EP1967474A1 - Rouleau applicateur élargisseur - Google Patents

Rouleau applicateur élargisseur Download PDF

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Publication number
EP1967474A1
EP1967474A1 EP07425131A EP07425131A EP1967474A1 EP 1967474 A1 EP1967474 A1 EP 1967474A1 EP 07425131 A EP07425131 A EP 07425131A EP 07425131 A EP07425131 A EP 07425131A EP 1967474 A1 EP1967474 A1 EP 1967474A1
Authority
EP
European Patent Office
Prior art keywords
roll
bearing
crown
elastomer
spreader roll
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
EP07425131A
Other languages
German (de)
English (en)
Other versions
EP1967474B1 (fr
Inventor
Giovanni Luigi Bottelli
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.)
Huyck Italia SpA
Original Assignee
Huyck Italia SpA
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 Huyck Italia SpA filed Critical Huyck Italia SpA
Priority to EP20070425131 priority Critical patent/EP1967474B1/fr
Priority to DE200760004824 priority patent/DE602007004824D1/de
Publication of EP1967474A1 publication Critical patent/EP1967474A1/fr
Application granted granted Critical
Publication of EP1967474B1 publication Critical patent/EP1967474B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B65H23/0258—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a bowed 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
    • 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
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/134—Axle
    • B65H2404/1341—Elastic mounting, i.e. subject to biasing means
    • 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
    • B65H2404/137—Means for varying longitudinal profiles
    • B65H2404/1371—Means for bending, e.g. for controlled deflection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
    • B65H2601/524—Vibration

Definitions

  • the invention relates to web processing machinery and in particular to web spreader roll.
  • So-called web spreader, expander or widener rolls are rotary parts that are extensively employed in machinery for the fabrication and/or for successive processing of continuous ribbons of materials of innumerable types. Machinery used in paper, plastic foil, printing and textile industries generally require the use of numerous spreader rolls.
  • WO 02/092293 A1 discloses a web spreader roll and method for spreading webs of materials wherein the spreader roll has a tapered diameter starting from a maximum diameter at the middle of the roll wherein the taper may have a straight, a parabolic or other profile.
  • JP 2004189412 discloses a bow adjustment mechanism and relative method for a segmented spreader roll made by a plurality of juxtaposed segments each independently supported at certain elevation from a planar support.
  • WO 2005/115894 A1 discloses a spreader roll composed by a tapered stationary axle and a one-piece tubular outer sleeve rotable about the axle and elastically flexible such to be able to bend.
  • WO 2006/045882 A1 discloses a spreader roll having a curved axle on which a plurality of roll segments are mounted, each on a sustaining roller bearing, and wherein flexible connector members connect juxtaposed ends of adjacent roll segments such that a terminal roll segment may be driven to rotate all the roll segments around the axle.
  • US 2006/0183613 A1 discloses a spreader roll having a tubular one-piece sleeve supported by a plurality of spools and the curvature of which is adjustable.
  • FIG. 1 A typical web spreader roll construction is shown in Figure 1 .
  • the depicted spreader roll is shown provided also with the often unnecessary, optional means of independent driving of the roll through a common belt transmission.
  • the drawing depicts only one end portion of the rotable part of the spreader roll that is composed by a plurality of roll segments 2, mounted on an bowed axle 1.
  • Each roll segment 2 has a ball bearing 3 installed at the middle of the segment, commonly retained by a pair of Seeger rings 4.
  • the first roll segment at one side end of the plurality of segments that form the rotable sleeve of the spreader roll, has a modified termination sustained by a second ball bearing 3' for solidly carrying a cantilever pulley P on which a common trapezoidal cross-sectional drive belt may run.
  • the plurality of roll segments 2 are slipped over the axle 1 in succession, inserting also O-rings 5 of an elastically deformable material (elastomer) and tubular spacers 6 that elastically compress the O-rings 5 at the corner between the side surface of the inner raceway rings 7 of the ball bearings 3 and the cylindrical surface of the axle 1, such to hold fast the inner raceway ring 7 onto the stationary axle 1.
  • O-rings 5 of an elastically deformable material (elastomer) and tubular spacers 6 that elastically compress the O-rings 5 at the corner between the side surface of the inner raceway rings 7 of the ball bearings 3 and the cylindrical surface of the axle 1, such to hold fast the inner raceway ring 7 onto the stationary axle 1.
  • the outer raceway ring 8 of the ball bearings supports the respective roll segment 2.
  • the juxtaposed spaced ends of two adjacent roll segments are joined by a flexible connector 9, typically of an elastomer. Therefore, the plurality of centrally supported rotable roll segments 2 revolves as a single-piece outer sleeve of the web expander roll.
  • a basic parameter of a web expander roll is the diameter of its rotable outer sleeve that, in combination with the spatial orientation of the convex part of the bowed roll and the arc of circumference engaged by the running web determines the transversal stretching action on the running web material, according to a common roll structure as the one depicted in Figure 1 , a certain outer diameter of the working surface of the spreader roll, generally commands the choice of the diameter of the stationary axle 1 and of the roller bearings used for supporting the roll segments 2 with minimum mechanical clearances in order to minimize vibrations and allow a high rotational speed. This implies a considerable increment of overall weight of the structure that generally goes well beyond what would required for satisfying only a stiffness requisite.
  • the construction generally requires a relatively expensive machining of the inner cylindrical surface of each roll segment to form the seats of the supporting roller bearing and of the retaining Seeger rings 4 as well as abutment steps at the two ends for installing the elastic spacing connectors 9.
  • the continuous web of paper, film or fabric being handled may have a width and mechanical strength characteristics such to be perfectly adequate to bring and keep in rotation the free-wheeling roll segments that are usually connected together to act as a free-wheeling sleeve of the spreader roll on which it runs.
  • a common belt transmission (as depicted in Fig. 1 ) must be used to drive in rotation a first roll segment at one side end of the spreader roll.
  • an outer tubular sleeve of a elastic material is forcibly pulled over the plurality of bearing supported roll segments for providing a single piece outer surfacing member of the spreader roll.
  • Vibratory characteristics of spreader rolls are extremely important; usually critical speed parameters are defined for every roll model in order to set appropriate safe speed ranges of operation.
  • each roll segment (or spool) of the spreader roll is sustained at both its ends on two bearing assemblies each comprising an outer crown portion of elastomer that engagingly sustains the two juxtaposed end portions of two adjacent roll segments.
  • the novel structure ensures an enhanced vibration-free support of each roll segment when rotating at high speed and subject to abrupt disuniformities of the load exerted on the segments by the running web.
  • the diameter of the bowed axle as well as of the inner and outer raceway rings of the bearings can be sensibly reduced without impairing stiffness characteristics of the spreader roll. This allows to achieve a significant weight reduction while preserving the same usable range of arc of contact with the running web, in other words allowing to significantly reduce the ratio between the diameter of the stationary axle and the outer diameter of the rotating "sleeve" of the spreader roll.
  • Figure 2 illustrates a first embodiment of the novel structure of this invention of basic geometrical parameters equivalent to those of the comparable prior art structure of Figure 1 .
  • a drive pulley P is associated to the first roll segment as in the example of prior structure of Figure 1 , in the assumption that the type of application of the spreader roll requires it.
  • each roll segment 2 is sustained at both its ends on bearing assemblies, each comprising an outer crown portion 10 of elastomer that engagingly sustains the spaced juxtaposed end portions of two adjacent roll segments.
  • the spacing between juxtaposed ends of the sustained roll segments may be in the order of few millimeters, depending on outer diameter and bow of the expander roll, in any case sufficient to prevent the rims of adjacent segments from touching each other when rotating about the concave part of the bowed structure, as it is well known to the skilled person.
  • the bearing assembly comprises a fixed bush 11 that is fastened onto the stationary axle 1 by a set screw.
  • a common ball bearing 3 is installed on the fixed bush 11, in a confinement space defined by the fixed bush 11 and by an inner metal portion 12 of the radially extending composite rotable crown composed of said outer portion of elastomer 10 and an inner metal portion 12.
  • the bearing 3 is held by an elastic washer 13 and Seeger ring 14 against abutment steps 15 and 16 of said fixed sleeve 11 and of the metal inner portion of the crown 12, respectively.
  • the stiffness of the roll segment itself, or in other words its wall thickness may be reduced for contributing to the reduction of the mass (inertia) of the rotating part of the spreader roll, which is enhanced also by the possibility of employing bearings of relatively small diameter.
  • each bearing assembly is a pre-fabricated one-piece composite formed by a ball bearing 3, the inner raceway ring 7 of which is directly bonded onto the cylindrical surface of the bowed shaft 1.
  • the outer raceway ring 8 of the bearing has a crown 10 of elastomer bonded or molded thereon such to form a single composite part.
  • the outermost surface of the crown of elastomer 10 has a narrow circular trench 17 on a sectional plane that extends into the elastomer to a depth sufficient to substantially de-couple the two outermost portions of the ealstomer crown 10, in terms of lateral swayings.
  • Each of two outermost portions of the partly spit body of the elastomer crown 10 engages with and sustains the end portion of a respective roll segment 2, swaying to one side and to the other in revolving about the bowed axle 1, in opposite directions to the swaying of the other portion that engages and supports the end of the adjacent roll segment.
  • Adequate engagement between the end portion of a tubular roll segment with the elastomer crown portion may be established in many different ways. For example, a moderate compression of a machined or precisely molded crown of elastomer 10, upon forcibly installing thereon the ends of the tubular roll segments can establish a secure interference-engagement of the parts that makes them to rotate as one piece. Glueing the end of the tubular roll segment onto the outermost surface on the elastomer crown is another viable technique.
  • Forming matching projections and recesses on the inner end surface of the tubular roll segment and on the surface of the supporting elastomer crown portion to be brought into a secure engagement upon installing the tubular segments onto the rotable bearing assemblies pre-installed onto the stationary bowed axle, is yet another effective technique.
  • the inner raceway rings 7 of the roller bearings may be bonded to the axle 1 by an adhesive, for example a powder loaded epoxy resin adhesive, a silicone based adhesive and alikes, in order to prevent rotation of the raceway rings around the stationary axle 1.
  • an adhesive for example a powder loaded epoxy resin adhesive, a silicone based adhesive and alikes, in order to prevent rotation of the raceway rings around the stationary axle 1.
  • the elastic characteristics of the radially extending elastomer crown portion 10 may be established in the design phase, in function of dimensions, characteristics of the web material, speed specifications, type, weight and mechanical characteristics of the tubular roll segments.
  • the elastomer is a natural or synthetic rubber having physical properties such as chemical and temperature resistance and hardness suited for the contemplated use or application of the expander roll.
EP20070425131 2007-03-07 2007-03-07 Rouleau applicateur élargisseur Expired - Fee Related EP1967474B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20070425131 EP1967474B1 (fr) 2007-03-07 2007-03-07 Rouleau applicateur élargisseur
DE200760004824 DE602007004824D1 (de) 2007-03-07 2007-03-07 Ausbreitwalze für Stoffbahnen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20070425131 EP1967474B1 (fr) 2007-03-07 2007-03-07 Rouleau applicateur élargisseur

Publications (2)

Publication Number Publication Date
EP1967474A1 true EP1967474A1 (fr) 2008-09-10
EP1967474B1 EP1967474B1 (fr) 2010-02-17

Family

ID=38320835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070425131 Expired - Fee Related EP1967474B1 (fr) 2007-03-07 2007-03-07 Rouleau applicateur élargisseur

Country Status (2)

Country Link
EP (1) EP1967474B1 (fr)
DE (1) DE602007004824D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107804734A (zh) * 2017-09-26 2018-03-16 常熟市龙略机电有限公司 一种展幅对中的导布辊组件及其应用的带式织物送布机
CN108298363A (zh) * 2018-03-06 2018-07-20 石狮市卓诚机械自动化设备有限责任公司 一种展布效果佳的展布装置

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099072A (en) * 1961-06-13 1963-07-30 Mount Hope Machinery Ltd Table roll with means for removing longitudinal curvature
DE2108702A1 (de) * 1971-02-24 1972-08-31 Eck & Soehne Joseph Knickwalze
EP0039042B1 (fr) * 1980-04-24 1985-02-13 Oy Wärtsilä Ab Réglage de la flexion d'un cylindre
WO1997000826A1 (fr) 1995-06-20 1997-01-09 Raahen Tevo Oy Agencement de palier et element d'accouplement d'un rouleau repartiteur
US20020077235A1 (en) * 2000-12-18 2002-06-20 Spencer Johnston Company Spreader roll
WO2002092293A1 (fr) 2001-05-17 2002-11-21 Milliken & Company Rouleau a etaler des les de tissu et procedes pour etaler des les de tissu
JP2004189412A (ja) 2002-12-11 2004-07-08 Mitsubishi Heavy Ind Ltd セグメントスプレッダロールの調整機構および調整方法ならびにワインダ設備
WO2005115894A1 (fr) 2004-05-29 2005-12-08 Voith Patent Gmbh Piece rotative
WO2006045882A1 (fr) 2004-10-25 2006-05-04 Pikorolls Oy Rouleau deplisseur
US20060183613A1 (en) * 2003-06-13 2006-08-17 Stowe Woodward Ag Spreader roll

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3099072A (en) * 1961-06-13 1963-07-30 Mount Hope Machinery Ltd Table roll with means for removing longitudinal curvature
DE2108702A1 (de) * 1971-02-24 1972-08-31 Eck & Soehne Joseph Knickwalze
EP0039042B1 (fr) * 1980-04-24 1985-02-13 Oy Wärtsilä Ab Réglage de la flexion d'un cylindre
WO1997000826A1 (fr) 1995-06-20 1997-01-09 Raahen Tevo Oy Agencement de palier et element d'accouplement d'un rouleau repartiteur
US20020077235A1 (en) * 2000-12-18 2002-06-20 Spencer Johnston Company Spreader roll
WO2002092293A1 (fr) 2001-05-17 2002-11-21 Milliken & Company Rouleau a etaler des les de tissu et procedes pour etaler des les de tissu
JP2004189412A (ja) 2002-12-11 2004-07-08 Mitsubishi Heavy Ind Ltd セグメントスプレッダロールの調整機構および調整方法ならびにワインダ設備
US20060183613A1 (en) * 2003-06-13 2006-08-17 Stowe Woodward Ag Spreader roll
WO2005115894A1 (fr) 2004-05-29 2005-12-08 Voith Patent Gmbh Piece rotative
WO2006045882A1 (fr) 2004-10-25 2006-05-04 Pikorolls Oy Rouleau deplisseur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107804734A (zh) * 2017-09-26 2018-03-16 常熟市龙略机电有限公司 一种展幅对中的导布辊组件及其应用的带式织物送布机
CN108298363A (zh) * 2018-03-06 2018-07-20 石狮市卓诚机械自动化设备有限责任公司 一种展布效果佳的展布装置
CN108298363B (zh) * 2018-03-06 2024-01-19 石狮市卓诚机械自动化设备有限责任公司 一种展布效果佳的展布装置

Also Published As

Publication number Publication date
DE602007004824D1 (de) 2010-04-01
EP1967474B1 (fr) 2010-02-17

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