 3. According to this mode of operation, a reel with woven reinforcing fabric is mounted into the mechanism 19, and the latter places the fabric being unwound from this reel onto the moving conveyors 3 and 4, for the fabric to serve as a reinforcing structure for the web being produced.
  • Carded fibrous material with longitudinally extending fibers is supplied by the first carding engine (not shown) onto the topmost conveyor 11 of the first system 1 of the longitudinal conveyors, wherefrom it is transferred onto the compensating conveyor 12 and then is further transferred onto the lap-laying conveyor 13 which places the fibrous material upon the transverse conveyor 3.
  • the linear speed of the transverse conveyor 3 being several times smaller than that of the longitudinal conveyors of the first system 1, a thick layer, or lap of the carded fibrous material is formed thereon.
  • the transverse conveyor 3 is mounted for travel at right angles to the longitudinal conveyors of the first system 1, the carded fibrous material is laid thereon with the fibers extending laterally of the conveyor 3.
  • the transverse conveyor 3 carries the lap onto the transverse conveyor 4, onto which the second system 2 of the longitudinal conveyors places the second lap of carded fibrous material, overlying the first lap and also having the fibers extending in a lateral direction, in a manner similar to that described for the first system 1 of the longitudinal conveyors.
  • a reinforcing woven fabric may be interlaid between the two laps by means of the fabric unrolling and spreading mechanism 19.
  • the lower end portion of the inclined conveyor 6 is lowered into its bottom operating position.
  • the transverse conveyor 3 and the inclined conveyor 6 are drivingly connected with each other via the chain transmission 31.
  • the chain transmissions 30 and 32 are disconnected, and the clutch 18 is engaged, for motion to be transmitted from the driving chain 17 of the system 2 of the longitudinal conveyors to the additional conveyors 6 and 7. Consequently, the linear speed of the transverse conveyor 3 is made equal to those of the inclined conveyor 6, of the additional conveyor 7 and of the longitudinal conveyors of the system 2.
  • a thin veil-like web of fibrous material is formed on the transverse conveyor 3, with the fibers extending laterally of the conveyor.
  • This thin web of the fibrous material is picked off the conveyor 3 by the inclined conveyor 6 which carries the web onto the device 5 which changes the direction of the feed of the web by and thus transfers it upon the additional conveyor 7.
  • the direction of the travel of the additional conveyor 7 being opposite to that of the topmost conveyor 14 of the system 2 of the longitudinal conveyors, the web with the fibers extending laterally thereof is placed by the additional conveyor 7 directly upon the topmost conveyor 14, which latter already carries a web of fibrous material with the fibers extending longitudinally thereof, supplied by the second carding engine (not shown in the drawings).
  • the motion of the two webs is illustrated by the respective arrow in FIGS. 1, 2 and 3.
  • a two-ply web is formed on the topmost conveyor 14 of the system 2 of the longitudinal conveyors, with the fibers in the two layers, forming the web, extending in perpendicular directions. Then the conveyors l4, l5 and 16 of the system 2 of the longitudinal conveyors place the two-ply web upon the transverse conveyor, where a two-ply thick lap is formed in a manner similar to that described above for the case of forming a lap with laterally extending fibers.
  • An apparatus for treating carded fibrous material for forming a web of said material, to be used in the production of nonwoven textile materials comprising: a first system of superposed longitudinal conveyors for receiving carded fibrous material; a second system of superposed longitudinal conveyors for receiving carded fibrous material, said second system of longitudinal conveyors being arranged parallel to said first system of longitudinal conveyors; a first transverse conveyor underlying the first system of longitudinal conveyors, said first system including means for laying laps of carded fibrous material on the first transverse conveyor; a second transverse conveyor underlying the second system of longitudinal conveyors; said second system including means for laying fibrous material on the second transverse conveyor; said first and said second transverse conveyors being aligned with each other such that the fibrous material in the first transverse conveyor can be placed on the second transverse conveyor; means for changing the direction of feed of a lap of fibrous material by 90 angular degrees, disposed above said second system of longitudinal conveyors; a first additional conveyor disposed intermediate said two systems of longitudinal conveyor
  • An apparatus for treating carded fibrous material comprising means pivotably connecting the upper end portion of said inclined first additional conveyor to said means for changing the direction of feed of a lap of fibrous material by 90 angular degrees, and means connecting the bottom end portion of said inclined first additional conveyor to said first transverse conveyor for adjusting the position of said bottom end portion in a vertical plane

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US823015A 1969-05-08 1969-05-08 Apparatus for treating carded fibrous material for forming a web of said material Expired - Lifetime US3651543A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US82301569A 1969-05-08 1969-05-08
AT502669A AT316365B (de) 1969-05-08 1969-05-27 Vorrichtung zur Herstellung eines Faservlieses durch Übereinanderschichten von herangeführten Florbahnen
GB28323/69A GB1248524A (en) 1969-05-08 1969-06-04 An apparatus for forming a web to be used in the production of non-woven textile materials
FR6919717A FR2049593A5 (de) 1969-05-08 1969-06-13

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US3651543A true US3651543A (en) 1972-03-28

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US823015A Expired - Lifetime US3651543A (en) 1969-05-08 1969-05-08 Apparatus for treating carded fibrous material for forming a web of said material

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US (1) US3651543A (de)
AT (1) AT316365B (de)
FR (1) FR2049593A5 (de)
GB (1) GB1248524A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106166A (en) * 1976-03-10 1978-08-15 The Stearns & Foster Company Method for expanding the width of preformed fibrous webs
US4219911A (en) * 1976-03-10 1980-09-02 The Stearns & Foster Company Apparatus for expanding the width of preformed fibrous webs
US5361466A (en) * 1993-10-18 1994-11-08 Schuller International, Inc. Method of forming a blanket of uniform thickness

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2677046B1 (fr) * 1991-06-03 1995-01-13 Asselin Ets Etaleur-nappeur.
US5289617A (en) * 1991-06-03 1994-03-01 Asselin (Societe Anonyme) Spreading and lap-forming machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US188495A (en) * 1877-03-20 Improvement in the arrangement of lapping-machines
US2237049A (en) * 1939-01-30 1941-04-01 Cavedon Alexander Transfer mechanism for carding machines
DE897089C (de) * 1941-10-14 1953-11-19 Haas Friedrich Maschf Verfahren und Vorrichtung zum OEffnen und Trocknen einer durch Anschwemmen und Ausquetschen gebildeten Faser-Vlies-Bahn
FR1240846A (fr) * 1958-12-13 1960-09-09 Mak Maschinenbau Kiel Ag Installation destinée à réunir plusieurs couches cardées ou d'ouate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US188495A (en) * 1877-03-20 Improvement in the arrangement of lapping-machines
US2237049A (en) * 1939-01-30 1941-04-01 Cavedon Alexander Transfer mechanism for carding machines
DE897089C (de) * 1941-10-14 1953-11-19 Haas Friedrich Maschf Verfahren und Vorrichtung zum OEffnen und Trocknen einer durch Anschwemmen und Ausquetschen gebildeten Faser-Vlies-Bahn
FR1240846A (fr) * 1958-12-13 1960-09-09 Mak Maschinenbau Kiel Ag Installation destinée à réunir plusieurs couches cardées ou d'ouate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106166A (en) * 1976-03-10 1978-08-15 The Stearns & Foster Company Method for expanding the width of preformed fibrous webs
US4219911A (en) * 1976-03-10 1980-09-02 The Stearns & Foster Company Apparatus for expanding the width of preformed fibrous webs
US5361466A (en) * 1993-10-18 1994-11-08 Schuller International, Inc. Method of forming a blanket of uniform thickness

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Publication number Publication date
GB1248524A (en) 1971-10-06
AT316365B (de) 1974-07-10
FR2049593A5 (de) 1971-03-26

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