US2891798A - Winding mandrel for packaging glass strands - Google Patents

Winding mandrel for packaging glass strands Download PDF

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Publication number
US2891798A
US2891798A US621785A US62178556A US2891798A US 2891798 A US2891798 A US 2891798A US 621785 A US621785 A US 621785A US 62178556 A US62178556 A US 62178556A US 2891798 A US2891798 A US 2891798A
Authority
US
United States
Prior art keywords
tube
mandrel
segments
grooves
winding
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
US621785A
Other languages
English (en)
Inventor
Roy E Smith
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
Priority to DENDAT1050964D priority Critical patent/DE1050964B/de
Priority to BE562272D priority patent/BE562272A/xx
Application filed by Owens Corning Fiberglas Corp filed Critical Owens Corning Fiberglas Corp
Priority to US621785A priority patent/US2891798A/en
Priority to ES0238348A priority patent/ES238348A1/es
Priority to FR1185810D priority patent/FR1185810A/fr
Priority to CH352788D priority patent/CH352788A/de
Priority to GB34924/57A priority patent/GB843668A/en
Application granted granted Critical
Publication of US2891798A publication Critical patent/US2891798A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B65H54/2839—Traversing devices; Package-shaping arrangements with a rotating guide for traversing the yarn counter rotating guides, e.g. wings
    • 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
    • B65H54/40—Arrangements for rotating packages
    • B65H54/54—Arrangements for supporting cores or formers at winding stations; Securing cores or formers to driving members
    • B65H54/543—Securing cores or holders to supporting or driving members, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/20—Force systems, e.g. composition of forces
    • 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
    • B65H2701/312—Fibreglass strands
    • B65H2701/3122—Fibreglass strands extruded from spinnerets
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/24—Chucks or sockets by centrifugal force
    • Y10T279/247—Chucks or sockets by centrifugal force to grip tool or workpiece
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/26—Work driver
    • Y10T82/266—Mandrel
    • Y10T82/268—Expansible

Definitions

  • the present invention relates generally to mechanism for drawing and winding a glass thread or strand of the type formed by gathering together a large number of attenuated glass filaments. More specifically the invention pertains to a mandrel for holding an expansible, resilient tube upon which a glass strand is wound into a package.
  • This high compression force has the objectionable elfect of constricting the commonly used plastic forming tube, preferred because of its light weight and wearing qualities, into a smaller diameter, which makes it difficult to remove the tube from the mandrel. It also is inclined to bind the turns of the glass strand so tightly together around the tube that the unwinding operation for subsequent use or treatment, such as twisting and plying, is jerky and uneven.
  • the principal object of this invention is broadly to provide a winding mandrel that will function efiiciently in supporting an expansible, resilient tube upon which either one or two glass strands are very rapidly wound and to produce packages of glass strands so formed that are fully satisfactory in subsequent use.
  • a prime object of this invention is to provide centrifugally propelled elements adapted to embrace the major portion of the inner surface of a winding tube mounted on the mandrel.
  • Another object is the provision of a mandrel which expands the resilient winding tube in a manner that results in no serious binding between the courses of the glass strand wound in a package around the tube.
  • a further object is to provide a mandrel having a minimum number of parts which can be economically produced and easily assembled.
  • the mandrel of this invention has segments of T cross section with outer surfaces contacting the major portion of the interior of a tube mounted on it.
  • a single piece, solid core constitutes the main body member of a mandrel embodying the invention.
  • the core has an axial bore for receiving a driving spindle and outer grooves acting as retaining sockets for the segments.
  • the core and the segments have cross sections of uniform dimensions throughout their lengths.
  • the weight of the segments is proportioned in respect to the developed winding compression to permit gradual contraction of the expanded tube during the last portion of the package formation.
  • Figure l is a diagrammatic illustration of a conventional process for glass strand forming and winding into packages
  • Figure 2 is a longitudinal section, taken on line 2--2 of Figure 3, of a mandrel and tube embodying the invention
  • Figure 3 is a partial end view and cross section of the mandrel of Figure 2, the section being taken on the line 3-3 of Figure 2;
  • Figure 4 is a perspective view of one of the segments.
  • Figure is an enlarged broken section comparable to the section of Figure 3 showing the segments depressed during the last part of the winding operation.
  • Figure l is depicted, diagrammatically, a glass melting furnace 6 and a multiple-nozzle bushing 7 from which streams of glass 8 are discharged and attenuated into continuous filaments.
  • the individual filaments which usually number from one to two hundred, are gathered together into a single thread or strand 9 by a device such as hook 10.
  • a sizing coat is generally applied to the filaments adjacent the gathering device by some means such as a spray nozzle or by being passed over a pad saturated with a sizing liquid.
  • the strand 9 is then drawn down and wound into a package 13 upon the spool or tube 12.
  • a traversing device as indicated at M guides the strand back and forth over tube 12.
  • the traversing mecha nism 14 is a figurative showing of that disclosed in the patent to Fletcher No. 2,377,771 dated June 5, 1945. This mechanism may, of course, be of any conventional design capable of functioning at the high speed required.
  • a bracket 15 supporting spindle 16 on which the tube mandrel 18 is mounted extends upwardly from the housing (not shown) containing the motor and driving mecha nism for rotating the spindle through belt 19 running over pulley 29. More details of spindle it: and mandrel 18 may be observed in the subsequent figures of the drawing, with attention first directed to Figure 2.
  • a bearing assembly 21 one of a pair Within the bracket 15, supports the spindle close to the position of the mandrel on the spindle.
  • the core 24, constituting the main body of the mandrel 18, is held on the spindle against the tapered enlargement 26 of the spindle by a lock nut 27.
  • the core 24 has twelve grooves 39 running longitudinally in the outer face of the core for the full length thereof.
  • the grooves are similarly dimensioned and symmetrically positioned. They are dovetail in cross section, being wider at their bases.
  • each groove Above the flat bottom of each groove is a shallow section with straight sides. From this section the sides converge upwardly. The converging part 31 of the groove terminates in a narrow straight-sided top portion 32.
  • a tube contacting segment 34 Locked within each groove and extending the full length thereof is a tube contacting segment 34.
  • the segment has a T cross section with a flaring base 35 conforming in contour with the converging part 31 of the groove.
  • the portion of the segment, forming the top of the T section, is disposed exteriorly of the core and has an outer surface curved to fit the inner circumference of the winding tube positioned on the mandrel.
  • the segment has a short straight-sided neck 37 joining the top of the segment with the flaring base 35.
  • the ribs 38 lying between the grooves, are slightly peaked. Each flat half of the peak shape is below the flat underside of one side of the T portion of the adjacent segment.
  • the segments 34 are inserted into the grooves from the exposed end of the core before the head piece is fastened by bolts 41 upon the outer end of the core. The segments are then retained within the grooves between head piece dt? and the collar 43 bolted against the other end of the core.
  • each groove beneath the base 35 of the segment is a generally fiat spring 46 extending in a slight are between the ends of the groove. These springs incline the segments to their outermost positions when there is no tube over the mandrel, as illustrated in Figure 3.
  • the wind ing tube 12 is first placed over the mandrel. depress the segments 34 against the light tension of the springs 46. The outer ends of the segments are tapered to facilitate depression of the segments by the tube.
  • springs have sufficient strength to retain the tube in place without impeding its easy removal. While the tubes are generally conventional in shape and in their plastic composition, for purposes of this invention it is very desirable that their resilience and dimensions be uniform.
  • the starting end of the glass strand is manually tied around the tube.
  • the Winding drive is set in operation. This may be accomplished through release of a clutch which has been held in drive-disengaging position by the foot of the operator while he placed the tube on the mandrel and fastened the leading end of the glass strand around the tube.
  • the tube acceleretes to its selected speed (which may be ten thousand or more revolutions per minute) the segments are pro polled by centrifugal force from their retracted positions upon the springs outwardly against the interior of the tube.
  • the centripetal winding pressure increases. This is due, not only to the faster drawing of the strand required to supply the longer length to circumscribe the growing package during each revolution, but also to the slight stretching of the glass strand as it is wound. While the elastic property is limited to a maximum elongation of three percent, it is sufficient to produce a build up of the inwardly directed pressure as the layers of the strand accumulate.
  • the sturdy, solid construction of the core resists any deformation due to centrifugal force and therefore does not adversely influence the shape of the tube.
  • the segments also are built with sufiicient cross section that they remain fully rigid, and cooperate in applying an expanding pressure uniformly against substantially the full inner surface of the forming tube.
  • the non-deflecting character of the core and segments enable them to be utilized in elongated form to receive and properly wind two strands into separate packages upon a tube of a length suitable for double packaging.
  • the tapered surfaces of the grooves not only oppose the outward thrust of the segments but are also adapted to receive lateral pressure from the segments when they tend to move tangentially during the periods of acceleration and deceleration. This reduces the wear from such side thrust to which the straight radially guiding sides of the groove and the necks of the segments would otherwise be subjected.
  • the core and the segments together constitute a substantially solid, symmetrical, cylindrical mass with the exterior portions of the segments completing the cylinder in which the polyhedral core is inscribed. There is, accordingly, no area in the assembly where weight is concentrated which in rotation might cause a whipping or twisting effect.
  • a rotatable mandrel for holding an expansible, resilient tube upon which a glass strand or the like is wound to form a package which comprises as integral, cylindrical body member with an axial bore for receiving a driving spindle, and segmental elements of T cross section carried by the body member and extending the full length thereof, said elements being movable by centrifugal force, upon rotation of the mandrel, radially and outwardly from the body member, both said body member and said segmental elements being solidly formed with a substantially uniform cross section throughout their lengths, whereby under rotation of the mandrel they are not deformed by centrifugal force and the elements are moved outwardly with equal longitudinally distributed force.
  • a rotatable mandrel for holding an expansible, resilient tube upon which a package of glass strand is wound including an elongated, generally cylindrical body, substantially solid and uniform in cross section; gripping members, outwardly movable by centrifugal force, carried by the body and extending the full length thereof, said members being of uniform T shape in cross section; guiding means on the body comprising longitudinal grooves therein directing the members in radial paths, and limiting means comprising shoulders of lateral recesses in the grooves, restricting the outward centrifugal movement of the members.
  • a rotatable mandrel for holding an expansible, resilient tube upon which a glass strand is wound to form a package which comprises an integral body member of generally cylindrical form having an axial bore for reception of a driving spindle and with exterior longitudinal grooves extending the full length of the body member; elongated segmental elements carried by the body member and movable by centrifugal force radially and outwardly therefrom, inner leg portions of the segmental elements projecting into the grooves and radially guided thereby, exterior portions of the segmental elements being laterally broadened; and elongated springs lyin-g lengthwise in the grooves and arranged to impel the segmental elements outwardly; said body member, segmental elements and springs being of approximately equal length, whereby they all contribute to the uniform distribution of the weight of'the mandrel.
  • a rotatable mandrel for holding an expansible, resilient tube upon which a glass strand is wound into a package which comprises an integral body member having an axial bore for reception of a driving spindle and exterior grooves of dovetail cross section extending longitudinally of the body member, and segmental elements carried by the body member and movable by centrifugal force radially and outwardly therefrom, inner portions of the segmental elements projecting into the grooves and having lateral enlargements disposed beneath the angled shoulders of the dovetail configuration of the grooves, whereby outward movement of each segmental element caused by centrifugal force developed by rotation of the mandrel, is limited by the abutment of the lateral enlargements of the element against the angled shoulders of the associated groove.
  • a rotatable mandrel for holding an expansible, resilient tube upon which a package of a glass strand is wound which comprises a body member having exterior grooves running longitudinally thereof, said grooves being roughly dovetail in cross section, broadened at their bases with sides converging from the bases to upper narrow sections of the grooves, said narrow sections being bounded by straight parallel extensions of the sides; segmental elements of T section carried by the body member and movable upon rotation of the mandrel by centrifugal force radially and outwardly therefrom, and legs on the segmental elements, constituting the upright portion of the T section, extending into the grooves, said legs having a lower flaring section and an upper generally straight portion, the grooves and the legs being so arranged that the narrow sections of the grooves guide the segmental elements in their radial movement by contact with the upper, generally straight portions of the legs, and the converging sides of the grooves limit the outward movement of the segmental elements by intercepting the lower flaring sections of the legs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
US621785A 1956-11-13 1956-11-13 Winding mandrel for packaging glass strands Expired - Lifetime US2891798A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DENDAT1050964D DE1050964B (de) 1956-11-13 Aufwickelvorrichtung, insbesondere für aus einer Erzeugungsvorrichtung austretende, kontinuierliche Glasfaden
BE562272D BE562272A (es) 1956-11-13
US621785A US2891798A (en) 1956-11-13 1956-11-13 Winding mandrel for packaging glass strands
ES0238348A ES238348A1 (es) 1956-11-13 1957-10-31 Un aparato para estirar fibras de vidrio
FR1185810D FR1185810A (fr) 1956-11-13 1957-11-06 Douille porte-tube de bobinage de brins de verre
CH352788D CH352788A (de) 1956-11-13 1957-11-07 Vorrichtung zum Ziehen von Glasfasern
GB34924/57A GB843668A (en) 1956-11-13 1957-11-08 An improved mechanism for winding strands subject to high constrictive force

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US621785A US2891798A (en) 1956-11-13 1956-11-13 Winding mandrel for packaging glass strands

Publications (1)

Publication Number Publication Date
US2891798A true US2891798A (en) 1959-06-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
US621785A Expired - Lifetime US2891798A (en) 1956-11-13 1956-11-13 Winding mandrel for packaging glass strands

Country Status (7)

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US (1) US2891798A (es)
BE (1) BE562272A (es)
CH (1) CH352788A (es)
DE (1) DE1050964B (es)
ES (1) ES238348A1 (es)
FR (1) FR1185810A (es)
GB (1) GB843668A (es)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099411A (en) * 1961-02-03 1963-07-30 Ind Devices Inc Collet assembly
US3141624A (en) * 1961-03-27 1964-07-21 Courtaulds Ltd Thread shrinking
US3195821A (en) * 1962-09-28 1965-07-20 Fibreglass Ltd High speed winding collet
US3254850A (en) * 1963-10-17 1966-06-07 Owens Corning Fiberglass Corp Apparatus for forming and collecting filamentary materials
US3360208A (en) * 1965-07-26 1967-12-26 Juan L Winkler Apparatus for winding textile threads
US3687381A (en) * 1970-01-29 1972-08-29 Owens Corning Fiberglass Corp Method for packaging glass strands
US3871592A (en) * 1973-08-03 1975-03-18 Ppg Industries Inc Apparatus for winding glass strands
US3910513A (en) * 1973-10-18 1975-10-07 Owens Corning Fiberglass Corp Collection tubes for rotary collection of filamentary material
US4093137A (en) * 1977-05-19 1978-06-06 Ppg Industries, Inc. Expandable collet
US5372331A (en) * 1993-06-15 1994-12-13 Tidland Corporation Expansible shaft for roll core
US5769342A (en) * 1996-12-13 1998-06-23 Ppg Industries, Inc. Ergonomic endcap, collets, winders, systems and methods of winding forming packages using the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2363768C2 (de) * 1973-12-21 1984-08-23 Akzo Gmbh, 5600 Wuppertal Aufwickelvorrichtung an Spinnmaschinen
US4101085A (en) * 1976-06-28 1978-07-18 Johns-Manville Corporation Radially expansible collet for a tubular sleeve
DE4121244A1 (de) * 1991-06-27 1993-01-07 Basf Magnetics Gmbh Wickelkern-spannvorrichtung
GB2588160B (en) * 2019-10-10 2022-09-21 Univ Brunel Adaptive precision chuck

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US16748A (en) * 1857-03-03 Centrifugal friction-clutch
US1870649A (en) * 1931-07-17 1932-08-09 Worcester Polytech Inst Centrifugal clutch
US2128980A (en) * 1936-09-18 1938-09-06 Anderton Alfred Automatic centrifugal clutch or brake
US2274681A (en) * 1938-09-28 1942-03-03 Owens Corning Fiberglass Corp Winding mechanism and method
US2690914A (en) * 1951-02-15 1954-10-05 George F Bryant Mandrel
US2738980A (en) * 1953-03-20 1956-03-20 Hilbert C Spahn Expansible arbors

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US16748A (en) * 1857-03-03 Centrifugal friction-clutch
US1870649A (en) * 1931-07-17 1932-08-09 Worcester Polytech Inst Centrifugal clutch
US2128980A (en) * 1936-09-18 1938-09-06 Anderton Alfred Automatic centrifugal clutch or brake
US2274681A (en) * 1938-09-28 1942-03-03 Owens Corning Fiberglass Corp Winding mechanism and method
US2690914A (en) * 1951-02-15 1954-10-05 George F Bryant Mandrel
US2738980A (en) * 1953-03-20 1956-03-20 Hilbert C Spahn Expansible arbors

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099411A (en) * 1961-02-03 1963-07-30 Ind Devices Inc Collet assembly
US3141624A (en) * 1961-03-27 1964-07-21 Courtaulds Ltd Thread shrinking
US3195821A (en) * 1962-09-28 1965-07-20 Fibreglass Ltd High speed winding collet
US3254850A (en) * 1963-10-17 1966-06-07 Owens Corning Fiberglass Corp Apparatus for forming and collecting filamentary materials
US3360208A (en) * 1965-07-26 1967-12-26 Juan L Winkler Apparatus for winding textile threads
US3687381A (en) * 1970-01-29 1972-08-29 Owens Corning Fiberglass Corp Method for packaging glass strands
US3871592A (en) * 1973-08-03 1975-03-18 Ppg Industries Inc Apparatus for winding glass strands
US3910513A (en) * 1973-10-18 1975-10-07 Owens Corning Fiberglass Corp Collection tubes for rotary collection of filamentary material
US4093137A (en) * 1977-05-19 1978-06-06 Ppg Industries, Inc. Expandable collet
US5372331A (en) * 1993-06-15 1994-12-13 Tidland Corporation Expansible shaft for roll core
US5445342A (en) * 1993-06-15 1995-08-29 Tidland Corporation Expansible shaft for roll core
US5769342A (en) * 1996-12-13 1998-06-23 Ppg Industries, Inc. Ergonomic endcap, collets, winders, systems and methods of winding forming packages using the same
US6012672A (en) * 1996-12-13 2000-01-11 Ppg Industries Ohio, Inc. Ergonomic endcap, collets, winders, systems and methods of winding forming packages using the same

Also Published As

Publication number Publication date
GB843668A (en) 1960-08-10
CH352788A (de) 1961-03-15
DE1050964B (de) 1959-02-19
BE562272A (es)
FR1185810A (fr) 1959-08-06
ES238348A1 (es) 1958-05-01

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