WO2005118446A1 - Rouleau elargisseur pince et sa realisation - Google Patents

Rouleau elargisseur pince et sa realisation Download PDF

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Publication number
WO2005118446A1
WO2005118446A1 PCT/EP2004/052730 EP2004052730W WO2005118446A1 WO 2005118446 A1 WO2005118446 A1 WO 2005118446A1 EP 2004052730 W EP2004052730 W EP 2004052730W WO 2005118446 A1 WO2005118446 A1 WO 2005118446A1
Authority
WO
WIPO (PCT)
Prior art keywords
spreader
roller
spreader roller
incisions
roll
Prior art date
Application number
PCT/EP2004/052730
Other languages
German (de)
English (en)
Inventor
Michael Podlesny
Karl-Heinz Schneiders
Original Assignee
Michael Podlesny
Karl-Heinz Schneiders
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 Michael Podlesny, Karl-Heinz Schneiders filed Critical Michael Podlesny
Priority to EP04791349A priority Critical patent/EP1751044A1/fr
Publication of WO2005118446A1 publication Critical patent/WO2005118446A1/fr

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
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1315—Details of longitudinal profile shape conical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1316—Details of longitudinal profile shape stepped or grooved
    • B65H2404/13162—Helicoidal grooves

Definitions

  • the invention relates to an spreader roller for spreading running flexible web material.
  • a spreader roller for spreading running flexible web material which comprises a rigid roller body having end journals outgoing incisions running obliquely to the longitudinal axis of the roller body, which are inclined on both sides of the radial central plane of the roller from the inside to the relevant end of the roller.
  • the incisions run in the form of uniform spirals and cause spreading during operation,
  • the internal incisions are arranged offset by 1 80 ° to each other.
  • the outer edges catfish to the radial center plane of the roller are rounded or chamfered.
  • An elastomeric covering wears out within a few years. A roller body is then freed from the remaining covering and a new covering is applied. Coils are then cut into this newly applied covering. Finally, edges on the surface of the covering are rounded off.
  • the spreader roll according to the invention has a roll body, on the roll body there is a lateral surface or a jacket-shaped covering which tapers from the outside to the inside.
  • the outer surface typically consists of an elastomeric material.
  • the taper reduces the load on a web of material and improves spreading overall.
  • the pressure with which a web of material is pressed against the spreader roller decreases from outside to inside.
  • the edge areas of a material web are detected and pulled apart in the sense of a spreading. In the area in between, a high contact pressure on the material web is avoided.
  • the low mechanical load in the middle area makes it possible to stretch even a still moist, thin paper web, which is known to be very sensitive and can easily be torn apart. Material webs made of aluminum are also very sensitive.
  • the lateral surface is designed in one piece. As a result, there are no corridors where the film could be damaged when passing the roller.
  • the area between the two tapers is rounded.
  • the manufacture is inexpensive. Edges on the surface of the jacket-shaped covering that could damage a material web are avoided.
  • incisions which achieve the spreading effect are limited to edge regions.
  • the roller can be manufactured accordingly cheaper. If, for example, 50% of the surface of the jacket-shaped covering is left free of incisions, the profiling costs can be reduced by 25% compared to the prior art mentioned at the beginning. In many cases it is possible to save 50% of incisions. This is especially the case when paper webs with a constant width are to be processed. Then the width of the spreader roller can be matched to the width of the material web , which reduces costs. A cutout of 25% is regularly possible even if material webs with changing widths are to be processed.
  • a further advantageous embodiment provides that the taper is formed by tapered sections.
  • the roller designed in this way is produced by turning and then grinding an originally cylindrical outer surface. With conical sections, the turning process is comparatively easy fold, grinding serves to provide a uniform, edge-free surface.
  • the lateral surface has helical incisions with which the wide-stretching effect is brought about. This prevents warpage of the material web from getting into the incisions, which could result in damage.
  • a further embodiment provides that an obtuse-angled transition (i.e. greater than 90 °) from the surface of the jacket-shaped covering is rounded or chamfered into an incision, so that markings in a material web are avoided.
  • an obtuse-angled transition i.e. greater than 90 °
  • the acute-angled transitions do not have to be rounded, since these generally do not leave any imprints, if at the same time a helical course of the incisions ensures that faults do not get into the incisions.
  • the jacket surface is surrounded by a tube-like casing, at least in the region which has incisions. If the cover wears out, then only the cover is replaced. It is not necessary to restore the entire jacket-shaped covering and cuts. The operating costs and restoration costs can thus be significantly reduced.
  • the manufacturing costs can be further reduced by combining two roller bodies provided with a corresponding covering to form an inventive one.
  • the two roller bodies are brought together by the axis held.
  • Each coating on one of the roller bodies tapers on the right to the left or from the left to the right and has, for example, only one helical incision.
  • the two incisions are accordingly undercut differently.
  • the invention further relates to a method for producing an spreader roller.
  • a jacket-like covering is vulcanized onto a roller body, which typically consists of aluminum, steel or CFRP.
  • the covering is twisted off so that there is a taper from outside to inside. The surface of the covering is then sanded.
  • the covering is provided with incisions,
  • the associated knife is only moved parallel to the roller axis. This has the consequence that the depth of the incisions decreases from outside to inside, and the incision angle does not change. The angle of an undercut or the oblique course of an incision into the covering does not then change.
  • the lateral surface is ground in the area of the incisions in a fourth step, in order to create rounded transitions into the incisions. It is particularly advantageous that the incisions are located only in the area of the outer ends of the roller body. Post-processing is therefore reduced compared to the prior art, since conventional spreader rolls have incisions distributed over the entire spreader roll,
  • the shell is preferably made of silicone, the material has proven to be particularly suitable,
  • a spreader roller can be produced in a particularly simple and inexpensive manner, which has the properties described above.
  • Figure 1 shows an embodiment of the spreader roller according to the invention in side view.
  • Figure 2 shows a section of the sectional view of a further embodiment.
  • the spreader roll 1 has a roll body with an integral jacket surface or jacket-shaped covering 5.
  • the roller body has bearing journals 6a, 6b at its ends. These serve for the rotatable mounting of the spreader roller.
  • FIG. 1 shows the stretched film 3b in section. sees.
  • the lateral surface or the jacket-shaped covering 5 has two sections 8a, 8b tapering towards one another.
  • the conical sections 8a, 8b have, in their edge regions, incisions 2a and 2b running in a helical shape. Spreading of the paper web 3a, 3b is achieved by the helical incisions 2a and 2b.
  • the slopes of the conical sections 8a, 8b of the lateral surface tapering towards the center ensure that the pressure in the edge area is as uniform as possible, which is based on the diameter of the roll increasing towards the respective outer edge of the roll.
  • the outer surface 5 is tapered or constricted in radius.
  • the paper web 3a, 3b preferably does not hang up during transport in the central region 4, so that there is no mechanical disadvantageous effect on the film 3a, 3b. With a suitable choice of the contact pressure and guidance of the paper web it can be achieved that the paper web only rests at the incisions 2a and 2b.
  • FIG. 2 shows a section of a section of an embodiment of the spreader roll according to the invention.
  • the lateral surface 5 of a roller body 1 a is provided with a helical, inclined notch 2 a.
  • the obtuse-angled transitions 9 from the surface of the jacket-shaped covering 5 into the incision 2a are rounded. Markings in a material web are avoided in this way.
  • the jacket-shaped covering 5 is encased in the area of the incisions 2a * and 2b by a tubular sheath 1 0, a material web which is stretched by the spreader roller that should not lie directly on the lateral surface 5 or the webs 1 1 formed by the incisions 2a, 2b, but on the casing 10. If the envelope 1 0 wears out, it is replaced. The otherwise usual, much more expensive replacement of the covering 5 can usually be omitted.
  • the depth 1 4 of the incisions or of a helical incision 2 a decreases from the outside to the inside in order to be able to manufacture inexpensively.
  • the desired effect can also be achieved by enveloping only edge regions 7a and 7b, each with a casing 10, which makes production particularly inexpensive.
  • the desired effect, and in particular the avoidance of mechanical stress in the middle region can generally be achieved better if the jacket-shaped covering 5 of the spreader roller tapers increasingly from the outside inwards.
  • transition between the two tapers 8a and 8b is preferably rounded.
  • the bottom 1 4 of each cut 2a, 2b is also preferably rounded.
  • the area that is measurably younger than the edge areas generally extends over a length of at least 25% overall length of the jacket-shaped covering 5.
  • the respective taper preferably runs continuously and in particular not step-like, since disadvantageous edges on the surface can be avoided.
  • a spreader roller according to the invention has, for example, a maximum diameter of 240 mm and a length of 2400 mm. In the direction towards the center, the diameter tapers from outside to inside to 236 mm.
  • the minimum diameter may be closer to an outer edge than to the other outer edge of the spreader roller.
  • the spreader roller is not driven independently.
  • a separate drive for the spreader roller should only be preferred at very high speeds.
  • means are usually also to be provided with which a spreader roller can be braked. A material web can then be exchanged faster.

Landscapes

  • Rolls And Other Rotary Bodies (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Paper (AREA)

Abstract

La présente invention concerne un rouleau élargisseur (1) qui sert à élargir une bande de matière souple (3a) en circulation. Le rouleau élargisseur (1) de l'invention présente un corps. Le corps du rouleau comprend une surface périphérique (5) qui présente un rétrécissement (8a, 8b) entre les deux extrémités du corps. Il a été constaté qu'étonnamment le rétrécissement a un effet positif sur le résultat de l'élargissement, de sorte que la formation de pli dans le film, par exemple par des incisions pratiquées dans celui-ci, est limitée en particulier au niveau du rétrécissement (8a, 8b).
PCT/EP2004/052730 2004-06-02 2004-10-29 Rouleau elargisseur pince et sa realisation WO2005118446A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04791349A EP1751044A1 (fr) 2004-06-02 2004-10-29 Rouleau elargisseur pince et sa realisation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410027080 DE102004027080B4 (de) 2004-06-02 2004-06-02 Eingeschnürte Breitstreckwalze
DE102004027080.5 2004-06-02

Publications (1)

Publication Number Publication Date
WO2005118446A1 true WO2005118446A1 (fr) 2005-12-15

Family

ID=34959157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/052730 WO2005118446A1 (fr) 2004-06-02 2004-10-29 Rouleau elargisseur pince et sa realisation

Country Status (3)

Country Link
EP (1) EP1751044A1 (fr)
DE (1) DE102004027080B4 (fr)
WO (1) WO2005118446A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010040665A1 (fr) 2008-10-08 2010-04-15 Karl-Heinz Schneiders Rouleau à surface rugueuse
DE202008018480U1 (de) 2008-10-08 2014-06-05 Michael Podlesny Breitstreckwalze mit aufgerauter, wendelförmiger Oberfläche

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191109765A (en) 1911-04-22 1912-01-18 William Partington Improvements in Devices for Expanding or Stretching Cloth.
US2594846A (en) 1946-02-16 1952-04-29 Bechter Hermann Means for stretching the cloth web in weft direction in looms
US3283981A (en) 1962-04-26 1966-11-08 Du Pont Film advancing roll
JPS59198238A (ja) 1983-04-26 1984-11-10 Toshiba Corp 紙送り装置
EP0728691A1 (fr) * 1995-02-21 1996-08-28 Voith Sulzer Papiermaschinen Gesellschaft mbH Dispositif pour enrouler ou derouler des bandes, en particulier des bandes de matériaux fibreux
DE29522011U1 (de) * 1994-09-23 1999-04-01 S.T.S. Breitstreckwalzen GmbH, 40882 Ratingen Breitstreckwalze
US6250220B1 (en) * 1999-08-10 2001-06-26 Quad/Graphics, Inc. Anti-wrinkle system for a web offset press
DE10135124A1 (de) 2001-07-19 2003-02-06 Lueraflex Gmbh G Lueckenotto Walze zur Führung von bahnenförmigem Material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE300550C (fr) *
US1748275A (en) * 1927-11-30 1930-02-25 Birch Albert Cloth-handling machine
DE10206568B4 (de) * 2002-02-18 2004-01-08 LÜRAFLEX GmbH Gerhard Lückenotto Walze zur Führung von bahnenförmigem Material

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191109765A (en) 1911-04-22 1912-01-18 William Partington Improvements in Devices for Expanding or Stretching Cloth.
US2594846A (en) 1946-02-16 1952-04-29 Bechter Hermann Means for stretching the cloth web in weft direction in looms
US3283981A (en) 1962-04-26 1966-11-08 Du Pont Film advancing roll
JPS59198238A (ja) 1983-04-26 1984-11-10 Toshiba Corp 紙送り装置
DE29522011U1 (de) * 1994-09-23 1999-04-01 S.T.S. Breitstreckwalzen GmbH, 40882 Ratingen Breitstreckwalze
EP0728691A1 (fr) * 1995-02-21 1996-08-28 Voith Sulzer Papiermaschinen Gesellschaft mbH Dispositif pour enrouler ou derouler des bandes, en particulier des bandes de matériaux fibreux
US6250220B1 (en) * 1999-08-10 2001-06-26 Quad/Graphics, Inc. Anti-wrinkle system for a web offset press
DE10135124A1 (de) 2001-07-19 2003-02-06 Lueraflex Gmbh G Lueckenotto Walze zur Führung von bahnenförmigem Material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010040665A1 (fr) 2008-10-08 2010-04-15 Karl-Heinz Schneiders Rouleau à surface rugueuse
DE102008042690A1 (de) 2008-10-08 2010-04-15 Michael Podlesny Breitstreckwalze mit aufgerauter, wendelförmiger Oberfläche
DE202008018480U1 (de) 2008-10-08 2014-06-05 Michael Podlesny Breitstreckwalze mit aufgerauter, wendelförmiger Oberfläche

Also Published As

Publication number Publication date
EP1751044A1 (fr) 2007-02-14
DE102004027080A1 (de) 2005-12-29
DE102004027080B4 (de) 2007-04-26

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