EP0531285A1 - Tete de serrage pour cylindres de bobinage. - Google Patents

Tete de serrage pour cylindres de bobinage.

Info

Publication number
EP0531285A1
EP0531285A1 EP90909709A EP90909709A EP0531285A1 EP 0531285 A1 EP0531285 A1 EP 0531285A1 EP 90909709 A EP90909709 A EP 90909709A EP 90909709 A EP90909709 A EP 90909709A EP 0531285 A1 EP0531285 A1 EP 0531285A1
Authority
EP
European Patent Office
Prior art keywords
clamping
clamping head
pieces
clamping pieces
axial direction
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
EP90909709A
Other languages
German (de)
English (en)
Other versions
EP0531285B1 (fr
Inventor
Juergen Treutner
Walter Doerfel
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.)
Beloit Technologies Inc
Original Assignee
Beloit Technologies Inc
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 Beloit Technologies Inc filed Critical Beloit Technologies Inc
Publication of EP0531285A1 publication Critical patent/EP0531285A1/fr
Application granted granted Critical
Publication of EP0531285B1 publication Critical patent/EP0531285B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Definitions

  • the invention relates to a clamping head for winding tubes of the type reproduced in the preamble of claim 1.
  • Such a chip head is known from DE 1 574 438 B. It is used for winding web-like material, such as paper webs, film webs and the like. The like. Used on winding cores and also for unwinding such winding cores, with a tensioning head being clamped in a central, essentially circular recess at each end of the core in order to apply the torque required for winding or braking unwinding to the winding core or transfer from the winding tube.
  • a hexagonal clamping head shaft is provided, which is surrounded by segment-like clamping pieces. With their radially inner surfaces (contact surfaces), the clamping pieces lie flat against the six outer surfaces of the clamping head shank, as long as they are in their (not spread) rest position.
  • the radial outer surfaces of the clamping pieces which will later be brought into contact in the recess of the winding tube, form a circumference in the rest position which is normally less than the clear dimension of the recess at the front end of the winding tube.
  • the clamping pieces and the clamping head shaft can be turned relative to each other. As a result, the Sann pieces can be pressed evenly radially outward over their entire length as seen in the axial direction of the clamping head, so that their outer surfaces in the recess of the winding tube expand non-positively. As the web winds up, the roll diameter and thus the torque to be transmitted increases. This automatically leads to an increased spreading of the clamping pieces.
  • the removal of the winding sleeves from the clamping head is easier with another type of clamping head, as described, for example, in DE 28 15 310 C, than with the clamping heads of the type mentioned at the outset, because with this other known type of clamping head instead of one
  • An axial displacement between the clamping head shaft and the clamping pieces is carried out in order to achieve the expansion or contraction of the clamping pieces.
  • the sliding surfaces between the clamping head shaft and clamping head pieces are wedge-shaped.
  • An axial stop connected to the clamping pieces which comes into contact with the not yet expanded clamping pieces on the face of the sleeve, enables the transmission of a force acting in the axial direction, through which the clamping pieces slide along the clamping shaft and thereby spread out in the recess at the end of the winding tube.
  • the constant expansion path over the entire clamping length depends on the size of the insertion force applied in the axial direction.
  • the invention is therefore based on the object of providing a tensioning head of the type mentioned at the outset, in which the removal from the winding tube is facilitated when the torque-dependent expansion is obtained.
  • An inventive clamping head has u. a. the advantage that the radial expansion path is torque-dependent, so that damage to the winding cores, as well as slipping of the winding cores is avoided, and that the pulling off of the clamping head from the winding core is nevertheless facilitated.
  • the advantages of the two types of clamping head mentioned at the outset are thus combined with one another without the disadvantages occurring on both sides.
  • the advantage is also achieved that the relative position between the winding tube and the clamping head shaft in the axial direction is always exactly defined because the expansion path is always made up of a displacement-related and a torsion-related component, the displacement-related component always taking precedence because the clamping head must first be pushed in its axial direction before the twisting can start.
  • the relative position between the clamping pieces (and thus also the winding tube) and the clamping head shaft in the clamping heads of the second type is necessarily variable and undefined. However, this is generally undesirable.
  • the chip head according to claim 3 is proposed.
  • a comparatively low frictional resistance between the clamping head shaft and the clamping pieces during expansion or contraction is achieved by the features of claim 5.
  • particularly precisely definable relative positions between the clamping head shank and the clamping pieces are thereby achieved.
  • a certain sliding movement can also take place. The rolling movement can be realized in a particularly simple manner by the features of claim 6.
  • FIG. la a longitudinal section through the clamping head (section along line Ia-Ia according to FIG. 1b), FIG. lb a cross section through the clamping head according to FIG. la (section along line Ib-Ib ) and FIG. 1 c shows an end view of the clamping head according to FIG. 1 a (view A, ie without a cover);
  • FIG. 2a shows the same clamping head after completion of the clamping travel caused by axial displacement (section along the line IIa-IIa according to FIG. 2b);
  • FIGS. 1b and 1c and 2c the representations corresponding to FIGS. 1b and 1c and 2c for the working position of the clamping head shown in FIG. 2a;
  • 3a shows the same clamping head in a corresponding representation to 3c as in FIGS. 1a to 1c, but in a third working position (winding position, ie with clamping pieces firmly spread in the inside of the winding tube); 4a the same clamping head in a fourth working position, up to 4c, ie with the clamping head shaft still rotated relative to the clamping pieces but already retracted in the axial direction;
  • FIG. 5 shows a schematic front view of the same clamping head (corresponding to view A) to show the relative positions between the clamping head shaft and the clamping piece with and without mutual rotation;
  • FIG. 5th An alternative embodiment of the clamping head shank in the same representation as in Fig. 5th
  • a clamping head for winding cores 10 generally designated 100 in the figures, consists of a clamping head shaft 20, a sleeve-shaped part serving as clamping head housing 30, and clamping pieces 40.
  • winding sleeves 10 shown in the figures consist, as can be seen in FIGS. 1 a / b, of circular cylindrical tubes with end faces 11 and a concentric recess 12 accessible from the end, into which the clamping head 100 can be inserted in the axial direction.
  • Tubular winding sleeves are the most common, but in principle it is also possible to use closed cylindrical cylindrical bodies with corresponding recesses in the front ends as winding sleeves.
  • the clamping head shaft 20 is shaped as a truncated pyramid, the base 21 of which is fastened to a plate 22.
  • the plate 22 or the clamping head shank 20 itself are rotatably mounted on support arms in a manner known per se and may be driven in the direction of rotation about the axial direction B.
  • the clamping head shaft is designed as a cantilever shaft, that is, it is supported on one side.
  • the clamping head housing 30 is rotatably mounted with respect to its base 21 and its free end 23. There is also one at its free end Restoring device 50 to be described later.
  • the six clamping surfaces 24 of the clamping head shank 20 are slightly inclined to the axial direction B and are formed in a straight line in the direction of extension corresponding to the axial direction; on the other hand, the clamping surfaces 24 are concavely curved in the direction C of the clamping head circumference (see FIGS. 1c and 5), this concave curvature at the narrow end (free end 23) of the truncated pyramid being most pronounced and steadily decreasing to zero at the base 21. This can be seen particularly clearly from FIG. 5.
  • the six clamping pieces 40 evenly distributed on the circumference consist of pressure pieces 41 and sliding pieces 42, which are connected to one another in a manner known per se.
  • springs 44 are guided which (as can be seen from FIG. 1b) are designed as open rings and serve as return springs acting in the sense of contraction.
  • the sliders 42 are, as shown in Fig. La, rectilinear in the axial direction and, as can be seen from Figs. 5 and 6, convex in the transverse extent (circumferential direction C), so that their contact surface 45 with which they on the associated clamping surface 24 of the clamping head shank 20 lie, are of circular cylindrical shape.
  • the respective contact between the clamping piece and the clamping head shaft thus takes place along a contact line 46 (see FIGS. 5 and 6) - specifically regardless of the size of the angle of rotation between the clamping head shaft and the clamping piece.
  • the clamping head housing 30 has a cylindrical sliding surface 31 at the base end of the clamping head shaft and a cylindrical sliding surface 32 at the free clamping head end. At the base end, a flange-like, projecting stop 33 is connected in one piece to the clamping head housing or fastened to it. It forms a first end stop 34 for the end face 11 of the winding tube 10 and a second end stop 35 for the axial movement relative to the clamping head shaft 20, which interacts with the plate 22 (see FIG. 2a).
  • the clamping head housing 30 is provided with elongated openings 36, within which the clamping pieces 40 are received and arranged to be radially displaceable. End stops 37 limit the maximum possible expansion path of the clamping pieces 40.
  • the reset device 50 is located in a conically tapering cover 51 which is connected to the clamping head housing 30, for. B. is rotatably connected by screws, not shown in the drawing.
  • an annular or ring segment-shaped groove 52 is provided, in which two spiral springs 53, a cover-fixed, ie. H. thus there are also a stop 54 fixed to the housing and a circular ring-shaped driver 55.
  • the driver 55 is non-rotatably attached to the free front end of the clamping head shaft 20 via an arm 56 connected to it.
  • the driver 55 and the arm 56 are shaped in such a way that they can be rotated together within the cover 51 and with respect to the clamping head housing 30 against the restoring action of the springs 53.
  • the springs 53 hold the clamping head housing 30 and the clamping head shaft 20 in a neutral rotational position with respect to one another, as long as the clamping head is outside the winding sleeve or the rotation between the clamping head shaft and the clamping head housing has not yet taken place, which is in the working positions according to FIGS 2 is the case.
  • one of the springs 53 is tensioned and the other spring 53 is relaxed or tensioned in the opposite direction. This can be seen from FIGS. 3c and 4c.
  • the energy now stored in the compressed or expanded spring is only released again when the winding tube is removed from the clamping head.
  • FIGS. 1 a and 2 a show that the maximum possible displacement path in the axial direction B between the clamping head shaft 20 and the clamping head housing 30 is relatively small and on the one hand by means of the driving arm 56 through the inner surface 57 of the cover 51 and the end face 38 of the Clamping head housing 30 on the other hand is limited. In connection with the only slight taper of the clamping surfaces 24 of the clamping head shank 20 with respect to one another, this leads to the displacement-related expansion path of the clamping pieces 40 being relatively small. This is readily apparent from a comparison between FIGS. 1a and 2a.

Landscapes

  • Winding Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

Tête de serrage pour cylindres de bobinage sur lesquels s'enroulent ou se déroulent des matières en feuilles continues, telles que des feuilles continues de papier ou analogue, comportant une broche polygonale (20), et des pièces de serrage (40) appliquées sur cette broche, ces pièces (40) et la broche (20) étant mobiles en rotation l'une par rapport à l'autre, cette rotation produisant un déplacement radial (trajet d'expansion/contraction) de la pièce de serrage (40). Lorsqu'on obtient, pour cette tête, un écartement fonction du couple de rotation, le retrait de la tête du cylindre est facilité du fait que la broche (20) est configurée en forme de tronc de pyramide, les pièces de serrage (40) et la broche (20) sont déplaçables l'une par rapport à l'autre en direction axiale (B), les pièces des serrage (40) sont munies d'une butée de fin de course (34) agissant en direction axiale (B), pour le cylindre de bobinage, et d'une butée de fin de course (35) fixée sur la broche et agissant en direction axiale, ou sont montées coopérantes avec ces butées, et, le parcours de serrage (trajet d'expansion/contraction) des pièces de serrage (40) se compose d'une portion déterminée par la rotation et d'une portion déterminée par le déplacement, de telle façon que la (seconde) butée (35) parvienne dans sa position axiale de fin de course, avant que la fin du parcours de serrage soit atteinte.
EP90909709A 1990-05-26 1990-06-21 Tete de serrage pour cylindres de bobinage Expired - Lifetime EP0531285B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4017007 1990-05-26
DE4017007 1990-05-26

Publications (2)

Publication Number Publication Date
EP0531285A1 true EP0531285A1 (fr) 1993-03-17
EP0531285B1 EP0531285B1 (fr) 1994-02-16

Family

ID=6407260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90909709A Expired - Lifetime EP0531285B1 (fr) 1990-05-26 1990-06-21 Tete de serrage pour cylindres de bobinage

Country Status (7)

Country Link
EP (1) EP0531285B1 (fr)
JP (1) JPH0729710B2 (fr)
BR (1) BR9008024A (fr)
CA (1) CA2083815C (fr)
DE (1) DE59004646D1 (fr)
FI (1) FI101214B (fr)
WO (1) WO1991018819A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688732A2 (fr) 1994-06-23 1995-12-27 Valmet Paper Machinery Inc. Bout de fixation pour noyaux utilisés dans le bobinage

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6750324B1 (en) 1997-12-02 2004-06-15 Neuralab Limited Humanized and chimeric N-terminal amyloid beta-antibodies
US6905686B1 (en) 1997-12-02 2005-06-14 Neuralab Limited Active immunization for treatment of alzheimer's disease
DE102005021077A1 (de) * 2005-05-06 2006-11-09 Kampf Gmbh & Co Maschinenfabrik Spannkopf für eine Rollenschneid- und Wickelmaschine
EP2819941A1 (fr) * 2012-02-27 2015-01-07 I.E.S International Expanding Shafts S.R.L. Arbre extensible pour supporter des bobines et des dispositifs similaires
TR201902834T4 (tr) * 2014-08-12 2019-03-21 I E S Int Expanding Shafts S R L Bilhassa aktarma bobinleri için sürtünme millerinin sürtünme halkası.
CN112875368B (zh) * 2021-01-27 2023-05-09 重庆望变电气（集团）股份有限公司 硅钢冷涂后锥度张力收卷工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO133832C (fr) * 1966-10-13 1976-07-07 Sonoco Products Co
DE2815310C2 (de) * 1978-04-08 1982-06-16 Jagenberg-Werke AG, 4000 Düsseldorf Spannkopf für Wickelhülsen
DE2910114C2 (de) * 1979-03-15 1983-04-21 A. Ahlström Development GmbH, 7315 Weilheim Spannkopf für die Kernrohre von Wickeln aus Papier, Kunststoffolien u.dgl.
DE3700472A1 (de) * 1987-01-09 1988-07-21 Goebel Gmbh Maschf Expansions-spannkopf

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9118819A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0688732A2 (fr) 1994-06-23 1995-12-27 Valmet Paper Machinery Inc. Bout de fixation pour noyaux utilisés dans le bobinage
US5679108A (en) * 1994-06-23 1997-10-21 Valmet Corporation Fixing end for cores used in reeling

Also Published As

Publication number Publication date
DE59004646D1 (de) 1994-03-24
EP0531285B1 (fr) 1994-02-16
WO1991018819A1 (fr) 1991-12-12
FI925356A0 (fi) 1992-11-25
BR9008024A (pt) 1993-07-13
CA2083815A1 (fr) 1991-11-27
CA2083815C (fr) 1996-04-23
FI925356A (fi) 1992-11-25
FI101214B1 (fi) 1998-05-15
JPH05506634A (ja) 1993-09-30
JPH0729710B2 (ja) 1995-04-05
FI101214B (fi) 1998-05-15

Similar Documents

Publication Publication Date Title
DE1750663C3 (de) Ankerschraube
DE3720018C2 (de) Federnspanner
DE19738909A1 (de) Aufweitbare Welle und diese aufweisende Bandwickelvorrichtung
DE69209297T2 (de) Spreizbarer spanndorn
DE7540882U (de) Aufnahmevorrichtung fuer wickelhuelsen mit bandfoermigem material
EP0531285A1 (fr) Tete de serrage pour cylindres de bobinage.
DE1574438B2 (de) Dehnbarer spanndorn fuer rohrfoermige kerne
AT396580B (de) Spannkopf für wickelhülsen, auf die bahnförmiges gut, wie papierbahnen u. dgl., aufgewickelt wird
EP0086888B1 (fr) Dérouleur à main pour feuilles
DE60209076T2 (de) Reibungskupplung zur Energieübertragung mit begrenztem Drehmoment zwischen zwei Rollen eines Hangerätes
EP0741537B1 (fr) Distributeur d'essuie-tout
DE3116325A1 (de) "spannvorrichtung zum halten von hohlkernen oder rohren"
DE29506605U1 (de) Einfach teleskopier- und feststellbares Rohr
EP1412117B1 (fr) Element d'ecartement pour une pince de serrage et pince de serrage
DE2211518A1 (de) Vorrichtung zum aufspannen von rohrfoermigen wickelkernen
EP0234283A1 (fr) Mandrin élargisseur pour la fixation d'un tube tenant la pression dans une ouverture de plaque tubulaire
DE2814793C2 (de) Vorrichtung zum Abbremsen der Translationsbewegung zweier Teile
DE1948573B2 (de) Anlaßmotor für Brennkraftmaschinen
DE2832763B2 (de) Innere Stützwendel für einen Schlauch und Schlauchanordnung mit Stützspirale
DE3326244C1 (de) Längenverstellbare Tragstange für Vorhänge, Stative od. dgl.
DE1499775A1 (de) Doppelnabe fuer Spulen
DE4004943C1 (en) Winding core clamp for photographic material spool - has annular part formed by sectors of rigid material on spool flange
EP1295827A2 (fr) Dispositif de retenue pour des rouleaux de film
DE4103110A1 (de) Garnspulenhalter
DE69020881T2 (de) Abmontierbare Drahtspule.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19921120

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT SE

GBC Gb: translation of claims filed (gb section 78(7)/1977)
ITCL It: translation for ep claims filed

Representative=s name: RICCARDI SERGIO & CO.

17Q First examination report despatched

Effective date: 19930602

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT SE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940218

REF Corresponds to:

Ref document number: 59004646

Country of ref document: DE

Date of ref document: 19940324

ITF It: translation for a ep patent filed

Owner name: UFFICIO BREVETTI RICCARDI & C.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

EAL Se: european patent in force in sweden

Ref document number: 90909709.9

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020531

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020605

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030621

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030622

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030621

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050621

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050801

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070103