EP0306428A1 - Aufwickelspindel, um das Reibungsdrehmoment zu begrenzen - Google Patents

Aufwickelspindel, um das Reibungsdrehmoment zu begrenzen Download PDF

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Publication number
EP0306428A1
EP0306428A1 EP88450030A EP88450030A EP0306428A1 EP 0306428 A1 EP0306428 A1 EP 0306428A1 EP 88450030 A EP88450030 A EP 88450030A EP 88450030 A EP88450030 A EP 88450030A EP 0306428 A1 EP0306428 A1 EP 0306428A1
Authority
EP
European Patent Office
Prior art keywords
shaft
spacers
segments
drive
parts
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.)
Granted
Application number
EP88450030A
Other languages
English (en)
French (fr)
Other versions
EP0306428B1 (de
Inventor
Michel Nordlinger
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.)
Laroche Technology Sarl
Original Assignee
Laroche Technology Sarl
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 Laroche Technology Sarl filed Critical Laroche Technology Sarl
Publication of EP0306428A1 publication Critical patent/EP0306428A1/de
Application granted granted Critical
Publication of EP0306428B1 publication Critical patent/EP0306428B1/de
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
    • B65H75/246—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by relative rotation around the supporting spindle or core axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/021—Multiple web roll supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/04—Interior-supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4139—Supporting means for several rolls
    • B65H2301/41398—Supporting means for several rolls juxtaposed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/70—Clutches; Couplings
    • B65H2403/73—Couplings
    • B65H2403/731—Slip couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/40—Holders, supports for rolls
    • B65H2405/45—Shafts for winding/unwinding

Definitions

  • the present invention relates to a winding mandrel with friction torque limiter, intended more particularly, but not exclusively, for the simultaneous rewinding on several cores of several strips of any material, for example edge bands.
  • the object of the invention is to propose a device allowing, in a simple and rapid manner, the positioning and blocking on the rewinding mandrel of said cores as well as their removal, while allowing said mandrel to rotate constantly faster than the device delivering the strips to be rewound.
  • the subject of the invention is a winding mandrel with friction torque limiter, more particularly intended for simultaneous rewinding on several cores of strips of material, characterized in that it consists of a motor shaft on which are threaded coaxially and alternately annular spacers integral in rotation with the shaft and annular drive parts driven by friction by said spacers, the set of spacers-parts being tightened axially in an adjustable manner, radially expandable segments being carried by each annular drive part and slidably mounted substantially tangentially to said drive parts so as to deviate slightly from the shaft when they are moved in the direction opposite to that of rotation of said shaft.
  • the establishment and locking the rewind cores on the mandrel is particularly quick and easy. It suffices to thread the cores on the mandrel so that each overlaps at least partially a set of expandable segments of one of the drive parts and to cause the cores to drive said segments in rotation in opposite direction to that of the mandrel shaft to block the cores on the latter thanks to the expansion of the segments.
  • This blocking can be done by hand by pressing each core against one of the segments of the drive part concerned, the tangential sliding of the segments relative to the mandrel being ensured either manually, the mandrel being stopped, or, in the case where the mandrel rotates, by pulling the strip to be rewound, previously fixed to the core, or else by the aforesaid simple pressure exerted on the core.
  • the friction limiter constituted by the alternating succession of drive parts and friction spacers constantly ensures on each strip the tension necessary for its rewinding whatever the external diameter of the coil.
  • FIG. 1 shows a mandrel of a winding machine (not shown) comprising a motor shaft 1 provided over its entire length with a groove 2 parallel to its axis 3.
  • a spacer 4 On the shaft 1 are threaded two types of annular parts, namely a spacer 4 and a so-called drive part 5.
  • the parts 4 and 5 are distributed alternately, a drive part 5 being sandwiched between two spacers 4.
  • the spacers 4 are simple flat washers each provided with a radial hole 7 receiving for example a pin 8 penetrating into the groove 2 so that all the spacers 4 are integral in rotation with the shaft 1.
  • the sides of the spacers 4 in contact with the parts 5 are rectified so as to have the same coefficient of friction in line with the different parts 5, the material of which is chosen accordingly.
  • One of the materials known under the trade name "ERTALON” is particularly suitable for the present application.
  • the parts 5 are not keyed onto this shaft but only driven in friction friction rotation by said parts 4.
  • the parts 4, 5 are retained by a pair of special spacers 9, also keyed onto the shaft 1 by pins 8 and between which are arranged springs 10 for pressing 4.5 pieces against each other.
  • FIG. 1 shows two tightening positions of said nut 11.
  • each drive part 5 comprises (FIGS. 2 and 3) several segments expandable 13. These segments are three in number for each part 5 in the embodiment shown but could be in different numbers, greater than or even less than three.
  • Each segment 13 has an arcuate shape with the same curvature as the external cylindrical face of the bearing parts 5.
  • the segments 13 extend over an arc of a circle slightly less than 120 ° in the retracted position and are housed in a circular groove 14 formed in the periphery of the parts 5 and of rectangular section like the segments.
  • Each segment 13 is articulated, on its internal face and in its central part, for example on an elastic pin 15 coaxial with the axis 3 and passing through a boss 16 integral with the segment.
  • the ends of the pins 15 protrude from the bosses 16 and can freely slide in two parallel grooves 17.
  • the grooves 17 are formed in the flanks opposite the housings 18 produced in each part 5 to receive the bosses 16 of the segments 13, the bosses sliding on the bottom 18a (parallel to the grooves 17) of the housings.
  • the pairs of grooves have ends which are at different distances from the axis 3 of the mandrel and their arrangement is such that when a pin (15 ′, Figure 2) is at the end of the grooves closest to said axis 3 , the segment (13 ′) has an external diameter very slightly greater than that of the part 5, while in the other extreme position (15 ⁇ ) of the pin along the grooves 17, the segment (13 ⁇ ) is in its position of maximum radial expansion.
  • the pin goes from position 15 ′ closest to axis 3, to position 15 ⁇ furthest away by moving along grooves 17 approximately in the opposite direction to the direction of rotation (arrow 19, Figure 2 ) parts 5.
  • edgebands must be wound or rewound are threaded onto the mandrel, the latter being stopped.
  • Each core rests on at least one of the segments of a set of segments of one of the parts 5.
  • the core can possibly be offset axially with respect to said set of segments without any consequence.
  • each core and its drive part or parts 5 is carried out mainly in two ways.
  • the core is pressed with the hand against the underlying segment which projects slightly from parts 4 and 5 and the core is pivoted so as to pass said segment (as well as the other two by means of consequence) from the retracted position 13 ′ to the expanded position 13 ⁇ .
  • the end of the strip to be rewound can then be fixed on the core and the unwinding-rewinding machine started.
  • the band fixed in the stretched position on the core keeps the segments in the expanded position.
  • the mandrel according to the invention is driven at a speed always greater than the speed of unwinding or delivering the strips to be rewound. Consequently, all the bands being rewound remain constantly in tension, which maintains and reinforces the blocking of each core on its drive part or parts 5, said tension being however limited by the friction system provided between the parts 5 and parts 4.
  • the mandrel being stopped, the cores are threaded and the ends of the strips to be rewound fixed to the cores.
  • the machine is then started, the cores locking themselves on the parts 5, the blocking possibly being facilitated by pressing each core for a short time against the mandrel.
  • the cores have a diameter between the extreme diameters of retraction and expansion of the segments.
  • the cores which are usually made of cardboard, are not deformed by the segments 13 due to the large contact surface.
  • the external surface of the segments is advantageously striated or receives an anti-slip treatment.
  • the number of drive parts 5 with expandable segments 13 can of course vary within wide limits depending on the length of the mandrel and the width of each part 5.
  • the invention is obviously not limited to the embodiment shown and described above, but on the contrary covers all variants, in particular with regard to the number, shape and arrangement of the segments 13 on each part. drive 5, the guide means on this last piece of the segments to move them from their retraction position to their maximum expansion position, as well as the arrangement of the spacers 4 and friction means between the latter and said drive parts 5.

Landscapes

  • Winding Of Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
EP88450030A 1987-08-04 1988-08-04 Aufwickelspindel, um das Reibungsdrehmoment zu begrenzen Expired - Lifetime EP0306428B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8711175 1987-08-04
FR8711175A FR2619096B1 (fr) 1987-08-04 1987-08-04 Mandrin de bobinage a limiteur de couple a friction

Publications (2)

Publication Number Publication Date
EP0306428A1 true EP0306428A1 (de) 1989-03-08
EP0306428B1 EP0306428B1 (de) 1991-10-30

Family

ID=9353950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88450030A Expired - Lifetime EP0306428B1 (de) 1987-08-04 1988-08-04 Aufwickelspindel, um das Reibungsdrehmoment zu begrenzen

Country Status (6)

Country Link
EP (1) EP0306428B1 (de)
KR (1) KR0132215B1 (de)
DE (1) DE3865933D1 (de)
ES (1) ES2026685T3 (de)
FR (1) FR2619096B1 (de)
PT (1) PT88185B (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2161061A (en) * 1938-01-08 1939-06-06 Edward H Edelman Expansible mandrel
GB1079188A (en) * 1965-06-30 1967-08-16 Berta Kampf Winding shafts
FR2123400A1 (de) * 1971-01-29 1972-09-08 Midland Ross Corp
DE3000893A1 (de) * 1980-01-11 1981-08-20 Slavjanskij filial Vsesojuznogo naučno-issledovatel'skogo i proektno-konstruktorskogo instituta metallurgičeskogo mašinostroenija, Slavjansk, Doneckaja oblast' Vorrichtung zum mehrfachaufwickeln von bandmaterial unter spannung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2161061A (en) * 1938-01-08 1939-06-06 Edward H Edelman Expansible mandrel
GB1079188A (en) * 1965-06-30 1967-08-16 Berta Kampf Winding shafts
FR2123400A1 (de) * 1971-01-29 1972-09-08 Midland Ross Corp
DE3000893A1 (de) * 1980-01-11 1981-08-20 Slavjanskij filial Vsesojuznogo naučno-issledovatel'skogo i proektno-konstruktorskogo instituta metallurgičeskogo mašinostroenija, Slavjansk, Doneckaja oblast' Vorrichtung zum mehrfachaufwickeln von bandmaterial unter spannung

Also Published As

Publication number Publication date
KR890004294A (ko) 1989-04-21
KR0132215B1 (ko) 1998-04-11
PT88185A (pt) 1989-06-30
ES2026685T3 (es) 1992-05-01
PT88185B (pt) 1993-09-30
DE3865933D1 (de) 1991-12-05
EP0306428B1 (de) 1991-10-30
FR2619096B1 (fr) 1989-12-29
FR2619096A1 (fr) 1989-02-10

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