US3554455A - Expandible mandrel for bobbins - Google Patents

Expandible mandrel for bobbins Download PDF

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Publication number
US3554455A
US3554455A US685896A US3554455DA US3554455A US 3554455 A US3554455 A US 3554455A US 685896 A US685896 A US 685896A US 3554455D A US3554455D A US 3554455DA US 3554455 A US3554455 A US 3554455A
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US
United States
Prior art keywords
rings
tubes
tube
bobbin
pair
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
US685896A
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English (en)
Inventor
Felix Graf
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Application granted granted Critical
Publication of US3554455A publication Critical patent/US3554455A/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
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/245—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages by deformation of an elastic or flexible material
    • B65H75/2455—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages by deformation of an elastic or flexible material deformation resulting from axial compression of elastic or flexible material
    • 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

Definitions

  • the expandible mandrels have been constructed with annular grooves which taper inwardly and contain compressed helical draw springs.
  • the annular grooves have been adjustable in width relative to the draw springs so that the draw springs could be pressed outwardly against the interior surface of the bobbin sleeve to grip the bobbin sleeve.
  • the friction between the spring and the bobbin sleeve has been relatively small such that extremely undesireable axial displacements of the bobbin sleeve have frequently been possible.
  • the spring has been compelled to slide on the groove walls which act as a key bed due to the narrowing of the grooves during expansion of the spring so that not only does a phenomena of wear result but also an uncontrolled sliding results.
  • expandible mandrels have been provided with rubber rings, each of which is contained within a wedge-shaped annular groove, instead of draw springs. In these cases, upon narrowing of the grooves, the rubber rings are deformed in an outward manner so as to frictionally engage the interior surface of a bobbin sleeve.
  • these expandible mandrels have had some shortcomings in that the centering of a bobbin sleeve has been perceptibly impaired due to the uncontrollable deformation of the rubber by the narrowing of the grooves.
  • the rubber material is limited in cross section, the deformation of the rubber ring outwardly, i.e. its range of elasticity and consequence chuck capacity, is limited. Further, since the rubber ring has slid on the surfaces of the grooves during expansion and relaxation, relatively large control forces have been necessary to overcome the resultant sliding friction.
  • the invention provides an expandible mandrel having at least one wedge-shaped groove which can be narrowed with a pair of deformable elastic annular rings in the wedgeshaped groove.
  • Each ring is positioned adjacent the other ring within the groove and is deformable in cross section.
  • the rings Upon narrowing of the groove to tighten the rings against a bobbin sleeve, the rings initially roll along the sloped surfaces of the groove as well as on each other in a radially outward direction without an essential change in cross-sectional shape. Subs'equently, the rings deform in cross section to form the surface areas necessary for the static friction on the bobbin sleeve and the sloped surface of the groove.
  • the cross-sectional deformation of the rubber rings is thus controllable so that centering of the gripped bobbin sleeve can beefi'ective with relatively no perceptible deviation. Further, the chucking capacity of the expandible mandrel is increased over that of single rings since the outward expansion of the rubber rings is increased.
  • FIG. 1 illustrates a cross-sectional view of an expandible mandrel of the invention
  • FIG. 2 illustrates a partial cross-sectional view of a pair of elastic deformable rings within a groove of the expandible mandrel before tightening against a bobbin sleeve;
  • FIG. 3 illustrates a view similar to FIG. 2 of the rings when tightened against a bobbin sleeve.
  • the expandible mandrel includes a cylinder 1 which is rotatably mounted on a shaft 2 as by roller bearings.
  • the shaft 2 is provided with a central bore 3 for the passage of a pressure fluid, such as air, from a suitable source (not shown) into the chamber formed between the shaft 2 and the cylinder 1.
  • a piston 4 is slidably mounted within the cylinder 1.
  • the piston 4 is slidably mounted in a closure plate 4' secured to the end of the cylinder 1 and biased by a compression spring 4".
  • a tube 6 having a sloped surface 5 at one end is secured to the piston 4 via a plate 6' andslidably mounted on the exterior of the cylinder 1 for simultaneous movement with the piston 4.
  • a second tube 7 having correspondingly sloped surfaces 8, 9 at each end is slidably mounted on the cylinder 1 coaxially of tube 6 while a third tube 10 having a sloped surface 11 facing the second tube and an outwardly directed flange 12 at the opposite end is fixed to the cylinder 1.
  • the adjacent sloped surfaces of the tubes 6, 7, 10 serve to define annular wedge-shaped grooves 13, 14 which taper inwardly in order to receive a pair of rings 15, 16 made of elastic material such as rubber or the like.
  • the rings 15, 16 are deformed between the respective tubes 6, 7, 10 so as to frictionally engage the inside surface of a bobbin sleeve 17 abutting the flange 12.
  • the rings 15, 16 in the other groove 13 roll down the sloped surfaces 9, 11 as the intermediate tube 7 moves away from the fixed tube 10.
  • the bobbin sleeve 17 can be axially extracted from the mandrel and replaced by a fresh bobbin eve
  • the pressure fluid feed is stopped and the pressure within the cylinder 1 relieved so as to permit the spring 4" to retract the piston 4 into the cylinder 1.
  • This causes the tube 6 to move to the left as viewed in FIG. 1 so that the pair of rings 15, 16 in each groove 13, 14 roll up the respective sloped surfaces as well as on each other.
  • the rings Upon contacting the bobbin sleeve, the rings begin to deform under the forces of the moving tubes 6, 7 so as to form gripping surface areas with the tubes and bobbin sleeve under sufiicient pressures for statically holding the bobbin sleeve on the cylinder 1.
  • Alternativelyjthe rings can initially be placedagainst the inside surface of the bobbin sleeve and one of the sloped surfaces of a groove, as shown in dotted lines in FIG. 2, without cross-sectional deformation. Thereafter, the rings can bedeformed, as indicated in FIG. 3, against the respective gripping surface areas.
  • An expandible bobbin mandrel for mounting a bobbin sleeve thereon comprising a plurality of coaxial tubes, each said tube having a sloped surface on at least one end thereof in-facing relation to an adjacent tube;
  • each said ring being disposed between a pair of adjacent tubes and each said ring being in circumferential contact with one of said sloped surfaces and each other, each said ring being of elastic deformable material and having a circular cross section;

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Winding Of Webs (AREA)
  • Load-Engaging Elements For Cranes (AREA)
US685896A 1966-12-13 1967-11-27 Expandible mandrel for bobbins Expired - Lifetime US3554455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1794566A CH443994A (de) 1966-12-13 1966-12-13 Hülsenspannvorrichtung

Publications (1)

Publication Number Publication Date
US3554455A true US3554455A (en) 1971-01-12

Family

ID=4429270

Family Applications (1)

Application Number Title Priority Date Filing Date
US685896A Expired - Lifetime US3554455A (en) 1966-12-13 1967-11-27 Expandible mandrel for bobbins

Country Status (5)

Country Link
US (1) US3554455A (de)
CH (1) CH443994A (de)
DE (1) DE1710108A1 (de)
FR (1) FR1546103A (de)
GB (1) GB1181700A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813051A (en) * 1972-06-15 1974-05-28 Karlsruhe Augsburg Iweka Bobbin-supporting chuck
US4458850A (en) * 1981-10-30 1984-07-10 Teijin Seiki Co., Ltd. Bobbin holder
US4575015A (en) * 1984-03-19 1986-03-11 Teijin Seiki Company Limited Fluid coupling device
US5913490A (en) * 1995-06-02 1999-06-22 Procter & Gamble Company Turret assembly
US6116669A (en) * 1998-03-20 2000-09-12 Scaglia Spa Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine
JP2015085944A (ja) * 2013-10-29 2015-05-07 日進医療器株式会社 包装用紙ロール体

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1005233B (it) * 1973-10-12 1976-08-20 S Spa Off Perfezionamenti ai bracci porta rocche con contropunte particolar mente per roccatrici automatiche e bracci cosi perfezionati
GB2128115A (en) * 1982-10-06 1984-04-26 Craftsman Tools Limited Expanding mandrels
US4978082A (en) * 1988-03-29 1990-12-18 Teijin Seiki Co., Ltd. Bobbin holder
GB8914281D0 (en) * 1989-06-21 1989-08-09 Rieter Scragg Ltd Winding devices
JPH0738964B2 (ja) * 1989-07-28 1995-05-01 三田工業株式会社 ドラムチャッキング装置
EP0879198A1 (de) * 1995-06-02 1998-11-25 The Procter & Gamble Company Spindel für revolverhaspel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365980A (en) * 1943-09-14 1944-12-26 U S Textile Machine Company Mandrel
US2564746A (en) * 1948-02-12 1951-08-21 American Viscose Corp Expansible package support
US2992787A (en) * 1959-02-18 1961-07-18 Honeywell Regulator Co Supporting device
US3166263A (en) * 1962-11-09 1965-01-19 Hupp Corp Thread winding machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365980A (en) * 1943-09-14 1944-12-26 U S Textile Machine Company Mandrel
US2564746A (en) * 1948-02-12 1951-08-21 American Viscose Corp Expansible package support
US2992787A (en) * 1959-02-18 1961-07-18 Honeywell Regulator Co Supporting device
US3166263A (en) * 1962-11-09 1965-01-19 Hupp Corp Thread winding machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813051A (en) * 1972-06-15 1974-05-28 Karlsruhe Augsburg Iweka Bobbin-supporting chuck
US4458850A (en) * 1981-10-30 1984-07-10 Teijin Seiki Co., Ltd. Bobbin holder
US4575015A (en) * 1984-03-19 1986-03-11 Teijin Seiki Company Limited Fluid coupling device
US5913490A (en) * 1995-06-02 1999-06-22 Procter & Gamble Company Turret assembly
US6116669A (en) * 1998-03-20 2000-09-12 Scaglia Spa Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine
US6402213B1 (en) 1998-03-20 2002-06-11 Scaglia Spa Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine
US6619711B2 (en) * 1998-03-20 2003-09-16 Scaglia Spa Device to automatically attach a bobbin-bearing shaft to a mandrel of a machine
JP2015085944A (ja) * 2013-10-29 2015-05-07 日進医療器株式会社 包装用紙ロール体

Also Published As

Publication number Publication date
DE1710108A1 (de) 1971-09-30
GB1181700A (en) 1970-02-18
FR1546103A (fr) 1968-11-15
CH443994A (de) 1968-02-15

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