EP1336680B1 - Rouleau élargisseur pour le guidage des matières en bandes - Google Patents

Rouleau élargisseur pour le guidage des matières en bandes Download PDF

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Publication number
EP1336680B1
EP1336680B1 EP03002706A EP03002706A EP1336680B1 EP 1336680 B1 EP1336680 B1 EP 1336680B1 EP 03002706 A EP03002706 A EP 03002706A EP 03002706 A EP03002706 A EP 03002706A EP 1336680 B1 EP1336680 B1 EP 1336680B1
Authority
EP
European Patent Office
Prior art keywords
incision
incisions
coating
lining
starting point
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
EP03002706A
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German (de)
English (en)
Other versions
EP1336680A2 (fr
EP1336680A3 (fr
Inventor
Winfried Flass
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.)
Lueraflex Gerhard Lueckenotto GmbH
Original Assignee
Lueraflex Gerhard Lueckenotto GmbH
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Filing date
Publication date
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Application filed by Lueraflex Gerhard Lueckenotto GmbH filed Critical Lueraflex Gerhard Lueckenotto GmbH
Publication of EP1336680A2 publication Critical patent/EP1336680A2/fr
Publication of EP1336680A3 publication Critical patent/EP1336680A3/fr
Application granted granted Critical
Publication of EP1336680B1 publication Critical patent/EP1336680B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
    • D06C3/06—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics by rotary disc, roller, or like apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • B65H23/0251—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis
    • B65H23/0256—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis with opposed helicoidal windings

Definitions

  • the invention relates to a roller for guiding sheet material.
  • Corresponding rolls are also known as so-called spreader rolls, with which web-shaped material is stretched, or as so-called separating rolls, with which web-shaped material is separated into a plurality of webs.
  • Spreader rolls regularly comprise a support shaft and a deformable lining arranged on the support shaft and having a substantially cylindrical peripheral surface.
  • the peripheral surface extends substantially rotationally symmetrical to the axis of the support shaft.
  • the lining has helical cuts
  • Spreader rolls are known from DE 20 51 425, the covering of which has helical or screw-groove cuts.
  • US Pat. No. 4,566,162 A discloses sheet stretching rollers with helical incisions, wherein a helical groove extends in each case from the center plane to the one or to the other end of the spreader roller. The inner ends of these incisions are angularly offset from one another.
  • EP 0 703 176 A1 describes a spreader roll in which the notches provided on either side of the radial center plane of the roll are each in the form of an undercut uniform spiral extending from the median plane to the respective outer end of the roll.
  • the purpose of the said sheet stretching rollers is to smoothly spread a sheet-like material, such as thin films, paper webs and textile webs, before it is further processed.
  • sheet stretching rollers have been developed in which the cutting depth increases towards the end of the lining.
  • the invention has for its object to provide a spreader roll with an improved spreader effect available.
  • an improved spreading effect can be achieved if, in addition to the first incisions extending to each end of the covering of the spreader roll, at least one further incision extends towards the respective end, the starting point of the further incision being relative to the starting point of the first Incision is arranged offset axially in the direction of the respective end.
  • at least two incisions extend at each end of the lining, but their starting points are arranged offset axially.
  • the resulting broad spreading effect is based on the following finding:
  • the spreading effect of the spreader roll is greater, the greater the pitch of the cuts.
  • the pitch can not be too large, since the distance between successive cuts would then be too large and the "land" remaining between the cuts would be too wide. Since the "bridge", so the area of the lining between the Windings of an incision, does not contribute to the spreading effect, the distance between the windings must not be too large.
  • the invention further incision between a first incision is arranged quasi in the "web" between the turns of the first incision.
  • this section of the lining can also contribute to the spreading effect.
  • the starting points of the first cuts may be located anywhere on the pad. You can, for example, on a plane perpendicular to the support shaft, imaginary center plane of the spreader roller, which divides the spreader roll quasi in half. They can also lie in the area of the mid-plane, ie adjacent to the median plane. The starting points can lie on the side facing away from the end of the covering, up to which the first incisions extend from the respective starting point, or on the opposite side (in the latter case, the incisions then extend over the median plane) of the median plane.
  • the number of first incisions that run to the end of the lining is basically arbitrary. It can be provided that only one first incision extends to each end of the lining. However, it can also be provided that two, three, four or even more incisions are made for each end of the lining.
  • Spreader rolls with a plurality of incisions running towards the end of the coating are known from the prior art. They are also referred to as "multi-pass" spreader rolls.
  • the starting points of the first incisions may be radially offset from each other.
  • the distance of the offset can be even.
  • their starting points can therefore be offset, for example, by an angle of rotation of 180 ° with respect to one another, with three incisions by an angle of rotation of 120 °, with four incisions by a angle of rotation of 90 ° and so on.
  • two or more cuts have the same starting point and run with different pitch towards the end of the lining.
  • the first cuts can be at a distance from each other or intersect, ie "intersect". This applies both to the first cuts, which each extend to the same end of the lining as well as to the cuts, which extend to different ends of the lining. In this case, there is a quasi “diamond pattern" on the surface of the coating.
  • the course of the first incisions is helical (spiral).
  • This helical course can be continuous (that is, with a constant pitch) or discontinuous (that is, with a non-constant pitch).
  • pitch is understood to mean the distance of consecutive turns of the same cut measured parallel to the axis of the support shaft. It is thus equal to the relative axial displacement at a rotation angle of 360 °.
  • the first cuts extend with increasing slope towards the end of the lining.
  • the distance between successive turns of the first incision increases from its starting point to its outlet at the end of the lining. It can be provided that the slope increases continuously.
  • first incisions run with decreasing, for example continuously decreasing, slope towards the end of the covering.
  • the advantages of further incision reveal: With increasing distance of the turns of the first incision to the end of the lining out and the width of the "webs" of the lining increases between turns. According to the statements made above, the spreading effect decreases in these areas. By these webs also contribute to the spreading effect from the starting point of the further incision, the width stretching effect of a spreader roll with a first incision can be considerably increased by increasing the inclination increasing towards the end of the lining.
  • One or more further cuts may be provided.
  • the number of further incisions may be the same as the number of first incisions, ie, a further incision in the case of a first incision, two further incisions in the case of two first incisions, and so on.
  • the starting points of these further incisions may also be arranged offset axially with respect to the starting point of the respective other further incision, which extends to the same end of the lining out toward the relevant end of the lining.
  • the starting points of the further cuts can each lie on a plane perpendicular to the support shaft, imaginary plane of the spreader roll.
  • the starting points of these further cuts can be arranged radially offset from each other. Of the Distance of offset may be even.
  • their starting points can therefore be offset, for example, by a rotation angle of 180 ° relative to one another, with three incisions by a rotation angle of 120 °, with four incisions by a rotation angle of 90 °, and so on.
  • at least two starting points of further incisions lie on a plurality of spaced-apart planes. On this they can for example, in turn, as previously stated, evenly spaced from each other.
  • the starting points of at least one further incision in the region of the first to the fifth turn or the first to the third turn of the first incision, which extends to the same end of the lining is arranged.
  • a “turn” is understood to mean a rotation of a cut through 360 ° around the covering.
  • the “first turn” of the first incision is thus the distance covered by the first incision between its starting point to a point after a 360 ° turn around the plaque.
  • the “second turn” is accordingly the distance traveled by the incision between the point after a 360 ° turn and a 720 ° turn around the cover, and so on.
  • the further incision may be arranged uniformly spaced from the first incision, which extends to the respective same end of the lining. In other words, the further incision runs in the middle of the bridge between the adjacent turns of the first incision.
  • All or part of the incisions both the first incisions and the further incisions, may be arranged symmetrically to the median plane.
  • the cuts can be perpendicular (ie at an angle of 90 ° to the surface of the lining) or with an inclination to the surface of the lining, for example, at an angle between 80 ° and 40 ° or between 70 ° and 40 ° or between 60 ° and 45 °.
  • the inclination of each incision, at least in sections is greater in a section of the incision which is closer to the respective end of the covering than at its section closer to the starting point.
  • the inclination of each incision continuously increases from its starting point to its respective end at the end of the lining. The inclination of such an incision is thus starting at its starting point during its course towards the end of the lining out steadily larger.
  • the increase in the angle of inclination may be constant or variable, for example, continuously increasing or decreasing.
  • the flanks of an incision can be substantially parallel to one another.
  • the flanks can be flat or curved (arched). It is also possible to form the incisions in such a way that, in cross-section, they approximately have a trapezoidal shape opening at the base of the incisions, as is known for another type of spreader rollers from WO 88/05022. In the direction of the respective end of the lining, the incisions may each have an increasing cutting depth.
  • the diameter of the pad may be substantially constant or increase or decrease from the midplane to the respective end of the pad.
  • the term "diameter of the lining” is understood to mean the diameter of the lining in each case perpendicular to the supporting shaft, specifically in relation to the (imaginary) course of the surface of the lining (ie without cuts). This imaginary surface is rotationally symmetrical about the axis of the support shaft.
  • the diameter of the lining may increase or decrease symmetrically on both sides of the median plane.
  • the roller With a continuous decrease in the diameter of the covering from the median plane to the end of the covering, the roller has a frustoconical appearance on both sides of the median plane, with a truncated cone tapering from the median plane towards the end of the lining. With a corresponding increase in the diameter, the truncated cones widen towards the end of the lining.
  • the pad may be made of any deformable material, for example a plastic, a polyurethane, natural rubber, other rubbers or an elastomeric material such as silicone, silicone blends or chlorosulfonated polyethylene.
  • the support shaft may be made of any dimensionally stable material, for example steel and be designed as a tubular hollow body, for example.
  • the spreader roll 1 has a deformable lining 5 arranged on a support shaft 3.
  • the support shaft 3 is a hollow shaft made of steel, which is rotatably mounted about the axis A. Rotationally symmetrical to the axis A is arranged on the support shaft 3, the deformable lining 5 made of rubber. The surface of the pad 5 lies on the mantle of an imaginary cylinder. In the middle of the spreader roller 1 runs perpendicular to the support shaft 3, the center plane M. In the region of the median plane M, the covering has a circumferential taper 11.
  • Both to the left end 5L of the pad as well as to the right end 5R of the pad 5 each have a helical first incision.
  • the first notch extending from its starting point 7A to the left end 5L has the reference numeral 7.
  • the first notch extending from its starting point 9A to the right end 5R has the reference numeral 9.
  • the incisions 7 and 9 are arranged symmetrically to the median plane M.
  • the first incisions 7, 9 have a continuously increasing slope towards the respective end 5L, 5R
  • the starting points 7A and 9A are arranged in the region of the median plane M at a small distance from the median plane M in the covering.
  • the first incision 9 and the further incision 13 extend to the end 5R of the lining 5, while the first incision 7 and the further incision 15 extend to the end 5L of the lining 5.
  • the further incisions 13, 15 are arranged symmetrically to the median plane M.
  • the starting point 13A is arranged axially offset by the distance X with respect to the starting point 9A in the direction of the end 5R of the lining 5.
  • the starting point 15A is arranged axially offset by the distance Y with respect to the starting point 7A in the direction of the end 5L of the lining 5.
  • the further incisions 13, 15 are each arranged such that the remaining between the first sipes 7, 9 webs S are "halved" by the other cuts 13, 15 respectively.
  • the further incision 13 is therefore arranged in each case exactly in the middle between the turns of the first incision 9 and the further incision 15 respectively exactly in the middle between the turns of the first incision 7. Accordingly, the slope of the further cuts 13, 15 continuously increases toward the end of the lining.
  • the covering of the roller according to FIG. 2 has no circumferential taper 11 in the region of the center plane M.
  • rollers of Fig. 1 and Fig. 2 are formed substantially correspondingly.
  • the starting point 13A of the further cut 13 lies in the region of the second turn of the first cut 9, which runs to the same, right end 5R of the lining 5 as the further cut 13.
  • the starting point 15A of the further cut 15 lies in the region of the second turn of the first cut 7, which runs to the same, left end 5L of the lining 5 as the further cut 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Replacement Of Web Rolls (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (7)

  1. Rouleau élargisseur pour le guidage de matériaux en bandes avec les caractéristiques suivantes :
    a) un arbre support (3),
    b) un revêtement déformable (5) est disposé sur l'arbre support (3),
    c) chaque fois au moins une première gorge (7, 9) en forme d'hélice s'étend, depuis un point de départ (7A, 9A) dans le revêtement (5) jusqu'à chacune des extrémités (5L, 5R) du revêtement (5),
    caractérisé en ce qu'à chaque fois au moins une gorge supplémentaire (13, 15) en forme d'hélice s'étend jusqu'à chacune des extrémités (5L, 5R) du revêtement (5), gorge dont le point de départ (13A, 15A) est disposé décalé axialement (x, y) dans la direction de l'extrémité concernée (5L, 5R) du revêtement (5) par rapport au point de départ (7A, 9A) de la première gorge (7, 9) s'étendant jusqu'à la même extrémité (5L, 5R) du revêtement (5).
  2. Rouleau élargisseur selon la revendication 1, sur lequel les premières gorges (7, 9) s'étendent jusqu'à l'extrémité (5L, 5R) du revêtement (5) suivant un pas croissant.
  3. Rouleau élargisseur selon la revendication 1, sur lequel les premières gorges (7, 9) s'étendent jusqu'à l'extrémité (5L, 5R) du revêtement suivant un pas croissant continuellement.
  4. Rouleau élargisseur selon la revendication 1, sur lequel les points de départ (7A, 9A) des premières gorges (7, 9) se situent dans la région de ou sur un plan médian (M) imaginaire du rouleau élargisseur s'étendant perpendiculairement à l'arbre support (3).
  5. Rouleau élargisseur selon la revendication 1, sur lequel les points de départ (13A, 15A) des gorges supplémentaires (13, 15) sont disposés dans la zone entre le premier et le cinquième tour de la première gorge (7, 9) qui s'étend en direction de la même extrémité (5L, 5R) du revêtement (5).
  6. Rouleau élargisseur selon la revendication 1, sur lequel les points de départ (13A, 15A) de la gorge supplémentaire (13, 15) sont disposés dans la zone entre le premier et le troisième tour de la première gorge (7, 9) qui s'étend en direction de la même extrémité (5L, 5R) du revêtement (5).
  7. Rouleau élargisseur selon la revendication 1, sur lequel les gorges supplémentaires (13, 15) sont disposées à égale distance des premières gorges (7, 9) qui s'étendent respectivement en direction de la même extrémité (5L, 5R) du revêtement (5).
EP03002706A 2002-02-18 2003-02-06 Rouleau élargisseur pour le guidage des matières en bandes Expired - Lifetime EP1336680B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10206568 2002-02-18
DE10206568A DE10206568B4 (de) 2002-02-18 2002-02-18 Walze zur Führung von bahnenförmigem Material

Publications (3)

Publication Number Publication Date
EP1336680A2 EP1336680A2 (fr) 2003-08-20
EP1336680A3 EP1336680A3 (fr) 2004-08-25
EP1336680B1 true EP1336680B1 (fr) 2006-04-05

Family

ID=27618740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03002706A Expired - Lifetime EP1336680B1 (fr) 2002-02-18 2003-02-06 Rouleau élargisseur pour le guidage des matières en bandes

Country Status (3)

Country Link
EP (1) EP1336680B1 (fr)
AT (1) ATE322567T1 (fr)
DE (2) DE10206568B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756941A (zh) * 2012-07-11 2012-10-31 吴江市新申铝业科技发展有限公司 一种螺纹辊筒
CN102862851A (zh) * 2012-10-24 2013-01-09 广东精英纺织有限公司 一种展边辊轮

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004027080B4 (de) * 2004-06-02 2007-04-26 Michael Podlesny Eingeschnürte Breitstreckwalze
DE102007056537A1 (de) 2007-11-23 2009-05-28 Windmöller & Hölscher Kg Vorrichtung zum Transportieren und Breitstrecken einer Materialbahn
DE102008042690A1 (de) 2008-10-08 2010-04-15 Michael Podlesny Breitstreckwalze mit aufgerauter, wendelförmiger Oberfläche
CN116334870A (zh) * 2023-04-10 2023-06-27 山东广泰环保科技有限公司 一种新型扩幅辊、新型扩幅辊的加工方法及染整设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2717037A (en) * 1950-05-03 1955-09-06 Beloit Iron Works Winder and sheet separator
GB731079A (en) * 1952-06-12 1955-06-01 Cameron Machine Co Improvements in method of, and means for, laterally separating sections of flexible web material
US3652002A (en) * 1969-10-25 1972-03-28 Pen Croft Dyeing And Printing Traction devices
US4566162A (en) * 1982-10-26 1986-01-28 American Roller Company Stretcher/expander roller
DE8700374U1 (de) * 1987-01-09 1987-03-19 Lüraflex GmbH Gerhard Lückenotto, 40880 Ratingen Breitstreckwalze für Bahnenwerkstoffe
DE9415394U1 (de) * 1994-09-23 1994-11-24 Eswe-Flex Walzen GmbH, 40699 Erkrath Breitstreckwalze
DE19906694C2 (de) * 1999-02-18 2002-04-11 Lueraflex Gmbh G Lueckenotto Breitstreckwalze

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102756941A (zh) * 2012-07-11 2012-10-31 吴江市新申铝业科技发展有限公司 一种螺纹辊筒
CN102862851A (zh) * 2012-10-24 2013-01-09 广东精英纺织有限公司 一种展边辊轮
CN102862851B (zh) * 2012-10-24 2015-06-10 广东精英纺织有限公司 一种展边辊轮

Also Published As

Publication number Publication date
EP1336680A2 (fr) 2003-08-20
ATE322567T1 (de) 2006-04-15
EP1336680A3 (fr) 2004-08-25
DE10206568B4 (de) 2004-01-08
DE10206568A1 (de) 2003-09-04
DE50302853D1 (de) 2006-05-18

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