US3861608A - Traversing mechanism - Google Patents

Traversing mechanism Download PDF

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Publication number
US3861608A
US3861608A US410679A US41067973A US3861608A US 3861608 A US3861608 A US 3861608A US 410679 A US410679 A US 410679A US 41067973 A US41067973 A US 41067973A US 3861608 A US3861608 A US 3861608A
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United States
Prior art keywords
cam members
strands
series
traversing
axis
Prior art date
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Expired - Lifetime
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US410679A
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English (en)
Inventor
John Gilbert Mohr
James William Hartman
David Michael Arno
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Johns Manville Corp
Johns Manville
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Johns Manville
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Publication date
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Priority to US410679A priority Critical patent/US3861608A/en
Priority to BE149573A priority patent/BE821120A/xx
Priority to IT53604/74A priority patent/IT1021848B/it
Priority to JP49124014A priority patent/JPS5140176B2/ja
Application granted granted Critical
Publication of US3861608A publication Critical patent/US3861608A/en
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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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2836—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn
    • B65H54/2845—"screw" type Owens Fiberglas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S242/00—Winding, tensioning, or guiding
    • Y10S242/92—Glass strand winding

Definitions

  • the traversing mechanisms of the present invention are primarily intended for use in the manufacture of continuous glass strands.
  • a plurality of continuous glass strands are drawn from a bushing and are wound onto packages.
  • the packages produced in this operation are intended for use as sprayup gun rovings.
  • these packages must be void of loops, gobs and snarls so that the roving will readily unwind from a package and pass through the chopping operations required in a sprayup gun roving operation.
  • a primary traversing mechanism comprising a plurality of elongate straight elements which are supported in spaced-apart parallel relationship to define a cylindrical pattern with the elements extending at an oblique angle relative to the axis of rotation of the traversing mechanism (e.g. a birdcage traverse) for producing packages suitable for sprayup gun roving operations have been unsuccessful.
  • Such traversing mechanisms are suitable for forming packages used for other purposes but for sprayup gun roving operations they cause too wide a splitting of the strands at their point of entry into the package, e.g. about a half inch.
  • Prior art traverses include traverses illustrated in US. Pat. Nos. to Hayden et al., No. 3,040,999 issued June 26, 1962; Hayden No. 3,292,872 issued Dec. 20, 1966; Frickert No. 3,056,771 issued Oct. 2, 1962; Genson No. 3,399,841 issued Sept. 3, 1968, and Genson No. 3,414,956 issued Dec. 10, 1968.
  • the Hayden patents work well with a single strand but cause too great a split when used on a plurality of strands, thereby causing problems similar to those experienced with the birdcage traverse.
  • the Frickert patent illustrates a traverse with a pair of spirally shaped complementary cam members for forming split strands which are brought together at spaced intervals.
  • the first Genson patent relates to a barrel type traverse which is somewhat similar to the birdcage traverse mentioned above.
  • the second Genson patent relates to a traverse with a pair of straight cam members for traversing split strands with a comb being used to help maintain the strands in a split relationship.
  • the spread preferably does not exceed about a quarter inch at the point of entry of the strands to the forming package. It is a further object to provide a traversing mechanism which does not destroy the integrity of the strands so that the strands do not break up during the sprayup gun roving operation into the individual filaments making up the strands.
  • the present invention comprises a traversing mechanism having a first series of cam members and a second series of cam members which are mounted for rotation about the axis of rotation of the traversing mechanism.
  • Each of the cam members has an outwardly facing convex surface for engaging the strands and for maintaining the strands in a split relationship except at spaced intervals when the strands are momentarily brought together.
  • the convex surfaces for the first'series of cams face in a direction opposing the convex surfaces of the second series of cams.
  • the convex surfaces for the successive cam members of each of said series are progressively displaced relative to preceding cam members in a direction parallel to the axis of rotation of the traversing mechanism whereby the first series of cam members move the strands in one direction and the second series of cams move the strands in the opposite direction.
  • Preferably all of the convex surfaces have the same radius of curvature and the convex surfaces are spaced radially outward from the axis of rotation of the traversing mechanism.
  • FIG. 1 is a front elevation of an apparatus for forming a plurality of multi-filament glass strands and for winding the plurality of strands into packages;
  • FIG. 2 is an end elevation of the apparatus of FIG. 1 as viewed from the right of FIG. 1;
  • FIG. 3 is a perspective view of a first traversing mechanism of the present invention
  • FIG. 4 illustrates one of the two sets of cam members of the traversing mechanism of FIG. 3;
  • FIG. 5 is a perspective view of a second traversing mechanism of the present invention.
  • FIG. 6 illustrates one of the two sets of cam members of the traversing mechanism of FIG. 5.
  • FIg. 7 is a perspective view of a third traversing mechanism of the present invention.
  • FIG. 8 illustrates one of the two sets of cam members for the traversing mechanism of FIg. 7.
  • FIGS. 1 and 2 illustrate a pair of traversing mechanisms 20 of the present invention which are utilized in an apparatus 22 for forming a plurality of multifilament continuous glass strands.
  • the apparatus 22 includes a glass-melting receptacle or bushing 24 from which a plurality of filaments 26, e.g. 1,600 filaments, are drawn by rotating cores 28 that are mounted on a rotating mandrel 30 which is driven by a motor 32.
  • the filaments 26 are gathered into a plurality of strands 34, e.g. eight ZOO-filament strands, by converging rollers 36.
  • the strands are then wound onto the rotating cores 28 to form packages 38. Binders and the like are applied to the filaments 26 as they are being drawn together to form the strands 34 by a conventional binder applicator 40.
  • the traversing mechanisms are the primary traversing assembly and the traversing assembly 42 is the secondary traversing assembly.
  • the secondary traversing assembly 42 includes a double-acting hydraulic piston and cylinder assembly 44 which reciprocates the packages 38 back and forth relative to the traversing mechanisms 20 by moving the mandrel support 46.
  • the packages 38 are each carried on the mandrel so that the centers of the packages 38 lie in vertical planes which are centered relative to the series of strands 34 being wound onto the particular package when the package is midway along its traversing path.
  • the length of the reciproeating movement of the secondary traverse is regulated to form the packages 38 to the desired width.
  • the traversing mechanisms 20 of the primary traversing assembly effect a series of progressive and regressive bights of the strands.
  • the series of bights is effected to deter the formation of a parallel lay of adjacent windings.
  • the primary traverse effects a series of rapidly formed progressive and regressive bights of small amplitude while the secondary traverse effects a relatively slow progression of these bights across the package being formed to helically wrap the series of bights back and forth across the entire width of the package.
  • While the secondary traversing motion is generally effected by moving the mandrel 30 relative to the traversing mechanisms 20 which are held stationary, it will be understood that the secondary traversing action can be effected by holding the mandrel 30 stationary and moving the primary traverses 20 in an axial direction relative to the mandrel 30.
  • the traversing mechanisms 20 are rotated by a motor 48 and are rotatably mounted on pivotal mounting brackets 50.
  • the brackets 50 are pivoted about an axis 52 by a mechanism 54 such as that illustrated in U.S. Pat. No. 3,695,523 issued oct. 3, 1972, to Samual R. Genson et al.
  • the primary traversing mechanisms 20 are moved away from the winding axis of the packages 38 as the packages build up in diameter to maintain the traversing mechanism a desired distance away from the peripheral surfaces of the packages being formed. While FIGS. 1 and 2 illustrate an assembly wherein the primary traversing mechanisms 20 are moved away from the packages 38, means can also be provided to move the packages 38 away from the traversing mechanisms.
  • FIGS. 3 and 4 illustrate the first traversing mechanism 20 of the present invention which includes a plurality of elongated cylindrical rods or wires forming cam members which are mounted at each end in collars 62.
  • the rods 60 extend parallel with respect to each other and lie in planes which contain the axis of rotation 64 of the traverse mechanism.
  • the rods 60 are spaced 45 from adjacent rods with the ends of the rods 60 being received within apertures of the collars 62.
  • the rods are secured to the collars by set screw 66, similar fastening devices, or by brazing.
  • FIG. 4 illustrates one of the sets 68.
  • the other set 70 of cam members comprises four complementary cam members which are the mirror image of the cam members illustrated in FIG. 4.
  • Complementary cam members of the two sets are located 180 apart and lie in the same plane which also includes the axis of rotation 64 of the traversing mechanism.
  • Each cam member 60 includes end portions 72 and 74 which are mounted in the collars 62.
  • the end portions 72 and 74 each have sections 76 and 78 which extend in a radial direction relative to the axis of rotation of the traversing mechanism.
  • each cam member is provided with at least a first intermediate portion 80 which extends generally parallel to the axis of rotation 64 of the traversing mechanism from the generally perpendicular section 76 of end portion 72.
  • Each of the cam members is provided with a convex portion 82 which has an outwardly facing convex surface.
  • the convex portion 82 extends between and merges with the intermediate section 80 and the perpendicular section 78. At the point where the intermediate portion 80 and the convex portion 82 merge. there is an outwardly facing concave portion (e.g. with a radius of curvature of about an inch) to assure a smooth transition between these portions.
  • the convex portion 82 merges with a second intermediate portion 84 located intermediate the convex portion 82 and the perpendicular portion 78.
  • Intermediate portion 84 also extends in a generally parallel direction relative to the axis of rotation of the traversing mechanism.
  • the radius of curvature of the convex portion 82 of each cam member is approximately 5 inches with the traverse mechanism having a maximum diameter of about 4% t 1 inches (4-96 inches is preferred) where the convex portion 84 merges with the section 78 or the intermediate portion 84 and a minimum diameter of about 3 i 1 inches (3 inches preferred) for portions 80 which hold the strands out from the axis of rotation of the traverse to prevent the split between the strands from becoming too great.
  • the entire cam member is about 6 inches long with the convex portion 82 for each successive cam member of a set being offset in a direction parallel to the axis of rotation of the traversing mechanism about an inch relative to the convex portion of the preceding cam member.
  • the mechanism repetitively forces the four strands together for an actual distance along the strands of 6 to 12 inches and successively permits them to be apart for a distance of 4 to 8 feet with the split for four strands being less than a quarter inch between the outermost strands at the point of entry into the forming package. With this degree of split, loops, gobs and snarls are eliminated and the roving is easily unwound from the package thus formed and passed through a sprayup gun. 7
  • FIGS. 5 and 6 illustrate a second traversing mechanism 90 of the present invention.
  • this traverse mechanism is mounted as shown in FIG. 1 and 2 and is made up of two sets 92 and 94 of cam members 96 with one set of cam members being a mirror image of the other set of cam members.
  • Complementary cam members of the two sets are located 180 apart and lie in the same plane which includes the axis of rotation of the traverse mechanism. Adjacent cam members are spaced relative to each other a distance of 45.
  • the cylindrical rods or wires which form the cam members 96 are mounted at each end in collars 98.
  • the cam members 96 extend parallel with respect to each other with the ends of the rods being received within apertures of the collars 98.
  • the cam members are secured to the collars by set screws 100, similar fastening devices or by brazing. Since one set of cam members is a mirror image of the other set of cam members, only set 92 will be described in detail to avoid unnecessary repetition.
  • Each cam member 96 includes end portions 102 and 104.
  • the end portions 102 of the cam members extend generally parallel to the axis of rotation of the traversing mechanism 90 and merge with outwardly facing convex portions 106 of the cam members.
  • the end portions 104 extend generally perpendicular to the axis of rotation of the traversing mechanism. In the first cam member of the set the end portion 104 merges with the convex portion 106. However, for the second, third and fourth cam members of the set the end portions 104 merge with an intermediate portion 108 which extends generally parallel to the axis of rotation of the traversing mechanism between the convex portion 106 and the end portion 104.
  • the cam members 90 are about 4- /2 inches long with the radius of curvature of the convex portion 106 of each member being about 2-5; inches.
  • the maximum diameter of the traverse is about 5 inches and the minimum diameter which corresponds with the diameter of end portions 102 is about l- /z inches.
  • the convex portions of the second, third and fourth cam members are displaced in a direction parallel to the axis of rotation of the traversing mechanism about 96 inch relative to the convex portions of preceding cam members.
  • FIGS. 7 and 8 illustrate the third traversing mechanism 110 of the present invention.
  • the traversing mechanism is made up of two sets, 112 and 114, of four cam members 116 each with one set of cam members being the mirror image of the other set of cam members.
  • Complementary cam members of the two sets are mounted on the traversing mechanism l apart with the cam members lying in a plane which also contains the axis of rotation of the traversing mechanism.
  • Adjacent cam members are spaced 45 apart and extend parallel with respect to each other.
  • the ends of the rods which form the cam members 116 are received within apertures of collars 118.
  • the rods are secured to the collars by set screws 120, similar fastening devices or by brazing.
  • each cam member has a first end portion 122 which extends generally parallel to the axis of rotation of the traversing mechanism and a second end portion 124 which extends generally perpendicular to the axis of rotation of the traversing mechanism.
  • An outwardly facing convex portion 126 of each of the cam elements merges with the end portion 122 and with an intermediate portion 128 which extends generally parallel to the axis of rotation of the traversing mechanism.
  • the intermediate portion 128 extends between and merges with both the convex portion 126 and end portion 124.
  • the convex portion 126 has a radius of curvature of about 5 inches.
  • the maximum diameter of the traversing mechanism is about 2- inches and the minimum diameter of the traversing mechanism is about l- /fi inches.
  • the convex portions are progressively spaced relative to preceding cam members of a set about 13/ 16 of an inch in a direction parallel to the axis of rotation of the traverse mechanism.
  • cam members of the traverse mechanism shown are made with bent wire, the cam members can be made with other equivalent members which would give the same type of point contact between the strands and cam members that the wires provide.
  • An apparatus for winding a plurality of continuous strands of flexible material about a core to form a package which apparatus includes a source of said strands, means for rotating said core about a first axis, a traversing mechanism rotatable about a second axis parallel to said first axis and adjacent to a peripheral surface of said package for imparting primary traversing motions to said strands as they are being wound on said package whereby said strands progress and regress to define a series of bights, and means for imparting a secondary traversing motion to the strands relative to the package to advance the series of bights across the peripheral surface of the package, the improvement comprising: said traversing mechanism comprising a first series of cam members and a second series of cam members, mounting means for supporting said cam members in fixed relative positions for rotation about the axis of rotation of said traversing mechanism, each of said cam member lying in a plane containing the axis of rotatioh of rotation of said traversing mechanism, each of said cam members having
  • each of said convex surfaces of said cam members has substantially the same radius of curvature with said cam members of said first and said second series which are spaced apart 180 being mirror images of each other.
  • each of said cam members has limiting means adjacent an inner end of said convex surfaces of said cam member for limiting the spacing between said split strands.
  • said limiting means comprises a second surface of said cam member merging with said convex surface end extending generally parallel with respect to said axis of rotation of said traversing mechanism.
  • minimum and maximum effective diameters of strand contacting surfaces of second surface and said convex surface are about 2- /2 inches and about l- /fi inches respectively.
  • said cam members are rods having rounded surfaces for contacting said strands with said cam members contacting said strands at spaced points along said strands.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
US410679A 1973-10-29 1973-10-29 Traversing mechanism Expired - Lifetime US3861608A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US410679A US3861608A (en) 1973-10-29 1973-10-29 Traversing mechanism
BE149573A BE821120A (fr) 1973-10-29 1974-10-16 Mecanisme a mouvement de va-et-vient
IT53604/74A IT1021848B (it) 1973-10-29 1974-10-17 Perfezionamento nei meccanismi a moto trasversale per l avvolgi mento di filati e filamenti
JP49124014A JPS5140176B2 (enrdf_load_html_response) 1973-10-29 1974-10-29

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JP (1) JPS5140176B2 (enrdf_load_html_response)
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025002A (en) * 1976-04-21 1977-05-24 Ppg Industries, Inc. Spiral for traversing strand material
US4239162A (en) * 1979-06-01 1980-12-16 Ppg Industries, Inc. Fiber traversing spiral
US5669564A (en) * 1996-02-09 1997-09-23 Ppg Industries, Inc. Spirals for traversing a strand during winding and winding apparatus including the same
US20100096488A1 (en) * 2005-06-24 2010-04-22 Saint-Gobain Technical Fabrics Europe Winding frame with monitored secondary travel
WO2011033334A1 (en) * 2009-09-18 2011-03-24 Ocv Intellectual Capital, Llc Apparatus for winding filaments or strands.
WO2025019627A1 (en) 2023-07-19 2025-01-23 Owens Corning Intellectual Capital, Llc Apparatus for winding filaments or strands

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7484279B2 (ja) * 2020-03-23 2024-05-16 日本電気硝子株式会社 トラバース装置
JP2022092651A (ja) * 2020-12-11 2022-06-23 島津産機システムズ株式会社 繊維巻取装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2391870A (en) * 1943-05-21 1946-01-01 Owens Corning Fiberglass Corp Traversing mechanism
US2989258A (en) * 1958-12-24 1961-06-20 Pittsburgh Plate Glass Co Traversing mechanism
US3040999A (en) * 1958-07-28 1962-06-26 Johns Manville Fiber Glass Inc Apparatus for packaging a strand of a flexible material
US3056711A (en) * 1957-08-23 1962-10-02 Owens Corning Fiberglass Corp Method of producing a bulk strand product integrated at spaced zones
US3292872A (en) * 1964-07-29 1966-12-20 Johns Manville Method and apparatus for traversing strand material
US3356304A (en) * 1964-12-23 1967-12-05 Johns Manville Apparatus for packaging strand material
US3399841A (en) * 1965-12-21 1968-09-03 Johns Manville Strand traversing device
US3414956A (en) * 1966-02-25 1968-12-10 Johns Manville Method and apparatus for winding plural strands
US3695523A (en) * 1970-10-26 1972-10-03 Johns Manville Strand handling apparatus
US3784121A (en) * 1971-03-02 1974-01-08 Johns Manville Traversing mechanism

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2391870A (en) * 1943-05-21 1946-01-01 Owens Corning Fiberglass Corp Traversing mechanism
US3056711A (en) * 1957-08-23 1962-10-02 Owens Corning Fiberglass Corp Method of producing a bulk strand product integrated at spaced zones
US3040999A (en) * 1958-07-28 1962-06-26 Johns Manville Fiber Glass Inc Apparatus for packaging a strand of a flexible material
US2989258A (en) * 1958-12-24 1961-06-20 Pittsburgh Plate Glass Co Traversing mechanism
US3292872A (en) * 1964-07-29 1966-12-20 Johns Manville Method and apparatus for traversing strand material
US3356304A (en) * 1964-12-23 1967-12-05 Johns Manville Apparatus for packaging strand material
US3399841A (en) * 1965-12-21 1968-09-03 Johns Manville Strand traversing device
US3414956A (en) * 1966-02-25 1968-12-10 Johns Manville Method and apparatus for winding plural strands
US3695523A (en) * 1970-10-26 1972-10-03 Johns Manville Strand handling apparatus
US3784121A (en) * 1971-03-02 1974-01-08 Johns Manville Traversing mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025002A (en) * 1976-04-21 1977-05-24 Ppg Industries, Inc. Spiral for traversing strand material
US4239162A (en) * 1979-06-01 1980-12-16 Ppg Industries, Inc. Fiber traversing spiral
US5669564A (en) * 1996-02-09 1997-09-23 Ppg Industries, Inc. Spirals for traversing a strand during winding and winding apparatus including the same
US20100096488A1 (en) * 2005-06-24 2010-04-22 Saint-Gobain Technical Fabrics Europe Winding frame with monitored secondary travel
US7866590B2 (en) * 2005-06-24 2011-01-11 Saint-Gobain Technical Fabrics Europe Winding frame with monitored secondary travel
WO2011033334A1 (en) * 2009-09-18 2011-03-24 Ocv Intellectual Capital, Llc Apparatus for winding filaments or strands.
WO2025019627A1 (en) 2023-07-19 2025-01-23 Owens Corning Intellectual Capital, Llc Apparatus for winding filaments or strands

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JPS5140176B2 (enrdf_load_html_response) 1976-11-01
BE821120A (fr) 1975-04-16
IT1021848B (it) 1978-02-20
JPS5071945A (enrdf_load_html_response) 1975-06-14

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