US2915170A - Co-acting wheels for feeding multifilament strands - Google Patents

Co-acting wheels for feeding multifilament strands Download PDF

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Publication number
US2915170A
US2915170A US334806A US33480653A US2915170A US 2915170 A US2915170 A US 2915170A US 334806 A US334806 A US 334806A US 33480653 A US33480653 A US 33480653A US 2915170 A US2915170 A US 2915170A
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US
United States
Prior art keywords
strand
wheels
pulling
feeding
fibers
Prior art date
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
Application number
US334806A
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English (en)
Inventor
Slayter Games
William R Steitz
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.)
Owens Corning
Original Assignee
Owens Corning Fiberglas Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Owens Corning Fiberglas Corp filed Critical Owens Corning Fiberglas Corp
Priority to US334806A priority Critical patent/US2915170A/en
Priority to DEO3373A priority patent/DE962109C/de
Priority to GB1605/54A priority patent/GB739245A/en
Priority to FR1095882D priority patent/FR1095882A/fr
Priority to CH318394D priority patent/CH318394A/de
Application granted granted Critical
Publication of US2915170A publication Critical patent/US2915170A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/03—Drawing means, e.g. drawing drums ; Traction or tensioning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/02—External structure or shape details
    • C03B2203/06—Axial perturbations, e.g. twist, by torsion, undulating, crimped

Definitions

  • This invention relates to co-acting rotary wheels for feeding strands at high linear speeds and, more particupast. Such pulling wheels have been made with resilient surfaces in order to permit the wheels to be set so that their surfaces are compressed and thus tightly grasp the strand being fed.
  • the strand being fed consists of a multiplicity of'filaments as, for example, in the glass fiber arts, where the strand may comprise 200 or more individual filaments attenuated together to form a strand, and where the strand is fed at extremely high speeds, say, in the order of 10,000 feet per minute, smooth surface pulling wheels have several serious faults which, under, certain conditions, render them virtually useless.
  • Licking may involve the entire strand or it may involve only a few of the fibers. In the latter case, some of the fibers may cling to each of the wheels, or some may cling and the remainder continue to be fed. In either of these latter cases, the integrity of the strand itself is destroyed, the fibers which lick on the wheels are torn away from the strand and may, in fact, be wrapped around one or the other, or both, of the pulling wheels.
  • the feeding operation must be stopped because the feeding or pulling operation may I be taking place at a speed in the order of that mentioned above, and a substantial number of wraps on turns of the licked fibers or strand may be made before an operator can stop the machine. The operator must then cut away the licked fibers or strand, restore the integrity of the strand and start feeding again.
  • the principal object of this invention to provide co-acting pulling wheels particularly effective for feeding multifilament strands and so designed that the strand and its fibers are rejected by the pulling wheels, thus reducing the tendency for the strand or any of its fibers to lick on the wheels.
  • -It is a further object of this invention to provide a pair of co-acting pulling wheels which apply pulling force to all the individual fibers of a multifilament strand.
  • a still further object of this invention consists in providing a method for feeding a continuous multifilament strand by engaging said strand between the spaced pro'- truding portions of opposed, interdigitated instrumentalities and simultaneously moving the protruding portions along the path of movement of the strand.
  • Fig. l is a simplified diagrammatic showing of apparatus employed for pulling and feeding multifilament glass fiber strands and illustrating pulling wheels embodying the invention as employed therewith.
  • Fig. 2 is an enlarged fragmentary view in elevation of the pulling wheels shown in Fig. 1 and illustrating more clearly how the surfaces engage each other and with a multifilament strand being fed thereby.
  • Fig. 3 is a view similar to Fig. 2 but of a modification of the invention employing a surface configuration different from that shown on the wheels illustrated in Figs. 1 and 2. l
  • Fig. 4 is a fragmentary vertical sectional view taken substantially on the line 4-4 of Fig. 2.
  • Fig. 5 is a view similar to Fig. 4 but taken on the line 5 s of Fig. 3.
  • Fig. 6 is a fragmentary view in elevation with certain parts being broken away of a modified form of construction constituting still another embodiment of the invention and illustrating the formation of pulling wheels embodying the invention by the proper association of multiple parts.
  • Fig. 7 is a fragmentary vertical sectional view taken on a plane through the axis of one of the pulling wheels shown in Fig. 6.
  • Multifilarnent glass fiber strands may be formed, as shown in Fig. 1, by providing a source of molten glass as, for example, a tank 10 having a plurality of nipples 11 each of which has a small orifice through which a fine stream of molten glass is'caused to flow. By approlinearly at high speed, beingattenuated into individual fibers 12 and gathered by a gathering eye or similar means 13 to form a multifilament strand 14.
  • the linear feeding of the multifilament strand 14 and thus the formation of individual fibers 12 is accomplished according to the invention by feeding the strand 14 between the 'bite of a pair of co-acting rotating pulling wheels --15 shown in enlarged scale in Fig. 2.
  • Each of the pulling wheels 15 has a hub 16, a web 17 and a tire-like rim 18.
  • the rim 18 is molded from, for example, rubber or similar resilient material to provide a scalloped outline consisting of projecting portions 19 and alternating valleys 20.
  • the tire 18 may be bonded or otherwise secured to the web 17 of the pulling wheel '15 as shown in Fig. 4. i
  • the strand 14 (Fig.2) is led between the bite of the pulling wheels 15 where it is laterally deformed by the engagement of a projection 19a on the one pulling wheel 15 with a valley 20a on the other pulling wheel 15.
  • the hubs 16 and the axes of the pulling wheels 15 are so spaced from each other laterally that the projections 19 and valleys 20 tightly engage each other to deform the resilient material from which the tire 18 is fabricated.
  • the strand 14 is given a generally sinusoidal form as it leaves the bite between the pulling wheels 15.
  • the strand 14 or its fibers would not tend to cling to the surface of the tire 18 in the valleys 20 but if the fibers making up the strand 14 were to lick around either of. the Wheels 15 they would lie in a general circular shape engaging only the sum of the scalloped peripheries) a greater linear length of strand passes between the pulling wheels 15 for each complete revolution, for example, than would be required to stretch around either of the pulling wheels contacting only the summits of the projections 19.
  • wheels When smooth, circular periphery, wheels are used, they may be squeezed tightly together to compress the resilient tire material in the bite between the wheels to provide for a longer line of contact with the strand 14.
  • the considerable compressive force required to accomplish this lengthening of the contact distance is deleterious to the life of the rims or tires on the pulling wheels and the excessive compression of the treads may cause the strand to pull apart.
  • FIG. 3'and 5 illustrates how a scalloped periphery of an entirely different configuration operates to accomplish substantially the same improved results as those accomplished by the first embodiment of the invention shown in Figs. 1, 2 and 4.
  • two pulling wheels 21 are shown as having webs 22 and tire-like rims 23.
  • the rims 23 consist of projections 24 having arcuate profiles and all lying on the same arc concentrio with the pulling wheels 21, spacedby cylindrically shaped depressions 25.
  • the rim 23 may be bonded (Fig. 5) or otherwise secured to the web 22 of the pulling wheel 21 and in'Fig.5 the pulling wheel 21 is shown as being formed of reinforced resinous material.
  • the material from which the wheel 21 is made does not constitute a part of the instant invention and it may be reinforced resinous mateterial or other lightweight material 'having structural integrity, for example, aluminum, magnesium and. similar materials.
  • the radii of the cylindrical depressions 25 areall the same and the depth and cordal length of the depressions 25 are such that when a depression 25a and a projection 24:: are intermeshed at the bite between the pulling wheels 21, the end of the projection 24a is slightly deformedand pressed into the surface of the depression25a to provide for tight grasping of the strand 14a being fed therethrough.
  • the embodiment of the invention shown in Figs. 3 and 5 may more sharply deform the strand 14a being fed than does that shown in Figs. 1, 2 and 4 and it may haveaa lesser line of contact with the strand between the projections and depressions forming the scalloped peripheries of the pulling wheels.
  • the disparity be tween linear length of the strand being fed and thetotal circumferential surface of the pulling wheels is considerable and again, as in the first embodiment of the invention, there is no discernable tendency for the strand 14a or its individual fibers to cling to the surfaces of the pulling wheel 21, to be split or to lick on the wheels.
  • two co-acting pulling wheels 26 have hub sections 27 (Fig. 7), formed webs 28 and rims 29.
  • the rims 29 serve to mount tires 30.
  • the tires 30 are illustrated as being formed from reinforced resinous material and as mounting resilient, semi-cylindrical lugs 31.
  • Each of the lugs 31 has a semi-cylindrical main body 32, shank 33 and a flange 34.
  • the flange 34 and shank 33 serve to retain the lug 31 in the tire 30 with the generally diametric surface of the body 32 lying on the arcuate surface of the tire 30.
  • each lug 31 on one of the pulling wheels 26 intermeshes or interdigitates with two lugs on the other pulling wheel 26 in a manner substantially identical with the intermeshing of the projections 19 and 24, respectively, shown in Figs. 2 and 3, with the valleys 20 and 25, respectively, shown in those figures.
  • the axes of the pulling wheels 26 are so spaced from each other that each of the lugs 31 is deformed slightly by engagement with the arcuate surface of the other one of the tires 30 between the lugs 31 on the other one of the pulling wheels 26 in grasping and feeding a multifilament strand 14b.
  • the use of pulling wheels embodying the invention for the longitudinal feeding of multifilament strands at high linear speeds thus improves the operation not only by feeding all of the fibers of the strands uniformly (snubbing) but it virtually eliminates licking of the strands or their fibers on the pulling wheels and the de' structive and expensive strand separation or disintegration caused thereby; saving both labor and material and resulting in longer wheel life, less damage to the strands being fed and better control over the operation as a whole.
  • Apparatus for linearly feeding a multifilament, un twisted strand comprising a plurality of fine fibers oriented and laterally compacted into close parallel relationship
  • said apparatus comprising a pair of pullingelements having interdigitated, undulatory surfaces at least one of which is resilient, means mounting said elements so that the surfaces are pressed tightly together around and against opposite sides of said strand, means for guiding said strand between the engaged undulatory surfaces of said pulling elements, means for moving said pulling elements for drawing and projecting said strand along a generally linear pathway with an impetus greatly in excess of that to be achieved by said strand under free fall, said mating undulatory surfaces acting to pull said strand and for laterally displacing said strand upon opposite sides of the center line of such pathway upon departure of said strand from the bite between said pulling elements.
  • said pulling elements comprise a pair of rotary elements having interdigitated undulatory surfaces and in which the higher surfaces of one of said elements are pressed tightly against'the lower surfaces of the other of said elements in the bite between said elements.
  • Apparatus for feeding an untwisted strand under tension said strand consisting of a high number of fine, continuous filaments that are oriented and laterally compacted into close parallel relationship and that tends to separate with at least some of its filaments clinging to a feeding surface
  • said apparatus comprising a pair of rotary elements having complementary undulatory surfaces, at least one of said surfacesbeing resilient, means for mounting said elements on spaced parallel axes with surfaces thereof in tight mated engagement in the bite between said elements, means for guiding said strand into the bite between said elements, the axes of said elements being so spaced that during rotation said surfaces are in engagement with each other around said strand and on opposite sides of said strand for applying tension for feeding said strand along a generally linear pathway that is tangential to the paths of movement of said surfaces and for deforming said strand alternately to opposite sides of said linear pathway while in engagement between and with said surfaces, and means for rotating said elements at such high speed that said strand is projected from between said surfaces and departs therefrom without clinging to

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Moulding By Coating Moulds (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Tires In General (AREA)
  • Ropes Or Cables (AREA)
US334806A 1953-02-03 1953-02-03 Co-acting wheels for feeding multifilament strands Expired - Lifetime US2915170A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US334806A US2915170A (en) 1953-02-03 1953-02-03 Co-acting wheels for feeding multifilament strands
DEO3373A DE962109C (de) 1953-02-03 1954-01-17 Vorrichtung zum Herstellen eines endlosen mehrfaedigen Glasfaserstranges
GB1605/54A GB739245A (en) 1953-02-03 1954-01-19 Improvements in or relating to co-acting wheels for feeding multifilament strands
FR1095882D FR1095882A (fr) 1953-02-03 1954-01-20 Appareil à étirer des filets de verre fondu
CH318394D CH318394A (de) 1953-02-03 1954-02-02 Ziehvorrichtung für Faserbahnen aus Glasfäden

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US334806A US2915170A (en) 1953-02-03 1953-02-03 Co-acting wheels for feeding multifilament strands

Publications (1)

Publication Number Publication Date
US2915170A true US2915170A (en) 1959-12-01

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ID=23308918

Family Applications (1)

Application Number Title Priority Date Filing Date
US334806A Expired - Lifetime US2915170A (en) 1953-02-03 1953-02-03 Co-acting wheels for feeding multifilament strands

Country Status (5)

Country Link
US (1) US2915170A (de)
CH (1) CH318394A (de)
DE (1) DE962109C (de)
FR (1) FR1095882A (de)
GB (1) GB739245A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139226A (en) * 1954-12-20 1964-06-30 Owens Corning Fiberglass Corp Apparatus for feeding a continuous untwisted multifilament strand
US3964657A (en) * 1973-07-04 1976-06-22 Barmag Barmer Maschinenfabrik Aktiengesellschaft Yarn transporting apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB851160A (en) * 1958-05-14 1960-10-12 Versil Ltd Improvements in or relating to insulating material
DE2422563A1 (de) * 1973-07-04 1975-11-13 Barmag Barmer Maschf Vorrichtung zur foerderung von faserkabeln

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030252A (en) * 1932-11-18 1936-02-11 Celanese Corp Manufacture of textile materials
US2090669A (en) * 1934-03-29 1937-08-24 Celanese Corp Artificial fiber
US2230272A (en) * 1938-08-04 1941-02-04 Owens Corning Fiberglass Corp Method of producing glass fibers
US2291289A (en) * 1939-09-28 1942-07-28 Owens Corning Fiberglass Corp Apparatus for making siliceous fibers
US2419320A (en) * 1943-05-08 1947-04-22 Lohrke James Louis Process and apparatus for producing staple fibers
US2654182A (en) * 1951-05-11 1953-10-06 Int Harvester Co Glass fiber drawing device
US2715299A (en) * 1952-08-14 1955-08-16 Owens Corning Fiberglass Corp Rollers for feeding a continuous strand
US2729030A (en) * 1954-07-02 1956-01-03 Owens Corning Fiberglass Corp Method of and apparatus for linearly feeding an untwisted, multifilament strand

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR654817A (fr) * 1928-05-24 1929-04-11 Traitement de fils en soie artificielle et en autres matières pour leur faire jouer le rôle de fils de laine
US1923183A (en) * 1932-01-26 1933-08-22 Hans J Blum Filament spinning apparatus
US2348182A (en) * 1938-08-04 1944-05-02 Owens Corning Fiberglass Corp Apparatus for producing fibrous glass
US2332274A (en) * 1941-02-01 1943-10-19 Owens Corning Fiberglass Corp Fiber forming apparatus
US2494642A (en) * 1945-06-12 1950-01-17 Libbey Owens Ford Glass Co Corrugating mold

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030252A (en) * 1932-11-18 1936-02-11 Celanese Corp Manufacture of textile materials
US2090669A (en) * 1934-03-29 1937-08-24 Celanese Corp Artificial fiber
US2230272A (en) * 1938-08-04 1941-02-04 Owens Corning Fiberglass Corp Method of producing glass fibers
US2291289A (en) * 1939-09-28 1942-07-28 Owens Corning Fiberglass Corp Apparatus for making siliceous fibers
US2419320A (en) * 1943-05-08 1947-04-22 Lohrke James Louis Process and apparatus for producing staple fibers
US2654182A (en) * 1951-05-11 1953-10-06 Int Harvester Co Glass fiber drawing device
US2715299A (en) * 1952-08-14 1955-08-16 Owens Corning Fiberglass Corp Rollers for feeding a continuous strand
US2729030A (en) * 1954-07-02 1956-01-03 Owens Corning Fiberglass Corp Method of and apparatus for linearly feeding an untwisted, multifilament strand

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139226A (en) * 1954-12-20 1964-06-30 Owens Corning Fiberglass Corp Apparatus for feeding a continuous untwisted multifilament strand
US3964657A (en) * 1973-07-04 1976-06-22 Barmag Barmer Maschinenfabrik Aktiengesellschaft Yarn transporting apparatus

Also Published As

Publication number Publication date
CH318394A (de) 1957-01-15
GB739245A (en) 1955-10-26
DE962109C (de) 1957-04-18
FR1095882A (fr) 1955-06-07

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